CN213537329U - Modularization pig manure waste water distillation retrieval and utilization processing system - Google Patents
Modularization pig manure waste water distillation retrieval and utilization processing system Download PDFInfo
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- CN213537329U CN213537329U CN202022575575.XU CN202022575575U CN213537329U CN 213537329 U CN213537329 U CN 213537329U CN 202022575575 U CN202022575575 U CN 202022575575U CN 213537329 U CN213537329 U CN 213537329U
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Abstract
The utility model discloses a modularization pig manure waste water distillation retrieval and utilization processing system, including steam boiler module, distillation column module, cooling tower module, this modularization pig manure waste water distillation retrieval and utilization processing system utilizes vacuum distillation technology to reduce pig manure waste water moisture content to exterminate the bacterial pathogen in the pig manure waste water through the high temperature, effectively promoted pig manure biochemical treatment efficiency, and can wash the swinery after the distilled water retrieval and utilization of production, and then realize the cyclic utilization of water resource, practice thrift the water source greatly, subsequent waste water treatment capacity has also been reduced by a wide margin simultaneously. In addition, the steam condensate discharged by the pig manure heater is collected and recycled to the water supply tank of the steam boiler, so that the using amount of soft water is reduced.
Description
Technical Field
The utility model relates to a pig manure handles technical field, especially handles the link to this technology of dehydration concentration of pig manure waste water, the utility model relates to a modularization pig manure waste water distillation retrieval and utilization processing system.
Background
With the rapid development of large-scale pig farms, the discharge amount of pig manure wastewater is larger and larger, and the daily discharge amount of sewage in a group of 2400-head pig farms reaches 20 t/d. The large-scale treatment of the pig manure wastewater brings a series of increasingly severe environmental problems.
The pig farm waste water mainly comes from pig manure and urine and pigsty washing water, contains excrement, urine, feed and the like, and is mainly characterized in that: high ammonia nitrogen, high organic pollutant, high phosphorus content, and many suspended matters, and the sewage also contains disinfectant water, residual pesticide, and various viruses and bacteria which are common to human and livestock. If the pollutants are not properly treated, the pollutants can pollute the water body and the farmland once entering the natural water body and the farmland, and infectious diseases in pig farms are also easily caused.
At present, a fixed treatment process flow is not available for treating wastewater in a pig farm, a traditional mode of anaerobic digestion and aerobic biochemical treatment is generally applied, but the problems that the water content of the pig manure wastewater is very large, the biodegradability of anaerobic effluent is poor, sludge is easy to float upwards, the wastewater discharge is difficult to reach the standard and the like exist, and an existing pig manure treatment system cannot work continuously, has limited treatment capacity and is low in efficiency. Therefore, the research on the pig farm wastewater treatment process which can continuously work, reduce the water content of the pig manure wastewater, increase the reuse of the pig farm wastewater and prevent the cross infection of viruses and bacteria in the pig farm has very important practical significance in helping green circular economy.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model designs a set of modularized pig manure wastewater distillation and reuse treatment system and method, which reduces the water content of the pig manure wastewater and effectively improves the composting treatment effect in the existing large-scale pig manure wastewater treatment process by vacuum distillation and dehydration of the pig manure wastewater; by increasing the wastewater reuse rate (more than 50%) of a pig farm, the amount of wastewater generated by subsequent solid-liquid separation is greatly reduced, so that the wastewater treatment difficulty is effectively relieved, the standard discharge is realized, and the treatment of the pig manure wastewater can be continuously and rapidly realized.
In order to realize the purpose, the utility model discloses a modularization pig manure waste water distillation retrieval and utilization processing system adopts following technical scheme:
a modular pig manure wastewater distillation recycling treatment system comprises the following three process modules: 1) the steam boiler module comprises a smoke purification device, a water collecting tank, a pressurizing water supply pump and the like; 2) the distillation tower module comprises a pig manure wastewater heater, a vacuum pump, a screw pump, a condenser, a PLC control cabinet and the like; 3) and the cooling tower module comprises a circulating water pump, a recycling water tank and the like. The distillation tower module comprises a pig manure wastewater heater and a distillation tower, a sewage lifting pump pumps out pig manure wastewater from a collection pool, injects the pig manure wastewater into the pig manure wastewater heater for heating and then conveys the pig manure wastewater into the distillation tower for distillation, a manure discharge port is arranged below the distillation tower and is connected with a sludge conveying pump, and the sludge conveying pump pumps out pig manure distilled by the distillation tower and discharges the pig manure to the pig manure concentrated solution collection pool; and a steam outlet is arranged above the distillation tower and is connected with a vacuum pump, and the vacuum pump is used for pumping out steam in the distillation tower, condensing the steam by a condenser and discharging the condensed steam to a distilled water recycling and collecting pool.
Preferably, the pig manure wastewater heater is a tubular heater, a feed inlet at the lower end of the tubular heater is connected with a discharge outlet of the sewage lifting pump, and a discharge outlet at the upper end of the tubular heater is connected with a feed inlet of the distillation tower.
Preferably, the tubular heater is a steam heater, the tubular heater being supplied with steam by a steam boiler module.
Preferably, the steam boiler module comprises a steam boiler, a water inlet of the steam boiler is connected with the water replenishing tank through a water pipe, and a steam outlet at the upper end of the steam boiler is connected with a steam inlet of the pig manure wastewater heater through a pipeline so as to provide heating steam for the pig manure wastewater heater.
Preferably, the vacuum pumps are provided with two sets, the two sets of vacuum pumps are arranged in parallel, and the two sets of vacuum pumps work in a staggered mode or work together.
Preferably, the condenser is a spiral wound tube heat exchanger.
Preferably, the condensate water inlet of the condenser is connected with the cooling water circulating pump, the water inlet of the cooling water circulating pump is connected with the cooling water tower, and the cooling water tower is connected with a water source.
Preferably, the vacuum pump is provided with a cooling part, and a cooling water inlet of the cooling part is connected with a water outlet of the cooling water circulating pump through a pipeline.
Preferably, the negative pressure of the distillation column is-0.85 to-0.2 Bar.
Preferably, the pig manure wastewater passing through the pig manure wastewater heater is heated to 65-85 ℃.
The utility model discloses a modularization pig manure waste water distillation retrieval and utilization processing system is a modularized design, also installs relevant equipment and pipeline on a plurality of pallet module, and whole preparation, equipment and debugging in the mill are accomplished the back, directly transport to the use scene, and the hoist and mount location back carries out simple and can switch on after assembling and use. Because of the convenience of installation and use, the pig farm can be rented by an administration unit for use, and the best economic benefit of the wastewater treatment of the pig farm is realized by means of diversified operation management.
The utility model discloses a massing pig manure waste water distillation retrieval and utilization processing system, one set of design throughput of standard is 5t/h, but continuous operation handles, still has good scalability simultaneously. For example, if the wastewater treatment capacity of a pig farm is 200t/d, and the treatment time per day is 8 hours, the treatment capacity of a set of distillation recycling treatment unit is 5t/h 8h/d 40t/d, and then the pig farm can select 5 sets of distillation recycling treatment units to operate simultaneously. The 5t/h distillation recycling treatment unit can be correspondingly increased in volume and expanded in pipelines, and the control procedures and principles are the same, so that 200t/d of pig manure wastewater treatment capacity can be realized after simple equipment pipeline type selection design, manufacturing and installation.
The modularized pig manure wastewater distillation recycling treatment system of the utility model reduces the water content of pig manure wastewater by utilizing the vacuum distillation process, kills bacterial pathogens in the pig manure wastewater through high temperature, effectively improves the biochemical treatment efficiency of pig manure, and can wash the pigsty after the produced distilled water is recycled, thereby realizing the recycling of water resources and greatly saving water sources; meanwhile, the subsequent wastewater treatment capacity is greatly reduced. In addition, the steam condensate discharged by the pig manure heater is collected and recycled to the water supply tank of the steam boiler, so that the using amount of soft water is reduced. After high-temperature sterilization, viruses and bacterial pathogens which are commonly suffered by various people and livestock in the pig manure wastewater are killed, so that the epidemic disease infection risk in a pig farm is effectively reduced.
Drawings
In order that the present invention may be more readily and clearly understood, reference is now made to the following detailed description of the invention taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a modular pig manure wastewater distillation and reuse treatment system of the utility model;
FIG. 2 is a flow chart of the modularized pig manure wastewater distillation and reuse treatment system of the utility model.
The reference numbers in the figures denote:
1-a pig manure wastewater heater; 2-a distillation column; 21-a fecal sewage discharge port; 22-a steam outlet; 3-sewage lift pump; 4-a collection tank; 5-a sludge delivery pump; 6-a pig manure concentrated solution collecting tank; 7-a vacuum pump; 71-a cooling section; 8-a condenser; 9-distilled water recycling and collecting tank; 10-a steam boiler module; 11-a steam boiler; 12-a water replenishing tank; 13-cooling water circulation pump; 14-a cooling water tower; 15-flue gas purification device.
Detailed Description
Referring to fig. 1-2, a modular pig manure wastewater distillation recycling treatment system is divided into the following three process modules: 1) the steam boiler module comprises a smoke purification device, a water collecting tank, a pressurizing water supply pump and the like; 2) the distillation tower module comprises a pig manure wastewater heater, a vacuum pump, a screw pump, a condenser, a PLC control cabinet and the like; 3) and the cooling tower module comprises a circulating water pump, a recycling water tank and the like.
The distillation tower module comprises a pig manure wastewater heater 1 and a distillation tower 2, a sewage lifting pump 3 is used for pumping pig manure wastewater out of a collecting tank 4, injecting the pig manure wastewater into the pig manure wastewater heater 1, heating the pig manure wastewater, and then conveying the pig manure wastewater into the distillation tower 2 for distillation, a manure discharge port 21 is arranged below the distillation tower 2, the manure discharge port 21 is connected with a sludge conveying pump 5, and the sludge conveying pump 5 is used for pumping out concentrated pig manure which is distilled and sterilized by the distillation tower 2 and then discharging the concentrated pig manure to a pig manure concentrated solution collecting tank 6; a steam outlet 22 is arranged above the distillation tower 2, the steam outlet 22 is connected with a vacuum pump 7, and the vacuum pump 7 is used for pumping out steam in the distillation tower 2, condensing the steam by a condenser 8 and discharging the condensed steam to a distilled water recycling and collecting tank 9. The utility model discloses a modularization pig manure waste water distillation retrieval and utilization processing system utilizes vacuum distillation technology to reduce pig manure waste water moisture content to exterminate the bacterial pathogen in the pig manure waste water through high temperature, effectively promoted pig manure biochemical treatment efficiency, and can wash the swinery after the distilled water retrieval and utilization of production, and then realize the cyclic utilization of water resource, practice thrift the water source greatly. After high-temperature sterilization, viruses and bacterial pathogens which are commonly suffered by various people and livestock in the pig manure wastewater are killed, so that the epidemic disease infection risk in a pig farm is effectively reduced.
The pig manure wastewater heater 1 of the embodiment is a tubular heater, a feed inlet at the lower end of the tubular heater is connected with a discharge outlet of the sewage lifting pump 3, and a discharge outlet at the upper end of the tubular heater is connected with a feed inlet of the distillation tower 2; the tubular heater is a steam heater that is supplied with steam by the steam boiler module 10. The heating is carried out by adopting steam, so that the heating temperature is convenient to control, the heating and sterilizing effects are better, and the device is more suitable for the operation and use of a pig farm. Steam is supplied downwards from the upper end of this pig manure waste water heater 1, and the pig manure waste water of following the collecting pit extraction then carries upwards from the lower extreme of pig manure waste water heater, and then realize heating the sterilization with steam to the pig manure waste water of extraction, back in the pig manure waste water after the heating carries to the distillation column, because the effect of transpiration and negative pressure, the steam in the pig manure waste water is outwards taken out by the positive empty pump, and then carry out the concentrated distillation to the pig manure waste water, and further realize the extermination of residual virus and bacterial pathogen, the evaporation is through the steam that the vacuum pump was taken out behind the condensation, then realized the further recycle to waste water in the former pig manure, and then practiced thrift the water source.
The steam boiler module 1 of this embodiment includes steam boiler 11, steam boiler 11's water inlet leads to pipe and is connected with moisturizing case 12, the steam discharge mouth of steam boiler 11 upper end pass through the pipeline with the steam inlet of pig manure waste water heater 1 is connected in order to provide heating steam for pig manure waste water heater 1 to the heating pig manure waste water. The steam boiler 11 of the present embodiment may be heated by burning biofuel, or may be heated by electric heating. In order to protect the environment, if the biomass fuel is used for heating, a flue gas purification device 15 is required to be arranged at the smoke outlet of the steam boiler so as to meet the requirement of environmental protection.
In order to improve the working stability of the distillation tower and ensure that the pig manure wastewater in the distillation tower can be distilled, concentrated and sterilized according to preset parameters, the vacuum pumps 7 are provided with two sets, the vacuum pumps 7 are arranged in parallel, and the vacuum pumps 7 can be arranged to work in a staggered manner or work together as required in the actual working process so as to ensure the vacuum degree in the distillation tower 2.
The condenser 8 of this embodiment is spiral winding pipe heat exchanger, the comdenstion water import of condenser is connected with cooling water circulating pump 13, cooling water circulating pump 13's water inlet is connected with cooling water tower 14, cooling water tower 14 is connected the water source, and the water source can be water pipe, the delivery pipe of other forms. The cooling tower 14 is configured to store a volume of cooling water to provide sufficient cooling water for the system.
In order to timely cool down the vacuum pump 7 to guarantee the working stability of the vacuum pump, the vacuum pump 7 is provided with a cooling part 71, and a cooling water inlet of the cooling part 71 is connected with a water outlet of the cooling water circulating pump 13 through a pipeline. The cooling water is supplied to the cooling part 71 by the cooling water circulating pump 13, so that energy can be saved, equipment can be reduced, and the complexity of the whole system can be simplified.
Preferably, the negative pressure of the distillation column of this embodiment is-0.85 Bar to-0.2 Bar, particularly preferably-0.85 Bar; pig manure waste water that the pig manure waste water heater 1 passes through it heats to 65 ~ 85 ℃ to preferred 80 ℃, not only can realize the effective evaporation to the too much moisture in the pig manure waste water under this temperature, reach the purpose of concentrated pig manure waste water, can also effectively kill virus and bacterial pathogen in the former pig manure waste water simultaneously, reach the effect of sterilization, but also relative energy can be saved, the waste of the energy is reduced.
In order to realize the automatic control of the modularized pig manure wastewater distillation and reuse treatment system, automatic monitoring and control components such as injection electromagnetic valves, pressure gauges, thermometers, pressure switches and the like can be arranged at the inlet and outlet of each pipeline and each device according to the requirements.
The above-mentioned embodiments are only for explaining the technical solution of the present invention in detail, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art should understand that all the modifications and substitutions based on the above-mentioned principle and spirit should be within the protection scope of the present invention.
Claims (10)
1. The utility model provides a modularization pig manure waste water distillation retrieval and utilization processing system which characterized in that: the device comprises a pig manure wastewater heater and a distillation tower, wherein a sewage lifting pump is used for pumping pig manure wastewater out of a collecting tank, injecting the pig manure wastewater into the pig manure wastewater heater for heating and then conveying the pig manure wastewater into the distillation tower for distillation, a manure discharge port is arranged below the distillation tower and connected with a sludge conveying pump, and the sludge conveying pump is used for pumping the pig manure distilled by the distillation tower and discharging the pig manure to a pig manure concentrated solution collecting tank; and a steam outlet is arranged above the distillation tower and is connected with a vacuum pump, and the vacuum pump is used for pumping out steam in the distillation tower, condensing the steam by a condenser and discharging the condensed steam to a distilled water recycling and collecting pool.
2. The modular pig manure wastewater distillation and reuse treatment system according to claim 1, characterized in that: the pig manure wastewater heater is a tubular heater, a feed inlet at the lower end of the tubular heater is connected with a discharge port of the sewage lifting pump, and a discharge outlet at the upper end of the tubular heater is connected with a feed inlet of the distillation tower.
3. The modular pig manure wastewater distillation and reuse treatment system according to claim 2, characterized in that: the tubular heater is a steam heater supplied with steam from a steam boiler module.
4. The modular pig manure wastewater distillation and reuse treatment system according to claim 3, characterized in that: the steam boiler module comprises a steam boiler, a water inlet of the steam boiler is connected with the water replenishing tank through a water pipe, and a steam outlet at the upper end of the steam boiler is connected with a steam inlet of the pig manure wastewater heater through a pipeline so as to provide heating steam for the pig manure wastewater heater.
5. The modular pig manure wastewater distillation and reuse treatment system according to claim 2, characterized in that: the vacuum pump is provided with two sets, the two sets of vacuum pumps are arranged in parallel, and the two sets of vacuum pumps work in a staggered mode or work together.
6. The modular pig manure wastewater distillation and reuse treatment system according to claim 2, characterized in that: the condenser is a spiral wound tube heat exchanger.
7. The modular pig manure wastewater distillation and reuse treatment system according to claim 6, characterized in that: the condensate water inlet of the condenser is connected with the cooling water circulating pump, the water inlet of the cooling water circulating pump is connected with the cooling water tower, and the cooling water tower is connected with a water source.
8. The modular pig manure wastewater distillation and reuse treatment system according to claim 7, characterized in that: the vacuum pump is provided with a cooling part, and a cooling water inlet of the cooling part is connected with a water outlet of the cooling water circulating pump through a pipeline.
9. The modular pig manure wastewater distillation and reuse treatment system according to claim 1, characterized in that: the negative pressure of the distillation tower is-0.85 to-0.2 Bar.
10. The modular pig manure wastewater distillation and reuse treatment system according to claim 1, characterized in that: the pig manure wastewater passing through the pig manure wastewater heater is heated to 65-85 ℃.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853247A (en) * | 2022-05-31 | 2022-08-05 | 上海纳晶科技有限公司 | Device and method for recycling excrement and urine waste liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853247A (en) * | 2022-05-31 | 2022-08-05 | 上海纳晶科技有限公司 | Device and method for recycling excrement and urine waste liquid |
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