CN211586856U

CN211586856U - Coal injection medium speed mill grinding roller

Info

Publication number: CN211586856U
Application number: CN201922284283.8U
Authority: CN
Inventors: 刘忠建; 汪永寿; 彭渝建
Original assignee: Chengyu Vanadium Titanium Science and Technology Co Ltd
Current assignee: Chengyu Vanadium Titanium Science and Technology Co Ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-29
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to an iron-smelting coal injection technical field just discloses a coal injection intermediate speed grinds grinding roller, including the roller support, it has the pivot that runs through the roller support and extend to roller support bottom to peg graft in roller support top, the pivot cup joints the bearing that is located roller support bottom outward, the bearing cup joints the grinding roller main part outward, grinding roller main part bottom has cup jointed the roller shell, set up in the roller shell and be located the installation cavity, fixed mounting has electric heating wire in the installation cavity, the screw hole has been seted up in the grinding roller main part, the thread groove has been seted up in the roller shell. This coal injection intermediate speed grinding roller has solved current grinding roller and just need maintain the change after using a period, and maintenance intensity of labour is big, the maintenance needs time long, and the maintenance can lead to the intermediate speed coal pulverizer to stop working, influences the production progress, generally is through hot-blast stoving buggy simultaneously, and efficiency is not high enough, influences production efficiency's problem.

Description

Coal injection medium speed mill grinding roller

Technical Field

The utility model relates to an iron-making coal injection technical field specifically is a coal injection intermediate speed grinds grinding roller.

Background

The medium speed coal mill is suitable for the powdering and milling operation of grinding medium hardness materials such as bituminous coal, lean coal and the like, can be widely applied to powder making systems in the industries of electric power, metallurgy, building materials, chemical industry and the like, particularly in a blast furnace coal injection and powder making system which needs to use a large amount of bituminous coal, is the most important large-scale equipment in a coal-to-liquid powder making system, and has the advantages of safe operation, economical efficiency and great importance for the normal operation of coal-to-liquid.

The existing grinding roller needs to be maintained and replaced after being used for a period of time, the maintenance labor intensity is high, the maintenance time is long, the medium-speed coal mill stops running due to maintenance, the production progress is influenced, meanwhile, the efficiency is not high enough due to the fact that pulverized coal is generally dried through hot air at present, and the production efficiency is influenced, so that the coal-spraying medium-speed grinding roller is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a coal injection intermediate speed grinds grinding roller possesses the change of being convenient for and maintains, improves the advantage of buggy drying efficiency, has solved current grinding roller and just need maintain the change after using a period, and maintenance intensity of labour is big, the maintenance needs time long, and the maintenance can lead to intermediate speed coal pulverizer to stop the operation, influences the production progress, generally is through hot-blast stoving buggy simultaneously, and efficiency is not high enough, influences production efficiency's problem.

(II) technical scheme

For realizing the above-mentioned change of being convenient for maintain, improve buggy drying efficiency's purpose, the utility model provides a following technical scheme: a coal-injection medium-speed grinding roller comprises a roller support, wherein a rotating shaft penetrating through the roller support and extending to the bottom of the roller support is inserted into the top of the roller support, a bearing positioned at the bottom of the roller support is sleeved outside the rotating shaft, a grinding roller main body is sleeved outside the bearing, a roller sleeve is sleeved at the bottom of the grinding roller main body, a mounting cavity is formed in the roller sleeve, an electric heating wire is fixedly installed in the mounting cavity, a threaded hole is formed in the grinding roller main body, a threaded groove is formed in the roller sleeve, a threaded hole is connected with a fastening stud penetrating through the threaded hole and extending into the threaded groove in a threaded manner, a clamping groove is formed in one side, close to the bearing, of the fastening stud, a cavity positioned between the bearing and the threaded hole is formed in the grinding roller main body, a pressure spring is fixedly connected to one side, close to the bearing, of the pressure spring, far, the grinding roller comprises a grinding roller body and is characterized in that the top of the grinding roller body is provided with a sliding groove communicated with the cavity, the top of the clamping rod is fixedly connected with a shifting rod penetrating through the sliding groove and extending to the top of the grinding roller body, and a dust isolating curtain positioned in the sliding groove is fixedly connected between the shifting rod and the grinding roller body.

Preferably, the top of the roller support is fixedly connected with a roller support end cover positioned at the top of the rotating shaft, the top of the roller support end cover is fixedly connected with a cover plate, and a sealant is filled between the roller support end cover and the roller support.

Preferably, the top of the grinding roller main body is movably connected with an upper end cover, the bottom of the roller sleeve is movably connected with a lower end cover, and fluororubber sealing rings are arranged in the upper end cover and the lower end cover.

Preferably, the electric heating wire is in contact with the side wall of the roller sleeve, the fastening stud is in threaded connection with the thread groove, and the top of the fastening stud is provided with a cross groove.

