Large Industrial-grade Shot Blasting Machine
The Large Industrial-grade Shot Blasting Machine is a high-efficiency, large-capacity surface treatment equipment widely used in industrial production fields such as machinery manufacturing, automotive, aerospace, shipbuilding, and steel structures. Unlike small lab manual shot blasting machines, this type of equipment is designed for mass production, featuring high automation, strong processing capacity, and stable performance. It can realize continuous and large-scale surface treatment of workpieces, such as rust removal, deburring, descaling, and surface roughening, which plays a crucial role in improving the quality of industrial products, extending the service life of workpieces, and enhancing the competitiveness of enterprises. This article will provide a detailed introduction to the Large Industrial-grade Shot Blasting Machine, including its structural composition, working principle, performance advantages, application scenarios, operation and control system, maintenance strategies, and safety management, to help relevant personnel fully understand and effectively use this equipment.
Structural Composition
The Large Industrial-grade Shot Blasting Machine has a complex and large-scale structure, which is composed of multiple functional systems, including the blasting system, workpiece conveying system, abrasive recycling and purification system, dust removal system, and control system. Each system is closely linked and cooperates with each other to ensure the smooth progress of the shot blasting process.
The blasting system is the core power unit of the machine, responsible for generating high-speed abrasive particle flow to impact the workpiece surface. It mainly consists of shot blasters, blasting chambers, and nozzles. The shot blaster is the key component that provides power for the abrasive particles. According to the working principle, it can be divided into centrifugal shot blasters and air blast shot blasters. Centrifugal shot blasters are widely used in large industrial-grade equipment due to their high efficiency and large output. They use a high-speed rotating impeller to accelerate the abrasive particles, and the speed of the abrasive particles can reach 80-120m/s. A large industrial-grade shot blasting machine is usually equipped with multiple shot blasters (2-8 or more) arranged around the blasting chamber to ensure that the workpiece is fully and evenly blasted. The blasting chamber is a large closed space made of high-strength steel plates with a thickness of 8-15mm. The inner wall is lined with thick wear-resistant manganese steel plates or polyurethane plates to withstand the long-term impact of a large number of abrasive particles. The size of the blasting chamber varies according to the processing capacity and the size of the workpiece, and can reach tens of meters in length, several meters in width and height, which can accommodate large workpieces such as steel beams, ship hull sections, and automotive chassis. The nozzles are made of wear-resistant materials such as tungsten carbide, which have a long service life. The number and arrangement of nozzles are designed according to the shape and size of the workpiece to ensure that the abrasive particle flow can cover the entire surface of the workpiece.
The workpiece conveying system is used to transport the workpiece into and out of the blasting chamber, and realize the continuous processing of the workpiece. According to the type and shape of the workpiece, different conveying methods are adopted, such as roller conveyor, hook conveyor, chain conveyor, and belt conveyor. Roller conveyors are suitable for conveying flat or cylindrical workpieces, such as steel plates, pipes, and shafts. They consist of a series of rollers driven by a motor, which can realize the continuous and stable conveying of workpieces. Hook conveyors are suitable for conveying hanging workpieces, such as auto parts, castings, and forgings. The workpiece is hung on the hook, and the hook moves along the track to drive the workpiece into the blasting chamber. During the conveying process, the workpiece can rotate to ensure uniform blasting. Chain conveyors are suitable for conveying heavy and irregular workpieces, such as large castings and steel structures. They have strong bearing capacity and stable conveying performance. Belt conveyors are suitable for conveying small and light workpieces, such as small hardware parts. The workpiece conveying system is equipped with a speed adjustment mechanism, which can adjust the conveying speed according to the processing requirements of the workpiece, so as to control the shot blasting time and ensure the processing quality.
