CN206121853U - High -efficient ceramic grinding roller and ceramic lining plate - Google Patents
High -efficient ceramic grinding roller and ceramic lining plate Download PDFInfo
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- CN206121853U CN206121853U CN201621134426.7U CN201621134426U CN206121853U CN 206121853 U CN206121853 U CN 206121853U CN 201621134426 U CN201621134426 U CN 201621134426U CN 206121853 U CN206121853 U CN 206121853U
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Abstract
The utility model belongs to the technical field of coal pulverizer equipment, concretely relates to high -efficient ceramic grinding roller and ceramic lining plate, ceramic grinding roller and ceramic lining plate have constituteed a relative motion's grinding mechanism, and ceramic grinding roller includes grinding roller base member, gluing agent layer and composite ceramic layer, and ceramic lining plate includes welt base member, gluing agent layer and composite ceramic layer, the material on composite ceramic layer in by carborundum, silicon nitride, tungsten carbide, aluminium oxide and zirconia one kind or several kinds of complexes form, the gluing agent that gluing agent layer is high temperature resistant, viscidity is strong, the grinding roller base member is made by the metal, the welt base member is made by the metal, the composite ceramic layer of pottery grinding roller is assembled by ceramic module and is formed, has formed the gap that can increase ceramic surface frictional force between the ceramic module. The utility model has the advantages of simple structure, reasonable in design, hardness is high, and long service life practices thrift the cost, and economy is suitable for, easily on a large scale promotes and uses.
Description
Technical field：
This utility model belongs to coal pulverizer equipment technical field, and in particular to a kind of high-efficiency ceramic grinding roller and ceramic lining plate.
Background technology：
Coal pulverizer is after material is broken, then the key equipment crushed, and coal pulverizer is widely used in thermal power plant, steel
The big yield powder production of factory, cement plant coal dust equipment and gangue.The pattern of coal pulverizer is a lot, by the rotating speed of coal-grinding workpiece
Can be divided into three types, i.e. low-speed coal mill, medium-speed pulverizer and high speed coal mill, wherein medium-speed pulverizer rotating speed be 50～
300 revs/min, species is more.Common are square position mill, bowl shaped mill, E types mill and roller mill.Their common feature is grinding section
Part is made up of the milling body of two groups of relative motioies.Coal cinder is squeezed between this two groups of milling body surfaces, mills and be crushed.
Meanwhile, coal is dried by the hot blast for being passed through coal pulverizer, and coal dust is sent in the separator on area top of milling.After separated, necessarily
The coal dust of granularity is taken out of outside mill with air-flow, and coarse grained coal dust returns to the area that mills and refaces.Medium-speed pulverizer have facility compact,
Take up an area little, power consumption to save（About the 50～75% of low speed coal mill）, noise is little, operation control ratio is lighter sensitive etc. significantly excellent
Point；But coal pulverizer structure and manufacture are more complicated, and maintenance cost is larger, and is not suitable for grinding harder coal.It is coal-fired in Large Copacity
In boiler, bowl formula medium-speed pulverizer is used more.
Broken rear granularity is that the raw coal of 20～30mm enters medium-speed pulverizer mill by coal spout.Mill is in drive plate vertical shaft
Drive lower middling speed（20～330r/min）Rotate, coal is moved to surrounding by centrifugal action, contacted with grinding roller and mill.Grinding roller is received
Tangential friction force and roll, coal is milled into coal dust by 2 relative motioies milled between part（Fineness of pulverized coal R90=15%～30%, coal
Powder uniformity n=1.0～1.1）.
The mill failure mode of part of coal pulverizer is mainly the three body abrasive materials mill that coal is produced to the frictional dissipation of grinding roller and mill
Damage, play micro- cutting, ditch dug with a plow flow and carbide that the hard particles in abrasive manner mainly coal are caused to part surface of milling
Broken and peeling.The mill abrasion of part of coal pulverizer will cause pulverizer capacity not enough, can not only increase energy consumption, and affect pot
The burning of stove.
Utility model content：
In place of this utility model makes up and improves above-mentioned the deficiencies in the prior art, there is provided a kind of simple structure, design
Rationally, hardness height, long service life, a kind of cost-effective, economic and practical high-efficiency ceramic grinding roller and ceramic lining plate, can be advised greatly
Promote and use in mould ground.
The technical solution adopted in the utility model is：A kind of high-efficiency ceramic grinding roller and ceramic lining plate, ceramic grinding roller and ceramics
Liner plate constitutes the milling mechanism of a relative motion, and ceramic grinding roller includes grinding roller matrix, adhesive layer and composite ceramic layer, pottery
Ceramic liner plate includes liner plate matrix, adhesive layer and composite ceramic layer.
The material of described composite ceramic layer by the one kind in carborundum, silicon nitride, tungsten carbide, aluminium oxide and zirconium oxide or
Person is several to be composited.
Described adhesive layer is high temperature resistant, the adhesive that viscosity is strong.
Described grinding roller matrix is made of metal.
Described liner plate matrix is made of metal.
The composite ceramic layer of described ceramic grinding roller is assembled by ceramic module, defines and can increase between ceramic module
The gap of big ceramic surface frictional force.
The beneficial effects of the utility model：Simple structure, reasonable in design, hardness is high, and long service life is cost-effective, Jing
Ji is suitable for, it is easy to promotes on a large scale and uses.Its major advantage is as follows：
1）, the most obvious benefit of this structure be that work surface thickness range interior energy certain inward accomplishes that hardness is very high, very
Wear-resisting, remaining thickness has sufficient toughness, prevents brittle cracking.Composite construction is reached very high through complicated heat treatment
Hardness, fully meet under various hardness materials and working condition use.Pass through high-temperature-resistant adhesive between two ceramic modules
Connection, so increases the toughness of roller skin entirety, prevents the brittle fracture of roller skin or ceramic particle from coming off block etc., while can be fine
The various impacts that are subject in use of the ceramic grinding roller of reply, it is reasonable in design, effectively can increase the service life.
2）, composite ceramic layer it is assembled by ceramic module, certain gap is just formed between ceramic module so that ceramics
The frictional force increase on surface, has good engagement to material, is conducive to increasing mill hourly output, reduces raw material operation electricity
Consumption, and cause roller skin coefficient of friction increase, reduce the relative slip of grinding roller and mill, be very beneficial for protection equipment and
Slow down the roller skin rate of wear, it is cost-effective.
3）, ceramic grinding roller hardness is high, the characteristic of long service life, determines that ceramic roller skin will be greatlyd save into during use
This, reduces the number of times of the replacing of roller skin and flange, overhauls convenient.A large amount of labour forces and time cost are saved.
4）, the adhesive that used of described adhesive layer have the advantages that high temperature resistant, viscosity are strong.Effectively prevent wear-resisting
Ceramic grinding roller causes roller skin to come off when working temperature is too high, reasonable in design, safe and reliable.
5）, described ceramic lining plate, its wearability is identical with ceramic grinding roller, the overall longevity of such Roller of Coal Grinder and liner plate
Life improves nearly 10 times.This will save substantial amounts of cost with it is artificial.
6）, technique be applied to coal pulverizer, and legacy device can also be transformed and be installed.Market prospect can
See, it is reliable, it is feasible, add difficulty so as to reduce cost and machine.
Description of the drawings：
Fig. 1 is the structural representation of ceramic grinding roller in this utility model.
Fig. 2 is the structural representation of ceramic lining plate in this utility model.
Fig. 3 is the wear rate bar shaped cartogram of Gao Ge, composite ceramicses, built-up welding.
Specific embodiment：
With reference to each figure, a kind of high-efficiency ceramic grinding roller and ceramic lining plate, ceramic grinding roller and ceramic lining plate constitute one it is relative
The milling mechanism of motion, ceramic grinding roller include grinding roller matrix 3, adhesive layer 2 and composite ceramic layer 1, and ceramic lining plate includes liner plate
Matrix 4, adhesive layer 2 and composite ceramic layer 1；The material of described composite ceramic layer 1 is by carborundum, silicon nitride, tungsten carbide, oxygen
One or several in change aluminum and zirconium oxide are composited；Described adhesive layer 2 is high temperature resistant, the adhesive that viscosity is strong；
Described grinding roller matrix 3 is made of metal；Described liner plate matrix 4 is made of metal；The composite ceramicses of described ceramic grinding roller
Layer 1 is assembled by ceramic module, and the gap that can increase ceramic surface frictional force is defined between ceramic module.
It is made using antifriction alloy more than existing Roller of Coal Grinder, and wear-resisting ceramic grinding roller is in equal coal pulverizer work
In the case of condition and material, its service life at least reaches more than 3 times of high-chromium alloy grinding roller, and alloy grinding roller is resistance to ceramic grinding roller
Mill property is contrasted into following table：Intensity and abrasion of the table 1 for general mill feed material, intensity of the table 2 for conventional high-abrasive material：
The intensity and abrasion index of 1-material of table
| Mill feed material type | Hardness（Hv） | Abrasion index（YGP） |
| Coal | 60-120 | |
| Limestone | 200 | 16-30 |
| Grog | 700 | 120-150 |
| Slag | 900 | 160-180 |
| Slag | 1100 | 200 |
| Quartz | 1800-1900 | ＞ 200 |
| Iron ore | 1500 | 120 |
The hardness of 2-high-abrasive material of table
| Material | Hardness (Hv) | Material | Hardness (Hv) |
| Manganese steel | 200 | Chrome-molybdenum steel | 300-350 |
| Martensite steel | 450-550 | Nickel hard alloy IV | 550-600 |
| High-chromium alloy | 600-700 | Built-up welding | 650-750 |
| Composite ceramicses | 2100 |
Mill feed material hardness highest is quartz as can be seen from the above table（Free silicon dioxide）, hardness is up to 1800-
1900HV.In high-abrasive material, hardness highest is composite ceramicses, and hardness may be up to more than 2100HV.And the hardness of Gao Ge is only
600 or so, the hardness of built-up welding is 650 or so, and composite ceramicses hardness is more than 3 times of high chromium and built-up welding.The characteristic of intensity is determined
The wear rate of composite ceramicses, wear rate cause the composite ceramicses grinding roller to have more in the case of equal mill working and mill feed material
Long service life.
