Self-deoxidizing internal heat rotary scale carbonization device

Abstract

The present application relates to carbonization device technical field, especially to a kind of self deoxidation inner heat rotary scale carbonization device, including rotary furnace and the machine table of supporting rotary furnace, further include: heating device and deoxidizing device are connected in the outside of rotary furnace;One end of the rotary furnace is fixed with feed cylinder, the inside of the feed cylinder is rotatably connected with the rotating shaft.The rotating shaft is rotated by motor, so as to drive the cam rotation in opening and closing mechanism, the cam drives two push rods to slide, so as to drive two slide rods to move, the slide groove plate of end portion is moved back and forth by slide rod, so as to drive two tool holders and two cutting knives in the same place to merge or separate, so as to drive two cutting knives to open and close, cutting knife opening and closing can cut off the part of large size carbon-containing raw material surface that has been carbonized in time, keep uncarbonized carbon-containing raw material in high temperature environment, can avoid overburning of outer layer of carbon-containing raw material, help to improve carbonization uniformity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carbonization devices, in particular to a self-deoxidizing internal heat rotary scale carbonization device. BACKGROUND

[0002] Biochar, including activated carbon, plays an irreplaceable role in water treatment, air purification, chemical decolorization, etc. due to its strong adsorption performance. At the same time, biochar is also an important renewable green fuel, which has important applications in the fields of energy, chemical industry and environmental protection. A carbonization device is a main equipment for producing biochar. Coal, wood or crop straw and other organic matter are put into the carbonization device, and the carbonization device provides a low-oxygen high-temperature environment for the organic matter, so that the organic matter is decomposed into carbon products by heat.

[0003] According to the search, the Chinese patent with the publication number CN114774144B discloses a high-temperature carbonization furnace. The high-temperature carbonization furnace comprises a furnace body, a furnace cover arranged on one side of the furnace body, a locking clamp arranged on the furnace body, a heater arranged in the furnace body, a purifier arranged outside the furnace body, and a dehumidification unit arranged between the furnace body and the purifier for dehumidifying the wet firewood before carbonization. A power unit is arranged between the dehumidification unit and the furnace body to provide power for the dehumidification unit.

[0004] Based on the above search and combined with the actual problems, it is found that the existing carbonization furnace device cannot cut large pieces of raw materials when heating the raw materials. For large-size raw materials, the surface area is small, so the center part is not easy to heat. This not only affects the carbonization efficiency, but also causes the center part and the outer part of the raw material to have different carbonization degrees, resulting in overburning of the outer part, so that the carbonized particles are fused and sintered with each other, the original structure is damaged, and the quality consistency of the biochar product is reduced. Moreover, the carbonization time of large pieces of raw materials is long, which causes slow carbonization speed, and is not conducive to realizing scale carbonization. SUMMARY

[0005] The present application aims to provide a self-deoxidizing internal heat rotary scale carbonization device to solve the problems raised in the background art.

[0006] The technical solution of the present invention is: a self-deoxidation internal heating rotary large-scale carbonization device, comprising a rotary kiln and a machine table for supporting the rotary kiln, and also comprising: a heating device and a deoxidation device connected to the outside of the rotary kiln; a feed barrel is fixed through one end of the rotary kiln, and a rotating shaft is passed through the inner side of the feed barrel and is rotatably connected, two shells are symmetrically fixed on both sides of the feed barrel, and the inner ends of the two shells are symmetrically connected to two tool holders for rotation, and cutting knives are installed on the outer sides of the two tool holders; it also includes an opening and closing mechanism for driving the two pairs of cutting knives to rotate and open and close; the opening and closing mechanism includes two sliding rods slidably connected to the inner sides of the two shells, a sliding pin fixed to one end of each tool holder, one end of the two sliding rods is fixed with a slide plate, and two inclined slide grooves are symmetrically provided inside the two slide plates, and a plurality of sliding pins are respectively slidably connected to the inner sides of the plurality of inclined slide grooves, and also includes two push rods slidably inserted on both sides of the feed barrel, and a cam fixed on the outer side of the rotating shaft for pushing the two push rods, and one end of the two push rods is movably connected to one end of the two sliding rods through a connecting rod.

[0007] Preferably, one end of the feed barrel is rotatably connected to a feed hopper, and the feed hopper is fixed on the upper side of the machine. A motor is installed on the outside of the feed hopper, and the driving end of the motor is fixedly connected to one end of the rotating shaft. A feed spiral blade is fixed to the outside of the rotating shaft. The side wall of the feed barrel is provided with a plurality of feed ports connected to the inner side of the rotary kiln, and the end of the rotary kiln away from the feed barrel is rotatably connected to a discharge hopper. The interior of the feed hopper and the discharge hopper are both provided with an air shut-off mechanism of the same structure, and the air shut-off mechanism includes an impeller rotatably connected to the inside of the discharge hopper and an air shut-off motor installed on the outside of the discharge hopper, and the driving end of the air shut-off motor is fixedly connected to one end of the impeller.

