A device for adding material to a biogas tank

Abstract

The invention discloses a device for feeding a biogas tank, wherein an impurity removal box is fixed on a transmission box, a crushing box is fixed on the transmission box, and the side wall of the crushing box is connected with the impurity removal box through a crushing box feed port; a feeding box is arranged below the impurity removal box and the crushing box, a feeding push block is slidably installed in the feeding box, a rack one is fixed on one end of the feeding push block, the rack one is meshed with a half gear one, a tension spring is connected between one end of the feeding push block fixing the rack one and the side wall of the feeding box, and a limiting block is arranged on one side of the feeding push block fixing the tension spring; the top of the feeding box is connected with the crushing box through a crushing box discharge port; a gate is inserted at one end of the feeding box away from the tension spring, the gate is slidably installed in a gate mounting sleeve, a rack two is fixed on the gate, the rack two is meshed with a half gear two; the feeding box on the side of the gate away from the feeding push block is connected with the biogas tank through a feeding pipe. The beneficial effect of the invention is that biogas leakage is avoided during feeding.

Description

Technical Field

[0001] The invention relates to the technical field of feeding equipment, and more particularly to a device for feeding a biogas tank. Background Art

[0002] Large-scale biogas fermentation tanks generally use fully mixed fermentation tanks, which are large in size. After the crop straw is crushed, it is added into the fermentation tank body for closed fermentation and biogas production. In the prior art, large-scale biogas fermentation systems work continuously and continuously. Raw materials are added during the fermentation and production of biogas. This requires that the pressure inside the fermentation tank is maintained during the addition of raw materials, and biogas cannot leak out from the raw material filling port. In order to prevent biogas leakage and protect the environment at the same time, it is necessary to develop a device for adding materials to the biogas tank. Summary of the invention

