Bulk material cleaner with integrated air separator, and bulk material cleaner with a hollow support frame

Patent metadata

Field	Value
Publication number	US-2021308721-A1
Application number	US-201917267118-A
Country	US
Kind code	A1
Filing date	Aug 20, 2019
Priority date	Aug 20, 2018
Publication date	Oct 7, 2021
Grant date	—

Abstract

Bulk material cleaner ( 1 ) comprising a support frame ( 2 ) and a screen housing ( 3 ), which can be oscillated and/or vibrated by a drive ( 5 ). At least one screen ( 6 ) is arranged in the screen housing ( 3 ). The screen housing has a feed opening ( 7 ) and at least two outlet openings ( 8, 9 ), the outlet openings ( 8, 9 ) being for a first fraction (F 1 ) and a second fraction (F 2 ), respectively. Moreover, the bulk material cleaner ( 1 ) comprises an air separator ( 10 ), which is only fastened on the screen housing ( 3 ).

First claim

1 - 12 . (canceled)

13 . A bulk material cleaning device comprising:
a support frame, and a screen housing which is mounted on the support frame by spring elements in such a way that the screen housing can be set in oscillation and/or vibration by a drive, wherein at least one screen is arranged in the screen housing for separating bulk material into a first fraction and a second fraction, the screen housing having an inlet opening and at least two outlet openings, respectively, for the first fraction and the second fraction, and the bulk material cleaning device further comprises an air separator which is only attached to the screen housing so that the air separator can also be set into oscillation and/or vibration by the drive.

14 . The bulk material cleaning device according to claim 13 , wherein the air separator is attached to an upper side of the screen housing.

15 . The bulk material cleaning device according to claim 13 , wherein the air separator is a centrifugal separator.

16 . The bulk material cleaning device according to claim 15 , wherein the centrifugal separator comprises a tangential suction over an entire length of the centrifugal separator.

17 . The bulk material cleaning device according to claim 16 , wherein the tangential suction comprises at least one guide vane which is designed to generate a swirl of an air flow.

18 . The bulk material cleaning device according to claim 15 , wherein the centrifugal separator comprises a jacket having a rotationally symmetrical inner jacket surface and an inner element that is arranged coaxially thereto and has air passage openings, and the inner element extends over an entire length of the centrifugal separator.

19 . The bulk material cleaning device according to claim 18 , wherein the air passage openings of the inner element are formed over an entire length of the inner element.

20 . The bulk material cleaning device according to claim 18 , wherein the inner jacket surface and the inner element are frustoconical.

21 . The bulk material cleaning device according to claim 18 , wherein the air passage openings are provided with guide elements which effect a deflection of the air flow.

22 . The bulk material cleaning device according to claim 13 , wherein the support frame is hollow and at least one outlet opening opens into the support frame.

23 . A bulk material cleaning device comprising:
a support frame, and at least two treatment devices selected from a drum screen, a sorting and classifying device, a stone sorting device, a light material separator, an aspiration channel/tarar and a magnetic separator, each of the at least two treatment devices comprising at least one inlet opening and at least one outlet opening, wherein the at least two treatment devices are mounted on the support frame, the support frame is hollow, at least one outlet opening of one of the at least two treatment devices opens into the support frame, and the support frame opens into the feed opening of at least one of the at least two treatment devices.

24 . The bulk material cleaning device according to claim 23 , wherein the outlet opening of a first treatment device opens into the support frame, and
the support frame opens into the feed opening of a second treatment device arranged downstream of the first treatment device, and the support frame serves as a connecting line between the outlet opening of the first treatment device and the feed opening of the second treatment device.

Assignees

• Buehler Ag

Inventors

• Haag Roman
• Moosmann Jürgen

Classifications

• B07B4/08 Primary

  while the mixtures are supported by sieves, screens, or like mechanical elements · CPC title

• B07B1/40

  Resonant vibration screens · CPC title

• B07B7/086 Primary

  generated by the winding course of the gas stream · CPC title

• B07B9/00 Primary

  Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets · CPC title

• B01D45/16

  generated by the winding course of the gas stream {, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes} · CPC title