[0008] Preferably, one end of each of the two push rods is rotatably connected to a roller, and the plurality of rollers are in rolling engagement with the outer side of the cam.

[0009] Preferably, partitions are fixed on the inner sides of the two shells, the two sliding rods slide through the inside of the two partitions, flanges are fixed on the outer sides of the two sliding rods, and one end of the two flanges is elastically connected to one side of the two partitions through a reset spring.

[0010] Preferably, the end of the feeding cylinder is provided with a dispersing mechanism located inside the rotary furnace; the dispersing mechanism comprises two guide rods fixed at one end of the feeding cylinder, a rotating plate fixed at the end of the rotating shaft, an active plate slidably connected to the outside of the two guide rods, two impact springs sleeved on the outside of the two guide rods connected to one side of the active plate, a plurality of circumferentially arranged inclined surfaces two provided on one side of the active plate at the middle segment position, a plurality of inclined surfaces one provided at one end of the rotating plate, the plurality of inclined surfaces one being slidably matched with the plurality of inclined surfaces two respectively, two extension rods fixed to one side of the active plate, and a plurality of beating plates fixed to the outside of the extension rods.

[0011] Preferably, the outer side of the rotary furnace is fixed with two annular tracks, the upper side of the rotary furnace is fixed with a supporting roller frame corresponding to the positions of the two annular tracks, the upper side of the two supporting roller frames is rotatably connected with supporting rollers for supporting the two annular tracks, the upper side of the machine table is provided with a motor two, the driving end of the motor two is fixed with a driving gear, and the outer side of the rotary furnace is fixed with a furnace body gear meshing with the driving gear.

[0012] Preferably, the inner wall of the rotary furnace is welded with a plurality of inclined guide plates.

[0013] Preferably, the heating device comprises a heat exchange pipe arranged inside the rotary furnace, the two ends of the heat exchange pipe are provided with a circulating liquid pump and a heating pipe, the inlet end of the circulating liquid pump is communicated with one end of the heat exchange pipe, the outlet end of the circulating liquid pump is communicated with one end of the heating pipe, the other end of the heating pipe is communicated with the other end of the heat exchange pipe, and the inside of the heating pipe is provided with an electric heating wire.

[0014] Preferably, the deoxidizing device comprises a circulating gas pump, the outlet end of the circulating gas pump is connected with a backflow pipe extending to the inside of the rotary furnace, the inlet end of the circulating gas pump is connected with a deoxidizing shell, one end of the deoxidizing shell is connected with an air inlet pipe extending to the inside of the rotary furnace, the inside of the deoxidizing shell is provided with a plurality of screens, and the inside of the deoxidizing shell is filled with a reducing filler for reacting with oxygen.

[0015] Preferably, the outer side of the rotary furnace is provided with a positive electrode slip ring and a negative electrode slip ring, the upper side of the machine table is connected with a positive electrode brush and a negative electrode brush through an insulating pad, and the positive electrode brush and the negative electrode brush are slidably attached to the outside of the positive electrode slip ring and the negative electrode slip ring respectively.

[0016] The present application provides a self-deoxidizing internal heating rotary scale carbonization device, which has the following improvements and advantages compared with the prior art.

[0017] One: the motor drives the rotating shaft to rotate, thereby driving the cam in the opening and closing mechanism to rotate, the cam drives the two push rods to slide, thereby pushing the two slide rods to move, the slide rods drive the slide groove plates at the end to move back and forth, thereby driving the two knife holders and the two cutting knives at the same position to combine or separate, thereby driving the two cutting knives to open and close, the cutting knives can cut off the carbonized part on the surface of the large-size carbon-containing raw material in time, keep the uncarbonized carbon-containing raw material in a high-temperature environment, avoid over-burning of the outer part of the carbon-containing raw material, help to improve the carbonization uniformity, improve the quality consistency of the carbonization product, and improve the carbonization efficiency, which is conducive to realizing large-scale carbonization processing.

[0018] Secondly, the rotating shaft drives the rotating plate in the dispersion mechanism to rotate, the rotating plate drives a plurality of inclined surfaces on one side to rotate, through the sliding fit between inclined surface one and inclined surface two, the sliding plate will be pushed to one end, after the separation of inclined surface one and inclined surface two, under the action of the impact spring, the sliding plate will quickly move reversely and reset, therefore, with the continuous rotation of the rotating shaft, the sliding plate can be vibrated at high frequency, the two extension rods are vibrated by the sliding plate, and the plurality of beating plates on the outer side are vibrated by the two extension rods, thereby the carbon-containing raw material in the furnace body can be continuously beaten, the mixing effect is achieved, the carbon-containing raw material at each position can be moved to the position of the cutting knife, the shearing uniformity is improved, the carbonized surface layer of the large-size carbon-containing raw material can be effectively peeled off, and the small pieces of carbon-containing raw material after peeling can be distributed more uniformly through continuous vibration, so that the carbon-containing raw material is heated more uniformly, and over-burning of the carbon-containing raw material at a local position or insufficient heating of the carbon-containing raw material at a local position is avoided.

[0019] Thirdly, the deoxidizing device consumes the oxygen in the furnace body, so that the oxygen content inside the furnace body is kept very low, thereby ensuring that the raw material is in an oxygen-free "dry distillation" state during the carbonization process. Thus, the ablation of biochar is avoided, and the conversion rate of carbonization of the carbon-containing raw material is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a first perspective structural schematic view of the present application;

[0022] Figure 2 It is a second perspective structural schematic view of the present application;

[0023] Figure 3Fig. 1 is a schematic view of a first cross-sectional structure of the present application;

[0024] Figure 4 Fig. 2 is a schematic view of the internal structure of a rotary furnace in the present application;

[0025] Figure 5 Fig. 3 is a schematic view of a second cross-sectional structure of the present application;

[0026] Figure 6 Fig. 4 is a schematic view of a third cross-sectional structure of the present application; Figure 5 Fig. 5 is a schematic view of an enlarged structure at A in the present application;

[0027] Figure 7 Fig. 6 is a schematic view of an enlarged structure at B in the present application; Figure 5 Fig. 7 is a schematic view of an enlarged structure at C in the present application;

[0028] Figure 8 Fig. 8 is a schematic view of an enlarged structure at D in the present application; Figure 5 Fig. 9 is a schematic view of an enlarged structure at E in the present application;

[0029] Figure 9 Fig. 10 is a schematic view of an enlarged structure of the inclined surface one and the inclined surface two in the present application.

[0030] Reference signs:

[0031] 1. rotary furnace; 2. feeding cylinder; 3. rotating shaft; 4. shell; 5. feeding hopper; 6. motor one; 7. feeding spiral blade; 8. feeding port; 9. discharging hopper; 10. air sealing motor; 12. impeller; 13. supporting wheel frame; 14. supporting wheel; 15. annular track; 16. inclined guide plate; 17. machine table; 18. cutter holder; 19. cutting knife; 101. sliding rod; 102. sliding groove plate; 103. inclined sliding groove; 104. sliding pin; 105. cam; 106. push rod; 107. connecting rod; 108. roller; 109. flange; 110. return spring; 111. partition plate; 201. motor two; 202. furnace body gear; 203. driving gear; 301. guide rod; 302. movable plate; 303. impact spring; 304. rotating plate; 305. inclined surface one; 306. inclined surface two; 307. extension rod; 308. beating plate; 401. heat exchange pipe; 402. circulating liquid pump; 403. heating pipe; 404. electric heating wire; 501. circulating gas pump; 502. deoxidizing shell; 503. partition net; 504. return pipe; 505. air inlet pipe; 601. positive electrode slip ring; 602. negative electrode slip ring; 603. positive electrode brush; 604. negative electrode brush. DETAILED DESCRIPTION

[0032] The present invention is described in detail below, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] The present invention provides a self-deoxidation internal heat rotary large-scale carbonization device through improvement. The technical solution of the present invention is:

[0034] like Figures 1 to 9 As shown, the embodiment of the present invention provides a self-deoxidation internal heating rotary large-scale carbonization device, including a rotary kiln 1 and a machine table 17 supporting the rotary kiln 1, a plurality of inclined guide plates 16 are welded and fixed to the inner wall of the rotary kiln 1, and further comprising: a heating device and a deoxidation device connected to the outside of the rotary kiln 1; a feed barrel 2 is fixed through one end of the rotary kiln 1, a rotating shaft 3 is rotatably connected to the inner side of the feed barrel 2, two shells 4 are symmetrically fixed on both sides of the feed barrel 2, the inner side ends of the two shells 4 are symmetrically connected to two knife holders 18, and cutting knives 19 are installed on the outer sides of the two knife holders 18; an opening and closing mechanism is also included to drive the two pairs of cutting knives 19 to rotate and open and close; the opening and closing mechanism includes a sliding connection to the inner sides of the two shells 4 The two slide bars 101 and the slide pin 104 are fixed at one end of each tool holder 18. One end of the two slide bars 101 is fixed with a slide plate 102. Two inclined slide grooves 103 are symmetrically provided inside the two slide plates 102. Multiple slide pins 104 are respectively slidably connected to the inner sides of the multiple inclined slide grooves 103. It also includes two push rods 106 slidably inserted on both sides of the feed barrel 2 and a cam 105 fixed to the outside of the rotating shaft 3 for pushing the two push rods 106. One end of the two push rods 106 is rotatably connected to a roller 108, and multiple rollers 108 are in rolling cooperation with the outer side of the cam 105. One end of the two push rods 106 is movably connected to one end of the two slide bars 101 through a connecting rod 107.

