How does a combined separator work?

The combined separator is mainly used as a grading equipment in the closed-circuit system of raw meal grinding in cement plants, and can also be used as a grading equipment for other non-metallic ore powders. The material that enters the separator is made up of two parts, most of the material is fed by the feeding port, the material is divided into 4 ways by the material chute 1, is fed to the scattering tray 4 at the top of the rotor 5 by 4 points respectively, with the rotation of the rotor 5, the material that falls on it is thrown out to the surroundings, falls into the sorting area after hitting the wall, and under the joint action of the sorting air flow and the rotor rotation, the material is sorted. The qualified material enters the rotor with the air flow, enters the cyclone 13 through the air outlet 3, collects the finished material by the cyclone cylinder, and discharges it through the outlet 12; The exhaust gas enters the system dust collector by the cyclone top outlet 14.

The unqualified material is collected by the inner cone 7 of the powder separator, enters between the inner and outer cone by the annular outlet between the inner cone and the impact cone 9, and is cleaned again by the updraft, and the coarse powder (unqualified material) is discharged by the return port 11. Another part of material is entrained by airflow, enters the separator by air inlet 10, first hits the impact cone and is forced to change direction, and the airflow velocity decreases rapidly simultaneously, and the material with larger particle size loses kinetic energy and falls into the coarse powder at this moment; The remaining part continues to rise, enters the sorting area and is sorted again through the guide vane 6. The maintenance of the machine is an extremely important and regular work, which should be closely coordinated with the extremely operation and overhaul, and there should be full-time personnel on duty to check.

Maintenance of the machine: the bearing bears the full load of the machine, so good lubrication has a great relationship with the life of the bearing, which directly affects the service life and operation rate of the machine, so it is required that the injected lubricating oil must be clean, the seal must be good, the main oil injection of the machine rotates the bearing, the roll bearing, all the gears, the moving bearing, and the sliding plane. <>

The working principle of the coal mill separator, the air from the wind sweep mill enters the separator with the material from the lower air duct, and after the inner cone is rectified, it decelerates and rises along the annular channel between the outer cone and the inner cone, and the coarse powder is slid into the coarse powder receiving barrel along the side wall of the outer cone through gravity settlement to realize gravity separation, and the air after gravity separation carries the material particles under the action of the diversion of the air guide blade and the rotation of the rotor, and forms a stable horizontal vortex powder separation area between the air guide blade and the rotation. The dust particles moving in the vortex will be subjected to gravity, wind and rotational centrifugal force at the same time, and the fine and slight particles will be sucked in with the air flow and flow into the back dust collector through the air outlet pipe to be separated as the finished fine powder. The coarse and heavy particles fall and collect through the inner cone to the coarse powder receiving barrel, where they are returned to the mill for further grinding.

V-type separator is a kind of static grading and breaking equipment specially used for the roller press, left in and right out, the cake material that comes out of the roller press is broken, and then the qualified fine powder in the material after breaking up is separated, which is conducive to the smooth operation of the roller press, improves the output of the system, and has the function of drying.

V-type separator is a kind of static grading and breaking equipment specially used for the roller press, left in and right out, the cake material that comes out of the roller press is broken, and then the qualified fine powder in the material after breaking up is separated, which is conducive to the smooth operation of the roller press, improves the output of the system, and has the function of drying. The structure is simple and the wear-resistant parts have a long service life. The use of air volume is small, the pressure difference loss is small, and the fineness of the finished product can be controlled by adjusting the wind speed.

Answer]: The intermediate silo type milling system is a shed cover system, and the powder feeder is installed under the pulverized coal silo to adjust the amount of coal fed to the skin. The working principle is to adjust the amount of powder by adjusting the speed of the scraper.

The function is to quickly respond to the change of boiler load and combustion. Compared to the direct blowing system, which regulates the output of the coal mill to adjust the boiler load, the speed and sensitivity of the pulverizer regulation is higher.

The high-efficiency separator is a new type of grading equipment developed in order to overcome the defects of centrifugal and cyclone separators, such as uneven material scattering and uneven grading flow field. In order to overcome the defects of centrifugal and cyclone separators, such as uneven material scattering and uneven grading flow field, a number of new grading equipment were developed. The widely used O-Sepa separator is considered to be a typical representative of the third generation of high-efficiency classifiers.

The material enters from the feed pipe and is sprinkled into the rising air flow through the dispersion plate, and the grinding medium fragments in the material fall under the action of gravity to overcome the resistance of the updraft and be discharged from the slag discharge port. The air flow carrying the powder rises to the grading section and enters the rotor through the guide vanes for classification. The guide vane can make the air flow and powder particles produce rotary motion, pre-classify, and capture the coarse particles thrown out by the rotor, and can also make the speed of the air flow enter the whole rotating material from the feed pipe, and sprinkle it into the rising air flow through the dispersion plate, and the grinding medium fragments in the material fall under the action of gravity to overcome the resistance of the rising air flow, and the height of the sub is evenly distributed.

The coarse particles captured by the guide blades fall onto the coarse powder cone and are discharged by the coarse powder outlet, while the fine particles and air flow enter the middle of the rotor through the rotor blades and are sent to the collection device by the fine powder outlet. The high-efficiency separator has the following characteristics:

1. The material is dispersed outside the grading area, and due to the role of the dispersion plate, the intermediate connecting air duct and the guide vane, it has the functions of static inertia classification and dynamic classification, and the material is highly dispersed and evenly distributed.

2. The grading area of the high-efficiency separator is narrow and long, the air flow field is balanced and stable, the grading performance is good, and the grading efficiency is high.

3. The processing capacity of the high-efficiency separator is large, and the volume can be smaller under the same processing capacity as other separators.

The motor drives the grinding disc to rotate through the reducer, the material falls from the blanking port to the grinding disc **, moves to the edge of the grinding disc under the action of centrifugal force and is crushed by the grinding roller, the crushed material overflows from the edge of the grinding disc, and at the same time is brought to the high-efficiency separator integrated with the vertical mill by the hot air flow from the nozzle ring (wind ring) at high speed, the main characteristics of the separator are low energy consumption, large processing capacity, and flexible combination structure: it can be exchanged with the fluidized bed crushing host to become a crushing classifier, which can be used with Raymond machine, ball mill, The combination of coarse pulverizers such as roller grinding separates the ultra-fine powder in it, which plays the role of low energy consumption and low pollution; It can be directly connected with dryers, conveyor belts, automatic packaging machines, etc., simplifying production processes and steps. After separation, the separator returns to the grinding disc and is re-grinded; The fine powder is then milled with the air flow and collected in the dust collector of the system, which is the product.

Glad your question, is sorting out the relevant information, wait patiently.

The working principle of the high-efficiency powder separator is as follows: the material is fed by the upper part of the powder separator, and then enters the sorting air flow after being fully dispersed by the scattering tray and the buffer bin. In the sorting area, by the action of cage blades and horizontal distribution plates, a horizontal vortex is formed, where the material is coarsely selected, and the fine powder finished product is discharged from the upper part together with the gas, and the gas is separated by the high-efficiency dust collector, and the finished product is collected.

When the coarse powder moves downward, it is sorted again with the secondary air and the third wind, and finally discharged from the bottom of the machine.

Hope mine can help you.

The grading chamber of the high-efficiency separator is a cylindrical enclosure made of steel plates. In the grading chamber, the blades are fixed on a vertical axis together with the spreading pan. The rotation is driven by an electric motor through a belt drive, which forms a strong centrifugal force in the grading chamber.

Under the action of centrifugal force, the large or heavy particles entering the grading chamber are thrown to the edge of the grading chamber and are no longer affected by the centrifugal force, and fall naturally, and then they are discharged as coarse powder through the coarse powder tube; Small or light materials are less affected by centrifugal force, hovering inside the grading chamber, being carried to a high place under the influence of air flow, and moving along the pipeline to the next component to be graded or collected. The magnitude of the centrifugal force in the grading chamber can be adjusted by adjusting the speed through the inverter, so as to achieve the purpose of separating the material of the specified particle size. <>

There are many types of separators, different types of suitable materials are also different, and different models are also made according to the customer's requirements for material fineness. The common separators include cyclone separator, three-separation separator, centrifugal separator, coal mill separator, calcium powder separator, etc. Later, a lot of high-efficiency separators and high-efficiency three-separation separators were developed, which were the new generation varieties that improved the yield and increased the yield on the basis of the original Shenhu.

The grading principle is advanced. The organic combination of gravity centrifugation and cyclone vortex multiple classification force fields is adopted, and the classification accuracy is high.

The lower cage rotor can help the accumulated particles to be lifted again, increase the grading capacity, and effectively reduce the fine powder content in the coarse powder.

The speed-regulating motor is used to adjust the spindle speed, which is convenient to adjust the fineness, high sensitivity and wide adjustment range.

The powder selection area was optimized and designed, and the spatial scope of the area was improved, and the powder separation efficiency was improved.

The high-efficiency and low-resistance cyclone dust collector can effectively reduce the resistance of the separating fluid and improve the dust collection efficiency.

A variety of anti-condensation devices such as elastic cleaners are optimized and designed in the machine, and the anti-condensation effect is good.

Dust-proof and vibration-damping fan without footing, easy to install and save investment. Slag grinding usually requires slag powder to reach a high specific surface area, and it is generally hoped that the specific surface area of slag powder is more than 420m kg. When the slag is ultra-finely grinded, the average particle size of the material entering the separator is only about 10 12 m, and the maximum particle size is only about 50 60 m.

Moreover, the density of slag is less than that of cement, and the ordinary separator currently used for cement raw meal and cement clinker powder slip first grinding system can not meet the production requirements of slag grinding system in terms of the performance of sprinkling, grading and finished product collection.

Specifications and models Feeding capacity (t h) Air volume (m3 min) Output (t h) Specific surface area (c g) Motor power (kw) N-1000 180 1000 36-60 3100-3300 75 N-1500 270 1500 55-90 3100-3300 90 N-2000 400 2000 72-120 3100-3500 132 N-2500 450 2500 135-150 3300-3600 132 n-3000 400 3000 110 3300-3600 160 n-3500 525 3500 126-210 3400-3600 200 n-4000 400-650 4000 190-220 3100-3500 200 n-4500 810 4500 162-270 3100-3300 280