A calcite processing screening device

Abstract

The utility model provides a kind of screening device for calcite processing, including box, it is equipped with the screening frame that is rectangularly arranged and both sides open in box, screening frame is equipped with screen hole on four faces, and the discharge hopper for discharging to screening frame is fixed on box;Two movable plates that can be mutually close to are equipped in box, screening frame is located between two movable plates, first cleaning rod that can be inserted into screen hole on screening frame is fixed on movable plate, two-way screw rod that is respectively threadedly connected with two movable plates is equipped in box, first motor and second motor for respectively driving screening frame and two-way screw rod rotation are equipped on box;Cleaning plate that can reciprocate towards two sides of screening frame is equipped in screening frame.The utility model can timely automatically dredge screen hole on screening frame, and by screening frame four faces alternately located screening frame bottom, can quickly replace the side that is blocked, continue to calcite screening, improve the screening efficiency of calcite.

Description

Technical Field

[0001] This utility model relates to the technical field of calcite screening devices, and in particular to a screening device for calcite processing. Background Technology

[0002] Calcite is a calcium carbonate mineral and the most common natural calcium carbonate mineral. Therefore, calcite is a very widely distributed mineral. As a stable form of calcium carbonate, calcite is usually soft, white or gray, and transparent. Its crystal forms are diverse, including needle-like, tabular, granular, massive, fibrous, and stalactitic.

[0003] After calcite is crushed or ground, it needs to be screened according to its size. Different industries have completely different standards for the particle size (size) of calcite. However, during the screening process, some larger calcite particles may clog the screen holes, requiring staff to stop the machine for cleaning. The cleaning process is cumbersome and reduces the screening efficiency of calcite. Utility Model Content

[0004] This utility model discloses a screening device for calcite processing, which solves the problem that after calcite blocks the screen holes on the screen plate, the machine needs to be stopped for cleaning, which leads to a decrease in calcite screening efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A sieving device for calcite processing includes a housing with a rectangular sieving frame open on both sides. Each of the four sides of the sieving frame has sieve holes. A hopper for discharging material into the sieving frame is fixed to the housing. Two movable plates that can move closer together are located inside the housing, with the sieving frame positioned between them. A first cleaning rod that can be inserted into the sieve holes on the sieving frame is fixed to the movable plates. A bidirectional lead screw is threadedly connected to both movable plates inside the housing. A first motor and a second motor are mounted on the housing to drive the sieving frame and the bidirectional lead screw to rotate. A cleaning plate that can reciprocate towards both sides of the sieving frame is located inside the sieving frame.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] After calcite is discharged into the screening frame through the discharge end of the hopper, the first motor drives the screening frame to rotate repeatedly in small amplitudes, causing the calcite to move repeatedly within the frame so that it can fall through the screen holes and complete the screening operation. Then, the cleaning plate moves towards one side of the screening frame, pushing larger calcite particles out of the frame. When the screen holes at the bottom of the screening frame become clogged after long-term use, the first motor can be driven to rotate the screening frame, causing the other side adjacent to the bottom of the screening frame to become clogged. At the bottom of the screening frame, the calcite continues to be screened. After the calcite screening is completed, the second motor can drive the bidirectional lead screw to rotate, causing the moving plate to move the first cleaning rod toward the screening frame. When the first cleaning rod is inserted into the screen hole on the screening frame, it can clear the screen hole. This utility model can automatically clear the screen hole on the screening frame in a timely manner, and by having the four sides of the screening frame alternately located at the bottom of the screening frame, the blocked side can be quickly replaced to continue screening the calcite, thus improving the screening efficiency of calcite. Attached Figure Description

[0009] Figure 1 This is a front view structural diagram of the present invention;

[0010] Figure 2 This is a cross-sectional structural diagram of the box body of this utility model;

[0011] Figure 3 This is a side view of the sieve frame of this utility model.

[0012] Figure 4 This is a side view of the movable plate of this utility model.

[0013] Figure 5 for Figure 1 A magnified structural diagram at point A.

[0014] In the diagram: 1. Box body; 11. Hopper; 12. Vibrator; 13. First discharge pipe; 14. Second discharge pipe; 15. Protective plate; 2. Screening frame; 21. Magnet; 22. Cleaning plate; 23. Round block; 24. Driven gear; 25. Round plate; 26. Fixing ring; 27. Fixing rod; 28. Slag-proof plate; 3. First motor; 31. Drive gear; 4. Moving plate; 41. First cleaning rod; 5. Two-way lead screw; 51. Second motor; 52. Connecting plate; 6. Third electric telescopic rod; 61. Sealing plate; 7. Second electric telescopic rod; 71. Electromagnet; 8. Screening plate; 81. Inclined plate; 82. Guide plate; 83. Baffle; 9. First electric telescopic rod; 91. Lifting plate; 92. Second cleaning rod. Detailed Implementation

[0015] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this utility model provides a screening device for calcite processing, including a housing 1. The housing 1 has a rectangular screening frame 2 with open sides. Screen holes are opened on all four sides of the screening frame 2. A hopper 11 for discharging material into the screening frame 2 is fixed on the housing 1. The housing 1 has two movable plates 4 that can move closer to each other. The screening frame 2 is located between the two movable plates 4. A first cleaning rod 41 that can be inserted into the screen holes on the screening frame 2 is fixed on the movable plates 4. The housing 1 has a bidirectional screw 5 that is threadedly connected to the two movable plates 4 respectively. The housing 1 has a first motor 3 and a second motor 51 for driving the screening frame 2 and the bidirectional screw 5 to rotate respectively. The screening frame 2 has a cleaning plate 22 that can move back and forth towards both sides of the screening frame 2.

[0017] First embodiment: The inner diameter of the screen holes on all four sides of the screening frame 2 is the same, and both the first motor 3 and the second motor 51 are servo motors; when calcite enters the screening frame 2 through the discharge end of the hopper 11, the first motor 3 drives the screening frame 2 to rotate repeatedly in small amplitudes. Calcite with a qualified particle size falls downwards through the screen holes, while unqualified calcite remains inside the screening frame 2. After the calcite screening is completed, the cleaning plate 22 moves towards the open side of the screening frame 2 to push out the unqualified calcite; when the screening frame 2 is screening calcite, if the screen holes at the bottom of the screening frame 2 become blocked... Then, the first motor 3 can drive the screening frame 2 to rotate 90°, so that another vertical surface adjacent to the bottom surface of the screening frame 2 is located at the bottom of the screening frame 2, and the screening of calcite can continue without stopping the machine; when the calcite screening is completed, the second motor 51 drives the bidirectional lead screw 5 to rotate (the bidirectional lead screw 5 is rotatably connected in the housing 1), so that the two moving plates 4 respectively drive the first cleaning rod 41 (a set of screen holes is provided on each of the four sides of the screening frame 2, and the number of the first cleaning rod 41 on the moving plate 4 is the same as the number of screen holes on one side of the screening frame 2) to insert into the screen hole, and complete the unblocking of the screen hole.

[0018] Second embodiment: The inner diameter of the sieve holes at the bottom of the sieve frame 2 is the same as that of the sieve holes on a vertical plane. The inner diameters of the sieve holes on the other two planes of the sieve frame 2 are the same and larger than those on the previous two planes. Meanwhile, no sieve holes are opened at the four right angles of the inner wall of the sieve frame 2 (e.g., ...). Figure 2 (As shown in the image), this prevents calcite from being discharged through the sieve holes on the vertical surface of sieve frame 2 during screening; for ease of description, it is referred to as... Figure 1As shown in the diagram, the inner diameter of the sieve holes on the bottom and front surfaces of the sieve frame 2 is the same, as is the inner diameter of the sieve holes on the top and back surfaces. By alternating the use of the bottom and front surfaces of the sieve frame 2, the sieve hole blockage that causes a decrease in calcite screening efficiency is effectively avoided. Similarly, alternating the use of the top and back surfaces of the sieve frame 2 can also prevent the sieve holes from being blocked and affecting the screening efficiency. Furthermore, two different inner diameter sieve holes are provided so that the sieve holes with larger or smaller inner diameters can be used according to the actual situation of calcite screening.

[0019] like Figure 1As shown, a screening plate 8, arranged in a V-shape and located below the screening frame 2, is fixed to one side of the box body 1. The two end faces of the screening plate 8 are fixed to the same side of the box body 1. A first electric telescopic rod 9 is fixed to the bottom of the box body 1. A lifting plate 91 is fixed to the telescopic end of the first electric telescopic rod 9. A second cleaning rod 92, which can be inserted into the screening holes on the screening plate 8, is fixed to the lifting plate 91. A first discharge pipe 13 is connected to the bottom of the box body 1, and a second discharge pipe 14, corresponding to the inner side of the screening plate 8, is also connected to the box body 1. An inclined plate 81, fixed to the inner wall of the box body 1, is provided between the screening plate 8 and the screening frame 2. A guide plate 82, fixed to the inner wall of the other side of the box body 1, is provided between the inclined plate 81 and the screening frame 2. A discharge pipe, corresponding to the discharge end of the guide plate 82, is connected to the box body 1. A baffle 83, close to the first discharge pipe 13 and connected to the bottom of the box body 1, is fixed to the bottom of the screening plate 8. The screening plate 8 has a set of screening holes on both the upper and lower plates, and the two sets of screening holes correspond to each other. The second cleaning rod 92 also has a set, and its diameter is the same as the inner diameter of the screening holes. When secondary screening of the calcite after screening by the screening frame 2 is not required, the top of the second cleaning rod 92 can be inserted into the screening hole on the upper plate of the screening plate 8, flush with the top surface of the screening plate 8, ensuring that the screened calcite can slide down through the screening plate 8 and be discharged through the first discharge pipe 13. When secondary screening of the calcite after screening by the screening frame 2 is required, the telescopic end of the first electric telescopic rod 9 drives the second cleaning rod 92 downwards via the lifting plate 91, sealing the screening holes on the lower plate of the screening plate 8. After screening, a secondary screening of calcite can be completed. Calcite that does not pass through the screening holes on the screening plate 8 slides down and is discharged through the first discharge pipe 13, while calcite that passes through the screening holes on the screening plate 8 is discharged through the second discharge pipe 14. The inclined plate 81 is distributed to the left and right of the screening plate 8 so that the inclined plate 81 can support the calcite after screening by the screening frame 2 and then let the calcite fall to the highest point on the top surface of the screening plate 8, so that the calcite can be fully screened by the screening plate 8 when it slides down. The guide plate 82 is also inclined and located above the right side of the inclined plate 81. Larger calcite particles pushed out by the cleaning plate 22 in the screening frame 2 fall on the guide plate 82 and are then discharged through the discharge pipe. The first discharge pipe 13 is distributed to the left and right of the screening plate 8, and the baffle 83 can prevent calcite that passes through the screening holes on the screening plate 8 from falling towards the first discharge pipe 13.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a drive gear 31 is fixed on the shaft of the first motor 3. A circular block 23 is fixedly connected to the screening frame 2, and a driven gear 24 that meshes with the drive gear 31 is fixed on the circular block 23. A circular plate 25 is fixedly connected to the screening frame 2, and a fixed ring 26 is rotatably connected to the circular plate 25. A fixed rod 27 connected to the inner wall of the box 1 is fixed on the fixed ring 26. There are two circular plates 25, which are symmetrically distributed from left to right. Two slag-preventing plates 28 are fixedly connected to the screening frame 2, which are symmetrically distributed from left to right and located between the two circular plates 25. The screen holes on the screening frame 2 are located between the two slag-preventing plates 28. Two connecting plates 52 are threadedly connected to the bidirectional lead screw 5. The two connecting plates 52 are fixed to the two moving plates 4 respectively, and the connecting plates 52 are slidably connected to the inner wall of the box 1. After the first motor 3 starts the drive gear 31 to rotate, the driven gear 24 can drive the screening frame 2 to rotate through the round block 23. The round plate 25, the fixed ring 26 and the fixed rod 27 cooperate with each other to increase the stability of the screening frame 2. The anti-slag plate 28 can prevent calcite from getting close to the fixed ring 26 or the driven gear 24 and play a limiting role in preventing calcite from falling downwards. After the second motor 51 drives the bidirectional lead screw 5 to rotate, the connecting plate 52 can drive the moving plate 4 to move, so that the first cleaning rod 41 moves along with it.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the cleaning plate 22 has a circular hole through which the discharge end of the hopper 11 passes. A magnet 21 is fixed to the side of the screening frame 2 near the hopper 11. The cleaning plate 22 is made of magnetic material and is in contact with the magnet 21. A second electric telescopic rod 7 passes through the side of the housing 1 near the hopper 11. An electromagnet 71 is fixed to the telescopic end of the second electric telescopic rod 7 via a fixing plate. A third electric telescopic rod 6 is fixed to the side of the housing 1 away from the electromagnet 71. A sealing plate 61 is fixed to the telescopic end of the third electric telescopic rod 6 to block one side of the screening frame 2. A vibrator 12 is fixed inside the housing 1. The vibrating end of the vibrator 12 is connected to the discharge end of the hopper 11. An opening is provided on one side of the housing 1. A protective plate 15 is bolted to the housing 1 to block the opening. The protective plate 15 can be removed when the inside of the housing 1 needs to be inspected. The discharge end of the hopper 11 corresponds to the center of the inner side of the screening frame 2. After the magnet 21 attracts the cleaning plate 22, the cleaning plate 22 can be rotated when the screening frame 2 rotates. The discharge end of the hopper 11 passes through the round hole on the cleaning plate 22, so it will not affect the normal rotation of the cleaning plate 22. When it is necessary to push out the calcite with a larger particle size in the screening frame 2, the second electric telescopic rod 7 can be activated. At the same time, the electromagnet 71 is energized. When the electromagnet 71 and the cleaning plate 22 are engaged, the electromagnet 71 can be activated. After contact, the cleaning plate 22 can be attracted and pushed towards the sealing plate 61 (the circumference of the cleaning plate 22 is in contact with the inner wall of the screening frame 2). The extension end of the third electric telescopic rod 6 drives the sealing plate 61 away from the screening frame 2, opening the opening of the screening frame 2. The second electric telescopic rod 7 adopts a three-section telescopic rod so that the cleaning plate 22 can push the larger calcite particles from inside the screening frame 2 to outside the screening frame 2, completing the cleaning of the calcite inside the screening frame 2. Subsequently, the electromagnet 71 attracts the cleaning plate 22 and drives the cleaning plate 22 to return to its original position. After the vibrator 12 is started, the discharge end of the hopper 11 can vibrate, better discharging the calcite.

