Blast furnace injection coal storage device

Abstract

The utility model relates to a blast furnace injection coal storage device, which belongs to the field of metal smelting equipment, and is characterized in that the bottom of a mixing bin of the blast furnace injection coal storage device is connected with three blanking bins, the three blanking bins can simultaneously discharge materials, and the left side and the right side of the mixing bin are connected with a first water inlet pipe and a second water inlet pipe; the pipe openings, located in the mixing bin, of the first water inlet pipe and the second water inlet pipe are connected with a water inlet pipe inner pipe and a water inlet pipe spraying head, spraying can be carried out when feeding is carried out through a feeding opening, and dust raising is reduced, and a first spraying pipe and a second spraying pipe are arranged on the left side and the right side of a recycling trolley; a spraying pipe inner pipe and a spraying pipe spraying head are connected to pipe openings, located in the recycling trolley, of the first spraying pipe and the second spraying pipe, spraying can be conducted during discharging, raised dust generated during discharging is reduced, spraying pipe connecting openings are formed in the first spraying pipe and the second spraying pipe, and the recycling trolley can be transferred to a coal using place after the recycling trolley is detached from the spraying pipe connecting openings.

Description

Technical Field

[0001] The utility model belongs to the field of metal smelting equipment, and specifically relates to a blast furnace coal injection coal storage device. Background Art

[0002] In the prior art, a coal storage yard refers to a place where coal is stored, usually an auxiliary facility of a coal-fired power plant or steel plant. With the continuous improvement of my country's coal production capacity, the increasingly stringent national environmental protection policies and the increasing awareness of environmental protection, the open-air coal storage method commonly used by coal production enterprises no longer meets the requirements. A fully enclosed coal storage yard that meets the actual needs of the enterprise must be adopted to ensure good economic, environmental and social benefits of the enterprise.

[0003] The main purpose of pulverized coal injection in blast furnaces is to serve as a heating agent to replace expensive, environmentally polluting, and scarce coke. Coal storage bins are set up to store pulverized coal for blast furnace injection, and the coal does not need to be directly piled in the coal yard. However, a large amount of dust will be generated when coal is put in and out of the coal storage bins, affecting the environment.

[0004] The utility model patent with publication number CN211767748U discloses a conical coal storage bin structure, in which spray pipes are arranged at the top and the middle of the inner wall of the conical coal storage bin. The coal slag is accumulated and condensed through timed spraying, and the bin wall is converted into condensed coal slag to form a coal slag protective layer, which can protect the steel plate from direct erosion by the coal slag. This arrangement can reduce dust by spraying when coal is fed in, but the sprayed material may agglomerate, which makes it difficult to discharge the material. In addition, if the early spraying is not thorough during discharging, the falling material may also generate dust, affecting the operating environment. Utility Model Content

[0005] In order to overcome the problems existing in the background technology, the utility model discloses a coal storage device for blast furnace pulverized coal. The bottom of the mixing bin of the coal storage device for blast furnace pulverized coal is connected to a feeding bin, and three feeding bins are respectively provided. The three feeding bins can discharge materials at the same time. A first water inlet pipe and a second water inlet pipe are connected to the left and right sides of the mixing bin. The first water inlet pipe and the second water inlet pipe are connected to a water inlet pipe inner pipe and a water inlet pipe spray head at the pipe openings inside the mixing bin, which can spray when feeding at the feeding port to reduce the generation of dust. A first spray pipe and a second spray pipe are provided on the left and right sides of a recovery trolley. The first spray pipe and the second spray pipe are connected to a spray pipe inner pipe and a spray pipe nozzle at the pipe openings inside the recovery trolley to spray when discharging materials to reduce the dust generated during discharging. Spray pipe connecting ports are provided on the first spray pipe and the second spray pipe, and the recovery trolley can be transported to a coal usage site after being disassembled from the spray pipe connecting ports.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] The blast furnace coal injection storage device comprises a mixing bin, a feeding bin, a bracket, a recovery trolley, a first water inlet pipe, a first water tank, a second water inlet pipe, a second water tank, a first spray pipe, a second spray pipe, and a spray pipe connection port;

[0008] The mixing bin is connected to the lower material bin, the bracket is connected to the lower material bin, the recovery trolley is arranged below the lower material bin, the first water inlet pipe is connected to the mixing bin, the first water tank is connected to the first water inlet pipe, the second water inlet pipe is connected to the mixing bin, the second water tank is connected to the second water inlet pipe, the first spray pipe is connected to the recovery trolley, the second spray pipe is connected to the recovery trolley, and the first spray pipe is provided with a spray pipe connection port.

[0009] A feed port is arranged on the top of the mixing bin, and a stirrer is arranged inside the mixing bin.

[0010] The bottom surface of the bracket is provided with a supporting foot, and the bottom surface of the supporting foot is connected with a universal wheel joint.

[0011] A weighing mechanism is arranged at the bottom of the recycling trolley, and a bottom wheel is arranged at the bottom of the weighing mechanism.

[0012] A feeding machine is arranged inside the lower material bin.

[0013] A water inlet pipe is arranged on the top of the first water tank, a liquid level gauge is arranged inside the first water tank, and a water outlet pipe is arranged at the bottom of the first water tank. The first water tank has the same structure as the second water tank.

[0014] The spray pipe connection port includes: a left tube body, a right tube body, a left connection port, a right connection port, and a connection ring; the left tube body and the right tube body are connected to the first spray pipe, the left connection port is connected to the left tube body, the right connection port is connected to the right tube body, the connection ring is connected to the left connection port and the right connection port, and the second spray pipe is provided with a spray pipe connection port.

[0015] The first water inlet pipe is connected to an inner water inlet pipe at the pipe opening inside the mixing bin, a water inlet pipe spray head is arranged on the inner water inlet pipe, and the second water inlet pipe has the same structure as the first water inlet pipe.

[0016] The first spray pipe is connected to a spray pipe inner pipe at a pipe opening inside the recovery trolley, a spray pipe spray head is arranged on the spray pipe inner pipe, and the second spray pipe has the same structure as the first spray pipe.

[0017] The beneficial effects of the utility model are as follows: a lower feeding bin is connected to the bottom of the mixing bin of the blast furnace coal injection storage device, and three lower feeding bins are respectively provided, so that materials can be discharged from the three lower feeding bins at the same time; a first water inlet pipe and a second water inlet pipe are connected to the left and right sides of the mixing bin; the first water inlet pipe and the second water inlet pipe are connected to water inlet pipe inner pipes and water inlet pipe spray heads at the pipe openings inside the mixing bin, so that spraying can be performed when feeding at the feeding port to reduce the generation of dust; a first spray pipe and a second spray pipe are provided on the left and right sides of the recovery trolley; the first spray pipe and the second spray pipe are connected to spray pipe inner pipes and spray pipe nozzles at the pipe openings inside the recovery trolley to spray when discharging materials to reduce the generation of dust during discharging; spray pipe connecting ports are provided on the first spray pipe and the second spray pipe, and the recovery trolley can be transported to a coal usage site after being disassembled from the spray pipe connecting ports. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a mixing bin;

[0020] Figure 3 It is a structural schematic diagram of the lower silo;

[0021] Figure 4 It is a schematic diagram of the structure of the recycling trolley;

[0022] Figure 5 It is a structural schematic diagram of the spray pipe connection port.

[0023] In the figure, 1-mixing bin, 2-discharging bin, 3-feeding port, 4-discharging port, 5-mixer, 6-feeding machine, 7-bracket, 8-leg, 9-universal wheel, 10-recovery trolley, 11-weighing mechanism, 12-bottom wheel, 13-first water inlet pipe, 14-first water tank, 15-water inlet pipe, 16-liquid level gauge, 17-water outlet pipe, 18-first spray pipe, 19-spray pipe connecting port, 20-second water inlet pipe, 21-second spray pipe, 22-second water tank, 23-inner pipe of water inlet pipe, 24-water inlet pipe nozzle, 25-inner pipe of spray pipe, 26-spray pipe nozzle, 27-left tube body, 28-right tube body, 29-left connecting port, 30-right connecting port, 31-connecting ring. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objectives, technical solutions and beneficial effects clearer, the present invention is described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-5As shown, the blast furnace pulverized coal storage device comprises a mixing bin 1, a lower bin 2, a bracket 7, a recovery trolley 10, a first water inlet pipe 13, a first water tank 14, a second water inlet pipe 20, a second water tank 22, a first spray pipe 18, a second spray pipe 21, and a spray pipe connection port 19; the mixing bin 1 is connected to the lower bin 2, the bracket 7 is connected to the lower bin 2, the bottom surface of the bracket 7 is provided with a support foot 8, the bottom surface of the support foot 8 is connected with a universal wheel 9, the recovery trolley 10 is arranged below the lower bin 2, and a weighing machine is arranged at the bottom of the recovery trolley 10 The weighing mechanism 11 is provided with a bottom wheel 12 at the bottom, a feeding machine 6 is provided inside the lower bin 2, a first water inlet pipe 13 is connected to the mixing bin 1, a first water tank 14 is connected to the first water inlet pipe 13, a second water inlet pipe 20 is connected to the mixing bin 1, a second water tank 22 is connected to the second water inlet pipe 20, a water inlet pipe 15 is provided on the top of the first water tank 14, a liquid level gauge 16 is provided inside the first water tank 14, a water outlet pipe 17 is provided at the bottom of the first water tank 14, the first water tank 14 and the second water tank 22 have the same structure, and a first spray pipe 18 is connected to the recycling small The second spray pipe 21 is connected to the recovery trolley 10, and the first spray pipe 18 is provided with a spray pipe connection port 19, and the spray pipe connection port 19 includes: a left tube body 27, a right tube body 28, a left connection port 29, a right connection port 30, and a connection ring 31; the left tube body 27 and the right tube body 28 are connected to the first spray pipe 18, the left connection port 29 is connected to the left tube body 27, the right connection port 30 is connected to the right tube body 28, and the connection ring 31 is connected to the left connection port 29 and the right connection port 30, and the second spray pipe 21 is provided with a spray pipe A connecting port 19 is provided, a feed port 3 is provided on the top of the mixing bin 1, a mixer 5 is provided inside the mixing bin 1, the first water inlet pipe 13 is connected to a water inlet pipe inner tube 23 at the pipe mouth inside the mixing bin 1, a water inlet pipe 15 spray head is provided on the water inlet pipe inner tube 23, the second water inlet pipe 20 has the same structure as the first water inlet pipe 13, the first spray pipe 18 is connected to a spray pipe inner tube 25 at the pipe mouth inside the recovery trolley 10, the spray pipe spray head is provided on the spray pipe inner tube 25, and the second spray pipe 21 has the same structure as the first spray pipe 18.

[0026] The bottom of the mixing bin 1 of the blast furnace pulverized coal storage device is connected to a lower material bin 2, and three lower material bins 2 are respectively provided, and the three lower material bins 2 can discharge materials at the same time, and the first water inlet pipe 13 and the second water inlet pipe 20 are connected to the left and right sides of the mixing bin 1, and the first water inlet pipe 13 and the second water inlet pipe 20 are located at the pipe openings inside the mixing bin 1. The inner pipe 23 of the water inlet pipe and the spray head of the water inlet pipe 15 are connected, and spraying can be performed when feeding at the feed port 3. The spray head of the water inlet pipe 15 of the first water inlet pipe 13 is set downward, and the water inlet pipe spray head 24 of the second water inlet pipe 20 is set upward. The two water inlet pipes 20 spray at the same time, which can reduce the generation of dust during feeding. The first spray pipe 18 and the second spray pipe 21 are arranged on the left and right sides of the recovery trolley 10. The first spray pipe 18 and the second spray pipe 21 are located at the pipe mouth inside the recovery trolley 10 and are connected with the spray pipe inner pipe 25 and the spray pipe nozzle 26. The spray pipe nozzle 26 of the first spray pipe 18 is arranged downward, and the nozzle of the second spray pipe 21 is arranged upward. When discharging, the first spray pipe 18 and the second spray pipe 21 spray at the same time to reduce the dust generated during discharging. The first spray pipe 18 and the second spray pipe 21 A spray pipe connection port 19 is provided on the top. After disassembling from the spray pipe connection port 19, the recovery trolley 10 can be transported to the coal-using place. The installation of the spray pipe connection port 19 is that the left pipe body 27 and the right pipe body 28 are arranged oppositely. The outer connecting ring 31 is provided with an internal thread inside, which matches the thread on the outer surface of the left connecting port 29 and the right connecting port 30. After the left pipe body 27 and the right pipe body 28 are positioned correspondingly, the connecting ring is tightened, and it is also disassembled from the connecting ring 31 during disassembly. A weighing mechanism is provided at the bottom of the recovery trolley 10 to realize quantitative discharging. The first water tank 14 and the second water tank 22 are connected through the first inlet. The water pipe 13 and the second water inlet pipe 20 are connected to the mixing bin 1 to introduce spray water. The first water tank 14 and the second water tank 22 are connected to the recovery trolley 10 through the first spray pipe 18 and the second spray pipe 21 to introduce spray water. The coal storage bin can be effectively dusted during feeding and discharging. A mixer 5 is arranged inside the mixing bin 1. The mixer 5 can mix and stir during the unloading process, and continuously stir and lift the materials to facilitate unloading. A breaker 6 is arranged in the unloading bin 2 to break up the materials during unloading to avoid agglomeration. The blast furnace pulverized coal storage device can replace the coal yard for coal storage.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A blast furnace coal injection coal storage device, characterized in that: The blast furnace coal injection storage device comprises a mixing bin, a feeding bin, a bracket, a recovery trolley, a first water inlet pipe, a first water tank, a second water inlet pipe, a second water tank, a first spray pipe, a second spray pipe, and a spray pipe connection port; The mixing bin is connected to the lower material bin, the bracket is connected to the lower material bin, the recovery trolley is arranged below the lower material bin, the first water inlet pipe is connected to the mixing bin, the first water tank is connected to the first water inlet pipe, the second water inlet pipe is connected to the mixing bin, the second water tank is connected to the second water inlet pipe, the first spray pipe is connected to the recovery trolley, the second spray pipe is connected to the recovery trolley, and the first spray pipe is provided with a spray pipe connection port.

2. A blast furnace coal injection storage device according to claim 1, characterized in that: include: A feed inlet and a stirrer; the feed inlet is arranged at the top of the mixing bin, and the stirrer is arranged inside the mixing bin.

3. A coal storage device for blast furnace coal injection according to claim 1, characterized in that: include: Support feet, universal wheels; The support foot is connected to the bottom surface of the bracket, and the universal wheel is connected to the bottom surface of the support foot.

4. A coal storage device for blast furnace coal injection according to claim 1, characterized in that: include: Weighing mechanism and bottom wheel; the weighing mechanism is arranged at the bottom of the recycling trolley, and the bottom wheel is arranged at the bottom of the weighing mechanism.

5. A coal storage device for blast furnace coal injection according to claim 1, characterized in that: include: The material beater is arranged inside the lower material bin.

6. A coal storage device for blast furnace coal injection according to claim 1, characterized in that: include: A water inlet pipe, a liquid level gauge, and a water outlet pipe; the water inlet pipe is arranged at the top of the first water tank, the liquid level gauge is arranged inside the first water tank, and the water outlet pipe is arranged at the bottom of the first water tank. The first water tank and the second water tank have the same structure.

7. A coal storage device for blast furnace coal injection according to claim 1, characterized in that: The spray pipe connection port includes: a left tube body, a right tube body, a left connection port, a right connection port, and a connection ring; the left tube body and the right tube body are connected to the first spray pipe, the left connection port is connected to the left tube body, the right connection port is connected to the right tube body, the connection ring is connected to the left connection port and the right connection port, and the second spray pipe is provided with a spray pipe connection port.

8. A coal storage device for blast furnace coal injection according to claim 1, characterized in that: It includes an inner tube of a water inlet pipe and a water inlet pipe spray head; the inner tube of the water inlet pipe is connected to the first water inlet pipe, the water inlet pipe spray head is arranged on the inner tube of the water inlet pipe, and the second water inlet pipe has the same structure as the first water inlet pipe.

9. A coal storage device for blast furnace coal injection according to claim 1, characterized in that: include: Spray pipe inner pipe, spray pipe spray head; the spray pipe inner pipe is connected to the first spray pipe, the spray pipe spray head is arranged on the spray pipe inner pipe, and the second spray pipe has the same structure as the first spray pipe.

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