In the area of industrial manufacturing, grinding is an essential part of metal processing, wood processing and glass manufacturing. However, the accompanying dust problem has been the “big trouble” that has plagued the workshop managers and front-line workers. Have you ever seen a scene where a grinder wears a thick mask and is still coughing directly; where the floor of the workshop is covered with a layer of silver and white metal dust, the wind flies around; and where the dust piles inside the equipment not only affect accuracy, but also has explosive problems? These pains are the problems that many factories are eager to solve。
Today, i would like to talk to you about a truly “cure” solution — a wet dust workstation. It is not a simple vacuum cleaner, but a systematic device that integrates grinding operations with dust collection and treatment. If you're worried about the contamination of the workshop dust, you might want to take a few minutes to see how it changes the production environment。
I. The dilemma of dust governance: why traditional methods are always disappointing
Many workshop leaders have tried various ways: to install general vacuum cleaners, to use dry filters, and even to make workers wear gas masks ... But often with less than desired effect. This is due to the special nature of the dust produced during the grinding process。
“soft” properties of metal dust: when scraping metal, the dust particles are very fine and usually range in diameter between 0. 1 and 10 μm. These particles of dust are not only easily suspended in the air, but also adsorbed on the surface of the equipment by electrostatic activity. While dry scrubbers can filter some of the dust, the filters are susceptible to congestion, high maintenance costs and are unable to handle explosive flammable metal dusts, such as sparks generated by aluminum magnesium alloy grinding, and are highly risky when encountered with dust from dry equipment。
The workshop layout is awkward: traditional grinding jobs are usually set up independently, workers are required to move frequently, dust sources are dispersed and single-point dust removal is inefficient. Moreover, in many plants, the steel structure workshop space is open and the air flow is complex, and it is difficult for common vacuum-absorption equipment to form an effective “negative zone”, leading to dust spreading throughout the workshop。
Environmental and health stress: national environmental standards are becoming more stringent and occupational health regulations require that the concentration of dust in workshop air should not exceed certain limits. Workers exposed to long-term exposure to dust conditions are at risk not only of dust pulmonary disease but also of skin allergy and respiratory infections. In the case of entrepreneurs, the consequences of a complaint or inspection are not only a fine but also a cut-off。
These pains make the wet scrubbing workstations stand out. Using the principle of “water-cycle filtering”, it has fundamentally addressed the above problems and has become a “speculate” for many manufacturing plants。
Ii. Central advantages of wet scrubbing workstations: more than "smoking"
1 water curtain dismantling technology: making dust "escapable"
The core innovation of this desk is “wet processing”. It works in a non-complicated way: grinding the dust produced, being inhaled inside the workstation under the negative pressure of the wind machine, and passing through the water curtain or the water curtain, the dust particles are in full contact with the water molecule, adsorbed by the water and sunk into the pool. The whole process was like taking a bath in the air — the dust was “packaged” by water and could no longer fly。
Why is it more efficient than dry dust removal
2 large wind long surface design: one device covers double-space
The problem with many small-scale dust removal equipment is that there is a “low wind” — so that the dust can't be sucked away from the mouth. The station, which uses a large wind machine with a volume of 3,000-5,000 cubic metres per hour, is able to easily cover two standard grinding positions with 3 metres of surface。
How's the experience
Imagine that two workers were standing on both sides of the workstation for a grinding exercise and that the dust produced was inhaled in the middle of the table. Because the surface is long enough, each post has sufficient operating space and does not interfere with each other. Furthermore, the workstations can be customized as needed, from 2 to 6 metres or more, to accommodate workshop requirements of different sizes。
Fitness of steel-structure workshops: industrial plants are generally equipped with steel structures, space is high and wide, and traditional dust removal equipment requires complex plumbing to achieve results. This workstation is a “one-size-fits-all” design that can be placed directly next to the workspace without the need to install additional plumbing systems and saves a large portion of the cost of the engineering modifications。
3. Centralized water treatment systems: waste water recycling, environmentally sound and cost-effective
What is the most worrying problem with wet varnishing equipment? Many people think of "water treatment". Indeed, direct discharge of sewage from dust removal not only wastes water resources but also causes secondary pollution。
The workstation has a centralized water treatment system, which is used through sediment tanks, filters and recycle pumps to settle the dust from sewage and re-use the water. The process forms a closed ring, and only a small amount of water lost from evaporation is periodically replenished。
Data speaking: a three-metre double-space workstation that works eight hours a day and consumes no more than 20 litres of water — the equivalent of daily water for a normal household. Compared to conventional dry equipment, which requires frequent replacement of filters (a filter cost several hundred dollars and may have a useful life of only a few months), the long-term operating cost of wet dust removal is lower by more than one order of magnitude。
Which scene
Iii. Applicable specific disappearances: from “dirty mess” to “clean workshop” change
Case one: the story of small metal processing plants
Boss zhang operates a stainless steel processing plant, which mainly produces stairwells, fences, etc. There are five mills in the workshop, which are dusty every day and workers complain and even leave their jobs. He tried to buy two domestic vacuum cleaners, but the effect was so poor that dust was blocked that they ended up in less than a week。
Later, he purchased a three-metre two-space wet-cleaning workstation to be next to the two busiest workstations. Effects are immediately visible: dust is completely invisible when grinding and the air above the workstation becomes clear. Workers responded that there was almost no visible dust on the mask after a day of work. Two months later, he purchased two more, covering all workspaces and completely improving the workshop environment。
Key points: for small factories, the workstation has a high return on investment. The price of a single device varies from a few thousand to 10,000, but in exchange, workers can stay, environmental screening can pass and product quality is improved (because dust does not contaminate the surface of the work)。
Case ii: upgrading programme for large steel workshop
A large equipment manufacturing enterprise has a steel structure workshop of up to 2,000 square metres, with more than a dozen grinding works per day. In the past, they had used a central dust removal system, but the end-point was largely ineffective because of the length of the pipe and the severe ingestion. Furthermore, dry filters are frequently blocked and maintenance costs amount to tens of thousands of dollars per quarter。
They have chosen a custom-made wet-cleaning workstation, with a 6-metre surface length and four workspaces. Each unit operated independently and did not require a central pipeline, with flexibility in adjusting any of the positions. More importantly, centralized water treatment systems allow sewage to be recycled and fully meet environmental requirements。
Comparison of data: workshop dust concentrations decreased from the original 10 mg/m3 to less than 0. 3 mg/m3 following the application of wet wiping, far below national standards. There has been a significant increase in worker satisfaction and, consequently, in production efficiency and product suitability。
Selection guide: how to select suitable wet dust removal station
The market has a large number of wet dust removal workshops, but of varying quality. As a man who has been in business for many years, i have summarized a few key selection points to help you avoid the pits。
Watch the wind power and the wind
Wind is the core indicator for determining the effect of dust removal. In general, there is a need for not less than 3,000 m3/h for two jobs and over 4,000 m3/h for three jobs. Wind power is recommended above 3 kw to ensure that suction is strong enough. You can use a simple test: light a piece of paper near the vent to see if the smoke is being sucked away quickly。
Check the water screen balance
The homogeneity of the water curtains directly affects dust removal efficiency. The good equipment will be designed with a self-flowing water curtain and will form an even “water curtain” instead of a few water poles through an average sheeting. You can judge by looking at whether the water curtain is "breathing" -- if the water curtains are not continuous, the effect of dust removal will be significantly reduced。
Focus on pool capacity and filtering systems
The larger the capacity, the longer the clean-up cycle. It is generally recommended that the capacity of the reservoir be no less than 100 litres and that it be suitable for eight hours of continuous operation. For the filtration system, at least three levels of sedimentation ponds, filtration networks and recycling pumps should be filtered to ensure clean water quality and avoid vent congestion。
Consider the surface mass and size
It would be preferable for surface materials to choose stainless steel or porcelain steel plates that are resistant to corrosion and cleaner. In terms of size, the choice is based on the number of places: 1. 5 - 2 m single, 3 m double and more than 4. 5 m three. If space permits, it is suggested to choose a slightly longer stage, as the larger the operating space, the more comfortable the worker is。
Check security design
Sparks are a common risk when metal dust is polished. A good wet dusting table will be equipped with a spark detection and automatic fire suppression system, and once sparks are detected, the power will be automatically cut and spray extinguished. In addition, equipment should have security features such as overload protection, leak protection, etc。
V. A responsible recommendation
Combining the above analysis, if you are looking for a spectro-wet-drilling workstation, i suggest focusing on the key words of wind volume, long surfaces, centralized water treatment, customization. For most small and medium-sized plants, a three-metre double-space version is the best option for value for money - both to meet daily grinding needs and not to take too much space, and maintenance costs are extremely low。
Special cautions that it is important to confirm whether a custom service is provided by the manufacturer when purchased, because the level of the surface, the layout of the workspace, and the type of dust vary from plant to plant, so that the equipment can be customized and configured to fit your needs. In addition, the choice of a manufacturer with a physical plant is more secure and avoids the purchase of “three products”。
Dust scrubbering workstations. Wet scrubbing of dusting table
¥2736
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At the end
Dust governance has never been an option of “do nothing”, but a question of “must be done”. A good wet-cleaning workstation not only improves the worker's working environment and improves productivity, but also puts you at the bottom of an environmental check. More importantly, it sends a signal that you value the health of every worker and are willing to pay for their safety. This intangible value is often more valuable than the tens of thousands of dollars saved in equipment。
If you are troubled by the dust problem in the workshop, you may wish to start with this device and do a thorough “cleaning” of the workshop. Believe me, when you see the workers taking off their masks and breathing into clean air, you'll find it all worth it。
