CN202897564U - Rotary cutting integrated central feeder - Google Patents
Rotary cutting integrated central feeder Download PDFInfo
- Publication number
- CN202897564U CN202897564U CN 201220580936 CN201220580936U CN202897564U CN 202897564 U CN202897564 U CN 202897564U CN 201220580936 CN201220580936 CN 201220580936 CN 201220580936 U CN201220580936 U CN 201220580936U CN 202897564 U CN202897564 U CN 202897564U
- Authority
- CN
- China
- Prior art keywords
- scraper
- coal bin
- run coal
- pusher
- arm
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The utility model discloses a rotary cutting integrated central feeder which solves the problem of poor dredging effect in the prior art and comprises an improved raw coal bunker, scraping devices, pushing devices, a hyperbolic central feed bin, a plug board door, an intelligent electric cabinet and the like. The hyperbolic central feed bin is connected with a discharge outlet of the improved raw coal bunker, and the scraping devices, the pushing devices and the plug board door are controlled via the intelligent electric cabinet. The rotary cutting integrated central feeder is reasonable in design, simple in structure, convenient to install and high in practicality, does not occupy effective space of the improved raw coal bunker, can be intelligently controlled, is mainly used for solving the problem of coal blockage of an existing improved raw coal bunker of a coal-fired power plant, is suitable for conveying different types of coal, raw coal and coal slime, and is also applicable to bins for conveying materials in other industries.
Description
Technical field
The utility model relates to the feeder field, is specifically related to a kind of center feeder.
Background technology
Run coal bin is the important member of coal-fired plant boiler coal handling system, generally adopts the structures such as steel structure or steel reinforced concrete, and its shape top is square or is cylindrical, and the bottom is circular cone or square taper, big upper and lower small mouth, and former coal particle flows by deadweight from top to bottom.Because shrink gradually in the cross section, former coal particle more flows downward, and squeese pressure is larger, very easily causes coal dust to glue wall, knot arch, stop up when raw coal humidity or blending coal slime, causes disconnected coal, thereby has a strong impact on the smooth operation of boiler, and is especially even more serious at plum rain season.At present, for solving run coal bin chute blockage problem, the following measure of the general employing of power industry both at home and abroad: the first, manually knock the dredging mode, but labour intensity is large, inefficiency, and can't effectively control flow regime.The second, install additional block clearing, help stream and oscillatory system, such as loosening machine, air bubble, dither etc.Loosening machine is to utilize blockage-clearing device to do along the bulkhead inboard to pump, and loosen to stopping up the coal seam, but self easily causes new obstruction when equipment is not worked; Air bubble is to utilize the expansion shock wave of sudden outburst to make to stop up former coal particle to recover flow by gravity, but loose area is little, easily Coal Seam is become ineffective behind the rat hole; Dither is to utilize high-frequency to vibrate dredging, but because amplitude is little, easily causes and more shaking more in fact.Three, rotation coal bunker loosening apparatus is installed, this kind equipment can only be alleviated the chute blockage phenomenon to a certain extent, but dredges DeGrain, and adopt to hang and install, have potential safety hazard, simultaneously when using coal slime, dredger not only can't be brought into play the dredging effect, and impact is produced and normally carried out on the contrary.In addition, the anti-blocking equipment of the tower center feeder of the installation that also has is because this equipment has larger tower member to be installed in the run coal bin, and adopt single feed arrangement, take the run coal bin available space, and will cause upstream device out of service during breakdown of equipment, caused the fault coal that breaks.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art provides a kind of anti-blocking block clearing effect remarkable, can thoroughly solve run coal bin chute blockage problem, does not take the run coal bin available space, is applicable to the integrated center feeder of rotary-cutting type of various coals.
For achieving the above object, the technical solution of the utility model is: comprise hyperbolic center feed hopper, insertion plate door and intelligent electric-controlled case, characterized by further comprising and improve run coal bin, a 3-6 scraper, a 3-6 material-pulling device; Described improvement run coal bin is cylindrical or lower little large flared structure, and the centre is provided with circular feed opening; The feed opening of described hyperbolic center feed hopper top Innovation of Connection run coal bin, the bottom connects feeder; Insertion plate door is installed in the lower end of hyperbolic center feed hopper; Described scraper, material-pulling device, insertion plate door are by intelligent electric-controlled case control;
Described material-pulling device comprises pusher arm, pusher working shaft and pusher reductor, the pusher arm is installed on the pusher working shaft, the pusher working shaft is connected with the pusher speed reducer output shaft by the pusher speed reducer coupling, and the pusher reductor is captiveed joint with improvement run coal bin lower raft by the flange base of output flange; Material-pulling device is evenly arranged in the circle ring area between the inwall of the feed opening that improves run coal bin and improvement run coal bin;
Described scraper comprises scraper arm, scraper working shaft and scraper reductor, the scraper arm is installed on the scraper working shaft, the scraper working shaft is connected with the scraper speed reducer output shaft by the scraper speed reducer coupling, and the scraper reductor is captiveed joint with improvement run coal bin lower raft by the flange base of output flange; Described scraper is evenly arranged in pusher arm rotational trajectory and the arcuation zone of improving the formation of run coal bin inwall;
Described scraper working shaft is slightly longer than pusher working shaft, and the rotational trajectory layer of described scraper arm is arranged in the last layer of pusher arm rotational trajectory.
Described material-pulling device is 3, is evenly arranged in by 120 degree in the circle ring area between the feed opening that improves run coal bin and the inwall that improves run coal bin, and the minimum length of pusher arm equals half of distance between feed opening and the improvement run coal bin inwall; Described scraper is 3, and the scraper working shaft is arranged in pusher arm rotational trajectory and 3 arcuation zones of improving the formation of run coal bin inwall by 120 degree.
The maximum track of each pusher arm rotation is tangent with the maximum track of the pusher arm rotation of the inwall that improves run coal bin and adjacent material-pulling device.
Described scraper working shaft and pusher arm rotational trajectory are tangent, and the maximum rotational trajectory of scraper arm is tangent with the inwall that improves run coal bin, and the length of scraper arm is less than the length of pusher arm.
Described material-pulling device is 4, be divided in the circle ring area between the inwall that levels is arranged in the feed opening that improves run coal bin and improvement run coal bin, every layer each 2, the extreme length of each pusher arm is for improving half of run coal bin internal diameter, and minimum length equals half of distance between feed opening and the improvement run coal bin inwall; Described scraper is 4, and described scraper working shaft is arranged in pusher arm rotational trajectory and 4 arcuation zones of improving the formation of run coal bin inwall.
Described scraper working shaft and pusher arm rotational trajectory are tangent, and the maximum rotational trajectory of scraper arm is tangent with the inwall that improves run coal bin.
Described pusher arm is inclined-plane sickle shaped structure, and the up and down height of pusher arm can be regulated.
On described insertion plate door, below each symmetrical installs 2 pneumatic hammers, at described improvement run coal bin outer wall 3-4 pneumatic hammer is installed, described pneumatic hammer connects intelligent electric-controlled case.
Be provided with access opening on the outer wall of described improvement run coal bin and the hyperbolic center feed hopper.
Principle of work:
The cone bucket of the original former coal bunker of power plant is partly changed into cylindrical or tubaeform, former coal bunker top chute blockage probability elimination.When the former coal particle of former coal bunker moves from top to bottom, during normal dredging, former coal particle flow to feeder from feed opening certainly by the hyperbolic center feed hopper, regularly start one by one pusher arm and scraper arm by intelligent electric-controlled case simultaneously, prevent that the annular region compacting that raw coal forms at feed opening and the inwall that improves run coal bin from forming the knot arch of putting up a bridge.
When faulty coal or the coal slime that raw coal is moist, the blending agglomeration is stronger, when causing thus coal stream attenuate or cutout, monitor signal according to the coal current sensor in the feeder, intelligent electric-controlled case normally starts scraper arm, material pushing wheel, by scraper arm rotary-cut campaign, former coal particle is blown into feed opening continually and steadily, and according to load condition, the feeding coal of intelligent electric-controlled case control scraper arm; By the waveform rotation of material pushing wheel, push former coal particle to scraper wall scraper rotary-cut zone, make the material pushing wheel near zone form flow regime, prevent from forming dead angle and bridging.
The utility model refers to change the part cone bucket of former coal bunker bottom into cylindrical or tubaeform improvement run coal bin, by such scheme as can be known, the utlity model has following beneficial effect:
1, cone bucket part changes into cylindrically, can enlarge the usable capacity that improves run coal bin, and can control the coal supply flow by the feed of center feeder, satisfy the powder process needs.2, by the rotary-cut campaign of material-pulling device, can carry out the wiper cleaning to improving run coal bin lower raft raw coal, prevent canopy coal, knot arch; Balanced continuous-feeding guarantees that blanking is unimpeded simultaneously.3, by scraper the rotary-cut wave motion, can avoid raw coal to pile up bonding, form the dead angle, keep raw coal particle flow state.4, adopt a plurality of scrapers and a plurality of material-pulling device, can use simultaneously, also can according to circumstances use one by one in service can the protection self system.5, the hyperbolic center feed hopper is communicated with accessible with the improvement run coal bin, when raw coal is dry, can realize gravity flow, and to adopt sectional shrinkage ψ be 0.4～0 low ψ value hyperbola hopper, and the while connects two-way corrosion-resistant steel plate and full-bore runner form insertion plate door in the lower end.6, in feed hopper bottom, center with improve run coal bin outer wall appropriate location low frequency, pneumatic hammer that amplitude is large are installed, structurally eliminate feed hopper chute blockage factor, prevent new obstruction.7, realize Based Intelligent Control, stop orientation that can Set arbitrarily pusher arm, by setting, when not using material-pulling device, the pusher arm is parked near the position of improving the run coal bin bulkhead, hinders raw coal and flows in case thrust material arm rests on feed opening when out of service; Can flow acquisition of signal by coal, regulate feeding coal, and adopt the automatic vibration dredging of PLC programming control pneumatic hammer.8, reasonable in design, simple in structure, easy for installation, do not take the run coal bin available space, and practical, be mainly used in solving the chute blockage problem of coal-burning power plant's run coal bin, and be applicable to carry various raw coal and coal slime, also be applicable to the feed bin of the convey materials such as coal, chemical industry, metallurgy, building materials.
Description of drawings:
Fig. 1 is that material-pulling device of the present utility model, scraper are 3 structural representation.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is that material-pulling device of the present utility model, scraper are 4 birds-eye view.
Among the figure, 1. improve run coal bin, 2. feed opening, 3. pneumatic hammer, 4. access opening, 5. scraper arm, 6. scraper working shaft, 7. scraper speed reducer coupling, 8. scraper speed reducer output shaft, 9. scraper reductor, 10. pusher arm, 11. pusher working shafts, 12. pusher speed reducer couplings, 13. the pusher speed reducer output shaft, 14. pusher reductors, 15. hyperbolic center feed hoppers, 16. insertion plate door, 17. feeders, 18. intelligent electric-controlled casees.
Among Fig. 2, being the rotational trajectory of pusher arm with the broken circle of pusher arm, is the rotational trajectory of scraper arm with the broken circle of scraper arm, and middle solid line circle is the feed opening edge.
Among Fig. 3, two solid line great circles are the rotational trajectory of last layer pusher arm, and two dotted line great circles are the rotational trajectory of lower one deck pusher arm, and middle solid line circle is the feed opening edge, four rotational trajectories that roundlet is the scraper arm of periphery.
The specific embodiment
As shown in Figure 1, the utility model comprises and improves run coal bin 1,3 scrapers, 3 material-pulling devices, hyperbolic center feed hopper 15, insertion plate door 16, pneumatic hammer 3 and intelligent electric-controlled casees 18 etc.
