CN209968096U - Livestock and poultry urine treatment system as supplementary boiler denitration reducing agent - Google Patents
Livestock and poultry urine treatment system as supplementary boiler denitration reducing agent Download PDFInfo
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- CN209968096U CN209968096U CN201920355550.3U CN201920355550U CN209968096U CN 209968096 U CN209968096 U CN 209968096U CN 201920355550 U CN201920355550 U CN 201920355550U CN 209968096 U CN209968096 U CN 209968096U
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Abstract
The utility model belongs to the technical field of sewage treatment, a beasts and birds urine processing system as supplementary boiler denitration reductant is related to. This processing system, including the beasts and birds urine storage tank, coarse filter, fine filter, collecting pit, urea solution agitator tank, delivery pump, urea solution storage tank, force (forcing) pump, denitration spray gun, the burning furnace that connect gradually, still include the urea storage tank and the demineralized water case of being connected with the feed inlet of urea solution agitator tank, still include the steam generator who is connected with the cover that presss from both sides of urea solution agitator tank. This processing system utilizes the urea in the beasts and birds urine, and the supplementary use of biomass boiler denitration reductant spouts into and carries out denitration, combustion-supporting in the furnace, both can realize minimizing, resourceization, innocent treatment of beasts and birds urine, can reduction in production cost again, reduces the pollution to the environment.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, a beasts and birds urine processing system as supplementary boiler denitration reductant is related to.
Background
The domestic and foreign treatment method for the large-scale livestock and poultry farm excrement and urine water mainly comprises two types of comprehensive utilization and standard discharge treatment. Comprehensive utilization is a good way for multilevel utilization of biomass energy, construction of ecological agriculture and guarantee of sustainable development of agriculture; however, the feeding management mode of livestock and poultry farms in China is laggard, and anaerobic treatment is not in place before comprehensive utilization, so that a plurality of problems are often caused in the process of comprehensive utilization of livestock and poultry liquid dung, such as high wastewater yield, complex components, high concentration of pollutants after treatment, large using amount of dilution water, and influence of seasons, irrigation and the like. For the method for treating the discharge reaching the standard, although the process flows used at home and abroad are approximately the same, namely solid-liquid separation, anaerobic digestion and aerobic treatment; however, for the breeding industry in micro-profit operation in China, the investment for building the manure treatment facilities is huge and the operating cost is too high.
In conclusion, aiming at the problems of large urine production amount of livestock and poultry manure, serious pollution, difficult treatment and the like, the method for treating the manure in the breeding industry, which has the advantages of small facility investment, low operating cost and high treatment efficiency, is searched and becomes the key point for solving the pollution in the breeding industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a beasts and birds urine processing system as supplementing boiler denitration reductant, equipment investment cost is low, and the system operation expense is low, and beasts and birds urine treatment effeciency is high, the high-usage.
The utility model provides a technical scheme of above-mentioned technical problem does:
a livestock and poultry urine treatment system used as a supplementary boiler denitration reducing agent comprises a livestock and poultry urine storage tank, a coarse filter, a fine filter, a collecting tank, a urea dissolving and stirring tank, a delivery pump, a urea dissolving storage tank, a pressure pump, a denitration spray gun and an incinerator; the livestock and poultry urine outlet of the livestock and poultry urine storage tank is connected with the feeding port of the coarse filter, the discharging port of the coarse filter is connected with the feeding port of the fine filter, the discharging port of the fine filter is connected with the feeding port of the collecting tank, the discharging port of the collecting tank is connected with the feeding port of the urea dissolving and stirring tank, the stirring solution in the urea dissolving and stirring tank is connected with the feeding port of the urea dissolving and storing tank through a conveying pump, the urea dissolving solution in the urea dissolving and storing tank is connected with a denitration spray gun through a pressure pump, and the jet orifice of the denitration spray gun is positioned;
still include urea storage tank, demineralized water case, steam generator, the urea solution export of urea storage tank is passed through the pipeline and is connected with the feed inlet that the urea dissolved the agitator tank, and the demineralized water export of demineralized water case is passed through the pipeline and is connected with the feed inlet that the urea dissolved the agitator tank, and steam generator's steam outlet passes through the pipeline and dissolves the cover of agitator tank with the urea and be connected.
Further, the coarse filter is a grating filter, the filter screen is made of stainless steel, and the filtering precision is 4 mm-l 0 mm; the fine filter is a grating filter, the filter screen is made of stainless steel, and the filtering precision is 0.5 mm.
Further, a steam outlet of the steam generator is connected with a jacket of the urea dissolving storage tank through a pipeline; the demineralized water of the demineralized water tank is respectively connected with the spray gun pipeline of the denitration spray gun and the cooling cavity of the denitration spray gun through pipelines.
Further, the quantity of urea dissolving storage tank is at least 2, and communicates through the pipeline between the inlet pipe, communicates through the pipeline between the discharging pipe.
The working principle of the SNCR denitration technology of the boiler is as follows: adding ammonia or urea [ CO (NH)2)2]Spraying the reducing agent into the high temperature area (900-1100 deg.C) of incinerator, and decomposing urea to generate free ammonia radical and NOxReacting to reduce it to N2、H2O and CO2To achieve the removal of NOxThe purpose of (1).
The livestock and poultry urine in the large-scale breeding area is large in production amount, and meanwhile, the urine contains a certain amount of urea, so that the livestock and poultry urine can be used as a supplement of a biomass power plant SNCR denitration reducing agent and sprayed into a hearth for denitration and combustion supporting, so that the livestock and poultry urine reduction, recycling and harmless treatment can be realized, the production cost can be reduced, the pollution to the environment is reduced, and the environment-friendly type livestock and poultry urine denitration reducing agent belongs to the field of environmental protection.
The utility model relates to a livestock and poultry urine processing system for supplementing a boiler denitration reducing agent has the advantages that after coarse filtration and fine filtration, the livestock and poultry urine is mixed with a urea solution and is conveyed to a hearth denitration area, the livestock and poultry urine can be continuously sprayed into a high-temperature area in a boiler during the operation of the boiler, and the livestock and poultry urine can be used as the boiler denitration reducing agent for supplementing for a long time, so that the production cost is greatly reduced, and meanwhile, the boiler can be supported with combustion in the denitration process, and the power generation efficiency is improved; the treatment process is simple, the maintenance and the repair are convenient, the cost is low, the investment cost of the treatment equipment for treating the urine of the livestock and poultry is saved, and the labor investment is correspondingly reduced; the treatment system utilizes a certain amount of urea contained in the livestock and poultry urine as a supplementary use of a biomass boiler denitration reducing agent, and the urea is sprayed into a hearth for denitration and combustion supporting, so that the reduction, recycling and harmless treatment of the livestock and poultry urine can be realized, the production cost can be reduced, and the pollution to the environment is reduced.
Drawings
Figure 1 is the utility model relates to a supplementary boiler denitration reductant's beasts and birds urine processing system's structural schematic.
The codes in the figures are respectively: livestock and poultry urine storage tank 1, coarse filter 2, fine filter 3, collecting pit 4, urea dissolving agitator tank 5, first delivery pump 6-1, second delivery pump 6-2, first urea dissolving storage tank 7-1, second urea dissolving storage tank 7-2, first booster pump 8-1, second booster pump 8-2, first denitration spray gun 9-1, second denitration spray gun 9-2, incinerator 10, urea storage tank 11, demineralized water tank 12, steam generator 13.
Detailed Description
As shown in fig. 1, a livestock and poultry urine treatment system as a supplementary boiler denitration reducing agent comprises a livestock and poultry urine storage tank 1, a coarse filter 2, a fine filter 3, a collection pool 4, a urea dissolving and stirring tank 5, a delivery pump, a urea dissolving storage tank, a pressure pump, a denitration spray gun, an incinerator 10, a urea storage tank 11, a desalting water tank 12 and a steam generator 13. The delivery pump includes first delivery pump 6-1 and second delivery pump 6-2, and the urea dissolves the storage tank and includes first urea and dissolves storage tank 7-1 and second urea and dissolve storage tank 7-2, and the force (forcing) pump includes first force (forcing) pump 8-1 and second force (forcing) pump 8-2, and the denitration spray gun includes first denitration spray gun 9-1 and second denitration spray gun 9-2.
Livestock and poultry urine collected from a farm is stored in the livestock and poultry urine storage tank 1, the livestock and poultry urine outlet is connected with the feeding hole of the coarse filter 2 through a pipeline, and the livestock and poultry urine is conveyed into the coarse filter 2, wherein the coarse filter 2 is a rotary grid filter, the filter screen is made of stainless steel, the filtering precision is 4 mm-l 0mm, and the filter screen is used for filtering large particles, impurities and suspended matters contained in the urine; the discharge hole of the coarse filter 2 is connected with the feed inlet of the fine filter 3 through a pipeline, and the livestock and poultry urine filtered by the coarse filter 2 is conveyed into the fine filter 3, wherein the fine filter 3 is also a rotary grating filter, the filter screen is made of stainless steel, the filtering precision is 0.5mm, and the fine filter is used for filtering fine impurities; meanwhile, the slag filtered by the coarse filter 2 and the fine filter 3 can be used as fuel of the incinerator 10 after being dehydrated by a dehydrating device and mixed with biomass fuel for combustion; the discharge gate of fine filter 3 is connected with the feed inlet of collecting pit 4 through the pipeline, keeps in collecting pit 4 with filterable beasts and birds urine.
A discharge port of the collecting tank 4 is connected with a feed port of the urea dissolving and stirring tank 5 through a pump, and the filtered livestock and poultry urine is conveyed into the urea dissolving and stirring tank 5; a urea solution outlet of the urea storage tank 11 is connected with a feed inlet of the urea dissolving and stirring tank 5 through a pipeline and is used for conveying the urea solution stored in the urea storage tank 11 into the urea dissolving and stirring tank 5; the demineralized water outlet of the demineralized water tank 12 is connected with the feed inlet of the urea dissolving and stirring tank 5, and is used for conveying the demineralized water stored in the demineralized water tank 12 into the urea dissolving and stirring tank 5 to be used as a solvent for dissolving urea. The solution in the urea dissolving and stirring tank 5 can be fully mixed and reacted by continuous stirring.
Part of the stirring solution in the urea dissolving and stirring tank 5 is connected with a feed inlet of a first urea dissolving storage tank 7-1 through a first delivery pump 6-1, part of the stirring solution is connected with a feed inlet of a second urea dissolving storage tank 7-2 through a second delivery pump 6-2, meanwhile, a feed pipe of the first urea dissolving storage tank 7-1 is communicated with a feed pipe of the second urea dissolving storage tank 7-2 through a pipeline, and discharge pipes are communicated with each other through a pipeline, so that materials between the two urea dissolving storage tanks can mutually circulate as required; the urea dissolving liquid in the first urea dissolving storage tank 7-1 is connected with a first denitration spray gun 9-1 through a first pressure pump 8-1, the number of the first denitration spray guns 9-1 is at least 3, and the first denitration spray guns are all positioned in a combustion chamber of a hearth at the left side of the incinerator 10, the urea dissolving liquid in the second urea dissolving storage tank 7-2 is connected with a second denitration spray gun 9-2 through a second pressure pump 8-2, and the number of the second denitration spray guns 9-2 is at least 3, and the second denitration spray guns are all positioned in a combustion chamber of a hearth at the right side of the incinerator 10; livestock and poultry urine which contains a certain amount of urea and is treated by urea solution is used as a supplement of a biomass boiler denitration reducing agent through a denitration spray gun 9 and is sprayed into a hearth of an incinerator 10 for denitration and combustion supporting. Meanwhile, the whole material is conveyed by using independent storage equipment, and frequency conversion regulation is realized by using the pressure pump 8, so that the controllability is higher.
A steam outlet of the steam generator 13 is respectively connected with a jacket of the urea dissolving and stirring tank 5, a jacket of the first urea dissolving storage tank 7-1 and a jacket of the second urea dissolving storage tank 7-2 through pipelines, and is used for carrying out heat tracing and heat preservation on the urea dissolving and stirring tank 5 and the urea dissolving storage tank to prevent freezing in winter; the demineralized water tank 12 is connected with the spray gun pipeline of the denitration spray gun and the cooling cavity of the denitration spray gun through a pump and a conveying pipeline respectively, and can be used for flushing when being shut down or a nozzle is blocked when being connected with the spray gun pipeline, and can be used as cooling water of the denitration spray gun when being connected with the cooling cavity.
The utility model discloses processing system carries out coarse filtration, fine filtration with the beasts and birds urine earlier, and the solution that will filter again uses with the urea solution thoughtlessly, carries to furnace denitration district and spouts respectively and burn burning furnace 10 furnace's left and right side in the high temperature district carry out denitration and combustion-supporting supplementary use through the force (forcing) pump, simultaneously, can spout combustion treatment, denitration to the interior high temperature district of stove in succession during the boiler operation to combustion-supporting effect is played to the boiler burning, realizes the innocent treatment of beasts and birds urine. In addition, after being roughly filtered, finely filtered and collected, the livestock and poultry manure urine can be directly sprayed into a high-temperature area in the incinerator 10 for combustion treatment and denitration; through the combination of the treatment mode and another mode, namely, the urea solution is mixed and sprayed into a high-temperature area in the incinerator 10 for combustion treatment and denitration, more thorough and more complete denitration in the incinerator and harmless treatment of the livestock and poultry urine are realized.
Claims (7)
1. A livestock and poultry urine treatment system used as a supplementary boiler denitration reducing agent is characterized by comprising a livestock and poultry urine storage tank, a coarse filter, a fine filter, a collecting pool, a urea dissolving and stirring tank, a delivery pump, a urea dissolving storage tank, a pressure pump, a denitration spray gun and an incinerator;
the device comprises a urea dissolving and stirring tank, a denitration spray gun, a livestock urine outlet of the livestock urine storage tank, a discharge port of the coarse filter, a discharge port of a fine filter, a discharge port of a collecting tank, a discharge port of the collecting tank, a urea dissolving and stirring tank, a conveying pump, a urea dissolving liquid, a jet orifice of the denitration spray gun and a spraying port of the urea dissolving and stirring tank, wherein the livestock urine outlet of the livestock urine storage tank is connected with a feed port of the coarse filter;
the urea dissolving and stirring device is characterized by also comprising a urea storage tank, wherein a urea solution outlet of the urea storage tank is connected with a feed inlet of the urea dissolving and stirring tank through a pipeline;
the system also comprises a desalted water tank, wherein a desalted water outlet of the desalted water tank is connected with a feed inlet of the urea dissolving and stirring tank through a pipeline;
the urea dissolving and stirring device further comprises a steam generator, and a steam outlet of the steam generator is connected with a jacket of the urea dissolving and stirring tank through a pipeline.
2. The livestock and poultry urine treatment system of claim 1, wherein said coarse filter is a grid filter, the material of the filter screen is stainless steel, and the filtering precision is 4 mm-l 0 mm.
3. The livestock and poultry urine treatment system of claim 1, wherein said fine filter is a grid filter, the material of the filter screen is stainless steel, and the filtering precision is 0.5 mm.
4. The livestock and poultry urine treatment system of claim 1, wherein the steam outlet of said steam generator is connected with the jacket of the urea dissolving tank through a pipe.
5. The livestock and poultry urine treatment system of claim 1, wherein the demineralized water of the demineralized water tank is respectively connected with the spray gun pipeline of the denitration spray gun and the cooling cavity of the denitration spray gun through pipelines.
6. The livestock and poultry urine treatment system of claim 1, wherein the number of said urea dissolving storage tanks is at least 2, and the feeding pipes are communicated with each other through a pipeline.
7. The livestock and poultry urine treatment system of claim 6, wherein the discharge pipe of said urea dissolving storage tank is communicated with each other through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920355550.3U CN209968096U (en) | 2019-03-20 | 2019-03-20 | Livestock and poultry urine treatment system as supplementary boiler denitration reducing agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920355550.3U CN209968096U (en) | 2019-03-20 | 2019-03-20 | Livestock and poultry urine treatment system as supplementary boiler denitration reducing agent |
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| CN209968096U true CN209968096U (en) | 2020-01-21 |
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| CN201920355550.3U Active CN209968096U (en) | 2019-03-20 | 2019-03-20 | Livestock and poultry urine treatment system as supplementary boiler denitration reducing agent |
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