EP0089448B1 - Extractor with fluidified plate for hygroscopic products - Google Patents

Extractor with fluidified plate for hygroscopic products Download PDF

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Publication number
EP0089448B1
EP0089448B1 EP82830068A EP82830068A EP0089448B1 EP 0089448 B1 EP0089448 B1 EP 0089448B1 EP 82830068 A EP82830068 A EP 82830068A EP 82830068 A EP82830068 A EP 82830068A EP 0089448 B1 EP0089448 B1 EP 0089448B1
Authority
EP
European Patent Office
Prior art keywords
air
product
extractor
fitted
silo
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
Application number
EP82830068A
Other languages
German (de)
French (fr)
Other versions
EP0089448A1 (en
Inventor
Carlo Gulmini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ditta Govoni & C SpA
Original Assignee
Ditta Govoni & C SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ditta Govoni & C SpA filed Critical Ditta Govoni & C SpA
Priority to DE8282830068T priority Critical patent/DE3277196D1/en
Priority to AT82830068T priority patent/ATE29466T1/en
Priority to EP82830068A priority patent/EP0089448B1/en
Priority to GR68646A priority patent/GR76218B/el
Publication of EP0089448A1 publication Critical patent/EP0089448A1/en
Application granted granted Critical
Publication of EP0089448B1 publication Critical patent/EP0089448B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/70—Large containers characterised by means facilitating filling or emptying preventing bridge formation using fluid jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/72—Fluidising devices

Definitions

  • the invention consists in having coupled the vibration and fluidization in only one mechanical equipment.
  • This equipment is positioned in the lowest end of the silos or tank hoppers wherein the hydroscopic and hardly sliding products are stored.
  • This configuration along with the other machines described in the patent application allows to keep the product conditioned in a container both in the lower as in the upper part.
  • the special mechanical system allows a contemporary extraction of the product with the maintaining of conditions apt for stocking particularly hydroscopic materials.
  • the conditioning gas in fact, properly treated in advance getting into contact with the stored product, modifies its humidity according to the balance curve of the same product.
  • the Patent CH-A-447033 concerns a vibrating discharging equipment which is structured with two unloading hoppers, namely a conical and a cylindrical, while the hopper described in this application is conical only.
  • the Patent AT-B-284008 concerns a fluidized extractor in which the object of the claims concerns a device which emits sound waves and which would modulize the inflow speed of the gas with tone frequency within a given field.
  • the present invention forsees the blowing in of the gas conditioned from below, which while penetrating into the product causes the modification of physical features (humidity, smoothness, specific weight, and so on), facilitating discharging and contemporarily improving its preservability.
  • the invention uses a hopper in a truncated cone shape with intermediate cylindrical band essentially consisting of an upper part integral with the silo base and holding four suspension pivots for the underlying part fitted with electrical vibrator apt to allow a shaking action to further the product descent.
  • the mobile part is forseen with the driving organs grouped in a central position and protected by a conical roof-like plate determining an opening, with the hopper wall, in the shape of a circular crown for the product discharge.
  • previously conditioned air is foreseen, with a continuous employ, exiting in jets from the plate nozzles, thus giving rise to a dynamism performing the product fluidification at the silo base with furthers the discharge.
  • FIG. 1 is the view of the discharge compartment, one half of which is seen in section to show the plate covering the insuffling device.
  • Fig. 2 is the simplified scheme to illustrate the whole assembly.
  • a hopper in a truncated cone shape is provided with stationary upper part 2 and an underlying mobile part 3 attached thereto by means of four suspension pivots 4, this part 3 is fitted with an electrical vibrator 5 to facilitate the discharge and it employs an extracting conical part 6 in the upper central position.
  • This part 3 is characterized by insufflation nozzles 7 which fluidize the product and facilitate its sinking wherein for the air circulation, a side fan 8 takes air from outside and forces it through a duct 9 supported on the mobile part 3 through a sieve 10 to exit in jets from its nozzles 7 so stirring and fluidizing the product contained in a cone in the upper part 2 so that its discharge is possible through an opening 11 to its hopper mobile part 3.
  • the insufflation air is taken through a conduit 12 and into a pipe 13 which discharge through a vertical duct 14 on the silo cover wherein its air is drawn from outside through a dehumidizing device 15 which by means of internal temperature controller, conditions the silo; the air passing through an assembly which employs lithium salts absorbing elements in solid state, that operate with self-regenerating effect together with its air heated by means of electrical resistance controlled by a humidity-static device 16, subsequently air passing through water cooling batteries 17 with a thermostat 18 which insufflates the air at controlled temperature and humidity.
  • An automatic filter device 19 is provided on the silo consisting of a cylindrical part in carbon steel and containing filtering hoses 20 of polyester tissue which depurate the air mixture sent by its blower before reaching the product, the filtering device in addition having a head fitted with washing valves controlled by a cyclic 21 which alternately determines the opening and closing.
  • a ventilator 22 is provided for drawing air into the filtering hoses through its washing valve, the filter being fitted with a side sucking fan 23 which conveys the remaining air to its outside, wherein through a deviating valve 24, the air drawn through its filter 19 is sent through a duct 25 to the fan 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The invention employs a hopper with intermediate cylindrical band for connection between the upper stationary part (2) and the underlying one (3) held by the former by means of suspension pivots (4). The mobile part is equipped with an electrical vibrator (5) and the driving organs are foreseen centrally grouped and covered with a conical plate (6) fitted with nozzles (7) of insufflation through which air jets get out fluidifying the product at the silo base in order to further its descent through a circular crown opening (11) foreseen between the plate border and the hopper body, towards the discharge mouth.

