Evaporative crystallization device for vacuum salt production
By designing an evaporation crystallization device for vacuum salt making, the switching rack is controlled by a motor to connect and discharge the salt between different slots, the problem of difficulty in continuously releasing salt inside the evaporation tank in the prior art is solved, and the continuity of brine input and salt output is achieved.
Patent Information
- Application Number
- CN202422014951.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-20
AI Technical Summary
In the existing vacuum salt making process, it is difficult to continuously release the precipitated salt in the evaporation tank during the continuous transport of brine, which makes it difficult to ensure the continuity of the evaporation process.
An evaporation crystallization device for vacuum salt production is designed, and the switching rack is rotated by a motor control to rotate the receiving plate and the sealing rack, so that the precipitated salt inside the heating bed is discharged into the temporary storage chamber in the second notch and the first notch in the communication state, and then the salt is discharged from the inside of the temporary storage chamber to the inside of the third notch in the communication state.
The continuousness of brine input and salt output during the evaporation process is achieved, ensuring efficient precipitation and continuous output of salt.
Smart Images
Figure CN222983724U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum salt production, and specifically relates to an evaporation and crystallization device for vacuum salt production. Background Technique
[0002] Vacuum salt production refers to the evaporation of brine in an evaporation tank group under different "vacuum" states. Due to the pressure drop difference between the tanks, a decreasing boiling point is formed, so that heat is transferred sequentially, and a modern salt production method in which "secondary steam" can be reused multiple times. This method has the advantages of high degree of mechanization and automation, less heat energy consumption, and low production cost. The entire vacuum salt production process is divided into four major processes: brine treatment, evaporation and salt production, dehydration and drying, and packaging and storage.
[0003] The evaporation and salt production in vacuum salt production mainly adopts the four-effect vacuum evaporation and crystallization salt production process, which is an advanced and efficient salt manufacturing process. The four-effect vacuum evaporation and crystallization salt production process utilizes the principles of vacuum evaporation and crystallization. Through the device of a multi-effect evaporator, seawater or salt lake water is evaporated multiple times, and finally the crystallization and extraction of salt are realized. Compared with the traditional salt manufacturing process, the four-effect vacuum evaporation and crystallization salt production process has many remarkable advantages, such as high energy utilization efficiency, energy conservation and emission reduction, and excellent product quality.
[0004] When using an evaporation tank to produce salt in vacuum salt production, brine is introduced into the interior of the evaporation tank, and high-temperature steam is introduced into the interior of the evaporation tank, so that the liquid in the brine is evaporated and salt is precipitated. After the evaporation work of a fixed amount of brine needs to be completed once inside the existing evaporation tank, the precipitated salt is released. It is difficult to continuously release the precipitated salt during the continuous transportation of brine to ensure the continuity of the evaporation process. Summary of the Invention
[0005] In order to overcome the deficiencies of the prior art, the embodiments of the present application provide an evaporation and crystallization device for vacuum salt production. By controlling the rotation of the switching frame on the receiving tray and the sealing frame by a motor, the salt precipitated inside the heating bed is discharged into the interior of the temporary storage cavity when the second slot and the first slot are in a communicating state. Subsequently, the salt is discharged from the interior of the temporary storage cavity to the interior of the third slot when the release ring groove and the third slot are in a communicating state, and the technical effect of the continuity of the brine input and salt output during the evaporation process can be achieved.
[0006] The technical solution adopted by the embodiments of the present application to solve its technical problems is:
[0007] An evaporation and crystallization device for vacuum salt production, comprising a heating chamber and a heating bed, and the heating bed is arranged inside the heating chamber;
[0008] Among them, a receiving tray is processed at the center of the bottom of the heating bed. A first notch is opened inside the receiving tray. The bottom of the receiving tray is rotatably connected with a switching frame. A sealing frame is arranged at the bottom of the switching frame. A third notch is opened inside the sealing frame. A motor is assembled and connected to the center of the bottom of the sealing frame. The sealing frame is assembled to the bottom of the heating bed. One end of the rotating shaft of the receiving tray passes through the inside of the sealing frame and is inserted into the center of the bottom of the switching frame. The motor drives the switching frame to rotate between the receiving tray and the sealing frame, intermittently receiving the salt inside the heating bed and intermittently releasing the salt to the bottom through the sealing frame.
[0009] Preferably, an evaporation chamber is assembled and connected to the top of the heating chamber. A raw liquid pipe is processed on the outer wall of the bottom of the evaporation chamber. A discharge pipe is processed at the bottom of the sealing frame. The brine is transported into the inside of the heating bed through the raw liquid pipe. After the salt is precipitated inside the heating bed, it is discharged into the inside of the discharge pipe through the receiving tray, the switching frame and the sealing frame.
