Side-pull-type ring heat-insulation nail

Abstract

The invention discloses a side-pull-type ring heat-insulation nail. The side-pull-type ring heat-insulation nail is provided with a side-pull ring of which the upper end is necked and a cylindrical screw, wherein three holes are formed in the lower part of the ring wall of the side-pull ring; tilt wings are arranged outside the side-pull ring; an end plate is fixedly connected onto the side-pull ring and is provided with a center hole; a ring-shaped flange is arranged at the center hole of the end plate; the center hole is a threaded hole; one end of the cylindrical screw is in threaded connection with the center hole of the end plate. The side-pull-type ring heat-insulation nail is characterized in that three end plate fixing grooves are formed in the lower part of the ring wall of the side-pull ring, and each end plate fixing groove is positioned between every two adjacent holes; the end plate is provided with three spokes which are circumferentially distributed; each spoke is fixed at the top end of the corresponding end plate fixing groove in the ring wall of the side-pull ring. The side-pull-type ring heat-insulation nail disclosed by the invention has the advantages that a fixed surface after pouring is formed at one time and has low possibility of cracking, and better integrity and higher strength are realized, castables are not easy to fall off and the like.

Description

technical field [0001] The invention relates to a side-pull type circular environmental protection nail, in particular to a side-pull type circular environmental temperature nail with an end plate fixing groove. Background technique [0002] Existing catalytic cracking equipment is an oil refinery production equipment that uses heavy oil as raw material, completes catalytic cracking reaction through catalyst action, and produces light oil and chemical raw materials. The catalytic cracking equipment has a heat-insulating and wear-resistant lining, and the heat-insulating and wear-resistant lining is composed of anchors (side-pull round environmental temperature nails) and lining castables, which are firmly attached to the wall, and the castables contain Aggregate, powder, curing, fines, and additives. [0003] The end plate of the annular heat preservation nail in the prior art is fixedly connected with the bottom of the side-drawing ring, resulting in a narrow hole, so ...

AI Technical Summary

Problems solved by technology

[0003] The end plate of the annular heat preservation nail in the prior art is fixedly connected with the bottom of the side-drawing ring, resulting in a narrow hole, so that when it is poured with the castable, the large-grained aggregate cannot enter the ring of the side-drawing ring , can only be stuck in the hole, and can only enter the fine material and powder. Therefore, after the heat-insulating and wear-resistant lining is cast, pores will appear, making the surface uneven. In severe cases, cracks will easily occur, and the strength Low, the castable is easy to fall off, making the integrity poor

Images