Pretreatment device and method for sorting and removing impurities before wet waste is prepared into carbon source

Abstract

A pretreatment device and method for sorting and removing impurities before wet waste is prepared into a carbon source. The device comprises a pretreatment apparatus main body (1) and a controller (7). The pretreatment apparatus main body (1) comprises a box body (11), in which a classification assembly (2) is provided, a sterilization assembly (3) being provided at the bottom of the classification assembly (2). A crushing assembly (4) and a recycling assembly (5) are respectively mounted on side surfaces of the box body (11). The classification assembly (2) can classify some recyclable waste and wet waste, The sterilization assembly (3) can disinfect the wet waste. The crushing assembly (4) can crush the wet waste. The recycling assembly (5) can recycle the recyclable waste.

Description

A pretreatment device and method for sorting and removing impurities from wet waste before preparing carbon sources. Technical Field

[0001] This invention relates to the field of wet waste pretreatment technology, specifically to a sorting and impurity removal pretreatment device and method for wet waste before preparing carbon sources. Background Technology

[0002] With the continuous development of the global economy and the constant improvement of people's living standards, wet waste has become a major social byproduct. Currently, wet waste accounts for approximately 25%-40% of the total amount of household waste in my country. It is estimated that by 2025, the world will generate approximately 2.2 billion tons of wet waste.

[0003] Wet waste has a high organic content and water content, is rich in nutrients, and is easily perishable. Improper handling can cause serious pollution to the environment and harm human health. Traditional food waste disposal methods, including landfill, incineration, and direct discharge, are no longer sufficient to meet the needs of sustainable development.

[0004] However, due to classification reasons, some wet waste contains recyclable waste, which not only makes it impossible to recycle the recyclable waste, but also makes it impossible to completely prepare carbon sources in the subsequent wet waste. Summary of the Invention

[0005] The purpose of this invention is to provide a sorting and impurity removal pretreatment device and method for wet waste before preparing carbon sources, so as to solve the problems raised in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pretreatment device for sorting and removing impurities before preparing carbon sources from wet waste, comprising a pretreatment equipment body and a controller. The pretreatment equipment body includes a box, inside which a sorting component is provided. A sterilization component is provided at the bottom of the sorting component. A crushing component and a recycling component are respectively installed on the sides of the box. The sorting component can separate some recyclable waste from wet waste. The sterilization component can sterilize the wet waste. The crushing component can crush the wet waste. The recycling component can recycle the recyclable waste.

[0007] Furthermore, the sorting component includes a limiting ring, a sorting block, and a sorting motor. The limiting ring is installed inside the housing, the sorting block is installed at the bottom of the limiting ring, and the sorting motor is installed outside the housing. The output end of the sorting motor is connected to the sorting block, and the other end of the sorting block is connected to the inner wall of the housing through a bearing. The limiting ring and the sorting block cooperate with each other, and a rubber ring is provided at the contact point between the limiting ring and the sorting block.

[0008] Furthermore, two sets of guide tubes are installed inside the box, and the two sets of guide tubes are respectively matched with the sorting blocks. The other end of the guide tubes is connected to the recycling component. Multiple sets of sorting ports are opened on the two opposite surfaces of the sorting blocks. A temporary storage space is opened inside the sorting blocks. An electromagnet is installed on the inner wall of the temporary storage space. The multiple sets of sorting ports are connected to the temporary storage space. The electromagnet is connected to the controller.

[0009] Furthermore, the sterilization component is equipped with a vibration component at its bottom, and includes multiple sterilization chambers. Multiple heating tubes are installed inside the sterilization chambers, and liquid is poured into the inner chambers. A temperature sensor is installed inside the chamber and connected to a controller. A drain port is provided on one side of the chamber, and the drain port is located on the same side as the recovery component. The drain port is located above the recovery component and is parallel to the upper end of the sterilization chamber.

[0010] Furthermore, the vibration assembly includes a limiting sleeve and a vibration cylinder. The limiting sleeve is installed at the center of the bottom surface of the sterilization chamber, with the opening of the limiting sleeve facing downwards. A vibration spring is installed inside the limiting sleeve, with one end of the vibration spring connected to the closed end of the limiting sleeve and the other end of the vibration spring equipped with a vibration magnet. A matching magnet is installed at the output end of the vibration cylinder, and the matching magnet cooperates with the vibration magnet.

