CN211468863U - A waste gas collection device for methyl tetrahydrophthalic anhydride filling - Google Patents
A waste gas collection device for methyl tetrahydrophthalic anhydride filling Download PDFInfo
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- CN211468863U CN211468863U CN201922453434.8U CN201922453434U CN211468863U CN 211468863 U CN211468863 U CN 211468863U CN 201922453434 U CN201922453434 U CN 201922453434U CN 211468863 U CN211468863 U CN 211468863U
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- collecting box
- filling
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- hole
- wall
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Abstract
The utility model relates to the field of chemical equipment, in particular to a waste gas collecting device for filling methyl tetrahydrophthalic anhydride, which comprises a discharging pipe fixed below a reaction kettle, a collecting box is arranged below the discharging pipe, a rubber hose is fixed on the upper surface of the collecting box, one end of the rubber hose, which is far away from the collecting box, is sleeved on the outer wall of the discharging pipe, one end of the rubber hose, which is far away from the discharging pipe, is provided with a blanking part for filling the methyl tetrahydrophthalic anhydride into a filling barrel, one side of the collecting box, which is far away from the rubber hose, is provided with a first hole, an exhaust pipe is fixed on the upper surface of the collecting box, one end of the exhaust pipe, which is far away from the collecting box, is connected with an air exhauster, the exhaust pipe is connected with the air inlet of, the working environment of the staff on the workbench is ensured, and the air pollution is reduced.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment and specifically relates to a waste gas collection device for filling of methyl tetrahydrophthalic anhydride is related to.
Background
The utility model with the publication number of CN208912074U discloses a methyl tetrahydrophthalic anhydride isomerization reaction kettle, which belongs to the field of reaction kettles, and solves the problems that the jacket is less in contact with raw materials and the temperature in the reaction kettle can not be rapidly controlled, the technical proposal is that the device comprises a shell, the upper end of the shell is fixedly connected with a feeding pipe communicated with the interior of the shell, the lower end of the shell is fixedly connected with a discharge pipe communicated with the interior of the shell, a hollow spiral pipe is connected in the shell in a rotating way, one end of the spiral pipe is communicated with a water outlet pipe, the other end of the spiral pipe is communicated with a water inlet header pipe, the shell is fixedly connected with a servo motor which drives the spiral pipe to rotate, the structure of the utility model is reasonable, the spiral pipe is directly contacted with the raw materials in the reaction kettle, therefore, the heat exchange rate of the spiral pipe and the raw materials in the reaction kettle is higher, and the temperature of the reaction kettle is controlled more quickly.
However, when the conventional methyltetrahydrophthalic anhydride manufacturers fill the produced methyltetrahydrophthalic anhydride into the filling barrel, the opening of the filling barrel is open, and harmful gas generated by the methyltetrahydrophthalic anhydride and harmful gas in the reaction kettle directly overflow into the outside air in the discharging process, so that air pollution is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be used for the waste gas collection device of methyl tetrahydrophthalic anhydride filling, its in-process harmful gas that has the filling is difficult to directly to spill over the external world, has ensured the operational environment in the factory, has reduced environmental pollution.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a waste gas collecting device for filling methyl tetrahydrophthalic anhydride comprises a discharge pipe which is fixed below a reaction kettle and is communicated with the inner cavity of the reaction kettle, a collecting box for collecting waste gas is arranged below the discharge pipe, a rubber hose communicated with the inner cavity of the collecting box is fixed on the upper surface of the collecting box, one end of the rubber hose, which is far away from the collecting box, is sleeved on the outer wall of the discharge pipe, one end of the rubber hose, which is far away from the discharge pipe, is provided with a discharging piece for filling the methyl tetrahydrophthalic anhydride into the filling barrel, one side of the collecting box, which is far away from the rubber hose, is provided with a first hole which is sleeved on the outer wall of the filling barrel, an exhaust pipe communicated with the inner cavity of the collection box is fixed on the upper surface of the collection box, one end of the exhaust pipe far away from the collection box is connected with an exhaust fan, the exhaust pipe is connected to the air inlet of the exhaust fan through the soft air pipe, and one end, far away from the exhaust pipe, of the exhaust fan is connected to the air inlet of the spray tower.
Through adopting above-mentioned technical scheme, when filling with the methyl tetrahydrophthalic anhydride that reacts in the reation kettle, open the valve on the unloading pipe, liquid methyl tetrahydrophthalic anhydride is from the rubber hose, in the filling bucket is directly packed into through unloading spare, the harmful gas that the filling in-process produced concentrates on in the collecting box, the air exhauster makes the collecting box inner chamber form the negative pressure, external air gets into in the collecting box from the gap of collecting box and filling bucket, thereby ensure the collecting box can not crushed, the gas that gets into in the collecting box is taken out into the spray column in through the blast pipe, centralized processing, thereby reduced the filling in-process, harmful gas directly spills over the external world, the operational environment of workstation personnel has been ensured, air pollution has been reduced.
The utility model discloses further set up to: the blanking part comprises a hemispherical plug and a second hole, the hemispherical plug is fixed to one end, far away from the blanking pipe, of the rubber hose, the second hole is formed in the hemispherical plug, the radius of the hemispherical plug is equal to the inner diameter of a barrel opening of the filling barrel, one end of the second hole is communicated with the inner cavity of the filling barrel, the other end of the second hole is communicated with the inner cavity of the rubber hose, a third hole is formed in the hemispherical plug, one end of the third hole is communicated with the inner cavity of the filling barrel, and the other end of the third hole is.
Through adopting above-mentioned technical scheme, when the case is filled in the filling bucket, fill in the bung hole of filling bucket with the hemisphere stopper this moment for the bung hole of hemisphere stopper with the filling bucket seals, filling methyl tetrahydrophthalic anhydride in the filling bucket this moment, harmful gas in the filling bucket is discharged from the third hole by the inner chamber of filling bucket, then get into in the collecting box, in the gas suction spray column in with the collecting box by the air exhauster again, this process has avoided methyl tetrahydrophthalic anhydride sputter to flow along the outer wall of filling bucket on the inner wall of collecting box through setting up the hemisphere stopper.
The utility model discloses further set up to: the first hole is internally fixed with a sealing ring, the upper surface of the collecting box is provided with a fourth hole communicated with the inner cavity of the collecting box, and the fourth hole is internally fixed with an air inlet one-way valve.
Through adopting above-mentioned technical scheme, the leakproofness between collecting box and the filling bucket has been strengthened to the sealing washer for harmful gas in the collecting box is difficult to spill over the external world from the gap between collecting box and the filling bucket, has further ensured operating personnel's operational environment, has reduced air pollution, through setting up fourth hole and check valve, makes the negative pressure that the air exhauster formed can not crush the collecting box.
The utility model discloses further set up to: an annular plate is fixed on the inner wall of one end of the exhaust pipe communicated with the inner cavity of the collecting box, and an air outlet one-way valve is fixed on the inner wall of the annular plate.
Through adopting above-mentioned technical scheme, the check valve of giving vent to anger makes the gas of exhaust fan suction spray column be difficult to flow back in the collecting box, has further ensured operating personnel's operational environment.
The utility model discloses further set up to: two risers are fixed on the lower end face of the reaction kettle, a fifth hole is formed in the side wall of each riser in a penetrating mode, a sliding block slides in the fifth hole, one side of the sliding block is fixed on the outer wall of one side of the collecting box, the collecting box is located between the two sliders, an air spring is arranged on one side, away from the discharging pipe, of each riser, one end of the air spring is fixed on the outer wall of the reaction kettle, and the other end of the air spring is fixed on one side, away from the.
Through adopting above-mentioned technical scheme, when having filled a filling bucket, lift the collecting box vertically upwards this moment, the slider is along the vertical upwards slip of the length direction of riser for relatively lighter when the collecting box lifts up under the effect of air spring.
