CN217324145U

CN217324145U - Special tool for replacing mud gun mud beating mechanism in limited space

Info

Publication number: CN217324145U
Application number: CN202220823803.7U
Authority: CN
Inventors: 陈天一
Original assignee: Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Current assignee: Gansu Jiu Steel Group Hongxing Iron and Steel Co Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-08-30
Anticipated expiration: 2032-04-11

Abstract

The utility model belongs to the technical field of metallurgical machinery overhaul of the equipments technique, a specialized tool that limitation space mud gun beat mud mechanism was changed is disclosed to solve the problem that exists among the prior art change mud gun beat mud mechanism, this specialized tool includes the compensating beam, is equipped with the lug on the compensating beam, and rings are all equipped with to the bottom both sides of compensating beam, can dismantle on the rings of one side and be equipped with the counter weight, can dismantle on the rings of opposite side and be equipped with mud gun beat mud mechanism. The utility model discloses a specialized tool changes mud gun and beats mud mechanism compares with present use method, and to a great extent has reduced the operation number (by 9 people reduce for 5 people), has reduced operation personnel's intensity of labour, has improved efficiency. Adopt the utility model discloses can effectually guarantee operation personnel's safety, can prevent that the lug from opening to weld and droing, chain block rupture suddenly, unhook mud gun mechanism of beating mud from rushing out and causing personnel's injury and equipment accident, also got rid of the overhead traveling crane and pulled askew potential safety hazard that drags the operation existence to one side.

Description

Special tool for replacing mud gun mud beating mechanism in limited space

Technical Field

The utility model relates to a metallurgical machinery equipment overhauls technical field, concretely relates to specialized tool that limit space mud gun mechanism of beating was changed.

Background

The mud beating device for the No. 3-6 blast furnace mud gun in the wine and steel iron works is an important device for blast furnace tapping, and in the daily production process, if the mud beating mechanism of the mud gun cannot work normally, the plugging of a tapping hole of the blast furnace in the smelting process can be not tight, so that the blast furnace cannot be produced normally. The installation position of the mud gun mud beating mechanism is taken as an example of a 4# blast furnace, at the position of 45 degrees of the southeast angle of a furnace body, the operation of a railway station overhead traveling crane is in east and west directions, when the mud gun mud beating mechanism is replaced, the overhead traveling crane cannot travel to the vertical position of the mud gun mud beating mechanism replacement, the overhead traveling crane is always in oblique pulling and oblique pulling operation during replacement operation, the steel wire rope of the overhead traveling crane is separated from a groove during each replacement, the steel wire rope separated from the groove is required to be recovered after the replacement operation is finished, great potential safety hazard and labor intensity are brought to the construction process, most of the mud gun mud beating mechanisms for replacing the overhead traveling crane are performed under temporary wind damping of the blast furnace, the time requirement is as short as 90 minutes and needs to be completed, 9 persons are required to be simultaneously matched for operation, 5 stations (3 t1 stations, 2t1 stations and 1t3 stations) are used for matching operation, the mud gun mud beating mechanism replacement and the steel wire rope and the shifting caused by oblique pulling and oblique pulling of the overhead traveling crane occur in former replacement operation, the dangerous accident that the operators are injured is caused.

In the process of overhauling an actuating mechanism for beating the mud of a wine steel 3-6# blast furnace mud gun, the earliest method 1 is adopted: (4 # blast furnace as an example) after tapping of the blast furnace is finished, watering and cooling the tapping runner in the tapping runner below the tapping hole, and cooling the tapping runner (about 1000 ℃); and laying a steel plate on the iron runner to replace the mud gun mud beating actuating mechanism. The defects that the temperature of the iron runner is too high, the temperature cannot be thoroughly reduced by short-term watering, and the sight line is influenced by overlarge steam, so that an operator can work on a laid steel plate in the replacement process of the mud gun mud beating mechanism, the operator cannot work for a long time when the temperature of the steel plate is too high, and the danger that the operator steps into the iron runner when stepping on the air in the operation process exists. The method 2 is used: (4 # blast furnace as an example) utilizing a crown block of a blast furnace casting house, an annular hoisting beam of an air port platform to weld lifting lugs, and welding lifting lugs on a column of a blast furnace frame, connecting the two lifting lugs by steel wire ropes in a shackle manner, hanging 1 3t of chain blocks, using the 3t of chain blocks to pull a tail part bundle lock of a replaced old mud gun mechanism, simultaneously moving the crown block of the casting house to the east end of the casting house of the 4# blast furnace, descending a hook of the crown block to slowly lift the mud gun mechanism by using the steel wire ropes, dismantling a hydraulic oil pipe and a crown block fixing bolt which are used for fixing the mud gun mechanism, simultaneously matching the 3t of chain blocks with the chain blocks, lifting and returning the chain blocks, repeatedly matching operation until the mud gun mechanism is perpendicular to the east end of the casting house, removing the chain blocks, lifting the mud gun mechanism to the middle part of the crown block, and then performing the returning operation; the method comprises the steps of hoisting spare parts to the maximum running position of a west crown block, dragging the spare parts right behind a mud gun by using a 2t chain block, slowly hooking the crown block, dragging a 3t chain block at the tail of the mud gun above the crown block in an inclined mode after the spare parts arrive at a proper position, performing crown block matching operation, obliquely dragging the crown block (each time a steel wire rope is out of a groove during replacement operation) until the operation is finished, and having great potential safety hazards. The whole operation process is influenced by narrow operation environment, the operators are relatively dense, the crown block is always obliquely pulled and obliquely dragged, the 2t and 3t chain blocks forcibly force the mud gun mud beating mechanism to the opposite direction of the crown block in the operation process, if any one hanging point is welded or the chain block is unhooked and broken, the consequence is unreasonable, the operation environment temperature is close to more than 60 ℃, the summer construction is close to 70 ℃, and the labor intensity of workers is also very high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem existing in the mud gun mud beating mechanism of the prior art, and providing a specialized tool for replacing the confined space mud gun mud beating mechanism with simple structure and convenient operation.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a specialized tool that limit space mud gun mechanism of beating mud changed, includes the compensating beam, is equipped with the lug on the compensating beam, and rings are all equipped with to the bottom both sides of compensating beam, can dismantle on the rings of one side and be equipped with the counter weight, can dismantle on the rings of opposite side and be equipped with mud gun mechanism of beating mud.

Furthermore, shackles are arranged on the two lifting rings, the two shackles are connected with steel wire rope buckles, one steel wire rope buckle is connected with the balance weight, and the other steel wire rope buckle is connected with the mud gun mud beating mechanism.

Furthermore, a hoisting steel wire rope is arranged on the lifting lug and is connected with a crown block in a casting house.

Further, the shackle was a 5t shackle.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses a specialized tool changes mud gun and beats mud mechanism compares with present use method, and to a great extent has reduced the operation number (by 9 people reduce for 5 people), has reduced operation personnel's intensity of labour, has improved efficiency.

The utility model can effectively ensure the safety of the operators, and can prevent the lifting lugs from falling off during welding, the chain block from breaking suddenly, and the mud beating mechanism of the unhooking mud gun from being washed out to cause personnel injury and equipment accidents; the potential safety hazard of the inclined pulling operation of the overhead travelling crane is also eliminated.

The operation time for replacing the mud gun mud beating mechanism can be greatly shortened, and the operation time of the operating personnel in a high-temperature area is shortened.

The utility model discloses simple structure, low cost, processing is convenient, easy operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The reference numerals have the following meanings: 1. a balance beam; 2. balancing weight; 3. lifting lugs; 4. a steel wire rope buckle; 5. a casting house crown block; 6. a mud beating mechanism of the mud gun; 7. shackle dismounting; 8. a hoisting ring; 9. and hoisting the steel wire rope.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in figure 1, the special tool for replacing the confined space mud gun mud beating mechanism comprises a balance beam 1, wherein a lifting lug 3 is arranged on the balance beam 1, a lifting steel wire rope 9 is arranged on the lifting lug 3, and the lifting steel wire rope 9 is connected with a casting house crown block 5.

The two sides of the bottom of the balance beam 1 are provided with hanging rings 8, the two hanging rings 8 are provided with shackles 7, and the shackles 7 are 5t shackles. The two shackles 7 are connected with steel wire rope buckles 4, one steel wire rope buckle 4 is connected with the balance weight 2, and the other steel wire rope buckle 4 is connected with the mud gun mud beating mechanism 6.

The specific operation is as follows:

1. the balance beam 1 is lifted to the middle of the casting house by the overhead travelling crane.

2. The crown block hoists the balance weight 2 to the balance weight end of the balance beam 1 and is connected with the balance beam through a steel wire rope buckle 4.

3. The crown block hoists the mud gun mud beating mechanism 6 to be replaced to the other end of the balance beam 1 and is locked by the steel wire rope buckle 4.

4. The balance beam 1 is horizontally and slowly hoisted by a hoisting crown block, and the crown block runs to a replacement operation area.

5. The mud gun mud beating mechanism 6 that will go on the line is hoisted to the mud gun mud beating mechanism next door that needs to go off the line, and the overhead traveling crane return hook compensating beam slowly falls to mud gun mud beating mechanism 6 and counter weight 2 and falls to the ground, and the wire rope of the mud gun mud beating mechanism 6 that removes to go on the line is tied up the wire rope and is locked on the mud gun mud beating mechanism that goes off the line, dismantles hydraulic pressure oil pipe and fixed lug bolt, and the overhead traveling crane slowly rises to rise to the steady handling of mud gun mud beating mechanism that will go off the line to the middle part of the cast house, demolishs the mud gun wire rope that goes off the line.

6. The balance beam is lifted to the middle of a casting house by the aid of big and small hooks of a crown block in a matching mode, the balance beam 1 is lifted by the big hook, the balance weight 2 is lifted by the small hook, the crown block runs to a replacement operation area, the mud gun mud beating mechanism on line is bound and locked by a steel wire rope, the small hook of the crown block is removed, the crown block is slowly lifted to the replacement position of the mud gun mud beating mechanism, adjustment and positioning are carried out, lug bolts are fastened and fixed, a hydraulic oil pipe is recovered, meanwhile, the balance weight is lifted by the small hook of the crown block in a hanging mode, the balance beam is lifted to the middle of a casting house to be placed in position, the support cushion is unhooked after being stabilized, and lifting operation is finished.

7. And recovering the dismantled safety facilities, cleaning the tools, taking a trial run, adjusting the angle of the mud gun mud beating mechanism, finishing the operation after all the operation reaches the standard, counting the number of the operation people and withdrawing.

Claims

1. The utility model provides a specialized tool that confined space clay gun mechanism of beating was changed, characterized by: the mud gun mud beating mechanism comprises a balance beam (1), wherein lifting lugs (3) are arranged on the balance beam (1), lifting rings (8) are arranged on two sides of the bottom of the balance beam (1), a balance weight (2) is detachably arranged on the lifting ring (8) on one side, and a mud gun mud beating mechanism (6) is detachably arranged on the lifting ring (8) on the other side.

2. The special tool for replacing the confined space mud gun mud beating mechanism according to claim 1, which is characterized in that: two rings (8) are provided with shackles (7), the two shackles (7) are connected with steel wire rope buckles (4), one steel wire rope buckle (4) is connected with the balance weight (2), and the other steel wire rope buckle (4) is connected with a mud gun mud beating mechanism (6).

3. The special tool for replacing the confined space mud gun mud striking mechanism as claimed in claim 1, which is characterized in that: lifting steel wire ropes (9) are arranged on the lifting lugs (3), and the lifting steel wire ropes (9) are connected with the casting house overhead travelling crane (5).

4. The special tool for replacing the confined space mud gun mud striking mechanism as claimed in claim 2, which is characterized in that: the shackle (7) is a 5t shackle.