CN111097783A - Harmless resource regeneration treatment equipment and process for kitchen waste and organic waste - Google Patents
Harmless resource regeneration treatment equipment and process for kitchen waste and organic waste Download PDFInfo
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- CN111097783A CN111097783A CN202010076432.6A CN202010076432A CN111097783A CN 111097783 A CN111097783 A CN 111097783A CN 202010076432 A CN202010076432 A CN 202010076432A CN 111097783 A CN111097783 A CN 111097783A
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses harmless resource regeneration treatment equipment for kitchen waste and organic waste, which at least comprises a kitchen receiving system, a pretreatment classification system, a metering system, a material pipeline closed conveying system, a subcritical water system, a granulation system, a drying system, a sewage treatment system, a deodorization system, a sundry sorting treatment system, a product quality inspection system, a biological logistics system, a boiler energy system, a packaging line, a finished product warehouse, a power supply system and a water supply system. Different from the currently and generally adopted anaerobic biogas energy treatment of kitchen waste, the method has the advantages of low investment, small occupied area, no influence of weather temperature environment in the resource regeneration treatment process, high resource regeneration efficiency, no secondary pollution, standard discharge and recycling and absorption of wastewater through pure water treatment, small load on environment, convenient and simple treatment, and particularly no worry about absorption of biogas residues and biogas slurry generated after anaerobic energy treatment.
Description
Technical Field
The invention relates to the technical field of kitchen waste, in particular to harmless resource regeneration treatment equipment and process for kitchen waste and organic waste.
Background
The kitchen waste is organic waste material which takes organic substances such as starch, dietary fiber, animal fat and the like as main components, and has the characteristics of high water content, easy decay and fermentation, souring and smelliness. The water content is about 85%, the impurity content in the solid is about 7-10%, and the density mass is about 1050 kg/cube.
The solid of the kitchen waste comprises food residues of rice and flour, vegetables, fruit peels, vegetable oil, animal oil, meat and fish residue bones, egg shells, waste tableware, plastics, paper towels and the like in terms of physical composition; from the chemical composition, starch, cellulose, protein, fat, inorganic salt and the like are included. Wherein, the solid organic matter is taken as the main material, the content of calcium chloride in the inorganic salt is higher, and simultaneously, a certain amount of trace elements such as calcium, magnesium, iron and the like are also contained. Compared with other household garbage and sludge, the kitchen garbage waste has the characteristics of high organic matter content, rich nutrition such as protein, vegetable fiber and grease, and higher recycling value.
Subcritical water has very large ion capacity, and thus has strong decomposition capability on organic matters. By utilizing subcritical water reaction treatment, the nutrient essence in the organic wastes of the kitchen can be extracted, wherein carbohydrate, fat and the like can be decomposed into glucose characteristic substances with short chain groups, protein can be decomposed into amino acid, various trace harmful chemical substances can be decomposed, and pathogens and viruses can be killed. Therefore, the kitchen waste is treated by the latest regeneration process of subcritical hydrothermal decomposition, and the obtained terminal resource product is safe fertilizer without harmful substances and feed for livestock, animals, aquatic products and the like.
The anaerobic methane energy treatment of the kitchen waste which is generally adopted at present has the advantages of large investment, large occupied area, low resource regeneration efficiency and serious secondary pollution due to the influence of weather temperature environment in the resource regeneration treatment process.
The person skilled in the art is dedicated to solving the above technical drawbacks.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to solve the problems of high investment, weather temperature environment influence and the like in the conventional energy-recovery treatment of the kitchen waste.
In order to achieve the technical purpose, the invention provides harmless resource regeneration treatment equipment for kitchen waste and organic waste, which at least comprises a kitchen receiving system, a pretreatment classification system, a metering system, a material pipeline closed conveying system, a subcritical water system, a granulation system, a drying system, a sewage treatment system, a deodorization system, a sundries sorting treatment system, a product quality inspection system, a biological fermentation system, a boiler energy system, a packaging line, a finished product warehouse and a power supply system water supply system, wherein the power supply system and the water supply system supply energy to the systems, the boiler energy system supplies energy to the subcritical water system, and materials received by the kitchen receiving system are conveyed to the pretreatment system through the material pipeline closed conveying system.
Preferably, the air that the kitchen received material system space was collected leads to deodorization system by the draught fan, simultaneously boiler energy system's draught fan also extracts this polluted space air and is combustion air, the kitchen received material system includes the shaftless conveyer of stainless steel at least.
Preferably, the classification pretreatment system is a set of special machines for containing water and stirring and flowing.
The invention also provides a harmless resource regeneration treatment process of the kitchen waste and the organic waste, which comprises the following steps:
step S1, the kitchen waste firstly enters a receiving system;
step S2, the kitchen waste enters a classification pretreatment system from the material receiving system to perform classification recovery of light floating substances, substances in water and sediment substances;
s3, after oil-water separation of the liquid in the recovered light floating substances, storing and selling the separated crude oil, and recycling or discharging the separated wastewater after wastewater treatment; other materials (plastics, wood chopsticks and the like) are respectively stored and disposed by classification;
s4, recovering heavy substances at the bottom, sending the bones into a crusher for crushing and utilization through sorting, and storing and disposing the rest substances (glass, porcelain, ironware and the like) in a classified manner;
and S5, extracting plastics, paper towels, fabrics and the like in the water layer by a special needle type salvage machine to obtain pure kitchen waste organic matters, recycling, dehydrating and crushing the kitchen waste organic matters, then enabling the kitchen waste organic matters to enter a subcritical water system for efficient and rapid decomposition and harmless treatment, and regenerating resources into fertilizer and feed materials.
Preferably, the material receiving system in step S1 is a sealed negative pressure space.
Preferably, the pretreatment classification system in step S2 is a set of substantially closed special machine for holding water and stirring to flow, the machine receives the kitchen waste from which large impurities are removed, and by the principle of specific gravity of water, various substances of the kitchen waste respectively take three postures of floating surface, water and sinking bottom in the stirring water, and generally, grease, plastics, wood chopsticks, partial textile fibers or tissues and the like on the floating surface; organic substances such as rice grains, fruit, vegetable and meat (part of plastics and textile fibers mixed in the water layer are lifted out of the water layer by a roller type needle hanging machine and separated); the submerged water is metal, ceramic glass, bone, silt and the like.
Preferably, the crude oil separated from the oil-water separation in step S4 is stored for sale, and the separated wastewater is recycled or discharged after being treated.
Preferably, in step S5, the feed material is subjected to biological bacterium palatability optimization, and then is subjected to extrusion granulation, drying and shaping to obtain a feed finished product or an organic fertilizer.
The invention has the beneficial effects that:
the invention is different from the anaerobic methane gas energy treatment of the kitchen waste which is generally adopted at present, has the advantages of less investment, small occupied area, no influence of weather temperature environment in the resource regeneration treatment process, high treatment and resource regeneration efficiency, no secondary pollution, standard discharge and recycling consumption of waste water through pure water treatment, small load on the environment, convenient and simple treatment, and particularly no worries about consumption of the methane slag and the methane liquid generated after the anaerobic energy treatment.
Drawings
FIG. 1 is a schematic diagram of an apparatus arrangement according to an embodiment of the present invention;
fig. 2 is a process diagram of an embodiment of the present invention.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Example (b):
as shown in fig. 1-2, a harmless resource regeneration treatment device for kitchen waste and organic waste at least comprises a kitchen receiving system, a pretreatment classification system, a metering system, a material pipeline closed conveying system, a subcritical water system, a granulation system, a drying system, a sewage treatment system, a deodorization system, a sundries sorting treatment system, a product quality inspection system, a biological bin system, a boiler energy system, a packaging line, a finished product warehouse, a power supply system and a water supply system, wherein the power supply system and the water supply system supply energy to the systems, the boiler energy system supplies energy to the subcritical water system, and materials received by the kitchen receiving system are conveyed to the pretreatment classification system through the material pipeline closed conveying system.
