CN209130907U - Wear-resisting association type high-temperature furnace smoke pipeline - Google Patents

Abstract

A kind of wear-resisting association type high-temperature furnace smoke pipeline is provided, insulating layer and steel outer casing are successively set on wearing layer from inside to outside, and the connecting limit device of multiple ring structures is equipped with along insulating layer length direction, it is evenly equipped with multiple groups positive stop strip on the inner wall of the steel outer casing and positive stop strip is arranged along the length direction of steel outer casing, it is adapted on the outside of connection and connecting limit device and is plugged in multiple groups positive stop strip with wearing layer on the inside of connecting limit device, and be connected as one steel outer casing, insulating layer and wearing layer by connecting limit device.The utility model inside insulating layer by being arranged the connecting limit device that can be connected as one outer shield steel plate, insulating layer and wearing layer, not only increase the structural strength of insulating layer itself, it can be imitated after outer shield steel plate, insulating layer and wearing layer associated connection and avoid fire resisting and thermal insulation material occurs the problem of fragmentation falls off because expanding with heat and contract with cold, be conducive to wearing layer and steel outer casing keeps Concentric rotation, guarantees the steady running of high-temperature furnace smoke pipeline long-term safety.

Description

Wear-resisting association type high-temperature furnace smoke pipeline

Technical field

The utility model belongs to high temperature furnace technical field, and in particular to a kind of wear-resisting association type high-temperature furnace smoke pipeline.

Background technique

It is frequently necessary to convey some high-temperature gases containing a large amount of dust, the flue gas highest temperature in metallurgy, electric power, cement industry Degree is up to 850 DEG C to 1100 DEG C or so, and dust content is high, and the conveying of this super high temperature flue gas is to the more demanding of pipeline, it is desirable that Smoke pipeline is wear-resisting, and heat insulation effect will be got well, and pipeline external surface temperature control is at 50 DEG C hereinafter, and the heatproof cast steel that uses in the market 1. pipeline is cast using nickel-chromium-rare earth alloy, manufacture installation is all more convenient, but the manufacturing cost of nickel-chromium-rare earth alloy is high It is expensive, it needs to carry out heat preservation production at the scene, service life is short；2. the pipeline with cooling water shell adding pipe, innermost layer and flue gas There is one layer of castable refractory in contact site, and then heatproof cast steel shell is stainless steel, and cast steel and stainless steel casing form a folder Package, water between cast steel and stainless steel by playing cooling effect, the advantage of this structure is can not have to outer heat insulation layer, And can also be heated cold water using high-temperature flue gas, the energy is realized in the effect utilized, the disadvantage is that composite material manufactures pipeline Expansion issues are difficult to solve, and operation stability is poor, wear-resistant castable often occur and fall off and the phenomenon that pipeline break, and structure Complexity, maintenance replacement are inconvenient；3. liner refractory casting pipe material, it is to pour that its structure type, which is internal layer with hot cigarette contact position, The advantages of material feeding, outer layer are insulating layers, and outermost layer is carbon steel, such structure is that cost is all lower than both the above, and uses the longevity It orders also longer than both the above structure type, the disadvantage is that the refractory casting bed of material has been grown using the time and will appear fragmentation and fall off, repairs Inconvenience, and the bad assurance of repair quality influence entire high-temperature furnace smoke pipeline system long-term safety steady running, for above-mentioned Problem, it is necessary to improve.

Utility model content

The technical problem solved by the utility model is:to provide a kind of wear-resisting association type high-temperature furnace smoke pipelines, by insulating layer The connecting limit device that outer shield steel plate, insulating layer and wearing layer can be connected as one by inside setting, not only increases heat preservation Structural strength of layer itself, can imitate after outer shield steel plate, insulating layer and wearing layer associated connection avoid fire resisting and thermal insulation material because It expands with heat and contract with cold and the problem of fragmentation falls off occurs, be conducive to wearing layer and steel outer casing keeps Concentric rotation, structure is simple, maintenance It is convenient, guarantee the steady running of high-temperature furnace smoke pipeline long-term safety.

The technical solution adopted in the utility model: wear-resisting association type high-temperature furnace smoke pipeline, including steel outer casing, insulating layer and Wearing layer, the insulating layer and steel outer casing are successively set on wearing layer from inside to outside, and are equipped with along insulating layer length direction The connecting limit device of multiple ring structures is evenly equipped with multiple groups positive stop strip on the inner wall of the steel outer casing and positive stop strip is along outer shield The length direction of steel pipe is arranged, and is adapted to inserting on the outside of connection and connecting limit device on the inside of the connecting limit device with wearing layer In in multiple groups positive stop strip, and steel outer casing, insulating layer and wearing layer are connected as one by connecting limit device.

