CN217103955U

CN217103955U - Ou ye stove DRI pipe is repaired and is used high altitude folding platform device

Info

Publication number: CN217103955U
Application number: CN202123378366.7U
Authority: CN
Inventors: 季书民; 肖国栋; 邹庆峰
Original assignee: Xinjiang Bayi Iron and Steel Co Ltd
Current assignee: Xinjiang Bayi Iron and Steel Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-02
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses an Ou smelt stove DRI pipe is repaired and is used high altitude folding platform device, including two semicircular folding platforms, be in the same place through the rotation axis is articulated between the folding platform, all setting up two lug devices in every platform mesa respectively, being located one of them platform bottom surface both sides portion of rotation axis below fixed respectively and setting up a safety limiting plate, a platform outer fringe middle part evagination is setting up a spring bolt, another platform outer fringe middle part correspondingly the evagination is setting up a hasp, the spring bolt cooperatees with the hasp, and link up between the two and setting up the round pin shaft hole, and a locking round pin has been worn to the round pin shaft downthehole cooperation, and the locking round pin is mutually perpendicular with the rotation axis of two semicircular folding platforms. The utility model is suitable for a restoration after the damage of ou smelt stove DRI downcomer refractory material is used, can ensure ou smelt stove DRI downcomer refractory material repair personnel's work safety, very big shortening treatment time and the processing degree of difficulty.

Description

Ou ye stove DRI pipe is repaired and is used high altitude folding platform device

Technical Field

The utility model relates to an Ou smelt stove DRI pipe is repaired and is used high altitude folding platform device.

Background

The Euro metallurgical furnace is the most advanced novel non-blast furnace ironmaking process in the world and comprises a pre-reduction shaft furnace and a gasification furnace, wherein 8 DRI spiral discharging machines are horizontally arranged at the lower part of the pre-reduction shaft furnace along the circumferential direction, and direct reduction sponge iron with high metallization rate is continuously provided for the melting gasification furnace in a thermal state. The discharging sequence of the DRI direct reduction sponge iron of the pre-reduction shaft furnace from top to bottom is as follows: the pre-reduction shaft furnace → the spiral discharging machine consists of a DRI direct reduction sponge iron spiral conveyer → a DRI direct reduction sponge iron blanking refractory pipe → the top of the gasification furnace. Wherein the refractory inside the DRI blanking pipe is easy to break and fall off, which causes the steel shell of the blanking pipe to become red and soft, and when the steel shell is seriously bulged, torn and leaked gas, which causes noise damage and forces damping down and production stop treatment. There is a safety risk of burnthrough, and the connecting tube steel shell red European smelting furnace needs damping down and blowing out for treatment. Therefore, the DRI downcomer needs to be poured and repaired again, the DRI downcomer needs to enter a fixing device for welding and repairing refractory materials in the construction process, and the DRI downcomer is internally provided with an anti-abrasion device and is of an irregular structure.

Disclosure of Invention

The utility model aims at providing an Ou smelt stove DRI pipe is repaired and is used high altitude folding platform device is applicable to the restoration use after the damage of Ou smelt stove DRI downcomer refractory material, can ensure Ou smelt stove DRI downcomer refractory material repair personnel's work safety, very big shortening treatment time and the processing degree of difficulty.

The utility model discloses a technical scheme be, an otou smelt stove DRI pipe is repaired and is used high altitude folding platform device, including two semicircular folding platforms, be in the same place through the rotation axis is articulated between the folding platform, all setting up two lug devices in every platform mesa respectively, be located one of them platform bottom surface both sides portion of rotation axis below fixed respectively and setting up a safety limiting plate, a platform outer fringe middle part evagination is setting up a spring bolt, another platform outer fringe middle part correspondingly the evagination is setting up a hasp, the spring bolt cooperatees with the hasp, and link up between the two and set up the round pin shaft hole, a locking round pin has been worn to the round pin shaft downthehole cooperation, and the locking round pin is mutually perpendicular with the rotation axis of two semicircular folding platforms.

When the DRI downcomer of the Europe smelting furnace needs to be repaired, the safety platform device is folded and placed into the manhole through the inner part of the irregular structure of the DRI downcomer, and personnel enter along the walking ladder and stand on the bottom plate to support and repair the arch top refractory. The utility model discloses safe and reliable, the bearing is more than 500 kilograms, can bear the weight of one person completely, and lug and lifting rope and annex have all been done intensity and load and have calculated, and wherein the equipment of lifting by crane of lifting rope all has the anti-falling function. The safe folding platform device can reduce the production cost, shorten the overhaul time and reduce the workload, and has a remarkable improvement effect on the labor of on-site repair personnel. After the device is implemented, the aim of quickly and safely repairing the fallen refractory material of the DRI downcomer of the Ou smelting furnace is fulfilled, and the safe production of the Ou smelting furnace is maintained.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of the expanded structure of the present invention;

fig. 2 is a schematic view of the present invention in a folded state;

fig. 3 is a side view of the present invention folded;

fig. 4 is a working position diagram of the present invention.

Detailed Description

The utility model provides an Ou smelt stove DRI pipe is repaired and is used high altitude folding platform device, as shown in figure 1, 2, 3, 4, includes two semicircular folding platform 1, 2, is in the same place articulated through rotation axis 3 between folding platform 1, 2, all is setting up two lug devices 5 in every platform mesa respectively, lug device 5 constitute by a horizontal axis of horizontal in the rectangle recess, lug device setting is in the platform mesa to this kind of structure, and is not outstanding outside, does benefit to the folding of two platforms. And two safety limit plates 4 are respectively fixedly arranged on two sides of the bottom surface of one of the platforms below the rotating shaft 3, and when one of the platforms is unfolded, the safety limit plates 4 play a role in supporting and positioning the platform. A spring bolt 6 is arranged in the middle of the outer edge of one platform 1 in a protruding mode, the side face of the spring bolt 6 is L-shaped, a lock catch 7 is correspondingly arranged in the middle of the outer edge of the other platform 2 in a protruding mode, the lock catch 7 is formed by a long strip-shaped groove, the spring bolt 6 is matched with the lock catch 7, a pin shaft hole is arranged between the spring bolt 6 and the lock catch 7 in a penetrating mode, a locking pin 8 is arranged in the pin shaft hole in a matched mode, and the locking pin 8 is perpendicular to the rotating shafts 3 of the two semicircular foldable platforms. A pull rope 9 is connected to the locking pin 8, when the platform is hung at an overhead working position in the DRI pipe 10, the locking pin 8 is pulled out through the pull rope 9, and then the foldable platforms 1 and 2 can be unfolded and tiled to be flat and round, so that the repairing operation of workers is facilitated.

Claims

1. The utility model provides an Ou smelt stove DRI pipe is repaired and is used high altitude folding platform device, includes two semicircular foldable platforms, is in the same place characterized by through the rotation axis is articulated between the foldable platform: two lifting lug devices are arranged in each platform surface respectively, a safety limiting plate is fixedly arranged on two sides of one platform bottom surface below the rotating shaft respectively, a lock tongue is arranged in the middle of one platform outer edge in a protruding mode, a lock catch is arranged in the middle of the other platform outer edge in a corresponding protruding mode, the lock tongue is matched with the lock catch, a pin shaft hole is formed in the middle of the lock tongue and the lock catch in a penetrating mode, a locking pin is arranged in the pin shaft hole in a penetrating mode in a matching mode, and the locking pin is perpendicular to the rotating shaft of the two semicircular foldable platforms.