Top water seal tank of dry quenching furnace and dry quenching furnace

Abstract

A top water seal tank of a dry quenching furnace and the dry quenching furnace relate to the technical field of dry quenching equipment, a seal cover is arranged in a tank body, so that the tank body can be divided into a cooling area and a sealing area which are independent from each other, and the risk that the cooling area is blocked by coke powder due to mutual interference of cooling and sealing functions is avoided; and meanwhile, the cooling assembly is arranged to communicate with the cooling area, so that the cooling medium can be driven to circularly flow in the cooling area, the cooling area is always kept at a relatively low temperature level, and the risk of sealing leakage caused by the fact that the tank body is burnt through by high temperature is avoided. According to the main technical scheme, the dry quenching furnace top water seal tank comprises a tank body, a cooling assembly and a sealing assembly, a sealing cover is arranged in the tank body and used for dividing the tank body into a cooling area and a sealing area, the cooling assembly is communicated with the cooling area, the cooling assembly is used for driving a cooling medium to circularly flow in the cooling area, and the sealing assembly is arranged in the sealing area. The sealing assembly is used for being matched with the furnace cover so as to seal the furnace top of the dry quenching furnace.

Description

Technical Field

[0001] This application belongs to the technical field of dry quenching equipment, specifically relating to a top water seal trough for a dry quenching coke oven and a dry quenching coke oven. Background Technology

[0002] In the dry quenching coke production process, the water seal trough at the top of the dry quenching furnace is a key piece of equipment to ensure stable production and coke quality. Its core function is to effectively seal the coke loading port at the top of the dry quenching furnace after the red coke is loaded into the furnace.

[0003] However, most of the dry quenching coke oven top water seal troughs currently widely used in the market adopt a coverless or flat-cover structure. During production, problems such as non-circulation of water seal and coke powder blockage often occur. As a result, coke powder accumulates on the inner wall of the water seal trough, making it difficult to dissipate heat and causing the inner wall of the water seal trough to be scorched by open flame. As the scorching continues to intensify, it is very likely that the inner wall of the water seal trough will be burned through, resulting in seal leakage. Utility Model Content

[0004] In view of this, this application provides a top water seal trough for a dry quenching coke oven and a dry quenching coke oven. By setting a cover inside the trough, the trough can be divided into an independent cooling zone and a sealing zone, avoiding the risk of coke powder clogging the cooling zone due to mutual interference between the cooling and sealing functions. At the same time, by setting a cooling component to connect the cooling zone, the cooling medium can be continuously circulated, so that the cooling zone is always maintained at a low temperature level, avoiding the risk of sealing leakage due to high temperature burning through the trough.

[0005] To achieve the above objectives, this application mainly provides the following technical solutions:

[0006] One aspect of this application provides a water seal trough for the top of a dry quenching coke oven, comprising:

[0007] A tank body, the inside of which is provided with a cover, the cover being used to divide the tank body into a cooling zone and a sealing zone;

[0008] A cooling assembly connected to the cooling zone, the cooling assembly being used to drive the cooling medium to circulate in the cooling zone;

[0009] A sealing assembly disposed in the sealing area, the sealing assembly being used to cooperate with the furnace cover to seal the top of the dry quenching coke oven.

[0010] Optionally, the sealing assembly includes:

[0011] The nozzles are provided on the upper surface of the cover, and the nozzles are used to spray a sealing medium. The sealing medium can accumulate in the sealing area and cooperate with the furnace cover to seal the top of the dry quenching coke oven.

[0012] Optionally, the sealing assembly further includes:

[0013] A drain pipe is connected to the sealing area and is used to discharge coke powder that enters the sealing area.

[0014] Optionally, the sealing assembly further includes:

[0015] A guide plate is disposed on the upper surface of the cover, and the guide plate is used to guide the coke powder and wastewater into the sewage pipe.

[0016] Optionally, the spray direction of the nozzle is set at an angle to the radial direction of the cover, and the spray direction of several nozzles is the same.

