CN201858661U - Compensated metal anchoring screw - Google Patents
Compensated metal anchoring screw Download PDFInfo
- Publication number
- CN201858661U CN201858661U CN201020591115XU CN201020591115U CN201858661U CN 201858661 U CN201858661 U CN 201858661U CN 201020591115X U CN201020591115X U CN 201020591115XU CN 201020591115 U CN201020591115 U CN 201020591115U CN 201858661 U CN201858661 U CN 201858661U
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- screw
- furnace wall
- claws
- shanks
- bent
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- Expired - Fee Related
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Abstract
The utility model relates to a compensated metal anchoring screw which is characterized in that: the metal anchoring screw is made of round steel and bent into a Y shape; the metal anchoring screw comprises two screw shanks side by side; the lower ends of the screw shanks are provided with a connecting base; the connecting base is bent to one sides of the screw shanks; the upper ends of the screw shanks are respectively screw claws bent to the two sides; and the upper parts of the screw claws and the screw shanks are corrugated. The compensated metal anchoring screw has the following characteristics: as the upper parts of the screw claws and the screw shanks are bent to be corrugated, the expansion coefficient in the length direction is effectively reduced, thereby reducing damage of heat expansion of the anchoring screw to refractory materials of a furnace wall, avoiding the cracking and even flaking of the refractory materials of the furnace wall, prolonging the service life of a furnace body and reducing the maintenance cost; in addition, plastic sleeves are respectively sheathed at the top ends of the two screw claws, thereby further preventing the refractory materials of the furnace wall outside the anchoring screw from being jacked and damaged due to heat expansion of the anchoring screw; as the double-shank structure is adopted, the supporting force of the refractory materials of the furnace wall is multiplied and the furnace wall can be supported more stably.
Description
Technical field
The utility model relates to a kind of supporting member of furnace lining, especially relates to a kind of compensation metal anchor studs, is used for inner lining refractory fixing that rubbish burns stove and CFBB, also can be used for inner lining refractory fixing of other stoves, kiln etc.
Background technology
The technology that rubbish burns stove and CFBB is the clean burning technology of generally acknowledging at present, and is because the combustion system of incinerator and CFBB is more special, also very high to the requirement of refractory material.The incinerator burning feature: refuse thermal value is low, moisture content is high, complicated sealing and the corrosion resistance to fire-resistant furnace wall of composition has relative higher requirement, if fire-resistant furnace wall crackle occurs or peels off, certainly will cause furnace wall to leak out seriously, metalwork in the body of wall is caused corrosion, thereby influence overall tightness, stability, the security of furnace wall body.The burning in circulating fluid bed boiler characteristics: combustion adaptive is extensive, is mainly used in burned coal gangue, ash concentration height during owing to the fluidized-bed combustion boiler operation, and flow velocity is fast, so the scouring force to the furnace wall body is stronger in the combustion process, can cause serious corrosion of body of wall and damage.Above-mentioned two kinds of incinerators and CFBB require just high especially to the metal anchorage in the furnace wall.Yet usually fixedly the furnace wall refractory material be V-arrangement or Y shape anchor studs, anchor studs is made by metal material, the back thermal coefficient of expansion that is heated is bigger, refractory material belongs to nonmetal, the coefficient of expansion was smaller after it was heated, therefore easily cause the cracking of furnace wall refractory material even peel off, thereby influence overall tightness, stability, the security of furnace wall body.The present problem that differs for fear of metal and nonmetallic expansion, the general method that adopts anchor studs brush pitch, require the bituminous coating of brush 3 millimeters thick, but the method can not be from deal with problems at all, only can reduce the influence of being radially expanded of anchor studs to refractory material, the axial expansion of anchor studs is bigger usually, can't solve by bituminous coating.
The utility model content
The applicant has carried out research and has improved at above-mentioned problem, and a kind of compensation metal anchor studs is provided, reduce of the influence of anchor studs expanded by heating to the furnace wall refractory material, avoid the cracking of furnace wall refractory material even peel off the service life of prolongation body of heater, reduction maintenance cost.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of compensation metal anchor studs is bent into Y shape by round steel, comprises two nail bars arranged side by side, and the lower end of nail bar is provided with the connection base, connects the side of base bending to the nail bar, and the upper end of nail bar is respectively to the tack claw of both sides bending; The top of described tack claw and nail bar is corrugated.
Further:
The top of described two tack claws is with plastic sheath respectively.
The wall thickness of described plastic sheath is between the 2-3 millimeter.
Angle between described two tack claws is between 45 °～120 °.
