CN205032229U - Boiler coal mill - Google Patents
Boiler coal mill Download PDFInfo
- Publication number
- CN205032229U CN205032229U CN201520620930.7U CN201520620930U CN205032229U CN 205032229 U CN205032229 U CN 205032229U CN 201520620930 U CN201520620930 U CN 201520620930U CN 205032229 U CN205032229 U CN 205032229U
- Authority
- CN
- China
- Prior art keywords
- mill
- coal
- distributor
- controller
- coal mill
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a boiler coal mill, including distributor, dynamic separator, last support body, lower support body and base, distributor, dynamic separator, go up the support body, support body and base be in proper order from last to setting up down, be provided with driving motor on the distributor, the distributor is connected with the driving motor transmission, be provided with rotating vane and stator blade in the developments separator, developments separator below is provided with the returning charge coal scuttle, returning charge coal scuttle below is provided with loading frame and pull rod, the pull rod is established in loading frame one side, loading frame passes through pull rod and base fixed connection, swing adjusting device inboard is provided with the grinding roller, the grinding roller is equipped with two, support body one side is provided with the motor down, the internal speed reducer that is provided with of undercarriage, this boiler coal mill compact structure, the operation is stable, and the availability factor is high, convenient operation, the dust of can discharging during the grinding reduces to pollute, can adjust the diameter that grinds the buggy.
Description
Technical field
The utility model relates to a kind of boiler accessory machinery technical field, particularly relates to a kind of controller of coal mill of boiler.
Background technology
Coal pulverizer is by coal crusher and wears into the machinery of coal dust, and it is the important auxiliary equipment of coal-powder boiler.There are the models such as vertical pulverizer, high-pressure overhang roll mill, middling speed micropowder grinding, super-pressure trapezoidal mill, Raymond mill.Coal-grinding process is that coal is broken and the ever-increasing process of surface area.Increase new surface area, the adhesion between molecular solids must be overcome, thus need consumed energy.Coal is ground into coal dust in coal pulverizer, mainly by crushing, smashing and grind three kinds of modes and carry out.The energy wherein crushing process consumption is economized most.Grinding process takes energy most.Various coal pulverizer all has two or three above-mentioned mode concurrently in pulverizing process, but which kind of is main then depending on the type of coal pulverizer with.
Low-speed coal mill is mainly drum-type low speed coal mill, general abbreviation Ball Mill or ball mill.It is cylindrical or two ends of rotating is the cylinder of taper, and cylinder is built with steel ball.The rotating speed of cylinder is 15 ~ 25 revs/min.Steel ball during work in cylinder constantly clashes into and extrudes coal cinder, and coal cinder is ground into coal dust.Then by the hot blast passed in cylinder by coal dry and coal dust is sent, through separator be separated after, the coal dust of certain particle size is admitted to Pulverized Coal Bin or directly sends into coal burner.Ball Mill bulky, power consumption are high, noise is large; But to the wide accommodation of coal, reliable, be particularly suitable for grinding hard anthracite.
Medium-speed pulverizer rotating speed is 50 ~ 300 revs/min, and kind is more.Common are square position mill, bowl shaped mill, E type mill and roller mill.Their common feature is that parts of milling are made up of the milling body of two groups of relative motions.Coal cinder is squeezed, mills and is pulverized between these two groups of milling body surfaces.Meanwhile, coal is dried by the hot blast passing into coal pulverizer, and is delivered to by coal dust and mill in the separator on top, district.After being separated, the coal dust of certain particle size is taken out of outside mill with air-flow, refaces in the coarse grained coal dust backspace district that mills.Medium-speed pulverizer has facility compact, it is little to take up an area, power consumption economize (being about 50 ~ 75% of low speed coal mill), noise little, run and control the lighter remarkable advantage such as sensitive; But structure is more complicated with manufacture, maintenance cost is comparatively large, and is not suitable for grinding harder coal.In considerable coal-fired boiler, bowl formula medium-speed pulverizer is used more.
