CN219804717U - Novel anti-blocking coal conveying crushing system - Google Patents
Novel anti-blocking coal conveying crushing system Download PDFInfo
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- CN219804717U CN219804717U CN202321191593.5U CN202321191593U CN219804717U CN 219804717 U CN219804717 U CN 219804717U CN 202321191593 U CN202321191593 U CN 202321191593U CN 219804717 U CN219804717 U CN 219804717U
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- stainless steel
- screen plate
- coal
- vibrating screen
- screen
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- 239000003245 coal Substances 0.000 title claims abstract description 60
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 71
- 239000010935 stainless steel Substances 0.000 claims abstract description 71
- 230000002441 reversible effect Effects 0.000 claims abstract description 26
- 238000012216 screening Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 239000002817 coal dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The utility model discloses a novel anti-blocking coal conveying crushing system, which comprises a vibration screening machine, a stainless steel chute, a blanking cylinder and a reversible fine crusher; wherein a vibrating screen plate is arranged in the vibrating screen machine, and crushed coal blocks enter an upper port of the stainless steel chute after being screened by the vibrating screen plate; the vibrating screen plate comprises a screen plate frame, a plurality of pressing strips and a plurality of screen bars, wherein the pressing strips and the screen bars are arranged on the screen plate frame. According to the utility model, the blanking cylinder is newly added at the stainless steel chute part to directly drop qualified coal into the belt conveyor, so that the whole system is simple in structure and saves materials; in addition, the stainless steel sieve plate internally mounted of the stainless steel chute can filter qualified coal in advance, so that the amount of unqualified raw coal entering the reversible fine crusher is reduced, and the condition that a coal conveying crushing system is stuck and blocked is further avoided. The novel vibrating screen plate is arranged in the vibrating screen machine, rotatable vibrating screen bars are adopted, the aperture ratio of the screen plate is increased, and smooth blanking is ensured.
Description
Technical Field
The utility model relates to the technical field of auxiliary equipment for coal conveying and crushing, in particular to a novel anti-blocking coal conveying and crushing system.
Background
In the prior circulating fluidized bed boiler unit, the whole fuel of the coal mill is not crushed in the coal conveying system before the boiler, and the configuration of the conveying system has great influence on the combustion efficiency of the boiler. In the feeding process of the circulating fluidized bed boiler, raw coal is firstly fed into a crushing system for screening and crushing by a coal conveying system, and then is fed into a boiler coal bin through a belt conveyor. Raw coal firstly enters a vibration screening machine, raw coal with granularity smaller than 10mm falls into a coal conveying belt through sieve holes on a sieve plate and is conveyed to a fluidized bed boiler coal bin, and unqualified raw coal enters a reversible fine crusher through a stainless steel chute through the sieve plate. The fine crusher utilizes the hammer head and the sieve plate to crush the part of raw coal until all the raw coal particles are qualified, and then the raw coal particles are discharged and fall into a coal conveying belt. However, once the raw coal with high humidity and viscosity is met, a large amount of raw coal is stuck inside the vibration screening machine and the reversible fine crusher, so that the screen holes are blocked, and the crushing effect and the output of the crushing system are seriously affected.
Disclosure of Invention
The utility model aims to provide a novel anti-blocking coal conveying crushing system, which solves the problems that once a boiler crushing system encounters raw coal with high humidity and high viscosity, a large amount of raw coal is stuck inside a vibration screening machine and a reversible fine crusher to block sieve holes, the crushing effect and the output of the crushing system are seriously affected, powder is easily accumulated at the screen bar part of the vibration screening machine, and the raw coal cannot be sufficiently screened.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a novel anti-blocking coal conveying crushing system, which comprises a vibration screening machine, a stainless steel chute, a blanking cylinder and a reversible fine crusher;
wherein the stainless steel slide pipes are obliquely arranged and are internally provided with a stainless steel screen plate, wherein the stainless steel screen plate divides the stainless steel slide pipes into two diversion cavities, and the blanking cylinders are communicated with the stainless steel slide pipes positioned below the stainless steel screen plate; the reversible fine crusher is communicated with a stainless steel chute positioned above the stainless steel screen plate;
wherein a vibrating screen plate is arranged in the vibrating screen machine, and crushed coal blocks enter an upper port of the stainless steel chute after being screened by the vibrating screen plate;
the vibrating screen plate comprises a screen plate frame, a plurality of pressing strips and a plurality of screen bars, wherein the pressing strips and the screen bars are arranged on the screen plate frame;
the two ends of the screen bars are arranged on the screen plate frame through bearings.