[0017] Optionally, the guide plate extends in an arc shape along the radial direction of the cover, and the extension direction of the guide plate is the same as the spray direction of the nozzle.

[0018] Optionally, the cap is inclined, with the inner edge of the cap being higher than the outer edge of the cap.

[0019] Optionally, the cooling assembly includes:

[0020] A supply pipe, which passes through the cap and is connected to the cooling zone, is used to inject the cooling medium into the cooling zone;

[0021] The discharge pipe penetrates the outer wall of the tank and is connected to the cooling zone. The discharge pipe is used to discharge the cooling medium in the cooling zone.

[0022] Optionally, a support is provided on the inner wall of the tank, and the cover is placed on the support and fixed relative to the support.

[0023] Another aspect of this application provides a dry quenching coke oven, including the top water seal trough of the dry quenching coke oven as described in any one of the above claims.

[0024] By employing the above technical solution, this application has at least the following beneficial effects:

[0025] The dry quenching oven top water seal tank and dry quenching oven provided in this embodiment of the application, by setting a cover inside the tank, can divide the tank into independent cooling zone and sealing zone, realizing completely independent operation of cooling and sealing functions. This prevents coke powder from entering the cooling zone, fundamentally eliminating the risk of coke powder clogging the cooling zone, improving the stability and reliability of the cooling zone operation, and thus ensuring the continuity of dry quenching production. At the same time, by setting the cooling components to be connected to the cooling zone, the cooling medium can be driven to circulate within the cooling zone to efficiently remove heat, keeping the tank in a suitable low-temperature operating range at all times. This avoids the tank from burning through due to high temperature, ensuring the structural integrity and sealing performance of the tank, and further ensuring the stable operation of dry quenching production. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of the top water seal trough of a dry quenching coke oven according to an optional embodiment of this application;

[0027] Figure 2 This is a top view of the water seal trough at the top of a dry quenching coke oven, according to an optional embodiment of this application.

[0028] The reference numerals in the attached figures are as follows:

[0029] 1. Tank body; 11. Cooling zone; 12. Sealing zone; 2. Cover; 3. Nozzle; 4. Drain pipe; 5. Guide plate; 6. Supply pipe; 7. Discharge pipe; 8. Support. Detailed Implementation

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0034] In a first aspect, this application provides a top water seal trough for a dry quenching coke oven; in a second aspect, this application provides a dry quenching coke oven.

[0035] Among them, the top water seal groove of the dry quenching coke oven is used in the dry quenching coke oven.

[0036] Specifically, the water seal groove on the top of the dry quenching coke oven is installed on the top of the coke oven, corresponding to the coke charging port. In practical applications, when red-hot coke is loaded into the dry quenching coke oven through the charging port, the water seal groove on the top of the dry quenching coke oven seals the top of the coke oven.

[0037] See Figure 1 and Figure 2 As shown in the embodiment of this application, the dry quenching coke oven top water seal trough includes: a trough body 1, with a cover 2 inside the trough body 1, the cover 2 being used to divide the trough body 1 into a cooling zone 11 and a sealing zone 12; a cooling assembly, the cooling assembly being connected to the cooling zone 11, the cooling assembly being used to drive the cooling medium to circulate in the cooling zone 11; and a sealing assembly, the sealing assembly being disposed in the sealing zone 12, the sealing assembly being used to cooperate with the furnace cover to seal the top of the dry quenching coke oven.

[0038] In this embodiment, by providing a cover 2 inside the tank 1, the tank 1 can be divided into an independent cooling zone 11 and a sealing zone 12, achieving completely independent operation of cooling and sealing functions. This prevents coke powder from entering the cooling zone 11, fundamentally eliminating the risk of coke powder clogging the cooling zone 11, improving the stability and reliability of the cooling zone 11's operation, and thus ensuring the continuity of dry quenching production. Simultaneously, by connecting the cooling components to the cooling zone 11, the cooling medium can be driven to circulate within the cooling zone 11 to efficiently remove heat, keeping the tank 1 at a suitable low-temperature operating range. This prevents the tank 1 from burning through due to high temperatures, ensuring the structural integrity and sealing performance of the tank 1, and further guaranteeing the stable operation of dry quenching production.

[0039] The tank 1 can be an annular groove structure with a certain depth and width to accommodate sufficient cooling medium and provide the space required for sealing.

[0040] Specifically, the tank 1 is positioned near the coke loading port in the dry quenching coke oven, facilitating its cooperation with the oven cover. In practical applications, when the oven cover is closed, it interacts with the sealing components on the tank 1 to seal the top of the dry quenching coke oven, preventing high-temperature gases and dust from leaking into the external environment and ensuring that the dry quenching process takes place in a sealed environment.

[0041] The tank 1 is equipped with a cover 2, which can be an annular flat plate structure. In practical applications, inside the tank 1, the cover 2 is positioned parallel to the bottom of the tank 1, and a certain gap is reserved between the cover 2 and the bottom of the tank 1 to divide the space inside the tank 1 into a sealing area 12 and a cooling area 11.

[0042] Specifically, the area between the cover 2 and the bottom of the tank 1 is the cooling zone 11, and the side of the cover 2 away from the bottom of the tank 1 is the sealing zone 12. In practical applications, the edge of the cover 2 is tightly fitted to the inner wall of the tank 1 to prevent leakage between the cooling zone 11 and the sealing zone 12. For example, a rubber sealing gasket or sealing strip can be installed on the edge of the cover 2, which fills the tiny gap between the cover 2 and the tank 1 by compression deformation, ensuring the sealing between the two zones and preventing leakage between the cooling medium and the sealing medium, coke powder, etc. It should be noted that the part of the inner wall of the tank 1 relative to the cooling zone 11 is closer to the red-hot coke in the dry quenching coke oven than the part of the inner wall of the tank 1 relative to the sealing zone 12. Therefore, it can withstand the high-temperature impact of the red-hot coke first, thereby effectively reducing the surrounding temperature and preventing excessively high temperatures from damaging the tank 1 and affecting the sealing effect.

[0043] In order to absorb the heat emitted by the red-hot coal, the cooling zone 11 is connected to the cooling component. The cooling component drives the cooling medium to circulate in the cooling zone 11, quickly transferring the absorbed heat out, so that the temperature of the cooling zone 11 is always maintained within an acceptable range.

[0044] Specifically, see Figure 1As shown, the cooling assembly includes a supply pipe 6 and a discharge pipe 7. The supply pipe 6 penetrates the cover 2 and is connected to the cooling zone 11. The supply pipe 6 is used to inject cooling medium into the cooling zone 11. The discharge pipe 7 penetrates the outer wall of the tank 1 and is connected to the cooling zone 11. The discharge pipe 7 is used to discharge the cooling medium from the cooling zone 11. In practical applications, the cooling medium can be water, heat transfer oil, or liquid metals such as sodium or potassium. In this embodiment, the cooling medium is cooling water. The supply pipe 6 is connected to a cooling water tank or a circulating water system to ensure a stable and continuous flow of low-temperature cooling water into the cooling zone 11. During the injection process, the cooling water enters at a constant flow rate and comes into full contact with the high-temperature inner wall of the cooling zone 11, that is, the portion of the inner wall of the tank 1 relative to the cooling zone 11. It quickly absorbs the heat dissipated from the red-hot coal into the cooling zone 11. Then, the cooling water, which has absorbed heat and increased in temperature, is promptly discharged through the discharge pipe 7 to prevent heat accumulation in the cooling zone 11.

[0045] In order to seal the furnace cover and the tank body 1, a sealing component is provided in the sealing area 12 of the tank body 1. The sealing component and the furnace cover cooperate with each other to seal the top of the dry quenching coke oven, preventing high-temperature gas, dust and other substances in the dry quenching coke oven from leaking into the external environment, and ensuring that the dry quenching process is carried out in a closed environment.

[0046] Specifically, see Figure 2 As shown, the sealing assembly includes nozzles 3, with several nozzles 3 disposed on the upper surface of the cover 2. These nozzles 3 spray a sealing medium, which accumulates in the sealing area 12 and cooperates with the furnace cover to seal the top of the dry quenching coke oven. In practical applications, the sealing medium can also be water, heat transfer oil, or liquid metals such as sodium or potassium. In this embodiment, the sealing medium is also cooling water. When the dry quenching coke oven is charging and quenching, several nozzles 3 distributed on the upper surface of the cover 2 begin to operate, spraying cooling water into the sealing area 12 at a uniform and stable pressure. After being sprayed out at high speed from the nozzles 3, this cooling water quickly spreads across the sealing area 12 and finally accumulates in the gap between the furnace cover and the tank 1. It should be noted that as the cooling water continuously accumulates, a continuous and dense water seal layer is formed at the contact point between the furnace cover and the sealing area 12. This water seal layer can fully fill the tiny gaps between them, achieving the purpose of sealing the top of the dry quenching coke oven.

[0047] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 2 As shown, the sealing assembly also includes a drain pipe 4, which is connected to the sealing area 12 and is used to discharge coke powder that enters the sealing area 12.

[0048] In this embodiment, by setting up a drain pipe 4 to discharge the coke powder entering the sealing area 12, the sealing area 12 can be kept clean, ensuring the integrity and stability of the sealing structure and maintaining a good sealing effect.

[0049] The drain pipe 4 can be directly connected to the sealing area 12. For example, an interface can be opened at the bottom or side of the sealing area 12, and the drain pipe 4 can be fixedly connected to the interface to ensure the sealing of the connection and prevent leakage during the discharge of coke powder.

[0050] Specifically, since coke powder has a certain mass, it will settle to the bottom of the sealing zone 12 under the action of gravity after entering the sealing zone 12. In order to improve the coke powder discharge efficiency of the sealing zone 12, in this embodiment, the connection between the drain pipe 4 and the sealing zone 12 is located at a lower position at the bottom of the sealing zone 12, so that the coke powder can naturally gather towards the drain pipe 4 under the action of gravity. It should be noted that in this embodiment, when several nozzles 3 spray cooling water into the sealing zone 12, the flow of cooling water can be used to carry the coke powder through the drain pipe 4 for discharge, thereby achieving more efficient discharge of coke powder.

[0051] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 2 As shown, the sealing assembly also includes a guide plate 5, which is disposed on the upper surface of the cover 2 and is used to guide coke powder and sewage into the drain pipe 4.

[0052] In this embodiment, by setting the guide plate 5, the flow direction of coke powder and sewage can be changed, so that coke powder and sewage can reach the inlet of sewage pipe 4 more quickly and directly, reducing the residence time and disorderly flow in the sealed area 12, thereby improving the overall sewage discharge efficiency.

[0053] Among them, the guide plate 5 can be a plate-shaped structure with a certain curvature and slope.

[0054] Specifically, in practical applications, when coke powder and wastewater are generated within the sealed zone 12, their initial flow directions may be chaotic. In this embodiment, the flow direction of the coke powder and wastewater is altered by setting a guide plate 5, allowing them to flow towards the drain pipe 4. For example, when coke powder and wastewater diffuse towards the edge of the sealed zone 12, the guide plate 5 intercepts and guides them towards the direction connected to the drain pipe 4, preventing them from scattering or accumulating within the sealed zone 12.

[0055] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 2 As shown, the spray direction of nozzle 3 is set at an angle to the radial direction of cover 2, and several nozzles 3 have the same spray direction.

[0056] In this embodiment, by setting the nozzle 3 to spray at a certain angle to the radial direction of the cap 2, the sealing medium can be uniformly covered on the upper surface of the cap 2 in a ring shape. Compared with vertical spraying, it can fill the sealing gap more comprehensively, thereby improving the reliability of the seal.

[0057] The radial direction of the cap 2 is from the center of the cap 2 towards the edge. The spray direction of the nozzle 3 is set at an angle to the radial direction of the cap 2, that is, the nozzle 3 does not spray along the radial direction of the cap 2.

[0058] Specifically, in this embodiment, thirty-six nozzles 3 are provided. All thirty-six nozzles 3 spray at the same tilt angle and direction. It should be noted that the tilt angle of the nozzles 3 relative to the radial direction of the cover 2 can be adjusted according to actual design requirements and working conditions. Generally, it can be determined based on the size and shape of the sealing area 12, as well as the desired sealing and cleaning effect; this application does not limit this. For example, the tilt angle of the nozzles 3 relative to the radial direction of the cover 2 can be set between 30° and 60°.

[0059] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 2 As shown, the guide plate 5 extends in an arc shape along the radial direction of the cover 2, and the extension direction of the guide plate 5 is the same as the spray direction of the nozzle 3.

[0060] In this embodiment, the guide plate 5 extends radially in an arc shape along the cover 2, which can reduce the accumulation of coke powder or splashing of sewage caused by abrupt changes in the flow path. At the same time, the extension direction of the guide plate 5 is the same as the spray direction of the nozzle 3, which can work in conjunction with the sealing medium flow sprayed from the nozzle 3, allowing the sealing medium to push the coke powder and sewage to flow more smoothly along the guide plate 5, improving the efficiency and effect of the flow, and ensuring that the coke powder and sewage can flow quickly and effectively to the sewage pipe 4.

[0061] Among them, the arc-shaped guide plate 5 can cover a larger area and guide the coke powder and sewage to flow along the arc-shaped path, avoiding dead corners and allowing the coke powder and sewage to be guided more smoothly to the sewage pipe 4.

[0062] The injection direction of nozzle 3 determines the initial flow direction of the sealing medium and the carried coke powder and wastewater. The extension direction of guide plate 5 is the same as the injection direction of nozzle 3, allowing guide plate 5 to guide the flow of the sealing medium and impurities. Therefore, after being ejected from nozzle 3, the sealing medium and impurities can naturally flow along the direction of guide plate 5, reducing flow resistance and energy loss.

[0063] In some possible embodiments disclosed in this application, the cover 2 is inclined, and the inner edge of the cover 2 is higher than the outer edge of the cover 2.

[0064] In this embodiment, the cap 2 is tilted and its inner edge is higher than its outer edge, allowing the coke powder and wastewater in the sealed area 12 to flow naturally from the inner edge to the outer edge under gravity, thus facilitating their entry into the drain pipe 4. Simultaneously, the tilted design of the cap 2 and the higher inner edge increase the contact area between the cooling area 11 and the inner wall of the tank 1, i.e., the heat exchange area. This allows for more thorough heat transfer between the cooling medium in the cooling area 11 and the inner wall of the tank 1, more efficiently absorbing the heat transferred from the red-hot coke to the tank 1, and improving cooling efficiency.

[0065] When the cover 2 is an annular plate structure, the inner edge of the cover 2 is the inner edge of the annular plate close to the center, and the outer edge of the cover 2 is the outer edge of the annular plate away from the center.

[0066] In this embodiment, the nozzle 3 is positioned close to the inner edge of the cover 2, with its output end facing the outer edge of the cover 2. When the nozzle 3 starts working and sprays the sealing medium (such as cooling water), due to its proximity to the inner edge and spraying towards the outer edge, the sealing medium can spread quickly and evenly on the surface of the cover 2 with the help of the tilt angle of the cover 2. On the one hand, this enhances the flushing effect on impurities in the sealing area 12, and in conjunction with gravity, promotes the more efficient flow of coke powder and wastewater to the drain pipe 4, greatly improving the drainage efficiency, ensuring the cleanliness of the sealing area 12, and thus maintaining the sealing effect. On the other hand, as a large amount of sealing medium flows from the inner edge to the outer edge along the tilted surface of the cover 2, the cooling effect is further enhanced based on the increased heat exchange area. When the sealing medium flows, it can not only directly absorb the heat transferred from the inner wall of the tank 1, but also form a dynamic cooling layer on the surface of the cover 2, accelerating heat dissipation, effectively suppressing the temperature rise of the tank 1, and ensuring the stable operation of the dry quenching coke oven under high-temperature conditions.

[0067] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, a support 8 is provided on the inner wall of the tank 1, and the cover 2 is placed on the support 8 and fixed relative to the support 8.

[0068] In this embodiment, the bracket 8 provides reliable support for the cover 2, ensuring that the cover 2 remains in the correct position during the operation of the dry quenching coke oven and will not sink or shift due to its own weight, thus ensuring the stability of the entire device structure.

[0069] The bracket 8 is located in the cooling zone 11, and the cover 2 and the bracket 8 can be fixed by bolts.

[0070] Specifically, two annular supports 8 are arranged radially opposite each other on the inner wall of the cooling zone 11 in the tank 1. When the cover 2 is placed on these two annular supports 8, the weight of the cover 2 is evenly distributed, avoiding deformation or damage caused by uneven local stress.

[0071] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0072] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A water seal trough for the top of a dry quenching coke oven, characterized in that, include: The tank (1) has a cover (2) inside, which is used to divide the tank (1) into a cooling zone (11) and a sealing zone (12); A cooling assembly is connected to the cooling zone (11) and is used to drive the cooling medium to circulate in the cooling zone (11); A sealing assembly is disposed in the sealing area (12) and is used to cooperate with the furnace cover to seal the top of the dry quenching coke oven.

2. The water seal trough for the top of a dry quenching coke oven according to claim 1, characterized in that, The sealing assembly includes: The nozzles (3) are provided on the upper surface of the cover (2) in a plurality of manner. The plurality of nozzles (3) are used to spray a sealing medium. The sealing medium can accumulate in the sealing area (12) and cooperate with the furnace cover to seal the top of the dry quenching coke oven.

3. The water seal trough for the top of a dry quenching coke oven according to claim 2, characterized in that, The sealing assembly further includes: The drain pipe (4) is connected to the sealing area (12) and is used to discharge coke powder that enters the sealing area (12).

4. The water seal trough for the top of a dry quenching coke oven according to claim 3, characterized in that, The sealing assembly further includes: A guide plate (5) is disposed on the upper surface of the cover (2) and is used to guide the coke powder and sewage into the drain pipe (4).

5. The water seal trough for the top of a dry quenching coke oven according to claim 2, characterized in that, The spray direction of the nozzle (3) is set at an angle to the radial direction of the cover (2), and the spray direction of several nozzles (3) is the same.

6. The water seal trough for the top of a dry quenching coke oven according to claim 4, characterized in that, The guide plate (5) extends in an arc shape along the radial direction of the cover (2), and the extension direction of the guide plate (5) is the same as the spray direction of the nozzle (3).

7. The water seal trough for the top of a dry quenching coke oven according to claim 1, characterized in that, The cover (2) is inclined, and the inner edge of the cover (2) is higher than the outer edge of the cover (2).

8. The water seal trough for the top of a dry quenching coke oven according to claim 1, characterized in that, The cooling components include: Supply pipe (6), the supply pipe (6) passes through the cover (2) and is connected to the cooling zone (11), the supply pipe (6) is used to inject the cooling medium into the cooling zone (11); The discharge pipe (7) penetrates the outer wall of the tank (1) and is connected to the cooling zone (11). The discharge pipe (7) is used to discharge the cooling medium in the cooling zone (11).

9. The water seal trough for the top of a dry quenching coke oven according to claim 1, characterized in that, A support (8) is provided on the inner wall of the trough (1), and the cover (2) is placed on the support (8) and fixed relative to the support (8).

10. A dry quenching coke oven, characterized in that, Includes the top water seal trough of the dry quenching coke oven as described in any one of claims 1-9.

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