CN101913528B

CN101913528B - Special lifting appliance for lifting coke oven flue elbow

Info

Publication number: CN101913528B
Application number: CN2010102612998A
Authority: CN
Inventors: 张晓宁; 吴钢; 张伟山; 陈进中
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2010-08-23
Filing date: 2010-08-23
Publication date: 2012-06-13
Anticipated expiration: 2030-08-23
Also published as: CN101913528A

Abstract

The invention relates to a special lifting appliance for lifting a coke oven flue elbow. The special lifting appliance mainly comprises fixed supporting plates (3), rotary clamping hooks (4) and a tightening device, wherein two sides of the tightening device are respectively provided with a fixed supporting plate (3) connected with fixed clamping grooves (8) of the tightening device; each fixed supporting plate is provided with a lifting hole (1) and a pin hole (9); and the rotary clamping hooks (4) are sleeved and connected through the pin holes. The invention better solves the problem of low working efficiency in the mounting process of the lifting coke oven flue elbow and is suitable for mounting the traditional various types of coke oven flue elbows.

Description

The special hanger of hoisting flue bent pipe of coke oven

Technical field

The present invention relates to the lifting field, particularly relate to a kind of special hanger of hoisting flue bent pipe of coke oven.

Background technology

The coke oven for iron flue bent pipe is the indispensable equipment of each Formed Coke Furnace, and the coke oven flue elbow of different model basically all is the cast iron bend pipe that the top is provided with sealing flange and heavy socket except that caliber size is different.Because equipment single-piece weight is about 300-450kg, out-of-shape does not have suitable lifting point, and the cluster lifting fixing means of taking is more loaded down with trivial details again.The purpose that reaches adjustment installation and control face necessarily requires the flange surface maintenance level suitable for reading of this bend pipe in the equipment installation process, for need be adjusted through the method that changes the suspension centre center of gravity when lifting.It is more that this equipment is installed quantity in the coke oven design, and we are seeking always in the installation, use which kind of method and accessory appliances can improve the purpose that erection work efficient reaches quickness and high efficiency.

Summary of the invention

Technical matters to be solved by this invention is: a kind of special hanger of hoisting flue bent pipe of coke oven is provided, and this special hanger practicality is stronger, can bring into play quick fixed hoisting coke oven flue elbow and help in its installation process the adjustment to the installation and control face.

The technical scheme that the present invention solves its technical matters employing is: mainly be made up of fixed support plate, rotation folder hook and stretching device.Wherein, in the both sides of stretching device, respectively be provided with a continuous fixed support plate of fixed card slot with it; Each fixed support plate is provided with a hole for hoist and a pin-and-hole, rotates the folder hook and interlocks with it through this pin-and-hole.

Special hanger provided by the invention has following beneficial effect:

It is fast convenient when this special hanger is installed the adjustment coke oven flue elbow; Just improved 60% than the direct hoisting method work efficiency on the link of fixed hoisting that is fastened that bundlees of steel rope commonly used is installed, and can satisfy the requirement of coke oven flue elbow needs control adjustment in installation process;

This special hanger is to adopt lever principle; And the structure and shape characteristics of combination flue bent pipe; Take to press from both sides the configuration design of the form of hook, thus wider for the contour size of the unit(s) applicability, be applicable at present existing each model coke oven flue elbow equipment lifting erection work;

This special hanger selects for use steel plate commonly used and round steel material to make, and cost of manufacture is low and simple in structure.

Description of drawings

Fig. 1 is a structural representation provided by the invention.

Fig. 2 is the structural representation of stretching device among Fig. 1.

Fig. 3 is the A-A cutaway view of Fig. 2.

Fig. 4 is a fixed support plate 3 and the scheme drawing that is connected that rotates folder hook 4 among Fig. 1.

Fig. 5 is the right elevation of Fig. 4.

Fig. 6 is the back view of Fig. 4.

Fig. 7 is the structural representation of fixed support plate 3 among Fig. 1.

Fig. 8 is the left view of Fig. 7.

Fig. 9 is the structural representation that rotates folder hook 4 among Fig. 1.

Figure 10 is a running condition scheme drawing of the present invention.

Among the figure: 1. hole for hoist; 2. latch; 3. fixed support plate; 4. rotate the folder hook; 5. steel plate; 6. strut; 7. spend blue bolt; 8. draw-in groove; 8-1. notch; 9. pin-and-hole; 10. coke oven flue elbow; 11. hook; 12. manual lifting gear; 13. suspension hook; 14. long steel rope.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing the present invention is further described.

The special hanger of hoisting flue bent pipe of coke oven provided by the invention, its structure is as shown in Figure 1: mainly be made up of fixed support plate 3, rotation folder hook 4 and stretching device.

Said fixed support plate 3 has two, and its structure such as Fig. 1, Fig. 7 and shown in Figure 8: this fixed support plate is processed by steel plate, which is provided with a hole for hoist 1 and a pin-and-hole 9; Steel plate thickness is 16mm, and hole for hoist 1 diameter is φ 30mm, and these technical parameters also can be decided according to actual conditions.And weld a block plate 5 in this fixed support plate bottom and form T-shaped with fixed support plate, this steel plate 5 is of a size of 70 * 30mm, and this size also can be decided according to actual conditions.

