Flue gas collecting device for discharge port of submerged arc furnace
By designing a flue gas collection device with multi-level guide channels at the discharge port of the blast furnace, the problem of low flue gas collection efficiency of the open exhaust hood is solved, and efficient flue gas collection and environmental protection are achieved.
Patent Information
- Application Number
- CN202421740039.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The open exhaust hood at the discharge port of the existing submerged arc furnace has low smoke collection efficiency, resulting in smoke diffusion, environmental pollution and high energy consumption.
A smoke collection device for the discharge port of a rotary submerged arc furnace is designed, which includes a side and upper guide part of the discharge port. Multiple pairs of baffles are used to form a longitudinal guide channel, which is connected to a gas collecting hood to form a transverse guide channel. The gas collecting hood is provided with an exhaust port to adapt to the characteristics of a rotary submerged arc furnace.
It significantly improves the flue gas collection efficiency, reduces flue gas diffusion, reduces environmental pollution and saves resources.
Smart Images
Figure CN223448967U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of mineral heat furnace discharge port flue gas collection devices. BACKGROUND
[0002] Mineral heat furnace is used for ore reduction smelting, mainly produces industrial silicon, silicon iron, manganese iron, chromium iron, high-titanium slag, silicon-manganese alloy, calcium carbide etc.. The discharge port of mineral heat furnace is used for the output of smelting product of mineral heat furnace. At present, the high-temperature dust-containing flue gas generated when the discharge port of mineral heat furnace discharges is collected by the open suction hood above the discharge port, since the collection efficiency of flue gas by open suction hood is low, energy consumption is large, causing flue gas to diffuse, polluting the environment of factory area, emission is not up to standard. SUMMARY
[0003] The utility model aims at providing a kind of mineral heat furnace discharge port flue gas collection devices, solve the technical problem of low collection efficiency of flue gas by open suction hood.
[0004] Therefore, a kind of mineral heat furnace discharge port flue gas collection devices is provided, comprising: discharge port side portion flow guide part, the discharge port side portion flow guide part includes multiple pairs of baffle installed on the side wall of mineral heat furnace and located at the two sides of each corresponding discharge port respectively, longitudinal flow guide passage is formed between each pair of baffle in the multiple pairs of baffle respectively;And discharge port upper portion flow guide part, the discharge port upper portion flow guide part includes gas collecting hood being set above the discharge port side portion flow guide part and being communicated with each longitudinal flow guide passage respectively, the gas collecting hood forms transverse flow guide passage, and the gas collecting hood is equipped with exhaust port being communicated with the transverse flow guide passage.
[0005] The above-mentioned mineral heat furnace discharge port flue gas collection device greatly improves the collection efficiency of flue gas of discharge port compared with open suction hood, and significantly reduces the pollution of flue gas to environment.
[0006] The embodiments of the utility model will be further described below in combination with the drawings and specific embodiments. The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be known by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0007] The drawings that form part of this specification are included to assist in the understanding of the present utility model, the content provided in the drawings and its description related to the present utility model can be used to explain the present utility model, but do not constitute improper limitation on the present utility model. In the drawings:
[0008] Figure 1 It is the structure schematic diagram of a kind of mineral heat furnace discharge port flue gas collection device for the embodiment of the utility model.
[0009] Figure 2 It is Figure 1Another angle view of the shown smelting furnace discharge port flue gas collecting device.
[0010] Figure 3 For Figure 1 The top view of the shown smelting furnace discharge port flue gas collecting device. DETAILED DESCRIPTION
[0011] The present application will be described in conjunction with the drawings in which like reference numerals refer to identical or similar elements throughout. It will be understood that like elements in different figures are designated with the same reference numeral and will not be repeatedly described. Before the present application is disclosed and described in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of the components set forth in the description or illustrated in the drawings. The present application is capable of other embodiments and of being practiced or being carried out in various ways.
[0012] The technical solutions and technical features provided in each part including the following description can be combined with each other without conflict.
[0013] In addition, the embodiments of the present application involved in the following description are generally only a part of the embodiments of the present application rather than all the embodiments, therefore, based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.
[0014] Regarding the terms and units in the present application: the terms "include", "contain", "have" and any variants thereof in the description and claims of the present application and related parts are intended to cover non-exclusive inclusion. In addition, other related terms and units in the present application can be reasonably interpreted based on the related content of the present application.
[0015] As Figures 1-3 As shown in the figure, a smelting furnace discharge port flue gas collecting device comprises: a discharge port side part flow guide part, the discharge port side part flow guide part comprises a plurality of pairs of baffles 1 installed on the side wall of the smelting furnace and respectively located on both sides of each corresponding discharge port 3, and a longitudinal flow guide channel is respectively formed between each pair of baffles 1 in the plurality of pairs of baffles 1; a discharge port upper part flow guide part, the discharge port upper part flow guide part comprises a gas collecting hood 2 arranged above the discharge port side part flow guide part and respectively communicated with each longitudinal flow guide channel, the gas collecting hood 2 forms a transverse flow guide channel, and an exhaust port 21 communicated with the transverse flow guide channel is arranged on the gas collecting hood 2.
[0016] The above-mentioned smoke collection device for the discharge port of the submerged arc furnace can improve the smoke collection efficiency, thereby reducing the diffusion of smoke and lowering the environmental pollution. Specifically, the pairs of baffles 1 of the side flow guide part form longitudinal flow guide channels, which can effectively guide and collect the smoke overflowing from the discharge port 3; the gas collecting hood 2 of the upper flow guide part of the discharge port is connected with the longitudinal flow guide channels to form transverse flow guide channels, which further collect, converge and discharge the smoke; this multi-level flow guide design greatly improves the smoke collection efficiency, and can capture more smoke than the open suction hood; the baffles 1 limit the possibility of the smoke diffusing to the surroundings, making it easier for the smoke to be guided to the designated channels.
[0017] Wherein, any two adjacent pairs of baffles among the pairs of baffles are respectively a first pair of baffles and a second pair of baffles, one baffle in the first pair of baffles is connected with one baffle opposite to it in the second pair of baffles by a cap plate 4, and the cap plate 4 constitutes the bottom plate of the gas collecting hood 2. Here, the cap plate 4 as the bottom plate of the gas collecting hood 2 helps to form a more closed space, improving the smoke collection efficiency; by connecting the opposite baffles in the adjacent two pairs of baffles, the cap plate 4 enhances the stability and rigidity of the whole structure; the presence of the cap plate 4 also helps to guide the smoke from the longitudinal flow guide channels to enter the transverse flow guide channels of the gas collecting hood 2 upwardly, ensuring the continuity of the smoke flow; in addition, the cap plate 4 as a barrier can prevent the smoke from diffusing outwardly from the gap between the baffles, further improving the smoke collection efficiency.
[0018] The submerged arc furnace can be a rotary submerged arc furnace, and the pairs of baffles rotate with the furnace while the gas collecting hood is fixed. Generally, the furnace discharges through the part of the multiple discharge ports of the furnace that rotates to a set position (such as Figure 3 shown, the furnace discharges when the discharge port rotates to the upper left), and the gas collecting hood 2 is only connected with the longitudinal flow guide channels corresponding to the discharge port in the set position. This design is very ingenious and is specially optimized for the characteristics of the rotary submerged arc furnace, which can: 1) adapt to the rotation characteristics: the design of the rotary submerged arc furnace allows discharging at different positions, and this design can adapt to the rotation characteristics of the furnace body. 2) flexibility and precise control: by controlling the furnace body to rotate to a specific position for discharging, the discharging process can be precisely controlled, improving the flexibility and accuracy of the operation. 3) save resources: the gas collecting hood is only connected with the discharge port at a specific position, avoiding the simultaneous smoke collection of all discharge ports, and saving the manufacturing cost of the gas collecting hood. The above-mentioned submerged arc furnace is a submerged arc furnace for industrial silicon smelting.
[0019] The above has described the related content of the utility model. The ordinary skilled in the art can realize the utility model based on the description. Based on the above content of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor should belong to the protection scope of the utility model.
Claims
1. Fume collection device at the discharge port of submerged arc furnace, characterized by: include: A discharge port side guide portion, the discharge port side guide portion comprising a plurality of pairs of baffles mounted on the side wall of the submerged arc furnace and located on both sides of each corresponding discharge port, wherein longitudinal guide channels are formed between each pair of baffles; and The upper guide part of the discharge port includes an air collecting hood arranged above the side guide part of the discharge port and connected to each longitudinal guide channel respectively. The air collecting hood forms a transverse guide channel, and the air collecting hood is provided with an exhaust port connected to the transverse guide channel.
2. The fume collecting device for the discharge port of a submerged arc furnace according to claim 1, characterized in that: Assuming that any two adjacent pairs of baffles in the multiple pairs of baffles are the first pair of baffles and the second pair of baffles, a cap plate is connected between one baffle in the first pair of baffles and the opposite baffle in the second pair of baffles, and the cap plate constitutes the bottom plate of the air collecting hood.
3. The fume collection device for the discharge port of a submerged arc furnace according to claim 1 or 2, characterized in that: The submerged arc furnace is a rotary submerged arc furnace, the multiple pairs of baffles rotate with the submerged arc furnace and the gas collecting hood is fixed.
4. The fume collecting device for the discharge port of a submerged arc furnace according to claim 3, characterized in that: The submerged arc furnace discharges materials through some of the multiple discharge ports of the submerged arc furnace that rotate to the set orientation as the submerged arc furnace rotates; the gas collecting hood is only connected to the longitudinal guide channels corresponding to the discharge ports located in the set orientation.
5. The fume collection device for the discharge port of a submerged arc furnace according to claim 1, characterized in that: The submerged arc furnace is a submerged arc furnace used for industrial silicon smelting.