CN2071668U

CN2071668U - Mixing tube for bitumen mixture mixer

Info

Publication number: CN2071668U
Application number: CN 90207057
Authority: CN
Inventors: 蔡智敏; 郑金国; 许子清; 陈飞
Original assignee: Fuzhou Road Construction Machinery Manufacturing And Repair Plant Fujian Highwa
Current assignee: Fuzhou Road Construction Machinery Manufacturing And Repair Plant Fujian Highwa
Priority date: 1990-03-15
Filing date: 1990-03-15
Publication date: 1991-02-20

Abstract

The utility model relates to an invention of a single roller mixing tube for a bitumen mixture mixer. The inner part of the tube is a sand stone drying area and a bitumen mixture mixing area, the inner part of the drying area is provided with a drying vane and a discharge vane, and the inner part of the mixing area is provided with a mixing vane, a material blocking vane and the discharge vane. All the vanes are arranged in certain rotating directions. Compared with the general single roller bitumen mixture mixer, the single roller bitumen mixture mixer manufactured by the mixing tube has more outstanding advantage as well as the advantages of simple structure and low cost that the double rollers bitumen mixture mixer doesn't have.

Description

Mixing tube for bitumen mixture mixer

The utility model relates to a kind of mixing drum that is used for the bituminous mixture mixer of asphalt pavement maintenance, particularly about the mixing drum of single cylinder bituminous mixture mixer.

In the past in the domestic highway communication of China, generally adopt artificial alr mode production for the used bituminous mixture of the light maintenance maintenance of flexible pavement, owing to be simply equipped, technology falls behind, cause compound cost of production height, of poor quality, the repair quality of flexible pavement can't guarantee, in whipping process, also pollute the environment, labor strength is also very big.For this reason, some producers have also produced some single cylinder bituminous mixture mixers, but owing to mix sandstone material often wayward temperature in drying course of system compound, cause the overheated burn-in effects mixture quality of pitch.Our factory has manufactured and designed SLB-14 type double drum type bituminous mixture mixer according to these situations and has come into operation, this machine is finished the oven dry of sandstone material and sandstone material and aqueous pitch respectively with two cylinders and is stirred, and has avoided general single cylinder compound shortcoming that mixer has.The bituminous mixture bitumen aggregate ratio of producing is accurate, and uniform mixing does not have segregation and ageing of asphalt phenomenon and takes place.But this machine also comes with some shortcomings, and mainly is that twin-roll works alone, and needs to adopt two sets of transmission mechanism and electric-control system, with the forward and reverse running work of index drum.Thereby the more general single rotary mixer complexity of structure, raw material expend many, and cost is also high, promotes the use of to be subject to certain restrictions.

Task of the present utility model provides a kind of single tumbling bituminous mixture mixer mixing drum, monotubular tube compound mixer with this making had both had the advantage of above-mentioned twin-roll bituminous mixture mixer, have simple in structurely again, cost is low, the advantage of being convenient to promote the use of.

Below in conjunction with accompanying drawing, narrate formation of the present utility model:

The mixing drum basically identical of profile of the present utility model and SLB-14 type twin-roll bituminous mixture mixer is made of charging awl 2, one reclaiming cones 7 and stack shell 3; The inlet of charging awl 2 has a charging aperture circle 1, and the outlet of reclaiming cone 7 has a discharging opening end plate 8, lasso 9, oil pipe import 11 and discharging circle 10, and the outer wall of stack shell 3 has the spike 22 of 2 circle raceways 4 and fixed drive gear ring; Its internal construction is seen Fig. 1, and charging awl 2 has been formed the required sandstone material of production bituminous mixture baking zone I with the part of reclaiming cone 5 and stack shell 3 among the figure, and charging awl 6 is formed sandstone material and aqueous pitch stirring area II with the part of reclaiming cone 7 and stack shell 3.Stack shell 3 inwalls of baking zone I are provided with 3 kinds of oven

dry blades

12,15,16 and discharge blades 14 among Fig. 2, oven dry blade 12 is the dextrorotation blade; Oven

dry blade

15,16 and discharge blade 14 are left-handed blade.The number of blade of the same race is 2, the 180 ° of layouts of on the inwall circumference of stack shell 3, being separated by, for guaranteeing 12,15, the 16 unlikely at work distortion of oven dry blade, also can reinforce with reinforced blade 13,17, the inwall of the stack shell 3 of stirring area II is provided with 2 kinds of stirring

vanes

18,19 among Fig. 3, discharge blade 20 and backgauge blade 21; Stirring vane 18 is left-handed blade, backgauge blade 21, stirring vane 19 and discharge blade 20 are the dextrorotation blade, and the number of blade of the same race is 2, on stack shell 3 inwall circumference, be separated by 180 ° and arrange that wherein backgauge blade 21 is fixed on the inwall of reclaiming cone 7 as shown in Figure 4.

Accompanying drawing has been described an embodiment of the present utility model.

Fig. 1 is the longitudinal sectional view of mixing drum of the present utility model,

Fig. 2 is stack shell 3 inwalls 1/2 circumference expanding map of baking zone I shown in Figure 1.

Fig. 3 is stack shell 3 inwalls 1/2 circumference expanding map of stirring area II shown in Figure 1.

Fig. 4 is the backgauge leaf position schematic diagram on the charging awl 6 among Fig. 1.

Each parts of the utility model mixing drum can be with after the thick steel plate oxygen-acetylene cutting of 4～12mm, and what be welded on stack shell 3 more respectively one by one respectively gives allocation.

The structure of monotubular two-region has been adopted in the inside of the utility model mixing drum, the oven dry and the compound stirring of sandstone material are separated, like this pitch that enters stirring area through the oil pipe import not reason be subjected to thermal source and spray into the high temperature gas flow influence of baking zone baked sand building stones and wear out from the charging aperture circle, and then have influence on the quality of compound, simultaneously the interior discharge blade rotation direction of baking zone and stirring area is different, after finishing oven dry, baking zone pushes the unlikely mixing drum that is discharged from of sandstone material of stirring area like this, when reverse rotation, the discharge blade discharge of stirring area, backgauge blade hinder the compound that stirs again and return dram again.In sum, the various blades in the mixing drum of the present utility model are orderly owing to arranging, thereby only need adopt a cover driving mechanism and an electric-control system.Can realize just changeing charging, oven dry and discharging, the counter-rotating punishment in advance, the manufacturing process that stirs, the various advantages that twin-roll bituminous mixture mixer is had have so just been reached, also reach simplified structure, reduced cost, reduced the purpose of volume, for China's asphalt pavement conserving mechanization provides a kind of desirable facility, be beneficial to and promote the use of.

Claims

1, a kind of single cylinder bituminous mixture mixer mixing drum, its profile is made of charging awl 2, one reclaiming cones 7 and stack shell 3; The inlet of charging awl 2 has charging aperture circle 1, and the outlet of reclaiming cone 7 has the outer wall of discharging opening end plate 8, lasso 9, oil pipe import 11 and discharging circle 10, stack shell 3 that the spike 22 of 2 circle raceways 4 and stationary drive gear circle is arranged; It is characterized in that:

In the baking zone that A, charging aperture circle 1, charging awl 2 and reclaiming cone 5 are formed 3 kinds of oven dry blades 12,15,16 and discharge blade 14 are arranged;

In the stirring area that B, charging awl 6, reclaiming cone 7 and discharging opening end plate 8, discharging circle 10 are formed 2 kinds of stirring vanes 18,19, backgauge blade 21 and discharge blade 20 are arranged.

2, mixing drum according to claim 1 is characterized in that: the oven dry blade 12 in the baking zone is dextrorotation blade, all left-handed blade of oven dry blade 15,16 discharge blades 14, and same blade is 2, the 180 ° of layouts of being separated by on the circumference of stack shell 3 inwalls.

3, mixing drum according to claim 1, it is characterized in that: stirring vane 18 is left-handed blade in the stirring area, backgauge blade 21 stirring vanes 19 and discharge blade 20 are the dextrorotation blade, and blade of the same race is 2, the 180 ° of layouts of being separated by on the circumference of stack shell 3 inwalls.

4, power is characterized in that according to claim 1,2 described mixing drums: oven dry blade 12,15,16 can have reinforced blade 13,17 in the baking zone.