Ultrafine mill

Ultrafine mill
  • 【Number of fineness】: 400-3000 mesh
  • 【Production capacity】: 600-10000kg / h
  • 【Application】: tungsten, barite, wollastonite, kaolin, rare earth ore, hematite, talc, feldspar, slag and so on.
  • 【Products】: Micro-grinding is my company's own development of new products, is the current domestic advanced dry non-metallic mineral powder fine grinding equipment. Material crushing and powder grading placed in the same body and their independent operation, with a compact structure, product fineness adjustable 1400-3000 mesh.
Definition of ultrafine mill

Crushing range: quartz, feldspar, clay, clay, bentonite, calcite, talc, barite, fluorite, clay, white mud, gypsum and other hardness in the Mohs below seven humidity below 6% Burning explosive mineral materials. Grinding machine grinding finished product size range of 325 mesh -1800 head (according to different requirements to adjust)

The model for the dry roller crushing crushed, clever use of the arc grinding, the rational use of the collision, rolling, grinding mechanism. Set crushed grading in one, qualified powder timely extraction, coarse powder to continue grinding, to avoid the material crushed, alternative Raymond Mill to do ultra-fine grinding.

Used in heavy calcium carbonate, kaolin, marble, barite, gypsum, calcium oxide, calcium hydroxide, activated carbon, asphalt coke, cracking carbon black, graphite and so on.

Ore ultrafine mill

Ore milling machine, also known as stone powder grinding machine, ore powder mill, stone powder mill, stone powder mill, stone powder processing equipment, commonly known as ultra-fine milling machine, grinding production line is the core product, mainly for Metallurgy, building materials, chemical industry, mining and other mineral materials, grinding, grinding quartz, feldspar, calcite, talc, barite, fluorite, rare earth, marble, ceramics, aluminum vanadium, Mineral oil, dolomite, granite, garnet, iron oxide yellow, soybean cake, fertilizer, compound fertilizer, fly ash, Bituminous coal, coke, kaolinite, kaolinite, kaolinite, kaolinite, pyroxene, kaolinite , More than 100 kinds of Mohs hardness below 6, the humidity of 6% in a variety of non-flammable and explosive mineral materials, such as gravel, green rock, rocky rock, basalt stone, gypsum, graphite, silicon carbide. Ore fine milling machine fine powder finished grain size in the 325-3000 mesh between the arbitrary regulation, the output of up to 0.5-12 tons per hour if you need to deal with a variety of non-metallic ore to 15-425 Please use Raymond powder Mill. But if there is a higher demand for fineness will have to consider ultra-fine grinding machine.

ultrafine mill performance characteristics:
  • 1. The structure is simple and reasonable, self-attack broken, ultra-low use of the cost;
  • 2. Unique bearing installation with advanced spindle design, so that the machine has a heavy load and high-speed rotation characteristics.
  • 3. With crushing, coarse grinding function;
  • 4. High reliability, strict security devices to ensure equipment and personal safety;
  • 5. Smooth operation, work noise, energy efficient, high crushing efficiency;
  • 6. By the material moisture content of small, water content of up to 8%;
  • 7. Wear parts loss is low, all wearing parts are used at home and abroad high-quality wear-resistant materials, long service life A small amount of wearable parts made of special hard wear-resistant material, small size, light weight, easy to replace accessories.
  • 8. Eddy current chamber internal air circulation, dust pollution.
  • 9. Impeller and vortex crushing cavity of the material from the lining to significantly reduce the cost of wear and maintenance work. Production process, the stone can form the protection of the bottom, the body without wear, durable.
Superfine grinding machine work should pay attention to what matters
  • 1, often check the bearing temperature, if the temperature is too high, should check the lubrication and transmission part of the normal, rolling distance is too tight and so on. Timely identify the reasons, take the appropriate measures, the situation should be shut down to check.
  • 2, often check the degree of tension belt, belt loose will reduce the transmission efficiency and affect the grinding effect, too tight is likely to cause bearing heat, increase power consumption, reduce the belt life.
  • 3, a variety of transmission parts must be fast and reliable, disassembly or installation should use special tools, prohibit the use of tools such as hand hammer directly hit.
  • 4, do not forget to check the pneumatic components, plastic milling machine after the start, we must always check the gas in the pneumatic components, gas and connections are leaky or damaged, and to check whether the supply pressure to meet the requirements of the belt The use of the situation should always check, if found too tight, too loose, beating, deviation, serious wear and tear, etc., should be timely adjustment, repair or replacement. Gas triplets in the oil mist to the oil storage time to check, you must add 20 # spindle oil, in order to prevent the pipe hole plug.
Ultra - fine milling machine working principle

