CN212999264U - Innocent treatment device of phosphorus-containing tail gas of mud phosphorus recovery system - Google Patents
Innocent treatment device of phosphorus-containing tail gas of mud phosphorus recovery system Download PDFInfo
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- CN212999264U CN212999264U CN202021566428.XU CN202021566428U CN212999264U CN 212999264 U CN212999264 U CN 212999264U CN 202021566428 U CN202021566428 U CN 202021566428U CN 212999264 U CN212999264 U CN 212999264U
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Abstract
The utility model discloses a phosphorus-containing tail gas's of mud phosphorus recovery system innocent treatment device, including the phosphorus steaming pot that connects gradually, receive the phosphorus groove, atomizing pond and collection trachea, the phosphorus steaming pot includes the combustion chamber and evaporates the phosphorus room, be provided with the flue gas pipe on the lateral wall of combustion chamber, evaporate the phosphorus room, the top that receives phosphorus groove and atomizing pond all is provided with the blast pipe, be provided with communicating pipe on the collection trachea, steam generator has connected gradually on communicating pipe, alkali lye spray thrower and gas purification ware, the alkali lye spray thrower includes the casing, intake pipe and spray pipe, the interval has set gradually many jet-propelled pipes and multilayer packing layer from the bottom up in the casing, all be provided with an atomizing pipe in the casing of every jet-propelled pipe and every layer packing layer top, from the bottom up has set gradually the homogas ware in the gas purification ware, the defroster, silk screen layer and activated carbon. The utility model discloses convenient operation, the treatment effect is good, and safety ring protects, has apparent economic value and social value.
Description
Technical Field
The utility model relates to a phosphorus chemical industry technical field, concretely relates to phosphorus-containing tail gas's of mud phosphorus recovery system innocent treatment device.
Background
The phosphorus sludge is a byproduct formed in the production process of yellow phosphorus and formed by mixing phosphorus and impurities together, the main components of the phosphorus sludge comprise 5-40% of phosphorus, 1-5% of solid impurities and 20-80% of water, wherein the phosphorus is wrapped by solid particles with high adsorption capacity and forms an emulsion together with the water, and at a higher temperature, due to mutual wrapping effect of dipolar molecules of the phosphorus and the water, a solvated film protective layer is formed on the surface of the phosphorus after hydration of colloidal substances such as silicon, iron, calcium and the like and dust by a hydrated film, so that the yellow phosphorus particles are prevented from being contacted and condensed with each other, the phosphorus and other impurities are difficult to separate, and the recovery of the phosphorus in the phosphorus sludge is difficult.
At present, the recovery of phosphorus sludge mainly adopts a traditional dry distillation extraction recovery method, and the process flow is as follows: putting a certain amount of phosphorus sludge into a phosphorus steaming pot, then sealing the feeding hole and rotating the phosphorus steaming pot, heating the outside of the pot body to sublimate the element phosphorus in the pot, leading the sublimated phosphorus vapor to enter a phosphorus receiving groove, cooling the vapor to generate solid recovery from gas state, and refining the solid recovery to obtain a phosphorus finished product. This method has the following disadvantages: when each batch of steamed phosphorus is recovered, the residual slag in the phosphorus steaming pot is discharged, but phosphorus steam still exists in the phosphorus steaming pot, when the phosphorus steaming pot is opened to discharge slag, white smoke-phosphorus pentoxide harmful gas is generated after the residual phosphorus steam is contacted with air, the phosphorus-containing gas is mixed with water vapor in the atmosphere to generate phosphoric acid, the atmosphere is polluted, secondly, when smoke dust in the furnace rushes out of the furnace, a large amount of dense smoke dust rushes to the sky along with the light of bear fire, and the whole production site is completely covered by the smoke dust black fog, so that the health of workers can be threatened. Therefore, it is objectively needed to develop a harmless treatment device for phosphorus-containing tail gas of a sludge phosphorus recovery system, which is convenient to operate, good in treatment effect, safe and environment-friendly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a convenient operation, the treatment effect is good, the innocent treatment device of phosphorus-containing tail gas of mud phosphorus recovery system of safety ring guarantor.
The utility model aims at realizing the same, including the steamed phosphorus pot that connects gradually, receive the phosphorus groove, atomizing pond and collection trachea, the steamed phosphorus pot includes combustion chamber and steamed phosphorus room, be provided with the flue gas pipe on the lateral wall of combustion chamber, steam the phosphorus room, the top that receives phosphorus groove and atomizing pond all is provided with the blast pipe, be provided with aspiration pump and bleeder valve on flue gas pipe and the every blast pipe separately, the end of giving vent to anger of flue gas pipe and blast pipe all communicates with collection trachea, be provided with communicating pipe on the collection trachea, the last steam generator that has connected gradually of communicating pipe, alkali lye spray thrower and gas cleaner.
The alkali liquor sprayer comprises a shell, an air inlet pipe and water spray pipes, wherein the air inlet pipe and the water spray pipes are vertically arranged on the outer side of the shell, the air inlet pipe is communicated with a communicating pipe, a water suction pump and a water replenishing pipe are arranged on the water spray pipes, a plurality of air injection pipes and a plurality of layers of packing layers are sequentially arranged in the shell at intervals from bottom to top, the top of each air injection pipe is provided with a plurality of gas nozzles, the end parts of the air injection pipes penetrate through the shell and then are communicated with the air inlet pipe, each air injection pipe and the shell above each layer of packing layer are internally provided with an atomizing pipe, the bottom of each atomizing pipe is provided with a plurality of atomizing nozzles, the end parts of the atomizing pipes penetrate through the shell and then are communicated with the water spray pipes, the lower ends of the water spray pipes are communicated with the upper parts of the water storage tanks, the top, the gas purifier above the gas equalizer is internally provided with a demister, a wire mesh layer and an activated carbon layer from bottom to top in sequence, the gas purifier below the gas equalizer is provided with a water delivery pipe communicated with a water spray pipe, the water delivery pipe is provided with a water delivery valve, the bottom of the gas purifier is communicated with a water storage tank through a liquid discharge pipe, and the liquid discharge pipe is provided with a liquid discharge valve.
Furthermore, a gas mixer is arranged on a communicating pipe between the steam generator and the gas collecting pipe.
Furthermore, a heat exchanger is arranged on a communicating pipe between the steam generator and the alkali liquor sprayer.
Furthermore, a filter screen is arranged at the end part of the spray pipe connected with the water storage tank.
The utility model has the advantages that: when the phosphorus steaming pot finishes primary phosphorus steaming operation and slag needs to be discharged, or after the phosphorus steaming operation is finished, an air exhaust valve is opened, residual phosphorus steam in the phosphorus steaming pot, the phosphorus receiving groove and the atomizing pool is exhausted under the action of an air exhaust pump, so that negative pressure is formed in the phosphorus steaming pot, the phosphorus receiving groove and the atomizing pool, the phosphorus steam is exhausted, meanwhile, flue gas generated by fuel in a combustion chamber is exhausted and is conveyed to a steam generator through an air gathering pipe, the temperature of the phosphorus steam and the flue gas is greatly reduced while the heat in the phosphorus steam and the flue gas is utilized to produce steam, the subsequent tail gas is conveniently sprayed and purified, the phosphorus-containing tail gas with the reduced temperature enters an alkali liquor sprayer and reversely collides with the atomized alkali liquor to neutralize and absorb phosphorus-containing components in the tail gas, impurities in the tail gas are primarily removed, and the tail gas contacts with the alkali liquor again when the tail gas rises in a filler layer, so as to further remove the phosphorus-containing components in, and finally, introducing the tail gas into a gas purifier, washing the tail gas by alkali liquor, sequentially passing through a demister, a silk screen layer and an activated carbon layer, and removing moisture, impurities and peculiar smell in the tail gas in sequence and then discharging the tail gas. The utility model discloses can thoroughly stop remaining in evaporating the phosphorus pot, receive the phosphorus steam in phosphorus groove and atomizing pond and discharge into the atmosphere, absorb the flue gas that produces behind the fuel burning simultaneously, discharge after cooling, spraying and purifying, can realize the innocent treatment of phosphorus-containing tail gas, the heat production steam in still usable phosphorus-containing steam and the flue gas can realize the recycle of tail gas waste heat. The utility model discloses convenient operation, the treatment effect is good, and safety ring protects, has apparent economic value and social value.