The utility model discloses further set up to: handles are fixed on the outer walls of the two sides of the collecting box respectively and are U-shaped, and the two ends of each handle are fixed on the outer wall of the collecting box.
By adopting the technical scheme, the collecting box is more convenient to lift up by arranging the handle, and the collecting box is convenient for workers to lift up.
The utility model discloses further set up to: the handle is sleeved with a rubber sleeve.
Through adopting above-mentioned technical scheme, the rubber sleeve has increased the frictional force between staff's palm and the handle, and the staff of being convenient for lifts up the collecting box.
The utility model discloses further set up to: the inner wall of the collecting box is plated with a polyethylene layer.
Through adopting above-mentioned technical scheme, plated one deck polyethylene layer on the inner wall of collecting box for the collecting box is difficult to be corroded by the produced chemical gas of methyl tetrahydrophthalic anhydride, has improved the life of collecting box.
To sum up, the utility model discloses a beneficial technological effect does: by arranging the collecting box, harmful gas generated in the filling process is difficult to directly overflow to the outside, the working environment of staff on a workbench is ensured, and air pollution is reduced; the hemispherical plug is arranged to prevent the methyltetrahydrophthalic anhydride from sputtering on the inner wall of the collecting box and flowing out along the outer wall of the filling barrel; by arranging the sealing ring, harmful gas in the collecting box is difficult to overflow to the outside from a gap between the collecting box and the filling barrel, so that the working environment of operators is further ensured, and air pollution is reduced; by arranging the gas spring and the handle, the collecting box is conveniently lifted by workers, the labor intensity of the workers is reduced, and the filling speed is increased; the inner wall of the collecting box is plated with the polyethylene layer, so that the collecting box is difficult to corrode by chemical gas generated by methyl tetrahydrophthalic anhydride, and the service life of the collecting box is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic structural view of the collecting box of the present embodiment;
fig. 3 is an exploded view of the internal structure of the collection box of the present embodiment.
Reference numerals: 1. a reaction kettle; 2. a discharge pipe; 3. a collection box; 4. a rubber hose; 5. blanking parts; 6. a first hole; 7. an exhaust pipe; 8. an exhaust fan; 9. a hemispherical plug; 10. a second hole; 11. a third aperture; 12. a seal ring; 13. a fourth aperture; 14. an air inlet check valve; 15. an annular plate; 16. an air outlet one-way valve; 17. a vertical plate; 18. a fifth aperture; 19. a slider; 20. a gas spring; 21. a handle; 22. a rubber sleeve; 23. a polyethylene layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, for the utility model discloses a waste gas collection device for methyl tetrahydrophthalic anhydride filling, including discharging pipe 2, discharging pipe 2 is vertical to be fixed at reation kettle 1's lower surface, and discharging pipe 2 one end intercommunication reation kettle 1's inner chamber, the other end are provided with collecting box 3 that is used for collecting waste gas, and collecting box 3 is the rectangle form.
As shown in fig. 1 and 2, two risers 17 are fixed to the lower surface of the reaction kettle 1, the two risers 17 are respectively located at two sides of the collection box 3, one side, away from the collection box 3, of each riser 17 is penetrated and provided with a fifth hole 18, the cross section of each fifth hole 18 is in a T shape, a sliding block 19 is arranged in each fifth hole 18 in a sliding manner, each sliding block 19 is a T-shaped block, a gas spring 20 is arranged on one side, away from the collection box 3, of each sliding block 19, a base of each gas spring 20 is fixed to the lower surface of the outer wall of the reaction kettle 1, one end, away from the reaction kettle 1, of each gas spring 20 is fixed to each sliding block 19, each sliding block.
As shown in fig. 2, the outer wall of the collecting box 3 is further provided with a handle 21 which is convenient for lifting the collecting box 3, the handle 21 is U-shaped, two ends of the handle 21 are fixed on the outer wall of the collecting box 3, and the handle 21 is sleeved with a rubber sleeve 22.
