CN217391814U

CN217391814U - Kitchen garbage dewatering device

Info

Publication number: CN217391814U
Application number: CN202221054110.2U
Authority: CN
Inventors: 矫锋; 康立; 于文斌; 苏杭
Original assignee: Lvshui Qingshan Environmental Protection Technology Dalian Co ltd
Current assignee: Lvshui Qingshan Environmental Protection Technology Dalian Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-09-09
Anticipated expiration: 2032-05-05

Abstract

The utility model relates to the technical field of kitchen waste dehydration, in particular to a kitchen waste dehydration device, which adopts a screw extrusion dehydration device with variable pitch screw design to improve the problem of winding and blocking during kitchen waste dehydration and adopts a movable-fixed ring water filtering structure to replace the traditional filter screen so as to solve the problem that grease blocks the filter screen, thereby better realizing kitchen waste; comprises a feed chute, a bracket, a screw device, a movable-fixed ring device, an oil-water separator and a driving device. The shaftless variable pitch spiral structure is used as a main device for extrusion dehydration, so that the problem of winding and blockage easily caused in kitchen waste treatment can be effectively solved; the movable-fixed ring device is adopted to replace the traditional filter screen structure, so that the problem that meshes of the filter screen are easily blocked by waste grease is effectively avoided on the basis of ensuring good solid-liquid separation; an oil-water separator is arranged at the rear end of the solid-liquid separation, so that waste oil in the wastewater is further separated, and the waste oil is prevented from blocking a sewage pipeline.

Description

Kitchen garbage dewatering device

Technical Field

The utility model relates to a technical field of rubbish from cooking dehydration especially relates to a rubbish from cooking dewatering device.

Background

The kitchen waste is a part of domestic waste, and mainly comprises leftovers, rotten vegetables and fruits, rotten meat, broken bones, eggshells, internal organs, tea leaves and the like. The kitchen waste has the characteristics of high organic matter content (the organic matter content accounts for more than 80% of the dry matter mass), high water content (80-90%), high oil content, high salinity and the like, and is extremely easy to rot and deteriorate, breed mosquitoes and flies and seriously influence the living environment in the processes of storage, collection, transportation and landfill treatment. Because the kitchen waste has high yield and high water content, if the kitchen waste is directly buried without dehydration, a large amount of garbage percolate which is difficult to treat is generated in the burying process; if the garbage is directly incinerated, the heat value of the garbage is greatly reduced due to the large amount of moisture, the garbage is not beneficial to complete combustion, and highly toxic substances such as dioxin and the like are likely to be generated in the combustion process; kitchen waste with too high water content is not suitable for direct composting, and the water content can prevent air from entering the interior of the garbage pile body, so that an anoxic environment is caused.

The kitchen waste is not only treated by landfill treatment, incineration treatment or composting treatment, but also continuously treated by removing a part of moisture through pretreatment, and the generally adopted method is to stack the kitchen waste in a trough for a period of time and drain the moisture in the waste through the action of gravity, so that the aim of dewatering is fulfilled. However, under the scene of kitchen garbage source processing, the generating source of kitchen garbage is usually located in places such as dining halls, communities and restaurants, and not only enough space is not available for stacking kitchen garbage, but also the surrounding environment does not allow the kitchen garbage to be stacked for a long time and emit peculiar smell, so that the kitchen garbage source processing equipment is usually provided with a dehydration device for mechanical dehydration.

The common kitchen waste dehydration device is in the forms of spiral conveying, paddle stirring, centrifugal dehydration and the like, a filter screen structure is usually adopted for solid-liquid separation, however, components of the kitchen waste are complex, the spiral and the stirring paddle are easy to be wound and blocked, hard impurities such as a conch shell, a big bone rod and the like are easy to damage the spiral and the stirring paddle, and grease contained in the kitchen waste is easy to block the filter screen, so that the invention of the dehydration device which is more specific to the characteristics of the kitchen waste is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an adopt the spiral extrusion dewatering device of displacement spiral design to take place the problem that the winding blockked up when improving the surplus rubbish dehydration in kitchen to through adopting the drainage structure of moving-stationary ring to replace the problem of traditional filter screen in order to solve grease jam filter screen, thereby the surplus rubbish dewatering device in kitchen of better realization rubbish in kitchen.

The utility model discloses a kitchen waste dewatering device, including feed chute, support, screw means, move-stationary ring device, oil-water separator and drive arrangement, the feed chute is the steel structure spare, is used for the interim storage of kitchen waste when the material loading, the support is the steel structure spare, mainly used for the installation and the fixed of each part of equipment, screw means adopts the variable pitch spiral design of no center pin, and kitchen waste is extruded, broken gradually in the spiral to reach the mesh of dehydration, move-stationary ring device is formed by a plurality of movable ring pieces and stationary ring piece staggered arrangement, leaves certain clearance between adjacent movable ring piece, stationary ring piece, guarantees that the waste liquid that kitchen waste deviates from can permeate out, thereby realizes solid-liquid separation's purpose, oil-water separator is used for separating the grease in the waste liquid that the dehydration produced, avoids causing the jam in the grease emits into sewer pipe, the driving device comprises a motor, a speed reducer, a transmission chain and a chain wheel, and drives the rotation of the screw device and the reciprocating motion of the movable ring.

Further, the feed chute is a hopper type steel structural member, and a lower outlet of the feed chute is connected with a screw device; during feeding, kitchen waste is temporarily stored in the trough and gradually falls into the spiral device under the action of gravity to be dewatered.

Further, the bracket is a steel structural member; the device is mainly used for mounting and fixing all parts of equipment.

Furthermore, the screw device comprises a shaftless screw, a bearing seat, a sealing ring, a lining and a gland, the outer diameters of blades of the shaftless screw are the same, the screw pitch is gradually decreased from the feeding end close to the trough to the discharging end, materials are gradually compacted in the screw conveying process to achieve the purpose of extrusion dehydration, the screw adopts a structure without a central shaft, one end of the screw blade is welded with the screw shaft into a whole, the other end of the screw blade freely overhangs, the end of the screw shaft is fixed through the bearing and the bearing seat, the sealing ring is arranged in the bearing seat to prevent kitchen garbage and waste water from leaking from the side of the screw shaft, the end of the screw shaft extending out of the other side of the bearing seat is fixed with a chain wheel, and the screw shaft and the screw blade are driven to rotate under the action of a transmission chain.

Furthermore, one end of the shaftless spiral is fixed through a spiral shaft, the other end of the shaftless spiral freely overhangs, the center of the spiral blade is not penetrated through by a main shaft, and the free end of the spiral blade is ensured not to shake through the structural rigidity of the spiral blade; the structure without the central shaft can effectively prevent sundries such as plastic bags, paper towels, straw ropes and the like in kitchen garbage from being wound in the spiral conveying process, and further prevent the spiral from being blocked and even stop rotating.

Further, a waste liquid collecting tank is arranged at the bottom of the spiral device and is used for collecting waste liquid passing through a gap leakage position of the movable-fixed ring device in a centralized manner; and a liquid outlet is arranged at the bottom of the waste liquid collecting tank and is connected with the oil-water separator.

Furthermore, the movable-fixed ring device comprises movable ring sheets, fixed ring sheets, a crank shaft, a bearing seat and a waste rod, wherein the movable ring sheets and the fixed ring sheets are arranged in a staggered manner, and a certain gap is reserved between the adjacent movable ring sheets and the adjacent fixed ring sheets, so that waste liquid separated from kitchen garbage can be discharged, and the aim of solid-liquid separation is fulfilled; one end of the crank shaft is fixed with a chain wheel which is driven by the transmission chain to rotate, and the crank on the crank shaft further drives the movable ring piece to do reciprocating motion.

Furthermore, the movable ring piece in the movable-fixed ring device reciprocates under the action of the crankshaft, and the stroke is twice of the eccentric distance of the crankshaft; the eccentric distance of the crank shaft is two times of 2 delta e, the fixed ring piece is fixed, relative motion is continuously generated between the fixed ring piece and the fixed ring piece, and the self-cleaning function is realized, so that the phenomenon that the gap between the movable ring piece and the fixed ring piece is blocked by waste oil in water is avoided, and the structure is more reasonable and durable compared with the traditional filter screen water filtering structure.

Further, an axial gap between a movable ring piece and a fixed ring piece in the movable-fixed ring device is 0.2-1 mm; the gap is manually adjustable.

Furthermore, a certain radial clearance s is formed between the outer diameter of the spiral blade of the spiral dewatering device for the kitchen waste and the movable-fixed ring sheet; when the kitchen waste is driven by the shaftless screw to advance, the kitchen waste is rolled into the gap and further crushed, so that the kitchen waste is crushed.

Furthermore, the radial clearance s between the outer diameter of the spiral blade of the spiral dewatering device for the kitchen waste and the movable-fixed ring piece is 0.5-5 mm; if s is too small, interference between the helical blade and the movable-fixed ring piece is easily caused, and if s is too large, the material passes through the gap, so that the dehydration effect is influenced.

Furthermore, the driving device comprises a motor, a speed reducer, a transmission chain and a chain wheel, and is used for driving the rotation of the spiral and the reciprocating motion of the movable ring; the chain wheel on the screw shaft and the chain wheel on the crankshaft of the moving-fixed ring device are driven by the same transmission chain, and the whole transmission only needs one set of motor and speed reducer.

Furthermore, a water inlet of the oil-water separator is connected with a liquid outlet at the bottom of the waste liquid collecting tank, a water outlet of the oil-water separator is connected with a sewage discharge pipe network, waste water is separated in the oil-water separator, waste oil stays in the oil-water separator, and the separated waste water is discharged, so that the waste oil in the waste liquid is prevented from being discharged into a sewage pipeline to cause blockage; the oil-water separator is provided with an oil discharge port, and the oil can be discharged when the waste oil to be separated reaches a certain amount.

Furthermore, a movable cover plate is arranged at the top of the oil-water separator; the cover plate can be opened to clean the inside of the oil-water separator, so that equipment is prevented from being blocked, and the service life is prolonged.

Furthermore, the main body structure (all parts in contact with the kitchen waste) of the spiral dewatering device for the kitchen waste is made of stainless steel materials; oil and salt resistance, corrosion resistance and easy cleaning, and ensures that the service life of the equipment is enough.

Furthermore, the spiral kitchen garbage dehydration device is used for regularly cleaning waste grease collected in an oil-water separator of the spiral kitchen garbage dehydration device and further recycling the waste grease.

Furthermore, the spiral dewatering device for kitchen waste can be used independently for dewatering treatment of kitchen waste, and can also be used in cooperation with other equipment (for example, as a pretreatment station of a biochemical treatment machine for kitchen waste) as a pretreatment process of the kitchen waste.

Compared with the prior art, the beneficial effects of the utility model are that: the shaftless variable pitch spiral structure is used as a main device for extruding and dehydrating kitchen waste, so that the problem of winding and blocking easily caused in kitchen waste treatment can be effectively solved; the movable-fixed ring device is adopted to replace the traditional filter screen structure, so that the problem that meshes of the filter screen are easily blocked by waste grease is effectively avoided on the basis of ensuring good solid-liquid separation; an oil-water separator is arranged at the rear end of the solid-liquid separation, so that waste grease in the wastewater is further separated, and the waste grease is prevented from entering a sewage pipeline to cause blockage.

Drawings

FIG. 1 is a front profile view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1;

FIG. 4 is a schematic diagram of the movement of the moving-stationary ring structure;

FIG. 5 is a schematic view of an oil-water separator;

in the drawings, the reference numbers: 1-feeding groove, 2-driving device, 2.1-motor-reducer, 2.2-driving chain, 2.3-moving ring driving chain wheel, 2.4-spiral driving chain wheel, 3-bracket, 4-moving-fixed ring device, 4.1-moving ring piece, 4.2-fixed ring piece, 4.3-discharging hole, 4.4-waste liquid collecting groove, 4.5-crank shaft, 4.6-pull rod, 5-spiral device, 5.1-shaftless spiral, 5.2-sealing ring, 5.3-bearing seat, 5.4-gland, 5.5-bearing, 6-oil-water separator, 6.1-water inlet, 6.2-sewage outlet, 6.3-partition board, 6.4-water outlet, 6.5-cover board and 6.6-oil discharging hole.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The utility model discloses a kitchen waste dewatering device, including feed chute, support, screw means, move-stationary ring device, oil water separator and drive arrangement, the feed chute is the steel structure spare for the interim storage of kitchen waste when the material loading, the support is the steel structure spare, mainly used for the installation and the fixed of each part of equipment, screw means adopts the variable pitch spiral design of no center pin, and kitchen waste is extruded, broken gradually in the spiral to reach the mesh of dehydration, move-stationary ring device is formed by a plurality of movable ring pieces and stationary ring piece staggered arrangement, leaves certain clearance between adjacent movable, stationary ring piece, guarantees that the waste liquid that kitchen waste deviates from can permeate out, thereby realizes solid-liquid separation's purpose, oil water separator is used for separating the grease in the waste liquid that the dehydration produced, avoids discharging the jam in the grease sewer pipe, the driving device comprises a motor, a speed reducer, a transmission chain and a chain wheel and is used for driving the rotation of the screw device and the reciprocating motion of the movable ring.

