Furnace eye burning-through device for submerged arc furnace

Abstract

The utility model discloses a furnace eye burning-through device for a submerged arc furnace, which belongs to the technical field of blow-in and comprises a bottom plate, two support rods are fixedly connected to the upper end of the bottom plate, a burning-through mechanism is fixedly connected to the upper ends of the two support rods and the upper end of the bottom plate, and a guide pipe is fixedly connected to the upper portion of the burning-through mechanism. By means of the burning-through mechanism, in the smelting process of the submerged arc furnace, an iron outlet can be burnt through through an electric arc, production of iron alloy is achieved, the guide pipe is matched with the pushing assembly, a carbon rod can be pushed forwards to the position of a furnace eye, it can be effectively guaranteed that the carbon rod slides along the guide pipe, and the breakage probability of the carbon rod is reduced; and when the carbon rod is in contact with the furnace eye, the collision force can be buffered, the action of the collision force when the carbon rod is in contact with the furnace eye can be reduced, the stability of the carbon rod is ensured, the function of protecting the carbon rod can be realized, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a furnace opening technology field more specifically, relate to a furnace eye burn -out device for electric arc furnace. BACKGROUND

[0002] Electric arc furnace is also called resistance furnace. It is mainly used for reducing smelting ore, carbonaceous reducing agent and solvent raw materials. Mainly produce ferrosilicon, manganese iron, chromium iron, tungsten iron, silicon manganese alloy and other ferroalloy, is important industrial raw materials in metallurgical industry and chemical raw materials such as calcium carbide. The load of electric arc furnace transformer is continuous and stable, the impedance voltage is low, the number of voltage regulating stages is more, and the stage difference is small. The overload capacity is strong. In the process of smelting ore of electric arc furnace, burn -out device is needed to use arc to burn out the iron mouth, and realize the production of ferroalloy. The electric arc furnace burn -out device is usually connected with the burn -out bus by graphite or carbon electrode, and the iron mouth is burned out by arc, to achieve the purpose of smelting.

[0003] However, the stability of the carbon rod cannot be guaranteed during the use of the existing burn -out device, and the carbon rod is prone to breakage during burn -out.

[0004] Therefore, aiming at the above problems, a furnace eye burn -out device for electric arc furnace is provided. UTILITY MODEL CONTENT

[0005] 1. Technical problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a furnace eye burn -out device for electric arc furnace, which can realize the function of protecting the carbon rod.

[0007] 2. Technical scheme

[0008] In order to solve the above problems, the utility model adopts the following technical scheme.

[0009] A furnace eye burn -out device for electric arc furnace, including bottom plate, the bottom plate upper end is fixedly connected with two support rods, two support rods upper end and bottom plate upper end are fixedly connected with burn -out machine, the upper part of burn -out mechanism is fixedly connected with guide pipe.

[0010] Further, the burn -out mechanism includes a support plate, the lower end of the support plate is fixedly connected with the upper end of the two support rods, the rear end of the support plate is fixedly connected with a vertical plate, the lower end of the vertical plate is fixedly connected with the upper end of the bottom plate, the rear end of the vertical plate is fixedly connected with a support frame, the upper end of the support frame is fixedly connected with a propulsion assembly, the outer portion of the propulsion assembly is fixedly connected with a burn -out assembly, and the inner portion of the propulsion assembly is fixedly connected with two buffer assemblies.

[0011] Further, the advancing assembly comprises a cylinder, the lower end of the cylinder is fixedly connected with the upper end of the support frame, the front end of the cylinder is fixedly connected with a positioning plate, the lower end of the positioning plate is fixedly connected with the upper end of the vertical plate, the output end of the cylinder is fixedly connected with a gas rod, the front end of the positioning plate is fixedly connected with two guide rods, the front ends of the two guide rods are fixedly connected with another positioning plate, and the front ends of the two positioning plates are both provided with positioning holes.

