A drying equipment for an evaporation causticizing system

Abstract

This utility model discloses a drying device for an evaporation causticization system, belonging to the field of evaporation causticization system technology. It includes a frame, with a cylinder mounted on the frame. The cylinder comprises two fixed cylinders fixedly mounted on the frame and a rotating cylinder rotatably mounted between the two fixed cylinders. Fixed blocks are fixedly mounted on the fixed cylinders, and a rotating shaft is rotatably mounted between the two fixed blocks. A power component is fixedly mounted on the side of one of the fixed blocks, with its output end fixedly connected to the rotating shaft. A gear is fixedly mounted on the outer surface of the rotating shaft. By using the power component to drive the rotating cylinder and the screen cylinder to rotate, and by using the power component to drive the rotating shafts three and four to rotate the agitator blades, the material inside the screen cylinder undergoes double tumbling. This effectively prevents material accumulation that could lead to uneven drying inside and outside the screen cylinder, significantly improving the uniformity of material drying and ensuring product quality.

Description

Technical Field

[0001] This utility model belongs to the field of evaporation causticization system technology, specifically relating to a drying equipment for an evaporation causticization system. Background Technology

[0002] The evaporation-causticization system is mainly used for the treatment of black liquor from pulping and the preparation of sodium hydroxide. Its core process involves combining evaporation and concentration of alkaline wastewater with lime causticization to achieve calcium carbonate precipitation and the recovery of sodium hydroxide solution. In the preparation of the sodium hydroxide solution, evaporation to dryness is a crucial step. Sodium hydroxide is hygroscopic and soluble in water. If it is only evaporated to concentration without thorough drying, residual moisture will cause the solid to absorb water and deliquesce, resulting in the inability to obtain pure sodium hydroxide solid. Therefore, drying equipment is required for drying treatment.

[0003] Existing drying equipment directly feeds materials into the drying cylinder, causing them to pile up. This not only leads to uneven drying levels inside and outside the material, affecting product quality, but also makes it difficult to quickly remove the dried material, reducing operational efficiency. To address this, we propose an evaporation-causticization system process drying equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a drying device for an evaporation and causticization system, in order to solve the problem mentioned in the background art that the existing drying equipment directly feeds the material into the drying cylinder, causing the material to accumulate together. This not only leads to uneven drying inside and outside the material, affecting product quality, but also makes it inconvenient to quickly remove the dried material, reducing work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for an evaporation causticization system, comprising a frame; The cylinder is mounted on the frame; The cylinder body includes two fixed cylinders fixedly mounted on the frame and a rotating cylinder rotatably mounted between the two fixed cylinders. A fixed block is fixedly mounted on the fixed cylinder, and a rotating shaft is rotatably mounted between the two fixed blocks. A power component is fixedly mounted on the side of one of the fixed blocks, with its output end fixedly connected to the rotating shaft. A gear is fixedly mounted on the outer surface of the rotating shaft, and a gear ring that meshes with the gear is fixedly mounted on the outer surface of the rotating cylinder. The mesh cylinder is detachably installed on the inner wall of the rotating cylinder; The sealing cap is installed at the side opening of one of the fixed cylinders by means of a locking buckle; The second sealing cap is detachably installed at one end of the mesh cylinder opening. The drying heating plate is fixedly installed on the inner wall of the rotating cylinder; The drain pipe is installed through the fixed cylinder.

[0006] By adopting the above scheme, a power component one drives the rotating drum and the screen drum to rotate, and a power component two drives the rotating shafts three and four to rotate the agitator blades, thereby achieving double tumbling of the material inside the screen drum. This effectively prevents material accumulation and the resulting uneven drying levels inside and outside the drum, significantly improving the uniformity of material drying and ensuring product quality. The screen drum is designed to be detachable by using inserts, sockets, and pins. Furthermore, the screen drum is designed to be detachable by using a sealing cover two and a clamping plate, allowing for convenient and quick material removal. The operation is simple and convenient, improving production efficiency.

[0007] In a preferred embodiment, a plurality of sockets are fixedly installed on the inner wall of the rotating cylinder, and a plurality of inserts are fixedly installed on the outer surface of the mesh cylinder. The inserts are inserted into the inner wall of the sockets, and a pin is inserted between the inserts and the sockets.

[0008] By using the above solution, inserting the plug into the socket and locking it with the pin, a quick and detachable connection between the net cylinder and the rotating cylinder can be completed, which is convenient for installation and allows the rotating cylinder to drive the net cylinder to rotate synchronously when it rotates.

