34results about How to "High capacity reduction rate" patented technology

The utility model discloses a flue gas outlet pipe which comprises an induced air cover and an induced air pipe. The flue gas outlet pipe is mounted inside a gasification incinerator, is suspended above a grate and is slightly deviated from a central position of the grate. A plurality of elongated holes are formed in the side walls of the induced air cover, and reinforcing ribs are arranged among the adjacent open holes. The flue gas outlet pipe has the advantage that the flue gas outlet pipe is favorable for outwardly delivering flue gas and flame which are generated in the gasification incinerator.

The invention provides a dehydration and refining method and system for aged oil. The dehydration and refining method comprises the following steps: (1) carrying out primary extraction on aged oil byusing a primary extractant, then carrying out solid-liquid separation to obtain a primary extraction liquor and a primary extraction residue, wherein the component of the primary extractant comprisesan oleophilic hydrophilic organic solvent with a boiling point of 100 DEG C or below; (2) recovering the primary extractant in the primary extraction liquor, carrying out oil-water separation on the residual liquid to obtain a first oil phase and a first aqueous phase; and (3) carrying out secondary extraction on the primary extraction residue by using a secondary extraction agent, and then carrying out solid-liquid separation to obtain a secondary extraction residue and a secondary extraction liquor containing a second oil phase, wherein the component of the secondary extractant comprises polycyclic aromatic hydrocarbon. The method has good dehydration effect, high crude oil recovery rate, short process time and high separation efficiency, and has obvious advantages compared with the prior art.

The invention discloses a method for preparing and using a strippable cellulose-based radioactive pollution decontamination agent, which is characterized by: a. modifying the pre-prepared cellulose ether by grafting; then using the prepared fiber The detergent was prepared from the ether grafted product. b. Spray the decontamination agent evenly on the surface of the radioactively contaminated material, dry at 20-60°C for 15-22 hours to form a film, and peel off the film to complete the decontamination process. The detergent provided by the invention uses cellulose with abundant resources as a raw material, has a simple preparation method, and has obvious decontamination effect, and can resist a certain dose of radiation and show easy peeling and good decontamination properties; further is , After decontamination, the solid waste can be biodegraded or incinerated, with a high capacity reduction rate, which is convenient for storage and solidification treatment, meets the requirements of sustainable development, and has great economic and social benefits.

The invention belongs to the technical field of low-and-intermediate level radioactive waste and relates to a thermal chemical treatment method for low-and-intermediate level radioactive waste for treating low-and-intermediate level radioactive organic combustible waste comprising radioactive substances generated by hospitals, scientific research institutions and nuclear power units, solving the problem of great deposit volume and difficulty of storage of the low-and-intermediate level radioactive waste, and achieving volume reduction and harmless treatment of the low-and-intermediate level radioactive waste. 0.1-1% of the purified radioactive substance smoke sucked by a power device is exhausted from a smoke air outlet, and 99-99.9% of radioactive elements are left in incombustible ash residues to be sealed uniformly and cured with cement, so that the processing course of the low-and-intermediate level radioactive combustible waste is finished. The volume reduction ratio of the low-and-intermediate level radioactive organic combustible waste reaches 97-99%. The method is reliable in principle, high in volume reduction ratio, good in curing effect, low in secondary pollution, friendly in application environment, low in investment and operation costs and energy-saving and environment-friendly, and has a good economical benefit and a wide market prospect.

The invention relates to a solid waste plasma gasification treatment device and method. The treatment device includes a plasma gasification furnace, a secondary combustion chamber, a condenser, a spray tower and a bag filter; Second combustion chamber, condenser, spray tower and bag filter. The plasma gasification furnace is vertically inserted with a liftable plasma torch on the top to gasify solid waste and produce a large amount of synthesis gas; the synthesis gas is fully burned in the secondary combustion chamber to remove organic pollutants in the flue gas, such as dioxin Ying et al.; the flue gas after combustion first passes through the condenser to cool down rapidly to avoid the generation of dioxins, and then remove the acidic substances in the flue gas. Finally, through the bag filter, it can ensure that the treated flue gas reaches the treatment target. The system of the invention utilizes plasma to rapidly raise the temperature, and has the characteristics of strong raw material adaptability, full combustion, and thorough removal of pollutants; it is suitable for treating various solid wastes.

