Carbonization coke oven capable of adjusting pressure of carbonization chamber and adjusting method thereof

Abstract

The invention relates to the technical field of coking, in particular to a carbonization coke oven capable of adjusting the pressure of carbonization chambers and an adjusting method thereof.According to the carbonization coke oven capable of adjusting the pressure of the carbonization chambers, an oven top heat dissipation layer is arranged over each carbonization chamber, a channel is arranged between every two adjacent carbonization chambers, and the channels are arranged over combustion chambers; a plurality of channels are uniformly formed in the top of the carbonization chamber. By arranging a group of channels between every two carbonization chambers and arranging rotating baffles in the channels, the environment-friendly effect is improved, the phenomenon that the furnace wall between the carbonization chambers and the combustion chamber is cracked due to high temperature and high pressure is prevented, and by arranging a furnace top heat dissipation layer and an air cannon, coking caused by over-high temperature of the furnace top is prevented; the problem of cracking caused by over-high temperature of the coal feeding pipeline and the ascending pipe is prevented, the service life of the coal feeding pipeline and the ascending pipe is prolonged, the coal feeding pipeline and the ascending pipe are protected through the arrangement of the steam pipe, waste heat can be recycled, and the energy utilization rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of coking, in particular to a carbonization coke oven capable of adjusting the pressure of a carbonization chamber and a regulating method thereof. Background Art

[0002] A carbonization coke oven is an industrial furnace used to produce coke by dry distilling (carbonizing) coal under high-temperature, oxygen-deficient conditions. It is primarily used in the metallurgical and chemical industries. The basic operating principle of a carbonization coke oven is dry distillation. Coal is heated in an airless environment (typically to 900–1100°C), which releases volatile substances (such as coal gas and tar), leaving the remaining solids as coke. The top of a modern coke oven is the roof. Below the roof are alternating combustion and carbonization chambers. The lower part of the furnace consists of a regenerator and a chute connecting the regenerator and combustion chambers. A small flue beneath each regenerator is connected to the flue via an exchanger. The flue is located within or on either side of the coke oven foundation and terminates in a chimney. Therefore, a coke oven consists of three chambers and two zones: the carbonization chamber, the combustion chamber, the regenerator, the chute, the roof, and the foundation. The combustion chambers, located on either side of the carbonization chamber, consist of multiple vertical flues. The regenerator is located at the lower part of the furnace body and is divided into an air regenerator and a gas regenerator.

[0003] When the carbonization chamber of the existing top-loaded carbonization coke oven is loaded with coal, the coal squeezes the high-temperature gas in the carbonization chamber, causing the pressure in the carbonization chamber to rise instantly. A large amount of gas can only be introduced into the gas collecting pipe through the machine-side riser. Since there is no outlet device on the coke side, the pressure on the coke side rises instantly, several times or even dozens of times higher than that during normal production, causing a large amount of fine coal powder and carbon dust after the fine coal powder is carbonized at high temperature to emerge through the coal feeding hole along with the squeezed gas, which has an impact on the environmental protection.

[0004] In addition, due to the high temperature of the carbonization chamber of the existing carbonization coke oven, graphite will form on the inner top wall of the carbonization chamber, affecting the use of the carbonization chamber. When top loading coal, coal powder will stick to the inner wall of the coal loading hole, which is difficult to remove in time. The coal powder will produce tar when heated and adhere to the inner wall of the coal loading hole, which in turn affects the environmental protection. If it is not cleaned in time for a long time, it is easy to cause agglomeration, resulting in reduced coal loading efficiency and uneven coal loading.

[0005] In addition, the riser installed on the side of the carbonization chamber is connected to the carbonization chamber, so the temperature of the riser is relatively high, which is prone to high-temperature corrosion. The refractory lining needs to be checked regularly to prevent cracking that may cause gas leakage, which is inconvenient to use. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a carbonization coke oven with adjustable carbonization chamber pressure and an adjustment method thereof, which can adjust the pressure generated during coal loading, reduce the escape of coal powder and carbon powder, improve environmental protection effects, prevent tar condensation on the inner wall of the coal loading hole, reduce the difficulty of cleaning the carbonization chamber, and prevent high temperature corrosion of the riser due to high temperature, thereby increasing the service life of the riser.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a carbonization coke oven with adjustable carbonization chamber pressure, comprising a coke oven main body, a carbonization chamber and a combustion chamber disposed inside the coke oven main body, wherein a double fire channel is disposed inside the combustion chamber, an air inlet and a smoke exhaust hole are disposed at the bottom of the double fire channel, and a fire viewing hole is disposed at the top of the combustion chamber, the fire viewing hole penetrating the top of the coke oven main body, and a rotating sealing cover is installed on the top of the fire viewing hole;

[0008] The carbonization chamber and the combustion chamber are arranged alternately. The height of the carbonization chamber is higher than that of the combustion chamber. Furnace doors are installed on both sides of the carbonization chamber. A coal inlet pipe is installed on the top of the carbonization chamber. The top of the coal inlet pipe is set on the top of the coke oven body. A riser is set on the top of the carbonization chamber near the machine side.

