CN209362599U - A kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer - Google Patents
A kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer Download PDFInfo
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- CN209362599U CN209362599U CN201821810891.7U CN201821810891U CN209362599U CN 209362599 U CN209362599 U CN 209362599U CN 201821810891 U CN201821810891 U CN 201821810891U CN 209362599 U CN209362599 U CN 209362599U
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- roller body
- mill roller
- molten steel
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- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000000227 grinding Methods 0.000 title claims abstract description 29
- 239000011195 cermet Substances 0.000 title claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 44
- 239000002245 particle Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 238000010079 rubber tapping Methods 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 29
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract description 2
- 239000002817 coal dust Substances 0.000 description 9
- 239000003818 cinder Substances 0.000 description 5
- 238000003801 milling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model belongs to medium-speed pulverizer accessory applied technical field, specifically disclose a kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer, including circular mill roller body, metal ceramic composite bed, several molten steel tapping holes, several ceramic particles, wherein, the width T of several cylindrical ceramic particles is 12.5mm-25mm, depth D is 30mm-45mm, and a face diameter of circular mill roller body is 1507mm, another side diameter is 1171mm.The utility model has the beneficial effects that: its design structure is reasonable, it is easy to use to be easily installed disassembly; circular mill roller body, several cylindrical ceramic particles, metal ceramic composite bed and several molten steel casting pore structure for being integrally formed and being used in combination; extend the long service life of grinding roller; without normal maintenance down, work efficiency is high; it is three times of traditional grinding roller; it solves the problems, such as existing medium-speed coal mill roller inconvenience installation, maintenance simultaneously, and reduces production cost.
Description
Technical field
The utility model belongs to medium-speed pulverizer accessory applied technical field, and in particular to one kind is applied to thermal power plant
The cermet composite grinding roll of medium-speed pulverizer, wear-resisting, high temperature resistant, long service life, and be easily installed and demolition and maintenance.
Background technique
Coal pulverizer is by coal crusher and to wear into the machinery of coal dust, it is the important ancillary equipment of coal-powder boiler, is had vertical
The Multiple Types such as flour mill, high-pressure overhang roll mill, middling speed micropowder grinding, super-pressure trapezoidal mill, Raymond mill；Massage the revolving speed of coal workpiece
Three types, i.e. low-speed coal mill, medium-speed pulverizer and high speed coal mill can be divided into.
Low-speed coal mill, predominantly drum-type low speed coal mill, general abbreviation ball mill or ball mill, it is a rotation
Cylinder or both ends be taper roller, roller is provided with steel ball, and the revolving speed of roller is 15~25 revs/min, when work in cylinder
Steel ball constantly hit and squeeze coal cinder, coal pulverizer coal cinder is milled into coal dust, then by the hot wind that is passed through in roller by coal
It dries and sends out coal dust, after separator separates, the coal dust of certain particle size is admitted to pulverized coal bin or is sent directly into coal dust firing
Device, ball mill bulky, power consumption are high, noise is big, but to the wide adaptation range of coal, reliable for operation, particularly suitable for grinding
Hard anthracite.
Medium-speed pulverizer, revolving speed be 50~300 revs/min, type is more, common are square position mill, bowl shaped mill, E type grind and
Roller mill, their common feature are that component of milling is made of the milling body of two groups of relative motions, and coal cinder is in this two groups of milling bodies
It is squeezed between surface, mills and be crushed, while the hot wind for being passed through coal pulverizer dries coal, and coal dust is sent to the area that mills
In the separator on top, the coal dust of certain particle size takes mill out of outside with air-flow after separation, and coarse grained coal dust backspace mills area again
Mill, have facility compact, take up little area, power consumption saves that (about the 50~75% of low speed coal mill), noise are small, operation control is lighter
Just sensitive equal remarkable advantages.
High speed coal mill, revolving speed are 500~1500 revs/min, are mainly made of high speed rotor and mill shell, common are fan
Mill and hammer swing sledge mill etc., in coal cinder in fan mill by mutual between the high speed impact of high speed rotor and the collision of mill shell and coal cinder
It hits and is grated, this coal pulverizer forms a whole with coal dust classifier, and structure is simple, compact, initial cost saves, especially suitable
For grinding, high water content brown coal and volatile matter are high, are easy the bituminous coal ground.
In above-mentioned medium-speed pulverizer work, since coal charge etc. can all cause impact, mill to Roller of Coal Grinder in work
Damage, so more demanding to the grinding roller being mounted in coal pulverizer.But the grinding roller of existing structure, high temperature resistant, impact resistance and resistance to
It is poor to grind performance, causes service life is short need to often shut down, detect maintenance, low, increase production cost of working efficiency etc. is caused to ask
Topic, has been unable to meet the work installation requirements of existing thermal power plant coal pulverizer, and this is current urgently to be resolved.
Therefore, based on the above issues, the utility model provides a kind of metal applied to thermal power plant medium-speed pulverizer
Ceramic Composite grinding roller.
Utility model content
Purpose of utility model: the purpose of the utility model is to provide a kind of gold applied to thermal power plant medium-speed pulverizer
Belong to Ceramic Composite grinding roller, design structure is reasonable, is easily installed and dismantles easy to use, the circle for being integrally formed and being used in combination
Grinding roller ontology and several cylindrical ceramic grain structures, extend the long service life of grinding roller, work without normal maintenance down
It is high-efficient, while solving the problems, such as existing medium-speed coal mill roller inconvenience installation, maintenance, and reduce production cost.
Technical solution: the utility model provides a kind of cermet composite mill applied to thermal power plant medium-speed pulverizer
Roller, including circular mill roller body, and the metal ceramic composite bed being arranged in circular mill roller body outer wall, and setting are made pottery in metal
Several molten steel tapping holes in porcelain composite layer, and be arranged in metal ceramic composite bed and be located at several molten steel tapping holes it
Between several ceramic particles, wherein the width T of several cylindrical ceramic particles is 12.5mm-25mm, depth D is 30mm-
45mm, and a face diameter of circular mill roller body is 1507mm, another side diameter is 1171mm.
The technical program, the metal ceramic composite bed, several molten steel tapping holes, structure between several ceramic particles
At honeycomb structure, and it is located in the outer wall tapered slope of circular mill roller body.
The technical program, if the circular mill roller body, several cylindrical ceramic particles, metal ceramic composite bed and
A dry molten steel tapping hole is an integral molding structure, and the height of circular mill roller body be 423mm and circular mill roller body diameter most
Big face with a thickness of 168mm.
The technical program, it is 40%-48% that the density in ceramic thin film, which is arranged in, in several described ceramic particles,
In, the diameter of phi 23mm-28mm of several molten steel tapping holes.
Compared with prior art, a kind of cermet applied to thermal power plant medium-speed pulverizer of the utility model is multiple
The beneficial effect for closing grinding roller is: its design structure is reasonable, it is easy to use to be easily installed disassembly, is integrally formed and is used in combination
Circular mill roller body, several cylindrical ceramic particles, metal ceramic composite bed and several molten steel cast pore structure, extend
The long service life of grinding roller, without normal maintenance down, work efficiency is high, more than the three times for traditional grinding roller, while solving existing
There is the problem of medium-speed coal mill roller inconvenience installation, maintenance, and reduces production cost.
Detailed description of the invention
Fig. 1 is a kind of cuing open for cermet composite grinding roll applied to thermal power plant medium-speed pulverizer of the utility model
Depending on structural schematic diagram；
Fig. 2 is a kind of edge of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer of the utility model
Circumference deployed configuration schematic diagram；
Wherein, serial number mark is as follows in figure: 1- circular mill roller body, 2- ceramic particle, 3- metal ceramic composite bed, 4- steel
Water tapping hole.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate.
Embodiment
A kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer as depicted in figs. 1 and 2, including
Circular mill roller body 1, and the metal ceramic composite bed 3 being arranged in 1 outer wall of circular mill roller body, and setting are multiple in cermet
Close layer 3 in several molten steel tapping holes 4, and be arranged in metal ceramic composite bed 3 and be located at several molten steel tapping holes 4 it
Between several ceramic particles 2, wherein the width T of several cylindrical ceramic particles 2 is 12.5mm-25mm, depth D is
30mm-45mm, and a face diameter of circular mill roller body 1 is 1507mm, another side diameter is 1171mm.
It is further preferred that the metal ceramic composite bed 3, several molten steel tapping holes 4, several ceramic particles 2 it
Between constitute honeycomb structure, and be located in the outer wall tapered slope of circular mill roller body 1；The circular mill roller body 1, several
Cylindrical ceramic particle 2, metal ceramic composite bed 3 and several molten steel tapping holes 4 are an integral molding structure, and round grinding roller sheet
The height of body 1 is 423mm and 1 diameter largest face of circular mill roller body with a thickness of 168mm；Several described ceramic particles 2 are set
Setting the density in ceramic thin film 3 is 40%-48%, wherein the diameter of phi 23mm-28mm of several molten steel tapping holes 4.
The cermet composite grinding roll applied to thermal power plant medium-speed pulverizer of this constructive embodiment, on the one hand it sets
Count it is structurally reasonable, be easily installed dismantle easy to use, circular mill roller body, several cylinders for being integrally formed and being used in combination
Shape ceramic particle, metal ceramic composite bed and several molten steel casting pore structure, extend the long service life of grinding roller, without normal
Work efficiency is high for maintenance down, is three times of traditional grinding roller, on the other hand solve existing medium-speed coal mill roller inconvenience installation,
The problem of maintenance, and reduce production cost.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
It for art personnel, without departing from the principle of this utility model, can also make several improvements, these improvement also should be regarded as
The protection scope of the utility model.
Claims (4)
1. a kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer, it is characterised in that: including circular mill
Roller body (1), and the metal ceramic composite bed (3) being arranged in circular mill roller body (1) outer wall, and setting are multiple in cermet
Several molten steel tapping holes (4) in layer (3) are closed, and setting is poured in metal ceramic composite bed (3) and positioned at several molten steel
Several ceramic particles (2) between blowhole (4), wherein the width T of several cylindrical ceramic particles (2) is 12.5mm-
25mm, depth D are 30mm-45mm, and a face diameter of circular mill roller body (1) is 1507mm, another side diameter is 1171mm.
2. a kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer according to claim 1,
Be characterized in that: the metal ceramic composite bed (3), several molten steel tapping holes (4) are constituted between several ceramic particles (2)
Honeycomb structure, and be located in the outer wall tapered slope of circular mill roller body (1).
3. a kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer according to claim 1 or 2,
It is characterized by: the circular mill roller body (1), several cylindrical ceramic particles (2), metal ceramic composite bed (3) and if
A dry molten steel tapping hole (4) is an integral molding structure, and the height of circular mill roller body (1) is 423mm and circular mill roller body
(1) diameter largest face with a thickness of 168mm.
4. a kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer according to claim 3,
Be characterized in that: the density that several described ceramic particles (2) are arranged in ceramic thin film (3) is 40%-48%, wherein several
The diameter of phi 23mm-28mm of a molten steel tapping hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821810891.7U CN209362599U (en) | 2018-11-05 | 2018-11-05 | A kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821810891.7U CN209362599U (en) | 2018-11-05 | 2018-11-05 | A kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209362599U true CN209362599U (en) | 2019-09-10 |
Family
ID=67835564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821810891.7U Active CN209362599U (en) | 2018-11-05 | 2018-11-05 | A kind of cermet composite grinding roll applied to thermal power plant medium-speed pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209362599U (en) |
-
2018
- 2018-11-05 CN CN201821810891.7U patent/CN209362599U/en active Active
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