Circulating type 3, 3-dimethyl-4-pentenoic acid methyl ester crude product washing device

Abstract

The utility model relates to the technical field of 3, 3-dimethyl-4-pentenoic acid methyl ester, in particular to a circulating type 3, 3-dimethyl-4-pentenoic acid methyl ester crude product washing device which comprises a support, an upper end stirring tank, a storage structure, a lower end stirring tank and a containing structure. One side of the upper end of a first stirring tank in the upper-end stirring tanks is connected with a first detection device through a bolt, one side of the first stirring tank is connected with a temperature control device through a bolt, and the lower end of the first stirring tank is connected with a heating structure through a bolt; a first electric telescopic rod and a second electric telescopic rod are controlled through a first control structure and a second control structure, so that a first conical cover and a second conical cover can move up and down, and the lower ends of a first stirring tank and a second stirring tank can be sealed and dredged when the conical covers move up and down; and through a first inclined filter screen and a second inclined filter screen which are connected through bolts in the first pipeline and the fourth pipeline, filtered objects at the upper ends of the inclined filter screens can enter the storage groove.

Description

Technical Field

[0001] The utility model relates to the technical field of methyl pentanoate, in particular to a circulating crude methyl pentanoate washing device. Background Art

[0002] The chemical name of methyl pentanoate is 3,3-dimethyl-4-pentenoate methyl ester. It is a colorless, transparent liquid, flammable, and has an ester aroma. It is an important intermediate for the synthesis of DV-chrysanthemic acid methyl ester and 2-cis-trifluorochlorpyrifos ester, and can be used to synthesize many pyrethroid insecticides for hygiene and clothing.

[0003] However, the existing methyl pentanoate is prone to produce some precipitates and flocs during the washing process. These precipitates and flocs require frequent replacement and cleaning of the filter screen during filtration, which causes certain economic losses. In addition, the filter screen of the existing methyl pentanoate is easily blocked by the precipitates and flocs during the cyclic washing, and the blockage and flocs cannot be quickly cleaned, which is troublesome.

[0004] Therefore, in order to solve the above problems, a circulating crude product washing device of methyl benzoate is proposed. Utility Model Content

[0005] The utility model aims to provide a circulating crude methyl pentanoate washing device to solve the problem that in the prior art methyl pentanoate mentioned in the background technology, some precipitates and flocs are easily generated during the washing process, and these precipitates and flocs need to be frequently replaced and cleaned when filtering, which causes certain economic losses. In addition, the filter screen of the existing methyl pentanoate is easily blocked by the precipitates and flocs during the circulating washing, and the blockage and flocs cannot be quickly cleaned, which is troublesome.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating type crude methyl benzoate washing device, comprising: a bracket, an upper stirring tank, a storage structure, a lower stirring tank and a storage structure;

[0007] The second connecting plate in the bracket is internally connected to the upper stirring tank with bolts, the upper end of the first stirring tank in the upper stirring tank is connected to the first detection device with bolts on one side, the first stirring tank is connected to the temperature control device with bolts on one side, the lower end of the first stirring tank is connected to the heating structure with bolts, the lower end of the first stirring tank is connected to the first electric telescopic rod with bolts, the upper end of the first electric telescopic rod is connected to the first conical cover with bolts, the lower end of the first conical cover is embedded with a first sealing ring, the lower end of the first stirring tank is connected to the first control structure with bolts, the lower end of the first control structure is connected to the first pipeline with bolts, the first pipeline is internally connected to the first oblique filter screen with bolts, the first pipeline is connected to the storage structure with bolts on one side, the storage groove in the storage structure is welded with a support block, the first filter screen is placed on the upper end of the support block, the upper ends of the four sides of the first filter screen are welded with connecting pieces, the upper end of the connecting piece is fastened to the support block, the lower end of the third pipeline in the storage structure is connected to the lower stirring tank with bolts, one side of the fourth pipeline in the lower stirring tank is connected to the receiving structure with bolts, and the upper end of the connection port in the receiving structure is connected to the material pump with bolts.

[0008] Preferably, the upper end of the first pillar in the bracket is connected to the first connecting plate with bolts, the four sides of the upper end of the first connecting plate are connected to the second pillar with bolts, and the upper end of the second pillar is connected to the second connecting plate with bolts.

