CN2537731Y

CN2537731Y - Pitch heater

Info

Publication number: CN2537731Y
Application number: CN 02216960
Authority: CN
Inventors: 吴东炎
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-19
Filing date: 2002-04-19
Publication date: 2003-02-26
Anticipated expiration: 2012-04-19

Abstract

The utility model discloses an asphalt heating device. The structure is that a roller with a spiral groove is arranged in the inner cavity of the material box. An end cover and a material discharging pipe are arranged on the side wall of the material box at one end of the roller, the material discharging pipe is respectively connected with the material spraying pipe and the return pipe through a control valve, and the other end of the return pipe is connected with the material box; a pre-heating component is arranged on the material box wall near to the roller. The heating device melts asphalt through the heat generated by extrusion and friction with the help of extremely good cement ability and ductility under the enforced rotation of the roller, the asphalt is conveyed through the spiral groove, and the device can work continuously. Compared with the prior technical products, the device requires no heat transmission medium, so the thermal efficiency is high, and in particular the utility model has the advantages that the device structure is simple, the volume is small, the investment is less, and the mobility is strong.

Description

A kind of heater of pitch

Affiliated technical field

The utility model belongs to a kind of mechanical device that is used to add heated bitumen.

Background technology

As everyone knows, in constructing bituminous highway road surface process, the production of bituminous material, storing and use all need to heat, and make it the temperature that reaches certain.Not only to consume a large amount of thermals source and add heated bitumen, if improper functional performance, engineering cost, production safety and the contaminated environment that also can directly influence pitch of heating means.So, adopt suitable heating means, to improving economic results in society crucial meaning is arranged.

Traditional heating means have: heating means such as naked light, heavy fuel oil, water, conduction oil, solar energy and infrared radiation.And utilize asphalt heater that above-mentioned heating means make in actual applications, have following defective: the thermal efficiency is low, the functional performance instability of pitch, easily cause environment pollution, one-time investment big.

Summary of the invention

For overcoming the deficiency that existing apparatus exists, the utility model provides a kind of structure novel asphalt heater.This device adds heated bitumen, and not only to have the functional performance of thermal efficiency height, pitch stable, and can not cause environment pollution, particularly has the simple small investment of equipment, advantage that use cost is low.

Adopted following technical proposals for solving the problems of the technologies described above the utility model:

The structural feature of this asphalt heater is, is equipped with a cylinder that has external spiral groove at the inner chamber of a hopper; Be equipped with end cap and discharge nozzle on the hopper sidewall of cylinder one end, discharge nozzle communicates with stuff-spraying pipe, return duct respectively through control valve, and the other end of return duct communicates with hopper; Be equipped with pre-warmware near on the hopper wall of cylinder.This heater utilizes the fabulous caking property of pitch, ductility, and under the pressure of cylinder was rotated, heat fusing pitch was given birth in the extruding friction, and be delivered to discharge nozzle by helicla flute, through stuff-spraying pipe output, when stuff-spraying pipe is closed, be back to hopper through return line flow, this device can be moved in continuous operation.

The priority scheme of this device is, cylinder is a hollow straight pipe, and its inwall is stepped bore footpath shape, and the bigger inwall in aperture is provided with inner spiral groove, and this inner spiral groove is opposite with the external spiral groove direction of cylinder; A central rotating shaft that is installed on the bearings at both ends places in the cylinder chamber, the small-bore inwall coupling of the external diameter of its part axle and cylinder is also affixed, the periphery of another part axle is provided with external spiral groove, and this external spiral groove is opposite with the inner spiral groove direction of cylinder, and leaves certain clearance between the two; Be equipped with an axle sleeve that sets firmly in this gap; The material chamber that forms between the end of discharge nozzle and central rotating shaft and end cap communicates.The heater of this structure can shorten drum length and diameter effectively, under same performance, makes the device of making small and exquisite.

Pre-warmware can be heating, high temperature tracheae etc.

Beneficial effect: this device utilizes the intrinsic adhesive property of pitch, extruding the natural science principle that friction generates heat and makes.Compare with prior art products, do not need heat catalysis, thus thermal efficiency height, the simple small investment of device structure.

The drawing explanation

Fig. 1 is that the master of an embodiment looks the broken section structural representation;

Fig. 2 looks the broken section structural representation for the master of another embodiment;

Fig. 3 is applied in plan structure schematic diagram on the pouring machine of cement pavement shrinkage joint for this device.

The specific embodiment

Sequence number is represented respectively among the figure: handrail 1, handle 2, gasoline engine 3, clutch 4, wheel 5, external spiral groove 6, hopper 7, stack 8, driving-chain 9, clutch control lever 10, insulation layer 11, return duct 12, discharge nozzle 13, control valve 14, feed nozzle 15, exhaust opening 16, end cap 17, refluence chamber 18, axle sleeve 19, pre-warmware 20, cylinder 21, back cavity 22, central rotating shaft 23, left shaft holder 24, sprocket wheel 25, holder 26, discharging chamber 27, small-bore inwall 28.

Referring to Fig. 1, this is an embodiment.The circular drum 21 that the periphery is provided with helicla flute 6 is arranged on the bottom, chamber of hopper 7.The front and back of hopper 7 roughly are " U " font to the cross section, bottom arc transition and cylinder 21 couplings; Cylindric protrusion is made in its bottom, the right, barrel bore and cylinder 21 external diameters coupling, and this part is the high-temperature region.Cylinder 21 closed at both ends also are shelved on the bearing right side end cap 17 double as right-hand axis bearings through end axle.Leave the material chamber between end cap 17 inwalls and cylinder 21 the end wall here, this material chamber communicates with the discharge nozzle 13 of end cap 17 bottoms, so that the helicla flute 6 of cylinder 21 is exported the finished product asphalt delivery during to this material chamber through discharge nozzle 13.Discharge nozzle 13 communicates with return duct 12, stuff-spraying pipe and feed nozzle 15 thereof through control valve 14.The end axle in cylinder 21 left sides connects sprocket wheel 25 after by bearing support 24.Whole device is located on the holder 26, and the inwall of part hopper 7 is provided with insulation layer 11.Hopper 7 bottoms dispose pre-warmware 20, and pre-warmware 20 kinds can be set as required, can be heatings etc., and its effect mainly is when temperature is low, and the residual bitumen in the hopper is implemented preheating, starts smoothly with the subsidiary book device.Here be an interlayer (return duct 12 also is arranged in this interlayer, and communicates with hopper 7), it communicates with external high temperature gas generator efferent duct, and this interlayer is as the passage of high-temperature gas, and gas is discharged through exhaust opening 16.

The course of work of this device is: power drives cylinder 21 rotations through driving-chain, drive 25, charge door through " U " font hopper 7 adds pitch, pitch is under the comprehensive extruding of the helicla flute 6 of cylinder 21, hopper 7 inwalls, friction effect, gradually heating give birth to temperature, gradually move to right be delivered to the material chamber after, to stuff-spraying pipe, from feed nozzle 15 ejections, control valve 14 determines its flow directions then from discharge nozzle 13 rows, when closing stuff-spraying pipe, finished product pitch is back to hopper 7 through return duct 12.Change the flow direction that the spiral fluted direction of rotation can change pitch, therefore, discharge nozzle etc. is arranged on left end also can plays same function.

Referring to Fig. 2, this is another embodiment of this device.Cylinder 21 is a hollow straight pipe, and its inwall is stepped bore footpath shape, and the bigger inwall in aperture is provided with inner spiral groove, and this inner spiral groove is opposite with the external spiral groove direction of cylinder 21.A central rotating shaft 23 that is installed on the bearings at both ends places in cylinder 21 chambeies, the external diameter of its part axle and the small-bore inwall of cylinder 21 28 coupling and affixed (present embodiment is affixed through keyway), the periphery of another part axle is provided with external spiral groove, this external spiral groove is opposite with the inner spiral groove direction of cylinder 21, and leaves certain clearance between the two; Insert an axle sleeve 19 (when the center rotating shaft drove the cylinder rotation, this axle sleeve remained static) that is installed on the end cap 17 in this gap; The material chamber that forms between the right-hand end of discharge nozzle 13 and central rotating shaft 23 and end cap communicates.

The course of work of this embodiment device is: power drives cylinder 21 rotations through driving-chain, drive 25, charge door through " U " font hopper 7 adds pitch, pitch is under the comprehensive extruding of the external spiral groove 6 of cylinder 21, hopper 7 inwalls, friction effect, gradually heating give birth to temperature, gradually move to right be delivered to refluence chamber 18 after, under cylinder 21 inner spiral grooves and axle sleeve 19 outer wall effects, carry left again.After pitch arrives back cavity 22, under the external spiral groove and axle sleeve 19 inwall effects of central rotating shaft 23, material is delivered to discharging chamber 27 from discharge nozzle 13 outputs.Following process is identical with last embodiment, repeats no more.

Referring to Fig. 3, this is that this device is applied in the plan structure schematic diagram on the pouring machine of cement pavement shrinkage joint.Describe clearly among the figure in the parts sequence number explanation in front, no longer repeat at this.The stack 8 of gasoline engine 3 is tightly connected with the pre-thermofin of this device and communicates; Gasoline engine 3 produces power and drives sprocket wheel by output shaft through driving-chain 9, rotates thereby drive central rotating shaft, cylinder or cylinder, makes this device operation work.

Change the driving-chain rotating speed, can obtain the finished product pitch of different temperatures.

Certainly, utilize the extruding principle that friction generates heat, can also be made into the different device that is similar to the distortion of this heater, also should be considered as falling into the application's protection domain.

Claims

1, a kind of heater of pitch is characterized in that: be equipped with a cylinder (21) that has external spiral groove (6) in the inner chamber of a hopper (7); Be equipped with end cap (17) and discharge nozzle (13) on hopper (7) sidewall of cylinder (21) one ends, discharge nozzle (13) communicates with stuff-spraying pipe, return duct (12) respectively through control valve (14), and the other end of return duct (12) communicates with hopper (7); Be equipped with pre-warmware (20) near on hopper (7) wall of cylinder (21).

2, the heater of a kind of pitch according to claim 1, it is characterized in that: cylinder (21) is a hollow straight pipe, its inwall is stepped bore footpath shape, and the bigger inwall in aperture is provided with inner spiral groove, and this inner spiral groove is opposite with external spiral groove (6) direction of cylinder; A central rotating shaft (23) that is installed on the bearings at both ends places in cylinder (21) chamber, small-bore inwall (28) coupling of the external diameter of its part axle and cylinder (21) is also affixed, the periphery of another part axle is provided with external spiral groove, this external spiral groove is opposite with the inner spiral groove direction of cylinder (21), and leaves certain clearance between the two; Be equipped with an axle sleeve that sets firmly (19) in this gap; The material chamber that forms between the end of discharge nozzle (13) and central rotating shaft (23) and end cap (17) communicates.

3, the heater of a kind of pitch according to claim 1 is characterized in that: pre-warmware (20) can be electrothermal part, high temperature tracheae etc.