Gasification furnace for grain drying

Abstract

The invention relates to the technical field of gasification furnaces, and discloses a gasification furnace for grain drying, which comprises a gasification furnace, the gasification furnace is composed of a furnace body and a feeding box, a heat preservation part is arranged in the furnace body, a screening part is arranged in the feeding box, and a cutting part is arranged on the screening part. The two crushing rollers rotate oppositely, when biomass passes through the crushing rollers, dry soil remaining on the biomass can be crushed under the extrusion force of the two crushing rollers, the crushed soil is separated from the biomass, the screening plate is driven by the connecting rod to do reciprocating linear movement, the crushed soil in the biomass is screened out from the screening plate, and the biomass is crushed through the crushing rollers. According to the biomass gasification furnace, the situation that soil is mixed with biomass to be conveyed into the hearth, consequently, the soil forms slag in the hearth, and circulation of gas is affected is avoided, the circulation smoothness of the gas in the gasification furnace is improved, then the heat exchange efficiency is improved, the drying efficiency and the drying effect of grains are promoted, and the possibility that the grains go bad is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of gasifiers, in particular to a gasifier for grain drying. Background Art

[0002] After the grain is harvested, if it is not dried in time and effectively, it is easy to be attacked by mold, pests, etc., which will cause the grain to deteriorate. The gasifier produces combustible gas by pyrolysis of biomass and adopts an improved burner and heat exchange system. The heat generated by the combustion of combustible gas can be transferred to the grain drying equipment more quickly and evenly.

[0003] In order to improve the utilization rate of resources, the biomass put into the gasifier is usually crop straw. In modern agricultural production, combine harvesters are widely used for crop harvesting. When the harvester works in some uneven farmland, the cutter will harvest the straw close to the ground together with the soil, resulting in soil mixed in the straw. When the dried straw is put into the gasifier as biomass, the soil will slag inside the gasifier under high temperature environment, resulting in a reduction in the internal space of the gasifier, affecting the heat exchange efficiency and gas circulation, thereby reducing the drying efficiency of the grain, so that the grain cannot be dried in time and effectively, resulting in grain deterioration. Summary of the invention

[0004] The object of the present invention is to provide a gasifier for grain drying to solve the problems mentioned in the above process.

[0005] To achieve the above object, the present invention provides the following technical solution: a gasifier for grain drying, comprising a gasifier, the gasifier consisting of a furnace body and a feed box, the furnace body comprising a base plate, a shell arranged on the base plate, a furnace arranged on the base plate, a combustion box arranged on the furnace, and a heat preservation component is arranged in the furnace body; A screening component is provided in the feed box, and a cutting component is provided on the screening component; The screening component includes a vertical plate, a transmission shaft symmetrically arranged on the vertical plate, a bevel gear 1 arranged on one of the transmission shafts, a horizontal plate arranged in the feed box, a bevel gear 2 arranged on the horizontal plate, an eccentric wheel arranged on the horizontal plate, a connecting rod arranged on the eccentric wheel, and a screening plate arranged on the connecting rod.

[0006] As a preferred embodiment of the gasification furnace for grain drying of the present invention, a crushing roller is arranged on the transmission shaft, a box cover is arranged on the feed box, and a feed hopper is arranged on the box cover.

[0007] As a preferred embodiment of the gasification furnace for grain drying of the present invention, the heat-insulating component includes an outer cylinder, an inner cylinder arranged in the outer cylinder, and a heat exchanger arranged on the combustion box.

[0008] As a preferred embodiment of the gasification furnace for grain drying of the present invention, a top box is arranged in the outer shell, and an air inlet cavity is arranged in the top box.

[0009] As a preferred embodiment of the gasification furnace for grain drying of the present invention, the cutting component includes a cutting rod, a cutting groove arranged on the cutting rod, a cutting knife arranged in the cutting groove, and a lifting rod arranged on the cutting knife.

[0010] As a preferred solution of the gasification furnace for grain drying of the present invention, the vertical plate is provided with a mounting rod, a moving block arranged on the mounting rod, a synchronization rod arranged on the moving block, and a sliding plate arranged on the lifting rod.

[0011] As a preferred embodiment of the gasification furnace for grain drying of the present invention, a lifting plate is arranged inside the lifting rod, guide blocks are arranged in an array on the lifting plate, a cutout 1 is arranged on the lifting plate, and a cutout 2 is arranged in an array on the lifting rod.

