CN2871624Y

CN2871624Y - Multifunctional comprehensive maintenance vehicle on asphalt pavement

Info

Publication number: CN2871624Y
Application number: CN 200520049892
Authority: CN
Inventors: 成任松
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-29
Filing date: 2005-04-29
Publication date: 2007-02-21
Anticipated expiration: 2015-04-29

Abstract

The utility model discloses a multi-purpose composite maintenance vehicle for asphalt pavement, which is characterized in that a vehicle chassis serves as the foundation body, a fuel supply system is arranged in the front of the body, after which the burning device, aggregate lifting device and baking device are sequentially arranged, a mixing device is arranged at the end of the main body, the mixing device is fixed to the port of the baking device, and the diesel-driven device, electric control cabinet and asphalt tank are arranged in the body. Based on the technical scheme of coal and oil firing device, The utility model eliminates the defect that no universality is available for the choice of fuels and solves the problem that oil-only construction consumes more oil, featuring compact construction, good bulking property, more functions, high integrity, reliable operation and high efficiency, PLC automation control, and significant energy efficiency and consumption reduction. For production of each ton of finished material, more than 10 yuan/ton is saved when coal is used in the place of oil. Furthermore, the vehicle provides simple operation, easy maintenance and longer service life, and can be widely used in the maintenance of various types of asphalt road pavement.

Description

A kind of multifunctional comprehensive asphalt pavement maintanance truck

Technical field

The utility model relates to a kind of maintenance of surface equipment, particularly a kind of kerosene dual-purpose type multifunctional comprehensive asphalt pavement maintanance truck that is provided with burner, drying unit and pressure mixing plant.

Background technology

Existing asphalt pavement maintanance truck can be divided into two big classes basically: a class is mixed and stirred pavement maintenance truck for the drum-type scene, and another kind of is the in-situ heat regeneration asphalt pavement maintanance truck, and this kind cared the car and can not be mixed and stirred at the scene, thus be equipped with material-storing box, and carry the finished product material.And the drum-type scene is mixed and stirred pavement maintenance truck and can be divided into two classes: a class is single cylinder, be that the oven dry of mineral aggregate is mixed and stirred in a cylinder and finished, pitch metering employing time control, error in dipping is very big, be not with dust arrester, be equipped with the pitch case, pitch adds the heating of thermal recovery electrothermal tube, and heating effect is very undesirable, electrical equipment control adopts simple switch control, burning or aging phenomenon appears in pitch easily, can not mix and stir out the satisfactory material that mixes and stirs, and yield poorly.Another kind of is one two Room, more preceding a kind of being improved of this kind equipment, but it is many to have problems.One two Room, though drying chamber with mix and stir that the chamber is relative to be separated, oven dry with mix and stir and can not carry out simultaneously, utilization rate of equipment and installations reduces, output descends naturally.To be ore charge fall in the cylinder of rotation the mode of mixing and stirring of this kind maintenance equipment voluntarily, wrapped up in depositedly by pitch, and its shortcoming is that residual water content is higher.Transmission mechanism adopts the rubber wheel frictional drive, rubber tire weares and teares easily, wears out, metering device adopts the ball float limit switch, error is big, the pitch case adds the heating of thermal recovery electrothermal tube, and firing rate is slow, and electrical control system adopts simple sequential control, intelligent degree is low, and fault-free display alarm function and operation are not directly perceived.Oil burner is all adopted in the ore charge of drum-type asphalt pavement maintanance truck oven dry at present, fuel used Hobson's choice, and when fuel price was higher, its operating cost was also higher.

Summary of the invention

At above-mentioned situation, but the purpose of this utility model is to provide a kind of coal but also oil firing and compact conformation, good, the tangible multifunctional comprehensive asphalt pavement conserving of energy-saving effect equipment of versatility of not only can having burnt.

For achieving the above object, a kind of multifunctional comprehensive asphalt pavement maintanance truck of the present utility model, select for use automobile chassis to make basic main body, take in this body front part and to lay a fuel feed system, thereafter arrange successively burner, aggregate lifting appliance, drying unit, lay a mixing plant at the main body afterbody, this mixing plant and drying unit interface connect firmly, connect firmly the top at place in this interface, one power set are laid in the body front part left side, one electrical control cabinet is laid in main body middle part one side, and an asphalt tank is laid in main body middle part one side or two sides.

