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Quartz ore smelting heat energy recycling technology

A technology of quartz ore and process technology, which is applied in the field of quartz ore smelting heat energy recovery and utilization process, can solve the problems of long cooling time of molten body, potential safety hazards, and waste heat waste, so as to improve production safety, improve heat energy utilization rate, and improve The effect of production efficiency

Inactive Publication Date: 2014-08-27
NANJING UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are three problems: (1) the cooling time of the molten body is long (36 hours in winter and 72 hours in summer), and the efficiency is not high; (2) the waste heat is seriously wasted; (3) the high-temperature molten body is placed in the open air, which is safe Hidden danger

Method used

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  • Quartz ore smelting heat energy recycling technology
  • Quartz ore smelting heat energy recycling technology
  • Quartz ore smelting heat energy recycling technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Put 3~5 quartz melts just out of the furnace (infrared thermometer test is 1800-1850 o C), the material is discharged onto the carrying platform 2 respectively, and each carrying platform 2 (quartz melt) on the guide rail is separated by about 2.0 meters, and is driven by the transmission power and control system to move to the heat exchange chamber 1 successively. In the heat exchange chamber 1, the moving speed of the carrying platform 2 is controlled at 1 m / hour (at this time, the temperature of the quartz melt removed from the heat exchange chamber 1 is controlled at 500° C.). When the water flow in the pipeline in the heat energy exchange chamber 1 is 5L / s, the temperature of the hot water used to clean the quartz ore can be stabilized at 70 o C or so. Utilize the hot water that comes out from heat energy exchange chamber 1, carry out the washing process to ore, after finishing washing, ore temperature is 50 o C or so. Open the crawler conveyor belt 4 of 3 paral...

Embodiment 2

[0038] Put 3~5 quartz melts just out of the furnace (infrared thermometer test is 1800-1850 o C), the material is discharged onto the carrying platform 2 respectively, and each carrying platform 2 (quartz melt) on the guide rail is separated by about 2.0 meters, and is driven by the transmission power and control system to move to the heat exchange chamber 1 successively. In the heat exchange chamber 1, the moving speed of the bearing platform 2 is controlled at 1 m / hour. When the water flow in the pipeline in the heat exchange chamber 1 is 3L / s, the temperature of the hot water used to clean the quartz ore can be stabilized at 80 o C or so. Utilize the hot water coming out from the thermal energy exchange chamber 1 to carry out the process of washing the ore, and the temperature of the ore after washing is 65 o C or so. Open the crawler type conveyor belt 4 of 3 washed quartz ores in parallel, and spread the washed ore on the conveyor belt in a single layer, control the mo...

Embodiment 3

[0044] Put 3~5 quartz melts just out of the furnace (infrared thermometer test is 1800-1850 o C), the material is discharged to the carrying platform 2 respectively, and each carrying platform 2 (quartz melt) on the guide rail is separated by about 2.0 meters, and is driven by the transmission power and control system to move to the heat exchange chamber 1 successively. In the heat exchange chamber 1, the moving speed of the bearing platform 2 is controlled at 1 m / hour. When the water flow in the pipeline in the heat exchange chamber 1 is 2L / s, the temperature of the hot water used to clean the quartz ore can be stabilized at 85 o C or so. Utilize the hot water coming out from the heat energy exchange chamber 1 to carry out the process of washing the ore, and the temperature of the ore after washing is 70 o C or so. Open the crawler conveyor belt 4 of 3 parallel washed quartz ores, and spread the washed ore on the conveyor belt in a single layer, control the moving speed of...

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Abstract

The invention provides a quartz ore smelting heat energy recycling technology which aims at recycling and comprehensive utilization of heat energy during the quartz ore smelting process. The quartz ore smelting heat energy recycling technology is mainly composed of below links: using a quartz smelting body transport system to transport high temperature quartz smelting bodies to a heat energy exchange room, and then transporting the quartz smelting bodies to the heat energy exchange room from entry of the quartz smelting bodies into the heat energy exchange room until the time that temperature of the quartz smelting bodies reaches below 500 degree centigrade; using a water scrubbing quartz ore transport system to convey water scrubbing quartz ore along a moving direction opposite to the moving direction of the quartz smelting bodies at a speed of 0.01-0.1m / s; using an air fan to bring heat of the high temperature quartz smelting bodies to the water scrubbing quartz ore, rapidly drying the water scrubbing quartz ore, heating the water scrubbing quartz ore to high temperature, and simultaneously accelerating cooling of the quartz smelting bodies; arranging a water heat exchange pipeline which enables water to be 1-5L / s in flow rate in the heat energy exchange room, enabling normal temperature tap water to form hot water or water vapor through heat exchanges, and using the hot water or the water vapor to clean the quartz ore so as to achieve cleaning effects better than cleaning effects of using the normal temperature water and facilitate removal of impurities. Simultaneously, the quartz ore after being cleaned by the hot water is easily dried and preheated.

Description

technical field [0001] The invention relates to a technology for recovering and utilizing quartz ore smelting heat energy. Background technique [0002] Quartz sand is quartz raw ore particles. The current basic process route for smelting quartz sand: first pickling and washing the quartz sand, then drying and removing fine powder impurities naturally, then melting at high temperature in the smelting furnace, and finally the molten body is naturally cooled in the open air. With regard to the current process technology (attached figure 1 ), there are mainly deficiencies in the following aspects: [0003] First, in the process of natural drying, it is usually spread on the ground, and the water in the washing process is removed by natural air drying and sun drying. This just has great dependence to natural weather, encounters sudden heavy rain or shower, often makes all previous efforts go to waste. [0004] Second, drying on the ground also introduces fine impurities on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00
CPCY02P10/25
Inventor 杨毅茆平王连军范柏超王赓
Owner NANJING UNIV OF SCI & TECH