Heat recovery equipment for coke oven

Abstract

The utility model relates to the technical field of heat recovery of coke ovens, in particular to heat recovery equipment for coke ovens, which comprises a coke oven, a connecting pipe A used for transmitting hot air is fixedly connected to the upper end of the coke oven, a fan used for exhausting air is fixedly connected to one side of the connecting pipe A, and a precipitation cabin is fixedly connected to one end, far away from the coke oven, of the connecting pipe A; a water pipe is arranged in the precipitation cabin, a connecting pipe B is arranged at one end of the precipitation cabin, and a filtering cabin is fixedly connected to the end, away from the precipitation cabin, of the connecting pipe B. According to the device, the water pipe is heated when hot air is pumped out, filtering is conducted through alignment of a first filtering plate, and meanwhile fan blades are driven to rotate when the hot air is exhausted; therefore, a worker can better judge the use condition of the first filter plate, meanwhile, when the first filter plate is blocked, hot air enters the other part of the filter bin through the branch pipe and is filtered through the second filter plate, and the heat recovery equipment for the coke oven is achieved.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery technology for coke ovens, and in particular to a heat recovery device for coke ovens. Background Technology

[0002] During the coking process, coke ovens produce a large amount of high-temperature flue gas, which can typically reach temperatures of 1000-1300℃. In traditional coke oven operations, most of the heat carried by this high-temperature flue gas is directly dissipated into the atmosphere. According to statistics, the thermal efficiency of traditional coke ovens is only about 30%-40%, which means that 60%-70% of the heat is not effectively utilized, resulting in a huge waste of energy.

[0003] Traditional equipment cannot fully utilize the hot gas from the coke oven, and the exhaust of the hot gas causes environmental pollution. Furthermore, the long-term use of the filter requires staff to constantly inspect the internal filter plates, making it extremely inconvenient to use.

[0004] In view of this, we have studied and improved the existing problems to provide a heat recovery device for coke ovens. The device has a reasonable structural design, high stability, and can be used in various aspects. The aim is to solve the problems and improve the practical value through this technology. Utility Model Content

[0005] This invention heats the water pipe when hot air is extracted and filters it through a first filter plate. Simultaneously, the hot air exhaust drives the fan blades to rotate, allowing the operator to better assess the condition of the first filter plate. Furthermore, when the first filter plate becomes clogged, the hot air enters the filter chamber through a branch pipe, and another portion is filtered through a second filter plate, thus realizing a heat recovery device for coke ovens.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat recovery device for a coke oven, comprising a coke oven, a connecting pipe A for transmitting hot gas fixedly connected to the upper end of the coke oven, a blower for exhausting air fixedly connected to one side of the connecting pipe A, a sedimentation chamber fixedly connected to the end of the connecting pipe A away from the coke oven, a water pipe provided inside the sedimentation chamber, a connecting pipe B provided to one end of the sedimentation chamber, a filter chamber fixedly connected to the end of the connecting pipe B away from the sedimentation chamber, a first filter plate for purifying hot gas fixedly connected inside the filter chamber, a partition plate for separation fixedly connected to one side of the first filter plate, an exhaust pipe for discharge fixedly connected to the lower end of the filter chamber, a connecting plate provided inside the exhaust pipe, a connecting rod for transmission fixedly connected to one end of the connecting plate, a fan blade fixedly connected to the outer end of the connecting rod, a branch pipe for diversion fixedly connected to the upper end of the filter chamber, and a second filter plate for auxiliary filtration provided to one side of the partition plate.

[0007] Preferably, the coke oven and the settling chamber are connected by a connecting pipe A, which is driven by a fan to draw air. The fan is fixedly connected to the upper end of the settling chamber, and the interior of the settling chamber is hollow.

[0008] Preferably, the water pipe passes through the sedimentation chamber, with a portion of it located inside the sedimentation chamber. The filter chamber and the first filter plate are connected by a connecting pipe B, which extends into the filter chamber from one end.

[0009] Preferably, the filter chamber is divided into two parts by a partition plate. The first filter plate is located at the end near the connecting pipe B and is located at the center of the interior. The size of the first filter plate matches the interior of the filter chamber.

