Extraction and separation tank for p-benzyl chloride

Abstract

The utility model discloses an extraction separation tank for p-benzyl chloride, and relates to the technical field of extraction separation. The device comprises a discharge hopper, a lifting separation pipe and a top cover, the lifting separation pipe is slidably clamped on the peripheral surface of the discharge hopper, lifting cylinders are arranged on two sides of the bottom of the lifting separation pipe, a spectrum detection component is clamped on the top of the peripheral surface of the lifting separation pipe, the top cover is arranged on the top of the lifting separation pipe, and an air pump is arranged on the top of the top cover. By arranging the discharging hopper, the lifting separation pipe and the top cover, the problems that the solubility of p-benzyl chloride is greatly influenced by the temperature when the extraction separation tank is used for extracting p-benzyl chloride, the temperature of a large amount of solution is difficult to adjust quickly by the extraction separation tank, the boundary between the two solutions is blurred by the flowing of the liquid when the two solutions are separated, and the extraction separation tank cannot be used for extracting the p-benzyl chloride are solved. And the required extraction times are increased.

Description

Technical Field

[0001] This utility model belongs to the field of extraction and separation technology, and in particular relates to an extraction and separation tank for benzyl chloride. Background Technology

[0002] Extraction, also known as solvent extraction or liquid-liquid extraction, is a method that utilizes the difference in solubility or partition coefficient of a substance in two immiscible solvents to transfer a solute from one solvent to another. It is widely used in chemical, metallurgical, and food industries, and is commonly used in the petroleum refining industry. In the preparation of p-chlorobenzyl, the produced stock solution also needs to be extracted to separate the p-chlorobenzyl from the solution. Using an extraction separation tank can increase the mixing rate between the stock solution and the extractant, ensuring sufficient contact between them and improving the separation rate of the two solutions, thus increasing the production efficiency of p-chlorobenzyl. However, it still has the following drawbacks in practical use:

[0003] 1. Utility model CN208678425U discloses an extraction precipitation separation tank. The top of the separation tank body has an extractant inlet, an inlet with a sight glass, a nitrogen port, and a temperature port. The side of the separation tank body has an extractant inlet and a strip sight glass embedded in the side. The other side of the separation tank body has a hand hole. The inner side of the separation tank body has a screen partition, and the bottom of the separation tank body has a solidifying agent outlet. During extraction, due to the large volume of solution to be extracted, extraction precipitation separation tanks often have difficulty quickly controlling the solution temperature, especially when extracting p-chlorobenzyl, where the solubility of p-chlorobenzyl is greatly affected by temperature, resulting in low extraction efficiency of p-chlorobenzyl in extraction precipitation separation tanks.

[0004] 2. When separating two solutions in an extraction separation tank, the flow of the liquid often blurs the boundary between the two solutions, leading to an increase in the number of extractions required and reducing processing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an extraction and separation tank for benzyl chloride. By using a discharge hopper, a lifting separation pipe, and a top cover, it solves the problems that the solubility of benzyl chloride is greatly affected by temperature during the extraction of benzyl chloride, and that the extraction and separation tank has difficulty in quickly adjusting the temperature of a large amount of solution. Furthermore, the flow of the liquid during the separation of the two solutions can blur the boundary between them, leading to an increase in the number of extractions required.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an extraction and separation tank for benzyl chloride, comprising a discharge hopper, a lifting separation pipe, and a top cover. The lifting separation pipe is slidably engaged with the outer circumference of the discharge hopper. Lifting cylinders are provided on both sides of the bottom of the lifting separation pipe. A spectral detection component is engaged with the top of the outer circumference of the lifting separation pipe. A drain pipe is welded through the top of the outer circumference of the lifting separation pipe. A top cover is provided on the top of the lifting separation pipe. An air pump is provided on the top of the top cover. An air inlet pipe is engaged through the bottom of the air pump. An air extraction pipe is engaged through one end of the outer circumference of the air pump.

