CN202835413U - Cement kiln coal injection nozzle thermal protection tile and components thereof - Google Patents
Cement kiln coal injection nozzle thermal protection tile and components thereof Download PDFInfo
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- CN202835413U CN202835413U CN 201220178851 CN201220178851U CN202835413U CN 202835413 U CN202835413 U CN 202835413U CN 201220178851 CN201220178851 CN 201220178851 CN 201220178851 U CN201220178851 U CN 201220178851U CN 202835413 U CN202835413 U CN 202835413U
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- heat
- proof tile
- proof
- cement kiln
- thermal protection
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- 239000003245 coal Substances 0.000 title claims abstract description 71
- 238000002347 injection Methods 0.000 title claims abstract description 71
- 239000007924 injection Substances 0.000 title claims abstract description 71
- 239000004568 cement Substances 0.000 title claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims description 32
- 235000015111 chews Nutrition 0.000 claims description 14
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008961 swelling Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 239000011819 refractory material Substances 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 230000006378 damage Effects 0.000 description 6
- 230000008646 thermal stress Effects 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001055 chewing effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004901 spalling Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Moulds, Cores, Or Mandrels (AREA)
Abstract
The utility model discloses a cement kiln coal injection nozzle thermal protection tile and components thereof. The cement kiln coal injection nozzle thermal protection tile comprises a first thermal protection tile unit, a second thermal protection tile unit and a third thermal protection tile unit, wherein cross sections of three thermal protection tile units are circular-arc-shaped, the three thermal protection tile units are mutually connected in a split joint mode and covered on the exterior of a steel core of a coal injection nozzle, and each thermal protection tile unit is provided with at least two installation holes with fixed gaps. The three thermal protection tile units are fixed on the steel core of the coal injection nozzle through bolts which penetrate through the installation holes, and the three thermal protection tile units are made of Theron ceramics. The thermal protection tile is made of the Theron ceramics, so that the problem that the thermal protection tile is damaged due to the fact that the thermal protection tile is easily affected by cement clinker particles is solved, and due to the fact that the three thermal protection tile units which share the same shapes and are of a circular-arc-shaped structure are adopted to be combined to use, and a swelling gap is reserved between the bolts and the thermal protection tile, the influence of internal stress on the thermal protection tile of the coal injection nozzle is effectively prevented, and the internal stress is caused by thermal swelling of the steel core of the coal injection nozzle.
Description
Technical field
The utility model relates to cement kiln plant equipment field, relates in particular to a kind of cement kiln coal injection and chews heat-proof tile and assembly thereof.
Background technology
It is one of the shortest position of this cement kiln life-span that the cement rotary kiln coal powder injection is chewed.Coal powder injection is chewed the direct radiation of refractory material shell flame in being subject to kiln of head, also will be subject to washing away of high temperature gas flow in the kiln, and high temperature gas flow carries that the grog fine grained corrodes and wearing and tearing, and from the powerful expansion pulling force effect of inside.Very abominable because of operating mode, rate of decay is very fast, usually because of coal powder injection chew the surface refractory material cracking, peel off and the rear damage that weathers affects the production of cement kiln.
At present, cement kiln coal injection is chewed the structure that adopts unshape refractory parcel steel inner core.On the one hand, the thermal coefficient of expansion of steel is that 14-16 * 10-6/ ℃, the thermal coefficient of expansion of refractory material are 6-8 * 10-6/ ℃, and the steel inner core is swelling state to the refractory material shell.The bulging of steel inner core will cause refractory material shell cracking and peel off like this.On the other hand, it is the sa refractory material that shell is chewed in coal powder injection, and clinker is calcium ferrosilicon based material, and the clinker fine particle that flies up will react with refractory material, forms the eutectic phase, makes the refractory material grog particulate that can bond, and forms incrustation.Along with the development of incrustation, no matter be to form a scab to be caving voluntarily, or manually disclosed, all can tear a part of refractory material, thereby cause the loss of shell wadding and shorten the life-span that coal powder injection is chewed.
The utility model content
The purpose of this utility model is to propose a kind of cement kiln coal injection and chews heat-proof tile, can reduce the thermal stress of steel inner core to the impact of heat-proof tile, and clinker reaches the purpose that the prolongation cement kiln coal injection is chewed the service life of heat-proof tile to the damage to heat-proof tile.
