Adjustable kitchen waste oil treatment system and control method thereof

Abstract

The invention provides an adjustable kitchen waste oil treatment system and a control method thereof. The system comprises an unloading workshop; a slag remover; a transfer tank; a thermal conditioning tank and a three-phase separator; the method comprises the following steps: feeding obtained kitchen waste oil into a three-phase separator after passing through an unloading workshop, a slag remover, a transfer tank and a thermal conditioning tank in sequence, separating the kitchen waste oil into an oil-phase substance, a water-phase substance and a solid-phase substance, and enabling the oil-phase substance to enter an outdoor storage tank through an oil-phase outlet for heat preservation and storage; the water-phase substances and the solid-phase substances enter the anaerobic digestion system through the water-phase outlet and the solid-phase outlet respectively to generate biogas, so that recyclable oil-phase substances in the kitchen waste oil are extracted and stored in a heat preservation manner, and residues and other impurities contained in the kitchen waste oil are effectively removed; and the separated water-phase substances and solid-phase substances can be utilized to generate biogas, so that illegal backflow of the kitchen waste oil can be avoided, and the kitchen waste oil can be uniformly and effectively recycled.

Description

Technical Field

[0001] This invention relates to the technical field of waste cooking oil treatment, specifically to an adjustable waste cooking oil treatment system and its control method. Background Technology

[0002] Waste cooking oil refers to various types of substandard waste oil generated in catering, food processing, and urban sewage systems. It mainly includes floating oil retrieved from sewers, "saliva oil" extracted from restaurant leftovers (swill), substandard animal offal processing oil, and "old oil" that has deteriorated after repeated high-temperature frying. Essentially, it is non-edible oil from kitchen waste, and because it contains large amounts of toxic and harmful substances, its use in the food industry has been explicitly prohibited by the state.

[0003] Currently, my country produces a massive amount of waste cooking oil annually, reaching tens of millions of tons. Against this backdrop, establishing a scientific and efficient system for removing waste and impurities is not only a technological requirement but also an urgent demand for environmental protection and social governance.

[0004] Waste cooking oil is generated from the massive discharge of waste oil in the catering industry. In urban catering activities, large quantities of frying oil, swill oil, and sewer sludge are discharged. This waste oil is mixed with food residue, silt, protein, detergent, salt, and microbial metabolites, forming an extremely complex mixture. Without effective removal of residue and impurities, subsequent resource utilization is impossible, and it may even cause equipment damage, catalyst deactivation, and a decline in product quality. Therefore, residue and impurity removal is a crucial preliminary step in the resource utilization chain of waste cooking oil.

[0005] Therefore, there is an urgent need to provide a solution for the treatment of kitchen waste oil in order to address the defects and shortcomings of the existing technologies. Summary of the Invention

[0006] To address the shortcomings and deficiencies in existing technologies, this invention provides an adjustable kitchen waste oil treatment system and its control method.

[0007] To address the shortcomings and deficiencies in existing technologies, the present invention provides the following specific solution: An adjustable kitchen waste oil treatment system, characterized in that: the system comprises: The unloading workshop is equipped with several interconnected buffer bins. The transport vehicles deliver the acquired kitchen waste oil into the buffer bins through the inlet, and the outlet of the buffer bins is connected to a slag removal machine. The slag remover has its inlet connected to the outlet of the buffer bin. The slag remover can feed and remove slag from the kitchen waste oil that enters it. The liquid phase material after slag removal is discharged through the outlet, and the solid phase material after slag removal is discharged through the slag outlet. The transfer tank has its inlet connected to the outlet of the slag remover. The transfer tank can temporarily store the liquid material entering it while heating the liquid material to a first temperature. The temporarily stored liquid material can be discharged through the outlet of the transfer tank. A heat conditioning tank, the inlet of which is connected to the outlet of a transfer tank, the heat conditioning tank is capable of heating the liquid phase material inside to a second temperature, and the second temperature is higher than the first temperature, and the heated liquid phase material can be discharged through the outlet of the heat conditioning tank. The three-phase separator has its inlet connected to the outlet of a heat conditioning tank. The three-phase separator separates the liquid material entering it into an oil phase, an aqueous phase, and a solid phase. The oil phase enters an outdoor storage tank for heat preservation through the oil phase outlet, while the aqueous phase and solid phase enter the anaerobic digestion system through the aqueous phase outlet and solid phase outlet, respectively, to produce biogas.

