CN211384516U - Be used for phenol type exhaust purification processing apparatus - Google Patents
Be used for phenol type exhaust purification processing apparatus Download PDFInfo
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- CN211384516U CN211384516U CN201922341559.1U CN201922341559U CN211384516U CN 211384516 U CN211384516 U CN 211384516U CN 201922341559 U CN201922341559 U CN 201922341559U CN 211384516 U CN211384516 U CN 211384516U
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Abstract
The utility model discloses a be used for phenol type exhaust purification processing apparatus, the power distribution box comprises a box body, the treatment chamber has been seted up on the box, fixed chamber and filter chamber, the top of fixed chamber and filter chamber is the opening and constitutes, one side fixed mounting of box has the exhaust gas pipe, the exhaust gas pipe communicates with the treatment intracavity mutually, treatment intracavity fixed mounting has first filter, one side fixed mounting that the box kept away from the exhaust gas pipe has the water pump, the suction end fixed mounting of water pump has first water pipe, the one end that the water pump was kept away from to first water pipe extends to the treatment intracavity and is located the below of first filter, the discharge end fixed mounting of water pump has the second water pipe, be equipped with the third water pipe in the treatment chamber. The utility model relates to a rationally, the practicality is good, and is effectual to the purification treatment of waste gas, and alkaline solution is abundant with the neutralization reaction of phenol type waste gas, can use to alkaline liquid circulation moreover, and it is abundant to utilize alkaline solution, has energy-conserving effect.
Description
Technical Field
The utility model relates to a waste gas treatment equipment technical field specifically is a be used for phenol type exhaust purification processing apparatus.
Background
Phenol waste gas refers to waste gas containing phenol, chlorophenol, dichlorophenol and other substances with a certain concentration, belongs to a meta-acid gas, many products in the chemical field can generate the gas in the production process, the phenol gas has great harm to human beings and the environment, and in a chemical plant, in order to reduce pollution and damage of the phenol waste gas to the environment, purification treatment equipment is needed to be used for purifying and treating the phenol waste gas and then discharging the phenol waste gas, so that the damage to the environment is reduced.
However, in the prior art, the purification treatment effect of the phenol waste gas purification treatment equipment on the waste gas is not good, so that the contact between the sprayed alkaline liquid and the waste gas is not sufficient, the neutralization reaction is not sufficient, the usage amount of the alkaline liquid is large, the waste of the alkaline liquid is serious, and the energy-saving effect is not achieved.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a be not enough to prior art, the utility model provides a be used for phenol type exhaust purification processing apparatus, it is not good to the purification treatment effect of waste gas to have solved phenol type exhaust purification treatment equipment, and the alkaline liquid that sprays out is not abundant with the contact of waste gas, and neutralization reaction is not abundant, and the use amount of alkaline liquid is great, and is extravagant serious, does not have the problem of energy-conserving effect.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a purification treatment device for phenol waste gas comprises a box body, wherein a treatment chamber, a fixed chamber and a filter chamber are arranged on the box body, the tops of the fixed chamber and the filter chamber are both formed by openings, an exhaust gas pipe is fixedly arranged on one side of the box body and is communicated with the inside of the treatment chamber, a first filter plate is fixedly arranged in the treatment chamber, a water pump is fixedly arranged on one side of the box body away from the exhaust gas pipe, a first water pipe is fixedly arranged at the suction end of the water pump, one end of the first water pipe away from the water pump extends into the treatment chamber and is positioned below the first filter plate, a second water pipe is fixedly arranged at the discharge end of the water pump, a third water pipe is arranged in the treatment chamber, two inclined spray heads and two straight spray heads are fixedly arranged at the bottom of the third water pipe, a first through hole is arranged on the inner wall of the bottom of the fixed chamber, a connecting pipe is rotatably arranged in the, the bottom end of the connecting pipe is fixedly connected with the top of a third water pipe, the connecting pipe is communicated with the third water pipe, one end of the second water pipe, which is far away from the water pump, extends into the connecting pipe, a first gear which is positioned in a fixed cavity is fixedly sleeved on the connecting pipe, a first motor is fixedly installed on the inner wall of the bottom of the fixed cavity, a second gear is fixedly installed at the output end of the first motor, the second gear is meshed with the first gear, a box cover is fixedly installed at the top of the box body, a water condensing plate and an active carbon screen plate are fixedly installed in the filtering cavity, the water condensing plate is positioned below the active carbon screen plate, a rectangular hole is formed in the inner wall of the bottom of the filtering cavity, a second filter plate is fixedly installed in the rectangular hole, an air outlet pipe which is positioned above the waste gas pipe is fixedly installed at one side of the box body, the air outlet pipe is, in the both ends of puddler all extended to the second through-hole, one side fixed mounting of box had the second motor, the output axle head of second motor and the one end fixed connection of puddler.
Preferably, the fixed mounting that the waste gas pipe was kept away from to the box has the liquid feeding pipe, and the liquid feeding pipe is linked together with the treatment chamber is inside, and the top thread of liquid feeding pipe installs the end cover.
Preferably, a water supply pipe located below the exhaust pipe is fixedly installed at one side of the box body, a first stop valve is fixedly installed on the water supply pipe, and the water supply pipe is communicated with the inside of the processing chamber.
Preferably, a residue discharge pipe positioned below the water pump is fixedly installed on one side of the box body, a second stop valve is fixedly installed on the residue discharge pipe, and the residue discharge pipe is communicated with the inside of the treatment cavity.
Preferably, the connecting pipe is fixedly sleeved with a first bearing, an outer ring of the first bearing is fixedly connected with the inner wall of the first through hole, the second water pipe is fixedly sleeved with a second bearing located in the connecting pipe, and the second bearing is fixedly connected with the inner wall of the connecting pipe.
Preferably, a third bearing is fixedly sleeved on the stirring rod, and an outer ring of the third bearing is fixedly connected with the inner wall of the second through hole.
Preferably, a cleaning opening is formed in the inner wall of one side of the treatment cavity, a cleaning door is fixedly mounted on one side of the box body and matched with the cleaning opening, a baffle is fixedly mounted on the inner wall of one side of the treatment cavity and arranged in an inclined mode, and the baffle is located above the waste gas pipe.
(III) advantageous effects
The utility model provides a be used for phenol type exhaust purification processing apparatus. The method has the following beneficial effects:
(1) the device for purifying and treating the phenol waste gas comprises a treatment cavity, a water feeding pipe, a stirring rod, a first motor, a second motor, a first gear, a second gear, a first connecting pipe, a second connecting pipe, a first inclined nozzle, two inclined nozzles, two straight nozzles, a second inclined nozzle, two straight nozzles, a second connecting pipe, a third connecting pipe, a fourth connecting pipe, a fifth connecting pipe, a sixth connecting pipe, a fifth connecting pipe, a sixth connecting pipe, a, the purification effect of the processing to phenol class waste gas is improved, atomizing spun alkali lye water smoke and the contact of phenol class waste gas take place neutralization reaction, and the dust granule in reactant and the phenol class waste gas drops to first filter on, utilizes first filter to block reactant and dust granule and filters, and circulation flow through the water pump can carry out cyclic utilization to alkaline solution, resources are saved for alkaline solution can fully take place neutralization reaction with the contact of phenol class waste gas.
(2) This a be used for phenol type exhaust purification processing apparatus, through utilizing the second filter to block the dust impurity in the waste gas, avoid dust impurity to follow the outlet duct and discharge, utilize the board that condenses to the water smoke in the waste gas and condense, avoid waste gas to carry water smoke and discharge from the outlet duct, utilize the activated carbon otter board to adsorb purification to tiny dust particle, chlorine residue, peculiar smell etc. in the waste gas, exhaust from the outlet duct discharge after the purification treatment, improved the purifying effect to exhaust-gas treatment.
(3) This a be used for phenol type exhaust purification processing apparatus, through can regularly dismantle the case lid down, be convenient for clean activated carbon screen surface, regularly beat the second stop valve on the incomplete pipe of open, the sewage discharge in the treatment chamber changes, regularly dismantles down the clearance door, clears away the impurity granule on the first filter.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic sectional view of the front view of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 2.
