CN104420411A - Constant-temperature control device and method for emulsified asphalt tank of asphalt spraying and paving machine - Google Patents
Constant-temperature control device and method for emulsified asphalt tank of asphalt spraying and paving machine Download PDFInfo
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- CN104420411A CN104420411A CN201310379916.8A CN201310379916A CN104420411A CN 104420411 A CN104420411 A CN 104420411A CN 201310379916 A CN201310379916 A CN 201310379916A CN 104420411 A CN104420411 A CN 104420411A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/21—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for simultaneously but separately applying liquid material and granular or pulverulent material, e.g. bitumen and grit, with or without spreading ; for filling grooves and gritting the filling
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- Road Paving Machines (AREA)
Abstract
The invention discloses a constant-temperature control device and method for an emulsified asphalt tank of an asphalt spraying and paving machine, which are used for achieving functions of heating and heat preservation of an emulsified asphalt material. In the constant-temperature control technology, a temperature sensing and temperature control module is adopted, and the temperature of emulsified asphalt is displayed in real time and the on and off of a heating rod can be automatically controlled by using a method of controlling high voltage with low voltage, so as to guarantee the stability of temperature; the constant-temperature control device comprises a controller, a touch display device, a temperature sensor, a relay, a three-phase alternating current power generator, a circuit breaker, a three-phase alternating current contactor, a knob switch, an indicator lamp, a heating rod group and a temperature switch. Maintaining the emulsified asphalt material at a proper temperature is beneficial to spraying and pavement adhesion, and overhigh temperature enables the emulsified asphalt material to be demulsified and solidified. Therefore, the constant-temperature control technology and device are an important constituent of the asphalt spraying and paving machine, the normal working operation of the machine can be guaranteed, a waste of materials can be prevented, and construction quality and economic benefits can be guaranteed.
Description
Technical field
Technical scheme of the present invention belongs to pitch sprinkling paver field, is specifically related to a kind of temperature control equipment and control method thereof of pitch sprinkling paver mulseal tank.
Background technology
Pitch sprinkling paver is a kind of road surface construction machinery realizing modified emulsifying asphalt spread synchronous with bituminous mixture and pave, and it has the tank body storing mulseal, volume is liter more than 2000.Emulsified bituminous materials generally need heat and carry out spraying operation under remaining on 60-70 DEG C of temperature, and the benefit of constructing at this temperature has 2 points, one be viscosity low, easily spray, two is be sprayed onto that de-emulsification speed behind ground is fast, Thief zone; Emulsified bituminous materials can not contact the high temperature of more than 100 DEG C before sprinkling, and at this temperature, mulseal can solidify by breakdown of emulsion, not only cannot spray, even can blocking pipe, damage equipment time serious;
In the past, this kind of equipment many employings conduction oil technology was incubated material in mulseal tank, and its principle is by heating conduction oil, is transmitted to contactless for the heat of oil body in mulseal tank.This technology cannot regulate temperature in asphalt tank in real time, only can carry out limited insulation to the existing temperature of material; And the method needs the parts such as extra increase conduction oil casing, pump and pipeline, cause difficult arrangement, occupy limited space, make unitary construction become complicated, and cost is higher;
In addition, this kind of equipment also adopted the heating and the insulation that are realized material in asphalt tank by the method for gas heating, by arranging combustion pipe in asphalt tank, the heat of fuel gas buring was passed to emulsified bituminous materials.The method of this heating and insulation easily produces inequality of being heated, and the material particularly near combustion pipe is subject to the damage of high temperature breakdown of emulsion, and the energy utilization rate of gas heating is low, not environmentally.
Summary of the invention
The technical problem to be solved in the present invention is: for emulsified bituminous materials in sprinkling construction to the particular/special requirement of temperature, and above-mentioned the deficiencies in the prior art, the invention provides a kind of thermostatically-controlled equipment and control method thereof of pitch sprinkling paver mulseal tank.
This thermostatically-controlled equipment, by TEMP and temperature control modules, uses low-voltage to control high-tension method, and display mulseal temperature also controls the start and stop of heating rod automatically in real time, ensures heating effect and temperature stabilization; This thermostatically-controlled equipment is made up of controller, touch control display, temperature pick up, relay, threephase alternator, line breaker, three-phase ac contactor, rotary switch, indicator lamp, heating rod group, temperature switch.Heating execution unit is the Novel heating rod of nine one group, and the heating power of its single heating rod unit length is low, and the heating rod group of intensive composition had both met the needs of heating, can realize flexible temperature rise again, avoid short-time thermal amount excessive; Meanwhile, the inner integrated temperature switch of heating rod group, can control separately the start and stop of heating rod group, play the effect preventing hot-spot as control assembly.This thermostatic control technology and device control accuracy high, safety and stability, and structure is simple, cost is low, and the feature of environmental protection is good, for construction quality and economic benefit provide guarantee.
