Low-content sodium formate purification equipment

Abstract

The utility model discloses low-content sodium formate purification equipment which comprises a purification cylinder, one end of the purification cylinder is provided with a first processing assembly and a second processing assembly, the first processing assembly comprises a first motor, the first motor is fixed at the bottom end of the purification cylinder and rotates through a driving gear and a driven gear, and the driven gear is provided with a first rotating rod; a first treatment cavity and a second treatment cavity are formed in the purification barrel, one end of the first rotating rod extends into the purification barrel and is connected with the inner wall of the first treatment cavity, and a plurality of filter screens are arranged at the end, located in the first treatment cavity, of the first rotating rod through bearings; the first treatment assembly performs fine filtration on a coarse sodium formate solution through a filter screen to effectively remove impurities, meanwhile, a cleaning scraper blade is matched with a blow-off pipe to prevent the filter screen from being blocked, the filtering efficiency is ensured, a cooling cavity and a semiconductor chilling plate interact, the cooling temperature is accurately controlled, sodium formate is fully crystallized and separated out, and the quality of sodium formate is improved. The crystal purity and the yield are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of sodium formate purification technology, and in particular to a low-content sodium formate purification equipment. Background Technology

[0002] Sodium formate (CHNaO2) is an important chemical raw material widely used in printing and dyeing, pharmaceuticals, leather, electroplating, agriculture, food, and many other fields. During chemical production, due to various reasons, the sodium formate content is often low, containing impurities that affect its quality and application value. Low-content sodium formate purification equipment uses specific techniques, such as distillation, extraction, and crystallization, to remove impurities from low-content sodium formate, improving its purity to meet industrial or product standards and satisfying the demand for high-purity sodium formate in different industries.

[0003] In existing sodium formate purification processes, especially when purification is achieved through crystallization, a significant problem exists: a small amount of non-crystallized sodium formate remains. This non-crystallized sodium formate usually exists in a dissolved state in the mother liquor, leading to a decrease in sodium formate yield. It also affects the purity and quality stability of the final product. Because sodium formate behaves similarly to other impurities during the crystallization process, or because the crystallization conditions are not precisely controlled, some sodium formate cannot be completely crystallized and precipitated. Furthermore, non-crystallized sodium formate may interact with impurities in subsequent processing, further reducing product quality. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that in the existing sodium formate purification process, a small amount of uncrystallized sodium formate remains, and the uncrystallized sodium formate may interact with impurities in subsequent processing, reducing product quality.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A low-content sodium formate purification device includes a purification cylinder, a first processing component at one end of the purification cylinder, and a second processing component connected to the other end of the purification cylinder. The first processing component includes a first motor, which is fixedly mounted at the bottom end of the purification cylinder via a mounting bracket. The output shaft of the first motor is equipped with a drive gear, which is meshed with a driven gear. A first rotating rod is mounted on the driven gear. The purification cylinder has a first processing chamber and a second processing chamber inside. One end of the first rotating rod extends into the interior of the purification cylinder and is connected to the inner wall of the first processing chamber. The end of the first rotating rod located inside the first processing chamber is equipped with multiple filter screens via bearings, and the filter screens are fixedly mounted on the inner wall of the first processing chamber.

[0007] Furthermore, multiple cleaning scrapers are connected to the first rotating rod, and the cleaning scrapers are in contact with the inner wall of the first processing chamber and one end of the filter screen respectively. A drain pipe is connected to the purification cylinder, and one end of the drain pipe is close to the upper end of the filter screen. A first stirring blade is provided on the first rotating rod, and a cooling chamber is opened in the middle of the purification cylinder.

[0008] Furthermore, the cooling chamber is connected to a first delivery pipe and a second delivery pipe. One end of the first delivery pipe and the second delivery pipe is connected to a processing cylinder, and the processing cylinder is fixedly mounted on the outer wall of the purification cylinder by a mounting bracket. A semiconductor cooling chip is embedded in the processing cylinder, and the cold end of the semiconductor cooling chip is located inside the processing cylinder. A first delivery pump is installed on the first delivery pipe. One end of the first processing chamber is connected to a plurality of first output pipes, and the first output pipes extend into the interior of the second processing chamber.

