Barite crusher feeding mechanism with pre-screening function

Abstract

The utility model provides a barite crusher feeding mechanism with pre -screening function relates to barite processing equipment technical field, including base assembly, protection edge board, first blanking plate, second blanking plate, screening mechanism and cleaning component, base assembly contains the base main part of hollow structure and the top plate of integral connection, and the top plate is provided with the filter water hole, and the base main part is slidably connected with the pull -out filter plate, the protection edge board is fixed in the top plate front and back both sides, first, second blanking plate is respectively inclined to be connected in the protection edge board left and right two ends, and the corresponding fine material and coarse material are received, screening mechanism realizes the coarse and fine material classification through the screen roller rotation and the baffle inclination design, the cleaning component extracts the circulating water in the base main part and washes the material impurity, has realized barite raw ore pre -screening, impurity efficient removal and water resource recycling, avoids fine material repeated crushing, reduces the energy consumption, promotes barite purity, reduces the equipment wear and tear, significantly promotes the continuity and production efficiency of crushing process.

Description

Technical Field

[0001] This utility model relates to the technical field of barite processing equipment, and in particular to a barite crusher feeding mechanism with pre-screening function. Background Technology

[0002] Barite, as an important non-metallic mineral, requires crushing in a crusher to break down the raw ore into particles suitable for subsequent grinding and flotation. The mined barite ore, besides large pieces, contains fine particles that already meet the particle size requirements of subsequent processes, along with impurities such as mud and dust. If the raw ore is directly fed into the crusher, firstly, the already qualified fine particles will be repeatedly crushed, increasing equipment energy consumption and generating a large amount of dust due to over-crushing, resulting in resource waste and environmental pollution. Secondly, mud and impurities will adhere to the crusher liners and crushing chamber surface, reducing crushing efficiency, accelerating equipment wear, and affecting the purity of the crushed product. Existing crusher feeding mechanisms only achieve simple screening and anti-clogging with a single screen bar, but cannot separate the mud and dust impurities in the raw barite ore. Utility Model Content

[0003] The purpose of this utility model is to provide a feeding mechanism for a barite crusher with pre-screening function to solve the problems mentioned in the background art. To achieve the above objective, this utility model adopts the following technical solution: A barite crusher feeding mechanism with pre-screening function includes a base assembly. Protective side plates are fixedly installed at the front and rear ends of the top of the base assembly. A first discharge plate and a second discharge plate are respectively connected to the left and right sides of the top of the base assembly. A screening mechanism is provided on the top of the base assembly, and a cleaning component is provided above the screening mechanism. The base assembly includes a hollow base body, with a top plate integrally connected to the top of the base body. Several water filter holes are opened on the top plate. A removable filter plate is slidably connected inside the base body. The screening mechanism includes a left fixed plate fixedly installed on the left side of the top of the top plate. A partition plate is fixedly connected to the right side of the left fixed plate. A right fixed plate fixedly installed on the right side of the top of the top plate is connected to the other end of the partition plate. A screen roller assembly is provided on the partition plate. The cleaning component includes a water pump located outside the base body. The water inlet of the water pump is connected to the interior of the base body through a pipe. The water outlet of the water pump is connected to a water guide pipe, and a water distribution pipe is connected to the water guide pipe. Multiple high-pressure water spray heads are connected to the bottom of the water distribution pipe.

[0004] Preferably, the top plate is inclined with the left end lower and the right end higher. The right end of the top plate is connected to the feed end of the first feed plate to guide the standard fine particles separated by the screening mechanism to slide down the inclined surface of the top plate onto the first feed plate. The filter holes on the surface of the top plate are evenly distributed along the inclined direction, and the diameter of the filter holes remains consistent from the left end to the right end. The base assembly also includes a viewing window on one side of the base body. The other side of the base body is provided with a water inlet pipe with a solenoid valve. The water inlet pipe is used to inject clean water into the interior of the base body. The viewing window is used to observe the water level and impurity accumulation inside the base body.

[0005] Preferably, there are two protective side plates, which are symmetrically fixed to the front and rear sides of the top plate of the base body. The first and second feeding plates are respectively inclined and fixed to the left and right ends of the protective side plates. The end of the first feeding plate extends to the fine material collection bin, and the end of the second feeding plate extends to the crusher inlet. The screen roller assembly includes five gears located on the left side of the left fixed plate. Each pair of gears meshes with each other. A rotating shaft is fixedly connected to the side of each gear near the left fixed plate. The rotating shaft passes through the left fixed plate and is rotatably connected to the left fixed plate. The other end of the rotating shaft is rotatably connected to the right fixed plate. A roller is fixedly sleeved on the outside of the rotating shaft.

[0006] Preferably, the screening mechanism further includes a fixed frame fixedly installed on the inner side wall of the first feeding plate. A drive motor is installed on the fixed frame, and the output end of the drive motor is fixedly connected to one of the gears. The partition is inclined with the left side higher than the right side. The top of the partition has an arc-shaped groove adapted to the roller. The roller is located inside the arc-shaped groove and is rotatably connected to the partition. The cross-sectional width of the left fixed plate, the partition, and the right fixed plate connected to each other is equal to the diameter of the roller. The top of the right fixed plate has an arc-shaped structure, and the arc-shaped structure is consistent with the curvature of the circumferential surface of the roller.

[0007] Preferably, there are five left fixed plates, five partitions, and five right fixed plates. There are equal-sized feeding gaps between two adjacent partitions and between the outermost partition and the protective side plate. These gaps allow large pieces of barite material on the roller to fall onto the second feeding plate along the left-high-right-low inclination of the partitions. The bottom of the partitions is fixedly connected to the top of the top plate. The filter holes are located between two adjacent partitions on the top plate and between the outermost partition and the protective side plate. These holes allow the wastewater after cleaning to flow back into the base body through the filter holes.

[0008] Preferably, the cleaning assembly further includes a pressure regulating valve disposed on the water guide pipe. The water guide pipe is installed on the outside of one of the protective side plates by a fixing member. The water distribution pipe passes through one of the protective side plates and its other end is fixedly connected to the inner wall of another protective side plate. There are six water distribution pipes. The high-pressure water nozzles at the lower ends of the three water distribution pipes near the first material feeding plate are tilted to the right, and the high-pressure water nozzles at the lower ends of the three water distribution pipes near the second material feeding plate are tilted to the left. An inlet is fixedly installed between the two protective side plates at the end near the first material feeding plate. Vibration motors are installed on both sides of the inlet. A controller is installed on the outer wall of the base body. The solenoid valve, drive motor, water pump, pressure regulating valve, and vibration motor are all electrically connected to the controller and are uniformly controlled by the controller.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This utility model, through its graded screening structure, can accurately separate coarse and fine materials. Fine materials can be collected directly without entering the crusher, which not only reduces equipment energy consumption but also reduces dust generated by over-crushing, avoiding resource waste and environmental pollution. At the same time, the material is thoroughly washed by multi-angle high-pressure water flow, which can remove impurities from the surface of barite ore, improve the purity of barite, and meet the purity requirements of subsequent grinding, flotation and other processes. Meanwhile, impurities no longer adhere to the crushing chamber and liners, effectively reducing equipment wear, extending the service life of liners, and improving crushing efficiency.

[0010] 2. This utility model reduces the equipment blockage rate through multiple anti-clogging designs, including vibration-assisted feeding, synchronous rotation of the screen rollers to guide materials, and wastewater circulation to prevent siltation. Simultaneously, it is equipped with a controller to achieve fully automated control of the entire process, eliminating the need for frequent manual operation and shortening the single cleaning time. Furthermore, the circulation design, featuring a hollow water storage base, top plate filter holes for backflow, and a pull-out filter plate for purification, improves water resource utilization and avoids environmental pollution caused by direct wastewater discharge. The reduced impurity content in the circulating water prevents blockage of the cleaning components, further lowering equipment maintenance and operating costs, thus balancing practicality and environmental protection. Attached Figure Description

