阅读说明：本技术 一种大型熔炼炉扒渣系统 (Slag removing system of large smelting furnace ) 是由 佘桂春 成安华 汪思奇 胡启朋 程勇 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种大型熔炼炉扒渣系统,其包括出渣坑、大型熔炼炉、浇包和天车,所述出渣坑设置于所述大型熔炼炉的铁水出口下方,所述大型熔炼炉表面的浮渣由人工扒送至出渣坑,所述出渣坑旁设置有扒渣平台,所述扒渣平台包括设置于出渣坑外侧的固定平台、与固定平台铰接的旋转平台和用于驱动旋转平台展开或收拢的旋转驱动装置；当需要扒除大型熔炼炉表面的浮渣时,旋转平台展开且位于出渣坑上方；当大型熔炼炉表面的浮渣被人工扒除后,旋转平台收拢且位于出渣坑外侧。本发明不仅结构简单,而且能够在不干涉浇包对接熔炼完成后铁水的前提下消除了工人清除铁水表面浮渣存在吊入出渣坑的安全隐患。(The invention discloses a slag removing system of a large smelting furnace, which comprises a slag outlet pit, the large smelting furnace, a ladle and a crown block, wherein the slag outlet pit is arranged below a molten iron outlet of the large smelting furnace, floating slag on the surface of the large smelting furnace is manually removed to the slag outlet pit, a slag removing platform is arranged beside the slag outlet pit and comprises a fixed platform arranged outside the slag outlet pit, a rotary platform hinged with the fixed platform and a rotary driving device for driving the rotary platform to unfold or fold; when scum on the surface of the large smelting furnace needs to be removed, the rotary platform is unfolded and positioned above the slag discharging pit; when the scum on the surface of the large smelting furnace is manually removed, the rotary platform is folded and positioned outside the slag discharging pit. The invention has simple structure, and can eliminate the potential safety hazard that workers lift the scum on the surface of the molten iron into the slag outlet pit on the premise of not interfering the molten iron after the ladle butt smelting is finished.)

1. The utility model provides a large-scale smelting furnace takes off sediment system, includes a slag outlet pit (1), large-scale smelting furnace (2), ladle and overhead traveling crane, slag outlet pit (1) set up in molten iron export (2.1) below of large-scale smelting furnace (2), the dross on large-scale smelting furnace (2) surface is taken off by the manual work and is sent to the hole of slagging tap (1), its characterized in that: a slag skimming platform (3) is arranged beside the slag outlet pit (1), and the slag skimming platform (3) comprises a fixed platform (3.1) arranged at the outer side of the slag outlet pit (1), a rotating platform (3.2) hinged with the fixed platform (3.1) and a rotary driving device (3.3) for driving the rotating platform (3.2) to unfold or fold; when the scum on the surface of the large smelting furnace (2) needs to be removed, the rotary platform (3.2) is unfolded and positioned above the scum outlet pit (1); when the floating slag on the surface of the large smelting furnace (2) is manually removed, the rotary platform (3.2) is folded and positioned outside the slag outlet pit (1).

2. The slagging-off system of a large-scale smelting furnace according to claim 1, characterized in that: the fixed platform (3.1) is arranged outside the slag outlet pit (1) along the axial direction of the molten iron outlet (2.1), and a guardrail is arranged on the fixed platform (3.1).

3. The slagging-off system of a large-scale smelting furnace according to claim 1, characterized in that: the rotary platform (3.2) and the fixed platform (3.1) are arranged in a mutually perpendicular mode, and a hinge shaft between the rotary platform (3.2) and the fixed platform (3.1) is arranged along the axis direction of the molten iron outlet (2.1).

4. The slagging-off system of a large-scale smelting furnace according to claim 3, characterized in that: the rotary platform (3.2) is provided with a guardrail, and a roller (3.2-1) which is used for facilitating slag removal is sleeved on the guardrail facing one side of the molten iron outlet (2.1).

5. The slagging-off system of a large-scale smelting furnace according to claim 1, characterized in that: the rotary driving device (3.3) is an oil cylinder arranged between the rotary platform (3.2) and the fixed platform (3.1), one end of the oil cylinder is hinged with the rotary platform (3.2), and the other end of the oil cylinder is hinged with the fixed platform (3.1).

6. The slagging-off system of a large-scale smelting furnace according to claim 1, characterized in that: a slag-off protection mechanism (4) for preventing the rotary platform (3.2) from rotating when unfolded is arranged between the rotary platform (3.2) and the fixed platform (3.1).

7. The slagging-off system of a large-scale smelting furnace according to claim 6, characterized in that: the slag-off protection mechanism (4) comprises a movable bolt (4.1) fixedly connected with the fixed platform (3.1) and an anti-rotation slot (4.2) fixedly connected with the rotating platform (3.2) and used for being matched with the movable bolt (4.1).

8. The slagging-off system of a large-scale smelting furnace according to claim 7, characterized in that: the fixed platform (3.1) is provided with a driving oil cylinder (3.1-1) for driving the movable bolt (4.1) and a guide sleeve (3.1-2) for limiting and guiding the movable bolt (4.1).

9. The slagging-off system of a large-scale smelting furnace according to claim 1, characterized in that: the large smelting furnace (2) is over 5 tons.

10. The slagging-off system of a large-scale smelting furnace according to claim 1, characterized in that: the height of the slag skimming platform (3) is greater than that of the large smelting furnace (2).

Technical Field

The invention discloses a slag raking system, belongs to the technical field of casting equipment, and particularly discloses a slag raking system for a large smelting furnace.

Technical Field

A large-scale smelting furnace (melting furnace of more than 5 tons) is an indispensable equipment in the field of metallurgical casting, and is an equipment capable of melting metal ingots and some waste metals, adding necessary alloy components, and smelting the metal ingots and some waste metals into required molten metal through operations of slagging-off, refining and the like. In the prior art, when a large smelting furnace is used for smelting molten iron, scum in the furnace body floats on the surface of the molten iron in the remelting process, and if the scum is not removed, the molten iron with the scum is directly poured into a ladle, so that the slag content of the smelted molten metal is high, a large amount of gas is transferred into the smelted molten iron, and castings are scrapped in serious cases.

In order to solve the technical problem, the slag floating on the molten iron is generally manually removed by workers in a factory, the workers take a crown block hung with a hanging basket to the side of a large-scale smelting furnace, floating slag floating on the surface of the molten iron in the large-scale smelting furnace is removed to a slag discharging pit by using auxiliary tools such as a manual slag removing rod, the hanging basket is hung on the crown block through a crown block lifting hook, the hanging basket is shaken by the workers in the slag removing process, and the hanging basket can be overturned to enable the workers to fall into the slag discharging pit and be scalded by the iron slag, so that great potential safety hazards exist in the existing slag removing operation.

Disclosure of Invention

The invention aims to overcome the defects in the technical background and provide a slagging-off system of a large smelting furnace, which has a simple structure and can eliminate the potential safety hazard that floating slag on the surface of molten iron falls into a slag pit when workers remove the floating slag on the surface of the molten iron on the premise of not interfering molten iron after ladle butt-joint smelting is finished.

The invention discloses a slag removing system of a large smelting furnace, which comprises a slag outlet pit, the large smelting furnace, a ladle and a crown block, wherein the slag outlet pit is arranged below a molten iron outlet of the large smelting furnace, floating slag on the surface of the large smelting furnace is manually removed to the slag outlet pit, a slag removing platform is arranged beside the slag outlet pit and comprises a fixed platform arranged outside the slag outlet pit, a rotary platform hinged with the fixed platform and a rotary driving device for driving the rotary platform to unfold or fold; when scum on the surface of the large smelting furnace needs to be removed, the rotary platform is unfolded and positioned above the slag discharging pit; when the scum on the surface of the large smelting furnace is manually removed, the rotary platform is folded and positioned outside the slag discharging pit.

In a preferred embodiment of the present invention, the fixed platform is disposed outside the slag tapping pit along an axial direction of the molten iron outlet, and a guardrail is disposed on the fixed platform.

In a preferred embodiment of the present invention, the rotary platform and the fixed platform are arranged perpendicular to each other, and a hinge shaft between the rotary platform and the fixed platform is arranged along an axial direction of the molten iron outlet.

In a preferred embodiment of the invention, the rotary platform is provided with a guardrail, and a roller for facilitating slag removal is sleeved on the guardrail facing to the molten iron outlet.

In a preferred embodiment of the present invention, the rotation driving device is an oil cylinder disposed between the rotating platform and the fixed platform, and one end of the oil cylinder is hinged to the rotating platform, and the other end of the oil cylinder is hinged to the fixed platform.

In a preferred embodiment of the invention, a slag-off protection mechanism for preventing the rotary platform from rotating when being unfolded is arranged between the rotary platform and the fixed platform.

In a preferred embodiment of the present invention, the slag-off protection mechanism includes a movable bolt fixedly connected to the fixed platform and an anti-rotation slot fixedly connected to the rotating platform and used for cooperating with the movable bolt.

In a preferred embodiment of the present invention, a driving cylinder for driving the moving bolt and a guide sleeve for limiting and guiding the moving bolt are disposed on the fixed platform.

In a preferred embodiment of the invention, the large smelting furnace is more than 5 tons.

In a preferred embodiment of the invention, the height of the slagging platform is greater than the height of the large smelting furnace.

The beneficial technical effects of the invention patent are as follows: the slag removing platform is simple in structure and convenient to use, and can rotate by 90 degrees by being arranged beside the slag discharging pit, and when floating slag on the surface of a large smelting furnace needs to be removed, the slag removing platform is unfolded and stably positioned above the slag discharging pit; when the floating slag on the surface of the large smelting furnace is manually removed, the slag removing platform is folded and positioned outside the slag discharging pit, so that the interference of the platform on a casting ladle when the casting ladle is moved by a crown block to a molten iron outlet above the slag discharging pit and molten iron is connected is avoided, the platform is stable, and workers can safely remove the floating slag on the surface of the molten iron in the large smelting furnace on the platform; furthermore, in order to ensure the stability of the rotary platform when the slag skimming platform is unfolded and prevent the rotary platform from rotating when the rotary driving device fails, a set of bolt type slag skimming protection mechanism is added on the slag skimming platform, when the rotary platform is unfolded, a worker stands on the rotary platform to generate overturning moment on a hinge shaft, and the overturning moment is simultaneously borne by the rotary driving device and the slag skimming protection mechanism, so that the worker is absolutely safe even if the rotary driving device fails and cannot fall into a slag hole.

Drawings

FIG. 1 is a schematic view of a slagging-off system of a large smelting furnace according to the present invention (the rotary platform is folded);

FIG. 2 is a schematic view of a slagging-off system of a large smelting furnace according to the present invention (with the rotary platform in an extended state);

FIG. 3 is a front view (the rotary platform is folded) of the slagging-off system of the large smelting furnace of the present invention;

FIG. 4 is a top view of a slagging-off system of a large smelting furnace according to the present invention (with the rotary platform in an extended state);

FIG. 5 is a schematic view of a slag-raking protection mechanism in the slag-raking system of the large smelting furnace of the present invention;

in the figure: 1-slag outlet pit, 2-large smelting furnace, 3-slag removing platform, 4-slag removing protection mechanism, 2.1-molten iron outlet, 3.1-fixed platform, 3.2-rotary platform, 3.3-rotary driving device, 3.1-1-driving oil cylinder, 3.1-2-guide sleeve, 3.2-1-roller, 4.1-movable bolt and 4.2-anti-rotation slot.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention discloses a slag removing system of a large smelting furnace, which comprises a slag outlet pit 1, a large smelting furnace 2, a ladle and a crown block, wherein after the smelting is finished, the crown block can transfer the ladle to a molten iron outlet 2.1 of the large smelting furnace 2 to be connected with molten iron, the slag outlet pit 1 is arranged below the molten iron outlet 2.1 of the large smelting furnace 2, floating slag on the surface of the large smelting furnace 2 is manually removed to the slag outlet pit 1, a slag removing platform 3 is arranged beside the slag outlet pit 1, the slag removing platform 3 comprises a fixed platform 3.1 arranged at the outer side of the slag outlet pit 1, a rotary platform 3.2 hinged with the fixed platform 3.1 and a rotary driving device 3.3 for driving the rotary platform 3.2 to unfold or fold; when the scum on the surface of the large smelting furnace 2 needs to be removed, the rotary platform 3.2 is unfolded and positioned above the scum outlet pit 1; when the floating slag on the surface of the large smelting furnace 2 is manually removed, the rotary platform 3.2 is folded and positioned outside the slag outlet pit 1.

Preferably, the fixed platform 3.1 is arranged outside the slag outlet pit 1 along the axial direction of the molten iron outlet 2.1, and a guardrail is arranged on the fixed platform 3.1.

Preferably, the rotating platform 3.2 and the fixed platform 3.1 are arranged perpendicular to each other, and a hinge shaft between the rotating platform 3.2 and the fixed platform 3.1 is arranged along the axial direction of the molten iron outlet 2.1.

Preferably, the rotary platform 3.2 is provided with a guardrail, and the guardrail on one side facing the molten iron outlet 2.1 is sleeved with a roller 3.2-1 for facilitating slag removal.

Preferably, the rotation driving device 3.3 is an oil cylinder arranged between the rotating platform 3.2 and the fixed platform 3.1, one end of the oil cylinder is hinged with the rotating platform 3.2, and the other end of the oil cylinder is hinged with the fixed platform 3.1.

Preferably, a slag-off protection mechanism 4 for preventing the rotary platform 3.2 from rotating when being unfolded is arranged between the rotary platform 3.2 and the fixed platform 3.1.

Preferably, the slag-off protection mechanism 4 comprises a movable bolt 4.1 fixedly connected to the fixed platform 3.1 and an anti-rotation slot 4.2 fixedly connected to the rotating platform 3.2 and used for being matched with the movable bolt 4.1.

Preferably, a driving oil cylinder 3.1-1 for driving the movable bolt 4.1 and a guide sleeve 3.1-2 for limiting and guiding the movable bolt 4.1 are arranged on the fixed platform 3.1.

Preferably, the large smelting furnace 2 exceeds 5 tons.

Preferably, the height of the slagging platform 3 is greater than the height of the large smelting furnace 2.

The invention is based on the improvement of the existing equipment in the factory, so the positions of the slag outlet pit 1, the large-scale smelting furnace 2, the casting ladle and the crown block in the factory can be kept as the original shape, and only one set of slag removing platform 3 is required to be added in the slag outlet pit 1. The rotary platform 3.2 of the slag platform 3 is unfolded or folded based on the condition that the casting ladle of the crown block is not interfered.

It should be understood that the above are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention disclosed herein should be covered within the scope of the present invention.