Specifically, the air that kitchen was received material system and is collected is introduced deodorizing system by the draught fan, and boiler energy system's draught fan also extracts this space contaminated air and be combustion air simultaneously, and kitchen is received material system and is included stainless steel shaftless conveyer at least.
Specifically, the pretreatment system is a set of special machine for containing water and stirring to flow.
The invention relates to a harmless resource regeneration treatment process of kitchen waste and organic waste, which comprises the following steps:
step S1, the kitchen waste firstly enters a receiving system;
step S2, the kitchen waste enters a classification pretreatment system from the material receiving system to perform classification recovery of light floating substances, substances in water and sediment substances;
s3, after oil-water separation of the liquid in the recovered light floating substances, storing and selling the separated crude oil, and recycling or discharging the separated wastewater after wastewater treatment; other materials (plastics, wood chopsticks and the like) are respectively stored and disposed by classification;
s4, recovering heavy substances at the bottom, sending the bones into a crusher for crushing and utilization through sorting, and storing and disposing the rest substances (glass, porcelain, ironware and the like) in a classified manner;
and S5, extracting plastics, paper towels, fabrics and the like in the water layer by a special needle type salvage machine to obtain pure kitchen waste organic matters, recycling, dehydrating and crushing the kitchen waste organic matters, then enabling the kitchen waste organic matters to enter a subcritical water system for efficient and rapid decomposition and harmless treatment, and regenerating resources into fertilizer and feed materials.
In specific implementations, the present invention may specifically include:
the kitchen waste is collected and transported into a factory by a special vehicle outside the factory, and is recorded by pound weighing after entering the factory.
Before the weighed vehicle reaches the designated position according to the instruction, the closed door can be automatically opened, and the kitchen waste is poured into a receiving hopper of the receiving system. The bag breaking cutter is arranged in the receiving hopper, the movable fence is arranged at the bottom, the gap between the fences is six centimeters, larger sundries such as pop-top cans and wine bottles can be kept, after the kitchen waste basically passes through the bag breaking cutter, the circulating reuse water after wastewater treatment can be sprayed in the hopper to remove sticky substances kept on the sundries, and then the sundries are sent out of the hopper. Resetting the fence again, receiving materials again, and repeating the steps.
The material receiving system is mainly a stainless steel shaftless conveyor, and has a certain inclination angle during installation, so that kitchen leachate can be collected and recovered at the lower part of the conveyor when kitchen garbage is conveyed. The leachate is heated and then is sent to an oil-water separator by an anti-corrosion pump, the separated crude oil is collected into a storage system to be sold, and the separated wastewater enters a wastewater treatment system.
The material receiving system is a basically closed negative pressure space system, collected air is led to the deodorization system by the induced draft fan to be deodorized and discharged, and meanwhile, the induced draft fan of the boiler room also extracts the polluted air to be combustion-supporting air, and the polluted air is incinerated, deodorized and purified and discharged by the boiler.
The pretreatment system is a set of basically closed special machine for containing water and stirring and flowing, the machine receives the kitchen waste after removing large sundries, and various substances of the kitchen waste respectively present 3 postures of floating surface, water and sinking bottom in the stirred water through the specific gravity principle of the water, and the substances generally present on the floating surface are grease, plastics, wood chopsticks, partial textile fibers or tissues and the like; organic substances such as rice grains, fruit, vegetable and meat (part of plastics and textile fibers mixed in the water layer are lifted out of the water layer by a roller type needle hanging machine and separated); the submerged water is metal, ceramic glass, bone, silt and the like. Then the materials on the three layers are respectively recovered, high-purity classification separation and impurity removal of organic materials and other impurities in the kitchen waste are realized, and meanwhile, salt in the kitchen organic matters is diluted through flowing water and partial salt and seasoning ingredients are taken away.
Reference table for proportion of each component substance in kitchen waste (considering kitchen water content of 85%)
Description of the drawings:
the method is characterized in that the condition of common kitchen waste is taken as reference for calculation, and if local kitchen waste or kitchen waste with different parameters is taken as a raw material, corresponding data adjustment is sequentially carried out according to the same method in the method.