Described improvement run coal bin 1 with cylindrical for well, internal diameter 3-4 rice, height is generally 2-8 rice according to field condition, also can be designed to lower young flared structure.Be provided with the descending circular feed opening 2 of raw coal at the midway location that improves run coal bin 1, about diameter 1.2-1.5 rice.
Described scraper, material-pulling device, insertion plate door 16, pneumatic hammer 4 are all by intelligent electric-controlled case 18 controls.Described insertion plate door 16 is preferred two-way to be split.The middle part of the outer wall of described improvement run coal bin 1 and hyperbolic center feed hopper 15 or bottom are provided with access opening 4.
The feed opening 2 of the top Innovation of Connection run coal bin 1 of described hyperbolic center feed hopper 15, the bottom connects feeder 17; Insertion plate door 16 is installed in the lower end of hyperbolic center feed hopper 15.On insertion plate door 16, below each symmetrical installs 2 pneumatic hammers 4, at the outer wall that improves run coal bin 1 3-4 pneumatic hammer 4 is installed, when obstruction appears in raw coal, dredge by rapping.
Described material-pulling device comprises pusher arm 10, pusher working shaft 11 and pusher reductor 14, pusher arm 10 is installed on the pusher working shaft 11, pusher working shaft 11 is connected with the output shaft 13 of pusher reductor 14 by coupler 12, and pusher reductor 14 is captiveed joint with improvement run coal bin 1 lower raft by the flange base of output flange.As shown in Figure 2, described material-pulling device is arranged in by 120 degree in the circle ring area of the feed opening 2 that improves run coal bin 1 and the inwall composition that improves run coal bin 1, the rotational trajectory of the maximum track of each pusher arm 10 rotations and the inwall that improves run coal bin 1 and the adjacent pusher arm 10 of scraping material-pulling device is tangent, minimum equals feed opening 2 and improves half of distance between the inwall of run coal bin 1, to be slightly larger than half for well.
Described scraper comprises scraper arm 5, scraper working shaft 6 and scraper reductor 9, scraper arm 5 is installed on the scraper working shaft 6, scraper working shaft 6 is connected with the output shaft 8 of scraper reductor 9 by coupler 7, and scraper reductor 9 is captiveed joint with improvement run coal bin 1 lower raft by the flange base of output flange.In conjunction with shown in Figure 1, scraper working shaft 6 is slightly longer than pusher working shaft 11, makes the rotation rail layer of scraper arm 5 be arranged in the last layer that the pusher arm revolves 10 transition marks.As shown in Figure 2, scraper working shaft 6 is arranged in pusher arm 10 rotational trajectories and improves in three arcuation zones of run coal bin 1 inwall formation, and scraper arm 5 maximum rotational trajectories are tangent with the inwall that improves run coal bin 1, and the length of scraper arm 5 is less than the length of scraper arm 10.
As shown in Figure 2, described pusher arm 10 is inclined-plane sickle shaped structure, and the up and down height of pusher arm 10 can be regulated.
As shown in Figure 3, described material-pulling device is 4, being divided into levels is arranged in the circle ring area that the feed opening 2 that improves run coal bin 1 and the inwall that improves run coal bin 1 form, every layer each 2, the extreme length of each pusher arm 10 is half of improvement run coal bin 1 internal diameter, minimum length equals feed opening 2 and improves half of distance between run coal bin 1 inwall, to be slightly larger than half for well; Described scraper is 4, and described scraper working shaft 6 is arranged in pusher arm 10 rotational trajectories and 4 arcuation zones of improving the formation of run coal bin 1 inwall, and scraper arm 5 maximum rotational trajectories are tangent with the inwall that improves run coal bin 1.
