CN109967197B - Horizontal non-screen coal pulverizer - Google Patents
Horizontal non-screen coal pulverizer Download PDFInfo
- Publication number
- CN109967197B CN109967197B CN201910287522.7A CN201910287522A CN109967197B CN 109967197 B CN109967197 B CN 109967197B CN 201910287522 A CN201910287522 A CN 201910287522A CN 109967197 B CN109967197 B CN 109967197B
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- China
- Prior art keywords
- plate
- pulverized coal
- crushing
- pulverizer
- coal
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- 239000003245 coal Substances 0.000 title claims abstract description 94
- 238000012216 screening Methods 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000010298 pulverizing process Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 239000002817 coal dust Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000006467 substitution reaction 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
- B02C19/00—Other disintegrating devices or methods
-
- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a horizontal type non-sieve coal pulverizer, which relates to the field of coal pulverizing, and comprises a shell, a feed inlet, a transmission channel, a pulverized coal collector, a pulverizer, a pulverized coal auger device, a screening plate, a pulverized coal collector and a secondary screening frame, wherein the pulverizer comprises a rotating shaft, a pulverizing plate and a stop transmission plate, one higher end of the stop transmission plate is clung to the inner wall of the transmission channel, one lower end of the stop transmission plate is provided with a raised edge and keeps a distance of 2-5mm from the inner wall of the transmission channel, and the middle part of the stop transmission plate is provided with a strip-shaped or rectangular leak; the shredder plate is rotated a distance of less than 2mm from the nearest end of the stopper transfer plate. According to the invention, through at least more than 3 rounds of crushing, coal can be prepared into coal dust in a low-cost and high-efficiency mode, so that the problem of incomplete crushing is solved; the problem that coal is blocked easily and the screening device is inconvenient to clean when screening during crushing is structurally avoided.
Description
Technical Field
The invention relates to the field of coal crushing, in particular to a horizontal type non-sieve coal pulverizer.
Background
Coal is still used at a high rate in the current stage, and is used in many heating systems. But stable combustion of coal needs to be ensured by sufficiently fine pulverized coal. Most of the existing pulverized coal machines are provided with screening devices, but the screening devices are blocked after long-term use, discharging is affected, and cleaning is inconvenient. Meanwhile, for scenes with small batches and moving requirements, the existing horizontal pulverized coal machine is inconvenient to move and process because of large volume, and the timely convenient moving, processing and pulverizing effects are not ideal.
Disclosure of Invention
The invention aims at: the horizontal type non-sieve pulverized coal machine solves the problems that coal is easy to be blocked, cleaning is inconvenient and coal crushing is incomplete due to the sieve in the horizontal type pulverized coal machine.
The technical scheme adopted by the invention is as follows:
The horizontal type non-sieve pulverized coal machine comprises a shell, wherein a feed inlet is formed in the upper top end of the shell, the feed inlet is sequentially connected with a transmission channel and a pulverized coal collector from top to bottom, a pulverizer is arranged in the transmission channel, the pulverizer comprises a rotating shaft, a pulverizing plate and a stop conveying plate, and the pulverizing plate is arranged right above the stop conveying plate; the crushing plate can rotate clockwise around the rotating shaft, one end of the crushing plate is provided with rake teeth downwards when the crushing plate is horizontally placed, the other end of the crushing plate is provided with a tilted edge upwards, and the middle part of the crushing plate is provided with a rotating mounting hole matched with the rotating shaft; when the stop conveying plate is arranged in the conveying channel, the stop conveying plate is obliquely arranged, and one end of the crushing plate, which is contacted with the stop conveying plate when the crushing plate rotates, is higher than one end of the crushing plate, which is withdrawn; the higher end of the stop conveying plate is clung to the inner wall of the conveying channel, the lower end of the stop conveying plate is provided with a tilted edge and keeps a distance of 2-5mm from the inner wall of the conveying channel, and the middle part of the stop conveying plate is provided with a strip-shaped or rectangular leak hole; the distance between the crushing plate and the nearest end of the stop conveying plate is kept to be less than 2mm when the crushing plate rotates; a pulverized coal auger device is arranged below the transmission channel and above the pulverized coal collector, a screening plate is arranged at the bottom of the pulverized coal auger device, and the pulverized coal collector is arranged below the screening plate; and a secondary screening frame is arranged below the discharging end of the pulverized coal auger device. The crushing plate is used for crushing coal entering from the feed inlet, specifically, the crushing plate rake teeth are used for carrying out first wheel crushing, when the crushing plate rake teeth rotate to the withdrawal position of the stop conveying plate, the crushing plate is used for carrying out second wheel crushing with the inner wall of the conveying channel and the tilted edges of the stop conveying plate, the coal dust smaller than 2-5mm falls off, and the coal dust still larger than the range falls off to the stop conveying plate again through the tilted edges of the crushing plate to form third wheel crushing. Because the feed inlet is not closed, if the coal water content is too high to cause adhesion on the crushing plate or to be blocked, the coal can fall off through rotary friction and swing, so that the normal use is avoided. Through the crushing more than 3 rounds at least, the coal can be made into pulverized coal in a low-cost and high-efficiency mode, so that the problem of incomplete crushing is solved, and meanwhile, the problem of coal blockage caused by screening during crushing is structurally avoided, and the screening device is inconvenient to clean. The distance between the crushing plate and the nearest end of the stop conveying plate is kept to be smaller than 2mm when the crushing plate rotates, and the crushing plate can be prevented from damaging the stop conveying plate.
Further, a serrated surface is arranged on the inner side of the transmission channel opposite to the lower end tilting edge of the stop conveying plate. The serrated surface can increase the contact area of coal and the inner wall, improve the crushing efficiency, and improve the durability of the transmission channel.
Further, the raised edge of the crushing plate is an arc raised edge. The arc-shaped raised edge of the crushing plate can avoid hard contact with the arc-shaped raised edge of the stop conveying plate, so that abrasion is prevented, and meanwhile, the coal splashing out of the feed inlet can be blocked.
Further, the screening plate is composed of two plates provided with a strip-shaped through hole array and used for adjusting the size of pulverized coal leaked from the pulverized coal auger device to the pulverized coal collector. Size adjustment is achieved through dislocation between the plates, simple control can be achieved, and engineering practical use is facilitated.
Further, a protective cover is arranged on the outer side of the transmission channel and right above the pulverized coal auger device. The protective cover is used for preventing external dust and water from entering or pulverized coal from splashing out, so that the pulverized coal effect is improved.
Further, the secondary screening frame is detachably connected with the pulverized coal collector. The secondary screening frame is convenient to detach and then re-feed through the feed inlet, so that the aim of cyclic crushing is fulfilled.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the horizontal type non-sieve pulverized coal machine can produce coal powder in a low-cost and high-efficiency mode through at least more than 3 rounds of pulverization, and solves the problem of incomplete pulverization.
2. The horizontal type non-sieve pulverized coal machine structurally avoids the problem that coal is easy to block and a sieving device is inconvenient to clean when sieving during crushing.
3. According to the horizontal type non-sieve pulverized coal machine, the serrated surface is arranged on the inner wall of the transmission channel, so that the contact area between coal and the inner wall can be increased, the crushing efficiency can be improved, and the durability of the transmission channel can be improved.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of an embodiment of the present invention.
In the figure, the shell is 1, the feed inlet is 2, the transmission channel is 4, the pulverizer is 5, the rotating shaft is 6, the pulverizing plate is 7, the rake teeth are 8, the stop conveying plate is 9, the leakage hole is 10, the pulverized coal auger device is 11, the screening plate is 12, the pulverized coal collector is 13, the secondary screening frame is 14, the sawtoothed surface is 15, and the protective cover is provided.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms include, comprise, 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, the inclusion of an element as defined by a statement as comprising one … … does not preclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element.
The present invention is described in detail below with reference to fig. 1.
Example 1
The invention relates to a horizontal type non-sieve pulverized coal machine, which comprises a shell 1, wherein the top end of the shell 1 is provided with a feed inlet 2, the feed inlet 2 is sequentially connected with a transmission channel 3 and a pulverized coal collector 12 from top to bottom, a pulverizer 4 is arranged in the transmission channel 3, the pulverizer 4 comprises a rotating shaft 5, a pulverizing plate 6 and a stop conveying plate 8, and the pulverizing plate 6 is arranged right above the stop conveying plate 8; the crushing plate 6 can rotate clockwise around the rotating shaft 5, one end of the crushing plate 6 is provided with rake teeth 7 downwards when horizontally placed, the other end of the crushing plate 6 is provided with a tilted edge upwards, and the middle part of the crushing plate is provided with a rotating mounting hole matched with the rotating shaft; when the stop conveying plate 8 is arranged in the transmission channel 3, the stop conveying plate 8 is obliquely arranged, and one end of the crushing plate 6, which is contacted with the stop conveying plate 8 when rotating, is higher than one end of the crushing plate 6, which is withdrawn; the higher end of the stop conveying plate 8 is tightly attached to the inner wall of the conveying channel 3, the lower end of the stop conveying plate is provided with a tilted edge and keeps a distance of 2-5mm from the inner wall of the conveying channel 3, and the middle part of the stop conveying plate is provided with a strip-shaped or rectangular leak hole 9; the distance between the crushing plate 6 and the nearest end of the stop conveying plate 8 is kept to be less than 2mm when the crushing plate rotates; a pulverized coal auger device is arranged below the transmission channel 3 and above the pulverized coal collector 12, a screening plate 11 is arranged at the bottom of the pulverized coal auger device, and the pulverized coal collector 12 is arranged below the screening plate 11; and a secondary screening frame 13 is arranged below the discharging end of the pulverized coal auger device. The crushing plate 6 is used for crushing coal entering from the feed inlet 2, specifically, the crushing plate 6 rake teeth 7 are used for carrying out first wheel crushing, when the crushing plate rotates to the exit position of the stop conveying plate 8, the crushing plate is used for carrying out second wheel crushing together with the inner wall of the conveying channel 3 and the tilted edges of the stop conveying plate 8, the pulverized coal smaller than 2-5mm falls off, and the pulverized coal still larger than the range falls off to the stop conveying plate 8 again through the tilted edges of the crushing plate 6 to form third wheel crushing. Because the feed inlet 2 is not closed, if the coal water content is too high to cause adhesion on the crushing plate 6 or to be blocked, the coal can fall off through rotary friction and swing, so that the normal use is avoided. Through the crushing more than 3 rounds at least, the coal can be made into pulverized coal in a low-cost and high-efficiency mode, so that the problem of incomplete crushing is solved, and meanwhile, the problem of coal blockage caused by screening during crushing is structurally avoided, and the screening device is inconvenient to clean. The distance from the nearest end of the stopper conveying plate 8 is kept smaller than 2mm when the crushing plate 6 rotates, and damage to the stopper conveying plate 8 by the crushing plate 6 can be avoided.
Example 2
This embodiment is further defined on the basis of embodiment 1 as follows: the inner side of the transmission channel 3 opposite to the lower end edge of the stop conveying plate 8 is provided with a serrated surface 14. The serrated face 14 can increase the contact area of the coal with the inner wall, improve the crushing efficiency, and can improve the durability of the conveying passage 3. The edge of the crushing plate 6 is a circular arc edge. The arc-shaped raised edge of the crushing plate 6 can avoid hard contact with the arc-shaped raised edge of the stop conveying plate 8, so that abrasion is prevented, and meanwhile, the coal splashing out of the feed inlet 2 can be prevented. The screening plate 11 is composed of two plates provided with a strip-shaped through hole array, and is used for adjusting the size of pulverized coal leaked from the pulverized coal auger device to the pulverized coal collector 12. Size adjustment is achieved through dislocation between the plates, simple control can be achieved, and engineering practical use is facilitated. A protective cover 15 is arranged on the outer side of the transmission channel 3 and right above the pulverized coal auger device. The protective cover 15 is used for preventing external dust, water from entering or pulverized coal from splashing out, and improving the pulverized coal effect. The secondary screening frame 13 is detachably connected with the pulverized coal collector. The secondary screening frame 13 is convenient to detach and then re-feed through the feed inlet 2, so that the aim of cyclic crushing is fulfilled.
The working process of the invention is as follows: coal enters the transmission channel 3 through the feed inlet 2, is subjected to first-wheel crushing through the rake teeth 7 of the crushing plate 6, and is subjected to second-wheel crushing together with the inner wall of the transmission channel 3 and the tilted edges of the stop conveying plate 8 when the crushing plate 6 rotates to the withdrawal position of the stop conveying plate 8, wherein coal dust smaller than 2-5mm falls off, and coal dust still larger than the range falls off to the stop conveying plate 8 again through the tilted edges of the crushing plate 6 to form third-wheel crushing; the pulverized coal is conveyed through the crushing plate 6 after entering from the feed inlet 2 and falls to the stop conveying plate 8, and then falls from the leak hole 9 of the stop conveying plate under the action of gravity. The falling coal falls into the pulverized coal auger device 10, proper pulverized coal falls into the pulverized coal collector 12 through the screening plate 11, and the coal which does not meet the specification falls into the secondary screening frame 13 through the discharge hole of the pulverized coal auger device 10; when the secondary screening frame 13 is full, the powder is sent to the feed inlet 2 for further crushing, so that the aim of circulation is fulfilled.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that may be made by those skilled in the art without inventive effort within the scope of the present invention should be covered in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a horizontal no sieve coal pulverizer, includes shell (1), the top is provided with pan feeding mouth (2) on shell (1), pan feeding mouth (2) are connected gradually with transmission path (3), fine coal collector (12) top-down, its characterized in that: a pulverizer (4) is arranged in the transmission channel (3), the pulverizer (4) comprises a rotating shaft (5), a pulverizing plate (6) and a stop conveying plate (8), and the pulverizing plate (6) is arranged right above the stop conveying plate (8); the crushing plate (6) can rotate clockwise around the rotating shaft (5), rake teeth (7) are arranged at one end of the crushing plate (6) downwards when the crushing plate is horizontally placed, a tilted edge is arranged at the other end of the crushing plate upwards, and a rotating mounting hole matched with the rotating shaft is formed in the middle of the crushing plate; when the stop conveying plate (8) is arranged in the conveying channel (3), the stop conveying plate (8) is obliquely arranged, and one end of the crushing plate (6) contacted with the stop conveying plate (8) is higher than one end of the crushing plate (6) which is withdrawn when the crushing plate rotates; the higher end of the stop conveying plate (8) is tightly attached to the inner wall of the conveying channel (3), the lower end of the stop conveying plate is provided with a tilted edge and keeps a distance of 2-5mm from the inner wall of the conveying channel (3), and the middle part of the stop conveying plate is provided with a strip-shaped or rectangular leak hole (9); the distance between the crushing plate (6) and the nearest end of the stop conveying plate (8) is kept to be less than 2mm when the crushing plate rotates; a pulverized coal auger device is arranged below the transmission channel (3) and above the pulverized coal collector (12), a screening plate (11) is arranged at the bottom of the pulverized coal auger device, and the pulverized coal collector (12) is arranged below the screening plate (11); and a secondary screening frame (13) is arranged below the discharging end of the pulverized coal auger device.