Preferably, the number of the fastening studs is more than four, the pressure spring is a high-temperature-resistant spring, and the clamping rod is clamped in the clamping groove when the pressure spring is not compressed.

Preferably, the length of the sliding groove is equal to the compression length of a pressure spring, and the clamping rod is located in the cavity when the pressure spring is completely compressed.

(III) advantageous effects

Compared with the prior art, the utility model provides a coal injection intermediate speed grinds grinding roller possesses following beneficial effect:

the coal-injection medium-speed grinding roller comprises a roller sleeve, a roller main body, a clamping rod, a clamping screw, a pressing spring, a clamping screw, a driving lever, a clamping rod, a pressing spring, a pressing rod, a clamping screw, a pressing spring, a clamping rod, a clamping screw, a roller sleeve and a grinding roller main body, and the purpose of facilitating replacement and maintenance and improving the drying efficiency, the maintenance labor intensity is large, the maintenance time is long, the medium speed coal mill can stop running during maintenance, the production progress is influenced, meanwhile, the efficiency is not high enough, and the production efficiency is influenced by drying pulverized coal through hot air generally at present.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a partially enlarged schematic view of a portion a shown in fig. 1 according to the present invention.

In the figure: the roller type dust-proof roller comprises a roller support 1, a rotating shaft 2, a bearing 3, a grinding roller main body 4, a roller sleeve 5, a mounting cavity 6, an electric heating wire 7, a threaded hole 8, a threaded groove 9, a fastening stud 10, a clamping groove 11, a cavity 12, a pressure spring 13, a clamping rod 14, a sliding groove 15, a deflector rod 16 and a dust-proof curtain 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a coal-injection medium-speed grinding roller comprises a roller bracket 1, a rotating shaft 2 penetrating through the roller bracket 1 and extending to the bottom of the roller bracket 1 is inserted into the top of the roller bracket 1, a roller bracket end cover positioned on the top of the rotating shaft 2 is fixedly connected to the top of the roller bracket 1, a cover plate is fixedly connected to the top of the roller bracket end cover, sealant is filled between the roller bracket end cover and the roller bracket 1, a bearing 3 positioned on the bottom of the roller bracket 1 is sleeved outside the rotating shaft 2, a grinding roller main body 4 is sleeved outside the bearing 3, an upper end cover is movably connected to the top of the grinding roller main body 4, a roller sleeve 5 is sleeved at the bottom of the grinding roller main body 4, a lower end cover is movably connected to the bottom of the roller sleeve 5, both the upper end cover and the lower end cover are internally provided with a fluororubber seal ring, a mounting cavity 6, a threaded hole 8 is formed in the grinding roller main body 4, a thread groove 9 is formed in the roller sleeve 5, a fastening stud 10 which penetrates through the threaded hole 8 and extends into the thread groove 9 is connected to the thread of the threaded hole 8 in a threaded manner, the fastening stud 10 is connected with the thread groove 9 in a threaded manner, a cross groove is formed in the top of the fastening stud 10, more than four fastening studs 10 are arranged, a clamping groove 11 is formed in one side, close to the bearing 3, of the fastening stud 10, a cavity 12 which is located between the bearing 3 and the threaded hole 8 is formed in the grinding roller main body 4, a pressure spring 13 is fixedly connected to one side, close to the bearing 3, of the cavity 12, the pressure spring 13 is a high-temperature-resistant spring, a clamping rod 14 which penetrates through the grinding roller main body 4 and extends into the clamping groove 11 is fixedly connected to one side, away from the cavity 12, the clamping rod 14, the top of the grinding roller main body 4 is provided with a sliding groove 15 communicated with the cavity 12, the length of the sliding groove 15 is equal to the compression length of the pressure spring 13, the top of the clamping rod 14 is fixedly connected with a shifting rod 16 penetrating through the sliding groove 15 and extending to the top of the grinding roller main body 4, and a dust-proof curtain 17 positioned in the sliding groove 15 is fixedly connected between the shifting rod 16 and the grinding roller main body 4.

When in use, a user can sleeve the roller sleeve 5 on the grinding roller main body 4, then the roller sleeve 5 and the grinding roller main body 4 are fixed through the fastening studs 10, the clamping rod 14 is clamped in the clamping groove 11, because the clamping rod 14 is clamped with the fastening stud 10 through the pressure spring 13, the fastening stud 10 cannot rotate when in work, the roller sleeve 5 and the grinding roller main body 4 are prevented from being separated when in work, the roller sleeve 5 is heated through the arrangement of the electric heating wire 7, when the roller sleeve 5 grinds the coal dust, the temperature generated by the electric heating wire 7 is transferred to the coal dust through the roller sleeve 5, the drying of the coal dust is accelerated, when the maintenance roller sleeve 5 needs to be disassembled, a user only needs to push the poking rod 16 to extrude the pressure spring 13, so that the clamping rod 14 is separated from the clamping groove 11, then the fastening stud 10 is rotated and taken out, so that the roller sleeve 5 and the grinding roller main body 4 can be separated, and the purposes of facilitating replacement and maintenance and improving the drying efficiency of the pulverized coal are achieved.

