Arc-shaped sealing blanking hopper of tilting metallurgical furnace

Abstract

The utility model discloses an arc-shaped sealing blanking hopper of a tilting metallurgical furnace, which relates to the technical field of metallurgical engineering and industrial furnaces and comprises a main body, the main body is provided with an upper hopper and a lower hopper, and the hoppers are provided with gate valves for adjusting the size of blanking ports and arc-shaped panels for reducing material leakage gaps. And a pressing sheet is arranged on the lower arc-shaped panel and used for fixing rock wool to play a plugging role. Through the unique arc-shaped design and the sealing structure of the arc-shaped sealing feeding hopper, on the premise that safe tilting of a metallurgical furnace under various emergency conditions is not hindered, material dust is prevented from leaking and scattering in the feeding process, and the feeding furnace which is efficient in material, low in air leakage rate and good in sealing performance is achieved; and the device is convenient to manufacture, firm, durable, convenient to disassemble and assemble, safe, environment-friendly and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical engineering and industrial furnace kiln technical field, concretely is a kind of arc sealing material drop hopper of tilting metallurgical furnace kiln. BACKGROUND

[0002] Firstly, as an important equipment for metal smelting, the design and operation of metallurgical furnace kiln directly affect the efficiency of smelting process, product quality and energy consumption. In tilting metallurgical furnace kiln, arc sealing feeding hopper as a kind of key auxiliary equipment, its design and optimization are of great significance to improve the operating efficiency and safety of furnace kiln. The traditional feeding hopper often has problems such as material splashing and leakage during feeding, which not only affects the furnace environment, but also threatens the safety of operators. Arc sealing feeding hopper can effectively solve these problems through its unique arc design and sealing structure, realize uniform and stable feeding of materials, reduce waste and pollution, and improve smelting efficiency. In addition, with the increasing strictness of environmental protection regulations and the improvement of people's environmental protection consciousness, the demand for environmental protection technology in metallurgical industry is also increasing. As an environmentally friendly equipment, the design and application of arc sealing feeding hopper conforms to the development trend of current metallurgical industry, and helps to promote the sustainable development of metallurgical industry. In summary, the technical background of tilting metallurgical furnace kiln arc sealing feeding hopper mainly lies in the continuous development of metallurgical furnace kiln technology, the increasing strictness of environmental protection regulations and the improvement of people's environmental protection consciousness. These factors jointly promote the continuous innovation and application of arc sealing feeding hopper technology.

[0003] In order to solve the problems existing in the prior art, people have carried out long-term exploration and put forward a variety of solutions. For example, Chinese patent document discloses a bottom blowing furnace feeding port water jacket anti-bonding protection device [authorized publication number CN2614338Y], which comprises: a feeding hopper, a feeding port water jacket, an inner sleeve is arranged between the feeding hopper and the feeding port water jacket, the feeding port water jacket and the feeding hopper and the feeding port water jacket and the furnace shell are connected by bolts, and the lower part of the feeding port water jacket is installed in refractory material. A black metal smelting furnace feeding hopper [authorized publication number CN214333398U] comprises: a feeding hopper body, the feeding hopper body comprises an upper funnel and a lower discharge part, a first mounting plate is arranged on the outer circle of the lower discharge part, one or more vibration motors are arranged on the bottom of the first mounting plate, a second mounting plate is arranged on the outer circle of the lower discharge part, one or more shock absorbers are arranged on the bottom of the second mounting plate, the shock absorber comprises a metal bellows, an internal spring, an upper flange and a lower flange, the internal spring is arranged in the metal bellows, the metal bellows and the internal spring are welded on the upper flange at the top, the metal bellows and the internal spring are welded on the lower flange at the bottom, the upper flange is connected to the second mounting plate, and the lower flange is connected to the smelting furnace.

[0004] The scheme solves the problems in the prior art to some extent, but at least has the following defects: the gap of the hopper cannot be effectively sealed when the furnace tilts, and the powder material is prone to escape and dust; the furnace cannot be tilted until the hopper is manually lifted, and the furnace cannot be turned in or out at any time in an emergency; and the air leakage rate of the charging port cannot be adjusted.

[0005] Therefore, a tilting metallurgical furnace arc-shaped sealing charging hopper is provided to overcome the above problems. Content of the utility model

[0006] The utility model aims at solving the problems in the prior art, eliminating or reducing the problems such as material scattering, leakage and air leakage in the charging process, and provides a tilting metallurgical furnace arc-shaped sealing charging hopper.

[0007] To solve the above technical problems, the utility model provides a tilting metallurgical furnace arc-shaped sealing charging hopper which comprises a main body, the main body is provided with two hoppers in the up and down directions, the hopper is provided with a plug valve to adjust the size of the discharging port and an arc-shaped panel to reduce the material leakage gap, the arc-shaped panel is provided with a pressing piece to fix the rock wool and play a blocking role, one end of the arc-shaped panel is provided with a blocking rod to prevent the pressing piece from being blocked, and the arc-shaped panel is provided with an upper hopper and a lower hopper to uniformly and stably charge, the lower part of the lower hopper is provided with a flange plate to be connected and fixed with the furnace, and the upper part of the upper hopper is provided with a flat panel to be connected and fixed with the operation platform.

[0008] Further, the main body is composed of two parts, the flat panel, the upper hopper, the plug valve, the upper arc-shaped panel form the upper half part, and the lower arc-shaped panel, the blocking rod, the lower hopper and the flange plate form the lower half part, and the upper and lower parts are combined to form the main body.

[0009] Further, the arc-shaped panel is composed of two rectangular arc-shaped steel plates, and the curvature of the arc-shaped panel is determined according to the curvature formed when the furnace is turned out. The upper arc-shaped panel is slightly longer than the lower arc-shaped panel, and the two ends are slightly raised upward. The upper arc-shaped panel is slightly longer than the lower arc-shaped panel, and the two ends are slightly raised upward. To form a tight joint closing effect, and prevent the upper and lower arc-shaped panels from being blocked or pried during the turning in and out of the furnace.

[0010] Further, the pressing piece is arranged only on the lower arc-shaped panel and is composed of four iron pieces with the same length and width as the lower arc-shaped panel. Two long pressing pieces are arranged on the upper part of the short pressing piece, the four corners are pressed by screws, the rock wool is cut to be slightly wider than the pressing piece, and the rock wool is placed under the pressing piece and pressed tightly. When the rock wool is pressed to the edge and raised, the rock wool is prevented from escaping and escaping.

[0011] Further, the blocking rod is arranged on the lower arc-shaped panel and is composed of an iron rod with the same length as the turning-in end of the lower arc-shaped panel, and is welded on the edge of the end head with a thickness slightly higher than the height of the pressed tablet after pressing, so as to prevent the pressed tablet from scratching the upper arc-shaped panel, hindering the tablet from being raised and damaged, and even causing the upper hopper to be skewed and stuck to affect the turning-in of the furnace and cause accidents.

[0012] Further, the upper hopper and the lower hopper are composed of a conical funnel welded by carbon steel, and the upper hopper has the same size or slightly smaller size of the lower discharge port than the receiving port of the lower hopper.

[0013] Further, the plug valve is integrally purchased and processed, is arranged on the upper part of the upper arc-shaped panel and is close to the lower discharge port of the lower part of the lower hopper, and the plug port is inclined downward. The hollow arc-shaped plug is designed according to the feeding amount, and a circular or elliptical discharge hole is formed after the two plugs are completely closed.

[0014] Further, the flange plate is arranged on the lower part of the lower hopper and is made of ordinary carbon steel, and four arc-shaped strip openings for fixing bolts are arranged on the flange plate to be connected with the upper part of the furnace.

[0015] Further, the flat plate is arranged on the upper part of the upper hopper and is made of ordinary carbon steel plate, the flat plate is larger than the opening of the operation platform to be clamped on the operation platform, and the flat plate needs to be as flat as possible to reduce the gap with the surface of the operation platform.

[0016] Compared with the prior art, the utility model has the advantages of simple structure design, convenient manufacturing, firmness, durability, convenient disassembly and assembly, and can effectively prevent or reduce the leakage and scattering of the dust of the material into the furnace and the air leakage rate, and will not have adverse effects on the turning-in and turning-out of the tilting furnace in the emergency state.

[0017] The structure is simple in design, convenient in manufacturing, firm in use, durable, convenient in disassembly and assembly, can effectively prevent or reduce the leakage and scattering of the dust of the material into the furnace and the air leakage rate, and will not have adverse effects on the turning-in and turning-out of the tilting furnace in the emergency state. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a front view of an embodiment of the arc-shaped sealing feeding hopper of the tilting metallurgical furnace;

[0019] Figure 2 is a side view of an embodiment of the arc-shaped sealing feeding hopper of the tilting metallurgical furnace;

[0020] Figure 3 is a front view of the upper half of an embodiment of the arc-shaped sealing feeding hopper of the tilting metallurgical furnace;

[0021] Figure 4 is a front view of the lower half of an embodiment of the arc-shaped sealing feeding hopper of the tilting metallurgical furnace;

[0022] Figure 5 is a top view of one embodiment of the tilting type metallurgical furnace kiln arc-shaped sealing feeding hopper of the utility model;

[0023] Figure 6 is a bottom view of one embodiment of the tilting type metallurgical furnace kiln arc-shaped sealing feeding hopper of the utility model.

