A hydrolysis device for treating kitchen waste and waste oil

Abstract

This application provides a hydrolysis device for treating kitchen waste and waste oil, relating to the technical field of kitchen waste treatment equipment. It includes a hydrolysis reactor, a spiral centrifuge, a hydrolysis acidification tank, and an anaerobic fermentation tank arranged sequentially. The spiral centrifuge includes a base, a drum, a spiral conveyor, a drive assembly, a support rod, an adjustment assembly, a connecting assembly, and an opening block. The drive assembly drives the drum and the spiral conveyor to rotate on the base. One end of the drum has a solid phase discharge port. The support rod is connected to the drum, the adjustment assembly is connected to the support rod, the connecting assembly is connected to the adjustment assembly, and the opening block is connected to the connecting assembly. The adjustment assembly moves the opening block through the connecting assembly, thereby adjusting the opening of the solid phase discharge port. This application enables the spiral centrifuge to discharge solid materials with a water content suitable for the hydrolysis acidification tank.

Description

Technical Field

[0001] This application relates to the technical field of kitchen waste treatment equipment, and in particular to a hydrolysis device for treating kitchen waste and waste oil. Background Technology

[0002] Food waste is household waste generated during daily consumption. It is characterized by its easy decomposition, foul odor, and ability to spread bacteria and viruses. Its main components include leftover rice and flour products, vegetables, animal and vegetable oils, and meat and bones. Chemically, it contains starch, cellulose, protein, lipids, and inorganic salts. Directly discharging food waste into the natural environment will cause serious pollution. However, the solid organic matter and oils in food waste have recycling value, therefore, food waste needs to be treated.

[0003] In the process of treating kitchen waste, the kitchen waste is first crushed and pre-treated before being fed into a hydrolysis reactor for wet hydrolysis. The material processed in the hydrolysis reactor is then fed into a spiral centrifuge to separate the solid material, grease, and water. Subsequently, the separated grease and water are collected separately, while the solid material is fed into a hydrolysis acidification tank for hydrolysis acidification treatment. The material processed in the hydrolysis acidification tank is then fed into an anaerobic digester for fermentation.

[0004] In related technologies, a spiral centrifuge generally includes a drive assembly, a rotating drum, and a spiral conveyor, with the spiral conveyor located inside the rotating drum. The rotating drum has a large end and a small end; the small end of the drum is equipped with a solid phase discharge port, while the large end is equipped with a heavy phase liquid discharge port and a light phase liquid discharge port. The drive assembly drives the rotating drum and the spiral conveyor to rotate in the same direction at a differential speed, causing the solid phase material to be discharged from the solid phase discharge port, water to be discharged from the heavy phase liquid discharge port, and grease to be discharged from the light phase liquid discharge port, thereby separating water, grease, and solid phase materials.

[0005] As the solid material moves towards the solid discharge outlet within the drum, a certain amount of water also flows towards the outlet, increasing the water content of the solid material. This combination of solid material and water entering the hydrolysis-acidification tank reduces the reaction concentration, affecting the hydrolysis-acidification reaction rate and subsequently the anaerobic fermentation rate. Conversely, if the water content of the solid material is too low, it can lead to uneven mixing and decreased mass transfer efficiency in subsequent reactions. Therefore, a spiral centrifuge is needed to discharge solid material with a water content suitable for the hydrolysis-acidification tank. Summary of the Invention

[0006] In order to enable the spiral centrifuge to discharge solid materials with a water content suitable for the hydrolysis acidification tank, this application provides a hydrolysis device for treating kitchen waste and waste oil.

[0007] This application provides a hydrolysis device for treating kitchen waste and waste oil, which adopts the following technical solution:

[0008] A hydrolysis device for treating kitchen waste and waste oil includes a hydrolysis reactor, a spiral centrifuge, a hydrolysis acidification tank and an anaerobic fermentation tank arranged in sequence.

[0009] The spiral centrifuge includes a base, a drum, a spiral conveyor, a drive assembly, a support rod, an adjustment assembly, a connecting assembly, and an opening block; the drive assembly drives the drum and the spiral conveyor to rotate on the base, and a solid phase discharge port is provided at one end of the drum;

[0010] The support rod is connected to the drum, the adjustment component is connected to the support rod, the connecting component is connected to the adjustment component, and the opening block is connected to the connecting component; the adjustment component drives the opening block to move through the connecting component, so that the opening block adjusts the opening of the solid phase outlet.

