Membrane Filter Press Manufacturer | Deep Sludge Dewatering | Dazhang
Membrane Filter Press
Membrane Filter Press
Membrane Filter Press
Membrane Filter Press
Membrane Filter Press
Membrane Filter Press
Membrane Filter Press
Membrane Filter Press

Membrane Filter Press

Dazhang manufactures membrane filter presses for deep sludge dewatering and solid-liquid separation. Filter areas from 30–1000 m² with membrane squeezing and automatic configurations.

  • 30-1000
  • 870、1000、1250、1500、2000
  • Auto/Semi-automatic/Manual
  • Quick Open, etc.
  • 0.8-4.0
  • Visible/Invisible
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  • Description
  • Specifications
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What Is a Membrane Filter Press?

A membrane filter press is an industrial solid-liquid separation system with an additional filter cake squeezing stage. Unlike a conventional chamber filter press, the membrane plates expand after the chambers are filled, using water or compressed air to apply additional pressure to the filter cake.
This secondary squeezing process removes more residual liquid from the cake, helping to achieve lower cake moisture and, for many materials, a shorter dewatering cycle.

Key Advantages

Lower Filter Cake Moisture

  • After the initial filtration stage, the membrane plates expand and apply additional pressure to the filter cake, removing more residual liquid and achieving a lower final moisture content.

    • Shorter Filtration Cycle

  • Membrane squeezing accelerates the dewatering process after cake formation and can reduce the overall filtration cycle for suitable materials, improving processing efficiency.

    • Higher Liquid Recovery

  • Additional squeezing helps recover more liquid retained inside the filter cake, which is especially valuable when the filtrate or process liquid has economic value.

    • More Uniform and Compact Filter Cake

  • Membrane compression produces a denser and more uniform cake structure, which can improve cake washing efficiency and facilitate subsequent drying or discharge.

    • Suitable for Difficult-to-Dewater Slurries

  • Membrane filter presses are particularly effective for high-viscosity slurries, fine particles, compressible solids, sludge, and other materials that are difficult to dewater using conventional filtration alone.

    • Lower Downstream Treatment Costs

  • A drier filter cake contains less liquid, helping reduce costs associated with transportation, thermal drying, incineration, storage, and final disposal.

    • Chamber vs. Membrane Filter Press: Which One Should You Choose?

    Chamber and membrane filter presses are widely used for solid-liquid separation and industrial sludge dewatering, but they differ in dewatering method, equipment cost, operating requirements, and final filter cake moisture. The right choice depends on the characteristics of the slurry, required processing capacity, target cake dryness, and overall operating costs.

    Parameter Chamber Filter Press Membrane Filter Press
    Dewatering Principle Slurry filtration and filter cake formation are mainly achieved by the feed pressure generated by the slurry pump. After the initial filtration cycle, the filter cake is further compressed by membrane squeezing to remove additional moisture.
    Filter Cake Moisture Provides reliable dewatering performance for most standard industrial filtration applications. Typically produces a drier filter cake with lower residual moisture, making it suitable for applications with strict cake dryness requirements.
    Equipment Cost Generally has a lower initial investment due to its simpler plate design and fewer auxiliary components. Usually requires a higher initial investment because of the membrane filter plates and additional squeezing system.
    Maintenance A simpler mechanical structure makes operation, inspection, and routine maintenance easier. Requires additional inspection and maintenance of the membrane plates, squeezing system, and related control components.
    Automation Can be equipped with PLC control, automatic plate shifting, filter cloth washing, cake discharge, and sludge conveying systems. Supports the same automation options, with additional control of the membrane squeezing cycle for more precise dewatering.
    Recommended When Reliability, simple operation, lower capital investment, and stable long-term performance are the main priorities. Lower filter cake moisture is required to reduce downstream drying, transportation, storage, or disposal costs.

    Which Filter Press Is Best for Your Application?

    If your process requires reliable solid-liquid separation, simple operation, easy maintenance, and optimized capital investment, a chamber filter press is often the most practical and cost-effective solution. If your priority is to achieve a drier filter cake, improve dewatering efficiency, and reduce downstream costs for drying, transportation, or disposal, a membrane filter press is usually the better choice.

    Application Areas

    Typical industries and materials:

    • Environmental Sludge Treatment: Used for deep dewatering of municipal and industrial sludge, reducing transportation and landfill costs.
    • Mining and Metallurgy: Used for deep dewatering of tailings and concentrates, improving mineral recovery rates.
    • Chemical Industry: Used for recovering high-value products or catalysts, improving product purity.
    • Food & Pharmaceutical: Used for high-standard sanitary solid-liquid separation processes.
    • Building Materials & Ceramics: Used for slurry dewatering, improving forming efficiency.

    Selection Notes (Limitations)

    • Higher Initial Investment: Membrane filter presses require higher upfront investment due to the specialized membrane plates.
    • Additional Energy Requirement: Secondary squeezing requires compressed air or high-pressure water supply.
    • System Complexity: Control systems are more advanced compared to standard plate filter presses.

    Frequently Asked Questions About Membrane Filter Presses:

    1. How does a membrane filter press work?

    The filtration cycle typically involves plate closing, slurry feeding, filtration, membrane squeezing, pressure release, plate opening, and filter cake discharge. During filtration, solid particles are retained within the filter chambers, while the filtrate passes through the filter cloth. Once the chambers are filled, the membrane plates expand and compress the filter cake to further reduce its moisture content.

