What kinds of coal quality analysis instruments are there?

Coal quality analyzer, also known as coal laboratory instrument, is an instrument and equipment for detecting coal. By providing real-time information, it provides great help for the quality control and production management of various coals in coal plants. There are many kinds of coal quality analysis instruments, such as coal moisture meter, coal calorimeter, coal sulfur meter, coal ignition point meter and coal slagging tester. What should be paid attention to when selecting many coal quality analysis instruments? How to choose coal quality analysis instruments? Let's have a look. 1. What kinds of coal quality analysis instruments are there?

Coal quality analysis instruments include: coal industry analyzer, coal moisture analyzer, coal ash melting point analyzer, coal ash volatilization analyzer, coal hydrogen analyzer, coal calorimeter, coal sulfur analyzer, coal ignition point analyzer, coal slagging tester, coal activity tester and so on. This is the basic equipment used by coal quality analysis instruments.

1, coal industry analyzer

The moisture, ash and volatile substances of samples can be tested simultaneously on one device. So as to analyze high calorific value and low calorific value. Coal quality industrial analysis is mainly applied to coal production and mining, commercial departments and various coal users, such as coking plants, power plants, chemical plants and so on.

2, coal moisture analyzer

Especially suitable for measuring the total moisture of coal, Mt or moisture of air-dried coal samples: Mad (analytical pure water); It can also be used to determine the moisture content of other nonmetallic substances. Coal moisture analyzer is mainly used in all industries that need to measure moisture, such as medicine, grain, sawdust, feed, seeds, oilseeds, rapeseed, dehydrated vegetables, starch, tea, tobacco, chemical industry, coal, graphite, ore, iron powder, soil, food, meat, refractories, textiles, agriculture, forestry, rubber, plastics, paper, dairy and other industries.

3, coal ash melting point tester

Coal ash melting point tester is an instrument for measuring the melting characteristics of coal. The instrument adopts silicon carbon tube as heating element and cooperates with SCR voltage regulator for temperature control. The instrument can be used to measure the carbon dioxide activity of coal and other heat treatments after a little modification. The instrument can be widely used in electric power, coal, cement, metallurgy and other industries.

4. Coal ash volatilization analyzer

Coal ash volatile analyzer is a kind of equipment for determining ash. The instrument has the advantages of rapidity, accuracy and energy saving, and is widely used in laboratories of coal, geology, metallurgy, electric power, chemical industry, foreign trade and other departments.

5, coal hydrogen meter

It is mainly used to determine the hydrogen content in organic and inorganic materials such as coal. It is an important laboratory instrument in coal, electric power, metallurgy and other departments, and is also widely used in chemical industry, commodity inspection and other units.

6, coal hydrogen analyzer

The hydrogen analyzer is suitable for determining the contents of carbon and hydrogen in coal and other organic substances. The measured sample is burned at high temperature in oxygen flow to generate water and carbon dioxide, which are absorbed by water absorbent and carbon dioxide absorbent respectively, and the percentage contents of carbon and hydrogen are calculated according to the weight gain of absorbent. It can be used in laboratories of coal, chemical industry, metallurgy, electric power and geological exploration.

7. Coal calorimeter

It is mainly used to measure the calorific value index of solid combustible materials such as coal, coke and coal gangue, so as to measure the quality of the measured object. Widely used in electric power, coal, metallurgy, petrochemical, quality inspection, environmental protection and other industries, it is the main instrument of coal quality laboratory.

8, coal sulfur detector

Used to determine the total sulfur content in combustible materials such as coal, coke and coal gangue. It is an important instrument for measuring the quality of measured objects in laboratories of coal, electric power, chemical industry, metallurgy and other departments.

9, coal ignition point tester

It is used to measure the ignition temperature of coal. By measuring the ignition temperature of coal, preventive measures can be taken to avoid environmental pollution and economic losses caused by coal spontaneous combustion, which plays an important role in production, scientific research and use departments.

10, coal slagging tester

It is mainly used to determine the difficulty of slagging during coal gasification or combustion. Widely used in laboratories of coal, metallurgy, electric power and other departments, especially coal-fired units. If there is a boiler unit, the slagging nature can be determined in advance to guide the on-site coal preparation and prevent slagging.

1 1, coal activity tester

Used to determine the chemical reactivity of coal and coke to carbon dioxide, that is, the reducing ability of coal to carbon dioxide at a certain high temperature. It can be used by coal, chemical industry, building materials, electric power, metallurgy, geological exploration and scientific research departments.

Second, how to choose coal quality analysis instruments

1, ordered according to enterprise product demand.

The purpose of purchasing coal quality analysis instruments is to ensure that the product quality of the enterprise is controlled, so we should pay attention to the adaptability of the instruments to the products of the enterprise, such as the test time before the furnace should be as fast as possible, the incoming inspection should be able to print the test bill, and the finished product inspection should consider the power of the instruments. However, the professional requirements for steel products, wire ropes and other single products can be appropriately reduced, while forging copper alloys, aluminum alloys, stainless steel and other enterprises should pay special attention to the professionalism of instruments. Generally speaking, professional instrument testing is more convenient and faster.

2. Decide to order coal quality analysis instruments according to the scale of the enterprise.

Enterprise scale is generally divided into three categories: large, medium and small. Large enterprises can generally be equipped with coal quality automatic industrial analyzer, microcomputer automatic calorimeter, microcomputer rapid sulfur detector and other instruments, and the cost of coal laboratory can be controlled within 500,000-600,000 yuan. Enterprises with general conditions and small investment scale can consider configuring economical full-automatic calorimeter, sulfur detector and box-type high-temperature furnace to build a laboratory, with a total investment of about 30,000 yuan.

Like most domestic enterprises at present, we should not only meet the needs of quality control, but also make the detection timely, accurate and easy to operate. They can be equipped with a set of mid-range automatic calorimeter, Chinese character intelligent sulfur detector, intelligent muffle furnace and other equipment, and the investment of the whole laboratory is about 70,000-80,000 yuan. Some enterprises only need to detect some coal quality indicators such as calorific value or ash and volatile matter, and they can choose to equip themselves with instruments according to their actual conditions.

When purchasing coal quality analysis instruments, coal quality laboratory equipment and coal quality inspection instruments, it is necessary to conduct an all-round inspection of coal quality instrument manufacturers, mainly from the aspects of technology, quality and service, whether the enterprise has the conditions to produce instruments, and the user's evaluation of the quality and service of the instrument manufacturers.

At present, imported laboratory instruments have high prices and strong professional operability, while domestic mid-range instruments are more suitable for the needs of small and medium-sized enterprises. The quality and performance of products are relatively stable, and the test results are compared. Generally speaking, manufacturers are lower than dealers in price; Good quality instruments are more expensive than poor quality instruments. Users should choose instruments with reasonable price and stable quality, and coal quality testing instruments with high cost performance. They should not only consider the service commitment, rationality and credibility of the enterprise, but also consider the maintenance of the instrument outside the warranty period and whether the supply price of spare parts and consumables is reasonable.

3, the purchase quality is not chaotic _ timely service

In terms of instrument quality, price and service, the service ability of coal quality testing instrument suppliers is mainly considered. At present, the quality of foreign famous products is better than that of domestic ones, and the prices are not comparable. The quality and function of domestic medium-grade instruments are similar, but the functions are slightly different.

4. Choose a reasonable price.

Generally speaking, the service quality of coal quality analysis instruments is better than that of merchants, and the service with sales outlets is more timely, but it depends on the public services provided by various manufacturers to the society. The content of the commitment should give special consideration to the maintenance of coal quality analysis instruments and the supply of spare parts and consumables outside the warranty period.