Coke oven waste gas heat recovery equipment

Abstract

The utility model relates to heat recovery equipment, in particular to coke oven waste gas heat recovery equipment which comprises a gas inlet pipe, a left end cover, a right end cover, a barrel body, a gas outlet pipe, a ceramic filter plate and a gas guide mechanism, one side of the barrel body is connected with the left end cover, the other side of the barrel body is connected with the right end cover, the left end cover is communicated with the gas inlet pipe, and the right end cover is communicated with the gas outlet pipe. The air inlet pipe is communicated with the interior of the barrel body, a plurality of air outlet pipes are evenly connected to the barrel body at intervals, the lower portions of the air outlet pipes are located in the barrel body, the upper portions of the air outlet pipes extend out of the barrel body, a plurality of air outlet holes are evenly formed in the portions, located in the barrel body, of the air outlet pipes at intervals, and a ceramic filter plate is arranged on the side, close to the air inlet pipe, of the barrel body. And an air guide mechanism is arranged in the barrel body. Before the waste gas is exhausted, the waste gas can pass through the breather pipe, so that water in the water injection area is heated, the effect of recycling heat energy in the waste gas is achieved, and heat pollution during exhaust of the waste gas can be reduced.

Description

Technical Field

[0001] This utility model relates to a heat recovery device, and more particularly to a coke oven exhaust gas heat recovery device. Background Technology

[0002] Coke oven gas refers to the waste gas released during the coking process when coal decomposes into coke, tar, and coal gas under high temperature and oxygen-deficient conditions. As an important component of the steel industry, the coke oven is not only a key facility for producing high-quality coke, but also a source of a large amount of waste gas. This waste gas contains various pollutants, posing potential hazards to the environment and human health.

[0003] Currently, the existing methods for treating coke oven exhaust gas are usually to directly discharge it through chimneys. However, simply treating exhaust gas through chimneys not only pollutes the surrounding environment, causing thermal and dust pollution, but also leads to a waste of thermal energy. Utility Model Content

[0004] In view of this, the present invention provides a coke oven exhaust gas heat recovery device.

[0005] The technical solution is as follows: A coke oven waste gas heat recovery device includes an inlet pipe, a left end cover, a right end cover, a barrel body, an outlet pipe, a ceramic filter plate, and a gas guiding mechanism. The left end cover is connected to one side of the barrel body, and the right end cover is connected to the other side of the barrel body. The inlet pipe is connected to the left end cover and communicates with the inside of the barrel body. Multiple outlet pipes are evenly spaced on the barrel body. The lower part of the outlet pipe is located inside the barrel body, and the upper part of the outlet pipe extends out of the barrel body. Multiple outlet holes are evenly spaced on the part of the outlet pipe located inside the barrel body. A ceramic filter plate is provided on the side of the barrel body near the inlet pipe. A gas guiding mechanism for conducting gas is provided inside the barrel body.

[0006] Furthermore, the air guiding mechanism includes a fixed plate and an air pipe. Fixed plates are connected to both sides of the barrel body. Both fixed plates are located on one side of the ceramic filter plate. The area between the two fixed plates is the water injection area. Multiple air pipes are evenly spaced between the two fixed plates.

[0007] Furthermore, it also includes an inlet pipe and an outlet pipe. The lower part of the barrel is connected to the inlet pipe, and the upper part of the barrel is connected to the outlet pipe. Both the inlet pipe and the outlet pipe are connected to the water injection area.

[0008] Furthermore, it also includes a cleaning mechanism, which includes a fan, a mounting bracket, a scraper, and a collection box. The mounting bracket is connected inside the air intake pipe, and the fan is rotatably connected to the mounting bracket. The scraper is connected to the drive shaft of the fan and is in contact with the side of the ceramic filter plate. A detachable collection box is provided in the lower part of the barrel body, and the collection box is located below the ceramic filter plate.

[0009] Furthermore, it also includes helical blades, which are installed inside the vent pipe.

[0010] Furthermore, it also includes a desulfurization mechanism, which includes an inlet valve, an inlet pipe, nozzles, a sponge column, an outlet pipe, and an outlet valve. The upper part of the right end cap is connected to the inlet pipe, and an inlet valve is installed at the inlet pipe. Multiple nozzles are evenly spaced on the inlet pipe, and the outlet end of the nozzle extends into the upper part of the gas outlet pipe. A sponge column is installed in the upper part of the gas outlet pipe, and the sponge column is located below the nozzle. The bottoms of the multiple gas outlet pipes are connected by an outlet pipe, and the lower part of the outlet pipe extends out of the barrel body. An outlet valve is installed at the bottom of the outlet pipe.

[0011] Furthermore, it also includes a shielding cover, which is connected between the upper part of the frontmost air outlet pipe and the rearmost air outlet pipe, and the shielding cover is located above the air outlet pipe.

[0012] Beneficial effects: 1. Before the exhaust gas is discharged, the exhaust gas can pass through the vent pipe to heat the water in the water injection area, thereby realizing the effect of recovering and utilizing the heat energy in the exhaust gas and reducing the thermal pollution when the exhaust gas is discharged.

[0013] 2. In the treatment of waste gas, this utility model can also filter impurities in the waste gas through a ceramic filter plate. After filtration, a desulfurizing agent can be sprayed through a nozzle, so that the harmful substances in the gas are removed before the gas is discharged, thereby reducing pollution when the gas is discharged. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a cross-sectional view of the present invention.

[0016] Figure 3 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0017] Figure 4 This is a cross-sectional view of the barrel body and the air outlet pipe of this utility model.

[0018] The components in the attached diagram are labeled as follows: 1_Inlet pipe, 2_Left end cap, 21_Right end cap, 3_Bucket body, 31_Ceramic filter plate, 4_Water inlet pipe, 41_Water outlet pipe, 5_Air outlet pipe, 51_Air outlet hole, 6_Fan, 61_Mounting bracket, 62_Scraper, 63_Collection box, 7_Fixing plate, 71_Ventilation pipe, 72_Spiral blade, 8_Liquid inlet valve, 81_Liquid inlet pipe, 82_Nozzle, 83_Sponge column, 84_Liquid outlet pipe, 85_Liquid outlet valve, 9_Shielding cover. Detailed Implementation

[0019] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] A coke oven exhaust heat recovery device, such as Figure 1 and Figure 2 As shown, the device includes an air inlet pipe 1, a left end cap 2, a right end cap 21, a barrel body 3, an air outlet pipe 5, a ceramic filter plate 31, and an air guiding mechanism. The left end cap 2 is connected to the left side of the barrel body 3, and the right end cap 21 is connected to the right side of the barrel body 3. The air inlet pipe 1 is connected to the left end cap 2 and is connected to the inside of the barrel body 3. Multiple air outlet pipes 5 are evenly spaced on the right side of the barrel body 3. The lower part of the air outlet pipe 5 is located inside the barrel body 3, and the upper part of the air outlet pipe 5 extends out of the barrel body 3. Multiple air outlet holes 51 are evenly spaced on the part of the air outlet pipe 5 located inside the barrel body 3. A ceramic filter plate 31 is provided on the left side inside the barrel body 3. An air guiding mechanism for conducting gas is provided inside the barrel body 3.

[0021] like Figure 1 and Figure 2 As shown, the air guiding mechanism includes a fixed plate 7 and an air pipe 71. Fixed plates 7 are connected to both the left and right sides of the barrel body 3. Both fixed plates 7 are located on the right side of the ceramic filter plate 31. The area between the two fixed plates 7 is the water injection area. Multiple air pipes 71 are evenly spaced between the two fixed plates 7. The left end of the air pipe 71 is connected to the left side of the barrel body 3, and the right end of the air pipe 71 is connected to the right side of the barrel body 3.

[0022] like Figure 1 and Figure 2 As shown, it also includes an inlet pipe 4 and an outlet pipe 41. The lower part of the barrel body 3 is connected to the inlet pipe 4, and the upper part of the barrel body 3 is connected to the outlet pipe 41. Both the inlet pipe 4 and the outlet pipe 41 are connected to the water injection area.

[0023] This equipment can be used when heat recovery of coke oven exhaust gas is required. In operation, the coke oven exhaust gas is first connected to the inlet pipe 1. The exhaust gas then enters the barrel 3 through the inlet pipe 1 and is filtered by the ceramic filter plate 31. The filtered gas then enters the ventilation pipe 71 through the fixing plate 7. At this time, water can be injected into the water injection area through the water inlet pipe 4. The water in the water injection area will come into contact with the ventilation pipe 71, and the heat from the gas will be conducted to the water through the ventilation pipe 71, heating the water. The heated water can be discharged through the water outlet pipe 41, while the gas passing through the ventilation pipe 71 enters the right side of the barrel 3 and finally enters the exhaust pipe 5 through the exhaust hole 51, and is then discharged through the exhaust pipe 5. In this way, heat recovery of the exhaust gas can be achieved, avoiding the waste of thermal energy.

[0024] like Figure 2 As shown, it also includes a cleaning mechanism, which includes a fan 6, a mounting bracket 61, a scraper 62, and a collection box 63. The mounting bracket 61 is connected to the right side of the air inlet pipe 1, and the fan 6 is rotatably connected to the mounting bracket 61. The scraper 62 is connected to the drive shaft of the fan 6. The scraper 62 is attached to the left side of the ceramic filter plate 31 so that the rotation of the scraper 62 can scrape off the impurities attached to the ceramic filter plate 31. A detachable collection box 63 is provided in the lower left part of the barrel body 3. The collection box 63 is located below the ceramic filter plate 31.

[0025] When the exhaust gas passes through the water inlet pipe 4, it blows the fan 6 to rotate. When the fan 6 rotates, it drives the scraper 62 to rotate. The rotation of the scraper 62 can scrape off the impurities attached to the ceramic filter plate 31. The scraped-off impurities will fall into the collection box 63 and be collected by the collection box 63. In this way, the impurities attached to the ceramic filter plate 31 can be automatically cleaned.

[0026] like Figure 2 As shown, it also includes a spiral blade 72. The spiral blade 72 is installed inside the vent pipe 71. When the exhaust gas enters the vent pipe 71, it will flow along the spiral blade 72. The spiral blade 72 increases the distance the exhaust gas moves in the vent pipe 71, allowing the exhaust gas to move in the vent pipe 71 for a longer time, so that the heat in the exhaust gas can be better conducted to the vent pipe 71.

[0027] like Figure 3 and Figure 4As shown, it also includes a desulfurization mechanism, which includes an inlet valve 8, an inlet pipe 81, a nozzle 82, a sponge column 83, an outlet pipe 84, and an outlet valve 85. The upper part of the right end cover 21 is connected to the inlet pipe 81, and the inlet valve 8 is provided at the inlet pipe 81. Multiple nozzles 82 are evenly spaced on the inlet pipe 81. The outlet end of the nozzle 82 extends into the upper part of the gas outlet pipe 5. A sponge column 83 is provided in the upper part of the gas outlet pipe 5. The sponge column 83 is located below the nozzle 82. The bottoms of the multiple gas outlet pipes 5 are connected by an outlet pipe 84. The lower part of the outlet pipe 84 extends out of the barrel body 3, and the bottom of the outlet pipe 84 is provided with an outlet valve 85.

[0028] In use, the pipe for adding desulfurizing agent can be connected to the inlet pipe 81. When venting, the inlet valve 8 can be opened, and the desulfurizing agent will enter the nozzle 82 through the inlet pipe 81. The nozzle 82 will then spray the desulfurizing agent onto the sponge column 83. Excess desulfurizing agent will fall into the bottom of the outlet pipe 5. When the gas is discharged through the outlet pipe 5, it will pass through the sponge column 83. The desulfurizing agent can remove sulfur from the gas, thereby removing harmful substances from the gas. When it is necessary to discharge the excess desulfurizing agent in the outlet pipe 5, the outlet valve 85 can be opened to discharge the excess desulfurizing agent. In this way, the device can be used to remove harmful substances from the gas.

[0029] like Figure 4 As shown, it also includes a cover 9. The cover 9 is connected between the upper part of the frontmost air outlet pipe 5 and the rearmost air outlet pipe 5. The cover 9 is located above the air outlet pipe 5. When it rains, the cover 9 can block rainwater and prevent rainwater from entering the air outlet pipe 5.

[0030] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A coke oven exhaust gas heat recovery apparatus, characterized by, The utility model provides a kind of air purifier, including air inlet pipe (1), left end cover (2), right end cover (21), barrel (3), air outlet pipe (5), ceramic filter plate (31) and air guide mechanism, one side of the barrel (3) is connected with left end cover (2), the other side of the barrel (3) is connected with right end cover (21), air inlet pipe (1) is communicated on the left end cover (2), air inlet pipe (1) is communicated with the inside of barrel (3), the barrel (3) is evenly spaced and connected with multiple air outlet pipes (5), the lower part of the air outlet pipe (5) is located in the barrel (3), the upper part of the air outlet pipe (5) is stretched out of the barrel (3), the part of the air outlet pipe (5) in the barrel (3) is evenly spaced and provided with multiple air outlet holes (51), the side of the barrel (3) close to air inlet pipe (1) is provided with ceramic filter plate (31), the barrel (3) is equipped with air guide mechanism for conducting gas.

2. A coke oven exhaust heat recovery apparatus according to claim 1, characterized by Air guide mechanism includes fixed plate (7) and air pipe (71), both sides in the barrel (3) are connected with fixed plate (7), two fixed plates (7) are located on one side of ceramic filter plate (31), the area between two fixed plates (7) is water injection area, multiple air pipes (71) are evenly spaced and communicated between two fixed plates (7).

3. A coke oven exhaust heat recovery apparatus according to claim 2, characterized by It also includes water inlet pipe (4) and water outlet pipe (41), the lower part in the barrel (3) is communicated with water inlet pipe (4), the upper part in the barrel (3) is communicated with water outlet pipe (41), the water inlet pipe (4) and the water outlet pipe (41) are communicated in water injection area.

4. A coke oven exhaust heat recovery apparatus according to claim 3, characterized by It also includes cleaning mechanism, the cleaning mechanism includes fan (6), mounting bracket (61), scraper (62) and collection box (63), the water inlet pipe (1) is connected with mounting bracket (61), the mounting bracket (61) is rotatably connected with fan (6), the transmission shaft of the fan (6) is connected with scraper (62), the scraper (62) is attached to the side of ceramic filter plate (31), the lower part in the barrel (3) is provided with detachable collection box (63), the collection box (63) is located below the ceramic filter plate (31).

5. A coke oven exhaust gas heat recovery apparatus according to claim 4, characterized by It also includes spiral blade (72), the air pipe (71) is installed with spiral blade (72).

6. A coke oven exhaust gas heat recovery apparatus according to claim 5, characterized by It also includes sulfur removal mechanism, the sulfur removal mechanism includes liquid inlet valve (8), liquid inlet pipe (81), spray head (82), sponge column (83), liquid outlet pipe (84) and liquid outlet valve (85), the upper part of right end cover (21) is connected with liquid inlet pipe (81), the liquid inlet valve (8) is arranged at liquid inlet pipe (81), multiple spray heads (82) are evenly spaced and arranged on liquid inlet pipe (81), the liquid outlet end of the spray head (82) is stretched into the upper part in the air outlet pipe (5), the upper part in the air outlet pipe (5) is provided with sponge column (83), the sponge column (83) is located below the spray head (82), the liquid outlet pipe (84) is communicated between the bottom of multiple air outlet pipes (5), the lower part of the liquid outlet pipe (84) is penetrated out of the barrel (3), the liquid outlet valve (85) is arranged at the bottom of the liquid outlet pipe (84).

7. A coke oven exhaust gas heat recovery apparatus according to claim 6, characterized by Further, a shielding cover (9) is provided between the frontmost air outlet pipe (5) and the upper portion of the rearmost air outlet pipe (5), and the shielding cover (9) is positioned above the air outlet pipes (5). Further, a shielding cover (9) is provided between the frontmost air outlet pipe (5) and the upper portion of the rearmost air outlet pipe (5), and the shielding cover (9) is positioned above the air outlet pipes (5). Further, a shielding cover (9) is provided between the frontmost air outlet pipe (5) and the upper portion of the

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