CN209697054U - A kind of medium-speed pulverizer - Google Patents
A kind of medium-speed pulverizer Download PDFInfo
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- CN209697054U CN209697054U CN201920073023.3U CN201920073023U CN209697054U CN 209697054 U CN209697054 U CN 209697054U CN 201920073023 U CN201920073023 U CN 201920073023U CN 209697054 U CN209697054 U CN 209697054U
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- middle casing
- coal
- aerofoil profile
- medium
- vane
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Abstract
The utility model discloses a kind of medium-speed pulverizers, including upper body, middle casing, lower case and driving mechanism, the lower end of the upper body is connect by bolt with the middle casing, the lower end of the middle casing is connect by bolt with the lower case, and the lower case and driving mechanism pass through foundation bolt and be fixedly installed in ground base；It is fixedly connected with conical baffle in the upper body and its cone mouth is arranged downward and is passed through in middle casing, the material blanking tube of face cone mouth is vertically arranged in the conical baffle, the upper end of the upper body is provided with pulverized coal distributor on the outside of material blanking tube.The utility model can carry out secondary separation to coal dust until obtaining qualified coal dust; grinding roller and raw coal contact area increase simultaneously; power output of milling improves; coal adaptability is stronger; and the dynamic vane of aerofoil profile, which can eliminate turbulent flow phenomenon, to be made to carry power output raising; the discharge amount for reducing pebble coal is conducive to protect environment.
Description
Technical field
The utility model relates to coal pulverizer fields, and in particular to a kind of medium-speed pulverizer.
Background technique
More competitive coal pulverizer has MPS coal pulverizer, II type of MPS-HP- to medium-speed pulverizer in the market both at home and abroad at present
Coal pulverizer, ZGM coal pulverizer, HP coal pulverizer.MPS, MPS-HP- II and its feature of tri- kinds of ZGM coal pulverizer are similar, and advantage is effect of milling
Rate is high, and stone coal discharge amount is low, but coal adaptability is poor, and ventilation resistance is big, and electrical energy consumption of ventilation is high, makes since structure is complicated
Time between overhauls(TBO) is long, and maintenance difficulty is big；The advantages of HP coal pulverizer, is that coal adaptability is strong, structure is simple, operational reliability is high, inspection
Repair conveniently, downtime it is short, disadvantage is that grinding efficiency is not high, and boiler efficiency cannot be not fully exerted, in addition pebble coal arrange
It is high-volume big, certain difficulty is brought to clearing up and handling pebble coal.Therefore above-mentioned four kinds of coal pulverizers have certain room for improvement, but
There are no the new mill types for having both above-mentioned advantage and abandoning its disadvantage to occur in the market.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of medium-speed pulverizer, energy
The coal pulverizers advantage such as MPS is enough absorbed, while improving coal pulverizer and milling power output, stone coal discharge amount is reduced, it is made to have more coal
Adaptability is more able to satisfy the market demand.
In order to achieve the above objects and other related objects, the utility model provides a kind of medium-speed pulverizer, including upper case
The lower end of body, middle casing, lower case and driving mechanism, the upper body is connect by bolt with the middle casing,
The lower end of the middle casing is connect by bolt with the lower case, and the lower case and driving mechanism pass through lower margin
Bolt is fixedly installed in ground base；
It is fixedly connected with conical baffle in the upper body and its cone mouth is arranged downward and is passed through in middle casing, institute
The material blanking tube that face cone mouth is vertically arranged in conical baffle is stated, the upper end of the upper body is arranged in the outside of material blanking tube
There is pulverized coal distributor, the two sides of the pulverized coal distributor upper end are respectively connected with pulverized coal channel, and the pulverized coal distributor is led with taper
It is provided between flowing plate and is folded to door；
The intracorporal bottom of middle case is equably tiltedly installed with several grinding rollers, and the abradant surface of the grinding roller is curved surface,
Jet deflector is provided on the outside of the grinding roller, the grinding roller is connected with middle casing by support shaft and can be turned around support shaft
Dynamic, the tail portion of the grinding roller is flexibly connected by empennage with the stay-bolt being arranged on middle casing side wall, the middle case
Loading device is installed, the empennage is connect with the output end of the loading device on the outside of body；
Aerofoil profile is installed in the lower case and moves vane, the driving mechanism connect and drives with the dynamic vane of the aerofoil profile
Aerofoil profile moves vane rotation, and the aerofoil profile is moved and is fixedly installed with mill on the inside of vane upper end, and the mill is opposite with the grinding roller
It answers, the side wall that the aerofoil profile moves vane is connected with cleaning device and the cleaning device can move vane with aerofoil profile and rotate, institute
The side for stating lower case is provided with hot-wind inlet, and the bottom of the lower case is provided with pebble coal outlet.
