(16147 products available)
The drum filter is a type of liquid filter-purifying equipment. It can be classified into three categories according to their application. The first one is a compound drum filter used for mining to separate solid particles from liquids. The second one is an external filters drum that provides an optimal filtration area by having the filter media external to the drum. Meanwhile, the third one is a suction drum filter, which removes solids from liquids through suction applied by a vacuum pump.
The following two lists show some external and internal types of drum filters:
External Filters Drums
An electric drum filter works with electricity to provide high filtration efficiency and low operating costs. Its motor drives the filter to consume a small amount of power.
An AquaC large mesh external filter drum has a large 150-mesh pattern that enables fish and other large debris to bypass the mesh. The filtered water returns to the pond, while the waste gets stored in the drum.
AquaC small mesh external filter drums have a small number 300 mesh that even tiny debris get filtered. The organic waste gets stored in the drum, and bacteria can easily break down the organic matter when the mesh is opened.
Internal Filter Drums
An internal mesh drum filter has a filtering mesh inside the drum to remove the undesired debris and pollutants in the water column flushes through the mesh and out of the pond.
An internal cyclone dust filter works together with a cyclone separator to purify the air. The separator removes large particles from the waste gas stream. Then, the fine particles filter through the mesh internal drum to ensure clean air gets released into the environment.
An internal HEPA filter captures a high percentage of airborne contaminants, such as mold, pet dander, dust mites, and pollen. The drum HEPA filter is used in many indoor settings, such as hospitals, schools, and homes, to improve indoor air quality and lower the chances of airborne diseases.
Drum filters perform a variety of functions based on the type and specifications available. All drum filters have a cylindrical mesh screen. The mesh size is an important specification when discussing drum filters. The mesh size correlates with the type of solid particles that the filter will catch or allow through. Mesh sizes can vary between 5 to 1000 microns. Other general specifications include the diameter and length of the drum. Typically, they can range from a few inches to several feet in diameter and lengths of up to a few meters. The flow rate of drum filters indicates how quickly water can be processed through the filter, usually expressed in gallons per minute (GPM) or liters per minute (LPM). The frequency at which a drum filter needs to be cleaned or emptied depends on the type of filter, the load of waste, the drum filter model, and the size of the drum filter.
A drum filter functions efficiently if it is maintained properly. The mesh in the rotary drum filter needs to be washed frequently. Manufacturers may provide an automated backwash feature. If not, operators can set a timer and conduct backwashing at least once a day. During this time, they should manually flush the system and set the pump to backwash. Operators can also set the pump to flush instead of backwashing depending on their filter's configuration. The flushing method consumes less energy and water by only using it where necessary. Operators can also use a spray bar to improve backwash efficiency.
Daily flushing/backwashing can be avoided if the water flow is high in the lagoon or pond where the filter is being used. In such cases, the drum filter can be cleaned once a week. To check if weekly cleaning is sufficient, inspect the surcharge pipe to see if it is clogged. Check the overflow water in the lagoon or pond to see if the filter is doing its job. If the water is running clear and the surcharge pipe is not clogged, then weekly cleaning is sufficient. The backwashing method can also be improved by using an air assist option. This method uses compressed air to remove debris from the mesh.
Agricultural Industries
Drum filters are widely used in various agricultural industries. In aquaculture, for example, drum filters are used to keep fish pond water clean so that the fish can grow without any problem. Also, drum filters are used in irrigation systems to filter out dirt from water coming from rivers or underground sources, making sure only clean water gets to the crops.
Food and Beverage Production
In the food and beverage industry, drum filters help produce safe and high-quality products. In breweries and distilleries, for instance, they separate unwanted solids from wort or mash to clarify the liquid before fermentation and enhance the final beverage's clarity. Similarly, in juice and dairy processing, drum filters remove pulp, fibers, and bacteria to improve product clarity and purity, ensuring that consumers get clean and safe drinks.
Municipal Water Treatment
Drum filters play a crucial role in municipal water treatment. They are used in advanced water treatment plants to filter large amounts of raw water from sources like rivers, lakes, and reservoirs. The drum filters separate particles, sediments, and pollutants, ensuring that only clean water is supplied to the entire city through the distribution system.
Mining Operations
In the mining industry, drum filters are used differently. In mineral processing, for example, drum filters separate valuable ores from slurries, dewatering the material for easier handling and further processing. Also, in tailings management, drum filters help in the proper disposal of tailings by separating water from the tailings, allowing water to be recycled back into the processing plant.
Pharmaceutical and Biotech Manufacturing
In the pharmaceutical and biotech manufacturing industries, drum filters are crucial in ensuring product purity and compliance with strict regulations. The filters remove undesirable solids, such as cell debris, clumps, and other contaminants, from the process streams, including cell cultures and fermentation broths, to secure the final medicine and biological products.
Textile and Dye Production
In the textile industry and dye production, drum filters help improve product quality by removing impurities. They separate debris and fibers from the dye solutions before use in textile manufacturing, ensuring that the final fabrics and garments meet the company standards.
Wholesalers looking to offer customers the right piece of equipment should consider these five crucial things when buying a drum filter for aquatic farming.
Farming System
Farming systems can either be recirculating or flow-through. While a drum filter works well in recirculating settings, it may not be the ideal drum filter choice for a recirculating system. In a flow-through system, water continuously passes through without looping back to it. The filter would work in a system with a closed water flow.
Mesh Size
Choose a drum filter with a mesh size that corresponds with the type and size of debris that needs to be filtered out. Smaller mesh sizes capture finer particles, resulting in clearer water, while larger mesh sizes offer more rapid filtration with less frequent cleaning.
Cleaning Mechanism
Select a drum filter whose cleaning mechanism is easy to operate. Some models have automated backwashing systems, while others require manual cleaning or flushing. Consider the maintenance routine and staff availability when choosing a cleaning mechanism.
Power Consumption
Drum filters with different specifications consume varying amounts of electricity. Consider the power consumption and water-pumping requirement. Opt for a drum filter that strikes a balance between effective filtration and reasonable power consumption to minimise operational costs.
Spare Parts Availability
Apart from the drum filter, spare parts required for maintenance and repairs will eventually be needed. They may include pumps, motors or filter drums. Choose a filter with spare parts readily available. This will ensure long-term support and easy maintenance.
Q1: What is the primary function of a drum filter?
A1: The primary function of a drum filter is to separate solids from liquids through various filtration mechanisms, especially in industrial, wastewater treatment, and aquaculture settings.
Q2: What are the advantages of drum filters?
A2: Advantages include efficient solid-liquid separation, self-cleaning mechanisms, low operational costs, versatility in applications, and the ability to handle varying flow rates and concentrations.
Q3: What are the challenges associated with drum filters?
A3: Some challenges include potential clogging, the need for regular maintenance, ensuring appropriate bandwidth, and the design and selection of the filter for specific applications.
Q4: How do businesses maintain drum filters?
A4: Maintenance involves routine inspections, checking for clogs and damages, periodic cleaning, ensuring proper water flow, and any necessary repairs or adjustments. Scheduled professional checks can ensure the filter's efficiency.
Q5: What determines the lifespan of a drum filter?
A5: The lifespan is influenced by build quality, frequency of use, maintenance practices, filtering load (concentration (of materials being filtered), and the presence of chemically abrasive substances).
浙公网安备 33010002000092号
浙B2-20120091-4