Electric heating regeneration pretreatment device and electric heating regeneration pretreatment method for activated carbon

Abstract

The invention discloses an electric heating regeneration pretreatment device and an electric heating regeneration pretreatment method for activated carbon. The energy consumption for the thermal regeneration of activated carbon is high, and the loss of carbon is also large. An existing electrothermal activated carbon regeneration method is not applicable to the saturated activated carbon regeneration in the ozonation and biologically activated carbon technology. According to the electric heating regeneration pretreatment device for activated carbon disclosed by the invention, a feeding vessel is communicated with a central tube by an inclined channel; a heating device is arranged at the bottom of the central tube; a spiral blade and an inner tube are arranged in the central tube, and the spiral blade is fastened with the central tube; and the inner tube is communicated with an exhaust fan. The electric heating regeneration pretreatment method for activated carbon disclosed by the invention comprises the steps that a saturated activated carbon material enters the central tube from the feeding vessel and the inclined channel to carry out drying treatment; water vapor is discharged from the inner tube by the exhaust fan; the central tube rotates so as to carry out friction treatment on the saturated activated carbon material; and the saturated activated carbon material is continuously outputted to a regeneration device with the rotation of the spiral blade. According to the invention, physical adsorption substances of saturated activated carbon can be effectively removed, so that the saturated activated carbon regeneration efficiency can be improved.

Description

technical field [0001] The invention belongs to the field of activated carbon regeneration, and in particular relates to an activated carbon electric heating regeneration pretreatment device and method. Background technique [0002] At present, more and more water plants use activated carbon adsorption to carry out advanced treatment of water supply, and the ozone-biological activated carbon advanced water treatment technology is called the second-generation water purification technology for drinking water purification. The ozone-biological activated carbon technology adopts the combination of ozone oxidation and biological activated carbon filter. Its main purpose is to further remove organic pollutants, precursors of chlorine disinfection by-products and ammonia nitrogen after conventional treatment, and reduce BDOC and ammonia nitrogen in the effluent. AOC organic matter ensures the chemical stability and biological stability of the effluent from the water purification pr...

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Problems solved by technology

[0014] The purpose of the present invention is to address the deficiencies of the prior art, to provide an activated carbon electric heating regeneration pretreatment device, and to provide an activated carbon electric heating regeneration pretreatment method, before the saturated activated carbon is put into the electric heating regeneration furnace, the saturated activated carbon is pretreated treatment, so as to remove physical adsorption substances and greatly reduce the resistance of saturated activated carbon; the saturated activated carbon after pretreatment can be used for subsequent electrothermal regeneration of activated carbon to remove chemical adsorption substances and realize the separation of physical adsorption substances and chemical adsorption substances in the regeneration process Removal not only solves the problem that industrially saturated activated carbon, especially the saturated activated carbon produced by ozone bio-activated carbon technology, cannot perform stable low-voltage electric heating regeneration, but also reduces energy consumption, improves regeneration efficiency and economic benefits

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