Kitchen waste treatment device

Abstract

The utility model discloses a kitchen waste treatment device which mainly comprises a fermentation tank, a double-shaft shear crusher, a spiral extrusion dehydrator and a sewage treatment tank, an inner container with a stirring mechanism is arranged in the fermentation tank, a heat exchange cavity is arranged between the outer wall of the fermentation tank and a tank body, and the temperature control of circulating water is realized through a water inlet pipe and a water outlet pipe; after the double-shaft crusher carries out crushing pretreatment on garbage, materials enter the spiral extrusion dehydrator to separate solid and liquid, dehydrated solids are fed into the inner container of the fermentation tank to be subjected to anaerobic / aerobic fermentation, filtrate is guided into the treatment tank through a sewage pipe to be purified, a material groove opening communicated with a spiral conveyor is formed in the bottom of the fermentation tank, and treated residues are discharged through the conveyor. The device integrates crushing, dehydration, fermentation, temperature control and sewage treatment, has the advantages of high pretreatment efficiency, flexible fermentation mode, accurate temperature control and high environmental protection performance, and effectively improves the kitchen waste treatment efficiency and the recycling level.

Description

TECHNICAL FIELD

[0001] The utility model relates to catering garbage treatment technical field, and specifically is a kind of kitchen waste treatment device. BACKGROUND

[0002] Traditional kitchen waste treatment mode such as landfill, incineration etc. there is secondary pollution risk, and existing fermentation treatment technology still faces many technical bottlenecks in practical application:

[0003] 1, single processing mode: most fermentation devices only support single fermentation mode (aerobic or anaerobic), cannot flexibly adjust process parameters according to garbage component characteristics. For example, aerobic fermentation needs continuous oxygen supply and needs to be stirred to avoid clumping, and anaerobic fermentation needs strictly sealed environment, and existing equipment is difficult to realize efficient switching of two modes, resulting in limited resource utilization efficiency.

[0004] 2, insufficient pretreatment efficiency: kitchen waste components are complex, containing oil, solid impurities and high moisture, and existing treatment devices lack crushing structure or lack dehydration equipment, so that in the fermentation process, often due to uneven particle size, too much moisture, resulting in poor material mixing degree in subsequent fermentation process, low mass transfer efficiency, and even causing local rancidity or clumping problems.

[0005] 3, low temperature control precision: fermentation process is sensitive to temperature, and traditional devices rely on external heating or natural cooling, which is difficult to maintain constant temperature environment. Temperature fluctuation easily leads to microbial activity decline, prolongs fermentation period, and energy consumption is high.

[0006] 4, gas emission and environmental pollution: existing equipment is easy to cause odor emission in feeding, stirring and other links, and methane, hydrogen sulfide and other gases produced by fermentation will aggravate greenhouse effect and air pollution if not effectively collected and treated.

[0007] In view of the above problems, a kitchen waste treatment device integrating efficient pretreatment, multi-mode fermentation, precise temperature control and environmental protection gas treatment function is needed to improve resource utilization efficiency and reduce environmental risk. INVENTION CONTENTS

[0008] In view of the above deficiencies in the prior art, the utility model aims to provide a kitchen waste treatment device integrating efficient pretreatment, multi-mode fermentation, precise temperature control and environmental protection.

[0009] The utility model discloses a kitchen garbage treatment device, including fermentation tank, double shaft shearing type breaker, spiral extruding dewaterer, fermentation tank stirring mechanism, screw conveyor, sewage treatment jar, the inside setting of fermentation tank has the inner bag, the inside setting of inner bag has fermentation tank stirring mechanism, and the outer wall between inner bag and fermentation tank inner wall leaves the heat exchange cavity, the outer wall lower extreme fixed connection of fermentation tank one end has the water inlet pipe, the outer wall upper extreme fixed connection of fermentation tank other end has the water outlet pipe, the water inlet pipe and water outlet pipe all are linked with the heat exchange cavity, the upper fixed connection of fermentation tank has spiral extruding dewaterer, and the discharge port of spiral extruding dewaterer is linked with the inside of inner bag, and the drain of spiral extruding dewaterer is connected with sewage treatment jar through sewage pipe, and the upper fixed connection of spiral extruding dewaterer one side has double shaft shearing type breaker, and the upper of double shaft shearing type breaker is added with the flap, and after completing garbage delivery, the feeding port is sealed through the flap, is used for avoiding the gas dissipation produced during fermentation, the bottom fixed connection of fermentation tank has screw conveyor, the bottom of inner bag is set up and is opened the chute mouth, the chute mouth is linked with screw conveyor, and one end of screw conveyor passes through the end cover after connecting after fermentation tank, and when operating specifically, first of all, the catering waste is delivered to the double shaft shearing type breaker, and the catering waste is broken down through the double shaft shearing type breaker, and the catering waste after breaking down falls into spiral extruding dewaterer, and spiral extruding dewaterer can extrude the excess moisture in catering waste, and the excess moisture is discharged through the drain and is discharged into the sewage treatment jar, and the subsequent sewage is handled conveniently, and the kitchen garbage after dewatering is discharged into the inner bag and is composted and fermented in the inner bag, and in the process, the heat exchange liquid is transported to the heat exchange cavity from the water inlet pipe by the external water circulation system, and then the heat exchange liquid is returned to the external water circulation system from the water outlet pipe, and the inner bag is heated or cooled through the temperature control of the heat exchange liquid, so that the constant temperature of the inner bag is maintained, and the composting process of the catering waste is accelerated, and in addition, the internal waste can be turned over at irregular intervals through the fermentation tank stirring mechanism during the composting process, so that the catering waste can be fully contacted with oxygen, and the agglomeration is avoided, the temperature uniformity of the internal catering waste is improved, and after the fermentation is completed, the end cover is opened, and the screw conveyor is started, and the internal catering waste after the fermentation is discharged quickly through the screw conveyor.

[0010] In the above technical scheme, the outer wall of the inner bag and the inner wall of the fermentation tank are fixedly connected with a plurality of support plates, and a plurality of water holes are uniformly formed on the support plates to maintain a water flow rate of more than 90% while ensuring the structural strength.

[0011] In the above technical scheme, the fermentation tank stirring mechanism comprises stirring paddles, a stirring shaft and a stirring motor, the stirring shaft is rotatably connected in the inner bag, a plurality of stirring paddles are fixedly connected to the stirring shaft, one end of the stirring shaft passes through the inner bag and the fermentation tank in sequence and is connected with the stirring motor, and the stirring motor is fixedly connected to the outer wall of the fermentation tank.

[0012] In the above technical scheme, the observation window is fixedly connected in the observation opening, and the transparent glass is fixedly connected in the observation window.

[0013] In the above technical scheme, the oxygen supply pipe is fixedly connected to the outer wall of the inner container, the air inlet pipe is fixedly connected to the middle part of the oxygen supply pipe, one end of the air inlet pipe is led out from the outer wall of the fermentation tank, an air inlet valve is fixedly installed on the air inlet pipe of the outer wall of the fermentation tank, a plurality of uniformly spaced air supply pipes are fixedly connected to the oxygen supply pipe, the other end of the air supply pipe is connected with the inner container, an air purifier is fixedly installed on the outer wall of one side of the fermentation tank, an air suction pipe is connected to the input end of the air purifier, the air suction pipe is connected with the inner container after penetrating through the fermentation tank, and an air blower is fixedly connected to the output end of the air purifier.

[0014] The utility model discloses the beneficial effect:

[0015] 1, multi-mode fermentation flexible control: through the collaborative control of oxygen supply pipe, air blower and air inlet valve, realize aerobic / anaerobic fermentation mode one key switch, can select efficient fermentation mode for different garbage components, significantly improve the resource efficiency.

[0016] 2, efficient pretreatment improves fermentation quality: the combination design of double-shaft shearing type crusher and spiral extrusion dehydrator effectively completes garbage crushing and refinement and deep dehydration, reduces material moisture content and improves particle size uniformity, avoids fermentation caking and shortens composting period.

[0017] 3, precise temperature control optimizes fermentation environment: the water circulation system cooperates with the water hole of the supporting plate of the heat exchange cavity, realizes the rapid regulation of the temperature of the inner container, maintains constant temperature condition, enhances microbial activity, shortens fermentation time and reduces energy consumption.

[0018] 4, sealing structure restrains gas dissipation: the cover plate seals the feeding opening, and the air purifier and the air blower are combined to purify and treat the fermentation gas, effectively prevent the leakage of odor and greenhouse gas, and reduce the environmental pollution risk. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the rear view three-dimensional structure schematic diagram of the utility model;

[0021] Figure 3 It is the front view cross section structure schematic diagram of the utility model;

[0022] Figure 4 It is the side view cross section structure schematic diagram of the utility model.

[0023] In the figure: 1 fermentation tank, 2 double-shaft shearing type crusher, 3 spiral extrusion dewatering machine, 4 fermentation tank stirring mechanism, 5 screw conveyor, 6 drainage port, 7 inner container, 8 heat exchange cavity, 9 water inlet pipe, 10 water outlet pipe, 11 chute port, 12 support plate, 13 water passage, 14 stirring paddle, 15 stirring shaft, 16 stirring motor, 17 observation window, 18 oxygen supply pipe, 19 air inlet pipe, 20 air inlet valve, 21 gas conveying pipe, 22 air purifier, 23 air extraction pipe, 24 air extraction fan. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0025] Please refer to Figures 1-4The utility model provides a kind of kitchen garbage processing device, including fermentation tank 1, double-shaft shearing type crusher 2, spiral extruding dehydrator 3, fermentation tank stirring mechanism 4, screw conveyor 5, sewage treatment tank, fermentation tank 1 inside is provided with inner bag 7, inner bag 7 inside is provided with fermentation tank stirring mechanism 4, and the outer wall between inner bag 7 and fermentation tank 1 inner wall leaves heat exchange cavity 8, and the outer wall lower end of one end of fermentation tank 1 is fixedly connected with inlet pipe 9, and the outer wall upper end of another end of fermentation tank 1 is fixedly connected with outlet pipe 10, and inlet pipe 9 and outlet pipe 10 are all connected with heat exchange cavity 8, and the upper end of fermentation tank 1 is fixedly connected with spiral extruding dehydrator 3, and the discharge port of spiral extruding dehydrator 3 is connected with the inside of inner bag 7, and the water outlet 6 of spiral extruding dehydrator 3 is connected with sewage treatment tank by sewage pipe, and the upper end of spiral extruding dehydrator 3 is fixedly connected with double-shaft shearing type crusher 2, and double-shaft shearing type crusher 2 is additionally provided with flap, and after completing garbage delivery, flap is sealed to delivery port, for avoiding gas produced by fermentation to escape, and the bottom of fermentation tank 1 is fixedly connected with screw conveyor 5, and the bottom of inner bag 7 is provided with chute opening 11, and chute opening 11 is connected with screw conveyor 5, and one end of screw conveyor 5 is connected with end cover after passing through fermentation tank 1, and when operating specifically, first, catering waste is delivered to double-shaft shearing type crusher 2, catering waste is broken by double-shaft shearing type crusher 2, and then catering waste after breaking falls into spiral extruding dehydrator 3, and spiral extruding dehydrator 3 can extrude excess moisture in catering waste, and excess moisture is discharged into sewage treatment tank by water outlet 6, to facilitate subsequent sewage treatment, and catering waste after dehydration is discharged into inner bag 7 and composted in inner bag 7, during which, external water circulation system delivers heat exchange liquid from inlet pipe 9 to heat exchange cavity 8, and then heat exchange liquid is returned to external water circulation system by outlet pipe 10, to realize heating or cooling of inner bag 7 by temperature control of heat exchange liquid, to maintain constant temperature in inner bag 7, to accelerate composting process of catering waste, in addition, internal waste is turned by fermentation tank stirring mechanism 4 at irregular intervals during composting, to ensure that catering waste can fully contact oxygen, while avoiding clumping, to improve temperature uniformity of internal catering waste, after fermentation, end cover is opened, and screw conveyor 5 is started, to quickly discharge internal catering waste after fermentation by screw conveyor 5.

[0026] The outer wall of the inner bag 7 and the inner wall of the fermentation tank 1 are fixedly connected with a plurality of support plates 12, and a plurality of water holes 13 are uniformly arranged on the support plates 12, which can ensure the structural strength while maintaining a water flow rate of more than 90%.

[0027] The fermenting tank stirring mechanism 4 comprises stirring paddles 14, a stirring shaft 15, and a stirring motor 16, the stirring shaft 15 is rotationally connected in the inner container 7, a plurality of stirring paddles 14 are fixedly connected on the stirring shaft 15, one end of the stirring shaft 15 is connected with the stirring motor 16 after sequentially penetrating through the inner container 7 and the fermenting tank 1, the stirring motor 16 is fixedly connected on the outer wall of the fermenting tank 1, when in use, the stirring motor 16 drives the stirring shaft 15 to rotate, the stirring shaft 15 drives the stirring paddles 14 to rotate, so that the stirring paddles 14 complete the overturning of the catering waste in the inner container 7.

[0028] The fermenting tank 1 and the inner container 7 are provided with observation openings at the same positions, the observation openings are fixedly connected with observation windows 17, and the observation windows 17 are fixedly connected with transparent glasses, which are used for observing the fermentation condition of the internal catering waste.

[0029] The outer wall of the inner container 7 is fixedly connected with an oxygen supply pipe 18, the middle of the oxygen supply pipe 18 is fixedly connected with an air inlet pipe 19, one end of the air inlet pipe 19 penetrates out of the outer wall of the fermenting tank 1, an air inlet valve 20 is fixedly installed on the air inlet pipe 19 located on the outer wall of the fermenting tank 1, a plurality of uniformly spaced air conveying pipes 21 are also fixedly connected on the oxygen supply pipe 18, the other ends of the air conveying pipes 21 are all connected with the inside of the inner container 7, an air purifier 22 is fixedly installed on the outer wall of one side of the fermenting tank 1, an air suction pipe 23 is connected with the input end of the air purifier 22, the air suction pipe 23 penetrates through the fermenting tank 1 and is connected with the inner container 7, and the output end of the air purifier 22 is fixedly connected with an air blower 24, so that the fermenting tank can complete two fermentation modes of aerobic fermentation and anaerobic fermentation.

[0030] When aerobic fermentation is carried out, the air inlet valve 20 is opened, and the air blower 24 and the fermenting tank stirring mechanism 4 are started at the same time, the air blower 24 can suck out the fermentation gas in the inner container 7 and realize the purification treatment of the fermentation gas through the air purifier 22, while the external oxygen-containing air enters the air supply pipe through the air inlet pipe 19, and then is conveyed to the inner container 7 through the uniformly spaced air conveying pipes 21, so that the oxygen content in the inner container 7 is increased, and the catering waste is fully contacted with oxygen in the stirring process, thereby realizing aerobic fermentation.

[0031] When anaerobic fermentation is carried out, the air inlet valve 20 is closed, so that a closed space is formed in the inner container 7, the oxygen in the inner container 7 is gradually consumed through continuous fermentation, so that the anaerobic fermentation is carried out in the oxygen-free environment, and in the anaerobic fermentation process, the stirring operation of the fermenting tank stirring mechanism 4 is only used for uniformly controlling the temperature of the catering waste.

[0032] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0033] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A kitchen waste treatment device, comprising a fermentation tank (1), a double-shaft shearing crusher (2), a spiral extrusion dehydrator (3), a fermentation tank stirring mechanism (4), a spiral conveyor (5), a sewage treatment tank, characterized in that: The inside of the fermentation tank (1) is provided with an inner container (7), the inside of the inner container (7) is provided with a fermentation tank stirring mechanism (4), the outer wall of the inner container (7) and the inner wall of the fermentation tank (1) are left with a heat exchange cavity (8), the lower end of the outer wall of one end of the fermentation tank (1) is fixedly connected with a water inlet pipe (9), the upper end of the outer wall of the other end of the fermentation tank (1) is fixedly connected with a water outlet pipe (10), the water inlet pipe (9) and the water outlet pipe (10) are both connected with the heat exchange cavity (8), the upper end of the fermentation tank (1) is fixedly connected with a spiral extrusion dewatering machine (3), the discharge port of the spiral extrusion dewatering machine (3) is connected with the inside of the inner container (7), the drain port (6) of the spiral extrusion dewatering machine (3) is connected with a sewage treatment tank through a sewage pipe, the upper end of one side of the spiral extrusion dewatering machine (3) is fixedly connected with a double-shaft shearing crusher (2), the bottom of the fermentation tank (1) is fixedly connected with a screw conveyor (5), the bottom of the inner container (7) is provided with a chute opening (11), the chute opening (11) is connected with the screw conveyor (5), one end of the screw conveyor (5) penetrates through the fermentation tank (1) and is connected with an end cover.

2. The kitchen waste treatment device according to claim 1, characterized in that: The outer wall of the inner container (7) and the inner wall of the fermentation tank (1) are fixedly connected with a plurality of support plates (12), a plurality of water passing holes (13) are uniformly arranged on the support plates (12).

3. The kitchen waste treatment device according to claim 1, characterized in that: The fermentation tank stirring mechanism (4) comprises stirring paddles (14), a stirring shaft (15) and a stirring motor (16), the stirring shaft (15) is rotatably connected in the inner container (7), a plurality of stirring paddles (14) are fixedly connected to the stirring shaft (15), one end of the stirring shaft (15) is connected with the stirring motor (16) after penetrating through the inner container (7) and the fermentation tank (1) in sequence, and the stirring motor (16) is fixedly connected to the outer wall of the fermentation tank (1).

4. The kitchen waste treatment device according to claim 1, characterized in that: The same positions of the fermentation tank (1) and the inner container (7) are respectively provided with observation openings, observation windows (17) are fixedly connected in the observation openings, and transparent glasses are fixedly connected in the observation windows (17).

5. The kitchen waste treatment device according to claim 1, characterized in that: The outer wall of the inner container (7) is fixedly connected with an oxygen supply pipe (18), an air inlet pipe (19) is fixedly connected to the middle of the oxygen supply pipe (18), one end of the air inlet pipe (19) penetrates out of the outer wall of the fermentation tank (1), an air inlet valve (20) is fixedly installed on the air inlet pipe (19) of the outer wall of the fermentation tank (1), a plurality of uniformly spaced air supply pipes (21) are also fixedly connected to the oxygen supply pipe (18), the other ends of the air supply pipes (21) are all connected with the inside of the inner container (7), an air purifier (22) is fixedly installed on the outer wall of one side of the fermentation tank (1), an air suction pipe (23) is connected to the input end of the air purifier (22), the air suction pipe (23) is connected with the inner container (7) after penetrating through the fermentation tank (1), and an air suction fan (24) is fixedly connected to the output end of the air purifier (22).

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