CN112812790A - Dry quenching furnace body structure with processing capacity of 210-230t/h - Google Patents
Dry quenching furnace body structure with processing capacity of 210-230t/h Download PDFInfo
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- CN112812790A CN112812790A CN202110157937.XA CN202110157937A CN112812790A CN 112812790 A CN112812790 A CN 112812790A CN 202110157937 A CN202110157937 A CN 202110157937A CN 112812790 A CN112812790 A CN 112812790A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/04—Wet quenching
- C10B39/06—Wet quenching in the oven
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Abstract
The invention relates to a dry quenching furnace body structure with the processing capacity of 210-230t/h, wherein the dry quenching furnace body comprises a prestoring area, an annular air duct area, a chute area and a cooling area; the height of the pre-storage area is 7000-9000 mm; the height-to-width ratio of an inner ring wall of the annular air duct area is 2-3; the height-diameter ratio of the cooling area is 0.7-0.9. The invention improves the traditional 'high-thin' furnace body structure into a 'short-fat' furnace body structure, enhances the overall strength of the furnace body structure while improving the processing capacity of the coke dry quenching furnace by optimizing the structure of each working area, ensures the stable operation of the coke dry quenching furnace, realizes energy conservation and consumption reduction, and meets the coke quenching requirement of the large-volume coke furnace.
Description
Technical Field
The invention relates to the technical field of dry quenching, in particular to a dry quenching furnace body structure with the processing capacity of 210-230 t/h.
Background
The coke dry quenching refers to a coke quenching method for cooling red coke by using inert gas, and the common process equipment is a coke dry quenching furnace. The dry quenching furnace is respectively a prestoring area, an annular air duct area, an inclined duct area and a cooling area from top to bottom, red coke is loaded from the top of the dry quenching furnace, low-temperature inert gas is blown into a red coke layer of the dry quenching cooling area by a circulating fan, after absorbing sensible heat of the red coke, the red coke passes through the inclined duct area and the annular air duct area and is led out from the dry quenching furnace and is sent to a boiler area for heat exchange to generate steam.
The dry quenching process is continuously improved along with the development of the coke oven process, in recent years, the coke oven body structure has the trend of large-scale development, and large top-mounted coke ovens with the height of the coking chambers of 7m and 7.65m and stamp-charging coke ovens with the height of the coking chambers of 6.25m and 6.78m have been developed; as facilities matched with a coke oven, large-scale development of a dry quenching device is imperative, and the large-scale design of the furnace body structure of the dry quenching furnace is urgently needed to be broken through.
The large-scale dry quenching furnace body structure is enlarged, and the long service life of the dry quenching furnace is emphasized, so that the large-scale dry quenching furnace body structure is firmer and more stable if the mature cellular chute technology, chute area bracket protection technology, annular air duct area inner annular wall reinforcement technology and the like are adopted.
Disclosure of Invention
The invention provides a dry quenching furnace body structure with the processing capacity of 210-230t/h, the traditional 'high-thin' furnace body structure is improved into a 'short-fat' furnace body structure, the overall strength of the furnace body structure is enhanced while the processing capacity of the dry quenching furnace is improved by optimizing the structure of each working area, the operation stability of the dry quenching furnace is ensured, the energy conservation and consumption reduction are realized, and the quenching requirement of a large-volume coke furnace is met.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dry quenching furnace body structure with the processing capacity of 210-230t/h comprises a prestoring area, an annular air duct area, a chute area and a cooling area; the method is characterized in that the height of the pre-storage area is 7000-9000 m; the height-to-width ratio of an inner ring wall of the annular air duct area is 2-3; the height-diameter ratio of the cooling area is 0.7-0.9.
The inner diameter of a straight section of the prestoring area is 9000-13000 mm; the thickness of the inner ring wall of the annular air duct area is 350-600 mm, the width of an inner channel of the annular air duct area is 1500-2200 mm, and the height of the inner channel of the annular air duct area is 4000-5200 mm; the inner diameter of the cooling area is 9500-14000 mm.
The number of the brackets in the inclined channel area is 24-30; the chute area is provided with an adjusting brick or a metal adjusting plate.
The dry quenching furnace body is built by adopting refractory bricks or precast blocks or is cast by adopting casting materials.
And the inner ring wall of the annular air duct area is provided with a supporting wall structure.
The chute area consists of a chute area inner wall, brackets, bracket ring beams and partition walls, wherein the brackets are uniformly distributed along the circumferential direction of the dry quenching furnace to partition the chute area into a plurality of airway spaces; at least 1 layer of partition wall is arranged in each air passage space to divide the air passage space into more than 2 parallel air flow channels.
The gas flow cross-sectional area of the gas flow channel is gradually increased from top to bottom.
When the inner ring wall of the annular air duct area is built, the adjacent 2 layers and the adjacent 2 blocks of the same layer are connected through a lock catch structure.
Compared with the prior art, the invention has the beneficial effects that:
1) the coke quenching device can meet the coke quenching requirement of the coke oven with the ultra-large volume, solves the problem that the prior large coke oven can only adopt two sets of dry coke quenching devices for matching, and saves the construction investment and the operating cost.
2) The design and development of an ultra-large dry quenching device are realized, the equipment level in the coking industry is favorably improved, the environmental quality is further improved, and the purposes of energy conservation and emission reduction are achieved.
3) As a large-scale dry quenching furnace body structure, the structure has the advantages of high strength and stable operation, the interval time between medium repair and overhaul is prolonged, and the purpose of prolonging the service life is realized while the large-scale dry quenching furnace body is realized.
Drawings
FIG. 1 is a schematic view of the furnace body structure of a conventional dry quenching furnace.
FIG. 2 is a schematic diagram of a dry quenching furnace body structure with the processing capacity of 210-230 t/h.
In the figure: 1. prestoring area 2, annular air duct area 21, inner annular wall 22, partition wall 3, chute area 4 and cooling area
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in FIG. 2, the invention provides a dry quenching furnace body structure with the processing capacity of 210-230t/h, wherein the dry quenching furnace body comprises a prestoring area 1, an annular air duct area 2, a chute area 3 and a cooling area 4; the height of the prestoring region 1 is 7000-9000 mm; the height-to-width ratio of an inner annular wall of the annular air duct area 2 is 2-3; the height-diameter ratio of the cooling area 4 is 0.7-0.9.
The inner diameter of the straight section of the prestoring area 1 is 9000-13000 mm; the thickness of the inner annular wall 21 of the annular air duct area 2 is 350-600 mm, the width of an inner channel of the annular air duct area 2 is 1500-2200 mm, and the height is 4000-5200 mm; the inner diameter of the cooling area 4 is 9500-14000 mm.
The number of the brackets in the chute area 3 is 24-30; the chute section 3 is provided with adjusting bricks or metal adjusting plates.
The dry quenching furnace body is built by adopting refractory bricks or precast blocks or is cast by adopting casting materials.
And a supporting wall structure is arranged on the inner annular wall 21 of the annular air duct area 2.
The chute area 3 consists of a chute area inner wall, brackets, bracket ring beams and partition walls 31, wherein the brackets are uniformly distributed along the circumferential direction of the dry quenching furnace to divide the chute area 3 into a plurality of air passage spaces; at least 1 layer of partition wall 31 is arranged in each air passage space to divide the air passage space into more than 2 parallel air flow passages.
The gas flow cross-sectional area of the gas flow channel is gradually increased from top to bottom.
When the inner ring wall of the annular air duct area is built, the adjacent 2 layers and the adjacent 2 blocks of the same layer are connected through a lock catch structure.
The dry quenching furnace body structure with the processing capacity of 210-230t/h upgrades the traditional high-thin dry quenching furnace body structure into a short-fat dry quenching furnace body structure, and mainly optimizes the sizes and the proportions of the prestoring area 1, the annular air duct area 2, the chute area 3 and the cooling area 4 of the dry quenching furnace.
According to the invention, by improving the structure of each working area of the dry quenching furnace, the processing capacity is improved, the overall strength is increased, and the purposes of stable operation, energy conservation and consumption reduction are achieved, wherein the main principle is as follows:
firstly, the height of a straight section of a prestoring region is reduced (H' is less than H as shown in figures 1 and 2), the retention time of coke in the prestoring region of the dry quenching furnace is shortened, and the burning loss of coke products is reduced;
secondly, the height-width ratio of the inner ring wall of the annular air duct area is reduced, and the brickworks forming the inner ring wall of the annular air duct area are provided with mutually locked connecting structures, so that the inner ring wall is prevented from collapsing due to bulging;
thirdly, the chute area adopts a layered structure (see the chute structure of the novel dry quenching furnace disclosed in the Chinese patent with the publication number of CN210595920U and the chute air passage with two divisions disclosed in the Chinese patent with the publication number of CN210595919U for details) so as to reduce the flow velocity of circulating gas, reduce floating coke and increase the strength of the bracket;
and fourthly, the height-diameter ratio of the cooling area is reduced, the cooling gas-material ratio is optimized under the condition of sufficient heat exchange by matching with a circulating gas introduction device, and the energy consumption is reduced.
The annular air duct area can be provided with no supporting wall or a supporting wall according to needs, so that the strength of the annular wall in the annular air duct area is improved, and the annular air duct area is prevented from collapsing.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
In the embodiment, the dry quenching furnace body comprises a prestoring area, an annular air duct area, a chute area and a cooling area; wherein:
1. the straight section of the prestoring region has an inner diameter of 10200mm and a height of 7980 mm.
2. The thickness of the inner annular wall of the annular air duct area is 450 mm; the width of the internal channel is 1900mm, the height of the internal channel is 4680mm, and the aspect ratio is 2.5;
3. the number of the brackets in the chute area is 26, a layer of partition wall is arranged in the air passage space of the chute area to divide the air passage space into 2 parallel air flow channels, and the sectional area of the upper air flow channel is smaller than that of the lower air flow channel; the chute area is provided with an adjusting brick;
4. the inner diameter of the cooling zone is 12000mm, and the height-diameter ratio is 0.8;
in the embodiment, the dry quenching furnace body is built by refractory bricks.
In the embodiment, the processing capacity of the dry quenching furnace is 220t/h, and the operation is stable after the dry quenching furnace is put into production.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A dry quenching furnace body structure with the processing capacity of 210-230t/h comprises a prestoring area, an annular air duct area, a chute area and a cooling area; the method is characterized in that the height of the pre-storage area is 7000-9000 mm; the height-to-width ratio of an inner ring wall of the annular air duct area is 2-3; the height-diameter ratio of the cooling area is 0.7-0.9.
2. The dry quenching furnace body structure with the processing capacity of 210-230t/h as claimed in claim 1, wherein the straight section of the prestoring region has an inner diameter of 9000-13000 mm; the thickness of the inner ring wall of the annular air duct area is 350-600 mm, the width of an inner channel of the annular air duct area is 1500-2200 mm, and the height of the inner channel of the annular air duct area is 4000-5200 mm; the inner diameter of the cooling area is 9500-14000 mm.
3. The dry quenching furnace body structure with the processing capacity of 210-230t/h as claimed in claim 1, wherein the number of the brackets in the chute area is 24-30; the chute area is provided with an adjusting brick or a metal adjusting plate.
4. The dry quenching furnace body structure with the treatment capacity of 210-230t/h as claimed in claim 1, wherein the dry quenching furnace body is built by refractory bricks or precast blocks or cast by castable.
5. The dry quenching furnace body structure with the processing capacity of 210-230t/h as claimed in claim 1 or 2, wherein the inner ring wall of the annular air channel area is provided with a supporting wall structure.
6. The dry quenching furnace body structure with the processing capacity of 210-230t/h as claimed in claim 1 or 3, wherein the chute area is composed of chute area inner walls, brackets, bracket ring beams and partition walls, the brackets are uniformly distributed along the circumferential direction of the dry quenching furnace to divide the chute area into a plurality of air flue spaces; at least 1 layer of partition wall is arranged in each air passage space to divide the air passage space into more than 2 parallel air flow channels.
7. The dry quenching furnace body structure of claim 6, wherein the gas flow cross-sectional area of the gas flow channel is gradually increased from top to bottom.
8. The dry quenching furnace body structure with the processing capacity of 210-230t/h as claimed in claim 1 or 2, wherein when the inner ring wall of the annular air duct zone is built, the adjacent 2 layers and the adjacent 2 blocks of the building body on the same layer are connected through a locking structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110157937.XA CN112812790A (en) | 2021-02-05 | 2021-02-05 | Dry quenching furnace body structure with processing capacity of 210-230t/h |
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| CN202110157937.XA CN112812790A (en) | 2021-02-05 | 2021-02-05 | Dry quenching furnace body structure with processing capacity of 210-230t/h |
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| CN112812790A true CN112812790A (en) | 2021-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114736697A (en) * | 2022-04-13 | 2022-07-12 | 山东四化环保节能工程有限公司 | Heating method of dry quenching furnace |
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- 2021-02-05 CN CN202110157937.XA patent/CN112812790A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114736697A (en) * | 2022-04-13 | 2022-07-12 | 山东四化环保节能工程有限公司 | Heating method of dry quenching furnace |
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