38results about How to "Improve throughput per hour" patented technology

The present invention relates to the application of triisopropanolamine in cement grinding aid. The cement grinding aid contains triisopropanolamine 40-100 wt%, triethanolamine 0-15 wt%, assistant 0-25wt%, and water 0-30wt%. The assistant is one or several kinds of carboxylic acid, lignosulfonate and alkay sulfonate. The cement grinding aid with triisopropanolamine has high grinding aiding effect, can raise the later stage strength of cement obviously, and has low cost and wide application foreground.

The invention discloses a grinding aid for preparing a cementing material for filling and dry stacking of mines. The grinding aid comprises the following raw material components in percentage by mass: 20%-30% of modified polymeric glycol, 5%-15% of diethanolisopropanolamine, 10%-20% of molasses, 5%-10% of sodium sulfocyanate, 5%-10% of sodium metaaluminate, 5%-10% of sodium fluosilicate and the balance of water. According to the grinding aid provided by the invention, the problems that a mixed material of water granulated slag, quick lime, water glass and the like is liable to cause ball pasting and is difficult to be finely ground in a grinding process are solved, the fluidity of the cementing material can be remarkably improved, the grinding efficiency of a ball mill can be improved, the machine-hour yield of the ball mill can be increased, the early strength of the cementing material can be remarkably improved, and the long-term strength of the cementing material can be properly improved.

The invention relates to the technical field of cement additives, particularly a retarding-type cement grinding aid. The retarding-type cement grinding aid is prepared from the following raw materials in parts by weight: 18-28 parts of triethanolamine, 12-24 parts of diethanolisopropanolamine, 2-8 parts of sodium tartrate, 5-17 parts of coco fatty acid diethanol amide, 8-16 parts of sodium gluconate, 6-14 parts of polyaspartic acid and 50-70 parts of water. The retarding-type cement grinding aid has favorable retarding effect, can enhance the early strength and later strength of cement, and is beneficial to enhancing the impermeability and freeze-thaw resistance of hardened concrete.

The invention discloses a slag grinding aid, which comprises the following components in percentage by weight: 40-60 percent of polymeric polylol, 5-15 percent of molasses, 2-8 percent of calcium lignosulphonate, 4-6 percent of glycerol and the balance of water. Due to the adoption of the slag grinding aid, the grinding efficiency of slag and the machine-hour yield of a grinder are increased, and the effect of improving mineral powder activity index can be enhanced. The slag containing a large quantity of vitreous bodies is ground separately, and the slag grinding aid is doped, so that the grinding efficiency can be increased by 10-15 percent, the energy consumption is lowered by 10-15percent, the 7-day activity index of slag fine powder obtained by grinding is increased by 4-6 percent, and the 28-day activity index is increased by 2-4 percent; and after slag mineral powder is added into cement, the cement mortar flowing degree is increased by 5-10 percent.

The invention provides a preparation method of a modified molasses waste liquid. The preparation method comprises the following steps: A, regulating the PH of the molasses waste liquid to the range of 9-11 by use of a sodium hydroxide solution, and filtering under a normal pressure to obtain a molasses filtrate A; B, adding an acetic acid solution to the molasses filtrate A until the PH is within the range of 2-3, thereby obtaining a molasses waste liquid B; C, thoroughly oxidizing the molasses waste liquid B by using 35% hydrogen peroxide, potassium permanganate or ozone, thereby obtaining a molasses waste liquid C; D, regulating the PH of the molasses waste liquid C to the range of 9-11 by use of the sodium hydroxide solution, thereby obtaining the modified molasses waste liquid. The invention also provides a cement grinding aid which is prepared by mixing the following raw materials in parts by weight with water: 2-5 parts of triethanolamine, 18-25 parts of diethanol monoisopropanolamine, 3-5 parts of industrial salt and 20-30 parts of modified molasses waste liquid. The modified molasses waste liquid has the characteristics of low production cost, and good grinding assisting and hydration assisting effects on the cement.

The present invention discloses one kind of granular neutral cement grinding aid and its preparation process. The grinding aid is produced with anhydrous sodium sulfate 40-50 wt%, gypsum dehydrate 10-20 wt%, elite calx 25-45 wt% and triehtanolamine 1-5 wt%. The grinding aid can activate the effective components in cement to raise the strength of cement, save cement clinker and reduce pollutant gas exhaust. The granular grinding aid has less stickness to bin.

The invention discloses a TK-JH mineral interface active material, and a preparation method and application method thereof. The TK-JH mineral interface active material is composed of the following components in percentage by weight: 30-60% of sulfate, 20-30% of silicate, 20-30% of plasticizing and water reducing agent, 3-6% of phosphate and 1-3% of alkylol amine salt. The TK-JH mineral interface active material can perform green revolution on the cementing material and foundation work, can make great contribution to energy saving and environmental protection, protection of mine resources, utilization of waste resources, sustainable development of circular economy and great exploits of centuries, and can become historical transitions in sunrise industry of cementing material and application of construction industry new materials in construction industry.

