Waste gas treatment device for acrylic resin production

Abstract

The utility model discloses an acrylic resin production waste gas treatment device which comprises a treatment tank, a gas inlet pipe is arranged in the treatment tank, the bottom of the treatment tank is fixedly connected with a base, a baffle is arranged at the top of the gas inlet pipe, the acrylic resin production waste gas treatment device further comprises a purification device, and the purification device is arranged on one side of the outer wall of the treatment tank. The utility model relates to the technical field of waste gas treatment, through the cooperation of the connecting pipe, the purification box and the valve, after waste gas enters the treatment tank, the gas is diluted under the action of the spraying device, the diluted gas enters the purification box through the connecting pipe, and the gas passes through multiple layers of activated carbon, so that the waste gas is purified. And harmful gas in the gas is completely absorbed and discharged through the valve, and the activated carbon is laid and is convenient and fast to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field, concretely is acrylic resin production waste gas treatment device. BACKGROUND

[0002] In the production process of acrylic resin, a large amount of waste gas containing volatile organic compounds (VOCs) such as acrylic acid, benzene, ester, etc. is generated. These waste gases not only have irritating odor, pollute the atmospheric environment, but also some components have toxicity, causing damage to the respiratory system, nervous system, etc.

[0003] The prior art is connected above the acrylic acid production device when in use, so that the generated waste gas directly enters the purification device, and is discharged after treatment to avoid pollution to the environment.

[0004] However, in actual use, due to the large amount of waste gas generated in the production process of acrylic resin, the purification effect of the filter core is reduced after a long time of work, so that frequent replacement is required, which is inconvenient for the workers in actual use. UTILITY MODEL CONTENTS

[0005] In view of the shortcomings of the prior art, the utility model provides an acrylic resin production waste gas treatment device, which solves the problem that the filter core purification effect is reduced after a long time of work of the purification device due to the large amount of waste gas generated in the production process of acrylic resin, so that frequent replacement is required, which is inconvenient for the workers in actual use.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: an acrylic resin production waste gas treatment device, comprising a treatment tank, an air inlet pipe is installed in the inside of the treatment tank, a base is fixedly connected to the bottom of the treatment tank, a baffle is installed at the top of the air inlet pipe, the acrylic resin production waste gas treatment device further comprises a purification device, which is installed on one side of the outer wall of the treatment tank; a sealing device is installed on the outer wall of the purification device; a spraying device is installed in the inside of the treatment tank; wherein the gas is purified by the purification device, the sealing device ensures that the purification device does not leak when working, and the spraying device can pretreat the gas; the purification device comprises a connecting pipe, the connecting pipe is communicated with the top of the treatment tank; a purification box is fixedly connected to the outer wall of the treatment tank, and the top is communicated with one end of the connecting pipe away from the treatment tank; a valve is installed at the bottom of the purification box; a mounting plate is fixedly connected to the inner wall of the purification box; a mesh plate is embedded in the inner wall of the mounting plate; activated carbon is laid on the top of the mesh plate; wherein the activated carbon purifies the gas by the cooperation of the connecting pipe and the purification box, the cooperation of the mounting plate and the mesh plate makes the activated carbon convenient to replace, and the valve discharges the purified gas.

[0007] Preferably, the sealing device comprises a sealing plate, the sealing plate is rotatably connected to the outer wall of the purification box through a pin shaft; a clamping block is abutted to the outer wall of the sealing plate; a threaded rod is threadedly connected to the inner wall of the clamping block; a fixed shell is connected to the outer wall of the clamping block and is fixedly connected to the top of the purification box, and the inner wall is rotatably connected to the outer wall of the threaded rod through a sealing bearing; wherein the sealing plate is abutted to the outer wall of the purification box through the cooperation of the threaded rod and the clamping block, and the clamping block is limited by the fixed shell.

[0008] Preferably, the spraying device comprises a circulating pump, the circulating pump is fixedly connected to the top of the base; a spray pipe is communicated to the output end of the circulating pump and penetrates the treatment tank away from the circulating pump; a spray head is installed on the side of the spray pipe extending into the treatment tank; a filtering device is installed between the circulating pump and the treatment tank; wherein the spray head sprays the dilution liquid out through the cooperation of the circulating pump and the spray pipe, and the filtering device removes impurities in the dilution liquid.

[0009] Preferably, the filtering device comprises a mounting box, the mounting box is communicated to the bottom of the treatment tank and is fixedly connected to the top of the base, and the outer wall is communicated to the input end of the circulating pump; a filter screen is inserted into the inner wall of the mounting box; wherein the dilution liquid in the treatment tank is filtered through the cooperation of the mounting box and the filter screen.

[0010] Beneficial effects

[0011] The utility model provides a kind of acrylic resin production waste gas treatment device.It has the following beneficial effects: the acrylic resin production waste gas treatment device is cooperated by connecting pipe, purification box and valve, when waste gas enters treatment tank, gas will be diluted under the action of spraying device, and the gas after dilution will enter into purification box through connecting pipe, and gas will be completely absorbed by harmful gas in gas through multilayer activated carbon, and is discharged through valve, and activated carbon is laid, and it is convenient to replace when.

[0012] Through the cooperation of circulating pump, spray pipe and spray head, dilution liquid is placed in the inside of treatment tank, after gas enters treatment tank, dilution liquid in treatment tank is pumped out using circulating pump, and is transported to the inside of treatment tank by spray pipe, then is sprayed by spray head, gas and dilution liquid contact, so that harmful gas content in gas is reduced, and gas is discharged from the valve at the bottom of purification box after passing through activated carbon. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is structure schematic view of the utility model;

[0014] Figure 2 It is appearance schematic view of the utility model;

[0015] Figure 3 It is Figure 1 It is structure schematic view of treatment tank, mounting box and filter screen.

[0016] Figure 4 For Figure 1 The structure diagram of the purification box, the mounting plate and the mesh plate.

[0017] In the figure: 1, processing tank; 11, air inlet pipe; 12, base; 13, baffle; 2, purification device; 21, connecting pipe; 22, purification box; 23, valve; 24, mounting plate; 25, mesh plate; 26, activated carbon; 3, sealing device; 31, sealing plate; 32, clamping block; 33, threaded rod; 34, fixed shell; 4, spraying device; 41, circulating pump; 42, spray pipe; 43, spray head; 44, filtering device; 441, mounting box; 442, filter screen. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] In actual use, since a large amount of waste gas is generated in the production process of acrylic resin, the purification effect of the filter element is reduced after long-time work of the purification device, so that the filter element needs to be frequently replaced, which causes inconvenience to the workers in actual use.

[0020] Therefore, the present application provides an acrylic resin production waste gas treatment device, which solves the problem that in actual use, since a large amount of waste gas is generated in the production process of acrylic resin, the purification effect of the filter element is reduced after long-time work of the purification device, so that the filter element needs to be frequently replaced, which causes inconvenience to the workers in actual use.

[0021] Through the personnel in the art, the parts in the case are connected in turn, and the specific connection and operation sequence should be referred to the following working principle, and the detailed connection means is the public technical knowledge in the art, and the following mainly introduces the working principle and process.

[0022] Embodiment one: by Figures 1-4It can be known that the acrylic resin production waste gas treatment device comprises a treatment tank 1, an air inlet pipe 11 is arranged in the treatment tank 1, a base 12 is fixedly connected to the bottom of the treatment tank 1, a baffle 13 is arranged on the top of the air inlet pipe 11, the acrylic resin production waste gas treatment device further comprises a purification device 2, a sealing device 3 and a spraying device 4, the purification device 2 is arranged on one side of the outer wall of the treatment tank 1, the sealing device 3 is arranged on the outer wall of the purification device 2, and the spraying device 4 is arranged in the treatment tank 1; wherein the gas is purified through the purification device 2, the sealing device 3 ensures that the purification device 2 does not leak during work, and the spraying device 4 can pretreat the gas; the purification device 2 comprises a connecting pipe 21, a purification box 22, a valve 23, a mounting plate 24, a mesh plate 25 and activated carbon 26, the connecting pipe 21 is communicated with the top of the treatment tank 1, the purification box 22 is fixedly connected to the outer wall of the treatment tank 1 and is communicated with one end, away from the treatment tank 1, of the connecting pipe 21, the valve 23 is arranged on the bottom of the purification box 22, the mounting plate 24 is fixedly connected to the inner wall of the purification box 22, the mesh plate 25 is embedded in the inner wall of the mounting plate 24, and the activated carbon 26 is arranged on the top of the mesh plate 25; wherein the activated carbon 26 purifies the gas through cooperation of the connecting pipe 21 and the purification box 22, the activated carbon 26 is convenient to replace through cooperation of the mounting plate 24 and the mesh plate 25, and the purified gas is discharged through the valve 23, wherein the type of the valve 23 is not limited and can meet actual use conditions;