Further, wherein the mechanism mounting position is high: vibratory screening machine > stainless steel chute > blanking cylinder = reversible fine crusher;
or/and a belt conveyor is arranged below the blanking cylinder and the reversible fine crusher.
Still further, the vibration screening machine and the reversible fine crusher are respectively arranged on the upper end face and the lower end face of the stainless steel chute through flanges;
or/and the blanking cylinder is also arranged at the other lower port of the stainless steel chute through a flange.
Still further, the stainless steel screen plate is parallel to the direction of extension of the stainless steel chute.
Compared with the prior art, the utility model has the beneficial technical effects that: according to the utility model, the blanking cylinder is newly added at the stainless steel chute part to directly drop qualified coal into the belt conveyor, so that the whole system is simple in structure and saves materials; in addition, the stainless steel sieve plate internally mounted of the stainless steel chute can filter qualified coal in advance, so that the amount of unqualified raw coal entering the reversible fine crusher is reduced, and the condition that a coal conveying crushing system is stuck and blocked is further avoided. The novel vibrating screen plate is arranged in the vibrating screen machine, rotatable vibrating screen bars are adopted, the aperture ratio of the screen plate is increased, and smooth blanking is ensured. In a word, the anti-blocking device of the vibrating screen of the coal conveying crushing system has the advantages of simple structure, less material consumption and convenient maintenance and use.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of a multifunctional sampling and pressure measuring device according to the present utility model;
FIG. 2 is a schematic diagram of a vibrating screen deck;
FIG. 3 is a schematic front view of a stainless steel screen panel;
fig. 4 is a schematic side view of a shaker screen deck.
Reference numerals illustrate: 1. a vibratory screening machine; 2. a vibrating screen plate; 3. stainless steel chute; 4. stainless steel sieve plate; 5. a blanking cylinder; 6. a reversible fine crusher; 7. a belt conveyor; 8. pressing strips; 9. a screen bar; 10. a screen plate frame.
Detailed Description
The embodiment discloses a novel anti-blocking coal conveying crushing system, which comprises a vibration screening machine 1, a stainless steel chute 3, a blanking cylinder 5 and a reversible fine crusher 6;
wherein the installation position of the mechanism is high: vibratory screening machine 1> stainless steel chute 3> blanking cylinder 5=reversible fine crusher 6; a belt conveyor 7 is arranged below the blanking cylinder 5 and the reversible fine crusher 6, and a protective cover can be covered outside the conveyor 7 for dust prevention and pulverized coal separation;
as shown in fig. 1, the stainless steel slide pipes 3 are obliquely arranged, and a stainless steel screen plate 4 is installed in the stainless steel slide pipes, wherein the stainless steel screen plate 4 divides the stainless steel slide pipes 3 into an upper split cavity and a lower split cavity;
wherein the stainless steel screen plate 4 is used for screening the coal dust screened by the vibration screening machine 1, and the stainless steel screen plate 4 is used for screening the coal dust and falls into a lower-layer diversion cavity;
wherein the blanking cylinder 5 is communicated with a stainless steel chute 3 positioned below the stainless steel screen plate 4; the reversible fine crusher 6 is communicated with a stainless steel chute 3 positioned above the stainless steel screen plate 4; specifically, the vibration screening machine 1 and the reversible fine crusher 6 are respectively arranged on the upper end face and the lower end face of the stainless steel chute 3 through flanges; the blanking cylinder 5 is also arranged at the other lower port of the stainless steel chute 3 through a flange;
namely, the blanking cylinder 5 is communicated with a lower split-flow cavity positioned in the stainless steel chute 3 and used for conveying qualified-particle-size coal dust downwards;
the reversible fine crusher 6 is communicated with an upper split-flow cavity positioned in the stainless steel chute 3 and used for continuously crushing and finally conveying out unqualified pulverized coal.
Wherein a vibrating screen plate 2 is arranged in the vibrating screen machine 1, and crushed coal blocks enter an upper port of the stainless steel chute 3 after being screened by the vibrating screen plate 2;
in this embodiment, as shown in fig. 2, the vibrating screen deck 2 includes a screen deck frame 10, a plurality of battens 8 and a plurality of screen bars 9 mounted on the screen deck frame 10;
wherein both ends of the screen bars 9 are mounted on the screen plate frame 10 by bearings; wherein the clean coal can drive the screen bars 9 to rotate along with the clean coal flowing in the flowing process of the clean coal entering the screen plate frame 10.