High speed coal mill rotating speed is 500 ~ 1500 revs/min, primarily of high speed rotor and mill shell composition.Common are fan mill and hammer swing sledge mill etc.The high speed impact that coal cinder is subject to high speed rotor in fan mill collide with mill shell, and shock and being grated mutually between coal cinder.This coal pulverizer and coal dust classifier form a whole, and structure is simple, compact, and initial cost is economized, and are specially adapted to grind high water content brown coal and volatile matter is high, the bituminous coal that easily grinds.Fan mill is large owing to wearing and tearing, and continuous operating time is all short compared with other coal pulverizers, is unsuitable for grinding hard coal.
Coal pulverizer is after material is broken, then carries out the key equipment pulverized.Coal pulverizer is widely used in cement, silicate product, New Building Materials, refractory material, chemical fertilizer, black and the production industry such as non-ferrous metal ore and glass ceramics, carries out dry type or wet type grinding to various ore and other grindability material.Ball mill is Horizontal cylindrical whirligig, outer gear drive, two storehouses, grate ball mill.Material enters grinding machine first storehouse by feed arrangement equably through pan feeding quill shaft spiral, ladder lining board or corrugated liner is had in this storehouse, in-built different size steel ball, barrel body rotation produces after centrifugal force takes steel ball to certain altitude and falls, and produces bang and abrasive action to material.Material, after the first storehouse reaches corase grind, enters the second storehouse through single layer partition panel, studs with flat liner plate, inside has steel ball, ground further by material in this storehouse.Powder is discharged by discharging grate plate, completes grinding operation.Roller mill motor is rotated by reductor band movable grinding disc, and material drops on mill central authorities through lock feeding device from charging aperture, and hot blast enters in mill from air inlet simultaneously.Along with the rotation of mill, material under the influence of centrifugal force, move to mill edge, cannelure on mill is subject to rolling of grinding roller and pulverizes, material after pulverizing is taken up by vane high velocity air at mill edge, bulky grain directly to fall on mill grinding again, material in air-flow is through Upper separator, under the effect of rotor, meal falls mill grinding again from cone bucket, qualified fine powder trips out mill with air-flow one, collected by dust arrester installation, be product, material containing moisture with the contact process of thermal current in dried, by regulating hot blast temperature, different humidity material requirement can be met, reach required product moisture.By adjustment separator, the fineness degree needed for different product can be reached.Current existing coal pulverizer complex structure, operation stability is not high, easily produces dust.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of compact conformation, stable, and service efficiency is high, easy to operate, can discharge dust during grinding, reduces to pollute, and can regulate the controller of coal mill of boiler of the diameter of grinding powder coal.
For solving the problem, the utility model adopts following technical scheme:
A kind of controller of coal mill of boiler, comprise distributor, dynamic separator, upper frame, lower frame and base, described distributor, dynamic separator, upper frame, lower frame and base are arranged successively from top to bottom, described distributor is provided with drive motors, described distributor and drive motors are in transmission connection, rotating vane and stator blade is provided with in described dynamic separator, returning charge coal bunker is provided with below described dynamic separator, loading frame and pull bar is provided with below described returning charge coal bunker, described pull bar is located at loading frame side, described loading frame is fixedly connected with base by pull bar, described loading frame is provided with swing adjusting device, grinding roller is provided with inside described swing adjusting device, described grinding roller is provided with three, described lower frame side is provided with motor, reductor is provided with in described lower frame, described motor is connected with speed reducer drive, described reductor is provided with mill, described mill arranged outside has millstone sheet, described mill is connected with speed reducer drive, described mill is fixedly connected with millstone sheet, sealing ring is provided with bottom described upper frame, described upper frame side is provided with air intake vent.
As preferably, described grinding roller is that inclination angle is arranged, and increases milling area, promotes the grinding efficiency of coal cinder.
As preferably, described dynamic separator side is provided with sealing wind path pipe, facilitates the circulation of air, discharges dust.
As preferably, described pull bar is hydraulic pressure draw-bar, the position of adjustment loading frame that can be stable.
As preferably, described reductor is planet-gear speed reducer, keeps stable, reliable transmission.
As preferably, described motor and speed reducer is fixedly connected with base respectively, and holding structure is stablized.
As preferably, described grinding roller rolls with millstone sheet and is connected, and grinding effect can be kept good.
As preferably, described millstone sheet arranged outside has rotary spray nozzle ring, can spray into liquid, reduces the generation of dust.
