CN112159256A - Process for producing organic fertilizer from kitchen waste - Google Patents
Process for producing organic fertilizer from kitchen waste Download PDFInfo
- Publication number
- CN112159256A CN112159256A CN202010969477.6A CN202010969477A CN112159256A CN 112159256 A CN112159256 A CN 112159256A CN 202010969477 A CN202010969477 A CN 202010969477A CN 112159256 A CN112159256 A CN 112159256A
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- Prior art keywords
- kitchen waste
- water
- fermentation
- organic fertilizer
- waste
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/02—Apparatus for the manufacture
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
-
- 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
Abstract
The invention provides a process for producing an organic fertilizer from kitchen waste, which comprises the following steps: step 1: the kitchen waste is intensively recycled into a recycling bin; step 2: sending the kitchen waste in the recovery bin into a crushing and dehydrating machine for crushing, extruding and dehydrating; and step 3: feeding the kitchen waste after crushing in the step 2 into a temperature-controlled fermentation system; the separated water and oil are sent into a water-oil separation device for oil-water separation; wherein the temperature control fermentation system comprises a fermentation heating bin, a stirring rod and a strain conveying distributor; a plurality of stirring rods are sequentially arranged in the fermentation heating bin from top to bottom in parallel; wherein the bottom of the fermentation heating bin is provided with a water filtering plate; the top of the fermentation heating bin is sequentially provided with a feeding hole, a strain conveying distributor and a pressure valve; the puddler is spiral puddler and the surface arranges a plurality of in proper order and assists the stirring subassembly. And 4, step 4: and (4) feeding the semi-finished organic fertilizer produced after fermentation in the step (3) into a waste residue collection processor.
Description
Technical Field
The invention relates to a kitchen waste treatment process, in particular to a process for producing an organic fertilizer from kitchen waste.
Background
With the rapid development of cities, the economic strength of people has been significantly improved, and the large amount of material production, consumption and waste generation follow. According to statistics, the average annual output of urban garbage in China reaches 1.5 hundred million t, and the urban garbage continuously increases at an average speed of 8-10% per year. The kitchen waste is one of the main components of the urban waste, the food industry rises rapidly, the yield of the kitchen waste is increased continuously, statistics shows that the kitchen waste in China accounts for 37% -62% of the approximate range of the proportion of the urban domestic waste, and the quantity of the kitchen waste generated in the major cities in China is not less than 6000 million each year. A large amount of kitchen waste has developed into a stubborn disease which troubles urban development and environment.
The kitchen waste has bad apparent properties, high water content and easy-to-eat characteristics, and has great influence on urban environment; in addition, due to the complexity of the sources of the kitchen waste, serious virus pollution exists, and the public health safety of cities is threatened; the treatment mode of directly taking the feed as the animal feed for a long time is not proper, various animal plagues are easily caused, and the danger of polluting food chains exists, thus threatening the health and safety of human beings. In view of the environment and public health risks of kitchen waste, a plurality of cities in China have come out of the kitchen waste disposal management methods in succession, such as food waste management methods in Shanghai city, food waste collection, transportation, treatment and management methods in Beijing city, food waste management methods in Guangzhou city and the like which have clearly specified the collection, transportation, treatment and disposal of the food waste, and the food waste which is not scientifically treated is forbidden to be used as pig feed. Therefore, the treatment and disposal of the kitchen waste with the functions of recycling, reducing and harmlessness is urgent.
