CN2709502Y

CN2709502Y - Processing device of bitulith regenerated material

Info

Publication number: CN2709502Y
Application number: CN 200420024358
Authority: CN
Inventors: 凌杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-15
Filing date: 2004-01-15
Publication date: 2005-07-13
Anticipated expiration: 2014-01-15

Abstract

The utility model discloses a processing device of asphalt concrete regenerated material, which is mainly suitable for the regenerated material processing of the interval type asphalt concrete stirring equipment of asphalt pavement regenerated project, comprising four parts including a weigh belt batching part, a heating part, a smoke box and exhaust gas control part, a temporary storage and conveying device. The regenerated material utilizes the existing weight belt batching system to reheat after proceeding with grading control, utilizing air medium with adjustable temperature to heat in order to prevent the regenerated material from being scorched and aging. The waste heat of a platen is heated, which is utilized to proceed with heating and heat preservation of a storage hopper, a drag conveyer is utilized to convey the material to solve the choking of material road; a combustion burner is utilized to proceed with a secondary combustion of asphalt aerosol fog in exhaust air, which both solves pollution and can utilize waste heat. Accordingly the existing common interval type concrete stirring equipment is sufficiently used.

Description

The treating apparatus of asphalt concrete regenerating material

Technical field

The present invention relates to a kind for the treatment of apparatus of asphalt concrete regenerating material, be specially adapted to the treating apparatus of the reworked material of batch asphalt mixing.

Background technology

In the asphalt pavement construction, the equipment that is used for the formed asphalt compound has two types, continuous bituminous concrete mixing equipment and intermittent asphalt concrete mixing plant.Because most suppliers of the aggregate that China's pavement engineering is used, many descriptions of the strict demand of grating are not classified according to flexible pavement, and existing continuous bituminous concrete mixing equipment since with the difference of the operating principle of intermittent asphalt concrete mixing plant, the metering system of its aggregate all is arranged at the supply system (aggregate that requirement enters before the mixing plant has been that specification is suitable) of aggregate, not as the intermittent asphalt concrete mixing plant, after the aggregate baking operation, measuring after sieving.Therefore existing continuous bituminous concrete mixing equipment in the time of all can not guaranteeing to use the bad aggregate of those specifications, still can be mixed and make good, the colory compound of grating.For this reason, stipulate without exception about the clause of " hot asphalt mixes the system of mixing of platform material " among China standard GB 50092-96 " Code for constrution and acceptance of asphat pavement ", the ministry standard JTJ032-94 of Ministry of Communications " asphalt highway construction technique normalizing ": " when engineering material source or quality instability, must not adopt the continuous mixer system of mixing ".Cause and all adopt the intermittent asphalt concrete mixing plant in the highway in China construction.Common intermittent asphalt concrete mixing plant carries out Recycled Asphalt Pavement and adds the technological deficiency that exists man-hour and be: 1. directly burn during the reworked material heating aging with flame heat; 2. reworked material can't carry out secondary heat sieve, causes grating uncontrollable; 3. reworked material heating back transportation, the conveyer that bonds when measuring cause blocking; 4. produce pitch smog in the heating process and produce secondary pollution.

Summary of the invention

The purpose of this utility model provides a kind of regenerating treater that is applicable to the intermittent asphalt concrete mixing plant, and it can make full use of the existing equipment processing of regenerating.

The technical solution of the utility model is: a kind of asphalt concrete regenerating material processing device, and it comprises that belt claims batching part, heating part, smoke box and waste gas control section, temporary storing and conveyer four parts; Belt claims cold burden bucket, the belt belt that claims to gather materials to form belt and claim the part of preparing burden; Cylinder and device are formed heating part at the burner of drum front end; Be contained in the chimney of cylinder rear end, form the waste gas control section by exhaust regulating valve door, variable frequency adjustment circulating fan that the circulated air pipeline is connected with smoke box and burner: the temporary storage bin hopper of device bottom in smoke box places the weighing hopper of temporary storage bin hopper opening below and places the scraper plate feeder of weighing hopper below to form conveyer.Burner housing is a front fine and rear thick cylindrical shape, from A-P axial flow blower, nozzle, semicircle preheating chamber is housed successively in cavity; On semicircle preheating chamber, be distributed with several air bleeds, swirler and tubaeform wind deflector are contained in the preheating chamber front end and in nozzle and are connected, in the back of preheating chamber is cylindrical shape concurrent heating cooling chamber, first half is that concurrent heating district, latter half are cooling area, on the wall tube of concurrent heating chamber, be covered with the concurrent heating hole, on the barrel of cooling area, be covered with the cooling hole, be connected tubaeform wireway in the back of cooling chamber.

The beneficial effects of the utility model are: the existing belt of reworked material utilization claims feed proportioning system, carries out heating after the grating control again; It is aging to utilize the adjustable air dielectric heating of temperature to prevent that reworked material from burning; Utilize heated roller used heat to storage bin hopper heating, insulation, utilize the defeated material of drag conveyer to solve material path block; Utilize special burner that the pitch smog in the waste gas is burnt again, not only contaminated solution but also can utilize used heat, and reduce investment.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a burning structure schematic diagram of the present utility model;

Fig. 3 is a smoke box structural representation of the present utility model;

Fig. 4 is the lateral view of Fig. 3.

Among the figure, 1: the belt batch weigher; 2: belt claims the belt that gathers materials; 3: drying drum; 4: smoke box; 5: temporary storage bin hopper; 6: weighing hopper; 7: the scraper plate feeder; 8: the agitated kettle of supporting mixing plant; 9: the waste discharge air valve; 10: circulating fan; 11: the circulated air pipeline; 12: burner; 13: axial flow blower; 14: oil nozzle; 15: wind deflector; 16: the circulated air interface tube; 17: wireway; 18: burner housing; 19: concurrent heating cooling chamber; 20: the cooling hole; 22: the afterburning hole; 23: air bleed; 24: swirler; 25: semicircle preheating chamber, 26: smoke box and dry drum interface; 27: smoke box and circulated air interface tube.

The specific embodiment

With reference to Fig. 1, the utility model comprises reworked material is carried out grating control just and belt batch weigher (1), the belt carried claim aggregate bin (2), to the heater (12) that the interior medium of drying drum (3) heats, smoke box (4), be loaded on the temporary aggregate bin (5) in the smoke box (4).With reference to Fig. 3,4, smoke box is a cuboid, has circular interface (26), (27) in the one side, and smoke box and drying drum (3) are communicated with by the interface on the smoke box (26); The below of smoke box (4) is weighing hopper (6), and the below of weighing hopper (6) is scraper plate feeder (7), and waste discharge air valve (9) and circulating fan (10) are housed on circulated air pipeline (11) between smoke box (4) and the burner (12).Circulation line is communicated with smoke box by the interface on the smoke box (27).With reference to Fig. 2, burner (12) is front fine and rear thick cylindric, from A-P axial flow blower (13), nozzle (14), semicircle preheating chamber (25), swirler (24) and tubaeform wind deflector (15) is housed successively in the cavity of its shell (18).On semicircle preheating chamber (25) wall, air bleed (23) is arranged.At cylindrical shape concurrent heating cooling chamber first half is that concurrent heating district, latter half are cooling area, and some concurrent heatings hole (22) is arranged on the wall in concurrent heating district; On the wall of cooling area, be covered with some coolings hole (20), be connected tubaeform wireway (17) in the back of cooling area.

Its operating principle is: regeneration stream: will pack in the different batch bins with the reworked material after broken, the cold screening, and be carried out the first grating control of reworked material by the belt batch weigher; Realize the reworked material after the first grating, send into drying drum, in drying drum, it is heated by the hot air medium by the belt belt that claims to gather materials.Reworked material after the heating enters the temporary storage bin hopper in the smoke box.After the weighing hopper metering, send into by the scraper plate feeder in the agitated kettle (8) of the intermittent asphalt concrete mixing plant that matches, in agitated kettle, mix stirring with virgin material.

Add hot air medium stream: fresh air enters burner, mixes with incendiary oil and with the waste gas of circulation in the combustion chamber.Finish and add hot air, burnt gas.The air dielectric that heated enters drying drum, here with reworked material Hybrid Heating reworked material.Waste gas behind the thermal regeneration material enters smoke box, utilizes waste heat to be incubated temporary storage bin hopper here.Storage bin hopper places among the smoke box temporarily, and thermal current from top to bottom by around the temporary storage bin hopper, can utilize used heat, is incubated to prevent that the heat material from stopping up the bonding hopper.

Waste gas is divided into two-way after being come out by smoke box, and the sack cleaner by supporting mixing plant shown in the curb arrow a enters atmosphere; Another road enters the combustion chamber by circulating fan and circulation line shown in arrow c, the here pitch in the burnt gas and intensification once more are to form the air dielectric of thermal regeneration material.

The burner operation principle is: fresh air enters the combustion chamber by axial flow blower shown in arrow b, and the oil firing that is sprayed into by fuel nozzle in the combustion chamber produces heat; Afterburning district and cooling area in the combustion chamber mix with cycle gas, so that the pitch in the burnt gas heats up; Form the high speed thermal current by wireway then and spray into drying drum.The distributive value of axial flow blower rotating speed and nozzle is adjustable continuously, controlled.

Claims

1, plants the asphalt concrete regenerating material processing device, it is characterized in that it comprises that belt claims batching part, heating part, smoke box and waste gas control section, temporary storing and conveyer four parts; Belt claims cold burden bucket (1), the belt belt (2) that claims to gather materials to form belt and claim the part of preparing burden; Cylinder (3) and device are formed heating part at the burner (12) of cylinder (3) front end; Be contained in the chimney (4) of cylinder (3) rear end, form the waste gas control section by exhaust regulating valve door (9), variable frequency adjustment circulating fan (10) that circulated air pipeline (11) is connected with smoke box and burner; The temporary storage bin hopper (5) of device bottom in smoke box (4) places the weighing hopper (6) of temporary storage bin hopper (5) opening below and places the scraper plate feeder (7) of weighing hopper below to form temporary storing and conveyer.

2, asphalt concrete regenerating material processing device according to claim 1, the shell (18) that it is characterized in that burner (12) is a front fine and rear thick cylindrical shape, from A-P axial flow blower (13), nozzle (14), semicircle preheating chamber (25) is housed successively in cavity; Being distributed with several air bleeds (23), swirler (24) and tubaeform wind deflector (15) on semicircle preheating chamber (25) is contained in the preheating chamber front end and in nozzle (14) and is connected, in the linking of the back of preheating chamber cylindrical shape concurrent heating cooling chamber (19) is arranged, first half is that concurrent heating district, latter half are cooling area, on the wall tube in concurrent heating district, be covered with concurrent heating hole (22), on the barrel of cooling area, be covered with cooling hole (20), be connected tubaeform wireway (17) in the back of cooling area.

3, asphalt concrete regenerating material processing device according to claim 1 is characterized in that smoke box (4) is a cuboid, has circular interface (26) and the circular interface (27) that is connected with cylinder (3) in a side.