Blast furnace hot blast stove calcium-based dry desulfurization spray humidifying equipment

Abstract

The utility model relates to the technical field of spray humidifying equipment, and discloses blast furnace hot blast stove calcium-based dry desulfurization spray humidifying equipment which comprises a desulfurization equipment body, an exhaust port is formed in the outer side of the desulfurization equipment body, and a plurality of water pumps are arranged at the end, away from the exhaust port, of the desulfurization equipment body. A plurality of water pumps are arranged on the outer side of the desulfurization equipment main body, each water pump is communicated with an external water pipe, the water conveying end of each water pump is communicated with a water conveying pipe, and a fixed plate is fixed at the upper part in the desulfurization equipment main body. The water flow is discharged into the desulfurization equipment main body through the atomization nozzle, so that a worker can conveniently control the humidity in the desulfurization equipment main body, the reaction activity of the calcium-based powder is improved, and the problems of relatively low desulfurization efficiency, low limestone utilization rate and the like in the traditional calcium-based dry desulfurization technology are solved.

Description

Technical Field

[0001] The present utility model application relates to the technical field of spray humidification equipment, and specifically to a calcium-based dry desulfurization spray humidification equipment for a blast furnace hot blast stove. Background Art

[0002] As the name implies, a hot blast stove is a thermal equipment integrating the processes of combustion and heat transfer that provides hot air flow for process needs. Generally, there are two major types, namely the regenerative hot blast stove with intermittent operation and the continuous heat exchange hot blast stove. In today's situation where high-temperature ceramic heat exchange devices are not yet mature, the regenerative hot blast stove with intermittent operation is still the mainstream product of hot blast stoves. In order to continuously provide hot air, at least two hot blast stoves must operate alternately. A large amount of sulfur-containing flue gas is generated during the steel production process of a blast furnace hot blast stove, and calcium-based dry desulfurization technology needs to be used for desulfurization treatment.

[0003] Although traditional calcium-based dry desulfurization technology has advantages such as low investment and small floor area, there are problems such as relatively low desulfurization efficiency and low utilization rate of limestone. In order to improve the reaction activity of calcium-based powder, it is necessary to increase the contact area and reaction time between the flue gas and the desulfurizer, and the increase in humidity in the flue duct is an effective means to promote this process. Summary of the Invention

[0004] In order to solve the problems of relatively low desulfurization efficiency and low utilization rate of limestone existing in traditional calcium-based dry desulfurization technology, the present utility model provides a calcium-based dry desulfurization spray humidification equipment for a blast furnace hot blast stove to solve the above problems.

[0005] To achieve the above object, the present utility model provides the following technical solutions:

[0006] A calcium-based dry desulfurization spray humidification equipment for a blast furnace hot blast stove, including a desulfurization equipment main body. An exhaust port is provided on the outer side of the desulfurization equipment main body. A plurality of water pumps are arranged at one end of the desulfurization equipment main body away from the exhaust port. Each water pump is communicated with an external water pipe. The water delivery end of each water pump is communicated with a water delivery pipe. A fixing plate is fixed above the interior of the desulfurization equipment main body. An outer connection ring and a connection pipe are fixed at the top of the fixing plate. Each water delivery pipe is communicated with the outer connection ring. A plurality of inner connection rings are communicated between the outer connection ring and the connection pipe. Two atomizing nozzles are communicated below each inner connection ring.

[0007] Further, a limiting plate is rotatably connected to the bottom end of the fixing plate, and a servo motor is fixed at the top of the fixing plate. The output end of the servo motor is fixed to the limiting plate.

[0008] Further, a water storage ring is fixed in the middle inside the main body of the desulfurization equipment. A water guide pipe is fixed on one side of the main body of the desulfurization equipment close to the water delivery pipe. One end of the water guide pipe communicates with the inside of the water storage ring, the other end of the water guide pipe communicates with a water delivery pipe, and a control valve is fixed on the water guide pipe.

[0009] Further, a control valve is fixed on the water guide pipe, and the control valve is electrically connected to a remote terminal.

[0010] Further, the fixing plate and the limiting plate have the same shape. The limiting plate is located above the exhaust port, and the servo motor is located at the center of the fixing plate.

[0011] Further, the shape of the water storage ring is an annular "L" shape, and inclined surfaces are provided on the outer sides of the water storage ring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by arranging a water pump outside the main body of the desulfurization equipment, and enabling the water pump to input water into the outer connection ring, inner connection ring and connecting pipe through the water delivery pipe, and then discharging the water flow into the main body of the desulfurization equipment through the atomizing nozzles, it is convenient for the staff to control the humidity inside the main body of the desulfurization equipment, thereby improving the reaction activity of the calcium-based powder, and solving the problems of relatively low desulfurization efficiency and low utilization rate of limestone in the traditional calcium-based dry desulfurization technology.

[0014] 2. In the present utility model, by fixing a fixing plate above the main body of the desulfurization equipment, arranging a limiting plate below the fixing plate, and controlling the rotation of the limiting plate through a servo motor, it is convenient for the staff to control the servo motor to block the atomizing nozzles with the limiting plate, thereby avoiding the problem that when the atomizing nozzles are not in use, the soot inside the main body of the desulfurization equipment easily blocks the water outlet of the atomizing nozzles, resulting in a decrease in the atomizing effect of the atomizing nozzles and further affecting the desulfurization efficiency of the main body of the desulfurization equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic three-dimensional structure diagram according to an embodiment of the present application;

[0017] Figure 2 is Figure 1Schematic three-dimensional structure diagram after opening in the illustrated embodiment;

[0018] Figure 3 is Figure 1 Schematic three-dimensional structure diagram after opening in the illustrated embodiment;

[0019] Figure 4 is Figure 2 Schematic three-dimensional structure diagram of local structure A in the illustrated embodiment;

[0020] Figure 5 is Figure 3 Schematic top view sectional diagram of local structure B in the illustrated embodiment.

[0021] Meanings of the reference numerals in the figure: 1, main body of desulfurization equipment; 2, exhaust port; 3, water pump; 4, water delivery pipe; 5, outer connection ring; 6, inner connection ring; 7, connecting pipe; 8, atomizing nozzle; 9, servo motor; 10, fixing plate; 11, limiting plate; 12, water storage ring; 13, water guide pipe; 14, control valve. Specific embodiments

[0022] To make the application purpose, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0023] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a calcium-based dry desulfurization spray humidification device for a blast furnace hot blast stove, including a main body 1 of desulfurization equipment, an exhaust port 2 is provided on the outer side of the main body 1 of desulfurization equipment, a plurality of water pumps 3 are arranged at one end of the main body 1 of desulfurization equipment away from the exhaust port 2, each water pump 3 is communicated with an external water pipe, the water delivery end of each water pump 3 is communicated with a water delivery pipe 4, a fixing plate 10 is fixed above the inside of the main body 1 of desulfurization equipment, an outer connection ring 5 and a connecting pipe 7 are fixed at the top of the fixing plate 10, each water delivery pipe 4 is communicated with the outer connection ring 5, a plurality of inner connection rings 6 are communicated between the outer connection ring 5 and the connecting pipe 7, and two atomizing nozzles 8 are communicated below each inner connection ring 6, so as to control the humidity inside the main body 1 of desulfurization equipment by the atomizing nozzles 8.

[0024] Specifically, a water storage ring 12 is fixed in the middle inside the desulfurization equipment main body 1. On one side of the desulfurization equipment main body 1 close to the water delivery pipe 4, a water guide pipe 13 is fixed. One end of the water guide pipe 13 communicates with the inside of the water storage ring 12, the other end of the water guide pipe 13 communicates with a water delivery pipe 4, a control valve 14 is fixed on the water guide pipe 13, the control valve 14 is electrically connected to a remote terminal, the shape of the water storage ring 12 is a ring-shaped "L" type, and inclined surfaces are provided on the outer sides of the water storage ring 12, so that the water storage ring 12 cleans the inner wall of the desulfurization equipment main body 1.

[0025] As an optimized solution, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the bottom end of the fixed plate 10 is rotatably connected to a limit plate 11, the top end of the fixed plate 10 is fixed with a servo motor 9, and the output end of the servo motor 9 is fixedly connected to the limit plate 11, so that the servo motor 9 controls the limit plate 11 to close, avoiding the atomizing nozzle 8 from being blocked by dust.