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-a phosphorus steaming pot, 2-a phosphorus receiving tank, 3-an atomizing pool, 4-an air converging pipe, 5-a combustion chamber, 6-a phosphorus steaming chamber, 7-a flue gas pipe, 8-an exhaust pipe, 9-an air pump, 10-an air suction valve, 11-a communicating pipe, 12-a steam generator, 13-a gas purifier, 14-a shell, 15-an air inlet pipe, 16-a water spray pipe, 17-a water suction pump, 18-a water replenishing pipe, 19-an air spray pipe, 20-a packing layer, 21-an atomizing pipe, 22-a water storage tank, 23-an air outlet pipe, 24-an air homogenizer, 25-an air conveying pipe, 26-a demister, 27-a silk screen layer, 28-an activated carbon layer, 29-a water conveying pipe, 30-a liquid discharge pipe, 31-a gas mixer and 32-a heat exchanger, 33-a filter screen.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited in any way, and any changes or improvements based on the present invention are all within the protection scope of the present invention.
As shown in figure 1, the utility model discloses a phosphorus steaming pot 1 that connects gradually, receive phosphorus groove 2, atomizing pond 3 and collection trachea 4, phosphorus steaming pot 1 includes combustion chamber 5 and phosphorus steaming chamber 6, in the time of the in-service use, in order to save coal resources, can use phosphorus stove tail gas as fuel, in addition, in order to reduce environmental pollution, also can use clean energy such as marsh gas as fuel, be provided with flue gas pipe 7 on the lateral wall of combustion chamber 5, phosphorus steaming chamber 6, receive the top of phosphorus groove 2 and atomizing pond 3 all to be provided with blast pipe 8, be provided with aspiration pump 9 and bleeder valve 10 on flue gas pipe 7 and every blast pipe 8 respectively, aspiration pump 9 and bleeder valve 10 on each pipe can be opened alone according to actual need and use or use simultaneously, the end of giving vent to anger of flue gas pipe 7 and blast pipe 8 all communicates with collection trachea 4, be provided with communicating pipe 11 on collection trachea 4, connect gradually steam generator 12, the communicating pipe, An alkali sprayer and a gas purifier 13.
The alkali liquor sprayer comprises a shell 14, an air inlet pipe 15 and water spray pipes 16, wherein the air inlet pipe 15 and the water spray pipes 16 are vertically arranged on the outer side of the shell 14, the air inlet pipe 15 is communicated with a communicating pipe 11, a water suction pump 17 and a water replenishing pipe 18 are arranged on each water spray pipe 16, a plurality of air injection pipes 19 and a plurality of layers of packing layers 20 are sequentially arranged in the shell 14 at intervals from bottom to top, a plurality of gas nozzles are arranged at the top of each air injection pipe 19, the end part of each air injection pipe 19 penetrates through the shell 14 and then is communicated with the air inlet pipe 15, an atomizing pipe 21 is arranged in each air injection pipe 19 and the shell 14 above each packing layer 20, a plurality of atomizing nozzles are arranged at the bottom of each atomizing pipe 21, the end part of each atomizing pipe 21 penetrates through the shell 14 and then is communicated with the water spray pipe 16, a water storage tank 22 is connected below the shell 14, the lower part in the gas purifier 13 is provided with a gas equalizer 24, the gas equalizer 24 is communicated with the gas outlet pipe 23 through a gas pipe 25, the gas purifier 13 above the gas equalizer 24 is sequentially provided with a demister 26, a silk screen layer 27 and an activated carbon layer 28 from bottom to top, the gas purifier 13 below the gas equalizer 24 is provided with a water pipe 29 communicated with the water spray pipe 16, the water pipe 29 is provided with a water delivery valve, the bottom of the gas purifier 13 is communicated with the water storage tank 22 through a liquid discharge pipe 30, and the liquid discharge pipe 30 is provided with a liquid discharge valve.