The concrete operations scheme that the present invention adopts is:
A kind of thermostatically-controlled equipment of pitch sprinkling paver mulseal tank, be made up of touch control display, temperature pick up, controller, temperature switch, relay, threephase alternator, line breaker, rotary switch, indicator lamp, three-phase ac contactor, heating rod group, send two-way low-voltage control signal from controller, separate two groups of high-pressure work circuit from line breaker; Wherein temperature switch, relay, burner on light, three-phase ac contactor, heating rod group respectively have two, form one group respectively; Two groups is parallel relationship, shares touch control display, temperature pick up, controller, threephase alternator, line breaker, rotary switch, power supply indicator; It is characterized in that, wherein said touch control display, temperature pick up, controller, temperature switch, relay are low-voltage control assembly: touch control display is connected with controller, and communication with it, be used for showing Current Temperatures and input temp setting value in real time; Controller is connected with temperature switch with temperature pick up, and controller detects material temperature in asphalt tank by temperature pick up, and program of being responsible for performs and exports heating signal; Two-way thermal control signals respectively through temperature switch, then is connected with relay respectively, and temperature switch and heating rod group integrate, and temperature near Real-Time Monitoring heating rod group switching centre point, when local temperature is too high, can disconnect thermal control signals; Relay plays the transitional function of low voltage control high pressure, the control signal of coming from temperature switch is connected with the coil of relay, and the constant open contact access high-pressure work circuit of relay, one end of contact is connected with rotary switch, the other end is connected with the coil of three-phase ac contactor, so just can realize two-way low-voltage control signal respectively through temperature switch, and respectively by relay, two groups of high-pressure work circuit be connected.
According to an aspect of the present invention, threephase alternator, line breaker, rotary switch, indicator lamp, three-phase ac contactor, heating rod group are high voltage operation parts: threephase alternator is connected with line breaker, it is by the diesel engine powers of machine itself, export three-phase alternating current, three live wires of three-phase alternating current access in three wiring holes of line breaker one end respectively, phase voltage 230V, line voltage 400V; Line breaker has two ends, and wherein one end is connected with generator, and the other end is divided into two-way, is connected respectively with the contact of three-phase ac contactor, and two-way is parallel relationship, and line breaker shields, and mainly prevents operating circuit from causing accident because of short circuit; Three-phase ac contactor is made up of coil and constant open contact two parts, and coil-end is connected with rotary switch by relay, constant open contact one end connecting breaker, and the other end connects heating rod group and burner on light; Rotary switch and battery main switch, have three constant open contacts, and except two constant open contacts are connected with relay, another one contact is connected with power supply indicator; Indicator lamp is divided into power supply indicator and burner on light two kinds, opening power master switch, and red power supply indicator is lighted, if now three-phase ac contactor constant open contact closes, heating rod group starts heating, and green indicating lamp is corresponding to be lighted; Three-phase ac contactor is for controlling the break-make of main operating circuit.
According to an aspect of the present invention, described electrically heated rod group comprises junction box, adpting flange, internal thread short steel pipes, temperature switch, heating barred body, clip, together with wherein junction box is bolted with adpting flange, internal thread short steel pipes is welded on the center of adpting flange, and temperature switch is arranged on the center of heating rod group by internal thread short steel pipes; Heating barred body is that circular U-shaped heating rod is formed by nine cross sections, and wiring is drawn at the two ends of U-shaped heating rod; The power of every single u-shaped heating rod is equal.
According to an aspect of the present invention, this thermostatically-controlled equipment can regulate temperature in mulseal tank in real time, has heating and heat insulating functions.
