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Crunchy Rice Balls Screening Solution

Wangzai small Mantou is an auxiliary food for children over 5 months old. It is mainly made of potato powder and egg yolk powder, and is baked and processed. It is harmless to chil

Wangzai small Mantou is an auxiliary food for children over 5 months old. It is mainly made of potato powder and egg yolk powder, and is baked and processed. It is harmless to children. Adding AD, calcium, bifurcating factors, etc. is very suitable for babies in the teething stage to exercise their gums and relieve pain and itching. Especially as children grow older, they salivate more. Eating something that grinds teeth can help digest saliva.

The screening of small Mantou mainly includes raw material screening and finished product screening.

Raw material screening

Famous brands like Want Want Group usually use imported potatoes as raw materials, while domestically, Beidahuang potatoes are commonly used. False clumping may occur during transportation and storage, and in summer, biological insects may also appear due to storage temperature and other reasons. Therefore, packaging threads and other debris cannot be avoided during manual unpacking. Therefore, potato and other raw materials need to be screened and inspected before entering the formula.

Crunchy rice balls production line process custom screen machine

Ensure the physical health of workers, prevent material loss and waste, and improve the quality of screening equipment.


This device is designed according to the height of the human body, greatly reducing labor intensity. This design complies with the requirements of the Health and Safety Implementation Guidelines for manual operation tasks. The protective cover is integrated on the sieve plate and equipped with a film filter to directly collect dust, solving the problem of material flying when manually opening the packaging bag, which is harmful to the health of the operators and causes product loss and waste. Checking safety screening is essential, and there is no need to use it in the bagged ingredient industry, especially in the pharmaceutical and food industries. To remove large particles, thread ends, biological flying insects, or other foreign objects, dust-free security screening can easily intercept them.

Comparison between dust-free security screening machine and ordinary screening machine

Dust free security screening screen：

The dust removal fan is directly installed at the top, with a resin composite film filter element to control the flying materials. Qualified materials are intercepted and screened in the security check screen, and dust is extracted by the fan to improve the operating environment and ensure the health of workers.

Compact installation under the feeding platform, this screening machine does not require any tool operation, has a noise level of less than 70 decibels, is easy to clean, has no dead corners, and has a low maintenance rate. The main function is to intercept particles and foreign objects larger than the sieve aperture. Energy consumption: A regular 1000 diameter machine with a motor power of 1.1KW; The power of this security screening motor is 0.55KW, and the industrial electricity consumption is 1 yuan/kWh, saving 0.45 yuan per hour * 8 hours/day=3.6 yuan.

Magnetic separator: installed under the sieve, used to adsorb iron filings smaller than the sieve aperture.

Ordinary screening machine：

1. Subsidies for workers' environmental occupations: For operations in dusty areas, subsidies for special occupations are provided at a rate of 500 yuan per person per month;

2. The inspection and certification by the superior environmental department are qualified. According to the low rectification plan, it will be completed in 3 days. The entire production line will be shut down and losses will be incurred. Other expenses will not be included. The cost of workers will be calculated based on 5 people, 100 people/day * 5 * 3, totaling 1500 yuan.

3. Normal losses caused by dust flying and falling during operation: calculated at 2 kilograms per shift, priced at 1.5 yuan per kilogram, totaling 3 yuan/day;

Screening of crunchy rice balls products

A light, removable and easy to clean screening machine specially designed for soft and deformable wet particles. It is improved on the basis of the commonly used linear wet screening machine. The design of the vibrating plate is adjusted by using the exciting force of the vibrating motor, so that the small Mantou with germ can be rolled on the screen plate without being thrown up. At the same time, it moves forward in a straight line with the exciting force of the screen body. Through the two layers of screen holes, several kinds of materials above and below the screen are produced, which are discharged from their respective outlets.


In combination with the finished small Mantou and a variety of perforated mesh plates, accurate data can be obtained to ensure that the size of the raw embryo and the expansion are qualified.

Comparison of special screen machine for crunchy rice balls and common screen machine


Special screen for crunchy rice balls

Multi directional vibration frequency with flexible and adjustable amplitude, the upper layer material moves in a straight line while the middle layer material rolls forward, protecting the embryo from deformation. The grain size of the raw embryo is consistent, the baking yield is improved, the color and surface smoothness are beautiful without cracks.


Rolling machine

The commonly used rolling machine relies on the principle of centrifugal force to push forward, with different sizes, weights, rolling speeds, and directions of the embryo, and self separation.

Disadvantage: It does not have a sorting function and sticks together during rolling due to moisture and soft dough, only improving roundness. Directly leading to a decrease in yield rate;

Roller screening machine

On the basis of the rolling machine, punching screen plates are added internally, and the particle size is controlled by the aperture. The raw material passing through the holes is prone to scratching and deformation, resulting in uneven scratches and color after baking, which leads to a decrease in quality and damage to price benefits.