CN213644429U - Coal powder manufacturing device - Google Patents
Coal powder manufacturing device Download PDFInfo
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- CN213644429U CN213644429U CN202020841190.0U CN202020841190U CN213644429U CN 213644429 U CN213644429 U CN 213644429U CN 202020841190 U CN202020841190 U CN 202020841190U CN 213644429 U CN213644429 U CN 213644429U
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Abstract
A pulverized coal manufacturing apparatus comprising: the crusher is used for crushing raw coal and is provided with a raw coal feeding hole and a crushed coal discharging hole; the coal mill is used for grinding the crushed raw coal into powdery particles, and is provided with a coal grinding feed inlet, a coal grinding discharge outlet and a drying medium inlet, and the coal grinding feed inlet is arranged at the downstream of the crushed coal discharge outlet; the screening machine is provided with a screening feed inlet, a first screening discharge port and a second screening discharge port; and the screening feed inlet of screening machine passes through sealed conveyor and coal pulverizer discharge gate sealing connection to can filter, separate out the buggy of different particle diameters through the screening machine, and discharge the buggy of different particle diameters through first discharge gate and second discharge gate, so can realize the function that different granularity buggy were prepared to same device, and then can reduce the device structure, reduction in production cost.
Description
Technical Field
The utility model relates to a buggy makes technical field, particularly, relates to a buggy manufacturing installation.
Background
The grinding system adopted by the existing power plant is designed by integrating drying and grinding of raw coal, and hot flue gas from the power plant dries the raw coal and grinds the raw coal in a mill. However, the existing pulverizing system can only prepare coal powder with one granularity. When coal dust with other particle sizes needs to be prepared, the equipment needs to be replaced again, so that the manufacturing cost of the coal dust is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fine coal manufacturing installation to solve the problem that proposes among the above-mentioned background art.
In order to solve the technical problem, the utility model discloses a following scheme can be solved:
a pulverized coal manufacturing apparatus comprising: the crusher is used for crushing raw coal and is provided with a raw coal feeding hole and a crushed coal discharging hole; the coal mill is used for grinding the crushed raw coal into powdery particles, and is provided with a coal grinding feed inlet, a coal grinding discharge outlet and a drying medium inlet, and the coal grinding feed inlet is arranged at the downstream of the crushed coal discharge outlet; the screening machine is provided with a screening feed inlet and a screening discharge outlet; and the screening feed inlet of the screening machine is in sealing connection with the discharge outlet of the coal mill through a sealing conveying device.
In one embodiment, the sizer includes a housing having an angled sizing screen disposed therein.
In one embodiment, the screening mesh comprises a first screening mesh, a second screening mesh, a third screening mesh, and a fourth screening mesh.
In one embodiment, the screening outlet comprises a first screening outlet, a second screening outlet, a third screening outlet and a fourth screening outlet, the first screening outlet, the second screening outlet, the third screening outlet and the fourth screening outlet being provided at inclined ends of the first screening mesh, the second screening mesh, the third screening mesh and the fourth screening mesh, respectively.
In one embodiment, a vibratory motor is provided at the bottom of the housing for vibrating the screen machine.
In one embodiment, the pulverized coal manufacturing apparatus further includes: the feeding end of the conveying mechanism is arranged at the crushed coal outlet; the inlet of the storage bin is arranged at the discharge end of the conveying mechanism; the weighing mechanism, the feed end setting of weighing mechanism is in the exit of storage storehouse, the discharge end setting of weighing mechanism is in the coal pulverizer entrance, weighing mechanism is used for the quantitative raw coal of carrying after smashing.
In one embodiment, the pulverized coal manufacturing apparatus further includes: the coarse powder coal bin is communicated with the first screening discharge hole through a pipe chain conveyor; and the fine coal bin is communicated with the second screening discharge hole through a pipe chain conveyor.
In one embodiment, the coal mill is a fan mill, and the screening machine includes a bag-type dust collector.
The utility model has the advantages that: use the technical scheme of the utility model, this buggy manufacturing installation is including the breaker, coal pulverizer, the screening machine that set up in order, and can filter, separate out the buggy of different particle diameters through the screening machine to discharge the buggy of different particle diameters through first discharge gate and second discharge gate, so can realize the function that different granularity buggy were prepared to same device, and then can reduce the device structure, reduction in production cost.
Drawings
Fig. 1 is a schematic structural diagram of the coal extraction powder manufacturing device of the present invention.
Figure 2 is the structural schematic diagram of the sieving machine of the utility model.
In the figure: 10. a crusher; 20. a coal mill; 21. a drying medium inlet; 30. screening machine; 60. a conveying mechanism; 70. a storage bin; 80. a weighing mechanism; 90. a coarse powder coal bunker; 100. a pipe chain conveyor; 110. a fine powder coal bunker; 310. a housing; 320. a screening plate; 321. a first screening net; 322. a second screening mesh; 323. a third screening net; 324. a fourth screening net; 325. a first screening outlet; 326. a second screening outlet; 327. a third screening outlet; 328. a fourth screening outlet; 340. a vibration motor.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, feature details such as specific configurations and components are provided only to help a full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
The utility model provides a pulverized coal manufacturing device.
