MVR (Mechanical Vapor Recompression) evaporative crystallization device
By designing an MVR evaporation and crystallization device including multi-throttle cylinders, piston rods, filter plates and other components, the problem of crystal filtration and separation in the prior art cannot be directly performed during the evaporation process, and the effect of improving production efficiency is achieved.
Patent Information
- Application Number
- CN202421705412.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing MVR evaporation and crystallization devices cannot directly perform filtration and separation of crystals during the evaporation process, resulting in low production efficiency.
A MVR evaporation crystallization device is designed, including a multi-throttle cylinder, a multi-section piston rod, a filter plate, a aggregate block, a second cylinder, a second piston rod and a push plate. Through the cooperation of these components, the filtering and separation of the crystals during the evaporation process is realized.
The crystals can be filtered and separated during the evaporation process, which improves production efficiency.
Smart Images
Figure CN223009822U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of evaporation crystallization, and particularly relates to an MVR evaporation crystallization device. Background Art
[0002] The MVR evaporation crystallization device is a highly efficient and energy-saving evaporation technical equipment, which is mainly applied to fields such as chemical industry, pharmaceutical industry, food processing, sewage treatment, and salt crystallization. Its full name is Mechanical Vapor Recompression, that is, mechanical vapor recompression technology.
[0003] As the raw material liquid is continuously heated and evaporated, the solute concentration gradually increases, and crystallization begins when certain conditions are reached. The crystallized solid still needs to be separated through subsequent steps such as filtration, and solid crystals cannot be directly obtained, making the use process inconvenient. Content of the Utility Model
[0004] The utility model provides an MVR evaporation crystallization device, which can filter and separate crystals during the evaporation process, thereby improving production efficiency.
[0005] To achieve the above object, an MVR evaporation crystallization device is provided, including a bottom plate: legs are fixedly connected to the upper surface of the bottom plate, an evaporation tank is fixedly connected to the upper surface of the legs, a multi-stage cylinder is fixedly connected to the upper surface of the bottom plate, a multi-stage piston rod is fixedly connected to the output end of the multi-stage cylinder, the multi-stage piston rod passes through the bottom of the evaporation tank, a filter plate is fixedly connected to the upper surface of the multi-stage piston rod, the filter plate is inside the evaporation tank, an aggregate block is fixedly connected to the cylindrical surface of the evaporation tank, an aggregate groove is arranged on the upper surface of the aggregate block, a rectangular channel communicating with the aggregate groove and the inside of the evaporation tank is arranged at the connection between the aggregate block and the evaporation tank, a second side plate is fixedly connected to the other cylindrical surface of the evaporation tank, a second cylinder is fixedly connected to the upper surface of the second side plate, a second piston rod is fixedly connected to the output end of the second cylinder, the second piston rod passes through the side wall of the evaporation tank, and a push plate is fixedly connected to the second piston rod away from the second cylinder. The lower surface of the push plate is at the same height as the lower surface of the rectangular channel between the evaporation tank and the aggregate block. By setting the multi-stage cylinder and the multi-stage piston rod, it is convenient to drive the filter plate to move up and down. By setting the filter plate, it is convenient to filter the crystals in the liquid in the evaporation tank during its upward movement. By setting the aggregate block, it is convenient to store the filtered crystals during the evaporation process. By setting the second cylinder and the second piston rod, it is convenient to drive the push plate to move. By setting the push plate, it is convenient to push the crystals filtered out in the groove of the filter plate into the aggregate groove of the aggregate block.
[0006] According to the described MVR evaporation crystallization device, the upper surface of the filter disc is a curved surface with a lower center. A groove that penetrates on one side is provided on the upper edge of the filter disc, and filter holes are provided at the bottom of the groove of the filter disc.
[0007] According to the described MVR evaporation crystallization device, the cylindrical surface of the evaporation tank is fixedly connected to the first side plate, and the first side plate is above the aggregate block. The first side plate is provided to facilitate the support of the first cylinder.
[0008] According to the described MVR evaporation crystallization device, the first side plate is fixedly connected to the first cylinder on its upper surface, and the output end of the first cylinder is fixedly connected to the first piston rod, and the first piston rod passes through the first side plate. The first cylinder and the first piston rod are provided to facilitate driving the cover plate to move up and down and pressing the cover plate against the opening of the aggregate groove of the aggregate block, thereby preventing the gas in the evaporation tank from escaping.
[0009] According to the described MVR evaporation crystallization device, the lower end surface of the first piston rod is fixedly connected to the cover plate, and a rubber layer is provided on the lower surface of the cover plate, and the cover plate is pressed against the opening of the aggregate groove of the aggregate block.
[0010] According to the described MVR evaporation crystallization device, a through round hole is provided on the lower surface of the evaporation tank, a sealing ring is fixedly connected to the cylindrical surface of the through round hole on the lower surface of the evaporation tank, and the cylindrical surface of the multi-stage piston rod is in close contact with the inner cylindrical surface of the sealing ring. The sealing ring is provided to facilitate the sealing state at the joint between the bottom of the evaporation tank and the multi-stage piston rod.
[0011] According to the described MVR evaporation crystallization device, a steam input pipe is provided on the cylindrical surface of the evaporation tank, and an air outlet pipe is provided on the cylindrical surface of the evaporation tank away from the steam input pipe, and the height of the air outlet pipe is lower than the height of the steam input pipe. The steam input pipe is provided to facilitate the compressed steam to enter the evaporation tank, and the air outlet pipe is provided to facilitate the steam inside the evaporation tank to flow out into the steam compressor.
[0012] According to the described MVR evaporation crystallization device, a drain pipe is provided on the lower surface of the evaporation tank, and a stop valve is provided on the drain pipe. The drain pipe is provided to facilitate the discharge of the liquid inside the evaporation tank.
[0013] The beneficial effects of the present utility model: By providing a multi-stage cylinder, a multi-stage piston rod, a filter disc, an aggregate block, a second cylinder, a second piston rod, and a push plate, the crystals can be filtered and separated during the evaporation process, thereby improving the production efficiency.
[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings
[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;
[0016] Figure 1 It is a schematic diagram of the overall structure of an MVR evaporation crystallization device of the present utility model;
[0017] Figure 2 It is a schematic diagram of the internal structure of the evaporation tank of an MVR evaporation crystallization device of the present utility model;
[0018] Figure 3 It is a schematic cross-sectional view of the connection between the aggregate block and the evaporation tank of an MVR evaporation crystallization device of the present utility model;
[0019] Figure 4 It is a part drawing of the filter disc of an MVR evaporation crystallization device of the present utility model.
[0020] Legend Explanation:
[0021] 1. Bottom plate; 2. Evaporation tank; 3. Aggregate block; 4. Cover plate; 5. First piston rod; 6. First side plate; 7. First cylinder; 8. Steam input pipe; 9. Second cylinder; 10. Second side plate; 11. Air outlet pipe; 12. Drain pipe; 13. Multi-stage cylinder; 14. Multi-stage piston rod; 15. Filter disc; 16. Push plate; 17. Second piston rod. Detailed Embodiment
[0022] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.
[0023] Refer to Figures 1 to 4, in an embodiment of the utility model, an MVR evaporation crystallization device includes a bottom plate 1: legs are fixedly connected to the upper surface of the bottom plate 1, an evaporation tank 2 is fixedly connected to the upper surface of the legs, a multi-stage cylinder 13 is fixedly connected to the upper surface of the bottom plate 1, the output end of the multi-stage cylinder 13 is fixedly connected to a multi-stage piston rod 14, the multi-stage piston rod 14 passes through the bottom of the evaporation tank 2, a filter plate 15 is fixedly connected to the upper surface of the multi-stage piston rod 14, the filter plate 15 is inside the evaporation tank 2, an aggregate block 3 is fixedly connected to the cylindrical surface of the evaporation tank 2, an aggregate groove is provided on the upper surface of the aggregate block 3, a rectangular channel communicating with the aggregate groove and the inside of the evaporation tank 2 is provided at the connection between the aggregate block 3 and the evaporation tank 2, a second side plate 10 is fixedly connected to another cylindrical surface of the evaporation tank 2, a second cylinder 9 is fixedly connected to the upper surface of the second side plate 10, the output end of the second cylinder 9 is fixedly connected to a second piston rod 17, the second piston rod 17 passes through the side wall of the evaporation tank 2, a push plate 16 is fixedly connected to the second piston rod 17 away from the second cylinder 9, the lower surface of the push plate 16 is at the same height as the lower surface of the rectangular channel between the evaporation tank 2 and the aggregate block 3, a through hole is provided on the lower surface of the evaporation tank 2, a sealing ring is fixedly connected to the cylindrical surface of the through hole on the lower surface of the evaporation tank 2, the cylindrical surface of the multi-stage piston rod 14 is in close contact with the inner cylindrical surface of the sealing ring, when the filter plate 15 moves to the highest position, at this time the lower surface height of the groove on the filter plate 15 is the same as the lower surface height of the rectangular channel between the evaporation tank 2 and the aggregate block 3, and at the same time the push plate 16 will be stuck in the position of the groove on the filter plate 15 farthest from the opening.
[0024] A steam input pipe 8 is provided on the cylindrical surface of the evaporation tank 2, an air outlet pipe 11 is provided on the cylindrical surface of the evaporation tank 2 away from the steam input pipe 8, the height of the air outlet pipe 11 is lower than the height of the steam input pipe 8, a drain pipe 12 is provided on the lower surface of the evaporation tank 2, and a stop valve is provided on the drain pipe 12.
[0025] A first side plate 6 is fixedly connected to the cylindrical surface of the evaporation tank 2, and the first side plate 6 is above the aggregate block 3.
[0026] A first cylinder 7 is fixedly connected to the upper surface of the first side plate 6, the output end of the first cylinder 7 is fixedly connected to a first piston rod 5, the first piston rod 5 passes through the first side plate 6, a cover plate 4 is fixedly connected to the lower end surface of the first piston rod 5, a rubber layer is provided on the lower surface of the cover plate 4, the cover plate 4 presses on the opening of the aggregate groove of the aggregate block 3, during the evaporation process, the cover plate 4 is pressed tightly at the opening of the aggregate groove of the aggregate block 3, so as to ensure that the gas in the evaporation tank 2 will not escape, after the evaporation is over, the cover plate 4 can be driven to move upward by the first cylinder 7 and the first piston rod 5 to take out the crystals in the aggregate groove.
[0027] The upper surface of the filter plate 15 is a curved surface with a low center, a groove with one side communicating is provided on the upper edge of the filter plate 15, filter holes are provided at the bottom of the groove of the filter plate 15, and the liquid on the filter plate 15 will flow into the groove and be filtered, and the crystals will remain on the lower surface of the groove.
[0028] Working principle: During the evaporation process, the multi-section piston rod 14 is driven by the multi-section cylinder 13 to drive the filter disc 15 to rise. During this process, the crystals in the liquid in the evaporation tank 2 will be filtered out and remain on the lower surface of the groove of the filter disc 15. When the filter disc 15 rises to the highest position, the second cylinder 9 is started to drive the second piston rod 17 to drive the push plate 16 to move, and the crystals in the groove of the filter disc 15 are pushed into the aggregate groove of the aggregate block 3. Subsequently, the filter disc 15 and the push plate 16 are returned to their original positions, and then this process is continued to repeat.
[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the gist of the present invention.
Claims
1. An MVR evaporation crystallization device, characterized in that: The invention comprises a bottom plate (1): the upper surface of the bottom plate (1) is fixedly connected to a support leg, the upper surface of the support leg is fixedly connected to an evaporation tank (2), the upper surface of the bottom plate (1) is fixedly connected to a multi-section cylinder (13), the output end of the multi-section cylinder (13) is fixedly connected to a multi-section piston rod (14), the multi-section piston rod (14) passes through the bottom of the evaporation tank (2), the upper surface of the multi-section piston rod (14) is fixedly connected to a filter plate (15), the filter plate (15) is inside the evaporation tank (2), the cylindrical surface of the evaporation tank (2) is fixedly connected to an aggregate block (3), the upper surface of the aggregate block (3) is provided with an aggregate groove, and the aggregate block ( A rectangular channel that is connected to the aggregate trough and the inside of the evaporator (2) is provided at the connection between the evaporator (3) and the evaporator (2); the other cylindrical surface of the evaporator (2) is fixedly connected to the second side plate (10); the upper surface of the second side plate (10) is fixedly connected to the second cylinder (9); the output end of the second cylinder (9) is fixedly connected to the second piston rod (17); the second piston rod (17) passes through the side wall of the evaporator (2); the second piston rod (17) is fixedly connected to a push plate (16) away from the second cylinder (9); the lower surface of the push plate (16) is at the same height as the lower surface of the rectangular channel between the evaporator (2) and the aggregate block (3).
2. The MVR evaporation crystallization device according to claim 1, characterized in that: The upper surface of the filter disc (15) is a curved surface with a low center. A groove penetrating one side is arranged on the upper side of the filter disc (15), and a filter hole is arranged at the bottom of the groove of the filter disc (15).
3. The MVR evaporation crystallization device according to claim 1, characterized in that: The cylindrical surface of the evaporation tank (2) is fixedly connected to a first side plate (6), and the first side plate (6) is above the aggregate block (3).
4. The MVR evaporation crystallization device according to claim 3, characterized in that: The upper surface of the first side plate (6) is fixedly connected to the first cylinder (7), the output end of the first cylinder (7) is fixedly connected to the first piston rod (5), and the first piston rod (5) passes through the first side plate (6).
5. The MVR evaporation crystallization device according to claim 4, characterized in that: The lower end surface of the first piston rod (5) is fixedly connected to a cover plate (4), a rubber layer is provided on the lower surface of the cover plate (4), and the cover plate (4) is pressed against the opening of the aggregate groove of the aggregate block (3).
6. The MVR evaporation crystallization device according to claim 1, characterized in that: The lower surface of the evaporator (2) is provided with a through circular hole, the cylindrical surface of the through circular hole on the lower surface of the evaporator (2) is fixedly connected to a sealing ring, and the cylindrical surface of the multi-section piston rod (14) is in close contact with the inner cylindrical surface of the sealing ring.
7. The MVR evaporation crystallization device according to claim 1, characterized in that: A steam input pipe (8) is arranged on the cylindrical surface of the evaporation tank (2), and an air outlet pipe (11) is arranged on the cylindrical surface of the evaporation tank (2) away from the steam input pipe (8), wherein the height of the air outlet pipe (11) is lower than the height of the steam input pipe (8).
8. The MVR evaporation crystallization device according to claim 1, characterized in that: A liquid discharge pipe (12) is provided on the lower surface of the evaporation tank (2), and a stop valve is provided on the liquid discharge pipe (12).