[0024] Explanation of reference numerals in the drawing:

[0025] 1, main body; 2, hopper; 21, upper hopper; 22, lower hopper; 3, arc-shaped panel; 31, upper arc-shaped panel; 32, lower arc-shaped panel; 4, pressing sheet; 5, rock wool; 6, blocking stick; 7, flange plate; 8, flat panel; 9, plug valve; 91, front plug valve; 92, rear plug valve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-6 The utility model provides a technical scheme:

[0028] As Figures 1-3 shown, the tilting type metallurgical furnace kiln arc-shaped sealing feeding hopper comprises a main body 1 and a hopper 2, wherein the upper half is composed of an upper hopper 21, a flat panel 8, an upper arc-shaped panel 31, a front plug valve 91 and a rear plug valve 92, and the lower half is composed of a lower hopper 22, a lower arc-shaped panel 32, a pressing sheet 4, rock wool 5, a blocking stick 6 and a flange plate 7. When in use, first, an opening is needed to be opened on an operation platform, the size of which is the same as that of the upper opening of the upper hopper 21, then the upper half of the tilting type metallurgical furnace kiln arc-shaped sealing feeding hopper is installed into the opening, and then the flange plate 7 of the lower half of the tilting type metallurgical furnace kiln arc-shaped sealing feeding hopper is connected with the flange of the furnace kiln by bolts. When installing and connecting, it is needed to pay attention to that the long side of the arc-shaped panel 3 is consistent with the turning direction of the furnace kiln when tilting. When in use, the tilting type metallurgical furnace kiln is turned into the production position, the lower discharging belt of the furnace top is opened, and the materials are dropped into the upper hopper 21, so that the material feeding process is realized smoothly, stably, without scattering and leaking.

[0029] In further preferable embodiments of the utility model, reference Figures 1-5As shown, the upper hopper 21 can be tightly connected with the operation platform through the plane plate 8, and does not need to be welded or fixed by screws, so that the installation, maintenance and repair are very convenient.

[0030] In further preferable embodiments of the present application, as shown in Figures 1-5 As shown, the arc-shaped plate 3 is composed of an upper arc-shaped plate 31 and a lower arc-shaped plate 32, and the curvature of the arc surface is determined by the curvature formed when the furnace tilts, so that the upper arc-shaped plate 31 and the lower arc-shaped plate 32 are tightly connected. Meanwhile, the arc-shaped plate 3 is designed to be relatively wide, so that the material will not fall even if it leaks into the gap, and the sealing effect can be achieved after the material is blocked.

[0031] In further preferable embodiments of the present application, as shown in Figures 1-5 As shown, the upper arc-shaped plate 31 is slightly longer than the lower arc-shaped plate 32, and the two ends are slightly raised upward. This design can avoid the jamming and obstruction between the arc-shaped plates 3 during the tilting of the furnace, and even if there is a small obstruction, the upper hopper 21 can be lifted to make the lower arc-shaped plate 32 smoothly enter the predetermined position, so that the whole upper hopper 21 will not be tilted and affect the tilting of the furnace.

[0032] In further preferable embodiments of the present application, as shown in Figures 1-5 As shown, the rock wool 5 is placed under the pressing plate 4 and pressed to the edge of the rock wool 5. Due to the characteristics of high temperature resistance and elasticity of the rock wool 5, effective isolation and sealing effect can be achieved between the upper arc-shaped plate 31 and the lower arc-shaped plate 32, so as to prevent the material dust from seeping and escaping.

[0033] In further preferable embodiments of the present application, as shown in Figures 1-5 As shown, the hopper 2 is composed of an upper hopper 21 and a lower hopper 22, which are both made of a conical funnel welded by carbon steel, and both have a large opening upward. The size of the lower outlet of the upper hopper 21 is the same as or slightly smaller than the size of the material receiving port of the lower hopper 22. The conical funnel design effectively reduces the adhesion of the material on the hopper 2.

[0034] In further preferable embodiments of the present application, as shown in Figures 1-5 As shown, the plug valve 9 is composed of a front plug valve 91 and a rear plug valve 92, which are both integral purchase parts processed, and the plug is cut into a semicircular hole according to the amount of material added. When installed, the plug valve 9 needs to be inclined downward. This design can adjust the size of the discharge hole according to the amount of material added, so as to effectively reduce the overflow of the furnace slag and dust, reduce air leakage, save energy, and stabilize the furnace condition.

[0035] In further preferable embodiments of the present application, as shown in Figures 1-5As shown, the flange plate 7 is provided with four arc-shaped strip openings for fixing bolts, and the opening width is the same as the bolt hole diameter, so as to be connected with the flange plate 7 reserved on the furnace. However, the utility model is not limited to this, and the arc-shaped strip openings can be more reasonably arranged according to the bolt hole position of the flange plate 7 reserved on the furnace body. The arc-shaped strip opening design can adapt to the flange hole reserved on various furnaces, so as to facilitate the installation process.

[0036] Next, taking the arc-shaped sealing feeding hopper of the tilting metallurgical furnace in the example embodiment as an example, the installation and use process of the arc-shaped sealing feeding hopper are simply introduced. First, an opening with the same size as the upper opening of the upper feeding hopper 21 is needed on the operation platform, and then the upper half composed of the upper feeding hopper 21, the flat plate 8, the upper arc-shaped plate 31, the front plug valve 91 and the rear plug valve 92 is installed into the opening. Then, the lower half composed of the lower feeding hopper 22, the lower arc-shaped plate 32, the pressing plate 4, the rock wool 5, the blocking rod 6 and the flange plate 7 is connected with the flange of the furnace by bolts. In use, the tilting metallurgical furnace is turned into the production position, and the lower feeding belt of the furnace top is opened to drop the material into the upper feeding hopper 21, so as to realize the smooth and stable feeding process without leakage and seepage. By adjusting the size of the lower feeding hole according to the feeding amount, the spouting of slag in the furnace, the overflow of dust, the air leakage, the energy saving and the stable furnace condition can be realized.

[0037] In the example embodiment, preferably, the wide design of the arc-shaped plate 3 reduces the material leakage gap and realizes the sealing effect after filling. At the same time, the pressing plate 4 and the rock wool 5 are arranged on the lower arc-shaped plate 32 to realize the interference fit between the arc-shaped plates 3. The arc-shaped sealing feeding hopper can effectively prevent the leakage and scattering of the dust generated by the material feeding into the furnace, and will not adversely affect the turning in and turning out of the furnace. Preferably, the plug valve 9 is used to adjust the size of the lower feeding hole, which can effectively reduce the spouting of slag in the furnace, the overflow of dust, the air leakage, the energy saving and the stable furnace condition.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A tilting metallurgical furnace arch seal hopper, comprising a main body (1), characterized in that: The main body (1) comprises a hopper (2), the hopper (2) is provided with an arc panel (3), the arc panel (3) comprises a lower arc panel (32), the lower arc panel (32) is provided with rock wool (5) and a pressing sheet (4) for fixing the rock wool (5) to play a sealing role, the hopper (2) comprises an upper hopper (21), the upper hopper (21) is provided with an inserted plate valve (9).

2. A tilting metallurgical furnace arc seal hopper as claimed in claim 1 wherein: The arc panel (3) further comprises an upper arc panel (31), the curvature of the upper arc panel (31) is determined by the curvature formed when the furnace is turned out, the upper arc panel (31) is longer than the lower arc panel (32), and the two ends are upwardly curved.

3. A tilting metallurgical furnace arc seal hopper as defined in claim 1 wherein: The lower arc panel (32) is provided with a stop stick (6), the stop stick (6) is composed of an iron stick with the same length as the turning-in end of the lower arc panel (32), the thickness is higher than the height of the pressing sheet (4) after pressing, and is welded at the edge of the end.

4. A tilting metallurgical furnace arch seal hopper as defined in claim 1 wherein: The upper hopper (21) and the lower hopper (22) are both composed of a conical funnel welded by carbon steel, and both are large mouths upward, wherein the size of the lower outlet of the upper hopper (21) is not greater than the size of the receiving port of the lower hopper (22).

5. A tilting metallurgical furnace arch seal hopper as defined in claim 1 wherein: The inserted plate valve (9) is composed of a front inserted plate valve (91) and a rear inserted plate valve (92), and the inserted plate valve (9) is installed downwardly at the lower part of the upper hopper (21).

6. A tilting metallurgical furnace arch seal hopper as defined in claim 4 wherein: The lower part of the lower hopper (22) is provided with a flange plate (7), the flange plate (7) is provided with four arc strip openings for fixing bolts.

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