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Waste heat recovery system for circular cement production grate cooler

A technology of waste heat recovery system and grate cooler, which is applied in F28D heat exchanger and F27D waste heat utilization field, can solve the problems of insufficient clinker cooling degree, affecting the quality of cement products, and high clinker temperature, so as to avoid pipe bursting or damage , reduce energy consumption, and avoid the effect of tube explosion

Inactive Publication Date: 2015-11-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But the main problems existing in the existing grate cooler: insufficient clinker cooling degree, the clinker temperature at the clinker outlet is too high, higher than 200°C
The consequence is that the cement production process consumes more energy, and at the same time affects the quality of cement products.

Method used

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  • Waste heat recovery system for circular cement production grate cooler
  • Waste heat recovery system for circular cement production grate cooler
  • Waste heat recovery system for circular cement production grate cooler

Examples

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Embodiment Construction

[0050] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0051] A waste heat recovery system of a grate cooler for cement production, comprising a grate cooler, figure 1A grate cooler 4 for cement production is shown. The grate cooler 4 includes a kiln head cover 2, a grate cooler shell 3, a high temperature air outlet 5, a low temperature air outlet 6, a clinker outlet 7 and a fan 8, wherein the clinker rotates from the rotating The kiln 1 enters the grate cooler 4, and then transmits it in the clinker channel 9 in the grate cooler 4. The fan 8 supplies air to the grate cooler 4, and the temperature of the clinker is lowered by the wind, so as to reduce the temperature of the clinker during the transmission process. The clinker is cooled in the middle, and the cooled clinker is output through the clinker outlet 7.

[0052] The clinker from the rotary kiln 1 is transported in the clinker channel ...

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Abstract

The invention provides a waste heat recovery system for a circular cement production grate cooler. The grate cooler comprises a housing and a clinker channel, wherein a thermal insulation material is arranged between the housing and the clinker channel; waste heat recovery equipment is arranged in the thermal insulation material, and comprises a barrel; a heat exchange tube is arranged in the barrel; the barrel and the heat exchange tube are in a concentric circle structure. According to the grate cooler provided by the invention, sensible heat released by a clinker in a cooling machine in a fast cooling process can be fully absorbed; energy consumption of the clinker is reduced; the waste heat utilization quantity can also be effectively improved.

Description

technical field [0001] The invention relates to a heat recovery system of a grate cooler, in particular to a waste heat recovery system of a circular cement production grate cooler, belonging to the fields of F27D waste heat utilization and F28D heat exchangers. Background technique [0002] Grate cooler (referred to as grate cooler) is a main equipment in the cement production process. Its basic functions include: (1) Provide appropriate clinker cooling speed to improve cement quality and clinker grindability; (2) Increase the temperature of secondary air and tertiary air as much as possible, as combustion air, to reduce the firing system Fuel consumption; (3) Heating the waste heat air for waste heat power generation and coal grinding drying; (4) Crushing and cooling the clinker to the lowest possible temperature to meet the requirements of clinker transportation, storage and cement grinding. Require. The structure of the grate plate and the grate bed is the most importa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F27D15/02F27D19/00F24D3/00
CPCY02P10/25Y02P80/15
Inventor 程林杜文静崔峥
Owner SHANDONG UNIV
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