CN214299982U - System for improving dry quenching processing capacity - Google Patents
System for improving dry quenching processing capacity Download PDFInfo
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- CN214299982U CN214299982U CN202023049228.XU CN202023049228U CN214299982U CN 214299982 U CN214299982 U CN 214299982U CN 202023049228 U CN202023049228 U CN 202023049228U CN 214299982 U CN214299982 U CN 214299982U
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- pipeline
- coke
- dry quenching
- nitrogen gas
- dust removal
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Abstract
The utility model provides a system for improve dry coke quenching throughput, including bell, dust removal mouth, prestore section, dust collector, cooling zone, go up the awl fill, air intake, cross wind channel, furnace body, lower awl fill, row's burnt mouth, plate gate, hood, chute, regulating rod hole, wherein, at the downthehole pipeline of installing of regulating rod, pipeline outer end mounting flange, the flange is connected pipeline and nitrogen gas pipeline and installation nitrogen gas valve door on nitrogen gas pipeline. The utility model discloses put out the stove bottom futilely and increase nitrogen gas pipeline, simple manufacture, convenient operation. Carry out the secondary cooling to the coke that gets off from the dry quenching stove cooling zone through letting in nitrogen gas, reduce and arrange burnt temperature, improve the dry quenching coke rate, increase the thermal recovery to the coke.
Description
Technical Field
The utility model relates to a dry coke quenching technical field, concretely relates to improve system of dry coke quenching throughput.
Background
The dry quenching is an energy-saving, environment-friendly quenching process for improving the coke quality, and is a quenching method for cooling red coke by adopting inert gas in comparison with wet quenching. In the process of dry quenching, red coke is loaded from the top of a dry quenching furnace, low-temperature inert gas is blown into a red coke layer of a cooling section of the dry quenching furnace by a circulating fan to absorb the sensible heat of the red coke, the cooled coke is discharged from a lower cone hopper of the dry quenching furnace through a coke discharge port, high-temperature inert gas discharged from an annular flue of the dry quenching furnace flows through the dry quenching furnace to exchange heat, the boiler generates steam, the cooled inert gas is blown into the dry quenching furnace again by the circulating fan, and the inert gas is recycled in a closed system.
The dry quenching system has different design capabilities and different selected equipment, and the technical and economic indexes of the basic parameters of the dry quenching system have larger differences. The processing capacity of the dry quenching coke is generally matched with the design production capacity of the coke oven, and the most economical processing amount is selected.
When the uneven blanking of the dry quenching furnace is fast in the local direction, the coke discharging temperature is high, and the dry quenching processing capacity is reduced; or coke oven intensified production, when the actual production capacity of coke is greater than the dry quenching design throughput, the dry quenching system matched with the coke oven design capacity can not meet the full dry quenching production, and only can quench the coke of the overproduction part in a wet quenching mode, thereby not only wasting heat and water resources of red coke, but also reducing the coke quality.
Disclosure of Invention
The utility model aims at providing a system for improve dry coke quenching throughput, specifically be a safe, effectual to with the further refrigerated system of coke behind the inert gas heat transfer of circulation. According to the system, a nitrogen pipeline is additionally arranged at the bottom of the dry quenching furnace, coke discharged from a cooling section of the dry quenching furnace is cooled for the second time by introducing nitrogen, the coke discharging temperature is reduced, the dry quenching rate is improved, and the recovery of coke heat is increased.
In order to achieve the above object, the utility model adopts the following technical scheme:
a system for improving the dry quenching treatment capacity comprises a bell, a dust removal port, a pre-storage section, a dust removal device, a cooling section, an upper cone hopper, an air inlet, a cross air duct, a furnace body, a lower cone hopper, a coke discharge port, a flat gate, an air cap, a chute and a regulating rod hole, wherein a pipeline is arranged in the regulating rod hole, an installation flange is arranged at the outer end of the pipeline, the pipeline is connected with a nitrogen pipeline through a flange, and a nitrogen valve is arranged on the nitrogen pipeline, wherein in the dry quenching process, red coke is distributed from the bell at the top of the furnace body and then loaded into the pre-storage section, dust in the coke loading process is collected through the dust removal port and enters a dust removal system, low-temperature inert gas is blown into the cross air duct from the air inlet through a circulating fan, enters a red coke layer of the cooling section through the air cap and a peripheral air ring, the coke exchanges heat with the low-temperature inert gas in the cooling section, the cooled coke falls to the lower cone hopper through the upper cone hopper and then is discharged through the coke discharge port, high-temperature inert gas discharged from the chute after being dedusted by the dedusting device is discharged and is recycled after being cooled by a dry quenching boiler.
Furthermore, the outer diameter of the pipeline is consistent with the inner diameter of the adjusting rod hole, the wall thickness of the pipeline is 3mm, the length of the pipeline is consistent with the thickness of the lower cone hopper, the flange is tightly attached to the outer wall of the lower cone hopper, and the gap is filled with asbestos ropes and refractory slurry to keep sealing.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses put out the stove bottom futilely and increase nitrogen gas pipeline, simple manufacture, convenient operation. Carry out the secondary cooling to the coke that gets off from the dry quenching stove cooling zone through letting in nitrogen gas, reduce and arrange burnt temperature, improve the dry quenching coke rate, increase the thermal recovery to the coke.
Drawings
FIG. 1 is a schematic structural diagram of a coke dry quenching device of the present invention;
FIG. 2 is a schematic structural view of a nitrogen pipeline installed in an adjusting rod hole above the flat gate according to the present invention;
in the figure: 1-bell, 2-dust removal port, 3-prestoring section, 4-dust removal device, 5-cooling section, 6-upper cone hopper, 7-air inlet, 8-cross air duct, 9-furnace body, 10-lower cone hopper, 11-coke discharge port, 12-regulating rod, 13-flat gate, 14-coke, 15-blast cap, 16-chute, 17-regulating rod hole, 18-pipeline, 19-flange, 20-nitrogen valve and 21-nitrogen pipeline.
Detailed Description
The technical solution and effects of the present invention will be further described with reference to the accompanying drawings and specific embodiments, but the scope of the present invention is not limited thereto.
As shown in fig. 1, the conventional dry quenching furnace includes a bell 1, a dust removal port 2, a pre-storage section 3, a dust removal device 4, a cooling section 5, an upper cone 6, an air inlet 7, a cross air duct 8, a furnace body 9, a lower cone 10, a coke discharge port 11, adjusting rods 12, a flat plate gate 13, an air cap 15, a chute 16 and adjusting rod holes 17, wherein the adjusting rods 12 are uniformly distributed in the circumferential direction of the lower cone 10 above the flat plate gate 13, and the adjusting rods 12 can control the descending speed of coke 14 and improve the distribution of cooling air flow, thereby realizing uniform coke discharge.
In the dry quenching process, red coke is distributed from a charge clock 1 at the top of a dry quenching furnace and then is loaded into a pre-storage section 3 (dust in the coke loading process is collected through a dust removal port 2 and enters a dust removal system), low-temperature inert gas is blown into a cross air duct 8 from an air inlet 7 through a circulating fan, enters a red coke layer of a cooling section 5 of the dry quenching furnace through an air cap 15 and peripheral air rings, absorbs sensible heat of the red coke, exchanges heat with the inert circulating gas through the cooling section 5, cooled coke 14 falls to a lower cone hopper 10 through an upper cone hopper 6 and is discharged through a coke discharge port 11, high-temperature inert gas which is dedusted by a dust removal device 4 and then flows out of an annular flue (chute 16) of the dry quenching furnace flows through the dry quenching furnace for heat exchange, steam is generated by the furnace, the cooled inert gas is blown into the dry quenching furnace again through the circulating fan, and the inert gas is recycled in a closed system.
In order to improve the dry quenching capacity of the dry quenching furnace, the utility model takes the adjusting rod 12 out of the adjusting rod hole 17, and installs the pipeline 18 in the adjusting rod hole 17, installs a flange 19 at the outer end of the pipeline 18, connects the pipeline 18 with the nitrogen pipeline 21 by the flange 19, and installs a nitrogen valve 20 on the nitrogen pipeline 21, as shown in figure 2. The outer diameter of the pipeline 18 is consistent with the inner diameter of the adjusting rod hole 17, the wall thickness of the pipeline is 3mm, the length of the pipeline is consistent with the thickness of the lower cone hopper 10 of the dry quenching furnace, the flange 19 is tightly attached to the outer wall of the lower cone hopper 10, gaps are filled with asbestos ropes and refractory slurry, and sealing is kept.
Example 1
The method for improving the dry quenching treatment capacity comprises the following steps:
firstly, pulling out all the adjusting rods 12 uniformly distributed in the circumferential direction above a flat gate 13 of the dry quenching furnace, installing a pipeline 18 in an adjusting rod hole 17, installing a flange 19 at the outer end of the pipeline 18, connecting the pipeline 18 with a nitrogen pipeline 21 by the flange 19, and installing a nitrogen valve 20 on the nitrogen pipeline 21;
and step two, when the dry quenching furnace is uneven in blanking and high in coke discharging temperature caused by fast blanking in a local direction, opening a nitrogen valve 20 corresponding to the lower part of the high-temperature point of the cooling section 5, introducing nitrogen from the bottom, slowing down the blanking speed of the coke 14 in the direction, improving the blanking uniformity and further cooling the coke 14.
