CN-121972496-A - Closed circulation hydroxyl radical medical waste treatment system and method

CN121972496ACN 121972496 ACN121972496 ACN 121972496ACN-121972496-A

Abstract

The invention relates to the technical field of medical waste treatment, in particular to a closed circulation hydroxyl radical medical waste treatment system and a method, comprising a box body for containing medical waste; the external hydroxyl radical strong oxidation reaction cabin comprises a sealed reaction cabin body, and an electrostatic adsorption net mechanism, a guide ring mechanism and a hydroxyl radical generator which are sequentially arranged in the sealed reaction cabin body from top to bottom, wherein an exhaust gas inlet communicated with a first gas outlet is formed in the bottom of the sealed reaction cabin body, and a second gas outlet communicated with the first gas inlet is formed in the top of the sealed reaction cabin body. The closed circulation hydroxyl radical medical waste treatment system can treat medical waste and realize waste gas advanced treatment.

Inventors

TONG XUGUI
YU XUEQIANG

Assignees

安阳茂隆循环科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260323

Claims (9)

1. A closed circulation hydroxyl radical medical waste treatment system is characterized in that: the box body is used for containing medical waste and is provided with a first feed inlet, a first air outlet and a first air inlet; The external hydroxyl radical strong oxidation reaction cabin comprises a sealed reaction cabin body, and an electrostatic adsorption net mechanism, a guide ring mechanism and a hydroxyl radical generator which are sequentially arranged in the sealed reaction cabin body from top to bottom, wherein an exhaust gas inlet communicated with a first gas outlet is formed in the bottom of the sealed reaction cabin body, and a second gas outlet communicated with the first gas inlet is formed in the top of the sealed reaction cabin body.
2. The closed circulation hydroxyl radical medical waste treatment system according to claim 1, wherein the guide ring mechanism is located above the hydroxyl radical generator or sleeved outside the hydroxyl radical generator, the guide ring mechanism is of a multi-layer annular baffle structure, the multi-layer annular baffle comprises an inner ring baffle and an outer ring baffle, the inner ring baffle and the outer ring baffle are arranged in a staggered mode along the axial direction of the hydroxyl radical generator, and if the guide ring mechanism is sleeved outside the hydroxyl radical generator, the inner ring baffle is larger than the outer ring baffle, and the outer ring baffle is fixed with the inner wall of the sealed reaction cabin.
3. The closed circulation hydroxyl radical medical waste treatment system according to claim 1 is characterized in that the electrostatic adsorption net mechanism comprises a base layer filter screen, an electrostatic adsorption layer and a hydroxyl radical strengthening layer which are sequentially overlapped and fixed from bottom to top, the base layer filter screen adopts a high-temperature-resistant corrosion-resistant metal filter screen, the mesh aperture is 10-20 mu m, the electrostatic adsorption layer adopts a honeycomb-shaped activated carbon fiber substrate, the surface of the electrostatic adsorption layer is loaded with an electrostatic generation module, the electrostatic voltage is 5-10kV, the hydroxyl radical strengthening layer adopts a nano titanium dioxide coating, the thickness of the coating is 50-100nm, and the electrostatic adsorption net is in linkage connection with a hydroxyl radical generator.
4. The closed circulation hydroxyl radical medical waste treatment system according to claim 1 is characterized in that a stirring device is arranged in the box body and comprises a stirring shaft, a plurality of layers of stirring paddles and a stirring driving device, wherein the plurality of layers of stirring paddles comprise an upper layer inclined paddle, a middle layer screw paddle and a lower layer bottom scraping paddle which are sequentially arranged from top to bottom along the stirring shaft, the upper layer inclined paddle forms an included angle of 30-45 degrees with the horizontal plane, the middle layer screw paddle is in a spiral shape, and the lower layer bottom scraping paddle is attached to the bottom of the box body.
5. The closed circulation hydroxyl radical medical waste treatment system according to claim 4, wherein a gas distribution device is arranged in the box body, the gas distribution device is communicated with the second gas outlet of the sealed reaction chamber body and is positioned above the multi-layer stirring paddles, and the gas distribution device comprises a gas distribution main pipe, a top surrounding gas distribution branch pipe, a downward gas injection nozzle and a fixed support.
6. The closed circulation hydroxyl radical medical waste treatment system according to claim 1, wherein a turbulent sleeve is arranged at the lower part of the sealed reaction chamber body, the turbulent sleeve is sleeved outside the hydroxyl radical generator and is coaxial with the turbulent sleeve, the turbulent sleeve is positioned below the guide ring mechanism, the waste gas inlet is positioned inside the turbulent sleeve, the turbulent sleeve is rotationally connected with the sealed reaction chamber body, the turbulent sleeve is connected with a turbulent driving device, and a plurality of fins are arranged on the inner wall of the turbulent sleeve in a staggered manner.
7. The closed cycle hydroxyl radical medical waste treatment system of claim 1 wherein the hydroxyl radical generator is an ultraviolet hydroxyl radical generator and the hydroxyl radical generator is coaxial with the sealed reaction chamber.
8. The closed cycle hydroxyl radical medical waste treatment system according to claim 1, wherein the bottom of the tank is further provided with a discharge port.
9. A closed cycle hydroxyl radical medical waste treatment process for use in a treatment system as claimed in any one of claims 1 to 8, comprising: placing medical garbage into a box body; the external hydroxyl radical strong oxidation reaction cabin generates gas containing hydroxyl radicals, the gas is conveyed into the box body, and the gas is contacted with medical waste in the box body; the waste gas generated in the box body enters an external hydroxyl radical strong oxidation reaction cabin, hydroxyl radicals are generated by a hydroxyl radical generator in the external hydroxyl radical strong oxidation reaction cabin, the waste gas is treated after being mixed with the hydroxyl radicals, and the treated gas is purified by an electrostatic adsorption net mechanism to obtain gas rich in the hydroxyl radicals; recycling the gas rich in hydroxyl radicals to the box body for treating medical waste.

Description

Closed circulation hydroxyl radical medical waste treatment system and method Technical Field The invention relates to the technical field of medical waste treatment, in particular to a closed circulation hydroxyl radical medical waste treatment system and a method. Background Medical waste contains a large amount of pathogenic microorganisms and harmful chemical substances, and if the medical waste is improperly treated, the medical waste is extremely easy to cause environmental pollution and disease transmission. The traditional medical waste treatment method, such as incineration, high-temperature steam sterilization and the like, has the problems of high energy consumption, easiness in secondary pollution and the like. The hydroxyl free radical (OH) is one of active substances with the strongest known oxidizing ability, has the oxidation potential as high as 2.8V, can be used for rapidly decomposing organic matters without selectivity, killing various pathogenic microorganisms (including bacteria, viruses and spores), thoroughly oxidizing peculiar smell molecules, and has no secondary pollution, wherein the final product is water, carbon dioxide and inorganic salt. Therefore, the method is applied to the instant treatment of medical waste and has remarkable advantages. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide a closed circulation hydroxyl radical medical waste treatment system and a method, which can treat medical waste and realize deep treatment of waste gas. The technical scheme includes that the closed circulation hydroxyl radical medical waste treatment system comprises a box body and an external hydroxyl radical strong oxidation reaction cabin, wherein the box body is used for containing medical waste, a first feed port, a first air outlet and a first air inlet are formed in the box body, the external hydroxyl radical strong oxidation reaction cabin is used for generating gas containing hydroxyl radicals and reprocessing waste gas in the box body, the closed circulation hydroxyl radical medical waste treatment system comprises a sealed reaction cabin body, an electrostatic adsorption net mechanism, a guide ring mechanism and a hydroxyl radical generator, the electrostatic adsorption net mechanism, the guide ring mechanism, the hydroxyl radical generator and the guide ring mechanism are sequentially arranged inside the sealed reaction cabin body from top to bottom, the electrostatic adsorption net mechanism is used for adsorbing dust particles in the gas, meanwhile, the concentration of the hydroxyl radicals in the gas of a second air outlet of the sealed reaction cabin body can be further enhanced, an exhaust gas inlet communicated with the first air outlet is formed in the bottom of the sealed reaction cabin body and used for receiving exhaust gas flowing back from the box body, and a second air outlet communicated with the first air inlet is formed in the top of the sealed reaction cabin body and used for conveying the gas containing the hydroxyl radicals to the inside the box body. As one implementation mode, the guide ring mechanism is arranged above the hydroxyl radical generator or sleeved outside the hydroxyl radical generator, the guide ring mechanism is of a multi-layer annular baffle structure, the multi-layer annular baffle comprises an inner ring baffle and an outer ring baffle, the inner ring baffle and the outer ring baffle are arranged in a staggered mode along the axial direction of the hydroxyl radical generator to form a zigzag ascending airflow channel, the airflow process is prolonged, the airflow disturbance is enhanced, the mixing efficiency and the reaction contact time of waste gas and the hydroxyl radical are improved, the waste gas deep sterilization and deodorization are realized, and if the guide ring mechanism is sleeved outside the hydroxyl radical generator, the inner diameter of the inner ring baffle is larger than the outer diameter of the hydroxyl radical generator, and the outer diameter of the outer ring baffle is fixed with the inner wall of the sealed reaction cabin. As an implementation mode, the electrostatic adsorption net mechanism comprises a base layer filter screen, an electrostatic adsorption layer and a hydroxyl radical strengthening layer which are sequentially overlapped and fixed from bottom to top. The base layer filter screen adopts a high-temperature-resistant corrosion-resistant metal filter screen, and the mesh aperture is 10-20 mu m, so as to be used for initially intercepting large-particle dust. The electrostatic adsorption layer adopts a honeycomb-type active carbon fiber substrate, and is loaded with an electrostatic generation module on the surface, wherein the electrostatic voltage is 5-10kV, and the electrostatic adsorption layer is used for efficiently adsorbing fine dust particles. The hydroxyl radical strengthening layer adopts a nano titanium dioxide coating, the thickness of th