[0022] The first electric telescopic rod 9, the second electric telescopic rod 7, the third electric telescopic rod 6, the first motor 3, the second motor 51, the electromagnet 71, and the vibrator 12 are all controlled by an external control panel. The control program can be set within the external control panel, which will not be elaborated here. Furthermore, when the first motor 3 drives the screening frame 2 to rotate forward and backward with small amplitudes, the rotation amplitude is controlled at 15° (this can also be adjusted according to actual conditions). After the first motor 3 is turned off, the screening frame 2 returns to its original position (e.g., ...). Figure 2 (as shown in the image); and when the first motor 3 drives the screening frame 2 to rotate, so that when one vertical surface of the screening frame 2 is at the bottom of the screening frame 2, the screening frame 2 is driven to rotate 90°, so as to ensure that the screen holes on the vertical surface of the screening frame 2 can be precisely aligned with the first cleaning rod 41.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A screening device for calcite processing, comprising a housing (1), characterized in that: The box (1) is provided with a rectangular screening frame (2) with open sides. Screen holes are provided on all four sides of the screening frame (2). A hopper (11) for discharging material into the screening frame (2) is fixed on the box (1). The box (1) is provided with two movable plates (4) that can move close to each other. The screening frame (2) is located between the two movable plates (4). A first cleaning rod (41) that can be inserted into the screen hole of the screening frame (2) is fixed on the movable plate (4). The box (1) is provided with a double-acting screw (5) that is threaded to the two movable plates (4). The box (1) is provided with a first motor (3) and a second motor (51) for driving the screening frame (2) and the double-acting screw (5) to rotate. A cleaning plate (22) that can move back and forth toward both sides of the screening frame (2) is provided inside the screening frame (2).

2. The sieving device for calcite processing according to claim 1, characterized in that: A screening plate (8) located below the screening frame (2) and arranged in a V-shape is fixed on one side of the box (1). The two end faces of the screening plate (8) are fixed to the same side inside the box (1). A first electric telescopic rod (9) is fixed at the bottom of the box (1). A lifting plate (91) is fixed at the telescopic end of the first electric telescopic rod (9). A second cleaning rod (92) that can be inserted into the screening hole on the screening plate (8) is fixed on the lifting plate (91). A first discharge pipe (13) is connected to the bottom of the box (1). A second discharge pipe (14) corresponding to the inner side of the screening plate (8) is also connected to the box (1).

3. The sieving device for calcite processing according to claim 2, characterized in that: An inclined plate (81) fixed on the inner wall of the box (1) is provided between the screening plate (8) and the screening frame (2). A guide plate (82) fixed on the inner wall of the other side of the box (1) is provided between the inclined plate (81) and the screening frame (2). A discharge pipe corresponding to the discharge end of the guide plate (82) is connected to the box (1). A baffle (83) is fixed at the bottom of the screening plate (8) near the first discharge pipe (13) and connected to the bottom of the box (1).

4. A sieving device for calcite processing according to claim 1, characterized in that: A drive gear (31) is fixed on the shaft of the first motor (3), and a fixedly connected round block (23) is fitted on the screening frame (2). A driven gear (24) that meshes with the drive gear (31) is fixed on the round block (23). A fixedly connected round plate (25) is fitted on the screening frame (2), and a fixed ring (26) is rotatably connected on the round plate (25). A fixed rod (27) that is connected to the inner wall of the box (1) is fixed on the fixed ring (26).

5. A sieving device for calcite processing according to claim 4, characterized in that: The number of the circular plates (25) is two, and the two circular plates (25) are symmetrically distributed from left to right. Two fixedly connected anti-slag plates (28) are fitted on the screening frame (2). The two anti-slag plates (28) are symmetrically distributed from left to right and located between the two circular plates (25). The screen holes on the screening frame (2) are located between the two anti-slag plates (28).

6. A sieving device for calcite processing according to claim 1, characterized in that: The bidirectional lead screw (5) is threaded with two connecting plates (52), which are fixed to two moving plates (4) respectively. The connecting plates (52) are slidably connected to the inner wall of the box (1).

7. A sieving device for calcite processing according to claim 1, characterized in that: The cleaning plate (22) has a round hole through which the discharge end of the hopper (11) passes. A magnet (21) is fixed on the side of the screening frame (2) near the hopper (11). The cleaning plate (22) is made of magnetic material and is in contact with the magnet (21). A second electric telescopic rod (7) passes through the side of the box (1) near the hopper (11). An electromagnet (71) is fixed to the telescopic end of the second electric telescopic rod (7) through a fixing plate.

8. A sieving device for calcite processing according to claim 7, characterized in that: A third electric telescopic rod (6) is fixed on the side of the box (1) away from the electromagnet (71), and a sealing plate (61) is fixed at the telescopic end of the third electric telescopic rod (6) to block one side of the screening frame (2).

9. A sieving device for calcite processing according to claim 1, characterized in that: A vibrator (12) is fixed inside the housing (1), and the vibrating end of the vibrator (12) is connected to the discharge end of the hopper (11).

Images