Rotary kiln
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Rotary kiln is the main equipment in the production of cement clinker. Rotary kiln is widely used in metallurgy, chemical industry, construction, refractory materials, environmental protection and other industries. The rotary kiln is composed of a cylinder body, a supporting device, with gear wheel supporting device, driving device, a movable kiln head, kiln sealing device, coal dust pipe device etc.. The kiln body is sloping, the whole kiln body is composed of roller supporting device, and a wheel blocking device controlling the kiln body, transmission system, in addition to setting up the main drive, it is also equipped with auxiliary transmission device to drive the kin body to rotate and prevent the bending deformation of the kiln body in case of the main power source fault, kiln head and tail sealing device adopts advanced technology, to ensure the reliability of sealing.

Features of rotary kiln

      Advanced slide bearing, set up automatic temperature measuring device and electrical heating device, and equipped with option of rolling bearing.

      Hydraulic gear wheel device equipped with the advanced hydraulic control system.

      Using Dc motor or frequency variable motor to control rotational speed, reliable operation, efficient energy-saving

      The plate under box tire could be fixed, adjustable and floating,  it is of a simple structure, and convenient to maintain and replace.

      According to the different kiln, a variety of sealing solutions are optional, such as cylinder pressure tight end sealing, spring pressure tight end seal, heavy hammer graphite block seal, spring graphite block seal, fish scale labyrinth seal, axial labyrinth seal and the combination of the above methods, good adaptation and sealing effect to vibrating cylinder .

Working principle of rotary kiln

Materials enter the kiln fir calcination from the kiln end (the barrel of the high-end). Due to the inclination and slow rotation of cylinder, the materials roll along the circumferential direction and move along the axial direction (from high-end to low-end), to complete the process of decomposition and firing, after physical and chemical changes, clinkers finally enter the cooler by kiln hood. The fuel is sprayed into the kiln from the kiln head, and the waste gas ,after heat exchange with materials, are exchanged from the kiln tail.

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Figure1.structure of rotary kiln

1.Kiln head seal; 2.cooling pipe; 3.supporting device 1; 4.supporting device II; 5.cylinder; 6. supporting device with catch wheel; 7.catchr wheel travel switch device; 8.big gear device; 9.gear cover; 10.transmission device; 11.hammer type kiln tail sealing; 12.catch wheel piping system; 13. catch wheel oil pump station; 14.kiln hood.

Specification of rotary kiln

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      Advanced slide bearing, set up automatic temperature measuring device and electrical heating device, and equipped with option of rolling bearing.

      Hydraulic gear wheel device equipped with the advanced hydraulic control system.

      Using Dc motor or frequency variable motor to control rotational speed, reliable operation, efficient energy-saving

      The plate under box tire could be fixed, adjustable and floating,  it is of a simple structure, and convenient to maintain and replace.

      According to the different kiln, a variety of sealing solutions are optional, such as cylinder pressure tight end sealing, spring pressure tight end seal, heavy hammer graphite block seal, spring graphite block seal, fish scale labyrinth seal, axial labyrinth seal and the combination of the above methods, good adaptation and sealing effect to vibrating cylinder .



Materials enter the kiln fir calcination from the kiln end (the barrel of the high-end). Due to the inclination and slow rotation of cylinder, the materials roll along the circumferential direction and move along the axial direction (from high-end to low-end), to complete the process of decomposition and firing, after physical and chemical changes, clinkers finally enter the cooler by kiln hood. The fuel is sprayed into the kiln from the kiln head, and the waste gas ,after heat exchange with materials, are exchanged from the kiln tail.

3-回转窑表格en.jpg