A coal mill stone coal discharging device

Abstract

This invention discloses a coal mill stone and coal discharge device, belonging to the field of stone and coal discharge technology. To address the problem of traditional guiding structures lacking a dynamic anti-clogging mechanism, leading to stone and coal accumulation and blockage at the discharge port, the invention includes a coal mill body. The other end of the stone and coal guide trough is fixedly connected to a connecting plate. Several stone and coal guide ports are fixedly connected to the connecting plate. Several through-rod assemblies are slidably connected to the inner walls of each stone and coal guide port. A cylindrical pusher assembly is rotatably connected inside each stone and coal guide port. The inclined pushing surface of the cylindrical pusher assembly rotates continuously under the drive of a driving component. Through the combined action of the pushing force of the stone and coal on the inclined pushing surface and the gravity of the stone and coal itself, the falling position of the stone and coal is changed, avoiding local accumulation, actively dispersing the material, and dynamically adjusting the falling point of the stone and coal, thus rearranging the top stone and coal and reducing the probability of blockage at the stone and coal guide ports.

Description

Technical Field

[0001] This invention relates to the field of stone and coal discharge technology, specifically to a stone and coal discharge device for a coal mill. Background Technology

[0002] As the core pulverizing equipment for coal-fired power generation, coal mills initially crushed coal blocks by impact with steel balls. Later, innovative grinding mechanisms were developed, introducing grinding pressure to replace impact force and solving the problem of coal agglomeration in high-moisture coal. Modern coal milling technology focuses on breakthroughs in wear-resistant materials, intelligent air-coal ratio control, and pre-pulverization modules. Currently, it is deeply integrated with carbon capture systems, laying the technological foundation for the clean transformation of coal-fired power.

[0003] The existing technology has the following main drawbacks:

[0004] Traditional guide structures lack dynamic anti-blocking mechanisms, and stones and coal are prone to accumulate at the discharge outlet, causing blockages.

[0005] To address the above issues, a coal mill stone and coal discharge device is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a coal mill stone and coal discharge device. By using this invention, the problem of traditional guiding structures lacking a dynamic anti-blocking mechanism and stone and coal easily accumulating and causing blockage at the discharge port is solved.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A coal mill stone and coal discharge device is provided, including a coal mill body. One end of the coal mill body is fixedly connected to a stone and coal guide trough, and the other end of the stone and coal guide trough is fixedly connected to a connecting plate. A plurality of stone and coal guide ports are fixedly connected to the connecting plate. A plurality of through rod assemblies are slidably connected to the inner walls of the plurality of stone and coal guide ports. A cylindrical push block assembly is rotatably connected to the plurality of stone and coal guide ports. An inclined push surface is provided on the cylindrical push block assembly. The cylindrical push block assembly is drivenly connected to a drive assembly. The lower ends of the plurality of stone and coal guide ports are respectively fixedly connected to the upper ends of a plurality of annular protective plates. The lower ends of the plurality of annular protective plates are respectively rotatably connected to the upper ends of a plurality of annular ash collection troughs. Several annular ash collection troughs are fixedly connected to one end of several L-shaped connecting plates, and the other end of several L-shaped connecting plates are fixedly connected to the lower end of several cylindrical push block assemblies. A connecting ring is fixedly connected to the annular protective plate, and the connecting ring is located directly above the annular ash collection trough. Several protrusions are fixedly connected to the connecting ring, and the protrusions are arranged in a ring on the inner wall of the connecting ring. The L-shaped connecting plate is fixedly connected to the air cylinder assembly, and a piston assembly is slidably connected inside the air cylinder assembly. The left end of the piston assembly abuts against the protrusions. The right end of the piston assembly is fixedly connected to one end of the first spring, and the other end of the first spring is fixedly connected to the air cylinder assembly. The lower end of the cylindrical push block assembly is also fixedly connected to a nozzle. The nozzle is connected to the air cylinder assembly through a hose. The air cylinder assembly is connected to the outside through a connecting pipe. The lower ends of several annular dust collection troughs are rotatably connected to the upper ends of T-shaped tubes. Several T-shaped tubes are welded to a mounting plate, and the mounting plate is fixed to the ground by several bolts. A screw conveyor is rotatably connected inside several T-shaped tubes. The screw conveyor is connected to the second drive assembly.

[0008] Furthermore, the cylindrical pusher assembly includes a cylindrical block with an inclined push surface. A toothed ring is fixedly connected to the lower end of the cylindrical block. The cylindrical block is rotatably connected inside the stone and coal guide opening. The toothed ring is located below the annular protective plate and is connected to the drive assembly in a transmission manner.

[0009] Furthermore, the drive assembly includes a motor, which is fixedly connected to the annular protective plate. The motor is located outside the stone and coal guide opening, and the output end of the motor is fixedly connected to a gear, which meshes with the gear ring.

[0010] Furthermore, a groove is provided on the inner wall of the stone and coal guide port, the groove is vertically downward, and each of the several through rod assemblies includes a slider, the slider is slidably connected in the groove, and the slider is fixedly connected to the top rod.

[0011] Furthermore, the slider is fixedly connected to the upper end of the second spring, the lower end of the second spring is fixedly connected to the bottom of the groove, and a ball is fixedly connected to the lower end of the top rod.

[0012] Furthermore, the air pump assembly includes an air pump body, which is fixedly connected to an L-shaped connecting plate. The piston assembly is slidably connected inside the air pump body. One end of the first spring is connected to the right end of the piston assembly, and the other end of the first spring is fixedly connected to the bottom of the air pump body.

[0013] Furthermore, two one-way valves are fixedly connected to the right end of the air cylinder body. One of the one-way valves is connected to the nozzle through a hose, and the other one-way valve is connected to the connecting pipe.

[0014] Furthermore, the piston assembly includes a piston body, which is slidably connected to the cylinder body. The right side of the piston body is fixedly connected to one end of the spring. The piston body is fixedly connected to the right end of the push rod. A ball is fixedly connected to the left end of the push rod. The ball abuts against the protrusion. Several dust outlets are provided on the side of the annular dust collection groove.

[0015] Furthermore, the second drive component includes a second motor, which is fixedly connected to the lower end of the coal mill body, and the output end of the second motor is fixedly connected to one end of an auger.

[0016] Furthermore, each of the augers has a synchronous pulley fixedly connected to one end, the synchronous pulleys on the augers are driven by a synchronous belt, and one end of each auger is rotatably connected to a U-shaped rod, the U-shaped rod being fixedly connected to the coal mill body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The inclined pushing surface of the cylindrical pusher assembly rotates continuously under the drive of the drive assembly. Through the combined action of the pushing force of the stones and coal on the inclined pushing surface and the gravity of the stones and coal themselves, the falling position of the stones and coal is changed, avoiding local accumulation, actively dispersing the material, dynamically adjusting the falling point of the stones and coal, and rearranging the top stones and coal, thereby reducing the probability of blockage of the stone and coal guide port.

[0018] 2. The automatic extension and retraction of the through rod assembly, in conjunction with the rotation of the cylindrical block to lift the slider, clears the guide channel in real time, replaces manual cleaning, ensures continuous operation, achieves the purpose of automatically clearing the stone and coal guide channel, and realizes double-layer step-type anti-blocking.

[0019] 3. The nozzle, air cylinder assembly, and piston assembly work together to blow off the attached dust. The dust falls into the annular ash collection trough for unified collection, reducing the volume of the stone coal and achieving the effect of clean discharge of stone coal. The centralized dust treatment is more in line with environmental protection standards. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the T-shaped tube of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the T-shaped tube structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of region A in the middle; Figure 5 This is a cross-sectional view of the overall three-dimensional structure of the stone and coal guide port of the present invention; Figure 6 This is a three-dimensional cross-sectional view of the overall structure of the annular protective plate of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of region B in the middle; Figure 8 This is a three-dimensional cross-sectional view of the air cylinder assembly of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of region C; Figure 10 This is a schematic diagram of the overall three-dimensional structure of the connecting ring of the present invention.

[0021] In the diagram: 1. Coal mill body; 101. T-tube; 102. Screwdriver; 103. Drive assembly two; 104. Motor two; 105. Synchronous pulley; 106. Synchronous belt; 107. U-shaped rod; 2. Stone and coal guide chute; 3. Connecting plate; 4. Stone and coal guide opening; 41. Slide chute; 5. Through rod assembly; 51. Slider; 52. Push rod; 53. Spring two; 54. Ball block; 6. Cylindrical push block assembly; 61. Cylindrical block; 62. Gear ring 7. Inclined push surface; 8. Drive assembly 1; 81. Motor 1; 82. Gear; 9. Annular protective plate; 10. Annular dust collection trough; 20. L-shaped connecting plate; 30. Connecting ring; 40. Protrusion; 50. Air cylinder assembly; 501. Air cylinder body; 502. One-way valve; 60. Piston assembly; 601. Piston body; 602. Push rod; 603. Ball; 604. Dust outlet; 70. Spring 1; 80. Nozzle; 90. Connecting pipe. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] A coal mill stone and coal discharge device, referring to Figure 1 As shown, the device includes a coal mill body 1, which is fixedly connected to one end of a stone and coal guide trough 2. After the coal is ground by the coal mill body 1, the resulting stone and coal particles are discharged from the coal mill body 1 and then enter the stone and coal guide trough 2 under gravity. (Refer to...) Figure 2 As shown, the other end of the stone and coal guide trough 2 is fixedly connected to the connecting plate 3. Several stone and coal guide ports 4 are fixedly connected to the connecting plate 3. The stones and coal that enter the stone and coal guide trough 2 then continue to fall under the action of gravity and enter the several stone and coal guide ports 4.

[0024] Reference Figure 5As shown, several through rod assemblies 5 are slidably connected to the inner walls of several stone and coal guide ports 4. Cylindrical push block assemblies 6 are rotatably connected to each of the stone and coal guide ports 4. The cylindrical push block assemblies 6 have inclined push surfaces 7. The cylindrical push block assemblies 6 are connected to the drive assembly 8. Stones and coal entering the stone and coal guide ports 4 slide downwards along the inclined push surfaces 7 of the cylindrical push block assemblies under gravity, and then slide out from the lower end of the stone and coal guide ports 4. During this process, the drive assembly 8 causes the cylindrical push block assemblies 6 to rotate within the stone and coal guide ports 4 through transmission. As the cylindrical push block assemblies 6 rotate, the stones and coal slide downwards from the cylindrical push block assemblies 6... The inclined push surface 7 slides downwards. Therefore, when the cylindrical push block assembly 6 rotates, the stones and coal falling on its inclined push surface 7 slide downwards along the inclined push surface 7. At the same time, the inclined push surface 7, due to its rotation, continuously pushes the stones and coal located on the inclined push surface 7 to rotate synchronously as they fall along the inclined push surface 7. This causes the position of the stones and coal falling from the stone and coal outlet to change, so as to avoid the stone and coal guide port 4 being blocked due to too many stones. When the inclined push surface 7 on the cylindrical push block assembly 6 rotates to be directly below the through rod assembly 5, that is, when the inclined push surface 7 on the cylindrical push block assembly 6 abuts against the lower end of the through rod assembly 5.

[0025] As the cylindrical pusher assembly 6 continues to rotate, the inclined push surface 7 pushes the through rod assembly 5 to slide upward until the through rod assembly 5 slides to the top of the cylindrical pusher assembly 6. During this process, when blockage occurs in the stone and coal guide channel 2, the through rod assembly 5 slides upward, gradually extending into the stone and coal guide channel 2. As the through rod assembly 5 gradually penetrates into the stone and coal guide channel 2, its top can push some of the stones and coal located in the stone and coal guide channel 2 to move, thereby changing the position of the stones and coal located in the stone and coal guide channel 2, which can help the stones and coal fall smoothly and thus avoid blockage in the stone and coal guide channel 2.

[0026] Reference Figure 8 As shown, the lower ends of several stone and coal guide ports 4 are fixedly connected to the upper ends of several annular protective plates 9, the lower ends of several annular protective plates 9 are rotatably connected to the upper ends of several annular ash collection troughs 10, the several annular ash collection troughs 10 are fixedly connected to one end of several L-shaped connecting plates 20, and the other end of several L-shaped connecting plates 20 is fixedly connected to the lower ends of several cylindrical push block assemblies 6. When the cylindrical push block assembly 6 rotates, it drives the L-shaped connecting plate 20 fixedly connected to it to rotate, thereby causing the annular ash collection trough 10 to rotate synchronously.

[0027] Reference Figures 7-10As shown, a connecting ring 30 is fixedly connected to the annular protective plate 9. The connecting ring 30 is located directly above the annular dust collection trough 10. Several protrusions 40 are fixedly connected to the connecting ring 30. The several protrusions 40 are arranged in a ring on the inner wall of the connecting ring 30. The L-shaped connecting plate 20 is fixedly connected to the air cylinder assembly 50. A piston assembly 60 is slidably connected inside the air cylinder assembly 50. The left end of the piston assembly 60 abuts against the protrusions 40. The right end of the piston assembly 60 is fixedly connected to one end of the spring 70. The other end of the spring 70 is fixedly connected to the air cylinder assembly 50. A nozzle 80 is also fixedly connected to the lower end of the cylindrical push block assembly 6. The nozzle 80 is connected to the air cylinder assembly 50 through a hose. The air cylinder assembly 50 is connected to the outside through a connecting pipe 90.

[0028] When the cylindrical pusher assembly 6 rotates, it drives the annular dust collection trough 10 to rotate synchronously, which in turn drives the air cylinder assembly 50, piston assembly 60, spring 70, and nozzle 80 to rotate synchronously. As the piston assembly 60 rotates with the cylindrical pusher, its left end abuts against the protrusion 40. When the left end of the piston assembly 60 disengages from one protrusion 40, the piston assembly 60 moves to the left under the elastic force of the spring 70. The spring 70 then returns to its original position, and subsequently, the piston assembly 60 abuts against the next protrusion 40, moving to the right. Simultaneously, the spring 70 is compressed. This process continues... As the spring 70 is compressed, and the piston assembly 60 moves to the right, it squeezes out the gas in the air cylinder assembly 50. The squeezed-out gas then enters the nozzle 80 through the hose and is then sprayed out from the nozzle 80. Since the nozzle 80 is fixedly connected to the lower end of the cylindrical push block assembly 6, the position of the nozzle 80 spraying gas is always facing the inclined push surface 7 of the cylindrical push block assembly 6. Therefore, when the stones and coal slide down the inclined push surface 7 and continue to fall, they pass through the position facing the nozzle 80, so the gas sprayed by the nozzle 80 can blow onto the stones and coal.

[0029] Since the velocity of the ejected gas is insufficient to blow the stones away from their falling position, the dust on the stones can be separated from them during this process. Meanwhile, the stones continue to fall, and the dust falls into the annular ash collection trough 10 under the combined action of gravity and gas. This design increases the subsequent discharge velocity of the stones. At the same time, the separation of the stones from the dust reduces the volume of the stones, lowering transportation and landfill costs. Furthermore, due to its low combustibility, it is easier to pass the solid waste environmental protection acceptance.

[0030] Reference Figures 1-3As shown, the lower ends of several annular ash collection troughs 10 are rotatably connected to the upper ends of T-shaped pipes 101. Several T-shaped pipes 101 are welded to a mounting plate, and the mounting plate is then fixed to the ground by several bolts. Screws 102 are rotatably connected inside several T-shaped pipes 101. The screws 102 are connected to the drive assembly 103. The gas sprayed from the nozzle 80 blows the dust off the stones and coal. At the same time, the stones and coal continue to fall and enter the T-shaped pipes 101. Then, under the action of the drive assembly 103, the screws 102 rotate. Through the rotation of the screws 102, the stones and coal are transported to the right end of the T-shaped pipes 101 for discharge.

[0031] Reference Figure 3 and Figure 6 As shown, the cylindrical pusher assembly 6 includes a cylindrical block 61 with an inclined push surface 7. A toothed ring 62 is fixedly connected to the lower end of the cylindrical block 61. The cylindrical block 61 is rotatably connected inside the stone and coal guide port 4. The diameter of the cylindrical block 61 is smaller than the inner diameter of the stone and coal guide port 4. The outer wall of the cylindrical block 61 is in close contact with the inner wall of the stone and coal guide port 4. The toothed ring 62 is located below the annular protective plate 9 and is connected to the drive assembly 8.