[0009] Preferably, the upper end of the first stirring tank in the upper stirring tank is bolted to the first motor, the lower end of the first motor is bolted to the first stirring rod, the upper end of the first stirring tank is bolted to the first detection device, one side of the upper end of the first stirring tank is hollowed to form a first injection port, one side of the first stirring tank is bolted to the temperature control device, and the lower end of the first stirring tank is bolted to the heating structure.

[0010] Preferably, the lower end of the first stirring tank is connected to the first electric telescopic rod with bolts, the upper end of the first electric telescopic rod is connected to the four sides of the lower end of the first conical cover with bolts, the lower end of the first conical cover is embedded with a first sealing ring, the lower end of the first electric telescopic rod is connected to the first control structure with bolts, the lower end of the first control structure is connected to the first pipe with bolts, the hollow part inside the first pipe is connected to the first inclined filter screen with bolts, and one side of the first pipe is connected to the storage structure with bolts.

[0011] Preferably, the storage groove in the storage structure is hollow inside, and a threaded structure protrudes from the upper end of the storage groove, and the outer side of the threaded structure is rotatably connected to a threaded cover. A support block protrudes from the inside of the storage groove, and a first filter screen is placed on the upper end of the support block. The lower ends of the connecting pieces are welded on four sides of the upper end of the first filter screen, and the upper end of the connecting piece is fastened to the lower end of the connecting rod, and the upper end of the connecting rod is connected to the lower end of the connecting cover with bolts, the lower end of the storage groove is connected to the second filter screen with bolts, one side of the storage groove is connected to the second pipe with bolts, and the lower end of the storage groove is connected to the third pipe with bolts.

[0012] Preferably, one side of the second stirring tank in the lower end stirring tank is bolted to the second motor, the lower end of the second motor is bolted to the second stirring rod, the upper end of the second stirring tank is hollowed to form a second injection port, the upper end of the second stirring tank is bolted to the second detection device, the lower end of the second stirring tank is bolted to the second electric telescopic rod, the upper end of the second electric telescopic rod is bolted to the four sides of the lower end of the second conical cover, the lower end of the second conical cover is embedded with a second sealing ring, the lower end of the second stirring tank is bolted to the upper end of the second control structure, the lower end of the second control structure is bolted to the fourth pipe, the hollow inside of the fourth pipe is bolted to the second oblique filter, and one side of the lower end of the fourth pipe is bolted to the receiving structure.

[0013] Preferably, the upper end of the receiving tank in the receiving structure is hollow to form a connecting port, the lower end of the connecting port is connected to the fifth pipe with bolts, the upper end of the connecting port is connected to the extraction pump with bolts, one side of the receiving tank is connected to the discharge port with bolts, the upper end of the extraction pump is connected to the sixth pipe with bolts, and the upper end of the sixth pipe is connected to one side of the first stirring tank with bolts.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can control the first electric telescopic rod and the second electric telescopic rod through the first control structure and the second control structure to enable the first conical cover and the second conical cover to move up and down, so that the conical cover can seal and dredge the lower ends of the first stirring tank and the second stirring tank when moving up and down, and the first oblique filter screen and the second oblique filter screen connected by bolts inside the first pipe and the fourth pipe can enable the filtered material on the upper end of the oblique filter screen to enter the storage tank, and the connecting pieces welded on the four sides of the first filter screen inside the storage tank can enable the connecting piece to be fastened and connected to the lower end of the connecting rod, and the connecting cover connected by bolts at the upper end of the connecting rod can enable the connecting cover to drive the first filter screen at the lower end to move upward so that the first filter screen can be pulled to replace or clean the filtered material at the upper end.

[0015] 1. The utility model is provided with a first stirring tank, a first motor, a first stirring stick, a first detection device, a first injection port, a temperature control device, a heating structure, a first electric telescopic rod, a first sealing ring, a first conical cover, a first control structure, a first pipeline, a first oblique filter, a storage groove, a threaded structure, a threaded cover, a support block, a first filter, a connecting piece, a connecting rod, a connecting cover, a second filter, a second pipeline and a third pipeline. The first motor connected with bolts at the upper end of the first stirring tank is used to rotate the first stirring stick, the material inside the first stirring tank can be detected by the first detection device, the first injection port can enable the first injection port to inject material into the first stirring tank, the temperature of the material inside the first stirring tank can be controlled by the temperature control device, and the material inside the first stirring tank can be heated by the heating structure. The first electric telescopic rod can be used to move the first conical cover up and down, so that the first conical cover can cover the hole at the lower end of the first stirring tank. The first sealing ring can prevent the conical cover from leaking when covering the hole. The first control structure can extend and retract the electric telescopic rod up and down. The first oblique filter screen connected by bolts inside the first pipeline can make the first oblique filter screen flow the filtered impurities into the storage tank and collect them with the first filter screen in the storage tank. The connecting rods fastened on the four sides of the first filter screen can make the connecting rods driven out of the storage tank by the connecting cover for replacement or cleaning. The storage tank can be opened by rotating the threaded structure at the upper end of the storage tank with the threaded cover. The second filter screen is used for secondary filtration. The third pipeline is used to filter the materials in the storage tank once and enter the second stirring tank.

[0016] 2. The utility model is provided with a second stirring tank, a second motor, a second stirring stick, a second injection port, a second detection device, a second electric telescopic rod, a second conical cover, a second sealing ring, a second control structure, a fourth pipeline, a second oblique filter, a receiving tank, a connecting port, a fifth pipeline, a discharge port, a material pump and a sixth pipeline. The second motor connected with bolts on one side of the second stirring tank can make the second motor rotate the second stirring stick, and the second injection port at the hollow upper end of the second stirring tank can make the second injection port be able to pour materials into the second stirring tank, and the second detection device can make the material inside the second stirring tank be detected, and the second motor telescopic rod drives the second stirring tank to rotate. The second conical cover can enable the second conical cover to move up and down so that the second conical cover can cover the hole at the lower end of the second stirring tank. The second conical cover can seal the hole through the second sealing ring. The second electric telescopic rod can be controlled to move up and down through the second control structure. The second oblique filter screen connected with bolts inside the fourth pipe can filter the material through the fourth pipe, so that the filter residue can flow into the storage tank. The receiving tank is connected with bolts at the lower end of the fourth pipe, so that the receiving tank can receive the filtered material. The material inside the receiving tank can be pumped into the first stirring tank by the pumping pump for circulating washing and filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0019] Figure 3 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the structural cross-section of the storage structure of the utility model.

[0021] In the figure: 1, bracket; 101, first pillar; 102, first connecting plate; 103, second pillar; 104, second connecting plate; 2, upper stirring tank; 201, first stirring tank; 202, first motor; 203, first stirring stick; 204, first detection device; 205, first injection port; 206, temperature control device; 207, heating structure; 208, first electric telescopic rod; 209, first sealing ring; 210, first conical cover; 211, first control structure; 212, first pipeline; 213, first oblique filter; 3, storage structure; 301, storage groove; 302, threaded structure; 303, threaded cover; 304, support block; 305, first Filter; 306, connecting piece; 307, connecting rod; 308, connecting cover; 309, second filter; 310, second pipeline; 311, third pipeline; 4, lower end stirring tank; 401, second stirring tank; 402, second motor; 403, second stirring rod; 404, second injection port; 405, second detection device; 406, second electric telescopic rod; 407, second conical cover; 408, second sealing ring; 409, second control structure; 410, fourth pipeline; 411, second oblique filter; 5, receiving structure; 501, receiving tank; 502, connecting port; 503, fifth pipeline; 504, discharge port; 505, material pump; 506, sixth pipeline. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , an embodiment provided by the utility model:

[0024] A circulating type crude methyl benzoate washing device comprises: a support 1, an upper stirring tank 2, a storage structure 3, a lower stirring tank 4 and a storage structure 5;

[0025] The second connecting plate 104 in the bracket 1 is internally connected to the upper stirring tank 2 with bolts, the upper end of the first stirring tank 201 in the upper stirring tank 2 is connected to the first detection device 204 with bolts, the first stirring tank 201 is connected to the temperature control device 206 with bolts, the lower end of the first stirring tank 201 is connected to the heating structure 207 with bolts, the lower end of the first stirring tank 201 is connected to the first electric telescopic rod 208 with bolts, the upper end of the first electric telescopic rod 208 is connected to the first conical cover 210 with bolts, the lower end of the first conical cover 210 is embedded with the first sealing ring 209, the lower end of the first stirring tank 201 is connected to the first control structure 211 with bolts, and the lower end of the first control structure 211 is connected to the first electric telescopic rod 208 with bolts. The first pipe 212 is connected with bolts, the first inclined filter screen 213 is connected with bolts inside the first pipe 212, one side of the first pipe 212 is connected with bolts to the storage structure 3, the support block 304 is welded inside the storage groove 301 in the storage structure 3, the first filter screen 305 is placed on the upper end of the support block 304, the connecting pieces 306 are welded on the upper ends of the four sides of the first filter screen 305, the upper end of the connecting piece 306 is fastened to the support block 304, the lower end of the third pipe 311 in the storage structure 3 is connected with bolts to the lower stirring tank 4, one side of the fourth pipe 410 in the lower stirring tank 4 is connected with bolts to the receiving structure 5, and the upper end of the connecting port 502 in the receiving structure 5 is connected with bolts to the extraction pump 505.

[0026] Furthermore, the upper end of the first pillar 101 in the bracket 1 is connected to the first connecting plate 102 with bolts, the four sides of the upper end of the first connecting plate 102 are connected to the second pillar 103 with bolts, and the upper end of the second pillar 103 is connected to the second connecting plate 104 with bolts. The first pillar 101 and the second connecting plate 102 and the second pillar 103 and the second connecting plate 104 are used to support the first mixing tank 201 and the second mixing tank 401.

[0027] Furthermore, the upper end of the first stirring tank 201 in the upper stirring tank 2 is bolted to the first motor 202, the lower end of the first motor 202 is bolted to the first stirring rod 203, the upper end of the first stirring tank 201 is bolted to the first detection device 204, one side of the upper end of the first stirring tank 201 is hollowed into a first injection port 205, one side of the first stirring tank 201 is bolted to the temperature control device 206, the lower end of the first stirring tank 201 is bolted to the heating structure 207, the first detection device 204 bolted to the upper end of the first stirring tank 201 is used to detect whether the material inside the first stirring tank 201 meets the standards, and the first injection port 205 is used to inject material into the first stirring tank 201.

[0028] Furthermore, the lower end of the first stirring tank 201 is bolted to the first electric telescopic rod 208, the upper end of the first electric telescopic rod 208 is bolted to the four sides of the lower end of the first conical cover 210, the lower end of the first conical cover 210 is embedded in the first sealing ring 209, the lower end of the first electric telescopic rod 208 is bolted to the first control structure 211, the lower end of the first control structure 211 is bolted to the first pipe 212, the hollow inside of the first pipe 212 is bolted to the first inclined filter screen 213, one side of the first pipe 212 is bolted to the storage structure 3, the first electric telescopic rod 208 is used to enable the first conical cover 210 to move up and down, the first sealing ring 209 embedded in the lower end of the first conical cover 210 is used to block the hole at the lower end of the first stirring tank 201, and the first inclined filter screen 213 bolted inside the first pipe 212 is used to allow the filter residue at the upper end of the filter screen 213 to flow into the storage tank 301.

[0029] Furthermore, the storage groove 301 in the storage structure 3 is hollow inside, and a threaded structure 302 protrudes from the upper end of the storage groove 301, and the outer side of the threaded structure 302 is rotatably connected to the threaded cover 303. A support block 304 protrudes from the inside of the storage groove 301, and a first filter screen 305 is placed on the upper end of the support block 304. The lower end of the connecting piece 306 is welded to the four sides of the upper end of the first filter screen 305, and the upper end of the connecting piece 306 is fastened to the lower end of the connecting rod 307. The upper end of the connecting rod 307 is connected to the lower end of the connecting cover 308 with bolts, and the lower end of the storage groove 301 is bolted to the second filter screen 309, one side of the storage groove 301 is bolted to the second pipe 310, and the lower end of the storage groove 301 is bolted to the third pipe 311, and the four sides of the upper end of the first filter screen 305 are connected to the four sides of the lower end of the connecting cover 308 with the connecting rod 307 to enable the first filter screen 305 to be replaced and cleaned.

[0030] Furthermore, one side of the second stirring tank 401 in the lower end stirring tank 4 is bolted to the second motor 402, the lower end of the second motor 402 is bolted to the second stirring rod 403, the upper end of the second stirring tank 401 is hollowed into a second injection port 404, the upper end of the second stirring tank 401 is bolted to the second detection device 405, the lower end of the second stirring tank 401 is bolted to the second electric telescopic rod 406, the upper end of the second electric telescopic rod 406 is bolted to the four sides of the lower end of the second conical cover 407, the lower end of the second conical cover 407 is embedded with a second sealing ring 408, the lower end of the second stirring tank 401 is bolted to the upper end of the second control structure 409, the lower end of the second control structure 409 is bolted to the fourth pipe 410, the hollow inside of the fourth pipe 410 is bolted to the second inclined filter screen 411, one side of the lower end of the fourth pipe 410 is bolted to the receiving structure 5, and the fourth pipe 410 bolted to the lower end of the second stirring tank 401 is used to connect with the receiving structure 5.

[0031] Furthermore, the upper end of the receiving tank 501 in the receiving structure 5 is hollow to form a connecting port 502, the lower end of the connecting port 502 is bolted to the fifth pipe 503, the upper end of the connecting port 502 is bolted to the extraction pump 505, one side of the receiving tank 501 is bolted to the discharge port 504, the upper end of the extraction pump 505 is bolted to the sixth pipe 506, the upper end of the sixth pipe 506 is bolted to one side of the first stirring tank 201, and the extraction pump 505 in the receiving structure 5 is used to connect to the upper end of the receiving tank 501 so that the material inside the receiving tank 501 can be extracted by the extraction pump 505 and enter the first stirring tank 201.

[0032] Working principle: when in use, first inject material from the first injection port 205, make the material enter the first stirring tank 201, then turn on the first motor 202, make the first motor 202 rotate the first stirring rod 203 at the lower end, start the temperature control device 206 so that the temperature control device 206 controls the heating structure 207 to heat the material inside the first stirring tank 201, and use the first detection device 204 to detect the material inside the first stirring tank 201. After the stirring is completed, turn on the first control structure 211 so that the first control structure 211 controls the first electric telescopic rod 208 to move up and down, and the first electric telescopic rod 208 supports the first conical cover 210 connected with bolts at the upper end and moves upward to make the material inside the first stirring tank 201 flow from the lower end of the first stirring tank 201 into the second stirring tank 401. When the material passes through the first pipe 212, it will be filtered by the first oblique filter 213, and the filter residue at the upper end of the first oblique filter 213 will flow into the first filter 30 inside the storage tank 301 under the flushing of the material. 5, when the materials in the first stirring tank 201 are poured into the second stirring tank 401, the threaded cover 303 can be rotated to open the upper end of the storage tank 301, and the upper end of the connecting cover 308 can be pinched to take the first filter 305 out of the storage tank 301 to clean the filter residue at the upper end. After the materials in the second stirring tank 401 are stirred by the second stirring rod 403 driven by the second motor 402, the second control structure 409 is opened to control the second electric telescopic rod at the upper end. 406 causes the second electric telescopic rod to push against the second conical cover 407 and move upward so that the material inside the second stirring tank 401 flows from the lower end of the second conical cover 407 into the fourth pipe 410, and flows into the storage tank while being filtered by the second inclined filter screen 411 connected by bolts inside the fourth pipe 410. After the filtered material flows into the receiving tank 501, the suction pump 505 is started to pump the material inside the receiving tank 501 into the first stirring tank 201 for circulating washing and filtering.

[0033] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A circulating crude product washing device for methyl benzoate, comprising: A support (1), an upper stirring tank (2), a storage structure (3), a lower stirring tank (4) and a receiving structure (5); The invention is characterized in that: the second connecting plate (104) in the bracket (1) is internally connected to the upper stirring tank (2) by bolts; the upper end of the first stirring tank (201) in the upper stirring tank (2) is connected to the first detection device (204) by bolts; the first stirring tank (201) is connected to the temperature control device (206) by bolts; the lower end of the first stirring tank (201) is connected to the heating structure (207) by bolts; the lower end of the first stirring tank (201) is connected to the first electric telescopic rod (208) by bolts; the upper end of the first electric telescopic rod (208) is connected to the first conical cover (210) by bolts; the lower end of the first conical cover (210) is embedded with a first sealing ring (209); the lower end of the first stirring tank (201) is connected to the first control structure (211) by bolts; the lower end of the first control structure (21 ... The first pipe (212) is bolted to the first inclined filter screen (213) inside the first pipe (212), one side of the first pipe (212) is bolted to the storage structure (3), a support block (304) is welded inside the storage groove (301) in the storage structure (3), a first filter screen (305) is placed on the upper end of the support block (304), connecting pieces (306) are welded to the upper ends of four sides of the first filter screen (305), the upper end of the connecting piece (306) fastens the support block (304), the lower end of the third pipe (311) in the storage structure (3) is bolted to the lower stirring tank (4), one side of the fourth pipe (410) in the lower stirring tank (4) is bolted to the storage structure (5), and the upper end of the connection port (502) in the storage structure (5) is bolted to the material extraction pump (505).

