Industrial Filters

Product Details:

We are prominent and trustworthy manufacturer and supplier of the top quality range of Rotary Vacuum Drum Filter. This drum filter is manufactured using highly advanced techniques & quality material to fulfilling the requirements of our customers. Also, our offered drum filter provides operating flexibility to handle dewatering, washing. Customers can avail this drum filter from us at competitive rates.

Features:

• Ease of use
• Precisely engineered
• Hassle-free functioning

Other Details:

Drum:

• The drum is supported by a large diameter trunion on the valve end and a bearing on the drive end
• The drum face is divided into circumferential sectors each forming a separate vacuum cell
• The internal piping that is connected to each sector passes through the trunion and ends up with a wear plate having ports that correspond to the number of sectors

Valve:

• A valve with a bridge setting controls the sequence of the cycle so that each sector is subjected to vacuum, blow and a dead zone
• When a sector enters submergence vacuum commences and continues through washing, if required, to a point that it is cut-off and blow takes place to assist in discharging the cake
• The valve has on certain filters adjustable blocks and on others a fixed bridge ring
• Adjustable bridge blocks enable the optimization of form to dry ratio within the filtration cycle as well as the "effective submergence" of the drum when the slurry level in the tank is at the maximum
• The majority of drum filters have a valve with three bridge blocks and a single row pipe plate as shown below and on the right
• The duty of the bridges is: Vacuum and blow zones separating bridge. This bridge cuts off the vacuum so it is slightly wider than the internal pipe port
• Dead zone bridge: This bridge opens to vacuum once a compartment submerges
• Start-up assist bridge: At start-up, the upper vacuum zone is open to atmosphere and a cake may be formed only when closing the valve that controls this zone
• Once the cake starts to emerge from the tank the valve is gradually opened and fully opened when the entire drum face is wrapped in the cake
• Since in continuous operation both lower and upper zones are under vacuum this bridge is slightly narrower than the internal pipe port so that the vacuum is continuous and the cake is held onto the drum

Drum Deck:

• The drum deck is divided into separately isolated compartments each subjected to vacuum or blow while the drum is in rotation
• The timing of vacuum or blow depends on the bridge set of the main valve
• The compartments are divided with grooved division strips along the drum face and around the circumference of the drum head
• These division strips are holding synthetic grids shown on the right that covers the entire drum and serve to support the filter cloth
• The filter cloth itself is fastened to the drum face by inserting special caulking ropes into the grooves

Filter Cloth:

• The filter cloth retains the cake and is fastened to the drum face by inserting special caulking ropes into the grooved division strips
• Nowadays, with some exceptions, they are made from synthetic materials such as polypropylene or polyester with monofilament or multifilament yarns and with sophisticated weaves and layers
• The image on the right shows the method of joining the cloth ends with clippers and to retain the fines from passing through to the filtrate multifilament strings are threaded across the entire cloth width
• Another option quite often used on belt discharge filters is to join the ends with a special sewing machine

Product Details:

As compared to other continuous filtration processes, Horizontal Leaf Filter offers the simplicity of the process, easy operation, and maintenance, modest space requirement low energy consumption and low capital outlay.

Product Details:

Bag Filters are used for the recovery of particulate matter from exhaust gas which enables:

• Avoid pollution problems
• Recover finished product thus increasing plant yield

Apart from bag filters other equipment such as cyclones, venturi, scrubbers, electrostatic precipitates etc. can be used for the recovery of particulate matter. However, out of all these equipment bag filters becomes the best choice under the following circumstances:

• The final product is very expensive and as a result, high collection efficiency is required.
• The particulate size is very fine.