CN207430394U - The special powder concentrator of coal mill system - Google Patents
The special powder concentrator of coal mill system Download PDFInfo
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- CN207430394U CN207430394U CN201721260966.4U CN201721260966U CN207430394U CN 207430394 U CN207430394 U CN 207430394U CN 201721260966 U CN201721260966 U CN 201721260966U CN 207430394 U CN207430394 U CN 207430394U
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- pulverizing chamber
- cone
- powder concentrator
- cage rotor
- upper shell
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Abstract
The utility model discloses a kind of special powder concentrators of coal mill system, including sequentially connected upper shell, middle cone, lower shell, middle cone includes inner cone, outer cone, lower shell connects ventilation blower, the fine powder and the mixture of hot wind that ventilation blower mills grinding machine are sent in the lower shell of powder concentrator together, inner cone bottom connects pulverizing chamber, pulverizing chamber bottom connection coarse fodder pipe；The pressure roller shaft of several row's steel-tooths is equipped in pulverizing chamber equipped with surface, upper shell bottom is equipped with cage rotor, vent passages are left between cage rotor and upper shell barrel；The shaft connection motor of cage rotor, cage rotor top is equipped with chimney fan.The powder concentrator that the utility model is set is separated in advance due to fine grained, pulverizing chamber further crushes coarse granule, so that coarse grained grain size gap is smaller, the material particles for re-entering into grinding machine are more uniformly neat, the mill efficiency of grinder system greatly improves, be conducive to the even running of grinding machine, improve system throughput.
Description
Technical field
The present invention relates to powder concentrator device fields, are specially a kind of special powder concentrator of coal mill system.
Background technology
What raw coal was milled（Coal mill system）The course of work is：Raw coal is sent into mill feeding device by feeding equipment, in object
While being slipped under material, raw coal is dried into hot wind by blast pipe, is milled after fully drying in abrasive body, in raw coal
While being broken and grind, by ad hoc ventilation blower by the drawing mechanism of grinding machine by ground fine powder together with having used
It crosses hot wind and suctions out grinding machine together, the mixture of fine powder and hot wind separates underproof coarse powder by ad hoc powder concentrator, is sending
Grinding machine is returned to re-grind.Powder concentrator is to aim at the matching used static rank bale breaking equipment of grinding machine, the material that grinding machine crushes out
Grain distribution is very wide, after selecting powder by powder concentrator, at fine grained first sorting, can will directly obtain finished product, and bulky grain continues
It is crushed again into roll squeezer or ball mill.At present, in building materials and metallurgy industry, powder concentrator is beaten since it has both material
It dissipates, dry, the function of classification, various grinding process systems can be formed with grinding machine, being obtained in building materials, cement, coal mill industry
It is widely applied.
After the completion of existing powder concentrator selects powder, coarse powder is discharged from the discharge port of lower end, is continued to send grinding machine back to and be milled.But by
It is had differences in filtering out the coarse grained particle size of part, seriously affects the further pressure roller effect of grinder, the work of grinding machine
It is larger to make burden, and work efficiency reduces.Therefore, it is necessary to it is relatively easy to seek a kind of structure, can largely reduce
Grain object particle size difference, beneficial to milling for follow-up grinding machine.
The content of the invention
To solve the above problems, the invention discloses a kind of special powder concentrators of coal mill system.
In order to reach object above, the present invention provides following technical solution：
A kind of special powder concentrator of coal mill system, it is characterised in that：Including sequentially connected upper shell, middle cone, lower shell,
The middle cone includes inner cone, outer cone, and the outer cone is connected with upper shell, lower shell, and the lower shell connects ventilation blower,
The fine powder and the mixture of hot wind that ventilation blower mills grinding machine are sent in the lower shell of powder concentrator together, and the inner cone bottom connects
Pulverizing chamber is connect, the pulverizing chamber bottom connects coarse fodder pipe；Pressure roller shaft is equipped in the pulverizing chamber, the surface of the pressure roller shaft is equipped with
Several row's steel-tooths are often staggered between row's steel-tooth；The pressure roller axis connection crushes motor, and the crushing motor is arranged on crushing
On the outside of the locular wall of room；The upper shell bottom is equipped with cage rotor, and vent passages are left between cage rotor and upper shell barrel；
Cage rotor includes the directing vane for being connected with the rotating shaft impeller, connecting impeller；The shaft connects motor, and the motor is arranged on
The top of upper shell；Chimney fan is equipped with above the cage rotor.
Further, the inner wall of the pulverizing chamber, which is equipped with, crushes protrusion.The steel-tooth, will with crushing male cooperation effect
Larger coarse granule crushes, and ensures the coarse grained even particle size distribution discharged from coarse fodder pipe.
Further, placing box is equipped on the outside of the locular wall of the pulverizing chamber, the crushing motor is arranged in placing box.
Further, deflection cone is connected between the pulverizing chamber and coarse fodder pipe, the deflection cone is upper coarse and lower fine.Deflection cone
Play collection and cushioning effect.
Further, the pulverizing chamber connection blowing device, the blowing device include blowpipe, and the blowpipe connects wind
Machine.The wind turbine provides hot wind, and the particle powder being adhered on pulverizing chamber locular wall is blown down.
The operation principle of the special powder concentrator of coal mill system of the present invention：The hot wind swept by ventilation blower wind is with material by selecting powder
The lower shell of machine enters in powder concentrator, after inside and outside cone rectification, slows down along the circular passage between outer cone and inner cone and rises, into
Enter to upper shell, vent passages are left between cage rotor and upper shell barrel；Hot wind forms vortex gas-flow in cage rotor,
Under the turning effort of the water conservancy diversion and rotor of wind guide vane, stable horizontal vortex powder-separating area is formed between wind guide vane and rotor.
The dust particles moved in vortex will be acted on by gravity, wind-force and rotary centrifugal force simultaneously, and tiny slight particle is with air-flow
Be inhaled into internal rotor flow through chimney fan enter chimney fan connection dust-precipitator be separated as finished product fine powder.It is therein thick
Particle realizes sorting through slipping into interior centrum along cage rotor side wall under gravitational settling, centrifugal force effect, and coarse particles then fall, and pass through
Inner cone is pooled to pulverizing chamber, after the indoor crushing for crushing shaft is crushed, is pooled to coarse fodder pipe, returns to grinding machine and regrinds.Change
Rotor speed can effectively adjust finish fineness.
Fine powder is separated uses cyclone cylinder with harvester using efficient low-resistance.On the one hand the separating effect of fine powder is also improved,
On the other hand system flow can be simplified, save system investments.
Beneficial effects of the present invention are：1st, since fine grained is separated in advance, pulverizing chamber is further to coarse granule
It crushes so that coarse grained grain size gap is smaller, and it is more uniformly neat to re-enter into the material particles of grinding machine, grinder system
Mill efficiency greatly improves, and is conducive to the even running of grinding machine, improves system throughput；2nd, the separation selection by winnowing in coarse granule upper shell
When, it is affected by the wind with drying effect；3rd, powder concentrator reasonable in internal structure, grinding efficiency height, energy-saving effect become apparent from；4th, grasp
Make simply, fineness regulation is convenient；By change powder concentrator main motor rotating speed can in a big way it is interior adjust product it is thin
Degree.
Description of the drawings
The structure diagram of Fig. 1, the present invention；
The pulverizing chamber structure diagram of Fig. 2, the present invention；
The pulverizing chamber left view of Fig. 3, the present invention.
Wherein：Upper shell 1, middle cone 2, inner cone 21, outer cone 22, lower shell 3, pulverizing chamber 4, coarse fodder pipe 5, pressure roller shaft 6, steel
Tooth 61 crushes protrusion 7, crushes motor 8, cage rotor 9, impeller 91, directing vane 92, shaft 10, motor 11, chimney fan 12, puts
Put case 13, deflection cone 14, blowing device 15, blowpipe 151, wind turbine 152.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
Arrow direction is the flow direction of material and hot wind in Fig. 1.
As shown in Figure 1, Figure 2, Figure 3 shows, the special powder concentrator of a kind of coal mill system, including sequentially connected upper shell 1, middle cone
2nd, lower shell 3, middle cone include inner cone 21, outer cone 22, and outer cone is connected with upper shell, lower shell, lower shell connection ventilation
Machine, the fine powder and the mixture of hot wind that grinding machine is milled by ventilation blower are sent in the lower shell of powder concentrator together, inner cone bottom
Connect pulverizing chamber 4, pulverizing chamber bottom connection coarse fodder pipe 5；Pressure roller shaft 6 is equipped in pulverizing chamber, the surface of pressure roller shaft 6 is equipped with several rows
Steel-tooth 61 is often staggered between row's steel-tooth, and the inner wall of pulverizing chamber, which is equipped with, crushes protrusion 7；Steel-tooth is made with crushing male cooperation
With, larger coarse granule is crushed, ensure from coarse fodder pipe discharge coarse grained even particle size distribution, pressure roller axis connection powder
Broken motor 8, upper shell bottom are equipped with cage rotor 9, vent passages are left between cage rotor and upper shell barrel；Cage rotor
Including impeller 91, the directing vane 92 of connection impeller being connected with shaft 10；Shaft connects motor 11, and motor is arranged on upper shell
Top；Chimney fan 12 is equipped with above cage rotor.
In the present embodiment, placing box 13 is equipped on the outside of the locular wall of pulverizing chamber, crushes motor and be arranged in placing box, crush
Shaft is equipped with seal washer with pulverizing chamber locular wall junction, plays sealing function, and is set in pulverizing chamber with crushing shaft junction
There is seal closure.Sealing ring, seal closure play the role of sealing, and sealing effect is good, reasonable in internal structure so that grinding efficiency
It is high.Certainly, in order to ensure the stability of placing box, supporting rod, these prior arts can be equipped between placing box and outer centrum
One step improvement of carry out, in the present invention without repeating.
In the present embodiment, deflection cone 14 is connected between pulverizing chamber and coarse fodder pipe, the deflection cone is upper coarse and lower fine, water conservancy diversion
Cone plays collection and cushioning effect.
In the present embodiment, pulverizing chamber connection blowing device 15, blowing device include blowpipe 151, blowpipe connection wind turbine
152, wind turbine provides hot wind, and the particle powder being adhered on pulverizing chamber locular wall is blown down.Wind turbine uses small-sized fan, directly sets
It puts on the locular wall of pulverizing chamber.Blowing device can also blow down coarse fodder simultaneously, avoid blocking, and smaller coarse granule is directly fallen,
Larger coarse granule is crushed indoor steel-tooth and crushes.
In the present embodiment, the runner of motor is connected with the rotating shaft runner and passes through triangle band connection.
In the present embodiment, the section of inner cone 21 is circle, and the section of pulverizing chamber 4 is square, the section of deflection cone 14
For circle.It is often staggered between row's steel-tooth, plays better pulverization.Certainly can be set to according to actual needs arbitrary
Shape.
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes
Formed technical solution is combined by more than technical characteristic.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (5)
1. a kind of special powder concentrator of coal mill system, including sequentially connected upper shell, middle cone, lower shell, the middle cone bag
Inner cone, outer cone are included, the outer cone is connected with upper shell, lower shell, and the lower shell connects ventilation blower, and ventilation blower is by grinding machine
The fine powder and the mixture of hot wind milled are sent in the lower shell of powder concentrator together, and the inner cone bottom connects pulverizing chamber, institute
State pulverizing chamber bottom connection coarse fodder pipe；Pressure roller shaft is equipped in the pulverizing chamber, the surface of the pressure roller shaft is equipped with several row's steel-tooths,
Often it is staggered between row's steel-tooth；The pressure roller axis connection crushes motor, and the crushing motor is arranged on outside the locular wall of pulverizing chamber
Side；The upper shell bottom is equipped with cage rotor, and vent passages are left between cage rotor and upper shell barrel；Cage rotor bag
The directing vane for include and be connected with the rotating shaft impeller, connecting impeller；The shaft connects motor, and the motor is arranged on the upper of upper shell
Side；Chimney fan is equipped with above the cage rotor.
2. a kind of special powder concentrator of coal mill system as described in claim 1, it is characterised in that：It is set on the inner wall of the pulverizing chamber
There is crushing protrusion.
3. a kind of special powder concentrator of coal mill system as described in claim 1, it is characterised in that：On the outside of the locular wall of the pulverizing chamber
Equipped with placing box, the crushing motor is arranged in placing box.
4. a kind of special powder concentrator of coal mill system as described in claim 1, it is characterised in that：The pulverizing chamber and coarse fodder pipe it
Between be connected deflection cone, the deflection cone is upper coarse and lower fine.
5. a kind of special powder concentrator of coal mill system as described in claim 1, it is characterised in that：Material dress is blown in the pulverizing chamber connection
It puts, the blowing device includes blowpipe, and the blowpipe connects wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260966.4U CN207430394U (en) | 2017-09-28 | 2017-09-28 | The special powder concentrator of coal mill system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721260966.4U CN207430394U (en) | 2017-09-28 | 2017-09-28 | The special powder concentrator of coal mill system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207430394U true CN207430394U (en) | 2018-06-01 |
Family
ID=62295030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721260966.4U Active CN207430394U (en) | 2017-09-28 | 2017-09-28 | The special powder concentrator of coal mill system |
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| CN (1) | CN207430394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860343A (en) * | 2019-11-15 | 2020-03-06 | 南京钜力智能制造技术研究院有限公司 | External circulation system and process for raw material vertical mill |
| CN112844556A (en) * | 2021-01-05 | 2021-05-28 | 南京崇枫日用品有限公司 | Vertical mill equipment for cement processing |
-
2017
- 2017-09-28 CN CN201721260966.4U patent/CN207430394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860343A (en) * | 2019-11-15 | 2020-03-06 | 南京钜力智能制造技术研究院有限公司 | External circulation system and process for raw material vertical mill |
| CN112844556A (en) * | 2021-01-05 | 2021-05-28 | 南京崇枫日用品有限公司 | Vertical mill equipment for cement processing |
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