What is an air mill like? What are the characteristics of pharmaceutical jet mill?

The main crushing mechanism of the jet mill determines its wide range of application, high fineness of finished products, typical materials are: superhard diamond, silicon carbide, metal powder, etc., high purity requirements: ceramic pigments, medicine, biochemistry, etc., low temperature requirements:

Medicine, PVC. By changing the ordinary air in the air source part to inert gases such as nitrogen and carbon dioxide, this machine can become an inert gas protection equipment, which is suitable for crushing and grading materials such as flammable, explosive and oxidized.

The jet mill and cyclone separator, dust collector and induced draft fan form a complete set of crushing system. After the compressed air is filtered and dried, it is sprayed into the crushing chamber at high speed through the Laval nozzle, and the material is repeatedly collided, rubbed and sheared at the intersection of multiple high-pressure air flows, and the crushed material moves to the classification area with the updraft under the action of the fan pumping force, and the coarse and fine materials are separated under the strong centrifugal force generated by the high-speed rotating classification turbine, and the fine particles that meet the particle size requirements enter the cyclone separator and dust collector through the classification wheel to collect, and the coarse particles descend to the crushing area to continue crushing. There are mainly the following types of jet mills used in China's industry:

Flat jet mill, fluidized bed jet mill, circulating tube jet mill, jet jet mill, target jet mill. In these types of jet mills, flat jet mills and fluidized beds are widely used in jet jet mills and circulating tubular jet mills. It is widely used in chemical, mineral, metallurgy, abrasives, ceramics, refractories, medicine, pesticides, food, health products, new materials and other industries.

Built-in vertical grading device, the product particle size is adjustable between D97:8 and 150 microns, with good particle shape and narrow particle size distribution. It can be used in tandem with a multi-stage classifier to produce products with multiple particle size segments at one time.

Jet mill (fluidized bed jet mill) is a compressed air that is accelerated into a supersonic air flow through the Laval nozzle and then injected into the crushing area to make the material fluidized (the air flow expands and fluidizes the fluidized bed, suspending and boiling and colliding with each other), so each particle has the same state of motion. In the crushing zone, the accelerated particles collide with each other at the intersection of the nozzles. The crushed material is transported to the grading area by the updraft, and the fine powder that meets the particle size requirements is screened out by the horizontally arranged grading wheel, and the coarse powder that does not meet the particle size requirements is returned to the crushing area to continue crushing.

The qualified fine powder enters the high-efficiency cyclone separator with the air flow to be collected, and the dust-containing gas is filtered and purified by the dust collector and discharged into the atmosphere.

We can provide both dynamic and static jet mills, static jet mills only need compressed air to complete the production, the smallest can reach d100<3 microns, the pressure range is 7-16 barThe medium particle size can reach 500 nm or finer, d90<2 μm (depending on the material properties).

Dynamic classifier with wear-resistant grading impeller, made of ceramic, tungsten carbide, isotope carbon steel, etc., wear-resistant protection (for material hardness greater than 4-5 Mohs hardness), less than 4 does not need protection (if you are not afraid of metal pollution), the fineness of the finest crusher can reach D100<3 microns, there is a reference model production line in China, in Shanghai, you can visit.

If you feel that the upstairs equipment is too expensive, you can also refer to the ultrafine pulverizer produced by our factory. Thank you.

Qingdao Shina Machinery & Equipment, a professional provider of crushers, classifiers, ball mill grading production lines.

GTJ series fluidized bed jet mill is one of the best pollution-free crushing and grading equipment manufactured by Yixing Jingxin Powder Equipment Technology, and this product is one of the company's innovative high-tech products. Set three patents in one, with the latest technological achievements, the use of cold isostatic pressure manufacturing of one-piece all-ceramic impeller unique technology, well-manufactured, is one of the typical models of pollution-free ultrafine grinding, lining, classifier wheel, auger feeding and nozzle are made of engineering ceramics. The automatic production line composed of GTJ fluidized bed jet mill as the core has the world's advanced level.

It is suitable for ultra-pure crushing of high-tech ceramic materials, lithium battery cathode and anode materials, luminescent materials such as trichromatic phosphors, 3D printing materials, supercapacitor materials, electronic materials, copy powders, fine chemical materials, magnetic materials and other ultra-fine powder industries; Forming an automated production line to realize mechatronics, pollution-free and dust-free powder ultra-fine processing.

