139results about How to "Comply with energy saving and emission reduction policy" patented technology

The invention discloses a recycled composite material for enhancing modified waste polypropylene by using a waste printed circuit board powder/glass fiber and a preparation method of the recycled composite material. The recycled composite material comprises the following raw materials in part by weight: 100 parts of waste polypropylene, 100-300 parts of waste printed circuit board powder, 5-15 parts of compatibilizer, 1-2 parts of antioxidant and 5-15 parts of alkali-free glass fiber. The preparation method comprises the following steps: mixing the waste polypropylene, the waste printed circuit board powder, the compatibilizer and the antioxidant according to a proportion; adding a blending material from a main feeding device of a double-screw extruder for smelting, wherein the rotating speed of a screw is 60 r/min; and adding the alkali-free glass fiber from a fourth processing area of the extruder according to a proportion and blending the alkali-free glass fiber with the smelt mixture; and carrying out extrusion, traction, cooling and particle dicing to obtain the recycled composite material of the modified waste polypropylene. According to the recycled material disclosed by the invention, the waste polypropylene can be effectively enhanced and toughened and the recycled composite material with excellent integrated performance is obtained; and in addition, the waste is fully utilized and energy economization and emission reduction are realized.

The invention relates to a single-fired glass ceramic composite brick and a production method. A blank of the ceramic brick is prepared from, by weight, 10-15 parts of clay, 0-5 parts of mineralizing agents, 0-10 parts of lithium china stones, 74-85 parts of tile-polished waste, 0-1.2 parts of peptizers and 0-0.5 part of reinforcing agents. The production method comprises the steps that the blank is processed through procedures of wet ball milling and spray drying and then processed through dry pressing to prepare a ceramic green blank; 2, the ceramic green blank is coated with a ground glaze after being dried and decorated through printing to form an overglazed color blank, and then microcrystalline glass frit dry grains are coated on the overglazed color blank to form a dry grain layer; 3, methylcellulose is sprayed and fixed on the surface of the dry grain layer, then the blank is put into a roller kiln to be fired, the firing temperature is set at 1000 DEG C-1048 DEG C, the firing time is set for 65-150 minutes, and a semi-finished product is prepared; 4, the semi-finished product out of the kiln is prepared into a finished produce after being processed through strickling for thickness fixation, rough polishing, fine polishing, edging, chamfering, air drying, inspecting and sorting, color separating and grading.

The invention relates to a mixed fiber concrete pipe, wherein mixed fiber concrete for forming the pipe comprises the following components according to the parts by weight: 322-540 parts of cement, 140-220 parts of water, 475-828 parts of sand, 864-1,306 parts of cobbles, 0.2-20 parts of polymer fibers and 20-140 parts of steel fibers. The mixed fiber concrete pipe has low raw material cost, light weight, high tensile strength, flexural strength, shearing strength and torsional strength, better durability and fatigue resistance, stronger capacities of shock resistance, abrasion resistance and cavitation resistance and better crack resistance, conforms to an energy saving and emission reduction policy and is a renewal product of the existing concrete pipes.

The invention discloses a process for magnetically separating and recovering iron and carbon from zinc volatilization kiln slag through a dry method, which is characterized by comprising the following processes of: pre-grading before kiln slag separation, performing fine-grain microwave drying-gradient magnetic separation and carbon collection, and separating iron from coarse grains, wherein the process of separating iron from coarse grains comprises the steps of: performing two-stage crushing, performing primary pre-magnetic separation tailings-discarding, performing air classification-dry ball-milling, and performing microwave drying-secondary magnetic separation and cleaning. The method can improve the separating grade of the product, realizes resource recycling, and can be popularized to the field of separating materials with obvious magnetic difference and the like from solid wastes.

The invention belongs to the metallurgical industry, and particularly relates to a smelting residue flash magnetizing roast comprehensive recycling technology. The technology is realized as follows: drying and thrashing smelting residues to obtain a powdery material with the moisture content not more than 3% and the particle size of -0.074 not less than 80%; preheating the powdery material and then roasting in a magnetized roaster at the temperature of 750-780 degree C; separating gas from solid and cooling; grinding, grading and concentrating roasted ore; all-sliming cyanidation leaching gold and silver; recycling gold and silver through carbon absorption to obtain gold and silver active carbon; and cyaniding tailings and performing magnetic separation to obtain iron ore concentrate. The technology disclosed by the invention can solve problems about treatment of gold, silver and iron smelting residues, not only can comprehensively recycle gold, silver and iron, but also can reduce pollution of the smelting residues to the environment, as a result, the waste is turned into the wealth, the national policy of energy conservation and emission reduction is met, certain economic benefits are created for an enterprise, and the pollution to the environment is reduced.

The invention relates to a storage battery activation grid-connected discharging device which comprises a main circuit unit and a control unit. The main circuit unit comprises a booster circuit, an inverter circuit and a filter circuit which are sequentially connected, a storage battery is connected with an input end of the booster circuit, an output end of the filter circuit is connected with a power grid, the control unit comprises a controller and a driving circuit, the controller is connected with the driving circuit in a controlling manner, and the driving circuit is used for driving power tubes in the booster circuit and the inverter circuit. By the aid of the booster circuit, the inverter circuit and the filter circuit, electric energy of the storage battery is fed back to the power grid, a traditional heating discharging method is replaced, energy loss is greatly decreased, and the national policy of energy conservation and emission reduction is met.

The invention belongs to the technical field of resource utilization of solid wastes, and particularly relates to a method for resource utilization of cobalt smelting waste slag. The invention provides the method for preparing foamed ceramic by microwave sintering of the cobalt smelting waste slag. The method comprises the following steps: carrying out proportioning by using the cobalt smelting waste slag, filler, a liquid phase agent, a plasticizer and a foaming agent, carrying out grinding, mixing, granulating, and mold pressing or mold powder accumulation to prepare a green body; and carrying out microwave sintering to prepare the foamed ceramic. The microwave heating method is adopted, and compared with a conventional electric heating or fuel heating mode, the microwave heating methodhas the advantages that the foaming temperature is greatly reduced, the foaming time is shortened, and therefore energy consumption is greatly reduced. According to the method, the problems of high energy consumption in existing formed ceramic industry and high additional value comprehensive utilization of the cobalt smelting waste slag are solved.

The invention provides a method for preparing glass ceramic from waste residues related to severe hazards. The high-entropy glass ceramic can be prepared by the aid of the method at a low cost in an environment-friendly manner. The method has the advantages that the problem of high energy consumption in high-entropy glass ceramic production procedures can be pertinently solved by the aid of the method; hot melt residues at the temperatures higher than 1100 DEG C are utilized, heat supplementing, quenching and tempering are carried out by the aid of residue melting furnaces, accordingly, the high-entropy glass ceramic can be produced by the aid of the method, energy consumption can be reduced to a great extent, the method conforms to the current national energy conservation and emission reduction policy and is important technical innovation for production in the national hazardous waste industry, and the hazardous waste recycling and reusing additional values can be sufficiently maximized; diversified trace heavy metal elements in the hazardous waste residues which are subjected to high-temperature melting-reduction treatment are excellent nucleating agents, accordingly, the anticorrosion and abrasion-resistant high-entropy glass ceramic which is high in strength and hardness and excellent in high-temperature heat stability can be prepared without optional additional nucleatingagents in tests, the manufacturing cost of the glass ceramic further can be reduced, and the method is extremely high in market competitiveness.

The invention discloses dry desulfurization agent production process and system. A calcium-based material, a reducing agent, a catalyst and an auxiliary agent are mainly used as raw materials; a milland a mixing and stirring main machine are the main components of the system. The preparation method comprises the following steps: feeding a calcium-based material, a catalyst and an auxiliary agentinto a mill for grinding to obtain a semi-finished product; feeding the semi-finished product and a reducing agent into a mixing and stirring main machine for mixing and stirring the components, thereby obtaining the dry desulfurization agent. By means of the process and system, the problems that in the prior art, a dry desulfurization agent production method is complex; the technical problems ofunstable blanking, insufficient reaction, influence on the desulfurization efficiency and the product quality and the like of the existing dry desulfurization agent are solved; moreover, the high-stability desulfurization and denitrification absorbent can be produced, the desulfurization efficiency is high, secondary pollution is avoided, the production process is simple, and the operability is high.

The invention discloses a manufacturing process of a girder of an overhead or gantry crane, a threaded pull rod 7 in a box body 1 of a tensioning device is connected with a connecting seat 6, and the manufacturing process is characterized in that two wedge-shaped grooves are formed on the connecting seat 6, two rope head casting ports 5 with wedge-shaped outer shapes and square cone-shaped inner cavities are mounted in the grooves, two wedge-shaped grooves are formed on a fixed hinge 19 at the other end of a steel wire rope 3, and the rope head casting ports 25 with the wedge-shaped outer shapes and the square cone-shaped inner cavities are mounted in the grooves. The manufacturing process adopts the two groups for tensioning, the two groups are mounted on the same girder, and the ultimate tensioning force is great, thereby being applicable to manufacturing the girders of the cranes with the hoisting capacity of below 400 tons. The manufacturing process has the advantages of easy manufacturing, low cost and convenient construction, and is particularly applicable to manufacturing the gantry cranes with the span of above 60m in ports and the shipbuilding industry. The arch difference of the girder of the crane manufactured by adopting the invention can be controlled within 0-1mm, which is better than the international standard; furthermore, the manufacturing process can increase the cutting area of the girder structure, improve the strength, the static stiffness and the hoisting capacity of the girder, save steel, reduce the cost by 15-20%, be in line with the policies of energy conservation and emission reduction and prolong the service life of equipment.

