CN2572171Y

CN2572171Y - Spraying ceramic power lined steel elbow pipe

Info

Publication number: CN2572171Y
Application number: CN 02269679
Authority: CN
Inventors: 段军良
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-19
Filing date: 2002-09-19
Publication date: 2003-09-10
Anticipated expiration: 2012-09-19

Abstract

The utility model discloses a ceramic lined power-spraying steel bent pipe, which belongs to the technical field of metal processing and manufacturing technology, and is mainly used for conveying sandstone, powder slag, etc. for industry and mining. The utility model is composed of a steel bent pipe, the inner wall of the steel bent pipe and a ceramic coating, and is characterized in that the inner wall in the steel bent pipe is tightly appressed with the ceramic coating. The utility model has the advantages of scientific and reasonable design, advanced technology, simple structure, strong abrasion resistance, corrosion resistance, high temperature resistance, heat resistance, strong mechanical shock resistance, good machining property and weldability, fast running, steadiness, little resistance, safe and convenient installation, lower cost, firmness, durability, long service life, etc., and the inner surface is smooth and has no fouling.

Description

The lined ceramics steel elbow pipe that dusts

Affiliated technical field

The utility model relates to a kind of steel elbow pipe, especially relate to a kind of lined ceramics steel elbow pipe that dusts, be metal manufacturing technical field, be applicable to that mainly electric power, metallurgy, mine, coal, chemical industry etc. are used as carrying grindability granule materials such as sandstone, coal dust, lime-ash, aluminium liquid and Korrosionsmedium etc.

Background technique

Before the utility model, the steel elbow pipe that dusts in sector applications such as metallurgy high furnace, the defeated coal dust of electric power, the defeated powder in mine and coal washing is generally diabase lining bend pipe, rare earth Wear Resisting Steel bend pipe, line with rubber bend pipe etc., this class bend pipe is in work serious deficiency and the defective of exposing in service, it mainly shows as follows: diabase lining bend pipe wear-resisting property is general, the lining wall thickness is big, mostly more than 35mm, its elbow internal wall serves as a contrast has only about 15% to be the aluminium sesquioxide pottery in the attached composition, and major part is SiO ₂, SiO ₂Mohs hardness is 6 grades, so anti-mechanical impact property is relatively poor; The wear-resisting steel elbow pipe wear-resisting property that dusts of rare earth is general, and this welding difficulty is big, and linear load is heavy, installing engineering cost height, and bending pipeline burst phenomenon often appears, working life is short; Line with rubber bend pipe non-refractory, easily aging, wear-resisting property belongs to general situation, and such bend pipe gum cover monoblock very easily occurs and peel off phenomenon, causes to come off, and blocking pipe is for ordinary production is placed obstacles.In a word, this bend pipe can only weld bending, and seam need be filled up processing, has influenced working life for this reason, uses this type of bend pipe that dusts and can cause the wasting of resources to relevant enterprise, and influence is produced, and brings than large economy and loses.

Summary of the invention

The purpose of this utility model is that a kind of novel lined ceramics steel elbow pipe that dusts will be provided, to overcome drawback and the defective in the above-mentioned technology.

The technological scheme that its technical problem that solves the utility model adopts is: this structure comprises steel elbow pipe, steel elbow pipe inwall and ceramic layer, and the steel elbow pipe inwall in the described steel elbow pipe is close to ceramic layer.In the running, steel elbow pipe inwall and aluminium sesquioxide produce a kind of tensile stress (also claiming thermal expansion force) and pressure stress respectively under certain combustion high temperature, when combustion process finishes, aluminium sesquioxide enters cooling, solidification stages, the bending steel elbow pipe is cooling cooling thereupon also, the tensile stress of the two, the compressive stress unity of opposites form a complete bending balance integral body, control by self-propagating reaction rail journey, aluminium sesquioxide is overlayed on the steel elbow pipe inwall, formed the two not molten mutually mutually whole machine balancing form of steel elbow pipe and ceramic layer, this moment, purpose of design reached.

Steel elbow pipe of the present utility model has differential of the arc shape steel elbow pipe and circular arc steel elbow pipe, and its diameter is Φ 20～325mm.

The beneficial effects of the utility model are: novel, design code, scientific and reasonable, technology is comparatively advanced, simple in structure, be beneficial to and manufacture, this has anti-strong wearing and tearing, be able to bear strong corrosion, high temperature resistant, heat resistanceheat resistant and outstanding advantages such as mechanical shock resistance is strong, machinability and good weldability, smooth, the smooth non-scaling of its internal surface, operation is quick, steady, and resistance coefficient of friction is little, and installation is convenient, cost reduces greatly, sturdy and durable, long service life is so have higher utility and promotional value.Look into by retrieval new, do not find as yet at present state, in have identical or the similar techniques feature with the utility model.

Description of drawings

Fig. 1 is the utility model schematic perspective view.

Fig. 2 is the utility model overall structure cross-sectional schematic.

Fig. 3 is the utility model differential of the arc shape bend pipe schematic representation.

1. steel elbow pipes among the figure, 2. steel elbow pipe inwall, 3. ceramic layer.

Embodiment

Below in conjunction with accompanying drawing one of them a most preferred embodiment of the present utility model is described.

With reference to accompanying drawing: a kind of lined ceramics steel elbow pipe that dusts, constitute with ceramic layer 3 by steel elbow pipe 1, steel elbow pipe inwall 2, it is characterized in that the steel elbow pipe inwall 2 in the steel elbow pipe 1 is close to ceramic layer 3; It is characterized in that steel elbow pipe 1 has differential of the arc shape steel elbow pipe and circular arc steel elbow pipe; It is characterized in that the steel elbow pipe diameter is Φ 20～325mm.

Claims

1, a kind of lined ceramics steel elbow pipe that dusts is made of with ceramic layer (3) steel elbow pipe (1), steel elbow pipe inwall (2), it is characterized in that the steel elbow pipe inwall (2) in the steel elbow pipe (1) is close to ceramic layer (3).

2, the lined ceramics according to claim 1 steel elbow pipe that dusts is characterized in that steel elbow pipe (1) has differential of the arc shape and circular arc steel elbow pipe.

3, the lined ceramics according to claim 1 steel elbow pipe that dusts is characterized in that steel elbow pipe (1) diameter is Φ 20～325mm.