A kind of adsorber for methyl chloroacetate recovery

Abstract

The utility model discloses an adsorber for recovering methyl chloroacetate, comprising an adsorber body, and also comprising a first adsorption chamber, wherein the first adsorption chamber is arranged inside the adsorber body, a runner is installed inside the first adsorption chamber, and the outer wall of the runner is clamped with activated carbon adsorption plates at equal intervals, and a rotating drive is installed on the outer wall of the adsorber body at the position of the runner, and the output end of the rotating drive is fixedly connected to the runner; a second adsorption chamber, wherein the second adsorption chamber is arranged on the top of the adsorber body; a circulation pipe, wherein the circulation pipe is installed on the outer wall of the bottom of the second adsorption chamber, one end of the circulation pipe is connected to the first adsorption chamber, and a circulation valve is installed at one end inside the circulation pipe. The utility model adopts a multi-stage adsorption structure, which can more thoroughly adsorb methyl chloroacetate, and prolong the flow path of the waste gas, slow down the flow rate of the waste gas, and has high adsorption efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of methyl chloroacetate recovery, in particular to an adsorber for methyl chloroacetate recovery. Background Art

[0002] Methyl chloroacetate is an organic compound with the chemical formula C3H5ClO2. It is a colorless transparent liquid, slightly soluble in water, and miscible in ethanol, ether, acetone, and benzene. It is mainly used as an organic synthesis intermediate for the preparation of the synthetic insecticide dimethoate, and can also be used as a solvent.

[0003] When factories recycle methyl chloroacetate, they usually use an adsorption tower to recover it. Activated carbon is arranged in the adsorption tower to adsorb methyl chloroacetate. After the methyl chloroacetate waste gas enters the adsorption tower from the lower side of the adsorption tower, it is discharged from the upper side of the adsorption tower. However, the flow path of the methyl chloroacetate waste gas in the adsorption tower is short, and the residence time is short. It is difficult for the methyl chloroacetate waste gas to fully contact with the activated carbon in the adsorption tower, and the adsorption efficiency is low. Therefore, improvement is urgently needed. Utility Model Content

[0004] The utility model aims to provide an adsorber for recovering methyl chloroacetate to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: an adsorber for recovering methyl chloroacetate, comprising an adsorber main body, and

[0006] A first adsorption chamber, wherein the first adsorption chamber is arranged inside the adsorber body, a rotating wheel is installed inside the first adsorption chamber, and activated carbon adsorption plates with equal spacing are clamped on the outer wall of the rotating wheel, and a rotating driving member is installed on the outer wall of the adsorber body at the position of the rotating wheel, and the output end of the rotating driving member is fixedly connected to the rotating wheel;

[0007] A second adsorption chamber, wherein the second adsorption chamber is arranged at the top of the adsorber body, and grid plates are fixed in the first channel, the second channel, the third channel, and the fourth channel inside the second adsorption chamber, and activated carbon blocks are arranged between the grid plates;

[0008] A circulation pipe is installed on the outer wall of the bottom of the second adsorption chamber, one end of the circulation pipe is communicated with the first adsorption chamber, and a circulation valve is installed at one end inside the circulation pipe.

[0009] Preferably, a first sealing door is installed on the outer wall of the adsorber body at the position of the first adsorption chamber, so that the activated carbon adsorption plate can be taken out.

[0010] Preferably, the first adsorption chamber is communicated with the filter box through an air inlet channel, and the first adsorption chamber is communicated with the second adsorption chamber through an air outlet channel.

[0011] Preferably, a filter box is fixed on the top of the adsorber body at the position of the air inlet channel, the filter box is connected to the air inlet channel, and a filter screen is arranged inside the filter box to filter the exhaust gas and filter out the particulate impurities inside.

[0012] Preferably, a sealing cover is sleeved on the outside of the filter box, an air intake pipe is installed on the top of the sealing cover, and an air intake valve is installed inside the air intake pipe.

[0013] Preferably, a second sealing door is installed on the outer wall of the adsorber body at the position of the second adsorption chamber, so that the activated carbon block can be taken out.

[0014] Preferably, an exhaust pipe is installed above the circulation pipe, and an exhaust valve is installed inside the exhaust pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The methyl chloroacetate waste gas enters the first adsorption chamber through the air inlet channel, and the rotating driving member drives the runner to rotate, and the runner drives the activated carbon adsorption plate to rotate in a counterclockwise direction, so that the waste gas is fully in contact with the activated carbon adsorption plate inside the first adsorption chamber, and the activated carbon adsorption plate preliminarily adsorbs the methyl chloroacetate in the waste gas. The activated carbon adsorption plate rotates and pushes the waste gas to flow from the air outlet channel to the second adsorption chamber, and the waste gas flows through the first channel, the second channel, the third channel, and the fourth channel in sequence. The settings of the first channel, the second channel, the third channel, and the fourth channel extend the flow path of the waste gas and slow down the flow rate of the waste gas, so that the waste gas is fully in contact with the activated carbon block, and the activated carbon block preliminarily adsorbs the methyl chloroacetate in the waste gas. The waste gas is adsorbed again, and then the air inlet valve is closed, the introduction of waste gas is suspended, and the circulation valve is opened, so that the waste gas in the second adsorption chamber re-enters the first adsorption chamber through the circulation pipe, and the activated carbon adsorption plate adsorbs methyl chloroacetate again, and enters the second adsorption chamber again under the driving action of the activated carbon adsorption plate, and the activated carbon block adsorbs methyl chloroacetate again. After the waste gas circulates in the first adsorption chamber and the second adsorption chamber for several times, the methyl chloroacetate in the waste gas is fully adsorbed by the activated carbon adsorption plate and the activated carbon block, and the circulation valve is closed, and the exhaust valve is opened to discharge the waste gas through the exhaust pipe. The adsorber adopts a multi-stage adsorption structure, and the adsorption of methyl chloroacetate is more thorough and the adsorption efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the appearance structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the enlarged structure of the rotating wheel of the utility model;

[0020] Figure 4 It is a schematic diagram of the enlarged structure of the second adsorption chamber of the utility model.

[0021] In the figure: 1. adsorber body; 2. first adsorption chamber; 201. air inlet channel; 202. air outlet channel; 3. rotor; 301. rotating drive member; 4. activated carbon adsorption plate; 5. filter box; 501. filter screen; 6. sealing cover; 7. air inlet pipe; 701. air inlet valve; 8. second adsorption chamber; 801. first channel; 802. second channel; 803. third channel; 804. fourth channel; 9. first sealing door; 10. second sealing door; 11. grid plate; 12. activated carbon block; 13. exhaust pipe; 1301. exhaust valve; 14. circulation pipe; 1401. circulation valve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: an adsorber for recovering methyl chloroacetate, comprising an adsorber body 1, and also comprising

[0024] A first adsorption chamber 2, the first adsorption chamber 2 is arranged inside the adsorber body 1, a rotor 3 is installed inside the first adsorption chamber 2, and the outer wall of the rotor 3 is clamped with activated carbon adsorption plates 4 at equal intervals, and a rotary drive member 301 is installed on the outer wall of the adsorber body 1 at the position of the rotor 3, and the output end of the rotary drive member 301 is fixedly connected to the rotor 3;

[0025] Specifically, the exhaust gas enters the first adsorption chamber 2 through the air inlet channel 201. At this time, the rotary drive member 301 drives the runner 3 to rotate, and the runner 3 drives the activated carbon adsorption plate 4 to rotate in a counterclockwise direction, so that the exhaust gas is fully in contact with the activated carbon adsorption plate 4 inside the first adsorption chamber 2, and the activated carbon adsorption plate 4 preliminarily adsorbs the methyl chloroacetate in the exhaust gas;

[0026] The second adsorption chamber 8 is arranged at the top of the adsorber body 1, and grid plates 11 are fixed in the first channel 801, the second channel 802, the third channel 803, and the fourth channel 804 inside the second adsorption chamber 8, and activated carbon blocks 12 are arranged between the grid plates 11;

[0027] Specifically, the activated carbon adsorption plate 4 rotates and pushes the exhaust gas to flow from the gas outlet channel 202 to the second adsorption chamber 8, and the exhaust gas flows through the first channel 801, the second channel 802, the third channel 803, and the fourth channel 804 in sequence. The arrangement of the first channel 801, the second channel 802, the third channel 803, and the fourth channel 804 extends the flow path of the exhaust gas and slows down the flow rate of the exhaust gas, so that the exhaust gas is fully in contact with the activated carbon block 12, and the activated carbon block 12 re-adsorbs the methyl chloroacetate in the exhaust gas;

[0028] A circulation pipe 14, which is installed on the outer wall at the bottom of the second adsorption chamber 8, one end of the circulation pipe 14 is connected to the first adsorption chamber 2, and a circulation valve 1401 is installed at one end of the circulation pipe 14;

[0029] Specifically, the circulation valve 1401 is opened, so that the exhaust gas in the second adsorption chamber 8 re-enters the first adsorption chamber 2 through the circulation pipe 14, the activated carbon adsorption plate 4 adsorbs methyl chloroacetate again, and enters the second adsorption chamber 8 again under the driving action of the activated carbon adsorption plate 4, and the activated carbon block 12 adsorbs methyl chloroacetate again;

[0030] A first sealing door 9 is installed on the outer wall of the adsorber body 1 at the position of the first adsorption chamber 2;

[0031] The first adsorption chamber 2 is connected to the filter box 5 through the air inlet channel 201, and the first adsorption chamber 2 is connected to the second adsorption chamber 8 through the air outlet channel 202;

[0032] A filter box 5 is fixed on the top of the adsorber body 1 at the position of the air inlet channel 201. The filter box 5 is communicated with the air inlet channel 201, and a filter screen 501 is arranged inside the filter box 5.

[0033] Specifically, the methyl chloroacetate waste gas is introduced into the first adsorption chamber 2 inside the adsorber body 1 through the air inlet pipe 7, wherein the waste gas first passes through the filter box 5, and the filter screen 501 filters the waste gas to filter out the particulate impurities inside the waste gas;

[0034] The filter box 5 is externally sleeved with a sealing cover 6, and an air intake pipe 7 is installed at the top of the sealing cover 6, and an air intake valve 701 is installed inside the air intake pipe 7;

[0035] A second sealing door 10 is installed on the outer wall of the adsorber body 1 at the position of the second adsorption chamber 8;

[0036] An exhaust pipe 13 is installed above the circulation pipe 14 , and an exhaust valve 1301 is installed inside the exhaust pipe 13 .

[0037] When the embodiment of the present application is used: first, the methyl chloroacetate waste gas is introduced into the first adsorption chamber 2 inside the adsorber body 1 through the air inlet pipe 7, wherein the waste gas first passes through the filter box 5, and the filter screen 501 filters the waste gas to filter out the particulate impurities inside it, and then the waste gas enters the first adsorption chamber 2 through the air inlet channel 201. At this time, the rotating driving member 301 drives the runner 3 to rotate, and the runner 3 drives the activated carbon adsorption plate 4 to rotate in a counterclockwise direction, so that the waste gas is filled with the activated carbon adsorption plate 4 inside the first adsorption chamber 2. The activated carbon adsorption plate 4 initially adsorbs the methyl chloroacetate in the exhaust gas, and then the activated carbon adsorption plate 4 rotates and pushes the exhaust gas to flow from the exhaust channel 202 to the second adsorption chamber 8. The exhaust gas flows through the first channel 801, the second channel 802, the third channel 803, and the fourth channel 804 in sequence. The first channel 801, the second channel 802, the third channel 803, and the fourth channel 804 extend the flow path of the exhaust gas and slow down the flow rate of the exhaust gas, so that the exhaust gas is fully in contact with the activated carbon block 12. The activated carbon block 12 adsorbs the methyl chloroacetate in the exhaust gas again. Then, the air inlet valve 701 is closed to stop introducing the exhaust gas. The circulation valve 1401 is opened to allow the exhaust gas in the second adsorption chamber 8 to re-enter the first adsorption chamber 2 through the circulation pipe 14. The activated carbon adsorption plate 4 adsorbs the methyl chloroacetate again and enters the second adsorption chamber 8 again under the driving action of the activated carbon adsorption plate 4. The activated carbon block 12 adsorbs the methyl chloroacetate again. After the exhaust gas circulates in the first adsorption chamber 2 and the second adsorption chamber 8 for several times, the exhaust gas is The methyl chloroacetate in the gas is fully adsorbed by the activated carbon adsorption plate 4 and the activated carbon block 12. The circulation valve 1401 is closed and the exhaust valve 1301 is opened to discharge the exhaust gas through the exhaust pipe 13. The adsorber adopts a multi-stage adsorption structure, which can adsorb methyl chloroacetate more thoroughly and with high adsorption efficiency. Finally, the first sealing door 9 can be opened to take out the activated carbon adsorption plate 4, and the second sealing door 10 can be opened to take out the activated carbon block 12. In addition, the sealing cover 6 can be lifted to open the filter box 5 so as to clean the filter screen 501.

[0038] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adsorber for recovering methyl chloroacetate, comprising an adsorber body (1), characterized in that: Also includes A first adsorption chamber (2), wherein the first adsorption chamber (2) is arranged inside the adsorber body (1), a rotating wheel (3) is installed inside the first adsorption chamber (2), and activated carbon adsorption plates (4) are clamped on the outer wall of the rotating wheel (3) at equal intervals, and a rotating driving member (301) is installed on the outer wall of the adsorber body (1) at the position of the rotating wheel (3), and the output end of the rotating driving member (301) is fixedly connected to the rotating wheel (3); A second adsorption chamber (8), wherein the second adsorption chamber (8) is arranged at the top of the adsorber body (1), and grid plates (11) are fixed in the first channel (801), the second channel (802), the third channel (803), and the fourth channel (804) inside the second adsorption chamber (8), and activated carbon blocks (12) are arranged between the grid plates (11); A circulation pipe (14), wherein the circulation pipe (14) is installed on the outer wall of the bottom of the second adsorption chamber (8), one end of the circulation pipe (14) is connected to the first adsorption chamber (2), and a circulation valve (1401) is installed at one end inside the circulation pipe (14).

2. The adsorber for recovering methyl chloroacetate according to claim 1, wherein: A first sealing door (9) is installed on the outer wall of the adsorber body (1) at the position of the first adsorption chamber (2).

3. The adsorber for recovering methyl chloroacetate according to claim 1, characterized in that: The first adsorption chamber (2) is in communication with the filter box (5) via an air inlet channel (201), and the first adsorption chamber (2) is in communication with the second adsorption chamber (8) via an air outlet channel (202).

4. The adsorber for recovering methyl chloroacetate according to claim 3, wherein: A filter box (5) is fixed to the top of the adsorber body (1) at the position of the air inlet channel (201); the filter box (5) is in communication with the air inlet channel (201), and a filter screen (501) is arranged inside the filter box (5).

5. The adsorber for recovering methyl chloroacetate according to claim 4, characterized in that: The filter box (5) is sheathed with a sealing cover (6) on the outside, an air intake pipe (7) is installed on the top of the sealing cover (6), and an air intake valve (701) is installed inside the air intake pipe (7).

6. The adsorber for recovering methyl chloroacetate according to claim 1, characterized in that: A second sealing door (10) is installed on the outer wall of the adsorber body (1) at the position of the second adsorption chamber (8).

7. The adsorber for recovering methyl chloroacetate according to claim 1, characterized in that: An exhaust pipe (13) is installed above the circulation pipe (14), and an exhaust valve (1301) is installed inside the exhaust pipe (13).

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