    2. What is the difference between a membrane filter press and a chamber filter press?

    A chamber filter press primarily relies on feed pressure to dewater the slurry, whereas a membrane filter press includes an additional squeezing stage after the chambers are filled. Membrane filter presses are generally preferred when lower cake moisture, shorter filtration cycles, or higher throughput are required, or when processing materials that are difficult to dewater. Chamber filter presses are often a more cost-effective option for standard filtration applications.

    3. Can a membrane filter press be used for dewatering in the mining industry and for tailings processing?

    Yes. Membrane filter presses are widely used in the mining and mineral processing industries for dewatering tailings and filtering concentrates.Typical materials include gold tailings, copper concentrates, iron ore tailings, zinc concentrates, coal slurry, kaolin, and other mineral slurries. The system can be customized based on particle size, slurry concentration, required throughput, and target cake moisture content.

    4. How do I choose the right size membrane filter press?

    The selection should be based on the material to be filtered, slurry volume, solids concentration, required throughput, target cake moisture content, filtration cycle, operating hours, and available installation space. Filtration area and chamber volume are particularly important. Providing these process parameters allows our engineers to recommend the appropriate filter press model and configuration.

    5. Can a membrane filter press operate automatically?

    Yes. Membrane filter presses can be supplied with various levels of automation. Automated systems can include hydraulic plate closing, automatic pressure regulation, automatic plate shifting, cake discharge, filter cloth washing, drip trays, slurry feed control, and PLC-based control. The level of automation can be tailored to the production process and labor requirements.

    Specification

    Model Area (m²) Plate size (mm) Cake thickness (mm) Filter chamber volume (L) Plate Qty (pcs) Filtration pressure (MPa) Motor Power (Kw) Weight (Kg) Dimensions (L×W×H mm) Foundation Size (mm)
    XAG10/630-U 10 630×630 ≤30 157 17 1 2.2 1765 3295×850×942 2294 490 900 627
    XAG15/630-U 15 235 25 2038 3775×850×942 2774
    XAG20/630-U 20 314 33 2311 4255×850×942 3254
    XAG30/630-U 30 471 49 2858 5215×850×942 4214
    XAMG30/870-U 30 870×870 ≤35 498 23 0.8-4.0 4 3046 3815×1430×1230 2920 700 1270 785
    XAMG40/870-U 40 623 29 3593 4200×1430×1230 3300
    XAMG50/870-U 50 789 37 4057 4715×1430×1230 3820
    XAMG60/870-U 60 955 45 4597 5235×1430×1230 4340
    XAMG70/870-U 70 1121 53 5136 5755×1430×1230 4860
    XAMG80/870-U 80 1287 61 5636 6275×1430×1230 5380
    XAMG50/1000-U 50 1000×1000 776 27 4352 4385×1570×1380 3420 780 1400 870
    XAMG60/1000-U 60 943 33 4480 4885×1570×1380 3850
    XAMG70/1000-U 70 1109 39 5263 5245×1570×1380 4280
    XAMG80/1000-U 80 1275 45 5719 5675×1570×1380 4710
    XAMG100/1000-U 100 1608 57 6555 6525×1570×1380 5560
    XAMG120/1000-U 120 1941 69 7466 7375×1570×1380 6410
    XAMG80/1250-U 80 1250×1250 ≤40 1560 29 5.5 10900 5080×1840×1630 3990 850 1740 995
    XAMG100/1250-U 100 1975 37 11750 5690×1840×1630 4600
    XAMG120/1250-U 120 2391 45 12600 6310×1840×1630 5210
    XAMG150/1250-U 150 2911 55 13620 7070×1840×1630 5980
    XAMG160/1250-U 160 3119 59 14470 7380×1840×1630 6285
    XAMG200/1250-U 200 3847 73 15320 8450×1840×1630 7355
    XAMG240/1250-U 240 4679 89 16170 9670×1840×1630 8580
    XAMG250/1250-U 250 4783 91 17020 9820×1840×1630 8730
    XAMG200/1500-U 200 1500×1500 3809 49 11 26120 7140×2200×1820 5920 1170 1990 1070
    XAMG250/1500-U 250 4723 61 26930 7730×2200×1820 6910
    XAMG300/1500-U 300 5637 73 28160 8200×2200×1820 7900
    XAMG350/1500-U 350 6551 85 29600 10110×2200×1820 9090
    XAMG400/1500-U 400 7618 99 31500 11260×2200×1820 10240
    XAMG450/1500-U 450 8532 111 33400 12250×2200×1820 11230
    XAMG500/1500-U 500 9446 123 33380 13240×2200×1820 12220
    XAMG600/2000-U 600 2000×2000 11901 85 15 48840 11820×2750×2400 10105 1530 2500 1400
    XAMG700/2000-U 700 13838 99 52640 13031×2750×2400 11316
    XAMG800/2000-U 800 15960 113 56440 14242×2750×2400 12537
    XAMG900/2000-U 900 17713 127 60240 15453×2750×2400 13738
    XAMG1000/2000-U 1000 19651 141 64040 16664×2750×2400 14949

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    Product Tags
    Membrane Filter PressHigh Efficiency DewateringSolid Liquid SeparationDeep Cake DewateringIndustrial Filter PressMembrane Press System
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