Method for recycling and utilizing sodium chlorate production low-temperature waste heat

Abstract

The invention discloses a method for recycling and utilizing sodium chlorate production low-temperature waste heat, and relates to the technical field of heat recycling and utilization. The method isimplemented by the aid of a heating system, a preheating system and a waste heat recycling system. The heating system is used for carrying out heating reaction on raw materials and comprises a combustion device. The combustion device is fixed to the bottom of a bottom frame, flame holes are formed in the top of the bottom frame, the bottom frame is fixedly connected with a side of the bottom of anouter frame, a feed pipe is fixedly connected with the bottom of the outer frame, and a container vessel is fixedly connected with a side of the bottom of the inner wall of the outer frame; the raw materials can be delivered into the container vessel via the feed pipe in heating procedures, then the combustion device can be started, accordingly, flame can penetrate the flame holes, and the container vessel can be heated. The method has the advantages that the waste heat can be recycled and reused by the aid of the method, and effects of high heat recycling and utilization rates can be realized; the heating system, the preheating system and the waste heat recycling system are convenient to use, the waste heat can be sufficiently utilized, energy loss can be reduced, and the work efficiencycan be improved.

Description

Technical field [0001] The invention relates to the technical field of heat recovery and utilization, in particular to a method for recovering and utilizing low-temperature waste heat from sodium chlorate production. Background technique [0002] The chemical formula of sodium chlorate is NaClO 3 , Relative molecular weight 106.44, usually white or slightly yellow equiaxed crystals, salty and cool, soluble in water, slightly soluble in ethanol. It has strong oxidation in acidic solution. Oxygen is decomposed above 300℃. Sodium chlorate is unstable. It is easy to burn and explode when mixed with phosphorus, sulfur and organic matter. It is easy to absorb moisture and agglomerate. It is toxic. It is mainly used in industry. Used in the manufacture of chlorine dioxide, sodium chlorite, perchlorate and other chlorates. In the process of crystallization of sodium chlorate, it is necessary to heat and dry sodium chlorate. At present, vacuum cooling crystallization and vacuum evaporati...

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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a low-temperature waste heat recovery and utilization method for sodium chlorate production, which solves the problems of inconvenient use, low utilization rate of waste heat recovery, large space, and no heat preservation effect, resulting in serious waste of a large amount of energy , causing economic loss and reducing work efficiency

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