Red coke dry quenching cooling system and dry quenching cooling method

Abstract

The application discloses a red coke dry quenching cooling system and a dry quenching cooling method, and relates to the technical field of coke dry quenching, in particular to a red coke dry quenching cooling system and a dry quenching cooling method. The red coke dry quenching cooling system comprises a dry quenching coke oven, wherein the dry quenching coke oven comprises a temporary storage area, a cooling area and a red coke distribution area; the red coke distribution area is provided with a red coke distribution device; the red coke distribution device has a distribution channel; red coke is transported in the red coke distribution area through the distribution channel to form a red coke gathering falling column; the red coke gathering falling column is in contact with cooling gas for heat exchange; the cooling area is provided with a wind distribution device; the cooling area forms an upward cooling air flow through the wind distribution device; the red coke gathering falling column initially entering the cooling area is scattered by the impact of the cooling air flow; the wind distribution device has wind distribution sections and red coke rolling sections which are alternately arranged from top to bottom; the red coke in the scattered state is cooled and cooled down through the wind distribution sections during the rolling process of the red coke rolling sections. The red coke is more fully in contact with the cooling gas for heat exchange through the red coke distribution device for red coke distribution pre-quenching and the wind distribution device for red coke distribution quenching, so that the quenching efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of red coke dry quenching and cooling, and particularly relates to a red coke dry quenching and cooling system and a dry quenching and cooling method. BACKGROUND

[0002] The dry quenching process is a technology of passing low-temperature gas into the furnace body to exchange heat with the red coke for coke quenching. In the existing coke quenching process, the cooling gas is directly in contact with the red coke for cooling, and then the exhaust gas is rapidly discharged for cooling, and the cycle is carried out. Due to the acceleration of the exhaust gas speed and the limitation of the low flowability of the red coke, the cooling gas is not fully contacted with the red coke. SUMMARY

[0003] The present application provides a red coke dry quenching and cooling system and a dry quenching and cooling method, which can overcome the deficiencies in the prior art. The red coke is distributed by the red coke distribution device for pre-quenching, and the air distribution device is used for air distribution quenching, so that the red coke is more fully contacted with the cooling gas for heat exchange, and the coke quenching efficiency is improved.

[0004] Technical scheme: In order to achieve the above-mentioned purpose, a red coke dry quenching and cooling system provided by the present application comprises a dry quenching coke oven, the dry quenching coke oven comprises a temporary storage area and a cooling area, the temporary storage area corresponds to a coke inlet, the cooling area corresponds to a coke outlet, and the temporary storage area is surrounded by an exhaust gas surrounding area which is connected to the cooling area.

[0005] The red coke distribution area is located between the temporary storage area and the cooling area, and is provided with a red coke distribution device; the red coke distribution device has a distribution channel which connects the temporary storage area and the cooling area; the distribution channel is connected to the red coke distribution area for air conduction, and the cooling area is connected to the exhaust gas surrounding area for air conduction; during the process of releasing the red coke from the temporary storage area to the cooling area, the red coke is transported through the distribution channel to form a red coke gathering and falling column in the red coke distribution area, and the red coke gathering and falling column is contacted with the cooling gas to realize heat exchange.

[0006] The coke inlet is provided with a discharging device, and the red coke is released to the temporary storage area through the discharging device; the cooling area is provided with an air distribution device, and the cooling area forms an upward cooling air flow through the air distribution device; the initial red coke gathering and falling column entering the cooling area is scattered by the impact of the cooling air flow; the air distribution device has air distribution sections and red coke rolling sections which are alternately arranged from top to bottom; the scattered red coke is cooled and cooled by the air distribution sections during the rolling process through the red coke rolling sections.

[0007] The cooling and cooling of the red coke gathering and falling column in the red coke distribution area is a pre-quenching process of the secondary utilization of the cooling air, and the cooling and cooling of the scattered red coke in the cooling area is a quenching process of the primary utilization of the cooling air.

[0008] Further, the red coke distributing device comprises a top support and a bottom support, the top support constitutes a temporary storage area support to temporarily store the red coke, the bottom support constitutes a support component covering the cooling area and supporting the entire red coke distributing device, and a plurality of the distributing channels are uniformly distributed between the top support and the bottom support.

[0009] The bottom support is a hollow plate structure that is in communication with the cooling area and the red coke distributing area.

[0010] The distributing channel is a hollow pipe structure, so that the internal space of the channel is in communication with the red coke distributing area.

[0011] Further, the bottom support is provided with air guide holes, a plurality of the air guide holes are diffused from the center to the edge of the bottom support, forming a plurality of air guide areas, the air guide holes of the same air guide area have the same aperture, and the apertures of the air guide holes of the air guide areas gradually decrease from the center to the edge of the bottom support.

[0012] Further, the distributing channel is a straight-through hollow pipe with air holes distributed on the pipe surface.

[0013] Further, the air distribution device comprises an air distribution box corresponding to the air distribution section and an umbrella top corresponding to the red coke rolling section, the umbrella top encloses the corresponding air distribution box, the air distribution box is provided with air distribution holes, the umbrella top is provided with an umbrella surface for receiving and rolling the red coke, the umbrella top and the corresponding air distribution box constitute a red coke rolling air cooling structure, and in the cooling area, the red coke rolling air cooling structure is in a vertical double coke extinguishing arrangement state or a multiple coke extinguishing arrangement state.

[0014] Further, in the cooling area, each air distribution box is sequentially connected to the air supply plate, and each umbrella top is arranged in a manner that the umbrella surface and the umbrella diameter gradually increase in the direction of the falling red coke.

[0015] Further, the air distribution device is installed at the bottom central position of the cooling area through the air supply plate, the air supply plate has a double-port air inlet structure or a multiple-port air inlet structure, and the air entering the air inlet plate from the double ports or multiple ports is collected to the air outlet of the air inlet plate.

[0016] Further, the discharging device comprises a discharging hopper, the discharging hopper is provided with a discharging cover and a splash cover, and the splash cover surrounds the discharging cover.

[0017] A dry quenching and cooling method of a red coke dry quenching and cooling system, comprising a pre-quenching process and a quenching process in a dry quenching coke oven.

[0018] During the entire quenching operation, the red coke first uses the wind of the previous quenching process for the pre-quenching of this time, and then uses the newly introduced low-temperature wind for quenching.

[0019] In this quenching process, the red coke is pre-quenched by the wind used in the last quenching process, and the low-temperature wind introduced this time is used for quenching. The wind after quenching enters the red coke distribution area to pre-quench the red coke.

[0020] Further, the specific method steps of the pre-quenching process and the quenching process are as follows:

[0021] i) Pre-quenching process, in the red coke distribution area

[0022] The red coke in the temporary storage area enters the distribution channel for transportation, thereby forming a red coke aggregation falling column in the red coke distribution area. Since the distribution channel has air holes distributed on the pipe surface, the inside of the distribution channel is in communication with the red coke distribution area. Therefore, the red coke aggregation falling column is exposed to the red coke distribution area. The wind in the quenching process in the cooling area enters the red coke distribution area through the air guide hole, so that the wind contacts the red coke aggregation falling column for heat exchange, thereby preliminarily reducing the temperature of the red coke and achieving pre-quenching of the red coke. Compared with natural falling of the red coke, the red coke aggregation falling column can reduce the falling speed and prolong the time of the red coke staying in the red coke distribution area. Since the diameter of the air guide hole gradually decreases from the center to the edge of the bottom support, the amount of wind gradually decreases from the center to the surrounding of the red coke distribution area, so that the wind diffuses from the center to the surrounding and more pre-quenching contact with the red coke aggregation falling column is achieved.

[0023] ii) Quenching process, in the cooling area

[0024] The air distribution device distributes air in the cooling area. When the red coke aggregation falling column initially enters the cooling area, it is scattered by the impact of the low-temperature wind flow. The scattered red coke falls on the umbrella top and rolls along the umbrella surface. During the rolling process, the red coke is cooled by the rising low-temperature wind. The rolling of the red coke on the umbrella surface increases the falling distance in the cooling area, so that the red coke is in full contact with the low-temperature wind, thereby achieving a more complete quenching process.

[0025] Beneficial effects: The red coke dry quenching and cooling system and method have the following beneficial effects:

[0026] 1) The red coke is distributed and pre-quenched by the red coke distribution device, and the red coke is distributed and quenched by the air distribution device, so that the heat exchange and contact between the red coke and the cooling gas are more sufficient, and the quenching efficiency is improved.

