A pretreatment device and method for sorting and removing impurities from wet garbage before preparing carbon source

Abstract

The present invention discloses a pretreatment device and method for sorting and removing impurities before preparing carbon sources from wet garbage, relates to the technical field of wet garbage pretreatment, and comprises a pretreatment equipment body and a controller. The pretreatment equipment body comprises a box body, a classification component is arranged inside the box body, a sterilization component is arranged at the bottom of the classification component, and a crushing component and a recycling component are respectively installed on the sides of the box body. The classification component can classify part of recyclable garbage and wet garbage, the sterilization component can sterilize the wet garbage, the crushing component can crush the wet garbage, and the recycling component can recycle the recyclable garbage. Therefore, when the device is in use, the classification component can simply classify the wet garbage, the recycling component can pre-store oil and recyclables, and the wet garbage after the sterilization component will be transmitted to the crushing component, and the wet garbage will be crushed by the crushing component, so as to facilitate the subsequent carbon source preparation of the wet garbage.

Description

Technical Field

[0001] The invention relates to the technical field of wet garbage pretreatment, and in particular to a device and method for pretreatment of wet garbage for sorting and removing impurities before preparing carbon sources. Background Art

[0002] Wet garbage has high organic matter content, high water content, rich nutrition and is easy to rot. Improper treatment will cause serious pollution to the social environment and endanger human health. Traditional food waste treatment methods include landfill, incineration and direct discharge, which can no longer meet the needs of sustainable development.

[0003] However, due to classification reasons, some of the existing wet garbage will contain certain recyclable garbage, which will not only make it impossible to recycle the recyclable garbage, but also make it impossible to completely prepare the subsequent wet garbage when preparing carbon sources. Summary of the invention

[0004] The purpose of the present invention is to provide a pretreatment device and method for sorting and removing impurities from wet garbage before preparing carbon sources, so as to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pretreatment device for sorting and removing impurities from wet garbage before preparing carbon sources, comprising a pretreatment equipment body and a controller, the pretreatment equipment body comprising a box body, a classification component is arranged inside the box body, a sterilization component is arranged at the bottom of the classification component, a crushing component and a recycling component are respectively installed on the sides of the box body, the classification component can classify part of the recyclable garbage from the wet garbage, the sterilization component can disinfect the wet garbage, the crushing component can crush the wet garbage, and the recycling component can recycle the recyclable garbage.

[0006] Furthermore, the classification component includes a limit ring, a classification block and a classification motor, the limit ring is installed inside the box, the classification block is installed at the bottom of the limit ring, the classification motor is installed outside the box, the output end of the classification motor is connected to the classification block, and the other end of the classification block is connected to the inner wall of the box through a bearing, the limit ring and the classification block cooperate with each other, and a rubber ring is provided at the contact between the limit ring and the classification block.

[0007] Furthermore, two groups of guide tubes are installed inside the box body, and the two groups of guide tubes are respectively matched with the classification blocks. The other ends of the guide tubes are connected to the recovery component. Multiple groups of classification ports are opened on two opposite surfaces of the classification block. A temporary storage space is opened inside the classification block. An electromagnet is set on the inner wall of the temporary storage space. Multiple groups of classification ports are connected to the temporary storage space, and the electromagnet is connected to the controller.

[0008] Furthermore, a vibration component is provided at the bottom of the sterilization component, the sterilization component includes multiple groups of sterilization chambers, multiple groups of heating tubes are installed in the sterilization chamber liner, liquid is filled in the sterilization chamber liner, a temperature sensor is installed inside the box body, the temperature sensor is connected to the controller, a drain port is opened on one side of the box body, the drain port and the recovery component are located on the same side, the drain port is located above the recovery component, and the drain port and the upper end of the sterilization chamber are parallel to each other.

[0009] 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. The limiting sleeve has an opening facing the bottom of the box body. A vibration spring is installed inside the limiting sleeve. One end of the vibration spring is connected to the closed end of the limiting sleeve. A vibration magnet is installed at the other end of the vibration spring. A matching magnet is installed at the output end of the vibration cylinder. The matching magnet and the vibration magnet cooperate with each other.

[0010] Furthermore, a pump body is installed outside the box body, the input end of the pump body is located inside the sterilization chamber, and the output end of the pump body is located inside the crushing assembly. The crushing assembly includes a crushing box, a crushing motor and multiple groups of crushing wheels. The multiple groups of crushing wheels are installed inside the crushing box through bearings, and the crushing wheels are located outside the crushing box. One end is respectively equipped with a pulley, and the crushing motor is installed outside the crushing box. The output end of the crushing motor is also equipped with a pulley, and belts are arranged between the multiple groups of pulleys.

[0011] Furthermore, the recycling component includes a recycling box, which is installed on one side of the box body where the discharge port is opened. Both sides of the recycling box are respectively connected to guide pipes. The recycling box can recycle metal waste, floating objects and oil.

[0012] Furthermore, the controller is installed on the side of the pre-processing equipment body, and a control panel is installed on the side of the controller.

[0013] Further, S1, placing wet garbage raw materials into the box;

[0014] S2. Recycling recyclable waste in wet waste;

[0015] S3. Disinfect and sterilize wet garbage;

[0016] S4, crushing the disinfected wet garbage;

[0017] S5. Store the crushed wet garbage in a low-temperature box.

[0018] Further, the S1 includes S11, putting roughly classified wet garbage into the box in a quantitative manner, and the S11 includes S111, the quantitative wet garbage ratio is starch: cellulose: fat = 4:4:2;

[0019] The S2 includes S21, recycling iron filings, waste oil and recyclable floating objects in the wet garbage into a recycling box;

[0020] The S3 includes S31, the wet garbage needs to be pasteurized at 65°C for 1 hour;

[0021] The S4 includes S41, crushing the wet garbage into particles ≤50 mm in size;

[0022] The S5 includes S51, and the temperature in the low temperature box is between 0°C and 4°C.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. When in use, the device can perform simple separation of mixed wet garbage, first sort out and recycle magnetic metals in the wet garbage, then clean and recycle oil, plastic products and floating objects in the wet garbage, and reuse the recyclable garbage in the future, thereby reducing resource consumption;

[0025] 2. Through the classification component of the device, not only can the wet garbage be simply classified, but also the larger and longer wet garbage can be squeezed, and then some of the wet garbage can be squeezed off. Before crushing the wet garbage, the larger and longer wet garbage can be squeezed into smaller wet garbage first, so that the wet garbage can be crushed into a suitable state when it is convenient to crush.

[0026] 3. The wet garbage that has passed the classification component will enter the sterilization component, and the sterilization component can perform high-temperature sterilization on the wet garbage. When in use, the sterilization component adopts pasteurization to sterilize the wet garbage. When the sterilization component is sterilizing the wet garbage, the vibration component at the bottom of the sterilization component can vibrate the wet garbage in the sterilization bin. When the vibration component vibrates the wet garbage, the oil adsorbed on the wet garbage will float upward until it floats on the surface of the liquid. At the same time, it can loosen the wet garbage and allow plastic products to float on the surface of the liquid, thereby facilitating the recycling of oil and plastic products and preventing oil and plastic products from affecting the purity of carbon source preparation from wet garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the axonometric structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the present invention in cross section;

[0029] Figure 3 It is a cross-sectional structural schematic diagram of the box body, sterilization chamber, crushing box and recycling box of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure inside the box of the present invention;

[0031] Figure 5 It is a schematic diagram of the matching structure of the guide tube and the classification block of the present invention;

[0032] Figure 6 For the present invention Figure 2 An enlarged schematic diagram of the area "A" in the figure;

[0033] Figure 7 For the present invention Figure 3 An enlarged schematic diagram of the area "B" in the figure;

[0034] Figure 8 It is a schematic diagram of the workflow of the present invention.