[0026] Specifically, the fixed plate 10 and the limit plate 11 have the same shape, the limit plate 11 is located above the exhaust port 2, and the servo motor 9 is located at the center of the fixed plate 10, avoiding the limit plate 11 from blocking the exhaust port 2 and causing the gas to be unable to be discharged.

[0027] Working principle: When the sulfur-containing gas enters the inside of the desulfurization equipment main body 1, by starting the servo motor 9, the servo motor 9 drives the limit plate 11 to rotate, so that the limit of the limit plate 11 on the fixed plate 10 is released. At the same time, the water pump 3 is started, so that the water pump 3 inputs the water flow through the water delivery pipe 4 into the outer connection ring 5. At the same time, the water flow flows through the outer connection ring 5 into the inner connection ring 6 and the connection pipe 7, and is atomized and sprayed out through the atomizing nozzle 8, so that the humidity inside the desulfurization equipment main body 1 is conveniently controlled, thereby improving the reaction activity of the calcium-based powder. The desulfurized gas is discharged through the exhaust port 2. When the inner wall of the desulfurization equipment main body 1 needs to be cleaned, the control valve 14 is opened, so that the water flow inside the water delivery pipe 4 flows into the water storage ring 12 through the water guide pipe 13. When the water flow overflows the top end of the water storage ring 12, the water flow flows along the outer side of the water storage ring 12 to the inner wall of the desulfurization equipment main body 1, so that the water flow of the water storage ring 12 flushes the inner wall of the desulfurization equipment main body 1.

[0028] For those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present application. Any reference signs in the claims should not be construed as limiting the claims involved.

[0029] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A calcium-based dry desulfurization spray humidification equipment for a blast furnace hot blast furnace, comprising a desulfurization equipment body (1), characterized in that: An exhaust port (2) is provided on the outside of the desulfurization equipment body (1). A plurality of water pumps (3) are arranged at one end of the desulfurization equipment body (1) away from the exhaust port (2). Each of the water pumps (3) is connected to an external water pipe. The water delivery end of each water pump (3) is connected to a water delivery pipe (4). A fixing plate (10) is fixed on the top of the desulfurization equipment body (1). An external connecting ring (5) and a connecting pipe (7) are fixed on the top of the fixing plate (10). Each of the water delivery pipes (4) is connected to the external connecting ring (5). A plurality of internal connecting rings (6) are connected between the external connecting ring (5) and the connecting pipe (7). Two atomizing nozzles (8) are connected below each of the internal connecting rings (6).

2. The calcium-based dry desulfurization spray humidification equipment for hot blast furnaces according to claim 1 is characterized in that: The bottom end of the fixed plate (10) is rotatably connected to the limit plate (11), a servo motor (9) is fixed to the top end of the fixed plate (10), and the output end of the servo motor (9) is fixedly connected to the limit plate (11).

3. The calcium-based dry desulfurization spray humidification equipment for hot blast furnaces according to claim 1 is characterized in that: A water storage ring (12) is fixed in the middle of the desulfurization equipment body (1), and a water guide pipe (13) is fixed on the outside of the desulfurization equipment body (1) on one side close to the water supply pipe (4). One end of the water guide pipe (13) is connected to the inside of the water storage ring (12), and the other end of the water guide pipe (13) is connected to a water supply pipe (4).

4. The calcium-based dry desulfurization spray humidification equipment for hot blast furnaces according to claim 3 is characterized in that: A control valve (14) is fixed on the water conduit (13), and the control valve (14) is electrically connected to the remote terminal.

5. The calcium-based dry desulfurization spray humidification equipment for hot blast furnaces according to claim 2 is characterized in that: The fixing plate (10) and the limiting plate (11) have the same shape; the limiting plate (11) is located above the exhaust port (2); and the servo motor (9) is located at the center of the fixing plate (10).

6. The calcium-based dry desulfurization spray humidification equipment for hot blast furnaces according to claim 3, characterized in that: The shape of the water storage ring (12) is an annular "L" shape, and the outer sides of the water storage ring (12) are all provided with inclined surfaces.

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