Collecting device for zinc oxide leaching residues

By introducing a vibration filtration and conveying collection mechanism into the zinc oxide leaching slag collection device, the problem of inconvenient screening of particles with uneven size is solved, and the inlet size is adjusted through a bidirectional threaded rod, which improves the collection efficiency and screening efficiency.

CN222901741UActive Publication Date: 2025-05-27GUANGXI HECHI XINYIN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202421712850.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-19
Publication Date
2025-05-27
Estimated Expiration
2034-07-19

AI Technical Summary

Technical Problem

The existing zinc oxide leaching slag collection device is inconvenient to treat uneven size particles when screening zinc oxide leaching slag particles, resulting in poor collection effect and fixed size of the inlet port, making it difficult to adjust as needed, resulting in low screening efficiency.

Method used

A collection device for zinc oxide leaching slag is designed, using a vibration filtering mechanism and a conveying and collection mechanism to realize the screening and classification of particles through a vibration filtering screen box, and the inlet size is adjusted through a bidirectional threaded rod.

Benefits of technology

It effectively solves the problem of poor collection effect caused by uneven particle size, improves screening efficiency, and optimizes the feeding process by adjusting the inlet port size, avoiding the problems of blockage and inefficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a zinc oxide leaching residue collecting device which comprises a working table, and a vibration filtering mechanism and a conveying and collecting mechanism are arranged on the working table. A plurality of T-shaped fixing blocks are fixedly connected to the top of the workbench, and sliding grooves are formed in the inner walls of the front side and the rear side of the workbench. According to the zinc oxide leaching residue collecting device, the vibration filtering mechanism is arranged, so that the problems that zinc oxide leaching residues with different sizes are inconvenient to screen, and the size of a feeding port of the collecting device is relatively fixed during collecting operation, so that the size of the feeding port is inconvenient to adjust according to working requirements, and the working efficiency is high are solved; and excessive zinc oxide leaching residues enter a collecting device at the same time, so that the screening speed of the subsequent zinc oxide leaching residues is low, and the screening efficiency of the collecting device is low.
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Description

Technical Field

[0001] The utility model belongs to the technical field of zinc oxide leaching residue, and particularly relates to a collecting device for zinc oxide leaching residue. Background Technique

[0002] In the production process of zinc oxide, a large amount of zinc oxide leaching residue will be generated. The zinc oxide leaching residue contains many zinc oxide leaching residue particles with uneven sizes. In order to avoid waste of resources, collecting devices are often used in production to recycle it.

[0003] However, during the daily zinc oxide collection operation of the existing collecting device, due to the inconvenience of screening zinc oxide leaching residues with different sizes, the sizes of the collected zinc oxide leaching residue particles are uneven, which affects the further treatment operation of the zinc oxide leaching residue, resulting in a poor collection effect of the collecting device. And during the collection operation, since the size of the feeding port of the collecting device is relatively fixed, it is inconvenient to adjust the size of the feeding port according to the needs of the work. When too much zinc oxide leaching residue enters the collecting device at the same time, the subsequent screening speed of the zinc oxide leaching residue is slow, and thus the screening efficiency of the collecting device is low. Content of the Utility Model

[0004] The purpose of the utility model is to provide a collecting device for zinc oxide leaching residue. By setting a vibration filtering mechanism, the problems that due to the inconvenience of screening zinc oxide leaching residues with different sizes, the sizes of the collected zinc oxide leaching residue particles are uneven, which affects the further treatment operation of the zinc oxide leaching residue, resulting in a poor collection effect of the collecting device, and during the collection operation, since the size of the feeding port of the collecting device is relatively fixed, it is inconvenient to adjust the size of the feeding port according to the needs of the work. When too much zinc oxide leaching residue enters the collecting device at the same time, the subsequent screening speed of the zinc oxide leaching residue is slow, and thus the screening efficiency of the collecting device is low are solved.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a collecting device for zinc oxide leaching residue, including a workbench, and a vibration filtering mechanism and a conveying and collecting mechanism are arranged on the workbench;

[0007] A plurality of T-shaped fixing blocks are fixedly connected to the top of the workbench, chutes are opened on the inner walls of the front side and the rear side of the workbench, the vibration filtering mechanism includes a vibration component and a filtering and screening component, the vibration component includes a plurality of telescopic rods fixedly connected to the tops of the plurality of T-shaped fixing blocks, and springs are sleeved on the outer walls of the plurality of telescopic rods, and the bottoms of the plurality of springs are fixedly connected to the tops of the T-shaped fixing blocks.