ultrafine mill work, the host motor through the reducer to drive the spindle and the turntable rotation, the turntable through the pin drive dozens of ring roll in the grinding ring rolling and rotation. Large pieces of material broken by the crusher into small particles by the hoist into the storage silo, electromagnetic vibration feeder to the material evenly to the middle of the upper turntable, the material in the centrifugal force under the circumference of the circumference, and fall into Grinding ring by the ring roller stamping, rolling, grinding and grinding, the material crushed by the first layer into the second and third layer, the pressure of the centrifugal fan suction the external air inhalation machine, and after The third layer of crushed powder into the powder machine.

The configuration of ultra - fine milling machine production line

SBM according to the various types of stone in a number of aspects of the production characteristics, integrated ultrafine mill production line of the overall advantages to the user configuration of the ultrafine mill production line, including a full set of crusher, bucket elevator, storage silo , Vibration feeder, micro-grinding host, frequency classifier, double whirlpool collector, pulse dust removal system, high pressure fan, air compressor, electrical control system and other equipment composed of a production line, this program configuration Also has a certain advantage exists, mainly in the following aspects:

1, ultrafine mill production line of the program, to the user's biggest advantage is to simplify the production process, the market we often see the production line in the production line, there are three, four broken to complete the entire production, Now SBM simplifies these production processes into two pieces of production, which can not only reduce the host equipment, but also reduce the crusher equipment and milling equipment between the feeding belt conveyor and these devices in operation The process of power consumption, wear-resistant parts and so on.

2, in addition to ultrafine mill production line configuration of the crusher and micro-grinding machine which can not only simplify the production process, colleagues can also achieve lower production energy consumption between 30-40%, so that the wear-resistant parts to reduce 70-80%, in order to achieve a total investment reduction between 20-30%.

Superfine grinding common faults and solutions

Ultrafine grinding and ball mill is also a kind of grinding equipment, but it is mainly used for gravel production line, because the ultra-fine grinding without crusher crushing, you can directly deal with raw materials, simplifying the production process, and ultra-fine Micro-grinding grinding of the material in the particle size span is relatively large, and the smallest size than the ball mill small, so the production process is widely used. Then the ultra-fine grinding in the production process will have what problems, his maintenance method is what, then we introduce a few common problems to deal with.

1, ultra-fine grinding no powder or powder production less

  • (1) lock the powder seal is not tight, the lock powder can be sealed;
  • (2) blade serious wear and tear, then need to replace the blade.

2, ultra-fine powder grinding powder too thin or too thick

  • (1) the powder is too thick, then generally because the grading machine serious wear or fan air volume is too small. Reduce the fan into the air or replace the new leaves can solve the problem of ultra-fine powder grinding powder too thick.
  • (2) out of the sub-fine words, the general is because the fan air volume is too small or to improve the fan air volume into the air can be resolved.

3, micro-grinding host current rise, machine temperature rise, fan current drop

  • (1) feeding speed too fast. Reduce the amount of feed, remove the air duct of the plot powder or open large duct valve, the inlet temperature control to 6 degrees below.

4: ultra-fine grinding of the host noise, and the shock of the powerful.

  • (1) too little feed, then we need to adjust the amount of feed;
  • (2) blade wear and tear, replace the ultra-fine grinding blade can be;
  • (3) grounding screw is not fastened The Fixed foot bolt.
  • (4) raw materials too hard or too large, the replacement of raw materials.
  • (5) ultra-fine powder grinding roller grinding ring deformation is serious, replace the roller and grinding ring.

5, ultra-fine powder grinding machine vibration powerful

  • (1) ultra-fine grinding of the leaves too much powder or wear imbalance. Solution: clean up the powder on the leaves or replace the leaf blades;
  • (2) grounding screw loose. Tighten the anchor bolts with a wrench.

6, fuel tank and transmission heat

  • (1) the viscosity of the oil is too thick to check whether the viscosity of the oil meet the requirements;
  • (2) analysis of the direction of the yuan is not correct, adjust the direction of operation of the analyzer.

7, ultra-fine grinding of the roller device into the powder bearing damage

  • A, may be bearing lack of oil, or damage to the ring. Regular inspection, refueling.
Inspection of working efficiency of ultrafine mill

In the use of mine resources, with the exception of a small number of minerals can not use the commonly used equipment processing, 85% of the ore resources are through the ultra-fine grinding machine processing, with its physical state of the powder posture to attack the market, And get their own proprietary performance. So the production efficiency of grinding operations is the focus of the production of manufacturers, then, how to detect ultra-fine grinding machine is "lazy" it?

First, the detection operation rate, that is, ultra-fine grinding machine working time ratio:

It refers to the actual working hours of the equipment for a month or a year as a percentage of the number of hours. The operation rate of the ultra-fine mill reflects its technical status, and its level reflects the management level of the staff. Which can also expose and analyze the reasons for the abnormal operation of the milling operations, to take effective measures to improve. Improve the operation rate of ultra-fine grinding machine equipment also increased the production capacity of milling workshop.

Second, the production capacity:

The production capacity of ultra-fine grinding machine, including production capacity, the use of coefficient, the specific size of the utilization factor. Only when the equipment model, specifications, ore nature, to the ore particle size and product size and the same requirements, the ultra-fine grinding capacity of the mill can be more concise review of the work situation. The use of the coefficient can only be in the ore particle size, product size are similar conditions, in order to more truly reflect the nature of the ore and the various conditions of milling. Specific grain size utilization factor can be more realistic to reflect the work situation, you can compare the different specifications, different particle size and product size of the work under the production capacity.

Third, the fineness and efficiency of milling:

Finished fineness is the production of ultra-fine mill, the daily inspection of another quality indicators. The fineness of the flour is usually sieved with the "sieve" of the "standard sieve" and is expressed as a percentage of the total amount of the product through the sieve (ie, the sieving rate). The higher the sieving rate, the finer the product The more production. Unit power consumption productivity can be more realistic from the energy point of view reflects the ultra-fine grinding machine work, therefore, energy and productivity can be linked to evaluate the work of equipment.

How to solve the problem of ultra-fine mill powder powder uneven?

Ultra-fine grinding machine is the stone production line commonly used high-performance milling equipment, a wide range of applications, is China's high-fine powder production industry in the most commonly used milling machinery. In the milling machine for different materials for the production of fine powder, there will be milling machine finished powder can not be discharged or the feed at the mouth of powder and other powder into the phenomenon of less, greatly affected the smooth production. At this time to shut down the equipment in time for maintenance, to ensure the production of stable and efficient.

General ultra-fine grinding machine to meet the most common problem is the problem of uneven powder. So how to better solve it? The following Collier Machinery Co., Ltd. engineers for your detailed answer:

ultrafine mill in the feed if the material is uneven, will lead to the accumulation of materials in the grinding room, the material can not be fully grinding effect, which can not be normal discharge; ultrafine mill grinding powder Through the role of the blower in the circulation duct, when the blower air volume is too large, will cause the powder back, even from the feed port; ultrafine mill in the entire process is in a sealed environment, when the ultra-fine Grinding machine seal lax or lock powder sealing failure, will cause the wind down suction, affecting the smooth discharge of finished products.

Then how to solve it, is a crucial issue, when the ultrafine mill caused by the above situation caused by abnormal discharge, the need for downtime may cause trouble to troubleshoot and repair, to ensure that ultrafine mill feed evenly , Can not be a large number of feed or not for the phenomenon of material in the feed by checking the device ammeter changes in the instructions to adjust to avoid the phenomenon of material in the grinding chamber blockage; the blower air volume should be timely observation of ultra-fine grinding , Can not be too large to cause the powder material circulation too fast, not through the analysis of the analyzer in the circulating air duct continuous flow, can not normally discharge equipment; ultrafine mill to carry out regular checks on the seal, while ensuring the lock Lax, to avoid the phenomenon of suction suction phenomenon. In the equipment after a thorough inspection to ensure that the powder before they can start a normal production work to prevent the equipment and other production problems.