[0009] In a preferred embodiment, a rotating shaft is rotatably mounted on the second sealing cover. A handle and a disc are fixedly mounted at both ends of the second rotating shaft. A bolt is threaded onto the handle. Two threaded grooves for use with the bolts are opened on the side of the second sealing cover. The two threaded grooves are arranged in a ring around the first rotating shaft. Several hinged arms are eccentrically hinged on the disc. A clamping plate is hinged to the other end of each hinged arm. The clamping plate passes through a through hole opened on the second sealing cover and cooperates with a clamping groove opened on the inner wall of the mesh cylinder.

[0010] Using the above scheme, by setting annularly distributed threaded grooves, bolts can be screwed into the threaded grooves to fix the handle and the second sealing cover. When the handle is rotated, the disc drives the hinge arm to move, pushing the clamping plate into or out of the clamping groove of the mesh cylinder. With the locking of the bolt and the threaded groove, the installation and removal of the second sealing cover can be completed quickly. No tools are required for operation, which improves the efficiency of material loading and unloading. At the same time, multiple clamping plates are distributed circumferentially to ensure the stability of the sealing and fixation and avoid material leakage.

[0011] In a preferred embodiment, a guide block is fixedly installed on the side of the clamping plate, a guide groove is provided on the inner wall of the through hole of the second sealing cover, and a guide rod is fixedly installed on the inner wall of the guide groove. The guide block is slidably installed on the outer surface of the guide rod, and a spring is fixedly installed between the guide block and the inner wall of the guide groove.

[0012] The above solution provides precise guidance for the sliding of the clamping plate by the cooperation of the guide rod and the guide block, preventing the clamping plate from shifting and failing to engage with the clamping groove. The elastic force of the spring can push the guide block to reset when the handle is released, so that the clamping plate automatically disengages from the clamping groove, simplifying the disassembly operation and ensuring the smooth movement of the clamping plate, avoiding the impact of jamming on use.

[0013] In one preferred embodiment, a power component two is fixedly installed on the side of one of the fixed cylinders, a rotating shaft four is fixedly installed at the output end of the power component two, a rotating shaft three is rotatably installed on the mesh cylinder, the rotating shaft three and the rotating shaft four are used in cooperation, and a number of actuating blades are fixedly installed on the outer surface of the rotating shaft three.

[0014] By adopting the above scheme, active stirring of materials inside the mesh cylinder is achieved.

[0015] In a preferred embodiment, a cross socket is fixedly installed at one end of the rotating shaft three, and a cross slot for inserting the cross socket is provided at one end of the rotating shaft four.

[0016] The above solution ensures stable power transmission between the cross socket and the cross slot, preventing relative slippage, and also enables quick separation of the two. When removing the mesh tube, simply remove the first sealing cover to disengage the cross socket from the cross slot without affecting the disassembly process. This structure requires no additional locking components, simplifying operation while ensuring transmission reliability.

[0017] In a preferred embodiment, a plurality of alignment blocks are fixedly installed on the outer surface of the sealing cover, and the inner wall of the mesh cylinder is provided with alignment grooves for the alignment blocks to be inserted.

[0018] Using the above solution, when installing the second sealing cover, the alignment block is inserted into the alignment slot, which facilitates the installation of the second sealing cover and improves the ease of installation.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This evaporation and causticization system drying equipment uses a power component to drive the rotating drum and screen drum to rotate, and a power component to drive the rotating shafts three and four to rotate the agitator blades, thereby achieving double tumbling of the material inside the screen drum. This effectively prevents material accumulation and the phenomenon of uneven drying inside and outside the screen drum, greatly improves the uniformity of material drying, and ensures product quality. This evaporation and causticization system drying equipment features a detachable screen cylinder designed for use with inserts, sockets, and pins. Combined with a second sealing cover and a clamping plate, this allows for easy and quick material removal, simplifying operation and improving production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the cylindrical body of this utility model; Figure 3 This is a structural schematic diagram of the cross-section of the fixed cylinder and the rotating cylinder of this utility model; Figure 4 This is a schematic diagram of the structure of the mesh cylinder of this utility model; Figure 5 This is a schematic diagram of the exploded structure of the mesh cylinder and sealing cover of this utility model; Figure 6 This is a schematic diagram of the two cross-sections of the sealing cap of this utility model; Figure 7 This is a schematic diagram of the structure of the rotating shaft three of this utility model; Figure 8 This is a schematic diagram of the clamping plate of this utility model; Figure 9 This is a schematic diagram of the structure of the three and four rotating shafts of this utility model; Figure 10 This is a schematic diagram of the exploded structure of the socket and plug of this utility model.