[0008] Further, on one side of the two T-shaped fixing blocks located on the left side, which are close to each other, there is a motor sleeve fixedly connected. Inside the inner wall of the motor sleeve, there is a first motor fixedly connected. The output shaft of the first motor is fixedly connected with a first rotating shaft. On the outer wall of the first rotating shaft, there is a reciprocating dial fixedly connected. On the outer wall of the first rotating shaft, there is a fixed sleeve sleeved. The fixed sleeve is fixedly connected with one side of the two T-shaped fixing blocks located on the left side, which are close to each other.

[0009] Further, the filtering and screening assembly includes a filtering and screening box fixedly connected to the tops of a number of telescopic rods. The bottom of the filtering and screening box is fixedly connected with the tops of a number of springs. The top of the filtering and screening box is fixedly connected with a feeding funnel.

[0010] Further, a filter plate is fixedly connected to the inner wall of the filtering and screening box. A bidirectional threaded rod is rotatably penetrated through the inner walls of the front side and the rear side of the filtering and screening box. A handle is fixedly connected to the front side extension of the bidirectional threaded rod.

[0011] Further, a limiting hole is fixedly connected to the rear side extension of the bidirectional threaded rod. Two baffles are threadedly connected to the outer wall of the bidirectional threaded rod. A fixed block is fixedly connected to the right side of the filtering and screening box. Slide rods are fixedly connected to the inner walls of the front side and the rear side of the filtering and screening box. The slide rods slidably penetrate through the two baffles.

[0012] Further, the conveying and collecting mechanism includes a collecting assembly and a conveying assembly. The collecting assembly includes a large chip collecting funnel communicated with the bottom of the filtering and screening box. A small chip collecting funnel is communicated with the bottom of the filtering and screening box. On one side close to each other of the two chutes, two sliders are slidably connected. The two sliders are respectively located on the left side and the right side. The slider located on the left side is adapted to the bottom of the small chip collecting funnel. The slider located on the right side is adapted to the bottom of the large chip collecting funnel. On the tops of the two sliders, there are motor fixing blocks fixedly connected. On the tops of the two motor fixing blocks, there are second motors fixedly connected. The output shafts of the two second motors are fixedly connected with second rotating shafts. On the outer walls of the two second rotating shafts, there are gears fixedly connected. A rack is fixedly connected to the top rear side of the workbench. The two gears and the rack are meshed with each other.

[0013] Further, the conveying assembly includes a motor fixing sleeve fixedly connected to the front side of the workbench. Inside the inner wall of the motor fixing sleeve, there is a third motor fixedly connected. The output shaft of the third motor is fixedly connected with a third rotating shaft.

[0014] Further, a conveyor belt is sleeved on the outer wall of the third rotating shaft. A first collecting box is slidably connected to the bottom right side of the workbench. A second collecting box is slidably connected to the bottom left side of the workbench.

[0015] The utility model has the following beneficial effects:

[0016] 1. By setting up a vibration component, when in use, pour the zinc oxide leaching residue debris into the feed hopper, turn the handle fixedly connected to the front extension of the bidirectional threaded rod. By turning the handle, the two baffles threadedly connected to the outer wall of the bidirectional threaded rod are opened, enabling the zinc oxide leaching residue debris to enter the filtration and screening box. At this time, turn on Motor 1, which drives the reciprocating paddle fixedly connected to the outer wall of the first rotating shaft to rotate. The reciprocating paddle rotates to collide with the fixed block fixedly connected to the right side of the filtration and screening box. With the mutual cooperation of the telescopic rod and the spring, the vibration of the filtration and screening box is realized. On the one hand, it can effectively prevent the leaching residue from accumulating or blocking on the filter plate, ensuring the continuity of the feeding and discharging processes. On the other hand, it can eliminate the adhesion phenomenon where the leaching residue may sometimes agglomerate or adhere to the filter plate due to humidity or chemical composition reasons, ensuring the normal operation of the device;

[0017] 2. By setting up a filtration and screening component, when the filter plate in the filtration and screening box vibrates along with the filtration and screening box, at this time, the smaller zinc oxide leaching residue debris will fall through the filter plate into the small debris collection funnel connected to the bottom of the filtration and screening box, while the larger zinc oxide leaching residue debris will slide along the filter plate into the large debris collection funnel connected to the bottom of the filtration and screening box through vibration. On the one hand, it can quickly separate the leaching residue debris of different sizes, making the efficiency of the entire collection process more efficient. On the other hand, classifying the leaching residue according to particle size provides convenience for subsequent separate treatment and utilization, improving the efficiency of enterprise production. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the partial sectional structural schematic diagram of the present utility model;

[0020] Figure 3 is the partial structural schematic diagram of the present utility model;

[0021] Figure 4 is the partial structural schematic diagram of the present utility model;

[0022] Figure 5 is the partial structural schematic diagram of the present utility model;

[0023] Figure 6 is the partial sectional structural schematic diagram of the present utility model;

[0024] Figure 7 is the present utility model Figure 5 the enlarged structural schematic diagram of A therein;

[0025] Figure 8 For the present utility model Figure 4 Schematic enlarged structure diagram of B in it;

[0026] Figure 9 For the present utility model Figure 6 Schematic enlarged structure diagram of C in it;

[0027] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0028] Workbench; 101, T-shaped fixing block; 102, sliding groove; 2, vibration filtering mechanism; 21, vibration assembly; 211, telescopic rod; 212, spring; 213, motor sleeve; 214, motor 1; 215, rotating shaft 1; 216, reciprocating paddle; 217, fixed sleeve; 22, filtering and screening assembly; 221, filtering and screening box; 222, feeding funnel; 223, filter plate; 224, bidirectional threaded rod; 225, handle; 226, limiting column; 227, baffle; 228, fixing block; 229, sliding rod; 3, conveying and collecting mechanism; 31, collecting assembly; 311, large chip collecting funnel; 312, small chip collecting funnel; 313, slider; 314, motor fixing block; 315, motor 2; 316, rotating shaft 2; 317, gear; 318, rack; 32, conveying assembly; 321, motor fixing sleeve; 322, motor 3; 323, rotating shaft 3; 324, conveyor belt; 325, collecting box 1; 326, collecting box 2. Specific embodiments

[0029] The present utility model will be described below in conjunction with the attached drawings and embodiments. The following embodiments are explained with the optimal effects of the utility model. Embodiment

[0030] As Figure 1 , a collecting device for zinc oxide leaching residue includes a workbench 1, and a vibration filtering mechanism 2 and a conveying and collecting mechanism 3 are arranged on the workbench 1;

[0031] A plurality of T-shaped fixing blocks 101 are fixedly connected to the top of the workbench 1, sliding grooves 102 are opened on the inner walls of the front side and the rear side of the workbench 1. The vibration filtering mechanism 2 includes a vibration assembly 21 and a filtering and screening assembly 22. The vibration assembly 21 includes a plurality of telescopic rods 211 fixedly connected to the tops of a plurality of T-shaped fixing blocks 101. Springs 212 are sleeved on the outer walls of the plurality of telescopic rods 211, and the bottoms of the plurality of springs 212 are fixedly connected to the tops of the T-shaped fixing blocks 101.

[0032] Among them, as Figure 7As shown in the figure, on the side of the two T-shaped fixing blocks 101 located on the left that are close to each other, there is a motor sleeve 213 fixedly connected. Inside the inner wall of the motor sleeve 213, there is a first motor 214 fixedly connected. The output shaft of the first motor 214 is fixedly connected with a first rotating shaft 215. On the outer wall of the first rotating shaft 215, there is a reciprocating dial 216 fixedly connected. A fixed sleeve 217 is sleeved on the outer wall of the first rotating shaft 215, and the fixed sleeve 217 is fixedly connected with the side of the two T-shaped fixing blocks 101 located on the left that are close to each other.

