SU897916A1 - Plant for making asphalt-concrete mixtures - Google Patents

Plant for making asphalt-concrete mixtures Download PDF

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Publication number
SU897916A1
SU897916A1 SU802920583A SU2920583A SU897916A1 SU 897916 A1 SU897916 A1 SU 897916A1 SU 802920583 A SU802920583 A SU 802920583A SU 2920583 A SU2920583 A SU 2920583A SU 897916 A1 SU897916 A1 SU 897916A1
Authority
SU
USSR - Soviet Union
Prior art keywords
drum
partition
casing
buckets
loading
Prior art date
Application number
SU802920583A
Other languages
Russian (ru)
Inventor
Евгений Федорович Ивин
Виктор Иванович Ларионов
Анатолий Павлович Кордаполов
Original Assignee
Центральное Проектно-Конструкторское Технологическое Бюро Росспецстроя
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 Центральное Проектно-Конструкторское Технологическое Бюро Росспецстроя filed Critical Центральное Проектно-Конструкторское Технологическое Бюро Росспецстроя
Priority to SU802920583A priority Critical patent/SU897916A1/en
Application granted granted Critical
Publication of SU897916A1 publication Critical patent/SU897916A1/en

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Description

(54) INSTALLATION FOR PREPARATION OF ASPHALT-CONCRETE MIXTURES

I

The invention relates to road construction and can be used both for drying sand and rubble, and for preparing asphalt concrete mixtures.

A known installation for the preparation of asphalt mixes, comprising loading devices for the components, a rotating drum, a firebox, and an unloading device 1.

The closest technical solution to the present invention is an installation for preparing asphalt-concrete mixtures, containing a drive drum with longitudinal blades on its inner surface, with a loading opening at one end and a discharge tray at the other and with wipers fixed on it at its center. with a flat bottom and a transverse partition mounted in front of them, a combustion device placed on the drum loading side, bitumen extraction and supply pipelines - with with Oron 2 discharge.

The disadvantages of installations are the removal of oil vapor and the deterioration of the thermal regime due to an impermeable partition.

The purpose of the invention is to increase the quality of the mixture preparation.

Claims (2)

  1. This goal is achieved by the fact that a plant for preparing asphalt-concrete mixtures, containing a drive drum with longitudinal blades on its inner surface, with a loading opening at one end and a discharge tray at the other and with flat-top buckets fixed on it the bottom and the transverse partition mounted in front of them, the combustion device placed on the drum loading side, bitumen extraction and supply pipelines on the discharge side, is provided with The drum lifted on the drum from the side of the flue unit, 5 is neither a bucket lift, and the drum is placed in front of the partition along its perimeter by valves mounted on the outer surface and enclosing it with a casing, the transverse partition is perforated and has a conical shape, the base facing the furnace, and the pipeline for drawing has an additional pipe with a flap connected to the casing, and that the bottom of each bucket is installed with a slope in the direction of rotation of the drum at a sharp angle to its radius. FIG. 1 shows the proposed device, general view, section; in fig. 2 is a section A-A in FIG. I; in fig. 3 is a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one; ka fig. 5 is a cross-section of the FIG. 1. A device for preparing asphalt mixes is a drum 1, rotating with an actuator (not proven) and installed obliquely in the direction of the discharge tray 2. At one end, drum 1 has a furnace 3 and a bucket elevator 4 for feeding large fractions (rubble and sand). ), which is made in the form installed around the perimeter of the drum 1 buckets 5 with a round bottom. The buckets 5 have a loading part 6 and a unloading part 7, the latter forming with the inner surface of the drum 1 a gap sufficient for passing coarse fractions. In the middle of the drum 1, a transverse partition 9 of conical shape with openings formed perpendicularly forming a cone is installed on the kraystein 8. An exhaust device 10 is mounted in front of the partition; it is made in the form of valves 11 pivotally mounted on the housing of drum 1. Valves 11 can open under their own weight when the drum rotates in housing 12 connected by an additional pipe 13 to discharge pipe 14 of the discharge chute 2, and having an adjustable damper 15. To clean the casing 12 from dust on the drum casing, scrapers 16 are installed. Behind the partition 9 a loading device 17 for fine fractions (mineral powder) is installed, performed It is rigidly connected to the drum casing 1 of hollow box-shaped buckets 18, an annular box 19 and a sluice feeder 20. The trays 18 are offset from the radial position by an angle " t. From the opposite end of the furnace 3, the drum 1 has a pipe 21 for feeding bitumen. Along the length of the drum, exciting blades 22 are mounted on its inner surface. The device operates as follows. The odosed coarse fractions (rubble and sand) are continuously fed into the bucket elevator 4, where they are captured, buckets 5, sweep over the flame of the firebox 3, do not fill it, and are poured inwards, moving along the drum 1. At the same time, the loading device 16 goes through sludge feeder 20 is continuously supplied. Dispensed fine fractions (mineral powder), which are captured by buckets 18 and fed under the curtain of material. Due to the contact of coarse fractions with fine particles, the latter are dried and heated. Heating and drying of small fractions occurs also due to their contact with flue gases passing into the drying zone through the openings of the partition 9. Moving further, all fractions are mixed with bitumen supplied to the curtain of materials through pipeline 21. Exhaust gases are removed from the drum 1 through the exhaust device 10, installed in front of the partition 9 and having an adjustable damper 15, through the opening under the effect of the own weight of the valve 11 and the discharge casing 13. The ready mixture is discharged through the tray 2. The proposed installation allows t improve the quality of asphalt mix preparation. Claim 1. An apparatus for preparing asphalt-concrete mixtures, comprising a drive drum with longitudinal blades on its inner surface, with a loading opening at one end and a discharge tray at the other and with flat-top buckets on it in the middle part. front panel and mounted ™ “in front of them with a transverse partition, a combustion device placed on the drum loading side, pipelines for extracting and supplying bitumen from the discharge side, characterized in that It is equipped with a bucket lift mounted on the drum from the side of the combustion device, and the drum is placed in front of the partition around its perimeter, valves mounted on the outer surface and the casing surrounding it, is transverse partition perforated and has a conical shape , facing the base of the furnace device, and the exhaust pipe has an additional pipe with a valve connected to the casing. 2. Installation under item 1, characterized in that the bottom of each bucket is installed with a slope in the direction of rotation of the drum at an acute angle to its radius. Sources of information taken into account in the examination 1. US Patent No. 4039171, cl. B 28 C 5/46, 1977.
  2. 2. US patent number 4095284, cl. 366-7, 1978. Gg.,
    l / 2j
SU802920583A 1980-05-05 1980-05-05 Plant for making asphalt-concrete mixtures SU897916A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU802920583A SU897916A1 (en) 1980-05-05 1980-05-05 Plant for making asphalt-concrete mixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU802920583A SU897916A1 (en) 1980-05-05 1980-05-05 Plant for making asphalt-concrete mixtures

Publications (1)

Publication Number Publication Date
SU897916A1 true SU897916A1 (en) 1982-01-15

Family

ID=20894119

Family Applications (1)

Application Number Title Priority Date Filing Date
SU802920583A SU897916A1 (en) 1980-05-05 1980-05-05 Plant for making asphalt-concrete mixtures

Country Status (1)

Country Link
SU (1) SU897916A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261738A (en) * 1992-09-25 1993-11-16 Astec Industries, Inc. Asphalt drum mixer with bypass for controlling the temperature of the exhaust gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261738A (en) * 1992-09-25 1993-11-16 Astec Industries, Inc. Asphalt drum mixer with bypass for controlling the temperature of the exhaust gas

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