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 slow-controlled release compound fertilizer and a preparation method thereof. The compound fertilizer is a granular fertilizer, which contains various nutrients, and the surface of solid particles of each nutrient is covered with a layer of slow-controlled release colloidal film. Preparation method: 1) Prepare various nutrients separately: ①Crush the basic raw material of a single nutrient; ②Put the crushed basic raw material into the high-speed mixer and start the high-speed mixer; 2 to 8% colloidal material by weight, so that the basic raw materials of each particle and the colloidal material are fully stirred and mixed, and a colloidal film is formed on the surface of the basic raw material of each particle, which is in the shape of microcapsules; ③ According to steps ① and ②, prepare other types of Nutrients; 2) Preparation of slow and controlled release compound fertilizers: Send various microcapsule-shaped nutrients into a granulator for granulation, so that the nutrients in each microcapsule are mixed with each other to form slow and controlled release granular fertilizers. It improves the coincidence between the release rate of fertilizer nutrients and the absorption rate of plant nutrients, and has a high utilization rate.

The invention discloses a preparation method of a direct-pressure slow-release tea fragrance environmental protection art board that releases and absorbs odor molecules, comprising: 1) material selection: selecting tea tree wood materials as processing raw materials; 2) raw material processing: cutting tea tree wood materials or cut into processing units; 3) peeling: the processing unit in step 2) is subjected to peeling treatment, so that the bark content of the processing unit is controlled below 10%; 4) drying: the processing after step 3) is processed The unit is dried; 5) glue sizing: mix the processing unit after step 4) with the E0 grade environmental protection glue, and the mass ratio of the E0 grade environmental protection glue to the processing unit is 3-4%; 6) along the core: to step 5 ) process the processing unit after processing along the core so that it is controlled in the same arrangement direction; 7) billet assembly: pave and shape the processing unit after processing the core in step 6) and age to obtain a tea slab; 7) The pre-pressing treatment, hot-pressing treatment and cooling treatment are performed on the treated tea slab base to make a tea slab.

A rail torsion limiter for a fastener system. The fastener system includes a rail and an elastic block buckled on the lower jaw of the rail head of the rail. The elastic block is supported and positioned by a side panel fixed on a base plate under the rail. The rail The anti-torsion limiter includes a rail foot limiter clamped between the rail foot of the steel rail and the side panel for limiting the lateral movement and torsion of the steel rail. The invention adds a part to the existing fastener system, that is, the rail anti-torsion limiter, which is installed at the rail foot of the rail, and is used to restrain the rail foot of the rail, effectively restricting the rail foot The horizontal movement and torsional swing reduce the corrugation and squealing; at the same time, the fastening system retains the characteristics of simple structure and convenient installation and adjustment, which is very suitable for ballastless and ballasted track bed lines.

The invention relates to an environment-friendly wood fragrance board synthesized by utilizing waste circuit boards and plant fibers and a manufacturing process thereof. Among them, the environmentally friendly woody board adopts a three-layer structure. The first layer is the first plant fiber layer composed of plant fiber powder mixed with processing aid A, and the second layer is composed of waste circuit board powder mixed with processing aid B. The circuit board layer, the third layer is the second plant fiber layer formed by mixing plant fiber powder and processing aid A. The first plant fiber layer, the circuit board layer and the second plant fiber layer are laminated sequentially. The manufacturing process of environmentally friendly woody board includes: grinding and drying plant fibers and waste circuit boards; layered feeding and paving, pre-pressing and thickness determination, initial trimming, hot pressing, trimming, and thickness determination. The environment-friendly wood incense board of the invention can be nailed and sawed, has excellent mechanical properties and high waterproof performance. Using waste circuit boards and plant fibers as raw materials for environmentally friendly wood fragrance boards can fully recycle waste circuit boards and agricultural waste, and can also reduce the production cost of environmentally friendly wood fragrance boards.

The invention relates to an alkali-hydrogen peroxide method-based cooking catalyst and alkali-hydrogen peroxide method-based clean pulping process, which belong to the technical field of papermaking. The cooking catalyst mainly comprises the following raw materials in part by weight: 3 to 10 parts of chelant, 4 to 10 parts of magnesium sulfate, 7 to 15 parts of sodium silicate and 16 to 30 parts of urea; and the catalyst can lower the cooking temperature and pressure to enable that the cooking residual liquid keeps higher whiteness which brings convenience to cyclic utilization. The pulping process comprises the following step of: cooking the pretreated fiber raw materials by using alkali and hydrogen peroxide, wherein the cooking catalyst is added into the cooking liquor in cooking; the catalyst needed by each oven dry metric ton of pulp comprises 3 to 10 kg of the chelant, 4 to 10 kg of the magnesium sulfate, 7 to 15 kg of the sodium silicate and 16 to 30 kg of the urea. The cookingresidual liquid obtained by the process has a yellowish white color, and can be returned to the cooking equipment for the next cooking after solid impurities are removed; and when the cooking residual liquid is circularly utilized, the rinsing cost of the pulp is not increased, and the cost is low in cyclic utilization, so the alkali-hydrogen peroxide method-based cooking catalyst and the alkali-hydrogen peroxide method-based clean pulping process are favorable for saving energy and reducing emission.

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 relates to a gas bypass type boiler. It includes main body, funneled bunker set on top of main body, taper dry distillation tube which communicates with discharge hatch and closes to combustion layer of hearth. There is a dry distillation prick in dry distillation tube between which dry distillation room is formed. There is a rotate coke-pushing ram below dry distillation prick and an air chamber below coke-pushing ram. The air chamber has an airway with an air cap. The stove can decoke and denitride effectively to reduce atmospheric pollution made by coal combustion in boiler. And acid rain is avoided. At the same time, the collected sulfur and nitrogen is used as resource, which can both save expense of fathering air pollution and create fortune. Enormous social and economic benefit can be made. Cokes fallen from dry distillation room diffuse around. There are carbon, fire and ash from the top down. The ash will not be coking because there is no reducing gas in it. So it can be very easily discharged from ash expeller. The invention can be applied in kinds of boilers and kiln hoods in various tons.

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.