Salt forming reaction organic solvent recovery device

Abstract

The utility model discloses a salt-forming reaction organic solvent recovery device, and belongs to the technical field of fine chemical engineering. The utility model discloses a salt-forming reaction organic solvent recovery device, which comprises a recovery tank, the absorption plate is fixedly connected into the recovery tank; the material conveying pipe is fixedly connected to the recovery tank; the condensation pipe is fixedly connected to the recovery tank; the air suction pump is fixedly connected to the condensation pipe; the heating plate is fixedly connected into the recovery tank; the pressure storage cavity is formed in the recovery tank; the gas ejector pipe is fixedly connected into the recovery tank; according to the utility model, the gas in the cavity is heated by utilizing the heating plate, and the heated gas is collected and sprayed into the material in the tank body, so that the material in the recovery tank is blown, and the material in the recovery tank is turned over and disturbed under the blowing of hot gas, so that the material in the tank is turned over irregularly; furthermore, materials in the tank can be fully heated by the heating plate, so that the recovery efficiency of the organic solvent is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment in fine chemical industry, and particularly relates to an organic solvent recovery device for salt-forming reaction. Background Technique

[0002] In the process of fine chemical production, organic solvents are often used as reaction liquids for various organic synthesis reactions, for operations such as dissolving raw materials, extraction and liquid separation, and pulping for purity. Therefore, a large amount of waste organic solvents will be generated during the production process. On the one hand, it will cause a large amount of resource waste, and on the other hand, the direct discharge of waste organic solvents will pollute the environment. In the prior art, a recovery tank is generally used to recover and utilize organic solvents.

[0003] In the preparation process of 3,4-dimethylpyrazole phosphate in our company's project, 3,4-dimethylpyrazole is dissolved in an ethanol solvent, 85% phosphoric acid with a concentration is added to adjust the pH = 1, stirred and reacted, cooled, crystallized, and filtered. The filter cake is vacuum dried to obtain 3,4-dimethylpyrazole phosphate, and the ethanol solvent containing a small amount of product in the filtrate is recovered by a recovery tank and recycled again.

[0004] However, there are still certain deficiencies in the use of the recovery tank in the prior art. During the recovery process, the heating plate in the recovery tank in the prior art can generally only heat the materials around the tank wall, and the heating effect on the overall materials in the tank may not be good, and the recovery efficiency needs to be further improved. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems put forward in the above background technique, and to propose an organic solvent recovery device for salt-forming reaction.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An organic solvent recovery device for salt-forming reaction, comprising:

[0008] A recovery tank;

[0009] An absorption plate, fixedly connected in the recovery tank;

[0010] A feed pipe, fixedly connected to the recovery tank;

[0011] A condenser pipe, fixedly connected to the recovery tank;

[0012] An air suction pump, fixedly connected to the condenser pipe;

[0013] A heating plate, fixedly connected in the recovery tank;

[0014] A pressure accumulation chamber, opened in the recovery tank;

[0015] The jet pipe is fixedly connected to the recovery tank, and the jet pipe is in communication with the pressure accumulation chamber.

[0016] Preferably, a one-way pressure relief valve is fixedly connected to the jet pipe.

[0017] Further, a cavity is formed in the recovery tank, the heating plate is placed in the cavity, an air delivery pipe is fixedly connected to the recovery tank, and the cavity is in communication with the pressure accumulation chamber through the air delivery pipe.

[0018] Further, an air supplement ring is fixedly connected to the recovery tank, an air supplement pipe is fixedly connected to the air supplement ring, the air supplement pipe is in communication with the cavity, and an air inlet pipe is fixedly connected to the air supplement ring.

[0019] Preferably, an air suction hood is fixedly connected to the condensing pipe, and the air suction hood is located directly above the absorption plate.

[0020] Further, the bottom end of the jet pipe is an arc-shaped pipe.

[0021] Compared with the prior art, the present utility model provides a device for recovering organic solvents in a salt-forming reaction, and has the following beneficial effects:

[0022] Parts not involved in this device are the same as or can be implemented by using the prior art. The present utility model heats the gas in the cavity by using the heating plate, collects the heated gas and sprays it into the material in the tank, and then blows the material in the recovery tank. At this time, under the blowing of the hot gas, the material in the recovery tank will roll and stir, and then the material in the tank will turn irregularly, so that the material in the tank can be fully heated by the heating plate, solving the problem in the prior art that the heating plate can only heat the material around the inner wall of the tank and the heating is insufficient, and thus improving the recovery efficiency of the organic solvent. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a device for recovering organic solvents in a salt-forming reaction proposed by the present utility model;

[0024] Figure 2 It is a cross-sectional view of a device for recovering organic solvents in a salt-forming reaction proposed by the present utility model;

[0025] Figure 3 It is a device for recovering organic solvents in a salt-forming reaction proposed by the present utility model Figure 2 The enlarged view of part A in it.

[0026] In the figure: 1. Recovery tank; 101. Pressure accumulation chamber; 102. Absorption plate; 103. Heating plate; 104. Cavity; 105. Feed pipe; 2. Air supplement ring; 201. Air supplement pipe; 3. Condensing pipe; 301. Air suction hood; 4. Air suction pump; 5. Jet pipe; 501. One-way pressure relief valve; 6. Air delivery pipe; 7. Air inlet pipe. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Embodiment 1:

[0029] Refer to Figures 1-3 , a recovery device for organic solvents in a salt-forming reaction, comprising:

[0030] Recovery tank 1;

[0031] Absorption plate 102, fixedly connected in recovery tank 1;

[0032] Feed pipe 105, fixedly connected to recovery tank 1;

[0033] Condensing pipe 3, fixedly connected to recovery tank 1;

[0034] Air suction pump 4, fixedly connected to condensing pipe 3;

[0035] Heating plate 103, fixedly connected in recovery tank 1;

[0036] Pressure accumulation chamber 101, opened in recovery tank 1;

[0037] Jet pipe 5, fixedly connected in recovery tank 1, and jet pipe 5 is communicated with pressure accumulation chamber 101.

[0038] One-way pressure relief valve 501 is fixedly connected to jet pipe 5.

[0039] A cavity 104 is opened in recovery tank 1, heating plate 103 is placed in cavity 104, an air delivery pipe 6 is fixedly connected in recovery tank 1, and cavity 104 is communicated with pressure accumulation chamber 101 through air delivery pipe 6.

[0040] It should be noted that a one-way pressure valve is provided in air delivery pipe 6.

[0041] Refer to Figures 1-3 , before use, add the material to be recovered into recovery tank 1 through feed pipe 105. After adding to an appropriate position, stop the delivery and close the valve on feed pipe 105.

[0042] During use, the material in the recovery tank 1 is heated by the heating plate 103, so that the recoverable organic matter in the material volatilizes. After volatilization, the particulate impurities are absorbed by the absorption plate 102, and finally are extracted by the air suction pump 4. During the extraction process, it is condensed and recovered by the condenser tube 3.

[0043] While the heating plate 103 is heating, the heating plate 103 also heats the gas in the cavity 104. The gas expands when heated, and at this time, the pressure in the cavity 104 will increase. When the set pressure threshold is reached, the gas in the cavity 104 will be transported to the pressure accumulation cavity 101 through the air delivery pipe 6. As the gas transported to the pressure accumulation cavity 101 continuously increases, the air pressure in the pressure accumulation cavity 101 will gradually increase. When the pressure in the pressure accumulation cavity 101 reaches the set threshold, the gas in the pressure accumulation cavity 101 will be ejected through the air injection pipe 5. The ejected hot gas will blow the material in the recovery tank 1. At this time, under the blowing of the hot gas, the material in the recovery tank 1 will roll and stir, so that the material in the tank will be irregularly turned over, and thus the material in the tank can be fully heated by the heating plate 103, solving the problem in the prior art that the heating plate 103 can only heat the material around the inner wall of the tank and the heating is insufficient.

