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Sand mill Full-time Job

2022-10-25 09:14   Independent & Freelance   Darzāb   56 views
Job Details

The sand mill machine is currently the most widely adaptable, most advanced, and most efficient grinding equipment. The grinding cavity is the narrowest, the gap between the levers is the smallest, and the grinding energy is the most intensive. With the high-performance cooling system and automatic control system, it can achieve continuous material Continuous processing and discharge greatly improve production efficiency. Sand mills, also known as bead mills, are mainly used for wet grinding of chemical liquid products. According to the performance, the sand mill machine can be divided into horizontal sand mills, basket sand mills, and vertical sand mills. Among them, the most widely used are horizontal sand mills and vertical sand mills.

 

The sand mill machine mainly relies on the high-speed rotation between the grinding medium and the material to carry out the grinding work. Sand mill machines can be divided into vertical sand mills and horizontal sand mills according to their appearance. So are these two just the difference in external form? Let's take a look at the following, what is the difference between them in performance.

 

Different Processed Products

First, compare it from the difficulty of manufacturing. Since there is no sealing problem during the working process of the vertical sand mill, the manufacturing is easier and the cost is lower. Therefore, vertical sand mills are more suitable for manufacturing products with relatively low product requirements but high output requirements.

 

On the contrary, the manufacturing cost of the horizontal sand mill is relatively high, but it can ensure the tightness of the material, and the material will not be contaminated during the processing, so the purity of the product can be guaranteed. Horizontal sand mills are more suitable for grinding products that require high precision and fineness.

Different Grinding Fineness

From the point of view of the fineness of the grinding. After the grinding medium in the grinding cavity of the vertical sand mill is affected by gravity, the filling rate of the medium is low, and the distribution is uneven, which becomes the unsatisfactory grinding effect. The horizontal sand mill can well overcome the influence of gravity on the medium, so it has a better grinding effect and can meet the fineness requirements of the product.

Cost of Processing Materials

To compare the cost of using vertical sand mill machine and horizontal sand mill machine. When the vertical sand mill is stopped, the grinding medium is deposited on the bottom of the grinding cavity. If the machine is turned on, the blade and the beads will generate strong friction. And because the grinding beads are too concentrated, it is easy to cause broken beads (grinding media fragmentation).

 

On the contrary, the horizontal sand mill can greatly reduce the occurrence of such things. Because the contact surface between the grinding medium and the blade in the horizontal sand mill is larger, the grinding beads will not be too concentrated.

 

Different Equipment Manufacturing Materials

Analyze from the material aspect of the horizontal sand mill machine and vertical sand mill machine.

Vertical sand mills generally use ordinary materials, while horizontal sand mills generally use better materials. Generally, the material used in the horizontal sand mill is tungsten carbide metal material. The horizontal sand mill is to place the vertical sand mill horizontally. But, due to the influence of gravity and the difference in manufacturing materials, there are many differences in the products produced.

 

They all have their own advantages. In general, the production cost and use cost of vertical sand mill machines are lower; but horizontal sand mill machines can produce higher quality products. As a customer who purchases equipment, we can only choose the right equipment if we understand their respective characteristics and the differences between them.

How a Handheld Mixer Works

To use a handheld mixer, you first plug it in and attach two balloon whisks. Place the mixer in your bowl of ingredients and select the speed setting you want. Turn it on by pushing a switch. The whisks start to rotate due to an electric motor inside the device. The whisks will mix, beat or whip the ingredients, depending on your speed setting. They will also incorporate air into your ingredients, giving them a "fluffier" texture. You often move the bowl while using your mixer, to make sure every ingredient is thoroughly mixed.

How a Stand Mixer Works

A stand mixer works similar to a handheld, with the difference that you attach a bowl (often a stainless steel bowl) to it and you do not have to hold the mixer. After affixing the bowl to the mixer, you add the preferred attachment (such as a dough hook for bread ingredients) and select the desired speed setting. You then flip the switch, and a large motor will rotate the attachment. Let it work as long as it needs. You may have to scrape the attachment during the mixing, such as when too much of the dough sticks to the hook.

Owning a business that needs filling satchels and bottles requires a proper filling machine. These machines help you in filling hundreds of bottles in less time. It increases the flow of your work. There are many filling machines available in the market based on different technologies. However, you should buy the one that is required for your company. It will improve your company’s workability.

Below are different types of filling machines, listed and discussed, about which you should know.

Liquid filling machines

They are water filling machines that are used to fill beverages. One of the most significant advantages of this machine is that it disperses the perfect amount of liquid to be filled.

Usage: It is used to fill all sorts of liquids, including water, alcoholic beverages, aerated drinks, sauces, cooking oil, soup, salad dressings, and many more things.

These machines are available with various specializations. They are:

Manual liquid filling machine

Semi-automatic liquid filling machine

Automatic water filling machine

Inline liquid filling machine

Rotary liquid filling machine

Piston liquid filling machine

Powder filling machines

These machines are made using spiral feeding technology that enables proper filling with zero-drip. They are ideal for filling powdered and granulated items, which are both free-flowing and non-free-flowing.

Free-flowing items include granulated sugar and table salt. They are items that cannot retain their shape when external pressure is added. Non-free-flowing items include powdered milk and brown sugar. They are products that can retain their shape even after high compression.

Usage: They are used to fill packets of additives, starch, pesticides. Certain cosmetic products are also packed using this machine. The food, beverage, and chemical industry also uses this machine.

Basics of the Basket Mill

Basket mills feature a rotating basket that uses centrifugal force to accelerate the grinding media, much like an amusement park ride where passengers lean against a wall while the ride rotates at high speeds. Unlike the ride, which merely locks passengers into place, the basket contains a disk installed with pegs to permit grinding.

As illustrated in Figure 1, the top, bottom and sides of the basket are perforated to allow the product to enter. In the center of the basket the grinding disc attaches to a shaft that is centered in the basket drive shaft. This inner shaft is braked to prevent the disc from rotating with the beads and product. The sieve basket rotates around the fixed grinding disc.

The basket is filled about 80 to 85 percent by volume with the grinding beads. When the basket rotates, the centrifugal force compresses the beads against the grinding disc. The shearing forces for dispersion are created between the fixed disc, the moving bead mass and the rotating basket. The blocks mounted to the top and bottom of the basket along with the grinding disc create turbulence for higher shearing force.

In most cases, steel, glass or ceramic beads with a diameter of 1.2 mm for a smaller basket, and 2 mm for a larger basket, are best for coatings dispersions. However, bead size is ultimately determined by the basket’s slot sizes.

Updated Basket Mill Designs

Basket mill design improvements have helped increase productivity and produce finer dispersion quality, with slot widths as small as 0.5 mm. The new design substantially increases pumping rate and media compression performance.

 

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