CN209792238U - Kitchen waste pretreatment system - Google Patents
Kitchen waste pretreatment system Download PDFInfo
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- CN209792238U CN209792238U CN201920415397.9U CN201920415397U CN209792238U CN 209792238 U CN209792238 U CN 209792238U CN 201920415397 U CN201920415397 U CN 201920415397U CN 209792238 U CN209792238 U CN 209792238U
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Abstract
the utility model discloses a system for kitchen garbage preliminary treatment, include: the filtering device is provided with a kitchen waste inlet, a percolate outlet and a solid waste outlet; a coarse crushing device having a solid waste inlet, an oversize solids outlet, and an undersize solids outlet; a first settling device having an undersize solids inlet, a leachate inlet, an overflow outlet, and a sediment outlet; a fine crushing device having an overflow inlet, an oversize outlet, and an undersize slurry outlet; a heating buffer device having an undersize slurry inlet, a steam inlet, an upper mixed slurry outlet, and a bottom slurry outlet; a three-phase separation device having an upper mixed slurry inlet, a solid phase outlet, a water phase outlet, and an oil phase outlet. By adopting the system, the problems of high organic matter and grease loss rate and serious equipment abrasion of the traditional pretreatment system can be effectively solved, the resource utilization of the kitchen waste is realized, and the system has good economic benefit and environmental protection benefit.
Description
Technical Field
The utility model belongs to the solid waste comprehensive utilization field, concretely relates to system for kitchen garbage preliminary treatment.
Background
Kitchen waste, commonly known as swill, also known as swill and hogwash, is a domestic waste formed in the process of domestic consumption by residents, is extremely easy to rot and deteriorate, emits foul smell, and spreads bacteria and viruses. The kitchen waste is mainly characterized by high moisture, high salinity and high organic matter content, is easy to rot and deteriorate, is easy to breed germs, and can have bad influence on physical and mental health of residents if not properly treated, such as swill pigs, swill-cooked dirty oil and the like. At present, the kitchen waste treatment method comprises fertilizer treatment, feed treatment, anaerobic fermentation treatment and the like. But because the diet habit, garbage classification and resource recovery consciousness of China are weak, the kitchen waste contains more impurities. The mixed large amount of plastic, disposable packing materials and tableware, even some domestic garbage and construction garbage can be mixed in the plastic, disposable packing materials and tableware. This is a great nuisance for subsequent disposal and the removal of these biologically inert materials which are not available must be attempted. At present, the mainstream kitchen waste pretreatment system in China generally has the problems of high organic matter loss rate, high grease loss rate, serious equipment abrasion and the like.
Therefore, the existing kitchen waste pretreatment system needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a system of kitchen garbage preliminary treatment, adopt this system can effectively solve the problem that traditional pretreatment systems exist organic matter and grease loss rate height and equipment wearing and tearing are serious to realize kitchen garbage's utilization, have good economic benefits and environmental protection benefit.
In one aspect of the utility model, the utility model provides a kitchen garbage preliminary treatment's system. According to the utility model discloses an embodiment, the system includes:
the filtering device is provided with a kitchen waste inlet, a percolate outlet and a solid waste outlet;
A coarse crushing device having a solid waste inlet, an oversize solids outlet, and an undersize solids outlet, the solid waste inlet connected to the solid waste outlet;
A first settling device having a undersize solids inlet connected to the undersize solids outlet, a leachate inlet connected to the leachate outlet, an overflow outlet, and a sediment outlet;
A fine crushing device having an overflow inlet, an oversize outlet, and an undersize slurry outlet, the overflow inlet connected to the overflow outlet;
The heating caching device is provided with an undersize slurry inlet, a steam inlet, an upper mixed slurry outlet and a bottom slurry outlet, the undersize slurry inlet is connected with the undersize slurry outlet, and the bottom slurry outlet is connected with the percolate inlet;
the three-phase separation device is provided with an upper mixed slurry inlet, a solid phase outlet, a water phase outlet and an oil phase outlet, and the upper mixed slurry inlet is connected with the upper mixed slurry outlet.
according to the system for kitchen waste pretreatment of the embodiment of the utility model, solid waste after kitchen waste draining is supplied to the coarse crushing device for crushing treatment, the plastic bag of the kitchen waste is broken to release organic matters in the plastic bag, and large organic matters such as steamed bread, watermelon peel and the like are broken, and substances which cannot be broken in the kitchen waste such as large metals such as zip-top cans and the like and wood blocks and other impurities are filtered out by the screen, and undersize solids obtained in the coarse crushing device are supplied to the settling device to be mixed with percolate drained from the kitchen waste in the filtering device for settling, wherein the impurities with high density such as glass and the like are settled at the bottom of the settling device, while the organic matters with light density such as noodles, steamed bread and the like are overflowed from the upper end of the settling device and are further crushed by the fine crushing device, wherein the light impurities such as plastic sheets, disposable chopsticks and the like are filtered out, and the rest slurry, namely undersize slurry, is supplied to a heating buffer device to extract oil, the light upper mixed slurry containing grease is supplied to a three-phase separation device to separate solid phase, water phase and oil phase, and the separated bottom slurry is supplied to a settling device to be reused. Therefore, the system can effectively solve the problems of high organic matter and grease loss rate and serious equipment abrasion of the traditional pretreatment system, realizes resource utilization of the kitchen waste, and has good economic benefit and environmental protection benefit.
In addition, according to the utility model discloses above-mentioned embodiment's kitchen garbage preliminary treatment's system can also have following additional technical characterstic:
Preferably, the system further comprises: the second sedimentation device is provided with an oil phase inlet, an oil outlet and a water outlet, and the oil phase inlet is connected with the oil phase outlet. Therefore, waste can be changed into valuable, and resource utilization of the kitchen waste is realized.
preferably, the water outlet is connected with the heating buffer device. Therefore, resource utilization is realized.
Preferably, the system further comprises: the anaerobic fermentation device is connected with the water phase outlet and the solid phase outlet. Therefore, resource utilization of the kitchen waste is realized.
Preferably, the filtering device is a kitchen waste receiving hopper.
Preferably, the coarse crushing device is a hammer crusher, and sieve holes of the hammer crusher are 50-80 mm.
preferably, the first settling device is a hydraulic sand settling machine.
Preferably, the fine crushing device is a hammer crusher, and sieve holes of the hammer crusher are 6-10 mm.
Preferably, the system further comprises: the first spiral conveyor is respectively connected with the solid garbage inlet and the solid garbage outlet; and the second screw conveyor is respectively connected with the solid phase outlet and the anaerobic fermentation device.
preferably, the first screw conveyor and the second screw conveyor are both shaftless screw conveyors. Thereby, clogging of the apparatus can be avoided.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
Fig. 1 is a schematic structural diagram of a system for pretreating kitchen waste according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a system for pre-treating kitchen waste according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a system for pre-treating kitchen waste according to another embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a system for pretreating kitchen waste according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
in the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The present application was completed based on the following findings of the inventors: the food habits, garbage classification and resource recovery consciousness of China are weak, so that more impurities exist in the kitchen waste. The kitchen waste is mainly characterized by high moisture, high salinity and high organic matter content, is easy to rot and deteriorate, is easy to breed germs, and can have bad influence on physical and mental health of residents if not properly treated, such as swill pigs, swill-cooked dirty oil and the like. And a large amount of plastic, disposable packing materials and tableware are mixed in the kitchen waste, even some household garbage and construction garbage are mixed in the kitchen waste, great troubles are brought to subsequent disposal, and in order to realize resource utilization of the kitchen waste, unavailable biochemical inert materials must be removed as much as possible.
Therefore, in one aspect of the present invention, the utility model provides a kitchen waste pretreatment system. According to an embodiment of the present invention, referring to fig. 1, the system includes: the device comprises a filtering device 100, a coarse crushing device 200, a first settling device 300, a fine crushing device 400, a heating buffer device 500 and a three-phase separation device 600.
According to the utility model discloses an embodiment, filter equipment 100 has kitchen garbage entry 101, filtration liquid export 102 and solid waste export 103, and is used for carrying out filtration treatment to kitchen garbage, obtains filtration liquid and solid waste. Specifically, this filter equipment can connect the hopper for kitchen garbage, preferred steel hopper, and kitchen garbage piles up in the hopper promptly, and kitchen garbage's filtration liquid is leached out, and solid waste carries out subsequent processing.
