CN114985092B - Be applied to drainage structure on coal pulverizer - Google Patents
Be applied to drainage structure on coal pulverizer Download PDFInfo
- Publication number
- CN114985092B CN114985092B CN202210603742.8A CN202210603742A CN114985092B CN 114985092 B CN114985092 B CN 114985092B CN 202210603742 A CN202210603742 A CN 202210603742A CN 114985092 B CN114985092 B CN 114985092B
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- China
- Prior art keywords
- coal
- barrel
- coal pulverizer
- gear
- loop bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003245 coal Substances 0.000 title claims abstract description 100
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims description 20
- 238000005485 electric heating Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000227 grinding Methods 0.000 description 9
- 244000309464 bull Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention provides a drainage structure applied to a coal mill, which relates to the technical field of coal mills and comprises a coal mill barrel, a drainage assembly and a drying assembly, wherein the drainage assembly comprises a loop bar, a spring, a flow limiting sleeve and a flow limiting block, the top of the coal mill barrel is rotationally connected with a coal dropping pipe, one end of the loop bar is fixedly connected to the top of an inner cavity of the coal mill barrel, the flow limiting sleeve is fixedly connected to the other end of the loop bar and sleeved on the outer side of the coal dropping pipe, the spring is arranged at the upper end of the loop bar, and the limiting block is fixedly connected to the inner wall of the coal mill barrel.
Description
Technical Field
The invention relates to the technical field of coal mills, in particular to a drainage structure applied to a coal mill.
Background
The medium speed roller type coal mill is mechanical equipment capable of grinding a certain volume of raw coal blocks into fine coal powder particles, and is widely applied to coal injection systems of large-scale factories such as power generation, smelting and the like; the grinding part of the medium speed roller type coal mill consists of a rotating grinding ring and a fixed and autorotatable grinding roller rolling along the grinding ring, grinding and drying of raw coal are simultaneously carried out, primary air uniformly enters the periphery of the grinding ring through a nozzle ring, and a pulverized coal mixture tangentially thrown out of the grinding ring after grinding is dried and conveyed to a separator at the upper part of the mill, and is separated in the separator.
The invention discloses a drainage structure applied to a coal mill, which is characterized in that the upper end of the existing coal mill is lack of a drainage structure with perfect functions, so that the efficiency of coal powder discharging is influenced, in addition, in the discharging process, the coal powder is easy to remain moisture, and later processing is required.
Disclosure of Invention
The invention aims to provide a drainage structure applied to a coal mill so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a be applied to drainage structure on coal pulverizer, includes coal pulverizer barrel, drainage subassembly and drying module, the drainage subassembly includes loop bar, spring, current-limiting sleeve and current-limiting piece, the top rotation of coal pulverizer barrel is connected with the coal breakage pipe, the one end fixed connection of loop bar is at the top of coal pulverizer barrel inner chamber, current-limiting sleeve fixed connection is at the other end of loop bar, and overlaps the outside of establishing at the coal breakage pipe, the upper end at the loop bar is installed to the spring, stopper fixed connection is on the inner wall of coal pulverizer barrel.
Preferably, the drying component comprises a motor, a first gear, a second gear and an electric heating wire, wherein the motor is arranged at the top of the coal mill barrel, the first gear is connected to an output shaft of the motor, the second gear is fixedly connected to the upper end of the coal dropping pipe, the first gear is meshed with the second gear, and the electric heating wire is fixedly connected to the outer side of the coal dropping pipe and is positioned in an inner cavity of the coal mill barrel.
Preferably, the top of the coal mill barrel is provided with a powder outlet pipe, and a plurality of groups of powder outlet pipes are uniformly distributed.
Preferably, the side wall of the current-limiting sleeve is obliquely arranged, the inner wall of the upper end of the coal mill barrel is obliquely arranged, and the inclination angles of the two are the same.
Preferably, the position that coal pulverizer barrel top is close to the motor rotates and is connected with the bull stick, be equipped with the driving medium between bull stick and the motor output shaft, the lower extreme of bull stick is equipped with the screw thread, the spiro union has movable rod on the screw thread, the movable rod is L type, and the vertical section of movable rod slides along the lateral wall of loop bar.
Preferably, the flow limiting blocks are provided with a plurality of groups and are uniformly distributed on the inner wall of the coal mill barrel.
Preferably, the inner wall of the upper end of the coal mill barrel is also provided with an ultraviolet lamp.
Preferably, a guide plate is further arranged on the side wall of the coal dropping pipe, a mounting plate is arranged between the guide plate and the coal dropping pipe, and an axial flow fan is further arranged on the mounting plate.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, through the designed drainage mechanism and through the drainage of the current limiting sleeve and the current limiting block, the technical problem of serious energy loss caused by the fact that the powder-air mixed airflow directly impacts on the inner barrel of the coal mill is avoided, and the powder-air mixed airflow speed is further improved so as to improve the pulverizing capacity and quality of the coal mill.
