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Connecting method of limestone powder bin bracket

A technology of limestone powder and connection method, which is applied in the direction of non-removable pipe connection, welding equipment, pipe/pipe joint/pipe fitting, etc. It can achieve the effect of simple structure, high reliability and improved coaxiality

Inactive Publication Date: 2008-03-05
许德富
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This connection method has the defect that the coaxiality of the two tubes cannot be guaranteed; in some processing units, in order to ensure the coaxiality between the two tubes, a short tube is sleeved inside the two tubes at the joint of the two tubes, and the outer diameter of the short tube is The transition or interference fit with the inner diameter of the two pipes can effectively improve the coaxiality of the connection between the two pipes, but when processing large-size pipes, this form of centering is still unreliable, because this method does not connect the two pipes fixedly

Method used

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  • Connecting method of limestone powder bin bracket

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Embodiment Construction

[0015] Three wing plates 6 are respectively welded at the mouths of tubes 1 and 5 of tubes A and B, and the three wing plates 6 are evenly distributed on the outer wall of the tube at 120 degrees. Each wing plate 6 is provided with a connecting hole 2, and the wing plate 6 is close to the tube. Open a 90-degree fan-shaped or triangular gap at the mouth.

[0016] There is an interference or transition fit in the tube A 1 with a lining ring 7, a part of the lining ring 7 is inserted into the mouth of the tube A 1, and a taper is opened on the ring wall of the exposed part; the tube B 5 is set on the ring 7, and the nozzles of the two tubes Leave a gap of 2-9MM between them.

[0017] Align the wing plates 6 of the two tubes 1 and 5 of A and B, and connect the corresponding wing plates 6 of the two tubes through a connecting plate 4 with a corresponding connection hole through bolts, and fasten the connection;

[0018] Weld the nozzles 1 and 5 of pipes A and B.

[0019] After we...

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Abstract

This invention is a connection method of limestone powder depot which relates to the connection method of supporting tubes with coaxiality requirements including the following steps: 1) procession of the supporting tubes: welding grooves are set at the ends of the tubes, at least two flange slabs should be distributed evenly on the outer surface at each end, on the flange slab there should be at least one joint hole and a fan-shaped or deltoidal gap of 90 degree near the opening of the tube; 2) jointing the tubes: a bushing ring is inserted into one tube with one part in; there is a taper on the outer wall of the exposed part that is sleeved by another tube with a gap of 2-9mm between tubes; 3) aligning the flange slabs and jointing them by connecting board with corresponding joint hole via bolts; 4) melding the openings of the tubes. This invention fixes and joins the tubes via connecting flange slabs to increase the coaxiality after melding.

Description

technical field [0001] The invention relates to a connection method of a support pipe, in particular to a connection method of a support pipe requiring coaxiality. Background technique [0002] The limestone powder silo is an auxiliary device in the flue gas desulfurization process of the power plant. The powder silo body is placed on a steel frame, and the steel frame is connected by multiple steel pipes. In the process of making the steel frame, the pipes are connected to each other and then welded together. This connection method has the defect that the coaxiality of the two tubes cannot be guaranteed; in some processing units, in order to ensure the coaxiality between the two tubes, a short tube is sleeved inside the two tubes at the joint of the two tubes, and the outer diameter of the short tube is The transition or interference fit with the inner diameter of the two pipes can effectively improve the coaxiality of the connection between the two pipes, but when process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L13/02B23K31/00B23K101/06
Inventor 赵孝荣吴立新许德富
Owner 许德富
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