CN217613912U - Chloromethane recovery unit for cellulose production - Google Patents
Chloromethane recovery unit for cellulose production Download PDFInfo
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- CN217613912U CN217613912U CN202221860544.1U CN202221860544U CN217613912U CN 217613912 U CN217613912 U CN 217613912U CN 202221860544 U CN202221860544 U CN 202221860544U CN 217613912 U CN217613912 U CN 217613912U
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- Prior art keywords
- pipe
- shell
- air inlet
- dust removal
- partition plate
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- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000011084 recovery Methods 0.000 title claims abstract description 18
- 229920002678 cellulose Polymers 0.000 title claims abstract description 17
- 239000001913 cellulose Substances 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000000428 dust Substances 0.000 claims abstract description 64
- 239000007921 spray Substances 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims description 27
- 238000005507 spraying Methods 0.000 claims description 17
- 230000002195 synergetic effect Effects 0.000 claims description 15
- 229940050176 methyl chloride Drugs 0.000 claims description 12
- 239000007788 liquid Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 238000004140 cleaning Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Separation Of Particles Using Liquids (AREA)
Abstract
The utility model relates to a chloromethane recovery unit is used in cellulose production, including the spray column, be equipped with increase device in the spray column, be equipped with heat transfer device and dust collector outside the spray column, increase device includes fixed plate and increase mechanism, increase mechanism includes first fixed pipe, the fixed pipe of second, the fixed pipe of third and blade, the fixed plate is fixed to be set up in the spray column, and is equipped with the through-hole on the fixed plate, and the blade is provided with a plurality of, and the fixed pipe box of third is established outside the fixed pipe of second, and passes through the blade is connected fixedly, the utility model discloses in set up increase device in the spray column, be convenient for break up the gas that gets into the spray column, increase its and spray the area between the liquid, improve recovery efficiency, and spray the liquid and fall into the spray column in the bottom, gas is advanced when getting into the spray column, retrieves in the spray liquid of bottom, further strengthens the recovery effect.
Description
Technical Field
The utility model relates to a recovery unit technical field specifically is a cellulose production methyl chloride recovery unit.
Background
The cellulose is produced in a gas mixed with methyl chloride, and if the methyl chloride is directly discharged into the air, the air pollution is caused, so that the methyl chloride in the gas needs to be recovered. The existing recovery device generally introduces gas into a spray tower, sprays the gas through the spray tower, mixes methyl chloride in liquid and falls to the bottom of the spray tower, and then recovers the liquid to realize the recovery of methyl chloride gas, but when the spray tower sprays, the contact time of the liquid and the gas is short, leaked methyl chloride is easily discharged, and the recovery effect is poor; in addition, the gas mixed with the chloromethane is mixed with a part of dust impurities and the like, and is mixed in the spraying liquid during spraying and recycling, and the spraying liquid is generally recycled, so the dust impurities in the liquid are easy to cause the blockage of the spraying head; meanwhile, the temperature of the gas is high when the gas enters the spray tower, and if the hot gas is directly discharged, heat is wasted.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To the problem that exists among the prior art, the utility model provides a cellulose production methyl chloride recovery unit to solve the technical problem who mentions in the background art.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cellulose production methyl chloride recovery unit, includes the spray column, be equipped with increase device in the spray column, be equipped with heat transfer device and dust collector outside the spray column, increase device includes fixed plate and increase mechanism, increase mechanism includes the fixed pipe of first fixed pipe, second, the fixed pipe of third and blade, the fixed plate is fixed to be set up in the spray column, and is equipped with the through-hole on the fixed plate, and the blade is provided with a plurality of, and the fixed pipe box of third is established outside the fixed pipe of second, and passes through the blade is connected fixedly, and the fixed pipe box of second is established outside first fixed pipe, and passes through the blade is connected fixedly, and the fixed pipe setting of third is in the through-hole, heat transfer device includes shell, heat exchange tube, first baffle and second baffle, first baffle and the fixed setting of second baffle are in the shell, and the heat exchange tube setting is between first baffle and second baffle, and both ends communicate with the outside of first baffle and second baffle respectively.
Preferably, dust collector includes dust removal box, installing frame and filter screen, and one side of dust removal box articulates and is equipped with the chamber door, filter screen and installing frame pass through bolt detachably and connect, and the inside both sides of dust removal box are provided with installing frame complex spout, are convenient for adsorb the dust in the gas.
In further preferred, be equipped with inlet tube and outlet pipe on the shell, and inlet tube and outlet pipe all set up between first baffle and second baffle, and the inlet tube setting just is close to the second baffle in the bottom of shell, and the outlet pipe setting just is close to first baffle at the top of shell, and the water of being convenient for enters into the shell and carries out the heat transfer.
Preferably in further, be equipped with first intake pipe and first outlet duct on the shell, first intake pipe sets up between shell and first baffle, and first outlet duct sets up between shell and second baffle, and the gas of being convenient for enters into the shell and carries out the heat transfer.
Preferably in further, the bottom of the dust removal box body is slidably provided with an ash receiving box, a guide cover is arranged above the ash receiving box, a second air inlet pipe is arranged on one side of the dust removal box body, a second air outlet pipe is arranged at the top of the dust removal box body, the second air inlet pipe is connected with the first air outlet pipe through a flange plate, the second air outlet pipe is communicated with the inside of the spray tower, and the second air inlet pipe is arranged between the guide cover and the filter screen, so that dust can be collected conveniently.
Preferably, a third air inlet pipe and a fourth air inlet pipe are arranged in the spray tower, the fourth air inlet pipe is arranged to be volute, an air inlet hole is formed in the fourth air inlet pipe, and two ends of the third air inlet pipe are respectively connected with the fourth air inlet pipe and the second air outlet pipe, so that the contact area of gas and liquid is increased conveniently.
Preferably, the synergistic mechanism and the through hole are respectively provided with a plurality of synergistic mechanisms, and the synergistic mechanisms are respectively arranged on the fixing plate, so that gas entering the spray tower can be conveniently scattered, and the contact area between the gas and the spray liquid is increased.
(III) advantageous effects
Compared with the prior art, the utility model provides a cellulose production methyl chloride recovery unit possesses following beneficial effect:
1. the utility model discloses in set up increase device in the spray column, be convenient for break up the gas that gets into the spray column, increase the area of contact between it and the spray liquid, improve recovery efficiency, and the spray liquid falls to the spray column at the bottom, and gas is when getting into the spray column, and the spray liquid that enters the bottom is advanced to be retrieved, further strengthens the recovery effect;
2. the utility model is provided with a dust removal device to remove dust from the gas before spraying, so as to prevent dust from mixing in the spraying liquid, which leads to the blockage of the spray head during recycling of the spraying liquid and influences the recycling effect, and the filter screen and the dust receiving box are convenient to be taken out from the dust removal box body for cleaning or replacement;
3. the utility model discloses in be equipped with heat transfer device before dust collector, be convenient for recycle the heat absorption in the gas, and prevent that high-temperature gas from causing the filter screen impaired in entering into dust collector, also prevent that high-temperature gas from discharging and causing ambient temperature to rise in the atmosphere.
Drawings
Fig. 1 is a schematic view of the overall structure of a methane recovery device for cellulose production according to the present invention;
FIG. 2 is a schematic structural view of the interior of the dust-removing box body of the present invention;
fig. 3 is a schematic structural view of the first partition plate, the second partition plate and the heat exchange tube of the present invention;
fig. 4 is a schematic structural view of a third air inlet pipe and a fourth air inlet pipe in the present invention;
fig. 5 is a schematic structural view of the efficiency increasing mechanism of the present invention;
fig. 6 is a schematic structural diagram of the middle fixing plate of the present invention.
In the figure: 1. a spray tower; 2. a fixing plate; 3. a first stationary tube; 4. a second stationary tube; 5. a third stationary pipe; 6. a blade; 7. a through hole; 8. a housing; 9. a heat exchange tube; 10. a first separator; 11. a second separator; 12. a dust removal box body; 13. installing a frame; 14. filtering with a screen; 15. a box door; 16. a chute; 17. a water inlet pipe; 18. a water outlet pipe; 19. a first intake pipe; 20. a first air outlet pipe; 21. an ash receiving box; 22. a guide housing; 23. a second intake pipe; 24. a second air outlet pipe; 25. a third intake pipe; 26. a fourth intake pipe; 27. an air inlet hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.
Example 1:
referring to fig. 1-6, a chloromethane recovery device for cellulose production comprises a spray tower 1, a synergistic device is arranged in the spray tower 1, a heat exchange device and a dust removal device are arranged outside the spray tower 1, the synergistic device comprises a fixing plate 2 and a synergistic mechanism, the synergistic mechanism comprises a first fixing pipe 3, a second fixing pipe 4, a third fixing pipe 5 and blades 6, the fixing plate 2 is fixedly arranged in the spray tower 1, through holes 7 are formed in the fixing plate 2, the blades 6 are provided with a plurality of parts, the third fixing pipe 5 is sleeved outside the second fixing pipe 4 and is fixedly connected through the blades 6, the second fixing pipe 4 is sleeved outside the first fixing pipe 3 and is fixedly connected through the blades 6, the third fixing pipe 5 is arranged in the through holes 7, the heat exchange device comprises a shell 8, a heat exchange pipe 9, a first partition plate 10 and a second partition plate 11, the first partition plate 10 and the second partition plate 11 are fixedly arranged in the shell 8, the heat exchange pipe 9 is arranged between the first partition plate 10 and the second partition plate 11, and two ends of the heat exchange pipe are respectively communicated with the outer sides of the first partition plate 10 and the second partition plate 11. The synergy mechanism and the through hole 7 are provided with a plurality of synergy mechanisms which are arranged on the fixing plate 2.
Referring to fig. 1-2, the dust removing device includes a dust removing box 12, a mounting frame 13 and a filter screen 14, wherein a box door 15 is hinged to one side of the dust removing box 12, the filter screen 14 and the mounting frame 13 are detachably connected by bolts, and sliding grooves 16 matched with the mounting frame 13 are formed in two sides of the interior of the dust removing box 12. The bottom of the dust removal box body 12 is provided with an ash receiving box 21 in a sliding mode, a guide cover 22 is arranged above the ash receiving box 21, a second air inlet pipe 23 is arranged on one side of the dust removal box body 12, a second air outlet pipe 24 is arranged at the top of the dust removal box body 12, the second air inlet pipe 23 is connected with the first air outlet pipe 20 through a flange plate, the second air outlet pipe 24 is communicated with the interior of the spray tower 1, and the second air inlet pipe 23 is arranged between the guide cover 22 and the filter screen 14. When the dust collection box is used, gas enters the dust collection box body 12 through the second air inlet pipe 23, the gas is filtered through the filter screen 14 and then is discharged through the second air outlet pipe 24, dust on the filter screen 14 falls on the guide cover 22 below the dust collection box body, the dust falls into the dust collection box 21 from the guide cover 22, when more dust is in the dust collection box 21 or more dust is in the filter screen 14, the box door 15 is opened in a rotating mode, the mounting frame 13 is moved out of the sliding groove 16 of the dust collection box body 12, the filter screen 14 is detached from the mounting frame 13 to be cleaned or replaced, the dust collection box 21 is taken out of the dust collection box body 12, the dust in the dust collection box body 21 is poured out and then is placed into the dust collection box body 12, the mounting frame 13 provided with the filter screen 14 is placed into the dust collection box body 12, and the box door 15 is closed in a rotating mode.
Referring to fig. 1 and 3, a water inlet pipe 17 and a water outlet pipe 18 are disposed on the housing 8, the water inlet pipe 17 and the water outlet pipe 18 are both disposed between the first partition plate 10 and the second partition plate 11, the water inlet pipe 17 is disposed at the bottom of the housing 8 and is close to the second partition plate 11, and the water outlet pipe 18 is disposed at the top of the housing 8 and is close to the first partition plate 10. The shell 8 is provided with a first air inlet pipe 19 and a first air outlet pipe 20, the first air inlet pipe 19 is arranged between the shell 8 and the first partition plate 10, and the first air outlet pipe 20 is arranged between the shell 8 and the second partition plate 11. When the heat exchanger is used, gas enters the shell 8 through the first air inlet pipe 19, then the gas passes through the heat exchange pipe 9 for heat exchange and then is discharged through the first air outlet pipe 20, cold water enters the space between the first partition plate 10 and the second partition plate 11 through the water inlet pipe 17 for heat exchange with the gas, and the heated water is discharged through the water outlet pipe 18 for heat utilization.
Referring to fig. 4, a third air inlet pipe 25 and a fourth air inlet pipe 26 are disposed in the spray tower 1, the fourth air inlet pipe 26 is set to be a vortex shape, an air inlet hole 27 is disposed on the fourth air inlet pipe 26, and two ends of the third air inlet pipe 25 are respectively connected to the fourth air inlet pipe 26 and the second air outlet pipe 24. When the gas-liquid separation device is used, gas is discharged through the second gas outlet pipe 24 and then enters the third gas inlet pipe 25, finally enters the fourth gas inlet pipe 26 and is discharged into the spray tower 1 through the gas inlet hole 27, the bottom of the spray tower 1 is provided with falling spray water, the gas is firstly discharged into the spray water to be absorbed, then moves upwards from the spray water, and is in contact with liquid in the spraying process to be absorbed, finally, methyl chloride is completely stripped, and the gas is discharged from the top of the spray tower 1.
Example 2:
in summary, when in use, air enters the shell 8 through the first air inlet pipe 19, passes through the heat exchange pipe 9 for heat exchange, and is discharged through the first air outlet pipe 20, cold water enters between the first partition plate 10 and the second partition plate 11 through the water inlet pipe 17 for heat exchange with the air, the heated water is discharged through the water outlet pipe 18 for heat utilization, the air enters the dust removal box body 12 through the second air inlet pipe 23, is filtered through the filter screen 14, and is discharged through the second air outlet pipe 24, dust on the filter screen 14 falls onto the guide cover 22 below, and then falls onto the dust receiving box 21 from the guide cover 22, when more dust is in the dust receiving box 21 or on the filter screen 14, the box door 15 is opened by rotating, the mounting frame 13 is moved out of the chute 16 of the dust removal box body 12, the filter screen 14 is detached from the mounting frame 13 for cleaning or cleaning, the dust receiving box 21 is taken out of the dust removal box body 12, the dust in the dust receiving box 21 is poured, the mounting frame 14 is installed in the dust removal box body 12, the filter screen 12 is installed, and the mounting frame 13 is closed, and the box door 15 is rotated.
Example 3:
in conclusion, when the gas spraying device is used, gas is discharged through the second gas outlet pipe 24 and then enters the third gas inlet pipe 25, finally enters the fourth gas inlet pipe 26 and is discharged into the spraying tower 1 through the gas inlet holes 27, falling spray water is arranged at the bottom of the spraying tower 1, the gas is firstly discharged into the spray water to be absorbed and then moves upwards from the spray water, the gas is shielded and scattered through the fixing plate 2 and is discharged through different synergistic mechanisms, the gas is scattered through the blades 6 when passing through the synergistic mechanisms and is fully contacted and absorbed with liquid in the spraying process, methyl chloride is finally completely stripped, and the gas is discharged from the top of the spraying tower 1.
In all the above-mentioned solutions, the actual choice of welding, bolt and nut fit connection, bolt or screw connection or other known connection methods related to the connection between two components is not repeated herein, and all the references in the above are related to the fixed connection, and preferably considered to be welding, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a cellulose production methyl chloride recovery unit, includes spray column (1), its characterized in that: the improved spraying tower is characterized in that a synergistic device is arranged in the spraying tower (1), a heat exchange device and a dust removal device are arranged outside the spraying tower (1), the synergistic device comprises a fixing plate (2) and a synergistic mechanism, the synergistic mechanism comprises a first fixing pipe (3), a second fixing pipe (4), a third fixing pipe (5) and blades (6), the fixing plate (2) is fixedly arranged in the spraying tower (1), through holes (7) are formed in the fixing plate (2), the blades (6) are provided with a plurality of parts, the third fixing pipe (5) is sleeved outside the second fixing pipe (4) and is fixedly connected with the blades (6), the second fixing pipe (4) is sleeved outside the first fixing pipe (3) and is fixedly connected with the blades (6), the third fixing pipe (5) is arranged in the through holes (7), the heat exchange device comprises a shell (8), a heat exchange pipe (9), a first partition plate (10) and a second partition plate (11), the first partition plate (10) and the second partition plate (11) are fixedly arranged in the shell (8), and the two ends of the first partition plate (9) and the second partition plate (11) are respectively communicated with the second partition plate (11).
2. The apparatus for recovering chloromethane from cellulose according to claim 1, wherein: the dust removal device comprises a dust removal box body (12), a mounting frame (13) and a filter screen (14), wherein a box door (15) is hinged to one side of the dust removal box body (12), the filter screen (14) and the mounting frame (13) are detachably connected through bolts, and sliding grooves (16) matched with the mounting frame (13) are formed in two sides of the inner portion of the dust removal box body (12).
3. The apparatus for recovering chloromethane from cellulose according to claim 1, wherein: be equipped with inlet tube (17) and outlet pipe (18) on shell (8), and inlet tube (17) and outlet pipe (18) all set up between first baffle (10) and second baffle (11), and inlet tube (17) set up in the bottom of shell (8) and are close to second baffle (11), and outlet pipe (18) set up at the top of shell (8) and are close to first baffle (10).
4. The apparatus for recovering chloromethane from cellulose according to claim 2, wherein: be equipped with first intake pipe (19) and first outlet duct (20) on shell (8), first intake pipe (19) set up between shell (8) and first baffle (10), and first outlet duct (20) set up between shell (8) and second baffle (11).
5. The apparatus for recovering chloromethane from cellulose according to claim 4, wherein: the bottom of dust removal box (12) slides and is equipped with and connects ash box (21), the top that connects ash box (21) is equipped with guide housing (22), one side of dust removal box (12) is equipped with second intake pipe (23), the top of dust removal box (12) is equipped with second outlet duct (24), second intake pipe (23) and first outlet duct (20) pass through the ring flange and connect, the inside intercommunication of second outlet duct (24) and spray column (1), and second intake pipe (23) set up between guide housing (22) and filter screen (14).
6. The apparatus for recovering chloromethane from cellulose according to claim 5, wherein: the spray tower is characterized in that a third air inlet pipe (25) and a fourth air inlet pipe (26) are arranged in the spray tower (1), the fourth air inlet pipe (26) is arranged to be in a vortex shape, an air inlet hole (27) is formed in the fourth air inlet pipe (26), and two ends of the third air inlet pipe (25) are connected with the fourth air inlet pipe (26) and the second air outlet pipe (24) respectively.
7. The apparatus for recovering chloromethane from cellulose according to claim 1, wherein: the synergistic mechanism and the through hole (7) are provided with a plurality of synergistic mechanisms which are arranged on the fixing plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221860544.1U CN217613912U (en) | 2022-07-19 | 2022-07-19 | Chloromethane recovery unit for cellulose production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221860544.1U CN217613912U (en) | 2022-07-19 | 2022-07-19 | Chloromethane recovery unit for cellulose production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217613912U true CN217613912U (en) | 2022-10-21 |
Family
ID=83634537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221860544.1U Active CN217613912U (en) | 2022-07-19 | 2022-07-19 | Chloromethane recovery unit for cellulose production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217613912U (en) |
-
2022
- 2022-07-19 CN CN202221860544.1U patent/CN217613912U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 050000 Jinzhou Economic Development Zone, Shijiazhuang, Hebei Patentee after: Hebei Yicheng Cellulose Co.,Ltd. Country or region after: China Address before: 050000 Jinzhou Economic Development Zone, Shijiazhuang, Hebei Patentee before: Jinzhou Yicheng cellulose Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |