CN111375626B - Kitchen waste hydrolysis treatment method - Google Patents
Kitchen waste hydrolysis treatment method Download PDFInfo
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- CN111375626B CN111375626B CN202010282365.3A CN202010282365A CN111375626B CN 111375626 B CN111375626 B CN 111375626B CN 202010282365 A CN202010282365 A CN 202010282365A CN 111375626 B CN111375626 B CN 111375626B
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- aeration
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- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 168
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 163
- 239000010806 kitchen waste Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012216 screening Methods 0.000 claims abstract description 60
- 239000010865 sewage Substances 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000005273 aeration Methods 0.000 claims description 131
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 83
- 239000004519 grease Substances 0.000 claims description 44
- 238000001179 sorption measurement Methods 0.000 claims description 42
- 238000001914 filtration Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 15
- 239000005416 organic matter Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 10
- 229910010272 inorganic material Inorganic materials 0.000 claims description 9
- 239000011147 inorganic material Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000011368 organic material Substances 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 210000004177 elastic tissue Anatomy 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000000737 periodic effect Effects 0.000 abstract 1
- 238000004659 sterilization and disinfection Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000007873 sieving Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- 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
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
Abstract
The invention relates to a kitchen waste hydrolysis treatment method, and a device used in the method comprises a hydrolysis high-pressure tank part, a sewage treatment part and a screening part; the method comprises the steps of dry air stirring of materials, periodic high-pressure hydrolysis, drying treatment, sewage discharge and treatment, material screening and the like. Through the arrangement of the device and the arrangement of the steps, the efficient separation treatment of the kitchen waste is realized.
Description
Technical Field
The invention relates to the field of garbage treatment, in particular to a kitchen garbage hydrolysis treatment method.
Background
The kitchen waste is a mixture of sewage and solid dirt as a main body, and contains a large amount of organic matters, so that a large amount of microbes such as bacteria can be bred in the temporary storage and transportation process, the transportation and storage time of the kitchen waste is reduced as much as possible or the kitchen waste is required to be subjected to deodorization and disinfection treatment and then to subsequent treatment, but the disinfectant is generally required to be added due to the deodorization and disinfection, and the addition of the disinfectant also prolongs the working procedures of the subsequent treatment.
At present, the kitchen waste is treated by adopting a high-pressure high-temperature steam treatment method, wherein the high-pressure high-temperature steam treatment method mainly adopts steam with the pressure of 0.8-1 MPa and the temperature of 120-210 ℃ for treatment, the kitchen waste is quickly decomposed and degraded through treatment, and thorough disinfection and sterilization are realized, so that the effect of converting organic waste into grease organic matter is realized. However, the existing high-pressure high-temperature steam treatment method can only realize the effects of sterilization and organic matter conversion, and complex separation and treatment steps are required subsequently.
Disclosure of Invention
Aiming at the technical problem, the invention provides a kitchen waste hydrolysis treatment method.
The method is realized by the following technical means:
a kitchen waste hydrolysis treatment device comprises a hydrolysis high-pressure tank component, a sewage treatment component and a screening component.
The hydrolysis high-pressure tank component comprises a hydrolysis high-pressure tank body, a hydrolysis tank feeding opening, a hydrolysis tank exhaust pipe, an oil discharge opening, an oil discharge pipe, an oil tank filter residue bag, an oil temporary storage tank, a hot dry air inlet pipe, a hot dry air injection pipe, an air heating cavity, an air inlet fan, a hydrolysis tank discharge opening, a hydrolysis tank discharge pipe and a hydrolysis tank water outlet filter plate; the high-pressure jar of hydrolysising body is for the dome round bottom hollow cylinder structure of vertically putting, is provided with at the top of the high-pressure jar of hydrolysising body hydrolysis jar pan feeding mouth and hydrolysis jar blast pipe, is provided with the grease discharge port at the middle part of the lateral wall of the high-pressure jar of hydrolysising body, grease discharge pipe one end and grease discharge port intercommunication, another pot head are equipped with grease case filter residue bag, grease temporary storage case sets up in the outside of the high-pressure jar of hydrolysising body and wraps and establish in grease discharge pipe and grease case filter residue bag outside, hot dry air entry sets up in the lower part of the lateral wall of the high-pressure jar of hydrolysising body, hot dry air inlet tube one end and hot dry air entry intercommunication, the other end and the air heating chamber intercommunication that sets up in the high-pressure jar of hydrolysising body outside, the air heating chamber is used for, the hot dry air injection pipe is integrally arranged in the hydrolysis high-pressure tank body, one end of the hot dry air injection pipe is communicated with the hot dry air inlet pipe, the other end of the hot dry air injection pipe is arranged in a zigzag manner, and a plurality of through holes are uniformly distributed on the pipe wall of the hot dry air injection pipe; be provided with in the bottommost of the round bottom of the high-pressure jar of hydrolysising body the hydrolysis tank bin outlet, hydrolysis tank discharge tube with hydrolysis tank bin outlet intercommunication, and be provided with the switching valve on hydrolysis tank discharge tube, be provided with at the lateral part of the round bottom of the high-pressure jar of hydrolysising body hydrolysis tank play water filter plate, hydrolysis tank play water filter plate is the through hole board of densely covered.
