CN112239027A - Flat-bottom coal silo - Google Patents
Flat-bottom coal silo Download PDFInfo
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- CN112239027A CN112239027A CN202011230802.3A CN202011230802A CN112239027A CN 112239027 A CN112239027 A CN 112239027A CN 202011230802 A CN202011230802 A CN 202011230802A CN 112239027 A CN112239027 A CN 112239027A
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- coal
- flat
- silo
- screw rod
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
- B65G65/466—Devices for emptying otherwise than from the top using screw conveyors arranged to be movable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/08—Devices for emptying storage spaces as completely as possible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention belongs to the technical field of coal storage and transportation, and particularly relates to a coal flat-bottom silo which solves the problems that an existing flat-bottom silo is arched at a coal discharge port and coal which is not at the coal discharge port cannot be cleaned. The invention comprises a flat-bottom silo and a spiral coal conveying device; a coal unloading pit is arranged at the bottom of the flat-bottom silo; the spiral coal conveying device comprises a rotation mechanism, a revolution mechanism, a central swing mechanism and a spiral rod; one end of the screw rod is connected with the self-rotating mechanism, the other end of the screw rod is connected with the central rotating mechanism through a self-rotating sliding bearing, the central rotating mechanism is fixed in the center of the bottom of the flat silo, and the self-rotating mechanism drives the screw rod to rotate around the central shaft of the screw rod; the revolution mechanism rotates along the circumferential direction of the bottom of the flat-bottom silo, the revolution mechanism is fixedly connected with the rotation mechanism, and the rotation of the revolution mechanism drives the rotation mechanism and the screw rod to rotate around the central rotation mechanism. The invention not only solves the problems of coal unloading, arch forming and hardening of the flat-bottom silo, but also can clean the residual repose angle coal in the silo.
Description
Technical Field
The invention belongs to the technical field of coal storage and transportation, and particularly relates to a flat-bottom coal silo.
Background
The coal mine is used for storing and transporting coal, wherein a cylindrical coal storage silo with a conical bottom is commonly used, namely, the bottom of the silo is of a cone structure, and when the coal needs to be output outwards, a coal gate plate at the bottom of the silo is opened, so that the coal can slide down from a cone wall and be loaded and transported away. However, the diameter of the silo cannot be further enlarged due to the limitation of the design of the conical bottom structure, and the bottom cone also occupies a large part of the internal volume of the silo. According to investigation, the largest conical bottom silo in China has a capacity of 4 ten thousand meters for carrying out heavy planting, and the coal loading rate is only about 70 percent.
If the bottom of the silo is changed into a flat bottom, the defect of centrum design can be overcome, the volume of the silo can reach more than 6 ten thousand meters, which is several times or even dozens of times of that of a common conical bottom silo, the loading rate of the silo can reach more than 95%, and the silo is more suitable for large and medium coal storage. However, although the storage capacity and the loading rate of the existing flat-bottom silo are enlarged, two problems can be faced, the first problem is the problem that coal is arched at a coal unloading port, a stable structure is easily formed between the coal and the coal is clamped at the coal unloading port and cannot fall down, the normal coal unloading process is influenced, and the arched coal has great potential safety hazard in long-term storage; the second major problem is that coal not at the coal discharge port will not be cleaned and they will be stored near the coal discharge port for a long period of time in the form of a repose angle. The coal is not treated for a long time and has the potential safety hazard.
Disclosure of Invention
The invention provides a coal flat-bottom silo, which aims to solve the problems that the coal is arched at a coal unloading port and the coal which is not at the coal unloading port cannot be cleaned in the conventional flat-bottom silo.
The invention is realized by adopting the following technical scheme: a coal flat-bottom silo comprises a flat-bottom silo and a spiral coal conveying device;
a coal unloading pit is arranged at the bottom of the flat-bottom silo;
the spiral coal conveying device comprises a rotation mechanism, a revolution mechanism, a central swing mechanism and a spiral rod with spiral blades;
one end of the screw rod is connected with the self-rotating mechanism, the screw rod is arranged along the radial direction of the flat-bottom silo, the other end of the screw rod is connected with the central rotating mechanism through a self-rotating sliding bearing, the central rotating mechanism is fixed in the center of the bottom of the flat-bottom silo, and the self-rotating mechanism drives the screw rod to rotate around the central shaft of the screw rod;
the revolution mechanism circumferentially rotates around the center of the flat-bottom silo along the bottom surface of the flat-bottom silo, the revolution mechanism is fixedly connected with the rotation mechanism, and the rotation of the revolution mechanism drives the rotation mechanism and the screw rod to rotate around the central rotation mechanism;
the self-rotation of the screw rod and the rotation of the screw rod around the central swing mechanism drive the coal to be discharged from the coal dumping pit.
Furthermore, the central slewing mechanism comprises a support beam, a revolving slewing bearing, a central column sleeve, a bearing support plate and a central column;
the bottom end of the central column is fixedly provided with a supporting beam, the supporting beam is fixedly connected with the flat-bottomed silo, a central column sleeve is fixedly connected to the position, close to the bottom end, of the central column, a revolution slewing bearing is installed on the central column sleeve, the top of one side of the revolution slewing bearing is fixedly connected with a bearing supporting plate, and the bearing supporting plate is fixedly connected with a rotation sliding bearing.
Further, an umbrella-shaped protective cap 2 is fixed on the top of the central column 75.
Further, a ventilation access hole 6 is formed in the central column 75.
Further, the rotation mechanism comprises a motor base, a rotation motor and a coupling;
the rotation motor is fixed on the motor base, is connected with the screw rod through a coupler and drives the screw rod to rotate.
Further, the revolution mechanism comprises a revolution motor, a driving wheel, a driven wheel and an annular guide rail;
the output shaft of the revolution motor is connected with a driving wheel, the driving wheel and a driven wheel, the driven wheel is positioned in an annular guide rail, the annular guide rail is arranged in a circle along the inner wall of the bottom of the flat-bottom silo, and the revolution motor drives the driven wheel to rotate along the annular guide rail, so that the screw rod rotates around the central swing mechanism.
Furthermore, an annular protection brim is arranged in the flat-bottom silo, the annular protection brim is obliquely arranged and a circle of the annular protection brim is arranged in the flat-bottom silo, the top end of the annular protection brim is fixed on the side wall of the flat-bottom silo, the other end of the annular protection brim is positioned above the screw rod, and the rotation mechanism and the revolution mechanism are positioned below the annular protection brim.
Furthermore, the coal unloading pits are of strip-shaped hole structures arranged at intervals, and a coal gate plate is correspondingly arranged at the bottom of each coal unloading pit.
Compared with the prior art, the invention has the beneficial effects that:
1. the structure is simple, the bin capacity is greatly improved, and the energy consumption is greatly reduced;
2. the coal discharging, arching and hardening of the flat-bottom silo are solved through rotation and revolution of the screw rods, and the flat-bottom silo is used for cleaning residual repose angle coal in the silo;
3. the ventilation access hole is arranged to facilitate an operator to enter and overhaul the central swing mechanism, and on the other hand, inert gases such as nitrogen and the like can be introduced to remove gas in the silo at any time, so that the operation safety of the silo is ensured;
4. this application can be through the rotational speed of control motor, the transport capacity of adjustment hob, also can use effectual coal arch camber or the department of condensing in driving the storehouse through the cooperation of rotation motor and revolution motor, improves system efficiency greatly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic horizontal plane projection of the spiral coal conveying apparatus;
FIG. 3 is a schematic structural diagram of a central revolving mechanism;
in the figure: 1-flat-bottom silo, 2-annular protective eaves, 3-screw rod, 4-coal unloading pit, 5-rotation mechanism, 51-motor base, 52-rotation motor, 53-coupler, 6-revolution mechanism, 61-revolution motor, 62-driving wheel, 63-driven wheel, 64-annular guide rail, 7-central rotation mechanism, 71-supporting beam, 72-revolution rotation bearing, 73-central column sleeve, 74-bearing supporting plate, 75-central column, 76-umbrella-shaped protective cap, 77-ventilation access hole and 8-rotation sliding bearing.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the invention can be implemented, so that the invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the disclosure of the invention without affecting the efficacy and the achievable purpose of the invention. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the invention, and changes or modifications in the relative relationship may be made without substantial technical changes.
Referring to fig. 1 to 3, the present invention provides a technical solution: a coal flat-bottom silo comprises a flat-bottom silo 1 and a spiral coal conveying device;
the bottom of the flat-bottom silo 1 is provided with a coal unloading pit 4;
the spiral coal conveying device comprises a rotation mechanism 5, a revolution mechanism 6, a central swing mechanism 7 and a spiral rod 3 with spiral blades;
one end of the screw rod 3 is connected with the self-rotating mechanism 5, the screw rod 3 is arranged along the radial direction of the flat-bottom silo 1, the other end of the screw rod 3 is connected with the central rotating mechanism 7 through a self-rotating sliding bearing, the central rotating mechanism 7 is fixed in the center of the bottom of the flat-bottom silo 1, and the self-rotating mechanism 5 drives the screw rod 3 to rotate around the central shaft of the screw rod 3;
the revolution mechanism 6 circumferentially rotates around the center of the flat-bottom silo 1 along the bottom surface of the flat-bottom silo 1, the revolution mechanism 6 is fixedly connected with the rotation mechanism 5, and the rotation of the revolution mechanism 6 drives the rotation mechanism 5 and the screw rod 3 to rotate (namely revolve) around the central rotation mechanism 7;
the rotation of the screw rod 3 and the rotation around the central revolving mechanism 7 drive the coal self-discharging coal pit 4 to discharge.
The central slewing mechanism 7 comprises a support beam 71, a revolving slewing bearing 72, a central column sleeve 73, a bearing support plate 74 and a central column 75;
a support beam 71 is fixed at the bottom end of the central column 75, the support beam 71 is fixedly connected with the flat-bottomed silo 1, a central column sleeve 73 is fixedly connected to the position, close to the bottom end, of the central column 75, a revolving rotary bearing 72 is installed on the central column sleeve 73, a bearing support plate 74 is fixedly connected to the top of one side of the revolving rotary bearing 72, and the bearing support plate 74 is fixedly connected with the rotation sliding bearing 8.
An umbrella-shaped protective cap 76 is fixed at the top of the central column 75, the umbrella-shaped protective cap 76 is arranged to protect the central slewing mechanism 7, and coal is prevented from damaging parts of the central slewing mechanism 7 when coal is stored in a silo, and once a fault occurs, all coal in the silo needs to be emptied for maintenance, which causes a large amount of unnecessary loss and also has great potential safety hazard.
The central column 75 is provided with a ventilation access hole 77, the center revolving mechanism 7 is positioned in the center of the bottom of the flat-bottom silo 1, the periphery of the flat-bottom silo 1 is almost completely sealed, parts of the center revolving mechanism 7 need to be periodically filled with oil, overhauled and the like, the ventilation access hole 77 is arranged, on one hand, an operator can conveniently enter and operate the ventilation access hole, a round steel ladder is welded in the central column 75, and the operator can enter the bottom of the central column 75 and reach the access hole through the ladder to realize observation, bearing oil filling and the like; on the other hand, inert gas pipelines such as nitrogen and the like can be arranged from the bottom of the silo to the ventilation access hole 77, so that gas in the silo can be removed at any time, and the operation safety of the silo is ensured.
All parts of the central slewing mechanism 7 are connected by bolts, so that the central slewing mechanism is convenient to disassemble and assemble and simple to operate; if the spiral coal discharging device is seriously damaged or needs to be replaced when the replacement period is reached, the flat-bottom silo 1 is emptied, people enter the flat-bottom silo 1 from the access hole arranged on one side of the silo wall, only the connecting bolt between the self-rotating sliding bearing 8 and the bearing support plate 74 needs to be detached, and then the spiral coal discharging device is pulled out from the silo access hole; if the umbrella-shaped protective cap 76 or the revolving rotary bearing 72 is damaged, only the corresponding connecting bolt needs to be removed.