[0008] During solution separation, the lifting cylinder slowly moves the lifting separation tube downwards, allowing the solution at the top to be discharged through the drain pipe under gravity, minimizing the impact on the solution at the bottom and preventing blurring of the boundary between the two solutions. This ensures maximum separation of the two solutions during a single extraction, improving extraction efficiency. In the extraction and separation of p-chlorobenzyl, an air pump evacuates the extraction separation tank. As the gas passes through the evacuation pipe, it is rapidly cooled by a semiconductor cooling chip. The low-temperature gas is then drawn to the bottom of the solution through the inlet pipe, causing the solution to tumble and ensuring full contact between the solution and the low-temperature gas. This rapid cooling of the solution, combined with thorough contact between the two solutions, allows p-chlorobenzyl to dissolve quickly in the extractant, improving the processing efficiency of p-chlorobenzyl.

[0009] Furthermore, a filter screen is fixedly fastened to the top of the discharge hopper, a support base is fixedly fastened to the bottom edge of the discharge hopper, and a discharge pipe is fastened through the center of the bottom of the discharge hopper;

[0010] The solution can be filtered through a filter screen to prevent particulate impurities from affecting the solution extracted from the bottom. After each extraction, the solution can be poured out through the discharge pipe, making it easy for the extraction separation tank to extract again.

[0011] Furthermore, a transparent plate is inserted and snapped through one end of the outer peripheral surface of the lifting separation tube, the spectral detection component is located on one side of the transparent plate, an inlet pipe is welded through the top of the outer peripheral surface of the lifting separation tube, and the outlet pipe is located on the top of the spectral detection component;

[0012] The spectral detection component can perform spectral detection on the solution inside the lifting separation tube through a transparent plate. When the spectral detection component detects a change in the spectrum, it can control the lifting cylinder to further reduce the descent speed of the lifting separation tube, thereby reducing the discharge of another solution and improving the extraction efficiency.

[0013] Furthermore, a telescopic tube is snapped into the bottom of the lifting separation tube, and the telescopic tube is slidably snapped into the top of the lifting cylinder. The telescopic tube and the lifting cylinder are located outside the discharge hopper.

[0014] The lifting cylinder can drive the lifting separation tube to move up and down. When separating two solutions, by slowly moving the lifting separation tube downward, the solution at the top can be discharged through the drain pipe under the action of gravity. The flow of the solution at the top will not have a significant impact on the solution at the bottom, avoiding blurring of the boundary between the two solutions. This allows for the separation of the two solutions as much as possible in a single extraction, improving extraction efficiency.

[0015] Furthermore, a dustproof corrugated pipe is snapped and fixed to the bottom edge of the top cover, the bottom of the dustproof corrugated pipe is snapped to the top of the lifting and separating pipe, a support frame is snapped to the top of the top cover, the bottom of the support frame is snapped to the top of the discharge hopper, and the support frame is located inside the lifting and separating pipe;

[0016] The dustproof corrugated pipe prevents dust from entering the inside of the extraction and separation tank, thus avoiding solution contamination and ensuring extraction efficiency.

[0017] Furthermore, a heating element is snapped onto the outer peripheral surface of the air intake pipe, and a semiconductor cooling element is snapped onto the outer peripheral surface of the air extraction pipe. Both the air intake pipe and the air extraction pipe are inserted through and connected to the top of the top cover. Both the heating element and the semiconductor cooling element are located at the top of the top cover. The bottom of the air intake pipe is inserted through and connected to the top of the filter screen.