[0033] By setting the filtering and screening assembly 22, the debris can vibrate under the mutual cooperation of the telescopic rods 211 and the springs 212. Furthermore, the filter plate 223 in the filtering and screening box 221 also vibrates along with the filtering and screening box 221. The continuous vibration can prevent the debris from blocking on the screen.

[0034] Among them, as Figure 1 shown, the filtering and screening assembly 22 includes a filtering and screening box 221 fixedly connected to the tops of several telescopic rods 211. The bottom of the filtering and screening box 221 is fixedly connected to the tops of several springs 212. A feeding funnel 222 is fixedly connected to the top of the filtering and screening box 221.

[0035] By setting the filter plate 223, the leaching residue debris of different sizes can be effectively screened through the filter plate, improving the production efficiency of the enterprise.

[0036] Among them, as Figure 9 shown, a filter plate 223 is fixedly connected to the inner wall of the filtering and screening box 221. A bidirectional threaded rod 224 rotatably penetrates through the front and rear inner walls of the filtering and screening box 221. A handle 225 is fixedly connected to the front extension of the bidirectional threaded rod 224.

[0037] By setting the bidirectional threaded rod 224, the operator can reasonably adjust the size of the feeding port according to the production needs, avoiding the situation where too much leaching residue debris accumulates at the feeding port and causes blockage.

[0038] Among them, as Figure 9 shown, a limiting hole 226 is fixedly connected to the rear extension of the bidirectional threaded rod 224. Two baffles 227 are threadedly connected to the outer wall of the bidirectional threaded rod 224. A fixed block 228 is fixedly connected to the right side of the filtering and screening box 221. Slide rods 229 are fixedly connected to the front and rear inner walls of the filtering and screening box 221, and the slide rods 229 slidably penetrate through the two baffles 227.

[0039] By setting up the conveying and collecting mechanism 3, the larger leached slag debris falling into the large-chip collection funnel 311 falls onto the conveyor belt 324 below. At this time, the conveyor belt 324 mounted on the outer wall of the rotating shaft 323 is driven to move to the right by the motor 322, and then the larger leached slag debris is collected into the collection box 1 325, saving the investment of human and financial resources and other costs of the enterprise.

[0040] Among them Figure 8 As shown, the conveying and collecting mechanism 3 includes a collecting component 31 and a conveying component 32. The collecting component 31 includes a large chip collecting funnel 311 connected to the bottom of the filtering and screening box 221. The bottom of the filtering and screening box 221 is connected to a small chip collecting funnel 312. Two sliders 313 are slidably connected to the side of the two chutes 102 close to each other. The two sliders 313 are respectively located on the left and right sides of the chutes 102. The slider 313 on the left is adapted to the bottom of the small chip collecting funnel 312. The slider 313 on the right side is adapted to the bottom of the large chip collecting funnel 311, the tops of the two sliders 313 are fixedly connected with motor fixing blocks 314, the tops of the two motor fixing blocks 314 are fixedly connected with motor 2 315, the output shafts of the two motors 315 are fixedly connected with rotating shaft 2 316, the outer walls of the two rotating shafts 316 are fixedly connected with gears 317, and the top rear side of the workbench 1 is fixedly connected with a rack 318, and the two gears 317 and the rack 318 are meshed with each other.

[0041] By setting up the conveying component 32, the zinc oxide leaching slag debris falling into the small debris collection funnel 312 falls onto the conveyor belt 324 below. At this time, the motor three 322 fixedly connected to the inner wall of the motor fixing sleeve 321 is turned on, and the conveyor belt 324 sleeved on the outer wall of the rotating shaft three 323 is driven by the motor three 322 to move to the left, so that the smaller leaching slag debris falls into the collection box two 326, which can transport materials quickly and continuously, reduce the time and labor intensity of manual handling, and make the production process smoother and more efficient.

[0042] Among them Figure 6 As shown, the transmission assembly 32 includes a motor fixing sleeve 321 fixedly connected to the front side of the workbench 1, a motor 322 is fixedly connected to the inner wall of the motor fixing sleeve 321, and the output shaft of the motor 322 is fixedly connected to the rotating shaft 323.