[0035] In the figure: 1. Pretreatment equipment body; 11. Box body; 12. Guide tube; 13. Pump body; 2. Classification component; 21. Limiting ring; 22. Classification block; 221. Classification port; 222. Temporary storage space; 23. Classification motor; 3. Sterilization component; 31. Sterilization bin; 32. Excretion port; 4. Crushing component; 41. Crushing box; 42. Crushing motor; 43. Crushing wheel; 5. Recovery component; 51. Recovery box; 6. Vibration component; 61. Limiting sleeve; 62. Vibration cylinder; 621. Matching magnet; 63. Vibration spring; 64. Vibration magnet; 7. Controller. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example: Figure 1-Figure 8 As shown, the present invention provides a pretreatment device and method for sorting and removing impurities before preparing carbon sources from wet garbage, including a pretreatment device body 1 and a controller 7. The pretreatment device body 1 includes a box body 11, a classification component 2 is arranged inside the box body 11, a sterilization component 3 is arranged at the bottom of the classification component 2, and a crushing component 4 and a recycling component 5 are respectively installed on the side of the box body 11. The classification component 2 can classify part of the recyclable garbage and the wet garbage, the sterilization component 3 can sterilize the wet garbage, the crushing component 4 can crush the wet garbage, and the recycling component 5 can recycle the recyclable garbage;

[0038] Therefore, when the device is in use, the wet garbage needs to be first placed in the pretreatment equipment body 1. After the pretreatment equipment body 1, the wet garbage is pre-processed before the carbon source is prepared. When it is used specifically, the wet garbage entering the box body 11 will first pass through the classification component 2. Through the classification component 2, the iron filings remaining in the wet garbage can be recovered, thereby realizing the rational use of resources. After that, the wet garbage after classification will be discharged into the sterilization component 3. After the sterilization component 3, the pasteurization method can be used to disinfect and sterilize the wet garbage, so that the bacteria in the wet garbage can be eliminated. While sterilizing the wet garbage, the oil attached to the wet garbage and the recyclables remaining in the wet garbage can be recycled, and the recyclable garbage and oil will be excreted into the recovery component 5, and the oil and recyclables will be pre-stored through the recovery component 5. The wet garbage after the sterilization component 3 will be transmitted to the crushing component 4, and the wet garbage will be crushed through the crushing component 4, thereby facilitating the subsequent carbon source preparation of the wet garbage.

[0039] like Figure 2-Figure 3 As shown, in this embodiment, specifically, the classification component 2 includes a limit ring 21, a classification block 22 and a classification motor 23, the limit ring 21 is installed inside the box 11, the classification block 22 is installed at the bottom of the limit ring 21, the classification motor 23 is installed outside the box 11, the output end of the classification motor 23 is connected to the classification block 22, and the other end of the classification block 22 is connected to the inner wall of the box 11 through a bearing, the limit ring 21 and the classification block 22 cooperate with each other, and a rubber ring is provided at the contact between the limit ring 21 and the classification block 22;

[0040] When in use, the classification component 2 of the device can perform simple classification of wet garbage, and can recycle some iron filings and other magnetic metal materials remaining in the wet garbage, so as to prevent affecting the effect of carbon source preparation. When in use, the wet garbage enters the box body 11 and is blocked above the box body 11 by the classification block 22. When the amount of wet garbage put in reaches a sufficient amount, the classification motor 23 will drive the classification block 22 to rotate, but the rotation angle of the classification block 22 will reciprocate between 0-180°, so that the wet garbage can slowly pass through the classification block 22, preventing too much wet garbage from entering at one time, and failing to temporarily store the magnetic metal, effectively ensuring the classification efficiency of the classification block 22.

[0041] like Figure 1 and Figure 5-Figure 6As shown, in this embodiment, specifically, two groups of guide tubes 12 are installed inside the box 11, and the two groups of guide tubes 12 are respectively matched with the classification block 22, and the other end of the guide tube 12 is connected to the recovery component 5. A plurality of classification ports 221 are provided on two opposite surfaces of the classification block 22, and a temporary storage space 222 is provided inside the classification block 22. An electromagnet is provided on the inner wall of the temporary storage space 222, and the plurality of classification ports 221 are connected to the temporary storage space 222, and the electromagnet is connected to the controller 7;

[0042] When wet garbage passes through the classification block 22, it will first enter the interior of the classification block 22 from multiple classification ports 221. Magnetic metals will be confined in the temporary storage space 222 and attracted by the electromagnet, while non-magnetic garbage will pass through the classification block 22 and enter the sterilization component 3. When it is necessary to discharge the magnetic metal, it is only necessary to align the classification port 221 with the interface of the guide tube 12. When the classification port 221 on one side is aligned with the guide tube 12, the temporary storage space 222 will be in an inclined state, thereby better transporting the garbage. After alignment, the controller 7 will automatically cut off the power to the electromagnet so that the electromagnet no longer attracts magnetic metals. Therefore, when the device is in use, it can better recycle recyclable garbage and save certain resources.

[0043] like Figure 2-Figure 4 As shown, in this embodiment, specifically, a vibration component 6 is provided at the bottom of the sterilization component 3, the sterilization component 3 includes a plurality of sterilization chambers 31, a plurality of heating tubes are installed in the inner liner of the sterilization chamber 31, the inner liner of the sterilization chamber 31 is filled with liquid, a temperature sensor is installed inside the box 11, the temperature sensor is connected to the controller 7, a drain port 32 is provided on one side of the box 11, the drain port 32 and the recovery component 5 are located on the same side, the drain port 32 is located above the recovery component 5, and the drain port 32 and the upper end of the sterilization chamber 31 are parallel to each other;

[0044] When in use, the sterilization component 3 can pasteurize the wet garbage and fully disinfect and sterilize the wet garbage. At the same time, the vibration component 6 can vibrate the wet garbage to separate the oil carried on the surface of the wet garbage from the wet garbage, so that the oil floats to the surface of the liquid. At the same time, some plastics and disposable tableware in the wet garbage will also float above the liquid. When the liquid exceeds the discharge port 32, the excess part will enter the recovery component 5, and the recovery component 5 can recycle garbage such as oil and plastic that cannot be made into carbon sources.

[0045] like Figure 7As shown, in this embodiment, specifically, 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 limiting sleeve 61 opens toward the bottom of 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, and a matching magnet 621 is installed at the output end of the vibration cylinder 62, and the matching magnet 621 cooperates with the vibration magnet 64;

[0046] When in use, the vibration component 6 of the device can vibrate the wet garbage in the sterilization component 3, and the oil carried on the surface of the wet garbage can be separated from the wet garbage through the vibration component 6. When in use, the vibration cylinder 62 will carry the matching magnet 621 up or down. When the matching magnet 621 is attracted to the vibration magnet 64, the vibration cylinder 62 will drive the matching magnet 621 to move downward, so that the matching magnet 621 can be separated from the vibration magnet 64, and then the vibration spring 63 can be pulled. When the pulling force of the vibration spring 63 is greater than the attraction between the matching magnet 621 and the vibration magnet 64, the matching magnet 621 will be separated from the vibration magnet 64, and then the rebound force of the vibration spring 63 will hit the limiting sleeve 61 and the bottom of the sterilization bin 31, thereby vibrating the wet garbage in the sterilization bin 31. When the device is in use, it can reduce the substances that cannot be used to prepare carbon sources, so that the prepared carbon sources are purer.

[0047] like Figure 1-Figure 4 As shown, in this embodiment, specifically, a pump body 13 is installed outside the box body 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 component 4, and the crushing component 4 includes a crushing box 41, a crushing motor 42 and multiple groups of crushing wheels 43, multiple groups of the crushing wheels 43 are installed inside the crushing box 41 through bearings, and the crushing wheels 43 are located outside the crushing box 41. One end is respectively installed with a pulley, and the crushing motor 42 is installed outside the crushing box 41. The output end of the crushing motor 42 is also installed with a pulley, and a belt is provided between the multiple groups of the pulleys;

[0048] After the wet garbage is pasteurized, the pump body 13 located outside the box body 11 will suck the wet garbage in the sterilization chamber 31. Because it has passed through the classification component 2, some larger wet garbage will be squeezed and segmented, making the total volume smaller, and then the sterilized wet garbage can be sucked through the pump body 13, and the wet garbage can be transferred to the crushing box 41 through the pump body 13, and the wet garbage can be crushed by crushing. When used specifically, the pump body 13 can transfer the wet garbage to the top of multiple groups of crushing wheels 43. Before that, the controller 7 will first control the crushing motor 42 to drive the pulley to rotate, and then drive the crushing wheel 43, so that the high-speed rotating crushing wheel 43 crushes the wet garbage.

