A rotary drum dryer fire box sealing device
A technology of sealing device and drying machine, which is applied in the directions of engine sealing, drying solid materials, drying, etc., which can solve problems such as poor sealing performance and achieve the effect of improving sealing performance
Active Publication Date: 2016-09-07
DORIGHT
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Problems solved by technology
[0003] In order to solve the problem of poor sealing performance of the existing two graphite block sealing devices, the present invention provides a graphite block sealing structure
Method used
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Embodiment Construction
[0017] figure 2 , Figure 4 , Figure 5 Among them, the guide block 2 is fixed on the annular bottom plate 1, which can be welded, screwed, or mixed.
[0018] Figure 7 There are two shapes of graphite blocks in the middle, 6 is graphite block A, and 7 is graphite block B; the two ends of graphite block A are flush with the side of the guide block, and the thickness of a length from both ends to the inside is the same as the thickness of the guide block; The lower parts of the two ends of the graphite block B are flush with the side of the guide block, and the upper part extends outwards against the upper surface of the guide block, and the extension part blocks the ends of the adjacent graphite blocks 7 and sticks to their upper surfaces.
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At present, there are two kinds of known graphite block-type firebox sealing devices, one is that the position of the guide is in the middle of the graphite block, and the other is that the position of the guide is at both ends of the graphite block; the former sealing structure is unreasonable, so the sealing performance It is not good; the latter kind of sealing structure is no problem, the main problem lies in the guide piece, this kind of guide piece is a three-dimensional shape, the structure is complicated, it cannot be made by mechanical processing method, and more than ten boards can only be welded together. The material is welded into a common guide. Due to the reason that the welding deformation is difficult to control, the air leakage gap of this sealing device is increased, and the sealing performance is not good; the shape of the guide block of the present invention is simple, and can be made by ordinary mechanical processing methods. The thickness of the guide block is half of the thickness of the graphite block. The three faces of the block are all sliding sealing surfaces; the two ends of the graphite block cross the guide block and fit closely, there is no gap for air leakage, and the best sealing effect is achieved. Compared with the existing two graphite block sealing devices, the sealing performance is better. more than doubled.
Description
technical field [0001] The invention relates to a carbon black production equipment, especially a sealing device for a fire box of a drum dryer. Background technique [0002] The rotary drum dryer is composed of a drum, a fire box, a supporting mechanism for supporting wheels and other components. Both ends of the rotating drum are supported by supporting wheels, and the fire box is wrapped around the rotating drum and placed in the middle. The two ends of the fire box are sealed with the outer surface of the drum to prevent the smoke in the fire box from overflowing, so as to achieve energy saving and environmental protection. The requirements for the sealing device of the firebox are good sealing performance and being able to adapt to the roundness defect of the drum. At present, there are two kinds of known graphite block type firebox sealing devices, one is that the position of the guide is in the middle of the graphite block; the other is that the position of the guid...
Claims
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IPC IPC(8): F16J15/16F26B25/00
Inventor 刘汝刚魏振文崔建波张凤岐
Owner DORIGHT