Low-temperature evaporative crystallization equipment with self-cleaning function
By introducing the coordinated operation of scrapers and spray heads into the low-temperature evaporation crystallization equipment, the problem of crystal residue on the inner wall is solved, the equipment's self-cleaning function is realized, and the cleaning efficiency is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FRODE TECH (JIANGSU) CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-19
AI Technical Summary
When using existing low-temperature evaporation crystallization equipment, crystals tend to remain on the inner wall of the tank. Existing cleaning methods require opening the tank, which makes cleaning inconvenient.
A low-temperature evaporation crystallization device with self-cleaning function was designed. It adopts a scraper and a spray head working together. The scraper is driven by a motor to rotate and scrape off the crystals on the inner wall, and the spray head sprays cleaning liquid. Combined with a blocking mechanism, it realizes the removal and rinsing of impurities, and the flow channel can be quickly switched through the blocking mechanism.
It enables real-time cleaning of the inner wall of the crystallization tank, improves cleaning efficiency, avoids crystallization residue, and simplifies the cleaning process.
Smart Images

Figure CN224252137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of low-temperature evaporation crystallization equipment, and in particular to a low-temperature evaporation crystallization equipment with self-cleaning function. Background Technology
[0002] Evaporation crystallization refers to the process of evaporating water from a solution to gradually increase the concentration of the solute and the solution, thereby precipitating crystals. Evaporation crystallization equipment is a processing device that uses this principle to heat the liquid to increase its concentration and precipitate crystals. It is widely used in wastewater treatment, chemical industry, non-ferrous metal industry, pesticide industry, food industry, pharmaceutical industry, ammonia desulfurization, mining and metallurgy, steel plants, oil fields and other industries.
[0003] Generally, the evaporation and crystallization of liquids is carried out using a low-temperature evaporation and crystallization process, which often employs electric heating. However, it has been found that some crystals remain on the inner wall of the tank during use of existing evaporation and crystallization equipment. Existing cleaning methods require opening the tank to clean the interior, making cleaning quite troublesome. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low-temperature evaporation crystallization device with self-cleaning function.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A low-temperature evaporation crystallization device with self-cleaning function includes a base plate, a crystallization tank vertically arranged on the base plate, a cleaning mechanism at the top of the crystallization tank, a connecting ball valve at the bottom of the crystallization tank, and a sealing mechanism for switching different flow channels on the connecting ball valve.
[0007] The cleaning mechanism includes a first motor, which is located at the top of the crystallization tank. A rotating shaft connected to the bottom output end of the first motor extends vertically downward into the interior of the crystallization tank. A scraper is fixedly connected to a rod inside the crystallization tank, and the scraper contacts the inner wall of the crystallization tank.
[0008] In addition, a preferred structure is that a spraying mechanism is provided on the top of the crystallization tank on one side of the first motor, and a collection box is placed horizontally on the bottom plate.
[0009] In addition, the preferred structure is that the connecting ball valve has a rotating chamber inside, an upper connecting port on the top of the connecting ball valve, a discharge port and a connecting pipe connected to both sides of the connecting ball valve respectively, the discharge port outlet is aligned with the collection box below, and a rotating port is opened on the valve body of the connecting ball valve located between the discharge port and the connecting pipe, and a sealing mechanism is provided at the rotating port.
[0010] In addition, a preferred structure is that the sealing mechanism includes a second motor, which is mounted on the base frame. A sealing block is connected to the end of the shaft at the output end of the second motor. The sealing block is set in the rotating cavity and rotates. The sealing block is used to block the discharge port and connect the pipeline.
[0011] In addition, a preferred structure is that the collection box has a collection cavity, and handles are symmetrically arranged on both sides of the collection box, with the collection cavity located below the discharge outlet.
[0012] Furthermore, in a preferred configuration, the spraying mechanism includes a transmission pipe disposed at the top of the crystallization tank, with spray heads symmetrically connected to the bottom of the transmission pipe, and the spray heads disposed at the top of the interior of the crystallization tank.
[0013] The beneficial effects of this utility model are as follows: The first motor drives the rotating shaft to rotate the scraper, which scrapes off the deposits on the inner wall of the crystallization tank in real time, preventing crystals from remaining on the inner wall. The spray head sprays cleaning liquid into the tank, which works in conjunction with the scraper to achieve integrated impurity removal and rinsing. Furthermore, the linkage between the sealing mechanism and the connecting ball valve enables rapid switching between transmission and waste discharge. This low-temperature evaporation crystallization equipment with self-cleaning function effectively improves cleaning efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the crystallization tank;
[0015] Figure 2 This is a partially enlarged structural diagram of the bottom of the crystallization tank;
[0016] Figure 3 This is a schematic diagram of the internal structure of the crystallizer;
[0017] Figure 4 This is a partially enlarged structural diagram of the top of the crystallization tank;
[0018] Figure 5 This is a schematic diagram of the structure after the sealing mechanism and the connecting ball valve are separated.
[0019] In the diagram: 1. Base plate, 2. Crystallization tank, 3. Cleaning mechanism, 31. First motor, 32. Rotating shaft, 33. Scraper, 4. Sealing mechanism, 41. Second motor, 42. Sealing block, 5. Collection box, 51. Handle, 52. Collection chamber, 6. Connecting ball valve, 61. Rotating chamber, 62. Discharge port, 63. Connecting pipe, 64. Upper connection port, 65. Rotating port, 7. Spraying mechanism, 71. Transmission pipe, 72. Spraying head. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-5 A low-temperature evaporation crystallization device with self-cleaning function includes a base plate 1, a crystallization tank 2 vertically arranged on the base plate 1, a cleaning mechanism 3 arranged on the top of the crystallization tank 2, a connecting ball valve 6 arranged on the bottom of the crystallization tank 2, and a sealing mechanism 4 for switching different flow channels arranged on the connecting ball valve 6. The cleaning mechanism 3 includes a first motor 31, which is arranged on the top of the crystallization tank 2. A rotating shaft 32 connected to the bottom output end of the first motor 31 extends vertically downward into the interior of the crystallization tank 2, and a scraper 33 is fixedly connected to the shaft 32 on the rod inside the crystallization tank 2. The scraper 33 contacts the inner wall of the crystallization tank 2 and is used to clean impurities on the inner wall of the crystallization tank 2.
[0022] In addition, a spraying mechanism 7 is provided on the top of the crystallization tank 2 on one side of the first motor 31, and a collection box 5 is placed horizontally on the bottom plate 1. The collection box 5 is used to clean up the impurities that flow down.
[0023] Furthermore, the connecting ball valve 6 has a rotating chamber 61 inside, an upper connecting port 64 on the top of the connecting ball valve 6, and a discharge port 62 and a connecting pipe 63 connected to both sides of the connecting ball valve 6 respectively. The outlet of the discharge port 62 is aligned with the collection box 5 below. The valve body of the connecting ball valve 6 located between the discharge port 62 and the connecting pipe 63 has a rotating port 65. A blocking mechanism 4 is provided at the rotating port 65. The blocking mechanism 4 includes a second motor 41, which is mounted on the base plate 1 frame. A blocking block 42 is connected to the end of the shaft at the output end of the second motor 41. The blocking block 42 is set in the rotating chamber 61 and rotates. The blocking block 42 is used to block the discharge port 62 and the connecting pipe 63. The blocking block 42 realizes the switching of different flow channels.
[0024] Meanwhile, the collection box 5 has a collection cavity 52, and handles 51 are symmetrically arranged on both sides of the collection box 5. The collection cavity 52 is located below the outlet of the discharge port 62, and the handles 51 make it easy for the operator to lift.
[0025] The spraying mechanism 7 includes a transmission pipe 71, which is located at the top of the crystallization tank 2. Spray heads 72 are symmetrically connected to the bottom of the transmission pipe 71. The spray heads 72 are located at the top inside the crystallization tank 2. The spray heads 72 facilitate the spraying of cleaning liquid, thereby facilitating the stirring of the scraper 33.
