Introduction: Types of silicon carbide nozzles are divided into two major species: hollow cones and solid cones. The tangential hollow cones are divided into one-way tangential hollow cones, one-way tangential solid cones, one-way double-head tangential hollow cones, one-way double-head tangential solid cones, two-way hollow cones, and two-way solid cones. Solid cones are spiral nozzles. The tangential hollow cone nozzle atomization effect is stable and uniform, and the free path is large and difficult to plug.
The most widely used of silicon carbide is the nitrogen-bonded silicon-carbide nozzle, which is mainly imported brands. With the understanding of the owners and environmental protection technicians, it is gradually transformed into a reaction-sintered silicon carbide nozzle. The advantages of reaction-sintered silicon carbide nozzles are their low price and long service life. In particular, the wear resistance and acid and alkali resistance of silicon carbide are relatively good. The most used flue gas desulphurization nozzles in domestic flue gas desulfurization projects are silicon carbide (or silicon nitride) and stainless steel.
The type of silicon carbide nozzle is divided into two major species: hollow cones and solid cones. The tangential hollow cones are divided into one-way tangential hollow cones, one-way tangential solid cones, one-way double-head tangential hollow cones, one-way double-head tangential solid cones, two-way hollow cones, and two-way solid cones. Solid cones are spiral nozzles. The tangential hollow cone nozzle atomization effect is stable and uniform, and the free path is large and difficult to plug. The solid cone nozzle atomizes finer, but with larger pressure fluctuations, free pass through is small, and some desulfurization methods can easily block the nozzle.
The state's requirement for desulfurization is ultra-low emission. The nozzles used in most ultra-low projects are: unidirectional tangential hollow cone nozzles, unidirectional tangential solid cone nozzles and unidirectional double-head tangential hollow cone nozzles. The one-way double-headed hollow cone nozzle belongs to a product that has just emerged in recent years. There are not many manufacturers of unidirectional double-head tangential hollow cone nozzles that can really meet the requirements in China.
Stainless steel desulphurization nozzles are divided into one-way tangential hollow cones and solid cones, but stainless steel unidirectional tangential hollow cones are more easily classified into unidirectional tangential hollow cones and two-way hollow cones. Solid cones are spiral nozzles.
Comparison of Silicon Carbide and Stainless Steel Nozzle Products:
The service life of silicon carbide is 10 times or more longer than that of stainless steel.
The brittleness of silicon carbide is so large that it cannot be opened by force after blocking the game. It is not easy to clean, and stainless steel can be safely cleaned.
The wear resistance of silicon carbide is much stronger than that of stainless steel.
The acid and alkali properties of silicon carbide are much stronger than that of steel materials.
Regarding price, it will not be considered for the time being.
Silicon carbide material wrapped unidirectional tangential hollow cone nozzle Silicon carbide material Unidirectional double head tangential hollow cone nozzle Silicon carbide material Unidirectional tangential hollow cone nozzle Nozzle flange connection
Silicon carbide solid cone nozzle Silicon carbide two-way hollow cone nozzle Stainless steel solid cone nozzle Stainless steel one-way tangential hollow cone nozzle
The choice of nozzle material and nozzle type mainly depends on the desulfurization method and actual working conditions. The most common nozzle connections are: threaded connections, wound connections, flange connections, and less frequently used clamp connections.
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