In the figure: 1. a box body; 2. a treatment chamber; 3. a fixed cavity; 4. a filter chamber; 5. an exhaust gas pipe; 6. a first filter plate; 7. a water pump; 8. a first water pipe; 9. a second water pipe; 10. a third water pipe; 11. an inclined nozzle; 12. a straight nozzle; 13. a first through hole; 14. a connecting pipe; 15. a first gear; 16. a first motor; 17. a second gear; 18. a box cover; 19. a water condensation plate; 20. an activated carbon screen plate; 21. a rectangular hole; 22. a second filter plate; 23. an air outlet pipe; 24. a second through hole; 25. a stirring rod; 26. a second motor; 27. a liquid feeding pipe; 28. a water supply pipe; 29. and (4) discharging a residual pipe.
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.
As shown in fig. 1-3, the utility model provides a technical solution: a purification treatment device for phenol waste gas comprises a box body 1, a treatment chamber 2, a fixed chamber 3 and a filter chamber 4 are arranged on the box body 1, the tops of the fixed chamber 3 and the filter chamber 4 are both formed by openings, a waste gas pipe 5 is fixedly arranged on one side of the box body 1, the waste gas pipe 5 is communicated with the inside of the treatment chamber 2, a first filter plate 6 is fixedly arranged in the treatment chamber 2, a water pump 7 is fixedly arranged on one side of the box body 1 away from the waste gas pipe 5, a first water pipe 8 is fixedly arranged at the suction end of the water pump 7, one end of the first water pipe 8 away from the water pump 7 extends into the treatment chamber 2 and is positioned below the first filter plate 6, a second water pipe 9 is fixedly arranged at the discharge end of the water pump 7, a third water pipe 10 is arranged in the treatment chamber 2, two inclined nozzles 11 and two straight nozzles 12 are fixedly arranged at the bottom of the third water pipe 10, a first through hole 13 is arranged on, a connecting pipe 14 is rotatably installed in the first through hole 13, the connecting pipe 14 is of a hollow structure, two ends of the connecting pipe 14 extend out of the first through hole 13, the bottom end of the connecting pipe 14 is fixedly connected with the top of a third water pipe 10, the connecting pipe 14 is communicated with the third water pipe 10, one end of a second water pipe 9, which is far away from the water pump 7, extends into the connecting pipe 14, a first gear 15 which is located in the fixed cavity 3 is fixedly sleeved on the connecting pipe 14, a first motor 16 is fixedly installed on the inner wall of the bottom of the fixed cavity 3, a second gear 17 is fixedly installed at the output end of the first motor 16, the second gear 17 is meshed with the first gear 15, a box cover 18 is fixedly installed at the top of the box body 1, a water condensing plate 19 and an active carbon screen plate 20 are fixedly installed in the filter cavity 4, the water condensing plate 19 is located below the active carbon screen plate 20, a rectangular hole 21 is formed in the inner wall of the bottom of the filter, one side fixed mounting of box 1 has the outlet duct 23 that is located 5 tops of waste gas pipe, and outlet duct 23 is inside to be linked together with filter chamber 4, has seted up second through-hole 24 on one side inner wall of treatment chamber 2, and puddler 25 is installed to the 24 internal rotations of second through-hole, and in the both ends of puddler 25 all extended to second through-hole 24, one side fixed mounting of box 1 had second motor 26, and the output shaft end of second motor 26 and the one end fixed connection of puddler 25.