[0035] Furthermore, one end of the feed barrel 2 is rotatably connected to a feed hopper 5, which is fixed on the upper side of the machine platform 17. A motor 6 is installed on the outside of the feed hopper 5, and the driving end of the motor 6 is fixedly connected to one end of the rotating shaft 3. A feeding spiral blade 7 is fixed to the outside of the rotating shaft 3. The side wall of the feed barrel 2 is provided with a plurality of feeding ports 8 connected to the inner side of the rotary kiln 1. The end of the rotary kiln 1 away from the feed barrel 2 is rotatably connected to a discharge hopper 9. The inside of the feed hopper 5 and the discharge hopper 9 are both provided with an air-closing mechanism of the same structure, which includes an impeller 12 rotatably connected to the inner side of the discharge hopper 9 and an air-closing motor 10 installed on the outer side of the discharge hopper 9, and the driving end of the air-closing motor 10 is fixedly connected to one end of the impeller 12;

[0036] The carbon-containing raw material is put into the inside of the feeding hopper 5, the motor 6 is controlled to drive the rotation of the rotating shaft 3, the rotating shaft 3 drives the rotation of the outer feeding spiral blade 7, the feeding spiral blade 7 can push the carbon-containing raw material in the inside of the feeding hopper 5 into the inside of the feeding cylinder 2, and then the carbon-containing raw material falls into the inside of the rotary furnace 1 through the plurality of feeding ports 8 in the side wall of the feeding cylinder 2, the rotary furnace 1 rotates while realizing the continuous feeding, the carbonization efficiency is improved, and the air is prevented from entering the inside of the rotary furnace 1 during feeding and discharging, so that the low-oxygen environment in the inside of the rotary furnace 1 is ensured, and the carbonization efficiency is further improved.

[0037] Further, the inside of each of the two housings 4 is fixed with a partition plate 111, the two sliding rods 101 are slidingly penetrated into the inside of the two partition plates 111, the outside of each of the two sliding rods 101 is fixed with a flange 109, and one end of each of the two flanges 109 is elastically connected with one side of the two partition plates 111 through a return spring 110.

[0038] With the rotation of the cam 105 of the opening and closing mechanism, when the two end portions of the cam 105 are separated from the two rollers 108, the flange 109 is subjected to a reverse thrust under the elastic force of the return spring 110, so as to drive the sliding rod 101 to move reversely and reset, the reverse movement of the sliding rod 101 of the opening and closing mechanism drives the reverse movement of the sliding groove plate 102, the reverse movement of the sliding groove plate 102 drives the reverse movement of the two inclined sliding grooves 103, and through the movable cooperation between the inclined sliding grooves 103 and the sliding pins 104, the two knife holders 18 and the two cutting knives 19 can be separated and opened again, waiting for the next time of merging to shear the carbon-containing raw material.

[0039] Further, the end of the feeding cylinder 2 is provided with a dispersing mechanism located in the inside of the rotary furnace 1; the dispersing mechanism comprises two guide rods 301 fixed at one end of the feeding cylinder 2 and a rotating plate 304 fixed at the end of the rotating shaft 3, the outside of the two guide rods 301 is slidingly connected with an active plate 302, one side of the active plate 302 is connected with two impact springs 303 sleeved on the outside of the two guide rods 301, one side of the active plate 302 is provided with a plurality of circumferentially arranged inclined surfaces two 306 at the middle segment position, one end of the rotating plate 304 is provided with inclined surfaces one 305 equal in number to the inclined surfaces two 306, the plurality of inclined surfaces one 305 are slidingly matched with the plurality of inclined surfaces two 306 respectively, one side of the active plate 302 is fixed with two extension rods 307, the outside of the extension rods 307 is fixed with a plurality of beating plates 308, and the inclined surfaces one 305 and the inclined surfaces two 306 are in a spiral structure.

[0040] The multiple beating plates 308 in the dispersion mechanism are driven to vibrate by the rotating shaft 3, so that the carbon-containing raw materials in the rotary furnace 1 are continuously beaten, which plays a mixing role, and the carbon-containing raw materials in the rotary furnace 1 move to the position close to the cutting knife 19 at the end, thereby improving the cutting uniformity, cutting the large-size carbon-containing raw materials into small pieces with uniform size, further improving the carbonization uniformity, and the continuously up-and-down vibration can make the small pieces of carbon-containing raw materials after cutting more uniformly distributed, so that they are heated more uniformly, avoiding over-burning of the carbon-containing raw materials in local positions or insufficient heating of the carbon-containing raw materials in local positions.

[0041] Further, the rotary furnace 1 is fixed with two annular tracks 15 at the two ends of the outer side, and the rotary furnace 1 is fixed with a supporting wheel frame 13 at the position corresponding to the two annular tracks 15 on the upper side, the upper side of the two supporting wheel frames 13 is rotatably connected with a supporting wheel 14 for supporting the two annular tracks 15, and the upper side of the machine table 17 is provided with a motor two 201, the driving end of the motor two 201 is fixed with a driving gear 203, and the outer side of the rotary furnace 1 is fixed with a furnace body gear 202 meshing with the driving gear 203.

[0042] Through the rolling cooperation between the supporting wheel 14 and the annular track 15, the supporting wheel 14 can support the annular track 15, so as to support the rotary furnace 1 and ensure the stable rotation of the rotary furnace 1.

