Amerispray offers systems that utilize either SELF-CLEANING or STATIC LINE filters.
Automatic Filtration: The liquid to be filtrated passes through a filter cartridge and deposits the suspended solid particles on the inner surface of the cartridge. The progressive deposit of suspended solids on the inner wall of the cartridge creates a difference in pressure between the inlet and outlet of the filter. The automatic filter (cartridge) cleaning process begins when the differential pressure gauge detects a liquid pressure drop and then sends a signal to the control panel. These systems can be designed to allow some smaller particles, that do not need to be filtered, to pass through the cartridges. The cartridges then filter out only the designated sized particles, allowing the smaller particles that are not of concern to the process to pass downstream. The gear reduction unit, driven by the control unit, sets in motion the rotation of either the scrapper blades or the stainless steel brushes, which then remove the accumulated particulate from the filtering element. The scrapping blades are available in either PTFE (Teflon) or stainless steel. The brushes are available in stainless steel. The accumulated dirt and solids are then expelled through a stainless steel drain valve at the bottom of the filter, that can be actuated either pneumatically or electronically. Additionally, specially designed couplings on the filter body enable the cartridge to be backwashed manually when desired. The control panel for the self cleaning systems can be adapted to different potential voltages. Other aspects of the system, such as: cycle times; working times; pause times; and the pressure level on the differential pressure gauge, can be set according to the applications needs. Also, the customer can interface the filter controls with the main plant control panel, via remote access.
Self Cleaning Filter Advantages:
Continuous Operation: no plant downtimes, which are usually necessary to clean ordinary static filters or backwash the filter itself.
Low running costs, low electricity consumption, less maintenance costs for parts protected by the filter, such as spray nozzles, seals etc.
Elimination of impurities. Easier maintenance: there are fewer components subject to wear; simple disassembly procedure; technical assistance when needed.
Compact size: can be installed in facilities with limited space.
Technical assistance: Our engineering and sales staff can assist you with any questions or issues that you may have.
Applications:
PAPER MILLS: Filtering of water from flotation units, filtering of coatings, filtering of inlet and discharge coaters, filtering of water from wells, ponds, or rivers.
METAL MANUFACTURING: Filtering of primary water, filtering of cooling water for continuous casting processes, filtering of recycled water in rolling mills, filtering of recycled cooling water on aluminum extrusion lines.
MACHINE TOOLS: Filtering of lubricating-cooling emulsions, which may consequently be recycled.
PRODUCTION OF ENERGY: Treatment of recycled water to protect heat exchangers against clogging and wear.
MINING PLANTS: Filtering of water used by pumps and disk cutters, for safer use.
ARTIFICIAL SNOW PRODUCTION: Filtering of water from rivers, ponds, and lakes; filtering of water at pumping stations; and the final filter on the snow makers and guns
FOOD INDUSTRY: Filtering of primary and process water, filtering of washing water.
TEXTILE INDUSTRY: Filtering of textile plant water, filtering of recycled water, filtering of process liquids.
WATER PURIFICATION: Preliminary filtering upstream from wastewater purification plants.
CHEMICAL INDUSTRY: Filtering of primary and process water.