2. The horizontal siftless pulverizer of claim 1, wherein: the inner side of the transmission channel (3) opposite to the lower end tilting edge of the stop conveying plate (8) is provided with a serrated surface (14).
3. The horizontal siftless pulverizer of claim 1, wherein: the edge of the crushing plate (6) is an arc edge.
4. A horizontal siftless pulverizer as set forth in any one of claims 1-3, wherein: the screening plate (11) is composed of two plates provided with a strip-shaped through hole array and is used for adjusting the size of pulverized coal leaked from the pulverized coal auger device to the pulverized coal collector (12).
5. The horizontal siftless pulverizer of claim 4, wherein: a protective cover (15) is arranged on the outer side of the transmission channel (3) and right above the pulverized coal auger device.
6. The horizontal siftless pulverizer of claim 1, wherein: the secondary screening frame (13) is detachably connected with the pulverized coal collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287522.7A CN109967197B (en) | 2019-04-11 | 2019-04-11 | Horizontal non-screen coal pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287522.7A CN109967197B (en) | 2019-04-11 | 2019-04-11 | Horizontal non-screen coal pulverizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109967197A CN109967197A (en) | 2019-07-05 |
| CN109967197B true CN109967197B (en) | 2024-05-03 |
Family
ID=67084095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910287522.7A Active CN109967197B (en) | 2019-04-11 | 2019-04-11 | Horizontal non-screen coal pulverizer |
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| CN (1) | CN109967197B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003001139A (en) * | 2001-06-19 | 2003-01-07 | Ishikawajima Harima Heavy Ind Co Ltd | Pyrite treatment method and apparatus in pulverized coal firing boiler facility |
| CN206027799U (en) * | 2016-08-31 | 2017-03-22 | 临沂恒昌焦化股份有限公司 | Buggy coal pulverizer |
| CN107442243A (en) * | 2017-08-29 | 2017-12-08 | 盐城亿之诺机械有限公司 | Grinding screen powder device is turned round in a kind of environment-friendly type colliery |
| CN107570297A (en) * | 2017-09-25 | 2018-01-12 | 郑州源冉生物技术有限公司 | Environment protecting type coal crushes dust collection equipment |
| CN210474221U (en) * | 2019-04-11 | 2020-05-08 | 庆阳市前进机械制造有限公司 | Horizontal non-sieve coal pulverizer |
-
2019
- 2019-04-11 CN CN201910287522.7A patent/CN109967197B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003001139A (en) * | 2001-06-19 | 2003-01-07 | Ishikawajima Harima Heavy Ind Co Ltd | Pyrite treatment method and apparatus in pulverized coal firing boiler facility |
| CN206027799U (en) * | 2016-08-31 | 2017-03-22 | 临沂恒昌焦化股份有限公司 | Buggy coal pulverizer |
| CN107442243A (en) * | 2017-08-29 | 2017-12-08 | 盐城亿之诺机械有限公司 | Grinding screen powder device is turned round in a kind of environment-friendly type colliery |
| CN107570297A (en) * | 2017-09-25 | 2018-01-12 | 郑州源冉生物技术有限公司 | Environment protecting type coal crushes dust collection equipment |
| CN210474221U (en) * | 2019-04-11 | 2020-05-08 | 庆阳市前进机械制造有限公司 | Horizontal non-sieve coal pulverizer |
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| Publication number | Publication date |
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| CN109967197A (en) | 2019-07-05 |
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