CN106517392B - The recycling technique of molasses alcohol waste water - Google Patents
The recycling technique of molasses alcohol waste water Download PDFInfo
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- CN106517392B CN106517392B CN201611077061.3A CN201611077061A CN106517392B CN 106517392 B CN106517392 B CN 106517392B CN 201611077061 A CN201611077061 A CN 201611077061A CN 106517392 B CN106517392 B CN 106517392B
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- molasses
- spirit
- spent liquor
- concentrating spent
- waste water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
- C02F2103/325—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters from processes relating to the production of wine products
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of recycling techniques of molasses alcohol waste water, comprising: Step 1: concentration: alcohol waste water being concentrated to 60~65 ° of BX from 8~12 ° of BX using Alcohol Plant's destilling tower waste heat, obtains molasses-spirit concentrating spent liquor；Step 2: heating: furnace body being heated to 600 DEG C or more with coal dust；Step 3: burning: reaching 600 DEG C or more to the intracorporal furnace temperature of furnace, molasses-spirit concentrating spent liquor is sprayed into the burner hearth of furnace body, stop putting into coal dust into furnace body after molasses-spirit concentrating spent liquor normal combustion, torch firing molasses-spirit concentrating spent liquor, control furnace temperature is maintained at 700 DEG C~1000 DEG C always later；Step 4: drying: the high-temperature flue gas caused by molasses-spirit concentrating spent liquor torch firing dries the wet filter mud that water content is 70%, and wet filter mud is by-product caused by cane sugar manufacture.The heat utilization rate of molasses-spirit concentrating spent liquor is more efficient；Tail gas only has that steam is pollution-free, and lime-ash can be recycled preferably and not cause secondary pollution.
Description
Technical field
The present invention relates to a kind of recycling techniques of molasses alcohol waste water.
Background technique
Molasses alcohol waste water refers to using cane molasses as raw material, it is fermented after mash distilled in alcohol topping still,
Steam the waste liquid being discharged after alcohol through topping still bottom.The mode of Alcohol Production is different, and the waste liquid amount and concentration of generation are also different,
Using normal pressure column distillation, producing 1 ton of alcohol and generate 13~15 tons of (averagely by 14 tons) waste liquids, concentration is 8~12 ° of BX (brix),
One ton of alcohol is produced using differential distillation (or atmospheric tower adds reboiler) and generates 11~13 tons of waste liquids, concentration is 15.50~
16.80 ° of BX reduce 21% than with the wastewater flow rate of air-distillation.
Molasses alcohol waste water has the characteristics that high chroma, highly acid (pH3.5~4.5), is that a kind of corrosivity is extremely strong useless
Water has very strong permeability.Pond overlong time is stored, can permeate the ground water, and polluted underground water source causes underground water cannot
It utilizes, especially in the area for lacking fresh water, will cause serious consequence.Root according to the relevant information, a day squeeze 2500 tons
Sugar refinery of sugarcane, the alcohol effluent amount of pollutant being discharged daily are equivalent to the daily sanitary sewage in city of 350,000 populations
Amount of pollutant.How alcohol waste water handles the thing of always manufacturer's most headache, some enterprises have to establish huge
Waste liquid is firmly lockked, prevents from overflowing, maintenance cost is high by oxidation pond.
Currently, the usual way of processing alcohol waste water are as follows:
1, cane planting is directly used in after diluting.
It can be used as fertilizer application in cane planting.Alcohol waste water is as sugarcane Fertilizer application, first oxidation-treated, tune
PH value is to PH=6 or so.It ditches when use 30 centimeters or so deep, usual sugarcane once sprays 5 tons of waste liquids per acre, about quite
50 kilograms of urea, 100 kilograms of phosphate fertilizer, 80 kilograms of potash fertilizer of application；Sugarcane field suitably sprays alcohol waste water, can play water drenching drought resisting
Effect.This kind of processing method also has a kind of hidden danger, i.e., if dosage and concentration are improper, not only sugarcane plant is dead, and waste liquid also flows
Enter rivers, aggravates the pollution to environment.
