CN102828461A - Milling machine and dust removing system thereof - Google Patents
Milling machine and dust removing system thereof Download PDFInfo
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- CN102828461A CN102828461A CN2012103356358A CN201210335635A CN102828461A CN 102828461 A CN102828461 A CN 102828461A CN 2012103356358 A CN2012103356358 A CN 2012103356358A CN 201210335635 A CN201210335635 A CN 201210335635A CN 102828461 A CN102828461 A CN 102828461A
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Abstract
The invention discloses a milling machine and a dust removing system thereof. The dust removing system comprises an air drafting device, a Venturi tube and a water spraying device, wherein the air drafting device is arranged in a dust absorption channel of the milling machine; an inlet of the Venturi tube is communicated with an air outlet of the air drafting device; and the water spraying device is used for feeding water to a throat section of the Venturi tube. The dust removing system of the milling machine is provided with the air drafting device used for in-drafting dust in the dust absorption channel and is further provided with the Venturi tube and the water spraying device both of which are communicated with the air outlet of the air drafting device. Liquid drips in the water spraying device enter the Venturi and are quickly atomized in the throat section of the Venturi tube; and the atomized water spray has higher dust removing efficiency. Compared with the prior art, the dust removing system has the following advantages of simple structure, no easiness for secondary dust flying, high dust removing efficiency easiness for maintenance.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of milling machine and dust pelletizing system thereof.
Background technology
Milling machine is the capital equipment of flexible pavement and cement pavement maintenance construction machinery, be mainly used in remove road surface concrete face gather around that bag, oil are unrestrained, reticulate pattern and rut etc.The old shop layer that uses the milling machine milling to damage; Re-laying new cotton is a kind of comparatively economic maintenance of surface method; Milling machine has advantages such as high efficiency, construction technology is simple, milling depth is easy to control, the old material of milling can directly reclaim in addition, makes milling machine in cities and towns town road and speedway maintenance project, have a wide range of applications.
The equipment of milling machine is made up of milling clamshell and milling hub, and it is installed on the below of frame, and the control with complete machine walking jacking system during work realizes feed and milling.Wherein, The milling hub is installed on the milling housing; The milling case forms a relative sealed space when work; Waste material under the milling in case by the milling hub to intermediate collection and through the material casting plate throwing on the milling hub to the machine of connecting material, then waste material is discharged from or sends into transfer car(buggy) after being transported to conveyer again.
Milling machine and all can produce a large amount of dusts in the defeated material process in milling process, in order to improve working environment, prior art mainly be to set up dust pelletizing system dust is handled.At present, dust pelletizing system commonly used mainly comprises the air intake device that is arranged in the dust absorption passage, and above-mentioned air-suction channel is the passage that is surrounded a relative closure by conveyer, the machine that connects material, milling case and ground jointly; Also comprise a filter (screen pack), the dust that air intake device sucks in the above-mentioned dust absorption passage is filtered by filter, realizes dedusting thus.
Adopt the defective of this kind dust pelletizing system to be: to need regularly filter to be cleared up,, stop up filtering holes, operate comparatively loaded down with trivial details to place dust like bath or mechanical shock etc.And for the higher filter of filtering accuracy, and cleaning is comparatively complicated.
Summary of the invention
In view of this, the present invention proposes a kind of milling machine dust pelletizing system and milling machine easy to clean.
On the one hand, the invention provides a kind of milling machine dust pelletizing system, comprising: air intake device is arranged in the dust absorption passage of said milling machine; Venturi tube, its inlet communicates with the air outlet of said air intake device; Water injector is used for sending water to the larynx section of said Venturi tube.
Further, said air intake device is axial flow blower or centrifugal blower.
Further, above-mentioned milling machine dust pelletizing system also comprises: be arranged at the sweep-up pipe between the inlet of air outlet and said Venturi tube of said air intake device.
Further, said Venturi tube is provided with conduction hole, and said conduction hole is arranged at the entrance or the contraction section of said Venturi tube; The water spray portion of said water injector is a bend pipe, and said bend pipe extends into said conduction hole, and points to the larynx section of said Venturi tube.
Further, state Venturi tube and be provided with conduction hole, said conduction hole is arranged at the larynx section of said Venturi tube; The water spray portion and the said conduction hole of said water injector are oppositely arranged.
