CN109485466B

CN109485466B - Kitchen waste treatment method and treatment device

Info

Publication number: CN109485466B
Application number: CN201811174956.8A
Authority: CN
Inventors: 周本留; 白树生; 许德运; 宋晓帆
Original assignee: Celebrity Environmental Technology Co ltd
Current assignee: Celebrity Environmental Technology Co ltd
Priority date: 2018-05-15
Filing date: 2018-10-09
Publication date: 2024-04-05
Anticipated expiration: 2038-10-09
Also published as: WO2019219041A1; CN109485466A

Abstract

The invention discloses a kitchen waste treatment method and a treatment device, which comprises an automatic feeding lifting device, a desalting and degreasing device, an oil-water separation device, an automatic sorting device, a drying device, a waste heat recovery device and a control system.

Description

Kitchen waste treatment method and treatment device

Technical Field

The invention relates to the technical field of environmental protection equipment, in particular to a kitchen waste treatment method and a kitchen waste treatment device.

Background

The invention patent number is 201310440932.3, the patent name is patent number of kitchen waste pretreatment equipment, and the patent is that through being equipped with feeding hopper and positive and negative rotation motor in the casing upper end, be equipped with automatic sorting unit in the casing, biological sterilization deodorization drying device, oil water separator, ionization deodorization device and gas condensing equipment, the feeding hopper is linked together with automatic sorting unit's kitchen waste feed inlet through the discharge gate, automatic sorting unit is linked together with the feed inlet in the biological sterilization deodorization drying device through kitchen waste outlet, automatic sorting unit is linked together with oil water separator through the liquid outlet, biological sterilization deodorization drying device is linked together with the gas condensing equipment through the exhaust gate, gas condensing equipment is linked together with ionization deodorization device, the fermentation is even, the heating rate is fast, can automatic oxygenation during fermentation, gas deodorization up to standard, environmental protection pollution free effect has been reached. However, the following substantial disadvantages exist: 1. in the fermentation drying process, the drying temperature is usually 140 ℃ or more due to the adoption of reduced pressure drying, a large amount of high-temperature steam is generated and needs to be treated by an ionization deodorization device, the drying time is long, the energy consumption is high, the steam is emitted outwards due to poor condensation effect, and the nutrients such as beneficial bacteria and proteins contained in kitchen waste are all destroyed due to the fact that the temperature is too high, so that the nutrients such as proteins contained in the kitchen waste are partially destroyed; 2. when the kitchen waste is poured into the feeding hopper, excessive oil water flows into the drying groove through the sorting cylinder, so that the drying time is prolonged, and the drying burden is increased; 3. when kitchen wastes enter the sorting barrel through the feeding hopper to be separated, as the small-diameter filter screen is arranged at the inlet end of the sorting barrel, when long and thin solid matters enter the sorting barrel, the long and thin solid matters are easily inserted into the small-diameter filter screen, so that the load of the separation shaft is increased, the separation effect is poor, and the content of paste discharged from the small-diameter filter screen section of the sorting barrel is high, so that a sewage pipeline is blocked; 4. when equipment needs maintenance, because drying tank, letter sorting section of thick bamboo are whole, need be through professional equipment with axle and drying tank, perhaps axle and letter sorting section of thick bamboo separation, the dismouting is very troublesome, wastes time and energy.

In addition, the existing oil-water separation device has the separation modes of gravity separation, centrifugal separation, electric separation, adsorption separation, air flotation separation and the like, and all the oil-water separation modes have respective substantial defects of long oil-water separation time, low oil extraction efficiency and low oil purity, for example, the gravity separation mode adopts a sedimentation tank mode, so that liquid flow has dead areas, partial liquid cannot be subjected to flow replacement, and organic matters in water can be gradually spoiled and odorized; the air flotation separation mode can generate a great amount of odor; the centrifugal separation type equipment power component is difficult to maintain, and is only applied to laboratory analysis equipment and the like at present.

In addition, the oil-water separation by the separation method is incomplete, so that the oil product is poor, and the storage and the reutilization are difficult.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a more perfect kitchen waste treatment method.

The second aim of the invention is to provide a kitchen waste treatment device which has novel structure, short treatment time, low power consumption, environmental protection, no odor emission, high equipment operation stability and good separation effect

The technical scheme adopted for solving the technical problems is as follows:

A kitchen waste treatment method is characterized in that when materials are automatically treated, a PLC (programmable logic controller) instructs a hopper electric valve to open a sealing cover, meanwhile, a flashboard driving motor is started to act to drive a flashboard to seal a discharge hole, then the flashboard is stopped, and meanwhile, a forward and reverse rotation motor is started to rotate reversely, so that shaftless screws crush and squeeze kitchen waste falling into a feeding hopper, meanwhile, a water pump in a salt and lipid reducing device is started, water is sprayed to the feeding hopper wall through a flushing pipe, oil salt adhered to the feeding hopper wall is timely removed, salt and lipid reducing treatment is carried out on the materials entering the feeding hopper, oil discharged after the materials are wrung and sprayed is collected through a liquid collecting groove and then discharged into the oil and water separating device through a liquid discharging pipe, after the kitchen waste is wrung, the PLC controller instructs the forward and reverse rotation motor to rotate positively and negatively, the separation motor rotates positively and downwardly, and the conveying motor is conveyed positively, the flashboard driving motor drives the flashboard to move upwards, the discharging hole is opened, the forward and backward rotating motor drives the shaftless spiral to rotate, the twisted and extruded materials are pushed into the sorting cylinder through the discharging hole, when the materials enter the sorting cylinder, under the rotation action of the separating shaft, the long and thin materials such as a knife, a fork, chopsticks and the like are led out through the separating blades, other paste materials and hard materials such as bones and the like collide with the filter screen under the centrifugal action of the separating shaft and the centrifugal action in the moment, the smashed materials and the paste materials enter the flow guiding cavity through the filter screen, the flow guiding of the right-handed guide blade and the cooperation of the left-handed baffle are blocked, the materials are quickly pushed into the feeding hole of the drying groove through the discharging hole under the rotation action of the conveying shaft by the connecting material guiding plate, the PLC controller opens the electric ball valve, the materials enter the drying groove, and then the electric ball valve is closed,

The PLC controller instructs the stirring motor to act so as to drive the stirring shaft in the drying tank to stir and dry materials, in the drying process, the PLC controller instructs the electric heating element of the interlayer of the drying tank to electrically heat, when the temperature in the drying tank rises to 80 ℃, the electric heating is stopped, the PLC controller starts the vacuum pump to start vacuumizing the drying tank, when the vacuum in the drying tank reaches-0.06 MPa, the compressor is stopped with the heat belt, the compressor starts to enter a drying stage, meanwhile, the PLC controller instructs the waste heat recovery device 7 to work, after the waste heat recovery device 7 exchanges heat with steam generated in the drying process of the materials in the drying device 5, the heat of the steam is condensed to form hot water of 50-120 ℃ by the waste heat recovery device, wherein one part of the hot water of 50-120 ℃ is transmitted into the interlayer and the hollow structure of the stirring shaft in the drying tank, the other part of the hot water is transmitted into the flushing water tank 19 to the flushing device for degreasing and the kitchen waste is flushed by the salt-removing device 1 at 50-70 ℃ in the water tank 19; in the heating process, the helical blades on the stirring shaft fully stir the pasty kitchen waste, so that the influence on the drying quality caused by uneven stirring of the kitchen waste in the drying tank is avoided, the pressure in the drying tank is always kept at-0.081 to-0.099 MPa in the drying process, the boiling point in the drying tank can be boiled at 50-65 ℃ without heating to 100 ℃, the drying speed of the material in the tank is obviously accelerated, the drying time is shortened, and the energy consumption is obviously saved;

Meanwhile, the temperature is reduced through the waste heat recovery device, condensed water with peculiar smell which is changed into liquid after the temperature is reduced passes through the vacuum pump, and is discharged into the circulating water tank of the vacuum pump, flows into the oil-water separation device along with the overflow port of the circulating water tank of the vacuum pump, and is finally discharged into the sewage treatment system;

when the water temperature sensor detects that the water temperature in the water tank is greater than or equal to 40 ℃, the water supplementing valve of the water tank acts, cold water is supplemented to the water tank to be cooled to be less than or equal to 33 ℃, and then water supplementing is stopped;

in the drying stage of the drying tank, when the pressure sensor of the drying tank detects that the pressure in the drying tank is lower than-0.06 MPa for 5 minutes, triggering a vacuum pressure abnormality fault alarm, wherein an alarm signal can be displayed on a touch screen; or on a PC computer, or a cell phone.

When the temperature sensed by the interlayer temperature sensor of the interlayer of the drying groove reaches the set temperature of 90-110 ℃, the PLC controller instructs the stirring motor to stop, the waste heat recovery device stops working, and when the temperature sensed by the interlayer temperature sensor is reduced to the set temperature, the PLC controller instructs the alarm to make a sound to prompt discharging.

When the oil-water separation device performs oil-water separation, the oil and water are separated efficiently in a temperature range in which the oil reaches the freezing point and the water does not reach the freezing point through the difference of the freezing points of the oil and the water.

The method comprises the following steps:

1) Manufacturing a condensing plate;

2) Cooling and condensing the condensing plate so that the temperature of the condensing plate is higher than the freezing point of water and equal to or lower than the freezing point of oil;

3) Placing the bottom surface of the condensed condensing plate and contacting the upper surface of liquid in the stationary case containing oil, condensing the oil suspended on the surface of the liquid into grease and adhering the grease to the condensing plate;

4) Scraping the grease adhered to the condensing plate by using a scraping plate;

because the buoyancy of the oil is greater than that of water and impurities and the oil is suspended on the surface of the liquid, the oil-water residue can be thoroughly separated by repeating the steps 1-4 repeatedly, and the oil extraction purity and the oil extraction efficiency are obviously improved.

The invention also comprises the step 5: the scraped oil removal tank is heated to enable the oil to form liquid oil after being heated and flow into the oil receiving barrel rapidly.

The condensing plate in the step 1) is composed of a flat plate and a cold plate evaporator, wherein the cold plate evaporator is fixed on the flat plate, the cold plate evaporator is connected with a heat pump system, the heat pump system is connected with a temperature control switch, and the flat plate is made of a temperature-conducting material.

The oil removing groove in the step 5 is formed by a groove body and an oil-cooled condenser below the groove body, and the oil-cooled condenser is connected with a heat pump system.

The temperature control switch can adopt a PLC controller to achieve the function of automatic control.

The kitchen waste treatment device comprises a solid-liquid separation device, an oil-water separation device, an automatic sorting device, a drying device and a control system, wherein the drying device comprises a drying tank, a stirring shaft and a stirring motor, the stirring shaft is provided with stirring blades, two ends of the stirring shaft are fixedly connected with the drying tank through a bearing and a bearing seat respectively, the stirring shaft is connected with the stirring motor, a heating element is arranged in an interlayer between an inner layer and an outer layer of the drying tank, a temperature sensor is arranged on the outer layer, a discharging hole is arranged at the lower part of the drying tank, and a discharging sealing door is arranged on the discharging hole; in addition, the negative pressure reduces the boiling point of water in the material, and at the moment, when the temperature in the drying tank is about 50-65 ℃, the water in the material can be boiled without heating the material to 100 ℃, so that the energy consumption of the drying time is greatly shortened; meanwhile, the waste heat recovery device condenses the steam with odor generated in the drying process, so that odor molecules are dissolved in the condensed water and discharged into the sewage treatment system, and the odor is avoided.

The solid-liquid separation device comprises a feeding hopper, a forward and reverse rotation motor and a shaftless screw, wherein the shaftless screw is arranged in the feeding hopper, a liquid collecting tank is arranged at the bottom of the feeding hopper, a sealing cover is arranged at the upper end of the feeding hopper, a filter screen plate is arranged between the feeding hopper and the liquid collecting tank, a sealing device is arranged on a discharge hole of the feeding hopper, the bottom surface of the liquid collecting tank is inclined so as to facilitate fluid diversion, the liquid collecting tank is communicated with an oil-water separation device through an infusion pipeline, one end of the shaftless screw is fixedly connected with the forward and reverse rotation motor, the other end of the shaftless screw corresponds to a discharge hole arranged on the side wall of the feeding hopper, the forward and reverse rotation motor is connected with a control system, the discharge hole is sealed through the sealing device, the control system starts the forward and reverse rotation motor to crush and squeeze kitchen wastes entering the feeding hopper, the kitchen wastes are extruded, the oil-water is flowed into the liquid collecting tank through the filter screen plate, and flows into the liquid collecting tank through the infusion pipeline to be processed after most of the water and grease are extruded, the control system instructs the forward and reverse rotation motor to drive the forward and reverse rotation of the oil-water separation device, and the reverse rotation motor is simultaneously driven to drive the sealing device to move up, the forward and reverse rotation motor is opened, the water content of the kitchen wastes is greatly reduced, and the dry kitchen wastes are discharged and the dry kitchen wastes are greatly reduced, and the dry waste is discharged and the dry kitchen waste is greatly and the dry and the waste is reduced.

The solid-liquid separation device can be provided with the desalting and degreasing device, the desalting and degreasing device comprises a flushing pipe, a flushing electromagnetic valve, a flushing pump and a flushing water tank, the flushing pipe is fixed on the inner side wall of the feeding hopper, the flushing pipe is connected with the flushing pump through the flushing electromagnetic valve, the flushing pump is connected with the flushing water tank, the flushing electromagnetic valve and the flushing pump are respectively controlled by a control system so as to facilitate spraying flushing on the periphery of the feeding hopper, oil salt is prevented from adhering to the wall of the feeding hopper, and meanwhile, kitchen wastes are flushed, so that the salinity and grease of the kitchen wastes are greatly reduced, and the kitchen wastes are more suitable for being used as feed additives or ecological fertilizer raw materials.

The sealing device can comprise a flashboard and a power driving device, wherein the power driving device can be an air cylinder or can also consist of a screw rod, a screw seat and a flashboard driving motor, the flashboard penetrates through a flashboard perforation to be matched and sealed with the end face of a discharge hole, the flashboard driving motor is connected with the screw rod, the screw seat is connected with the flashboard, the flashboard driving motor rotates to drive the screw rod to rotate, the screw rod rotates to drive the screw seat to move up and down so as to drive the flashboard to move up and down, the flashboard penetrates through the flashboard perforation to be matched and sealed with the end face of the discharge hole, when kitchen wastes with high water content enter a feeding hopper, the flashboard driving motor drives the flashboard to seal the discharge hole, and after most of water is wrung out, the control system instructs the forward and backward rotation motor to move down simultaneously, so that the discharge hole is opened.

The clearance between the shaftless spiral end part and the flashboard is 2-10mm, so that the recovery extrusion of materials close to the flashboard is facilitated, and then the reverse conveying is performed, so that the effects of complete extrusion and complete conveying of the materials are ensured.

According to the invention, the cutting edge can be arranged at the lower end of the flashboard so as to cut the material falling below the flashboard, and the flashboard can be ensured to completely seal the discharge hole.

The automatic sorting device comprises a sorting cylinder, a cover plate, a crushing cutter, a separating shaft, separating blades, a filter screen, a separating motor and a material flow guiding device, wherein the upper end of the sorting cylinder is connected with the cover plate, the filter screen at the bottom of the sorting cylinder is formed by sequentially connecting a pore-free discharging section at the inlet end and a pore-free discharging section connected with the pore-free discharging section, a flow guiding cavity is arranged at the lower part of the filter screen, a flushing water collecting tank is arranged at one side of the lower end surface of the flow guiding cavity, a discharging opening is arranged at the other side of the lower end surface of the flow guiding cavity, a material flow guiding device is arranged in the flow guiding cavity, the flushing water collecting tank is isolated from the flow guiding cavity through a filtrate screen so as to facilitate the secondary filtering and separation of water of materials, the bottom of the flushing water collecting tank is inclined and communicated with the oil-water separating device, the discharging opening is communicated with a feeding opening of a drying tank, the material flow guiding device comprises a conveying shaft and a conveying speed reducer, the conveying shaft is fixed on the material guide cavity through a bearing, the conveying shaft is driven by a conveying speed reducer, the conveying speed reducer is controlled by a control system, right-handed guide vanes, connecting material guide plates and left-handed baffle plates are sequentially arranged on the conveying shaft from left to right, the right-handed guide vanes are spirally wound along the axial direction of the conveying shaft, the connecting material guide plates are axially fixed on the conveying shaft, one ends of the connecting material guide plates are fixedly connected with the right-handed guide vanes, the other ends of the connecting material guide plates are fixedly connected with the left-handed baffle plates, the right-handed guide plates correspond to flushing water collecting tanks, the connecting material guide plates correspond to the discharging openings, when the slender solid matters enter the sorting cylinder, the slender solid matters are guided onto the separating blades through the guiding of the separating blades in the non-hole discharging section, and under the rotating action of the separating shaft, the slender solid matters such as plastic bags, knives, forks, big materials such as chopsticks or lunch boxes are led out through the separating blades and enter the household garbage outlet, the sorted sauced kitchen waste enters the flow guiding cavity through the filter screen, after being blocked through the cooperation of the flow guiding of the right-handed guide blade and the left-handed baffle, the materials are quickly pushed into the feed inlet of the drying groove through the feed inlet by the connecting guide plate under the rotation action of the conveying shaft, and the electric ball valve is opened through the control system, so that the materials enter the drying groove, and further the problem that the materials are accumulated in the sorting barrel and cannot be discharged is further avoided.

According to the invention, the conveying shaft can adopt a hollow water injection cavity, a flushing hole is formed in the side wall of the conveying shaft, one end of the conveying shaft is communicated with a flushing pump in a flushing water tank through a rotary joint, the flushing pump is controlled by a control system, the water injection cavity is communicated with the flushing hole, after sorting is finished, flushing water is injected into the water injection cavity of the conveying shaft, a filter screen, a filtrate screen and a diversion cavity are automatically flushed through the flushing hole, flushed sewage flows down to a flushing liquid collecting tank through the filtrate screen and flows into an oil-water separation device through a pipeline, and cleaning is greatly facilitated.

The mesh size of the filtrate net is 2-10mm, so that the effect of further filtering the fluid is achieved.

According to the invention, the stirring shaft, the stirring rod and the spiral blades in the drying tank are respectively in a hollow communicated structure, one end of the stirring shaft is provided with the rotary joint, the inner cavity of the stirring shaft is provided with the water inlet pipe, the inner walls of the water inlet pipe and the stirring shaft are provided with the backwater gap, one end of the water inlet pipe is connected with the water tank through the rotary joint, the other end of the water inlet pipe is closed, the side wall of the water inlet pipe passes through the cavity of the stirring rod and is communicated with the inner cavity of the spiral blades through the water distribution pipe, and the spiral blades are provided with backwater holes, so that water enters the backwater gap between the water inlet pipe of the stirring shaft and the stirring shaft through backwater Kong Fanliu and flows back into the water tank, absorbed heat energy is transmitted to the stirring shaft and the stirring blades through the waste heat recovery device, and then the material is repeatedly stirred and heated through the positive pressure heat and the stirring blades in the hollow structure of the stirring shaft, and the negative pressure low boiling point heating of the material is performed through the interlayer of the tank body, so that the drying speed of the material in the tank is remarkably accelerated, and the energy consumption is remarkably saved.

The drying tank consists of a lower middle slotting body and an upper middle slotting body, wherein the lower middle slotting body is fixedly and hermetically connected with the upper middle slotting body through a sealing ring and a fixing bolt, the lower middle slotting body is provided with a hollow inner cavity, an electric heating device and a heat conducting medium are arranged in the hollow inner cavity, the electric heating device is controlled by a control system, and the heat conducting medium is communicated with a waste heat recovery device so as to achieve the effects of convenient installation and maintenance.

According to the invention, the circumference of the end face of the lower middle slotting body can be provided with the sealing clamping groove, and the sealing ring is positioned through the sealing clamping groove so as to achieve the effect of quick installation.

The sorting cylinder consists of an upper middle-opening cylinder body and a lower middle-opening cylinder body, wherein the upper middle-opening cylinder body is fixedly and hermetically connected with the lower middle-opening cylinder body through a rubber sealing ring and a fixing bolt so as to achieve the effects of convenient installation and maintenance.

According to the invention, the circumference of the end face of the upper middle-opening cylinder body is provided with the sealing groove, and the rubber sealing ring is positioned through the sealing groove so as to achieve the effect of rapid installation.

According to the invention, the overflow port can be arranged on the vacuum pump circulating water tank, and the vacuum pump circulating water tank is communicated with the oil-water separation device through the overflow port, so that when water in the vacuum pump circulating water tank reaches a set water level line, the water flows into the oil-water separation device through the overflow port.

The waste heat recovery device comprises a first refrigerating unit and a second refrigerating unit, wherein the first refrigerating unit comprises a compressor, a condenser, an expansion valve and a surface cooler, a steam outlet of the drying groove is sequentially connected with the surface cooler of the first refrigerating unit and the surface cooler of the second refrigerating unit through a steam filter and a vacuum pump, so that the waste heat recovery process is maintained at the pressure of-0.081-0.099 MPa, and the condenser of the second refrigerating unit is connected with a flushing water tank through a water pump; the condenser that can set up refrigerating unit one is in the intermediate layer, also can set up the condenser outside the drying vat, be linked together with the condenser through heat exchange circulation pipeline, in order to do benefit to the heat energy through the steam in the waste heat recovery device absorption drying vat, in the intermediate layer of drying vat is passed through to the heat energy of condenser on the one hand with steam, dry the material in the drying vat, on the other hand in with heat energy transfer to the flush tank, wash kitchen waste through the salt reduction lipid-lowering device, waste heat recovery has not only been realized, but also the energy consumption has been obviously practiced thrift, and heating time has been shortened.

The control system comprises a PLC controller, a touch screen with a human-computer interface, an alarm and a monitoring sensor, wherein the monitoring sensor, the alarm and the touch screen are respectively connected with the PLC controller, the monitoring sensor comprises an interlayer temperature sensor, a tank body pressure sensor, an interlayer water level sensor, an electric heating pipe temperature sensor, a circulating water tank liquid level sensor, a compressor high-pressure sensor and a compressor low-pressure sensor, the interlayer temperature sensor, the interlayer pressure sensor and the interlayer water level sensor are respectively arranged in an interlayer of the tank body, the tank body pressure sensor is arranged in an inner cavity of the tank body, the electric heating pipe temperature sensor is arranged at the tail end of the electric heating pipe, the circulating water tank temperature sensor and the circulating water tank liquid level sensor are respectively arranged in the circulating water tank, the compressor high-pressure sensor is arranged on an air outlet pipe of the compressor, and the compressor low-pressure sensor is arranged on an air inlet pipe of the compressor so as to detect the pressure of the compressor, so that the PLC can automatically receive information from the monitoring sensor through a touch control mode on a touch screen, and instruct an electric ball valve and/or a heating element and/or a waste heat recovery device in a negative drying tank to act, so that materials in the tank are quickly dried under the conditions of negative pressure, low temperature and sealing, air pollution caused by odor emission in the air is avoided, and meanwhile bacteria in the materials are eliminated, and damage to protein and cellulose is avoided.

According to the invention, the expansion valve control board can be arranged in the PLC, and the expansion valve is connected with the PLC through the expansion valve control board, so that the expansion valve is controlled by the expansion valve control board, and the temperature of the tank body is enabled to rise steadily.

According to the invention, the pipeline between the steam filter and the surface cooler can be provided with the vacuum pressure release valve, and the vacuum pressure release valve is connected with the PLC controller so as to achieve the effects of automatically controlling pressure release and cleaning the filter element.

The upper end of the charging hopper can be provided with the sealing cover, the sealing cover is connected with the charging hopper through the hopper electric valve, and the hopper electric valve is connected with the PLC controller so as to be beneficial to automatically controlling the switching of the charging hopper through the PLC controller.

The invention can also be provided with a Bluetooth communication module in the PLC, and the PLC is connected with a mobile phone and a computer terminal through a wireless communication module so as to realize real-time monitoring of equipment through the mobile phone and the computer terminal.

By adopting the structure and the method, the invention has the advantages of novel structure, high automation degree, remarkable solid-liquid separation effect, short drying time, energy conservation, low power consumption, environmental protection, no odor emission, high equipment operation stability and the like.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present invention.

Fig. 2 is a left side view of fig. 1.

FIG. 3 is a schematic view of the structure of the solid-liquid separator and the sorter of the present invention.

Fig. 4 is a schematic structural view of the vacuum drying apparatus of the present invention.

Fig. 5 is a cross-sectional view of the top view of fig. 4.

Fig. 6 is a schematic structural diagram of the vacuum drying apparatus and the waste heat recovery apparatus of the present invention.

FIG. 7 is a schematic illustration of the process of the present invention.

Fig. 8 is a process flow diagram of the present invention.

Fig. 9 is a schematic perspective view of a conveying shaft according to the present invention.

Fig. 10 is a rear view of fig. 9.

FIG. 11 is a schematic exploded view of a drying tank according to the present invention.

Fig. 12 is a schematic exploded view of the sorting barrel of the present invention.

Fig. 13 is a schematic exploded view of the sorting barrel of the present invention.

Fig. 14 is a schematic view of the structure of the oil-water separator in the present invention.

Fig. 15 is a top view of fig. 14.

Fig. 16 is a left side view of fig. 14.

Fig. 17 is a right side view of fig. 14.

Reference numerals: the salt-reducing lipid-lowering device 1, the solid-liquid separation device 2, the oil-water separation device 3, the automatic sorting device 4, the drying device 5, the waste heat recovery device 7, the vacuum pump 9, the electric ball valve 10, the drying tank 11, the stirring shaft 12, the stirring motor 14, the heating element 15, the stirring blade 16, the stirring rod 17, the flushing water tank 19, the flushing pump 20, the vacuum pump circulation water tank 21, the flushing pipe 22, the hopper 23, the counter-rotating motor 24, the shaftless screw 25, the filter screen 26, the flashboard 27, the screw rod 28, the flashboard driving motor 29, the steam filter 30, the liquid collecting tank 31, the sorting cylinder 32, the cover plate 33, the crushing knife 34, the filter screen 35, the separating blade 36, the main shaft 37, the separating motor 38, the filtrate screen 39, the rotary joint 41, the conveying speed reducer 43, the conveying shaft 45, the nonporous discharging section 46, the porous discharging section 47, the material guiding cavity 48, the feed opening 49, the household garbage outlet 50, the flushing water collecting tank 52 left-handed baffle 53, right-handed material guide plate 54, flushing hole 55, first refrigeration unit 56, second refrigeration unit 57, compressor 58, condenser 59, expansion valve 60, surface cooler 61, filter screen plate 62, connecting material guide plate 64, lower and upper middle grooved bodies 65 and 66, upper and middle open cylinder 67, lower and middle open cylinder 68, cabinet 71, cabinet cover 72, control device 73, blow-down device 74, sewage intake pipe 75, condensation oil extraction mechanism 76, oil scraping mechanism 77, oil removal mechanism 78, refrigeration and heating system 79, condensation plate 80, oil scraping plate 81, movable oil storage tank 82, oil pushing plate 83, oil pushing butt plate 84, oil removal tank 85, oil removal plate 86, oil removal butt plate 87, oil receiving tank 88, sewage pump 89, sewage drain tank 90, blow-down pipe 91, water-cooled condenser 92, cold plate evaporator 93, oil removal condenser 94, slag screen 95, backwash pipe 96, oil removal screen 95, sewage evacuation piping 97, sewage evacuation valve 98, overflow pipe 99, check valve 100, inclined chassis bottom plate 101, cold plate speed reducer 102, cold plate screw 103, cold plate guide bar 104, upper cover plate 105, oil scraping speed reducer 106, moving screw 107, guide slide 108, slider 109, moving nut 110, oil removing speed reducer 111, oil removing screw 112, and gas spring 114.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in the drawing, a kitchen waste treatment device comprises a solid-liquid separation device 2, an oil-water separation device 3, an automatic sorting device 4, a drying device 5 and a control system, wherein the drying device 5 comprises a drying tank 11, a stirring shaft 12 and a stirring motor 14, stirring blades 16 are arranged on the stirring shaft 12, two ends of the stirring shaft 12 are fixedly connected with the drying tank 11 through bearings and bearing seats respectively, the stirring shaft 12 is connected with the stirring motor 14, a heating element is arranged in an interlayer between an inner layer and an outer layer of the drying tank 11, a temperature sensor is arranged on the outer layer, a discharge port is arranged at the lower part of the drying tank 11, and a discharge sealing door is arranged on the discharge port; in addition, the negative pressure reduces the boiling point of water in the material, and at the moment, when the temperature in the drying tank is about 50-65 ℃, the water in the material can be boiled without heating the material to 100 ℃, so that the energy consumption of the drying time is greatly shortened; meanwhile, the waste heat recovery device 7 condenses the steam with odor generated in the drying process, so that odor molecules are dissolved in the condensed water and discharged into the sewage treatment system, and the generation of odor is avoided.

The solid-liquid separation device comprises a feeding hopper 23, a forward and reverse rotation motor 24 and a shaftless screw 25, wherein the shaftless screw 25 is arranged in the feeding hopper 23, a liquid collecting tank 31 is arranged at the bottom of the feeding hopper 23, a sealing cover is arranged at the upper end of the feeding hopper, a filter screen plate 62 is arranged between the feeding hopper 23 and the liquid collecting tank 31, a sealing device is arranged on a discharge hole of the feeding hopper 23, the bottom surface of the liquid collecting tank 31 is inclined so as to facilitate fluid diversion, the liquid collecting tank 31 is communicated with the oil-water separation device 3 through an infusion pipeline, one end of the shaftless screw 25 is fixedly connected with the forward and reverse rotation motor 24, the other end of the shaftless screw is corresponding to a discharge hole formed in the side wall of the feeding hopper 23, the forward and reverse rotation motor 24 is connected with a control system, the discharge hole is sealed through the sealing device, the control system starts the forward and reverse rotation motor 24 to crush and squeeze kitchen wastes entering the feeding hopper 23, oil and water in kitchen wastes are extruded, the oil and water in the kitchen wastes are downwards flowed to the liquid collecting tank 31 through the filter screen plate 62, the oil and water in the oil-water collecting tank 31 flows into the oil-water separation device to be treated through the infusion pipeline, and then the oil-water is greatly transferred into the drying device, and the kitchen wastes are greatly reduced, and the water consumption is greatly reduced by the drying waste is reduced by driving the forward and reverse rotation of the drying device after the kitchen waste is pushed out through the rotary drying drum and the drying drum, and the drying drum is greatly reduced, and the water consumption is greatly reduced when the water is greatly reduced and is discharged by the drying and is discharged through a drying drum and is greatly and is converted through a drying drum and has a drying drum.

The solid-liquid separation device can be provided with the desalting and degreasing device, the desalting and degreasing device 1 comprises a flushing pipe 22, a flushing electromagnetic valve, a flushing pump 20 and a flushing water tank, the flushing pipe 22 is fixed on the inner side wall of the feeding hopper, the flushing pipe is connected with the flushing pump through the flushing electromagnetic valve, the flushing pump is connected with the flushing water tank, and the flushing electromagnetic valve and the flushing pump are respectively controlled by a control system so as to facilitate spraying and flushing the periphery of the feeding hopper, avoid the adhesion of oil salt on the wall of the feeding hopper 23, and simultaneously flush kitchen wastes, thereby greatly reducing the salt and grease of the kitchen wastes and enabling the kitchen wastes to be more suitable for being used as feed additives or ecological fertilizer raw materials.

The sealing device can comprise a gate 27 and a power driving device, wherein the power driving device can be an air cylinder or a liquid cylinder, or can also be composed of a lead screw 28, a screw seat and a gate driving motor 29, the gate 27 penetrates through a gate perforation to be matched and sealed with the end face of a discharge hole, the gate driving motor 29 is connected with the lead screw 28, the screw seat is connected with the gate 27, the gate driving motor 29 rotates to drive the lead screw 28 to rotate, the lead screw 28 rotates to drive the screw seat to move up and down, so as to drive the gate 27 to move up and down, the gate 27 penetrates through the gate perforation to be matched and sealed with the end face of the discharge hole, when kitchen wastes with high water content enter the feeding hopper 23, the gate driving motor 29 drives the gate 27 to seal the discharge hole, and after most of water is wrung out, the control system instructs the forward and backward rotation motor 24 to move down simultaneously to drive the gate 27 to open the discharge hole.

The gap between the end of the shaftless screw 25 and the flashboard 27 is 2-10mm, so that the recovery extrusion of materials close to the flashboard 27 is facilitated, and then the reverse conveying is performed, so that the effects of complete extrusion and complete conveying of the materials are ensured.

The invention can be provided with a cutting edge at the lower end of the flashboard 27 so as to cut the materials falling below the flashboard, thereby ensuring that the flashboard can completely seal the discharge hole.

The automatic sorting device 4 comprises a sorting cylinder 32, a cover plate 33, a crushing cutter 34, a main shaft 37, a separating blade 36, a filter screen 35, a separating and separating motor 38 and a material guiding device, wherein the upper end of the sorting cylinder 32 is connected with the cover plate, the filter screen 35 at the bottom of the sorting cylinder 32 is formed by sequentially connecting a hole-free discharging section at the inlet end and a hole-free discharging section 46, a guiding cavity is arranged at the lower part of the filter screen, a flushing water collecting tank 52 is arranged at one side of the lower end surface of the guiding cavity, a discharging opening 49 is arranged at the other side of the lower end surface of the guiding cavity, a material guiding device is arranged in the guiding cavity, the flushing water collecting tank 52 is isolated from the guiding cavity through a filtrate screen 39 so as to facilitate the secondary filtering and separating of water of the material, the bottom of the flushing water collecting tank 52 is inclined and communicated with the oil-water separating device, the discharging opening 49 is communicated with a feeding opening of a drying groove, the material guiding device comprises a conveying shaft 45 and a conveying speed reducer 43, wherein the conveying shaft 45 is fixed on a material guiding cavity 48 through a bearing, the conveying shaft 45 is driven by the conveying speed reducer 43, the conveying speed reducer 43 is controlled by a control system, right-handed guide vanes 54, connecting guide plates 64 and left-handed baffle plates 53 are sequentially arranged on the conveying shaft 45 from left to right, the right-handed guide vanes are spirally wound along the axial direction of the conveying shaft, the connecting guide plates are axially fixed on the conveying shaft, one ends of the connecting guide plates are fixedly connected with the right-handed guide vanes, the other ends of the connecting guide plates are fixedly connected with the left-handed baffle plates, the right-handed guide vanes correspond to flushing water collecting tanks, the connecting guide plates correspond to a discharging opening, when an elongated solid enters the sorting cylinder 32, the elongated solid is guided onto the separating blades through the guide vanes in the non-porous discharging section 20, under the rotation of the main shaft 37, large substances such as plastic bags, knives, forks, chopsticks or lunch boxes are led out through the separating blades and enter the household garbage outlet, the sorted sauce-shaped kitchen waste enters the flow guiding cavity through the filter screen, after being blocked through the cooperation of the flow guiding of the right-handed guide blade and the left-handed baffle, the materials are quickly pushed into the feed inlet of the drying tank through the feed inlet under the rotation of the conveying shaft through the connecting guide plate, and the electric ball valve is opened through the control system, so that the materials enter the drying tank, and further the problem that the materials are accumulated in the sorting barrel and cannot be discharged is further avoided.

According to the invention, a hollow water injection cavity can be adopted for the conveying shaft, a flushing hole 55 is formed in the side wall of the conveying shaft, one end of the conveying shaft 45 is communicated with a flushing pump in a flushing water tank through a rotary joint 41, the flushing pump is controlled by a PLC control system, the water injection cavity is communicated with the flushing hole 55, flushing water is injected into the water injection cavity of the conveying shaft after sorting is finished, a filter screen, a filtrate screen and a diversion cavity are automatically flushed through the flushing hole, flushing sewage flows down to a flushing liquid collecting tank through the filtrate screen, and then flows into an oil-water separation device through a pipeline, so that cleaning is greatly facilitated.

The mesh of the filtrate mesh 39 of the present invention is 2-10mm to achieve further filtering of the fluid.

According to the invention, the stirring shaft 12, the stirring rod 17 and the spiral blades 16 in the drying groove 11 are respectively in a hollow communicated structure, one end of the stirring shaft 12 is provided with a rotary joint, the center of the inner cavity of the stirring shaft 12 is provided with a water inlet pipe, the inner walls of the water inlet pipe and the stirring shaft 12 are provided with a backwater gap, one end of the water inlet pipe is connected with a water tank through the rotary joint, the other end of the water inlet pipe is closed, the side wall of the water inlet pipe penetrates through the stirring rod cavity through a water distribution pipe and is communicated with the inner cavity of the spiral blades 16, and backwater holes are formed in the spiral blades 16, so that water enters the backwater gap between the water inlet pipe of the stirring shaft and the stirring shaft through backwater Kong Fanliu and flows back into the water tank, absorbed heat energy is transmitted to the stirring shaft 12 and the stirring blades through the waste heat recovery device 7, the heat transmission area is increased, the material is repeatedly stirred and heated through the stirring blades, and the material is heated through the tank body interlayer, so that the drying speed of the material in the tank is remarkably accelerated, and the energy consumption is remarkably saved.

The drying tank consists of a lower middle slotting body 65 and an upper middle slotting body 66, wherein the lower middle slotting body is fixedly and hermetically connected with the upper middle slotting body through a sealing ring and a fixing bolt, the lower middle slotting body is provided with a hollow inner cavity, an electric heating device and a heat conducting medium are arranged in the hollow inner cavity, the electric heating device is controlled by a control system, and the heat conducting medium is communicated with a waste heat recovery device so as to achieve the effects of convenient installation and maintenance.

According to the invention, the circumference of the end face of the lower middle slotting body 65 can be provided with a sealing clamping groove, and the sealing ring is positioned through the sealing clamping groove so as to achieve the effect of quick installation.

The sorting cylinder consists of an upper middle-opening cylinder 67 and a lower middle-opening cylinder 68, wherein the upper middle-opening cylinder 67 is fixedly and hermetically connected with the lower middle-opening cylinder through a rubber sealing ring and a fixing bolt so as to achieve the effects of convenient installation and maintenance.

According to the invention, the overflow port can be arranged on the vacuum pump circulating water tank 21, and the vacuum pump circulating water tank 21 is communicated with the oil-water separation device through the overflow port, so that when water in the vacuum pump circulating water tank 21 reaches a set water level line, the water flows into the oil-water separation device 3 through the overflow port, and no odor and peculiar smell gas is discharged in the whole treatment process.

The waste heat recovery device 7 comprises a first refrigerating unit 56 and a second refrigerating unit 57, wherein the refrigerating unit comprises a compressor 58, a condenser 59, an expansion valve 60 and a surface cooler 61, a steam outlet of the drying tank 11 is sequentially connected with the surface cooler 61 of the first refrigerating unit 56 and the surface cooler 61 of the second refrigerating unit 57 through a steam filter 30 and a vacuum pump 9, so that the waste heat recovery process is carried out under the pressure of-0.081-0.099 MPa, and the condenser 59 of the second refrigerating unit 57 is connected with a flushing water tank 19 through a water pump; the condenser 59 of the first refrigerating unit 56 can be arranged in the interlayer, the condenser 59 can be arranged outside the drying tank and communicated with the condenser 59 through the heat exchange circulating pipeline, so that the heat energy of steam in the drying tank 11 is absorbed through the waste heat recovery device 7, the heat energy of the steam is transferred into the interlayer of the drying tank through the condenser 59 on one hand, materials in the drying tank 11 are dried, and on the other hand, the heat energy is transferred into the flushing tank, and kitchen waste is flushed through the salt and fat reducing device 1, so that the waste heat recovery is realized, the energy consumption is obviously saved, and the heating time is shortened.

The oil-water separation device comprises a case 71, a case cover plate 72, a control device 73 and a sewage draining device 74, wherein the side wall of the case 71 is communicated with a sewage inlet pipe 75, the case 71 is in sealing connection with the case cover plate 72, a condensation oil extraction mechanism 76, an oil scraping mechanism 77, an oil removal mechanism 78 and a refrigerating and heating system 79 are arranged on the case 71,

The condensation oil extraction mechanism 76 comprises a condensation plate 80 and a condensation plate lifting device, wherein the condensation plate 80 is connected with the case cover plate 72 through the condensation plate lifting device, the condensation plate lifting device is driven by a control device,

the oil scraping mechanism comprises an oil scraping plate 81, a movable oil storage tank 82, an oil pushing plate 83, an oil pushing butt plate 84 and an oil scraping plate moving device, wherein the oil scraping plate 81 is positioned in a case 71, the lower end of the oil scraping plate 81 is fixedly connected with the movable oil storage tank 82, two ends of the movable oil storage tank 82 are connected with the oil scraping plate moving devices fixed at two sides in the case 71 so as to facilitate the reciprocating horizontal movement of the oil scraping plate 81 driven by the oil scraping plate moving device, the cooled oil at the lower end of a condensing plate 80 is scraped, the oil scraped by the oil scraping plate 81 is collected by the movable oil storage tank 82, the oil pushing plate 83 is slidably connected with the movable oil storage tank 82, one side of the oil pushing plate 83 is provided with the oil pushing butt plate 84, the oil pushing butt plate 84 is provided with a butt bump or a butt groove,

the oil removing mechanism 78 comprises an oil removing groove 85, an oil removing plate 86, an oil removing connecting plate 87, an oil removing driving device and an oil receiving barrel 88, wherein the oil removing groove 85 is fixed on the outer side of the chassis 71, the oil removing plate is arranged in the oil removing groove 85 in a sliding mode, an oil outlet is arranged on the lower bottom surface of the oil removing groove 85, the oil removing driving device is arranged on the oil removing groove 85, the oil removing plate 86 is driven by the oil removing driving device, the oil removing driving device is driven by the control device, one side of the oil removing plate 86 is provided with the oil removing connecting plate 87, the other side of the oil removing connecting plate 87 is provided with a connecting groove or a connecting lug so as to be beneficial to the connecting groove or the connecting lug with the oil removing connecting plate 87, when the oil removing mechanism moves to one side of the oil removing mechanism through the oil removing plate moving device, the oil pushing abutting plate 84 is in butt joint with the oil removing connecting plate 87, the lower end of the oil outlet is connected with the oil receiving barrel 88 through the oil outlet pipe, the oil pushing abutting plate 84 is driven by the control device,

The sewage disposal device comprises a sewage pump 89 and a sewage drainage tank 90, wherein a liquid inlet of the sewage pump 89 is communicated with the bottom of the chassis 71, a liquid outlet is communicated with a sewage receiving tank through a sewage pipe 91, and the sewage pump 89 is driven by a control device;

the refrigerating and heating system adopts a heat pump system, and comprises a compressor, a water-cooled condenser 92, a cold plate evaporator 93, an electronic expansion valve, a filter and an oil removing condenser 94, wherein the water-cooled condenser 92 is arranged at the bottom of a case 71, the cold plate evaporator 93 is arranged on a condensing plate 80 so as to be beneficial to cooling the condensing plate, the lower end surface of the condensing plate 80 is instantly solidified into grease by liquid oil, the oil removing condenser 94 is arranged at the bottom of an oil removing groove 15 so as to be beneficial to heating the oil entering the oil removing groove 85, the grease in the oil removing groove 85 is melted into fluid, the exhaust ports of the compressor are respectively connected to one ends of the water-cooled condenser and the oil removing condenser by pipelines, the other ends of the water-cooled condenser 92 and the oil removing condenser 94 are connected to one end of the throttle cold plate evaporator 93 by the pipelines after being connected to the throttle device by pipelines, the other end of the cold plate evaporator 93 is finally connected to the air suction port of the compressor through a pipeline, the refrigerating and heating system is controlled by a control device, when the invention works, liquid with oil, water and slag is injected into the chassis 71 through the connecting pipe, the control device starts the refrigerating and heating system and the condensation oil lifting mechanism, the condensation plate lifting device drives the condensation plate to move downwards, when the lower end surface of the condensation plate contacts the liquid surface, the condensation plate lifting device stops moving downwards, the lower end surface of the condensation plate 80 cools the contacted liquid surface into grease under the action of the cold plate evaporator to adhere to the condensation plate 80, then the condensation plate 80 is driven by the condensation plate lifting device to lift to the upper end of the oil scraping plate 81 of the oil scraping mechanism after the grease is carried by the condensation plate 80 to leave the liquid level, the control device instructs the oil scraping plate moving device in the oil scraping mechanism to act, the oil scraping plate 81 is driven to move downwards along the condensation plate 80 to move linearly, the oil condensed at the lower end of the condensation plate 80 is scraped into a movable oil storage tank, in the oil scraping process, an oil removing connecting plate 87 in the movable oil removing tank 12 is positioned at one end of the movable oil removing tank 12, after the oil scraping plate 81 scrapes all the oil on the lower end face of the condensation plate 80 and is guided into the movable oil removing tank 85 through the oil scraping plate 81, the oil scraping plate moving device continues to drive the oil scraping plate 81 to move until the oil scraping plate is contacted with one side of the oil removing tank 85, at the moment, the oil removing connecting plate 87 in the movable oil storage tank 82 is spliced with an oil pushing butt plate 84, and the oil removing driving device is instructed to act to drive the oil pushing butt plate 84 to slide along the oil removing tank 85 and drive the oil removing connecting plate 87 to move, so that the oil in the oil removing tank 85 is pushed into the oil removing tank, and the oil is quickly melted into the oil through the bottom of the oil removing tank 85 and the oil outlet pipe to flow into the oil receiving tank 88, the actions are repeatedly repeated until the oil and water separation on the surface of the oil can be separated from the oil through the oil outlet hole and the oil outlet pipe, and the oil is different in the condensation point and the water condensation point, the oil and the water condensation point can be separated from the oil and the water can reach the high purity and the high efficiency and the water.

According to the invention, the slag-separating mesh screen 95 can be arranged in the case 71, and the periphery of the slag-separating mesh screen 95 is connected with the inner wall of the case 71 in a sealing way, so that the purpose of preventing large particulate matters in oil water from rising to the upper part of the slag-separating mesh screen 95 is achieved, and the purity of oil water separation is further purified.

The sewage lifting back flushing mechanism can be arranged in the sewage disposal device at one side of the machine case 71 and comprises a back flushing pipe 96 and a filtering valve, one end of the back flushing pipe 96 extends below a slag separating mesh screen 95 in the machine case 71 through the side wall of the machine case 71, the other end of the back flushing pipe 96 is connected with the sewage disposal pipe 91, the filtering valve is arranged on the back flushing pipe 96 so as to facilitate filtering liquid entering the back flushing pipe 96, and a plurality of small through holes distributed in a staggered mode are formed in the side wall of the back flushing pipe 96, so that high-pressure water sprayed out of the small through holes in the back flushing pipe 96 during sewage lifting back flushing pipe 71 backflows sludge, sundry slag and the like at the bottom of the machine case 71 to the sewage drainage box 90 and is discharged by the sewage pump 89, and meanwhile, blocking of the slag separating mesh screen is avoided through high-pressure suction of the sewage pump 89.

According to the invention, the sewage draining pipeline 97 can be arranged on one side of the sewage draining box 90, and the sewage draining valve 98 is arranged on the sewage draining pipeline 97, so that when the sewage pump cannot work normally, the sewage draining valve 98 can be opened, so that sewage in the case 71 is drained through the sewage draining pipeline 97, and the normal operation of oil-liquid separation in the case is ensured.

The invention can be provided with an overflow port at the upper part of the side wall of the case 71, the overflow port is communicated with the sewage evacuation pipeline 97 through an overflow pipe 99, so that the invention always keeps normal operation in the separation process, and the overflow pipe 99 is provided with a one-way valve 100, so that sewage is prevented from flowing back into the case through the overflow port when the sewage is lifted.

According to the invention, the bottom surface of the chassis 71 adopts the inclined chassis bottom plate 101, and one end far away from the sewage pump 89 is gradually inclined towards one end of the sewage pump 89, so that sundries isolated by the slag separation screen 25 flow into the near end of the sewage pump 89 along the inclined chassis bottom plate 101 and are pumped out by the sewage pump 89, and the sewage discharging capability is further improved.

According to the oil removal tank 85, the bottom of the oil removal tank 85 is inclined, and the oil outlet is positioned at the lowest point of the bottom of the oil removal tank 85, so that oil recovered to a liquid state automatically flows into the oil receiving barrel through the oil outlet, the effect of automatic collection is achieved, and the oil filtering device is arranged in the oil outlet, so that the cleanliness and purity of oil products are further improved.

The filtering device of the invention can adopt the prior art such as filter cotton and the like, and the description is omitted.

The invention relates to a condensing plate lifting device, which comprises a cold plate speed reducer 102, a cold plate lead screw 103 and a cold plate guide rod 104, wherein the cold plate speed reducer 102 is arranged in the center of a case cover plate 72 at the upper end of a case 71, guide perforations are respectively arranged at two sides of the case cover plate, the cold plate speed reducer 102 is controlled by a control device 73, the lower end of the cold plate lead screw 103 is fixedly connected with a condensing plate 80, the upper end of the cold plate lead screw 103 is connected with an output shaft of the cold plate speed reducer 102, and the lower end of the cold plate guide rod 104 is fixedly connected with the condensing plate 80 after passing through the guide perforations so as to facilitate the cold plate speed reducer 102 to drive the condensing plate 80 to move up and down along the guide perforations under the action of the cold plate guide rod 104.

In the use process, the condensing plate lifting device comprises a cold plate cylinder and a cold plate guide rod, wherein the cold plate cylinder is arranged in the center of a case cover plate at the upper end of the case, guide holes are respectively formed in two sides of the case cover plate, the cold plate cylinder is controlled by the control device, the lower end of a telescopic rod of the cold plate cylinder is fixedly connected with the condensing plate, and the lower end of the cold plate guide rod is fixedly connected with the condensing plate after passing through the guide holes.

The upper end of the case cover plate 72 can be provided with an upper cover plate 105 in a sealing way, and the periphery of the upper cover plate 105 is connected with the case 71 in a sealing way so as to prevent the odor from being emitted into the air to form secondary pollution.

The invention discloses an oil scraping plate moving device, which consists of an oil scraping speed reducer 106, a moving screw rod 107, a guide slideway 108, a sliding block 109 and a moving nut 110, wherein the moving screw rod 107 and the guide slideway 108 are respectively arranged in a case 71 at two sides of a condensing plate 80, one end of the moving screw rod 107 is fixedly connected with the case 71 through a bearing and a bearing seat, the other end of the moving screw rod 107 is fixedly connected with an output shaft of the oil scraping speed reducer 106 fixed on the case 71, the moving screw rod 107 is in threaded connection with the moving nut 110, two ends of the guide slideway 108 are respectively fixedly connected with the case 71, the sliding block 109 is slidingly connected on the guide slideway 108, one end of a moving oil storage tank 82 is fixedly connected with the moving nut 110, the other end of the moving oil storage tank 82 is fixedly connected with the sliding block 109, and the oil scraping speed reducer 106 is controlled by a control device.

The oil removal driving device can be composed of an oil removal speed reducer 111 and an oil removal lead screw 112, wherein the oil removal lead screw 112 is arranged in an oil removal groove 85, one end of the oil removal lead screw 112 is fixedly connected with the oil removal groove through a bearing and a bearing seat, the other end of the oil removal lead screw 112 is fixedly connected with an output shaft of the oil removal speed reducer 111 fixed at one end of the oil removal groove 85, the oil removal lead screw 112 is in threaded connection with an oil pushing butt joint plate 84, the oil removal speed reducer 111 is driven by a control device so as to facilitate driving the oil removal lead screw 112 to rotate through the oil removal speed reducer 111, and the oil pushing butt joint plate 84 is driven to linearly move along the side wall of the oil removal groove 85, so that oil flowing into the oil removal groove 85 from a movable oil storage groove 82 is pushed into an oil receiving barrel 88.

The oil removing driving device can also be composed of an oil removing cylinder and an oil pushing butt joint plate, wherein the oil pushing cylinder is fixed at one end of the oil removing groove, one end of a telescopic rod of the oil removing cylinder is fixedly connected with the oil pushing butt joint plate in the oil removing groove, and the oil removing cylinder is driven by the control device so as to facilitate the oil flowing into the oil removing groove from the oil storage groove to be pushed into the oil receiving barrel by driving the oil pushing butt joint plate to linearly move along the side wall of the oil removing groove through the oil removing cylinder.

One end of the upper cover plate 105 is hinged with the case 71 through a hinge, and two sides of the upper cover plate are respectively connected with the case through a gas spring 114, so that the effect of conveniently driving the condensing plate to be opened is achieved.

The control device comprises a PLC controller, a control panel, a cold plate temperature sensor, a high liquid level sensor, a low liquid level sensor, a condensing plate upper limit sensor, an oil scraping plate right position sensor, a sewage temperature sensor, an oil removing plate front position sensor and an oil removing plate rear position sensor, wherein the cold plate temperature sensor, the high liquid level sensor, the low liquid level sensor, the upper limit sensor, the oil scraping plate left position sensor, the oil scraping plate right position sensor, the sewage temperature sensor, the oil removing plate front position sensor and the oil removing plate rear position sensor are respectively connected with the PLC controller, the PLC controller is connected with the control panel,

the condensing plate is provided with a cold plate temperature sensor, so that the cold plate temperature sensor controls the condensing temperature of the cold plate evaporator and uploads the condensing temperature to the PLC;

the high liquid level sensor and the low liquid level sensor are arranged in the case, the upper limit liquid level and the lower limit liquid level of liquid in the case can be detected through the high liquid level sensor and the low liquid level sensor at the same time, the low liquid level sensor is used for controlling the performability of the descending oil extraction of the condensing plate, the high liquid level sensor is used for controlling the condensing plate to stop the ascending oil scraping mechanism to act, and information is uploaded in the PLC;

The upper limit sensor of the condensing plate is arranged on the case cover plate, the upper limit sensor of the condensing plate is used for controlling the upper limit of the condensing plate, and information is uploaded to the PLC;

the left side of the chassis is provided with a left oil scraping plate position sensor, the right side of the chassis is provided with a right oil scraping plate position sensor, the left oil scraping stroke and the right oil scraping stroke of the oil scraping plate are controlled through the left oil scraping plate position sensor and the right oil scraping plate position sensor, and information is uploaded in the PLC;

the bottom of the case is provided with a sewage temperature sensor, the temperature of the oil sewage in the case is controlled by the sewage temperature sensor so as to control the executable of the descending oil extraction of the condensing plate, and the information is uploaded to the PLC;

the front end of the oil removal groove is provided with an oil pushing plate front position sensor, the rear end of the oil removal groove is provided with an oil pushing plate rear position sensor, the front and rear movement stroke of the oil removal plate is controlled through the oil removal plate front position sensor and the oil removal plate rear position sensor, and information is uploaded in the PLC.

When the automatic treatment is carried out on materials, the PLC instructs the hopper electric valve to open, the sealing cover is opened, meanwhile, the flashboard driving motor is started to act, the flashboard is driven to seal the discharge hole, then the material is stopped, and meanwhile, the positive and negative rotation motor is started to rotate reversely, so that shaftless screws crush and squeeze kitchen wastes which fall into the feeding hopper, meanwhile, the water pump in the salt and fat reducing device is started, the feeding hopper wall is sprayed with water through the flushing pipe, oil salt adhered to the feeding hopper wall is timely removed, the salt and fat reducing treatment is carried out on the materials which enter the feeding hopper, oil liquid discharged after the material is wrung and sprayed is collected through the liquid collecting groove and then discharged into the oil-water separating device through the liquid discharging pipe, when the kitchen wastes are wrung and extruded, the PLC instructs the positive and negative rotation motor to rotate positively, the separation motor rotates positively and negatively, and downwards, the conveying motor rotates positively, the flashboard driving motor drives the flashboard to move upwards, the discharging hole is opened, the forward and backward rotating motor drives the shaftless spiral to rotate, the twisted and extruded materials are pushed into the sorting cylinder through the discharging hole, when the materials enter the sorting cylinder, under the rotation action of the separating shaft, the long and thin materials such as a knife, a fork, chopsticks and the like are led out through the separating blades, other paste materials and hard materials such as bones and the like collide with the filter screen under the centrifugal action of the separating shaft and the centrifugal action in the moment, the smashed materials and the paste materials enter the flow guiding cavity through the filter screen, the flow guiding of the right-handed guide blade and the cooperation of the left-handed baffle are blocked, the materials are quickly pushed into the feeding hole of the drying groove through the discharging hole under the rotation action of the conveying shaft by the connecting material guiding plate, the PLC controller opens the electric ball valve, the materials enter the drying groove, and then the electric ball valve is closed,

The PLC controller instructs the stirring motor to act so as to drive the stirring shaft in the drying tank to stir and dry materials, in the drying process, the PLC controller instructs the electric heating element of the interlayer of the drying tank to electrically heat, when the temperature in the drying tank rises to 80 ℃, the electric heating is stopped, the PLC controller starts the vacuum pump to start vacuumizing the drying tank, when the vacuum in the drying tank reaches-0.06 MPa, the compressor is stopped with the heat belt, the compressor starts to enter a drying stage, meanwhile, the PLC controller instructs the waste heat recovery device 7 to work, after the waste heat recovery device 7 exchanges heat with steam generated in the drying process of the materials in the drying device 5, the heat of the steam is condensed to form hot water of 50-120 ℃ by the waste heat recovery device, wherein the hot water of 50-120 ℃ is transmitted into the interlayer in the drying tank and the hollow structure of the stirring shaft, the materials in the drying tank are reheated by the drying tank and the stirring shaft, the other part of the hot water is transmitted into the flushing water tank 19, and the hot water of 50-70 ℃ is flushed by the salt degreasing device 1; in the heating process, the helical blades on the stirring shaft fully stir the pasty kitchen waste, so that the influence on the drying quality caused by uneven stirring of the kitchen waste in the drying tank is avoided, the pressure in the drying tank is always kept at-0.081 to-0.099 MPa in the drying process, the boiling point in the drying tank can be boiled at 50-65 ℃ without heating to 100 ℃, the drying speed of the material in the tank is obviously accelerated, the drying time is shortened, and the energy consumption is obviously saved;

When the temperature of an interlayer temperature sensor of the interlayer of the drying groove reaches the set temperature of 90-110 ℃, the PLC controller instructs the stirring motor to stop, the waste heat recovery device stops working, and when the temperature of the interlayer temperature sensor senses that the temperature is reduced to the set temperature, the PLC controller instructs the alarm to make a sound to prompt discharging.

When the sewage temperature sensor in the machine box senses that the sewage temperature reaches the appointed temperature, the appointed temperature is higher than the freezing point of water and lower than the freezing point of oil, the PLC controller instructs the cold plate speed reducer to drive the cold plate to move downwards to extract oil, when the low liquid level sensor senses that the cold plate moves downwards to the appointed liquid level, the PLC controller instructs the cold plate speed reducer to drive the cold plate to move downwards for a distance and keep until the cold plate temperature sensor on the cold plate gives a temperature signal reaching the oil extraction effect, the PLC controller controls the cold plate speed reducer to drive the cold plate to move upwards, when the oil scraping plate upper limit position sensor gives a signal reaching the oil scraping position, the oil scraping plate stops moving,

The PLC controller controls the oil scraping speed reducer to drive the oil scraping screw rod to drive the oil scraping plate to scrape oil along the bottom surface of the condensing plate in the case, when the oil scraping plate moves to the left end of the case, the left position sensor of the oil scraping plate is conducted and gives out a signal, the PLC controller instructs the oil scraping speed reducer to drive the oil scraping screw rod to stop acting, at the moment, the oil pushing butt plate is in butt joint with the oil removing connecting plate in the oil removing groove, the PLC controller instructs the oil removing mechanism to act to drive the oil removing plate to move forwards along the inner wall of the oil removing groove, the oil pushing butt plate drives the oil pushing plate to move through the oil removing connecting plate, the oil pushing butt plate drives the oil pushing plate to slide along the side wall of the movable oil storing groove to push the oil in the movable oil storing groove into the oil removing groove, the oil contacting with the movable oil storing groove becomes oil after the oil enters the movable oil storing groove due to the fact that the temperature in the movable oil storing groove is higher than the solidifying point of the oil, therefore the oil can not adhere in the oil storing groove because of the oil becomes solidifying state and can not be pushed out, the oil pushed into the oil removing groove is quickly formed into the oil under the heating effect of the water cooling condenser, and flows into the oil receiving groove through the oil outlet hole,

when the oil removing plate runs to the front end of the oil removing groove, the position sensor before the oil removing plate gives out a signal, the PLC controller controls the oil removing speed reducer to drive the oil removing screw rod to stop acting, oil removing is completed, the PLC controller controls the oil removing speed reducer to drive the oil removing screw rod to rotate reversely, when the oil removing plate runs to the rear end of the oil removing groove, the position sensor after the oil removing plate gives out a signal, and the PLC controller controls the oil removing speed reducer to drive the oil removing screw rod to stop acting, and the next oil removing operation is waited.

In the deoiling process, oil in the water passes through from separating the sediment mesh screen and floats to sewage surface, and granular mud, miscellaneous sediment etc. in the sewage separate the sediment mesh screen through separating sediment mesh screen and keep apart below separating sediment mesh screen, drain away by the sewage pump when waiting that sewage promotes, are favorable to guaranteeing the cleanliness and the high purity of oil.

When the dirt at the bottom of the slag separation mesh screen is accumulated to a certain extent and granular sludge or miscellaneous slag is required to be lifted, the PLC controller instructs sewage to lift the sewage pump in the back flushing device, and when the sewage is lifted, the small through holes on the back flushing pipe spray high-pressure water to back flush the sludge miscellaneous slag at the bottom of the machine case to the sewage drainage tank and discharge the sewage into the dirt receiving tank by the sewage pump, and meanwhile, the blocking of the slag separation mesh screen is avoided through the high-pressure suction of the sewage pump. In the sewage disposal process, the overflow pipe is provided with the one-way valve, so that sewage can be prevented from flowing back into the machine case through the overflow port when the sewage is lifted.

Claims

1. The kitchen waste treatment device comprises a solid-liquid separation device, an oil-water separation device, an automatic sorting device, a drying device and a control system, wherein the drying device comprises a drying tank, a stirring shaft and a stirring motor, the stirring shaft is provided with stirring blades, two ends of the stirring shaft are fixedly connected with the drying tank through a bearing and a bearing seat respectively, the stirring shaft is connected with the stirring motor, a heating element is arranged in an interlayer between an inner layer and an outer layer of the drying tank, a temperature sensor is arranged on the outer layer, a discharge hole is arranged at the lower part of the drying tank, a discharge sealing door is arranged on the discharge hole, the kitchen waste treatment device is characterized by further comprising an electric ball valve, a vacuum pump and a waste heat recovery device, the discharge hole of the automatic sorting device is connected with a feed inlet of the drying tank of the drying device through the electric ball valve, the steam outlet of the drying tank is connected with the vacuum pump through the waste heat recovery device, the automatic sorting device comprises a sorting cylinder, a cover plate, a crushing knife, a separating shaft, separating blades, a filter screen, a separating motor and a material flow guiding device, wherein the upper end of the sorting cylinder is connected with the cover plate, the filter screen at the bottom of the sorting cylinder is formed by sequentially connecting a hole-free discharging section at the inlet end and a hole-free discharging section connected with the hole-free discharging section, a flow guiding cavity is arranged at the lower part of the filter screen, a flushing water collecting tank is arranged at one side of the lower end surface of the flow guiding cavity, a discharging opening is arranged at the other side of the lower end surface of the flow guiding cavity, a material flow guiding device is arranged in the flow guiding cavity, the flushing water collecting tank is isolated from the flow guiding cavity through a filtrate network, the bottom of the flushing water collecting tank is inclined and is communicated with the oil-water separating device, the discharging opening is communicated with a feeding opening of the drying tank, the material flow guiding device comprises a conveying shaft and a conveying speed reducer, the conveying shaft is fixed on the material guiding cavity through a bearing, the conveying shaft is driven by a conveying speed reducer, the conveying speed reducer is controlled by a control system, a right-handed guide blade, a connecting material guiding plate and a left-handed baffle are sequentially arranged on the conveying shaft from left to right, the right-handed guide blade is spirally wound along the axial direction of the conveying shaft, the connecting material guiding plate is axially fixed on the conveying shaft, one end of the connecting material guiding plate is fixedly connected with the right-handed guide blade, the other end of the connecting material guiding plate is fixedly connected with the left-handed baffle, the right-handed guide blade corresponds to a flushing water collecting tank, the connecting guide plate corresponds to a discharging opening, the conveying shaft adopts a hollow water injection cavity, a flushing hole is arranged on the side wall of the conveying shaft, one end of the conveying shaft is communicated with a flushing pump in a flushing water tank through a rotary joint, the flushing pump is connected with the control system, and the water injection cavity is communicated with the flushing hole, the solid-liquid separation device comprises a feeding hopper, a forward and reverse rotating motor and a shaftless spiral, wherein the shaftless spiral is arranged in the feeding hopper, a liquid collecting tank is arranged at the bottom of the feeding hopper, a sealing cover is arranged at the upper end of the feeding hopper, a filter screen plate is arranged between the feeding hopper and the liquid collecting tank, a sealing device is arranged on a discharge hole of the feeding hopper, the bottom surface of the liquid collecting tank is inclined, the liquid collecting tank is communicated with the oil-water separation device through a liquid conveying pipeline, one end of the shaftless spiral is fixedly connected with the forward and reverse rotating motor, the other end of the shaftless spiral corresponds to the discharge hole arranged on the side wall of the feeding hopper, the forward and reverse rotating motor is connected with a control system, a salt and fat removal device is arranged on the solid-liquid separation device, the salt and fat removal device comprises a flushing pipe, a flushing electromagnetic valve, a flushing pump and a flushing water tank, the flushing pipe is fixed on the inner side wall of the feeding hopper, the flushing pipe is connected with the flushing pump through the electromagnetic valve, and the flushing pump is connected with the flushing water tank, the flushing electromagnetic valve and the flushing pump are respectively controlled by a control system, the sealing device comprises a gate and a power driving device, the power driving device consists of a screw rod, a screw seat and a gate driving motor, the gate penetrates through a gate perforation to be matched and sealed with the end face of a discharge hole, the gate driving motor is connected with the screw rod, the screw seat is connected with the gate, the gate penetrates through the gate perforation to be matched and sealed with the end face of the discharge hole, a stirring shaft, a stirring rod and a spiral blade in the drying tank are respectively in a hollow communicated structure, one end of the stirring shaft is provided with a rotary joint, a water inlet pipe is arranged in an inner cavity of the stirring shaft, the inner walls of the water inlet pipe and the stirring shaft are provided with a backwater gap, one end of the water inlet pipe is connected with a water tank through the rotary joint, the other end of the water inlet pipe is closed, the side wall of the water inlet pipe penetrates through the cavity of the stirring rod and is communicated with the inner cavity of the spiral blade through a water distribution pipe, the spiral blade is provided with a water return hole, the vacuum pump circulating water tank is provided with an overflow port, the vacuum pump circulating water tank is communicated with the oil-water separation device through the overflow port, the waste heat recovery device comprises a first refrigerating unit and a second refrigerating unit, the refrigerating unit comprises a compressor, a condenser, an expansion valve and a surface cooler, the steam outlet of the drying tank is connected with the vacuum pump through a steam filter, the surface cooler of the first refrigerating unit and the surface cooler of the second refrigerating unit in sequence, the condenser is arranged outside the drying tank, when materials are automatically processed, the PLC controller instructs the hopper electric valve to open, the sealing cover is opened, meanwhile, the flashboard driving motor is started to act, the flashboard is driven to seal the discharge port, then the waste heat recovery device is stopped, and meanwhile, the positive and negative rotation motor is started to reversely rotate, so that shaftless screws crush and squeeze kitchen waste which falls into the feeding hopper, simultaneously, a water pump in the salt and lipid reducing device is started, water is sprayed to a feeding hopper wall through a flushing pipe, oil salt adhered to the feeding hopper wall is timely removed, salt and lipid reducing treatment is carried out on materials entering the feeding hopper, oil discharged after the materials are twisted and sprayed is discharged into an oil-water separation device through a liquid collecting tank after being collected through a liquid discharge pipe, when kitchen wastes are twisted and extruded, a PLC (programmable logic controller) controller instructs a forward and backward motor to rotate forward and backward, a separation motor rotates forward and backward, a flashboard driving motor drives a flashboard to move upwards, a discharge hole is opened, the forward and backward motor drives a shaftless spiral to rotate, the twisted and extruded materials are pushed into a sorting cylinder through the discharge hole, and when the materials enter the sorting cylinder, slender materials are led out through separation blades under the rotation action of a separation shaft, other pasty materials and hard materials are crushed by collision with a filter screen under the centrifugal action of a separation shaft and a separation blade in the moment, the crushed powder and paste enter a flow guide cavity through the filter screen, the crushed powder and paste are blocked by the cooperation of a flow guide of a right-handed guide blade and a left-handed baffle, the materials are quickly pushed into a feed inlet of a drying tank through a feed opening under the rotation action of a conveying shaft by connecting a material guide plate, a PLC (programmable logic controller) controller opens an electric ball valve, the materials enter the drying tank, then the electric ball valve is closed, after sorting is finished, flushing water is injected into a water injection cavity of the conveying shaft, the filter screen, a filtrate network and the flow guide cavity are automatically flushed through flushing holes, flushing sewage flows down to a flushing liquid receiving tank through the filtrate network and flows into an oil-water separation device through a pipeline,

Simultaneously, the PLC controller instructs the stirring motor to act so as to drive the stirring shaft in the drying tank to stir and dry materials, in the drying process, the PLC controller instructs the electric heating element of the interlayer of the drying tank to electrically heat, when the temperature in the drying tank rises to 80 ℃, the electric heating is stopped, the PLC controller starts the vacuum pump to start vacuumizing the drying tank, when the vacuum degree in the drying tank reaches-0.06 MPa, the compressor is stopped along with the heat belt, the compressor starts to enter a drying stage, meanwhile, the PLC controller instructs the waste heat recovery device to work, the waste heat recovery device carries out heat exchange on steam generated in the drying process of the materials in the drying device, the steam is condensed into liquid, the heat of the steam is recovered by the waste heat recovery device to generate 50-120 ℃, one part of the hot water is transmitted into the interlayer and the hollow structure of the stirring shaft in the drying tank, the other part of the hot water is transmitted into the flushing tank through the stirring shaft and the stirring blade in the drying tank to reheat the materials in the drying tank, and the other part of the hot water in the flushing tank is subjected to flushing of 50-70 ℃ of kitchen waste through the salt and fat removal device; in the heating process, the helical blades on the stirring shaft fully stir the pasty kitchen waste, and the pressure in the drying tank body is kept at minus 0.081 to minus 0.099MPa all the time in the drying process, so that the boiling point in the drying tank can be boiled at 50-65 ℃;

2. A kitchen waste treatment device according to claim 1, wherein the shaftless screw end is in the range of 2-10mm from the ram.

3. A kitchen waste treatment device according to claim 1, wherein the lower end of the shutter is provided with a cutting edge.

4. A kitchen waste treatment device according to claim 1, 2 or 3, wherein the mesh size of the filtrate network is 2-10mm.

5. The kitchen waste treatment device according to claim 4, wherein the control system comprises a PLC controller, a touch screen with a human-computer interface, an alarm and a monitoring sensor, wherein the monitoring sensor, the alarm and the touch screen are respectively connected with the PLC controller, the monitoring sensor comprises an interlayer temperature sensor, a tank pressure sensor, a clamp pressure sensor, an interlayer water level sensor, an electric heating pipe temperature sensor, a circulating water tank liquid level sensor, a compressor high pressure sensor and a compressor low pressure sensor, the interlayer temperature sensor, the clamp pressure sensor and the interlayer water level sensor are respectively arranged in an interlayer of the tank, the tank pressure sensor is arranged in an inner cavity of the tank, the electric heating pipe temperature sensor is arranged at the tail end of the electric heating pipe, the circulating water tank temperature sensor and the circulating water tank liquid level sensor are respectively arranged in the circulating water tank, the compressor high pressure sensor is arranged on an air inlet pipe of the compressor, and the compressor low pressure sensor is arranged on an air outlet pipe of the compressor.

6. The kitchen waste treatment device according to claim 4, wherein an expansion valve control board is provided in the PLC controller, and the expansion valve is connected to the PLC controller via the expansion valve control board.

7. The kitchen waste treatment device according to claim 6, wherein a vacuum relief valve is provided on a pipeline between the steam filter and the surface cooler, and the vacuum relief valve is connected with the PLC controller.

8. A kitchen waste treatment device according to claim 1 or 2 or 3 or 5 or 6 or 7, wherein a sealing cover is arranged at the upper end of the feeding hopper, the sealing cover is connected with the feeding hopper through a hopper electric valve, and the hopper electric valve is connected with a PLC controller.

9. The kitchen waste treatment device according to claim 8, wherein the PLC controller is provided with a bluetooth communication module, and the PLC controller is connected with a mobile phone and a computer terminal through the bluetooth communication module.

10. A kitchen waste treatment device according to claim 1 or 2 or 3 or 5 or 6 or 7 or 9, characterized in that the drying tank is composed of a lower middle tank body and an upper middle tank body, the lower middle tank body is fixedly and hermetically connected with the upper middle tank body through a sealing ring and a fixing bolt, the lower middle tank body is provided with a hollow inner cavity, an electric heating device and a heat conducting medium are arranged in the hollow inner cavity, the electric heating device is controlled by a control system, and the heat conducting medium is communicated with a waste heat recovery device.

11. The kitchen waste treatment device according to claim 10, wherein the circumference of the end face of the lower middle groove body is provided with a sealing clamping groove, and the sealing ring is positioned through the sealing clamping groove.

12. The kitchen waste treatment device according to claim 1 or 2 or 3 or 5 or 6 or 7 or 9 or 11, wherein the sorting cylinder comprises an upper middle-opening cylinder body and a lower middle-opening cylinder body, and the upper middle-opening cylinder body is fixedly and hermetically connected with the lower middle-opening cylinder body through a rubber sealing ring and a fixing bolt.

13. The kitchen waste treatment device according to claim 12, wherein the upper middle open cylinder body is provided with a sealing groove on the circumference of the end face, and the rubber sealing ring is positioned through the sealing groove.

14. A kitchen waste treatment device according to claim 1 or 2 or 3 or 5 or 6 or 7 or 9 or 11 or 13, characterized in that the oil-water separation device comprises a closed case, a case cover plate and a sewage draining device, the side wall of the case is communicated with a sewage inlet pipe, a condensing and oil extracting mechanism, an oil scraping mechanism, an oil removing mechanism and a refrigerating and heating system are arranged on the case,

the condensing oil extraction mechanism comprises a condensing plate and a condensing plate lifting device, the condensing plate is connected with a case cover plate through the condensing plate lifting device, the condensing plate lifting device is driven by a control device,

The oil scraping mechanism comprises an oil scraping plate, a movable oil storage tank, an oil pushing plate, an oil pushing butt plate and an oil scraping plate moving device, wherein the oil scraping plate is positioned in a case, the lower end of the oil scraping plate is fixedly connected with the movable oil storage tank, the two ends of the movable oil storage tank are connected with the oil scraping plate moving devices fixed on the two sides of the case, the oil pushing plate is slidably connected in the movable oil storage tank, one side of the oil pushing plate is provided with the oil pushing butt plate, the oil pushing butt plate is provided with a butt joint convex block or a butt joint groove,

the oil removing mechanism comprises an oil removing groove, an oil removing plate, an oil removing connecting plate, an oil removing driving device and an oil receiving barrel, wherein the oil removing groove is fixed on the outer side of the chassis, the oil removing plate is slidably arranged in the oil removing groove, an oil outlet is formed in the lower bottom surface of the oil removing groove, the oil removing groove is provided with the oil removing driving device, the oil removing plate is driven by the oil removing driving device, the oil removing driving device is driven by the control device, one side of the oil removing plate is provided with the oil removing connecting plate, the other side of the oil removing connecting plate is provided with a connecting groove or a connecting lug, when the oil removing mechanism moves to one side of the oil removing mechanism through the oil removing plate moving device, the oil pushing abutting plate is abutted with the oil removing connecting plate, the oil pushing abutting plate is driven by the oil removing driving device fixed on the oil removing groove, the lower end of the oil outlet is connected with the oil receiving barrel through the oil outlet pipe, the oil removing driving device is driven by the control device,

The sewage disposal device comprises a sewage pump and a sewage drainage tank, a liquid inlet of the sewage pump is communicated with the bottom of the case, a liquid outlet of the sewage pump is communicated with the sewage receiving tank through a sewage disposal pipe, and the sewage pump is driven by the control device.

15. A kitchen waste treatment device according to claim 14, wherein the refrigerating and heating system adopts a heat pump system, and comprises a compressor, a water-cooled condenser, a cold plate evaporator, an electronic expansion valve, a filter and an oil removal condenser, wherein the water-cooled condenser is arranged at the bottom of the case, the cold plate evaporator is arranged on a condensing plate, the oil removal condenser is arranged at the bottom of the oil removal plate, an exhaust port of the compressor is respectively connected to one ends of the water-cooled condenser and the oil removal condenser through pipelines, the other ends of the water-cooled condenser and the oil removal condenser are connected to one ends of the cold plate evaporator through pipelines after being connected to a throttling device, the other ends of the cold plate evaporator are finally connected to an air suction port of the compressor through pipelines, and the refrigerating and heating system is controlled by the control device.

16. The kitchen waste treatment device according to claim 15, wherein a slag screen is provided in the housing, and the periphery of the slag screen is connected with the inner wall of the housing in a sealing manner.

17. The kitchen waste treatment device according to claim 16, wherein a sewage lifting backwash mechanism is arranged in the sewage disposal device on one side of the case and comprises a backwash pipe and a filter valve, one end of the backwash pipe extends below the slag separation mesh screen in the case through the side wall of the case, the other end of the backwash pipe is connected with the sewage disposal pipe, and the filter valve is arranged on the backwash pipe.

18. A kitchen waste treatment device according to claim 15, 16 or 17, wherein a sewage drain pipe is provided on one side of the sewage drain tank, and a sewage drain valve is provided on the sewage drain pipe.

19. A kitchen waste treatment device according to claim 18, wherein the upper part of the side wall of the housing is provided with an overflow port, and the overflow port is communicated with the sewage evacuation pipe through an overflow pipe.

20. A kitchen waste disposal device as claimed in claim 15 or 16 or 17 or 19, wherein the chassis floor employs a sloping chassis floor which slopes progressively from an end remote from the sewage pump to an end of the sewage pump.

21. The kitchen waste treatment device according to claim 14, wherein the bottom of the oil removal tank is inclined, the oil outlet is located at the lowest point of the bottom of the oil removal tank, and the oil filter is disposed in the oil outlet.

22. The kitchen waste treatment device according to claim 15, 16, 17, 19 or 21, wherein the cold plate lifting device comprises a cold plate speed reducer, a cold plate lead screw and a cold plate guide rod, the cold plate speed reducer is arranged in the center of a case cover plate at the upper end of the case, guide perforations are respectively arranged at two sides of the case cover plate, the cold plate speed reducer is controlled by the control device, the lower end of the cold plate lead screw is fixedly connected with the cold plate, the upper end of the cold plate lead screw is connected with an output shaft of the cold plate speed reducer, and the lower end of the cold plate guide rod is fixedly connected with the cold plate after passing through the guide perforations.

23. A kitchen waste treatment device according to claim 15, 16, 17, 19 or 21, wherein the cold plate lifting device comprises a cold plate cylinder and a cold plate guide rod, the cold plate cylinder is arranged in the center of a case cover plate at the upper end of the case, guide perforations are respectively arranged at two sides of the case cover plate, the cold plate cylinder is controlled by the control device, the lower end of a telescopic rod of the cold plate cylinder is fixedly connected with the cold plate, and the lower end of the cold plate guide rod is fixedly connected with the cold plate after passing through the guide perforations.

24. The kitchen waste treatment device of claim 23, wherein the upper end of the case cover plate is provided with an upper cover plate in a sealing manner, and the periphery of the upper cover plate is connected with the case in a sealing manner.

25. The kitchen waste treatment device according to claim 14, wherein the oil scraping plate moving device is composed of an oil scraping speed reducer, a moving screw rod, a guiding slideway, a sliding block and a moving nut, wherein the moving screw rod and the guiding slideway are respectively arranged in a case at two sides of the condensing plate, one end of the moving screw rod is fixedly connected with the case through a bearing and a bearing seat, the other end of the moving screw rod is fixedly connected with an output shaft of the oil scraping speed reducer fixed on the case, the moving screw rod is in threaded connection with the moving nut, two ends of the guiding slideway are respectively fixedly connected with the case, the sliding block is connected onto the guiding slideway in a sliding manner, one end of the moving oil storage tank is fixedly connected with the moving nut, the other end of the moving screw rod is fixedly connected with the sliding block, and the oil scraping speed reducer is controlled by the control device.

26. The kitchen waste treatment device according to claim 14, wherein the oil removal driving device comprises an oil removal speed reducer and an oil removal screw rod, the oil removal screw rod is arranged in the oil removal groove, one end of the oil removal screw rod is fixedly connected with the oil removal groove through a bearing and a bearing seat, the other end of the oil removal screw rod is fixedly connected with an output shaft of the oil removal speed reducer fixed at one end of the oil removal groove, the oil removal screw rod is in threaded connection with an oil pushing butt joint plate, and the oil removal speed reducer is driven by the control device.

27. The kitchen waste treatment device according to claim 14, wherein the oil removal driving device is composed of an oil removal cylinder and an oil pushing butt plate, the oil removal cylinder is fixed at one end of the oil removal tank, one end of a telescopic rod of the oil removal cylinder is fixedly connected with the oil pushing butt plate in the oil removal tank, and the oil removal cylinder is driven by the control device.

28. The kitchen waste treatment device as claimed in claim 24, wherein the upper cover plate is hinged to the housing at one end thereof via a hinge, and is connected to the housing at both sides thereof via gas springs.

29. A kitchen waste treatment device according to claim 25, 26 or 27, wherein the control device comprises a PLC controller, a control panel, a cold plate temperature sensor, a high liquid level sensor, a low liquid level sensor, a cold plate upper limit position sensor, a wiper plate right position sensor, a sewage temperature sensor, a wiper plate front position sensor and a wiper plate rear position sensor, wherein the cold plate temperature sensor, the high liquid level sensor, the low liquid level sensor, the upper limit position sensor, the wiper plate left position sensor, the wiper plate right position sensor, the sewage temperature sensor, the wiper plate front position sensor and the wiper plate rear position sensor are respectively connected with the PLC controller, the PLC controller is connected with the control panel, and the cold plate temperature sensor is arranged on the cold plate; a high liquid level sensor and a low liquid level sensor are arranged in the case; a condensing plate upper limit sensor is arranged on the case cover plate; the left side of the case is provided with a left position sensor of the oil scraping plate, and the right side of the case is provided with a right position sensor of the oil scraping plate; the bottom of the case is provided with a sewage temperature sensor; the front end of the oil removing groove is provided with an oil pushing plate front position sensor, and the rear end of the oil removing groove is provided with an oil pushing plate rear position sensor.