Continuous crystallization device for white pigment based on circulating cooling

Abstract

The utility model relates to based on the continuous crystallization equipment of white powder of carving of circulating cooling, including the box, the inside of box is provided with stirring cleaning structure, the stirring cleaning structure includes first motor, the top fixed mounting of box has first motor, the output of first motor is provided with gear, the inner top wall rotation of box is connected with stirring shaft. This based on the continuous crystallization equipment of white powder of carving of circulating cooling, through the setting of circulating cooling structure, can manufacture cooling water in circulation, and send into the inside circulation chamber of box, carry out cooling to the inside temperature of box, and cooperate the setting of stirring cleaning structure in the inside of box and carry out continuous crystallization process, and in the material taking stage makes, through the setting of stirring cleaning structure, can control two scrapers and the inside wall of box and carry out the adhesion, thereby the material deposited on the inner wall is scraped off, avoids the problem that the material deposited in the inner wall caused the waste of material.

Description

Technical Field

[0001] This utility model relates to the field of continuous crystallization technology of sodium calomel, specifically to a continuous crystallization device for sodium calomel based on circulating cooling. Background Technology

[0002] Sodium formaldehyde sulfoxylate, also known as sodium formaldehyde sulfoxylate, is a white orthorhombic crystalline or powdery chemical that is stable at room temperature. However, it decomposes in the presence of acid or high temperature to produce toxic gases such as formaldehyde and sulfur dioxide. In the production process of sodium formaldehyde sulfoxylate, a continuous crystallizer maintains the supersaturation of the solution within the metastable region through continuous feeding, crystallization, and discharge, thus achieving efficient and stable production.

[0003] However, during the production process of existing crystallizers, some of the material may accumulate on the inner wall of the equipment during the discharge stage, resulting in the inability to discharge all the material. This can lead to the normal operation of subsequent equipment and material loss. Therefore, a continuous crystallization equipment for styrax powder based on circulating cooling is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a continuous crystallization device for sodium bicarbonate based on circulating cooling. It has the advantages of easily scraping off the material deposited on the inner wall of the device during the discharge stage, thus solving the problem that material may be deposited on the inner wall during the discharge stage of existing devices, resulting in waste due to the inability to remove it in time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous crystallization device for sodium bicarbonate based on circulating cooling, comprising a box body, an equipment box fixedly installed on the top of the box body, a valve feed pipe fixedly installed on the top of the box body, a stirring and cleaning structure provided inside the box body, and a circulating cooling structure provided outside the box body;

[0006] The stirring and cleaning structure includes a first motor, which is fixedly installed on the top of the housing. A gear is provided at the output end of the first motor. A stirring shaft is rotatably connected to the inner top wall of the housing. A second motor is fixedly installed inside the stirring shaft. A threaded rod is rotatably connected inside the stirring shaft. A trapezoidal block is threadedly connected to the outer surface of the threaded rod. A first stirring rod is fixedly installed on the outer surface of the stirring shaft. An extension rod is movably connected inside the first stirring rod. A limit block is fixedly installed on the outer surface of the extension rod. A spring body is fixedly installed on the outer surface of the limit block. A scraper is fixedly installed at the end of the extension rod.

[0007] Furthermore, the circulating cooling structure includes a cooling jacket, a cooling jacket is fixedly installed at the bottom of the box, a circulating pump is fixedly installed at the top of the cooling jacket, a liquid storage chamber is opened inside the cooling jacket, a semiconductor cooler is fixedly installed inside the liquid storage chamber, and a circulating chamber is opened inside the box.

[0008] Furthermore, the front of the box is provided with an observation window, the front of the box is hinged with a door, the front of the equipment box is provided with a control panel, the output end of the first motor is rotatably connected to the inner top wall of the equipment box, there are two gears, and the top of the stirring shaft extends to the outside of the box and is rotatably connected to the inner top wall of the equipment box.

[0009] Furthermore, one of the gears is fixedly installed at the output end of the first motor, and the other gear is fixedly installed on the outer surface of the stirring shaft. The two gears mesh with each other. The top of the threaded rod is fixedly connected to the output end of the second motor. Four first stirring rods are fixedly installed on the left and right sides of the stirring shaft, and an extension rod is movably connected inside each first stirring rod. A limit block is fixedly installed on the outer surface of each extension rod.

[0010] Furthermore, each of the four extension rods extends into the interior of the stirring shaft on one opposite side, and each of the four extension rods is rotatably connected to a ball bearing. The outer surface of the ball bearing is movably connected to the outer surface of the trapezoidal block. The outer surfaces of the four limiting blocks are movably connected to the interior of the four first stirring rods, and the outer surfaces of the four limiting blocks are fixedly connected to the interior of the four first stirring rods by four spring bodies. Two scrapers are fixedly installed on opposite sides of each of the four extension rods, and second stirring rods are fixedly installed on both the left and right sides of the stirring shaft.

[0011] Furthermore, a valve replenishment pipe is fixedly installed on the left side of the cooling jacket, a drain pipe is fixedly installed on the back of the cooling jacket, the bottom of the circulation pump is fixedly connected to the inside of the liquid storage chamber through a water pumping pipe, the right side of the circulation pump is fixedly connected to the inside of the circulation chamber through a water supply pipe, a through hole is provided between the liquid storage chamber and the circulation chamber, and there are two semiconductor coolers, the cooling ends of the two semiconductor coolers are located inside the liquid storage chamber, and the heat dissipation ends of the two semiconductor coolers are located on the outer surface of the cooling jacket.

[0012] Beneficial effects

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This continuous crystallization equipment for sodium bicarbonate based on circulating cooling can generate cooling water through a circulating cooling structure and send it into the internal circulating chamber of the chamber to cool the internal temperature. Combined with a stirring and cleaning structure, the continuous crystallization process is carried out inside the chamber. During the material unloading stage, the stirring and cleaning structure can control two scrapers to adhere to the inner wall of the chamber, thereby scraping off the material deposited on the inner wall and avoiding the problem of material waste caused by material accumulation on the inner wall. Attached Figure Description

[0015] Figure 1 This is a partial three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 3 This is a front sectional view of the present invention.

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Box body; 2. Equipment box; 3. Valve feed pipe; 4. Stirring and cleaning structure; 401. First motor; 402. Gear; 403. Stirring shaft; 404. Second motor; 405. Threaded rod; 406. Trapezoidal block; 407. First stirring rod; 408. Extension rod; 409. Limiting block; 410. Spring body; 411. Scraper; 5. Circulating cooling structure; 501. Cooling jacket; 502. Circulating pump; 503. Liquid storage chamber; 504. Semiconductor refrigerator; 505. Circulating chamber. 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. 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.

[0021] Please see Figures 1-4 The continuous crystallization equipment for succulent powder based on circulating cooling includes a box 1, an equipment box 2 fixedly installed on the top of the box 1, a valve feed pipe 3 fixedly installed on the top of the box 1, a stirring and cleaning structure 4 inside the box 1, and a circulating cooling structure 5 outside the box 1.

[0022] The stirring and cleaning structure 4 includes a first motor 401, which is fixedly installed on the top of the housing 1. A gear 402 is provided at the output end of the first motor 401. A stirring shaft 403 is rotatably connected to the inner top wall of the housing 1. A second motor 404 is fixedly installed inside the stirring shaft 403. A threaded rod 405 is rotatably connected inside the stirring shaft 403. A trapezoidal block 406 is threadedly connected to the outer surface of the threaded rod 405. A first stirring rod 407 is fixedly installed on the outer surface of the stirring shaft 403. An extension rod 408 is movably connected inside the first stirring rod 407. A limit block 409 is fixedly installed on the outer surface of the extension rod 408. A spring body 410 is fixedly installed on the outer surface of the limit block 409. A scraper 411 is fixedly installed at the end of the extension rod 408.

[0023] Furthermore, the circulating cooling structure 5 includes a cooling jacket 501, a cooling jacket 501 fixedly installed at the bottom of the housing 1, a circulating pump 502 fixedly installed at the top of the cooling jacket 501, a liquid storage chamber 503 opened inside the cooling jacket 501, a semiconductor cooler 504 fixedly installed inside the liquid storage chamber 503, and a circulating chamber 505 opened inside the housing 1.

[0024] Specifically, such as Figure 1 As shown, the raw material is fed into the interior of the box 1 through the valve feed pipe 3. Then, the semiconductor coolers 504 on both sides are turned on to cool the coolant inside the liquid storage chamber 503. Then, the cooled coolant is pumped out of the liquid storage chamber 503 by the circulation pump 502 and sent into the circulation chamber 505 until the circulation chamber 505 is full. Then, the cooled coolant is sent back to the liquid storage chamber 503 through the opening, and then cooled again by the semiconductor cooler 504, thus forming a circulating cooling.

[0025] Specifically, such as Figure 3 As shown, the first motor 401 is then turned on and engaged with the gear 402 to drive the stirring shaft 403 to rotate. The rotation of the stirring shaft 403 drives the first stirring rod 407 and the second stirring rod to rotate, thereby completing the continuous crystallization process.

[0026] Specifically, such as Figure 3As shown, after the crystallization process is completed, turning on the second motor 404 will drive the threaded rod 405 to rotate. The rotation of the threaded rod 405 will control the trapezoidal block 406 to move inside the stirring shaft 403. The movement of the trapezoidal block 406, in conjunction with the ball bearings, will drive the extension rod 408 to move. The movement of the extension rod 408 will drive the limiting block 409 to move inside the first stirring rod 407 and compress the spring body 410. The movement of the extension rod 408 will cause the scraper 411 to gradually approach the inner wall of the box 1 until it is in contact with the inner wall of the box 1. In conjunction with the first motor 401 driving the stirring shaft 403 and the scraper 411 to rotate, the material deposited on the inner wall can be scraped off, avoiding the material from accumulating inside the box 1, which would not only waste the material but also affect the quality of the materials used in subsequent production.

[0027] Specifically, such as Figure 3 As shown, after the inner wall is scraped, the second motor 404 is controlled to rotate in the opposite direction, which controls the trapezoidal block 406 to rise. Then, the extension rod 408, under the action of the spring body 410, works with the limiting block 409 to retract the scraper 411, so that the scraper 411 is separated from the inner wall of the box 1. This avoids the scraper 411 from sticking to the inside of the box 1 during normal use, which would increase friction and affect the normal stirring inside the device.

[0028] Specifically, such as Figure 2 As shown, the control panel is electrically connected to the internal power-operated equipment of the device. It sends control commands to each component through control signal lines. These signal lines can be analog signal lines such as 4-20mA current signals, digital signal lines such as RS485 communication interfaces, or simple switch signal lines. The control signals issued by the control panel are transmitted to the control units of each component through the signal lines. By operating the control system, the control panel controls the components inside the device, enabling the start and stop operations of each component. After receiving a start command, the controller sends corresponding control signals to each component to start them. When a stop command is received, a stop signal is sent to stop each component from working. The operating parameters of each component are set on the control panel interface. These parameter settings are converted into corresponding control signals and sent to the control units of each component, thereby achieving precise adjustment of the component's operating status. The control panel has a monitoring function for the operating status of each component and can display the operating parameters and status information of each component in real time.

[0029] Specifically, such as Figure 3 As shown, the second motor 404 is a forward and reverse motor. A forward and reverse motor is a motor that can achieve forward and reverse rotation. The working principle of a forward and reverse motor is based on changing the phase sequence of the motor power supply to change the direction of rotation. In a three-phase asynchronous motor, the direction of rotation of the motor can be changed by swapping any two phases. This operation is called commutation, which allows the motor to run in different directions as needed.