[0011] Figure 1 This is a front-view perspective view of the feeding mechanism of the barite crusher with pre-screening function described in this utility model. Figure 2 This is a rear-view perspective view of the feeding mechanism of the barite crusher with pre-screening function described in this utility model. Figure 3 This is a cross-sectional view of the feeding mechanism of the barite crusher with pre-screening function described in this utility model; Figure 4This is a perspective view of the pre-screening mechanism and the feeding structure in the barite crusher with pre-screening function described in this utility model; Figure 5 This is a three-dimensional view of the pre-screening mechanism in the feeding mechanism of the barite crusher with pre-screening function described in this utility model; Figure 6 This is a perspective view of the screen roller structure in the feeding mechanism of the barite crusher with pre-screening function described in this utility model.

[0012] Legend: 1-Base assembly; 11-Base body; 12-Top plate; 13-Filter hole; 14-Retractable filter plate; 15-Viewing window; 16-Water inlet pipe; 17-Solenoid valve; 2-Protective side plate; 3-First feeding plate; 4-Second feeding plate; 5-Screening mechanism; 51-Left fixed plate; 52-Partition plate; 53-Right fixed plate; 54-Screening roller assembly; 541-Gear; 542-Rotating shaft; 543-Roller; 55-Arc-shaped groove; 56-Fixed frame; 57-Drive motor; 6-Cleaning assembly; 61-Water pump; 62-Water guide pipe; 63-Water distribution pipe; 64-High-pressure spray head; 65-Pressure regulating valve; 7-Inlet; 8-Vibration motor; 9-Controller. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can also be implemented in other ways than those described herein, and therefore the present invention is not limited to the specific embodiments disclosed in the following specification.

[0015] Please see Figures 1-6A barite crusher feeding mechanism with pre-screening function includes a base assembly 1. Protective side plates 2 are fixedly installed at the front and rear ends of the top of the base assembly 1. A first feeding plate 3 and a second feeding plate 4 are respectively connected to the left and right sides of the top of the base assembly 1. A screening mechanism 5 is provided on the top of the base assembly 1. A cleaning component 6 is provided on the upper part of the screening mechanism 5. The base assembly 1 includes a hollow base body 11. A top plate 12 is integrally connected to the top of the base body 11. A plurality of water filter holes 13 are opened on the top plate 12. A pull-out filter plate 14 is slidably connected inside the base body 11. The screening mechanism 5 includes a left fixed plate 51 fixedly installed on the top left end of the top plate 12. A partition plate 52 is fixedly connected to the right side of the left fixed plate 51. The other end of the partition plate 52 is connected to a right fixed plate 53 fixedly installed on the top right end of the top plate 12. A screen roller assembly 54 is provided on the partition plate 52. The cleaning assembly 6 includes a water pump 61 located outside the base body 11. The water inlet of the water pump 61 is connected to the inside of the base body 11 through a pipe. The water outlet of the water pump 61 is connected to a water guide pipe 62. A water distribution pipe 63 is connected to the water guide pipe 62. Multiple high-pressure water spray heads 64 are connected to the bottom of the water distribution pipe 63.

[0016] It should be specifically noted that the top plate 12 is inclined with the left end lower and the right end higher. The right end of the top plate 12 is connected to the feed end of the first feed plate 3, and the surface roughness Ra of the top plate 12 is ≤6.3μm. This is used to guide the standard fine particles separated by the screening mechanism 5 to slide down the inclined surface of the top plate 12 onto the first feed plate 3. The filter holes 13 on the surface of the top plate 12 are evenly distributed along the inclined direction, and the diameter of the filter holes 13 remains consistent from the left end to the right end. The bottom of the partition plate 52 is fixedly connected to the top of the top plate 12. The filter holes 13 are located between two adjacent partition plates 52 on the top plate 12, and between the outermost partition plate 52 and the protective side plate 2. This is used to allow the wastewater after cleaning to flow back into the base body 11 through the filter holes 13.

[0017] Furthermore, the base assembly 1 also includes a viewing window 15 located on one side of the base body 11, and a water inlet pipe 16 with a solenoid valve 17 located on the top of the other side of the base body 11. The water inlet pipe 16 is used to inject clean water into the interior of the base body 11, and the viewing window 15 is used to observe the water level and impurity accumulation inside the base body 11.

[0018] Furthermore, there are two protective side plates 2, which are symmetrically fixed on the front and rear sides of the top plate 12 of the base body 11; the first feeding plate 3 and the second feeding plate 4 are respectively inclined and fixed on the left and right ends of the protective side plates 2, the end of the first feeding plate 3 extends to the fine material collection bin, and the end of the second feeding plate 4 extends to the crusher feed inlet.

[0019] Furthermore, the base assembly 1 serves as the basic load-bearing structure of the entire equipment, supporting all upper components such as the protective side plate 2, screening mechanism 5, first feeding plate 3, and second feeding plate 4. It also constructs a water resource recycling system for water storage, wastewater recovery, and filtration. The pull-out filter plate 14 inside the base body 11 has 3-5mm filter holes, which can intercept mud, dust, and impurities in the subsequent cleaning wastewater, preparing for wastewater recycling. The protective side plate 2 can prevent materials from splashing forward and backward during the sliding process, avoiding resource waste and safety hazards.

[0020] Please see Figures 4-6 The screening roller assembly 54 includes five gears 541 located on the left side of the left fixed plate 51. Each pair of gears 541 meshes with each other. A rotating shaft 542 is fixedly connected to the side of each gear 541 closest to the left fixed plate 51. The rotating shaft 542 passes through the left fixed plate 51 and is rotatably connected to the left fixed plate 51. The other end of the rotating shaft 542 is rotatably connected to the right fixed plate 53. A roller 543 is fixedly sleeved on the outer side of the rotating shaft 542. The screening mechanism 5 also includes a fixed frame 56 fixedly installed on the inner side wall of the first feed plate 3. A drive motor 57 is installed on the fixed frame 56. The output end of the drive motor 57 is fixedly connected to one of the gears 541.

[0021] It should be specifically noted that the partition 52 is inclined on the left and lower on the right. The top of the partition 52 has an arc-shaped groove 55 that matches the roller 543. The roller 543 is located inside the arc-shaped groove 55 and is rotatably connected to the partition 52. The cross-sectional width of the interconnected left fixed plate 51, partition 52, and right fixed plate 53 is equal to the diameter of the roller 543. The top of the right fixed plate 53 has an arc-shaped structure, and this arc-shaped structure matches the curvature of the circumferential surface of the roller 543. The left fixed plate 51, partition 52, and right fixed plate... There are five of each type of partition 53. There are equal-sized feeding gaps between two adjacent partitions 52 and between the outermost partition 52 and the protective side plate 2. These gaps allow large pieces of barite material on the roller 543 to fall down to the second feeding plate 4 along the inclined direction of the partition 52, which is higher on the left and lower on the right. The cross-sectional widths of the left fixed plate 51, partition 52, and right fixed plate 53 are all equal to the diameter of the roller 543, ensuring that fine material falls to the top plate 12 without any omission and coarse material slides down the inclined surface of the roller 543 to the second feeding plate 4.

[0022] Please see Figures 1-3The cleaning assembly 6 also includes a pressure regulating valve 65 disposed on the water guide pipe 62. The water guide pipe 62 is installed on the outside of a protective side plate 2 by a fastener. The water distribution pipe 63 passes through a protective side plate 2 and its other end is fixedly connected to the inner wall of another protective side plate 2. There are six water distribution pipes 63. The high-pressure water spray head 64 at the lower end of the three water distribution pipes 63 near the first feeding plate 3 is inclined to the right, and the high-pressure water spray head 64 at the lower end of the three water distribution pipes 63 near the second feeding plate 4 is inclined to the left.

