Cooling and dust falling treatment equipment for blast furnace exhaust port

Abstract

The utility model relates to the technical field of blast furnace exhaust port cooling and dust falling treatment, and discloses blast furnace exhaust port cooling and dust falling treatment equipment which comprises an air blower, the power output end of the air blower is fixedly communicated with an air inlet pipe, and the end, away from the air blower, of the air inlet pipe is fixedly communicated with a cooling mechanism which comprises a cooling box. The end, away from the air blower, of the air inlet pipe fixedly communicates with the right side face of the cooling box, two partition plates are fixedly connected to the inner wall of the cooling box, a plurality of flow slowing plates are fixedly connected to the inner wall of the cooling box, the right side face of each flow slowing plate is fixedly connected with the left side face of one partition plate, and a water tank is fixedly connected to the inner wall of the cooling box. A water pump is arranged in the water tank, and the power output end of the water pump fixedly communicates with a water pumping pipe. According to the cooling and dust-falling treatment equipment for the blast furnace exhaust port, the aim of cooling and dust falling can be sufficiently achieved through slow flow of smoke, and the problem that the cooling and dust-falling effect is poor due to the too high flow speed of the smoke is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling and dust removal treatment for blast furnace exhaust ports, and specifically relates to a cooling and dust removal treatment device for blast furnace exhaust ports. Background Technique

[0002] Blast furnace gas is a combustible gas by-produced in the blast furnace ironmaking production process. Its approximate components are carbon dioxide, carbon monoxide, hydrogen, nitrogen, hydrocarbons and a small amount of sulfur dioxide. The dust particle size is below five hundred microns, mainly iron, ferrous oxide, alumina, silica, magnesia and coke powder.

[0003] The existing utility model with the authorized announcement number CN209555276U discloses a blast furnace bunker exhaust device, which includes a main body assembly, a control assembly, an exhaust assembly and a dust removal assembly. The main body assembly includes a fixing frame, a first support leg, a shell, a blast furnace box, a material box, a first sealing valve, a material flow valve, a receiving hopper, a pressure equalizing valve and a chute.

[0004] Adopting the above technical solution, the dust generated is taken away by the air entering the bunker through the setting of a bag filter, then passes through a suction fan, and then is filtered by the bag filter to become clean gas and then discharged, reducing environmental pollution. However, in the above technical solution, the flue gas discharge speed is too fast, the gas filtration and reaction time are short, and omissions may occur, resulting in the problems of unobvious flue gas filtration and cooling effects and poor discharge effects.

[0005] Therefore, those skilled in the art provide a cooling and dust removal treatment device for blast furnace exhaust ports to solve the problems raised in the above background technique. Content of the Utility Model

[0006] The purpose of the utility model is to provide a cooling and dust removal treatment device for blast furnace exhaust ports to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution:

[0008] A cooling and dust removal treatment device for blast furnace exhaust ports includes a blower. The output end of the power of the blower is fixedly communicated with an air inlet pipe, and the end of the air inlet pipe away from the blower is fixedly communicated with a cooling mechanism;

[0009] The cooling mechanism includes a cooling box. One end of the intake pipe away from the blower is fixedly communicated with the right side surface of the cooling box. Two partition plates are fixedly connected to the inner wall of the cooling box. A number of flow retarder plates are fixedly connected to the inner wall of the cooling box. The right side surface of each flow retarder plate is fixedly connected to the left side surface of one of the partition plates. A water tank is fixedly connected to the inner wall of the cooling box. A water pump is arranged inside the water tank. The output end of the power of the water pump is fixedly communicated with a water suction pipe. One end of the water suction pipe away from the water pump sequentially penetrates through the water tank and the cooling box and is fixedly communicated with a water spray pipe. A number of nozzles are fixedly communicated with the outer surface of the water spray pipe. A filter is arranged outside the cooling box. A sewage pipe is fixedly communicated with the front surface of the filter. One end of the sewage pipe away from the filter penetrates through the cooling box and extends into the interior of the cooling box. A water adding pipe is fixedly communicated with the front surface of the filter. One end of the water adding pipe away from the filter sequentially penetrates through the cooling box and the water tank and extends into the interior of the water tank. The left side surface of the cooling box is fixedly communicated with an exhaust pipe.

