CN207918470U - Waste water is concentrated in vacuo the device recycled in a kind of biogas slurry - Google Patents
Waste water is concentrated in vacuo the device recycled in a kind of biogas slurry Download PDFInfo
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- CN207918470U CN207918470U CN201721765564.XU CN201721765564U CN207918470U CN 207918470 U CN207918470 U CN 207918470U CN 201721765564 U CN201721765564 U CN 201721765564U CN 207918470 U CN207918470 U CN 207918470U
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- biogas slurry
- tank
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- purifying column
- water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model is related to sewage treatment fields, it discloses waste water in a kind of biogas slurry and is concentrated in vacuo the device recycled, including purifying column, biogas slurry heater, defoaming tank, surge tank, biogas slurry cooler, knockout drum, water seal tank, anaerobic fermentation tank, the purifying column top is equipped with material inlet, the material inlet is connect with anaerobic fermentation tank, connect at the top of the purifying column top and biogas slurry heater, purifying column lower part is connect with biogas slurry heater lower part, the purifying column top is connect with pot bottom is defoamed；The defoaming tank top is connect with surge tank top.The utility model is by biogas slurry concentrate under negative pressure, entire processing procedure not nutriments such as destruction of organic material, and the content of organic matter is more than 65% in the pure biogas slurry of gained, is directly used in farmland, NH in recycle-water4N, the content ＜ 300ppm of sulfide etc., volatile substances, the supplement water as anaerobic fermentation tank keep anaerobic fermentation tank temperature constant, shorten the time of liquefaction and production acid, improve gas producing efficiency.
Description
Technical field
The utility model is related to sewage treatment field, especially a kind of processing method of anaerobic fermentation biogas slurry.
Background technology
With the improvement of people's living standard in our country, scale animal and poultry cultivation industry is grown rapidly, and generates a large amount of cultivation wastes,
The country mostly uses anaerobic ferment process and handles these wastes at present, effectively reduces the primary pollution of feces of farm.But simultaneously
It is not all that through anaerobic ferment process, treated that waste can be fully used.It, can since farm their location is different
Processing method to dissolve waste water after processing completely, which can only limitedly be applied to periphery, farmland appropriate, fish pond or aquatic
The livestock and poultry place of Plant Pond, and by the environment for planning as a whole system arrangement of the ecological agriculture.Most of farm does not fill
The condition and corresponding ability of foot reach such tupe.Therefore it while waste recycling, still will produce
Largely, concentrate, secondary pollutant-biogas slurry.
Biogas slurry is to cultivate answering of being generated after anaerobic fermentation in methane-generating pit of the organic wastes such as excrement and agricultural crop straw
Miscellaneous, high concentration organic wastewater has corruption in biogas slurry containing multiple elements, active organic components such as nitrogen, phosphorus, potassium, magnesium and calcium
The plant hormones such as phytic acid, heteroauxin, lactic acid bacteria, gibberellin and the basic element of cell division and B family vitamin, also containing there are many amino
Acid, protein, hydrolase and the organic molecules such as a variety of inorganic acids and certain antibiotic.Mutual coordinative role between these ingredients
It is present in biogas slurry in the form of available nutrient and biological pesticide, directly can be promptly absorbed and be killed harmful levels of pathogens and worm's ovum
And promote the growth of the plants such as crops and flowers, therefore biogas slurry could also say that a kind of medicine fertilizer.The science application of biogas slurry can carry
The content of high soil with organic matter and nutrient improves soil texture, increases soil fertility；But containing a large amount of in biogas slurry
The water of solid and free state, if its direct returning to farmland is utilized so that the value of the nutritional ingredient of solid therein cannot be effective
It utilizes, and biogas slurry COD, SS, NH4- N etc. is more than discharge standard, and direct returning to farmland utilization will pollute the environment；And in scale
Livestock and poultry breeding industry region, nutritional ingredient concentration is low in biogas slurry, and supply exceed demand for biogas slurry, if the discharge of excessive biogas slurry will be caused environment
Pollution.
Utility model content
The technical problem to be solved by the utility model is to provide waste water in a kind of biogas slurry to be concentrated in vacuo the dress recycled
It sets, solves in the prior art that nutritional ingredient concentration is low in biogas slurry, COD, SS, NH4Problem exceeded-N etc..