2, as other raw materials
Level-one fodder yeast is produced using alcohol effluent, for preparing production feed；It is raw by raw material of molasses alcohol waste liquid
Produce caramel colorant；Certain active genes of alcohol effluent can increase strength of cement, and 4-5% concentrate is added in mixed mud,
Cement consumption 10% or so can be reduced.
3, condensed combustion generates electricity
Condensed combustion processing is exactly that alcohol effluent is concentrated to 60~70 ° of BX, and concentrate is then sent to boiler atomizing combustion
It burns, the steam generated after burning is first used to generate electricity, and back pressure steam is used to distilled spirit and concentrating spent liquor again.Ashes after burning due to
Height containing potassium can be used as potash fertilizer.There is certain economic benefit.Outsourcing coal and outer power purchase have been saved in this way.To bring economic effect
Benefit.
Summary of the invention
In view of the above technical problems, the present invention develops a kind of utilization rate height, at low cost, free of contamination molasses alcohol waste water
Recycling technique.
Technical solution provided by the invention are as follows:
A kind of recycling technique of molasses alcohol waste water, comprising:
Step 1: concentration: alcohol waste water is concentrated to 60~65 ° of BX from 8~12 ° of BX using Alcohol Plant's destilling tower waste heat,
Obtain molasses-spirit concentrating spent liquor；
Step 2: heating: furnace body being heated to 600 DEG C or more with coal dust；
Step 3: burning: reaching 600 DEG C or more to the intracorporal furnace temperature of furnace, it is dense that molasses-spirit is sprayed into the burner hearth of furnace body
Contracting waste liquid stops putting into coal dust into furnace body after molasses-spirit concentrating spent liquor normal combustion, torch firing molasses-spirit thickened waste
Liquid, control furnace temperature is maintained at 700 DEG C~1000 DEG C always later；
Step 4: drying: it is 70% that the high-temperature flue gas caused by molasses-spirit concentrating spent liquor torch firing, which dries water content,
Wet filter mud, the wet filter mud are by-product caused by cane sugar manufacture.
Preferably, in the recycling technique of the molasses alcohol waste liquid, in the step 3, furnace is controlled always later
Temperature is maintained at 800 DEG C.
Preferably, in the recycling technique of the molasses alcohol waste liquid, in the step 4, using high pressure blower and
High-temperature flue gas caused by molasses-spirit concentrating spent liquor torch firing is collected and is introduced in Drying by air-introduced machine, while to Drying
It is inside continuously added to wet filter mud, wet filter mud is dried into the dry filter mud that water content is 40~45% by high-temperature flue gas.
Preferably, in the recycling technique of the molasses alcohol waste liquid, high-temperature flue gas is reached through filter mud overly moist and is dried
The tail portion of cylinder, temperature are down to 40~60 DEG C, and remaining thermal energy and dust are removed through two stage cyclone separation dedusting and level-one biology tail gas again
The processing of dirt deodoriser becomes aqueous vapor row Xiang great Qi up to standard.
Preferably, in the recycling technique of the molasses alcohol waste liquid, in the step 4, molasses-spirit thickened waste
Lime-ash caused by liquid torch firing is recycled as organic fertilizer raw material.
Preferably, in the recycling technique of the molasses alcohol waste liquid, in the step 4, the dry filter mud is utilized
Produce organic fertilizer.
The recycling technique of molasses alcohol waste liquid of the present invention has the advantages that
1, the present invention and the maximum difference of condensed combustion power generation are not need steam pipework, no pressure piping, securely and reliably
Maintenance is few, and thermal energy directly contacts wet filter mud and is absorbed and used, and the heat utilization rate of molasses-spirit concentrating spent liquor is more efficient.
2, the present invention use molasses-spirit concentrating spent liquor instead of coal as the energy, and energy-saving and emission-reduction, tail gas only has steam without dirt
Dye, lime-ash can be recycled preferably and not cause secondary pollution.The calorific value of general mark coal is 5000-6000 kilocalorie/kg, big by 5000
Card/kg meter, molasses-spirit concentrating spent liquor calorific value are that 1700-1800 kilocalorie/kg is calorific value of coal based on 1700 kilocalories/kg
34%, i.e. 1 ton of concentrate is equal to 0.34 ton of coal.The present invention turns waste into wealth molasses alcohol waste water, make it is a kind of reliable,
The safe and clean energy.
3, molasses-spirit concentrating spent liquor day burning disposal amount up to 100 tons or more (be equivalent to and 400 tons of waste water is not concentrated), day
Wet filter mud (70% moisture) is dried up to 500 tons or more, lime-ash recycles day up to 12 tons or so.
4, the lime-ash of molasses-spirit concentrating spent liquor residues of combustion is rich in the nutriments such as calcium, potassium, and no hygroscopicity, water
It is point low, mix to knock down in fermentation tank with the raw material of organic fertilizer by a certain percentage after recycling and ferment, can be used as a kind of water transfer point with
The raw material of nutrient uses.
Detailed description of the invention
Fig. 1 is the flow chart of one embodiment of the recycling technique of molasses alcohol waste liquid of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
As shown in Figure 1, the present invention provides a kind of recycling technique of molasses alcohol waste water, comprising:
Step 1: concentration: alcohol waste water is concentrated to 60~65 ° of BX from 8~12 ° of BX using Alcohol Plant's destilling tower waste heat,
Obtain molasses-spirit concentrating spent liquor.
Step 2: heating: furnace body (hot-blast stove) being heated to 600 DEG C or more with coal dust.
Step 3: burning: reaching 600 DEG C or more to the intracorporal furnace temperature of furnace, it is dense that molasses-spirit is sprayed into the burner hearth of furnace body
Contracting waste liquid stops putting into coal dust into furnace body after molasses-spirit concentrating spent liquor normal combustion, torch firing molasses-spirit thickened waste
Liquid, control furnace temperature is maintained at 700 DEG C~1000 DEG C always later.Specifically, it can be sprayed by high pressure sprays fog equipment into burner hearth
Penetrate molasses-spirit concentrating spent liquor.
Step 4: drying: it is 70% that the high-temperature flue gas caused by molasses-spirit concentrating spent liquor torch firing, which dries water content,
Wet filter mud, the wet filter mud are by-product caused by cane sugar manufacture.The biological energy source of organic matter in molasses-spirit concentrating spent liquor, warp
After crossing burning, it is transformed into thermal energy, by the double action of air blast and air inducing, high-temperature flue gas is made to act on organic fertilizer raw material " wet filter
Mud " makees drying pretreatment to wet filter mud.
Above-mentioned wet filter mud is the accessory products that sugar clarification process generates, it is one of large byproduct of cane sugar manufacture,
Containing sugarcane fibre, sucrose, the condensation colloid with cerosin, protein, calcium phosphate etc., rich in battalion required for production estimation
Element is supported, is a kind of good organic resource.
In a preferred embodiment, in the recycling technique of the molasses alcohol waste liquid, in the step 3, it
Control furnace temperature is maintained at 800 DEG C always afterwards.
In a preferred embodiment, in the recycling technique of the molasses alcohol waste liquid, in the step 4, benefit
High-temperature flue gas caused by molasses-spirit concentrating spent liquor torch firing is collected with high pressure blower and air-introduced machine and is introduced in Drying,
Wet filter mud is continuously added into Drying simultaneously, wet filter mud is dried into the dry filter mud that water content is 40~45% by high-temperature flue gas.
Specifically, the high-temperature flue gas that alcohol concentrating spent liquor torch firing generates is forced to receive through high pressure blower and air-introduced machine double action
Collect into four rotating drying rotating cylinders (26 meters long, 1.8 meters of diameter), while being continuously added to wet filter mud (about into Drying
70% moisture), thermal energy and flue dust are oven-dried rotating wet filter mud in cylinder and absorb mixing, and wet filter mud absorbs mixing and falls major part
Moisture is reduced to 40-45% by 70% after heat and dust.Dry filter mud is then sent through compost workshop (usually to be had for producing organic fertilizer
Machine fertilizer optimal initial ingredient water is divided into 50~60% moisture), the compost fermentation period can be shortened, reduce supplementary product consumption (water transfer point).
In a preferred embodiment, in the recycling technique of the molasses alcohol waste liquid, high-temperature flue gas is through overly moist
Filter mud reaches the tail portion of Drying, and temperature is down to 40~60 DEG C, and remaining thermal energy and dust separate dedusting and one through two stage cyclone again
The biological tails dedusting deodoriser processing of grade becomes aqueous vapor row Xiang great Qi up to standard.
In a preferred embodiment, in the recycling technique of the molasses alcohol waste liquid, in the step 4, sugar
Lime-ash caused by mulse essence concentrating spent liquor torch firing (as potassium ash) is recycled as organic fertilizer raw material.Burn the lime-ash (potassium generated
Ash) in potassium content it is high, be all recycled as organic fertilizer raw material.
In a preferred embodiment, in the recycling technique of the molasses alcohol waste liquid, in the step 4, benefit
Organic fertilizer is produced with the dry filter mud.
Embodiment one
A kind of recycling technique of molasses alcohol waste water, comprising:
Step 1: concentration: alcohol waste water is concentrated to 60~65 ° of BX from 8~12 ° of BX using Alcohol Plant's destilling tower waste heat,
Obtain molasses-spirit concentrating spent liquor；
Step 2: heating: furnace body (hot-blast stove) being heated to 600 DEG C or more with coal dust；
Step 3: burning: reaching 600 DEG C or more to the intracorporal furnace temperature of furnace, it is dense that molasses-spirit is sprayed into the burner hearth of furnace body
Contracting waste liquid stops putting into coal dust into furnace body after molasses-spirit concentrating spent liquor normal combustion, torch firing molasses-spirit thickened waste
Liquid, control furnace temperature is maintained at 800 DEG C always later；
Step 4: drying: utilizing high pressure blower and air-introduced machine by high temperature cigarette caused by molasses-spirit concentrating spent liquor torch firing
Gas is collected and is introduced in Drying, while wet filter mud is continuously added into Drying, and wet filter mud is dried by high-temperature flue gas to be contained
The dry filter mud that water is 40~45%；High-temperature flue gas reaches the tail portion of Drying through filter mud overly moist, and temperature is down to 40~60 DEG C, residual
Waste heat energy and dust separate dedusting and the processing of level-one biology tails dedusting deodoriser through two stage cyclone again, become aqueous vapor row up to standard
To atmosphere；Lime-ash caused by molasses-spirit concentrating spent liquor torch firing is recycled as organic fertilizer raw material；It is produced using the dry filter mud
Organic fertilizer.
The recycling technique of molasses alcohol waste liquid of the present invention has the advantage that
1, the present invention and the maximum difference of condensed combustion power generation are not need steam pipework, no pressure piping, securely and reliably
Maintenance is few, and thermal energy directly contacts wet filter mud and is absorbed and used, and the heat utilization rate of molasses-spirit concentrating spent liquor is more efficient.
2, the present invention use molasses-spirit concentrating spent liquor instead of coal as the energy, and energy-saving and emission-reduction, tail gas only has steam without dirt
Dye, lime-ash can be recycled preferably and not cause secondary pollution.The calorific value of general mark coal is 5000-6000 kilocalorie/kg, big by 5000
Card/kg meter, molasses-spirit concentrating spent liquor calorific value are that 1700-1800 kilocalorie/kg is calorific value of coal based on 1700 kilocalories/kg
34%, i.e. 1 ton of concentrate is equal to 0.34 ton of coal.The present invention turns waste into wealth molasses alcohol waste water, make it is a kind of reliable,
The safe and clean energy.
