Graded screening device for hydrogen production residues in production of coal gangue ecological organic fertilizer

Abstract

The invention relates to the technical field of coal gangue processing and screening equipment, and discloses a grading and screening device for hydrogen production residues in coal gangue ecological organic fertilizer production, which comprises a protective enclosure frame, a screening mechanism is arranged in the protective enclosure frame, the screening mechanism comprises a screening box, and a plurality of layers of screening assemblies are arranged in the screening box. The screening assembly is composed of a plurality of screening rods, the number of the screening rods on each layer is sequentially increased from top to bottom, the screening rods on the upper layer are connected with the corresponding screening rods on the lower portion through connecting plates, sliding rods are fixed to the two ends of each screening rod, and the sliding rods are arranged on sliding ways formed in the screening box in a sliding mode. According to the screening device, the screening box, the screening rods, the sliding rods and the adjusting plate are arranged, the adjusting plate can adjust the distance between the multiple screening rods through the sliding rods, the size of a channel between the multiple screening rods is adjusted, and screening work of different specifications can be carried out through cooperation of the screening rods and the screening box.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal gangue processing and screening equipment, in particular to a hydrogen residue grading and screening device in coal gangue ecological organic fertilizer production. BACKGROUND

[0002] The soil left after mining is barren, heavy metals exceed the standard, and the water retention capacity is poor, and the ecological restoration is extremely difficult. The coal gangue improved organic fertilizer production line produces functional organic fertilizer designed for mine ecological restoration by scientifically proportioning mine waste coal gangue and organic fertilizer. It can not only absorb coal gangue solid waste, but also improve the soil structure of the mine, reduce the activity of heavy metals, provide core support for vegetation restoration and ecological reconstruction, become the key equipment of mine ecological restoration engineering, and become the key equipment of mine ecological restoration engineering. Coal gangue is a by-product of coal mining and washing, mainly containing carbon, silicon, aluminum, iron, calcium and other elements. After hydrogen production process (such as pyrolysis gasification hydrogen production, acid-base catalytic hydrogen production, etc.), the hydrogen production residue is catalyzed at high temperature. The originally insoluble mineral elements in coal gangue are converted into forms that can be easily absorbed by crops, which can directly replace part of the purchased mineral fertilizer (such as calcium fertilizer and magnesium fertilizer), reduce the raw material cost of organic fertilizer, and improve the nutrient balance. The functions of different particle size components are significantly different, and screening can realize "classification according to efficiency and use according to demand", avoiding the waste or conflict of mixed use.

[0003] The existing hydrogen residue grading and screening device in coal gangue ecological organic fertilizer production has uniform specifications for the screening of the equipment, and the size of the screen mesh aperture cannot be changed. Due to different causes of coal gangue and hydrogen production processes, the particle size distribution of hydrogen production residue is greatly different. When using a fixed aperture screen, incomplete screening or excessive screening problems may occur. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a hydrogen residue grading and screening device in coal gangue ecological organic fertilizer production, which solves the problem of incomplete screening or excessive screening caused by different causes of coal gangue and hydrogen production processes.

[0005] In order to achieve the above object, the present application is realized by the following technical scheme: the coal gangue ecological organic fertilizer production hydrogen production residue grading screening device, including the protective fence, the protective fence is internally provided with a screening mechanism, the screening mechanism includes a screening box, the screening box is internally provided with a plurality of screening assemblies, the screening assembly is composed of a plurality of screening rods, the number of the screening rods of each layer is sequentially increased from top to bottom, the screening rod of the upper layer is connected with the corresponding screening rod below through a connecting plate, and both ends of the plurality of screening rods are fixedly provided with sliding rods, the sliding rods are slidingly arranged on the slide of the screening box, the screening box is provided with an adjusting plate, a plurality of adjusting channels are formed in the adjusting plate, and the adjusting channels on both sides are arranged in an inverted V shape.

[0006] By adopting the above scheme, the spacing between the plurality of screening rods can be adjusted by the adjusting plate through the sliding rod, the size of the channel between the plurality of screening rods is adjusted, the screening rod is matched with the screening box, the sieving work of different specifications can be realized, the filter screen does not need to be repeatedly disassembled and replaced, and the convenience of use is effectively improved Preferably, the side surface of the screening box is fixedly provided with two limiting rods, the adjusting plate is slidingly arranged on the outer surface of the two limiting rods, a threaded rod is arranged between the two limiting rods, the threaded rod is rotatably installed outside the screening box, the adjusting plate is threadedly installed on the outer surface of the threaded rod, and the protective fence is internally provided with a driving mechanism for driving the threaded rod to rotate.

[0007] Preferably, the driving mechanism comprises a gas cylinder fixedly arranged on the inner wall of the protective fence, and a driving block fixedly connected with the output end of the gas cylinder, a plurality of positioning rods are fixedly arranged on the bottom of the driving block, a mounting plate is slidingly arranged between the positioning rods on both sides, a plurality of fixing rods are mounted on the screening box, the mounting plate is slidingly arranged on the outer surface of the plurality of fixing rods, the bottom end of the threaded rod is fixedly provided with a gear, and a toothed plate is fixedly arranged on the mounting plate and engaged with the gear.

[0008] Preferably, a plurality of guide plates are fixedly arranged in the screening box, the guide plates are arranged in an inclined manner, and the bottom of the guide plate is in close contact with the surface of the screening rod.

[0009] Preferably, a sliding door is sealingly hinged to the screening box, and the side of the plurality of screening rods opposite to the sliding door is inclinedly provided with an arc surface for discharging residue.

[0010] Preferably, a plurality of spring telescopic supporting rods are fixedly arranged at the bottom of the protective fence, the top end of the spring telescopic supporting rod is provided in a circular arc surface, and the circular arc surface is in close contact with the bottom of the screening box.

[0011] Preferably, the bottom of the protective fence is provided with a discharging portion which is triangularly inclined and protruded to one side.

[0012] Preferably, the protective fence is internally provided with a vibrating mechanism for driving the screening box to vibrate screening, the vibrating mechanism comprising a driving shaft rotatably installed in the protective fence, and a rotary motor fixed on the protective fence, the end of the driving shaft being fixedly connected with the output end of the rotary motor, the outer surface of the driving shaft being eccentrically fixed with a transverse vibration wheel, the side of the screening box being fixed with a plurality of supporting rods, the end of the plurality of supporting rods being fixed with a same contact plate, the screening box and the contact plate being in close contact with the outer surface of the transverse vibration wheel.

[0013] Preferably, the outer surface of the driving shaft is fixed with two vertical vibration blocks, the vertical vibration blocks being provided with alternating concave-convex surfaces, and the concave-convex surfaces of the upper and lower vertical vibration blocks being staggered and in close contact with the surface of the screening box.

[0014] Preferably, the protective fence is provided with a crushing mechanism above the screening box, the crushing mechanism comprising a crushing box installed on the protective fence, two crushing rollers being rotatably installed in the crushing box, and two driving motors being fixed on the side of the crushing box, the end of the crushing roller being fixedly connected with the output shaft of the adjacent driving motor.

[0015] The application provides a hydrogen residue grading and screening device in coal gangue ecological organic fertilizer production. 1、The present application is provided with a screening box, a screening rod, a sliding rod and an adjusting plate, the adjusting plate can adjust the spacing between the multiple screening rods through the sliding rod, the size of the channel between the multiple screening rods is adjusted, the screening rod cooperates with the screening box to realize different specifications of screening work, and the filter screen does not need to be repeatedly disassembled and replaced, thereby effectively improving the convenience of use.

[0016] 2、The present application is provided with a driving mechanism, a threaded rod and a limiting rod, the driving mechanism drives the threaded rod to rotate, the threaded rod cooperates with the limiting rod to drive the adjusting plate to move up and down, the threaded rod can realize self-locking of the adjusting plate to avoid the problem of up and down shaking of the adjusting plate, when the threaded rod drives the adjusting plate to move up and down, the sliding rod slides in the adjusting slide to make the multiple sliding rods approach or move away from each other, the sliding rod moves to drive the screening rod to move synchronously, thereby realizing the spacing adjustment of the screening rod.

[0017] 3、The present application is provided with a cylinder, a driving block, a positioning rod, a mounting plate, a fixed rod, a gear and a toothed plate, the cylinder drives the driving block to move, the driving block drives the positioning rod to move synchronously, the positioning rod contacts the mounting plate to drive the mounting plate to move, the mounting plate slides on the fixed rod to drive the toothed plate to move, the toothed plate meshes with the gear, thereby driving the gear to rotate, realizing the adjustment of the position of the adjusting plate, the positioning rod and the mounting plate are contacted to adjust, which can effectively reduce the damage of the cylinder caused by the vibration of the screening box itself, and improve the durability.

[0018] 4. This invention, by setting up a rotary motor, a drive shaft, a transverse vibrating wheel, a support rod, and a contact plate, enables the rotary motor to drive the drive shaft to rotate, which in turn drives the transverse vibrating wheel to rotate eccentrically. When the transverse vibrating wheel rotates, it drives the screening box to move laterally through the contact plate and the support rod, which can perform transverse vibration screening of the waste residue inside the screening box, effectively preventing the waste residue from accumulating in one place and improving screening efficiency.

[0019] 5. This invention, by setting up vertical vibrating blocks, causes the vertical vibrating blocks to rotate synchronously when the rotating motor drives the drive shaft to rotate. When the convex surface of the upper vertical vibrating block and the concave surface of the lower vertical vibrating block move to fit against the screening box, the screening box is driven to move downward. Conversely, as the rotation continues, the concave surface of the upper vertical vibrating block and the convex surface of the lower vibrating wheel contact the screening box, causing the screening box to move upward. This achieves the up-and-down vibration of the screening box. Working in conjunction with the horizontal vibrating wheel, it can effectively prevent large particles of waste residue from accumulating at the bottom, thus avoiding the problem of small particles at the top not being able to be screened. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention from another angle; Figure 3 This is a schematic cross-sectional view of the protective frame and crushing box of the present invention; Figure 4 This is a schematic cross-sectional view of the protective frame structure of the present invention; Figure 5 This is a schematic diagram of the protective frame structure from another angle. Figure 6 This is a schematic cross-sectional view of the screening box of the present invention; Figure 7 This is a schematic diagram of the screening mechanism of the present invention; Figure 8 This is a schematic diagram of the spring telescopic support rod structure of the present invention; Figure 9 This is a schematic diagram of the drive mechanism structure of the present invention; Figure 10 This is a schematic diagram of the toothed plate structure of the present invention; Figure 11 This is a schematic diagram of the vibration mechanism structure of the present invention.

[0021] 1, protective fence; 2, screening mechanism; 201, screening box; 202, screening rod; 203, guide plate; 204, connecting plate; 205, sliding rod; 206, adjusting plate; 207, limiting rod; 208, threaded rod; 209, spring telescopic support rod; 3, crushing mechanism; 301, crushing box; 302, crushing roller; 303, driving motor; 4, vibration mechanism; 401, driving shaft; 402, rotary motor; 403, contact plate; 404, transverse vibration wheel; 405, vertical vibration block; 406, support rod; 5, driving mechanism; 501, mounting plate; 502, positioning rod; 503, toothed plate; 504, gear; 505, fixed rod; 506, driving block; 507, air cylinder. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely below in combination with the drawings of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Embodiment one

[0024] Please refer to the drawings Figure 1 -Appendix Figure 4 The present application provides a hydrogen residue grading and screening device in the production of coal gangue ecological organic fertilizer, which comprises a protective fence 1, and a screening mechanism 2 is arranged inside the protective fence 1. The screening mechanism 2 comprises a screening box 201, and a plurality of screening assemblies are arranged inside the screening box 201. The screening assemblies are composed of a plurality of screening rods 202. The number of the screening rods 202 at each layer is increased from top to bottom. The screening rod 202 at the upper layer is connected with the corresponding screening rod 202 below through a connecting plate 204. The two ends of the plurality of screening rods 202 are both fixed with a sliding rod 205. The sliding rod 205 is slidingly arranged on a slide channel formed on the screening box 201. An adjusting plate 206 is arranged on the screening box 201. A plurality of adjusting channels are formed on the adjusting plate 206. The plurality of adjusting channels at both sides are arranged in a reverse V shape. The sliding rod 205 is slidingly arranged in the corresponding adjusting channel. By arranging the screening box 201, the screening rod 202, the sliding rod 205 and the adjusting plate 206, the spacing between the plurality of screening rods 202 can be adjusted by the adjusting plate 206 through the sliding rod 205. The size of the channel between the plurality of screening rods 202 is adjusted. By cooperating the screening rod 202 with the screening box 201, the screening work of different specifications can be realized. The filter screen does not need to be repeatedly disassembled and replaced, and the convenience of use is effectively improved.

[0025] Specifically, please refer to the drawings Figure 5 -Appendix Figure 7The side surface of the screening box 201 is fixed with two limiting rods 207, the adjusting plate 206 is slidingly arranged on the outer surface of the two limiting rods 207, and a threaded rod 208 is arranged between the two limiting rods 207, the threaded rod 208 is rotationally installed outside the screening box 201, the adjusting plate 206 is screwedly installed on the outer surface of the threaded rod 208, and the protective fence 1 is internally provided with a driving mechanism 5 for driving the threaded rod 208 to rotate; By arranging the driving mechanism 5, the threaded rod 208 and the limiting rod 207, the driving mechanism 5 drives the threaded rod 208 to rotate, the threaded rod 208 is matched with the limiting rod 207 to drive the adjusting plate 206 to move up and down, the threaded rod 208 can realize self-locking of the adjusting plate 206, so as to avoid the problem that the adjusting plate 206 shakes up and down, when the threaded rod 208 drives the adjusting plate 206 to move up and down, the sliding rod 205 slides in the adjusting slide, so that the plurality of sliding rods 205 are close to or away from each other, the movement of the sliding rod 205 drives the screening rods 202 to move synchronously, and the spacing adjustment of the screening rods 202 is realized.

[0026] Specifically, please refer to the accompanying drawings Figure 9 and the accompanying drawings Figure 10 The driving mechanism 5 comprises a cylinder 507 fixed in the inner wall of the protective fence 1 and a driving block 506 fixedly connected with the output end of the cylinder 507, a plurality of positioning rods 502 are fixed to the bottom of the driving block 506, a mounting plate 501 is slidingly arranged between the two positioning rods 502, a plurality of fixed rods 505 are arranged on the screening box 201, the mounting plate 501 is slidingly arranged on the outer surface of the plurality of fixed rods 505, a gear 504 is fixed to the bottom end of the threaded rod 208, and a toothed plate 503 is fixed to the mounting plate 501 and is in meshing connection with the gear 504; By arranging the cylinder 507, the driving block 506, the positioning rod 502, the mounting plate 501, the fixed rod 505, the gear 504 and the toothed plate 503, the cylinder 507 is used for driving the driving block 506 to move, the driving block 506 drives the positioning rod 502 to move synchronously, the positioning rod 502 drives the mounting plate 501 to move in contact with the mounting plate 501, the mounting plate 501 slides on the fixed rod 505 to drive the toothed plate 503 to move, the toothed plate 503 is in meshing connection with the gear 504, and the gear 504 drives the threaded rod 208 to rotate, so that the position of the adjusting plate 206 is adjusted, the positioning rod 502 is in contact with the mounting plate 501 for adjustment, the damage of the cylinder 507 caused by the vibration of the screening box 201 itself is effectively reduced, and the durability is improved.

[0027] Specifically, please refer to the accompanying drawings Figure 4 - the accompanying drawings Figure 6 A plurality of guide plates 203 are fixed in the screening box 201, the guide plates 203 are arranged in an inclined manner, and the bottom of the guide plate 203 is in contact with the surface of the screening rod 202. By setting the guide plate 203, the incoming waste residue can be guided by the guide plate 203, so that the waste residue can fall on the screening rod 202, ensuring the stable operation of the screening work.

[0028] Specifically, please refer to the attached Figure 4 and the attached Figure 6 , the sealing hinge of the screening box 201 is provided with a sliding door, and the side of the sliding door opposite to the screening rods 202 is provided with an arc surface for discharging residue. The bottom of the protective fence 1 is provided with a triangularly inclined discharge portion. By setting the inclined arc surface and the inclined discharge portion, the waste residue can be discharged along the inclined arc surface and the inclined discharge portion, which helps to quickly discharge the residue.

[0029] Specifically, please refer to the attached Figure 8 , the bottom of the protective fence 1 is fixedly provided with a plurality of spring telescopic supporting rods 209, the top end of the spring telescopic supporting rod 209 is provided with a circular arc surface, and the circular arc surface is in close contact with the bottom of the screening box 201. By setting the spring telescopic supporting rod 209, the spring telescopic supporting rod 209 supports and buffers the screening box 201. When the waste residue falls into the screening box 201, the impact can be reduced and buffered, and at the same time, the spring itself can vibrate to realize vibration screening and improve the screening efficiency.

[0030] Example two

[0031] Specifically, please refer to the attached Figure 5 , the attached Figure 6 and the attached Figure 11 , which is different from example one. The embodiment is used to solve the problem of waste residue accumulation and screening supplement. The protective fence 1 is provided with a vibration mechanism 4 for driving the screening box 201 to vibrate and screen. The vibration mechanism 4 includes a driving shaft 401 rotatably installed in the protective fence 1 and a rotary motor 402 fixed on the protective fence 1. The end of the driving shaft 401 is fixedly connected with the output end of the rotary motor 402. The outer surface of the driving shaft 401 is eccentrically fixed with a transverse vibration wheel 404. The side of the screening box 201 is fixedly provided with a plurality of supporting rods 406. The ends of the supporting rods 406 are fixedly provided with a same contact plate 403. The screening box 201 and the contact plate 403 are in close contact with the outer surface of the transverse vibration wheel 404. By setting the rotary motor 402, the driving shaft 401, the transverse vibration wheel 404, the supporting rods 406 and the contact plate 403, the rotary motor 402 drives the driving shaft 401 to rotate, the driving shaft 401 drives the transverse vibration wheel 404 to eccentrically rotate, and the transverse vibration wheel 404 drives the screening box 201 to move transversely through the contact plate 403 and the supporting rods 406 when the transverse vibration wheel 404 rotates. The waste residue in the screening box 201 can be transversely vibrated and screened, effectively avoiding the accumulation of waste residue in one place and improving the screening efficiency.

[0032] Specifically, please refer to the attached Figure 5 , attached Figure 6 and attached Figure 11 , the outer surface of the drive shaft 401 is fixed with two vertical vibration blocks 405, the vertical vibration blocks 405 are provided with alternating concave and convex surfaces, and the concave and convex surfaces of the upper and lower vertical vibration blocks 405 are staggered and fit the surface of the screening box 201; By setting the vertical vibration block 405, the rotating motor 402 drives the drive shaft 401 to rotate, and at the same time, the vertical vibration block 405 is driven to rotate synchronously. When the upper vertical vibration block 405 convex surface and the lower vertical vibration block 405 concave surface move to fit the screening box 201, the screening box 201 is driven to move downward. Conversely, continue to rotate, the upper vertical vibration block 405 concave surface and the lower vibration wheel convex surface contact the screening box 201, so that the screening box 201 moves upward, realizing the up and down vibration work of the screening box 201. Cooperate with the horizontal vibration wheel 404, which can effectively avoid the problem that the large particle waste residue is accumulated at the bottom, causing the small particles above cannot be screened.

[0033] Specifically, please refer to the attached Figure 1 -attached Figure 3 , the protective fence 1 is located above the screening box 201 and is provided with a crushing mechanism 3. The crushing mechanism 3 includes a crushing box 301 mounted on the protective fence 1, two crushing rollers 302 are rotatably installed in the crushing box 301, and two drive motors 303 are fixed on the side surface of the crushing box 301. The end of the crushing roller 302 is fixedly connected with the output shaft of the adjacent drive motor 303. By setting the crushing roller 302 and the drive motor 303, the two drive motors 303 drive the two crushing rollers 302 to rotate relative to each other, which can preliminarily crush the entering waste residue, avoiding the large block waste residue directly entering into the inside of the screening box 201, causing blockage.

[0034] Working principle: Start the air cylinder 507, the air cylinder 507 drives the driving block 506 to move, the driving block 506 drives the positioning rod 502 to move synchronously, the positioning rod 502 contacts the mounting plate 501 to drive the mounting plate 501 to move, the mounting plate 501 slides on the fixed rod 505 to drive the toothed plate 503 to move. The toothed plate 503 is engaged with the gear 504, which in turn drives the gear 504 to rotate with the threaded rod 208. The threaded rod 208 rotates and cooperates with the limiting rod 207 to drive the adjusting plate 206 to move up and down. When the adjusting plate 206 moves up and down, the sliding rod 205 slides in the adjusting slide, so that the plurality of sliding rods 205 move closer to each other or farther away from each other. The sliding rod 205 moves to drive the screening rod 202 to move synchronously, realizing the spacing adjustment work of the screening rod 202, which can perform different specifications of screening work; The driving motor 303 is started, the driving motor 303 drives the two crushing rollers 302 to rotate oppositely, the entering waste residue can be preliminarily crushed, the waste residue falls on the screening rod 202 after being crushed by the crushing rollers 302, and the screening work is carried out; The rotary motor 402 is controlled to be started, the rotary motor 402 drives the driving shaft 401 to rotate, the driving shaft 401 drives the transverse vibration wheel 404 to rotate eccentrically, the transverse vibration wheel 404 drives the screening box 201 to move transversely through the contact plate 403 and the supporting rod 406 when rotating, the waste residue in the screening box 201 can be transversely vibrated and screened, the driving shaft 401 rotates synchronously with the vertical vibration block 405, when the upper vertical vibration block 405 convex surface and the lower vertical vibration block 405 concave surface move to be attached to the screening box 201, the screening box 201 is driven to move downward, conversely, the screening box 201 is continuously driven to move upward, the upper vertical vibration block 405 concave surface and the lower vertical vibration block 405 convex surface are in contact with the screening box 201, and the screening box 201 is driven to move upward, so that the screening box 201 is vibrated up and down.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A coal gangue ecological organic fertilizer production hydrogen residue grading and screening device, characterized in that, The application relates to a protective fence (1) internally provided with a screening mechanism (2), wherein the screening mechanism (2) comprises a screening box (201) internally provided with multiple screening assemblies, the screening assemblies are composed of multiple screening rods (202), the number of the screening rods (202) of each layer is sequentially increased from top to bottom, the screening rod (202) of the upper layer is connected with the corresponding screening rod (202) below through a connecting plate (204), both ends of the multiple screening rods (202) are fixedly provided with sliding rods (205), the sliding rods (205) are slidingly arranged on the slide ways arranged on the screening box (201), an adjusting plate (206) is arranged on the screening box (201), multiple adjusting channels are arranged on the adjusting plate (206), the multiple adjusting channels on the two sides are arranged in an inverted V shape, and the sliding rods (205) are slidingly arranged in the corresponding adjusting channels.

2. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 1, characterized in that: Two limiting rods (207) are fixedly arranged on the side surface of the screening box (201), the adjusting plate (206) is slidingly arranged on the outer surface of the two limiting rods (207), a threaded rod (208) is arranged between the two limiting rods (207), the threaded rod (208) is rotatably arranged outside the screening box (201), the adjusting plate (206) is screwedly arranged on the outer surface of the threaded rod (208), and a driving mechanism (5) for driving the threaded rod (208) to rotate is arranged in the protective fence (1).

3. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 2, characterized in that: The driving mechanism (5) comprises a cylinder (507) fixedly arranged on the inner wall of the protective fence (1) and a driving block (506) fixedly connected with the output end of the cylinder (507), multiple positioning rods (502) are fixedly arranged on the bottom of the driving block (506), a mounting plate (501) is slidingly arranged between the two positioning rods (502), multiple fixing rods (505) are arranged on the screening box (201), the mounting plate (501) is slidingly arranged on the outer surface of the multiple fixing rods (505), a gear (504) is fixedly arranged on the bottom end of the threaded rod (208), and a toothed plate (503) is fixedly arranged on the mounting plate (501) and engaged with the gear (504).

4. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 1, characterized in that: Multiple guide plates (203) are fixedly arranged in the screening box (201), the guide plates (203) are arranged in an inclined mode, and the bottom of the guide plate (203) is in abutment with the surface of the screening rod (202).

5. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 1, characterized in that: A pull door is sealingly hinged to the screening box (201), and the side of the multiple screening rods (202) opposite to the pull door is provided with an arc surface for discharging slag.

6. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 1, characterized in that: Multiple spring telescopic supporting rods (209) are fixedly arranged on the bottom of the protective fence (1), the top end of the spring telescopic supporting rod (209) is provided with a circular arc surface, and the circular arc surface is in abutment with the bottom of the screening box (201).

7. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 1, characterized in that: The bottom of the protective fence (1) is provided with a discharging part which is triangularly and obliquely protruded to one side.

8. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 1, characterized in that: The protective fence (1) is internally provided with a vibrating mechanism (4) for driving the screening box (201) to vibrate and screen, the vibrating mechanism (4) comprises a driving shaft (401) rotatably installed in the protective fence (1), and a rotary motor (402) fixed on the protective fence (1), the end of the driving shaft (401) is fixedly connected with the output end of the rotary motor (402), the outer surface of the driving shaft (401) is eccentrically fixed with a transverse vibrating wheel (404), the side of the screening box (201) is fixed with a plurality of supporting rods (406), the ends of the plurality of supporting rods (406) are fixed with the same contact plate (403), and the screening box (201) and the contact plate (403) are in close contact with the outer surface of the transverse vibrating wheel (404).

9. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 8, characterized in that: The outer surface of the driving shaft (401) is fixed with two vertical vibrating blocks (405), the vertical vibrating blocks (405) are provided with alternating concave-convex surfaces, and the concave-convex surfaces of the upper and lower vertical vibrating blocks (405) are staggered and in close contact with the surface of the screening box (201).

10. The coal gangue ecological organic fertilizer production hydrogen production residue grading screening device according to claim 1, characterized in that: The protective fence (1) is provided with a crushing mechanism (3) above the screening box (201), the crushing mechanism (3) comprises a crushing box (301) installed on the protective fence (1), two crushing rollers (302) are rotatably installed in the crushing box (301), and two driving motors (303) are fixed on the side of the crushing box (301), and the ends of the crushing rollers (302) are fixedly connected with the output shafts of the adjacent driving motors (303).

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