According to the utility model discloses an embodiment, coarse crushing device 200 has solid waste entry 201, oversize solid export 202 and undersize solid export 203, and solid waste entry 201 links to each other with solid waste export 103, and is used for carrying out breakage and filtration to the above-mentioned solid waste that obtains, obtains solid and undersize solid on the sieve. Specifically, plastic bags in the solid garbage are broken, organic matters in the solid garbage are released, large organic matters such as steamed bread, watermelon peel and the like are broken, substances which cannot be broken in the kitchen garbage, such as large metal blocks such as zip-top cans and the like, wood blocks and other impurities, namely screened solids, are filtered out by a screen, preferably, the coarse crushing device is a slow hammer crusher, sieve holes are formed in the bottom of the coarse crushing device, and the particle size of each sieve hole is 50-80 mm, so that the problem of large organic matter loss caused by existing mainstream large material screening equipment is solved, meanwhile, the slow hammer crusher is adopted, glass bottles, bones and the like in the solid garbage are not crushed into small particles, subsequent separation is facilitated, and in addition, the diameter of the crusher reaches more than 1m, so that a large number of plastic bags are prevented from being wound on a crusher rotating shaft.
According to the embodiment of the utility model, first settlement device 300 has subsieve solid entry 301, filtration liquid entry 302, overflow export 303 and subsides export 304, and subsieve solid entry 301 links to each other with subsieve solid export 203, and filtration liquid entry 302 links to each other with filtration liquid export 102, and is arranged in mixing the filtration liquid of leaching out among the subsieve solid that obtains and the breaker with the aforesaid and subsides the processing, obtains overflow thing and subsides. Specifically, the first settling device is a hydraulic sand settling machine, the hydraulic sand settling machine is a tank body with a conical bottom at the lower part, a stirrer is arranged at the top, impurities with high density such as glass bones and the like are settled at the bottom, and organic matters with light density such as noodles, steamed bread and the like are overflowed and discharged from the upper end of the settling device. According to the utility model discloses an embodiment, fine crushing device 400 has overflow entry 401, oversize export 402 and undersize thick liquid export 403, and overflow entry 401 links to each other with overflow export 303, and is used for carrying out breakage and filtration to the above-mentioned overflow that obtains, obtains oversize and undersize thick liquid. Specifically, the fine crushing device is a high-speed hammer crusher, sieve holes are formed in the bottom of the fine crushing device, the particle size of each sieve hole is 6-10 mm, so that light impurities such as plastic sheets and disposable chopsticks in the obtained overflow are filtered out, and the remaining slurry containing steamed bread, noodles and the like is filtered out through the sieve screen to obtain undersize slurry. The inventor finds that the glass, the bones and the like in the garbage can not be broken into small particles by carrying out coarse crushing before settlement and then carrying out fine crushing, so that the glass, the bones and the like are prevented from being broken into the small particles to the maximum extent and entering undersize slurry, and meanwhile, the organic matter is crushed more thoroughly and the organic matter particles in the slurry are smaller, thereby being beneficial to the oil extraction and other operations in the subsequent process.
according to the utility model discloses an embodiment, heating buffer memory device 500 has undersize thick liquid entry 501, steam inlet 502, the mixed thick liquid export 503 in upper portion and bottom thick liquid export 504, undersize thick liquid entry 501 links to each other with undersize thick liquid export 403, bottom thick liquid export 504 links to each other with filtration liquid entry 302, and be used for separating after undersize thick liquid that obtains above-mentioned separation mixes with steam, the separation obtains the mixed thick liquid in upper portion and the bottom thick liquid that contains the grease, the bottom thick liquid of separation returns and uses as filtration liquid in the first settling equipment. Specifically, the heating buffer device is a concrete pool, a steam inlet is arranged on the concrete pool, grease in the obtained undersize slurry floats on the upper part of the heating buffer device through heating of steam, meanwhile, light steamed bread grains, rice grains and the like also float on the upper part of the heating buffer device to form upper mixed slurry together, and the separated bottom slurry returns to the first sedimentation device to be used as a diluting medium. Preferably, the undersize slurry is heated to 60-80 ℃ for cooking in a mode of directly mixing steam and slurry, and the subsequent oil extraction rate can be obviously improved.
according to the utility model discloses an embodiment, three-phase separator 600 has mixed thick liquid entry 601 in upper portion, solid phase export 602, aqueous phase export 603 and oil phase export 604, and mixed thick liquid entry 601 in upper portion links to each other with mixed thick liquid export 503 in upper portion, and is used for carrying out the separation processing to the mixed thick liquid in upper portion that the aforesaid obtained, obtains solid phase, aqueous phase and oil phase.
According to the system for kitchen waste pretreatment of the embodiment of the utility model, solid waste after kitchen waste draining is supplied to the coarse crushing device for crushing treatment, the plastic bag of the kitchen waste is broken to release organic matters in the plastic bag, and large organic matters such as steamed bread, watermelon peel and the like are broken, and substances which cannot be broken in the kitchen waste such as large metals such as zip-top cans and the like and wood blocks and other impurities are filtered out by the screen, and undersize solids obtained in the coarse crushing device are supplied to the settling device to be mixed with percolate drained from the kitchen waste in the filtering device for settling, wherein the impurities with high density such as glass and the like are settled at the bottom of the settling device, while the organic matters with light density such as noodles, steamed bread and the like are overflowed from the upper end of the settling device and are further crushed by the fine crushing device, wherein the light impurities such as plastic sheets, disposable chopsticks and the like are filtered out, and the rest slurry, namely undersize slurry, is supplied to a heating buffer device to extract oil, the light upper mixed slurry is supplied to a three-phase separation device to separate solid phase, water phase and oil phase, and the separated bottom slurry is supplied to a settling device to be reused. Therefore, the system can effectively solve the problems of high organic matter and grease loss rate and serious equipment abrasion of the traditional pretreatment system, realizes resource utilization of the kitchen waste, and has good economic benefit and environmental protection benefit.
according to the embodiment of the utility model, referring to fig. 2, above-mentioned kitchen garbage preliminary treatment's system further includes: and the second sedimentation device 700 is provided with an oil phase inlet 701, a grease outlet 702 and a water outlet 703, wherein the oil phase inlet 701 is connected with the oil phase outlet 604 and is used for separating the separated oil phase to obtain grease and water. Specifically, this second subsides the device for the steel jar body, through adopting the second to subside the grease that the device can separate out in the oil phase, this grease can be sold to changing waste into valuables brings economic benefits. According to an embodiment of the present invention, referring to fig. 2, the water outlet 703 is connected to the heating buffer device 500 and is used for supplying the water separated by the second settling device to the heating buffer device.
According to the embodiment of the utility model, referring to fig. 3, above-mentioned kitchen garbage preliminary treatment's system further includes: the anaerobic fermentation device 800 is connected with the water phase outlet 603 and the solid phase outlet 602, and is used for mixing the solid containing organic matters obtained by separating the kitchen waste with the water phase to perform anaerobic fermentation, so that the resource utilization of the kitchen waste is realized.
According to the embodiment of the utility model, referring to fig. 4, above-mentioned kitchen garbage preliminary treatment's system further includes: a first screw conveyor 900 and a second screw conveyor 1000.
According to the utility model discloses an embodiment, first screw conveyer 900 links to each other with solid waste entry 201 and solid waste export 103 respectively, and is arranged in carrying the solid waste that obtains in the filter equipment to coarse crushing device. Specifically, the first screw conveyor is a shaftless screw conveyor with a draining function.
According to another embodiment of the present invention, the second screw conveyer 1000 is connected to the solid phase outlet 602 and the anaerobic fermentation device 800, and is used for feeding the solid phase separated by the three-phase separation device into the anaerobic fermentation device for fermentation treatment. Specifically, the second screw conveyor is a shaftless screw conveyor.
as described above, the system for kitchen waste pretreatment according to the embodiment of the present invention may have at least one of the following advantages:
1. The process system firstly adopts slow coarse crushing, avoids the problem of large organic matter loss caused by the current mainstream large material screening equipment, and has low organic matter loss rate.
2. The process system firstly adopts slow coarse crushing, so that glass bottles, bones and the like cannot be crushed into small particles, and subsequent sedimentation is facilitated.
3. The process system firstly settles and then carries out slurry treatment, so that impurities such as glass, bones and the like can settle down when the particles are large, the impurities can be removed more thoroughly, and the impurities can be prevented from being broken into small particles to enter the slurry to the maximum extent.
4. And bottom slurry obtained by heating the caching device flows back to the first sedimentation device, so that the sand content in the slurry is further reduced, and the abrasion of subsequent equipment is reduced.
5. The hammer crusher is adopted for fine crushing, organic matters are crushed more thoroughly, organic matter particles in the slurry are smaller, and subsequent cooking oil extraction and slurry treatment are facilitated.
6. The heating is directly carried out in a steam mode in the heating caching device, the operation is simple, the cooking time of the slurry is longer, and the oil extraction rate is higher.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A system for kitchen waste pretreatment is characterized by comprising:
the filtering device is provided with a kitchen waste inlet, a percolate outlet and a solid waste outlet;
A coarse crushing device having a solid waste inlet, an oversize solids outlet, and an undersize solids outlet, the solid waste inlet connected to the solid waste outlet;
a first settling device having a undersize solids inlet connected to the undersize solids outlet, a leachate inlet connected to the leachate outlet, an overflow outlet, and a sediment outlet;
A fine crushing device having an overflow inlet, an oversize outlet, and an undersize slurry outlet, the overflow inlet connected to the overflow outlet;
The heating caching device is provided with an undersize slurry inlet, a steam inlet, an upper mixed slurry outlet and a bottom slurry outlet, the undersize slurry inlet is connected with the undersize slurry outlet, and the bottom slurry outlet is connected with the percolate inlet;
The three-phase separation device is provided with an upper mixed slurry inlet, a solid phase outlet, a water phase outlet and an oil phase outlet, and the upper mixed slurry inlet is connected with the upper mixed slurry outlet.
2. the system of claim 1, further comprising: the second sedimentation device is provided with an oil phase inlet, an oil outlet and a water outlet, and the oil phase inlet is connected with the oil phase outlet.
3. The system of claim 2, wherein the water outlet is connected to the heating buffer device.
4. The system of claim 1, further comprising: the anaerobic fermentation device is connected with the water phase outlet and the solid phase outlet.
5. The system of claim 1, wherein the filtering device is a kitchen waste receiving hopper.
6. the system of claim 1, wherein the coarse crushing device is a hammer crusher having a mesh size of 50-80 mm.
7. The system of claim 1, wherein the first settling device is a hydraulic sand settler.
8. The system of claim 1, wherein the fine crushing device is a hammer crusher having 6-10 mm mesh openings.
9. The system of claim 4, further comprising:
The first spiral conveyor is respectively connected with the solid garbage inlet and the solid garbage outlet;
And the second screw conveyor is respectively connected with the solid phase outlet and the anaerobic fermentation device.
10. the system of claim 9, wherein the first screw conveyor and the second screw conveyor are both shaftless screw conveyors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415397.9U CN209792238U (en) | 2019-03-28 | 2019-03-28 | Kitchen waste pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415397.9U CN209792238U (en) | 2019-03-28 | 2019-03-28 | Kitchen waste pretreatment system |
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| Publication Number | Publication Date |
|---|---|
| CN209792238U true CN209792238U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920415397.9U Expired - Fee Related CN209792238U (en) | 2019-03-28 | 2019-03-28 | Kitchen waste pretreatment system |
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| Country | Link |
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| CN (1) | CN209792238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014018A (en) * | 2019-03-28 | 2019-07-16 | 北京云水浩瑞环境科技有限公司 | The pretreated system of kitchen garbage |
| CN116589150A (en) * | 2023-07-18 | 2023-08-15 | 江苏博尔科环保科技有限公司 | Kitchen garbage filtration liquid collecting and processing equipment |
-
2019
- 2019-03-28 CN CN201920415397.9U patent/CN209792238U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014018A (en) * | 2019-03-28 | 2019-07-16 | 北京云水浩瑞环境科技有限公司 | The pretreated system of kitchen garbage |
| CN110014018B (en) * | 2019-03-28 | 2024-06-28 | 北京云水浩瑞环境科技有限公司 | Kitchen waste pretreatment system |
| CN116589150A (en) * | 2023-07-18 | 2023-08-15 | 江苏博尔科环保科技有限公司 | Kitchen garbage filtration liquid collecting and processing equipment |
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Granted publication date: 20191217 |