Energy-saving rotary kiln with long service life

A rotary kiln, long-life technology, applied in the field of rotary kiln, can solve problems such as refractory lining cracking, short motor life, heavy rotary kiln, etc.

Active Publication Date: 2013-04-17
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technical solution described in this patents allows for efficient thermal recycling at low cost while maintaining good efficiency. By allowing exhaust gases from the furnace pass into multiple sections where they are cooled before entering another section called the main body of the apparatus. These sections contain different materials like ceramics or metals inside them, reducing their own mass compared to traditional methods such as burning fossil fuels. Additionally, these techniques allow for effective reuse of resources when needed. Overall, this technology helps save money and improve environmental performance over conventional systems used throughout the world's industry.

Problems solved by technology

Technological Problem addressed in this patented patent relates to improving the efficiency and lifespan (the lengthening of cycle) of an oxygen combustion type arc hearth furnace (OXF). Current designs use traditional breech plugging techniques such as sliding sleeve valves and tungsten rod cathode ray tubular reactors, leading to increased maintenance costs and reduced operational performance compared to current design options like single ring roasts. Additionally, conventional reactor systems require large amounts of fuel and generate excess thermal energy waste products. Therefore, these issues limit the overall economic benefit of the OFOG technology.

Method used

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  • Energy-saving rotary kiln with long service life
  • Energy-saving rotary kiln with long service life
  • Energy-saving rotary kiln with long service life

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Embodiment Construction

[0055] The energy-saving and long-life rotary kiln of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0056] In the description of the present invention, it should be noted that the terms "center", "", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical The orientations or positional relationships indicated by "straight", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be const

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Abstract

The invention relates to an energy-saving rotary kiln with a long service life. The energy-saving rotary kiln with the long service life is divided into an intermediate-temperature section, a high-temperature section and another intermediate-temperature section from left to right along the axial direction of the rotary kiln, the high-temperature section of the rotary kiln comprises a kiln shell, a refractory lining and a circulation heat exchange system utilizing waste heat of the kiln shell, the kiln shell comprises an outer kiln shell and an inner kiln shell, an annular cavity chamber is arranged between the inner kiln shell and the outer kiln shell, the refractory lining is arranged on the inner surface of the inner kiln shell, and the circulation heat exchange system is connected with the annular cavity chamber. The energy-saving rotary kiln with the long service life has the advantages that the waste heat of the kiln shell can be recycled, the refractory lining is protected against being squeezed by stress of the kiln shell, the integral weight of equipment can be reduced, and effects of saving energy, reducing consumption and improving the operability of the rotary kiln can be realized.

Description

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Claims

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Application Information

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Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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