[0043] Further, the heating device comprises a heat exchange pipe 401 arranged in the rotary furnace 1, the two ends of the heat exchange pipe 401 are provided with a circulating liquid pump 402 and a heating pipe 403, the inlet end of the circulating liquid pump 402 is communicated with one end of the heat exchange pipe 401, the outlet end of the circulating liquid pump 402 is communicated with one end of the heating pipe 403, the other end of the heating pipe 403 is communicated with the other end of the heat exchange pipe 401, and the inner side of the heating pipe 403 is provided with an electric heating wire 404.

[0044] The electric heating wire 404 in the heating device generates heat when electrified, since the inner sides of the heating pipe 403 and the heat exchange pipe 401 are filled with heat-conducting oil, the electric heating wire 404 generates heat to heat the heat-conducting oil, and the circulating liquid pump 402 runs to make the heat-conducting oil in the inner sides of the heating pipe 403 and the heat exchange pipe 401 circulate, so that the heated heat-conducting oil flows through the inner side of the heat exchange pipe 401, and the heat is conducted to the carbon-containing raw materials in the inner side of the rotary furnace 1 through the heat exchange pipe 401, so as to heat the carbon-containing raw materials, and form a high-temperature environment in the inner side of the rotary furnace 1.

[0045] Further, the deoxidizing device comprises a circulating gas pump 501, an outlet end of the circulating gas pump 501 is connected with a backflow pipe 504 extending to the inside of the rotary furnace 1, and an inlet end of the circulating gas pump 501 is connected with a deoxidizing shell 502, one end of the deoxidizing shell 502 is connected with an air inlet pipe 505 extending to the inside of the rotary furnace 1, the inside of the deoxidizing shell 502 is provided with a plurality of screens 503, and the inside of the deoxidizing shell 502 is filled with a reducing filler for reacting with oxygen;

[0046] The inside of the deoxidizing shell 502 in the deoxidizing device is filled with a reducing filler such as iron powder filler, the circulating gas pump 501 operates to suck the gas in the inside of the rotary furnace 1 into the inside of the deoxidizing shell 502 through the air inlet pipe 505, and then discharge back to the inside of the rotary furnace 1 through the backflow pipe 504, so that the gas in the inside of the rotary furnace 1 can circulate through the inside of the deoxidizing shell 502, the high-temperature gas in the inside of the rotary furnace 1 contains high-temperature oxygen, when the high-temperature oxygen contacts the iron powder filler in the inside of the deoxidizing shell 502, an oxidation-reduction reaction can be generated in the high-temperature environment, the iron powder absorbs the oxygen in the gas to be oxidized into iron oxide, and the iron oxide further reacts with the oxygen to generate magnetite, therefore, with the continuous circulation of the gas in the inside of the rotary furnace 1, the oxygen in the inside of the rotary furnace 1 can be gradually consumed, so that the oxygen in the inside of the rotary furnace 1 can be maintained at a very low level, and the self-deoxidizing effect is achieved.

[0047] Further, the outside of the rotary furnace 1 is provided with a positive electrode slip ring 601 and a negative electrode slip ring 602, the upper side of the machine table 17 is connected with a positive electrode brush 603 and a negative electrode brush 604 through an insulating pad, and the positive electrode brush 603 and the negative electrode brush 604 are respectively slidably attached to the outside of the positive electrode slip ring 601 and the negative electrode slip ring 602.

[0048] The positive electrode brush 603 and the negative electrode brush 604 are respectively slidably attached to the positive electrode slip ring 601 and the negative electrode slip ring 602, and the positive electrode brush 603 and the negative electrode brush 604 are electrically connected with an external power supply, so that the electric energy can be transmitted to the electric heating wire 404, the circulating liquid pump 402 and the circulating gas pump 501.

[0049] Working principle: when in use, the carbon-containing raw material is put into the inner side of the feed hopper 5, and the motor 6 is started at the same time, the motor 6 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the feeding spiral blade 7 on the outside thereof to rotate, and the feeding spiral blade 7 can push the carbon-containing raw material inside the feed hopper 5 to the inner side of the feed barrel 2, and then the carbon-containing raw material falls into the inner side of the rotary kiln 1 through the multiple feeding ports 8 on the side wall of the feed barrel 2, wherein the positive slip ring 601 and the negative slip ring 602 are electrically connected to the circuits of the electric heating wire 404, the circulating liquid pump 402 and the circulating air pump 501, the positive electrode brush 603 and the negative electrode brush 604 are slidably fitted with the positive electrode slip ring 601 and the negative electrode slip ring 602 respectively, and the positive electrode brush 603 and the negative electrode brush 604 are electrically connected to the external power supply, so that the electric energy can be transmitted to the electric heating wire 404, the circulating liquid pump 402 and the circulating air pump 501;

