CN108246765B - Kitchen waste forage environment-friendly production method - Google Patents
Kitchen waste forage environment-friendly production method Download PDFInfo
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- CN108246765B CN108246765B CN201711493108.9A CN201711493108A CN108246765B CN 108246765 B CN108246765 B CN 108246765B CN 201711493108 A CN201711493108 A CN 201711493108A CN 108246765 B CN108246765 B CN 108246765B
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- 239000010806 kitchen waste Substances 0.000 title claims abstract description 128
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000004459 forage Substances 0.000 title claims description 14
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 238000000926 separation method Methods 0.000 claims abstract description 42
- 238000010564 aerobic fermentation Methods 0.000 claims abstract description 41
- 239000012535 impurity Substances 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 208000005156 Dehydration Diseases 0.000 claims abstract description 29
- 230000018044 dehydration Effects 0.000 claims abstract description 29
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 29
- 238000004537 pulping Methods 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 239000003674 animal food additive Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 51
- 238000002347 injection Methods 0.000 claims description 44
- 239000007924 injection Substances 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 239000007789 gas Substances 0.000 claims description 32
- 239000002912 waste gas Substances 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 26
- 238000009833 condensation Methods 0.000 claims description 17
- 230000005494 condensation Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 235000019476 oil-water mixture Nutrition 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000002068 microbial inoculum Substances 0.000 abstract description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 2
- 150000001413 amino acids Chemical class 0.000 abstract description 2
- 239000011575 calcium Substances 0.000 abstract description 2
- 229910052791 calcium Inorganic materials 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 2
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 239000011591 potassium Substances 0.000 abstract description 2
- 229910052700 potassium Inorganic materials 0.000 abstract description 2
- 239000011573 trace mineral Substances 0.000 abstract description 2
- 235000013619 trace mineral Nutrition 0.000 abstract description 2
- 239000011782 vitamin Substances 0.000 abstract description 2
- 229940088594 vitamin Drugs 0.000 abstract description 2
- 229930003231 vitamin Natural products 0.000 abstract description 2
- 235000013343 vitamin Nutrition 0.000 abstract description 2
- 239000011701 zinc Substances 0.000 abstract description 2
- 229910052725 zinc Inorganic materials 0.000 abstract description 2
- 229930192334 Auxin Natural products 0.000 abstract 1
- 239000002363 auxin Substances 0.000 abstract 1
- SEOVTRFCIGRIMH-UHFFFAOYSA-N indole-3-acetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CNC2=C1 SEOVTRFCIGRIMH-UHFFFAOYSA-N 0.000 abstract 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 102000018997 Growth Hormone Human genes 0.000 description 1
- 108010051696 Growth Hormone Proteins 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 239000000122 growth hormone Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The environment-friendly production method of the kitchen waste feed comprises the following steps: (1) mechanically removing impurities by an automatic sorting machine; (2) the crushing pulping machine is used for crushing and pulping the sorted kitchen waste; (3) sending the slurry into a pretreatment solid-liquid separation device for solid-liquid separation; (4) the solid kitchen waste separated out enters a steam heating turning dehydration device for dehydration treatment; (5) aerobic fermentation is carried out in the drum-type aerobic fermentation device; (6) crushing and removing flexible impurities to prepare the feed additive ice for storage. The solid obtained after solid-liquid separation is rich in organic matters, trace elements such as nitrogen, phosphorus, potassium, calcium, zinc, iron and manganese, and various activated organisms such as auxin, vitamins, organic matters and amino acids, and is dehydrated, aerobically fermented, crushed to obtain impurities and then fermented again to form a microbial inoculum to prepare the fermented feed additive, so that the kitchen waste is fully and reasonably recycled, and the occupation and pollution to environmental resources are reduced.
Description
Technical Field
The invention belongs to the technical field of garbage treatment, and particularly relates to a food waste forage environment-friendly production method.
Background
The main method for treating the kitchen waste in the prior art is as follows: firstly, the crushed materials are directly discharged through a sewer pipe. However, the method is only suitable for the condition of small amount of kitchen waste, and has the disadvantages of easily causing the blockage of drainage pipelines, increasing the burden of urban sewage discharge and causing secondary pollution. And secondly, directly burying. Although the method is simple to operate and convenient to treat, the method does not accord with the development concept of energy conservation, environmental protection and cyclic utilization, and waste of available resources is easily caused. The kitchen waste needs to be dehydrated again after solid-liquid separation, the turner is a device for dehydrating the kitchen waste, when the existing turner is in operation, the kitchen waste is extruded under the normal temperature and pressure state, the dehydration effect is poor, the solid kitchen waste discharged from the outlet of the turner still contains certain moisture (the moisture content is still high), more energy and time are consumed for drying (drying) treatment in the follow-up process, and the solid kitchen waste is not beneficial to being made into microbial inoculum for forage after fermentation operation. How to improve the existing kitchen waste treatment method becomes a technical problem which needs to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the kitchen waste forage environment-friendly production method which is good in production quality and high in efficiency and can improve the dehydration effect and reduce the water content of the kitchen waste.
In order to solve the technical problems, the invention adopts the following technical scheme: the production line adopted by the production method comprises an automatic kitchen waste sorting machine, a crushing pulping machine, a pretreatment solid-liquid separation device, a steam-introducing, warming, turning and dehydrating device, an air supply device, a drum-type aerobic fermentation device, a waste gas treatment device, a crushing impurity removal device and a storage tank;
the discharge port of the automatic kitchen waste sorting machine is connected with the feed port of the crushing pulping machine, the discharge port of the crushing pulping machine is connected with the feed port of the pretreatment solid-liquid separation device, the discharge port of the pretreatment solid-liquid separation device is connected with the feed port of the steam-feeding warming turning dehydration device, the air outlet of the air supply device is respectively connected with the air inlet of the steam-feeding warming turning dehydration device and the air inlet of the drum-type aerobic fermentation device, the discharge port of the steam-feeding warming turning dehydration device is connected with the feed port of the drum-type aerobic fermentation device, and the exhaust port of the pretreatment solid-liquid separation device, the exhaust port of the steam heating turning dehydration device and the exhaust port of the drum-type aerobic fermentation device are both connected with the air inlet of the waste gas treatment device, the discharge port of the drum-type aerobic fermentation device is connected with the feed port of the crushing impurity removal device, and the discharge port of the crushing impurity removal device is connected with the feed port of the storage tank;
the production method comprises the following steps:
(1) the automatic kitchen waste sorting machine mechanically removes impurities from the collected kitchen waste: picking and removing refractory substances in the kitchen waste by using an impurity remover;
(2) crushing and pulping the sorted kitchen waste by using a crushing and pulping machine to form viscous slurry, and filtering and removing refractory substances in the slurry;
(3) sending the slurry into a pretreatment solid-liquid separation device for solid-liquid separation;
(4) the separated solid matters of the kitchen waste enter a steam-feeding temperature-increasing turning and dehydrating device for dehydration treatment, meanwhile, an air supply device feeds 38-40 ℃ medium-temperature dry air into the steam-feeding temperature-increasing turning and dehydrating device, and a dehumidifying device extracts the water vapor removed from the kitchen waste and discharges the water vapor into the atmosphere after the treatment of a waste gas treatment device;
(5) the dehydrated kitchen waste enters a drum-type aerobic fermentation device for aerobic fermentation, meanwhile, an air supply device introduces medium-temperature dry air with the temperature of 38-40 ℃ into the drum-type aerobic fermentation device, and waste gas in the drum-type aerobic fermentation device is discharged, treated by a waste gas treatment device and discharged into the atmosphere;
(6) feeding the aerobically fermented material into a crushing and impurity removing device for crushing, and removing flexible impurities to prepare a feed additive;
(7) the feed additive is transferred to a storage tank for storage.
The pretreatment solid-liquid separation device comprises a first outer shell, a cylindrical filter screen cylinder is arranged in the first outer shell along the front-back direction, the front end part and the back end part of the first outer shell are rotatably connected with a reducing rotating shaft, the reducing rotating shaft is positioned in the filter screen cylinder and has the same central line with the filter screen cylinder, the outer diameter of the reducing rotating shaft is gradually increased from front to back, spiral blades are arranged outside the reducing rotating shaft along the axial direction, a first material inlet is arranged at the top of the front side of the first outer shell, a first material outlet is arranged at the bottom of the back side of the first outer shell, the lower end of the first material inlet and the upper end of the first material outlet are respectively communicated with the top of the front side and the bottom of the back side of the filter screen cylinder, a first high-temperature steam passage with transparent front and back ends is arranged in the reducing rotating shaft along the axial; a first sealing cover plate is arranged at the top of the first outer shell and connected with a vacuumizing device;
a discharge port of the crushing pulping machine is connected with a first material inlet, and a first material outlet is connected with a feed port of a steam heating, turning and dehydrating device;
the bottom of the first outer shell is obliquely arranged in a manner that the front part is low and the rear part is high, a liquid outlet pipe is arranged on the left side of the bottom of the first outer shell, and an electromagnetic valve is arranged on the liquid outlet pipe;
evacuating device includes first air exhauster, the first wind-collecting cover of first condenser and a plurality of, first wind-collecting cover is by preceding evenly setting up on first sealed apron after to, first wind-collecting cover bottom is uncovered and with the inside intercommunication of first shell body, the top of every first wind-collecting cover all is connected with a lesson first evacuation branch pipe, the upper end of all first evacuation branch pipes is connected with same root first evacuation and is responsible for, the middle part that first evacuation was responsible for is connected with first exhaust column, the suction opening and the first air exhauster of first exhaust column are connected, first condenser sets up on first exhaust column.
The specific process of the step (3) is as follows: the reducing rotating shaft is in transmission connection with a power driving device at the front end or the rear end of the first shell body, the power driving device drives the reducing rotating shaft and the helical blades to rotate, the preliminarily sorted kitchen waste enters the filter screen cylinder from the first material inlet, the reducing rotating shaft drives the helical blades to rotate, the helical blades drive the kitchen waste to be conveyed backwards in the filter screen cylinder, because the outer diameter of the reducing rotating shaft is gradually increased from front to back, along with the forward and backward conveying of the kitchen waste in the filter screen cylinder, the kitchen waste is gradually and vigorously extruded, the liquid in the kitchen waste is extruded out, the liquid is an oil-water mixture, mainly water, so that solid and liquid of the kitchen waste are separated, finally the solid kitchen waste is discharged from the first material outlet, liquid flows to the bottom of the first outer shell from meshes of the filter screen cylinder and is temporarily stored, the electromagnetic valve is opened at intervals, and the liquid is discharged from the liquid outlet pipe;
when the solid-liquid separation of the kitchen waste is carried out, high-temperature steam enters a first high-temperature steam channel in the reducing rotating shaft from front to back or from back to front, the kitchen waste in the solid-liquid separation process is heated through the heat conduction function of the reducing rotating shaft, so that the temperature of the kitchen waste is increased, meanwhile, the first exhaust fan vacuumizes the inside of the closed first outer shell through the first exhaust pipe, the first main vacuumizing pipe and the first vacuumizing branch pipes, in a vacuum environment, the boiling point of water is reduced, the temperature of the kitchen waste is raised after being heated, so that liquid in the kitchen waste is directly changed into water vapor when being separated, the water vapor is pumped out of the first outer shell by the first exhaust fan, and is converted into water through the condensation of the first condenser and is collected, the waste gas pumped by the first exhaust fan is discharged into the atmosphere after being treated by the waste gas treatment device, the principle that the boiling point of water is reduced under the vacuum condition is adopted, so that the drying effect of the kitchen waste in the solid-liquid separation process is improved.
