VOC waste gas efficient purifying furnace with electric heating wires conveniently replaced

Abstract

The invention discloses a VOC waste gas efficient purifying furnace with electric heating wires conveniently replaced. The VOC waste gas efficient purifying furnace comprises a furnace shell, a hearth of the furnace shell, heating assemblies arranged in the hearth and a drive power source electrically connected with the heating assemblies. The VOC waste gas efficient purifying furnace is characterized in that multiple assembly holes are formed in the side wall of the furnace shell; each heating assembly comprises multiple ceramic pipes corresponding to the corresponding assembly hole, wherein the ceramic pipes are transversely inserted in the furnace shell through the corresponding assembly hole, penetrate the side wall of one face of the hearth and are then inserted in the side wall of the other opposite face to be fixed; and the electric heating wires are wound around the ceramic pipes, cover plates covering the assembly holes are fixed to the furnace shell, two electric heating wire leading-out bars are arranged on each cover plate in a penetrating manner, the two ends of each heating wire are welded to the corresponding two electric heating wire leading-out bars correspondingly, and the electric heating wire leading-out bars are connected with the drive power source through wires. By means of the VOC waste gas efficient purifying furnace with the electric heating wires conveniently replaced, the convenience degree of replacement of the electric heating wires can be improved, the input cost is reduced, meanwhile, stability and high efficiency of work of the purifying furnace are ensured, and the purifying effect is greatly improved.

Description

technical field [0001] The invention relates to a high-efficiency purification furnace for VOC waste gas which is convenient for replacing electric heating wires. Background technique [0002] Volatile organic compounds are referred to as VOC for short. They are a kind of solvent commonly used in industrial production. After use, they are emitted into the atmosphere. This kind of gas will cause certain harm to the atmospheric environment and human health, so it needs to be decomposed into non-toxic and harmless gas through certain purification treatment technology and then discharged. Common methods include combustion method, adsorption separation method, biological treatment method And condensation recovery method, of which the combustion method is the most common. [0003] In the prior art, the first generation of simple VOC waste gas purification furnace has an air inlet at the bottom of the furnace body, and an air outlet at the top, and a number of seamless heat-resist...

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Problems solved by technology

However, the problems existing in the above-mentioned VOC exhaust gas purification furnace are: the structure of this purification furnace is very simple, the waste gas stays in the furnace for a short time, cannot be fully burned, and the purification efficiency is low; and the replacement of the heating wire will inevitably destroy the complete sealing Furnace shell, unnecessary material loss increases the cost of factory input

However, the existing above-mentioned VOC exhaust gas purification furnace has the following problems: the exhaust gas burns after contacting with the electric heating wire, and there is no barrier in the furnace to slow down the flow rate of the gas. Further, because the furnace shell is completely closed and the fiberboards are piled up, once the heating wire at the bottom is damaged, the furnace shell will be damaged at first, and then the fiberboard above it and the heating wire must all be taken out before it can be replaced. The operation is complicated, and the material loss is very large, and the cost is also increased

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