FYGLOverview of Type Precision Filter Machine

lShanghaiFengyu”The GL series PA/PE precision filter is suspended inside a vertical enclosed body“Fengyu”The microfiltration tube is a filter machine composed of filtering media, and there is a pneumatic slag discharge port at the bottom of the equipment. It has the characteristics of large filtration area per unit volume, vertical structure, and small footprint.

lSealed filtration, clean production; Easy to operate, the opening and closing of the pneumatic slag discharge port only requires the operation of a few valves; The regeneration of the filter tube is convenient, and the back blowing regeneration of the filter tube is very easy. Just open the back blowing valve to complete it.

lIt has been widely used in industries such as basic chemical engineering, fine chemical engineering, wet metallurgy, fertilizers, pharmaceuticals, food, environmental protection, etc. It is suitable for precision cake filtration with large processing capacity, high solid content, and requirements for filter cake degree.

FYGL precision filter machinePerformance and Characteristics

1“FYGL Precision Filter MachinePolyethylene PE formed by firing/PAC microporous tube, as a filtering medium, has fine and curved capillary pores that can filter solid particles above 0.3 microns. The filtrate is clear, and for particles below 0.3 microns, there is only a slight breakthrough during start-up. Once a thin filter layer is formed, it quickly becomes clear.

2When it is too high, the deformation is very small under the action of tension and pressure. The filter cake formed on the outer surface of the filter tube only needs to be compressed with airagainstBlow, it is easy to remove slag, even if the viscosity is high, as long as the compressed air pressure is high and the intake speed is fastalsoCan make it detach. In addition, after the filter cake is blown away by compressed air, the air is ejected at high speed from the capillary pores, and the kinetic energy of the airflow can forcibly discharge the solid particles that are blocked in the capillary pores during filtration. Therefore, the slag removal and regeneration of the filter tube of this filtration device are very convenient, and the labor intensity of the operators is relatively low.

3ShanghaiFengyu“FYGL precision filter "microporous tubeIt is resistant to acids, alkalis, aldehydes, fatty hydrocarbons, and radioactive radiation, with excellent chemical properties and good resistance to organic solvents. It can withstand organic solvents such as esters, ketones, and ethers below 80 ℃.

4ShanghaiFengyu“FYGL precision filter "microporous tubeIt can be reprocessed by car, planing, ironing, welding or bonding methods, and the specific gravity is also very light, ranging from 0.5 to 0.7, making installation very convenient.

lFilter media for separating liquid and solid:
It has been successfully used for the separation and filtration of sugar solution and activated carbon in glucose production; Crystal filtration in tetracycline production; Filtration of Barium Sulfate in the Production of Photographic Film
Filtration of chromium hydroxide or barium chromate in chromium containing wastewater treatment; Filtration of zinc hydroxide in zinc containing wastewater treatment; Lead powder filtration of lead containing wastewater; Acid bath and sulfur filtration in chemical fiber production; The filtration of barium sulfate and barium sulfide in the production of Lide powder, etc. In short, solid particles larger than 0.3 microns can be filtered.

lAs a liquid clarification filter medium:
It has been successfully used for injection liquid filtration and injection bottle washing water filtration in the pharmaceutical industry injection production; Purification and filtration of water quality in hydrogen peroxide production; Purification and filtration of electroplating solution in the electroplating industry; Re filtration of fermentation filtrate in antibiotic production; Purification and filtration of glucose solution in glucose production; Purification and filtration of electrodialysis water; Liquid purification and filtration in acrylic fiber production, etc. In short, it can be used for purification and filtration of various liquids, with high filtration accuracy and clear filtrate.

lFilter media for gas separation of dust, water droplets, and oil droplets:
It has been successfully used for the filtration of ammonia separation dust, water droplets, and oil droplets in melamine production; Compressed air purification and filtration in the production of injections in the pharmaceutical industry; Air separation and dust filtration in watch production; In short, it can be used for purification and filtration of various gas separation solids, oil droplets, water droplets, and other foreign substances.

lFilter media for liquid to liquid separation:
It can be used to filter foreign objects such as oil droplets in wastewater. After filtration, the oil content in the wastewater is only about 2ppm, which is significantly lower than the national standard.

lPrecision filtration of liquid products, liquid raw materials, and liquid intermediates in the chemical industry production:
Such as filtration of silicon sulfate, hydrogen peroxide, liquid alkali, sulfuric acid, phosphoric acid, methanol, ethanol, acetone, aluminum sulfate, iron free aluminum sulfate, chloroform, dichloroammonium, hydrogen chloride, polyaluminum chloride, crystalline salts, sulfuric acid bath, sodium thiocyanate, etc. Powdered activated carbon, boiler water, well water, river water, production water, coal mine filtered coal wastewater can be recycled, and precision filtration such as plate and frame pressure filtration and centrifuge can be carried out.
Heavy metal wastewater, such as electroplating wastewater, circuit board wastewater, trisodium lead sulfate, copper, iron red, iron yellow, zinc containing, zinc chloride in copperplate paper production, and plasma wastewater containing cadmium, copper, chromium, nickel, and lead, is treated by chemical methodsPEMicro porous tube filtration can meet emission standards.
Chemical wastewater, alcohol, white paper pulp, dyes, leather and other wastewater treatment; Such as filtration of sodium nitroprusside, carbon black, lead acetate, aluminum sulfate, manganese sulfate, as well as recovery of chemical products such as catalysts, sodium carbonate, polystyrene, etc. Treatment of wastewater containing fluorine, sulfur, acid, and oil yellow phosphorus. The processes of solid-liquid separation, liquid clarification, aeration, bubbling, and oxygen extraction in the production process and "three wastes" treatment. And currently, the coarse filtration and fine filtration in household and collective purification devices both domestically and internationally have achieved good social benefits.

FYGL precision filter machineofclassification

1、 Wet slagging type (one layer filtration)
Key Features:
1. Using the microporous tubes produced by our company as the filtering medium, the filtration accuracy is high, and it can be repeatedly regenerated for long service life.
2. Strong acid and alkali resistance
3. Continuous filtration under closed conditions has the advantages of high safety, easy operation, low labor intensity, and small footprint.
4. The slag discharge outlet can be designed in various forms such as manual, disc valve, ball valve, pneumatic quick opening, etc. as needed.

2、 Dry slag type (two-layer filtration)
Key Features:
1. Using microporous tubes as filtering media, the filtration accuracy is high and it can be reused repeatedly.
2. Strong acid and alkali resistance.
3. The bottom layer of the filter machine is equipped with microporous tubes, which make the filtered residue relatively dry. The filtrate can be filtered in one go, which is very effective for intermittent filtration and filtration in batches that cannot be mixed.
4. The raw materials can be stirred, washed, aerated, and filtered in one go in the filter machine, achieving the desired effect.
5. According to the specific situation, a sandwich insulation layer can be added to the outer layer.
6. The slag discharge outlet can be set as pneumatic quick opening or manual (specific processing can be carried out according to customer requirements).

FYGLPrecautions for operating precision filter machine

1. When starting the filter, there should be at least 5-10 minutes of low-pressure start-up time, with a working pressure not exceeding 0.03Mpa, and then gradually increase the pressure. Avoid quickly increasing the pressure to the operating pressure when moving together.

2. The filtering operation pressure generally does not exceed 0.3MpabodyThe pressure difference value should be determined based on the material properties.

3. After a certain number of uses (depending on the material properties), microporous tubes need to undergo chemical regeneration, that is, cyclic filtration regeneration, which has a shorter regeneration time and is safer.

4. The valve for backwashing the filter shoulduseBall valves should not use gate valves or globe valves, and the diameter of the ventilation pipe used for blowback should not be too small. At least not less than 40 millimeters. The action of opening the ball valve during blowback should be rapid.

5. Due to its good mechanical properties, microporous tubes do not suffer from problems such as breakage. Compressed air with a pressure of 0.4-0.6Mpa is used for reverse blowing and slag removal, and the slag removal is good. Reverse blowing also plays a role in regenerating capillary pores, which can blow out most of the solid particles blocked in the capillary pores. However, after long-term use, some solid particles may accumulate in the capillary pores, affecting the filtration effect. At this time, chemical regeneration can be carried out, that is, the microporous tube is soaked in acid or alkali solution, and then rinsed clean with water. The repeated use effect remains the same without any attenuation. In general, as long as the air blowback method is mastered, chemical regeneration is basically not required. One thing to note is that when encountering viscous materials for filtration, these substances are easily adsorbed on the walls of microporous tubes and are not easily blown off during reverse blowing. They stick like a layer of glue on the outside of the tube wall, which greatly affects the filtration effect. In this situation, targeted measures should be taken to eliminate the adhesive state of the material in order to effectively filter it.

6. No matter how many filter machines are used, a reverse blowing "gas storage tank" with a capacity of at least 0.5M must be equipped³，10M³The above filter generally requires 1M³The gas storage tank of the electroplating solution filter can be directly blown back with air from a small air compressor without using a gas storage tank.

7. Micro porous tubes can be reused repeatedly. The regeneration method is simple and can be regenerated by gas blowingorRegeneration can be achieved through chemical methods (soaking in 2% sodium hydroxide solution or commercially available caustic soda solution for 12-24 hours, washing with water, and then soaking in 2% hydrochloric acid or edible white vinegar for 12-24 hours) or by heating with hot water.