CN215843353U - Composite lining plate for medium-speed coal mill - Google Patents
Composite lining plate for medium-speed coal mill Download PDFInfo
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- CN215843353U CN215843353U CN202122153093.XU CN202122153093U CN215843353U CN 215843353 U CN215843353 U CN 215843353U CN 202122153093 U CN202122153093 U CN 202122153093U CN 215843353 U CN215843353 U CN 215843353U
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- lining plate
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- coal mill
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Abstract
The utility model discloses a composite lining plate for a medium-speed coal mill, which comprises a lining plate base body, wherein a slope limiting plate is arranged on one side of the lining plate base body, a binder is arranged on the periphery of the inside of a mounting groove, a metal ceramic composite plate is arranged inside the mounting groove, a metal substrate is arranged at the bottom end of the inside of the metal ceramic composite plate, a plurality of ceramic particles are arranged at the top end of the metal substrate at equal intervals, and a Ni-Ti composite coating is arranged at the top end of the ceramic particles. According to the utility model, the impact-resistant layer of the carbon steel plate and the sound-absorbing cotton layer of the glass fiber are arranged in the lining plate matrix, so that the impact-resistant layer of the carbon steel plate has high structural strength and impact resistance, the high-temperature-resistant layer and the sound-absorbing cotton layer of the glass fiber are used in a high-temperature environment, the noise can be reduced, and the chromium carbide wear-resistant layer and the corrosion-resistant layer have strong corrosion resistance, are wear-resistant and durable, so that the overall structural performance of the lining plate matrix is improved, and the service life of the lining plate is prolonged to a certain extent.
Description
Technical Field
The utility model relates to the technical field of millstone lining plates, in particular to a composite lining plate for a medium-speed coal mill.
Background
The medium speed coal mill is a coal mill with the working rotating speed of 50-300 r/min, belongs to blast furnace iron-making auxiliary material preparation and processing professional equipment, can provide suitable auxiliary material-coal powder for a blast furnace iron-making system, and in the work of the medium speed coal mill, because coal materials and the like can cause impact and abrasion on a lining plate of the coal mill in the work, the requirement on the lining plate installed in the coal mill is high, and a plurality of problems still exist in the use process of the existing composite lining plate for the coal mill, and the specific problems are as follows:
1. the existing composite lining plate for the coal mill has low corrosion resistance in the use process, and the service life of the composite lining plate can be influenced;
2. when the composite lining plate for the existing coal mill is used, ceramic particles are easy to break under the action of rolling or impact;
3. the existing lining plate for the coal mill has poor connection effect between the composite plate and the lining plate base body in the using process, so that the overall strength of the existing lining plate is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a composite lining plate for a medium-speed coal mill, which aims to solve the problems that the corrosion resistance is low, ceramic particles are easy to break under the action of rolling or impact, the connection effect between a composite plate and a lining plate substrate is poor and the like in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a compound welt for medium speed coal mill, includes the welt base member, one side of welt base member is provided with domatic limiting plate, just the opposite side of welt base member is provided with spacing arch, the intermediate position on the inside top of welt base member is provided with the mounting groove, just the inside periphery of mounting groove is provided with the binder, the internally mounted of mounting groove has the metal ceramic composite board, just the inside bottom of metal ceramic composite board is provided with metal substrate, metal substrate's top equidistance is provided with a plurality of ceramic particles, just ceramic particle's top is provided with the compound cladding material of Ni-Ti.
Preferably, a chromium carbide wear-resistant layer is arranged at the top end inside the lining plate substrate, and a corrosion-resistant layer is arranged at the bottom end of the chromium carbide wear-resistant layer.
Preferably, the bottom of the corrosion-resistant layer is provided with a high-temperature-resistant layer, and the bottom of the high-temperature-resistant layer is provided with a glass fiber sound-absorbing cotton layer.
Preferably, the bottom on fine sound cotton layer of inhaling of glass is provided with the carbon steel board and is able to bear or endure the impact layer, just the inside distribution on carbon steel board is able to bear or endure the impact layer has the carbon steel layer, the medial extremity bonding of carbon steel board is had the slipmat.
Preferably, the outer diameter of the metal ceramic composite plate is matched with the inner diameter of the mounting groove, and the metal ceramic composite plate is fixedly connected inside the mounting groove through a bonding agent.
Preferably, both sides of the top end in the metal ceramic composite plate are provided with a placing groove, and the bottom end in the placing groove is provided with a first threaded hole.
Preferably, both sides of the bottom end in the mounting groove are provided with second threaded holes, and the second threaded holes are consistent with the first threaded holes in size.
Preferably, the second threaded hole and the first threaded hole are movably connected with a connecting bolt, and a threaded bonding material is coated on the outer portion of the connecting bolt.
Preferably, the second threaded hole and the first threaded hole are internally provided with internal threads, and the connecting bolt is externally provided with external threads matched with the internal threads.
Compared with the prior art, the utility model has the beneficial effects that:
(1) this kind of intermediate speed grinds compound welt for coal machine, the carbon steel plate that sets up through the inside at the welt base member is shock-resistant layer and the cotton layer of fine sound absorption of glass, the carbon steel plate is shock-resistant layer structural strength height, impact resistance is high, high temperature resistant layer and the cotton layer of fine sound absorption of glass use under high temperature environment, can the noise reduction, chromium carbide wearing layer and corrosion-resistant layer corrosion resisting property are strong, wear-resisting durable, thereby make the overall structure performance of welt base member obtain improving, then the life of welt has been prolonged to a certain extent.
(2) According to the composite lining plate for the medium-speed coal mill, the Ni-Ti composite coating is formed on the surface of the ceramic particles by the chemical plating method through the ceramic particles arranged at equal intervals on the top end of the metal substrate, so that the binding force between the ceramic particles and the metal substrate is enhanced, the ceramic particles are prevented from falling off under the action of high stress, the overall toughness of the ceramic particles is improved, the fatal defect caused by high brittleness of ceramic material application is overcome, and the ceramic particles are prevented from being broken under rolling or impact.
(3) This kind of compound welt for medium speed coal mill, mounting groove through the top setting inside the welt base member, can paint the binder all around of cermet composite sheet and then arrange the mounting groove in inside, then can paint bonding material again in connecting bolt's outside, and rotate connecting bolt and make connecting bolt can insert inside first screw hole and the second screw hole, can make cermet composite sheet fixed connection in the inside of mounting groove under binder and connecting bolt's effect, make the connection between welt base member and the cermet composite sheet more firm.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the expanded structure of the present invention;
FIG. 4 is a schematic view of a partially cut-away structure of a cermet composite plate according to the present invention;
fig. 5 is a partial sectional structural schematic view of the liner substrate of the present invention.
