CN215049425U - High ammonium salt waste liquid spray drying processing system who contains organic matter - Google Patents
High ammonium salt waste liquid spray drying processing system who contains organic matter Download PDFInfo
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- CN215049425U CN215049425U CN202120582840.9U CN202120582840U CN215049425U CN 215049425 U CN215049425 U CN 215049425U CN 202120582840 U CN202120582840 U CN 202120582840U CN 215049425 U CN215049425 U CN 215049425U
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- 239000007788 liquid Substances 0.000 title claims abstract description 121
- 239000002699 waste material Substances 0.000 title claims abstract description 119
- 238000001694 spray drying Methods 0.000 title claims abstract description 49
- 150000003863 ammonium salts Chemical class 0.000 title claims abstract description 19
- 239000005416 organic matter Substances 0.000 title claims abstract description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 282
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 122
- 230000003647 oxidation Effects 0.000 claims abstract description 90
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 90
- 230000007246 mechanism Effects 0.000 claims abstract description 88
- 238000001784 detoxification Methods 0.000 claims abstract description 66
- 238000001704 evaporation Methods 0.000 claims abstract description 9
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 49
- 238000002156 mixing Methods 0.000 claims description 45
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 40
- 239000007921 spray Substances 0.000 claims description 34
- 238000006386 neutralization reaction Methods 0.000 claims description 33
- 238000001802 infusion Methods 0.000 claims description 20
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 17
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 17
- 238000005507 spraying Methods 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 12
- 238000010979 pH adjustment Methods 0.000 claims description 7
- 239000012266 salt solution Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 15
- 231100000331 toxic Toxicity 0.000 abstract description 9
- 230000002588 toxic effect Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 229960002163 hydrogen peroxide Drugs 0.000 description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000001590 oxidative effect Effects 0.000 description 7
- 239000007800 oxidant agent Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 231100000419 toxicity Toxicity 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000002920 hazardous waste Substances 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- 239000012528 membrane Substances 0.000 description 1
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model relates to an ammonium salt waste liquid spray drying processing system of high organic matter that contains uses in the field of ammonium chloride waste liquid treatment, and it includes pretreatment mechanism, oxidation detoxification mechanism and spray drying processing mechanism, pretreatment mechanism's output with the input of oxidation detoxification mechanism is connected, the output of oxidation detoxification mechanism with the input of spray drying processing mechanism is connected, pretreatment mechanism is used for carrying out the homogeneity hybrid processing to ammonium chloride salt waste salt, oxidation detoxification mechanism is used for carrying out the oxidation detoxification processing to the ammonium chloride waste liquid after the homogeneity mixes, spray drying processing mechanism is arranged in evaporating the processing of detoxification again to the moisture in the ammonium chloride waste liquid after the detoxification, obtains dry ammonium chloride product. The method has the effect of completely removing toxic and harmful substances in the ammonium chloride salt product.
Description
Technical Field
The application relates to the field of ammonium chloride waste liquid treatment, in particular to a spray drying treatment system for ammonium salt waste liquid with high organic content.
Background
The high-salt organic waste liquid generally refers to waste liquid with COD of more than 10,000mg/L and salt content of more than 20,000mg/L, mainly comes from concentrated mother liquid and membrane separation working sections of fine chemical industries such as pesticide, medicine, coal chemical industry and the like, and belongs to organic industrial waste liquid which is extremely difficult to treat due to the fact that the high-salt organic waste liquid contains various toxic and harmful substances and has complex components. With the continuous improvement of the social requirement on environmental protection, the resource utilization of the hazardous waste salt is more and more concerned by people; the resource utilization of the hazardous waste salt can not only eliminate the pollution to the environment, but also fully utilize the precious salt resources and realize the economic recycling.
The main component of the organic waste liquid is ammonium chloride salt waste liquid. At present, a common treatment technical means for ammonium chloride waste liquid is a high-temperature heat treatment technology, i.e. under a high-temperature condition, water in the ammonium chloride waste liquid is evaporated to remove part of toxic and harmful substances, and a dry ammonium chloride product is obtained, so that resource utilization of hazardous waste salt is realized. At present, the high-temperature heat treatment process of the ammonium chloride waste liquid is carried out in a thermal device such as an incinerator, a rotary kiln, a pyrolysis furnace, a melting furnace and the like.
