Grearth Filter Plate Co., Ltd

Chamber filter plate is a modification of filter plate and frame. Two compacted plates create an individual chamber; filter cake produces on the plates in layer form. As the thickness of the cake increases, the permeability and flow rate decreases causing longer filtration cycles and higher operation costs. during the later stage of filter cycle, high feed pressure is employed to dry the filter cake and this dewatering period is quite long. This period is usually called non-productive phase. chamber filter plates used alone are suitable for general applications where strict requirement of cake dewatering is not high. however, combination of chamber plate and membrane plate will effectively shorten the filter cycle and save operation cost. features conical pips in recessed area not only support the filter cloths but also provide a drain path for the filtrate. Diverse feeding methods satisfy different purposes, such as center feed, head feed, foot feed, corner feed and external feed. Other special feed arrangements can be customized for practical purposes. High pressure filtration makes the percentage of moisture of the cake far lower. Maximum filtration pressure is rated at 7 bar (101 psi) or 16 bar (232 psi). Maximum working temperature is up to 120°c。 construction chamber recessed filter plate is a solid plate. It typically consists of feeding hole, filtering area, drain hole, sealing edge, and hard-point. The number of hard points depends on the thickness of the plate. Feed position is not fixed. Five types of feed position – central, corner, external, head and foot. The sealing edge is machined parallel to seal when the plates are pressurized. material polypropylene or pp is a frequent raw material of filter plate. It has chemical inertness, high resistance against oxidation, corrosive media and high temperature, light weight and high strength.

Replaceable membrane filter plate can be roughly separated into three parts - core plate and two membranes. This special construction gives its capability of replaceable membrane apart from the main advantages of welded membrane filter plate. Once the membrane has been damaged due to aging or external forces, just replace the membrane without using a new membrane plate. What is more, the membrane replacement can occur in the filter press. note: replaceable membrane plates must be cooperated with chamber filter plate. features easy membrane replacement even after a couple years of operation core body plate and membrane can be fabricated in different materials. Standard thickness of the membrane is rated at 3 to 4 mm. Follow-up maintenance cost will be much lower. standard working pressure ranges from 7 bar to 16 bar. Working temperature is up to 120â°c. materials various materials are used, such as polypropylene, thermoplastic elastomer (tpe), synthetic rubbers such as epdm, nbr, and pvdf. The individual part of replaceable membrane filter plate can be made of different materials to meet with diverse applications. feed position standard: center feed, corner feed, head feed and external feed. Other special feed positions are manufactured for particular purposes. standard size 470, 8000, 1000, 1200, 1300, 1500, 2000mm in square shapes. For odd shapes or larger sizes are available for special orders. diverse sizes of replaceable filter plate are manufactured. Special sizes or shapes are also customized. rubber membrane filter plate features good flexibility and is compatible with most types of slurry. high pressure membrane filter plate suitable for extremely high working pressure.

Welded membrane filter plate is the top priority when selecting a filter plate, for it significantly shortens the filter cycle by skipping the non-productive phase of pressure filtration. A couple of welded membrane plates can be used alone or combined with chamber plate. The combination makes full use of each otherâ��s advantages. Chamber filter plate is quite effective in the first part of filtration, and during the non-production part, membrane plate will significantly shorten the operation time and reduce the dryness of the cake. welded membrane plate is an integral whole, and replaceable membrane plate can be separated into core body and membrane. Due to this character, the whole membrane plate should be replaced whether core body plate or membrane has damaged. This will increase production cost. advantages substantially reduce the moisture percentage of filter cake. Reduce the filtration time and improve production efficiency. Complete separation of the membrane squeeze medium and the filtrate to avoid chemical actions. Pip-shaped molded structure prevents the membrane from laying flat on the body plate. A uniform distribution of the squeeze medium enables the membrane to expand evenly and creates a uniform squeezing effect on the filter cake. Thickness of membrane is between 3 mm to 4 mm. Operation pressure is usually rated at 7 bar to 16 bar. Maximum working temperature is up to 120â°c. Materials core body plate can be manufactured by polypropylene, synthetic rubbers such as epdm, nbr, and tpe (thermoplastic elastomers). flexible synthetic rubbers are very suitable for difficult and uneven formation of cake. Tpe or thermoplastic elastomer combined the main advantages of polypropylene and rubber, features good mechanical properties and excellent corrosion resistance by heavy metals.

We are offering ceramic filter plate. ceramic filter plate is an alternative method of solid and liquid separation. Porous ceramic filter tends to replace conventional filter plates for its extremely high working temperature, chemical inertness and excellent resistant to almost types of slurry. ceramic filter is used to remove solid particulate from liquid and gas in chemical process, petrochemical, food and beverage, pharmaceutical industries, paper making and ore concentrate dewatering of copper, lead, zinc, iron, silver, sulfur, gold for its unique porous structure. features high mechanical strength excellent resistance against abrasion and corrosive against acid and alkali. pore size is uniform and precise. chemical inertness makes it suitable for a great number of applications. extremely low moisture of filter cake is particularly. filtrate treated by ceramic filter plate is clear enough to be used as industrial circulation water. porous ceramic plate can be cleaned by organic solutions and reused for many times. non-destructive permeability test is performed to verify pore size and filter ration. product description open porosity: 40% - 90% pore size: 0.25 to 90 microns dimensions: 112 to 812 square meter materials aluminum oxide is the most popular raw material of ceramic plate. Its maximum operation temperature can reach 1400 ℉. silicon carbide is the premier choice for harsh applications, for its maximum working temperature can be as high as 1800 ℉. ceramic filter plate ceramic filter plates have been cleaned by organic solvents and can be reused.

We are offering filter plate and frame for general press filtration. filter plate and frame is common used for solid-liquid separation. Its individual chamber is filled with slurry to be filtered, and the cake produces on the filter cloth. The cake is dewatering by increasing the pressure in the chamber. the embedded filter cloth usually includes polyester and polypropylene, which have a good resistance to corrosive slurry as well as high tensile and tearing strength. filter plate and frame recessed area is embedded with polyester filter cloth typical filer plate and frame in square shape features: external feeding to maximize the filtration area filter cloth is easy to handle and clean. filter cake thickness is adjustable usually from 10 mm to 60mm. not suitable for high requirements of filter cake dryness. colors come in white and green. material filter plate and frame is made of polypropylene (homopolymers or copolymers) or other polypropylene modifications. The high-strength pp has excellence resistance to acid and alkali, corrosion, oxidation. pressure and temperature maximum operating pressure for filter plate and frame is rated 5 or 7 bar (72 or 101 psi) depending on the thickness of the plate. While the working temperature for filter plates and frames are depended on other factors, including filtration pressure, the chemical composition of the slurry and the cycle period. Usually, its working temperature ranges from -5â°c to 120â°c. size the most common sizes are in square, such as 250, 300, 400, 470, 500, 600, 630, 800, 915, 1000, 1067, 1118, 1200, 1220 mm. odd shapes or different sizes are also available on special orders. applications chemical industry pharmaceuticals food and beverage industries filter plate and frames come in diverse sizes from 250mm to 1220mm. Other special sizes or other different shapes are bespoke.