According to another aspect of the present invention, a kind of control method applying above-mentioned pitch sprinkling paver mulseal tank thermostatically-controlled equipment, mainly comprise the following steps: first need to check whether diesel engine speed reaches required rotating speed, if do not meet speed conditions, heating signal will be closed automatically, as meet speed conditions then then control system check whether level conditions meets in asphalt tank, if liquid does not reach the height at heating rod group and temperature sensor component place, temperature pick up accurately cannot record fluid temperature, when rotating speed and level conditions all meet, if now heater switch is opened, controller will contrast the setting value transmitted from touch control display with from the real-time detected value that temperature pick up records, return difference value is subtracted when detected value is less than or equal to setting value, controller then can export heating signal, subtract return difference value when detected value is greater than setting value but is less than setting value, it is constant that controller will maintain standing state, i.e. now just still open of being out of heating signal, heating signal is that just continuing of closing closes, when detected value is more than or equal to setting value, controller will cut out heating signal, above control procedure is iterative cycles in director demon performs.
This thermostatically-controlled equipment automaticity is high, temperature in mulseal tank can be regulated in real time to reach desirable, there is heating and heat insulating functions, while protecting the material in mulseal tank from high temperature failure, be also conducive to spraying construction and road surface bonding; And the control accuracy of this constant-temperature control method is high, good stability, structure is simple, and cost is low, and it utilizes electric energy to heat, and also improves the feature of environmental protection; To sum up, this invention is the important component part of pitch sprinkling paver, can ensure the normal operation of machine, prevents the waste of material, for construction quality and economic benefit provide guarantee.
Accompanying drawing explanation
To describe as preferred but nonrestrictive embodiment of the present invention now, these and other features of the present invention, aspect and advantage will become apparent when reading following detailed description in detail with reference to accompanying drawing, wherein:
Fig. 1 is the circuit theory schematic diagram of the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank of the present invention;
Fig. 2 is the thermostatic control schematic flow sheet of the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank of the present invention;
Fig. 3 is the electrically heated rod group front view of the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank of the present invention;
Fig. 4 be in Fig. 3 electrically heated rod group A to sectional view;
Fig. 5 be in Fig. 3 electrically heated rod group B to sectional view.
In figure: A1 is touch control display, B1 is temperature pick up, and P1 is controller, and S1, S2 are temperature switch, KA1, KA2 are relay, G is threephase alternator, and QF1 is line breaker, and S3 is rotary switch, L3 is power supply indicator, KD1, KD2 are three-phase ac contactor, and L1, L2 are burner on light, and R1, R2 are heating rod group; 1, junction box; 2, adpting flange; 3, internal thread short steel pipes; 4, temperature switch; 5, barred body is heated; 6, clip;
Detailed description of the invention
The following description is only exemplary and be not to limit the disclosure, application or purposes in essence.Should be understood that, in whole accompanying drawing, corresponding Reference numeral represents identical or corresponding parts and feature.
Below in conjunction with accompanying drawing, the present invention is described in further details.
As shown in Figure 1, the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank of the present invention is by touch control display A1, temperature pick up B1, controller P1, temperature switch S1, S2, relay K A1, KA2, threephase alternator G, circuit breaker Q F1, rotary switch S3, indicator lamp L1, L2, L3, three-phase ac contactor KD1, KD2, heating rod group R1, R2 are formed, and are divided into low-voltage control circuit and high-pressure work circuit.
As can be known from Fig. 1, send two-way low-voltage control signal from controller P1, separate two groups of high-pressure work circuit from circuit breaker Q F1: temperature switch S1, relay K A1, indicator lamp L1, three-phase ac contactor KD1, heating rod group R1 form one group simultaneously; Temperature switch S2, relay K A2, indicator lamp L2, three-phase ac contactor KD2, heating rod group R2 form another group.Two groups is parallel relationship, shares touch control display A1, temperature pick up B1, controller P1, threephase alternator G, circuit breaker Q F1, rotary switch S3, indicator lamp L3.Two groups work alone, are controlled separately respectively by two path control signal, and wherein heating rod group R1, R2 are respectively by Flange joint, and fix with bolt, are arranged in asphalt tank.These two groups of equipments are independent of each other, and one group is damaged another group and can work on, improves reliability and heating uniformity, and the heating power of heating rod group R1, R2 has better met the demand for heat of 2000 liters of large volume tank bodies.
