Furnace bottom cooling device of ferroalloy submerged arc furnace

Abstract

The utility model relates to the technical field of submerged arc furnace cooling devices, in particular to a ferroalloy submerged arc furnace bottom cooling device which comprises a submerged arc furnace body, a submerged arc furnace support and a water cooling device, the submerged arc furnace support abuts against the lower surface of the submerged arc furnace body, the water cooling device is arranged in the submerged arc furnace support, and the cooling device comprises a heat conduction disc. The heat conduction disc is fixedly connected with the lower surface of the submerged arc furnace, a circulating water guide pipe is arranged on the lower surface of the heat conduction disc, a supporting ring is arranged on the lower surface of the circulating water guide pipe, and supporting columns are fixedly connected to the surface of the supporting ring. According to the utility model, the water cooling device is arranged, so that the heat dissipation of the bottom wall of the furnace body is uniform, the cooling effect is greatly improved, the heated cooling water can be used for other purposes, the heat energy is fully utilized, the cooled water can be returned, the cyclic utilization is facilitated, the cooling cost is greatly reduced, the device is green and environment-friendly, and the practicability of the device is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of submerged arc furnace cooling devices, and in particular to a bottom cooling device for a ferroalloy submerged arc furnace. Background Technology

[0002] A submerged arc furnace, also known as an electric arc furnace or resistance furnace, is mainly used for the reduction and smelting of ores, carbonaceous reducing agents, and solvents. It primarily produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, and ferrosilicon-manganese alloys, which are important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide.

[0003] Existing equipment, such as CN214496425U, describes a furnace bottom cooling device for a ferroalloy submerged arc furnace. This device includes a heat dissipation duct support and a pre-embedded air duct. One end of the pre-embedded air duct is connected to the heat dissipation duct support, and the other end is connected to a fan. The heat dissipation duct support includes a central ring, an outer circular connecting strip, and heat dissipation ribs connecting the central ring and the outer circular connecting strip. The heat dissipation ribs are arranged in a radiating pattern, with the central ring located above the heat dissipation ribs. The pre-embedded air duct is aligned with the central ring of the heat dissipation duct support. In this invention, the air duct is embedded during the civil engineering foundation construction, and the heat dissipation duct support is placed at the bottom of the ferroalloy submerged arc furnace. After the fan is started, cold outdoor air is blown out through the pre-embedded air duct towards the center of the heat dissipation duct support. The cold air disperses from below the central ring towards the space between two adjacent heat dissipation ribs, cooling the furnace bottom and completely solving the problem of excessively high furnace bottom temperature damaging the furnace body.

[0004] In existing technologies, hot water pipes are mostly fixed and cannot fully cover the furnace bottom, which can easily lead to uneven heat dissipation, affecting the use of the electric arc furnace, reducing working efficiency, and also preventing the recycling of cooling water, resulting in resource waste. These issues need to be addressed. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a bottom cooling device for ferroalloy submerged arc furnaces.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a furnace bottom cooling device for a ferroalloy submerged arc furnace, comprising a submerged arc furnace body, a submerged arc furnace support, and a water cooling device. The submerged arc furnace support abuts against the lower surface of the submerged arc furnace body. The water cooling device is disposed inside the submerged arc furnace support. The cooling device includes a heat-conducting plate, which is fixedly connected to the lower surface of the submerged arc furnace. A circulating water pipe is provided on the lower surface of the heat-conducting plate, and a supporting ring is provided on the lower surface of the circulating water pipe. A supporting column is fixedly connected to the surface of the supporting ring.

[0007] Furthermore, the plurality of support columns are arranged in a circular pattern, and anti-slip pads are fixedly connected to the surface of the support columns, while connectors are fixedly connected to the surface of the circulating water pipe.

[0008] Furthermore, a water outlet pipe is fixedly connected to the inner wall of the connector, a water pump is fixedly connected to the surface of the water outlet pipe, and a heat exchanger is fixedly connected to one end of the circulating water pipe through the connector.

[0009] Furthermore, a water exchange pipe is fixedly connected inside the heat exchanger, a water storage tank is fixedly connected to the surface of the water exchange pipe, a connecting pipe is fixedly connected inside the water storage tank, and the end of the connecting pipe away from the water storage tank is fixedly connected to a water pump.

[0010] Furthermore, the surface of the main body of the electric arc furnace is provided with an air cooling device, which includes an air duct. The air duct is disposed on the surface of the main body of the electric arc furnace, and an air outlet is opened on the inner wall of the air duct. Multiple air outlets are arranged linearly.

[0011] Furthermore, an air inlet is provided on the surface of the air duct, an air inlet pipe is fixedly connected to the inner wall of the air inlet, and a fan is fixedly connected to the end of the air inlet pipe away from the inner wall of the air outlet.

[0012] Furthermore, a connecting column is fixedly connected to the lower surface of the air duct, a caster wheel is fixedly connected to the lower surface of the connecting column, a fixing block is fixedly connected to the surface of the air duct, a bolt is slidably connected inside the fixing block, and a nut is threaded onto the surface of the bolt.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting up a water cooling device, it is easy to achieve uniform heat dissipation from the bottom wall of the furnace. To this end, the water pump is started, and the water pump draws water from the water storage tank through the connecting pipe. The water then enters the circulating water pipe through the outlet pipe. The heat inside the electric arc furnace diffuses to the heat conduction plate. The cold water inside the circulating water pipe absorbs the temperature of the surface of the heat conduction plate. After the hot water flows into the heat exchanger, it becomes cold water and flows back into the water storage tank. By setting up a water cooling device, it is easy to achieve uniform heat dissipation from the bottom wall of the furnace, which greatly improves the cooling effect. The heated cooling water can also be used for other purposes, making full use of the heat energy. The cooled water can be returned for recycling, which greatly reduces the cooling cost and is environmentally friendly. This effectively improves the practicality of the equipment.

[0015] 2. In this utility model, by setting up an air-cooling device, it is convenient to dissipate heat from the upper and middle parts of the furnace body. To this end, the air ducts are pushed by universal wheels, and the two air ducts are fixed with bolts and nuts. When the fan is turned on, the fan delivers cold air from the air inlet pipe into the air ducts, and then blows the cold air onto the surface of the furnace body through the air outlet. By setting up an air-cooling device, it is convenient to dissipate heat from the upper part of the furnace body, and the temperature of the upper and middle parts of the furnace body can be more accurately controlled to prevent the temperature from being too low, thus effectively improving the convenience of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a bottom cooling device for a ferroalloy submerged arc furnace;

[0017] Figure 2 This utility model provides a structural schematic diagram of a water-cooling device in a furnace bottom cooling system for a ferroalloy submerged arc furnace.

[0018] Figure 3 This utility model proposes a furnace bottom cooling device for a ferroalloy submerged arc furnace. Figure 2 A magnified schematic diagram of the bottom structure of the heat transfer plate;

[0019] Figure 4 This utility model provides a structural schematic diagram of the air-cooling device in the furnace bottom cooling device of a ferroalloy submerged arc furnace;

[0020] Legend:

[0021] 1. Main body of the electric arc furnace; 2. Support frame of the electric arc furnace; 3. Water cooling device; 301. Heat transfer plate; 302. Circulating water pipe; 303. Support ring; 304. Support column; 305. Anti-slip pad; 306. Connector; 307. Water outlet pipe; 308. Water pump; 309. Water storage tank; 310. Heat exchanger; 311. Water exchange pipe; 312. Connecting pipe; 4. Air cooling device; 401. Air duct; 402. Air outlet; 403. Air inlet; 404. Air inlet pipe; 405. Fan; 406. Connecting column; 407. Casters; 408. Fixing block; 409. Bolt; 410. Nut. Detailed Implementation

[0022] Please see Figure 1-4 This utility model provides a technical solution: a furnace bottom cooling device for a ferroalloy submerged arc furnace, comprising a submerged arc furnace body 1, a submerged arc furnace support 2, and a water cooling device 3. The submerged arc furnace support 2 abuts against the lower surface of the submerged arc furnace body 1, and the water cooling device 3 is disposed inside the submerged arc furnace support 2.

