WO1989002308A1 - Installation pour collecter et eliminer des matieres fluidisables - Google Patents

Installation pour collecter et eliminer des matieres fluidisables Download PDF

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Publication number
WO1989002308A1
WO1989002308A1 PCT/EP1988/000776 EP8800776W WO8902308A1 WO 1989002308 A1 WO1989002308 A1 WO 1989002308A1 EP 8800776 W EP8800776 W EP 8800776W WO 8902308 A1 WO8902308 A1 WO 8902308A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
liquid
air
plant according
separating
Prior art date
Application number
PCT/EP1988/000776
Other languages
German (de)
English (en)
Inventor
Mikael SÖDERGREN
Boris Lindgren (Verstorben)
Original Assignee
I-Skad Produkt Ab
Lindohf, Louise, Loulou (Legal Representative Of L
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 I-Skad Produkt Ab, Lindohf, Louise, Loulou (Legal Representative Of L filed Critical I-Skad Produkt Ab
Publication of WO1989002308A1 publication Critical patent/WO1989002308A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0045—Plurality of essentially parallel plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/14—Separation devices for workshops, car or semiconductor industry, e.g. for separating chips and other machining residues
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/04—Regenerating the washing fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/12—Fan arrangements for providing forced draft

Definitions

  • the invention relates to a system for collecting and disposing of fluidizable material such as dust or the like. According to the preamble of claim 1.
  • the container then again has the same problem, the fluidizable material portions get into the air and are distributed in the environment.
  • the present invention is concerned with the fact that the fluidizable material is separated via sprayed-in liquid and the liquid is retained in the circuit.
  • the present invention is concerned with the fact that the fluidizable material is separated via sprayed-in liquid and the liquid is retained in the circuit.
  • the system works particularly uniformly when the liquid return comprises a storage tank which has means for regulating the liquid level in the
  • the system becomes particularly compact if the separating device is installed in the container in such a way that it divides it into two sections.
  • One section is located in the area or under the spray device attached at the top of the container and fills with sedimented sludge over time, the other part of the container, which can be chosen to be much smaller than the part for receiving of the sludge, serves to absorb excess liquid.
  • the separating device comprises a plurality of lamellae arranged in the manner of blinds, which incline from the second (liquid-absorbing) to the first (sludge-absorbing) section of the container, the separating action of this device then It is particularly good if the lamellae have an inclination of essentially 54 to 58 °, in particular 56 °.
  • the system preferably comprises a suction device mounted on the container and is designed to be transportable.
  • Fig. 1 shows a first preferred embodiment
  • Fig. 2 shows a second preferred embodiment of the invention.
  • a container 20 is provided, which is preferably kessiform and one end of which is provided with a hinged lid.
  • a suction fan 13 On the top of the container 20 there is a suction fan 13 which can convey air from an air inlet 1 into the interior of the container 20.
  • an air outlet 2 On the folding lid of the loading is an air outlet 2 ( at the upper edge ') attached, which is followed by a (not shown) fine filter.
  • the resulting air flow (arrow L) thus travels through an essential part of the container 20 from the inlet 1 or the outlet of the blower 13 to the outlet 2.
  • a spray device 4 is provided in the upper part of the container, which has a plurality of spray heads 24 which are directed downward.
  • the arrangement here is such that essentially the entire air flow has to flow through the "water curtain" formed by the spray device 4.
  • a separating device 6 in front of the air inlet 1 or the outlet of the suction fan 13, which separator consists of a plurality of lamellae, which separate the container 20 into a first section 22 transversely to its longitudinal axis and separate a second section 23.
  • the slats incline downward from the second section 23 in the direction of the first section 22, specifically at an angle of approximately 56 °.
  • the container interior is connected to a storage tank 9 by means of a line 8.
  • the storage tank 9 is connected to the spray device 4 via a return line 12, in which there is a pressure pump 21.
  • the storage tank 9 has a level control which comprises a fill level sensor 16, the output signals of which are fed to a controller 17 which actuates a control valve 18 in a fresh water supply line 11 via an output line.
  • a metering pump 19 which can supply chemically active substances from a chemical tank 10 to the fresh water, the ratio of fresh water to chemicals being controlled by a controller 15 which, via a flow sensor 14, signals with the information about the quantity of fresh water supplied receives.
  • a controller 15 which, via a flow sensor 14, signals with the information about the quantity of fresh water supplied receives.
  • Water in the container 20 flows through the fins 6 obliquely upwards into the second section 23 of the container, the heavier particles remaining behind and sedimenting or forming sludge 5.
  • the separated liquid 7 is then fed via line 8 and the reservoir 9 from the pump 21 via line 12 back to the spray device 4.
  • the level control is set in such a way that there is an optimal separation effect in the lamella separator 6, where the storage container 9 serves as a "buffer".
  • the supply of the cationic chemicals from the chemical tank 10 via the metering pump 19 is such that the overall environment in the interior of the container 20 is neutral, so that the interior walls of the system are not corroded.
  • a pH meter is additionally provided, via the output of which the metering pump 19 is controlled (if necessary additionally) in such a way that the neutral environment mentioned above is ensured.
  • a nozzle device 25 is provided in addition to or instead of the spray device 4 with spray heads 24, which sprays into an air guiding device (26) which surrounds the nozzle 25 in a tubular manner and is open on both sides.
  • the air-guiding device 26 is preferably provided with a profile as in a steam jet or water jet pump, so that when water is sprayed in, an air flow L ′ results which is directed against the air flow L generated by the suction fan 13.
  • Within the air guiding device 26 finds a thorough naturalwirbe- lung because of the resulting turbulence instead, causing current i m L 'solid particles contained safely wets be ⁇ .
  • the air jet emerging from the air guiding device 26 is directed to a separating and deflecting device 27, which is designed such that the air flow L 'does not reach the first section 23 of the container 20, but rather passes into the air flow L. In this way, multiple mixing of the incoming air-dust mixture is ensured, the wetting of the fluidized particles being particularly favorable.
  • the separating and deflecting device 27 can be designed as a lamella package, as is indicated in FIG. 2.
  • the system thus constructed can store a large amount of dust before it has to be emptied.
  • the sludge 5 can simply be emptied via the sludge discharge 3 at the lower end of the lid of the container 20, with no hazardous dust being produced.
  • the sludge to be removed is already neutralized, which is another advantage for disposal.
  • the system is preferably mounted on a truck or can be placed on such a truck in order to transport it from site to site and to the landfill, in which case the container 20 can advantageously be tilted so that it can be moved over the sludge dump to drain train 3 thoroughly.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Particles Using Liquids (AREA)