[0003] In view of the above defects, the present invention provides a device for adding material to a biogas tank, which solves the problem of preventing biogas leakage while adding material to the biogas tank.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A device for feeding a biogas tank comprises an impurity removal box, a feeding port is provided at the top of the impurity removal box, an impurity removal box outlet is provided at the bottom of the impurity removal box, the impurity removal box is fixed on a transmission box, the transmission box is fixed on the ground, a crushing box is also fixed on the transmission box, and the side wall of the crushing box is connected to the impurity removal box through the crushing box feed port; a motor mounting frame is provided on the ground on one side of the transmission box, a reduction motor is installed on the top of the motor mounting frame, the output shaft of the reduction motor passes through the side wall of the transmission box and is connected to a transmission gear 1, the transmission gear 1 is meshed with a transmission gear 2, the transmission gear 2 is fixed on a crushing roller fixed shaft 1, and the crushing roller fixed shaft 1 is inserted into the transmission box and the side wall of the crushing box; A connecting gear 1 is installed on the crushing roller fixed shaft 1, and the connecting gear 1 is meshed with a connecting gear 2, and the connecting gear 2 is fixed on the crushing roller fixed shaft 2, and the crushing roller fixed shaft 2 is inserted on the side wall of the crushing box body. Crushing rollers are fixed on both the crushing roller fixed shaft 1 and the crushing roller fixed shaft 2, and the crushing rollers are arranged in the crushing box body, wherein the crushing roller fixed shaft 1 and the crushing roller fixed shaft 2 are both installed with bearing seats, and the bearing seats are fixed on the side wall of the crushing box body; a small gear is also installed on the crushing roller fixed shaft 1, and the small gear is meshed with a large gear, and the large gear is fixed on the large gear mounting shaft, and a bearing is installed at one end of the large gear mounting shaft, and the outer ring of the bearing is fixed on the side wall of the transmission box body, and the other end of the large gear mounting shaft is installed on the mounting shaft seat, and the bottom end of the mounting shaft seat is passed through The connecting rod is fixed on the bottom wall of the transmission box body; a sprocket wheel 1 is installed on the large gear mounting shaft, and the sprocket wheel 1 is connected to the sprocket wheel 2 through a chain, and the sprocket wheel 2 is fixed to the push roller fixed shaft 1, and the push roller fixed shaft 1 is inserted on the side wall of the impurity removal box body, and the push roller 1 is fixed on the push roller fixed shaft 1, and the push roller 1 is arranged in the impurity removal box body, and the push roller fixed shaft 1 is installed with a sprocket wheel 5, and the sprocket wheel 5 is connected to the sprocket wheel 6 through a chain, and the sprocket wheel 6 is fixed to the push roller fixed shaft 2, and the push roller fixed shaft 2 is inserted on the side wall of the impurity removal box body, and the push roller fixed shaft 2 is fixed with a push roller 2, and the push roller 2 is arranged in the impurity removal box body, and the push roller fixed shaft 1 and the push roller fixed shaft 2 are both installed with bearing seats, and the bearing seats are fixed to the side wall of the impurity removal box body on; a screen is arranged below the push roller one and the push roller two, and the screen is fixed on the side wall of the impurity removal box; a sprocket three is fixed on the push roller fixed shaft one, and the sprocket three is connected to the sprocket four through a chain, and the sprocket four is fixed on the camshaft one, and the camshaft one is inserted on the side wall of the impurity removal box, and a bevel gear one is installed on the camshaft one, and the bevel gear one is meshed with the bevel gear two, and the bevel gear two is fixed on the transmission shaft, and the transmission shaft is installed with a bearing seat, and the bearing seat is fixed on the wall of the transmission box; a sprocket nine and a sprocket eleven are installed on the transmission shaft, and the sprocket nine is connected to the sprocket ten through a chain, and the sprocket ten is fixed on the half-gear shaft one, and the half-gear shaft one is installed with a bearing seat, and the bearing seat is fixed on the wall of the transmission box, and the half-gear shaft one is also fixed with a half-gear one;The sprocket 11 is connected to the sprocket 12 through a chain, the sprocket 12 is fixed on the semi-gear shaft 2, the semi-gear shaft 2 is equipped with a bearing seat, the bearing seat is fixed on the wall of the transmission box body, and the semi-gear shaft 2 is also fixed on the semi-gear shaft 2; a feeding box is arranged below the impurity removal box body and the crushing box body, the feeding box is fixed on the ground, a feeding push block is slidably installed in the feeding box, a rack 1 is fixed to one end of the feeding push block, the rack 1 is meshed with the semi-gear 1, and a tension spring is connected between one end of the feeding push block fixing the rack 1 and the side wall of the feeding box, A limit block is provided on one side of the tension spring of the feed push block, and the limit block is fixed on the side wall of the feed box; the top of the feed box is connected to the crushing box body through the crushing box outlet; a gate is inserted into the end of the feed box away from the tension spring, and the gate is slidably installed in the gate installation sleeve, and the gate installation sleeve is installed in the transmission box body, and a return spring is provided between the side wall of the gate installation sleeve and the gate; a rack 2 is fixed on the gate, and the rack 2 is meshed with a half gear 2; the feed box on the side of the gate away from the feed push block is connected to the biogas tank through a feeding pipe. ;

[0006] Furthermore, a cam 1 is fixed on the camshaft 1, and the cam 1 is arranged in the impurity removal box; a sprocket 7 is also installed on the push roller fixed shaft 2, and the sprocket 7 is connected to the sprocket 8 through a chain, and the sprocket 8 is fixed on the camshaft 2, and the camshaft 2 is inserted on the side wall of the impurity removal box; a cam 2 is fixed on the camshaft 2, and the cam 2 is arranged in the impurity removal box; bearing seats are installed on both the camshaft 1 and the camshaft 2, and the bearing seats are fixed on the side wall of the impurity removal box, wherein the cam 1 and the cam 2 are in contact with the bottom end of the screen.

[0007] Furthermore, an impurity collection box is provided below the outlet of the impurity removal box, and the impurity collection box is placed on a collection box support frame.

[0008] The beneficial effects of the present invention are: when feeding the biogas tank, leakage of biogas is avoided; the demand for continuous biogas production is guaranteed, and the environment is protected at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of a device for adding material to a biogas tank according to the present invention;

[0010] Figure 2 It is a schematic diagram of the local structure of the present invention Figure 1 ;

[0011] Figure 3 yes Figure 2 A partial enlarged view of point A;

[0012] Figure 4 It is a schematic diagram of the local structure of the present invention Figure 2 ;

[0013] Figure 5It is a schematic diagram of the local structure of the present invention Figure 3 ;

[0014] Figure 6 This is a schematic diagram of the rotation process of half gear one and half gear two Figure 1 ;

[0015] Figure 7 This is a schematic diagram of the rotation process of half gear one and half gear two Figure 2 ;

[0016] Figure 8 This is a schematic diagram of the rotation process of half gear one and half gear two Figure 3 ;

