CN220276502U - Phthalic anhydride slice tail gas pretreatment device - Google Patents
Phthalic anhydride slice tail gas pretreatment device Download PDFInfo
- Publication number
- CN220276502U CN220276502U CN202321697706.9U CN202321697706U CN220276502U CN 220276502 U CN220276502 U CN 220276502U CN 202321697706 U CN202321697706 U CN 202321697706U CN 220276502 U CN220276502 U CN 220276502U
- Authority
- CN
- China
- Prior art keywords
- air
- tail gas
- gravity sedimentation
- phthalic anhydride
- gravity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 title claims abstract description 14
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000005484 gravity Effects 0.000 claims abstract description 44
- 238000004062 sedimentation Methods 0.000 claims abstract description 29
- 239000000428 dust Substances 0.000 claims abstract description 26
- 238000005192 partition Methods 0.000 claims description 9
- 239000000110 cooling liquid Substances 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- -1 cyclic anhydride Chemical class 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model relates to a phthalic anhydride slice tail gas pretreatment device which comprises a plurality of slicing machines, a plurality of gravity sedimentation equipment and pulse dust collectors, wherein the number of the gravity sedimentation equipment corresponds to that of the slicing machines, a plurality of air inlets are arranged on the slicing machines, an air inlet and an air outlet are arranged at the top of the gravity sedimentation equipment, the air inlets on each slicing machine are communicated with the air inlets of the corresponding gravity sedimentation equipment through branch pipes, and the air outlets of each gravity sedimentation equipment are communicated with the pulse dust collectors through a main pipe. A baffle plate which is vertically arranged in the middle of the interior of the gravity sedimentation device is provided with a plurality of air holes. And the gravity sedimentation equipment is arranged between each slicer and the pulse dust collector, so that the workload of the pulse dust collector is greatly reduced, the main pipe is not blocked, the discharge amount of particulate matters is reduced, the environment is optimized, and the occupational hazard is reduced.
Description
Technical Field
The utility model relates to the technical field of tail gas treatment, in particular to a phthalic anhydride slice tail gas pretreatment device.
Background
Phthalic anhydride is cyclic anhydride formed by intramolecular dehydration of phthalic acid, and is white solid, and is an important raw material in chemical industry. The existing tail gas treatment device generally adopts a plurality of parallel slicing machines and a middle tank, wherein each slicing machine is provided with a rotary drum, particle dust overflows from the two sides of the rotary drum and a discharge hole, each slicing machine is connected with three air suction ports to a main pipe, and the main pipe is directly connected with a pulse dust collector. The main pipe is often blocked, and then the branch pipes are blocked in sequence, although a plurality of pipeline blockage clearing windows are additionally arranged, the workload is large, and a plurality of slicing machines are required to stop working every time of blockage clearing, so that normal production is seriously affected.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a phthalic anhydride slice tail gas pretreatment device which solves the problems in the background art.
In order to solve the technical problems, the phthalic anhydride slice tail gas pretreatment device comprises a plurality of slicing machines, a plurality of gravity settling devices and pulse dust collectors, wherein the number of the gravity settling devices corresponds to that of the slicing machines, a plurality of air inlets are arranged on the slicing machines, an air inlet and an air outlet are arranged at the top of each gravity settling device, the air inlets on each slicing machine are communicated with the air inlets of the corresponding gravity settling devices through branch pipes, and the air outlets of each gravity settling device are communicated with the pulse dust collectors through a main pipe; the gravity sedimentation device is characterized in that a vertically placed partition plate is arranged in the middle of the interior of the gravity sedimentation device, a plurality of air holes are formed in the partition plate, upper baffles are symmetrically arranged on two side faces of the partition plate, lower baffles are symmetrically arranged on the inner wall of the gravity sedimentation device, and the upper baffles and the lower baffles are obliquely arranged.
As an improvement of the utility model, the slicing machine is provided with a cooling liquid inlet and a cooling liquid outlet.
As an improvement of the utility model, the air suction inlet is provided with three air suction inlets.
As an improvement of the gravity sedimentation device, two baffle plates are symmetrically arranged on the inner top wall of the gravity sedimentation device along the partition plate, and each baffle plate is positioned between the air inlet and the air outlet.
As an improvement of the utility model, a quick-opening inspection hole is arranged at the bottom of one side of the gravity sedimentation equipment.
Compared with the prior art, the utility model has the advantages that 1) the gravity sedimentation equipment is arranged between each slicer and the pulse dust collector, thereby greatly reducing the workload of the pulse dust collector, avoiding the blockage of a main pipe, reducing the discharge amount of particulate matters, optimizing the environment and reducing the occupational hazard; 2) If the branch pipes are blocked, the blockage can be cleared one by one, and the work of other slicing machines is not influenced; 3) The baffle plates are arranged, so that the flow speed of the tail gas can be reduced, the flow time and the distance of the tail gas in the gravity settling equipment can be prolonged, and the dust settling effect can be improved; 4) The upper baffle plate and the lower baffle plate which are staggered and inclined downwards are arranged, so that solids in the tail gas can fall conveniently, and meanwhile, dust deposited at the bottom can be prevented from being directly blown to the gas, and the dust is raised; 5) And returning the dust settled and collected by the gravity settling equipment to a production system for recycling, so that the yield is improved.
