CN102758463A - Dedusting device of excavator - Google Patents
Dedusting device of excavator Download PDFInfo
- Publication number
- CN102758463A CN102758463A CN2012102575714A CN201210257571A CN102758463A CN 102758463 A CN102758463 A CN 102758463A CN 2012102575714 A CN2012102575714 A CN 2012102575714A CN 201210257571 A CN201210257571 A CN 201210257571A CN 102758463 A CN102758463 A CN 102758463A
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- Prior art keywords
- air
- dust
- chamber
- excavator
- filter chamber
- 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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- 239000000428 dust Substances 0.000 claims abstract description 105
- 238000001914 filtration Methods 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000000706 filtrate Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000008439 repair process Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a dedusting device of an excavator, which includes an air filter chamber, a dust collecting chamber and an air purifying chamber, wherein the air filter chamber is internally provided with a filter drum and an air purifying channel; a filter material for filtering the air is covered on the surface of the filter drum; the dust outlet of the air filter chamber is arranged at the lower part of the air filter chamber; the air inlet of the air filter chamber is communicated with and arranged at the upper part of the air filter chamber; the dust collecting chamber is communicated with and arranged under the dust outlet of the air filter chamber, and a dust collecting hopper for collecting dust is mounted in the dust collecting chamber; and the air purifying chamber is hermetically arranged on one sides of the air filter chamber and the dust collecting chamber, a centrifugal fan is mounted in the air purifying chamber, the air inlet of the centrifugal fan is communicated with the air purifying channel, and the air outlet is communicated with a shed of the excavator. The purified air penetrates the wall of the filter drum, enters the filter drum and enters the shed of the excavator through the air purifying channel under the action of the centrifugal fan, so as to effectively purify the air in the shed of the excavator.
Description
Technical field
The present invention relates to large excavator, especially with the large excavator canopy in dust removal by ventilation relevant.
Background technology
The operating environment of large excavator is relatively more abominable usually, and dust is very big, if do not take corresponding safeguard procedures, not only human pilot will receive very big physical impairment, but also can influence the running of component in the canopy.At present, current method is that the canopy to large excavator carries out dust removal by ventilation and handles, and makes to continue to be full of cleaned air passes in the canopy, get in the canopy with blocks dust gas, thus the human pilot of protection large excavator and the interior component of canopy.
Dust arrester structure such as Fig. 1 of the medium-and-large-sized excavator of prior art are said, and the shell 10 of dust arrester is fixedly mounted on the canopy of excavator, and air duct 11 is installed in the shell 10; In the air duct 11 axial flow blower is installed, axial flow blower top is air intake, and this air intake top is equipped with air intake cap 12; In the air intake inlet wind collecting unit is installed, the axial flow blower bottom is a cleaner, and the dust discharge road is installed below cleaner; Dust discharge road 13 is connected with the dust mouth, and it is outside that this dust mouth is communicated with the excavator canopy.This cleaner adopts gravitational dust collection, utilize dust at the volley inertia force greater than the effect of gas inertia power dust is separated from dusty gas.This cleaner adopts the louvered deduster; Promptly be designed to the filtering sheet, arrive rapidly within the air duct 11 in the louvered deduster when the air of dust-laden is drawn into by axial flow blower, dust is because the effect of inertia force; Grit is run into after the tilting blade, is just rebounded and separates with air.At this moment, most of air then flows out the slit between the cleaner blade.When flowing out when swerving the slit of air between blade, also produce a kind of centrifugal force still aerial dust throw in the main dirt stream and go.Air after being cleaned is blown into canopy, and the grit that has been separated is in company with just discharge from dust discharge road 13 of air in a small amount.The effect of the blade in the louvered deduster is the air-flow separated into two parts, and a part is a cleaned gas, accounts for 80～90% of gas gross.Concentrate the dust that is captured in another part, accounted for 10～20% of gas gross.
The shortcoming of prior art is:
1, the efficiency of dust collection of whole system is low, and the clean air cleanliness factor after the filtration of entering canopy is low, causes the interior dust of canopy bigger, influences the normal operation of component in the canopy.
2, air intake cap of the prior art is big and wide, and integral rigidity weakens, and dismounting inconvenience; In the use of excavator, because the frequent ventilating fan more of the higher need of fan trouble rate, more need lifting appliance could this air intake cap be dismantled during ventilating fan, be unfavorable for very much the maintenance and the maintenance of equipment.On the other hand, the blast cap of this form of structure can not stop rainwater to enter into system effectively, causes the blade generation corrosion of cleaner.
3, cleaner in use, its blade gathers more dust easily, and the position of blade and structure make and using on-the-spot its surperficial dust that is difficult to remove, and the dust that blade surface gathers greatly influences the filter capacity of cleaner.
Summary of the invention
To the problem that exists in the prior art, the object of the invention is the excavator dust arrester that a kind of simple in structure, easy to maintenance and good dedusting effect is provided.
For realizing above-mentioned purpose, technical scheme of the present invention is following:
A kind of excavator dust arrester comprises:
Air filter chamber; Said air filtration is indoor to be equipped with a plurality of filter cylinders; The air filtration that is installed in series of per two filter cylinders is indoor, and the barrel external surface is enclosed with the filtrate that is used for filtered air, the indoor pure qi (oxygen) passage that is communicated with space in the said filter cylinder tube that also is equipped with of said air filtration; The dust mouth of said air filter chamber is positioned at said air filter chamber bottom, and the air intake of said air filter chamber is arranged on said air filter chamber top;
Dust storage chamber, said dust storage chamber is arranged on the below of the dust mouth of said air filter chamber, and the dust hopper that is used to collect dust is installed in the said dust storage chamber, and said dust mouth is connected with said dust hopper;
Air-purifying chamber, said air-purifying chamber are arranged on said air filter chamber and said dust storage chamber one side, in the said air-purifying chamber centrifugal blower are installed, and the air intake of said centrifugal blower is communicated with said pure qi (oxygen) passage, and air outlet is communicated with the canopy of excavator.
Further, said pure qi (oxygen) passage is away from being equipped with the pulse backblowing device on the spatial axis direction in the tube of said filter cylinder, and the shower nozzle of said pulse backblowing device is corresponding one by one with the interior space of said filter cylinder tube.
Further, the air intake top of said air filter chamber is equipped with the blast cap that is used for rain cover.
Further, said blast cap inside is hollow, and the relative horizontal plane of external upper tilts to have certain angle.
Further, said blast cap both sides are welded with steel plate, and said steel plate profile is " TZ " type.
Further, said dust hopper lower part outlet place is equipped with the conveying worm that is used to discharge dust.
Further, on the position of said air filter chamber away from the corresponding said filter cylinder of a side of said pure qi (oxygen) passage the mounting cover that has handwheel that is easy to dismantle is installed.
Further, the position of the corresponding said centrifugal blower of said air-purifying chamber outer wall is equipped with the door of being convenient to keep in repair said centrifugal blower.
Beneficial effect of the present invention is; The present invention compared with prior art; When utilizing the present invention to carry out air filtration, airborne grit is deposited on the filtrate of filter cylinder external surface, and the grit when the filter cylinder surface deposits to a certain degree; Pulse backblowing through system is shaken off the grit on filter cylinder surface in dust storage chamber, is discharged to outside the excavator machine by conveying worm.And in the cartridge filter filtered air passes filter cylinder surface filtrate entering filter cylinder tube, under the centrifugal blower effect, pump in the excavator canopy behind the space; Make the air in the excavator canopy be purified effectively; It is high to adopt the present invention to filter air purity afterwards; Its purifying rate can reach 99.99%, for the normal operation of component in the canopy and the health of human pilot provide reliable assurance.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further explain:
Fig. 1 is the excavator dust arrester structural representation of prior art;
Fig. 2 is an excavator dust arrester structural representation of the present invention;
Fig. 3 is a dust removal part structural representation in the excavator dust arrester of the present invention;
Fig. 4 is an excavator dust arrester of the present invention installation site sketch map.
The specific embodiment
The exemplary embodiments that embodies characteristic of the present invention and advantage will be described in detail in following explanation.Be understood that the present invention can have various variations on various embodiment, its neither departing from the scope of the present invention, and explanation wherein and accompanying drawing be the usefulness of being used as explanation in itself, but not in order to restriction the present invention.
Like Fig. 2 and shown in Figure 3, excavator dust arrester 2 of the present invention comprises the closure casing 20 that is formed by connecting through support and sheet material, and these housing 20 bottoms are fixedly mounted on the top of excavator canopy through bolt and nut.These housing 20 inside are divided into three chambers, are respectively air filter chamber 21, dust storage chamber 22 and air-purifying chamber 23.Filled arrows is the mobile direction that purifies air among Fig. 3, and hollow arrow is the dust direction of falling.
Blast cap 24 is installed on the air intake of air filter chamber 21; Blast cap 24 mid portions are welded into tripod structure through shaped steel, and both sides are rigid backbone, and wallboard is installed in the periphery; Form inner hollow, the relative horizontal plane of external upper tilts to have the structure of certain angle.Blast cap 24 integral body are fixedly mounted on housing top through bolt and nut, and both sides are welded with steel plate, and the steel plate profile is " TZ " type.
A plurality of filter cylinders 211 and a pure qi (oxygen) passage are installed in the air filter chamber 21, and per two filter cylinders 211 are installed in series in air filter chamber 21, and the barrel external surface is enclosed with filtrate, and filtrate filters the dust laden air that gets into.Filter cylinder 211 1 ends are equipped with cover plate, and the other end is communicated with pure qi (oxygen) passage 214.Pure qi (oxygen) passage 214 is a side sidewall with the dividing plate 201 of air-purifying chamber 23, and in air filter chamber 21, adds wallboard along filter cylinder 211, in air filter chamber 21, to form an airtight passage.
On the locality in 211 interior spaces of sidewall 201 corresponding filter cylinders of pure qi (oxygen) passage 214, pulse backblowing device 212 is installed; This pulse backblowing device 212 has the shower nozzle 215 corresponding with per two one group filter cylinder 211; And this shower nozzle 215 is positioned at pure qi (oxygen) passage 214, and corresponding one by one with the interior space of the tube of each group filter cylinder 211.In addition, the opposite side of corresponding filter cylinder 211 is equipped with the cover plate that has handwheel 213 that is easy to convenient mounting or dismounting on the air filter chamber 21.
Air-purifying chamber 23 is positioned at a side of air filter chamber 21 and dust storage chamber 22, and and air filter chamber 21 between isolate through dividing plate 201 sealings.Fixed installation one centrifugal blower 231 in the air-purifying chamber 23, the air intake of this centrifugal blower is communicated with pure qi (oxygen) passage 214, and the air outlet of centrifugal blower 231 is communicated with the canopy of excavator.The position of the corresponding centrifugal blower 231 of air-purifying chamber 23 outer walls is equipped with a door, make centrifugal blower 231 be in to should door be convenient to keep in repair indoor.
Installation site of the present invention is as shown in Figure 4, and excavator dust arrester 2 of the present invention is positioned at the position after excavator canopy top is leaned on, and is communicated with the canopy of excavator through pipeline.When the present invention worked, the air that has dust was at first through blast cap 24, and the hollow and the three-legged structure of this blast cap 24 have guide functions, make things convenient for the entering of air.In addition, the incline structure on these blast cap 24 tops can conveniently be got rid of rainwater, avoids rainwater to get in the housing 20.Also be provided with tangible sign " TZ " (initial of too heavy phonetic) on this blast cap 24, be beneficial to identification.
The air that has dust gets into air filter chamber 21 through the water conservancy diversion of blast cap 24 and the air intake of process air filter chamber 21; When passing through air filter chamber 21, passes through air the comprehensive effect of Blang's diffusion and sieving etc.; Make airborne dust deposit on the filtrate on filter cylinder 211 surfaces; Thereby the grit in the filtered air reaches the effect that purifies air.Cleaned air passes gets into pure qi (oxygen) passage 214 simultaneously through space in the tube of filter cylinder 211 barrels entering filter cylinder 211 under the effect of centrifugal blower 231, the suction through centrifugal blower 231 gets in the canopy of excavator at last again.
In the process of filtered air; Because grit can be cumulative on the filtrate on filter cylinder 211 surfaces; Resistance to air increases, and when this resistance reaches a setting, need clear up the grit on the filtrate; This moment, the starting impulse back-blowing device 212; Pulse backblowing device 212 blows out the instantaneous high pressure air off and on through shower nozzle 215 in 211 interior spaces of filter cylinder, this instantaneous high pressure air outwards impacts through a plurality of gravity vents on filter cylinder 211 barrels in filter cylinder 211, and the grit on the filtrate is shaken.In addition; Filter cylinder 211 also needs periodic maintenance and nonperiodical repair; Therefore on the position of corresponding filter cylinder 211 cover plate that has handwheel 213 that conveniently is easy to dismantle is installed on the air filter chamber 21; Do not have between cover plate 213 and the filter cylinder 211 and block, can easily filter cylinder 211 be taken out from air filter chamber 21.
The grit that falls from the filtrate shake settles down under gravity and effect of inertia, gets into the dust hopper 221 of below.Dust hopper 221 is communicated with the dust mouth of air filter chamber 21 is airtight, prevents that dust from leaking.When the dust in the dust hopper 221 runs up to some, dust is discharged through conveying worm 222.
The power that air purification process air of the present invention flows provides by centrifugal blower 231 in the air-purifying chamber 23; Under the continuous running of centrifugal blower 231, purifying air in the excavator canopy constantly increases, when air capacity that the amount of purifying air that gets into is discharged greater than canopy; Can produce ultra-positive pressure in the canopy; Like this, extraneous dust gas just can not enter in the canopy, thereby realizes dust removal by ventilation.
Beneficial effect of the present invention is; The present invention compared with prior art; When utilizing the present invention to carry out air filtration, airborne grit is deposited on the filtrate on filter cylinder 211 surfaces, and the grit when the filter cylinder surface deposits to a certain degree; Pulse backblowing through system is shaken off the grit on filter cylinder surface in dust storage chamber 22; And after the filtrates that cartridge filter 211 filtered airs pass filter cylinder 211 surface get into 211 interior spaces of filter cylinder, pump in the excavator canopy down in centrifugal blower 231 effects, make that the air in the excavator canopy is purified effectively, adopt the air purity height of the present invention after filtering; Its purifying rate can reach 99.99%, for the normal operation of component in the canopy and the health of human pilot provide reliable assurance.
Technical scheme of the present invention is disclosed as above by preferred embodiment.Those skilled in the art should recognize change and the retouching of under the situation that does not break away from appended scope of the present invention that claim disclosed of the present invention and spirit, being done, and all belong within the protection domain of claim of the present invention.
Claims (8)
1. an excavator dust arrester is characterized in that, comprising:
Air filter chamber; Said air filtration is indoor to be equipped with a plurality of filter cylinders; Per two filter cylinders are installed in series indoor in air filtration, and the barrel external surface is enclosed with the filtrate that is used for filtered air, the indoor pure qi (oxygen) passage that is communicated with space in the said filter cylinder tube that also is equipped with of said air filtration; The dust mouth of said air filter chamber is positioned at said air filter chamber bottom, and the air intake of said air filter chamber is arranged on said air filter chamber top;
Dust storage chamber, said dust storage chamber is arranged on the below of the dust mouth of said air filter chamber, and the dust hopper that is used to collect dust is installed in the said dust storage chamber, and said dust mouth is connected with said dust hopper;
Air-purifying chamber, said air-purifying chamber are arranged on said air filter chamber and said dust storage chamber one side, in the said air-purifying chamber centrifugal blower are installed, and the air intake of said centrifugal blower is communicated with said pure qi (oxygen) passage, and air outlet is communicated with the canopy of excavator.
2. excavator dust arrester as claimed in claim 1 is characterized in that, on the spatial axis direction pulse backblowing device is installed in the tube of said per two filter cylinders, and the shower nozzle of said pulse backblowing device is corresponding one by one with the interior space of said filter cylinder tube.
3. excavator dust arrester as claimed in claim 1 is characterized in that, the air intake top of said air filter chamber is equipped with the blast cap that is used for rain cover.
4. excavator dust arrester as claimed in claim 3 is characterized in that, said blast cap inside is hollow, and the relative horizontal plane of external upper tilts to have certain angle.
5. excavator dust arrester as claimed in claim 4 is characterized in that, said blast cap both sides are welded with steel plate, and said steel plate profile is " TZ " type.
6. excavator dust arrester as claimed in claim 1 is characterized in that, said dust hopper lower part outlet place is equipped with the conveying worm that is used to discharge dust.
7. excavator dust arrester as claimed in claim 1 is characterized in that, said air filter chamber is equipped with the mounting cover that has handwheel that is easy to dismantle on the position away from the corresponding said filter cylinder of a side of said pure qi (oxygen) passage.
8. excavator dust arrester as claimed in claim 1 is characterized in that, the position of the corresponding said centrifugal blower of said air-purifying chamber outer wall is equipped with the door of being convenient to keep in repair said centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102575714A CN102758463A (en) | 2012-07-24 | 2012-07-24 | Dedusting device of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102575714A CN102758463A (en) | 2012-07-24 | 2012-07-24 | Dedusting device of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758463A true CN102758463A (en) | 2012-10-31 |
Family
ID=47053096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102575714A Pending CN102758463A (en) | 2012-07-24 | 2012-07-24 | Dedusting device of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758463A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039872A (en) * | 2016-07-26 | 2016-10-26 | 中煤平朔集团有限公司 | Dust removing device special for electric shovel cabin |
| CN106168042A (en) * | 2015-05-20 | 2016-11-30 | 住友建机株式会社 | Excavator |
| CN107604961A (en) * | 2017-10-27 | 2018-01-19 | 武汉理工大学 | A kind of suction-type excavator |
| CN108786287A (en) * | 2017-05-02 | 2018-11-13 | 久益环球地表采矿公司 | Air Filtration for Mobile Mining Machines |
| CN111962590A (en) * | 2020-08-27 | 2020-11-20 | 湖南一程智能科技有限公司 | Suction type excavating device and suction type excavating vehicle |
| CN112814068A (en) * | 2020-12-29 | 2021-05-18 | 太原重工股份有限公司 | Supercharging, ventilating and dust removing device of mining excavator |
| CN116356911A (en) * | 2023-03-10 | 2023-06-30 | 威尔登环保设备（长沙）有限公司 | Positive pressure dust-free ventilation and cooling system and excavator |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168042A (en) * | 2015-05-20 | 2016-11-30 | 住友建机株式会社 | Excavator |
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| CN108786287A (en) * | 2017-05-02 | 2018-11-13 | 久益环球地表采矿公司 | Air Filtration for Mobile Mining Machines |
| CN108786287B (en) * | 2017-05-02 | 2022-09-09 | 久益环球地表采矿公司 | Air filtration for mobile mining machines |
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| CN107604961A (en) * | 2017-10-27 | 2018-01-19 | 武汉理工大学 | A kind of suction-type excavator |
| CN111962590A (en) * | 2020-08-27 | 2020-11-20 | 湖南一程智能科技有限公司 | Suction type excavating device and suction type excavating vehicle |
| CN112814068A (en) * | 2020-12-29 | 2021-05-18 | 太原重工股份有限公司 | Supercharging, ventilating and dust removing device of mining excavator |
| CN116356911A (en) * | 2023-03-10 | 2023-06-30 | 威尔登环保设备（长沙）有限公司 | Positive pressure dust-free ventilation and cooling system and excavator |
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Application publication date: 20121031 |