CN213942631U - Environment-friendly low molecular weight polyethylene production tail gas processing apparatus - Google Patents
Environment-friendly low molecular weight polyethylene production tail gas processing apparatus Download PDFInfo
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- CN213942631U CN213942631U CN202022866450.2U CN202022866450U CN213942631U CN 213942631 U CN213942631 U CN 213942631U CN 202022866450 U CN202022866450 U CN 202022866450U CN 213942631 U CN213942631 U CN 213942631U
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Abstract
The utility model discloses an environment-friendly polyethylene wax production tail gas treatment device, which comprises a spraying device, a liquid supplementing box and a liquid storage box; the spraying device comprises a shell, a spraying main pipe, spraying branch pipes and a guide plate; a liquid outlet which can be inserted into the liquid storage tank is arranged at the lowest point of the shell; the lower part of the shell is provided with an air inlet, and the upper part of the shell is provided with an air outlet; the spraying main pipe is fixed at the top of the shell and is communicated with the spraying branch pipe; the spraying branch pipe is provided with a plurality of spraying heads; both sides of the shell are provided with guide plates which incline downwards, and a channel which can lead the gas to flow is arranged between the lowest end of each guide plate and the inner wall of the shell on the opposite side; the liquid supplementing box is connected with the spraying main pipe; the treatment liquid in the shell enables the tail gas entering the shell through the air inlet to be in full contact with the treatment liquid, so that the tail gas is sequentially absorbed; then the gas rises and is sprayed and cleaned again under the action of the spraying branch pipe, and finally is discharged from the exhaust port, and the treatment effect of the tail gas can be ensured by two times of absorption.
Description
Technical Field
The utility model relates to a production technical field of low molecular weight polyethylene especially relates to a low molecular weight polyethylene production tail gas processing apparatus of environment-friendly.
Background
Polyethylene wax (PE wax), also called polymer wax for short polyethylene wax. The wax can be used as an additive in the normal production and can be directly added into the polyolefin processing, the gloss and the processing performance of the product can be improved, the wax can be used as a lubricant, the chemical property is stable, the electrical performance is good, the polyethylene wax has good phase solubility with polyethylene, polypropylene, polyethylene cerotic acid, ethylene propylene rubber and butyl rubber, and the fluidity of polyethylene, polypropylene and ABS and the mold release performance of polymethyl methacrylate and polycarbonate can be improved.
At present, in the production process of polyethylene wax, the generated tail gas is widely treated by a top-down tail gas, the efficiency of treating the tail gas with dust and harmful gases from top to bottom is low, the structure is complex, the tail gas is not thoroughly treated, toxic and harmful gases and dust in the tail gas are discharged into the atmosphere again, and the environment is seriously polluted and the human health is harmed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves is: the tail gas treatment device for the production of the environment-friendly polyethylene wax is provided, and the tail gas treatment effect is good.
In order to solve the main technical problems, the following technical scheme is adopted:
an environment-friendly polyethylene wax production tail gas treatment device comprises a spraying device, a liquid supplementing box and a liquid storage box; the liquid supplementing box is internally stored with a treating liquid capable of absorbing toxic gas in tail gas; the liquid storage tank is positioned below the spraying device; the spraying device comprises a shell, and a main spraying pipe, a branch spraying pipe and a guide plate which are positioned in the shell; the bottom of the shell is a conical section, and the lowest point of the shell is provided with a liquid outlet which can be inserted into the liquid storage tank; an air inlet is formed in the lower part of the shell close to the top surface of the conical section, and an air outlet is formed in the upper part of the shell; the spraying main pipe is fixed at the top of the shell and is communicated with the spraying branch pipe; the spraying branch pipe is fixed on the inner wall of the shell and is provided with a plurality of spraying heads; both sides of the shell are provided with guide plates which incline downwards, and a channel which can lead the gas to flow is arranged between the lowest end of each guide plate and the inner wall of the shell on the opposite side; the liquid supplementing box is connected with the spraying main pipe through a pipeline and an infusion pump; a control valve is arranged on a pipeline of the liquid outlet; a treatment liquid for submerging the lowest end of the air inlet is reserved at the bottom of the shell; and the lower part of the shell is provided with a liquid level sensor which is used for detecting the liquid level at the bottom of the shell and controlling the opening of the control valve.
Preferably, the air inlet is inclined downwardly and communicates with the discharge port of the compressor.
Preferably, the liquid storage tank comprises a liquid storage tank and a filter element body capable of filtering particulate matters; the filter element body is detachably fixed at the top of the liquid storage tank; and a liquid discharge pipeline of the liquid storage tank penetrates through the liquid storage tank.
Preferably, baffles are arranged around the filter element body, and form a groove structure with the filter element body; the liquid outlet is inserted into the groove structure.
Preferably, one side of the liquid storage tank is provided with a tank door capable of being opened; the baffle is transparent; the top of chamber door is provided with can observe filter screen perspective window.
Preferably, a treatment liquid purifying device is arranged between the liquid storage tank and the liquid supplementing tank.
Compared with the prior art, the utility model discloses be applied to environment-friendly low molecular weight polyethylene production tail gas treatment utensil and possess following advantage:
(1) the treatment liquid in the shell enables the tail gas entering the shell through the air inlet to be in full contact with the treatment liquid, so that toxic and harmful components are absorbed; then the gas rises and is sprayed and cleaned again under the action of the spraying branch pipe, and finally is discharged from the exhaust port, and the treatment effect of the tail gas can be ensured by two times of absorption.
(2) Both sides of the shell are provided with guide plates which incline downwards, and a channel which can lead the gas to flow is arranged between the lowest end of each guide plate and the inner wall of the shell on the opposite side; the guide plates positioned on two sides of the shell are arranged in a vertically crossed manner, so that a channel for enabling gas to flow along a broken line is formed, the contact time of rising air flow and sprayed treatment liquid is prolonged, and the treatment effect of tail gas is further ensured.
(3) A filter element body and a liquid storage tank are arranged in the liquid storage tank, the filter element body can filter particles, and the filter element body is detachably placed at the top of the liquid storage tank; one side of liquid reserve tank is provided with the chamber door, can in time clear up and change the filter core.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.
FIG. 1 is a schematic overall structure diagram according to a first embodiment;
fig. 2 is a schematic exterior structure view of a liquid storage tank according to the first embodiment;
fig. 3 is a schematic overall structure diagram of the second embodiment.
In the figure: the device comprises a liquid supplementing box 1, a liquid storage box 2, a box door 21, a perspective window 22, a filter element body 23, a baffle 24, a liquid storage tank 25, a spraying device 3, a shell 31, a main spraying pipe 32, a branch spraying pipe 33, a spraying head 331, a guide plate 34, an air inlet 35, an air outlet 36, a liquid outlet 37, a control valve 4, a liquid level sensor 5, a treatment liquid purifying device 6, a compressor 7 and an infusion pump 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions.
The first embodiment,
Referring to fig. 1-2, an apparatus for treating tail gas from polyethylene wax production comprises a spraying device 3, a fluid infusion tank 1, and a fluid storage tank 2, wherein the fluid infusion tank 1 stores a treating fluid capable of absorbing toxic gases in tail gas.
The spraying device 3 comprises a shell 31, a spraying main pipe 32, a spraying branch pipe 33 and a guide plate 34; the main spray pipe 32, the branch spray pipes 33 and the guide plate 34 are all positioned in the shell 31; the bottom of the shell 31 is a conical section, and the rest parts are cylindrical; the lowest point of the cylindrical section of the shell 31 is provided with a liquid outlet 37; the liquid storage tank 2 is positioned below the shell 31; the liquid outlet 37 can be inserted into the liquid storage tank 2; an air inlet 35 is arranged at the lower part of the shell 31 close to the top surface of the conical section, and an air outlet 36 is arranged at the upper part of the shell; the air inlet 35 is inclined downwards and is communicated with an exhaust port 36 of the compressor 7 for conveying tail gas; the main spray pipe 32 is fixed on the top of the shell 31 and is communicated with the two branch spray pipes 33; the two spray branch pipes 33 are inserted into the spray main pipe 32; the spraying main pipe 32 is connected with the fluid infusion tank 1 through a pipeline and an infusion pump 8; a plurality of spray branch pipes 33 are fixed on the inner wall of the shell 31, and each spray branch pipe 33 is provided with a plurality of spray heads 331; the shower head 331 faces the middle of the housing 31, and the shower head 331 can spray the treatment liquid into mist; guide plates 34 which are inclined downwards are arranged on two sides of the shell 31, and a channel which can enable air to flow is arranged between the lowest end of each guide plate 34 and the inner wall of the shell 31 on the opposite side; the guide plates 34 located at both sides of the housing 31 are arranged to cross up and down, thereby forming a passage for flowing the gas in a zigzag line.
A control valve 4 is arranged on a pipeline between the liquid outlet 37 and the liquid storage tank 2; the lower part of the shell 31 is provided with a liquid level sensor 5 for detecting the liquid level at the bottom of the shell 31 and controlling the opening degree of the control valve 4, and the bottom of the shell 31 is always provided with treatment liquid which can just submerge the lowest end of the air inlet 35; the liquid level of the treatment liquid in the shell 31 does not exceed the plane of the highest point of the air inlet 35, and the treatment liquid in the shell 31 enables the tail gas entering the shell 31 through the air inlet 35 to be in full contact with the treatment liquid, so that toxic and harmful components are absorbed; then the gas rises and is sprayed and cleaned again under the action of the spraying branch pipe 33, and finally is discharged from the exhaust port 36, and the treatment effect of the tail gas can be ensured through two times of absorption.
The liquid storage tank 2 comprises a liquid storage tank 25 and a filter element body 23 capable of filtering particulate matters; the filter element body 23 is detachably fixed on the top of the liquid storage tank 25, and the filter element body 23 is framed inside by the filter frame body and is placed on the top surface of the liquid storage tank 25; a liquid discharge pipeline of the liquid storage tank 25 penetrates through the liquid storage tank 2; the filter element 23 can retain dust and particulate matters on the upper surface of the filter element 23 or in the filter element 23, and can make liquid flow into the liquid storage tank 25; the reservoir 25 is used for temporarily storing the treatment liquid having absorbed the off-gas.
Example II,
Referring to fig. 3, the difference between the second embodiment and the first embodiment is that, on the basis of keeping the first embodiment, a treatment solution purification device 6 is disposed between the liquid storage tank 2 and the liquid replenishing tank 1, and the treatment solution after treatment is filtered and purified by the treatment purification device, so as to be sent to the liquid replenishing tank 1 through a conveying device, so as to realize the recycling of the treatment solution.
The utility model discloses a working process does: in the first embodiment, in use, the compressor 7 sends tail gas generated in polyethylene wax production to the gas inlet 35; the tail gas enters the shell 31 and is firstly contacted and absorbed with the treatment liquid in the shell 31 for the first time, then the gas rises along a broken line flow channel formed by the guide plate 34, in the process, the vaporous treatment liquid sprayed by the spray header 331 is contacted and purified with the tail gas for the second time, and finally the treated gas is discharged out of the shell 31 through the exhaust port 36; the treating fluid after the secondary contact with the tail gas flows to the bottom of the shell 31 along the guide plate 34; the bottom of the shell 31 discharges the treatment liquid exceeding the set value to the liquid storage tank 2 according to the indication number of the liquid level sensor 5, and the liquid flowing to the liquid storage tank 2 is filtered by the filter element 23 and then sent to the liquid storage tank 25.
In the second embodiment, in the operation process of the first embodiment, the liquid in the liquid storage tank 25 is sent to the treatment liquid purification device 6 through a pipeline to purify the treatment liquid, and then sent to the liquid replenishing tank 1 through the conveying device to be recycled.
