Discharging chute device for replacing refractory balls of blast furnace hot blast stove

Abstract

The utility model relates to the technical field of blast furnace smelting equipment, in particular to an unloading chute device for replacing a refractory ball of a blast furnace hot blast stove, and aims to solve the problems that in the process of replacing the refractory ball of the blast furnace at present, time and labor are wasted during unloading and replacement of the refractory ball of the blast furnace due to lack of special replacing and unloading equipment. And the overall efficiency of blast furnace smelting production is finally influenced. The device is mainly composed of a discharging chute, a suspension lifting rope, a striker plate, a discharging funnel, an operation platform and the like, one side of the discharging chute device is obliquely placed under a manhole of the hot blast stove, the other side of the discharging chute device is placed above the discharging funnel, and when the refractory balls of the ball type hot blast stove of the iron-making blast furnace are replaced, the refractory balls are discharged from the manhole; the waste balls fall into the discharging hopper through the chute and are shoveled and conveyed to a waste ball storage yard by a forklift after the discharging hopper is full, rapid and efficient ball discharging is achieved through mechanical operation, the operation labor intensity is effectively reduced, and then the overall efficiency of blast furnace smelting production is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace smelting equipment, in particular to a discharge chute device used for replacing refractory balls in a hot blast furnace of a blast furnace. Background Art

[0002] Blast furnace smelting is a continuous production process. The whole process is completed in the process of 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 the hot air heated to 1000-1300℃ by the hot blast furnace is blown in from 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. Hot air heated to 1000-1300℃ by the hot blast furnace is blown in from the tuyere. The hot air is passed through the combustion of blast furnace gas in the furnace by the hot blast furnace, continuously heating the refractory balls in the furnace, and then sent into the blast furnace after the heat is accumulated. The high temperature generated by the combustion of coke and coal powder in the furnace melts and reduces the iron element to form the final product. After long-term use, the refractory balls in the blast furnace become compacted, affecting the air permeability of the furnace. After a certain period of operation, the refractory balls in the furnace need to be replaced. However, due to the lack of special and effective refractory ball replacement and unloading auxiliary devices, the unloading and replacement of refractory balls in the blast furnace is usually time-consuming and labor-intensive, and ultimately affects the overall production efficiency of blast furnace smelting. Utility Model Content

[0003] The utility model provides a discharge chute device for replacing refractory balls in a blast furnace hot blast stove, so as to solve the problems existing in the above background.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A discharge chute device for replacing refractory balls in a hot blast stove of a blast furnace comprises a working platform, a hot blast stove is arranged on the side of the working platform, a manhole is arranged on the side of the hot blast stove close to the working platform, a ladder is also arranged on the side of the working platform, a discharge chute is arranged close to the manhole and is inclined and movable with respect to the working platform, and a discharge funnel is fixedly arranged at the bottom of the discharge chute.

[0006] Furthermore, a hanging rope is fixedly connected to the side of the hot blast stove, and the hanging rope is also connected to the discharge chute.

[0007] Furthermore, a support seat is fixedly provided on the bottom side of the working platform, and the discharge chute is obliquely arranged on the top of the support seat.

[0008] Furthermore, a material baffle is provided on the inner side of the bottom of the discharge chute.

[0009] The utility model has the following beneficial effects:

[0010] The utility model provides a discharge chute device for replacing refractory balls in a blast furnace hot blast stove, which is mainly composed of a discharge chute, a hanging rope, a baffle plate, a discharge funnel and an operating platform. One side of the discharge chute device is tilted and placed directly below the manhole of the hot blast stove, and the other side is placed above the discharge funnel. When the refractory balls are replaced in the ball-type hot blast stove of the iron-making blast furnace, the refractory balls are discharged from the manhole and fall into the discharge funnel through the chute. After the discharge funnel is full, it is shoveled to the waste ball yard by a forklift. Through mechanized operation, fast and efficient ball unloading is achieved, which effectively reduces the labor intensity of the operation, thereby improving the overall efficiency of the blast furnace smelting production, and solves the problem that in the current process of replacing refractory balls in the blast furnace, the refractory balls in the blast furnace are usually time-consuming and labor-intensive to unload and replace due to the lack of special replacement and unloading equipment, and ultimately affects the overall efficiency of the blast furnace smelting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] The meanings of the reference numerals are as follows:

[0013] 1. Working platform; 2. Discharging chute; 3. Support seat; 4. Suspension rope; 5. Material baffle plate; 6. Discharging funnel; 7. Hot air furnace; 8. Manhole; 9. Ladder. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] like Figure 1 As shown, a discharge chute device for replacing refractory balls in a hot blast stove of a blast furnace comprises a working platform 1, a hot blast stove 7 is arranged on the side of the working platform 1, a manhole 8 is provided on the side of the hot blast stove 7 near the working platform 1, a ladder 9 is also provided on the side of the working platform 1, a discharge chute 2 is arranged near the manhole 8 and is inclined and movable with the working platform 1, and a discharge funnel 6 is fixedly provided at the bottom of the discharge chute 2.

[0016] A hanging rope 4 is fixedly connected to the side of the hot blast furnace 7 , and the hanging rope 4 is also connected to the discharge chute 2 .

[0017] A support seat 3 is fixedly provided on the bottom side of the working platform 1 , and the discharge chute 2 is tiltedly arranged on the top of the support seat 3 .

[0018] A material blocking plate 5 is also provided on the inner side of the bottom of the discharge chute 2 .

[0019] When the utility model is applied in practice, firstly, it is checked that all parts of the device are well installed and welded. Then, when unloading and replacing refractory balls in the blast furnace, one side of the unloading chute 2 is tilted and placed directly below the manhole 8 of the hot blast furnace 7, and the other side of the unloading chute 2 is placed above the unloading funnel 6. When replacing refractory balls in the ball-type hot blast furnace of the iron-making blast furnace, the refractory balls are discharged from the manhole 8 and fall into the unloading funnel 6 through the unloading chute 2. After the unloading funnel 6 is full, it is shoveled to the waste ball yard by a forklift. Furthermore, according to the actual working conditions at the unloading and replacement site, the unloading chute 2 can be adjusted to a time angle matching the on-site operation by pulling the hanging rope 4, and then the refractory balls can be unloaded and replaced. In this way, fast and efficient ball unloading can be achieved through mechanized operation, which effectively reduces the labor intensity of the operation, and thus improves the overall efficiency of blast furnace smelting production. Therefore, the device has good practicality.

Claims

1. A discharge chute device for replacing refractory balls in a hot blast furnace of a blast furnace, comprising a work platform (1), a hot blast furnace (7) is provided on the side of the work platform (1), a manhole (8) is provided on the side of the hot blast furnace (7) close to the work platform (1), and a ladder (9) is also provided on the side of the work platform (1), wherein: A discharge chute (2) is provided near the manhole (8) and is tilted and movable relative to the working platform (1), and a discharge funnel (6) is fixedly provided at the bottom of the discharge chute (2).

2. A discharge chute device for replacing refractory balls in a blast furnace hot blast stove according to claim 1, characterized in that: A hanging rope (4) is fixedly connected to the side of the hot blast furnace (7), and the hanging rope (4) is also connected to the discharge chute (2).

3. A discharge chute device for replacing refractory balls in a blast furnace hot blast stove according to claim 1, characterized in that: A support seat (3) is fixedly provided on the bottom side of the working platform (1), and the discharge chute (2) is tiltedly arranged on the top of the support seat (3).

4. A discharge chute device for replacing refractory balls in a blast furnace hot blast stove according to claim 3, characterized in that: A material blocking plate (5) is also provided on the inner side of the bottom of the discharge chute (2).

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