CN105571323A - Mounting technology of furnace top - Google Patents

Abstract

The invention relates to a furnace roof installation process. Firstly, a plurality of manufactured elongated modules are hoisted and placed side by side on the furnace wall. The modules include a steel structure and a fiber module. The steel structure is provided with a pair of C steel, and set a number of through holes on both sides of the C-shaped steel; then choose a fiber blanket with the same length as the fiber module, fold it vertically and fix it between adjacent fiber modules, and then use bolts to pass through the adjacent C The through holes between the section steels make it tight; finally check the module gap and the compression density of the fiber blanket between the module and the furnace wall. After the inspection is up to standard, paint is sprayed on the surface of the furnace roof. The advantage of the present invention is that: the installation process of the furnace roof mainly hoists the modules on the furnace wall in sequence, and then inserts fiber blankets between adjacent modules and locks them with bolts. The entire furnace roof can be adjusted when it is installed on the furnace wall. At the same time, a single module is hoisted, which is convenient for hoisting and high installation efficiency.

Description

A Furnace Roof Installation Process

technical field

The invention relates to a furnace top installation process, which belongs to the technical field of furnace top installation of heating furnaces used in the iron and steel manufacturing industry.

Background technique

In the manufacturing process of steel billets, it needs to be placed in a heating furnace for heating in order to improve the plasticity of the steel and change the crystallization structure in the structure, so as to meet the use standard, and the heating furnace has played a great role in the above process At the same time, in order to achieve the specified heating temperature and ensure work efficiency, it is urgent to design a suitable furnace roof. The traditional furnace roof adopts a number of small modules, which are spliced horizontally and vertically, and the splicing workload is heavy; when the anchors are fixed, it cannot be tightened and tightened, resulting in poor sealing in the countless gaps formed between several small modules. Complete, and the density of the material set in the gap is not enough. After a period of use, the material will shrink due to heat, which will cause it to fall off, which seriously affects the work efficiency. Therefore, it is urgent to develop a furnace roof installation process with a small assembly workload and high work efficiency. After searching , no technical solutions identical or similar to the present invention have been found.

Contents of the invention

The technical problem to be solved by the present invention is to provide a furnace roof installation process with a small assembly workload and high work efficiency.

In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a furnace roof installation process, the innovation of which is that the installation process is specifically as follows:

(1) Hoist several strip-shaped modules that have been manufactured and place them side by side on the furnace wall. The modules include a steel structure and a fiber module fixed at the lower end of the steel structure; the steel structure includes a For C-shaped steel, steel plates connected to C-shaped steel and several square steels; several through holes are evenly distributed on both end faces of the C-shaped steel along the long axis direction; the fiber module is compressed by several layers of fiber blankets arranged along the long axis direction made;

(2) Choose a fiber blanket with the same length as the fiber module, and fold it so that its width is the same as the height of the fiber module, and apply glue to the folded overlapping surface; then place the folded fiber blanket vertically and aligned on the between adjacent fiber modules, and fix it on the fiber module with stainless steel pins;

(3) After the fiber blanket is fixed, each module is aligned along the long axis and perpendicular to the long axis. At this time, the through holes on the end faces of the adjacent C-shaped steel are also aligned, and then several bolts are used to pass through the adjacent C-shaped steel in sequence. The through hole on the end face is tightened along the assembly direction of the module, and then locked by the nut after tension;

(4) Check the compression density of the fiber blanket between each module. When the inspection reaches the standard, spray the paint on the surface of the furnace roof, and the heating furnace can be ignited 12 hours after spraying.

Further, in the step (4), the surface of the furnace roof is sprayed with paint twice, and the interval between the two times is 6 hours.

Further, the compression density of the fiber blanket between the modules in the step (4) is detected by a comparison method, the density of the fiber module is 128kg/m ³ , and the density of the fiber blanket between adjacent fiber modules is greater than that of the fiber module When the self-compressed density is detected, it reaches the standard.

The advantages of the present invention are:

(1) Furnace roof installation process mainly hoisting the modules on the furnace wall in sequence, and then inserting fiber blankets between adjacent modules and locking them with bolts. The entire furnace roof can be adjusted when installing on the top of the furnace wall. The module is hoisted, which is convenient for hoisting and high installation efficiency.

(2) The surface of the furnace roof is sprayed twice with paint, which improves the surface strength of the furnace roof, enhances heat radiation and has a good energy-saving effect. To ensure the service life of the furnace top, the installation process is reasonable.

(3) The compression density of the fiber blanket between the modules is detected by the comparison method to ensure the sealing and working efficiency of the furnace roof, and at the same time, it can effectively prevent the structure from falling off.

Description of drawings

Fig. 1 is a structural schematic diagram of a steel structure in a furnace roof installation process according to the present invention.

Fig. 2 is a structural schematic diagram of fiber blanket connection in a furnace roof installation process of the present invention.

Fig. 3 is a schematic diagram of the connection structure of the steel structure in a furnace roof installation process according to the present invention.

Fig. 4 is a schematic diagram of a furnace roof installation structure in a furnace roof installation process according to the present invention.

detailed description

The invention discloses a furnace roof installation process, which is specifically as follows:

(1) Hoist several strip-shaped modules 7 that have been manufactured and place them side by side on the furnace wall. The modules 7 include a steel structure 8 and a fiber module 9 fixed at the lower end of the steel structure 8; as shown in Figure 1, the steel structure 8 It includes a pair of C-shaped steel 1 arranged opposite to each other along the long axis direction, a steel plate 3 connected to the C-shaped steel 1, and several square steels 2; among them, a number of through holes 4 are uniformly arranged on both sides of the C-shaped steel 1 along the long-axis direction; the fiber module 9 is formed by compressing several layers of fiber blankets arranged along the long axis direction;

(2) As shown in Figure 2, choose a fiber blanket 10 with the same length as the fiber module 9, and fold it so that its width is the same as the height of the fiber module 9, and apply glue on the folded overlapping surface; then complete the folding The fiber blanket 10 is placed vertically and aligned between adjacent fiber modules 9, and is fixed on the fiber module 9 with stainless steel pins 11;

(3) As shown in Figures 3 and 4, after the fiber blanket 10 is fixed, the modules 7 are aligned along the long axis and perpendicular to the long axis, and the through holes 4 on the end faces of the adjacent C-shaped steel 1 are also aligned. , and then use several bolts 5 to pass through the through holes 4 of the end faces of the adjacent C-shaped steel 1 in turn, and tighten and tighten along the assembly direction of the module 7, and then lock them with nuts 6 after tension;

(4) Check the compression density of the fiber blanket 10 between the modules 7 by comparison method. The density of the fiber module 9 is 128kg/m ³ . By observing that the density of the fiber blanket 10 between adjacent fiber modules 9 is greater than that of the fiber module 9 itself When the density is up to the standard; when the inspection is up to the standard, the paint is sprayed twice on the furnace top surface, with an interval of 6 hours, and the heating furnace can be ignited 12 hours after spraying.

The basic principles and main features of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (3)

1. a furnace roof mounting process, is characterized in that: described mounting process is specific as follows:

Be placed on side by side on furnace wall by the module hoisting of the some strips completed, described module comprises steel construction and is fixed on the fibre module of steel construction lower end; Described steel construction comprises a pair C-type steel be oppositely arranged along long axis direction, the steel plate connecting C-type steel and some square steel; Described C-type steel arranges some through holes along uniform on the both sides end face of long axis direction; The tapetum fibrosum compression that described fibre module is arranged along long axis direction by some layers forms;

Select the tapetum fibrosum that length is identical with fibre module length, and folding make its width identical with the height of fibre module, wherein on the face of coincidence of a folding, spreading glue is fixed; Then the tapetum fibrosum folded is vertical and alignment is placed between adjacent fiber module, and is fixed on fibre module with stainless pin;

After tapetum fibrosum fixedly completes, each module all to be alignd setting along long axis direction and perpendicular to long axis direction, now the through hole of adjacent C shaped steel end face also aligns, then the through hole of some screw bolt passes adjacent C shaped steel end faces is used respectively, and along the fastening tension in assembled direction of module, after tension, pass through nut check;

Check the pressed density of tapetum fibrosum between each module, after inspection is up to standard, carry out spray painting on furnace roof surface, after spraying, 12h heating furnace can be lighted a fire.

2. a kind of furnace roof mounting process according to claim 1, is characterized in that: in described step (4), twice spray painting is carried out on furnace roof surface, and twice interval time is 6h.

3. a kind of furnace roof mounting process according to claim 1, is characterized in that: in described step (4), between each module, the pressed density of tapetum fibrosum is detected by method of comparison, the density of fibre module is 128kg/m ³, detect up to standard when being greater than fibre module self pressed density by the tapetum fibrosum density of observing between adjacent fiber module.