Environment-friendly coal crushing and conveying device

Abstract

The invention discloses an environment-friendly coal crushing and conveying device, and particularly relates to the field of coal crushing equipment, the environment-friendly coal crushing and conveying device comprises a crushing box, a feeding hopper is fixedly mounted at the top of the crushing box, a crushing roller machine is arranged on the inner wall of the feeding hopper, a conveying belt is arranged at the bottom of the crushing roller machine, and a hopper receiving buffer mechanism is arranged at the bottom of the feeding hopper; the material receiving box capable of reciprocating up and down is arranged at the bottom of the crushing equipment, falling coal is received through the material receiving box and is buffered and released to the conveying belt, and the situation that a large amount of dust is raised due to the fact that the coal is directly scattered on the conveying belt is avoided; and meanwhile, a structure capable of stirring the coal and collecting dust is further arranged on the conveying belt, and dust is collected, so that the coal conveyed through the conveying belt is prevented from influencing the external environment after being conveyed out.

Description

Technical Field

[0001] The present invention relates to the technical field of coal crushing equipment, and more specifically, to an environmentally friendly coal crushing and conveying device. Background Art

[0002] Coal is mainly composed of elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus. The sum of carbon, hydrogen and oxygen accounts for more than 95% of organic matter. Coal is an important raw material for metallurgy and chemical industry. There are lignite, bituminous coal, anthracite, semi-anthracite and other categories. Coal is a non-renewable resource. After it is mined, it needs to be crushed by coal crusher. Coal crusher is referred to as coal crusher. It is one of the commonly used equipment in crushing coal and crushing coal gangue production line.

[0003] Chinese utility model patent CN209222346U discloses a coal crusher, which has a discharge port at the bottom right of the crushing chamber and a conveyor belt on the top of the feeding plate. The crushed coal fragments are discharged to the upper surface of the conveyor belt through the discharge port. The motor drives the roller inside the transmission shaft to rotate, and the conveying tool is placed on the left side of the conveyor belt in advance. The two sets of rollers drive the fragments on the conveyor belt to be conveyed to the conveying tool, so as to prevent the crushing efficiency of the crusher from being too fast and the manual transportation efficiency from being low, resulting in blockage of the discharge port, affecting the crushing efficiency and increasing the work intensity of the staff;

[0004] However, although the above-mentioned patent document has the function of crushing coal, the coal is directly thrown onto the conveyor belt after crushing without any protective measures or buffer structures. As a result, when the crushed coal is scattered on the conveyor belt, a large amount of dust is raised due to the impact, resulting in a large amount of dust in the crushing equipment being dissipated into the environment and causing pollution. At the same time, there is also a lack of a structure for dust removal for the crushed coal on the conveyor belt, which results in a large amount of dust in the coal transported by the conveyor belt, which will still affect the external environment after being delivered.

[0005] In view of the above technical defects, a solution is now provided. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an environmentally friendly coal crushing and conveying device, which is achieved by setting a receiving bucket buffer mechanism, and setting a receiving box that can reciprocate up and down at the bottom of the crushing equipment. The receiving box receives the fallen coal and releases it onto the conveyor belt through buffering, so as to avoid the coal being directly scattered on the conveyor belt and raising a large amount of dust. At the same time, a sweeping and suction mechanism and a dust collecting mechanism are provided to cooperate, and a structure that can move the coal and perform dust suction is provided on the conveyor belt. Then, the dust is collected and processed, so as to avoid the coal transported by the conveyor belt affecting the external environment after being sent out, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly coal crushing and conveying device, comprising a crushing box, a charging hopper is fixedly installed on the top of the crushing box, a crushing roller is arranged on the inner wall of the charging hopper, a conveyor belt is arranged at the bottom of the crushing roller, and a receiving bucket buffer mechanism is arranged at the bottom of the charging hopper;

[0008] The receiving bucket buffer mechanism includes a feeding frame connected to the bottom of the feeding hopper, the feeding frame is arranged vertically downward, a feeding box is arranged on the bottom inner wall of the feeding frame, the outer wall of the feeding box is fitted with the inner wall of the feeding frame, a limiting frame is arranged at the bottom of the feeding box, the limiting frame is fixedly mounted on the bottom inner wall of the feeding frame, the top of the limiting frame is fitted with the bottom of the feeding box, a baffle plate is rotatably installed on the bottom of the feeding box, the baffle plate is arranged in a horizontal state, the area of ​​the baffle plate is smaller than the inner wall area of ​​the limiting frame, the outer wall of the baffle plate is fitted with the inner wall of the feeding box.

[0009] In a preferred embodiment, rotating blocks are fixedly installed on both sides of the bottom of the baffle plate, and the two rotating blocks are symmetrically arranged. The outer walls of the two rotating blocks are sleeved with a push-pull frame, and a connecting frame is commonly fixedly installed on one side of the two push-pull frames. A reciprocating threaded rod is threadedly connected to one side of the connecting frame. The reciprocating threaded rod is arranged in a vertical state, and a reduction motor is provided on the top of the reciprocating threaded rod, and the reduction motor is fixedly installed on the outer wall of the feeding hopper.

[0010] In a preferred embodiment, push plates are provided on both sides of the top of the material receiving box, the two push plates are arranged obliquely downward, the two push plates are arranged symmetrically with each other, the bottoms of the two push plates are arranged corresponding to the tops of the two sides of the material receiving box, one side of the two push plates is respectively provided with a material receiving plate, the two material receiving plates are slidably installed on the inner wall of the feeding hopper, the two material receiving plates are arranged symmetrically with each other, one side of the two material receiving plates is fitted with each other, and a plurality of limit springs are fixedly installed on the outer walls of the two material receiving plates, and the plurality of limit springs are fixedly installed on the inner wall of the feeding hopper.

[0011] In a preferred embodiment, a dust sweeping mechanism and a dust collecting mechanism are provided on the top of the conveyor belt;

[0012] The sweeping and dust collection mechanism includes a dust collection bin fixedly mounted on the inner wall of the crushing box, the dust collection bin is located on the top of the conveyor belt, the dust collection bin is arranged in a vertical state, one side of the dust collection bin is connected to a negative pressure fan, and a sweeping frame is slidably mounted on the other side of the dust collection bin, the sweeping frame is arranged in a horizontal state, and the bottom of the sweeping frame is in contact with the top of the conveyor belt.

[0013] In a preferred embodiment, the two sides of the sweeping frame are respectively fixedly installed with connecting rods, and the bottoms of the two connecting rods are commonly provided with a rotating rod, which is rotatably installed on the inner wall of the crushing box, and the outer wall of the rotating rod is provided with two reciprocating thread grooves, and the two connecting rods are respectively threadedly connected to the two reciprocating thread grooves.

[0014] In a preferred embodiment, first pulleys are fixedly installed on the outer walls of both sides of the rotating rod, synchronous belts are rotatably installed on the outer walls of the two first pulleys, second pulleys are rotatably installed on one side of the two synchronous belts, and the two second pulleys are fixedly installed on the outer walls of the conveyor belt.

[0015] In a preferred embodiment, the dust collecting mechanism includes a dust-proof cloth fixedly mounted on the inner wall of the dust collection bin, the dust-proof cloth is located between the dust collection bin and the negative pressure fan, and a folding plate is fixedly mounted on the inner wall of the dust collection bin, and the folding plate is arranged to be inclined upward.

[0016] In a preferred embodiment, a dust box is provided on one side of the folding plate, the outer wall of the dust box is in contact with the inner wall of the dust collection bin, a plurality of scrapers are fixedly installed on the top of the dust box, the outer walls of the plurality of scrapers are in contact with the dust-proof cloth, the dust box passes through the outer walls of the dust collection bin and the crushing box, a rubber plate is fixedly installed on the outer wall of the dust box, a handle is fixedly installed on one side of the rubber plate, and the handle extends out of the outer wall of the crushing box.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention is to set a receiving bucket buffer mechanism, and set a receiving box that can reciprocate up and down at the bottom of the crushing equipment. The receiving box receives the fallen coal and releases it to the conveyor belt through buffering, so as to avoid the coal being directly scattered on the conveyor belt and raising a large amount of dust.

[0019] 2. At the same time, by setting up a sweeping dust suction mechanism and a dust collecting mechanism in coordination, a structure that can move the coal and suction dust is set on the conveyor belt, and then the dust is collected and processed to prevent the coal transported by the conveyor belt from affecting the external environment after being sent out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is an internal front view of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the bucket buffer mechanism in the present invention.