The structure of said rotation folder hook 4 such as Fig. 1, Fig. 5 and shown in Figure 9: by the folder hook and with it the latch 2 that is weldingly connected of top form.The folder hook be a kind of by thickness be the steel plate of 16mm to be made into radius bend be 45 ° folder hook for the 40mm angle, these technical parameters also can be decided according to actual conditions.Latch 2 is processed by round steel, and its length is longer slightly than folder hook upper width, and its diameter is littler than pin-and-hole 9, if the diameter of pin-and-hole 9 is φ 20mm, then the diameter of latch 2 is φ 16mm, can guarantee like this can rotate freely after this latch penetrates pin-and-hole 9.

The annexation of above-mentioned rotation folder hook 4 and fixed support plate 3 such as Fig. 1, Fig. 4, Fig. 5 and shown in Figure 6.

The structure of said stretching device such as Fig. 1, Fig. 2 and shown in Figure 3 are by strut 6, spend blue bolt 7 and draw-in groove 8 to form.Wherein: strut 6 has two, and they are positioned at the both sides of spending blue bolt 7, and their end is provided with the draw-in groove 8 that is weldingly connected with it, and their other end links to each other with spending blue bolt 7 respectively.Draw-in groove 8 is that the steel plate of 16mm is processed by thickness, and its notch 8-1 is used to block fixed support plate 3, and this steel plate thickness also can be decided according to actual conditions.Spend blue bolt 7 can adopt M20 to spend blue bolt.The parts of this stretching device combine by actual bend pipe caliber size.

Above-mentioned stretching device is as shown in Figure 1 with the relation that two fixed support plates 3 link to each other.

The special hanger of hoisting flue bent pipe of coke oven provided by the invention (abbreviation suspender), its working process is:

1. install and fix suspender:

Two suspenders are arranged symmetrically in the top of coke oven flue elbow 10 (hereinafter to be referred as bend pipe); To rotate the flange bottom that folder hook 4 hooks bend pipe earlier; The rotational fixation stay bearing plate 3 again, and fixed support plate 3 vertically is close to this elbow internal wall, and require to be symmetricly set on the axis that the round mouth center, upper and lower with bend pipe coincides; And with the stretching device two fixed support plate stretchings are located, prevent suspender to be come off because of rotational fixation stay bearing plate 3 deflects;

Then; Fixed orifice 1 on the end that will restrict with a strap near the fixed support plate 3 of said bend pipe center of gravity direction and the fixed support plate 3 is through unloading buckle, and the end hook 11 of the manual lifting gear 12 of the other end of this steel rope and lifting traction usefulness (like chain block etc.) is connected; Link to each other with the suspension hook 13 of lifting appliance (crane) with the end hook of another root strap lifting gear 12 (like chain block etc.); Through unloading buckle, the other end of this steel rope is connected to suspension hook 13 places of lifting appliance (crane) with the fixed orifice 1 of an end of a long steel rope 14 and another fixed support plate 3.

Notice that manual lifting gear 12 will be fixed on the fixed support plate near the equipment center of gravity, just so that the bend pipe center of gravity is adjusted to perfect condition, through arranging that so just in time being pooled to any after this moment, two suspension centres were put on steel rope is suspension hook 13 places.

2. lifting:

During lifting appliance (crane) lifting, progressively adjust manual lifting gear 12 and make the steel rope of secure both ends reach state of equilibrium.Under two that the act on fixed support plate 3 tops relative effects of tractive force obliquely, this suspender clamps bend pipe automatically and catches on bend pipe flange bottom.

3. control adjustment:

Flue bent pipe can realize that the center of gravity state of the equipment of adjusting satisfies installation requirements through adjusting manual lifting gear 12 as required in hoisting process.

Claims

1. the special hanger of hoisting flue bent pipe of coke oven is characterized in that mainly being made up of fixed support plate (3), rotation folder hook (4) and stretching device, wherein: in the both sides of stretching device, respectively be provided with a continuous fixed support plate (3) of fixed card slot (8) with it; Each fixed support plate (3) is provided with a hole for hoist (1) and a pin-and-hole (9), rotates folder hook (4) and be a kind ofly to be made into the folder hook that bending is 45 ° of angles by steel plate, and this rotations is pressed from both sides hook and interlocked through said pin-and-hole; Described stretching device by strut (6), spend blue bolt (7) and draw-in groove (8) to form; Wherein: strut (6) has two, and they are positioned at the both sides of spending blue bolt (7), and; Their end links to each other with spending blue bolt (7) respectively, and their other end is equipped with the draw-in groove (8) that is weldingly connected with it; This stretching device blocks fixed support plate (3) through the notch of draw-in groove (8).

2. special hanger according to claim 1 is characterized in that described fixed support plate (3) processed by steel plate, is welded with a block plate (5) in its underpart, and this steel plate and fixed support plate form T-shaped.

3. special hanger according to claim 1 is characterized in that described rotation folder hook (4) is made up of the latch (2) that folder hook and top with it are weldingly connected, and wherein: latch (2) is processed by round steel, and its length is longer slightly than pressing from both sides the hook upper width.

4. special hanger according to claim 3 is characterized in that forming the trepanning connection with it described rotation folder hook (4) penetrates the pin-and-hole (9) of fixed support plate (3) through latch (2) after.