[0023] The specific setup and function of its water-cooling device 3 and air-cooling device 4 will be explained below.

[0024] In this embodiment: the cooling device includes a heat-conducting plate 301, which is fixedly connected to the lower surface of the electric arc furnace. A circulating water pipe 302 is provided on the lower surface of the heat-conducting plate 301, and a supporting ring 303 is provided on the lower surface of the circulating water pipe 302. A supporting column 304 is fixedly connected to the surface of the supporting ring 303.

[0025] The effect achieved by the above components is that by setting up the circulating water pipe 302, it is easier to increase the contact time and make the heat dissipation of the bottom wall of the furnace more uniform.

[0026] Specifically, multiple support columns 304 are arranged in a circle, and anti-slip pads 305 are fixedly connected to the surface of the support columns 304. Connectors 306 are fixedly connected to the surface of the circulating water pipe 302.

[0027] The effect achieved by the above components is that by setting the anti-slip pad 305, a better anti-slip effect is achieved, which makes it easier to place more stably.

[0028] Specifically, a water outlet pipe 307 is fixedly connected to the inner wall of connector 306, a water pump 308 is fixedly connected to the surface of water outlet pipe 307, and a heat exchanger 310 is fixedly connected to one end of the circulating water pipe 302 and connector 306.

[0029] The effect achieved by the above components is that by setting up heat exchanger 310, the heated cooling water can be used for other purposes.

[0030] Specifically, a water exchange pipe 311 is fixedly connected inside the heat exchanger 310, a water storage tank 309 is fixedly connected to the surface of the water exchange pipe 311, a connecting pipe 312 is fixedly connected inside the water storage tank 309, and the end of the connecting pipe 312 away from the water storage tank 309 is fixedly connected to the water pump 308.

[0031] The effect achieved by the above components is that by setting up the water exchange pipe 311 and the water storage tank 309, it is convenient to circulate the cooled water.

[0032] Specifically, the surface of the main body 1 of the electric arc furnace is provided with an air cooling device 4. The air cooling device 4 includes an air duct 401, which is provided on the surface of the main body 1 of the electric arc furnace. An air outlet 402 is opened on the inner wall of the air duct 401, and multiple air outlets 402 are arranged linearly.

[0033] The effect achieved by the above components is to increase the contact area and enhance the cooling effect by setting the air outlet 402.

[0034] Specifically, the surface of the air duct 401 is provided with an air inlet 403, and an air inlet pipe 404 is fixedly connected to the inner wall of the air inlet 403. A fan 405 is fixedly connected to the end of the air inlet pipe 404 away from the inner wall of the air outlet 402.

[0035] Specifically, a connecting column 406 is fixedly connected to the lower surface of the air duct 401, a caster wheel 407 is fixedly connected to the lower surface of the connecting column 406, a fixing block 408 is fixedly connected to the surface of the air duct 401, a bolt 409 is slidably connected inside the fixing block 408, and a nut 410 is threadedly connected to the surface of the bolt 409.

[0036] The effect achieved by the above components is that by setting the casters 407, it is easy to disassemble and move the air-cooling device 4.

[0037] Working Principle: By setting up a water-cooling device 3, uniform heat dissipation from the furnace bottom wall is facilitated. The water pump 308 is activated, drawing water from the storage tank 309 via the connecting pipe 312. The water then flows through the outlet pipe 307 into the circulating water pipe 302. Heat from inside the submerged arc furnace diffuses to the heat-conducting plate 301. The cold water inside the circulating water pipe 302 absorbs the heat from the surface of the heat-conducting plate 301. The hot water flows into the heat exchanger 310, becomes cold water, and then flows back into the storage tank 309. The water-cooling device 3 ensures uniform heat dissipation from the furnace bottom wall, greatly improving the cooling effect. The heated cooling water can also be reused, making full use of the thermal energy. The cooled water can then be returned to its source. To facilitate recycling, significantly reduce cooling costs, and promote environmental friendliness, the equipment's practicality is effectively enhanced. The air-cooling device 4 facilitates heat dissipation from the upper and middle parts of the furnace body. The air ducts 401 are pushed by casters 407, and the two air ducts 401 are secured with bolts 409 and nuts 410. The fan 405 is then turned on, delivering cold air from the inlet pipe 404 into the air ducts 401, and then blowing the cold air onto the surface of the furnace body through the outlet 402. The air-cooling device 4 facilitates heat dissipation from the upper part of the furnace body, allowing for more accurate temperature control of the upper and middle parts and preventing excessively low temperatures, thus effectively improving the equipment's convenience.

Claims

1. A furnace bottom cooling device for a ferroalloy submerged arc furnace, comprising a main body of the submerged arc furnace (1), a support frame of the submerged arc furnace (2), and a water cooling device (3), characterized in that: The electric arc furnace support (2) abuts against the lower surface of the electric arc furnace body (1). The water cooling device (3) is installed inside the electric arc furnace support (2). The cooling device includes a heat-conducting plate (301). The heat-conducting plate (301) is fixedly connected to the lower surface of the electric arc furnace. A circulating water pipe (302) is provided on the lower surface of the heat-conducting plate (301). A supporting ring (303) is provided on the lower surface of the circulating water pipe (302). A supporting column (304) is fixedly connected to the surface of the supporting ring (303).

2. The furnace bottom cooling device for a ferroalloy submerged arc furnace according to claim 1, characterized in that: The multiple support columns (304) are arranged in a circle, and anti-slip pads (305) are fixedly connected to the surface of the support columns (304). Connectors (306) are fixedly connected to the surface of the circulating water pipe (302).

3. The furnace bottom cooling device for a ferroalloy submerged arc furnace according to claim 2, characterized in that: The inner wall of the connector (306) is fixedly connected to a water outlet pipe (307), and the surface of the water outlet pipe (307) is fixedly connected to a water pump (308). The circulating water pipe (302) is fixedly connected to a heat exchanger (310) at one end of the connector (306).

4. The furnace bottom cooling device for a ferroalloy submerged arc furnace according to claim 3, characterized in that: The heat exchanger (310) is fixedly connected to a water exchange pipe (311), and a water storage tank (309) is fixedly connected to the surface of the water exchange pipe (311). A connecting pipe (312) is fixedly connected to the inside of the water storage tank (309), and the end of the connecting pipe (312) away from the water storage tank (309) is fixedly connected to a water pump (308).

5. The furnace bottom cooling device for a ferroalloy submerged arc furnace according to claim 1, characterized in that: The surface of the main body (1) of the electric arc furnace is provided with an air cooling device (4). The air cooling device (4) includes an air duct (401). The air duct (401) is provided on the surface of the main body (1) of the electric arc furnace. An air outlet (402) is opened on the inner wall of the air duct (401). Multiple air outlets (402) are arranged in a linear manner.

6. The hearth cooling device for a ferroalloy submerged arc furnace according to claim 5, characterized in that: The surface of the air duct (401) is provided with an air inlet (403), and an air inlet pipe (404) is fixedly connected to the inner wall of the air inlet (403). A fan (405) is fixedly connected to one end of the air inlet pipe (404) away from the inner wall of the air outlet (402).

7. The furnace bottom cooling device for a ferroalloy submerged arc furnace according to claim 6, characterized in that: A connecting column (406) is fixedly connected to the lower surface of the air duct (401), a caster wheel (407) is fixedly connected to the lower surface of the connecting column (406), a fixing block (408) is fixedly connected to the surface of the air duct (401), a bolt (409) is slidably connected inside the fixing block (408), and a nut (410) is threadedly connected to the surface of the bolt (409).

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