A rural organic solid waste low-temperature pyrolysis treatment system

Abstract

The application discloses a kind of rural organic solid waste low-temperature pyrolysis processing systems, including low-temperature pyrolysis furnace, crushing assembly, crushing assembly, grinding assembly, preheating assembly and control system.The low-temperature pyrolysis furnace is fixedly provided with exhaust pipe for discharging exhaust gas, the exhaust pipe is installed with purification assembly away from the one end of low-temperature pyrolysis furnace;The crushing assembly includes crushing box, two crushing rollers are rotationally arranged in the crushing box, and the crushing knives are arranged on the two crushing rollers in length direction;The crushing assembly includes crushing tube, the shaft is rotationally arranged in the crushing tube, and the crushing knives are arranged on the outer wall of the shaft middle section and located at the outlet below the crushing box and have organic solid waste crushing.Integrated design is adopted, under the premise of meeting waste gas treatment and waste heat utilization, the overall production cost is low, which can be conveniently used in rural areas, without transferring organic solid waste, energy saving and environmental protection and reducing processing cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of organic solid waste treatment, in particular to a rural organic solid waste low-temperature pyrolysis treatment system. BACKGROUND

[0002] We propose a rural organic solid waste low-temperature pyrolysis treatment system, which adopts an integrated design, meets the requirements of waste gas treatment and waste heat utilization, has low overall production cost, can be conveniently used in rural areas, does not need to transport organic solid waste, is energy-saving and environmentally friendly, and reduces treatment cost. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the present application provides a rural organic solid waste low-temperature pyrolysis treatment system, which combines water quality sampling and floating object salvage of rivers, adopts an integrated design, meets the requirements of waste gas treatment and waste heat utilization, has low overall production cost, can be conveniently used in rural areas, does not need to transport organic solid waste, is energy-saving and environmentally friendly, and reduces treatment cost.

[0004] To solve the above technical problems, the present application provides the following technical scheme: a rural organic solid waste low-temperature pyrolysis treatment system, comprising a low-temperature pyrolysis furnace, a crushing assembly, a pulverizing assembly, a grinding assembly, a preheating assembly, and a control system.

[0005] The low-temperature pyrolysis furnace is fixedly provided with an exhaust pipe for discharging waste gas, and the exhaust pipe is provided at one end away from the low-temperature pyrolysis furnace with a purification assembly; the crushing assembly comprises a crushing box, two crushing rollers rotating in opposite directions are arranged in the crushing box, and crushing knives are arranged on the two crushing rollers at intervals along the length direction; the pulverizing assembly comprises a pulverizing pipe fixedly arranged below the crushing box and communicating with the crushing box, a rotating shaft is arranged in the pulverizing pipe, and a pulverizing knife for pulverizing organic solid waste is fixedly sleeved on the middle section of the outer wall of the rotating shaft and located at the outlet below the crushing box; the grinding assembly comprises a grinding box fixedly arranged below the pulverizing pipe, an upper grinding disc is fixedly arranged in the grinding box, and a lower grinding disc is rotatably arranged in the grinding box and cooperates with the upper grinding disc; the preheating assembly comprises a preheating box fixedly arranged between above the low-temperature pyrolysis furnace and below the grinding box, the preheating box communicates with the low-temperature pyrolysis furnace and the grinding box respectively, and the exhaust pipe away from the low-temperature pyrolysis furnace can pass through the preheating box; the control system comprises a controller and a driving motor, the controller is electrically connected with the driving motor through wires and is used for controlling the opening and closing of the driving motor, and the driving motor provides driving force for the rotation of the crushing rollers, the rotating shaft, and the lower grinding disc.

[0006] As a preferred technical scheme of the present application, the purification assembly comprises a settling box fixedly connected above the low-temperature pyrolysis furnace, a connecting pipe and a discharge pipe are respectively communicated and installed on the two sides of the settling box, the connecting pipe is communicated with the end of the exhaust pipe away from the low-temperature pyrolysis furnace, a treatment liquid is injected into the settling box, a filter screen, an adsorption layer and a moisture absorption layer are fixedly connected in the settling box from bottom to top, the connecting pipe is located below the filter screen and extends into the treatment liquid, and the discharge pipe is located above the moisture absorption layer.

[0007] As a preferred technical scheme of the present application, the treatment liquid injected into the settling box is an aqueous solution of a strong alkali weak acid salt, and the adsorption layer is an activated carbon adsorption material.

