Extruder belongs to a kind of puffed food processing equipment, such as processing of daily life rice, corn, soybeans, wheat, etc. Its main principle is the mechanical energy into heat energy, machine rotation when the heat generated by the squeezing food cooked, after puffed food is the most obvious feature of volume.

The basic function 1.

Extruder functional diversity make it widely used in Feed, food and industry, with extruder (dry, wet, single screw or double screw) as the foundation, we introduce the expanded during the processing of one or a set of functions, these functions are:

Cohesion function: in the process of expansion, can those food or Feed ingredients together and condensed into discrete small pieces.

Degassing: food containing bubbles or Feed raw materials will be removed in the process of expansion of bubbles.

Dehydration effect: in general food or Feed puffing process, water content in the original based on loss of 4% to 4%.

Expansion effect: extruder operating condition and configuration can control the density of pet Feed and aquatic Feed, such as sinking or buoyancy.

Gelatination: puffing cooking can be found in food or pet Feed during the processing of the starch (from various sources, such as tubers or grain) pasting.

Grinding effect: in food or Feed during the processing of raw materials can be grinding to a certain extent in the extruder.

Homogenizing effect: raw material of the extruder homogenizing effect change not attractive structure and make it into a more acceptable form.

Mixing action: in the process of expansion, there are various kinds of extruder screw to choose from, can make the extrusion machine produces the mixing amount of expected.

Pasteur type sterilization and sterilization: in the food or Feed puffing process, raw material available puffing technology Pasteur type sterilization or sterilization.

2. The Feed extruder

Feed extruder for single screw extrusion type extruder. Is mainly used for puffed food, livestock and poultry Feed or for puffed a single raw material, can also be used as vegetable oils and drinking wine in the production of raw materials in advance. Twin-screw extruder extrusion type, mainly used in high-grade aquatic products, Pet feed production and processing, especially with high viscosity material processing.

        SPHS extruder (wet) extruder SPHG raw materials (dry)

3. Key features:

1), novel design, compact structure, high production efficiency.

2, reliable, durable, low failure, convenient operation and maintenance.

3, simple and convenient use, smooth transmission, low noise.

4, the main part is made of special alloy material after heat treatment and, long service life, Feed production cost is low.

5, dry puffing technology, using the way of heat, steam system is not required.

6, the screw design with a strong self-cleaning function, screw screw groove can purify, so change of formulation and product varieties, need not stop cleaning, screw strong pumping function, material with sluggish diffusion effect is stronger, to promote faster, product quality is relatively stable.

7, screw discharging mouth adopts modular design, easy to adjust, the price is cheap.

8, can be equipped with automatic feeding system, feeder for today's world the latest model of switched reluctance conveying screw speed motor control level, the other end connected to extrusion machine, expanded production could be controlled by adjusting the feed rate (quantitative feeding, and can effectively prevent material knot arch).

9, cutting system, independent of cutting device connected with the body is convenient, quick and variable speed cutting segment, can easily adjust the cutting knife, can easily adjust the cutting knife and template, the gap between different templates can be produced according to need, to ensure that the required diameter and length, produce product of different specifications and shape.

10, processing the flotation Feed without glue, can maintain stability for more than 2 hours in the water.

11, machinable ￠1-20 mm round products (template according to the need to make to order).

12, spindle for composite structures, standby extension expansion shaft can adapt to different raw materials.

13, especially suitable for small and medium-sized equipment in scientific research organs, special in the or farms, small Feed factory use.

14, dry wet amphibious, in single screw extrusion equipment more than 30 kw additive conditioning implement wet swelling, and both are capable of dry wet amphibious.

Main components

Said: screw extruder is one of its main components, the parameters of the screw structure has a diameter, pitch, root diameter, spiral Angle and blade section structure. Extrusion parts of length to diameter ratio and screw and expansion of cavity in the body wall clearance also has a great influence on the performance of extruder.

Discharging mode: is the product through the final checkpoint extruder, his description of the product shape, texture, density, appearance, characteristics, and the output of extruder has very big effect.

Bearing box part is mainly composed of bearing housing and shaft, bearings, bushings, left and right end cover, seal, round nut.

The oil filter of the cooling system is mainly composed of oil pump, cooler, oil filter, valves, connecting pipe fittings, etc.

4. The Faq

1. The equipment operation after a period of time, bearing wear. Need to adjust bearing clearance;

2. The steam flow back into the feeder, cause the clogging in feeder;

3. Material handling extruder in the absence of modulation processing will often get stuck.

4. Puffing material is different, the pressure, temperature and different screw configuration requirements, puffing spiral cavity should make a corresponding adjustment, should according to different requirements processing corresponding material.

5. A common classification of extruder

First: corn extruder: mainly used for puffed corn, yellow rice grains such as corn.

Second: flour extruder: it is mainly used to puffed wheat flour, the extruder has called crisp fruit machine.

Third: soybean extruder, its main is expanded soybean is used, and the grain extruder, soybean extruder contains degreasing device, is based on soybean oil content high specially for a machine.

Fourth: Feed extruder, are mainly used for extrusion of fish, shrimp, pet food and other special cultivation with pellet Feed production.

Corn extruder to enable power to join materials can produce KongXinBang shape, peanuts, biscuit form shape, millet flower shape, twist, twist shape, plum flower form of various shapes such as swelling fruit, fruit sweet crisp crisp, is suitable for the youngest. Flour extruder with mold to processing a pentagram, square, green beans, diamond, rice crust, matchbox puffing fruit such as form, puffed shape diversification of the products, and have cut off its forming device, the extruder of corn production in 25 to 50 kg, puffed out of corn pattern can be made at the same time. Random equipped with mold head and machine operation instruction. Corn extruder the price is reasonable, is rice, corn, Chinese sorghum, yellow rice as raw materials, such as using its heating raw material can be expanded into all kinds of particle size. Extruder is widely used in making Fried flour, rice flower sugar, food appearance decoration small particles, etc. Corn extruder puffed out the particle size of available different head and blade adjustment, big to the marbles, sesame seeds. Facing the whole country entrepreneurs to provide a low cost, corn extruder less investment, quick effect, low risk of entrepreneurial projects!

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------ LIYANG LONGJIE MACHINERY CO., LTD.