Kitchen garbage treatment equipment and process

Abstract

The invention discloses kitchen garbage treatment equipment and a kitchen garbage treatment process. The treatment equipment comprises a temporary storage tank, an electromagnetic heater, a feeding pump and a horizontal centrifugal machine, the temporary storage tank is used for temporarily storing slurry; the electromagnetic heater comprises an electromagnetic heating pipeline and an electromagnetic coil wound on the periphery of the electromagnetic heating pipeline; the feeding pump is connected between the temporary storage tank and a pipeline inlet of the electromagnetic heating pipeline and is used for pumping the slurry in the temporary storage tank into the electromagnetic heating pipeline; a pipeline outlet of the electromagnetic heating pipeline is connected with the horizontal centrifugal machine; and a water flow switch is arranged in front of a pipeline inlet of the electromagnetic heating pipeline and is in linkage fit with the electromagnetic coil. By arranging the electromagnetic heater with the electromagnetic heating pipeline, the slurry can be efficiently, quickly and conveniently heated, the treatment capacity is not increased, and the treatment efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage disposal, and in particular to a kitchen waste disposal device and process. Background Art

[0002] With the promotion and enforcement of household waste classification in my country, the demand for the collection and treatment of kitchen waste (including restaurant kitchen waste, household kitchen waste and other kitchen waste) in urban household waste is increasing day by day. Many cities have established kitchen waste treatment plants. In order to meet the requirements of the anaerobic fermentation process at the back end of the treatment plant, it is generally necessary to separate the oil and water from the slurry obtained during the kitchen waste pretreatment process.

[0003] In the oil-water separation process of kitchen slurry in domestic kitchen waste treatment plants, it is necessary to first separate the slurry from the kitchen waste, then heat the slurry to a predetermined temperature, and then send it to a centrifuge for oil separation and extraction; for example, Chinese patent CN 112194273 A discloses a device and method for oil-water separation of kitchen waste oily wastewater. In this scheme, a raw material storage device is provided. The material (slurry) is stored in the material storage device and then heated by steam or electromagnetic heating belt. However, the device has the following shortcomings: When steam is used for heating, firstly, additional equipment such as steam source and steam pipeline is required, which is costly and not suitable for all kitchen waste processing plants; secondly, steam heating is to inject steam into the raw material storage device through a steam heating perforated pipe, and the steam is mixed with the material to heat and raise the temperature, which will increase the processing volume in the raw material storage device, and the increase in processing volume will increase the processing time of the device, resulting in a decrease in processing efficiency; and, the heating time of steam heating is long, the heating efficiency is low, and the material needs to be continuously stirred by a stirring device, the overall heating temperature is difficult to control, and the material temperature in the raw material storage device cannot be accurately controlled. When an electromagnetic heating belt is used, since the electromagnetic heating belt in this scheme is wrapped around the outside of the raw material storage device, and the raw material storage device is usually large in size, generally 5-10 cubic volumes, it takes a long time to heat the internal material through the heat of the side wall of the raw material storage device, and the heating efficiency is low. Moreover, when the temperature of the side wall is high, the slurry will be overheated to form a coking layer that adheres to the inner wall of the raw material storage device, affecting the service life. Summary of the invention The object of the present invention is to provide a kitchen waste treatment device and process, which has the advantage of improving treatment efficiency.

[0004] In order to achieve the above object, the solution of the present invention is: A kitchen waste treatment device comprises a temporary storage tank, an electromagnetic heater, a feed pump and a horizontal centrifuge; The temporary storage tank is used for temporarily storing slurry; The electromagnetic heater comprises an electromagnetic heating pipe and an electromagnetic coil wound around the outer circumference of the electromagnetic heating pipe; The feed pump is connected between the temporary storage tank and the pipeline inlet of the electromagnetic heating pipeline, and is used to pump the slurry in the temporary storage tank into the electromagnetic heating pipeline; the pipeline outlet of the electromagnetic heating pipeline is connected to the horizontal centrifuge; A water flow switch is arranged before the pipeline inlet of the electromagnetic heating pipeline, and the water flow switch is linked with the electromagnetic coil.

[0005] Furthermore, a cleaning water pipeline that can be opened and closed electrically is provided before the pipeline inlet of the electromagnetic heating pipeline; the cleaning water pipeline is located between the feed pump and the temporary storage tank.

[0006] Furthermore, there are more than two electromagnetic heaters, which are arranged in series front and back to form a multi-stage electromagnetic heating structure.