[0008] As a preferred technical scheme of the present application, the controller is fixedly installed on the front face of the settling box, a reflux pipe is communicated and installed between the discharge pipe and the exhaust pipe, a detector and a first electric control valve electrically connected with the controller are installed in the discharge pipe, a second electric control valve electrically connected with the controller is installed on the reflux pipe, the detector is located close to the settling box, and the first electric control valve is located close to the outlet of the discharge pipe.

[0009] As a preferred technical scheme of the present application, the driving motor is fixedly installed on the top of the settling box, the output shaft of the driving motor is fixedly connected with one end of the rotating shaft, the lower ends of the two ends of the crushing pipe and the two sides of the grinding box are communicated with a discharging pipe, and the outer upper fixing sleeves of the two ends of the rotating shaft are provided with direction-opposed conveying augers.

[0010] As a preferred technical scheme of the present application, the shaft bodies of the two crushing rollers extend to the outside of the crushing box and are fixedly sleeved with gears, a first belt disc is fixedly sleeved on the shaft body of one of the crushing rollers, a double-layer belt disc is fixedly sleeved on the output shaft of the driving motor, and a first transmission belt is arranged in transmission between the double-layer belt disc and the first belt disc.

[0011] As a preferred technical scheme of the present application, a support frame is fixedly connected in the grinding box, a support shaft is rotatably connected to the top of the support frame, the lower grinding disc is fixedly connected to the top end of the support shaft, a worm gear is fixedly sleeved on the outer wall of the support shaft, a worm is rotatably arranged on the right side of the grinding box and engaged with the worm gear, the right end of the worm penetrates through the grinding box and is fixedly sleeved with a second belt disc, and a second transmission belt is arranged in transmission between the second belt disc and the double-layer belt disc.

[0012] As a preferred technical scheme of the present application, the diameters of the first belt disc and the second belt disc are the same and greater than the diameter of the double-layer belt disc.

[0013] As a preferred technical scheme of the present application, the front and rear sides of the preheating box are respectively provided with upper and lower partition plates, the upper and lower partition plates can slide along the inner wall of the preheating box, the left and right sides of the preheating box are fixedly provided with first hydraulic cylinders electrically connected with the controller, the left and right sides of the preheating box are fixedly provided with second hydraulic cylinders electrically connected with the controller and located below the first hydraulic cylinders, the movable ends of the two first hydraulic cylinders are connected with the upper partition plate, and the movable ends of the two second hydraulic cylinders are connected with the lower partition plate.

[0014] As a preferred technical scheme of the present application, the part of the exhaust pipe passing through the preheating box is located between the upper and lower partition plates, and the part of the exhaust pipe passing through the preheating box is provided in a spiral shape.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. The integrated design is adopted, the organic solid waste is crushed, pulverized and ground synchronously by the driving motor, so that the organic solid waste is changed into a powder shape which is easier to pyrolyze, the production cost is low, the organic solid waste can be conveniently used in rural areas, the organic solid waste does not need to be transported, energy saving and environmental protection are achieved, and the processing cost is reduced.

[0017] 2. The organic solid waste is preheated in the preheating box, the heat energy in the waste gas after pyrolysis is effectively utilized, and energy loss is avoided.

[0018] 3. The organic solid waste is intermittently fed and pyrolyzed in the preheating box, the interval time can make the organic solid waste stay in the low-temperature pyrolysis furnace for an appropriate time, and the conditions that the pyrolysis is insufficient due to too short staying time or the equipment efficiency is reduced due to too long staying time are avoided.

[0019] 4. The waste gas generated by pyrolysis is settled in the treatment liquid in the settling box, then passes through the filter screen to leave the dust, then passes through the adsorption layer for further adsorption, then removes the moisture by the moisture absorption layer, and finally the gas discharged from the exhaust pipe can meet the emission standard, so that the environment is not polluted. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure perspective state schematic view of the present application;

[0021] Figure 2 It is a structure rear perspective state schematic view of the present application;

[0022] Figure 3 It is a partial sectional perspective state schematic view of the crushing assembly of the present application;

[0023] Figure 4 It is a connecting sectional perspective state schematic view of the crushing assembly and the grinding assembly of the present application;

[0024] Figure 5It is a schematic diagram of the preheating assembly of the present application in a three-dimensional state.

