CN211170613U - Kitchen waste treatment system - Google Patents

Abstract

The utility model provides a kitchen garbage processing system relates to refuse treatment technical field. The kitchen waste treatment system comprises a separation module and a fuel manufacturing module; the separation module is provided with a solid phase outlet, and the fuel manufacturing module is communicated with the solid phase outlet; the fuel preparation module comprises a drying machine and a forming machine, the drying machine is used for drying the separated solid phase, the dried solid phase can be conveyed into the forming machine, and the forming machine is used for adding a fuel agent into the dried solid phase and forming the solid phase into fuel so as to relieve the technical problem that secondary pollution is easily caused by treatment of kitchen waste in the prior art.

Description

Kitchen waste treatment system

Technical Field

The utility model relates to a refuse treatment technical field especially relates to a kitchen garbage processing system.

Background

With the increase of economy and the increase of the consumption level of residents, the consumption of people in the aspect of catering is increased day by day, the rapid increase of the kitchen waste is brought, and the proportion of the kitchen waste in the municipal solid waste is approximately 37-62%. Meanwhile, with the continuous improvement of the living standard of people in China, the structure and the quantity of the public catering are more abundant, and the proportion and the quantity of the kitchen waste occupying the urban household waste are continuously increased.

Although the current kitchen waste treatment system can perform solid-liquid separation, most of the separated solid waste is directly treated in modes of landfill, incineration, composting, feed conversion and the like, and the treatment mode not only cannot achieve the effects of harmlessness, reduction and recycling, but also can cause secondary pollution to the environment.

In view of the above, there is a need for a kitchen waste treatment system, which can solve the above problems.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a kitchen garbage processing system to alleviate among the prior art to kitchen garbage's processing and lead to secondary pollution's technical problem easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a kitchen waste treatment system, which comprises a separation module and a fuel manufacturing module;

the separation module is provided with a solid phase outlet, and the fuel manufacturing module is communicated with the solid phase outlet; the fuel preparation module comprises a drying machine and a forming machine, the drying machine is used for drying the separated solid phase, the dried solid phase can be conveyed to the forming machine, and the forming machine is used for adding a fuel agent into the dried solid phase and forming the solid phase into fuel.

In any of the above technical solutions, further, the fuel production module further includes a crusher, and the crusher is disposed between the drying machine and the forming machine.

In any one of the above technical solutions, further, the fuel production module further includes a sorting table, a discharge port of the sorting table is communicated with a feed port of the drying machine, and the sorting table is used for separating combustion pollutants in a solid phase.

In any one of the above technical solutions, further, the fuel production module further includes a metering pump, the metering pump is disposed at a feed inlet of the molding machine, and the metering pump is configured to quantitatively add the fuel agent into the molding machine.

In any one of the above technical solutions, further, the kitchen waste treatment system further includes a wastewater treatment module, the separation module has a water phase outlet, and the wastewater treatment module is communicated with the water phase outlet.

In any one of the above technical solutions, further, the wastewater treatment module includes a hydrolysis acidification tank and an anaerobic reactor, a liquid outlet of the hydrolysis acidification tank is communicated with a liquid inlet of the anaerobic reactor, and a liquid inlet of the hydrolysis acidification tank is communicated with the water phase outlet.

In any of the above technical solutions, further, the wastewater treatment module further includes a delivery pump, and the delivery pump is disposed between the separation module and the hydrolysis acidification tank;

and/or the wastewater treatment module further comprises a lift pump, and the lift pump is arranged between the hydrolysis acidification tank and the anaerobic reactor.

In any of the above technical solutions, further, the wastewater treatment module further includes a biogas generator;

the biogas generator is connected with the anaerobic reactor, and the anaerobic reactor is used for inputting biogas to the biogas generator; the methane generator is connected with the drying machine.

In any one of the above technical solutions, further, the wastewater treatment module further includes a multi-stage AO reactor, and a liquid inlet of the multi-stage AO reactor is communicated with a liquid outlet of the anaerobic reactor.

