A screening device for sandblasting abrasive recovery

Abstract

The invention discloses a screening device for sandblasting abrasive recovery, comprising a debris removal bin, a high-pressure storage bin and a screening box. The invention belongs to the technical field of sandblasting abrasive recovery. A built-in electromagnetic suction plate and an external electromagnetic suction plate can adsorb iron filings in the abrasive. At the same time, when the built-in electromagnetic suction plate and the external electromagnetic suction plate are intermittently energized, the iron filings on the surface of the conical support plate can be moved up and down to prevent the abrasive from being wrapped in the gathered iron filings. After the abrasive enters the high-pressure storage bin and water is injected into the bottom of the high-pressure storage bin, compressed air is input into the high-pressure storage bin by a booster air pump to increase the water pressure in the high-pressure storage bin. Under the action of the water pressure, the abrasive with cracks can be broken or the cracks can be enlarged, which is convenient for subsequent screening.

Description

Technical Field

[0001] The invention belongs to the technical field of sandblasting abrasive recovery, and in particular relates to a screening device for sandblasting abrasive recovery. Background Art

[0002] Sand blasting uses compressed air as the power to form a high-speed jet beam to spray abrasives onto the surface of the workpiece at high speed. The appearance or shape of the workpiece changes, so that the surface of the workpiece acquires different roughness, the mechanical properties are improved, the fatigue resistance of the workpiece is improved, the adhesion between the workpiece and the coating is increased, and the durability of the coating is extended.

[0003] Generally, in order to prevent dust during the sandblasting process, the ejected abrasive and workpiece iron chips need to be collected. However, the collected abrasive not only contains a large amount of iron chips, but also some of the abrasive has been broken. After recycling, it does not reach the size required for abrasive use, or some of the abrasive has cracks but is not completely broken. This part of the abrasive does not meet the quality requirements of the abrasive. Therefore, the recycled abrasive is often treated as waste, resulting in great waste. However, it is difficult to ensure the quality of the recycled abrasive, which is not conducive to subsequent use. Therefore, a screening device for sandblasting abrasive recovery is needed to solve the above problems. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a screening device for sandblasting abrasive recovery to solve the problems raised in the above background technology.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a screening device for sandblasting abrasive recovery, including a debris removal bin, a high-pressure storage bin and a screening box, an external electromagnetic suction plate is installed around the top outer wall of the debris removal bin, a conical support plate is arranged in the debris removal bin, a diversion bent plate is installed on the top wall of the conical support plate, the diversion bent plate is arranged around the conical support plate, a built-in electromagnetic suction plate is installed on the bottom wall of the conical support plate, the conical support plate is connected to the inner wall of the debris removal bin through a connecting column, and the bottom of the debris removal bin is connected to the inner wall of the debris removal bin through a connecting column. The first part is connected with one end of the Y-type diverter pipe, the bifurcated section of the Y-type diverter pipe faces downward, one end of the bifurcated section of the Y-type diverter pipe is connected to the high-pressure storage bin, a booster air pump is installed on the top wall of the high-pressure storage bin, a screening leak plate is installed in the screening box, a plurality of isolation plates are fixedly connected to the screening leak plate, a side wall at one end of the isolation plate is connected to the inner wall of the screening box, a side wall at the other end of the isolation plate is fitted with the side wall of the movable blocking plate, a plurality of through holes are provided on the screening leak plate, and there is no through hole at the screening leak plate below the isolation plate.

[0006] As a preferred technical solution of the present invention, a feed pipe is installed at the top of the impurity removal bin, support frames are installed on both sides of the impurity removal bin, a discharge control valve is installed at the connection between the high-pressure storage bin and the Y-shaped diverter pipe, and a liquid inlet valve is installed in the middle position of the side wall of the high-pressure storage bin, and the liquid inlet valve is connected to one end of the liquid inlet pipe.

[0007] As a preferred technical solution of the present invention, a shutoff plate is rotatably connected inside the Y-shaped diverter tube. The shutoff plate is located at the bifurcation of the Y-shaped diverter tube. One end of the shutoff plate is rotatably connected to a shutoff motor via a rotating shaft. The shutoff motor is installed on the outer wall of the Y-shaped diverter tube.