For implementation structure optimization, improve utilization rate of equipment and installations and product quality, reach energy-saving and cost-reducing and reliably, work efficiently, its further step is:

Described fuel feed system is horizontal fuel feed system, this horizontal fuel feed system is laterally to lay, it is by feeding machanism, disintegrating mechanism, powder feeding mechanism is formed, described feeding machanism comprises fuel hopper, fuel material mouth mechanism and spiral propellant feed mechanism, described disintegrating mechanism is provided with three grades at least, be equipped with the pulverizing impeller in these three grades of disintegrating mechanisms, pulverize leaf angle and abrasion-proof backing block, described powder feeding mechanism comprises a high-voltage high-speed fan and powder feeding flexible pipe, fine powder after this high-voltage high-speed fan will be pulverized send with wind from this powder feeding mechanism housing and blows out, and through described powder feeding flexible pipe powder is sent in the described burner again.

Described burner comprises oil/coal dual-purpose nozzle mechanism, fire door end cap, burner hearth, wind sector, middle transition hopper, and described oily coal nozzle mechanism is provided with two fuel nozzles at least, and one of them is used for igniting, and one is used for burning; Described fire door end cap is established the fire door end cap housing, whirlwind awl, adpting flange, glory hole, main air duct tube connector, the powder nozzle that is provided with special-shaped refractory brick in the described burner hearth and matches, automatic ignition device, wind cover, cyclone.

Described aggregate lifting appliance comprises the lifting hopper, promotes track and promotes transmission mechanism, the automatic blanking mechanism that described lifting hopper is provided with automatic hoisting mechanism and cooperates with the middle transition hopper.

Described drying unit comprises roller tube and promotes blade, helical blade, discharge blade and sealing ring that the outside of described roller tube is provided with gear ring and spacing annulus.

Described mixing plant adopts horizontal cloth if vertically lay, and laterally lays and selects the single horizontal shaft type mixing plant for use, vertically lays and selects the drum-type mixing plant for use.

Described mixing plant and drying unit interface connect firmly the top at place, are provided with a dust arrester, are provided with a positive displacement Bitumen Auto Measurement Device at the top of mixing plant.

Described power set are diesel generating set.

Described electrical control cabinet comprises a programmable control system and automatic ignition system, is provided with the PLC programmable control chip in the programmable control system.

The multi-faceted technical scheme that drying unit and mixing plant and realization PLC are controlled is automatically laid in the utility model employing coal, oily dual-purpose type burner and combination apolegamy, overcome the defective of the no versatility of fuel selection, solved difficult problems such as single fuel combustion type structure fuel consumption is bigger.Make and the utlity model has compact conformation, good integrity, mobility is good, and function is many, comprehensive strong, reliable operation efficient height, superior product quality, PLC controls automatically, and is obviously energy-saving and cost-reducing, is that fuel production finished product material per ton is that fuel production finished product material per ton can be saved 17 yuan/ton than adopting with the fuel oil as adopting with the coal, and simple to operate, easy to maintenance, prolong application life.Can be widely used in the maintenance of various flexible pavements.

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

Description of drawings

Fig. 1 is the utility model overall structure schematic diagram.

Fig. 2 is the plan structure schematic diagram of Fig. 1.

Fig. 3 is three grades of disintegrating mechanism schematic diagrames in the utility model.

Fig. 4 is the burner structural representation in the utility model.

Fig. 5 is the aggregate lifting appliance structural representation in the utility model.

Fig. 6 is the automatic ignition system principle schematic in the utility model.

Fig. 7 is the connection diagram of positive displacement Bitumen Auto Measurement Device and system.

Fig. 8 is the automatic gauge schematic diagram of positive displacement Bitumen Auto Measurement Device.