[0012] As a preferred solution of the gasification furnace for grain drying described in the present invention, a driving cylinder is symmetrically arranged in the mounting rod, a driving rod is arranged on the moving block, a pressure wheel is arranged on the outside of the driving rod, a locking rod is arranged in the driving rod, and a push rod is arranged in the driving rod.

[0013] As a preferred embodiment of the gasification furnace for grain drying of the present invention, the driving rod is symmetrically provided with a rotating rod, a plug ring provided on the rotating rod, a trigger rod provided inside the rotating rod, a retracting rod provided on the triggering rod, and an extending rod provided on the retracting rod.

[0014] As a preferred embodiment of the gasification furnace for grain drying described in the present invention, wherein: a pressure block is arranged on the mounting rod, a pressure rod is arranged on the pressure block, a pressure roller is arranged on the pressure rod, a clamping ring 1 is arranged on the pressure rod, a rack is arranged on the lifting rod, a transmission wheel is arranged on the clamping ring 1, a pressure cylinder is arranged on the pressure block, a clamping ring 2 is arranged on the pressure cylinder, and a telescopic rod is symmetrically arranged in the pressure cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By putting the biomass into the feed box and using two crushing rollers to rotate in opposite directions, when the biomass passes through the crushing rollers, the dry soil remaining on the biomass will be crushed under the extrusion force of the two crushing rollers, so that the crushed soil is separated from the biomass, and then the transmission shaft drives the bevel gear 1, so that the eccentric wheel drives the screening plate to move back and forth linearly through the connecting rod, so that the crushed soil in the biomass is screened out from the screening plate, avoiding the soil mixed with the biomass being transported to the furnace, causing the soil to slag in the furnace, affecting the circulation of gas, improving the smoothness of gas circulation in the gasifier, thereby improving the heat exchange efficiency, promoting the drying efficiency and drying effect of grain, and reducing the possibility of grain deterioration; 2. By setting up the inner cylinder and the outer cylinder, the outside air will be heated when entering the heat preservation chamber, which promotes the pyrolysis efficiency of the biomass. At the same time, the gas in the inner cylinder is kept warm, which reduces the heat loss efficiency and improves the drying effect of the grain; 3. The reciprocating movement of the screening plate drives the moving block to move synchronously, so that the two rotating rods drive the driving rods respectively, so that the driving rods always rotate in one direction, so that the pressing wheel continuously presses the cutter to make reciprocating lifting and lowering movements, thereby cutting the biomass, increasing the surface area of ​​the biomass, thereby improving the pyrolysis efficiency of the biomass, promoting the generation of combustible gas, and thereby improving the drying efficiency of the grain; 4. By dislocating the incision 1 and the incision 2 when the cutter enters the cutting groove, the biomass not cut by the cutter passes through the incision 1 and the incision 2, and when the cutter moves to the limit position, the part of the biomass is cut off, thereby improving the cutting efficiency of the biomass, improving the pyrolysis reaction efficiency, and further promoting the drying efficiency of the grain; 5. By setting a pressure roller to press the biomass, the biomass is prevented from being offset when being cut. At the same time, the rack is used to drive the pressure rod to rotate intermittently, so that the pressure roller rotates and transports the biomass, which improves the cutting efficiency of the biomass, promotes the pyrolysis of the biomass, and improves the drying efficiency of the grain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the gasifier for grain drying of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the heat preservation component of the gasification furnace for grain drying of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure inside the feed box of the gasifier for grain drying of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the screening component of the gasifier for grain drying of the present invention.

[0020] Figure 5The diagram is a structural diagram of an eccentric wheel and a connecting rod of a gasifier for grain drying according to the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of a part of the cutting components of the gasification furnace for grain drying of the present invention.

[0022] Figure 7 The gasifier for grain drying of the present invention Figure 6 Schematic diagram of the structure enlarged at point A in the middle.

[0023] Figure 8 It is a structural schematic diagram of the lifting rod and the lifting plate of the gasification furnace for grain drying of the present invention.

[0024] Fig. 9 It is a structural schematic diagram of a partial half-section of the cutting components of the gasification furnace for grain drying of the present invention.

[0025] Fig.10 The gasifier for grain drying of the present invention Fig. 9 Schematic diagram of the enlarged structure at point B.

[0026] Fig.11 It is a schematic structural diagram of the transmission wheel and rack of the gasification furnace for grain drying of the present invention.

[0027] Fig.12 A schematic structural diagram of a first clamp ring and a second clamp ring of a gasifier for grain drying according to the present invention.

[0028] In the figure: 1. Furnace body; 11. Feed box; 111. Box cover; 112. Feed hopper; 12. Base plate; 13. Shell; 14. Furnace; 15. Combustion box; 2. Insulation components; 21. Outer tube; 22. Inner tube; 23. Heat exchanger; 24. Top box; 25. Air inlet cavity; 3. Screening components; 31. Vertical plate; 32. Transmission shaft; 321. Cone gear 1; 322. Crushing roller; 33. Horizontal plate; 331. Cone gear 2; 332. Eccentric wheel; 333. Connecting rod; 334. Screening plate; 4. Cutting parts; 41. Cutting rod; 411. Cutting groove; 42. Cutter; 43. Lifting rod; 431. Slide; 432. Lifting plate; 4321. Incision 1; 433. Guide block; 434. Incision 2; 44. Mounting rod; 441. Driving cylinder; 45. Moving block; 451. Synchronous rod; 452. Driving rod; 453. Pressure wheel; 454. Locking rod; 455. Push rod; 46. Rotating rod; 461. Plug ring; 462. Trigger rod; 463. Retracting rod; 464. Extending rod; 47. Pressing block; 471. Pressing rod; 472. Pressing roller; 473. Snap ring 1; 474. Transmission wheel; 48. Rack; 49. Pressing cylinder; 491. Snap ring 2; 492. Telescopic rod. DETAILED DESCRIPTION

[0029] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is by no means limited to any specific configuration and algorithm proposed below, but covers any modification, replacement and improvement of elements, parts and algorithms without departing from the spirit of the present invention. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid unnecessary ambiguity to the present invention.

[0030] Example 1 Reference Figure 1-5 , which is the first embodiment of the present invention, provides a gasifier for grain drying, the gasifier for grain drying includes a gasifier, the gasifier is composed of a furnace body 1 and a feed box 11, the furnace body 1 includes a base plate 12, a shell 13 arranged on the base plate 12, a furnace 14 arranged on the base plate 12, a combustion box 15 arranged on the furnace 14, and a heat preservation component 2 is arranged in the furnace body 1; The housing 13 is arranged on the upper surface of the base plate 12, the furnace 14 and the combustion box 15 are arranged inside the housing 13, the furnace 14 is connected to the upper surface of the base plate 12, the combustion box 15 is arranged at one end of the furnace 14 away from the base plate 12, a slag discharge groove is arranged in the middle area of ​​the lower surface of the base plate 12, a slag discharge port is arranged in the middle area of ​​the slag discharge groove, the slag discharge port is communicated with the inside of the furnace 14, a slag discharge plate is arranged in the slag discharge groove for sliding engagement, and the slag discharge plate can block the slag discharge port; The furnace 14 is composed of a plurality of furnace plates 14 connected together, and the plurality of furnace plates 14 are connected by bolts and threads. A heating wire is laid in the furnace 14, and the heating wire is electrically connected to a power source. Electric current passes through the heating wire, thereby converting electrical energy into thermal energy. The combustion box 15 is composed of a plurality of combustion plates connected together, and the plurality of combustion plates are connected by bolts and threads. An electric igniter is arranged in the combustion box 15, and the electric igniter is electrically connected to a power source. The feed box 11 is provided with a screening component 3 and a cutting component 4 arranged on the screening component 3; The screening component 3 includes a vertical plate 31, a transmission shaft 32 symmetrically arranged on the vertical plate 31, a bevel gear 1 321 is arranged on one transmission shaft 32, a horizontal plate 33 arranged in the feed box 11, a bevel gear 2 331 arranged on the horizontal plate 33, an eccentric wheel 332 arranged on the horizontal plate 33, a connecting rod 333 arranged on the eccentric wheel 332, and a screening plate 334 arranged on the connecting rod 333. The vertical plate 31 is connected to the inner side wall of the feed box 11, one end of the transmission shaft 32 is rotatably connected to the vertical plate 31, and one end of the transmission shaft 32 away from the vertical plate 31 is rotatably connected to the feed box 11. Gears are coaxially connected to both ends of the transmission shaft 32, and the gears on the two transmission shafts 32 are meshed with each other. A synchronous wheel 1 is coaxially connected to a transmission shaft 32, a transverse plate 33 is connected to the inner side wall of the feed box 11, a base is arranged on the upper surface of the transverse plate 33, a motor 1 is arranged on the base, a synchronous wheel 2 is arranged on the output shaft of the motor 1, the synchronous wheel 1 and the synchronous wheel 2 are connected by a synchronous belt, and a bevel gear 1 321 is coaxially connected to a transmission shaft 32; A rotating shaft is provided on the horizontal plate 33 for engagement and rotation, a second bevel gear 331 is coaxially connected to the rotating shaft, the second bevel gear 331 and the first bevel gear 321 are meshed with each other, an eccentric wheel 332 is provided at one end of the rotating shaft away from the second bevel gear 331, the eccentric wheel 332 is coaxially connected to the rotating shaft, an eccentric shaft is provided at the eccentric position of the side of the eccentric wheel 332 away from the horizontal plate 33, one end of the connecting rod 333 is rotatably connected to the eccentric shaft, the end of the connecting rod 333 away from the eccentric shaft is hingedly matched with the screening plate 334, and a plurality of pulleys are rotatably provided on the outer side of the screening plate 334; Linear rails are symmetrically arranged on the vertical plate 31, and a slide groove is arranged in the linear rails. The pulley is slidably arranged in the slide groove. The screening plate 334 is inclined relative to the base plate 12, and the screening plate 334 is arrayed with screening holes. A filter plate is arranged in the feed box 11, and filter holes are arranged in an array on the filter plate. The aperture of the filter holes is smaller than the aperture of the screening holes. A discharge plate is arranged on the filter plate, and a discharge port is arranged on the feed box 11. The position of the discharge port and the position of the discharge plate are adapted to each other. A guide pipe is arranged on the filter plate, and the end of the feed pipe away from the filter plate is connected to the furnace body 1, and the interior of the feed pipe is interconnected with the interior of the furnace body 1. A worm is arranged in the feed pipe, and a second motor is arranged on the outer side wall of the feed box 11, and the output shaft of the second motor is coaxially connected with the output shaft of the worm.