[0008] As a further preferred embodiment of the present invention, the buffer chamber is provided with a heating device and a stirring device. The heating device keeps the waste cooking oil in the buffer chamber within a preset temperature range, and the stirring device continuously stirs the waste cooking oil in the buffer chamber.

[0009] As a further preferred embodiment of the present invention, the buffer compartment is provided with a deodorization port connected to the deodorization device, and the inside of the buffer compartment is kept under negative pressure and connected to the deodorization device through the deodorization port.

[0010] As a further preferred embodiment of the present invention, the slag remover includes a housing, a drive device is installed at one end of the housing, the output shaft of the drive device extends into the housing and is fixedly connected to a rotating shaft inside the housing, a spiral stirring blade is fixed on the outer periphery of the rotating shaft, a filter screen is fixedly provided on the inner side of the housing away from the drive device, the feed inlet is opened on one side of the housing, the slag outlet is opened on the other side of the housing, and the discharge outlet is opened on the end of the housing away from the drive device.

[0011] As a further preferred embodiment of the present invention, the driving device is capable of both forward and reverse rotation, and the spiral stirring blades fixed on the outer circumference of the rotating shaft include forward blades and reverse blades. When the drive unit drives the rotating shaft to rotate in the forward direction, the forward blades can push the liquid material inside the shell to be discharged through the outlet. When the drive unit drives the shaft to rotate in the opposite direction, the reverse blades can push the solid material inside the shell out through the slag outlet.

[0012] As a further preferred embodiment of the present invention When the flow rate of liquid material discharged from the outlet is lower than the preset flow rate threshold and the duration exceeds the preset time threshold, the control drive device drives the rotating shaft to rotate in the opposite direction. When the flow rate of the liquid material discharged from the outlet is not lower than the preset flow rate threshold, or the duration does not exceed the preset time threshold, the control drive device drives the rotating shaft to rotate in the forward direction.

[0013] As a further preferred embodiment of the present invention The rotational speed at which the drive unit drives the shaft to rotate in the forward direction is greater than the rotational speed at which the drive unit drives the shaft to rotate in the reverse direction. The duration during which the drive device rotates the shaft in the forward direction is longer than the duration during which the drive device rotates the shaft in the reverse direction. The output power of the drive unit when it drives the shaft to rotate in the forward direction is less than the output power of the drive unit when it drives the shaft to rotate in the reverse direction.

[0014] As a further preferred embodiment of the present invention, an adjustable end cap is provided at the end of the housing away from the driving device. The adjustable end cap is fixedly connected to the housing by a fastener through a thread. An elastic element is also provided between the adjustable end cap and the end of the housing.

[0015] As a further preferred embodiment of the present invention, the adjustment priority of the drive device is higher than the adjustment priority of the adjustable end cap.

[0016] Furthermore, the present invention also provides a control method for an adjustable kitchen waste oil treatment system, characterized by comprising the following steps: S100: The transport vehicle delivers the collected kitchen waste oil from the inlet to the buffer bin inside the unloading workshop. The kitchen waste oil inside the buffer bin enters the slag remover through the outlet. S200: The slag remover feeds and removes slag from the kitchen waste oil that enters it. The liquid phase material after slag removal is discharged through the discharge port, and the solid phase material after slag removal is discharged through the slag discharge port. S300: The transfer tank temporarily stores the liquid material entering it while heating the liquid material to a first temperature. The temporarily stored liquid material is discharged into the heat conditioning tank through the outlet of the transfer tank. S400: The heat conditioning tank heats the liquid material inside to a second temperature, and the second temperature is higher than the first temperature. The heated liquid material is discharged into the three-phase separator through the outlet of the heat conditioning tank. S500: The three-phase separator separates the liquid material entering it into oil phase, water phase and solid phase. The oil phase enters the outdoor storage tank for heat preservation through the oil phase outlet, while the water phase and solid phase enter the anaerobic digestion system through the water phase outlet and solid phase outlet respectively to produce biogas.