[0011] By adopting the above technical solution, a hydrolysis reactor, a spiral centrifuge, a hydrolysis acidification tank, and an anaerobic fermentation tank are sequentially arranged to treat kitchen waste. The regulating component moves the opening block via the connecting component, adjusting the opening of the solid discharge outlet. This adjusts the degree of aggregation of solid material at the small end of the drum, thereby regulating the water content of the discharged solid material and mitigating the problem of excessively high or low water content affecting the hydrolysis acidification and anaerobic fermentation rates. In some related technologies, a squeezing or dehydration mechanism is installed between the hydrolysis acidification tank and the spiral centrifuge to regulate the moisture content of the solid material. However, these mechanisms occupy a large volume and are costly. In this application, the regulating component, connecting component, and opening block are located within the spiral centrifuge, reducing volume occupation and simplifying the structure, thus lowering equipment costs.

[0012] Optionally, the adjustment assembly includes a support base, a sliding block, and a drive source; the support base is connected to the support rod, the sliding block is slidably connected to the support base, the connecting assembly is connected to the sliding block, and the drive source pushes the sliding block to slide.

[0013] By adopting the above technical solution, the driving source pushes the sliding block to slide on the support base, which in turn drives the connecting component and the opening block to move, thereby adjusting the opening of the solid phase discharge port so that the solid phase discharge port discharges solid material at an appropriate opening, thereby adjusting the water content of the discharged solid material.

[0014] Optionally, the connecting component includes an elastic element disposed between the sliding block and the opening block.

[0015] By adopting the above technical solution, the elastic element is set between the sliding block and the opening block. The elastic element allows the opening block to move after being subjected to a certain force, which can improve the situation of accidental blockage when solid materials encounter the opening block and improve the overall safety of the equipment.

[0016] Optionally, the elastic element includes a support tube, a connecting tube, and a spring; the support tube is connected to the sliding block, the connecting tube is slidably connected to the support tube, and the spring is connected to both the support tube and the connecting tube.

[0017] By adopting the above technical solution, when the solid material is discharged slowly from the solid discharge port or even accidentally blocked, the opening block is subjected to a certain force, and the opening block pushes the connecting pipe to slide along the support pipe, so that the opening block can be displaced to a certain extent, thereby improving the situation of accidental blockage and enhancing the overall safety of the equipment.

[0018] Optionally, the connecting assembly further includes a pressure sensor disposed between the sliding block and the opening block, the pressure sensor detecting the force on the opening block.

[0019] By adopting the above technical solution, the pressure sensor is set between the sliding block and the opening block to detect the force on the opening block. When the pressure value is high, the opening of the solid phase discharge port can be adjusted in time to improve the situation of solid material blocking the solid phase discharge port.

[0020] Optionally, the opening block is tapered from the side away from the drum to the side closer to the drum.

[0021] By adopting the above technical solution, the opening block gradually narrows from the side away from the drum to the side closer to the drum, which can reduce the deposition of solid material on the side of the opening block closer to the drum.

[0022] Optionally, a dredging component is connected to the opening block, the dredging component including a connecting rod and a lifting plate; the connecting rod is connected to the opening block and the lifting plate respectively, and the lifting plate extends into the solid phase discharge port; the adjusting component drives the dredging component to move, so that the lifting plate discharges the solid phase material in the drum from the solid phase discharge port.

[0023] By adopting the above technical solution, the adjustment component drives the unblocking component to move, so that the lifting plate discharges the solid material in the drum from the solid discharge port, reducing the occurrence of blockage.

[0024] Optionally, the unblocking assembly further includes a limiting rod connected to the connecting rod, the limiting rod being located on the side of the lifting plate away from the opening block; the lifting plate is hinged to the connecting rod, and the limiting rod limits the lifting plate.

[0025] By adopting the above technical solution, the limiting rod is connected to the connecting rod. The limiting rod is located on the side of the lifting plate away from the tilting block. The limiting rod limits the rotation angle of the lifting plate. When the lifting plate extends into the drum, it rotates due to resistance, which facilitates the insertion of the lifting plate into the blocked solid material. During the process of the lifting plate moving the solid material out of the drum, the lifting plate rotates under force until it abuts against the limiting rod, increasing the area and facilitating the removal of more solid material from the drum, thus clearing the blockage.