[0023] Please see Figures 1-3 A feed inlet 7 is fixedly installed between the two protective side plates 2 and one end near the first feed plate 3. Vibration motors 8 are installed on both sides of the feed inlet 7. A controller 9 is installed on the outer wall of the base body 11. The solenoid valve 17, drive motor 57, water pump 61, pressure regulating valve 65, and vibration motor 8 are all electrically connected to the controller 9 and are controlled by the controller 9.

[0024] Please see Figures 1-6 The working principle of the entire equipment during specific use is as follows: Step 1, pre-start preparation stage: The operator sends a command to the solenoid valve 17 through the controller 9 to open the solenoid valve 17 of the water inlet pipe 16, and external clean water is injected into the hollow base body 11 of the base assembly 1 through the water inlet pipe 16; during the process, the operator observes the water level through the viewing window 15 on one side of the base body 11; at the same time, confirm that the pull-out filter plate 14 inside the base body 11 has slid into the designated slide groove, check the connection stability of the left fixed plate 51, right fixed plate 53 and partition plate 52 of the screening mechanism 5, ensure that the roller 543 of the screen roller assembly 54 is embedded in the arc-shaped groove 55 at the top of the partition plate 52, and that the roller 543 and the inner wall of the arc-shaped groove 55 are not stuck, and set the speed of the drive motor 57, the vibration frequency of the vibration motor 8 and the initial water pressure of the pressure regulating valve 65 through the controller 9 to complete the initialization of the equipment operating parameters; Step 2, Feeding and Guiding Stage: The operator pours the mined barite ore into the feed inlet 7 between the two protective side plates 2. At the same time, the controller 9 starts the vibration motors 8 on both sides of the feed inlet 7. The high-frequency vibration generated by the vibration motors 8 is transmitted to the material through the feed inlet 7, which prevents the lumpy ore from accumulating and blocking at the bottom of the feed inlet 7, and ensures that the material slides down to the screening mechanism 5 at a uniform speed. Step 3, Grading and Screening Stage: The controller 9 synchronously starts the drive motor 57 of the screening mechanism 5. The output end of the drive motor 57 drives one of the gears 541 fixedly connected to it to rotate. Since all five gears 541 are located on the left side of the left fixed plate 51 and mesh with each other in pairs, the driving wheel drives the other four driven gears 541 to rotate synchronously through gear meshing transmission. Then, through the rotating shaft 542 fixedly connected to one side of the gear 541, the roller 543 sleeved on the outside of the rotating shaft 542 is driven to rotate smoothly in the arc-shaped groove 55; the material slides... After falling onto the surface of the rotating roller 543, because the partition 52 is inclined with the left side higher than the right side, and there are equal feeding gaps between adjacent partitions 52 and between the outermost partition 52 and the protective side plate 2, the material is graded and diverted. Coarse material cannot pass through the gap between the rollers 543. Under the combined action of its own weight and the rotational friction of the rollers 543, it slides to the right along the inclined direction of the partition 52 and falls into the second feeding plate 4 below. Fine material and impurities fall vertically to the surface of the top plate 12 below the screening mechanism 5 through the gap between the rollers 543. Step 4, High-Pressure Impurity Removal Stage: Simultaneously with the grading and screening, controller 9 activates the water pump 61 of the cleaning component 6. The inlet of pump 61 draws clean water from the base body 11 through a pipe, and the outlet delivers the clean water to the water guide pipe 62. The water guide pipe 62 is fixed to the outside of one of the protective side plates 2, diverting the clean water to six branch pipes 63. The high-pressure spray nozzles 64 at the bottom of the branch pipes 63 are designed with left and right sections tilted. The lower ends of the three branch pipes 63 closest to the first discharge plate 3 are sprayed with high-pressure water... The water head 64 is tilted 45° to the right, near the lower end of the three water distribution pipes 63 on the side of the second feeding plate 4. The high-pressure water spray head 64 is tilted 45° to the left, cross-washing the barite on the roller 543. The high-pressure water jet from the high-pressure water spray head 64 can peel off the mud, dust and impurities attached to the surface of the barite ore, thus cleaning the barite ore. If the impurities in the ore are severely adhered, the operator can adjust the pressure regulating valve 65 on the water guide pipe 62 through the controller 9 to increase the water pressure and ensure that the impurities are completely removed. Step 5, Material Diversion and Collection Stage: After high-pressure washing, the fine material falls onto the surface of the top plate 12. Since the top plate 12 is inclined with the left end lower and the right end higher, the fine material slides to the left along the inclined surface of the top plate 12 under the action of gravity, and finally slides into the first feed plate 3 from the left end of the top plate 12. The first feed plate 3 is inclined and fixed to the left end of the protective side plate 2. The fine material slides down the first feed plate 3 to the fine material collection bin at the end, completing the fine material collection. The coarse material that falls into the second feed plate 4 after grading and screening, because the second feed plate 4 is inclined and fixed to the right end of the protective side plate 2, slides down the second feed plate 4 to the end and directly enters the feed inlet of the crusher, providing raw materials that meet the coarse crushing requirements for subsequent crushing processes and avoiding repeated crushing of fine material. Step Six, Wastewater Recovery and Recycling Stage: The wastewater after high-pressure washing falls onto the surface of the top plate 12 along with the fine material. While flowing along the inclined surface of the top plate 12, it permeates downward through the evenly distributed filter holes 13 on the top plate 12. After permeation, the wastewater falls into the removable filter plate 14 inside the base body 11. The 3-5mm filter holes of the removable filter plate 14 intercept the mud and dust impurities in the wastewater. The filtered clean water flows back to the bottom of the base body 11, forming a water resource cycle and reducing water consumption. After the equipment has been running continuously for 4-6 hours, the controller 9 issues a prompt signal. The operator shuts down the equipment, pulls the removable filter plate 14 out of the base body 11, cleans the mud and dust impurities accumulated on the filter plate, and slides it back into the chute after cleaning to ensure the subsequent wastewater filtration effect.

[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A feeding mechanism for a barite crusher with pre-screening function, comprising a base assembly (1), characterized in that: The base assembly (1) has protective side plates (2) fixedly installed at the front and rear ends of the top. The first feeding plate (3) and the second feeding plate (4) are respectively connected to the left and right sides of the top of the base assembly (1). The top of the base assembly (1) is provided with a screening mechanism (5), and a cleaning component (6) is provided on the upper part of the screening mechanism (5). The base assembly (1) includes a hollow base body (11). The top of the base body (11) is integrally connected with a top plate (12). The top plate (12) is provided with a plurality of water filter holes (13). The interior of the base body (11) is slidably connected with a pull-out filter plate (14). The screening mechanism (5) includes a filter plate (14) fixedly installed on the top plate (13). 2) The left fixed plate (51) at the top left end, the right side of the left fixed plate (51) is fixedly connected to the partition plate (52), the other end of the partition plate (52) is connected to the right fixed plate (53) fixedly installed at the top right end of the top plate (12), and the partition plate (52) is provided with a screen roller assembly (54); the cleaning assembly (6) includes a water pump (61) located outside the base body (11), the water inlet end of the water pump (61) is connected to the inside of the base body (11) through a pipe, the water outlet end of the water pump (61) is connected to a water guide pipe (62), the water guide pipe (62) is connected to a water distribution pipe (63), and the bottom of the water distribution pipe (63) is connected to multiple high-pressure water nozzles (64).

2. The feeding mechanism of a barite crusher with pre-screening function according to claim 1, characterized in that: The top plate (12) is inclined with the left end lower and the right end higher. The right end of the top plate (12) is connected to the feed end of the first feed plate (3) to guide the standard fine particles separated by the screening mechanism (5) to slide down the inclined surface of the top plate (12) onto the first feed plate (3). The filter holes (13) on the surface of the top plate (12) are evenly distributed along the inclined direction, and the diameter of the filter holes (13) remains consistent from the left end to the right end.