[0018] After the original solution and extractant are poured into the extraction separation tank, the air pump draws air from the tank through the air inlet pipe. The gas is cooled by the semiconductor cooling chip as it enters the inlet pipe, and heated by the heating chip. The gas is then pumped into the solution using low-temperature or high-temperature air, which allows for full contact and heat exchange between the solution and the air. This also causes the solution to tumble, enabling the active ingredients in the original solution to dissolve quickly in the extractant, thus improving the extraction efficiency.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model solves the problem of low extraction efficiency of extraction precipitation separation tanks due to the difficulty in quickly controlling the temperature of the solution when the required extraction volume is large, especially when extracting p-chlorobenzyl, where the solubility of p-chlorobenzyl is greatly affected by temperature. When extracting p-chlorobenzyl, the gas pump is started to draw air from the extraction separation tank, allowing the gas to enter the gas extraction pipe. The gas is then rapidly cooled by a semiconductor cooling chip. The low-temperature gas is pumped into the solution through the gas inlet pipe, allowing the solution and air to fully contact and exchange heat. At the same time, it can drive the tumbling of the solution, so that the effective components in the original solution can quickly dissolve in the extractant, thereby improving the extraction efficiency.

[0021] 2. This utility model solves the problem that when separating two solutions in an extraction separation tank, the flow of the liquid often blurs the boundary between the two solutions, leading to an increase in the number of extractions required and reduced processing efficiency. After the two solutions are allowed to settle and separate, the lifting cylinder is controlled to slowly move the lifting separation tube downwards, allowing the solution at the top of the extraction separation tank to be discharged through the drain pipe under gravity. The flow of the solution at the top will not have a significant impact on the solution at the bottom, avoiding blurring the boundary between the two solutions and enabling the two solutions to be separated as much as possible in a single extraction, thereby improving extraction efficiency. Attached Figure Description

[0022] Figure 1 This is a structural rendering of the present invention;

[0023] Figure 2 It is a structural diagram of the utility model;

[0024] Figure 3 This is a structural diagram of the discharge hopper of this utility model;

[0025] Figure 4 This is a structural diagram of the lifting separation pipe and lifting cylinder of this utility model;

[0026] Figure 5 This is a structural diagram of the top cover and air pump of this utility model.

[0027] Figure label:

[0028] 1. Discharge hopper; 101. Filter screen; 102. Discharge pipe; 103. Support base; 2. Lifting and separating pipe; 201. Drain pipe; 202. Spectrometer detection component; 203. Lifting cylinder; 204. Telescopic pipe; 205. Transparent plate; 206. Liquid inlet pipe; 3. Top cover; 301. Air pump; 302. Air inlet pipe; 303. Air extraction pipe; 304. Heating element; 305. Semiconductor cooling element; 306. Dustproof corrugated pipe; 307. Support frame. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Please see Figure 1-5As shown, this utility model is an extraction and separation tank for benzyl chloride, including a discharge hopper 1, a lifting separation pipe 2, and a top cover 3. The lifting separation pipe 2 is slidably connected to the outer circumference of the discharge hopper 1. Lifting cylinders 203 are provided on both sides of the bottom of the lifting separation pipe 2. A spectral detection component 202 is connected to the top of the outer circumference of the lifting separation pipe 2. A drain pipe 201 is welded through the top of the outer circumference of the lifting separation pipe 2. The top cover 3 is provided on the top of the lifting separation pipe 2. An air pump 301 is provided on the top of the top cover 3. An air inlet pipe 302 is connected through the bottom of the air pump 301. An air extraction pipe 303 is connected through the outer circumference of the air pump 301 at one end.

[0031] The original solution and extractant are poured into the extraction separation tank through the inlet pipe 206. The air pump 301 is started to evacuate the gas. The gas in the extraction separation tank enters the evacuation pipe 303 and is cooled by the semiconductor cooling chip 305. The low-temperature air is pumped into the solution through the inlet pipe 302 to exchange heat with the solution and cause the solution to tumble, ensuring full contact between the original solution and the extractant. This further facilitates the rapid dissolution of benzyl chloride in the extractant. After thorough mixing, the solution is allowed to stand. Once the two solutions have separated into layers, the spectral detection component 202 is activated. The lifting cylinder 203 is controlled to drive the lifting separation tube 2 to move slowly downward, so that the solution at the top of the extraction separation tank is discharged through the drain pipe 201 under the action of gravity, which will not have a significant impact on the solution at the bottom and avoid blurring the boundary between the two solutions. When the spectral detection component 202 detects a change in the spectrum, the lifting cylinder 203 is controlled to further reduce the moving speed of the lifting separation tube 2, reducing the discharge of the other solution. After one solution is completely discharged, the discharge pipe 102 is opened to discharge the solution containing benzyl chloride.

[0032] Among them, such as Figure 1-4 As shown, a filter screen 101 is fixedly attached to the top of the discharge hopper 1, a support base 103 is fixedly attached to the bottom edge of the discharge hopper 1, and a discharge pipe 102 is fixedly attached through the center of the bottom of the discharge hopper 1.

[0033] A transparent plate 205 is inserted and snapped through one end of the outer peripheral surface of the lifting separation pipe 2. The spectral detection component 202 is located on one side of the transparent plate 205. An inlet pipe 206 is welded through the top of the outer peripheral surface of the lifting separation pipe 2. A drain pipe 201 is located on the top of the spectral detection component 202. A telescopic pipe 204 is snapped through the bottom of the lifting separation pipe 2. The telescopic pipe 204 is slidably snapped into the top of the lifting cylinder 203. The telescopic pipe 204 and the lifting cylinder 203 are located outside the discharge hopper 1.

[0034] The original solution and extractant are poured into the extraction separation tank through the inlet pipe 206. After the original solution and extractant have come into full contact, the two solutions are allowed to stand and separate into layers. The spectral detection component 202 is activated for detection. At the same time, the lifting cylinder 203 is controlled to drive the telescopic tube 204 to contract, causing the lifting separation tube 2 to move downward. This allows the solution at the top of the extraction separation tank to be discharged through the drain pipe 201 under gravity, without significantly affecting the solution at the bottom and avoiding blurring of the boundary between the two solutions. When the spectral detection component 202 detects a change in the spectrum, the lifting cylinder 203 is controlled to further reduce the moving speed of the lifting separation tube 2, reducing the discharge of the other solution. After one solution is completely discharged, the discharge pipe 102 is opened to discharge the solution containing benzyl chloride.

[0035] Among them, such as Figure 1 , 5 As shown, a dustproof corrugated pipe 306 is fixedly snapped to the bottom edge of the top cover 3. The bottom of the dustproof corrugated pipe 306 is snapped to the top of the lifting separation pipe 2. A support frame 307 is snapped to the top of the top cover 3. The bottom of the support frame 307 is snapped to the top of the discharge hopper 1. The support frame 307 is located inside the lifting separation pipe 2. A heating element 304 is snapped to the outer circumference of the air inlet pipe 302. A semiconductor cooling element 305 is snapped to the outer circumference of the air extraction pipe 303. Both the air inlet pipe 302 and the air extraction pipe 303 are inserted through the top of the top cover 3. The heating element 304 and the semiconductor cooling element 305 are both located at the top of the top cover 3. The bottom of the air inlet pipe 302 is inserted through the top of the filter screen 101.

[0036] During solution extraction, the air pump 301 is controlled to draw air from the extraction separation tank, so that the gas enters the air extraction pipe 303 and is cooled by the semiconductor cooling chip 305. Then, the low-temperature gas is pumped into the solution through the air inlet pipe 302. The low-temperature air is pumped into the solution through the air inlet pipe 302 to exchange heat with the solution and drive the solution to tumble, so that the original solution and the extractant can come into full contact, and further so that benzyl chloride can be quickly dissolved in the extractant.

