CN108190452B - Telescopic coal dropping cylinder - Google Patents
Telescopic coal dropping cylinder Download PDFInfo
- Publication number
- CN108190452B CN108190452B CN201710966847.9A CN201710966847A CN108190452B CN 108190452 B CN108190452 B CN 108190452B CN 201710966847 A CN201710966847 A CN 201710966847A CN 108190452 B CN108190452 B CN 108190452B
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- CN
- China
- Prior art keywords
- coal dropping
- coal
- dropping cylinder
- cylinder
- limiting ring
- 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.)
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Links
- 239000003245 coal Substances 0.000 title claims abstract description 146
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 239000007858 starting material Substances 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 23
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 23
- 241001330002 Bambuseae Species 0.000 abstract description 23
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 23
- 239000011425 bamboo Substances 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002817 coal dust Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
- B65G47/44—Arrangements or applications of hoppers or chutes
-
- 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
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chutes (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The invention relates to a telescopic coal dropping cylinder, and belongs to the field of coal production. The technical scheme adopted by the invention is as follows: the telescopic coal dropping cylinder comprises a plurality of sections of coal dropping cylinders, wherein the coal dropping cylinders are in cylindrical structures, the inner and outer sections of the plurality of sections of coal dropping cylinders are nested, the diameters of the inner and outer nested coal dropping cylinders become larger gradually, and the inner and outer nested coal dropping cylinders are connected end to form the telescopic coal dropping cylinder; the vertical setting and stretch to the position junction of its upper and lower position of the coal fall section of thick bamboo of longest length and be equipped with the spacing ring, wherein the outside of bottom of upper coal fall section of thick bamboo is equipped with outside spacing ring, and the inside spacing ring of top inboard of below coal fall section of thick bamboo is equipped with outside spacing ring, and outside diameter of outside spacing ring is greater than inside diameter of inside spacing ring, and the coal fall section of thick bamboo that meets from top to bottom realizes the coal fall section of thick bamboo below of the coal fall section of thick bamboo support of top under the stop of spacing ring, and the coal fall section of thick bamboo of uppermost is fixed in the afterbody of conveyer and throws the coal below.
Description
Technical Field
The invention relates to a telescopic coal dropping cylinder, and belongs to the field of coal production.
Background
The coal storage yard is usually an open-air coal storage yard, raw coal produced underground is lifted to a wellhead from underground through a main well lifting machine, unloaded into a wellhead coal bin, screened by a vibrating screen at the bottom of the coal bin, and conveyed to the ground coal storage yard through a ground belt inclined gallery belt conveyor. The height of the belt chute raw coal falling mouth is 20 meters away from the ground, due to the height fall of 20 meters, more coal dust can be generated in the raw coal falling process, particularly, the amount of the generated coal dust is larger when the coal falling process encounters strong wind weather, so that not only is the waste of coal resources caused, but also the environmental pollution is caused, the company is actively responding to the national environmental protection requirement, dust suppression nets and dust prevention water spray are arranged around a coal storage yard in advance, and a haze gram is arranged, but the dust falling can only be passively carried out after the coal dust is taken by the measures above the height, and the serious coal dust problem still occurs.
Disclosure of Invention
The invention provides a telescopic coal dropping cylinder, which solves the problem of coal dust flying in the dropping process of coal.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the telescopic coal dropping cylinder comprises a plurality of sections of coal dropping cylinders, wherein the coal dropping cylinders are in cylindrical structures, the inner and outer sections of the plurality of sections of coal dropping cylinders are nested, the diameters of the inner and outer nested coal dropping cylinders become larger gradually, and the inner and outer nested coal dropping cylinders are connected end to form the telescopic coal dropping cylinder;
the vertical setting and stretch to the position junction of its upper and lower position of the coal fall section of thick bamboo of longest length and be equipped with the spacing ring, wherein the outside of bottom of upper coal fall section of thick bamboo is equipped with outside spacing ring, and the inside spacing ring of top inboard of below coal fall section of thick bamboo is equipped with outside spacing ring, and outside diameter of outside spacing ring is greater than inside diameter of inside spacing ring, and the coal fall section of thick bamboo that meets from top to bottom realizes the coal fall section of thick bamboo below of the coal fall section of thick bamboo support of top under the stop of spacing ring, and the coal fall section of thick bamboo of uppermost is fixed in the afterbody of conveyer and throws the coal below.
Preferably, the uppermost coal dropping cylinder is provided with a protruding outer limiting ring only at the outer edge of the lower part, the bottommost coal dropping cylinder is provided with an inner limiting ring only at the inner side of the top, and the middle coal dropping cylinder is provided with limiting rings at the inner side of the top end and the outer side of the lower end respectively.
Further preferably, the lowest coal dropping cylinder is connected with steel wire ropes at two sides, the steel wire ropes extend upwards, the coal dropping cylinder at the uppermost position is provided with pulleys, the steel wire ropes wind on the steel wire cylinder of the winch after bypassing the pulleys, the middle coal dropping cylinder is provided with a limiting ring at the top of the outer side, and the size outer diameter of the limiting ring is larger than the inner diameter of the limiting ring at the inner side of the top of the lower coal dropping cylinder.
Preferably, the coal dropping cylinder is sleeved in the anti-deflection protection device after being elongated, the anti-deflection protection device is a frame with a hole in the middle, the frame is fixed on a fixed building, and the minimum size of the hole in the middle of the anti-deflection protection device is larger than the maximum diameter of the coal dropping cylinder by 200mm, namely the deflection amount of the coal dropping cylinder is not more than 200mm.
Preferably, a limit travel switch is arranged at the position 300mm below the upper opening of the coal dropping cylinder at the uppermost position, and the limit travel switch is connected in series with a QBZ-80N vacuum electromagnetic starter switch.
Preferably, fixing plates are arranged around the top of the coal dropping cylinder at the uppermost position, the fixing plates are fixed on two parallel I-beams, the I-beams are fixed on a building, and inclined support rods are arranged at the lower parts of the two parallel I-beams.
The invention has the advantages that: the telescopic coal dropping cylinder is arranged at the coal dropping opening of the upper bin belt inclined gallery, the telescopic travel of the coal dropping cylinder is reasonably adjusted according to the height of the coal pile, the height difference between the coal dropping opening and the coal pile is reduced, the amount of coal dust is effectively reduced, and a good environment-friendly effect is achieved.
Drawings
Figure 1 is a schematic view of the overall structure of the present invention,
figure 2 is an enlarged view of a portion of the coal chute of the present invention at the upper and lower junction,
figure 3 is a structural diagram of the fixed position of the coal chute of the present invention,
fig. 4 is a circuit connection diagram of the limit switch of the present invention.
Reference numerals:
1 coal dropping cylinder 2 limit ring 3 wire rope 4 wire drum 5 deflection preventing protection device 6 limit travel switch 7 fixing frame 8 support rod 9 conveyor 10 coal block.
Detailed Description
The telescopic coal dropping cylinder comprises a plurality of sections of coal dropping cylinders, wherein the coal dropping cylinders are in cylindrical structures, the inner and outer sections of the plurality of sections of coal dropping cylinders are nested, the diameters of the inner and outer nested coal dropping cylinders become larger gradually, and the inner and outer nested coal dropping cylinders are connected end to form the telescopic coal dropping cylinder;
the vertical setting and stretch to the position junction of its upper and lower position of the coal fall section of thick bamboo of longest length and be equipped with the spacing ring, wherein the outside of bottom of upper coal fall section of thick bamboo is equipped with outside spacing ring, and the inside spacing ring of top inboard of below coal fall section of thick bamboo is equipped with outside spacing ring, and outside diameter of outside spacing ring is greater than inside diameter of inside spacing ring, and the coal fall section of thick bamboo that meets from top to bottom realizes the coal fall section of thick bamboo below of the coal fall section of thick bamboo support of top under the stop of spacing ring, and the coal fall section of thick bamboo of uppermost is fixed in the afterbody of conveyer and throws the coal below.
