Coal as fired feeding device and method for coal pyrolyzing furnace

Abstract

The invention discloses a coal as fired feeding device of a coal pyrolyzing furnace and a method thereof, and relates to the technical field of coal charging, the coal as fired feeding device comprises a coal pyrolyzing furnace main body, a raw gas collecting pipeline is arranged on the side surface of the coal pyrolyzing furnace main body, a dust collecting opening is fixed in the top surface of the coal pyrolyzing furnace main body, and the top end of the dust collecting opening is connected with a fan; the furnace top bin penetrates through and is fixed to the top end of the interior of the coal pyrolyzing furnace body, a coal inlet is formed in the top of the front face of the furnace top bin, a coal outlet is formed in the bottom of the back face of the furnace top bin, a tank cover is fixed to the top face of the furnace top bin, and an L-shaped exhaust pipe penetrates through and is fixed to the top face of the tank cover; according to the device, the annular steam spraying pipe drives the steam spraying head to rotate forwards, the steam spraying head achieves rotary dynamic spraying of steam in the rotating process, and therefore dust falling and cooling are conducted on raw material coal in the furnace top stock bin.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal charging technology, in particular to a coal charging device for coal pyrolysis furnace and a method thereof. BACKGROUND

[0002] The coal pyrolysis furnace is an industrial equipment for heating coal to cause thermal decomposition of coal and convert coal into high value-added products. The main function of the coal charging device is to send raw coal into the coal pyrolysis furnace to realize continuous and stable feeding of raw coal into the coal pyrolysis furnace for pyrolysis reaction.

[0003] The patent No. CN221588410U discloses a continuous coal charging device for coal pyrolysis furnace. The device aims to solve the technical problem of intermittent coal charging into the coal pyrolysis furnace in the prior art. The continuous coal charging device for coal pyrolysis furnace comprises a coal feeding assembly, a collecting hopper, a scattering assembly, a quantitative rotary discharging component, and a dispersion assembly. The coal is transported from the lower layer to the collecting hopper at the upper end through the coal feeding assembly, which reduces the difficulty of coal feeding and saves manpower and resources. The coal is uniformly scattered by the scattering assembly to maintain a fluffy state, and then is uniformly and continuously downward transported by the quantitative rotary discharging component. When the falling coal contacts the dispersion assembly, the dispersion assembly breaks and disperses the coal to the surrounding area, which ensures continuous coal charging into the coal pyrolysis furnace, uniform dispersion, sufficient combustion, and improved coking efficiency and effect.

[0004] However, the existing continuous coal charging device for coal pyrolysis furnace has the following problems. When the coal charging device feeds coal, the temperature in the raw coal pyrolysis bin is too high, which causes overheating of the raw coal. Meanwhile, the raw coal collides with each other in the bin, which generates a large amount of coal powder suspension, affecting the normal pyrolysis. Therefore, the present application provides a coal charging device for coal pyrolysis furnace and a method thereof. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a coal charging device for coal pyrolysis furnace and a method thereof, which solves the problems raised in the background art.

[0006] To achieve the above purpose, the present application realizes the following technical scheme: a coal charging device for coal pyrolysis furnace, comprising: a coal pyrolysis furnace body, a side surface of the coal pyrolysis furnace body is provided with a raw coal gas collecting pipeline, a top surface of the coal pyrolysis furnace body is fixed with a dust collecting port, and a top end of the dust collecting port is connected with a fan; The furnace top bunker is fixed through the inner top of the coal pyrolysis furnace body, the coal inlet is arranged on the front top of the furnace top bunker, the coal outlet is arranged on the back bottom of the furnace top bunker, the tank cover is fixed on the top surface of the furnace top bunker, the L-shaped exhaust pipe is arranged through and fixed on the top surface of the tank cover, the L-shaped exhaust pipe is used for discharging gas in the furnace top bunker, and the temperature sensor is arranged in the furnace top bunker. The square inclined pipe is fixed on the front of the coal inlet of the furnace top bunker, one end of the square inclined pipe away from the furnace top bunker is fixed with a square cover, the top surface of the square inclined pipe is arranged through and fixed with a hopper, and the coal conveying mechanism is arranged in the square inclined pipe. The pipeline is arranged through and rotatably arranged on the middle of the top surface of the tank cover, the servo motor is fixedly arranged on the top surface of the tank cover, the top end of the pipeline is fixedly connected with the bottom end of the rotating shaft of the servo motor, the rotating spray device is arranged on the outer wall of the pipeline, the rotating spray device is used for applying steam to the coal blocks, the steam supply pipeline is rotatably sleeved on the top end of the pipeline, and one end of the steam supply pipeline away from the pipeline is communicated with the nitrogen steam source.

[0007] According to the technical scheme, the coal conveying mechanism comprises a round roller, a conveying belt and a motor, the round roller is arranged through and rotatably arranged on the inner wall of the square inclined pipe, the conveying belt is rotatably arranged on the outer wall of the round roller, and the motor is fixed on the right bottom of the square inclined pipe.

[0008] According to the technical scheme, the coal inlet of the furnace top bunker is arranged through and fixed on the inner wall of the coal pyrolysis furnace body, the furnace top bunker is located in front of the dust collecting port, the tank cover is located above the coal pyrolysis furnace body, and the square inclined pipe is located in front of the coal pyrolysis furnace body.

[0009] According to the technical scheme, the rotating spray device is used for scraping water drops on the tank cover, and the bottom surface of the rotating spray device is provided with the coal sweeping device, and the coal sweeping device is used for sweeping raw coal and water drops on the coal inlet of the furnace top bunker.

[0010] According to the technical scheme, the rotating spray device comprises an annular steam spray pipe, the annular steam spray pipe is fixed on the outer wall of the pipeline, and an electric control valve is arranged at the connection position of the annular steam spray pipe and the pipeline, the electric control valve is used for adjusting the communication state between the pipeline and the annular steam spray pipe, a plurality of steam spray heads are arranged on the bottom of the annular steam spray pipe, and the electric control valve is wirelessly connected with the temperature sensor.

[0011] The top surface of the annular steam spray pipe is fixed with two vertical rods, and the rotating spray device further comprises; The concave blocks are respectively fixed on the top ends of the vertical rods, the inner walls of the concave blocks are respectively fixed with one chamfered plate, and the chamfered plate is used for scraping water drops on the tank cover. The adapter ring is fixed on one side of the two chamfered plates close to each other, the adapter ring is sleeved on the pipeline, and the adapter ring is used for supporting the two chamfered plates.

[0012] According to the technical scheme, the T-shaped pipe is fixed on the top of the outer wall of the vertical rod, the strip shell is fixed on the outer wall of the T-shaped pipe, the strip shell is used for collecting water droplets scraped off by the chamfered plate, the top inclined pipe is fixed in the middle of the bottom surface of the strip shell, the top inclined pipe is fixed on the inner wall of the pipeline, and the top inclined pipe is used for supporting the strip shell.

[0013] According to the technical scheme, the coal sweeping device comprises: a back-shaped frame fixed on the bottom surface of the strip shell, two back-shaped frames are fixed on the outer wall of the back-shaped frame, the back-shaped frame is in an eight-character shape, a vertical recessed plate is fixed on one side of the back-shaped frame away from the back-shaped frame, an inner wall of the vertical recessed plate is fixed with a sheet plate, the sheet plate is in sliding contact with the inner wall of the furnace top bin, the vertical recessed plate drives the sheet plate to rotate forward, and the sheet plate is used for sweeping raw coal from the coal inlet of the furnace top bin.

[0014] According to the technical scheme, the inner wall of the back-shaped frame is fixed with two adapter blocks, one side of the adapter blocks close to each other is fixed with a stirring plate, and the adapter blocks drive the stirring plate to rotate forward.