[0032] The drive assembly 8 includes a motor 81, which is fixedly connected to the annular protective plate 9. The motor 81 is located outside the stone coal guide port 4. The output end of the motor 81 is fixedly connected to a gear 82, which meshes with a gear ring 62. When the coal mill discharges stone coal, the motor 81 starts, causing the motor 81 to drive the gear 82, which is fixedly connected to it, to rotate. Through the meshing action of the gear 82 and the gear ring 62, the gear ring 62 rotates synchronously. Since the gear ring 62 is fixedly connected to the cylindrical block 61, the gear ring 62 drives the cylindrical block 61 to rotate when it rotates. When the coal mill discharges stone coal, the motor 81 starts, and through the transmission action, it drives the gear ring 62 to rotate, which in turn drives the cylindrical block 61, which is fixedly connected to the gear ring 62, to rotate.

[0033] Because the cylindrical block 61 has an inclined pushing surface 7, the stones and coal that slide down from the other end of the stone and coal guide chute 2 then enter the stone and coal guide opening 4 and fall onto the inclined pushing surface 7 of the cylindrical block 61. They then continue to slide down along the inclined pushing surface 7. During this process, the rotation of the cylindrical block 61 causes the inclined pushing surface 7 on the cylindrical block 61 to push the stones and coal falling onto the inclined pushing surface 7 to rotate synchronously. Under the action of gravity, the stones and coal slide down on the inclined pushing surface 7, that is, the height of the stones and coal relative to the ground decreases, which causes the position of the stones and coal falling from the lower end of the stone and coal guide opening 4 to change. When the stones and coal get stuck on the inclined pushing surface 7 and the inside of the stone and coal guide opening 4, the inclined pushing surface 7 pushes the stones and coal to rotate, causing the stuck stones and coal to change position. This allows the stuck stones and coal to no longer block the stones and coal above them from continuing to fall, making the stone and coal discharge smoother.

[0034] Reference Figures 3-5 As shown, a groove 41 is provided on the inner wall of the stone and coal guide port 4. The groove 41 is vertically downward. Several through rod assemblies 5 each include a slider 51. The slider 51 is slidably connected in the groove 41. The slider 51 is fixedly connected to the top rod 52.

[0035] The upper end of slider 51 is fixedly connected to the second spring 53, and the lower end of the second spring 53 is fixedly connected to the bottom of the groove 41. The lower end of the push rod 52 is fixedly connected to a ball block 54. When the inclined push surface 7 of the cylindrical block 61 rotates to the position of abutting the ball block 54, as the cylindrical block 61 continues to rotate, the inclined push surface 7 pushes the ball block 54 to move, thereby driving the push rod 52, which is fixedly connected to the ball block 54, to move. Since the push rod 52 is fixedly connected to slider 51, and slider 51 slides in the groove 41, under the limiting action of the groove 41, the ball block 54 drives the push rod 52 and slider 51 to slide upward in the groove 41. At this time, the second spring 53 is stretched. When the ball block 54 slides off the inclined push surface 7... When the cylindrical block 61 reaches its top, the push rod 52 stops sliding upwards. At this point, the slider 51 is still in the groove 41. The cylindrical block 61 rotates to the position of the groove 41. The side of the cylindrical block 61, i.e., the curved surface of the cylindrical block 61 that fits against the stone and coal guide groove 2, blocks the groove 41, preventing stones and coal from falling into the groove 41. During this process, the push rod 52 moves upwards, allowing it to extend into the stone and coal guide groove 2. When the stone and coal guide groove 2 is blocked, the push rod 52 pushes away some stones and coal as it extends into the stone and coal guide groove 2, thereby rearranging the stones and coal in the stone and coal guide groove 2 and achieving the purpose of unblocking the stone and coal guide groove 2.

[0036] Reference Figures 8-9As shown, the air pump assembly 50 includes an air pump body 501, which is fixedly connected to an L-shaped connecting plate 20. A piston assembly 60 is slidably connected inside the air pump body 501. One end of a spring 70 is connected to the right end of the piston assembly 60, and the other end of the spring 70 is fixedly connected to the bottom of the air pump body 501.

[0037] Two one-way valves 502 are fixedly connected to the right end of the air cylinder body 501. One of the one-way valves 502 is connected to the nozzle 80 through a hose, and the other one-way valve 502 is connected to the connecting pipe 90.

[0038] The piston assembly 60 includes a piston body 601, which is slidably connected inside the air cylinder body 501. The right side of the piston body 601 is fixedly connected to one end of the spring 70. The piston body 601 is fixedly connected to the right end of the push rod 602. The left end of the push rod 602 is fixedly connected to a ball 603, which abuts against the protrusion 40. When the cylindrical block 61 rotates, it drives the L-shaped connecting plate 20 to rotate synchronously, which in turn drives the annular dust collection trough 10 fixedly connected to the L-shaped connecting plate 20 to rotate synchronously. When the L-shaped connecting plate 20 rotates, it drives the air cylinder body 501, the connecting pipe 90, the nozzle 80, the spring 70, the ball 603, and the two one-way valves 502. When the ball 603 disengages from one of the protrusions 40, the spring 70 returns to its original position, which causes the piston body 601 to slide to the left inside the air cylinder body 501.

[0039] Simultaneously, the push rod 602 moves synchronously. Since the connecting pipe 90 passes through the side of the annular ash collection trough 10 and connects to the outside, under the action of negative pressure, outside air enters the connecting pipe 90 and then enters the air cylinder body 501 through the connecting pipe 90 and the one-way valve 502 fixedly connected to the connecting pipe 90. As the cylindrical block 61 continues to rotate, the ball 603 abuts against the next protrusion 40. Under the squeezing action of the protrusion 40, the push rod 602 pushes the piston body 601 towards the air cylinder body. When the bottom of 501 slides, the spring 70 is compressed. During this process, the gas in the air cylinder flows out from another one-way valve 502, enters the nozzle 80 through the hose, and then sprays out from the nozzle 80, blowing the dust on the stones and coal into the annular ash collection trough 10. The stones and coal continue to fall under the action of gravity and enter the T-shaped pipe 101. Several dust outlets 604 are opened on the side of the annular ash collection trough 10. The operator removes the dust in the annular ash collection trough 10 through the dust outlets 604 and processes it uniformly.

[0040] Reference Figures 1-2 As shown, the drive assembly 2 103 includes a motor 2 104, which is fixedly connected to the lower end of the coal mill body 1, and the output end of the motor 2 104 is fixedly connected to one end of an auger 102.

[0041] Each of several augers 102 has a synchronous pulley 105 fixedly connected to one end. The synchronous pulleys 105 on the several augers 102 are driven by a synchronous belt 106. Each of the several augers 102 has one end rotatably connected to a U-shaped rod 107. The U-shaped rod 107 is fixedly connected to the coal mill body 1. When the gravel and coal enter the T-shaped tube 101, under the action of the motor 104, one of the augers 102 fixedly connected to it rotates, which in turn drives the synchronous pulley 105 fixedly connected to that auger 102 to rotate. Through the transmission action of the synchronous belt 106, the other augers 102 are driven to rotate, and the gravel and coal are discharged through the augers 102.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal mill stone and coal discharge device, characterized in that: The system includes a coal mill body (1), one end of which is fixedly connected to a stone and coal guide trough (2), and the other end of which is fixedly connected to a connecting plate (3). Several stone and coal guide ports (4) are fixedly connected to the connecting plate (3). Several through rod assemblies (5) are slidably connected to the inner walls of each of the stone and coal guide ports (4). Cylindrical push block assemblies (6) are rotatably connected to each of the stone and coal guide ports (4). Inclined push surfaces (7) are provided on the cylindrical push block assemblies (6). The cylindrical push block assemblies (6) are connected to a drive assembly. A (8) transmission connection, the lower ends of several stone and coal guide ports (4) are fixedly connected to the upper ends of several annular protective plates (9), the lower ends of several annular protective plates (9) are rotatably connected to the upper ends of several annular ash collection troughs (10), the several annular ash collection troughs (10) are fixedly connected to one end of several L-shaped connecting plates (20), the other end of several L-shaped connecting plates (20) are fixedly connected to the lower ends of several cylindrical push block assemblies (6), a connecting ring (30) is fixedly connected to the annular protective plate (9), the connecting ring (30) Located directly above the annular ash collection trough (10), a plurality of protrusions (40) are fixedly connected to the connecting ring (30), and the plurality of protrusions (40) are arranged in a ring on the inner wall of the connecting ring (30). The L-shaped connecting plate (20) is fixedly connected to the air cylinder assembly (50), and a piston assembly (60) is slidably connected inside the air cylinder assembly (50). The left end of the piston assembly (60) abuts against the protrusions (40), the right end of the piston assembly (60) is fixedly connected to one end of the first spring (70), and the other end of the first spring (70) is fixedly connected to the air cylinder assembly (50). The lower end of the cylindrical pusher assembly (6) is also fixedly connected to a nozzle (80). The nozzle (80) is connected to the air cylinder assembly (50) through a hose. The air cylinder assembly (50) is connected to the outside through a connecting pipe (90). The lower ends of several annular dust collection troughs (10) are rotatably connected to the upper ends of T-shaped tubes (101). Several T-shaped tubes (101) are welded to the mounting plate. The mounting plate is then fixed to the ground by several bolts. A screw conveyor (102) is rotatably connected inside several T-shaped tubes (101). The screw conveyor (102) is connected to the drive assembly two (103) for transmission.

2. The coal mill stone and coal discharge device according to claim 1, characterized in that: The cylindrical pusher assembly (6) includes a cylindrical block (61), on which an inclined push surface (7) is provided. A toothed ring (62) is fixedly connected to the lower end of the cylindrical block (61). The cylindrical block (61) is rotatably connected to the stone and coal guide port (4). The toothed ring (62) is located below the annular protective plate (9). The toothed ring (62) is connected to the drive assembly (8) in a transmission manner.

3. The coal mill stone and coal discharge device according to claim 2, characterized in that: The drive assembly (8) includes a motor (81), which is fixedly connected to an annular protective plate (9). The motor (81) is located on the outside of the stone and coal guide port (4). The output end of the motor (81) is fixedly connected to a gear (82), which meshes with a gear ring (62).

4. The coal mill stone and coal discharge device according to claim 1, characterized in that: The inner wall of the stone and coal guide port (4) is provided with a sliding groove (41), the sliding groove (41) is vertically downward, and several of the through rod assemblies (5) include sliders (51), the sliders (51) are slidably connected in the sliding groove (41), and the sliders (51) are fixedly connected to the top rod (52).

5. A coal mill stone and coal discharge device according to claim 4, characterized in that: The upper end of the slider (51) is fixedly connected to the second spring (53), the lower end of the second spring (53) is fixedly connected to the bottom of the groove (41), and the lower end of the top rod (52) is fixedly connected to a ball block (54).

6. The coal mill stone and coal discharge device according to claim 1, characterized in that: The air pump assembly (50) includes an air pump body (501), which is fixedly connected to an L-shaped connecting plate (20). The piston assembly (60) is slidably connected inside the air pump body (501). One end of the first spring (70) is connected to the right end of the piston assembly (60), and the other end of the first spring (70) is fixedly connected to the bottom of the air pump body (501).

7. A coal mill stone and coal discharge device according to claim 6, characterized in that: Two one-way valves (502) are fixedly connected to the right end of the air cylinder body (501). One of the one-way valves (502) is connected to the nozzle (80) through a hose, and the other one-way valve (502) is connected to the connecting pipe (90).

8. A coal mill stone and coal discharge device according to claim 7, characterized in that: The piston assembly (60) includes a piston body (601), which is slidably connected inside the air cylinder body (501). The right side of the piston body (601) is fixedly connected to one end of the spring (70). The piston body (601) is fixedly connected to the right end of the push rod (602). A ball (603) is fixedly connected to the left end of the push rod (602). The ball (603) abuts against the protrusion (40). Several dust outlets (604) are provided on the side of the annular dust collection groove (10).

9. A coal mill stone and coal discharge device according to claim 1, characterized in that: The second drive component (103) includes a second motor (104), which is fixedly connected to the lower end of the coal mill body (1), and the output end of the second motor (104) is fixedly connected to one end of an auger (102).

10. A coal mill stone and coal discharge device according to claim 9, characterized in that: One end of each of the augers (102) is fixedly connected to a synchronous pulley (105). The synchronous pulleys (105) on the augers (102) are driven by a synchronous belt (106). One end of each of the augers (102) is rotatably connected to a U-shaped rod (107). The U-shaped rod (107) is fixedly connected to the coal mill body (1).

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