CN219129409U - Improved single tooth roller crusher grid plate - Google Patents
Improved single tooth roller crusher grid plate Download PDFInfo
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- CN219129409U CN219129409U CN202320086245.5U CN202320086245U CN219129409U CN 219129409 U CN219129409 U CN 219129409U CN 202320086245 U CN202320086245 U CN 202320086245U CN 219129409 U CN219129409 U CN 219129409U
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Abstract
The utility model discloses an improved single-toothed roll crusher grate plate which is applied to the field of crushers and comprises a grate plate body, wherein the grate plate body comprises a bearing body and wear areas symmetrically arranged on two sides of the bearing body, wear-resisting blocks are wrapped on the wear areas, and the wear-resisting blocks and the wear areas are assembled and fixed together in a clearance fit manner; the utility model is improved aiming at the wearing area, the design is ingenious, the practicability is high, the wearing area is arranged at the meshing position of the grating plate body and the toothed roller, and the wearing block wrapping the wearing area is detachably arranged in the wearing area, so that the wearing block can be only worn to the wearing area in the working process and not worn to the wearing area, the effect of effectively protecting the wearing area is achieved, the wearing block is made of a heat-resistant and wear-resistant metal composite special ceramic material, the wearing of the grating plate is reduced by utilizing the characteristic that the special ceramic is wear-resistant at high temperature, the service life of the grating plate is prolonged, and compared with the grating plate in the prior art, the wearing block is convenient and quick to replace and the service life is greatly prolonged.
Description
Technical Field
The utility model relates to the field of crushers, in particular to an improved single-tooth roller crusher grid plate.
Background
The single-roller crusher is matched equipment of a sintering machine in steel smelting equipment, and is arranged at the tail part of the sintering machine to crush high-temperature sintered ore produced from the sintering machine. During working, the toothed roller rotates to cut up the hot ore falling between the toothed roller and the grate plate, so as to complete the crushing of the hot sinter. The grate plate is a main part for receiving the sintering piece and assisting in crushing, is also the most severely worn part of the whole single-toothed roller crusher, works in severe environments such as high temperature above 800 ℃, corrosion, strong impact, wear and the like for a long time, has the service life of only 5-8 months, and takes 1-3 months for the whole grate plate to prepare the goods.
The grate plates in the current market are mostly cast and formed integrally, the wear-resistant part is formed by manually overlaying high-alloy welding wires, a large number of overlaying operations need long construction period, and the overlaying welding wires contain expensive rare metals such as nickel, molybdenum, tungsten, niobium and the like, so that the manufacturing cost is high. When the worn comb plate is replaced, the tooth roller is disassembled, and then the direction of the comb plate is integrally changed to use the other end, so that the replacement period is long, and the normal operation time of the sintering machine is influenced; the integrally scrapped grating plates are scrapped only by partial abrasion, so that huge waste is caused; the grating plate which can be repaired and reused is additionally provided with a polishing procedure when being repaired, which is time-consuming and labor-consuming.
In order to solve the problems that the alloy hardness of the wear-resistant layer is reduced and the service life of the grate plate is prolonged by crushing high-temperature sintered ores, water cooling facilities are added in the body, and the manufacturing difficulty and the manufacturing cost are increased; in order to meet the requirements of sintering production, the combined grate plate of the single-toothed roller crusher can meet the requirements of convenient disassembly and convenient maintenance through the examined patent number 201020638693.4, however, the design of the wear-resistant part is unreasonable, the design is insufficient to bear the environmental impact and burn, the service life is short, the grate plate body and the wear-resistant part are pressed and fixed by a pressing block, and when the pressing block fails, the wear-resistant layer part falls. Patent number 201521101683.6 conveniently dismantles the patent of changing single tooth roller breaker comb board protection loose piece, has the unreasonable problem of design, and its wearing layer is little with the body faying surface easily drops, and the bolt damages then easily drops, also does not aim at wearing layer material special design, can not reach the requirement of increase of service life.
In summary, there is a need to develop a grate plate that is convenient to disassemble, replace, and has a prolonged service life.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an improved single-tooth roller crusher grate plate, wherein wear-resisting blocks with a protective effect are detachably arranged at the wear area of the original grate plate, so that the wear-resisting blocks are convenient and quick to replace, and the service life of the wear-resisting blocks is greatly prolonged.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model comprises a grate plate body, wherein the grate plate body comprises a bearing body and wear areas symmetrically arranged on two sides of the bearing body, wear-resistant blocks are wrapped on the wear areas, and the wear-resistant blocks and the wear areas are assembled and fixed together in a clearance fit manner.
Further, the middle part of wearing and tearing district is equipped with the connecting plate, the axis coincidence of connecting plate and comb board body, wear-resisting piece wholly is the U type setting, covers in the both sides of connecting plate.
Further, a groove is formed in the middle of the connecting plate, and the groove corresponds to the protruding block arranged in the center of the wear-resisting block.
Further, the width direction dimension of the connecting plate is consistent with the width direction dimension of the bump.