[0009] Furthermore, a first control valve is provided on the first output pipe, a separation cylinder is provided on the first rotating rod, one end of the separation cylinder is connected to the inner wall of the second processing chamber, and the first output pipe is located directly above the separation cylinder. The second processing chamber is connected to a third output pipe, one end of the third output pipe extends into the interior of the first processing chamber, a second output pump is provided on the third output pipe, a conveying groove is provided at one end of the first rotating rod, a third motor is embedded in the inner wall of the conveying groove, the output shaft of the third motor is connected to a third rotating rod through a coupling, a spiral conveying blade is provided at one end of the third rotating rod, and the spiral conveying blade contacts the inner wall of the conveying groove, an inlet is provided in the conveying groove, and a guide cover is provided at one end of the first rotating rod.

[0010] Furthermore, the second processing component includes a dissolving cylinder, which is mounted at one end of the purification cylinder via a fixing frame. A second motor is mounted at one end of the dissolving cylinder, and a second rotating rod is mounted on the output shaft of the second motor via a coupling. One end of the second rotating rod extends into the interior of the dissolving cylinder and is connected to the inner wall of the dissolving cylinder.

[0011] Furthermore, the second rotating rod is located inside the dissolving cylinder and is equipped with a second stirring blade. A heating tube is wound around the outside of the dissolving cylinder, and conductive blocks are arranged at equal intervals on the heating tube. One end of the conductive block extends into the inside of the dissolving cylinder, and one end of the dissolving cylinder is connected to a first feeding pipe, a second feeding pipe, and an exhaust pipe.

[0012] Furthermore, one end of the dissolving cylinder is connected to a second output pipe, one end of which is connected to the purification cylinder. A second control valve is installed on the second output pipe, and a controller is installed on the outer wall of the purification cylinder.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The first processing component of this application uses a filter screen to finely filter the crude sodium formate solution, effectively removing impurities. At the same time, the cleaning scraper and the drain pipe can prevent the filter screen from clogging and ensure filtration efficiency. The cooling chamber interacts with the semiconductor refrigeration chip to precisely control the cooling temperature, allowing sodium formate to fully crystallize and precipitate, significantly improving crystal purity and yield, and solving the problem of insufficient purity caused by uncrystallized sodium formate residue in traditional crystallization methods.

[0015] 2. The dissolving cylinder of the second processing component of this application uniformly heats and dissolves crude sodium formate through heating tubes and conductive blocks. The second stirring blades ensure thorough and uniform dissolution, avoiding the impact of incomplete dissolution on subsequent purification effects. At the same time, the heating process can remove some volatile impurities and improve the purity of the solution. The first and second feeding pipes facilitate the separate addition of raw materials and solvents, while the exhaust pipe can discharge the waste gas generated during the dissolution process, providing a high-quality solution for subsequent efficient purification and ensuring the purity and quality stability of the final product from the source.

[0016] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached image description:

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only nine of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of this application. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the first processing component;

[0021] Figure 4 Side section of a partial structure of the first processing component Figure 1 ;

[0022] Figure 5 Side section of a partial structure of the first processing component Figure 2 ;

[0023] Figure 6 Side section of a partial structure of the first processing component Figure 3 ;

[0024] Figure 7Side section of a partial structure of the first processing component Figure 4 ;

[0025] Figure 8 This is a side sectional view of the second processing component structure;

[0026] Figure 9 This is an exploded view of the second processing component. In the figure: 1-Purification cylinder, 2-First processing component, 3-Second processing component, 4-First processing chamber, 5-Second processing chamber, 6-Drain pipe, 7-Cooling chamber, 8-First control valve, 9-Inlet, 10-Guide cover, 11-Second control valve, 12-Controller; 201-First motor, 202-Driving gear, 203-Driven gear, 204-First rotating rod, 205-Filter screen, 206-Cleaning scraper, 207-First stirring blade, 208-First conveying pipe, 209-Second conveying pipe, 210-Processing cylinder, 211-Semiconductor cooling chip, 212-First conveying pump, 213-First output pipe, 214-Separation cylinder, 215-Third output pipe, 216-Second output pump, 217-Third motor, 218-Third rotating rod, 219-Spiral conveying blade; 301-Dissolving cylinder, 302-Second motor, 303-Second rotating rod, 304-Second stirring blade, 305-Heating tube, 306-Conduction block, 307-First feeding pipe, 308-Second feeding pipe, 309-Exhaust pipe, 310-Second output pipe. Detailed Implementation

[0027] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information. Example

[0030] like Figure 1-9 As shown, a low-content sodium formate purification device is disclosed, including a purification cylinder 1, a first processing component 2 is provided on one side of the purification cylinder 1, and a second processing component 3 is connected to one end of the purification cylinder 1.