Angle between described two tack claws is 60 °.
Technique effect of the present utility model is:
The disclosed a kind of compensation metal anchor studs of the utility model, the top of its tack claw and nail bar is bent into corrugated, effectively reduce the coefficient of expansion of length direction, thereby reduce of the damage of anchor studs expanded by heating to the furnace wall refractory material, avoid the cracking of furnace wall refractory material even peel off, prolong the service life of body of heater, reduce maintenance cost; Simultaneously, two plastic sheaths that the tack claw top puts further make the outer furnace wall refractory material of anchor studs not bad by anchor studs expanded by heating top; Adopt double-rod structure, the support force of furnace wall refractory material is multiplied, better the firm support furnace wall.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
As shown in Figure 1, 2, 3, the utility model is bent into Y shape by round steel, comprise two nail bars 1 arranged side by side, the lower end of nail bar 1 is provided with and connects base 2, connect the side of base 2 bendings to nail bar 1, the upper end of nail bar 1 be respectively to the tack claw 3 of both sides bending, and tack claw 3 and the top of following closely bar 1 are bent into corrugated.The top of two tack claws 3 is with plastic sheath 4 respectively, and plastic sheath 4 is made by low-melting plastics, and the wall thickness of plastic sheath 4 is between 2～3 millimeters.The best practical range of the included angle A between two tack claws 3 is usually 45.～120。Between, in the present embodiment, the included angle A between two tack claws is 60 °.The utility model is formed by the bending of stainless steel round steel one usually.
In actual use, the utility model is welded on outer protecting on the steel plate by connecting base, in order to fixed support furnace wall refractory material, burns on the refractory casting furnace wall of stove and CFBB the support as furnace wall at rubbish.The top of tack claw 3 of the present utility model and nail bar 1 is bent into corrugated, make anchor studs under heating status, change the expansion of its length direction, make it segmentation and expand, effectively reduce the coefficient of expansion of length direction, thereby reduce of the damage of anchor studs expanded by heating the furnace wall refractory material.Simultaneously, two tack claw 3 tops of anchor studs are with plastic sheath 4, further make the outer furnace wall refractory material of anchor studs not bad by anchor studs expanded by heating top.The utility model is applied to the indefinite form of incinerator and CFBB and burns the notes furnace wall, and the use on the particularly adiabatic furnace wall can significantly improve the service life that indefinite form is poured into a mould furnace wall, reduces maintenance cost.
Claims (5)
1. compensation metal anchor studs is characterized in that: be bent into Y shape by round steel, comprise two nail bars arranged side by side, the lower end of nail bar is provided with the connection base, connects the side of base bending to the nail bar, and the upper end of nail bar is respectively to the tack claw of both sides bending; The top of described tack claw and nail bar is corrugated.
2. according to the described compensation metal anchor studs of claim 1, it is characterized in that: the top of described two tack claws is with plastic sheath respectively.
3. according to the described compensation metal anchor studs of claim 2, it is characterized in that: the wall thickness of described plastic sheath is between the 2-3 millimeter.
4. according to the described compensation metal anchor studs of claim 1, it is characterized in that: the angle between described two tack claws is between 45 °～120 °.
5. according to the described compensation metal anchor studs of claim 4, it is characterized in that: the angle between described two tack claws is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020591115XU CN201858661U (en) | 2010-11-04 | 2010-11-04 | Compensated metal anchoring screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020591115XU CN201858661U (en) | 2010-11-04 | 2010-11-04 | Compensated metal anchoring screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858661U true CN201858661U (en) | 2011-06-08 |
Family
ID=44104466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020591115XU Expired - Fee Related CN201858661U (en) | 2010-11-04 | 2010-11-04 | Compensated metal anchoring screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858661U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374784A (en) * | 2011-10-25 | 2012-03-14 | 长兴兴鹰新型耐火建材有限公司 | Wear-resistant prefabricated brick for cement-kiln grate-cooler low wall |
| CN103063031A (en) * | 2013-02-05 | 2013-04-24 | 广西鱼峰水泥股份有限公司 | Anchoring part |
-
2010
- 2010-11-04 CN CN201020591115XU patent/CN201858661U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374784A (en) * | 2011-10-25 | 2012-03-14 | 长兴兴鹰新型耐火建材有限公司 | Wear-resistant prefabricated brick for cement-kiln grate-cooler low wall |
| CN103063031A (en) * | 2013-02-05 | 2013-04-24 | 广西鱼峰水泥股份有限公司 | Anchoring part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20181104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |