CN212839487U - Improved structure of tertiary air valve - Google Patents
Improved structure of tertiary air valve Download PDFInfo
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- CN212839487U CN212839487U CN202021290638.0U CN202021290638U CN212839487U CN 212839487 U CN212839487 U CN 212839487U CN 202021290638 U CN202021290638 U CN 202021290638U CN 212839487 U CN212839487 U CN 212839487U
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- 239000013081 microcrystal Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 15
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- 230000006872 improvement Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
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- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
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Abstract
The utility model relates to an improved structure of a tertiary air valve, which comprises a valve body, wherein the top of the valve body is provided with a lifting lug, and the valve body consists of a microcrystal plate valve body positioned at the lower part and a castable valve body positioned at the upper part; the microcrystal plate valve body comprises the microcrystal plate valve chamber that is located the outside and the pouring material of filling in the microcrystal plate valve intracavity, and the microcrystal plate valve chamber is the square cavity that is assembled by a plurality of microcrystal plates and forms, and the welding has a plurality of heat-resisting billet on the microcrystal plate that is located microcrystal plate valve intracavity side bottom, and the length of heat-resisting billet is the same with the height of valve body inner chamber, and it has the round hole to open on every microcrystal plate, the one end of a connecting rod of welding in the round hole of every microcrystal plate, the other end of connecting rod and the welding of the heat-resisting billet that corresponds, a plurality of heat-resisting reinforcing bars of welding between the heat-resisting billet. The utility model discloses a micrite board preparation tertiary air valve to carry out welded fastening with heat-resisting billet and heat-resisting billet rod inside, make the valve have wear-resisting, anti skinning, the advantage of life cycle length.
Description
Technical Field
The utility model belongs to the technical field of equipment for cement manufacture, in particular to tertiary air valve's improvement structure.
Background
In the cement production process, clinker firing plays an important role in the cement production link. Along with the increasing environmental protection pressure, the rotary kiln cooperatively disposes the waste to become a novel environmental protection route. In the process of cooperatively treating wastes in the rotary kiln, as the harmful gas components in the flue gas are greatly increased, the service life of the refractory material is directly influenced, the service life of the refractory material is shortened, particularly the service life of the tertiary air valve is obviously shortened, and the tertiary air valve is abraded and damaged. The tertiary air valve is not adjustable after being damaged, so that the air for the kiln is out of balance, and the thermal parameters cannot be effectively controlled. When the ventilation of the tertiary air pipe is not smooth, the material accumulation in the air pipe is easy to generate, and the heat consumption of the system is increased. At present, a tertiary air valve is adopted, and the valve is in the form of a gate valve; the valve plate of the tertiary air valve is made of a heat-resistant steel plate, the cramp is welded on the heat-resistant steel plate, the tertiary air valve is provided with a template, and pouring materials are filled for coagulation forming. The pouring material at the bottom of the tertiary air valve falls off after the gate valve with the refractory steel plate and pouring material concrete structure is used for half a year, and the inner stainless steel plate is burnt out.
As the air temperature in the tertiary air pipe is about 880 ℃ during the production of the coal, the temperature can reach 900-950 ℃ when the fluctuation of the kiln conditions is large or sand is blown. The design of the valve plate therefore takes into account firstly the creep effects which it can withstand when operating at high temperatures. Creep is the large deformation that occurs at high temperatures over time even when stresses below the yield strength limit are applied. The higher the solid melting temperature, the greater the high temperature strength. In addition, the rotary kiln is used for cooperatively treating wastes, and the contents of harmful components such as alkali, Cl and S in the flue gas are greatly increased, so that the system is seriously skinned. Preventing or reducing tertiary air valve skinning is yet another important consideration in valve design.
Disclosure of Invention
The utility model discloses a solve the technical problem who exists among the well-known technology and provide a tertiary air valve's improvement structure, should improve the structure and adopt to have wear-resisting, anti skinning, the advantage of life cycle length, can provide good operating condition for well accuse operator effectively, stabilize kiln condition and thermal technology system, lay good basis for normal production.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be:
an improved structure of a tertiary air valve comprises a valve body, wherein a lifting lug is arranged at the top of the valve body, and the valve body consists of a microcrystalline plate valve body positioned at the lower part and a castable valve body positioned at the upper part; the microcrystal plate valve body comprises the microcrystal plate valve chamber that is located the outside and the pouring material of filling in microcrystal plate valve intracavity, the square cavity that forms is assembled for being by a plurality of microcrystal plates to the microcrystal plate valve chamber, and the welding has a plurality of heat-resisting billet on the microcrystal plate that is located microcrystal plate valve intracavity side bottom, the length of heat-resisting billet is the same with the height of valve body inner chamber, every it has the round hole, every to open on the microcrystal plate the one end of a connecting rod of welding in the round hole of microcrystal plate, the other end of connecting rod and the welding of the heat-resisting billet that corresponds, a plurality of heat-resisting reinforcing bars of welding between the heat-resisting billet.
In the above technical solution, preferably, a ratio of a height of the microcrystalline plate valve body to a height of the castable valve body is (3-4): 1.
in the above technical solution, preferably, the connecting rod is L-shaped.
The utility model has the advantages and positive effects that:
the utility model discloses owing to adopted brand-new technical scheme, adopt novel anti skinning refractory material micrite board preparation tertiary air valve to carry out welded fastening with heat-resisting billet and heat-resisting billet rod inside the valve, make the valve have wear-resisting, anti skinning, the advantage of life cycle length, can provide good operating condition for well accuse operator effectively, stabilize kiln condition and thermal technology system, lay good basis for normal production, have better practical application and worth and spreading value.
Drawings
Fig. 1 is a schematic structural view of a tertiary air valve provided in a preferred embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of a tertiary air valve according to a preferred embodiment of the present invention;
fig. 3 is a using state diagram of the tertiary air valve of the present invention.
In the figure: 1. a microchip plate valve body; 2. a castable valve body; 3. a microcrystalline plate; 31. a circular hole; 4. a heat-resistant steel strip; 5. a connecting rod; 6. a heat-resistant reinforcing bar; 7. pouring a material; 8. lifting lugs; 9. and protecting the brick.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified and will be described in detail with reference to the accompanying drawings:
in the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are used in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium; there may be communication between the interiors of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 and 2, an embodiment of the present invention provides an improved structure of a tertiary air valve, including a valve body, where a lifting lug 8 is arranged at the top of the valve body, and the valve body is composed of a lower microcrystalline plate valve body 1 and an upper castable valve body 2; microcrystal board valve body 1 comprises microcrystal board valve chamber and the pouring material 7 of filling in microcrystal board valve chamber that is located the outside, the square cavity that forms is assembled for 3 by a plurality of microcrystalline boards to the microcrystal board valve chamber, and the welding has a plurality of heat-resisting billet 4 on the microcrystal board that is located microcrystal board valve intracavity side bottom, the length of heat-resisting billet 4 is the same with the height of valve body inner chamber, every it has round hole 31, every to open on the microcrystalline board 1 weld the one end of connecting rod 5 in the round hole 31 of microcrystalline board, the other end of connecting rod 5 welds with the heat-resisting billet 4 that corresponds, weld a plurality of heat-resisting steel bar rods 6 between the heat-resisting billet 4. Specifically, the welding has two rows of heat-resisting billet 4 on the micrite board of micrite plate valve intracavity side bottom in this embodiment, every row of heat-resisting billet 4's quantity is the same with the row number of the round hole 31 of micrite plate valve chamber front and back curb plate, every heat-resisting billet 4 corresponds a round hole 31, at this moment, connecting rod 5 in the micrite board round hole 31 of micrite plate valve chamber left and right sides board can be with adjacent heat-resisting billet 4 welded fastening, weld a plurality of heat-resisting steel bars 6 between two rows of heat-resisting billet 4 and connect the reinforcement, the quantity of heat-resisting steel bar 6 is set for according to the actual valve condition, mainly used for supporting heat-resisting billet. The heat-resistant steel bar 4 in the castable valve body 2 at the upper part is fixed and reinforced by welding the transverse heat-resistant steel bar 4, and the lifting lug 8 is welded and fixed with the heat-resistant steel bar 4.
Preferably, the ratio of the height of the microcrystal plate valve body 1 to the height of the castable valve body 2 is (3-4): 1, the main stressed and worn parts of the tertiary air valve are all the parts of the microcrystalline plate valve body 1, and the service life of the tertiary air valve is prolonged.
Preferably, the shape of connecting rod 5 is the L type, has guaranteed connecting rod 5 easily to weld in micrite board round hole 31 promptly, has guaranteed connecting rod 5 and heat-resisting billet 4's area of contact again, guarantees to weld firmly.
The utility model discloses an installation as follows:
1. the valve base (200 x 800mm) is assembled by using the existing size of the microcrystal plate, the stainless steel heat-resistant steel bar 4 is welded on the valve base, and the shape of the valve framework (200 x 800 x 2100mm) is assembled.
2. From the valve bottom, according to 1 size of micrite board, weld 5 one ends of connecting rod in micrite board round hole 31, the other end of connecting rod 5 and heat-resisting billet 4 directly carry out full weld fixed connection, weld heat-resisting billet rod 6 between the heat-resisting billet 4 and fix. By analogy, one is welded and fixed, and when the height of the microcrystal plate valve body 1 reaches 1600mm, the microcrystal plate valve body 1 is installed completely and is prepared for pouring material filling construction.
3. Before the castable is poured, checking that the variety and the model of the castable are correct, keeping a construction working surface clean, enabling a stirrer and a vibrating rod to be intact, checking water quality to be intact, enabling the environmental temperature to meet the requirement, and performing expansion joint treatment before the castable is poured; and (5) after all key points are confirmed to be correct, pouring materials are poured.
4. After the casting materials are mixed and stirred uniformly, the well stirred slurry of the G-16K casting material 7 is filled from the top of a valve and is tamped by a vibrating rod.
5. After 24 hours, the heat-resistant steel bars 4 are transversely welded between the heat-resistant steel bars 4 on the upper part of the valve for fixing and reinforcing, and the lifting lugs 8 are welded at the top end of the valve. The upper castable valve body 2 of the valve is formed by a clear water template support die, and the clear water template at the upper part and the microcrystal plate valve body 1 at the lower part have complete and consistent sizes. After the clean water template is installed, expansion joint treatment is performed in the valve. And (5) filling the G-16K castable for 7 twenty-four hours, then removing the mold and maintaining, and finishing the valve manufacture.
The utility model discloses utilize novel anti skinning refractory material micrite board preparation tertiary air valve. When the valve is designed, the width of the valve can be reduced under the premise of unchanging the area, and the stress effect of the valve plate is reduced; referring to fig. 3, the protective bricks 9 are added on both sides of the tertiary air valve, so that the ventilation on both sides of the valve is reduced by the protective bricks, the opening of the valve is increased, and the stressed area of the valve plate is reduced.
The microcrystal plate has the characteristics of high temperature resistance, corrosion resistance and skinning prevention, and is arranged outside the valve in a prefabricated tertiary air valve combination system, and the heat-resistant steel bars 4 and heat-resistant steel bars 6 are welded inside the valve. And (3) using the microcrystalline plate as a valve forming template, filling the G-16K casting material into the microcrystalline plate, and performing expansion joint treatment. And (5) curing the casting material for 48 hours, and then ventilating and drying. The valve can be used in normal production.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the changes and modifications equivalent to any simple modification made by the technical entity of the present invention to the above embodiments are within the scope of the technical solution of the present invention.
Claims (3)
1. The utility model provides an improvement structure of tertiary air valve, includes the valve body, the top of valve body is equipped with lug, its characterized in that: the valve body consists of a microcrystal plate valve body positioned at the lower part and a castable valve body positioned at the upper part; the microcrystal plate valve body comprises the microcrystal plate valve chamber that is located the outside and the pouring material of filling in microcrystal plate valve intracavity, the square cavity that forms is assembled for being by a plurality of microcrystal plates to the microcrystal plate valve chamber, and the welding has a plurality of heat-resisting billet on the microcrystal plate that is located microcrystal plate valve intracavity side bottom, the length of heat-resisting billet is the same with the height of valve body inner chamber, every it has the round hole, every to open on the microcrystal plate the one end of a connecting rod of welding in the round hole of microcrystal plate, the other end of connecting rod and the welding of the heat-resisting billet that corresponds, a plurality of heat-resisting reinforcing bars of welding between the heat-resisting billet.
2. The improved structure of the tertiary air valve according to claim 1, characterized in that: the height ratio of the microcrystal plate valve body to the castable valve body is (3-4): 1.
3. the improved structure of the tertiary air valve according to claim 1, characterized in that: the connecting rod is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021290638.0U CN212839487U (en) | 2020-07-03 | 2020-07-03 | Improved structure of tertiary air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021290638.0U CN212839487U (en) | 2020-07-03 | 2020-07-03 | Improved structure of tertiary air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212839487U true CN212839487U (en) | 2021-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021290638.0U Active CN212839487U (en) | 2020-07-03 | 2020-07-03 | Improved structure of tertiary air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212839487U (en) |
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2020
- 2020-07-03 CN CN202021290638.0U patent/CN212839487U/en active Active
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