[0010] Preferably, a top end cover is assembled and connected to the top of the evaporation chamber. A secondary steam pipe is processed on the top of the top end cover. A heating steam pipe is processed on the outer wall of the top of the heating chamber. A discharge pipe is processed at the bottom of the heating bed. The heating steam is transported into the inside of the heating bed through the heating steam pipe. After evaporating the liquid in the brine inside the heating bed, the condensed water is discharged from the inside of the discharge pipe, and the evaporated liquid steam is discharged to the outside through the secondary steam pipe.
[0011] Preferably, a support chamber is assembled and connected to the bottom of the heating chamber. A coolant pipe is processed on the outer wall of the top of the support chamber. A bottom end cover is assembled and connected to the bottom of the support chamber. One end of the discharge pipe passes through the inside of the bottom end cover. One end of the discharge pipe is butt-jointed and fixed with one end of the coolant pipe. The condensed water enters the inside of the coolant pipe through one end of the discharge pipe.
[0012] Preferably, a heating cavity is processed on the top of the heating bed. A collection cavity is processed in the middle of the heating bed. A condensation ring groove is processed at the bottom of the heating bed. An air inlet is opened on one side of the top of the heating bed. A plurality of heating pipes are processed on the inner wall of the heating cavity.
[0013] Among them, both ends of the plurality of heating pipes are connected to communicate the top of the heating bed and the inside of the collection cavity. One end of the heating steam pipe is directly opposite to the inside of the air inlet. The bottom on one side of the condensation ring groove is connected to communicate with the inside of the discharge pipe.
[0014] Preferably, the cross-section of the collection cavity is an isosceles trapezoid. The top of the receiving tray is processed into a plane inclined towards one side of the first notch, guiding the salt to flow from the collection cavity to the top of the receiving tray and flowing into the inside of the first notch along the inclined surface of the top of the receiving tray.
[0015] Preferably, the inner wall of the bottom of the condensation ring groove is processed to be inclined toward the discharge pipe side. The condensed water formed by the heat exchange between the heating steam and the brine through the heating pipe inside the heating chamber accumulates inside the heating chamber and falls into the condensation ring groove, flowing along the inclined inner wall of the bottom of the condensation ring groove into the discharge pipe.
[0016] Preferably, a second notch is provided at the top of the switching frame, a temporary storage cavity is processed in the middle of the switching frame, and a release ring groove is provided at the bottom of the switching frame. The third notch and the first notch are arranged in a staggered manner and are adjacent when projected onto a plane. When the second notch is aligned with the first notch, the bottom of the switching frame blocks the third notch. When the top of the switching frame blocks the first notch, the release ring groove is in communication with the third notch.
[0017] In summary, the present utility model includes at least one of the following beneficial technical effects:
[0018] First, in the evaporation and crystallization device for vacuum salt production of the present utility model, the switching frame is controlled by a motor to rotate between the receiving tray and the sealing frame, so that the salt precipitated inside the heating bed is discharged into the temporary storage cavity when the second notch and the first notch are in communication. Subsequently, the salt is discharged from the temporary storage cavity into the third notch when the release ring groove and the third notch are in communication, which is convenient for ensuring the continuity of brine input and salt output during the evaporation process.
[0019] Second, in the evaporation and crystallization device for vacuum salt production of the present utility model, by processing a heating chamber at the top of the heating bed and a collection chamber in the middle, when the heating steam enters the heating chamber through the heating steam pipe and the air inlet, it can fully contact with multiple heating pipes, evaporate the liquid in the brine in the heating pipes, efficiently precipitate the salt and make it settle to the bottom, which is convenient for continuous precipitation of salt and supports the intermittent discharge of salt from the receiving tray, the switching frame and the sealing frame. Description of the Drawings
[0020] Figure 1 is the overall structural schematic diagram of the present utility model;
[0021] Figure 2 is the internal structural diagram of the present utility model in the working state;
[0022] Figure 3 is the cross-sectional view of the heating chamber and the heating bed of the present utility model;
[0023] Figure 4 is the cross-sectional view of the heating bed of the present utility model;
[0024] Figure 5 is the structural schematic diagram of the present utility model in the state where the receiving tray, the sealing frame and the switching frame are disconnected;
[0025] Figure 6This is a cross-sectional view of the switching rack of the present utility model.