[0007] Furthermore, the outer periphery of the electromagnetic coil is wrapped with heater insulation cotton; and a water inlet temperature probe and a water outlet temperature probe are respectively provided at the pipe inlet and the pipe outlet of the electromagnetic heating pipe.

[0008] Furthermore, the inner diameter of the electromagnetic heating pipe is 50-100 mm.

[0009] Furthermore, the temporary storage tank outlet is provided with a temporary storage tank outlet solenoid valve and is connected to the inlet of a feeding pump; the feeding pump is a quantitative feeding pump.

[0010] Furthermore, it also includes a control device; the control device is electrically connected to the electromagnetic coil, the feed pump and the water flow switch.

[0011] Furthermore, the temporary storage tank is provided with an interlayer heating structure; and the interior of the temporary storage tank is provided with a stirring mechanism, a high material level sensor and a low material level sensor.

[0012] The present invention also provides a kitchen waste treatment process, comprising the following steps: S1, separating the kitchen waste through a kitchen waste pretreatment device to obtain a slurry; S2, the slurry is then put into a temporary storage tank for temporary storage after the sand and impurity removal process; S3. Setting the centrifugal production target temperature according to the slurry properties; S4. After the slurry level in the temporary storage tank is raised to a preset high level, the feed pump connected to the outlet of the temporary storage tank is used to transport the slurry to the rear-end multi-stage electromagnetic heating structure according to the set processing volume, and the multi-stage electromagnetic heating structure is used to heat the slurry; The multi-stage electromagnetic heating structure includes a first-stage electromagnetic heater and a second-stage electromagnetic heater connected in series, and the first-stage electromagnetic heater and the second-stage electromagnetic heater each include an electromagnetic heating pipe and an electromagnetic coil wound around the outer circumference of the electromagnetic heating pipe, and the electromagnetic coil is used to heat the electromagnetic heating pipe; S5. The slurry pumped out by the feed pump passes through the electromagnetic heating pipe of the first-stage electromagnetic heater, and is preheated in the first stage to control the slurry temperature to 5~10℃ below the centrifugal production target temperature; S6. The slurry that has been preheated in the first stage passes through the electromagnetic heating pipe of the second stage electromagnetic heater, and is precisely heated in the second stage to control the slurry temperature to the centrifugal production target temperature ±0.2°C; S7. Send the slurry that has undergone secondary preheating to a horizontal centrifuge for centrifugal separation.

[0013] 10. The kitchen waste treatment process according to claim 9, characterized in that: A water flow switch and an electrically opened and closed cleaning water pipeline are provided before the pipeline inlet of the electromagnetic heating pipeline. The water flow switch is linked with the electromagnetic coil. The cleaning water pipeline is located between the feed pump and the temporary storage tank. A temporary storage tank outlet electromagnetic valve is provided between the temporary storage tank outlet and the cleaning water pipeline. And in step S4, the electromagnetic coil is controlled to work only when the water flow switch set in the electromagnetic heating pipeline detects slurry; when the slurry level in the temporary storage tank drops to a preset low level, the outlet solenoid valve of the temporary storage tank is controlled to close, the cleaning water pipeline is controlled to open to let water in, and the feed pump delivers the cleaning water to the rear end to clean the electromagnetic heating pipeline and the horizontal centrifuge cavity.

[0014] After adopting the above technical solution, by setting up an electromagnetic heater with an electromagnetic heating pipe, the slurry can be heated efficiently, quickly and conveniently, without increasing the processing volume, thereby improving the processing efficiency. Specifically, the front end of the electromagnetic heating pipe is connected to a feed pump, and the slurry is pumped into the electromagnetic heating pipe by the feed pump, and the electromagnetic coil is energized to generate high-frequency magnetic lines, which heat the electromagnetic heating pipe, and the slurry continuously absorbs heat while flowing in the electromagnetic heating pipe. The heating operation is completed when the slurry flows from the inlet to the outlet of the electromagnetic heating pipe, and then it is input into the horizontal centrifuge for centrifugal operation, and the temperature of the slurry output from the electromagnetic heating pipe can be precisely controlled by controlling the power of the electromagnetic coil, so that the temperature of the output slurry meets the centrifugal production target temperature of the horizontal centrifuge, thereby improving the processing efficiency. Moreover, in the actual production process, the required centrifugal production target temperature can be specifically increased or decreased according to the changes in the types of oils and fats in the slurry properties. For example, when the floating oil content increases and the emulsified oil content decreases, the oil and fat are easily separated from the slurry, and the centrifugal production target temperature can be lowered. Therefore, by lowering the temperature, energy can be greatly saved, and the waste of resources caused by blindly setting high target temperatures can be avoided, which is more environmentally friendly. In addition, since a water flow switch is provided at the entrance of the pipeline, the electromagnetic heater can only be started when the slurry passes through and triggers the water flow switch, avoiding excessive heating of the slurry to form a coking layer adhering to the inner wall of the electromagnetic heating pipeline, which affects the service life of the electromagnetic heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of embodiment 1 of the present invention; Figure 2 This is a process schematic diagram of Example 1 of the present invention; Figure 3 This is a schematic diagram of the structure of Example 2 of the present invention.

