Kitchen waste short-process resourceful treatment assembly

Abstract

The invention relates to a kitchen waste short-process resourceful treatment assembly which comprises a hydrolysis tank, a hydrolysis tank equipment shell is arranged on the outer side of the hydrolysis tank, a hydrolysis tank feed opening is formed in the lower end of the hydrolysis tank, an anaerobic reactor is fixedly connected to the lower end of the hydrolysis tank feed opening, an anaerobic reactor equipment shell is arranged on the outer side of the anaerobic reactor, and a feed opening is formed in the lower end of the anaerobic reactor equipment shell. The device has the advantages that a heat closed circulation system is formed, the efficiency of subsequent precipitation separation is guaranteed, hydrolysate is autonomously processed to serve as a supplementary carbon source, the production period efficiency is improved, and short-process resourceful treatment of kitchen waste is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of resource utilization of kitchen waste, and particularly to a short-process resource utilization treatment component for kitchen waste. Background Art

[0002] In recent years, with the acceleration of the urbanization process and the expansion of the scale of the catering industry, the annual output of kitchen waste in China has exceeded 50 million tons. This kind of waste is characterized by high moisture content (70%-90%), high oil content (15%-30%) and high salt content. Traditional landfill and incineration treatments are likely to cause problems such as leachate pollution, greenhouse gas emissions and resource waste. Therefore, the resource utilization technology has become the core direction to solve the contradiction between the environment and the economy.

[0003] Patent No. CN201611237782.6 discloses a kitchen waste treatment and conversion system, which relates to the field of kitchen waste treatment. It includes a kitchen waste pretreatment device and a kitchen waste conveying device. The kitchen waste pretreatment device is connected to a cockroach breeding and conversion device through the kitchen waste conveying device. The cockroach breeding and conversion device includes a cockroach breeding and conversion rack and a feeding device. The feeding device is connected to the kitchen waste conveying device and is installed on the side of the cockroach breeding and conversion rack. The present invention uses cockroaches to treat kitchen waste. By using a mechanized breeding device to breed cockroaches with kitchen waste, it can not only meet the breeding requirements of cockroaches to breed cockroaches efficiently and at low cost to obtain protein feed, but also completely treat kitchen waste. It has good economic benefits and can also solve the problem of difficult treatment of kitchen waste, and has excellent environmental protection benefits. However, this device has the following problems: First, the resource utilization treatment of kitchen waste by this device is complicated and not efficient and short-process. Secondly, this device cannot achieve preheating recovery and cannot accelerate decomposition by self-supplementing carbon sources. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art. By fixedly connecting the hydrolysis tank discharge port to the anaerobic reactor to directly input the hydrolyzed and acidified kitchen waste into the anaerobic reactor, first using the precipitation in the anaerobic reactor and then performing the operation of anaerobic methane production, the anaerobic reactor has other functions in addition to anaerobic digestion, and directly performs resource utilization without adding other operations, making its treatment efficient and simplified to form a short-process resource utilization, solving the technical problem that the resource utilization treatment of kitchen waste by this device is complicated and not efficient and short-process. By setting up a siphon pipe in cooperation with the hydrolysis liquid concentration tank, and by connecting the jacketed heat exchanger on the outer wall of the hydrolysis tank and the heat exchange coil on the outer wall of the anaerobic reactor through a return pipe and a heat medium delivery pipe, the technical problems that this device cannot achieve preheating recovery and cannot accelerate decomposition by self-supplementing carbon sources are solved.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A short - process resource - treatment component for kitchen waste, including a hydrolysis tank. A hydrolysis - tank equipment shell is arranged outside the hydrolysis tank. A hydrolysis - tank discharge opening is arranged at the lower end of the hydrolysis tank. The lower end of the hydrolysis - tank discharge opening is fixedly connected to an anaerobic reactor. An anaerobic - reactor equipment shell is arranged outside the anaerobic reactor. A hydrolysis - liquid concentration tank is arranged at the lower right end of the anaerobic - reactor equipment shell.

[0007] As an optimization, a heating coil is arranged on the inner wall of the hydrolysis tank. A heating element is arranged inside the heating coil. And a hydrolysis stirring motor is arranged at the center of the upper end of the hydrolysis tank. A rotating shaft is arranged at the center of the lower end of the hydrolysis stirring motor. Hydrolysis stirring vanes are evenly distributed on the outer side of the rotating shaft. The hydrolysis stirring vanes are located inside the hydrolysis tank. A slurry input port is arranged on the left side of the upper end of the hydrolysis tank. A water - pipe connection port is arranged at the center of the upper right side of the hydrolysis tank. A jacket - type heat - exchange tube is arranged on the whole outer wall of the hydrolysis tank. The jacket - type heat - exchange tube spirally winds downward around the outer wall of the hydrolysis tank. The lower left end of the jacket - type heat - exchange tube is flange - connected to a pipeline pump. The lower end of the pipeline pump is flange - connected to a heat - medium delivery pipe. The jacket - type heat - exchange tube is located inside the hydrolysis - tank equipment shell.

[0008] As an optimization, an ultrasonic generator is arranged at the center of the right end of the hydrolysis - tank equipment shell. The ultrasonic generator is electrically connected to an ultrasonic transducer. The ultrasonic transducer is fixed to the lower end of the inner wall of the hydrolysis tank and the number is not less than four.

[0009] As an optimization, a first pneumatic butterfly valve is arranged at the contact position between the hydrolysis - tank discharge opening and the bottom of the hydrolysis tank.

[0010] As an optimization, an anaerobic stirring motor is arranged at the center of the upper end of the anaerobic reactor. A transmission shaft is arranged at the center of the lower end of the anaerobic stirring motor. Anaerobic stirring vanes are evenly distributed on the outer side of the transmission shaft. The anaerobic stirring vanes are located inside the anaerobic reactor. A biogas collection pipe is arranged on the left side of the upper end of the anaerobic reactor. The left side of the biogas collection pipe is flange - connected to a biogas collection box. The left side of the biogas collection box is flange - connected to a delivery pipe. The left side of the delivery pipe is connected to a gas - collecting chamber. And a bacteria - inoculation port is arranged at the front side of the upper end of the anaerobic reactor. A slag - discharging port is arranged at the lower end of the anaerobic reactor. A second pneumatic butterfly valve is arranged at the contact position between the slag - discharging port and the bottom of the anaerobic reactor.

[0011] As an optimization, a heat - exchange coil is arranged on the outer wall of the anaerobic reactor. A return pipe is arranged at the rear end of the upper left side of the heat - exchange coil. A return pump is flange - connected at the central position of the return pipe. And the heat - exchange coil is located inside the anaerobic - reactor equipment shell.

[0012] As an optimization, the upper end of the return pipe is flange - connected to the lower left end of the jacket - type heat - exchange tube. The lower end of the heat - medium delivery pipe is flange - connected to the upper end of the heat - exchange coil. The return pipe and the heat - medium delivery pipe are arranged adjacent to each other.

[0013] As a preference, a tank body is provided outside the hydrolysis liquid concentration tank. A fixing frame is sleeved outside the lower end of the tank body. An electric heating coil is provided on the inner wall of the tank body. A condensation coil is provided at the upper end inside the tank body. The condensation coil is arranged above the electric heating coil. A discharge port is provided at the lower end of the tank body. The discharge port is flange-connected to a pneumatic discharge valve. The right side of the pneumatic discharge valve is flange-connected to a concentrated liquid conveying pipe. A liquid extraction pump is provided at the center of the lower end of the concentrated liquid conveying pipe.

[0014] As a preference, the left lower end of the upper end of the concentrated liquid conveying pipe is fixedly connected to the right upper end of the anaerobic reactor.

[0015] As another preference, the center of the right end of the anaerobic reactor is flange-connected to a siphon pipeline. The lower right side of the siphon pipeline is flange-connected to the hydrolysis liquid concentration tank. A third pneumatic butterfly valve is provided at the contact position between the siphon pipeline and the hydrolysis liquid concentration tank. And a lower elbow is provided on the left side of the siphon pipeline. The lower elbow is located inside the anaerobic reactor.

[0016] The beneficial effects of the present invention:

[0017] (1) In the present invention, by arranging a jacketed heat exchange tube to connect a pipeline pump, and the pipeline pump is flange-connected to a heat medium conveying pipe. When heating and hydrolyzing and acidifying the pretreated kitchen waste slurry inside the hydrolysis tank, the heat medium inside the jacketed heat exchange tube will receive heat and become hot. After the heat medium becomes hot, it will be transported by the pipeline pump through the heat medium conveying pipe to the heat exchange coil on the outer wall of the anaerobic reactor to perform preheating treatment on the anaerobic reactor. The preheating treatment can cause the slurry particles to swell through the thermal effect, reduce the binding strength between them and the fibers, so that it is easier to separate from the fiber surface, improving the precipitation separation efficiency of the subsequent hydrolyzed slurry. Then, after the heat medium preheats the anaerobic reactor, it becomes cold and returns to the jacketed heat exchange tube through the reflux pump via the reflux pipe, repeating this process to form a closed heat cycle system, which can also ensure the efficiency of subsequent precipitation separation.

[0018] (2) In the present invention, after the hydrolyzed and acidified slurry is put into the anaerobic reactor and precipitated, a stratification phenomenon occurs. The upper layer is the hydrolyzate and the lower layer is the precipitate. At the same time, when the anaerobic reactor is used as a sedimentation tank, after preheating, the efficiency of sediment separation is improved and more efficient. When the liquid level of the hydrolyzate reaches the height of the lower elbow of the siphon pipe, the No. 3 pneumatic butterfly valve automatically opens, and the hydrolyzate is introduced into the concentration tank through the siphon effect. Then, the electric heating coil heats and concentrates the hydrolyzate. Steam is generated when the hydrolyzate is heated in the hydrolyzate concentration tank. The steam rises and touches the condensation coil, and the evaporated gaseous solvent is condensed and recovered, and is transported to the external device through the condensate delivery pipe. The concentrated hydrolyzate will remain at the bottom of the hydrolyzate concentration tank. The concentrated hydrolyzate will be refluxed into the anaerobic reactor again through the concentrated liquid delivery pipe during the anaerobic reaction in the anaerobic reactor and act as a supplementary carbon source. The reuse of the concentrated hydrolyzate reduces the dependence on external carbon sources and improves the gas production efficiency.

[0019] (3) In the present invention, the pretreated kitchen waste slurry is hydrolyzed and acidified. The ultrasonic transducer is located at the bottom of the hydrolysis tank and together with the heating coil assists in hydrolysis to accelerate the hydrolysis efficiency. The heat is used for preheating when the anaerobic reactor is used as a sedimentation tank. Then, the hydrolyzed and acidified slurry is put into the anaerobic reactor for hydrolysis material precipitation operation, and then the anaerobic reactor is used as the main body for anaerobic treatment. At the same time, the hydrolyzed and concentrated liquid is refluxed into the anaerobic reactor as a supplementary carbon source. No additional steps are required. Only three devices can quickly convert kitchen waste into valuable resources, integrating the functions of hydrolysis, precipitation, gas production, concentration and reflux, greatly shortening the treatment cycle, realizing the short-process resource treatment of kitchen waste, and greatly shortening the cycle of traditional composting or landfilling.

[0020] In summary, the device has the advantages of forming a closed heat cycle system, ensuring the efficiency of subsequent sediment separation, independently processing the hydrolyzate as a supplementary carbon source to improve the production efficiency, and realizing the short-process resource treatment of kitchen waste, and is particularly suitable for the technical field of kitchen waste resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the hydrolysis tank in the present invention.

[0024] Figure 3Schematic diagram of the installation position of the ultrasonic generator in the present invention.

[0025] Figure 4 Schematic diagram of the structure of the anaerobic reactor in the present invention.

[0026] Figure 5 Schematic diagram of the installation of the heat exchange coil, return pipe, and heat medium delivery pipe in the present invention.

[0027] Figure 6 Schematic diagram of the structure of the hydrolyzate concentration tank in the present invention.

[0028] Figure 7 Schematic diagram of the internal structure of the hydrolyzate concentration tank in the present invention. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0030] Embodiment 1

[0031] As Figures 1 to 7 shown, the present invention provides a short-process resource treatment component for kitchen waste, including a hydrolysis tank 1. An equipment shell 12 of the hydrolysis tank is arranged outside the hydrolysis tank 1. A material discharge port 13 of the hydrolysis tank is arranged at the lower end of the hydrolysis tank 1. The lower end of the material discharge port 13 of the hydrolysis tank is fixedly connected to an anaerobic reactor 2. An equipment shell 21 of the anaerobic reactor is arranged outside the anaerobic reactor 2. A hydrolyzate concentration tank 3 is arranged at the lower right end of the equipment shell 21 of the anaerobic reactor.

[0032] Furthermore, a heating coil is provided on the inner wall of the hydrolysis tank 1, and a heating element is provided inside the heating coil to heat and accelerate the hydrolysis process during hydrolysis acidification. A hydrolysis stirring motor 14 is provided at the center of the upper end of the hydrolysis tank 1. A rotating shaft is provided at the center of the lower end of the hydrolysis stirring motor 14. Hydrolysis stirring vanes are evenly distributed on the outer side of the rotating shaft. The hydrolysis stirring vanes will rotate along with the rotating shaft driven by the hydrolysis stirring motor 14 to stir the slurry and accelerate the hydrolysis acidification reaction. The hydrolysis stirring vanes are located inside the hydrolysis tank 1. A slurry input port 15 is provided on the left side of the upper end of the hydrolysis tank 1. A sealing door is hinged to the upper end of the slurry input port 15. The slurry before hydrolysis acidification has removed grease and solid impurities through three-phase separation and then been broken to form a slurry, which is put into the slurry input port 15. A water pipe connection port 16 is provided at the center of the right side of the upper end of the hydrolysis tank 1. The water pipe connection port 16 can be threadedly connected to a water pipe, and the water pipe adds water into the hydrolysis tank 1 for hydrolysis acidification reaction. The overall outer wall of the hydrolysis tank 1 is provided with a jacketed heat exchange pipe 17. A flowing heat medium is provided inside the jacketed heat exchange pipe 17, and the heat medium is water. The jacketed heat exchange pipe 17 spirally winds downward around the outer wall of the hydrolysis tank 1. The left lower end of the jacketed heat exchange pipe 17 is flange-connected to a pipeline pump 171. Based on the action of centrifugal force, when the motor starts, the pipeline pump 171 drives the impeller to rotate at a high speed. The liquid in the impeller is thrown towards the outer edge of the impeller under the action of centrifugal force to form a high-pressure area. Through the guiding action of the pump shell, the kinetic energy of the liquid is converted into pressure energy, and finally it is transported to the target position through the outlet pipeline. The lower end of the pipeline pump 171 is flange-connected to a heat medium delivery pipe 5. The jacketed heat exchange pipe 17 is located inside the hydrolysis tank equipment shell 12.

[0033] Furthermore, an ultrasonic generator 121 is provided at the center of the right end of the hydrolysis tank equipment shell 12. The ultrasonic generator 121 is electrically connected to an ultrasonic transducer. The ultrasonic transducers are fixed to the lower end of the inner wall of the hydrolysis tank 1 and there are no less than 4 of them. The ultrasonic transducers are located at the bottom of the hydrolysis tank and assist hydrolysis together with the heating coil to accelerate the hydrolysis efficiency.

[0034] Furthermore, a first pneumatic butterfly valve 18 is provided at the contact position between the hydrolysis tank discharge port 13 and the bottom of the hydrolysis tank 1. One of the core components of the first pneumatic butterfly valve 18 is a pneumatic actuator, which uses compressed air as a power source. When the pneumatic actuator receives a control signal, it will drive the valve stem to rotate, and then drive the butterfly plate to rotate in the pipeline. The pneumatic actuator runs at a fast speed and is not easy to get stuck or damaged during the execution process. At the same time, it can also ensure the sealing performance.