[0021] In the diagram: 1. Frame; 2. Fixed cylinder; 3. Rotating cylinder; 4. Fixed block; 5. Power component one; 6. Rotating shaft one; 7. Gear; 8. Gear ring; 9. Mesh cylinder; 10. Sealing cover one; 11. Sealing cover two; 12. Socket; 13. Insert strip; 14. Pin; 15. Rotating shaft two; 16. Rotating handle; 17. Bolt; 18. Disc; 19. Hinge arm; 20. Clamping plate; 21. Guide rod; 22. Spring; 23. Guide block; 24. Alignment block; 25. Rotating shaft three; 26. Actuating blade; 27. Power component two; 28. Rotating shaft four; 29. ​​Cross socket; 30. Drain pipe; 31. Drying heating plate. Detailed Implementation

[0022] Please see Figure 1-10 This utility model provides a drying device for an evaporation causticization system, including a frame 1; The cylinder is mounted on frame 1; The cylinder body includes two fixed cylinders 2 fixedly mounted on the frame 1 and a rotating cylinder 3 rotatably mounted between the two fixed cylinders 2. Several sockets 12 are fixedly mounted on the inner wall of the rotating cylinder 3. Several inserts 13 are fixedly mounted on the outer surface of the mesh cylinder 9. The inserts 13 are inserted into the inner wall of the sockets 12, and pins 14 are inserted between the inserts 13 and the sockets 12. By inserting the inserts 13 into the sockets 12 and locking them with the pins 14, a quick and detachable connection between the mesh cylinder 9 and the rotating cylinder 3 can be achieved, facilitating installation. This allows the rotating cylinder 3 to rotate synchronously with the mesh cylinder 9. A rotating shaft 15 is rotatably mounted on the sealing cover 11. A handle 16 and a disc 18 are fixedly mounted at both ends of the rotating shaft 15. The sealing cover 11 is threaded with bolts 17. Two threaded grooves are provided on the side of the sealing cover 11 to cooperate with the bolts 17. The two threaded grooves are arranged in a ring around the rotating shaft 6. Several hinged arms 19 are eccentrically hinged on the disc 18. The other end of the hinged arm 19 is hinged to a clamping plate 20. The clamping plate 20 passes through the through hole on the sealing cover 11 and cooperates with the clamping groove on the inner wall of the mesh cylinder 9. By setting the ring-shaped threaded grooves, the bolts 17 can be screwed into the threaded grooves to fix the rotating handle 16 to the sealing cover 11. When the rotating handle 16 is rotated, the disc 18 drives the hinged arms 19 to move, pushing the clamping plate 20 to engage or disengage from the clamping groove of the mesh cylinder 9. With the locking of the bolts 17 and the threaded grooves, the installation and disassembly of the sealing cover 11 can be completed quickly without tools, improving the efficiency of material loading and unloading. At the same time, the multiple clamping plates 20 are distributed circumferentially to ensure the stability of the sealing and fixation and avoid material leakage. A guide block 23 is fixedly installed on the side of the clamping plate 20. A guide groove is opened on the inner wall of the through hole on the sealing cover 21, and a guide rod 21 is fixedly installed on the inner wall of the guide groove. The guide block 23 is slidably installed on the outer surface of the guide rod 21. A spring 22 is fixedly installed between the guide block 23 and the inner wall of the guide groove. The cooperation between the guide rod 21 and the guide block 23 provides precise guidance for the sliding of the clamping plate 20, preventing the clamping plate 20 from shifting and failing to be able to be locked into the clamping groove. The elastic force of the spring 22 can push the guide block 23 to reset when the handle 16 is released, so that the clamping plate 20 automatically disengages from the clamping groove, simplifying the disassembly operation, while ensuring the smooth movement of the clamping plate 20 and avoiding the impact of jamming on use. Several alignment blocks 24 are fixedly installed on the outer surface of the sealing cover 21. The inner wall of the mesh cylinder 9 is provided with alignment grooves for the alignment blocks 24 to be inserted. When the sealing cover 21 is installed, the alignment blocks 24 are inserted into the alignment grooves to realize the convenient installation operation of the sealing cover 21 and improve the ease of installation operation.