[0010] Preferably, the exhaust pipe is fixedly connected to one side of the first filter plate, passes through the filter chamber and is connected to the lower end, and the filter chamber is provided with an air outlet at the end away from the connecting pipe B, and its exhaust pipe extends to the rear end and is connected to the exhaust pipe.

[0011] Preferably, the exhaust pipe has four sets of connecting plates inside, which are connected around a center. One end of each connecting plate is connected to the outer fan blade via a connecting rod, which extends through the exhaust pipe to the outside.

[0012] Preferably, the branch pipe is fixedly connected to the upper end of one side of the first filter plate, and a pressure valve is provided at the connection between the branch pipe and the filter chamber. The branch pipe extends backward to connect with another part of the filter chamber, and the second filter plate is fixedly connected inside. The size of the second filter plate matches the internal size of the filter chamber.

[0013] This invention has the following beneficial effects: After the filtered hot air enters the exhaust pipe, the airflow will cause the connecting plate to rotate. When the connecting plate rotates, it will cause the connecting rod to rotate synchronously. When the connecting rod rotates, since the connecting rod is fixedly connected to the fan blade, the fan blade will rotate synchronously when the connecting rod rotates. When the fan blade rotates, the operator can judge the airflow speed based on the speed of the fan blade rotation, thereby judging whether the first filter plate is blocked. When the fan blade speed is too slow, the operator needs to replace the internal filter plate in time. After long-term use, if the first filter plate is blocked, the hot air cannot smoothly enter the exhaust pipe. As a result, the internal air pressure in the part of the filter chamber near the connecting pipe B will increase, thereby opening the air pressure valve at the branch pipe connection. This allows the hot air to enter the filter chamber through the branch pipe, and the other part is filtered by the second filter plate, preventing the filter plate from becoming blocked after a long time and causing equipment damage. Attached Figure Description

[0014] Figure 1 This is an overall appearance drawing of a heat recovery device for a coke oven proposed in this utility model;

[0015] Figure 2 This is a side view of a heat recovery device for a coke oven proposed in this utility model;

[0016] Figure 3 This is a cross-sectional view of a heat recovery device for a coke oven proposed in this utility model;

[0017] Figure 4 This is a cross-sectional view of a heat recovery device for a coke oven proposed in this utility model;

[0018] Figure 5 This is an enlarged view of A, a heat recovery device for a coke oven proposed in this utility model.

[0019] Legend:

[0020] 1. Coke oven; 2. Connecting pipe A; 3. Fan; 4. Sedimentation chamber; 5. Water pipe; 6. Connecting pipe B; 7. Filter chamber; 8. First filter plate; 9. Divider plate; 10. Exhaust pipe; 11. Connecting plate; 12. Connecting rod; 13. Fan blade; 14. Branch pipe; 15. Second filter plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-5 This utility model provides an embodiment of a heat recovery device for a coke oven, comprising a coke oven 1, a connecting pipe A2 for transmitting hot gas fixedly connected to the upper end of the coke oven 1, a blower 3 for exhausting air fixedly connected to one side of the connecting pipe A2, a sedimentation chamber 4 fixedly connected to the end of the connecting pipe A2 away from the coke oven 1, a water pipe 5 disposed inside the sedimentation chamber 4, a connecting pipe B6 disposed at one end of the sedimentation chamber 4, a filter chamber 7 fixedly connected to the end of the connecting pipe B6 away from the sedimentation chamber 4, a first filter plate 8 for purifying hot gas fixedly connected inside the filter chamber 7, a partition plate 9 for separation fixedly connected to one side of the first filter plate 8, an exhaust pipe 10 for discharging fixedly connected to the lower end of the filter chamber 7, a connecting plate 11 disposed inside the exhaust pipe 10, a connecting rod 12 for transmission fixedly connected to one end of the connecting plate 11, a fan blade 13 fixedly connected to the outer end of the connecting rod 12, a branch pipe 14 for diversion fixedly connected to the upper end of the filter chamber 7, and a second filter plate 15 for auxiliary filtration disposed on one side of the partition plate 9.