The specific embodiment

In conjunction with the accompanying drawings, a kind of multifunctional comprehensive asphalt pavement maintanance truck, select for use automobile chassis to make basic main body 1, take in the anteriomedial of this main body 1 and to lay a horizontal fuel feed system 2, this horizontal fuel feed system 2 is laterally to lay, it is by feeding machanism 21, disintegrating mechanism 22, powder feeding mechanism 23 is formed, disintegrating mechanism 22 is provided with three grades at least, be equipped with the pulverizing impeller in these three grades of disintegrating mechanisms, pulverize leaf angle and abrasion-proof backing block, powder feeding mechanism 23 comprises a high-voltage high-speed fan and powder feeding flexible pipe, after powder feeding mechanism 23, connect a burner 3, fine powder after will being pulverized by the high-voltage high-speed fan send with wind from powder feeding mechanism 23 housings and blows out, and powder is sent into the oil that is arranged in the burner 3 through the powder feeding flexible pipe again, the fuel oil that coal dual-purpose nozzle mechanism 31 sprays mixes.This oil, coal dual-purpose nozzle mechanism 31 are provided with two at least, and one is used for igniting, and one is used for burning.In order to utilize the advantage of China's producing coal, reach favorable economic benefit, the disintegrating mechanism 22 of present embodiment is selected coal pulverizer for use, so powder is the ature of coal powder, two fuel nozzle mechanisms 31 is set has solved and both can be used for lighting a fire the coal-fired versatility problem that also can be used for fuel oil.Burner 3 also is provided with fire door end cap 32, burner hearth 33, wind sector 34 etc. except oil/coal dual-purpose nozzle mechanism 31.Fire door end cap 32 comprises end cap housing, whirlwind awl, wind cover, adpting flange, glory hole and main air duct tube connector.Burner hearth 33 is established adpting flange, Lu Quan, burner hearth inner housing, furnace enclosure body, furnace outlet flange, seam circle and refractory brick and middle transition hopper 35.The furnace enclosure body connects the secondary air channel in the wind sector 34, the adpting flange snap close sealing of the adpting flange of burner hearth 33 and fire door end cap 32, and its suction flange and seam circle connect firmly, the supporting installation of seam circle of this seam circle and drying roller device 5.Wind sector 34 is provided with blast fan, blower fan outlet(discharge) flange joint, wind speed and wind adjustable valve joint, and main air deferent, secondary wind channel tube, wherein the main air duct tube connector of wind speed and wind adjustable valve joint and fire door end cap 32 flexibly connects, can adjust the size of whirlwind amount in the fire door end cap 32 by the wind speed and wind adjustable valve, make coal dust in burner hearth 33, reach fast cookoff and close oil-firing system simultaneously.

Aggregate lifting appliance 4, drying unit 5 are arranged in after the burner 3, aggregate lifting appliance 4 comprises and promotes hopper 41, promotes track 42 and promote transmission mechanism 43 and blanking track and pin gear speed reducer, and this lifting hopper 41 comprises automatic hoisting mechanism such as elevator bucket, pulley mechanism, movable pulley mechanism and the automatic blanking mechanism that cooperates with middle transition hopper 35.

It promotes hopper 41 automatic decline mechanism controls principles: be in when aerial when promoting hopper 41, wire rope is stressed to be tightened, and the control travel switch is touched, allows the motor operation, lands until promoting hopper 41; Drop to ground when promoting hopper 41, wire rope is lax, restores to the original state at the spring action lower stroke switch, and motor power is cut off, and promotes hopper 41 operations and stops automatically.

In order to improve the automaticity of blanking, middle transition hopper 35 also is provided with a touch-type automatic blanking mechanism.When promote hopper 41 under pin gear speed reducer drives when promoting track and rise to middle transition hopper 35 positions, the switch of touch-type automatic blanking mechanism can be rushed open by the touching piece on the middle transition hopper 35 automatically and open 41 in lifting hopper, and the aggregate in the lifting hopper 41 is in middle transition hopper 35 falls into drying unit 5.

Drying unit 5 comprises roller tube 51, promotes blade, helical blade, discharge blade and sealing ring, and the outside of roller tube 51 is provided with gear ring and spacing annulus 511.Be fixed on the motor on the crossbeam, give reductor with transmission of torque, thereby pass to roller tube 51 rotations that the gear ring 511 that is fixed on the roller tube 51 drives drying unit 5 through final gear again by a pair of belt pulley.When just changeing, aggregate is dried, during counter-rotating hot aggregate be entered mixing plant 6.Outside gear ring 511 at roller tube 51 is welded with the axial float of the spacing annulus of a circle with restriction cylindrical shell 51.