The kitchen organic material separated by the pretreatment process is also crushed into fine crushed material by squeezing and dewatering. The fineness is an important link for efficient utilization of appearance and image of high-quality resource commodities in subsequent production and resource performance. The separated sewage is sent into an oil-water separator for oil-water separation treatment, which is beneficial to the wastewater to reach the recycling degree after being reprocessed.
The objects removed from the impurities include plastics, glass, bamboo, wood, ceramics, metals, bones (the bones can be treated and crushed to be treated and utilized with organic matters), etc., and other objects are classified and then respectively utilized for disposal (not shown).
The kitchen waste separator adopts a special horizontal separator, and is different from a common horizontal separator in that the length of a separation part of the horizontal separator is increased, so that the separation of oil and water which are close to the same quality and the extraction of residues in the water are facilitated.
After the pretreated organic matter is further dehydrated and crushed, the organic matter enters a subcritical water (MRM) system for efficient and rapid decomposition and harmless treatment, and resources are regenerated into fertilizer or feed materials; the materials enter a biological bin for biological bacterium palatability optimization, and then are extruded, granulated, dried and shaped to form a feed finished product or an organic fertilizer.
The separated crude oil is collected and stored by an oil storage system and is sold as an industrial raw material.
The separated wastewater enters a water treatment system, and is subjected to treatment such as high-voltage electrocatalytic oxidation desalting and the like by core equipment, and then is subjected to water sorting pretreatment for recycling water or is discharged after reaching standards.
Compared with wet household garbage and other raw materials, the kitchen garbage waste has the characteristics of high organic matter content, rich nutrition such as protein and plant fiber, and the like, and is a high-quality raw material for preparing feed and fertilizer.
According to the general kitchen waste (referring to a table for reference of the proportion of various substances contained in the kitchen waste before reference, the water content is 85 percent, and the total impurity content is about 10.72 percent), after a series of pretreatment of removing impurities, removing water and oil, about 45 tons of solid organic matters with the water content of about 60 percent and the density and mass of about 500 kilograms per cubic meter can be obtained. With a 6 cubic subcritical water (MRM) system device, working 24 hours a day calculates:
amount of kitchen organic slag treated every day (28 times/24 hours)
Description of the drawings:
the water content of 200 tons of fresh kitchen waste is about 85 percent, the density mass is about 1050 kilograms per cubic meter, and after pretreatment and water removal and impurity removal, about 45 tons of organic matters with the water content of about 60 percent and the density mass of about 500 kilograms per cubic meter can be obtained (the kitchen waste with different water contents and different impurity contents is calculated separately, the data are different, and the calculation method is the same).
The subcritical water (MRM) system equipment can treat 4.2 cubic meters (about 2.1 tons) of the kitchen materials after impurity removal and dehydration every time, the production operation can be carried out for 28 times in 24 hours, and the treatment capacity is more than 45 tons.
A subcritical water (MRM) system device can treat 60000 tons/year of fresh kitchen waste by 300 days of work per year.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. The utility model provides a harmless resource regeneration treatment equipment of kitchen garbage and organic waste which characterized in that: at least, including meal kitchen receive material system, preliminary treatment classification system, measurement system, material pipeline closed conveying system, subcritical water system, granulation system, drying system, sewage treatment system, deodorization system, debris separation processing system, product quality inspection system, biological logistics system, boiler energy system, baling line, finished product warehouse, power supply system and water supply system, power supply system with water supply system is above-mentioned each system energy supply, boiler energy system does the energy supply of subcritical water system, the meal kitchen receives the material that material system received to pass through material pipeline closed conveying system carries preliminary treatment classification system.
2. The equipment and the process for the harmless resource regeneration treatment of the kitchen waste and the organic waste according to claim 1, wherein the equipment and the process are characterized in that: the air that the kitchen was received material system space and is collected leads to deodorization system by the draught fan, simultaneously boiler energy system's draught fan also extracts this space contaminated air and be combustion air, the kitchen is received the material system and is included the shaftless conveyer of stainless steel at least.