Furthermore, the feed chute is a hopper type steel structural member, and the lower outlet of the feed chute is connected with a screw device; during feeding, kitchen waste is temporarily stored in the trough and gradually falls into the spiral device under the action of gravity to be dewatered.

Furthermore, one end of the shaftless spiral is fixed through a spiral shaft, the other end of the shaftless spiral freely overhangs, the center of the spiral blade is not penetrated through by a main shaft, and the free end of the spiral blade is ensured not to shake through the structural rigidity of the spiral blade; the structure without the central shaft can effectively prevent sundries such as plastic bags, paper towels, straw ropes and the like in the kitchen waste from being wound in the spiral conveying process, and further prevent the spiral from being blocked and even stop rotating.

Furthermore, the movable-fixed ring device comprises movable ring sheets, fixed ring sheets, a crank shaft, a bearing seat and a flexible rod, wherein the movable ring sheets and the fixed ring sheets are arranged in a staggered manner, and a certain gap is reserved between the adjacent movable ring sheets and the adjacent fixed ring sheets, so that the waste liquid separated from the kitchen waste can be discharged, and the aim of solid-liquid separation is fulfilled; one end of the crank shaft is fixed with a chain wheel which is driven by the transmission chain to rotate, and the crank on the crank shaft further drives the movable ring piece to do reciprocating motion.

Furthermore, the movable ring piece in the movable-fixed ring device reciprocates under the action of the crankshaft, and the stroke is twice of the eccentric distance of the crankshaft; the eccentric distance of the crankshaft is two times, namely 2 delta e, the fixed ring piece is fixed, relative motion is continuously generated between the crankshaft and the fixed ring piece, and the self-cleaning crankshaft has a certain self-cleaning effect, so that the phenomenon that the gap between the movable ring piece and the fixed ring piece is blocked by waste grease in water is avoided, and the self-cleaning crankshaft is more reasonable and durable compared with a traditional filter screen water filtering structure.

As shown in fig. 1 to 5, the utility model discloses a kitchen waste dewatering device, it is at the during operation, and after operating personnel poured kitchen waste into 1 feed chute, the material fell into 5 screw unit gradually under the action of gravity to remove to 4.3 discharge gates gradually under 5.1 shaftless spiral's promotion, and finally discharge from 4.3 discharge gates. In the moving process, as the screw pitch of the 5.1 shaftless screw is gradually reduced, the material is gradually extruded to realize the dehydration purpose, and meanwhile, the structural design without a central shaft can effectively avoid the winding and the blockage of sundries in the kitchen garbage. Waste liquid extruded from the material leaks down through a gap of the 4-moving-fixed ring device, is collected in a 4.4 waste liquid collecting tank and is discharged into the 6 oil-water separators for oil-water separation, waste grease in the waste liquid is retained in the 6 oil-water separators, and treated waste water is discharged. The 4.1 movable ring piece of the 4 movable-fixed ring device and the 4.2 fixed ring piece are driven by the 2 driving device to do relative reciprocating motion, and the constantly changing gap between the two can realize solid-liquid separation and prevent the blockage caused by material slag and grease.

The kitchen garbage dewatering device of the utility model has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the kitchen garbage dewatering device can be implemented as long as the beneficial effects can be achieved; the utility model discloses a spare part of rubbish from cooking dewatering device is purchase on the market, this industry technical staff only need according to its subsidiary operating specification install and operate can, and need not the technical staff in this field and pay out creative work.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a kitchen garbage dewatering device, its characterized in that includes feed chute, support, screw means, moves-stationary ring device, oil-water separator and drive arrangement, the feed chute is the steel structure spare, the support is the steel structure spare, screw means adopts the displacement spiral of no center pin, move-stationary ring device and form by a plurality of movable ring piece and stationary ring piece staggered arrangement, leave certain clearance between adjacent movable ring piece, the stationary ring piece, drive arrangement includes motor, speed reducer, drive chain and sprocket, drive arrangement drive screw means's the rotation and the reciprocal action of movable ring.

2. The kitchen waste dewatering device of claim 1, wherein the shaftless screw is of a variable pitch design, the pitch decreasing from the inlet to the outlet.

3. The kitchen waste dehydration device of claim 1, wherein the movable-stationary ring device is used for solid-liquid separation instead of a conventional screen structure.

4. The kitchen waste dewatering device of claim 1, wherein the drive means uses a drive motor to drive the screw means and the rotating ring crank simultaneously via a chain drive.

5. The kitchen waste dehydration apparatus as recited in claim 1, wherein an oil-water separator is provided at a rear end of the integrated apparatus.