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Jinan xin bei fa of single and double screw
2017-2-16

On single screw and twin screw extrusion can be seen the feature analysis of the double screw extrusion machine has the following advantages:

1。 The raw material adaptability, can adapt to high viscosity, low viscosity, high oil content, high moisture or thick, more oil, very wet and the other in a single screw would not bite (SSE) in raw material processing。

 

2. Less restriction on the granularity of raw material, can adapt to the granularity of wide or micro powder prepared from coarse powder particles of raw materials and single screw machining scope of specific granularity of raw material processing.

 

3. The material flow within the barrel is more uniform, you can add a steam, water, and whatever other auxiliary processing process proportion and get more accurately and actual demand.

4. The inner and exterior quality is better, can achieve very good homogeneous state and makes the material molecular structure configuration even and smooth surface in the process of extrude mold, product particle uniformity, good uniformity.

5。 Better cure homogenic effect, usually starch aging degree can reach more than 95% for the processing of aquatic feed can remain stable in the water and product loss and easy to digest absorb nutrients。

6. Under the same power output is higher, the good performance of hybrid heat in a timely manner for material homogenizing, sped up the material aging degree, reduce the material temperature fluctuations, increase the output of the extrusion product.

 

7. Product variety and wider adaptability, particles can be processed aquatic feed, high oil formulation, high moisture, high adhesive products and more colors, sandwich class, special shaped products.

8. Operation more convenient, can adjust the spindle speed according to the requirements of processing products, due to the characteristics, cleaning is very convenient, without dismantling the equipment after each processing.

 

9. Wear parts, lighter, often a wrong idea that single screw wear less, actually in the process of twin screw extrusion due to the stability of the materials flow and material flow characteristics, determine the material of screw and barrel inner sleeve wear smaller than single screw, although screw number over a set of more, but the spare parts cost is still lower than single screw.

 

10。 The production cost is lower, because of the double screw machine has good operating stability and the boot in the process of feed processing fee less material, less waste water, fewer partners, high heat transfer efficiency, high yield, high degree electricity production index, add spare parts cost is low, its final production costs relative to the single screw is far lower。

Under the single screw and twin screw extrusion machine list:

Single-screw twin-screw

Simple structure complicated

The spindle speed is adjustable

Low price is higher

Self-cleaning function no more

Simple operation difficulties

The floating so good

Submerged material bad good

Small particles > > 0.8 mm to 1.8 mm

Good mixing effect is poor

Poor curing uniformity is good

Oil content < 12% < 12%

High yield low

Product quality is poor

Product adaptability difference well

The raw material not flexible

Low water level is high

Low oil level is high

Low level of fiber is high

High protein levels low

High mechanical energy input is low

Good abrasion resistance is poor

Product specification is much less

Narrow range wide processing run

70% so far, the United States, South Korea, aquatic feed 100% aquatic feed production are all made of extrusion processing technology, is also a growing number of feed processing enterprises in China gradually replace traditional granulator with extrusion machine and other special aquatic feed feed production.

In current China market aquatic feed, because most of the aquatic feed production enterprise is limited by investment funds, usually choose cheaper domestic single-screw extrusion machine, but because of its simple structure and high technical level, production level is not enough, can only be used in the production of relatively cheap in aquatic feed processing of freshwater fish floating materials, difficult to produce submerged aquatic feed material and other high-grade products.

Some imported single screw type (such as WENGER products) can satisfy the production of high-grade submerged feed products, but its price is too high, have no a good cost performance.

We choose extrusion equipment should not only see the double screw extrusion machine is higher than the price of single screw extrusion machine, and more cost-effective integrated and should be considered the cost of production per ton product。

Domestic high quality double screw extrusion machine technical performance and manufacturing level has reached the advanced level, our price is higher than domestic single-screw extrusion machine, but the price is far lower than import single screw type, its production performance has exceeded imports in single screw machine and can fully replace imported double screw type, can not only meet the needs of farming in high-grade aquatic feed, and can achieve very high cost performance, should be the best choice of aquatic feed processing industry.

As large size, large output, and the emergence of the special double screw machine, using the double screw extrusion machine can gain greater efficiency, can give full play to the extrusion processing technology has wide use raw materials, starch gelatinization degree is high, the water stability is much higher than ordinary pellet feed, product density is adjustable for processing floating, slow setting, fast and high moisture, high fat feedstuff, the structure of the particles is loose to adopt after spraying technology, avoid the loss of heat sensitive materials, prevent environmental pollution prevention and disease resistance, improve the feed nutrition value, reduce the production cost and other unique advantages.

 

Beijing jindi sanfu puffing machine manufacturing co., LTD., on the basis of digesting and absorbing foreign advanced technology has developed the third generation of new GCISSP series double screw extrusion machine, its dynamic configuration from 22 kw to 315 kw, processing production of aquatic feed from 150 kg/hour to a total of 12 tons/hour 10 specifications products, can fully satisfy the current domestic aquatic feed processing (floating materials, quilts, slow fast heavy materials and high oil content, moisture, etc.), all kinds of pet food and plant tissue protein in food industry, leisure food, nutrition, food production requirements, such as host inverter main motor, transmission system is powerful, stable, reliable, barrel heating and cooling for one-piece forged structure, barrel inner sleeve and screw element using high wear-resistant alloy steel material, using new material and science and technology in the template, conditioning system adopts lengthened stainless steel two axle differential conditioning apparatus, equipment reasonable structure, beautiful shape, the product technical performance is close to or reached the international well-known brands such as American Wenger, Swiss Buhler imported double screw extrusion machine level, but its price only one-third of imported products prices, for the domestic feed and food processing enterprises with a low price, performance, perfect cost-effective twin-screw extrusion equipment.

Especially in view of the present domestic aquatic feed processing to the actual condition of floating materials for the leading product, Beijing jindi sanfu puffing machine manufacturing co., LTD., and to develop both can give full play to the advantages of double screw extrusion machine, and try to reduce the investment cost of processing aquatic products floating feed GCISSPF series double screw extrusion machine dedicated machine, its price is much lower than import single screw extrusion machine, and only with the price of domestic single-screw extrusion machine, can say with single screw investment can choose double screw extrusion machine, can produce a more consistent and more diversified products, large production, specialization of double screw extrusion machine will produce greater economic benefit.