Gypsum acid-making rotary kiln material uniform distribution equipment

Abstract

The utility model provides a kind of gypsum acid-making rotary kiln material uniform distribution equipment, it is related to gypsum acid-making rotary kiln technical field, including rotary kiln body, rotary kiln body one end is provided with feed seat, and feed seat top is fixedly installed with feed hopper and is penetrated through, in the utility model, when using, staff pours material into feed pipe, material falls into filter frame, qualified material falls into feed seat by the through-hole of filter frame, and unqualified material is left in filter frame due to larger particle, at this time, staff starts motor, and the output end of motor drives cam to rotate, cam is contacted with moving plate, and moving plate is moved, two groups of first spring are stretched and compressed respectively, and moving plate drives mounting frame and filter frame to move by connecting rod, when cam is no longer contacted with moving plate, the elastic force of first spring promotes moving plate to move, and filter frame resets, to and fro reciprocation, filter frame swings back and forth to improve screening efficiency, so that material distribution is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of rotary kiln technology for gypsum-based acid production, and in particular to a uniform material distribution device for rotary kilns used in gypsum-based acid production. Background Technology

[0002] The rotary kiln for gypsum-based sulfuric acid production is the core thermal equipment in the process. Its main function is to decompose gypsum (especially industrial by-product gypsum, such as phosphogypsum and desulfurization gypsum) into sulfur dioxide (SO2) and calcium oxide (CaO) through high-temperature calcination. SO2 is the core raw material for subsequent sulfuric acid production, while CaO can be used as a raw material for building materials (such as cement retarders) or other chemical products, realizing the "resource utilization and reduction" of gypsum. In the complete process of gypsum-based sulfuric acid production, the rotary kiln plays a crucial role in the "raw material decomposition" stage. Upstream, it connects to gypsum pretreatment (drying, crushing, and impurity removal), and downstream, it connects to SO2 flue gas purification (dust removal, desulfurization, and demisting) and sulfuric acid production.

[0003] In existing technologies, when using a rotary kiln, materials are usually fed into the kiln from the feed hopper. However, the raw materials may become damp during storage or be compressed during transportation, forming large lumps. These lumps may block the feeding device, causing feeding interruption or a sudden decrease in local material quantity. This results in uneven material distribution, with some areas having a thicker material layer that heat cannot penetrate. At the same time, the surrounding fine materials are overheated due to the thin material layer, which in turn affects the processing quality of the materials. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where raw materials may form large lumps due to moisture during storage and compression during transportation, which may clog the feeding device and lead to uneven material distribution. Therefore, this invention proposes a material uniform distribution device for a gypsum-based acid rotary kiln.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a material uniform distribution device for a gypsum acid production rotary kiln, comprising a rotary kiln body, a feeding seat at one end of the rotary kiln body, a feeding hopper through and fixedly installed at the top of the feeding seat, a feeding pipe through and fixedly installed at the top of the feeding hopper, an installation frame inside the feeding hopper, a filter frame inside the installation frame, connecting rods fixedly installed on both sides of the outside of the installation frame, a moving plate through one end of the connecting rod through the feeding hopper and fixedly installed at one end, two first springs fixedly connected between the moving plate and the outer wall of the feeding hopper, a support plate fixedly installed on the outer wall of the feeding hopper, a motor fixedly installed on the outer wall of the support plate, and a cam fixedly installed at the output end of the motor through the support plate.

[0006] Preferably, an insert plate is fixedly installed on the outer wall of the filter frame, and a slot is formed on the outer wall of the insert plate.

[0007] Preferably, the inner wall of the mounting frame has a slot, the inner side wall of the slot has a storage groove, the inner wall of the storage groove has a threaded hole, a threaded rod is threadedly connected inside the threaded hole, a handle is fixedly installed at one end of the threaded rod, and a locking block is movably connected to the other end of the threaded rod.

[0008] Preferably, the outer wall of the feed hopper is hinged with a door.

[0009] Preferably, a fixing plate is fixedly installed on the top of the feed seat, an electric telescopic rod is fixedly installed on the outer wall of the fixing plate, the telescopic end of the electric telescopic rod passes through the fixing plate and is fixedly installed with a connecting plate, and two push plates are symmetrically installed on the outer wall of the connecting plate.

[0010] Preferably, two L-shaped plates are fixedly installed on the top of the feed seat, a second spring is fixedly installed on the top of the L-shaped plates, a pressure plate is fixedly installed on the top of the second spring, and a rubber pad is fixedly installed on the top of the pressure plate.

[0011] Preferably, a limiting rod is fixedly installed at the bottom of the pressure plate, and the bottom of the limiting rod is slidably inserted into the L-shaped plate.

[0012] Preferably, the feed seat is movably and fixedly equipped with a protective ring, and the inner wall of the protective ring is in contact with the outer wall of the rotary kiln body.

[0013] Preferably, a burner is fixedly installed on the outer wall of the feed seat, and the output end of the burner enters the interior of the feed seat.

[0014] Preferably, the outer wall of the card block is in contact with the inner wall of the storage slot.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, during use, the worker pours the material into the feed pipe, and the material falls into the filter frame. Qualified material falls into the feed seat through the through hole of the filter frame, while unqualified material remains in the filter frame due to its larger particle size. At this time, the worker starts the motor, and the output end of the motor drives the cam to rotate. The cam contacts the moving plate and pushes the moving plate to move. The two sets of first springs are stretched and compressed respectively. The moving plate drives the mounting frame and the filter frame to move through the connecting rod. When the cam is no longer in contact with the moving plate, the elastic force of the first spring pushes the moving plate to move, and the filter frame resets. The back-and-forth movement of the filter frame improves the screening efficiency and makes the material distribution more uniform.

[0017] 2. In this utility model, when the operator starts the electric telescopic rod, the telescopic end of the electric telescopic rod stretches and pushes the connecting plate to move, causing the two push plates to move. The inclined surface of the push plate contacts the bottom of the limiting rod, and the push plate pushes the limiting rod to rise. The pressure plate rises and causes the rubber pad to hit the outer wall of the feed hopper. The inclined surface of the feed hopper vibrates, which speeds up the speed at which the material leaves the feed hopper. Attached Figure Description

[0018] Figure 1 This utility model provides an overall three-dimensional view of a material uniform distribution device for a gypsum-based acid production rotary kiln;

[0019] Figure 2 This utility model provides a cross-sectional view of the feed seat of a material uniform distribution device for a gypsum-based acid production rotary kiln.

[0020] Figure 3 This utility model provides a three-dimensional view of the internal structure of the feed hopper of a rotary kiln material uniform distribution device for gypsum acid production.

[0021] Figure 4 This utility model provides a cross-sectional view of the installation frame of a material uniform distribution device for a gypsum-based acid rotary kiln.

[0022] Figure 5 This utility model presents a three-dimensional view of an L-shaped plate for a material uniform distribution device in a gypsum-based rotary kiln for acid production.

[0023] Legend: 1. Rotary kiln body; 2. Feed seat; 3. Protective ring; 4. Burner; 5. Feed hopper; 6. Feed pipe; 7. Door; 8. Fixed plate; 9. First spring; 10. Moving plate; 11. Connecting rod; 12. Mounting frame; 13. Filter frame; 14. Support plate; 15. Motor; 16. Cam; 17. Insert plate; 18. Slot; 19. Slot; 20. Storage slot; 21. Threaded hole; 22. Threaded rod; 23. Locking block; 24. Handle; 25. Electric telescopic rod; 26. Connecting plate; 27. Push plate; 28. L-shaped plate; 29. ​​Second spring; 30. Pressure plate; 31. Rubber pad; 32. Limiting rod. Detailed Implementation

[0024] 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.

[0025] 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 may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1, as Figures 1-5 As shown, this utility model provides a material uniform distribution device for a gypsum acid production rotary kiln, including a rotary kiln body 1. A feed seat 2 is provided at one end of the rotary kiln body 1. A feed hopper 5 is installed through and fixedly mounted on the top of the feed seat 2. A feed pipe 6 is installed through and fixedly mounted on the top of the feed hopper 5. An installation frame 12 is provided inside the feed hopper 5. A filter frame 13 is provided inside the installation frame 12. Connecting rods 11 are fixedly mounted on both sides of the outside of the installation frame 12. One end of the connecting rod 11 passes through the feed hopper 5 and is fixedly mounted on a moving plate 10. Two first springs 9 are fixedly connected between the moving plate 10 and the outer wall of the feed hopper 5. A support plate 14 is fixedly mounted on the outer wall of the feed hopper 5. A motor 15 is fixedly mounted on the outer wall of the support plate 14. The output end of the motor 15 passes through the support plate 14 and is fixedly mounted on a cam 16.

[0027] The effect achieved by the entire embodiment 1 is as follows: When in use, the staff pours the material into the feed pipe 6, and the material falls into the filter frame 13. The qualified material falls into the feed seat 2 through the through hole of the filter frame 13, while the unqualified material remains in the filter frame 13 due to its larger particles. At this time, the staff starts the motor 15. The output end of the motor 15 drives the cam 16 to rotate. The cam 16 contacts the moving plate 10 and pushes the moving plate 10 to move. The two sets of first springs 9 are stretched and compressed respectively. The moving plate 10 drives the mounting frame 12 and the filter frame 13 to move through the connecting rod 11. When the cam 16 is no longer in contact with the moving plate 10, the elastic force of the first spring 9 pushes the moving plate 10 to move, and the filter frame 13 resets. The back-and-forth swinging of the filter frame 13 improves the screening efficiency and makes the material distribution more uniform.

[0028] Example 2, as Figures 1-5 As shown, further, an insert plate 17 is fixedly installed on the outer wall of the filter frame 13. The insert plate 17 has a slot 18 on its outer wall. When the insert plate 17 enters the slot 19, the operator rotates the handle 24, and the locking block 23 enters the slot 18, thus fixing the filter frame 13.

[0029] Furthermore, the inner wall of the mounting frame 12 has a slot 19, the inner side wall of the slot 19 has a storage groove 20, the inner wall of the storage groove 20 has a threaded hole 21, the threaded hole 21 is threadedly connected to a threaded rod 22, one end of the threaded rod 22 is fixedly installed with a handle 24, and the other end of the threaded rod 22 is movably connected to a locking block 23. When the operator rotates the handle 24, the handle 24 drives the threaded rod 22 to rotate, causing the locking block 23 to move along the storage groove 20 and leave the locking groove 18. At this time, the operator pulls the filter frame 13, thus removing the insert plate 17.

[0030] Furthermore, the outer wall of the feed hopper 5 is hinged with a door 7, which makes it convenient for staff to remove the filter frame 13 from inside the feed hopper 5.

[0031] Furthermore, a fixed plate 8 is fixedly installed on the top of the feed seat 2, and an electric telescopic rod 25 is fixedly installed on the outer wall of the fixed plate 8. The telescopic end of the electric telescopic rod 25 passes through the fixed plate 8 and is fixedly installed with a connecting plate 26. Two push plates 27 are symmetrically installed on the outer wall of the connecting plate 26.

[0032] Furthermore, two L-shaped plates 28 are fixedly installed on the top of the feed seat 2. A second spring 29 is fixedly installed on the top of the L-shaped plate 28. A pressure plate 30 is fixedly installed on the top of the second spring 29. A rubber pad 31 is fixedly installed on the top of the pressure plate 30 to provide cushioning and prevent the pressure plate 30 from directly contacting the outer wall of the feed hopper 5, which would damage the feed hopper 5.

[0033] Furthermore, a limiting rod 32 is fixedly installed at the bottom of the pressure plate 30. The bottom of the limiting rod 32 is slidably inserted into the L-shaped plate 28 to limit the pressure plate 30 and prevent the pressure plate 30 from tilting.

[0034] Furthermore, the feed seat 2 is movably and fixedly equipped with a protective ring 3. The inner wall of the protective ring 3 is in contact with the outer wall of the rotary kiln body 1, which improves the sealing performance and prevents leakage.

[0035] Furthermore, a burner 4 is fixedly installed on the outer wall of the feed seat 2, and the output end of the burner 4 enters the interior of the feed seat 2 to heat the material.

[0036] Furthermore, the outer wall of the locking block 23 is in contact with the inner wall of the storage slot 20 to prevent the locking block 23 from rotating when the threaded rod 22 rotates.

[0037] The effect achieved by the entire embodiment 2 is that when the operator starts the electric telescopic rod 25, the telescopic end of the electric telescopic rod 25 stretches and pushes the connecting plate 26 to move, so that the two push plates 27 move. The inclined surface of the push plate 27 contacts the bottom of the limiting rod 32, and the push plate 27 pushes the limiting rod 32 to rise. The pressure plate 30 rises and causes the rubber pad 31 to hit the outer wall of the feed hopper 5. The inclined surface of the feed hopper 5 vibrates, which speeds up the speed at which the material leaves the feed hopper 5.

[0038] Working principle: During use, the operator pours the material into the feed pipe 6, and the material falls into the filter frame 13. Qualified material falls into the feed seat 2 through the through hole of the filter frame 13, while unqualified material remains in the filter frame 13 due to its larger particle size. At this time, the operator starts the motor 15. The output end of the motor 15 drives the cam 16 to rotate. The cam 16 contacts the moving plate 10 and pushes the moving plate 10 to move. The two sets of first springs 9 are stretched and compressed respectively. The moving plate 10 drives the mounting frame 12 and the filter frame 13 to move through the connecting rod 11. When the cam 16 is no longer in contact with the moving plate 10, the elastic force of the first spring 9 pushes the moving plate 10 to move, and the filter frame 13 resets. The back-and-forth swing of the filter frame 13 improves the screening efficiency and makes the material distribution more uniform. Meanwhile, the staff activates the electric telescopic rod 25. The telescopic end of the electric telescopic rod 25 extends and pushes the connecting plate 26 to move, causing the two push plates 27 to move. The inclined surface of the push plate 27 contacts the bottom of the limiting rod 32, and the push plate 27 pushes the limiting rod 32 to rise. The pressure plate 30 rises, causing the rubber pad 31 to hit the outer wall of the feed hopper 5. The inclined surface of the feed hopper 5 vibrates, accelerating the speed at which the material leaves the feed hopper 5. When the feeding is finished, the staff opens the box door 7 and rotates the handle 24. The handle 24 drives the threaded rod 22 to rotate, causing the locking block 23 to move along the storage groove 20 and leave the slot 18. At this time, the staff pulls the filter frame 13, thus pulling out the insert plate 17 to recover the unqualified material inside the filter frame 13. Finally, the filter frame 13 is reset, the insert plate 17 enters the slot 19, and the handle 24 is rotated in the opposite direction, causing the locking block 23 to enter the slot 18, thus fixing the filter frame 13 in place. This completes the cleaning process.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present 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 the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A material uniform distribution device for a gypsum-based acid production rotary kiln, comprising a rotary kiln body (1), characterized in that: The rotary kiln body (1) is provided with a feed seat (2) at one end. A feed hopper (5) is installed through and fixedly mounted on the top of the feed seat (2). A feed pipe (6) is installed through and fixedly mounted on the top of the feed hopper (5). An installation frame (12) is provided inside the feed hopper (5). A filter frame (13) is provided inside the installation frame (12). Connecting rods (11) are fixedly mounted on both sides of the outside of the installation frame (12). One end of the connecting rod (11) passes through the feed hopper (5) and is fixedly mounted with a moving plate (10). Two first springs (9) are fixedly connected between the moving plate (10) and the outer wall of the feed hopper (5). A support plate (14) is fixedly mounted on the outer wall of the feed hopper (5). A motor (15) is fixedly mounted on the outer wall of the support plate (14). The output end of the motor (15) passes through the support plate (14) and is fixedly mounted with a cam (16).

2. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 1, characterized in that: The filter frame (13) has a fixed insert plate (17) installed on its outer wall, and the insert plate (17) has a slot (18) on its outer wall.

3. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 1, characterized in that: The mounting frame (12) has a slot (19) on its inner wall, and a storage slot (20) is provided on the inner side wall of the slot (19). A threaded hole (21) is provided through the inner wall of the storage slot (20). A threaded rod (22) is threadedly connected inside the threaded hole (21). A handle (24) is fixedly installed at one end of the threaded rod (22), and a locking block (23) is movably connected at the other end of the threaded rod (22).

4. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 1, characterized in that: The outer wall of the feed hopper (5) is hinged with a box door (7).

5. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 1, characterized in that: The top of the feed seat (2) is fixedly installed with a fixed plate (8), and an electric telescopic rod (25) is fixedly installed on the outer wall of the fixed plate (8). The telescopic end of the electric telescopic rod (25) passes through the fixed plate (8) and is fixedly installed with a connecting plate (26). Two push plates (27) are symmetrically installed on the outer wall of the connecting plate (26).

6. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 1, characterized in that: The top of the feed seat (2) is fixedly installed with two L-shaped plates (28), the top of the L-shaped plates (28) is fixedly installed with a second spring (29), the top of the second spring (29) is fixedly installed with a pressure plate (30), and the top of the pressure plate (30) is fixedly installed with a rubber pad (31).

7. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 6, characterized in that: A limiting rod (32) is fixedly installed at the bottom of the pressure plate (30), and the bottom of the limiting rod (32) is slidably inserted into the L-shaped plate (28).

8. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 1, characterized in that: The feed seat (2) is movably and fixedly equipped with a protective ring (3), and the inner wall of the protective ring (3) is in contact with the outer wall of the rotary kiln body (1).

9. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 1, characterized in that: A burner (4) is fixedly installed on the outer wall of the feed seat (2), and the output end of the burner (4) enters the interior of the feed seat (2).

10. The material uniform distribution equipment for a gypsum-based acid production rotary kiln according to claim 3, characterized in that: The outer wall of the card block (23) is in contact with the inner wall of the storage slot (20).

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