Industrial Non-contact Online Moisture Detection Device Near-Infrared Principle Pipeline Material Moisture Monitoring Equipment

一、产品概述

Industrial non-contact online moisture detection device, near-infrared principle pipeline material moisture monitoring equipment. This near-infrared online moisture meter is an industrial-grade real-time detection device custom-developed for the commercial concrete industry, mainly used for online monitoring of surface free moisture in aggregates such as manufactured sand, river sand, and crushed stone on conveyor belts in mixing plants. Traditional manual sampling and drying testing methods have long intervals and poor sample representativeness. Minor fluctuations in aggregate moisture content can alter the concrete water-to-binder ratio, causing quality issues such as unstable slump, bleeding and segregation, substandard strength, and pump line blockages. This equipment uses a non-contact optical detection method, allowing rapid moisture measurement while materials are dynamically conveyed on the belt, transmitting moisture content data in real time to the mixing PLC batching system, achieving automatic correction of mixing water and helping commercial concrete enterprises realize intelligent quality control in production.

2. Detection Principle

Industrial non-contact online moisture detection device, near-infrared principle pipeline material moisture monitoring equipment. The device emits near-infrared light in the characteristic absorption band of water molecules to irradiate flowing sand and gravel materials. By collecting reflected spectral signals from the material and combining them with a dedicated aggregate algorithm and temperature compensation model, it performs high-speed calculations to output accurate moisture content values. The entire process requires no sampling and no contact with the material, truly enabling continuous non-destructive testing on the production line.

III. Equipment Composition and Hardware Performance

Industrial non-contact online moisture detection device, near-infrared principle pipeline material moisture monitoring equipment. The complete system consists of a near-infrared moisture probe, on-site control host, automatic air purge dust-proof component, and mounting bracket. The probe's protection rating is adapted to harsh conditions in mixing plants, including high dust, strong vibration, and large temperature differences. It comes with a built-in lens purge device to reduce dust contamination of optical lenses. Supports 420mA、RS485 Modbus Multiple signal outputs, compatible with the vast majority of new and old mixing control systems on the market, enabling rapid integration and installation whether for new plant support or intelligent upgrades of old sites.

IV. Core Product Advantages

1. 24 hour continuous real-time monitoringto eliminate the data lag problem caused by manual testing;
2. data-linked batching system,automatically deducting water to adjust the formulato stabilize the concrete water-to-binder ratio and finished product quality;
3. Supports independent calibration and modeling for various sand and gravel materials, adapting to aggregates from different mining areas and specifications;
4. Optical detection requires no consumables, and later maintenance is simple, reducing long-term usage costs;
5. Full data storage, retaining moisture change curves and production logs, with quality inspection records traceable and exportable;
6. Automatic alarm for abnormal moisture, avoiding in advance the production losses from batch scrap and site returns.

V. Applicable Scenarios

Industrial non-contact online moisture detection device, near-infrared principle pipeline material moisture monitoring equipment, mainly used for aggregate feeding belt in commercial concrete mixing plants, sand and gravel production line discharge monitoring, and moisture content control of dry-mixed mortar raw materials; applicable to commercial mixing plants supporting housing construction, bridges, highways, municipal infrastructure, and suitable for both new intelligent mixing plants and digital upgrades of traditional mixing plants. Laboratory benchtop moisture meters can serve as reference equipment for regular calibration of online probe accuracy.

VI. Application value

Through precise and stable aggregate moisture control, it ensures consistent performance of each batch of concrete, reducing product scrap and engineering quality risks; optimizing cement and admixture consumption, saving raw material costs; reducing the workload of quality inspectors in repeated drying and testing, promoting automation and digital upgrades in mixing plant production, and enhancing the market competitiveness of enterprises.