Small grinding machine for mineral powder

1. 1. Briquetting machine all kinds of metallurgical powder cold briquetting proction, all powder materials, need briquette briquetting machine to complete. Such as: coal powder, coke powder, all kinds of non-ferrous metal ore powder, scale and st, sludge, refractory, etc. It can also design and manufacture high pressure and high strength pellet press for ore powder, which is mainly used for non-ferrous and ferrous metal ore powder pelletizing and smelting directly into the furnace to improve the added value. All metallurgical instry waste, auxiliary materials need to furnace, need briquette briquetting machine to complete. For example: st, pond mud, oxide scale, steel slag, iron concentrate powder, aluminum ash powder, silicomanganese powder, etc. 2. Dry powder briquetting machine dry powder briquetting machine is mainly used for briquetting materials without moisture. Such as: quicklime powder, magnesia powder, copper concentrate powder, chrome ore powder, lead-zinc waste, bauxite, non-ferrous metal powder, refractory, ceramic and so on, through high-strength and high-pressure made of high capacity ball egg. Widely used in metallurgy, chemical instry, refractory and other instries. 3. Ore powder briquetting machine ore powder briquetting machine is mainly used for non-ferrous and ferrous metal ore powder briquetting, directly into the furnace smelting, improve the added value. All metallurgical instry waste, auxiliary materials need to furnace, all need to press the ball machine to complete. For example: st removal ash, sludge, oxide scale, steel slag, iron concentrate powder, aluminum ash powder, silicomanganese powder, etc. 4. Low pressure balling machine low pressure balling machine is suitable for wet powder balling, that is, adding appropriate proportion of water or other liquid binder into the material. The low pressure ball press has good effect on many kinds of materials, such as light burned magnesium powder, iron oxide scale, steel mill sludge, iron concentrate, etc. The low-pressure ball press is equipped with a recer. The motor and the recer are driven by arc gear coupling, and the two pressure rollers of the main machine are driven by synchronous gears to rotate in opposite directions. Low pressure ball pressing machine is mainly composed of motor, recer, frame, pressing forming mechanism and finished proct conveying mechanism. Its main characteristics are small volume, small power, movable and equipped with small conveyor. 5. Straw briquetting machine after practice and continuous improvement, the technology of straw briquetting machine has been improved day by day. It has the advantages of high automation, high output, low price, low power consumption, simple operation, convenient movement, no environmental pollution and so on. Therefore, it is widely used as a kind of special equipment to extrude crop straw into blocks, mainly corn straw, branches, forage and other straw biomass materials. 6. The powerful briquetting machine is mainly used for cold briquetting of coal powder, slime, medium coal, coke powder, coking coal, metallurgical powder and refractory materials. All powdery materials that need to be put on the furnace need to be finished by powerful ball press.

3. What are the instrial uses of three roller grinder

the three roller grinder in instry mainly refers to 3R Raymond mill, and its application in instry is mainly focused on the processing of fine ore powder. At present, the three roller grinder, Raymond mill, is mainly used in the processing of fine ore powder in many areas of China. Raymond mill is widely used in the processing of mineral powder, such as the processing of limestone powder for construction, cement processing and coating, and the three roller grinder is often used in the proction line of putty powder

using three roller grinder to process mineral powder generally belongs to the processing of coarse powder, but some customers also regard the mineral powder processed by Raymond mill as ultra-fine powder, which is unscientific. Scientifically speaking, the particle size of ultra-fine powder is more than 325 mesh, and even nanometer grade mineral powder can be regarded as ultra-fine powder. Most instries do not need ultra-fine powder. For example, the fineness of building mineral powder is about 80-200 mesh, the fineness of coating is about 60 mesh, and the fineness of paint is about 400 mesh. These fineness can meet the requirements by using Raymond mill. However, with the development of China's instry, Raymond mill is far from meeting the needs of proction, so more advanced grinding machine also came into being. Now the equipment for processing ultra-fine powder is called Sanhuan medium speed micro powder mill, which can process various kinds of ore micro powder, such as calcite, barite, limestone, etc. the fineness of processing can also be as high as 3000 mesh, It may replace the three roller grinder in the future.