3. The equipment and the process for the harmless resource regeneration treatment of the kitchen waste and the organic waste according to claim 1, wherein the equipment and the process are characterized in that: the pretreatment classification system is a set of special machine for containing water and stirring to flow.
4. A harmless resource regeneration treatment process for kitchen waste and organic waste is characterized by comprising the following steps:
step S1, the kitchen waste firstly enters a receiving system;
step S2, the kitchen waste enters a classification pretreatment system from the material receiving system to perform classification recovery of light floating substances, substances in water and sediment substances;
s3, after oil-water separation of the liquid in the recovered light floating substances, storing and selling the separated crude oil, and recycling or discharging the separated wastewater after wastewater treatment; other materials (plastics, wood chopsticks and the like) are respectively stored and disposed by classification;
s4, recovering heavy substances at the bottom, sending the bones into a crusher for crushing and utilization through sorting, and storing and disposing the rest substances (glass, porcelain, ironware and the like) in a classified manner;
and S5, extracting plastics, paper towels, fabrics and the like in the water layer by a special needle type salvage machine to obtain pure kitchen waste organic matters, recycling, dehydrating and crushing the kitchen waste organic matters, then enabling the kitchen waste organic matters to enter a subcritical water system for efficient and rapid decomposition and harmless treatment, and regenerating resources into fertilizer and feed materials.
5. The harmless resource regeneration treatment process of the kitchen waste and the organic waste, according to claim 4, is characterized in that: the receiving system in step S1 is a substantially closed negative pressure space.
6. The harmless resource regeneration treatment process of the kitchen waste and the organic waste, according to claim 4, is characterized in that: in step S2, the pre-treatment system is a set of basically closed special machine for containing water and stirring to flow, the machine receives the kitchen waste from which large impurities are removed, and makes various substances of the kitchen waste respectively present three postures of floating surface, water and sinking bottom in the water according to the principle of specific gravity of the water, and the substances generally present on the floating surface are grease, plastic, wood chopsticks, partial textile fibers or tissues and the like; organic substances such as rice grains, fruit, vegetable and meat (part of plastics and textile fibers mixed in the water layer are lifted out of the water layer by a roller type needle hanging machine and separated); the submerged water is metal, ceramic glass, bone and silt.
7. The harmless resource regeneration treatment process of the kitchen waste and the organic waste, according to claim 4, is characterized in that: the crude oil and fat separated from the three phases in step S4 is stored and sold, and the separated wastewater is treated and recycled or discharged.
8. The harmless resource regeneration treatment process of the kitchen waste and the organic waste, according to claim 4, is characterized in that: and in the step S5, the feed material is subjected to biological bacterium palatability optimization, and then is subjected to extrusion granulation and drying setting to form a feed finished product or an organic fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010076432.6A CN111097783A (en) | 2020-01-23 | 2020-01-23 | Harmless resource regeneration treatment equipment and process for kitchen waste and organic waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010076432.6A CN111097783A (en) | 2020-01-23 | 2020-01-23 | Harmless resource regeneration treatment equipment and process for kitchen waste and organic waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111097783A true CN111097783A (en) | 2020-05-05 |
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| CN202010076432.6A Pending CN111097783A (en) | 2020-01-23 | 2020-01-23 | Harmless resource regeneration treatment equipment and process for kitchen waste and organic waste |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113275355A (en) * | 2021-03-12 | 2021-08-20 | 启迪环境科技发展股份有限公司 | Wet garbage emergency treatment system and method |
| CN114105686A (en) * | 2021-11-15 | 2022-03-01 | 渭南市变宝餐厨垃圾环保科技有限公司 | System and method for producing humic acid organic fertilizer by kitchen waste |
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| CN114105686A (en) * | 2021-11-15 | 2022-03-01 | 渭南市变宝餐厨垃圾环保科技有限公司 | System and method for producing humic acid organic fertilizer by kitchen waste |
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