The invention is suitable for the technical field of cement grinding aids, and provides a mineralized material used in a cement grinding process, the mineralized material is composed of the following substances by mass: 2-5% of sodium sulfate, 4-7% of sodium thiosulfate, 0-3% of sodium sulfite, 1-3% of maleic anhydride dimer acid triethanolamine ester, 1-3% of ethylene glycol, and 79-92% of fly ash. By determining proper substances and content, promoting early hydration of cement and greatly improving the early hydration rate of cement particles, the early strength is improved, the hydration durability is considered, the later hydration of the cement is promoted through sodium thiosulfate, maleic anhydride dimer acid triethanolamine ester and ethylene glycol, the strength of cement paste is improved, and the cement paste can also wrap the surface of cement particles to form a protective film to eliminate bonding and adsorption agglomeration, the maleic anhydride dimer acid triethanolamine ester can form an oxidation protection film on the metal surface to retard the corrosion of steel bars so that the machine-hour yield of a mill is increased, the comprehensive performance of the product is improved, the power consumption of cement grinding is reduced, and the damage to the cement concrete caused by excessive chloride ions is avoided.

The invention discloses a cement preparation method. Superfine limestone powder in a raw material vertical mill system and kiln dust in the production process is taken as a mixed material to be applied to a cement mill to produce cement. When the superfine powder is applied to the cement mill to replace limestone to serve as the mixed material, the characteristics of the superfine powder can be fully utilized, the stacking density of cement particles is increased, the distribution of the cement particles is closer to the particle size distribution requirement of a Fuller curve and the cement strength is improved. When the superfine powder is used as the mixed material to be added into the cement mill, the superfine powder can be directly used as a finished product to be selected by a powder selecting machine without being ground again so that the machine-hour yield of the cement mill is increased, the 3-day and 28-day strength of cement is also increased, the effect of reducing the clinker consumption ratio in the cement can be achieved and the production cost is saved.

A ball grinder using the conic tetrahedals as grinding body is composed of cylinder, axle, motor, and the conic tetrahedals and circular balls in the ratio of (1-2):(1-10). Its advantages are high productivity, low loss of steel balls, and high specific surface area of powder body.

The invention belongs to the field of excitants and preparation thereof, and discloses a powder modified excitant for finely grinding fly ash and a preparation method of the powder modified excitant, the powder modified excitant comprises the following preparation raw materials: a modifier, a sacrificial agent, a reinforced excitant and anhydrite, wherein the modifier comprises lignosulfonate, sodium hexametaphosphate and sodium tripolyphosphate; the powder modified excitant can give full play to the potential of the pozzolanic effect of the pulverized coal ash, so that the strength and comprehensive performance of the prepared pulverized coal ash are greatly improved, the water demand of the pulverized coal ash is reduced, the filling effect of the pulverized coal ash is enhanced, and the application range and field of the pulverized coal ash are expanded; the machine-hour yield of production and preparation of the levigated fly ash is increased, and the power consumption of preparation and production of the levigated fly ash is reduced; the preparation method is simple and easy to operate and implement.

The invention discloses a biomass feed compression device, which comprises a device body, a worm, a chuck, a spiral convex groove, a motor, a feed port, a tapered pressing roller, a worm wheel, a discharge port and a fixed end. The device body A worm is arranged on the upper side, a chuck is arranged on the upper side of the worm, a spiral convex groove is arranged on the inner side of the chuck, a feed inlet is arranged on the upper side of the spiral convex groove, a motor is arranged on the upper side of the feed inlet, and a motor is arranged on the lower side of the motor. A conical nip roller is set, a discharge opening is set on the lower side of the conical nip roller, a worm wheel is set on the right side of the discharge opening, and a fixed end is set on the lower side of the worm wheel. The biomass feed compression device realizes the The function of uniform compression of material feed solves the problem of uneven compression density and low compression quality of traditional compression devices. The invention has the characteristics of uniform feeding, high output per machine hour, easy maintenance, energy saving, and stable working conditions.

The invention is a method for widening trolley sideboard of sintering ring cooling machine belonging to the field of sintering equipment technology. It needs to keep the wind box, rack, rotating frame and trolley main body of the ring cooler constant. It first uses the trolley triangular beam as the base, adds the outward trolley sloping plate at an angle of 30 DEG-60 DEG to the horizontal plane at the intersection of the triangular beam and the wind box below the trolley, and then moves the trolley sideboard outward according to the ultimately set width of the trolley sideboard. When widening the trolley sideboard, it needs to adjust and process the sideboard, namely make the smooth butt-joint of the trolleys outside sideboard, trolley inside sideboard and trolley sloping plate. It can improve the loading and operating efficiency of the ring cold machine, reduce the material leakage at the edge when conducting cooling ventilation and finally effectively improve the machine-hour output of the ring cooler. It has simple structure and is easy for designing and manufacturing.

The invention relates to the field of building processing aids, and discloses magnetized cement grinding aid mother liquor for building. The mother liquor comprises polyol, calcium lignosulfonate, anacidic solvent, alkaline lignin, hydroxyethyl methyl group cellulose ether, hydroxyethyl acrylate, magnetized water and auxiliary materials, the polyol, the calcium lignosulfonate and the acidic solvent are fixed in a reaction kettle, the alkaline lignin is added to the reaction kettle to adjust the pH of the mixture, the hydroxyethyl methyl cellulose ether and hydroxyethyl acrylate are added to the reaction kettle, standing is conducted, finally, a mixture after standing is introduced into a stirring tank from the reaction kettle, the magnetized water and the auxiliary materials are added forstirring, and the liquor is obtained after stirring is completed. The liquor solves the problems that the stability of a final product is poor in the preparation of existing cement grinding aids, andthe cement setting time and the compressive strength in the introduced cement are not ideal.