EP3512644A1 - Screening machine for separating coarse material and fine material from excavated earth - Google Patents
Screening machine for separating coarse material and fine material from excavated earthInfo
- Publication number
- EP3512644A1 EP3512644A1 EP17767813.3A EP17767813A EP3512644A1 EP 3512644 A1 EP3512644 A1 EP 3512644A1 EP 17767813 A EP17767813 A EP 17767813A EP 3512644 A1 EP3512644 A1 EP 3512644A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screening machine
- conveyor
- machine according
- drivers
- spoon
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000012216 screening Methods 0.000 title claims abstract description 35
- 238000000926 separation method Methods 0.000 claims description 15
- 238000009412 basement excavation Methods 0.000 claims description 9
- 239000000969 carrier Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000010413 gardening Methods 0.000 description 2
- 239000003864 humus Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/02—Apparatus for grading using pockets for taking out particles from aggregates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
- B07B13/05—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size using material mover cooperating with retainer, deflector or discharger
Definitions
- the invention relates to a screening machine for the separation of coarse and fine material from excavated earth.
- the invention further relates to an attachment for an earth-moving machine with such a screening machine.
- soils e.g. for filling pipe trenches or covering cables
- sill work on the construction site e.g. for filling pipe trenches or covering cables
- These are essentially used to keep stones away from the earth, in order to prevent damage to the pipes or cables.
- sieving for the processing of near-surface soils is becoming increasingly important.
- conventional screening plants it is known to set a formed by a grid, holes or mesh screen vibrating and separated by the vibration generated Siebgut.
- this is problematic in cohesive material such as humus from excavation, which often glued to the grid and then can not be separated.
- the drivers are guided over a deflection roller of the conveyor which is arranged downstream of the picking rake, wherein the fine material can be ejected from the receiving spaces on the deflection roller and can be reused if necessary.
- An advantageous embodiment of a stationary arrangement provides that a hopper for excavating the earth is arranged on the conveyor. In this way, the screenings can also be added in portions and simply filled.
- a particularly favorable construction for the separation of material to be conveyed provides that the drivers each comprise a toothed strip, wherein the toothed racks are aligned transversely to the orbit of the conveyor and point with their teeth away from the orbit to the outside.
- a particularly advantageous embodiment provides that the direction of rotation of the conveyor is reversible. Thus, even in the case of a wedging of material by reversing the operation is maintained.
- a particularly simple drive system provides that a hydraulically or electrically operating motor is coupled to a deflection roller of the conveyor.
- Another aspect of the invention relates to an attachment for a Erdbauma- machine, in particular an excavator, with a grave spoon and arranged on the grave spoon screening machine according to the invention.
- the material can be added and fines are screened out in a workflow.
- the retained coarse material can be brought together in a simple manner for removal.
- a structurally simple variant provides that the screening machine is arranged fixed in an open back region of the grave spoon opposite the grave opening.
- Fig. 4 is a stocked with a sifting grave scoop for an earthmoving machine in perspective view.
- the screening machine 10 shown in Fig. 1 allows the separation of coarse and fine material from excavation, as obtained for example in gardening and landscaping in the design of near-surface earth.
- the coarse material is often formed by removing stones or root pieces, while humus is reusable as fine material.
- a can be acted upon with the Erdaushub conveyor 12 is provided, which has a plurality of consecutively running drivers 14 for delimiting receiving spaces 16 for the fines, wherein at least one separation point 18 a fixed picking rake 20, the coarse material the passing drivers 14 decreases.
- a downwardly tapering feed hopper 22 is provided to give up the excavation targeted to the conveyor 12.
- the device 10 can be operated stationary on a frame, not shown.
- the conveyor 12 has an upper run or receiving means 24, which is acted upon by the excavation 22, for example, via the funnel 22, and a lower run or return run 26 and two guide rollers 28.
- An example designed as an electric or hydraulic motor 30 drive of the conveyor 12 is coupled to one of the deflection rollers 28, as is symbolically illustrated in Fig. 1. In this case, the motor 30 is reversible in its direction of rotation, so that the circulation of the conveyor 12 can be reversed.
- a picking rake 20 is expediently arranged at the two ends of the receiving space 24 or in front of the two deflection rollers 28, wherein the picking racks 20 may optionally have different returnable sizes for the coarse goods, as explained in more detail below.
- a knife-like crushing bar 32 may be provided which protrudes with its edge just above the driver 14 and separates the remaining material.
- the drivers 14 are formed as projecting members of an endless link belt 34 of the conveyor 12. This is realized in that the drivers 14 each comprise an angled rack 36, wherein the toothed racks 36 are aligned transversely to the orbit and transport direction and point with their teeth 38 away from the orbit to the outside.
- the picking rakes 20 engage in the spaces between the teeth 38 of each driver 14.