[0025] Figure 6 It is a schematic diagram of the settling box of the present application in a three-dimensional state.

[0026] Wherein: 100, low-temperature pyrolysis furnace; 200, exhaust pipe; 300, crushing box; 301, crushing roller; 302, crushing knife; 303, gear; 400, pulverizing pipe; 401, rotating shaft; 402, pulverizing knife; 403, discharging pipe; 404, conveying auger; 500, grinding box; 501, upper grinding disc; 502, lower grinding disc; 503, support frame; 504, support shaft; 505, worm gear; 506, worm; 600, preheating box; 601, upper partition plate; 602, lower partition plate; 603, first hydraulic cylinder; 604, second hydraulic cylinder; 700, controller; 701, driving motor; 702, first pulley; 703, double-layer pulley; 704, first transmission belt; 705, second pulley; 706, second transmission belt; 800, settling box; 801, connecting pipe; 802, discharge pipe; 803, filter screen; 804, adsorption layer; 805, moisture absorption layer; 806, return pipe; 807, detector; 808, first electric control valve; 809, second electric control valve. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the following further describes the present application in combination with specific embodiments, but the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application. In the following embodiments, the experimental methods are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified. EMBODIMENT

[0028] As shown in the following Figure 1 - Figure 6 The present embodiment proposes a low-temperature pyrolysis treatment system for rural organic solid waste, which comprises a low-temperature pyrolysis furnace 100, a crushing assembly, a pulverizing assembly, a grinding assembly, a preheating assembly, and a control system.

[0029] The low-temperature pyrolysis furnace 100 is fixedly provided with an exhaust pipe 200 for discharging exhaust gas, and a purification assembly is installed at the end of the exhaust pipe 200 away from the low-temperature pyrolysis furnace 100; the crushing assembly comprises a crushing box 300, two crushing rollers 301 rotating in opposite directions are arranged in the crushing box 300, and crushing knives 302 are arranged on the two crushing rollers 301 in the length direction at intervals; the crushing assembly comprises a crushing pipe 400 fixedly arranged below the crushing box 300 and communicating with the crushing box 300, a rotating shaft 401 is arranged in the crushing pipe 400, and a crushing knife 402 for crushing organic solid waste is fixedly sleeved on the middle section of the outer wall of the rotating shaft 401 and located at the outlet below the crushing box 300; the grinding assembly comprises a grinding box 500 fixedly arranged below the crushing pipe 400, so that an upper grinding disc 501 is fixedly arranged in the grinding box 500, and a lower grinding disc 502 cooperating with the upper grinding disc 501 is rotatably arranged in the grinding box 500; the preheating assembly comprises a preheating box 600 fixedly arranged between the low-temperature pyrolysis furnace 100 and the grinding box 500, the preheating box 600 communicates with the low-temperature pyrolysis furnace 100 and the grinding box 500 respectively, and the end of the exhaust pipe 200 away from the low-temperature pyrolysis furnace 100 can pass through the preheating box 600; the control system comprises a controller 700 and a driving motor 701, the controller 700 is electrically connected with the driving motor 701 through wires and is used for controlling the opening and closing of the driving motor 701, and the driving motor 701 provides driving force for the rotation of the crushing rollers 301, the rotating shaft 401 and the lower grinding disc 502.

[0030] In a preferred embodiment of the present application, the purification assembly comprises a settling box 800 fixedly connected above the low-temperature pyrolysis furnace 100, a connecting pipe 801 and a discharge pipe 802 are respectively communicated and installed on the two sides of the settling box 800, the end of the connecting pipe 801 away from the settling box 800 is communicated with the end of the exhaust pipe 200 away from the low-temperature pyrolysis furnace 100, a treatment liquid is injected into the settling box 800, a filter screen 803, an adsorption layer 804 and a moisture absorption layer 805 are fixedly connected in the settling box 800 from bottom to top, the connecting pipe 801 is located below the filter screen 803 and extends into the treatment liquid, and the discharge pipe 802 is located above the moisture absorption layer 805;

[0031] The treatment liquid injected into the settling box 800 is an aqueous solution of a strong alkali weak acid salt, and the adsorption layer 804 is an activated carbon adsorption material;

[0032] Specifically, when the exhaust gas is discharged from the exhaust pipe 200, the exhaust gas is introduced into the treatment liquid in the settling box 800, and the exhaust gas moves from bottom to top in the treatment liquid. During the process of passing through the treatment liquid, the smoke dust, tar, SO2, NOx, tar, HF, HCl, heavy metals, dioxins and water-soluble pollutants in the exhaust gas are settled, and then the dust is filtered out by the filter screen 803, and then the exhaust gas is further adsorbed by the adsorption layer 804 and the moisture is removed by the moisture absorption layer 805. Finally, the gas discharged from the exhaust pipe 802 can meet the emission standard, avoiding pollution to the environment.

[0033] In a preferred embodiment of the present application, the controller 700 is fixedly installed on the front surface of the settling box 800, and the return pipe 806 is installed in communication between the exhaust pipe 200 and the exhaust pipe 802. The detector 807 and the first electric control valve 808 electrically connected with the controller 700 are installed in the exhaust pipe 802. The second electric control valve 809 electrically connected with the controller 700 is installed on the return pipe 806. The position of the detector 807 is close to the settling box 800, and the position of the first electric control valve 808 is close to the outlet of the exhaust pipe 802.

[0034] Specifically, when the exhaust gas is treated by the settling box 800 and discharged from the exhaust pipe 802, the first electric control valve 808 is opened, and the second electric control valve 809 is closed. If the detector 807 detects that the discharged gas does not meet the emission standard, the first electric control valve 808 is controlled to be closed and the second electric control valve 809 is controlled to be opened by the controller 700. The air in the exhaust pipe 802 is introduced into the exhaust pipe 200 again through the return pipe 806 for repeated treatment, so as to ensure that the discharged gas meets the emission standard.

[0035] In a preferred embodiment of the present application, the driving motor 701 is fixedly installed on the top of the settling box 800, the output shaft of the driving motor 701 is fixedly connected with one end of the rotating shaft 401, the lower part of the two ends of the crushing pipe 400 and the two sides of the grinding box 500 are communicated with the discharging pipe 403, and the outer upper fixed sleeves of the two ends of the rotating shaft 401 are sleeved with the direction opposite conveying augers 404.

[0036] Specifically, the driving motor 701 directly drives the rotating shaft 401 to make the crushing knife 402 rotate at high speed, so as to crush the broken organic solid waste again, reduce the volume of the organic solid waste, and make it better for heat treatment.

[0037] In a preferred embodiment of the present application, the shaft bodies of the two crushing rollers 301 extend to the outside of the crushing box 300 and are fixedly sleeved with gears 303. The shaft bodies of the two gears 303 are fixedly sleeved with the first belt disc 702, the output shaft of the driving motor 701 is fixedly sleeved with the double-layer belt disc 703, and the first transmission belt 704 is transmissionally arranged between the double-layer belt disc 703 and the first belt disc 702.

[0038] Specifically, the driving motor 701 can drive the double-layer belt disc 703 to rotate while driving the rotating shaft 401 to rotate, and the first belt disc 702 is driven to rotate by the first transmission belt 704, and the corresponding crushing roller 301 is driven to rotate, the crushing roller 301 at the position is driven to rotate in the same direction by the gear 303, and the two crushing rollers 301 are driven to rotate in opposite directions and crush the organic solid waste by the crushing knife 302.

[0039] In one preferred embodiment of the present application, the grinding box 500 is fixedly connected with a support frame 503, the top of the support frame 503 is rotatably connected with a support shaft 504, the lower grinding disc 502 is fixedly connected to the top end of the support shaft 504, the outer wall of the support shaft 504 is fixedly sleeved with a worm gear 505, the right side of the grinding box 500 is rotatably provided with a worm 506 engaged with the worm gear 505, the right end of the worm 506 penetrates through the grinding box 500 and is fixedly sleeved with a second belt disc 705, and the second transmission belt 706 is arranged in transmission between the second belt disc 705 and the double-layer belt disc 703.

[0040] Specifically, the double-layer belt disc 703 can drive the second belt disc 705 to rotate by the second transmission belt 706 when the double-layer belt disc 703 rotates, the worm 506 can drive the worm gear 505 engaged therewith to rotate, the support shaft 504 is driven to rotate by the worm gear 505, the lower grinding disc 502 is driven to rotate by the support shaft 504, and the lower grinding disc 502 is driven to rotate by the support shaft 504. The rotating lower grinding disc 502 cooperates with the fixed upper grinding disc 501 to realize grinding of the crushed organic solid waste, so that the organic solid waste becomes powder and can be burned better.

[0041] In one preferred embodiment of the present application, the diameters of the first belt disc 702 and the second belt disc 705 are the same and greater than the diameter of the double-layer belt disc 703.

[0042] Specifically, since the diameters of the first belt disc 702 and the second belt disc 705 are the same and greater than the diameter of the double-layer belt disc 703, the rotating speed of the first belt disc 702 and the second belt disc 705 is slightly lower when the driving motor 701 drives the rotating shaft 401 to rotate at high speed, and the design is more reasonable.

[0043] In one preferred embodiment of the present application, the front and rear sides of the preheating box 600 are respectively provided with an upper partition plate 601 and a lower partition plate 602, the upper partition plate 601 and the lower partition plate 602 can slide along the inner wall of the preheating box 600, the left and right sides of the preheating box 600 are fixedly installed with first hydraulic cylinders 603 electrically connected with the controller 700, the left and right sides of the preheating box 600 are fixedly installed with second hydraulic cylinders 604 electrically connected with the controller 700 and located below the first hydraulic cylinders 603, the movable ends of the two first hydraulic cylinders 603 are connected with the upper partition plate 601, and the movable ends of the two second hydraulic cylinders 604 are connected with the lower partition plate 602.

[0044] Specifically, the organic solid waste is crushed, pulverized and ground into powder and falls into the preheating box 600, and when the organic solid waste powder in the preheating box 600 accumulates to a certain degree, the first hydraulic cylinder 603 pulls the upper partition plate 601 to close the preheating box 600 and the grinding box 500, and the second hydraulic cylinder 604 pushes the lower partition plate 602 to move so that the organic solid waste powder enters the low-temperature pyrolysis furnace 100 for pyrolysis treatment; when the organic solid waste powder is in the preheating box 600, the discharged waste gas with heat preheats the organic solid waste when passing through the discharge pipe 802, improving the pyrolysis efficiency and pyrolysis effect.

[0045] In a preferred embodiment of the present application, the part of the exhaust pipe 200 passing through the preheating box 600 is located between the upper partition plate 601 and the lower partition plate 602, and the part of the exhaust pipe 200 passing through the preheating box 600 is arranged in a spiral shape.

[0046] The working principle and use process of the present application are as follows:

[0047] I. The organic solid waste is poured from above the crushing box 300, and the controller 700 controls the driving motor 701 to work, and the driving motor 701 drives the rotating shaft 401 and the double-layer belt disc 703 to rotate, and the double-layer belt disc 703 drives the first belt disc 702 and the second belt disc 705 to rotate through the first transmission belt 704 and the second transmission belt 706, respectively.

[0048] II. The first belt disc 702 drives one of the crushing rollers 301 to rotate and drives the other crushing roller 301 to rotate in the opposite direction through the intermeshing gears 303, and the two oppositely rotating crushing rollers 301 drive the crushing knives 302 to crush the organic solid waste.

[0049] III. The crushed organic solid waste falls into the pulverizing pipe 400, and the rotating shaft 401 can drive the pulverizing knives 402 to rotate to pulverize the organic solid waste.

[0050] IV. The pulverized organic solid waste moves to the lower pipe 403 through the conveying auger 404 and enters the grinding box 500, the second belt disc 705 drives the worm 506 to rotate, the worm 506 drives the worm gear 505 engaged therewith to rotate the support shaft 504, and then the lower grinding disc 502 cooperates with the upper grinding disc 501 to grind the pulverized organic solid waste.

[0051] V. After the organic solid waste is ground, it enters the preheating box 600 and is accumulated to a certain extent. The first hydraulic cylinder 603 pulls the upper partition plate 601 to close the preheating box 600 and the grinding box 500. The second hydraulic cylinder 604 pushes the lower partition plate 602 to move so that the organic solid waste powder enters the low-temperature pyrolysis furnace 100 for pyrolysis treatment. During the pyrolysis treatment, the first hydraulic cylinder 603 pushes the upper partition plate 601 to open the preheating box 600 and the grinding box 500. The second hydraulic cylinder 604 pulls the lower partition plate 602 to close the preheating box 600 and the low-temperature pyrolysis furnace 100. The subsequent processed organic solid waste can enter the preheating box 600 again to realize intermittent feeding pyrolysis.

[0052] VI. When the low-temperature pyrolysis furnace 100 pyrolyzes the organic solid waste, the waste gas generated is discharged through the exhaust pipe 200. At this time, the waste gas has a certain heat. When the waste gas passes through the preheating box 600, it preheats the organic solid waste powder in the preheating box 600.

[0053] VII. After the waste gas passes through the preheating box 600, it enters the treatment liquid in the settling box 800 through the connecting pipe 801 to realize settling. Then, the waste gas is filtered through the filter screen 803 to leave the dust. Then, the waste gas is further adsorbed through the adsorption layer 804 and the humidity is removed by the moisture absorption layer 805. Finally, the gas is discharged from the exhaust pipe 802. The detector 807 detects whether the discharged gas meets the emission standard. If it meets the standard, it is directly discharged. If it does not meet the emission standard, the air in the exhaust pipe 802 is again introduced into the exhaust pipe 200 through the reflux pipe 806 for repeated treatment to ensure that the discharged gas meets the emission standard.

[0054] In summary: The present application adopts an integrated design. The driving motor 701 synchronously drives the crushing, pulverizing and grinding of the organic solid waste, so that the organic solid waste is changed into a powder shape that is easier to pyrolyze. The production cost is low, and the organic solid waste can be conveniently used in rural areas without the need for transportation, energy saving and environmental protection, and the processing cost is reduced. The organic solid waste is preheated in the preheating box 600, the heat energy in the waste gas after pyrolysis is effectively utilized, and energy loss is avoided. The organic solid waste realizes intermittent feeding pyrolysis in the preheating box 600. The interval time allows the organic solid waste to stay in the low-temperature pyrolysis furnace 100 for an appropriate time, avoiding the situation that the pyrolysis is not sufficient due to the short stay time or the equipment efficiency is reduced due to the long stay time. The waste gas generated by pyrolysis is introduced into the treatment liquid in the settling box 800 to settle. Then, the waste gas is filtered through the filter screen 803 to leave the dust. Then, the waste gas is further adsorbed through the adsorption layer 804 and the humidity is removed by the moisture absorption layer 805. Finally, the gas is discharged from the exhaust pipe 802. The discharged gas can meet the emission standard, avoiding pollution to the environment.

[0055] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. "Under", "below" and "underneath" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0056] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above described embodiments, and the above described embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A low-temperature pyrolysis treatment system for rural organic solid waste, characterized in that: include: A low-temperature pyrolysis furnace (100), wherein an exhaust pipe (200) for discharging waste gas is fixedly provided on the low-temperature pyrolysis furnace (100), and a purification component is installed at one end of the exhaust pipe (200) away from the low-temperature pyrolysis furnace (100); A crushing assembly, the crushing assembly comprising a crushing box (300), wherein two crushing rollers (301) are rotatably arranged in the crushing box (300) and rotate in opposite directions, and crushing knives (302) are arranged on the two crushing rollers (301) at intervals along the length direction; A crushing assembly, the crushing assembly comprising a crushing tube (400) fixedly arranged below the crushing box (300) and in communication with the crushing box (300), a rotating shaft (401) rotatably arranged in the crushing tube (400), a crushing knife (402) located at the outlet below the crushing box (300) and crushing the organic solid waste fixedly sleeved on a middle section of the outer wall of the rotating shaft (401); A grinding assembly, the grinding assembly comprising a grinding box (500) fixedly arranged below the grinding tube (400), wherein an upper grinding disc (501) is fixedly arranged in the grinding box (500), and a lower grinding disc (502) cooperating with the upper grinding disc (501) is rotatably arranged in the grinding box (500); A preheating assembly, comprising a preheating box (600) fixedly arranged between the upper portion of the low-temperature pyrolysis furnace (100) and the lower portion of the grinding box (500), wherein the preheating box (600) is respectively connected to the low-temperature pyrolysis furnace (100) and the grinding box (500), and an end of the exhaust pipe (200) away from the low-temperature pyrolysis furnace (100) passes through the preheating box (600) and is arranged in a spiral shape. An upper partition (601) and a lower partition (602) are respectively interspersed on the front and rear sides of the preheating box (600), and the upper partition (601) and the lower partition (602) both slide along the inner wall of the preheating box (600). A first hydraulic cylinder (603) and a second hydraulic cylinder (604) located below the first hydraulic cylinder (603) are fixedly installed on the left and right sides of the preheating box (600). The movable end of the first hydraulic cylinder (603) is connected to the upper partition (601), and the movable end of the second hydraulic cylinder (604) is connected to the lower partition (602). The upper partition (601) and the lower partition (602) are driven to slide by the first hydraulic cylinder (603) and the second hydraulic cylinder (604) to realize intermittent feeding. A control system, the control system comprising a controller (700) and a drive motor (701), the controller (700) being electrically connected to the drive motor (701) via a wire and used to control the opening and closing of the drive motor (701), the drive motor (701) providing driving force for the rotation of the crushing roller (301), the rotating shaft (401) and the lower grinding disc (502); A purification component, the purification component comprising a sedimentation box (800) fixedly connected above a low-temperature pyrolysis furnace (100), a connecting pipe (801) and a discharge pipe (802) being respectively connected and installed on both sides of the sedimentation box (800), an end of the connecting pipe (801) away from the sedimentation box (800) being connected to an end of the exhaust pipe (200) away from the low-temperature pyrolysis furnace (100), a treatment liquid being injected into the sedimentation box (800), a filter screen (803), an adsorption layer (804) and a moisture absorption layer (805) arranged from bottom to top being fixedly connected to the sedimentation box (800), the connecting pipe (801) being located below the filter screen (803) and The discharge pipe (802) extends into the treatment liquid, and is located above the moisture-absorbing layer (805). A return pipe (806) is installed between the discharge pipe (802) and the exhaust pipe (200). A detector (807) and a first electrically controlled valve (808) electrically connected to the controller (700) are installed in the discharge pipe (802). A second electrically controlled valve (809) electrically connected to the controller (700) is installed on the return pipe (806). The detector (807) is located close to the sedimentation box (800), and the first electrically controlled valve (808) is located close to the outlet of the discharge pipe (802), thereby achieving emission control of waste gas in compliance with emission standards.

2. The rural organic solid waste low-temperature pyrolysis treatment system according to claim 1, characterized in that: The controller (700) is fixedly mounted on the front of the sedimentation box (800); the first hydraulic cylinder (603) and the second hydraulic cylinder (604) are electrically connected to the controller (700); the treatment liquid injected into the sedimentation box (800) is an aqueous solution of a strong base and a weak acid salt; and the adsorption layer (804) is an activated carbon adsorption material.

3. The rural organic solid waste low-temperature pyrolysis treatment system according to claim 1, characterized in that: The driving motor (701) is fixedly mounted on the top of the sedimentation box (800), and the output shaft of the driving motor (701) is fixedly connected to one end of the rotating shaft (401). A feeding pipe (403) is connected below both ends of the crushing tube (400) and on both sides of the grinding box (500). A feeding screw (404) in opposite directions is fixedly sleeved on the outer upper part of both ends of the rotating shaft (401).

4. The rural organic solid waste low-temperature pyrolysis treatment system according to claim 1, characterized in that: The shafts of the two crushing rollers (301) extend to the outside of the crushing box (300) and are fixedly sleeved with gears (303). The two gears (303) are meshed with each other. A first belt pulley (702) is fixedly sleeved on the shaft of one of the crushing rollers (301). A double-layer belt pulley (703) is fixedly sleeved on the output shaft of the drive motor (701). A first transmission belt (704) is provided between the double-layer belt pulley (703) and the first belt pulley (702).

5. The rural organic solid waste low-temperature pyrolysis treatment system according to claim 4, characterized in that: A support frame (503) is fixedly connected to the grinding box (500), the top of the support frame (503) is rotatably connected to a support shaft (504), the lower grinding disc (502) is fixedly connected to the top of the support shaft (504), a worm wheel (505) is fixedly sleeved on the outer wall of the support shaft (504), a worm (506) is rotatably provided on the right side of the grinding box (500) and is engaged with the worm wheel (505), the right end of the worm (506) passes through the grinding box (500) and is fixedly sleeved with a second belt pulley (705), and a second transmission belt (706) is provided for transmission between the second belt pulley (705) and the double-layer belt pulley (703).

6. The rural organic solid waste low-temperature pyrolysis treatment system according to claim 5, characterized in that: The diameters of the first belt pulley (702) and the second belt pulley (705) are the same and larger than the diameter of the double-layer belt pulley (703).

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