[0026] Optionally, a machine cover is connected to the machine base, and a retaining ring is connected to the machine cover. A slurry discharge chamber is formed between the retaining ring and the machine cover. The slurry discharge chamber is located outside the solid phase discharge port and is connected to the hydrolysis acidification tank. A scraper is connected to the support rod, and the scraper abuts against the inner wall of the slurry discharge chamber. A moisture sensor is connected to the scraper, and the moisture sensor is used to detect the moisture content of the solid phase material in the slurry discharge chamber.

[0027] By adopting the above technical solution, the slurry discharge chamber collects the solid material discharged from the solid discharge port and transports it to the hydrolysis acidification tank. A scraper abuts against the inner wall of the slurry discharge chamber, scraping off the solid material adhering to the inner wall. A moisture sensor detects the moisture content of the solid material in the slurry discharge chamber, providing feedback to facilitate adjustment of the opening of the solid discharge port by the opening block, ensuring that the solid material discharged from the solid discharge port has the appropriate water content for the hydrolysis acidification tank.

[0028] Optionally, a feeding and separating device is also included, which includes a fixed frame, a crusher, a separating filter screen, and a conveying auger; the crusher is connected to the fixed frame and has a feed inlet, and the separating filter screen is connected to the feed inlet of the crusher; the conveying auger is connected to both the crusher and the hydrolysis reactor, and the conveying auger transports the material in the crusher to the hydrolysis reactor.

[0029] By adopting the above technical solution, materials are fed into the feed inlet of the crusher, the separation filter screen separates and filters large-sized materials, the crusher crushes the materials, and then the conveying auger transports the crushed materials to the hydrolysis reactor. The crushed materials are conducive to the reaction.

[0030] In summary, this application includes at least one of the following beneficial effects:

[0031] 1. The drive source moves the sliding block, which in turn moves the opening block via the connecting component. This allows for adjustment of the opening of the solid discharge outlet, thereby precisely regulating the water content of the discharged solid material. This ensures that the water content of the solid material matches the requirements of the hydrolysis acidification tank, mitigating the problem of reduced reaction concentration in the hydrolysis acidification tank due to excessively high water content, which affects the hydrolysis acidification reaction rate and subsequent anaerobic fermentation rate. It also mitigates the problem of uneven mixing and decreased mass transfer efficiency due to excessively low water content, ensuring the normal operation of the hydrolysis acidification and anaerobic fermentation reactions.

[0032] 2. The pressure sensor can detect the squeezing pressure of the solid material on the opening block in real time. When the detected pressure value is high, it indicates that the discharge resistance of the solid material is large, which may easily cause the solid material to block the solid discharge outlet. At this time, the opening of the solid discharge outlet can be adjusted in time according to the feedback information of the pressure sensor, which can effectively improve the situation of solid material blocking the solid discharge outlet and ensure the normal operation of the spiral centrifuge.

[0033] 3. When solid material encounters an opening block and is accidentally blocked, the elastic element allows the opening block to move to a certain extent. The displacement of the opening block can alleviate the accidental blockage of solid material to a certain extent. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the hydrolysis equipment for treating kitchen waste and waste oil in Embodiment 1 of this application;

[0035] Figure 2 This is a schematic diagram of the overall structure of the spiral centrifuge in Embodiment 1 of this application;

[0036] Figure 3 This is a cross-sectional structural diagram of the drum, screw conveyor, and feed pipe of Embodiment 1 of this application;

[0037] Figure 4 yes Figure 2 A magnified structural diagram of part A in the middle;

[0038] Figure 5 This is a cross-sectional structural diagram of the adjustment component, connecting component, opening block, and unblocking component of Embodiment 1 of this application;

[0039] Figure 6 This is a cross-sectional structural diagram of the elastic element in Embodiment 1 of this application;

[0040] Figure 7 This is a schematic diagram of the overall structure of the hydrolysis equipment for treating kitchen waste and waste oil in Embodiment 2 of this application.

[0041] Explanation of reference numerals in the attached drawings: 1. Hydrolysis reactor; 11. Reactor body; 12. Heating assembly; 121. Thermal oil heater; 122. Oil pump; 123. Oil guide pipe; 2. Spiral centrifuge; 21. Base; 22. Drum; 221. Solid phase outlet; 23. Spiral conveyor; 231. Material distribution port; 24. Drive assembly; 241. Main drive source; 242. Secondary drive source; 25. Feed pipe; 26. Support rod; 27. Adjustment assembly; 271. Support base; 272. Sliding block; 273. Push drive source; 28. Connecting assembly; 281. Elastic element; 2811. Support pipe; 2812. Connecting pipe; 2813. Spring; 282. Pressure sensor; 29. ​​Unblocking assembly; 291. Connection. 1. Rod; 292. Lifting plate; 293. Limiting rod; 201. Opening block; 202. Scraper; 203. Moisture sensor; 204. Machine cover; 205. Retaining ring; 2051. Slurry discharge chamber; 3. Hydrolysis acidification tank; 31. Hydrolysis acidification tank body; 32. First conveying pipe; 33. First conveying pump; 34. Horizontal auger; 35. Vertical auger; 4. Anaerobic fermentation tank; 41. Anaerobic fermentation tank body; 42. Second conveying pipe; 43. Second conveying pump; 44. Waste collection box; 45. Sewage treatment tank; 46. Third conveying pipe; 47. Third conveying pump; 5. Oil storage tank; 6. Water storage tank; 7. Feeding and separation device; 71. Fixing frame; 72. Crusher; 73. Separation filter screen; 74. Conveying auger. Detailed Implementation

[0042] The following combination Figures 1 to 7 This application will be described in further detail.

[0043] Example 1:

[0044] Embodiment 1 of this application provides a hydrolysis device for treating kitchen waste and waste oil.

[0045] refer to Figure 1 The hydrolysis equipment for treating kitchen waste and waste oil includes a hydrolysis reactor 1, a spiral centrifuge 2, a hydrolysis acidification tank 3, an anaerobic fermentation tank 4, and a feeding and separation device 7, arranged sequentially. The feeding and separation device 7 includes a fixed frame 71, a crusher 72, a separation filter 73, and a conveying auger 74. The fixed frame 71 is fixedly connected to the ground, the crusher 72 is fixedly connected to the fixed frame 71, and the separation filter 73 is fixedly connected to the feed inlet of the crusher 72. The separation filter 73 can filter and separate large-sized materials. The separation filter 73 is made of ferromagnetic material and can adsorb metallic impurities in the kitchen waste, thereby protecting the crusher 72.

[0046] refer to Figure 1The hydrolysis reactor 1 includes a reactor body 11 and a heating component 12. The top of the reactor body 11 is provided with multiple filling ports. One end of the conveying auger 74 is connected to the crusher 72, and the other end of the conveying auger 74 is connected to one filling port of the reactor body 11. After the kitchen waste is crushed, it is put into the reactor body 11 through the filling port. Then, waste oil, mixed acid solution and water are added into the reactor body 11 through different filling ports.

[0047] refer to Figure 1 The heating assembly 12 includes a thermal oil furnace 121, an oil pump 122, and an oil guide pipe 123. The vessel body 11 has two layers spaced apart, forming a jacketed structure. Thermal oil is filled within the jacketed structure of the vessel body 11. Two oil guide pipes 123 are connected to both the jacketed structure of the vessel body 11 and the thermal oil furnace 121. The oil pump 122 is connected to one of the oil guide pipes 123, allowing the thermal oil to flow between the jacketed structure of the vessel body 11 and the thermal oil furnace 121. The thermal oil furnace 121 heats the thermal oil, providing the necessary heat for the wet hydrolysis reaction within the vessel body 11.

[0048] refer to Figure 2 and Figure 3 The spiral centrifuge 2 includes a base 21, a casing 204, a drum 22, a spiral conveyor 23, a drive assembly 24, and a feed pipe 25. The drum 22 is rotatably connected to the base 21, and the spiral conveyor 23 is located inside the drum 22 and rotatably connected to it. The drive assembly 24 includes a main drive source 241 and a secondary drive source 242. In this embodiment, both the main drive source 241 and the secondary drive source 242 are motors, and both are mounted on the base 21. The main drive source 241 drives the drum 22 to rotate, and the secondary drive source 242 drives the spiral conveyor 23 to rotate, thereby causing the drum 22 and the spiral conveyor 23 to rotate in the same direction but at different speeds.

[0049] refer to Figure 2 and Figure 3 One end of the feed pipe 25 is connected to the vessel body 11, and the other end of the feed pipe 25 passes into the screw conveyor 23. The screw conveyor 23 has multiple distribution ports 231. The material in the vessel body 11 enters the screw conveyor 23 through the feed pipe 25, and then enters the rotating drum 22 through the distribution ports 231. Under the action of centrifugal force, the material forms a solid phase material layer, a heavy phase liquid layer, and a light phase liquid layer in the rotating drum 22 from the outside to the inside. The two ends of the rotating drum 22 are the large end and the small end, respectively. The small end of the rotating drum 22 is a conical end, and the cross-sectional area of ​​the large end of the rotating drum 22 is larger than that of the small end. The small end of the rotating drum 22 has multiple solid phase discharge ports 221. Under the action of the rotating drum 22 and the screw conveyor 23, the solid phase material is discharged from the solid phase discharge ports 221.

[0050] refer to Figure 2 and Figure 3 Multiple heavy phase liquid outlets are provided on the outer wall of the large end of the drum 22, and multiple light phase liquid outlets are provided on the end wall of the large end of the drum 22. Water is discharged from the heavy phase liquid outlets and grease is discharged from the light phase liquid outlets.

[0051] refer to Figure 1 and Figure 2 A discharge pipe is connected to the bottom side of the base 21, and the discharge pipe is connected to the water storage tank 6. A discharge pump is installed on the discharge pipe. Water discharged from the heavy phase liquid outlet is collected and enters the discharge pipe. The discharge pump discharges the water from the discharge pipe into the water storage tank 6, and the water storage tank 6 collects the discharged water. The grease discharged from the light phase liquid outlet is collected and transported to the oil storage tank 5 through pipelines and a transfer pump for collection.

[0052] refer to Figure 2 and Figure 4 A cover 204 is hinged to the base 21, and the cover 204 covers the outside of the drum 22. A retaining ring 205 is fixedly connected to the inside of the cover 204, and the retaining ring 205 is rotatably connected to the drum 22. A slurry discharge chamber 2051 is formed between the retaining ring 205 and the end of the cover 204. The solid material and water are mixed to form a slurry, which is discharged from the solid discharge port 221 into the slurry discharge chamber 2051.

[0053] refer to Figure 2 and Figure 4 The spiral centrifuge 2 also includes a support rod 26, an adjustment assembly 27, a connecting assembly 28, and an opening block 201. The adjustment assembly 27 includes a support base 271, a sliding block 272, and a drive source 273. The support rod 26 is fixedly connected to the small end of the drum 22, the support base 271 is fixedly connected to the support rod 26, and the sliding block 272 is slidably connected to the support base 271. The drive source 273 is specifically an electric push rod. The body of the drive source 273 is fixedly connected to the support base 271, and the output end of the drive source 273 is fixedly connected to the sliding block 272. The drive source 273 can drive the sliding block 272 to move along the support base 271.

[0054] refer to Figure 5 and Figure 6 The spiral centrifuge 2 also includes a connecting assembly 28, which includes an elastic element 281 and a pressure sensor 282. The elastic element 281 includes a support tube 2811, a connecting tube 2812, and a spring 2813. The support tube 2811 is fixedly connected to a sliding block 272, and the connecting tube 2812 is inserted into and slidably disposed relative to the support tube 2811. The spring 2813 is fixedly connected to both the connecting tube 2812 and the support 271. The pressure sensor 282 is fixedly connected to the connecting tube 2812, and the opening block 201 is fixedly connected to the pressure sensor 282.

[0055] refer to Figure 5and Figure 6 The adjusting component 27 drives the connecting component 28 to move, and the connecting component 28 moves the opening block 201 closer to the solid discharge port 221, thereby adjusting the opening of the solid discharge port 221. Under the control of the centrifugal force of the drum 22 and the opening of the opening block 201, the degree of aggregation of solid material at the small end of the drum 22 is adjusted, thereby adjusting the water content of the solid material. From the side of the opening block 201 away from the drum 22 to the side closer to the drum 22, the opening block 201 gradually narrows, which can reduce the deposition of solid material on the side of the opening block 201 closer to the drum 22.