The abrasive recycling and purification system is responsible for recycling, sorting, and purifying the abrasive particles used in the shot blasting process, so as to realize the reuse of abrasive particles and reduce production costs. It mainly consists of a hopper, a screw conveyor, a bucket elevator, a separator, and a storage silo. After the shot blasting process, the used abrasive particles, along with the impurities (rust, oxide scale, burrs, etc.) generated from the workpiece surface, fall into the hopper at the bottom of the blasting chamber. The screw conveyor transports the mixture of abrasive particles and impurities to the bucket elevator. The bucket elevator lifts the mixture to a certain height and dumps it into the separator. The separator uses the principle of gravity, centrifugal force, or wind force to separate the abrasive particles from the impurities. Common separators include cyclone separators, magnetic separators, and air separators. Cyclone separators separate the mixture by centrifugal force, suitable for separating large-particle impurities; magnetic separators are used to separate iron-containing impurities from non-magnetic abrasive particles; air separators separate the mixture by wind force, suitable for separating fine impurities. The purified abrasive particles are stored in the storage silo and then transported to the shot blasters for reuse through the feeding pipe. The separated impurities are discharged into the waste bin for centralized treatment.
The dust removal system is an important environmental protection and safety component of the Large Industrial-grade Shot Blasting Machine. The shot blasting process generates a large amount of dust, which contains a large number of abrasive particles and harmful substances (such as heavy metal particles, oxide dust, etc.). If not handled properly, it will pollute the environment and endanger the health of operators. The dust removal system of large industrial-grade equipment usually adopts a combined dust removal device, such as a cyclone dust remover + bag-type dust remover or a cyclone dust remover + electrostatic precipitator. The cyclone dust remover first removes the large-particle dust in the dust, reducing the load of the subsequent dust remover. The bag-type dust remover has high dust removal efficiency (up to more than 99.5%), which can effectively remove fine dust. The electrostatic precipitator is suitable for handling large air volume and high concentration dust, and has stable dust removal performance. The dust removal system is connected to the blasting chamber and the abrasive recycling system through a large-diameter dust suction pipe. The dust is sucked into the dust remover by the fan for filtration and purification. The filtered clean air is discharged into the atmosphere after reaching the national emission standards, and the collected dust is stored in the dust bin for centralized disposal in accordance with environmental protection requirements.
The control system is the "brain" of the Large Industrial-grade Shot Blasting Machine, responsible for controlling the operation of each system, realizing automatic and intelligent production. The control system usually adopts a PLC (Programmable Logic Controller) control system, which has the advantages of high reliability, strong anti-interference ability, and easy programming. The control panel is equipped with a touch screen, buttons, and indicators, which can realize the setting of process parameters (such as shot blasting time, conveying speed, abrasive flow rate), the start and stop of each system, and the monitoring of equipment operation status. The control system can also realize automatic fault diagnosis and alarm functions. When the equipment fails (such as blockage of the feeding pipe, overload of the motor, abnormal operation of the dust removal system), the system will automatically stop the relevant system and issue an alarm, prompting the operator to handle it in time. Some advanced large industrial-grade shot blasting machines are also equipped with a remote monitoring system, which allows technicians to monitor the operation status of the equipment in real time through a computer or mobile phone, and conduct remote maintenance and troubleshooting.
Working Principle
The working principle of the Large Industrial-grade Shot Blasting Machine is based on the mechanical impact effect of high-speed abrasive particles on the workpiece surface. Through the high-speed impact of abrasive particles, the surface impurities of the workpiece are removed, and the surface is roughened, so as to improve the surface quality and performance of the workpiece. The specific working process of the continuous large industrial-grade shot blasting machine is as follows:
1. Workpiece feeding: The workpiece to be processed is placed on the workpiece conveying system (such as a roller conveyor or hook conveyor) manually or by a robot. The operator sets the relevant process parameters (such as conveying speed, shot blasting time, abrasive flow rate) through the control panel.
2. Pre-cleaning (optional): Some large industrial-grade shot blasting machines are equipped with a pre-cleaning device, such as a brush cleaning device or a high-pressure air blowing device. Before the workpiece enters the blasting chamber, the pre-cleaning device removes the large debris and loose impurities on the surface of the workpiece, which helps to improve the shot blasting effect and reduce the wear of the abrasive particles.
