Installation and use method of Air Slide Conveyor Chute

  • Generally, the straight line conveying installation is inclined downward by 6–10 degrees, and the upper and lower grooves and the joints of each groove can be reliably sealed (pads can be added).
  • It needs to be turned with a 90-degree bend (about minutes).
  • It is necessary to use a three-way groove or a four-way groove for bifurcation and load the air valve after the bifurcation to control the flow direction of the fluidized material and ensure that the material “allows gas” to use air, and the deactivation section can reduce the consumption of air volume.
  • The fan is added to the side of the lower tank body after the conveyor line is too long or bifurcated.
  • The installation of the components of the air conveying chute shall be strictly required, and no air leakage or ash leakage shall be allowed. Designed with simple and easy asbestos rope sealing in mind. The site can also use asbestos rope plus lead oil, blanket pads, rubber strips, and other methods according to the specific situation.
  • The exhaust air from the air conveying chute should be exhausted from the tank body on the discharge chute. After passing through the exhaust duct, it should enter the small bag dust removal port. The air volume is 1.5 times the required air volume. 0 or so.
  • Check and adjust components such as inspection doors, three-way grooves, four-way grooves, peep windows, and shut-off valves to make them flexible in operation. It should be closed tightly, and the place where the rubber gate of the shut-off valve and the air slide fabric are in contact should be reshaped repeatedly, and strive to match.

What is an air slide conveyor?

The air slide conveyor can be used for powdery materials that are easy to fluidize, such as cement and fly ash.

The air slide conveyor uses a high-pressure centrifugal fan as the power source so that the material in the closed conveying chute is kept fluidized and the inclined end flows slowly. Using polyester air slide fabric, the main part of the air conveying chute has no transmission part. The operation and management are convenient, the equipment is light in weight, low in power consumption, large in conveying force, and easy to change the conveying direction!

3 types of air slide conveyor

The air slide conveyor chute is a device that uses airflow to convey bulk materials along the pipeline. There are three types of suction, pressure, and hybrid. Its working principle is to use the kinetic energy of the airflow to make the bulk material in a suspended state to be transported along the pipeline with the airflow:

  • Suction type: After the exhaust fan is started, the whole system has a certain degree of vacuum. Under the action of the pressure difference, the airflow makes the material enter the suction nozzle, and is sent to the separator at the discharge place along the conveying pipe, and the material flows from the airflow. After separation, it is discharged from the bottom of the separator, and the airflow is purified by the dust collector and then discharged into the atmosphere through the muffler. The advantage is that the feeding is simple, and the material can be sucked from several places at the same time. But the conveying distance is short and the productivity is low. High tightness requirements.
  • Pressure feeding type: the blower presses the air into the conveying pipe, the material is supplied from the feeder, the mixture of air and material is conveyed along the conveying pipe to the discharge place, the material is discharged through the separator, and the air is purified by the dust collector back into the atmosphere. Contrary to the suction type, the material can be conveyed to several places at the same time, the conveying distance is long, the productivity is high, but the structure is complex.
  • Mixed type: It is a combination of the above two forms.

Remarks: This device is not suitable for materials with large particle sizes, high water content, and poor fluidization!

air slide fabric for cement
air slide fabric for cement

Top 7 Factors That Improve Air Slide Conveyor Efficiency

The air permeability of the stomata. There are many materials for the stomata, such as porous ceramic plates, composite materials, etc., which are selected according to the specific situation.
Install the tilt angle. The optimum inclination angle of the air conveying chute for conveying fly ash is 5°-6°.
Delivery air consumption. The working pressure of fluidized air in the air conveying chute is generally 3.5-5Kpa, and the optimal air consumption is 2-3/㎡·min, that is, the air consumption per minute per square meter of the effective ventilation area of the orifice plate is 2-3.
The moisture content of fly ash. Under normal circumstances, the moisture content of fly ash is less than 1%. If the moisture content is high, it will affect the conveying efficiency and even cause blockage.
The initial velocity of fly ash. A certain initial speed is beneficial to the chute conveying, especially for the shorter chute.
delivery distance. For long-distance pneumatic conveying, corresponding air inlets must be added in the length direction of the chute to ensure that the air enters the chute evenly and keep the fly ash optimally fluidized.
Control of fly ash feed amount. Reminds that the air conveying the chute must be fed evenly to avoid the blockage of the chute caused by excessive feeding in an instant.