Papua New Guinea CL-X New-Type Flour Mill

The CL‑X1920 new‑type pulverizer is a cutting‑edge mill developed by our company, incorporating advanced structural technologies from German pulverizers.

The new-type pulverizer consists of a main unit (grinding), a classifier, a fan, a pipeline conveying system, a powder‑product collection system, and an automatic control system.

Working principle:

After the material is fed into the storage hopper, a feeder delivers it to the main mill in measured, uniform quantities for grinding. The ground powder is carried by a high‑pressure, high‑flow air stream generated by the fan into the classifier located at the top of the main mill for particle size classification. Particles that fail to meet the target fineness are recirculated back to the main mill for further grinding, while those that satisfy the specification are conveyed with the airflow into a cyclone collector for collection. Once collected, the finished powder is discharged via a screw conveyor for packaging. The purified exhaust gas flows through the cyclone collector’s ductwork back to the fan, and any leakage from the system is vented through a bypass duct between the fan and the main mill before being routed to a pulse‑jet baghouse dust collector and then released to the atmosphere. The entire pneumatic conveying system operates as a closed loop, ensuring environmental compliance within the workshop.

Technical Advantages and Features:
1. Low vibration, high reliability:
(1) Unique integrated base structure for host vibration isolation: minimal host vibration and smooth operation.
(2) A new maintenance-free grinding roller assembly featuring “axial plus radial” sealing: high sealing reliability and a lubrication interval extended fivefold.
(3) The two ends of the cross‑beam shaft of the roller assembly are fitted with a new type of sealed wear‑resistant sleeve, replacing the conventional rubber sleeve. This design offers superior reliability, extends service life by more than tenfold, and effectively ensures smooth operation of the roller assembly while reducing vibration in the main machine.
(4) New-type sealing structure for the main unit: the central shaft is permanently wear-free.
(5) The main unit housing and the base adopt a flexible connection structure: the main unit housing will never crack.

2. High yield:
(1) New‑structure roller assembly: Grinding force is increased by 20% compared with conventional designs, significantly boosting production output.
(2) Novel scraper device: Featuring a unique structure, it ensures more uniform material distribution and concentrated grinding between the grinding roller and grinding ring, maintaining stable, high grinding efficiency.
(3) Compared with conventional domestic pendulum-type mills of the same specifications (Raymond mills), output is increased by more than 10%, while energy consumption is reduced by over 6%.

3. Easy maintenance:
(1) Innovative plum‑blossom frame design: The inner diameter of the grinding ring is larger than the outer diameter of the plum‑blossom frame, allowing replacement of the wear‑prone grinding ring without dismantling the main unit’s plum‑blossom frame or other components. This ensures convenience, speed, reduced labor intensity, and time savings.
(2) New sealing‑element design at the bottom of the main unit: Replacing the seal does not require dismantling internal components such as the star‑shaped frame or the grinding‑roller assembly; simply remove the reducer and access the seal directly from beneath the main unit, making replacement quick and convenient.
(3) The split‑type rotating main housing cylinder and the sliding structure of the classifier: This design allows for easy maintenance of internal components by quickly removing both the classifier and the main housing cylinder, eliminating the need for lifting equipment. It is convenient, fast, reduces labor intensity, and saves time.
(4) The classifier and the main machine are connected via a hinged, clamping structure, facilitating disassembly.
(5) Easy to maintain and repair, saving time and reducing labor intensity; maintenance time is only one-quarter of that required for conventional designs.

4. Intelligent Control:
The mill’s operational functions are equipped with automatic interlock protection, PLC-based one‑button start/stop control, and DCS centralized control.
Application scope: Suitable for the pulverization and processing of non‑metallic minerals with a Mohs hardness of 6 or lower and a moisture content of 6% or less, provided they are non‑flammable and non‑explosive. Examples include barite, calcite, marble, feldspar, limestone, dolomite, wollastonite, talc, gypsum, high‑alumina clay, bentonite, manganese ore, and similar materials.

Scope of application:

It is suitable for the pulverization and processing of non‑metallic minerals with a Mohs hardness of 6 or lower and a moisture content of 6% or less, provided they are non‑flammable and non‑explosive—such as barite, calcite, marble, feldspar, limestone, dolomite, wollastonite, talc, gypsum, high‑alumina clay, bentonite, manganese ore, and similar materials.

Technical specifications: