Floating beneficiation process, the floating mineral grain size and sorting indices great relationship. The flocculation of the ore particles to the bubble during flotation is the basic behavior of the flotation process. The adhesion of the ore particles on the bubbles directly affects the quality of the flotation beneficiation, but the adhesion of the ore particles to the bubbles is not only related to the ore particles. In addition to its own hydrophobic size, it is also related to the size of the ore. In general, the small size of the ore particles (except for less than 5 to 10 microns) adheres to the bubbles faster and is firmer. On the contrary, the particle size is coarser, and the adhesion to the bubbles is slower and less firm. The following is an analysis of the stress on the particles attached to the bubbles, as shown in Figure 6-32. As can be seen from Fig. 6-31, the adhesion of the ore particles to the bubbles is affected by the following three forces. (1) The force F1 is the gravity of the ore particles in the water, and the direction is downward, which is the force for removing the ore particles from the bubbles, which is equal to the gravity of the ore particles in the air W=d3δg.陋 Subtract the buoyancy in the water f = d3△g, ie: Where d is the diameter of the ore; the density of the delta; △ - the density of the water. It can be seen from the above formula that the magnitude of the force F1 is proportional to the cube of the size of the ore (d). The larger the ore, the greater the force from the bubble. (2) The force F2 is the surface tension of the ore particles attached to the bubble, specifically, the component of the surface tension acting on the three-phase wetted periphery in the vertical direction, and its direction is upward, which enables the ore particles to The force that remains attached to the bubble, the magnitude of this force is: F2=2πγσ gas-liquid sin θ in the γ-adhesion surface radius; σ gas-liquid-surface tension at the gas-liquid interface; θ——contact angle, degree. It can be seen from the above formula that the adhesion F2 of the ore particles on the bubbles is related to the contact angle of the ore particles, and the contact angle is large, that is, the mineral particles having a large hydrophobicity, and the force F2 adhering to the bubbles is also large. (3) The force F3 is the pressure of the molecules in the bubble on the attachment surface of the ore. This force is the force that causes the ore particles to detach from the bubble, so the direction is downward. Its size is: Where R is the bubble radius. As can be seen from the above formula, when the large bubble (R is large), the pressure F3 is small. When the three forces F1, F2, and F3 are in equilibrium, that is, when the ore particles adhere to the bubble and are close to the falling state, then Equation (6-1) is called the equilibrium equation for the attachment of ore particles to the bubbles. It can be seen that the relationship between the contact angle 臼 and the surface tension, the size of the ore (mine mass), the adhesion radius r and the bubble radius R in the relatively static state between the ore particles. However, in the actual flotation process, the ore particles and the bubbles are relatively moving, and the shedding force between the ore particles and the bubbles is more complicated than at rest, and is much larger than that of the above formula. However, some relations between particle size and floating beneficiation can still be qualitatively seen from formula (6-1). (1) When the ore floatability is good, that is, the mineral with a large contact angle, the floating dressing particle size d can be coarser, of course, there is a certain limit, the so-called upper limit of the particle size. (2) For coarser-grade floating beneficiation, it is more advantageous for the bubble to be larger (R large), or, in the case of larger bubbles, the contact angle of the floated ore dressing mineral can be floated and oreed under a small condition. . However, when the bubble is too large, the stability of the bubble itself is also poor. According to the above analysis, the floating beneficiation particle size is one of the important factors affecting the performance of floating beneficiation. In order to obtain better technical indicators of floating mineral processing technology , it is required to make the grinding fineness reasonable, not only to separate the useful minerals, but also the coarse particles should not be greater than the upper limit of the floating mineralization: the sulfide minerals are generally 0.2-0.25 mm. The natural sulphur with good buoyancy is 0.5-1.0 mm; the coal is thicker, 1-2 mm. White Kraft Paper Open-Window Bag
1.Material:this type of paper bag is made out of 100% natural virgin wood pulp or
recycled paper,which has no pungent odor. The raw materials which are selected
carefully and imported from USA will be dealt with special process.The imported
original wood pulp with 450 ° c high temperature sterilization is not easy to
break and tear up.All the paper we used to manufacture the paper bag is not
only super durable and reinforcement but also ECO friendly ,biodegradable,compostable
environmental-friendly,natural friendly and PLA recyclable Owing to this good
quality materials.We have very high standards on controlling raw materials.So
that the supporting weight of our paper bag holds up to higher than those at
the market. Reuse the paper bags
as many times as you like and recycle them when you are done for a greener
Earth! We offer a wide variety of material and color option to meet your
requirements.we also supply PE coated,poly or aluminum laminatived or double
glud lining inner paper,which is water proof,oil proof,grease proof,moisture
resistance,weather proof,anti-slip anti-skid,etc.
2.Size:Multi customized sizes are available,we accept personalized
sizes.Different sizes including small,medium and large measurement which are
suitable for different usages.It`s versatile.we category for kinds of
industrial usage.
3.Handles:One reasons
of this type of paper bag of excellent quality is for seeking a more luxurious
handle solution all the paper bags handles are produced by fully automatic machines.
Sturdy round twisted,flat,die cut,holes,eyelet,patch,cotton robbin,grosgrain
rope,PP rope handles of paper bags are made of 100% cellulose and fiber .They
do not come out with an ease even you pull them with hard force.These handles
are adhered with good quality super glue by fully automatic machines
instead of handmade.which looks more elegant,clear,beautiful,sanitary,flat,reinforcement
than handmade.So that it creats a smooth,elegant finish for the bags.No stray glue any where like other paper
bags do.it's more convenient and make purchase easy to carry,take
away,to go etc.
4.Bottom: Reinforcement
flat ,square rectangle,block bottom is easy to stand up ,which is neat and flat
without glue outside.We deal with the bottom carefully in order not to break
easily.You don't need to worry about stuff fall down from the paper bag and
make a trouble mess.A good quality bottom will be more useful and helpful which
is also made by fully automatic machines.It is not only solid but also
strong enough to support heavy duty weight.It can take whatever the light or
heavy stuff inside the paper bag.They are not only durable and convenient but
also environmental friendly compostable and recyclable.
5.Printing:We have the best advanced
technology fully automatic printing machines which can support up to 8 colours
printing.We accept customer designs and logos.Gravure printing,embossing
printing,debossing printing,hot stamping,screen printing,UV printing,offset printing,flexo
printing with CMYK pantone non-toxic water based ink are all available. Our
printing has a pretty good quality as the printing of the designs is not only
more durable,sun proof,weather proof but also beautiful and bright,which absorbs ink well and is
stable not easy to tide the color.We aslo supply plainpaper bag, which are perfect for craft and DIY.
Printed and embellished as you may wish. Personalize the bags to make them
uniquely yours. Print your own business logo and use them as retail carry bags.
6.Surface handling:we supply glossy and matte surface dealing.This all depends on
customer`s requirements.Whatever the glossy or matte surface makes the bag more
luxurous.
7.Appication: paper bags with kinds of
hanles are perfect for packing shoes,clothing, wine, gifts,etc.They are great suitable
for any occations and affordable for small to medium businesses, parties &
events, wedding reception and start-up business.
8.Quatity inspection systerm : One of the reasons for our good Quality is that inspection system is
best of its kind. We're proud of our quality control system. Our standards are
very high. we put great stress on quality of products.Almost every process is
computerized.. All products have to pass strict inspection before they go out.
I believe the quality is soul of an enterprise. So we won't sacrifice the
quality for quick profit.All of our products are suitable for the world market.
Our products has always come up to international standards. We have trained analysts
to do quality analysis of each process when we make the product.We also provide
quality analysis training as part of training for new workers plus a week of
futher training every year. So our products are well known for their fine
quality. All the paper bag are received a warm welcome in the world market wherever
they go.Our clients are all satisfied with them.
9.Sample:We offer free samples between
three and five days, but excluding complicate condition upon customer`s
requirnments.For instance, we charge you like 50 dollars for samples,but we
will refund you after placing an order.The expenses of samples delivery can be
nagotiated.
10.Our
factory: Jinan
Xin Shun Yuan Packing Co., Ltd is located in Ningjiabu Industrial Park,Zhangqiu
district, Jinan city, Shandong province, China.It originated in Shandong
Printing Factory (founded in 1994).It is professional manufacture of new
environmental-friendly packing bag based printing processing enterprise with
more than 12 years of experience in production and management.Recent years, our
scale is expanding. Covering an area of about 2 million square meters. And also
expand our equipment, like unit type flexo printing machines, satellite adagio
printing machines, lamination type flexo printing machines, gravureprinting ,
dry laminating machines, automatic square bottom paper bag machines, food paper
bag machines, automatic control stick bag machines, trilateral, edges the
closure, self-reliance paper bag machines, CNC cutting machines.We have 8 sets
flexo printing machines, 1 set Gravure printing machine;12 sets Paper bag
machines ; 5 sets cutting machines, tin tie machines;30 sets heat sealing
machines ; 3 sets glue coating machines , etc. We have150 staff menbers,18
management staff ,12 salesmen and 120 workers. We have ISO9001, FSC certificates.
11.Packing & Shipment:Standard export packing, 250PCS
or 500PCS each carton. We try our best to make sure the packing is
seaworth and strong enough to stand the rough handling in a long distance
shipment .In order to ensure the packing is moisture resistance,water
proof,weather proof etc.The packing corrugated cartons therefore are lined with
plastic bag from inside and strengthened double solid plastic straps.We have
rich experience on packing.We normally do not only provide air transportment
and sea transportment but also multi modal combined transportments,which is up
to customer`s requirements.
12.Payment methord: L/C,D/A,D/P,T/T,Western
Union,MoneyGram Paypal payments.
13.Our service:we are in 24/7 service,we are responsibilable for replacing the defect
products.Feel free to talk to us.
White Paper Bag With Window,Bakery Bags With Window,White Bag With Window,Paper Cookie Bags With Window JINAN XINSHUNYUAN PACKING CO., LTD , https://www.xsy-packaging.com