The principle of woodworking dust collector and what working conditions are it applied to?

Hebei Xintian Environmental Protection Equipment Co., Ltd. in China designs and manufactures woodworking bag dust collectors specifically for the woodworking industry.

For many years, it has been well received by customers.

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The following is a detailed introduction to the principle of woodworking dust collectors:

Filtration principle

1. Mechanical interception

- The main component of the filtration woodworking dust collector is the filter bag or filter element. When the dust-laden gas enters the dust collector, the larger wood chip particles will be directly intercepted on the outer surface of the filter bag (core) when passing through the filter bag (core) because the gap between the fibers is smaller than the particle size. For example, the filter bag is generally woven from materials such as polyester fibers, and the pore size between the fibers can be between a few microns and tens of microns. If the size of the wood chip particles is larger than the pore, they will be intercepted.

2. Inertial collision and diffusion effect

- For smaller dust particles, when the dust-laden airflow bypasses the fiber, the particles will deviate from the airflow streamline due to their own inertia, collide with the fiber and be captured. At the same time, some extremely tiny particles will diffuse to the fiber surface and be adsorbed under the action of Brownian motion. This is like in the microscopic world, tiny dust particles are like active "elves", constantly moving irregularly under the collision of gas molecules, and will be adsorbed when they are close to the fiber.

3. Dust layer filtration

- As dust continues to accumulate on the surface of the filter bag (core), a layer of dust will be formed. The pores of this dust layer are smaller, which can play a secondary filtering role for the subsequent dust entering, greatly improving the filtration efficiency of the dust collector. It is like adding a layer of finer filter mesh on the surface of the filter bag.

Working conditions of woodworking dust collector

Wood cutting processing

1. Sawing machine processing

- When using sawing machines such as circular saws and band saws to cut wood, a large amount of sawdust and wood chips will be generated. The woodworking dust collector can be directly installed on the dust exhaust port of the sawing machine, and the generated dust will be sucked into the dust collector through the pipe for treatment. For example, in the wood cutting workshop of a furniture manufacturing company, if the sawdust generated by the sawing machine is not handled in time, it will accumulate on the floor of the workshop, affecting the workers' operation and the safety of the workshop environment.

2. CNC cutting equipment

- For high-precision cutting equipment such as CNC laser cutting wood or CNC routers, the dust particles generated may be finer. These equipment usually have high requirements for the cleanliness of the working environment, because dust may affect the accuracy and cutting quality of the equipment. Woodworking dust collectors can effectively collect these fine dusts through fine filtration systems such as high-efficiency filter bags or filter elements to ensure the normal operation of the equipment.

Wood grinding conditions

1. Manual grinding

- When workers use sandpaper or sanding blocks to manually grind wood, a large amount of fine sawdust and dust will be generated. In small woodworking workshops or furniture repair sites, small portable woodworking dust collectors can be used. These dust collectors can be placed near the work area, and through flexible dust suction pipes, the dust generated by grinding is sucked away to reduce the harm of workers inhaling dust.

2. Sanding machine operation

- In large furniture manufacturing companies, sanding machines are key equipment for wood surface treatment. When sanding machines are operated continuously, a large amount of dust will be generated. The woodworking dust collector can be connected to the dust collection system of the sanding machine. It adopts a combination of cyclone separation and filtration. Most of the larger wood chip particles are separated by cyclone separation, and then the fine dust is processed by the filtration system, so as to effectively purify the air in the workshop.

Wood carving and mortise and tenon processing

1. Engraving machine processing

- When using a woodworking engraving machine for wood carving, whether it is two-dimensional plane carving or three-dimensional carving, the tool will produce wood chips and dust when cutting on the wood. And because the engraving machine has high precision requirements, dust cannot be allowed to enter the moving parts of the engraving head. The woodworking dust collector can use a specially designed dust hood to absorb the dust generated during the carving process in time to ensure the precision and quality of the carving.

2. Mortise and tenon processing

- During the mortise and tenon processing, dust is generated when the tenon and mortise are made by milling, drilling, etc. If these dusts enter the mortise and tenon joint, they will affect the matching accuracy of the mortise and tenon. Woodworking dust collectors can be installed around mortise and tenon processing equipment, using filtering dust removal methods to ensure the cleanliness of the processing environment and improve the quality of mortise and tenon processing.