31results about How to "Reduce or even eliminate pollution" patented technology

The invention relates to the technical field of refuse incineration power generation and particularly discloses an environment-friendly device matched with efficient and pollution-free refuse incineration power generation and a using technology of the environment-friendly device matched with efficient and pollution-free refuse incineration power generation. On the basis of an existing refuse incineration power generation system, a pre-treatment system, a flue gas treatment system and a leachate treatment system are additionally arranged. The pre-treatment system comprises a scratching machine, a sorting system, a magnetic separator, a crusher and a dehydrator. The flue gas treatment system comprises a bag type dust collector and a wet type dust collector, and a slag outlet of the bag type dust collector is provided with a flue dust collecting system. A leachate adjusting pool is sequentially connected with a convectional biochemical-physicochemical treatment system, an electrocatalytic oxidation pool and a membrane biological reaction pool. Through the environment-friendly device matched with efficient and pollution-free refuse incineration power generation and the using technology of the environment-friendly device matched with efficient and pollution-free refuse incineration power generation, generation of dioxin precursors is greatly reduced or even eliminated, and therefore first, pollution is reduced, and second, waste treatment cost is reduced and the national emission standard can be reached. The environment-friendly device matched with efficient and pollution-free refuse incineration power generation has prominent innovation, the generating capacity is improved by more than 1.5 times, and the tough problem of environmental pollution is solved comprehensively and thoroughly.

A process for preparing microcrystal and bulk crystal of nitride by in-situ multi-step reaction in hydrothermal condition features that in constant temp and pressure condition, the raw materials are supplemented into reaction system continuously or multiple times for controlling the generation of crystal nuclears and the growth of crystals, and a novel reducer (hydrazine hydrate) is used to prevent the pollution of by-product to microcrystal and crystal. Its advantage is uniform granularity.

The invention relates to a dielectrophoresis flat osmotic membrane element, comprising a flat framework, electrodes and osmotic membranes, wherein the flat framework is made of ABS; the flat framework is internally embedded with electrodes that are horizontally distributed at intervals; the front and rear surfaces of the flat framework are provided with osmotic membranes through compression molding; a clean water opening and a wire outlet are formed in the flat framework; the clean water opening is communicated with a water channel inside the flat framework; the wire outlet is connected with the electrodes of the flat framework and used for leading out a wire to be connected with an external power source. By adopting the dielectrophoresis technology and utilizing the principle that dielectric polarization capabilities of solid particles and continuous phases on which the solid particles are suspended are different, the solid particles are pushed away from the electrodes or are adsorbed on the electrodes by the dielectrophoresis force, thus reducing or even eliminating the phenomena of membrane pollution and membrane blockage in the osmotic membrane process, prolonging the service life of the osmotic membrane, enhancing the transmission of the osmotic membrane and intensifying the osmotic membrane process.

The invention discloses a floating type multi-phase cut-off repose angle valve. The floating type multi-phase cut-off repose angle valve comprises a valve body. A valve element with a valve rod is arranged in the valve body in a rotating mode. Valve bases are arranged between the valve element and an upper flange and between the valve element and a lower flange respectively. The valve element comprises a feed port, a discharge port and a side opening communicated with the feed port. The width of the side opening is larger than the diameter of an inlet guide pipe. When the discharge port of the valve element is parallel to the outlet of the inlet guide pipe, the floating type multi-phase cut-off repose angle valve is in the opened state, powder enters the valve element through the inlet guide pipe and then flows to a lower flange liner tube to be discharged, and powder conveying is achieved. When the repose angle valve needs to be closed so as to cut off powder conveying, the valve rod is rotated, the valve element is made to rotate by 90 degrees, the discharge port of the valve element is converted to being relatively perpendicular to the outlet of an inlet liner tube from being parallel to the outlet of the inlet liner tube, the gas phase is cut off firstly through the valve bases and the spherical valve element, and dust raising is prevented. The powder is accumulated on the inner wall of the valve element when falling down from the inlet guide pipe; due to the unique repose angle characteristic of the powder, the powder is unceasingly accumulated till the outlet of the inlet guide pipe is closed through the powder in an inner cavity of the spherical valve element, and the powder is cut off.

The invention relates to a method for manufacturing a solar battery, comprising the following steps: (101), manufacturing and forming a PN junction; (102), depositing an anti-reflection film; (103), judging whether a technological chamber is needed to be cleaned or not, if so, performing the step (104), and otherwise, performing the step (105); (104), cleaning the technological chamber; and (105), manufacturing electrodes. In addition, the invention also relates to equipment for manufacturing the solar battery, comprising the technological chamber, an air intake device, an evacuating device, a PN junction forming module, a deposition module, a control module, a chamber cleaning module and an electrode manufacturing module. By adopting the method and the equipment for manufacturing the solar battery, the technological vacuum chamber is cleaned when judged to need cleaning without machine halt. Therefore, the method and the equipment for manufacturing the solar battery can effectively reduce and even eliminate the condition that attachments on the inner wall of the chamber fall off to cause pollution for a silicon wafer and can improve the production efficiency of the equipment.

