Cast iron filter press with heated filter plates

Description

Cast iron filter presses are primarily used in harsh industrial environments that demand high strength, corrosion resistance, high-temperature tolerance, and long-term stable operation. They are typically not the first choice for processing ordinary materials but serve as critical equipment in specific working conditions where alternatives are inadequate.

Cast Iron Filter Plate

Cast Iron Filter Plate(Heated)

Aluminum Alloy Filter Plate

Product Features

• Exceptional Mechanical Strength and Pressure Resistance: Cast iron components are extremely robust, capable of withstanding high working pressures (typically up to 25-30 bar or even higher). This is essential for dewatering dense, difficult-to-filter materials that require high pressure.
• Excellent Corrosion Resistance: Compared to ordinary carbon steel, cast iron (especially high-quality grey cast iron or ductile iron) offers superior resistance to many chemicals, particularly alkaline substances and certain salts, resulting in a longer service life.
• Good Heat Resistance: Cast iron can endure relatively high temperatures, making it suitable for processes requiring high-temperature drying of filter cakes (e.g., using high-temperature steam or hot air).
• High Wear Resistance: For materials containing hard, sharp particles, cast iron filter plates are more resistant to wear and scratching than polymer polypropylene (PP) filter plates.
• Stable Structure, Resistant to Deformation: Under long-term high-pressure and thermal cycling conditions, cast iron filter plates maintain their shape stability, ensuring sealing performance and preventing slurry leakage

Specification

Cast Iron Filter Press (Plate & Frame Type)
Model	Filter area	Plate size	Volume	Plate NO.	Frame NO.	Filtration pressure	Weight	Dimensions
BQ1/320-25	1m²	380 × 380mm	13L	4pcs	5pcs	0.6Mpa	380Kg	1150 × 760 × 650mm
BQ2/320-25	2m²		25L	9pcs	10pcs		500Kg	1390 × 760 × 650mm
BQ3/320-25	3m²		38L	14pcs	15pcs		620Kg	1750 × 760 × 650mm
BQ4/450-25	4m²	500 × 500mm	51L	9pcs	10pcs	0.6Mpa	1060Kg	1780 × 870 × 880mm
BQ6/450-25	6m²		76L	14pcs	15pcs		1160Kg	2055 × 870 × 880mm
BQ-8/450-25	8m²		102L	19pcs	20pcs		1360Kg	2305 × 870 × 880mm
BQ12/450-25	12m²		152L	29pcs	30pcs		1530Kg	2785 × 870 × 880mm
BQ16/450-25	16m²		203L	39pcs	40pcs		1760Kg	3305 × 870 × 880mm
BQ20/630-25	20m²	700 × 700mm	298L	24pcs	25pcs	0.6Mpa	3300Kg	2750 × 1150 × 1100mm
BQ30/630-25	30m²		452L	37pcs	38pcs		4500Kg	3220 × 1150 × 1100mm
BQ40/630-25	40m²		496L	49pcs	50pcs		5600Kg	3870 × 1150 × 1100mm
BY20/630-25	20m²		298L	24pcs	25pcs		3700Kg	2960 × 1150 × 1100mm
BY30/630-25	30m²		452L	37pcs	38pcs		5000Kg	3610 × 1150 × 1100mm
BY40/630-25	40m²		595L	49pcs	50pcs		6100Kg	4210 × 1150 × 1100mm
BY40/870-25	40m²	800 × 800mm	496L	30pcs	31pcs	0.6MPa	6400Kg	3550 × 1380 × 1300mm
BY50/870-25	50m²		624L	38pcs	39pcs		7650Kg	3970 × 1380 × 1300mm
BY60/870-25	60m²		752L	46pcs	47pcs		8900Kg	4420 × 1380 × 1300mm
BY70/870-25	70m²		880L	54pcs	55pcs		10500Kg	4870 × 1380 × 1300mm
BY80/870-25	80m²		1008L	62pcs	63pcs		11800Kg	5320 × 1380 × 1300mm

Cast Iron Filter Press (Chamber Plate)
Model	Filter area	Plate size	Volume	Plate NO.	Filtration pressure	Weight	Dimensions
XQ4/450-25	4m²	500 × 500mm	51L	9pcs	0.6MPa	960Kg	1900 × 870 × 880mm
XQ6/450-25	6m²		76L	14pcs		1140Kg	2030 × 870 × 880mm
XQ8/450-25	8m²		102L	19pcs		1460Kg	2280 × 870 × 880mm
XQ12/450-25	12m²		152L	29pcs		1960Kg	2780 × 870 × 880mm
XQ16/450-25	16m²		203L	39pcs		2460Kg	3280 × 870 × 880mm
XQ20/630-25	20m²	700 × 700mm	248L	24pcs	0.6MPa	3400Kg	2600 × 1100 × 1100mm
XQ30/630-25	30m²		377L	37pcs		4700Kg	3250 × 1100 × 1100mm
XQ40/630-25	40m²		496L	49pcs		5900Kg	3900 × 1100 × 1100mm
XY20/630-25	20m²		248L	24pcs		3800Kg	2950 × 1100 × 1100mm
XY30/630-25	30m²		377L	37pcs		5200Kg	3580 × 1100 × 1100mm
XY40/630-25	40m²		496L	49pcs		6400Kg	4180 × 1100 × 1100mm
XY40/870-30	40m²	800 × 800mm	595L	30pcs	0.6MPa	6750Kg	3500 × 1380 × 1300mm
XY50/870-30	50m²		749L	38pcs		8100Kg	3720 × 1380 × 1300mm
XY60/870-30	60m²		902L	46pcs		9400Kg	3950 × 1380 × 1300mm
XY70/870-30	70m²		1056L	54pcs		11100Kg	4180 × 1380 × 1300mm
XY80/870-30	80m²		1210L	62pcs		12500Kg	4400 × 1380 × 1300mm

