What is the price of a mining belt scale? Why is it higher than that of a conventional belt scale?

A mining belt scale is a belt scale used in the explosive environment of coal mines. It not only has the function of dynamic weighing like a conventional belt scale but also possesses the explosion-proof performance of mining electrical equipment. It can be seen as a cross-product of the two. Mining belt scales are applied to conveyors in coal mines, providing coal mining enterprises with specific raw coal weighing data, which can be used for real-time and historical cumulative coal production monitoring. Their weighing and speed sensors can also provide load and speed data for the coal conveyor's control and protection system. It can be said that the production management of coal enterprises cannot be separated from mining belt scales.

When selecting mining belt scales, coal mining enterprises generally ask two questions first: "What is the price of a mining belt scale?" and "Does the mining belt scale have relevant explosion-proof qualifications?" After receiving a quotation from the manufacturer, users often have a doubt: Why is the price of a mining belt scale higher than that of a conventional belt scale with similar capacity and accuracy?

Regarding the higher price of mining belt scales compared to conventional belt scales, as mentioned earlier, it depends on the specific application environment of the mining belt scale, which determines its more complex performance and technology.

Firstly, mining belt scales must have explosion-proof performance. Many areas in coal mines contain flammable and explosive substances such as methane and coal dust. To ensure safety and avoid explosion accidents, electrical equipment used in coal mines must have explosion-proof qualifications.

Explosion-proof measures in coal mines include explosion isolation and intrinsic safety. Conventional belt scales are not suitable for use in coal mines.

The sensors and instruments of belt scales must be equipped with sturdy, impact-resistant explosion-proof housings, and the circuit part must be intrinsically safe to avoid causing explosions of methane, coal dust, etc.

Both in terms of structural design, materials, and technology, they are more complex than conventional belt scales. There are also fewer manufacturers producing mining belt scales, and they must have the qualification to produce explosion-proof products.

Mining belt scales must also obtain relevant explosion-proof qualifications. Currently, there are only a few mining belt scales in China that possess such qualifications.

Additionally, mining belt scales have better stability and stronger anti-interference ability. Besides flammable and explosive factors, coal mines also have issues such as humidity, temperature differences, dust, interference from large equipment, electromagnetic interference, etc., which can also affect the operation of mining belt scales. For belt scales of the same frame type, there are generally fewer interference factors in a conventional environment. To maintain the same accuracy, more measures need to be taken for mining belt scales.

Furthermore, mining belt scales have a longer transmission distance for data signals and more interference factors. The weighing data of mining belt scales needs to be transmitted from underground to the surface center, covering a long distance, and electromagnetic and mechanical factors can interfere with the transmission.

To ensure transmission efficiency, mining belt scale instruments have stronger anti-interference abilities, and mining belt scale substations are configured to optimize signals and improve transmission efficiency.

In summary, mining belt scales are more complex in technology and design structure. For the same type and accuracy, it is more difficult for mining belt scales to achieve and maintain accuracy, and they also need to ensure safety, naturally resulting in a higher price.