[0035] Further, an anaerobic stirring motor 22 is provided at the center of the upper end of the anaerobic reactor 2. A transmission shaft is provided at the center of the lower end of the anaerobic stirring motor 22. Anaerobic stirring fins are evenly distributed on the outer side of the transmission shaft. The anaerobic stirring fins are located inside the anaerobic reactor 2. The anaerobic stirring fins will rotate along with the transmission shaft driven by the anaerobic stirring motor 22 to stir the slurry, accelerating the anaerobic reaction. When the anaerobic reactor 2 is used as a sedimentation tank, the anaerobic stirring motor 22 will not start, and the inside of the anaerobic reactor 2 will remain static. Stirring is started during the gas production stage. A biogas collection pipe 24 is provided on the left side of the upper end of the anaerobic reactor 2. The left side of the biogas collection pipe 24 is flange-connected to a biogas collection tank 6. During the anaerobic reaction process, microorganisms decompose organic matter to produce biogas, and the gas gradually accumulates to form a pressure difference inside the tank. The biogas collection pipe 24 guides the biogas to flow in a specific direction through the pressure difference and collects it into the biogas collection tank 6. At the same time, the biogas collection pipe 24 quickly discharges the produced gas to prevent the gas from leaking back or the structure from rupturing due to excessive pressure inside the tank, thus destroying the anaerobic conditions. At the same time, the sealing structure of the anaerobic reactor 2 physically isolates the entry of external oxygen and maintains an anaerobic state inside. The left side of the biogas collection tank 6 is flange-connected to a delivery pipe, and the left side of the delivery pipe is connected to a gas collection chamber. The biogas collection tank 6 will uniformly transport the biogas to the gas collection chamber through the delivery pipe for purification treatment. A bacteria inoculation port 23 is provided on the front side of the upper end of the anaerobic reactor 2. The bacteria inoculation port 23 is provided with a sealing door. By closing the sealing door after inoculating anaerobic bacteria, the anaerobic environment inside the anaerobic reactor 2 can be ensured. A slag discharge port 25 is provided at the lower end of the anaerobic reactor 2. A second pneumatic butterfly valve 251 is provided at the position where the slag discharge port 25 contacts the bottom of the anaerobic reactor 2. The second pneumatic butterfly valve 251 has the same structural principle as the first pneumatic butterfly valve 18, and can ensure the sealing performance inside the anaerobic reactor 2 when slag discharge is not required.

[0036] Further, a heat exchange coil 26 is provided on the outer wall of the anaerobic reactor 2. A return pipe 27 is provided at the rear end of the left side of the upper end of the heat exchange coil 26. A return pump 271 is flange-connected to the central position of the return pipe 27. And the heat exchange coil 26 is located inside the equipment shell 21 of the anaerobic reactor.

[0037] Furthermore, the upper end of the reflux pipe 27 is flange-connected to the lower left end of the jacketed heat exchange pipe 17, the lower end of the heat medium delivery pipe 5 is flange-connected to the upper end of the heat exchange coil 26, and the reflux pipe 27 and the heat medium delivery pipe 5 are arranged adjacent to each other. When the kitchen waste slurry pretreated by heating hydrolysis and acidification is carried out inside the hydrolysis tank 1, the heat medium inside the jacketed heat exchange pipe 17 will receive heat and become hot. After the heat medium becomes hot, the heat medium will be pumped through the heat medium delivery pipe 5 by the pipeline pump 171 to the heat exchange coil 26 on the outer wall of the anaerobic reactor 2 to preheat the anaerobic reactor 2. The preheating treatment can cause the slurry particles to swell through the thermal effect, reduce their bonding strength with the fibers, and thus be more easily detached from the fiber surface, improving the precipitation separation efficiency of the subsequent hydrolyzed slurry. Then, after preheating the anaerobic reactor 2, the heat medium cools down and returns to the jacketed heat exchange pipe 17 through the reflux pump 271 via the reflux pipe 27. This process repeats to form a closed heat cycle system, which can also ensure the efficiency of subsequent precipitation separation.