Further, a connecting hole is formed in the connecting plate, the connecting hole corresponds to a through hole formed in the wear-resistant block, and a fastener penetrates through the through hole and the connecting hole to fix the wear-resistant block and the connecting plate.
Furthermore, the wear-resistant block is manufactured by adopting a multi-element high alloy KmTBCr26NiMo2W5Re heat-resistant wear-resistant metal composite special ceramic casting process.
Further, the bearing body is made of ZG30 CrMo.
Due to the adoption of the technical scheme, the beneficial effects obtained by the utility model are as follows:
the utility model is improved aiming at the wearing area, and has smart design and high practicability. The wearing area is arranged at the meshing position of the grid plate body and the toothed roller, and the wearing block wrapping the wearing area is detachably arranged in the wearing area, so that the wearing block can only be worn in the working process, but not in the wearing area, and the effect of effectively protecting the wearing area is achieved.
The wear-resistant block is made of a multi-element high alloy KmTBCr26NiMo2W5Re heat-resistant wear-resistant metal composite special ceramic material, and the wear of the grate plate is reduced and the service life of the grate plate is prolonged by utilizing the high-temperature wear-resistant characteristic of special ceramic. When the wear-resisting block is worn and needs to be replaced, the bearing body and the toothed roller matched with the grate plate body are not required to be detached, only the wear-resisting block is required to be detached and installed, the grate plate direction is not required to be replaced in the replacement process, the operation time of the sintering machine is greatly prolonged, and convenience and quickness are improved.
Therefore, compared with the grate plate in the prior art, the grate plate is convenient and quick to replace, has greatly prolonged service life and has the popularization necessity.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic side elevational view of the present utility model;
FIG. 3 is a schematic diagram of an exploded construction of the present utility model;
FIG. 4 is a schematic side view of the wear layer of the present utility model;
fig. 5 is a schematic view of the cross-sectional B-B structure of fig. 4.
Wherein, 1, a wear-resistant block; 1-1, through holes; 1-2, protruding blocks; 2. a fastener; 3. a bearing body; 4. a wear zone; 4-1, connecting holes; 4-2, grooves; 4-3, connecting plates.
Description of the embodiments
The utility model is further illustrated by the following examples:
an improved single tooth roller crusher grid plate is shown in fig. 1-5, and comprises a grid plate body, wherein the grid plate body comprises a bearing body 3 and wear areas 4 symmetrically arranged on two sides of the bearing body 3, and the wear areas 4 are arranged at meshing positions of the grid plate body and tooth rollers. Because the grate works in the severe environment of high temperature, corrosion, strong impact and abrasion for a long time, the abrasion zone 4 is easily abraded to enable the grate body to be scrapped, when the worn and scrapped grate is replaced, the toothed roll is required to be disassembled, then the direction of the grate is integrally replaced to use the other end, the replacement period is long, and the normal operation time of the sintering machine is influenced.
In order to improve the service life of the grate plate body, the grate plate is convenient to replace, the replacement time is shortened, the abrasion zone 4 is improved, as shown in fig. 1, the abrasion zone 4 is wrapped with the abrasion-resistant block 1, the abrasion-resistant block 1 plays a role in effectively protecting the abrasion zone 4, the abrasion-resistant block 1 is made of special materials and by a special process, and the service life of the grate plate body is prolonged. The lower bearing body 3 is made of ZG30CrMo, the manufacturing cost is low, the upper wear-resistant block 1 adopts a multi-element high alloy KmTBCr26NiMo2W5Re heat-resistant wear-resistant metal composite special ceramic block casting process, and the service life of the wear-resistant block 1 is 2-3 times of that of a grid plate of a surfacing process after heat treatment.
The wear-resisting block 1 is assembled and fixed together with the wear area 4 through the fastener 2 in a clearance fit manner, the wear-resisting block 1 cannot fall off in the use process, when the wear-resisting block 1 needs to be replaced, the toothed roll and the bearing body 3 matched with the grid plate body do not need to be detached, the wear-resisting block 1 can be detached easily only by detaching the fastener 2, then the new wear-resisting block 1 is assembled, the grid plate direction does not need to be replaced, the replacement is more convenient and quick, and the operation time of the sintering machine is greatly prolonged.
As shown in fig. 3, a connecting plate 4-3 is arranged in the middle of the wear zone 4, the connecting plate 4-3 coincides with the central axis of the grate plate body, and the width dimension of the connecting plate 4-3 is smaller than the width dimension of the bearing body 3. The middle part of connecting plate 4-3 is equipped with recess 4-2, recess 4-2 corresponds with the lug 1-2 that sets up at wear-resisting piece 1 center, the width direction size of connecting plate 4-3 is unanimous with lug 1-2 width direction size, ensures the complete cooperation of lug 1-2 and recess 4-2, becomes an integer after wear-resisting piece 1 covers at connecting plate 4-3 and connects with fastener 2, makes connecting plate 4-3 and wear-resisting piece 1 complex more firm, and the course of working is difficult for droing. The connection between the wear-resistant block 1 and the bearing body 3 is adopted, the connection is mainly based on the connection surface of the wear-resistant block 1 and the connection plate 4-3 of the bearing body 3, the connection of the fastener 2 is an auxiliary connection mode, and when the connection surface of the wear-resistant block 1 and the connection plate is damaged, the replacement is described.
