47results about How to "Self-flowing" patented technology

The present invention discloses a green expansive cementing material based on salt chemical industry solid waste and building garbage, and a preparation method thereof, wherein salt-containing chemical industry waste (salt mud, carbide slag and mirabilite), building garbage (gravel, broken bricks and concrete blocks), steelmaking plant waste residue (water residue and steel residue) and power plant desulfuration gypsum are matched with an expander, a water reducer, a soluble calcium salt and other components, and fine grinding and uniform mixing are performed to prepare the green expansive cementing material. According to the present invention, the salt mud, the carbide slag, the mirabilite and other solid waste produced by the salt chemical industry enterprise are digested while the building garbage, the desulfuration gypsum, the water residue and other solid water are subjected to the resource utilization, such that the green expansive cementing material is the green environmental protection cementing material; and the green expansive cementing material has characteristics of good expansion property, good fluidity, good consolidation property, good early strength, active tightening and effective earth's surface sinking control, is the cementing material for mine, and is particularly suitable for the filling mining of coal mines or non-coal mines.

The invention relates to a high-water-content micro-expansion filling material composition, particularly a filling material for filling-process coal mining, belonging to the technical field of coal mining. The high-water-content micro-expansion filling material composition is characterized by comprising the following components in parts by weight: 100 parts of water, 55-60 parts of high-calcium fly ash, 1.5-2.0 parts of gypsum, 4-6 parts of cement, 0.15-0.20 part of sodium polyacrylate and 0.30-0.35 part of foaming agent. Compared with the prior art, the filling material provided by the invention has the advantages of low cost and great preparation convenience, is easy to transport due to high flow rate, can easily contact the roof due to expandability, and implements roof-contacted filling of the goaf by natural flow and active pressure application. The initial setting time is 5-6 hours, and the final setting time is 10-11 hours. When in use, the high-water-content micro-expansion filling material composition has sufficient preparation time, and can quickly reach a certain compression strength after filling.

The invention provides a foaming filling material for an alkaline residue mine. The foaming filling material is characterized by being comprising a component A and a component B, wherein the componentA is prepared from, by weight, 100 parts of cement, 100-200 parts of pulverized fuel ash, 100-200 parts of alkaline residue, 150-350 parts of water and 6-10 parts of foaming agent, the component B isprepared from, by weight, 100 parts of mixture of gypsum and lime, 6-10 parts of active agent, 100-200 parts of pulverized fuel ash, 100-200 parts of alkaline residue and 50-350 parts of water, and the weight ratio of gypsum to lime is (6-7):1. The foaming filling material has the advantages of having low density, low cost, short setting time, good fluidity and the like; industrial waste residueis utilized, acetylene sludge serves as the active agent at the same time, the expansion rate of the filling material is effectively increased, and the cost is effectively lowered.

The invention discloses an automatic-flowing quick-drying pouring material for a blast furnace iron runner. The automatic-flowing quick-drying pouring material is composed of the following main raw materials in percentage by weight: 65-70% of dense corundum, 14-18% of black silicon carbide, 3-7% of silicon nitride, 1-2% of a composite water-reducing admixture, 1-2% of a compound anti-blasting material, 1-3% of pure aluminum silicate cement, 1-3% of ultrafine silica powder, 2-4% of reactive alumina micro powder and 2-4% of silica powder. The preparation method comprises the following steps: adding various raw materials into a mixing reactor with a powerful stirring propeller for performing strong stirring, and packaging after stirring, thereby obtaining the product, namely the automatic-flowing quick-drying pouring material for the blast furnace iron runner. The product disclosed by the invention has the advantages of being resistant to corrosion of molten iron and slag, high in erosionresistance, excellent in thermal shock resistance, excellent in flaking resistance, high in oxidation resistance, easy in construction, capable of performing rapid baking without burst and preventingproduction of harmful gases and adhesion of iron slag, and long in service life, and the like.

The invention relates to a crushing system for an iron mine underground mill and a crushing process. The crushing system for the iron mine underground mill is characterized in that the crushing system is mainly composed of a coarse crushing plant, a medium crushing plant, a screening plant, a fine crushing plant and an overhaul system; and the coarse crushing plant, the medium crushing plant, the screening plant and the fine crushing plant are arranged in a stair-step mode from top to bottom in the vertical direction of a mining factory travelling roadway according to the operation sequence. The crushing process includes the steps that after mined lump ore with the particle size being 600mm-1000mm is crushed by a coarse crushing machine, a medium crushing machine and a fine crushing machine, the ore grain size is turned to be 20mm-30mm; and then the undersize product of a vibrating screen is fed into roughing flotation operation of a grinding flotation system through a pump. The crushing system is low in energy consumption, no earth surface land is occupied, environmental protection is achieved, and qualified raw materials can be provided for the subsequent grinding flotation system.

