Dry goods! Introduce the installation skills and optimization plan of the air chute

Installation method of air chute:

1. The general straight-line transportation and installation of incoming and outgoing accessories are inclined downward by 6--10 degrees, and the contact information of the upper and lower grooves and each groove can be effectively sealed (buffer pads can be placed).

2. The turn needs to be bent at 90 degrees.

3. Branch with three-way or four-way channel. After branching, you need to load an air valve to control the flow of fluidized auxiliary materials to ensure that the auxiliary materials "allow gas" to use air. If the section fails, the consumption of air volume can be reduced.

4. The conveyor line is too long or a fan is added to the side of the lower tank body of the branch.

5. The installation requirements of the air chute parts are strict, and air leakage is not allowed to cause ash leakage. Consider sealing with asbestos ropes that are easy to use. According to the situation, lead oil, blanket pads, rubber strips and other methods can also be used for asbestos ropes on site.

6. The exhaust air of the air chute should be exhausted from the upper tank body of the discharge chute, and then enter the small bag dust removal port after passing through the exhaust pipe. The air volume is 1.5 times the required air volume. 0 or so.

7. Inspection doors, three-way grooves, four-way grooves, peep windows, air shut-off valves and other components must be checked and adjusted during operation to make them flexible. When airtight, the rubber gate of the air shut-off valve and the breathable layer The contact area is reshaped repeatedly to make it fit.

Energy-saving renovation and optimization scheme of air chute

Since the air chute has no working parts in the process of conveying auxiliary materials, compared with belt conveyors, screw conveyors and scraper conveyors of the same power, it has less wear, easy maintenance, less energy consumption, no noise, and simple sealing structure. However, due to improper design and use in use, locking is prone to occur. Today, I will share the reasons and solutions with you.

1. Lockdown caused by insufficient transport capacity

Since the locking accessories can only be hit with a hammer on the chute shell, the chute shell will be recessed inward, and the more recessed the locking accessories are, the easier it is to block, forming a vicious circle. The delivery angle is increased from 7 degrees to 11 degrees, and the finished product storage chute is increased from 6 degrees to 8 degrees, which completely solves the locking phenomenon caused by the limitation of conveying capacity.

2. Locking due to unreasonable structure

Pneumatic conveying should try to avoid auxiliary material hedging, high-altitude vertical auxiliary material feeding and continuous bending. The above unreasonable structure will cause the auxiliary material to fail to reach the initial speed, thus causing the auxiliary material to be blocked. The handling method when the above structure is problematic is as follows.

1) The finished product chute reduces the hedging transformation of accessories, and changes the original "t-type" to "y-type".

2) There are many bends to the milling chute, the initial speed cannot be reached, and the auxiliary materials are accumulated and blocked, and the bending of the chute is reduced in 2 places through transformation.

3) Put the coarse powder into the grinding tank, and change the supply of auxiliary materials at a vertical angle of 9m by 45 to reduce the impact of auxiliary materials.