EP0653517A1 - Installation pour la production continue d'agglomerés de bitume - Google Patents

Installation pour la production continue d'agglomerés de bitume Download PDF

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Publication number
EP0653517A1
EP0653517A1 EP93830458A EP93830458A EP0653517A1 EP 0653517 A1 EP0653517 A1 EP 0653517A1 EP 93830458 A EP93830458 A EP 93830458A EP 93830458 A EP93830458 A EP 93830458A EP 0653517 A1 EP0653517 A1 EP 0653517A1
Authority
EP
European Patent Office
Prior art keywords
plant
product
cylindrical
foreseen
duct
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
Application number
EP93830458A
Other languages
German (de)
English (en)
Other versions
EP0653517B1 (fr
Inventor
Giorgio Ghirardelli
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.)
Ghirardelli Giorgio
Original Assignee
Individual
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8215249&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0653517(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to DE69314647T priority Critical patent/DE69314647T2/de
Priority to AT93830458T priority patent/ATE159308T1/de
Priority to EP93830458A priority patent/EP0653517B1/fr
Priority to ES93830458T priority patent/ES2108858T3/es
Publication of EP0653517A1 publication Critical patent/EP0653517A1/fr
Application granted granted Critical
Publication of EP0653517B1 publication Critical patent/EP0653517B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E01C19/1031—Mixing in a rotary receptacle the mixture being discharged continuously
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E01C19/1036—Mixing in a rotary receptacle for in-plant recycling or for reprocessing, e.g. adapted to receive and reprocess an addition of salvaged material, adapted to reheat and remix cooled-down batches
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C2019/1081—Details not otherwise provided for
    • E01C2019/109—Mixing containers having a counter flow drum, i.e. the flow of material is opposite to the gas flow

Definitions

  • the invention refers to a closed operative plant consists of a cylindrical rotary kiln and of a filtering unit for the smokes to be used for producing bituminous conglomerate in continuous work cycle.
  • Said cylindrical kiln with initial part of smaller diameter, forming the drying chamber, and subsequent part of larger diameter foresees in its inner a cylindrical structure with fixed duct, brought on header, which lets in the heat flow from the burner to the combustion chamber countercurrent compared to the direction of advancement of the inert product.
  • a mixing chamber consists of a closed unit lying behind the wall where is placed the inlet of the heat flow.
  • the filtering unit consists of a closed cycle realizing the blasting of the smokes with continuous unloading towards outside of the purified air. Said filtering unit makes the completly recovery and dosing of the fine dust of the cement suspended in the air flow for its prompt use into the mixing chamber. Moreover the filtering unit foreseen a closed work cycle permits the complete use of the heat flow. Plants are known, as for instance the plant described and shown in the Italian Patent Application filed on 20th december 1991 with application number BO91A 000487.
  • the invented plant foreseen the heat flow countercurrent compared to the direction of advancement of the inert product into the drying and combustion chambers permits, for impact, to increase the heat exchange effect so assuring a better yield of the kiln.
  • the combustion chamber foresees in a closed unit, this permits by the different placing of the unit generating the heat flow, it is avoided the product volatization in particular of the fine dust of the cement and it is permitted to keep the product mixing to a right dosing.
  • the invented cylindrical kiln with its initial part of smaller diameter contrary to the kiln described in the Italian Patent Application BO91A 000487 foresees with an unchanged diameter, permits to foresee the widths of the drying and combustion chambers related to the use necessities; this considering that into the drying chamber is prevalently necessary to move the product onto the wall to increase the licking up effect while into the combustion chamber is prevalent the necessity to bring the product onto the heat source.
  • the unloading of the product ready to be used from the mixing chamber is actuated in continuous way according to fortuitousness so determing heterogeneous product.
  • the invented plant are foreseen programmed times for the unloading so avoiding heterogeneous product.
  • the invented plant permits the complete recovery and dosing of the fine dust of cement for its prompt re-employment.
  • Being foreseen in the present invention into a closed operative plant, oppurtunately insulated, a filtering unit acting following to a cylindrical rotary kiln it is possible to realize the blasting of the smokes present into the circulation air and also to realize the complete use of the plant heat.
  • a closed operative plant consists of a cylindrical rotary kiln in continuous cycle with upper filtering unit, said plant brought on a frame with three bridges 1 completed with a bearing network structure 2.
  • Said structure 2 foresees beams 3, slanting towards the unloading, which bring on couple of rotary bearings 4 with rollers 5 a cylindrical kiln with initial part of smaller diameter 6 and subsequent part of larger diameter 7.
  • Said cylindrical kiln foresees emerging on its outside rims 8 for the contact of the rollers 5 with motion gives by a motor 9 which transmits on the gear 10 of the rotary support 11 to the rack 12.
  • the inert product after to have being dosed, form the elevator 13, through the inlet 14 foreseen on the transversal fixed wall 15, coming into the drying chamber 16 formed by the initial part of smaller diameter 6 of the cylindrical kiln.
  • said drying chamber the product, in continuous movement by means of sets of vanes, proceeds gradually from gravity effect and it passes into the combustion chamber 17 formed by the subsequent part of larger diameter 7 of the cylindrical kiln.
  • the product climbs on a rotary elevator equipped with a set of vanes 18 radially placed on the circular crown 19 emerging from the cylindrical kiln 6-7.
  • Said crown 19 rotates together with the kiln and it forms, with the inner circular fixed part 20 brought centrally by a cylindrical structure 21 housing into the fixed frame 22 sets out on the network structure 2, an orifice plate which devides the combustion chamber from the subsequent mixing chamber 23.
  • the inert product after to have being dryed into the drying chamber 16 and to have being baked into the combustion chamber 17, chimbs by means of the set of vanes 18 and it is unloaded in continuous work cycle by means of the chute 24 into the mixing chamber 23.
  • said mixing chamber through a duct 25, is let in nonasphaltic road oil at 140° coming from a feeder.
  • the hydraulic cylinders 28 open a set of equidistant portholes 29 for the unloading of the product ready to be used which proceeds in continuous and is unloaded through the opening 30 of the hopper 31.
  • the product going out from the hopper 31 can then be loaded on transport means or used for the different necessities.
  • the cylindrical rotary kiln 6-7 uses a burner 32 which, through a duct foreseen into the cylindrical structure 21, lets in the flame into the cylindrical kiln through the month 33 creating a heat flow countercurrent compared to the material advancing into the drying chamber 16 and into the combustion chamber 17.
  • the purified air goes out from the duct 46 and through the intake manifold 38 by the air propeller 39 goes out from the stack 40.
  • the dusts which have being kept into the fabric filters 37 fall into the cone-shape duct 47 with at its end the Archimedes' screw 48.
  • Said Archimedes'screw 48 unloads the dusts into a duct 49 with a Archimedes'screw 50 where the load cells 51 of fine recovery product are weighed.
  • the Archimedes'screw 50 then unloads the fine recovery product into the mixing chamber 23 through the screw conveyor 26. In this way is realized the prompt re-employment of the fine dust of cement dispelled into the plant.
  • a version of the invented plant is illustrated in schematic view in the drawings of sheets 1, 2, 3 and 4. Fig.
  • Fig. 1 is longitudinal section view of the plant in its initial part with view of the cylindrical kiln 6-7 and of the upper filtering unit 34.
  • Fig. 2 is longitudinal section view of the plant in its end part with view of the mixing chamber 23.
  • Fig. 3 is back view of the plant.
  • Fig. 4 is side view of the plant with view of the frame with three bridges 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP93830458A 1993-11-17 1993-11-17 Installation pour la production continue d'agglomérés de bitume Expired - Lifetime EP0653517B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69314647T DE69314647T2 (de) 1993-11-17 1993-11-17 Anlage zur Bereitung eines Bitumenkonglomerats im Kontinuverfahren
AT93830458T ATE159308T1 (de) 1993-11-17 1993-11-17 Anlage zur bereitung eines bitumenkonglomerats im kontinuverfahren
EP93830458A EP0653517B1 (fr) 1993-11-17 1993-11-17 Installation pour la production continue d'agglomérés de bitume
ES93830458T ES2108858T3 (es) 1993-11-17 1993-11-17 Instalacion para producir conglomerado bituminoso en un ciclo continuo de trabajo.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93830458A EP0653517B1 (fr) 1993-11-17 1993-11-17 Installation pour la production continue d'agglomérés de bitume

