CN104534499A - Coal spraying gun with combined high-temperature-resistant structure - Google Patents
Coal spraying gun with combined high-temperature-resistant structure Download PDFInfo
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- CN104534499A CN104534499A CN201410855344.0A CN201410855344A CN104534499A CN 104534499 A CN104534499 A CN 104534499A CN 201410855344 A CN201410855344 A CN 201410855344A CN 104534499 A CN104534499 A CN 104534499A
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Abstract
The invention discloses a coal spraying gun with a combined high-temperature-resistant structure, and belongs to the technical field of cement plant devices. The coal spraying gun is technically characterized by comprising a coal spraying gun body, a plurality of positioning bolts are distributed on the outer wall of the coal spraying gun body, and a high-temperature-resistant plaster layer is formed on the portion, on the periphery of the positioning bolts, of the coal spraying gun body through pouring; a high-temperature-resistant prefabricating layer and a ceramic wear-resistant layer are arranged on the periphery of the high-temperature-resistant plaster layer; the high-temperature-resistant prefabricating layer is composed of a plurality of high-temperature-resistant plaster prefabricated pieces, the ceramic wear-resistant layer is composed of a plurality of ceramic prefabricated pieces, the high-temperature-resistant plaster prefabricated pieces correspond to the ceramic prefabricated pieces one to one, positioning holes matched with the positioning bolts are formed in the high-temperature-resistant plaster prefabricated pieces and the ceramic prefabricated pieces respectively, and the high-temperature-resistant plaster prefabricated pieces and the ceramic prefabricated pieces are arranged on the corresponding positioning bolts in a penetrating mode and fixedly connected with the positioning bolts in a threaded mode through high-temperature-resistant fasteners. The coal spraying gun is convenient to use and good in effect and used for producing cement.
Description
Technical field
The present invention relates to a kind of coal powder lance, more particularly, particularly relate to a kind of coal powder lance with combined type high-temperature-resistant structure.
Background technology
Cement needs in process of production through high-temperature calcination, and the fuel requirement producing high temperature is delivered in cement kiln by coal injection pipe, because cement kiln temperature is higher, coal injection pipe work under bad environment, therefore coal injection pipe front end needs to stretch on the position outer wall in kiln and is all cast with high-temperature plastic mud layer, to ensure the normal work of coal injection pipe.But because kiln temperature is higher, kiln flame and high-temperature dust etc. do not stop to wash away high-temperature plastic mud layer, in use for some time, high-temperature plastic mud layer local just there will be breakage, once there is breakage, repairs with regard to needs.And due to high-temperature plastic mud layer be integrated pouring, during reparation, just need to remove the high-temperature plastic mud layer of failure area, and then it is again integrated poured, not only cause the significant wastage of high-temperature plastic mud material, and from repair and can normally work to equipment, whole process at least needs the time, has a strong impact on the normal work of enterprise.
Summary of the invention
The object of the invention is to for above-mentioned the deficiencies in the prior art, a kind of easy to use, respond well coal powder lance with combined type high-temperature-resistant structure is provided.
Technical scheme of the present invention is achieved in that a kind of coal powder lance with combined type high-temperature-resistant structure, comprise coal powder lance body, coal powder lance body outer wall is distributed with some positioning studs, has high-temperature plastic mud layer at the coal powder lance body upper of positioning stud periphery; High-temp resistance prefabricated layer and ceramic wearing coat is sequentially provided with from the inside to the outside in high-temperature plastic mud layer periphery; Described high-temp resistance prefabricated layer is made up of the high temperature resistant clay prefabricated component that some pieces are sequentially laid, described ceramic wearing coat is made up of the ceramic preform that some pieces are sequentially laid, high temperature resistant clay prefabricated component and ceramic preform one_to_one corresponding and be respectively equipped with the locating hole adapted with positioning stud on high temperature resistant clay prefabricated component and ceramic preform, high temperature resistant clay prefabricated component and ceramic preform to be located on corresponding positioning stud and to be threaded with positioning stud fixing by high temperature resistant securing member.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, the thickness of described high-temperature plastic mud layer is 4-6cm; The thickness of high-temp resistance prefabricated layer and ceramic wearing coat is 1/2nd of high-temperature plastic mud layer thickness.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, between high-temperature plastic mud layer and high-temp resistance prefabricated layer, be folded with the cotton layer of high-temperature fibre.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, described high temperature resistant securing member is made up of integrated ceramic caps and ceramic swivel nut; Pottery swivel nut is threaded with positioning stud, is provided with interior hexagonal counterbore, is provided with the deep gouge adapted with ceramic caps in ceramic preform upper surface in ceramic caps upper surface.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, between the high temperature resistant securing member locating hole corresponding with on ceramic preform and deep gouge, be provided with high temperature resistant locating glue mud layer.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, in the locating hole on ceramic preform and ceramic swivel nut periphery is equipped with positioning threads; Annular positioning groove is equipped with bottom deep gouge inner bottom part and ceramic caps.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, high temperature resistant clay prefabricated component end face is circumferentially inclined-plane, the end face at adjacent high temperature resistant clay prefabricated component edge coordinates splay first blind of formation, is filled with the first high temperature resistant clay in the first blind.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, ceramic preform end face is circumferentially inclined-plane, and the end face at adjacent ceramic prefabricated component edge coordinates splay second blind of formation, is filled with the second high temperature resistant clay in the second blind.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, be provided with at each high temperature resistant clay prefabricated component and ceramic preform edge the locating convex block and/or locating notch that cooperatively interact.