In view of the above-mentioned related technologies, the inventor believes that the toxic and harmful substances are removed only by a method of evaporating water in the ammonium chloride waste liquid at a high temperature to obtain a dry ammonium chloride product, and the defect that the toxic and harmful substances in the ammonium chloride product cannot be removed exists.
SUMMERY OF THE UTILITY MODEL
In order to improve the unable problem of removing completely of poisonous harmful substance in the ammonium chloride salt product, this application provides a high ammonium salt waste liquid spray drying processing system who contains organic matter.
The application provides a high ammonium salt waste liquid spray drying processing system who contains organic matter adopts following technical scheme:
the utility model provides a high ammonium salt waste liquid spray drying processing system who contains organic matter, includes pretreatment mechanism, oxidation detoxification mechanism and spray drying processing mechanism, pretreatment mechanism's output with oxidation detoxification mechanism's input is connected, oxidation detoxification mechanism's output with spray drying processing mechanism's input is connected, pretreatment mechanism is used for carrying out the homogeneous mixing processing to ammonium chloride salt waste salt, oxidation detoxification mechanism is used for carrying out the oxidation detoxification processing to the ammonium chloride salt waste liquid after the homogeneous mixing, spray drying processing mechanism is used for evaporating the moisture in the ammonium chloride salt waste liquid after the detoxification and detoxifies again, obtains dry ammonium chloride salt product.
By adopting the technical scheme, the ammonium chloride waste liquid is subjected to homogeneous mixing treatment by the pretreatment mechanism to prepare for the subsequent working section, so that the ammonium chloride waste liquid is more uniform and is not easy to precipitate, and meanwhile, the pretreatment mechanism also has a buffering effect on the subsequent working section, so that the ammonium chloride waste liquid has less impact influence on the subsequent working section; the oxidizing and detoxifying mechanism is used for oxidizing and detoxifying the ammonium chloride waste liquid after the homogeneous mixing, so that toxic and harmful substances in the ammonium chloride waste liquid can be effectively removed; the spray drying treatment mechanism evaporates the water in the ammonium chloride waste liquid after oxidation and detoxification and then detoxifies the water to finally obtain a dry ammonium chloride product, thereby ensuring that toxic and harmful substances in the final ammonium chloride product can be completely removed.
Optionally, the pretreatment mechanism comprises an ammonium chloride salt solution storage tank and a homogeneous mixing tank, an output end of the ammonium chloride salt solution storage tank is connected with an input end of the homogeneous mixing tank, and an output end of the homogeneous mixing tank is connected with an input end of the oxidation detoxification mechanism;
and conveying the ammonium chloride waste liquid in the ammonium chloride solution storage tank to the homogeneous mixing tank through a first infusion pump, and conveying the ammonium chloride waste liquid after the homogeneous mixing in the homogeneous mixing tank to the oxidation detoxification mechanism through a second infusion pump.
Through adopting above-mentioned technical scheme, the ammonium chloride salt solution holding vessel is used as the ammonium chloride salt waste liquid to store and uses, can carry the ammonium chloride salt waste liquid in the ammonium chloride salt solution holding vessel to the homogeneity blending tank through transfer pump one, carries out the homogeneity mixing processing to the ammonium chloride salt waste liquid through the homogeneity blending tank for the ammonium chloride salt waste liquid is more even and difficult emergence is depositd, and the ammonium chloride salt waste liquid after the homogeneity mixing processing is carried to oxidation detoxification mechanism through transfer pump two again and is carried out oxidation detoxification and handle.
Optionally, the oxidation detoxification mechanism comprises a PH adjusting tank, a UV ultraviolet oxidation device and a neutralization reaction tank, an input end of the PH adjusting tank is connected with an output end of the homogeneous mixing tank, an output end of the PH adjusting tank is connected with an input end of the UV ultraviolet oxidation device, an output end of the UV ultraviolet oxidation device is connected with an input end of the neutralization reaction tank, and an output end of the neutralization reaction tank is connected with an input end of the spray drying treatment mechanism;
ammonium chloride waste liquid in the PH adjustment tank passes through the high-pressure pump and delivers to UV ultraviolet oxidation equipment, ammonium chloride waste liquid after the oxidation detoxification in the UV ultraviolet oxidation equipment passes through transfer pump three and delivers to neutralization reaction jar, ammonium chloride waste liquid in the neutralization reaction jar passes through transfer pump four and delivers to spray drying processing mechanism.
By adopting the technical scheme, the ammonium chloride waste liquid after the homogeneous mixing treatment is conveyed to a PH adjusting tank through a second infusion pump, the PH value of the ammonium chloride waste liquid is adjusted to 2 through the PH adjusting tank, the ammonium chloride waste liquid in the PH adjusting tank is conveyed to UV ultraviolet oxidation equipment through a high-pressure pump, the ammonium chloride waste liquid is subjected to oxidation and detoxification treatment through the UV ultraviolet oxidation equipment, macromolecular nondegradable organic matters in the ammonium chloride waste liquid are converted into degradable micromolecular substances, even CO2 and H2O are directly generated, so that the toxicity of the ammonium chloride waste liquid is removed, the ammonium chloride waste liquid after the oxidation and detoxification treatment is conveyed to a neutralization reaction tank through a third infusion pump, the PH value of the ammonium chloride waste liquid is adjusted to 7 through the neutralization reaction tank, the ammonium chloride waste liquid in the neutralization reaction tank is conveyed to a spray drying treatment mechanism through a fourth infusion pump to be subjected to water evaporation and detoxification treatment, finally obtaining the dry ammonium chloride salt product.
Optionally, the oxidation detoxification mechanism still includes hydrochloric acid storage tank and aqueous ammonia storage tank, the output of hydrochloric acid storage tank is connected the input of PH adjustment tank, hydrochloric acid solution in the hydrochloric acid storage tank passes through the hydrochloric acid pump and delivers to in the PH adjustment tank, the output of aqueous ammonia storage tank is connected the input of neutralization reaction jar, aqueous ammonia in the aqueous ammonia storage tank passes through the ammonia pump and delivers to neutralization reaction jar.
Through adopting above-mentioned technical scheme, hydrochloric acid solution of storing in the hydrochloric acid storage tank passes through the hydrochloric acid pump and delivers to the PH adjustment tank in, adjusts the PH value of the ammonium chloride salt waste liquid in the PH adjustment tank, and the aqueous ammonia solution of storing in the aqueous ammonia storage tank passes through the ammonia water pump and carries to the neutralization reaction jar, and the PH value of the ammonium chloride salt waste liquid in the neutralization reaction jar carries out the callback.
Optionally, the oxidation detoxification mechanism still includes the hydrogen peroxide solution storage tank, the output of hydrogen peroxide solution storage tank is connected the input of UV ultraviolet oxidation equipment, the hydrogen peroxide solution in the hydrogen peroxide solution storage tank passes through the hydrogen peroxide solution pump and transports to UV ultraviolet oxidation equipment.
By adopting the technical scheme, hydrogen peroxide stored in the hydrogen peroxide storage tank is conveyed to the UV ultraviolet oxidation equipment through the hydrogen peroxide pump, the hydrogen peroxide can promote ammonium chloride waste liquid to be oxidized and detoxified as an oxidant, the oxidability of the hydrogen peroxide after being catalyzed by ultraviolet light in the UV ultraviolet oxidation equipment is stronger, macromolecular organic pollutants which are difficult to degrade in the ammonium chloride waste liquid can be subjected to a series of ring opening, bond breaking, addition, substitution and electronic transfer, macromolecular organic matters which are difficult to degrade in the ammonium chloride waste liquid are finally converted into micromolecular substances which are easy to degrade, even CO2 and H2O are directly generated, and therefore the toxicity of the ammonium chloride waste liquid is removed.
Optionally, spray drying processing mechanism includes the spray tower, the input of spray tower is connected the output of neutralization reaction jar, the rotatory atomizer of the input installation of spray tower atomizes the ammonium chloride waste liquid after the detoxification of oxidation into tiny droplet and spouts to the spray tower in, the hot-air inlet at spray tower top connects the hot-blast furnace, set up the hot-air export on the ash bucket lateral wall of spray tower bottom, the output setting of spray tower is in the ash bucket bottom.
By adopting the technical scheme, the ammonium chloride waste liquid after being oxidized and detoxified is atomized into fine droplets through the rotary atomizer at the input end of the spray tower and is sprayed into the spray tower, the specific surface area of the ammonium chloride waste liquid in the spray tower can be increased, meanwhile, hot air is provided by the hot air furnace towards the hot air inlet at the top of the spray tower, the ammonium chloride droplets are fully contacted with the hot air, the hot air evaporates moisture in the ammonium chloride droplets and then detoxifies the ammonium chloride droplets, and finally a dry ammonium chloride product is obtained.
Optionally, the spray drying treatment mechanism further comprises a double-layer pneumatic gate valve and a crusher, the input end of the double-layer pneumatic gate valve is connected with the output end of the spray tower, and the output end of the double-layer pneumatic gate valve is connected with the input end of the crusher.
By adopting the technical scheme, after being discharged from the output end of the spray tower, the dried ammonium chloride product enters the crusher through the double-layer pneumatic gate valve, and the crushed ammonium chloride product can be partially crushed by the crusher and then packaged, so that the quality of the ammonium chloride product can be improved; the double-layer pneumatic gate valve is used for controlling the conveying amount of ammonium chloride salt products and cutting off the conveying of the ammonium chloride salt products.
Optionally, an electric tracing band and an ash bucket vibrator are arranged on the outer side wall of the ash bucket at the bottom of the spraying tower.
Through adopting above-mentioned technical scheme, set up electric tracing band and ash bucket rapping device, reducible condition that leads to ammonium chloride product to adhere to ash bucket inner wall because of the temperature is lower to make ammonium chloride product difficult to produce and block up, do benefit to the smooth discharge of ammonium chloride product.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the ammonium chloride waste liquid is subjected to homogeneous mixing treatment by a pretreatment mechanism to prepare a subsequent working section, an oxidation detoxification mechanism is used for carrying out oxidation detoxification treatment on the ammonium chloride waste liquid after the homogeneous mixing, toxic and harmful substances in the ammonium chloride waste liquid can be effectively removed, a spray drying treatment mechanism is used for evaporating and then detoxifying water in the ammonium chloride waste liquid after the oxidation detoxification, and finally a dried ammonium chloride product is obtained;
2. the UV ultraviolet oxidation equipment carries out oxidation detoxification treatment on the ammonium chloride waste liquid, in the process, a hydrogen peroxide storage tank conveys hydrogen peroxide to the UV ultraviolet oxidation equipment, the hydrogen peroxide is used as an oxidant to promote the oxidation detoxification treatment on the ammonium chloride waste liquid, the hydrogen peroxide is catalyzed by ultraviolet light in the UV ultraviolet oxidation equipment to have stronger oxidability, macromolecular refractory organic matters in the ammonium chloride waste liquid can be converted into degradable micromolecular substances, and even CO2 and H2O are directly generated, so that the toxicity of the ammonium chloride waste liquid is removed;
3. and atomizing the ammonium chloride waste liquid after oxidation and detoxification into fine droplets through a rotary atomizer at the input end of the spray tower, spraying the fine droplets into the spray tower, fully contacting with hot air, evaporating moisture in the ammonium chloride droplets by the hot air, performing detoxification treatment, finally discharging the obtained dried ammonium chloride product from the output end of the spray tower for packaging treatment, and discharging the hot air from a hot air outlet.
Drawings
Fig. 1 is a schematic diagram of a spray drying treatment system for ammonium salt waste liquid with high organic content in the embodiment of the application.
Fig. 2 is a schematic view of a preprocessing mechanism in the embodiment of the present application.
FIG. 3 is a schematic view of an oxidative detoxification mechanism according to an embodiment of the present application.
Fig. 4 is a schematic view of a spray drying processing mechanism in the embodiment of the present application.
Reference numerals: 1. a pretreatment mechanism; 11. an ammonium chloride salt solution storage tank; 12. a homogenizing and mixing tank; 2. an oxidation detoxification mechanism; 21. a pH adjusting tank; 22. UV ultraviolet oxidation equipment; 23. a neutralization reaction tank; 24. a hydrochloric acid storage tank; 241. a hydrochloric acid pump; 25. an ammonia water storage tank; 251. an ammonia pump; 26. a hydrogen peroxide storage tank; 261. a hydrogen peroxide pump; 3. a spray drying treatment mechanism; 31. a spray tower; 32. a hot blast stove; 33. a double-layer pneumatic gate valve; 34. a crusher; 4. a first infusion pump; 5. a second infusion pump; 6. a high pressure pump; 7. a third infusion pump; 8. and (4) an infusion pump IV.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a spray drying treatment system for ammonium salt waste liquid containing high content of organic matters. Referring to fig. 1, the spray drying treatment system for the ammonium salt waste liquid with high organic content comprises a pretreatment mechanism 1, an oxidation detoxification mechanism 2 and a spray drying treatment mechanism 3 which are sequentially arranged, wherein the output end of the pretreatment mechanism 1 is connected with the input end of the oxidation detoxification mechanism 2, and the output end of the oxidation detoxification mechanism 2 is connected with the input end of the spray drying treatment mechanism 3. The ammonium chloride waste liquid is conveyed from the input end of the pretreatment mechanism 1 to the pretreatment mechanism 1, is subjected to homogeneous mixing treatment by the pretreatment mechanism 1 and then is conveyed to the oxidation detoxification mechanism 2, the oxidation detoxification mechanism 2 is used for carrying out oxidation detoxification treatment on the ammonium chloride waste liquid after the homogeneous mixing so as to remove toxic and harmful substances in the ammonium chloride waste liquid, and then is conveyed to the spray drying treatment mechanism 3, the spray drying treatment mechanism 3 is used for evaporating and then detoxifying water in the ammonium chloride waste liquid after the oxidation detoxification, and finally, a dried ammonium chloride product is obtained and is discharged from the output end of the spray drying treatment mechanism 3.
Referring to fig. 2, the pretreatment mechanism 1 includes an ammonium chloride solution storage tank 11 and a homogeneous mixing tank 12, an output end of the ammonium chloride solution storage tank 11 is connected to an input end of the homogeneous mixing tank 12, and an output end of the homogeneous mixing tank 12 is connected to an input end of the oxidation detoxification mechanism 2 in the subsequent section. The ammonium chloride waste liquid is stored in an ammonium chloride solution storage tank 11, the ammonium chloride waste liquid in the ammonium chloride solution storage tank 11 is conveyed into a homogenizing mixing tank 12 through a first infusion pump 4, the ammonium chloride waste liquid is subjected to homogenizing mixing treatment through the homogenizing mixing tank 12, the ammonium chloride waste liquid is more uniform and is not prone to precipitation in a subsequent working section, and the ammonium chloride waste liquid subjected to homogenizing mixing treatment in the homogenizing mixing tank 12 is conveyed to an oxidation detoxification mechanism 2 of the subsequent working section through a second infusion pump 5 to be subjected to oxidation detoxification treatment. The pretreatment mechanism 1 is prepared for the subsequent working section, and simultaneously the pretreatment mechanism 1 also has a buffering effect on the subsequent working section, so that the impact influence of the ammonium chloride waste liquid on the subsequent working section is small.
Referring to fig. 3, the oxidation detoxification mechanism 2 includes a PH adjustment tank 21, a UV ultraviolet oxidation apparatus 22, and a neutralization reaction tank 23, as well as a hydrochloric acid storage tank 24, an ammonia water storage tank 25, and a hydrogen peroxide solution storage tank 26. The input end of the PH adjusting tank 21 is connected with the output end of the homogeneous mixing tank 12, the input end of the PH adjusting tank 21 is also connected with the output end of the hydrochloric acid storage tank 24, and the hydrochloric acid solution stored in the hydrochloric acid storage tank 24 is conveyed into the PH adjusting tank 21 through the hydrochloric acid pump 241; the input end of the UV ultraviolet oxidation device 22 is connected with the output end of the PH adjusting tank 21, the input end of the UV ultraviolet oxidation device 22 is also connected with the output end of the hydrogen peroxide storage tank 26, the hydrogen peroxide solution stored in the hydrogen peroxide storage tank 26 is conveyed into the UV ultraviolet oxidation device 22 through the hydrogen peroxide pump 261, and the hydrogen peroxide is used as an oxidant; the output of UV ultraviolet oxidation equipment 22 is connected to the input of neutralization reaction jar 23, and the output of aqueous ammonia storage tank 25 is still connected to the input of neutralization reaction jar 23 simultaneously, and the aqueous ammonia solution of storing in the aqueous ammonia storage tank 25 is carried to neutralization reaction jar 23 in through ammonia pump 251, and the input of the spray drying processing mechanism 3 of follow-up workshop section is connected to the output of neutralization reaction jar 23.
Referring to fig. 3, after being homogenized and mixed in the homogenizing and mixing tank 12, the ammonium chloride waste liquid is conveyed into the PH adjusting tank 21 through the second infusion pump 5, the PH value of the ammonium chloride waste liquid is adjusted to 2 through the PH adjusting tank 21, then conveyed into the UV ultraviolet oxidation equipment 22 through the high-pressure pump 6, and is subjected to oxidation and detoxification treatment through the UV ultraviolet oxidation equipment 22, in the process, the hydrogen peroxide is used as an oxidant to promote the oxidation and detoxification treatment of the ammonium chloride salt waste liquid, meanwhile, the oxydol has stronger oxidability after being catalyzed by the ultraviolet light in the UV ultraviolet oxidation equipment 22, and can carry out a series of ring opening, bond breaking, addition, substitution and electron transfer on macromolecular organic pollutants which are difficult to degrade in the ammonium chloride waste liquid, finally convert macromolecular organic matters which are difficult to degrade in the ammonium chloride waste liquid into micromolecular substances which are easy to degrade, and even directly generate CO2 and H2O, thereby removing the toxicity of the ammonium chloride waste liquid.
And conveying the ammonium chloride waste liquid subjected to oxidation and detoxification treatment to a neutralization reaction tank 23 through a third infusion pump 7, adjusting the pH value of the ammonium chloride waste liquid to 7 back through the neutralization reaction tank 23, conveying the ammonium chloride waste liquid to a spray drying treatment mechanism 3 through a fourth infusion pump 8, and performing water evaporation and detoxification treatment to finally obtain a dried ammonium chloride product.
Referring to fig. 4, the spray drying processing mechanism 3 includes a spraying tower 31, a double-layer pneumatic gate valve 33 and a crusher 34, a conical ash bucket is arranged at the bottom of the spraying tower 31, the top of the spraying tower 31 is an input end, a rotary atomizer is installed at the input end of the spraying tower 31, the bottom of the ash bucket is an output end of the spraying tower 31, the input end of the spraying tower 31 is connected with the output end of the neutralization reaction tank 23, ammonium chloride waste liquid after oxidation and detoxification treatment in the neutralization reaction tank 23 is conveyed into the spraying tower 31 through a liquid conveying pump four 8, the output end of the spraying tower 31 is connected with the input end of the double-layer pneumatic gate valve 33, the output end of the double-layer pneumatic gate valve 33 is connected with the input end of the crusher 34, and the double-layer pneumatic gate valve 33 is used for controlling the conveying amount of ammonium chloride products and cutting off the conveying of the ammonium chloride products. The top of the spray tower 31 is provided with a hot air inlet, the side wall of the ash hopper at the bottom of the spray tower 31 is provided with a hot air outlet, and the hot air inlet is connected with a hot blast stove 32.
Referring to fig. 4, the ammonium chloride waste liquid after being oxidized and detoxified is atomized into fine droplets by a rotary atomizer at the input end of the spray tower 31 and sprayed into the spray tower 31, so that the specific surface area of the ammonium chloride waste liquid in the spray tower 31 can be increased, meanwhile, hot air is provided by a hot air furnace 32 towards a hot air inlet at the top of the spray tower 31, the ammonium chloride droplets are fully contacted with the hot air, the hot air evaporates moisture in the ammonium chloride droplets and then detoxifies the water, and finally, a dry ammonium chloride product is obtained, the hot air is discharged from a hot air outlet, and in the process of discharging the hot air from the hot air outlet, the ammonium chloride product carried in the hot air can be separated from the hot air and fall into an ash bucket due to the action of flow direction change and centrifugal force, so that the waste of the ammonium chloride product is reduced.
Referring to fig. 4, after being discharged from the output end of the spray tower 31, the dried ammonium chloride product enters the crusher 34 through the double-layer pneumatic gate valve 33, and the crushed ammonium chloride product is crushed by the crusher 34, and then is packaged, so that the quality of the ammonium chloride product can be improved.
Referring to fig. 4, in addition, the electric tracing band and the ash bucket vibrator are installed on the outer side wall of the ash bucket at the bottom of the spraying tower 31, so that the condition that ammonium chloride salt products are adhered to the inner wall of the ash bucket due to low temperature can be reduced, the ammonium chloride salt products are not easy to block, and the smooth discharge of the ammonium chloride salt products is facilitated.
The implementation principle of the ammonium salt waste liquid spray drying treatment system with high organic content in the embodiment of the application is as follows: conveying the ammonium chloride waste liquid in an ammonium chloride solution storage tank 11 into a homogeneous mixing tank 12 through a first infusion pump 4, carrying out homogeneous mixing treatment on the ammonium chloride waste liquid by the homogeneous mixing tank 12, conveying the ammonium chloride waste liquid after the homogeneous mixing treatment in the homogeneous mixing tank 12 into a PH adjusting tank 21 through a second infusion pump 5, adjusting the PH value of the ammonium chloride waste liquid to 2 by the PH adjusting tank 21, conveying the ammonium chloride waste liquid into a UV ultraviolet oxidation device 22 through a high-pressure pump 6, carrying out oxidation and detoxification treatment on the ammonium chloride waste liquid by the UV ultraviolet oxidation device 22, conveying the ammonium chloride waste liquid after the oxidation and detoxification treatment into a neutralization reaction tank 23 through a third infusion pump 7, adjusting the PH value of the ammonium chloride waste liquid to 7 by the neutralization reaction tank 23, conveying the ammonium chloride waste liquid into a spray tower 31 through a fourth infusion pump 8, atomizing the ammonium chloride waste liquid into fine fog drops by a rotary atomizer, and spraying the ammonium chloride waste liquid into the spray tower 31, the hot air is fully contacted with the hot air, the hot air evaporates moisture in ammonium chloride salt droplets and then detoxifies the droplets to finally obtain dry ammonium chloride salt products, the hot air is discharged from a hot air outlet, the dry ammonium chloride salt products are discharged from an output end of a spray tower 31, the dry ammonium chloride salt products enter a crusher 34 through a double-layer pneumatic gate valve 33, and part of agglomerated ammonium chloride salt products can be crushed through the crusher 34 and then packaged.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a high ammonium salt waste liquid spray drying processing system who contains organic matter which characterized in that: the device comprises a pretreatment mechanism (1), an oxidation detoxification mechanism (2) and a spray drying treatment mechanism (3), wherein the output end of the pretreatment mechanism (1) is connected with the input end of the oxidation detoxification mechanism (2), the output end of the oxidation detoxification mechanism (2) is connected with the input end of the spray drying treatment mechanism (3), the pretreatment mechanism (1) is used for carrying out homogeneous mixing treatment on ammonium chloride salt waste salt, the oxidation detoxification mechanism (2) is used for carrying out oxidation detoxification treatment on the ammonium chloride waste liquid after the homogeneous mixing, and the spray drying treatment mechanism (3) is used for evaporating moisture in the ammonium chloride waste liquid after the detoxification and then carrying out detoxification treatment to obtain a dried ammonium chloride salt product;
the pretreatment mechanism (1) comprises an ammonium chloride salt solution storage tank (11) and a homogenizing and mixing tank (12), the output end of the ammonium chloride salt solution storage tank (11) is connected with the input end of the homogenizing and mixing tank (12), and the output end of the homogenizing and mixing tank (12) is connected with the input end of the oxidation detoxification mechanism (2);
the oxidation detoxification mechanism (2) comprises a PH adjusting tank (21), a UV ultraviolet oxidation device (22) and a neutralization reaction tank (23), wherein the input end of the PH adjusting tank (21) is connected with the output end of the homogeneous mixing tank (12), the output end of the PH adjusting tank (21) is connected with the input end of the UV ultraviolet oxidation device (22), the output end of the UV ultraviolet oxidation device (22) is connected with the input end of the neutralization reaction tank (23), and the output end of the neutralization reaction tank (23) is connected with the input end of the spray drying treatment mechanism (3).
2. The spray drying treatment system for the ammonium salt waste liquid with high organic content according to claim 1, characterized in that: and the ammonium chloride waste liquid in the ammonium chloride solution storage tank (11) is conveyed to the homogeneous mixing tank (12) through a first infusion pump (4), and the ammonium chloride waste liquid after homogeneous mixing in the homogeneous mixing tank (12) is conveyed to the oxidation and detoxification mechanism (2) through a second infusion pump (5).
3. The spray drying treatment system for the ammonium salt waste liquid with high organic content according to claim 2, characterized in that: ammonium chloride waste liquid in the PH adjustment tank (21) is carried extremely through high-pressure pump (6) UV ultraviolet oxidation equipment (22), ammonium chloride waste liquid after the oxidation detoxification in UV ultraviolet oxidation equipment (22) is carried extremely through transfer pump three (7) neutralization reaction jar (23), ammonium chloride waste liquid in neutralization reaction jar (23) is carried extremely through transfer pump four (8) spray drying processing mechanism (3).
4. The spray drying treatment system for the ammonium salt waste liquid with high organic content according to claim 3, characterized in that: the oxidation detoxification mechanism (2) further comprises a hydrochloric acid storage tank (24) and an ammonia water storage tank (25), the output end of the hydrochloric acid storage tank (24) is connected with the input end of the PH adjusting tank (21), the hydrochloric acid solution in the hydrochloric acid storage tank (24) is conveyed to the PH adjusting tank (21) through a hydrochloric acid pump (241), the output end of the ammonia water storage tank (25) is connected with the input end of the neutralization reaction tank (23), and the ammonia water solution in the ammonia water storage tank (25) is conveyed to the neutralization reaction tank (23) through an ammonia water pump (251).
5. The spray drying treatment system for the ammonium salt waste liquid with high organic content according to claim 3, characterized in that: the oxidation detoxification mechanism (2) further comprises a hydrogen peroxide storage tank (26), the output end of the hydrogen peroxide storage tank (26) is connected with the input end of the UV ultraviolet oxidation equipment (22), and hydrogen peroxide solution in the hydrogen peroxide storage tank (26) is conveyed to the UV ultraviolet oxidation equipment (22) through a hydrogen peroxide pump (261).
6. The spray drying treatment system for the ammonium salt waste liquid with high organic content according to claim 3, characterized in that: spray drying processing apparatus (3) are including spray tower (31), the input of spray tower (31) is connected the output of neutralization retort (23), the rotatory atomizer of the input installation of spray tower (31) atomizes into tiny droplet and spouts in spray tower (31) with the ammonium chloride waste liquid after the oxidation detoxify, hot-air furnace (32) are connected to the hot-air inlet at spray tower (31) top, set up the hot-air export on the ash bucket lateral wall of spray tower (31) bottom, the output setting of spray tower (31) is in the ash bucket bottom.
7. The spray drying treatment system for the ammonium salt waste liquid with high organic content in claim 6, which is characterized in that: spray drying processing mechanism (3) still include double-deck pneumatic push-pull valve (33) and breaker (34), the input of double-deck pneumatic push-pull valve (33) is connected the output of spraying tower (31), the output of double-deck pneumatic push-pull valve (33) is connected the input of breaker (34).
8. The spray drying treatment system for the ammonium salt waste liquid with high organic content in claim 6, which is characterized in that: an electric tracing band and an ash bucket vibrator are arranged on the outer side wall of the ash bucket at the bottom of the spraying tower (31).
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| CN202120582840.9U CN215049425U (en) | 2021-03-23 | 2021-03-23 | High ammonium salt waste liquid spray drying processing system who contains organic matter |
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| CN202120582840.9U CN215049425U (en) | 2021-03-23 | 2021-03-23 | High ammonium salt waste liquid spray drying processing system who contains organic matter |
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