Suction filtration equipment for production of methyl 4-methoxyacetoacetate

Abstract

The utility model relates to the technical field of chemical equipment, in particular to suction filtration equipment for producing methyl 4-methoxyacetoacetate, which comprises a suction filtration box and a box cover, a filter element can be inserted into a suction filtration box along a positioning groove through a positioning block installed on the outer wall of a fixing cover, the filter element can be supported through a fixing ring at the edge of the filter element and a supporting ring installed on the inner wall of the suction filtration box, and the filter element can be conveniently fixed through an abutting block installed at the position, close to the bottom end of the positioning groove, of a box cover when the box cover is installed. According to the suction filtration device, the positioning blocks abut against and are fixed, preliminary fixing of the filter element is achieved, a handle can be rotated through a fixing rod installed on the outer wall of the suction filtration box in a threaded mode, the fixing rod is inserted into a fixing groove of a fixing ring, then the filter element is fixed again, fixing of the fixing ring can be relieved by reversely rotating the handle, then the box cover is conveniently detached, and the filter element is conveniently taken out; the filter element can be quickly disassembled and assembled, so that the operation is relatively simple and convenient when a worker regularly replaces the filter element, and the replacement efficiency of the filter element is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technical field of chemical equipment, concretely is a suction filtration equipment for 4 - methoxy acetoacetic acid methyl ester production. BACKGROUND

[0002] 4-methoxy acetoacetic acid methyl ester is an organic compound, colorless transparent liquid, has aromatic smell, is often used as pharmaceutical, pesticide intermediate, at present 4-methoxy acetoacetic acid methyl ester is mainly used for the synthesis of new type anti-aids drug Dolutegravir, and its quality and the price have great influence on further synthesis Dolutegravir, needs using suction filtration device to carry out suction filtration operation to 4-methoxy acetoacetic acid methyl ester in its processing process, makes its purity higher.

[0003] In the prior art, the storage tank of 4-methoxy acetoacetic acid methyl ester stock solution is connected with the liquid inlet pipe of the suction filtration device, then the vacuum pump is used to make the suction filtration device in a vacuum state, and the stock solution is pressed into the suction filtration device according to the pressure difference, so that the suction filtration device can be used to filter 4-methoxy acetoacetic acid methyl ester.

[0004] However, the existing suction filtration equipment is difficult to quickly disassemble and assemble the filter element, so that the operation of the staff is more complicated when regularly replacing the filter element, and the replacement efficiency of the filter element is reduced. Therefore, we provide a suction filtration equipment for 4-methoxy acetoacetic acid methyl ester production. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a suction filtration equipment for 4-methoxy acetoacetic acid methyl ester production to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a suction filtration equipment for 4-methoxy acetoacetic acid methyl ester production, comprising: a suction filtration box and a box cover, a filter element is arranged in the top end of the suction filtration box, a support ring is fixedly installed on the inner side wall of the suction filtration box close to the filter element, and a fixing ring is fixedly connected to the edge of the filter element;

[0007] A fixing cover is fixedly installed at the top end of the fixing ring, a positioning block is connected to the top end outer wall of the fixing cover, a positioning groove is arranged at the top end of the suction filtration box close to the positioning block, and a pressing block is installed at the bottom end of the box cover close to the positioning groove;

[0008] A threaded hole is arranged in the outer wall of the suction filtration box close to the fixing ring, a fixing rod is threadedly connected to the inner wall of the threaded hole, a fixing groove is arranged in the side wall of the fixing ring close to the fixing rod, a handle is installed at one end of the fixing rod, and the other end of the fixing rod passes through the threaded hole and is slidably inserted into the fixing groove.

[0009] Preferably, the top end of the box cover is uniformly distributed and threaded with four mounting bolts, the top end of the box cover is fixedly provided with a liquid inlet pipe, and the bottom end of the liquid inlet pipe penetrates the box cover and is connected in communication with the inside of the filter box.

[0010] Preferably, the bottom end of the filter box is fixedly provided with a liquid outlet pipe, the top end of the liquid outlet pipe is connected in communication with the inside of the filter box, and the outer wall of the liquid outlet pipe is provided with a valve.

[0011] Preferably, the positioning blocks are uniformly provided with four and fixedly installed on the outer wall of the fixed cover, and the top end of the fixed cover close to the four positioning blocks is fixedly provided with a pull rod.

[0012] Preferably, the abutting blocks are uniformly provided with four and fixedly installed on the bottom end of the box cover, and the bottom end of the four abutting blocks is slidably inserted into the adjacent positioning groove and abuts against the corresponding positioning block.

[0013] Preferably, the fixed rods are symmetrically provided with two, and the outer wall of one end of the two fixed rods is provided with a connecting thread, and one end of the two fixed rods penetrates the adjacent threaded hole and is threadedly connected with the threaded hole.