3. Shot blasting processing: The workpiece is conveyed into the blasting chamber by the conveying system. When the workpiece reaches the predetermined position, the control system automatically starts the shot blasters. The shot blasters accelerate the abrasive particles to a high speed (80-120m/s) through the high-speed rotating impeller and spray them onto the surface of the workpiece. The multiple shot blasters arranged around the blasting chamber spray the abrasive particle flow from different angles, ensuring that all surfaces of the workpiece are fully and evenly impacted. During the shot blasting process, the conveying system drives the workpiece to move or rotate slowly, so that the entire surface of the workpiece can be subjected to the impact of the abrasive particles. The impact force generated by the collision between the abrasive particles and the workpiece surface removes the rust, oxide scale, burrs, oil stains and other impurities on the workpiece surface. At the same time, the surface of the workpiece is roughened, forming a uniform matte surface or a specific roughness surface, which improves the adhesion of the coating and the mechanical properties of the workpiece surface.
4. Abrasive recycling and purification: After the shot blasting process, the used abrasive particles and the impurities generated from the workpiece surface fall into the hopper at the bottom of the blasting chamber. The screw conveyor transports the mixture to the bucket elevator, which lifts the mixture to the separator. The separator separates the abrasive particles from the impurities. The purified abrasive particles are stored in the storage silo and then transported to the shot blasters for reuse. The separated impurities are discharged into the waste bin.
5. Dust removal: During the shot blasting process and the abrasive recycling process, a large amount of dust is generated. The dust removal system sucks the dust into the dust remover through the dust suction pipe. The dust remover filters and purifies the dust, and the filtered clean air is discharged into the atmosphere. The collected dust is stored in the dust bin for centralized disposal.
6. Workpiece discharge: After the shot blasting process is completed, the conveying system transports the processed workpiece out of the blasting chamber. The operator takes the workpiece off the conveying system, checks the surface quality of the workpiece, and proceeds to the next process (such as painting, welding, etc.).
For batch processing of large workpieces, the Large Industrial-grade Shot Blasting Machine can also adopt an intermittent working mode. The workpiece is lifted into the blasting chamber by a crane, and the chamber door is closed. The shot blasters start to work, and the workpiece is rotated by a rotating mechanism in the chamber to ensure uniform blasting. After the shot blasting is completed, the shot blasters stop working, the chamber door is opened, and the workpiece is lifted out by a crane.
Performance Advantages
The Large Industrial-grade Shot Blasting Machine has a series of outstanding performance advantages, which make it an indispensable key equipment in industrial production. Firstly, it has high processing efficiency and large processing capacity. Equipped with multiple high-power shot blasters, the machine can spray a large number of high-speed abrasive particles in a unit time, which can complete the surface treatment of large workpieces or a large number of small workpieces in a short time. For example, a large steel plate shot blasting machine can process a steel plate of 10m×2m×0.02m in just a few minutes. The continuous conveying system enables the machine to realize continuous production, greatly improving the production efficiency and meeting the needs of mass production in industrial enterprises.
Secondly, it has stable processing quality and high precision. The control system of the machine can accurately control the process parameters such as shot blasting time, conveying speed, and abrasive flow rate, ensuring that each workpiece receives the same shot blasting treatment. The multiple shot blasters arranged scientifically can ensure that the entire surface of the workpiece is evenly blasted, avoiding the phenomenon of uneven surface treatment. The processing accuracy of the machine can reach Ra 0.4-6.3μm, which can meet the strict surface quality requirements of various industrial products. In addition, the machine can process workpieces of different materials (such as carbon steel, stainless steel, aluminum alloy, cast iron, etc.) and different shapes (such as flat, cylindrical, curved, irregular, etc.), with strong adaptability.