The invention belongs to the technical field of middle-low radioactive waste treatment equipment, relates to a waste treatment device, in particular to a middle-low radioactive waste treatment device. The middle-low radioactive waste treatment device is used for treating organic combustible type waste which is generated in a nuclear power plant and contains a middle-low radioactive substance, and is also used for treating middle-low radioactive waste generated in a hospital, a plant, a research institution and the like, so that volume reduction treatment and innocent treatment of the middle-low radioactive waste are achieved, and the middle-low radioactive waste treatment device comprises a pyrolysis reactor, a combustor, a catalytic converter, a spraying water scrubber and a high-temperature resistant pipeline, and all the devices are communicated through the high-temperature resistant pipeline; the middle-low radioactive waste treatment device makes it convenient for sealing up and landfill treatment of the waste, the volume reduction rate exceeds 95%, and the nuclear radiation pollution and atmospheric environmental pollution can be eliminated; a mild thermolcatalytic degradation process is adopted; the middle-low radioactive waste treatment device is simple in structure, reliable in principle, high in volume reduction rate, good in solidification effect, application environmentally friendly, low in investment and operation cost, and good in environmental protection effect, and has a good economic benefit and a wide market prospect.

The invention discloses a method for muddy water dredging and in-situ efficient volume reduction and a device for achieving the method. A dredge pump (1), a two-stage serial hydrocyclone system (III), a coagulant mixing adding system (II) and a centrifugal hydroextractor (IV) are arranged on a dredge ship. The centrifugal hydroextractor is directly connected with the two-stage serial hydrocyclone system. Muddy water is drawn and dredged through the dredge pump (1) on the dredge ship and fed into the two-stage serial hydrocyclone system for concentration volume reduction treatment, concentrated underflow mud obtained after volume reduction is discharged into the centrifugal hydroextractor to be dehydrated, and overflow clear liquid is directly drained into water. Mud cakes obtained after dehydration are lightered to land to be treated, one part of dehydration filter liquor is reused in the coagulant mixing adding system (II), and the rest is directly drained to the water. The method for muddy water dredging and in-situ efficient volume reduction and the device for achieving the method are small in size, small in occupied area and high in solid-liquid separation efficiency, and effluent can be directly drained into the water.

The invention relates to a marine kitchen garbage treatment device. In the invention, an automatic control box controls a motor to be connected with a worm reducer so as to drive a blender in a machine body through a belt transmission device at one end of the machine body; the machine body above the blender is provided with a charging cover; the machine body is externally wrapped with an electricheat tracing belt; a discharging cover corresponding to the position of the blender is arranged on the side wall of the machine body; the machine body is internally provided with a filter screen; theinner cavity of the machine body is communicated with an induction unit through the filter screen and a three-way catalytic converter; the induction unit is connected with a suction inlet of a fan; and both the electric heat tracing belt and the fan are connected with the automatic control box. According to the invention, blending and strains are coordinated in the enclosed machine body to sufficiently digest the kitchen garbage; the mesophilic digestion environment in the machine body and the deodorization of the tail gas three-way catalytic converter are coordinately controlled to realize effective volume reduction and harmless treatment of the marine kitchen garbage; the device has the advantages of rational design and convenient and safe operation, so as to ensure that the volume reduction rate of the harmless treatment of the kitchen garbage is high and the tail gas discharge is pollution-free, therefore, the device is suitable for the marine kitchen garbage treatment.

The invention belongs to the technical field of intermediate- and low-level radioactive waste treatment and relates to an intermediate- and low-level radioactive waste treatment method. The intermediate- and low-level radioactive waste treatment method is achieved in an intermediate- and low-level radioactive waste treatment device and is used for treating organic combustible waste which contains radioactive substances and is generated by hospitals, factories, research institutions and nuclear power plants. The sludge volume reduction and the harmless treatment of the intermediate- and low-level radioactive waste are achieved. The sludge volume reduction rate is more than 95%. The difficulties of big deposit volume and difficult storage of the intermediate- and low-level radioactive waste are solved. Firstly, heating equipment is started, then a burner is started, then a spray water scrubber is started to carry out pre-treatment, then feedstock is carried out, the waste is pyrolyzed, burned, and experiences catalytic reaction, and finally, is purified and discharged. The process is simple in method, reliable in principle, high in sludge volume reduction rate, good in curing effect, environmentally friendly in application, low in investment and operation costs, energy-saving and environmentally friendly, and has a good economic benefit and a wide market prospect.