CN205979830U - Anticorrosion structure of brick lining chimney bracket is reformed transform to improved generation - Google Patents

Abstract

The utility model provides an anticorrosion structure who reforms transform brick lining chimney bracket, it includes bracket, cement mortar, combined material layer, the groove at bracket place is filled there is cement mortar, an outer circular structure polish into in the closed angle department of bracket, and outer circular structure's radius is 50 between the 100mm, acidproof clay has been paintd by bracket and cement mortar's reentrant corner department, and an interior circular structure is smeared into to acidproof clay, is interior circular structure's radius 50 100mm, the extexine of bracket still spraying has one deck combined material layer, and the combined material layer forms a totally enclosed whole with the bracket extexine, the combined material layer includes under coat, plane glass scale, anticorrosive coating, wear -resistant surface layer, the under coat coating is at the bracket surface, the under coat surface sets up plane glass scale, the coating of plane glass scale surface is used for fire -retardant anticorrosive anticorrosive coating, the anticorrosive coating surface sets up the wear -resistant surface layer.

Description

A kind of modified model transforms the anticorrosion structure of brick lining chimney bracket

Technical field

This utility model is related to a kind of anticorrosion structure technical field of firepower electrical plant chimney, changes particularly to a kind of modified model Make the anticorrosion structure of brick lining chimney bracket.

Background technology

At present, domestic thermal power plant coal unit install flue gas desulfurization device in, great majority use limestone- Gypsum wet (no GGH) sulfur removal technology, at 50 DEG C about, under this temperature conditions, flue gas is that saturation is wet to smoke stack emission flue-gas temperature Flue gas, flue gas can be condensed into liquid in chimney inner surface, and usual pH value is 2-3, containing sulphuric acid, nitric acid, phosphoric acid, hydrochloric acid, hydrogen fluorine The acid mediums such as acid, cause heavy corrosion to chimney lining or surface anticorrosion layer.

At present, the brick lining chimney majority being currently in use adopts plasticine coating and domestic foam glass brick, and in cattle It is anti-corrosion that lower limb privileged sites filling acid resistant adhesive mortar looks for the anti-corrosion method on slope to carry out, and the acidproof brick+foam glass brick lining of chimney props up On ring bracket, the mortar joint (especially vertical mortar seam) of masonry liner can not possibly be completely airtight for support, the acid solution of condensation after desulfurization Along inner wall of stack trickling, can at bracket produce assemble, in addition chimney run when always have temperature change, have contraction or Expand, as long as a little ftractureing, liquid just enters bracket at this, and under the effect of the pressure, acid solution can penetrate into heat insulation layer, Corrosion is produced to the concrete outer tube of chimney.If concrete outer tube is chronically at the immersion of acid solution, dilute sulfuric acid can make concrete swollen Swollen, crackle also can be made to extend further, finally penetrate chimney wall, in this case, flue gas will constantly permeate, constantly rotten Erosion, the reinforcing bar ultimately causing whole section in chimney is cut off, and destroys the bearing capacity of chimney, the safe operation of impact power plant.

Utility model content

The purpose of this utility model is to provide a kind of structure simple, easy for installation, the transformation brick lining of favorable anti-corrosion effect The anticorrosion structure of chimney bracket.This utility model is achieved in that a kind of anticorrosion structure of transformation brick lining chimney bracket, its Including bracket, cement mortar, composite layer；The groove that bracket is located is filled with cement mortar, the sharp corner of described bracket It is polished into an external arc structure, and the radius of external arc structure are between 50-100mm；Bracket and the moon of cement mortar It is coated with acid resistant adhesive mortar, acid resistant adhesive mortar smears into an Inner arc structure, and the radius of described Inner arc structure are 50- at angle 100mm；The extexine of described bracket is also coated with one layer of composite layer, and bracket extexine is formed one entirely by composite layer Sealing is overall；

Described composite layer includes priming coat, plane glass flake, anticorrosive coat, wear-resistant coat；Described priming coat applies Overlay on bracket outer surface；Priming coat outer surface arranges plane glass flake；Plane glass flake outer surface coats for hindering Combustion antiseptical anticorrosive coat；Anticorrosive coat outer surface arranges wear-resistant coat.

In the anticorrosion structure of transformation brick lining chimney bracket described in the utility model, described priming coat is used for the cattle that bonds The extexine of lower limb and plane glass flake.

In the anticorrosion structure of transformation brick lining chimney bracket described in the utility model, the radius of external arc structure is 80mm；The radius of Inner arc structure is 80mm.

In the anticorrosion structure of transformation brick lining chimney bracket described in the utility model, the thickness of composite layer is in 3- Between 5mm.

Modified model of the present utility model transforms the anticorrosion structure of brick lining chimney bracket, increases the bonding of composite layer Property；Meanwhile, the negative and positive angle design of bracket position also employing is so that depend on overall, continuous, the full envelope that composite layer thereon is formed The protective system of enclosed, can not only thermal contraction or expansion to the cold, play the effect of expansion joint；And be able to bear strong corrosion, low water absorption with High permeability resistant, high intensity and shock resistance, meanwhile, resist flexible, good seepage-proof property.Additionally, by arranging priming coat, can play viscous The extexine of knot bracket and the effect of plane glass flake, by arranging anticorrosive coat, it is possible to increase anti-corrosive properties, resistance to by arranging Wear layer, it is possible to increase bracket surface abrasion resistance.

Brief description

Fig. 1 is the anticorrosion structure schematic diagram that the modified model that this utility model embodiment provides transforms brick lining chimney bracket；

Fig. 2 is the cross section structure diagram of the composite layer that this utility model embodiment provides.

Specific embodiment

In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing 1,2 and in fact Apply example, this utility model is further elaborated.A kind of anticorrosion structure of transformation brick lining chimney bracket, it includes cattle Lower limb 1, cement mortar 2, composite layer 5；The groove that bracket 1 is located is filled with cement mortar 2, the sharp corner of described bracket 1 It is polished into an external arc structure 3, and the radius of external arc structure 3 are between 50-100mm；Bracket 1 and cement mortar 2 Inner corner trim at be coated with acid resistant adhesive mortar, acid resistant adhesive mortar smears into an Inner arc structure 4, the radius of described Inner arc structure 4 For 50-100mm；The extexine of described bracket 1 is also coated with one layer of composite layer 5, and composite layer 5 is by bracket 1 extexine Form a hermetically sealed entirety；

Described composite layer 5 includes priming coat 51, plane glass flake 52, anticorrosive coat 53, wear-resistant coat 54；Described Priming coat 51 is coated in bracket 1 outer surface；Priming coat 51 outer surface arranges plane glass flake 52；Plane glass flake 52 Outer surface coats the anticorrosive coat 53 for fire retardant, anticorrosive；Anticorrosive coat 53 outer surface arranges wear-resistant coat 54.

Alternatively, plane glass flake 52 is VF-M fire-retardant type energy glass flake, is put down using high-performance export-grade Planar glass flake 52, compared with common " frothing " process level glass flake, plane glass flake 52 does not have radian, more can It is effectively prevented vapor permeation.

Alternatively, wear-resistant coat 54 adopts Nano/micron material (SIC, pottery etc.).

Alternatively, using Japanese import low solvent high-performance refractory resin, anticorrosive coat 53 Toughness Ratio is common for anticorrosive coat 53 Material improves 1.85 times.

In the anticorrosion structure of transformation brick lining chimney bracket described in the utility model, described priming coat 51 is used for boning The extexine of bracket 1 and plane glass flake 52.

In the anticorrosion structure of transformation brick lining chimney bracket described in the utility model, the radius of external arc structure 3 is 80mm；The radius of Inner arc structure 4 is 80mm.

In the anticorrosion structure of transformation brick lining chimney bracket described in the utility model, the thickness of composite layer 5 exists Between 3-5mm.

Modified model of the present utility model transforms the anticorrosion structure of brick lining chimney bracket, increases the bonding of composite layer 5 Property；Meanwhile, the negative and positive angle design of bracket 1 also employing is so that depend on the overall, continuous, complete of composite layer 5 formation thereon Enclosed protective system, can not only thermal contraction or expansion to the cold, play the effect of expansion joint；And be able to bear strong corrosion, low water absorption With high permeability resistant, high intensity and shock resistance, meanwhile, resist flexible, good seepage-proof property.Additionally, by arranging priming coat 51, Neng Gouqi To the extexine of bonding bracket 1 and the effect of plane glass flake 52, by arranging anticorrosive coat 53, it is possible to increase anti-corrosive properties, By arranging wear-resistant coat 54, it is possible to increase bracket 1 surface abrasion resistance.

The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every The equivalent structure made using this utility model description or equivalent flow conversion, or directly or indirectly it is used in other phases The technical field closed, is all included in the same manner in scope of patent protection of the present utility model.

Claims (4)

1. a kind of anticorrosion structure of transformation brick lining chimney bracket, it includes bracket, cement mortar, composite layer；Bracket institute Groove be filled with cement mortar, the sharp corner of described bracket is polished into an external arc structure, and external arc structure Radius are between 50-100mm；It is coated with acid resistant adhesive mortar, acid resistant adhesive mortar smears into one at bracket and the inner corner trim of cement mortar Inner arc structure, the radius of described Inner arc structure are 50-100mm；The extexine of described bracket is also coated with one layer again Condensation material layer, bracket extexine is formed a hermetically sealed entirety by composite layer；

Described composite layer includes priming coat, plane glass flake, anticorrosive coat, wear-resistant coat；Described primer-layer-coated exists Bracket outer surface；Priming coat outer surface arranges plane glass flake；Plane glass flake outer surface coats for fire-retardant anti- Rotten anticorrosive coat；Anticorrosive coat outer surface arranges wear-resistant coat.

2. the anticorrosion structure of transformation brick lining chimney bracket as claimed in claim 1 is it is characterised in that described priming coat is used for The extexine of bonding bracket and plane glass flake.

3. transformation brick lining chimney bracket as claimed in claim 1 anticorrosion structure it is characterised in that external arc structure half Footpath is 80mm；The radius of Inner arc structure is 80mm.

4. the anticorrosion structure of transformation brick lining chimney bracket as claimed in claim 1 is it is characterised in that the thickness of composite layer Degree is between 3-5mm.