Filter presses for sewage treatment

Filter presses for sewage treatment

filter press(10-200 square metres type) The filter cloth is made of the products of the domestic famous brand designated company, which is specially customised according to the processed materials, with superior quality and durability. In addition, after years of research, our company has developed a leakage-free processing technology of filter cloth, which has been awarded a national patent (Patent No.: ZL 02220109.2). Through the non-leakage processing of the filter cloth, the capillary phenomenon of the filter cloth in the filtering process can be effectively prevented. When this kind of filter cloth is used for filtration, no leakage can be achieved between plates, which greatly improves the working environment of the filter press, and if the user has special needs, it can be customised to our company separately.

combiningSludge Filter PressUnloading process of high-frequency bi-directional drive reciprocating characteristics, taking fully into account the filter plate in the pressure in the filter plate between the larger adsorption force, the need to pull the plate each time the pre-drive a short period of time buffer force, reducing the pull plate in the bi-directional drive in the mechanical contact parts of the mechanical rigidity of the instantaneous impact and over-current frequent damage to parts. The technical solution adopted is the drive of the filter plate system using a hydraulic power source, pull the plate reciprocating movement, the oil motor run by the obstruction of the stop, send a signal to change the direction of the electromagnetic reversing valve, so that the oil motor reverse operation, and so on the reciprocating action, until the filter plate all pull. Adopting the hydraulic pulling device and hydraulic system and electrical automatic mechanical, electronic, hydraulic transmission integration linkage technology, the development of a buffer effect of hydraulic flexible drive safe and reliable energy-saving principle of the application of hydraulic automatic pulling system.

In the design of the puller, according to take the closed built-in puller settings, from avoiding material into the puller device and then running there is a certain self-cleaning, so that the puller in the long-term operation of the unloading of the ash layer is not subject to the influence of the mud material, the structure from the closed and self-cleaning puller device for the design and development. Reciprocating motion can be ground trough type pull plate device track surface falling filter slag or spoils shovel down, clean track, protect the track, solve the pull plate device in the unloading process to avoid contact with the material to improve the life and efficiency of the pull plate device. The puller, sprocket and chain are made of stainless steel.

Sewage Treatment Filter Press Filter Press Principle

Sewage treatment filtration structure is composed of filter plate, filter frame, filter bag and press diaphragm, both sides of the filter plate are wrapped by the filter bag, and when it needs to be equipped with press diaphragm, one group of filter plate is composed of diaphragm plate and side plate. Diaphragm plate of the substrate on both sides of the plastic diaphragm, diaphragm outside the package compounded with a filter bag, side plate that is the general filter plate. The material from the thrust plate when the material hole into the filter chamber, solid particles because of its particle size is higher than the inner diameter of the filter material (filter bag) is intercepted in the filter chamber, the filtrate is discharged from the filter plate under the drain hole. When the filter cake has to be extracted, in addition to diaphragm pressing, compressed gas or steam can also be used to reduce the water content of the filter cake by entering from the cleaning port and flushing out the water in the cake with the airflow.

1. Wastewater treatment filter press filtration method filtrate discharged out of the method is divided into open flow filtration and dark flow filtration.

Open-flow filtration: Each filter plate is equipped with a spout on the lower side of the outlet hole, and the filtrate is discharged directly from the spout.
Concealed flow filtration: Each filter plate is set up with a discharge channel hole on the lower side, and the discharge holes of several filter plates are connected to form a discharge channel, which is discharged by the pipeline connected to the discharge holes on the lower side of the thrust plate.
2. Washing mode when the filter cake has to be cleaned, sometimes there are streams of unilateral washing and two-way washing, dark streams of unilateral washing and two-way washing.
Open-flow unilateral cleaning is, the wash liquid from the thrust plate wash liquid into the hole one by one into, through the filter bag and then in the order of the cake, from the hole filter plate discharge, at this time there are holes in the plate discharge nozzle in the case of closure, no holes in the plate of the liquid discharge nozzle is open situation.
3. Open-flow bidirectional cleaning is, the liquid wash from the thrust plate on both sides of the liquid wash into the hole successively two back to wash, that is, the liquid wash from one side and then from the other side of the wash, the liquid wash with the exit of the import is diagonal direction, so also known as the bidirectional interspersed cleaning.
4. Dark flow unilateral flow washing is, wash liquid from the thrust plate wash liquid into the hole one by one into the perforated plate, through the filter bag and then in the order of the cake, from the perforated filtration plate row out.

5. Concealed flow two-way cleaning is the liquid wash from the stop plate on both sides of the two liquid wash into the hole successively two back to wash, that is, wash first from one side of the wash, and then from the other side of the wash, the liquid wash outlet is the diagonal direction, so also known as the concealed flow of two-way interspersed cleaning.

6. Filter bag: Filter bag is a main filtering material, the adoption and application of filter bag has a key function on the filtration effect, the use of filtering items in accordance with the PH value, solid particle size and other factors to adopt the appropriate filter bag material and inner diameter to ensure low filtration cost and high filtration efficiency, the application of the filter bag to ensure that the filter bag is flat and not folded.

Sewage treatment filter press structure principle

Sewage treatment equipmentIn the filter press is the use of a special filter media, the object of a certain pressure, making the liquid dialysis out of a mechanical device, is a commonly used solid-liquid separation equipment, widely used in our environmental protection and other industries in the sewage treatment system, as a professional senior sewage treatment company, today we will take you to understand the structure and working principle of the filter press in the sewage treatment equipment.

The structure of the filter press consists of three parts:

I. Racks

The frame is the basic part of the filter press, at both ends are the thrust plate and compression head, both sides of the beam will be connected to the two, the beam is used to support the filter plate, filter frame and compression plate.

1, thrust plate: it is connected with the support to situate one end of the filter press on the foundation, chamber filter press thrust plate in the middle of the feed hole, four corners there are four holes, the upper two corners of the holes is the washing liquid or pressing gas inlet, the lower two corners of the outlet (dark flow structure or filtrate outlet).

2、Pressure plate: It is used to press the filter plate and frame, and the rollers on both sides are used to support the pressure plate to roll on the track of the beam.

3, beam: is a load-bearing component, according to the requirements of the use of environmental anti-corrosion, you can choose rigid PVC, polypropylene, stainless steel cladding or new anti-corrosion coatings and other coatings.

Wastewater Treatment Filter Press Industry Applications

1、Chemical industry: dyestuff, pigment, caustic soda, chlorine mute monitor mud, silica, saponin, graphite, bleaching powder, Lide powder, fluorescent powder, insurance powder, chloric acid powder, copper sulfate, manganese sulfate, ferrous sulfate, ferric hydroxide, water purification agent (aluminium sulfate, polymerised aluminium chloride, alkaline aluminium chloride) and so on.

2、Pharmaceutical industry: antibiotics (aureomycin, erythromycin, spiramycin, wellbutrin, madicin, tetracycline, safranin, hygromycin), calcium phytate, traditional Chinese medicines, myo-inositol, growth derivatives of yarns, organophosphorus, saccharomyces cerevisiae, and so on.

3、Foodstuffs: yellow wine, white wine, fruit juice, beverage, beer, yeast, citric acid, vegetable protein, vegetable molassesin, glucose, maltose, starch sugar, starch, rice flour, corn syrup, gum, carrageenan, monosodium glutamate (MSG), spices, sauce liquid, oral liquid, soya milk and seaweed, anaconda tablets, benadryl tablet and so on.

4、Metallurgy: gold ore, silver ore, copper ore, iron ore, zinc ore, rare earth and other powder beneficiation.

5、Oil refining: white oil, fragrance oil, light oil, glycerin, mechanical oil, vegetable oil, etc.

6, clay: kaolin, bentonite, activated clay, porcelain clay, electronic ceramic clay, etc..

7, sewage treatment: chemical sewage, smelting sewage, electroplating sewage, electrolytic sewage, leather sewage, printing and dyeing sewage, brewing sewage, pharmaceutical sewage, environmental sewage, paper sewage.

8、Coal beneficiation industry, tailing coal treatment, coking coal and so on.

Technical parameters

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To learn more about our products, please contact our engineers: 188-517-18-517 for your customised solutions.

Contact Us

Sales:181-181-000-11

Selection:188-517-18-517

Mailbox:suton@su-ton.com

Technical parameters

Product Download DOWNLOAD

To learn more about our products, please contact our engineers: 188-517-18-517 for your customised solutions.

Contact Us

Sales:181-181-000-11

Selection:188-517-18-517

Mailbox:suton@su-ton.com

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