[0030] In summary, this continuous crystallization equipment for sodium bicarbonate based on circulating cooling, through the setting of the circulating cooling structure 5, can generate cooling water in a circulating manner and send it into the internal circulating chamber 505 of the box 1 to cool the internal temperature of the box 1. In conjunction with the setting of the stirring and cleaning structure 4, the continuous crystallization process is carried out inside the box 1. During the material unloading stage, through the setting of the stirring and cleaning structure 4, the two scrapers 411 can be controlled to adhere to the inner wall of the box 1, thereby scraping off the material deposited on the inner wall and avoiding the problem of material waste caused by material deposition on the inner wall.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous crystallization device for sodium bicarbonate based on circulating cooling, comprising a housing (1), characterized in that: The top of the box (1) is fixedly installed with an equipment box (2), the top of the box (1) is fixedly installed with a valve feed pipe (3), the inside of the box (1) is provided with a stirring and cleaning structure (4), and the outside of the box (1) is provided with a circulating cooling structure (5). The stirring and cleaning structure (4) includes a first motor (401). The first motor (401) is fixedly installed on the top of the box (1). A gear (402) is provided at the output end of the first motor (401). A stirring shaft (403) is rotatably connected to the inner top wall of the box (1). A second motor (404) is fixedly installed inside the stirring shaft (403). A threaded rod (405) is rotatably connected inside the stirring shaft (403). A trapezoidal block (406) is threadedly connected to the outer surface of the threaded rod (405). A first stirring rod (407) is fixedly installed on the outer surface of the stirring shaft (403). An extension rod (408) is movably connected inside the first stirring rod (407). A limit block (409) is fixedly installed on the outer surface of the extension rod (408). A spring body (410) is fixedly installed on the outer surface of the limit block (409). A scraper (411) is fixedly installed at the end of the extension rod (408).

2. The continuous crystallization equipment for sodium bicarbonate based on circulating cooling according to claim 1, characterized in that: The circulating cooling structure (5) includes a cooling jacket (501), the bottom of the housing (1) is fixedly installed with the cooling jacket (501), the top of the cooling jacket (501) is fixedly installed with a circulating pump (502), a liquid storage chamber (503) is opened inside the cooling jacket (501), a semiconductor cooler (504) is fixedly installed inside the liquid storage chamber (503), and a circulating chamber (505) is opened inside the housing (1).

3. The continuous crystallization equipment for sodium bicarbonate based on circulating cooling according to claim 1, characterized in that: The front of the box (1) is provided with an observation window, and the front of the box (1) is hinged with a door. The front of the equipment box (2) is provided with a control panel. The output end of the first motor (401) is rotatably connected to the inner top wall of the equipment box (2). There are two gears (402). The top of the stirring shaft (403) extends to the outside of the box (1) and is rotatably connected to the inner top wall of the equipment box (2).

4. The continuous crystallization equipment for sodium bicarbonate based on circulating cooling according to claim 1, characterized in that: One of the gears (402) is fixedly installed at the output end of the first motor (401), and the other gear (402) is fixedly installed on the outer surface of the stirring shaft (403). The two gears (402) mesh with each other. The top of the threaded rod (405) is fixedly connected to the output end of the second motor (404). Four first stirring rods (407) are fixedly installed on the left and right sides of the stirring shaft (403). An extension rod (408) is movably connected inside each first stirring rod (407). A limit block (409) is fixedly installed on the outer surface of each extension rod (408).

5. The continuous crystallization equipment for sodium bicarbonate based on circulating cooling according to claim 1, characterized in that: Each of the four extension rods (408) extends to the interior of the stirring shaft (403) on one opposite side. Each of the four extension rods (408) is rotatably connected to a ball bearing on one opposite side. The outer surface of the ball bearing is movably connected to the outer surface of the trapezoidal block (406). The outer surfaces of the four limiting blocks (409) are movably connected to the interior of the four first stirring rods (407). The outer surfaces of the four limiting blocks (409) and the interior of the four first stirring rods (407) are fixedly connected by four spring bodies (410). Two scrapers (411) are fixedly installed on the opposite sides of the four extension rods (408). Second stirring rods are fixedly installed on both the left and right sides of the stirring shaft (403).

6. The continuous crystallization equipment for sodium bicarbonate based on circulating cooling according to claim 2, characterized in that: A valve replenishment pipe is fixedly installed on the left side of the cooling jacket (501), and a drain pipe is fixedly installed on the back of the cooling jacket (501). The bottom of the circulation pump (502) is fixedly connected to the inside of the liquid storage chamber (503) through a water pumping pipe. The right side of the circulation pump (502) is fixedly connected to the inside of the circulation chamber (505) through a water supply pipe. A through hole is provided between the liquid storage chamber (503) and the circulation chamber (505). There are two semiconductor coolers (504). The cooling ends of the two semiconductor coolers (504) are located inside the liquid storage chamber (503), and the heat dissipation ends of the two semiconductor coolers (504) are located on the outer surface of the cooling jacket (501).

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