Thirdly, it has high automation and intelligence level. The PLC control system and touch screen operation interface make the operation of the machine simple and convenient. Operators only need to set the relevant process parameters and press the start button to realize the automatic operation of the machine, reducing the labor intensity of operators. The automatic fault diagnosis and alarm function can timely find and prompt equipment faults, reducing the maintenance time and cost. The remote monitoring system enables technicians to monitor the equipment operation status in real time, conduct remote maintenance and troubleshooting, improving the reliability and stability of equipment operation. Some advanced machines also adopt artificial intelligence technology, which can automatically adjust the process parameters according to the surface condition of the workpiece, further improving the processing quality and efficiency.
Fourthly, it has good economic benefits. The abrasive recycling and purification system of the machine can realize the reuse of abrasive particles, the recycling rate of abrasive particles can reach more than 95%, which greatly reduces the consumption of abrasive particles and the production cost. The high processing efficiency reduces the labor cost and improves the production capacity of the enterprise. The stable processing quality reduces the scrap rate of workpieces and improves the qualification rate of products. In addition, the machine has a long service life. The key components are made of high-quality wear-resistant materials, and the regular maintenance work is relatively simple, which reduces the maintenance cost and extends the service life of the equipment.
Fifthly, it has excellent environmental protection and safety performance. The combined dust removal system can effectively remove the dust generated during the shot blasting process, and the dust emission concentration is far lower than the national emission standard, which protects the environment and the health of operators. The machine is equipped with a complete safety protection device, such as a chamber door interlock device (the machine cannot be started when the chamber door is open), emergency stop buttons, safety guards, and warning signs. These devices can effectively prevent accidents such as personal injury and equipment damage, ensuring the safety of the production process.
Application Scenarios
The Large Industrial-grade Shot Blasting Machine is widely used in various industrial fields that require large-scale and high-efficiency surface treatment. Its main application scenarios include machinery manufacturing, automotive industry, aerospace industry, shipbuilding industry, steel structure industry, and railway locomotive manufacturing.
In the machinery manufacturing industry, the machine is used for the surface treatment of castings, forgings, and machined parts. For example, after casting and forging, the surface of castings and forgings will have a large amount of oxide scale, sand, and burrs. The shot blasting machine can effectively remove these impurities, improve the surface quality of the workpieces, and facilitate subsequent processing such as machining, painting, and assembly. It can also be used for the surface strengthening of mechanical parts, such as gears, bearings, and springs, to improve their fatigue strength and service life.
In the automotive industry, the Large Industrial-grade Shot Blasting Machine is an important equipment in the production process of automotive parts and body. It is used for the surface treatment of automotive chassis, engine parts, transmission parts, and body panels. For example, the automotive chassis needs to be shot blasted to remove rust and oxide scale before painting, so as to improve the adhesion of the coating and ensure the corrosion resistance of the chassis. The engine cylinder block and cylinder head need to be shot blasted to remove burrs and clean the surface, ensuring the precision and performance of the engine. Some large automotive manufacturers also use fully automatic shot blasting production lines to realize the continuous surface treatment of automotive parts, improving production efficiency and quality.
In the aerospace industry, the machine is used for the surface treatment of aerospace components, such as aircraft engine blades, landing gear, and fuselage structures. Aerospace components have high requirements for surface quality and performance, and the shot blasting machine can provide precise and uniform surface treatment. For example, the aircraft engine blade needs to be shot blasted to remove the oxide scale and burrs on the surface, and at the same time, the surface is strengthened to improve its fatigue strength and high-temperature resistance. The shot blasting process in the aerospace industry requires strict control of process parameters to ensure that the surface quality of the components meets the relevant standards.
In the shipbuilding industry, the machine is used for the surface treatment of ship hulls, decks, and marine equipment. The ship hull and marine equipment are in a harsh marine environment for a long time, which is prone to rust and corrosion. The shot blasting machine can effectively remove the rust, oxide scale, and old paint on the surface of the ship hull and marine equipment, and roughen the surface, so as to improve the adhesion of the anti-corrosion coating and extend the service life of the ship. Large shipyards usually use large-scale gantry shot blasting machines or crawler shot blasting machines to process large ship hull sections and marine equipment.
