Based on the characteristics of the extrusion principle of single and twin screw extruders for extruded food machinery, a multi-functional extruder was developed, which can meet the requirements of different processes. It can easily adjust the parameters of moisture, pressure, temperature and rotational speed in the extrusion process and display them in digital way. Different screw combinations and length-diameter ratios were selected to solve the problem. The problem of combining theory with practice in teaching and scientific research has completely changed the current situation of relying on operational experience to control. The experimental machine has been used by scientific research institutes and has achieved good results.

Importance and Safety of Extruded Food Machinery in the Industry

With the development of the times, the progress of science and technology and the improvement of people's living standards, people are no longer satisfied with food with enough food and clothing, but more in pursuit of nutritious, interesting and functional food. Extruded food machinery produces extruded food through various technologies, which has good taste, diversified shape and taste, and can meet different age groups. People's demands.

In shape, puffed food has made a variety of breakthroughs, from the beginning of a single shape to today's various fruits, vegetables, toys, animals and other shapes, making the puffed food form diversification. In taste, puffed food not only in the core material, adding butter, yolk powder, chocolate, etc., to enhance the product. Grade, but also on the surface of the article, adding surface sugar, chocolate coating, so that food taste diversification. In taste, the original millet pot has gone, now the full expansion of non-fried food taste better, and healthier.

Extruded food machinery and equipment can not only extrude various raw materials such as soybean meal, corn meal, rice bran, cotton meal, rapeseed meal, soybean meal, non-protein nitrogen (corn urea), fish meal, animal waste, etc., but also extrude formula feed by changing the configuration. It can also be used for raw material pretreatment of oil processing.

The quality of extruded food machinery and equipment affects the production quality and safety of the extruded food industry, and the cutters in the food machinery are directly in contact with food production and food packaging, so the choice of cutters in the food machinery is very important. It's not a trial. It takes time to prove it.

Points for Attention in Use of Extruded Food Machinery

Because the vulnerable parts near the outlet of the extruded food machinery wear relatively fast and the vulnerable parts near the inlet and outlet wear less, when replacing the vulnerable parts, they should be replaced sequentially from the outlet, not a variety of parts should be replaced at one time. Secondly, the extruded materials should be cleaned up to prevent foreign objects such as metals from entering the machine to damage the parts at any time. Check the quality of the expander and pay attention to replacing the fragile parts.

Before the extruding machine operation, the head, the machine core and the screw should be removed. It is very important to carefully clean the dirt and oil on the machine core and the screw, dry and assemble after cleaning.

When the forming product cannot be sprayed out from the nozzle in the initial stage of extrusion machinery operation, the temperature of the nozzle is often too high. The reason is that the raw material is too dry, or there is foreign matter in the spiral groove, or the feeding is interrupted. The reasons should be found according to different conditions and the troubles should be eliminated.

When it is found that the spiral groove of the puffed food machinery is blocked, do not stop immediately. It should stop feeding and run for a while until it has a burnt taste. This can avoid the nozzle and spiral sleeve biting to death. In case the nozzle and spiral sleeve bite to death and can not be removed, do not knock hard, it can be removed from the body and burned in the fire for a while. It can be removed.

After stopping feeding, let the machine idle for 1 minute and stop after discharging all the material in the machine. Then remove the sprinkler head and screw sleeve while hot, flush out the screw shaft, remove the residue in the expander, dredge the nozzle hole for reserve. Attention: gloves should be worn when disassembling the machine to prevent scalding.