2. The circulating crude methyl benzoate washing device according to claim 1, characterized in that: The upper end of the first pillar (101) in the bracket (1) is connected to the first connecting plate (102) by bolts, the four sides of the upper end of the first connecting plate (102) are connected to the second pillar (103) by bolts, and the upper end of the second pillar (103) is connected to the second connecting plate (104) by bolts.

3. A circulating crude methyl benzoate washing device according to claim 2, characterized in that: The upper end of the first stirring tank (201) in the upper stirring tank (2) is connected to the first motor (202) by bolts, the lower end of the first motor (202) is connected to the first stirring rod (203) by bolts, the upper end of the first stirring tank (201) is connected to the first detection device (204) by bolts, and one side of the upper end of the first stirring tank (201) is hollowed to form a first injection port (205).

4. The circulating crude methyl benzoate washing device according to claim 3, characterized in that: The upper end of the first electric telescopic rod (208) is connected to four sides of the lower end of the first conical cover (210) by bolts, the lower end of the first electric telescopic rod (208) is connected to the first control structure (211) by bolts, and the hollow portion inside the first pipe (212) is connected to the first inclined filter screen (213) by bolts.

5. The circulating crude methyl benzoate washing device according to claim 1, characterized in that: The storage groove (301) in the storage structure (3) is hollow inside, and a threaded structure (302) protrudes from the upper end of the storage groove (301). The outer side of the threaded structure (302) is rotatably connected to a threaded cover (303). A support block (304) protrudes from the inside of the storage groove (301). A first filter screen (305) is placed on the upper end of the support block (304). The lower ends of connecting pieces (306) are welded to the four sides of the upper end of the first filter screen (305). The upper end of the connecting piece (306) fastens the lower end of a connecting rod (307). The upper end of the connecting rod (307) is connected to the lower end of a connecting cover (308) by bolts. The lower end of the storage groove (301) is connected to a second filter screen (309) by bolts. One side of the storage groove (301) is connected to a second pipe (310) by bolts, and the lower end of the storage groove (301) is connected to a third pipe (311) by bolts.

6. The circulating crude methyl benzoate washing device according to claim 1, characterized in that: One side of the second stirring tank (401) in the lower stirring tank (4) is connected to the second motor (402) by bolts, the lower end of the second motor (402) is connected to the second stirring rod (403) by bolts, the upper end of the second stirring tank (401) is hollowed to form a second injection port (404), the upper end of the second stirring tank (401) is connected to the second detection device (405) by bolts, the lower end of the second stirring tank (401) is connected to the second electric telescopic rod (406) by bolts, and the second electric telescopic rod (406) The upper end is connected to the four sides of the lower end of the second conical cover (407) by bolts, the lower end of the second conical cover (407) is embedded in the second sealing ring (408), the lower end of the second stirring tank (401) is connected to the upper end of the second control structure (409) by bolts, the lower end of the second control structure (409) is connected to the fourth pipe (410) by bolts, the hollow part inside the fourth pipe (410) is connected to the second inclined filter screen (411) by bolts, and one side of the lower end of the fourth pipe (410) is connected to the receiving structure (5) by bolts.

7. The circulating crude methyl benzoate washing device according to claim 1, characterized in that: The upper end of the receiving tank (501) in the receiving structure (5) is hollow to form a connecting port (502); the lower end of the connecting port (502) is connected to a fifth pipeline (503) by bolts; the upper end of the connecting port (502) is connected to a material extraction pump (505) by bolts; one side of the receiving tank (501) is connected to a material discharge port (504) by bolts; the upper end of the material extraction pump (505) is connected to a sixth pipeline (506) by bolts; and the upper end of the sixth pipeline (506) is connected to one side of the first stirring tank (201) by bolts.

Images