The beneficial effects of the utility model are: the distributor of setting can keep coal cinder raw material to pass into uniformly, dynamic separator can carry out precrushing to coal cinder, rotating vane carries out fragmentation to coal cinder, grinding roller and millstone sheet can grind coal cinder, ground coal dust can be discharged by returning charge coal bunker, air intake vent can enter air and take away dust and discharge from sealing wind path pipe, reduce to pollute, motor can keep mill to continue to rotate, reductor can regulate the rotating speed of mill, keep stable, service efficiency is high, easy to operate, pull bar can regulate the position of loading frame, thus regulate the gap of grinding roller and millstone sheet, the object regulating grinding powder coal diameter can be reached.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of controller of coal mill of boiler of the present utility model.
Detailed description of the invention
Consult shown in Fig. 1, a kind of controller of coal mill of boiler, comprise distributor 1, dynamic separator 2, upper frame 3, lower frame 4 and base 5, described distributor 1, dynamic separator 2, upper frame 3, lower frame 4 and base 5 are arranged successively from top to bottom, described distributor 1 is provided with drive motors 6, described distributor 1 is in transmission connection with drive motors 6, rotating vane 7 and stator blade 8 is provided with in described dynamic separator 2, returning charge coal bunker 9 is provided with below described dynamic separator 2, loading frame 10 and pull bar 11 is provided with below described returning charge coal bunker 9, described pull bar 11 is located at loading frame 10 side, described loading frame 10 is fixedly connected with base 5 by pull bar 11, described loading frame 10 is provided with and swings adjusting device 12, grinding roller 13 is provided with inside described swing adjusting device 12, described grinding roller 13 is provided with three, described lower frame 4 side is provided with motor 14, reductor 15 is provided with in described lower frame 4, described motor 14 is in transmission connection with reductor 15, described reductor 15 is provided with mill 16, described mill 16 arranged outside has millstone sheet 17, described mill 16 is in transmission connection with reductor 15, described mill 16 is fixedly connected with millstone sheet 17, sealing ring 18 is provided with bottom described upper frame 3, described upper frame 3 side is provided with air intake vent 19.
Described grinding roller 13 is arranged in inclination angle.
Described dynamic separator 2 side is provided with sealing wind path pipe 20.
Described pull bar 11 is hydraulic pressure draw-bar.
Described reductor 15 is planet-gear speed reducer.
Described motor 14 is fixedly connected with base 5 respectively with reductor 15.
Described grinding roller 13 rolls with millstone sheet 17 and is connected.
Described millstone sheet 17 arranged outside has rotary spray nozzle ring 21.
The beneficial effects of the utility model are: the distributor of setting can keep coal cinder raw material to pass into uniformly, dynamic separator can carry out precrushing to coal cinder, rotating vane carries out fragmentation to coal cinder, grinding roller and millstone sheet can grind coal cinder, ground coal dust can be discharged by returning charge coal bunker, air intake vent can enter air and take away dust and discharge from sealing wind path pipe, reduce to pollute, motor can keep mill to continue to rotate, reductor can regulate the rotating speed of mill, keep stable, service efficiency is high, easy to operate, pull bar can regulate the position of loading frame, thus regulate the gap of grinding roller and millstone sheet, the object regulating grinding powder coal diameter can be reached.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection domain of the present utility model; therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.
Claims (8)
1. a controller of coal mill of boiler, it is characterized in that: comprise distributor, dynamic separator, upper frame, lower frame and base, described distributor, dynamic separator, upper frame, lower frame and base are arranged successively from top to bottom, described distributor is provided with drive motors, described distributor and drive motors are in transmission connection, rotating vane and stator blade is provided with in described dynamic separator, returning charge coal bunker is provided with below described dynamic separator, loading frame and pull bar is provided with below described returning charge coal bunker, described pull bar is located at loading frame side, described loading frame is fixedly connected with base by pull bar, described loading frame is provided with swing adjusting device, grinding roller is provided with inside described swing adjusting device, described grinding roller is provided with three, described lower frame side is provided with motor, reductor is provided with in described lower frame, described motor is connected with speed reducer drive, described reductor is provided with mill, described mill arranged outside has millstone sheet, described mill is connected with speed reducer drive, described mill is fixedly connected with millstone sheet, sealing ring is provided with bottom described upper frame, described upper frame side is provided with air intake vent.
