Online salt removing and discharging system and method of organic waste supercritical water treatment equipment

A technology of supercritical water and organic waste, applied in heating water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., to achieve the effect of strong operability and avoid device blockage

Active Publication Date: 2022-07-29
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an online desalination system and method for organic waste supercritical water treatment equipment for the above-mentioned deficiencies in the prior art , to solve the industrial demand for online continuous desalination and desalination of supercritical water technology, and at the same time realize the safe and effective control of the system

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  • Online salt removing and discharging system and method of organic waste supercritical water treatment equipment

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Embodiment Construction

[0035] The technical solutions of the present invention will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] In the present invention, unless otherwise specified, all the embodiments and preferred implementation methods mentioned herein can be combined with each other to form new technical solutions.

[0037]In the present invention, unless otherwise specified, all the technical features and preferred features mentioned herein can be combined with each other to form a new technical solution.

[0038] In the present invention, unless otherwise specified, percentage (%) or part refers to the weight percentage or weight part of the composition.

[...

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Abstract

The invention discloses an on-line salt removal and elimination system and method of organic waste supercritical water treatment equipment. A screw conveyor in a salt elimination section conveys salt on line to achieve a pressure reduction effect, a flash tank is used for flash evaporation desalination, and a condenser is used for condensing flash steam. And water-cooled jackets are arranged outside the salt elimination section spiral conveyor, the flash tank and the external spiral conveyor to cool and protect the equipment, and steam is generated at the same time. The control method comprises the steps of salt elimination section starting, salt elimination section starting and expansion pressure control. According to the invention, the problem of salt deposition in the supercritical water technology is effectively solved, and online desalination and salt elimination are realized.

Description

technical field [0001] The invention belongs to the technical field of desalination and salt discharge of supercritical water technology, and in particular relates to an on-line desalination and discharge system and method of organic waste supercritical water treatment equipment. Background technique [0002] Supercritical water refers to water with a temperature of ≥374.15°C and a pressure of ≥22.12MPa (that is, higher than the critical point of water). Compared with normal water, supercritical water has the unique properties of reduced density, reduced viscosity, increased diffusion coefficient, reduced hydrogen bond stability and number, and a dielectric constant much smaller than that of normal water, showing high diffusivity and good transmission. Qualitative non-polar solvent properties. In addition, when supercritical water participates in the reaction, unlike normal water, it is generally decomposed into ions to participate in the reaction. The free radicals in the ...

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Application Information

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IPC IPC(8): C02F1/06C02F101/30
CPCC02F1/06C02F2101/30C02F2303/10
Inventor 王树众张凡张熠姝段远望李紫成李建娜
Owner XI AN JIAOTONG UNIV
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