[0031] The first processing component 2 includes a first motor 201, which is fixedly mounted at the bottom of the purification cylinder 1 via a mounting bracket. The output shaft of the first motor 201 is equipped with a drive gear 202, which meshes with a driven gear 203. A first rotating rod 204 is mounted on the driven gear 203. The purification cylinder 1 has a first processing chamber 4 and a second processing chamber 5. One end of the first rotating rod 204 extends into the purification cylinder 1 and connects to the inner wall of the first processing chamber 4. Two filter screens 205 are mounted on the end of the first rotating rod 204 located inside the first processing chamber 4 via bearings. These filter screens are used to filter the dissolved crude sodium formate, thereby ensuring the purification accuracy. The filter screens 205 are configured according to actual usage requirements. The selection is not specified, and the filter screen 205 is fixedly installed on the inner wall of the first processing chamber 4. Two cleaning scrapers 206 are connected to the first rotating rod 204 to clean the first processing chamber 4 and the filter screen 205, thereby avoiding the problem of adhesion and blockage on the inner wall. The cleaning scrapers 206 contact the inner wall of the first processing chamber 4 and one end of the filter screen 205 respectively. A drain pipe 6 is connected to the purification cylinder 1. In actual use, the drain pipe 6 is connected to a pump body (not shown in detail in the figure) to collect the impurities cleaned by the cleaning scrapers 206, thereby ensuring the filtration effect of the filter screen 205. One end of the drain pipe 6 is close to the upper end of the filter screen 205. A first stirring blade 207 is provided on the first rotating rod 204. A cooling chamber 7 is provided in the middle for circulating the cooling liquid, thereby ensuring that sodium formate precipitates in crystal form and further ensuring the purification effect. The cooling chamber 7 is connected to a first delivery pipe 208 and a second delivery pipe 209. One end of the first delivery pipe 208 and the second delivery pipe 209 is connected to a processing cylinder 210, which is fixedly mounted on the outer wall of the purification cylinder 1 by a mounting bracket. A semiconductor cooling chip 211 is embedded in the processing cylinder 210. The semiconductor cooling chip 211 is a conventional structure and will not be described in detail. In actual use, the semiconductor cooling chip 211 is connected to a temperature control device via wires. The temperature control device is a conventional temperature control structure and will not be described in detail. It is used to adjust the cooling temperature. The cold end of the cold plate 211 is located inside the processing cylinder 210. A first delivery pump 212 is installed on the first delivery pipe 208. One end of the first processing chamber 4 is connected to two first output pipes 213 for outputting crystallized or non-crystallized sodium formate. The first output pipes 213 extend into the interior of the second processing chamber 5. A first control valve 8 is installed on the first output pipe 213 to prevent leakage. A separation cylinder 214 is installed on the first rotating rod 204 for separating non-crystallized sodium formate. One end of the separation cylinder 214 is connected to the inner wall of the second processing chamber 5, and the first output pipe 213 is located directly above the separation cylinder 214. The second processing chamber 5 is connected to a third output pipe 215 for recrystallizing the separated non-crystallized sodium formate.To avoid wasting sodium formate, one end of the third output pipe 215 extends into the interior of the first processing chamber 4. A second output pump 216 is installed on the third output pipe 215. During actual use, the second output pump 216 is equipped with a valve body to prevent damage to its interior from the solution when it is not in operation. A conveying groove is provided at one end of the first rotating rod 204. A third motor 217 is embedded in the inner wall of the conveying groove. The output shaft of the third motor 217 is connected to a third rotating rod 218 via a coupling. A spiral conveying blade 219 is provided at one end of the third rotating rod 218 for conveying the purified and crystallized sodium formate. The spiral conveying blade 219 contacts the inner wall of the conveying groove. An inlet 9 is provided in the conveying groove for inputting the purified and crystallized sodium formate. A guide cover 10 is provided at one end of the first rotating rod 204 to guide the output purified and crystallized sodium formate into the container below. Example