(2) According to the invention, through the designed drying mechanism, the coal dropping pipe is driven to rotate by the motor, so that the arranged heating wire can heat the passing powder air mixed airflow, the moisture of coal powder is further reduced, and the quality of the coal powder is improved.
(3) According to the invention, the movable rod periodically impacts the current-limiting sleeve by utilizing the kinetic energy of the motor, so that the loss caused by adhesion of some pulverized coal at the bottom of the current-limiting sleeve is avoided, and the arranged axial flow fan can be selectively started to provide an acceleration function for the flow velocity of the powder-wind mixed airflow, so that the overall drainage effect is improved.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of an embodiment 1 of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic diagram of a current limiting block according to the present invention;
FIG. 4 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 3 of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
the coal mill comprises a 1-coal mill barrel, a 2-drainage component, a 201-sleeve rod, a 202-spring, a 203-current limiting sleeve, a 204-current limiting block, a 3-drying component, a 301-motor, a 302-first gear, a 303-second gear, a 304-heating wire, a 4-coal dropping pipe, a 5-powder outlet pipe, a 6-rotating rod, a 7-transmission piece, 8-threads, a 9-movable rod, a 10-ultraviolet lamp, a 11-guide plate, a 12-mounting plate and a 13-axial flow fan.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a be applied to drainage structure on coal pulverizer, including coal pulverizer barrel 1, drainage subassembly 2 and drying module 3, drainage subassembly 2 includes loop bar 201, spring 202, current-limiting sleeve 203 and current-limiting block 204, the top rotation of coal pulverizer barrel 1 is connected with coal breakage pipe 4, the one end fixed connection of loop bar 201 is at the top of coal pulverizer barrel 1 inner chamber, current-limiting sleeve 203 fixed connection is at the other end of loop bar 201, and the cover is established in the outside of coal breakage pipe 4, spring 202 installs the upper end at loop bar 201, stopper 204 fixed connection is on the inner wall of coal pulverizer barrel 1.
Wherein, drying assembly 3 includes motor 301, first gear 302, second gear 303 and heating wire 304, and motor 301 installs at the top of coal pulverizer barrel 1, and first gear 302 is connected on the output shaft of motor 301, and second gear 303 fixed connection is in the upper end of coal breakage pipe 4, and first gear 302 and second gear 303 mesh mutually, and heating wire 304 fixed connection is in the outside of coal breakage pipe 4, and is located the inner chamber of coal pulverizer barrel 1.
Wherein, the top of coal pulverizer barrel 1 is equipped with out powder pipe 5, and goes out powder pipe 5 evenly distributed and has the multiunit.
The side wall of the flow-limiting sleeve 203 is obliquely arranged, the inner wall of the upper end of the coal mill barrel 1 is also obliquely arranged, and the inclination angles of the two are the same.
Wherein, the position that coal pulverizer barrel 1 top is close to the motor rotates and is connected with bull stick 6, is equipped with driving medium 7 between bull stick 6 and the motor 301 output shaft, and the lower extreme of bull stick 6 is equipped with screw thread 8 (the screw thread includes two screw thread grooves of screw thread opposite direction), and the spiro union has movable rod 9 on the screw thread 8, and movable rod 9 is L type, and the vertical section of movable rod 9 slides along the lateral wall of loop bar 201.
The length of the screw thread is matched with the telescopic length of the spring, so that the spring is prevented from losing effect.
Wherein, the current limiting blocks 204 are provided with a plurality of groups and are uniformly distributed on the inner wall of the coal mill barrel 1, one side of the current limiting blocks, which is close to the inner wall of the coal mill barrel 1, is arc-shaped, and one side, which is far away from the coal mill barrel 1, is arc-shaped conical surface.
Example 2
Compared with example 1, the difference is that:
the inner wall of the upper end of the coal mill barrel 1 is also provided with an ultraviolet lamp 10, and the arranged ultraviolet lamp 10 can improve the disinfection effect on coal dust close to the powder outlet pipe, so that the quality of the coal dust is further improved.
Example 3
Compared with example 2, the difference is that:
wherein, still be equipped with guide plate 11 on the lateral wall of coal breakage pipe 4, be equipped with mounting panel 12 between guide plate 11 and the coal breakage pipe 4, still be equipped with axial fan 13 on the mounting panel 12, axial fan 13 that set up can select to open, provides the acceleration function to the velocity of flow of powder wind mixed gas stream to improve holistic drainage effect.