Abstract

La démolition d'immeubles ou à l'intérieur de ces derniers provoque fréquemment la formation de poussières qui sont malsaines et qui sont libérées dans l'air pendant les travaux de démolition, pendant leur évacuation et leur dépôt. Une installation comporte un conteneur (20) pourvu d'une admission d'air (1) et d'une sortie d'air (2) agencées de telle manière qu'un courant d'air (L) chargé de poussières circule à travers une partie essentielle du conteneur. Ce dernier comprend dans la région du courant d'air (L) un dispositif de vaporisation (4) pour vaporiser un liquide aqueux et précipiter la poussière. Un dispositif de séparation (6) est également prévu dans le conteneur (1) pour séparer les matières se déposant par sédimentation dans le liquide sous forme de boue (5) et le liquide en excès (7). Un fonctionnement non polluant est garanti par un recyclage du liquide (8, 9, 21, 12) qui renvoie le liquide (7) du dispositif de séparation (6) au dispositif de vaporisation (4).
PCT/EP1988/000776 1987-09-10 1988-08-30 Installation pour collecter et eliminer des matieres fluidisables WO1989002308A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3730436.4 1987-09-10
DE19873730436 DE3730436A1 (de) 1987-09-10 1987-09-10 Anlage zum aufsammeln und entsorgen fluidisierbaren materials

Publications (1)

Publication Number Publication Date
WO1989002308A1 true WO1989002308A1 (fr) 1989-03-23

Family

ID=6335727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000776 WO1989002308A1 (fr) 1987-09-10 1988-08-30 Installation pour collecter et eliminer des matieres fluidisables

Country Status (4)

Country Link
EP (1) EP0333797A1 (fr)
JP (1) JPH02500889A (fr)
DE (1) DE3730436A1 (fr)
WO (1) WO1989002308A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2538187A1 (de) * 1974-09-03 1976-03-11 Yoshio Mitani Verfahren und vorrichtung zum nassentstauben von gasen
US3964886A (en) * 1974-10-29 1976-06-22 Baltimore Aircoil Company, Inc. Gas scrubbing apparatus
DE3325807A1 (de) * 1983-07-16 1985-01-31 Intensiv-Filter Gmbh & Co Kg, 5620 Velbert Nassfilter zum abscheiden von feststoffen und absorbieren von schadgasen und geruchsstoffen
US4676811A (en) * 1986-09-10 1987-06-30 Eugene Water & Electric Board Wet air cleaning apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2538187A1 (de) * 1974-09-03 1976-03-11 Yoshio Mitani Verfahren und vorrichtung zum nassentstauben von gasen
US3964886A (en) * 1974-10-29 1976-06-22 Baltimore Aircoil Company, Inc. Gas scrubbing apparatus
DE3325807A1 (de) * 1983-07-16 1985-01-31 Intensiv-Filter Gmbh & Co Kg, 5620 Velbert Nassfilter zum abscheiden von feststoffen und absorbieren von schadgasen und geruchsstoffen
US4676811A (en) * 1986-09-10 1987-06-30 Eugene Water & Electric Board Wet air cleaning apparatus

Also Published As

Publication number Publication date
JPH02500889A (ja) 1990-03-29
DE3730436A1 (de) 1989-03-23
EP0333797A1 (fr) 1989-09-27

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