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Cone once-forming method

A cone forming and cone technology, which is used in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of increasing the purchase cost of construction units, limited specifications and size, and large typesetting loss, avoiding segmented assembly, The effect of convenient construction and stress relief

Active Publication Date: 2018-06-08
CHINA NAT CHEM ENG THIRD CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During on-site production, it is usually selected to cut the material in sections, and then use the roller bed to roll in sections, and then combine the tapered surfaces rolled in sections. This method has a long production cycle and is limited by the size and layout of the incoming plates. The loss is large, and the prefabricated cone site of the roller bed is required, and there are many types of work involved, and the mechanical cost is large, which increases the purchase cost of the construction unit.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The vertebral body produced in this embodiment is the bottom cover of the slag bin. The diameter of the small opening section of the bottom cover is 400mm, the diameter of the large opening section is 6000mm, and the height is 4820mm. The material of the fan ring plate is carbon steel Q235-B, and the thickness of the fan ring plate is 8mm.

[0030] figure 1 It is a structural schematic diagram of the fan ring plate 1 in this embodiment. figure 2 It is a schematic diagram of lifting the small mouth section of fan ring plate 1 in this embodiment.

[0031] The cone molding method of the present embodiment comprises the following steps:

[0032] a. The steel plate is blanked at one time and tailor-welded to form the fan ring plate 1 required for the formation of the vertebral body;

[0033] b. A fixed bucket 5 equal in diameter to the small mouth section of the vertebral body is installed at the small mouth section of the fan ring plate 1;

[0034] c. 3 rib plates 2 ...

Embodiment 2

[0039] The vertebral body produced in this embodiment is the top cover of the slag bin. The diameter of the small opening section of the top cover is 500mm, the diameter of the large opening section is 5980mm, and the height is 240mm. The material of the fan ring plate is Q235-B, and the thickness of the fan ring plate is 3mm.

[0040] The cone molding method of the present embodiment comprises the following steps:

[0041] a. The steel plate is blanked at one time and tailor-welded to form the fan ring plate 1 required for the formation of the vertebral body;

[0042] b. A fixed bucket 5 equal in diameter to the small mouth section of the vertebral body is installed at the small mouth section of the fan ring plate 1;

[0043] c. 3 rib plates 2 are installed on the fan ring plate 1, and the 3 rib plates 2 are welded on the busbar of the fan ring plate 1 and evenly distributed on the fan ring plate 1, and the 3 rib plates 2 connect the fan ring The area of ​​the plate 1 is ...

Embodiment 3

[0048] image 3 It is a structural schematic diagram of the fan ring plate in this embodiment. The vertebral body that present embodiment makes is ash storehouse bottom cover, and the small opening section diameter of bottom cover is 600mm, and the large opening section diameter is 10100mm, and height 6700mm, and fan ring plate material is stainless steel, and fan ring plate thickness is 18mm.

[0049] The cone molding method of the present embodiment comprises the following steps:

[0050] a. The steel plate is blanked at one time and tailor-welded to form the fan ring plate 1 required for the formation of the vertebral body;

[0051] b. A fixed bucket 5 equal in diameter to the small mouth section of the vertebral body is installed at the small mouth section of the fan ring plate 1;

[0052]c. 5 rib plates 2 are installed on the fan ring plate 1, and the 5 rib plates 2 are welded on the busbar of the fan ring plate 1 and evenly distributed on the fan ring plate 1, and t...

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Abstract

The invention provides a cone once-forming method. The method includes the following steps of blanking a steel plate at a time, conducting tailor-welding to form a sector plate required for cone forming, installing a fixing barrel with the diameter the same as the diameter of a small-opening section of a cone at a small-opening section of the sector plate, installing lifting lugs on the sector plate, installing welded junction assembling clamps on the straight sides of the sector plate, starting a hoister to lift the small-opening section of the sector plate, descending the sector plate, conducting the lifting and descending operations 2-3 times, then conducting lifting and assembling the two straight sides of the sector plate through the clamps, and conducting welding to complete cone forming. By means of the method, blanking is conducted at a time, the stress is eliminated in the hoister lifting process by means of the gravity of the sector, no special rolling device is needed, the cone forming efficiency is improved, the large-diameter cone forming difficulty is reduced, and the method has high industrial application value.

Description

technical field [0001] The invention belongs to the field of chemical equipment manufacturing, in particular to a method for one-time forming of a cone. Background technique [0002] Cone parts are widely used in chemical equipment, for example, they can be used as the bottom or top cover of reactors, separators, ash bins, etc. In addition, the cone part can also be used as a variable diameter section of the equipment. For example, the upper and lower parts of some reaction towers have different diameters. At this time, the cone parts can be used to connect the two towers with different diameters. [0003] At present, cones with a diameter greater than 3.5 meters in general design drawings are basically supplied in sections or produced on site due to transportation road reasons and traffic control in various places. When supplying in stages, there will be handover work between the manufacturer and the installation and construction unit, resulting in additional expenses. Du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/00
CPCB23K31/00
Inventor 陈春海
Owner CHINA NAT CHEM ENG THIRD CONSTR