Claims (9)
1. the integrated center feeder of rotary-cutting type comprises hyperbolic center feed hopper, insertion plate door and intelligent electric-controlled case, it is characterized in that: also comprise and improve run coal bin (1), a 3-6 scraper, a 3-6 material-pulling device; Described improvement run coal bin (1) is cylindrical or lower little large flared structure, and the centre is provided with circular feed opening (2); The feed opening (2) of described hyperbolic center feed hopper (15) top Innovation of Connection run coal bin (1), the bottom connects feeder (17); Insertion plate door (16) is installed in the lower end of hyperbolic center feed hopper (15); Described scraper, material-pulling device, insertion plate door (16) are by intelligent electric-controlled case (18) control;
Described material-pulling device comprises pusher arm (10), pusher working shaft (11) and pusher reductor (14), pusher arm (10) is installed on the pusher working shaft (11), pusher working shaft (11) is connected with pusher speed reducer output shaft (13) by pusher speed reducer coupling (12), and pusher reductor (14) is captiveed joint with improvement run coal bin (1) lower raft by the flange base of output flange; Material-pulling device is evenly arranged in the circle ring area between the inwall of the feed opening (2) that improves run coal bin (1) and improvement run coal bin (1);
Described scraper comprises scraper arm (5), scraper working shaft (6) and scraper reductor (9), scraper arm (5) is installed on the scraper working shaft (6), scraper working shaft (6) is connected with scraper speed reducer output shaft (8) by scraper speed reducer coupling (7), and scraper reductor (9) is captiveed joint with improvement run coal bin (1) lower raft by the flange base of output flange; Described scraper is evenly arranged in pusher arm (10) rotational trajectory and the arcuation zone of improving the formation of run coal bin (1) inwall;
Described scraper working shaft (6) is slightly longer than pusher working shaft (11), and the rotational trajectory layer of described scraper arm (5) is arranged in the last layer of pusher arm (10) rotational trajectory.
2. the integrated center feeder of rotary-cutting type as claimed in claim 1 is characterized in that:
Described material-pulling device is 3, be evenly arranged in by 120 degree in the circle ring areas between the feed opening (2) that improves run coal bin (1) and the inwall that improves run coal bin (1), the minimum length of pusher arm (10) equals half of distance between feed opening (2) and improvement run coal bin (1) inwall; Described scraper is 3, and scraper working shaft (6) is arranged in pusher arm (10) rotational trajectory and 3 arcuation zones of improving the formation of run coal bin (1) inwall by 120 degree.
3. the integrated center feeder of rotary-cutting type as claimed in claim 2 is characterized in that: the maximum track of each pusher arm (10) rotation is tangent with the maximum track of pusher arm (10) rotation of the inwall that improves run coal bin (1) and adjacent material-pulling device.
4. the integrated center feeder of rotary-cutting type as claimed in claim 2, it is characterized in that: described scraper working shaft (6) is tangent with pusher arm (10) rotational trajectory, the maximum rotational trajectory of scraper arm (5) is tangent with the inwall that improves run coal bin (1), and the length of scraper arm (5) is less than the length of pusher arm (10).
5. the integrated center feeder of rotary-cutting type as claimed in claim 1, it is characterized in that: described material-pulling device is 4, be divided in the circle ring area between the inwall that levels is arranged in the feed opening (2) that improves run coal bin (1) and improvement run coal bin (1), every layer each 2, the extreme length of each pusher arm (10) is for improving half of run coal bin (1) internal diameter, and minimum length equals half of distance between feed opening (2) and improvement run coal bin (1) inwall; Described scraper is 4, and described scraper working shaft (6) is arranged in pusher arm (10) rotational trajectory and 4 arcuation zones of improving the formation of run coal bin (1) inwall.
6. the integrated center feeder of rotary-cutting type as claimed in claim 5, it is characterized in that: described scraper working shaft (6) is tangent with pusher arm (10) rotational trajectory, and the maximum rotational trajectory of scraper arm (5) is tangent with the inwall that improves run coal bin (1).
7. the integrated center feeder of rotary-cutting type as claimed in claim 1 is characterized in that: described pusher arm (10) is inclined-plane sickle shaped structure, and the up and down height of pusher arm (10) can be regulated.
8. the integrated center feeder of rotary-cutting type as claimed in claim 1, it is characterized in that: on described insertion plate door (16), below each symmetrical 2 pneumatic hammer (3) of installing, at described improvement run coal bin (1) outer wall 3-4 pneumatic hammer (3) is installed, described pneumatic hammer (3) connects intelligent electric-controlled case (18).
9. the integrated center feeder of rotary-cutting type as claimed in claim 1 is characterized in that: be provided with access opening (4) on the outer wall of described improvement run coal bin (1) and the hyperbolic center feed hopper (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580936 CN202897564U (en) | 2012-11-07 | 2012-11-07 | Rotary cutting integrated central feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580936 CN202897564U (en) | 2012-11-07 | 2012-11-07 | Rotary cutting integrated central feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202897564U true CN202897564U (en) | 2013-04-24 |
Family
ID=48118259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220580936 Withdrawn - After Issue CN202897564U (en) | 2012-11-07 | 2012-11-07 | Rotary cutting integrated central feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202897564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874608A (en) * | 2012-11-07 | 2013-01-16 | 安徽康迪纳电力科技有限责任公司 | Rotary-cut type integrated central feeding machine |
| CN103252119A (en) * | 2013-05-30 | 2013-08-21 | 天津太平洋机电技术及设备有限公司 | Tank for adding kieselguhr automatically of kieselguhr filter |
-
2012
- 2012-11-07 CN CN 201220580936 patent/CN202897564U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874608A (en) * | 2012-11-07 | 2013-01-16 | 安徽康迪纳电力科技有限责任公司 | Rotary-cut type integrated central feeding machine |
| CN102874608B (en) * | 2012-11-07 | 2015-04-01 | 安徽康迪纳电力科技有限责任公司 | Rotary-cut type integrated central feeding machine |
| CN103252119A (en) * | 2013-05-30 | 2013-08-21 | 天津太平洋机电技术及设备有限公司 | Tank for adding kieselguhr automatically of kieselguhr filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102874608B (en) | Rotary-cut type integrated central feeding machine | |
| CN208979884U (en) | A kind of granular material conveying feeding device | |
| CN209651013U (en) | Full-automatic coal hopper coal blockage dredging device | |
| CN202897564U (en) | Rotary cutting integrated central feeder | |
| CN110116874A (en) | A kind of anti-blocking block clearing coal scuttle of dried shrimp curve | |
| CN204056821U (en) | Hopper | |
| CN204249086U (en) | A kind of efficient environment-friendly concrete mixer | |
| CN202303358U (en) | CFB (Circulating Fluidized Bed) boiler coal feeding system for co-combustion of middling coals | |
| CN203473641U (en) | Rotating bunker type spiral anti-blocking device | |
| CN202356313U (en) | Wheel gear type screening machine | |
| CN202935800U (en) | Integral pneumatic vibration wave rotary-cut type block cleaner | |
| CN102506421B (en) | Circulating fluid bed (CFB) boiler coal supply system for blending combustion of middling coal | |
| CN107140333A (en) | A kind of limestone powder bin | |
| CN206407408U (en) | Single flow rotating block-proof machine | |
| CN204310274U (en) | Feed bin discharging anti-block apparatus | |
| CN202897229U (en) | Rotary-cut type dredging feeder | |
| CN206358942U (en) | A kind of wet desulphurization pulping device being fed with multi-functional adjustable dosage | |
| CN202765860U (en) | Scrape type screw discharging machine | |
| CN202175343U (en) | Sliding type anti-blocking device for blanking of coal cabin | |
| CN204866520U (en) | Prevent stifled fluid -bed wind riddle extension | |
| CN210285402U (en) | Novel clear stifled device | |
| CN205974572U (en) | Thick grey collection device of converter dry process dust removal | |
| CN210064024U (en) | Shrimp curve anti-blocking coal bucket | |
| CN207786790U (en) | A kind of apron feeder | |
| CN102502127A (en) | Scraper type anti-blocking discharging bin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130424 Effective date of abandoning: 20150401 |
|
| RGAV | Abandon patent right to avoid regrant |