Year1
- 疏通面积：
- ＞3平方米
- 疏通工作力：
- 大于65KN
- 高度：
- 3m
Series Coal Bunker Dredges
◆ Product Overview
In the actual operation process of thermal power plants, almost all coal bunkers will or There is more or less the problem of coal blockage. Coal blockage often occurs in the form of coal wall sticking to the wall, coal hanging, agglomeration and jamming. Especially in weather with continuous rainfall, the moisture contained in coal increases, the viscosity of coal particles increases, and coal blockage becomes more frequent. When the coal bunker is clogged and cannot automatically unload coal, and the bunker wall adheres to the coal rack, the effective volume of the coal bunker decreases, reducing the economic efficiency of the system operation.
Severe coal racking will cause a series of problems. Coal cannot fall from the coal transportation pipeline in a normal sequence, resulting in coal feeder interruption, coal feeding volume reduction, mill vibration intensification, boiler belt underload, operating parameter fluctuations, etc. Long-term coal outage may even cause the boiler to flameout. If not handled properly, it will affect normal production. The problem of coal blockage in raw coal bunkers has become a major factor affecting the stable operation of some thermal power plants. Therefore, it is very important and necessary to solve the coal blockage in the original coal bunker and ensure the smooth flow of coal transportation.
◆ The main reasons for blockage
Conduct a specific analysis based on some equipment conditions on site.
At present, most of the raw coal bunkers of domestic thermal power plants are cement, steel, and cement-steel hybrid structures. Its structure is basically the same at the beginning, with the upper part in the shape of a square or cylinder, and the lower part in the shape of a square cone, cone or hyperbola. The upper port is large and the lower port is small. The upper port feeds materials and the lower port discharges materials. The materials fall from top to bottom by their own weight. As the size of the silo outlet decreases, the pressure becomes larger and larger, and the friction between the coal particles and between the coal and the cylinder wall increases, agglomeration occurs between the coal particles, the characteristic size increases significantly, and blockage occurs.
Depending on the type and composition of coal and the temperature, there will be certain effects. After research
the above occurred within
~ meters above the outlet of the lower raw coal bunker.
◆ Corresponding measures
Use manual beating
This is a time-consuming and labor-intensive measure, and it will also cause repeated beatings. There will be cracks in the coal bunker wall.
Use a vibrator to clear the coal bin
Due to the small amplitude of the vibrator, the longer the vibration time, the more firmly the raw coal bunker will be blocked, and long-term vibration will cause greater damage to the equipment. It is difficult to clear the blockage.
Use air cannon to clear the coal. Partial coal blockage can be solved with air cannon. However, due to the small loosening area of air cannon, if the coal is not cleared successfully at the first time, the coal will form a rat hole and air impact will be used again. The air will escape from the hole.
, use the loosening machine to loosen
The characteristic of the conveyor is to start from the thin side of the blockage, destroy the blockage structure, and achieve the loosening effect. Due to the large loosening area (up to
square meters It is powerful (up to
tons, depending on structural changes, it will start automatically after blockage, stop after unblocking, etc., and it will become a new generation of blockage clearing equipment due to fast and efficient reasons.
According to the above solution analysis, we can The comparison shows that the equipment has been developed and used efficiently and is an important equipment for people to better apply to coal bunker cleaning now and in the future.
◆ The working principle and operation of the coal bunker loosening machine (i.e. coal bunker dredge) Advantages
. The loosening machine is installed on the inner wall of the original coal bunker and makes up and down reciprocating movements to clean the coal bunker wall to destroy the basis of the blockage.
. The dredging area is >
square meters, and its height can reach < br/> .
. The dredging working force is greater than
. The power is only
.
. The dredge does not work at ordinary times and will work only after it is clogged. It can be controlled manually or automatically. It can actually start and stop automatically, remotely start and stop, timed start and stop, and fault alarm.
The dredge can replace the material monitor. After the blockage is blocked, it can automatically start, automatically dredge, and automatically stop after dredging.
. The dredge is simple to install, adjustable, safe and reliable.
. Under normal circumstances, the hydraulic oil is replaced once every two years (
),
liters are enough. Once put in, Benefit for many years.
Screenshot
Heilongjiang 853 Farm installation site example
WhatsApp