[0017] In the figure, 1, impurity removal box; 2, feeding port; 3, transmission box; 4, reduction motor; 5, motor mounting frame; 6, crushing box; 7, transmission gear 1; 8, transmission gear 2; 9, crushing roller fixed shaft 1; 10, connecting gear 1; 11, connecting gear 2; 12, crushing roller fixed shaft 2; 13, crushing roller; 14, crushing box discharge port; 15, small gear; 16, large gear; 17, large gear mounting shaft; 18, mounting shaft seat; 19, sprocket 1; 20, sprocket 2; 21, push roller fixed shaft 1; 22, push roller fixed shaft 2; 23, push roller 1; 24, push roller 2; 25, sprocket 3; 26, sprocket 4; 27, crushing box feed port; 28, camshaft 1; 30, cam 1; 31, cam 2; 32, cam 3; 33, cam 4; 34, cam 5; 35, cam 6; 36, cam 7; 37, cam 8; 38, cam 9; 39, cam 10; 40, cam 11; 41, cam 12; 42, cam 13; 43, cam 14; 44, cam 15; 45, cam 16; 46, cam 17; 47, cam 18; 48, cam 19; 49, cam 20; 40, cam 21; 41, cam 22; 42, cam 23; 43, cam 24; 44, cam 25; 45, cam 36; 47, 1. Sprocket five; 32. Sprocket six; 33. Sprocket seven; 34. Sprocket eight; 35. Camshaft two; 36. Cam two; 37. Screen; 38. Impurity removal box outlet; 39. Impurity collection box; 40. Collection box support frame; 41. Bevel gear one; 42. Bevel gear two; 43. Transmission shaft; 44. Sprocket nine; 45. Sprocket ten; 46. Half gear shaft one; 47. Half gear one; 48. Sprocket eleven; 49. Sprocket twelve; 50. Half gear shaft two; 51. Half gear two; 52. Feed box; 53. Feed push block; 54. Tension spring; 55. Rack one; 56. Limit block; 57. Gate; 58. Gate mounting sleeve; 59. Return spring; 60. Rack two; 61. Feeding pipe; 62. Biogas tank. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-8As shown, a device for feeding a biogas tank comprises an impurity removal box 1, a feeding port 2 is provided at the top of the impurity removal box 1, an impurity removal box outlet 38 is provided at the bottom of the impurity removal box 1, an impurity collection box 39 is provided below the impurity removal box outlet 38, the impurity collection box 39 is placed on a collection box support frame 40, the impurity removal box 1 is fixed on a transmission box 3, the transmission box 3 is fixed on the ground, a crushing box 6 is also fixed on the transmission box 3, and the side wall of the crushing box 6 is connected to the impurity removal box 1 through the crushing box feed port 27; a motor mounting frame 5 is provided on the ground on one side of the transmission box 3, a reduction motor 4 is installed on the top of the motor mounting frame 5, and the output shaft of the reduction motor 4 A transmission gear 17 is connected through the side wall of the transmission box body 3, and the transmission gear 17 is meshed with a transmission gear 28. The transmission gear 28 is fixed on a crushing roller fixed shaft 19, and the crushing roller fixed shaft 9 is inserted on the side walls of the transmission box body 3 and the crushing box body 6; a connecting gear 10 is installed on the crushing roller fixed shaft 9, and the connecting gear 10 is meshed with a connecting gear 21, and the connecting gear 211 is fixed on the crushing roller fixed shaft 212, and the crushing roller fixed shaft 212 is inserted on the side wall of the crushing box body 6, and a crushing roller 13 is fixed on both the crushing roller fixed shaft 19 and the crushing roller fixed shaft 212, and the crushing roller 13 is arranged in the crushing box body 6, wherein the crushing roller fixed shaft 19 and the crushing roller fixed shaft 212 are installed with bearing seats, and the shaft The bearing is fixed on the side wall of the crushing box body 6; a small gear 15 is also installed on the crushing roller fixed shaft 9, and the small gear 15 is meshed with a large gear 16, and the large gear 16 is fixed on the large gear mounting shaft 17, and a bearing is installed on one end of the large gear mounting shaft 17, and the outer ring of the bearing is fixed on the side wall of the transmission box body 3, and the other end of the large gear mounting shaft 17 is installed on the