[0017] Compared with existing technologies, the technical effects that this invention can achieve include: 1) This invention provides an adjustable waste cooking oil treatment system and its control method. The waste cooking oil is sequentially sent to a three-phase separator after passing through an unloading workshop, a slag remover, a transfer tank, and a heat conditioning tank. The oil phase is separated into oil phase, water phase, and solid phase. The oil phase enters an outdoor storage tank for heat preservation through the oil phase outlet. The water phase and solid phase enter an anaerobic digestion system through the water phase outlet and solid phase outlet, respectively, to generate biogas. This effectively removes residues and other impurities from the waste cooking oil while extracting recyclable oil phase and storing it at a heat preservation temperature. In addition, the separated water phase and solid phase can be used to generate biogas, which can prevent the illegal backflow of waste cooking oil and enable unified and effective recycling of waste cooking oil.

[0018] 2) This invention provides an adjustable kitchen waste oil treatment system and its control method. By setting a drive device, it can realize forward and reverse rotation. When the drive device drives the rotating shaft to rotate in the forward direction, the forward blades push the liquid phase material inside the shell to be discharged through the discharge port. When the drive device drives the rotating shaft to rotate in the reverse direction, the reverse blades push the solid phase material inside the shell to be discharged through the slag discharge port. Thus, by switching the forward and reverse rotation of a single slag removal device, the separation and discharge of solid and liquid phase materials in kitchen waste oil can be realized. The operation is simple and convenient, reducing the floor space cost while realizing automated slag removal and separation operation.

[0019] 3) This invention provides an adjustable kitchen waste oil treatment system and its control method. An adjustable end cap is provided at the end of the housing away from the driving device. The adjustable end cap is fixedly connected to the housing by a fastener through a thread. An elastic element is also provided between the adjustable end cap and the end of the housing. By adjusting the axial connection length of the thread, the slag removal pressure inside the housing can be adjusted, thereby meeting different slag removal pressure requirements and effectively increasing the applicable range. Attached Figure Description

[0020] Figure 1 The diagram shown is a logical structure diagram of the processing system provided in this invention.

[0021] Figure 2 The image shown is a side view of the slag removal machine provided in this invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] [First Embodiment] like Figure 1-2 The figure shown is an adjustable kitchen waste oil treatment system provided in the first embodiment of the present invention. The system includes: The unloading workshop 100 has several interconnected buffer bins. The transport vehicles deliver the acquired kitchen waste oil from the inlet to the buffer bins, and the outlet of the buffer bins is connected to the slag removal machine. Based on this, the buffer chambers in this embodiment are equipped with a heating device and a stirring device. The heating device heats the waste cooking oil in the buffer chamber and keeps it within a preset temperature range, while the stirring device can continuously stir the waste cooking oil in the buffer chamber to ensure that the waste cooking oil raw material can maintain uniform flow within the buffer chamber.

[0026] Meanwhile, the buffer chamber is also equipped with a deodorization port connected to the deodorization device. The buffer chamber is kept under negative pressure and connected to the deodorization device through the deodorization port, so that the odor generated by the waste cooking oil during the processing can be discharged into the deodorization device through the deodorization port, thus preventing the odor from escaping unexpectedly.