[0016] Description of reference numerals: kitchen waste pretreatment unit 1, temporary storage tank 2, temporary storage tank outlet electromagnetic valve 21, stirring mechanism 22, high material level sensor 23, low material level sensor 24, sandwich heating structure 25, electromagnetic heater 3, electromagnetic heating pipeline 31, electromagnetic coil 32, heater insulation cotton 33, inlet water temperature probe 34, outlet water temperature probe 35, feeding pump 4, horizontal centrifuge 5, water flow switch 6, cleaning water pipeline 7, cleaning water electromagnetic valve 71, control device 8; The multi-stage electromagnetic heating structure 30 comprises a first-stage electromagnetic heater 301 and a second-stage electromagnetic heater 302 . DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Example 1 like Figure 1 As shown, a kitchen waste treatment device of this embodiment includes a kitchen waste pretreatment unit 1, a temporary storage tank 2, an electromagnetic heater 3, a feeding pump 4 and a horizontal centrifuge 5.

[0019] The temporary storage tank 2 is used for temporarily storing slurry; the inlet of the temporary storage tank 2 can be connected to the kitchen waste pretreatment unit 1, and the kitchen waste pretreatment unit 1 is used for separating the slurry in the kitchen waste and conveying it to the temporary storage tank 2.

[0020] The electromagnetic heater 3 includes an electromagnetic heating pipe 31 and an electromagnetic coil 32 wound around the outer circumference of the electromagnetic heating pipe 31 ; the electromagnetic coil 32 can generate high-frequency magnetic lines of force when energized, so that the electromagnetic heating pipe 31 can be heated.

[0021] The feed pump 4 is connected between the temporary storage tank 2 and the pipeline inlet of the electromagnetic heating pipeline 31, and is used to pump the slurry in the temporary storage tank 2 into the electromagnetic heating pipeline 31; the pipeline outlet of the electromagnetic heating pipeline 31 is connected to the horizontal centrifuge 5; the horizontal centrifuge 5 is used to perform centrifugal operation to separate oil and fat in the slurry.

[0022] A water flow switch 6 is provided before the pipe inlet of the electromagnetic heating pipe 31 , and the water flow switch 6 is linked with the electromagnetic coil 32 .

[0023] Thus, by providing the electromagnetic heater 3, the slurry can be heated efficiently, quickly and conveniently without increasing the processing volume, thereby improving the processing efficiency.

[0024] Specifically, the front end of the electromagnetic heating pipe 31 is connected to the feed pump 4, and the slurry is pumped into the electromagnetic heating pipe 31 through the feed pump 4, and the electromagnetic coil 32 is energized to generate high-frequency magnetic lines, so that the electromagnetic heating pipe 31 is heated, and the slurry continuously absorbs heat while flowing in the electromagnetic heating pipe 31. When the slurry flows from the inlet to the outlet of the electromagnetic heating pipe 31, the heating operation is completed, and then it is input into the horizontal centrifuge 5 for centrifugal operation, and the temperature of the slurry output from the electromagnetic heating pipe 31 can be conveniently and accurately regulated by controlling the power of the electromagnetic coil 32, so that the temperature of the output slurry meets the centrifugal production target temperature of the horizontal centrifuge 5, thereby improving the processing efficiency. In addition, in the actual production process, the required centrifugal production target temperature can be specifically increased or decreased according to the change of the type of oil in the slurry properties. For example, when the floating oil content increases and the emulsified oil content decreases, the oil is easy to separate from the slurry, and the centrifugal production target temperature can be reduced. Therefore, by reducing the temperature, energy can be greatly saved, and the waste of resources caused by blindly setting a high target temperature can be avoided, which is more environmentally friendly.

