CN113135392A - High-temperature helical blade ceramic wear-resistant structure - Google Patents
High-temperature helical blade ceramic wear-resistant structure Download PDFInfo
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- CN113135392A CN113135392A CN202010051519.8A CN202010051519A CN113135392A CN 113135392 A CN113135392 A CN 113135392A CN 202010051519 A CN202010051519 A CN 202010051519A CN 113135392 A CN113135392 A CN 113135392A
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- wear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
- B65G33/265—Screws with a continuous helical surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/22—Heat or fire protection
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- Mechanical Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
The invention provides a high-temperature spiral blade ceramic wear-resistant structure which comprises a main shaft, a fixed spiral seat, a wear-resistant ceramic sheet, a ceramic guard plate and a fastener. The fixed spiral seat is welded on the main shaft. The fixed screw seat is detachably provided with a wear-resistant ceramic wafer, the outer side of the wear-resistant ceramic wafer is fixed by a ceramic guard plate, and the ceramic guard plate is connected with the fixed screw seat through a fastening piece. The high-temperature-resistant wear-resistant spiral ceramic structure provided by the invention can also be used for a spiral shaft of garbage solid heat carrier conveying equipment. The invention adopts an assembled spiral ceramic plate structure, and divides the spiral blade into a fixed spiral seat, a wear-resistant ceramic plate and a ceramic guard plate, thereby not only solving the problem of short service life of the spiral blade in the prior art, but also solving the problem that the spiral blade is not easy to be disassembled from equipment after being damaged, not only having simple operation, but also reducing economic cost.
Description
Technical Field
The invention belongs to the technical field of helical blades, and particularly relates to a high-temperature helical blade ceramic wear-resistant structure.
Background
The pyrolysis reactor is the key core equipment in the domestic waste pyrolysis system, plays the effect of carrying, mixing and stirring, because the solid heat carrier belongs to high temperature granular material, the rubbish pyrolysis reactor is in the transport state of the solid heat carrier of high load for a long time, so to carry helical blade's wearability and high temperature resistance have very high requirement, and present helical blade is at the wear-resisting technological scheme of build-up welding carbide on helical blade, and current technical scheme has following shortcoming when using the helical blade of pyrolysis reactor:
when the spiral blade is worn, the damaged spiral blade needs to be cut off from the spiral shaft, and then a new spiral blade is welded on the main shaft, the main shaft of the pyrolysis reactor is difficult to disassemble and only can enter the pyrolysis reactor to operate, the welding mode makes the replacement process of the spiral blade extremely difficult, the cost is high, the time spent is long, the garbage pyrolysis reactor is the most critical equipment in garbage pyrolysis, and the long waiting time and the short replacement period can bring great obstruction to the whole garbage pyrolysis process.
Patent publication No. CN 208678864U discloses a detachable stirring blade, which is suitable for the situation where the working temperature is not high and the medium does not need to be transported, and if the blade is used in a pyrolysis reactor, the high temperature environment may cause the blade and the connecting member between the blade and the shaft structure to be seriously damaged and fail to work, and the structure is suitable for stirring, has poor transport capability, and is not suitable for use in the pyrolysis reactor.
The ceramic spiral structure provided by the invention can obviously enhance the high temperature resistance, the wear resistance and the conveying capacity of the spiral blade, and meanwhile, the replacement of the spiral blade can be quickly realized by adopting a more detachable structural scheme, so that the problems can be solved.
Disclosure of Invention
The invention mainly aims to provide a high-temperature helical blade ceramic wear-resistant structure which can be detachably mounted and has a prolonged service life.
The technical scheme adopted by the invention is as follows:
a high-temperature spiral blade ceramic wear-resistant structure comprises a main shaft, a fixed spiral seat, a wear-resistant ceramic sheet, a guard plate and a fastener. The fixed spiral seat is welded on the main shaft. The detachable wear-resistant ceramic wafer is arranged on the fixed spiral seat, the outer side of the wear-resistant ceramic wafer is fixed by the guard plate, the guard plate is connected with the fixed spiral seat through the fastener, and the thermal expansion coefficient of the adopted fastener is greater than that of the fixed spiral seat.
The main shaft is made of high-temperature-resistant stainless steel. The main shaft is a hollow pipe, cooling water is filled in the middle of the main shaft, and the cooling mode adopts a design structure that water enters the pipe inside and water exits the pipe outside.
A layer of high-temperature-resistant and wear-resistant castable is poured on the outer surface of the main shaft.
The fixed spiral seat extends spirally, and a fixing hole and a groove are formed in the fixed spiral seat. The shape of the groove is matched with the wear-resistant ceramic sheet, and a certain gap is reserved for placing the red copper gasket. The wear-resistant ceramic plates are arranged on the grooves, so that 5 degrees of freedom of the wear-resistant ceramic plates are fixed, and the degrees of freedom in the horizontal direction of the main shaft are not fixed.
The wear-resistant ceramic plates are arranged on the grooves of the fixed spiral seat one by one, and the interval between every two wear-resistant ceramic plates is 20-30 mm.
The wear-resistant ceramic plate is processed by TiC-Ni metal ceramic. The section is an inverted trapezoid with a narrow top and a wide bottom. Two trapezoidal waist positions are clamped on the fixed spiral seat, so that the wear-resistant ceramic wafer is prevented from being thrown out.
The guard plate is a plate-shaped object with an inclined surface, and a plurality of positioning holes are formed in the plane of the guard plate. The inclined surface of the guard plate is matched with the shape of the wear-resistant ceramic plate. The guard plate is arranged on the outer side of the wear-resistant ceramic wafer and used for fixing the degree of freedom of the wear-resistant ceramic wafer in the horizontal direction of the main shaft.
The guard plate is made of high-temperature resistant stainless steel.
The fastener is a pin. The fastener passes through the locating hole and links together backplate and fixed spiral seat fixed connection. Each wear-resistant ceramic plate is fixed by a plurality of fastening pins.
The end face of the fastener is sprayed with high-temperature resistant hard alloy, and the hardness can reach more than 65 HRC.
And 5mm red copper gaskets are respectively embedded between the wear-resistant ceramic wafer and the fixed spiral seat and between the wear-resistant ceramic wafer and the guard plate. The red copper gasket can eliminate the gap between the screw seat and the wear-resistant ceramic chip due to thermal expansion under high-temperature working conditions, and can buffer the impact of the outside on the ceramic chip.
The ceramic wear-resistant structure with the high-temperature helical blades provided by the invention can also be used for helical shafts of garbage solid heat carrier conveying equipment. The invention has the following remarkable effects:
1) the overhaul is convenient: the ceramic spiral structure comprises a fixed spiral seat, a wear-resistant ceramic piece, a protective plate, a red copper gasket and a fastener, wherein the wear-resistant ceramic piece is arranged between the fixed spiral seat and the protective plate, and then the wear-resistant ceramic piece is connected with the fixed spiral seat through the fastener, so that the paddle structure is a detachable structure, and when the screw paddle is damaged, the wear-resistant ceramic piece can be quickly replaced, and the mounting and the dismounting are convenient;
2) is suitable for conveying high-temperature solid particles: through designing continuous fixed spiral seat, the helical blade structure has continuous transport's ability, and helical blade's top is wear-resisting high temperature resistant potsherd, still can keep the high rigidity under the 900 ℃ high temperature condition, has placed the red copper gasket simultaneously between wear-resisting potsherd and fixed spiral seat and backplate, prevents that the different thermal energy that brings of three high temperature expansion from damaging. The high temperature resistance, the wear resistance and the reliability of the blade are further enhanced.
Drawings
FIG. 1 is a front view of a high temperature helical blade ceramic wear resistant structure;
FIG. 2 is a front view of a wear-resistant ceramic wafer;
FIG. 3 is a side view of a wear-resistant ceramic wafer;
FIG. 4 is a schematic view of a stationary screw base;
FIG. 5 is a schematic view of the shield.
Wherein: 1 is a main shaft; 2 is a fixed screw seat; 21 is a groove; 22 is a fixing hole; 3 is a wear-resistant ceramic wafer; 4 is a guard plate; 41 is an inclined plane; 42 is a positioning hole; and 5, a fastener.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
As shown in fig. 1-5, the present invention provides a high temperature spiral blade ceramic wear-resistant structure, which comprises a main shaft 1, a fixed spiral seat 2, a wear-resistant ceramic plate 3, a guard plate 4 and a fastening member 5. The fixed screw seat 2 is welded on the main shaft 1. The fixed screw seat 2 is detachably provided with a wear-resistant ceramic plate 3, the outer side of the wear-resistant ceramic plate 3 is fixed by a guard plate 4, and the guard plate 4 is connected with the fixed screw seat 2 through a fastening piece 5.
The main shaft 1 is made of high temperature resistant stainless steel. The main shaft 1 is a hollow pipe, cooling water is filled in the middle of the main shaft, and the cooling mode adopts a design structure that water enters the pipe and water exits from the pipe.
A layer of high-temperature-resistant and wear-resistant castable is poured on the outer surface of the main shaft 1, so that the strength of the main shaft 1 is prevented from being damaged by solid heat carrier particles, and the service life and the strength of the main shaft 1 under the high-temperature condition are ensured.
As shown in fig. 4, the fixing screw base 2 extends spirally, and the fixing screw base 2 is provided with a fixing hole 22 and a groove 21. The shape of the groove 21 is adapted to the shape of the wear-resistant ceramic plate 3. The wear-resistant ceramic plate 3 is detachably mounted on the groove 21, so that 5 degrees of freedom of the wear-resistant ceramic plate 3 are ensured to be fixed, and only the degree of freedom in the horizontal direction of the spindle 1 is left unfixed.
The wear-resistant ceramic plates 3 are arranged on the grooves 21 of the fixed spiral seat 2 one by one, and the interval between every two wear-resistant ceramic plates 3 is 20-30 mm.
The wear-resistant ceramic plate 3 is formed by processing TiC-Ni metal ceramic, and the section of the wear-resistant ceramic plate is in an inverted trapezoid shape with a narrow upper part and a wide lower part. The design structure can ensure that the part of the wear-resistant ceramic piece 3, which is contacted with materials, is the largest area, and the waist positions of the two trapezoids are clamped on the fixed spiral seat 2, so that the wear-resistant ceramic piece 3 can not be thrown out.
As shown in fig. 5, the protection plate 4 is a plate-shaped object having an inclined surface 41, and a plurality of positioning holes 42 are formed on the flat surface of the protection plate 4. The inclined surface 41 of the guard plate 4 is matched with the shape of the wear-resistant ceramic plate 3. The guard plate 4 is arranged on the outer side of the wear-resistant ceramic plate 3 and used for fixing the degree of freedom of the wear-resistant ceramic plate 3 in the horizontal direction of the main shaft 1.
The guard plate 4 is processed from high temperature resistant stainless steel.
The fastener 5 is a pin. The fastener 5 fixedly connects the guard plate 4 and the fixed screw seat 2 through the positioning hole 42. Each wear-resistant ceramic piece 3 is fixed by a plurality of fasteners 5 to prevent the wear-resistant ceramic piece 3 from falling off.
The end face of the fastener 5 is coated with high-temperature-resistant hard alloy, so that the fastener is prevented from being damaged due to high temperature in the using process, and the equipment is ensured to always run safely and stably.
5mm red copper is embedded between the wear-resistant ceramic plate 3 and the fixed spiral seat 2 and between the wear-resistant ceramic plate 3 and the guard plate 4. The gap between the fixed spiral seat 2 and the wear-resistant ceramic plate 3 caused by different thermal expansion can be eliminated, the impact of the outside on the ceramic plate can be buffered, and the service life of the wear-resistant ceramic plate 3 is further prolonged.
The ceramic wear-resistant structure with the high-temperature helical blades provided by the invention can also be used for helical shafts of garbage solid heat carrier conveying equipment.
The installation steps of the high-temperature helical blade ceramic wear-resistant structure provided by the invention are as follows: firstly welding the fixed screw seat 2 on the main shaft 1, then constructing the high-temperature-resistant and wear-resistant castable for the main shaft 1, then pushing the wear-resistant ceramic plate 3 into the groove 21 in parallel, then fixing the last degree of freedom of the wear-resistant ceramic plate 3 by using the guard plate 4 on the outer side of the wear-resistant ceramic plate 3, and positioning the guard plate 4 by using the fastening piece 5, thus finishing the installation.
When the wear-resistant ceramic piece 3 is damaged, the wear-resistant ceramic piece 3 is detached from the fixed spiral seat 2, so that the device is convenient and quick, and saves time and labor.
Claims (10)
1. The utility model provides a high temperature helical blade pottery wear-resisting structure which characterized in that: the novel multifunctional spindle comprises a spindle (1), a fixed screw seat (2), a wear-resistant ceramic piece (3), a protection plate (4) and a fastener (5), wherein the fixed screw seat (2) is welded on the spindle (1), the wear-resistant ceramic piece (3) is detachably mounted on the fixed screw seat (2), the outer side of the wear-resistant ceramic piece (3) is fixed by the protection plate (4), and the protection plate (4) is connected with the fixed screw seat (2) through the fastener (5).
2. The high temperature helical blade ceramic wear structure of claim 1, wherein: the wear-resistant ceramic chip (3) is formed by processing high-temperature-resistant and wear-resistant ceramic, the cross section of the wear-resistant ceramic chip (3) is in the shape of an inverted trapezoid with a narrow upper part and a wide lower part, and two trapezoidal waist positions are clamped on the fixed spiral seat (2).
3. The high temperature helical blade ceramic wear structure of claim 1, wherein: fixed spiral seat (2) are the heliciform and extend, are provided with fixed orifices (22) and recess (21) on fixed spiral seat (2), and the shape and the wear-resisting potsherd (3) of recess (21) suit, and wear-resisting potsherd (3) demountable installation is on recess (21), ensures that 5 degrees of freedom of wear-resisting potsherd (3) are fixed, only leaves the degree of freedom on main shaft (1) the horizontal direction not fixed.
4. The high temperature helical blade ceramic wear structure of claim 1, wherein: wear-resisting potsherd (3) are installed on recess (21) of fixed spiral seat (2) one by one, and the interval between per two wear-resisting potsherds (3) is 20 ~ 30 mm.
5. The high temperature helical blade ceramic wear structure of claim 1, wherein: the protective plate (4) is formed by processing high-temperature-resistant stainless steel, the protective plate (4) is a plate-shaped object with an inclined surface (41), two positioning holes (42) are formed in the plane of the protective plate (4), the inclined surface (41) of the protective plate (4) is matched with the shape of the wear-resistant ceramic wafer (3), and the protective plate (4) is arranged on the outer side of the wear-resistant ceramic wafer (3) and used for fixing the degree of freedom of the wear-resistant ceramic wafer (3) in the horizontal direction of the main shaft (1).
6. The high temperature helical blade ceramic wear structure of claim 1, wherein: the fastening piece (5) is a pin, the thermal expansion coefficient of the pin material is larger than that of the material of the fixed spiral seat (2), the end face of the fastening piece (5) is coated with high-temperature-resistant hard alloy, the fastening piece (5) fixedly connects the guard plate (4) with the fixed spiral seat (2) through the positioning hole (42), and each wear-resistant ceramic piece (3) is fixed by a plurality of fastening pieces (5).
7. The high temperature helical blade ceramic wear structure of claim 1, wherein: red copper about 5mm is embedded between the wear-resistant ceramic wafer (3) and the fixed spiral seat (2) and between the wear-resistant ceramic wafer (3) and the guard plate (4).
8. The high temperature helical blade ceramic wear structure of claim 1, wherein: the main shaft (1) is a hollow pipe made of high-temperature-resistant stainless steel, and cooling water is introduced into the middle of the hollow pipe.
9. The high temperature helical blade ceramic wear structure of claim 1, wherein: and a layer of high-temperature-resistant wear-resistant castable is poured on the outer surface of the main shaft (1).
10. A high temperature helical blade ceramic wear structure as claimed in any one of claims 1 to 9, wherein: the high-temperature spiral blade ceramic wear-resistant structure can also be used for a spiral shaft of garbage solid heat carrier conveying equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051519.8A CN113135392A (en) | 2020-01-17 | 2020-01-17 | High-temperature helical blade ceramic wear-resistant structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051519.8A CN113135392A (en) | 2020-01-17 | 2020-01-17 | High-temperature helical blade ceramic wear-resistant structure |
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| Publication Number | Publication Date |
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| CN113135392A true CN113135392A (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010051519.8A Pending CN113135392A (en) | 2020-01-17 | 2020-01-17 | High-temperature helical blade ceramic wear-resistant structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701813A (en) * | 2022-03-28 | 2022-07-05 | 浙江天新智能研究院有限公司 | Assembled blade structure for screw conveyor |
-
2020
- 2020-01-17 CN CN202010051519.8A patent/CN113135392A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701813A (en) * | 2022-03-28 | 2022-07-05 | 浙江天新智能研究院有限公司 | Assembled blade structure for screw conveyor |
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