[0014] Preferably, the filter box is fixedly provided with a gasket on the outer wall close to the two threaded holes, and the two handles are fixedly installed on the adjacent fixed rods and tightly abut against the corresponding gaskets.

[0015] Compared with the prior art, the filter box has the advantages that:

[0016] The positioning blocks installed on the outer wall of the fixed cover can insert the filter core into the filter box along the positioning groove, the fixed ring at the edge of the filter core is fixed, the support ring is installed on the inner wall of the filter box, the filter core can be supported, the abutting blocks installed on the bottom end of the box cover close to the positioning groove can be tightly fixed to the positioning blocks when the box cover is installed, the preliminary fixation of the filter core is realized, the fixed rods are threadedly installed on the outer wall of the filter box, the handle can be rotated to make the fixed rods inserted into the fixed grooves of the fixed rings, and then the filter core is fixed again, the handle is reversely rotated to release the fixation of the fixed rings, and then the box cover is conveniently disassembled and the filter core is taken out, the quick disassembly and assembly of the filter core are realized, the operation of the staff when regularly replacing the filter core is more convenient, and the replacement efficiency of the filter core is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure perspective view of the utility model;

[0018] Figure 2 It is a local structure perspective sectional view of the utility model;

[0019] Figure 3 It is a local structure perspective sectional view of the utility model Figure 2Structure schematic view of the middle A is enlarged;

[0020] Figure 4 The utility model discloses Figure 2 Structure schematic view of the middle B is enlarged;

[0021] Figure 5 The utility model discloses

[0022] In the drawing: 1, filter box;2, box cover;3, mounting bolt;4, filter core;5, support ring;6, fixed ring;7, fixed cover;8, pull rod;9, positioning block;10, positioning groove;11, liquid inlet pipe;12, liquid outlet pipe;13, fixed rod;14, fixed groove;15, screw hole;16, connecting thread;17, handle;18, valve;19, abutting block;20, gasket. DETAILED DESCRIPTION

[0023] In order to make the utility model purposes, technical scheme carry out clearly, complete description, and the advantage is more clear and distinct, following combining the drawing to the utility model embodiment further detailed explanation.Should understand, the specific embodiment described here is the utility model a part of embodiment, instead of all the embodiment, only use to explain the utility model embodiment, and do not use to limit the utility model embodiment, the all other embodiment that the ordinary skill in the art person obtains under the premise of not making the creative labor, belong to the range of the utility model protection.

[0024] Please refer to Figures 1 to 5 The utility model provides a technical scheme: a kind of filter equipment for 4-methoxy acetoacetic acid methyl ester production, it include: filter box 1 and box cover 2, the top inside of filter box 1 is provided with filter core 4, and the inside side wall of filter box 1 close to filter core 4 is fixedly installed with support ring 5, and the edge of filter core 4 is fixedly connected with fixed ring 6;Four mounting bolts 3 are evenly distributed and screw installed on the top of box cover 2, and the top of box cover 2 is fixedly installed with liquid inlet pipe 11, and the bottom of liquid inlet pipe 11 penetrates box cover 2 and is connected with the inside of filter box 1, to facilitate the detachable installation of box cover 2 on the top of filter box 1 by mounting bolt 3.The bottom of filter box 1 is fixedly installed with liquid outlet pipe 12, and the top of liquid outlet pipe 12 is connected with the inside of filter box 1, and the outer wall of liquid outlet pipe 12 is provided with valve 18, to facilitate the discharge of liquid after filtration.

[0025] The top end of the fixed ring 6 is fixedly installed with a fixed cover 7, the top end outer wall of the fixed cover 7 is connected with a positioning block 9, the top end of the positioning block 9 is close to the positioning slot 10 of the filter box 1, and the bottom end of the positioning slot 10 is close to the abutting block 19 installed on the box cover 2; the four positioning blocks 9 are evenly arranged and fixedly installed on the outer wall of the fixed cover 7, the top end of the fixed cover 7 close to the four positioning blocks 9 is fixedly installed with a pull rod 8, the pull rod 8 is convenient to pull out the fixed cover 7 and the filter core 4. The four abutting blocks 19 are evenly arranged and fixedly installed on the bottom end of the box cover 2, the bottom end of the four abutting blocks 19 is slidably inserted into the adjacent positioning slot 10 and abuts against the corresponding positioning block 9, and the positioning block 9 is convenient to abut and fix.

[0026] The outer wall of the filter box 1 close to the fixed ring 6 is provided with a threaded hole 15, the inner wall of the threaded hole 15 is threadedly connected with a fixed rod 13, the side wall of the fixed ring 6 close to the fixed rod 13 is provided with a fixed slot 14, one end of the fixed rod 13 is provided with a handle 17, and the other end of the fixed rod 13 passes through the threaded hole 15 and is slidably inserted into the fixed slot 14. The two fixed rods 13 are symmetrically arranged, the outer wall of one end of the two fixed rods 13 is provided with a connecting thread 16, and one end of the two fixed rods 13 passes through the adjacent threaded hole 15 and is threadedly connected with the threaded hole 15, so that the fixed ring 6 is fixed by rotating the fixed rod 13. The outer wall of the filter box 1 close to the two threaded holes 15 is fixedly installed with a gasket 20, and the two handles 17 are fixedly installed on the adjacent fixed rod 13 and tightly abut against the corresponding gasket 20, so that the tightness of the handle 17 and the outer wall of the filter box 1 is improved.

[0027] When the device works, the filter core 4 is inserted into the filter box 1 along the positioning slot 10 through the positioning block 9 installed on the outer wall of the fixed cover 7, the filter core 4 is supported through the fixed ring 6 at the edge of the filter core 4 and the support ring 5 installed on the inner wall of the filter box 1, the positioning block 9 is abutted and fixed when the box cover 2 is installed through the abutting block 19 installed on the bottom end of the box cover 2 close to the positioning slot 10, the filter core 4 is preliminarily fixed, the fixed rod 13 is threadedly installed on the outer wall of the filter box 1, the handle 17 is rotated, the fixed rod 13 is inserted into the fixed slot 14 of the fixed ring 6, and the filter core 4 is fixed again, the fixed ring 6 is released by reversely rotating the handle 17, the box cover 2 is conveniently disassembled, and the filter core 4 is taken out, the filter core 4 is quickly disassembled and assembled, the operation of the staff is relatively simple when the filter core 4 is regularly replaced, and the replacement efficiency of the filter core 4 is improved.

[0028] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A suction filtration apparatus for the production of methyl 4-methoxyacetoacetate comprising: The utility model provides a filter box (1) and box cover (2), its characterized in be: the inside top of filter box (1) is provided with filter core (4), and the inside side wall of filter box (1) is fixedly installed with support ring (5) close to filter core (4), and the edge of filter core (4) is fixedly connected with fixed ring (6); The top of fixed ring (6) is fixedly installed with fixed cover (7), and the top outer wall of fixed cover (7) is connected with positioning block (9), and the top of filter box (1) is provided with positioning groove (10) close to positioning block (9), and the bottom of box cover (2) is installed with abutting block (19) close to positioning groove (10). The outer wall of filter box (1) is provided with screw hole (15) close to fixed ring (6), and the inner wall of screw hole (15) is threadedly connected with fixed rod (13), and the side wall of fixed ring (6) is provided with fixed groove (14) close to fixed rod (13), and one end of fixed rod (13) is installed with handle (17), and the other end of fixed rod (13) passes through screw hole (15) and is slidably inserted into fixed groove (14).

2. The suction filtration apparatus for the production of methyl 4-methoxyacetoacetate according to claim 1, characterized in that: The top of box cover (2) is uniformly distributed and is threadedly installed with four mounting bolts (3), and the top of box cover (2) is fixedly installed with liquid inlet pipe (11), and the bottom of liquid inlet pipe (11) penetrates through box cover (2) and is connected with the inside of filter box (1).

3. The suction filtration apparatus for the production of methyl 4-methoxyacetoacetate according to claim 1, characterized in that: The bottom of filter box (1) is fixedly installed with liquid outlet pipe (12), and the top of liquid outlet pipe (12) is connected with the inside of filter box (1), and the outer wall of liquid outlet pipe (12) is provided with valve (18).

4. The suction filtration apparatus for the production of methyl 4-methoxyacetoacetate according to claim 1, characterized in that: The outer wall of fixed cover (7) is uniformly provided with four positioning blocks (9) and is fixedly installed, and the top of fixed cover (7) is fixedly installed with pull rod (8) close to the four positioning blocks (9).

5. The suction filtration apparatus for the production of methyl 4-methoxyacetoacetate according to claim 1, characterized in that: The bottom of box cover (2) is uniformly provided with four abutting blocks (19) and is fixedly installed, and the bottom of the four abutting blocks (19) is slidably inserted into adjacent positioning groove (10) and is abutted with corresponding positioning block (9).

6. The suction filtration apparatus for the production of methyl 4-methoxyacetoacetate according to claim 1, characterized in that: The outer wall of one end of two fixed rods (13) close to handle (17) is provided with connecting thread (16), and one end of two fixed rods (13) penetrates through adjacent screw hole (15) and is threadedly connected with screw hole (15).

7. The suction filtration apparatus for the production of methyl 4-methoxyacetoacetate according to claim 1, characterized in that: The outer wall of filter box (1) is fixedly installed with gasket (20) close to two screw holes (15), and two handles (17) are fixedly installed on adjacent fixed rods (13) and are tightly attached to corresponding gaskets (20).

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