[0011] Furthermore, a pump body is installed outside the housing. The pump body's input end is located inside the sterilization chamber, and its output end is located inside the crushing assembly. The crushing assembly includes a crushing box, a crushing motor, and multiple sets of crushing wheels. The multiple sets of crushing wheels are installed inside the crushing box via bearings. Each crushing wheel has a pulley installed at one end outside the crushing box. The crushing motor is installed outside the crushing box, and its output end is also equipped with a pulley. A belt is provided between the multiple sets of pulleys.

[0012] Furthermore, the recycling assembly includes a recycling bin, which is installed on the side of the bin body with a drain outlet. Both sides of the recycling bin are connected to guide pipes, and the recycling bin can recycle metal scrap, floating matter, and oil.

[0013] Furthermore, the controller is mounted on the side of the main body of the pretreatment equipment, and a control panel is mounted on the side of the controller.

[0014] Furthermore, S1, the wet waste material is placed into the container;

[0015] S2. Collect recyclable waste present in wet waste;

[0016] S3. Disinfect and sterilize wet waste;

[0017] S4. Crush the disinfected wet waste.

[0018] S5. Store the crushed wet waste in a low-temperature chamber.

[0019] Furthermore, S1 includes S11, quantitatively disposing of roughly sorted wet waste into the bin, and S11 includes S111, wherein the quantitative ratio of wet waste is starch: cellulose: fat = 4:4:2;

[0020] S2 includes S21, which involves collecting iron filings, waste oil, and recyclable floating matter from the wet waste into a recycling bin;

[0021] S3 includes S31, where wet waste needs to be pasteurized at 65°C for 1 hour;

[0022] S4 includes S41, crushing wet waste into particles with a diameter of ≤50mm;

[0023] S5 includes S51, where the temperature inside the low-temperature chamber is between 0°C and 4°C.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. When in use, this device can perform simple separation of mixed wet waste. It can first sort and recycle the magnetic metals in the wet waste, and then clean and recycle the oil, plastic products and floating objects in the wet waste. The recyclable waste can then be reused, thereby reducing resource consumption.

[0026] 2. The sorting components of this device can not only perform simple sorting of wet waste, but also compress larger and longer pieces of wet waste, thereby breaking some of the wet waste. Before crushing the wet waste, the larger and longer pieces of wet waste are first compressed into smaller pieces, making it easier to crush the wet waste into a suitable state during crushing.

[0027] 3. The wet waste from the sorting components then enters the sterilization component, where it undergoes high-temperature sterilization. Specifically, the sterilization component uses pasteurization to sterilize the wet waste. During sterilization, a vibration component at the bottom of the sterilization component vibrates the wet waste in the sterilization chamber. This vibration causes the oil adsorbed on the wet waste to float upwards until it reaches the top of the liquid. It also loosens the wet waste, allowing plastic products to float on the surface as well, facilitating the recycling of oil and plastic products and preventing them from affecting the purity of the carbon source prepared from the wet waste. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the isometric structure of the present invention;

[0029] Figure 2 is a cross-sectional structural schematic diagram of the present invention;

[0030] Figure 3 is a cross-sectional structural diagram of the box body, sterilization chamber, crushing chamber and recycling chamber of the present invention;

[0031] Figure 4 is a schematic diagram of the internal structure of the box body of the present invention;

[0032] Figure 5 is a schematic diagram of the cooperation structure between the guide tube and the sorting block of the present invention;

[0033] Figure 6 is an enlarged schematic diagram of point "A" in Figure 2 of this invention;

[0034] Figure 7 is an enlarged schematic diagram of point "B" in Figure 3 of this invention;

[0035] Figure 8 is a schematic diagram of the workflow of the present invention.

[0036] In the diagram: 1. Main body of pretreatment equipment; 11. Box; 12. Guide tube; 13. Pump body; 2. Sorting component; 21. Limiting ring; 22. Sorting block; 221. Sorting port; 222. Temporary storage space; 23. Sorting motor; 3. Sterilization component; 31. Sterilization chamber; 32. Discharge port; 4. Crushing component; 41. Crushing box; 42. Crushing motor; 43. Crushing wheel; 5. Recycling component; 51. Recycling box; 6. Vibration component; 61. Limiting sleeve; 62. Vibration cylinder; 621. Matching magnet; 63. Vibration spring; 64. Vibration magnet; 7. Controller. Detailed Implementation

[0037] 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.

