Direct sales of mining positive and negative pressure air ducts

Description :

　　Direct sales of mining positive and negative pressure air ducts

　　Direct sales of mining positive and negative pressure air ducts, manufacturers of mining positive and negative pressure air ducts, and mining negative pressure air ducts,kcsNegative pressure air duct for dust removal fan

　　Tai'an Yucheng Mining Equipment Co., Ltd. welcomes your arrival and thanks for your strong support to Yucheng! Tai'an Yucheng Mining Equipment Co., Ltd. sells a large number of negative pressure air ducts and positive pressure air ducts, as well as specialized air ducts for dust removal fans.

　　1、 Application of mining positive and negative pressure air ducts: used for positive and negative pressure ventilation of local fans in coal mines, tunnels, and underground areas;

　　2、 Structure, specifications and dimensions of mining positive and negative pressure air ducts

　　Wind tube varieties: Wind tubes are divided into rubber coated cloth positive pressure wind tubes, plastic coated cloth positive pressure wind tubes, and rubber coated cloth positive pressure wind tubes according to the coating material.

　　1- End ring 2- Installation line for lifting ring 3- Lifting ring 4- Reverse side

　　Allowable error of project size (mm)

　　Wind duct diameter (D) 300 400 450 500 600 800 1000 0 ± 6

　　Wind duct length (L) 5 10 20 0 ± 100

　　Note:

　　1. Special shaped ducts, elbows, tees, etc. with duct size or special shape specifications can be manufactured according to the requirements of the demand. 2. If there are special requirements for the specifications of metal accessories such as wind duct lifting rings and end rings, they shall be agreed upon by both the supply and demand parties.

　　3. Add opposite edges at both ends of the air duct, with a length L of 150-200mm.

　　3、 Report on Ventilation Performance Test of Positive and Negative Pressure Ventilation Ducts for Mining Applications

　　Diameter of the air duct, mm, air resistance per hundred meters (N · S 2/M 8), air leakage rate per hundred meters,%

　　300 ≤811.0 ≤4.0

　　400 ≤196.0

　　450 ≤122.0

　　500 ≤54.0

　　600 ≤24.0

　　800 ≤6.0

　　1000 ≤2.0

　　Note: When the length of each air duct is 10m.

　　4、 Mining positive and negative pressure air duct wind pressure resistance *: After the wind pressure resistance test, the air duct shall not produce phenomena such as detachment, tearing of coating cloth, and opening of joints. The expansion rate of the diameter of the air duct shall not exceed 3.0%

　　1. Wind pressure resistance test: Make the pressure inside the air duct reach 5000-5100Pa and maintain it for 5 minutes, observe whether there are any abnormal phenomena such as detachment, tearing, joint opening, etc. in the air duct;

　　2. Expansion rate measurement: At the same time as measuring the wind pressure resistance of the wind duct, measure the circumference of the wind duct with a tape measure and calculate the expansion rate of the wind duct diameter.

　　Tai'an Yucheng mainly produces FQC2.8 pneumatic extraction ventilation fan positive and negative pressure air ducts, FQCNO3.15 pneumatic extraction ventilation fan positive and negative pressure air ducts, FBD series coal mine explosion-proof press in counter rotating axial flow local ventilation fan zipper air duct, coal mine explosion-proof water tank, mining explosion-proof water bag, mining anti reverse chain, mining pneumatic concrete vibrator, PE-ZKW coal mine polyethylene bundle pipe, 8mm * 1 mining polyethylene bundle pipe and other coal mine specific equipment. Shandong Yucheng Mining Machinery supplies you with specialized mining positive and negative pressure air ducts for fans. Shandong Yucheng is selected for tunnel air ducts, positive and negative pressure air ducts, zipper air ducts, elbow air ducts, trident air ducts, and pants air ducts.

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• Direct sales of mining positive and negative pressure air ducts