CN107489163B - method for mounting ring bolt of metallurgical industrial furnace body - Google Patents

Abstract

the invention discloses a method for installing ring bolts of a metallurgical industrial furnace body, and belongs to the field of civil engineering cooperation of metallurgical engineering equipment installation. Aiming at the problems of complex equipment installation, poor precision and labor hour consumption in the prior art, the invention provides a method for installing an annular bolt of a furnace body in the metallurgical industry, which comprises the following steps: A. manufacturing and dividing a bolt system, namely dividing all bolts into a plurality of symmetrical systems; each system comprises a plurality of bolts and fixed anchor plates; B. fixing weldments in the foundation concrete cushion layer by using a support frame below the embedded bolt system, and pouring and embedding the weldments on the upper surface of the cushion layer; C. the bolt support frames are respectively positioned along the circumference, the top elevation of the bolt support frames is adjusted, and the bolt support frames are welded on each embedded part on the circumference of the cushion layer bolt system; D. the bolt systems are sequentially arranged on the support frame, and the top mark height fine adjustment and the verticality fine adjustment of the foundation bolts of each system are carried out; E. the welding installation is an integral annular bolt system; F. concrete pouring of a bolt system; G. and (6) checking and accepting. The device is simple to install, high in precision and high in efficiency.

Description

method for mounting ring bolt of metallurgical industrial furnace body

Technical Field

The invention relates to the field of civil engineering cooperation for metallurgical engineering equipment installation, in particular to a method for installing an annular bolt of a metallurgical industrial furnace body.

Background

Industrial furnaces are thermal devices that heat materials or workpieces by using heat generated by burning fuel or converting electric energy in industrial production. For example, a large-sized ring-shaped heating furnace is widely used in the field of metallurgical industrial furnaces, the ring-shaped heating furnace is a continuous heating furnace in which blanks are heated while moving on the bottom of a ring-shaped rotary furnace, when the ring-shaped metallurgical industrial furnace is remanufactured, an annular external structure needs to be manufactured first, during manufacturing, a large-sized bolt needs to be used for constructing an annular shape, and the construction mode and the construction quality are very critical in relation to the quality of the ring-shaped furnace body at the later stage.

At present, a plurality of methods which are frequently adopted in domestic similar bolt construction are that each bolt support is fixed, and then all supports are tied, and the method has low efficiency for mounting nearly hundreds of bolts, is easily influenced by a steel bar mounting system, and is easily disturbed when concrete is poured. Secondly, processing the bolt mould at professional steel construction factory, the preparation is accomplished still to organize professional acceptance mould, arrives on-the-spot installation positioning die again, and fixed mould, wherein the center location of mould bolt processing hole just is more troublesome, also needs fix a position when installing the bolt at last, and the whole control of construction still needs to be done to the mould fixed bolster, still needs to demolish the mould after accomplishing the construction at last, and is more time-consuming.

Corresponding improvement of efficiency improvement is also carried out in the prior art, for example, in chinese patent application, application No. 200810047383.2, published 2008, 9 and 10, a method for quickly installing an annular device foundation bolt is disclosed. The method for quickly installing the foundation bolt of the annular equipment is characterized by comprising the following steps of: 1) preparing a bolt positioning card; 2) fixing an arc-shaped steel plate at a position of the top of the fixing frame, which is required to be provided with the bolt, and putting the fixing frame into the casting mold and fixing; 3) inserting the bolt positioning card into the nut, wherein the nut is positioned in the nut groove, the adjacent four edges of the nut are respectively contacted with the bolt positioning card, and the bolt positioning card is moved to ensure that two second positioning scale lines which are vertical to each other on the bolt positioning card are superposed with two first positioning scale lines which are vertical to each other on the arc-shaped steel plate, so that the nut is aligned, namely the bolt is aligned; 4) aligning all the bolts in sequence according to the step 3); then pouring concrete into the pouring mould to form the foundation concrete. The invention has the characteristics of high installation speed and high installation precision. But it is in essence to bolt installation and location carry out the setting of earlier stage, and is inefficient, and control and location are difficult, and the precision still promotes inadequately.

disclosure of Invention

1. Technical problem to be solved

the invention provides a method for mounting an annular bolt of a furnace body in metallurgical industry, aiming at the problems of complex mounting, poor precision and labor hour consumption of the existing bolt system in the prior art. The device is simple to install, high in precision and high in efficiency.

2. technical scheme

the purpose of the invention is realized by the following technical scheme.

a method for installing an annular bolt of a metallurgical industrial furnace body comprises the following steps:

A. Manufacturing and dividing a bolt system, namely dividing all bolts into a plurality of block systems; each system comprises a plurality of bolts, an upper whole block bolt fixing anchor plate and a lower whole block bolt fixing anchor plate, and the bolt anchor plates are processed into two arc plates capable of fixing all the bolts of the system;

B. installing embedded parts of a lower support frame of a bolt system and pouring a foundation concrete cushion layer; fixing weldments of a support frame below the embedded bolt system in the foundation concrete cushion layer, and flatly pouring and embedding the weldments on the upper surface of the cushion layer;

C. Manufacturing a bolt support frame, positioning, adjusting elevation and welding and fixing; the bolt support frames are respectively positioned along the circumference, the top elevation of the bolt support frames is adjusted, and the bolt support frames are firmly welded on each embedded part on the circumference of the cushion bolt system;

D. Positioning a plurality of bolt systems in place in times, and adjusting the top elevation and the perpendicularity of the foundation bolts;

E. Accurately positioning the bolt system in sequence finally, and installing the bolt system into an integral annular bolt system;

F. pouring the foundation concrete of the bolt equipment;

G. the system can be handed over and accepted by all parties such as equipment installation and the like.

furthermore, in the step A, the bolt anchor plate is a lower fixed ring plate, a plurality of bolts of each system are connected together in an annular mode through the lower fixed ring plate for connection and fixation, the lower fixed ring plate is an arc plate, and a hole matched with the diameter of each bolt is formed in the middle of the lower fixed ring plate.

Furthermore, the bolt anchor plate also comprises an upper fixed ring plate, the middle upper part of the bolt is provided with the upper fixed ring plate with the same structure as the lower fixed ring plate, and all bolts in the system are connected into a whole through the two arc plates for processing. The stability is better.

furthermore, the top of the bolt is provided with a groove. The installation location of bolt is convenient for.

furthermore, the lower fixed ring plate and the upper fixed ring plate are processed in a block butt joint mode; the front side is formed by welding the front side groove once through the notch arranged between the arc panels, then the back side is welded after back chipping to form a back side welding spot, and finally the front side is welded once to finish secondary welding. The welding quality is good, and the precision is high.

Furthermore, in the step A, the bolt, the upper fixing ring plate and the lower fixing ring plate are pre-assembled after being processed, and the steps are as follows:

1) Arranging a pre-assembly platform;

2) Drawing two vertical control axes and the diameter of the ring plate on the pre-assembly platform, arranging a measuring platform with the same height as the bolt at the annular center position, and sequentially placing the lower fixed ring plates on the platform according to the number of the designed middle blocks according to the diameter of the arc plate; secondly, according to the arrangement positions of the bolts in the design drawing, preliminarily mounting all the bolts in place in sequence; finally, spot welding the upper fixing ring plate in place;

3) adjusting the installation radius of each bolt one by taking the measuring platform as a circle center, fixing a lower fixing ring plate by the bolts, detecting two bolts on the diameter position, fixing an upper fixing ring plate by the bolts with the distance error within the standard, and forming a spot welding part;

4) And after the pre-assembly is finished, marking sequence characters on each bolt system.

Furthermore, an embedded part is required to be placed at the position of the stud support frame upright post before the step B. And pouring a concrete cushion layer, firmly embedding the embedded parts in the concrete, and ensuring the support of the support frame through welding connection, so that the bottom is firmer and the system stability is good.

Furthermore, the support frame in the step C comprises a strip-shaped support frame cross beam horizontally arranged at the top, support frame upright columns vertically arranged on the left side and the right side, the support frame cross beam is fixed at the top ends of the support frame upright columns, 2 scissors are adopted to support and tie the support frame upright columns to form support frame supports, and angle steel is adopted to cross and tie the inside and the outside of each support frame to form an inner tie rod and an outer tie rod. The support frame is reasonable in structure and good in stability.

Furthermore, the measuring platform is provided with two layers, the height of the measuring platform is respectively the elevation position of the top of the supporting frame and the elevation position of the top of the bolt, and the measuring platform adopts a steel bar as a fixing frame. The measuring platform is stable, and after the support frame is measured, the bolt measurement is carried out, so that the measuring platform is not influenced mutually, and is convenient and reliable.

Furthermore, after the bolt system is in place, the height of the bolt top is retested and adjusted by using a central point arranged on the measuring platform, the retesting is consistent according to a pre-assembly method, and if deviation exists, the elevation is finely adjusted by adopting a steel plate with corresponding thickness on a cross beam of the support frame until the requirement of control precision is met.

3. advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) The scheme is suitable for installing the foundation bolts of the circular equipment, the bolt system of a system is divided into a plurality of parts in advance, all bolts and the upper and lower anchor plates of each part are processed into a whole in a workshop according to the shape of a ring, the efficiency can be greatly improved, the installation precision is high, and the installation advantages of hundreds of bolts can be better embodied;

(2) The processing integrity can better ensure the installation standardization of the bolts, and the original large bolt fixing work is changed into several times of installation and in-place fixation, so that the installation is more convenient, the consumed time is less, and the efficiency is high;

(3) the conventional field operation of a large number of personnel is changed into mechanical installation, so that the construction mechanization degree is improved, the construction progress is accelerated, the construction quality is stably improved, and the construction cost is reduced;

(4) a pre-assembly mode is adopted in construction, partial modular installation is directly carried out in a workshop, the production efficiency is high, and mechanical operation can be realized;

(5) Before pouring of foundation cushion concrete, placing an embedded part at the position of a bolt support frame upright column according to design requirements, arranging a pair of penetrating steel bars at the center of the embedded part, positioning the embedded part and preventing deviation generated during pouring of the cushion concrete; the stability is good, and the safety is good;

(6) a measuring platform is arranged during installation, so that when the bolt support frames are installed, arc lines for installing bolts are projected to the cross beams of each group of support frames by using the central points; after the bolts are installed, detecting whether the radius error of each group of bolts is within a control range by using the central point; the mounting precision is ensured;

(7) each section of bolt system is supported by a support frame, so that the stability of the bolt system during installation is ensured, the strength is good, and the stability is high;

(8) According to the construction method, bolt precision control is divided into two stages: the bolt system is controlled in a processing workshop and on-site construction, multi-site and multi-operation combination is carried out, and the installation precision of the bolt system is comprehensively controlled. The construction method is simple and convenient, and is easy to control and adjust. On the whole, work load reduces, and bolt accuracy control is good, and stability is good, practices thrift cost and material.

drawings

FIG. 1 is a schematic view of the overall structure of the bolt system of the present invention; schematic diagram of embedded part of bolt fixing frame

FIG. 2 is a schematic top view of a bolt ring plate of one system;

FIG. 3 is a top side view of a bolt ring plate of one system;

FIG. 4 is a schematic view of the supporting frame;

FIG. 5 is a schematic view of a system of tie-down between adjacent struts;

FIG. 6 is a schematic view of a cut-out state of the arc plate;

fig. 7 is a schematic diagram of a state after groove welding of the arc plate.

the reference numbers in the figures illustrate:

1. A bolt; 101. threading a bolt; 102. a spot-welded portion; 2. a bolt bracket; 3. a measuring platform; 4. an upper stationary ring plate; 401. a circular arc plate; 402. cutting; 403. welding spots on the front surface; 404. welding spots on the back surface; 5. a lower stationary ring plate; 6. root stiffening plates; 7. a channel steel bracket; 8. a concrete base; 9. a support frame; 901. a support frame beam; 902. a support frame upright post; 903. a support frame fixing rod; 904. an inner tie rod; 905. and an outer tie rod.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples.

Example 1

as shown in figures 1, 2 and 3, the method of the scheme is a technology for processing the large-diameter bolts which are annularly arranged into a plurality of whole bodies for block processing through the upper and lower anchor plates of the bolts, and utilizing the upper and lower ring plates for connection, the whole stability is good, and the mounting process is completed by using the bottom support frame of the anchor plates of the bolts. The scheme is suitable for the construction of large-diameter and high-precision embedded bolt installation on the foundations such as a blast furnace foundation, a hot blast furnace foundation, a desulfurizing tower foundation, a dry quenching furnace and the like in metallurgical engineering.

According to the invention, n bolts are divided into a plurality of parts, as shown in figures 2 and 3, each part is connected together in a ring shape through the upper fixing ring plate 4 and the lower fixing ring plate 5, the stability of the foundation bolt 1 with a large diameter can be improved due to the dead weight of the foundation bolt, the mass of a single bolt is usually up to 200kg, so that a fixed frame is not required to be arranged independently, as shown in figures 4 and 5, only a supporting frame is arranged below a bolt anchor plate system to form a channel steel bracket 7, and the fixing material of the bolt system is saved.

The bolt installation construction process flow of the invention is as follows:

A, manufacturing and dividing a bolt system, and processing and pre-assembling the bolt system;

According to a design drawing, the furnace body foundation comprises a plurality of large-diameter bolts, and the root of each bolt is necessarily provided with an anchor plate. According to these two points, can divide into a plurality of pieces with all bolts that act on same furnace body jointly, can set for the piece of different quantity according to the demand to construction, can divide into 4 if this embodiment, the bolt anchor board in every piece is processed into an 1/4 monoblock circular arc board, for lower retaining ring board 5, more preferred, in the bolt well upper portion, apart from bolt top 500 ~ 1000mm department, can increase a circular arc board equally, for upper retaining ring board 4, connect into a whole through these two circular arc boards with all bolts in this piece and process.

if the design of the large-diameter anchor bolt used in the hot blast stove is as follows: the 60M 110 bolts act on a hot blast stove body, and the mutual relationship of the bolts is that the bolts are uniformly distributed in a round shape with the diameter of 5.585 meters, so the bolts can be uniformly divided into 4 blocks, and each block is 15 bolts. When the bolt is processed, the anchor plate with the root part of 15 bolts and the length and the width of 300mm in each block is processed into the arc plate with the width of 300mm, the arc plate with the width of 300mm is additionally arranged at the upper part, and all the bolts in each block are connected into a whole through the two arc plates for processing.

preferably, in the design of the bolt, a groove is formed in the center of the top of each bolt 1, so that the installation and the positioning are facilitated. The upper part of the bolt 1 is provided with a bolt mantle fiber 101, which is convenient for the connection with other parts in the later period.

welding processing between the upper fixed ring plate 4, the lower fixed ring plate 5 and the bolt 1 is finished by a workshop, the upper fixed ring plate 4 and the lower fixed ring plate 5 are cut by numerical control, cutting is accurate, and grooves are cut by semi-automatic cutting; the upper fixed ring plate 4 and the lower fixed ring plate 5 are in block butt joint, a single-side groove and a back side are adopted, the quality requirement of a welding line reaches two levels, as shown in figure 6, a notch 402 is arranged between arc panels 401, the size of the notch is 55 degrees +/-5 degrees, in order to reduce welding shrinkage deformation, a local reverse deformation method shown in figure 7 is adopted for splicing, the front side is provided with the single-side groove for welding once to form a front side welding point 403, then the back side is subjected to back chipping and then welding to form a back side welding point 404, and finally the front side is fully welded to finish secondary welding. The welding quality is good, and the precision is high.

after the bolt 1, the upper fixing ring plate 4 and the lower fixing ring plate 5 are processed, pre-assembly needs to be carried out in a workshop, and the method comprises the following steps:

1. The method comprises the following steps that a pre-assembled platform is arranged, the flatness of the pre-assembled platform is controlled to be within 2mm, a bolt 1, an upper fixing ring plate 4 and a lower fixing ring plate 5 are transported by a traveling crane, the bolt is required to be taken and placed lightly during transportation, the collision with the platform is strictly forbidden, and irrelevant personnel strictly forbid getting on and off the platform;

2. Drawing two vertical control axes and the diameter of the ring plate on the platform, arranging a measuring platform 3 with the same height as the bolt 1 at the annular center position, and sequentially placing the lower fixed ring plates 5 on the platform according to the number of the designed middle blocks according to the diameter of the arc plate; secondly, according to the arrangement positions of the bolts 1 in the design drawing, all the bolts are sequentially and preliminarily installed in place; finally, spot welding the upper fixing ring plate 4 in place;

3. The installation radius of each bolt 1 is adjusted one by taking the measuring platform 3 as the circle center, the error is within 2mm, the bolt 1 fixes the lower fixed ring plate 5, and preferably, a root stiffening plate 6 can be added, so that the stability of the bolt is better; two bolts at the diameter position are detected, and the fixed ring plate 4 can be fixed on the bolts within the distance error of 2mm to form the spot welding part 102.

4. after the pre-assembly is completed, sequence characters need to be marked on each bolt system, so that the arrangement sequence of the pre-assembly can be accurately carried out and errors can be reduced when the bolts are hoisted on site.

b, pouring a pre-buried steel plate and a foundation concrete cushion layer at the bolt installation position;

before pouring of foundation cushion concrete, embedded parts are placed at the positions of the upright columns 902 of the bolt support frame according to design requirements, and the sizes of the embedded parts can be determined according to the dead weight of the whole bolt system and the bearing capacity of soil under a cushion. According to the embodiment, the size of the embedded part on the cushion layer in the installation process of the large-diameter foundation bolt of the engineering hot blast stove is calculated as follows: the total weight of the whole bolt system and the supporting and reinforcing system is 20 tons, 16 supporting frames are arranged, the total number is 32 supporting points, and each supporting point needs to bear 6.25 KN; the soil layer under the bedding layer is old soil, the bearing capacity is calculated according to 150KPa, so that the area S of the embedded part is more than 6.25/150 which is 0.042m2, and the size of the engineering embedded part is 250 multiplied by 250 (unit mm).

Considering the positioning of the embedded part and the possible deviation generated when the cushion concrete is poured, a pair of penetrating steel bars are arranged at the center of the embedded part, and the depth of the steel bars inserted into the soil layer is not less than 200 mm; when the embedded part is positioned, a reinforcing steel bar is also arranged at the center of the annular bolt through a total station, confirmation is carried out according to the arc radius and the position of the reinforcing steel bar at the center of the embedded part, and the foundation cushion is poured after the embedded part position and the elevation are rechecked without errors.

preferably, after the foundation cushion construction is completed, a measuring platform 3 is required to be arranged at the central position of the installation of the bolt system, the measuring platform 3 is divided into two layers, namely a supporting frame top elevation position and a bolt top elevation position, and the measuring platform 3 can adopt a steel bar as a fixing frame but is not connected with a foundation steel bar. After the measuring platform 3 is installed, the total station can be used for projecting the center point of the bolt system to the two layers of platforms by utilizing coordinates, and the steel plate is fixed by using a steel nail. If the basic construction period is long, the central point on the measuring platform 3 is retested regularly, and if deviation exists, adjustment is carried out in time.

The measuring platform 3 mainly functions in two stages: the first stage is that when the bolt support frames are installed, the central points are used for projecting arc lines for installing bolts on the cross beams of each group of support frames; and the second stage is that after the bolts are installed, the central point is used for detecting whether the radius error of each group of bolts is within the control range.

step C, manufacturing and installing a bolt support frame; the bolt support frames are respectively positioned along the circumference, the top elevation of the bolt support frames is adjusted, and the bolt support frames are welded on each embedded part on the circumference of the cushion layer bolt system;

The manufacturing and mounting quality of the support frame 9 is the first step of ensuring the mounting precision of the whole bolt system, so that the strength stability, positioning and elevation control of the support frame are particularly critical. The top of the support frame 5 is horizontally provided with a strip-shaped support frame cross beam 901, which can be made of square steel, H-shaped steel and other materials with large upper and lower contact areas, and the elevation and the flatness of the support frame are easy to control. The quantity of support frame 9 can be according to the weight of whole bolt system, the soil horizon bearing capacity size under the bed course and choose for use to bury factors such as piece size and comprehensively consider, and this engineering hot-blast furnace major diameter rag bolt's support frame system is as follows: 16 support frames are arranged in the circular bolt system of each abutment and are manufactured and installed by adopting section steel combination, the upright posts 902 of the support frames vertically arranged at the left side and the right side adopt 2L 100 x 10 angle steel, the cross beams 901 of the support frames adopt 160 and 100 square steel with the length and the width respectively, and the lower parts of the support frames adopt 2C 16 to form scissors and brace and draw knots to form support frame fixing rods 903. 2L 50 and 5 angle steels are adopted to be crossed and tied inside and outside each support frame to form an inner tie rod 904 and an outer tie rod 905, and the drawing is shown in figures 4 and 5.

