CN214416052U - Oxynitride exhaust gas treatment device - Google Patents
Oxynitride exhaust gas treatment device Download PDFInfo
- Publication number
- CN214416052U CN214416052U CN202120235273.XU CN202120235273U CN214416052U CN 214416052 U CN214416052 U CN 214416052U CN 202120235273 U CN202120235273 U CN 202120235273U CN 214416052 U CN214416052 U CN 214416052U
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- CN
- China
- Prior art keywords
- liquid
- washing tower
- stage washing
- scrubbing tower
- treatment device
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 238000001179 sorption measurement Methods 0.000 claims abstract description 23
- 239000003814 drug Substances 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 239000002912 waste gas Substances 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 24
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 19
- 238000005406 washing Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 3
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 claims description 3
- 238000005201 scrubbing Methods 0.000 abstract description 20
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 15
- 239000004202 carbamide Substances 0.000 abstract description 15
- 239000007864 aqueous solution Substances 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 229910001868 water Inorganic materials 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010891 toxic waste Substances 0.000 description 1
Images
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to an oxynitrides exhaust treatment device, it includes liquid adsorption equipment, first order scrubbing tower, second level scrubbing tower and the waste gas adsorption tower that sets gradually along the air current direction, first order scrubbing tower the inside reaction layer that all is equipped with of second level scrubbing tower, the corresponding spray assembly that is equipped with in reaction layer top, spray assembly stores up the medicine through first liquid feeding pipe and irritates with one and is connected, store up the medicine and irritate interior urea aqueous solution, it is equipped with constant temperature equipment to store up the medicine and irritate, first order scrubbing tower, second level scrubbing tower share same storage medicine and irritate, all be equipped with first circulating pump on the first liquid feeding pipe. The utility model discloses a set up constant temperature equipment, the temperature of the urea aqueous solution of being convenient for control is at 40-60 ℃ within range, and urea aqueous solution reacts with oxynitrides, the condition is invariable, and reaction efficiency is high, purifies thoroughly.
Description
Technical Field
The utility model relates to an exhaust-gas treatment equipment field, in particular to oxynitrides exhaust treatment device.
Background
Oxynitride is yellow smoke with high toxicity, is discharged into the atmosphere through a smoke pipe without purification treatment to form striking brown yellow smoke, is commonly called 'yellow dragon', has the greatest difficulty in treating various waste gases, and is an extremely violent pollution to the atmosphere. If the effective treatment control is not obtained, the harm to the health of operators and the environment of a factory is great, and the harm to the life and the ecological environment of surrounding residents is caused by the drift and diffusion of wind.
Chinese patent publication No. CN111437696A discloses a NOx-containing exhaust gas treatment system, comprising: the absorption tower is used for absorbing NOx in input waste gas and outputting tail gas and dilute nitric acid discharged by the absorption tower, and part or all of absorption liquid adopted by the absorption tower comes from input process water; and the temperature swing adsorption device is used for adsorbing NOx in the tail gas discharged by the tower and outputting purified gas reaching the standard, and desorbing the adsorbed NOx by adopting regenerated gas and outputting desorbed gas for returning to the absorption tower. But has the disadvantages that the nitrogen oxide purification treatment is not complete, and part of toxic waste gas is still discharged into the atmosphere, thus causing harm to the ecological environment.
Therefore, it is desirable to provide an exhaust treatment device for nitrogen oxide compounds, which solves the above problems of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a oxynitrides exhaust treatment device to the oxynitrides purification treatment who solves prior art existence is not thorough, still has partial poisonous waste gas to discharge in the atmosphere, causes the problem of harm to ecological environment.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an oxynitrides exhaust treatment device, its includes liquid adsorption device, first order scrubbing tower, second level scrubbing tower and the waste gas adsorption tower that sets gradually along the air current direction, first order scrubbing tower the inside reaction layer that all is equipped with of second level scrubbing tower, the corresponding spray assembly that is equipped with in reaction layer top, spray assembly fills with a storage medicine through first liquid feeding pipe and is connected, store up the medicine and fill the interior urea aqueous solution that is, it is equipped with constant temperature equipment in filling up to store up the medicine, first order scrubbing tower, the same storage medicine of second level scrubbing tower sharing are filled, all be equipped with first circulating pump on the first liquid feeding pipe.
The constant temperature device comprises a heating plate, a sensor and a control module.
The constant temperature device also comprises a heat insulation layer arranged on the inner wall of the medicine storage tank.
The first-stage washing tower and the second-stage washing tower are respectively provided with a liquid storage area at the bottom, a liquid outlet is formed in the side of the liquid storage area and connected with a transfer liquid tank through a liquid discharge pipe, the transfer liquid tank is connected with the liquid adsorption device through a second liquid feeding pipe, and a second circulating pump is arranged on the second liquid feeding pipe.
The liquid adsorption device is connected with the first-stage washing tower through a gas conveying pipeline, a first fan is arranged on the gas conveying pipeline, and a second fan is further arranged at the gas inlet end of the liquid adsorption device.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the constant temperature device is arranged, so that the temperature of the urea aqueous solution is conveniently controlled within the range of 40-60 ℃, nitrogen, carbon dioxide and water are generated after the urea aqueous solution reacts with the oxynitride, the reaction condition is constant, the reaction efficiency is high, and the purification is thorough;
2. through setting up the heat preservation, the hot plate heating finish can, need not to last to the hot plate power supply, reach the energy saving purpose.
Drawings
FIG. 1 is a schematic structural view of a nitrogen oxide waste gas treatment device of the present invention;
FIG. 2 is a schematic view of the medicine storage tank of FIG. 1;
FIG. 3 is a front view of the liquid adsorption device of FIG. 1;
fig. 4 is a left side view of the liquid adsorption device of fig. 3.
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.
Please refer to fig. 1 to 4, the utility model relates to an oxynitride exhaust treatment device, it includes the liquid adsorption device 10 that sets gradually along the air current direction, first order scrubbing tower 20, second level scrubbing tower 30 and waste gas adsorption tower 40, first order scrubbing tower 20, second level scrubbing tower 30 is inside all to be equipped with reaction layer 21, reaction layer 21 top is corresponding to be equipped with spray assembly 22, spray assembly 22 is connected with a storage medicine through first filling tube 50 and irritates 60, be urea aqueous solution in the storage medicine irritates 60, be equipped with constant temperature equipment 61 in the storage medicine irritates 60, first order scrubbing tower 20, same storage medicine of second level scrubbing tower 30 sharing is irritated 60, first order scrubbing tower 20, all be equipped with first circulating pump 70 on the first filling tube 50 of second level scrubbing tower 30.
Referring to fig. 2, the thermostat 61 includes a heating plate 611, a sensor 612 and a control module (not shown), in this embodiment, the temperature of the urea aqueous solution is controlled to be 40-60 ℃, when the sensor 612 detects that the temperature of the urea aqueous solution is lower than 40 ℃, the control module transmits a signal, and the heating plate 611 heats the urea aqueous solution to 60 ℃ and stops heating.
Referring to fig. 2, the thermostat 61 further includes an insulating layer 614 disposed on an inner wall of the drug storage tank 60, and after the heating plate 611 stops heating, the urea aqueous solution is insulated by the insulating layer 614, and when the sensor 612 detects that the temperature of the urea aqueous solution is lower than 40 ℃, the heating plate 611 is heated again. The constant temperature device 61 is arranged, so that the temperature of the urea aqueous solution is conveniently controlled within the range of 40-60 ℃, nitrogen, carbon dioxide and water are generated after the urea aqueous solution reacts with the oxynitride, the reaction condition is constant, the reaction efficiency is high, and the purification is thorough; by arranging the heat insulation layer 614, the heating plate 611 is heated without continuously supplying power to the heating plate 611, so that the purpose of saving energy is achieved.
Referring to fig. 1, the bottoms of the first-stage washing tower 20 and the second-stage washing tower 30 are both provided with a liquid storage area 23, the side portion of the liquid storage area 23 is provided with a liquid outlet, the liquid outlet is connected with a transfer liquid tank 25 through a liquid outlet pipe 24, the transfer liquid tank 25 is connected with the liquid adsorption device 10 through a second liquid adding pipe 26, and the second liquid adding pipe 26 is provided with a second circulating pump 261. The urea water solution reacts with the oxynitride to generate nitrogen, carbon dioxide and water, the liquid in the liquid storage area 23 contains urea and is discharged into the transfer liquid tank 25, the transfer liquid tank 25 supplies liquid to the liquid adsorption device 10, and the waste gas is primarily washed, so that the aim of recycling the urea water solution is fulfilled.
The liquid adsorption device 10 and the first-stage washing tower 20 are connected through a gas conveying pipeline 80, a first fan 81 is arranged on the gas conveying pipeline 80, gas of the liquid adsorption device 10 is conveniently led into the first-stage washing tower 20, and a second fan 90 is further arranged at the gas inlet end of the liquid adsorption device 10.
Referring to fig. 3, the liquid adsorbing device 10 includes a tank 11, a first fixing shaft 12 transversely disposed in the tank 11, and a first blade assembly 13 rotatably disposed on the first fixing shaft 12, a funnel 111 is disposed at an upper end of the tank 11, the funnel 111 is externally connected with a water inlet pipe 112, a water outlet at a lower end of the funnel 111 is opposite to an outer end of the first blade assembly 13, liquid flowing out of the funnel 111 through the water outlet falls on the first blade assembly 13 and drives the first blade assembly 13 to rotate, referring to fig. 1, the tank 11 is further provided with an air inlet 101 and an air outlet 102, the air inlet 101 is disposed at a lower end of the tank 11, and the air outlet 102 is disposed at an upper end of the tank.
Referring to fig. 4, the first blade assembly 13 includes a plurality of axially arranged blades, the blades are fixed on a first rotating sleeve 131, and the first rotating sleeve 131 is sleeved on the first fixed shaft 12.
Referring to fig. 3 and 4, the liquid adsorption apparatus 10 further includes a second fixed shaft 14 disposed in the tank 11 and parallel to the first fixed shaft 12, and a second vane assembly 15 rotatably disposed on the second fixed shaft 14, wherein the second fixed shaft 14 is located below the first fixed shaft 12, and the second vane assembly 15 is located at a side of the first vane assembly 13.
The first stationary shaft 12, the second stationary shaft 14, the first vane assembly 13 and the second vane assembly 15 are made of corrosion-resistant materials.
Referring to fig. 3, a driving wheel 1311 is disposed on the first rotating sleeve 131, the second blade assembly 15 includes a plurality of blades axially arranged, the blades are fixed on a second rotating sleeve 151, the second rotating sleeve 151 is sleeved on the second fixed shaft 14, a driven wheel 1511 is disposed on the second rotating sleeve 151, and the driving wheel 1311 and the driven wheel 1511 are connected by a transmission belt 16.
Referring to fig. 4, a water level detection device 17 is further disposed in the tank 11, the water level detection device is in the prior art, a liquid outlet 103 is further disposed at the lower end of the tank 11, the liquid outlet 103 is connected with a drainage pipeline 104, and an electromagnetic valve 105 is disposed on the drainage pipeline 104. When the water level detection device detects that the water level in the tank body 11 exceeds the preset value, a signal is transmitted to the electromagnetic valve 105, the electronic valve 105 is opened to automatically discharge liquid, the second blade assembly 15 is prevented from being submerged due to overhigh water level, and resistance is prevented from being generated on the second blade assembly 15.
During operation, first blade subassembly 13 rotates along with first rotating sleeve 131, and action wheel 1311 passes through conveyer belt 16 and drives from the rotation of driving wheel 1511, and then realizes that second blade subassembly 15 and first blade subassembly 13 rotate in step, and on the liquid that flows down by first blade subassembly 13 arrived second blade subassembly 15, liquid flowed along with first blade subassembly 13, second blade subassembly 15, forms the cascade, increases liquid and oxynitride waste gas area of contact, improves purification efficiency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An oxynitride exhaust gas treatment device, characterized in that: the device comprises a liquid adsorption device, a first-stage washing tower, a second-stage washing tower and a waste gas adsorption tower which are sequentially arranged along the airflow direction, wherein a reaction layer is arranged inside the first-stage washing tower and the second-stage washing tower, a spray assembly is correspondingly arranged above the reaction layer and connected with a medicine storage tank through a first liquid adding pipe, urea water solution is arranged in the medicine storage tank, a constant temperature device is arranged in the medicine storage tank, the first-stage washing tower and the second-stage washing tower share the same medicine storage tank, and a first circulating pump is arranged on the first liquid adding pipe.
2. A nitrogen oxide exhaust gas treatment device according to claim 1, wherein: the constant temperature device comprises a heating plate, a sensor and a control module.
3. A nitrogen oxide exhaust gas treatment device according to claim 2, characterized in that: the constant temperature device also comprises a heat insulation layer arranged on the inner wall of the medicine storage tank.
4. A nitrogen oxide exhaust gas treatment device according to claim 1, wherein: the first-stage washing tower and the second-stage washing tower are respectively provided with a liquid storage area at the bottom, a liquid outlet is formed in the side of the liquid storage area and connected with a transfer liquid tank through a liquid discharge pipe, the transfer liquid tank is connected with the liquid adsorption device through a second liquid feeding pipe, and a second circulating pump is arranged on the second liquid feeding pipe.
5. A nitrogen oxide exhaust gas treatment device according to claim 1, wherein: the liquid adsorption device is connected with the first-stage washing tower through a gas conveying pipeline, a first fan is arranged on the gas conveying pipeline, and a second fan is further arranged at the gas inlet end of the liquid adsorption device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120235273.XU CN214416052U (en) | 2021-01-27 | 2021-01-27 | Oxynitride exhaust gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120235273.XU CN214416052U (en) | 2021-01-27 | 2021-01-27 | Oxynitride exhaust gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214416052U true CN214416052U (en) | 2021-10-19 |
Family
ID=78057606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120235273.XU Expired - Fee Related CN214416052U (en) | 2021-01-27 | 2021-01-27 | Oxynitride exhaust gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214416052U (en) |
-
2021
- 2021-01-27 CN CN202120235273.XU patent/CN214416052U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211019 |