Disclosure of Invention
In order to solve the problems, the invention discloses a process for producing an organic fertilizer by kitchen waste, which comprises 70% of straws, 24.9% of traditional Chinese medicine residues, 5% of kitchen waste and 0.1% of strains, wherein the collection and treatment of the kitchen waste comprise the following steps:
step 1: the kitchen waste is intensively recycled into a recycling bin;
step 2: sending the kitchen waste in the recovery bin into a crushing and dehydrating machine for crushing, extruding and dehydrating;
and step 3: feeding the kitchen waste after crushing in the step 2 into a temperature-controlled fermentation system; the separated water and oil are sent into a water-oil separation device for oil-water separation; wherein the temperature control fermentation system comprises a fermentation heating bin, a stirring rod and a strain conveying distributor; a plurality of stirring rods are sequentially arranged in the fermentation heating bin from top to bottom in parallel; one end of each stirring rod is fixedly connected with a stirring motor; wherein the bottom of the fermentation heating bin is provided with a water filtering plate; a collecting bin is arranged below the water filtering plate; the top of the fermentation heating bin is sequentially provided with a feeding hole, a strain conveying distributor and a pressure valve; wherein the strain conveying distributor is communicated and connected with a strain conveying pipe in the fermentation heating bin, and a plurality of conveying ports are arranged on the strain conveying pipe; the stirring rod is a spiral stirring rod, a plurality of auxiliary stirring assemblies are sequentially arranged on the surface of the stirring rod, and each auxiliary stirring assembly comprises a base plate and a stirring shovel; a second sieve plate is arranged on the discharging bin at the bottom of the fermentation heating bin; wherein a conveying auger is arranged above the second sieve plate.
Delivering the kitchen waste crushed by extrusion into a fermentation heating bin, driving a stirring rod to rotate by a stirring motor, delivering a strain delivery distributor into a strain delivery pipe, delivering the strain into the fermentation heating bin through a delivery port in the strain delivery pipe, delivering residual water-oil liquid into a collection bin through a water filtering plate in the stirring process, and adding kitchen waste and strains to a stirring assembly on the stirring rod to be uniformly stirred; finally discharging through a discharge port, and conveying the semi-finished organic fertilizer into a waste residue collection and treatment machine through a conveying auger.
And 4, step 4: feeding the semi-finished organic fertilizer produced after fermentation in the step 3 into a waste residue collection processor;
and 5: wherein, after the oil-water separation in the step 2, the water is used for compost fermentation, and the separated oil is recycled to become the microbial strain nutrient solution.
The invention further improves that: and (3) filtering the dehydrated water in the step (2) through two layers of 180-mesh water filtering membranes, discharging the filtered water into an oil-water separator, circularly utilizing the water pump for the secondary use inside wastewater equipment, reducing the discharge of wastewater, performing three-layer filtering treatment on the discharged wastewater to reach the discharge standard, and fermenting the discharged wastewater as organic fertilizer compost to adjust the water content.
The invention further improves that: the waste oil separated in the step 2 is directly filled into a barrel to be used as a nutrient for producing microbial strains.
The invention further improves that: and 2, crushing the kitchen waste by using a spiral extrusion type crushing principle.
The invention further improves that: one end of the fermentation heating bin is provided with a temperature control display.
The invention further improves that: the backing plate is locked and fixed on the stirring rod through the bolt, and is convenient to assemble and maintain.
The invention has the beneficial effects that: the kitchen waste is treated by the microbial technology, converted into organic fertilizer production auxiliary materials and finally produced into commercial organic fertilizers, so that the kitchen waste is completely treated, pollution is avoided, waste is changed into valuable, and resource recycling is realized.
Wherein kitchen waste and food garbage integration processing system advantage
1. High treatment efficiency and short treatment time.
2. Low energy consumption and no discharge.
3. All the treatment is carried out without pollution.
4. The automation degree is high, and the device is unattended.
5. The method does not need to increase equipment or occupy new land, and has low operation cost by utilizing the existing plant area of the company.
Drawings
FIG. 1 is a schematic diagram of a temperature-controlled fermentation system according to the present invention;
list of reference numerals:
wherein 1-fermentation heating chamber; 2-a stirring rod; 4-a stirring motor; 5-a water filtering plate; 6, collecting a bin; 7-a feed inlet; 8-strain conveying distributor; 9-a pressure valve; 10-a bacterium conveying pipe; 11-a backing plate; 12-stirring and shoveling; 13-a second screen deck; 14-conveying the auger; 15-temperature control display.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The process for producing the organic fertilizer from the kitchen waste comprises 70% of straws, 24.9% of traditional Chinese medicine residues, 5% of kitchen waste and 0.1% of strains, wherein the kitchen waste collection treatment comprises the following steps: comprises the following steps of (a) carrying out,
step 1: the kitchen waste is intensively recycled into a recycling bin;
crushing and dehydrating the kitchen waste by using a spiral extrusion type crushing principle in the step 2; the dehydration is filtered by two layers of 180-mesh water filtering membranes, and then the wastewater is discharged into an oil-water separator, and is recycled by a water pump for secondary utilization inside wastewater equipment, so that the discharge of the wastewater is reduced, the discharged wastewater is subjected to three-layer filtering treatment to reach the discharge standard, and the discharged wastewater is used as organic fertilizer compost for fermentation and water adjustment; and the separated waste oil is directly filled into a barrel to be used as a nutrient for producing microbial strains. .