[0050] The electric heating wire 404 in the heating device is controlled to be energized. Since the inner sides of the heating tube 403 and the heat exchange tube 401 are filled with heat transfer oil, the electric heating wire 404 is energized to generate heat to heat the heat transfer oil. At the same time, the circulating liquid pump 402 is operated to circulate the heat transfer oil inside the heating tube 403 and the heat exchange tube 401. When the heated heat transfer oil flows through the inner side of the heat exchange tube 401, the heat can be transferred to the carbon-containing raw material inside the rotary kiln 1 through the heat exchange tube 401, thereby heating the carbon-containing raw material and forming a high-temperature environment inside the rotary kiln 1. At the same time, the circulating air pump 501 of the deoxidation device is controlled to operate to suck the gas inside the rotary kiln 1 into the inner side of the deoxidation shell 502 through the air inlet pipe 505, and then discharged back to the inner side of the rotary kiln 1 through the reflux pipe 504, so that the gas inside the rotary kiln 1 can circulate through the deoxidation shell 502. On the inside, since the inside of the deoxidation shell 502 is filled with a reducing filler, such as iron powder, which has reducing properties, the high-temperature gas inside the rotary kiln 1 contains high-temperature oxygen. When the high-temperature oxygen comes into contact with the iron powder filler inside the deoxidation shell 502, an oxidation-reduction reaction can be generated under high-temperature conditions. The iron powder absorbs oxygen in the gas and is oxidized into iron oxide, which further reacts with oxygen to form ferroferric oxide. Therefore, as the gas inside the rotary kiln 1 continues to circulate, the oxygen inside the rotary kiln 1 can be gradually consumed, so that the oxygen inside the rotary kiln 1 is maintained at an extremely low level, achieving the effect of self-deoxidation, thereby avoiding the combustion of carbon-containing raw materials at high temperatures, thereby allowing the carbon-containing raw materials to be converted into carbonized products as much as possible, retaining more carbon elements, thereby increasing the carbon content of the carbonized products, and improving the carbonization efficiency and carbonization quality;

[0051] In order to ensure that the carbon-containing raw materials can be uniformly heated, thereby improving the carbonization uniformity and carbonization quality, it is necessary to shred the carbon-containing raw materials in the rotary furnace 1. When the motor 6 operates to drive the rotating shaft 3 to rotate, the rotating shaft 3 drives the cam 105 of the opening and closing mechanism to rotate. The cam 105 is in an elliptical structure, and the outer side of the cam 105 is in rolling cooperation with the plurality of rollers 108. When the two protruding ends of the cam 105 are in contact with the two end rollers 108, the cam 105 applies a pushing force to the two push rods 106 through the rollers 108. The two push rods 106 push the two connecting rods 107 to rotate. One end of the two connecting rods 107 pushes the two slide rods 101 to slide linearly along the inner sides of the two housings 4, respectively. The two slide rods 101 drive the two slide groove plates 102 to move. When the two slide groove plates 102 move, they drive the two inclined slide grooves 103 inside to move. Since the plurality of slide pins 104 are respectively slidably connected to the inner sides of the plurality of inclined slide grooves 103, when each slide groove plate 102 drives the two inclined slide grooves 103 inside to move, the two inclined slide grooves 103 apply a reverse pushing force to the two slide pins 104, thereby driving the two knife holders 18 to rotate in reverse through the two slide pins 104. The two knife holders 18 drive the two cutting knives 19 to rotate in reverse, thereby realizing the opening function of the two cutting knives 19. When the two cutting knives 19 are combined, the carbon-containing raw materials can be sheared, thereby shearing the large-size carbon-containing raw materials into small pieces of carbon-containing raw materials, thereby increasing the surface area of the carbon-containing raw materials, shortening the conduction distance of heat in the carbon-containing raw materials, allowing the central part of the carbon-containing raw materials to be heated faster, improving the carbonization efficiency, and avoiding over-burning of the outer part of the carbon-containing raw materials, which helps to improve the carbonization uniformity and the quality consistency of the carbonization products.

[0052] When the two slide rods 101 in the opening and closing mechanism move, the slide rods 101 drive the flanges 109 to move synchronously. The flanges 109 compress the return springs 110, so that the return springs 110 generate elastic force. As the cam 105 of the opening and closing mechanism rotates, when the two end portions of the cam 105 are separated from the two rollers 108, the flanges 109 are applied with a reverse pushing force under the elastic force of the return springs 110, thereby pushing the slide rods 101 to move reversely to reset. When the slide rods 101 move reversely, they push the connecting rods 107 of the opening and closing mechanism to rotate reversely, thereby pushing the push rods 106 to move reversely. At the same time, when the slide rods 101 of the opening and closing mechanism move reversely, they drive the slide groove plates 102 to move reversely. The slide groove plates 102 drive the two inclined slide grooves 103 to move reversely. Through the movable cooperation between the inclined slide grooves 103 and the slide pins 104, the two knife holders 18 and the two cutting knives 19 can be separated and opened again, waiting for the next time to shear the carbon-containing raw materials.

[0053] When the rotating shaft 3 rotates, the rotating plate 304 in the dispersion mechanism also rotates, the rotating plate 304 drives the plurality of inclined surfaces one 305 on one side to rotate, because the movable plate 302 and the plurality of inclined surfaces two 306 on one side thereof do not rotate, when the rotating plate 304 rotates, the plurality of inclined surfaces one 305 on one end thereof slides along the surfaces of the plurality of inclined surfaces two 306, because the inclined surfaces one 305 and the inclined surfaces two 306 are both spiral structures, therefore, under the cooperation between the inclined surfaces one 305 and the inclined surfaces two 306, the movable plate 302 is pushed to one end, so that the movable plate 302 slides along the outside of the rotating shaft 3 to the end where the feed hopper 5 is located, therefore, the movable plate 302 drives the two extension rods 307 on one side thereof to move to the end where the feed hopper 5 is located, the movable plate 302 simultaneously compresses the two impact springs 303, with the continuous rotation of the rotating plate 304, when the inclined surfaces one 305 and the inclined surfaces two 306 separate, under the elastic force of the two impact springs 303, the movable plate 302 quickly moves reversely to reset, therefore, with the rotating shaft 3 continuously driving the rotating plate 304 of the dispersion mechanism to rotate, the plurality of movable plates 302 can continuously vibrate, the two extension rods 307 are vibrated by the movable plate 302, the plurality of beating plates 308 on the outside are vibrated by the two movable plates 302 respectively, so that the carbon-containing raw materials in the rotary furnace 1 can be continuously beaten, which plays a mixing role, so that the carbon-containing raw materials in the rotary furnace 1 move to the position close to the cutting knife 19 at the end, thereby improving the cutting uniformity, so that the large-size carbon-containing raw materials are cut into small pieces with uniform size, further improving the carbonization uniformity, and the continuous up-and-down vibration can make the small pieces of carbon-containing raw materials after cutting can be more uniformly distributed, so that they can be heated more uniformly, avoiding over-burning of the carbon-containing raw materials in the local position or insufficient heating of the carbon-containing raw materials in the local position;

[0054] At the same time, the motor two 201 drives the driving gear 203 to rotate, the driving gear 203 drives the furnace gear 202 to rotate through the teeth, the furnace gear 202 drives the rotary furnace 1 to rotate, because the rotary furnace 1 is arranged on the upper side of the four supporting rollers 14 through the two annular tracks 15 at both ends, so as to ensure the stability of the rotary furnace 1 when rotating, the rotary movement of the rotary furnace 1 makes the carbon-containing raw materials on the inside more uniformly distributed, thereby improving the heating uniformity of the carbon-containing raw materials, and a plurality of inclined guide plates 16 are welded and fixed to the inner wall of the rotary furnace 1, when the rotary furnace 1 rotates, the plurality of inclined guide plates 16 on the inside thereof can push the carbon-containing raw materials to the end where the cutting knife 19 is located, so that the carbon-containing raw materials can be uniformly cut by the cutting knife 19, further improving the cutting uniformity of the carbon-containing raw materials and improving the carbonization efficiency;

[0055] After the carbonization of the carbon-containing raw material is completed, the biochar product is formed and is pushed by the carbon-containing raw material that has not been carbonized in the inner side of the rotary furnace 1 to move to the inner side of the discharge hopper 9. The air lock mechanism located in the inner side of the discharge hopper 9 is operated to drive the impeller 12 in the inner side of the discharge hopper 9 to rotate. Since the density of the biochar product is greater than the density of the high-temperature gas discharged into the inner side of the discharge hopper 9, the biochar product falls into the gap between the blades of the impeller 12 under the action of gravity, and the high-temperature gas is squeezed from the gap between the blades of the impeller 12 to the inner side of the discharge hopper 9. When the impeller 12 rotates, the produced biochar product is discharged outward, and the high-temperature gas in the inner side of the discharge hopper 9 cannot leak outward, reducing the loss of heat. Similarly, when the air lock mechanism located in the inner side of the feeding hopper 5 is operated, only the carbon-containing raw material is transferred to the inner side of the feeding hopper 5, preventing external air from entering the inner side of the feeding hopper 5, thereby avoiding the entry of air into the inner side of the rotary furnace 1, thereby ensuring the low-oxygen environment in the inner side of the rotary furnace 1 and improving the carbonization efficiency.