Mixing plant 6 laterally cloth if vertically lay.When laterally laying, selects by mixing plant 6 the single horizontal shaft type mixing plant for use, this mixing plant 6 comprises transmission device, agitator, a mixing bowl, shedding mechanism, oil supply system, its agitator is mainly by shaft, mixing arm, blade and shaft end seal are formed, in order to solve the problem that aggregate adheres to easily, also be provided with the side rubbing board on the mixing arm, blade links to each other by slotted hole with bolt with mixing arm, blade is the adjustable clearance type blade, this adjustable clearance type blade can be by adjusting the gap of each blade and a mixing bowl circular arc liner plate and end face liner plate, guarantee that the gap evenly and be limited within the 6mm, shedding mechanism comprises Dump gate and cylinder, and this Dump gate and cylinder are controlled the unlatching of closing of Dump gate or cylinder by two-position five-way list electric control valve.

The mixing plant 6 of present embodiment is vertically to lay, its mixing plant 6 is selected the drum-type mixing plant for use, this drum-type mixing plant 6 comprises roller tube, promotes blade, bulk cargo blade, adpting flange, seam circle etc., the outside of roller tube is provided with gear ring and spacing annulus, be fixed on the motor of crossbeam, by a pair of belt pulley rotating speed is passed to reductor, thereby pass to the roller tube rotation that the gear ring that is fixed on the roller tube drives mixing plant through final gear again.When adopting the layout of drum-type mixing plant 6, the drying roller cylindrical shell of drying unit 5 is fixing with being connected through adpting flange of the mixing drum cylindrical shell of mixing plant 6.Positive and negative transferring by mixing drum drives the drying roller rotating, thereby saved parts such as gear ring, motor, reductor and gear drive, is a more excellent laying scheme.In order to cut down the consumption of energy, improve output, the drying roller that prevents drying unit 5 is in the dry combustion method when expecting that mixing drum and heat material stir with pitch in mixing drum of reversing, also be provided with discharge blade in the mixing drum, can only stir in the mixing drum, the mixing drum rotating can not discharging.Behind the drying roller punishment in advance, just can charging, thus avoided the oven dry dry combustion method effectively.The discharging of mixing and stirring material in the mixing drum for convenience, set up discharging mechanism in the mixing drum back, it comprises reclaiming plate, cylinder, leverage, and reclaiming plate reaches in the mixing drum, this reclaiming plate, cylinder are controlled the unlatching of closing of discharge door or cylinder by two-position five-way list electric control valve.When mixing and stirring material in the mixing drum when having mixed, cylinder is opened, and reclaiming plate descends, then discharging; When cylinder was not opened, reclaiming plate rose, and then closes discharging.

Shown in accompanying drawing, mixing plant 6 and drying unit 5 interfaces connect firmly the place above, be provided with a dust arrester 10, be provided with a positive displacement Bitumen Auto Measurement Device 60 at the top of mixing plant 6.

Dust arrester 10 is made up of air-introduced machine, spiral case dedusting bucket and a cover multicyclone deduster, air-introduced machine employing V-Belt Drive, and cyclone dust collectors are by multi-cyclone dedusting tube, dust bucket and unload dirt mechanism etc. and form.Present embodiment adopts the negative pressure suction-type, can reduce dust to air-introduced machine wearing and tearing, prolong the application life of air-introduced machine, and realized automatic ash removing.

Top at mixing plant 6 is provided with batching metering device, and the batching metering device of present embodiment adopts positive displacement Bitumen Auto Measurement Device 60.This positive displacement Bitumen Auto Measurement Device 60 comprises batch box 61, is arranged on the fuel outlet valve and the turnover oil pipe 611 of batch box bottom, bitumenpump and motor, oil sump 62, liquid level control switch 63 and fluid level controller 64, this fluid level controller 64 comprise balance weight 641, ball float 642, ball float position limiting slide block 643, adjust screw 644 and fuel-flow control bar 645.Its measuring principle is shown in Fig. 7,8: when carrying out fuel-flow control: unclamp earlier and adjust screw 644e, the position of mobile fuel-flow control bar 645, ball float position limiting slide block 643 changes, thereby change ball float 642 mobility scales, promptly metered volume changes, so oil mass is adjusted.

The automatic gauge principle as shown in drawings.1. when not having oil in the batch box 61, the ball float 642 on fluid level controller 64 forks is in the extreme lower position of batch box 61 because of deadweight, and 64 control of fluid level controller oil pumping motor liquid-level switch 63 disconnects, and forbids oil spout.2. get oily machine operation and continuous pump oil to batch box 61 in, ball float 642 constantly moves up with liquid level rising in the bucket, and the fork of fluid level controller 64 is in previous status all the time and does not become in this process.3. when liquid level rose to desired location, under ball float 642 effects, the fork position of fluid level controller 64 was changed, 64 control of fluid level controller oil pumping motor liquid-level switch 63 disconnects, and forbids injecting pitch in bucket 61, simultaneously, control oil spout motor liquid-level switch 63 closures allow oil spout.4. the oil spout motor is constantly toward mixing plant pump oil, and liquid level descends in the batch box 61, and ball float 642 is also along with decline, the fork of fluid level controller 64 is in previous status all the time and does not become in this process, drop to bucket during 61 ends up to liquid level, the fork state just changes, and realizes the metering of next circulation.Oil spout, get oily signal and provide by programmable logic controller, when the drying roller cylindrical shell 51 of drying unit 5 was in counter-rotating punishment in advance state, programmable logic controller generation fuel injection signal was if this moment, batch box 61 interior pitches reached setting value, then control liquid-level switch 63 closures of oil-injection machine, allow oil spout, drop to minimum point until pasta, the fluid level controller fork turns over bar, control oil spout motor liquid-level switch disconnects, stop oil spout, the liquid-level switch closure that oily motor is got in control allows to get oil.When programmable logic controller sends when getting oily signal, in right side, main body middle part asphalt tank 9, get in the oil input batch box 61, reach the oil mass setting value, fork overturns once again, gets oil and stops, and waits for oil spout, comes back to state 3., so again and again periodic duty.

Power taking for convenience and the better mobility of realization, power set 7 are selected the diesel generating set of coupling for use, and these power set 7 are laid in the body front part left side.Get oil and heating for convenience, asphalt tank 9 is laid in main body middle part one side or two sides.

Electrical control cabinet 8 comprises a programmable control system and automatic ignition system.Automatic ignition system mainly is made of firing circuit and high-pressure oil passage.Electrion spark 831 formations that firing circuit comprises ignition controller 81, ignition transformer 82, discharge spark plug 83 and produces.High-pressure oil passage comprises fuel tank 84, strainer 85, high-pressure diesel pump 86, reducing valve 87, oil pressure gauge 88, electromagnetic valve 89, pulverizing nozzle 80 and atomized fuel 801.Utilize ignition transformer 82 to produce the tiny atomized fuel 801 realization auto-ignition combustions that electrion spark 831 ignites and produces, mixes with air through pulverizing nozzle 80.

Programmable control system is provided with a PLC programmable control chip, and this chip and integrated package electromagnetic valve integral installation control can guarantee the utlity model has high efficiency and high reliability work, and multiple protection functions, fault alarm function, but also can remote control.

Operating principle of the present utility model is: igniting, metering, lifting, oven dry, punishment in advance, pressure stirring, discharging.At first mineral mixture ratio such as the stone of different-grain diameter, sand are sent into lifting hopper 41 in the stock ground, and send in the cylinder 51 of drying unit 5, the coal of being lighted by the automatic ignition device of automatic ignition system, the thermal-flame that oily dual-purpose spiral-flow type burner 3 is produced are sent into drying roller through the blast fan air blast, begin to reach the material temperature of setting to carrying out heating, drying by the cold aggregate in the drying roller of Motor Drive rotation; After drum buffering is static, motor head roll reverse rotation again, and by in the cylinder counter-rotating helical blade aggregate is delivered in the mixing plant 6, fully mix, wrap up in deposited with hot aggregate by the heated bitumen of pitch bucket 61 ejections of projection electronic weighing and the breeze of being sent by the breeze bucket of electronic-weighing in mixing plant 6 this moment, in mixing plant 6, form " boiling effect ", breeze forms the pasty state adhesive jointly as inserts and pitch and is filled between the aggregate, thereby increased the adhesion strength between sand, the building stones, improved the concrete product quality; Last discharging.The whole operation process is controlled automatically by the programmable logic controller in the switch board.