The invention discloses a filling slurry preparation system and a preparation method thereof. The preparation system comprises a thickener, an accident pool, a stirring system, a filling pump and a cement conveying and metering device installed at a discharging port of a cement bin, wherein the thickener and the filling pump are both arranged on the ground, a stepped pit is dug under the ground, the stirring system is composed of a high-speed flexible stirring machine, the high-speed flexible stirring machine and the accident pool are arranged in the pit from top to bottom, a hopper and/or a thick slurry pump is further arranged in the part, between the high-speed flexible stirring machine and the accident pool, of the pit, a sand discharging port of the thickener and a delivery port of the cement conveying and metering device are connected with a feeding port of the high-speed flexible stirring machine, the hopper is connected between a discharging port of the high-speed flexible stirring machine and a filling drill hole of an underground filling pipe network, and the thick slurry pump is connected between the discharging port of the high-speed flexible stirring machine and a pumphopper of the filling pump. According to the filling slurry preparation system and the preparation method thereof, slurry preparation links are fewer, the plant construction investment is reduced, and the equipment arrangement is flexible.

The present invention discloses a landfill leachate treatment process, which belongs to the high concentration organic wastewater treatment field, the treatment process comprises the following steps of pretreatment, anaerobic treatment, aerobic treatment, aquatic organisms pond treatment, sludge treatment and the like. The process of the present invention has the advantages of simple operation, obvious economic effect and significant treatment effect, and the effective removal of COD, total nitrogen, total phosphorus and heavy metal ions in the high concentration organic wastewater can be realized.

The invention provides a mine filling material and a preparation method thereof. The mine filling material is prepared from, by weight, 90-95 parts of a curing agent, 10-25 parts of sludge, 1-5 partsof construction waste particles, 0.5-2 parts of municipal waste particles, 0.1-0.5 part of a rheology modifier, 0.1-0.5 part of a thickening time control agent and 0.1-0.5 part of a defoaming agent; and the curing agent comprises 25-35 parts of ettringite, 25-35 parts of calcium silicate clinker, 15-25 parts of calcium sulfate, 15-20 parts of quick lime and 0.5-1 part of aluminum powder. The minefilling material can be stably conveyed into a filling mine for a long distance, the safety of a filling system can be guaranteed in the conveying process, condensation and segregation are avoided inthe conveying process, meanwhile, after a filling slurry is conveyed into a target mine, rapid condensation can be achieved, the strength is guaranteed, ecological environment treatment is achieved, and meanwhile waste materials are comprehensively recycled.

The invention relates to an environmental-friendly cofferdam on a working site. According to the technical scheme, a sucker rod ship-type tank is formed in a sucker rod placing area, four sucker rod fixing brackets are welded into the sucker rod ship-type tank and arranged at equal intervals, sucker rods are placed on the sucker rod fixing brackets, a sucker rod sewage collection groove is formedin the end head in the sucker rod ship-type tank, four oil pipe ship-type tanks are formed in an oil pipe placing area, the adjacent oil pipe ship-type tanks are connected through a buckle plate, fouroil pipe adjustable fixing brackets are welded into the oil pipe ship-type tanks and arranged at equal intervals, and oil pipe sewage collection grooves are formed in the end heads in the oil pipe ship-type tanks. The environmental-friendly cofferdam has the beneficial effects that the advantages of the ship-type cofferdam that steel materials are used for welding, firmness, sealing and reusability are achieved, the use amount of an anti-seepage membrane is decreased from the source, the generation of secondary pollution are reduced from the source, and the self-flowing and centralized recovery of outlet liquid in a shaft are convenient.

The invention discloses an oxygen-rich redox furnace which is divided into an oxidation furnace body (1) and a reducing furnace body (2), wherein independent furnace bases (3, 3'), furnace hearths (4, 4'), a water jacket, air nozzles (5, 5'), a siphon port, feed ports (6, 6'), discharge ports (7, 7') and flue ports (8, 8') are arranged on the two furnace bodies; safety ports (9, 9') are arranged at the lowest positions of the furnace hearths (4, 4') in the two furnace bodies; the foundation surfaces of the furnace foundations (3, 3') higher than the part of the reducing furnace body (2) are arranged on the foundation surfaces of the furnace foundations (3, 3') of the part of the oxidation furnace body (1); the discharge port (7) of the oxidation furnace body part is connected with the feed port (6') of the reducing furnace body part through a chute (10); and a viscous slag port (11) is formed on the outer side surface of the furnace hearth (4) of the part of the oxidation furnace body (1). The oxygen-rich redox furnace disclosed by the invention can solve the problems or defects of inconvenience in terms of equipment manufacturing, transportation, mounting and operation, and also can make use of the heat energy generated by an oxidation reaction to reduce the consumption of energy and accessories; and meanwhile, the oxygen-rich redox furnace also has the advantages that high-concentration smoke is used for preparing acid, the furnace accretion is convenient to dispose and the like.

The invention relates to the technical field of isoester synthesis, and provides an isoester continuous production process which comprises the following steps: S1, sequentially introducing a sodium thiocyanate aqueous solution and dichloropropene into a first cyanogen-passing reaction column, a second cyanogen-passing reaction column and a first thermal layering device for reaction to obtain a product A and a product B; s2, the product A is introduced into a distillation tower for a reaction, a product C and a product D are obtained, the product B and dichloropropene are sequentially introduced into an alkene-passing reaction column I, an alkene-passing reaction column II and a thermal layering device II for a reaction, and a product E and a product F are obtained; s3, introducing the product D and the product F into a cyanogen-passing reaction column I; s4, the product E is introduced into a wastewater evaporation separation coupler for a reaction, and a product G and a product H are obtained. Through the technical scheme, the problem of low conversion rate of sodium thiocyanate and dichloropropene in the prior art is solved.

The invention provides a self-rotating stirring device for a filling body and a process thereof, and relates to the technical field of mine equipment, and the adopted scheme is that the self-rotating stirring device comprises a cement paste pipe, a rotating stirring pipe and a gangue conveying mechanism, the rotary stirring pipe comprises a third-stage forward vortex flow channel section, a second-stage reverse vortex flow channel section and a first-stage forward vortex flow channel section which are sequentially and continuously arranged from top to bottom and are all of an arc-shaped structure, and the cement slurry inlet and the gangue particle inlet are located in the first-stage forward vortex flow channel section. The gangue particle inlet is closer to the second-stage reverse vortex flow channel section relative to the cement slurry inlet, the mixture outlet is located in the third-stage forward vortex flow channel section, and a connecting line between the center of the cement slurry inlet and the center of the mixture outlet is obliquely arranged and forms an inclination angle a with the vertical direction. The problems that an existing paste pumping filling mode is high in investment and large in occupied area, and safety accidents are easily caused due to the fact that the pressure is high during long-distance conveying of a conveying pump are solved.

The invention provides a novel switch cabinet. The switch cabinet comprises a switch cabinet body and a cooling component. The switch cabinet body comprises a cabinet body and a cabinet door. The cooling component is arranged in the middle of the top surface of the cabinet body; the switch cabinet comprises a box body, a transmission frame is arranged in the middle of the cavity of the box; a turntable is cooperatively mounted in the middle of the transmission frame; a mounting hole is formed in the edge of the turntable; a motor is arranged in the middle of the rear side of the box body, a motor shaft of the motor is fixedly connected with the mounting hole of the turntable, push rods are symmetrically arranged in the middles of the left and right sides of the transmission frame, pistonsare connected to the other ends of the push rods, annular refrigeration plates are symmetrically inlaid in the inner walls of the left and right ends of the box body, and the pistons are matched withinner cavities of the annular refrigeration plates. Compared with the prior art, the switch cabinet has the advantages that the cooling component is adopted, the temperature in the switch can be effectively reduced, air in the cabinet body can flow automatically, external dust entering the cabinet body is reduced, and safety is improved.

The invention discloses a series vertical aerobic and anaerobic combined underground soil infiltration system which sequentially comprises a plant layer, a planting soil layer, a water distribution layer, a first soil infiltration layer, a first supporting layer, a second soil infiltration layer and a second supporting layer from top to bottom. A water distribution pipe is arranged in the water distribution layer, a water inlet is formed in the top of the water distribution layer, and a water outlet is formed in the bottom of the second supporting layer; a breather pipe is arranged in the first supporting layer and is communicated with external air; the water distribution layer, the first supporting layer and the second supporting layer all comprise gravel blocks or coarse sand, and the first soil infiltration layer and the second soil infiltration layer both comprise loess. During operation of the system, the characteristics of upper-layer stagnant water migration behaviors in hydrogeology are shown, sewage is subjected to distribution combination of an aerobic environment, an anaerobic environment, the aerobic environment and the anaerobic environment in the vertical seepage direction, the mineralization effect on organic nitrogen is guaranteed, the removal effect on the mineralized nitrogen is also achieved, and the ammonia nitrogen and total nitrogen removal capability is greatly improved.

The invention discloses an unpowered self-flowing type underground soil infiltration system which sequentially comprises a planting soil layer, a water distribution layer, a soil infiltration layer and a supporting layer from top to bottom, the whole soil infiltration system is inclined, and the soil infiltration layer sequentially comprises a first soil infiltration layer and a second soil infiltration layer from top to bottom. The first soil percolation layer and the second soil percolation layer are of wedge-shaped structures matched with each other, and the soil density of the first soil percolation layer is lower than that of the second soil percolation layer. A water distribution pipe is arranged in the water distribution layer, a water inlet is formed in the highest position of the water distribution layer, and a water outlet is formed in the lowest position of the supporting layer. By constructing the variable-density and variable-thickness soil percolation layer, partitions of an oxidation-reduction environment are optimized, the hydraulic retention time of sewage in the system is prolonged, the sewage treatment and purification energy efficiency of the system is improved, meanwhile, the occupied area of the system is reduced, and the integrated functions of high operation efficiency, small occupied area and no external source driving force of the system are realized.