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Cement rotary kiln outer wall waste heat recovery device

A technology of waste heat recovery device and cement rotary kiln, which is applied in waste heat treatment, lighting and heating equipment, furnaces, etc., and can solve problems such as high surface temperature, high temperature pollution, and waste of energy

Inactive Publication Date: 2015-10-07
PANZHIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat dissipation of the rotary kiln shell makes its surface temperature as high as 200-400°C. The factory uses large fans to cool the kiln body, which not only causes high-temperature pollution but also wastes energy.

Method used

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  • Cement rotary kiln outer wall waste heat recovery device
  • Cement rotary kiln outer wall waste heat recovery device
  • Cement rotary kiln outer wall waste heat recovery device

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] The waste heat recovery device on the outer wall of the cement rotary kiln includes the cement rotary kiln 3, the heat collector 2, the water inlet pipe 8 and the water outlet pipe 1. The heat collector 2 is arranged outside the cement rotary kiln 3, and there is a distance between the heat collector 2 and the cement rotary kiln 3. , the external water inlet pipe 8 and the water outlet pipe 1 are connected to both ends of the heat collector 2 respectively. The outer wall of the cement rotary kiln 3 rotates, and the heat collector 2 is stationary. Therefore, there should be a distance between the heat collector 2 and the cement rotary kiln 3 . The cold water enters the heat collector 2 through the water inlet pipe, and the waste heat from the outer wall of the cement rotary kiln 3 heats the cold water, and the heat of the cold water can b...

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Abstract

The invention discloses a waste heat recovery device for an outer wall of a cement rotary kiln outer wall, relates to the field of energy conservation in production of cement, provides a waste heat recovery device for an outer wall of a cement rotary kiln, and the waste heat recovery device can utilize the waste heat of the outer wall of the cement rotary kiln to heat water. The waste heat recovery device comprises the cement rotary kiln, a heat collectors, a water inlet pipe and a water outlet pipe, wherein the heat collector is arranged on the exterior of the cement rotary kiln, a distance is reserved between the heat collector and the cement rotary kiln, and the external water inlet pipe and the water outlet pipe are respectively connected with two ends of the heat collector. The waste heat recovery device disclosed by the invention can be additionally arranged on the exterior of the outer wall of the cement rotary kiln, and the waste heat of the outer wall of the cement rotary kiln can be utilized to heat the water.

Description

technical field [0001] The invention relates to the field of energy conservation in cement production, in particular to a waste heat recovery device for the outer wall of a cement rotary kiln. Background technique [0002] In recent years, my country's economy has developed rapidly, but this is at the expense of high energy consumption, which is an unsustainable development model. The cement industry is a large energy consumer (accounting for about 7.65%), and its thermal efficiency is only 30-50%. There is a huge waste of energy, and the energy lost through the surface of the rotary kiln accounts for about 11.96% of the total energy consumption. The heat dissipation of the rotary kiln shell makes its surface temperature as high as 200-400°C. The factory uses large fans to cool the kiln body, which not only causes high temperature pollution but also wastes energy. Therefore, it is of great significance to recover and utilize the waste heat on the outer wall of the rotary ki...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D17/00
CPCY02P80/15
Inventor 王能为叶长荣黄载春叶鹏丽
Owner PANZHIHUA UNIV