[0009] Preferably, a plurality of evenly arranged coal feed pipes are installed on the top of each carbonization chamber, a rotating cover is installed on the top outer wall of the coal feed pipe, the rotating part of the rotating cover is connected to the first transmission shaft, and the end of the first transmission shaft is connected to the first motor.

[0010] Preferably, multiple furnace top heat dissipation layers are provided inside the coke oven body, and the furnace top heat dissipation layer is provided directly above each carbonization chamber. The coal inlet pipe is plugged into the interior of the furnace top heat dissipation layer, and a water injection pipe is installed on the inner wall of the end of the furnace top heat dissipation layer. The water injection pipe is installed on the top of the furnace door, and a steam pipe is provided at the center of the furnace top heat dissipation layer.

[0011] Preferably, a plurality of fire-watching holes are provided, and the fire-watching holes are at the top of the double vertical fire channels, and the number of the fire-watching holes corresponds one to one to the number of the vertical fire channels.

[0012] Preferably, a slot is provided at the top of the fire viewing hole, a rotating sealing cover is inserted into the slot, the slot is stepped, an annular groove is provided inside the slot, two groups of symmetrically distributed sockets are provided on the top of the annular groove, the rotating sealing cover is adapted to the slot, an insert block is provided at the top edge of the rotating sealing cover, the insert block is adapted to the socket, a handle is provided on the top of the rotating sealing cover, and the material of the rotating sealing cover is high temperature resistant material.

[0013] Preferably, a channel is provided between every two adjacent carbonization chambers, and the channel is provided directly above the combustion chamber. Multiple channels are evenly arranged on the top of the carbonization chamber, and a rotating baffle is provided at the center of the channel. A rotating gap is provided between the edge of the rotating baffle and the inner wall of the channel, and a transmission mechanism is provided on the rotating baffle. The transmission mechanism consists of a second motor and a second motor, and the second motor is installed on the outer wall of the machine side of the coke oven body. The output end of the second motor is connected to the second transmission shaft, and the second transmission shaft is connected to the rotating baffle.

[0014] Preferably, a channel cleaning mechanism is installed on the inner wall of the channel, and the channel cleaning mechanism consists of a slide rail and a cleaning scraper frame sliding on the slide rail. There are multiple groups of slide rails, and a slide groove is provided inside the slide rail, and an abutment spring is provided inside the slide groove. A fixed block is provided at the bottom of the cleaning scraper frame, and the fixed block is provided inside the slide groove and is slidably connected to the slide groove. One end of the abutment spring is fixedly connected to the inside of the slide rail, and the other end is fixedly connected to the fixed block. A filter is provided inside the cleaning scraper frame, and the outer wall of the cleaning scraper frame fits the inner wall of the channel.

[0015] Preferably, the bottom of the rotating baffle is arc-shaped, and frosted protrusions are provided on the outer surface of the bottom of the rotating baffle. There are two groups of channel cleaning mechanisms, which are symmetrically distributed on both sides of the rotating baffle. Grooves are provided on the top walls of the channels on both sides of the rotating baffle, and air pressure sensors are provided inside the grooves. The channel cleaning mechanism, air pressure sensor and rotating baffle are all high-temperature resistant.

[0016] Preferably, an air cannon is provided on the top of the coke oven body, the air inlet end of the air cannon is connected to the steam pipe, a plurality of air guide pipes are provided on the exhaust end of the air cannon, a plurality of branch pipes are provided on the air guide pipe, a solenoid valve is provided on the air guide pipe, a high-pressure nozzle is provided on the inner wall of the coal inlet pipe, the branch pipe is connected to the high-pressure nozzle of the coal inlet pipe, and the connection is one-to-one.

[0017] Preferably, a method for adjusting the pressure of the carbonization chamber comprises the following steps:

[0018] S1: Coke loading: The coal loading car moves to the top of the designated carbonization chamber, starts the first motor, opens the rotating cover of the coal inlet pipe, and then unloads the coal from the coal tower into the carbonization chamber by gravity or a screw feeder. After the coke loading is completed, the rotating cover is closed again;

[0019] S2: Pressure Generation: During the coke loading process, since only one side of the carbonization chamber is equipped with an exhaust riser, and the coke side is not equipped with an exhaust mechanism, the pressure on the coke side will rise instantly, causing coal powder and carbon powder to be discharged from the coal inlet pipe, affecting the external environment.

[0020] S3: Regulating pressure: In normal production, when a carbonization chamber is pushing coke or loading coal, the adjacent carbonization chamber is in the concentrated stage and in an expanded state, which can effectively support the squeezing of the furnace wall during pushing coke and loading coal, protect the furnace wall, and reduce the amount of coal gas generated accordingly, making it uniform and stable. Therefore, when the pressure generated in the carbonization chamber suddenly increases, the air pressure sensor located on one side of the carbonization chamber inside the channel will sense the pressure change signal, and then transmit the signal and start the rotating baffle to rotate in the direction close to the carbonization chamber, so that the channel is connected and the pressure of the carbonization chamber is introduced into the adjacent carbonization chamber to share the pressure and prevent the escape of coal powder and carbon powder.

[0021] S4: Cleaning channel: During the pressure adjustment process, when the rotating baffle rotates, the cleaning scraper frame on one side of the rotating baffle is automatically pushed to move inside the channel. Since the cleaning scraper frame abuts against the inner wall of the channel, the coal powder and carbon powder stuck on the inner wall of the channel will be cleaned during the movement of the cleaning scraper frame. After the pressure is adjusted, the rotating baffle is reset. (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides a carbonization coke oven with adjustable carbonization chamber pressure and a method for adjusting the same, which has the following beneficial effects:

[0023] 1. The carbonization coke oven with adjustable carbonization chamber pressure and the adjustment method thereof, by providing a set of channels between every two carbonization chambers and a rotating baffle inside the channels, can share the instantaneous high pressure generated by coal loading through adjacent carbonization chambers during coal loading, thereby preventing coal powder and charcoal powder from being discharged from the coal inlet pipe, improving the environmental protection effect and preventing the furnace wall between the carbonization chamber and the combustion chamber from being cracked due to high temperature and high pressure.

[0024] 2. The carbonization coke oven with adjustable carbonization chamber pressure and the adjustment method thereof, through the setting of the furnace top heat dissipation layer and the air cannon, the furnace top heat dissipation layer can cool the top of the carbonization chamber, generally controlling the temperature at (800 ℃ -850 ℃), to prevent the furnace top temperature from being too high and coking, and the high-temperature and high-pressure steam generated is discharged from the inner wall of the coal inlet pipe through the air cannon and the air guide pipe, thereby cleaning the coal inlet pipe and preventing the occurrence of coal loading blockage.

[0025] 3. The carbonization coke oven with adjustable carbonization chamber pressure and the adjustment method thereof, through the setting of the furnace top heat dissipation layer, can cool the coal inlet pipe and the riser during use, thereby preventing the coal inlet pipe and the riser from cracking due to excessive temperature, and improving the service life of the coal inlet pipe and the riser. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the three-dimensional structure of the coke oven body of the present invention;

[0027] Figure 2 Schematic diagram of the stepped cross-sectional structure of the carbonization chamber and the combustion chamber of the present invention;

[0028] Figure 3 It is a schematic side cross-sectional structural diagram of the carbonization chamber of the present invention;

[0029] Figure 4 It is a schematic side cross-sectional structural diagram of the combustion chamber of the present invention;

[0030] Figure 5 Schematic diagram of the cross-sectional structure of the channel of the present invention;

[0031] Figure 6 Schematic diagram of the three-dimensional structure of the channel cleaning mechanism of the present invention;

[0032] Figure 7 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0033] Figure 8 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle part B;

[0034] Figure 9 This is a schematic diagram of the installation structure of the rotating sealing cover and the fire viewing hole of the present invention;

[0035] Figure 10 This is a schematic side sectional structural diagram of the cleaning scraper frame and the slide rail of the present invention.

[0036] In the figure: 1. Coke oven body; 2. Carbonization chamber; 3. Combustion chamber; 4. Double fire channel; 5. Air inlet; 6. Smoke exhaust hole; 7. Fire viewing hole; 701. Slot; 8. Rotating sealing cover; 801. Outer flange; 9. Coal inlet pipe; 10. Rotating cover; 11. First motor; 12. First transmission shaft; 13. Furnace top heat dissipation layer; 14. Water injection pipe; 15. Steam pipe; 16. Air cannon; 17. Air guide pipe; 18. Solenoid valve; 19. High-pressure nozzle; 20. Riser; 21. Furnace door; 22. Passage; 23. Second motor; 24. Rotating baffle; 25. Slide rail; 26. Abutment spring; 27. Cleaning scraper frame; 28. Filter; 29. ​​Frosted protrusion; 30. Air pressure sensor; 31. Second transmission shaft. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] For an embodiment of the present invention, please refer to Figures 1 to 4 When loading coke in an existing carbonization coke oven, the top loading is generally performed from the coal loading hole on the top of the carbonization chamber 2. Conventional top loading requires manual opening of the cover of the coal loading hole, which is troublesome to operate and has certain risks. Therefore, a carbonization coke oven with adjustable carbonization chamber pressure is provided, comprising a coke oven main body 1 and a carbonization chamber 2 and a combustion chamber 3 arranged inside the coke oven main body 1. A double fire channel 4 is provided inside the combustion chamber 3, and an air inlet 5 and a smoke exhaust hole 6 are provided at the bottom of the double fire channel 4. A fire viewing hole 7 is provided on the top of the combustion chamber 3, and the fire viewing hole 7 passes through the top of the coke oven main body 1.

[0039] The carbonization chamber 2 and the combustion chamber 3 are arranged alternately. The height of the carbonization chamber 2 is higher than that of the combustion chamber 3. Furnace doors 21 are respectively installed on both sides of the carbonization chamber 2. A coal inlet pipe 9 is installed on the top of the carbonization chamber 2. The top of the coal inlet pipe 9 is set at the top of the coke oven body 1. A riser 20 is set at the top of the carbonization chamber 2 near the machine side.

[0040] A plurality of evenly arranged coal feeding pipes 9 are installed on the top of each carbonization chamber 2, and a rotating cover plate 10 is installed on the top outer wall of the coal feeding pipe 9. The rotating part of the rotating cover plate 10 is transmission-connected to the first transmission shaft 12, and the end of the first transmission shaft 12 is transmission-connected to the first motor 11.

[0041] Working process: When loading coke, the coal tower is transported to the top of the carbonization chamber 2 where coal needs to be loaded by using a coal loading car, and then the first motor 11 is started. The first motor 11 drives the rotating cover 10 to rotate, so that the rotating cover 10 on all the coal inlet pipes 9 on this carbonization chamber 2 is opened, and then the coal is unloaded from the coal tower into the carbonization chamber 2 by gravity or a screw feeder aligned with the coal inlet pipe 9. This process uses multiple coal towers to load multiple coal inlet pipes 9 at the same time, so that the coal material inside the carbonization chamber 2 is evenly distributed, avoiding uneven shrinkage during coking and causing difficulty in pushing coke. After the coal loading is completed, the first motor 11 is started in reverse to make the rotating cover 10 re-cover the top of the coal inlet pipe 9 to prevent air from entering or gas leakage.

[0042] Every two vertical flues in the combustion chamber 3 form a pair of dual vertical flues 4 (referred to as an ascending flue and a descending flue, respectively), which carry ascending and descending airflows, respectively. Each pair of dual vertical flues 4 is provided with a crossover hole at the top and an exhaust gas circulation hole at the bottom, interconnecting the two vertical flues. Combustion-supporting air and coal gas entering the vertical flues from the bottom of the vertical flues form an ascending airflow after diffusion combustion. The ascending airflow enters the descending flue through the crossover hole and becomes a descending airflow. The descending airflow enters the ascending airflow through the exhaust gas circulation hole at the bottom of the flue, participating in the circulation. The air intake and exhaust directions of the dual vertical flues 4 are changed every half cycle, so that the original air intake vertical flue becomes a smoke exhaust vertical flue, and the original smoke exhaust vertical flue becomes an air intake vertical flue.

[0043] During coking, coal gas is burned in the combustion chamber 3 to heat the inner wall of the combustion chamber 3, and the heat is transferred to the inner wall of the carbonization chamber 2 to dry distill the coal inside the carbonization chamber 2, thereby converting the coal into coke. Coke oven gas is produced during the dry distillation process, and the coke oven gas is discharged and purified through the riser 20.

[0044] After coking, the coke is discharged through a coke pusher and then cooled by a coke quenching car.

[0045] The invention has the following effects: the first motor 11 is used to drive the rotating cover plate 10 to drive the multiple coal feeding pipes 9 to open at the same time, thereby reducing the labor intensity and danger of manually opening the coal feeding pipes 9. In addition, the multiple coal feeding pipes 9 are evenly distributed, which can ensure uniform coal loading and avoid the phenomenon of difficulty in pushing coke due to uneven shrinkage during coking.

[0046] For an embodiment of the present invention, please refer to Figure 9 When observing the combustion situation of the combustion chamber 3 from the fire-watching hole 7, the top cover of the fire-watching hole 7 is also manually opened for observation. However, the top cover of the conventional fire-watching hole 7 is easily lifted up due to the high combustion temperature of the combustion chamber 3 and the high internal air pressure, thereby causing heat loss. Therefore, a carbonization coke oven with adjustable carbonization chamber pressure is provided. A rotating sealing cover 8 is installed on the top of the fire-watching hole 7. There are multiple fire-watching holes 7, and the fire-watching holes 7 are at the top of the double vertical fire channels 4. The number of the fire-watching holes 7 corresponds to the number of the vertical fire channels.

[0047] A slot 701 is provided at the top of the fire viewing hole 7, and a rotating sealing cover 8 is inserted into the slot 701. The slot 701 is stepped, and an annular groove is provided inside the slot 701. Two groups of symmetrically distributed sockets are provided on the top of the annular groove. The rotating sealing cover 8 is adapted to the slot 701, and an insert block is provided at the top edge of the rotating sealing cover 8, which is adapted to the socket. A handle is provided on the top of the rotating sealing cover 8, and the material of the rotating sealing cover 8 is high-temperature resistant material.

[0048] Working process: When watching the fire, the operator rotates the handle on the rotating sealing cover 8 to align the outer flange 801 on the rotating sealing cover 8 with the slot 701 on the top of the fire watching hole 7. At this time, the rotating sealing cover 8 can be pulled out, and then the operator puts on goggles and looks inside the fire watching hole 7 to observe the combustion conditions in the vertical fire channel below the fire watching hole 7, and then adjusts it. After observation, it is necessary to immediately cover the rotating sealing cover 8 on the fire watching hole 7 so that the outer flange 801 is inserted into the slot 701, and rotate the rotating sealing cover 8 so that the outer flange 801 is misaligned with the slot 701, and limit the rotating sealing cover 8 to prevent the rotating sealing cover 8 from being pushed open.

[0049] Effect: By rotating the sealing cover 8 and the fire viewing hole 7, the fire viewing hole 7 can be well sealed to prevent the waste heat generated by the combustion chamber 3 from being discharged from the fire viewing hole 7, thereby improving the environmental protection effect, and effectively preventing heat loss, thereby improving the coking efficiency of the carbonization chamber 2.

[0050] For an embodiment of the present invention, please refer to Figure 2 and Figure 7 The carbonization chamber of the existing carbonization coke oven has a high temperature, and graphite will form on the inner top wall of the carbonization chamber, affecting the use of the carbonization chamber. In addition, when loading coal from the top, coal powder will stick to the inner wall of the coal loading hole, which is difficult to remove in time. The coal powder will produce tar when heated and adhere to the inner wall of the coal loading hole, which will affect the environmental protection. If it is not cleaned in time for a long time, it is easy to cause agglomeration, resulting in a decrease in coal loading efficiency and uneven coal loading. In addition, the riser installed on the side of the carbonization chamber is connected to the carbonization chamber, so the temperature of the riser is relatively high. , which is prone to high-temperature corrosion and requires regular inspection of the refractory lining to prevent cracking that leads to gas leakage, which is inconvenient to use. Therefore, a carbonization coke oven with adjustable carbonization chamber pressure is provided. A plurality of furnace top heat dissipation layers 13 are arranged inside the coke oven main body 1. The furnace top heat dissipation layer 13 is arranged directly above each carbonization chamber 2. The coal inlet pipe 9 is plugged into the interior of the furnace top heat dissipation layer 13. A water injection pipe 14 is installed on the inner wall of the end of the furnace top heat dissipation layer 13. The water injection pipe 14 is installed on the top of the furnace door 21. A steam pipe 15 is provided at the center of the furnace top heat dissipation layer 13.

[0051] An air cannon 16 is provided on the top of the coke oven body 1. The air inlet end of the air cannon 16 is connected to the steam pipe 15. A plurality of air guide pipes 17 are provided on the exhaust end of the air cannon 16. A plurality of diversion pipes are provided on the air guide pipe 17. A solenoid valve 18 is provided on the air guide pipe 17. A high-pressure nozzle 19 is provided on the inner wall of the coal inlet pipe 9. The diversion pipe is connected to the high-pressure nozzle 19 of the coal inlet pipe 9 and corresponds one to one.

[0052] Working process: water is injected into the furnace top heat dissipation layer 13 through the water injection pipe 14, and then the furnace top of the carbonization chamber 2 is cooled through the furnace top heat dissipation layer 13, and the coal inlet pipe 9 and the riser 20 are cooled. The furnace top heat dissipation layer 13 will produce steam, and the high-temperature high-end steam is introduced to the outside through the steam pipe 15, which can utilize the steam resources and achieve the effect of waste heat recovery. In addition, the steam pipe 15 can also be connected to the air cannon 16, and a valve is provided at the connection point. The outside of the steam pipe 15 is wrapped with an insulation layer to prevent heat loss. Before loading coal, By opening the air cannon 16 and the valve between the steam pipe 15 and the air cannon 16, the air cannon 16 is connected to the steam pipe 15, and the high-temperature and high-pressure air is discharged through the air guide pipe 17 on the air cannon 16. The solenoid valve 18 on the air guide pipe 17 installed on the side of the coal inlet pipe 9 where coal needs to be loaded is opened, and high-pressure and high-temperature steam is ejected through the high-pressure nozzle 19 on the inner wall of the coal inlet pipe 9 to clear the coal powder and charcoal powder on the inner wall of the coal inlet pipe 9, thereby preventing the coal powder on the pipe wall from being affected by the rising hot air and spraying outward when the coal inlet pipe 9 is opened, thereby improving the environmental protection effect.

[0053] Effect: The temperature of the furnace top and the inner wall of the coal inlet pipe 9 and the riser 20 is controlled at about 850 degrees, preventing high temperature from causing coal gas tar to adhere to the inner wall of the pipe, affecting the normal use of the pipe, and reducing the impact of high temperature on the coal inlet pipe 9 and the riser 20, preventing the inner wall of the coal inlet pipe 9 and the riser 20 from cracking, and increasing the service life of the coal inlet pipe 9 and the riser 20.

[0054] For an embodiment of the present invention, please refer to Figures 5 to 10 When the carbonization chamber of the top-loading carbonization coke oven is loaded with coal, the coal squeezes the high-temperature gas in the carbonization chamber, causing the pressure in the carbonization chamber to rise instantly. A large amount of gas can only be introduced into the gas collecting pipe through the machine side riser; since there is no outlet device on the coke side, the pressure on the coke side rises instantly, several times or even dozens of times higher than that during normal production, resulting in a large amount of fine coal powder and carbon dust after the fine coal powder is carbonized at high temperature emitting through the coal feeding hole along with the squeezed gas, causing an impact on the environmental protection. Therefore, a carbonization coke oven with adjustable carbonization chamber pressure and its adjustment method are provided, and a vent is set between each two adjacent carbonization chambers 2. Channel 22, channel 22 is arranged just above the combustion chamber 3, and multiple channels 22 are evenly arranged on the top of the carbonization chamber 2. A rotating baffle 24 is provided at the center of the channel 22, and a rotating gap is provided between the edge of the rotating baffle 24 and the inner wall of the channel 22. A transmission mechanism is provided on the rotating baffle 24, and the transmission mechanism consists of a second motor 23 and a second motor 23. The second motor 23 is installed on the outer wall of the machine side of the coke oven body 1, and the output end of the second motor 23 is connected to the second transmission shaft 31 for transmission, and the second transmission shaft 31 is connected to the rotating baffle 24 for transmission.

[0055] A channel cleaning mechanism is installed on the inner wall of the channel 22. The channel cleaning mechanism consists of a slide rail 25 and a cleaning scraper frame 27 sliding on the slide rail 25. There are multiple groups of slide rails 25, and a slide groove is opened inside the slide rail 25. An abutment spring 26 is provided inside the slide groove. A fixed block is provided at the bottom of the cleaning scraper frame 27. The fixed block is provided inside the slide groove and is slidably connected to the slide groove. One end of the abutment spring 26 is fixedly connected to the inside of the slide rail 25, and the other end is fixedly connected to the fixed block. A filter screen 28 is provided inside the cleaning scraper frame 27, and the outer wall of the cleaning scraper frame 27 fits the inner wall of the channel 22.

[0056] The bottom of the rotating baffle 24 is arc-shaped, and a frosted protrusion 29 is provided on the outer surface of the bottom of the rotating baffle 24. There are two groups of channel cleaning mechanisms, which are symmetrically distributed on both sides of the rotating baffle 24. Grooves are provided on the inner top walls of the channels 22 on both sides of the rotating baffle 24. An air pressure sensor 30 is provided inside the groove. The channel cleaning mechanism, the air pressure sensor 30 and the rotating baffle 24 are all high-temperature resistant.

[0057] Working process: During the coke loading process, since the carbonization chamber 2 is only provided with a riser 20 for exhausting to the outside on the machine side, and no exhaust mechanism is provided on the coke side, the pressure on the coke side will increase instantly, causing coal powder and carbon powder to be discharged from the coal inlet pipe 9, affecting the external environment.

[0058] In conventional production, when a carbonization chamber 2 is pushing coke and loading coal, the adjacent carbonization chamber 2 is in the concentrated stage and in an expanded state, which can effectively support the squeezing of the furnace wall during pushing coke and loading coal, protect the furnace wall, and reduce the amount of coal gas generated accordingly, making it uniform and stable. Therefore, when the pressure generated in the carbonization chamber 2 loaded with coal suddenly increases, the air pressure sensor 30 located on one side of the carbonization chamber 2 inside the channel 22 will sense the pressure change signal, and then transmit the signal to the remote terminal. The central controller of the remote terminal automatically controls the start of the rotating baffle 24, so that the rotating baffle 24 rotates in the direction close to this carbonization chamber 2, so that the channel 22 is connected, and the pressure of this carbonization chamber 2 is introduced into the adjacent carbonization chamber 2 to share the pressure and prevent the escape of coal powder and carbon powder.

[0059] The carbonization chamber 2 needs to clean the carbon powder, tar and other impurities on the inner wall every once in a while to prevent the thermal conductivity from decreasing. Since the channel 22 is located at a higher position and is embedded, it is difficult to clean it manually, and the channel 22 is set horizontally, the internal coal powder and carbon powder are more likely to accumulate and need to be cleaned frequently. Therefore, a channel cleaning mechanism is set inside the channel 22. During the pressure adjustment process, when the rotating baffle 24 rotates, the cleaning scraper frame 27 on one side of the rotating baffle 24 is automatically pushed to move inside the channel 22. Since the cleaning scraper frame 27 is in contact with the inner wall of the channel 22, the coal powder and carbon powder stuck on the inner wall of the channel 22 will be cleaned during the movement of the cleaning scraper frame 27. After the pressure is adjusted, the rotating baffle 24 is reset.

[0060] In addition, in order to prevent charcoal powder and coal powder from entering another carbonization chamber 2 when the channel 22 is opened during coal loading, a filter screen 28 is installed on the cleaning scraper frame 27 to block the coal powder and charcoal powder. When the rotating baffle 24 rotates, a frosted protrusion 29 is provided at the bottom of the rotating baffle 24, and the frosted protrusion 29 will abut against the filter screen 28 with the rotating baffle 24 and slide on the filter screen 28. At this time, the coal powder and charcoal powder on the filter screen 28 can be cleaned to prevent the filter screen 28 from being blocked and affecting the pressure regulation effect.

[0061] Effect: By setting up the channel 22 and the rotating baffle 24, the other carbonization chamber 2 can be connected, which can share the pressure when loading coal, prevent coal powder and carbon powder from escaping, and improve environmental protection effects. The channel cleaning mechanism can automatically clean the channel 22 without manual operation, which is simple and convenient.

[0062] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A carbonization coke oven with adjustable carbonization chamber pressure, comprising a coke oven body (1), a carbonization chamber (2) and a combustion chamber (3) arranged inside the coke oven body (1), characterized in that: A double fire channel (4) is provided inside the combustion chamber (3), an air inlet (5) and a smoke exhaust hole (6) are provided at the bottom of the double fire channel (4), a fire viewing hole (7) is provided at the top of the combustion chamber (3), the fire viewing hole (7) passes through the top of the coke oven body (1), and a rotating sealing cover (8) is installed at the top of the fire viewing hole (7); The carbonization chamber (2) and the combustion chamber (3) are arranged in an interlaced manner. The height of the carbonization chamber (2) is higher than that of the combustion chamber (3). Furnace doors (21) are respectively installed on both sides of the carbonization chamber (2). A coal inlet pipe (9) is installed on the top of the carbonization chamber (2). The top of the coal inlet pipe (9) is arranged on the top of the coke oven body (1). A rising pipe (20) is arranged on the top of the carbonization chamber (2) near the machine side.

2. A carbonization coke oven with adjustable carbonization chamber pressure according to claim 1, characterized in that: A plurality of evenly arranged coal feeding pipes (9) are installed on the top of each carbonization chamber (2), a rotating cover plate (10) is installed on the top outer wall of the coal feeding pipe (9), a first transmission shaft (12) is connected to the rotating part of the rotating cover plate (10), and a first motor (11) is connected to the end of the first transmission shaft (12).

3. A carbonization coke oven with adjustable carbonization chamber pressure according to claim 2, characterized in that: A plurality of furnace top heat dissipation layers (13) are provided inside the coke oven body (1). The furnace top heat dissipation layer (13) is provided directly above each carbonization chamber (2). A coal inlet pipe (9) is plugged into the furnace top heat dissipation layer (13). A water injection pipe (14) is installed on the inner wall of the end of the furnace top heat dissipation layer (13). The water injection pipe (14) is installed on the top of the furnace door (21). A steam pipe (15) is provided at the center of the furnace top heat dissipation layer (13).

4. A carbonization coke oven with adjustable carbonization chamber pressure according to claim 3, characterized in that: A plurality of fire viewing holes (7) are provided, and the fire viewing holes (7) are located at the top of the double vertical fire channels (4), and the number of the fire viewing holes (7) corresponds to the number of the vertical fire channels.

5. A carbonization coke oven with adjustable carbonization chamber pressure according to claim 4, characterized in that: The top of the fire viewing hole (7) is provided with a slot (701), a rotating sealing cover (8) is inserted into the slot (701), the slot (701) is arranged in a stepped shape, an annular groove is arranged inside the slot (701), two groups of symmetrically distributed jacks are arranged on the top of the annular groove, the rotating sealing cover (8) is adapted to the slot (701), an insert block is provided at the top edge of the rotating sealing cover (8), the insert block is adapted to the jack, a handle is provided on the top of the rotating sealing cover (8), and the material of the rotating sealing cover (8) is a high-temperature resistant material.

6. The carbonization coke oven with adjustable carbonization chamber pressure according to claim 1, characterized in that: A channel (22) is provided between every two adjacent carbonization chambers (2). The channel (22) is provided just above the combustion chamber (3). A plurality of channels (22) are evenly provided on the top of the carbonization chamber (2). A rotating baffle (24) is provided at the center of the channel (22). A rotating gap is provided between the edge of the rotating baffle (24) and the inner wall of the channel (22). A transmission mechanism is provided on the rotating baffle (24). The transmission mechanism consists of a second motor (23) and a second motor (23). The second motor (23) is installed on the outer wall of the machine side of the coke oven body (1). The output end of the second motor (23) is connected to the second transmission shaft (31) in a transmission connection. The second transmission shaft (31) is connected to the rotating baffle (24) in a transmission connection.

7. A carbonization coke oven with adjustable carbonization chamber pressure according to claim 6, characterized in that: A channel cleaning mechanism is installed on the inner wall of the channel (22), and the channel cleaning mechanism consists of a slide rail (25) and a cleaning scraper frame (27) sliding on the slide rail (25). The slide rail (25) is provided with multiple groups, and a slide groove is provided inside the slide rail (25). An abutting spring (26) is provided inside the slide groove. A fixed block is provided at the bottom of the cleaning scraper frame (27). The fixed block is provided inside the slide groove and is slidably connected to the slide groove. One end of the abutting spring (26) is fixedly connected to the inside of the slide rail (25), and the other end is fixedly connected to the fixed block. A filter screen (28) is provided inside the cleaning scraper frame (27). The outer wall of the cleaning scraper frame (27) is in contact with the inner wall of the channel (22).

8. The carbonization coke oven with adjustable carbonization chamber pressure according to claim 7, characterized in that: The bottom of the rotating baffle (24) is arranged in an arc shape, and a frosted protrusion (29) is arranged on the outer surface of the bottom of the rotating baffle (24). Two groups of channel cleaning mechanisms are arranged and symmetrically distributed on both sides of the rotating baffle (24). Grooves are opened on the top walls of the channels (22) on both sides of the rotating baffle (24). An air pressure sensor (30) is arranged inside the groove. The channel cleaning mechanism, the air pressure sensor (30) and the rotating baffle (24) are all high temperature resistant.

9. The carbonization coke oven with adjustable carbonization chamber pressure according to claim 8, characterized in that: An air cannon (16) is provided on the top of the coke oven body (1), the air inlet end of the air cannon (16) is connected to the steam pipe (15), a plurality of air guide pipes (17) are provided on the exhaust end of the air cannon (16), a plurality of diversion pipes are provided on the air guide pipe (17), a solenoid valve (18) is provided on the air guide pipe (17), a high-pressure nozzle (19) is provided on the inner wall of the coal inlet pipe (9), the diversion pipe is connected to the high-pressure nozzle (19) of the coal inlet pipe (9), and has a one-to-one correspondence.

10. The method for adjusting the pressure of a carbonization chamber according to claim 9, characterized in that: The following steps are involved: S1: Coke loading: The coal loading vehicle moves to the top of the designated carbonization chamber (2), starts the first motor (11), opens the rotating cover (10) of the coal inlet pipe (9), and then unloads the coal from the coal tower into the carbonization chamber by gravity or a screw feeder. After the coke loading is completed, the rotating cover (10) is closed again; S2: Pressure generation: During the coke loading process, since the carbonization chamber (2) is only provided with an exhaust riser (20) on the machine side, and no exhaust mechanism is provided on the coke side, the pressure on the coke side will rise instantly, causing coal powder and carbon powder to be discharged from the coal inlet pipe (9), affecting the external environment; S3: Regulating pressure: In conventional production, when a carbonization chamber (2) is pushing coke and loading coal, the adjacent carbonization chamber (2) is in the concentrated stage and in an expanded state, which can effectively support the squeezing of the furnace wall during pushing coke and loading coal, protect the furnace wall, and reduce the amount of coal gas generated accordingly, making it uniform and stable. Therefore, when the pressure generated by the carbonization chamber (2) loaded with coal suddenly increases, the air pressure sensor (30) located on one side of the carbonization chamber (2) inside the channel (22) senses the pressure change signal, then transmits the signal, and starts the rotating baffle (24), so that the rotating baffle (24) rotates in the direction close to the carbonization chamber (2), so that the channel (22) is connected, and the pressure of the carbonization chamber (2) is introduced into the adjacent carbonization chamber (2), sharing the pressure and preventing the coal powder and carbon powder from escaping; S4: Cleaning the channel (22): During the pressure adjustment process, when the rotating baffle (24) rotates, the cleaning scraper frame (27) on one side of the rotating baffle (24) is automatically pushed to move inside the channel (22). Since the cleaning scraper frame (27) abuts against the inner wall of the channel (22), the cleaning scraper frame (27) cleans the coal powder and carbon powder adhered to the inner wall of the channel (22) during the movement process. After the pressure is adjusted, the rotating baffle (24) is reset.

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