4. The slag powder is generally the slag powder proced by vertical mill or ball mill. According to the specific surface area or particle size of ore powder, it is generally divided into S75, S95, S105 and S115 grades. Mineral powder is mainly used for ready mixed concrete.

5. There are superfine grinding equipment. You can find it on the Internet.

6. At present, there is no document that blast furnace slag is not solid waste. Such as the report:
the current situation and planning ideas of solid waste treatment and utilization in Nangang
blast furnace slag
the annual output of ironmaking plant is 6.0% × After the new iron plant is put into operation, the annual output of water slag is 1.35t × 106t, now sold as cement raw material, not high value-added utilization. At the end of last year, the Ministry of technology and quality, the investment office, the environmental protection department and other departments have concted research on the high added value utilization scheme of water slag superfine powder. The research conclusion is that the scheme is feasible and the benefit is remarkable. After the design and import equipment bidding work was carried out in May 2004, the work has been suspended e to financial problems< However, many people of insight have taken blast furnace water slag as secondary resources. For example, Baosteel Daily reported on June 11, 2010:
making secondary resources proce greater benefits -- Thinking about further expanding the comprehensive utilization of blast furnace water slag
Baosteel vigorously promoted the research and development and Application of blast furnace water slag, and formed a series of proprietary new technologies, which were highly appraised
blast furnace water slag is a kind of slag which is mainly composed of silicate and aluminosilicate when smelting pig iron. At the beginning of the development of metallurgical instry, blast furnace slag was once piled up and buried as waste, which affected the ecological environment. In the 1960s, with the development of mixing concrete instry, blast furnace slag powder as an independent component and active admixture of concrete was widely used, and European and American countries also formulated national standards. Baosteel became the first iron and steel enterprise in China to fully apply this new technology. Baotian new building materials Co., Ltd., affiliated to the Development Corporation, has successively introced two advanced water slag vertical mill proction lines from Japan and Germany, and initiated a new vertical mill proction process in China, making the annual output of slag powder reach 1.2 million tons, At the same time, the first proction and application standard of blast furnace slag powder in China was released. At present, the output of slag powder of Baotian company is among the best in China. Its procts are not only used in a number of key projects such as Viact of Shanghai outer ring line, Lupu Bridge and maglev train, but also exported to markets all over East China
Baosteel has made a lot of in-depth exploration on how to make full use of the secondary resources to proce more "golden benefits", especially in the comprehensive utilization of blast furnace slag, and achieved gratifying results. For example, in the concrete preparation process, Baosteel replaced the same amount of cement with 25% to 50% slag powder, which not only enhanced the strength and rability of concrete, Each cubic meter of concrete can also rece the cost by 15 yuan, "Baotian mineral powder" has become a brand in the building materials market. However, we should also be soberly aware that there is still great potential for the development of blast furnace slag resources at Baosteel, and the proction capacity of slag powder is far from meeting the needs of users in Shanghai and East China. According to statistics, Baosteel Branch proced about 2.5 million tons of blast furnace water slag every year before No.4 blast furnace was put into operation. After No.4 blast furnace was put into operation, it increased to 3.3 million tons, while Baotian company's proction capacity was only 1.2 million tons. This means that only about 40% of Baosteel's water slag is processed into slag powder. The rest of the water slag is provided to the cement plant for mixing and grinding cement by traditional process or long-term stacking in the storage yard, which is not only unfavorable to environmental protection, but also fails to achieve the best economic benefits
to sum up, there is still a lot of space for the utilization and development of Baosteel slag, and the market of slag powder needs to be further developed. The main direction in the future is to give full play to the advantages of Baosteel's water slag resources, increase new proction equipment and open up the bottleneck of proction capacity as soon as possible. At the same time, we should strengthen market research, aim at the major projects of the state and Shanghai, seize the opportunity to develop more new procts, and establish a more complete supply chain to truly "lead the market"< At present, with the rapid development of the construction instry, the demand for slag powder in concrete mixing plants is constantly expanding, but at the same time, we can not ignore the fact that a number of new grinding stations around Shanghai have been put into operation, which has a certain impact on the market. Therefore, Baosteel must give full play to the al advantages of equipment and technology while expanding the proction capacity of slag powder, improve the scientific and technological content of procts, vigorously develop extended procts and form more proprietary technology. Fortunately, Baotian's phase III project with an annual output of 500000 tons has been approved. In recent years, Baotian company attaches great importance to technological innovation, and its investment in science and technology has reached more than 5% of sales revenue. It has successively applied for four invention patents and two utility model patents, of which two invention patents have been authorized, and two technological achievements have been recognized by Shanghai high tech achievements transformation project. According to the requirements of Donghai Bridge, Shanghai Yangtze River Tunnel and bridge and other major projects, Baotian company organized technical research, and developed special admixtures for concrete of ocean engineering and Yangtze River Tunnel and bridge engineering according to the characteristics of different water quality. The 400000 tons of concrete special admixtures required for Donghai Bridge are all provided by Baotian company. Since the construction of Shanghai Yangtze River Tunnel and bridge project started last year, Baotian company has provided 50000 tons of high-quality special admixture, which has been praised by the construction party“ "Baotian ore powder" has won a good reputation in major projects. At present, some merchants in Southeast Asia also pay high attention to "Baotian ore powder"
the R & D and application of blast furnace slag is of great significance for Baosteel to make rational use of resources and take the road of sustainable development. As long as we give full play to the advantages of resources, and constantly promote technological innovation, we will be able to make the blast furnace slag proce more "golden benefits" Reporter: Xu Jiashu

7. The influence of mineral powder on concrete performance can be studied from "mineral powder + cement paste" to "mineral powder + cement mortar" and then to "mineral powder concrete". But for ordinary application units, such as commercial concrete mixing plant, it is not necessary to follow this rule. We can learn from the relevant research results and directly carry out concrete test to find out the reasonable mix proportion under specific conditions
1. The influence of mineral powder on the workability and mechanical properties of concrete
1) when the specific surface area of mineral powder is between 430m2 / kg and 520m2 / kg, and the content of mineral powder is between 30% and 40%, the reinforcement effect is the most significant
2) the single addition of mineral powder can improve the cohesion of concrete, prolong the setting time, and increase the bleeding amount, which may have some adverse effects on the pumping of concrete
3) the concrete compounded with mineral powder and grade I fly ash can give full play to the "complementary effect" of the two, increase the slump of concrete, have good workability, good cohesion and improve bleeding. At the same time, the cost of concrete can be significantly reced
4) for the cement fly ash mineral powder cementitious material system, under the premise of equal replacement, the appropriate amount of fly ash should not exceed 20%, and the appropriate amount of fly ash and mineral powder should not exceed 40%. At the same time, it is suggested that the 60d or 90d strength should be used as the concrete evaluation standard to make full use of the later strength of concrete
2. Effect of mineral powder on concrete rability
1) hydration heat of concrete. The hydration heat of slurry can be reced by adding mineral powder. When the content of mineral powder is less than 50%, the rection of hydration heat is not obvious. When the content reaches 70%, the hydration heat of 3D and 7d decreases by 36% and 29% respectively; When 20% mineral powder and 20% fly ash are used, the hydration heat of slurry in 3D and 7d can be reced by 38% and 20% respectively. For mass concrete with strict temperature control, the mixture of mineral powder and fly ash is an ideal mineral admixture, which can effectively rece the risk of early temperature shrinkage cracks of concrete
2) impermeability. Adding mineral powder or the mixture of mineral powder and fly ash into concrete can play the micro aggregate effect and secondary hydration reaction of admixtures, which can refine the pore size of concrete, rece the connected pores, improve the compactness of concrete, and greatly improve the impermeability of concrete. The results show that the mineral powder, fly ash and air entraining agent can rece the permeability of concrete by Coulomb method. The finer the mineral powder is, the greater the content is. Especially when the mineral powder is combined with fly ash and air entraining agent, the permeability of concrete can be significantly reced; According to nel method, for C30 concrete, the amount of mineral powder, fineness and re mixing can not significantly rece the chloride diffusion coefficient in concrete, while the appropriate air entraining agent can significantly rece the permeability of concrete.