A liquid feeding pipe 27 is fixedly installed on the box body 1 far away from the waste gas pipe 5, the liquid feeding pipe 27 is communicated with the inside of the treatment cavity 2, an end cover is installed at the top end of the liquid feeding pipe 27 through threads, a water feeding pipe 28 positioned below the waste gas pipe 5 is fixedly installed on one side of the box body 1, a first stop valve is fixedly installed on the water feeding pipe 28, the water feeding pipe 28 is communicated with the inside of the treatment cavity 2, a residue discharging pipe 29 positioned below the water pump 7 is fixedly installed on one side of the box body 1, a second stop valve is fixedly installed on the residue discharging pipe 29, the residue discharging pipe 29 is communicated with the inside of the treatment cavity 2, a first bearing is fixedly sleeved on the connecting pipe 14, the outer ring of the first bearing is fixedly connected with the inner wall of the first through hole 13, a second bearing positioned in the connecting pipe 14 is fixedly sleeved on the second water pipe 9, the second bearing is fixedly connected with the inner wall of the connecting pipe 14, seted up the clearance mouth on one side inner wall of treatment chamber 2, one side fixed mounting of box 1 has the cleaning door, cleaning door and clearance mouth looks adaptation, and fixed mounting has the baffle on one side inner wall of treatment chamber 2, and the baffle sets up for the slope, and the baffle is located the top of exhaust gas pipe 5.
When in use, the box cover 18 is fixedly arranged at the top of the box body 1 through a plurality of screws and can be disassembled, the cleaning door is fixedly arranged at one side of the box body 1 through a plurality of screws and is electrically connected with the control switch and the power line in sequence to form a loop, the cleaning door seals the cleaning opening, the first stop valve on the water supply pipe 28 is opened, the box body 1 is provided with the control switch and the power line, the water pump 7, the first motor 16, the second motor 26, the control switch and the power line are electrically connected to form a loop, the control switch can respectively control the start and stop work of the water pump 7, the first motor 16 and the second motor 26, a proper amount of clean water is injected into the treatment cavity 2, an end cover on the liquid supply pipe 27 is unscrewed to add a proper amount of alkaline medicament into the treatment cavity 2, the second motor 26 is started to work, the second motor 26 drives the stirring rod 25 to rotate, the stirring rod 25 can be used for uniformly stirring and mixing the clean, the water pump 7 and the first motor 16 are started to work, the conveying of the water pump 7 is utilized to pump the alkaline solution in the treatment cavity 2 into the third water pipe 10 through the first water pipe 8, the water pump 7 and the second water pipe 9 in sequence, and the alkaline solution is atomized and sprayed out from the two inclined nozzles 11 and the two straight nozzles 12, the first motor 16 drives the second gear 17 to rotate, the second gear 17 drives the first gear 15 and the connecting pipe 14 to rotate, the connecting pipe 14 drives the third water pipe 10, the two inclined nozzles 11 and the two straight nozzles 12 to rotate, so that the atomized alkaline solution is uniformly sprayed into the treatment cavity 2, the atomized alkaline solution can be fully contacted with and reacted with the phenol waste gas, the treatment and purification effect on the phenol waste gas is improved, the atomized alkaline solution water mist is contacted with and reacted with the phenol waste gas to be neutralized, and the reactant and dust particles in the phenol waste gas fall onto the first filter plate 6, utilize first filter 6 to block filtration to reactant and dust particle, alkali lye after the filtration passes through first filter 6, flow back to alkaline solution, circulation flow through water pump 7, can recycle alkaline solution, resources are saved, make alkaline solution fully contact with phenol type waste gas and take place neutralization reaction, waste gas after the processing passes through second filter 22 in proper order, condense water board 19 and active carbon otter board 20 and discharge from outlet duct 23, utilize second filter 22 to block the dust impurity in the waste gas, avoid dust impurity to discharge from outlet duct 23, utilize water board 19 to condense the water smoke in the waste gas, avoid waste gas to carry water smoke and discharge from outlet duct 23, utilize active carbon otter board 20 to carry out adsorption purification to tiny dust particle, residual chlorine, peculiar smell etc. in the waste gas, thereby has improved the purification effect of waste gas treatment, after the work is finished, the water pump 7 and the first motor 16 are stopped, the box cover 18 can be periodically removed to facilitate cleaning of the surface of the activated carbon screen 20, the second stop valve on the residual pipe 29 is periodically opened to discharge the sewage in the treatment chamber 2 for replacement, the cleaning door is periodically removed to remove the impurity particles on the first filter plate 6, and the details which are not described in detail in the present specification belong to the prior art known to those skilled in the art.
To sum up, the device for purifying and treating the phenol waste gas comprises a treatment cavity 2, a proper amount of clean water is injected into the treatment cavity 2, a proper amount of alkaline chemicals are added into the treatment cavity 2 by unscrewing an end cover on a liquid adding pipe 27, a second motor 26 is started to drive a stirring rod 25 to rotate, the clean water and the alkaline chemicals can be uniformly stirred and mixed by the stirring rod 25 to form alkaline solution, the phenol waste gas enters the treatment cavity 2 from an exhaust pipe 5, a water pump 7 and a first motor 16 are started to work, the alkaline solution in the treatment cavity 2 is pumped into a third water pipe 10 by the conveying of the water pump 7 and is atomized and sprayed out from two inclined nozzles 11 and two straight nozzles 12, the first motor 16 drives a second gear 17 to rotate, the second gear 17 drives a first gear 15 and a connecting pipe 14 to rotate, the third water pipe 10 and the two inclined nozzles 11 and the two straight nozzles 12 to uniformly spray atomized alkaline solution into the treatment cavity 2, can give and let atomizing alkali lye fully contact with the phenol type waste gas and react, the treatment purifying effect to phenol type waste gas has been improved, atomizing spun alkali lye water smoke contacts with phenol type waste gas and takes place neutralization reaction, dust particle in reactant and the phenol type waste gas drops on first filter 6, utilize first filter 6 to block reactant and dust particle and filter, circulation flow through water pump 7, can recycle alkaline solution, resources are saved, make alkaline solution can fully contact with phenol type waste gas and take place neutralization reaction, utilize second filter 22 to block dust impurity in the waste gas, avoid dust impurity to discharge from outlet duct 23, utilize water condensing plate 19 to condense water smoke in the waste gas, avoid waste gas to carry water smoke and discharge from outlet duct 23, utilize activated carbon otter board 20 to tiny particle dust in the waste gas, Residual chlorine, peculiar smell etc. adsorb the purification, and waste gas after the purification treatment is discharged from outlet duct 23, has improved the exhaust-gas treatment purifying effect, but regularly dismantles down case lid 18, is convenient for clean 20 surfaces of active carbon otter board, regularly beats open the second stop valve on the incomplete pipe 29, discharges the sewage in the treatment chamber 2, changes, regularly dismantles down the cleaning door, clears away the impurity granule on the first filter 6, the utility model relates to a rationally, the practicality is good, and is effectual to the purification treatment of waste gas, alkaline solution and phenol type waste gas's neutralization reaction are abundant, can use alkaline liquid circulation moreover, and it is abundant to utilize alkaline solution, have energy-conserving effect.
Claims (7)
1. The utility model provides a be used for phenol type exhaust purification processing apparatus, includes box (1), its characterized in that: the processing device is characterized in that a processing chamber (2), a fixed chamber (3) and a filter chamber (4) are arranged on a box body (1), the tops of the fixed chamber (3) and the filter chamber (4) are both formed by openings, a waste gas pipe (5) is fixedly arranged on one side of the box body (1), the waste gas pipe (5) is communicated with the interior of the processing chamber (2), a first filter plate (6) is fixedly arranged in the processing chamber (2), a water pump (7) is fixedly arranged on one side, far away from the waste gas pipe (5), of the box body (1), a first water pipe (8) is fixedly arranged at the suction end of the water pump (7), one end, far away from the water pump (7), of the first water pipe (8) extends into the processing chamber (2) and is positioned below the first filter plate (6), a second water pipe (9) is fixedly arranged at the discharge end of the water pump (7), a third water pipe (10) is arranged in the processing chamber (2), two inclined spray heads (11) and two straight spray heads, a first through hole (13) is formed in the inner wall of the bottom of the fixed cavity (3), a connecting pipe (14) is rotatably installed in the first through hole (13), the connecting pipe (14) is of a hollow structure, two ends of the connecting pipe (14) both extend out of the first through hole (13), the bottom end of the connecting pipe (14) is fixedly connected with the top of a third water pipe (10), the connecting pipe (14) is communicated with the third water pipe (10), one end, far away from the water pump (7), of the second water pipe (9) extends into the connecting pipe (14), a first gear (15) positioned in the fixed cavity (3) is fixedly sleeved on the connecting pipe (14), a first motor (16) is fixedly installed on the inner wall of the bottom of the fixed cavity (3), a second gear (17) is fixedly installed at the output end of the first motor (16), the second gear (17) is meshed with the first gear (15), a box cover (18) is fixedly installed at the top of the box body (1), fixed mounting has congeals water board (19) and active carbon otter board (20) in filter chamber (4), it is located the below of active carbon otter board (20) to congeal water board (19), rectangular hole (21) have been seted up on the bottom inner wall of filter chamber (4), fixed mounting has second filter (22) in rectangular hole (21), one side fixed mounting of box (1) has outlet duct (23) that is located exhaust pipe (5) top, outlet duct (23) and filter chamber (4) inside are linked together, second through-hole (24) have been seted up on one side inner wall of processing chamber (2), puddler (25) are installed to second through-hole (24) internal rotation, the both ends of puddler (25) all extend to in second through-hole (24), one side fixed mounting of box (1) has second motor (26), the output axle head of second motor (26) and the one end fixed connection of puddler (25).
2. The purification treatment device for phenol waste gas according to claim 1, characterized in that: the waste gas pipe (5) is far away from the box body (1), a liquid adding pipe (27) is fixedly installed on the box body (1), the liquid adding pipe (27) is communicated with the inside of the treatment cavity (2), and an end cover is installed on the top end of the liquid adding pipe (27) in a threaded mode.
3. The purification treatment device for phenol waste gas according to claim 1, characterized in that: a water supply pipe (28) positioned below the waste gas pipe (5) is fixedly installed on one side of the box body (1), a first stop valve is fixedly installed on the water supply pipe (28), and the water supply pipe (28) is communicated with the inside of the processing cavity (2).
4. The purification treatment device for phenol waste gas according to claim 1, characterized in that: one side of the box body (1) is fixedly provided with a residue discharge pipe (29) positioned below the water pump (7), the residue discharge pipe (29) is fixedly provided with a second stop valve, and the residue discharge pipe (29) is communicated with the inside of the treatment cavity (2).
5. The purification treatment device for phenol waste gas according to claim 1, characterized in that: the connecting pipe (14) is fixedly sleeved with a first bearing, the outer ring of the first bearing is fixedly connected with the inner wall of the first through hole (13), the second water pipe (9) is fixedly sleeved with a second bearing located in the connecting pipe (14), and the second bearing is fixedly connected with the inner wall of the connecting pipe (14).
6. The purification treatment device for phenol waste gas according to claim 1, characterized in that: and a third bearing is fixedly sleeved on the stirring rod (25), and the outer ring of the third bearing is fixedly connected with the inner wall of the second through hole (24).
7. The purification treatment device for phenol waste gas according to claim 1, characterized in that: the cleaning opening is formed in the inner wall of one side of the treatment cavity (2), a cleaning door is fixedly mounted on one side of the box body (1), the cleaning door is matched with the cleaning opening, a baffle is fixedly mounted on the inner wall of one side of the treatment cavity (2), the baffle is arranged in an inclined mode, and the baffle is located above the waste gas pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922341559.1U CN211384516U (en) | 2019-12-23 | 2019-12-23 | Be used for phenol type exhaust purification processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922341559.1U CN211384516U (en) | 2019-12-23 | 2019-12-23 | Be used for phenol type exhaust purification processing apparatus |
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| Publication Number | Publication Date |
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| CN211384516U true CN211384516U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922341559.1U Active CN211384516U (en) | 2019-12-23 | 2019-12-23 | Be used for phenol type exhaust purification processing apparatus |
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| CN (1) | CN211384516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082987A (en) * | 2021-05-21 | 2021-07-09 | 肖喜文 | Industrial boiler with protection device |
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2019
- 2019-12-23 CN CN201922341559.1U patent/CN211384516U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082987A (en) * | 2021-05-21 | 2021-07-09 | 肖喜文 | Industrial boiler with protection device |
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