The uppermost coal dropping cylinder is only provided with a protruding outer limiting ring at the outer side edge of the lower part, the bottommost coal dropping cylinder is only provided with an inner limiting ring at the inner side of the top, and the middle coal dropping cylinder is respectively provided with a limiting ring at the inner side of the top end and the outer side of the lower end.
The wire rope is connected to the coal dropping cylinder of the lowest, and wire rope upwards extends, and the coal dropping cylinder of the highest position is equipped with the pulley, and wire rope winds around on the wire drum of winch after bypassing the pulley, and the coal dropping cylinder in the centre is equipped with the spacing ring at outside top, and this spacing ring size external diameter is greater than the inside spacing ring internal diameter of the top inboard of coal dropping cylinder of below.
The coal dropping cylinder is sleeved in the anti-deflection protection device after being elongated, the anti-deflection protection device is a frame with a hole in the middle, the frame is fixed on a fixed building, and the minimum size of the hole in the middle of the anti-deflection protection device is larger than the maximum diameter of the coal dropping cylinder by 200mm, namely the deflection amount of the coal dropping cylinder is not more than 200mm.
A limit travel switch is arranged at the position 300mm below the upper opening of the coal dropping cylinder at the uppermost position, and meanwhile, the limit travel switch is connected into the QBZ-80N vacuum electromagnetic starter switch in series.
The top of the coal dropping cylinder at the uppermost position is provided with fixing plates at the periphery, the fixing plates are fixed on two parallel fixing frames, the fixing frames are fixed on a building, and inclined supporting rods are arranged at the lower parts of the two parallel fixing frames.
Examples
According to the use condition of the coal dropping cylinder and the requirement of realizing the telescopic function, the shape and the processing material of the coal dropping cylinder have special requirements, the concrete structure is composed of three cylindrical cylinders with different diameters, the diameters of the coal dropping cylinders from bottom to top are respectively 700mm, 650mm and 600mm, and the length of each cylinder is 4m; in the processing material, the coal dropping cylinder must have better wear resistance, and the cylinder is processed by adopting a 16Mn steel plate with the thickness of delta 4mm so as to improve the service life of the cylinder.
According to the working principle of the coal dropping cylinder, a steel wire rope drawn by a driving device is only connected with a cylinder body with 700mm to drive the cylinder body with 700mm to move up and down, the movement of the other two cylinder bodies is required to be realized by means of a power source of the cylinder body with 700mm, the cylinder bodies with 600mm are arranged at the uppermost part according to the design and installation sequence, the diameters of the cylinder bodies from top to bottom are sequentially increased, therefore, according to the mutual installation position relation and movement principle between the three cylinder bodies, a circle of limiting ring is required to be welded at the inner part or the outer part of each cylinder body along the circumference of the cylinder body respectively, locking and linkage between the three cylinder bodies are realized by means of the limiting ring, and the limiting ring is welded at a position 100mm away from the upper opening or the lower opening of the cylinder body by using 16mm round steel, and the specific requirements are as follows: welding a limiting ring on the excircle of the lower opening of the cylinder body with the diameter of 600 mm; because the 650mm cylinder is arranged between the other two cylinders and is used for connecting the upper cylinder and the lower cylinder, the upper opening inner circle and the lower opening outer circle are respectively welded with limiting rings; limiting rings are respectively welded on the inner circle of the upper opening of the 700mm cylinder body, and steel wire rope connecting rings are respectively welded at the symmetrical positions of the lower part of the cylinder body.
The driving device must meet the requirements that the coal dropping cylinder realizes the movement in the extending and retracting directions, and simultaneously, the controlled extending and retracting speed of the coal dropping cylinder is not too high in order to ensure the safety and reliability of the extending and retracting function of the coal dropping cylinder, according to the requirements, a prop drawing winch with the speed of 0.12m/s is selected as a power source, and a QBZ-80N vacuum electromagnetic starter is used as a power switch; meanwhile, in order to ensure that the steel wire rope pulls the cylinder to stretch out and draw back, the cylinder is uniformly stressed, a circle of baffle plates are welded on the circumference of the middle line of the width of the cylinder of the prop drawing winch, and rope clamping holes are processed on the baffle plates, so that the first roller is changed into the second roller, namely, one roller simultaneously leads out two steel wire ropes to be symmetrically connected to the steel wire rope connecting ring of the 700mm cylinder, the uniform stress of the cylinder is ensured, and the stretching function is stable.
In order to prevent that operating personnel from stopping untimely in the operation period, because of artificial reasons appears, cause the coal dropping section of thick bamboo to promote the overwinding, appear breaking wire rope, the condition that falls the coal dropping section of thick bamboo falls, the design has installed spacing protection device, and concrete scheme is: a limit travel switch is arranged at the position 300mm below the upper opening of the cylinder body with 600mm at the uppermost part, and is connected in series into a control loop for controlling the lifting of the coal dropping cylinder by a QBZ-80N vacuum electromagnetic starter switch, when the coal dropping cylinder is lifted to a certain height and touches the limit travel switch, a control power supply is automatically powered off, the coal dropping cylinder stops moving, and the phenomenon of lifting overwinding is effectively solved.
Because the total length of the coal dropping cylinder is 12 meters, in order to prevent the phenomenon that the coal dropping cylinder is swayed and swayed too much in amplitude due to the influence of coal flow movement and strong wind weather, the frame type anti-deflection protection device is designed and installed, and the concrete scheme is as follows: a900 multiplied by 900mm square frame is welded by 120 channel steel, one end of an 11 # I-steel beam is fixed on a cement cross beam of a belt inclined gallery building upright post, the other end of the I-steel beam is welded with the square frame, when the stroke of a coal dropping cylinder is fully extended, the frame type deflection preventing protection device ensures that the deflection amount of a 700mm cylinder body is not more than 200mm in any condition, and ensures the use safety of the coal dropping cylinder.
Because the installation position of the coal dropping cylinder is about 20 meters away from the ground, the on-site condition and the use requirement are required to be combined to comprehensively consider various factors during installation, the fixing of the cylinder body with the uppermost part of 600mm is particularly important, and the safe use of the coal dropping cylinder can be fundamentally ensured only by well solving the problem. In combination with the site situation of our company, the uppermost 600mm cylinder is fixed by using two 11 # I-steel beams with the length of 8 meters as fixed supporting beams, the I-steel beams are fixed firmly by means of the cross beams on the cement upright posts of the belt chute building, diagonal bracing is added at the lower part to serve as reinforced supporting of the two 11 # I-steel beams, a supporting plate is welded on the outer circumference of the 600mm cylinder at intervals of 90 degrees, and the supporting plate is arranged on the I-steel beams and welded with the I-steel beams into a whole.
Claims (1)
1. The telescopic coal dropping cylinder is characterized by comprising a plurality of sections of coal dropping cylinders, wherein the coal dropping cylinders are in cylindrical structures, the inner sides and the outer sides of the plurality of sections of coal dropping cylinders are nested, the diameters of the inner and outer nested coal dropping cylinders are gradually increased from inside to outside, and the inner and outer nested coal dropping cylinders are connected in a tail-to-tail mode to form the telescopic coal dropping cylinder; the vertical coal dropping cylinder is provided with a limiting ring at the joint of the upper and lower positions of the coal dropping cylinder extending to the longest length, wherein the outer side of the bottom of the upper coal dropping cylinder is provided with an outer limiting ring, the inner side of the top of the lower coal dropping cylinder is provided with an inner limiting ring, the outer diameter of the outer limiting ring is larger than the inner diameter of the inner limiting ring, the upper and lower connected coal dropping cylinder is blocked by the limiting ring to realize that the upper coal dropping cylinder supports the lower coal dropping cylinder, and the uppermost coal dropping cylinder is fixed below the tail coal throwing of the conveyor; the coal dropping cylinder is sleeved in the anti-deflection protection device after being elongated, the anti-deflection protection device is a frame with a hole in the middle, the frame is fixed on a fixed building, and the minimum size of the hole in the middle of the anti-deflection protection device is larger than the maximum diameter of the coal dropping cylinder by 200mm, namely the deflection amount of the coal dropping cylinder is not more than 200mm; a limit travel switch is arranged at the position 300mm below the upper opening of the coal dropping cylinder at the uppermost position, and the limit travel switch is connected in series with a QBZ-80N vacuum electromagnetic starter switch;