[0015] A use method of a coal feeding device of a coal pyrolysis furnace, comprising the following steps: S1, the operator starts the coal pyrolysis furnace main body, and the coal pyrolysis furnace main body starts to heat up; S2, the operator puts the raw coal into the hopper, the raw coal falls onto the conveying belt of the coal conveying mechanism, the conveying belt drives the raw coal to move backward, and the raw coal enters the furnace top bin; S3, the temperature sensor detects the temperature at the bottom of the furnace top bin, when the temperature exceeds ℃, the temperature sensor controls the electric control valve to open through a wireless signal, and the nitrogen vapor source transmits the steam to the annular steam jet pipe through the steam supply pipeline and the pipeline, and the steam is sprayed onto the raw coal through the steam spray head; S4, when spraying, the servo motor is started, the output shaft of the servo motor drives the pipeline to rotate, the pipeline drives the annular steam jet pipe to rotate, and the annular steam jet pipe drives the plurality of steam spray heads to realize the rotary dynamic spraying of the steam.

[0016] The application provides a coal feeding device of a coal pyrolysis furnace. (1) The present application is through the cooperation of the coal pyrolysis furnace main body, the dust collecting port, the furnace top bin, the tank cover, the square inclined pipe, the square cover, the hopper, the coal conveying mechanism, the L-shaped exhaust pipe, the pipeline, the temperature sensor and the electric control valve with the steam jet, the L-shaped exhaust pipe on the tank cover discharges the hot evaporated water vapor, the servo motor shaft on the tank cover drives the pipeline to rotate forward, the pipeline rotates in the tank cover, the pipeline drives the annular steam jet pipe to rotate forward, the annular steam jet pipe drives the steam jet head to rotate forward, and the steam jet head realizes the rotary dynamic injection of steam in the rotating process, so that the raw coal is dusted and cooled when the raw coal heat is high.

[0017] (2) The present application is through the setting of the rotary spraying device, so that the annular steam jet pipe, the vertical rod, the concave block and the chamfered plate cooperate with the connecting ring, the concave block drives the chamfered plate to rotate forward, the connecting ring supports the chamfered plate to rotate stably, and the mixture of coal powder and water droplets attached on the tank cover is scraped off in the rotating process of the chamfered plate, so that the accumulation of coal powder on the top of the furnace top bin 3 and the excessive coal powder in the subsequent discharged gas are avoided.

[0018] (3) The present application is through the setting of the rotary spraying device, so that the T-shaped pipe and the strip shell cooperate with the top inclined pipe, the T-shaped pipe drives the strip shell to rotate forward, the top inclined pipe supports the strip shell to rotate, and the water droplets scraped off by the chamfered plate enter the strip shell in the rotating process, so that the mixed water droplets with coal powder are reduced to drop into the raw coal again and affect the subsequent pyrolysis.

[0019] (4) The present application is through the setting of the coal sweeping device, so that the back-shaped frame, the back-shaped frame and the vertical concave plate cooperate with the sheet plate, the vertical concave plate drives the sheet plate to rotate forward, and the sheet plate scrapes off the accumulated coal powder at the inlet of the furnace top bin, so that the coal powder is accumulated at the inlet of the furnace top bin when the coal feeding device feeds the coal into the furnace, and the slow feeding of the furnace top bin is avoided.

[0020] (5) The present application is through the setting of the coal sweeping device, so that the connecting block and the stirring plate cooperate, the connecting block drives the stirring plate to rotate forward, and the stirring plate improves the air flowability at the top of the furnace top bin in the rotating process, so that the coal powder is prevented from being quickly attached to the top of the furnace top bin. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic view of the whole application; Figure 2 It is a schematic view of the internal components of the application; Figure 3 It is a sectional view of the furnace top bin of the application; Figure 4 It is a schematic view of the rotary spraying device of the application; Figure 5 It is a schematic view of the coal sweeping device of the application Figure 4 It is a local enlarged schematic view of A in the application; Figure 6 It is a schematic view of the coal sweeping device of the application; Figure 7 For the invention Figure 6 Local enlarged schematic view at B in the figure.

