Coal feeding device for coal pyrolysis furnace and method thereof

Abstract

The application discloses a coal feeding device for a coal pyrolysis furnace and a method thereof, and relates to the technical field of coal feeding. The coal feeding device comprises a coal pyrolysis furnace body, a raw coal gas collecting pipeline is arranged on the side of the coal pyrolysis furnace body, a dust collecting port is fixed to the top surface of the coal pyrolysis furnace body, and a fan is connected to the top end of the dust collecting port. A furnace top stock bin is fixed to the top end inside the coal pyrolysis furnace body, a coal inlet is formed in the top of the front surface of the furnace top stock bin, a coal outlet is formed in the bottom of the back surface of the furnace top stock bin, a tank cover is fixed to the top surface of the furnace top stock bin, an L-shaped exhaust pipe is fixed to the top surface of the tank cover, and the L-shaped exhaust pipe is used for exhausting gas in the furnace top stock bin. The application drives the steam nozzle to rotate in the positive direction through the annular steam nozzle, and the steam nozzle realizes the rotary dynamic injection of steam in the rotating process, so that the raw coal in the furnace top stock bin is dusted and cooled.

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 that the coal charging into the coal pyrolysis furnace is intermittent and cannot be continuous 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 dispersing assembly. The coal is transported from the lower layer to the collecting hopper at the upper end by 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 downwardly transported by the quantitative rotary discharging component. When the falling coal contacts the dispersing assembly, the coal is broken and dispersed to the surrounding, which ensures that the coal can continuously enter the coal pyrolysis furnace, is uniformly dispersed, is fully combusted, and improves the efficiency and effect of coking.

[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 the raw coal to overheat. 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 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:

[0007] 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;

[0008] The furnace top bin is fixed through the inner top of the coal pyrolysis furnace body, the front top of the furnace top bin is provided with a coal inlet, the back bottom of the furnace top bin is provided with a coal outlet, the top surface of the furnace top bin is fixed with a tank cover, the top surface of the tank cover is fixed through and communicated with an L-shaped exhaust pipe, the L-shaped exhaust pipe is used for discharging gas in the furnace top bin, and the inside of the furnace top bin is provided with a temperature sensor.

[0009] The square inclined pipe is fixed on the front of the coal inlet of the furnace top bin, one end of the square inclined pipe away from the furnace top bin is fixed with a square cover, the top surface of the square inclined pipe is fixed through and communicated with a hopper, and the inside of the square inclined pipe is provided with a coal conveying mechanism.

[0010] The pipeline is fixed through and rotatably arranged on the middle of the top surface of the tank cover, the top surface of the tank cover is fixedly provided with a servo motor, the top end of the pipeline is fixedly connected with the bottom end of the rotating shaft of the servo motor, the outer wall of the pipeline is provided with a rotary spraying device, the rotary spraying device is used for applying steam to the coal blocks, the top end of the pipeline is rotatably sleeved with a steam supply pipeline, and one end of the steam supply pipeline away from the pipeline is communicated with a nitrogen steam source.

[0011] According to the above technical scheme, the coal conveying mechanism comprises a round roller, a conveying belt and a motor, the round roller is fixed 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 right end of the round roller is fixedly connected with the left end of the rotating shaft of the motor.

[0012] According to the above technical scheme, the coal inlet of the furnace top bin is fixed through and arranged on the inner wall of the coal pyrolysis furnace body, the furnace top bin 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.

[0013] According to the above technical scheme, the rotary spraying device is used for scraping off water droplets on the tank cover; the bottom surface of the rotary spraying device is provided with a coal sweeping device, and the coal sweeping device is used for sweeping off raw coal and water droplets on the coal inlet of the furnace top bin.

[0014] According to the above technical scheme, the rotary spraying device comprises an annular steam jet pipe, the annular steam jet 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 jet pipe and the pipeline, the electric control valve is used for adjusting the communication state between the pipeline and the annular steam jet pipe, a plurality of steam nozzles are arranged on the bottom of the annular steam jet pipe, and the electric control valve is wirelessly connected with the temperature sensor.

[0015] The top surface of the annular steam jet pipe is fixed with two vertical rods, and the rotary spraying device further comprises;

[0016] The concave block is fixed at the top end of the vertical rod, and the inner wall of the concave block is fixed with a chamfering plate, which is used to scrape off water drops on the cover.

[0017] The connecting ring is fixed at the side where the two chamfering plates are close to each other, and the connecting ring is sleeved on the pipeline, which is used to support the two chamfering plates.

[0018] According to the above technical scheme, the outer wall of the T-shaped pipe is fixed with a strip shell, which is used to collect water drops scraped off by the chamfering plate, and the middle of the bottom surface of the strip shell is penetrated and fixed with a top inclined pipe, the inner wall of the top inclined pipe is fixed on the pipeline, and the top inclined pipe is used to support the strip shell. The T-shaped pipe drives the strip shell to rotate in the positive direction, and the top inclined pipe supports the rotation of the strip shell.

[0019] According to the above technical scheme, the sweep coal 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 the shape of an eight-character, a vertical concave plate is fixed on the side of the back-shaped frame away from the back-shaped frame, and the inner wall of the vertical concave plate is fixed with a sheet plate. The outer wall of the sheet plate is in sliding contact with the inner wall of the furnace top bin, the vertical concave plate drives the sheet plate to rotate in the positive direction, and the sheet plate is used to sweep raw coal from the coal inlet of the furnace top bin.

[0020] According to the above technical scheme, the inner wall of the back-shaped frame is fixed with two connecting blocks, and the side where the connecting blocks are close to each other is fixed with a stirring plate. The connecting block drives the stirring plate to rotate in the positive direction.

[0021] A method for using a coal feeding device of a coal pyrolysis furnace, comprising the following steps:

[0022] S1, the operator starts the coal pyrolysis furnace body, and the coal pyrolysis furnace body starts to heat up;

[0023] S2, the operator puts the raw coal into the hopper, and the raw coal falls onto the conveyor belt of the coal conveying mechanism. The conveyor belt drives the raw coal to move backward, and the raw coal enters the furnace top bin;

[0024] S3, the temperature sensor detects the temperature at the bottom of the furnace top bin. When the temperature exceeds 300 DEG C, the temperature sensor controls the electric control valve to open through a wireless signal. The nitrogen vapor source transmits steam to the annular steam jet pipe through the steam supply pipeline and pipeline, and the steam is sprayed onto the raw coal through the steam jet head;

[0025] 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 multiple steam jet heads to realize the rotary dynamic spraying of steam.

[0026] The application provides an inlet coal feeding device of a coal pyrolysis furnace.

[0027] (1) The application is characterized in that the coal pyrolysis furnace main body, dust collecting port, furnace top bin, tank cover, square inclined pipe, square cover, hopper, coal conveying mechanism, L-shaped exhaust pipe, pipeline, temperature sensor and electric control valve cooperate with the steam nozzle, the L-shaped exhaust pipe on the tank cover discharges hot evaporated water vapor, the servo motor rotating shaft on the tank cover drives the pipeline to rotate forward, the pipeline rotates in the tank cover, the pipeline drives the annular steam nozzle to rotate forward, the annular steam nozzle drives the steam nozzle to rotate forward, and the steam nozzle realizes the rotary dynamic injection of steam in the rotating process, so that the raw coal is dedusted and cooled when the raw coal heat is high.

[0028] (2) The application is characterized in that the setting of the rotary spraying device enables the annular steam nozzle, vertical rod, concave block and chamfered plate to cooperate with the connecting ring, the concave block drives the chamfered plate to rotate forward, the connecting ring supports the chamfered plate to stably rotate, and the mixture of coal powder and water droplets attached to the tank cover is scraped off in the rotating process of the chamfered plate, so that the coal powder is prevented from accumulating on the top of the furnace top bin 3 and the excessive coal powder in the subsequent discharged gas.

[0029] (3) The application is characterized in that the setting of the rotary spraying device enables the T-shaped pipe and strip shell to 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 of the strip shell, so that the water droplets mixed with coal powder are prevented from falling into the raw coal again and affecting the subsequent pyrolysis.

[0030] (4) The application is characterized in that the setting of the coal sweeping device enables the back-shaped frame, back-shaped frame and vertical concave plate to cooperate with the sheet plate, the vertical concave plate drives the sheet plate to rotate forward, and the sheet plate scrapes off the coal powder accumulated at the feed inlet of the furnace top bin, so that the coal powder accumulated at the feed inlet of the furnace top bin is prevented from causing the slow feeding of the furnace top bin when the inlet coal feeding device feeds coal.

[0031] (5) The application is characterized in that the setting of the coal sweeping device enables the connecting block and stirring plate to cooperate, the connecting block drives the stirring plate to rotate forward, and the stirring plate improves the air flowability of the top of the furnace top bin in the rotating process, so that the coal powder is prevented from quickly attaching to the top of the furnace top bin. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic diagram of the whole application;

[0033] Figure 2 It is a schematic diagram of the internal components of the application;

[0034] Figure 3 It is a sectional view of the furnace top bin of the application;

[0035] Figure 4 It is a schematic diagram of the rotary spraying device of the application;

[0036] Figure 5 For the present application Figure 4 is a local enlarged view of A in the present application;

[0037] Figure 6 For the present application is a local enlarged view of A in the present application;

[0038] Figure 7 For the present application Figure 6 is a local enlarged view of B in the present application.

[0039] In the figure: 1, coal pyrolysis furnace main body; 2, dust collection port; 3, 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 nozzle; 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 frame; 153, vertical concave plate; 154, sheet plate; 155, connecting block; 156, stirring plate. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0041] Please refer to Figures 1-7 , an embodiment of the present application is: a coal feeding device for a coal pyrolysis furnace, comprising:

[0042] The coal pyrolysis furnace main body 1 is provided with a raw gas collection pipeline on the side surface, and the top surface of the coal pyrolysis furnace main body 1 is fixed with a dust collection port 2, and the top end of the dust collection port 2 is connected with a fan;

[0043] The top bin 3 penetrates and is fixed at the top end inside the coal pyrolysis furnace main body 1, the front top of the top bin 3 is provided with a coal inlet, the back bottom of the top bin 3 is provided with a coal outlet, the top surface of the top bin 3 is fixed with a tank cover 4, the top surface of the tank cover 4 penetrates and is fixed with an L-shaped exhaust pipe 9, the L-shaped exhaust pipe 9 is used for discharging gas in the top bin 3, and the inside of the top bin 3 is provided with a temperature sensor 11;

[0044] The square inclined pipe 5 is fixed on the front of the coal inlet of the top bin 3, and the end of the square inclined pipe 5 away from the top bin 3 is fixed with a square cover 6, the top surface of the square inclined pipe 5 penetrates and is fixed with a hopper 7, and the inside of the square inclined pipe 5 is installed with a coal conveying mechanism 8;

[0045] A pipeline 10 is penetratingly and rotatably installed in the middle of the top surface of the tank cover 4, a servo motor is fixedly installed on the top surface of the tank cover 4, the top end of the pipeline 10 is fixedly connected with the bottom end of the rotating shaft of the servo motor, a rotating spray device 14 is arranged on the outer wall of the pipeline 10, the rotating spray 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 the end, away from the pipeline 10, of the steam supply pipeline is in communication with a nitrogen steam source;

[0046] The coal conveying mechanism 8 comprises a circular roller, a conveying belt and a motor, the circular roller is penetratingly and rotatably installed in the inner wall of the square inclined pipe 5, the conveying belt is rotatably installed on the outer wall of the circular roller, and the motor is fixedly installed on the bottom of the right side of the square inclined pipe 5, the right end of the circular roller is fixedly connected with the left end of the rotating shaft of the motor;

[0047] The coal inlet of the furnace top bin 3 is penetratingly and fixedly installed 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;

[0048] The rotating spray device 14 is used for scraping off the water droplets on the tank cover 4, and a coal sweeping device 15 is arranged on the bottom surface of the rotating spray device 14, the coal sweeping device 15 is used for sweeping the raw coal and water droplets on the coal inlet of the furnace top bin 3;

[0049] The rotating spray device 14 comprises an annular steam spray pipe 141, the annular steam spray pipe 141 is fixedly installed on the outer wall of the pipeline 10, an electric control valve 12 is arranged at the connection position between the annular steam spray pipe 141 and 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 on 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;

[0050] Two vertical rods 142 are fixedly installed on the top surface of the annular steam spray pipe 141, and the rotating spray device 14 further comprises;

[0051] A concave block 143 is fixedly installed on the top end of each vertical rod 142, an inner wall of the concave block 143 is fixedly installed with a chamfered plate 144, and the chamfered plate 144 is used for scraping off the water droplets on the tank cover 4;

[0052] A linking ring 145 is fixedly installed on the side, close to each other, of the two chamfered plates 144, the linking ring 145 is sleeved on the pipeline 10, and the linking ring 145 is used for supporting the two chamfered plates 144;

[0053] 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.

