CN114991444A - Movable and modularly assembled mounting rack and construction method based on same - Google Patents

Abstract

The invention relates to a movable and modularly assembled mounting rack and a construction method based on the same, wherein the mounting rack comprises a plurality of layers of platform modules and a hoisting device; the platform module consists of a platform support frame, a platform body and a ladder stand, wherein the platform body is arranged in the platform support frame, and the ladder stand is arranged on one side of the platform support frame; the platform support frame and the platform body, and the platform support frame and the ladder are in socket connection; each layer of platform module is detachably connected through a platform support frame; the platform support frame is formed by connecting 4 upright posts and a support frame through sockets; and a lifting device is arranged at the top of the uppermost platform module. The mounting frame adopts a modular structure, can be quickly assembled to a required height on site, and can be integrally moved through a crane; the mounting frame is provided with a plurality of layers of construction platforms, each layer of construction platform can stand for 2-3 persons, and is used for installing furnace protection iron fittings including small springs, so that the construction efficiency can be greatly improved, and the mounting frame is safer and more reliable.

Description

Movable and modularly assembled mounting rack and construction method based on same

Technical Field

The invention relates to the technical field of coke oven corollary equipment installation, in particular to a movable and modularly assembled installation frame for installing coke oven body furnace protection iron fittings, installing small springs and pressurizing construction and a construction method based on the installation frame.

Background

The coke oven masonry is mainly built by silica bricks. During the baking and production process of the coke oven, the silicon dioxide which is the main component of the silica brick is subjected to crystal form transformation under the action of temperature, so that the volume and the shape of the silica brick are changed, and the masonry is deformed or damaged. In addition, coke guards are subject to mechanical forces. In order to reduce the damage of the coke oven masonry, a certain protective pressure needs to be applied to the coke oven masonry by using an oven protection iron piece.

The furnace protecting iron piece comprises longitudinal braces, transverse braces, springs, furnace columns, a protective plate, a furnace door frame and the like, wherein the middle part of each longitudinal brace is a flat steel, and round steel with threads is arranged at two ends of each longitudinal brace. The spring group applies certain pressure to the resisting walls at two ends of the coke oven so that the coke oven brickwork can not deform or crack due to free expansion or contraction in the longitudinal direction. The function of the cross-brace, the spring and the oven column is to exert protective pressure on the coke oven in the transverse direction. The cross braces are made of low-carbon round steel with threads at the end parts and comprise two types of upper cross braces and lower cross braces, the upper cross braces are arranged in brace grooves on the top of the coke oven, and the lower cross braces are arranged in the coke oven side and the coke side base platform. The upper cross brace passes through the coal charging hole and the vicinity of the ascending bone hole and is easily corroded and creeped by the action of crude gas escaping from the carbonization chamber. In order to protect the upper cross brace, the sleeve and the tension of the cross brace can be added at the position. The heat is transferred to the furnace column welded by I-shaped steel or channel steel through a spring or a spring group. The furnace column is subjected to the pressure of springs at the upper end and the lower end and the reaction force of the furnace body on the furnace column. In the production process, the reaction force of the coke oven brickwork to the oven column can be changed, so that the curvature of the oven column is changed. In order to stabilize the pressure of the furnace pillar against the brickwork and not to cause the furnace pillar to generate permanent deformation, the bending degree of the furnace pillar is periodically measured, and the pressure of the upper spring and the lower spring against the furnace pillar is properly adjusted. The spring comprises a large spring and a small spring. The pressure of the oven post on the coke oven masonry is transferred to the protection plate by the small spring. Coke ovens expand unequally in the elevation direction, so the amount of compression of each small spring should be measured and adjusted periodically to equalize the pressure at each point of force.

With the development of the coke oven towards large scale, the size of the oven protecting iron piece matched with the coke oven body is increased, and the number of small springs on two sides of the oven post is increased. Because the coke oven body is high (generally the height is more than 15 meters), and the distance between the oven columns is dense, the conventional construction hanger (consisting of a safety rope and a wood board and only bearing one worker) is adopted to carry out the operations of placing and screwing the spring, the efficiency is low, and the danger is high.

Disclosure of Invention

The invention provides a movable and modularly assembled mounting rack and a construction method based on the same, wherein the mounting rack adopts a modularized structure, can be rapidly assembled to a required height on site, and can be integrally moved by a crane; the mounting frame is provided with a plurality of layers of construction platforms, each layer of construction platform can stand for 2-3 persons, and is used for installing furnace protection iron fittings including small springs, so that the construction efficiency can be greatly improved, and the mounting frame is safer and more reliable.

In order to achieve the purpose, the invention adopts the following technical scheme:

a movable and modularly assembled mounting rack comprises a plurality of layers of platform modules and a lifting device; the platform module consists of a platform support frame, a platform body and a ladder stand, wherein the platform body is arranged in the platform support frame, and the ladder stand is arranged on one side of the platform support frame; the platform support frame and the platform body, and the platform support frame and the ladder are in socket connection; each layer of platform module is detachably connected through a platform support frame; the platform support frame is formed by connecting 4 upright posts and a support frame through sockets; and a lifting device is arranged at the top of the uppermost platform module and used for integrally lifting the mounting frame.

The supporting frame is of a rectangular frame structure, and 4 stand columns are respectively arranged at four corners of the supporting frame; the middle part of each upright post is provided with a socket plate, the socket plate is provided with socket holes, four corners of the bottom of the support frame are respectively provided with bolts, and the bolts are correspondingly inserted into the socket holes one by one; flanges are respectively arranged at the top and the bottom of the upright post, and the upright posts corresponding to the adjacent 2 layers of platform modules are fixedly connected through the flanges and matched bolts.

And a socket is arranged on one side of the supporting frame, an L-shaped hook is correspondingly arranged on one side of the crawling ladder, one end of the L-shaped hook is welded and fixed with the vertical rod of the crawling ladder, and the other end of the L-shaped hook is downwards inserted into the socket corresponding to the supporting frame.

The lower part of the platform module at the lowest layer is provided with a reinforced structure, and the reinforced structure consists of pull rods connected among 4 upright posts; the bottoms of the vertical columns in the lowest platform module do not manage to be flanged.

The platform body consists of a platform plate and a fence; the platform plate is a rectangular platform plate matched with the support frame, three sides of the platform plate are surrounded by the fence, and the other side of the platform plate is of an open structure; bearing slots are respectively arranged on two sides of the supporting frame, inserting plates are correspondingly arranged on two sides of the bottom of the platform plate, and the inserting plates and the bearing slots are correspondingly inserted one by one.

Except for the platform module at the lowest layer, the ladder stand protecting cage is arranged outside the ladder stands of other platform modules, and the ladder stand protecting cage and the ladder stand are fixedly welded.

The lifting device consists of 4 lifting pieces arranged at the top of the upright post of the uppermost platform module; each lifting piece comprises a flange plate and a lifting lug, the flange plate is fixedly connected with the flange plate corresponding to the top of the upright post through bolts, and the lifting lug is fixed to the top of the flange plate.

The construction method based on the movable modular-assembled mounting frame comprises the following steps:

1) when the coke oven protection iron piece is installed, 2 groups of mounting frames are adopted, and the components forming the mounting frames are conveyed to a front platform of the coke oven side and the coke side by a plate car to assemble the mounting frames;

2) installing the platform module at the lowest layer; 4 stand columns of the platform module at the lowest layer are connected through a reinforcing structure to form a base, the base is horizontally placed on the platform in front of the furnace, and then the corresponding supporting frame and the vertical rods are inserted and fixed; hoisting the platform body, pushing the platform body onto the supporting frame, and inserting and fixing the platform body and the supporting frame; inserting and fixing the corresponding ladder stand and the support frame;

3) installing the platform modules of the other layers; firstly, butting the upper-layer platform module with the upright rods in the lower-layer platform module, aligning the corresponding flange plates, and then fixedly connecting the flange plates through bolts; inserting and fixing the corresponding support frame and the upright stanchion; hoisting the platform body, pushing the platform body onto the corresponding support frame, and inserting and fixing the platform body and the corresponding support frame; finally, the crawling ladder with the crawling ladder protection cage is fixedly inserted into the corresponding supporting frame;

4) after all the platform modules of each layer are installed, a lifting device is installed at the top of the platform module of the uppermost layer; then, the assembled mounting rack is righted by a travelling crane above the steel structure greenhouse of the coke oven and pushed into a construction position;

3) a group of mounting frames are respectively arranged on two sides of machine coke of the coke oven, and installation personnel enter the mounting frames for construction; the lowest layer platform module is used for mounting the regenerator cross beam, the small furnace column in the center of the cross beam and the small springs on the large furnace columns on two sides; the platform modules as layers are used for installing small springs on large furnace columns on two sides; after the cross beam of the regenerator, the small furnace column and the small springs at all positions are completely installed, synchronous pressurization operation is carried out;

4) constructing for 1 construction unit for every 2 large furnace columns, after all accessories on the large furnace columns in the 1 st construction unit are installed and pressurized, removing the installation frame by an installer, penetrating the installation frame into lifting lugs of all lifting parts by a travelling crane at the top of the steel structure greenhouse of the coke oven through steel wire ropes, and integrally lifting and moving the installation frame to the construction position of the next construction unit;

5) repeating the above steps until all construction contents are completed;

6) and after the construction is finished, the mounting frame is dismantled, and the platform modules are dismantled layer by layer from top to bottom.

Compared with the prior art, the invention has the beneficial effects that:

1) the mounting frame adopts a modular structure, can be quickly assembled to a required height on site, can be integrally moved through a crane, and is convenient and quick to apply on a construction site;

2) compared with the traditional construction hanger (consisting of a safety rope and a wood board), the construction safety is greatly improved;

3) the mounting frame is of a modular structure, the processing, the assembly and the transportation are convenient, and the construction efficiency can be improved by 6-8 times compared with that of the traditional mode;

4) the installation rack can be used as inherent assets of enterprises for turnover, and the equipment utilization rate is improved.

Drawings

Fig. 1 is a schematic perspective view of the mounting bracket of the present invention.

Fig. 2 is an exploded view of the mount of the present invention.

Fig. 3 is a schematic perspective view of the platform support of the present invention.

Fig. 4 is a schematic perspective view of the column according to the present invention.

Fig. 5 is a schematic perspective view of the support frame according to the present invention.

Fig. 6 is a schematic perspective view of the platform body according to the present invention.

Fig. 7 is a schematic perspective view of the ladder stand of the present invention.

Fig. 8 is a schematic view of a standing structure of the ladder stand with the protective cage.

Fig. 9 is a schematic perspective view of the lifting element of the present invention.

In the figure: 1. upright post 11, socket plate 12, flange plate 13, socket hole 2, support frame 21, plug 22, socket groove 23, socket 3, platform body 31, platform plate 32, fence 33, plug board 4, ladder 41, L-shaped hook 5, ladder cage 6, lifting piece 61, flange plate 62, lifting lug 7 and reinforced structure

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings:

as shown in fig. 1 to 9, the movable and modularly assembled mounting rack of the present invention comprises a plurality of layers of platform modules and a lifting device; the platform module consists of a platform support frame, a platform body 3 and a ladder stand 4, wherein the platform body 3 is arranged in the platform support frame, and the ladder stand 4 is arranged on one side of the platform support frame; the platform support frame and the platform body 3 and the platform support frame and the ladder stand 4 are connected in a socket joint way; each layer of platform module is detachably connected through a platform support frame; the platform support frame is formed by connecting 4 upright posts 1 and a support frame 2 through a socket joint; and a lifting device is arranged at the top of the uppermost platform module and used for integrally lifting the mounting frame.

As shown in fig. 3 and 4, the supporting frame 2 is a rectangular frame structure, and 4 upright posts 1 are respectively arranged at four corners of the supporting frame 2; the middle part of each upright post 1 is provided with a socket plate 11, the socket plate 11 is provided with socket holes 13, four corners of the bottom of the support frame 2 are respectively provided with bolts 21, and the bolts 21 are correspondingly inserted into the socket holes 13 one by one; flanges 12 are respectively arranged at the top and the bottom of the upright posts 1, and the upright posts 1 corresponding to the adjacent 2 layers of platform modules are fixedly connected through the flanges 12 and matched bolts.

As shown in fig. 1, 5 and 7, a socket 23 is arranged on one side of the support frame 2, an L-shaped hook 41 is correspondingly arranged on one side of the ladder stand 4, one end of the L-shaped hook 41 is welded and fixed with the vertical rod of the ladder stand 4, and the other end of the L-shaped hook 41 is downwards inserted into the socket 23 corresponding to the support frame 2.

The lower part of the platform module at the lowest layer is provided with a reinforced structure 7, and the reinforced structure 7 consists of pull rods connected among 4 upright posts 1; the bottom of the uprights 1 in the lowermost platform module does not manage to have a flange 12.

As shown in fig. 6, the platform body 3 is composed of a platform plate 31 and a fence 32; the platform board 31 is a rectangular platform board matched with the support frame 2, three sides of the platform board 31 are surrounded by the fence 32, and the other side is an open structure; socket grooves 22 are respectively arranged on two sides of the supporting frame 2, inserting plates 33 are correspondingly arranged on two sides of the bottom of the platform plate 31, and the inserting plates 33 are correspondingly inserted into the socket grooves 22 one by one.

As shown in fig. 1 and 8, except for the lowest platform module, a ladder stand protective cage 5 is arranged outside the ladder stands 4 of the other platform modules, and the ladder stand protective cage 5 and the ladder stand 4 are welded and fixed.

The lifting device consists of 4 lifting pieces 6 arranged at the top of the upright post 1 of the uppermost platform module; as shown in fig. 9, each lifting member 6 comprises a flange plate 61 and a lifting lug 62, the flange plate 61 is fixedly connected with the flange plate 12 at the top of the corresponding upright 1 through bolts, and the lifting lug 62 is fixed at the top of the flange plate 61.

The construction method based on the movable modular assembly mounting frame comprises the following steps:

1) when the coke oven protection iron piece is installed, 2 groups of mounting frames are adopted, and the components forming the mounting frames are conveyed to a front platform of the coke oven side and the coke side by a plate car to assemble the mounting frames;

2) installing the platform module at the lowest layer; 4 upright posts 1 of the platform module at the lowest layer are connected through a reinforcing structure 7 to form a base, the base is horizontally placed on the platform in front of the furnace, and then the corresponding supporting frame 2 and the upright posts 1 are inserted and fixed; hoisting the platform body 3 and pushing the platform body onto the supporting frame 2, and inserting and fixing the platform body 3 and the supporting frame 2; inserting and fixing the corresponding ladder stand 4 and the supporting frame 2;

3) installing the rest layers of platform modules; firstly, butting the upper-layer platform module with the upright rods 1 in the lower-layer platform module, aligning the corresponding flange plates 12, and then fixedly connecting the flange plates through bolts; inserting and fixing the corresponding supporting frame 2 and the upright 1; hoisting the platform body 3 and pushing the platform body to the corresponding support frame 2, and inserting and fixing the platform body 3 and the corresponding support frame 2; finally, the crawling ladder 4 with the crawling ladder protection cage 5 is fixedly spliced with the corresponding support frame 2;

4) after all the platform modules of each layer are installed, a lifting device is installed at the top of the platform module of the uppermost layer; then, the assembled mounting rack is righted by a travelling crane above the steel structure greenhouse of the coke oven and pushed into a construction position;

3) a group of mounting frames are respectively arranged on two sides of machine coke of the coke oven, and installation personnel enter the mounting frames for construction; the lowest platform module is used for mounting the regenerator beam, a small furnace column in the center of the beam and small springs on large furnace columns on two sides; the platform modules as layers are used for installing small springs on large furnace columns on two sides; after the cross beam of the regenerator, the small furnace column and the small springs at all positions are completely installed, synchronous pressurization operation is carried out;

4) constructing 1 large furnace column for every 2 large furnace columns, removing the mounting frame by an installer after all accessories on the large furnace columns in the 1 st construction unit are installed and pressurized, penetrating the mounting frame into the lifting lugs 62 of the lifting pieces 6 through steel wire ropes by using a travelling crane at the top of the steel structure greenhouse of the coke oven, and integrally lifting and moving the mounting frame to the construction position of the next construction unit;

5) repeating the above steps until all construction contents are completed;

6) and after the construction is finished, the mounting frame is dismantled, and the platform modules are dismantled layer by layer from top to bottom.

The invention discloses a movable and modularly assembled mounting rack which is a floor type multilayer steel structure mounting platform and is designed for meeting the mounting requirements of large-scale coke ovens. The small spring is used for installing the small spring and certain accessories on the coke oven protection iron piece. Its sound construction uses safe and reliable, can improve the efficiency of construction by a wide margin, replaces conventional construction gallows, makes constructor can be under construction on the steel construction platform that stabilizes. The parallel construction can be realized when the load and the height meet the standard requirements, thereby greatly accelerating the construction progress.

The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[ examples ] A

In this embodiment, movable and modularly assembled mounting rack is composed of a platform support frame, a platform body, a crawling ladder and a lifting device.

The base is constituteed by 4 pole settings and reinforced structure to lower floor's platform module, and 4 pole settings on the base pass through flange joint with 4 pole settings of its upper platform module, and braced frame pegs graft through holding the plug tray with the pole setting, pegs graft between platform body and the braced frame, and the cat ladder is pegged graft with braced frame. The hoisting device is arranged at the top of the upright post of the uppermost platform module and is connected with the flange plate through a bolt, so that the mounting frame can be integrally hoisted.

In this embodiment, the pull rod forming the reinforcing structure is made of angle steels, and 4 angle steels are connected end to end and respectively welded to the vertical rod to form a rectangular reinforcing ring. The pole setting adopts hollow steel pipe, and a ring flange is all welded at the top of every pole setting, and the ring flange is used for passing through bolted connection with the ring flange of upper platform module pole setting bottom, and a take socket plate of socket hole is welded at the middle part of pole setting for peg graft with the braced frame who corresponds. The vertical rods in the platform modules at the lowest layer are only provided with flange plates at the top, the flange plates are not provided at the bottom, and the top and the bottom of the upright posts of the platform modules at the other layers are respectively provided with flange plates which are sequentially connected to form a multilayer structure.

In this embodiment, the support frame is a planar frame structure formed by welding 7 angle steels, and 4 short angle steels are arranged along the longitudinal direction and 3 long angle steels are arranged along the transverse direction. Bearing slots are formed in the top surfaces of the 2 short angle steels at the two ends of the platform body, are strip-shaped holes and are symmetrically arranged on the two sides of the axis of the supporting frame and used for being matched and spliced with the platform body. Wherein 2 ear seats with bell and spigot are welded on the outer side of the short angle steel at one end, and the bell and spigot are symmetrically arranged on two sides of the axis of the support frame and used for being spliced with the ladder stand. And 4 cylindrical short shafts (bolts) are welded at the bottoms of four corners of the supporting frame (the lower surfaces of the two outer long angle steels) and are used for being spliced with socket holes of socket plates on the vertical rods.

The platform body comprises 4 steel pipes (as the stand of platform rail), checkered plate (as the platform board), keeps off the sole (locating the long limit bottom in one side that the platform body was equipped with the rail), angle steel, billet and 4 flat tub of constitutions, and angle steel and billet are connected and are formed between the stand and enclose the fender, and 4 flat tub of welding of root are used for pegging graft with the socket groove on the braced frame in the bottom of checkered plate.

The lifting device is composed of 4 lifting pieces, a flange plate on each lifting piece is provided with a structure matched with a flange plate on the stand column, a lifting lug is welded at the center of the flange plate and is a semicircular plate, a lifting hole is machined in the lifting lug, and a steel wire rope penetrates through the lifting hole during lifting.

In the embodiment, 4 layers of platform templates are arranged, and the ladder stand is divided into 4 sections corresponding to the platform templates; wherein, the section at the lowest part is not provided with a ladder stand protection cage, and the rest 3 sections are provided with ladder stand protection cages. The cat ladder is formed by 2 angle steels and a plurality of ribbed steel bars in a welding way. 2L-shaped hooks are welded on the surface of one side, close to the platform supporting frame, of the angle steel and are used for being plugged with sockets on the supporting frame, and the L-shaped hooks are arranged at the height position of the ladder stand 2/3. The ladder stand protection cage is composed of a plurality of ferrules, each ferrule is formed by welding plain steel bars or flat steel bars after bending, reasonable space is kept between the ferrules, a certain space is reserved at the top of the ladder stand, and a person can conveniently enter the platform.

In this embodiment, the base is made of 2 long angle steels, 2 short angle steels and 4 vertical rods, the length of the long angle steel is 4500mm, the length of the short angle steel is 1500mm, and the specification of the angle steel is L100 × 100 × 10. The 4 angle steels form a rectangular reinforcing structure and are welded and fixed with the 4 vertical rods.

The pole has an outer diameter of 133mm, an inner diameter of 120mm and a length of 3830 mm. The socket plate is welded at a position which is 5mm away from the bottom 2115 of the vertical rod, the outer diameter of the socket plate is 300mm, the thickness of the socket plate is 10mm, and 4 socket holes with the diameter of 30mm are uniformly formed in the socket plate along the circumferential direction. A flange plate with the thickness of 20mm is welded at the top end of the vertical rod, the outer diameter of the flange plate is 300mm, the inner diameter of the flange plate is 120mm, and 4 flange holes with the diameter of 30mm are uniformly distributed on the flange plate along the circumferential direction.

The support frame is formed by welding 2 long angle steels and 4 short angle steels, the specification of the long angle steels is L100 multiplied by 10, and the length of the long angle steels is 4500 mm. The short angle steel has the specification of L100 multiplied by 10 and the length of 1500 mm. After the support frame is manufactured, 2 strip-shaped holes are cut in 2 short angle steels at two ends of the support frame respectively, and the size of each strip-shaped hole is 300mm multiplied by 30 mm. And 4 short shafts are welded at the bottoms of the four corners of the supporting frame, the diameter of each short shaft is 30mm, and the length of each short shaft is 50 mm. 2 ear seats with bell and spigot are welded on the outer side of the short angle steel at one end of the supporting frame, the thickness of each ear seat is 50mm, and a rectangular through hole (bell and spigot) with the diameter of 30 multiplied by 30mm is processed on each ear seat.

The platform body comprises 4 steel pipes, 4 billet, 2 angle steel, 2 fender sole, checkered plate and 4 flat pipes. The steel pipe used as the fence upright post is a DN32 steel pipe with the length of 1200mm, the lengths of the steel bars are 4500mm and 1500mm respectively (corresponding to the long side and the short side of the platform body respectively), the cross-sectional dimension is 60 multiplied by 6 (the steel bars are used as the middle enclosing structure and the distance is 400mm), the length of the angle steel is 1500mm, and the specification is L40 multiplied by 40 multiplied by 10. The size of the pattern plate is 4500mm × 1500mm, and the thickness is 4.5 mm. The external dimension of the flat tube is 300mm multiplied by 100mm, and the wall thickness is 2 mm. The dimension of the foot-blocking plate is 400mm (height) multiplied by 0.7mm (thickness), and the lengths are 4500mm and 1500mm respectively (corresponding to the long edge and the short edge of the platform body respectively).

The overall dimension of the upper flange plate of the hoisting part is consistent with that of the upper flange plate of the upright stanchion, but the center of the flange plate is provided with a hole, and the flange plate is of a solid structure; the height of the lifting lug on the flange plate is 130mm, and a round hole with the diameter of 30mm is processed in the center of the lifting lug.

The cat ladder is formed by 2 angle steels and a plurality of ribbed steel bars in a welding way, and 3 ferrules are additionally arranged on the cat ladder with the protective cage. The specification of 2 angle steels is L100 multiplied by 6, and the length is 3440 mm. The length of ribbed steel bar is 580mm, and the cross-section diameter is 20mm, arranges the interval and is 200 mm. The sectional dimension of the L-shaped hook is 30mm multiplied by 30mm, the length of the straight section is 119mm, the length of the vertical section is 130mm, and the distance between the bottom surface of the straight section and the bottom end of the ladder stand is 2255 mm. The interval of 3 lassos is 800mm, and the distance of the lasso of below and cat ladder bottom is 800mm, and the lasso is formed by welding after the bending of phi 20 round steel.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. A movable and modularly assembled mounting frame is characterized by comprising a plurality of layers of platform modules and a lifting device; the platform module consists of a platform support frame, a platform body and a ladder stand, wherein the platform body is arranged in the platform support frame, and the ladder stand is arranged on one side of the platform support frame; the platform support frame and the platform body, and the platform support frame and the ladder are in socket connection; each layer of platform module is detachably connected through a platform support frame; the platform support frame is formed by connecting 4 upright posts and a support frame through a socket joint; and a hoisting device is arranged at the top of the uppermost layer platform module and used for hoisting the mounting rack integrally.

2. The movable and modularly assembled mounting frame as claimed in claim 1, wherein said supporting frame is a rectangular frame structure, 4 columns are respectively provided at four corners of the supporting frame; the middle part of each upright post is provided with a socket plate, the socket plate is provided with socket holes, four corners of the bottom of the support frame are respectively provided with bolts, and the bolts are correspondingly inserted into the socket holes one by one; flanges are respectively arranged at the top and the bottom of the upright post, and the upright posts corresponding to the adjacent 2 layers of platform modules are fixedly connected through the flanges and matched bolts.

3. The movable and modularly assembled mounting bracket as recited in claim 2, wherein a socket is provided on one side of said supporting frame, an L-shaped hook is correspondingly provided on one side of said ladder stand, one end of said L-shaped hook is welded and fixed to said vertical rod of said ladder stand, and the other end of said L-shaped hook is inserted downward into said socket corresponding to said supporting frame.

4. A removable, modular assembly mount as claimed in claim 2 wherein the lowermost platform module is provided with a reinforcing structure at its lower part, the reinforcing structure comprising tension rods connected between 4 uprights; the bottoms of the vertical columns in the lowest platform module do not manage to be flanged.

5. A removable, modular, and assembly mounting rack as recited in claim 1, wherein said platform body comprises a platform plate and a rail; the platform plate is a rectangular platform plate matched with the support frame, three surfaces of the platform plate are surrounded by the fence, and the other surface of the platform plate is an open structure; bearing slots are respectively arranged on two sides of the supporting frame, inserting plates are correspondingly arranged on two sides of the bottom of the platform plate, and the inserting plates and the bearing slots are correspondingly inserted one by one.

6. The movable and modularly assembled mounting frame as claimed in claim 1, wherein except the lowest platform module, the ladder stand of the other platform modules is provided with a ladder stand cage outside, and the ladder stand cage and the ladder stand are welded and fixed.

7. The movable and modularly assembled mounting frame of claim 1 wherein said lifting means is comprised of 4 lifting members located at the top of the uppermost platform module column; each lifting piece comprises a flange plate and a lifting lug, the flange plate is fixedly connected with the flange plate corresponding to the top of the upright post through bolts, and the lifting lug is fixed to the top of the flange plate.

8. The construction method based on the movable modular-assembled mounting frame as claimed in any one of claims 1 to 7 is characterized by comprising the following steps:

1) when the coke oven protection iron piece is installed, 2 groups of mounting frames are adopted, and the components forming the mounting frames are conveyed to a front platform of the coke oven side and the coke side by a plate car to assemble the mounting frames;

2) installing the platform module at the lowest layer; 4 stand columns of the platform module at the lowest layer are connected through a reinforcing structure to form a base, the base is horizontally placed on the platform in front of the furnace, and then the corresponding supporting frame and the vertical rods are inserted and fixed; hoisting the platform body, pushing the platform body onto the support frame, and inserting and fixing the platform body and the support frame; inserting and fixing the corresponding ladder stand and the support frame;

3) installing the rest layers of platform modules; firstly, butting upright rods in an upper-layer platform module and a lower-layer platform module, aligning corresponding flange plates and then fixedly connecting the flange plates through bolts; inserting and fixing the corresponding support frame and the upright rod; hoisting the platform body, pushing the platform body onto the corresponding support frame, and inserting and fixing the platform body and the corresponding support frame; finally, the crawling ladder with the crawling ladder protection cage is fixedly inserted into the corresponding supporting frame;

4) after all the platform modules of each layer are installed, a lifting device is installed at the top of the platform module of the uppermost layer; then, the assembled mounting rack is righted by a travelling crane above the steel structure greenhouse of the coke oven and pushed into a construction position;

3) a group of mounting frames are respectively arranged on two sides of machine coke of the coke oven, and installation personnel enter the mounting frames for construction; the lowest layer platform module is used for mounting the regenerator cross beam, the small furnace column in the center of the cross beam and the small springs on the large furnace columns on two sides; the platform modules as layers are used for installing small springs on large furnace columns on two sides; after the regenerator beam, the small furnace columns and the small springs at all positions are completely installed, synchronous pressurization operation is carried out;

4) constructing 1 large furnace column for every 2 large furnace columns, removing the mounting frame by an installer after all accessories on the large furnace columns in the 1 st construction unit are installed and pressurized, penetrating the mounting frame into lifting lugs of each lifting piece through a steel wire rope by using a travelling crane at the top of the steel structure greenhouse of the coke oven, and integrally lifting and moving the mounting frame to the construction position of the next construction unit;

5) repeating the above steps until all construction contents are completed;

6) and after the construction is finished, the mounting frame is dismantled, and the platform modules are dismantled layer by layer from top to bottom.

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