What problems can be encountered during the operation of a vermicelli machine

The problems that may be encountered during the operation of the vermicelli machine cover multiple aspects such as equipment operation, vermicelli quality, safe operation and environmental adaptation. The following is a detailed classification and solution:

I. Equipment operation issues

1. Difficult to start or unable to start

Reason

Power failure (unstable voltage, short circuit in the line, blown fuse).

Motor overload (transmission component jamming, bearing damage).

Control system failure (sensor malfunction, program error).

Solution

Check the power line, replace the damaged fuse or adjust the voltage.

Clear the debris from the transmission components (such as chains and gears) and replace the worn bearings.

Restart the control system or contact the manufacturer for program debugging.

2. Abnormal noise or vibration during operation

Reason

The component is loose (the bolts and nuts are not tightened).

The bearing is damaged or underlubricated.

The drive belt/chain is worn or improperly tensioned.

Solution

Tighten all connecting parts, check and replace loose bolts.

Replenish or replace the lubricating oil and check whether the bearings need to be replaced.

Adjust the tension of the drive belt/chain or replace the worn parts.

3. Powder leakage or uneven powder output

Reason

The mold (screen) is damaged or clogged.

The gap between the screw propeller and the mold is too large.

The starch slurry concentration is inappropriate (too thin or too thick).

Solution

Clean or replace the mold to ensure that the screen is undamaged.

Adjust the gap between the screw propeller and the mold (usually 0.5-1mm).

Control the starch slurry concentration (it is recommended to be 18%-22%), and adjust it by adding water or powder.

Ii. Quality issues of vermicelli

1. The vermicelli is broken or fragile

Reason

Poor quality of starch (low protein content, insufficient amylopectin).

Insufficient aging (starch not fully gelatinized).

Drying too quickly (either too high temperature or too strong wind speed).

Solution

Choose sweet potato and potato starch with a high content of amylopectin.

Extend the aging time (4 to 6 hours) to ensure full gelatinization of the starch.

Adjust the drying temperature (50-60℃) and wind speed to prevent rapid surface hardening.

2. Sticking or merging of vermicelli

Reason

The starch slurry concentration is too high (poor fluidity).

The mold temperature is too low (the vermicelli has not been set in time).

Insufficient cooling (cutting before solidification).

Solution

Reduce the starch slurry concentration to 18%-20%.

Increase the mold temperature (80-90℃) to ensure the rapid setting of the vermicelli.

Extend the cooling time (10-15 minutes), or add a cooling device (such as a cold water tank).

3. Abnormal color of the vermicelli

Reason

Starch contains a lot of impurities (including soil and pigments).

Excessive additives (such as alum and pigments).

The equipment was not cleaned thoroughly (with residual oxidizing substances).

Solution

Select pure starch and filter to remove impurities.

Strictly control the dosage of additives (alum ≤0.1%).

Clean the equipment to prevent metal parts from oxidizing and contaminating the vermicelli.

Iii. Safety Operation Issues

1. Mechanical injury risk

Reason

The power was not cut off to clean the equipment during operation.

Missing protective devices (such as conveyor belt guards).

Wearing loose clothing in violation of regulations or having long hair not tied up.

Solution

Before cleaning or maintenance, power must be cut off and a warning sign hung.

Install and inspect the protective devices (shields, emergency stop buttons).

Wear tight work clothes and tie up long hair when operating.

2. Electrical faults or electric shock

Reason

The lines are aged or damaged.

A damp environment leads to insulation failure.

Ungrounded or poorly grounded.

Solution

Regularly inspect the circuits and replace aged cables.

Keep the equipment dry and avoid operating it in a damp environment.

Ensure that the equipment is reliably grounded and install a leakage protection device.

3. High-temperature burns

Reason

Contact the heating components (such as molds, drying ovens).

Steam leakage (such as aging sealing rings).

Solution

Wear heat-resistant gloves when operating to avoid direct contact with high-temperature components.

Regularly inspect the sealing rings and replace aged parts to prevent steam leakage.

Iv. Environmental and Efficiency Issues

1. Low production efficiency

Reason

Insufficient raw material supply (poor transportation of starch slurry).

Improper setting of equipment parameters (such as too low rotational speed of the screw propeller).

Mold blockage leads to a reduction in powder output.

Solution

Ensure a stable supply of starch slurry and check whether the conveying pipeline is unobstructed.

Adjust the equipment parameters (such as the rotational speed of the screw conveyor and the mold temperature).

Regularly clean the molds to prevent blockage.

2. High energy consumption

Reason

Equipment aging (motor efficiency decline).

The heating system has poor insulation (heat loss).

Frequent starts and stops lead to increased energy consumption.

Solution

Replace the high-efficiency motor and maintain the equipment regularly.

Strengthen the insulation of the heating system (such as adding an insulating layer).

Optimize the production process and reduce the frequency of equipment start-up and shutdown.

V. Maintenance and Care Issues

1. The components wear out quickly

Reason

Insufficient lubrication (dry grinding of bearings and gears).

The raw materials contain hard particles (such as sand and gravel）

Improper operation (such as frequent overloading).

Solution

Regularly replenish lubricating oil and establish lubrication records.

Filter the raw materials to remove hard particles.

Avoid overloading operation and produce at rated capacity.

2. Not cleaned thoroughly

Reason

The residual starch slurry is difficult to clean after hardening.

Improper cleaning of tools (such as steel wool scratching equipment).

Insufficient cleaning frequency.

Solution

Rinse the equipment with warm water immediately after each use.

Use a soft-bristled brush or sponge to clean and avoid scratching the surface.

Make a cleaning plan and clean once a day or once a week.