The rotation mechanism 5 comprises a motor base 51, a rotation motor 52 and a coupling 53;
the rotation motor 52 is fixed to the motor base 51, the rotation motor 52 is connected to the screw rod 3 through the coupling 53, and the rotation motor 52 drives the screw rod 3 to rotate.
The revolution mechanism 6 comprises a revolution motor 61, a driving wheel 62, a driven wheel 63 and an annular guide rail 64;
the output shaft of the revolution motor 61 is connected with a driving wheel 62, the driving wheel 62 and a driven wheel 63, the driven wheel 63 is positioned in an annular guide rail 64, the annular guide rail 64 is arranged for one circle along the inner wall of the bottom of the flat silo 1, and the revolution motor 61 drives the driven wheel 63 to rotate along the annular guide rail 64, so that the screw rod 3 rotates around the central slewing mechanism 7.
The coal unloading device is characterized in that an annular protection eave 2 is arranged in the flat silo 1, the annular protection eave 2 is obliquely arranged and is arranged in the flat silo 1 for one circle, the top end of the annular protection eave 2 is fixed on the side wall of the flat silo 1, the other end of the annular protection eave 2 is located above the screw rod 3, the rotation mechanism 5 and the revolution mechanism 6 are located below the annular protection eave 2, the annular protection eave 2 is arranged to ensure that coal cannot fall into a motor operation area when coal is unloaded, and maintenance can be carried out only by emptying all coal in the silo once a fault occurs, so that a large amount of unnecessary loss is caused, and a great potential safety hazard also exists.
Unload coal pit 4 and be the bar pore structure that many intervals set up, every 4 bottoms of unloading coal pit correspond and set up a coal flashboard, and the coal pit is unloaded to traditional toper relatively, and the bar is unloaded the coal pit structure and is simpler, and the construction degree of difficulty and cost also greatly reduced more are applicable to medium and large-scale coal storage silo, and the bar is unloaded the coal pit and is more cooperated the use of this application easily moreover, has improved the logistics quality and the efficiency of coal greatly.
The rotation motor 52 and the revolution motor 61 can both use permanent magnet synchronous motors, in the medium-large flat-bottom silo 1, on the premise of a certain coal output, the rotation and revolution rotating speed of the system is small, and the permanent magnet synchronous motors are characterized in that the size is small, the noise is low, the rotating speed is low, and the rotating speed can be adjusted randomly in the range through a frequency converter, so that the rotation motor 52 and the revolution motor 61 can be directly connected with the screw rod 8 or the driving wheel 5 to operate after speed regulation, and parts such as a speed reducer are omitted, so that the equipment structure is simpler, the size is smaller, the silo capacity is correspondingly improved, and the energy consumption is greatly reduced.
The working principle of the invention is as follows:
when the silo needs to discharge coal, the coal gate at the bottom of the coal discharging pit 4 is opened, a part of the coal is discharged under the self gravity, when the coal is arched or hardened and does not fall down, the self-rotating mechanism 5 of the application is used, the self-rotating motor 52 of the self-rotating mechanism 5 is opened, the self-rotating motor 52 drives the screw rod 3 to rotate, the coal moves from the blade to the center of the silo along the tangential direction under the action of the spiral thrust of the screw rod 3, moves to the coal discharging pit 4 to fall down and be discharged, and therefore the purposes of breaking coal knots and outputting the coal are achieved;
when coal at a certain position in the silo falls to the greatest extent and other positions in the silo need to be cleaned, or the silo needs to be emptied, the screw rod 3 is required to revolve around the center of the flat-bottom silo 1, the revolution of the screw rod 3 is realized through the revolution mechanism 6, the revolution motor 61 of the revolution mechanism 6 is started, the revolution motor 61 drives the driving wheel 62 and the driven wheel 63 to move in an annular orbit, so that circular motion is performed, meanwhile, the screw rod 3 is also driven to revolve around the center of the flat-bottom silo 1, and at the moment, the screw rod 3 brings the residual repose angle coal in the silo into the strip-shaped coal pit 4, so that the purpose of emptying the silo is.
