Multifunctional Pneumatic Conveyor Operation and Maintenance Guide

ZhengZhou TianQi Machinery Co., Ltd.

2026-10-29

Operating Instructions

ZhengZhou TianQi Machinery’s guide to operating and maintaining multifunctional pneumatic conveying systems, with practical direction on pressure, temperature, feeding, blockage prevention, cleaning, inspection, and fault response.

Multifunctional pneumatic conveying system for powder and granular material transport with pressure, temperature, and feeding control

A pneumatic conveying system transports powder and granular materials through enclosed pipelines by using controlled airflow. ZhengZhou TianQi Machinery provides configurable systems for horizontal, vertical, and inclined conveying, with optional heating, cooling, drying, and classification functions. Correct operation and planned maintenance help maintain stable feeding, reduce blockage risks, and protect the conveying line from unnecessary wear.

Operating Principles for Stable Conveying

The conveying result depends on the coordination of several operating factors rather than on pressure alone. Before adjustment, operators should consider the material characteristics, pipeline direction, conveying distance, feeding rate, and the selected pressure mode.

Pressure and airflow: Select the appropriate low-, medium-, or high-pressure configuration according to the equipment design and material behavior.
Feeding coordination: Keep the feeding rate consistent with the available conveying airflow to avoid overloading or unstable material movement.
Process modules: Operate heating, cooling, drying, or classification modules only when they are included in the configured system and required by the application.
Pipeline route: Check the complete horizontal, vertical, or inclined route so that changes in direction do not create avoidable accumulation points.

Startup Checks Before Each Operation

A short pre-start inspection can identify conditions that may affect pressure stability, material flow, or system cleanliness. The following checks should be adapted to the actual equipment configuration and site procedures.

Inspection area	What to confirm
Pipeline and connections	Check that pipeline sections, bends, access points, and connections are correctly installed and show no visible damage or leakage.
Feeding equipment	Confirm that the feed inlet is clear and that the selected feed rate matches the planned conveying condition.
Air source and pressure	Verify that the air source, pressure mode, valves, and control components are ready for the configured system.
Process modules	If heating, cooling, drying, or classification is installed, confirm that the relevant module is clean, connected, and set for the material requirement.
Safety and cleanliness	Remove foreign objects from accessible areas, confirm that protective measures are in place, and ensure that operators understand the startup sequence.

Recommended Operating Sequence

Confirm readiness: Complete the pipeline, feeding, air-source, and process-module checks before introducing material.
Establish conveying airflow: Start the configured air supply and verify that the system responds normally before increasing the feed.
Introduce material gradually: Adjust feeding in a controlled manner while observing pressure, airflow, material movement, and any abnormal vibration or noise.
Coordinate process functions: When applicable, coordinate heating, cooling, drying, or classification with the conveying condition instead of changing several settings without observation.
Record unusual conditions: Note changes in pressure, throughput, material behavior, or discharge quality so that maintenance personnel can trace developing problems.

Pressure, Feeding, and Blockage Prevention

Blockage prevention requires coordinated control of pressure, airflow, and feeding. A sudden increase in feed rate may exceed the conveying capacity of the configured line, while insufficient airflow may allow material to settle in horizontal, vertical, or inclined sections.

Avoid making large pressure or feeding changes without checking the response of the entire system.
If conveying becomes unstable, reduce the material feed in accordance with the site procedure and inspect for accumulation or restricted flow.
Pay particular attention to bends, transitions, inlet areas, discharge points, and sections where material properties may change.
Do not attempt to clear a suspected blockage by opening a connection or entering a conveying area before the system has been safely isolated and depressurized.

Shutdown, Cleaning, and Inspection

A controlled shutdown helps limit residual material and makes the next startup more predictable. The exact sequence should follow the equipment configuration and the operating instructions supplied for the installation.

Controlled emptying

Allow the conveying line to clear as required before stopping the air supply or associated equipment.

Cleaning

Remove accessible residual material and keep process-contact areas clean, especially where powder can accumulate or absorb moisture.

Visual inspection

Inspect connections, supports, valves, feeding points, and accessible pipeline sections for wear, leakage, looseness, or abnormal deposits.

Common Conditions and Initial Responses

Observed condition	Items to check
Reduced or interrupted conveying	Check feed continuity, air supply, pressure condition, pipeline restrictions, and possible accumulation at bends or transitions.
Unstable pressure or airflow	Review valve status, connections, air-source stability, feeding changes, and any visible leakage.
Material buildup	Inspect moisture-sensitive areas, low-flow sections, inlet points, and process modules that may require cleaning or adjustment.
Abnormal noise or vibration	Stop or isolate the system according to site safety procedures and inspect supports, connections, moving components, and possible foreign objects.

Maintenance Planning and Technical Support

Maintenance intervals should be determined by the system configuration, material properties, operating load, conveying route, and site conditions. Operators should retain records of inspections, cleaning, pressure changes, blockage events, and replaced components. These records support more accurate fault analysis and help identify recurring operating conditions.

ZhengZhou TianQi Machinery supports customized pneumatic conveying solutions for mining, chemical, food, building-material, and related bulk-material applications. With strict quality control, professional customization, and responsive after-sales support, TianQi can assist customers in reviewing operating conditions, identifying maintenance priorities, and confirming equipment-specific parameters before adjustment. The stated service commitment includes a 2-hour technical response and a 98% on-time delivery rate; actual operating parameters and maintenance requirements should always be confirmed for the specific system and installation site.

Important: This guide provides general operating and maintenance direction for multifunctional pneumatic conveying systems. Isolation, depressurization, cleaning, and fault handling must follow the equipment documentation, applicable safety requirements, and the procedures established for the operating site.