In the steel structure industry, the machine is used for the surface treatment of steel structures such as bridges, workshops, and stadiums. Steel structures are usually exposed to the outdoor environment, and rust and corrosion are prone to occur, which affects the safety and service life of the structure. The shot blasting machine can remove the rust, oxide scale, and oil stains on the surface of the steel structure, and form a uniform roughness surface, which is conducive to the application of the anti-corrosion coating. For example, before the construction of a bridge, the steel beams and steel plates of the bridge need to be shot blasted to ensure the anti-corrosion effect and structural safety of the bridge.
In the railway locomotive manufacturing industry, the machine is used for the surface treatment of railway locomotive bodies, bogies, and other components. Railway locomotives run in harsh environments for a long time, and their components are prone to wear and corrosion. The shot blasting machine can remove the rust and oxide scale on the surface of the components, and strengthen the surface, improving the service life and reliability of the components.
Operation and Control System
The operation and control system of the Large Industrial-grade Shot Blasting Machine is an important part to ensure the normal operation, automatic production, and processing quality of the equipment. It mainly consists of a PLC controller, a touch screen, a sensor, an actuator, and a wiring system. The system realizes the centralized control and management of each part of the machine through the collection, processing, and transmission of signals.
The PLC controller is the core of the control system. It adopts a modular design, which is easy to expand and maintain. The PLC controller collects the signals of various sensors (such as position sensors, speed sensors, pressure sensors, temperature sensors) installed on the equipment, such as the position signal of the workpiece, the conveying speed signal, the pressure signal of the abrasive pipeline, and the temperature signal of the motor. After processing these signals according to the pre-programmed program, the PLC controller sends control signals to the actuators (such as motors, solenoid valves, cylinders) to control the start and stop, speed adjustment, and action execution of each system.
The touch screen is the human-machine interaction interface of the control system. Operators can set process parameters, monitor equipment operation status, and operate the equipment through the touch screen. The touch screen displays various information in real time, such as the current conveying speed, shot blasting time, abrasive flow rate, the working status of each system (running, stopping, fault), and fault prompts. The setting of process parameters is simple and convenient. Operators only need to input the relevant parameters on the touch screen, and the PLC controller will automatically adjust the equipment according to the set parameters. The touch screen also has a historical data query function, which can query the production data and fault records of the equipment, facilitating the management and analysis of the production process.
Sensors are the "sensory organs" of the control system, responsible for collecting various physical quantities in the production process and converting them into electrical signals that can be recognized by the PLC controller. Common sensors used in the Large Industrial-grade Shot Blasting Machine include: position sensors (used to detect the position of the workpiece, ensuring that the workpiece enters the correct shot blasting position), speed sensors (used to detect the conveying speed of the workpiece and the rotation speed of the shot blaster impeller, realizing closed-loop control of the speed), pressure sensors (used to detect the pressure of the abrasive pipeline and the air pressure of the dust removal system, ensuring the normal supply of abrasive particles and the normal operation of the dust removal system), temperature sensors (used to detect the temperature of the motor and bearing, preventing overheating damage to the equipment), and level sensors (used to detect the level of abrasive particles in the storage silo, prompting operators to add abrasive particles in time).
Actuators are the executive components of the control system, responsible for executing the control commands sent by the PLC controller. Common actuators include: motors (used to drive the shot blasters, conveying system, bucket elevator, and fan), solenoid valves (used to control the on-off of the abrasive pipeline and the action of the cylinder), cylinders (used to control the opening and closing of the chamber door and the clamping of the workpiece), and frequency converters (used to adjust the speed of the motor, realizing stepless speed regulation of the conveying system and the shot blasters).
The wiring system of the control system is responsible for the transmission of electrical signals between the PLC controller, touch screen, sensors, and actuators. The wiring must be neat and standardized, with good insulation performance and anti-interference ability. The wiring system is usually equipped with a junction box and a cable tray, which facilitates the installation, maintenance, and replacement of wires.