[0008] As a preferred technical solution of the present invention, the bottom position of the side wall of the high-pressure storage bin is connected to one end of the discharge channel, the other end of the discharge channel is connected to the delivery pump, and the high-pressure storage bin is fixed on the top wall of the support platform.

[0009] As a preferred technical solution of the present invention, the conveying pump is connected to one end of the discharge pipe, and the other end of the discharge pipe is connected to the horizontal pipe. The horizontal pipe is arranged horizontally, and multiple groups of material pipes are installed at the bottom of the horizontal pipe, and the distribution pipes are arranged perpendicular to the horizontal pipe.

[0010] As a preferred technical solution of the present invention, the movable blocking plate is arranged perpendicular to the isolation plate, and both sides of the movable blocking plate are in contact with the inner wall of the screening box. The isolation plate is located below the distribution pipe, and the distribution pipe is arranged opposite to the gap between the isolation plates.

[0011] As a preferred technical solution of the present invention, the top of the movable baffle plate is connected to the bottom end of the cylinder, the top of the cylinder is fixed on the top bottom wall of the mounting frame, the mounting frame is fixedly connected to the top of the screening box, and a plurality of groups of water leakage holes are provided on the movable baffle plate.

[0012] As a preferred technical solution of the present invention, connecting plates are installed on the outer walls of both sides of the screening box, and guide rods are fixedly connected to the connecting plates. The guide rods are arranged horizontally, and both ends of the guide rods pass through the supporting legs. The guide rods are slidably connected to the supporting legs. A spring is mounted on the guide rods, and both ends of the springs are fixedly connected to the connecting plates and the supporting legs respectively.

[0013] As a preferred technical solution of the present invention, a motor platform is provided under the screening plate, the motor platform is fixed on the inner wall of the screening box, a driving motor is provided on the motor platform, the driving motor has two output ends, the output end of the driving motor is connected to one end of the driving shaft, the other end of the driving shaft is connected to the inner wall of the screening box, and a cam is installed on the driving shaft.

[0014] The beneficial effects of a screening device for sandblasting abrasive recovery proposed by the present invention are as follows:

[0015] (1) The built-in electromagnetic suction plate and the external electromagnetic suction plate can absorb the iron filings in the abrasive. At the same time, when the built-in electromagnetic suction plate and the external electromagnetic suction plate are intermittently energized, the iron filings on the surface of the conical support plate can be moved up and down to prevent the abrasive from being wrapped in the accumulated iron filings.

[0016] (2) After the abrasive enters the high-pressure storage bin, water is injected into the bottom of the bin. Compressed air is input into the bin using a booster air pump to increase the water pressure in the bin. Under the action of the water pressure, the cracked abrasive is broken or the cracks are enlarged, which is convenient for subsequent screening.

[0017] (3) After high-pressure cracking, the abrasive with enlarged cracks can break itself to the maximum extent after hitting the isolation plate, and the complete abrasive can be screened out when the subsequent abrasive passes through the screening plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a screening device for sandblasting abrasive recovery proposed by the present invention;

[0019] Figure 2 A top view of a screening device for sandblasting abrasive recovery proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the overall structure of the impurity removal bin and the high-pressure storage bin proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the overall structure of the impurity removal bin proposed by the present invention;

[0022] Figure 5 A cross-sectional view of the impurity removal bin proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the overall structure of the screening box proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the internal structure of the screening box proposed in the present invention.

[0025] Among them, 1. De-waxing bin, 101. External electromagnetic suction plate, 102. Feed pipe, 103. Conical support plate, 104. Diverter bend plate, 105. Internal electromagnetic suction plate, 106. Connecting column, 107. Y-type diverter pipe, 108. Cut-off plate, 109. Cut-off motor, 110. Support frame, 2. High-pressure storage bin, 201. Booster air pump, 202. Liquid inlet valve, 203. Liquid inlet pipe, 204. Unloading control valve, 205. Discharge channel, 206 , conveying pump, 207, discharge pipe, 208, horizontal pipe, 209, distribution pipe, 210, support table, 3, screening box, 301, isolation plate, 302, mounting frame, 303, cylinder, 304, movable blocking plate, 305, leakage hole, 306, screening leakage plate, 307, connecting plate, 308, guide rod, 309, support leg, 310, spring, 311, motor platform, 312, drive motor, 313, drive shaft, 314, cam.

