CN113401517A - Anti-blocking device for stokehole coal bunker - Google Patents
Anti-blocking device for stokehole coal bunker Download PDFInfo
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- CN113401517A CN113401517A CN202110682498.4A CN202110682498A CN113401517A CN 113401517 A CN113401517 A CN 113401517A CN 202110682498 A CN202110682498 A CN 202110682498A CN 113401517 A CN113401517 A CN 113401517A
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- coal
- bin body
- stokehole
- dredging
- bunker
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to the technical field of coal storage equipment, and discloses a stokehole coal bunker anti-blocking device which comprises a dredging mechanism, a coal quantity monitoring mechanism and a control mechanism, wherein the control mechanism starts the dredging mechanism when the coal quantity monitoring mechanism monitors that the coal outlet of a coal outlet is lower than a preset value; dredge mechanism includes: the device comprises a bracket fixedly arranged on the side wall of a bin body, a driving motor arranged on the bracket, and a blockage removing impeller arranged in the bin body, wherein the blockage removing impeller is sleeved at one end of a transmission shaft, and the other end of the transmission shaft is connected with the driving motor; the vertical distance between the extension line of the transmission shaft along the length direction and the center line of the bin body is not less than 1/2 of the caliber of the coal outlet of the bin body. The anti-blocking device for the stokehole coal bunker can monitor the coal output of the stokehole coal bunker in real time, and when the coal blockage situation occurs, the dredging mechanism arranged on the bunker body is opened to block, so that the coal in the stokehole coal bunker can be timely and stably conveyed into the boiler.
Description
Technical Field
The invention relates to the technical field of coal storage equipment, in particular to a stokehole coal bunker anti-blocking device.
Background
The coal supply side of the coal-fired boiler is provided with a stokehole coal bunker, and coal is continuously conveyed to the boiler through the stokehole coal bunker. The coal storage amount of the stokehole coal bunker is usually 10-12h of coal fired amount of the boiler, and the coal storage amount is large, so that the pressure at the bottom of the stokehole coal bunker is high. When the backlog angle of the coal in the stokehole coal bunker is abnormal or the humidity of the coal is high, the coal blockage phenomenon is easy to occur, and the blockage phenomenon is not easy to dredge, so that the coal-fired boiler cannot stably run.
Disclosure of Invention
The invention aims to solve the technical problems and provide an anti-blocking device for a stokehole coal bunker, which can monitor the coal output of the stokehole coal bunker in real time, and can open a dredging mechanism arranged on a bunker body to remove blocking when the coal blockage occurs, so that the coal in the stokehole coal bunker can be timely and stably conveyed into a boiler.
In order to achieve the above object, the present invention provides a stokehole coal bunker anti-blocking device, comprising: the device comprises at least three dredging mechanisms arranged on the side wall of a stokehole coal bunker body, a coal quantity monitoring mechanism arranged below a coal outlet of the stokehole coal bunker, and a control mechanism connected with the dredging mechanisms and the coal quantity monitoring mechanism; the control mechanism starts the dredging mechanism when the coal amount monitoring mechanism monitors that the coal outlet coal amount is lower than a preset value; dredge mechanism includes: the device comprises a bracket fixedly arranged on the side wall of the bin body, a driving motor arranged on the bracket, and a blockage removing impeller arranged in the bin body, wherein the blockage removing impeller is sleeved at one end of a transmission shaft, and the other end of the transmission shaft is connected with the driving motor; the vertical distance between the extension line of the transmission shaft along the length direction and the middle line of the bin body is not less than 1/2 of the caliber of the coal outlet of the bin body.
Preferably, the dredging mechanism further comprises a driving mechanism arranged on the support and used for driving the blockage removing impeller to reciprocate along the length direction of the transmission shaft.
Preferably, the vertical distance between the dredging mechanism and the coal outlet is not less than 1 m.
Preferably, the three dredging mechanisms are arranged on the same horizontal plane of the bin body.
Preferably, the three dredging mechanisms are spirally arranged on the side wall of the bin body.
Further preferably, the lower part of the bin body is in an inverted conical shape, and the three dredging mechanisms are arranged on a conical spiral line along the outer surface of the bin body.
According to the above description and practice, the furnace front coal bunker anti-blocking device of the invention is provided with three dredging mechanisms on the side wall of the bunker body, and the vertical distance between the extension lines of the transmission shafts of the three dredging mechanisms along the length direction and the middle line of the bunker body is not less than 1/2 of the caliber of the bunker outlet; and a coal amount monitoring mechanism is arranged at the coal outlet to monitor the coal amount of the coal outlet in real time, and a control mechanism for controlling the opening and closing of the dredging mechanism is arranged. When the coal blockage phenomenon occurs in the bin body and the coal output is lower than a preset value, the control mechanism opens the dredging mechanism, so that the accumulated coal in the bin body can be effectively loosened, and the problem of coal blockage is solved. In addition, a driving mechanism for driving the blockage removing impeller to reciprocate along the length direction of the transmission shaft is further arranged in the dredging mechanism, so that the capability of the dredging mechanism for loosening accumulated coal is improved, and the problem of coal blockage can be solved in time.
Drawings
Fig. 1 is a schematic structural diagram of a stokehole coal bunker anti-blocking device according to an embodiment of the present invention.
Fig. 2 is a plan view of a pull through mechanism according to an embodiment of the present invention.
The reference numbers in the figures are:
1. bin body 2, dredging mechanism 3 and coal outlet
4. Support 5, driving motor 6, arrange stifled impeller
7. A transmission shaft 8, a coal amount monitoring mechanism 9 and a control mechanism.
Detailed Description
Exemplary embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. In the present disclosure, the terms "include", "arrange", "disposed" and "disposed" are used to mean open-ended inclusion, and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting as to the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the stokehole coal bunker anti-blocking device in this embodiment includes: the device comprises at least three dredging mechanisms 2 arranged on the side wall of a stokehole coal bunker body 1, a coal quantity monitoring mechanism 8 arranged below a coal outlet 3 of the stokehole coal bunker, and a control mechanism 9 connected with the dredging mechanisms 2 and the coal quantity monitoring mechanism 8.
The coal amount monitoring mechanism 8 is used for monitoring the amount of coal falling through the coal outlet 3, and when the coal blockage phenomenon occurs in the bin body 1, the coal outlet amount can be reduced. The coal amount monitoring mechanism 8 may be implemented by an infrared detection device, a radar device, a weight sensor, or the like. The coal output is essentially the coal flow, and the means for monitoring the coal flow belongs to the prior art and is not described herein again.
The control mechanism 9 can be realized by a single chip microcomputer or a control circuit and is respectively in communication connection with the dredging mechanism 2 and the coal quantity monitoring mechanism 8. When the coal amount monitoring mechanism 8 monitors that the coal amount is smaller than a preset value, the coal blockage phenomenon in the bin body 1 can be determined, then a warning signal is sent to the control mechanism 9, after receiving the warning signal, the control mechanism 9 sends a starting signal to the dredging mechanism 2, and the dredging mechanism 2 is started to dredge the accumulated coal in the bin body 1; after the accumulated coal is dredged, the coal output monitored by the coal quantity monitoring mechanism 8 exceeds a preset value, then a prompt signal is sent to the control mechanism 2, the control mechanism 2 sends a closing signal to the dredging mechanism 2, and the dredging mechanism 2 is closed.
In this embodiment, the upper part of the silo body 1 is cylindrical, the lower part is conical, and a coal outlet 3 is arranged at the bottom end. The dredging mechanism 2 comprises a bracket 4, a driving motor 5 and a blockage removing impeller 6. Wherein, the one end of support 4 is fixed to be set up on the lateral wall of storehouse body 1, and the other end of support 4 is then fixed to be set up on fixed surfaces such as wall body or ground for provide a supporting platform for driving motor 5. The blockage removing impeller 6 is arranged in the bin body 1, and the center of the blockage removing impeller is sleeved on the transmission shaft 7 and synchronously rotates along with the transmission shaft 7. One end of the transmission shaft 7 far away from the blockage removing impeller 6 is connected with the driving motor 5. A reduction device, such as a gearbox, is preferably also provided between the drive motor 5 and the drive shaft 7, so that the plugging removal impeller 6 can be driven to rotate at different rotational speeds.
It should be noted that the transmission shafts 7 of the three dredging devices 2 are not directed towards the middle line of the cartridge body 1, but are offset to one side of the middle line. Specifically, the vertical distance between the extension lines of the three transmission shafts 7 along the length direction and the middle line of the bin body 1 is not less than 1/2 of the caliber of the coal outlet 3. As shown in fig. 2, in this embodiment, the perpendicular distances between the extension lines of the three transmission shafts 7 in the length direction thereof and the middle line of the cabin 1 are a, b, and c, respectively, and a ═ b ═ c. By adopting the structure, the three dredging mechanisms 2 do not point to the same point, and accumulated coal in the bin body 1 is easier to dredge when the blockage removing impeller 6 rotates.