Example 2
The method for improving the dry quenching treatment capacity comprises the following steps:
firstly, pulling out all the adjusting rods 12 uniformly distributed in the circumferential direction above a flat gate 13 of the dry quenching furnace, installing a pipeline 18 in an adjusting rod hole 17, installing a flange 19 at the outer end of the pipeline 18, connecting the pipeline 18 with a nitrogen pipeline 21 by the flange 19, and installing a nitrogen valve 20 on the nitrogen pipeline 21;
and step two, when the coke oven is in intensified production and the production amount of the coke is larger than the dry quenching design treatment amount, opening all nitrogen valves 20 above the flat plate gate 13 of the dry quenching furnace, and introducing nitrogen from the bottom to carry out secondary cooling on the coke from the cooling section 5 of the dry quenching furnace.
Example 3
The method for improving the dry quenching treatment capacity comprises the following steps:
firstly, pulling out all the adjusting rods 12 uniformly distributed in the circumferential direction above a flat gate 13 of the dry quenching furnace, installing a pipeline 18 in an adjusting rod hole 17, installing a flange 19 at the outer end of the pipeline 18, connecting the pipeline 18 with a nitrogen pipeline 21 by the flange 19, and installing a nitrogen valve 20 on the nitrogen pipeline 21;
and step two, when the inert gas entering the cooling section 5 is unevenly distributed and the temperature of the locally discharged coke is high, opening a nitrogen valve 20 corresponding to the lower part of the high-temperature point of the cooling section 5, introducing nitrogen from the bottom, and further cooling the coke 14 from the cooling section 5 in the areas of the upper cone hopper 6 and the lower cone hopper 10.
It should be noted that the above-mentioned embodiments are illustrative and not restrictive of the technical solutions of the present invention, and equivalents of those skilled in the art or other modifications made according to the prior art are intended to be included within the scope of the claims of the present invention as long as they do not exceed the spirit and scope of the technical solutions of the present invention.
Claims (2)
1. A system for improving the dry quenching treatment capacity comprises a bell, a dust removal port, a pre-storage section, a dust removal device, a cooling section, an upper cone hopper, an air inlet, a cross air duct, a furnace body, a lower cone hopper, a coke discharge port, a flat gate, an air cap, a chute and an adjusting rod hole, and is characterized in that a pipeline is installed in the adjusting rod hole, an installation flange is arranged at the outer end of the pipeline, the pipeline is connected with a nitrogen pipeline through the flange, and a nitrogen valve is installed on the nitrogen pipeline, wherein in the dry quenching process, red coke is distributed from the bell at the top of the furnace body and then loaded into the pre-storage section, dust in the coke loading process is collected through the dust removal port and enters the dust removal system, low-temperature inert gas is blown into the cross air duct from the air inlet through a circulating fan and enters a red coke layer of the cooling section through the air cap and a peripheral air ring, the coke exchanges heat with the low-temperature inert gas in the cooling section, and the cooled coke falls to the lower cone hopper through the upper cone hopper, and then the high-temperature inert gas is discharged from the chute after being discharged from the coke discharge port and dedusted by a dedusting device, and is cooled by a dry quenching boiler for recycling.
2. The system for improving dry quenching capacity of claim 1, wherein the outer diameter of the pipeline is consistent with the inner diameter of the adjusting rod hole, the wall thickness of the pipeline is 3mm, the length of the pipeline is consistent with the thickness of the lower cone, the flange is tightly attached to the outer wall of the lower cone, and the gap is filled with asbestos ropes and refractory slurry to keep sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023049228.XU CN214299982U (en) | 2020-12-17 | 2020-12-17 | System for improving dry quenching processing capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023049228.XU CN214299982U (en) | 2020-12-17 | 2020-12-17 | System for improving dry quenching processing capacity |
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| Publication Number | Publication Date |
|---|---|
| CN214299982U true CN214299982U (en) | 2021-09-28 |
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| CN202023049228.XU Active CN214299982U (en) | 2020-12-17 | 2020-12-17 | System for improving dry quenching processing capacity |
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| CN (1) | CN214299982U (en) |
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- 2020-12-17 CN CN202023049228.XU patent/CN214299982U/en active Active
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