[0054] 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, respectively, 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, 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, and the top inclined pipe 148 is used for supporting the strip shell 147.

[0055] 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 rotate stably, 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 rotation, 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.

[0056] 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 rotation 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 be dropped into the raw coal again and affect the subsequent pyrolysis.

[0057] The coal sweeping device 15 comprises:

[0058] The back-shaped frame 151 is fixed on the bottom surface of the strip shell 147, and two back-shaped supports 152 are fixed on the outer wall of the back-shaped frame 151, and the back-shaped supports 152 are in the shape of an eight-character;

[0059] The vertical concave plates 153 are respectively fixed on the sides of the back-shaped supports 152 away from the back-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 inlet of the furnace top bin 3;

[0060] When the T-shaped pipe 146 drives the strip shell 147 to rotate in the positive direction, the strip shell 147 drives the back-shaped frame 151 to rotate in the positive direction, the back-shaped frame 151 drives the back-shaped support 152 to rotate in the positive direction, the back-shaped support 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 can scrape 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.

[0061] Two connecting blocks 155 are fixed on the inner wall of the back-shaped frame 151, and the side of the connecting blocks 155 close to each other is fixed with a stirring plate 156;

[0062] When the back-shaped frame 151 drives the back-shaped support 152 to rotate in the positive direction, the back-shaped support 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 can improve the air flowability at the top of the furnace top bin 3 in the process of rotation, and avoid that the coal powder is rapidly attached to the top of the furnace top bin 3.

[0063] 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;

[0064] 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 by the chamfered plate 144 enter the strip shell 147 in the process of rotation of the strip shell 147;

[0065] The strip shell 147 drives the U-shaped frame 151 to rotate forward, the U-shaped frame 151 drives the U-shaped frame 152 to rotate forward, the U-shaped frame 152 drives the vertical concave plate 153 to rotate forward, the vertical concave plate 153 drives the sheet plate 154 to rotate forward, and the sheet plate 154 scrapes the pulverized coal in the feed inlet of the furnace top bin 3 in the rotating process;

[0066] The U-shaped frame 152 drives the connecting block 155 to rotate forward, the connecting 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 pulverized coal is prevented from being rapidly attached to the top of the furnace top bin 3.

[0067] A use method of a coal feeding device of a coal pyrolysis furnace, comprising the following steps:

[0068] S1, an operator starts the coal pyrolysis furnace body 1, and the coal pyrolysis furnace body 1 starts to heat up;

[0069] 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;

[0070] 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 vapor source transmits the steam to the annular steam jet 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;

[0071] 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 jet pipe 141 to rotate, and the annular steam jet pipe 141 drives the plurality of steam spray heads 13 to realize the rotating dynamic spraying of the steam.

[0072] 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 can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which 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: Coal pyrolysis furnace body (1), the side of the coal pyrolysis furnace body (1) is provided with a raw gas collecting pipeline, the top surface of the coal pyrolysis furnace body (1) is fixed with a dust collecting port (2), and the top end of the dust collecting port (2) is connected with a fan; The furnace top bin (3) is fixed inside the top end of the coal pyrolysis furnace 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 fixed with a tank cover (4), the top surface of the tank cover (4) is fixed 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 to the front of the coal inlet of the furnace top bin (3), one end of the square inclined pipe (5) away from the furnace top bin (3) is fixed with a square cover (6), and the top surface of the square inclined pipe (5) is fixed with a hopper (7); the square inclined pipe (5) is internally provided with a coal conveying mechanism (8); The pipeline (10) is fixed to the top surface of the tank cover (4), the top surface of the tank cover (4) is fixedly provided 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, the top end of the pipeline (10) is rotatably sleeved with a steam supply pipeline, and one end of the steam supply pipeline away from the pipeline (10) is in communication with a nitrogen steam source; The rotary spraying device (14) is used for scraping off water droplets on the tank cover (4); the bottom surface of the rotary spraying device (14) is provided with a 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 rotary spraying device (14) comprises an annular steam jet pipe (141), the annular steam jet pipe (141) is fixed to the outer wall of the pipeline (10), and an electric control valve (12) is arranged at the connection between the annular steam jet pipe (141) and the pipeline (10); the electric control valve (12) is used for adjusting the communication state between the pipeline (10) and the annular steam jet pipe (141), a plurality of steam nozzles (13) are installed at the bottom of the annular steam jet pipe (141), and the electric control valve (12) and the temperature sensor (11) are wirelessly connected; The annular steam jet pipe (141) is fixed with two vertical rods (142), and the rotary spraying device (14) further comprises; The concave block (143) is fixed at the top end of the vertical rod (142), and the inner wall of the concave block (143) is fixed with a chamfered plate (144), and the chamfered plate (144) is used for scraping off water droplets on the tank cover (4); The adapter ring (145) is fixed on one side of the two chamfered plates (144) close to each other, the adapter ring (145) is sleeved on the pipeline (10), and the adapter ring (145) is used for supporting the two chamfered plates (144); When the annular steam nozzle (141) rotates, the vertical rod (142) rotates in a forward direction, the vertical rod (142) drives the concave block (143) to rotate in a forward direction, the concave block (143) drives the chamfered plate (144) to rotate in a forward direction, the chamfered plate (144) drives the adapter ring (145) to rotate in a forward direction, the adapter 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 rotating process.

2. The coal feeding device of the coal pyrolysis furnace according to claim 1, characterized in that: The coal conveying mechanism (8) comprises a circular roller, a conveying belt and a motor, the circular 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 circular roller, and the motor is fixed on the right bottom of the square inclined pipe (5).

3. The coal feeding device of the coal pyrolysis furnace according to claim 2, characterized in that: 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).

4. The coal feeding device of the coal pyrolysis furnace according to claim 3, characterized in that: A T-shaped pipe (146) is fixed on the outer wall of the top of the vertical rod (142), a strip shell (147) is fixed on 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), a top inclined pipe (148) is fixed in the middle of the bottom surface of the strip shell (147), the inner wall of the top inclined pipe (148) is fixed on the pipeline (10), and the top inclined pipe (148) is used for supporting the strip shell (147).

5. The coal feeding device of the coal pyrolysis furnace according to claim 4, characterized in that: The coal sweeping device (15) comprises: A back-shaped frame (151) is fixed on the bottom surface of the strip shell (147), two back-shaped frames (152) are fixed on the outer wall of the back-shaped frame (151), and the back-shaped frames (152) are in an eight-character shape. Vertical concave plates (153) are fixed on one side of the back-shaped frames (152) away from the back-shaped frame (151), an inner wall of each vertical concave plate (153) is fixed with a sheet plate (154), 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 raw coal from the coal inlet of the furnace top bin (3).

6. The coal feeding device of a coal pyrolysis furnace according to claim 5, characterized in that: An inner wall of the back-shaped frame (151) is fixed with two adapter blocks (155), and the adapter blocks (155) are fixed with stirring plates (156) on one side close to each other.

7. A method for using the coal feeding device of the coal pyrolysis furnace, characterized in that the coal feeding device of the coal pyrolysis furnace according to claim 6 is used. The method comprises 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 raw coal into the hopper (7), the raw coal falls onto the conveying belt of the coal conveying mechanism (8), the conveying belt drives the raw coal to move backward, and the raw coal enters the furnace top bin (3); S3, the operator starts the motor, the motor drives the circular roller to rotate, the circular roller drives the conveying belt to rotate, 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℃, the temperature sensor (11) controls the electric control valve (12) to open through wireless signal, the nitrogen steam source transmits steam to the annular steam jet pipe (141) through the steam supply pipeline, pipeline (10) and the steam is sprayed to the raw coal through the steam jet (13); S4, when spraying, start the servo motor, the servo motor output shaft drives the pipeline (10) to rotate, the pipeline (10) drives the annular steam jet pipe (141) to rotate, the annular steam jet pipe (141) drives multiple steam jet (13) to realize the rotation of steam dynamic injection.

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