The device can be well applied to various closed and semi-closed flat-bottom silos for storing coal, and is also suitable for the flat-bottom silos with large diameter, high material level in the silo and severe environment of the silo.
The coal storage silo can be used for various closed and semi-closed flat-bottom silos for storing coal, and is also suitable for flat-bottom silos with large diameter, high material level in the silo and severe environment of the silo.
The above embodiments are merely illustrative of the principles of the invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A coal flat-bottom silo is characterized in that: comprises a flat-bottom silo (1) and a spiral coal conveying device;
a coal unloading pit (4) is arranged at the bottom of the flat-bottom silo (1);
the spiral coal conveying device comprises a rotation mechanism (5), a revolution mechanism (6), a central swing mechanism (7) and a spiral rod (3) with spiral blades;
one end of the screw rod (3) is connected with the self-rotating mechanism (5), the screw rod (3) is arranged along the radial direction of the flat-bottom silo (1), the other end of the screw rod (3) is connected with the central rotating mechanism (7) through a self-rotating sliding bearing (8), the central rotating mechanism (7) is fixed in the center of the bottom of the flat-bottom silo (1), and the self-rotating mechanism (5) drives the screw rod (3) to rotate around the central shaft of the screw rod (3);
the revolution mechanism (6) circumferentially rotates around the center of the flat-bottom silo (1) along the bottom surface of the flat-bottom silo (1), the revolution mechanism (6) is fixedly connected with the rotation mechanism (5), and the rotation of the revolution mechanism (6) drives the rotation mechanism (5) and the screw rod (3) to rotate around the central rotation mechanism (7);
the screw rod (3) rotates around the central revolving mechanism (7) to drive the coal self-discharging coal pit (4) to discharge.
2. A coal flat bottom silo as defined in claim 1 wherein: the central slewing mechanism (7) comprises a support beam (71), a revolving slewing bearing (72), a central column sleeve (73), a bearing support plate (74) and a central column (75);
the bottom end of the central column (75) is fixedly provided with a supporting beam (71), the supporting beam (71) is fixedly connected with the flat-bottomed silo (1), a central column sleeve (73) is fixedly connected to a position, close to the bottom end, on the central column (75), a revolving rotary bearing (72) is installed on the central column sleeve (73), a bearing supporting plate (74) is fixedly connected to the top of one side of the revolving rotary bearing (72), and the bearing supporting plate (74) is fixedly connected with the rotation sliding bearing (8).
3. A coal flat bottom silo as defined in claim 2 wherein: an umbrella-shaped protective cap (76) is fixed on the top of the central column (75).
4. A coal flat bottom silo as defined in claim 2 wherein: and a ventilation access hole (77) is formed in the central column (75).
5. A coal flat bottom silo as defined in claim 1 wherein: the rotation mechanism (5) comprises a motor base (51), a rotation motor (52) and a coupling (53);
the rotation motor (52) is fixed on the motor base (51), the rotation motor (52) is connected with the screw rod (3) through a coupler (53), and the rotation motor (52) drives the screw rod (3) to rotate.
6. A coal flat bottom silo as defined in claim 1 wherein: the revolution mechanism (6) comprises a revolution motor (61), a driving wheel (62), a driven wheel (63) and an annular guide rail (64);
an output shaft of the revolution motor (61) is connected with a driving wheel (62), the driving wheel (62) and a driven wheel (63), the driven wheel (63) is positioned in an annular guide rail (64), the annular guide rail (64) is arranged for one circle along the inner wall of the bottom of the flat-bottomed silo (1), and the revolution motor (61) drives the driven wheel (63) to rotate along the annular guide rail (64), so that the screw rod (3) rotates around the central slewing mechanism (7).