The invention discloses a sustained and controlled release compound fertilizer and its preparation method. The compound fertilizer is a particulate fertilizer, the particulate fertilizer contains various nutrients, and surfaces of solid particles of each nutrient are coated with sustained and controlled release gummy films. The preparation method comprises the following steps: 1, respectively preparing the various nutrients: (1) crushing base raw materials of a single nutrient, (2) adding the crushed base raw materials to a high speed mixer, starting the high speed mixer, and adding the gummy material having a weight being 2-8% of the total weight of the base raw materials to the high speed mixer, fully stirring and mixing the base raw materials of the particles and the gummy material to form the gummy films on the surfaces of the base raw materials of the particles and make the nutrient have a microcapsule shape, and (3), respectively preparing other nutrients according to step (1) and step (2); and 2, preparing the sustained and controlled release compound fertilizer: sending the various microcapsule-shaped nutrients to a granulator, and granulating to mutually mix the various microcapsule-shaped nutrients and form the sustained and controlled release particulate fertilizer. According to the invention, the agreement of the nutrient release rate of the fertilizer and the plant nutrient absorption rate is improved, and the utilization rate is high.

The invention relates to a soybean oil oligomer and a preparation method thereof. The soybean oil oligomer is prepared from the following raw materials in percentage by weight: 90.9 percent of waste food processing oil, 4.1 percent of water, 1.4 percent of hydrogen peroxide solution and 3.6 percent of activated carclazyte. The preparation method comprises the following steps of: filtering, floating, and heating to 50 DEG C in a reaction kettle for reaction; then, spraying with an aqueous hydrogen peroxide solution, carrying out a thermal reaction, standing still, delaminating, discharging impurity wastewater at the bottom and increasing the temperature to 120-130 DEG C; adding the activated carclazyte, keeping the temperature, stirring, sampling and comparing colors until the temperature is not reduced any more; and stopping temperature retaining and filtering to obtain the soybean oil oligomer when the temperature is reduced to a temperature below 70 DEG C. The invention adopting the advanced hydration-oxidation method and the activated carclazyte absorption method has simple and convenient process operation and obvious floating and decoloring effects. The refined soybean oil oligomer obtained by using the method has high purity and is particularly suitable for producing the link stuff of various kinds of news ink.

The invention provides a concealed concrete filling elevation controller and an operating method thereof, which solves the problems of low efficiency and poor accuracy in controlling the height of concrete in the process of filling piles under the water and has the effect of quickly and accurately controlling the height of concrete in the process of filling piles under the water. The concealed concrete filling elevation controller adopts the technical scheme that a concealed monitor comprises a main controller and an underwater sealed probe, wherein the main controller is respectively connected with a power supply and a warning circuit; the main controller is connected with the output end of a signal processing circuit; a motor is arranged in the underwater sealed probe, and a rotating shaft of the motor is connected with a paddle; the motor is connected with the input end of the signal processing circuit; and when filled concrete touches the paddle, the motor is prevented from rotating by the concrete, a surge current signal output by the motor is transmitted to the concealed monitor, the warning circuit is operated, and the condition that the concrete is filled to the preset height is determined at the moment.

The invention discloses a water floating body. The water floating body comprises at least one hoisting floating tank on which a wood board layer is paved; a plurality of heavy structures for reinforcing are arranged in the hoisting floating tank; or the floating body comprises a plurality of hoisting floating tanks which are closely interconnected through an external structure; the wood board layers are paved on the hoisting floating tanks. The water floating body has the beneficial effects that the structure is simple, the cost is small, the applicable scope of water area is wide, and inland river, internal lake, coastal confined water area, coastal hidden water area, water area around coastal island and coastal water area apply.

The invention discloses a handheld underwater grouting pile top-surface elevation control early-warning device and method. The handheld underwater grouting pile top-surface elevation control early-warning device comprises a handheld alarm, a waterproof lead and an underwater closed probe. The handheld alarm is provided with a main controller, a power supply, a signal processing circuit and an alarm circuit inside, wherein the power supply, the signal processing circuit and the alarm circuit are connected with the main controller respectively. A motor is arranged in the underwater closed probe. When concrete is grouted, coarse aggregate rises to the designed elevation, the motor inside the underwater closed probe rotates in a resistant manner, and shoot-up current signals generated by the resistant rotation are connected to the handheld alarm through the waterproof lead to generate alarm signals. The handheld underwater grouting pile top-surface elevation control has the advantages of simple structure and convenience in operation and can be accepted by on-site constructors. Through test on the construction site, pile top elevation of the underwater grouting pile can be accurately controlled, within 5 cm, and control accuracy is remarkably improved as compared with that of conventional pile detection methods.

The invention discloses a reduction annealing furnace for continuous reduction and heat treatment of sheet metal strips. By utilizing the reduction annealing furnace, reduction descaling of hot-rolled strips or annealing treatment of cold-rolled strips can be continuously performed in a high-efficient, low-cost and high-quality manner. The reduction annealing furnace comprises a heating reductionsection furnace body, an intermediate transition section channel and a cooling section furnace body, wherein the heating reduction section furnace body comprises an inner furnace shell, an outer furnace shell and an intermediate heat insulation layer, a furnace chamber which is of a hollow square-shaped structure is formed by the furnace shells and the intermediate heat insulation layer, the strips are introduced into the furnace chamber after being opened by an uncoiler at the center of the furnace body, revolved for a plurality of circles through the guide of a guide roller table in the furnace chamber, then heated, reduced or annealed and then led out of the furnace body, and further enter into the cooling section furnace body via the intermediate transition channel, the cooling section furnace body is of a hollow square-shaped cooling chamber constituted by the multiple sections of housings, and the strips are revolved for the plurality of the circles in the cooling chamber, cooled in a non-oxidation manner and coiled into strip coils by a coiling machine. The reduction annealing furnace disclosed by the invention has the advantages of low equipment investment, small floor area, low production cost and good product quality.

The invention discloses a rail anti-torsion limit rail lower pad plate used for a fastening system. The fastening system comprises a rail (2), a bottom plate (3) and a rail lower pad plate (6). The rail lower pad plate (6) is positioned between the bottom plate (3) and the rail. The bottom plate is provided with a finite position piece. The lower rail pad plate comprises a base plate (60), whereinthe base plate comprises a set of mutually parallel opposite sides, wherein the mutually parallel opposite sides are provided with stopping protrusions (61) perpendicular to the base plate, and the stopping protrusions and the base plate form a groove structure. The limiting protrusion (61) is positioned between the rail pin and the bottom plate limiting member. The invention effectively reducesor even eliminates the lateral movement and torsional oscillation of the rail, so as to reduce or even eliminate the generation of the rail corrugation, reduce the noise and the environmental sound pollution, improve the ride comfort and eliminate the hidden trouble of the train operation. At the same time, the characteristics of simple structure and convenient installation and adjustment of the fastener system are retained, which is very suitable for ballastless and ballasted track lines.

The invention relates to nano sieve water treatment equipment and a technology. A stirring reaction area, a micro-nano bubble dissolution area, a nano sieve floatation area, a slag scraping system anda water production area are integrated in a box structure; a micro-nano bubble generation system is additionally arranged between the water production area and the micro-nano bubble dissolution areafor internal circulation of water treatment; indexes such as turbidity, a COD (chemical oxygen demand), total phosphorus and ammonia nitrogen of a water body are effectively reduced; and therefore, box equipment achieves functions of a small-sized movable sewage treatment plant.

The invention provides a non-metal material motor gearbox, comprising a gearbox body. The gearbox body is subjected to injection molding after a plastic raw material is mixed with a glass fiber; the plastic raw material is nylon or polyethylene terephthalate dialdehyde; and a mass ratio of the plastic raw material to the glass fiber is 7 to 3. The gearbox is made of plastic instead of aluminum, so that the manufacturing cost is greatly reduced. Furthermore, the plastic piece is easy to machine and produce in a large batch; and the production efficiency is improved.

The invention relates to a flat sheet membrane pool using novel DEP electrode. The flat sheet membrane pool comprises a pool body and multiple flat sheet membrane parts. The flat sheet membrane parts are arranged at intervals in the pool body, which is connected to a raw water input pipe and a concentrated water output pipe. The flat sheet membrane part comprises a sheet metal electrode subassembly, penetration membranes and a flat sheet framework. Front and rear surfaces of the flat sheet framework are provided with the penetration membranes, between which the sheet metal electrode subassembly is arranged. The sheet metal electrode subassembly comprises two electrode plates which are respectively connected to different output ends of an alternating current power supply and are mutually insulated. The electrode plates are an integrated sheet metal part. The flat sheet framework is provided with a producing water outlet of a producing water cavity for communicating the two penetration membranes. The producing water outlet of each flat sheet membrane part is connected with a producing water output pipe. The invention also relates to a membrane concentration system of the flat sheet membrane pool using the novel DEP electrode. The invention has advantages of low cost and no pollution. The membrane concentration system has advantage of stage treatment and can output produced water with different grades and different use purposes.