Smoke dust collection device for ascension pipe of coke oven

Abstract

The utility model relates to the technical field of coke oven flue gas treatment, and discloses a coke oven ascension pipe flue gas dust collection device which comprises a treatment box, a gas inlet pipe is fixedly connected to the left side of the treatment box, a gas outlet pipe is fixedly connected to the upper portion of the treatment box, and a drain valve is fixedly installed on the front face of the treatment box. A first dust filtering plate and a second dust filtering plate are fixedly connected to the inner wall of the treatment box, the second dust filtering plate is arranged on the right side of the first dust filtering plate, a cleaning mechanism is arranged on the left side of the first dust filtering plate, and a spraying mechanism is arranged between the first dust filtering plate and the second dust filtering plate. According to the flue gas dust collecting device for the coke oven ascension pipe, the cleaning mechanism is arranged, dust is prevented from blocking the first dust filtering plate, the dust filtering efficiency is improved, meanwhile, the dust filtering effect is improved, the spraying mechanism is arranged, water mist is sprayed out to adsorb and settle residual solid particles in flue gas, meanwhile, the spraying range is widened, the flue gas is further purified, and the dust collecting effect is improved. And the treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coke oven flue gas treatment, in particular to a coke oven riser flue gas dust collecting device. Background Art

[0002] Coking production is an important part of the long-process steel smelting. It has developed rapidly in recent years, but the environmental pollution problems it has brought are also relatively serious. The water seal cover of the riser needs to be opened 20-30 minutes before the coke oven is scheduled to come out of the furnace and push the coke. The purpose is to check whether the raw gas export system is blocked and clean it. Before the water seal cover of the riser is opened, the raw gas in the riser burns violently at the water seal cover to produce high-temperature flue gas. In order to prevent the smoke dust in the flue gas after high-temperature combustion from entering the atmospheric environment and causing air pollution, the smoke dust in the riser needs to be filtered and collected by a flue gas dust collection device.

[0003] According to the Chinese patent publication number CN 212790320 U, a flue gas dust collecting device for special cement production is disclosed, which relates to the field of flue gas dust collecting, and includes a box body, a water tank and a base, a power interface is installed on the upper part of the left side wall of the box body, an air inlet is installed in the middle part of the left side wall of the box body, an air inlet pipe is installed in the middle part of the left side wall of the box body, the left end of the air inlet pipe is connected with the right end of the air inlet, an air pump is connected in the middle of the air inlet pipe, and the lower end of the air pump is fixedly connected to the left side of the bottom end of the box body; in the utility model, the third filter screen performs secondary filtering on the flue gas, and the filtered dust falls into the first collection chamber for collection, the flue gas enters the water tank from the first outlet pipe, the liquid filters impurities in the flue gas, and the impurities in the liquid pass through the second filter screen and enter the second collection chamber for collection, the first collection chamber and the second collection chamber collect dust in the device, which is convenient for cleaning the device, saving time and improving efficiency.

[0004] The flue gas dust collecting device can also be used in coking production. However, there is no cleaning mechanism in the dust collecting device to clean the filter in time, so that the filter effect decreases after a period of use, affecting the dust filtering effect. At the same time, there is no spray mechanism to further purify the flue gas, and the treatment effect is not good. For this reason, we propose a coke oven riser flue gas dust collecting device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a coke oven riser smoke dust collecting device.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coke oven riser flue gas dust collecting device, comprising a treatment box, an air inlet pipe is fixedly connected to the left side of the treatment box, an air outlet pipe is fixedly connected to the top of the treatment box, a drain valve is fixedly installed on the front of the treatment box, a first dust filter plate and a second dust filter plate are fixedly connected to the inner wall of the treatment box, the second dust filter plate is arranged on the right side of the first dust filter plate, a cleaning mechanism is arranged on the left side of the first dust filter plate, and a spray mechanism is arranged between the first dust filter plate and the second dust filter plate.

[0009] Preferably, the front and back sides of the processing box are fixedly connected with positioning blocks, and the number of the positioning blocks is eight and they are symmetrically arranged at the four corners of the front and back sides of the processing box. The positioning blocks are arranged to facilitate the installation and fixation of the entire device, thereby improving the stability of the device.

[0010] Preferably, the cleaning mechanism includes a mounting frame, a forward and reverse motor, a first rotating rod, a cam, a fixed plate, a striking rod, a connecting block, a connecting spring and a dust collection box. The mounting frame is fixedly connected to the top of the processing box, and the forward and reverse motor is fixedly installed above the mounting frame. The output end of the forward and reverse motor is fixedly connected to the first rotating rod through a coupling. The first rotating rod passes through the mounting frame and the top of the processing box through a bearing. The cam is fixedly connected to the lower end of the first rotating rod, and the cam is driven to rotate by starting the forward and reverse motor.

[0011] Preferably, the fixed plate is fixedly connected to the top of the inner wall of the processing box, the hitting rod is movably plugged into the bottom of the fixed plate, the connecting block is fixedly connected to the left end of the hitting rod, the two ends of the connecting spring are respectively fixedly connected to the fixed plate and the connecting block and the connecting spring is sleeved on the outer wall of the hitting rod, and the dust collecting box is fixedly installed at the bottom of the processing box, and the first dust filter plate is hit by the hitting rod, so that the dust is knocked down and enters the dust collecting box for collection.

[0012] Preferably, the spray mechanism includes a mounting plate, a connecting box, a water inlet pipe, a spray head, a pulley, a second rotating rod, a first bevel gear and a second bevel gear. The mounting plate is fixedly connected to the top of the inner wall of the processing box and the number of the mounting plates is two. The two sides of the connecting box are rotatably connected to the two mounting plates through bearings. The water inlet pipe is fixedly connected to the top of the connecting box and the water inlet pipe passes through the top of the processing box. The spray head is fixedly installed at the bottom of the connecting box and the number of the spray heads is five. Clean water is introduced into the connecting box through the water inlet pipe and then sprayed out through the spray head.

[0013] Preferably, the second rotating rod passes through the top of the processing box through a bearing, and the two sides of the pulley are fixedly installed on the outer walls of the first rotating rod and the second rotating rod respectively, the first bevel gear is fixedly connected to the lower end of the second rotating rod, and the second bevel gear is fixedly connected to the connecting box through a rotating shaft, and the first bevel gear is meshed with the second bevel gear. Through the linkage action of the pulley, the first bevel gear and the second bevel gear, the connecting box and the spray head are driven to rotate and swing.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a coke oven riser flue gas dust collecting device, which has the following beneficial effects:

[0016] 1. The dust collecting device for flue gas in a coke oven riser is provided with a cleaning mechanism to hit the first dust filter plate to clean and collect dust, thereby preventing dust from blocking the first dust filter plate, thereby improving the dust filtering efficiency and the dust filtering effect.

[0017] 2. This coke oven riser flue gas dust collecting device is equipped with a spray mechanism to spray water mist to adsorb and settle the solid particles remaining in the flue gas. At the same time, the direction of the spray head is rotated and swung to increase the spray range, so that the flue gas is further purified and the treatment effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model in front cross-section;

[0021] Figure 3 It is an enlarged view of point A of the utility model;

[0022] Figure 4 It is an enlarged view of point B of the present utility model.

[0023] In the figure: 1, treatment box; 2, air inlet pipe; 3, air outlet pipe; 4, drain valve; 5, positioning block; 6, first dust filter plate; 7, second dust filter plate; 8, cleaning mechanism; 801, mounting frame; 802, forward and reverse motor; 803, first rotating rod; 804, cam; 805, fixing plate; 806, striking rod; 807, connecting block; 808, connecting spring; 809, dust collecting box; 9, spray mechanism; 901, mounting plate; 902, connecting box; 903, water inlet pipe; 904, spray head; 905, pulley; 906, second rotating rod; 907, first bevel gear; 908, second bevel gear. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] like Figure 1-4 As shown, the utility model provides a coke oven riser flue gas dust collecting device, comprising a treatment box 1, an air inlet pipe 2 is fixedly connected to the left side of the treatment box 1, an air outlet pipe 3 is fixedly connected to the top of the treatment box 1, a drain valve 4 is fixedly installed on the front of the treatment box 1, a first dust filter plate 6 and a second dust filter plate 7 are fixedly connected to the inner wall of the treatment box 1, the second dust filter plate 7 is arranged on the right side of the first dust filter plate 6, a cleaning mechanism 8 is arranged on the left side of the first dust filter plate 6, and a spray mechanism 9 is arranged between the first dust filter plate 6 and the second dust filter plate 7.

[0027] The front and back of the processing box 1 are fixedly connected with positioning blocks 5. There are eight positioning blocks 5 and they are symmetrically arranged at the four corners of the front and back of the processing box 1. The positioning blocks 5 are arranged to facilitate the installation and fixation of the entire device, thereby improving the stability of the device.

[0028] The cleaning mechanism 8 includes a mounting frame 801, a forward and reverse motor 802, a first rotating rod 803, a cam 804, a fixed plate 805, a striking rod 806, a connecting block 807, a connecting spring 808 and a dust collecting box 809. The mounting frame 801 is fixedly connected to the top of the processing box 1, and the forward and reverse motor 802 is fixedly installed above the mounting frame 801. The output end of the forward and reverse motor 802 is fixedly connected to the first rotating rod 803 through a coupling. The first rotating rod 803 passes through the mounting frame 801 and the top of the processing box 1 through a bearing. The cam 804 is fixedly connected to the lower end of the first rotating rod 803, and the cam 804 is driven to rotate by starting the forward and reverse motor 802.

[0029] The fixed plate 805 is fixedly connected to the top of the inner wall of the processing box 1, the striking rod 806 is movably plugged into the bottom of the fixed plate 805, the connecting block 807 is fixedly connected to the left end of the striking rod 806, the two ends of the connecting spring 808 are respectively fixedly connected to the fixed plate 805 and the connecting block 807 and the connecting spring 808 is sleeved on the outer wall of the striking rod 806, and the dust collecting box 809 is fixedly installed at the bottom of the processing box 1. The first dust filter plate 6 is struck by the striking rod 806, so that the dust is knocked down and enters the dust collecting box 809 for collection.

[0030] In this embodiment, a cleaning mechanism 8 is provided to hit the first dust filter plate 6 to clean and collect dust, thereby preventing dust from blocking the first dust filter plate 6, thereby improving the dust filtering efficiency and the dust filtering effect.

[0031] Example 2

[0032] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: the spray mechanism 9 includes a mounting plate 901, a connecting box 902, a water inlet pipe 903, a spray head 904, a pulley 905, a second rotating rod 906, a first bevel gear 907 and a second bevel gear 908, the mounting plate 901 is fixedly connected to the top of the inner wall of the processing box 1 and the number of the mounting plates 901 is two, the two sides of the connecting box 902 are rotatably connected to the two mounting plates 901 through bearings, the water inlet pipe 903 is fixedly connected to the top of the connecting box 902 and the water inlet pipe 903 passes through the top of the processing box 1, the spray head 904 is fixedly installed at the bottom of the connecting box 902 and the number of the spray heads 904 is five, clean water is introduced into the connecting box 902 through the water inlet pipe 903, and then sprayed out through the spray head 904.

[0033] The second rotating rod 906 passes through the top of the processing box 1 through a bearing, and the two sides of the pulley 905 are fixedly installed on the outer walls of the first rotating rod 803 and the second rotating rod 906 respectively. The first bevel gear 907 is fixedly connected to the lower end of the second rotating rod 906, and the second bevel gear 908 is fixedly connected to the connecting box 902 through a rotating shaft. The first bevel gear 907 is meshed with the second bevel gear 908, and the connecting box 902 and the spray head 904 are driven to rotate and swing through the linkage action of the pulley 905, the first bevel gear 907 and the second bevel gear 908.

[0034] In this embodiment, a spray mechanism 9 is provided to spray water mist to adsorb and settle the solid particles remaining in the flue gas. At the same time, the direction of the spray head 904 is rotated and swung to increase the spray range, so that the flue gas is further purified and the treatment effect is improved.

[0035] The following is a detailed description of the working principle of the coke oven riser flue gas dust collection device. Figure 1-4As shown, when in use, the smoke enters the interior of the treatment box 1 from the air inlet pipe 2, and is initially filtered through the first dust filter plate 6. The forward and reverse motor 802 is started to drive the first rotating rod 803 and the cam 804 to rotate forward and reverse, so that the side of the cam 804 pushes the connecting block 807 and the striking rod 806 to move, and the connecting spring 808 is stretched. When the cam 804 rotates to a certain position, the cam 804 is separated from the connecting block 807. Under the elastic action of the connecting spring 808, the striking rod 806 is reset to strike the first dust filter plate 6, so that the dust on the first dust filter plate 6 falls off due to the vibration, and then enters the collecting The smoke is collected in the dust box 809, and enters between the first dust filter plate 6 and the second dust filter plate 7. When the first rotating rod 803 rotates, due to the linkage of the pulley 905, the second rotating rod 906 rotates at the same time, and because the first bevel gear 907 is engaged with the second bevel gear 908, the connecting box 902 and the spray head 904 rotate and swing, so that the spray head 904 swings while spraying, thereby increasing the spraying range. The smoke is further purified between the first dust filter plate 6 and the second dust filter plate 7, and the smoke is filtered for the second time through the second dust filter plate 7, and finally discharged from the exhaust pipe 3.

Claims

1. A coke oven riser flue gas dust collecting device, comprising a treatment box (1), characterized in that: The left side of the processing box (1) is fixedly connected to an air inlet pipe (2), the top of the processing box (1) is fixedly connected to an air outlet pipe (3), the front of the processing box (1) is fixedly installed with a drain valve (4), the inner wall of the processing box (1) is fixedly connected to a first dust filter plate (6) and a second dust filter plate (7), the second dust filter plate (7) is arranged on the right side of the first dust filter plate (6), a cleaning mechanism (8) is arranged on the left side of the first dust filter plate (6), and a spray mechanism (9) is arranged between the first dust filter plate (6) and the second dust filter plate (7).

2. A coke oven riser flue gas dust collecting device according to claim 1, characterized in that: Positioning blocks (5) are fixedly connected to the front and back sides of the processing box (1); the number of the positioning blocks (5) is eight and they are symmetrically arranged at the four corners of the front and back sides of the processing box (1).

3. The coke oven riser flue gas dust collecting device according to claim 1, characterized in that: The cleaning mechanism (8) comprises a mounting frame (801), a forward and reverse motor (802), a first rotating rod (803), a cam (804), a fixing plate (805), a striking rod (806), a connecting block (807), a connecting spring (808) and a dust collecting box (809); the mounting frame (801) is fixedly connected to the top of the processing box (1); the forward and reverse motor (802) is fixedly mounted above the mounting frame (801); the output end of the forward and reverse motor (802) is fixedly connected to the first rotating rod (803) via a coupling; the first rotating rod (803) passes through the mounting frame (801) and the top of the processing box (1) via a bearing; and the cam (804) is fixedly connected to the lower end of the first rotating rod (803).

4. A coke oven riser flue gas dust collecting device according to claim 3, characterized in that: The fixing plate (805) is fixedly connected to the top of the inner wall of the processing box (1); the striking rod (806) is movably plugged into the bottom of the fixing plate (805); the connecting block (807) is fixedly connected to the left end of the striking rod (806); the two ends of the connecting spring (808) are respectively fixedly connected to the fixing plate (805) and the connecting block (807); and the connecting spring (808) is sleeved on the outer wall of the striking rod (806); and the dust collecting box (809) is fixedly installed at the bottom of the processing box (1).

5. The coke oven riser flue gas dust collecting device according to claim 1, characterized in that: The spray mechanism (9) comprises a mounting plate (901), a connecting box (902), a water inlet pipe (903), a spray head (904), a pulley (905), a second rotating rod (906), a first bevel gear (907) and a second bevel gear (908); the mounting plate (901) is fixedly connected to the top of the inner wall of the processing box (1), and the number of the mounting plates (901) is two; both sides of the connecting box (902) are rotatably connected to the two mounting plates (901) via bearings; the water inlet pipe (903) is fixedly connected to the top of the connecting box (902) and the water inlet pipe (903) passes through the top of the processing box (1); the spray head (904) is fixedly installed at the bottom of the connecting box (902), and the number of the spray heads (904) is five.

6. A coke oven riser flue gas dust collecting device according to claim 5, characterized in that: The second rotating rod (906) passes through the top of the processing box (1) through a bearing, and the two sides of the pulley (905) are fixedly installed on the outer walls of the first rotating rod (803) and the second rotating rod (906) respectively. The first bevel gear (907) is fixedly connected to the lower end of the second rotating rod (906), and the second bevel gear (908) is fixedly connected to the connecting box (902) through a rotating shaft. The first bevel gear (907) is meshed with the second bevel gear (908).

Images