In any one of the above technical solutions, further, the wastewater treatment module further includes a membrane treatment reactor, and a liquid inlet of the membrane treatment reactor is communicated with a liquid outlet of the multistage AO reactor.

In any of the above technical solutions, further, the separation module includes a three-phase separator, and the three-phase separator is used for separating a water phase, an oil phase and a solid phase in the garbage.

In any one of the above technical solutions, further, the separation module further includes a screening machine, the screening machine is disposed at a feed inlet of the three-phase separator, and the screening machine is used for separating recyclable matters in the garbage.

The utility model has the advantages that:

the utility model provides a pair of kitchen garbage processing system, including separation module and fuel preparation module, wherein, separation module has the solid phase export, and the solid phase in the rubbish can be followed the solid phase export and flowed to carry to fuel preparation module. The fuel manufacturing module comprises a drying machine and a forming machine which are sequentially arranged, the solid phase separated by the separation module can be conveyed into the drying machine, is dried by the drying machine and then conveyed into the forming machine from the drying machine, a fuel agent is added into the forming machine for fuel forming, and then the separated solid phase is made into fuel for combustion.

This kitchen garbage processing system separates the solid phase in the rubbish from the solid phase export through the separation module, then makes the fuel through desiccator and make-up machine with the solid phase that separates in proper order, realizes not needing directly to bury or burn the reuse of separating the solid phase, and then reduces the secondary pollution that the solid phase caused the environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flow chart of the kitchen waste disposal system provided by the embodiment of the present invention when disposing waste.

Icon: 11-a three-phase separator; 12-screening machine; 21-a drier; 22-a forming machine; 23-a crusher; 24-a sorting table; 25-a dryer; 31-a hydrolysis acidification tank; 32-an anaerobic reactor; 33-a biogas generator; 34-a multistage AO reactor; 35-membrane treatment reactor.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected or connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1, the kitchen waste treatment system provided by this embodiment includes a separation module and a fuel production module; the separation module is provided with a solid phase outlet, and the fuel manufacturing module is communicated with the solid phase outlet; the fuel manufacturing module comprises a drying machine 21 and a forming machine 22, wherein the drying machine 21 is used for drying the separated solid phase, the dried solid phase can be conveyed into the forming machine 22, and the forming machine 22 is used for adding a fuel agent into the dried solid phase and forming the solid phase into fuel.

Specifically, the separation module is used for classifying the kitchen waste, and can separate the kitchen waste according to solid and liquid phases and also can separate the kitchen waste according to water, oil and solid phases. In this embodiment, the separation module has a solid phase outlet, and the solid phase waste in the kitchen waste is separated from the solid phase outlet. The separated solid-phase garbage can be conveyed to a fuel preparation module for fuel preparation. Firstly, the separated solid-phase garbage is conveyed to the drier 21, and the solid-phase garbage is dried through the drying effect of the drier 21 so as to reduce the water content of the solid-phase garbage and facilitate the subsequent molding operation. The dried solid phase waste is then conveyed to a forming machine 22, a fuel agent is added into the forming machine 22, and the fuel agent and the solid phase waste are mixed and formed to finally prepare a reusable fuel for combustion.

This kitchen garbage processing system compares in prior art directly burns, buries rubbish, separates out the solid phase rubbish that can burn earlier, then makes the fuel that can burn the utilization through mummification, shaping, and then realizes the reutilization to solid phase rubbish, has improved the recycle ratio to wastes material, rubbish, and then reduces the pollution that produces the air when directly burning, perhaps directly buries and causes the pollution to soil.

Wherein, the drier 21 adopts a heat pump to dry at low temperature to pre-treat the solid-phase garbage so as to reduce the water content.

The fuel molded by the molding machine 22 can be secondarily dried by the dryer 25, so that the water content in the fuel is further reduced, and the combustion heat value is improved.

In actual use, the fuel agent comprises a binder, a combustion improver and a moisture calorific value regulator. Wherein the adhesive comprises one of carrageenan, sodium carbonate, starch, sludge, a silane coupling agent, vinyl acetate, carboxymethyl cellulose and polyvinyl alcohol; the combustion improver comprises one of magnesium nitrate, magnesium oxide, sepiolite powder, manganese dioxide, carbon powder, ammonium bicarbonate, calcium peroxide, biomass alcohol, potassium permanganate, aluminum oxide and ammonium dihydrogen phosphate; the water heat value regulator comprises one of bagasse, corn straw, soybean straw, oil-tea camellia shell, sludge, branches, leaves and wood chips.

The adhesive is a viscous substance, can adhere dispersed solid phase, combustion improver, moisture calorific value regulator and the like together by means of self viscosity, is convenient for the combination and molding of the solid phase, the combustion improver and the moisture calorific value regulator, so as to increase the integrity of the prepared fuel and reduce the dispersibility of the to-be-adhered substance. The purpose of the combustion improver is to improve the combustion performance of the prepared fuel, generate oxygen required by combustion, and further increase the combustibility of the fuel prepared from solid-phase garbage so as to facilitate full combustion. The water heat value regulator can improve the water content doped in the solid-phase garbage, and has good combustibility and higher combustion heat value, so that the combustion heat value of the prepared fuel is increased.

It should be added that the materials used for the adhesive, the combustion improver and the moisture calorific value regulator are not limited to one of the above materials, and may be a combination of a plurality of materials, as long as the solid waste fuel molding can be realized and good fuel performance can be ensured.

In practical use, the fuel production module further comprises a metering pump, the metering pump is disposed at the feed inlet of the forming machine 22, and the metering pump is used for quantitatively adding the fuel agent into the forming machine 22.

Specifically, the outlet of the metering pump is also provided with a first conveyor into which the metering pump outputs a certain amount of material, and the first conveyor conveys the received material into the molding machine 22. And the output value of the metering pump is selected according to the solid-phase garbage amount in actual operation. The adhesive, the combustion improver and the water calorific value regulator are respectively provided with a combination of a group of metering pumps and a first conveyor.

With continued reference to fig. 1, preferably, the fuel production module further includes a crusher 23, and the crusher 23 is disposed between the drying machine 21 and the forming machine 22. Specifically, a second conveyor is arranged between the drying machine 21 and the crusher 23, the solid-phase garbage dried by the drying machine 21 is conveyed to the crusher 23 through the second conveyor, so that the solid-phase garbage is crushed by the crusher 23, and the solid-phase garbage is crushed into small-particle-size particles, so that the solid-phase garbage and the fuel agent can be formed in the forming machine 22 in a subsequent step. The solid-phase garbage dried by the drier 21 is also easier to crush, and the solid-phase garbage is dried by the drier 21, so that the solid-phase garbage cannot be wound on the crusher 23 due to high water content, and the crushing efficiency is improved. Wherein, a third conveyor is arranged at the discharge port of the crusher 23, and the third conveyor is arranged between the crusher 23 and the forming machine 22, and is used for conveying the solid-phase garbage crushed by the crusher 23 into the forming machine 22 so as to facilitate fuel forming.

With continued reference to fig. 1, preferably, the fuel production module further includes a sorting table 24, a discharge port of the sorting table 24 is communicated with a feed port of the drying machine 21, and the sorting table 24 is used for separating the combustion pollutants in the solid phase. Specifically, sorting platform 24 adopts the mode of manual sorting, and the aim at separates out the material that can not burn in the solid phase rubbish that separates out through the separation module, promptly need to separate out the pollutant of burning, impurity such as plastics to the preparation of follow-up fuel improves the calorific value and the feature of environmental protection of making fuel.

Wherein, be provided with the fourth conveyer between the solid phase export of letter sorting platform 24 and separation module to carry solid phase rubbish to letter sorting platform 24 through the fourth conveyer, need not the manual work and carry solid phase rubbish to letter sorting platform 24, increase treatment effeciency.

It should be noted that the first conveyor, the second conveyor, the third conveyor, and the fourth conveyor may be belt conveyors, and the belt conveyors may be any conveyors as long as they can convey the solid waste and the fuel.

In some embodiments, the kitchen waste treatment system further comprises a waste water treatment module, the separation module has an aqueous phase outlet, and the waste water treatment module is communicated with the aqueous phase outlet. Just as before, not only can separate out solid-phase rubbish through the separation module, can also separate out liquid-phase rubbish, wherein liquid-phase rubbish includes other rubbish such as aqueous phase and oil phase again, and waste water treatment module can handle the aqueous phase rubbish that separates out, and then reduces the pollution to the water resource.

With continued reference to fig. 1, preferably, the wastewater treatment module includes a hydrolysis acidification tank 31 and an anaerobic reactor 32, and a liquid outlet of the hydrolysis acidification tank 31 is communicated with a liquid inlet of the anaerobic reactor 32, and a liquid inlet of the hydrolysis acidification tank 31 is communicated with a water phase outlet. In actual use, the wastewater treatment module further comprises a delivery pump, and the delivery pump is arranged between the separation module and the hydrolysis acidification tank 31; the wastewater treatment module further comprises a lift pump, and the lift pump is arranged between the hydrolysis acidification tank 31 and the anaerobic reactor 32.

Specifically, be provided with the delivery pump between the aqueous phase export of separation module and hydrolysis-acidification tank 31, carry the aqueous phase rubbish of separating to hydrolysis-acidification tank 31 in through the delivery pump, open loop with the macromolecule in the aqueous phase rubbish is broken chain into the micromolecule in hydrolysis-acidification tank 31, that is to say under the condition that contains a large amount of hydrolytic bacteria, the acidizing bacteria, utilize hydrolytic bacteria, the acidizing bacteria is hydrolyzed the organic matter of aquatic insolubility into soluble organic matter, turn into the micromolecule matter of easy biodegradation with the macromolecular matter of difficult biodegradation, thereby improve the biodegradability of aqueous phase rubbish, provide good water quality environment for anaerobic biochemical treatment. Namely: the hydrolytic acidification treatment of the hydrolytic acidification tank 31 is the pretreatment of the water phase waste.

A lifting pump is arranged between the hydrolysis acidification tank 31 and the anaerobic reactor 32, the water phase garbage after hydrolysis acidification is conveyed to the anaerobic reactor 32 through the lifting pump, in the anaerobic reactor 32, microorganisms are in contact adsorption with organic matters in the water phase garbage, then the organic matters are decomposed, the degradable organic matters are partially decomposed into methane through the anaerobic reactor 32, the decomposed methane can be used for industries such as methane power generation, and the organic matters of sewage are recycled by the other part of organic matters, namely, the sewage can be safely discharged.

With continued reference to fig. 1, preferably, the wastewater treatment module further comprises a biogas generator 33; the biogas generator 33 is connected with the anaerobic reactor 32, and the anaerobic reactor 32 is used for inputting biogas to the biogas generator 33; the methane generator 33 is connected with the drier 21. Specifically, the biogas generated by the anaerobic reactor 32 is desulfurized and then enters the gas turbine to be combusted and generated, thereby realizing the power generation operation of the biogas generator 33. Meanwhile, the residual heat generated by the combustion of the gas turbine is supplied to the drier 21 through the steam pipeline, and the drying treatment of the solid-phase garbage in the drier 21 is performed through the residual heat. The utilization of biogas power generation is realized, the drying operation of the drying machine 21 is facilitated, the cyclic utilization of the energy in the kitchen waste treatment system is realized, and the utilization rate of the energy is improved.

With continued reference to FIG. 1, preferably, the wastewater treatment module further comprises a multi-stage AO reactor 34, and an inlet of the multi-stage AO reactor 34 is in communication with an outlet of the anaerobic reactor 32. Specifically, the water-phase waste treated by the anaerobic reactor 32 is conveyed to the multi-stage AO reactor 34 to be treated again by an Anaerobic Oxic (AO) process. Namely: so that the organic pollutants in the water-phase garbage are degraded again, and the nitrogen and phosphorus removal effect of the organic matters is realized.

With continued reference to fig. 1, preferably, the wastewater treatment module further comprises a membrane treatment reactor 35, and the liquid inlet of the membrane treatment reactor 35 is in communication with the liquid outlet of the multi-stage AO reactor 34. Specifically, the water-phase waste after the AO process is delivered to the membrane treatment reactor 35 for the biofilm treatment of the sewage, that is: the microorganism such as bacteria and fungi, and the micro-animal such as protozoa and metazoan are attached to the filter material or some carrier for growth and breeding, and a film-shaped biological sludge-biological film is formed on the filter material or some carrier. The sewage contacts with the biological membrane, and organic pollutants in the sewage are taken as nutrient substances and are ingested by microorganisms on the biological membrane, so that the sewage is purified, and the microorganisms can multiply and proliferate.

It is necessary to supplement that the working principles of hydrolytic acidification reaction, anaerobic reaction, AO process and biofilm treatment of sewage all belong to the existing mature technology, and also do not belong to the improvement point of the present application, so the details are not repeated.

With continued reference to fig. 1, preferably, the separation module comprises a three-phase separator 11, the three-phase separator 11 being used for separating the water phase, the oil phase and the solid phase in the waste.

Specifically, the three-phase separator 11 is a cyclone type three-phase separator. The cyclone comprises a tangential feed inlet, a column section, a cone section, an overflow pipe and an underflow pipe. When the cyclone operates, materials enter the cyclone through the tangential feed inlet at a certain initial speed, are restricted by the structure to do circular motion, and rotate at a high speed to generate a strong hypergravity centrifugal force field. Because the densities of all phases in the kitchen waste conveyed to the three-phase separator 11 are different, the waste with high density moves outwards and rotates downwards under the action of centrifugal force to form an external rotational flow and is separated out from a underflow port; the garbage with low density moves to the vicinity of the central axis and rotates upwards to form an inner rotational flow and is separated from the overflow port; meanwhile, due to the density difference of oil and water, free water sinks to the bottom of the container, oil floats to the upper side and enters the oil chamber by turning over the oil-water baffle.

Wherein, the separated solid-phase garbage is conveyed to a drier 21 for drying treatment so as to facilitate fuel production; the separated water-phase garbage is conveyed to a hydrolysis acidification tank 31 for sewage treatment; the separated oil-phase garbage is treated and then sold for utilization.

It needs to be supplemented that the working principle of the cyclone type three-phase separation is the existing mature technology, and does not belong to the improvement point of the application, so the details are not repeated.

With continued reference to fig. 1, the separation module preferably further comprises a screening machine 12, the screening machine 12 is disposed at the feed inlet of the three-phase separator 11, and the screening machine 12 is used for separating recoverable matters in the garbage. Specifically, before three-phase separation, the kitchen waste is firstly passed through a sieving machine 12 to separate out materials such as metal, glass and the like mixed in the kitchen waste. The sieving machine 12 may be a vibrating sieving machine, and impurities such as metal and glass products may leak through the sieving machine during the vibrating process to achieve the separation purpose.

In summary, as shown in fig. 1, the working flow of the kitchen waste treatment system is as follows:

the kitchen waste is firstly screened by a screening machine 12, substances such as metal, glass and the like mixed in the waste are separated, the waste left after separation is conveyed into a three-phase separator 11, and the three phases of water phase, oil phase and solid phase are separated by the three-phase separator 11. Wherein the separated oil phase can be sold after being treated. The separated solid-phase garbage is conveyed to a sorting table 24 through a fourth conveyor, waste plastics in the solid-phase garbage are removed manually, then the solid-phase garbage is conveyed to a drying machine 21 to be dried, the dried solid-phase garbage is conveyed to a crusher 23 through a second conveyor and is crushed through the crusher 23; the crushed solid waste is conveyed to the forming machine 22 by a third conveyor, mixed with a fuel agent added in the forming machine 22 and formed into a fuel, and the formed fuel is secondarily dried by a dryer 25 to form the fuel with higher combustion heat value. Wherein, the separated water phase garbage is conveyed to a hydrolysis acidification tank 31 through a conveying pump, and is conveyed to an anaerobic reactor 32 through a lifting pump after being hydrolyzed and acidified in the hydrolysis acidification tank 31, and anaerobic reaction treatment is carried out in the anaerobic reactor 32; the water-phase garbage after anaerobic reaction treatment sequentially passes through a multistage AO reactor 34 and a membrane treatment reactor 35 to reach the discharge standard, and is discharged; biogas generated in the anaerobic reactor 32 is delivered to a biogas generator 33 for biogas power generation, and waste heat generated by biogas combustion during power generation is delivered to the drier 21 for drying solid-phase garbage.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (9)

1. A kitchen waste treatment system is characterized by comprising a separation module and a fuel manufacturing module;

the separation module is provided with a solid phase outlet, and the fuel manufacturing module is communicated with the solid phase outlet; the fuel preparation module comprises a drying machine (21) and a forming machine (22), the drying machine (21) is used for drying the separated solid phase, the dried solid phase can be conveyed into the forming machine (22), and the forming machine (22) is used for adding a fuel agent into the dried solid phase and forming the fuel agent into fuel.

2. The kitchen waste treatment system according to claim 1, characterized in that the fuel production module further comprises a crusher (23), and the crusher (23) is disposed between the drying machine (21) and the forming machine (22).

3. The kitchen waste treatment system according to claim 1, wherein the fuel production module further comprises a sorting table (24), a discharge port of the sorting table (24) is communicated with a feed port of the drying machine (21), and the sorting table (24) is used for separating combustion pollutants in a solid phase.

4. The kitchen waste treatment system according to claim 1, further comprising a waste water treatment module, said separation module having an aqueous phase outlet, said waste water treatment module being in communication with said aqueous phase outlet;

the wastewater treatment module comprises a hydrolysis acidification tank (31) and an anaerobic reactor (32), wherein a liquid outlet of the hydrolysis acidification tank (31) is communicated with a liquid inlet of the anaerobic reactor (32), and a liquid inlet of the hydrolysis acidification tank (31) is communicated with a water phase outlet.

5. The kitchen waste treatment system according to claim 4, characterized in that said waste water treatment module further comprises a biogas generator (33);

the biogas generator (33) is connected with the anaerobic reactor (32), and the anaerobic reactor (32) is used for inputting biogas to the biogas generator (33); the methane generator (33) is connected with the drying machine (21).

6. The kitchen waste treatment system according to claim 4, characterized in that the waste water treatment module further comprises a multi-stage AO reactor (34), and an inlet of the multi-stage AO reactor (34) is in communication with an outlet of the anaerobic reactor (32).

7. The kitchen waste treatment system according to claim 6, characterized in that the wastewater treatment module further comprises a membrane treatment reactor (35), and that a liquid inlet of the membrane treatment reactor (35) is in communication with a liquid outlet of the multistage AO reactor (34).

8. The kitchen waste treatment system according to any of the claims 1-7, characterized in that the separation module comprises a three-phase separator (11), said three-phase separator (11) being adapted to separate the water phase, the oil phase and the solid phase of the waste.

9. The kitchen waste treatment system according to claim 8, characterized in that the separation module further comprises a screening machine (12), the screening machine (12) is disposed at the feed inlet of the three-phase separator (11), and the screening machine (12) is used for separating recyclable matters in the waste.

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