Publications (2)

Publication Number Publication Date
EP0653517A1 true EP0653517A1 (fr) 1995-05-17
EP0653517B1 EP0653517B1 (fr) 1997-10-15

Family

ID=8215249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93830458A Expired - Lifetime EP0653517B1 (fr) 1993-11-17 1993-11-17 Installation pour la production continue d'agglomérés de bitume

Country Status (4)

Country Link
EP (1) EP0653517B1 (fr)
AT (1) ATE159308T1 (fr)
DE (1) DE69314647T2 (fr)
ES (1) ES2108858T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020087943A1 (fr) * 2019-05-20 2020-05-07 江苏徐工工程机械研究院有限公司 Système de mélange d'asphalte et procédé de purification de fumées d'asphalte

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114508921A (zh) * 2022-03-04 2022-05-17 广德和美印务科技有限公司 一种塑料袋加工用可角度调节的烘干设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211490A (en) * 1976-05-10 1980-07-08 Astec, Industries, Inc. Drum mix asphalt plant with fiber filter dust collector
EP0347271A1 (fr) * 1988-06-13 1989-12-20 Ermont. C.M. Dispositif de préparation de produits enrobés bitumineux constitué par un tambour
EP0391768A1 (fr) * 1989-04-05 1990-10-10 Ermont. C.M. Tambour sécheur et enrobeur pour la préparation de produits enrobés bitumineux comportant un brûleur perfectionné
US5054931A (en) * 1987-04-06 1991-10-08 Barber-Greene Co. Counterflow asphalt drum mixer producing less hydrocarbon emissions and a method used therein

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211490A (en) * 1976-05-10 1980-07-08 Astec, Industries, Inc. Drum mix asphalt plant with fiber filter dust collector
US5054931A (en) * 1987-04-06 1991-10-08 Barber-Greene Co. Counterflow asphalt drum mixer producing less hydrocarbon emissions and a method used therein
EP0347271A1 (fr) * 1988-06-13 1989-12-20 Ermont. C.M. Dispositif de préparation de produits enrobés bitumineux constitué par un tambour
EP0391768A1 (fr) * 1989-04-05 1990-10-10 Ermont. C.M. Tambour sécheur et enrobeur pour la préparation de produits enrobés bitumineux comportant un brûleur perfectionné

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020087943A1 (fr) * 2019-05-20 2020-05-07 江苏徐工工程机械研究院有限公司 Système de mélange d'asphalte et procédé de purification de fumées d'asphalte

Also Published As

Publication number Publication date
DE69314647D1 (de) 1997-11-20
ATE159308T1 (de) 1997-11-15
EP0653517B1 (fr) 1997-10-15
ES2108858T3 (es) 1998-01-01
DE69314647T2 (de) 1998-02-12

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