[0023] A fixed block 4 is fixedly installed on the fixed cylinder 2. A rotating shaft 6 is rotatably installed between the two fixed blocks 4. A power component 5 with its output end fixedly connected to the rotating shaft 6 is fixedly installed on the side of one of the fixed blocks 4. A gear 7 is fixedly installed on the outer surface of the rotating shaft 6. A toothed ring 8 that meshes with the gear 7 is fixedly installed on the outer surface of the rotating cylinder 3. The mesh cylinder 9 is detachably installed on the inner wall of the rotating cylinder 3; One of the fixed cylinders 2 has a power component 27 fixedly installed on its side. The output end of the power component 27 has a rotating shaft 4 28 fixedly installed. A rotating shaft 3 25 is rotatably installed on the mesh cylinder 9. The rotating shaft 3 25 and the rotating shaft 4 28 work together. Several agitator blades 26 are fixedly installed on the outer surface of the rotating shaft 3 25, which realizes the active stirring of the material in the mesh cylinder 9. One end of the rotating shaft 25 is fixedly equipped with a cross socket 29, and one end of the rotating shaft 28 is provided with a cross slot for the cross socket 29 to be inserted. The cooperation between the cross socket 29 and the cross slot ensures stable power transmission from the rotating shaft 28 to the rotating shaft 25 without relative slippage, and also enables quick separation of the two. When the net cylinder 9 is removed, only the sealing cover 10 needs to be removed to disengage the cross socket 29 from the cross slot, without affecting the disassembly process of the net cylinder 9. This structure does not require additional locking parts, which simplifies the operation while ensuring transmission reliability. The sealing cap 10 is installed at the side opening of one of the fixed cylinders 2 by means of a locking buckle; The sealing cap 21 is detachably installed at one end of the opening of the mesh cylinder 9; The drying heating plate 31 is fixedly installed on the inner wall of the rotating cylinder 3; The drain pipe 30 is installed through the fixed cylinder 2.

[0024] In this embodiment, both power component 5 and power component 27 can be servo motors.

[0025] When using Open the sealing cover 10, pull out the pin 14, remove the mesh cylinder 9 from the rotating cylinder 3, then turn the handle 16, the handle 16 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the disc 18 to rotate, the disc 18 pulls the clamping plate 20 to slide away from the mesh cylinder 9 through the hinge arm 19, so that the clamping plate 20 is disengaged from the clamping groove of the mesh cylinder 9. Then remove the sealing cover 11 and put the sodium hydroxide material to be dried into the mesh cylinder 9. After loading the materials, place the sealing cover 21 on the opening of the mesh cylinder 9, rotate the handle 16 in the opposite direction to drive the disc 18 to rotate, and the hinge arm 19 pushes the clamping plate 20 to slide towards the mesh cylinder 9 until the clamping plate 20 is inserted into the clamping groove of the mesh cylinder 9. Then tighten the bolt 17 on the handle 16 so that the bolt 17 is screwed into the corresponding thread groove on the sealing cover 21, and fix the position of the handle 16 and the rotating shaft 215 to complete the installation and fixing of the sealing cover 211. Place the mesh cylinder 9 containing the material into the rotating cylinder 3, so that the insert strip 13 on the outer surface of the mesh cylinder 9 is inserted into the socket 12 on the inner wall of the rotating cylinder 3, and then insert the pin 14 to fix the mesh cylinder 9 to the rotating cylinder 3. At this time, the cross socket 29 on the mesh cylinder 9 is aligned with the cross slot of the rotating shaft 28 on the fixed cylinder 2. Then, fasten the sealing cover 10 and lock the buckle to complete the loading and sealing of the equipment. When the equipment is started, the drying heating plate 31 is energized and generates heat. At the same time, power components 1 and 27 are started. Power component 1 drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the rotating cylinder 3 to rotate around its own axis through the meshing of gear 7 and gear ring 8. The rotating cylinder 3 then drives the screen cylinder 9 to rotate synchronously. The material in the screen cylinder 9 is turned over as the screen cylinder 9 rotates. Power component 27 drives the rotating shaft 4 28 to rotate. The rotating shaft 4 28 drives the rotating shaft 3 25 to rotate through the cooperation of cross socket 29 and cross slot. The rotating shaft 3 25 drives the agitator blade 26 to rotate. The agitator blade 26 further stirs and turns the material in the screen cylinder 9. During the material turning process, the heat generated by the drying heating plate 31 is transferred to the material through the rotating cylinder 3 and the mesh cylinder 9, causing the moisture in the material to evaporate; the water vapor generated by evaporation enters the gap between the rotating cylinder 3 and the fixed cylinder 2 through the mesh of the mesh cylinder 9, condenses into liquid water on the inner wall of the fixed cylinder 2, and flows along the inner wall of the fixed cylinder 2 to the drain pipe 30, is discharged through the drain pipe 30 and enters the external condensation recovery device; After the material has dried, turn off power component 5, power component 27 and drying heating plate 31, open sealing cover 10, pull out pin 14, remove mesh cylinder 9 from rotating cylinder 3, then loosen bolt 17, turn handle 16 to disengage clamping plate 20 from clamping groove, remove sealing cover 21, and pour the dried sodium hydroxide material out of mesh cylinder 9 to complete the entire drying operation.

Claims

1. A drying device for an evaporation causticization system, characterized in that: Including rack (1); The cylinder is mounted on the frame (1); The cylinder includes two fixed cylinders (2) fixedly mounted on the frame (1) and a rotating cylinder (3) rotatably mounted between the two fixed cylinders (2). A fixed block (4) is fixedly mounted on the fixed cylinder (2). A rotating shaft (6) is rotatably mounted between the two fixed blocks (4). A power component (5) with its output end fixedly connected to the rotating shaft (6) is fixedly mounted on the side of one of the fixed blocks (4). A gear (7) is fixedly mounted on the outer surface of the rotating shaft (6). A gear ring (8) meshing with the gear (7) is fixedly mounted on the outer surface of the rotating cylinder (3). The mesh cylinder (9) is detachably installed on the inner wall of the rotating cylinder (3); The sealing cap (10) is installed at the side opening of one of the fixed cylinders (2) by means of a locking buckle; The sealing cap 2 (11) is detachably installed at one end of the opening of the mesh cylinder (9); The drying heating plate (31) is fixedly installed on the inner wall of the rotating cylinder (3); The drain pipe (30) is installed through the fixed cylinder (2).

2. The drying equipment for the evaporation causticizing system according to claim 1, characterized in that: The inner wall of the rotating cylinder (3) is fixedly equipped with several sockets (12), and the outer surface of the mesh cylinder (9) is fixedly equipped with several inserts (13). The inserts (13) are inserted into the inner wall of the sockets (12), and a pin (14) is inserted between the inserts (13) and the sockets (12).

3. The drying equipment for the evaporation and causticization system according to claim 1, characterized in that: The sealing cover 2 (11) is rotatably mounted with a rotating shaft 2 (15). The two ends of the rotating shaft 2 (15) are respectively fixedly mounted with a rotating handle (16) and a disc (18). The rotating handle (16) is threaded with a bolt (17). The side of the sealing cover 2 (11) has two threaded grooves that cooperate with the bolts (17). The two threaded grooves are arranged in a ring with the rotating shaft 1 (6) as the center. The disc (18) is eccentrically hinged with several hinge arms (19). The other end of the hinge arm (19) is hinged with a clamping plate (20). The clamping plate (20) passes through the through hole opened on the sealing cover 2 (11) and cooperates with the clamping groove opened on the inner wall of the mesh cylinder (9).

4. The drying equipment for the evaporation causticizing system according to claim 3, characterized in that: A guide block (23) is fixedly installed on the side of the clamping plate (20). A guide groove is provided on the inner wall of the through hole on the second sealing cover (11), and a guide rod (21) is fixedly installed on the inner wall of the guide groove. The guide block (23) is slidably installed on the outer surface of the guide rod (21), and a spring (22) is fixedly installed between the guide block (23) and the inner wall of the guide groove.

5. The drying equipment for the evaporation causticizing system according to claim 1, characterized in that: One of the fixed cylinders (2) has a power component two (27) fixedly installed on its side. The output end of the power component two (27) has a rotating shaft four (28) fixedly installed. The mesh cylinder (9) has a rotating shaft three (25) rotatably installed. The rotating shaft three (25) and the rotating shaft four (28) are used together. Several actuating blades (26) are fixedly installed on the outer surface of the rotating shaft three (25).

6. The drying equipment for the evaporation causticizing system according to claim 5, characterized in that: One end of the rotating shaft three (25) is fixedly installed with a cross socket (29), and one end of the rotating shaft four (28) is provided with a cross slot for the cross socket (29) to be inserted.

7. The drying equipment for the evaporation causticizing system according to claim 1, characterized in that: Several alignment blocks (24) are fixedly installed on the outer surface of the sealing cover (11), and the inner wall of the mesh cylinder (9) is provided with alignment grooves for the alignment blocks (24) to be inserted.

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