Below only be preferred embodiment of the present utility model, according to above-mentioned design of the present utility model, those skilled in the art also can make various modifications and conversion to this.For example, the layout of intelligent automatic control and integral installation control of integrated package electromagnetic valve and overall plan also has the fault demonstration, reports to the police and protects type selecting of processing capacity and each equipment or the like automatically.Yet similar this conversion and modification all belong to scope of the present utility model.

Claims

1, a kind of multifunctional comprehensive asphalt pavement maintanance truck, it is characterized in that selecting for use automobile chassis to make basic main body (1), laying one fuel feed system (2) takes in this main body (1) front portion, thereafter the burner (3) of arranging successively, aggregate lifting appliance (4), drying unit (5), lay a mixing plant (6) at main body (1) afterbody, this mixing plant (6) connects firmly with drying unit (5) interface, one power set (7) are laid in the body front part left side, one electrical control cabinet (8) is laid in main body middle part one side, and an asphalt tank (9) is laid in main body middle part one side or two sides.

2, a kind of multifunctional comprehensive asphalt pavement maintanance truck according to claim 1, it is characterized in that described fuel feed system (2) is horizontal fuel feed system, this horizontal fuel feed system (2) is laterally to lay, it is by feeding machanism (21), disintegrating mechanism (22), powder feeding mechanism (23) is formed, described feeding machanism (21) comprises fuel hopper, fuel material mouth mechanism and spiral propellant feed mechanism, described disintegrating mechanism (22) is provided with three grades at least, be equipped with the pulverizing impeller in these three grades of disintegrating mechanisms, pulverize leaf angle and abrasion-proof backing block, described powder feeding mechanism (23) comprises a high-voltage high-speed fan and powder feeding flexible pipe, fine powder after this high-voltage high-speed fan will be pulverized send with wind from this powder feeding mechanism (23) housing and blows out, again in described burner (3) sent into powder by described powder feeding flexible pipe.

3, a kind of multifunctional comprehensive asphalt pavement maintanance truck according to claim 1, it is characterized in that described burner (3) comprises oil/coal dual-purpose nozzle mechanism (31), fire door end cap (32), burner hearth (33), wind sector (34), middle transition hopper (35), described oily coal nozzle mechanism (31) is provided with two fuel nozzles at least, one of them is used for igniting, and one is used for burning; Described fire door end cap (32) is established the fire door end cap housing, whirlwind awl, adpting flange, glory hole, main air duct tube connector, the powder nozzle, automatic ignition device, wind cover, the cyclone that are provided with special-shaped refractory brick in the described burner hearth (33) and match.

4, a kind of multifunctional comprehensive asphalt pavement maintanance truck according to claim 1, it is characterized in that described aggregate lifting appliance (4) comprises lifting hopper (41), promotes track (42) and promotes transmission mechanism (43), the automatic blanking mechanism that described lifting hopper (41) is provided with automatic hoisting mechanism and cooperates with described middle transition hopper (35).

5, a kind of multifunctional comprehensive asphalt pavement maintanance truck according to claim 1, it is characterized in that described drying unit (5) comprises roller tube (51) and promotes blade, helical blade, discharge blade and sealing ring, the outside of described roller tube (51) is provided with gear ring and spacing annulus (511).

6, a kind of multifunctional comprehensive asphalt pavement maintanance truck according to claim 1, it is characterized in that described mixing plant (6) adopts horizontal cloth if vertically lay, laterally lay and select single horizontal shaft type mixing plant (6) for use, vertically lay and select drum-type mixing plant (6) for use.

7, a kind of multifunctional comprehensive asphalt pavement maintanance truck according to claim 1, it is characterized in that described mixing plant (6) and drying unit (5) interface connect firmly the top at place, be provided with a dust arrester (10), be provided with a positive displacement Bitumen Auto Measurement Device (60) at the top of mixing plant (6).

8, a kind of multifunctional comprehensive asphalt pavement maintanance truck according to claim 1 is characterized in that described power set (7) are diesel generating set.

9, a kind of multifunctional comprehensive asphalt pavement maintanance truck according to claim 1 is characterized in that described electrical control cabinet (8) comprises a programmable control system and automatic ignition system, is provided with the PLC programmable control chip in the programmable control system.