[0027] like Figure 1-2 As shown, the kitchen waste oil treatment system provided in this embodiment also includes a slag remover 200. The inlet 201 of the slag remover is connected to the outlet of the buffer tank. The slag remover 200 can feed and remove slag from the kitchen waste oil that enters it. The liquid phase material after slag removal is discharged through the outlet 202, and the solid phase material after slag removal is discharged through the slag outlet 203. like Figure 2 As shown, the slag remover 200 in this embodiment includes a housing 204. A drive device 205 is installed at one end of the housing 204. The output shaft of the drive device 205 extends into the housing 204 and is fixedly connected to a rotating shaft 206 inside the housing 204. Spiral stirring blades 207 are fixed on the outer periphery of the rotating shaft 206. A filter screen 208 is fixedly installed on the inner side of the housing 204 away from the drive device 205. The feed inlet 201 is opened on one side of the housing 204, the slag outlet 203 is opened on the other side of the housing 204, and the discharge outlet 202 is opened on the end of the housing 204 away from the drive device 205. The drive unit 205 can be a power source such as an electric motor. The output power of the drive unit 205 drives the rotating shaft 206 to drive the spiral stirring blades 207 fixed on its outer periphery to rotate synchronously. When rotating in the forward direction, the liquid phase material is discharged through the discharge port, and when rotating in the reverse direction, the solid phase material is discharged through the slag discharge port. Thus, by switching between forward and reverse rotation of a single slag removal device, the separation and discharge of solid and liquid phase materials in kitchen waste oil can be achieved. The operation is simple and convenient, reducing the floor space cost while realizing automated slag removal and separation operation.

[0028] Specifically, in this embodiment, the driving device 205 can achieve forward and reverse rotation. The spiral stirring blades 207 fixed on the outer periphery of the rotating shaft 206 include forward blades and reverse blades. The forward blades can push the liquid phase material inside the shell 204 out through the discharge port 202 when the driving device 205 rotates forward, while the reverse blades can push the solid phase material inside the shell 204 out through the slag discharge port 203 when the driving device 205 rotates in the reverse direction. When the drive device 205 drives the rotating shaft 206 to rotate in the forward direction, the forward blades can push the liquid material inside the housing 204 to be discharged through the discharge port 202. When the drive device 205 drives the rotating shaft 206 to rotate in the opposite direction, the reverse blades can push the solid material inside the shell 204 to be discharged through the slag outlet 203. By switching between forward and reverse rotation of a single slag removal device, the solid and liquid phases in kitchen waste oil can be separated and discharged. The operation is simple and convenient, reducing floor space costs while achieving automated slag removal and separation.

[0029] As a further preferred embodiment, the axial dimension of the reverse blade needs to be larger than that of the forward blade so that it can have sufficient strength during reverse rotation. This ensures effective slag removal efficiency and extends service life when the solid material experiences expected collision and wear with the shaft, blade, or inner wall of the casing.

[0030] In this embodiment, the forward and reverse rotation processes satisfy the following conditions: When the flow rate of liquid material discharged from outlet 202 is lower than the preset flow rate threshold and the duration exceeds the preset time threshold, the control drive device 205 drives the rotating shaft 206 to rotate in the opposite direction. This indicates that the liquid material in the kitchen waste oil may be close to being squeezed out, or the solid material in the kitchen waste oil may be blocked between the blades and the inner wall of the shell, so that the amount of liquid material discharged from outlet 202 is lower than the critical value. At this time, it is necessary to discharge the solid material inside the shell in time, so as to ensure the efficiency of liquid material discharge from outlet 202, and also effectively reduce the blockage effect of solid material between the blades and the inner wall of the shell, protect the rotating shaft, blades and shell, and extend the service life of the slag remover 200. When the flow rate of the liquid material discharged from the outlet 202 is not lower than the preset flow rate threshold, or the duration does not exceed the preset time threshold, the control drive device 205 drives the rotating shaft 206 to rotate in the forward direction. The fact that the flow rate of the liquid material discharged from the outlet 202 is not lower than the preset flow rate threshold indicates that the discharge efficiency of the liquid material from the outlet 202 is stable. The solid and liquid materials in the kitchen waste oil have not been completely separated, and forward rotation is still required to discharge the liquid material. The fact that the duration does not exceed the preset time threshold indicates that although there may have been blockage between the blade and the inner wall of the shell, the solid material may have shifted position or been broken and refined during the slag removal process. At this time, it no longer has an unexpected impact on the forward rotation process. Therefore, it is necessary to maintain forward rotation to ensure that the discharge efficiency of the liquid material from the outlet 202 is stable.

[0031] As a further preferred embodiment, during the slag removal process... The rotational speed at which the drive unit 205 drives the shaft 206 to rotate in the forward direction is greater than the rotational speed at which the drive unit 205 drives the shaft 206 to rotate in the reverse direction. The purpose of this setting is twofold: firstly, it can reduce the adverse effects on the shaft, blades, and inner wall of the casing caused by unintended collisions and wear between the solid material blocking the blades and the inner wall of the casing, or the impact of the solid material being thrown out due to the excessively high reverse rotational speed; secondly, it also facilitates the free detachment of the solid material blocking the blades and the inner wall of the casing from the blades or the inner wall of the casing, reducing the potential adverse effects on the subsequent forward rotation process; in addition, the lower reverse rotational speed can also provide a proper cooling and conditioning process for the subsequent forward rotation. The duration of forward rotation of the drive device 205 driving the rotating shaft 206 is longer than the duration of reverse rotation of the drive device 205 driving the rotating shaft 206. Maintaining the forward rotation duration longer than the reverse rotation duration is to ensure stable discharge efficiency of liquid material from the outlet 202. On the other hand, in non-continuous kitchen waste oil treatment tasks, a short reverse rotation process can be carried out after the forward rotation is completed, so as to achieve simultaneous feeding and slag removal with the fewest switching times between forward and reverse rotation. The output power of the drive device 205 driving the rotating shaft 206 to rotate in the forward direction is less than the output power of the drive device 205 driving the rotating shaft 206 to rotate in the reverse direction. This setting allows solid materials blocked between the rotating shaft, blades, or the inner wall of the housing to be further squeezed and crushed during the reverse rotation process, even if they cannot be separated or discharged during the rotation process. This facilitates the smooth progress of the subsequent forward and reverse rotation processes.

[0032] like Figure 2 As shown, in this embodiment, an adjustable end cap 209 is provided at the end of the housing 204 away from the driving device 205. The adjustable end cap 209 is fixedly connected to the housing 204 by a fastener 210 through a thread. An elastic element is also provided between the adjustable end cap 209 and the end of the housing 204. By adjusting the axial connection length of the thread, the slag removal extrusion pressure inside the housing can be adjusted, thereby meeting different slag removal pressure requirements and effectively increasing the applicable range.

[0033] Based on this, it is worth noting that in this embodiment, the adjustment priority of the drive device 205 is higher than that of the adjustable end cover 209. This is because it is more desirable to adjust the slag removal pressure by adjusting the drive device 205. This is because, on the one hand, the adjustment of the adjustable end cover 209 can only be performed when the slag remover is stopped. Therefore, frequent shutdowns to achieve the adjustment process will reduce the slag removal efficiency. On the other hand, the adjustment stroke of the threaded axial connection length is relatively limited, and the adjustment effect is not as direct as that of the adjustment of the drive device 205. In addition, if the adjustment of the threaded axial connection length is too tight or too loose, it may cause safety accidents or hidden dangers in the actual operation of the slag remover. The adjustment of the drive device 205 is usually limited to its safe stroke, and the safety level is relatively high.

[0034] like Figure 1 As shown, the kitchen waste oil treatment system mentioned in this embodiment also includes a transfer tank 300. The inlet of the transfer tank 200 is connected to the outlet 202 of the slag remover 200. The transfer tank 300 can temporarily store the liquid material entering it while heating the temperature of the liquid material to a first temperature. The temporarily stored liquid material can be discharged through the outlet of the transfer tank 300 for subsequent separation and pulping process. The transfer tank 300 can heat the liquid material entering it to 25-35℃, that is, the first temperature range is 25-35℃. The heat conditioning tank 400 has its inlet connected to the outlet of the transfer tank 300. The heat conditioning tank 400 can heat the liquid material inside to a second temperature through heating equipment such as steam coils evenly distributed on its inner wall, and the second temperature is higher than the first temperature. In this embodiment, the second temperature range is 55-65°C. The heated liquid material can be discharged through the outlet of the heat conditioning tank 400. The three-phase separator 500 has its inlet connected to the outlet of the heat conditioning tank 400. The three-phase separator 500 separates the liquid material entering it into oil phase, water phase and solid phase. The oil phase enters the outdoor storage tank 600 for heat preservation through the oil phase outlet. The water phase and solid phase enter the anaerobic digestion system through the water phase outlet and solid phase outlet respectively to produce biogas.

