A multi-stage mining stone screening apparatus
By using a crankshaft mechanism to drive the screen plate to move synchronously and a dust suppression component to spray water mist, the design solves the problems of low efficiency and dust pollution in existing screening equipment, and achieves a highly efficient and clean ore screening process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 张韵姿
- Filing Date
- 2025-08-02
- Publication Date
- 2026-07-14
AI Technical Summary
Existing screening equipment is inefficient when screening crushed ore, requiring multiple screenings or multiple machines, and causes serious dust pollution, affecting the working environment and increasing costs.
The crankshaft mechanism drives the synchronous movement of three screening plates to achieve step-by-step screening. The dust suppression component sprays water mist onto the ore to suppress dust generation, reduce the high temperature of the crushing roller, and prevent dust from spreading.
It achieves efficient step-by-step screening of ore, reduces dust pollution, lowers energy consumption and equipment footprint, and improves the cleanliness of the working environment.
Smart Images
Figure CN224486686U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ore screening technology, specifically to multi-stage screening equipment for mining. Background Technology
[0002] Crushing and screening are key processes in mining and ore processing, used to classify ores of different particle sizes for further processing or direct sale.
[0003] Existing screening equipment typically uses a single-layer screen when screening crushed ore, which results in poor screening efficiency. Multiple screenings or multiple machines are required, increasing energy consumption and floor space. At the same time, the crushing and screening process generates a large amount of dust, affecting the working environment and increasing the cost of subsequent processing. Utility Model Content
[0004] This utility model aims to overcome the shortcomings of the prior art and provides a multi-stage screening equipment for mining. By setting up screening components and using a crankshaft mechanism to drive the synchronous movement of three screening plates, the ore is screened step by step. By setting up a dust suppression component, water mist is sprayed onto the ore that is about to enter the crushing stage, which effectively suppresses the generation of dust and reduces the high temperature generated by the friction of the crushing roller. At the same time, spraying is applied to the discharge trough to perform secondary dust suppression on the screened ore and prevent dust from spreading with the airflow.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage stone screening device for mining, comprising:
[0006] The box has multiple evenly distributed discharge slots on one side, a crushing box and a water tank installed on the top of the box, multiple screening plates inside the box, and an equipment box installed on one side of the box.
[0007] A screening assembly is disposed between the equipment housing and the screening plate, the screening assembly comprising: a screening screen, a connecting groove, a crankshaft, a sleeve, and a rotating plate; and
[0008] A dust suppression assembly is provided between the housing and the water tank. The dust suppression assembly includes: a water pump, a three-way pipe, a first nozzle, a water spray plate, and a second nozzle.
[0009] Furthermore, the crushing box has a crushing chamber inside, two geared motors are installed on the outside of the crushing box, two crushing rollers are rotatably connected inside the crushing chamber, and the crushing rollers are driven by the geared motors. A feeding pipe is connected to the top of the crushing box, and a discharge pipe is connected to the bottom of the crushing box.
[0010] Furthermore, one side of the screening plate protrudes from the outer surface of the box through the discharge groove. The screening plate is inclined towards the discharge groove. A groove is opened on the screening plate, and a screening mesh is installed inside the groove. The mesh aperture of the multiple screening meshes decreases sequentially from top to bottom.
[0011] Furthermore, a baffle is connected to the top of the screening plate, and fixed plates are connected to the inner walls on both sides of the box. Multiple rollers are installed at the bottom of the screening plate, and the rollers are located on the fixed plates.
[0012] Furthermore, a drive motor is installed on the top of the equipment box, and a crankshaft is driven and connected to the bottom of the drive motor. Three sleeves are fitted on the outside of the crankshaft, and a rotating plate is connected to the outside of the sleeves. A connecting plate is rotatably connected to one side of the rotating plate, and a connecting groove is opened on one side of the screening plate.
[0013] Furthermore, the screening plate has a connecting hole that communicates with the connecting groove, and a connecting bolt passes through the connecting hole.
[0014] Furthermore, a plurality of limiting grooves are provided between the housing and the equipment box, and one end of the connecting plate extends through the limiting groove into the connecting groove, and a through hole corresponding to the position of the connecting hole is provided on the connecting plate.
[0015] Furthermore, a water pump is installed inside the water tank, a three-way pipe is connected to the top of the water pump, an annular pipe is connected to the outside of the feeding pipe, one end of the three-way pipe is connected to the annular pipe, a plurality of first nozzles are installed inside the annular pipe, and the first nozzles extend into the feeding pipe, a baffle is installed on the inner wall of the feeding pipe, and the baffle is located above the first nozzles.
[0016] Furthermore, three water spray plates are installed on one side of the box, and the multiple water spray plates are respectively located above the multiple discharge slots. The other end of the three-way pipe is connected to the uppermost water spray plate. Multiple second nozzles are installed at the bottom of the water spray plate, and a connecting pipe is connected between the three water spray plates.
[0017] This utility model provides a multi-stage stone screening device for mining, which has the following beneficial effects:
[0018] The advantages of this invention are as follows: by setting up the screening components and using a crankshaft mechanism to drive the synchronous movement of the three screening plates, the ore can be screened step by step. Secondly, by setting up the dust suppression components, water mist is sprayed onto the ore that is about to enter the crushing stage, which effectively suppresses the generation of dust and reduces the high temperature generated by the friction of the crushing roller. At the same time, spraying is applied to the discharge trough to perform secondary dust suppression on the screened ore and prevent dust from spreading with the airflow. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0020] Figure 2 This is a cross-sectional view of the overall structure of this utility model.
[0021] Figure 3 This is a front view of the overall structure of this utility model.
[0022] Figure 4 This is another schematic diagram of the overall structure of this utility model.
[0023] Figure 5 This is a half-sectional view of the overall structure of this utility model.
[0024] Figure 6 This is a schematic diagram of the water spray plate structure of this utility model.
[0025] Figure 7 This is a schematic diagram of the screening plate structure of this utility model.
[0026] Figure 8 For the present utility model Figure 2 Enlarged view of point A in the image.
[0027] Figure 9 For the present utility model Figure 2 Enlarged view of point B in the image.
[0028] Figure 1-9 Components: 1. Box body; 101. Discharge trough; 102. Fixing plate; 2. Crushing box; 201. Crushing chamber; 202. Feeding pipe; 203. Gear motor; 204. Crushing roller; 205. Discharge pipe; 3. Screening plate; 301. Screening mesh; 302. Baffle; 303. Roller; 304. Connecting groove; 305. Connecting hole; 306. Connecting bolt; 4. Equipment box; 401. Drive motor; 402. Crankshaft; 403. Sleeve; 404. Rotating plate; 405. Connecting plate; 406. Limiting groove; 407. Through hole; 5. Water tank; 501. Water pump; 502. T-pipe; 503. Annular pipe; 504. First nozzle; 505. Baffle; 6. Spray plate; 601. Second nozzle; 602. Connecting pipe. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0030] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0031] This application provides a multi-stage stone screening device for mining, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.
[0032] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0033] Example 1
[0034] Please see Figure 1-9 In this embodiment, a multi-stage stone screening device for mining is provided, comprising: a housing 1, with multiple evenly distributed discharge troughs 101 on one side of the housing 1, a crushing box 2 installed on the top of the housing 1, a water tank 5 installed on the top of the housing 1, multiple screening plates 3 inside the housing 1, and an equipment box 4 installed on one side of the housing 1; a screening assembly disposed between the equipment box 4 and the screening plates 3, the screening assembly comprising: a screening mesh 301, a connecting groove 304, a crankshaft 402, a sleeve 403, and a rotating plate 404; and a dust suppression assembly disposed between the housing 1 and the water tank 5, the dust suppression assembly comprising: a water pump 501, a three-way pipe 502, a first nozzle 504, a water spray plate 6, and a second nozzle 601.
[0035] The ore is screened step by step by using a crankshaft mechanism to drive the synchronous movement of three screening plates 3 through the setting of the screening components. The dust suppression components spray water mist onto the ore that is about to enter the crushing stage, which effectively suppresses the generation of dust and reduces the high temperature generated by the friction of the crushing roller 204. At the same time, the discharge trough 101 is sprayed to perform secondary dust suppression on the screened ore and prevent dust from spreading with the airflow.
[0036] Example 2
[0037] Based on Embodiment 1, the crushing box 2 has a crushing chamber 201 inside, two reduction motors 203 are installed on the outside of the crushing box 2, two crushing rollers 204 are rotatably connected inside the crushing chamber 201, and the crushing rollers 204 are driven by the reduction motors 203. The top of the crushing box 2 is connected to a feeding pipe 202, and the bottom of the crushing box 2 is connected to a discharge pipe 205.
[0038] When screening the ore, the ore raw material is poured into the crushing chamber 201 through the feeding pipe 202. At this time, the crushing roller 204 is driven to rotate by the reduction motor 203, so that the crushing roller 204 performs preliminary crushing of the ore raw material, so as to facilitate the subsequent screening operation. The crushed ore raw material falls onto the uppermost screening plate 3 inside the box 1 through the discharge pipe 205.
