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Waste-heat utilization triple generation system for blast furnace slag water employing minter process

A technology of triple supply of slag flushing water, which is applied in the field of triple supply system for waste heat utilization of blast furnace slag flushing water, can solve problems such as blockage of heat exchangers and terminal equipment, failure of filtration system, failure of heating system, etc. Insufficient water source, high heat exchange efficiency and high efficiency of waste heat utilization

Active Publication Date: 2014-06-04
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the slag water contains a large amount of impurities, it is very easy to cause all heat exchangers and terminal equipment to be blocked, resulting in failure of the heating system
And when the heat exchanger has been used for a period of time, it can only be replaced due to serious fouling, which is expensive
In view of the impurities and suspended solids in the slag flushing water, if the conventional fine filter material is used for filtration, it is very easy to cause the slag particles to harden in the filter device and make the filter system invalid
If the conventional dosing method is used for chemical dosing, the cost will be huge due to the large amount of chemical volatilization at high temperature

Method used

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  • Waste-heat utilization triple generation system for blast furnace slag water employing minter process

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Embodiment Construction

[0022] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] see figure 1 , a triple supply system for waste heat utilization of blast furnace slag flushing water, which includes a granulation device 1 matched with the blast furnace, the outlet of the granulation device 1 is connected with the inlet of the slag water separation device 2, and the slag water The outlet of the separation device 2 is connected to the inlet of the sedimentation tank 3, the outlet of the sedimentation tank 3 is connected to the inlet of the sedimentation heat storage tank 5, and the outlet of the sedimentation heat storage tank 5 passes through the waste heat water supply pump group 7 and the filter device 8 in turn to exchange water. The first inlet of the heat exchange device 9 is connected, the first outlet of the heat exchange device 9 is connected with the inlet of the granulation storage tank 6, and the second inlet of the ...

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Abstract

The invention relates to a waste-heat utilization triple generation system for blast furnace slag water employing a minter process. The waste-heat utilization triple generation system comprises a granulating device, wherein the granulating device is orderly communicated with a slag-water separating device, a settling pond and a sediment heat storage pool, wherein the sediment heat storage pool is connected with a first inlet of a heat exchange device by virtue of a waste heat water supply pump group; a first outlet of the heat exchange device is communicated with a granulating reservoir; a second inlet of the heat exchange device is respectively connected with the outlet of a heating user and the first outlet of a refrigeration mechanism through heating water supply pump groups; the inlet of the heating user and the first inlet of the refrigeration mechanism are communicated with the second outlet of the heat exchange device; the second inlet of the refrigeration mechanism is communicated with the second outlet of the refrigeration mechanism by virtue of an indoor refrigeration user and a dehumidified blast user; the outlet of the granulating reservoir is communicated with the granulating device by virtue of the granulating water supply pump group. The system is applied to triple generation of heating, refrigerating or blast furnace dehumidified blasting, and is high in heat efficiency and stable in water quality.

Description

technical field [0001] The invention relates to a waste heat utilization system, in particular to a triple supply system for utilization of waste heat of blast furnace slag flushing water. Background technique [0002] Energy is the basis for human survival. my country has the world's second largest energy system, but its per capita energy resources are only half of the world's level, and its overall energy use efficiency is seriously low compared to developed countries. Facing this reality, the task of saving energy is urgent and arduous. As a pillar industry of the national economy, the iron and steel industry plays an important role in my country's modernization drive, but it is also a major energy consumer and polluter. It will generate a lot of waste heat and energy while consuming energy and promoting material transformation. At present, the recycling rate of waste heat and waste energy of iron and steel is quite low. For example, the waste heat of blast furnace sla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B3/08F27D17/00
CPCY02B30/52Y02P10/25
Inventor 彭小平朱少华赵金标丁煜
Owner WISDRI ENG & RES INC LTD
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