Wally Methods Of Selecting Jaw Crusher
One of the more versatile of the mining crushers is a jaw crusher
. A used jaw crusher can be used for quarried materials, sand and gravel and recycling projects. Also known as a toggle crusher, jaw crusher use two "jaws", one fixed and the other moving, to move ore down a tapered chute so material is crushed progressively into smaller pieces. A weighted flywheel moves the shaft to create a motion that closes the gap at the bottom where the ore is crushed to pieces small enough to fit through the bottom. Used jaw crusher can be found in single or double toggle models.Jaw crusher is a fundamental crushing equipment of mining industry, an indispensable machine for each mining enterprise. Because of the manufacturing process of jaw crusher is simple and the cost is relatively cheap, it favored by mining industry. There has a lot of domestic enterprises can design and manufacturing jaw crusher, of course their levels are uneven. Then how to choose a suitable jaw crusher for enterprises and create the biggest interests? Shanghai Shunky provides you the following good ideas about how to choose and buy the jaw crusher.First of all, you should have a clear cognition about the hardness of your material, each specification of materials for the same type jaw crusher have different production. And then you can determine the appropriate jaw crusher model for you according to the specific information, and other equipment. Second, consider the production capacity of
stone production line. It needs us to calculate well the output per day even per hour, in addition, prior to determine the feeding size, discharging size and material types, because this is the premise for next step of considering buying the type of equipment. Third is to make sure that model and providers of your jaw crusher, because the performance and model of each jaw crusher from every manufacturer will have different places, so it has to look if the jaw crusher have appropriate accessories. But try to select the same manufacturer"s accessories, Shanghai Shunky will provide to give you the most appropriate help according to the models of jaw crusher you offered.It is very important for the mining enterprise to choose the right jaw crusher, because jaw crusher is often installed fixed and it is difficult to restructure, so be sure to take a good choice of the first step.As the professional manufacturer of complete sets of mining machinery, such as
Flotation cells, Henan Hongxing is always doing the best in products and service.Belt Conveyor:http://www.hxjqchina.com/product-list_63.html Vibrating feeder:http://www.hxjq-crusher.com/44.html
How to Protect Coal Gasifier in Working?
Coal gasification is a process that converts coal from a solid to a gaseous state. The gas that is created is very similar to natural gas and can be used to make chemicals, fertilizer, and/or electricity.
The damage of the coal gasifier partial operation can be largish. So we should protect the coal gasifier from partial operation. Now the technical engineer of Henan Hongxing Mine Machinery company which manufactured jaw crusher will introduce you the detail features and causes of the coal gasifier partial operation. And the details are as following:
The characteristics of a coal gasifier partial operating: the oxidation layer in the gasifier burns on one side and the other side can burn. Detect with the drill rod, one side the steel oxide layer burning red, it is dark red or no change in the other side of steel. In the side the coal can't burn, there is a large number of air and water vapor not involved in gasification but mixing in gas, which seriously affect the quality of gas. There are many reasons for the partial operation of the coal gasifier, which mainly includes the following types:
1, caused by the original furnace situation. The so-called primitive furnace, is before fire the gasifier, the uneven loading coal form partial burn.
2, caused by local slag of the coal in the furnace. As a result of operation, the slag produced by the fire side not timely treatment caused the ash layer at one side becomes thicker, thus causing severe partial burn.
3, the uneven feeding coal caused the partial operation. When feeding coal into the gasifier, the position of the coal pile design unreasonable or not adjusted, which results in the coal one side more one side less, which will finally caused the partial burn.
4, the uneven air volume caused the partial operation. The air enters into the coal from the gasifier. If it is one side large and one side small of the air volume, which will also cause the partial burn.
5, the water leakage of the water jacket caused the partial operation. Coal for gasification must be in good quality, which is with small stickiness, small volatile, a block diameter less than 40mm, moderate lump. If using coal with large stickiness, which can cause the furnace carbonization layer into a paste best gas furnace slag and serious impact on gas production, it is also possible damage the equipment. It also can cause partial explosion or partial burn. So the quality of the coal is very important.
Coal gasification is a process by which COAL is converted into a fuel gas rich in hydrogen and carbon monoxide. The process was first developed in about 1780 and was widely commercialized by the early 1900s. Before natural gas became widely available in the 1940s, many North American and European cities used coal gas as a heating and lighting fuel. It was referred to variously as blue gas, producer gas, water gas, town gas or fuel gas. Often using the same low-pressure mains for distribution, natural gas replaced fuel gas in most uses by the 1950s because of its greater heating value and lack of contaminants.
by: alexiawell
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