[0056] The above description enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-deoxidation internal heating rotary large-scale carbonization device, comprising a rotary kiln and a machine platform for supporting the rotary kiln, characterized in that: Also includes: A heating device and a deoxidizing device connected to the outside of the rotary kiln; A feed cylinder is fixed through one end of the rotary kiln, and a rotating shaft is rotatably connected to the inner side of the feed cylinder. Two shells are symmetrically fixed on both sides of the feed cylinder, and the inner ends of the two shells are symmetrically connected to two tool holders, and cutting knives are installed on the outer sides of the two tool holders. It also includes an opening and closing mechanism that drives the two pairs of cutting knives to rotate and open and close; The opening and closing mechanism includes two slide rods slidably connected to the inner sides of the two shells, a slide pin fixed to one end of each tool holder, one end of each slide rod is fixed to a slide plate, two inclined slide grooves are symmetrically provided inside the two slide groove plates, and multiple slide pins are slidably connected to the inner sides of the multiple inclined slide grooves, and also includes two push rods slidably inserted on both sides of the feed barrel, and a cam fixed to the outside of the rotating shaft for pushing the two push rods, one end of the two push rods is movably connected to one end of the two slide rods through a connecting rod. The end of the feed cylinder is provided with a dispersion mechanism located inside the rotary kiln; The dispersion mechanism includes two guide rods fixed at one end of the feed barrel and a rotating plate fixed at the end of the rotating shaft. A movable plate is slidably connected to the outer sides of the two guide rods. One side of the movable plate is connected to two impact springs sleeved on the outer sides of the two guide rods. One side of the movable plate is located in the middle position and is provided with multiple circularly arranged inclined planes 2. One end of the rotating plate is provided with inclined planes 1 equal in number to inclined planes 2. The multiple inclined planes 1 are respectively slidably adapted to the multiple inclined planes 2. Two extension rods are fixed on one side of the movable plate. Multiple beating plates are fixed on the outer sides of the extension rods. Both inclined planes 1 and inclined plane 2 have spiral structures.

2. The self-deoxidation internal heating rotary large-scale carbonization device according to claim 1 is characterized in that: One end of the feed barrel is rotatably connected to a feed hopper, which is fixed on the upper side of the machine. A motor is installed on the outside of the feed hopper, and the driving end of the motor is fixedly connected to one end of the rotating shaft. A feed spiral blade is fixed to the outside of the rotating shaft. The side wall of the feed barrel is provided with a plurality of feed ports connected to the inside of the rotary kiln. The end of the rotary kiln away from the feed barrel is rotatably connected to a discharge hopper. The interior of the feed hopper and the discharge hopper are both provided with air-shutoff mechanisms of the same structure, which include an impeller rotatably connected to the inside of the discharge hopper and an air-shutoff motor installed on the outside of the discharge hopper, and the driving end of the air-shutoff motor is fixedly connected to one end of the impeller.

3. The self-deoxidation internal heating rotary large-scale carbonization device according to claim 1 is characterized in that: One end of each of the two push rods is rotatably connected to a roller, and the plurality of rollers are in rolling cooperation with the outer sides of the cam.

4. The self-deoxidation internal heating rotary large-scale carbonization device according to claim 1, characterized in that: A partition is fixed on the inner side of the two shells, and the two slide rods slide through the inside of the two partitions. A flange is fixed on the outer side of the two slide rods, and one end of the two flanges is elastically connected to one side of the two partitions through a reset spring.

5. The self-deoxidation internal heating rotary large-scale carbonization device according to claim 1 is characterized in that: Two circular rails are fixed at both ends of the outer side of the rotary kiln, and roller frames are fixed at the positions corresponding to the two circular rails on the upper side of the rotary kiln. Both ends of the upper sides of the two roller frames are rotatably connected with rollers for supporting the two circular rails. Motor 2 is installed on the upper side of the machine, and a driving gear is fixed to the driving end of motor 2. A furnace body gear engaged with the driving gear is fixed on the outside of the rotary kiln.

6. The self-deoxidation internal heating rotary large-scale carbonization device according to claim 1, characterized in that: A plurality of inclined guide plates are welded and fixed to the inner wall of the rotary kiln.

7. The self-deoxidation internal heating rotary large-scale carbonization device according to claim 1 is characterized in that: The heating device includes a heat exchange tube arranged inside the rotary furnace, and a circulating liquid pump and a heating tube are provided at both ends of the heat exchange tube. The liquid inlet end of the circulating liquid pump is connected to one end of the heat exchange tube, and the liquid outlet end of the circulating liquid pump is connected to one end of the heating tube, and the other end of the heating tube is connected to the other end of the heat exchange tube, and an electric heating wire is installed on the inside of the heating tube.

8. The self-deoxidation internal heating rotary large-scale carbonization device according to claim 1, characterized in that: The deoxidation device includes a circulating air pump, the outlet end of the circulating air pump is connected to a reflux pipe extending to the inside of the rotary kiln, and the inlet end of the circulating air pump is connected to a deoxidation shell, one end of the deoxidation shell is connected to an inlet pipe extending to the inside of the rotary kiln, a plurality of partitions are provided on the inside of the deoxidation shell, and the inside of the deoxidation shell is filled with a reducing filler for reacting with oxygen.

9. The self-deoxidation internal heating rotary large-scale carbonization device according to claim 1, characterized in that: Positive slip rings and negative slip rings are installed on the outside of the rotary kiln. Positive brushes and negative brushes are connected to the upper side of the machine through insulating pads. The positive brushes and negative brushes slide and fit on the outside of the positive slip rings and negative slip rings respectively.

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