mounting shaft seat 18, and the bottom end of the mounting shaft seat 18 is fixed to the inner bottom wall of the transmission box body 3 through a connecting rod; a sprocket 19 is installed on the large gear mounting shaft 17, and the sprocket 19 is connected to the sprocket 20 through a chain, and the sprocket 20 is fixed on the push roller fixed shaft 21, and the push roller fixed shaft 21 is inserted on the side wall of the impurity removal box body 1, and the push roller fixed shaft 1 A push roller 23 is fixed on the push roller 21, and the push roller 23 is arranged in the impurity removal box 1. A sprocket 5 31 is installed on the push roller fixed shaft 21, and the sprocket 5 31 is connected to the sprocket 6 32 through a chain. The sprocket 6 32 is fixed on the push roller fixed shaft 22, and the push roller fixed shaft 22 is inserted on the side wall of the impurity removal box 1. A push roller 24 is fixed on the push roller fixed shaft 22, and the push roller 24 is arranged in the impurity removal box 1. The push roller fixed shaft 21 and the push roller fixed shaft 22 are both equipped with bearing seats, and the bearing seats are fixed on the side wall of the impurity removal box 1; a screen 37 is arranged below the push roller 23 and the push roller 24, and the screen 37 is fixed on the side wall of the impurity removal box 1;A sprocket wheel 3 25 is fixed on the push roller fixed shaft 1 21, and the sprocket wheel 3 25 is connected to a sprocket wheel 4 26 through a chain. The sprocket wheel 4 26 is fixed on a camshaft 1 28, and the camshaft 1 28 is inserted on the side wall of the impurity removal box 1. A bevel gear 1 41 is installed on the camshaft 1 28, and the bevel gear 1 41 is meshed with a bevel gear 2 42. The bevel gear 2 42 is fixed on a transmission shaft 43, and a bearing seat is installed on the transmission shaft 43, and the bearing seat is fixed on the wall of the transmission box 3; a sprocket wheel 9 44 and a sprocket wheel 11 4 are installed on the transmission shaft 43. 8. Sprocket wheel nine 44 is connected to sprocket wheel ten 45 through a chain, sprocket wheel ten 45 is fixed on half gear shaft one 46, half gear shaft one 46 is equipped with a bearing seat, the bearing seat is fixed on the wall of transmission case 3, half gear shaft one 47 is also fixed on half gear shaft one 46; sprocket wheel eleven 48 is connected to sprocket wheel twelve 49 through a chain, sprocket wheel twelve 49 is fixed on half gear shaft two 50, half gear shaft two 50 is equipped with a bearing seat, the bearing seat is fixed on the wall of transmission case 3, half gear shaft two 51 is also fixed on half gear shaft two 50; A feeding box 52 is provided below the impurity removal box 1 and the crushing box 6. The feeding box 52 is fixed on the ground. A feeding push block 53 is slidably installed in the feeding box 52. A rack 55 is fixed to one end of the feeding push block 53. The rack 55 is meshed with the half gear 47. A tension spring 54 is connected between one end of the feeding push block 53 fixing the rack 55 and the side wall of the feeding box 52. A limit block 56 is provided on one side of the feeding push block 53 fixing the tension spring 54. The limit block 56 is fixed to the side wall of the feeding box 52. The feeding box 52 The top of the feed box 52 is connected to the crushing box body 6 through the crushing box discharge port 14; a gate plate 57 is inserted at the end of the feed box 52 away from the tension spring 54, and the gate plate 57 is slidably installed in the gate plate installation sleeve 58, and the gate plate installation sleeve 58 is installed in the transmission box body 3. A return spring 59 is arranged between the side wall of the gate plate installation sleeve 58 and the gate plate 57; a rack 2 60 is fixed on the gate plate 57, and the rack 2 60 is meshed with the half gear 2 51; the feed box 52 on the side of the gate plate 57 away from the feeding push block 53 is connected to the biogas tank 62 through the feeding pipe 61. ;

[0019] A cam 30 is fixed on the camshaft 28, and the cam 30 is arranged in the impurity removal box 1; a sprocket 7 33 is also installed on the push roller fixed shaft 22, and the sprocket 7 33 is connected to the sprocket 8 34 through a chain, and the sprocket 8 34 is fixed on the camshaft 2 35, and the camshaft 2 35 is inserted on the side wall of the impurity removal box 1, and a cam 2 36 is fixed on the camshaft 2 35, and the cam 2 36 is arranged in the impurity removal box 1; bearing seats are installed on the camshaft 28 and the camshaft 2 35, and the bearing seats are fixed on the side wall of the impurity removal box 1, wherein the cam 30 and the cam 2 36 are in contact with the bottom end of the screen 37; the cam 30 and the cam 2 36 make the screen 37 vibrate, so that impurities such as soil can be better separated through the screen 37.

[0020] In this embodiment, when it is necessary to add material to the biogas tank 62, the reduction motor 4 is first started, the reduction motor 4 will drive the transmission gear 1 7 to rotate, the transmission gear 1 7 will drive the transmission gear 2 8 to rotate, the transmission gear 2 8 will drive the crushing roller fixed shaft 1 9 to rotate, the crushing roller fixed shaft 1 9 will drive the connecting gear 1 10 and the pinion 15 to rotate, the connecting gear 1 10 will drive the connecting gear 2 11 to rotate, the connecting gear 2 11 will drive the crushing roller fixed shaft 2 12 to rotate, the crushing roller fixed shaft 1 9 and the crushing roller fixed shaft 2 12 will drive the crushing roller 13 to rotate; At the same time, the small gear 15 will drive the large gear 16 to rotate, the large gear 16 will drive the large gear installation shaft 17 to rotate, the large gear installation shaft 17 will drive the sprocket 1 19 to rotate, the sprocket 1 19 will drive the sprocket 2 20 to rotate through the chain, the sprocket 2 20 will drive the push roller fixed shaft 1 21 to rotate, the push roller fixed shaft 1 21 will drive the push roller 1 23, the sprocket 3 25 and the sprocket 5 31 to rotate; the sprocket 5 31 will drive the sprocket 6 32 to rotate through the chain, the sprocket 6 32 will drive the push roller fixed shaft 2 22 to rotate, the push roller fixed shaft 2 22 will drive the push roller 2 24 and sprocket seven 33 rotates, sprocket seven 33 will drive sprocket eight 34 to rotate through the chain, sprocket eight 34 will drive camshaft two 35 to rotate, camshaft two 35 will drive cam two 36 to rotate; at the same time, sprocket three 25 will drive sprocket four 26 to rotate through the chain, sprocket four 26 will drive camshaft one 28 to rotate, camshaft one 28 will drive cam one 30 and bevel gear one 41 to rotate, bevel gear one 41 will drive bevel gear two 42 to rotate, bevel gear two 42 will drive transmission shaft 43 to rotate, transmission shaft 43 will drive sprocket nine 44 and sprocket eleven 48 to rotate, Sprocket nine 44 will drive sprocket ten 45 to rotate through the chain, sprocket ten 45 will drive half gear shaft one 46 to rotate, half gear shaft one 46 will drive half gear one 47 to rotate, half gear one 47 will drive rack one 55 to move, rack one 55 will drive feeding push block 53 to move; at the same time, sprocket eleven 48 will drive sprocket twelve 49 to rotate through the chain, sprocket twelve 49 will drive half gear shaft two 50 to rotate, half gear shaft two 50 will drive half gear two 51 to rotate, half gear two 51 will drive rack two 60 to move, and rack two 60 will drive gate 57 to move.

[0021] Raw materials are added to the biogas tank 62 through the feeding port 2, and the raw materials will fall onto the screen 37, and then enter the pulverizing box body 6 through the pulverizing box feed port 27 under the action of the push roller 24 and the push roller 1 23; the rotating cam 1 30 and the cam 2 36 will continuously vibrate the screen 37, so that the solid small particles and impurities such as soil in the raw materials on the screen 37 will pass through the screen 37 and fall into the impurity collection box 39 below the impurity removal box outlet 38; the raw materials entering the pulverizing box body 6 will be crushed by the pulverizing roller 13, and then enter the feeding box 52 through the pulverizing box outlet 14.

[0022] For the convenience of description, it is assumed that at the beginning, the feeding push block 53 is in Figure 6 In the position shown, the gate 57 is closed and the biogas tank 62 does not leak; at this time, the half gear 1 47 and the half gear 2 51 will rotate synchronously, the half gear 1 47 will drive the rack 1 55 to move, and the rack 1 55 will drive the feeding push block 53 to move in the direction close to the gate 57. At this time, the feeding push block 53 will push the raw materials entering the feeding box 52 from the crushing box outlet 14, so that the raw materials move in the direction close to the gate 57; when the half gear 1 47 and the half gear 2 51 rotate to the position shown in the figure, the gate 57 is closed and the biogas tank 62 does not leak; at this time, the half gear 1 47 and the half gear 2 51 rotate synchronously, and the half gear 1 47 drives the rack 1 55 to move, and the rack 1 55 drives the feeding push block 53 to move in the direction close to the gate 57. Figure 7 When the semi-gear 1 47 and the semi-gear 2 51 are rotated to the position shown in FIG. 1 , the semi-gear 2 51 will just drive the rack 2 60 to move, and the rack 2 60 will drive the gate 57 to open. At this time, the feeding push block 53 has blocked the crushing box outlet 14, and the biogas tank 62 does not leak. Figure 8 When the gate 57 is in the position shown, the feed push block 53 is opened, and the feed push block 53 feeds the raw material into the biogas tank 62 through the feed pipe 61. At this time, the biogas tank 62 does not leak. The half gear 1 47 and the half gear 2 51 will continue to rotate. When the half gear 1 47 and the half gear 2 51 are no longer engaged with the rack 1 55 and the rack 2 60, the feed push block 53 will be reset under the action of the tension spring 54, and the gate 57 will also be reset under the elastic force of the reset spring 59. At this time, the feed push block 53 and the gate 57 will return to the Figure 6 In the position shown, the raw material will continue to enter the feeding box 52 from the crushing box outlet 14; at this time, the biogas tank 62 can be continuously charged. The biogas tank 62 will not leak during the entire charging process.