In the above-mentioned coal powder lance with combined type high-temperature-resistant structure, the cross section of high temperature resistant clay prefabricated component and ceramic preform is arc, and the radian of arc is 60-90 °.
After the present invention adopts said structure, first by coal powder lance body cast high-temperature plastic mud layer, then high-temp resistance prefabricated layer and the ceramic wearing coat of detachable replacing are sequentially set from the inside to the outside at high-temperature plastic mud layer outward.Like this, identical with the high-temperature-resistant layer of existing integrated pouring at the whole high-temperature-resistant structure thickness of guarantee, under effectively can playing the prerequisite of protection coal powder lance object, further increase utilization rate and the service life of high-temperature-resistant layer.Meanwhile, limit the relation between the thickness of high-temperature plastic mud layer and high-temp resistance prefabricated layer and ceramic wear-resisting layer thickness, like this, can improve the utilization rate of prefabricated component to greatest extent, component wear only needs to change thinner one piece in surface.Further, for convenience of location and the handling of whole preform layer, adopt the structure location that locating convex block and/or locating notch coordinate between each prefabricated component, and adopt positioning stud to coordinate the mode of high temperature resistant securing member and high temperature resistant clay to be fixed.Adopt coal powder lance of the present invention, when high-temperature-resistant layer occurs that damage needs to change, only need to spend the short period to carry out reparation to failure area and again to drop into.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but do not form any limitation of the invention.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the sectional structure schematic diagram at A-A place in Fig. 1;
Fig. 3 is the plan structure schematic diagram of Fig. 1;
Fig. 4 is the close-up schematic view at B place in Fig. 2.
In figure: coal powder lance body 1, positioning stud 2, high-temperature plastic mud layer 3, high temperature resistant clay prefabricated component 4, ceramic preform 5, locating hole 6, high temperature resistant securing member 7, ceramic caps 7a, pottery swivel nut 7b, the cotton layer 8 of high-temperature fibre, interior hexagonal counterbore 9, deep gouge 10, high temperature resistant locating glue mud layer 11, positioning threads 12, annular positioning groove 13, first blind 14, first high temperature resistant clay 15, second blind 16, second high temperature resistant clay 17, locating convex block 18, locating notch 19.