[0032] like Figure 1-9 As shown, this embodiment is based on Embodiment 1, and the second processing component 3 is described in detail below: The second processing component 3 includes a dissolving cylinder 301 for dissolving crude sodium formate and solution. The dissolving cylinder 301 is mounted at one end of the purification cylinder 1 via a fixing frame. A second motor 302 is mounted at one end of the dissolving cylinder 301. The output shaft of the second motor 302 is coupled to a second rotating rod 303. One end of the second rotating rod 303 extends into the interior of the dissolving cylinder 301 and is connected to the inner wall of the dissolving cylinder 301. A second stirring blade 304 is mounted inside the dissolving cylinder 301 to ensure the dissolving effect. A heating tube 305 is wound around the outside of the dissolving cylinder 301 to ensure the dissolving effect and to volatilize some impurities, thus ensuring the purification effect. In actual use, the heating tube 305 is connected to a temperature control device via a wire. The temperature control device is a conventional temperature control device. The structure is not described in detail here. It is used to regulate the heat and temperature. Conductive blocks 306 are set at equal intervals on the upper part of the heating tube 305. The conductive blocks 306 are made of metal with good conductivity. A sealing structure is set between the conductive blocks 306 and the dissolving cylinder 301 to prevent leakage during dissolution. One end of the conductive blocks 306 extends into the interior of the dissolving cylinder 301. One end of the dissolving cylinder 301 is connected to the first feeding pipe 307, the second feeding pipe 308, and the exhaust pipe 309 for conveying crude sodium formate, conveying the solution, and outputting the volatile waste gas. One end of the dissolving cylinder 301 is connected to the second output pipe 310 for conveying the heated and dissolved mixture to the interior of the purification cylinder 1. One end of the second output pipe 310 is connected to the purification cylinder 1. A second control valve 11 is set on the second output pipe 310 to prevent leakage. A controller 12 is set on the outer wall of the purification cylinder 1.

[0033] The overall technical solution formed by combining the above embodiments is used as follows:

[0034] First, crude sodium formate and its solution enter the dissolving cylinder 301 through the first feeding pipe 307 and the second feeding pipe 308. At this time, the second motor 302 starts, driving the second rotating rod 303 to rotate. The second stirring blade 304 then stirs the crude sodium formate and its solution, ensuring complete dissolution. Simultaneously, the heating pipe 305 heats the inside of the dissolving cylinder 301, and the conductive block 306 transfers heat to the inside of the dissolving cylinder 301, further improving the dissolution effect and evaporating some impurities. This process ensures efficient dissolution of the crude sodium formate and preliminary removal of impurities. The dissolved and heated mixed solution is then transported to the purification cylinder 1 through the second output pipe 310. The second control valve 11 controls the opening and closing of the second output pipe 310, ensuring that the crystallized sodium formate can smoothly enter the first processing chamber 4. Inside the first processing chamber 4, the first motor 201 starts, driving the drive gear 202 to rotate, meshing with the driven gear 203, causing the first rotating rod 204 to rotate. Then, the filter screen 205... The mixed solution is filtered to remove impurities. At the same time, the cleaning scraper 206 rotates with the first rotating rod 204 to clean the impurities on the inner wall of the first processing chamber 4 and the filter screen 205 to prevent clogging. The cleaned-off impurities are discharged from the equipment through the drain pipe 6.

[0035] After filtration, the first stirring blade 207 rotates with the first rotating rod 204 to stir the mixed solution and promote the crystallization process of sodium formate. The cooling liquid in the cooling chamber 7 circulates between the processing cylinder 210 and the cooling chamber 7 through the first conveying pipe 208 and the second conveying pipe 209. The cold end of the semiconductor refrigeration chip 211 cools the cooling liquid in the processing cylinder 210. The first delivery pump 212 delivers the cooling liquid to the cooling chamber 7, thereby cooling the mixed solution in the purification cylinder 1 and causing sodium formate to precipitate in crystal form. The crystallized sodium formate is output to the second processing chamber 5 through the first output pipe 213. The first control valve 8 controls the opening and closing of the first output pipe 213 to ensure that the crystallized sodium formate can smoothly enter the second processing chamber 5. After crystallization, the sodium formate enters the separation cylinder 214, which separates the uncrystallized sodium formate. The third output pipe 215 delivers the separated uncrystallized sodium formate back to the first processing chamber 4. The second output pump 216... It provides power for transport, enables the recrystallization of amorphous sodium formate, and improves the yield of sodium formate;

[0036] After purification and crystallization, sodium formate enters the conveying tank through inlet 9. The third motor 217 is started, which drives the third rotating rod 218 to rotate. The spiral conveying blades 219 then convey the purified and crystallized sodium formate. The purified and crystallized sodium formate is then guided by the guide cover 10 to smoothly enter the container below, thus completing the entire purification process.

[0037] Throughout the purification process, the controller 12 centrally controls the first motor 201, the third motor 217, the second motor 302, the first delivery pump 212, the second output pump 216, the first control valve 8, the second control valve 11, as well as the heating tube 305, the temperature control equipment, and the semiconductor refrigeration chip 211, ensuring the coordinated operation of all parts of the equipment and achieving efficient purification of sodium formate.

[0038] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A low-content sodium formate purification device, characterized in that, The device includes a purification cylinder (1), and a first processing component (2) is provided on one side of the purification cylinder (1). The first processing component (2) includes a first motor (201). The first motor (201) is fixedly installed at the bottom end of the purification cylinder (1) by a mounting bracket. The output shaft of the first motor (201) is provided with a drive gear (202). A driven gear (203) is meshed on the drive gear (202). A first rotating rod (204) is provided on the driven gear (203). A first processing chamber (4) and a second processing chamber (5) are opened inside the purification cylinder (1). One end of the first rotating rod (204) extends into the interior of the purification cylinder (1) and is connected to the inner wall of the first processing chamber (4). A plurality of filter screens (205) are provided at one end of the first rotating rod (204) located inside the first processing chamber (4) through a bearing. The filter screens (205) are fixedly installed on the inner wall of the first processing chamber (4).

2. The low-content sodium formate purification equipment according to claim 1, characterized in that: Multiple cleaning scrapers (206) are connected to the first rotating rod (204), and the cleaning scrapers (206) are in contact with the inner wall of the first processing chamber (4) and one end of the filter screen (205). A drain pipe (6) is connected to the purification cylinder (1), and one end of the drain pipe (6) is close to the upper end of the filter screen (205). A first stirring blade (207) is provided on the first rotating rod (204), and a cooling chamber (7) is opened in the middle of the purification cylinder (1).

3. The low-content sodium formate purification equipment according to claim 2, characterized in that: The cooling chamber (7) is connected to a first delivery pipe (208) and a second delivery pipe (209). One end of the first delivery pipe (208) and the second delivery pipe (209) is connected to a processing cylinder (210). The processing cylinder (210) is fixedly mounted on the outer wall of the purification cylinder (1) by a mounting bracket. A semiconductor cooling chip (211) is embedded in the processing cylinder (210), and the cold end of the semiconductor cooling chip (211) is located inside the processing cylinder (210). A first delivery pump (212) is provided on the first delivery pipe (208). One end of the first processing chamber (4) is connected to a plurality of first output pipes (213), and the first output pipes (213) extend into the interior of the second processing chamber (5).

4. The low-content sodium formate purification equipment according to claim 3, characterized in that: A first control valve (8) is provided on the first output pipe (213), and a separation cylinder (214) is provided on the first rotating rod (204). One end of the separation cylinder (214) is connected to the inner wall of the second processing chamber (5), and the first output pipe (213) is located directly above the separation cylinder (214). The second processing chamber (5) is connected to a third output pipe (215), one end of which extends into the interior of the first processing chamber (4). A second output pump is provided on the third output pipe (215). (216) A conveying groove is provided at one end of the first rotating rod (204). A third motor (217) is embedded in the inner wall of the conveying groove. The output shaft of the third motor (217) is connected to a third rotating rod (218) via a coupling. A spiral conveying blade (219) is provided at one end of the third rotating rod (218), and the spiral conveying blade (219) is in contact with the inner wall of the conveying groove. An input port (9) is provided in the conveying groove. A guide cover (10) is provided at one end of the first rotating rod (204).

5. A low-content sodium formate purification device according to any one of claims 1-4, characterized in that: A second processing component (3) is provided at the top of the purification cylinder (1). The second processing component (3) includes a dissolving cylinder (301). The dissolving cylinder (301) is set at the upper end of the purification cylinder (1) by a fixing frame. A second motor (302) is provided at one end of the dissolving cylinder (301). A second rotating rod (303) is provided on the output shaft of the second motor (302) through a coupling. One end of the second rotating rod (303) extends into the interior of the dissolving cylinder (301) and is connected to the inner wall of the dissolving cylinder (301).

6. The low-content sodium formate purification equipment according to claim 5, characterized in that: The second rotating rod (303) is located inside the dissolving cylinder (301) and is provided with a second stirring blade (304). A heating tube (305) is wound around the outside of the dissolving cylinder (301). Conducting blocks (306) are provided at equal intervals on the heating tube (305), and one end of the conducting block (306) extends into the inside of the dissolving cylinder (301). One end of the dissolving cylinder (301) is connected to a first feeding pipe (307), a second feeding pipe (308), and an exhaust pipe (309).

7. The low-content sodium formate purification equipment according to claim 6, characterized in that: One end of the dissolving cylinder (301) is connected to a second output pipe (310), one end of the second output pipe (310) is connected to the purification cylinder (1), a second control valve (11) is provided on the second output pipe (310), and a controller (12) is provided on the outer wall of the purification cylinder (1).

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