[0038] Furthermore, a tank body 33 is provided outside the hydrolysis liquid concentrator 3. A fixing frame 35 is sleeved on the outer side of the lower end of the tank body 33. An electric heating coil 332 is provided on the inner wall of the tank body 33. A condensation coil 331 is provided at the upper end inside the tank body 33. The upper end of the condensation coil 331 is threadedly connected to a condensate delivery pipe. The condensation coil 331 is arranged above the electric heating coil 332. A discharge port is provided at the lower end of the tank body 33. The discharge port is flange-connected to a pneumatic discharge valve 34. The pneumatic discharge valve 34 maintains the tightness inside the hydrolysis concentrator 3 when the hydrolyzed concentrated liquid is not discharged. The right side of the pneumatic discharge valve 34 is flange-connected to a concentrated liquid delivery pipe 36. A liquid extraction pump 361 is provided at the center of the lower end of the concentrated liquid delivery pipe 36. Steam is generated by heating the hydrolyzed liquid inside the hydrolysis liquid concentrator 3. The steam rises and touches the condensation coil 33, and the evaporated gaseous solvent is condensed and recovered, and is transported to an external device through the condensate delivery pipe. The concentrated hydrolyzed liquid will remain at the bottom of the hydrolysis liquid concentrator 3. The concentrated hydrolyzed liquid will flow back into the anaerobic reactor 2 again through the concentrated liquid delivery pipe 36 as a supplementary carbon source during the anaerobic reaction in the anaerobic reactor 2, improving the gas production efficiency.

[0039] Furthermore, the lower left end of the upper end of the concentrated liquid delivery pipe 36 is fixedly connected to the upper right side of the anaerobic reactor 2.

[0040] Furthermore, the center flange at the right end of the anaerobic reactor 2 is connected to a siphon pipe 4. The lower right flange of the siphon pipe 4 is connected to a hydrolysis liquid concentrator 3. A third pneumatic butterfly valve 41 is provided at the contact position between the siphon pipe 4 and the hydrolysis liquid concentrator 3. The third pneumatic butterfly valve 41 has the same structure as the first pneumatic butterfly valve 18 and the second pneumatic butterfly valve 251. A lower elbow is provided on the left side of the siphon pipe 4, and the lower elbow is located inside the anaerobic reactor 2. After the hydrolyzed and acidified slurry is put into the anaerobic reactor 2 and precipitates, a layering phenomenon occurs. The upper layer is the hydrolysis liquid, and the lower layer is the precipitate. At the same time, when the anaerobic reactor 2 is used as a sedimentation tank, after preheating, the sedimentation separation efficiency is improved and more efficient. After the hydrolysis liquid is separated, the third pneumatic butterfly valve 41 will open. The lower elbow of the siphon pipe 4 is located at the position of the hydrolysis liquid level and immersed in the hydrolysis liquid, and the hydrolysis liquid will be siphoned into the hydrolysis liquid concentrator 3.

[0041] Working process: First, put the pretreated slurry into the slurry inlet 15, and then put the hydrolysis bacteria through the slurry inlet 15. Close the sealing door of the slurry inlet 15. Then, the water pipe connection port 16 adds water into the hydrolysis tank 1 through a water pipe for hydrolysis and acidification reaction. When heating and hydrolyzing and acidifying the pretreated kitchen waste slurry inside the hydrolysis tank 1, the heat medium inside the jacketed heat exchange pipe 17 will receive heat and become hot. After the heat medium becomes hot, it will pump the heat medium through the heat medium delivery pipe 5 to the heat exchange coil 26 on the outer wall of the anaerobic reactor 2 through the pipeline pump 171 to preheat the anaerobic reactor 2. The preheating treatment can cause the slurry particles to swell through the thermal effect, reduce their bonding strength with the fibers, and thus be more easily detached from the fiber surface, improving the subsequent sedimentation separation efficiency of the hydrolyzed slurry. Then, after the heat medium preheats the anaerobic reactor 2 and cools down, it returns to the jacketed heat exchange pipe 17 through the reflux pump 271 and the return pipe 27, repeating this process to form a closed heat cycle system, which can also ensure the subsequent sedimentation separation efficiency. When the hydrolyzed and acidified slurry is put into the anaerobic reactor 2 and precipitates, a layering phenomenon occurs. The upper layer is the hydrolysis liquid, and the lower layer is the precipitate. At the same time, when the anaerobic reactor 2 is used as a sedimentation tank, after preheating, the sedimentation separation efficiency is improved and more efficient. After the hydrolysis liquid is separated, the third pneumatic butterfly valve 41 will open. The lower elbow of the siphon pipe 4 is located at the position of the hydrolysis liquid level and immersed in the hydrolysis liquid, and the hydrolysis liquid will be siphoned into the hydrolysis liquid concentrator 3. Then, the electric heating coil 332 heats and concentrates the hydrolysis liquid. The steam generated by heating the hydrolysis liquid in the hydrolysis liquid concentrator 3 rises and touches the condensation coil 331, and the evaporated gaseous solvent is condensed and recovered, and is transported to an external device through the condensate delivery pipe. The concentrated hydrolysis liquid will remain at the bottom of the hydrolysis liquid concentrator 3. The concentrated hydrolysis liquid will be refluxed into the anaerobic reactor 2 again through the concentrated liquid delivery pipe during the anaerobic reaction in the anaerobic reactor 2 to act as a supplementary carbon source, improving the gas production efficiency.

[0042] Secondly, the pretreated kitchen waste slurry is subjected to hydrolysis acidification. The ultrasonic transducer is located at the bottom of the hydrolysis tank 1 and together with the heating coil assists in hydrolysis, which can accelerate the hydrolysis efficiency. The heat is used for preheating when the anaerobic reactor 2 is used as a sedimentation tank. Then the hydrolyzed acidified slurry is put into the anaerobic reactor 2 for the precipitation operation of hydrolyzed substances. Then the anaerobic reactor 2 is used as the main body for anaerobic treatment. At the same time, the hydrolyzed concentrated liquid is refluxed into the anaerobic reactor as a supplementary carbon source. No additional steps are required. Only three devices can quickly convert kitchen waste into valuable resources, realizing the short-process resource treatment of kitchen waste and greatly shortening the cycle of traditional composting or landfilling.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front and back", "left and right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the invention.

[0044] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0045] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art under the technical hint of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A short-process resource processing component for kitchen waste, characterized in that: The invention comprises a hydrolysis tank (1), wherein a hydrolysis tank equipment shell (12) is arranged outside the hydrolysis tank (1), a hydrolysis tank discharge port (13) is arranged at the lower end of the hydrolysis tank (1), the lower end of the hydrolysis tank discharge port (13) is fixedly connected to an anaerobic reactor (2), an anaerobic reactor equipment shell (21) is arranged outside the anaerobic reactor (2), and a hydrolyzate concentration tank (3) is arranged at the lower right end of the anaerobic reactor equipment shell (21).

2. A kitchen waste short-process resource processing component according to claim 1, characterized in that: The inner wall of the hydrolysis tank (1) is provided with a heating ring, and a heating element is provided inside the heating ring. A hydrolysis stirring motor (14) is provided at the center of the upper end of the hydrolysis tank (1). A rotating shaft is provided at the center of the lower end of the hydrolysis stirring motor (14). Hydrolysis stirring wings are evenly distributed outside the rotating shaft. The hydrolysis stirring wings are located inside the hydrolysis tank (1). A slurry input port (15) is provided at the left side of the upper end of the hydrolysis tank (1). A water pipe connection port (16) is provided at the center of the right side of the upper end of the hydrolysis tank (1). A jacketed heat exchange pipe (17) is provided on the entire outer wall of the hydrolysis tank (1). The jacketed heat exchange pipe (17) spirally surrounds the outer wall of the hydrolysis tank (1). The lower end of the left side of the jacketed heat exchange pipe (17) is flange-connected to a pipeline pump (171). The lower end of the pipeline pump (171) is flange-connected to a heat medium delivery pipe (5). The jacketed heat exchange pipe (17) is located inside the hydrolysis tank equipment shell (12).