- the picking rakes 20 have a plurality of guide bars 40, which extend continuously between the separating points 20 below the free ends of the teeth 38.
- the guide rods 40 are angled upwards relative to the circulation path or the upper run 24, so that a run-on slope for the coarse material results.
- the remaining in the receiving spaces 16 fine material passes through the picking rake 20 and is ejected at the downstream in the transport direction pulley 28. This is assisted by the receiving spaces 16 (see FIG. 3) which increase in the deflection region and by centrifugal forces which occur.
- the guide rods 40 need not engage in every gap between the teeth 38, so that the sieve size can be varied or adapted to a desired minimum grain size of the coarse material. It is also conceivable that the two picking rakes 20 have mutually different screen sizes and may not intervene in the upper run 24.
- the carrier 14 made of angle profiles are fixed to a chain drive 42, which runs on the guide rollers 28 via gears 44.
- the chain drive 42 comprises two parallel circulating chains, with the members of which the drivers 14 are firmly connected at their end portions.
- FIG. 4 shows an exemplary embodiment with a screening machine 10 on a grave spoon 46.
- the screening machine 10 has essentially the same structure as the stationary variant described above.
- a combined attachment or working tool for an earth-moving machine such as an excavator is realized so that grave or excavation and Siebfor can be performed mobile.
- the grave spoon 46 is connected via a quick-change device 48 with the free end of the excavator handle.
- a hydraulic pivot drive 50 is arranged on the upper boundary wall of the spoon 46, which allows a pivoting movement of the screening machine 10 against the opening 52 of the spoon 46.
- soil can be dug off, while the picked-up material can be screened out when the screening machine 10 is tilted, in which case the spoon 46 fulfills the function of the charging chute 22.
- the screening machine 10 is oriented in operation so that the excavated earth or the material to be separated flows under gravity forces in kg on the upper strand 24.
- the distances between the drivers 14 are so dimensioned that the coarse material can not penetrate into the receiving spaces 16, but remains on the drivers 14 on top.
- the fines fills the receiving spaces 16.
- the driver 14 is prevented by the lying in the transport path supporting leg that the fines can pass directly through the upper strand 24.
- the coarse material is removed from the drivers 14, while the fines are transported further and ejected in the deflection.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016117256.1A DE102016117256A1 (en) | 2016-09-14 | 2016-09-14 | Screening machine for separating coarse and fine material from excavated earth |
PCT/EP2017/072899 WO2018050640A1 (en) | 2016-09-14 | 2017-09-12 | Screening machine for separating coarse material and fine material from excavated earth |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3512644A1 true EP3512644A1 (en) | 2019-07-24 |
EP3512644B1 EP3512644B1 (en) | 2022-05-11 |
Family
ID=59859084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17767813.3A Active EP3512644B1 (en) | 2016-09-14 | 2017-09-12 | Screening machine for separating coarse material and fine material from excavated earth |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3512644B1 (en) |
DE (1) | DE102016117256A1 (en) |
WO (1) | WO2018050640A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111774288B (en) * | 2020-07-15 | 2022-04-12 | 江苏辉通检测有限公司 | Material receiving device of accelerated polishing machine |
CN112720271B (en) * | 2020-12-30 | 2023-03-24 | 台州市瑞达机械有限公司 | Shot blasting machine for producing relay valve cover |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB275380A (en) * | 1926-06-23 | 1927-08-11 | John Frederick Bishop | Improvements in machines or methods of separating rubble, such as strings, straws, sticks and the like from grain or granular material |
US2116006A (en) * | 1936-06-17 | 1938-05-03 | Thys Edouard | Hop and stem separator |
US3209911A (en) * | 1962-06-13 | 1965-10-05 | Speno International | Separating conveyor |
CH663909A5 (en) * | 1984-09-14 | 1988-01-29 | Willy Ag Maschf | Appliance for breaking up, mixing and aerating humus, earth, peat etc. - comprises funnel above shredder belt revolving around 2 drums |
NL9400975A (en) * | 1994-06-15 | 1996-01-02 | Busschers Metaalbedrijf Bv | Sorting device |
US6135290A (en) * | 1998-06-05 | 2000-10-24 | Rockland Manufacturing Company | Sifter attachment for excavating machines and the like |
-
2016
- 2016-09-14 DE DE102016117256.1A patent/DE102016117256A1/en not_active Withdrawn
-
2017
- 2017-09-12 WO PCT/EP2017/072899 patent/WO2018050640A1/en unknown
- 2017-09-12 EP EP17767813.3A patent/EP3512644B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3512644B1 (en) | 2022-05-11 |
DE102016117256A1 (en) | 2018-03-15 |
WO2018050640A1 (en) | 2018-03-22 |
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