Detailed description of the invention
Consult shown in Fig. 1 to Fig. 4; a kind of coal powder lance with combined type high-temperature-resistant structure of the present invention; comprise coal powder lance body 1; coal powder lance body 1 outer wall is distributed with some positioning studs 2; high-temperature plastic mud layer 3 is had at coal powder lance body 1 upper of positioning stud 2 periphery; the thickness of high-temperature plastic mud layer 3 is 4-6cm, and high-temperature plastic mud layer 3 plays the good action of protection coal powder lance body 1 in use.High-temp resistance prefabricated layer and ceramic wearing coat is sequentially provided with from the inside to the outside in high-temperature plastic mud layer 3 periphery.High-temp resistance prefabricated layer is made up of the high temperature resistant clay prefabricated component 4 that some pieces are sequentially laid, high temperature resistant clay prefabricated component 4 end face is circumferentially inclined-plane, the end face at adjacent high temperature resistant clay prefabricated component 4 edge coordinates splay first blind 14 of formation, is filled with the first high temperature resistant clay 15 in the first blind 14.Described ceramic wearing coat is made up of the some pieces of ceramic preform sequentially laid 5, is provided with the deep gouge 10 adapted with ceramic caps 7a in ceramic preform 5 upper surface, is provided with annular positioning groove 13 at deep gouge 10 inner bottom part.Ceramic preform 5 end face is circumferentially inclined-plane, and the end face at adjacent ceramic prefabricated component 5 edge coordinates splay second blind 16 of formation, is filled with the second high temperature resistant clay 17 in the second blind 16.The blind of this structure, even if there is certain extendable room between adjacent two blocks of prefabricated components, prevent the damage causing prefabricated component due to high-temperature expansion, can effectively be fixed high temperature resistant clay again, even if loosening appears in the high temperature resistant clay in blind, also can not come off in blind easily, effectively extend the service life of high temperature resistant clay.In addition, in the first blind 14 and the second blind 16, also can fill other castable of this area routine.The cross section of high temperature resistant clay prefabricated component 4 and ceramic preform 5 is arc, and preferably, the radian of arc is 60-90 °, adopts this structure, and both convenient installation, can improve again the utilization rate of high temperature resistant clay prefabricated component 4 and ceramic preform 5.
Simultaneously, the thickness of high-temp resistance prefabricated layer and ceramic wearing coat is 1/2nd of high-temperature plastic mud layer 3 thickness, and high-temp resistance prefabricated layer and ceramic wearing coat mainly play the effect of protection high-temperature plastic mud layer 3, adopt the structure of suitable thickness, while being beneficial to production, save a large amount of costs; Between high-temperature plastic mud layer 3 and high-temp resistance prefabricated layer, be folded with the cotton layer 8 of high-temperature fibre, the cotton layer 8 of high-temperature fibre plays heat insulation effect.
Further, the locating convex block 18 and/or locating notch 19 that cooperatively interact is provided with at each high temperature resistant clay prefabricated component 4 and ceramic preform 5 edge, concrete fit system is determined on a case-by-case basis, the edge of each prefabricated component can arrange in locating convex block 18 and locating notch 19 simultaneously, also can be locating convex block 18 or be locating notch 19, adopt this structure, mainly facilitate each prefabricated component location when mounted, improve installation effectiveness.
Further, high temperature resistant clay prefabricated component 4 and ceramic preform 5 one_to_one corresponding and on high temperature resistant clay prefabricated component 4 and ceramic preform 5, be respectively equipped with the locating hole 6 adapted with positioning stud 2, be provided with positioning threads 12 in the locating hole 6 on ceramic preform 5; High temperature resistant clay prefabricated component 4 and ceramic preform 5 to be located on corresponding positioning stud 2 and to be threaded fixing by high temperature resistant securing member 7 with positioning stud 2.High temperature resistant locating glue mud layer 11 is provided with between high temperature resistant securing member 7 locating hole 6 corresponding with on ceramic preform 5 and deep gouge 10.High temperature resistant securing member 7 is made up of integrated ceramic caps 7a and ceramic swivel nut 7b; Pottery swivel nut 7b is threaded with positioning stud 2, outside ceramic swivel nut 7b, be arranged with positioning threads 12; Be provided with interior hexagonal counterbore 9 in ceramic caps 7a upper surface, be provided with annular positioning groove 13 bottom ceramic caps 7a, positioning threads 12 and annular positioning groove 13 are the shape of thread, play the effect preventing high temperature resistant locating glue mud layer 11 from coming off.
During use, first according to the specification of each prefabricated component, coal powder lance body 1 outer wall welds positioning stud 2, then integrated poured high-temperature plastic mud layer 3 on coal powder lance body 1 outer wall, after high-temperature plastic mud layer 3 is shaping, lays the cotton layer 8 of high-temperature fibre, more high temperature resistant clay prefabricated component 4 is set on corresponding positioning stud 2, insert the first high temperature resistant clay 15 in the first blind 14, form high-temp resistance prefabricated layer; Then ceramic preform 5 is set on corresponding positioning stud 2; high temperature resistant locating glue mud layer 11 is preset in locating hole 6 on ceramic preform 5 and deep gouge 10; then being rotated by high temperature resistant securing member 7 clamp-ons in deep gouge 10; fixing two-layer preform layer is coordinated with positioning stud 2 by high temperature resistant securing member 7; fix by high temperature resistant locating glue mud layer 11 and protect high temperature resistant securing member 7 simultaneously; finally in the second blind 16, insert the second high temperature resistant clay 17, form ceramic wearing coat.
In use for some time, when the high temperature resistant clay prefabricated component 4 on coal powder lance outer wall and/or ceramic preform 5 are damaged, can back out high temperature resistant securing member 7, change the prefabricated component damaged, in the blind of correspondence, again insert high temperature resistant clay can come into operation again.The present invention effectively extends the service life of coal powder lance, save considerably the cost of manufacture of cement simultaneously.
Above illustrated embodiment is better embodiment of the present invention, only be used for conveniently the present invention being described, not any pro forma restriction is done to the present invention, have in any art and usually know the knowledgeable, if do not depart from the present invention carry in the scope of technical characteristic, utilize the Equivalent embodiments that the done local of disclosed technology contents is changed or modified, and do not depart from technical characteristic content of the present invention, all still belong in the scope of the technology of the present invention feature.
Claims (10)
1. the coal powder lance with combined type high-temperature-resistant structure, comprise coal powder lance body (1), it is characterized in that, coal powder lance body (1) outer wall is distributed with some positioning studs (2), and coal powder lance body (1) upper peripheral at positioning stud (2) has high-temperature plastic mud layer (3), high-temp resistance prefabricated layer and ceramic wearing coat is sequentially provided with from the inside to the outside in high-temperature plastic mud layer (3) periphery, described high-temp resistance prefabricated layer is made up of the high temperature resistant clay prefabricated component (4) that some pieces are sequentially laid, described ceramic wearing coat is made up of the some pieces of ceramic preform sequentially laid (5), high temperature resistant clay prefabricated component (4) and ceramic preform (5) one_to_one corresponding and on high temperature resistant clay prefabricated component (4) and ceramic preform (5), be respectively equipped with the locating hole (6) adapted with positioning stud (2), high temperature resistant clay prefabricated component (4) and ceramic preform (5) are located in corresponding positioning stud (2) and go up and pass through high temperature resistant securing member (7) and be threaded fixing with positioning stud (2).
2. the coal powder lance with combined type high-temperature-resistant structure according to claim 1, is characterized in that, the thickness of described high-temperature plastic mud layer (3) is 4-6cm; The thickness of high-temp resistance prefabricated layer and ceramic wearing coat is 1/2nd of high-temperature plastic mud layer (3) thickness.
3. the coal powder lance with combined type high-temperature-resistant structure according to claim 1, is characterized in that, is folded with the cotton layer (8) of high-temperature fibre between high-temperature plastic mud layer (3) and high-temp resistance prefabricated layer.
4. the coal powder lance with combined type high-temperature-resistant structure according to claim 1, is characterized in that, described high temperature resistant securing member (7) is made up of integrated ceramic caps (7a) and ceramic swivel nut (7b); Pottery swivel nut (7b) is threaded with positioning stud (2), be provided with interior hexagonal counterbore (9) in ceramic caps (7a) upper surface, be provided with the deep gouge (10) adapted with ceramic caps (7a) in ceramic preform (5) upper surface.
5. the coal powder lance with combined type high-temperature-resistant structure according to claim 4, it is characterized in that, between the upper corresponding locating hole (6) of high temperature resistant securing member (7) and ceramic preform (5) and deep gouge (10), be provided with high temperature resistant locating glue mud layer (11).
6. the coal powder lance with combined type high-temperature-resistant structure according to claim 5, it is characterized in that, in the locating hole (6) on ceramic preform (5) and ceramic swivel nut (7b) periphery is equipped with positioning threads (12); Annular positioning groove (13) is equipped with at deep gouge (10) inner bottom part and ceramic caps (7a) bottom.
7. the coal powder lance with combined type high-temperature-resistant structure according to claim 1, it is characterized in that, high temperature resistant clay prefabricated component (4) end face is circumferentially inclined-plane, the end face at adjacent high temperature resistant clay prefabricated component (4) edge coordinates splay first blind (14) of formation, is filled with the first high temperature resistant clay (15) in the first blind (14).