And step 3: feeding the kitchen waste after crushing in the step 2 into a temperature-controlled fermentation system; the separated water and oil are sent into a water-oil separation device for oil-water separation; wherein the temperature control fermentation system comprises a fermentation heating bin 1, a stirring rod 2 and a strain conveying distributor 8; the temperature control display 15 is arranged at one end of the fermentation heating chamber 1.
A plurality of stirring rods 2 are sequentially arranged in the fermentation heating bin 1 from top to bottom side by side; one end of each stirring rod 2 is fixedly connected with a stirring motor 4; wherein the bottom of the fermentation heating chamber 1 is provided with a water filtering plate 5; a collecting bin 6 is arranged below the water filtering plate 5; the top of the fermentation heating bin 1 is sequentially provided with a feed inlet 7, a strain conveying distributor 8 and a pressure valve 9; wherein the strain conveying distributor 8 is communicated and connected with a strain conveying pipe 10 in the fermentation heating bin 1, wherein a plurality of conveying ports are arranged on the strain conveying pipe 10; the stirring rod 2 is a spiral stirring rod, a plurality of auxiliary stirring assemblies are sequentially arranged on the surface of the stirring rod, and each auxiliary stirring assembly comprises a base plate 11 and a stirring shovel 12; the backing plate 11 is locked and fixed on the stirring rod 2 through a bolt; a discharging bin at the bottom of the fermentation heating bin 1 is provided with a second sieve plate 13; wherein a conveying auger 14 is arranged above the second sieve plate 13.
Delivering the kitchen waste crushed by extrusion into a fermentation heating bin 1, driving a stirring rod 2 to rotate by a stirring motor 4, delivering strains into a strain delivery pipe 10 by a strain delivery distributor 8, delivering the strains into the fermentation heating bin 1 through a delivery port in the strain delivery pipe 10, delivering residual water-oil liquid into a collection bin 6 through a water filter plate in the stirring process, and adding kitchen waste and strains to a stirring assembly on the stirring rod 2 to stir uniformly; finally, discharging is carried out through a discharge port 7, and the semi-finished organic fertilizer is conveyed into a waste residue collection processor through a conveying auger 14.
And (3) screening out microbial flora with high salt tolerance, and quickly (24-48 hours) treating the collected kitchen waste through the microbial flora to convert the kitchen waste into organic fertilizer auxiliary materials for producing organic fertilizers.
And 4, step 4: feeding the semi-finished organic fertilizer produced after fermentation in the step 3 into a waste residue collection processor;
and 5: wherein, after the oil-water separation in the step 2, the water is used for compost fermentation, and the separated oil is recycled to become the microbial strain nutrient solution.
According to the present embodiment, different floras in the microbial flora exert different effects according to the state change in the heating fermentation bin, and the kitchen waste is rapidly and effectively digested and decomposed into the organic fertilizer auxiliary materials.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (6)
1. A process for producing organic fertilizer by kitchen waste is characterized by comprising the following steps: comprises 70 percent of straws, 24.9 percent of traditional Chinese medicine residues, 5 percent of kitchen waste and 0.1 percent of strains, wherein the collection and treatment of the kitchen waste comprise the following steps:
step 1: the kitchen waste is intensively recycled into a recycling bin;
step 2: sending the kitchen waste in the recovery bin into a crushing and dehydrating machine for crushing, extruding and dehydrating;
and step 3: feeding the kitchen waste after crushing in the step 2 into a temperature-controlled fermentation system; the separated water and oil are sent into a water-oil separation device for oil-water separation; wherein the temperature control fermentation system comprises a fermentation heating bin (1), a stirring rod (2) and a strain conveying distributor (8); a plurality of stirring rods (2) are sequentially arranged in the fermentation heating bin (1) from top to bottom side by side; one end of each stirring rod (2) is fixedly connected with a stirring motor (4); wherein the bottom of the fermentation heating bin (1) is provided with a water filtering plate (5); a collecting bin (6) is arranged below the water filtering plate (5); the top of the fermentation heating bin (1) is sequentially provided with a feeding hole (7), a strain conveying distributor (8) and a pressure valve (9); wherein the strain conveying distributor (8) is communicated and connected with a strain conveying pipe (10) in the fermentation heating bin (1), and a plurality of conveying ports are arranged on the strain conveying pipe (10); the stirring rod (2) is a spiral stirring rod, a plurality of auxiliary stirring components are sequentially arranged on the surface of the stirring rod, and each auxiliary stirring component comprises a base plate (11) and a stirring shovel (12); a discharge bin at the bottom of the fermentation heating bin (1) is provided with a second sieve plate (13); wherein a conveying auger (14) is arranged above the second sieve plate (13);
and 4, step 4: feeding the semi-finished organic fertilizer produced after fermentation in the step 3 into a waste residue collection processor;
and 5: wherein, after the oil-water separation in the step 2, the water is used for compost fermentation, and the separated oil is recycled to become the microbial strain nutrient solution.
2. The process for producing the organic fertilizer from the kitchen waste according to claim 1, which is characterized by comprising the following steps: and (3) filtering the dehydrated water in the step (2) through two layers of 180-mesh water filtering membranes, discharging the filtered water into an oil-water separator, circularly utilizing the water pump for the secondary use inside wastewater equipment, reducing the discharge of wastewater, performing three-layer filtering treatment on the discharged wastewater to reach the discharge standard, and fermenting the discharged wastewater as organic fertilizer compost to adjust the water content.
3. The process for producing the organic fertilizer from the kitchen waste according to claim 1, which is characterized by comprising the following steps: and (3) directly filling the waste oil separated in the step (3) into a barrel to be used as a 'nutrient' for producing microbial strains.
4. The process for producing the organic fertilizer from the waste of the kitchen waste and the kitchen waste of the chair according to claim 1, which is characterized in that: and 2, crushing the kitchen waste by using a spiral extrusion type crushing principle.
5. The process for producing the organic fertilizer from the waste of the kitchen waste and the kitchen waste of the chair according to claim 1, which is characterized in that: one end of the fermentation heating bin (1) is provided with a temperature control display (15).
6. The process for producing the organic fertilizer from the waste of the kitchen waste and the kitchen waste of the chair according to claim 1, which is characterized in that: the backing plate (11) is locked and fixed on the stirring rod (2) through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969477.6A CN112159256A (en) | 2020-09-15 | 2020-09-15 | Process for producing organic fertilizer from kitchen waste |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010969477.6A CN112159256A (en) | 2020-09-15 | 2020-09-15 | Process for producing organic fertilizer from kitchen waste |
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| CN112159256A true CN112159256A (en) | 2021-01-01 |
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| CN202010969477.6A Pending CN112159256A (en) | 2020-09-15 | 2020-09-15 | Process for producing organic fertilizer from kitchen waste |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636872A (en) * | 2021-08-24 | 2021-11-12 | 郑奕锋 | Kitchen waste treatment device |
| CN114425557A (en) * | 2022-04-06 | 2022-05-03 | 深圳市合威电器有限公司 | Internet-based stirrer control system and method for kitchen waste treatment |
| CN116099860A (en) * | 2022-12-27 | 2023-05-12 | 天富科技(丽水)有限公司 | Chinese medicine dreg treatment process flow and application thereof |
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| CN114425557B (en) * | 2022-04-06 | 2022-06-28 | 深圳市合威电器有限公司 | Internet-based stirrer control system and method for kitchen waste treatment |
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Application publication date: 20210101 |