[0031] A crushing roller 322 is arranged on the transmission shaft 32, a box cover 111 is arranged on the feed box 11, a feed hopper 112 is arranged on the box cover 111, the crushing roller 322 is coaxially connected with the transmission shaft 32, the two crushing rollers 322 are arranged at the upper end area of ​​the screening plate 334, the box cover 111 is arranged at the upper end of the feed box 11, the feed hopper 112 is arranged at the end of the box cover 111 away from the feed box 11, the feed hopper 112 is communicated with the inside of the feed box 11, and the feed hopper 112 is arranged at the upper area between the two crushing rollers 322.

[0032] The heat-insulating component 2 includes an outer tube 21, an inner tube 22 arranged in the outer tube 21, and a heat exchanger 23 arranged on the combustion box 15. The outer tube 21 is connected to the upper surface of the substrate 12, and the inner tube 22 is arranged on the inner side of the outer tube 21. The inner tube 22 is connected to the outer side wall of the furnace 14. The outer side wall of the inner tube 22 and the inner side wall of the outer tube 21 form an insulation cavity. The insulation cavity and the inner cavity of the inner tube 22 are interconnected. The heat exchanger 23 is arranged at one end of the combustion box 15 away from the furnace 14. An air outlet pipe is arranged on the inner tube 22. The end of the air outlet pipe away from the inner tube 22 passes through the outer tube 21 and the outer shell 13. The interior of the air outlet pipe is connected to the interior of the inner tube 22. A fan is arranged at the end of the air outlet pipe away from the inner tube 22.

[0033] A top box 24 is provided in the outer shell 13, and an air inlet cavity 25 is provided in the top box 24. The top box 24 is sleeved on the outside of the heat exchanger 23, and the top box 24 is located at the end of the heat exchanger 23 away from the combustion box 15. The top box 24 is located on the inner side of the outer shell 13. An array of air inlets is provided at the end of the top box 24 away from the heat exchanger 23, and an array of air outlets is provided at the end of the top box 24 close to the heat exchanger 23. The air inlet is connected to the inside of the air inlet cavity 25, and the air inlet cavity 25 is connected to the inside of the insulation cavity through the air outlet.

[0034] During use, the biomass is first put into the feed box 11 from the feed hopper 112. The biomass entering the feed box 11 first contacts the two crushing rollers 322, and the synchronous wheel 2 is driven by the output shaft of the motor 1, and the synchronous wheel 1 is driven to rotate by the synchronous belt. At this time, the transmission shaft 32 connected to the synchronous wheel 1 rotates, and the gears on it rotate synchronously with the transmission shaft 32. Since the gears on the two transmission shafts 32 are meshed with each other, the two transmission shafts 32 rotate in opposite directions. Then the transmission shaft 32 drives the crushing roller 322 to rotate. When the biomass passes through the crushing roller 322, the solidified soil mixed in the biomass will be crushed by the crushing roller 322 due to the small distance between the two crushing rollers 322, and will be separated from the biomass. Then, the biomass passing through the crushing roller 322 and the crushed soil will fall onto the screening plate 334 under the action of gravity. At the same time, the rotation of the transmission shaft 32 will drive the bevel gear 1 321 to rotate, and the bevel gear 1 321 will drive the bevel gear 2 331 to rotate. At this time, the shaft rotates, and then the shaft will drive the eccentric wheel 332 to rotate. The eccentric wheel 332 drives the screening plate 334 to shift through the connecting rod 333. Since the pulley on the screening plate 334 slides in the slide groove, the connecting rod 333 will drive the screening plate 334 to move linearly back and forth along the slide groove. Then, the soil falling onto the screening plate 334 will be affected by the reciprocating shaking force of the screening plate 334 and fall onto the upper surface of the filter plate through the screening holes. Some of the smaller biomass crushed by the crushing roller 322 will also fall onto the filter plate through the screening holes. The aperture of the filter hole is smaller than that of the sieve hole, so that the soil falling on the filter plate will pass through the filter hole and fall onto the discharge plate and be discharged from the discharge port. The biomass falling on the filter plate will slide along the filter plate into the feed pipe. The biomass on the sieve plate 334 will also fall into the feed pipe under the action of the sieve plate 334 and the crushing roller 322. The worm is driven by the second output shaft of the motor, so that the biomass in the feed pipe is transported to the furnace 14. The heating wire is electrically connected to the power supply, so that current flows through the heating wire, and the electrical energy is converted into thermal energy. The temperature of the heating wire is continuously increased, and the heat on the heating wire is continuously radiated and conducted to the biomass, so that the biomass in the furnace 14 is gradually pyrolyzed and reacted under the high temperature environment, and finally a combustible gas is generated. The negative pressure suction device generates an attraction for the gas inside the inner cylinder 22, so that the combustible gas is guided into the combustion box 15 and ignited by the electric igniter, so that the combustible gas starts to burn; The heat generated by the combustion of the combustible gas will be radiated and transferred to the heat exchanger, and then the heat on the heat exchanger will gradually be radiated and transferred to the inner tube 22. At the same time, the external gas will enter the air inlet cavity 25 through the air inlet, and then enter the heat preservation cavity through the air outlet. At this time, the heat on the inner tube 22 will be transferred to the heat preservation cavity, so that the gas entering the heat preservation cavity will be gradually heated. Then the air heated in the heat preservation chamber will enter the furnace 14 and the combustion box 15, so that the oxygen in the air will further promote the complete combustion of the combustible gas. At the same time, the heat generated by the combustion of the combustible gas will follow the gas through the exhaust pipe and finally be introduced into the grain storage bin, causing the grain to be dried.

[0035] Example 2 Reference Figure 1-10 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: The cutting component 4 includes a cutting rod 41, a cutting groove 411 arranged on the cutting rod 41, a cutting knife 42 arranged in the cutting groove 411, and a lifting rod 43 arranged on the cutting knife 42. The cutting rod 41 is arranged at one end of the screening plate 334 away from the connecting rod 333. A lifting groove is opened on the lifting rod 43. The cutting knife 42 is embedded in the lifting groove. The cutting knife 42 can slide in the cutting groove 411.

[0036] The vertical plate 31 is provided with a mounting rod 44, a moving block 45 arranged on the mounting rod 44, a synchronization rod 451 arranged on the moving block 45, and a slide 431 arranged on the lifting rod 43. The mounting rods 44 are symmetrically arranged on both sides of the vertical plate 31, and a mounting groove is opened on the mounting rod 44. The moving block 45 is slidably arranged in the mounting groove. The moving block 45 is provided with a moving groove. The slide 431 is slidably arranged in the moving groove. A spring piece 1 is symmetrically arranged on the slide 431. The end of the spring piece 1 away from the slide 431 is connected to the moving block 45, and the end of the synchronization rod 451 away from the moving block 45 is connected to the cutting rod 41. The moving block 45 can be shifted synchronously with the screening plate 334.

[0037] A lifting plate 432 is arranged in the lifting rod 43, and guide blocks 433 are arranged in an array on the lifting plate 432. A cutout 4321 is arranged on the lifting plate 432, and a cutout 434 is arranged in an array on the lifting rod 43. The lifting plate 432 is slidably arranged in the lifting groove. A spring piece 2 is symmetrically arranged on the lifting plate 432, and one end of the spring piece 2 away from the lifting plate 432 is connected to the lifting rod 43. The cutout 4321 and the cutout 434 can overlap when the cutter 42 is not fully inserted into the cutting groove 411, and a cutting knife 42 is arranged at the edge of the cutout 4321.

[0038] A driving cylinder 441 is symmetrically arranged in the mounting rod 44, and a spiral groove is provided on the driving cylinder 441; a driving rod 452 is arranged on the moving block 45, and the driving rod 452 penetrates the moving block 45; a pressure wheel 453 is arranged on the outer side of the driving rod 452, and the pressure wheel 453 is coaxially connected with the driving rod 452; a roller is rotatably arranged on the pressure wheel 453, and the roller can contact the sliding sheet 431; a locking rod 454 is arranged in the driving rod 452; a push rod 455 is arranged in the driving rod 452; driving grooves are symmetrically provided at both ends of the driving rod 452, and a push groove is provided in the driving groove, and the push groove can connect the two driving grooves; the push rod 455 is slidably arranged in the push groove, and elastic grooves are symmetrically provided in the driving groove; the locking rod 454 is slidably arranged in the elastic groove, and a spring 1 is sleeved on the outer side of the locking rod 454.

[0039] The driving rod 452 is symmetrically provided with a rotating rod 46, a plug ring 461 provided on the rotating rod 46, a trigger rod 462 provided in the rotating rod 46, a retracting rod 463 provided on the trigger rod 462, and an extending rod 464 provided on the retracting rod 463. The rotating rod 46 is sleeved on the outside of the driving rod 452. One end of the rotating rod 46 is connected to the moving block 45, and the rotating rod 46 is rotatably connected to the moving block 45. A rotating groove is provided through the rotating rod 46. A card slot 1 is provided on the inner side wall of the rotating groove. The position of the card slot 1 is adapted to the position of the locking rod 454. The plug ring 461 is provided at one end of the rotating rod 46 away from the moving block 45. The plug ring 461 is slidably provided in the driving cylinder 441. A spiral shaft is provided on the outside of the plug ring 461. The spiral shaft is slidably provided in the spiral groove. The trigger rod 462 is slidably disposed in the rotating groove, the retracting rod 463 is disposed at one end of the trigger rod 462 close to the driving rod 452, the extending rod 464 is disposed at one end of the retracting rod 463 away from the trigger rod 462, and the extending rod 464 is slidably disposed in the driving groove.

[0040] During use, when the biomass on the screening plate 334 is moved to the area of ​​the cutting rod 41 by its own gravity and the screening action of the screening plate 334, the biomass is shifted to the area directly below the cutter 42; At the same time, the linear reciprocating movement of the screening plate 334 drives the moving block 45 to move linearly reciprocatingly along the installation groove. When the driving rod 452 pushes the rotating rod 46 to move toward the furnace body 1, the push rod 455 extends into the driving groove near one end of the furnace body 1, causing the retracting rod 463 in the driving groove near one end of the furnace body 1 to break away from the locking rod 454. When the spring is deformed, the extending rod 464 contacts the locking rod 454 and forces the locking rod 454 to extend out of the elastic groove. At this time, the locking rod 454 will be engaged with the card slot. As the rotating rod 46 moves, the spiral shaft on the plug ring 461 will slide along the spiral groove, and then the plug plate will drive the rotating rod 46 to rotate. Since the locking rod 454 is engaged with the slot, the rotating rod 46 drives the driving rod 452 to rotate, and the driving rod 452 drives the pressing wheel 453 to rotate. During the rotation process, the pressing wheel 453 will contact the sliding plate 431 and force the sliding plate 431 to shift. At this time, the spring sheet is deformed, and the lifting rod 43 drives the cutter 42 to insert into the cutting groove 411, so that the biomass at the lower end of the cutter 42 is cut off; When the cutter 42 descends, the cutting rod 41 blocks the guide block 433, causing the second spring piece to deform, and the first incision 4321 and the second incision 434 are gradually misaligned. When the cutter 42 enters the cutting groove 411, part of the biomass will pass through the first incision 4321 and enter the second incision 434 under the guidance of the guide block 433. When the cutter 42 descends to the limit position, the first incision 4321 and the second incision 434 are completely misaligned. At this time, the biomass passing through the first incision 4321 and the second incision 434 will be cut off by the cutter 42. When the plug ring 461 moves to the limit position, the trigger rod 462 will contact the bottom of the driving cylinder 441 and be compressed and retracted into the rotating groove. At this time, the extension rod 464 near the end of the furnace body 1 gradually separates from the locking rod 454, and at the same time, it pushes the extension rod 464 away from the end of the furnace body 1. At this time, the retracting rod 463 near the end of the furnace body 1 contacts the locking rod 454, and the locking rod 454 is separated from the card slot in the rotating rod 46 near the end of the furnace body 1. At this time, the extension rod 464 at the end away from the furnace body 1 contacts the locking rod 454 at the end away from the furnace body 1 and forces it to extend. At this time, the moving block 45 moves linearly in the direction away from the furnace body 1, and the pressing wheel 453 continues to rotate in one direction and the roller continuously presses the sliding plate 431, so that the biomass is continuously cut.