3, molasses-spirit concentrating spent liquor day burning disposal amount up to 100 tons or more (be equivalent to and 400 tons of waste water is not concentrated), day
Wet filter mud (70% moisture) is dried up to 500 tons or more, lime-ash recycles day up to 12 tons or so.
4, the lime-ash of molasses-spirit concentrating spent liquor residues of combustion is rich in the nutriments such as calcium, potassium, and no hygroscopicity, water
It is point low, mix to knock down in fermentation tank with the raw material of organic fertilizer by a certain percentage after recycling and ferment, can be used as a kind of water transfer point with
The raw material of nutrient uses.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (5)
1. a kind of recycling technique of molasses alcohol waste water characterized by comprising
Step 1: concentration: alcohol waste water being concentrated to 60~65 ° of BX from 8~12 ° of BX using Alcohol Plant's destilling tower waste heat, is obtained sugared
Mulse essence concentrating spent liquor；
Step 2: heating: furnace body being heated to 600 DEG C or more with coal dust；
Step 3: burning: reaching 600 DEG C or more to the intracorporal furnace temperature of furnace, molasses-spirit thickened waste is sprayed into the burner hearth of furnace body
Liquid stops putting into coal dust into furnace body after molasses-spirit concentrating spent liquor normal combustion, torch firing molasses-spirit concentrating spent liquor, it
Control furnace temperature is maintained at 700 DEG C ~ 1000 DEG C always afterwards；
Step 4: drying: being received high-temperature flue gas caused by molasses-spirit concentrating spent liquor torch firing using high pressure blower and air-introduced machine
Collect and be introduced in Drying, while being continuously added into Drying the wet filter mud that water content is 70%, high-temperature flue gas is by wet filter mud
It is dried into the dry filter mud that water content is 40 ~ 45%, the wet filter mud is by-product caused by cane sugar manufacture.
2. the recycling technique of molasses alcohol waste water as described in claim 1, which is characterized in that in the step 3, later
Always control furnace temperature is maintained at 800 DEG C.
3. the recycling technique of molasses alcohol waste water as described in claim 1, which is characterized in that high-temperature flue gas is through filter mud overly moist
The tail portion of Drying is reached, temperature is down to 40 ~ 60 DEG C, and remaining thermal energy and dust separate dedusting and level-one biology through two stage cyclone again
The processing of tails dedusting deodoriser becomes aqueous vapor row Xiang great Qi up to standard.
4. the recycling technique of molasses alcohol waste water as described in claim 1, which is characterized in that in the step 4, molasses
Lime-ash caused by alcohol concentrating spent liquor torch firing is recycled as organic fertilizer raw material.
5. the recycling technique of molasses alcohol waste water as described in claim 1, which is characterized in that in the step 4, utilize
The dry filter mud produces organic fertilizer.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602565A (en) * | 2009-07-15 | 2009-12-16 | 史海峰 | Process for treating dehydrated sludge in sewage treatment plant |
| CN102537982A (en) * | 2011-12-30 | 2012-07-04 | 广西武鸣县皎龙酒精能源有限公司 | Method for treating molasses alcohol waste water |
| CN105627331A (en) * | 2016-01-14 | 2016-06-01 | 霍奇志 | Muddy substance drying and incineration method and system |
-
2016
- 2016-11-30 CN CN201611077061.3A patent/CN106517392B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602565A (en) * | 2009-07-15 | 2009-12-16 | 史海峰 | Process for treating dehydrated sludge in sewage treatment plant |
| CN102537982A (en) * | 2011-12-30 | 2012-07-04 | 广西武鸣县皎龙酒精能源有限公司 | Method for treating molasses alcohol waste water |
| CN105627331A (en) * | 2016-01-14 | 2016-06-01 | 霍奇志 | Muddy substance drying and incineration method and system |
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Address after: 532703 200m west of 005 Township Road, natong Town, Long'an County, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Jinsui Ecological Technology Group Co.,Ltd. Address before: 532703 1752 km of Nanbai class II Highway, natong Town, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI JINSUI ECOLOGY TECHNOLOGY Co.,Ltd. |