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Closed type cooling and waste heat recovery device for sintering ores

A sintered and closed technology, applied in lighting and heating equipment, waste heat treatment, treatment of discharged materials, etc., can solve the problems of large changes and difficult project implementation, to eliminate interference, improve the efficiency of waste heat recovery, and improve the exchange rate. Effect of Heat Rate and Waste Heat Quality

Inactive Publication Date: 2018-07-20
INST OF MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vertical sinter cooling process has changed a lot from the original cooling process, and the project implementation is difficult and there are certain uncertainties

Method used

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  • Closed type cooling and waste heat recovery device for sintering ores
  • Closed type cooling and waste heat recovery device for sintering ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A closed sinter cooling and waste heat recovery equipment, including a material inlet, a material outlet, a fan, a conveying plate, an air circulation pipe and a cooling chamber, the cooling chamber shell is a closed shell, the conveying plate is inside the cooling chamber, and the conveying plate The sintered ore is transported from the material inlet to the material outlet, and the fan includes an induced draft fan and a blower;

[0026] There are 4 cooling chambers, namely the first cooling chamber, the second cooling chamber, the third cooling chamber and the fourth cooling chamber;

[0027] There is an air distribution hood under the cooling chamber, and an air collecting hood is connected above;

[0028] Starting from the end of the fourth cooling chamber, the air collecting hood above the cooling chamber is connected with the air distribution hood below the previous adjacent cooling chamber by an air circulation pipe, and an induced draft fan is provided;

[002...

Embodiment 2

[0036] A closed sinter cooling and waste heat recovery equipment, including a material inlet, a material outlet, a fan, a conveying plate, an air circulation pipe and a cooling chamber, the cooling chamber shell is a closed shell, the conveying plate is inside the cooling chamber, and the conveying plate The sintered ore is transported from the material inlet to the material outlet, and the fan includes an induced draft fan and a blower;

[0037] There are 4 cooling chambers, namely the first cooling chamber, the second cooling chamber, the third cooling chamber and the fourth cooling chamber;

[0038] There is an air distribution hood under the cooling chamber, and an air collecting hood is connected above;

[0039] Starting from the end of the fourth cooling chamber, the air collecting hood above the cooling chamber is connected with the air distribution hood below the previous adjacent cooling chamber by an air circulation pipe, and an induced draft fan is provided;

[0040]...

Embodiment 3

[0044] A closed sinter cooling and waste heat recovery equipment, including a material inlet, a material outlet, a fan, a conveying plate, an air circulation pipe and a cooling chamber, the cooling chamber shell is a closed shell, the conveying plate is inside the cooling chamber, and the conveying plate The sintered ore is transported from the material inlet to the material outlet, and the fan includes an induced draft fan and a blower;

[0045] There are 4 cooling chambers, namely the first cooling chamber, the second cooling chamber, the third cooling chamber and the fourth cooling chamber;

[0046] Starting from the end of the fourth cooling chamber, the air collecting hood above the cooling chamber is connected with the air distribution hood below the previous adjacent cooling chamber by an air circulation pipe, and an induced draft fan is provided;

[0047] The transmission plate is made of iron plates with the same shape and material. The thickness of the transmission p...

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Abstract

The invention discloses a closed type cooling and waste heat recovery device for sintering ores. The cooling and waste heat recovery device is characterized by comprising a feeding port, a dischargingport, fans, conveying plates, air circulating pipes and cooling chambers; and shells of the cooling chambers are in a closed type, the conveying plates are arranged in the cooling chambers, the conveying plates are used for conveying the sintering ores to the discharging port from the feeding port, and the fans comprise induced draft fans and air blowers. According to the cooling device for the sintering ores, a ring type cooling machine in the past is changed into the novel closed cooling device, a cooling system adopts a gradient heat exchange mode to achieve approximate countercurrent heatexchange, the interference of dynamic sealing is eliminated, the heat exchange rate and the waste heat quality are improved, the waste heat recovery efficiency is improved, energy is saved, primary screening can be carried out on the return sintering ores, and the industrial benefit is improved.

Description

technical field [0001] The invention relates to a sinter cooling and waste heat utilization system, in particular to a closed sinter cooling and waste heat recovery equipment. Background technique [0002] The iron and steel industry is a high-energy-consuming industry. About 15% of the country's total industrial energy consumption is steel energy consumption, while the effective utilization rate of energy in the iron and steel production process is relatively low, only about 30%. One of the largest energy-consuming processes in iron and steel enterprises is the energy consumed in the production of sintered ore, and its energy consumption can account for 10% of the total energy consumption of the entire iron and steel enterprises. Sinter cooling is an important process in steel production. During the cooling process, it is necessary to ensure that the quality of sinter remains unchanged, and at the same time recover as much waste heat as possible. At present, the energy uti...

Claims

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Application Information

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IPC IPC(8): F27D15/02F27D17/00
CPCF27D15/0206F27D17/004Y02P10/25
Inventor 魏小林潘利生刘鹏飞赵砣
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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