3. A kitchen waste short-process resource processing component according to claim 1, characterized in that: An ultrasonic generator (121) is provided at the center of the right end of the hydrolysis tank equipment shell (12). The ultrasonic generator (121) is electrically connected to an ultrasonic transducer. The ultrasonic transducers are fixed to the lower end of the inner wall of the hydrolysis tank (1) and the number of the ultrasonic transducers is not less than four.

4. A kitchen waste short-process resource processing component according to claim 1, characterized in that: A pneumatic butterfly valve (18) is provided at the contact position between the hydrolysis tank discharge port (13) and the bottom of the hydrolysis tank (1).

5. A kitchen waste short-process resource processing component according to claim 1, characterized in that: An anaerobic stirring motor (22) is provided at the center of the upper end of the anaerobic reactor (2), a transmission shaft is provided at the center of the lower end of the anaerobic stirring motor (22), anaerobic stirring wings are evenly distributed on the outer side of the transmission shaft, and the anaerobic stirring wings are located inside the anaerobic reactor (2). A biogas collection pipe (24) is provided at the left side of the upper end of the anaerobic reactor (2), the left flange of the biogas collection pipe (24) is connected to the biogas collection box (6), the left flange of the biogas collection box (6) is connected to the conveying pipe, and the left side of the conveying pipe is connected to the gas collection chamber, and a bacteria injection port (23) is provided at the front side of the upper end of the anaerobic reactor (2), and a slag lowering port (25) is provided at the lower end of the anaerobic reactor (2), and a second pneumatic butterfly valve (251) is provided at the contact position between the slag lowering port (25) and the bottom of the anaerobic reactor (2).

6. A kitchen waste short-process resource processing component according to claim 1, characterized in that: The outer wall of the anaerobic reactor (2) is provided with a heat exchange coil (26), and a return pipe (27) is provided at the rear end of the upper left side of the heat exchange coil (26). The center position of the return pipe (27) is flange-connected to a return pump (271), and the heat exchange coil (26) is located inside the anaerobic reactor equipment shell (21).

7. A kitchen waste short-process resource processing component according to claim 6, characterized in that: The upper end of the return pipe (27) is flange-connected to the lower end of the left side of the jacketed heat exchange pipe (17), the lower end of the heat medium delivery pipe (5) is flange-connected to the upper end of the heat exchange coil (26), and the return pipe (27) is arranged adjacent to the heat medium delivery pipe (5).

8. A kitchen waste short-process resource processing component according to claim 1, characterized in that: A tank body (33) is provided on the outside of the hydrolyzate concentration tank (3), a fixing frame (35) is sleeved on the outside of the lower end of the tank body (33), an electric heating ring (332) is provided on the inner wall of the tank body (33), a condensation ring (331) is provided on the upper end of the tank body (33), and the condensation ring (331) is arranged on the upper end of the electric heating ring (332), a discharge port is provided on the lower end of the tank body (33), the discharge port flange is connected to a pneumatic discharge valve (34), the right side flange of the pneumatic discharge valve (34) is connected to a concentrated liquid delivery pipe (36), and a liquid pump (361) is provided at the center of the lower end of the concentrated liquid delivery pipe (36).

9. A kitchen waste short-process resource processing component according to claim 8, characterized in that: The lower end of the upper left side of the concentrated liquid delivery pipe (36) is fixedly connected to the upper right side of the anaerobic reactor (2).

10. A kitchen waste short-process resource processing component according to claim 1, characterized in that: The center flange at the right end of the anaerobic reactor (2) is connected to a siphon pipe (4), and the lower flange at the right end of the siphon pipe (4) is connected to a hydrolyzate concentration tank (3). A No. 3 pneumatic butterfly valve (41) is provided at the contact position between the siphon pipe (4) and the hydrolyzate concentration tank (3), and a lower elbow is provided on the left side of the siphon pipe (4), and the lower elbow is located inside the anaerobic reactor (2).

Images