The control system of the Large Industrial-grade Shot Blasting Machine also has a variety of protection functions, such as overcurrent protection, overload protection, overheating protection, and undervoltage protection. When the equipment has faults such as overcurrent, overload, overheating, or undervoltage, the control system will automatically cut off the power supply of the relevant part and issue an alarm, protecting the equipment from damage and ensuring the safety of the operator.
Maintenance Strategies
The Large Industrial-grade Shot Blasting Machine is a large-scale and complex equipment. Regular and scientific maintenance is crucial to ensure its stable operation, extend its service life, and reduce production costs. The maintenance strategies of the machine mainly include daily maintenance, periodic maintenance (weekly, monthly, quarterly, annual), and fault maintenance.
Daily maintenance: Daily maintenance is carried out by operators after each shift, mainly including the following contents: Clean the surface of the equipment and the surrounding working environment, remove dust, debris, and oil stains. Check the wear of the shot blaster impeller, nozzle, and lining plate of the blasting chamber; if the wear is serious, record it and arrange for replacement. Check the abrasive particles in the storage silo, and add them if necessary; check the working status of the abrasive recycling and purification system, and clean the separator and waste bin if there is blockage. Check the working status of the dust removal system, including the operation of the fan, the pressure of the dust suction pipe, and the dust collection in the dust bin; clean the dust bin in time. Check the tightness of the chamber door seal; if there is air leakage, adjust or replace the seal. Check the operation of the workpiece conveying system, including the rotation of the rollers, the tension of the chain, and the operation of the motor; add lubricating oil to the rotating parts if necessary. Check the control system, including the display of the touch screen, the operation of the buttons, and the status of the sensors; if there is an abnormal signal, handle it in time. Turn off the power supply and close the main valve of the compressed air (if any) after the maintenance is completed.
Periodic maintenance: Periodic maintenance is carried out by professional maintenance personnel according to a fixed cycle, mainly including the following contents:
Weekly maintenance: Check the wear of the shot blaster impeller blades and end plates; if the wear amount exceeds the limit, replace them. Check the bearing temperature and vibration of the shot blaster, motor, fan, and other rotating components; if the temperature is too high or the vibration is abnormal, check the lubrication and bearing status, and handle it in time. Check the tension and wear of the conveyor chain or belt; adjust the tension if necessary, and replace the worn chain or belt. Check the working status of the separator; clean the filter screen or cyclone cone, and check the wear of the separator components. Check the electrical connections of the control system; tighten the loose screws, and check the insulation performance of the wires.
Monthly maintenance: Disassemble and inspect the shot blaster, clean the impeller, blade, and shot blasting wheel; check the wear of the components, and replace the worn parts. Check the lining plate of the blasting chamber; if the lining plate is loose, falling off, or worn through, replace it. Check the abrasive conveying pipeline; clean the pipeline, remove the accumulated abrasive particles and impurities, and check the wear of the pipeline. Check the bucket elevator; clean the bucket, check the wear of the bucket and the chain, and adjust the tension of the chain. Check the dust remover filter bag or electrostatic precipitator electrode; clean or replace the filter bag, and clean the electrode. Check the hydraulic system (if any); check the oil level and oil quality of the hydraulic oil tank, and replace the hydraulic oil if necessary; check the hydraulic pipeline for leakage, and tighten the joints.
Quarterly maintenance: Conduct a comprehensive inspection of the entire equipment, including the structure, components, and control system. Check the foundation of the equipment for settlement or deformation; if so, adjust it. Check the wear of all rotating components (bearings, gears, sprockets, etc.); replace the worn components. Check the accuracy of the sensors and actuators; calibrate the sensors, and check the action accuracy of the actuators. Check the PLC program and parameters; back up the program, and restore the parameters if there is any deviation. Clean the control cabinet, remove the dust inside, and check the working status of the electrical components (such as relays, contactors).