[0038] Example: As shown in Figures 1-8, the present invention provides a pretreatment device and method for sorting and removing impurities before preparing carbon sources from wet waste, including a pretreatment equipment body 1 and a controller 7. The pretreatment equipment body 1 includes a box 11, inside which is provided a sorting component 2. A sterilization component 3 is provided at the bottom of the sorting component 2. A crushing component 4 and a recycling component 5 are respectively installed on the sides of the box 11. The sorting component 2 can separate some recyclable waste from wet waste. The sterilization component 3 can sterilize the wet waste. The crushing component 4 can crush the wet waste. The recycling component 5 can recycle the recyclable waste.

[0039] Therefore, when using this device, the wet waste first needs to be put into the pretreatment equipment body 1. After passing through the pretreatment equipment body 1, the wet waste is pre-processed before carbon source preparation. In specific use, the wet waste entering the box 11 first passes through the sorting component 2. Through the sorting component 2, the residual iron filings in the wet waste can be recycled, thereby realizing the rational utilization of resources. After sorting, the wet waste is discharged into the sterilization component 3. After passing through the sterilization component 3, the wet waste is disinfected and sterilized by pasteurization, so that the bacteria in the wet waste can be eliminated. At the same time as sterilizing the wet waste, the oil attached to the wet waste and the recyclable materials remaining in the wet waste can be recycled. The recyclable waste and oil are discharged into the recycling component 5. The recycling component 5 pre-stores the oil and recyclable materials. After passing through the sterilization component 3, the wet waste is conveyed to the crushing component 4. Through the crushing component 4, the wet waste is crushed, thereby facilitating the subsequent carbon source preparation of the wet waste.

[0040] As shown in Figures 2 and 3, in this embodiment, the sorting component 2 specifically includes a limiting ring 21, a sorting block 22, and a sorting motor 23. The limiting ring 21 is installed inside the housing 11, the sorting block 22 is installed at the bottom of the limiting ring 21, and the sorting motor 23 is installed outside the housing 11. The output end of the sorting motor 23 is connected to the sorting block 22, and the other end of the sorting block 22 is connected to the inner wall of the housing 11 through a bearing. The limiting ring 21 and the sorting block 22 cooperate with each other, and a rubber ring is provided at the contact point between the limiting ring 21 and the sorting block 22.

[0041] When in use, the sorting component 2 of this device can perform simple sorting of wet waste and recover some residual iron filings and other magnetic metals, thereby preventing them from affecting the carbon source preparation effect. In specific use, wet waste enters the container 11 and is blocked above the container 11 by the sorting block 22. When the amount of wet waste is sufficient, the sorting motor 23 will drive the sorting block 22 to rotate. However, the rotation angle of the sorting block 22 will reciprocate between 0-180°, so that the wet waste can slowly pass through the sorting block 22, preventing too much wet waste from entering at once and making it impossible to temporarily store the magnetic metals, thus effectively ensuring the sorting efficiency of the sorting block 22.

[0042] As shown in Figures 1 and 5-6, in this embodiment, specifically, two sets of guide tubes 12 are installed inside the box 11. The two sets of guide tubes 12 are respectively matched with the sorting block 22. The other end of the guide tube 12 is connected to the recycling component 5. Multiple sets of sorting ports 221 are opened on two opposite surfaces of the sorting block 22. A temporary storage space 222 is opened inside the sorting block 22. An electromagnet is provided on the inner wall of the temporary storage space 222. The multiple sets of sorting ports 221 are connected to the temporary storage space 222. The electromagnet is connected to the controller 7.

[0043] When wet waste passes through the sorting block 22, it first enters the interior of the sorting block 22 through multiple sorting ports 221. Magnetic metals are confined within the temporary storage space 222 and attracted by electromagnets, while non-magnetic waste passes through the sorting block 22 and enters the sterilization component 3. When it is necessary to discharge magnetic metals, simply align the sorting port 221 with the interface of the guide tube 12. When one side of the sorting port 221 is aligned with the guide tube 12, the temporary storage space 222 will be tilted, thus better transferring the waste. After alignment, the controller 7 will automatically de-energize the electromagnet, so that the electromagnet no longer attracts magnetic metals. Thus, when the device is in use, it can better recycle recyclable waste and save certain resources.