Wherein said touch control display A1, temperature pick up B1, controller P1, temperature switch S1, S2, relay K A1, KA2 are low-voltage control assembly: touch control display A1 is connected with controller P1, and communication with it, be used for showing Current Temperatures and input temp setting value in real time; Controller P1 is connected with temperature switch S1, S2 with temperature pick up B1, and controller P1 detects material temperature in asphalt tank by temperature pick up B1, and program of being responsible for performs and exports heating signal; Two-way thermal control signals is respectively through temperature switch S1, S2, be connected with relay K A1, KA2 respectively, temperature switch S1, S2 and heating rod group R1, R2 integrate again, temperature near Real-Time Monitoring heating rod group switching centre point, when local temperature is too high, thermal control signals can be disconnected; Relay K A1, KA2 play the transitional function of low voltage control high pressure, the control signal of coming from temperature switch is connected with the coil of relay, and the constant open contact access high-pressure work circuit of relay, one end of contact is connected with rotary switch S3, the other end is connected with the coil of three-phase ac contactor KD1, KD2, so just can realize two-way low-voltage control signal respectively through temperature switch S1, S2, and respectively by relay K A1, KA2, two groups of high-pressure work circuit be connected.
Threephase alternator G, circuit breaker Q F1, rotary switch S3, indicator lamp L1, L2, L3, three-phase ac contactor KD1, KD2, heating rod group R1, R2 are high voltage operation parts: threephase alternator G is connected with circuit breaker Q F1, it is by the diesel engine powers of machine itself, export three-phase alternating current, three live wires of three-phase alternating current access in three wiring holes of circuit breaker Q F1 one end respectively, phase voltage 230V, line voltage 400V; Circuit breaker Q F1 has two ends, and wherein one end is connected with generator, and the other end is divided into two-way, be connected with the contact of three-phase ac contactor KD1, KD2 respectively, two-way is parallel relationship, and circuit breaker Q F1 shields, and mainly prevents operating circuit from causing accident because of short circuit; Three-phase ac contactor KD1, KD2 are made up of coil and constant open contact two parts, coil-end by relay K A1, being connected with rotary switch S3 of KA2, constant open contact one end connecting breaker QF1, other end connection heating rod group R1, R2 and indicator lamp L1, L2; Rotary switch S3 and battery main switch, have three constant open contacts, and except two constant open contacts are connected with relay K A1, KA2, another one contact is connected with indicator lamp L3; Indicator lamp is divided into power supply indicator L3 and burner on light L1, L2 two kinds, opening power master switch S3, L3 lighted by red power supply indicator, if now three-phase ac contactor KD1, KD2 constant open contact closes, heating rod group R1, R2 start heating, green indicating lamp L1, L2 are corresponding to be lighted; Three-phase ac contactor is for controlling the break-make of main operating circuit.
Heating rod group R1, R2 are the crucial execution units of this device, and heating function realizes by it, and its concrete ingredient is introduced as follows:
As shown in Figure 3 and Figure 4, described electrically heated rod group comprises junction box 1, adpting flange 2, internal thread short steel pipes 3, temperature switch 4, heating barred body 5, clip 6, together with wherein junction box 1 is bolted with adpting flange 2, internal thread short steel pipes 3 is welded on the center of adpting flange 2, and temperature switch 4 is arranged on the center of heating rod group by internal thread short steel pipes 3; Heating barred body 5 is that circular U-shaped heating rod is formed by nine cross sections, and wiring is drawn at the two ends of U-shaped heating rod; The power of every single u-shaped heating rod is equal.
As shown in Figure 5, the U-shaped heating rod two ends of heating barred body 5 are each passed through adpting flange 2 and weld together with it, and the curved end of the U-shaped heating rod of heating barred body 5 is fixed by clip 6; Have 18 Binding post/studs to be connected with 18 wiring of heating barred body 5 in the one side of junction box 1, every three heating rods form one group, adopt parallel way, nut crimping wiring; Nine heating rods form three groups altogether, and the wiring of three groups is electrically connected with AC three-phase in junction box 1, and often group uses a phase electricity wherein, and consistent owing to often organizing load, then whole heating barred body 5 load electricity consumption forms three-phase equilibrium.The design of this electricity consumption three-phase equilibrium, protects generating equipment, reaches the object of Electrical Safety; meanwhile, under the prerequisite ensureing Large Copacity tank body heating power requirements, the power of single heating rod is reduced; avoid short-time thermal amount large, achieve the flexible temperature rise of mulseal.
So-called flexible temperature rise spy proposes for the sensitiveness of emulsified bituminous materials to temperature, refers to the temperature ramp de of the non-violent formula of liquid in tank body, does not cause any damage and fracture to fluent material.The flexible temperature rise of electrically heated rod group of the present invention is mainly reflected in following two aspects: on the one hand, and time when single heating rod reaches heat balance is shorter, and barred body surface temperature is stabilized in about 90 DEG C very soon; On the other hand, the contact area of whole electrically heated rod group and liquid is large, and margin of power foot, by the interchange of heat between barred body and liquid, realizes the rising of fluid temperature.