[0012] Further, the burning-through assembly comprises a moving plate, the front end of the moving plate is provided with two guide holes, the inner surfaces of the two guide holes are respectively in sliding connection with the outer surfaces of the two guide rods, the rear end of the moving plate is provided with a connecting hole, the inner surface of the connecting hole is fixedly connected with the outer surface of the gas rod, the upper end of the moving plate is fixedly connected with an electricity receiving box, the upper end of the moving plate is fixedly connected with a positioning buckle, the outer surface of the positioning buckle is in sliding connection with the inner surface of the guide pipe, and the inner surface of the positioning buckle is fixedly connected with a carbon rod.

[0013] Further, the buffer assembly comprises a hollow pipe, the inner cavity of the hollow pipe is provided with a spring, the front end of the spring is fixedly connected with a sliding piece, the outer surface of the sliding piece is in sliding connection with the inner cavity of the hollow pipe, the front end of the sliding piece is fixedly connected with a connecting rod, and the front end of the connecting rod is fixedly connected with a silica gel pad.

[0014] Further, the outer surfaces of the two hollow pipes are respectively fixedly connected with the inner surfaces of the two positioning holes.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The burning-through mechanism can burn through the iron mouth in the smelting process of the electric arc furnace, realizes the production of ferroalloy, the carbon rod can be pushed to the furnace eye position by the guide pipe and the advancing assembly, the sliding of the carbon rod along the guide pipe is effectively ensured, the probability of carbon rod breakage is reduced, the impact force can be buffered when the carbon rod contacts the furnace eye by the buffer assembly, the impact force when the carbon rod contacts the furnace eye is reduced, the stability of the carbon rod is ensured, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a burning-through mechanism schematic view of the utility model;

[0020] Figure 3 It is an advancing assembly schematic view of the utility model;

[0021] Figure 4The schematic diagram of the burning-through assembly of the utility model;

[0022] Figure 5 The schematic diagram of the buffering assembly of the utility model.

[0023] Mark explanation in the drawing:

[0024] 1, bottom plate; 2, support rod; 3, burning-through mechanism; 31, support plate; 32, vertical plate; 33, support frame; 34, advancing assembly; 341, air cylinder; 342, air rod; 343, positioning plate; 344, positioning hole; 345, guide rod; 35, burning-through assembly; 351, moving plate; 352, guide hole; 353, connecting hole; 354, electricity connection box; 355, positioning buckle; 356, carbon rod; 36, buffering assembly; 361, hollow pipe; 362, spring; 363, sliding sheet; 364, connecting rod; 365, silica gel pad; 4, guide pipe. Specific implementation

[0025] 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, not all the embodiments; Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] In the description of the utility model, it should be pointed out that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; It can be mechanical connection, or electrical connection; It can be directly connected, or indirectly connected through an intermediate medium; It can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] Please refer to Figures 1-5The utility model provides a furnace eye burning through device for ore heating furnace, including bottom plate 1, two support rods 2 are fixedly connected to the upper end of bottom plate 1, and the upper end of two support rods 2 and the upper end of bottom plate 1 are fixedly connected with burning through mechanism, and the upper part of burning through mechanism 3 is fixedly connected with guide pipe 4.

[0030] The utility model discloses a furnace eye burning through device for ore heating furnace, including bottom plate 1, two support rods 2 are fixedly connected to the upper end of bottom plate 1, and the upper end of two support rods 2 and the upper end of bottom plate 1 are fixedly connected with burning through mechanism, and the upper part of burning through mechanism 3 is fixedly connected with guide pipe 4.

[0031] Please refer to Figures 2-5 Burning through mechanism 3 includes support plate 31, and the lower end of support plate 31 is fixedly connected with the upper end of two support rods 2, the rear end of support plate 31 is fixedly connected with vertical plate 32, the lower end of vertical plate 32 is fixedly connected with the upper end of bottom plate 1, the rear end of vertical plate 32 is fixedly connected with support frame 33, the upper end of support frame 33 is fixedly connected with propelling assembly 34, propelling assembly 34 is fixedly connected with burning through assembly 35 outside, and two buffer assemblies 36 are fixedly connected in propelling assembly 34.