3. The feeding mechanism of a barite crusher with pre-screening function according to claim 1, characterized in that: The base assembly (1) also includes a viewing window (15) on one side of the base body (11), and a water inlet pipe (16) with a solenoid valve (17) is provided on the top of the other side of the base body (11). The water inlet pipe (16) is used to inject clean water into the interior of the base body (11), and the viewing window (15) is used to observe the water level and impurity accumulation in the base body (11).

4. The feeding mechanism of a barite crusher with pre-screening function according to claim 1, characterized in that: The number of the protective side plates (2) is two. The two protective side plates (2) are symmetrically fixed on the front and rear sides of the top plate (12) of the base body (11). The first feeding plate (3) and the second feeding plate (4) are respectively inclined and fixed on the left and right ends of the protective side plates (2). The end of the first feeding plate (3) extends to the fine material collection bin, and the end of the second feeding plate (4) extends to the crusher feed port.

5. The feeding mechanism of a barite crusher with pre-screening function according to claim 1, characterized in that: The screen roller assembly (54) includes five gears (541) located on the left side of the left fixed plate (51). Each pair of gears (541) meshes with each other. Each gear (541) is fixedly connected to a rotating shaft (542) on the side near the left fixed plate (51). The rotating shaft (542) passes through the left fixed plate (51) and is rotatably connected to the left fixed plate (51). The other end of the rotating shaft (542) is rotatably connected to the right fixed plate (53). A roller (543) is fixedly sleeved on the outside of the rotating shaft (542).

6. The feeding mechanism for a barite crusher with pre-screening function according to claim 5, characterized in that: The screening mechanism (5) further includes a fixed frame (56) fixedly installed on the inner side wall of the first feeding plate (3), and a drive motor (57) is installed on the fixed frame (56). The output end of the drive motor (57) is fixedly connected to one of the gears (541).

7. The feeding mechanism of a barite crusher with pre-screening function according to claim 5, characterized in that: The partition (52) is inclined with the left side higher than the right side. The top of the partition (52) is provided with an arc-shaped groove (55) that is adapted to the roller (543). The roller (543) is located inside the arc-shaped groove (55) and is rotatably connected to the partition (52). The cross-sectional width of the left fixed plate (51), the partition (52) and the right fixed plate (53) connected to each other is equal to the diameter of the roller (543). The top of the right fixed plate (53) has an arc-shaped structure and the arc-shaped structure is consistent with the circumferential curvature of the roller (543).

8. The feeding mechanism for a barite crusher with pre-screening function according to claim 7, characterized in that: The number of the left fixed plate (51), partition plate (52), and right fixed plate (53) are all five. There are equal material feeding gaps between two adjacent partition plates (52) and between the outermost partition plate (52) and the protective side plate (2), so that the large pieces of barite material on the roller (543) fall down to the second material feeding plate (4) along the inclined direction of the partition plate (52) with the left side higher than the right side.

9. The feeding mechanism of a barite crusher with pre-screening function according to claim 1, characterized in that: The bottom of the partition (52) is fixedly connected to the top of the top plate (12). The filter hole (13) is located between two adjacent partitions (52) on the top plate (12) and between the outermost partition (52) and the protective side plate (2), so that the wastewater after cleaning flows back to the base body (11) through the filter hole (13).

10. The feeding mechanism of a barite crusher with pre-screening function according to claim 4, characterized in that: The cleaning assembly (6) also includes a pressure regulating valve (65) disposed on the water guide pipe (62). The water guide pipe (62) is installed on the outside of one of the protective side plates (2) by means of a fastener. The water distribution pipe (63) passes through one of the protective side plates (2) and its other end is fixedly connected to the inner wall of another protective side plate (2). There are six water distribution pipes (63). The high-pressure water spray head (64) at the lower end of the three water distribution pipes (63) near the first feeding plate (3) is tilted to the right. The high-pressure water spray head (64) at the lower end of the three water distribution pipes (63) near the second feeding plate (4) is tilted to the left. An inlet (7) is fixedly installed at the end of the two protective side plates (2) near the first feeding plate (3). Vibration motors (8) are installed on both sides of the inlet (7). A controller (9) is installed on the outer wall of the base body (11).

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