[0023] In the specific implementation process, it is worth pointing out that the inside of the treatment tank 1 contains an absorbent, the dichloromethane in the gas is absorbed by the absorbent containing alcohol and ketone, the content of harmful gas in the gas is reduced, the gas outlet of the air inlet pipe 11 is higher than the surface of the liquid, the liquid is prevented from entering the air inlet pipe 11, the baffle 13 is arranged above, the sprayed absorbent is prevented from entering the air inlet pipe 11, the absorbent is sprayed to the upper part of the treatment tank 1 through the spraying device 4, the gas is fully absorbed by the absorbent, the purified gas is treated again by the purification device 2, the remaining benzene and other substances in the gas are removed, the gas is prevented from polluting the environment when being discharged, the diluted gas enters the inside of the purification box 22 through the connecting pipe 21, a plurality of mounting plates 24 are fixedly connected in the inside of the purification box 22, the mesh plates 25 are fixedly connected to the inner walls of the mounting plates 24, the activated carbon 26 is evenly arranged on the top of the mesh plates 25 and has a thickness determined according to actual conditions, the gas fully contacts the activated carbon 26 after entering the purification box 22, the harmful gas in the waste gas is removed, and the purified gas is discharged through the valve 23, so that the purified gas is cleaner;

[0024] Further, the sealing device 3 comprises a sealing plate 31, a clamping block 32, a threaded rod 33 and a fixing shell 34, the sealing plate 31 is rotationally connected to the outer wall of the purification tank 22 through a pin shaft; the clamping block 32 is abutted to the outer wall of the sealing plate 31; the threaded rod 33 is threadedly connected to the inner wall of the clamping block 32; the fixing shell 34 is sleeved to the outer wall of the clamping block 32 and is fixedly connected to the top of the purification tank 22, and the inner wall is rotationally connected to the outer wall of the threaded rod 33 through a sealing bearing; wherein, through the cooperation of the threaded rod 33 and the clamping block 32, the sealing plate 31 is abutted to the outer wall of the purification tank 22, and the fixing shell 34 limits the clamping block 32;

[0025] In the specific implementation process, it is particularly worth pointing out that the sealing gasket is arranged on the side close to the purification tank 22 of the sealing plate 31, when the sealing plate 31 contacts the purification tank 22, the sealing gasket is extruded, and the inner wall of the clamping block 32 is provided with threads corresponding to the outer wall of the threaded rod 33, when the threaded rod 33 rotates, the clamping block 32 moves to one side of the purification tank 22, so that the clamping block 32 is abutted to the outer wall of the sealing plate 31 to fix the sealing plate 31, which not only has good sealing effect, but also is more convenient to replace the activated carbon 26;

[0026] Specifically, when the acrylic resin production waste gas treatment device is used, the adsorbent is placed in the inside of the treatment tank 1 when the treatment device is used, and the gas inlet pipe 11 is connected to the waste gas collecting device, so that the waste gas enters the inside of the treatment tank 1, and under the action of the spraying device 4, the adsorbent is sprayed from the top of the inside of the treatment tank 1 and fully contacts with the gas, so that the harmful gas content in the gas is reduced, the diluted gas enters the purification tank 22 through the connecting pipe 21, and after being absorbed by the activated carbon 26, it is discharged from the purification tank 22 through the valve 23, and after the adsorption effect of the activated carbon 26 is reduced, the threaded rod 33 is rotated to separate the clamping block 32 from the sealing plate 31, the sealing plate 31 is opened, and the activated carbon 26 is replaced, after the replacement is completed, the sealing plate 31 is closed, and the threaded rod 33 is reversely rotated to make the clamping block 32 abut to the outer wall of the sealing plate 31, so as to seal the purification tank 22.

[0027] Example two: from Figures 1-4 It can be seen that the spraying device 4 comprises a circulating pump 41, a spray pipe 42, a spray head 43 and a filtering device 44, the circulating pump 41 is fixedly connected to the top of the base 12; the spray pipe 42 is communicated to the output end of the circulating pump 41 and penetrates the treatment tank 1 away from the circulating pump 41; the spray head 43 is installed on the side of the spray pipe 42 extending into the treatment tank 1; the filtering device 44 is installed between the circulating pump 41 and the treatment tank 1; wherein, through the cooperation of the circulating pump 41 and the spray pipe 42, the spray head 43 sprays the dilution liquid, and the filtering device 44 removes the impurities in the dilution liquid, wherein the model of the circulating pump 41 is not limited and can meet the actual use condition;

[0028] In the implementation process, it is worth pointing out that the spray pipe 42 is annularly placed inside the treatment tank 1, and the spray head 43 is provided with a plurality of spray heads which are uniformly distributed on the outer wall of the spray pipe 42. Under the driving of the circulating pump 41, the adsorbent at the bottom of the treatment tank 1 is made to enter the treatment tank 1 through the spray pipe 42 and then sprayed out through the spray head 43, so that the adsorbent is fully contacted with the waste gas, and the harmful gas content in the waste gas can be quickly reduced.

[0029] Further, the filtering device 44 comprises a mounting box 441 and a filter screen 442. The mounting box 441 is communicated with the bottom of the treatment tank 1 and fixedly connected to the top of the base 12, and the outer wall is communicated with the input end of the circulating pump 41. The filter screen 442 is inserted into the inner wall of the mounting box 441. Through the cooperation of the mounting box 441 and the filter screen 442, the diluent in the treatment tank 1 is filtered.

[0030] In the implementation process, it is worth pointing out that the filter screen 442 is cylindrically placed and provided with double layers, so that the impurities in the adsorbent can be better removed, and the damage of the circulating pump 41 caused by the impurities can be avoided.

[0031] Specifically, on the basis of the above embodiment, when the treatment device is used, the air inlet pipe 11 is connected to the top of the acrylic resin production device, the waste gas is collected and enters the treatment tank 1, under the driving of the spraying device 4, the harmful gas content in the gas is reduced, and then enters the purification box 22 through the connecting pipe 21. Under the action of the activated carbon 26, the harmful gas in the gas is removed and discharged, so as to avoid pollution to the environment.

[0032] Although the embodiments of the present application have been shown and described, it can 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. An acrylic resin production off-gas treatment device comprising a treatment tank (1), characterized by: The inside of the processing tank (1) is provided with an air inlet pipe (11), the bottom of the processing tank (1) is fixedly connected with a base (12), the top of the air inlet pipe (11) is provided with a baffle (13), and the acrylic resin production exhaust gas treatment device further comprises: A purification device (2) is arranged on one side of the outer wall of the processing tank (1); A sealing device (3) is arranged on the outer wall of the purification device (2); A spraying device (4) is arranged in the processing tank (1); The purification device (2) purifies the gas, the sealing device (3) ensures that the purification device (2) does not leak during operation, and the spraying device (4) can pretreat the gas; The purification device (2) comprises: A connecting pipe (21) is connected to the top of the processing tank (1); A purification box (22) is fixedly connected to the outer wall of the processing tank (1) and is connected to one end of the connecting pipe (21) away from the processing tank (1); A valve (23) is arranged at the bottom of the purification box (22); An installation plate (24) is fixedly connected to the inner wall of the purification box (22); A mesh plate (25) is embedded in the inner wall of the installation plate (24); Activated carbon (26) is laid on the top of the mesh plate (25); The activated carbon (26) purifies the gas through cooperation of the connecting pipe (21) and the purification box (22), the activated carbon (26) is convenient to replace through cooperation of the installation plate (24) and the mesh plate (25), and the valve (23) discharges the purified gas; The spraying device (4) comprises: A circulating pump (41) is fixedly connected to the top of the base (12); A spray pipe (42) is connected to the output end of the circulating pump (41) and penetrates the processing tank (1) away from the circulating pump (41); A spray head (43) is arranged on the side of the spray pipe (42) extending into the processing tank (1); A filtering device (44) is arranged between the circulating pump (41) and the processing tank (1); The spray head (43) sprays dilution liquid through cooperation of the circulating pump (41) and the spray pipe (42), and the filtering device (44) removes impurities in the dilution liquid; The filtering device (44) comprises: An installation box (441) is connected to the bottom of the processing tank (1), is fixedly connected to the top of the base (12), and is connected to the input end of the circulating pump (41) through the outer wall; A filter screen (442) is inserted into the inner wall of the installation box (441); The dilution liquid in the processing tank (1) is filtered through cooperation of the installation box (441) and the filter screen (442).

2. The acrylic resin production exhaust gas treatment device according to claim 1, characterized by: The sealing device (3) comprises: A sealing plate (31) is rotatably connected to the outer wall of the purification box (22) through a pin shaft; A clamping block (32) abuts against the outer wall of the sealing plate (31); A threaded rod (33) is threadedly connected to the inner wall of the clamping block (32); A fixed shell (34) is sleeved on the outer wall of the clamping block (32) and is fixedly connected to the top of the purification box (22), and the inner wall is rotatably connected to the outer wall of the threaded rod (33) through a sealing bearing; The sealing plate (31) is abutted against the outer wall of the purification box (22) through cooperation of the threaded rod (33) and the clamping block (32), and the fixed shell (34) limits the clamping block (32).

Images