[0043] By setting up a collection box 325, it is possible to achieve classified collection of leached residue fragments of different sizes, thereby improving the production efficiency of the enterprise.

[0044] Among them Figure 2 As shown, a conveyor belt 324 is sleeved on the outer wall of the rotating shaft 323, a collecting box 1 325 is slidably connected to the right bottom of the workbench 1, and a collecting box 2 326 is slidably connected to the left bottom of the workbench 1.

[0045] A specific application of this embodiment is as follows: When in use, first place the device in the corresponding position, pour the zinc oxide leaching residue debris into the feeding funnel 222, and rotate the handle 225 fixedly connected to the front extension of the bidirectional threaded rod 224. By rotating the handle 225, the two baffles 227 threadedly connected to the outer wall of the bidirectional threaded rod 224 are opened, enabling the zinc oxide leaching residue debris to enter the filtering and screening box 221. At this time, turn on the first motor 214, and drive the reciprocating paddle 216 fixedly connected to the outer wall of the first rotating shaft 215 to rotate through the first motor 214. The reciprocating paddle 216 rotates to collide with the fixed block 228 fixedly connected to the right side of the filtering and screening box 221. Under the mutual cooperation of the telescopic rod 211 and the spring 212, the vibration of the filtering and screening box 221 is realized. Furthermore, the filter plate 223 inside the filtering and screening box 221 also vibrates along with the filtering and screening box 221. At this time, the smaller zinc oxide leaching residue debris will fall through the filter plate 223 into the small debris collection funnel 312 connected to the bottom of the filtering and screening box 221, while the larger zinc oxide leaching residue debris will slide along the filter plate 223 into the large debris collection funnel 311 connected to the bottom of the filtering and screening box 221 through vibration. At this time, turn on the second motor 315 fixedly connected to the left slider 313, and drive the gear 317 fixedly connected to the outer wall of the second rotating shaft 316 to rotate through the rotation of the left second motor 315. The rack 318 fixedly connected to the rear side of the top of the workbench 1 meshes with the gear 317. At this time, the left slider 313 slidingly connected in the chute 102 starts to move, causing the zinc oxide leaching residue debris falling into the small debris collection funnel 312 to fall onto the conveyor belt 324 below. At this time, turn on the third motor 322 fixedly connected to the inner wall of the motor fixing sleeve 321, and drive the conveyor belt 324 sleeved on the outer wall of the third rotating shaft 323 to move leftward through the third motor 322, thereby collecting the smaller leaching residue debris into the second collection box 326. After the smaller leaching residue debris is collected, then turn on the second motor 315 provided on the right slider 313, and drive the gear 317 fixedly connected to the outer wall of the second rotating shaft 316 to rotate through the rotation of the right second motor 315. The rack 318 fixedly connected to the rear side of the top of the workbench 1 meshes with the gear 317. At this time, the right slider 313 slidingly connected in the chute 102 starts to move, causing the larger leaching residue debris falling into the large debris collection funnel 311 to fall onto the conveyor belt 324 below. At this time, drive the conveyor belt 324 sleeved on the outer wall of the third rotating shaft 323 to move rightward through the third motor 322, thereby collecting the larger leaching residue debris into the first collection box 325. On the one hand, the zinc oxide leaching residue debris of different sizes is screened, effectively improving the collection efficiency and realizing the classified collection of the leaching residue debris of different sizes. On the other hand, the baffle 227 threadedly connected to the outer wall of the bidirectional threaded rod 224 can enable the staff to adjust the size of the feeding port as needed, reasonably control the feeding speed, and more precisely control the feeding process.

[0046] Finally, it should be noted that: Obviously, the above embodiments are only examples given to clearly illustrate the present utility model, rather than limitations on the implementation. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. A collection device for zinc oxide leaching residue, comprising a workbench (1), characterized in that: The workbench (1) is provided with a vibration filtering mechanism (2) and a conveying and collecting mechanism (3); The top of the workbench (1) is fixedly connected to a plurality of T-shaped fixing blocks (101); the inner walls of the front and rear sides of the workbench (1) are provided with sliding grooves (102); the vibration filtering mechanism (2) comprises a vibration component (21) and a filtering and screening component (22); the vibration component (21) comprises a plurality of telescopic rods (211) fixedly connected to the tops of the plurality of T-shaped fixing blocks (101); springs (212) are sleeved on the outer walls of the plurality of telescopic rods (211); and the bottoms of the plurality of springs (212) are fixedly connected to the tops of the T-shaped fixing blocks (101).