Annual maintenance: Conduct a comprehensive overhaul of the equipment, including disassembly, inspection, repair, and replacement of components. Disassemble all key components of the machine, such as shot blasters, conveying systems, abrasive recycling systems, and dust removal systems, and clean and inspect them thoroughly. Replace the worn components in a unified manner, such as impellers, nozzles, lining plates, bearings, chains, and filter bags. Check the strength and wear of the equipment structure; repair the deformed or worn parts by welding or reinforcing. Calibrate the entire control system, including sensors, actuators, and PLC controllers, to ensure the accuracy and reliability of the control system. After the overhaul is completed, conduct a test run of the equipment, adjust the process parameters, and ensure that the equipment is working normally.
Fault maintenance: When the equipment fails during operation, the operator should immediately stop the equipment and notify the professional maintenance personnel to handle it. The maintenance personnel should first understand the fault phenomenon and check the fault according to the fault prompt of the control system. Common faults of the Large Industrial-grade Shot Blasting Machine include: shot blaster not working, uneven shot blasting effect, blockage of the abrasive pipeline, abnormal operation of the dust removal system, and failure of the control system. For each fault, the maintenance personnel should find out the cause, take corresponding repair measures, and test the equipment after the repair to ensure that the fault is eliminated. After the fault is handled, the maintenance personnel should record the fault phenomenon, cause, and repair process in the fault maintenance record book for future reference.
Safety Management
The safety management of the Large Industrial-grade Shot Blasting Machine is an important part of the enterprise's safety production management. It is related to the personal safety of operators and the normal operation of the production process. The safety management mainly includes safety training, safety operation regulations, safety inspection, and accident handling.
Safety training: Enterprises must conduct professional safety training for operators and maintenance personnel of the Large Industrial-grade Shot Blasting Machine. The training content includes the structure and working principle of the equipment, safety operation regulations, safety protection measures, fault diagnosis and handling methods, and emergency response plans. Operators and maintenance personnel must pass the assessment before taking up the post, and it is strictly forbidden for untrained personnel to operate or maintain the equipment without authorization. Enterprises should also conduct regular re-training to update the safety knowledge and skills of relevant personnel.
Safety operation regulations: Enterprises should formulate detailed and strict safety operation regulations for the Large Industrial-grade Shot Blasting Machine, and require operators to strictly abide by them. The main contents of the safety operation regulations include: Operators must wear personal protective equipment (safety helmet, safety glasses, dust mask, protective gloves, protective clothing) during operation. It is strictly forbidden to open the chamber door during the operation of the equipment; it is strictly forbidden to put hands or other parts of the body into the blasting chamber or the conveying system. Before starting the equipment, check the safety protection devices (interlock device, emergency stop button, safety guard) to ensure that they are in good condition. It is strictly forbidden to overload the equipment or process workpieces that exceed the specified size. During the operation, pay attention to the operation status of the equipment; if abnormal phenomena (such as abnormal noise, vibration, overheating) are found, stop the equipment immediately and report to the relevant personnel. It is strictly forbidden to repair the equipment while it is running; after the equipment stops, the power supply must be cut off and the "no operation" sign must be hung before maintenance. After the operation, clean the equipment and the working environment, and turn off the power supply and relevant valves.
Safety inspection: Enterprises should establish a regular safety inspection system for the Large Industrial-grade Shot Blasting Machine. The safety inspection includes daily safety inspection (conducted by operators), weekly safety inspection (conducted by workshop safety personnel), and monthly safety inspection (conducted by enterprise safety management personnel). The inspection content includes the working status of the safety protection devices, the integrity of the electrical system, the tightness of the equipment seals, the working status of the dust removal system, and the compliance of operators' operations. For the potential safety hazards found in the inspection, a rectification list should be formulated, and the responsible person and rectification time limit should be clarified. The rectification situation should be tracked and verified to ensure that the potential safety hazards are eliminated in time.