It should be noted that, in the present invention, "upper, lower, left, right, inner and outer" are defined based on the relative position of the components in the drawings, and are only for the clarity and convenience of describing the technical solution, it should be understood that the application of the directional terms does not limit the protection scope of the present application.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or some of the technical features may be substituted by equivalent substitutions, modifications and the like, all of which are within the spirit and principle of the present invention.
Claims (6)
1. The utility model provides an environment-friendly polyethylene wax production tail gas processing apparatus which characterized in that: comprises a spraying device (3), a liquid supplementing box (1) and a liquid storage box (2); the liquid supplementing box (1) is internally stored with a treatment liquid capable of absorbing toxic gas in tail gas; the liquid storage tank (2) is positioned below the spraying device (3); the spraying device (3) comprises a shell (31), a spraying main pipe (32), a spraying branch pipe (33) and a guide plate (34) which are positioned in the shell (31); the bottom of the shell (31) is a conical section, and the lowest point of the shell is provided with a liquid outlet (37) which can be inserted into the liquid storage tank (2); an air inlet (35) is formed in the lower part of the shell (31) close to the top surface of the conical section, and an air outlet (36) is formed in the upper part of the shell; the spraying main pipe (32) is fixed at the top of the shell (31) and is communicated with the spraying branch pipe (33); the spraying branch pipe (33) is fixed on the inner wall of the shell (31) and is provided with a plurality of spraying heads (331); both sides of the shell (31) are provided with guide plates (34) which incline downwards, and a channel which can lead gas to flow is arranged between the lowest end of each guide plate (34) and the inner wall of the shell (31) at the opposite side; the liquid supplementing box (1) is connected with the spraying main pipe (32) through a pipeline and an infusion pump (8); a control valve (4) is arranged on a pipeline of the liquid outlet (37); the bottom of the shell (31) is provided with treatment liquid which submerges the lowest end of the air inlet (35); and a liquid level sensor (5) is arranged at the lower part of the shell (31) and used for detecting the liquid level at the bottom of the shell (31) and controlling the opening of the control valve (4).
2. The environment-friendly polyethylene wax production tail gas treatment device of claim 1, characterized in that: the air inlet (35) is inclined downwards and communicated with an air outlet (36) of the compressor (7).
3. The environment-friendly polyethylene wax production tail gas treatment device of claim 1, characterized in that: the liquid storage tank (2) comprises a liquid storage tank (25) and a filter element body (23) capable of filtering particulate matters; the filter element body (23) is detachably fixed at the top of the liquid storage tank (25); and a liquid discharge pipeline of the liquid storage tank (25) penetrates through the liquid storage tank (2).
4. The environment-friendly polyethylene wax production tail gas treatment device of claim 3, characterized in that: baffles (24) are arranged on the periphery of the filter element body (23), and form a groove structure with the filter element body (23); the liquid discharge port (37) is inserted into the groove structure.
5. The environment-friendly polyethylene wax production tail gas treatment device of claim 4, wherein: a box door (21) capable of being opened is arranged on one side of the liquid storage box (2); the baffle (24) is transparent; the top of the box door (21) is provided with a perspective window (22) capable of observing the filter screen.
6. The environment-friendly polyethylene wax production tail gas treatment device of claim 1, characterized in that: and a treatment liquid purifying device (6) is arranged between the liquid storage tank (2) and the liquid supplementing tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022866450.2U CN213942631U (en) | 2020-12-02 | 2020-12-02 | Environment-friendly low molecular weight polyethylene production tail gas processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022866450.2U CN213942631U (en) | 2020-12-02 | 2020-12-02 | Environment-friendly low molecular weight polyethylene production tail gas processing apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN213942631U true CN213942631U (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022866450.2U Active CN213942631U (en) | 2020-12-02 | 2020-12-02 | Environment-friendly low molecular weight polyethylene production tail gas processing apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN213942631U (en) |
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- 2020-12-02 CN CN202022866450.2U patent/CN213942631U/en active Active
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