The invention relates to an ultra-wide apron conveyer belonging to the technical field of material conveying equipment. The conveyer comprises a head, a tail, a middle casing, an apron, a chain and a steel rail set, wherein rolling wheels are arranged between the apron and the steel rail set, and the steel rail set comprises a plurality of parallel steel rails which are welded on a middle bracket. The apron is driven by a driving device to operate on the steel rails according to the designed track, the material is lifted through the narrow and long apron and a guide chute arranged on the middle casing to finish the conveying task, and the conveying process with large conveying capacity, specific material characteristics, certain material temperature and certain conveying angle can be finished. The invention has good using effect in refuse treatment, raw material conveying of biomass power generation and slag removal systems of large thermal power units, and has advantages in the process of conveying large high-temperature materials in the fields of mines, coal, metallurgy, chemical industry, casting and the like.

The invention discloses a preparation method used for sintering of building ceramsite from electroplating sludge. The ceramsite raw materials comprise 50 to 70% of micaceous sand (gold mine separationtailing), 20% of water supply plant aluminium sludge, and 10 to 30% of electroplating industrial park electroplating sludge. The preparation method comprises following steps: the raw materials are dried, crushed, and grinded for pretreatment, and are mixed to be uniform, 3 to 5% of sodium silicate solution is added as a ceramsite binder, mixing granulation is carried out to obtain raw ceramsite;and then drying, pre-heating, sintering, and cooling are carried out to obtain the ceramsite. According to the preparation method, aluminium sludge and micaceous sand are adopted to replace clay to provide Al2O3 and SiO2, the electroplating sludge is adopted to provide a fluxing agent, so that ceramsite manufacturing cost is reduced obviously, the prepared ceramsite is high in compression strength, and low in leaching toxicity; large scale processing of electroplating sludge and water supply plant sludge can be realized; harmlessness treatment of harmful waste is realized; resource utilizationis realized; electroplating sludge and aluminium sludge processing cost is saved; and the obtained product can be taken as building material, and excellent economical benefit and social benefit are achieved.

The invention discloses a gas lifting jack for an excavator and relates to the technical field of excavators. A piston rod and a piston are arranged in a cylinder body, one end of the piston rod is connected with the piston, the other end of the piston rod stretches out of one end of the cylinder body, and a first flying ring is arranged at the stretching-out end and connected to a rotary disc big frame of the excavator. The upper portion of the cylinder body is connected with a cylinder head, the cylinder head is fixed into the cylinder body through a cylinder cover, and a second flying ring is arranged at the other end of the cylinder body and connected to a big arm of the excavator. The piston divides the interior of the cylinder body into two cavities, the piston rod is arranged in one chamber serving as a rod end chamber, and the piston rod is not arranged in the other chamber serving as a non-rod end chamber. The rod end chamber is connected with a rod end chamber oil pipe of a big arm oil cylinder of the excavator, the non-rod end chamber is communicated with a high-pressure gas bottle, a first sealing structure is arranged between the piston and the cylinder body, a second sealing structure is arranged between the piston rod and the cylinder head, high-pressure nitrogen is used in the non-rod end chamber for work, hydraulic oil is used in the rod end chamber for work, the output power of an engine is reduced, and lifting force of a working device is improved.

The invention discloses a furfural production process system for conveying raw materials in a closed mode. The system consists of a plurality of hydrolysis reactors and a feeding system, wherein a material cabin is arranged above the hydrolysis reactors, a screw conveyer is embedded in the material cabin, the feeding system utilizes a pipeline negative pressure conveying device, the pipeline negative pressure conveying device comprises a cyclone separator which is installed on an inlet of the hydrolysis reactor material cabin, an air outlet at the top of the cyclone separator is connected with an exhaust tube, a feeding port at the side of the cyclone separator is connected with a feeding tube, the exhaust tube is connected with an air inlet of an exhaust fan, the feeding tube extends downwards into a material stack, and an air out of the exhaust fan is connected with a pulse type bag dust remover through a pipeline. Accordingly, the conveying efficiency of the pipeline negative pressure conveying device is high, and the conveying is in a closed mode, so that the system is free from dust and noise pollution, the whole process line is compact in appearance, attractive in appearance, energy-saving, environment-friendly, and requirements of the energy-saving and emission-reduction policy which is advocated by China are met.

The invention discloses an in situ chain extension repairing-based regenerated ABS/HIPS alloy material. The in situ chain extension repairing-based regenerated ABS/HIPS alloy material comprises, by weight, 100 parts of a waste ABS and waste HIPS mixture, 1-5 of an ABS-based macromolecular chain extender and 1-5 parts of an HIPS-based macromolecular chain extender. The in situ chain extension, thein situ compatibilization and the toughening effects of the macromolecular chain extender are used to realize growth and repairing of the broken chain, improve the phase interface, increase the compatibility and improve the glue content, so the regenerated plastic-alloy material having reduced flow and excellent comprehensive performances is prepared, wastes are fully utilized, and energy saving and emission reduction are achieved. The invention also discloses a preparation method of the regenerated alloy material.