A kind of connection method of multi-hole rotary kiln and its air channel tank body and cylinder body
A technology of multi-hole rotary kiln and air duct groove, applied in the field of rotary kiln, can solve the problems that maintenance costs cannot be effectively controlled, rigid fixed connections are damaged, and the reliable operation of the whole machine is affected.
Active Publication Date: 2015-11-25
ZHONGYE-CHANGTIAN INT ENG CO LTD
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Problems solved by technology
However, the multi-hole kiln is a thermal equipment, and the temperature inside the equipment is very high when it is in operation, which will cause a large thermal deformation of the cylinder body, and damage will occur at the rigid fixed connection between the two under long-term use, which will affect the whole machine on the one hand. Reliable operation, while its repair and maintenance costs cannot be effectively controlled
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[0030] The core of the present invention is to propose a new connection method for the air channel groove body and cylinder body of the multi-hole rotary kiln, so as to overcome the disadvantages of the existing fixed connection method. This connection method is based on the functional characteristics that the air duct groove body is set on the outside of the cylinder and rotates synchronously. First, the air duct groove body and the cylinder body are radially separated to form an annular space to adapt to the thermal expansion generated during the working process of the cylinder body. The elastic connection is used to establish the connection between the air duct groove body and the cylinder body. The elastic connector can form elastic deformation, thereby absorbing the thermal expansion deformation of the cylinder body, and avoiding the thermal expansion phenomenon of the kiln body cylinder body from acting on the air duct groove body. Without loss of generality, this embodim...
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The invention discloses a porous rotary kiln which comprises a cylinder body of a kiln body and an air duct system; the ventilation space of the air duct system is formed by enclosing a circular air duct slot body and a cover body; the air duct slot body is sleeved on the outer side of the cylinder body and rotates synchronous with the cylinder body; the air duct slot body and the cylinder body are separated in a radial direction to form a circular space; the air duct slot body is connected with the cylinder body through a plurality of elastic connecting pieces; the elastic connecting pieces are arranged at intervals along the circumferential direction of the cylinder body. According to the porous rotary kiln with an optimized structure, the connecting mode between the air duct slot body and the cylinder body of the kiln body can be improved, the heat expansion deformation of the cylinder body can be absorbed, so that the heat expansion of the cylinder body of the kiln body does not act on the air duct slot body, and the connection reliability is effectively improved. On the basis, the invention also provides a connecting method between the air duct slot body and cylinder body of the porous rotary kiln.
Description
technical field [0001] The invention relates to the technical field of rotary kilns, in particular to a multi-hole rotary kiln and a method for connecting an air channel groove body and a cylinder body thereof. Background technique [0002] At present, rotary kilns are widely used in many production industries such as building materials, metallurgy, chemical industry, mining and environmental protection. Through mechanical, physical or chemical treatment of solid materials, they can provide the required materials for various industries. Among them, the porous rotary kiln has the characteristics of high thermal efficiency, small footprint, and convenient operation, and has been widely used in the above industries. [0003] During the working process, the material enters the barrel of the porous kiln from the feeding end, is roasted in the kiln and undergoes corresponding chemical reactions, and then is discharged from the discharging end. There are evenly distributed air inl...
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IPC IPC(8): F27B7/20
Inventor 田万一周慧玲
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD