Compared with ordinary sludge dryers, it can save nearly 20% of coal consumption and save costs for customers. The combined sludge turning and transporting system is at the heart of the drying plant. The sludge is transported through the hall virtually continuously or as an option in batches. With its double shovel the turning/transporting unit can not only aerate, break up and move the sludge through continuous shovelling but also achieve a controlled distribution of sludge in its shovels.
Sludge thickening is the process to reduce the volume of sludge by removing the amount of water. In general, the sludge that produced from this process are containing 1-4 % of suspended solid. There are 2 common systems that usually used for sludge thickening. Those are thickening system by gravity and thickening system by floatation. Where no, or not sufficient heat is available, we withdraw heat from treated wastewater . The mechanism is simple, few parts need to be tested and easy to maintain.
The special wedge-type stirring heat transfer blades in the equipment have high heat transfer efficiency and self-cleaning function of the heat transfer surface. On-site thickening and dewatering of sludge is a fundamental part of all current wastewater treatment options to significantly reduce the sludge volume. This has a huge impact on costs for transportation, effluent disposal, storage and drying. It is also highly relevant for sludge to be used as digester feed for biogas production, thermal processes and composting. To meet every need, Alfa Laval offers a complete spectrum of robust, well-proven technologies that effectively separate off the liquid phases and achieve a high level of dry solids content. Sludge dryer can dry 90% moisture content to finished product at one time.
It is a separated solid suspended in a liquid, typically containing major quantities of interstitial water between its solid particles. This material can be dried to cut its volume and reduce most of the moisture content of the biosolids present in the sludge. Belt presses are an effective and efficient way to clean all types of process water, waste water, industrial and agricultural water, and more. Once the solids are separated out using the belts and rollers, they are typically augered into a container or truck for easy disposal. Contact us today to learn more about our belt press sales, belt press rentals, dewatering, water clean-up projects, and more.
In collaboration with Nara Machinery Japan, KILBURN offers Paddle Dryer for drying of Industrial and Municipal waste water sludges. This dryer is indirectly heated conduction type dryer with very high thermal efficiency. It consists of 2 hollow shafts with set of hollow Uniform Shaped Paddles welded to it and revolving inside a jacketed casing.
Our engineer is available to service machine overseas and train your workers how to use the machine and provide the installation and commissioning service at your site. The stator is equipped with steam doom,which is used to containing waste steam. The rotary drier is mainly composed of stator, rotor and driving device. Some of these can also be used for mud dewatering, mine tailings, pond clean-up and dredging. AS-H Belt Thickeners with integrated polymer mixing for small to medium capacity. • When the cake cracks and the vacuum is lost, the vacuum pump is shut off.
Many design variations are possible, including the layout of drainage piping, the thickness and type of gravel and sand layers, and construction materials. BENENV has more than 2 decades of experience in wastewater and sludge treatment. In the discharge area, the drum is not set in this area, and the material can roll to the discharge port in this area to complete the drying process. In the guide area, the wet sludge enters the zone and the hot wind contact with the hot air rapidly evaporates. The materials are copied by the large guide Angle, which is not bonded to be imported into the next workspace. Dried or treated sludge offers a wide range of applications, mainly including agricultural land application.
Container-type Sludge Dryer Suitable for sludge dewatered from chamber press . Join our growing community of professionals who are currently subscribed to weekly newsletters, product alerts, job alerts, and our monthly event updates and article newsletters. The products with special discounts and extra services are marked by tags.
The sludge will be dried during the heat transfer between hot air and sludge. Sewage sludge dryer is designed with the best working conditions, which enables it to save 10-15% of energy and increase 10-15% of productivity compared with common dryers. Sludge dewatering is the process to reduce the water after thickening process.
When the bed is filled with sludge, the water permits the sludge to settle and initially compact against the screen so that the settled sludge acts as the filtration media. Next, the water is allowed to percolate at a controlled rate by controlling the outlet valve. After the free water has been drained, the sludge further concentrates by drainage and evaporation until it is ready for removal. In a high-density polyurethane media system, 300 mm (12-in.)-square panels with a built-in underdrain system are paved over a sloped slab. Sludge drying beds with greenhouse-type enclosures allow dewatering sludge throughout the year, regardless of the weather. Sometimes a roof is placed over the top of the drying bed, leaving the sides open.
Our use of and indirect heat provides an even heating surface and allows for tighter temperature control making it less likely to cause the sludge to burn or smolder. In the city building, sewage disposal is always a hard nut to crack for local authorities. It is mainly for the reason that at present the urbanization is increasing at a surprising speed and the city improvement is one of the leading tasks.
However, these days the indirect thermal drying is becoming more popular as a means of decreasing sludge volume by removing the moisture content and attaining a dry solids content of 90%. The process reduces the environmental impact and produces a stabilized dry granular product that is easy to store, and deliver and suitable for agricultural use. The sludge produced during waste water treatment has a water content between 97 % and 99.5 %. In sludge thickening, the dry and solid content of sludge is increased by reducing the water content with low energy input.
While industrialization procedure is getting faster and faster, sludge quantity grows also very fast. Put customer at first place and provide high-quality and cost-effective products to meet customers’ different demands. Aimed at varioius projects’ requests, we can provide special and complete drying solutions. The Offered Belt Filter Press is a Combination machine of a drum thickener placed at top and a Belt Press at bottom.