Gypsum powder screening device

Abstract

The utility model is applicable to the technical field of gypsum powder screening, and provides a gypsum powder screening device which comprises a box body and a screening box installed in the box body, and further comprises a swing mechanism and a material distributing mechanism, the screening box is movably installed in the box body through the swing mechanism, a feeding port is formed in the top face of the box body, and a discharging port is formed in the top face of the box body. A collecting box is movably inserted into the bottom of the side face of the box body, the material distributing mechanism is installed in the box body and located above the screening box, the material distributing mechanism comprises a material collecting hopper, a material discharging pipe, a spraying head and a driving unit, and the driving unit in the material distributing mechanism drives the spraying head to do horizontal reciprocating motion. The gypsum powder in the collecting hopper can be scattered on the screening surface of the screening box, and compared with the prior art that gypsum raw materials are concentrated on a local area of the screening surface, the screening surface is fully utilized, and the screening efficiency of the gypsum raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gypsum powder screening, in particular to a gypsum powder screening device. Background Art

[0002] The main chemical component of gypsum is calcium sulfate hydrate, which is a widely used industrial material and building material. The microporous structure and heating dehydration of gypsum and its products make them have excellent sound insulation, heat insulation and fire resistance. In the production process of gypsum powder, after the gypsum blocks are crushed into powder, the gypsum powder needs to be screened to control the particle size of the gypsum powder particles within the qualified use range.

[0003] At present, most methods of screening gypsum powder are to pour the crushed gypsum powder into a vibrating screen, and discharge the qualified gypsum powder from the sieve holes through the vibration of the vibrating screen to achieve screening. However, when using this method to vibrate and screen gypsum, usually all the gypsum powder to be screened is poured onto the screening surface. Since the gypsum powder accumulates in a local position on the screening surface, only a local screening surface can screen the gypsum powder when the screen vibrates, and the screening surface cannot be fully utilized. Therefore, there is a defect of low screening efficiency. Therefore, it is necessary to design corresponding technical solutions to solve the existing technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a gypsum powder screening device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gypsum powder screening device comprises a box body and a sieve box installed in the box body, and also comprises a swing mechanism and a material dividing mechanism. The sieve box is movably installed in the box body through the swing mechanism. The top surface of the box body is provided with a feed port, and a collecting box is movably inserted at the bottom of the side of the box body. The material dividing mechanism is installed in the box body and is located above the sieve box. The material dividing mechanism comprises a collecting hopper, a discharge pipe, a nozzle and a driving unit. The collecting hopper is fixedly installed in the box body and is connected with the feed port. A nozzle is installed at the bottom of the collecting hopper through the discharge pipe. The discharge pipe is a corrugated hose. The driving unit is used to provide power for the horizontal reciprocating motion of the nozzle.

[0007] As a further solution of the utility model: the driving unit includes a fixing part fixedly mounted outside the nozzle and a reciprocating screw and a fixed rod installed in parallel on both sides of the fixing part; the reciprocating screw is rotatably arranged in a box body, a reciprocating moving part adapted thereto is installed on the reciprocating screw, the reciprocating moving part is fixedly connected to the side of the fixing part, the fixed rod is fixedly installed in the box body, and a slider is movably installed on the fixed rod, and the slider is fixedly connected to the side of the fixing part.

[0008] As a further solution of the utility model: the swing mechanism includes a rotating shaft, a fixed plate and a driving gear, a pair of fixed plates are symmetrically fixedly installed on the bottom surface of the screen box, the fixed plates are provided with strip holes, and a plurality of gear teeth are symmetrically arranged on the upper and lower inner walls of the strip holes, the rotating shaft passes through the two strip holes and is rotatably arranged in the box body, the rotating shaft is driven by a motor arranged outside the box body, and a pair of driving gears are fixedly installed on the rotating shaft, the driving gears are half gears, and the driving gears are alternately meshed with the gear teeth on both sides of the inner walls of the strip holes.

[0009] As a further solution of the utility model: the rotating shaft is connected to the reciprocating screw through a pulley transmission group.

[0010] As a further solution of the utility model: a discharging auger is rotatably arranged in the collecting hopper, and the discharging auger is driven by a driving element installed on the box body.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a material dividing mechanism, in which a driving unit can disperse and spread the gypsum powder in the collecting hopper onto the screening surface of the screen box during the process of driving the nozzle to move horizontally back and forth. Compared with the prior art in which the gypsum raw materials are concentrated in a local area of ​​the screening surface, the screening surface is fully utilized and the screening efficiency of the gypsum raw materials is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall stereogram of a gypsum powder screening device;

[0014] Figure 2 It is a schematic diagram of the internal structure of a gypsum powder screening device;

[0015] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0016] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0017] In the figure: 1-box, 2-screen box, 3-feeding port, 4-collecting box, 5-collecting hopper, 6-discharge pipe, 7-sprinkler, 8-reciprocating screw, 9-fixing part, 10-fixing rod, 11-reciprocating moving part, 12-slider, 13-rotating shaft, 14-fixing plate, 15-driving gear, 16-strip hole, 17-gear tooth, 18-pulley transmission group, 19-discharging auger. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods. Example

[0019] See also Figure 1-4 , a gypsum powder screening device, comprising a box body 1 and a screen box 2 installed in the box body 1, and also comprising a swing mechanism and a dividing mechanism. The screen box 2 is movably installed in the box body 1 through the swing mechanism, and a feed port 3 is arranged on the top surface of the box body 1. A collecting box 4 is movably inserted at the bottom of the side of the box body 1, and the dividing mechanism is installed in the box body 1 and is located above the screen box 2. The dividing mechanism comprises a collecting hopper 5, a discharge pipe 6, a nozzle 7 and a driving unit. The collecting hopper 5 is fixedly installed in the box body 1 and is connected with the feed port 3. A nozzle 7 is installed at the bottom of the collecting hopper 5 through the discharge pipe 6. The discharge pipe 6 is a corrugated hose, and the driving unit is used to provide power for the horizontal reciprocating motion of the nozzle 7. By setting the dividing mechanism, the driving unit in the dividing mechanism can disperse and spread the gypsum powder in the collecting hopper 5 on the screening surface of the screen box 2 during the process of driving the nozzle 7 to reciprocate horizontally. Compared with the prior art in which the gypsum raw materials are concentrated in a local area of ​​the screening surface, the screening surface is fully utilized and the screening efficiency of the gypsum raw materials is improved.

[0020] Among them, the driving unit includes a fixing part 9 fixedly mounted outside the nozzle 7 and a reciprocating screw 8 and a fixed rod 10 installed in parallel on both sides of the fixing part 9. The reciprocating screw 8 is rotatably arranged in the box body 1, and a reciprocating moving part 11 adapted to it is installed on the reciprocating screw 8. The reciprocating moving part 11 is fixedly connected to the side of the fixing part 9. The fixed rod 10 is fixedly installed in the box body 1, and a slider 12 is movably installed on the fixing rod 10, and the slider 12 is fixedly connected to the side of the fixing part 9.

[0021] Among them, the swing mechanism includes a rotating shaft 13, a fixed plate 14 and a driving gear 15. A pair of fixed plates 14 are symmetrically fixedly installed on the bottom surface of the screen box 2. A strip hole 16 is opened on the fixed plate 14. A plurality of gear teeth 17 are symmetrically arranged on the upper and lower inner walls of the strip hole 16. The rotating shaft 13 passes through the two strip holes 16 and is rotatably arranged in the box body 1. The rotating shaft 13 is driven by a motor arranged outside the box body 1, and a pair of driving gears 15 are fixedly installed on the rotating shaft 13. The driving gear 15 is a half gear, and the driving gear 15 is alternately meshed with the gear teeth 17 on both sides of the inner wall of the strip hole 16.

[0022] Preferably, the rotating shaft 13 is connected to the reciprocating screw 8 through a pulley transmission group 18. With this arrangement, there is no need to provide an additional driving element to drive the rotation of the reciprocating screw 8, thereby reducing the power consumed when the device is running.

