I. General Provisions

As an important equipment for polymer material processing, the safe operation of the biaxially stretched mesh production line equipment is directly related to personnel safety and product quality. This specification aims to clarify the safety operation requirements, equipment maintenance standards, and emergency response procedures for the production line of biaxially stretched mesh, ensuring the stability and safety of the production process.

2、 Equipment safety requirements

Mechanical safety protection

All rotating components must be equipped with protective covers, which should be firm and reliable. The equipment should automatically stop when opened

Emergency stop devices should be installed at key parts such as traction rollers and stretching rollers, with a spacing of no more than 1.5 meters

High temperature areas (such as extruders and heat setting zones) should be equipped with insulation protection and warning signs

The equipment should be equipped with safety interlock devices such as overload protection and chain breakage protection

Electrical safety

The electrical system should comply with the GB 5226.1 standard, and all electrical equipment should have reliable grounding

Control cabinets and distribution boxes should be sealed to prevent dust and equipped with leakage protection devices

Flame retardant materials should be used for on-site cables to avoid mechanical damage

The emergency stop button should adopt a red mushroom shaped design, with one click to cut off the main power supply

Hydraulic and Pneumatic Systems

The hydraulic station should be equipped with a pressure safety valve, and the working pressure should not exceed 85% of the rated value

Pneumatic systems should be equipped with oil-water separators and pressure regulating devices

All pipeline connections should be secure and regularly checked for leaks

3、 Operational safety regulations

Check before startup

Confirm that all safety protection devices are intact and effective

Check that the oil level and quality of the lubrication system meet the requirements

Clean up debris around the equipment to ensure smooth passage

Check whether the raw materials meet the process requirements

Precautions during operation

It is strictly prohibited to insert any part of the body into the interior of running equipment

Do not cross the running mesh belt or come into contact with high-temperature components

When adjusting process parameters, it should be done gradually to avoid sudden changes

If any abnormal sound, vibration or odor is found, the machine should be stopped immediately for inspection

Shutdown and maintenance

When shutting down, all systems should be shut down in sequence, starting with the main engine and ending with the auxiliary engine

Cleaning and maintenance can only be carried out after the equipment has completely stopped

During maintenance, the power should be cut off and a warning sign reading 'Do not close' should be hung

Special tools should be used when replacing molds or cleaning mold heads

4、 Special homework safety

high-temperature operation

Insulated gloves must be used when in contact with components above 200 ℃

When cleaning the extruder screw, ensure that the temperature drops to a safe range

The hot oil system must be completely cooled and drained before maintenance

work at height

Safety belts must be worn for work over 2 meters in length

Use stable climbing tools and prohibit climbing equipment

A warning zone should be set up below during high-altitude operations

Limited space homework

Ventilation testing must be conducted before entering enclosed spaces such as ovens

During homework, there should be someone to supervise and maintain smooth communication

Equipped with emergency lighting and escape equipment

5、 Occupational health protection

personal protection

Operators should wear anti-static work clothes and safety shoes

Wear a dust mask when in contact with dust

Earplugs or earmuffs should be used in areas with noise levels exceeding 85dB

Wear protective gloves and goggles when handling chemicals

environmental control

The production area should maintain good ventilation

The dust concentration shall not exceed the standard of 8mg/m ³

Regularly monitor the concentration of harmful gases

Local cooling facilities should be installed in high-temperature areas

6、 Emergency Management

Emergency situation handling

In case of mechanical jamming, immediately cut off the power supply

Dry powder fire extinguishers should be used when materials catch fire, and water is prohibited

Personnel injured should immediately stop the equipment and provide rescue

Chemical leakage should be treated with adsorbent materials

emergency equipment

Fire extinguishers should be installed every 50 meters on the production line

Eye wash stations and first aid kits should be installed on site

Post emergency contact numbers in a prominent location

7、 Training and Management

personnel training

New employees must undergo three-level safety education

Special operation personnel must hold certificates before taking up their posts

Regularly organize safety drills and skill training

Daily Management

Establish equipment safety inspection system

Keep good safety records and rectify hidden dangers

Regularly review safety operating procedures

8、 Supplementary Provisions

Matters not covered in this specification shall be implemented in accordance with relevant national safety standards

The safety requirements provided by the equipment manufacturer should be followed together

This specification shall come into effect from the date of publication and shall be regularly revised and updated

By strictly implementing the above safety regulations, various risks during the operation of the bi-directional stretch mesh production line can be effectively prevented, ensuring safe and orderly production. All relevant personnel must be familiar with and comply with the requirements of this regulation, and work together to create a safe working environment.