30results about How to "Small processing investment" patented technology

The invention relates to a slag gasifier for a pressurized fixed bed. The slag gasifier comprises a coal lock for intermittently taking coal from a bunker and feeding the coal into a pressurized gasifier container, a transition bin enabling the coal in the coal lock to be fed in the pressurized gasifier container conveniently, the pressurized gasifier container for combusting and gasifying carbon-containing solid fuels at a certain temperature and with certain pressure by virtue of a gasifying agent from a nozzle, a connection pup joint for gasifying operations of slagging, chilling, evacuation and the like, a chilling chamber for chilling and cooling molten slag and a slag lock for storing vitric slag particles and discharging the vitric slag particles to the outside by a cone valve. An operation method of the slag gasifier comprises the steps of adjusting the temperature of a raw gas outlet, gasifying carbon-containing solid fuels, adjusting the gasifying load of the gasifier, controlling the operation pressure of the gasifier, controlling the pressure difference between the connection pup joint and the gasifier, slag discharge of a slag discharging port and slag support operations, chilling and cooling molten slag, controlling water quantity of the chilling chamber to remove heat of the molten slag, storing slag particles and discharging the slag particles to the outside.

The invention provides a strip steel surface acid-free descaling complete device which meets the strip steel surface descaling. A steel strip undergoes treatment through supporting devices such as two groups of multi-roll toothed descalers, a green fabric dust-free polishing machine and an automatic balance steel brushing machine, so that oxide scale on the surface of a steel plate is thoroughly eliminated, and the requirements of cold rolling of strip steel and strip steel surface galvanizing are met. The strip steel surface acid-free descaling complete device has the advantages of being free of acid consumption, noise and dust and eliminating the pollution to the human body, the environment, devices and rivers caused by acid pickling. The strip steel surface acid-free descaling complete device does not consume coal power for heating and high-pressure water and is low in cost, small in investment and occupied space and good in comprehensive benefit.

A method for the treatment of coal dry distillation wastewater, which adopts unit combination technologies such as oil separation-cyclone air flotation-filtration-extraction dephenolization-rectification ammonia distillation-biological anoxic-SBR oxidation-CWPO oxidation-coagulation sedimentation, etc. Effectively remove tar, ammonia nitrogen, phenols and other organic pollutants in coal dry distillation wastewater. Among them, the oil removal rate of the cyclone air flotation unit reaches 93.8%, the volatile phenol removal rate of the extraction and dephenolization unit reaches 98.3%; the ammonia nitrogen removal rate of the rectification ammonia distillation unit reaches 95.8%. The technology of the present invention is mature, stable and reliable, and the treated coal dry distillation wastewater meets the direct discharge requirements of GB16171‑2012 in the Discharge Standard for Pollutants in the Coking Chemical Industry, and has popularization value.

A biological filler and its installation structure and method, wherein the biological filler includes: several membrane-hanging units arranged in a matrix; each membrane-hanging unit includes several skeletons and membrane-hanging meshes, and the several skeletons The cross forms the center of each membrane-hanging unit, and the membrane-hanging mesh threads are distributed on the skeleton from the center to the surroundings from dense to sparse, so that each membrane-hanging unit forms a spider web structure. The present invention also provides the installation structure and installation method of the above biological filler. The bionic filler in the present invention adopts a bionic spider web structure, which has the advantages of low material consumption, orderly density, fast growth of biofilm, and large amount of bio-adhesion, etc., and can be produced by textile methods, which can reduce production costs , Reduce investment; the installation structure of this kind of biological filler is simple, the installation method is convenient and quick, can ensure the spatial stability of the filler, can capture pollutants in water to a greater extent, and achieve higher sewage treatment efficiency.

The invention relates to a non-stratified oil pit harmless treatment method and an oil sludge fuel block prepared by the non-stratified oil pit harmless treatment method. The method comprises the following steps: screening homogeneous-phase oily sludge to remove solid wastes to obtain oily sludge; carrying out dehydration treatment on the oily sludge to obtain dehydrated oil sludge and oily wastewater, and carrying out oil-water separation on the oily wastewater to obtain waste oil and wastewater; carrying out sewage treatment on the wastewater; mixing the dehydrated oil sludge with waste oil to obtain primarily mixed oil sludge, adding an oil sludge modifier, and uniformly mixing to obtain pretreated oil sludge; the oil sludge modifier comprises the following components in percentage by mass: 66.5% of an auxiliary material, 15-18% of a curing agent, 5-7% of calcium oxide, 8.5-9.5% of bentonite and 1-2.5% of cement, the pretreated oil sludge is placed at the room temperature after being formed, and the oil sludge fuel block is prepared. Harmless, clean and resourceful treatment of the oil sludge in the non-layered oil pit can be achieved, and the content of heavy metal leached from the combustion product fly ash of the prepared oil sludge fuel block and the content of dioxin and other substances contained in the combustion product fly ash are extremely low.

The invention relates to an ore concentration technique for tin sulphide ore rough concentrate. The technique comprises the following steps of grinding of tin rough concentrate, sulfide flotation, cassiterite flotation, cassiterite foam flotation and tailing re-flotation. The ore concentration technique combines full ore grinding, sulfur flotation, tin flotation, table concentration and scavenging and is an ore separation method capable of sufficiently and effectively recovering valuable resources, such as valuable metal tin and sulphur (copper) elements, in tin rough concentrate and achieving separation and enrichment of the valuable resources under the condition that the mineral substance composition is not changed. By adoption of technique combining full ore grinding, sulfide flotation, sulfide detinning flotation, cassiterite flotation, cassiterite foam flotation, and table concentration and scavenging of tailings, concentration of the tin sulphide ore rough concentrate is perfected, and the recycling rate of tin metal is increased.

The invention discloses an oil-sludge separation and gasification recycling method. Harmless treatment and recycling of oily sludge are realized by technical coupling of oil-sludge reduction, drying and separating integrated treatment and high-temperature coal water slurry gasification. Defects of high power consumption, high secondary pollution, poor quality of separated oil and the like in a traditional oily sludge extraction process can be avoided. A multi-stage furnace is adopted for drying and dewatering of high-oil-content sludge and multi-stage fractional distillation extraction of gasoline and diesel, residual heavy oil and silt avoid complex and high-energy-consumption separation and can be directly subjected to high-temperature harmless gasification treatment, generated heat is utilized with synthesis gas serving as a carrier, and consequently energy utilization and recovery of effective oil components in oily sludge are realized. By separation and gasification coupled treatment through the multi-stage furnace, the high-energy-consumption oily sludge thermal treatment process realizes self-sufficiency of energy while generation of resources such as gasoline, diesel, synthesis gas and the like is realized, so that recycling and harmless treatment of the oily sludge are truly realized, and sustainable economic development is realized as well.

The invention discloses a recycling method of organic bentonite for organic wastewater treatment. The method comprises the steps of: putting the waste organic bentonite which adsorbs organic pollutants into a DC (Direct Current) electrolytic bath; adding methylbenzene, wherein the mass ratio of the methylbenzene to the waste organic bentonite is (1:0.1)-(1:0.8); adding a 10-20g / L sodium chloride solution, wherein the amount of the sodium chloride solution is 1 / 10-1 / 20 of that of the methylbenzene; applying direct current to the two poles of the electrolytic bath with electric potential gradient being 0.5-1V / cm; electrolyzing for 5-8 hours; stirring the mixture in the electrolytic bath at the rotation speed of 150-200 revolutions per minute during electroanalysis; carrying out precipitation and separation after the electroanalysis to obtain bentonite solid; distilling and condensing a liquid obtained after the separation of the bentonite solid to obtain methylbenzene and other organic matters; and applying electrode action on the organic bentonite to obtain the bentonite which can be used repeatedly. Wastewater treatment investment and secondary pollution caused by adsorption are reduced.

The invention is a fluidized bed type chromium slag pyrolysis harmless process, which is characterized in that: the biomass and the chromium slag are put into the high temperature fluidized bed pyrolysis furnace respectively, and the biomass is rapidly melted and pyrolyzed in the process And release a large amount of pyrolysis gas to reduce Cr(VI). At the same time, the pyrolysis residual carbon adheres to the surface of the chromium slag during the fluidization process to protect the reduced Cr(III) in the chromium slag from secondary oxidation. The chromium slag also effectively catalyzes the pyrolysis gas generated to avoid the generation of a large amount of highly polluting tar gas. Compared with the traditional pyrolysis process, this process greatly shortens the residence time, and can generate energy tail gas with high calorific value at the same time, avoiding the treatment and disposal of tail gas.

The invention relates to an anti-blocking compound fertilizer and a preparation method of the compound fertilizer; the anti-blocking compound fertilizer is prepared by coating molasses alcohol waste liquid concentrate on the surface of the compound fertilizer; the organic substances in a molasses alcohol waste liquid are fully used for covering the surface of the granulated fertilizer, so that the fertilizer salt base is avoided being separated out, and the double effects of enveloping and preventing blocking can be achieved; meanwhile, the mineral elements in the molasses alcohol waste liquid is fully used for preparing the fertilizer and can be absorbed by crops, so that the double effects of environmental management and refuse reclamation can be achieved; and the method opens a new way for the comprehensive treatment of the molasses alcohol waste liquid.

The invention relates to a regenerating method for an aqueous film-forming foam fire extinguishing agent, and mainly solves the problem that expired aqueous film-forming foam fire extinguishing agentis difficult to regenerate in the prior art. The regenerating method for the aqueous film-forming foam fire extinguishing agent comprises the following steps: placing a failed aqueous film-forming foam fire extinguishing agent in a reaction kettle; heating the failed aqueous film-forming foam fire extinguishing agent to be the temperature of 50-80 DEG C; adding an organic extracting agent while stirring; stirring for 30-60 minutes; and carrying out layering by standing to obtain an organic phase. By the technical scheme, the problem is solved. The regenerating method for the aqueous film-forming foam fire extinguishing agent can be used for regeneration of the aqueous film-forming foam fire extinguishing agent.