Preferably, the driving mechanism includes driving motor, Combined coupler and gearbox, and the driving motor passes through
Combined coupler is connect with the gearbox, and the output shaft of the gearbox moves vane with the aerofoil profile and is connected.
Preferably, the gearbox is connected with external lubricating oil station.
Preferably, pneumatic shutter and guard system are installed on the pulverized coal channel, in the exit of the pulverized coal channel
System is monitored with corresponding measuring point is additionally provided at the hot-wind inlet.
Preferably, gas sealing system is provided on the loading device.
Preferably, the outer sheath below the material blanking tube is equipped with wind speed impact-absorbing shell.
Preferably, the outside of the conical baffle is connected by support rod with middle casing.
Compared with prior art, the utility model has the beneficial effects that aerofoil profile moves vane and mill in the drive of driving mechanism
Start to rotate under dynamic, be crushed the raw coal in mill by the grinding roller being pivoted, hot wind shape after entrance enters coal pulverizer
It at spiral rotating wind, is hit after being sufficiently mixed with coal dust with jet deflector, realizes the separation of first time coal dust；Coal dust continues on box haul
Mobile, arrival, which is folded to door and is in, is hit, and realizes the coal dust of second of isolated qualification.Grinding roller in the utility model with
The increase of raw coal contact area, power output of milling improves, while coal adaptability is stronger, and the dynamic vane of aerofoil profile can eliminate turbulent flow now
As making to carry power output raising, the discharge amount of pebble coal is reduced, is conducive to protect environment.
Detailed description of the invention
The utility model is described in further detail with specific embodiment with reference to the accompanying drawing.
Fig. 1 is a kind of structural schematic diagram of medium-speed pulverizer provided by the utility model.
Wherein, appended drawing reference is described as follows: 1- material blanking tube, 2- pulverized coal distributor, 3- upper body, 4- conical flow guiding
Plate, 5- middle casing, 6- wind speed impact-absorbing shell, 7- support rod, 8- hot-wind inlet, 9- aerofoil profile move vane, 10- cleaning device, 11- stone
Sub- coal outlet, 12- lubricating oil station, 13- gearbox, 14- Combined coupler, 15- driving motor, 16- lower case, 17-
Jet deflector, 18- support shaft, 19- grinding roller, 20- loading device, 21- gas sealing system, 22- empennage, 23- stay-bolt, 24- are folded to
Door, 25- measuring point monitoring system, 26- pneumatic shutter and guard system, 27- pulverized coal channel.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification easily understands other advantages and effect of the utility model.
It should be clear that this specification structure shown in the drawings, ratio, size etc., only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the utility model enforceable qualifications, therefore not
Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are practical new not influencing this
Under the effect of type can be generated and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain and can contain
In the range of lid.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term,
It is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
As shown in Figure 1, the utility model provides a kind of medium-speed pulverizer, including upper body 3, middle casing 5, lower case
The lower end of body 16 and driving mechanism, upper body 3 is connect by bolt with middle casing 5, and the lower end of middle casing 5 passes through bolt
It is connect with lower case 16, lower case 16 and driving mechanism pass through foundation bolt and be fixedly installed in ground base；
It is fixedly connected with conical baffle 4 in upper body 3 and its cone mouth is arranged downward and is passed through in middle casing 5, bores
The material blanking tube 1 of face cone mouth is vertically arranged in shape deflector 4, the upper end of upper body 3 is provided with coal in the outside of material blanking tube 1
Powder distributor 2, the two sides of 2 upper end of pulverized coal distributor are respectively connected with pulverized coal channel 27, pulverized coal distributor 2 and conical baffle 4 it
Between be provided with and be folded to door 24；
Bottom in middle casing 5 is equably tiltedly installed with several grinding rollers, and the abradant surface of grinding roller is curved surface, makes itself and original
The contact area of coal increases, and jet deflector 17 is provided on the outside of grinding roller, and grinding roller is connected simultaneously by support shaft 18 with middle casing 5
And can be rotated around support shaft 18, the tail portion of grinding roller is lived by empennage 22 with the stay-bolt 23 being arranged on 5 side wall of middle casing
Dynamic connection, the outside of middle casing 5 are equipped with loading device 20, and empennage 22 is connect with the output end of loading device 20, works as grinding roller
When being pivoted, empennage 22 makees the movement of horizontal direction, while loading device 20 can also undergo extruding --- accumulation of energy --- to discharge
Process；
Aerofoil profile is installed in lower case 16 and moves vane 9, driving mechanism connect with the dynamic vane 9 of aerofoil profile and aerofoil profile is driven to move wind
Ring 9 rotates, and aerofoil profile is moved and is fixedly installed with mill on the inside of 9 upper end of vane, and mill is corresponding with grinding roller, and aerofoil profile moves the side of vane 9
Wall is connected with cleaning device 10 and cleaning device 10 can move vane 9 with aerofoil profile and rotate, and the side of lower case 16 is provided with
Hot-wind inlet 8, the bottom of lower case 16 are provided with pebble coal outlet 11.
Wherein, driving mechanism includes driving motor 15, Combined coupler 14 and gearbox 13, and driving motor 15 passes through group
Box-like shaft coupling 14 is connect with gearbox 13, and the output shaft of gearbox 13 moves vane 9 with aerofoil profile and is connected；Gearbox 13 is also and outside
The lubricating oil station 12 in portion is connected.
Preferably, pneumatic shutter and guard system 26 are installed on pulverized coal channel 27, guarantee that coal dust can be conveyed normally；In coal
Corresponding measuring point monitoring system 25 is additionally provided at the exit of powder pipeline 27 and hot-wind inlet 8, by entrance and exit
Measuring point difference judges equipment running status and adjusts the input of raw coal.
Preferably, it is provided with gas sealing system 21 on loading device 20, so that the air pressure in loading device 20 is higher than coal pulverizer
Interior air pressure, prevents coal dust from revealing.
Preferably, the outer sheath of 1 lower section of material blanking tube is equipped with wind speed impact-absorbing shell 6.
Preferably, the outside of conical baffle 4 is connected by support rod 7 with middle casing 5.
When it is implemented, driving motor 15 drives gearbox 13 to work, aerofoil profile moves vane 9 and mill starts to rotate, raw coal
It is fallen into mill from material blanking tube 1 and coal bed is radially moved and gradually formed under the action of the centrifugal force along mill, by around support
Raw coal is crushed by the grinding roller that axis 18 rotates；Hot wind enters coal pulverizer by 8 horizontal tangential of hot-wind inlet and moves vane 9 by aerofoil profile
Spiral rotating wind is formed, be sufficiently mixed in middle casing 5 with coal dust and is hit with the jet deflector of grinding roller 17, big pellet coal dust loses
It removes momentum and falls into continue to mill in mill, be at this time the separation of first time coal dust；Continued with the wind by the coal dust of first time separation
It moves up, is hit again when reaching being folded at door 24 in upper body 3, same bulky grain coal charge loses momentum and passes through cone
Shape deflector 4, which falls into mill, to be continued to mill, and is separated at this time for second, and the coal dust by second of separation is qualified coal dust, is led to
It is defeated up to boiler combustion to cross pulverized coal channel 27；The impurity milled such as stone, iron block or machine components are not easy in coal by cleaning device 10
It is excreted by pebble coal outlet 11；Lubricating oil station 12 continuously feeds 13 lubricating oil of gearbox, while also gearbox
13 heats generated are taken away.
To sum up, the utility model can carry out secondary separation to coal dust until obtaining qualified coal dust, while grinding roller and original
Coal contact area increases, and power output of milling improves, and coal adaptability is stronger, and the dynamic vane of aerofoil profile can eliminate turbulent flow phenomenon and make to take
Band power output improves, and reduces the discharge amount of pebble coal, is conducive to protect environment.So the utility model effectively overcomes existing skill
Various shortcoming in art and there is high industrial utilization value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (7)
1. a kind of medium-speed pulverizer, which is characterized in that described including upper body, middle casing, lower case and driving mechanism
The lower end of upper body is connect by bolt with the middle casing, and the lower end of the middle casing passes through bolt and the lower part
Shell connection, the lower case and driving mechanism pass through foundation bolt and are fixedly installed in ground base；
It is fixedly connected with conical baffle in the upper body and its cone mouth is arranged downward and is passed through in middle casing, the cone
The material blanking tube of face cone mouth is vertically arranged in shape deflector, the upper end of the upper body is provided with coal on the outside of material blanking tube
Powder distributor, the two sides of the pulverized coal distributor upper end are respectively connected with pulverized coal channel, the pulverized coal distributor and conical baffle
Between be provided with and be folded to door；
The intracorporal bottom of middle case is equably tiltedly installed with several grinding rollers, and the abradant surface of the grinding roller is curved surface, described
Jet deflector is provided on the outside of grinding roller, the grinding roller is connected with middle casing by support shaft and can be rotated around support shaft,
The tail portion of the grinding roller is flexibly connected by empennage with the stay-bolt being arranged on middle casing side wall, the middle casing
Outside is equipped with loading device, and the empennage is connect with the output end of the loading device；
Aerofoil profile is installed in the lower case and moves vane, the driving mechanism connect with the dynamic vane of the aerofoil profile and drives aerofoil profile
Dynamic vane rotation, the aerofoil profile are moved and are fixedly installed with mill on the inside of vane upper end, and the mill is corresponding with the grinding roller, institute
The side wall for stating the dynamic vane of aerofoil profile is connected with cleaning device and the cleaning device can move vane with aerofoil profile and rotate, the lower part
The side of shell is provided with hot-wind inlet, and the bottom of the lower case is provided with pebble coal outlet.
2. a kind of medium-speed pulverizer according to claim 1, it is characterised in that: the driving mechanism include driving motor,
Combined coupler and gearbox, the driving motor are connect by Combined coupler with the gearbox, the gearbox
Output shaft and the aerofoil profile move vane and be connected.
3. a kind of medium-speed pulverizer according to claim 2, it is characterised in that: the gearbox and external lubricating oil station
It is connected.
4. a kind of medium-speed pulverizer according to claim 1, it is characterised in that: be equipped on the pulverized coal channel pneumatic fast
Door and guard system are additionally provided with corresponding measuring point monitoring system at the exit of the pulverized coal channel and the hot-wind inlet
System.
5. a kind of medium-speed pulverizer according to claim 1, it is characterised in that: be provided with sealing gland system on the loading device
System.
6. a kind of medium-speed pulverizer according to claim 1, it is characterised in that: the outer sheath below the material blanking tube is equipped with
Wind speed impact-absorbing shell.
7. a kind of medium-speed pulverizer according to claim 1, it is characterised in that: pass through branch on the outside of the conical baffle
Strut is connected with middle casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920073023.3U CN209697054U (en) | 2019-01-16 | 2019-01-16 | A kind of medium-speed pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920073023.3U CN209697054U (en) | 2019-01-16 | 2019-01-16 | A kind of medium-speed pulverizer |
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| CN209697054U true CN209697054U (en) | 2019-11-29 |
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| CN201920073023.3U Active CN209697054U (en) | 2019-01-16 | 2019-01-16 | A kind of medium-speed pulverizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437931A (en) * | 2019-01-16 | 2020-07-24 | 上海戎川机电工程设备有限公司 | Medium speed coal mill |
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2019
- 2019-01-16 CN CN201920073023.3U patent/CN209697054U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437931A (en) * | 2019-01-16 | 2020-07-24 | 上海戎川机电工程设备有限公司 | Medium speed coal mill |
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