Everyone knows the
grinding mill machine is composed of hundreds of parts. Do you know how many valves there are in the
stone powder production line. The number and types of valves have clear regulations and functions. Although small and inconspicuous, they are also not available in the production line. The missing part, today we come to understand the various valves that make up the milling equipment and what are their functions?
Strictly speaking, there are 3 main valves in the
stone powder production line, which are the
feeder valve, the main air valve, and the residual air valve. In addition, there are 4 observation doors and 1 inspection door, which are located at the lower end of the cyclone collector and the return air pipe. 、On the pipe, volute, and main engine casing of the bag filter, each valve has a different design and structure according to its function characteristics. Let's see what their respective functions are?
Discharger valve: it is the powder locker, the main function is to close and lock the powder. We all know that when the material reaches the cyclone powder collector, the material and the airflow begin to separate, and the material is collected into the powder collector under the action of gravity, and the airflow will return to the air The pipe is transported to the fan to start the next round of transportation. At this time, the role of the feeding valve is very critical. It should be kept completely closed when the material is not discharged, otherwise there will be more air leakage and dust from the feeding port, which will reduce the
grinding mill effectiveness.
Main air door: The main air door is on the return air pipe, and the air volume of the entire
stone powder production line is controlled by controlling the diameter of the pipe ventilation. The smaller the valve opening state, the weaker the air volume in the transmission pipeline, and vice versa. The redundant fans are used together until Raymond Grinding to achieve better production results.
Residual air door: The residual air valve is installed in the pipe connected to the bag filter, which mainly affects the air volume of the feed inlet, thereby affecting the air volume of the conveying pipe. This valve should be in the 1/3 open state if the inlet is powdered. After gradually opening until no powder comes out of the feed port, the remaining air door and the main air door are similar in structure to function.
Observation doors: Observation doors are evenly distributed around the main volute of the
grinding mill. As the name implies, they are used for observation. At the same time, when the main engine is blocked, the materials can be taken out from the 4 observation doors to troubleshoot the problem. The most important application of the design of evenly dispersing around the volute.
Maintenance door: It is the most conspicuous valve in the middle of the main casing of the grinding mill. When there is a problem inside the main engine, maintenance can be done from this door, which is convenient and time-saving.
Although the above various valves are simple and low in price, each of them plays an important role in the
stone powder production line. Whether the valve is opened normally or not working due to damage, it will affect the production and processing of the whole machine. In addition, various valves follow the grinding process. The continuous improvement of technology is also advancing with the times in function and design. For example, the feeder door has gradually changed from the original manual control to the electronic control. The automation performance has been strengthened, energy-saving labor costs, and 4 small observations are smooth inside. Design, no eddy current, reduce air flow transmission resistance, etc. The failure rate of the above valves is low, and there are few adjustments. You can adjust to a better state one more time without much distraction, but if the open state causes other failures of the mill, you must pay attention to check and adjust.
The faults that may be caused by incorrect valve status are as follows:
1. The
grinding mill does not produce powder or produces less powder and has low output.
2. Severe powder spraying at the feed inlet.
3. The finished powder is too coarse or too fine.
4. Observe that there is air leakage and powder leakage at the inspection door.
