Recent Posts

incredible! Academician of the Chinese Academy of Sciences u…

On June 5, 2017, An Lijia, Director and Academician of the Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, and Zhang Hongjie, academician of the Chinese Academy of Sciences, visited Yuchai to explore a new path for scientific research, production and application of adva ......

Troubleshooting of combustible gas online detector

Combustible gas on-line detector has a very clear large LCD screen, sound and light alarm, with built-in pump to ensure that in a very unfavorable working environment can also detect dangerous gases and prompt prompt operation personnel to prevent. Failure analysis and countermeasures of the use o ......

Tanker user manual and installation method

User operation 1. To ensure the tank truck is clean, the tank and oil system should be cleaned periodically. The inner and outer joints at both ends of the oil hose should be coated with lubricating oil. The tank truck can be easily disassembled and install ......

Causes of fouling in heap leaching - multiphase ion balance …

First, solubility The solubility properties of different kinds of substances in the same solvent often vary widely. To characterize this difference in the substance, the term "solubility" is generally used. Solubility is different from concentration. Concentration refers to the relative ......

Jaw dryer

The machine is characterized by the material placed in the furnace of an iron plate heated drying. The main types are sandblasting plates, rake dryers and scraper dryers. The sanding board (drying pit) is the simplest as shown. As can be seen from the figure, the iron plate is placed on the flu ......

Technical requirements for mining of marble

Marble mine size and length of service requirements: annual blocks greater than 10 000m 3, 30a over the service life; annual blocks 5 000 ~ 10 000m 3, the service life of 25 ~ 30a; annual blocks 3 000 ~ 5 000m 3 , service years 20 ~ 25a; less than 3 000m 3 , service years below 20a. (1) Height of t ......

The nature of thiourea

Thiourea, also known as sulfurized urea, is a white and shiny diamond-shaped six-sided crystal, which is bitter, slightly toxic and non-corrosive. The molecular formula is SC(NH 2 ) 2 , the relative molecular mass is 76.12, the density is 1.405 g/cm 3 , and the melting point is 180-182 ° C. It i ......

Slamming nylon fine screen (5)

D Recycled nylon fine sieve screens With the general promotion of nylon fine screens, more and more old sieves are replaced every year. According to statistics, there are about 60,000 to 80,000 old screens that are scrapped each year. In order to reuse the old nylon screen and reduce the production ......

Basic knowledge of mineral processing

1. Classification of solid minerals Ferrous metal minerals (copper, lead, zinc, nickel, aluminum, magnesium, cobalt, tungsten, tin, molybdenum, bismuth, Gong, antimony, titanium, vanadium). Ferrous metal minerals ( iron , manganese , chromium ). Precious metal minerals (gold, silver , platinum , ......

Preparation of cockroaches

Rare earth metals may be extracted from bastnasite, monazite. Separating and extracting a single rare earth element from the mixed rare earth compound extracted from the concentrate not only separates these dozens of rare earth elements with extremely similar chemical properties, but also must leave ......