Circulating cooling device of blast furnace water supply equipment

Abstract

The utility model discloses a circulating cooling device of blast furnace water supply equipment, which comprises a water storage tank with a top opening, cooling fans are symmetrically arranged on the upper portion of an inner cavity of the water storage tank, the bottom of the water storage tank is communicated with one end of a water outlet pipe, the other end of the water outlet pipe is communicated with one end of a cooling pipeline, and the other end of the cooling pipeline is communicated with an inlet of a water pump. The other end of the water return pipe is communicated with the spray head, and a water outlet of the spray head is located above the top opening of the water storage tank. The cooling pipeline is arranged on the outer surface of the blast furnace to take away heat of the blast furnace, and the cooling pipeline is spiral, so that the circulation path is increased, the cooling effect is enhanced, the manufacturing cost is low, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of smelting equipment, in particular to a circulating cooling device for blast furnace water supply equipment. Background Art

[0002] Blast furnace smelting is a continuous production process, and the whole process is completed in the process of mutual contact between the charge from top to bottom and the gas from bottom to top. The charge is loaded into the furnace from the top of the furnace in a certain batch, and hot air heated to 1000-1300℃ by the hot blast furnace is blown into the tuyere. The coke in the charge burns in front of the tuyere, generating high temperature and reducing gas, which heats the slowly descending charge during the rising process in the furnace and reduces the oxides in the iron ore to metallic iron.

[0003] During the smelting process, part of the water in the blast furnace is only heated, and the other part is not only heated but also polluted. Unpolluted hot wastewater is recycled after cooling. Polluted wastewater is recycled after proper treatment or continued to be used by other users. The blast furnace water supply equipment mainly adopts circulating water supply, and the circulation rate should be increased as much as possible. The circulating water system used to cool the blast furnace body plays a very important role in the production of the blast furnace. It can not only protect the safety of the blast furnace equipment, but also affect the production efficiency. Among them, an important indicator of the circulating water used to cool the blast furnace body is the inlet temperature of the circulating water when entering the blast furnace cooling system. The lower the inlet temperature, the better the circulating cooling effect. The existing blast furnace ironmaking equipment cooling device is only an ordinary circulating water pipe connected to the water tank, with low heat dissipation efficiency, resulting in poor cooling and cooling effect on the blast furnace ironmaking equipment. If a more intelligent cooling device on the market is used, the blast furnace needs to be improved or replaced with a new furnace body, which is time-consuming and labor-intensive, with high work intensity, and is not conducive to controlling production costs. Therefore, it is urgent to design a simple circulating cooling device according to the existing blast furnace equipment structure to improve the heat dissipation efficiency of circulating water and enhance the cooling effect on blast furnace ironmaking equipment. Utility Model Content

[0004] The utility model provides a circulating cooling device for blast furnace water supply equipment, aiming to solve the problem that the existing circulating cooling device has low heat dissipation efficiency, resulting in poor cooling effect of blast furnace ironmaking equipment, and the replacement of equipment is expensive, which is not conducive to controlling production costs.

[0005] To achieve its purpose, the utility model adopts the following technical solutions:

[0006] A circulating cooling device for blast furnace water supply equipment comprises a water storage tank with an opening at the top, a cooling fan is symmetrically arranged on the upper part of the inner cavity of the water storage tank, the bottom of the water storage tank is connected with one end of a water outlet pipe, the other end of the water outlet pipe is connected with one end of a cooling pipeline, the other end of the cooling pipeline is connected with a water pump inlet, the water pump outlet is connected with one end of a return pipe, the other end of the return pipe is connected with a nozzle, and the water outlet of the nozzle is located above the top opening of the water storage tank.

[0007] Preferably, the angle between the cooling fan and the inner wall of the water tank is 30°-45°.

[0008] Preferably, the heat dissipation fan is a waterproof electric fan.

[0009] Preferably, the water outlet pipe and the cooling pipeline are connected via a pipe connector.

[0010] Preferably, the cooling pipe is spiral-shaped.

[0011] Preferably, the nozzle is a shower nozzle.

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

[0013] 1. The circulating cooling device provided by the utility model takes away the heat of the blast furnace by installing a cooling pipe on the outer surface of the blast furnace, and the cooling pipe is spiral, which increases the flow path and enhances the cooling effect. It is simple and convenient, and the consumables used are all materials that are easily purchased on the market. It is easy to make and does not require much improvement or replacement of the new furnace body during installation. It has a wide range of applications, low cost, and strong practicality.

[0014] 2. The circulating cooling device provided by the utility model has a cooling fan symmetrically fixedly connected to the upper part of the inner cavity of the water storage tank. When the hot water is sprayed from the nozzle into the water storage tank, the cooling fan blows out cold air to accelerate the cooling, further improving the heat dissipation efficiency of the blast furnace circulating water and strengthening the cooling effect of the blast furnace ironmaking equipment. Moreover, the cooling fan is a waterproof electric fan with good wear resistance and corrosion resistance. Through the waterproof design and materials, the circuit board and motor of the cooling fan are protected from the damage of the humid environment, extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the circulating cooling device of the utility model;

[0016] Figure 2 It is a partial cross-sectional view of the circulating cooling device of the utility model;

[0017] In the figure: 1- water storage tank; 2- cooling pipe; 3- water pump; 4- nozzle; 5- water outlet pipe; 6- water return pipe; 7- cooling fan; 8- pipe connector. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] like Figure 1-2 As shown, the utility model is a circulating cooling device for blast furnace water supply equipment, comprising a water storage tank 1 with an opening at the top, a cooling fan 7 is symmetrically fixed to the upper part of the inner cavity of the water storage tank 1 by bolts, and the angle between the cooling fan 7 and the inner wall of the water storage tank 1 is 30°. The bottom of the water storage tank 1 is vertically connected to one end of the water outlet pipe 5, the other end of the water outlet pipe 5 is threadedly connected to one end of the spiral cooling pipe 2 through a pipe connector 8, the other end of the cooling pipe 2 is connected to the inlet of the water pump 3, the outlet of the water pump 3 is connected to one end of the return pipe 6, the other end of the return pipe 6 is connected to the nozzle 4, the nozzle 4 is a shower nozzle, and the water outlet of the nozzle 4 is located directly above the top opening of the water storage tank 1 and vertically toward the water storage tank 1. Among them, the water tank 1, cooling pipe 2, nozzle 4, water outlet pipe 5, return pipe 6, and pipe connector 8 are all made of stainless steel, which is sturdy and durable with good corrosion resistance. The cooling fan 7 is a waterproof electric fan with good wear resistance and corrosion resistance. Through the waterproof design and materials, the circuit board and motor of the cooling fan are protected from the damage of the humid environment, thereby extending the service life.

[0020] When using the circulating cooling device of the present application, the cooling pipe 2 is first wound around the outer surface of the blast furnace and fixed by screws and a support frame, and then the cooling pipe 2 is connected to the outlet pipe 5 by a pipe connector 8, and the water pump 3, the return pipe 6 and the shower nozzle 4 are sealed and connected. Water is filled in the water storage tank 1, and the power of the water pump 3 is turned on to pump the water in the water storage tank 1 from the outlet pipe 5 into the cooling pipe 2 and then into the return pipe 6. When the water passes through the spiral cooling pipe 2, it takes away the heat of the blast furnace and is sprayed back to the water storage tank 1 through the nozzle 4 for recycling. When the circulating water flows into the water storage tank 1 from the nozzle 4, the cooling fan 7 arranged obliquely in the inner cavity of the water storage tank 1 blows in cold air to accelerate the cooling, which further improves the heat dissipation efficiency of the blast furnace circulating water and strengthens the cooling effect of the blast furnace ironmaking equipment.

Claims

1. A circulating cooling device for blast furnace water supply equipment, characterized in that: The invention comprises a water storage tank (1) with an opening at the top, wherein a cooling fan (7) is symmetrically arranged at the upper part of the inner cavity of the water storage tank (1), the bottom of the water storage tank (1) is connected to one end of a water outlet pipe (5), the other end of the water outlet pipe (5) is connected to one end of a cooling pipe (2), the other end of the cooling pipe (2) is connected to an inlet of a water pump (3), the outlet of the water pump (3) is connected to one end of a water return pipe (6), the other end of the water return pipe (6) is connected to a nozzle (4), and the water outlet of the nozzle (4) is located above the opening at the top of the water storage tank (1).

2. A circulating cooling device for blast furnace water supply equipment according to claim 1, characterized in that: The included angle between the cooling fan (7) and the inner wall of the water storage tank (1) is 30°-45°.

3. A circulating cooling device for blast furnace water supply equipment according to claim 2, characterized in that: The heat dissipation fan (7) is a waterproof electric fan.

4. A circulating cooling device for blast furnace water supply equipment according to any one of claims 1 to 3, characterized in that: The water outlet pipe (5) is connected to the cooling pipe (2) via a pipe connector (8).

5. A circulating cooling device for blast furnace water supply equipment as claimed in claim 4, characterized in that: The cooling pipe (2) is spiral-shaped.

6. A circulating cooling device for blast furnace water supply equipment as claimed in claim 5, characterized in that: The nozzle (4) is a shower nozzle.

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