SKD-18S2 infrared quartz digestion furnace

Infrared quartz digestion furnaceSKD-18S2

How to choose a digestive furnace?

The digestion furnace plays an important role in protein detection. How to choose a suitable digestion furnace?

The indicators of the digestion furnace should pay attention to the following points:

*Effective temperature control is necessary. To enable sample nitrification, temperature is required. If there is a temperature control program for the digestion furnace, it can effectively meet the needs of the sample.

*Good insulation measures are required. If the insulation material is weak, it will inevitably cause temperature instability. A thicker insulation layer for the instrument is necessary for temperature stability. Therefore, the thickness and material of insulation materials are important indicators

*The selection of heating element and heat carrier can be based on the user's needs to choose different heat carriers. Next, we will discuss the selection of heating elements and heat carriers. There are mainly two good ways to heat up now

#Infrared heating relies on thermal radiation to heat the sample. The characteristics are: fast heating, small thermal inertia, and accurate temperature control. Generally used for nitration of samples with high requirements. For example, there are high and fast heating and cooling requirements. Programmed heating allows users to choose a heating curve based on the characteristics of their sample, or to select segmented heating, which is more conducive to the digestion of the sample. Thereby eliminating the phenomenon of sample wall hanging and greatly improving the nitrification efficiency of the sample

#Aluminum ingot heating relies on the aluminum ingot to transfer heat to the sample. Characteristics: Slow heating, large thermal inertia, stable temperature, and good thermal conductivity of aluminum ingots, resulting in good temperature stability between each sample well. Widely used as a heat carrier in digestion furnaces, but it should also be noted that even a thin aluminum ingot cannot maintain a constant temperature. Therefore, when choosing an aluminum ingot digestion furnace, the thickness of the aluminum ingot is also an evaluation indicator.

#Graphite heating relies on the conduction of graphite to the sample volume. Characteristics: Large thermal inertia, slow heating, poor thermal conductivity of graphite (compared to aluminum ingots), resulting in uneven temperature between sample pores, which can easily lead to prolonged nitration time between samples. However, due to the low cost of graphite, graphite digestion furnaces are cheap and have a certain appeal to some low-end users.

In addition, attention should be paid to the protection functions of the digestion furnace: temperature stability and uniform protection, overcurrent, leakage, and short circuit protection.

Infrared quartz digestion furnaceSKD-18S2Brief Introduction

SKD-18S2characteristic

1. The heating element (module) adopts infrared heating, quartz tube radiation, strong acid and alkali resistance, anti explosion, and long service life

2. The temperature and rate of the furnace hole are continuously adjustable, with fast heating speed and no wall hanging

3. The heating area of the digestive tract is large, the temperature difference is small, and the sample digestion is good

4. The instrument has overcurrent protection and leakage protection

5. Adopting dual switches, the power supply and heating element are controlled separately, making it easy to set safety parameters

6. The instrument comes standard with a stainless steel drain cover, which allows harmful gases such as SO2 generated during digestion to be discharged through the drain pipe and suction pump, effectively suppressing the escape of harmful gases

SKD-18S2Detailed Introduction

1. Heating principle of quartz structure

Our company uses pearl milk white quartz tube with electric heating material to provide excellent and reliable far-infrared radiation characteristics for the far-infrared quartz heating element. After being powered on, 97% of the infrared and visible light emitted by the heating material are blocked and absorbed by the milk white tube, causing the temperature of the tube wall to rise and producing silicon oxygen bond molecular vibration radiation far-infrared. This allows 97% of visible and near-infrared light to be converted into far-infrared radiation. Overcoming the drawbacks of using only transparent quartz glass to transmit visible and near-infrared light, effectively converting electrical energy into far-infrared radiation.

2. Characteristics of infrared quartz program-controlled digestion furnace

Far infrared quartz heating element uses milky white quartz tube as the infrared radiation source, without coating, pollution, harmful radiation, good chemical stability, high temperature resistance, diverse shapes, long-term use without deformation, good thermal stability, and feasible heating temperature selection. Long term use of radiation performance does not degrade. And it has a long service life, a reasonable structure, minimal thermal inertia, and is easy to use.

1、 Overview:
SKD-18S2 can be used for nitrification of plants, seeds, feed, food, soil, minerals, etc. in agriculture, forestry, environmental protection, geology, chemical industry, food and other departments, as well as in higher education institutions and research departments

IISKD-18S2 Technical Specifications ：
Model SKD-18S2

*Control mode microcontroller (timed+64th order programmed heating)

*Heating method: infrared heating, quartz radiation
Number of furnace holes: 18 holes
*Temperature control range: Room temperature -680 ℃

Heating rate for 12 minutes (preheating at 400 ℃)
Temperature fluctuation+-1

Double insulation layer of silica wool and air double-layer insulation
Voltage AC220V
*Power 1.6KW

Instrument chassis size: 655 * 340 * 210mm

Digestive tube size: 25 * 300mm

IIISKD-18S2characteristic

1. Eliminate wall hanging phenomenon, controllable temperature, and good sample reducibility.

1. Temperature is controllable and the sample has good reducibility.

2. The heating element (module) adopts infrared heating, quartz tube radiation, strong acid and alkali resistance, anti explosion, long service life, and meets CE standards

3. The furnace hole temperature and heating rate are adjustable, with fast heating speed and no wall hanging

4. The heating area of the digestive tract is large, the temperature difference is small, the sample digestion is good, and the thermal efficiency is high

5. The instrument has overcurrent protection and leakage protection

6. Adopting dual switches, power and heating are separately controlled for easy safety parameter setting and energy conservation.

7. Adopting a new generation of temperature display and control instrument, PID control technology, high temperature control accuracy

8. The instrument is equipped with a stainless steel drain cover as standard, which allows harmful gases such as SO2 generated during digestion to be discharged through the drain cover by a suction pump, effectively suppressing the escape of harmful gases. The digestion tube, digestion rack, and cooling rack are also included.

9. Sample explosion-proof device (optional)

SKD-18S2

Shanghai Jinghe welcomes new and old customers to call us!!!