Diaphragm filter press with belt conveyor for wastewater filtration treatment
✧ Product Features
Diaphragm filter press matching equipment: Belt conveyor, liquid receiving flap, filter cloth water rinsing system, mud storage hopper, etc.
A-1. Filtration pressure: 0.8Mpa;1.0Mpa;1.3Mpa;1.6Mpa. (Optional)
A-2. Diaphragm squeezing cake pressure: 1.0Mpa;1.3Mpa;1.6Mpa. (Optional)
B、Filtration temperature:45℃/ room temperature; 65-85℃/ high temperature.(Optional)
C-1. Discharge method - open flow: Faucets need to be installed below the left and right sides of each filter plate, and a matching sink. Open flow is used for liquids that are not recovered.
C-2. Liquid discharge method -close flow:Under the feed end of the filter press, there are two close flow outlet main pipes, which are connected with the liquid recovery tank. If the liquid needs to be recovered, or if the liquid is volatile, smelly, flammable and explosive, dark flow is used.
D-1. Selection of filter cloth material: The PH of the liquid determines the material of the filter cloth. PH1-5 is acidic polyester filter cloth, PH8-14 is alkaline polypropylene filter cloth. The viscous liquid or solid is preferred to choose twill filter cloth, and the non-viscous liquid or solid is selected plain filter cloth.
D-2. Selection of filter cloth mesh: The fluid is separated, and the corresponding mesh number is selected for different solid particle sizes. Filter cloth mesh range 100-1000 mesh. Micron to mesh conversion (1UM = 15,000 mesh---in theory).
E.Rack surface treatment: PH value neutral or weak acid base; The surface of the filter press frame is sandblasted first, and then sprayed with primer and anti-corrosion paint. The PH value is strong acid or strong alkaline, the surface of the filter press frame is sandblasted, sprayed with primer, and the surface is wrapped with stainless steel or PP plate.
F.Diaphragm filter press operation: Automatic Hydraulic Pressing; Filter cake washing, Automatic Filter Plate Pulling; Filter Plate Vibrating Cake Discharge; Automatic Filter Cloth Rinsing System. Please kindly tell me the functions you need before ordering.
G.Filter cake washing: When solids need to be recovered, the filter cake is strongly acidic or alkaline; When the filter cake needs to be washed with water, please send an email to inquire about the washing method.
H.Filter press feeding pump selection: The solid-liquid ratio, acidity, temperature and characteristics of the liquid are different, so different feed pumps are required. Please send email to inquire.
I.Automatic belt conveyor: The belt conveyor is installed under the plate of filter press, which is used for transporting the discharged cake after the filter plates have been pulled open. This device is suitable for the project which is not convenient to make the base floor. It can delivery the cake to the designated place, which will reduce much labor work.
J.Automatic dripping tray: The drip tray is installed under the plate of filter press. During the filtration process, the two plate trays are in a closed state, which can lead the dripping liquid during the filtration and the cloth washing water to the water collector sideways. After the filtration, the two plate trays will be opened to discharge the cake.
K.The filter press cloth water flushing system: It is installed above the main beam of the filter press, and it is equipped with automatic travelling function, and the filter cloth is automatically rinsed with high pressure water (36.0Mpa) by switching the valve. There are two kinds of structures for rinsing: single-side rinsing and double-side rinsing, in which the double-side rinsing has brushes for good cleaning effect. With the flap mechanism, the rinsing water can be recycled and reused after treatment to save resources; combined with diaphragm press system, it can get lower water content; assembled frame, compact structure, easy to disassemble and transport.
Filter Press Model Guidance | |||||
Liquid name | Solid-liquid ratio (%) | Specific gravity of solids | Material status | PH value | Solid particle size (mesh) |
Temperature (℃) | Recovery of liquids/solids | Water content of filter cake | Working hours/day | Capacity/day | Whether the liquid evaporates or not |



① Conveyor belt: The device is applicable to the work site that is not easy to do foundation. It is a supporting device, installed under the filter plates of the filter press to convey the filter cake unloaded when the filter plate is pulled apart, and can transport filter cakes to the designated place, reducing the labor intensity of employees.
② Cylinder: In the hydraulic system, the oil cylinder is responsible for converting the pressure energy of the liquid into mechanical energy, and driving the load for linear reciprocating or rotary motion.
Pressure gauge: It shows the compressing plates pressure of oil cylinder.
③ Membrane Filter Plate: The diaphragm filter plate is composed of two diaphragms and a core plate. The external medium (water or compressed air, etc.) is introduced into the chamber between the core plate and the membrane to make the membrane bulge so as to squeeze the filter cakes, further reduce the water content of the filter cakes. The diaphragm is the main component.
④ Filter press beam:The whole diaphragm filter press beam is assembled and welded with Q345B steel plates. After high-speed centrifugal shot blasting and rust prevention, it is sprayed with anti-corrosion coating, and the surface is sprayed with three layers of resin paint.
⑤ Diaphragm Pump: QBY/QBK series pneumatic diaphragm pump is the most novel pump in China at present. It can pump out and absorb all kinds of corrosive liquids, such as liquids with particles, high viscosity, volatile, flammable, explosive and highly toxic, ceramic glaze slurry, fruit slurry, glue, oil recovery in oil tanker warehouse, and temporary tank pouring. The flow passage parts of the pump body are made of stainless steel, aluminum alloy, cast iron and engineering plastics, and the diaphragms are made of NBR, fluororubber neoprene, polytetrafluoroethylene and perfluoroethylene (F46) according to different liquids.QBY series pneumatic diaphragm pump uses compressed air, steam and industrial waste gas as the power source, with a suction head of 7m, a lift of 0-90m, and a flow of 0.8-40 m3/h, which can be adjusted steplessly.
We can also equip with other kinds of feeding pump according to the different raw materials too.
⑥ Plate pulling system:The automatic plate pulling system is independent, and users can choose whether to install it or not. It adopts stainless steel chains and stainless steel manipulators.
⑦ Electric control system: It is mainly composed of plastic spraying case, Schneider electrical components, Siemens PLC, etc, and fully automatic control the filter press.
✧ Feeding Process

✧ Application Industries
It is widely used in solid-liquid separation process in petroleum, chemical, dyestuff, metallurgy, pharmacy, food, coal washing, inorganic salt, alcohol, chemical, metallurgy, pharmacy, light industry, coal, food, textile, environmental protection, energy and other industries.
✧ Filter Press Ordering Instructions
1. Refer to the filter press selection guide, filter press overview, specifications and models, select the model and supporting equipment according to the needs.
For example: Whether the filter cake is washed or not, whether the effluent is open or close, whether the rack is corrosion-resistant or not, the mode of operation, etc., must be specified in the contract.
2. According to the special needs of customers, our company can design and produce non-standard models or customized products.
3. The product pictures provided in this document are for reference only. In case of changes, we will not give any notice and the actual order will prevail.