1. The most prominent feature is high technical content, a body with many patents, and the linear speed of ceramic high-speed grading impeller is the highest in the world. Not only is it pollution-free, but it can also separate products with finer and narrower distribution;

2. The crushing mode is a frontal blow of materials and materials, and the impact force utilization rate is high, so the production capacity is high;

3. It has an independent ceramic grading wheel. After frequency conversion speed regulation, the required range of particle size can be adjusted arbitrarily to achieve the particle size distribution range required by various materials, so the particle size distribution range of the produced products is narrow;

4. It is suitable for ultra-fine grinding of brittle materials below hardness grade 8, and is the best model for crushing superhard materials;

5. The crushing process is mainly the collision of materials, and the collision of the wall in the crushing area is rare, so the wear is very small. The inner lining is all made of engineering ceramics, and the products are not polluted;

6. The structure of the machine is simple and easy to operate. The whole machine is made of SUS304 stainless steel except for the ceramic part. (then polished or matte) delicate, beautiful and lovely.

1. No heating, because the material is crushed in the state of gas expansion, the temperature of the crushing cavity is controlled at a lower temperature than the normal temperature, and it can work for a long time, and the temperature will not rise.

2. No pollution, because the material is driven by the air flow to close itself and collide with the crush, and the medium is not brought into the chain, and through the special treatment of the equipment, the material crushing process will not constitute pollution in the slag, and the iron content can be controlled.

3. Small wear, because the crushing effect is that the particles themselves collide with each other and crush, and the collision between high-speed particles and the cylinder wall is small, and it is suitable for materials below Mohs 9. To learn more about this, you can go to Suzhou Duohongwei Machinery to have a look.

Jet mill is a common industrial equipment used to crush materials into fine powders. When the flow rate of the jet mill is reduced, it may have an impact on other aspects, as follows:1

Reduced grinding efficiency: The ability of a jet mill to crush material is primarily determined by the flow and velocity of the high-velocity air flow generated inside it. When the flow rate is reduced, the grinding efficiency decreases, and it takes longer to complete the same grinding job.

2.Reduced production efficiency: Jet mills have low flow rates and take longer to process the same amount of material, which can lead to reduced production efficiency and increased production costs.

3.Equipment is susceptible to noisy damage: When the flow rate of the jet mill is lower than normal, the equipment may experience code streak problems such as clogging or overheating, resulting in vulnerable damage or shortened life of the equipment.

4.Increased dust emissions: Jet mills produce dust when working, and when the flow rate decreases, the amount of dust produced may increase, affecting environmental protection and workers' health.

Therefore, keeping the flow rate of the jet mill within the normal range is very important for the operational efficiency and production effect of the equipment. If the flow rate is found to be lower than the normal value, it is necessary to troubleshoot the fault or overhaul the equipment in time.

The low flow rate of the jet mill will not only affect its crushing efficiency and production capacity, but also lead to increased equipment load, increased energy consumption, and even affect the life and safety of the equipment.

The specific performance is as follows:

1.Crushing efficiency decreases: The crushing efficiency of the jet mill is affected by the air velocity, and when the air flow rate is low, its speed will also decrease, resulting in an increase in the residence time of the material in the crushing chamber, insufficient crushing or failure to achieve the expected crushing effect.

2.Reduced production capacity: The production capacity of the jet mill is directly proportional to the size of the flow rate, and the low flow rate will lead to a decrease in the production capacity of fiber dismantling, thereby reducing the production efficiency of the equipment.

3.Increased equipment load: When the flow rate of the jet mill is low per mu, in order to ensure its crushing effect, it is necessary to destroy the resistant jujube and increase the loading capacity of the material, which will lead to an increase in the load of the equipment, accelerate the wear of the equipment, and affect the life of the equipment.

4.Increased energy consumption: In order to improve the grinding efficiency, the jet mill needs to increase the air volume and increase the air velocity, which increases the energy consumption and operating cost of the equipment.

Jet mill is a kind of crushing equipment commonly used in Qin Minghe, and its main principle is to use high-speed air flow to crush materials into fine particles. If the flow rate of the jet mill is lower than the normal level, it may have a certain impact on its operation and crushing effect, which is as follows:

1.Reduction of crushing effect: The crushing effect of the jet mill is closely related to the flow and speed of the airflow, and low flow will lead to a decrease in the airflow velocity, which will affect the crushing effect of the material.

2.Reduced production efficiency: Low flow rates can lead to a decrease in the capacity of the jet mill, which can affect production efficiency.

3.Aggravated equipment wear: The jet mill needs to produce high-speed airflow when working, and low flow will lead to insufficient airflow speed, which will increase the residence time of materials in the equipment and aggravate the wear of the equipment.

4.Increased energy consumption: In order to maintain normal grinding results, the jet mill may need to increase the airflow pressure, which increases the energy consumption of the equipment.

Therefore, in order to ensure the normal operation and crushing effect of the jet mill, it is necessary to control the flow rate of the jet mill and keep it at a normal level.

Shredding a shredder with a shredder, will the crusher be crushed by the shredder? First of all, you should figure out whether it will be crushed by the shredder or will be crushed by the shredder of the shredder, or will the shredder of the shredder be crushed by the shredder when it is in the shredder?

Similar tongue twisters are the following:

1. Soup tower, tower slippery soup, soup hot tower.

2. Tear the word paper through the window, tear the word paper and eat persimmons. Navu.

3. Hold the gray chicken on the plane, the plane takes off, and the gray chicken wants to fly.

4. Eat grapes without spitting out grape skins, and spit out grape skins without eating grapes.

5. The craft will not be learned, and the materials will be used, and it will not be costly, and the cost will not be.

6. Put wisteria on Jianjian Mountain, hang copper bells on all sides of wisteria, wind blows rattan and moves copper bells, and the wind lives in rattan and sets copper bells.

7. There is a Ding family in the east of the bridge, and there is also a Ding family in the west of the bridge. One day, Qiaodong Ding's family said that Qiaodong's Ding's winter melon was good, and Qiaoxi's Ding's family said that Qiaodong's Ding's watermelon was good, but I don't know if Qiaodong's Ding's watermelon was good? Or is it better to have a good eastmelon at Qiaoxiding's house?

8, Jiang Jiayang, Yang patted the wall of Min's house, Jiang Jiayang knocked down the Yang family wall, the Yang family wall crushed the Jiang family sheep, the Yang family wanted the Jiang family to compensate the wall, and the Jiang family wanted the Yang family to pay the sheep.

9. A cripple, leading a donkey; a camel, pulling a cart; A blind man, holding a child. a lame donkey, crashing into a camel's cart; The camel's cart knocks down the blind man's child; The blind will fight the camel, and the camel will beat the lame.

Here's how to practice tongue twisters:

1) Opening and closing exercises, doing this exercise can solve the problem of oral opening.

2) Chewing exercises, doing this exercise can solve the problem of mucus muscle movement.

3) Lip exercises, doing this exercise will help solve the problem of lip movement, and it will also help with lip beautification.

4) Tongue exercise, doing this exercise will help the flexible movement of the tongue.

5) Tongue twister practice should be from slow to fast, step by step, with the purpose of pronouncing words clearly and accurately pronunciation, and do not blindly try to attack clearly; Otherwise, it will be more difficult to get twice the result with half the effort and develop the wrong pronunciation habits.

Summary. Compared with ordinary jet mills, the target jet mill has a higher grinding efficiency and a finer crushed particle size. This is because the target disc is set inside the target mill, which can make the material repeatedly hit the target disc and produce multiple impacts, shearing and friction during crushing, so as to achieve more adequate crushing and refinement.

In addition, the target jet mill can also adjust the position of the target disc and the flow field parameters to achieve the control and optimization of the particle size of the crushed product. If the content is helpful to you, I hope you can get your likes, thank you very much!

Excuse me, but please go into more detail?

Compared with ordinary jet mills, the target jet mill has a higher powder crushing efficiency and a finer crushing particle size. This is because the target disc is set inside the target mill, which can make the material repeatedly hit the target disc and produce multiple impacts, shearing and friction during crushing, so as to achieve more adequate crushing and refinement. In addition, the target jet mill can also adjust the position of the target disc and the flow field parameters to achieve the control and optimization of the particle size of the crushed product.

If the content of Kuxiang is helpful to you, I hope to get your likes, thank you for the non-banquet!