[0023] In an optional embodiment: the coke oven 1 and the settling chamber 4 are connected by a connecting pipe A2. The connecting pipe A2 is driven by a fan 3 to draw air. The fan 3 is fixedly connected to the upper end of the settling chamber 4. The interior of the settling chamber 4 is hollow. The coke oven 1 drives the connecting pipe A2 through the fan 3 to remove the internal hot air. The connecting pipe A2 is made of high temperature resistant material to prevent the pipe from being damaged due to excessive hot air.

[0024] In an optional embodiment: the water pipe 5 penetrates the sedimentation chamber 4, with a portion of it located inside the sedimentation chamber 4. The filter chamber 7 and the first filter plate 8 are connected by a connecting pipe B6, which extends into the interior of the filter chamber 7 at one end. After the high-temperature hot air enters the sedimentation chamber 4, large dust particles in the air will fall into the sedimentation chamber 4. At the same time, the water pipe 5 is made of iron, which will cause the temperature inside the sedimentation chamber 4 to rise when the high-temperature hot air enters it. Also, because the water pipe 5 is made of iron, its thermal conductivity will be improved. As the temperature of the pipe wall of the water pipe 5 rises, it will heat the water source transported inside, thereby improving the utilization of the hot air.

[0025] In an optional embodiment: the filter chamber 7 is divided into two parts by a partition plate 9. The first filter plate 8 is located at the center of the interior near the connecting pipe B6. The size of the first filter plate 8 matches the interior of the filter chamber 7. When hot air enters the filter chamber 7 through the connecting pipe B6, the hot air will not enter the branch pipe 14 because a pressure valve is provided at the connection between the upper branch pipe 14 and the filter chamber 7. Therefore, when the hot air enters the filter chamber 7, the first filter plate 8 will filter the fine particles mixed in the hot air, thereby filtering the hot air and reducing its impact on the environment during subsequent discharge.

[0026] In an optional embodiment: the exhaust pipe 10 is fixedly connected to one side of the first filter plate 8, and it passes through the filter chamber 7 and is connected to the lower end. The filter chamber 7 is provided with an air outlet at the end away from the connecting pipe B6. The exhaust pipe 10 extends to the rear end and is connected to the exhaust pipe. The filtered hot air enters the air outlet through the exhaust pipe 10 and is discharged.

[0027] In an optional embodiment: four sets of connecting plates 11 are provided inside the exhaust pipe 10, and the four sets of connecting plates 11 are connected around a center. One end of the connecting plate 11 is connected to the outer fan blade 13 through a connecting rod 12. The connecting rod 12 extends through the exhaust pipe 10 to the outside. After the filtered hot air enters the exhaust pipe 10, the airflow will drive the connecting plate 11 to rotate. When the connecting plate 11 rotates, it will drive the connecting rod 12 to rotate synchronously. When the connecting rod 12 rotates, since the connecting rod 12 is fixedly connected to the fan blade 13, the rotation of the connecting rod 12 will drive the fan blade 13 to rotate synchronously. When the fan blade 13 rotates, the operator can judge the air flow rate based on the rotation speed of the fan blade 13, thereby determining whether the first filter plate 8 is blocked. When the fan blade 13 rotates too slowly, the operator needs to replace the internal filter plate in time. After long-term use, if the first filter plate 8 is blocked, the hot air cannot smoothly enter the exhaust pipe 10, and the internal air pressure in the part of the filter chamber 7 near the connecting pipe B6 will increase, thereby opening the air pressure valve at the connection of the branch pipe 14, so that the hot air enters the filter chamber 7 through the branch pipe 14. The other part is filtered through the second filter plate 15 to prevent the filter plate from being blocked after a long time, which would cause equipment damage.

[0028] In an optional embodiment: the branch pipe 14 is fixedly connected to the upper end of one side of the first filter plate 8, and a pressure valve is provided at the connection between the branch pipe 14 and the filter chamber 7. The branch pipe 14 extends backward to connect with another part of the filter chamber 7, and the second filter plate 15 is fixedly connected inside. The size of the second filter plate 15 matches the internal size of the filter chamber 7, so that it can take timely measures when the first filter plate 8 is blocked, while also protecting the safety of the equipment, extending the service life of the equipment and improving the filtration effect.

[0029] Working principle and process: When the operator turns on the equipment, the blower 3 draws hot air from inside the coke oven 1 through the connecting pipe A2. The drawn hot air enters the settling chamber 4, thereby raising the temperature inside the settling chamber 4. When the temperature inside the settling chamber 4 rises, it heats the water flowing inside the water pipe 5. The hot air inside the settling chamber 4 enters the filter chamber 7 through the connecting pipe B6 and is filtered by the first filter plate 8. The hot air filtered by the first filter plate 8 enters the air outlet through the exhaust pipe 10. At the same time, the hot air flowing inside the exhaust pipe 10 drives the connecting plate 11 to rotate. The connecting plate 11 then drives the fan blade 13 to rotate through the connecting rod 12. After the first filter plate 8 is blocked, the hot air enters the branch pipe 14 and is filtered again through the second filter plate 15.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat recovery device for a coke oven, comprising a coke oven (1), characterized in that: The coke oven (1) is fixedly connected to a connecting pipe A (2) for transmitting hot gas. A blower (3) for evacuating air is fixedly connected to one side of the connecting pipe A (2). A sedimentation chamber (4) is fixedly connected to the end of the connecting pipe A (2) away from the coke oven (1). A water pipe (5) is installed inside the sedimentation chamber (4). A connecting pipe B (6) is installed at one end of the sedimentation chamber (4). A filter chamber (7) is fixedly connected to the end of the connecting pipe B (6) away from the sedimentation chamber (4). A first filter plate (8) for purifying hot gas is fixedly connected inside the filter chamber (7). A partition plate (9) for partitioning is fixedly connected to one side. An exhaust pipe (10) for discharge is fixedly connected to the lower end of the filter chamber (7). A connecting plate (11) is provided inside the exhaust pipe (10). A connecting rod (12) for transmission is fixedly connected to one end of the connecting plate (11). A fan blade (13) is fixedly connected to one end of the connecting rod (12) on the outside. A branch pipe (14) for diversion is fixedly connected to the upper end of the filter chamber (7). A second filter plate (15) for auxiliary filtration is provided on one side of the partition plate (9).

2. The heat recovery equipment for a coke oven according to claim 1, characterized in that: The coke oven (1) and the sedimentation chamber (4) are connected by a connecting pipe A (2). The connecting pipe A (2) is driven by a fan (3) to draw air. The fan (3) is fixedly connected to the upper end of the sedimentation chamber (4), and the interior of the sedimentation chamber (4) is hollow.

3. The heat recovery equipment for a coke oven according to claim 1, characterized in that: The water pipe (5) passes through the sedimentation chamber (4), and part of it is located inside the sedimentation chamber (4). The filter chamber (7) and the first filter plate (8) are connected by a connecting pipe B (6), which extends through one end of the filter chamber (7) into the interior.

4. A heat recovery device for a coke oven according to claim 1, characterized in that: The filter chamber (7) is divided into two parts by a partition plate (9). The first filter plate (8) is located at the end near the connecting pipe B (6). The first filter plate (8) is located at the center of the interior. The size of the first filter plate (8) matches the interior of the filter chamber (7).

5. A heat recovery device for a coke oven according to claim 1, characterized in that: The exhaust pipe (10) is fixedly connected to one side of the first filter plate (8), and it passes through the filter chamber (7) and is connected to the lower end. The filter chamber (7) is provided with an air outlet at the end away from the connecting pipe B (6), and its exhaust pipe (10) extends to the rear end and is connected to the exhaust pipe.

6. A heat recovery device for a coke oven according to claim 1, characterized in that: The exhaust pipe (10) is provided with four sets of connecting plates (11), which are connected around a center. One end of the connecting plate (11) is connected to the outer fan blade (13) through a connecting rod (12), and the connecting rod (12) extends through the exhaust pipe (10) to the outside.

7. A heat recovery device for a coke oven according to claim 1, characterized in that: The branch pipe (14) is fixedly connected to the upper end of one side of the first filter plate (8), and a pressure valve is provided at the connection between it and the filter chamber (7). The branch pipe (14) extends backward to connect with another part of the filter chamber (7), and its second filter plate (15) is fixedly connected inside. The size of the second filter plate (15) matches the internal size of the filter chamber (7).

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