The inner diameter of the first high-temperature steam channel is gradually increased from front to back, and the wall thicknesses of part of the reducing rotating shafts in the filter screen cylinder are equal.
The first sealed apron is provided with the viewing aperture above first material export, and viewing aperture department is provided with the glass window, is provided with the handle on the glass window.
The steam-through temperature-raising turning and dehydrating device comprises a second outer shell with a U-shaped cross section, the front end part and the rear end part of the second outer shell are rotatably connected with an equal-diameter rotating shaft positioned in the second outer shell, a plurality of groups of turning blades arranged at intervals in the length direction are arranged outside the equal-diameter rotating shaft along the axial direction, a second material inlet connected with the first material outlet is arranged at the top of the front side of the second outer shell, a second material outlet is arranged at the bottom of the rear side of the second outer shell, a second high-temperature steam channel with two through front and rear ends is arranged inside the equal-diameter rotating shaft along the axial direction, and two ends of the equal-diameter rotating shaft are connected with a second rotary sealing; the outer wall of the second outer shell is provided with a steam heating coil, the bottom of the second outer shell is connected with an air injection mechanism, the top of the second outer shell is provided with a second sealing cover plate, and the second sealing cover plate is connected with a dehumidifying device;
the dehumidifying device comprises a second exhaust fan, a second condenser and a plurality of second condensation hoods, the second condensation hoods are uniformly arranged on a second sealing cover plate from front to back, the bottoms of the second condensation hoods are open and are communicated with the inside of a second outer shell, the top of each second condensation hood is connected with a section of second exhaust branch pipe, the upper ends of all the second exhaust branch pipes are connected with a same second exhaust main pipe, the middle part of the second exhaust main pipe is connected with a second exhaust pipe, an exhaust opening of the second exhaust pipe is connected with the second exhaust fan, and the second condenser is arranged on the second exhaust pipe; the exhaust port of the second exhaust fan is connected with the air inlet of the waste gas treatment device;
the air injection mechanism comprises a horizontally arranged gas injection main pipe, the gas injection main pipe is fixedly connected to the bottom of the steam heating coil, a plurality of gas injection holes are formed in the bottom of the second outer shell along the front-back direction, the top of the gas injection main pipe is connected with each gas injection hole through a vertically arranged gas injection branch pipe, and each gas injection branch pipe is provided with an electromagnetic valve; one end of the gas injection main pipe is blocked, and the other end of the gas injection main pipe is connected with a gas outlet of the air supply device;
the specific process of the step (4) is as follows: the equal-diameter rotating shaft is in transmission connection with a power driving mechanism at the front end or the rear end of the second outer shell, and the power driving mechanism drives the equal-diameter rotating shaft and the turning blade to rotate; the kitchen waste after solid-liquid separation enters a second outer shell from a second material inlet, the constant-diameter rotating shaft drives turning blades to rotate, the turning blades loosen and scatter the kitchen waste and drive the kitchen waste to be conveyed in the second outer shell from front to back, high-temperature steam heats the kitchen waste in the second outer shell from inside to outside through a second high-temperature steam channel in the constant-diameter rotating shaft from front to back or from back to front, and meanwhile, the high-temperature steam is introduced into a steam heating coil to heat the kitchen waste from outside to inside through the second outer shell, so that the temperature of the kitchen waste is increased in the turning process; in addition, high-pressure dry air is injected into the second outer shell from the bottom of the second outer shell upwards by the air supply device through the air injection main pipe and the plurality of air injection branch pipes, the injected air carries water vapor emitted by the heated kitchen waste and is exhausted out of the second outer shell upwards by the second exhaust fan, and meanwhile, the high-pressure dry air also plays a role in loosening the kitchen waste, so that the efficiency of turning and dehydrating is improved; the water vapor is pumped out of the second outer shell by a second exhaust fan, and is converted into water by condensation of a second condenser to be collected, and the waste gas pumped out by the second exhaust fan is treated by a waste gas treatment device and then is discharged into the atmosphere; and finally, discharging the dried and dehydrated solid kitchen waste from a second material outlet into the drum-type aerobic fermentation device.
The steam heating coil is arranged along the outer wall of the second outer shell in a winding mode, and the steam heating coil is bent at the upper part of the left side or the right side of the second outer shell and then downwards passes through the bottom of the second outer shell to reach the upper part of the right side or the left side of the second outer shell.
The water content in the kitchen waste is reduced to 45-50% after the dehydration treatment of the steam heating turning dehydration device.
Performing aerobic fermentation in a drum-type aerobic fermentation device for 3-5 days, and controlling the temperature at 35-40 ℃.
The material is smashed in smashing except that impurity device, and the particle diameter after smashing is less than or equal to 5mm, gets rid of flexible impurity for being greater than 5 mm's plastics impurity and other impurity that are difficult to smash.
By adopting the technical scheme, because the reducing rotating shaft and the equal-diameter rotating shaft rotate during operation, the two ends of the reducing rotating shaft and the equal-diameter rotating shaft are respectively provided with the first rotary sealing connecting device and the second rotary sealing connecting device which are connected with the gas supply pipeline of the high-temperature steam, the first rotary sealing connecting device and the second rotary sealing connecting device both adopt the rotary sealing connecting devices disclosed in patent documents with the names of road marking hand-push type high-pressure water cleaning vehicles and patent number 201610302969.3, and the first rotary sealing connecting device and the second rotary sealing connecting device are horizontally arranged, so that the functions of sealing and connecting the equal-diameter rotating shaft and the gas supply pipeline of the high-temperature steam can be achieved, the equal-diameter rotating shaft can rotate, and the gas supply pipelines of the high-temperature steam at the two ends cannot rotate.
The inner diameter of a first high-temperature steam channel in the reducing rotating shaft is gradually increased from front to back, and the wall thicknesses of the reducing rotating shafts in the filter screen cylinder are equal. Therefore, the heat exchange efficiency is fully improved on the premise of not reducing the strength of the reducing rotating shaft.
Set up the viewing aperture to be provided with the glass window in viewing aperture department, the workman often observes the condition whether take place to block up to first material export through the glass window. If the blockage occurs, the glass window is opened by operating the lifting handle, and the blocked part is dredged.
According to the invention, the kitchen waste is heated both externally and internally, so that the effect of heating the kitchen waste is improved, and the effect of turning and dehydrating is improved.
When a certain gas injection branch pipe is blocked by kitchen waste, the electromagnetic valves on other gas injection branch pipes can be completely closed, and the electromagnetic valve on the blocked gas injection branch pipe is opened, so that the gas flow pressure of the gas injection branch pipe is improved, and the blocked gas injection branch pipe is easily dredged by the high-pressure gas flow.
In conclusion, the invention organically combines product development and resource recycling by taking environmental protection and improvement, pollution prevention and reduction and ecological environment improvement as guidance and taking environmental benefits, social benefits and economic benefits as a principle. Through the treatment method, the solid obtained after solid-liquid separation is rich in organic matters, trace elements such as nitrogen, phosphorus, potassium, calcium, zinc, iron, manganese and the like, and various activated organisms such as growth hormone, vitamins, organic matters, amino acid and the like, and is subjected to dehydration, aerobic fermentation, crushing to obtain impurities, and then fermenting again to form a microbial inoculum to prepare the fermented feed additive.
The pretreatment solid-liquid separation device can be improved on the basis of the existing screw extruder, so that the solid-liquid separation effect is improved, the water content of solid kitchen waste is further reduced, and the drying time and cost of the steam heating turning dehydration device are reduced.
The steam-feeding, temperature-increasing, turning and dehydrating device has scientific principle, reasonable design and simple structure, can be improved on the basis of the conventional turning machine, improves the turning and dehydrating effect, further reduces the water content of solid kitchen waste, and improves the effect of subsequent fermentation treatment.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic structural diagram of a turning and dehydrating device heated by steam according to the present invention;
FIG. 3 is a schematic cross-sectional view of the second housing and the constant diameter spindle of FIG. 2;
FIG. 4 is a schematic view of the arrangement of the steam heating coils on the left or right side of the second housing;
FIG. 5 is a schematic view of the structure of a pretreatment solid-liquid separation apparatus according to the present invention.
Detailed Description
As shown in fig. 1-5, the production line adopted by the kitchen waste forage-oriented environment-friendly production method of the invention comprises an automatic kitchen waste sorting machine 50, a crushing pulping machine 51, a pretreatment solid-liquid separation device 20, a steam-heating turning dehydration device 21, an air supply device 22, a drum-type aerobic fermentation device 23, a waste gas treatment device 24, a crushing impurity-removing device 25 and a storage tank 26;
the discharge port of the automatic kitchen waste sorting machine 50 is connected with the feed port of a crushing pulping machine 51, the discharge port of the crushing pulping machine 51 is connected with the feed port of a pretreatment solid-liquid separation device 20, the discharge port of the pretreatment solid-liquid separation device 20 is connected with the feed port of a steam heating turning dehydration device 21, the air outlet of an air supply device 22 is respectively connected with the air inlet of the steam heating turning dehydration device 21 and the air inlet of a drum-type aerobic fermentation device 23, the discharge port of the steam heating turning dehydration device 21 is connected with the feed port of the drum-type aerobic fermentation device 23, the exhaust port of the pretreatment solid-liquid separation device 20, the exhaust port of the steam heating turning dehydration device 21 and the exhaust port of the drum-type aerobic fermentation device 23 are all connected with the air inlet of a waste gas treatment device 24, the discharge port of the aerobic fermentation device 23 is connected with the feed port of a crushing impurity, the discharge hole of the crushing and impurity removing device 25 is connected with the feed hole of the storage tank 26.
The automatic kitchen waste sorting machine 50, the crushing pulping machine 51, the air supply device 22, the drum-type aerobic fermentation device 23, the waste gas treatment device 24, the crushing impurity removal device 25 and the storage tank 26 are all the prior art, and the specific structure is not described again.
The production method comprises the following steps:
(1) the automatic kitchen waste sorting machine 50 mechanically removes impurities from kitchen waste: picking and removing refractory substances in the kitchen waste by an impurity remover (the refractory substances mainly comprise plastic bottles, metal bottles, plastic bags, metal and the like);
(2) the crushing pulping machine 51 is used for crushing and pulping the sorted kitchen waste to form thick slurry, and filtering and removing refractory substances in the slurry;
(3) the slurry is sent into a pretreatment solid-liquid separation device 20 for solid and liquid separation;
(4) the solid matters of the kitchen waste separated enter a steam-feeding temperature-increasing turning and dehydrating device 21 for dehydration treatment, meanwhile, an air supply device 22 feeds medium-temperature dry air with the temperature of 38-40 ℃ into the steam-feeding temperature-increasing turning and dehydrating device 21, a dehumidifying device extracts the water vapor removed from the kitchen waste, and the water vapor is treated by a waste gas treatment device 24 and is discharged into the atmosphere;
(5) the dehydrated kitchen waste enters a drum-type aerobic fermentation device 23 for aerobic fermentation, meanwhile, the air supply device 22 introduces medium-temperature dry air with the temperature of 38-40 ℃ into the drum-type aerobic fermentation device 23, and waste gas in the drum-type aerobic fermentation device 23 is discharged, treated by a waste gas treatment device 24 and discharged into the atmosphere;
(6) the material after aerobic fermentation enters a crushing and impurity removing device 25 for crushing, and the feed additive is prepared after flexible impurities are removed;
(7) the feed additive is delivered to a storage tank 26 for storage.
The pretreatment solid-liquid separation device 20 comprises a first outer shell 27, a cylindrical filter screen cylinder 28 is arranged in the first outer shell 27 along the front-back direction, the front end part and the back end part of the first outer shell 27 are rotatably connected with a reducing rotating shaft 29, the reducing rotating shaft 29 is positioned in the filter screen cylinder 28 and has the same central line with the filter screen cylinder 28, the outer diameter of the reducing rotating shaft 29 is gradually increased from front to back, spiral blades 30 are arranged outside the reducing rotating shaft 29 along the axial direction, a first material inlet 31 is arranged at the top of the front side of the first outer shell 27, a first material outlet 32 is arranged at the bottom of the back side of the first outer shell 27, the lower end of the first material inlet 31 and the upper end of the first material outlet 32 are respectively communicated with the top of the front side and the bottom of the back side of the filter screen cylinder 28, a first high-temperature steam passage with two through front and back ends is arranged in the reducing rotating shaft 29 along the axial direction, and; a first sealing cover plate 34 is arranged at the top of the first outer shell 27, and a vacuumizing device is connected to the first sealing cover plate 34; the discharge port of the crushing pulping machine 51 is connected with the first material inlet 31, and the first material outlet 32 is connected with the feed port of the steam heating, turning and dehydrating device 21.
The inner diameter of the first high-temperature steam channel is gradually increased from front to back, and the wall thickness of part of the reducing rotating shaft 29 in the filter screen cylinder 28 is equal.
The bottom of first shell body 27 is low back high slope setting before being, and the left side of first shell body 27 bottom is provided with drain pipe 35, is provided with solenoid valve 36 on the drain pipe 35.
The vacuumizing device comprises a first exhaust fan 37, a first condenser 38 and a plurality of first air collecting covers 39, the first air collecting covers 39 are uniformly arranged on the first sealing cover plate 34 from front to back, the bottoms of the first air collecting covers 39 are open and communicated with the inside of the first outer shell 27, the top of each first air collecting cover 39 is connected with a section of first vacuumizing branch pipe 40, the upper ends of all the first vacuumizing branch pipes 40 are connected with a same first vacuumizing main pipe 41, the middle of the first vacuumizing main pipe 41 is connected with a first exhaust pipe 42, an exhaust opening of the first exhaust pipe 42 is connected with the first exhaust fan 37, and the first condenser 38 is arranged on the first exhaust pipe 42.
The first sealing cover plate 34 is provided with a viewing port above the first material outlet 32, a glass window 43 is arranged at the viewing port, and a handle 44 is arranged on the glass window 43.
The specific process of the step (3) is as follows: the reducing rotating shaft 29 is in transmission connection with a power driving device at the front end or the rear end of the first outer shell 27, the power driving device drives the reducing rotating shaft 29 and the helical blade 30 to rotate, the preliminarily sorted kitchen waste enters the filter screen cylinder 28 from the first material inlet 31, the reducing rotating shaft 29 drives the helical blade 30 to rotate, the helical blade 30 drives the kitchen waste to be conveyed from front to back in the filter screen cylinder 28, the outer diameter of the reducing rotating shaft 29 is gradually increased from front to back, so that the kitchen waste is gradually and vigorously extruded along with the forward conveying of the kitchen waste in the filter screen cylinder 28, the liquid in the kitchen waste is an oil-water mixture, mainly water, so that solid and liquid of the kitchen waste are separated, finally the solid kitchen waste is discharged from the first material outlet 32, the liquid flows to the bottom of the first outer shell 27 from the mesh holes of the filter screen cylinder 28 and is temporarily stored at intervals, the electromagnetic valve 36 is opened, and liquid is discharged from the liquid outlet pipe 35;
when the solid-liquid separation of the kitchen waste is carried out, high-temperature steam enters a first high-temperature steam channel inside the reducing rotating shaft 29 from front to back or from back to front, the kitchen waste in the solid-liquid separation process is heated through the heat conduction effect of the reducing rotating shaft 29, so that the temperature of the kitchen waste is increased, meanwhile, a first exhaust fan 37 vacuumizes the inside of the closed first outer shell 27 through a first exhaust pipe 42, a first vacuumizing main pipe 41 and a plurality of first vacuumizing branch pipes 40, the boiling point of water is reduced in a vacuum environment, the temperature of the heated kitchen waste is increased, so that the liquid in the kitchen waste is directly changed into steam during the liquid separation, the steam is extracted out of the first outer shell 27 through the first exhaust fan 37 and is converted into water through the condensation of a first condenser 38 to be collected, and the waste gas extracted by the first exhaust fan 37 is discharged into the atmosphere after being treated by a waste gas treatment device, the principle that the boiling point of water is reduced under the vacuum condition is adopted, so that the drying effect of the kitchen waste in the solid-liquid separation process is improved.
The steam-through warming turning and dehydrating device 21 comprises a second outer shell 1 with a U-shaped cross section, the front end part and the rear end part of the second outer shell 1 are rotatably connected with an equal-diameter rotating shaft 2 positioned in the second outer shell 1, a plurality of groups of turning and dehydrating blades 3 arranged at intervals are arranged outside the equal-diameter rotating shaft 2 along the axial direction, a second material inlet 4 connected with a first material outlet 32 is arranged at the top of the front side of the second outer shell 1, a second material outlet 5 is arranged at the bottom of the rear side of the second outer shell 1, a second high-temperature steam channel 6 with through front and rear ends is arranged inside the equal-diameter rotating shaft 2 along the axial direction, and two ends of the equal-diameter rotating shaft 2 are both connected with a second rotary sealing connecting device 7; the outer wall of the second outer shell 1 is provided with a steam heating coil 8, the bottom of the second outer shell 1 is connected with an air injection mechanism, the top of the second outer shell 1 is provided with a second sealing cover plate 9, and the second sealing cover plate 9 is connected with a dehumidifying device.
The dehumidifying device comprises a second exhaust fan 10, a second condenser 11 and a plurality of second condensation hoods 12, the second condensation hoods 12 are uniformly arranged on a second sealing cover plate 9 from front to back, the bottoms of the second condensation hoods 12 are open and communicated with the inside of the second outer shell 1, the top of each second condensation hood 12 is connected with a section of second air exhaust branch pipe 13, the upper ends of all the second air exhaust branch pipes 13 are connected with a same second air exhaust main pipe 14, the middle part of the second air exhaust main pipe 14 is connected with a second exhaust pipe 15, the air exhaust port of the second exhaust pipe 15 is connected with the second exhaust fan 10, and the second condenser 11 is arranged on the second air exhaust pipe 15; the exhaust of second blower 10 is connected to the inlet of exhaust treatment device 24.
The steam heating coil 8 is arranged along the outer wall of the second outer shell 1 in a winding manner, and the steam heating coil 8 is bent at the upper part of the left side or the right side of the second outer shell 1 and then downwards passes through the bottom of the second outer shell 1 to the upper part of the right side or the left side of the second outer shell 1.
The air injection mechanism comprises a horizontally arranged air injection main pipe 16, the air injection main pipe 16 is fixedly connected to the bottom of the steam heating coil 8, a plurality of air injection holes are formed in the bottom of the second outer shell 1 along the front-back direction, the top of the air injection main pipe 16 is connected with each air injection hole through a vertically arranged air injection branch pipe 17, and each air injection branch pipe 17 is provided with an electromagnetic valve 36 (not shown in the figure); one end of the gas injection main pipe 16 is blocked, and the other end of the gas injection main pipe 16 is connected to an air outlet of an air supply device 22.
The step (4) is specifically as follows: the equal-diameter rotating shaft 2 is in transmission connection with a power driving mechanism at the front end or the rear end of the second outer shell 1, and the power driving mechanism drives the equal-diameter rotating shaft 2 and the turning blade 3 to rotate; the kitchen waste after solid-liquid separation enters a second outer shell 1 through a second material inlet 4, the constant-diameter rotating shaft 2 drives a turning blade 3 to rotate, the turning blade 3 loosens the kitchen waste and drives the kitchen waste to be conveyed from front to back in the second outer shell 1, high-temperature steam heats the kitchen waste in the second outer shell 1 from inside to outside through a second high-temperature steam channel 6 in the constant-diameter rotating shaft 2 from the front to back or from the back to the front, and meanwhile, the high-temperature steam is introduced into a steam heating coil 8 to heat the kitchen waste from outside to inside through the second outer shell 1, so that the temperature of the kitchen waste is increased in the turning process; in addition, the air supply device 22 injects high-pressure dry air from the bottom of the second outer shell 1 upwards into the second outer shell 1 through the air injection main pipe 16 and the plurality of air injection branch pipes 17, the injected air carries water vapor emitted from the heated kitchen waste and is extracted upwards out of the second outer shell 1 through the second exhaust fan 10, and meanwhile, the high-pressure dry air also plays a role in loosening the kitchen waste, so that the efficiency of turning and dehydrating is improved; the water vapor is pumped out of the second outer shell 1 by a second exhaust fan 10, and is condensed by a second condenser 11 and then converted into water to be collected, and the waste gas pumped out by the second exhaust fan 10 is treated by a waste gas treatment device 24 and then is discharged into the atmosphere; and finally, discharging the dried and dehydrated solid kitchen waste from a second material outlet 5 into a drum-type aerobic fermentation device 23.
After the dehydration treatment of the steam heating turning dehydration device 21, the water content in the kitchen waste is reduced to 45-50%.
Performing aerobic fermentation in a drum-type aerobic fermentation device 23 for 3-5 days, and controlling the temperature at 35-40 ℃.
The material is smashed in smashing except that impurity device 25, and the particle diameter after smashing is less than or equal to 5mm, gets rid of flexible impurity for being greater than 5 mm's plastics impurity and other impurity that are difficult to smash.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (9)
1. The environment-friendly production method of the kitchen waste forage is characterized in that: the production line adopted by the production method comprises an automatic kitchen waste sorting machine, a crushing pulping machine, a pretreatment solid-liquid separation device, a steam-introducing warming turning dehydration device, an air supply device, a drum-type aerobic fermentation device, a waste gas treatment device, a crushing impurity-removing device and a storage tank;
the discharge port of the automatic kitchen waste sorting machine is connected with the feed port of the crushing pulping machine, the discharge port of the crushing pulping machine is connected with the feed port of the pretreatment solid-liquid separation device, the discharge port of the pretreatment solid-liquid separation device is connected with the feed port of the steam-feeding warming turning dehydration device, the air outlet of the air supply device is respectively connected with the air inlet of the steam-feeding warming turning dehydration device and the air inlet of the drum-type aerobic fermentation device, the discharge port of the steam-feeding warming turning dehydration device is connected with the feed port of the drum-type aerobic fermentation device, and the exhaust port of the pretreatment solid-liquid separation device, the exhaust port of the steam heating turning dehydration device and the exhaust port of the drum-type aerobic fermentation device are both connected with the air inlet of the waste gas treatment device, the discharge port of the drum-type aerobic fermentation device is connected with the feed port of the crushing impurity removal device, and the discharge port of the crushing impurity removal device is connected with the feed port of the storage tank;
the production method comprises the following steps:
(1) the automatic kitchen waste sorting machine mechanically removes impurities from the collected kitchen waste: picking and removing refractory substances in the kitchen waste by using an impurity remover;
(2) crushing and pulping the sorted kitchen waste by using a crushing and pulping machine to form viscous slurry, and filtering and removing refractory substances in the slurry;
(3) sending the slurry into a pretreatment solid-liquid separation device for solid-liquid separation;
(4) the separated solid matters of the kitchen waste enter a steam-feeding temperature-increasing turning and dehydrating device for dehydration treatment, meanwhile, an air supply device feeds 38-40 ℃ medium-temperature dry air into the steam-feeding temperature-increasing turning and dehydrating device, and a dehumidifying device extracts the water vapor removed from the kitchen waste and discharges the water vapor into the atmosphere after the treatment of a waste gas treatment device;
(5) the dehydrated kitchen waste enters a drum-type aerobic fermentation device for aerobic fermentation, meanwhile, an air supply device introduces medium-temperature dry air with the temperature of 38-40 ℃ into the drum-type aerobic fermentation device, and waste gas in the drum-type aerobic fermentation device is discharged, treated by a waste gas treatment device and discharged into the atmosphere;
(6) feeding the aerobically fermented material into a crushing and impurity removing device for crushing, and removing flexible impurities to prepare a feed additive;
(7) the feed additive is conveyed to a storage tank for storage;
the steam-through temperature-raising turning and dehydrating device comprises a second outer shell with a U-shaped cross section, the front end part and the rear end part of the second outer shell are rotatably connected with an equal-diameter rotating shaft positioned in the second outer shell, a plurality of groups of turning blades arranged at intervals in the length direction are arranged outside the equal-diameter rotating shaft along the axial direction, a second material inlet connected with the first material outlet is arranged at the top of the front side of the second outer shell, a second material outlet is arranged at the bottom of the rear side of the second outer shell, a second high-temperature steam channel with two through front and rear ends is arranged inside the equal-diameter rotating shaft along the axial direction, and two ends of the equal-diameter rotating shaft are connected with a second rotary sealing; the outer wall of the second outer shell is provided with a steam heating coil, the bottom of the second outer shell is connected with an air injection mechanism, the top of the second outer shell is provided with a second sealing cover plate, and the second sealing cover plate is connected with a dehumidifying device;
the dehumidifying device comprises a second exhaust fan, a second condenser and a plurality of second condensation hoods, the second condensation hoods are uniformly arranged on a second sealing cover plate from front to back, the bottoms of the second condensation hoods are open and are communicated with the inside of a second outer shell, the top of each second condensation hood is connected with a section of second exhaust branch pipe, the upper ends of all the second exhaust branch pipes are connected with a same second exhaust main pipe, the middle part of the second exhaust main pipe is connected with a second exhaust pipe, an exhaust opening of the second exhaust pipe is connected with the second exhaust fan, and the second condenser is arranged on the second exhaust pipe; the exhaust port of the second exhaust fan is connected with the air inlet of the waste gas treatment device;
the air injection mechanism comprises a horizontally arranged gas injection main pipe, the gas injection main pipe is fixedly connected to the bottom of the steam heating coil, a plurality of gas injection holes are formed in the bottom of the second outer shell along the front-back direction, the top of the gas injection main pipe is connected with each gas injection hole through a vertically arranged gas injection branch pipe, and each gas injection branch pipe is provided with an electromagnetic valve; one end of the gas injection main pipe is blocked, and the other end of the gas injection main pipe is connected with a gas outlet of the air supply device;
the specific process of the step (4) is as follows: the equal-diameter rotating shaft is in transmission connection with a power driving mechanism at the front end or the rear end of the second outer shell, and the power driving mechanism drives the equal-diameter rotating shaft and the turning blade to rotate; the kitchen waste after solid-liquid separation enters a second outer shell from a second material inlet, the constant-diameter rotating shaft drives turning blades to rotate, the turning blades loosen and scatter the kitchen waste and drive the kitchen waste to be conveyed in the second outer shell from front to back, high-temperature steam heats the kitchen waste in the second outer shell from inside to outside through a second high-temperature steam channel in the constant-diameter rotating shaft from front to back or from back to front, and meanwhile, the high-temperature steam is introduced into a steam heating coil to heat the kitchen waste from outside to inside through the second outer shell, so that the temperature of the kitchen waste is increased in the turning process; in addition, high-pressure dry air is injected into the second outer shell from the bottom of the second outer shell upwards by the air supply device through the air injection main pipe and the plurality of air injection branch pipes, the injected air carries water vapor emitted by the heated kitchen waste and is exhausted out of the second outer shell upwards by the second exhaust fan, and meanwhile, the high-pressure dry air also plays a role in loosening the kitchen waste, so that the efficiency of turning and dehydrating is improved; the water vapor is pumped out of the second outer shell by a second exhaust fan, and is converted into water by condensation of a second condenser to be collected, and the waste gas pumped out by the second exhaust fan is treated by a waste gas treatment device and then is discharged into the atmosphere; and finally, discharging the dried and dehydrated solid kitchen waste from a second material outlet into the drum-type aerobic fermentation device.
2. The environment-friendly production method of kitchen waste forage according to claim 1, which is characterized in that: the pretreatment solid-liquid separation device comprises a first outer shell, a cylindrical filter screen cylinder is arranged in the first outer shell along the front-back direction, the front end part and the back end part of the first outer shell are rotatably connected with a reducing rotating shaft, the reducing rotating shaft is positioned in the filter screen cylinder and has the same central line with the filter screen cylinder, the outer diameter of the reducing rotating shaft is gradually increased from front to back, spiral blades are arranged outside the reducing rotating shaft along the axial direction, a first material inlet is arranged at the top of the front side of the first outer shell, a first material outlet is arranged at the bottom of the back side of the first outer shell, the lower end of the first material inlet and the upper end of the first material outlet are respectively communicated with the top of the front side and the bottom of the back side of the filter screen cylinder, a first high-temperature steam passage with transparent front and back ends is arranged in the reducing rotating shaft along the axial; a first sealing cover plate is arranged at the top of the first outer shell and connected with a vacuumizing device;
a discharge port of the crushing pulping machine is connected with a first material inlet, and a first material outlet is connected with a feed port of a steam heating, turning and dehydrating device;
the bottom of the first outer shell is obliquely arranged in a manner that the front part is low and the rear part is high, a liquid outlet pipe is arranged on the left side of the bottom of the first outer shell, and an electromagnetic valve is arranged on the liquid outlet pipe;
evacuating device includes first air exhauster, the first wind-collecting cover of first condenser and a plurality of, first wind-collecting cover is by preceding evenly setting up on first sealed apron after to, first wind-collecting cover bottom is uncovered and with the inside intercommunication of first shell body, the top of every first wind-collecting cover all is connected with a lesson first evacuation branch pipe, the upper end of all first evacuation branch pipes is connected with same root first evacuation and is responsible for, the middle part that first evacuation was responsible for is connected with first exhaust column, the suction opening and the first air exhauster of first exhaust column are connected, first condenser sets up on first exhaust column.
3. The environment-friendly production method of kitchen waste forage according to claim 2, characterized in that: the specific process of the step (3) is as follows: the reducing rotating shaft is in transmission connection with a power driving device at the front end or the rear end of the first shell body, the power driving device drives the reducing rotating shaft and the helical blades to rotate, the preliminarily sorted kitchen waste enters the filter screen cylinder from the first material inlet, the reducing rotating shaft drives the helical blades to rotate, the helical blades drive the kitchen waste to be conveyed backwards in the filter screen cylinder, because the outer diameter of the reducing rotating shaft is gradually increased from front to back, along with the forward and backward conveying of the kitchen waste in the filter screen cylinder, the kitchen waste is gradually and vigorously extruded, the liquid in the kitchen waste is extruded out, the liquid is an oil-water mixture, mainly water, so that solid and liquid of the kitchen waste are separated, finally the solid kitchen waste is discharged from the first material outlet, liquid flows to the bottom of the first outer shell from meshes of the filter screen cylinder and is temporarily stored, the electromagnetic valve is opened at intervals, and the liquid is discharged from the liquid outlet pipe;
when the solid-liquid separation of the kitchen waste is carried out, high-temperature steam enters a first high-temperature steam channel in the reducing rotating shaft from front to back or from back to front, the kitchen waste in the solid-liquid separation process is heated through the heat conduction function of the reducing rotating shaft, so that the temperature of the kitchen waste is increased, meanwhile, the first exhaust fan vacuumizes the inside of the closed first outer shell through the first exhaust pipe, the first main vacuumizing pipe and the first vacuumizing branch pipes, in a vacuum environment, the boiling point of water is reduced, the temperature of the kitchen waste is raised after being heated, so that liquid in the kitchen waste is directly changed into water vapor when being separated, the water vapor is pumped out of the first outer shell by the first exhaust fan, and is converted into water through the condensation of the first condenser and is collected, the waste gas pumped by the first exhaust fan is discharged into the atmosphere after being treated by the waste gas treatment device, the principle that the boiling point of water is reduced under the vacuum condition is adopted, so that the drying effect of the kitchen waste in the solid-liquid separation process is improved.
4. The environment-friendly kitchen waste forage production method according to claim 3, characterized in that: the inner diameter of the first high-temperature steam channel is gradually increased from front to back, and the wall thicknesses of part of the reducing rotating shafts in the filter screen cylinder are equal.
5. The environment-friendly kitchen waste forage production method according to claim 3, characterized in that: the first sealed apron is provided with the viewing aperture above first material export, and viewing aperture department is provided with the glass window, is provided with the handle on the glass window.
6. The environment-friendly production method of kitchen waste forage according to claim 1, which is characterized in that: the steam heating coil is arranged along the outer wall of the second outer shell in a winding mode, and the steam heating coil is bent at the upper part of the left side or the right side of the second outer shell and then downwards passes through the bottom of the second outer shell to reach the upper part of the right side or the left side of the second outer shell.
7. The environment-friendly production method of kitchen waste forage according to claim 1, which is characterized in that: the water content in the kitchen waste is reduced to 45-50% after the dehydration treatment of the steam heating turning dehydration device.
8. The environment-friendly production method of kitchen waste forage according to claim 1, which is characterized in that: performing aerobic fermentation in a drum-type aerobic fermentation device for 3-5 days, and controlling the temperature at 35-40 ℃.
9. The environment-friendly production method of kitchen waste forage according to claim 1, which is characterized in that: the material is smashed in smashing except that impurity device, and the particle diameter after smashing is less than or equal to 5mm, gets rid of flexible impurity for being greater than 5 mm's plastics impurity and other impurity that are difficult to smash.
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| CN106966767A (en) * | 2017-03-30 | 2017-07-21 | 张共敏 | Kitchen garbage energy, Fertilizer Transformed and fodder fusion treatment technique |
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| JPS6038099A (en) * | 1983-08-08 | 1985-02-27 | Ebara Infilco Co Ltd | Treatment of organic waste material |
| CN1943390A (en) * | 2006-04-23 | 2007-04-11 | 青海洁神食品垃圾处理产业有限公司 | Method for producing kitchen trash feed |
| CN101216242A (en) * | 2007-12-28 | 2008-07-09 | 青海洁神食品垃圾处理产业有限公司 | Kitchen garbage drying device and method |
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Effective date of registration: 20220817 Address after: 2nd Floor, No. 186 Panlong Road, Panlong Town, Rongchang District, Chongqing 402460 (self-promised) Patentee after: Chongqing Silage Co., Ltd. Address before: 450003 24 Building 5, Tianming Road, Jinshui District, Zhengzhou, Henan, China, 16 Patentee before: Zhao Hongli |