Wet Flue Gas Desulfurization

2.1 Two-stage gas furnace installed base checks 2.1.1 Check by drawing gas stove base size, the size of embedded parts and the relative position of the reference, check the dimensions and relative position of each hole, the test center and two-story base, three-hole deviation, maximum deviation of not> 30mm. If you can not meet the requirements should seek remedies to ensure the quality of the equipment installed. If the deviation is already out of adjustment and remedies of the allowable range, building and construction units should notify thorough rectification. 2.1.2 bottom structure general assembly and welding gas furnace bottom structure is split shipments shipped to the site for assembly or welding. The grate base and chassis welding, seal insertion tube and grate base welding, positioning water jacket installation support channel positioning welding (preferably the support channel with grate base stay connected welding). This work can be carried out simultaneously with the installation of the bearing ring. Welding and positioning process to check each piece of concentricity and circumference, especially coaxial seal insertion tube. 2.1.3 installation of bearing and bearing ring being furnace center, the method according to embedded iron and two-story, three-hole size to find: fall from the third hole center line to the layer plane suspended integrated throughout errors occur is determined furnace center. As the plant is not good, mainly based bearing embedded iron center circle and the middle round hole center is determined by the length of the middle round hole diameter greater than 400mm, width of 200mm thickness of 6mm steel plate placed on the basis of the center, or replaced with a channel, 300mm diameter 3mm steel intermediate attachment to the centers of buried iron bearing center, the bearing ring radius is the radius of the circle, to find each circle is the basis of the approximate center of the intersection. To the base about the center, bearing ring radius is the radius of the circle to find the actual center of each bearing, fixed bearing, the lower bearing ring on the bearing housing, the bearing inner ring groove under water to find a level. Water overflow location low in the housing bottom plus horn, a maximum of more than three, until the water along around the bearing ring without overflow trenches filled up, indicating that the bearing ring has been leveled. Then the bearing seat and buried iron welding firm, the lower bearing ring and bearing welding firm, water and debris in the trenches clean, grease and loaded ball mounted on the bearing ring. Note ball after Bahrain due circumferential direction along the bearing ring around 300mm clearance, the ball bearing rings too close together not to move, the ball is too small to support strong enough. For 2.2 m diameter or less gas stove, a basis for ± 0.00 plane, the point should be installed first leg, the bearing ring is then placed on the overall tone level. 2.1.4 is installed into the bottom of the lower bellows seal bellows seal put into the foundation pit, the relative height of the plane by drawing support position and check the seal bearing ring, it is necessary to ensure water seal height, but also to ensure the seal and grate base and seal the insertion tube of non-interference, to determine the height and position of the seal support channel. Into the upper portion of the bellows seal on the support channel, taking four points along the circumference of the amount of water seal sealing tube into bearing rings ensure uniform size, which is to ensure the seal in the center position, the general requirements to ensure the bottom seal and the bearing ring height, concentricity error