Slag waste heat recovery device

Abstract

The invention discloses a slag waste heat recovery device comprising a base. A water pump and a furnace body are arranged on the base. An inner cavity of the furnace body is connected with a heat exchange pipeline through vertical supports and transverse supports. An upper port of the heat exchange pipeline is connected with a feed port. The feed port is connected with a slag outlet of a box body. A rotating shaft is arranged in an inner cavity of the box body in a penetrating manner. The tip of the rotating shaft is connected with a motor through a belt. Slag smashing blades are arranged on the rotating shaft. Counter blades corresponding to the slag smashing blades are arranged on the side faces of the box body. A lower port of the heat exchange pipeline penetrates the bottom of the furnace body. The heat exchange pipeline comprises water pipes and connection pieces. The water pipes are connected through the connection pieces. The two ends of each water pipe are connected with a water outlet pipe and a water inlet pipe correspondingly. The water outlet pipe penetrates the upper end of the side face of the furnace body. The water inlet pipe penetrates the lower end of the side face of the furnace body and is connected with the water pump. The slag waste heat recovery device is simple in structure and capable of sufficiently utilizing slag waste heat and improving the boiler efficiency.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to a slag waste heat recovery device. Background technique [0002] Large-scale coal-fired industrial boilers are widely used, but due to miscellaneous coal sources, unstable coal quality, and generally high coal ash content, the amount of slag discharged from the boiler is large, and the slag discharge temperature is high. Since the direct slag discharge mode is generally used, the residual heat of the slag If it is not effectively utilized, it will directly affect the heat conversion efficiency of the boiler. At present, high-temperature slag is generally cooled by water, and a large amount of water used to cool the slag will be vaporized, resulting in large water consumption. Corrosion will increase the operating cost of the boiler. For this reason, we propose a slag waste heat recovery device. Contents of the invention [0003] The object of the present invention is to pr...

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Problems solved by technology

[0002] Large-scale coal-fired industrial boilers are widely used, but due to miscellaneous coal sources, unstable coal quality, and generally high coal ash content, the amount of slag discharged from the boiler is large, and the slag discharge temperature is high. Since the direct slag discharge mode is generally used, the residual heat of the slag If it is not effectively utilized, it will directly affect the heat conversion efficiency of the boiler. At present, high-temperature slag is generally cooled by water, and a large amount of water used to cool the slag will be vaporized, resulting in large water consumption. Corrosion increases the operating cost of the boiler. For this reason, we propose a slag waste heat recovery device

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