As shown in fig. 1, the utility model provides a pulverized coal manufacturing device, this pulverized coal manufacturing device includes: crusher 10, coal pulverizer 20, screening machine 30. Specifically, the crusher 10 is used for crushing raw coal, and the crusher 10 has a raw coal inlet and a crushed coal outlet. The coal mill 20 has a coal mill inlet, a coal mill outlet, and a drying medium inlet 21, the coal mill inlet being provided downstream of the pulverized coal outlet, and pulverized raw coal is pulverized into pulverized particles by the coal mill 20. The screening machine 30 is provided with a screening feed inlet and a screening discharge outlet; and the screening feed inlet of the screening machine 30 is hermetically connected with the discharge outlet of the coal mill through a sealing conveying device. The fluid with the powder particles is roughly separated through the sieving machine 30, and the separated particles are discharged from the first sieving discharge port and the second sieving discharge port, so that the separation of different particles of the pulverized coal is realized.
The pulverized coal manufacturing device is designed into a crusher, a coal mill and a sieving machine which are arranged in sequence. Can filter, separate out the buggy of different particle diameters through the screening machine, so can realize the function that same device prepared different granularity buggy, and then can reduce the device structure, reduction in production cost.
In this embodiment, a surge bin 120 is further disposed upstream of the crusher 10, and the raw coal is dropped into the surge bin 120 and is sent into the crusher 10 through the surge bin 120, so as to reduce the impact of the raw coal on the crusher 10 when the raw coal is dropped into the crusher 10.
As shown in fig. 2, the screening machine 30 includes a housing 310, an inclined screening net is disposed in the housing 310, and a vibration motor 340 for vibrating the screening machine 30 is disposed at the bottom of the housing 310; further, the screening mesh comprises a first screening mesh 321, a second screening mesh 322, a third screening mesh 323 and a fourth screening mesh 324, the screening outlet comprises a first screening outlet 325, a second screening outlet 326, a third screening outlet 326 and a fourth screening outlet 328, the first screening outlet 325, the second screening outlet 326, the third screening outlet 327 and the fourth screening outlet 328 are respectively arranged at the inclined ends of the first screening mesh 321, the second screening mesh 322, the third screening mesh 323 and the fourth screening mesh 324; therefore, the vibration motor 340 drives the shell 310 to vibrate, so that the particle coal powder on the first screening net 321, the second screening net 322, the third screening net 323 and the fourth screening net 324 is subjected to vibration separation, and the separation effect is further better realized.
Further, the first sieving net 321 is used for separating coal dust with a diameter of more than 5mm, the second sieving net 322 is used for separating coal dust with a diameter of less than 3mm, the third sieving net 323 is used for separating coal dust with a diameter of less than 0.5mm, and the fourth sieving net 324 is used for separating coal dust with a diameter of less than 0.3, and in addition, the diameter of the screen can be adjusted according to the requirements of customers.
Further, the pulverized coal manufacturing apparatus further includes: a conveying mechanism 60, a storage bin 70 and a weighing mechanism 80. Wherein, the feed end setting of conveying mechanism 60 is in the crushed coal exit, and the entry setting of storage storehouse 70 is in the discharge end department of conveying mechanism 60, and the feed end setting of weighing mechanism 80 is in the exit of storage storehouse 70, and the discharge end setting of weighing mechanism 80 is in the coal pulverizer entrance, can quantitatively carry the raw coal after smashing to coal pulverizer 20 through weighing mechanism 80. Specifically, the conveying mechanism 60 employs a large-inclination belt conveyor, and the weighing mechanism 80 is a weighing type coal feeder.
Wherein, the coal powder manufacturing device also comprises a coarse powder coal bin 90 and a fine powder coal bin 110. The coarse powder coal bin 90 is communicated with a first discharge port through a pipe chain conveyor 100, and the fine powder coal bin 110 is communicated with a second discharge port through the pipe chain conveyor 100. The pulverized coal separated by the sieving machine 30 can be collected and stored for subsequent use through the coarse coal bunker 90 and the fine coal bunker 110. The pipe chain conveyor 100 has good airtightness, avoids the opportunity of dust raising and air contact in the conveying process, ensures the intrinsic safety of the conveying process, and avoids safety accidents caused by the contact of coal powder and air.
In this embodiment, the coal mill 20 is a fan-type coal mill, and the fine separation device 40 is a bag-type dust collector. By the arrangement, the device can be used for preparing pulverized lignite and pulverized bituminous coal, and has strong adaptability to coal quality.