As shown in fig. 2 and 3, a rubber hose 4 communicated with the inner wall of the collection box 3 is fixed on the upper end face of the collection box 3, one end of the rubber hose 4, which is far away from the collection box 3, is fixed on a feed opening of the discharge pipe 2 through a hose clamp, a fourth hole 13 communicated with the inner cavity of the collection box 3 is formed in the upper surface of the collection box 3, an air inlet check valve 14 is fixed in the fourth hole 13, a first hole 6 is formed in the lower end face of the collection box 3, a sealing ring 12 is further fixed on the inner wall of the first hole 6, the inner wall of the sealing ring 12 is attached to the outer wall of the filling barrel, a polyethylene layer 23 is further plated on the inner wall of the collection box 3, and the filling barrel is a special.
As shown in fig. 2 and 3, the one end that discharging pipe 2 was kept away from to rubber hose 4 is provided with unloading piece 5, unloading piece 5 is located the 3 inner chambers of collecting box, unloading piece 5 includes hemisphere stopper 9 and second hole 10, hemisphere stopper 9 is fixed in the one end that rubber hose 4 stretched into the 3 inner chambers of collecting box, the sphere orientation filling bucket of hemisphere stopper 9, the radius of hemisphere stopper 9 equals the radius of filling bucket bung hole, it has seted up third hole 11 to run through on the hemisphere stopper 9, the inner chamber of 11 one end intercommunication filling bucket of third hole, the inner chamber of other end intercommunication collecting box 3, second hole 10 for the unloading runs through and sets up on the upper surface of hemisphere stopper 9, the diameter of second hole 10 equals the diameter of discharging pipe 2.
As shown in fig. 2 and 3, an exhaust pipe 7 communicated with an inner cavity of the collection box 3 is fixed on the upper surface of the collection box 3, an annular plate 15 is fixed in one end port of the inner cavity of the collection box 3, an air outlet one-way valve 16 is fixed on the inner wall of the annular plate 15, an exhaust fan 8 is placed on the bottom surface of the lower part of the reaction kettle 1, one end of the exhaust pipe 7, which is far away from the collection box 3, is connected to an air inlet of the exhaust fan 8 through a soft air pipe, and one end of the exhaust pipe 7, which is far away from the exhaust fan 8.
The implementation principle of the embodiment is as follows: when the methyl tetrahydrophthalic anhydride is filled into the filling barrel, the filling barrel is placed under the collecting box 3, the barrel size is determined in the known traditional filling process, an electronic scale is generally placed under the filling barrel and used for judging whether filling is stopped or not, after the filling barrel is placed, the handle 21 is pulled to enable the collecting box 3 to vertically slide downwards along the length direction of the vertical plate 17 until the inner wall of the sealing ring 12 is attached to the outer wall of the filling barrel, the exhaust fan 8 is opened at the moment, then the valve on the discharge pipe 2 is rotated to enable the methyl tetrahydrophthalic anhydride in the reaction kettle 1 to be filled into the filling barrel, harmful gas generated in the filling process is firstly collected in the inner cavity of the collecting box 3, the exhaust fan 8 enables negative pressure to be formed in the collecting box 3, further the harmful gas in the collecting box 3 is enabled to be filled under the action of the exhaust fan 8, and the waste gas passes through the soft gas pipe from the exhaust pipe 7 and then is discharged into a pipeline of the spray tower for uniform waste gas treatment.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a waste gas collection device for methyl tetrahydrophthalic anhydride filling, is including fixing discharging pipe (2) rather than the inner chamber intercommunication in reation kettle (1) below, its characterized in that: the device is characterized in that a collecting box (3) used for collecting waste gas is arranged below the discharging pipe (2), a rubber hose (4) communicated with an inner cavity of the collecting box (3) is fixed on the upper surface of the collecting box (3), one end, far away from the collecting box (3), of the rubber hose (4) is sleeved on the outer wall of the discharging pipe (2), a blanking piece (5) used for pouring methyl tetrahydrophthalic anhydride into a filling barrel is arranged at one end, far away from the rubber hose (4), of the rubber hose (4), a first hole (6) used for being sleeved on the outer wall of the filling barrel is formed in one side, far away from the rubber hose (4), of the collecting box (3), an exhaust pipe (7) communicated with the inner cavity of the collecting box is fixed on the upper surface of the collecting box (3), one end, far away from the collecting box (3), of the exhaust pipe (7) is connected with an exhaust fan, and one end of the exhaust fan (8) far away from the exhaust pipe (7) is connected to the air inlet of the spray tower.