Technical solution adopted by the utility model to solve its technical problems is：A kind of anaerobic fermentation biogas slurry vacuum concentration dress
It sets, including purifying column, biogas slurry heater, defoaming tank, surge tank, biogas slurry cooler, knockout drum, water seal tank, anaerobic fermentation
Tank, the purifying column top are equipped with material inlet, and the material inlet is connect with anaerobic fermentation tank, the purifying column top and natural pond
Connection, purifying column lower part are connect with biogas slurry heater lower part at the top of liquid heater, are connected with defoaming pot bottom at the top of the purifying column
It connects；The defoaming tank top is connect with surge tank top, and the buffering pot bottom is connect with purifying column top；The biogas slurry cooling
Device is equipped with cooling medium inlet, cooling media outlet, gas feed, gas vent and liquid outlet, the surge tank top
It is connect with biogas slurry cooler gas import, the biogas slurry cooler gas outlet is connect with knockout drum, the biogas slurry cooling
Device liquid outlet is connect with water seal tank；The gas-liquid separation pot bottom is connect with water seal tank, the gas-liquid separation tank top with it is true
Empty set system connection；The water seal tank is connect by least one delivery pump with anaerobic fermentation tank.
Further, the biogas slurry heater is equipped with steam inlet and condensation-water drain, for leading to steam heating purification
Tower.
Further, the biogas slurry cooler is chilled brine or cooling water for the cooling medium of condensation.
Waste water is concentrated in vacuo the method recycled in a kind of biogas slurry, includes the following steps：
(a) waste water in a kind of above-mentioned biogas slurry is provided and is concentrated in vacuo the device recycled, it will be from anaerobic fermentation tank
Purifying column is added in biogas slurry, and carrying out heating purification to purifying column using biogas slurry heater makes liquid be changed into indirect steam, secondary steaming
Vapour, which is entered by tower top after defoaming tank carries out 1~3min of defoaming, enters back into 1~3min of stop in surge tank；The purifying column, biogas slurry
The pressure of heater is -0.07~-0.08MPa, and the purifying column bottom temperature is 60~65 DEG C；
(b) buffering pot liquid returns to purifying column, and gas enters biogas slurry cooler, and what is condensed out in biogas slurry cooler is cold
Condensate enters water seal tank；Gas is detached by vacuum system, is condensed after the gas not being condensed enters knockout drum gas-liquid separation
Water enters water seal tank and forms fluid-tight, keeps height >=10m of condensed water in water seal tank；The defoaming tank, surge tank, biogas slurry cooling
Device, knockout drum pressure be -0.08~-0.09MPa；The temperature for the condensed water that the biogas slurry cooler enters water seal tank is
50~55 DEG C；
(c) water of water seal tank is delivered to anaerobic fermentation tank by delivery pump and is recycled as fermentation supplement water.
Further, the vacuum system is used to cool down to purifying column, biogas slurry heater, defoaming tank, surge tank, biogas slurry
Device, knockout drum provide negative pressure.
Further, NH in the water of the water seal tank4The content ＜ 300ppm of-N, the content ＜ of volatile substances
300ppm。
The utility model has the beneficial effects that：The biogas slurry that the utility model generates medium and high temperature anaerobic digestion is under negative pressure
Concentrate, entire processing procedure not nutriments such as destruction of organic material, the content of organic matter is more than 65% in the pure biogas slurry of gained, directly
For farmland, the condensate temperature collected in water seal tank is 50~55 DEG C, NH4The content ＜ of-N, sulfide etc., volatile substances
300ppm, the supplement water as anaerobic fermentation tank keep anaerobic fermentation tank temperature constant, shorten the time of liquefaction and production acid, improve
Gas producing efficiency；The utility model saves 50% or more energy consumption than existing biogas slurry concentrate processing mode, and entire processing procedure without
The wasting of resources, invariably waste water and gas discharge up to standard, reduce environmental pollution, with good economic efficiency and social benefit.
Description of the drawings
Fig. 1 is the apparatus structure schematic diagram of the utility model；
In figure label for：1- purifying columns, 2- biogas slurries heater, 3- defoamings tank, 4- surge tanks, 5- biogas slurries cooler, 6- gas
Liquid knockout drum, 7- delivery pumps, 8- anaerobic fermentation tanks, 9- water seal tanks.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of anaerobic fermentation biogas slurry vacuum concentrating apparatus of the utility model, including purifying column 1, biogas slurry add
Hot device 2, defoaming tank 3, surge tank 4, biogas slurry cooler 5, knockout drum 6, water seal tank 9, anaerobic fermentation tank 8, the purifying column 1
Top is equipped with material inlet, and the material inlet is connect with anaerobic fermentation tank 8, and 1 top of the purifying column is pushed up with biogas slurry heater 2
Portion's connection, 1 lower part of purifying column are connect with 2 lower part of biogas slurry heater, and 1 top of the purifying column is connect with 3 bottom of defoaming tank；It is described
3 top of defoaming tank is connect with 4 top of surge tank, and 4 bottom of the surge tank is connect with 1 top of purifying column；The biogas slurry cooler 2
Be equipped with cooling medium inlet, cooling media outlet, gas feed, gas vent and liquid outlet, 4 top of the surge tank with
5 gas feed of biogas slurry cooler connects, and 5 gas vent of biogas slurry cooler is connect with knockout drum 6, the biogas slurry cooling
5 liquid outlet of device is connect with water seal tank 9；6 bottom of the knockout drum is connect with water seal tank 9,6 top of the knockout drum
It is connect with vacuum system；The water seal tank 9 is connect by least one delivery pump 7 with anaerobic fermentation tank 8.
The biogas slurry heater 2 is equipped with steam inlet and condensation-water drain, and purifying column 1 is heated for leading to steam.It is described
Biogas slurry cooler 5 is chilled brine or cooling water for the cooling medium of condensation.
Waste water is concentrated in vacuo the method recycled in a kind of biogas slurry, includes the following steps：
(a) waste water in a kind of above-mentioned biogas slurry is provided and is concentrated in vacuo the device recycled, it will be from anaerobic fermentation tank 8
Purifying column 1 is added in biogas slurry, and carrying out heating purification to purifying column 1 using biogas slurry heater 2 makes liquid be changed into indirect steam, secondary
Steam, which is entered by tower top after defoaming tank 3 carries out 1~3min of defoaming, enters back into 1~3min of stop in surge tank 4；The purifying column 1,
The pressure of biogas slurry heater 2 is -0.07~-0.08MPa, and 1 bottom temperature of the purifying column is 60~65 DEG C；The ingredient of biogas slurry is
Organic matter 35~50%, humic acid 10~25%, full nitrogen 0.6~1.5%, full phosphorus 0.2~0.5%, full potassium 0.5~1.0%, and
Some trace elements；1 pressure of purifying column is -0.07~-0.08MPa, according to the property of the nutritional ingredients such as organic matter in biogas slurry,
Nutritional ingredient will be destroyed when higher than 65 DEG C, and nitrogen when higher than 70 DEG C in biogas slurry can significantly reduce ,-
Biogas slurry can have both been set to be changed into indirect steam, not destroy biogas slurry under 0.07~-0.08MPa pressure, at a temperature of 60~65 DEG C
In the nutriments such as organic matter, and compared with atmospheric operation energy saving 60% or more；And NH4The volatile substances such as-N, sulfide only have
About 20% can enter defoaming tank 3 with indirect steam；
(b) liquid returns to purifying column in surge tank 4, and gas enters biogas slurry cooler 5, condensed out in biogas slurry cooler 5
Condensed water enter water seal tank 9；Gas is taken out by vacuum system after the gas not being condensed enters 6 gas-liquid separation of knockout drum
Enter water seal tank 9 from, condensed water and form fluid-tight, keeps height >=10m of condensed water in water seal tank 9；The defoaming tank 3, buffering
Tank 4, biogas slurry cooler 5, knockout drum 6 pressure be -0.08~-0.09MPa；The biogas slurry cooler 5 enters water seal tank 9
Condensed water temperature be 50~55 DEG C；Biogas slurry is 1.2~1.4cp in 60~65 DEG C of viscosity, and biogas slurry concentrates in purifying column 1
In the process, biogas slurry generation bubble enters defoaming tank 3 with indirect steam, and defoaming tank 3 act as defoaming in this part bubble, makes it
Becoming gas-liquid mixed state, the gas-liquid facilitated access for after surge tank 4 is sufficiently separated, if without defoaming treatment, the buffered tank of bubble 4
Into being condensed out in biogas slurry cooler 5, the content of nutriment in condensed water in water seal tank 9 is improved, reduces purification point
From effect；Water of the biogas slurry cooler in indirect steam under conditions of -0.08~-0.09MPa, 50~55 DEG C is all under condensation
Come, but H4The volatile substances such as-N, sulfide are discharged as fixed gas with vacuum system；
Since the operating pressure of system is -0.08~-0.09MPa, the density of condensed water is 1.0~1.05g/cm3, water seal
Pond 9 is open type and atmosphere, ensures system negative pressure, while ensureing cold according to this condition calculating to overcome atmospheric pressure
Lime set can continuously enter water seal tank 9, fluid-tight of the selection of water seal tank 9 more than or equal to 10m by potential difference；
(c) condensed water of water seal tank 9 is delivered to anaerobic fermentation tank 8 by delivery pump 7 and is recycled as fermentation supplement water.Water
Seal NH in the condensed water in pond 94The content ＜ 300ppm of-N, the content ＜ 300ppm of the volatile substances such as sulfide, as natural pond
The supplement water of gas fermentation recycles, and the temperature of condensed water, which is 50~55 DEG C, keeps the temperature of anaerobic fermentation tank 8 constant, shortens liquid
The time for changing and producing acid, improve the gas producing efficiency of anaerobic fermentation tank 8.
The vacuum system be used for purifying column 1, biogas slurry heater 2, defoaming tank 3, surge tank 4, biogas slurry cooler 5,
Knockout drum 6 provides negative pressure.Vacuum pump can be selected in the vacuum system.
Purified tower 1 purify after biogas slurry be filtered except after filter residue pure biogas slurry.1 tower reactor of purifying column is taken
Sample is analyzed, the content of material of biogas slurry after analysis purification, is mainly subject to the analysis data of organic value, and content carries out as needed
It determines, is filtered after sampling is qualified.Pure biogas slurry volume after concentrate is the 30~40% of former biogas slurry volume, and in former biogas slurry
The nutriments such as organic matter are not destroyed, improve the content of nutriment in the pure biogas slurry as organic fertilizer；Ensureing original
Make discharged wastewater met the national standard under conditions of biogas slurry fertilizer efficiency, it is energy-saving.
Filtering gained filter residue is sent to solid organic fertilizer production line and organic fertilizer is made as organic fertilizer production raw material, further carries
The high value of high biogas slurry resource utilizes.
Embodiment：
As shown in Figure 1, a kind of anaerobic fermentation biogas slurry vacuum concentrating apparatus, including purifying column 1, biogas slurry heater 2, defoaming tank
3, surge tank 4, biogas slurry cooler 5, knockout drum 6, water seal tank 9, anaerobic fermentation tank 8,1 top of the purifying column are equipped with raw material
Import, the material inlet are connect with anaerobic fermentation tank 8, and 1 top of the purifying column connect with 2 top of biogas slurry heater, purifies
1 lower part of tower is connect with 2 lower part of biogas slurry heater, and 1 top of the purifying column is connect with 3 bottom of defoaming tank；4 top of the defoaming tank
It is connect with 5 top of surge tank, 5 bottom of the surge tank is connect with 1 top of purifying column；The biogas slurry cooler 5 is equipped with cooling
Medium entrance, cooling media outlet, gas feed, gas vent and liquid outlet, 4 top of the surge tank and biogas slurry cooler
5 gas feeds connect, and 5 gas vent of biogas slurry cooler is connect with knockout drum 6,5 liquid discharge of biogas slurry cooler
Mouth is connect with water seal tank 9；6 bottom of the knockout drum is connect with water seal tank 9,6 top of the knockout drum and vacuum pump
Connection；The water seal tank 9 is connect by least one delivery pump 7 with anaerobic fermentation tank 8.
The biogas slurry heater 2 is equipped with steam inlet and condensation-water drain, and purifying column 1 is heated for leading to steam.It is described
Biogas slurry cooler 5 is circulation cooling water for the cooling medium of condensation.
Waste water is concentrated in vacuo the method recycled in a kind of biogas slurry, includes the following steps：
(a) waste water in a kind of above-mentioned biogas slurry is provided and is concentrated in vacuo the device recycled, it will be from anaerobic fermentation tank 8
Purifying column 1 is added in biogas slurry, and carrying out heating purification to purifying column 1 using biogas slurry heater 2 makes liquid be changed into indirect steam, secondary
Steam, which is entered by tower top after defoaming tank 3 carries out 1~3min of defoaming, enters back into 1~3min of stop in surge tank 4；The purifying column 1,
The pressure of biogas slurry heater 2 is -0.07~-0.08MPa, and 1 bottom temperature of the purifying column is 60~65 DEG C；
(b) liquid returns to purifying column 1 in surge tank 4, and gas enters biogas slurry cooler 5, condensed out in biogas slurry cooler 5
Condensed water enter water seal tank 9；The gas not being condensed enter gas after 6 gas-liquid separation of knockout drum detached by vacuum pump,
Condensed water enters water seal tank 9 and forms fluid-tight, keeps height >=10m of condensed water in water seal tank 9；The defoaming tank 3, surge tank 4,
Biogas slurry cooler 5, knockout drum 6 pressure be -0.08~-0.09MPa；The biogas slurry cooler enters the condensation of water seal tank
The temperature of water is 50~55 DEG C；
(c) water of water seal tank 9 is delivered to anaerobic fermentation tank 8 by delivery pump 7 and is recycled as fermentation supplement water.
Purified tower 1 purify after biogas slurry by be delivered to bag filter cross filter out filter residue after pure biogas slurry, as organic
Fertilizer is applied to farmland.Wherein filter residue is sent to solid organic fertilizer production line as organic fertilizer production raw material.
Claims (4)
1. waste water is concentrated in vacuo the device recycled in a kind of biogas slurry, it is characterised in that：Including purifying column, biogas slurry heater,
Tank, surge tank, biogas slurry cooler, knockout drum, water seal tank, anaerobic fermentation tank are defoamed, the purifying column top is equipped with raw material
Import, the material inlet are connect with anaerobic fermentation tank, are connect, under purifying column at the top of the purifying column top and biogas slurry heater
Portion is connect with biogas slurry heater lower part, is connect with defoaming pot bottom at the top of the purifying column；The defoaming tank top and surge tank
Top connects, and the buffering pot bottom is connect with purifying column top；The biogas slurry cooler is equipped with cooling medium inlet, cooling
Media outlet, gas feed, gas vent and liquid outlet, the surge tank top are connect with biogas slurry cooler gas import,
The biogas slurry cooler gas outlet is connect with knockout drum, and the biogas slurry cooler liquid outlet is connect with water seal tank；Institute
It states gas-liquid separation pot bottom to connect with water seal tank, the gas-liquid separation tank top is connect with vacuum system；The water seal tank passes through
At least one delivery pump is connect with anaerobic fermentation tank.
2. waste water is concentrated in vacuo the device recycled in a kind of biogas slurry according to claim 1, it is characterised in that：It is described
Biogas slurry heater is equipped with steam inlet and condensation-water drain, and purifying column is heated for leading to steam.
3. waste water is concentrated in vacuo the device recycled in a kind of biogas slurry according to claim 1, it is characterised in that：It is described
Biogas slurry cooler is chilled brine or cooling water for the cooling medium of condensation.
4. waste water is concentrated in vacuo the device recycled in a kind of biogas slurry according to claim 1, it is characterised in that：It is described
Vacuum system be used to provide to purifying column, biogas slurry heater, defoaming tank, surge tank, biogas slurry cooler, knockout drum it is negative
Pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721765564.XU CN207918470U (en) | 2017-12-15 | 2017-12-15 | Waste water is concentrated in vacuo the device recycled in a kind of biogas slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721765564.XU CN207918470U (en) | 2017-12-15 | 2017-12-15 | Waste water is concentrated in vacuo the device recycled in a kind of biogas slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207918470U true CN207918470U (en) | 2018-09-28 |
Family
ID=63606490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721765564.XU Expired - Fee Related CN207918470U (en) | 2017-12-15 | 2017-12-15 | Waste water is concentrated in vacuo the device recycled in a kind of biogas slurry |
Country Status (1)
| Country | Link |
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| CN (1) | CN207918470U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734146A (en) * | 2017-12-15 | 2019-05-10 | 自贡佳禾新能源科技有限公司 | Waste water is concentrated in vacuo the method and device recycled in a kind of biogas slurry |
| CN112516915A (en) * | 2020-12-31 | 2021-03-19 | 安徽联谊药业股份有限公司 | Granulator is used in western medicine processing with antiseized function that connects |
-
2017
- 2017-12-15 CN CN201721765564.XU patent/CN207918470U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734146A (en) * | 2017-12-15 | 2019-05-10 | 自贡佳禾新能源科技有限公司 | Waste water is concentrated in vacuo the method and device recycled in a kind of biogas slurry |
| CN112516915A (en) * | 2020-12-31 | 2021-03-19 | 安徽联谊药业股份有限公司 | Granulator is used in western medicine processing with antiseized function that connects |
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Granted publication date: 20180928 Termination date: 20211215 |