Wherein, the connecting limit device includes multiple limited blocks and arc stiffener identical with limit number of blocks, institute Stating limited block is column construction made of heat-insulating material and through being fixed in insulating layer, and multiple arc stiffeners are along heat preservation Layer circumferencial direction is set in insulating layer and the arc stiffener both ends between two neighboring limited block and corresponding limited block Side wall is fixedly connected, and multiple limits swallow-tail form protrusion and be located at wearing layer outer circle wall are formed on the wearing layer outer circle wall Position block end is formed with the dovetail groove being adapted to swallow-tail form protrusion, and the swallow-tail form protrusion is adapted to connection with dovetail groove and limited block is another One end is inserted into corresponding one group of positive stop strip.

Further, the limited block is identical with arc stiffener quantity is equipped with 5.

Further, the insulating layer is that insulating brick along the circumferential direction splices the tubular structure assembled and tubular structure Insulating layer inside be equipped with improve insulating layer integral strength arc stiffener.

Further, the wearing layer is that thyrite is made and the swallow-tail form on wearing layer outer circle wall is raised With filling in the gap of dovetail groove by refractory mortar.

The utility model compared with prior art the advantages of:

1, outer shield steel plate, insulating layer and wearing layer can be connected as one by being arranged inside insulating layer by the technical program The connecting limit device of body, not only increases the structural strength and heat-proof quality of insulating layer itself, outer shield steel plate, insulating layer and resistance to It can be imitated after mill layer associated connection and avoid fire resisting and thermal insulation material occurs the problem of fragmentation falls off because expanding with heat and contract with cold, meanwhile, it adopts Wearing layer made of being fired with thyrite, intensity is big, and hardness is high, has good thermal shock resistance, antiacid caustic corrosion Property and inoxidizability, be not in operation fall off, fragmentation the problem of；

2, the ring structure that the technical program is formed after being connected adjacent limited block using multiple arcs stiffener connects On the one hand on the other hand outer shield steel plate, insulating layer and wearing layer are connected as one by the high intensity of insulating layer by limiting device Body, Concentric rotation can be kept in cold-hot condition by being conducive to wearing layer and steel outer casing；

3, the technical program optimizes the structure of high-temperature furnace smoke pipeline, improves the service life of high-temperature furnace smoke pipeline, knot Structure is simple, easy to maintenance, guarantees the steady running of high-temperature furnace smoke pipeline long-term safety.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model smoke pipeline cross section structure schematic diagram；

Fig. 3 is partial enlargement diagram at I in Fig. 2.

Specific embodiment

1-3 describes an embodiment of the present invention with reference to the accompanying drawing.

Wear-resisting association type high-temperature furnace smoke pipeline, including steel outer casing 1, insulating layer 2 and wearing layer 3, the insulating layer 2 and outer Shield steel pipe 1 is successively set on wearing layer 3 from inside to outside, and the connection of multiple ring structures is equipped with along 2 length direction of insulating layer Limiting device, be evenly equipped with multiple groups positive stop strip 4 on the inner wall of the steel outer casing 1 and positive stop strip 4 along steel outer casing 1 length direction Setting, the connecting limit device inside, which is adapted on the outside of connection and connecting limit device with wearing layer 3, is plugged in multiple groups positive stop strip 4 It is interior, and be connected as one steel outer casing 1, insulating layer 2 and wearing layer 3 by connecting limit device, by inside insulating layer 2 The connecting limit device that outer shield steel plate 1, insulating layer 2 and wearing layer 3 can be connected as one is set, insulating layer is not only increased 2 structural strengths and heat-proof quality itself can imitate after outer shield steel plate 1,3 associated connection of insulating layer 2 and wearing layer and avoid fire resisting And thermal insulation material occurs the problem of fragmentation falls off because expanding with heat and contract with cold, wherein insulating layer 2 uses lightweight clay insulating brick, diatom Any one material in native insulating brick, mullite insulating brick high alumina Mao Mozhuan or castable is made, and limited block 5 and arc Stiffener 6 is just as shown in Fig. 2, be embedded in inside insulating layer 2.

Specifically, the connecting limit device includes multiple limited blocks 5 and arc stiffener identical with 5 quantity of limited block 6, the limited block 5 for column construction made of heat-insulating material and through being fixed in insulating layer 2, reinforce by multiple arcs Item 6 be set in insulating layer 2 along 2 circumferencial direction of insulating layer and 6 both ends of arc stiffener positioned at two neighboring limited block 5 between and Corresponding 5 side wall of limited block is fixedly connected, and multiple swallow-tail form protrusions 7 are formed on 3 outer circle wall of wearing layer and are located at wear-resisting 5 end of limited block at 3 outer circle wall of layer is formed with the dovetail groove 8 being adapted to swallow-tail form protrusion 7, the swallow-tail form protrusion 7 and swallow In the connection of the adaptation of stern notch 8 and the corresponding one group of positive stop strip 4 of 5 other end of limited block insertion, wherein limited block 5 is by heat-insulating material system At column construction, the column construction as made of the heat-insulating materials material such as foam glass concrete, calcium silicates, perlite, limit On the one hand item 4 can limit the movement of limited block 5, to limit the rotation of wearing layer 3, on the other hand, it is ensured that wearing layer 3 and outer Shield steel plate 1 synchronizes equidirectional rotation；Specifically, the limited block 5 is identical with 6 quantity of arc stiffener to be equipped with 5, use is multiple The ring structure connecting limit device that arc stiffener 6 is formed after connecting adjacent limited block 5, on the one hand by height insulating layer Intensity, on the other hand, outer shield steel plate 1, insulating layer 2 and wearing layer 3 are connected as one, wearing layer 3 and outer shield steel are conducive to Pipe 1 can keep Concentric rotation in cold-hot condition, improve the stability of high-temperature furnace smoke pipeline operation, optimize high-temperature flue gas The structure of pipeline improves the service life of high-temperature furnace smoke pipeline, and structure is simple, easy to maintenance, guarantees high temperature boiler flue gas tube road length The operating of phase safety and stability.

Specifically, the insulating layer 2 is that insulating brick along the circumferential direction splices the tubular structure assembled and tubular structure Insulating layer 2 inside be equipped with improve 2 integral strength of insulating layer arc stiffener 6；Specifically, the wearing layer 3 is silicon carbide Ceramic material is made and is filled with refractory mortar in the swallow-tail form protrusion 7 on 3 outer circle wall of wearing layer and the gap of dovetail groove 8, The wearing layer 3 made of thyrite is fired, intensity is big, and hardness is high, has good thermal shock resistance, and antiacid alkali is rotten Corrosion and inoxidizability, be not in operation fall off, fragmentation the problem of.

Above-described embodiment, the only preferred embodiment of the utility model are not used to limit the utility model practical range, Therefore all equivalence changes done with content described in the utility model claims, the utility model claims model should all be included in Within enclosing.

Claims (5)

1. wear-resisting association type high-temperature furnace smoke pipeline, including steel outer casing (1), insulating layer (2) and wearing layer (3), it is characterised in that: The insulating layer (2) and steel outer casing (1) are successively set in from inside to outside on wearing layer (3), and along insulating layer (2) length direction Connecting limit device equipped with multiple ring structures is evenly equipped with multiple groups positive stop strip (4) on the inner wall of the steel outer casing (1) and limits Position item (4) is arranged along the length direction of steel outer casing (1), be adapted on the inside of the connecting limit device with wearing layer (3) connect and It is plugged on the outside of connecting limit device in multiple groups positive stop strip (4), and by connecting limit device by steel outer casing (1), insulating layer (2) It is connected as one with wearing layer (3).

2. wear-resisting association type high-temperature furnace smoke pipeline according to claim 1, it is characterised in that: the connecting limit device packet Multiple limited blocks (5) and arc stiffener (6) identical with limited block (5) quantity are included, the limited block (5) is heat-insulating material system At column construction and through being fixed in insulating layer (2), multiple arc stiffeners (6) are along insulating layer (2) circumferencial direction Arc stiffener (6) both ends in the insulating layer (2) and between two neighboring limited block (5) and corresponding limited block (5) side wall is fixedly connected, and multiple swallow-tail forms raised (7) are formed on wearing layer (3) outer circle wall and are located at wearing layer (3) outside Limited block (5) end at circumferential wall is formed with the dovetail groove (8) be adapted to swallow-tail form raised (7), the swallow-tail form raised (7) and It is interior that the connection of dovetail groove (8) adaptation and limited block (5) other end are inserted into corresponding one group of positive stop strip (4).

3. wear-resisting association type high-temperature furnace smoke pipeline according to claim 2, it is characterised in that: the limited block (5) and arc Shape stiffener (6) quantity is identical to be equipped with 5.

4. wear-resisting association type high-temperature furnace smoke pipeline according to claim 3, it is characterised in that: the insulating layer (2) is to protect Warm brick, which along the circumferential direction splices to be equipped with inside the insulating layer (2) of the tubular structure assembled and tubular structure, improves insulating layer (2) the arc stiffener (6) of integral strength.

5. wear-resisting association type high-temperature furnace smoke pipeline according to claim 1 or 2 or 3 or 4, it is characterised in that: described wear-resisting Layer (3) is that thyrite is made and between the swallow-tail form on wearing layer (3) outer circle wall raised (7) and dovetail groove (8) Refractory mortar is filled in gap.