2. controller of coal mill of boiler according to claim 1, is characterized in that: described grinding roller is that inclination angle is arranged.
3. controller of coal mill of boiler according to claim 2, is characterized in that: described dynamic separator side is provided with sealing wind path pipe.
4. controller of coal mill of boiler according to claim 3, is characterized in that: described pull bar is hydraulic pressure draw-bar.
5. controller of coal mill of boiler according to claim 4, is characterized in that: described reductor is planet-gear speed reducer.
6. controller of coal mill of boiler according to claim 5, is characterized in that: described motor and speed reducer is fixedly connected with base respectively.
7. controller of coal mill of boiler according to claim 6, is characterized in that: described grinding roller rolls with millstone sheet and is connected.
8. controller of coal mill of boiler according to claim 7, is characterized in that: described millstone sheet arranged outside has rotary spray nozzle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620930.7U CN205032229U (en) | 2015-08-18 | 2015-08-18 | Boiler coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620930.7U CN205032229U (en) | 2015-08-18 | 2015-08-18 | Boiler coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205032229U true CN205032229U (en) | 2016-02-17 |
Family
ID=55291164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520620930.7U Expired - Fee Related CN205032229U (en) | 2015-08-18 | 2015-08-18 | Boiler coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205032229U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998726A (en) * | 2015-08-18 | 2015-10-28 | 芜湖奕辰模具科技有限公司 | Coal mill for boiler |
| CN105833946A (en) * | 2016-04-27 | 2016-08-10 | 江苏方天电力技术有限公司 | Medium-speed coal mill with novel grinding bowl structure |
| CN116140021A (en) * | 2022-11-30 | 2023-05-23 | 济宁华源热电有限公司 | Medium-speed coal mill with ash-reducing and sulfur-removing device |
-
2015
- 2015-08-18 CN CN201520620930.7U patent/CN205032229U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998726A (en) * | 2015-08-18 | 2015-10-28 | 芜湖奕辰模具科技有限公司 | Coal mill for boiler |
| CN105833946A (en) * | 2016-04-27 | 2016-08-10 | 江苏方天电力技术有限公司 | Medium-speed coal mill with novel grinding bowl structure |
| CN116140021A (en) * | 2022-11-30 | 2023-05-23 | 济宁华源热电有限公司 | Medium-speed coal mill with ash-reducing and sulfur-removing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104998726A (en) | Coal mill for boiler | |
| CN205032229U (en) | Boiler coal mill | |
| CN108499669A (en) | Paddle type mill dynamic circulation screening crusher | |
| CN105618203A (en) | Pulverizer | |
| CN105344446A (en) | Roller press pregrinding system adopting light grinding medium | |
| CN102847586A (en) | Air-swept efficient vertical roller mill | |
| CN201042675Y (en) | Form-separating flour milling machine group | |
| CN204564237U (en) | A kind of flour mill | |
| CN202290187U (en) | Grinding table of vertical cement clinker grinder | |
| CN101219408A (en) | Vertical spinning dive pulverizer | |
| JP5791556B2 (en) | Vertical crusher | |
| CN103447119A (en) | Vertical roller mill and grinding method thereof | |
| CN200998683Y (en) | Upright percussive crusher | |
| CN103537344A (en) | Roll mill | |
| CN100540142C (en) | Internal grading ball mill | |
| CN217368613U (en) | Multifunctional roller type vertical mill | |
| CN203091006U (en) | Ball grinding machine | |
| CN205815834U (en) | A kind of chain type ball mill | |
| CN205903928U (en) | Grog circle cone type breaker | |
| CN204307689U (en) | A kind of limestone desulfurization powder preparation and conveying device | |
| CN204602325U (en) | A kind of large-size ball mill | |
| CN204182435U (en) | A kind of cement mill of efficient energy-saving | |
| CN203610174U (en) | Roller mill | |
| CN207745923U (en) | Raw material grinds grinding machine spout ring cowling slab adjusting device | |
| CN2290402Y (en) | Vertical high speed centrifugal superfine pulverizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20160818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |