Coke oven raw gas low-temperature waste heat recycling device

Abstract

The utility model discloses a coke oven raw gas low-temperature waste heat recycling device which comprises a coke oven body, a raw gas recycling box and a filter box, the input end of the coke oven body is provided with a first connecting pipe, the end of the first connecting pipe is connected with the output end of the raw gas recycling box, and the input end of the raw gas recycling box is provided with a circulating pipe; the end part of the circulating pipe is connected with the output end of the filter box, a second connecting pipe is mounted at the output end of the coke oven body, and the end part of the second connecting pipe is connected with the output end of the filter box; the coke oven raw gas low-temperature waste heat recycling device is simple in structure and convenient to operate, the filter box is arranged at the raw gas output end of the coke oven body so as to filter gas, the detachable filter plate and the operation opening are arranged in the filter box so that the filter box can be conveniently cleaned, and the coke oven raw gas low-temperature waste heat recycling device is convenient to use. Therefore, the blockage of the filter plate caused by the intercepted dust is avoided.

Description

Technical Field

[0001] This patent relates to the field of waste heat recovery devices, specifically, a coke oven raw gas low-temperature waste heat recovery and utilization device. Background Art

[0002] Coke oven gas, also known as coke oven gas, is a high calorific value gas due to its high combustible components. It refers to a combustible gas produced when coking coal made from several bituminous coals is subjected to high-temperature dry distillation in a coking oven to produce coke and tar products. It is a by-product of the coking industry and a mixture. Raw coal gas refers to dusty coal gas;

[0003] However, the recovery device in the prior art still has some shortcomings. For example, since the raw coal gas is mixed with coal dust, it needs to be filtered before the waste heat can be recovered. However, most of the current existing filtering methods only use filter plates for filtering, which can easily cause the filter plates to be blocked after long-term use, affecting the subsequent normal waste heat recovery work. Therefore, the existing technology needs to be improved. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this patent is to provide a low-temperature waste heat recovery and utilization device for coke oven raw gas.

[0005] The technical solution adopted by the present patent to solve its technical problems is: a coke oven raw gas low-temperature waste heat recovery and utilization device, comprising a coke oven body, a raw gas recovery box and a filter box, a first connecting pipe is installed at the input end of the coke oven body, the end of the first connecting pipe is connected to the output end of the raw gas recovery box, a circulation pipe is installed at the input end of the raw gas recovery box, the end of the circulation pipe is connected to the output end of the filter box, a second connecting pipe is installed at the output end of the coke oven body, the end of the second connecting pipe is connected to the output end of the filter box;

[0006] A heat-conducting hose is wound around the left end of the outer portion of the first connecting pipe, a water storage bucket is provided at the left end of the heat-conducting hose, a connecting pipe b is installed at the top of the raw gas recovery box, a telescopic hose is installed at the end of the connecting pipe b, a connecting pipe a is installed at the end of the telescopic hose, an auxiliary through pipe is installed at the lower end of the water storage bucket, a sealing cover is sleeved between the auxiliary through pipe and the connecting pipe a, and a circulating pump is installed on both the first connecting pipe and the circulating pipe;

[0007] The sealing cover is provided with sealing openings at both the upper and lower ends, the end of the connecting pipe a is inserted into the sealing opening at one end, and the end of the auxiliary through pipe is inserted into the sealing opening at the other end. The outer wall of the auxiliary through pipe is provided with an external thread, and the inner wall of the sealing cover is provided with an internal thread, and the external thread matches the internal thread.

[0008] Furthermore, a limiting plate is installed on the outside of the connecting tube b, and the limiting plate is arranged in the sealing cover. An annular rubber plate is sleeved on the upper end of the limiting plate on the outside of the connecting tube b, and the diameters of the limiting plate and the annular rubber plate are both larger than the diameter of the sealing port.

[0009] Furthermore, an annular pressing plate is installed at the lower end of the annular rubber plate, and extrusion sheets are evenly installed at the end edge of the annular pressing plate.

[0010] Furthermore, an air collecting hood is installed at the outer upper end of the auxiliary through pipe, and handles are installed at both left and right ends of the sealing cover.

[0011] Furthermore, a filter screen is installed on the right side of the filter box, a dosing screen is installed on the left side wall of the filter screen, a receiving plate is installed on the lower end of the right inner wall of the filter box, and the left end of the receiving plate is connected to the filter screen.

[0012] Furthermore, a cleaning square opening is provided at the right end of the front side wall of the filter box, and a closed baffle is installed in the cleaning square opening.

[0013] The beneficial effects of this patent are:

[0014] The low-temperature waste heat recovery and utilization device for raw gas from coke oven has a simple structure and is easy to operate. A filter box is arranged at the raw gas output end of the coke oven body to filter the raw gas, and a detachable filter plate and an operation port are arranged inside the filter box to facilitate cleaning of the filter box, thereby avoiding clogging of the filter plate due to intercepted dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of this patent.

[0016] Figure 2 This is a cross-sectional view of the sealing cover of this patent.

[0017] Figure 3 This is a schematic diagram of the interior of the filter box of this patent.

[0018] Figure 4 This is a schematic diagram of the structure of Part A of this patent.

[0019] In the figure: 1 coke oven body, 2 raw gas recovery box, 3 filter box, 4 heat conduction hose, 5 first connecting pipe, 6 water storage hopper, 7 connecting pipe a, 8 telescopic hose, 9 connecting pipe b, 10 sealing cover, 11 auxiliary through pipe, 12 circulation pipe, 13 circulation pump, 14 cleaning square mouth, 15 closing baffle, 16 second connecting pipe, 17 sealing mouth, 18 external thread, 19 internal thread, 20 handle, 21 water collecting cover, 22 limit plate, 23 extrusion sheet, 24 annular pressure plate, 25 annular rubber plate, 26 filter screen plate, 27 receiving plate, 28 dosing screen plate. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0021] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 This is a schematic diagram of the structure of the patent, a coke oven raw gas low-temperature waste heat recovery and utilization device, comprising a coke oven body 1, a raw gas recovery box 2 and a filter box 3, characterized in that: a first connecting pipe 5 is installed at the input end of the coke oven body 1, the end of the first connecting pipe 5 is connected to the output end of the raw gas recovery box 2, a circulation pipe 12 is installed at the input end of the raw gas recovery box 2, the end of the circulation pipe 12 is connected to the output end of the filter box 3, a second connecting pipe 16 is installed at the output end of the coke oven body 1, the end of the second connecting pipe 16 is connected to the output end of the filter box 3, and the filter box 3 is connected to the coke oven body 1 through the second connecting pipe 16, thereby forming a circulation system;

[0022] A heat-conducting hose 4 is wound around the left end of the outer portion of the first connecting pipe 5, a water storage bucket 6 is provided at the left end of the heat-conducting hose 4, a connecting pipe b9 is installed at the top of the raw gas recovery box 2, a telescopic hose 8 is installed at the end of the connecting pipe b9, a connecting pipe a7 is installed at the end of the telescopic hose 8, an auxiliary through pipe 11 is installed at the lower end of the water storage bucket 6, a sealing cover 10 is sleeved between the auxiliary through pipe 11 and the connecting pipe a7, and a circulating pump 13 is installed on both the first connecting pipe 5 and the circulating pipe 12;

[0023] Sealing openings 17 are provided at both the upper and lower ends of the sealing cover 10. The end of the connecting pipe b9 is inserted into the sealing opening 17 at one end, and the end of the auxiliary through-tube 11 is inserted into the sealing opening 17 at the other end. The outer wall of the auxiliary through-tube 11 is provided with an external thread 18, and the inner wall of the sealing cover 10 is provided with an internal thread 19. The external thread 18 cooperates with the internal thread 19, so that the sealing cover 10 is installed on the outside of the auxiliary through-tube 11.

[0024] A limit plate 22 is fixedly installed on the outside of the connecting pipe b 9, and the limit plate 22 is arranged in the sealing cover 10. An annular rubber plate 25 is sleeved on the upper end of the limit plate 22 on the outside of the connecting pipe b 9. The diameters of the limit plate 22 and the annular rubber plate 25 are both larger than the diameter of the sealing port 17.

[0025] An annular pressure plate 24 is installed at the lower end of the annular rubber plate 25, and extrusion sheets 23 are evenly installed at the end edges of the annular pressure plate 24. When the sealing cover 10 is installed on the auxiliary through pipe 11, the annular rubber plate 25 is squeezed with the limiting plate 22 to seal the sealing opening 17 at the upper end.

[0026] A water collecting cover 21 is installed at the outer upper end of the auxiliary through pipe 11 to facilitate connection with the connecting pipe b9, and handles 20 are installed at both left and right ends of the sealing cover 10.

[0027] A filter screen plate 26 is installed on the right side of the interior of the filter box 3. The filter screen plate 26 is made of metal. A dosing screen plate 28 is installed on the left side wall of the filter screen plate 26. Drugs for removing rust can be placed on the dosing screen plate 28. A receiving plate 27 is installed on the lower end of the right inner wall of the filter box 3. The left end of the receiving plate 27 is connected to the filter screen plate 26, and impurities filtered from the filter screen plate 26 can fall into the receiving plate 27.

[0028] A cleaning square opening 14 is provided at the right end of the front side wall of the filter box 3 , and a closing baffle 15 is installed in the cleaning square opening 14 . Impurities on the receiving plate 27 can be cleaned through the cleaning square opening 14 , and the cleaning square opening 14 is sealed by the closing baffle 15 .

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A coke oven raw gas low-temperature waste heat recovery and utilization device, comprising a coke oven body (1), a raw gas recovery box (2) and a filter box (3), characterized in that: A first connecting pipe (5) is installed at the input end of the coke oven body (1), the end of the first connecting pipe (5) is connected to the output end of the raw gas recovery box (2), a circulation pipe (12) is installed at the input end of the raw gas recovery box (2), the end of the circulation pipe (12) is connected to the output end of the filter box (3), and a second connecting pipe (16) is installed at the output end of the coke oven body (1), the end of the second connecting pipe (16) is connected to the output end of the filter box (3); A heat-conducting hose (4) is wound around the left end of the first connecting pipe (5), a water storage bucket (6) is arranged at the left end of the heat-conducting hose (4), a connecting pipe b (9) is installed at the top of the raw gas recovery box (2), a telescopic hose (8) is installed at the end of the connecting pipe b (9), a connecting pipe a (7) is installed at the end of the telescopic hose (8), an auxiliary through pipe (11) is installed at the lower end of the water storage bucket (6), a sealing cover (10) is sleeved between the auxiliary through pipe (11) and the connecting pipe a (7), and a circulating pump (13) is installed on both the first connecting pipe (5) and the circulating pipe (12); The sealing cover (10) is provided with sealing openings (17) at both upper and lower ends. The end of the connecting pipe a (7) is inserted into the sealing opening (17) at one end, and the end of the auxiliary through pipe (11) is inserted into the sealing opening (17) at the other end. The outer wall of the auxiliary through pipe (11) is provided with an external thread (18), and the inner wall of the sealing cover (10) is provided with an internal thread (19), and the external thread (18) matches the internal thread (19).

2. The coke oven raw gas low temperature waste heat recovery and utilization device according to claim 1 is characterized in that: A limit plate (22) is installed on the outside of the connecting tube b (9), and the limit plate (22) is arranged in the sealing cover (10). An annular rubber plate (25) is sleeved on the upper end of the limit plate (22) on the outside of the connecting tube b (9), and the diameters of the limit plate (22) and the annular rubber plate (25) are both larger than the diameter of the sealing opening (17).

3. The coke oven raw gas low temperature waste heat recovery and utilization device according to claim 2 is characterized in that: An annular pressing plate (24) is installed at the lower end of the annular rubber plate (25), and extrusion sheets (23) are evenly installed at the end edge of the annular pressing plate (24).

4. The coke oven raw gas low temperature waste heat recovery and utilization device according to claim 1 is characterized in that: An air collecting hood (21) is installed at the outer upper end of the auxiliary through pipe (11), and handles (20) are installed at both left and right ends of the sealing cover (10).

5. The coke oven raw gas low temperature waste heat recovery and utilization device according to claim 1 is characterized in that: A filter screen plate (26) is installed on the right side of the interior of the filter box (3), a dosing screen plate (28) is installed on the left side wall of the filter screen plate (26), and a receiving plate (27) is installed on the lower end of the right side inner wall of the filter box (3), the left end of the receiving plate (27) is connected to the filter screen plate (26).

6. The coke oven raw gas low temperature waste heat recovery and utilization device according to claim 5 is characterized in that: A cleaning square opening (14) is provided at the right end of the front side wall of the filter box (3), and a closed baffle (15) is installed in the cleaning square opening (14).

Images