2. A zinc oxide leaching slag collecting device according to claim 1, characterized in that: A motor sleeve (213) is fixedly connected to one side of the two T-shaped fixing blocks (101) located on the left side, which are close to each other; a motor 1 (214) is fixedly connected to the inner wall of the motor sleeve (213); a rotating shaft 1 (215) is fixedly connected to the output shaft of the motor 1 (214); a reciprocating paddle (216) is fixedly connected to the outer wall of the rotating shaft 1 (215); a fixing sleeve (217) is sleeved on the outer wall of the rotating shaft 1 (215); and the fixing sleeve (217) is fixedly connected to one side of the two T-shaped fixing blocks (101) located on the left side, which are close to each other.

3. A zinc oxide leaching slag collecting device according to claim 2, characterized in that: The filtering and screening assembly (22) comprises a filtering and screening box (221) fixedly connected to the tops of a plurality of telescopic rods (211), the bottom of the filtering and screening box (221) being fixedly connected to the tops of a plurality of springs (212), and the top of the filtering and screening box (221) being fixedly connected to a feed funnel (222).

4. A zinc oxide leaching slag collecting device according to claim 3, characterized in that: A filter plate (223) is fixedly connected to the inner wall of the filtering and screening box (221), a bidirectional threaded rod (224) is rotatably penetrated through the front and rear inner walls of the filtering and screening box (221), and a handle (225) is fixedly connected to the front extension of the bidirectional threaded rod (224).

5. A zinc oxide leaching slag collecting device according to claim 4, characterized in that: A limiting hole (226) is fixedly connected to the rear extension of the bidirectional threaded rod (224); two baffles (227) are threadedly connected to the outer wall of the bidirectional threaded rod (224); a fixing block (228) is fixedly connected to the right side of the filtering and screening box (221); and a sliding rod (229) is fixedly connected to the front and rear inner walls of the filtering and screening box (221); the sliding rod (229) slides through the two baffles (227).

6. A zinc oxide leaching slag collecting device according to claim 5, characterized in that: The conveying and collecting mechanism (3) comprises a collecting component (31) and a conveying component (32); the collecting component (31) comprises a large chip collecting funnel (311) which is arranged in communication with the bottom of the filtering and screening box (221); the bottom of the filtering and screening box (221) is arranged in communication with a small chip collecting funnel (312); two sliding blocks (313) are slidably connected to one side of the two chutes (102) which are close to each other; the two sliding blocks (313) are respectively located on the left and right sides of the chutes (102); the sliding block (313) located on the left side is adapted to fit with the bottom of the small chip collecting funnel (312); the sliding block (313) located on the right side is adapted to fit with the bottom of the small chip collecting funnel (312); The slider (313) is matched with the bottom of the large chip collection funnel (311), the tops of the two sliders (313) are fixedly connected to the motor fixing blocks (314), the tops of the two motor fixing blocks (314) are fixedly connected to the second motor (315), the output shafts of the two second motors (315) are fixedly connected to the second rotating shaft (316), the outer walls of the two second rotating shafts (316) are fixedly connected to the gears (317), the top rear side of the workbench (1) is fixedly connected to the rack (318), and the two gears (317) and the rack (318) are meshed with each other.

7. A zinc oxide leaching residue collecting device according to claim 6, characterized in that: The transmission assembly (32) comprises a motor fixing sleeve (321) fixedly connected to the front side of the workbench (1), a motor three (322) being fixedly connected to the inner wall of the motor fixing sleeve (321), and an output shaft of the motor three (322) being fixedly connected to a rotating shaft three (323).

8. A zinc oxide leaching residue collecting device according to claim 7, characterized in that: A conveyor belt (324) is sleeved on the outer wall of the rotating shaft (323); a collection box (325) is slidably connected to the right bottom of the workbench (1); and a collection box (326) is slidably connected to the left bottom of the workbench (1).