[0037] The specific working principle of this utility model is as follows: During the extraction of benzyl chloride, the original solution and extractant are poured into the extraction separation tank through the liquid inlet pipe 206. The air pump 301 is controlled to evacuate the extraction separation tank, allowing the gas to enter the evacuation pipe 303 and be cooled by the semiconductor cooling chip 305. Then, the low-temperature gas is pumped into the solution through the air inlet pipe 302. The low-temperature air is pumped into the solution through the air inlet pipe 302 to exchange heat with the solution and drive the solution to tumble, so that the original solution and extractant can fully contact each other, further allowing benzyl chloride to dissolve rapidly in the extractant and be fully extracted. The two solutions are then allowed to stand and separate into layers. The spectral detection component 202 is activated for detection. At the same time, the lifting cylinder 203 is controlled to retract the telescopic tube 204, causing the lifting separation tube 2 to move downward. This allows the solution at the top of the extraction separation tank to be discharged through the drain pipe 201 under gravity. When the spectral detection component 202 detects a change in the spectrum, the lifting cylinder 203 is controlled to further reduce the moving speed of the lifting separation tube 2, reducing the discharge volume of the other solution. After one solution is completely discharged, the discharge pipe 102 is opened to discharge the solution containing benzyl chloride.

[0038] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. An extraction and separation tank for benzyl chloride, comprising a discharge hopper (1), a lifting separation pipe (2), and a top cover (3), characterized in that: The discharge hopper (1) is slidably connected to a lifting separation pipe (2) on its outer periphery. Lifting cylinders (203) are provided on both sides of the bottom of the lifting separation pipe (2). A spectral detection component (202) is connected to the top of the outer periphery of the lifting separation pipe (2). A drain pipe (201) is welded through the top of the outer periphery of the lifting separation pipe (2). A top cover (3) is provided on the top of the lifting separation pipe (2). An air pump (301) is provided on the top of the top cover (3). An air pump (301) is connected through the bottom of the air pump (301). An air extraction pipe (303) is connected through the outer periphery of the air pump (301) at one end.

2. The extraction and separation tank for benzyl chloride according to claim 1, characterized in that: A filter screen (101) is fixedly attached to the top of the discharge hopper (1), a support base (103) is fixedly attached to the bottom edge of the discharge hopper (1), and a discharge pipe (102) is fixedly attached through the center of the bottom of the discharge hopper (1).

3. The extraction and separation tank for benzyl chloride according to claim 1, characterized in that: A transparent plate (205) is inserted and snapped through one end of the outer peripheral surface of the lifting separation tube (2). The spectral detection component (202) is located on one side of the transparent plate (205). An inlet pipe (206) is welded through the top of the outer peripheral surface of the lifting separation tube (2). The drain pipe (201) is located on the top of the spectral detection component (202).

4. The extraction and separation tank for benzyl chloride according to claim 3, characterized in that: The bottom of the lifting separation pipe (2) is fitted with a telescopic pipe (204), which is slidably fitted to the top of the lifting cylinder (203). The telescopic pipe (204) and the lifting cylinder (203) are located outside the discharge hopper (1).

5. The extraction and separation tank for benzyl chloride according to claim 1, characterized in that: The bottom edge of the top cover (3) is fixed with a dustproof corrugated pipe (306), the bottom of the dustproof corrugated pipe (306) is fixed to the top of the lifting separation pipe (2), the top of the top cover (3) is fixed with a support frame (307), the bottom of the support frame (307) is fixed to the top of the discharge hopper (1), and the support frame (307) is located inside the lifting separation pipe (2).

6. The extraction and separation tank for benzyl chloride according to claim 2, characterized in that: A heating element (304) is snapped onto the outer periphery of the air inlet pipe (302), and a semiconductor cooling chip (305) is snapped onto the outer periphery of the air extraction pipe (303). Both the air inlet pipe (302) and the air extraction pipe (303) are inserted through the top of the top cover (3). Both the heating element (304) and the semiconductor cooling chip (305) are located at the top of the top cover (3). The bottom of the air inlet pipe (302) is inserted through the top of the filter screen (101).

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