[0027] 2) The red coke is transported in the red coke distribution area by the red coke distribution device arranged in the red coke distribution area, thereby forming a red coke aggregation falling column in contact with the cooling gas for heat exchange in the red coke distribution area, and achieving pre-quenching of the red coke.

[0028] 3) The air distribution device set through the cooling zone, the red coke is rolled down through the air distribution section during the red coke rolling down section, and the red coke is cooled down through the air distribution section, so that the red coke is fully contacted with the low temperature air, thereby realizing more sufficient and complete coke quenching. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the dry quenching coke oven of the present application. Figure 1

[0030] Figure 2 is a schematic diagram of the structure of the red coke distribution device. Figure 2

[0031] Figure 3 is a schematic diagram of the structure of the bottom support of the red coke distribution device. Figure 3

[0032] Figure 4 is a schematic diagram of the half-section structure of the air distribution device. Figure 4

[0033] Figure 5 is a schematic diagram of the structure of the bottom support of the red coke distribution device. Figure 5 DETAILED DESCRIPTION

[0034] The present application will be further described below in combination with the drawings.

[0035] In the existing coke quenching process, the cooling gas is directly contacted with the red coke, and then the exhaust gas is rapidly discharged for cooling, and the cycle is repeated. Due to the acceleration of the exhaust gas and the limitation of the low flowability of the red coke, the cooling gas is not fully contacted with the red coke. In order to solve the above problems, the present application designs a red coke dry quenching and cooling system and a dry quenching and cooling method.

[0036] Figure 1 is a schematic diagram of the overall structure of the dry quenching coke oven of the present application. Figure 1 ​​​​​As shown, a red coke dry quenching cooling system includes a dry quenching coke oven 100, which includes a temporary storage area S1 corresponding to the coke inlet and a cooling area S3 corresponding to the coke outlet, and the periphery of the temporary storage area S1 is covered with an exhaust gas enclosure S4 connected to the cooling area S3; a red coke distribution area S2 is located between the temporary storage area S1 and the cooling area S3 and is provided with a red coke distribution device 2; the red coke distribution device 2 has a distribution channel 20, which connects the temporary storage area S1 and the cooling area S3; the distribution channel 20 is in gas communication with the red coke distribution area S2, and the cooling area S3 is in gas communication with the exhaust gas enclosure S4 through the red coke distribution area S2; during the release of red coke from the temporary storage area S1 to the cooling area S3, the red coke is transported through the red coke distribution device 2 provided in the red coke distribution area S2, and the red coke is transported in the red coke distribution area S2 to form a red coke gathering falling column, which is in contact with the cooling gas to realize heat exchange, so that the red coke gathering falling column is in contact with the cooling gas to realize pre-quenching of the red coke. The coke inlet is provided with a discharging device 1, and the red coke is released into the temporary storage area S1 through the discharging device 1; the cooling area S3 is provided with a wind distribution device 3, and the cooling area S3 forms an upward cooling air flow through the wind distribution device 3; the red coke gathering falling column initially entering the cooling area S3 is scattered by the impact of the cooling air flow; the wind distribution device 3 has wind distribution sections 3a and red coke rolling sections 3b arranged alternately from top to bottom, and the red coke in the scattered state is cooled and cooled by the wind distribution sections 3a during rolling through the red coke rolling sections 3b; the rolling of the red coke increases the falling distance, so that the red coke is in full contact with the low-temperature wind, thereby realizing more sufficient and complete quenching.

[0037] It is worth noting that the cooling and cooling of the red coke gathering falling column in the red coke distribution area S2 is a pre-quenching process of secondary utilization of cooling wind, and the cooling and cooling of the red coke in the scattered state in the cooling area S3 is a quenching process of primary utilization of cooling wind. Therefore, pre-quenching does not require additional low-temperature gas source, only the gas of the quenching process is needed, which saves energy and reduces heat loss. At the same time, the increase of the pre-quenching process, combined with the quenching process, can make the red coke in full contact with the cooling gas, thereby improving the quenching efficiency.

[0038] As shown in the accompanying drawings, Figure 2 The red coke distribution device 2 includes a top support 21 and a bottom support 22, the top support 21 constitutes a support part for supporting the red coke in the temporary storage area S1, and the bottom support 22 constitutes a support part for covering the cooling area S3 and supporting the entire red coke distribution device 2, and a plurality of distribution channels 20 are uniformly distributed between the top support 21 and the bottom support 22; wherein: the bottom support 22 is a hollow plate structure for connecting the cooling area S3 and the red coke distribution area S2, and more specifically, as shown in the accompanying drawings, Figure 3As shown, the bottom support 22 is distributed with air guide holes 2.2, and a plurality of air guide holes 2.2 spread from the center to the edge of the bottom support 22, forming a plurality of air guide zones 2H, the air guide holes 2.2 belonging to the same air guide zone 2H have the same hole diameter, and the hole diameter of the air guide holes 2.2 of the air guide zone 2H gradually decreases from the center to the edge of the bottom support 22, so that the amount of wind from the center to the periphery of the red coke gathering falling column is gradually reduced, so that the wind is guided and diffused from the center to the periphery, and more pre-coke contact with the red coke gathering falling column is made; and the material distribution channel 20 is a hollow pipe structure, so that the internal space of the channel is in communication with the red coke distribution area S2, and more specifically, the material distribution channel 20 is a straight-through hollow pipe with air holes 2.0 distributed on the pipe surface. The material distribution channel 20 of this structure can ensure the hollow communication with the red coke distribution area S2, and at the same time, the red coke conveying and accumulation will not occur, and the conveying will be more smooth.

[0039] As shown in the accompanying drawings, Figure 4 As shown, the air distribution device 3 includes an air distribution box 31 corresponding to the air distribution section 3a and an umbrella top 32 corresponding to the red coke rolling section 3b, the umbrella top 32 covers the corresponding air distribution box 31, the air distribution box 31 has air distribution holes 3.1, the umbrella top 32 has an umbrella surface for receiving red coke and rolling, the umbrella top 32 and the corresponding air distribution box 31 form a red coke rolling air cooling structure, and in the cooling area S3, the red coke rolling air cooling structure is in a vertical double coke extinguishing arrangement state or a multiple coke extinguishing arrangement state. The red coke is extinguished during rolling, which can increase the falling distance of the red coke in the cooling area S2, so that the red coke is in full contact with the low-temperature air, and more specifically, in the cooling area S3, each air distribution box 31 is sequentially connected to the air supply plate 33, and each umbrella top 3 is arranged in the direction of red coke falling in the form of gradually increasing umbrella diameter, so that the rolling process is carried out multiple times, thereby realizing more sufficient and complete coke extinguishing process.

[0040] The air distribution device 3 is installed on the bottom central position of the cooling area S3 through the air supply plate 33; the air supply plate 33 has a double-port air inlet structure or a multiple-port air inlet structure, and the air entering the air inlet plate 33 from the double-port or multiple-port simultaneously is collected to the air outlet of the air inlet plate 33.

[0041] The discharging device 1 includes a discharging hopper having a discharging cover 11 extending into the temporary storage area S1 and a splash cover 12 surrounding the discharging cover 11.

[0042] As shown in the accompanying drawings, Figure 5 As shown, a dry quenching and cooling method of a red coke dry quenching and cooling system, including a pre-coke extinguishing process and a coke extinguishing process carried out in a dry quenching coke oven 100;

[0043] During the whole coke extinguishing operation, the red coke first uses the wind of the last coke extinguishing process for the pre-coke extinguishing of this time, and then uses the newly introduced low-temperature air for coke extinguishing;

[0044] In the present quenching process, the red coke is pre-quenched by the wind used in the last quenching process, and the present quenching process is carried out by using the newly introduced low-temperature wind. The wind after quenching enters the red coke distribution area S2 to pre-quench the red coke.

[0045] More specifically, the specific method steps of the pre-quenching process and the quenching process are as follows:

[0046] I) Pre-quenching process, in the red coke distribution area S2

[0047] The red coke in the temporary storage area S1 enters the distribution channel 20 for transportation, thereby forming a red coke aggregation falling column in the range of the red coke distribution area S2. Since the distribution channel 20 has air holes 2.0 distributed on the pipe surface, the inside of the distribution channel 20 is in communication with the red coke distribution area S2. Therefore, the red coke aggregation falling column is exposed to the red coke distribution area S2. The wind in the quenching process in the cooling area S3 enters the red coke distribution area S2 through the air guide holes 2.2, so that the wind contacts the red coke aggregation falling column for heat exchange, thereby preliminarily reducing the temperature of the red coke and achieving pre-quenching of the red coke. Compared with the natural falling of the red coke, the red coke aggregation falling column can reduce the falling speed and prolong the time of the red coke staying in the red coke distribution area S2. Since the diameters of the air guide holes 2.2 from the center of the bottom support 22 to the edge gradually decrease, the amount of wind from the center of the red coke distribution area S2 to the surrounding gradually decreases, so that the wind diffuses from the center to the surrounding and more pre-quenching contact with the red coke aggregation falling column is achieved.

[0048] Ii) Quenching process, in the cooling area S3

[0049] The air distribution device 3 distributes air in the cooling area S3. When the red coke aggregation falling column initially enters the cooling area S3, it is scattered by the impact of the low-temperature wind flow. The scattered red coke falls on the umbrella top 32 and rolls along the umbrella surface of the umbrella top 32. During the rolling process, the red coke is cooled by the rising low-temperature wind. The rolling of the red coke on the umbrella surface increases the falling distance in the cooling area S3, so that the red coke is in full contact with the low-temperature wind, thereby achieving a more sufficient and complete quenching process.

[0050] The above is only the preferred embodiment of the present application. It should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the present application. These improvements and refinements should also be considered within the scope of the present application.

Claims

1. A red coke dry quenching cooling system, comprising a dry quenching coke oven (100), the dry quenching coke oven comprising a temporary storage area (S1) corresponding to a coke inlet and a cooling area (S3) corresponding to a coke outlet, the outer periphery of the temporary storage area (S1) being covered with an exhaust gas enclosure (S4) in communication with the cooling area (S3) ; a red coke distribution area (S2) is arranged between the temporary storage area (S1) and the cooling area (S3) and is provided with a red coke distribution device (2) ; the red coke distribution device (2) has a distribution channel (20), the distribution channel (20) is in communication with the temporary storage area (S1) and the cooling area (S3), the distribution channel (20) is in communication with the red coke distribution area (S2), the distribution channel (20) is a hollow pipe structure, the internal space of the distribution channel (20) is in communication with the red coke distribution area (S2), the distribution channel (20) is a straight-through hollow pipe with air holes (2.0) distributed on the pipe surface, the cooling area (S3) is in communication with the exhaust gas enclosure (S4) through the red coke distribution area (S2), during the process of releasing red coke from the temporary storage area (S1) to the cooling area (S3), the red coke is transported through the distribution channel (20) and forms a red coke gathering falling column in the red coke distribution area (S2), the red coke gathering falling column is in contact with the cooling gas to realize heat exchange. characterized in that The coke inlet is provided with a discharging device (1), the red coke is released to the temporary storage area (S1) through the discharging device (1), the cooling area (S3) is provided with an air distribution device (3), the cooling area (S3) forms an upward cooling air flow through the air distribution device (3), the red coke gathering falling column initially entering the cooling area (S3) is scattered by the impact of the cooling air flow, the air distribution device (3) has air distribution sections (3a) and red coke rolling sections (3b) arranged alternately from top to bottom, the red coke in the scattered state is cooled and cooled through the air distribution sections (3a) during the rolling process through the red coke rolling sections (3b). The cooling and cooling of the red coke gathering falling column in the red coke distribution area (S2) is a pre-quenching process of the secondary use of the cooling air, the cooling and cooling of the red coke in the scattered state in the cooling area (S3) is a quenching process of the primary use of the cooling air. The red coke distribution device (2) comprises a top support (21) and a bottom support (22), the top support (21) forms a support part of the temporary storage area (S1) to temporarily store red coke, the bottom support (22) forms a support part covering the cooling area (S3) and supporting the entire red coke distribution device (2), a plurality of distribution channels (20) are uniformly distributed between the top support (21) and the bottom support (22), wherein the bottom support (22) is a hollow plate structure in communication with the cooling area (S3) and the red coke distribution area (S2).

2. A red coke dry quenching cooling system as claimed in claim 1, wherein: The bottom support (22) is provided with air guide holes (2.2), a plurality of air guide holes (2.2) are diffused from the center to the edge of the bottom support (22), forming a plurality of air guide areas (2H), the air guide holes (2.2) in the same air guide area (2H) have the same diameter, the diameter of the air guide holes (2.2) in the air guide area (2H) gradually decreases from the center to the edge of the bottom support (22).

3. A red coke dry quenching cooling system as claimed in claim 2, wherein: ​ 4. A red coke dry quenching cooling system as claimed in claim 3, wherein: The air distribution device (3) includes an air distribution box (31) corresponding to the air distribution section (3a) and an umbrella top (32) corresponding to the red coke rolling section (3b). The umbrella top (32) covers the corresponding air distribution box (31). The air distribution box (31) has air distribution holes (3.1). The umbrella top (32) has an umbrella surface that receives and rolls off the red coke. The umbrella top (32) and the corresponding air distribution box (31) constitute a red coke rolling air cooling structure. In the cooling zone (S3), the red coke rolling air cooling structure is a vertical double coke quenching arrangement or a multi-coke quenching arrangement.

5. A red coke dry quenching cooling system as claimed in claim 4, wherein: Within the cooling zone (S3), each of the air distribution boxes (31) is connected to the air supply plate (33) in sequence, and each of the umbrella tops is arranged in a manner where the umbrella surface diameter gradually increases in the direction of the red char's fall.

6. A red coke dry quenching cooling system as claimed in claim 5, wherein: The air distribution device (3) is installed at the bottom center of the cooling zone (S3) via the air supply plate (33); the air supply plate (33) has a double-inlet air intake structure or a multi-inlet air intake structure, and the air entering the air intake plate (33) from the double or multi-inlet air intake is gathered to the air outlet of the air intake plate (33).

7. A red coke dry quenching cooling system as claimed in claim 6, wherein: The feeding device (1) includes a feeding hopper having a feeding cover (11) extending into a temporary storage area (S1) and a splash guard (12) that surrounds the feeding cover (11).

8. A dry quenching and cooling method of a red coke dry quenching and cooling system according to claim 7, characterized in that: This includes the pre-quenching process and the quenching process carried out in the dry quenching oven (100); During this coke quenching operation, the red coke first uses the air from the previous quenching process for pre-quenching, and then uses newly introduced low-temperature air for quenching. In this coke quenching process, the red coke has been pre-quenched using the air from the previous coke quenching process. This time, the newly introduced low-temperature air is used for coke quenching. The air after coke quenching enters the red coke fabric area (S2) to pre-quench the red coke.

9. The dry quenching and cooling method of a red coke dry quenching and cooling system according to claim 8, characterized in that: The specific steps for the pre-quenching and quenching processes are as follows: i) The pre-quenching process is carried out in the red coke fabric area (S2). The red coke in the temporary storage area (S1) is transported into the material distribution channel (20), thereby forming a red coke accumulation and falling column within the red coke distribution area (S2). Since the material distribution channel (20) has ventilation holes (2.0) distributed on the pipe surface, the inside of the material distribution channel (20) is connected to the red coke distribution area (S2). Then the red coke accumulation and falling column will be exposed in the red coke distribution area (S2). During the coke quenching process in the cooling area (S3), the air enters the red coke distribution area (S2) through the air guide hole (2.2), so that the air comes into contact with the red coke accumulation and falling column to exchange heat, initially reducing the temperature of the red coke and realizing the pre-quenching of the red coke. Compared to the natural fall of red coke, the falling column of red coke gathering can reduce the falling speed and prolong the time that red coke stays in the red coke distribution area (S2). Since the aperture of the air guide hole (2.2) from the center of the bottom support (22) to the edge gradually decreases, the amount of wind from the center of the red coke distribution area (S2) to the surrounding area gradually decreases, so that the wind has more pre-quenching contact with the red coke gathering column during the process of guiding and diffusing from the center to the surrounding area. ii) The coke quenching process is carried out in the cooling zone (S3). The red coke gathered in the falling column is initially into the cooling zone (S3) and is impacted and scattered by the low-temperature air flow, and the scattered red coke falls on the umbrella top (32) and rolls along the umbrella surface of the umbrella top (32), and is cooled and cooled by the rising low-temperature air flow in the rolling process, and the rolling of the red coke on the umbrella surface can improve the falling stroke in the cooling zone (S3), so that the red coke is fully contacted with the low-temperature air flow, thereby realizing a more sufficient and complete coke extinguishing process.

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