CN204138623U - A kind of novel coal-grinding pulping system - Google Patents
A kind of novel coal-grinding pulping system Download PDFInfo
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- CN204138623U CN204138623U CN201420566362.2U CN201420566362U CN204138623U CN 204138623 U CN204138623 U CN 204138623U CN 201420566362 U CN201420566362 U CN 201420566362U CN 204138623 U CN204138623 U CN 204138623U
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- coal
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- 238000000227 grinding Methods 0.000 title claims abstract description 60
- 238000004537 pulping Methods 0.000 title claims abstract description 28
- 239000003245 coal Substances 0.000 claims abstract description 98
- 239000002817 coal dust Substances 0.000 claims abstract description 38
- 239000002002 slurry Substances 0.000 claims abstract description 24
- 239000000654 additive Substances 0.000 claims abstract description 15
- 230000000996 additive effect Effects 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000011796 hollow space material Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000843 powder Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910000754 Wrought iron Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009837 dry grinding Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model relates to a kind of novel coal-grinding pulping system, comprises coal-grinding apparatus, fine grinding pulping device and slurries additive agent device; Coal-grinding apparatus is cylinder rod mill, described cylinder rod mill comprises outer rotatable cylinder-like shell and is fixedly installed in the filter coal cylinder of shell shaft core position, shell and filter coal cylinder are all horizontally disposed with, space between shell and filter coal cylinder is outer coal-grinding chamber, hollow space in filter coal cylinder is interior metafiltration coal chamber, be provided with some frottons in outer coal-grinding chamber, bottom interior metafiltration coal chamber, be provided with the coal dust guide plate being installed on filter coal cylinder barrel, the barrel of filter coal cylinder is evenly provided with some filter coal holes; Described coal dust guide plate is provided with certain slope, and coal dust skids off along the gradient of coal dust guide plate to the exit end of cylinder rod mill; The sets of advantages of ball mill and rod mill is got up by this system, not only enhances productivity, energy-saving and cost-reducing, can also improve the size-grade distribution of coal dust, according to practical situation, coal powder size distribution is adjustable to optimum range.
Description
Technical field
The utility model belongs to coal water slurry preparation field, is specially a kind of novel coal-grinding pulping system and device.
Background technology
Along with the development of Energy-saving Society, and the Environmental Protection Situation of sternness, the multinomial policy of China supports development clean coal technology all energetically, and one of the representative of COAL-WATER SLURRY TECHNOLOGY clean coal technology just.Coal water slurry is usually by the dry pulverized coal of 55%-70%, the water of 29-44% with form less than the slurries additive agent of 1%.The quality of water coal slurry property affects by many-sided, as coal analysis, and the performance of slurries additive agent, size-grade distribution of coal etc.
Existing coal-grinding pulping process mainly contains that dry grinding wet is joined, wet-milling etc.At present, in coal-grinding process, coal-grinding apparatus used is the one of ball mill or rod mill, conventional ball mill.At the same terms and when using ball mill grinding under nominal situation, gained coal powder size wider distribution, slurrying there is some superiority, often obtained coal-water fluid concentration is slightly high, energy consumption is large compared with rod mill, and ball mill easily occurs that macrobead is assembled or crosses pulverizing in operation, causes extra losses and waste.Rod mill coal-grinding efficiency is high, and energy consumption is low, and after grinding, gained coal grain is evenly distributed, but in operation, easily occurs disorderly rod and disconnected rod in rod mill.The granularity of coal dust can be adjusted by adding ball or rod, when ball mill adds ball, can not grinding machine be stopped, time saving and energy saving, then need when rod mill adds rod to shut down, regular hour loss will be caused.
Utility model content
The utility model is for solving the problems of the technologies described above, provide a kind of novel coal-grinding pulping system and device, the sets of advantages of ball mill and rod mill is got up, not only enhance productivity, energy-saving and cost-reducing, the size-grade distribution of coal dust can also be improved, according to practical situation, coal powder size distribution is adjustable to optimum range, better must be applied in follow-up producing process.
The technical solution of the utility model is as follows:
A kind of novel coal-grinding pulping system, is characterized in that: comprise coal-grinding apparatus and fine grinding pulping device, coal-grinding apparatus is connected to fine grinding pulping device;
Coal-grinding apparatus is cylinder rod mill, described cylinder rod mill comprises the shell of outer rotatable cylindrical shape and is fixedly installed in the filter coal cylinder of shell shaft core position, shell and filter coal cylinder are all horizontally disposed with, space between shell and filter coal cylinder is outer coal-grinding chamber, hollow space in filter coal cylinder is interior metafiltration coal chamber, be provided with some frottons in outer coal-grinding chamber, bottom interior metafiltration coal chamber, be provided with the coal dust guide plate being installed on filter coal cylinder barrel, filter coal cylinder barrel is evenly provided with some filter coal holes; Described coal dust guide plate is the swash plate being provided with certain slope; Described swash plate is the comparatively low side of coal dust guide plate near one end of the exit end of cylinder rod mill, and coal dust skids off along the gradient of coal dust guide plate to the exit end of cylinder rod mill.
Described frotton size, quantity adjustable according to actual needs.
The diameter in described filter coal hole is 1-3mm, and distribution mode can change according to demand flexibly.
The feed end of described cylinder rod mill is only communicated with outer coal-grinding chamber, and the discharge end of cylinder rod mill is only communicated with interior metafiltration coal chamber.
Described broken coal block enters in outer coal-grinding chamber from the feed end of cylinder rod mill, grind with frotton effect, obtain the rough coal powder of certain granularity, rough coal powder enters interior metafiltration coal chamber by aperture, drop on coal dust guide plate, by the gradient oriented effect of coal dust guide plate, coal dust enters into fine grinding pulping device by the squeezing action of gravity and lasting charging.
Described fine grinding pulping device is ball mill.
Described system can also arrange slurries additive agent device, fine grinding pulping device connects and arranges slurries additive agent device.Enter the coal dust of ball mill, directly obtain coal water slurry with the coal water slurry dispersing agent of slurries additive agent device, water after mixing, different according to actual needs, also can close the charging of first slurries additive agent system, directly with slurry again after dry grinding discharging.Appropriate coal powder size distribution can be obtained in operation by increasing abrading-ball.
The utility model has following beneficial effect:
1, concentrated the advantage of rod mill and ball mill, decrease coal grain that single ball mill may occur excessive with cross crushing phenomenon; Due to the restriction of New bar grinding machine hollow cylinder falls number of perforations and size, varigrained coal grain falls into tilted plate in batches, and this makes the coal grain of narrower particle size distribution originally appropriately increase particle size distribution.
2, by rod mill and the ball mill acting in conjunction of fine grinding system of corase grind system, the energy expenditure in whole coal-grinding process is decreased;
3, can realizing in non-stop-machine process, adjusting the size-grade distribution of discharging by increasing abrading-ball, ensure grating effect, make the size-grade distribution of the coal dust of Coal rank at optimum range.
4, the novelty of apparatus design makes in coal grain reasonable trend in the entire system, to ensure the size-grade distribution situation that coal dust is final.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment of the present utility model.
Fig. 2 is the structural representation of filter coal cylinder of the present utility model.
Fig. 3 is the side-looking structural representation of coal dust guide plate of the present utility model.
Fig. 4 is the plan structure schematic diagram of coal dust guide plate of the present utility model.
Wherein, Reference numeral is: 1 is rod mill, and 2 is filter coal cylinder, and 2-1 is filter coal cylinder barrel, and 2-2 is filter coal hole, and 2-3 is coal dust guide plate, and 3 is frotton, and 4 is slurries additive agent device, and 5 is abrading-ball, and 6 is ball mill, and 7 is coal water slurry or coal dust storing device.
Embodiment
As shown in Figure 1, a kind of novel coal-grinding pulping system, comprise coal-grinding apparatus and fine grinding pulping device, coal-grinding apparatus is connected to fine grinding pulping device.
Coal-grinding apparatus is cylinder rod mill 1, described cylinder rod mill 1 comprises the shell of outer rotatable cylindrical shape and is fixedly installed in the filter coal cylinder 2 of shell shaft core position, shell and filter coal cylinder 2 are all horizontally disposed with, space between shell and filter coal cylinder 2 is outer coal-grinding chamber, hollow space in filter coal cylinder 2 is interior metafiltration coal chamber, some frottons 3 are provided with in outer coal-grinding chamber, be provided with the coal dust guide plate 2-3 being installed on filter coal cylinder barrel 2-1 bottom interior metafiltration coal chamber, filter coal cylinder barrel 2-1 is evenly provided with some filter coal hole 2-2; Described coal dust guide plate 2-3 is the swash plate being provided with certain slope, and described swash plate is the comparatively low side of coal dust guide plate 2-3 near one end of the exit end of cylinder rod mill 1, and coal dust skids off along the gradient of coal dust guide plate 2-3 to the exit end of cylinder rod mill 1.
Described frotton 3 size, quantity adjustable according to actual needs.
The diameter of described filter coal hole 2-2 is 1-3mm, and distribution mode can change according to demand flexibly.
Coal cinder sends into rod mill 1 after fragmentation, in the outer coal-grinding chamber between the shell and filter coal cylinder 2 of rod mill 1, mutually extrude with frotton 3 and be grated, when coal grain is milled to <3mm, coal grain starts to fall in filter coal cylinder 2 in metafiltration coal chamber from filter coal hole 2-2.But not all coal grain is milled in the interior metafiltration coal chamber that 3mm just can fall in filter coal cylinder 2 smoothly, because the restriction of coal hole 2-2 number and size filtered by filter coal cylinder about 2, part of coal grain is milled to less granularity and just has an opportunity to fall from filter coal hole 2-2, and this makes the coal grain of narrower particle size distribution originally appropriately increase particle size distribution.Rod iron herein in rod mill 1 can adjust rod iron size and rod iron total mass as required.
The coal dust guide plate 2-3 of inclination built-in in filter coal cylinder 2, coal grain is under gravity along coal dust guide plate 2-3 landing to rod mill 1 right-hand member, right-hand member has the guide cylinder that a gradient is larger, make coal grain can enter ball mill 6 more smoothly, also prevent the material in ball mill 6 to be back in filter coal cylinder 2 simultaneously.
After coal grain arrives ball mill 6, coal grain and steel ball effect are milled to thinner particle, arrive the requirement of producing.Adjustable steel ball size and quantity according to the actual requirements, coal grain is fully milled in ball mill 6, obtains the coal dust of broad particle distribution.Discharge below ball mill 6 right-hand member after coal powder size reaches requirement, be provided with coal water slurry or coal dust storing device 7 below relief outlet, realize continuous seepage.Coal dust can be used for boiler combustion, slurrying and gasified raw material.
When system is provided with slurries additive agent device 4, fine grinding pulping device connects and arranges slurries additive agent device 4, this entire system becomes CWS system processed.After coal grain enters ball mill 6, with carry through volume pump from slurries additive agent device 4 additive solution of coming in ball mill 6 together with disperse to mill, obtain for the coal water slurry of burning or gasify.Regulate coal dust amount and additive solution amount, obtain concentration and performance coal water slurry up to standard, can with downstream unit continuous seepage.Appropriate coal powder size distribution can be obtained in operation by increasing abrading-ball 5.
Claims (6)
1. a novel coal-grinding pulping system, is characterized in that: comprise coal-grinding apparatus and fine grinding pulping device, coal-grinding apparatus is connected to fine grinding pulping device;
Coal-grinding apparatus is cylinder rod mill (1), described cylinder rod mill (1) comprises the shell of outer rotatable cylindrical shape and is fixedly installed in the filter coal cylinder (2) of shell shaft core position, shell and filter coal cylinder (2) are all horizontally disposed with, space between shell and filter coal cylinder (2) is outer coal-grinding chamber, hollow space in filter coal cylinder (2) is interior metafiltration coal chamber, some frottons (3) are provided with in outer coal-grinding chamber, the coal dust guide plate (2-3) being installed on filter coal cylinder barrel (2-1) is provided with bottom interior metafiltration coal chamber, filter coal cylinder barrel (2-1) is evenly provided with some filter coal holes (2-2), described coal dust guide plate (2-3) is a swash plate, and described swash plate is the comparatively low side of coal dust guide plate (2-3) near one end of the exit end of cylinder rod mill (1).
2. the novel coal-grinding pulping system of one according to claim 1, is characterized in that: the diameter of described filter coal hole (2-2) is 1-3mm.
3. the novel coal-grinding pulping system of one according to claim 1, is characterized in that: the feed end of described cylinder rod mill (1) is only communicated with outer coal-grinding chamber, and the discharge end of cylinder rod mill (1) is only communicated with interior metafiltration coal chamber.
4. the novel coal-grinding pulping system of one according to claim 1, is characterized in that: described fine grinding pulping device is ball mill (6).
5. the novel coal-grinding pulping system of one according to claim 1, is characterized in that: the coal dust relief outlet lower end of described fine grinding pulping device is provided with coal water slurry or coal dust storing device (7).
6. the novel coal-grinding pulping system of one according to claim 1, is characterized in that: described system is also provided with slurries additive agent device (4), and the connection of fine grinding pulping device upper end arranges slurries additive agent device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420566362.2U CN204138623U (en) | 2014-09-29 | 2014-09-29 | A kind of novel coal-grinding pulping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420566362.2U CN204138623U (en) | 2014-09-29 | 2014-09-29 | A kind of novel coal-grinding pulping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204138623U true CN204138623U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420566362.2U Expired - Lifetime CN204138623U (en) | 2014-09-29 | 2014-09-29 | A kind of novel coal-grinding pulping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204138623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269085A (en) * | 2016-08-26 | 2017-01-04 | 东华工程科技股份有限公司 | A kind of method of ball mill concentration low-disintegration coal gasified coal water slurry concentration |
| CN114100386A (en) * | 2021-02-19 | 2022-03-01 | 恒力石化（大连）炼化有限公司 | Preparation system and process of coal water slurry additive |
-
2014
- 2014-09-29 CN CN201420566362.2U patent/CN204138623U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269085A (en) * | 2016-08-26 | 2017-01-04 | 东华工程科技股份有限公司 | A kind of method of ball mill concentration low-disintegration coal gasified coal water slurry concentration |
| CN114100386A (en) * | 2021-02-19 | 2022-03-01 | 恒力石化（大连）炼化有限公司 | Preparation system and process of coal water slurry additive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180420 Address after: 610000, No. 18, West core road, hi tech West District, Sichuan, Chengdu Patentee after: DONGFANG ELECTRIC Co.,Ltd. Address before: Jinniu District Chengdu City, Sichuan province 610036 Shu Road No. 333 Patentee before: DONGFANG ELECTRIC Corp. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150204 |