OR-TEC - Belt Thickener
From Sludge Dewatering
This rugged and easily operated system can be set-up for thickening or dewatering. If you're looking for an economical and simple solution to your thickening concerns, you'll find an answer in the OR-TEC Thickener System. Designed with ease of operation, low maintenance, cost effectiveness and efficiency in mind, the OR-TEC Thickener is a proven leader in the municipal, industrial and agricultural realms. It is constructed entirely of stainless steel and can be trailer mounted for multiple site operation. It is an excellent solution for small to medium size plants where babysitting equipment is not an option and reliable, high quality equipment is a must.
Products Details
In many cases the OR-TEC Thickener can be converted to a dewatering belt press simply by changing the belt. This allows operators to go from thickening to dewatering and back again as needed quickly and inexpensively.
The OR-TEC Thickener is a complete operational and self-contained system which includes:
- Thickener
- Control Panel
- OR-TEC Blend Polymer Dosing Unit
- Thickened Sludge Pump
- Wash Water Pump
- Flocculation System
- Automatic Belt Tracking
- Thickened Sludge Monitoring System
Additional Features:
- Fully automated easy to use Touchscreen Controls
- Skid mounted, turnkey, factory tested complete system
- Stainless steel frame, flocculation tank, mixers, rollers, pans, trays and fasteners
- Highest quality pumps, motors and geardrives
- OR-TEC designed and manufactured Polymer Dosing system and Screw Auger ensures 100% equipment compatibility
- Onboard flow meters
- Available with SCADA ready controls
- Many other features and configurations available
All OR-TEC Thickener Systems are designed, engineered, manufactured and assembled in the USA
Belt Thickener Process Description
Chemical Dosing
AnOR-TECBlend emulsion polymer feed system automatically makes up and delivers the polymer and water solution to the injection site. As an alternate, a solution of suitable polymer is made up in a stainless steel chemical mixing / storage tank. The tank is usually designed with a capacity for one day's operation of the system.
Sludge is pumped to a stainless steel flocculation tank by a variable capacity pump. Prepared polymer is simultaneously injected to the inlet of the flocculation tank by a variable speed chemical dosing pump. Here a thorough mixing occurs that is aided by a variable speed flocculator fitted in the tank. Speed adjustments are manual.
Flocculated sludge flows from the flocculator down a sludge feed chute. This chute provides a gentle, even distribution of sludge over the gravity drainage section and a uniform thickness on the thickening belt. The drainage area allows for the separation of the free water contained within the sludge and its consequent discharge into the drainage tray. Capillary action takes place as the thickening belt moves across stainless steel supported UHMW belt supports. The drainage area is sealed by polypropylene skirting that is bolted to the top trays and rests on the filter cloth.
Thickened sludge is continuously removed by a fixed scraper blade acting against the final roller. A thickened sludge pump or screw auger can be used to the convey the thickened sludge.
The filter belt is continually washed by pump generated high pressure water sprayed through fine nozzles. Belt wash water and filtrate are collected in a stainless steel drainage tray. This runoff is funneled to the customer's drainage system via the supplied 4' diameter flanged outlet in the tray. In most cases, the filtrate is acceptable as reuse for wash water, as is the final effluent of the W.W.T.P.
The system can be automatically controlled. Start-up is simple and requires a minimum of time. The unit's design, incorporating variations in both speed of the belt, sludge pump, polymer dosing and flocculation mixer offer a high degree of flexibility to the end user.
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