The sewage treatment component comprises a filtering chamber, an aeration chamber and an adsorption chamber, wherein the filtering chamber comprises a sewage inlet pipe, a sewage inlet valve, a filtering chamber inlet, a first filtering plate and a filtering chamber water outlet; the inlet of the filter chamber is arranged at the top end of one side wall of the filter chamber, one end of the sewage inlet pipe is communicated with the inside of the hydrolysis high-pressure tank body through the water outlet filter plate of the hydrolysis tank, the other end of the sewage inlet pipe is communicated with the inlet of the filter chamber, a water outlet of the filter chamber is arranged on the side wall or the bottom wall of the filter chamber opposite to the inlet of the filter chamber, and the first filter plate is vertically or obliquely arranged between the inlet of the filter chamber and the; the aeration chamber comprises an aeration cavity, an aeration opening, an aeration air inlet pipe, an aeration chamber exhaust pipe, an aeration chamber water inlet, an aeration chamber water outlet, an aeration chamber drain pipe and an aeration chamber filter residue bag; the aeration chamber is arranged at the bottommost part of the aeration chamber, aeration ports are uniformly distributed on the top wall of the aeration chamber, the bottom wall of the aeration chamber is communicated with the aeration air inlet pipe, a pressurization air pump is arranged on the aeration air inlet pipe, a water inlet of the aeration chamber is arranged on the top wall of the aeration chamber and is communicated with a water outlet of the filter chamber, an exhaust pipe of the aeration chamber is also arranged on the top wall of the aeration chamber, and a water outlet of the aeration chamber is arranged on the side wall of the aeration chamber above the aeration chamber; the adsorption chamber comprises an adsorption chamber inlet, a second filter plate, an adsorption plate and a treated water discharge port; the adsorption chamber entry sets up the lateral wall top at the adsorption chamber, the aeration chamber drain pipe runs through the adsorption chamber entry, aeration chamber drain pipe one end and aeration chamber outlet intercommunication, another pot head are equipped with aeration chamber filter residue bag, and horizontal or slope is provided with in the adsorption chamber of aeration chamber filter residue bag below the second filter and adsorption plate, the mixture that the adsorption plate is centre gripping quartz sand granule and active carbon granule for both sides stainless steel perforated plate, the treatment water discharge opening sets up the bottom at the diapire of adsorption chamber or lateral wall.
The screening component comprises a screening chamber shell, a screening chamber feeding port, a screening plate, a stirring shaft, stirring blades, a stirring motor, an inorganic matter discharging port, an inorganic matter temporary storage box, an organic matter discharging port and an organic matter temporary storage box; screening room pan feeding mouth set up on the lateral wall top of screening outdoor housing and with hydrolysis tank row material pipe intercommunication, at the inside horizontal screening board that has of screening outdoor housing, (mixing) shaft, the (mixing) shaft bottom is provided with stirring vane, stirring vane's rotation plane and screening board parallel and with screening board between clearance less than or equal to 10mm, agitator motor sets up on the outer roof of screening outdoor housing and through shaft coupling and agitator shaft connection and drive the rotation of (mixing) shaft, is provided with in the lateral wall department of meeting of screening board and screening outdoor housing the inorganic matter discharge gate, inorganic matter temporary storage box and inorganic matter discharge gate intercommunication are provided with the organic matter discharge gate on the diapire of screening outdoor housing, organic matter temporary storage box and organic matter discharge gate intercommunication.
A kitchen waste hydrolysis treatment method, which is carried out by using the kitchen waste hydrolysis treatment device of claim 1, and specifically comprises the following steps:
1) the kitchen waste is thrown into the hydrolysis high-pressure tank body through the feeding port of the hydrolysis tank, the exhaust pipe of the hydrolysis tank is closed, the grease discharging port is closed, the inlet valve of the sewage is closed, the discharging port of the hydrolysis tank is closed, the hot dry air inlet is closed, when the material in the hydrolysis high-pressure tank body reaches 10% of the total volume, the hot dry air inlet is opened, the air temperature of the hot dry air is adjusted to 110-120 ℃, and the exhaust pipe of the hydrolysis tank is opened.
2) When the total volume of the materials in the hydrolysis high-pressure tank reaches 50-60%, closing an exhaust pipe of the hydrolysis tank, increasing the temperature of hot dry air to 121-130 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.6-0.65 MPa, keeping the pressure for 10-15 min, opening the exhaust pipe of the hydrolysis tank to release the pressure to the normal pressure, adjusting the air temperature of the hot dry air to 50-60 ℃, treating for 15-20 min, closing the exhaust pipe of the hydrolysis tank again, adjusting the temperature of the hot dry air to 160-180 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.8-0.9 MPa, keeping the pressure for 10-15 min, opening the exhaust pipe of the hydrolysis tank to release the pressure to 0.5-0.6 MPa, closing the exhaust pipe of the hydrolysis tank, adjusting the temperature of the hot dry air to 180-195 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.9-1 MPa, and keeping the pressure and the temperature for 50-80 min.
3) Opening an exhaust pipe of the hydrolysis tank, closing a hot dry air inlet, releasing pressure to 0.2-0.25 MPa, opening a grease discharge port, then opening a sewage inlet valve until the pressure in the hydrolysis high-pressure tank body is reduced to normal pressure and no sewage flows into the sewage inlet pipe, and closing the sewage inlet valve and the grease discharge port; the sewage enters the aeration chamber after being filtered through the first filter plate, open the aeration and go into the trachea, discharge the bubble to the sewage in through the aeration mouth, make debris in the sewage carry and float to the water surface formation foam by the bubble, after aeration treatment 20~50min, open the aeration chamber outlet, the water passes through aeration chamber filter residue bag and enters into the adsorption chamber, the foam is filtered by aeration chamber filter residue bag, the water passes through the second filter plate and filters after further removing debris, discharge through handling water discharge opening after further purifying through the adsorption plate.
4) And opening a hot dry air inlet, and drying the materials for 30-50 min.
5) Closing an exhaust pipe of the hydrolysis tank, increasing the pressure in the hydrolysis high-pressure tank to 0.25-0.3 MPa, opening a discharge port of the hydrolysis tank, discharging the materials into a screening chamber, starting a stirring shaft, stirring the materials on the upper part of a screening plate by a stirring blade and screening by the screening plate, discharging the materials on the plate into an inorganic material temporary storage box through an inorganic material discharge port, and discharging the materials under the plate into an organic material temporary storage box through an organic material discharge port.
Furthermore, the grease box filter residue bag and the aeration chamber filter residue bag are both of a bag-shaped structure made of elastic fiber cloth.
Furthermore, an air inlet fan is arranged at the inlet of the air heating cavity.
Further, the aeration air inlet pipe is communicated with the hydrolysis tank exhaust pipe.
Furthermore, first filter, second filter and hydrolysis tank play water filter plate are densely covered through-hole board, and the through-hole aperture of hydrolysis tank play water filter plate is about 5~8mm, and the through-hole aperture of first filter is about 3~5mm, and the through-hole aperture of second filter is about 0.5~1.5 mm.
Furthermore, the height of the grease discharge port is about 50-60% of the total volume of the hydrolysis high-pressure tank body.
Further, an open/close valve is provided in the treated water discharge port.
Furthermore, an alkali liquor adding box is arranged on the top wall of the aeration chamber, and the alkali liquor adding box releases calcium hydroxide or sodium hydroxide solution to the aeration chamber.
Through the implementation of the technical scheme, the invention can obtain the following technical effects:
through the arrangement of the hydrolysis high-pressure tank body, the high-temperature treatment of repeated periodical pressurization and pressurization is carried out for many times, and the high-temperature gas is introduced, so that the high-temperature steam formed in the high-temperature gas has high water content in the kitchen waste, the high-temperature high-pressure decomposition and degradation of the kitchen waste are realized, the complete disinfection treatment of the kitchen waste is realized, harmful microorganisms in the kitchen waste are thoroughly killed, and the disinfection and hydrolysis treatment of the kitchen waste is realized. Due to the high-temperature and high-pressure treatment, macromolecular organic matters in the oil are decomposed into micromolecular organic matters, so that the oil integrally floats on the top layer of the material, the oil on the top layer is discharged through an oil discharge port, impurities on the oil discharge port are filtered by arranging an oil tank filter residue bag, and the oil is stored.
When the waste is in a high-temperature and high-pressure working state, organic matters in the waste are decomposed and degraded, macromolecules are broken into small molecules, and the decomposed organic matters are further crushed into powder in the drying and scattering process of multiple high-pressure-low-pressure repeated treatment and hot dry air blowing, but the original size and shape of the inorganic matters are basically kept because the inorganic matters do not reach the pressure and temperature for changing the physical properties of the inorganic matters, so that the crushed organic matters are screened to the lower part of the screening plate by arranging the screening plate, and the inorganic matters with larger relative sizes are kept to the upper part of the screening plate, thereby separating the organic matters from the inorganic matters.
The water body after high-pressure and high-temperature hydrolysis is discharged through the filter plate by arranging the inclined hydrolysis tank water outlet filter plate, so that about 80-85% of water can be separated from the solid material (after water is drained, hot dry air is blown to continue drying, so that the water content in the material is less than 10%), the water passes through the first filter plate and then filters out the residual impurities again, then enters the aeration chamber and passes through the bubbles sprayed by the aeration chamber, because the surface tension of the surface of the air bubbles enables the floccules and particles in the water body to form the air bubbles on the surface of the water body, the air bubbles are removed when the water body is released through the filter residue bag of the aeration chamber, and the water passes through the second filter again after the aeration chamber filter residue bag and realizes meticulous filtration, realizes adsorbing through the adsorption plate that has quartz sand and active carbon mixture and purifies to can realize low dirty emission (be close to the normal water index) through the discharged water body of processing water discharge port. Meanwhile, the gas discharged from the gas discharge pipe of the hydrolysis tank is mixed with acid corrosion gas, the acid corrosion gas is temporarily stored and enters the gas pipe through aeration, and after the acid corrosion gas is contacted with a water body, the acid gas (oxysulfide and nitric oxide) in the gas pipe can be adsorbed, so that the discharged gas is further purified.
Drawings
Fig. 1 is a schematic structural diagram of the kitchen waste hydrolysis treatment device viewed from inside.
Wherein: 100-liquid level after hydrolysis treatment of a hydrolysis tank, 101-hydrolysis high-pressure tank body, 102-hydrolysis tank inlet, 103-hydrolysis tank exhaust pipe, 105-grease outlet, 106-grease tank filter residue bag, 107-grease temporary storage tank, 108-hot dry air inlet pipe, 109-hot dry air injection pipe, 110-air heating chamber, 111-air inlet fan, 112-hydrolysis tank discharge outlet, 113-hydrolysis tank water outlet filter plate, 201-sewage inlet valve, 202-filter chamber inlet, 203-first filter plate, 204-filter chamber water outlet, 205-aeration chamber, 206-aeration port, 207-aeration inlet pipe, 208-aeration chamber exhaust pipe, 209-aeration chamber water inlet, 210-aeration chamber water outlet, 211-aeration chamber filter residue bag, 212-adsorption chamber, 213-second filter plate, 214-adsorption plate, 215-treated water discharge port, 301-screening chamber feed port, 302-screening plate, 303-stirring shaft, 304-stirring blade, 305-stirring motor, 306-inorganic material discharge port, 307-inorganic material temporary storage tank, 308-organic material discharge port, 309-organic material temporary storage tank.
Detailed Description
Further description is made with reference to the accompanying drawings: fig. 1 is a kitchen waste hydrolysis treatment device of this embodiment, including hydrolysis high-pressure tank part, sewage treatment part and screening part.
As shown in fig. 1, the hydrolysis high-pressure tank component comprises a hydrolysis high-pressure tank body 101, a hydrolysis tank material inlet 102, a hydrolysis tank exhaust pipe 103, a grease outlet 105, a grease discharge pipe, a grease tank residue bag 106, a grease temporary storage tank 107, a hot dry air inlet pipe 108, a hot dry air injection pipe 109, an air heating cavity 110, a hydrolysis tank material outlet 112, a hydrolysis tank material discharge pipe and a hydrolysis tank water outlet filter plate 113; as shown in figure 1 the high pressure tank body of hydrolysising is the dome round bottom hollow cylinder structure (bottom opening) of vertically putting, is provided with at the top of the high pressure tank body of hydrolysising hydrolysis pan feeding mouth and hydrolysis tank blast pipe, is provided with the grease discharge port at the middle part of the lateral wall of the high pressure tank body of hydrolysising, grease discharge pipe right-hand member and grease discharge port intercommunication, left end cover are equipped with grease case filter residue bag, grease temporary storage box sets up in the outside of the high pressure tank body of hydrolysising and wraps and establish in grease discharge pipe and grease case filter residue bag outside, hot dry air entry sets up in the lower part of the lateral wall of the high pressure tank body of hydrolysising, hot dry air inlet tube left end and hot dry air entry intercommunication, right-hand member and the outside air heating chamber intercommunication of the high pressure tank body of hydrolysising of setting, the air heating chamber is used for heating and drying the air that enters, the hot dry air injection pipe is integrally arranged in the hydrolysis high-pressure tank body, one end of the hot dry air injection pipe is communicated with the hot dry air inlet pipe, the other end of the hot dry air injection pipe is arranged in a zigzag shape as shown in figure 1, and a plurality of through holes are uniformly distributed on the pipe wall of the hot dry air injection pipe; be provided with in the bottommost of the round bottom of the high-pressure jar of hydrolysising body the hydrolysis tank bin outlet, hydrolysis tank discharge tube with hydrolysis tank bin outlet intercommunication, and be provided with the switching valve on hydrolysis tank discharge tube, be provided with at the lateral part of the round bottom of the high-pressure jar of hydrolysising body hydrolysis tank play water filter plate, hydrolysis tank play water filter plate is the through hole board of densely covered.
As shown in fig. 1, an air inlet fan 111 is provided at an inlet of the air heating chamber.
As shown in fig. 1, the sewage treatment component comprises a filtering chamber, an aeration chamber and an adsorption chamber, wherein the filtering chamber comprises a sewage inlet pipe, a sewage inlet valve 201, a filtering chamber inlet 202, a first filtering plate 203 and a filtering chamber water outlet 204; the inlet of the filter chamber is arranged at the top end of one side wall of the filter chamber, the right end of the sewage inlet pipe is communicated with the inside of the hydrolysis high-pressure tank body through a water outlet filter plate of the hydrolysis tank, the left end of the sewage inlet pipe is communicated with the inlet of the filter chamber, a water outlet of the filter chamber is arranged on the bottom wall of the filter chamber on the side (left side) opposite to the inlet of the filter chamber, and the first filter plate is vertically or obliquely arranged between the inlet of the filter chamber; the aeration chamber comprises an aeration cavity 205, an aeration port 206, an aeration air inlet pipe 207, an aeration chamber exhaust pipe 208, an aeration chamber water inlet 209, an aeration chamber water outlet 210, an aeration chamber water outlet pipe and an aeration chamber filter residue bag 211; the aeration chamber is arranged at the bottommost part of the aeration chamber, aeration ports are uniformly distributed on the top wall of the aeration chamber, the bottom wall of the aeration chamber is communicated with the aeration air inlet pipe, a pressurization air pump is arranged on the aeration air inlet pipe, a water inlet of the aeration chamber is arranged on the top wall of the aeration chamber and is communicated with a water outlet of the filter chamber, an exhaust pipe of the aeration chamber is also arranged on the top wall of the aeration chamber, and a water outlet of the aeration chamber is arranged on the side wall of the aeration chamber above the aeration chamber; the adsorption chamber 212 includes an adsorption chamber inlet, a second filter plate 213, an adsorption plate 214, and a treated water discharge port 215; the adsorption chamber entry sets up the lateral wall top at the adsorption chamber, the aeration chamber drain pipe runs through the adsorption chamber entry, aeration chamber drain pipe right-hand member and aeration chamber outlet intercommunication, left end cover are equipped with aeration chamber filter residue bag is provided with at the indoor slope of the adsorption of aeration chamber filter residue bag below second filter and adsorption plate, the adsorption plate is the mixture of both sides stainless steel perforated plate centre gripping quartz sand granule and active carbon granule, the treatment water discharge opening sets up the bottom at the lateral wall of adsorption chamber.
The grease box filter residue bag and the aeration chamber filter residue bag are both of a bag-shaped structure made of elastic fiber cloth.
The aeration air inlet pipe is communicated with the hydrolysis tank exhaust pipe.
The first filter plate, the second filter plate and the hydrolysis tank water outlet filter plate are all densely distributed through hole plates.
As shown in fig. 1, the treated water discharge port is provided with an open/close valve.
As shown in fig. 1, the sieving component includes a sieving chamber housing, a sieving chamber inlet 301, a sieving plate 302, a stirring shaft 303, a stirring blade 304, a stirring motor 305, an inorganic substance outlet 306, an inorganic substance temporary storage tank 307, an organic substance outlet 308 and an organic substance temporary storage tank 309; screening room pan feeding mouth set up on the lateral wall top of screening outdoor housing and with hydrolysis tank row material pipe intercommunication, at the inside horizontal screening board that has of screening outdoor housing, (mixing) shaft, the (mixing) shaft bottom is provided with stirring vane, stirring vane's rotation plane and screening board parallel and with screening board between clearance less than or equal to 10mm, agitator motor sets up on the outer roof of screening outdoor housing and through shaft coupling and agitator shaft connection and drive the rotation of (mixing) shaft, is provided with in the lateral wall department of meeting of screening board and screening outdoor housing the inorganic matter discharge gate, inorganic matter temporary storage box and inorganic matter discharge gate intercommunication are provided with the organic matter discharge gate on the diapire of screening outdoor housing, organic matter temporary storage box and organic matter discharge gate intercommunication.
Example 2
A kitchen waste hydrolysis treatment method is carried out by using the kitchen waste hydrolysis treatment device in embodiment 1, and specifically comprises the following steps:
1) the kitchen waste is thrown into the hydrolysis high-pressure tank body through the feeding port of the hydrolysis tank, the exhaust pipe of the hydrolysis tank is closed, the grease discharge port is closed, the inlet valve of the sewage is closed, the discharge port of the hydrolysis tank is closed, the hot dry air inlet is closed, when the material in the hydrolysis high-pressure tank body reaches 10% of the total volume, the hot dry air inlet is opened, the air temperature of the hot dry air is adjusted to 115 ℃, and the exhaust pipe of the hydrolysis tank is opened at the same time.
2) When the material in the hydrolysis high-pressure tank reaches 55% of the total volume, closing the exhaust pipe of the hydrolysis tank, increasing the temperature of hot dry air to 125 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.62MPa, keeping the pressure for 13min, opening the exhaust pipe of the hydrolysis tank to release the pressure to the normal pressure, adjusting the air temperature of the hot dry air to 55 ℃, after treating for 18min, closing the exhaust pipe of the hydrolysis tank again, adjusting the temperature of the hot dry air to 168 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.85MPa, keeping the pressure for 13min, opening the exhaust pipe of the hydrolysis tank to release the pressure to 0.55MPa, closing the exhaust pipe of the hydrolysis tank, adjusting the temperature of the hot dry air to 190 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.95MPa, and keeping the pressure and the temperature for 60 min.
3) Opening an exhaust pipe of the hydrolysis tank, closing a hot dry air inlet, releasing pressure to 0.23MPa, opening a grease discharge port, then opening a sewage inlet valve until the pressure in the hydrolysis high-pressure tank body is reduced to normal pressure and no sewage flows into a sewage inlet pipe, and closing the sewage inlet valve and the grease discharge port; the sewage enters the aeration chamber after being filtered through the first filter plate, the aeration air inlet pipe is opened, bubbles are discharged into the sewage through the aeration port, impurities in the sewage are carried by the bubbles to float to the surface of a water body to form foams, after 30min of aeration treatment, the water outlet of the aeration chamber is opened, the water enters the adsorption chamber through the filter residue bag of the aeration chamber, the foams are filtered by the filter residue bag of the aeration chamber, after the water is further subjected to impurity removal through the second filter plate, the water is further purified through the adsorption plate and then is discharged through the treated water discharge port. As shown in figure 1, the height of the grease outlet is 55% of the total volume of the hydrolysis high-pressure tank.
4) And opening a hot dry air inlet, and drying the materials for 38 min.
5) Closing an exhaust pipe of the hydrolysis tank, increasing the pressure in the hydrolysis high-pressure tank to 0.28MPa, opening a discharge port of the hydrolysis tank, discharging the materials into a screening chamber, starting a stirring shaft, stirring the materials on the upper part of a screening plate by a stirring blade and screening by the screening plate, discharging the materials on the plate, which are inorganic materials not subjected to hydrolysis and fragmentation, into an inorganic material temporary storage box through an inorganic material discharge port, and discharging the materials on the plate, which are organic materials subjected to hydrolysis and fragmentation, into an organic material temporary storage box through an organic material discharge port.
Claims (9)
1. A kitchen waste hydrolysis treatment device is characterized by comprising a hydrolysis high-pressure tank part, a sewage treatment part and a screening part;
the hydrolysis high-pressure tank component comprises a hydrolysis high-pressure tank body, a hydrolysis tank feeding opening, a hydrolysis tank exhaust pipe, an oil discharge opening, an oil discharge pipe, an oil tank filter residue bag, an oil temporary storage tank, a hot dry air inlet pipe, a hot dry air injection pipe, an air heating cavity, a hydrolysis tank discharge opening, a hydrolysis tank discharge pipe and a hydrolysis tank water outlet filter plate; the high-pressure jar of hydrolysising body is for the dome round bottom hollow cylinder structure of vertically putting, is provided with at the top of the high-pressure jar of hydrolysising body hydrolysis jar pan feeding mouth and hydrolysis jar blast pipe, is provided with the grease discharge port at the middle part of the lateral wall of the high-pressure jar of hydrolysising body, grease discharge pipe one end and grease discharge port intercommunication, another pot head are equipped with grease case filter residue bag, grease temporary storage case sets up in the outside of the high-pressure jar of hydrolysising body and wraps and establish in grease discharge pipe and grease case filter residue bag outside, hot dry air entry sets up in the lower part of the lateral wall of the high-pressure jar of hydrolysising body, hot dry air inlet tube one end and hot dry air entry intercommunication, the other end and the air heating chamber intercommunication that sets up in the high-pressure jar of hydrolysising body outside, the air heating chamber is used for, the hot dry air injection pipe is integrally arranged in the hydrolysis high-pressure tank body, one end of the hot dry air injection pipe is communicated with the