Before the installation of the bolt support frame 9, all cushion layer embedded part elevations need to be rechecked, whether the height of the support frame 9 after the installation meets the elevation of the lower fixing ring plate 5 of the bolt is checked, and measures of additionally arranging steel plate cushion blocks or cutting off the support frame upright post 902 on the embedded part which do not meet the requirements are timely processed. The flatness of the support frame cross beam 901 and the elevation of the top of the support frame cross beam 901 are two important indexes for mounting the support frame 9, the flatness can be monitored by adopting a level gauge, and the elevation can be monitored by adopting a level gauge.

Step D, sequentially installing the bolt systems on the support frame, and finely adjusting the top elevation and the verticality of the foundation bolts of each system

After the support frame 9 is installed, the measuring platform 3 is used for installing a positioning line for the annular bolt put on the support frame cross beam 901. The annular bolt system needs to be transported to the site one by one according to the serial number compiled during pre-assembly for hoisting construction, and hoisting machinery is reasonably selected according to the crane station and the in-place distance of the bolt system during site hoisting.

After the bolt system is in place, the height of the bolt top can be retested and adjusted by using a central point arranged on the measuring platform 3, the retesting is consistent according to a pre-assembly method, if deviation exists, a steel plate with corresponding thickness is adopted on a cross beam of the support frame for fine adjustment of elevation until the control precision requirement is met, and after the elevation of the bolt is checked to be correct, a professional welder welds and connects a cutting seam between the ring plates and gaps between the ring plates and the cross beam of the support frame one by one. The installation work of the whole bolt system is completed.

e, welding and installing an integral annular bolt system;

Step F, pouring concrete: constructing foundation steel bars and concrete;

the foundation steel bars below the top elevation of the bolt support frame need to be constructed after the support frame is installed, the steel bars above the support frame need to be constructed after the bolt is integrally installed, the steel bars are installed by a self supporting system, and the steel bars are strictly forbidden to be placed on the bolt support body system. The screw thread part of the foundation bolt is wrapped by oilcloth so as to prevent the screw thread from being polluted in the concrete pouring process. The concrete is strictly poured in layers, and when the concrete is pumped for feeding, the bolt is prevented from being impacted. The correct position of each bolt is ensured, and no disturbance phenomenon exists. Forming a flat concrete base 8.

G. Acceptance and handover;

Marking out the axis of bolt system on the basis, carrying out position and elevation acceptance to the buried bolt one by one, making written acceptance, handing-over record, when construction cycle is longer can't hand-over immediately, buried bolt should make interim safeguard measure.

According to the method, a bolt system of a system is divided into a plurality of parts in advance, all bolts, an upper anchor plate and a lower anchor plate of each part are processed into a whole in a workshop according to a ring shape, the bolt anchor plate system is lifted in place by a lifting machine for a plurality of times, and the support frame is installed in place firstly. The support frame and the equipment foundation template form a system in the construction process, and the support frame cannot be influenced in the equipment foundation concrete pouring process. According to the construction method of the scheme, bolt precision control is divided into two stages: the bolt system is controlled in a processing workshop and on-site construction, multi-site and multi-operation combination is carried out, and the installation precision of the bolt system is comprehensively controlled. The construction method is simple and convenient, and is easy to control and adjust. On the whole, work load reduces, and bolt accuracy control is good, and stability is good, practices thrift cost and material.

The invention and its embodiments have been described above schematically, without limitation, and the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The representation in the drawings is only one of the embodiments of the invention, the actual construction is not limited thereto, and any reference signs in the claims shall not limit the claims concerned. Therefore, if a person skilled in the art receives the teachings of the present invention, without inventive design, a similar structure and an embodiment to the above technical solution should be covered by the protection scope of the present patent. Furthermore, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. Several of the elements recited in the product claims may also be implemented by one element in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.

Claims (6)

1. A method for installing an annular bolt of a metallurgical industrial furnace body comprises the following steps:

A. Manufacturing and dividing a bolt system, namely dividing all bolts (1) into a plurality of symmetrical systems; each system comprises a plurality of bolts (1) and bolt anchor plates, and the bolt anchor plates in each system are processed and molded according to a whole circular arc plate; the bolt anchor plate is a lower fixed ring plate (5), a plurality of bolts (1) of each system are connected together in an annular mode through the lower fixed ring plate (5) for connection and fixation, the lower fixed ring plate (5) is an arc plate, and holes matched with the diameters of the bolts (1) are formed in the middle of the lower fixed ring plate; the top of the bolt (1) is provided with a groove; the bolt anchor plate also comprises an upper fixed ring plate (4), the middle upper part of the bolt (1) is provided with the upper fixed ring plate (4) with the same structure as the lower fixed ring plate (5), and all bolts (1) in the system are connected into a whole through the two arc plates for processing;

In the step A, the bolt (1), the upper fixed ring plate (4) and the lower fixed ring plate (5) are processed and then pre-assembled, and the steps are as follows:

1) arranging a pre-assembly platform;

2) Drawing two vertical control axes and the diameter of a ring plate on a pre-assembly platform, arranging a measuring platform (3) with the same height as the bolt (1) at the annular center position, and sequentially placing lower fixed ring plates (5) on the platform according to the number of blocks in the design according to the diameter of the arc plate; secondly, according to the arrangement positions of the bolts (1) in the design drawing, preliminarily mounting all the bolts (1) in place in sequence; finally, spot welding the upper fixing ring plate (4) in place;

3) The mounting radius of each bolt (1) is adjusted one by taking the measuring platform (3) as the circle center, the lower fixing ring plate (5) of each bolt (1) is fixed by the bolt (1), two bolts on the diameter position are detected, the upper fixing ring plate (4) can be fixed by the bolts with the distance error within the standard, and a spot welding part (102) is formed;

4) after the pre-assembly is finished, marking sequence characters on each bolt system;

B. The support frames are embedded in the cushion layer under the bolt system, and iron pieces are fixedly welded, and concrete pouring is carried out on the foundation cushion layer;

C. manufacturing, positioning, adjusting the top elevation and installing a bolt support frame (9);

D. Positioning a plurality of bolt systems in place in times, and adjusting the top elevation and the perpendicularity of the foundation bolts;

E. The installation is an integral ring bolt system;

F. pouring the foundation concrete of the bolt equipment;

G. all parties check and accept.

2. The method for installing the ring bolt of the metallurgical industrial furnace body according to claim 1, wherein the method comprises the following steps: the lower fixed ring plate (5) and the upper fixed ring plate (4) are processed in a block butt joint mode; a notch (402) is arranged between the arc panels (401), the front surface (403) is formed by welding a single-side groove on the front surface for one time, then the back surface is subjected to back chipping and then welding to form a back surface welding point (404), and finally the front surface is welded for one time to finish secondary welding.

3. The method for installing the ring bolt of the metallurgical industrial furnace body according to claim 1, wherein the method comprises the following steps: and B, placing embedded parts at the positions of the upright columns (902) of the bolt support frame before the step B.

4. The method for installing the ring bolt of the metallurgical industrial furnace body according to claim 1, wherein the method comprises the following steps: and C, the support frame (9) comprises a strip-shaped support frame cross beam (901) horizontally arranged at the top, support frame upright columns (902) vertically arranged on the left side and the right side, the support frame cross beam (901) is fixed at the top ends of the support frame upright columns (902), 2 scissors are adopted to support and tie the support frame upright columns (902) to form support frame fixing rods (903), and angle steel is adopted to cross tie the inside and the outside of each support frame to form an inner tie rod (904) and an outer tie rod (905).

5. The method for installing the ring bolt of the metallurgical industrial furnace body according to claim 1, wherein the method comprises the following steps: the measuring platform (3) is provided with two layers, the height of the two layers is respectively the elevation position of the top of the supporting frame and the elevation position of the top of the bolt, and the measuring platform (3) adopts a steel bar as a fixing frame.

6. The method for installing the ring bolt of the metallurgical industrial furnace body according to claim 1 or 5, wherein the method comprises the following steps: and D, after the bolt system is in place, retesting and adjusting the height of the bolt top by using a central point arranged on the measuring platform (3), wherein the retesting is consistent according to a pre-assembly method, and if the deviation exists, fine adjustment of the elevation is carried out on a cross beam of the support frame by adopting a steel plate with corresponding thickness until the requirement of control precision is met.