In this embodiment, the stainless steel screen plate 4 is parallel to the extending direction of the stainless steel chute 3, as shown in fig. 3, the stainless steel screen plate 4 is densely covered with screening spacer bars, and the stainless steel screen plate 4 installed inside the stainless steel chute 3 can filter qualified coal in advance, so as to reduce the amount of unqualified raw coal entering the reversible fine crusher.
When in use, the utility model is characterized in that:
firstly, raw coal enters a vibrating screen machine 1, clean coal with qualified granularity is directly fed into a belt conveyor, and raw coal with unqualified granularity enters the stainless steel chute 3 through a screen bar 9 on a screen plate 2 of the vibrating screen; some clean coal still in the raw coal entering the stainless steel chute 3 falls to the tail part of the belt conveyor 7 through the stainless steel screen plate 4 and the stainless steel blanking cylinder 5 so as to reduce the occurrence of coal sticking in the stainless steel chute 3; wherein unqualified raw coal falls into the interior of the reversible fine crusher 6 through the stainless steel chute 3, fine coal with qualified granularity is manufactured in the interior of the reversible fine crusher 6 through crushing and hammering, and the fine coal is conveyed to the belt conveyor.
The foregoing embodiments are merely illustrative of the preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to which the present utility model pertains should fall within the scope of the utility model as defined in the appended claims without departing from the spirit of the utility model.
Claims (4)
1. Novel anti-blocking coal conveying crushing system is characterized in that: comprises a vibrating screening machine (1), a stainless steel chute (3), a blanking cylinder (5) and a reversible fine crusher (6);
wherein the stainless steel slide pipes (3) are obliquely arranged and are internally provided with stainless steel screen plates (4), the stainless steel screen plates (4) divide the stainless steel slide pipes (3) into two diversion cavities, and the blanking cylinders (5) are communicated with the stainless steel slide pipes (3) positioned below the stainless steel screen plates (4); the reversible fine crusher (6) is communicated with a stainless steel chute (3) positioned above the stainless steel screen plate (4);
wherein a vibrating screen plate (2) is arranged in the vibrating screen machine (1), and crushed coal blocks enter an upper port of the stainless steel chute (3) after being screened by the vibrating screen plate (2);
the vibrating screen plate (2) comprises a screen plate frame (10), a plurality of pressing strips (8) and a plurality of screen bars (9) which are arranged on the screen plate frame (10);
both ends of the screen bar (9) are mounted on the screen plate frame (10) through bearings.
2. The novel anti-blocking coal conveying crushing system according to claim 1, wherein: wherein the installation position of the mechanism is high: vibration screening machine (1) > stainless steel chute (3) > blanking cylinder (5) =reversible fine crusher (6);
or/and a belt conveyor (7) is arranged below the blanking cylinder (5) and the reversible fine crusher (6).
3. The novel anti-blocking coal conveying crushing system according to claim 1, wherein: the vibrating screening machine (1) and the reversible fine crusher (6) are respectively arranged on the upper end face and the lower end face of the stainless steel chute (3) through flanges;
or/and the blanking cylinder (5) is also arranged at the other lower port of the stainless steel chute (3) through a flange.
4. The novel anti-blocking coal conveying crushing system according to claim 1, wherein: the stainless steel screen plate (4) is parallel to the extending direction of the stainless steel chute (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321191593.5U CN219804717U (en) | 2023-05-17 | 2023-05-17 | Novel anti-blocking coal conveying crushing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321191593.5U CN219804717U (en) | 2023-05-17 | 2023-05-17 | Novel anti-blocking coal conveying crushing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219804717U true CN219804717U (en) | 2023-10-10 |
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ID=88210019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321191593.5U Active CN219804717U (en) | 2023-05-17 | 2023-05-17 | Novel anti-blocking coal conveying crushing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219804717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117387097A (en) * | 2023-11-07 | 2024-01-12 | 绿源能源环境科技集团有限公司 | A kind of air coal feeding device for coal-fired boilers |
-
2023
- 2023-05-17 CN CN202321191593.5U patent/CN219804717U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117387097A (en) * | 2023-11-07 | 2024-01-12 | 绿源能源环境科技集团有限公司 | A kind of air coal feeding device for coal-fired boilers |
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