hot dry air inlet pipe, the other end of the hot dry air injection pipe is arranged in a zigzag manner, and a plurality of through holes are uniformly distributed on the pipe wall of the hot dry air injection pipe; the bottom of the round bottom of the hydrolysis high-pressure tank body is provided with a discharge port of the hydrolysis tank, a discharge pipe of the hydrolysis tank is communicated with the discharge port of the hydrolysis tank, an opening-closing valve is arranged on the discharge pipe of the hydrolysis tank, the side part of the round bottom of the hydrolysis high-pressure tank body is provided with a water outlet filter plate of the hydrolysis tank, and the water outlet filter plate of the hydrolysis tank is a densely distributed through hole plate;
the sewage treatment component comprises a filtering chamber, an aeration chamber and an adsorption chamber, wherein the filtering chamber comprises a sewage inlet pipe, a sewage inlet valve, a filtering chamber inlet, a first filtering plate and a filtering chamber water outlet; the inlet of the filter chamber is arranged at the top end of one side wall of the filter chamber, one end of the sewage inlet pipe is communicated with the inside of the hydrolysis high-pressure tank body through the water outlet filter plate of the hydrolysis tank, the other end of the sewage inlet pipe is communicated with the inlet of the filter chamber, a water outlet of the filter chamber is arranged on the side wall or the bottom wall of the filter chamber opposite to the inlet of the filter chamber, and the first filter plate is vertically or obliquely arranged between the inlet of the filter chamber and the; the aeration chamber comprises an aeration cavity, an aeration opening, an aeration air inlet pipe, an aeration chamber exhaust pipe, an aeration chamber water inlet, an aeration chamber water outlet, an aeration chamber drain pipe and an aeration chamber filter residue bag; the aeration chamber is arranged at the bottommost part of the aeration chamber, aeration ports are uniformly distributed on the top wall of the aeration chamber, the bottom wall of the aeration chamber is communicated with the aeration air inlet pipe, a pressurization air pump is arranged on the aeration air inlet pipe, a water inlet of the aeration chamber is arranged on the top wall of the aeration chamber and is communicated with a water outlet of the filter chamber, an exhaust pipe of the aeration chamber is also arranged on the top wall of the aeration chamber, and a water outlet of the aeration chamber is arranged on the side wall of the aeration chamber above the aeration chamber; the adsorption chamber comprises an adsorption chamber inlet, a second filter plate, an adsorption plate and a treated water discharge port; the adsorption chamber inlet is arranged at the top end of the side wall of the adsorption chamber, the aeration chamber drain pipe penetrates through the adsorption chamber inlet, one end of the aeration chamber drain pipe is communicated with the aeration chamber drain outlet, the other end of the aeration chamber drain pipe is sleeved with the aeration chamber filter residue bag, the second filter plate and the adsorption plate are transversely or obliquely arranged in the adsorption chamber below the aeration chamber filter residue bag, the adsorption plate is a mixture of quartz sand particles and active carbon particles clamped between stainless steel porous plates on two sides, and the treated water discharge port is arranged at the bottom wall or the bottom end of the side wall of the adsorption chamber;
the screening component comprises a screening chamber shell, a screening chamber feeding port, a screening plate, a stirring shaft, stirring blades, a stirring motor, an inorganic matter discharging port, an inorganic matter temporary storage box, an organic matter discharging port and an organic matter temporary storage box; screening room pan feeding mouth set up on the lateral wall top of screening outdoor housing and with hydrolysis tank row material pipe intercommunication, at the inside horizontal screening board that has of screening outdoor housing, (mixing) shaft, the (mixing) shaft bottom is provided with stirring vane, stirring vane's rotation plane and screening board parallel and with screening board between clearance less than or equal to 10mm, agitator motor sets up on the outer roof of screening outdoor housing and through shaft coupling and agitator shaft connection and drive the rotation of (mixing) shaft, is provided with in the lateral wall department of meeting of screening board and screening outdoor housing the inorganic matter discharge gate, inorganic matter temporary storage box and inorganic matter discharge gate intercommunication are provided with the organic matter discharge gate on the diapire of screening outdoor housing, organic matter temporary storage box and organic matter discharge gate intercommunication.
2. A kitchen waste hydrolysis treatment method is characterized in that the treatment method is carried out by using the kitchen waste hydrolysis treatment device of claim 1, and specifically comprises the following steps:
1) putting the kitchen waste into a hydrolysis high-pressure tank body through a feeding port of the hydrolysis tank, closing an exhaust pipe of the hydrolysis tank, closing a grease discharge port, closing a sewage inlet valve, closing a discharge port of the hydrolysis tank, closing a hot dry air inlet, opening the hot dry air inlet when the material in the hydrolysis high-pressure tank body reaches 10% of the total volume, adjusting the air temperature of the hot dry air to 110-120 ℃, and simultaneously opening the exhaust pipe of the hydrolysis tank;
2) when the total volume of the materials in the hydrolysis high-pressure tank reaches 50-60%, closing an exhaust pipe of the hydrolysis tank, increasing the temperature of hot dry air to 121-130 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.6-0.65 MPa, keeping the pressure for 10-15 min, opening the exhaust pipe of the hydrolysis tank to release the pressure to the normal pressure, adjusting the air temperature of the hot dry air to 50-60 ℃, treating for 15-20 min, closing the exhaust pipe of the hydrolysis tank again, adjusting the temperature of the hot dry air to 160-180 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.8-0.9 MPa, keeping the pressure for 10-15 min, opening the exhaust pipe of the hydrolysis tank to release the pressure to 0.5-0.6 MPa, closing the exhaust pipe of the hydrolysis tank, adjusting the temperature of the hot dry air to 180-195 ℃, increasing the pressure in the hydrolysis high-pressure tank to 0.9-1 MPa, and keeping the pressure and the temperature for 50-80 min;
3) opening an exhaust pipe of the hydrolysis tank, closing a hot dry air inlet, releasing pressure to 0.2-0.25 MPa, opening a grease discharge port, then opening a sewage inlet valve until the pressure in the hydrolysis high-pressure tank body is reduced to normal pressure and no sewage flows into the sewage inlet pipe, and closing the sewage inlet valve and the grease discharge port; the sewage enters an aeration chamber after being filtered by a first filter plate, an aeration air inlet pipe is opened, bubbles are discharged into the sewage through an aeration port, so that impurities in the sewage are carried by the bubbles to float on the surface of a water body to form foam, after 20-50 min of aeration treatment, a water outlet of the aeration chamber is opened, the water enters an adsorption chamber through a filter residue bag of the aeration chamber, the foam is filtered by the filter residue bag of the aeration chamber, and after the water is further filtered by a second filter plate to remove the impurities, the water is further purified by the adsorption plate and then is discharged through a treated water discharge port;
4) opening a hot dry air inlet, and drying the materials for 30-50 min;
5) closing an exhaust pipe of the hydrolysis tank, increasing the pressure in the hydrolysis high-pressure tank to 0.25-0.3 MPa, opening a discharge port of the hydrolysis tank, discharging the materials into a screening chamber, starting a stirring shaft, stirring the materials on the upper part of a screening plate by a stirring blade and screening by the screening plate, discharging the materials on the plate into an inorganic material temporary storage box through an inorganic material discharge port, and discharging the materials under the plate into an organic material temporary storage box through an organic material discharge port.
3. The kitchen waste hydrolysis treatment method according to claim 2, wherein the grease tank residue bag and the aeration chamber residue bag are both of a bag-shaped structure made of elastic fiber cloth.
4. The kitchen waste hydrolysis treatment method according to claim 2, characterized in that an air inlet fan is arranged at an inlet of the air heating cavity.
5. The kitchen waste hydrolysis treatment method according to claim 2, wherein the aeration gas inlet pipe is communicated with the hydrolysis tank exhaust pipe.
6. The method for hydrolytic treatment of kitchen waste according to claim 2, characterized in that the first filter plate, the second filter plate and the filter plate for water outlet of the hydrolysis tank are all densely distributed through-hole plates.
7. The kitchen waste hydrolysis treatment method according to claim 2, wherein the height of the grease outlet is 50-60% of the total volume of the hydrolysis high-pressure tank.
8. The method for hydrolytic treatment of kitchen waste according to claim 2, characterized in that the treated water discharge port is provided with an on-off valve.
9. The kitchen waste hydrolysis treatment method according to claim 2, characterized in that a lye addition box is provided on the top wall of the aeration chamber, and the lye addition box releases calcium hydroxide or sodium hydroxide solution to the aeration chamber.
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| DE19723510C1 (en) * | 1997-06-05 | 1999-02-18 | Atz Evus | Method and device for the treatment of biogenic residues |
| JP2003145098A (en) * | 2001-11-12 | 2003-05-20 | Shinyo Sangyo Kk | Wet process treating machine for fermentation decomposing organic waste utilizing waste water or seawater |
| CN204320784U (en) * | 2014-09-09 | 2015-05-13 | 陕西清扬环境科技有限公司 | One way of life refuse disposal installation |
| CN105080944B (en) * | 2015-09-30 | 2017-06-06 | 宜兴合一环保科技有限公司 | A kind of handling process of food waste kitchen garbage pollutant harmless treatment device |
| CN205518941U (en) * | 2016-01-28 | 2016-08-31 | 深圳市科恩环保有限公司 | Organic matter rubbish hydrolysis unit |
| CN109647860B (en) * | 2019-01-07 | 2020-11-17 | 蚌埠新业环境服务有限公司 | Domestic waste centralized processing device |
| CN109821864B (en) * | 2019-04-04 | 2021-07-27 | 四川深蓝环保科技有限公司 | Pretreatment system and method for kitchen waste |
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