[0022] In the figure: 1, coal pyrolysis furnace main body; 2, dust collection port; 3, furnace top bin; 4, tank cover; 5, square inclined pipe; 6, square cover; 7, hopper; 8, coal conveying mechanism; 9, L-shaped exhaust pipe; 10, pipeline; 11, temperature sensor; 12, electric control valve; 13, steam nozzle; 14, rotary spraying device; 141, annular steam spray pipe; 142, vertical rod; 143, concave block; 144, chamfered plate; 145, connecting ring; 146, T-shaped pipe; 147, strip shell; 148, top inclined pipe; 15, coal sweeping device; 151, back-shaped frame; 152, back-shaped rack; 153, vertical concave plate; 154, sheet plate; 155, connecting block; 156, stirring plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0024] Please refer to Figures 1-7 An embodiment of the present application is: a coal pyrolysis furnace coal feeding device, comprising: The coal pyrolysis furnace main body 1 is provided with a raw coal gas collection pipeline on the side surface, and the top surface of the coal pyrolysis furnace main body 1 is fixedly provided with a dust collection port 2, and the top end of the dust collection port 2 is connected with a fan; The furnace top bin 3 penetrates and is fixed at the top end inside the coal pyrolysis furnace main body 1, the front top of the furnace top bin 3 is provided with a coal inlet, the back bottom of the furnace top bin 3 is provided with a coal outlet, the top surface of the furnace top bin 3 is fixedly provided with a tank cover 4, the top surface of the tank cover 4 penetrates and is fixedly provided with an L-shaped exhaust pipe 9, the L-shaped exhaust pipe 9 is used for discharging gas in the furnace top bin 3, and the inside of the furnace top bin 3 is provided with a temperature sensor 11; The square inclined pipe 5 is fixed on the front of the coal inlet of the furnace top bin 3, and the end of the square inclined pipe 5 away from the furnace top bin 3 is fixedly provided with a square cover 6, the top surface of the square inclined pipe 5 penetrates and is fixedly provided with a hopper 7, and the inside of the square inclined pipe 5 is installed with a coal conveying mechanism 8; The pipeline 10 penetrates and is rotatably installed on the top surface of the tank cover 4, the top surface of the tank cover 4 is fixedly installed with a servo motor, the top end of the pipeline 10 is fixedly connected with the bottom end of the rotating shaft of the servo motor, the outer wall of the pipeline 10 is provided with a rotary spraying device 14, the rotary spraying device 14 is used for applying steam to the coal blocks, a steam supply pipeline is rotatably sleeved on the top end of the pipeline 10, and one end of the steam supply pipeline away from the pipeline 10 is in communication with a nitrogen steam source; The coal conveying mechanism 8 comprises a round roller, a conveying belt and a motor, the round roller is installed through and rotates in the inner wall of the square inclined pipe 5, the conveying belt is installed on the outer wall of the round roller, the motor is fixed on the bottom right side of the square inclined pipe 5, and the right end of the round roller is fixedly connected with the left end of the rotating shaft of the motor; The coal inlet of the furnace top bin 3 is fixed on the inner wall of the coal pyrolysis furnace body 1, the furnace top bin 3 is located in front of the dust collecting port 2, the tank cover 4 is located above the coal pyrolysis furnace body 1, and the square inclined pipe 5 is located in front of the coal pyrolysis furnace body 1; The rotating spraying device 14 is used for scraping water droplets on the tank cover 4, the bottom surface of the rotating spraying device 14 is provided with the coal sweeping device 15, and the coal sweeping device 15 is used for sweeping raw coal and water droplets on the coal inlet of the furnace top bin 3; The rotating spraying device 14 comprises an annular steam spray pipe 141, the annular steam spray pipe 141 is fixed on the outer wall of the pipeline 10, and the annular steam spray pipe 141 is provided with the electric control valve 12 at the connection position with the pipeline 10, the electric control valve 12 is used for adjusting the communication state between the pipeline 10 and the annular steam spray pipe 141, a plurality of steam spray heads 13 are installed at the bottom of the annular steam spray pipe 141, and the electric control valve 12 is in wireless communication connection with the temperature sensor 11; The annular steam spray pipe 141 is fixed with two vertical rods 142 on the top surface, the rotating spraying device 14 further comprises; The concave blocks 143 are fixed at the top ends of the vertical rods 142 respectively, the inner walls of the concave blocks 143 are respectively fixed with a chamfered plate 144, and the chamfered plate 144 is used for scraping water droplets on the tank cover 4; The connecting ring 145 is fixed on the side, close to each other, of the two chamfered plates 144, the connecting ring 145 is sleeved on the pipeline 10, and the connecting ring 145 is used for supporting the two chamfered plates 144; In use of the device, the coal pyrolysis furnace body 1 supports the dust collecting port 2, the operator starts the coal pyrolysis furnace body 1, the coal pyrolysis furnace body 1 starts to heat, the operator puts the raw coal into the hopper 7, the raw coal in the hopper 7 enters the square inclined pipe 5, the square cover 6 blocks the lower part of the square inclined pipe 5, the raw coal falls on the conveying belt of the coal conveying mechanism 8, the operator starts the motor on the square inclined pipe 5, the rotating shaft of the motor starts to reverse, the rotating shaft of the motor drives the round roller to reverse, the round roller drives the conveying belt to reverse, the conveying belt drives the raw coal to move backward, the raw coal enters the top bin 3, the baffle valve is arranged at the outlet at the bottom of the top bin 3, the raw coal in the top bin 3 can be controlled to enter the coal pyrolysis furnace body 1 through the baffle valve, the temperature sensor 11 detects the temperature at the bottom of the top bin 3, when the temperature exceeds 300 DEG C, the temperature sensor 11 controls the electric control valve 12 to open through a wireless signal, the nitrogen vapor source transmits the vapor to the annular vapor jet pipe 141 through the steam supply pipeline and the pipeline 10, and the vapor is sprayed onto the raw coal through the vapor spray head 13, at the same time, the operator starts the servo motor on the tank cover 4, the rotating shaft of the servo motor starts to rotate forward, the rotating shaft of the servo motor drives the pipeline 10 to rotate forward, the pipeline 10 rotates in the tank cover 4, the pipeline 10 drives the annular vapor jet pipe 141 to rotate, the annular vapor jet pipe 141 rotates to drive the vapor spray head 13 to rotate to realize the rotary dynamic spraying of the vapor, so that the raw coal is dusted and cooled when the heat of the raw coal is high.

[0025] Please refer to Figures 1-7 On the basis of the above embodiment, in another embodiment of the present application, a T-shaped pipe 146 is fixed to the top of the outer wall of the vertical rod 142, and a strip shell 147 is fixed to the outer wall of the T-shaped pipe 146, the strip shell 147 is used for collecting water droplets scraped off by the chamfered plate 144, and a top inclined pipe 148 is fixed to the inner wall of the pipeline 10 and penetrates the middle of the bottom surface of the strip shell 147, the top inclined pipe 148 is used for supporting the strip shell 147; When the annular vapor jet pipe 141 rotates, the vertical rod 142 rotates forward, the vertical rod 142 drives the concave block 143 to rotate forward, the concave block 143 drives the chamfered plate 144 to rotate forward, the chamfered plate 144 drives the connecting ring 145 to rotate forward, the connecting ring 145 supports the chamfered plate 144 to stably rotate, and the chamfered plate 144 scrapes off the mixture of coal powder and water droplets attached to the tank cover 4 in the process of rotating, so that the accumulation of coal powder on the top of the top bin 3 and the excessive coal powder in the subsequent discharged gas are avoided. When the vertical rod 142 drives the concave block 143 to rotate forward, the vertical rod 142 drives the T-shaped pipe 146 to rotate forward, the T-shaped pipe 146 drives the strip shell 147 to rotate forward, the strip shell 147 drives the top inclined pipe 148 to rotate forward, and the top inclined pipe 148 supports the strip shell 147 to rotate, in the process of rotating of the strip shell 147, the water droplets scraped off by the chamfered plate 144 enter the strip shell 147, so that the water droplets mixed with coal powder are reduced to affect the subsequent pyrolysis.

[0026] The coal sweeping device 15 comprises: The U-shaped frame 151 is fixed on the bottom surface of the strip shell 147, and two U-shaped frames 152 are fixed on the outer wall of the U-shaped frame 151, and the U-shaped frames 152 are in the shape of an eight character; The vertical concave plates 153 are respectively fixed on the sides of the U-shaped frames 152 away from the U-shaped frame 151, and one sheet plate 154 is respectively fixed on the inner wall of each vertical concave plate 153, and the outer wall of the sheet plate 154 is in sliding contact with the inner wall of the furnace top bin 3, and the sheet plate 154 is used for sweeping the raw coal accumulated at the coal inlet of the furnace top bin 3; When the T-shaped pipe 146 drives the strip shell 147 to rotate in the positive direction, the strip shell 147 drives the U-shaped frame 151 to rotate in the positive direction, the U-shaped frame 151 drives the U-shaped frame 152 to rotate in the positive direction, the U-shaped frame 152 drives the vertical concave plate 153 to rotate in the positive direction, and the vertical concave plate 153 drives the sheet plate 154 to rotate in the positive direction, so that the sheet plate 154 sweeps the coal powder accumulated at the inlet of the furnace top bin 3 in the process of rotation, thereby avoiding the problem that the coal powder is accumulated at the inlet of the furnace top bin 3 when the coal feeding device feeds the coal into the furnace, and the coal feeding into the furnace is slow.

[0027] Two connecting blocks 155 are fixed on the inner wall of the U-shaped frame 151, and the side of the connecting blocks 155 close to each other is fixed with a stirring plate 156; When the U-shaped frame 151 drives the U-shaped frame 152 to rotate in the positive direction, the U-shaped frame 152 drives the connecting block 155 to rotate in the positive direction, and the connecting block 155 drives the stirring plate 156 to rotate in the positive direction, so that the stirring plate 156 improves the air flowability at the top of the furnace top bin 3 in the process of rotation, and avoids the rapid adhesion of the coal powder on the top of the furnace top bin 3.

[0028] The working principle of the present application is as follows: the pipeline 10 drives the annular steam jet pipe 141 to rotate in the positive direction, the annular steam jet pipe 141 drives the vertical rod 142 to rotate in the positive direction, the vertical rod 142 drives the concave block 143 to rotate in the positive direction, the concave block 143 drives the chamfered plate 144 to rotate in the positive direction, the chamfered plate 144 drives the connecting ring 145 to rotate in the positive direction, and the connecting ring 145 supports the chamfered plate 144 to stably rotate; The vertical rod 142 drives the T-shaped pipe 146 to rotate in the positive direction, the T-shaped pipe 146 drives the strip shell 147 to rotate in the positive direction, the strip shell 147 drives the top inclined pipe 148 to rotate in the positive direction, and the top inclined pipe 148 supports the strip shell 147 to rotate, and the water droplets scraped off by the chamfered plate 144 enter the strip shell 147 in the process of rotation of the strip shell 147; The strip shell 147 drives the U-shaped frame 151 to rotate in the positive direction, the U-shaped frame 151 drives the U-shaped frame 152 to rotate in the positive direction, the U-shaped frame 152 drives the vertical concave plate 153 to rotate in the positive direction, and the vertical concave plate 153 drives the sheet plate 154 to rotate in the positive direction, so that the sheet plate 154 sweeps the coal powder at the inlet of the furnace top bin 3 in the process of rotation; The U-shaped frame 152 drives the adapter block 155 to rotate forward, the adapter block 155 drives the stirring plate 156 to rotate forward, and the stirring plate 156 improves the air flowability at the top of the furnace top bin 3 in the rotating process, so that the coal powder is prevented from being quickly attached to the top of the furnace top bin 3.