As shown in FIG. 4, the whole wear-resistant block 1 is U-shaped, and is fixedly connected with the wear-resistant block 1 into a whole after being covered on two sides of the connecting plate 4-3, so that the effect of effectively protecting the connecting plate 4-3 at the wearing area 4 is achieved. As shown in fig. 2, the width dimension of the connecting plate 4-3 after being matched with the wear-resistant block 1 is slightly larger than the width dimension of the bearing body 3, so that the wear resistance of the wear-resistant block 1 is increased, and the effect of effectively protecting the bearing body 3 is also achieved.
As shown in fig. 2 and fig. 4, the top of the wear-resistant block 1 is semicircular, so that hot cut ore can conveniently slide from the top to two sides, and hot ore falling between the toothed roller and the grate plate can be easily cut, so that hot sinter ore can be crushed.
As shown in fig. 3 and 5, the connecting plate 4-3 is provided with a connecting hole 4-1, the connecting hole 4-1 corresponds to the through hole 1-1 formed in the wear-resistant block 1, and the fastener 2 passes through the through hole 1-1 and the connecting hole 4-1 to fixedly connect the wear-resistant block 1 and the connecting plate 4-3 into a whole as shown in fig. 1, so that the wear-resistant block 1 is not easy to fall off in the working process, and the fastening piece 2 is fixedly connected to enable the disassembly to be more convenient and the replacement to be quicker.
The line of 10 grate plate bodies is arranged on the 11# machine in 2021, 11 months and 28 days of the company, so that the line is used for 13 months up to now, and long-time shutdown is avoided in the middle. Wherein the high wear is about 30mm and the thickness is substantially wear-free, and is expected to be reusable for at least 3 months. The on-site feedback 11# machine always uses low-alkali ore (the abrasion to equipment is more serious), and according to the judgment, the service life of the low-alkali ore on one side of the grate plate is more than 16 months. 2 grating plates are replaced in the same period. The service life of the grate plate body is 2-3 times that of the grate plate in the prior art, and the grate plate body is necessarily popularized and used.
Finally, it should be noted that: the above examples are only illustrative for the clarity of the utility model and are not meant to be limiting in any way. Other variations or modifications of the above description will be apparent to those of ordinary skill in the art, and it is not intended to be exhaustive of all embodiments, and obvious variations or modifications of the utility model are intended to be within the scope of the utility model.
Claims (7)
1. An improved single tooth roller crusher comb plate which is characterized in that: the novel wear-resistant plate comprises a plate body, wherein the plate body comprises a bearing body (3) and wear areas (4) symmetrically arranged on two sides of the bearing body (3), wear-resistant blocks (1) are wrapped on the wear areas (4), and the wear-resistant blocks (1) are assembled and fixed together in a clearance fit manner with the wear areas (4).
2. An improved single tooth roller crusher grate as in claim 1 wherein: the middle part of wearing and tearing district (4) is equipped with connecting plate (4-3), connecting plate (4-3) and the coincidence of the axis of comb board body, wear-resisting piece (1) wholly are U type setting, cover in the both sides of connecting plate (4-3).
3. An improved single tooth roller crusher grate as in claim 2 wherein: the middle part of the connecting plate (4-3) is provided with a groove (4-2), and the groove (4-2) corresponds to the convex block (1-2) arranged at the center of the wear-resisting block (1).
4. An improved grating plate for a single tooth roller crusher as claimed in claim 3, wherein the width dimension of said web (4-3) corresponds to the width dimension of the projections (1-2).
5. An improved single tooth roller crusher grate as in claim 4 wherein: the connecting plate (4-3) is provided with a connecting hole (4-1), the connecting hole (4-1) corresponds to the through hole (1-1) formed in the wear-resisting block (1), and the fastener (2) penetrates through the through hole (1-1) and the connecting hole (4-1) to fix the wear-resisting block (1) and the connecting plate (4-3).
6. An improved single tooth roller crusher grate as in claim 5 wherein: the wear-resistant block (1) is manufactured by adopting a multi-element high alloy KmTBCr26NiMo2W5Re heat-resistant wear-resistant metal composite special ceramic casting process.
7. The improved single tooth roller crusher grate of any one of claims 1-6 wherein: the bearing body (3) is made of ZG30 CrMo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320086245.5U CN219129409U (en) | 2023-01-30 | 2023-01-30 | Improved single tooth roller crusher grid plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320086245.5U CN219129409U (en) | 2023-01-30 | 2023-01-30 | Improved single tooth roller crusher grid plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219129409U true CN219129409U (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320086245.5U Active CN219129409U (en) | 2023-01-30 | 2023-01-30 | Improved single tooth roller crusher grid plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219129409U (en) |
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2023
- 2023-01-30 CN CN202320086245.5U patent/CN219129409U/en active Active
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