[0035] [Second Embodiment] The second embodiment of the present invention also provides a control method for an adjustable kitchen waste oil treatment system, comprising the following steps: S100: The transport vehicle delivers the collected kitchen waste oil from the inlet to the buffer bin of the unloading workshop 100. The kitchen waste oil inside the buffer bin enters the slag remover through the outlet. S200: The slag remover feeds and removes slag from the kitchen waste oil that enters it. The liquid material after slag removal is discharged through the discharge port 202, and the solid material after slag removal is discharged through the slag discharge port 203. S300: While temporarily storing the liquid material entering it, the transfer tank 300 heats the liquid material to a first temperature. The temporarily stored liquid material is discharged into the heat conditioning tank 400 through the outlet of the transfer tank 300. S400: The heat conditioning tank 400 heats the liquid material inside to a second temperature, and the second temperature is higher than the first temperature. The heated liquid material is discharged into the three-phase separator through the outlet of the heat conditioning tank 400. S500: The three-phase separator 500 separates the liquid material entering it into oil phase, water phase and solid phase. The oil phase enters the outdoor storage tank 600 for heat preservation through the oil phase outlet. The water phase and solid phase enter the anaerobic digestion system through the water phase outlet and solid phase outlet respectively to produce biogas.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable kitchen waste oil processing system, characterized by: The system comprises: A discharging workshop (100) internally provided with a plurality of buffer warehouses connected with each other, a transport vehicle conveying the obtained kitchen waste oil from an entrance to the inside of the buffer warehouse, and an outlet of the buffer warehouse connected with a deslagging machine; The deslagging machine (200) has an inlet (201) connected with the outlet of the buffer warehouse, and is capable of feeding and deslagging the kitchen waste oil entering the deslagging machine (200), discharging the liquid phase material after deslagging treatment through an outlet (202), and discharging the solid phase material after deslagging treatment through a deslagging outlet (203); A transfer tank (300) having an inlet connected with the outlet (202) of the deslagging machine (200), and being capable of temporarily storing the liquid phase material entering the inside of the transfer tank (300) while heating the temperature of the liquid phase material to a first temperature, and discharging the temporarily stored liquid phase material through an outlet of the transfer tank (300); A thermal conditioning tank (400) having an inlet connected with the outlet of the transfer tank (300), and being capable of heating the liquid phase material in the inside of the thermal conditioning tank (400) to a second temperature, and satisfying that the second temperature is higher than the first temperature, and discharging the heated liquid phase material through an outlet of the thermal conditioning tank (400); A three-phase separator (500) having an inlet connected with the outlet of the thermal conditioning tank (400), and being capable of separating the liquid phase material entering the inside of the three-phase separator (500) into oil phase material, water phase material and solid phase material, and discharging the oil phase material through an oil phase outlet into an outdoor storage tank (600) for heat preservation and storage, and discharging the water phase material and the solid phase material through a water phase outlet and a solid phase outlet into an anaerobic digestion system to produce biogas.

2. The adjustable kitchen waste oil processing system according to claim 1, wherein: The buffer warehouse is provided with a heating device and a stirring device, the heating device keeps the kitchen waste oil in the buffer warehouse within a preset temperature range, and the stirring device keeps the kitchen waste oil in the buffer warehouse in continuous stirring action.

3. The adjustable kitchen waste oil processing system of claim 1, wherein: The buffer warehouse is provided with a deodorizing opening connected with a deodorizing device, and the inside of the buffer warehouse is kept under negative pressure and communicates with the deodorizing device through the deodorizing opening.

4. The adjustable kitchen waste oil processing system of claim 1, wherein: The deslagging machine (200) comprises a shell (204), one end of the shell (204) is provided with a driving device (205), an output shaft of the driving device (205) extends into the inside of the shell (204) and is fixedly connected with a rotating shaft (206) in the inside of the shell (204), a spiral stirring blade (207) is fixedly arranged on the outer periphery of the rotating shaft (206), a filter screen (208) is fixedly arranged on the inner side of the shell (204) away from the driving device (205), the inlet (201) is arranged on one side of the shell (204), the deslagging outlet (203) is arranged on the other side of the shell (204), and the outlet (202) is arranged on one end of the shell (204) away from the driving device (205).

5. The adjustable kitchen waste oil disposal system of claim 4, wherein: The driving device (205) can realize forward rotation and reverse rotation, the spiral stirring blade (207) fixedly arranged on the outer periphery of the rotating shaft (206) comprises forward blades and reverse blades, When the driving device (205) drives the rotating shaft (206) to rotate forward, the forward blades can push the liquid-phase material inside the shell (204) to be discharged through the discharge port (202); When the driving device (205) drives the rotating shaft (206) to rotate reversely, the reverse blades can push the solid-phase material inside the shell (204) to be discharged through the slag discharge port (203).

6. The adjustable kitchen waste oil treatment system according to claim 5, characterized in that: when the flow rate of the liquid-phase material discharged through the discharge port (202) is lower than the preset flow rate threshold and the duration exceeds the preset time threshold, the driving device (205) is controlled to drive the rotating shaft (206) to rotate reversely; when the flow rate of the liquid-phase material discharged through the discharge port (202) is not lower than the preset flow rate threshold or the duration does not exceed the preset time threshold, the driving device (205) is controlled to drive the rotating shaft (206) to rotate forward.

7. The adjustable kitchen waste oil treatment system according to claim 5, characterized in that: the rotating speed of the rotating shaft (206) driven by the driving device (205) to rotate forward is greater than the rotating speed of the rotating shaft (206) driven by the driving device (205) to rotate reversely; the duration of the rotating shaft (206) driven by the driving device (205) to rotate forward is greater than the duration of the rotating shaft (206) driven by the driving device (205) to rotate reversely; the output power of the driving device (205) when driving the rotating shaft (206) to rotate forward is less than the output power of the driving device (205) when driving the rotating shaft (206) to rotate reversely.

8. The adjustable kitchen waste oil disposal system of claim 4, wherein: An adjustable end cover (209) is arranged at the end of the shell (204) away from the driving device (205), the adjustable end cover (209) is threadedly fixedly connected with the shell (204) through a fixing member (210), and an elastic member is further arranged between the adjustable end cover (209) and the end of the shell (204).

9. The adjustable kitchen waste oil disposal system of claim 8, wherein: The adjustment priority of the driving device (205) is higher than the adjustment priority of the adjustable end cover (209).

10. The control method of the adjustable kitchen waste oil treatment system according to any one of claims 1-9, wherein: The method comprises the following steps: S100: The transport vehicle sends the obtained kitchen waste oil from the inlet to the inside of the buffer bin of the unloading workshop (100), and the kitchen waste oil in the buffer bin enters the slag removal machine through the outlet; S200: The slag removal machine feeds and removes slag from the kitchen waste oil entering the slag removal machine, the liquid-phase material after the slag removal treatment is discharged through the discharge port (202), and the solid-phase material after the slag removal treatment is discharged through the slag discharge port (203); S300: The intermediate tank (300) temporarily stores the liquid-phase material entering the inside of the intermediate tank (300) and heats the temperature of the liquid-phase material to a first temperature, and the temporarily stored liquid-phase material is discharged through the outlet of the intermediate tank (300) to the thermal conditioning tank (400); S400: The thermal conditioning tank (400) heats the liquid-phase material in the inside of the thermal conditioning tank (400) to a second temperature, and the second temperature is higher than the first temperature, and the heated liquid-phase material is discharged through the outlet of the thermal conditioning tank (400) to the three-phase separation machine; S500: The three-phase separator (500) separates the liquid-phase material entering its interior into oil-phase material, water-phase material and solid-phase material. The oil-phase material enters the outdoor storage tank (600) for heat preservation and storage through an oil-phase outlet. The water-phase material and the solid-phase material enter an anaerobic digestion system through a water-phase outlet and a solid-phase outlet, respectively, to produce biogas.

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