[0044] At the same time, the hot gas blown out through the air injection pipe 5 can also assist in heating the material in the tank, further improving the heating effect on the material in the tank.

[0045] A gas supplement ring 2 is fixedly connected to the recovery tank 1. A gas supplement pipe 201 is fixedly connected to the gas supplement ring 2. The gas supplement pipe 201 is communicated with the cavity 104. An air inlet pipe 7 is fixedly connected to the gas supplement ring 2.

[0046] It should be noted that the air inlet pipe 7 is communicated with an external gas storage tank.

[0047] Refer to Figure 2 、 Figure 3 , after heating for a period of time, gas is transported to the gas supplement ring 2 through the air inlet pipe 7. The transported gas will be input into the cavity 104 through the gas supplement pipe 201, thereby supplementing the heatable gas for the cavity 104.

[0048] It should be noted that a one-way valve is provided in the gas supplement pipe 201.

[0049] An air suction hood 301 is fixedly connected to the condenser tube 3. The air suction hood 301 is located directly above the absorption plate 102.

[0050] Refer to Figure 2 , through the air suction hood 301 provided on the condenser tube 3, it is convenient for the air suction pump 4 to extract the recovered gas.

[0051] The bottom end of the air injection pipe 5 is an arc-shaped pipe, and the air outlet end of the air injection pipe 5 faces the central axis of the recovery tank 1.

[0052] The utility model heats the gas in the cavity 104 by using the heating plate 103, and collects the heated gas and sprays it into the material in the tank body 1, and then blows and hits the material in the recovery tank 1. At this time, under the blowing of the hot gas, the material in the recovery tank 1 will roll and stir, and then the material in the tank will be irregularly turned over, so that the material in the tank can be fully heated by the heating plate 103, solving the problem in the prior art that the heating plate 103 can only heat the material around the inner wall of the tank and the heating is insufficient, and thus improving the recovery efficiency of the organic solvent.

[0053] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution and inventive concept of the utility model, makes equivalent replacement or change, and should be covered by the protection scope of the utility model.

Claims

1. A recovery device for organic solvents in a salt-forming reaction, characterized in that, Comprising: Recovery tank (1); Absorption plate (102), fixedly connected in the recovery tank (1); Feeding pipe (105), fixedly connected to the recovery tank (1); Condensing pipe (3), fixedly connected to the recovery tank (1); Air suction pump (4), fixedly connected to the condensing pipe (3); Heating plate (103), fixedly connected in the recovery tank (1); Pressure accumulation chamber (101), opened in the recovery tank (1); Jet pipe (5), fixedly connected in the recovery tank (1), and the jet pipe (5) communicates with the pressure accumulation chamber (101).

2. The organic solvent recovery device for salt formation reaction according to claim 1, wherein A one-way pressure relief valve (501) is fixedly connected to the jet pipe (5).

3. The organic solvent recovery device for a salt-forming reaction according to claim 2, wherein, A cavity (104) is opened in the recovery tank (1), the heating plate (103) is placed in the cavity (104), an air delivery pipe (6) is fixedly connected in the recovery tank (1), and the cavity (104) communicates with the pressure accumulation chamber (101) through the air delivery pipe (6).

4. A device for recovering organic solvents in a salt-forming reaction according to claim 3, characterized in that, An air supplement ring (2) is fixedly connected to the recovery tank (1), an air supplement pipe (201) is fixedly connected to the air supplement ring (2), the air supplement pipe (201) communicates with the cavity (104), and an air inlet pipe (7) is fixedly connected to the air supplement ring (2).

5. The organic solvent recovery device for a salt-forming reaction according to claim 1, characterized in that, An air suction hood (301) is fixedly connected to the condensing pipe (3), and the air suction hood (301) is located directly above the absorption plate (102).

6. The organic solvent recovery device for salt formation reaction according to claim 5, wherein The bottom end of the jet pipe (5) is an arc-shaped pipe.

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