Electrically heated rod group arranges with certain regular uniform on circular flange; Nine heating rods are divided into four kinds of different models according to the difference of length and bend radius, but watt level is the same, and are all single-phase electricity mode of operation, and every like this three root knots are combined, and form three-phase equilibrium, play the effect of safety and protection device during work; Two outlet of nine circular heating rods is also all welded on flange, and the power of single heating rod is with length ratio through detailed calculating and experiment, and can ensure that single heating rod realizes flexible temperature rise, barred body surface temperature can not more than 100 DEG C; Temperature near temperature switch S1, S2 Real-Time Monitoring heating rod group switching centre point, controls heating rod start and stop separately, avoids hot-spot.
Again shown in Fig. 2, provide the control flow schematic diagram of this thermostatically-controlled equipment, first control system needs to check whether diesel engine speed reaches required rotating speed, if do not meet speed conditions, heating signal will be closed automatically, if reason leans on the alternating current generator of diesel engine powers not reach rated speed, then whole high-pressure work circuit does not just reach rated voltage, its consequence can damage the parts such as A.C. contactor, also can affect the heating of heating rod group and the effect be incubated;
Then control system also needs to check in asphalt tank, whether level conditions meets, if liquid does not reach the height at heating rod group and temperature sensor component place, temperature pick up accurately cannot record fluid temperature, this can cause control system to continue to send the danger of heating signal, cause heating rod group to continue energising dry combustion method, time serious, can parts be damaged;
When rotating speed and level conditions all meet, if now heater switch is opened, controller will contrast the setting value transmitted from touch control display with from the real-time detected value that temperature pick up records, return difference value is subtracted when detected value is less than or equal to setting value, controller then can export heating signal, subtract return difference value when detected value is greater than setting value but is less than setting value, it is constant that controller will maintain standing state, i.e. now just still open of being out of heating signal, heating signal is that just continuing of closing closes, when detected value is more than or equal to setting value, controller will cut out heating signal, whole process iterative cycles in director demon performs above.Introduce temperature return difference in above process to control, object prevents system oscillation.
Claims (5)
1. the thermostatically-controlled equipment of a pitch sprinkling paver mulseal tank, be made up of touch control display, temperature pick up, controller, temperature switch, relay, threephase alternator, line breaker, rotary switch, indicator lamp, three-phase ac contactor, heating rod group, send two-way low-voltage control signal from controller, separate two groups of high-pressure work circuit from line breaker; Wherein temperature switch, relay, burner on light, three-phase ac contactor, heating rod group respectively have two, form one group respectively; Two groups are parallel relationship and share touch control display, temperature pick up, controller, threephase alternator, line breaker, rotary switch, power supply indicator, it is characterized in that, wherein said touch control display, temperature pick up, controller, temperature switch, relay are low-voltage control assembly: touch control display is connected with controller, and communication with it, be used for showing Current Temperatures and input temp setting value in real time; Controller is connected with temperature switch with temperature pick up, and controller detects material temperature in asphalt tank by temperature pick up, and program of being responsible for performs and exports heating signal; Two-way thermal control signals respectively through temperature switch, then is connected with relay respectively, and temperature switch and heating rod group integrate, and temperature near Real-Time Monitoring heating rod group switching centre point, when local temperature is too high, can disconnect thermal control signals; Relay plays the transitional function of low voltage control high pressure, the control signal of coming from temperature switch is connected with the coil of relay, and the constant open contact access high-pressure work circuit of relay, one end of contact is connected with rotary switch, the other end is connected with the coil of three-phase ac contactor, so just can realize two-way low-voltage control signal respectively through temperature switch, and respectively by relay, two groups of high-pressure work circuit be connected.
2. the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank as claimed in claim 1, it is characterized in that, threephase alternator, line breaker, rotary switch, indicator lamp, three-phase ac contactor, heating rod group are high voltage operation parts: threephase alternator is connected with line breaker, it is by the diesel engine powers of machine itself, export three-phase alternating current, three live wires of three-phase alternating current access in three wiring holes of line breaker one end respectively, phase voltage 230V, line voltage 400V; Line breaker has two ends, and wherein one end is connected with generator, and the other end is divided into two-way, is connected respectively with the contact of three-phase ac contactor, and two-way is parallel relationship, and line breaker shields, and mainly prevents operating circuit from causing accident because of short circuit; Three-phase ac contactor is made up of coil and constant open contact two parts, and coil-end is connected with rotary switch by relay, constant open contact one end connecting breaker, and the other end connects heating rod group and burner on light; Rotary switch and battery main switch, have three constant open contacts, and except two constant open contacts are connected with relay, another one contact is connected with power supply indicator; Indicator lamp is divided into power supply indicator and burner on light two kinds, opening power master switch, and red power supply indicator is lighted, if now three-phase ac contactor constant open contact closes, heating rod group starts heating, and green burner on light is corresponding to be lighted; Three-phase ac contactor is for controlling the break-make of main operating circuit.
3. the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank as claimed in claim 1 or 2, it is characterized in that, described electrically heated rod group comprises junction box, adpting flange, internal thread short steel pipes, temperature switch, heating barred body, clip, together with wherein junction box is bolted with adpting flange, internal thread short steel pipes is welded on the center of adpting flange, and temperature switch is arranged on the center of heating rod group by internal thread short steel pipes; Heating barred body is that circular U-shaped heating rod is formed by nine cross sections, and wiring is drawn at the two ends of U-shaped heating rod; The power of every single u-shaped heating rod is equal.
4. the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank as claimed in claim 1 or 2, it is characterized in that, this thermostatically-controlled equipment can regulate temperature in mulseal tank in real time, has heating and heat insulating functions.
5. the control method of the pitch sprinkling paver mulseal tank thermostatically-controlled equipment described in an any one of application rights requirement 1-4, mainly comprise the following steps: first need to check whether diesel engine speed reaches required rotating speed, if do not meet speed conditions, heating signal will be closed automatically, then check in asphalt tank, whether level conditions meets as met speed conditions, if liquid does not reach the height at heating rod group and temperature sensor component place, temperature pick up accurately cannot record fluid temperature, when rotating speed and level conditions all meet, if now heater switch is opened, controller will contrast the setting value transmitted from touch control display with from the real-time detected value that temperature pick up records, return difference value is subtracted when detected value is less than or equal to setting value, controller then can export heating signal, subtract return difference value when detected value is greater than setting value but is less than setting value, it is constant that controller will maintain standing state, i.e. now just still open of being out of heating signal, heating signal is that just continuing of closing closes, when detected value is more than or equal to setting value, controller will cut out heating signal, above control procedure is iterative cycles in director demon performs.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310379916.8A CN104420411B (en) | 2013-08-27 | 2013-08-27 | A kind of thermostatically-controlled equipment and control method of pitch sprinkling paver emulsified asphalt tank |
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| CN201310379916.8A CN104420411B (en) | 2013-08-27 | 2013-08-27 | A kind of thermostatically-controlled equipment and control method of pitch sprinkling paver emulsified asphalt tank |
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| CN104420411A true CN104420411A (en) | 2015-03-18 |
| CN104420411B CN104420411B (en) | 2016-05-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108252184A (en) * | 2015-09-06 | 2018-07-06 | 张琴 | Automate paving machine and its method of work |
| CN112919797A (en) * | 2021-02-07 | 2021-06-08 | 通鼎互联信息股份有限公司 | VAD (vapor deposition) argon heating device for optical fiber preform core rod |
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| CN201406620Y (en) * | 2009-05-08 | 2010-02-17 | 山东奥邦机械设备制造有限公司 | Device for heating asphalt in tank body of intelligent asphalt distribution truck |
| CN103103910A (en) * | 2012-12-12 | 2013-05-15 | 常州市立威刀具有限公司 | Automatic heating device of paver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU5166585A (en) * | 1984-12-27 | 1986-07-03 | Dynapac Aktiebolag | Device for spreading bituminous binder |
| CN201214751Y (en) * | 2008-07-02 | 2009-04-01 | 奔腾（国际）汽车科技有限公司 | Heating temperature control device for drum-type bituminous mixture bin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252184A (en) * | 2015-09-06 | 2018-07-06 | 张琴 | Automate paving machine and its method of work |
| CN112919797A (en) * | 2021-02-07 | 2021-06-08 | 通鼎互联信息股份有限公司 | VAD (vapor deposition) argon heating device for optical fiber preform core rod |
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| CN104420411B (en) | 2016-05-18 |
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