Anhydrite conveying device

Abstract

The utility model discloses anhydrite conveying device, including the processing box of being located on the upper port of grinding equipment feed hopper and be used to the feeding machine of conveying anhydrite to processing box feed port, the inside slant of processing box is equipped with filter plate, the upper portion of filter plate is equipped with the crushing mechanism for the agglomerated anhydrite impact crushing, the side of processing box is located filter plate low end position still is equipped with heavy crushing discharge port, and heavy crushing discharge port is connected with the feed end of feeding machine. The utility model can make the gypsum block of meeting the grinding particle size requirement can fall into grinding equipment feed hopper through first filter area, and the gypsum block of not meeting the grinding particle size requirement is crushed through crushing mechanism, and the gypsum block of meeting the grinding particle size requirement after crushing can fall into grinding equipment feed hopper through second filter area, and the gypsum block of not meeting the grinding particle size requirement after crushing can return to the processing box inside through heavy crushing discharge port and feeding machine and carry out secondary crushing, improve the crushing efficiency and effect to the gypsum block, and there is no accumulation of gypsum block in processing box.

Description

Technical Field

[0001] This utility model belongs to the technical field of anhydrous gypsum production equipment, and in particular relates to an anhydrous gypsum conveying device. Background Technology

[0002] Anhydrous gypsum powder is prone to agglomerating into lumps in humid environments. Lumped gypsum powder needs to be ground again before use to ensure its effectiveness. However, the particle size of agglomerated gypsum powder lumps varies. Existing grinding equipment generally grinds the agglomerated gypsum powder lumps directly through the feed inlet using a conveyor belt. However, the grinding equipment is difficult to grind when the maximum particle size of the gypsum powder lumps is large. Moreover, the grinding equipment is generally not equipped with crushing equipment, and it is necessary to use crushing equipment for preliminary crushing before grinding can be carried out.

[0003] Publication No. CN117019332A discloses a process for grinding and refining anhydrous gypsum, including step one: gypsum blocks are conveyed to a processing box via a conveyor belt of a grinding equipment. The gypsum blocks are then conveyed to a shielding box, where shot blasting from a shot blasting mechanism impacts and crushes the gypsum blocks. The shot blasting and gypsum powder conveyed by the conveyor belt fall onto a filter screen. The gypsum powder falls through the filter screen, while the shot blasting is blocked. A pusher plate rotates reciprocally, continuously agitating the shot blasting within the filter screen through the spacer grooves, causing the gypsum powder to fall through the filter screen. The pusher plate rotates clockwise, pushing the shot blasting into the filter box under centrifugal force. This process effectively crushes and separates the gypsum blocks, producing smaller gypsum powder that can easily enter the grinding space of the grinding disc, facilitating the grinding of the gypsum blocks and improving grinding quality and efficiency. In its technical solution, on the one hand, its shot blasting mechanism directly crushes all the gypsum blocks that are transported in. However, some gypsum blocks have small particle sizes and do not need to be crushed, which reduces the crushing efficiency and effect. On the other hand, gypsum blocks that still do not meet the particle size requirements after being crushed by the shot blasting mechanism will accumulate inside the processing box and need to be cleaned in time, which reduces the grinding efficiency of the gypsum blocks. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anhydrous gypsum conveying device to solve the technical problems mentioned in the background art.

[0005] This utility model provides the following technical solution:

[0006] An anhydrous gypsum conveying device includes a processing box located at the upper end of the feed hopper of a grinding equipment and a feeder for conveying anhydrous gypsum to the feed inlet of the processing box. The feed inlet is located on the upper surface of the processing box. A filter plate is inclinedly arranged inside the processing box. A crushing mechanism for impact crushing agglomerated anhydrous gypsum is arranged above the middle of the filter plate. The crushing mechanism includes a shot blasting machine body. A shot lifting mechanism for recovering shot is also arranged above the lower end of the filter plate inside the processing box. A heavy crushing discharge port is also arranged on the side of the processing box at the lower end of the filter plate. The heavy crushing discharge port is connected to the feed end of the feeder.

[0007] Preferably, the filter plate includes a rectangular frame, the outer ring of which is connected to the inner wall of the processing box. A support area is provided in the middle of the inner ring of the rectangular frame, and a U-shaped support plate is provided on the support area. The front and rear ends of the U-shaped support plate are respectively connected to the front and rear ends of the support area. The shot blasting machine body is mounted on the upper end plate of the U-shaped support plate. A first filter area is provided on the left side of the inner ring of the rectangular frame, and a second filter area is provided on the right side of the inner ring of the rectangular frame. A first filter screen is provided in the first filter area, and a second filter screen is provided in the second filter area. The first filter screen and the second filter screen have the same mesh size.

[0008] Preferably, the lower end of the shot blasting machine body is provided with a shot blasting port, which penetrates the lower end face of the upper plate of the U-shaped support plate, and the upper end of the shot blasting machine body is provided with a shot feed bucket vertically upward.

[0009] Preferably, the projectile lifting mechanism includes a vertically arranged rotating shaft, an annular plate coaxially arranged at the lower end of the rotating shaft, the annular plate being connected to the rotating shaft via a connecting frame, and magnets symmetrically arranged at the left and right ends of the lower end face of the annular plate.

[0010] Preferably, the upper end of the rotating shaft is connected to the upper end face of the processing box via a bearing, and the upper end face of the processing box is also provided with a motor for driving the rotating shaft to rotate; the rotating shaft of the motor is coaxially connected to the upper end of the rotating shaft.

[0011] Preferably, an annular protective cage is also provided on the outer side of the annular plate, and the inner ring of the annular protective cage is connected to the rotating shaft through a connecting frame.

[0012] Preferably, an arc-shaped scraper is coaxially provided at the upper end of the projectile feed hopper. The arc-shaped scraper is located on the front side of the upper end of the projectile feed hopper. The distance between the upper end of the projectile feed hopper and the lower end face of the annular protective cage is greater than the diameter of the projectile. The distance between the upper end of the arc-shaped scraper and the lower end face of the annular protective cage is less than the radius of the projectile.

[0013] Preferably, the processing box is further provided with a guide plate. The right end of the guide plate is connected to the right inner wall of the processing box, and the left end of the guide plate is provided with a discharge port between it and the left inner side of the processing box. The upper surface of the guide plate is inclined, and the lower end of the upper surface of the guide plate is located above the upper end of the filter plate. The feed port is located above the upper end of the upper surface of the guide plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model discloses a waterless gypsum conveying device. By setting up a filter plate with a first filter zone and a second filter zone, and setting up a crushing mechanism between the first filter zone and the second filter zone, gypsum blocks that meet the grinding particle size requirements can fall into the feed hopper of the grinding equipment through the first filter zone, while gypsum blocks that do not meet the grinding particle size requirements are crushed by the crushing mechanism. After crushing, gypsum blocks that meet the grinding particle size requirements can fall into the feed hopper of the grinding equipment through the second filter zone, and gypsum blocks that do not meet the grinding particle size requirements can be returned to the processing box through the heavy crushing outlet and the feeding machine for secondary crushing. This improves the crushing efficiency and effect of gypsum blocks, and there is no accumulation of gypsum blocks in the processing box. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the filter plate structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the projectile lifting mechanism of this utility model.

[0020] Figure 4 This utility model Figure 3 Schematic diagram of section AA.

[0021] Figure 5 This is a schematic diagram of the arc-shaped scraper structure of this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model 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 utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-5 As shown, an anhydrous gypsum conveying device includes a processing box 2 located at the upper end of the feed hopper 1 of a grinding equipment and a feeding machine 3 for conveying anhydrous gypsum to the feed inlet 21 of the processing box. The feed inlet 21 is located on the upper end face of the processing box 2. A filter plate 4 is inclinedly arranged inside the processing box 2. A crushing mechanism for impact crushing agglomerated anhydrous gypsum is provided above the middle part of the filter plate 4. The crushing mechanism includes a shot blasting machine body 61. A shot lifting mechanism 7 for recovering shot is also provided above the lower end of the filter plate 4 inside the processing box 2. A heavy crushing discharge port 22 is also provided on the side of the processing box 2 at the lower end of the filter plate 4. The heavy crushing discharge port 22 is connected to the feed end of the feeding machine 3. By setting up a filter plate with a first filter zone and a second filter zone, and setting up a crushing mechanism between the first filter zone and the second filter zone, gypsum blocks that meet the grinding particle size requirements can fall into the feed hopper of the grinding equipment through the first filter zone, while gypsum blocks that do not meet the grinding particle size requirements are crushed by the crushing mechanism. After crushing, gypsum blocks that meet the grinding particle size requirements can fall into the feed hopper of the grinding equipment through the second filter zone, while gypsum blocks that do not meet the grinding particle size requirements can return to the processing box through the heavy crushing outlet and the feeding machine for secondary crushing. This improves the crushing efficiency and effect of gypsum blocks, and there is no accumulation of gypsum blocks in the processing box.

[0025] The filter plate 4 includes a rectangular frame 41. The outer ring of the rectangular frame 41 is connected to the inner wall of the processing box 2. A support area 43 is provided in the middle of the inner ring of the rectangular frame 41. A U-shaped support plate 5 is provided on the support area 43. The front and rear ends of the U-shaped support plate 5 are respectively connected to the front and rear ends of the support area 43. The shot blasting machine body 61 is located on the upper end plate of the U-shaped support plate 5. A first filter area 42 is provided on the left side of the inner ring of the rectangular frame 41, and a second filter area 44 is provided on the right side of the inner ring of the rectangular frame 41. A first filter screen is provided in the first filter area 42, and a second filter screen is provided in the second filter area 44. The first filter screen and the second filter screen have the same mesh size. The first filter screen is used to allow gypsum blocks that meet the grinding particle size requirements before crushing to fall into the feed hopper of the grinding equipment through the first filter area, thereby reducing the number of gypsum blocks to be crushed and improving crushing efficiency and quality. The second filter screen allows gypsum blocks that meet the grinding particle size requirements after crushing to fall into the feed hopper of the grinding equipment through the second filter zone. Gypsum blocks that do not meet the grinding particle size requirements after crushing can be returned to the processing box for secondary crushing through the heavy crushing outlet and the feeder.

[0026] The shot blasting machine body 61 has a shot blasting port at its lower end, which penetrates the lower end face of the upper plate of the U-shaped support plate 5. A shot feed hopper 62 is vertically arranged at the upper end of the shot blasting machine body 61. When the shot blasting machine body 61 is working, it sprays shot 9 onto the support area 43, impacting and breaking the plaster blocks passing through the support area. The shot then follows the broken plaster blocks into the second filtration area. The aperture of the second filtration area is smaller than the diameter of the shot. The shot is made of a material that can be magnetically attracted.

[0027] The projectile lifting mechanism 7 includes a vertically arranged rotating shaft 71. An annular plate 73 is coaxially arranged at the lower end of the rotating shaft 71. The annular plate 73 is connected to the rotating shaft 71 through a connecting frame 72. Magnets are symmetrically arranged at the left and right ends of the lower end face of the annular plate. The upper end of the rotating shaft 71 is connected to the upper end face of the processing box 2 through a bearing. The upper end face of the processing box 2 is also provided with a motor 75 for driving the rotating shaft 71 to rotate. The rotating shaft of the motor is coaxially connected to the upper end of the rotating shaft. The motor drives the rotating shaft and the annular plate 73 to rotate. The right end of the annular plate 73 is above the second filtration zone, and the left end of the annular plate 73 is above the shot feed hopper 62. The shot in the second filtration zone can be lifted by the magnetic attraction of the magnet on the annular plate 73 and attached to the lower end face of the annular protective cage 74. When the magnet area of ​​the annular protective cage 74 continues to rotate to above the shot feed hopper 62, the shot on the lower end face of the annular protective cage 74 is scraped off by the arc-shaped scraper. When the magnet moves away from the shot feed hopper 62, the shot falls into the shot feed hopper 62 and is circulated and shot-blasted by the shot blasting machine body. Some of the shot that is not magnetically attracted falls into the processing box through the feeding machine and eventually returns to the second filtration zone, which will not affect the operation of the equipment.

[0028] An annular protective cage 74 is also provided on the outer side of the annular plate 73, and the inner ring of the annular protective cage 74 is connected to the rotating shaft 71 through a connecting frame 72.

[0029] An arc-shaped scraper 63 is coaxially arranged at the upper end of the projectile feed hopper 62. The arc-shaped scraper 63 is located on the front side of the upper end of the projectile feed hopper 62. The distance between the upper end of the projectile feed hopper 62 and the lower end face of the annular protective cage 74 is greater than the diameter of the projectile 9, and the distance between the upper end of the arc-shaped scraper 63 and the lower end face of the annular protective cage 74 is less than the radius of the projectile 9.

[0030] The processing box 2 is also equipped with a guide plate 8. The right end of the guide plate 8 is connected to the right inner wall of the processing box. The left end of the guide plate is connected to the left inner wall of the processing box, and a discharge port is left between it and the left side of the processing box. The upper surface of the guide plate 8 is inclined, and the lower end of the upper surface of the guide plate 8 is located above the upper end of the filter plate 4. The feed port 21 is located above the upper end of the upper surface of the guide plate 8.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waterless gypsum conveying device, characterized in that: The equipment includes a processing box (2) located at the upper end of the feed hopper (1) of the grinding equipment and a feeder (3) for conveying anhydrous gypsum to the feed inlet (21) of the processing box. The feed inlet (21) is located on the upper end face of the processing box (2). A filter plate (4) is inclinedly arranged inside the processing box (2). A crushing mechanism for impact crushing of agglomerated anhydrous gypsum is arranged above the middle part of the filter plate (4). The crushing mechanism includes a shot blasting machine body (61). A shot lifting mechanism (7) for recovering shot is also arranged above the lower end of the filter plate (4) inside the processing box (2). A heavy crushing discharge port (22) is also arranged on the side of the processing box (2) at the lower end of the filter plate (4). The heavy crushing discharge port (22) is connected to the feed end of the feeder (3).

2. The anhydrous gypsum conveying device according to claim 1, characterized in that, The filter plate (4) includes a rectangular frame (41), the outer ring of the rectangular frame (41) is connected to the inner wall of the processing box (2), a support area (43) is provided in the middle of the inner ring of the rectangular frame (41), a gate-shaped support plate (5) is provided on the support area (43), the front and rear ends of the gate-shaped support plate (5) are respectively connected to the front and rear ends of the support area (43), and the shot blasting machine body (61) is located on the upper end plate of the gate-shaped support plate (5).

3. The anhydrous gypsum conveying device according to claim 2, characterized in that, The shot blasting machine body (61) is provided with a shot blasting port at the lower end, which penetrates the lower end face of the upper end plate of the gate-shaped support plate (5). The shot blasting machine body (61) is provided with a shot feed bucket (62) vertically upward at the upper end.

4. The anhydrous gypsum conveying device according to claim 2, characterized in that, The inner left side of the rectangular frame (41) is provided with a first filter area (42), and the inner right side of the rectangular frame (41) is provided with a second filter area (44).

5. The anhydrous gypsum conveying device according to claim 1, characterized in that, The projectile lifting mechanism (7) includes a vertically arranged rotating shaft (71), and an annular plate (73) is coaxially arranged at the lower end of the rotating shaft (71). The annular plate (73) is connected to the rotating shaft (71) through a connecting frame (72), and magnets are symmetrically arranged at the left and right ends of the lower end face of the annular plate.

6. The anhydrous gypsum conveying device according to claim 5, characterized in that, The upper end of the rotating shaft (71) is connected to the upper end face of the processing box (2) via a bearing. The upper end face of the processing box (2) is also provided with a motor (75) for driving the rotating shaft (71) to rotate.

7. The anhydrous gypsum conveying device according to claim 5, characterized in that, An annular protective cage (74) is also provided on the outer side of the annular plate (73), and the inner ring of the annular protective cage (74) is connected to the rotating shaft (71) through a connecting frame (72).

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