CN108405154A - Dedicated mechanical powder crushing device on a kind of coal - Google Patents

Dedicated mechanical powder crushing device on a kind of coal Download PDF

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Publication number
CN108405154A
CN108405154A CN201810248681.1A CN201810248681A CN108405154A CN 108405154 A CN108405154 A CN 108405154A CN 201810248681 A CN201810248681 A CN 201810248681A CN 108405154 A CN108405154 A CN 108405154A
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CN
China
Prior art keywords
level
crushing
motor
shaft
pulverizing chamber
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810248681.1A
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Chinese (zh)
Inventor
王笑梅
Original Assignee
王笑梅
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 王笑梅 filed Critical 王笑梅
Priority to CN201810248681.1A priority Critical patent/CN108405154A/en
Priority to CN201610618744.9A priority patent/CN106179680B/en
Publication of CN108405154A publication Critical patent/CN108405154A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00Disintegrating plant with or without drying of the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/08Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
    • B02C18/12Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged below container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/145Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00Other disintegrating devices or methods
    • B02C19/0012Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
    • B02C19/005Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain) the materials to be pulverised being disintegrated by collision of, or friction between, the material particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02Feeding devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/20Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/02Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/08Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/10Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
    • B02C4/26Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a grid or grating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details
    • B02C4/30Shape or construction of rollers

Abstract

The invention discloses dedicated mechanical powder crushing devices on a kind of coal,Feeding belt is driven by motor,Coal is sent into level-one pulverizing chamber,Pass through crushing shaft successively in level-one pulverizing chamber,The crushing successively of broken ratchet and crushing teeth,By the way that multiple tracks disintegrating process is arranged,Coal is reached and is thoroughly crushed,And connect copper ball with chain,Improve collision effect,Fixed crushing teeth is set also on the bottom surface of level-one pulverizing chamber,Further increase crushing effect,Entered in two level pulverizing chamber by first passage,Pass through the first rotary head in two level pulverizing chamber,The crushing of fixed blade and the second rotary head,Reach the uniform effect of particle size after cracking,Finally enter ash disposal screening room,Wind turbine is screened in room to ash disposal and is blown,Granular coal is retained,By the transport for transporting axis,Finally it is detached from from discharge port,And the coal ash generated in crushing process,It is blown out from cement output tank,It results in blockage to equipment after preventing coal ash from accumulating over a long period,Reduce the service life of equipment.

