Vacuum Belt Filter

The horizontal rubber belt and track belt vacuum filter is an efficient, energy-saving new solid-liquid separation device. Its unique structure and working principle deliver high filtration efficiency, low energy and washing water consumption, thorough cake washing, simple configuration, stable operation, low noise, and long filter cloth lifespan. It is widely used in solid-liquid separation across chemical, metallurgical, fertilizer, food, building materials, and wastewater treatment industries.

YINUO provides customized process design to meet users’ solid-liquid separation needs for various materials.

PRICE: $7661 – $90545/SET

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vacuum belt filter Specifications

As a horizontal vacuum belt filter manufacturer, YINUO provides standard models, supporting auxiliary equipment, and custom solutions—including tailored process design—to meet users’ diverse solid-liquid separation needs for different materials.

TypeBelt width
(mm)		Filter area
(m²)​		Vacuum
(Mpa)		Vacuum consumption
(m³/min)​		Main motor power
(kw)		Dimensions
(m)		Total weight
(kg)
GDJL630/2.5​630​2.5​0.06​3–5​3​7.2×1.3×1.5​3800​
GDJL630/5​630​5​0.06​6–10​4​11.2×1.3×1.5​4200​
GDJL630/10​630​10​0.06​13–20​5.5​19×1.3×1.5​6000​
GDJL1250/5​1250​5​0.06​6–10​4​7.5×1.95×1.9​12000​
GDJL1250/10​1250​10​0.06​13–20​5.5​11.8×1.95×1.9​13000​
GDJL1250/15​1250​15​0.06​19–30​7.5​15.8×1.95×1.9​14000​
GDJL1250/20​1250​20​0.06​25–40​7.5​20×1.95×1.9​15000​
GDJL1350/15​1350​15​0.06​19–30​7.5​15×2.05×1.9​14000​
GDJL1350/20​1350​20​0.06​25–40​7.5​18.7×2.05×1.9​15000​
GDJL1350/25​1350​25​0.06​32–50​11​22.4×2.05×1.9​16000​
GDJL1600/20​1600​20​0.06​25–40​7.5​16.3×2.3×1.9​143000​
GDJL1600/25​1600​25​0.06​32–50​11​19.5×2.3×1.9​153000​
GDJL1600/30​1600​30​0.06​36–58​11​22.5×2.3×1.9​163000​
GDJL1750/25​1750​25​0.06​32–50​11​18×2.45×1.9​15000​
GDJL1750/30​1750​30​0.06​36–58​11​21×2.45×1.9​15700​
GDJL1750/35​1750​35​0.06​45–65​15​23.8×2.45×1.9​16400​
GDJL1750/40​1750​40​0.06​50–75​15​26.5×2.45×1.9​17000​

belt vacuum filters advantages

YINUO horizontal vacuum belt filter offer high-efficiency filtration, excellent washing, flexible adjustment, optimized operation, zoned vacuum control, superior cloth regeneration, custom design and stable performance, meeting diverse filtration needs.

8 key advantages

Thanks to its unique structure, it accommodates an extensive range of materials. In particular, it can easily filter, wash and dewater slurries that vacuum drum filters cannot adsorb—those with large solid particles and high sedimentation rates.

1.Optimal solid-liquid separation can be achieved by adjusting the filter belt speed and cake thickness.
2.The lengths of the filtration, washing, and dewatering sections can be easily adjusted to better align with production process requirements, enhancing adaptability to different materials.

1.The filter belt operates at low speed, with a slow spindle rotation and low power consumption.
2.The vacuum box and filter belt feature good sealing, resulting in minimal air leakage and reduced vacuum pump power requirements.

1.Thanks to the continuous rotational movement of the filter cloth, each rotation completes a working cycle of filtration, washing, dehydration, and cloth regeneration. This ensures the filter cloth remains fresh and operates without clogging, allowing the machine to run continuously for extended periods without reducing filtration capacity.
2.The filter cake layer has a uniform thickness and can be easily adjusted, keeping the solid-liquid separation process in optimal operating condition at all times.
3.For materials with poor filterability and high viscosity, it enables thin-layer rapid filtration.

1.Materials are continuously fed from the front end, with filter cakes discharged continuously from the rear end.
2.Filtrate is continuously discharged from the gas-liquid separator into a filtrate storage tank or the next process step.
3.Washing water can either be combined with the filtrate or discharged separately.
4.No dedicated operator is required, significantly reducing operational costs while greatly improving productivity.

1.The filter belt is made of corrosion-resistant materials (such as rubber, polyvinyl chloride, and stainless steel), ensuring excellent corrosion resistance.
2.The vacuum box and gas-liquid separator can be constructed from stainless steel, titanium, or non-metallic materials, making them suitable for handling various corrosive substances.

For multiple units, the DCS (Distributed Control System) provides centralized management to coordinate synchronized production line operation. It also includes historical data logging and trend analysis features, facilitating performance tracking, problem identification, and process optimization. This reduces manual intervention while improving operational accuracy and process stability.

