An ammonia water waste heat boiler and process for recovering coke oven flue gas
A coke oven flue gas and waste heat boiler technology, which is applied to steam boilers, lighting and heating equipment, steam generation methods using heat carriers, etc., can solve the problems of environmental pollution, difficult economic benefits, energy waste, etc. , the effect of reducing boiler size and saving resources
Active Publication Date: 2016-03-02
WISDRI ENG & RES INC LTD
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Problems solved by technology
However, the temperature of 300°C is difficult to obtain significant economic benefits for conventional waste heat boilers. At present, coke oven flue gas is mainly discharged directly into the atmosphere, which causes waste of energy and pollutes the environment. Therefore, measures are taken Waste heat recovery and utilization of coke oven flue gas is of great significance to reduce energy consumption and promote sustainable development strategy
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[0013] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0014] like figure 1 As shown, an ammonia water waste heat boiler and process for recovering coke oven flue gas, including a liquid storage tank 8, a feed water pump 9, an economizer 1, an evaporator 2, a superheater 3, and a boiler body 14, the boiler body is vertical Boiler, the top of the boiler main body is equipped with a horizontal inlet flue 12, the bottom of the boiler main body is equipped with a horizontal outlet flue 13, the outlet flue is externally connected to the chimney, and the interior of the boiler main body is sequentially installed with a superheater, an evaporator, an economizer, and an economizer The outlet is connected to the inlet of the evaporator, the outlet of the evaporator is connected to the inlet of the vapor-liquid separator 5 through the inlet pipe arranged on the sid...
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The invention provides an ammonia water waste heat boiler and a technology recycling coke oven flue gas. The ammonia water waste heat boiler recycling the coke oven flue gas comprises an ammonia water mixing working medium power circulating system, a boiler main body and a chimney, wherein the boiler main body is a force circulating stand boiler, a horizontal inlet flue is arranged at the top of the boiler main body, a horizontal outlet flue is arranged at the bottom of the boiler main body, the chimney is connected outside the outlet flue, the ammonia water mixing working medium power circulating system is divided into a heat exchanging part and a power part, and the heat exchanging part is arranged inside the boiler main body. Ammonia water is used as a working medium, and the efficiency higher than a normal boiler can be achieved in a low temperature flue gas field. The ammonia water waste heat boiler and the technology can recycle and reuse the waste heat of the coke oven flue gas, the energy is saved, and the environment is protected.
Description
technical field [0001] The invention belongs to the technical field of recycling coke oven flue gas, and in particular relates to an ammonia water waste heat boiler and a process for recycling coke oven flue gas. Background technique [0002] During the working process of the coke oven, the coke oven gas used for heating is introduced overhead from the external pipeline, and the coke oven gas is sent to the basement of the coke oven after being preheated, and the gas is sent to the bottom of the combustion chamber through the lower nozzle to exchange with the waste gas. The air coming in from the shutter is combined for combustion. The burned exhaust gas enters the vertical fire channel of the downdraft through the crossing hole at the bottom of the vertical fire channel, and then passes through the regenerator, and after recovering part of the sensible heat of the exhaust gas by the checker bricks, it passes through the small flue, the exhaust gas exchange switch, and the s...
Claims
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IPC IPC(8): F22B1/18F22B31/08
Inventor 张佳佳盖东兴
Owner WISDRI ENG & RES INC LTD