One specific application of this embodiment is: the device provides electric energy for electric elements in the device through an external power supply, and controls the opening and closing of the electric elements through a control switch;
during the use, after the coal pulverizer lets in a wind pressure, open motor 301, motor 301 passes through gear assembly's transmission for coal breakage pipe 4 rotates, opens heating wire 304 simultaneously, can carry out further drying to the drainage through dividing powder wind mixed air current, improves out the powder effect, and during the motor 301 during operation moreover, through driving medium 7 (the driving medium includes fifth wheel and drive belt), can make movable rod 9 reciprocate, can strike current-limiting sleeve 203 during the removal to avoid adhering to the buggy on it, avoid the loss of buggy in the drainage process. When the air flow is along the inner cavity of the coal mill barrel 1, the mixed air flow of the powder wind can be prevented from directly striking the inner barrel of the coal mill under the guiding flow of the current limiting sleeve 203 and the current limiting block 204, so that the technical problem of serious energy loss is avoided, the speed of the mixed air flow of the powder wind is further improved, the pulverizing capacity and the quality of the coal mill are improved, and finally the mixed air flow flows out from the powder outlet pipe 5.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (5)
1. Be applied to drainage structure on coal pulverizer, its characterized in that: the novel coal pulverizer comprises a coal pulverizer barrel (1), a drainage assembly (2) and a drying assembly (3), wherein the drainage assembly (2) comprises a loop bar (201), a spring (202), a flow limiting sleeve (203) and a flow limiting block (204), the top of the coal pulverizer barrel (1) is rotationally connected with a coal dropping pipe (4), one end of the loop bar (201) is fixedly connected to the top of an inner cavity of the coal pulverizer barrel (1), the flow limiting sleeve (203) is fixedly connected to the other end of the loop bar (201) and is sleeved on the outer side of the coal dropping pipe (4), the spring (202) is installed at the upper end of the loop bar (201), and the flow limiting block (204) is fixedly connected to the inner wall of the coal pulverizer barrel (1);
the drying assembly (3) comprises a motor (301), a first gear (302), a second gear (303) and an electric heating wire (304), wherein the motor (301) is arranged at the top of the coal mill barrel (1), the first gear (302) is connected to an output shaft of the motor (301), the second gear (303) is fixedly connected to the upper end of the coal dropping pipe (4), the first gear (302) is meshed with the second gear (303), and the electric heating wire (304) is fixedly connected to the outer side of the coal dropping pipe (4) and is positioned in an inner cavity of the coal mill barrel (1);
the coal mill is characterized in that a rotating rod (6) is rotationally connected to the top of the coal mill barrel (1) at a position close to a motor, a transmission piece (7) is arranged between the rotating rod (6) and an output shaft of the motor (301), threads (8) are arranged at the lower end of the rotating rod (6), a movable rod (9) is connected to the threads (8) in a threaded mode, the movable rod (9) is L-shaped, and a vertical section of the movable rod (9) slides along the side wall of the sleeve rod (201);
the side wall of the coal dropping pipe (4) is also provided with a guide plate (11), a mounting plate (12) is arranged between the guide plate (11) and the coal dropping pipe (4), and an axial flow fan (13) is also arranged on the mounting plate (12).
2. The drainage structure for coal pulverizer as claimed in claim 1, wherein: the top of coal pulverizer barrel (1) is equipped with out powder pipe (5), and goes out powder pipe (5) evenly distributed and has the multiunit.
3. The drainage structure for coal pulverizer as claimed in claim 1, wherein: the side wall of the current limiting sleeve (203) is obliquely arranged, the inner wall of the upper end of the coal mill barrel (1) is obliquely arranged, and the inclination angles of the two are the same.
4. The drainage structure for coal pulverizer as claimed in claim 1, wherein: the flow limiting blocks (204) are provided with a plurality of groups and are uniformly distributed on the inner wall of the coal mill barrel (1).
5. The drainage structure for coal pulverizer as claimed in claim 1, wherein: an ultraviolet lamp (10) is further arranged on the inner wall of the upper end of the coal mill barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210603742.8A CN114985092B (en) | 2022-05-30 | 2022-05-30 | Be applied to drainage structure on coal pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210603742.8A CN114985092B (en) | 2022-05-30 | 2022-05-30 | Be applied to drainage structure on coal pulverizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114985092A CN114985092A (en) | 2022-09-02 |
| CN114985092B true CN114985092B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210603742.8A Active CN114985092B (en) | 2022-05-30 | 2022-05-30 | Be applied to drainage structure on coal pulverizer |
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| Publication number | Publication date |
|---|---|
| CN114985092A (en) | 2022-09-02 |
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