Three kinds of high-abrasive materials such as Gao Ge, composite ceramicses, built-up welding wear and tear when applying in coal mill, raw material mill, cement grinding mill respectively
The bar shaped cartogram of rate is with reference to Fig. 3.The most obvious benefit of this structure is that work surface thickness range interior energy certain inward is accomplished
Hardness is very high, very wear-resisting, and remaining thickness has sufficient toughness, prevents brittle cracking.Composite construction is at complicated warm
Reason, reaches very high hardness, fully meets.By resistance between two ceramic modules
High-temperature adhesives connect, and so increase the toughness of roller skin entirety, prevent the brittle fracture of roller skin or ceramic particle from coming off block etc., together
When can be good at tackling the various impacts that ceramic grinding roller is subject in use, reasonable in design, effectively can extend makes
Use the life-span.Composite ceramic layer 1 is assembled by ceramic module, just forms certain gap so that ceramic watch between ceramic module
The frictional force increase in face, has good engagement to material, is conducive to increasing mill hourly output, reduces raw material operation electricity
Consumption, and cause roller skin coefficient of friction increase, reduce the relative slip of grinding roller and mill, be very beneficial for protection equipment and
Slow down the roller skin rate of wear, it is cost-effective.Ceramic grinding roller hardness is high, the characteristic of long service life, determines that ceramic roller skin is used
Period will greatly save cost, reduce the number of times of the replacing of roller skin and flange, overhaul convenient.Saved a large amount of labour forces and
Time cost.The adhesive used by described adhesive layer 2 has the advantages that high temperature resistant, viscosity are strong.Effectively prevent wear-resisting
Ceramic grinding roller causes roller skin to come off when working temperature is too high.Described ceramic lining plate, its wearability are identical with ceramic grinding roller,
So Roller of Coal Grinder and liner plate bulk life time improve it is nearly 10 times, this will save substantial amounts of cost with it is artificial.Technique is fitted
For coal pulverizer, and legacy device can also be transformed and be installed.Simple structure of the present utility model, it is reasonable in design, firmly
Degree is high, and long service life is cost-effective, economic and practical, it is easy to promotes on a large scale and uses.
Claims (6)
1. a kind of high-efficiency ceramic grinding roller and ceramic lining plate, ceramic grinding roller and ceramic lining plate constitute the mill of a relative motion
Structure, it is characterised in that：Ceramic grinding roller includes grinding roller matrix（3）, adhesive layer（2）And composite ceramic layer（1）, ceramic lining plate includes
Liner plate matrix（4）, adhesive layer（2）And composite ceramic layer（1）.
2. a kind of high-efficiency ceramic grinding roller according to claim 1 and ceramic lining plate, it is characterised in that：Described composite ceramicses
Layer（1）Material be composited by one or several in carborundum, silicon nitride, tungsten carbide, aluminium oxide and zirconium oxide.
3. a kind of high-efficiency ceramic grinding roller according to claim 1 and ceramic lining plate, it is characterised in that：Described adhesive layer
（2）For the strong adhesive of high temperature resistant, viscosity.
4. a kind of high-efficiency ceramic grinding roller according to claim 1 and ceramic lining plate, it is characterised in that：Described grinding roller matrix
（3）It is made of metal.
5. a kind of high-efficiency ceramic grinding roller according to claim 1 and ceramic lining plate, it is characterised in that：Described liner plate matrix
（4）It is made of metal.
6. a kind of high-efficiency ceramic grinding roller according to claim 1 and ceramic lining plate, it is characterised in that：Described ceramic grinding roller
Composite ceramic layer（1）It is assembled by ceramic module, define between ceramic module and can increase ceramic surface frictional force
Gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621134426.7U CN206121853U (en) | 2016-10-19 | 2016-10-19 | High -efficient ceramic grinding roller and ceramic lining plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621134426.7U CN206121853U (en) | 2016-10-19 | 2016-10-19 | High -efficient ceramic grinding roller and ceramic lining plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206121853U true CN206121853U (en) | 2017-04-26 |
Family
ID=58573823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621134426.7U Expired - Fee Related CN206121853U (en) | 2016-10-19 | 2016-10-19 | High -efficient ceramic grinding roller and ceramic lining plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206121853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106391207A (en) * | 2016-10-19 | 2017-02-15 | 张弘 | High-efficiency ceramic grinding roller and ceramic lining plate |
| CN111604122A (en) * | 2020-05-26 | 2020-09-01 | 佛山兴技源科技有限公司 | Consumable component with structured ceramic tile plate in a mill, roller press and method for making same |
-
2016
- 2016-10-19 CN CN201621134426.7U patent/CN206121853U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106391207A (en) * | 2016-10-19 | 2017-02-15 | 张弘 | High-efficiency ceramic grinding roller and ceramic lining plate |
| CN111604122A (en) * | 2020-05-26 | 2020-09-01 | 佛山兴技源科技有限公司 | Consumable component with structured ceramic tile plate in a mill, roller press and method for making same |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20171019 |