CN110937366A - Device with functions of eliminating falling material impact kinetic energy and material centering - Google Patents
Device with functions of eliminating falling material impact kinetic energy and material centering Download PDFInfo
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- CN110937366A CN110937366A CN201911418737.4A CN201911418737A CN110937366A CN 110937366 A CN110937366 A CN 110937366A CN 201911418737 A CN201911418737 A CN 201911418737A CN 110937366 A CN110937366 A CN 110937366A
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- 239000000463 material Substances 0.000 title claims abstract description 141
- 230000000979 retarding effect Effects 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 8
- 239000000428 dust Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 ore Substances 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 206010035148 Plague Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The utility model provides a have concurrently and eliminate falling material impact kinetic energy and material and transfer device of function, it relates to one kind and eliminates and strike the device of kinetic energy and transfer function, concretely relates to have concurrently and eliminate falling material impact kinetic energy and material and transfer the device of function. The invention aims to solve the problems of large blanking impact force and falling material deflection of hopper outlets of the existing loading station and the transferring station. The invention comprises at least one direction-adjusting baffle and at least one retarding baffle, wherein the direction-adjusting baffle is arranged in the outlet end of the hopper, the retarding baffles are symmetrically arranged at the inner side of the outlet end of the hopper, and the direction-adjusting baffle is positioned above the retarding baffles. The invention belongs to the field of machinery.
Description
Technical Field
The invention relates to a device for eliminating impact kinetic energy and adjusting the center, in particular to a device for eliminating impact kinetic energy of falling materials and adjusting the center of the falling materials, and belongs to the field of machinery.
Background
The conveying machinery represented by a belt conveyor is typical bulk material conveying equipment widely applied to production enterprises such as mines, docks, metallurgy, thermal power generation, chemical industry and the like, and the safe operation of the belt conveyor is an important guarantee for the normal production of the enterprises. In the process of conveying bulk materials such as coal, ore, fly ash and the like, the problems of damage to a conveying belt caused by impact of falling materials on the conveying belt and reduction of conveying capacity and material scattering caused by deviation of the conveying belt caused by deflection of the falling materials always plague the use safety of the belt conveyor.
The impact damage of falling materials to the conveyor belt is caused by one reason that the initial speed given by the upper-level belt conveyor is used for the materials; another reason is the gravitational acceleration caused by the fall of the upper and lower conveying devices; the reason for the deviation of the falling materials is that the flow direction of the falling materials at the outlet of the outlet channel box shows different outlet flow directions along with the change of the fall between the upper and lower-stage conveying equipment, the difference of the arrangement modes and the like; meanwhile, as the components, density, humidity, flow rate, viscosity and the like of the bulk materials such as coal, ore, fly ash and the like are dynamically changed in real time in actual operation, the changes can greatly influence the outlet flow direction of the materials. Therefore, even the same outlet pipe box is difficult to ensure the constant flow direction of the material outlet, and the conventional equipment is difficult to ensure that the material falls on the central position of the next-stage conveying belt in real time.
The prior known technical scheme which has the functions of eliminating impact kinetic energy of falling materials and adjusting the center of the falling materials mainly comprises two types: one is to replace the blanking pipe box with a curved chute, and the other is to install various types of turnable inclined baffles with external force. Among them, the biggest disadvantage of the curved chute method is that hopper blockage accidents easily occur, because when materials with high humidity and high viscosity are conveyed, the materials are easily adhered to the curved chute, and then the blockage accidents of the curved chute are caused. Therefore, the method has poor material universality and low applicability. And when the curve chute is too short, the functions of eliminating the impact kinetic energy of falling materials and adjusting the materials are greatly weakened.
The other method for installing the turnable inclined baffle with external force and holding the inclined baffle has the defects that the method only can play a role of slowing down the impact of materials in a small range, has weak effects of relieving and adjusting, and is easy to cause the blockage accident of the blanking pipe box. The reason is that the external force applied to the baffle is constant in operation regardless of whether the external force is applied from a heavy hammer, a support spring or other modes. When external force is applied and held greatly, the baffle is in a closed state directly because impact kinetic energy is too small, and even if the flow of the materials is increased and the impact kinetic energy is increased later, the baffle is kept in the closed state because the isolation of the materials accumulated previously is relieved until the materials are blocked; when the external force is kept small, the baffle is kept in a large opening state by overlarge impact kinetic energy, most of materials pass over the baffle and directly fall onto the conveying belt, and therefore the functions of eliminating impact kinetic energy of falling materials and adjusting the materials are basically lost. Therefore, the method has weak effect of practically eliminating the impact kinetic energy of falling materials and poor material centering function.
In addition, a method for installing a plurality of direction-adjusting baffles, a method for installing a plurality of layers of retarding baffles, a method for installing a loop line chute and a method for installing a plurality of layers of suspending retarding blocks are provided, and the 4 different technical schemes only have the function of partially eliminating the impact kinetic energy of falling materials and have no material centering function. Simultaneously because these technical scheme have either added polylith baffle, have installed the chute additional or have added multilayer and hinder the material piece in blanking pipe case, all make the material flow cross-section show and reduce, the trafficability characteristic of material worsens to greatly increased blanking pipe case jam accident's probability. Therefore, the method has poorer material universality and lower applicability.
In addition, the method of using the buffer bed has no material centering function and has little protection effect on the conveying belt; the reason for this is that the buffer bed is installed below the conveyor belt, and the impact kinetic energy of the material is not slowed down in front of the conveyor belt.
Disclosure of Invention
The invention aims to solve the problems of large blanking impact force and deflection of falling materials at the hopper outlets of the existing loading station and the transferring station, and further provides a device with the functions of eliminating impact kinetic energy of the falling materials and centering the materials.
The technical scheme adopted by the invention for solving the problems is as follows: the invention comprises at least one direction-adjusting baffle and at least one retarding baffle, wherein the direction-adjusting baffle is arranged in the outlet end of the hopper, the retarding baffles are symmetrically arranged at the inner side of the outlet end of the hopper, and the direction-adjusting baffle is positioned above the retarding baffles.
Furthermore, the at least one centering baffle is vertically arranged, and the upper end of the centering baffle is fixedly connected with the retarding baffle.
Further, the distance between the direction-adjusting baffle and the retarding baffle is 1-2 m.
Furthermore, the surface area of the direction-adjusting baffle is 20-40% of the outlet area of the hopper.
Furthermore, the included angle between the direction-adjusting baffle plate and the horizontal plane is 0-30 degrees.
Furthermore, the included angle between the surface of the retarding baffle and the inner wall of the hopper is 45-105 degrees.
Furthermore, the surface area of the retarding baffle is 20-40% of the outlet area of the hopper.
Further, the verticality deviation of the centering baffle is less than 30 degrees.
Further, the length of the centering baffle is not less than 200 mm.
Furthermore, the lengths of the direction-adjusting baffle, the retarding baffle and the centering baffle are not less than 300 mm.
The invention has the beneficial effects that: 1. the invention has very outstanding effect of eliminating material impact: the reason is as follows: after the method of installing the direction-adjusting baffle, the retarding baffle and the centering baffle is applied, the materials are continuously turned and collided for at least 3 times at large angles, and a large part of impact kinetic energy of the materials is gradually dispersed and eliminated; secondly, the design of the blocking baffle plate enables the materials to form a continuously flowing and soft material stacking layer on the blocking baffle plate, and plays a prominent and obvious role in relieving the impact of subsequent materials; thirdly, due to the existence of the material retardation layer, the subsequent materials flow over the material retardation layer, and the larger frictional resistance plays a good role in further relieving the impact kinetic energy of the materials; fourthly, the design of the centering baffle plate enables the final residual impact kinetic energy of the material to be eliminated by collision or opposite collision at the outlet at the tail end;
2. the invention has obvious effect of centralizing and centering falling materials: the reason is as follows: firstly, after the method of installing the direction-adjusting baffle, the retarding baffle and the centering baffle is applied, the impact kinetic energy of falling materials is relieved to the greatest extent, so that the capability and the foundation of changing the direction of the materials at an outlet at the tail end again are eliminated; secondly, the strong centering limiting action of the retarding baffle and the centering baffle ensures that the material can only and uniquely flow out from the channel in the middle;
3. the invention has very obvious effect of eliminating falling material dust: the reason is as follows: firstly, the root cause of dust of falling materials is the impact of the falling materials; secondly, after the method of installing the direction-adjusting baffle, the retarding baffle and the centering baffle is applied, all impact kinetic energy of falling materials is basically eliminated, so that the materials fall on a conveying belt at a very low flow speed and minimum impact kinetic energy, and the generation of dust of the falling materials is eliminated;
4. the invention does not increase the possibility of hopper blockage: the reason is as follows: the method and the device are completely applied to the tail end of the outlet pipe box, the integral structures of other blanking pipe boxes are not changed, and all impact kinetic energy of materials is reserved; secondly, the vertical and horizontal size of the minimum section of the outlet channel box is at least 2.5 times of the size of the section required by the maximum flow of the system in design, namely the actual output of the outlet channel box is at least 6 times of the designed output. The direction-adjusting baffle, the retarding baffle and the centering baffle which are additionally arranged in the invention have simple structures, can ensure that the diameter of a flow section is far larger than the diameter of a maximum material block which can appear, and can also ensure that the actual output of an outlet pipe box at least reaches more than 2 times of the designed maximum flow. The design of the maximum material and the smooth passing of the maximum material flow can be completely ensured; so that the possibility of hopper blockage does not occur;
3. the invention has the best general performance and applicability to materials: the reason is that: the method and the device can ensure that the material block with the maximum diameter can smoothly pass through, can also ensure that the material block with the maximum material flow can smoothly pass through, have no selectivity on the applicable materials, and have the best material universality and applicability;
4. the invention has very remarkable protection effect on the conveyor: the reason is that: the method and the device can well eliminate the impact kinetic energy of falling materials, reliably realize the function of centering the materials and completely avoid the damage to the conveyor, so the invention has very obvious protection effect on the conveyor.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
description of reference numerals: 1, adjusting a direction baffle; 2 blocking the baffle; 3, a hopper; 4, conveying a belt; 5-focus baffle.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1, and the device having the functions of eliminating the impact kinetic energy of falling materials and centering materials in the embodiment includes at least one direction-adjusting baffle 1 and at least one retarding baffle 2, the direction-adjusting baffle 1 is disposed in the outlet end of the hopper 3, the retarding baffles 2 are symmetrically disposed on the inner side of the outlet end of the hopper 3, and the direction-adjusting baffle 1 is located above the retarding baffles 2. Other components and connections are the same as those in the first embodiment.
The second embodiment is as follows: the embodiment is described with reference to fig. 1, and the apparatus having both functions of eliminating impact kinetic energy of falling materials and centering materials in the embodiment further includes at least one centering baffle 5, the centering baffle 5 is vertically disposed, and the upper end of the centering baffle 5 is fixedly connected to the retarding baffle 2. Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1, and the distance H between the direction-adjusting baffle 1 and the retarding baffle 2 of the device having both the function of eliminating the impact kinetic energy of the falling material and the function of centering the material in the present embodiment is 1 to 2 meters. Other components and connections are the same as those in the first embodiment.
The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 1, and the surface area of the direction-adjusting baffle 1 of the device having both the function of eliminating the impact kinetic energy of the falling material and the function of adjusting the material center in the present embodiment is 20% to 40% of the outlet area of the hopper 3. Other components and connections are the same as those in the first embodiment.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the angle a between the direction-adjusting baffle 1 and the horizontal plane of the device of the present embodiment, which has both the function of eliminating the impact kinetic energy of falling materials and the function of adjusting the center of falling materials, is 0 to 30 °. Other components and connections are the same as those in the first embodiment.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1, and the angle C between the surface of the retarding baffle 2 and the inner wall of the hopper 3 of the device of the present embodiment, which has both the function of eliminating the impact kinetic energy of the falling material and the function of centering the material, is 45 ° to 105 °. Other components and connections are the same as those in the first embodiment.
The seventh embodiment: the present embodiment will be described with reference to fig. 1, and the surface area of the retarding damper 2 of the device of the present embodiment having both the function of eliminating the impact kinetic energy of the falling material and the function of material centering is 20% to 40% of the outlet area of the hopper 3. Other components and connections are the same as those in the first embodiment.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 1, and the verticality deviation of the centering baffle 5 of the device having both the function of eliminating the impact kinetic energy of falling materials and the function of centering materials in the present embodiment is less than 30 °. Other components and connection relationships are the same as those in the second embodiment.
The specific implementation method nine: the present embodiment is described with reference to fig. 1, and the length L of the centering baffle 5 of the device having both the function of eliminating the impact kinetic energy of the falling material and the function of centering the material in the present embodiment is not less than 200 mm. Other components and connection relationships are the same as those in the second embodiment.
The detailed implementation mode is ten: the present embodiment is described with reference to fig. 1, and the lengths of the direction-adjusting baffle 1, the retarding baffle 2 and the centering baffle 5 of the device having both the function of eliminating the impact kinetic energy of falling materials and the function of centering materials in the present embodiment are not less than 300 mm. Other components and connection relationships are the same as those in the first or second embodiment.
Principle of operation
The materials falling from the hopper 3 at the outlet firstly impact the direction-adjusting baffle 1, the direction-adjusting baffle 1 firstly relieves the impact kinetic energy of the materials, and the materials are redirected and shunted, so that the materials flow to the outlet from the direction-adjusting baffle 1 and fall along the side wall of the outlet; then the material moves downwards and impacts the retarding baffle 2, and the retarding baffle 2 relieves the impact kinetic energy of the material for the second time; then the material forms a continuously flowing and soft material stacking layer on the retarding baffle plate and is used for relieving the impact kinetic energy of the subsequent material to the maximum extent; the existence of the material accumulation layer on the retarding baffle plate ensures that the subsequent materials flow over the retarding baffle plate and are inevitably subjected to larger frictional resistance, so that the impact kinetic energy of the materials is eliminated and relieved again; the design of the centering baffle plate enables the final residual impact kinetic energy of the material to be eliminated by collision or opposite collision at the outlet at the tail end; meanwhile, the impact kinetic energy of falling materials is relieved to the maximum extent, the capability and the foundation of changing the direction of the materials at the outlet at the tail end are eliminated, and the strong centering limiting action of the blocking baffle and the centering baffle is retarded, so that the materials can only and uniquely flow out from the channel in the middle; finally, the problem of falling material dust is also controlled to a great extent, since the root cause of dust generation, which is the impact kinetic energy of the falling material, is eliminated.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a have the device that eliminates falling material impact kinetic energy and material accent function concurrently which characterized in that: the device with the functions of eliminating falling material impact kinetic energy and centering materials comprises at least one direction-adjusting baffle (1) and at least one retarding baffle (2), wherein the direction-adjusting baffle (1) is arranged in an outlet end of a hopper (3), the retarding baffles (2) are symmetrically arranged on the inner side of the outlet end of the hopper (3), and the direction-adjusting baffle (1) is positioned above the retarding baffles (2).
2. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 1, is characterized in that: the device with the functions of eliminating falling material impact kinetic energy and adjusting material center also comprises at least one center-focusing baffle (5), wherein the center-focusing baffle (5) is vertically arranged, and the upper end of the center-focusing baffle (5) is fixedly connected with the retarding baffle (2).
3. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 1, is characterized in that: the distance (H) between the direction-adjusting baffle (1) and the retarding baffle (2) is 1-2 m.
4. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 1, is characterized in that: the surface area of the direction-adjusting baffle (1) is 20-40% of the outlet area of the hopper (3).
5. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 1, is characterized in that: the included angle (A) between the direction-adjusting baffle (1) and the horizontal plane is 0-30 degrees.
6. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 1, is characterized in that: the included angle (C) between the surface of the retarding baffle (2) and the inner wall of the hopper (3) is 45-105 degrees.
7. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 1, is characterized in that: the surface area of the retarding baffle (2) is 20 to 40 percent of the outlet area of the hopper (3).
8. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 2 is characterized in that: the verticality deviation of the centering baffle (5) is less than 30 degrees.
9. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 2 is characterized in that: the length (L) of the centering baffle (5) is not less than 200 mm.
10. The device for eliminating the impact kinetic energy of falling materials and adjusting the center of the falling materials according to claim 1 or 2 is characterized in that: the lengths of the direction-adjusting baffle (1), the retarding baffle (2) and the centering baffle (5) are not less than 300 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418737.4A CN110937366A (en) | 2019-12-31 | 2019-12-31 | Device with functions of eliminating falling material impact kinetic energy and material centering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418737.4A CN110937366A (en) | 2019-12-31 | 2019-12-31 | Device with functions of eliminating falling material impact kinetic energy and material centering |
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| CN110937366A true CN110937366A (en) | 2020-03-31 |
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| CN201911418737.4A Pending CN110937366A (en) | 2019-12-31 | 2019-12-31 | Device with functions of eliminating falling material impact kinetic energy and material centering |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201647635U (en) * | 2010-04-27 | 2010-11-24 | 贵阳铝镁设计研究院 | Material adjusting device |
| CN203946568U (en) * | 2014-06-16 | 2014-11-19 | 徐工集团工程机械股份有限公司 | Material receiving device and belt conveyer |
| CN204369056U (en) * | 2014-12-16 | 2015-06-03 | 铜陵天奇蓝天机械设备有限公司 | Belt conveyer discharge funnel |
| CN106185257A (en) * | 2016-07-14 | 2016-12-07 | 珠海三港口机械有限公司 | Hopper, material transfer device, bucket-wheel stacker reclaimer |
| CN208022322U (en) * | 2018-02-11 | 2018-10-30 | 中冶北方（大连）工程技术有限公司 | Ribbon conveyer reprinting head funnel |
| CN211997605U (en) * | 2019-12-31 | 2020-11-24 | 胡一宝 | Device with functions of eliminating falling material impact kinetic energy and material centering |
-
2019
- 2019-12-31 CN CN201911418737.4A patent/CN110937366A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201647635U (en) * | 2010-04-27 | 2010-11-24 | 贵阳铝镁设计研究院 | Material adjusting device |
| CN203946568U (en) * | 2014-06-16 | 2014-11-19 | 徐工集团工程机械股份有限公司 | Material receiving device and belt conveyer |
| CN204369056U (en) * | 2014-12-16 | 2015-06-03 | 铜陵天奇蓝天机械设备有限公司 | Belt conveyer discharge funnel |
| CN106185257A (en) * | 2016-07-14 | 2016-12-07 | 珠海三港口机械有限公司 | Hopper, material transfer device, bucket-wheel stacker reclaimer |
| CN208022322U (en) * | 2018-02-11 | 2018-10-30 | 中冶北方（大连）工程技术有限公司 | Ribbon conveyer reprinting head funnel |
| CN211997605U (en) * | 2019-12-31 | 2020-11-24 | 胡一宝 | Device with functions of eliminating falling material impact kinetic energy and material centering |
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