[0026] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] As a new embodiment of the present invention, Figure 1-Figure 7As shown, the present invention proposes a screening device for sandblasting abrasive recovery, comprising a de-dusting bin 1, a high-pressure storage bin 2 and a screening box 3, an external electromagnetic suction plate 101 is installed around the top outer wall of the de-dusting bin 1, a conical support plate 103 is arranged in the de-dusting bin 1, a diversion bent plate 104 is installed on the top wall of the conical support plate 103, the diversion bent plate 104 is arranged around the conical support plate 103, a built-in electromagnetic suction plate 105 is installed on the bottom wall of the conical support plate 103, the conical support plate 103 is connected to the inner wall of the de-dusting bin 1 through a connecting column 106, and the bottom of the de-dusting bin 1 is connected to the Y-shaped diversion pipe 106. 07, the bifurcated section of the Y-type shunt pipe 107 faces downward, one end of the bifurcated section of the Y-type shunt pipe 107 is connected to the high-pressure storage bin 2, a booster air pump 201 is installed on the top wall of the high-pressure storage bin 2, a screening leak plate 306 is installed in the screening box 3, a plurality of groups of isolation plates 301 are fixedly connected to the screening leak plate 306, one end side wall of the isolation plate 301 is connected to the inner wall of the screening box 3, the other end side wall of the isolation plate 301 is fitted with the side wall of the movable blocking plate 304, the screening leak plate 306 has a plurality of through holes, and the screening leak plate 306 below the isolation plate 301 has no through holes.

[0029] like Figure 3 and Figure 4 As shown, a feed pipe 102 is installed at the top of the impurity removal bin 1, support frames 110 are installed on both sides of the impurity removal bin 1, a feed control valve 204 is installed at the connection between the high-pressure storage bin 2 and the Y-shaped shunt pipe 107, and a liquid inlet valve 202 is installed in the middle position of the side wall of the high-pressure storage bin 2, and the liquid inlet valve 202 is connected to one end of the liquid inlet pipe 203.

[0030] like Figure 4 and Figure 5 As shown, a shutoff plate 108 is rotatably connected inside the Y-shaped shunt tube 107. The shutoff plate 108 is located at the bifurcation of the Y-shaped shunt tube 107. One end of the shutoff plate 108 is rotatably connected to a shutoff motor 109 via a rotating shaft. The shutoff motor 109 is installed on the outer wall of the Y-shaped shunt tube 107.

[0031] like Figure 1 and Figure 3 As shown, the bottom position of the side wall of the high-pressure storage bin 2 is connected to one end of the discharge pipe 207 , and the other end of the discharge pipe 207 is connected to the delivery pump 206 . The high-pressure storage bin 2 is fixed on the top wall of the support platform 210 .

[0032] like Figure 3 As shown, the delivery pump 206 is connected to one end of the discharge pipe 207, and the other end of the discharge pipe 207 is connected to the horizontal pipe 208. The horizontal pipe 208 is arranged horizontally, and multiple groups of feeding pipes 209 are installed at the bottom of the horizontal pipe 208. The feeding pipes 209 are arranged perpendicular to the horizontal pipe 208.

[0033] like Figure 2and Figure 6 As shown, the movable blocking plate 304 is arranged perpendicular to the isolation plate 301 , and both sides of the movable blocking plate 304 are in contact with the inner wall of the screening box 3 . The isolation plate 301 is located below the distribution pipe 209 , and the distribution pipe 209 is arranged opposite to the gap between the isolation plates 301 .

[0034] like Figure 6 and Figure 7 As shown, the top of the movable blocking plate 304 is connected to the bottom end of the cylinder 303, the top of the cylinder 303 is fixed on the top bottom wall of the mounting frame 302, the mounting frame 302 is fixedly connected to the top of the screening box 3, and a plurality of groups of water leakage holes 305 are provided on the movable blocking plate 304.

[0035] like Figure 6 and Figure 7 As shown, connecting plates 307 are installed on the outer walls of both sides of the screening box 3, and guide rods 308 are fixedly connected to the connecting plates 307. The guide rods 308 are arranged horizontally, and both ends of the guide rods 308 pass through the supporting legs 309. The guide rods 308 maintain a sliding connection with the supporting legs 309. A spring 310 is mounted on the guide rods 308, and both ends of the spring 310 are fixedly connected to the connecting plates 307 and the supporting legs 309 respectively.

[0036] like Figure 7 As shown, a motor platform 311 is provided below the screening plate 306, and the motor platform 311 is fixed on the inner wall of the screening box 3. A driving motor 312 is provided on the motor platform 311. The driving motor 312 has two output ends. The output end of the driving motor 312 is connected to one end of a driving shaft 313, and the other end of the driving shaft 313 is connected to the inner wall of the screening box 3. A cam 314 is installed on the driving shaft 313.

[0037] When in use, the user transports the collected abrasive into the impurity removal bin 1. After the abrasive falls on the conical support plate 103, it begins to flow downward along the surface of the conical support plate 103. First, the built-in electromagnetic suction plate 105 is powered on to adsorb the iron filings in the abrasive onto the surface of the conical support plate 103. Then, the built-in electromagnetic suction plate 105 is powered off, and the external electromagnetic suction plate 101 is powered on to adsorb the iron filings on the surface of the conical support plate 103, so that the accumulated iron filings move upward. At this time, the abrasive wrapped in the iron filings can break away from the conical support plate 103 and continue to flow downward. By repeating this process, the iron filings and the abrasive can be completely separated to the greatest extent. In addition, the surface of the conical support plate 103 has multiple flow separations. The bent plate 104 can increase the moving distance of the abrasive, so that the abrasive and iron filings are separated more thoroughly; after the iron filings in the abrasive are separated, the abrasive falls into the Y-shaped shunt pipe 107, and at this time, the intercepting plate 108 rotates toward the side away from the high-pressure storage bin 2, and the abrasive falls into the high-pressure storage bin 2. After the abrasive completely enters the high-pressure storage bin 2, the intercepting plate 108 is rotated in the opposite direction again, the built-in electromagnetic suction plate 105 and the external electromagnetic suction plate 101 are powered off, and the iron filings fall into the Y-shaped shunt pipe 107, and the iron filings can be collected; then open the liquid inlet valve 202, and supply water to the high-pressure storage bin 2 through the liquid inlet pipe 203, so that the liquid level in the high-pressure storage bin 2 is lower than the liquid inlet valve 202, and then close the liquid inlet valve 202, start The booster air pump 201 is started to input compressed air into the high-pressure storage bin 2 to increase the water pressure in the high-pressure storage bin 2. Under the action of the water pressure, the abrasive that has cracks will be broken or the cracks will be enlarged. Then the delivery pump 206 is started to deliver the abrasive and water in the high-pressure storage bin 2 into the screening box 3 through the discharge pipe 207. The abrasive and water fall between the isolation plates 301 in the screening box 3. The water between the isolation plates 301 can flow out through the leaking holes 305, and then fall to the bottom of the screening box 3 through the screening leaking plates 306. It can be collected in a container. Then the drive motor 312 is started to drive the cam 314 on the drive shaft 313 to rotate. The cam 314 drives the screening box 3 to shake. During the shaking process of the sub-box 3, the abrasive between the isolation plates 301 will collide with the isolation plates 301, the movable blocking plates 304 and the inner wall of the screening box 3. At this time, the abrasive with enlarged cracks after high-pressure cracking can break itself to the maximum extent after being hit. Then the cylinder 303 is controlled to contract, driving the movable blocking plate 304 to rise, and the abrasive between the isolation plates 301 moves to the screening leak plate 306. The broken abrasive falls under the screening leak plate 306 due to its small size, while the abrasive that meets the size requirements and is of good quality can continue to move along the screening leak plate 306 and be collected in a container. The above is the overall workflow of the present invention, and this step can be repeated the next time it is used.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0040] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A screening device for sandblasting abrasive recovery, comprising a dust removal bin (1), a high-pressure storage bin (2) and a screening box (3), wherein an external electromagnetic suction plate (101) is mounted around the top outer wall of the dust removal bin (1), a conical support plate (103) is arranged inside the dust removal bin (1), a diversion bent plate (104) is mounted on the top wall of the conical support plate (103), and the diversion bent plate (104) is arranged around the conical support plate (103), characterized in that: A built-in electromagnetic suction plate (105) is installed on the bottom wall of the conical support plate (103); the conical support plate (103) is connected to the inner wall of the impurity removal bin (1) via a connecting column (106); the bottom of the impurity removal bin (1) is connected to one end of a Y-shaped flow diversion pipe (107); the bifurcated section of the Y-shaped flow diversion pipe (107) faces downward; one end of the bifurcated section of the Y-shaped flow diversion pipe (107) is connected to the high-pressure storage bin (2); and a booster air pump is installed on the top wall of the high-pressure storage bin (2). (201), a screening leak plate (306) is installed in the screening box (3), and a plurality of isolation plates (301) are fixedly connected to the screening leak plate (306), a side wall at one end of the isolation plate (301) is connected to the inner wall of the screening box (3), and a side wall at the other end of the isolation plate (301) is in contact with the side wall of the movable blocking plate (304), and a plurality of through holes are provided on the screening leak plate (306), and the screening leak plate (306) below the isolation plate (301) does not have a through hole.

2. A screening device for sandblasting abrasive recovery according to claim 1, characterized in that: A feed pipe (102) is installed at the top of the impurity removal bin (1), support frames (110) are installed on both sides of the impurity removal bin (1), a material discharge control valve (204) is installed at the connection between the high-pressure storage bin (2) and the Y-shaped diverter pipe (107), and a liquid inlet valve (202) is installed in the middle of the side wall of the high-pressure storage bin (2), and the liquid inlet valve (202) is connected to one end of the liquid inlet pipe (203).

3. A screening device for sandblasting abrasive recovery according to claim 2, characterized in that: A shutoff plate (108) is rotatably connected inside the Y-shaped flow diversion tube (107). The shutoff plate (108) is located at the bifurcation of the Y-shaped flow diversion tube (107). One end of the shutoff plate (108) is rotatably connected to a shutoff motor (109) via a rotating shaft. The shutoff motor (109) is mounted on the outer wall of the Y-shaped flow diversion tube (107).

4. A screening device for sandblasting abrasive recovery according to claim 3, characterized in that: The bottom of the side wall of the high-pressure storage bin (2) is connected to one end of a discharge channel (205), and the other end of the discharge channel (205) is connected to a delivery pump (206). The high-pressure storage bin (2) is fixed on the top wall of the support platform (210).

5. A screening device for sandblasting abrasive recovery according to claim 4, characterized in that: The delivery pump (206) is connected to one end of a discharge pipe (207), and the other end of the discharge pipe (207) is connected to a transverse pipe (208). The transverse pipe (208) is arranged horizontally, and a plurality of groups of material pipes (209) are installed at the bottom of the transverse pipe (208). The material distribution pipes (209) are arranged perpendicular to the transverse pipe (208).

6. A screening device for sandblasting abrasive recovery according to claim 5, characterized in that: The movable blocking plate (304) is arranged perpendicular to the isolation plate (301), and two sides of the movable blocking plate (304) are in contact with the inner wall of the screening box (3). The isolation plate (301) is located below the material distribution pipe (209), and the material distribution pipe (209) is arranged opposite to the gap between the isolation plates (301).

7. A screening device for sandblasting abrasive recovery according to claim 6, characterized in that: The top end of the movable blocking plate (304) is connected to the bottom end of the cylinder (303), the top end of the cylinder (303) is fixed to the top bottom wall of the mounting frame (302), the mounting frame (302) is fixedly connected to the top of the screening box (3), and the movable blocking plate (304) is provided with a plurality of groups of water leakage holes (305).

8. A screening device for sandblasting abrasive recovery according to claim 7, characterized in that: Connecting plates (307) are installed on the outer walls of both sides of the screening box (3), and guide rods (308) are fixedly connected to the connecting plates (307). The guide rods (308) are arranged horizontally, and both ends of the guide rods (308) pass through the supporting legs (309). The guide rods (308) and the supporting legs (309) are slidably connected. A spring (310) is sleeved on the guide rods (308), and both ends of the spring (310) are fixedly connected to the connecting plates (307) and the supporting legs (309) respectively.

9. A screening device for sandblasting abrasive recovery according to claim 8, characterized in that: A motor platform (311) is provided below the screening plate (306), the motor platform (311) being fixed to the inner wall of the screening box (3), a drive motor (312) being provided on the motor platform (311), the drive motor (312) having two output ends, the output end of the drive motor (312) being connected to one end of a drive shaft (313), the other end of the drive shaft (313) being connected to the inner wall of the screening box (3), and a cam (314) being mounted on the drive shaft (313).

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