Description

Dedicated mechanical powder crushing device on a kind of coal
The application is entitled:Dedicated mechanical powder crushing device on a kind of coal, application No. is: 201610618744.9, the applying date be:The divisional application of application for a patent for invention on 07 31st, 2016.
Technical field
The present invention relates to colliery engineering field, more particularly to dedicated mechanical powder crushing device on a kind of coal.
Background technology
Currently, it is that essential cargo handling operation in progress of coal mining, raw coal or bituminous coal could quilts by being crushed to crush It conveys into next link and is processed and handles, the effect that coal crushes directly depends on the height of grinding device performance, existing There is the pulverizer of technology, generally existing energy consumption is big, and crushing efficiency is low, and the non-uniform disadvantage of particle size after cracking, operation effectiveness is difficult to Reach perfect condition.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides dedicated mechanical crushing dress on a kind of coal It sets, simple in structure, implementation is easy, and when being crushed for coal, low energy consumption, crushing efficiency is high, and particle size after cracking is uniform.
To solve the above-mentioned problems, the present invention provides a kind of technical solutions:Dedicated mechanical crushing on a kind of coal Device, including it is feeding belt, transmission motor, stock chest, level-one pulverizing chamber, crushing shaft, first motor, left broken roll, right broken Roll, broken ratchet, chain, copper ball, first rotating shaft, crushing teeth, fixed crushing teeth, governor, the second motor, first passage, Valve plate, two level pulverizing chamber, the second shaft, third motor, the first rotary head, fixed blade, the second rotary head and second are logical Road;The outer surface of the feeding belt is equipped with several stock chests;The feeding belt is located at the oblique upper of level-one pulverizing chamber;The biography The output shaft of power transmission machine and the input shaft of feeding belt are linked together by belt;The level-one crushes the upper end of chamber chamber interior There are one crushing shaft, the crushing shaft is parallel with horizontal plane for flexible connection;The first motor is fixedly connected on level-one crushing On the outer surface of room, the output shaft of the first motor is together with crushing shaft axis connection;The level-one crushes chamber chamber interior There are one left broken rolls for left side flexible connection;The right side flexible connection that the level-one crushes chamber chamber interior is crushed there are one right Roll;There are one broken ratchet, the broken ratchet phases for cladding on the outer surface of the left broken roll and right broken roll Mutually mesh together;
Chain there are one being fixedly connected on the left and right two chambers wall of the level-one crushing chamber chamber interior;
The other end of the chain is fixedly connected with there are one copper ball;The level-one crushes the lower end flexible connection of chamber chamber interior There are one first rotating shaft, the first rotating shaft is parallel with horizontal plane;Global formation has number on the outer surface of the first rotating shaft A crushing teeth;The level-one, which crushes global formation on the bottom surface of chamber chamber interior, several fixed crushing teeths;The governor is solid Surely it is connected on the outer surface of level-one pulverizing chamber, the output shaft of the governor is together with first rotating shaft axis connection;Described The output shaft of two motors is together with the input shaft axis connection of governor;The bottom end of the level-one pulverizing chamber by first passage with The top of two level pulverizing chamber is connected;Valve plate there are one being set in the first passage;It is movable in the chamber of the two level pulverizing chamber There are one the second shafts for connection, and second shaft and horizontal plane are perpendicular;It is fixedly connected on the bottom surface of the two level pulverizing chamber There are one third motors, and the output shaft of the third motor is together with the second shaft axis connection;The top of second shaft Second rotary head there are one being fixedly connected, second shaft and the second rotary head are mutually concentric;Second rotary head Lower end set there are one the first rotary head, first rotary head is fixedly connected in the second shaft, second shaft It is mutually concentric with the first rotary head;The both ends of first rotary head upper surface are fixedly connected with there are one fixed blade;Institute State two level crush outdoor face lower end also be connected to there are one second channel.
Preferably, further including ash disposal screening room, transport axis, transport motor, wind turbine, air hose, cement output tank and discharge port;Institute It states and is connected with second channel above the left end of ash disposal screening room;There are one fortune for flexible connection in the chamber of ash disposal screening room Defeated axis;The left end of ash disposal screening outdoor face is fixedly connected there are one transporting motor, the output shaft of the transport motor with Transport axis axis connection together;By air hose connection, there are one wind turbines below the left end of ash disposal screening room;The ash disposal sieve Select cement output tank there are one being connected to above the right end of room;There are one discharge ports for connection below the right end of ash disposal screening room.
Preferably, the first motor, the second motor and third motor are variable-frequency motor or servo motor.
Preferably, the governor is stepless speed regulating machine.
Preferably, the discharge port is in bell mouth shape.
Beneficial effects of the present invention:It is the configuration of the present invention is simple, easy to use, feeding belt is driven by motor, coal is sent Enter in level-one pulverizing chamber, passes through the crushing successively of crushing shaft, broken ratchet and crushing teeth successively in level-one pulverizing chamber, by setting Multiple tracks disintegrating process is set, coal is reached and is thoroughly crushed, and copper ball is connected with chain, collision effect is improved, also in first level flour Fixed crushing teeth is set on the bottom surface of broken room, further increases crushing effect, is entered in two level pulverizing chamber by first passage, By the first rotary head, the crushing of fixed blade and the second rotary head in two level pulverizing chamber, it is uniform to reach particle size after cracking Effect finally enters ash disposal screening room, and wind turbine is screened in room to ash disposal and blown, and granular coal is retained, by transporting axis Transport, the coal ash for being finally detached from from discharge port, and being generated in crushing process is blown out from cement output tank, prevents coal grey day It results in blockage to equipment after the product moon is tired, reduces the service life of equipment.
Description of the drawings
The present invention is described in detail by following specific implementations and attached drawing for ease of explanation,.
Fig. 1 is the structural diagram of the present invention.
1- feeding belts;2- transmits motor;3- stock chests;4- level-one pulverizing chambers;5- crushing shafts;6- first motors;The left sides 7- are broken Broken roll;The right sides 8- are crushed roll;9- is crushed ratchet;10- chains;11- copper balls;12- first rotating shafts;13- crushing teeths;14- is fixed Crushing teeth;15- governors;The second motors of 16-;17- first passages;18- valve plates;19- two level pulverizing chambers;The second shafts of 20-; 21- third motors;The first rotary heads of 22-;23- fixed blades;The second rotary heads of 24-;25- second channels;26- ash disposal is sieved Select room;27- transports axis;28- transports motor;29- wind turbines;30- air hoses;31- cement output tanks;32- discharge ports.
Specific implementation mode
As shown in Figure 1, present embodiment uses following technical scheme:Dedicated mechanical crushing dress on a kind of coal It sets, including feeding belt 1, transmission motor 2, stock chest 3, level-one pulverizing chamber 4, crushing shaft 5, first motor 6, left broken roll 7, the right side Broken roll 8, broken ratchet 9, chain 10, copper ball 11, first rotating shaft 12, crushing teeth 13, fixed crushing teeth 14, governor 15, Second motor 16, first passage 17, valve plate 18, two level pulverizing chamber 19, the second shaft 20, third motor 21, the first rotary head 22, fixed blade 23, the second rotary head 24 and second channel 25;The outer surface of the feeding belt 1 is equipped with several stock chests 3;The feeding belt 1 is located at the oblique upper of level-one pulverizing chamber 4;The input shaft of the output shaft and feeding belt 1 of the transmission motor 2 is logical Belt is crossed to link together;There are one crushing shaft 5, the crushing for the upper end flexible connection of 4 chamber interior of level-one pulverizing chamber Axis 5 is parallel with horizontal plane;The first motor 6 is fixedly connected on the outer surface of level-one pulverizing chamber 4, the first motor 6 Output shaft together with 5 axis connection of crushing shaft;There are one left broken for the left side flexible connection of 4 chamber interior of level-one pulverizing chamber Roll 7;There are one right broken rolls 8 for the right side flexible connection of 4 chamber interior of level-one pulverizing chamber;The left broken roll 7 It is coated with right be crushed on the outer surface of roll 8 there are one ratchet 9 is crushed, the intermeshing of broken ratchet 9 is together;It is described Chain 10 there are one being fixedly connected on the left and right two chambers wall of 4 chamber interior of level-one pulverizing chamber;The chain 10 it is another Hold copper ball 11 there are one being fixedly connected with;There are one first rotating shafts for the lower end flexible connection of 4 chamber interior of level-one pulverizing chamber 12, the first rotating shaft 12 is parallel with horizontal plane;Global formation has several crushing teeths on the outer surface of the first rotating shaft 12 13;Global formation has several fixed crushing teeths 14 on the bottom surface of 4 chamber interior of level-one pulverizing chamber;The governor 15 is fixed It is connected on the outer surface of level-one pulverizing chamber 4, the output shaft of the governor 15 is together with 12 axis connection of first rotating shaft;It is described The output shaft of second motor 16 is together with the input shaft axis connection of governor 15;The bottom end of the level-one pulverizing chamber 4 passes through One channel 17 is connected with the top of two level pulverizing chamber 19;Valve plate 18 there are one being set in the first passage 17;The second patent flour There are one the second shafts 20 for flexible connection in the chamber of broken room 19, and second shaft 20 and horizontal plane are perpendicular;The two level Third motor 21 there are one being fixedly connected on the bottom surface of pulverizing chamber 19,20 axis of output shaft and the second shaft of the third motor 21 It links together;The top of second shaft 20 is fixedly connected there are one the second rotary head 24, second shaft 20 with Second rotary head 24 is mutually concentric;The lower end of second rotary head 24 is set there are one the first rotary head 22, and described first Rotary head 22 is fixedly connected in the second shaft 20, and second shaft 20 and the first rotary head 22 are mutually concentric;Described The both ends of one rotary head, 22 upper surface are fixedly connected with there are one fixed blade 23;Under 19 outer surface of two level pulverizing chamber There are one second channels 25 for end also connection.
Further, further include ash disposal screening room 26, transport axis 27, transport motor 28, wind turbine 29, air hose 30, cement output tank 31 Discharge port 32;It is connected with second channel 25 above the left end of ash disposal screening room 26;The chamber of ash disposal screening room 26 There are one transport axis 27 for middle flexible connection;The left end of the ash disposal screening 26 outer surface of room transports motor there are one being fixedly connected 28, the output shaft of the transport motor 28 is together with transport 27 axis connection of axis;It is logical below the left end of ash disposal screening room 26 Crossing the connection of air hose 30, there are one wind turbines 29;There are one cement output tanks 31 for connection above the right end of ash disposal screening room 26;It is described to remove There are one discharge ports 32 for connection below the right end of ash screening room 26.
Wherein, the first motor 6, the second motor 16 and third motor 21 are variable-frequency motor or servo motor;The tune Fast machine 15 is stepless speed regulating machine;The discharge port 32 is in bell mouth shape.
The present invention use state be:It is the configuration of the present invention is simple, easy to use, feeding belt 1 is driven by motor, by coal It is sent into level-one pulverizing chamber 4, passes through the powder successively of crushing shaft 5, broken ratchet 9 and crushing teeth 13 successively in level-one pulverizing chamber 4 It is broken, by the way that multiple tracks disintegrating process is arranged, coal is reached and is thoroughly crushed, and copper ball 11 is connected with chain 10, improves collision effect Fixed crushing teeth 14 is arranged also on the bottom surface of level-one pulverizing chamber 4, further increases crushing effect, passes through first passage 17 for fruit Into in two level pulverizing chamber 19, pass through the first rotary head 22, fixed blade 23 and the second rotating knife in two level pulverizing chamber 19 The crushing of disk 24 reaches the uniform effect of particle size after cracking, finally enters ash disposal screening room 26, and wind turbine 29 is screened to ash disposal in room 26 Air-supply, granular coal are retained, and by transporting the transport of axis 27, are finally detached from from discharge port 32, and are produced in crushing process Raw coal ash, is blown out from cement output tank 31, results in blockage to equipment after preventing coal ash from accumulating over a long period, reduce the longevity of equipment Life.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, the technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (3)