[0041] The remaining structures are the same as those of Example 1.

[0042] Example 3 Reference Figure 1-12 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: The mounting rod 44 is provided with a pressing block 47, a pressing rod 471 provided on the pressing block 47, a pressing roller 472 provided on the pressing rod 471, a snap ring 1 473 provided on the pressing rod 471, a rack 48 provided on the lifting rod 43, a transmission wheel 474 provided on the snap ring 1 473, a pressing cylinder 49 provided on the pressing block 47, a snap ring 2 491 provided on the pressing cylinder 49, a telescopic rod 492 symmetrically provided in the pressing cylinder 49, the pressing rod 471 is rotatably provided on the pressing block 47, the pressing roller 472 is sleeved on the outer side of the pressing rod 471, the pressing roller 472 can rotate synchronously with the pressing rod 471, the snap ring 1 473 is symmetrically provided on the pressing rod 471, the transmission wheel 474 is sleeved on the outer side of the snap ring 1 473, and the transmission wheel 474 is slidably connected with the snap ring 1 473, and a tooth structure is provided on the transmission wheel 474, and the transmission wheel 474 is meshed with the rack 48; The first pressure ring is provided with a second spring, which is sleeved on the outside of the pressure rod 471. Roller grooves are provided at both ends of the pressure roller 472, and one end of the second spring away from the transmission wheel 474 is connected to the roller groove. The pressure cylinder 49 is sleeved on the outside of the pressure rod 471, and the second snap ring 491 is arranged at the end of the pressure cylinder 49 away from the pressure block 47, and the second snap ring 491 is rotatably connected with the pressure cylinder 49, and the second snap ring 491 rotates synchronously with the pressure rod 471. The end of the second snap ring 491 close to the pressure cylinder 49 is provided with a telescopic groove 1, and the pressure cylinder 49 is symmetrically provided with a telescopic groove 2. The telescopic rod 492 is slidably arranged in the telescopic groove 2, and a spring 3 is arranged in the telescopic groove 2. The end of the spring 3 away from the telescopic groove 2 is connected to the telescopic rod 492, and the telescopic rod 492 can be clamped in the telescopic groove 1, and a chamfered structure is arranged on the telescopic rod 492; The surfaces of the clamping ring 1 473 and the clamping ring 2 491 that are close to each other are both provided with buckles in an array, and there is a certain distance between the pressure roller 472 and the upper surface of the screening plate 334.

[0043] During use, the lifting rod 43 will drive the rack 48 to move synchronously during the lifting process. When the lifting rod 43 is descending, the rack 48 drives the transmission wheel 474 to rotate forward, and the buckle on the second snap ring 491 pushes the buckle on the first snap ring 473, causing the second spring to deform and the first snap ring 473 to avoid the second snap ring 491. At the same time, the third spring pushes the telescopic rod 492, causing the telescopic rod 492 to be stuck in the telescopic slot 1, and the second snap ring 491 cannot rotate; When the lifting rod 43 rises, the rack 48 drives the transmission wheel 474 to reverse, and then the snap ring 1 473 engages with the snap ring 2 491, causing the transmission wheel 474 to drive the snap ring 1 473 to reverse, and the snap ring 1 473 drives the snap ring 2 491 to reverse. At this time, the telescopic rod 492 is pushed up by the telescopic groove 1, causing the spring 3 to deform, and the telescopic rod 492 shrinks into the telescopic groove 2. At the same time, the snap ring 2 491 will drive the pressure rod 471 to rotate, and the pressure rod 471 drives the pressure roller 472 to rotate. The pressure roller 472 will press the biomass during the rotation to prevent the biomass from shifting during cutting. At the same time, the rotation of the pressure roller 472 will drive the biomass to move in the direction of the cutter 42.