On the other hand, a kind of milling machine of the present invention is provided with above-mentioned any milling machine dust pelletizing system.
Further, be provided with separating device in the conveyer of said milling machine, said separating device can barrier air but can not be stopped the milling material.
Further, said Venturi tube is arranged in the dedusting passage of said milling.
Further, the interior milling hub of milling case of said milling machine is pointed in the outlet of said Venturi tube.
Further, said water injector links to each other with the water pump of sprinkler system.
The present invention provides a kind of milling machine dust pelletizing system, and it is provided with the air intake device that is used to suck dust in the dust absorption passage, also is provided with the Venturi tube and the water injector that communicate with the air outlet of this air intake device.Drop in the water injector gets in the Venturi tube and in its larynx section and quickens atomizing, and the water smoke after the atomizing has higher efficiency of dust collection.With respect to prior art, above-mentioned dust pelletizing system has following advantage:
1, simple in structure, air-flow flows out back pressure from the larynx section to be decreased greatly, effectively reduces the gas flow rate of discharging from Venturi tube, prevents that gas is blown into generation reentrainment of dust in the dust absorption passage;
2, nebulization dust, efficiency of dust collection is high;
3, need not filter, can automatically cleaning, safeguard simple.
Milling machine provided by the invention has above-mentioned milling machine dust pelletizing system, because above-mentioned dust pelletizing system has above-mentioned technique effect, therefore, the milling machine that is provided with this dust pelletizing system also should possess above-mentioned advantage.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
The structural representation of the milling machine dust pelletizing system that Fig. 1 provides for the embodiment of the invention 1;
Fig. 2 is the structural representation of Venturi tube;
Fig. 3 is the position view that is provided with of water spray portion in the embodiment of the invention 1;
Fig. 4 is the position view that is provided with of water spray portion in another preferred embodiment of the present invention;
The structural representation of the milling machine that Fig. 5 provides for the embodiment of the invention 2;
The structural representation of conveyer in the milling machine that Fig. 6 provides for the embodiment of the invention 2;
Fig. 7 is that side seal board among Fig. 6 is along the schematic side view of A direction.
Description of reference numerals:
1 air intake device, 2 sweep-up pipes
3 Venturi tubes, 4 water injectors
41 water spray portions, 5 conveyers
The 6 machine 7 milling cases that connect material
8 milling hubs, 31 entrances
32 contraction sections, 33 larynx sections
34 diffusers, 51 defeated material belts
52 side seal boards, 53 cover plates
54 die mould angle steel, 55 separating devices
531 mounting holes
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the present invention can make up each other.
Basic thought of the present invention is: realize nebulization dust by Venturi tube and water injector, simplify follow-up cleaning process when improving efficiency of dust collection.
Below in conjunction with accompanying drawing, each preferred embodiment of the present invention is described further:
Fig. 1 to Fig. 4 shows the structure of the milling machine dust pelletizing system that the embodiment of the invention 1 provides, and this dust pelletizing system comprises:
Air intake device 1 is arranged in the dust absorption passage of milling machine;
Venturi tube 3, its inlet communicates with the air outlet of air intake device 1, and it is provided with conduction hole;
Sweep-up pipe 2 is arranged between the inlet of air outlet and Venturi tube 3 of air intake device 1.
Air intake device 1 in the above-mentioned dust pelletizing system is arranged in the dust absorption passage of milling machine, and this dust absorption passage is the passage that is surrounded a relative closure by the conveyer 5 of milling machine, the machine 6 that connects material, milling case 7 and ground jointly.This air intake device 1 is used to suck the interior dust of this passage so that carry out follow-up dust removal process.Particularly, this air intake device 1 can be axial flow blower or centrifugal blower.In above-mentioned dust absorption passage, the position is set specifically for air intake device 1, those skilled in the art can consider according to factors such as concrete operating mode, milling machine models, select to be easy to carry out the position of later stage maintenance and arrange.Can also be according to the position that is provided with of air intake device 1, at the air intake of air intake device 1 wind-collecting cover is set.
Sweep-up pipe 2 is arranged between the inlet of air outlet and Venturi tube 3 of air intake device 1, and it mainly plays a part to transmit air-flow, is used for adjusting the distance between air intake device 1 and the Venturi tube 3 according to the position that is provided with of air intake device 1 and Venturi tube 3.It will be appreciated by persons skilled in the art that when air intake device 1 and Venturi tube 3 the position is set when nearer, also sweep-up pipe 2 can be set.
Above-mentioned Venturi tube 3 communicates with the air outlet of air intake device 1, and it mainly act as: the dusty gas that air intake device 1 is sucked quickens in its larynx section 33, and then will fully atomize from the drop of water injector 4 ejections.Venturi effect (Venturi effect) is meant when fluid passes through the narrow of pipeline, can cause this place's fluid velocity to increase, and static pressure reduces simultaneously.Venturi tube makes according to Venturi effect, the principle of Venturi tube be steering current from the coarse to fine, to accelerate gas flow rate.
Particularly, the general structure of Venturi tube 3 is as shown in Figure 2, and the direction of arrow is airflow direction among the figure, and it comprises to exporting (blow-off outlet of air-flow) from inlet (air-flow be blown into mouthful) successively: entrance 31, contraction section 32, larynx section 33 and diffuser 34.The air-flow that sucks from air intake device 1 is blown into from the inlet of Venturi tube 3, quickens through larynx section 33, and it is maximum that gas velocity reaches, and generally can reach 50m/s ~ 80m/s.The drop of the ejection of water injector 4 is brought into the larynx section 33 of Venturi tube 3 by high-speed gas atomization and acceleration, and drop is atomized the back surface area to be increased, and dust is played fabulous suction-operated, and then realizes high-effective dust-removing.In addition, the air-flow in the Venturi tube 3 gets into diffuser 34 after larynx section 33 is quickened, and this moment, air pressure reduced rapidly, and air velocity also reduces accordingly, and the gas flow rate of therefore discharging from Venturi tube 3 outlets is lower, avoids causing reentrainment of dust thus.
In addition, conduction hole can also be arranged on the larynx section 33 of Venturi tube, specifically shown in 5; Water spray portion 41 is oppositely arranged with conduction hole; Near the larynx section 33 zone forms negative pressure, and the drop of water spray portion can be inhaled into larynx section 33 under action of negative pressure, and then drop is accelerated atomizing.For this kind mode, preferably a plurality of conduction holes circumferentially evenly are set on larynx section 33 edges of Venturi tube, corresponding, it is a plurality of that the number of water spray portion also should be.
Above-mentioned water injector 4 can be provided with preparatory water spray portion or preparatory water spray portion is not set, and those skilled in the art can select according to the flow velocity of air-flows in the Venturi tube 3.For example: when the air-flow in the Venturi tube 3 is enough big to producing siphonage during with the water sucking-off in the water injector 4, can not establish preparatory water spray portion.Otherwise, preparatory water spray portion then need be set.
The course of work of the dust pelletizing system that this enforcement provides is:
The gas that air intake device 1 sucks in the dedusting passage, gas can be inhaled in the air intake device 1 together with dust, and discharges from the air outlet of air intake device 1; The air-flow of discharging from air intake device 1 air outlet gets in the Venturi tube 3 via sweep-up pipe 2; The gases that get in the Venturi tube 3 are accelerated in larynx section 33, and also be brought into larynx section 33 from the drop of water injector 4 ejections and together quicken together with air-flow this moment under the effect of air-flow in Venturi tube 3, and drop is accelerated atomizing in the larynx section 33 of Venturi tube 3; Drip gauge area after the atomizing increases rapidly, and dust is had higher absorption affinity, plays the effect of high-effective dust-removing.
Further, the outlet of above-mentioned Venturi tube 3 also is arranged in the dust absorption passage, and the water smoke of discharging from Venturi tube 3 enters the effect that dust absorption passage plays final dusting again.Preferred, the milling hub 8 in the milling case 7 is pointed in the outlet of Venturi tube 3.It in the milling case 7 the maximum zone of amount of dust; The milling hub 8 in the milling case 7 is pointed in the outlet that Venturi tube 3 is set to; Can play inhibitory action to the dust in the milling case 7 on the one hand, on the other hand milling hub 8 and milling cutter thereof also played cooling effect.
