Shot Blasting Machine with Automatic Shot Recycling

Shot blasting technology is an important surface treatment technology in the manufacturing industry, which is widely used in the cleaning, strengthening, and finishing of workpieces. The Shot Blasting Machine with Automatic Shot Recycling is a kind of shot blasting equipment that integrates shot blasting cleaning and automatic shot recycling. It can automatically collect, separate, and reuse the shot material after shot blasting, which not only improves the utilization rate of the shot material, reduces the production cost, but also improves the production efficiency and reduces the labor intensity of the operators. This article will comprehensively introduce the Shot Blasting Machine with Automatic Shot Recycling from the aspects of working principle, structural composition, core advantages, application scenarios, technical parameters, installation and commissioning, and daily maintenance, to show its important role and application value in the manufacturing industry.

The working principle of the Shot Blasting Machine with Automatic Shot Recycling is based on the combination of mechanical shot blasting and automatic shot material recovery and reuse. The whole working process can be divided into two main stages: shot blasting cleaning and automatic shot recycling. In the shot blasting cleaning stage, the impeller head of the shot blasting machine accelerates the shot material to a high speed and projects it onto the surface of the workpiece. Under the action of the impact force of the shot material, the oxides, rust, oil stains, and other impurities on the surface of the workpiece are peeled off, and the surface of the workpiece is formed into a certain roughness, which meets the requirements of subsequent processing. During the shot blasting process, the shot material will collide with the workpiece and the inner wall of the shot blasting chamber, resulting in some shot material being broken. Therefore, after the shot blasting, the mixture in the shot blasting chamber includes usable shot material, broken shot material, and impurities such as oxide layer peeled off from the workpiece surface.

The automatic shot recycling stage is the core part of the Shot Blasting Machine with Automatic Shot Recycling. Its main task is to separate the usable shot material from the mixture of shot material, broken shot, and impurities, and recycle it to the impeller head for reuse. The automatic shot recycling system usually consists of a collection device, a transportation device, a separation device, and a storage device. The collection device is usually located at the bottom of the shot blasting chamber, which is used to collect the mixture after shot blasting. The common collection devices include a hopper-type collection device and a screw-type collection device. The hopper-type collection device collects the mixture into the hopper through the gravity of the mixture, and the screw-type collection device transports the mixture to the next link through the rotation of the screw. The transportation device is used to transport the collected mixture to the separation device. The common transportation devices include bucket elevators and belt conveyors. The bucket elevator lifts the mixture to a certain height through the buckets installed on the chain, and then transports it to the separation device. The belt conveyor transports the mixture to the separation device through the movement of the conveyor belt. The separation device is the key component of the automatic shot recycling system, which is used to separate the usable shot material from the mixture. The common separation devices include air separators, magnetic separators, and screen separators. The air separator uses the difference in specific gravity between the usable shot material, broken shot, and impurities to separate them through the action of air flow. The magnetic separator is mainly used for separating ferrous shot materials. It uses the magnetic force to attract the ferrous shot materials, so as to separate them from non-ferrous impurities. The screen separator uses the difference in particle size between the usable shot material and the broken shot and impurities to separate them through the screen. After separation, the usable shot material is sent to the storage device (such as a shot silo) for storage, and then is transported to the impeller head through the feeding device for reuse. The broken shot and impurities are discharged from the system through the discharge device.

The structural composition of the Shot Blasting Machine with Automatic Shot Recycling is mainly composed of shot blasting chamber, impeller head, automatic shot recycling system, electrical control system, and other components. The shot blasting chamber is the place where the workpiece is cleaned, and its inner wall is lined with wear-resistant materials to prevent wear. The size and shape of the shot blasting chamber can be designed according to the size and type of the workpiece. The impeller head is the core component of the shot blasting machine, which is responsible for accelerating the shot material. The performance of the impeller head directly affects the shot blasting efficiency and the cleaning effect of the workpiece. The automatic shot recycling system is the key part that distinguishes this machine from other shot blasting machines, which includes collection device, transportation device, separation device, storage device, and feeding device. The electrical control system adopts PLC control, which can realize the automatic control of the whole machine, such as automatic start and stop, automatic adjustment of shot blasting parameters, automatic operation of the shot recycling system, etc. The man-machine interface of the electrical control system is friendly, which is convenient for operators to operate and monitor the equipment.

The Shot Blasting Machine with Automatic Shot Recycling has many core advantages. First of all, it can improve the utilization rate of shot material and reduce production cost. The traditional shot blasting machine usually requires manual collection and sorting of shot material, which not only has low efficiency but also causes a lot of waste of shot material. The automatic shot recycling system of this machine can automatically collect and separate the shot material, and the utilization rate of shot material can reach more than 95%, which greatly reduces the consumption of shot material and the production cost. Secondly, it can improve production efficiency. The automatic shot recycling system can work continuously, without the need for manual intervention, which saves the time of manual collection and sorting of shot material, and improves the overall production efficiency of the shot blasting process. Thirdly, it can reduce the labor intensity of operators. The traditional shot blasting machine requires operators to manually collect, sort and transport shot material, which is labor-intensive and has high work intensity. The automatic shot recycling system realizes the automation of the whole process of shot material recycling, which reduces the labor intensity of operators and improves the working environment. Fourthly, it can ensure the stability of the shot blasting effect. The automatic shot recycling system can accurately separate the usable shot material, ensure that the particle size and quality of the shot material used in each shot blasting process are consistent, thus ensuring the stability of the shot blasting effect of the workpiece. In addition, the machine has the advantages of compact structure, small floor area, and easy operation.

The Shot Blasting Machine with Automatic Shot Recycling is widely used in various fields of the manufacturing industry, such as casting industry, forging industry, automobile manufacturing industry, construction machinery industry, steel industry, and so on. In the casting industry, it is used to clean the surface of castings, remove the sand, oxide layer, and other impurities on the surface of castings. The automatic shot recycling system can effectively collect the shot material and sand mixture, separate the usable shot material, and reuse it, which not only reduces the cost but also improves the cleaning efficiency of castings. In the forging industry, it is used to clean the surface of forgings, remove the oxide scale and burrs on the surface of forgings, and improve the surface quality of forgings. The automatic shot recycling system can ensure the continuous supply of shot material, which is conducive to the continuous production of forgings. In the automobile manufacturing industry, it is used to clean the surface of auto parts, such as engine blocks, gearboxes, wheels, etc. The stable shot blasting effect and automatic shot recycling function of the machine can ensure the quality of auto parts and improve the production efficiency of the automobile manufacturing line. In the construction machinery industry, it is used to clean the surface of construction machinery components, such as excavator arms, crane booms, etc., to enhance the anti-corrosion performance and service life of the components. In the steel industry, it is used to clean the surface of steel plates, steel pipes, and other steel products, remove the oxide scale on the surface, and improve the surface quality of steel products, which is conducive to the subsequent processing and sales of steel products.

The technical parameters of the Shot Blasting Machine with Automatic Shot Recycling vary according to the model and application requirements of the machine. The main technical parameters include shot blasting capacity, impeller speed, shot diameter, processing workpiece size, power consumption, and so on. The shot blasting capacity refers to the amount of shot material projected by the impeller head per unit time, which directly affects the shot blasting efficiency. The impeller speed affects the projection speed of the shot material, and then affects the impact force of the shot material on the workpiece. The shot diameter is selected according to the material and surface requirements of the workpiece. For example, for workpieces with high surface roughness requirements, small-diameter shot materials are usually used; for workpieces that need to be strengthened, large-diameter shot materials are usually used. The processing workpiece size determines the size of the shot blasting chamber and the overall structure of the machine. When selecting the Shot Blasting Machine with Automatic Shot Recycling, users should select the appropriate model and technical parameters according to their own processing needs.

The installation and commissioning of the Shot Blasting Machine with Automatic Shot Recycling is an important link to ensure the normal operation and performance of the machine. Before installation, it is necessary to make preparations, including checking the equipment and accessories, preparing the installation tools and materials, and checking whether the foundation meets the requirements. During installation, the machine should be positioned and fixed according to the installation drawing. First, install the shot blasting chamber, then install the impeller head, automatic shot recycling system, electrical control system, and other components. When installing the automatic shot recycling system, it is necessary to ensure the connection between the collection device, transportation device, separation device, and storage device is smooth, so as to avoid material blockage. After the installation of the whole machine, the commissioning work should be carried out. The commissioning work mainly includes no-load commissioning and load commissioning. In the no-load commissioning, it is necessary to check whether each component of the machine is running normally, whether there is abnormal noise, and whether the electrical control system is sensitive and reliable. In the load commissioning, it is necessary to use actual workpieces for shot blasting test, check the shot blasting effect of the workpieces, the operation status of the automatic shot recycling system, and whether the shot material utilization rate meets the requirements. If any problems are found during the commissioning process, they should be adjusted and handled in time.

Daily maintenance of the Shot Blasting Machine with Automatic Shot Recycling is essential to extend the service life of the equipment and ensure its stable operation. The daily maintenance work mainly includes the following aspects: First, regular inspection of the impeller head. The impeller, blade, directional sleeve, distribution wheel, and other components of the impeller head are vulnerable parts. It is necessary to regularly check their wear status and replace them in time if they are worn seriously. Second, regular inspection and maintenance of the automatic shot recycling system. It is necessary to check whether the collection device is blocked, whether the transportation device (such as bucket elevator, belt conveyor) is running normally, whether the chain and sprocket are worn, and whether the separation device is working normally. At the same time, it is necessary to regularly clean the separation device and the storage device to prevent the accumulation of impurities from affecting the separation effect and the supply of shot material. Third, regular inspection of the electrical control system. It is necessary to check whether the electrical components are loose, whether the wires are damaged, and whether the PLC control system is running normally. If any faults are found, they should be handled in time. Fourth, regular lubrication of the equipment. It is necessary to regularly add lubricating oil to the moving parts of the equipment, such as the impeller head, bucket elevator, screw conveyor, etc., to reduce friction and wear. In addition, it is necessary to regularly clean the shot blasting chamber and remove the accumulated impurities and shot material in the chamber to ensure the normal operation of the machine.

With the continuous development of the manufacturing industry, the requirements for surface treatment technology are getting higher and higher. The Shot Blasting Machine with Automatic Shot Recycling, as a kind of efficient and economical surface treatment equipment, will be more and more widely used. In the future, with the integration of intelligent technology, the machine will realize more intelligent functions, such as automatic detection of shot material quality, automatic adjustment of shot blasting parameters, remote monitoring and maintenance, etc. At the same time, the machine will be further optimized in terms of energy saving and environmental protection, to meet the increasingly strict environmental protection requirements. The development of the Shot Blasting Machine with Automatic Shot Recycling will promote the progress of surface treatment technology and contribute to the high-quality development of the manufacturing industry.