US2145559A - Apparatus for simultaneously separating and cooling fine pulverulent materials - Google Patents

Apparatus for simultaneously separating and cooling fine pulverulent materials Download PDF

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Publication number
US2145559A
US2145559A US80069A US8006936A US2145559A US 2145559 A US2145559 A US 2145559A US 80069 A US80069 A US 80069A US 8006936 A US8006936 A US 8006936A US 2145559 A US2145559 A US 2145559A
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United States
Prior art keywords
cooling
floor
air
chamber
pulverulent materials
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.)
Expired - Lifetime
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US80069A
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English (en)
Inventor
Schwarze Erwin
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Individual
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Individual
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Publication date
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Publication of US2145559A publication Critical patent/US2145559A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours

Definitions

  • the invention relates to apparatus for simul-- taneously separating and cooling fine pulverulent materials entrained by an air current, incorporatmg a depositing chamber with a built-in set of filter tubes, and with means forcooling the working air issuing from the filter and maintained in circulation.
  • Apparatuses of this type are known, one form of the said known apparatus comprising, primarily, a depositing chamber with a deeply set floor, leading to a discharge conveyor screw.
  • a separate cooling chamber or box For cooling the working air required there is provided externally of the depositing chamber a separate cooling chamber or box.
  • the set of filter tubes is in many cases so arranged that after traversing the depositing chamber the cooling air passes through a separate tubular conduit into an independent filtering device with its own actuating means and having its own discharging means.
  • the depositing chamber is divided longitudinally by a partition, the filterdevice being arranged in one half while the other half serves as the depositing chamber proper. In such last named constructions the partition does not extend tothc bottom oi. the depositing chamber.
  • the cooling device In winnowers or sifters with two concentrically arranged sifting or separating chambers, in the outer of which filter tubes are arranged vertically, the cooling device consists of individual vertically arranged tubes presenting a cylindrical grating and traversed by a cooling medium.
  • the cooling device is formed as a system of cooling tubes arranged beneath the floor of the depositing chamber in the space otherwise unoccupied and determined by the height of the collecting receptacle.
  • the cooling floor is arranged a conveyor known per seextending the entire length of the floor and provided with scrapers, the function of which conveyor is to ensure that the material deposited on the floor will be in a thin layer, as nearly uniform as possible, and so be thoroughly cooled, and at the same time to efiect continuous removal of the cooled material.
  • the set of filter tubes is arranged above the part of the floor of the depositing chamber which is first' traversed by the conveyor, in order that the floor may be completely utilized as a cooling floor.
  • the air laden with the material to be cooled will traverse the depositing chamber for the entire length of the latter, and the material will fail on to the floor substantially beneath the set of filter tubes and will also be propelled by the scrapers of the conveyor over the entire length of the floor.
  • the construction according to the invention presents the advantage that with a high inlet temperature, which in iself is always desirable, oi
  • the material to be cooled a degree of cooling which 10 is not otherwise obtainable but which is absolutely necessary is realized.
  • the product,,when being ground must be at a high working temperature.
  • the material In order that the good qualities of the product obtained by heating the product to a high temperature may not be lost again, the material must be cooled to a minimum temperature and to a certain extent tempered or chilled.
  • Other advantages resulting from the assembly of the cooling chamber, depositing c amber and filter in a single structure are saving of mechanism, economization of connecting ducts, and saving of space.
  • the warm material enters with the cold current of air through an inlet connection I into her 2 in which it deposits on its way to the filtertubes 3, mainly beneath the set of filters, on the floor 4,
  • a conveyor 6 provided with scraper bars 5 the cooled material is scraped continuously over the floor 4 to a collector 1.
  • the air in circulation flowing through the filter tubes 3 and entering a closed compartment 8 is sucked by a. fan or blower 9 as shown by the arrows through a cooling chamber ll provided with a system of cooling tubes ID.
  • the sage 8 reaches cooling chamber II by passing from passage 8 along before (or behind) the depositing chamber 2 as well as the cooling system l0, and then enters from the front (or back) into the square opening (shown in dotted lines) at the 45 right end of the chamber containing the cooling system 10, in which it passes toward the left hand side along the cooling pipes, turning upward at the left end and then passing toward the right beneath bottom I, and after being laden with a fresh supply of material is again led back to the inletconnection I.
  • a walled depositing chamber having a gaseous mixture inlet, a floor, and a plurality of outlets, of compartments interconnected for the circulation of air, a set of filter tubes built on the depositing chamber and housed in a compartment,
  • said tubes communicating with said outlets, a collecting receptacle, a conveyor adapted to move the material across said chamber floor and to deposit it in said receptacle, means for guiding the working air issuing from the filters through said interconnected compartments and means for cooling said air, said cooling meansbeing arranged under the depositing chamber floor in one of said compartments, the compartment being in heat exchange relation with the floor across which the material is conveyed.
  • a walled depositing chamber having a gaseous mixture inlet, a floor adapted to be used as a cooling floor and a plurality of outlets, of a collectin receptacle, a conveyor adapted to move the material across said floor and to deposit it in said receptacle, compartments interconnected for the circulation of air, a set 01 filter tubes built on the depositing chamber and located in a compartment above that part of the floor which is first traversed by the conveyor, said tubes being in communication with said outlets, means for guiding the working air issuing from the filters through said interconnected compartments and means for cooling said air, said cooling means comprising a system of spaced cooling tubes located in one of the compartments and arranged under the floor of the depositing chamber, said compartment having its height determined by the height of the collecting receptacle and being in heat exchange relationwith the floor across which the material is conveyed.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
US80069A 1935-06-11 1936-05-16 Apparatus for simultaneously separating and cooling fine pulverulent materials Expired - Lifetime US2145559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2145559X 1935-06-11

Publications (1)

Publication Number Publication Date
US2145559A true US2145559A (en) 1939-01-31

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ID=7987114

Family Applications (1)

Application Number Title Priority Date Filing Date
US80069A Expired - Lifetime US2145559A (en) 1935-06-11 1936-05-16 Apparatus for simultaneously separating and cooling fine pulverulent materials

Country Status (4)

Country Link
US (1) US2145559A (enrdf_load_stackoverflow)
BE (1) BE415216A (enrdf_load_stackoverflow)
FR (1) FR805155A (enrdf_load_stackoverflow)
NL (1) NL44811C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6309435B1 (en) * 1997-09-18 2001-10-30 The Young Industries, Inc. Bag dump apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6309435B1 (en) * 1997-09-18 2001-10-30 The Young Industries, Inc. Bag dump apparatus

Also Published As

Publication number Publication date
NL44811C (enrdf_load_stackoverflow)
FR805155A (fr) 1936-11-13
BE415216A (enrdf_load_stackoverflow)

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