Drawings
FIG. 1 is a schematic structural view of a phthalic anhydride slice tail gas pretreatment device according to the present utility model;
in the figure: 1. a slicer; 2. a gravity settling device; 3. a pulse dust collector; 4. an air suction port; 5. an air inlet; 6. an air outlet; 7. a branch pipe; 8. a header pipe; 9. a cooling liquid inlet; 10. a cooling liquid outlet; 11. a partition plate; 12. an upper baffle; 13. a lower baffle; 14. quick opening of the inspection hole; 15. a baffle plate; .
Detailed Description
In order to enhance the understanding of the present utility model, the present embodiment will be described in detail with reference to the accompanying drawings.
Example 1: referring to fig. 1, a phthalic anhydride slice tail gas pretreatment device comprises a plurality of slicing machines 1, a plurality of gravity sedimentation devices 2 and a pulse dust collector 3, wherein the number of the gravity sedimentation devices 2 corresponds to that of the slicing machines 1, three air suction inlets 4 are formed in the slicing machines 1 and are respectively arranged at the two sides of a rotary drum and at the discharge outlet of the slicing machines 1, and a cooling liquid inlet 9 and a cooling liquid outlet 10 are formed in the slicing machines 1. The top of the gravity sedimentation equipment 2 is provided with an air inlet 5 and an air outlet 6, the air suction inlet 4 on each slicing machine 1 is communicated with the air inlet 5 of the corresponding gravity sedimentation equipment 2 through a branch pipe 7, the air outlet 6 of each gravity sedimentation equipment 2 is communicated with the pulse dust collector 3 through a main pipe 8, and a quick-opening inspection hole 14 is formed in the bottom of one side of the gravity sedimentation equipment 2, so that the collected solid dust can be cleaned in time.
The solid dust is cleaned once through the quick-opening inspection hole every day during daily operation, so that the workload of gravity sedimentation equipment is reduced, the workload of the pulse dust collector is greatly reduced, the main pipe is not blocked, the discharge amount of particulate matters is reduced, the environment is optimized, and the occupational hazard is reduced. And if the branch pipes are blocked, the blockage can be cleared one by one, and the work of other slicing machines is not influenced.
The baffle 11 that vertically placed is equipped with in the middle of the gravity sedimentation equipment 2 inside, is equipped with a plurality of bleeder vents on the baffle 11, is equipped with two baffles 15 along baffle 11 symmetry on the interior roof of gravity sedimentation equipment 2, and every baffle 15 all is located between air inlet 5 and the gas outlet 6, through setting up a plurality of baffles 5, reduces the speed that the tail gas circulated, prolongs the flow time and the distance of tail gas in gravity sedimentation equipment 2, improves the effect that the dust subsided. The upper baffle plates 12 are symmetrically arranged on two side surfaces of the baffle plate 11, the lower baffle plates 13 are symmetrically arranged on the opposite inner walls of the gravity sedimentation equipment 2, the upper baffle plates 12 and the lower baffle plates 13 are obliquely arranged downwards, so that solids in tail gas can fall down conveniently, dust deposited at the bottom can be prevented from being directly blown to the bottom, the dust is raised, the distance between the upper baffle plates 12 and the lower baffle plates 13 is proper, and a framework is prevented from being formed. And returning the dust settled and collected by the gravity settling equipment to a production system for recycling, so that the yield is improved.
Finally, it should be noted that: the technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (5)
1. The utility model provides a phthalic anhydride section tail gas preprocessing device which characterized in that: the device comprises a plurality of slicing machines, a plurality of gravity settling devices and pulse dust collectors, wherein the number of the gravity settling devices corresponds to that of the slicing machines, a plurality of air inlets are formed in the slicing machines, an air inlet and an air outlet are formed in the tops of the gravity settling devices, the air inlets on each slicing machine are communicated with the air inlets of the corresponding gravity settling devices through branch pipes, and the air outlets of each gravity settling device are communicated with the pulse dust collectors through a main pipe; the gravity sedimentation device is characterized in that a vertically placed partition plate is arranged in the middle of the interior of the gravity sedimentation device, a plurality of air holes are formed in the partition plate, upper baffles are symmetrically arranged on two side faces of the partition plate, lower baffles are symmetrically arranged on the inner wall of the gravity sedimentation device, and the upper baffles and the lower baffles are obliquely arranged.
2. The phthalic anhydride slice tail gas pretreatment device according to claim 1, wherein: and the slicing machine is provided with a cooling liquid inlet and a cooling liquid outlet.
3. The phthalic anhydride slice tail gas pretreatment device according to claim 1, wherein: the air suction openings are three.
4. The phthalic anhydride slice tail gas pretreatment device according to claim 1, wherein: two baffle plates are symmetrically arranged on the inner top wall of the gravity settling device along the partition plate, and each baffle plate is positioned between the air inlet and the air outlet.
5. The phthalic anhydride slice tail gas pretreatment device according to claim 1, wherein: and a quick-opening inspection hole is formed in the bottom of one side of the gravity sedimentation device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321465945 | 2023-06-09 | ||
| CN2023214659451 | 2023-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220276502U true CN220276502U (en) | 2024-01-02 |
Family
ID=89338886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321697706.9U Active CN220276502U (en) | 2023-06-09 | 2023-06-30 | Phthalic anhydride slice tail gas pretreatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220276502U (en) |
-
2023
- 2023-06-30 CN CN202321697706.9U patent/CN220276502U/en active Active
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