[0023] Specifically, when the motor drives the rotating shaft 13 to rotate, the driving gear 15 on the rotating shaft 13 is alternately meshed with the gear teeth 17 on both sides of the inner wall of the strip hole 16, and the screen box 2 connected to the fixed plate 14 is horizontally reciprocated and shaken, thereby realizing horizontal screening of the screen box 2. In addition, during the rotation of the rotating shaft 13, the reciprocating screw 8 rotates together through the transmission of the pulley transmission group 18. During the process of being driven to rotate, the reciprocating screw 8 cooperates with the limiting of the fixed rod 10 and the slider 12, so that the fixing part 9 connected to the nozzle 7 reciprocates along the axial direction of the reciprocating screw 8, so that the gypsum powder sprayed by the nozzle 7 can be dispersed and spread on the screening surface of the screen box 2.

[0024] In addition, in order to ensure that the gypsum powder in the collecting hopper 5 can be stably sprayed from the nozzle 7 into the sieve box 2, a discharging auger 19 is also rotatably arranged in the collecting hopper 5 in the present application, and the discharging auger 19 is driven by a driving element installed on the box body 1. In the process of screening the gypsum powder, the discharging auger 19 is driven to rotate, so that the gypsum powder in the collecting hopper 5 can be evenly transported to the discharge pipe 6 and sprayed from the nozzle 7 into the sieve box 2, thereby avoiding the phenomenon of gypsum powder being blocked at the discharge port of the collecting hopper 5, and ensuring that the gypsum powder can be stably sprayed from the nozzle 7 into the sieve box 2.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gypsum powder screening device, comprising a box (1) and a screening box (2) installed in the box (1), characterized in that: The invention also comprises a swing mechanism and a material distribution mechanism, wherein the sieve box (2) is movably mounted in the box body (1) via the swing mechanism, a feed port (3) is arranged on the top surface of the box body (1), a collecting box (4) is movably inserted at the bottom of the side of the box body (1), the material distribution mechanism is mounted in the box body (1) and is located above the sieve box (2), the material distribution mechanism comprises a collecting hopper (5), a discharge pipe (6), a nozzle (7) and a driving unit, the collecting hopper (5) is fixedly mounted in the box body (1) and is connected to the feed port (3), a nozzle (7) is mounted at the bottom of the collecting hopper (5) via the discharge pipe (6), the discharge pipe (6) is a corrugated hose, and the driving unit is used to provide power for the horizontal reciprocating motion of the nozzle (7).

2. The gypsum powder screening device according to claim 1, characterized in that: The driving unit comprises a fixing member (9) fixedly sleeved outside the nozzle (7) and a reciprocating screw (8) and a fixing rod (10) mounted in parallel on both sides of the fixing member (9); the reciprocating screw (8) is rotatably mounted in the housing (1); a reciprocating moving member (11) adapted thereto is mounted on the reciprocating screw (8); the reciprocating moving member (11) is fixedly connected to a side surface of the fixing member (9); the fixing rod (10) is fixedly mounted in the housing (1); a slider (12) is movably mounted on the fixing rod (10); the slider (12) is fixedly connected to a side surface of the fixing member (9).

3. The gypsum powder screening device according to claim 2, characterized in that: The swing mechanism comprises a rotating shaft (13), a fixing plate (14) and a driving gear (15); a pair of fixing plates (14) are symmetrically fixedly mounted on the bottom surface of the screen box (2); a strip hole (16) is formed on the fixing plate (14); a plurality of gear teeth (17) are symmetrically arranged on the inner walls of the strip hole (16) on both sides; the rotating shaft (13) passes through the two strip holes (16) and is rotatably arranged in the box body (1); the rotating shaft (13) is driven by a motor arranged outside the box body (1); a pair of driving gears (15) are fixedly mounted on the rotating shaft (13); the driving gears (15) are half gears, and the driving gears (15) are alternately meshed with the gear teeth (17) on both sides of the inner wall of the strip hole (16).

4. The gypsum powder screening device according to claim 3, characterized in that: The rotating shaft (13) is connected to the reciprocating screw (8) through a pulley transmission group (18).

5. The gypsum powder screening device according to claim 4, characterized in that: A discharging auger (19) is also rotatably arranged in the collecting hopper (5), and the discharging auger (19) is driven by a driving element installed on the box body (1).

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