[0049] like Figure 1-Figure 2 As shown, in this embodiment, specifically, the recovery component 5 includes a recovery box 51, which is installed on the side of the box body 11 where the discharge port 32 is opened, and the two sides of the recovery box 51 are respectively connected to the guide pipe 12, and the recovery box 51 can recycle metal waste, floating objects and oil;

[0050] The recovery component 5 of the device can mainly recycle oil, plastic, floating objects and magnetic metals present in wet garbage. When in use, the recovery box 51 can receive the liquid discharged from the discharge port 32, and the liquid will carry oil, floating objects and plastics. At the same time, because the two sides of the recovery box 51 are connected to the guide tube 12, the metal temporarily stored in the classification component 2 will also be transferred to the recovery box 51, so as to better recycle and separate the garbage that cannot be used to prepare carbon sources in the wet garbage.

[0051] like Figure 1 As shown, in this embodiment, specifically, the controller 7 is installed on the side of the pre-processing equipment body 1, and a control panel is installed on the side of the controller 7;

[0052] Therefore, when the device is in use, the controller 7 can control the entire pretreatment equipment body 1, and a separate device in the pretreatment equipment body 1 can also be controlled separately. The staff can observe the pretreatment equipment body 1 through the control panel on the controller 7, and the staff can also operate the equipment through the control panel.

[0053] like Figure 8 As shown, in this embodiment, specifically, S1, putting wet garbage raw materials into the box;

[0054] S2. Recycling recyclable waste in wet waste;

[0055] S3. Disinfect and sterilize wet garbage;

[0056] S4, crushing the disinfected wet garbage;

[0057] S5. Store the crushed wet garbage in a low-temperature box.

[0058] In this embodiment, specifically, S1 includes S11, putting roughly classified wet garbage into the box in a quantitative manner, and S11 includes S111, the quantitative wet garbage ratio is starch: cellulose: fat = 4:4:2;

[0059] The S2 includes S21, recycling iron filings, waste oil and recyclable floating objects in the wet garbage into a recycling box;

[0060] The S3 includes S31, the wet garbage needs to be pasteurized at 65°C for 1 hour;

[0061] The S4 includes S41, crushing the wet garbage into particles ≤50 mm in size;

[0062] The S5 includes S51, and the temperature in the low temperature box is between 0°C and 4°C.

[0063] Working principle: When the device is in use, the wet garbage needs to be put into the pretreatment equipment body 1 first. After the pretreatment equipment body 1, the wet garbage is pre-processed before the carbon source preparation. When it is used specifically, the wet garbage entering the box body 11 will first pass through the classification component 2. Through the classification component 2, the iron filings remaining in the wet garbage can be recovered, thereby realizing the rational use of resources. After that, the wet garbage after classification will be discharged into the sterilization component 3. After the sterilization component 3, the pasteurization method can be used to disinfect and sterilize the wet garbage, so that the bacteria in the wet garbage can be eliminated. While sterilizing the wet garbage, the oil attached to the wet garbage and the recyclables remaining in the wet garbage can be recycled, and the recyclable garbage and oil will be excreted into the recovery component 5, and the oil and recyclables will be pre-stored through the recovery component 5. The wet garbage after the sterilization component 3 will be transmitted to the crushing component 4, and the wet garbage will be crushed through the crushing component 4, thereby facilitating the subsequent carbon source preparation of the wet garbage.

[0064] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A pretreatment device for sorting and removing impurities from wet garbage before preparing carbon sources, comprising a pretreatment device body (1) and a controller (7), characterized in that: The pretreatment equipment body (1) comprises a box (11), wherein a classification component (2) is arranged inside the box (11), a sterilization component (3) is arranged at the bottom of the classification component (2), and a crushing component (4) and a recycling component (5) are respectively installed on the side of the box (11), wherein the classification component (2) can classify part of the recyclable garbage and the wet garbage, the sterilization component (3) can sterilize the wet garbage, the crushing component (4) can crush the wet garbage, and the recycling component (5) can recycle the recyclable garbage; A vibration component (6) is arranged at the bottom of the sterilization component (3), the sterilization component (3) comprises a plurality of sterilization chambers (31), a plurality of heating tubes are installed in the inner tank of the sterilization chamber (31), the inner tank of the sterilization chamber (31) is filled with liquid, a temperature sensor is installed inside the box body (11), the temperature sensor is connected to the controller (7), a drainage port (32) is opened on one side of the box body (11), the drainage port (32) and the recovery component (5) are located on the same side, the drainage port (32) is located above the recovery component (5), and the drainage port (32) and the upper end of the sterilization chamber (31) are parallel to each other; The vibration assembly (6) comprises 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 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); the other end of the vibration spring (63) is installed with a vibration magnet (64); the output end of the vibration cylinder (62) is installed with a matching magnet (621); the matching magnet (621) and the vibration magnet (64) cooperate with each other; The classification component (2) comprises a limit ring (21), a classification block (22) and a classification motor (23); the limit ring (21) is installed inside the box (11); the classification block (22) is installed at the bottom of the limit ring (21); the classification motor (23) is installed outside the box (11); the output end of the classification motor (23) is connected to the classification block (22); the other end of the classification block (22) is connected to the inner wall of the box (11) via a bearing; the limit ring (21) and the classification block (22) cooperate with each other; a rubber ring is provided at the contact point between the limit ring (21) and the classification block (22); Two groups of guide tubes (12) are installed inside the box (11), the two groups of guide tubes (12) are matched with the classification block (22) respectively, the other end of the guide tube (12) is connected to the recovery component (5), a plurality of groups of classification ports (221) are provided on two opposite surfaces of the classification block (22), a temporary storage space (222) is provided inside the classification block (22), an electromagnet is provided on the inner wall of the temporary storage space (222), the plurality of groups of classification ports (221) are connected to the temporary storage space (222), and the electromagnet is connected to the controller (7); A pump body (13) is installed outside the box body (11); the input end of the pump body (13) is located inside the sterilization chamber (31); the output end of the pump body (13) is located inside the crushing assembly (4); the crushing assembly (4) comprises a crushing box (41), a crushing motor (42) and a plurality of crushing wheels (43); the plurality of crushing wheels (43) are installed inside the crushing box (41) via bearings; a belt pulley is installed at one end of the crushing wheel (43) located outside the crushing box (41); the crushing motor (42) is installed outside the crushing box (41); a belt pulley is also installed at the output end of the crushing motor (42); belts are provided between the plurality of belt pulleys; The recovery component (5) comprises a recovery box (51), the recovery box (51) being installed on a side of the box body (11) where a discharge port (32) is opened, and both sides of the recovery box (51) are respectively connected to the guide pipe (12), and the recovery box (51) can recover metal waste, floating objects and oil.

2. The device for sorting and removing impurities from wet garbage before preparing carbon sources according to claim 1 is characterized in that: The controller (7) is installed on the side of the pre-treatment equipment body (1), and a control panel is installed on the side of the controller (7).

3. A pretreatment method for a wet garbage sorting and impurity removal pretreatment device before preparing carbon sources according to claim 2, characterized in that: S1. Put wet garbage raw materials into the box; S2. Recycling recyclable waste in wet waste; S3. Disinfect and sterilize wet garbage; S4, crushing the disinfected wet garbage; S5. Store the crushed wet garbage in a low-temperature box.

4. The pretreatment method of the wet garbage sorting and impurity removal pretreatment device before preparing carbon source according to claim 3 is characterized by: The S1 includes S11, putting roughly classified wet garbage into the box in a quantitative manner, and the S11 includes S111, the quantitative wet garbage ratio is starch: cellulose: fat = 4:4:2; The S2 includes S21, recycling iron filings, waste oil and recyclable floating objects in the wet garbage into a recycling box; The S3 includes S31, the wet garbage needs to be pasteurized at 65°C for 1 hour; The S4 includes S41, crushing the wet garbage into particles ≤50 mm in size; The S5 includes S51, and the temperature in the low temperature box is between 0°C and 4°C.

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