Automatic Cast Iron Filter Press (Chamber Plate)
Model	Filter area	Plate size	Volume	Plate NO.	Filtration pressure	Weight	Dimensions
XZ50/870-30	50m²	800 × 800mm	730L	38pcs	0.6MPa	9000Kg	4170 × 1300 × 1300mm
XZ60/870-30	60m²		883L	46pcs		10800Kg	4560 × 1300 × 1300mm
XZ70/870-30	70m²		1036L	54pcs		12000Kg	4960 × 1300 × 1300mm
XZ80/1000-30	80m²	930 × 930mm	1194L	45pcs	0.6MPa	13800Kg	4775 × 1400 × 1400mm
XZ90/1000-30	90m²		1323L	51pcs		15500Kg	5245 × 1400 × 1400mm
XZ100/1000-30	100m²		1479L	57pcs		16800Kg	5915 × 1400 × 1400mm
XZ80/1200-30	80m²	1130 × 1130mm	1226L	31pcs	0.6MPa	17600Kg	4100 × 1620 × 1520mm
XZ90/1200-30	90m²		1379L	35pcs		18800Kg	4340 × 1620 × 1520mm
XZ100/1200-30	100m²		1532L	39pcs		20800Kg	4580 × 1620 × 1520mm
XZ120/1200-30	120m²		1838L	47pcs		23500Kg	5060 × 1620 × 1520mm
XZ150/1200-30	150m²		2300L	59pcs		27500Kg	5780 × 1620 × 1520mm
XZ180/1200-30	180m²		2758L	71pcs		31500Kg	6500 × 1620 × 1520mm

Main Application Scenarios and Suitable Materials

1.Chemical Industry

This is the most traditional application field for cast iron filter presses. Many materials in chemical production are highly corrosive or require high-temperature filtration.

Typical Materials:

• Strong Alkalis: Such as sodium hydroxide (caustic soda), calcium hydroxide, etc. Alkaline substances are highly corrosive to PP filter plates, but cast iron offers excellent resistance.
• Salts: Such as sodium chloride, sodium sulfate, phosphates, etc. These materials may form hard, sharp particles during crystallization, combining corrosion and abrasiveness.
• Dyes and Pigments: Such as titanium dioxide, iron red, various organic and inorganic pigments. These materials feature fine, viscous particles and high value, requiring high-pressure dewatering for thorough recovery.
• Intermediates and Pesticides: Many chemical intermediates and pesticide products generate corrosive filter residues during production.
• High-Temperature Processes: Chemical products requiring steam injection for filter cake heating and drying.

2.Metallurgical and Mining Industry

Mineral processing and smelting processes generate large amounts of tailings, mineral powders, and metal slags, which are typically highly abrasive.

Typical Materials:

• Metal Tailings: Such as iron tailings, copper tailings, lead-zinc tailings, etc. Tailings particles are hard and cause significant wear to equipment.
• Concentrate Dewatering: Metal concentrates (e.g., copper concentrate, zinc concentrate) after flotation require efficient dewatering for transportation and smelting.
• Smelting Slags: Such as red mud (waste residue from alumina plants), steel slag, etc. These materials may have extremely high pH values (red mud is highly alkaline) and contain hard particles.
• Coal Powder: Dewatering of coal water slurry, coal slime from coal washing plants, etc., involving large processing volumes and harsh environments.

3.Environmental Protection Industry (Industrial Wastewater Treatment)

Sludge from industrial wastewater treatment has complex compositions and is often more challenging than municipal sludge.

Typical Materials:

• Hazardous Industrial Sludge: Sludge from electroplating, electronics, surface treatment, and other industries, often containing heavy metals, strong acids, strong alkalis, and other corrosive components.
• Sludge Containing Chemicals: Sludge from petroleum chemical, pesticide, pharmaceutical, and other industries, which may contain solvents and residual chemicals.
• High-Hardness Sludge: Sludge with high inorganic content and hard particles from certain industries.

4.Other Industries

• Ceramics and Building Materials Industry: Used for processing highly abrasive materials such as kaolin, ceramic glazes, and quartz sand.
• Food Industry (Specific Segments): Examples include glutamic acid fermentation broth in monosodium glutamate production and calcium citrate. Although stainless steel is predominantly preferred for food-grade applications, cast iron filter presses are also utilized in certain segments where hygiene requirements are not extremely stringent and high pressure is necessary.

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