Coke discharging and cooling device of coke furnace

Abstract

The utility model relates to the technical field of coking coal cooling, and discloses a coke discharging and cooling device of a coke furnace, which comprises a cooling cover and an air inlet communicated with the upper end of the cooling cover, an air inlet fan is mounted on the inner side of the air inlet, and a smoke discharging mechanism is communicated with one side, close to the air inlet, of the upper end of the cooling cover. A water spraying cooling mechanism is embedded in the cooling cover, the water spraying cooling mechanism comprises a filter screen and a plurality of mixing pipes located at the upper end of the filter screen, and a plurality of spray heads are installed at the lower end of each mixing pipe. According to the coking coal cooling device, water and compressed air are introduced into the mixing pipe in the water spraying cooling mechanism and are sprayed out in an atomized manner, and water mist passes through the filter screen and then uniformly cools coking coal walking on the conveyor, so that the cooling consistency of the coking coal is improved; and heat in smoke and water vapor in the smoke exhaust pipe is absorbed through the water cooling pipe in the smoke exhaust mechanism, so that heat recovery in the coking coal cooling process is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of coking coal cooling, in particular to a coke outlet cooling device for a coke oven. Background Art

[0002] Coking coal is one of the primary raw materials for producing peak-grade coke, possessing high calorific value and chemical activity. During the production process, the coke oven charge must reach a temperature exceeding 1300°C to convert the coking coal into coke. Coking coal cooling is a crucial step in coke oven production. Failure to effectively cool the coking coal can negatively impact coke oven production and quality, potentially causing environmental pollution.

[0003] A Chinese patent discloses a coke outlet cooling device for a coal coke oven (authorization publication number CN215162372U). This patented technology reduces the amount of cooling water in the cooling tank and uses the high temperature of the coke to evaporate the cooling water, separating the coke from the cooling water. This prevents the coke from remaining immersed in cooling water after it has been completely cooled, resulting in a high moisture content in the coke. However, its cooling efficiency is low and the coke cannot be fully cooled. Utility Model Content

[0004] The purpose of the utility model is to provide a coke outlet cooling device for a coal coke oven to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A coke outlet cooling device for a coal coke oven comprises a cooling hood and an air inlet connected to the upper end of the cooling hood, an inlet fan is installed on the inner side of the air inlet, a side of the upper end of the cooling hood close to the air inlet is connected to a smoke exhaust mechanism, a water spray cooling mechanism is embedded in the interior of the cooling hood, the water spray cooling mechanism comprises a filter and a plurality of mixing tubes located above the filter, one end of the plurality of mixing tubes is solidly connected to a water inlet pipe, and the other end of the plurality of mixing tubes is solidly connected to an air inlet pipe, a plurality of nozzles are installed at the lower end of each of the mixing tubes, one end of the water inlet pipe is connected to the water inlet, and one end of the air inlet pipe is connected to the air inlet.

[0007] As a further solution of the present invention: a set of clips are installed on the water inlet pipe and the air inlet pipe, the lower ends of the clips are fixedly connected to the filter screen through fasteners, and the upper ends of the clips are fixedly connected to the cooling cover through fasteners.

[0008] As a further solution of the present invention: the filter screen separates the cooling cover into two parts, the upper part and the lower part.

[0009] As a further solution of the present invention: one end of the cooling cover is rotatably connected to a cover door through a hinge, and a group of fixed blocks are fixedly connected to the front and rear sides of the other end of the cooling cover, the front and rear sides of the cover door are rotatably connected to a cylinder, and the upper end of the cylinder is rotatably connected to the cooling cover.

[0010] As a further solution of the present invention: the smoke exhaust mechanism includes a collecting hood connected to the cooling hood, the upper end of the collecting hood is connected to a smoke exhaust pipe, and a plurality of curved water-cooling pipes are embedded in the interior of the smoke exhaust pipe.

[0011] As a further solution of the present invention: one end of several of the water-cooling pipes is commonly connected to a converging water pipe, and the other ends of several of the water-cooling pipes are commonly connected to a diverting water pipe, the front end of the converging water pipe is connected to a hot water return port, the front end of the diverting water pipe is connected to a filter, and the front end of the filter is connected to a cold water inlet.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model introduces water and compressed air into a mixing pipe in a water spray cooling mechanism and sprays the water in the form of atomization. After the water mist passes through a filter screen, the coking coal traveling on the conveyor is evenly cooled, thereby improving the consistency of the coking coal cooling; the water cooling pipe in the smoke exhaust mechanism absorbs the heat in the smoke and water vapor in the smoke exhaust pipe, thereby realizing heat recovery in the coking coal cooling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a coke outlet cooling device for a coal coke oven;

[0015] Figure 2 This is a schematic diagram of the structure of a water spray cooling mechanism in a coke outlet cooling device for a coal coke oven;

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part B;

[0017] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part A;

[0018] Figure 5 The diagram is a structural diagram of a smoke exhaust mechanism in a coke outlet cooling device for a coal coke oven.

[0019] In the figure: 1. Cooling hood; 2. Hood door; 21. Cylinder; 22. Hinge; 3. Water spray cooling mechanism; 31. Filter; 32. Water inlet; 33. Water inlet pipe; 34. Nozzle; 35. Mixing pipe; 36. Air inlet pipe; 37. Air inlet; 38. Buckle; 4. Smoke exhaust mechanism; 41. Collecting hood; 42. Smoke exhaust pipe; 43. Water cooling pipe; 44. Diverter pipe; 45. Filter; 46. Cold water inlet; 47. Hot water return; 48. Combined water pipe; 5. Air inlet; 6. Inlet fan; 7. Fixing block. DETAILED DESCRIPTION

[0020] See also Figures 1 to 5 In an embodiment of the present invention, a coke outlet cooling device for a coal coke oven includes a cooling cover 1 and an air inlet 5 connected to the upper end of the cooling cover 1. An inlet fan 6 is installed on the inner side of the air inlet 5. A smoke exhaust mechanism 4 is connected to the side of the upper end of the cooling cover 1 close to the air inlet 5. A water spray cooling mechanism 3 is embedded in the interior of the cooling cover 1.

[0021] exist Figure 1 、 Figure 2 and Figure 3 In the embodiment, the water spray cooling mechanism 3 includes a filter 31 and a plurality of mixing tubes 35 located at the upper end of the filter 31. One end of the plurality of mixing tubes 35 is solidly connected to a water inlet pipe 33, and the other end of the plurality of mixing tubes 35 is solidly connected to an air inlet pipe 36. A plurality of nozzles 34 are installed at the lower end of each mixing tube 35. One end of the water inlet pipe 33 is connected to a water inlet 32, and one end of the air inlet pipe 36 is connected to an air inlet 37. A set of buckles 38 are installed on both the water inlet pipe 33 and the air inlet pipe 36. The lower end of the buckle 38 is fixedly connected to the filter 31 by a fastener, and the upper end of the buckle 38 is fixedly connected to the cooling cover 1 by a fastener. The filter 31 connects the cooling cover 1 Separated into two parts, the filter 31 can prevent large particles of coking coal dust from entering the smoke exhaust mechanism 4 and the air inlet 5 during the coking coal cooling process; the nozzle 34 is facing the filter 31, and water is introduced from the water inlet 32, and the water enters the water inlet pipe 33 and the mixing pipe 35 in turn; compressed air is introduced from the air inlet 37, and the compressed air enters the air inlet pipe 36 and the mixing pipe 35 in turn. After the water and compressed air are mixed in the mixing pipe 35, they are sprayed out from the nozzle 34 in the form of atomization. After the water mist passes through the filter 31, it cools the coking coal traveling on the conveyor. The water mist can also be sprayed evenly through the filter 31, thereby improving the consistency of the coking coal cooling.

[0022] exist Figure 1 and Figure 4In the embodiment, one end of the cooling hood 1 is rotatably connected to the hood door 2 through a hinge 22, and a group of fixing blocks 7 are fixedly connected to the front and rear sides of the other end of the cooling hood 1, and the front and rear sides of the hood door 2 are rotatably connected to the cylinder 21. The upper end of the cylinder 21 is rotatably connected to the cooling hood 1, and the conveyor is placed below the coke outlet of the coal coke oven, and the fixing block 7 is installed at the coke outlet of the coal coke oven by bolts, and the cooling hood 1 is covered on the conveyor at the same time; the extension and contraction of the cylinder 21 can drive the hood door 2 to rotate around the hinge 22, thereby adjusting the opening degree of the hood door 2 to facilitate the smooth passage of coke.

[0023] exist Figure 1 and Figure 5 In the embodiment, the smoke exhaust mechanism 4 includes a collecting cover 41 connected to the cooling cover 1, the upper end of the collecting cover 41 is connected to a smoke exhaust pipe 42, and a plurality of curved water cooling pipes 43 are embedded in the interior of the smoke exhaust pipe 42. One end of the plurality of water cooling pipes 43 is commonly connected to a converging water pipe 48, and the other end of the plurality of water cooling pipes 43 is commonly connected to a diverting water pipe 44. The front end of the converging water pipe 48 is connected to a hot water return port 47, the front end of the diverting water pipe 44 is connected to a filter 45, and the front end of the filter 45 is connected to a cold water inlet. 46. ​​Cold water is introduced from the cold water inlet 46. After being filtered by the filter 45, the cold water enters the diversion water pipe 44 and then flows into each water-cooling pipe 43 respectively. At the same time, the flue gas and water vapor generated after the coke is cooled enter the collection cover 41 and the exhaust pipe 42 in sequence from the cooling cover 1, and transfer part of the heat to the cold water in the water-cooling pipe 43. After absorbing the heat, the cold water heats up to form hot water, which then flows into the combined water pipe 48 and finally flows out from the hot water return port 47, thus completing the heat recovery in the coke cooling process.

[0024] The working principle of the utility model is as follows: first, the conveyor is placed below the coke outlet of the coal coke oven, and the fixing block 7 is installed at the coke outlet of the coal coke oven by bolts, and the cooling cover 1 is covered on the conveyor; then, the air inlet 5 is connected to the external space through the air duct, and the smoke exhaust mechanism 4 is connected to the dust removal equipment;

[0025] After the inlet fan 6 is turned on, the inlet fan 6 draws external air into the air inlet 5, and then discharges it into the cooling cover 1 at a certain pressure; at the same time, after the coking of the coke in the coal coke oven is completed, it is unloaded from the coke outlet onto the conveyor. When the coke is conveyed to the cooling cover 1, the coke is cooled by the air; if the air cannot meet the cooling requirements of the coke, water is introduced from the water inlet 32, and the water enters the water inlet pipe 33 and the mixing pipe 35 in sequence; compressed air is introduced from the air inlet 37, and the compressed air enters the air inlet pipe 36 and the mixing pipe 35 in sequence. After the water and compressed air are mixed in the mixing pipe 35, they are sprayed out from the nozzle 34 in the form of atomization. After the water mist passes through the filter 31, it cools the coke traveling on the conveyor;

[0026] During the coking coal cooling process, cold water is introduced from the cold water inlet 46, filtered through the filter 45, and then enters the diversion water pipe 44, and then flows into each water-cooling pipe 43 respectively. At the same time, the flue gas and water vapor generated after the coking coal is cooled enter the collection cover 41 and the exhaust pipe 42 in sequence from the cooling cover 1, and transfer part of the heat to the cold water in the water-cooling pipe 43. After absorbing the heat, the cold water heats up to form hot water, which then flows into the combined water pipe 48 and finally flows out from the hot water return port 47, thus completing the heat recovery during the coking coal cooling process.

[0027] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A coke oven outlet cooling device, comprising a cooling hood (1), and an air inlet (5) connected to the upper end of the cooling hood (1), wherein an air inlet fan (6) is installed inside the air inlet (5), characterized in that: The upper end of the cooling cover (1) is connected to a smoke exhaust mechanism (4) on one side close to the air inlet (5), and a water spray cooling mechanism (3) is embedded in the interior of the cooling cover (1). The water spray cooling mechanism (3) includes a filter (31) and a plurality of mixing tubes (35) located at the upper end of the filter (31). One end of the plurality of mixing tubes (35) is solidly connected to a water inlet pipe (33), and the other end of the plurality of mixing tubes (35) is solidly connected to an air inlet pipe (36). The lower end of each of the mixing tubes (35) is equipped with a plurality of nozzles (34). One end of the water inlet pipe (33) is connected to a water inlet (32), and one end of the air inlet pipe (36) is connected to an air inlet (37).

2. A coke oven coke cooling device according to claim 1, characterized in that: A set of clips (38) are installed on both the water inlet pipe (33) and the air inlet pipe (36); the lower ends of the clips (38) are fixedly connected to the filter screen (31) via fasteners, and the upper ends of the clips (38) are fixedly connected to the cooling cover (1) via fasteners.

3. The coke oven cooling device according to claim 1, characterized in that: The filter screen (31) separates the cooling cover (1) into two parts, an upper part and an lower part.

4. A coke oven coke cooling device according to claim 1, characterized in that: One end of the cooling cover (1) is rotatably connected to a cover door (2) via a hinge (22), and a group of fixed blocks (7) are fixedly connected to the front and rear sides of the other end of the cooling cover (1). The front and rear sides of the cover door (2) are rotatably connected to a cylinder (21), and the upper end of the cylinder (21) is rotatably connected to the cooling cover (1).

5. The coke oven coke cooling device according to claim 1, characterized in that: The smoke exhaust mechanism (4) comprises a collecting hood (41) connected to the cooling hood (1); the upper end of the collecting hood (41) is connected to a smoke exhaust pipe (42); and a plurality of curved water cooling pipes (43) are embedded and installed inside the smoke exhaust pipe (42).

6. A coke oven coke cooling device according to claim 5, characterized in that: One end of the plurality of water-cooling pipes (43) is commonly connected to a converging water pipe (48), and the other end of the plurality of water-cooling pipes (43) is commonly connected to a diverting water pipe (44), the front end of the converging water pipe (48) is connected to a hot water return port (47), the front end of the diverting water pipe (44) is connected to a filter (45), and the front end of the filter (45) is connected to a cold water inlet (46).

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