[0026] Reference numerals: 1, secondary steam pipe; 2, top end cover; 3, stock solution pipe; 4, coolant pipe; 5, release ring groove; 6, support chamber; 7, heating chamber; 8, heating steam pipe; 9, evaporation chamber; 10, discharge pipe; 11, motor; 12, discharge pipe; 13, bottom end cover; 14, heating bed; 15, heating pipe; 16, heating cavity; 17, air inlet; 18, condensation ring groove; 19, collection cavity; 20, receiving tray; 21, switching rack; 22, sealing rack; 23, first notch; 24, second notch; 25, temporary storage cavity; 26, third notch. Detailed implementation manners
[0027] Example 1:
[0028] An evaporation and crystallization device for vacuum salt production, as Figure 3 , Figure 5 and Figure 6 shown, includes a heating chamber 7 and a heating bed 14 arranged inside the heating chamber 7. A receiving tray 20 is machined at the center of the bottom of the heating bed 14. A first notch 23 is opened inside the receiving tray 20. The bottom of the receiving tray 20 is rotatably connected to a switching rack 21. A sealing rack 22 is arranged at the bottom of the switching rack 21. A discharge pipe 12 is machined at the bottom of the sealing rack 22. A third notch 26 is opened inside the sealing rack 22. A motor 11 is assembled and connected to the center of the bottom of the sealing rack 22;
[0029] As Figure 5 and Figure 6 shown, a second notch 24 is opened at the top of the switching rack 21. A temporary storage cavity 25 is machined in the middle of the switching rack 21. A release ring groove 5 is opened at the bottom of the switching rack 21;
[0030] Among them, when the sealing rack 22 is assembled to the bottom of the heating bed 14, one end of the rotating shaft of the receiving tray 20 passes through the inside of the sealing rack 22 and is inserted into the center of the bottom of the switching rack 21, the third notch 26 and the first notch 23 can be arranged in a staggered manner and are adjacent in the projection onto a plane (as Figure 5 shown);
[0031] Secondly, by driving the switching frame 21 to rotate between the receiving tray 20 and the sealing frame 22 by using the motor 11, when the second slot 24 is aligned with the first slot 23, the bottom of the switching frame 21 blocks the third slot 26 (so that the salt precipitated inside the heating bed 14 can enter the inside of the temporary storage cavity 25 through the first slot 23 and the second slot 24 to complete collection). When the top of the switching frame 21 blocks the first slot 23, the release ring groove 5 is in communication with the third slot 26 (so that the salt collected inside the temporary storage cavity 25 can be released into the inside of the discharge pipe 12 through the third slot 26 and the release ring groove 5, which is convenient for the motor 11 to control the rotation of the switching frame 21). The salt inside the heating bed 14 is intermittently picked up and intermittently released to the bottom through the sealing frame 22.
[0032] In the evaporation and crystallization device for vacuum salt production of the present utility model, a motor 11 is assembled at the bottom of the heating bed 14, and one end of the rotating shaft of the motor 11 is inserted into the inside of the switching frame 21 between the sealing frame 22 and the receiving tray 20. During the process of the motor 11 controlling the rotation of the switching frame 21, the salt precipitated inside the heating bed 14 can be discharged into the inside of the temporary storage cavity 25 when the second slot 24 and the first slot 23 are in communication (the bottom of the release ring groove 5 is in a state blocked by the top of the sealing frame 22).
[0033] Subsequently, when the release ring groove 5 and the third slot 26 are in communication and the bottom of the first slot 23 is in a state blocked by the top of the switching frame 21, the salt is discharged from the inside of the temporary storage cavity 25 into the inside of the third slot 26 and finally continuously output from the inside of the discharge pipe 12, which is convenient for ensuring that during the continuous evaporation of the brine, the salt is continuously precipitated and intermittently discharged from the inside of the device, and ensuring the continuity of the brine input and salt output during the evaporation process.
[0034] Embodiment 2:
[0035] On the basis of Embodiment 1, as Figures 1-6 shown, the specific structure of the evaporation and crystallization device for vacuum salt production in this embodiment includes a heating bed 14. A heating cavity 16 is processed at the top of the heating bed 14, a collection cavity 19 is processed in the middle of the heating bed 14, a condensation ring groove 18 is processed at the bottom of the heating bed 14, an air inlet 17 is opened on one side of the top of the heating bed 14, and a plurality of heating tubes 15 are processed on the inner wall of the heating cavity 16;
[0036] As Figure 1 and Figure 2As shown, the evaporation chamber 9 is assembled and connected to the top of the heating chamber 7. The outer wall at the bottom of the evaporation chamber 9 is processed with a stock solution pipe 3. The top of the evaporation chamber 9 is assembled and connected to a top end cover 2. The top of the top end cover 2 is processed with a secondary steam pipe 1. The outer wall at the top of the heating chamber 7 is processed with a heating steam pipe 8. The bottom of the heating bed 14 is processed with a discharge pipe 10. The bottom of the heating chamber 7 is assembled and connected to a support chamber 6. The outer wall at the top of the support chamber 6 is processed with a coolant pipe 4. The bottom of the support chamber 6 is assembled and connected to a bottom end cover 13.
[0037] Among them, one end of the heating steam pipe 8 is directly opposite to the inside of the air inlet 17, and the heating steam is conveyed into the inside of the heating bed 14 through the heating steam pipe 8.
[0038] Secondly, the bottom on one side of the condensation ring groove 18 is communicated with the inside of the discharge pipe 10. After the liquid in the brine in the evaporation heating bed 14 is evaporated, the formed condensed water is discharged from the inside of the discharge pipe 10, and the evaporated liquid steam is discharged to the outside through the secondary steam pipe 1.
[0039] At the same time, in order to ensure that the condensed water quickly drains from the inside of the condensation ring groove 18, as Figure 4 shown, the inner wall of the bottom of the condensation ring groove 18 is processed to be inclined towards the discharge pipe 10. The condensed water formed by the heat exchange between the heating steam and the brine through the heating pipe 15 inside the heating cavity 16 accumulates inside the heating cavity 16 and falls into the inside of the condensation ring groove 18, and flows along the inclined inner wall of the bottom of the condensation ring groove 18 into the inside of the discharge pipe 10.
[0040] Furthermore, both ends of multiple heating pipes 15 connect the top of the heating bed 14 and the inside of the collection cavity 19. When the brine is conveyed into the inside of the heating bed 14 through the stock solution pipe 3, it can exchange heat with the heating steam in the heating cavity 16 inside the multiple heating pipes 15, so that the liquid in the brine evaporates, and salt is precipitated inside the heating bed 14, facilitating the discharge of the salt into the inside of the discharge pipe 12 through the receiving tray 20, the switching rack 21, and the sealing rack 22.
[0041] At the same time, in order to facilitate the concentrated discharge of the salt precipitated by evaporation inside the heating bed 14 from the inside of the heating bed 14 to the outside, as Figure 3 and Figure 4 shown, the cross-section of the collection cavity 19 is an isosceles trapezoid, and the top of the receiving tray 20 is processed into a plane inclined towards the first notch 23, facilitating the guiding of the salt to flow from the collection cavity 19 to the top of the receiving tray 20 and flowing into the inside of the first notch 23 along the inclined surface of the top of the receiving tray 20.
[0042] Furthermore, one end of the discharge pipe 12 passes through the inside of the bottom end cover 13, and one end of the discharge pipe 10 is butt-jointed and fixed to one end of the coolant pipe 4. The condensed water enters the inside of the coolant pipe 4 through one end of the discharge pipe 10.
[0043] The evaporation and crystallization device for vacuum salt production of the present utility model processes a heating cavity 16 at the top of the heating bed 14 (with a plurality of heating tubes 15 inside that connect the top of the heating bed 14 and the inside of the collection cavity 19 at both ends), and processes a collection cavity 19 in the middle (with an isosceles trapezoid cross-section). When the heating steam enters the inside of the heating cavity 16 through the heating steam pipe 8 and the air inlet 17, it can fully contact with the plurality of heating tubes 15 (which is beneficial to improving the salt precipitation efficiency), evaporate the liquid in the brine in the heating tubes 15, cause the salt to precipitate and settle to the bottom. Finally, with the guidance of the bottom inner wall of the collection cavity 19 and the inclined plane at the top of the receiving tray 20, it quickly drains into the inside of the first notch 23, facilitating the continuous precipitation of salt and intermittently discharging from the inside of the receiving tray 20, the switching frame 21 and the sealing frame 22.
[0044] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.
Claims
1. An evaporation crystallization device for vacuum salt production, characterized in that: include: Heating chamber (7); A heating bed (14) disposed inside the heating chamber (7); A receiving plate (20) is processed at the center of the bottom of the heating bed (14), a first notch (23) is opened inside the receiving plate (20), a switching frame (21) is rotatably connected to the bottom of the receiving plate (20), a sealing frame (22) is arranged at the bottom of the switching frame (21), a third notch (26) is opened inside the sealing frame (22), and a motor (11) is assembled and connected at the center of the bottom of the sealing frame (22); The sealing frame (22) is assembled to the bottom of the heating bed (14); one end of the rotating shaft of the receiving plate (20) passes through the interior of the sealing frame (22) and is inserted into the center of the bottom of the switching frame (21); the motor (11) drives the switching frame (21) to rotate between the receiving plate (20) and the sealing frame (22), intermittently receives salt from the interior of the heating bed (14), and intermittently releases the salt to the bottom through the sealing frame (22).
2. The evaporation crystallization device for vacuum salt production according to claim 1, characterized in that: The top of the heating chamber (7) is assembled and connected to an evaporation chamber (9), the outer wall of the bottom of the evaporation chamber (9) is processed with a raw liquid pipe (3), and the bottom of the sealing frame (22) is processed with a discharge pipe (12); The brine is transported to the interior of the heating bed (14) through the raw liquid pipe (3), and after salt is precipitated inside the heating bed (14), it is discharged to the interior of the discharge pipe (12) through the receiving plate (20), the switching frame (21) and the sealing frame (22).
3. The evaporation crystallization device for vacuum salt production according to claim 2, characterized in that: The top of the evaporation chamber (9) is assembled and connected with a top end cover (2), the top of the top end cover (2) is processed with a secondary steam pipe (1), the outer wall of the top of the heating chamber (7) is processed with a heating steam pipe (8), and the bottom of the heating bed (14) is processed with a discharge pipe (10); The heating steam is transported to the interior of the heating bed (14) through the heating steam pipe (8), and after evaporating the liquid in the brine in the heating bed (14), condensed water is formed and discharged from the interior of the discharge pipe (10), and the evaporated liquid steam is discharged to the outside through the secondary steam pipe (1).
4. The evaporation crystallization device for vacuum salt production according to claim 3, characterized in that: The top of the heating bed (14) is processed with a heating chamber (16), the middle of the heating bed (14) is processed with a collecting chamber (19), the bottom of the heating bed (14) is processed with a condensation ring groove (18), one side of the top of the heating bed (14) is provided with an air inlet (17), and the inner wall of the heating chamber (16) is processed with a plurality of heating tubes (15); Wherein, both ends of the plurality of heating tubes (15) connect the top of the heating bed (14) and the interior of the collecting chamber (19), one end of the heating steam pipe (8) faces the interior of the air inlet (17), and the bottom of one side of the condensation ring groove (18) is connected to the interior of the discharge pipe (10).
5. The evaporation crystallization device for vacuum salt production according to claim 4, characterized in that: The cross section of the collecting chamber (19) is an isosceles trapezoid, and the top of the receiving plate (20) is processed into a plane inclined toward one side of the first notch (23), so as to guide the salt to flow from the collecting chamber (19) to the top of the receiving plate (20), and flow into the interior of the first notch (23) along the inclined surface of the top of the receiving plate (20).
6. The evaporation crystallization device for vacuum salt production according to claim 4, characterized in that: The bottom inner wall of the condensation ring groove (18) is processed to be inclined toward one side of the discharge pipe (10). Condensate formed by heat exchange between the heating steam and the brine through the heating pipe (15) inside the heating chamber (16) accumulates inside the heating chamber (16) and falls into the condensation ring groove (18), and flows along the inclined inner wall at the bottom of the condensation ring groove (18) toward the inside of the discharge pipe (10).
7. The evaporation crystallization device for vacuum salt production according to claim 1, characterized in that: The top of the switching frame (21) is provided with a second notch (24), the middle of the switching frame (21) is processed with a temporary storage cavity (25), and the bottom of the switching frame (21) is provided with a release ring groove (5); The third notch (26) and the first notch (23) are staggered and are in an adjacent state when projected onto a plane; when the second notch (24) is directly opposite to the first notch (23), the bottom of the switching frame (21) blocks the third notch (26); when the top of the switching frame (21) blocks the first notch (23), the release annular groove (5) and the third notch (26) are in a connected state.
8. The evaporation crystallization device for vacuum salt production according to claim 3, characterized in that: The bottom of the heating chamber (7) is assembled and connected to the support chamber (6), a coolant pipe (4) is processed on the top outer wall of the support chamber (6), and the bottom of the support chamber (6) is assembled and connected to the bottom end cover (13); One end of the discharge pipe (12) passes through the interior of the bottom end cover (13), one end of the discharge pipe (10) is docked and fixed with one end of the coolant pipe (4), and condensed water enters the interior of the coolant pipe (4) through one end of the discharge pipe (10).