1. dedicated mechanical powder crushing device on a kind of coal, it is characterised in that:Including feeding belt(1), transmission motor(2), storage Hopper(3), level-one pulverizing chamber(4), crushing shaft(5), first motor(6), left broken roll(7), right broken roll(8), it is broken Ratchet(9), chain(10), copper ball(11), first rotating shaft(12), crushing teeth(13), fixed crushing teeth(14), governor(15)、 Second motor(16), first passage(17), valve plate(18), two level pulverizing chamber(19), the second shaft(20), third motor(21)、 First rotary head(22), fixed blade(23), the second rotary head(24)And second channel(25);
The feeding belt(1)Outer surface be equipped with several stock chests(3);
The feeding belt(1)Positioned at level-one pulverizing chamber(4)Oblique upper;
The transmission motor(2)Output shaft and feeding belt(1)Input shaft linked together by belt;
The level-one pulverizing chamber(4)There are one crushing shafts for the upper end flexible connection of chamber interior(5), the crushing shaft(5)With water Plane parallel;
The first motor(6)It is fixedly connected on level-one pulverizing chamber(4)Outer surface on, the first motor(6)Output shaft With crushing shaft(5)Axis connection is together;
The level-one pulverizing chamber(4)There are one left broken rolls for the left side flexible connection of chamber interior(7);
The level-one pulverizing chamber(4)There are one right broken rolls for the right side flexible connection of chamber interior(8);
The left broken roll(7)With the broken roll in the right side(8)Outer surface on there are one broken ratchets for cladding(9), described broken Broken ratchet(9)Intermeshing is together;
The level-one pulverizing chamber(4)Chain there are one being fixedly connected on the left and right two chambers wall of chamber interior(10);
The chain(10)The other end be fixedly connected with there are one copper ball(11);
The level-one pulverizing chamber(4)There are one first rotating shafts for the lower end flexible connection of chamber interior(12), the first rotating shaft (12)It is parallel with horizontal plane;
The first rotating shaft(12)Outer surface on global formation have several crushing teeths(13);
The level-one pulverizing chamber(4)Global formation has several fixed crushing teeths on the bottom surface of chamber interior(14);
The governor(15)It is fixedly connected on level-one pulverizing chamber(4)Outer surface on, the governor(15)Output shaft with First rotating shaft(12)Axis connection is together;
Second motor(16)Output shaft and governor(15)Input shaft axis connection together;
The level-one pulverizing chamber(4)Bottom end pass through first passage(17)With two level pulverizing chamber(19)Top be connected;
The first passage(17)In set there are one valve plate(18);
The two level pulverizing chamber(19)Chamber in flexible connection there are one the second shaft(20), second shaft(20)With water Plane is perpendicular;
The two level pulverizing chamber(19)Bottom surface on be fixedly connected there are one third motor(21), the third motor(21)It is defeated Shaft and the second shaft(20)Axis connection is together;
Second shaft(20)Top be fixedly connected there are one the second rotary head(24), second shaft(20)With Two rotary heads(24)Mutually with one heart;
Second rotary head(24)Lower end set there are one the first rotary head(22), first rotary head(22)Gu Surely it is connected to the second shaft(20)On, second shaft(20)With the first rotary head(22)Mutually with one heart;
First rotary head(22)The both ends of upper surface are fixedly connected with there are one fixed blade(23);
The two level pulverizing chamber(19)The lower end of outer surface is also connected to there are one second channel(25);
Dedicated mechanical powder crushing device on the coal further includes ash disposal screening room(26), transport axis(27), transport motor (28), wind turbine(29), air hose(30), cement output tank(31)And discharge port(32);
Room is screened in the ash disposal(26)Left end above and second channel(25)It is connected;
Room is screened in the ash disposal(26)Chamber in flexible connection there are one transport axis(27);
Room is screened in the ash disposal(26)The left end of outer surface transports motor there are one being fixedly connected(28), the transport motor(28) Output shaft with transport axis(27)Axis connection is together;
Room is screened in the ash disposal(26)Left end below pass through air hose(30)There are one wind turbines for connection(29);
Room is screened in the ash disposal(26)Right end above connection there are one cement output tank(31);
Room is screened in the ash disposal(26)Right end below connection there are one discharge port(32);
The first motor(6), the second motor(16)With third motor(21)For variable-frequency motor or servo motor.
2. dedicated mechanical powder crushing device on a kind of coal according to claim 1, it is characterised in that:The governor (15)For stepless speed regulating machine.
3. dedicated mechanical powder crushing device on a kind of coal according to claim 1, it is characterised in that:The discharge port (32)In bell mouth shape.
CN201810248681.1A 2016-07-31 2016-07-31 Dedicated mechanical powder crushing device on a kind of coal Pending CN108405154A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201810248681.1A CN108405154A (en) 2016-07-31 2016-07-31 Dedicated mechanical powder crushing device on a kind of coal
CN201610618744.9A CN106179680B (en) 2016-07-31 2016-07-31 Dedicated mechanical powder crushing device on a kind of coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810248681.1A CN108405154A (en) 2016-07-31 2016-07-31 Dedicated mechanical powder crushing device on a kind of coal

Related Parent Applications (1)

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CN201610618744.9A Division CN106179680B (en) 2016-07-31 2016-07-31 Dedicated mechanical powder crushing device on a kind of coal

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CN201610618744.9A Active CN106179680B (en) 2016-07-31 2016-07-31 Dedicated mechanical powder crushing device on a kind of coal
CN201810248680.7A Pending CN108421622A (en) 2016-07-31 2016-07-31 A kind of mechanical powder crushing device on coal

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CN109201169B (en) * 2018-07-27 2021-01-26 华北水利水电大学 Energy-concerving and environment-protective civil engineering construction waste material processing apparatus
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