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Itinerant recovery system and method for sensible heat of discharged liquid calcium carbide

A recovery system and heat flow technology, applied in furnaces, waste heat treatment, furnace components, etc., can solve the problems of increasing plant area, poor recovery effect, and low investment, so as to improve production efficiency, shorten cooling time, and eliminate pollution. Effect

Active Publication Date: 2016-05-11
北京天蓝华兴能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of increasing the plant area, changing the existing production process, transforming or using new production equipment, and poor recovery effect in the existing method for recovering the sensible heat of calcium carbide, the present invention proposes a flow recovery system for the sensible heat of discharged liquid calcium carbide and The method can efficiently and quickly recover the sensible heat of calcium carbide. The biggest advantage is that the existing production process of calcium carbide is not changed at all, large production equipment such as calcium carbide pots are not modified, new equipment is not used, and the plant area is not increased. It only needs to integrate the recovery system with the existing one. The production system is connected in parallel, with low investment and high efficiency, so it is easy to realize

Method used

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  • Itinerant recovery system and method for sensible heat of discharged liquid calcium carbide
  • Itinerant recovery system and method for sensible heat of discharged liquid calcium carbide
  • Itinerant recovery system and method for sensible heat of discharged liquid calcium carbide

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Embodiment 1

[0031] like figure 1 As shown, in order to solve the problem of calcium carbide sensible heat recovery, the present invention provides a liquid calcium carbide flow recovery system for sensible heat. The system includes a calcium carbide furnace 1, a launder 2 and a calcium carbide pot 3. One end of the launder 2 is connected to the liquid outlet of the calcium carbide furnace 1. , the other end extends to the calcium carbide pot 3; the innovation of the present invention is: the system also includes a wind cover 4, an air duct 5, a heat-using equipment 6 and a recovery induced draft fan 70, and the calcium carbide pot 3 is provided with a wind cover 4, and the wind cover 4 The upper end is connected to the inlet of the air duct 5, and the outlet of the air duct 5 is installed with a recovery induced draft fan 70, and the air duct 5 is connected to the wind cover 4, the heat-using equipment 6, and the recovery induced draft fan 70 in turn; Convective heat exchange and heat tra...

Embodiment 2

[0035] like figure 2 As shown, the structure of the second embodiment is basically the same as that of the first embodiment. The difference is that in this embodiment, the windshield 4 includes a fixed windshield 40 and a movable windshield 41 arranged up and down, and the upper end of the fixed windshield 40 is connected to the windshield. Pipe 5 inlet, movable wind cover 41 is connected with lifting mechanism 42, and upper end stretches in the fixed wind cover 40, and the sealing between fixed wind cover 40 lower end and movable wind cover 41 upper end, in the present embodiment, lifting mechanism 42 is hoisting machine, A sealing structure 43 is arranged between the fixed wind cover 40 and the movable wind cover 41, and the effect of the sealing is to prevent the outside cold wind from entering and the hot wind from leaking out; 41 and the distance between the calcium carbide pot 3, thereby changing the induced air volume and controlling the induced air temperature to be s...

Embodiment 3

[0042] The structure of the third embodiment is basically the same as that of the second embodiment, the difference is: as figure 1 , 3 As shown, in this embodiment, the air duct 5 connected to the upper end of the fixed wind cover 40 forms a parallel recovery pipeline and a discharge pipeline through a tee, and the recovery pipeline is connected to the recovery valve 90, the heat-using equipment 6, and the recovery dust collector in sequence. 80. Recover the induced draft fan 70, and the discharge pipeline is connected to the discharge valve 91, the discharge dust collector 81, and the discharge induced draft fan 71 in sequence. The recovery induced draft fan 70 and the discharge induced draft fan 71 of this embodiment are two independent systems respectively, the recovery induced draft fan 70 is used for recovering the sensible heat of liquid calcium carbide, and the discharge induced draft fan 71 is used for discharging dust when the furnace opening and the furnace opening ...

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Abstract

The invention provides an itinerant recovery system and method for sensible heat of discharged liquid calcium carbide. The system comprises a calcium carbide furnace, a launder and a calcium carbide pot; and one end of the launder is connected with a liquid outlet of the calcium carbide furnace, and the other end of the launder extends to the position above the calcium carbide pot. A fan housing is arranged over the calcium carbide pot; the upper end of the fan housing is connected with an inlet of an air hose; an outlet of the air hose is connected with heat using equipment; and the heat using equipment is connected with a draft fan. The air hose is provided with a recovery valve. According to the itinerant recovery system and method for the sensible heat of the discharged liquid calcium carbide, heat exchange is conducted with the flowing calcium carbide through induced air, heat of liquid calcium carbide flow is absorbed, and other substances are heated through the induced air with the temperature raised. By means of the system and method, the sensible heat, with the temperature being 1000 DEG C or above, of the calcium carbide can be recovered without changing the existing production process, or increasing the number of calcium carbide pots, or increasing the plant area or increasing production equipment or devices, and the recovered heat accounts for approximately 50% of the whole sensible heat of the calcium carbide, so that significant energy conservation and emission reduction are achieved. Compared with natural cooling, by means of system and method, cooling time of the calcium carbide is greatly shortened, and calcium carbide production efficiency is improved.

Description

technical field [0001] The present invention relates to a system and method for utilization of calcium carbide waste heat, more specifically, a flow recovery system and method for sensible heat of discharged liquid calcium carbide. Background technique [0002] In the production process of calcium carbide, the temperature of liquid calcium carbide is about 2000 degrees Celsius. After it flows into the calcium carbide pot, it is gradually cooled and solidified from the surface to the inside. When the core is still in liquid state, it is taken out from the calcium carbide pot, cooled naturally to room temperature, and then transported to the crushing plant for crushing. [0003] In the above-mentioned traditional process of natural cooling, all the sensible heat of calcium carbide is lost to the atmosphere. But the liquid calcium carbide at 2000 degrees Celsius has a lot of heat energy. For this reason, patent 201410494945.3 proposes the method for reclaiming calcium carbide...

Claims

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Application Information

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IPC IPC(8): F27D17/00
CPCF27D17/004
Inventor 王世英
Owner 北京天蓝华兴能源科技有限公司
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