JPS5866781A - Method of constructing furnace wall of industrial kiln - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to a furnace for an industrial kiln.

Currently, in industrial kilns, taking the atmospheric furnace for heating furnaces as an example, it has become common for a part of the furnace to be constructed with plastic refractories or castable refractories. The pouring construction method using claybond castable refractories eliminates the labor caused by the use of rammers, which was a drawback of conventional construction methods using large plastic refractories.
In terms of solving the problems and the low construction mts of 7tc, it can greatly contribute to the cost saving of construction work.

However, the curing time of clay bond castable itself is easily affected by various factors, and it takes about 10 hours to remove the frame.
After 24 hours of natural curing after removing the frame, the drying process, which takes approximately 120 hours, and the time spent on the front and rear work processes are much longer than the time needed for the passing of the material.
'rI/c, and construction Pk4i for plastic refractories! Another drawback is that it is more likely to explode or crack during drying due to the increased amount of water.

On the other hand, in this industry, the development of frameless construction methods using monolithic refractories has recently attracted much attention, and in addition to history, the development of kilns for the purpose of blue energy metals has also become an urgent issue. There is.

In view of the above-mentioned circumstances, the present invention completely eliminates the shortcomings and shortcomings of the above-mentioned pouring construction method using clay bond castable refractories, and also provides nine new furnaces in response to the above-mentioned development requests. The gist of this is that a monolithic refractory @I/
A wall is built by holding the molded body of C at the part on the furnace shell side and stacking it up, and the wall body is used as a formwork, and the molded body is formed with a hollow hole or by the piled up part. Hollow hole portion and/or furnace shell 111111 to be formed! Fill 1 part of 22PJ with filler. The filling material may be plastic of the same material as the molded body, or an unshaped refractory material such as castable, such as filling a hollow hole in a block with clay bond castable. There should be no difference in shrinkage and expansion during heating or when the kiln is in use, but it may be filled with other different materials and/or heat insulating materials, heat insulating aggregates, refractory materials, refractory furnace material scraps, etc. Alternatively, the Fi void may be used as a 15TS wall.

Molded objects made of monolithic refractories may be completely dried, but it is preferable to pile up the objects before drying, and although a formwork is not necessary, it is possible to use supporting hardware. It can also be held in the furnace shell. Nine holes are drilled in this molded body in the skin, hollow holes are formed in the connecting surface by combining the hollow grooves, or hollow holes and voids in the molded body are created by combining the molded bodies, the molded body and the furnace shell. The molded body itself absorbs the moisture of the filler filled in the Nibarabegin created between the wall and the molded body and the filler, as well as the elbow bodies, become more likely to adhere to each other even when there are no joints. At the same time, since the moisture content is lower than that of conventional products, drying time is shorter. By building an integrated furnace wall T-S by integrating the molded bodies by drying and curing, the mold framework is eliminated, the drying time is shortened, and the working environment is improved by light work and dust prevention. The aim is to make all the improvements.

Hereinafter, this will be explained in detail based on the t diagram.

In the figure, 1 is a molded product made of plastic refractories and castable refractories that has a hollow hole aft or a concave O in the opening surface and is lifted up before completion of drying. The size of the block can vary from a size that can be carried by a person to a size that is suitable for large-scale use due to the modest use of mechanical tools.

1' is a joint formed body, bl is a gap formed between the formed body 1.1' and the furnace wall 2', 2 is a warp on the outer surface of the furnace wall, 3 is an anchor bolt planted on the steel shell 2, The holder 4, which is made of tension metal or reinforcing metal such as a clip, is connected to the hollow hole b' formed by stacking the molded bodies 1 or the hollow hole b' formed by the concavity I4b, or to the furnace wall 2'! pm Iku b
Insulation material filled in l and k, 1rll! % aggregate, refractory materials, refractory furnace material scraps, monolithic refractories such as castable refractories, and 5 indicates insulating materials such as back lining insulation hoards.

In addition,#! In Figure 1 IAI, a molded body is held on fI3 wall iron skin 2 by tension metal fittings 3 planted, and the void b1 created by fitting the molded body l into a groove opening is completely filled with monolithic refractory material 4. Q3) is a modification of the method, in which the molded body 1 is pulled by the tensile hardware 3 set up on the furnace wall 2' having the heat insulating material 5 of the insulation board, and the horizontal links M are joined by the connecting molded body 1'. The gap with the furnace wall 2' is filled with monolithic refractory material.

