CN102553677A - Coal fine crusher - Google Patents
Coal fine crusher Download PDFInfo
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- CN102553677A CN102553677A CN2010106104379A CN201010610437A CN102553677A CN 102553677 A CN102553677 A CN 102553677A CN 2010106104379 A CN2010106104379 A CN 2010106104379A CN 201010610437 A CN201010610437 A CN 201010610437A CN 102553677 A CN102553677 A CN 102553677A
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- coal
- tup
- main shaft
- bolt plate
- fine crusher
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Abstract
The invention discloses a coal fine crusher, which belongs to the field of boiler fuel preparation equipment for thermal power plants and comprises a main shaft and rotor assemblies sleeved on the main shaft. Each rotor assembly comprises a bolt plate, a hammer arm and a hammer head. The coal fine crusher is characterized in that at least three rotor assemblies are sleeved on the main shaft. The coal fine crusher is additionally provided with rotor assembly structures, the hammer arms are reasonably arranged on the bolt plates, the problems of poor particle size evenness, low crushing efficiency and fast hammer head abrasion for coal crushing are solved. The coal fine crusher has the advantages of being even in particle size, high in crushing efficiency and difficult in abrasion of the hammer head for coal crushing.
Description
Technical field
The present invention relates to the thermo-power station boiler oil and prepare apparatus field, relate in particular to a kind of coal fine crusher.
Background technology
Boiler oil prepares in the equipment link, and of paramount importance is exactly the coal crushing system, and it is divided into coarse crushing and fine crushing.Disintegrating machine mainly is divided into by the difference of its operation principle: hammer mill, jaw crusher, impact breaker, gyratory crusher.The central hammer mill that belongs to has advantageous high-quality at the coal crushing production field.Such as, on the low side when the coal hardness that needs are broken, and the build of coal itself is not very big, uses hammer mill just to can't be better in this case.It is bigger that jaw crusher is suitable for feed size; The coal crushing that the coal hardness ratio is higher; And that impact breaker is suitable for coal hardness is bigger, and the recursher that feed size is less than normal, gyratory crusher belong to energy-saving disintegrating machine; Have identical characteristic with the disintegrating machine of reaction type, hammer mill has just in time satisfied the unappeasable blank of other disintegrating machine in the field of cracking machine.
The main working parts of hammer mill is the rotor that has tup.Rotor is made up of main shaft, disk, bearing pin and tup.The motor drives rotor is rotation at a high speed in crusher chamber.Material inlet feeds in the machine material from top, receives the strike, impact, shearing, abrasive action of the tup of high-speed motion and pulverizes.In the rotor bottom, be provided with in sieve plate, the comminuting matter less than the grade of screen size and discharge through sieve plate, on sieve plate, continue to receive the strike and the grinding of tup greater than the coarse fraction detention of screen size, at last through outside the sieve plate discharge machine.Hammer mill also has the place of a lot of deficiencies.Reasons such as hammer mill is owing to lubricating grease is not enough, and lubricating grease is too much, and the lubricating grease filth is rotten often cause bearing running hot, cause damage of bearings; Because the tup wearing and tearing are excessive, the reason of grating fracture causes the excessive problem of discharging-material size; Because the grating slit is blocked, reinforced inhomogeneous, cause significantly reducing of output.Because bearing pin is loosening, the wearing and tearing of elastic ring cause elastic coupling to produce abnormal sound.Based on above various reasons, it is poor just to make that broken coal particle size uniformity appears in hammer mill, and crushing efficiency is low, the tup quick abrasion, and energy consumption is high, and maintenance cost is high, the problem that maintenance load is big.
Hammer type fine crusher is through the motor driven rotor; Rotor drives the rotation of epitrochanterian hammer plate hight speed; Hammered into shape the high-speed impact of plate after the material entering crusher chamber and pulverized, the finished product material is through outside the hammer type fine crusher lower end grating discharge machine, and discharging-material size can be adjusted through regulating the grating gap.
Hammer type fine crusher is usually used in broken hard and material that abrasion is weak in various, and the compression strength of its material is no more than 100MPa, and moisture content is less than 15%.Mostly the material that is broken is coal, salt, chalk, gypsum, brick and tile, lime stone etc.Also can be used as the stronger wood fragments head of broken fiber structure, elasticity and toughness.
Publication number is CN2688383; Open day discloses a kind of single hop fine crusher for the Chinese patent document of 2005.03.30; Comprise housing, the rotor that is located at drive tup in the crusher chamber, the counterattack grate plate that is arranged on the interior upward rear portion of crusher chamber that has feeding mouth, the arc grate plate that is arranged on the tup place; In crusher chamber, be provided with intermediate bracket, tup is arranged in the gap of intermediate bracket.Though this patent more traditional hammer type fine crusher on energy consumption decreases,, still exist broken coal particle size uniformity poor, crushing efficiency is low, the problem of tup quick abrasion.Wherein broken coal particle size uniformity difference is mainly reflected in the tup negligible amounts and tup is unreasonable at epitrochanterian distributed architecture, and coal can not repeatedly be knocked by tup uniformly.Crushing efficiency is low to be mainly reflected in the tup negligible amounts, and the number of times that knocks coal in the unit interval is less.And the tup quick abrasion is mainly reflected in the tup negligible amounts, and the tup diameter is bigger, and the number of times that tup contacts with coal in the unit interval is more and contact-making surface is bigger.
Summary of the invention
It is poor that the present invention is intended to the broken coal particle size uniformity of existing fine crusher, and crushing efficiency is low, and the problem of tup quick abrasion provides a kind of coal fine crusher that is applicable to the preparation of thermo-power station boiler oil.The present invention sets up the rotor assembly structure; And on the bolt plate, reasonably arrange hammerhead jib, and it is poor to efficiently solve broken coal particle size uniformity, and crushing efficiency is low; The problem of tup quick abrasion has broken coal epigranular, high, the nonabradable characteristics of tup of crushing efficiency.
In order to realize the foregoing invention purpose, the technical scheme that the present invention adopts is:
The coal fine crusher comprises main shaft, is enclosed within the rotor assembly on the main shaft, and rotor assembly comprises bolt plate, hammerhead jib and tup, it is characterized in that: on main shaft, be with 3 rotor assemblies at least side by side.
The axis of each rotor assembly on the said main shaft is interspersed.
Said bolt plate is 3-18.
Connect through positioning sleeve between the bolt plate of said each adjacent rotor assembly.
Said bolt plate two sides all are equipped with hammerhead jib, the hammerhead jib position correspondence or the interlaced arrangement of two sides.
Said tup diameter is 30-80mm.
Said bolt plate thickness is 18-40mm.
During use, open motor, motor rotates the main shaft that drives shaft coupling and rotates; The rotor assembly that is enclosed within on the main shaft begins to rotate, and promptly the bolt plate rotates and drives the hammerhead jib rotation, rotates thereby drive tup; Coal gets into crusher chamber from charging aperture, and coal contacts with tup, and tup smashes coal; The coal that is crashed to pieces is beaten on the crushing shell modular assembly, and the tup that bounce-back returns to be rotated once more smashes, owing to be with 3 rotor assemblies at least side by side on the main shaft; Be that the bolt plate is at least 3, can broken more coal in the unit interval, the bolt plate is many; The small size tup is also corresponding to be increased, and coal is repeatedly knocked by the small size tup in the unit interval, has improved the percentage of damage and the coal crushing uniformity of coal.Bolt plate two sides all are provided with hammerhead jib, and the hammerhead jib position correspondence or the interlaced arrangement of two sides, have further improved the coal crushing uniformity.The small size tup increases, and single small size tup and coal frequency of exposure are less in the unit interval, and contact-making surface is less, so reduced the wearing and tearing of tup.
Beneficial effect of the present invention mainly shows the following aspects:
One, on main shaft, is with 3 rotor assemblies at least side by side; Promptly have 3 bolt plates at least; Can broken more coal in unit interval, the bolt plate is many, and the small size tup is also corresponding to be increased; Coal is repeatedly knocked by the small size tup in unit interval, has improved the percentage of damage and the coal crushing uniformity of coal.
Two, the axis with each rotor assembly on the main shaft is interspersed, and the bolt plate is staggered, not on same horizontal level; The bolt plate more crypto set that distributes; Correspondence is arranged on hammerhead jib on the bolt plate more crypto set that distributes, and the broken coal number of times of tup is more, has improved the coal particle size uniformity.
Three, difference pin joint hammerhead jib on bolt plate two sides, the hammerhead jib position of two sides is corresponding to be arranged.Hammerhead jib termination key connects tup, owing on the bolt plate two sides hammerhead jib is set all, and corresponding layout, coal drops on same position and will be knocked twice like this, so strengthened the crushing efficiency of coal.Coal can repeatedly be knocked by tup uniformly, has also improved the uniformity of coal granularity.
Four, difference pin joint hammerhead jib on bolt plate two sides, the hammerhead jib position interlaced arrangement of two sides.Hammerhead jib termination key connects tup; Owing to hammerhead jib all is set on the bolt plate two sides, and interlaced arrangement, the bolt plate more crypto set that distributes like this; Coal drops on everywhere and all can be knocked; And the coal that bounce-back is returned is repeatedly knocked by tup uniformly, has improved the uniformity of coal granularity, has also strengthened the crushing efficiency of coal.
Five, rotor assembly increases; Compared to a rotor assembly, its corresponding tup increases, and the tup diameter adopts the 30-80mm size; This single small size tup is just less with the number of times that coal contacted in the unit interval, has just reduced the wearing and tearing of single small size tup.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a cross-sectional view of the present invention
Fig. 3 is an embodiment of the invention structural representation
Fig. 4 is an embodiment of the invention structural representation
Fig. 5 is an embodiment of the invention structural representation
Fig. 6 is an embodiment of the invention structural representation
Fig. 7 is an embodiment of the invention structural representation
Mark among the figure: 1, main shaft, 2, rotor assembly, 3, the bolt plate, 4, hammerhead jib, 5, tup, 6, positioning sleeve.
The specific embodiment
Embodiment 1
As depicted in figs. 1 and 2, the coal fine crusher comprises main shaft 1, is enclosed within the rotor assembly 2 on the main shaft 1, and rotor assembly 2 comprises bolt plate 3, hammerhead jib 4 and tup 5, on main shaft 1, is with 3 rotor assemblies 2 side by side.Connect through positioning sleeve 6 between the bolt plate 3 of said each adjacent rotor assembly 2.Bolt plate 3 thickness are 18mm.Tup 5 diameters are 30mm.
As shown in figures 1 and 3, the coal fine crusher comprises main shaft 1, is enclosed within the rotor assembly 2 on the main shaft 1, and rotor assembly 2 comprises bolt plate 3, hammerhead jib 4 and tup 5, on main shaft 1, is with 5 rotor assemblies 2 side by side.Connect through positioning sleeve 6 between the bolt plate 3 of said each adjacent rotor assembly 2.Bolt plate 3 thickness are 25mm.Tup 5 diameters are 40mm.The axis of each rotor assembly 2 on the said main shaft 1 is interspersed.
Embodiment 3
Like Fig. 1 and shown in Figure 4, the coal fine crusher comprises main shaft 1, is enclosed within the rotor assembly 2 on the main shaft 1, and rotor assembly 2 comprises bolt plate 3, hammerhead jib 4 and tup 5, on main shaft 1, is with 8 rotor assemblies 2 side by side.Connect through positioning sleeve 6 between the bolt plate 3 of said each adjacent rotor assembly 2.Bolt plate 3 thickness are 30mm.Tup 5 diameters are 50mm.Said bolt plate 3 two sides all are equipped with hammerhead jib 4, and hammerhead jib 4 positions of two sides are corresponding to be arranged.
Like Fig. 1 and shown in Figure 5, the coal fine crusher comprises main shaft 1, is enclosed within the rotor assembly 2 on the main shaft 1, and rotor assembly 2 comprises bolt plate 3, hammerhead jib 4 and tup 5, on main shaft 1, is with 12 rotor assemblies 2 side by side.Connect through positioning sleeve 6 between the bolt plate 3 of said each adjacent rotor assembly 2.Bolt plate 3 thickness are 32mm.Tup 5 diameters are 60mm.Said bolt plate 3 two sides all are equipped with hammerhead jib 4, the hammerhead jib 4 position interlaced arrangement of two sides.
Like Fig. 1 and shown in Figure 6, the coal fine crusher comprises main shaft 1, is enclosed within the rotor assembly 2 on the main shaft 1, and rotor assembly 2 comprises bolt plate 3, hammerhead jib 4 and tup 5, on main shaft 1, is with 15 rotor assemblies 2 side by side.Connect through positioning sleeve 6 between the bolt plate 3 of said each adjacent rotor assembly 2.Bolt plate 3 thickness are 35mm.Tup 5 diameters are 70mm.The axis of each rotor assembly 2 on the said main shaft 1 is interspersed.Said bolt plate 3 two sides all are equipped with hammerhead jib 4, and hammerhead jib 4 positions of two sides are corresponding to be arranged.
Like Fig. 1 and shown in Figure 7, the coal fine crusher comprises main shaft 1, is enclosed within the rotor assembly 2 on the main shaft 1, and rotor assembly 2 comprises bolt plate 3, hammerhead jib 4 and tup 5, on main shaft 1, is with 18 rotor assemblies 2 side by side.Connect through positioning sleeve 6 between the bolt plate 3 of said each adjacent rotor assembly 2.Bolt plate 3 thickness are 40mm.Tup 5 diameters are 80mm.The axis of each rotor assembly 2 on the said main shaft 1 is interspersed.Said bolt plate 3 two sides all are equipped with hammerhead jib 4, the hammerhead jib 4 position interlaced arrangement of two sides.
During use, open motor, motor rotates the main shaft 1 that drives shaft coupling and rotates; The rotor assembly 2 that is enclosed within on the main shaft 1 begins to rotate, and promptly bolt plate 3 rotates and drives hammerhead jib 4 rotations, rotates thereby drive tup 5; Coal gets into crusher chamber from charging aperture, and coal contacts with tup 5, and tup 5 smashes coal; The coal that is crashed to pieces is beaten on the crushing shell modular assembly, and the tup 5 that bounce-back returns to be rotated once more smashes, owing to be with 3 rotor assemblies 2 at least side by side on the main shaft 1; Be that bolt plate 3 is at least 3, can broken more coal in the unit interval, bolt plate more than 3; Small size tup 5 is also corresponding to be increased, and coal is repeatedly knocked by small size tup 5 in the unit interval, has improved the percentage of damage and the coal crushing uniformity of coal.Bolt plate 3 two sides all are provided with hammerhead jib 4, and the hammerhead jib 4 position correspondence or the interlaced arrangement of two sides, have further improved the coal crushing uniformity.Small size tup 5 increases, and single small size tup 5 is less with the coal frequency of exposure in the unit interval, and contact-making surface is less, so reduced the wearing and tearing of tup 5.
The invention is not restricted to the foregoing description, but all should fall within the claim protection domain of the present invention.
Claims (7)
1. coal fine crusher; Comprise main shaft (1), be enclosed within the rotor assembly (2) on the main shaft (1); Rotor assembly (2) comprises bolt plate (3), hammerhead jib (4) and tup (5), it is characterized in that: on main shaft (1), be with 3 rotor assemblies (2) at least side by side.
2. according to the said coal fine crusher of claim 1, it is characterized in that: the axis of each rotor assembly (2) on the said main shaft (1) is interspersed.
3. according to claim 1 or 2 said coal fine crushers, it is characterized in that: said bolt plate (3) is 3-18.
4. according to the said coal fine crusher of claim 3, it is characterized in that: connect through positioning sleeve (6) between the bolt plate (3) of said each adjacent rotor assembly (2).
5. according to the said coal fine crusher of claim 4, it is characterized in that: said bolt plate (3) two sides all are equipped with hammerhead jib (4), the hammerhead jib of two sides (4) position correspondence or interlaced arrangement.
6. according to the said coal fine crusher of claim 1, it is characterized in that: said tup (5) diameter is 30-80mm.
7. according to the said coal fine crusher of claim 1, it is characterized in that: said bolt plate (3) thickness is 18-40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106104379A CN102553677A (en) | 2010-12-29 | 2010-12-29 | Coal fine crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106104379A CN102553677A (en) | 2010-12-29 | 2010-12-29 | Coal fine crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102553677A true CN102553677A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106104379A Pending CN102553677A (en) | 2010-12-29 | 2010-12-29 | Coal fine crusher |
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| Country | Link |
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| CN (1) | CN102553677A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700146A (en) * | 2021-07-02 | 2022-07-05 | 淮北矿业股份有限公司 | Two-stage intelligent coal slime crusher and intelligent coal slime crushing method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2917068A1 (en) * | 1979-04-27 | 1980-11-06 | Halbach & Braun | Single roller crusher for e.g. coal - has feed tunnel width narrowing towards smaller operating width roller set |
| JPH07241485A (en) * | 1994-03-05 | 1995-09-19 | Fuji Kogyo Kk | Spider protective member fixing structure |
| CN2244962Y (en) * | 1995-12-22 | 1997-01-15 | 朱士元 | Vertical powdered coal mill |
| CN2271410Y (en) * | 1996-09-12 | 1997-12-31 | 顾齐航 | Hammer crusher |
| CN2617466Y (en) * | 2003-05-04 | 2004-05-26 | 苏州中材非金属矿工业设计研究院有限公司 | High efficient grinding stripper |
| CN2686345Y (en) * | 2004-04-09 | 2005-03-23 | 李正永 | Direct-hit fodder masher |
| CN201768581U (en) * | 2010-07-29 | 2011-03-23 | 刘国斌 | Non-block vertical crusher |
| CN201940266U (en) * | 2010-12-29 | 2011-08-24 | 四川省宜宾惠美线业有限责任公司 | Fine coal crusher |
-
2010
- 2010-12-29 CN CN2010106104379A patent/CN102553677A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2917068A1 (en) * | 1979-04-27 | 1980-11-06 | Halbach & Braun | Single roller crusher for e.g. coal - has feed tunnel width narrowing towards smaller operating width roller set |
| JPH07241485A (en) * | 1994-03-05 | 1995-09-19 | Fuji Kogyo Kk | Spider protective member fixing structure |
| CN2244962Y (en) * | 1995-12-22 | 1997-01-15 | 朱士元 | Vertical powdered coal mill |
| CN2271410Y (en) * | 1996-09-12 | 1997-12-31 | 顾齐航 | Hammer crusher |
| CN2617466Y (en) * | 2003-05-04 | 2004-05-26 | 苏州中材非金属矿工业设计研究院有限公司 | High efficient grinding stripper |
| CN2686345Y (en) * | 2004-04-09 | 2005-03-23 | 李正永 | Direct-hit fodder masher |
| CN201768581U (en) * | 2010-07-29 | 2011-03-23 | 刘国斌 | Non-block vertical crusher |
| CN201940266U (en) * | 2010-12-29 | 2011-08-24 | 四川省宜宾惠美线业有限责任公司 | Fine coal crusher |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700146A (en) * | 2021-07-02 | 2022-07-05 | 淮北矿业股份有限公司 | Two-stage intelligent coal slime crusher and intelligent coal slime crushing method |
| CN114700146B (en) * | 2021-07-02 | 2023-09-01 | 淮北矿业股份有限公司 | Two-section intelligent coal slime crusher and intelligent coal slime crushing method |
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Application publication date: 20120711 |