1.One or more washing zones can be configured based on material properties and process requirements.
2.Countercurrent or cocurrent washing operations can be adopted to minimize water usage and maximize separation efficiency.
3.Depending on process needs, either cold or hot water can be used for washing to ensure optimal cleaning results.

how does a horizontal vacuum belt filter work

Filtration Stage

The filter slurry is evenly distributed onto the horizontally moving filter cloth from the driven roller end via a dedicated distributor, with coarse solid particles naturally settling on the filter cloth surface. Under the negative pressure of the vacuum box, the filtrate passes through the filter cloth into the vacuum box, then flows through pipes to the gas-liquid separator. The filtrate is discharged, while non-condensable gases (mainly air) enter the vacuum pump through the gas outlet of the gas-liquid separator and are finally exhausted into the atmosphere.

Washing Stage

The filter belt moves horizontally into the washing section, where washing water is evenly sprayed onto the top of the filter cake. Driven by the negative pressure in the vacuum box, the water passes through the filter cake and filter cloth into the vacuum box, then flows through pipes to the washing liquid gas-liquid separator, from which the washing liquid is discharged. For reverse washing, the washing liquid is pumped to the top of the filter cake for re-spraying. Additionally, the number and position of partitions in the vacuum box can be adjusted to flexibly modify the number of washing sections and the length of each section as needed.

Dewatering Stage

The washed filter cake proceeds to the dewatering section, where the final stage of moisture reduction takes place. Leveraging the sustained negative pressure generated within the vacuum box, the residual liquid trapped in the pores and interstices of the filter cake is efficiently drawn through the filter cloth into the vacuum chamber. This continuous suction force acts to thoroughly extract remaining moisture, significantly lowering the liquid content of the filter cake to meet the required dryness standards, ensuring optimal readiness for subsequent handling and processing.

Discharging and Filter Cloth Regeneration Stage

After dewatering, the filter cake travels with the filter belt and cloth to the drive roller, where the cloth separates from the belt. Carrying the cake, the cloth moves to the discharge roller, changes direction to release the cake for discharge, and a scraper removes residual material. The cloth then descends to the regeneration area for high-pressure cleaning (with wash water reusable), moves back under the belt, reattaches at the driven roller, and enters the distribution area to restart the filtration-washing-dewatering cycle.

Typical Application Examples of Horizontal Belt Vacuum Filter

Material NameLiquid – Solid RatioFilter Cake Moisture Content (%)Treatment Capacity (kg/m²·h)  (Based on Filter Slurry)Treatment Capacity (kg/m²·h)  (Based on Dry Filter Cake)
Citric Acid (Fermentation Broth)5:1 – 4:12545090
Citric Acid (Neutralization Solution)8:1 – 6:12073689
Citric Acid (Acid Hydrolysis Solution)5:1 – 3:115891297
Starch Liquefaction Solution4:125715143
Zinc Oxide10:151.2960.587.3
Aluminum Hydroxide4:115 – 172013403
Phosphoric Acid (in Phosphogypsum)2:1 – 3:1201533 – 2300766 – 1150
Magnetite2.5:1 – 4:17.62013 – 5750975 – 1150
Sodium Dichromate (Sodium Red Vanadate)2:1202760 – 5600520 – 1200
Bauxite2.5:1 – 4:111.631450 – 4600414 – 920
Copper Concentrate2.5:1 – 4:1121610 – 3450460 – 690
Total Tailings9:1 – 4:121.41725 – 5750345 – 575
Magnetite2:1 – 1.5:18 – 106900 – 86252300 – 3450
Manganese Ore2:115 – 172760 – 3450920 – 1150
Vanadium Pentoxide3:133800200
Coal Ash10:120.762m35.6m3
Fluorite Powder2:1112760920
Gold Concentrate2:125 – 27384128
Ammonium Paratungstate2:171690230
Azo Organic Dye30:1 – 20:1693650115
Mixed Solution of Caustic Soda and CUS4:119.62390478
ABS Resin10:136 – 382150 – 2937196 – 267
Phosphorite Slurry3.5:121.51787397
Activated Phosphate Fertilizer2:1 – 5:17 – 103450 – 69001150 – 2300
Sulfuric Acid Sludge1.5:137 – 401913 – 2250765 – 900
Bauxite5:1 – 4:126.4 – 2997751955
Digested Sludge4:147 – 511530 – 3525306 – 705
Aluminum Sulfate Residue1.5:137575230
Gentamicin Fermentation Broth1:1 – 2:133.118090.2
Crude Zinc Oxide4:123.51340268
Manganese – Containing Lime4:1 – 5:142 – 511150 – 3220230 – 644
Titanium Ammonium4:118 – 205757 – 86251150 – 1725
Sodium Fluotitanate3:115 – 201380 – 2300345 – 575
Wet – Process Cement2:116 – 202715905
Concentrated Coal, Washed Coal4:122.41250250
Tail Coal Dressing, Washed Coal6:125805115
Zinc Carbonate Slurry5:145 – 502160360
Acid – Leached Slurry of Manganese Oxide Reduction3:145.06407101.7

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