[0023] Figure 4 It is a vertical cross-sectional view of the bucket buffer mechanism in the present invention.

[0024] Figure 5 It is a structural schematic diagram of the sweeping and dust collection mechanism in the present invention.

[0025] Figure 6 It is a partial cross-sectional view of the sweeping and dust collecting mechanism of the present invention.

[0026] Figure 7 It is an internal front view of the dust sweeping and collecting mechanism of the present invention.

[0027] Figure 8 It is a partial cross-sectional view of the dust sweeping and collecting mechanism of the present invention.

[0028] The accompanying drawings are marked as follows: 1. Crushing box; 2. Feeding hopper; 3. Crushing roller; 4. Conveyor belt; 5. Bucket receiving buffer mechanism; 51. Unloading frame; 52. Receiving box; 53. Limiting frame; 54. Blocking plate; 55. Rotating block; 56. Push-pull frame; 57. Connecting frame; 58. Reciprocating threaded rod; 59. Reducer motor; 510. Push plate; 511. Receiving plate; 512. Limiting spring; 6. Sweeping and dust collection mechanism; 61. Dust collection bin; 62. Negative pressure fan; 63. Sweeping frame; 64. Connecting support rod; 65. Reciprocating threaded groove; 66. Rotating rod; 67. First pulley; 68. Synchronous belt; 69. Second pulley; 7. Dust collecting mechanism; 71. Dust-proof cloth; 72. Folding plate; 73. Dust collecting box; 74. Scraper; 75. Rubber sheet; 76. Handle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1: Refer to the attached specification Figure 1-Figure 8 , an environmentally friendly coal crushing and conveying device, such as Figure 1 and Figure 2 As shown, it comprises a crushing box 1, a feeding hopper 2 is fixedly installed on the top of the crushing box 1, a crushing roller 3 is arranged on the inner wall of the feeding hopper 2, a conveyor belt 4 is arranged at the bottom of the crushing roller 3, and a receiving bucket buffer mechanism 5 is arranged at the bottom of the feeding hopper 2;

[0031] like Figure 3 and Figure 4As shown, the receiving bucket buffer mechanism 5 includes a feeding frame 51 connected to the bottom of the feeding hopper 2, the feeding frame 51 is vertically arranged downward, and a receiving box 52 is arranged on the inner wall of the bottom of the feeding frame 51, and the outer wall of the receiving box 52 fits with the inner wall of the feeding frame 51. The coal crushed by the crushing roller 3 in the feeding hopper 2 falls into the feeding frame 51, and the receiving box 52 in the feeding frame 51 receives the coal;

[0032] A limit frame 53 is provided at the bottom of the receiving box 52, and the limit frame 53 is fixedly installed on the bottom inner wall of the unloading frame 51. The top of the limit frame 53 fits with the bottom of the receiving box 52, and a baffle plate 54 is rotatably installed at the bottom of the receiving box 52. The baffle plate 54 is arranged in a horizontal state, and the area of ​​the baffle plate 54 is smaller than the inner wall area of ​​the limit frame 53. The outer wall of the baffle plate 54 fits with the inner wall of the receiving box 52. When the receiving box 52 moves downward, the receiving box 52 is finally blocked by the limit frame 53 and stops, while the baffle plate 54 continues to move downward and passes over the limit frame 53 to open the bottom of the receiving box 52 to buffer the coal and send it to the conveyor belt 4.

[0033] like Figure 3 and Figure 4 As shown, rotating blocks 55 are fixedly installed on both sides of the bottom of the baffle plate 54, and the two rotating blocks 55 are symmetrically arranged. The outer walls of the two rotating blocks 55 are sleeved with push-pull frames 56, and a connecting frame 57 is fixedly installed on one side of the two push-pull frames 56. A reciprocating threaded rod 58 is threadedly connected to one side of the connecting frame 57. The reciprocating threaded rod 58 is arranged in a vertical state. A reduction motor 59 is provided on the top of the reciprocating threaded rod 58. The reduction motor 59 is fixedly installed on the outer wall of the feeding hopper 2. The reciprocating threaded rod 58 is driven by the reduction motor 59 to make the connecting frame 57 move back and forth up and down, that is, the connecting frame 57 drives the push-pull frame 56 so that the rotating block 55 pushes the baffle plate 54 to move synchronously.

[0034] like Figure 3 and Figure 4 As shown, push plates 510 are provided on both sides of the top of the material receiving box 52, the two push plates 510 are arranged tilted downward, the two push plates 510 are arranged symmetrically with each other, the bottoms of the two push plates 510 and the tops of both sides of the material receiving box 52 are arranged corresponding to each other, and one side of the two push plates 510 is respectively provided with a material receiving plate 511, the two material receiving plates 511 are slidably installed on the inner wall of the feeding hopper 2, the two material receiving plates 511 are arranged symmetrically with each other, and one side of the two material receiving plates 511 is in contact with each other;

[0035] A plurality of limit springs 512 are fixedly installed on the outer walls of the two receiving plates 511, and the plurality of limit springs 512 are fixedly installed on the inner wall of the feeding hopper 2. The receiving box 52 can move upward by pushing open the push plates 510 on both sides so that the push plates 510 on both sides drive the receiving plates 511 to move and compress the limit springs 512 to move away from each other and open, thereby allowing the coal caught on the two receiving plates 511 to fall into the receiving box 52.

[0036] In the specific implementation, the coal crushed by the crushing roller 3 in the feeding hopper 2 falls on the two receiving plates 511 supported by the limit springs 512, and then the reciprocating threaded rod 58 is driven by the reduction motor 59 to move the associated frame 57 upward to drive the push-pull frame 56, so that the rotating block 55 pushes the blocking plate 54 upward to drive it to move upward synchronously, and then the push plates 510 on both sides of the receiving box 52 are pushed open so that the push plates 510 on both sides drive the receiving plates 511 to move and compress the limit springs 512 to move away from each other and open, so that the coal caught on the two receiving plates 511 falls into the receiving box 52;

[0037] Finally, after the receiving box 52 moves downward, the two receiving plates 511 continue to merge, and the receiving box 52 that receives the coal moves downward to the limit frame 53 and is blocked and stops. At this time, the driven blocking plate 54 continues to move downward and passes over the limit frame 53 to open the bottom of the receiving box 52, thereby buffering the coal and sending it to the conveyor belt 4, avoiding the situation where the coal is directly scattered on the conveyor belt 4 and raises a large amount of dust.

[0038] Embodiment 2: Figure 5 and Figure 6 As shown, a sweeping dust suction mechanism 6 and a dust collecting mechanism 7 are provided on the top of the conveyor belt 4. The sweeping dust suction mechanism 6 includes a dust suction bin 61 fixedly mounted on the inner wall of the crushing box 1. The dust suction bin 61 is located on the top of the conveyor belt 4. The dust suction bin 61 is arranged in a vertical state. One side of the dust suction bin 61 is connected to a negative pressure fan 62. A sweeping frame 63 is slidably installed on the other side of the dust suction bin 61. The sweeping frame 63 is arranged in a horizontal state. The bottom of the sweeping frame 63 is in contact with the top of the conveyor belt 4. When the negative pressure fan 62 is started, negative pressure is generated in the dust suction bin 61 to absorb the dust in the coal on the conveyor belt 4.

[0039] like Figure 5 and Figure 6 As shown, the two sides of the sweeping frame 63 are respectively fixedly installed with associated support rods 64, and the bottoms of the two associated support rods 64 are commonly provided with a rotating rod 66, which is rotatably installed on the inner wall of the crushing box 1, and the outer wall of the rotating rod 66 is provided with two reciprocating thread grooves 65, and the two associated support rods 64 are respectively threadedly connected with the two reciprocating thread grooves 65. The rotation of the rotating rod 66 drives the two reciprocating thread grooves 65 so that the two associated support rods 64 drive the sweeping frame 63 to perform synchronous reciprocating left and right movements, that is, the sweeping frame 63 sweeps the coal on the conveyor belt 4 to facilitate sweeping out the dust therein.

[0040] like Figure 5 and Figure 6As shown, first pulleys 67 are fixedly installed on the outer walls of both sides of the rotating rod 66, and synchronous belts 68 are rotatably installed on the outer walls of the two first pulleys 67. Second pulleys 69 are rotatably installed on one side of the two synchronous belts 68. The two second pulleys 69 are fixedly installed on the outer wall of the conveyor belt 4, and the two second pulleys 69 are driven to rotate by the operation and rotation of the conveyor belt 4, that is, the second pulley 69 drives the synchronous belt 68 to make the two first pulleys 67 rotate synchronously, and then the two first pulleys 67 drive the rotating rod 66 to rotate synchronously.

[0041] like Figure 7 and Figure 8 As shown, the dust collecting mechanism 7 includes a dust-proof cloth 71 fixedly installed on the inner wall of the dust collection bin 61, the dust-proof cloth 71 is located between the dust collection bin 61 and the negative pressure fan 62, and a folding plate 72 is fixedly installed on the inner wall of the dust collection bin 61, the folding plate 72 is arranged to be inclined upward, and the sucked dust can be blocked by the dust-proof cloth 71 and be in the folding plate 72.

[0042] like Figure 7 and Figure 8 As shown, a dust collecting box 73 is provided on one side of the folding plate 72, and the outer wall of the dust collecting box 73 fits with the inner wall of the dust collecting bin 61, and a plurality of scrapers 74 are fixedly installed on the top of the dust collecting box 73, and the outer walls of the plurality of scrapers 74 fit with the dust-proof cloth 71, and the dust collecting box 73 passes through the outer walls of the dust collecting bin 61 and the crushing box 1, and a rubber plate 75 is fixedly installed on the outer wall of the dust collecting box 73, and a handle 76 is fixedly installed on one side of the rubber plate 75, and the handle 76 extends out of the outer wall of the crushing box 1, and then after the work is completed, the handle 76 is pulled to make the dust collecting box 73 drive the plurality of scrapers 74 to move out synchronously, and the plurality of scrapers 74 scrape the dust on the dust-proof cloth 71 and collect it centrally.

[0043] In specific implementation, the two second pulleys 69 are driven to rotate by the running rotation of the conveyor belt 4, that is, the second pulley 69 drives the synchronous belt 68 to make the two first pulleys 67 rotate synchronously, and then the two first pulleys 67 drive the rotating rod 66 to rotate synchronously, and the rotating rod 66 rotates to drive the two reciprocating thread grooves 65 so that the two associated support rods 64 drive the sweeping frame 63 to perform synchronous reciprocating left and right movements, that is, the sweeping frame 63 sweeps the coal on the conveyor belt 4 to sweep out the dust therein, and at this time, the negative pressure fan 62 is started to generate negative pressure in the dust suction bin 61 to absorb the dust in the coal on the conveyor belt 4, and the dust-isolating cloth 71 is used to block the absorbed dust and place it in the folding plate 72;

[0044] After the work is completed, the dust collecting box 73 drives multiple scrapers 74 to move out synchronously by pulling the handle 76, and the multiple scrapers 74 scrape the dust on the dust-proof cloth 71 and collect it centrally, so as to prevent the coal transported by the conveyor belt from affecting the external environment after being sent out.

[0045] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0046] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0047] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly coal crushing and conveying device, comprising a crushing box (1), a feeding hopper (2) fixedly mounted on the top of the crushing box (1), a crushing roller (3) disposed on the inner wall of the feeding hopper (2), and a conveyor belt (4) disposed at the bottom of the crushing roller (3), characterized in that: The bottom of the feeding hopper (2) is provided with a hopper buffer mechanism (5); The receiving hopper buffer mechanism (5) comprises a material discharge frame (51) connected to the bottom of the feeding hopper (2), the material discharge frame (51) is arranged vertically downward, and a material receiving box (52) is arranged on the inner wall of the bottom of the material discharge frame (51), and the outer wall of the material receiving box (52) is in contact with the inner wall of the material discharge frame (51); A limiting frame (53) is provided at the bottom of the material receiving box (52), and the limiting frame (53) is fixedly mounted on the bottom inner wall of the material unloading frame (51). The top of the limiting frame (53) and the bottom of the material receiving box (52) are in contact with each other. A blocking plate (54) is rotatably mounted at the bottom of the material receiving box (52), and the blocking plate (54) is arranged in a horizontal state. The area of ​​the blocking plate (54) is smaller than the area of ​​the inner wall of the limiting frame (53), and the outer wall of the blocking plate (54) and the inner wall of the material receiving box (52) are in contact with each other.

2. The environmentally friendly coal crushing and conveying device according to claim 1 is characterized by: Rotating blocks (55) are fixedly installed on both sides of the bottom of the baffle plate (54), and the two rotating blocks (55) are symmetrically arranged. The outer walls of the two rotating blocks (55) are sleeved with a push-pull frame (56), and a connecting frame (57) is fixedly installed on one side of the two push-pull frames (56). A reciprocating threaded rod (58) is threadedly connected to one side of the connecting frame (57). The reciprocating threaded rod (58) is arranged in a vertical state. A reduction motor (59) is provided on the top of the reciprocating threaded rod (58), and the reduction motor (59) is fixedly installed on the outer wall of the feeding hopper (2).

3. The environmentally friendly coal crushing and conveying device according to claim 2 is characterized in that: Push plates (510) are provided on both sides of the top of the material receiving box (52). The two push plates (510) are arranged in an inclined downward manner. The two push plates (510) are arranged symmetrically with each other. The bottoms of the two push plates (510) are arranged corresponding to the tops of both sides of the material receiving box (52). One side of the two push plates (510) is respectively provided with a material receiving plate (511). The two material receiving plates (511) are slidably mounted on the inner wall of the feeding hopper (2). The two material receiving plates (511) are arranged symmetrically with each other. One side of the two material receiving plates (511) is fitted with each other. A plurality of limit springs (512) are fixedly mounted on the outer walls of the two material receiving plates (511). The plurality of limit springs (512) are fixedly mounted on the inner wall of the feeding hopper (2).

4. The environmentally friendly coal crushing and conveying device according to claim 1 is characterized in that: The top of the conveyor belt (4) is provided with a sweeping and dust collecting mechanism (6) and a dust collecting mechanism (7); The sweeping and dust collection mechanism (6) comprises a dust collection bin (61) fixedly mounted on the inner wall of the crushing box (1); the dust collection bin (61) is located on the top of the conveyor belt (4); the dust collection bin (61) is arranged in a vertical state; one side of the dust collection bin (61) is connected to a negative pressure fan (62); a sweeping and dust collection frame (63) is slidably mounted on the other side of the dust collection bin (61); the sweeping and dust collection frame (63) is arranged in a horizontal state; the bottom of the sweeping and dust collection frame (63) is in contact with the top of the conveyor belt (4).

5. The environmentally friendly coal crushing and conveying device according to claim 4 is characterized in that: The two sides of the sweeping frame (63) are respectively fixedly mounted with associated support rods (64), the bottoms of the two associated support rods (64) are commonly provided with a rotating rod (66), the rotating rod (66) is rotatably mounted on the inner wall of the crushing box (1), the outer wall of the rotating rod (66) is provided with two reciprocating thread grooves (65), and the two associated support rods (64) are respectively threadedly connected to the two reciprocating thread grooves (65).

6. The environmentally friendly coal crushing and conveying device according to claim 5 is characterized by: The outer walls of both sides of the rotating rod (66) are fixedly mounted with first pulleys (67), the outer walls of the two first pulleys (67) are rotatably mounted with synchronous belts (68), one side of the two synchronous belts (68) is rotatably mounted with second pulleys (69), and the two second pulleys (69) are fixedly mounted on the outer walls of the conveyor belt (4).

7. The environmentally friendly coal crushing and conveying device according to claim 4 is characterized by: The dust collecting mechanism (7) comprises a dust-proof cloth (71) fixedly mounted on the inner wall of the dust collecting bin (61); the dust-proof cloth (71) is located between the dust collecting bin (61) and the negative pressure fan (62); a folding plate (72) is fixedly mounted on the inner wall of the dust collecting bin (61); the folding plate (72) is arranged to be inclined upward.

8. The environmentally friendly coal crushing and conveying device according to claim 7 is characterized by: A dust collecting box (73) is provided on one side of the folding plate (72), and the outer wall of the dust collecting box (73) is in contact with the inner wall of the dust collecting bin (61), and a plurality of scrapers (74) are fixedly installed on the top of the dust collecting box (73), and the outer walls of the plurality of scrapers (74) are in contact with the dust-proof cloth (71), and the dust collecting box (73) passes through the outer walls of the dust collecting bin (61) and the crushing box (1), and a rubber plate (75) is fixedly installed on the outer wall of the dust collecting box (73), and a handle (76) is fixedly installed on one side of the rubber plate (75), and the handle (76) extends out of the outer wall of the crushing box (1).

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