[0032] Propelling assembly 34 includes cylinder 341, and the lower end of cylinder 341 is fixedly connected with the upper end of support frame 33, the front end of cylinder 341 is fixedly connected with locating plate 343, the lower end of locating plate 343 is fixedly connected with the upper end of vertical plate 32, and the output end of cylinder 341 is fixedly connected with air rod 342, the front end of locating plate 343 is fixedly connected with two guide rods 345, two locating plates 343 are fixedly connected with each other in the front end, and the front end of two locating plates 343 is provided with locating hole 344.

[0033] Burning through assembly 35 includes moving plate 351, and the front end of moving plate 351 is provided with two guide holes 352, the inner surface of two guide holes 352 is slidably connected with the outer surface of two guide rods 345 respectively, the rear end of moving plate 351 is provided with connecting hole 353, the inner surface of connecting hole 353 is fixedly connected with the outer surface of air rod 342, the upper end of moving plate 351 is fixedly connected with power connection box 354, the upper end of moving plate 351 is fixedly connected with locating buckle 355, the outer surface of locating buckle 355 is slidably connected with the inner surface of guide pipe 4, the inner surface of locating buckle 355 is fixedly connected with carbon rod 356, and the outer surface of carbon rod 356 is slidably connected with the inner surface of guide pipe 4.

[0034] The buffer assembly 36 comprises two hollow tubes 361, the outer surfaces of the two hollow tubes 361 are fixedly connected with the inner surfaces of the two positioning holes 344 respectively, the inner cavities of the hollow tubes 361 are provided with springs 362, the front ends of the springs 362 are fixedly connected with sliding sheets 363, the outer surfaces of the sliding sheets 363 are slidably connected with the inner cavities of the hollow tubes 361, the front ends of the sliding sheets 363 are fixedly connected with connecting rods 364, and the front ends of the connecting rods 364 are fixedly connected with silica gel pads 365.

[0035] The present scheme is started by the cylinder 341, so that the air rod 342 can be elongated under the action of the cylinder 341, because the inner surface of the connecting hole 353 is fixedly connected with the outer surface of the air rod 342, so when the air rod 342 is elongated, the moving plate 351 will be moved forward along the outer surface of the two guide rods 345, at this time, the positioning buckle 355 will move together with the moving plate 351, so as to push the carbon rod 356 out of the inner surface of the guide pipe 4, when the carbon rod 356 moves together with the moving plate 351 to be close to the contact with the furnace eye, the moving plate 351 first contacts the silica gel pad 365, and the silica gel pad 365 can push the sliding sheet 363 to slide along the inner surface of the hollow tube 361 through the connecting rod 364, so as to extrude the spring 362, the buffer effect of the spring 362 is utilized to reduce the impact force when the carbon rod 356 contacts with the furnace eye, so as to ensure that the carbon rod 356 is stable and can avoid the carbon rod 356 from being broken under stress, when the carbon rod 356 contacts with the furnace eye, the action of the cylinder 341 is stopped, and the carbon rod 356 is connected with the power supply by the power connection box 354, the electric arc is used to burn through the iron notch, and the furnace eye is completed.

[0036] It should be noted that the specific installation method of the cylinder 341, the carbon rod 356 and the power connection box 354, the connection mode of the circuit, the connection mode of the oil circuit and the control method all belong to conventional design, and the present application does not make detailed description.

[0037] Working principle: in the process of smelting metal in the electric furnace, the device needs to be used to burn through the furnace eye, start the air cylinder 341, let the air rod 342 can be under the action of air cylinder 341 and extend forward, when the air rod 342 extends, it will take along the moving plate 351 and move forward along the outer surface of the two guide rods 345, at this time the positioning buckle 355 will move along with the moving plate 351, thereby pushing the carbon rod 356 out of the inner surface of the guide pipe 4, when the carbon rod 356 moves with the moving plate 351 to contact with the furnace eye, the moving plate 351 first contacts with the silica gel pad 365, and the silica gel pad 365 can push the sliding sheet 363 to slide along the inner surface of the hollow pipe 361 through the connecting rod 364, which can extrude the spring 362, the buffer effect of the spring 362 is used to reduce the impact force when the carbon rod 356 contacts with the furnace eye, which can ensure the stability of the carbon rod 356 and avoid the fracture of the carbon rod 356, when the carbon rod 356 contacts with the furnace eye, stop the action of the air cylinder 341, and use the power box 354 to apply external power to the carbon rod 356, use the electric arc to burn through the iron notch, complete the burning through.

[0038] The above is only the preferred specific implementation of the present application; but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the improvement concept of the present application, should be covered in the protection scope of the present application.

Claims

1. A burner hole burning device for a submerged arc furnace, comprising a base plate (1), characterized in that: Two support rods (2) are fixedly connected to the upper end of the bottom plate (1), and a burning-through mechanism (3) is fixedly connected to the upper end of the two support rods (2) and the upper end of the bottom plate (1).

2. A burner hole clogging device for a submerged arc furnace according to claim 1, characterized in that: The burning-through mechanism (3) comprises a support plate (31), the lower end of the support plate (31) is fixedly connected to the upper end of the two support rods (2), a vertical plate (32) is fixedly connected to the rear end of the support plate (31), the lower end of the vertical plate (32) is fixedly connected to the upper end of the bottom plate (1), a support frame (33) is fixedly connected to the rear end of the vertical plate (32), a propelling assembly (34) is fixedly connected to the upper end of the support frame (33), a burning-through assembly (35) is fixedly connected to the outside of the propelling assembly (34), and two buffer assemblies (36) are fixedly connected to the inside of the propelling assembly (34).

3. A burner hole clogging device for a submerged arc furnace according to claim 2, characterized in that: The propelling assembly (34) comprises a pneumatic cylinder (341), the lower end of the pneumatic cylinder (341) is fixedly connected to the upper end of the support frame (33), a positioning plate (343) is fixedly connected to the front end of the pneumatic cylinder (341), the lower end of the positioning plate (343) is fixedly connected to the upper end of the vertical plate (32), a pneumatic rod (342) is fixedly connected to the output end of the pneumatic cylinder (341), two guide rods (345) are fixedly connected to the front end of the positioning plate (343), and another positioning plate (343) is fixedly connected to the front end of the two guide rods (345).

4. A burner hole clogging device for a submerged arc furnace according to claim 3, characterized in that: The burning-through assembly (35) comprises a moving plate (351), two guide holes (352) are formed in the front end of the moving plate (351), the inner surfaces of the two guide holes (352) are in sliding connection with the outer surfaces of the two guide rods (345) respectively, a connecting hole (353) is formed in the rear end of the moving plate (351), the inner surface of the connecting hole (353) is fixedly connected with the outer surface of the pneumatic rod (342), an electricity receiving box (354) is fixedly connected to the upper end of the moving plate (351), a positioning buckle (355) is fixedly connected to the upper end of the moving plate (351), the outer surface of the positioning buckle (355) is in sliding connection with the inner surface of the guide pipe (4), a carbon rod (356) is fixedly connected to the inner surface of the positioning buckle (355), and the outer surface of the carbon rod (356) is in sliding connection with the inner surface of the guide pipe (4).

5. A burner hole clogging device for a submerged arc furnace according to claim 3, characterized in that: The buffer assembly (36) comprises a hollow tube (361), a spring (362) is arranged in the inner cavity of the hollow tube (361), a sliding sheet (363) is fixedly connected to the front end of the spring (362), the outer surface of the sliding sheet (363) is in sliding connection with the inner cavity of the hollow tube (361), a connecting rod (364) is fixedly connected to the front end of the sliding sheet (363), and a silica gel pad (365) is fixedly connected to the front end of the connecting rod (364).

6. A burner hole clogging device for a submerged arc furnace according to claim 5, characterized in that: The outer surfaces of the two hollow tubes (361) are fixedly connected with the inner surfaces of the two positioning holes (344) respectively.

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