[0039] Example 3
[0040] Based on Embodiment 1 and Embodiment 2, one side of the screening plate 3 protrudes from the outer surface of the box body 1 through the discharge groove 101. The screening plate 3 is inclined towards the discharge groove 101. A groove is opened on the screening plate 3, and a screening mesh 301 is installed inside the groove. The mesh aperture of the multiple screening meshes 301 decreases from top to bottom. A baffle 302 is connected to the top of the screening plate 3. A fixing plate 102 is connected to the inner walls on both sides of the box body 1. Multiple rollers 303 are installed at the bottom of the screening plate 3, and the rollers 303 are located on the fixing plate 102.
[0041] The equipment box 4 is equipped with a drive motor 401 on the top, and a crankshaft 402 is driven and connected to the bottom of the drive motor 401. Three sleeves 403 are sleeved on the outside of the crankshaft 402. A rotating plate 404 is connected to the outside of the sleeves 403. A connecting plate 405 is rotatably connected to one side of the rotating plate 404. A connecting groove 304 is opened on one side of the screening plate 3. A connecting hole 305 communicating with the connecting groove 304 is opened on the screening plate 3. A connecting bolt 306 passes through the connecting hole 305. Multiple limiting grooves 406 are opened between the box body 1 and the equipment box 4. One end of the connecting plate 405 extends through the limiting groove 406 into the connecting groove 304. A through hole 407 corresponding to the position of the connecting hole 305 is opened on the connecting plate 405.
[0042] After the ore falls onto the screening plate 3, it is screened by the screening mesh 301, which isolates the large ore on the screening mesh 301. The mesh size of the three screening meshes 301 decreases from top to bottom, so that the ore can be effectively screened according to its degree of crushing, so that it can be processed according to the degree of crushing in the subsequent processing.
[0043] During the screening process, the drive motor 401 drives the crankshaft 402 to rotate, and the crankshaft 402 drives one end of multiple rotating plates 404 to move through multiple sleeves 403. This causes the other end of the rotating plates 404 to drive the connecting plate 405 to move through the rotating shaft. Since the cross-sectional size of the connecting plate 405 is adapted to the cross-sectional profile of the limiting groove 406, the connecting plate 405 is restricted by the limiting groove 406 to only perform linear motion. Therefore, the rotating plate 404 can drive the connecting plate 405 to perform reciprocating linear motion. The other end of the connecting plate 405 is inserted into the connecting groove 304 and connected to the screening plate 3 by the connecting bolt 306. This causes the connecting plate 405 to drive the screening plate 3 to perform reciprocating linear motion, thereby causing the ore on the screening screen 301 to be thrown, thus achieving the purpose of screening. On the other hand, the inclined screening plate 3 allows the ore that fails to pass through the screening screen 301 to be discharged along the inclined screening plate 3 towards the discharge trough 101 and discharged to the outside.
[0044] Then, by setting the roller 303 and the fixed plate 102, the reciprocating movement of the screening plate 3 can be made smoother, improving the screening effect. By setting the baffle 302, the ore can be prevented from falling from the gap between the screening plate 3 and the box 1, causing incomplete screening, or even the ore getting stuck in the gap between the screening plate 3 and the box 1, causing damage to the screening plate 3.
[0045] Example 4
[0046] Based on Embodiment 1 and Embodiment 2, a water pump 501 is installed inside the water tank 5. A three-way pipe 502 is connected to the top of the water pump 501. An annular pipe 503 is connected to the outside of the feeding pipe 202. One end of the three-way pipe 502 is connected to the annular pipe 503. Multiple first nozzles 504 are installed inside the annular pipe 503, and the first nozzles 504 extend into the feeding pipe 202. A baffle 505 is installed on the inner wall of the feeding pipe 202, and the baffle 505 is located above the first nozzles 504.
[0047] During the crushing and screening of ore, a large amount of dust is inevitably generated. At this time, water is pumped from the water tank 5 into the three-way pipe 502 by the water pump 501, and then transported to the annular pipe 503 through one end of the three-way pipe 502. The water is then atomized and sprayed out through multiple first nozzles 504. The water mist sprayed at the opening of the feeding pipe 202 can prevent dust from drifting out of the pipe opening during the ore pouring and crushing process. At the same time, it can reduce dust inside the crushing chamber 201. On the other hand, since the crushing process generates heat due to mechanical friction, the temperature of the crushing roller 204 will rise. The sprayed water mist can cool down the crushing roller 204, reduce equipment wear caused by overheating and extend its service life. At the same time, an appropriate amount of water can play a certain lubricating role, reduce the direct hard contact between the ore and the crushing roller 204, thereby reducing the wear rate and protecting the surface of the crushing roller 204 from excessive wear.