In summary, according to the coal injection medium speed grinding roller, a roller sleeve 5 is sleeved on a grinding roller main body 4 by a user, then the roller sleeve 5 and the grinding roller main body 4 are fixed by a fastening stud 10, and a clamping rod 14 is clamped in a clamping groove 11, because the clamping rod 14 is clamped with the fastening stud 10 by a pressure spring 13, the fastening stud 10 can not rotate when working, the roller sleeve 5 and the grinding roller main body 4 are prevented from separating in working, the roller sleeve 5 is heated by arranging an electric heating wire 7, when the roller sleeve 5 grinds coal dust, the temperature generated by the electric heating wire 7 is transferred to the coal dust by the roller sleeve 5, the drying of the coal dust is accelerated, when the roller sleeve 5 needs to be disassembled and maintained, the user only needs to push a driving lever 16 to push the pressure spring 13, the clamping rod 14 is separated from the clamping groove 11, then the fastening stud 10 is rotated and taken out, so that the roller sleeve 5 and the grinding roller main body 4 can be separated, the purpose of improving buggy drying efficiency to effectual having solved current grinding roller and just needing to maintain the change after using a period, maintenance intensity of labour is big, the maintenance needs time long, and the maintenance can lead to medium speed pulverizer to stop working, influences the production progress, generally through hot-blast stoving buggy simultaneously, efficiency is not high enough, influences production efficiency's problem.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a coal injection intermediate speed grinding roller, includes roller support (1), its characterized in that: the roller support is characterized in that a rotating shaft (2) penetrating through the roller support (1) and extending to the bottom of the roller support (1) is inserted into the top of the roller support (1), a bearing (3) located at the bottom of the roller support (1) is sleeved outside the rotating shaft (2), a grinding roller main body (4) is sleeved outside the bearing (3), a roller sleeve (5) is sleeved at the bottom of the grinding roller main body (4), a mounting cavity (6) is formed in the roller sleeve (5), an electric heating wire (7) is fixedly installed in the mounting cavity (6), a threaded hole (8) is formed in the grinding roller main body (4), a threaded groove (9) is formed in the roller sleeve (5), a fastening stud (10) penetrating through the threaded hole (8) and extending into the threaded groove (9) is connected to the inner thread of the threaded hole (8), a clamping groove (11) is formed in one side, close to the bearing (, the grinding roller is characterized in that a cavity (12) located between a bearing (3) and a threaded hole (8) is formed in the grinding roller main body (4), one side of the cavity (12) close to the bearing (3) is fixedly connected with a pressure spring (13), one side of the pressure spring (13) far away from the cavity (12) is fixedly connected with a clamping rod (14) penetrating through the grinding roller main body (4) and extending into a clamping groove (11), a sliding groove (15) communicated with the cavity (12) is formed in the top of the grinding roller main body (4), a shifting rod (16) penetrating through the sliding groove (15) and extending to the top of the grinding roller main body (4) is fixedly connected with the top of the clamping rod (14), and a dust isolating curtain (17) located in the sliding groove (15) is fixedly connected between the shifting rod (16) and.

2. The coal injection medium speed grinding roller according to claim 1, characterized in that: the roller support is characterized in that a roller support end cover located at the top of the rotating shaft (2) is fixedly connected to the top of the roller support (1), a cover plate is fixedly connected to the top of the roller support end cover, and a sealant is filled between the roller support end cover and the roller support (1).

3. The coal injection medium speed grinding roller according to claim 1, characterized in that: the top of the grinding roller main body (4) is movably connected with an upper end cover, the bottom of the roller sleeve (5) is movably connected with a lower end cover, and fluororubber sealing rings are arranged in the upper end cover and the lower end cover.

4. The coal injection medium speed grinding roller according to claim 1, characterized in that: the electric heating wire (7) is in contact with the side wall of the roller sleeve (5), the fastening stud (10) is in threaded connection with the thread groove (9), and the top of the fastening stud (10) is provided with a cross groove.

5. The coal injection medium speed grinding roller according to claim 1, characterized in that: the number of the fastening studs (10) is more than four, the pressure spring (13) is a high-temperature-resistant spring, and the clamping rod (14) is clamped into the clamping groove (11) when the pressure spring (13) is not compressed.

6. The coal injection medium speed grinding roller according to claim 1, characterized in that: the length of the sliding groove (15) is equal to the compression length of the pressure spring (13), and the clamping rod (14) is positioned in the cavity (12) when the pressure spring (13) is completely compressed.