Description

  • The invention consists in having coupled the vibration and fluidization in only one mechanical equipment. This equipment, is positioned in the lowest end of the silos or tank hoppers wherein the hydroscopic and hardly sliding products are stored. This configuration, along with the other machines described in the patent application allows to keep the product conditioned in a container both in the lower as in the upper part. The special mechanical system allows a contemporary extraction of the product with the maintaining of conditions apt for stocking particularly hydroscopic materials. The conditioning gas, in fact, properly treated in advance getting into contact with the stored product, modifies its humidity according to the balance curve of the same product.
  • Regarding the previous equipment, the Patent CH-A-447033 concerns a vibrating discharging equipment which is structured with two unloading hoppers, namely a conical and a cylindrical, while the hopper described in this application is conical only. The Patent AT-B-284008 concerns a fluidized extractor in which the object of the claims concerns a device which emits sound waves and which would modulize the inflow speed of the gas with tone frequency within a given field. The present invention forsees the blowing in of the gas conditioned from below, which while penetrating into the product causes the modification of physical features (humidity, smoothness, specific weight, and so on), facilitating discharging and contemporarily improving its preservability.
  • The invention uses a hopper in a truncated cone shape with intermediate cylindrical band essentially consisting of an upper part integral with the silo base and holding four suspension pivots for the underlying part fitted with electrical vibrator apt to allow a shaking action to further the product descent.
  • The mobile part is forseen with the driving organs grouped in a central position and protected by a conical roof-like plate determining an opening, with the hopper wall, in the shape of a circular crown for the product discharge. In order to overcome the cohesion effect, previously conditioned air is foreseen, with a continuous employ, exiting in jets from the plate nozzles, thus giving rise to a dynamism performing the product fluidification at the silo base with furthers the discharge.
  • A non limiting version is illustrated by the drawings of table 1 where Fig. 1 is the view of the discharge compartment, one half of which is seen in section to show the plate covering the insuffling device. Fig. 2 is the simplified scheme to illustrate the whole assembly.
  • A hopper in a truncated cone shape is provided with stationary upper part 2 and an underlying mobile part 3 attached thereto by means of four suspension pivots 4, this part 3 is fitted with an electrical vibrator 5 to facilitate the discharge and it employs an extracting conical part 6 in the upper central position. This part 3 is characterized by insufflation nozzles 7 which fluidize the product and facilitate its sinking wherein for the air circulation, a side fan 8 takes air from outside and forces it through a duct 9 supported on the mobile part 3 through a sieve 10 to exit in jets from its nozzles 7 so stirring and fluidizing the product contained in a cone in the upper part 2 so that its discharge is possible through an opening 11 to its hopper mobile part 3. The insufflation air is taken through a conduit 12 and into a pipe 13 which discharge through a vertical duct 14 on the silo cover wherein its air is drawn from outside through a dehumidizing device 15 which by means of internal temperature controller, conditions the silo; the air passing through an assembly which employs lithium salts absorbing elements in solid state, that operate with self-regenerating effect together with its air heated by means of electrical resistance controlled by a humidity-static device 16, subsequently air passing through water cooling batteries 17 with a thermostat 18 which insufflates the air at controlled temperature and humidity. An automatic filter device 19 is provided on the silo consisting of a cylindrical part in carbon steel and containing filtering hoses 20 of polyester tissue which depurate the air mixture sent by its blower before reaching the product, the filtering device in addition having a head fitted with washing valves controlled by a cyclic 21 which alternately determines the opening and closing. A ventilator 22 is provided for drawing air into the filtering hoses through its washing valve, the filter being fitted with a side sucking fan 23 which conveys the remaining air to its outside, wherein through a deviating valve 24, the air drawn through its filter 19 is sent through a duct 25 to the fan 8.

Claims (4)

1. Extractor for hygroscopic product, having a hopper in a truncated cone shape with a stationary upper part (2) an intermediate cylindrical band and an underlying mobile part (3) attached thereto by means of four suspension pivots (4), this part (3) being fitted with an electrical vibrator (5) to facilitate product discharge, characterized by insufflation nozzles (7) which fluidize the product and facilitate its sinking, wherein, for air circulation, a side fan (8) takes air from outside and forces it through a duct (9) supported on the mobile part (3) through a sieve (10) to exit in jets from the nozzles (7) so stirring and fluidizing the product contained in a cone, in the upper part (2), so that its discharge is possible through an opening (11) to its hopper mobile part (3).
2. Extractor as in claim 1, characterized by the fact that the insufflation air is taken through a conduit (12) and into a pipe (13) which discharges through a vertical duct (14) on the silo cover, wherein its air is drawn from outside through a dehumidizing device (15) which, by means of internal temperature controller, conditions the silo; the air passing through an assembly which employs lithium salts absorbing elements in solid state, that operate with self-regenerating effect together with its air heated by means of electrical resistances controlled by a humidity-static device (16), subsequently its air passing through water cooling batteries (17) with a thermostat (18) which insufflates the air at controlled temperature and humidity.
3. Extractor as in claim 1, characterized by the fact that an automatic filter device (19) is provided on the silo consisting of a cylindrical part in carbon steel and containing filtering hoses (20) of polyster tissue which depurate the air mixture sent by its blower before reaching the product, the filter device in addition having a head fitted with washing valves controlled by a cyclic controller (21) which alternately determines the it, opening and closing.
4. Extractor as in claim 3, characterized by the fact that a ventilator (22) is provided for drawing air into the filtering hoses through its washing valves, the filter being fitted with a side sucking fan (23) which conveys the remaining air to its outside, wherein through a deviating valve (24), the air drawn through its filter (19) in sent through a duct (25) to the fan (8).
EP82830068A 1982-03-23 1982-03-23 Extractor with fluidified plate for hygroscopic products Expired EP0089448B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8282830068T DE3277196D1 (en) 1982-03-23 1982-03-23 Extractor with fluidified plate for hygroscopic products
AT82830068T ATE29466T1 (en) 1982-03-23 1982-03-23 EXTRACTOR WITH FLUIDIZED PLATE FOR HYGROSCOPIC MATERIALS.
EP82830068A EP0089448B1 (en) 1982-03-23 1982-03-23 Extractor with fluidified plate for hygroscopic products
GR68646A GR76218B (en) 1982-03-23 1982-07-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82830068A EP0089448B1 (en) 1982-03-23 1982-03-23 Extractor with fluidified plate for hygroscopic products

Publications (2)

Publication Number Publication Date
EP0089448A1 EP0089448A1 (en) 1983-09-28
EP0089448B1 true EP0089448B1 (en) 1987-09-09

Family

ID=8190112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830068A Expired EP0089448B1 (en) 1982-03-23 1982-03-23 Extractor with fluidified plate for hygroscopic products

Country Status (4)

Country Link
EP (1) EP0089448B1 (en)
AT (1) ATE29466T1 (en)
DE (1) DE3277196D1 (en)
GR (1) GR76218B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785931B1 (en) * 1998-11-12 2001-02-23 Ind Serv Et Conseils Iserco Sa SILO FOR STORING POWDERY PRODUCTS WITH A VIBRATING BACKGROUND
AU3690300A (en) * 1999-06-29 2001-01-31 Eng Hock Goh Container for particulate material
CN106053292A (en) * 2016-07-22 2016-10-26 郑州磨料磨具磨削研究所有限公司 Device and method for measuring stacking density of super-hard abrasive micro-powder
CN106185078B (en) * 2016-08-09 2019-05-28 北京京城环保股份有限公司 A kind of filler bin and discharging method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH447033A (en) * 1966-02-16 1967-11-15 Carrier Manufacturing Company Emptying device on the material container
GB1196956A (en) * 1966-07-14 1970-07-01 Kockums Mekaniska Verkstads Ab A Method and Apparatus for Fluidizing Activation of Particulate, Granular, Viscous and Similar Materials

Also Published As

Publication number Publication date
DE3277196D1 (en) 1987-10-15
ATE29466T1 (en) 1987-09-15
GR76218B (en) 1984-08-04
EP0089448A1 (en) 1983-09-28

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