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Air chute
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Air chute

Air chute

The air chute is usually used for conveying dry powder. After the materials enter the troughs, the compressed air blown out by the air permeable layer makes it in a flowing state and slides in the inclined trough to achieve the purpose of conveying. It has a simple system, low investment, quick results, easy maintenance, reliable operation, and multi-point discharge. However, because the equipment needs to be installed at an angle, it requires certain layout requirements. During the construction period, the transportation is stable and reliable. The new five-layer canvas conveying board is used for the breathable layer and sealed with silicone to effectively prevent air leakage and powder leakage. The function of the air chute is to collect dry ash together and input it into a pneumatic lift pump. The function of the pneumatic lifting pump is to directly hit the dry ash in the material-sealed pump body to a tens of meters high transfer ash warehouse: this system is suitable for the storage of dry ash on-site.

Air chute

Air chute installation
1. Generally, the straight-line conveying, installation and discharge of materials are inclined 6-10 degrees downward, and the upper and lower grooves and the joints between the grooves are sealed reliably (add pads).
2. Need to turn 90 degrees (about minutes)
3. It is necessary to use a three-way slot or a four-way slot for bifurcation and load the air valve after the bifurcation. In order to control the flow of fluidized materials, to ensure that the material "allows air", the decommissioning section can reduce the air consumption.
4. The calculation formula for the air consumption of the side of the lower tank after the transmission line is too long or branched, and the air chute of the fan is added as follows:
V = 60 × α ×× L where V—gas consumption m3 / h; α—gas consumption per unit area of the ventilation layer is generally 2.0--3m3 / m2 min; B—chute width mm; L—chute length m .
5. The chute exhaust air is exhausted from the tank on the discharge tank. After passing through the exhaust pipe, it should enter the small bag dust removal port. The air volume is 1.5 times the required air volume. The upper tank pressure at the air exhaust port is required to be maintained. about.

Technical parameters of air chute

project
model
200
250
315
400
500
Tank body width
200
250
315
400
500
Produce

the amount

t / h

8 °
cement
twenty two
40
70
130
220
Raw material
16
30
55
100
165
10 °
cement
40
65
120
250
400
Raw material
30
55
90
185
300
Wind pressure KPa
3--4
Air volume m3 / m2.min
1.5--2

Use and maintenance of air chute
1. Turn on the fan before feeding when starting up, stop feeding when shutting down, stop the fan after the material is delivered (or close to it), and stop the fan when it is not in use
2. The conveying trough should be kept sealed, and if there is air leakage or powder leakage, it should be overhauled;
3. When replacing the polyester breathable layer:
a. Cut, cut the breathable layer according to the required size, and use an electric iron (or heated steel bar) to heat and block the cut to prevent diffusion;
b. Make holes, heat with iron rods that are slightly smaller than the diameter of the mounting bolts, and perforate the parts around the breathable layer that need to be perforated. When perforating, be careful not to allow the open flame to burn out the ventilation layer. If you use a drill to drill holes, use a hot iron rod to iron the area around the hole after the drill to prevent it from falling apart.
c. Lay the breathable layer on the punching box, pass through the bolts, add iron bars around it to compress it, and tighten the screw to use.
d. Beads (or flanges) should be depunctured and the welds worn out;
e. In order to ensure sealing, polymer sealant (or 10 mm thick felt pad) can be applied around the lower surface of the breathable layer.

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