[0025] Since a water flow switch 6 is provided at the entrance of the pipeline, the electromagnetic heater 3 can be started only when slurry passes through and triggers the water flow switch 6, thereby avoiding excessive heating of the slurry to form a coking layer adhering to the inner wall of the electromagnetic heating pipeline 31, thereby affecting the service life of the electromagnetic heater 3.

[0026] In this embodiment, a cleaning water pipeline 7 that is electrically opened and closed is provided before the pipeline inlet of the electromagnetic heating pipeline 31. Specifically, a cleaning water solenoid valve 71 can be provided at the cleaning water pipeline 7; the cleaning water pipeline 7 is located between the feed pump 4 and the temporary storage tank 2. Therefore, after the slurry is processed, the cleaning water can be connected to the cleaning water for cleaning, and the cleaning time can be set as needed.

[0027] The outlet of the temporary storage tank 2 is provided with a temporary storage tank outlet solenoid valve 21 and is connected to the inlet of the feeding pump 4; the cleaning water pipeline 7 can be arranged between the outlet of the temporary storage tank 2 and the feeding pump 4. When cleaning is required, the outlet of the temporary storage tank 2 is first closed, and then the cleaning water solenoid valve 71 is opened, and the feeding pump 4 can be a quantitative feeding pump 4.

[0028] The outer periphery of the electromagnetic coil 32 is wrapped with a heater insulation cotton 33, which is used to keep the electromagnetic heater 3 warm and prevent heat from being dissipated to the external environment. The pipe inlet and pipe outlet of the electromagnetic heating pipe 31 can be respectively provided with an inlet water temperature probe 34 and an outlet water temperature probe 35 for real-time temperature monitoring.

[0029] In this embodiment, the inner diameter of the electromagnetic heating pipe 31 can be 50-100 mm to ensure heating speed and heating efficiency. The electromagnetic heating pipe 31 can be a stainless steel pipe as a whole, or a stainless steel pipe is embedded inside. The electromagnetic heating pipe 31 can also be carbon steel or the like.

[0030] There can be more than two electromagnetic heaters 3 , which are arranged in series front and back to form a multi-stage electromagnetic heating structure 30 .

[0031] In this embodiment, the multi-stage electromagnetic heating structure 30 includes a primary electromagnetic heater 301 and a secondary electromagnetic heater 302 connected front and back. The primary electromagnetic heater 301 and the secondary electromagnetic heater 302 each include an electromagnetic heating pipe 31 and an electromagnetic coil 32 wound around the outer circumference of the electromagnetic heating pipe 31, and the electromagnetic coil 32 is used to heat the electromagnetic heating pipe 31.

[0032] The first-level electromagnetic heater 301 can be used to achieve first-level preheating, and the second-level electromagnetic heater 302 can be used to achieve second-level precise heating, thereby achieving precise temperature control. Of course, it is also possible not to set up multi-level heating, but to use the first-level electromagnetic heater 301 and the second-level electromagnetic heater 302 separately. When one of the electromagnetic heaters 3 fails and needs maintenance, the temperature difference value of the electromagnetic heater 3 can be set to 0°C in the control cabinet, that is, the single set of electromagnetic heaters 3 is switched to production operation, and the two sets of electromagnetic heaters 3 are used as a backup to ensure that the processing process is not interrupted and improve the working efficiency of the processing equipment.

[0033] In this embodiment, a stirring mechanism 22 , a high material level sensor 23 and a low material level sensor 24 are provided inside the temporary storage tank 2 .

[0034] In this embodiment, the processing equipment further includes a control device 8; the control device 8 can be electrically connected to the high material level sensor 23, the low material level sensor 24, the temporary storage tank outlet electromagnetic valve 21, the cleaning water electromagnetic valve 71, the feed pump 4, the water flow switch 6, the electromagnetic coil 32 of the first electromagnetic heater 301 and the second electromagnetic heater 302, the inlet water temperature probe 34, the outlet water temperature probe 35 and the horizontal centrifuge 5. The control device 8 is used to coordinate and control the operation of the processing equipment according to the corresponding program, and can be in the form of a control cabinet.

[0035] Specifically, the operation description of the above processing equipment may be as follows: The kitchen waste is separated by the kitchen waste pretreatment equipment to obtain slurry, and the slurry is then stored in the temporary storage tank 2 after the sand and impurity removal process.

[0036] First, the processing capacity of the feed pump 4 and the outlet water control temperature of the secondary electromagnetic heater 302 (the centrifugal production target temperature required by the horizontal centrifuge 5) can be set in the control cabinet. After the control cabinet recognizes the full material level signal (high liquid level) detected by the high material level sensor 23 of the temporary storage tank 2, the horizontal centrifuge 5, the secondary electromagnetic heater 302, the primary electromagnetic heater 301 (the electromagnetic coil 32 of the electromagnetic heater 3 is energized but not heated), the temporary storage tank outlet electromagnetic valve 21 and the quantitative feed pump 4 are started in sequence. During the startup process, the control cabinet system self-checks and enters production operation after no error is found.

[0037] The quantitative feeding pump 4 delivers the slurry to the rear end according to the processing volume set by the control cabinet. When the slurry flows through the water flow switch 6 of the first-level electromagnetic heater 301, the switch signal is triggered and fed back to the control cabinet. The control cabinet controls the first-level heater electromagnetic coil 32 to be energized, and the electromagnetic coil 32 generates high-frequency magnetic lines, which makes the stainless steel pipe embedded in the electromagnetic heater 3 heat up, thereby heating the slurry. The first-level electromagnetic heater 301 is for preheating the slurry, raising it to about 5~10℃ below the centrifugal production target temperature (the temperature difference can be set through the control cabinet). The control cabinet controls the output power of the electromagnetic coil 32 by monitoring the inlet and outlet water temperatures of the first-level electromagnetic heater 301, which can indirectly control the temperature of the embedded stainless steel pipe, and then control the slurry temperature to achieve real-time temperature control. The second-level heating electromagnetic heater 3 is for precise heating, which is raised to the centrifugal production target temperature ±0.2℃.

[0038] In conjunction with the above, see Figure 2 This embodiment also provides a kitchen waste treatment process, comprising the following steps: S1. Separate the kitchen waste through a kitchen waste pretreatment device to obtain a slurry; the organic solid residue separated by the kitchen waste pretreatment device can be recycled.

[0039] S2, the slurry is then put into temporary storage tank 2 for temporary storage after the sand and impurity removal process; S3. Setting the centrifugal production target temperature according to the slurry properties; S4, after the slurry level in the temporary storage tank 2 is raised to a preset high level, the feed pump 4 connected to the outlet of the temporary storage tank 2 is used to deliver the slurry to the rear multi-stage electromagnetic heating structure 30 according to the set processing volume, and the multi-stage electromagnetic heating structure 30 is used to heat the slurry; S5, the slurry pumped out by the feed pump 4 passes through the electromagnetic heating pipe 31 of the first-level electromagnetic heater 301, and is preheated at the first level to control the slurry temperature to be 5-10°C below the centrifugal production target temperature; S6, the slurry after primary preheating passes through the electromagnetic heating pipe 31 of the secondary electromagnetic heater 302, and is subjected to secondary precise heating to control the slurry temperature to the centrifugal production target temperature ±0.2°C; S7, sending the slurry after secondary preheating to the horizontal centrifuge 5 for centrifugal separation. Separating the centrifugal solid residue and crude oil, so as to facilitate subsequent resource utilization.

[0040] And in step S4, the electromagnetic coil 32 is controlled to work only when the water flow switch 6 set in the electromagnetic heating pipe 31 detects slurry; when the slurry level in the temporary storage tank 2 drops to a preset low material level, the temporary storage tank outlet electromagnetic valve 21 is controlled to close, and the cleaning water pipe 7 is controlled to open water inlet, and the feed pump 4 transports the cleaning water to the rear end to clean the electromagnetic heating pipe 31 and the cavity of the horizontal centrifuge 5.

[0041] Thus, by adopting this treatment process, a suitable centrifugal production target temperature can be set according to the actual properties of the slurry components, and then the multi-stage electromagnetic heating structure 30 can be used to quickly and efficiently increase the temperature of the slurry, thereby achieving precise control of the slurry temperature, effectively saving resources, saving costs, and improving treatment efficiency.

[0042] Example 2 like Figure 3 As shown, the structure of this embodiment is basically the same as that of the above-mentioned embodiment, and the main difference is that the temporary storage tank 2 of this embodiment may be provided with an interlayer heating structure 25, and the interlayer heating structure 25 can be used to directly achieve primary preheating in the temporary storage tank 2; therefore, the electromagnetic heating structure may only be provided with one electromagnetic heating pipe 31, and efficient and accurate temperature control and regulation can also be achieved.

[0043] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, equivalent changes and modifications without departing from the principle of the present invention should still belong to the protection scope of the present invention.

[0044] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

Claims

1. A kitchen waste treatment device, characterized in that: It includes temporary storage tank, electromagnetic heater, feed pump and horizontal centrifuge; The temporary storage tank is used for temporarily storing slurry; The electromagnetic heater comprises an electromagnetic heating pipe and an electromagnetic coil wound around the outer circumference of the electromagnetic heating pipe; The feed pump is connected between the temporary storage tank and the pipeline inlet of the electromagnetic heating pipeline, and is used to pump the slurry in the temporary storage tank into the electromagnetic heating pipeline; the pipeline outlet of the electromagnetic heating pipeline is connected to the horizontal centrifuge; A water flow switch is arranged before the pipeline inlet of the electromagnetic heating pipeline, and the water flow switch is linked with the electromagnetic coil.

2. A kitchen waste treatment device according to claim 1, characterized in that: A cleaning water pipeline that is electrically opened and closed is also provided before the pipeline inlet of the electromagnetic heating pipeline; the cleaning water pipeline is located between the feed pump and the temporary storage tank.

3. The kitchen waste treatment equipment according to claim 1, characterized in that: There are more than two electromagnetic heaters, which are arranged in series front and back to form a multi-stage electromagnetic heating structure.

4. The kitchen waste treatment device according to claim 1, characterized in that: The outer circumference of the electromagnetic coil is wrapped with heater insulation cotton; the pipeline inlet and pipeline outlet of the electromagnetic heating pipeline are respectively provided with an inlet water temperature probe and an outlet water temperature probe.

5. The kitchen waste treatment equipment according to claim 1, characterized in that: The inner diameter of the electromagnetic heating pipe is 50-100 mm.

6. The kitchen waste treatment equipment according to claim 1, characterized in that: The temporary storage tank outlet is provided with a temporary storage tank outlet solenoid valve and is connected to the inlet of a feeding pump; the feeding pump is a quantitative feeding pump.

7. The kitchen waste treatment equipment according to claim 1, characterized in that: It also includes a control device; the control device is electrically connected to the electromagnetic coil, the feed pump and the water flow switch.

8. The kitchen waste treatment equipment according to claim 1, characterized in that: The temporary storage tank is provided with an interlayer heating structure; the temporary storage tank is provided with a stirring mechanism, a high material level sensor and a low material level sensor.

9. A kitchen waste treatment process, characterized in that: The steps include: S1, separating the kitchen waste through a kitchen waste pretreatment device to obtain a slurry; S2, the slurry is then put into a temporary storage tank for temporary storage after the sand and impurity removal process; S3. Setting the centrifugal production target temperature according to the slurry properties; S4. After the slurry level in the temporary storage tank is raised to a preset high level, the feed pump connected to the outlet of the temporary storage tank is used to transport the slurry to the rear-end multi-stage electromagnetic heating structure according to the set processing volume, and the multi-stage electromagnetic heating structure is used to heat the slurry; The multi-stage electromagnetic heating structure includes a first-stage electromagnetic heater and a second-stage electromagnetic heater connected in series, and the first-stage electromagnetic heater and the second-stage electromagnetic heater each include an electromagnetic heating pipe and an electromagnetic coil wound around the outer circumference of the electromagnetic heating pipe, and the electromagnetic coil is used to heat the electromagnetic heating pipe; S5. The slurry pumped out by the feed pump passes through the electromagnetic heating pipe of the first-stage electromagnetic heater, and is preheated in the first stage to control the slurry temperature to 5~10℃ below the centrifugal production target temperature; S6. The slurry that has been preheated in the first stage passes through the electromagnetic heating pipe of the second stage electromagnetic heater, and is precisely heated in the second stage to control the slurry temperature to the centrifugal production target temperature ±0.2°C; S7. Send the slurry that has undergone secondary preheating to a horizontal centrifuge for centrifugal separation.

10. A kitchen waste treatment process according to claim 9, characterized in that: A water flow switch and an electrically opened and closed cleaning water pipeline are provided before the pipeline inlet of the electromagnetic heating pipeline. The water flow switch is linked with the electromagnetic coil. The cleaning water pipeline is located between the feed pump and the temporary storage tank. A temporary storage tank outlet electromagnetic valve is provided between the temporary storage tank outlet and the cleaning water pipeline. And in step S4, the electromagnetic coil is controlled to work only when the water flow switch set in the electromagnetic heating pipeline detects slurry; when the slurry level in the temporary storage tank drops to a preset low level, the outlet solenoid valve of the temporary storage tank is controlled to close, the cleaning water pipeline is controlled to open to let water in, and the feed pump delivers the cleaning water to the rear end to clean the electromagnetic heating pipeline and the horizontal centrifuge cavity.

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