[0044] The remaining structure is the same as that of Example 2.

[0045] Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on the study of the drawings, the specification and the claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other devices or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to indicate names rather than to indicate any specific order. Any figure marks in the claims should not be construed as limiting the scope of protection. The functions of multiple parts appearing in the claims can be implemented by a single hardware or software module. The fact that certain technical features appear in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A gasifier for grain drying, comprising a gasifier, the gasifier comprising a furnace body (1) and a feed box (11), characterized in that: The furnace body (1) comprises a base plate (12), a shell (13) arranged on the base plate (12), a furnace (14) arranged on the base plate (12), and a combustion box (15) arranged on the furnace (14). A heat-insulating component (2) is arranged in the furnace body (1). The feed box (11) is provided with a screening component (3), and a cutting component (4) is provided on the screening component (3). The screening component (3) comprises a vertical plate (31), a transmission shaft (32) symmetrically arranged on the vertical plate (31), a bevel gear 1 (321) arranged on one of the transmission shafts (32), a horizontal plate (33) arranged in the feed box (11), a bevel gear 2 (331) arranged on the horizontal plate (33), an eccentric wheel (332) arranged on the horizontal plate (33), a connecting rod (333) arranged on the eccentric wheel (332), and a screening plate (334) arranged on the connecting rod (333).

2. A grain drying gasifier according to claim 1, characterized in that: A crushing roller (322) is provided on the transmission shaft (32), a box cover (111) is provided on the feed box (11), and a feed hopper (112) is provided on the box cover (111).

3. The grain drying gasifier according to claim 1, characterized in that: The heat-insulating component (2) comprises an outer cylinder (21), an inner cylinder (22) arranged inside the outer cylinder (21), and a heat exchanger (23) arranged on the combustion box (15).

4. The grain drying gasifier according to claim 1, characterized in that: A top box (24) is provided in the housing (13), and an air inlet cavity (25) is provided in the top box (24).

5. The grain drying gasifier according to claim 1, characterized in that: The cutting component (4) comprises a cutting rod (41), a cutting groove (411) arranged on the cutting rod (41), a cutting knife (42) arranged in the cutting groove (411), and a lifting rod (43) arranged on the cutting knife (42).

6. A gasifier for grain drying according to claim 5, characterized in that: The vertical plate (31) is provided with a mounting rod (44), a moving block (45) arranged on the mounting rod (44), a synchronization rod (451) arranged on the moving block (45), and a sliding sheet (431) arranged on the lifting rod (43).

7. A grain drying gasifier according to claim 6, characterized in that: A lifting plate (432) is arranged inside the lifting rod (43), guide blocks (433) are arranged in an array on the lifting plate (432), a first cutout (4321) is arranged on the lifting plate (432), and a second cutout (434) is arranged in an array on the lifting rod (43).

8. The grain drying gasifier according to claim 7, characterized in that: A driving cylinder (441) is symmetrically arranged inside the mounting rod (44), a driving rod (452) arranged on the moving block (45), a pressure wheel (453) arranged outside the driving rod (452), a locking rod (454) arranged inside the driving rod (452), and a pushing rod (455) arranged inside the driving rod (452).

9. A grain drying gasifier according to claim 8, characterized in that: The driving rod (452) is symmetrically provided with a rotating rod (46), a plug ring (461) provided on the rotating rod (46), a trigger rod (462) provided inside the rotating rod (46), a retracting rod (463) provided on the triggering rod (462), and an extending rod (464) provided on the retracting rod (463).

10. A grain drying gasifier according to claim 9, characterized in that: The mounting rod (44) is provided with a pressure block (47), a pressure rod (471) provided on the pressure block (47), a pressure roller (472) provided on the pressure rod (471), a snap ring 1 (473) provided on the pressure rod (471), a rack (48) provided on the lifting rod (43), a transmission wheel (474) provided on the snap ring 1 (473), a pressure cylinder (49) provided on the pressure block (47), a snap ring 2 (491) provided on the pressure cylinder (49), and a telescopic rod (492) symmetrically provided in the pressure cylinder (49).

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