Claims

1. A device for feeding a biogas tank, characterized in that: The invention comprises an impurity removal box (1), wherein a feeding port (2) is provided at the top of the impurity removal box (1), an impurity removal box outlet (38) is provided at the bottom of the impurity removal box (1), the impurity removal box (1) is fixed on a transmission box (3), the transmission box (3) is fixed on the ground, a crushing box (6) is also fixed on the transmission box (3), and a side wall of the crushing box (6) is connected to the impurity removal box (1) through a crushing box feed port (27); and a ground on one side of the transmission box (3) is provided. A motor mounting frame (5) is provided, a reduction motor (4) is mounted on the top of the motor mounting frame (5), an output shaft of the reduction motor (4) passes through the side wall of the transmission housing (3) and is connected to a transmission gear 1 (7), the transmission gear 1 (7) is meshed with a transmission gear 2 (8), the transmission gear 2 (8) is fixed on a crushing roller fixed shaft 1 (9), the crushing roller fixed shaft 1 (9) is inserted on the side walls of the transmission housing (3) and the crushing housing (6); a connecting gear 1 (10) is mounted on the crushing roller fixed shaft 1 (9) The connecting gear 1 (10) is meshed with the connecting gear 2 (11), the connecting gear 2 (11) is fixed on the crushing roller fixed shaft 2 (12), the crushing roller fixed shaft 2 (12) is inserted on the side wall of the crushing box (6), the crushing roller fixed shaft 1 (9) and the crushing roller fixed shaft 2 (12) are both fixed with a crushing roller (13), the crushing roller (13) is arranged in the crushing box (6), wherein the crushing roller fixed shaft 1 (9) and the crushing roller fixed shaft 2 (12) are both installed with a bearing seat, and the bearing seat is fixed to the crushing box The crushing roller fixing shaft (9) is also provided with a small gear (15), the small gear (15) is meshed with a large gear (16), the large gear (16) is fixed on a large gear fixing shaft (17), one end of the large gear fixing shaft (17) is provided with a bearing, the outer ring of the bearing is fixed on the side wall of the transmission housing (3), the other end of the large gear fixing shaft (17) is installed on a fixing shaft seat (18), and the bottom end of the fixing shaft seat (18) is fixed to the inner bottom wall of the transmission housing (3) through a connecting rod;The large gear mounting shaft (17) is mounted with a sprocket wheel 1 (19), the sprocket wheel 1 (19) is connected to a sprocket wheel 2 (20) via a chain, the sprocket wheel 2 (20) is fixed to a push roller fixed shaft (21), the push roller fixed shaft (21) is inserted into the side wall of the impurity removal box (1), a push roller 1 (23) is fixed to the push roller fixed shaft (21), the push roller 1 (23) is arranged in the impurity removal box (1), a sprocket wheel 5 (31) is mounted on the push roller fixed shaft (21), the sprocket wheel 5 (31) is connected to a sprocket wheel 6 (32) via a chain, the sprocket wheel 6 (32) is fixed to the push roller fixed shaft (21), and the push roller 1 (23) is arranged in the impurity removal box (1). The push roller fixed shaft (22) is inserted on the side wall of the impurity removal box (1), the push roller fixed shaft (22) is fixed with a push roller (24), the push roller (24) is arranged in the impurity removal box (1), the push roller fixed shaft (21) and the push roller fixed shaft (22) are both equipped with bearing seats, and the bearing seats are fixed on the side wall of the impurity removal box (1); a screen (37) is arranged below the push roller (23) and the push roller (24), and the screen (37) is fixed on the side wall of the impurity removal box (1); the push roller fixed shaft (21) is fixed with a push roller (24), and the push roller fixed shaft (21) is fixed with a push roller (24). A sprocket wheel three (25) is fixed thereto, the sprocket wheel three (25) is connected to a sprocket wheel four (26) via a chain, the sprocket wheel four (26) is fixed to a camshaft one (28), the camshaft one (28) is inserted into the side wall of the impurity removal box (1), a bevel gear one (41) is installed on the camshaft one (28), the bevel gear one (41) is meshed with a bevel gear two (42), the bevel gear two (42) is fixed to a transmission shaft (43), a bearing seat is installed on the transmission shaft (43), and the bearing seat is fixed to the wall of the transmission box (3); a sprocket wheel nine (44) and a sprocket wheel eleven (48) are installed on the transmission shaft (43), and the sprocket wheel The sprocket wheel nine (44) is connected to the sprocket wheel ten (45) through a chain, the sprocket wheel ten (45) is fixed on the half gear shaft one (46), a bearing seat is installed on the half gear shaft one (46), the bearing seat is fixed on the wall of the transmission box body (3), and the half gear shaft one (47) is also fixed on the half gear shaft one (46); the sprocket wheel eleven (48) is connected to the sprocket wheel twelve (49) through a chain, the sprocket wheel twelve (49) is fixed on the half gear shaft two (50), a bearing seat is installed on the half gear shaft two (50), the bearing seat is fixed on the wall of the transmission box body (3), and the half gear shaft two (51) is also fixed on the half gear shaft two (50);A feeding box (52) is arranged below the impurity removal box (1) and the crushing box (6), the feeding box (52) being fixed on the ground, a feeding push block (53) being slidably installed in the feeding box (52), a rack (55) being fixed at one end of the feeding push block (53), the rack (55) being meshed with a half gear (47), a tension spring (54) being connected between one end of the feeding push block (53) fixing the rack (55) and the side wall of the feeding box (52), a limit block (56) being arranged on one side of the feeding push block (53) fixing the tension spring (54), the limit block (56) being fixed on the side wall of the feeding box (52); the top of the feeding box (52) is provided with a plurality of teeth. The end of the feed box (52) is connected to the crushing box body (6) through the crushing box discharge port (14); a gate plate (57) is inserted into the end of the feed box (52) away from the tension spring (54), the gate plate (57) is slidably mounted in the gate plate mounting sleeve (58), the gate plate mounting sleeve (58) is mounted in the transmission box body (3), and a return spring (59) is arranged between the side wall of the gate plate mounting sleeve (58) and the gate plate (57); a second rack (60) is fixed on the gate plate (57), and the second rack (60) is meshed with the second half gear (51); the feed box (52) on the side of the gate plate (57) away from the feed push block (53) is connected to the biogas tank (62) through the feeding pipe (61); The cam shaft one (28) is fixed with a cam one (30), and the cam one (30) is arranged in the impurity removal box (1); the push roller fixed shaft two (22) is also installed with a sprocket seven (33), the sprocket seven (33) is connected to a sprocket eight (34) through a chain, the sprocket eight (34) is fixed to the cam shaft two (35), the cam shaft two (35) is inserted on the side wall of the impurity removal box (1), the cam shaft two (35) is fixed with a cam two (36), and the cam two (36) is arranged in the impurity removal box (1); the cam shaft one (28) and the cam shaft two (35) are both installed with bearing seats, and the bearing seats are fixed on the side wall of the impurity removal box (1), wherein the cam one (30) and the cam two (36) are in contact with the bottom end of the screen (37); An impurity collection box (39) is provided below the impurity removal box outlet (38), and the impurity collection box (39) is placed on a collection box support frame (40).

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