[0048] Among them, three water spray plates 6 are installed on one side of the box body 1, and the multiple water spray plates 6 are located above multiple discharge slots 101 respectively. The other end of the three-way pipe 502 is connected to the uppermost water spray plate 6. Multiple second nozzles 601 are installed at the bottom of the water spray plate 6, and the three water spray plates 6 are connected by a connecting pipe 602.
[0049] Then, some water is discharged into the top spray plate 6 through the other end of the three-way pipe 502, and then into the other two spray plates 6 through the connecting pipe 602 between the spray plates 6. The water in the spray plate 6 is then atomized and sprayed out through the second nozzle 601 to spray dust on the discharge tank 101, so as to prevent some dust from being discharged through the discharge tank 101 during the screening process, and further achieve the effect of dust reduction.
[0050] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0051] The above provides a detailed description of a multi-stage stone screening device for mining, as provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A multi-stage stone screening device for mining, characterized in that, include: Box (1), with multiple evenly distributed discharge slots (101) on one side of the box (1), a crushing box (2) installed on the top of the box (1), a water tank (5) installed on the top of the box (1), multiple screening plates (3) inside the box (1), and an equipment box (4) installed on one side of the box (1). A screening assembly is disposed between the equipment housing (4) and the screening plate (3), the screening assembly comprising: a screening mesh (301), a connecting groove (304), a crankshaft (402), a sleeve (403), and a rotating plate (404); and A dust suppression assembly is provided between the housing (1) and the water tank (5). The dust suppression assembly includes: a water pump (501), a three-way pipe (502), a first nozzle (504), a water spray plate (6), and a second nozzle (601).
2. The multi-stage screening equipment for mining as described in claim 1, characterized in that, The crushing box (2) has a crushing chamber (201) inside. Two geared motors (203) are installed on the outside of the crushing box (2). Two crushing rollers (204) are rotatably connected inside the crushing chamber (201), and the crushing rollers (204) are driven by the geared motors (203). A feeding pipe (202) is connected to the top of the crushing box (2), and a discharge pipe (205) is connected to the bottom of the crushing box (2).
3. The multi-stage screening equipment for mining as described in claim 1, characterized in that, One side of the screening plate (3) protrudes from the outer surface of the box body (1) through the discharge groove (101). The screening plate (3) is inclined towards the discharge groove (101). A groove is opened on the screening plate (3). A screening mesh (301) is installed inside the groove, and the sieve hole diameter of the multiple screening meshes (301) decreases from top to bottom.
4. The multi-stage screening equipment for mining according to claim 1, characterized in that, The top of the screening plate (3) is connected to a baffle (302), and the inner walls on both sides of the box (1) are connected to a fixing plate (102). Multiple rollers (303) are installed at the bottom of the screening plate (3), and the rollers (303) are located on the fixing plate (102).
5. The multi-stage screening equipment for mining according to claim 1, characterized in that, The equipment box (4) is equipped with a drive motor (401) on the top. The drive motor (401) is connected to a crankshaft (402) at the bottom. Three sleeves (403) are sleeved on the outside of the crankshaft (402). A rotating plate (404) is connected to the outside of the sleeves (403). A connecting plate (405) is rotatably connected to one side of the rotating plate (404). A connecting groove (304) is opened on one side of the screening plate (3).
6. The multi-stage screening equipment for mining according to claim 5, characterized in that, The screening plate (3) has a connecting hole (305) that communicates with the connecting groove (304), and a connecting bolt (306) passes through the connecting hole (305).
7. The multi-stage screening equipment for mining according to claim 6, characterized in that, Multiple limiting grooves (406) are provided between the housing (1) and the equipment box (4), and one end of the connecting plate (405) extends through the limiting groove (406) into the connecting groove (304). A through hole (407) corresponding to the position of the connecting hole (305) is provided on the connecting plate (405).
8. The multi-stage screening equipment for mining according to claim 2, characterized in that, A water pump (501) is installed inside the water tank (5). A three-way pipe (502) is connected to the top of the water pump (501). An annular pipe (503) is connected to the outside of the feeding pipe (202). One end of the three-way pipe (502) is connected to the annular pipe (503). A plurality of first nozzles (504) are installed inside the annular pipe (503), and the first nozzles (504) extend into the feeding pipe (202). A baffle (505) is installed on the inner wall of the feeding pipe (202), and the baffle (505) is located above the first nozzles (504).
9. The multi-stage screening equipment for mining according to claim 8, characterized in that, Three water spray plates (6) are installed on one side of the box body (1), and the multiple water spray plates (6) are respectively located above the multiple discharge slots (101). The other end of the three-way pipe (502) is connected to the uppermost water spray plate (6). Multiple second nozzles (601) are installed at the bottom of the water spray plate (6), and a connecting pipe (602) is connected between the three water spray plates (6).