Microwave Digestion Instrument

I. Instrument Introduction

The microwave digestion instrument is a high-throughput, intelligent sample pre-treatment device specially designed for modern laboratories. The instrument adopts a high-performance industrial-grade magnetron and intelligent temperature control technology, together with a comprehensive multi-layer safety protection system, ensuring a safe and controllable experimental process. The device has high-throughput sample processing capability; combined with 360° unidirectional continuous rotation technology, it guarantees the uniformity and repeatability of sample processing within a batch. The control system uses non-contact infrared precise temperature control, and through a large-size touch screen the whole temperature curve can be intuitively monitored, making operation intelligent and simple.

The whole machine adopts a corrosion-resistant chamber and high-quality PEEK/PTFE digestion vessel components, with a sturdy and durable structure. With its reliable core performance, comprehensive safety guarantee, efficient batch processing capability and friendly intelligent operation, this instrument has become an ideal choice for efficient and safe sample digestion in food, environmental, geological, metallurgical and other industries.

II. Instrument Principle

The microwave digestion instrument works on the principle of combining microwave volumetric heating with high-pressure chemical reactions. Microwaves emitted by the core magnetron are absorbed by polar molecules (such as water and acid) in the digestion vessel, causing high-speed molecular oscillation and friction, achieving rapid and uniform heating from inside the sample and greatly shortening the pre-treatment time.

To ensure precise and controllable process, the instrument adopts non-contact infrared temperature sensing technology to monitor the temperature changes of each reaction vessel throughout the process. The unique 360° unidirectional continuous rotation design ensures uniform heating of all samples and good consistency of results. The system has built-in multiple safety mechanisms; once abnormal temperature or pressure is detected, microwave emission is immediately stopped automatically and pressure relief protection is activated, achieving a unification of efficiency and safety.

III. Instrument Features

1. Stable and reliable core performance and durable design

(1) High-performance magnetron system: adopts an industrial-grade high-performance magnetron, combined with intelligent power adjustment, realizing 0 ~ 1800 W non-pulse continuous variable-frequency output. The system is simple in structure, stable and reliable in operation, with high energy conversion efficiency and more advantageous maintenance cost.

(2) High-quality digestion vessel components: the inner vessel is made of strong corrosion-resistant polytetrafluoroethylene (PTFE), and the outer sleeve is made of ultra-high-strength PEEK aerospace engineering plastic, providing a safe working pressure of up to 1500 psi (about 10 MPa) with excellent durability.

(3) Sturdy and corrosion-resistant chamber: high-quality stainless steel microwave chamber, coated with multiple layers of Teflon anti-corrosion coating on the inside, resisting acid gas corrosion, easy to clean, and ensuring long-term durability of the equipment.

2. Comprehensive active intelligent safety protection system

(1) Dual pressure relief safety guarantee: each digestion vessel is equipped with an independent pressure relief device, and the main unit has an automatic over-pressure release function, forming dual protection of vessel and system with high safety redundancy.

(2) Self-locking buffer explosion-proof furnace door: adopts a high-strength self-locking buffer furnace door, which can effectively release impact in case of abnormal pressure; combined with electromagnetic induction interlocking, it ensures personal and equipment safety.

(3) Real-time monitoring and automatic stop on abnormality: the temperature control system monitors throughout the process, and automatically cuts off microwaves when parameters exceed limits, achieving active safety intervention.

3. High-throughput, high-consistency efficient processing platform

(1) Maximum 24-position high-throughput design: up to 24 samples can be processed in a single batch, significantly improving the efficiency of large-batch sample processing in the laboratory.

(2) 360° unidirectional continuous rotation: the turntable rotates continuously in one direction (not reciprocating), ensuring an absolutely uniform microwave environment at each sample position and fundamentally guaranteeing excellent repeatability and parallelism of sample processing within a batch.

(3) Efficient and rapid cooling: built-in high-power corrosion-resistant exhaust system; after digestion, rapid air cooling can be started to accelerate the cooling process and shorten the experimental cycle.

4. Precise and intelligent control and operating system

(1) Intelligent non-contact temperature control: adopts high-precision non-contact infrared temperature measurement, directly monitoring the real temperature inside the vessel, with precise temperature control (± 0.5 ℃), no pollution and no consumables, and with true and reliable data.

(2) Flexible method library: supports users to create their own digestion methods, easily coping with standardized or customized pre-treatment processes for multiple samples.

(3) Intuitive human-machine interaction: large-size color touch screen with a graphical interface, synchronously displaying the temperature and pressure curves inside the vessel in real time, intuitive operation and a clear process at a glance.

(4) Multi-language support: optional Android version, which can realize multi-language customization.

IV. Technical Parameters

1. Main Unit Technical Parameters

2. Control System Parameters

3. Digestion Device Parameters