[0010] As a further scheme of the present utility model: A drain pipe is fixedly communicated with the front surface of the cooling box. A sewage valve is fixedly communicated with the outer surface of the drain pipe.

[0011] As a further scheme of the present utility model: Three hanging frames are fixedly connected to the outer surface of the water spray pipe. The upper surface of each hanging frame is fixedly connected to the inner top wall of the cooling box.

[0012] As a further scheme of the present utility model: A support frame is arranged outside the cooling box. A fixing frame is fixedly connected to the inner wall of the support frame. The inner wall of the fixing frame is fixedly connected to the outer surface of the exhaust pipe.

[0013] As a further scheme of the present utility model: A bracket is fixedly connected to the outer surface of the support frame. The upper surface of the bracket is fixedly connected to the outer surface of the exhaust pipe.

[0014] As a further scheme of the present utility model: One end of the exhaust pipe away from the cooling box is fixedly communicated with a retention pipe. One end of the retention pipe away from the exhaust pipe is fixedly communicated with an exhaust elbow.

[0015] As a further scheme of the present utility model: A distillation water pipe is fixedly communicated with the outer surface of the exhaust pipe. A rotary valve is fixedly communicated with the outer surface of the distillation water pipe.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] The utility model is provided with a cooling box, a partition board, a flow retarder plate, a water tank, a water pump, a water suction pipe, a water spray pipe, a spray head, a filter, a sewage pipe, a water filling pipe and an exhaust pipe which cooperate with each other. The internal flue of the cooling box is partitioned into an S shape by two partition boards, so that the flow velocity of the flue gas becomes slower. The flow retarder plate is used to further keep the flue gas staying in the cooling box for a longer time. At this time, the water pump pumps the cold water in the water tank into the water spray pipe through the water suction pipe and sprays it out through the spray head. The sprayed water mist helps to cool and remove dust from the flue gas. The power provided by the pump in the filter is used to pump water into the filter through the sewage pipe. After being filtered by the filter, the water flows back into the water tank through the water filling pipe, achieving the effect of cooling and removing dust by using water circulation, and having the advantage of saving water energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a cooling and dust-removing treatment device for a blast furnace exhaust port;

[0019] Figure 2 is a rear view three-dimensional structural diagram of a cooling box in a cooling and dust-removing treatment device for a blast furnace exhaust port;

[0020] Figure 3 is a three-dimensional structural diagram of a flow retarder plate in a cooling and dust-removing treatment device for a blast furnace exhaust port;

[0021] Figure 4 is a three-dimensional structural diagram of a retention pipe in a cooling and dust-removing treatment device for a blast furnace exhaust port.

[0022] In the figure: 1, blower; 2, intake pipe; 3, cooling mechanism; 301, cooling box; 302, partition board; 303, flow retarder plate; 304, water tank; 305, water pump; 306, water suction pipe; 307, water spray pipe; 308, spray head; 309, filter; 310, sewage pipe; 311, water filling pipe; 312, exhaust pipe; 4, drain pipe; 5, sewage valve; 6, hanger; 7, support frame; 8, fixing frame; 9, bracket; 10, retention pipe; 11, exhaust elbow; 12, distillation water pipe; 13, rotary valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Please refer to Figures 1-4 , a cooling and dust-removing treatment device for a blast furnace exhaust port, including a blower 1. The output end of the power of the blower 1 is fixedly communicated with an intake pipe 2. The end of the intake pipe 2 far away from the blower 1 is fixedly communicated with a cooling mechanism 3. The cooling mechanism 3 includes a cooling box 301. A drain pipe 4 is fixedly communicated with the front surface of the cooling box 301. A sewage valve 5 is fixedly communicated with the outer surface of the drain pipe 4. The drain pipe 4 is provided for discharging condensed water. When the relatively hot flue gas enters the relatively cold cooling box 301, a large amount of condensed water will be generated. The sewage valve 5 can control the switch of the drain pipe 4.

[0024] One end of the air inlet pipe 2 far from the blower 1 is fixedly communicated with the right side surface of the cooling box 301. Two partition plates 302 are fixedly connected to the inner wall of the cooling box 301. A number of flow retarder plates 303 are fixedly connected to the inner wall of the cooling box 301. A support frame 7 is arranged outside the cooling box 301. A fixing frame 8 is fixedly connected to the inner wall of the support frame 7. The outer surface of the exhaust pipe 312 is fixedly connected to the inner wall of the fixing frame 8. By providing the support frame 7, it is used to support and fix the exhaust pipe 312. The fixing frame 8 further strengthens the exhaust pipe 312 to ensure the stability of the exhaust pipe 312.

[0025] The right side surface of each flow retarder plate 303 is fixedly connected to the left side surface of one of the partition plates 302. A water tank 304 is fixedly connected to the inner wall of the cooling box 301. A water pump 305 is arranged inside the water tank 304. The output end of the power of the water pump 305 is fixedly communicated with a water suction pipe 306. A bracket 9 is fixedly connected to the outer surface of the support frame 7. The upper surface of the bracket 9 is fixedly connected to the outer surface of the exhaust pipe 312. By providing the bracket 9, the exhaust pipe 312 can be lifted from the bottom to ensure the stability of the exhaust pipe 312. In addition, the size of the bracket 9 is not fixed and can be changed according to actual installation needs.

[0026] One end of the water suction pipe 306 far from the water pump 305 sequentially penetrates through the water tank 304 and the cooling box 301 and is fixedly communicated with a water spray pipe 307. A number of spray heads 308 are fixedly communicated with the outer surface of the water spray pipe 307. A filter 309 is arranged outside the cooling box 301. A sewage pipe 310 is fixedly communicated with the front surface of the filter 309. Three hanging brackets 6 are fixedly connected to the outer surface of the water spray pipe 307. The upper surface of each hanging bracket 6 is fixedly connected to the inner top wall of the cooling box 301. By providing the hanging brackets 6, the water spray pipe 307 can be hoisted to make the water spray pipe 307 more stable and not easy to shake.

[0027] One end of the sewage pipe 310 far from the filter 309 penetrates through the cooling box 301 and extends to the inside of the cooling box 301. A water adding pipe 3 l 1 is fixedly communicated with the front surface of the filter 309. One end of the water adding pipe 311 far from the filter 309 sequentially penetrates through the cooling box 301 and the water tank 304 and extends to the inside of the water tank 304. The left side surface of the cooling box 301 is fixedly communicated with an exhaust pipe 312. One end of the exhaust pipe 312 far from the cooling box 301 is fixedly communicated with a retention pipe 10. One end of the retention pipe 10 far from the exhaust pipe 312 is fixedly communicated with an exhaust elbow 11. By providing the retention pipe 10, the flue gas can stay for a while longer to mix the flue gas with oxygen to form a certain amount of water vapor. The water vapor can take away some heat in the flue gas. The exhaust elbow 11 can prevent rainwater from entering.

[0028] A distillation water pipe 12 is fixedly connected to the outer surface of the exhaust pipe 312, and a rotary valve 13 is fixedly connected to the outer surface of the distillation water pipe 12. The distillation water pipe 12 is provided for secondarily discharging distilled water during the cooling process, and the rotary valve 13 is used to control the switch of the distillation water pipe 12, which is opened and discharged regularly by the staff to relieve the pressure of the exhaust pipe 312.

[0029] The working principle of the present utility model is as follows: When in use, first, the blower 1 is electrically connected through a wire, and then the power provided by the blower 1 is used to drive the flue gas to enter the inside of the cooling box 301 through the intake pipe 2. At this time, the flue gas is first limited by the two partition plates 302 and slowly flows in an S shape. During this period, the temperature of the flue gas is slowly cooled, and then the flue gas passes through below the partition plates 302 and floats upward from bottom to top;

[0030] At this time, the power provided by the water pump 305 is used to pump the cold water in the water tank 304 into the inside of the spray pipe 307 through the water suction pipe 306, and then sprayed out by the spray head 308. At this time, the sprayed water mist is used to cool and remove dust from the flue gas. When the flue gas passes through the flow retardation plate 303, the moisture on the surface of the flow retardation plate 303 can be used to adsorb the particles in the flue gas. Then, the power provided by the pump in the filter 309 is used to pump water from the inside of the cooling box 301 into the filter 309 through the sewage pipe 310, and then after being filtered by the filter 309, it flows back into the water tank 304 through the water adding pipe 311, realizing the effect of water circulation for cooling and dust removal. Finally, the flue gas enters the retention pipe 10 through the exhaust pipe 312, stays briefly inside the retention pipe 10, mixes with oxygen to generate a certain amount of water vapor, and further reduces the temperature of the flue gas. Finally, it is discharged into the atmosphere through the exhaust elbow 11, achieving the purpose of cooling and dust removal for the exhaust port of this blast furnace, enabling the flue gas to flow slowly and fully for cooling and dust removal, and solving the problem of poor cooling and dust removal effects due to too fast flue gas flow rate.

[0031] The above-mentioned is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes, should be covered within the protection scope of the present utility model.

Claims

1. A cooling and dust removal treatment device for the exhaust port of a blast furnace, comprising a blower (1), characterized in that: The output end of the power of the blower (1) is fixedly communicated with an air inlet pipe (2), and one end of the air inlet pipe (2) far away from the blower (1) is fixedly communicated with a cooling mechanism (3). The cooling mechanism (3) includes a cooling box (301). One end of the air inlet pipe (2) far away from the blower (1) is fixedly communicated with the right side surface of the cooling box (301). Two partition plates (302) are fixedly connected to the inner wall of the cooling box (301). A plurality of flow retarder plates (303) are fixedly connected to the inner wall of the cooling box (301). The right side surface of each flow retarder plate (303) is fixedly connected to the left side surface of one of the partition plates (302). A water tank (304) is fixedly connected to the inner wall of the cooling box (301). A water pump (305) is arranged inside the water tank (304). The output end of the power of the water pump (305) is fixedly communicated with a water suction pipe (306). One end of the water suction pipe (306) far away from the water pump (305) sequentially penetrates through the water tank (304) and the cooling box (301) and is fixedly communicated with a water spray pipe (307). A plurality of spray heads (308) are fixedly communicated with the outer surface of the water spray pipe (307). A filter (309) is arranged outside the cooling box (301). A sewage pipe (310) is fixedly communicated with the front surface of the filter (309). One end of the sewage pipe (310) far away from the filter (309) penetrates through the cooling box (301) and extends into the cooling box (301). A water adding pipe (311) is fixedly communicated with the front surface of the filter (309). One end of the water adding pipe (311) far away from the filter (309) sequentially penetrates through the cooling box (301) and the water tank (304) and extends into the water tank (304). An exhaust pipe (312) is fixedly communicated with the left side surface of the cooling box (301).

2. The cooling and dust removal treatment equipment for the blast furnace exhaust port according to claim 1, characterized in that: A drain pipe (4) is fixedly communicated with the front surface of the cooling box (301). A sewage valve (5) is fixedly communicated with the outer surface of the drain pipe (4).

3. The temperature reduction and dust removal treatment equipment for the blast furnace exhaust port according to claim 1, characterized in that: Three hanging brackets (6) are fixedly connected to the outer surface of the water spray pipe (307). The upper surface of each hanging bracket (6) is fixedly connected to the inner top wall of the cooling box (301).

4. The cooling and dust removal treatment equipment for the blast furnace exhaust port according to claim 1, characterized in that: A support frame (7) is arranged outside the cooling box (301). A fixing frame (8) is fixedly connected to the inner wall of the support frame (7). The inner wall of the fixing frame (8) is fixedly connected to the outer surface of the exhaust pipe (312).

5. The blast furnace exhaust port temperature reduction and dust removal treatment equipment according to claim 4, characterized in that: A bracket (9) is fixedly connected to the outer surface of the support frame (7). The upper surface of the bracket (9) is fixedly connected to the outer surface of the exhaust pipe (312).

6. The temperature reduction and dust removal treatment equipment for the blast furnace exhaust port according to claim 1, characterized in that: One end of the exhaust pipe (312) far away from the cooling box (301) is fixedly communicated with a retention pipe (10). One end of the retention pipe (10) far away from the exhaust pipe (312) is fixedly communicated with an exhaust elbow (11).

7. A blast furnace exhaust port cooling and dust reduction treatment device according to claim 1, characterized in that: A distilled water pipe (12) is fixedly communicated with the outer surface of the exhaust pipe (312). A rotary valve (13) is fixedly communicated with the outer surface of the distilled water pipe (12).

Images