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Air distributor system used in gas-solid heat exchange process and gas-solid heat exchange method

A technology of air distributor and thermal process, which is applied in the direction of heat exchanger type, direct contact heat exchanger, and treatment of discharged materials, which can solve the problem of uneven heat exchange between wind and high-temperature materials, and uneven air distribution of air distribution devices , low heat recovery efficiency and other issues, to achieve uniform cooling, avoid uneven cooling, and prolong the cooling process

Active Publication Date: 2019-10-22
CENT IRON & STEEL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide an air distributor system and a gas-solid heat exchange method used in the gas-solid heat exchange process to solve the problems of uneven air distribution and heat exchange between wind and high-temperature materials in existing air distribution devices. Inhomogeneity, low heat recovery efficiency, low solid temperature after heat exchange, etc.

Method used

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  • Air distributor system used in gas-solid heat exchange process and gas-solid heat exchange method
  • Air distributor system used in gas-solid heat exchange process and gas-solid heat exchange method
  • Air distributor system used in gas-solid heat exchange process and gas-solid heat exchange method

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Embodiment 1

[0040] A specific embodiment of the present invention discloses an air distributor system used in the gas-solid heat exchange process, which includes a wind cap 1, a circulating hot air inlet 2, a circulating hot air pipe 4, an air inlet 3, Air duct 5, gas-solid heat exchange device 6.

[0041] Specifically, the horizontal section of the gas-solid heat exchange device 6 can be in different shapes such as circular, square, trapezoidal, etc. The height of the gas-solid heat exchange device 6 can be determined according to the amount of high-temperature solid materials fed in during actual implementation, and the gas-solid heat exchange The inside of the thermal device 6 is provided with an insulating layer.

[0042] Specifically, the circulating hot air pipe 4 includes an annular part and a straight part.

[0043] Among them, the shape of the circulating hot air pipe 4 in the annular part is the same as that of the gas-solid heat exchange device 6, and is evenly arranged inside...

Embodiment 2

[0075] This embodiment provides a gas-solid heat exchange method for cooling high-temperature solid materials using the air distributor system in Embodiment 1 of the present invention, including the following steps:

[0076] Step 1, transporting the high-temperature solid material to the gas-solid heat exchange device 6 of the air distributor system;

[0077] Step 2, passing air from the air inlet 3 into the air duct 5;

[0078] Step 3, the air flows through the air duct 5 into the lower hood pipe 10 of each hood 1, and is discharged from the lower air outlet 12; the discharged low-temperature air exchanges heat with the high-temperature solid material to cool the high-temperature solid material;

[0079] Step 4, the air and the high-temperature solid material are heated after heat exchange, and the heated air is passed into the circulating hot air pipe 4 from the circulating hot air inlet 2 as circulating hot air;

[0080] Step 5, the circulating hot air flows through the ci...

Embodiment 3

[0086] to combine figure 1 , image 3 and Figure 4 As shown, the present embodiment adopts a circular gas-solid heat exchange device 6, and there are 5 hoods 1 in total, among which the hood 1 at the center is larger, and the other 4 hoods 1 are smaller, and the 4 smaller hoods 1 are evenly distributed. Distributed around the wind cap 1 of large size in the central position. First, the high-temperature granulated slag at 900°C enters the gas-solid heat exchange device 6, and the circulating hot air at 150°C and the air at 20°C enter from the circulating hot air inlet 2 and the air inlet 3 respectively, wherein the circulating hot air goes through the circulating hot air pipe 4, and the air Go through the air duct 5, and the two ways of air are respectively discharged from the upper air outlet hole 11 on the upper air cap tube 9 and the lower air outlet hole 12 on the lower layer air cap tube 10 and exchange heat with the high-temperature granulated slag, and the air is disc...

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Abstract

The invention relates to an air distributor system used in the gas-solid heat exchange process and a gas-solid heat exchange method, and belongs to the field of industry waste heat utilization. The problems that an existing air distribution system is uneven in air distribution, heat exchange between wind and high-temperature materials is uneven, the heat recycling efficiency is low, and the temperature generated after heat exchange is low are solved. The air distributor system comprises hoods, a circulation hot air pipe, an air duct and a gas-solid heat exchange device. High-temperature solidmaterials enter the gas-solid heat exchange device, circulation hot air and air are led into a circulation hot air inlet and an air inlet correspondingly, the hoods are evenly arranged at the lower portion of the gas-solid heat exchange device, the two-layer air outlet design is adopted in the hoods, the high-temperature solid materials sequentially exchange heat with upper-layer circulation hot air and lower-layer air, and stepped cooling is finished. By means of the air distributor system used in the gas-solid heat exchange process and the gas-solid heat exchange method, gas-solid uniform heat exchange can be achieved, stepped heat exchange recycling of high-temperature solid sensible heat through two paths of gas can be achieved, heat exchanging can be uniform, high-quality hot air canbe obtained, and the waste heat utilization efficiency can be better improved.

Description

technical field [0001] The invention relates to the field of industrial waste heat utilization, in particular to an air distributor system used in a gas-solid heat exchange process and a gas-solid heat exchange method. Background technique [0002] In the process of gas-solid vertical cooling, the air distributor system is commonly used for gas-solid heat exchange. The traditional system only uses air-cooled air as the unit heat exchange medium for heat exchange, and most of the air caps are designed with a single-layer cap head. At the same time The uniformity of air distribution is poor, which results in low utilization rate of high-temperature solid waste heat and poor cooling uniformity. [0003] At the same time, the hot air obtained after traditional cooling is discharged after heat exchange, and the air temperature after heat exchange is also about 100°C. The existing air distribution device has uneven air distribution, uneven heat exchange between wind and high-tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D15/02F28C3/10
CPCF27D15/02F28C3/10
Inventor 王锋王海风高建军万新宇张俊严定鎏周和敏齐渊洪林万舟
Owner CENT IRON & STEEL RES INST
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