For reaching this purpose, the utility model by the following technical solutions:
A kind of cement kiln coal injection is chewed heat-proof tile, comprising: the first heat-proof tile unit, the second heat-proof tile unit and the 3rd heat-proof tile unit, and the cross section of described three heat-proof tile unit is circular arc;
The installing hole that all has at least two determining deviations on each heat-proof tile unit, described installing hole comprise that under the hole and installing hole the hole on the installing hole, and the diameter in hole is greater than the diameter in hole under the installing hole on the described installing hole;
Described three heat-proof tile unit are made by the Sialon pottery.
Chew a preferred version of heat-proof tile as above-mentioned cement kiln coal injection, the corresponding central angle in described first, second, and third heat-proof tile unit is 120 °.
Chew a preferred version of heat-proof tile as above-mentioned cement kiln coal injection, the two ends of described first, second, and third heat-proof tile unit are equipped with the stair-stepping bite that cooperatively interacts.
Chew a preferred version of heat-proof tile as above-mentioned cement kiln coal injection, the Inner emargination arc that the Inner edge that the bite at the two ends of described the first heat-proof tile unit is heat-proof tile is recessed to form to the outer rim direction of heat-proof tile; The outer rim concave arc that the outer rim that the bite of described the second heat-proof tile unit is heat-proof tile is recessed to form to the Inner edge direction of heat-proof tile; Described the 3rd heat-proof tile unit one end has Inner emargination arc, and its other end has the outer rim concave arc.
Chew a preferred version of heat-proof tile as above-mentioned cement kiln coal injection, described Inner emargination arc is identical with the shape of described outer rim concave arc.
Chew a preferred version of heat-proof tile as above-mentioned cement kiln coal injection, described Inner emargination arc internal diameter identical with the internal diameter of described heat-proof tile, the external diameter of described Inner emargination arc is identical with the mean value of the internal diameter of described heat-proof tile and external diameter; The internal diameter of described outer rim concave arc is identical with the mean value of the internal diameter of described heat-proof tile and external diameter, and the external diameter of described outer rim concave arc is identical with the external diameter of described heat-proof tile.
Chew a preferred version of heat-proof tile as above-mentioned cement kiln coal injection, described Sialon pottery chief component element is silicon, aluminium, oxygen and nitrogen, be the solid solution of silicon nitride Si3N4 and aluminium oxide Al 2O3, basic structural unit is (Si, Al) (O, N) tetrahedron.
A kind of cement kiln coal injection is chewed heat-proof tile and assembly thereof, comprise that coal powder injection chews steel core, screw, ceramic gasket and mutually splice and be wrapped in three heat-proof tile unit that the steel core outside is chewed in described coal powder injection, these three heat release watt unit are the first heat-proof tile unit, the second heat-proof tile unit and the 3rd heat-proof tile unit, and the cross section of described three heat-proof tile unit is circular arc; The installing hole that all has at least two determining deviations on each heat-proof tile unit, described installing hole comprise that under the hole and installing hole the hole on the installing hole, and the diameter in hole is greater than the diameter in hole under the installing hole on the described installing hole; Described three heat-proof tile unit are made by the Sialon pottery; Described three heat-proof tile unit all are fixed on the steel core that coal powder injection chews by the screw that passes installing hole, are provided with described ceramic gasket between the nut of described screw and the described heat-proof tile unit;
Chew a preferred version of heat-proof tile as above-mentioned cement kiln coal injection, the nut of described screw and the diameter of described ceramic gasket are less than the aperture in hole on the installing hole, and the screw rod of described screw is less than the aperture in hole under the described installing hole.
Chew a preferred version of heat-proof tile as above-mentioned cement kiln coal injection, the end that described installing hole is exposed in the cement kiln is filled with unshape refractory.
The beneficial effects of the utility model are: the utility model provides a kind of cement kiln coal injection to chew heat-proof tile, by adopting three block-shaped identical convex structure heat-proof tile unit combination to use and between screw and heat-proof tile, having reserved the expansion clearance, prevented that effectively coal powder injection from chewing the impact of the heat-proof tile that internal stress that the steel core expanded by heating produces chews coal powder injection, heat-proof tile has adopted sialon ceramic materials to prevent that heat-proof tile is subject to the problem that affects the destruction that heat-proof tile is subject to of clinker particle easily, has effectively prolonged the service life of heat-proof tile.
Description of drawings
Fig. 1 is the structural representation that cement kiln coal injection that the utility model specific embodiment 1 provides is chewed heat-proof tile and assembly thereof.
Fig. 2 is that heat-proof tile that cement kiln coal injection that the utility model specific embodiment 1 provides is chewed heat-proof tile is installed in coal powder injection and chews schematic diagram on the steel core.
Fig. 3 is screw and the ceramic gasket constitutional diagram that cement kiln coal injection that the utility model specific embodiment 1 provides is chewed heat-proof tile.
Fig. 4 be among Fig. 2 of providing of the utility model specific embodiment 1 installing hole A-A to cutaway view.
Fig. 5 is the assembly drawing that cement kiln coal injection that the utility model specific embodiment 1 provides is chewed screw, ceramic gasket and the installing hole of heat-proof tile.
Wherein: 1: heat-proof tile; 2: steel core is chewed in coal powder injection; 3: screw; 4: ceramic gasket; 5: unshape refractory; 11: the first heat-proof tile unit; 12: the second heat-proof tile unit; 13: the three heat-proof tile unit; 31: nut; 32: screw rod; 131: installing hole; 132: Inner emargination arc; 133: the outer rim concave arc; 1311: hole on the installing hole; 1312: hole under the installing hole.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
Fig. 1 is the structural representation that cement kiln coal injection that the utility model specific embodiment 1 provides is chewed heat-proof tile.Shown in it, heat-proof tile 1 comprises the first heat-proof tile unit 11, the second heat-proof tile unit 12 and the 3rd heat-proof tile unit 13, the cross section of three heat-proof tiles is circular arc, three central angles corresponding to heat-proof tile unit are the installing hole 131 that all has at least two determining deviations on 120 ° of each heat-proof tile unit, installing hole 131 comprises that under the hole 1311 and installing hole hole 1312 on the installing hole, the diameter in hole 1311 is greater than the diameter in hole under the installing hole 1312 on the installing hole; The first heat-proof tile unit 11, the two ends of the second heat-proof tile unit 12 and the 3rd heat-proof tile unit 13 are provided with the step-like bite that cooperatively interacts, the Inner emargination arc that the Inner edge that the bite at concrete the is two ends of the first heat-proof tile unit 11 is heat-proof tile is recessed to form to the outer rim direction of heat-proof tile, the outer rim depression that the outer rim that the bite at the two ends of the second heat-proof tile unit 12 is heat-proof tile is recessed to form to the Inner edge direction of heat-proof tile, one end of the 3rd anti-hot cell is the Inner emargination arc that the Inner edge of heat-proof tile is recessed to form to the outer rim direction of heat-proof tile, the other end is the outer rim concave arc that the outer rim of heat-proof tile is recessed to form to the Inner edge direction of heat-proof tile, Inner emargination arc is identical with outer rim concave arc shape in the utility model, the Inner emargination arc shape identical with being of outer rim concave arc of three heat-proof tiles, in the utility model, be specifically described as an example of the 3rd heat-proof tile unit 13 example, bite one end of the 3rd heat-proof tile unit 13 has outer rim concave arc 132 as shown in Figure 2, the other end has Inner emargination arc 133, Inner emargination arc 132 is identical with the shape of outer rim concave arc 133, the internal diameter of Inner emargination arc is identical with the internal diameter of heat-proof tile in the present embodiment, the internal diameter of its external diameter and heat-proof tile is identical with the mean value of external diameter, the internal diameter of outer rim concave arc is identical with the mean value of the internal diameter of heat-proof tile and external diameter, and the external diameter of its external diameter and heat-proof tile is identical; The mutual interlock of step trough that forms by Inner emargination arc and outer rim concave arc when three heat-proof tiles cooperatively interact.
A kind of cement kiln coal injection is chewed heat-proof tile and assembly thereof and is comprised that coal powder injection chews steel core 2, screw 3, ceramic gasket 4 and mutually splice and be wrapped in three heat-proof tile unit 1 that steel core 2 outsides are chewed in described coal powder injection, the installing hole 131 that all has at least two determining deviations on each heat-proof tile unit, installing hole 131 comprises that under the hole 1311 and installing hole hole 1312 on the installing hole, the diameter in hole 1311 is greater than the diameter in hole under the installing hole 1312 on the installing hole, three heat-proof tile unit all are fixed on the steel core that coal powder injection chews by the screw 3 that passes installing hole 131, be provided with ceramic gasket 4 between the nut 31 of screw 3 and the heat-proof tile, the nut 31 of screw 3 and the diameter of ceramic gasket 4 are less than the diameter in hole 1311 on the installing hole of installing hole 131, its screw rod 32 is less than the diameter in hole under the installing hole 1312, this kind structure can make between screw 3 and ceramic gasket 4 and the heat-proof tile and to form the expansion clearance and avoid, each parts is because the different spalling phenomenons that produce of expanded by heating coefficient, installs the end that screw 3 rear installing holes are exposed in the cement kiln and is filled with unshape refractory 5.
The quantity of installing hole 131 is two in the utility model, and screw 3 passes installing hole 131 and heat-proof tile is fixed on coal powder injection chews on the steel core 2; Screw 3 comprises nut 31 and screw rod 32 as shown in Figure 3, and ceramic gasket 4 is arranged between screw 3 and the heat-proof tile during installation.Installing hole 131 comprises that under the hole 1311 and installing hole hole 1312 on the installing hole as shown in Figure 4, and the diameter in hole 1311 is greater than the diameter in hole under the installing hole 1312 on the installing hole.Fig. 5 be Fig. 2 A-A to cutaway view, shown in it, the schematic diagram that screw 3 and installing hole 131 match, screw rod 32 passes first hole 1312 under the installing hole that ceramic gasket 4 penetrates installing hole 131 again, blocking installing hole 131 with unshape refractory 5 after installing screw 3, preventing that screw cap 31 from exposing in cement kiln is burnt, and prevents because different phenomenons that produce spalling of expanded by heating coefficient between each parts.
The outer diameter part megadyne temperature degree of supposing heat-proof tile is 1300 ℃, and inside diameter megadyne temperature degree is 400 ℃, and the span of each parts of heat-proof tile is: the length of heat-proof tile is 300 ~ 600mm, is provided with the installing hole that spacing is 150 ~ 300mm on it; Screw uses 310 or 330 heat resisting steel, and the diameter of screw rod is that 8 ~ 30mm highly is 60 ~ 70mm, and that wherein imbed the steel core part is 5 ~ 10mm, and the length of imbedding in the heat-proof tile is 50 ~ 65mm; The diameter of nut is 40 ~ 100mm, highly is 8 ~ 20mm; The external diameter of ceramic gasket is that 40 ~ 100mm, internal diameter are 9 ~ 31mm, highly are 5 ~ 10mm; The aperture in hole is 9 ~ 31mm under the installing hole of installing hole, and the height in hole is 10 ~ 57mm under the installing hole, and the aperture in hole is 60 ~ 120mm on the installing hole, it highly is 8 ~ 55mm.More than be designed with to be beneficial to and reduce the thermal stress that steel core is chewed in heat-proof tile and coal powder injection, prolong the service life of heat-proof tile.Chew to be positioned under the different duties in coal powder injection and coal powder injection chewed and some specific designs of assembly require:
1, cold conditions, less than 200MPa, screw can not damage refractory material to screw to the average pressure of heat-proof tile;
2, hot, the design temperature of nut is 850 ~ 1100 ℃, and screw cap is within the operating temperature range of heat resisting steel permission;
3, be heated after, 1300 ℃ of refractory material exospheric temperatures are chewed in coal powder injection, 1100 ℃ of screw cap place temperature, 400 ℃ of refractory material internal layer temperature;
4, be heated after, the outer maximum swelling 3mm of heat-proof tile is chewed in coal powder injection, screw cap place expansion 2mm, refractory material inner layer expansion 1mm reserves the expansion clearance during installation between screw and heat-proof tile, heat-proof tile and screw can not produce strong contact action, damage refractory material;
5, behind the mounting screw, stop up screw hole with unshape refractory, prevent that screw cap from exposing in kiln gas and by scaling loss.
Can select coal powder injection to chew the concrete numerical value of each assembly according to actual conditions, chew according to the coal powder injection of above-mentioned numerical Design that each assembly can effectively reduce each parts because the impact that the existence of thermal stress is subject to.
Heat-proof tile is made by Sialon ceramics, and the chief component element of Sialon ceramics is silicon, aluminium, oxygen and nitrogen, is silicon nitride Si
3N
4And aluminium oxide Al
2O
3Solid solution, basic structural unit is (Si, Al) (O, N) tetrahedron.Sialon ceramics has very high hardness and wearability, good chemical stability, thermal shock resistance and and excellent high-temperature oxidation resistance.Adopt match to swell and make heat-proof tile, be conducive to prevent that thermal shock from damaging, be conducive to reduce erosion and the adhesion of clinker fine particle, thereby be conducive to improve the life-span that coal powder injection is chewed.
Below the utility model is carried out the restriction in a nearly step for the obstructed embodiment that provides:
Embodiment 1, the heat-proof tile unit that practical Sialon pottery is made, the length of heat-proof tile unit is 300mm, on the heat-proof tile unit, be provided with two installing holes take spacing as 150mm, aperture, installing hole bottom is 9mm, the aperture, top is 60mm, the height in lower hole is that the height in the upper hole of 10mm is 8mm, by screw heat-proof tile being installed in coal powder injection chews on the steel core, be provided with ceramic gasket between screw and the heat-proof tile, the material of screw is 310 heat resisting steel, and the diameter of screw rod is 8mm, and the height of screw rod is 60mm, the length of imbedding steel core is 5mm, the length of imbedding heat-proof tile is 50mm, and the diameter of nut is 40mm, highly be 8mm, the external diameter of ceramic gasket is 40mm, internal diameter is that 9mm and thickness are 5mm.The diameter of nut and ceramic gasket external diameter be all less than the aperture in hole on the installing hole, screw rod diameter less than the aperture in hole under the installing hole, this kind design is reserved assemblage gap between screw and the heat-proof tile again, reduces thermal stress to the impact of all parts.
Embodiment 2, the heat-proof tile unit that practical Sialon pottery is made, the length of heat-proof tile unit is 400mm, on the heat-proof tile unit, be provided with two installing holes take spacing as 200mm, aperture, installing hole bottom is 12mm, the aperture, top is 62mm, the height in lower hole is that the height in the upper hole of 45mm is 45mm, by screw heat-proof tile being installed in coal powder injection chews on the steel core, be provided with ceramic gasket between screw and the heat-proof tile, the material of screw is 310 heat resisting steel, and the diameter of screw rod is 10mm, and the height of screw rod is 65mm, the length of imbedding steel core is 6mm, the length of imbedding heat-proof tile is 59mm, and the diameter of nut is 42mm, highly be 10mm, the external diameter of ceramic gasket is 52mm, internal diameter is that 12mm and thickness are 5mm.The diameter of nut and ceramic gasket external diameter be all less than the aperture in hole on the installing hole, screw rod diameter less than the aperture in hole under the installing hole, this kind design is reserved assemblage gap between screw and the heat-proof tile again, reduces thermal stress to the impact of all parts.
The utility model is by using the Sialon pottery to make heat-proof tile, and the impact of having avoided heat-proof tile to be subject to easily the clinker particle causes the problem of the destruction that heat-proof tile is subject to, and effectively prolonged the service life of heat-proof tile.Prevented effectively that by adopting three block-shaped identical convex structure heat-proof tile unit combination to use and between screw and heat-proof tile, reserve the expansion clearance coal powder injection from chewing the impact of the heat-proof tile that internal stress that the steel core expanded by heating produces chews coal powder injection.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described just in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, and these modes all will fall within the protection domain of the present utility model.
Claims (10)
1. a cement kiln coal injection is chewed heat-proof tile, it is characterized in that, described heat-proof tile comprises the first heat-proof tile unit, the second heat-proof tile unit and the 3rd heat-proof tile unit, and the cross section of three described heat-proof tile unit is circular arc;
The installing hole that all has at least two determining deviations on each heat-proof tile unit, described installing hole comprise that under the hole and installing hole the hole on the installing hole, and the diameter in hole is greater than the diameter in hole under the installing hole on the described installing hole.
2. cement kiln coal injection according to claim 1 is chewed heat-proof tile, it is characterized in that, the corresponding central angle in described first, second, and third heat-proof tile unit is 120 °.
3. cement kiln coal injection according to claim 2 is chewed heat-proof tile, it is characterized in that, the two ends of described first, second, and third heat-proof tile unit are equipped with the stair-stepping bite that cooperatively interacts.
4. cement kiln coal injection according to claim 3 is chewed heat-proof tile, it is characterized in that, the Inner emargination arc that the Inner edge that the bite at the two ends of described the first heat-proof tile unit is heat-proof tile is recessed to form to the outer rim direction of heat-proof tile; The outer rim concave arc that the outer rim that the bite of described the second heat-proof tile unit is heat-proof tile is recessed to form to the Inner edge direction of heat-proof tile; Described the 3rd heat-proof tile unit one end has Inner emargination arc, and its other end has the outer rim concave arc.
5. cement kiln coal injection according to claim 4 is chewed heat-proof tile, it is characterized in that, described Inner emargination arc is identical with the shape of described outer rim concave arc.
6. cement kiln coal injection according to claim 4 is chewed heat-proof tile, it is characterized in that, described Inner emargination arc internal diameter identical with the internal diameter of described heat-proof tile, the external diameter of described Inner emargination arc is identical with the mean value of the internal diameter of described heat-proof tile and external diameter; The internal diameter of described outer rim concave arc is identical with the mean value of the internal diameter of described heat-proof tile and external diameter, and the external diameter of described outer rim concave arc is identical with the external diameter of described heat-proof tile.
7. cement kiln coal injection according to claim 1 is chewed heat-proof tile, it is characterized in that, described three heat-proof tile unit are made by the Sialon pottery.
8. a cement kiln coal injection is chewed the heat-proof tile assembly, it is characterized in that, comprises that the heat-proof tile claimed in claim 1 and the coal powder injection that are made of three heat-proof tile unit chew steel core, screw and ceramic gasket; Three heat-proof tile unit mutually splice and are wrapped in the outside that steel core is chewed in described coal powder injection, and described three heat-proof tile unit all are fixed on the steel core that coal powder injection chews by the screw that passes installing hole; Be provided with described ceramic gasket between the nut of described screw and the described heat-proof tile unit.
9. cement kiln coal injection according to claim 8 is chewed heat-proof tile, it is characterized in that, the nut of described screw and the diameter of described ceramic gasket are less than the aperture in hole on the installing hole, and the screw rod of described screw forms the dilatation joint between screw and the heat-proof tile less than the aperture in hole under the described installing hole.
10. cement kiln coal injection according to claim 8 is chewed heat-proof tile, it is characterized in that, the end that described installing hole is exposed in the cement kiln is filled with unshape refractory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220178851 CN202835413U (en) | 2012-04-24 | 2012-04-24 | Cement kiln coal injection nozzle thermal protection tile and components thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220178851 CN202835413U (en) | 2012-04-24 | 2012-04-24 | Cement kiln coal injection nozzle thermal protection tile and components thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202835413U true CN202835413U (en) | 2013-03-27 |
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ID=47947107
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220178851 Expired - Fee Related CN202835413U (en) | 2012-04-24 | 2012-04-24 | Cement kiln coal injection nozzle thermal protection tile and components thereof |
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| Country | Link |
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| CN (1) | CN202835413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629686A (en) * | 2013-11-08 | 2014-03-12 | 长兴盛华耐火材料有限公司 | Coal-injection duct prefabricated part |
-
2012
- 2012-04-24 CN CN 201220178851 patent/CN202835413U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629686A (en) * | 2013-11-08 | 2014-03-12 | 长兴盛华耐火材料有限公司 | Coal-injection duct prefabricated part |
| CN103629686B (en) * | 2013-11-08 | 2016-06-08 | 长兴盛华耐火材料有限公司 | Coal injection pipe prefabricated component |
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