High-salt mother liquor evaporation crystallization purification device

Abstract

The utility model discloses a kind of high-salt mother liquor evaporation crystallization purification devices, belong to evaporation crystallization equipment technical field.Device includes rack, evaporation component and screening mechanism;Evaporation component includes jar column, and screening mechanism includes storage box.Device further includes rotating mechanism, rotating mechanism includes rotatable stand, scraper fixed on stand, protection column and fixed ring;Reset spring is further elastically connected between stand and scraper, and reset spring is fixed by connecting column and support rod.Device is further provided with replacement mechanism, including telescopic rod of telescopic setting and the gripper connected at telescopic rod end, and the gripper is used to break the material in storage box.The utility model is set by rotating mechanism, realizes the automatic elastic scraping of the inner wall of jar column, solves the problem of wall scale formation on inner wall, improves evaporation efficiency;By setting replacement mechanism, it can effectively break the material of hardening, and can quickly replace gripper, and maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of evaporation and crystallization equipment technology, and in particular to a high-salt mother liquor evaporation, crystallization and purification device. Background Technology

[0002] High-salt mother liquor is a common byproduct in the chemical and pharmaceutical industries. Its high salt content and complex composition pose a significant environmental hazard if directly discharged. Evaporation and crystallization are currently one of the mainstream technologies for treating high-salt mother liquor, achieving resource recovery, and purifying wastewater.

[0003] During the evaporation and crystallization process, the mother liquor is continuously heated and concentrated within the evaporator (such as an evaporation tank). As the solvent continues to vaporize, the supersaturation of the mother liquor increases, and salts gradually precipitate out. However, when high-salt mother liquor is heated and evaporated, it is very easy for stains, material to adhere to the inner wall of the evaporation tank, or even a hard scale layer to form.

[0004] This scaling and depositing phenomenon not only severely hinders heat transfer, reducing the thermal efficiency and processing capacity of the evaporator, but also, after accumulating to a certain extent, affects the normal flow of materials and may even block the equipment. Currently, the main method relies on periodic shutdowns for manual mechanical cleaning or chemical cleaning. These methods are not only time-consuming and labor-intensive, interrupting production, but also have limited cleaning effects, are difficult to completely remove, and may even cause corrosion damage to the equipment itself. Therefore, a high-salt mother liquor evaporation crystallization purification device is proposed to solve the above problems. Utility Model Content

[0005] In view of the problems in the existing high-salt mother liquor evaporation crystallization purification device, such as the easy scaling and adhesion of scale on the inner wall of the evaporator, which leads to reduced heat transfer efficiency and requires manual cleaning after shutdown, which is time-consuming, labor-intensive and affects production efficiency, this utility model aims to provide a high-salt mother liquor evaporation crystallization purification device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a high-salt mother liquor evaporation crystallization purification device, comprising: a frame; an evaporation assembly mounted on the frame, the evaporation assembly including a tank column and a transition pipe disposed on the upper part of the tank column; a screening mechanism mounted on the frame, the screening mechanism including a storage tank and a filter screen disposed in the storage tank; and a rotation mechanism.

[0007] The rotating mechanism includes a column that is rotatably inserted into the evaporation assembly. A scraper is connected to the outer periphery of the column. The scraper is used to scrape the inner wall of the column, thereby continuously removing stains or scale adhering to the inner wall during equipment operation.

[0008] Furthermore, the rotating mechanism also includes a protective column and a fixing ring. The protective column is coaxially sleeved on the outside of the column to provide protection for the column, and the fixing ring is used to fix the column and the protective column. A return spring is also elastically connected between the column and the scraper. The rotating mechanism also includes a connecting column and a support rod. The connecting column is fixed to the column, and the support rod is fixed to the scraper. The two ends of the return spring abut against the connecting column and the support rod, respectively. This elastic structure ensures that the scraper can adapt to the slight deformation of the inner wall of the tank column and always maintain a close contact for scraping.

[0009] Preferably, the evaporation assembly further includes a feed pump, a reinforcing ring, a delivery pipe, and a separation pipe. The feed pump is connected to the tank column via a transition pipe and is used to deliver material into the tank column. The reinforcing ring is fixed around the outer wall of the tank column to enhance the overall structural stability of the tank column. Both the delivery pipe and the separation pipe are connected to the upper part of the tank column; the delivery pipe is used to discharge the high-temperature gas generated by evaporation, and the separation pipe is used to cool and solidify the gas.

[0010] Preferably, the device further includes a replacement mechanism. The replacement mechanism includes a telescopic rod that can be extended and a gripper connected to the end of the telescopic rod. The gripper is used to crush solid materials stored in the storage tank that have hardened due to cooling.

[0011] Preferably, to enable flexible movement of the replacement mechanism, the screening mechanism further includes a mounting base, a hinged column, and a rotating rod. The mounting base is fixed to the storage box, providing a mounting foundation for the replacement mechanism. The telescopic rod and the rotating rod are rotatably connected via the hinged column, and the rotating rod is rotatably connected to the mounting base, allowing the telescopic rod and grippers to swing over a wide range to reach different positions within the storage box.

[0012] Preferably, to achieve the crushing action of the gripper, the changing mechanism further includes a housing, a receiving block, an actuator rod, a cylinder, and a connecting rod. The housing is fixed to the telescopic rod and serves as the mounting carrier for the actuator. The receiving block is slidably mounted inside the housing. The actuator rod is fixed inside the receiving block, and the cylinder is used to fix the receiving block. The connecting rod connects the receiving block and the gripper, and is used to drive the gripper to achieve the opening or closing crushing action.

[0013] Preferably, to enable quick replacement of the grippers, the replacement mechanism further includes a locking block, a spring, and a thin pin. The locking block is movably mounted on the receiving block. The spring and thin pin are installed within the receiving block and are used to drive the locking block to extend or retract. The locking block is used to detachably lock the grippers; when replacement is needed, the grippers are released by operating the receiving block to retract the locking block.

[0014] Preferably, to facilitate quick replacement, the replacement mechanism also includes a positioning ring and a guide head. Both the positioning ring and the guide head are located on the grippers. The locking block engages with the positioning ring in the locked state, securing the grippers. The guide head guides the connecting block to the grippers for quick and accurate alignment during installation.

[0015] Preferably, the screening mechanism also includes a filter port located at the bottom of the storage tank, used to discharge qualified materials that have been screened by the filter screen and crushed by the grippers.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem in the prior art that the inner wall of the evaporator tank is prone to stains or residues and is difficult to clean by setting a rotating mechanism, which includes a rotatable column and a scraper fixed on the column. The scraper is elastically connected to the column through a return spring. This achieves the technical effect that the scraper can automatically clean the inner wall of the tank column under the drive of the motor, and the return spring can make it elastically fit the inner wall, resulting in good cleaning effect and ensuring evaporation efficiency.

[0018] 2. This utility model, by setting a replacement mechanism, includes a telescopic rod and a gripper connected to the end of the telescopic rod, and works with a mounting base, hinge column and rotating rod to make it pivotal, solves the problem that materials easily clump together in the storage box after cooling and solidification, causing blockage or difficulty in discharge. It achieves the technical effect that the gripper can penetrate into the storage box under the drive of the telescopic rod and move to different positions through the pivoting structure to effectively break up the clumped solids and prevent blockage.

[0019] 3. This utility model solves the problem of complex, time-consuming and labor-intensive replacement of crushing grippers as vulnerable parts by setting a quick-change gripper structure composed of components such as connecting block, locking block, spring, thin column, positioning ring and guide head in the replacement mechanism. When the gripper needs to be replaced, it can be quickly released by simply pushing the connecting block to compress the spring and causing the locking block to retract. This greatly simplifies the maintenance process and shortens the equipment downtime. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a high-salt mother liquor evaporation crystallization purification device proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the scraper structure of a high-salt mother liquor evaporation crystallization purification device proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the column structure of a high-salt mother liquor evaporation crystallization purification device proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the gripper structure of a high-salt mother liquor evaporation crystallization purification device proposed in this utility model;

[0024] Figure 5 for Figure 4 A cross-sectional view at point A in the middle.

[0025] Legend:

[0026] 1. Rack;

[0027] 2. Evaporation assembly; 21. Feed pump; 22. Reinforcing ring; 23. Tank column; 24. Conveying pipe; 25. Separation pipe; 26. Transition pipe;

[0028] 3. Rotating mechanism; 31. Column; 32. Fixing ring; 33. Connecting column; 34. Protective column; 35. Support rod; 36. Return spring; 37. Scraper;

[0029] 4. Screening mechanism; 41. Filter screen; 42. Filter port; 43. Storage box; 44. Mounting base; 45. Hinge column; 46. Telescopic rod; 47. Rotating rod;

[0030] 5. Replacement mechanism; 51. Actuating rod; 52. Connecting column; 53. Cylindrical column; 54. Connecting rod; 55. Gripper; 56. Positioning ring; 57. Guide head; 58. Locking block; 59. Spring; 510. Thin column; 511. Housing. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example:

[0033] Reference Figures 1 to 5 This utility model provides a high-salt mother liquor evaporation crystallization purification device, which aims to solve the technical problems in the prior art. Existing high-salt mother liquor treatment devices have problems such as stains or residues adhering to the inner wall of the evaporation tank, which are difficult to clean; at the same time, the material is prone to caking after cooling and solidification, which is not convenient for crushing and processing, and the crushing parts are inconvenient to replace after damage.

[0034] A high-salt mother liquor evaporation crystallization purification device includes a frame 1, an evaporation assembly 2 and a screening mechanism 4 installed on the frame 1. The evaporation assembly 2 includes a tank column 23 and a transition pipe 26 disposed on the upper part of the tank column 23. The screening mechanism 4 includes a storage tank 43 and a filter screen 41 disposed in the storage tank 43.

[0035] The device also includes a rotating mechanism 3, which includes a column 31 rotatably inserted into the evaporation assembly 2. A scraper 37 is connected to the outer periphery of the column 31. The scraper 37 is used to scrape the inner wall of the tank column 23. The rotating mechanism 3 also includes a protective column 34 and a fixing ring 32. The protective column 34 is coaxially sleeved on the outside of the column 31, and the fixing ring 32 is used to fix the column 31 and the protective column 34.

[0036] A return spring 36 is elastically connected between the column 31 and the scraper 37. The rotating mechanism 3 also includes a connecting column 33 and a support rod 35. The connecting column 33 is fixed to the column 31, the support rod 35 is fixed to the scraper 37, and the two ends of the return spring 36 abut against the connecting column 33 and the support rod 35 respectively.

[0037] The device also includes a replacement mechanism 5, which includes a telescopic rod 46 that can be extended and a gripper 55 connected to the end of the telescopic rod 46. The gripper 55 is used to crush the material in the storage box 43.

[0038] To enable the installation and positioning of the replacement mechanism 5, the screening mechanism 4 also includes a mounting base 44, a hinge column 45, and a rotating rod 47; the mounting base 44 is fixed on the storage box 43; the telescopic rod 46 and the rotating rod 47 are rotatably connected through the hinge column 45, and the rotating rod 47 is rotatably connected to the mounting base 44.

[0039] To achieve the crushing action of the gripper 55, the changing mechanism 5 also includes a housing 511, a receiving block 52, an actuator 51, a cylinder 53, and a connecting rod 54; the housing 511 is fixed on the telescopic rod 46; the receiving block 52 is slidably installed inside the housing 511, the actuator 51 is fixed inside the receiving block 52, and the cylinder 53 is used to fix the receiving block 52; the connecting rod 54 connects the receiving block 52 and the gripper 55 and is used to drive the gripper 55 to open or retract.

[0040] To enable quick replacement of the gripper 55, the replacement mechanism 5 also includes a locking block 58, a spring 59, and a thin column 510. The locking block 58 is movably mounted on the receiving block 52. The spring 59 and the thin column 510 are installed inside the receiving block 52 to drive the locking block 58. The locking block 58 is used to detachably lock the gripper 55. The replacement mechanism 5 further includes a positioning ring 56 and a guide head 57. The positioning ring 56 and the guide head 57 are both mounted on the gripper 55. The locking block 58 engages with the positioning ring 56, and the guide head 57 guides the docking of the receiving block 52 and the gripper 55. This structure, which integrates pivot positioning, telescopic execution, and quick replacement, ensures that the crushing mechanism can be flexibly moved to different positions within the storage box 43 for crushing operations, and can be conveniently and quickly replaced when the gripper 55 is damaged.

[0041] In a preferred embodiment, to improve the feeding and discharging and structural strength of the evaporation assembly 2, the evaporation assembly 2 also includes a feed pump 21, a reinforcing ring 22, a conveying pipe 24, and a separation pipe 25. The feed pump 21 is connected to the tank column 23 via a transition pipe 26 and is used to pump the mother liquor material to be treated into the tank column 23 for evaporation. The reinforcing ring 22 is fixed around the outer wall of the tank column 23. The reinforcing ring 22 can not only enhance the overall structural strength of the tank column 23, but also serve as a connection node for the segmented structure of the tank column 23 to facilitate the maintenance and replacement of the internal structure. The conveying pipe 24 and the separation pipe 25 are both connected to the upper part of the tank column 23. The conveying pipe 24 is used to discharge the gas generated by evaporation, and the separation pipe 25 is used to receive the gas discharged by the conveying pipe 24 and provide it for cooling, solidification, and separation.

[0042] As another preferred embodiment, in order to facilitate the discharge of the final material after screening and purification, the screening mechanism 4 also includes a filter port 42. The filter port 42 is opened at the bottom of the storage tank 43. After the cooled and solidified material enters the storage tank 43 through the screening of the filter screen 41, the qualified granular material is collected at the bottom of the storage tank 43 and discharged and collected through the filter port 42.

[0043] The implementation principle of this application embodiment is as follows: The frame 1 supports the evaporation assembly 2 and the screening mechanism 4. When the evaporation assembly 2 is working, the material enters from the feed pump 21 and enters the tank column 23 through the transition pipe 26, thereby evaporating the material. The reinforcing ring 22 divides the tank column 23 into two parts, allowing for the replacement of the internal structure. The evaporated material is discharged through the conveying pipe 24. When the gas passes through the separation pipe 25, it cools and forms a solid. When the material enters the tank column 23 through the transition pipe 26, stains or liquid may accumulate on the inner wall over time. This can be cleaned using the rotating mechanism 3. The motor drives the rotation of the column 31, thereby rotating the scraper 37. The fixing ring 32 fixes the connection between the column 31 and the protective column 34. When the inner wall is thin, the return spring 36 is compressed. The support rod 35 fixes the return spring 36, extending its service life. The connecting column 33 is used to fix the spring, and the protective column 34 is used to protect against corrosion from external materials. After the material has cooled down, it enters the screening mechanism 4. The solids are screened, and when they become compacted, they can be broken up using the replacement mechanism 5. The mounting base 44 is fixed on the storage box 43. The hinge column 45 connects the telescopic rod 46 and the rotating rod 47, allowing them to move. The cylinder 53 fixes the connection of the connecting block 52. The actuator 51 is fixed inside the connecting block 52. When the machine starts working, the motor drives the connecting rod 54 to extend and retract up and down, and the gripper 55 also opens and closes. The motor also drives the telescopic rod 46 to move back and forth. In conjunction with the replacement mechanism 5, it can break up solids in different positions. When it is necessary to change different grippers 55, the connecting block 52 is pushed forward, the compression spring 59 retracts, and the locking block 58 retracts. The thin column 510 fixes the back and forth movement of the compression spring 59, the positioning ring 56 moves forward, and the locking block 58 locks it, thus achieving the detachment. The guide head 57 plays a positioning role and restricts its movement. The housing 511 is fixed on the telescopic rod 46, making it a whole. The screened objects enter through the filter screen 41 and are concentrated in the storage box 43, and then discharged through the filter port 42.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-salt mother liquor evaporation crystallization purification device, comprising: Rack (1); An evaporation assembly (2) is mounted on the frame (1). The evaporation assembly (2) includes a tank column (23) and a transition tube (26) located on the upper part of the tank column (23). A screening mechanism (4) is installed on the frame (1). The screening mechanism (4) includes a storage box (43) and a filter screen (41) disposed in the storage box (43). The device is characterized in that it further includes a rotating mechanism (3), the rotating mechanism (3) including a column (31) rotatably inserted in the evaporation assembly (2), a scraper (37) connected to the outer periphery of the column (31), the scraper (37) being used to scrape the inner wall of the tank column (23); The rotating mechanism (3) also includes a protective column (34) and a fixing ring (32). The protective column (34) is coaxially sleeved on the outside of the column (31), and the fixing ring (32) is used to fix the column (31) and the protective column (34). A return spring (36) is elastically connected between the column (31) and the scraper (37). The rotating mechanism (3) also includes a connecting column (33) and a support rod (35). The connecting column (33) is fixed to the column (31), and the support rod (35) is fixed to the scraper (37). The two ends of the return spring (36) abut against the connecting column (33) and the support rod (35) respectively.

2. The mother liquor evaporation crystallization purification device according to claim 1, characterized in that, The evaporation assembly (2) also includes a feed pump (21), a reinforcing ring (22), a delivery pipe (24), and a separation pipe (25); the feed pump (21) is connected to the tank column (23) via the transition pipe (26); the reinforcing ring (22) is fixed around the outer wall of the tank column (23); the delivery pipe (24) and the separation pipe (25) are both connected to the upper part of the tank column (23).

3. The high-salt mother liquor evaporation crystallization purification device according to claim 1, characterized in that, The device also includes a replacement mechanism (5), which includes a telescopic rod (46) that can be extended and retracted, and a gripper (55) connected to the end of the telescopic rod (46). The gripper (55) is used to crush the material in the storage box (43).

4. The high-salt mother liquor evaporation crystallization purification device according to claim 3, characterized in that, The screening mechanism (4) further includes a mounting base (44), a hinge column (45), and a rotating rod (47); the mounting base (44) is fixed on the storage box (43); the telescopic rod (46) and the rotating rod (47) are rotatably connected through the hinge column (45), and the rotating rod (47) is rotatably connected to the mounting base (44).

5. The high-salt mother liquor evaporation crystallization purification device according to claim 3, characterized in that, The replacement mechanism (5) further includes a housing (511), a connecting block (52), an actuator (51), a cylinder (53), and a connecting rod (54); the housing (511) is fixed on the telescopic rod (46); the connecting block (52) is slidably installed inside the housing (511), the actuator (51) is fixed inside the connecting block (52), and the cylinder (53) is used to fix the connecting block (52); the connecting rod (54) connects the connecting block (52) and the gripper (55) and is used to drive the gripper (55) to open or retract.

6. The high-salt mother liquor evaporation crystallization purification device according to claim 5, characterized in that, The replacement mechanism (5) further includes a locking block (58), a spring (59), and a thin post (510); the locking block (58) is movably disposed on the receiving block (52); the spring (59) and the thin post (510) are installed in the receiving block (52) for driving the locking block (58); the locking block (58) is used to detachably lock the gripper (55).

7. The high-salt mother liquor evaporation crystallization purification device according to claim 6, characterized in that, The replacement mechanism (5) further includes a positioning ring (56) and a guide head (57); the positioning ring (56) and the guide head (57) are both located on the gripper (55), the locking block (58) is engaged with the positioning ring (56), and the guide head (57) is used to guide the docking of the connecting block (52) with the gripper (55).

8. The high-salt mother liquor evaporation crystallization purification device according to claim 1, characterized in that, The screening mechanism (4) also includes a filter port (42), which is located at the bottom of the storage box (43).

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