[0044] As shown in Figures 2-4, in this embodiment, specifically, a vibration component 6 is provided at the bottom of the sterilization component 3. The sterilization component 3 includes multiple sterilization chambers 31. Multiple heating tubes are installed inside the inner liner of the sterilization chamber 31. Liquid is poured into the inner liner of the sterilization chamber 31. A temperature sensor is installed inside the box 11. The temperature sensor is connected to the controller 7. A drain port 32 is opened on one side of the box 11. The drain port 32 is located on the same side as the recovery component 5. The drain port 32 is located above the recovery component 5. The drain port 32 is parallel to the upper end of the sterilization chamber 31.

[0045] When in use, the sterilization component 3 can pasteurize wet waste, thoroughly disinfecting and sterilizing it. At the same time, the vibration component 6 can vibrate the wet waste, separating the oil on the surface of the wet waste from the waste, causing the oil to float to the surface. Meanwhile, some plastics and disposable tableware in the wet waste will also float to the top of the liquid. When the liquid exceeds the discharge port 32, the excess part will enter the recycling component 5. The recycling component 5 can then recycle the oil and plastics, which cannot be made into carbon sources.

[0046] As shown in Figure 7, in this embodiment, specifically, the vibration component 6 includes a limiting sleeve 61 and a vibration cylinder 62. The limiting sleeve 61 is installed at the center of the bottom surface of the sterilization chamber 31, and the opening of the limiting sleeve 61 faces downwards towards the box body 11. A vibration spring 63 is installed inside the limiting sleeve 61. One end of the vibration spring 63 is connected to the closed end of the limiting sleeve 61, and a vibration magnet 64 is installed at the other end of the vibration spring 63. A cooperating magnet 621 is installed at the output end of the vibration cylinder 62, and the cooperating magnet 621 and the vibration magnet 64 cooperate with each other.

[0047] When in use, the vibration component 6 of this device can vibrate the wet waste inside the sterilization component 3. The vibration component 6 can also separate the oil on the surface of the wet waste from the wet waste. In specific use, the vibration cylinder 62 will raise or lower the mating magnet 621. When the mating magnet 621 attracts the vibration magnet 64, the vibration cylinder 62 will drive the mating magnet 621 to move downward, so that the mating magnet 621 can separate from the vibration magnet 64. This will pull the vibration spring 63. When the tension of the vibration spring 63 is greater than the attraction between the mating magnet 621 and the vibration magnet 64, the mating magnet 621 will separate from the vibration magnet 64. Then the rebound force of the vibration spring 63 will hit the limiting sleeve 61 and the bottom of the sterilization chamber 31, thereby vibrating the wet waste inside the sterilization chamber 31. Thus, when the device is in use, it can reduce the amount of substances that cannot be used to prepare carbon sources, making the prepared carbon source purer.

[0048] As shown in Figures 1-4, in this embodiment, specifically, a pump body 13 is installed outside the housing 11. The input end of the pump body 13 is located inside the sterilization chamber 31, and the output end of the pump body 13 is located inside the crushing assembly 4. The crushing assembly 4 includes a crushing box 41, a crushing motor 42, and multiple sets of crushing wheels 43. The multiple sets of crushing wheels 43 are installed inside the crushing box 41 through bearings. Each crushing wheel 43 has a pulley installed at one end outside the crushing box 41. The crushing motor 42 is installed outside the crushing box 41, and a pulley is also installed at the output end of the crushing motor 42. A belt is provided between the multiple sets of pulleys.

[0049] After the wet waste has been pasteurized, the pump 13 located outside the container 11 will suck up the wet waste in the sterilization chamber 31. Because after passing through the sorting component 2, some of the larger wet waste will be squeezed into segments, reducing the overall volume. Then, the pump 13 can suck up the sterilized wet waste and transfer it to the crushing box 41. The wet waste is then crushed by the crushing wheel. In specific use, the pump 13 can transfer the wet waste to the top of multiple crushing wheels 43. Before that, the controller 7 will first control the crushing motor 42 to drive the pulley to rotate, which in turn drives the crushing wheels 43, so that the high-speed rotating crushing wheels 43 crush the wet waste.

[0050] As shown in Figures 1-2, in this embodiment, the recycling component 5 specifically includes a recycling box 51. The recycling box 51 is installed on the side of the box body 11 where the drain port 32 is opened. The two sides of the recycling box 51 are respectively connected to the guide pipe 12. The recycling box 51 can recycle metal waste, floating objects and oil.

[0051] The recycling component 5 of this device is mainly capable of recycling oil, plastic, floating matter and magnetic metals present in wet waste. In specific use, the recycling bin 51 can catch the liquid discharged from the discharge port 32, which carries oil, floating matter and plastic. At the same time, because the recycling bin 51 is connected to the guide pipe 12 on both sides, the metal temporarily stored by the sorting component 2 will also be transferred into the recycling bin 51, thereby better recycling and separating the waste in the wet waste that cannot be used to produce carbon sources.

[0052] As shown in Figure 1, in this embodiment, specifically, the controller 7 is installed on the side of the pretreatment equipment body 1, and the control panel is installed on the side of the controller 7;

[0053] Therefore, when the device is in use, the controller 7 can control the entire pretreatment equipment body 1, and can also control a single device in the pretreatment equipment body 1. The staff can observe the pretreatment equipment body 1 through the control panel on the controller 7, and can also operate the device through the control panel.

[0054] As shown in Figure 8, in this embodiment, specifically, S1, the wet waste raw material is put into the box;

[0055] S2. Collect recyclable waste present in wet waste;

[0056] S3. Disinfect and sterilize wet waste;

[0057] S4. Crush the disinfected wet waste.

[0058] S5. Store the crushed wet waste in a low-temperature chamber.

[0059] In this embodiment, specifically, S1 includes S11, quantitatively disposing of roughly sorted wet waste into the container, wherein S11 includes S111, the quantitative ratio of wet waste is starch: cellulose: fat = 4:4:2;

[0060] S2 includes S21, which involves collecting iron filings, waste oil, and recyclable floating matter from the wet waste into a recycling bin;

[0061] S3 includes S31, where wet waste needs to be pasteurized at 65°C for 1 hour;

[0062] S4 includes S41, crushing wet waste into particles with a diameter of ≤50mm;

[0063] S5 includes S51, where the temperature inside the low-temperature chamber is between 0°C and 4°C.

[0064] Working Principle: When using this device, wet waste is first placed into the pretreatment equipment body 1. After passing through the pretreatment equipment body 1, the wet waste is pre-processed before carbon source preparation. Specifically, the wet waste entering the box 11 first passes through the sorting component 2. Through the sorting component 2, residual iron filings in the wet waste can be recycled, thereby achieving rational utilization of resources. After sorting, the wet waste is discharged into the sterilization component 3. The sterilization component 3 uses pasteurization to disinfect and sterilize the wet waste, eliminating bacteria in the wet waste. While sterilizing the wet waste, the oil attached to the wet waste and the recyclable materials remaining in the wet waste can be recycled. The recyclable waste and oil are discharged into the recycling component 5, where the oil and recyclable materials are pre-stored. After passing through the sterilization component 3, the wet waste is conveyed to the crushing component 4, where the wet waste is crushed, thus facilitating the subsequent carbon source preparation.

[0065] 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. A pretreatment device for sorting and removing impurities before preparing carbon sources from wet waste, comprising a pretreatment equipment body (1) and a controller (7), characterized in that: The pretreatment equipment body (1) includes a box (11), inside which is a sorting component (2), and at the bottom of the sorting component (2) is a sterilization component (3). On the sides of the box (11) are a crushing component (4) and a recycling component (5). The sorting component (2) can sort some recyclable waste and wet waste, the sterilization component (3) can sterilize wet waste, the crushing component (4) can crush wet waste, and the recycling component (5) can recycle recyclable waste. The sterilization component (3) is provided with a vibration component (6) at the bottom. The sterilization component (3) includes multiple sterilization chambers (31). Multiple heating tubes are installed in the inner liner of the sterilization chamber (31). Liquid is poured into the inner liner of the sterilization chamber (31). A temperature sensor is installed inside the box (11). The temperature sensor is connected to the controller (7). A drain port (32) is opened on one side of the box (11). The drain port (32) is located on the same side as the recovery component (5). The drain port (32) is located above the recovery component (5). The drain port (32) is parallel to the upper end of the sterilization chamber (31). The vibration assembly (6) includes a limiting sleeve (61) and a vibration cylinder (62). The limiting sleeve (61) is installed at the center of the bottom surface of the sterilization chamber (31). The opening of the limiting sleeve (61) faces the bottom of the box (11). A vibration spring (63) is installed inside the limiting sleeve (61). One end of the vibration spring (63) is connected to the closed end of the limiting sleeve (61). A vibration magnet (64) is installed at the other end of the vibration spring (63). A matching magnet (621) is installed at the output end of the vibration cylinder (62). The matching magnet (621) and the vibration magnet (64) cooperate with each other.

2. The pretreatment device for sorting and removing impurities before preparing carbon sources from wet waste according to claim 1, characterized in that: The sorting component (2) includes a limiting ring (21), a sorting block (22), and a sorting motor (23). The limiting ring (21) is installed inside the housing (11), the sorting block (22) is installed at the bottom of the limiting ring (21), and the sorting motor (23) is installed outside the housing (11). The output end of the sorting motor (23) is connected to the sorting block (22), and the other end of the sorting block (22) is connected to the inner wall of the housing (11) through a bearing. The limiting ring (21) and the sorting block (22) cooperate with each other, and a rubber ring is provided at the contact point between the limiting ring (21) and the sorting block (22).

3. The pretreatment device for sorting and removing impurities before preparing carbon sources from wet waste according to claim 2, characterized in that: The box (11) is equipped with two sets of guide tubes (12), which are respectively matched with the sorting block (22). The other end of the guide tube (12) is connected to the recycling component (5). Multiple sorting ports (221) are opened on two opposite surfaces of the sorting block (22). A temporary storage space (222) is opened inside the sorting block (22). An electromagnet is provided on the inner wall of the temporary storage space (222). The multiple sorting ports (221) are connected to the temporary storage space (222). The electromagnet is connected to the controller (7).

4. The pretreatment device for sorting and removing impurities before preparing carbon sources from wet waste according to claim 3, characterized in that: A pump body (13) is installed outside the housing (11). The input end of the pump body (13) is located inside the sterilization chamber (31), and the output end of the pump body (13) is located inside the crushing assembly (4). The crushing assembly (4) includes a crushing box (41), a crushing motor (42), and multiple sets of crushing wheels (43). The multiple sets of crushing wheels (43) are installed inside the crushing box (41) by bearings. Each crushing wheel (43) has a pulley installed at one end outside the crushing box (41). The crushing motor (42) is installed outside the crushing box (41), and a pulley is also installed at the output end of the crushing motor (42). A belt is provided between the multiple sets of pulleys.

5. The pretreatment device for sorting and removing impurities before preparing carbon sources from wet waste according to claim 4, characterized in that: The recycling component (5) includes a recycling box (51), which is installed on the side of the box body (11) with a drain port (32). The two sides of the recycling box (51) are connected to guide pipes (12) respectively. The recycling box (51) can recycle metal waste, floating objects and oil.

6. The pretreatment device for sorting and removing impurities before preparing carbon sources from wet waste according to claim 5, characterized in that: The controller (7) is mounted on the side of the main body (1) of the pretreatment equipment, and a control panel is mounted on the side of the controller (7).

7. A pretreatment method for a pretreatment device for sorting and removing impurities before preparing carbon sources from wet waste according to claim 6, characterized in that: S1. Place the wet waste material into the container; S2. Collect recyclable waste present in wet waste; S3. Disinfect and sterilize wet waste; S4. Crush the disinfected wet waste. S5. Store the crushed wet waste in a low-temperature chamber.

8. The pretreatment method of the pretreatment device for sorting and removing impurities before preparing carbon source from wet waste according to claim 7, characterized in that: S1 includes S11, quantitatively disposing of roughly sorted wet waste into the bin, and S11 includes S111, wherein the quantitative ratio of wet waste is starch: cellulose: fat = 4:4:2; S2 includes S21, which involves collecting iron filings, waste oil, and recyclable floating matter from the wet waste into a recycling bin; S3 includes S31, where wet waste needs to be pasteurized at 65°C for 1 hour; S4 includes S41, crushing wet waste into particles with a diameter of ≤50mm; S5 includes S51, where the temperature inside the low-temperature chamber is between 0°C and 4°C.

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