The embodiment of the utility model provides a pulverized coal manufacturing installation, earlier big bulk form raw coal (the diameter is greater than or equal to 100mm) through surge bin 120, breaker 10 is broken to the income granularity of grinding (the diameter is less than or equal to 30mm) that accords with fan-type coal pulverizer, then carry to storage storehouse 70 in through big inclination belt conveyor, send to coal pulverizer 20 in through weighing mechanism 80 ration, under sealed conveyor's effect, the diameter that the buggy separated through screening machine 30 is at the control valve of 75 mu m ~ 200 mu m's buggy through first screening discharge gate, pipe chain conveyor 100 carries to middlings bunker 90 in. The fine coal powder with the diameter less than or equal to 75um separated by the bag-type dust remover is conveyed into a fine coal bin 110 by a control valve of a second screening discharge hole and a pipe chain conveyor 100. Wherein, hot flue gas can be introduced into the drying medium inlet 21 to dry the pulverized coal when the pulverized coal is ground by the coal mill 20, so that the requirement that the moisture content of the wet basis of the lignite and the bituminous coal is 10-15% can be met.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. A pulverized coal manufacturing apparatus characterized in that: the pulverized coal manufacturing apparatus includes: the crusher (10), the crusher (10) is used for crushing raw coal, and the crusher (10) is provided with a raw coal feeding hole and a crushed coal discharging hole; the coal mill (20), the coal mill (20) is used for grinding the crushed raw coal into powdery particles, the coal mill (20) is provided with a coal grinding feed inlet, a coal grinding discharge outlet and a drying medium inlet (21), and the coal grinding feed inlet is arranged at the downstream of the crushed coal discharge outlet; the screening machine (30) is provided with a screening feeding hole and a screening discharging hole; and the screening feed inlet of the screening machine (30) is hermetically connected with the discharge outlet of the coal mill through a sealed conveying device, the screening machine (30) comprises a shell (310), an inclined screening net is arranged in the shell (310), the screening net comprises a first screening net (321), a second screening net (322), a third screening net (323) and a fourth screening net (324), the screening discharge hole comprises a first screening outlet (325), a second screening outlet (326), a third screening outlet (327) and a fourth screening outlet (328), the first screening outlet (325), the second screening outlet (326), the third screening outlet (327) and the fourth screening outlet (328) are provided at the inclined ends of the first screening wire (321), the second screening wire (322), the third screening wire (323) and the fourth screening wire (324), respectively.
2. The pulverized coal production apparatus according to claim 1, characterized in that: and a vibration motor (340) for vibrating the screening machine (30) is arranged at the bottom of the shell (310).
3. The pulverized coal manufacturing apparatus according to claim 1, further comprising: the feeding end of the conveying mechanism (60) is arranged at the crushed coal outlet; a storage bin (70), an inlet of the storage bin (70) being disposed at a discharge end of the conveyor mechanism (60); weighing mechanism (80), the feed end setting of weighing mechanism (80) is in the exit of storage storehouse (70), the discharge end setting of weighing mechanism (80) is in the coal pulverizer entrance, weighing mechanism (80) are used for the ration to carry the raw coal after smashing.
4. The pulverized coal production apparatus according to claim 1, characterized in that: the pulverized coal manufacturing apparatus further includes: the coarse powder coal bin (90) is communicated with the first screening discharge hole through a pipe chain conveyor (100); and the fine coal bin (110), wherein the fine coal bin (110) is communicated with the second screening discharge hole through a pipe chain conveyor (100).
5. The pulverized coal production apparatus according to claim 4, characterized in that: the coarse powder coal bin (90) can also be communicated with the first screening discharge hole through a buried scraper plate; and the fine coal bunker (110) is communicated with the second screening discharge hole through a buried scraper.
6. The pulverized coal manufacturing apparatus according to claim 1, wherein the coal mill (20) is a fan-type coal mill, and the sieving machine (30) includes a bag-type dust collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020841190.0U CN213644429U (en) | 2020-05-20 | 2020-05-20 | Coal powder manufacturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020841190.0U CN213644429U (en) | 2020-05-20 | 2020-05-20 | Coal powder manufacturing device |
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| CN213644429U true CN213644429U (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020841190.0U Active CN213644429U (en) | 2020-05-20 | 2020-05-20 | Coal powder manufacturing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115201076A (en) * | 2022-07-05 | 2022-10-18 | 山东唐口煤业有限公司 | Automatic screening and weighing device and measuring method for tunnel side large-diameter drilling pulverized coal |
-
2020
- 2020-05-20 CN CN202020841190.0U patent/CN213644429U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115201076A (en) * | 2022-07-05 | 2022-10-18 | 山东唐口煤业有限公司 | Automatic screening and weighing device and measuring method for tunnel side large-diameter drilling pulverized coal |
| CN115201076B (en) * | 2022-07-05 | 2024-04-19 | 山东唐口煤业有限公司 | Automatic coal powder screening and weighing device for roadway side large-diameter drilling and measuring method |
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