7. A coal flat bottom silo as defined in claim 1 wherein: the novel horizontal silo is characterized in that an annular protection brim (2) is arranged in the flat-bottom silo (1), the annular protection brim (2) is obliquely arranged and is arranged in a circle in the flat-bottom silo (1), the top end of the annular protection brim (2) is fixed on the side wall of the flat-bottom silo (1), the other end of the annular protection brim (2) is located above the spiral rod (3), and the rotation mechanism (5) and the revolution mechanism (6) are located below the annular protection brim (2).
8. A coal flat bottom silo as defined in claim 1 wherein: the coal unloading pits (4) are of strip-shaped hole structures arranged at intervals, and a coal gate plate is correspondingly arranged at the bottom of each coal unloading pit (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011230802.3A CN112239027A (en) | 2020-11-06 | 2020-11-06 | Flat-bottom coal silo |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011230802.3A CN112239027A (en) | 2020-11-06 | 2020-11-06 | Flat-bottom coal silo |
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| CN112239027A true CN112239027A (en) | 2021-01-19 |
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| CN202011230802.3A Pending CN112239027A (en) | 2020-11-06 | 2020-11-06 | Flat-bottom coal silo |
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| CN201023888Y (en) * | 2007-04-03 | 2008-02-20 | 朱耀平 | Flat bottom type bulk material silo |
| CN101823634A (en) * | 2009-11-12 | 2010-09-08 | 朱耀平 | Anti-hardening, anti-freeze and anti-locking method and device for silo buried revolving spiral |
| CN201842406U (en) * | 2010-10-19 | 2011-05-25 | 北京远东加大科技发展有限公司 | Material-taking arch-breaking and bottom-clearing machine at bottom of coal bunker |
| CN205345850U (en) * | 2015-08-21 | 2016-06-29 | 张铁铸 | Novel clear stifled mechanism of flyback formula |
| CN106081388A (en) * | 2016-07-14 | 2016-11-09 | 大唐环境产业集团股份有限公司 | Loose and removing device at the bottom of a kind of bulk material storehouse |
| CN205855031U (en) * | 2016-07-14 | 2017-01-04 | 大唐环境产业集团股份有限公司 | Loose and removing device at the bottom of a kind of bulk material storehouse |
| CN107640458A (en) * | 2017-08-28 | 2018-01-30 | 山西晋城无烟煤矿业集团有限责任公司 | Broken arch mechanism is brought down stocks in a kind of silo |
| CN109436599A (en) * | 2017-08-28 | 2019-03-08 | 吴万凯 | A kind of powder-material delivery device |
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2020
- 2020-11-06 CN CN202011230802.3A patent/CN112239027A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201023888Y (en) * | 2007-04-03 | 2008-02-20 | 朱耀平 | Flat bottom type bulk material silo |
| CN101823634A (en) * | 2009-11-12 | 2010-09-08 | 朱耀平 | Anti-hardening, anti-freeze and anti-locking method and device for silo buried revolving spiral |
| CN201842406U (en) * | 2010-10-19 | 2011-05-25 | 北京远东加大科技发展有限公司 | Material-taking arch-breaking and bottom-clearing machine at bottom of coal bunker |
| CN205345850U (en) * | 2015-08-21 | 2016-06-29 | 张铁铸 | Novel clear stifled mechanism of flyback formula |
| CN106081388A (en) * | 2016-07-14 | 2016-11-09 | 大唐环境产业集团股份有限公司 | Loose and removing device at the bottom of a kind of bulk material storehouse |
| CN205855031U (en) * | 2016-07-14 | 2017-01-04 | 大唐环境产业集团股份有限公司 | Loose and removing device at the bottom of a kind of bulk material storehouse |
| CN107640458A (en) * | 2017-08-28 | 2018-01-30 | 山西晋城无烟煤矿业集团有限责任公司 | Broken arch mechanism is brought down stocks in a kind of silo |
| CN109436599A (en) * | 2017-08-28 | 2019-03-08 | 吴万凯 | A kind of powder-material delivery device |
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Application publication date: 20210119 |