In sum, be provided with the air intake device that is used to suck dust in the dust absorption passage in the milling machine dust pelletizing system that present embodiment provides, also be provided with the Venturi tube and the water injector that communicate with the air outlet of this air intake device.Drop in the water injector gets in the Venturi tube and in its larynx section and quickens atomizing, and the water smoke after the atomizing has higher efficiency of dust collection.Therefore, above-mentioned dust pelletizing system has following advantage:
1, simple in structure, the Venturi tube volume is little, and air-flow flows out back pressure from the larynx section to be decreased greatly, effectively reduces the gas flow rate of discharging from Venturi tube, prevents that gas is blown into generation reentrainment of dust in the dust absorption passage;
2, efficiency of dust collection is high;
3, need not filter, can automatically cleaning, safeguard simple.
The embodiment of the invention 2 also provides a kind of milling machine, specifically sees also Fig. 5, and this milling machine is provided with above-mentioned milling machine dust pelletizing system.
In order to prevent that the dusty gas in the dust absorption passage from leaking outside; The structure optimization of conveyer 5 is as shown in Figure 6; Its both sides (along the both sides of milling material transporting direction) at defeated material belt 51 are provided with side seal board 52; The top is provided with cover plate 53, and cover plate 53 links to each other with two side seal boards 52, and defeated thus material belt 51, side seal board 52 and cover plate 53 surround the defeated material passage of relative closure.Preferably, side seal board 52 is a softwood matter offset plate, and the defeated material belt 51 of abrasion resistance is poor, in order to prevent the defeated material belt 51 that in use weares and teares.Further, side seal board 52 is connected with cover plate 53 bolts through die mould angle steel 54, and the vertical mounting hole 531 (Fig. 6) that side seal board 52 is provided with after 52 wearing and tearing, can vertically be adjusted the position of side seal board 52, guarantees that side seal board 52 can closely be connected with defeated material belt 51.
In addition, the also defeated material of this conveyer passage is provided with separating device 55, this separating device can guarantee the milling material smooth delivery of power but can barrier air.Particularly, this separating device 55 can be the screen assembly, and milling material gravity is bigger, and is also bigger to the thrust of screen assembly, and transportation is continued in its lower end that can promote the screen assembly, and most of air-flow is then blocked by the screen assembly.
In order further to optimize dust removing effects, the outlet of the Venturi tube 3 in the above-mentioned dust pelletizing system also is arranged in the dust absorption passage, and the water smoke of discharging from Venturi tube 3 gets into the effect that dust absorption passage plays final dusting again.Preferred, the milling hub 8 in the milling case 7 is pointed in the outlet of Venturi tube 3.It in the milling case 7 the maximum zone of amount of dust; The milling hub 8 in the milling case 7 is pointed in the outlet that Venturi tube 3 is set to; Can play inhibitory action to the dust in the milling case 7 on the one hand, on the other hand milling hub 8 and milling cutter thereof had cooling effect.
Milling machine is equipped with sprinkler system usually, and it is provided with water tank and water pump, and water pump draws water from water tank then and to spray to the parts that need cooling through nozzle, like the milling hub etc., and then the higher parts of temperature is lowered the temperature.In this enforcement, the water injector 4 in the dust pelletizing system preferably links to each other with the water pump of sprinkler system, need not extra increase supply equipment thus, reduces the milling machine cost, improves the integrated level of each parts, reduces the occupation of land space of entire equipment.
The milling machine that present embodiment provides has above-mentioned arbitrary milling machine dust pelletizing system; Because above-mentioned any dust pelletizing system has above-mentioned technique effect; Therefore, the milling machine that is provided with this dust pelletizing system also should possess can not produce reentrainment of dust, efficiency of dust collection is high and safeguard simple advantage.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a milling machine dust pelletizing system is characterized in that, comprising:
Air intake device (1) is arranged in the dust absorption passage of said milling machine;
Venturi tube (3), its inlet communicates with the air outlet of said air intake device (1);
Water injector (4) is used for sending water to the larynx section (33) of said Venturi tube.
2. milling machine dust pelletizing system according to claim 1 is characterized in that, said air intake device (1) is axial flow blower or centrifugal blower.
3. milling machine dust pelletizing system according to claim 1 is characterized in that, also comprises:
Be arranged at the sweep-up pipe (2) between the inlet of air outlet and said Venturi tube (3) of said air intake device (1).
4. according to any described milling machine dust pelletizing system of claim 1 to 3, it is characterized in that said Venturi tube (3) is provided with conduction hole, said conduction hole is arranged at the entrance (31) or the contraction section (32) of said Venturi tube (3); The water spray portion (41) of said water injector (4) is a bend pipe, and said bend pipe extends into said conduction hole, and points to the larynx section (33) of said Venturi tube (3).
5. according to any described milling machine dust pelletizing system of claim 1 to 3, it is characterized in that state Venturi tube (3) and be provided with conduction hole, said conduction hole is arranged at the larynx section (33) of said Venturi tube (3); The water spray portion (41) of said water injector (4) is oppositely arranged with said conduction hole.
6. a milling machine is characterized in that, is provided with any described milling machine dust pelletizing system of claim 1 to 5.
7. milling machine according to claim 6 is characterized in that, is provided with separating device (55) in the conveyer of said milling machine (5), and said separating device (55) can barrier air but can not be stopped the milling material.
8. according to claim 6 or 7 described milling machines, it is characterized in that said Venturi tube (3) is arranged in the dedusting passage of said milling.
9. milling machine according to claim 8 is characterized in that, the interior milling hub (8) of milling case (7) of said milling machine is pointed in the outlet of said Venturi tube (3).
10. according to claim 6 or 7 described milling machines, it is characterized in that said water injector (4) links to each other with the water pump of sprinkler system.
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| CN201210335635.8A CN102828461B (en) | 2012-09-12 | 2012-09-12 | Milling machine and dust pelletizing system thereof |
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| CN201210335635.8A CN102828461B (en) | 2012-09-12 | 2012-09-12 | Milling machine and dust pelletizing system thereof |
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| CN102828461A true CN102828461A (en) | 2012-12-19 |
| CN102828461B CN102828461B (en) | 2015-10-28 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103194952A (en) * | 2013-04-19 | 2013-07-10 | 广西柳工机械股份有限公司 | Barrier remover of paver |
| CN108797291A (en) * | 2018-08-31 | 2018-11-13 | 王凌 | A kind of pavement milling machine dedusting removes milling waste material device |
| CN108999067A (en) * | 2018-08-09 | 2018-12-14 | 广东长宏公路工程有限公司 | A kind of milling machine of good dedusting effect |
| CN109914213A (en) * | 2019-04-04 | 2019-06-21 | 三一汽车制造有限公司 | Milling dust removal device and milling machine |
| CN110700058A (en) * | 2019-09-20 | 2020-01-17 | 南安市瑞竣机械科技有限公司 | Small concrete milling machine for construction machinery |
| CN111364931A (en) * | 2020-04-30 | 2020-07-03 | 中国葛洲坝集团第三工程有限公司 | Atomizing, dedusting and noise reducing system of down-the-hole drill and construction method |
| CN111495916A (en) * | 2020-04-29 | 2020-08-07 | 唐山大成路桥有限公司 | Dust collector of road surface milling machine |
| CN112275062A (en) * | 2020-10-28 | 2021-01-29 | 山东省大通公路工程有限责任公司 | Milling machine dust fall equipment of old road disease restoration construction usefulness |
| CN112746550A (en) * | 2019-10-31 | 2021-05-04 | 卡特彼勒路面机械公司 | Cold milling machine dust reduction system |
| CN115075104A (en) * | 2021-03-15 | 2022-09-20 | 北京天顺长城液压科技有限公司 | Pavement cleaning device for milling machine and milling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110700058A (en) * | 2019-09-20 | 2020-01-17 | 南安市瑞竣机械科技有限公司 | Small concrete milling machine for construction machinery |
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| CN111364931A (en) * | 2020-04-30 | 2020-07-03 | 中国葛洲坝集团第三工程有限公司 | Atomizing, dedusting and noise reducing system of down-the-hole drill and construction method |
| CN112275062A (en) * | 2020-10-28 | 2021-01-29 | 山东省大通公路工程有限责任公司 | Milling machine dust fall equipment of old road disease restoration construction usefulness |
| CN115075104A (en) * | 2021-03-15 | 2022-09-20 | 北京天顺长城液压科技有限公司 | Pavement cleaning device for milling machine and milling machine |
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| CN102828461B (en) | 2015-10-28 |
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