The utility model has the advantages that: when the phosphorus steaming pot 1 finishes primary phosphorus steaming operation and slag needs to be discharged, or after the phosphorus steaming operation is finished, the air exhaust valve 10 is opened, phosphorus steam remained in the phosphorus steaming pot 1, the phosphorus receiving groove 2 and the atomizing pool 3 is exhausted under the action of the air exhaust pump 9, so that negative pressure is formed in the phosphorus steaming pot 1, the phosphorus receiving groove 2 and the atomizing pool 3, the phosphorus steam is exhausted, meanwhile, smoke gas generated by fuel in the combustion chamber 5 is exhausted and conveyed to the steam generator 12 through the air collecting pipe 4, the temperature of the phosphorus steam and the smoke gas is greatly reduced while the steam is produced by utilizing the heat in the phosphorus steam and the smoke gas, the subsequent tail gas is conveniently sprayed and purified, the phosphorus-containing tail gas with the reduced temperature enters an alkali liquor sprayer and reversely collides with the atomized alkali liquor to neutralize and absorb phosphorus-containing components in the tail gas, impurities in the tail gas are primarily removed through the packing layer 20, and the tail gas is contacted with the alkali liquor again when the tail gas rises in the packing layer 20, further removing phosphorus-containing components in the tail gas, finally introducing the tail gas into the gas purifier 13, washing the tail gas by alkali liquor, sequentially passing through the demister 26, the silk screen layer 27 and the activated carbon layer 28, removing moisture, impurities and peculiar smell in the tail gas in sequence, and then discharging the tail gas. The utility model discloses can thoroughly stop remaining in evaporating phosphorus pot 1, receive the phosphorus steam in phosphorus groove 2 and atomizing pond 3 and discharge into the atmosphere, absorb the flue gas that produces behind the fuel burning simultaneously, discharge after cooling, spraying and purifying, can realize the innocent treatment of phosphorus-containing tail gas, the heat production steam in still usable phosphorus-containing steam and the flue gas can realize the recycle of tail gas waste heat.
Be provided with gas mixer 31 on communicating pipe 11 between steam generator 12 and the gas collecting pipe 4, mixed tail gas contains the flue gas after the fuel burning, still including evaporating phosphorus pot 1, receiving remaining phosphorus steam in phosphorus groove 2 and the atomizing pond 3, various gas temperature have certain difference, can mix these gases through gas mixer 31, and the stable output of steam in the steam generator 12 of being convenient for is the temperature of average gas.
The heat exchanger 32 is arranged on the communicating pipe 11 between the steam generator 12 and the alkali liquor sprayer, the mixed tail gas after passing through the steam generator 12 still contains certain heat, the heat can be absorbed through the heat exchanger 32, and meanwhile, the temperature of the mixed tail gas is reduced again, so that the subsequent tail gas treatment is facilitated.
The end of the spray pipe 16 connected with the water storage tank 22 is provided with a filter screen 33, the spray pipe 16 is used for conveying the clarified alkali liquor on the upper layer of the liquid in the water storage tank 22 to the alkali liquor sprayer for reuse, but the filter screen 33 can prevent the yellow phosphorus from returning to the alkali liquor sprayer through the spray pipe 16 because the solid yellow phosphorus is precipitated in the water storage tank 22.
Claims (4)
1. The utility model provides a phosphorus-containing tail gas's of phosphorus recovery system innocent treatment device which characterized in that: the phosphorus steaming device comprises a phosphorus steaming pot (1), a phosphorus receiving groove (2), an atomizing pool (3) and a gas collecting pipe (4) which are sequentially connected, wherein the phosphorus steaming pot (1) comprises a combustion chamber (5) and a phosphorus steaming chamber (6), a smoke pipe (7) is arranged on the side wall of the combustion chamber (5), exhaust pipes (8) are respectively arranged at the tops of the phosphorus steaming chamber (6), the phosphorus receiving groove (2) and the atomizing pool (3), the smoke pipe (7) and each exhaust pipe (8) are respectively provided with an air suction pump (9) and an air suction valve (10), the gas outlet ends of the smoke pipe (7) and the exhaust pipes (8) are respectively communicated with the gas collecting pipe (4), a communicating pipe (11) is arranged on the gas collecting pipe (4), and a steam generator (12), an alkali liquor sprayer and a gas purifier (13) are sequentially connected onto the communicating pipe (11); the alkali liquor sprayer comprises a shell (14), an air inlet pipe (15) and a water spraying pipe (16), wherein the air inlet pipe (15) and the water spraying pipe (16) are vertically arranged on the outer side of the shell (14), the air inlet pipe (15) is communicated with a communicating pipe (11), a water suction pump (17) and a water replenishing pipe (18) are arranged on the water spraying pipe (16), a plurality of air injection pipes (19) and a plurality of layers of packing layers (20) are sequentially arranged in the shell (14) from bottom to top at intervals, a plurality of gas nozzles are arranged at the top of the air injection pipes (19), the end parts of the air injection pipes (19) penetrate through the shell (14) and are communicated with the air inlet pipe (15), an atomizing pipe (21) is arranged in the shell (14) above each air injection pipe (19) and each layer of packing layer (20), a plurality of atomizing nozzles are arranged at the bottom of each atomizing pipe (21), the end parts of the atomizing pipes (21) penetrate through the shell (, a water storage tank (22) is connected below the shell (14), the lower end of the spray pipe (16) is communicated with the upper part of the water storage tank (22), an air outlet pipe (23) is arranged at the top of the shell (14), an air equalizer (24) is arranged at the lower part in the gas purifier (13), the air equalizer (24) is communicated with the air outlet pipe (23) through an air conveying pipe (25), a demister (26), a wire mesh layer (27) and an activated carbon layer (28) are sequentially arranged in the gas purifier (13) above the gas equalizer (24) from bottom to top, a water conveying pipe (29) communicated with the water spray pipe (16) is arranged on the gas purifier (13) below the gas equalizer (24), a water conveying valve is arranged on the water conveying pipe (29), the bottom of the gas purifier (13) is communicated with the water storage tank (22) through a liquid discharge pipe (30), and a liquid discharge valve is arranged on the liquid discharge pipe (30).
2. The device for the harmless treatment of the phosphorus-containing tail gas of the sludge phosphorus recovery system according to claim 1, wherein a gas mixer (31) is arranged on a communicating pipe (11) between the steam generator (12) and the gas collecting pipe (4).
3. The device for the harmless treatment of the phosphorus-containing tail gas of the phosphorus and sludge recovery system according to claim 1, wherein a heat exchanger (32) is arranged on a communicating pipe (11) between the steam generator (12) and the alkali liquor sprayer.
4. The apparatus for the harmless treatment of phosphorus-containing tail gas from a phosphorus sludge recovery system according to claim 1, wherein a filter screen (33) is provided at an end of the spray pipe (16) connected to the water storage tank (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566428.XU CN212999264U (en) | 2020-08-01 | 2020-08-01 | Innocent treatment device of phosphorus-containing tail gas of mud phosphorus recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566428.XU CN212999264U (en) | 2020-08-01 | 2020-08-01 | Innocent treatment device of phosphorus-containing tail gas of mud phosphorus recovery system |
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| Publication Number | Publication Date |
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| CN212999264U true CN212999264U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021566428.XU Active CN212999264U (en) | 2020-08-01 | 2020-08-01 | Innocent treatment device of phosphorus-containing tail gas of mud phosphorus recovery system |
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| Country | Link |
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| CN (1) | CN212999264U (en) |
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- 2020-08-01 CN CN202021566428.XU patent/CN212999264U/en active Active
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| CP01 | Change in the name or title of a patent holder |
Address after: 655102 Liao Jia Tian, Jitou village, Malong District, Qujing City, Yunnan Province Patentee after: Qujing Yunhua Phosphorus Chemical Co.,Ltd. Address before: 655102 Liao Jia Tian, Jitou village, Malong District, Qujing City, Yunnan Province Patentee before: Yunnan Malong Yunhua Phosphorus Chemical Co.,Ltd. |