Fig. 2 (At is the 111 cross section of 1 pigeon imaged volume, and the molded body 1 is held inside the furnace by the tensile metal fittings 3 set on the iron skin 2.
To prevent the 14t+ pc from falling over, fill the hollow hole d of the molded body 1 with a monolithic refractory, and fill the SI part b' of the molded body 1 and the steel skin 2 with a heat insulating material, etc. , (2) is a 1-1 sectional view of the prisoner.

181 indicates a companion made of a two-layer cast body 1, which holds the cast body 1 in the furnace with a long tensile metal snout 3.
In the furnace wall of the present invention having such a configuration, the molded bodies are integrated with each other by drying of the molded bodies and hardening of the filled amorphous refractory,
Here, the integrated furnace wall is automatically constructed.

Since the present invention has the above-mentioned configuration, compared to the existing clay bond castable refractory pouring construction method, the amount of cape-shaped monolithic refractory to be filled is small, so that it hardens and grows naturally. Since it takes only a short time and there is little water violet, there are almost no explosions or cracks caused by i%m heating.

Furthermore, by using frameless construction and filling hollow holes or voids with heat insulating material or monolithic refractories such as casterful refractories, the furnace wall can become a 1IiI+ refractory wall and a heat insulating wall. , it becomes possible to save energy in the furnace.

Other advantages brought about by the present invention are as follows: (1) Since there is no frame, there is no need for frame-related problems or the complicated work of de-cluttering.

(2) Construction efficiency can be increased by making a large molded body.

(3) The nine-dried root, which is the construction body of low-water violet, can be shortened, reducing the fuel consumption for drying and heating, and also shortens the time required for construction and construction, and for practical use. It can be done.

(4) If the undried molded bodies are stacked together in a casing, the molded composite shadow bodies are brought into close contact with each other, and dried together with a heavy-duty material to form a one-piece structure.

(5) It has M fire resistance and heat insulation properties and can be made into thin wall thickness, making it possible to use thinner materials.

(6) The work environment can be improved due to dust and noise.

[Brief explanation of the drawing]

The figures show the application of the present invention, ag1 diagrams A-B. Figure 2 A' is a plan view of the furnace wall of the FC of the present invention, second figure A'
. B is a thin sectional view. Brief explanation of symbols 1...Large molded body, a...Hollow hole, b...Concave flange,
2... Iron skin, 3... Tensile hardware or reinforcing hardware, 4
... Monolithic refractories, 5. Insulating materials, 6. Furnace wall foundation bricks. Inventor Sada Ichiyama Iris Inventor Setsu Hamaguchi Inventor Hamamatsu Blade Applicant Kurosaki Kiln! N Co., Ltd. Representative Takeshi Shiba Yama Yubuto/Ko A. Buchido layer A. Knee win B. Procedural amendment (method) % formula % 1. Indication of the case 1982 Patent Application No. 206393 2. Name of the invention Method for constructing furnace walls of industrial kiln 3. Person making the amendment 4 Agent Address Suginami, Tokyo No. 29-16, Koenji Minami-ku, Ward Name: Patent Attorney (5654) Gun Watanabe n 5. Date of amendment order: May 7, 1980. Date of dispatch: May 25, 1980. 6. Detailed explanation. 7. Contents of the amendment (1) On page 6 of the specification, line A-7, it is amended to read ``(a') J'' (1B) j. (B) Correct J to r(a)j. (3) Correct ``A''' to rBJ on page 8, line 4. (4) Correct rBJ on the 5th line of the same page to raJ. (5) Attach Figures A' and B of the attached drawings as attached. U24

Claims (1)

[Claims] Molded object 'f' made of monolithic refractory material with uneven parts and/or middle part t-V: While being lifted up, it is placed in the furnace from the furnace shell-wall to the inside of the furnace, and using a holder, it is necessary to do 4! By holding the furnace wall in place and drying it until it is completely dry, or by filling the hollow part and/or the gap with the solid wall of the furnace shell with monolithic refractory GL and drying it, it is possible to create an integrated structure. A method for constructing a furnace wall for an industrial kiln, characterized by: