35results about How to "Has a grinding effect" patented technology

The invention discloses green ecological cement with stone wastes as raw materials and a production method of the green ecological cement. The green ecological cement comprises the following raw materials in parts by weight: 30-40 parts of stone wastes, 40-50 parts of Portland cement clinker, 0.03-0.05 part of a complex activator and 2-4 parts of an early strength agent. The cement clinker is Portland cement with the grade being more than 52.5, and the stone wastes are mixtures of marble powder and granite powder. The production method comprises the following steps of drying, burdening, grinding and homogenizing the raw material to obtain the green ecological cement. According to the method for producing the green ecological cement with the stone waste as the raw material, by adulterating the stone waste, the proportion of the clinker in the cement is reduced, the product cost is reduced, the performance of the cement is improved, and stone powder pollution caused by stone processing industry can be substantially reduced.

A trigger for stimulating the early-phase activity of the blast furnace slag powder or the mixture of blast furnace slag powder and cinder powder is proportionally prepared from triethanolamine and early strengthening agent (calcined gypsum or bihydrated gypsum or potassium chromium sulfate).

The invention discloses a hydrated and carbonized composite hardened cementing material based on steel slag and a preparation method thereof, belongs to the technical field of building materials, and solves the problems of high consumption, high energy consumption, large CO2 emission, low carbonized and hardened body strength and narrow application range in production of natural ore from hydraulic lime / natural hydraulic lime. The hydrated and carbonized composite hardened cementing material based on steel slag comprises the following raw materials: 25-30% of cement clinker, 20-25% of pretreated carbide slag, 1.5-2.0% of industrial byproduct gypsum, 3-5% of bentonite, 0.5-1.0% of a hydrated and carbonized accelerant and the balance of steel slag. The method comprises the following steps: preparing materials, selecting iron, and grinding into powder. The hydration and carbonization composite hardening cementing material based on the steel slag has good hydration hardening performance and carbonization hardening performance, a hardened body shows good mechanical performance in water, air and CO2 atmosphere, and the application field is widened.

The invention discloses a method for producing seawater corrosion-resistant green ecological cement from stone waste, which comprises the following raw materials in parts by weight: 30-40 parts of stone waste; 40-50 parts of sulphoaluminate cement clinker; 0.03-0.05 parts of activator; 2-4 parts of early strength agent; 0.3-0.5 parts of water reducing agent; 0.005-0.007 parts of air-entraining agent; The salt cement clinker, composite activator and early strength agent are crushed separately, pulverized, homogenized, then mixed and homogenized according to the proportion, and then added with water reducer, air-entraining agent and retarder, mixed and homogenized to obtain the product. The seawater corrosion-resistant green ecological cement of the present invention, in addition to the performance of ordinary cement, also has excellent characteristics such as high strength, seawater erosion resistance, seawater erosion resistance, etc., and is especially suitable for underground projects, ports, wharves and other erosive media. project.

The invention provides a chromium-reducing cement grinding aid and a preparation method thereof, which solves the problems of ferrous sulfate and chromium-reducing cement grinding aids in the prior art. Cement grinding aids will be gradually oxidized, which will affect the chromium reduction effect, and there is a technical problem of strict requirements on the use temperature. Its preparation comprises the following components by weight: 10-20 parts of alcohol amine; 5-15 parts of inorganic salt; 2-20 parts of organic acid; 45-83 parts of water. The chromium-reducing cement grinding aid prepared by the present invention not only has the grinding-aiding effect of the grinding aid itself, but also has strong oxidation resistance, is suitable for long-term storage, and can avoid storage being oxidized and affecting the chromium-reducing effect; the finished product is a uniform solution , can avoid the phenomenon of sediment accumulation that is easy to cause pump blockage; and has excellent high temperature resistance, and can well adapt to changes in the temperature of cement working conditions; the production process is simple, easy to operate and quality control, with obvious technical advantages and broad market prospects .

The invention provides a reduced-chromium cement and a preparation method thereof, which solves the problem of ferrous sulfate and reduced-chromium cement in the prior art. Due to exposure to air, both ferrous sulfate and reduced-chromium cement will be gradually oxidized , which in turn affects the chromium reduction effect, and there is a technical problem of strict requirements on the use temperature. Its preparation comprises the following components by weight: 10-20 parts of alcohol amine; 5-15 parts of inorganic salt; 2-20 parts of organic acid; 45-83 parts of water. Due to the addition of chromium-reducing grinding aid in the present invention, it not only has the grinding-aiding effect of the grinding aid itself, but also has strong oxidation resistance, is suitable for long-term storage, and can avoid storage being oxidized and affecting the chromium-reducing effect; the finished product is uniform solution, which can avoid the phenomenon of sediment accumulation and easy pump blockage; and has excellent high temperature resistance, which can well adapt to the temperature change of cement working conditions; the production process is simple, easy to operate and quality control, and has obvious technical advantages and a broad market prospect.

The invention provides a preparation method of an activated grinding aid for concrete composite admixture, comprising: pretreating polyacrylamide to obtain 3 + cationic polyacrylamide solution; add the K12 solution with a mass concentration of 8~12% to the cationic polyacrylamide solution at a constant speed, and at the same time, use an ultrasonic generator with a power of 200~500W and a frequency of 40~120kHz , heated to 60°C and stirred at a constant temperature for 1-2 hours; after the dropwise addition was completed, turn off the ultrasonic generator, stop stirring, and lower the temperature to 50°C for 1-2 hours; put the solution obtained after ultrasonication in a vacuum drying oven, without The activated grinding aid for the concrete composite admixture is obtained by evaporating, drying and concentrating at a temperature exceeding 50°C. The grinding aid prepared by the method of the invention can slowly release K12 molecules during the grinding process to continuously produce the grinding aiding effect, thereby greatly improving the grinding efficiency.

The invention relates to the technical field of glass, in particular to a preparation method of ultra-thin glass, comprising the following steps: (1) taking glass, soaking the glass in a thinning etchant, and performing the first thinning treatment on the glass; (2) The thinned glass is double-sided grinding and polishing; (3) The double-sided grinding and polishing glass is attached to the carrier glass, and then soaked in the thinning etchant, and the glass is subjected to the second thinning treatment to make Get ultra-thin glass. The ultra-thin glass preparation method of the present invention can prepare ultra-thin glass with thin thickness, strong light transmission, good softness, and high touch sensitivity. It is used to prepare ultra-thin glass with a thickness of 0.03mm.

The invention provides novel nanoscale liquid titanium dioxide for a coating, and relates to the technical field of titanium dioxide, and the novel nanoscale liquid titanium dioxide for the coating comprises the following raw materials in parts by weight: 60-80 parts of titanium dioxide particles, 100-120 parts of calcium carbonate powder, 50-70 parts of wear-resistant and acid-resistant powder, 660-880 parts of deionized water, 6-16 parts of an activating agent and 8-20 parts of a flame retardant. According to the novel nanoscale liquid titanium dioxide for papermaking, the coating rate of titanium dioxide powder to calcium carbonate nano-powder can be increased, the used calcium carbonate powder and titanium dioxide powder are both ground to be nanoscale, the coating effect can be further guaranteed, wear-resistant and acid-resistant powder is added in the preparation process, the prepared nanoscale liquid titanium dioxide has a good wear-resisting effect after being used, and meanwhile, the added flame retardant enables the nanoscale liquid titanium dioxide to have flame retardance after being used so that the liquid titanium dioxide with excellent quality is prepared.

The invention discloses a method for producing green ecological cement resistant to seawater corrosion by using wastes from lime factories. The cement comprises the following raw materials in parts by weight: 45-55 parts of wastes from lime factories, 40-50 parts of sulphoaluminate cement clinkers, 0.04-0.07 part of compound activating agent, 1-3 parts of early strength agent, 0.5-0.7 part of water reducing agent, 0.004-0.006 part of air entraining agent and 0.4-0.6 part of retarder. The production method is characterized by breaking, grinding and homogenizing the wastes from lime factories, the sulphoaluminate cement clinkers, the compound activating agent and the early strength agent respectively, then preparing the materials in proportion, mixing the materials, homogenizing the mixture, then adding the water reducing agent, the air entraining agent and the retarder, mixing the materials and homogenizing the mixture, thus preparing the product. The green ecological cement resistant to seawater corrosion has the excellent characteristics of high strength, resistance to seawater corrosion and seawater scouring, and the like besides the properties of ordinary cement, and is especially suitable for underground engineering, ports, wharfs and other engineering suffering corrosion of erosion media.

The invention discloses a collecting agent for copper converter slag flotation and a use method thereof. The collecting agent is a mixture prepared from butyl xanthate, butyl amine black powder and xanthate type collecting agent Y89-4 in a mass ratio of (1:1:1)-(3:2:2). When the collecting agent is used, 500-1000g / t of sodium carbonate is added in the first section of copper converter slag grinding process; after the grinding is finished, 300-500g / t of lime is added; the ore pulp pH is adjusted to 10-11; 75-125g / t of the mixed collecting agent and 30-40g / t of foaming agent terpenic oil are further added and stirred and subjected to rough selection; after the rough selection, flotation tailings are subjected to further grinding and screening; screened products are subjected to three times of scavenging; 15-30g / t of mixed collecting agent and 10-20g / t of foaming agent terpenic oil are added for each scavenging. By adopting the technical scheme provided by the invention to process copper converter slag of which cooper content is 5.54 percent, copper concentrate of which the copper grade is 36.26 percent and the recovery rate is 94.82 percent can be obtained through a small-sized closed circuit test, and the copper grade of the floatation tailing is 0.35 percent, so that the recovery index is effectively improved; and meanwhile compared with an ordinary agent, the combined agent has the advantages of low dosage, good index, less pollution and the like.

The invention provides a composite dechrome cement grinding aid and a preparation method thereof, which solves the problem of ferrous sulfate and chromium depleting cement grinding aids in the prior art. Type cement grinding aids will be gradually oxidized, which will affect the chromium reduction effect, and there is a technical problem of strict requirements on the use temperature. Its preparation comprises the following components by weight: 10-20 parts of alkanolamine; 5-30 parts of chromium-reducing additive; 0.5-8 parts of organic acid; 42-84.5 parts of water. The composite chromium-reducing cement grinding aid prepared by the present invention not only has the grinding aid effect of the grinding aid itself, but also has strong oxidation resistance, is suitable for long-term storage, and can avoid storage being oxidized and affecting the chromium-reducing effect; the finished product is uniform solution, which can avoid the phenomenon of sediment accumulation and easy pump blockage; and has excellent high temperature resistance, which can well adapt to the temperature change of cement working conditions; the production process is simple, easy to operate and quality control, and has obvious technical advantages and a broad market prospect.

The invention discloses a method for producing seawater corrosion-resistant green ecological cement from construction waste, which comprises the following raw materials in parts by weight: 40-50 parts of sulphoaluminate cement clinker; 5-20 parts of construction waste; steel slag fine powder 20-25 parts; 0.06-0.08 parts of composite activator; 2-5 parts of early strength agent; 0.3-0.5 parts of water reducing agent; 0.005-0.007 parts of air-entraining agent; Construction waste, sulphoaluminate cement clinker, composite activator and early strength agent are crushed separately, milled, homogenized, mixed and homogenized according to the proportion, and then mixed and homogenized by adding water reducing agent, air-entraining agent and retarder get the product. The seawater corrosion-resistant green ecological cement of the present invention, in addition to the performance of ordinary cement, also has excellent characteristics such as high strength, seawater erosion resistance, seawater erosion resistance, etc., and is especially suitable for underground projects, ports, wharves and other erosive media. project.

The invention discloses a spherical dog chew and a preparation method thereof, and belongs to the field of pet foods. The spherical dog chew comprises a hollow ball body, the ball body comprises two hemispheres, the outer side walls of the two hemispheres are wrapped with an elastic coating layer, and the two hemispheres are sealed in the coating layer. The dog chew has the advantages that the ball body of a hollow spherical structure enables the dog chew to have better elasticity, the hollow structure of the ball body is achieved by the splicing of the two hemispheres, which can effectively reduce the processing difficulty and cost, and the elastic coating layer further enhances the flexibility of the dog chew and improves playability. The spherical dog chew has higher attraction to dogs,and has a better interaction function of human and pets, and the dog chew itself has a teeth grinding effect on the dogs.