HCP Series Hydraulic Ceramic Plunger Pump

1. Product Introduction

The HOT HCP Series Hydraulic Ceramic Plunger Pump is designed for filter press feeding, solid-liquid separation and demanding slurry transfer applications. Combining hydraulic drive technology with wear-resistant ceramic plungers, the pump is engineered to provide stable slurry delivery as pressure changes throughout the filter press cycle.

During the initial filling stage, the system can operate at relatively high flow and low pressure. As filtration resistance increases, selected HCP configurations reduce flow while increasing pressure, helping the pump follow the actual operating requirements of the filter press rather than running at a fixed output throughout the entire cycle.

The standard product range covers nominal capacities from approximately 15 to 250 m³/h, with standard pressure ranges up to 2.0 MPa depending on model and configuration. The series is suitable for mineral processing, coal preparation, tailings dewatering, wastewater treatment, chemical processing and other slurry-handling duties.

Typical Mining Applications

· Tailings and concentrate filter press feeding

·  Coal slurry and fine-coal dewatering systems

·  Mineral slurry transfer and process-water treatment

·  Mine wastewater sludge handling and solid-liquid separation

·  Filter press retrofit and pump replacement projects

2. Working Principle

The HOT HCP pump uses a hydraulic power unit to drive one or more ceramic plungers in a reciprocating motion. The pumping cycle consists of alternating suction and discharge strokes controlled by inlet and outlet check valves.

Suction stroke: As the plunger retracts, negative pressure is created inside the pump chamber. The inlet valve opens and slurry is drawn into the chamber.

Discharge stroke: As the plunger moves forward, the inlet valve closes and the outlet valve opens, forcing slurry into the filter press or downstream pipeline.

Pressure adaptation: As the filter chambers fill and system resistance rises, selected HCP configurations automatically adapt flow to the increasing pressure requirement, moving from high-flow filling toward lower-flow, higher-pressure feeding.

Pressure-compensated option: The HOT-HCP-J Series uses a pressure-compensated variable-flow concept in which pump output changes with outlet pressure, making it particularly suitable for filter press feeding cycles.

Recommended figure: Slurry tank → suction valve → ceramic plunger pump → discharge valve → filter press, with a second arrow showing “High Flow / Low Pressure → Lower Flow / Higher Pressure”.

3. Product Features

Wear-Resistant Ceramic Plungers:  Precision-machined alumina ceramic plungers improve resistance to wear and corrosion in abrasive slurry service. The partner technical data states plunger hardness above HRC85 and a surface roughness of approximately 0.4 μm.

Designed for Filter Press Feeding:  The pump is configured around the changing flow and pressure demand of a filter press cycle, from rapid chamber filling to higher-pressure filtration.

Pressure-adaptive Flow Control: Selected models adjust output as system pressure changes, allowing high flow at lower pressure and controlled flow as pressure rises.

Strong Self-priming Capability:  For the B, J and D configurations, the partner technical material indicates a typical self-priming capability of approximately 3-5 m. Actual suction performance depends on slurry density, viscosity, pipe layout and site conditions.

Easy Maintenance: Routine wear components are mainly concentrated around the check-valve and plunger-sealing assemblies, helping simplify inspection and replacement.

Smart Control Option: The HOT-HCP Smart Series can be configured with pressure sensing, communication modules and remote monitoring for operating-status monitoring, alarms and maintenance reminders.

Wide Capacity Range:  Multiple sizes are available from approximately 15 to 250 m³/h, supporting different filter press sizes and plant capacities.

Custom Configuration:  Pump configuration can be adapted to slurry properties, solids concentration, particle size, specific gravity, required pressure, pipeline conditions and filter press specifications.

4. Technical Advantages

Better Matching with Filter Press Cycles: The hydraulic control concept allows the pump to respond to increasing filter press resistance instead of maintaining unnecessary maximum flow throughout the cycle.

Suitable for Abrasive Slurry Service: Ceramic plungers provide a wear-resistant pumping interface for mineral slurries, coal slurry, tailings and sludge handling applications.

Energy-Conscious Hydraulic Design: The J Series uses a pressure-compensated hydraulic circuit designed to adjust flow with feeding pressure and reduce unnecessary hydraulic losses.

Stable Continuous Operation: Dual-cylinder and multi-column structural configurations are intended to provide stable operation in demanding process environments.

Large-Capacity Option: The D Series uses a dual-inlet, dual-outlet, large-bore dual-cylinder hydraulic arrangement for higher-capacity slurry transfer duties.

Retrofit Flexibility: The series can be selected for new filter press systems or evaluated as a replacement option in existing slurry-feeding installations, subject to dimensional and hydraulic checks.

5. Product Series Overview

6. Selection Parameters

The following values are standard reference data adapted from the partner technical brochure. Final selection should be confirmed against actual slurry and filter press operating conditions.

6.1 HOT-HCP Smart Series

6.2 HOT-HCP-B Series

6.3 HOT-HCP-J Series

6.4 HOT-HCP-D Dual Inlet & Dual Outlet Series

7. Application Cases