the uppermost coal dropping cylinder is provided with a protruding outer limiting ring only at the outer side edge of the lower part, the bottommost coal dropping cylinder is provided with an inner limiting ring only at the inner side of the top, and the middle coal dropping cylinder is provided with limiting rings at the inner side of the top end and the outer side of the lower end respectively;
the lowest coal dropping cylinder is connected with steel wire ropes at two sides, the steel wire ropes extend upwards, the coal dropping cylinder at the uppermost position is provided with pulleys, the steel wire ropes wind around the steel wire cylinders of the winch after bypassing the pulleys, the middle coal dropping cylinder is provided with a limiting ring at the top of the outer side, and the size outer diameter of the limiting ring is larger than the inner diameter of the internal limiting ring at the inner side of the top of the lower coal dropping cylinder;
the top of the coal dropping cylinder at the uppermost position is provided with fixing plates at the periphery, the fixing plates are fixed on two parallel fixing frames, the fixing frames are fixed on a building, and inclined supporting rods are arranged at the lower parts of the two parallel fixing frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966847.9A CN108190452B (en) | 2017-10-17 | 2017-10-17 | Telescopic coal dropping cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966847.9A CN108190452B (en) | 2017-10-17 | 2017-10-17 | Telescopic coal dropping cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108190452A CN108190452A (en) | 2018-06-22 |
| CN108190452B true CN108190452B (en) | 2024-03-12 |
Family
ID=62572911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710966847.9A Active CN108190452B (en) | 2017-10-17 | 2017-10-17 | Telescopic coal dropping cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108190452B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07197028A (en) * | 1993-12-30 | 1995-08-01 | Nkk Corp | Method for charging coal into coke oven |
| CN2654564Y (en) * | 2003-09-12 | 2004-11-10 | 卞勇 | Coal block loading and weighing breaking proof device |
| CN101734494A (en) * | 2009-12-22 | 2010-06-16 | 山东大学 | Flexible telescopic type torbanite breakage preventing device |
| CN202186764U (en) * | 2011-07-29 | 2012-04-11 | 登封市君鑫煤业有限责任公司 | Adjustable inverted telescopic dust-proof device |
| CN104495425A (en) * | 2014-12-12 | 2015-04-08 | 中国能源建设集团安徽省电力设计院 | Three-stage coal drop pipe combination device with extending and contracting functions and automatic control method thereof |
| CN106865256A (en) * | 2017-04-12 | 2017-06-20 | 卢泉生 | It is a kind of to prevent coal from falling broken method |
| CN207632043U (en) * | 2017-10-17 | 2018-07-20 | 枣庄大兴矿业有限责任公司 | Extension type coal conduit |
-
2017
- 2017-10-17 CN CN201710966847.9A patent/CN108190452B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07197028A (en) * | 1993-12-30 | 1995-08-01 | Nkk Corp | Method for charging coal into coke oven |
| CN2654564Y (en) * | 2003-09-12 | 2004-11-10 | 卞勇 | Coal block loading and weighing breaking proof device |
| CN101734494A (en) * | 2009-12-22 | 2010-06-16 | 山东大学 | Flexible telescopic type torbanite breakage preventing device |
| CN202186764U (en) * | 2011-07-29 | 2012-04-11 | 登封市君鑫煤业有限责任公司 | Adjustable inverted telescopic dust-proof device |
| CN104495425A (en) * | 2014-12-12 | 2015-04-08 | 中国能源建设集团安徽省电力设计院 | Three-stage coal drop pipe combination device with extending and contracting functions and automatic control method thereof |
| CN106865256A (en) * | 2017-04-12 | 2017-06-20 | 卢泉生 | It is a kind of to prevent coal from falling broken method |
| CN207632043U (en) * | 2017-10-17 | 2018-07-20 | 枣庄大兴矿业有限责任公司 | Extension type coal conduit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108190452A (en) | 2018-06-22 |
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