[0029] A use method of a coal feeding device of a coal pyrolysis furnace, comprising the following steps: S1, the operator starts the coal pyrolysis furnace body 1, and the coal pyrolysis furnace body 1 starts to heat up; S2, the operator puts the raw coal into the hopper 7, and the raw coal falls onto the conveying belt of the coal conveying mechanism 8, and the conveying belt drives the raw coal to move backward, and the raw coal enters the furnace top bin 3; S3, the temperature sensor 11 detects the temperature at the bottom of the furnace top bin 3, when the temperature exceeds 300 DEG C, the temperature sensor 11 controls the electric control valve 12 to open through a wireless signal, and the nitrogen gas steam source transmits steam to the annular steam spray pipe 141 through the steam supply pipeline and pipeline 10, and the steam is sprayed onto the raw coal through the steam spray head 13; S4, when spraying, the servo motor is started, the servo motor output shaft drives the pipeline 10 to rotate, the pipeline 10 drives the annular steam spray pipe 141 to rotate, and the annular steam spray pipe 141 drives multiple steam spray heads 13 to realize the rotary dynamic spraying of steam.

[0030] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art in the technical range disclosed by the present application, according to the technical scheme and the inventive concept of the present application, equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A coal feeding device for a coal pyrolysis furnace, characterized in that: include: A coal pyrolysis furnace body (1), wherein a raw gas collection pipe is provided on the side of the coal pyrolysis furnace body (1), a dust collecting port (2) is fixed on the top surface of the coal pyrolysis furnace body (1), and a fan is connected to the top of the dust collecting port (2); A furnace top silo (3), the furnace top silo (3) passes through and is fixed to the top of the coal pyrolysis furnace body (1), a coal inlet is provided at the top of the front of the furnace top silo (3), a coal outlet is provided at the bottom of the back of the furnace top silo (3), a tank cover (4) is fixed to the top of the furnace top silo (3), an L-shaped exhaust pipe (9) is passed through and fixed to the top of the tank cover (4), the L-shaped exhaust pipe (9) is used to discharge gas in the furnace top silo (3), and a temperature sensor (11) is provided inside the furnace top silo (3); A square oblique tube (5), the square oblique tube (5) being fixed on the front of the coal inlet of the furnace top silo (3), a square cover (6) being fixed on one end of the square oblique tube (5) away from the furnace top silo (3), a hopper (7) being passed through and fixed on the top surface of the square oblique tube (5), and a coal conveying mechanism (8) being installed inside the square oblique tube (5); A pipeline (10) is provided, wherein the pipeline (10) passes through and is rotatably mounted in the middle of the top surface of the tank cover (4), a servo motor is fixedly mounted on the top surface of the tank cover (4), the top end of the pipeline (10) is fixedly connected to the bottom end of the rotating shaft of the servo motor, a rotary spray device (14) is provided on the outer wall of the pipeline (10), and the rotary spray device (14) is used to apply steam to the coal blocks, a steam supply pipe is rotatably sleeved on the outside of the top end of the pipeline (10), and the end of the steam supply pipe away from the pipeline (10) is connected to a nitrogen steam source.

2. The coal feeding device for a coal pyrolysis furnace according to claim 1, characterized in that: The coal conveying mechanism (8) comprises: a round roller, a conveyor belt and a motor. The round roller penetrates and is rotatably mounted in the inner wall of the square oblique tube (5). The conveyor belt is rotatably mounted on the outer wall of the round roller. The motor is fixed to the bottom right side of the square oblique tube (5). The right end of the round roller is fixedly connected to the left end of the motor's rotating shaft.

3. The coal feeding device for a coal pyrolysis furnace according to claim 2, characterized in that: The coal inlet of the furnace top silo (3) passes through and is fixed on the inner wall of the coal pyrolysis furnace body (1); the furnace top silo (3) is located in front of the dust collecting port (2); the tank cover (4) is located above the coal pyrolysis furnace body (1); and the square oblique pipe (5) is located in front of the coal pyrolysis furnace body (1).

4. The coal feeding device for a coal pyrolysis furnace according to claim 3, characterized in that: The rotary spray device (14) is used to scrape off water droplets on the tank cover (4); a coal sweeping device (15) is provided on the bottom surface of the rotary spray device (14), and the coal sweeping device (15) is used to sweep off raw coal and water droplets on the coal inlet of the furnace top hopper (3).

5. The coal feeding device for a coal pyrolysis furnace according to claim 4, characterized in that: The rotary spray device (14) includes an annular steam nozzle (141), the annular steam nozzle (141) is fixed to the outer wall of the pipeline (10), and an electric control valve (12) is provided at the connection between the annular steam nozzle (141) and the pipeline (10), the electric control valve (12) is used to adjust the communication state between the pipeline (10) and the annular steam nozzle (141), a plurality of steam nozzles (13) are installed at the bottom of the annular steam nozzle (141), and the electric control valve (12) is wirelessly connected to the temperature sensor (11).

6. The coal feeding device for a coal pyrolysis furnace according to claim 5, characterized in that: Two vertical rods (142) are fixed to the top surface of the annular steam spray pipe (141), and the rotary spray device (14) further comprises: Concave blocks (143), the concave blocks (143) are respectively fixed to the top ends of the vertical rods (142), and the inner walls of the concave blocks (143) are respectively fixed with a chamfered plate (144), and the chamfered plate (144) is used to scrape off water drops on the tank cover (4); A connecting ring (145) is fixed on one side of the two chamfered plates (144) close to each other, the connecting ring (145) is sleeved on the pipeline (10), and the connecting ring (145) is used to support the two chamfered plates (144).

7. The coal feeding device for a coal pyrolysis furnace according to claim 6, characterized in that: A T-shaped tube (146) is fixed to the top of the outer wall of each vertical rod (142), and a strip shell (147) is fixed to the outer wall of the T-shaped tube (146). The strip shell (147) is used to collect water droplets scraped off by the chamfered plate (144). A top inclined tube (148) is passed through and fixed in the middle of the bottom surface of the strip shell (147). The inner wall of the top inclined tube (148) is fixed to the pipeline (10), and the top inclined tube (148) is used to support the strip shell (147).

8. The coal feeding device for a coal pyrolysis furnace according to claim 7, characterized in that: The coal sweeping device (15) comprises: A circular frame (151), the circular frame (151) is fixed to the bottom surface of the strip shell (147), and two circular frames (152) are fixed to the outer wall of the circular frame (151), and the circular frames (152) are in an eight-shaped shape; A vertical concave plate (153) is fixed to a side of the circular frame (152) away from the circular frame (151), and a plate (154) is fixed to the inner wall of each vertical concave plate (153). The outer wall of the plate (154) is in sliding contact with the inner wall of the furnace top silo (3). The plate (154) is used to sweep the raw coal from the coal inlet of the furnace top silo (3).

9. The coal feeding device for a coal pyrolysis furnace according to claim 8, characterized in that: Two connecting blocks (155) are fixed to the inner wall of the circular frame (151), and a stirring plate (156) is fixed to the side of the connecting blocks (155) that are close to each other.

10. A method for using a coal feeding device for a coal pyrolysis furnace, using the coal feeding device for a coal pyrolysis furnace according to claim 9, characterized in that: The following steps are involved: S1. The operator starts the coal pyrolysis furnace main body (1), and the coal pyrolysis furnace main body (1) begins to heat up; S2. The operator puts the raw coal into the hopper (7), and the raw coal falls onto the conveyor belt of the coal conveying mechanism (8). The conveyor belt drives the raw coal to move backward, and the raw coal enters the furnace top silo (3); S3, the temperature sensor (11) detects the temperature at the bottom of the furnace top silo (3). When the temperature exceeds 300°C, the temperature sensor (11) controls the electric control valve (12) to open via a wireless signal, and the nitrogen steam source transmits steam to the annular steam nozzle (141) through the steam supply pipe and the pipeline (10), and the steam is sprayed onto the raw coal through the steam nozzle (13); S4. During spraying, the servo motor is started, the output shaft of the servo motor drives the pipeline (10) to rotate, the pipeline (10) drives the annular steam nozzle (141) to rotate, and the annular steam nozzle (141) drives the plurality of steam nozzles (13) to realize the rotational dynamic spraying of steam.

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