8. the coal powder lance with combined type high-temperature-resistant structure according to claim 1 or 7, it is characterized in that, ceramic preform (5) end face is circumferentially inclined-plane, the end face at adjacent ceramic prefabricated component (5) edge coordinates splay second blind (16) of formation, is filled with the second high temperature resistant clay (17) in the second blind (16).
9. the coal powder lance with combined type high-temperature-resistant structure according to claim 1 or 7, it is characterized in that, be provided with the locating convex block (18) and/or locating notch (19) that cooperatively interact each high temperature resistant clay prefabricated component (4) and ceramic preform (5) edge.
10. the coal powder lance with combined type high-temperature-resistant structure according to claim 1, is characterized in that, the cross section of high temperature resistant clay prefabricated component (4) and ceramic preform (5) is arc, and the radian of arc is 60-90 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410855344.0A CN104534499B (en) | 2014-12-30 | 2014-12-30 | Coal powder lance with combination type high-temperature-resistant structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410855344.0A CN104534499B (en) | 2014-12-30 | 2014-12-30 | Coal powder lance with combination type high-temperature-resistant structure |
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| CN104534499A true CN104534499A (en) | 2015-04-22 |
| CN104534499B CN104534499B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410855344.0A Expired - Fee Related CN104534499B (en) | 2014-12-30 | 2014-12-30 | Coal powder lance with combination type high-temperature-resistant structure |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816768A1 (en) * | 1978-04-18 | 1979-10-25 | Ruhrkohle Ag | COAL COMBUSTION |
| CN2508118Y (en) * | 2001-11-28 | 2002-08-28 | 吴亦安 | Arch wear-resistant corundun ceramic lining boiler burner tube |
| CN1715238A (en) * | 2005-01-18 | 2006-01-04 | 陈海渊 | Corundum ceramic wear-resistance lining plate structure module and its wear-resistance corundum ceramic block |
| CN2771617Y (en) * | 2005-01-18 | 2006-04-12 | 陈海渊 | Corundum ceramic anti-wear lining structure assembly |
| CN201462881U (en) * | 2009-07-30 | 2010-05-12 | 四川利森建材集团有限公司 | Cement kiln pulverized coal burner |
| CN202647834U (en) * | 2012-07-02 | 2013-01-02 | 魏伯卿 | Long heat-resistant oxygen-enriched combustion-supporting spray gun for rotary kiln |
| CN204007137U (en) * | 2014-08-26 | 2014-12-10 | 长兴兴鹰新型耐火建材有限公司 | Combination preformed bricks for the reducing of a kind of cement kiln smoke-box |
| CN204358762U (en) * | 2014-12-30 | 2015-05-27 | 广东梅雁吉祥水电股份有限公司 | A kind of coal powder lance with combined type high-temperature-resistant structure |
-
2014
- 2014-12-30 CN CN201410855344.0A patent/CN104534499B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816768A1 (en) * | 1978-04-18 | 1979-10-25 | Ruhrkohle Ag | COAL COMBUSTION |
| CN2508118Y (en) * | 2001-11-28 | 2002-08-28 | 吴亦安 | Arch wear-resistant corundun ceramic lining boiler burner tube |
| CN1715238A (en) * | 2005-01-18 | 2006-01-04 | 陈海渊 | Corundum ceramic wear-resistance lining plate structure module and its wear-resistance corundum ceramic block |
| CN2771617Y (en) * | 2005-01-18 | 2006-04-12 | 陈海渊 | Corundum ceramic anti-wear lining structure assembly |
| CN201462881U (en) * | 2009-07-30 | 2010-05-12 | 四川利森建材集团有限公司 | Cement kiln pulverized coal burner |
| CN202647834U (en) * | 2012-07-02 | 2013-01-02 | 魏伯卿 | Long heat-resistant oxygen-enriched combustion-supporting spray gun for rotary kiln |
| CN204007137U (en) * | 2014-08-26 | 2014-12-10 | 长兴兴鹰新型耐火建材有限公司 | Combination preformed bricks for the reducing of a kind of cement kiln smoke-box |
| CN204358762U (en) * | 2014-12-30 | 2015-05-27 | 广东梅雁吉祥水电股份有限公司 | A kind of coal powder lance with combined type high-temperature-resistant structure |
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