In the figure: 1. a liner substrate; 101. a slope limiting plate; 102. a limiting bulge; 103. a chromium carbide wear layer; 104. a corrosion-resistant layer; 105. a carbon steel plate impact resistant layer; 106. a sound absorbing cotton layer of glass fiber; 107. a high temperature resistant layer; 2. a binder; 3. a metal ceramic composite plate; 301. a placement groove; 302. a first threaded hole; 303. a Ni-Ti composite plating layer; 304. ceramic particles; 305. a metal substrate; 4. mounting grooves; 401. a second threaded hole; 402. and connecting the bolts.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention is shown: a composite lining plate for a medium-speed coal mill comprises a lining plate base body 1, wherein a slope limiting plate 101 is arranged on one side of the lining plate base body 1, a limiting bulge 102 is arranged on the other side of the lining plate base body 1, a chromium carbide wear-resistant layer 103 is arranged at the top end inside the lining plate base body 1, a corrosion-resistant layer 104 is arranged at the bottom end of the chromium carbide wear-resistant layer 103, and the chromium carbide wear-resistant layer 103 and the corrosion-resistant layer 104 are strong in corrosion resistance, wear-resistant and durable;
the bottom end of the corrosion-resistant layer 104 is provided with a high-temperature-resistant layer 107, the bottom end of the high-temperature-resistant layer 107 is provided with a glass fiber sound-absorbing cotton layer 106, and the high-temperature-resistant layer 107 and the glass fiber sound-absorbing cotton layer 106 are used in a high-temperature environment, so that noise can be reduced;
the bottom end of the glass fiber sound-absorbing cotton layer 106 is provided with a carbon steel plate impact-resistant layer 105, the carbon steel layer is distributed in the carbon steel plate impact-resistant layer 105, the inner side end of the carbon steel plate impact-resistant layer 105 is bonded with an anti-slip pad, and the carbon steel plate impact-resistant layer 105 is high in structural strength and impact resistance;
the middle position of the top end in the lining plate base body 1 is provided with a mounting groove 4, the periphery in the mounting groove 4 is provided with a binder 2, a metal ceramic composite plate 3 is arranged in the mounting groove 4, the outer diameter of the metal ceramic composite plate 3 is matched with the inner diameter of the mounting groove 4, the metal ceramic composite plate 3 is fixedly connected in the mounting groove 4 through the binder 2, two sides of the top end in the metal ceramic composite plate 3 are both provided with a placing groove 301, the bottom end in the placing groove 301 is provided with a first threaded hole 302, two sides of the bottom end in the mounting groove 4 are both provided with a second threaded hole 401, the size of the second threaded hole 401 is consistent with that of the first threaded hole 302, the second threaded hole 401 is movably connected with a connecting bolt 402 in the first threaded hole 302, the outer part of the connecting bolt 402 is coated with a threaded bonding material, and the inner parts of the second threaded hole 401 and the first threaded hole 302 are provided with internal threads, the outer part of the connecting bolt 402 is provided with an external thread matched with the internal thread, so that the metal ceramic composite plate 3 can be fixedly connected to the inside of the mounting groove 4 under the action of the binder 2 and the connecting bolt 402, and the connection between the lining plate base body 1 and the metal ceramic composite plate 3 is firmer;
the bottom end inside the metal ceramic composite plate 3 is provided with a metal substrate 305, the top end of the metal substrate 305 is provided with a plurality of ceramic particles 304 at equal intervals, the top ends of the ceramic particles 304 are provided with Ni-Ti composite coatings 303, and the Ni-Ti composite coatings 303 are formed on the surfaces of the ceramic particles 304 by a chemical plating method to enhance the binding force between the ceramic particles 304 and the metal substrate 305, so that the ceramic particles 304 are prevented from falling off under the action of high stress, the overall toughness of the ceramic particles 304 is improved, the fatal defect caused by high brittleness of the ceramic material is overcome, and the ceramic particles 304 are prevented from being broken under rolling or impact.
The working principle is as follows: when the ceramic particle composite plate is used, the periphery of the metal ceramic composite plate 3 can be coated with the adhesive 2 and then placed in the mounting groove 4, then the outside of the connecting bolt 402 can be coated with the adhesive material, the connecting bolt 402 is rotated to enable the connecting bolt 402 to be inserted into the first threaded hole 302 and the second threaded hole 401, the metal ceramic composite plate 3 can be fixedly connected in the mounting groove 4 under the action of the adhesive 2 and the connecting bolt 402, so that the connection between the lining plate base body 1 and the metal ceramic composite plate 3 is firmer, the Ni-Ti composite plating layer 303 is formed on the surface of the ceramic particle 304 by using a chemical plating method to enhance the bonding force between the ceramic particle 304 and the metal substrate 305, the ceramic particle 304 is prevented from falling off under the action of high stress, the integral toughness of the ceramic particle 304 is improved, the fatal defect caused by high brittleness of the ceramic material is solved, and the ceramic particle 304 is prevented from being broken under the conditions of rolling or impact, the carbon steel plate impact-resistant layer 105 is high in structural strength and impact-resistant force, the high-temperature-resistant layer 107 and the glass fiber sound-absorbing cotton layer 106 are used in a high-temperature environment, noise can be reduced, the chromium carbide wear-resistant layer 103 and the corrosion-resistant layer 104 are high in corrosion resistance and wear-resistant and durable, so that the overall structural performance of the lining plate base body 1 is improved, and the service life of the lining plate is prolonged to a certain extent.
Claims (9)
1. The utility model provides a compound welt for medium speed coal pulverizer which characterized in that: including welt base member (1), one side of welt base member (1) is provided with domatic limiting plate (101), just the opposite side of welt base member (1) is provided with spacing arch (102), the intermediate position on the inside top of welt base member (1) is provided with mounting groove (4), just the inside periphery of mounting groove (4) is provided with binder (2), the internally mounted of mounting groove (4) has cermet composite sheet (3), just the inside bottom of cermet composite sheet (3) is provided with metal substrate (305), the top equidistance of metal substrate (305) is provided with a plurality of ceramic particles (304), just the top of ceramic particle (304) is provided with Ni-Ti composite coating (303).
2. The composite lining plate for the medium speed coal mill according to claim 1, which is characterized in that: the wear-resistant lining plate is characterized in that a chromium carbide wear-resistant layer (103) is arranged at the top end inside the lining plate base body (1), and a corrosion-resistant layer (104) is arranged at the bottom end of the chromium carbide wear-resistant layer (103).
3. The composite lining plate for the medium speed coal mill according to claim 2, wherein: the bottom of the corrosion-resistant layer (104) is provided with a high temperature resistant layer (107), and the bottom of the high temperature resistant layer (107) is provided with a glass fiber sound-absorbing cotton layer (106).
4. The composite lining plate for the medium speed coal mill according to claim 3, wherein: the bottom on fine cotton layer (106) of inhaling of glass is provided with carbon steel board impact-resistant layer (105), just the interior distribution of carbon steel board impact-resistant layer (105) has the carbon steel layer, the medial extremity bonding of carbon steel board impact-resistant layer (105) has the slipmat.
5. The composite lining plate for the medium speed coal mill according to claim 1, which is characterized in that: the outer diameter of the metal ceramic composite board (3) is matched with the inner diameter of the mounting groove (4), and the metal ceramic composite board (3) is fixedly connected to the inside of the mounting groove (4) through a bonding agent (2).
6. The composite lining plate for the medium speed coal mill according to claim 1, which is characterized in that: both sides of the top end in the metal ceramic composite board (3) are provided with a placing groove (301), and the bottom end in the placing groove (301) is provided with a first threaded hole (302).
7. The composite lining plate for the medium speed coal mill according to claim 1, which is characterized in that: the two sides of the bottom end in the mounting groove (4) are provided with second threaded holes (401), and the sizes of the second threaded holes (401) and the first threaded holes (302) are the same.
8. The composite lining plate for the medium speed coal mill according to claim 7, wherein: and a connecting bolt (402) is movably connected inside the second threaded hole (401) and the first threaded hole (302), and a threaded bonding material is coated outside the connecting bolt (402).
9. The composite lining plate for the medium speed coal mill according to claim 8, wherein: the inner parts of the second threaded hole (401) and the first threaded hole (302) are provided with internal threads, and the outer part of the connecting bolt (402) is provided with external threads matched with the internal threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122153093.XU CN215843353U (en) | 2021-09-06 | 2021-09-06 | Composite lining plate for medium-speed coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122153093.XU CN215843353U (en) | 2021-09-06 | 2021-09-06 | Composite lining plate for medium-speed coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215843353U true CN215843353U (en) | 2022-02-18 |
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ID=80256774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122153093.XU Active CN215843353U (en) | 2021-09-06 | 2021-09-06 | Composite lining plate for medium-speed coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215843353U (en) |
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2021
- 2021-09-06 CN CN202122153093.XU patent/CN215843353U/en active Active
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