2. The exhaust gas collecting device for methyltetrahydrophthalic anhydride filling according to claim 1, wherein: blanking part (5) including fix hemisphere stopper (9), offer second hole (10) on hemisphere stopper (9) of keeping away from blanking pipe one end in rubber hose (4), the radius of hemisphere stopper (9) equals the bung hole internal diameter of filling bucket, second hole (10) one end intercommunication filling bucket's inner chamber, the inner chamber of other end intercommunication rubber hose (4), third hole (11) have been seted up on hemisphere stopper (9), the inner chamber of third hole (11) one end intercommunication filling bucket, the inner chamber of other end intercommunication collecting box (3).
3. The exhaust gas collecting device for methyltetrahydrophthalic anhydride filling according to claim 1, wherein: a sealing ring (12) is fixed in the first hole (6), a fourth hole (13) communicated with the inner cavity of the collecting box (3) is formed in the upper surface of the collecting box, and an air inlet one-way valve (14) is fixed in the fourth hole (13).
4. The exhaust gas collecting device for methyltetrahydrophthalic anhydride filling according to claim 1, wherein: an annular plate (15) is fixed on the inner wall of one end of the exhaust pipe (7) communicated with the inner cavity of the collecting box (3), and an air outlet one-way valve (16) is fixed on the inner wall of the annular plate (15).
5. The exhaust gas collecting device for methyltetrahydrophthalic anhydride filling according to claim 1, wherein: two risers (17) are fixed on the lower end face of the reaction kettle (1), a fifth hole (18) is formed in the side wall of the riser (17) in a penetrating mode, a sliding block (19) slides in the fifth hole (18), one side of the sliding block (19) is fixed on the outer wall of one side of the collecting box (3), the collecting box (3) is located between the two sliding blocks (19), one side, far away from the discharging pipe (2), of the riser (17) is provided with an air spring (20), one end of the air spring (20) is fixed on the outer wall of the reaction kettle (1), and the other end of the air spring (20) is fixed on one side, far away from the collecting box (.
6. The exhaust gas collecting device for methyltetrahydrophthalic anhydride filling according to claim 5, wherein: handles (21) are respectively fixed on the outer walls of the two sides of the collecting box (3), the handles (21) are U-shaped, and the two ends of each handle (21) are fixed on the outer wall of the collecting box (3).
7. The exhaust gas collecting device for methyltetrahydrophthalic anhydride filling according to claim 6, wherein: the handle (21) is sleeved with a rubber sleeve (22).
8. The exhaust gas collecting device for methyltetrahydrophthalic anhydride filling according to claim 1, wherein: the inner wall of the collecting box (3) is plated with a polyethylene layer (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453434.8U CN211468863U (en) | 2019-12-26 | 2019-12-26 | A waste gas collection device for methyl tetrahydrophthalic anhydride filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453434.8U CN211468863U (en) | 2019-12-26 | 2019-12-26 | A waste gas collection device for methyl tetrahydrophthalic anhydride filling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211468863U true CN211468863U (en) | 2020-09-11 |
Family
ID=72378006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922453434.8U Expired - Fee Related CN211468863U (en) | 2019-12-26 | 2019-12-26 | A waste gas collection device for methyl tetrahydrophthalic anhydride filling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211468863U (en) |
-
2019
- 2019-12-26 CN CN201922453434.8U patent/CN211468863U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200911 Termination date: 20211226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |