How to control the puff of the product when using the food extrusion machine

After pre -processing the materials are crushed, wet, mixed, and preheated, the driving force of the squeezing screw is used to form a specially designed mold hole to form a certain shape and organizational state, which is called extrusion processing.

The basic principle of squeezing and puffed is: grain raw materials containing a certain amount of water, sealed in the patch machine, for heating, pressurizing or mechanical effects, so that the material is in a high temperature and high pressure state. In this state, all tissue components have accumulated a lot Energy and material tissue become soft. The water is divided into an overheated state. When the raw material comes out of the squeeze machine, the pressure suddenly decreases, the water in the raw materials instantly vaporized, and the volume expands rapidly. When the structure reaches the elastic limit, the bubbles are ruptured, the hot steam escapes, the internal pressure decreases, the bubbles gradually collapse, and the bubble wall is connected, but this process stopped before the original density. This is because the dough loses water and the temperature decreases, and the entire structure is hardened, so that the porosity and loose sponge structure is fixed.

The change of grain volume macro structure can be represented by pussy. The degree of puffed refers to the volume increase of the product after the expansion, which is expressed in the following formula:

The cross -sectional/ squeezer of the puff products of the puffed product is the cross -sectional area of the pores of the mold.

Under normal circumstances, the product is more than 5 or more. According to different process requirements, the patch can be controlled between 10 and 20.

Quality assurance:

1. After the installation of the equipment, the operator designated by your company shall be provided with free guidance and training, so that they can master the operation method and general maintenance of the equipment.

2. From the date of acceptance, delivery and use of the equipment, we will provide one-year free warranty for the products (including the cost of natural damaged parts. If the damage is caused by improper operation of your company personnel, only appropriate material fee will be charged after negotiation). After the expiration of the warranty, our company provides warranty for the products, only charging the appropriate cost, free of labor costs.

3, In order to ensure that your company's equipment to achieve the ideal operation effect, but also to save our company's maintenance costs, within the warranty period to ensure that the regular dispatch of professional and technical personnel to overhaul and maintenance products.

4. When the equipment fails and we receive your notice, we will make timely transfer arrangements and rush to the site for maintenance to ensure the normal operation of the equipment.

Jinan DAYI Machinery Technology Co., Ltd. is located in the beautiful city of Jinan. The company has been engaged in the research and development of food production line machinery and production technology for a long time, the company's standard production technology, the operation concept of automatic control, and the focus on the development of stable and reliable production equipment. The company's designers have long-term experience in design, development, debugging and production, and have responsible on-site engineering personnel engaged in production and debugging work, and can provide you with standardized design, production, and debugging processes.