Principle of peeling high pressure water gun
Principle of peeling high pressure water cleaning machine: mainly used in cement dry kiln industry
Pressure washer
,
Working principle: The long rod (high temperature and high pressure) is used to spray water into the inner wall of the kiln tail. The water is expanded under high temperature and high pressure, and the impact is generated. The high temperature material suddenly vaporizes and generates a strong explosion. Some of the materials were shaken and smashed, and the crust was removed. This equipment is commonly known in the cement industry (water cannon) and can also remove crusts when not listening to the kiln.
1200T/D
The above-mentioned enterprises are widely used. With our many years of experience in the cement industry, we can solve all kinds of problems in your production. The cement factory uses pressure in addition to crust:
350bar---450bar
Between, water flow:
1200L/H
Left and right, it will not affect the kiln temperature and refractory bricks.
The high-pressure cleaning machine mainly uses high-pressure reciprocating pump as the power source, and forms a high pressure through the special nozzle of the cement industry. The crust of the kiln tail chamber is cleaned without stopping the kiln to ensure the normal operation of the kiln and achieve energy saving. the goal of. Successfully solved the artificial flaws in the cement industry? ? The insecurity, inefficiency, and labor intensity caused by the bombing, and? ? The negative impact of the bombing on the flue, kiln and grate cooler itself is well-equipped with high-pressure water guns, which is convenient, safe, and efficient, and does not affect production.
Advantages of high pressure water gun: simple operation, good cleaning effect, easy to move, with moving wheels,
The company's adequate inventory and professional service staff, timely delivery to the scene, responsible for installation and operation training, to ensure after-sales and rest assured use.
1. Causes and hazards of crusts in cement plants: the temperature of the gas entering the ascending flue at the end of the kiln is
1050
Around °C, the thermal strength of the crust material itself is not high at this temperature, but the strength rises rapidly after cooling. Generally, the crust material can be seen as a block formed by a small amount of liquid phase layering, and the handcuffs do not move. After crushing, after the skin is crusted, the ventilation area of ​​the rising flue of the kiln tail becomes smaller. In severe cases, the actual ventilation cross-sectional area of ​​the ascending flue is only about one quarter of the normal condition, and the gas control gate of the rising flue of the kiln is not available. The role of the air volume of the third air duct of the kiln is adjusted, and the resistance loss at the kiln end is increased.
200-400pa
At this time, the ventilation in the kiln is poor, the heat capacity of the kiln hair is suppressed, and the temperature of the firing zone of the kiln head drops sharply.
200
Above °C, the calcination requirement of clinker is not reached, and there is a serious phenomenon of running raw materials in the kiln, and even the flame can be extinguished, and the incomplete combustion of pulverized coal will increase the reducing atmosphere of the flue and accelerate the speed of skinning. Therefore, the kiln system is disordered due to the rising flue blockage, and various control parameters are difficult to adjust and control.
In general, the main part of the crust blockage is usually concentrated in the lower part of the kiln as it rises from the kiln tail.
1m
Upward
1.5m
On the vertical wall around the rising flue gas distribution valve, the side of the manual valve that is not frequently operated is slightly thicker, and the thickest is reachable.
500mm,
The air distribution valve is electrically controlled on one side and has a thickness of
300
about.
Second, cement removal method comparison of crust
(
1
) Manual removal of cement factory crust: artificial steel brazing
(
2
High-pressure water gun to remove cement factory crust: The crust-removing high-pressure water gun is to press ordinary tap water through a high-pressure pump to tens or even hundreds of MPa, and then pass a special nozzle at a very high main speed (
300-700
Meter
/
Second) a highly concentrated water stream that has a large impact energy and high impact and cutting capacity. It can safely and thoroughly remove all kinds of hydrochloric acid scale, oil, rust and scale. , resins, chemical residues, paints and plugs, etc., are modern internationally recognized and popular low-cost widely used modern cleaning technology.
(
3
) Advantages and disadvantages comparison:
The manual cleaning method is manually cleaned by the worker with steel brazing. The steel brazing insert feels very soft, but the steel brazing does not make it strong. It is not easy to insert a certain depth. The steel brazing is quickly burned red and soft, so the hot cleaning is very good. Not easy to handle, when the rate of crust is high, the cleaning speed can not keep up with the speed of the skin
The crust-removing high-pressure water gun sprays a highly concentrated water jet through a dedicated fresh water nozzle.
400bar-500bar
High pressure water column injection
850-1050
Inside the crust material around °C, the water suddenly vaporizes in the high temperature material and produces a strong explosion. Some of the materials hit are shaken and fall, and the local temperature of the adjacent parts drops rapidly and becomes brittle, hardened, and high pressure. The water jet can peel it off, and the injection depth of the explosive water column matches the thickness of the crust. As a result, the crust material is thus slid, and the rising flue lining is protected, and the ejection angle of the explosion makes the material soft. It will not be caused by equipment and personnel injury caused by large-scale impact.
High-pressure water cleaning of the crust has a simple process, easy to grasp, and the cleaning process is intuitive, which is convenient for controlling the degree of cleaning;
When using high-pressure water to clean the crust, the original artificially plugged material hole can be used to meet the needs of water gun clearing, so as not to reduce the strength and air leakage of the rising flue steel structure.
Third, the cement factory to crust using the model recommended
According to the actual experience of our company for serving various cement production enterprises for many years, the selection of the cement factory to crust high pressure water gun model is as follows;
Clear the kiln tail rising flue crust, select
5022
Go to the crust high pressure water gun (flow:
22L/min,
pressure:
500bar
)
Wall Switch Sockets,Sockets And Switches,Light Switches And Sockets,Switch Socket Outlet
ZHEJIANG HUAYAN ELECTRIC CO.,LTD , https://www.huayanelectric.com