Non-Gravity Mixer

Mixing principle

The two axes of mixing interior rotates to different sides and paddles attached to the axes forms fluidized area by diffusing mixed materials to different directions according to stable apex speed.

  • moving direction of materials
  • arrangement of plates
  • mixing field and transfer field
  • formation of plates

At this time, the movement of materials is concentrated on the higher center part from the bottom of mixer, and therefore, the effective volume of mixing room increases, and as the effective volume increases, the collision and rubbing between materials decrease.

Also, as the contacting section between materials and the mixing room, there is no damage because of collision and rubbing, and on the other hand, mixer itself does not cause inner rubbing because of material, so it keeps the shape of particle, and as it does not press rotating object or ventless etc., it prevents the leakage of materials on the seal part and proceed mixing.

Like this, Non-gravity mixer became created the new concept of powder mixing by solving problems of eruption and leakage etc, as well as precision of mixing.

Mixing characteristics
The fluidized Zone Mixing
By forming a fluidized zone in the mixing room, it proceeds rapid mixing in a Non-gravity condition regardless of diameter of materials, specific gravity, and shape
Homogeneous Mixing
By diffusing and moving materials in actiniform by the dynamic structure of paddle, it mixes small adding agent even in mass ratio of 1:100,000.
Gentle Mixing
As the speed of rotation axis is slow, the impact or shearing force on material is not caused. So it can proceed mixing without damaged materials.
Short Mixing Time
In case of powder mixing, the time that takes to mix is so short, and it takes less than 1 minute and only in a few seconds.
Economical Mixing
As it proceeds mixing in a short time, it reduces operation cost and maximize productivity at the same time, and also mass production with small-scale equipment. Therefore, initial installation charge and driving cost are low.
Filling Level
All mixers have its own effective space that material can move within the mixer. Generally, half of total volume of a mixer is called as working capacity, and it decides the unit productivity of a mixer.

Like this, the unit productivity of the mixer forms an axis of production process, and it is the index to measure total productivity.

However as modern industry becomes more diversified and accurate, mixers also became require elasticity in fixed space, and the Non gravity mixer can produce products in the most effective way in small space responding to the expectation of this production process.

In case of using .D.B or P.M.S, it is desirable to fill more than 120% of materials, and the amount to fill that can be mixed is MAX.140%,MIN 40% as the picture.

In case of mixing beyond the range, please contact and ask to us. Also F-100 that is shown in dimension of this Non gravity mixer is indication of working volume that can be actually mixed.

Full volume is almost 2 times of working volume. Also as indicated in volume, the value multiplying bulk density of a material is conversed to Kg.
Liquid Adding System

In modern industry process, adding liquid on powder happens a lot. Non gravity mixer can add liquid with wide range of viscosity and oil or wax type, and especially it is excellent effect in oil coating. The method to add liquid to powder is divided into active input and passive input, and according to the physical properties of powders or liquids, the design condition differs.

Design condition
• absorption capacity of powder
• size of particles of powder
• viscosity and input amount of liquid
F.D.B & Spray Nozzle
F.D.B System(Liquid Adding & F.D.B System)
IIn case of adding liquid to powder, there is a tendency for materials to get crushed. To prevent this agglomeration, it maximizes the uniformity of material with F.D.B. It is high-speed body of revolution, and stimulates uniform connection between powder and liquid through forming material film on higher part of mixing room.
Pin Mill System(P.M.S)
In case of mixing powder that requires particle crushes by shearing, Pin Mill System is consisted with fixed cover attached with Pin on two F.D.B. When adding liquid, in case of material with strong self cohesion and hygroscopicity, the best uniform mixture can be obtained.
P.M.S(Pin Mill System)
N.P.C(Chopper System)
n case that powder particle is finer than liquid (No more than 10), the agglomeration of material increases greatly, so you should be careful in liquid particles than powder. N.P.C(New Power Crushe) is high speed body of revolution that crushes blocked materials or crystal of powder particles, it can contribute to the simplifying work of complicated industrial process.
Study on segregation phenomena and attachment prevention in mixing particles
In mixing process of most feed and food, the quality of mixing can be raised by clearing segregation in the course of mixing by binding particles to coarse particle by adding sticky liquid such as Vegetable oil, Fat, Molasses. This method of adding binder to liquid type can be applied in mixing powder in feed as well as overall industry.
However, this sticky liquid breaks up mixing process by building up material by sticking to casing part of mixer. However please concentrate on that these problems can be solved with proceeding way of mixing, operation of equipment and design, and Non gravity mixer solves the problems (attachment of material, breakage, and heat generation etc) when adding liquid on the basis of unique technology and experience.
Avoiding segregation of mixture
Most feed is divided into various sizes of particles, and differences in diameter and density cause segregation during the course of mixing. In this case particles has characteristics that are not mixed well by uniting themselves.

