Watermelon seed production line

Brief introduction of watermelon seed processing process

According to the different processing technology of watermelon seeds, there are two kinds of pretreatment before polishing: drying and frying.

1、 Raw material cleaning

The horizontal structure of watermelon seed cleaning machine has the advantages of small floor area and high cleaning efficiency. It is mainly used for cleaning black melon seeds. Black melon seeds are added into the cleaning cylinder, clean water is added through the water adding pipe, and auxiliary materials are added. The cleaning drum is driven by the transmission motor to stir and clean the raw materials.

2、 Cooking

The cooking pot hanging basket is specially designed for the cooking process of granular materials. Combined with the advantages of ordinary cooking pot and manual cooking, it is produced with food grade high-quality stainless steel, placed on the stainless steel hanging basket containing cooking materials, and added with counterweight, so that the materials can be completely immersed in the cooking liquid; The inner wall of the hanging orchid is equipped with a bag basket, and the bag is placed inside; A heating device is installed on the inner, outer wall or bottom of the cooking pot to heat the cooking liquid. The pneumatic device installed at the bottom of the cooking pot makes the materials toss up and down in the Chlorophytum, so as to improve the uniformity of material cooking. The external of the cooking pot is wrapped with thermal insulation material, which can effectively block the heat and improve the thermal efficiency.

Heat medium: heat transfer oil, steam, natural gas, alcohol based fuel, etc.

3、 Frying and polishing production line

The key equipment of the frying and polishing production line is the high-temperature frying and polishing integrated machine, which is an advanced energy-saving and efficient special equipment developed by our company according to the frying and polishing process of Western melon seed industry. The machine is composed of high-temperature frying cylinder, polishing cylinder, heating parts and control. The flavored watermelon seeds enter the frying cylinder for high-temperature frying, and the moisture is controlled during the frying process, Make the shape of the product better, and quickly enter the polishing cylinder for polishing after frying.

Schematic diagram of frying and polishing production line

4、 Drying and polishing production line

The drying and polishing production line is to dry the boiled watermelon seeds to a certain moisture, and then polish them through the polishing machine, and finally achieve the moisture and gloss of commercial melon seeds. Compared with frying and polishing, the machine has higher automation and large output. The key equipment is automatic drying line and polishing machine.

Schematic diagram of drying and polishing production line

Automatic drying line

DWP type high-efficiency and energy-saving cross flow circulating belt dryer of our company is selected for the automatic drying line. It is an advanced mesh belt automatic dryer and has a number of invention patents (cn201910791408.8 and cn201110059169.0). The application of these patented technologies has successfully solved the problems of uneven hot air distribution and short circuit of hot air in ordinary belt dryer Low drying strength. With its advanced automation and controller, this world-class machine can provide you with fast adjustment of processing technology of different varieties of products. It has the ability to remember drying process parameters and will provide you with constant output throughout the production season.

The heat source can be natural gas, steam, heat transfer oil and other heat sources. When natural gas is used, the machine has a full-automatic dryer with high-energy efficiency burner conforming to European standards, which can reduce labor demand, reduce production cost, and provide you with perfect drying effect every time.

When steam or heat transfer oil is used for heating, the control element adopts advanced pneumatic proportional control regulating valve and PID intelligent temperature control unit to stabilize the temperature control, so as to stabilize the drying process and reduce labor demand, so as to reduce the production cost, and provide you with perfect drying effect every time.

Polishing unit

The octagonal fried and dried polishing machine is octagonal. It is used for polishing black melon seeds, pine nuts, pecans and a variety of fried foods to increase the brightness and gloss of fried foods such as melon seeds. The barrel has small throwing range, stable frying and less damage, which greatly improves the quality of fried foods. At the same time, it can also be used as a hot-air stove frying machine for re frying and baking of fried foods.

According to the process requirements of customers, the polishing machine can be divided into hot polishing type (with heating stove) and cold polishing type.