Dust reduction device for peanut harvester

Abstract

The invention discloses a dust reduction device for a peanut harvester, comprising a dust reduction box with an opening at the lower end, a conveying pipe and an air blowing device arranged on the top of the dust reduction box, a plurality of dust removal bags with openings at the lower ends are vertically arranged in the dust reduction box, an air blowing device is arranged outside the dust reduction box, the air blowing device comprises a gas cylinder, an air pump connected to the gas cylinder, a plurality of connecting pipes arranged on the gas cylinder and valves arranged on the connecting pipes, the other end of the connecting pipe is connected to the dust reduction box, a feeding plate is arranged below the dust reduction box, and the invention can be later installed on the peanut harvester to solve the problem of large dust emission from the peanut harvester.

Description

Technical Field

[0001] The invention relates to the field of dust reduction equipment, in particular to a dust reduction device for a peanut harvester. Background Art

[0002] The peanut harvester will bring up a lot of dust during operation, which will affect the workers' vision and pollute the environment. The dust will damage the respiratory system when inhaled by the human body. Therefore, the peanut harvester needs to be equipped with a dust reduction device.

[0003] The Chinese invention patent application with publication number CN110302627A discloses a dust removal device for a peanut harvester, comprising a dust removal box, a dust removal fan and a dust collector. The dust collector is arranged on the upper part of the dust removal box, a dust collecting box is arranged below the dust collector, and the dust removal fan is arranged on the top of the dust removal box. The dust collector is connected with the air inlet of the dust removal fan through an air outlet duct, and the air outlet of the dust removal fan is connected with the dust removal bag. The dust removal device is installed on the upper part of the grass collecting box of the peanut picking machine, and the air containing a large amount of dust discharged by the impurity exhaust fan enters the dust removal box and then enters the dust removal device through the air inlet. The dust removal bag at the rear of the dust removal device discharges the filtered clean gas into the atmosphere, and the dust reduction effect is good. However, during the movement of the peanut harvester, the dust removal bag needs to be frequently removed to pour out the dust accumulated inside, which is inconvenient to use, and the dust removal bag is easily blocked, and the wind blown by the fan cannot be discharged in time, which affects the normal operation of the peanut harvester.

[0004] The Chinese utility model patent with publication number CN207410776U discloses a self-propelled peanut harvester, including a harvester body, the harvester body including a conveying mechanism box, a conveying fan connected to a straw collection box is arranged on the conveying mechanism box, a dust removal duct is arranged at the outlet of the conveying fan, and the dust removal duct is arranged along the outer wall of the straw collection box; a straw mesh plate is arranged at the interface between the dust removal duct and the conveying fan, and the straw mesh plate corresponds to the entrance of the straw collection box. The dust removal duct includes a horizontal section located above the straw collection box and a vertical section arranged on the side of the straw collection box, and the air outlet of the horizontal section is connected to the air inlet of the vertical section. The inner wall of the horizontal section is arranged with a horizontal spray pipe, and the air outlet of the horizontal section is provided with a vertically arranged mud guard, which has a certain dust reduction effect, but there is no dust reduction effect when no water is added. Therefore, it is necessary to replenish the water required for spraying in time. Since peanut harvesting operations are usually carried out outdoors, it is inconvenient to add water and it is troublesome to use. In addition, the dust removal device changes the structure of the peanut harvester, rather than being an independent dust removal device that can be installed later, and cannot change the problem of large dust in the existing peanut harvester. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a peanut harvester dust reduction device to address the deficiencies in the prior art, which can be installed on the peanut harvester at a later stage to solve the problem of large dust generation by the peanut harvester.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A dust reduction device for a peanut harvester comprises a dust reduction box with an opening at the lower end, a conveying pipe and an air blowing device arranged on the top of the dust reduction box, a plurality of dust removal bags with openings at the lower ends are vertically arranged in the dust reduction box, an air blowing device is arranged outside the dust reduction box, the air blowing device comprises a gas cylinder, an air pump connected to the gas cylinder, a plurality of connecting pipes arranged on the gas cylinder and valves arranged on the connecting pipes, the other end of the connecting pipe is connected to the dust reduction box, and a feed plate is arranged below the dust reduction box.

[0008] Furthermore, the dust removal bag is composed of a bag support and a cloth bag arranged outside the bag support, a support rod is arranged in the dust removal box, a connecting piece is vertically arranged between the support rod and the top of the dust removal bag, a horizontal plate one is horizontally arranged in the dust removal box, and a plurality of through holes two matching the bottom end of the dust removal bag are arranged on the horizontal plate one, the diameter of the through hole two is larger than that of the dust removal bag, and the bottom end of the dust removal bag is arranged on one side of the through hole two.

[0009] Furthermore, one side of the dust reduction box top plate is rotatably connected to the dust reduction box, and the other side is detachably connected to the dust reduction box.

[0010] Furthermore, the dust reduction box includes an adsorption chamber and an ash hopper, the dust removal bag and the transverse plate are arranged in the adsorption chamber, the connection point between the connecting pipe and the dust reduction box is located on the adsorption chamber above the transverse plate, and a discharge plate is arranged below the ash hopper.

[0011] Furthermore, a second transverse plate is arranged at the lower part of the ash hopper, and a third through hole is arranged in the middle of the second transverse plate.

[0012] Furthermore, a plurality of brackets are arranged below the gas cylinder, the brackets are fixed on the dust reduction box, an arc groove matching the gas cylinder is arranged on the bracket, and the gas cylinder is arranged in the arc groove.

[0013] Furthermore, the gas cylinder is provided with an automatic exhaust valve and a pressure gauge.

[0014] Furthermore, an electric power cabinet is arranged on the dust reduction box, a pulse jet controller is arranged in the electric power cabinet, the pulse jet controller is electrically connected to a valve, and the valve is a solenoid valve.

[0015] Furthermore, the unloading plate is rotatably connected to the dust reduction box, a connecting rod is arranged on the unloading plate, and one end of the connecting rod is connected to a counterweight block.

[0016] When harvesting peanuts, the peanut vines need to be laid out to dry, and then a peanut harvester is used to perform agronomic operations such as picking, picking fruits, conveying peanut fruits, chopping vines, and conveying vines. However, the peanut harvester will discharge a large amount of dust particles from the dust outlet during operation, which seriously pollutes the environment. Therefore, a dust reduction device needs to be installed on the peanut harvester. At present, most dust reduction is achieved by modifying the structure of the peanut harvester, because the dust outlet of the peanut harvester is mostly located on the grass box, and the grass box will rotate sideways during the unloading process, and the position will change. It is very difficult and not easy to install a dust reduction device on the peanut harvester that is connected to the dust outlet. Therefore, technicians in this field will not easily think of installing a dust reduction device on the peanut harvester.

[0017] The beneficial effects of the present invention are:

[0018] 1. A dust reduction device for a peanut harvester, comprising a dust reduction box with an opening at the lower end, a conveying pipe and a blowing device arranged on the top of the dust reduction box, a plurality of dust removal bags with openings at the lower ends being vertically arranged in the dust reduction box, a blowing device being arranged outside the dust reduction box, the blowing device comprising a gas cylinder, an air pump connected with the gas cylinder, a plurality of connecting pipes arranged on the gas cylinder and a valve arranged on the connecting pipe, the other end of the connecting pipe being connected with the dust reduction box, a blanking plate being arranged below the dust reduction box, dust discharged from the dust discharge port enters the dust reduction box through the conveying pipe, is adsorbed by the dust removal bag and then blown away by the blowing device and discharged, dust will not be directly discharged into the air, thereby greatly reducing dust; the present invention can be installed on the peanut harvester as a separate accessory at a later stage, does not affect the structure of the peanut harvester, and is more practical.

[0019] 2. The dust removal bag is composed of a bag support and a cloth bag arranged outside the bag support. A support rod is arranged in the dust reduction box, and a connecting piece is vertically arranged between the support rod and the top of the dust removal bag. A horizontal plate 1 is horizontally arranged in the dust reduction box, and a plurality of through holes 2 matching the bottom end of the dust removal bag are arranged on the horizontal plate 1. The diameter of the through hole 2 is larger than the dust removal bag. The bottom end of the dust removal bag is arranged on one side of the through hole 2. Large particles of dust and small particles of dust adsorbed on the dust removal bag blown off by the blowing device can fall from the gap between the through hole 2 and the dust removal bag 1, and the dust can be discharged in a concentrated manner to reduce dust.

[0020] 3. One side of the top plate of the dust reduction box is rotatably connected to a side plate of the dust reduction box, and the other side is detachably connected to the other side plate of the dust reduction box. One side of the top plate of the dust reduction box is rotatably connected to a side plate of the dust reduction box, and the other side is detachably connected to the other side plate of the dust reduction box. The top plate of the dust reduction box can be opened to facilitate inspection and maintenance of the interior of the dust reduction box.

[0021] 4. A second horizontal plate is arranged at the lower part of the ash hopper, and a fourth through hole is arranged on the second horizontal plate, so as to increase the strength of the ash hopper while discharging dust particles, and prevent the ash hopper from being deformed due to severe shaking and vibration when the peanut harvester is working.

[0022] 5. A plurality of brackets are arranged under the gas cylinder, the brackets are fixed on the dust reduction box, an arc groove matching the gas cylinder is arranged on the bracket, and the gas cylinder is arranged in the arc groove, which has a simple and reliable structure and is easy to install.

[0023] 6. When the pressure in the gas cylinder reaches a certain level, the automatic exhaust valve will automatically exhaust the gas to prevent the pressure in the gas cylinder from being too high and causing an explosion, which is safer. The pressure gauge can help the user determine whether the gas cylinder is leaking by observing the indication of the pressure gauge, which is more practical.

[0024] 7. An electric power cabinet is arranged on the dust reduction box, and a pulse jet controller is arranged in the electric power cabinet to prevent dust accumulation on the pulse jet controller and prevent it from being wetted by rain, thereby ensuring the normal operation of the blowing device; the pulse jet controller is electrically connected to the valve, and the valve is a solenoid valve. The pulse jet controller is electrically connected to the valve, and the valve is a solenoid valve. The solenoid valve can be controlled by the pulse jet controller. When the pressure in the gas cylinder is sufficient, the gas is sprayed into the dust reduction box to shake off as much dust attached to the dust bag as possible, so that the dust bag maintains a high adsorption capacity and ensures the dust reduction effect.

[0025] 8. The unloading plate is rotatably connected to the dust reduction box, and the unloading plate is connected to the counterweight block through a connecting rod. When the dust in the ash hopper is stored to a certain weight, the unloading plate is rotated to open and the dust is discharged to achieve centralized discharge and further reduce dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a first embodiment of the present invention;

[0027] Figure 2 for Figure 1 Cross-sectional view of the dust reduction box and the conveying pipe along the AA direction;

[0028] Figure 3 for Figure 1 Cross-sectional view of the dust reduction box and the conveying pipe along the BB direction;

[0029] Figure 4 It is a schematic diagram of the structure of the dust removal bag and the horizontal plate 1;

[0030] Figure 5 It is a connection diagram of dust exhaust pipe, conveying pipe and adsorption chamber;

[0031] Figure 6 This is a schematic diagram of the installation of the dust removal device;

[0032] Figure 7 A schematic structural diagram of a second embodiment of the present invention;

[0033] Figure 8 It is a structural schematic diagram of a third embodiment of the present invention;

[0034] Among them: 1-dust reduction box, 2-conveying pipe, 3-dust removal bag, 4-gas cylinder, 5-air pump, 6-connecting pipe, 7-valve, 8-unloading plate, 9-bag support, 10-cloth bag, 11-support rod, 12-connecting piece, 13-transverse plate one, 14-convex edge, 15-air guide pipe, 16-through hole one, 17-through hole three, 18-air outlet, 19-adsorption chamber, 20-ash hopper, 21-transverse plate two, 22-through hole two, 23-bracket, 24-automatic exhaust valve, 25-pressure gauge, 26-power cabinet, 27-pulse jet controller, 28-connecting rod, 29-counterweight, 30-dust exhaust pipe, 31-baffle. DETAILED DESCRIPTION

[0035] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] like Figure 1-6 The first embodiment of the present invention is shown, a dust removal device for a peanut harvester, comprising a dust reduction box 1 with an opening at the lower end, a conveying pipe 2 and a blowing device arranged on the top of the dust reduction box 1, the dust reduction box 1 comprising an adsorption chamber 19 and an ash hopper 20, the adsorption chamber 19 is a steel rectangular shell structure with a roof, which is welded by a front plate, a rear plate, a top plate and two side plates, the conveying pipe 2 is a transparent steel rectangular shell structure, a through hole 16 is cut out of the middle of the top plate of the adsorption chamber 19 by a cutting machine, the conveying pipe 2 is vertically welded to the top plate of the adsorption chamber 19, the conveying pipe 2 and the adsorption chamber 19 are connected through the through hole 16, a dust exhaust pipe 30 is welded outside the dust exhaust port, and a through hole matching the conveying pipe 2 is arranged below the dust exhaust pipe 30, as shown in FIG. Figure 5As shown, the conveying pipe 2 is inserted into the through hole, and a groove is machined on a side plate on the upper part of the conveying pipe 2 by a cutting machine, so that the dust discharged from the dust outlet enters the adsorption chamber 19 along the dust exhaust pipe 30. 21 dust removal bags 3 are vertically arranged in the adsorption chamber 19, which are divided into three rows and seven columns. The dust removal bag 3 is composed of a bag support 9 and a cloth bag 10 fixed to the outside of the bag support 9 by adhesive. The cloth bag 10 opens downward, and dust will not accumulate inside, which is more practical. A support rod 11 is welded above each column of dust removal bags 3. The support rod 11 is solid round steel. The two ends of the support rod 11 are vertically welded to the front plate and the rear plate of the adsorption chamber 19 respectively. A connecting piece 12 is vertically arranged between the dust removal bag 3 and the support rod 11 to connect Component 12 is a tension spring with round hooks at both ends. The tension spring can reduce the instantaneous tension on the dust bag 3 due to inertia and extend the service life of the dust bag 3. One end of the connecting component 12 passes through the cloth bag 10 and is hung on the top of the bag support 9, and the other end is hung on the support rod 11 and fixed by welding or the like. A steel rectangular parallelepiped horizontal plate 13 is also arranged in the adsorption chamber 19. The horizontal plate 13 is horizontally welded in the adsorption chamber 19. The four sides of the horizontal plate 13 are tightly welded to the front plate, the rear plate and the two side plates of the adsorption chamber 19 respectively. A through hole 22 5 cm larger than the diameter of the bottom end of the dust bag 3 is punched on the horizontal plate 13 by a punching machine. After the bottom end of the dust bag 3 is inserted into the through hole 22, as shown in FIG. Figure 4 As shown, the dust bag 3 is fixed to the left side of the second through hole 22 by means of adhesive or the like to prevent the dust bag 3 from moving back and forth in the second through hole 22 and causing damage to the dust bag 3. Figure 1 and Figure 2 As shown, the lower part of the two side panels of the adsorption chamber 19 can be bent 45 degrees to both sides by a bending machine, and the two sides of the bent part are welded to the front plate and the rear plate of the adsorption chamber 19 through triangular steel plates, forming two side air outlets on both sides of the adsorption chamber 19, and the connection between the dust bag 3 and the second through hole 22 can be observed through the side air outlets. A ash hopper 20 is arranged at the lower part of the adsorption chamber 1, as shown in FIG. Figure 1 , Figure 2 and Figure 3As shown, the ash hopper 20 is surrounded by a front plate, a rear plate and two side plates. The front plate and the rear plate of the ash hopper 20 are both trapezoidal steel plates. The front plate of the ash hopper 20 and the front plate of the adsorption chamber 19 are assembled by welding or the like, and the two are in the same plane. The rear plate of the ash hopper 20 and the rear plate of the adsorption chamber 19 are connected by welding or the like, and the angle between the two is 155°. The lower plate 8 is fixed by welding or the like below the ash hopper 19, and the angle between the lower plate 8 and the rear plate of the ash hopper 20 is 150°. To increase the strength of the ash hopper 20, a horizontal plate 21 is horizontally welded between the front plate and the rear plate of the ash hopper 20, and a through hole 3 17 is cut out in the middle of the horizontal plate 21 by a cutting machine. To prevent dust from scattering when discharged along the unloading plate 8, the two side plates of the ash hopper 20 and the bottom of the front plate of the ash hopper 20 are connected to the baffle 31 by welding or the like, wherein the baffles under the two side plates of the ash hopper 20 are perpendicular to the ground, and the angle between the baffle under the front plate of the ash hopper 20 and the front plate of the ash hopper 20 is 170°. An air blowing device is arranged outside the adsorption chamber 19, and the air blowing device comprises a gas cylinder 4, an air pump 5 connected to the gas cylinder 4, a plurality of connecting pipes 6 arranged on the gas cylinder 4, and a valve arranged on the connecting pipe 6. The gas pumped by the air pump 5 is introduced into the gas cylinder 4 through the air guide pipe 15. The air pump 5 is placed on the peanut harvester. The gas cylinder 4 is a high-pressure gas cylinder. An automatic exhaust valve 24 and a pressure gauge 25 are installed on the gas cylinder 4. Two brackets 23 are arranged under the gas cylinder 4. The bracket 23 is three sections of angle steel welded together, such as Figure 1 As shown, the bracket 23 is fixed to the front plate of the adsorption chamber 19 by bolts, and an arc groove matching the gas cylinder 4 is cut out on the bracket 23 by a cutting machine. The gas cylinder 4 is placed horizontally in the arc groove and welded to the arc groove. The connecting pipe 6 is an L-shaped pipe, and the valve 7 is installed on the connecting pipe 6. The valve 7 is a right-angle solenoid valve. There are 8 connecting pipes 6. One end of the connecting pipe 6 is welded to the gas cylinder 4, and the other end is welded to the front plate of the adsorption chamber 19. Through holes communicating with the connecting pipe 6 are punched out on the gas cylinder 4 and the front plate of the adsorption chamber 19 by a punching machine, respectively. The airflow directly blown out from the through hole is located in the gap between the dust removal bags 3 and between the dust removal bags 3 and the adsorption chamber 19, reducing the direct impact on the dust removal bags 3 and increasing the service life of the dust removal bags 3. The power cabinet 26 is welded on the front plate of the adsorption chamber 19, and the pulse spray controller 27 is installed in the power cabinet 26 by screws. The pulse spray controller 27 is electrically connected to each valve 7 through a wire, and the pulse controller 27 and the air pump 5 are connected to the power supply device on the peanut harvester.

[0038] The dust reduction device is fixedly installed on the frame behind the grass box of the 4HZJ-2500 self-propelled peanut harvester. Channel steel 1 is welded on the front plate and the top of the two side plates of the ash hopper 19, and three channel steels 2 are welded on the frame to form a frame. Figure 6 As shown, channel steel 1 and channel steel 2 are fixed by bolts. Before use, adjust the pulse spraying controller 27 to control valve 7 to spray once a minute, and each spraying lasts 5 seconds.

[0039] Embodiment 2

[0040] like Figure 7 The second embodiment of the present invention is shown. The difference between this embodiment and the first embodiment is that the blanking plate 8 is hinged on the rear plate of the ash hopper 20 by a hinge, a connecting rod 28 is welded to the middle of the bottom surface of the blanking plate 8, and a counterweight block 29 is welded to the left end of the connecting rod 28. The counterweight block 29 is a steel ingot. When the dust on the blanking plate 8 accumulates to a certain mass, the blanking plate 8 opens, and after the dust is discharged, the blanking plate 8 automatically closes.

[0041] Embodiment 3

[0042] like Figure 8 The third embodiment of the present invention is shown, one side of the top plate of the adsorption chamber 19 is hinged to the back plate of the adsorption chamber 19 by a hinge, the outer side of the top end of the front plate of the adsorption chamber 19 is fixed to the flange 14 by bolts, the flange 14 is an angle steel, and the other side of the top plate of the adsorption chamber 19 is fixed to the flange 14 by bolts.

[0043] Embodiment 4

[0044] The difference between this embodiment and the first embodiment is that the bottom of the ash hopper 19 is surrounded by tarpaulin, and the baffle 31 and the unloading plate 8 are both located in the space surrounded by the tarpaulin. Tarpaulin buckles are installed on the top of the tarpaulin, and bolts are inserted into the tarpaulin buckles and fixed around the bottom of the ash hopper 19.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A dust reduction device for a peanut harvester, characterized in that: It comprises a dust reduction box (1) with an opening at the bottom, a conveying pipe (2) and a blowing device arranged at the top of the dust reduction box (1), a plurality of dust removal bags (3) with openings at the bottom are vertically arranged in the dust reduction box (1), a blowing device is arranged outside the dust reduction box (1), the blowing device comprises a gas cylinder (4), an air pump (5) connected to the gas cylinder (4), a plurality of connecting pipes (6) arranged on the gas cylinder (4), and a valve (7) arranged on the connecting pipe (6), the other end of the connecting pipe (6) is connected to the dust reduction box (1), and a blanking plate (8) is arranged below the dust reduction box (1); The dust removal bag (3) is composed of a bag support (9) and a cloth bag (10) arranged outside the bag support (9); a support rod (11) is arranged inside the dust removal box (1); a connecting piece (12) is vertically arranged between the support rod (11) and the top of the dust removal bag (3); a horizontal plate (13) is horizontally arranged inside the dust removal box (1); a plurality of through holes (22) matching the bottom end of the dust removal bag (3) are arranged on the horizontal plate (13); the diameter of the through holes (22) is larger than that of the dust removal bag (3); and the bottom end of the dust removal bag (3) is arranged on one side of the through holes (22); A connecting piece (12) is vertically arranged between the dust removal bag (3) and the support rod (11), and the connecting piece (12) is a tension spring with circular hooks at both ends; One end of the connecting piece (12) passes through the cloth bag (10) and is hung on the top of the bag support (9), and the other end is hung on the support rod (11) and fixed by welding; The dust removal bag (3) is fixed to the left side of the second through hole (22) by means of adhesive; The dust reduction box (1) comprises an adsorption chamber (19) and an ash hopper (20), the dust removal bag (3) and the transverse plate (13) are arranged in the adsorption chamber (19), and the connection point between the connecting pipe (6) and the dust reduction box (1) is located on the transverse plate (1). (13) A discharge plate (8) is provided below the ash hopper (20) on the adsorption chamber (19) above; The lower parts of the two side panels of the adsorption chamber (19) are bent 45 degrees to both sides by a bending machine, and the two sides of the bent part are welded to the front plate and the rear plate of the adsorption chamber (19) by triangular steel plates, so that two side air outlets are formed on both sides of the adsorption chamber (19), and the connection between the dust removal bag (3) and the second through hole (22) is observed through the side air outlets; The rear plate of the ash hopper (20) is connected to the rear plate of the adsorption chamber (19) by welding, and an angle of 155° is formed between the two. A feed plate (8) is fixed below the ash hopper (19) by welding, and an angle of 150° is formed between the feed plate (8) and the rear plate of the ash hopper (20); The side plates of the ash hopper (20) and the lower part of the front plate of the ash hopper (20) are connected to the baffle plate (31) by welding, wherein the baffle plates under the side plates of the ash hopper (20) are perpendicular to the ground, and the angle between the baffle plates under the front plate of the ash hopper (20) and the front plate of the ash hopper (20) is 170°; A plurality of brackets (23) are arranged below the gas cylinder (4), the brackets (23) are fixed on the dust reduction box (1), an arc-shaped groove matching the gas cylinder (4) is arranged on the brackets (23), and the gas cylinder (4) is arranged in the arc-shaped groove; The unloading plate (8) is rotatably connected to the dust reduction box (1), and a connecting rod (28) is provided on the unloading plate (8). One end of the connecting rod (28) is connected to a counterweight block (29).

2. The dust reduction device for a peanut harvester according to claim 1, characterized in that: One side of the top plate of the dust reduction box (1) is rotatably connected to the dust reduction box (1), and the other side is detachably connected to the dust reduction box (1).

3. The dust reduction device for a peanut harvester according to claim 1, characterized in that: A second horizontal plate (21) is arranged at the lower part of the ash hopper (20), and a third through hole (17) is arranged in the middle of the second horizontal plate (21).

4. The dust reduction device for a peanut harvester according to claim 1, characterized in that: The gas cylinder (4) is provided with an automatic exhaust valve (24) and a pressure gauge (25).

5. The dust reduction device for a peanut harvester according to claim 1, characterized in that: An electric power cabinet (26) is arranged on the dust reduction box (1), a pulse jet controller (27) is arranged in the electric power cabinet (26), the pulse jet controller (27) is electrically connected to a valve (7), and the valve (7) is a solenoid valve.

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