For example, in case of Selenium, it is input to most feeds by 0.4ppm(0.4gr/ton), and in case that 10 times of standard amount, so as to 4ppm is input into a part of feed without being mixed uniformly, the animal that is feed this can meet a serious problem.

Therefore, this kind of diffusion (also, mixture) of particle atom such as selenium should be done very delicately, and to overcome this problem even partly, before performing main mixing, sometimes pre-mixing is done such as minerals and vitamins. In these cases, also, the particles of premix should be mixed perfectly with mesh feed.

Even after finishing this mixing, danger about segregation is continued, and the emission of material is important too. Among this emission, to prevent segregation phenomenon, emission should use "Bottom Drop" or "Bottom Door" method. Also, even when filling mesh feed or unpelled material into silo, you should pay attention to segregation, and the most important thing is that you should not fill materials in shape of corn or hill.
If material is filled in corn shape, material’s particles flocks in the center according to the difference in density and diameter, it is filled in tree shape, and the flow of materials becomes cone flow or central flow, and also the material of central post would come out first. In this core part, only the density of premix becomes high, and although the amount of medicines and minerals is not fetal, it can make some limitations in activity of animals.
Solution to the sticky problem
Now a premix manufacturing company in a foreign country is adding molasses as binder into ribbon mixer, and in the ribbon mixer, mixing happens in the backside of ribbon as the principle in other ribbon mixer.
At this time, the problem is molasses and mixture becomes like wing of airplane by attaching on the back of ribbon, and after some hours, mixer stopped mixing, and the production chief input 2 persons to clean the mixer for two hours for only few hours mixing work. Also as the company uses limestone as premix excipient, abrasion on ribbon is so serious. The task of the Norway company is to add sticky liquid into mixer, not damaging the function of the machine.
On the other hand, a premix manufacturer in Denmark who use “Non gravity mixer” to add similar amount of molasses cleans only once in a week to prevent the material to be built up in mixer. The mixing in “Non gravity mixer” is happening at the center not happening at the edge like ribbon mixer, even though molasses are built up in paddle, it does not break up the mixing.
Relatively big amount of molasses can be added, and the best solution to minimize to build up in “Non gravity mixture” is in the picture 1. According to this solution, to prevent direct spraying of molasses or binder on paddle system, Flow Distortion Bar (F.D.B) sprays material towards body before liquid sticks to mixer, and it prevents material from sticking or caking on the wall or other part greatly.
In case of Molasses, it is usually added by spray automization, and there are two ways to spray in most effective way.
Firstly, to ease automization by increasing fluency by heating molasses.
Secondly, there is a way to dilute molasses with 10% water, and the better spray nozzle diffuses, the better material is absorbed unto mixer without being built up. However, to diffuse and mix sticky liquid in the most effective way, other operation besides general operation is needed.
The first solution is to over-fill 40% into mixer. For example, 2,000L “Non-gravity mixer” is general feed material, and should load material with 1.2 ton, and in this case, mixing time and mixing cycle get longer a little. These over time is differentiated according to the amount of liquid, and if you want to only bind or interlock small particle and large particle, it is possible with only approximately 2% of liquid. At this time, it takes about 90sec for mixing including filling, mixing, liquid adding and emission.
In this case, the theological amount of mixer is 48ton/hr, and to get his productivity, it is required to divide dosing system into 3 or 4 at least not measuring with a big scale. This method can measure more accurately as it can measure in small unit. The technology to prevent direct spraying of mixer’s liquid through flowing is helpful to diffuse relatively small particle and liquid in mixture perfectly.
Also, the material such as limestone(bigger particle than about 850) that is crushed into relatively big particle has so big “internal friction” during the overall process of mixing, it seems to be able to spray directly to mixer without F.D.B, but as it has so big interior friction force, it should increase power when adding driving force or sticky liquid. No material has problem in mixing within “Non gravity mixer”.
However, the important thing is how to add liquid not to stick to wall or other parts, and if it can be solved, more than two nozzles can be used.

Limits to Liguid Addition
The limitation in adding molasses into mixer depends on the absorption ability of mixture about molasses, and if molasses has relatively big particle as pellet, the particle becomes sticky easily. However, in case of particle, the smaller is particle, the bigger the surface area becomes. So the absorption ability on the surface of particle would become high. In case of most feed, the relatively minute particle of mixed material can absorb relatively high-density sticky liquid. However, in case of high density, more time is required to mix, therefore, productivity can be reduced.
Now, for pellet press, “Non-gravity mixer” that mixes by adding 7% molasses in mesh or meal are being used a lot. If you would like only to bind the particle of mixture to improve the stability of product, it is possible only adding 2% molasses, and “Non gravity” is used a lot for this usage. In any cases, it is important how to operate sticky liquid to improve the final quality or overall function of mixer.
As discussed in advance, there are several elements to obstruct uniform mixing in mixing process. And among those, the difference in density and diameter are divided into the most important factor.
Also when adding liquid, the problems of solidification of material by viscosity that was serious before, and other problems such as mechanical loading, cleaning, and maintenance of machine are becoming serious problems in powder mixing in several industrial fields as well as feed industry.
These problems can be solved perfectly how to operate and mix liquid. We are certain that “Non gravity mixer” would solve these problems with rich technology and experience.
Lining & Coating

Prevention of Wear and Tear

The materials such as sand or pebbles that are used in construction supplies is the cause to reduce the life of machine by generating frictional force within inner wall of mixing room or inner structure during mixing.

But Non gravity mixer can increase the life of machine by concluding Lining & Bolting at the edge of inner wall or plates of mixer as it is a material with strong abrasion resistance such as strong Hi-Cr, and string hardox etc.

  • Hardox Plate
  • Teflon Coating
  • U.M.L Sheet Adhesion

Prevention of Sticking

When adding liquid with high viscosity such as molasses or sugars that is added to food, lots of material sticks inside of mixing room. But as Non gravity mixer performs lining and coating with material with high dyplastic such as Teflon, it prevents loss of materials caused by attachment and increases work efficiency in production field.

Drive and Discharge System

Discharge Door
  • Open
  • Close
F-20 20 660 470 400 900 470 485 655 250
F-60 60 960 680 570 930 9680 810 810 280
F-120 120 1110 840 720 1140 840 810 930 450
F-200 200 1310 1000 850 1300 1000 950 1150 800
F-350 350 1630 1800 1250 1000 1490
1250 1100 1300 1150
F-500 500 1805 1850 1360 1160 1640 1630 1360 1180 1380 1500
F-750 750 2100 2150 1000 1320 1915 1000 1480 1680 2800
F-1000 1000 2200 2300 1250 1450 1980 2180 1110 1560 1760 4200
F-1500 1500 2530 1260 1675 2350 1150 1725 2050 4500
F-2000 2000 2930 1500 1870 2580 1450 2040 2300 6000
F-2500 2500 2500 1620 1980 3350 1550 2100 2420 7000
F-3600 3600 2900 1750 2320 3850 1600 2500 2500 8000
F-5000 5000 3150 2000 2500 4100 2000 2500 2500 10500
F-6000 6000 3350 3250 2700 4200 2250 2500 2500 12000
F-8000 8000 3730 3540 3010 4550 2450 2500 2500 13000

• Nominal filling volume to the top of the rotor shafts

• High housing is used
   1) When FDB is installed.
   2) When Pin Mill System is installed.
   3) When spraying of liquid is included.

• All weights are approximate, and will depend on different options. Technical data might be changed without warning.