[0056] refer to Figure 4 and Figure 5 The pressure sensor 282 can detect the force on the opening block 201. Electrically connected to the drive source 273, the pressure sensor 282 can provide feedback when the pressure is high, facilitating timely adjustment of the opening of the solid discharge port 221 and mitigating the blockage caused by solid material. When the solid material discharges too slowly from the solid discharge port 221 or even experiences accidental blockage, the opening block 201 experiences a certain pushing force from the solid material. This force causes the opening block 201 to push the connecting pipe 2812 to slide along the support pipe 2811, allowing for a certain displacement of the opening block 201. This mitigates accidental blockage and enhances the overall safety of the equipment.

[0057] refer to Figure 4 and Figure 5 The spiral centrifuge 2 also includes a clearing assembly 29, which includes a connecting rod 291, a lifting plate 292, and a limiting rod 293. The connecting rod 291 is fixedly connected to the opening block 201, and the limiting rod 293 is fixedly connected to the end of the connecting rod 291 away from the opening block 201, and the limiting rod 293 is perpendicular to the connecting rod 291. The lifting plate 292 is hinged to the connecting rod 291, and two lifting plates 292 are provided. The lifting plates 292 extend into the drum 22 from the solid phase discharge port 221, and the limiting rod 293 is located on the side of the lifting plate 292 away from the opening block 201. When the lifting plate 292 rotates to be parallel with the limiting rod 293, the lifting plate 292 abuts against the limiting rod 293, and the limiting rod 293 can limit the rotation angle of the lifting plate 292.

[0058] refer to Figure 4 and Figure 5When the small end of the drum 22 becomes blocked, the adjusting component 27 can move the opening block 201 a certain distance via the connecting component 28, and the opening block 201 can move the unblocking component 29 a certain distance. When the opening block 201 moves closer to the drum 22, it causes the lifting plate 292 to extend into the drum 22. The lifting plate 292 is forced to rotate closer to the connecting rod 291, which facilitates the insertion of the lifting plate 292 into the solid material. When the opening block 201 moves away from the drum 22, it causes the lifting plate 292 to move. The lifting plate 292 is forced to rotate and abuts against the limiting rod 293. The two lifting plates 292 unfold and can move the solid material out of the solid discharge port 221, thereby improving the blockage problem at the small end of the drum 22.

[0059] refer to Figure 2 and Figure 4 The spiral centrifuge 2 also includes a scraper 202 and a moisture sensor 203. The scraper 202 is fixedly connected to the support rod 26, and the moisture sensor 203 is fixedly connected to the scraper 202. The scraper 202 abuts against the inner wall of the slurry discharge chamber 2051. The drum 22 drives the support rod 26 to rotate, and the support rod 26 drives the scraper 202 to rotate. The scraper 202 scrapes off the solid material adhering to the inner wall of the slurry discharge chamber 2051. The moisture sensor 203 detects changes in the water content of the solid material. The moisture sensor 203 is electrically connected to the drive source 273. The moisture sensor 203 feeds back the detected information to the drive source 273, causing the drive source 273 to move the opening block 201, thereby adjusting the opening of the solid discharge port 221.

[0060] refer to Figure 1 and Figure 2 The hydrolysis-acidification tank 3 includes a hydrolysis-acidification tank body 31, a first conveying pipe 32, and a first conveying pump 33. The first conveying pipe 32 is connected to both the slurry discharge chamber 2051 and the hydrolysis-acidification tank body 31. The slurry discharge chamber 2051 collects the slurry and directs it into the first conveying pipe 32. The first conveying pump 33 is installed on the first conveying pipe 32 and conveys the slurry into the hydrolysis-acidification tank body 31. After entering the hydrolysis-acidification tank body 31, the slurry undergoes a hydrolysis-acidification reaction under anaerobic conditions. Microorganisms in the hydrolysis-acidification tank body 31 decompose large organic molecules (such as proteins, fats, and carbohydrates) in the slurry into smaller organic molecules (such as fatty acids, amino acids, and monosaccharides). This process provides easily degradable substrates for subsequent anaerobic fermentation.

[0061] refer to Figure 1The anaerobic digester 4 includes an anaerobic digester body 41, a second conveying pipe 42, a second conveying pump 43, a waste collection box 44, a wastewater treatment tank 45, a third conveying pipe 46, and a third conveying pump 47. The second conveying pipe 42 connects the anaerobic digester body 41 to the hydrolysis acidification tank 31. The second conveying pump 43 is installed on the second conveying pipe 42 and conveys the material in the hydrolysis acidification tank 31 to the anaerobic digester body 41.

[0062] refer to Figure 1 After the material enters the anaerobic fermentation tank 41, it undergoes fermentation under high temperature (usually 50℃ to 60℃) and anaerobic conditions. The microorganisms in the anaerobic fermentation tank 41 further decompose small-molecule organic matter, producing biogas and a small amount of digestate. The biogas produced in the anaerobic fermentation tank 41 is collected and can be used for power generation, heating, or as fuel.

[0063] refer to Figure 1 The anaerobic fermentation tank 41 is connected to the wastewater treatment tank 45. A third conveying pipe 46 is connected to both the wastewater treatment tank 45 and the reactor body 11. A third conveying pump 47 is installed on the third conveying pipe 46. The digestate produced in the anaerobic fermentation tank 41 is fed into the wastewater treatment tank 45. After entering the wastewater treatment tank 45, the digestate undergoes physical, chemical, or biological treatment (such as sedimentation, filtration, and aeration) to remove suspended solids, organic matter, and inorganic salts, ensuring the purified liquid meets discharge or reuse standards. The third conveying pump 47 transports the treated liquid from the wastewater treatment tank 45 to the hydrolysis reactor 1 via the third conveying pipe 46 to replenish the water required during the hydrolysis reaction, thus achieving water resource recycling.

[0064] refer to Figure 1 The anaerobic fermentation tank 41 is connected to the waste collection box 44 through a pipe. During the anaerobic fermentation process, the waste generated in the anaerobic fermentation tank 41 is discharged into the waste collection box 44. The waste collection box 44 temporarily stores the waste for subsequent treatment or resource utilization.

[0065] The implementation principle of the hydrolysis equipment for treating kitchen waste and waste oil in Embodiment 1 of this application is as follows: Kitchen waste is fed into the feeding and separating device 7, filtered, separated, and crushed, and then enters the hydrolysis reactor 1. Waste oil and mixed acid are then fed into the hydrolysis reactor 1 for wet hydrolysis. Subsequently, the material enters the screw conveyor 23 through the feed pipe 25, and is discharged from the material outlet 231 into the rotating drum 22. The driving component 24 causes the rotating drum 22 and the screw conveyor 23 to rotate at different speeds, causing the solid material to move towards the small end of the rotating drum 22, and causing the water and oil to move towards the large end of the rotating drum 22 and separate into layers. The separated oil is discharged into the oil storage tank 5 through a pipeline, the separated water is discharged into the water storage tank 6, and the separated solid material is discharged from the solid discharge outlet 221. The adjusting component 27 drives the opening block 201 to move through the connecting component 28, thereby adjusting the opening of the solid discharge outlet 221 and thus adjusting the water content of the solid material. Solid materials and a small amount of water form a slurry that enters the hydrolysis and acidification tank 31 for hydrolysis and acidification reaction. Subsequently, the material enters the anaerobic fermentation tank 41 for anaerobic fermentation, thereby realizing the treatment and utilization of kitchen waste and waste oil.

[0066] Example 2:

[0067] Embodiment 2 of this application provides a hydrolysis device for treating kitchen waste and waste oil. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0068] refer to Figure 7 When the water content of the solid material separated by the spiral centrifuge 2 is relatively low, it can easily lead to poor flowability during the process of entering the hydrolysis and acidification tank 31. A horizontal auger 34 and a vertical auger 35 are installed between the spiral centrifuge 2 and the hydrolysis and acidification tank 31. The horizontal auger 34 is connected to the slurry discharge chamber 2051, and the vertical auger 35 is connected to both the horizontal auger 34 and the hydrolysis and acidification tank 31. The solid material enters the hydrolysis and acidification tank 31 through the horizontal auger 34 and the vertical auger 35.

[0069] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hydrolysis device for treating kitchen waste and waste oil, characterized in that, The device comprises a hydrolysis reactor (1), a screw centrifugal separator (2), a hydrolysis acidification tank (3) and an anaerobic fermentation tank (4) arranged in sequence. The screw centrifugal separator (2) comprises a base (21), a drum (22), a screw conveyor (23), a driving assembly (24), a supporting rod (26), an adjusting assembly (27), a connecting assembly (28) and an opening block (201); the driving assembly (24) drives the drum (22) and the screw conveyor (23) to rotate on the base (21), and a solid phase discharge port (221) is arranged at the tapered end of the drum (22); The supporting rod (26) is connected with the drum (22), the adjusting assembly (27) is connected with the supporting rod (26), the connecting assembly (28) is connected with the adjusting assembly (27), the opening block (201) is connected with the connecting assembly (28), and the opening block (201) is located outside the tapered end of the drum (22); the adjusting assembly (27) drives the opening block (201) to move through the connecting assembly (28), so that the opening block (201) adjusts the opening degree of the solid phase discharge port (221); The adjusting assembly (27) is arranged outside the tapered end of the drum (22), and comprises a supporting seat (271), a sliding block (272) and a pushing driving source (273); the supporting seat (271) is connected with the supporting rod (26), the sliding block (272) is slidably connected with the supporting seat (271), the connecting assembly (28) is connected with the sliding block (272), and the pushing driving source (273) pushes the sliding block (272) to slide; The connecting assembly (28) comprises an elastic element (281), which is arranged between the sliding block (272) and the opening block (201); The connecting assembly (28) further comprises a pressure sensor (282), which is arranged between the sliding block (272) and the opening block (201); the pressure sensor (282) detects the stress of the opening block (201), and the pressure sensor (282) is electrically connected with the pushing driving source (273); The opening block (201) is connected with a dredging assembly (29), and the dredging assembly (29) comprises a connecting rod (291) and a lifting plate (292); the connecting rod (291) is connected with the opening block (201) and the lifting plate (292) respectively, and the lifting plate (292) extends into the solid phase discharge port (221); the adjusting assembly (27) drives the dredging assembly (29) to move, so that the lifting plate (292) discharges the solid phase material in the drum (22) from the solid phase discharge port (221). The dredging assembly (29) further comprises a limiting rod (293) connected with the connecting rod (291), and the limiting rod (293) is located on the side of the lifting plate (292) away from the opening block (201); the lifting plate (292) is hinged to the connecting rod (291), and the limiting rod (293) limits the lifting plate (292).

2. The hydrolysis apparatus for treating kitchen waste and waste oil according to claim 1, characterized in that, The elastic element (281) comprises a supporting pipe (2811), a connecting pipe (2812) and a spring (2813); the supporting pipe (2811) is connected with the sliding block (272), the connecting pipe (2812) is in sliding connection with the supporting pipe (2811), and the spring (2813) is connected with the supporting pipe (2811) and the connecting pipe (2812) respectively.

3. The hydrolysis apparatus for treating kitchen waste and waste oil according to claim 1, characterized in that, From the side of the opening block (201) away from the rotating drum (22) to the side close to the rotating drum (22), the opening block (201) is tapered.

4. The hydrolysis apparatus for treating kitchen waste and waste oil according to claim 1, characterized in that, The machine base (21) is connected with a machine cover (204), the machine cover (204) is connected with a blocking ring (205), a slurry discharge chamber (2051) is formed between the blocking ring (205) and the machine cover (204), the slurry discharge chamber (2051) is arranged outside the solid phase discharge port (221), the slurry discharge chamber (2051) is in communication with the hydrolysis acidification tank (3), and the supporting rod (26) is connected with a scraper (202) which abuts against the inner wall of the slurry discharge chamber (2051). The scraper (202) is connected with a moisture sensor (203) for detecting the moisture content of the solid phase material in the slurry discharge chamber (2051).

5. The hydrolysis apparatus for treating kitchen waste and waste oil according to claim 1, characterized in that, Further comprising a feeding and separating device (7), the feeding and separating device (7) comprises a fixing frame (71), a pulverizer (72), a separating filter screen (73) and a conveying auger (74); the pulverizer (72) is connected with the fixing frame (71), the pulverizer (72) is provided with a feeding port, and the separating filter screen (73) is connected at the feeding port of the pulverizer (72); the conveying auger (74) is in communication with the pulverizer (72) and the hydrolysis reaction kettle (1) respectively, and the conveying auger (74) conveys the material in the pulverizer (72) into the hydrolysis reaction kettle (1).

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