In one embodiment, the dredging mechanism 2 further comprises a driving mechanism arranged on the bracket 4, wherein the driving mechanism consists of a power source and a reciprocating intermittent motion mechanism, and the reciprocating intermittent motion mechanism is set to reciprocate along the length direction of the transmission shaft 7 under the driving of the power source. The reciprocating intermittent motion mechanism can be any one of a ratchet mechanism, a sheave mechanism, a link mechanism or an incomplete gear mechanism. And the driving motor 5 and the transmission shaft 7 in the dredging mechanism 2 are arranged on the reciprocating intermittent motion mechanism, so that the blockage removing impeller 6 is driven to reciprocate along the length direction of the transmission shaft 7. When the coal blockage phenomenon occurs in the bin body 1, the dredging mechanism 2 is opened, the blockage removing impeller 6 moves back and forth along the length direction of the transmission shaft 7 while rotating, and the blocked coal can be loosened, so that the coal can smoothly fall out from the coal outlet 3.
In addition, the three dredging mechanisms 2 are arranged on the same horizontal plane of the bin body 1 in the embodiment, and the function of removing the accumulated coal is realized by disturbing the coal near the horizontal plane.
In another embodiment, three dredging mechanisms 2 are spirally distributed on the side wall of the bin body 1, and under the structure, the dredging mechanisms 2 can disturb coal beds with different heights, and the blockage removal can be quickly realized by combining the rotation of the blockage removal impeller 6. In the case of an inverted conical lower portion of the cartridge body 1, the three dredging means 2 are preferably arranged on a conical helix along the surface of the cartridge body 1.
In addition, because the caliber of the coal outlet 3 is usually far smaller than the inner diameter of the bin body 1, when the vertical distance between the dredging mechanism 2 and the coal outlet 3 is smaller, the blockage removing effect of the dredging mechanism 2 is affected. Therefore, when the dredging mechanism 2 is arranged, the vertical distance between the dredging mechanism 2 and the coal outlet 3 is not less than 1 m.
The three dredging mechanisms 2 are arranged in the embodiment, and the number of the dredging mechanisms 2 can be increased according to the size of the actual bin body 1, so that the optimal blockage removing effect is achieved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a stokehold coal bunker prevents stifled device which characterized in that includes:
the device comprises at least three dredging mechanisms arranged on the side wall of a stokehole coal bunker body, a coal quantity monitoring mechanism arranged below a coal outlet of the stokehole coal bunker, and a control mechanism connected with the dredging mechanisms and the coal quantity monitoring mechanism;
the control mechanism starts the dredging mechanism when the coal amount monitoring mechanism monitors that the coal outlet coal amount is lower than a preset value;
dredge mechanism includes: the device comprises a bracket fixedly arranged on the side wall of the bin body, a driving motor arranged on the bracket, and a blockage removing impeller arranged in the bin body, wherein the blockage removing impeller is sleeved at one end of a transmission shaft, and the other end of the transmission shaft is connected with the driving motor;
the vertical distance between the extension line of the transmission shaft along the length direction and the middle line of the bin body is not less than 1/2 of the caliber of the coal outlet of the bin body.
2. The stokehole coal bunker blockage prevention device as recited in claim 1,
the dredging mechanism further comprises a driving mechanism which is arranged on the support and drives the blockage removing impeller to do reciprocating motion along the length direction of the transmission shaft.
3. The stokehole coal bunker blockage prevention device as recited in claim 1,
the vertical distance between the dredging mechanism and the coal outlet is not less than 1 m.
4. The stokehole coal bunker blockage prevention device as recited in claim 1,
the three dredging mechanisms are arranged on the same horizontal plane of the bin body.
5. The stokehole coal bunker blockage prevention device as recited in claim 1,
the three dredging mechanisms are spirally arranged on the side wall of the bin body.
6. The stokehole coal bunker blockage prevention device as recited in claim 5,
the lower part of the bin body is in an inverted conical shape, and the three dredging mechanisms are arranged on a conical spiral line along the outer surface of the bin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682498.4A CN113401517B (en) | 2021-06-17 | 2021-06-17 | Anti-blocking device for stokehole coal bunker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110682498.4A CN113401517B (en) | 2021-06-17 | 2021-06-17 | Anti-blocking device for stokehole coal bunker |
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| Publication Number | Publication Date |
|---|---|
| CN113401517A true CN113401517A (en) | 2021-09-17 |
| CN113401517B CN113401517B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110682498.4A Active CN113401517B (en) | 2021-06-17 | 2021-06-17 | Anti-blocking device for stokehole coal bunker |
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| JP2005029202A (en) * | 2003-07-14 | 2005-02-03 | Ishikawajima Harima Heavy Ind Co Ltd | Apparatus for destroying bridge in powder storing silo |
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| CN203237628U (en) * | 2013-05-22 | 2013-10-16 | 青岛港（集团）有限公司 | Sack filling machine with bulk mineral aggregate blanking auxiliary stirring device |
| CN204038254U (en) * | 2014-08-28 | 2014-12-24 | 华电国际电力股份有限公司技术服务中心 | Prevent blocking of coal bunker in thermal powerplant dredger |
| CN204056824U (en) * | 2014-07-09 | 2014-12-31 | 中粮（成都）粮油工业有限公司 | A kind of coal bunker loosening equipment of intelligent and high-efficiency |
| CN204684966U (en) * | 2015-05-20 | 2015-10-07 | 湖北舜致助剂制造有限公司 | A kind of for the composite tank of polycarboxylic acids masterbatch Special agitating |
| CN209582505U (en) * | 2018-10-22 | 2019-11-05 | 杭州金鼎实业有限公司 | Sandstone blanking feed bin |
| CN209635064U (en) * | 2019-03-05 | 2019-11-15 | 国电荥阳煤电一体化有限公司 | A kind of run coal bin with Anti-blocking structure |
| CN110884780A (en) * | 2019-11-27 | 2020-03-17 | 山东涵轲尔建设机械有限公司 | Prevent blockking up cement bin |
| CN213036603U (en) * | 2020-06-16 | 2021-04-23 | 湖北硒诺唯新功能化硅胶材料有限公司 | Material loading machine storage silo is used in production of functional silica gel material |
-
2021
- 2021-06-17 CN CN202110682498.4A patent/CN113401517B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005029202A (en) * | 2003-07-14 | 2005-02-03 | Ishikawajima Harima Heavy Ind Co Ltd | Apparatus for destroying bridge in powder storing silo |
| CN203033230U (en) * | 2012-12-21 | 2013-07-03 | 王庆想 | Coal blockage unclogging device |
| CN203237628U (en) * | 2013-05-22 | 2013-10-16 | 青岛港（集团）有限公司 | Sack filling machine with bulk mineral aggregate blanking auxiliary stirring device |
| CN204056824U (en) * | 2014-07-09 | 2014-12-31 | 中粮（成都）粮油工业有限公司 | A kind of coal bunker loosening equipment of intelligent and high-efficiency |
| CN204038254U (en) * | 2014-08-28 | 2014-12-24 | 华电国际电力股份有限公司技术服务中心 | Prevent blocking of coal bunker in thermal powerplant dredger |
| CN204684966U (en) * | 2015-05-20 | 2015-10-07 | 湖北舜致助剂制造有限公司 | A kind of for the composite tank of polycarboxylic acids masterbatch Special agitating |
| CN209582505U (en) * | 2018-10-22 | 2019-11-05 | 杭州金鼎实业有限公司 | Sandstone blanking feed bin |
| CN209635064U (en) * | 2019-03-05 | 2019-11-15 | 国电荥阳煤电一体化有限公司 | A kind of run coal bin with Anti-blocking structure |
| CN110884780A (en) * | 2019-11-27 | 2020-03-17 | 山东涵轲尔建设机械有限公司 | Prevent blockking up cement bin |
| CN213036603U (en) * | 2020-06-16 | 2021-04-23 | 湖北硒诺唯新功能化硅胶材料有限公司 | Material loading machine storage silo is used in production of functional silica gel material |
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| CN113401517B (en) | 2023-02-28 |
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Effective date of registration: 20220905 Address after: 100176, No. 1, Kangding street, Daxing District economic and Technological Development Zone, Beijing, B2 Applicant after: CHINA HUAYE GROUP Co.,Ltd. Applicant after: TIANJIN HUAYE ENGINEERING DESIGN Co.,Ltd. Address before: 100085 block B2, 1 Kangding street, economic and Technological Development Zone, Daxing District, Beijing Applicant before: CHINA HUAYE GROUP Co.,Ltd. |
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