In the past, the installation fibers of the furnace door were all fixed. The fibers which are sealed around the door of the structure are easily damaged, and are mostly damaged. Since the fibers are all fixed, it is very difficult to disassemble and install, and it is difficult to repair or repair the repair work. Obviously, the design of this structure is unreasonable. Therefore, the current large and medium-sized furnace door seals need to solve two problems: one is to develop a new sealing material, which is better than the refractory fiber; the other is to solve the problem of difficult maintenance with fiber seals.
1 Improve the fiber installation structure of the furnace door 1.1 The sealing fiber around the furnace door is not fixed because the fiber around the furnace door is the sealing part, and the surrounding fiber is bad first, and it usually breaks after several months of use. It is necessary to maintain the sealing function frequently, and it must be repaired well. This requires that the fiber around the furnace door can be easily disassembled and repaired. Therefore, the sealing fiber should not be fixed, and the loading and unloading maintenance is easy.
Maintenance and management work.
1.2 Fiber mounting structure around the furnace door The fibers on both sides of the furnace door are mounted flat in the sealing groove.
The upper and lower sealing fibers of the furnace door are installed in the sealing groove. This is easy to install and easy to compress without gaps.
2 furnace door fiber installation 2.1 installation of the furnace door intermediate fixed fiber see.
The fiber block reduces the run-to-heat loss of the door gap and saves fuel costs of several hundred thousand yuan or more per year.
Since the furnace door does not run fire, the temperature in the furnace is uniform, the heating rate is obviously improved, the heating time of the workpiece is shortened, and the productivity is greatly improved.
Reducing energy consumption and production costs are significant economic benefits.
Greatly improved the working environment and reduced the harm to the health of workers.
5 The conclusion is that the furnace door is steel structure on the top, bottom, left and right and the outside. The fiber does not push outward on these five faces. Only the flame from the furnace door is blown. a) The installation sequence starts from the lower left side of the furnace door until the up Right side fiber. After more than a decade of practice, this improvement has been successful.
The sealing fiber is installed.
(2) Lay a 20mm thick fiber on the bottom of the surrounding seal groove.
The fiber, (1) the effect of fixing the fiber after the improved needle-punch blanket 200mmX 4 is fixed and unchanged.
The installation sequence is installed from the bottom of the furnace door.
In order to ensure a gap of 200mm width under the furnace door, and to fix the fixed fiber, it is required to use a 200mmX200mmX2750mm rectangular tire in the sealing groove.
The tires are installed after the 200mm wide sealing fibers on the left, right and upper sides of the furnace door are installed.
2.2 Install the sealing fiber around the furnace door 2.2.1 See the preparation work before the installation.
1- furnace door sealing fiber 2 - furnace door fixed fiber furnace door sealing fiber installation 215mm size obliquely into the groove facing the 200mm sealing groove, close to the bottom of the groove and a side of the groove, aligned and flattened. It is required that the fiber is to be pressed on three sides in the groove (the bottom of the groove and the edge of the groove), and the three sides of the sealing fiber are finished one by one.
(4) Remove the tire and seal the fiber under the furnace door. The method of loading is the same.
2.2.3 Installation and Sealing Requirement The patient is required to have patience when loading the fiber. Carefully handle the fiber tightly and compactly, and there is no place for looseness and unevenness.
The purpose is to ensure that the fiber is tightly tightened. If it is not tightly fitted, the 215mm size can be appropriately increased to ensure that it is tightly tightened.
3 Experimental test The effect on the 7m heat treatment furnace door is very good.
The 12m trolley heat treatment furnace is also very good. This structure acts as a seal for the furnace door and is easy to maintain. At present, the use of refractory fiber as a sealing material is to solve the problem of difficult maintenance, especially partial disassembly. This structure solves this problem.
Block.
Then cut into 7 parts, each block of 42mmX 2.2.2 furnace door around the sealed fiber installation see.
Folding needle-punched blanket (fiber for furnace door sealing) 1-inch
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