Heat recovery tamping type coke oven

Abstract

The utility model relates to the technical field of coke ovens, in particular to a heat recovery tamping type coke oven, which comprises a pipeline, the pipeline is divided into a transverse pipe and a vertical pipe, the transverse pipe and the vertical pipe in the pipeline are vertically connected in a crossed manner, the interior of the transverse pipe is communicated with the interior of the vertical pipe, a bottom end opening of the vertical pipe is a flue gas inlet, and a first sealing pipe is movably inserted into the transverse pipe. A first air inlet hole is formed in the bottom of the right end of the first sealing pipe, a first air outlet hole is formed in the top of the left end of the first sealing pipe, a first air guide pipe communicated with the transverse pipe is fixedly installed at the top of the transverse pipe, and an air collecting box is fixedly connected to the top end of the first air guide pipe; according to the flue gas adsorption and filtration device, the activated carbon filter element in the device can be replaced under the condition that flue gas adsorption and filtration treatment is not interrupted, so that the situation that untreated flue gas is discharged into air to pollute the environment can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of coking oven technology, and in particular to a heat recovery tamping coking oven. Background Technology

[0002] Coke is one of the basic raw materials for the steel industry. Traditional coking ovens are horizontal coking machines with positive pressure operation in the carbonization chamber. Their biggest drawback is severe pollution. Although various pollution control measures have been implemented, the pollution problem cannot be completely solved. With technological research in various countries, heat recovery tamping coking ovens have begun to be put into production. Compared with traditional coking ovens, their biggest feature is the use of negative pressure operation, achieving complete combustion of volatiles within the furnace. This innovation effectively prevents the leakage of harmful gases, thus achieving effective environmental protection. The heat recovery tamping coking oven is an innovative piece of equipment designed to improve coking efficiency and reduce environmental impact. Through optimized structural design and process flow, it effectively solves many problems existing in traditional coking ovens, such as long coking time, difficulty in adjusting the firing temperature, poor furnace door sealing, and environmental pollution.

[0003] To prevent the flue gas from coking ovens from polluting the environment, multiple treatments are required for the flue gas. Among these, organic pollutants and heavy metals in the flue gas can be adsorbed by activated carbon. The activated carbon filter element used to adsorb the flue gas needs to be replaced regularly to ensure that it can properly adsorb and filter the flue gas. However, the activated carbon filter element is installed in the flue gas circulation duct, which is inconvenient to replace. Moreover, when the filter element is replaced, the flue gas filtration will be interrupted, and the untreated flue gas emitted into the air will pollute the environment. Therefore, this application proposes a heat recovery tamping coking oven. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a heat recovery tamping coking oven, which solves the problems in the background art where it is inconvenient to replace the activated carbon filter element during the adsorption and filtration of organic pollutants and heavy metals in flue gas, and where filtration is interrupted during the filter element replacement process.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a pipe, which is divided into a horizontal pipe and a vertical pipe. The horizontal and vertical pipes are connected perpendicularly in a cross shape, and their interiors are interconnected. The bottom opening of the vertical pipe is a flue gas inlet. A first sealing pipe is movably inserted into the horizontal pipe. A first air inlet is opened at the bottom of the right end of the first sealing pipe, and a first air outlet is opened at the top of the left end of the first sealing pipe. A first air guide pipe connected to the top of the horizontal pipe is fixedly installed thereon. A gas collection box is fixedly connected to the top of the first air guide pipe. A second sealing pipe is movably inserted into the interior of the vertical pipe. A second air guide pipe connected to the side wall of the vertical pipe is fixedly installed thereon. The other end of the second air guide pipe is connected to the gas collection box. An exhaust pipe connected to the interior of the gas collection box is fixedly installed on the top of the gas collection box.

[0006] Optionally, when the first air inlet at the bottom of the first sealing tube is connected to the vertical pipe of the pipeline, the first air outlet at the top of the first sealing tube is aligned with the first air guide tube, and the right end of the first sealing tube passes through the intersection of the pipeline and extends into the right end of the horizontal pipe.

[0007] Optionally, the left end of the first sealing tube is set to be open, and a first sealing cap is threadedly connected to the left end of the first sealing tube. The left end of the horizontal pipe and the top end of the vertical pipe are both threadedly connected to a second sealing cap.

[0008] Optionally, a fixing ring is fixedly installed on the inner wall of the vertical pipe of the pipeline, the bottom of the second sealing pipe abuts against the top of the fixing ring, a second air inlet is opened at the bottom of the second sealing pipe, and a second air outlet is opened on the side wall of the second sealing pipe, which is aligned with the second air guide pipe.

[0009] Optionally, a groove is provided at the bottom of the inner wall of the horizontal pipe in the pipeline, and a slider located in the groove is fixedly installed at the bottom of the left end of the first sealing pipe.

[0010] Optionally, when the slider is located at the leftmost end of the chute, the left end of the first sealing tube extends from the left end of the horizontal pipe, and the right end of the first sealing tube is located on the left side of the pipe intersection.

[0011] The beneficial effects of this utility model are:

[0012] When replacing the main activated carbon filter element in the first sealed tube, open the second sealing cap at the left end of the horizontal pipe, and then pull out the first sealed tube to block the horizontal pipe. At this time, the vertical pipe of the pipe is in a flowing state, and the flue gas in the pipe can enter the gas collection box through the auxiliary activated carbon filter element in the second sealed tube along the vertical pipe. The auxiliary activated carbon filter element in the second sealed tube can continue to adsorb and filter the organic pollutants and heavy metals in the flue gas. At this time, the first air inlet at the bottom of the first sealed tube is not connected to the vertical pipe, and the first air outlet at the top of the first sealed tube is not connected to the first air guide tube. Finally, unscrew the first sealing cap to replace the main activated carbon filter element filled in the first sealed tube. In this way, the adsorption and filtration of the flue gas will not be interrupted when replacing the activated carbon filter element. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the connection between the pipeline and the gas collection box of this utility model.

[0016] Figure 3 This is a schematic cross-sectional view of the connection between the pipe and the sealing pipe of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the sealing tube extending out of the pipe according to this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the pipeline of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the sealing tube and the first sealing cap of this utility model;

[0020] In the diagram: 1. Pipe; 2. First sealing pipe; 21. First air inlet; 22. First air outlet; 3. First air guide pipe; 4. Air collection box; 5. Exhaust pipe; 6. First sealing cover; 7. Second sealing pipe; 8. Second air guide pipe; 9. Fixing ring; 10. Second sealing cover; 12. Slide groove; 13. Slider. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1-6This utility model provides a technical solution: It includes a pipe 1, which is divided into a horizontal pipe and a vertical pipe. The horizontal and vertical pipes are connected perpendicularly in a cross shape and are internally connected. The bottom opening of the vertical pipe is a flue gas inlet. A first sealing pipe 2 is movably inserted into the horizontal pipe. A first air inlet 21 is opened at the bottom of the right end of the first sealing pipe 2, and a first air outlet 22 is opened at the top of the left end of the first sealing pipe 2. A first air guide pipe 3, connected to the top of the horizontal pipe, is fixedly installed thereto. A gas collection box 4 is fixedly connected to the top of the first air guide pipe 3. A second sealing pipe 7 is movably inserted into the interior of the vertical pipe. A second air guide pipe 8, connected to the side wall of the vertical pipe, is fixedly installed thereto. The other end of the second air guide pipe 8 is connected to the gas collection box 4. A drain valve, connected to the interior of the gas collection box 4, is fixedly installed on the top of the gas collection box 4. The gas pipe 5 has a main activated carbon filter element filled in the first sealed pipe 2 and a secondary activated carbon filter element filled in the second sealed pipe 7. When replacing the main activated carbon filter element in the first sealed pipe 2, open the second sealing cap 10 at the left end of the horizontal pipe of the pipe 1, and then pull out the first sealed pipe 2 to block the horizontal pipe. At this time, the vertical pipe of the pipe 1 is open, and the flue gas in the pipe 1 can pass through the secondary activated carbon filter element in the second sealed pipe 7 and enter the gas collection box 4. At this time, the first air inlet 21 at the bottom of the first sealed pipe 2 is not connected to the vertical pipe, and the first air outlet 22 at the top of the first sealed pipe 2 is not connected to the first air guide pipe 3. Finally, unscrew the first sealing cap 6 to replace the main activated carbon filter element filled in the first sealed pipe 2. In this way, the adsorption and filtration of flue gas will not be interrupted when replacing the activated carbon filter element.

[0023] like Figure 2 and Figure 3 As shown, when the first air inlet 21 at the bottom of the first sealing tube 2 is connected to the vertical pipe of the pipe 1, the first air outlet 22 at the top of the first sealing tube 2 is aligned with the first air guide pipe 3, and the right end of the first sealing tube 2 passes through the intersection of the pipe 1 and extends into the right end of the horizontal pipe. In this way, the first sealing tube 2 can block the intersection of the pipe 1. When the flue gas flows to the intersection of the pipe 1, it enters the main activated carbon filter element in the first sealing tube 2 through the first air inlet 21, and then exits from the first air outlet 22 and enters the gas collection box 4 through the first air guide pipe 3.

[0024] like Figure 2 and Figure 6 As shown, the left end of the first sealing tube 2 is open, and a first sealing cap 6 is threadedly connected to the left end of the first sealing tube 2. The left end of the horizontal tube of the pipe 1 and the top end of the vertical tube are both threadedly connected to a second sealing cap 10. The first sealing cap 6 can not only seal the left end of the first sealing tube 2, but also fix the main activated carbon filter element in the first sealing tube 2. The two second sealing caps 10 can seal the left end of the horizontal tube of the pipe 1 and the top end of the vertical tube, thereby preventing the leakage of flue gas.

[0025] like Figure 2 and Figure 4 As shown, a fixing ring 9 is fixedly installed on the inner wall of the vertical pipe of the pipe 1. The bottom of the second sealing pipe 7 abuts against the top of the fixing ring 9. A second air inlet is provided at the bottom of the second sealing pipe 7, and a second air outlet is provided on the side wall of the second sealing pipe 7, which is aligned with the second air guide pipe 8. Through the second air inlet and the second air outlet on the second sealing pipe 7, the flue gas can flow smoothly through the vertical pipe part of the pipe 1 into the gas collection box 4. The fixing ring 9 can restrict the position of the second sealing pipe 7 in the vertical pipe.

[0026] like Figure 3 and Figure 4 As shown, a groove 12 is provided at the bottom of the inner wall of the horizontal pipe in the pipe 1. A slider 13 located in the groove 12 is fixedly installed at the bottom of the left end of the first sealing pipe 2. Through the cooperation of the slider 13 and the groove 12, the movement range of the first sealing pipe 2 in the horizontal pipe of the pipe 1 can be restricted, and the first sealing pipe 2 can not be rotated in the horizontal pipe, so as to facilitate the screwing of the first sealing cap 6 at the left end of the first sealing pipe 2.

[0027] like Figure 6 As shown, when slider 13 is located at the leftmost end of slide groove 12, the left end of the first sealing tube 2 extends from the left end of the horizontal tube of pipe 1, and the right end of the first sealing tube 2 is located on the left side of the intersection of pipe 1. At this time, the first sealing tube 2 completely blocks the horizontal tube of pipe 1. Therefore, the flue gas cannot enter the gas collection box 4 through the horizontal tube of pipe 1 and the first air guide tube 3. The flue gas can only enter the gas collection box 4 through the vertical tube of pipe 1 and the second air guide tube 8. The flue gas will pass through the auxiliary activated carbon filter element in the second sealing tube 7 after flowing through the vertical tube of pipe 1, so that the organic pollutants and heavy metals in the flue gas can continue to be adsorbed and filtered.

[0028] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat recovery stamp-charged coke oven comprising a duct (1), characterized in that, The pipe (1) is divided into a horizontal pipe and a vertical pipe. The horizontal pipe and the vertical pipe in the pipe (1) are connected in a cross shape and are connected internally. The bottom opening of the vertical pipe is the flue gas inlet. A first sealing pipe (2) is movably inserted into the horizontal pipe. A first air inlet (21) is opened at the bottom of the right end of the first sealing pipe (2). A first air outlet (22) is opened at the top of the left end of the first sealing pipe (2). A first air guide pipe (3) connected to the top of the horizontal pipe is fixedly installed. A gas collection box (4) is fixedly connected to the top of the first air guide pipe (3). A second sealing pipe (7) is movably inserted into the interior of the vertical pipe. A second air guide pipe (8) connected to the side wall of the vertical pipe is fixedly installed. The other end of the second air guide pipe (8) is connected to the gas collection box (4). An exhaust pipe (5) connected to the interior of the gas collection box (4) is fixedly installed on the top of the gas collection box (4).

2. A heat recovery stamp charging type coke oven according to claim 1, wherein When the first air inlet (21) at the bottom of the first sealing tube (2) is connected to the vertical pipe of the pipe (1), the first air outlet (22) at the top of the first sealing tube (2) is aligned with the first air guide pipe (3), and the right end of the first sealing tube (2) passes through the intersection of the pipe (1) and extends into the right end of the horizontal pipe.

3. A heat recovery jumbo-type coke oven according to claim 1, characterized in that, The left end of the first sealing tube (2) is set to be open, and a first sealing cap (6) is threadedly connected to the left end of the first sealing tube (2). The left end of the horizontal tube and the top end of the vertical tube of the pipe (1) are both threadedly connected to a second sealing cap (10).

4. A heat recovery tamping coking oven according to claim 1, characterized in that, A fixing ring (9) is fixedly installed on the inner wall of the vertical pipe of the pipe (1). The bottom of the second sealing pipe (7) abuts against the top of the fixing ring (9). A second air inlet is opened at the bottom of the second sealing pipe (7). A second air outlet is opened on the side wall of the second sealing pipe (7) and aligned with the second air guide pipe (8).

5. A heat recovery stamp charging type coke oven according to claim 1, wherein A groove (12) is provided at the bottom of the inner wall of the horizontal pipe in the pipe (1), and a slider (13) located in the groove (12) is fixedly installed at the bottom of the left end of the first sealing pipe (2).

6. A heat-recovery stamp-charged coke oven according to claim 5, wherein When the slider (13) is located at the leftmost end of the groove (12), the left end of the first sealing tube (2) extends from the left end of the horizontal pipe of the pipe (1), and the right end of the first sealing tube (2) is located on the left side of the intersection of the pipe (1).

Images