Continuous Pusher Centrifuge for Chemical Crystal Dewatering

Continuous Pusher Centrifuge for Chemical Crystal Dewatering is designed for continuous solid-liquid separation of chemical crystals, crystalline slurry, and crystallizer discharge slurry in chemical production lines.

In many chemical processes, crystals are formed through cooling crystallization, evaporation crystallization, reaction crystallization, or concentration. These crystals often carry mother liquor, soluble impurities, or process liquid after crystallization.

A pusher centrifuge removes free liquid through centrifugal filtration and continuously discharges the dewatered crystal cake before drying, cooling, screening, or packaging.

• Chemical crystal dewatering
• Crystallizer discharge slurry separation
• Mother liquor separation from chemical crystals
• Chemical product cake washing and dewatering
• Inorganic chemical crystal separation
• Fertilizer crystal dewatering
• Salt-type chemical crystal dewatering
• Reaction crystallization product separation
• Evaporation crystallization product dewatering
• Chemical wet cake discharge before drying

The actual separation result depends on crystal size distribution, crystal shape, slurry concentration, liquid viscosity, screen opening, washing requirement, and operating parameters.

Chemical crystallization products often need stable dewatering before drying or further processing. If liquid carryover is too high, the plant may face:

• High wet cake moisture
• Higher dryer energy consumption
• More mother liquor residue in the product
• Lower product purity after drying
• Unstable dryer feeding
• Product loss in filtrate
• Screen blockage or uneven cake formation
• Higher load on downstream equipment
• Inconsistent product quality

A pusher centrifuge continuously separates mother liquor from chemical crystals. When required, wash liquid can be sprayed onto the crystal cake to reduce soluble impurities or residual mother liquor.

The machine supports continuous feeding, filtration, washing, dewatering, and discharge in chemical production lines.

Centrifugal filtration removes free mother liquor from the crystal cake, helping reduce the load on downstream dryers.

The pusher mechanism moves the cake forward step by step, supporting stable and continuous solids discharge.

Wash liquid can be added during cake transport to reduce mother liquor residue, soluble impurities, or surface contaminants.

Proper screen opening and stable cake formation help reduce crystal loss in the filtrate.

The centrifuge can be connected with crystallizers, reactors, evaporators, dryers, coolers, screens, and packaging systems.

Wetted parts and screen segments can be selected according to corrosion, abrasion, crystal size, and process liquid composition.

Under suitable feed and operating conditions, the system can typically help achieve:

• 3–12% wet cake moisture for many free-draining chemical crystals
• 50–85% reduction in free liquid carryover before drying compared with untreated wet slurry.
• 95–99.5% solid crystal recovery
• 30–70% reduction of residual mother liquor in the cake when an effective cake washing system is used.
• 15–40% reduction in downstream dryer load
• More stable wet cake discharge before dryer, cooler, screening machine, or packaging section.
• 8–24 hours/day continuous operation

Final performance depends on crystal size, particle shape, slurry concentration, liquid viscosity, screen opening, centrifugal force, washing condition, corrosion level, and operating parameters.

To recommend a suitable pusher centrifuge for chemical crystal dewatering, please provide:

• Chemical material name
• Processing capacity
• Feed slurry concentration
• Solids content
• Crystal size distribution
• Crystal shape
• Mother liquor composition
• Liquid viscosity
• Feed temperature
• pH value
• Corrosion condition
• Abrasion condition
• Target cake moisture
• Product washing requirement
• Required product purity
• Filtrate reuse or treatment requirement
• Upstream process: crystallizer, reactor, evaporator, or washing tank
• Downstream process: dryer, cooler, screen, or packaging
• Required operating hours per day
• Site voltage and control preference
• Preferred material of construction
• Required screen slot size, if known
• Special safety requirement, if any

If you have customer resources or project opportunities in chemical crystal dewatering, crystallization product separation, inorganic chemical production, fertilizer crystal separation, or solid-liquid separation systems, Peony welcomes cooperation.

We support distributors, agents, and project partners with model selection, process advice, customized configuration, equipment manufacturing, installation guidance, spare parts, screen segment customization, and after-sales service.

Send us your material name, capacity, crystal size, solids content, mother liquor composition, and target cake moisture. Our team will help evaluate the suitable chemical crystal dewatering solution.