[0026] In this embodiment, when the inside of the crystallization tank 2 needs to be cleaned, the cleaning mechanism 3 is activated. The first motor 31 drives the rotating shaft 32 to rotate, which in turn drives the scraper 33 to rotate inside the crystallization tank 2. At the same time, the transmission tank 71 of the spraying mechanism 7 is connected to a water pump to deliver the cleaning liquid to the inside of the crystallization tank 2 through the spray head 72. After the scraper 33 scrapes off the impurities, the impurities are discharged from the bottom 2 of the crystallization tank along with the flowing cleaning liquid.
[0027] Furthermore, when the cleaning liquid is discharged, the sealing mechanism 4 operates, and the second motor 41 drives the sealing block 42 to rotate in the rotating chamber 61, so that the sealing block 42 blocks the connecting pipe 63, and the cleaning liquid is discharged from the discharge port 62 and flows into the collection chamber 52 below.
[0028] In this invention, the first motor 31 drives the rotating shaft 32 to rotate the scraper 33, which scrapes away the deposits on the inner wall of the crystallization tank 2 in real time, preventing crystals from remaining on the inner wall. The spray head 72 sprays cleaning liquid into the tank, which works in conjunction with the scraper 33 to achieve integrated impurity removal and rinsing. The linkage between the sealing mechanism 4 and the connecting ball valve 6 enables rapid switching between transmission and waste discharge. This low-temperature evaporation crystallization equipment with self-cleaning function effectively improves cleaning efficiency.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A low-temperature evaporation crystallization device with self-cleaning function, comprising a base plate (1), on which a crystallization tank (2) is vertically arranged, characterized in that, The crystallization tank (2) is provided with a cleaning mechanism (3) at the top and a connecting ball valve (6) at the bottom. The connecting ball valve (6) is provided with a blocking mechanism (4) for switching different flow channels. The cleaning mechanism (3) includes a first motor (31). The first motor (31) is located at the top of the crystallization tank (2). The rotating shaft (32) connected to the bottom output end of the first motor (31) extends vertically downward into the interior of the crystallization tank (2). A scraper (33) is fixedly connected to the rod inside the crystallization tank (2) and the scraper (33) contacts the inner wall of the crystallization tank (2).
2. The low-temperature evaporation crystallization equipment with self-cleaning function according to claim 1, characterized in that, The top of the crystallization tank (2) is provided with a spraying mechanism (7) located on one side of the first motor (31), and a collection box (5) is placed horizontally on the bottom plate (1).
3. The low-temperature evaporation crystallization equipment with self-cleaning function according to claim 1, characterized in that, The connecting ball valve (6) has a rotating chamber (61) inside and an upper connecting port (64) on the top. The connecting ball valve (6) has a discharge port (62) and a connecting pipe (63) connected to both sides. The outlet of the discharge port (62) is aligned with the collection box (5) below. The connecting ball valve (6) has a rotating port (65) on the valve body between the discharge port (62) and the connecting pipe (63). A sealing mechanism (4) is provided at the rotating port (65).
4. A low-temperature evaporation crystallization device with self-cleaning function according to claim 3, characterized in that, The sealing mechanism (4) includes a second motor (41), which is mounted on the base plate (1) frame. A sealing block (42) is connected to the end of the shaft of the output end of the second motor (41). The sealing block (42) is set in the rotating cavity (61) and rotates. The sealing block (42) is used to block the discharge port (62) and the connecting pipe (63).
5. A low-temperature evaporation crystallization device with self-cleaning function according to claim 3, characterized in that, The collection box (5) has a collection cavity (52) and handles (51) are symmetrically arranged on both sides of the collection box (5). The collection cavity (52) is located below the outlet of the discharge port (62).
6. A low-temperature evaporation crystallization device with self-cleaning function according to claim 2, characterized in that, The spraying mechanism (7) includes a transmission pipe (71), which is located at the top of the crystallization tank (2). Spray heads (72) are symmetrically connected to the bottom of the transmission pipe (71), and the spray heads (72) are located at the top inside the crystallization tank (2).