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Closed coke quenching and heat energy recycling method and device

A closed-type technology for recovering heat energy, applied in the cooling of coke, coke oven, waste heat treatment, etc. It can solve the problems of restricting the widespread popularization of CDQ technology, heavy cost burden, high equipment investment and operating cost, and achieve coke quenching time. The effect of short, reduced equipment cost and low operating cost

Active Publication Date: 2015-12-23
湖州易辰光伏能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the equipment investment and operating costs of nitrogen cooling CDQ are relatively high, which brings a relatively heavy cost burden to the operation of enterprises and restricts the widespread popularization of CDQ technology.

Method used

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  • Closed coke quenching and heat energy recycling method and device
  • Closed coke quenching and heat energy recycling method and device
  • Closed coke quenching and heat energy recycling method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment is a coke quenching process scheme for airtight water spraying vaporization cooling, the system is as follows figure 1 shown. After the red coke is loaded into the coke drum 1, it is moved to the top airtight cover in the coke quenching tower (not shown in the figure) by the moving car 3, the top airtight cover 2 is lowered, and the outer edge sealing rings 9 are closed from both sides to complete The sealing of the coke tank. After opening the specific valve in the steam outlet pipe control valve 10, spray water to the red coke (not shown in the figure) in the coke tank through the top sealing cover water spray pipe 5 according to the flow rate calculated in advance, and the injected water vaporizes to produce The steam enters the steam storage tank 11 through the steam outlet pipe 7 . After spraying water at the top to a certain hour, stop the top water spraying and start to spray water from the bottom water spray pipe 6 . The water sprayed into the...

Embodiment 2

[0033] This embodiment is basically the same as Embodiment 1, except that the steam pressure in the coke tank is controlled at a gauge pressure of 0.40-0.45 MPa. The sealing ring in the outer edge sealing ring 9 adopts the mode arranged on the inner ring side of the outer edge sealing ring, such as image 3 The seal ring 16 on the inner ring side of the middle and outer edge seal ring is shown. The coke can overturning mechanism 4 is arranged on the coke unloading platform, and the mobile car 3 moves to the side of the overturning mechanism to overturn the coke can. After spraying water at the top to a certain hour, stop the top water spraying and start to spray water from the bottom water spray pipe 6 . The water sprayed into the coke tank from the top is steam condensed water, and the water sprayed into the coke tank from the bottom is residual ammonia water, sprayed until the coke temperature is 500-600 ° C, and then sprayed with steam condensed water. All water is heated...

Embodiment 3

[0035] This embodiment is basically the same as Embodiment 1, except that the sealing ring in the outer edge sealing ring 9 is arranged on the inner ring side of the outer edge sealing ring, and on the inner side of the lower part of the outer edge sealing ring and on the upper part of the protruding edge of the top airtight cover With the hybrid sealing method, the steam pressure in the coke tank is controlled at a gauge pressure of 0.55-0.60MPa. In addition, the water sprayed into the coke drum from the top is steam condensed water, and the water sprayed into the coke drum from the bottom is the mixed water of residual ammonia water and condensed water, sprayed until the coke temperature is below 500°C, and then sprayed with steam condensed water to the coke drum When the temperature of the coke in the furnace drops to 150°C, stop spraying water to complete the cooling of the coke and enter the coke unloading process. The pressure relief of the coke tank is realized through ...

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Abstract

The invention relates to a closed coke quenching and heat energy recycling method and device. The method includes a process for closing a coke tank filled with red coke, a water spraying vaporization cooling process and a coke discharging process after cooling. The device is composed of the coke tank, a top closing cover, a closing mechanism, a tank overturning mechanism, a water spraying system and a steam leading-out system. The top closing cover can be lifted up and down and is connected with the steam leading-out system. According to the closed coke quenching and heat energy recycling method and device, water is directly sprayed in a closed container for vaporization, so that the red coke is cooled quickly, steam capable of being used as a heat source or acting towards the outside is recycled, and meanwhile pollutants are prevented from being exhausted to the atmosphere; an outer edge sealing ring is used for closing the coke tank and the top closing cover capable of being lifted, so that coke quenching is achieved in the state of being isolated from the atmosphere, an opening of the coke tank is overturned up and down, and a coke containing tank can be used as a coke quenching tank at the same time, and action can be completely rapidly. The method and device have the advantages of being capable of recycling heat and not generating pollution. An efficient and low-cost coke quenching and heat energy recycling method and device are provided for coke quenching in the coking industry.

Description

technical field [0001] The invention relates to a method and device for cooling red coke and energy recovery in the coking industry, in particular to a method and a device for directly spraying water on red coke to vaporize the red coke in a closed container to cool down the coke, generate steam for recycling and prevent pollutants from being discharged into the atmosphere The utility model and the device belong to the field of energy, energy recycling and environmental protection. Background technique [0002] Coke is an important raw material in the iron and steel industry. The high-temperature coke (red coke) released from the coke oven needs to be cooled in a short time, that is, coke quenching. Red coke contains a lot of heat energy, if it can be recycled, it can save energy and reduce emissions at the same time. So far, the wet coke quenching method is mainly used in the open system to spray water to cool down. This method has simple equipment and fast coke quenching ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B39/08F27D17/00F22B3/00
CPCY02P10/25
Inventor 张书廷
Owner 湖州易辰光伏能源科技有限公司
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