CN206418375U - Pitch heating system and asphalt mixing plant - Google Patents
Pitch heating system and asphalt mixing plant Download PDFInfo
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- CN206418375U CN206418375U CN201621304815.XU CN201621304815U CN206418375U CN 206418375 U CN206418375 U CN 206418375U CN 201621304815 U CN201621304815 U CN 201621304815U CN 206418375 U CN206418375 U CN 206418375U
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Abstract
The utility model discloses a kind of pitch heating system and asphalt mixing plant, the pitch heating system includes heating and thermal insulation tank and the heater being arranged on the output pipe of heating and thermal insulation tank, having broken traditional asphalt heating system only includes the conventional arrangement of a reheating process, and including heating and thermal insulation tank and the double heating process of heater, the pitch stored in it is heated to by heating and thermal insulation tank by the first preset temperature range with certain fluidity first, the pitch for flowing into heater is heated to the second preset temperature range needed for production again, compared with traditional approach, firing rate can be greatly speeded up, improve energy utilization rate, reduce production cost.
Description
Technical field
The utility model is related to asphalt mixing field, more particularly to a kind of pitch heating system and asphalt mixing plant.
Background technology
The production of hot-mixed asphaltic concrete is to match somebody with somebody pitch according to certain level with hot aggregate, powder and other outer additives
Sufficiently stir and then formed the process of homogeneous mixture.In the process, to ensure that pitch has good mobility
And ensure that the mixture produced reaches preset temperature range, it usually needs in the storage and pumping procedure of pitch, by pitch
Heating and thermal insulation is to 120 DEG C~150 DEG C.
Existing pitch heating and thermal insulation process, only a reheating process, its major part is used as by high temperature heat conductive oil
Heat carrier carries out partition-wall heat transfer, and the free convection, overall static mode of heating have as a drawback that：
1) bituminous pitch storing amount is generally large, and its thermal conductivity factor is very low, so its diabatic process is longer, need to generally open
Pitch in tank was heated in 5-8 hours or so before dynamic production, the fuel availability for directly resulting in whole process is low, the duration prolongs
Long etc., the economic loss thus brought is very huge；
2) the small lot production of pitch is frequently necessary in actual production, its consumption is much smaller than storage capacity, but still right
Whole tank carries out partition-wall heat transfer, causes energy utilization rate low, causes energy waste.
Therefore, how to improve the heating and thermal insulation process of pitch, accelerate firing rate, improve energy utilization rate, reduction production
Cost, is important technological problems urgently to be resolved hurrily at present.
Utility model content
In view of this, the utility model proposes a kind of pitch heating system, including heating and thermal insulation tank and be arranged on it is described plus
Heater on the output pipe of hot heat insulation tank；
The heating and thermal insulation tank, for the pitch to be heated into the first preset temperature range；
The heater, the pitch for the output pipe through the heating and thermal insulation tank to be flowed into the heater adds
Heat is to the second preset temperature range.
Further, the pitch heating system, in addition to the first temperature-detecting device and control device；
On first temperature-detecting device, the output pipe for being arranged on the heater, for detecting by described
Asphalt temperature after heating devices heat；
The control device, is connected with first temperature-detecting device and the heater, for being added according to described
Asphalt temperature after heat, adjusts the power of the heater.
Further, the heater include be successively set on the output pipe of the heating and thermal insulation tank first plus
Hot device and secondary heater, the primary heater are used to the pitch for flowing through the primary heater being heated to the 3rd default temperature
Spend scope；The secondary heater is used to the pitch for flowing through the secondary heater being heated to the second preset temperature model
Enclose；
The temperature averages of 3rd preset temperature range are more than the temperature averages of first preset temperature range,
And less than the temperature averages of second preset temperature range.
Further, the pitch heating system, in addition to the second temperature detection means being connected with the control device；
The second temperature detection means is arranged on the output pipe of the primary heater and the intake line of the secondary heater
Between；The control device is additionally operable to the drip according to first temperature-detecting device and second temperature detection means detection
The power of secondary heater described in blue or green temperature adjustment.
Further, the primary heater is oil heat exchanger；The secondary heater is electric heater or gas heating
Device.
Further, the quantity of the heating and thermal insulation tank is at least two；The volume of heating and thermal insulation tank described at least two
It is different.
Further, the pitch heating system, in addition to unload groove and the first valve；
The first end of first valve is connected with the output pipe of the groove of unloading；Second end of first valve with it is described
The intake line connection of heater；3rd end of first valve is connected with the intake line of the heating and thermal insulation tank.
Further, the pitch heating system, in addition to filter and hydraulic pump, the filter is arranged on described connect
Unload on the output pipe of groove；The hydraulic pump be arranged on the groove of unloading, the heating and thermal insulation tank, the heater it is any
On one or more output pipes.
Further, the pitch heating system, in addition to the second valve；The first end of second valve, with the heating
The output pipe connection of device；Second end of second valve is connected with the output pipe of the pitch heating system；Described
3rd end of two valves is connected with the intake line of the heating and thermal insulation tank.
On the other hand, the present invention also provides a kind of asphalt mixing plant, including be sequentially connected pitch heating system, pitch
Metering system and asphalt mixing system；The pitch heating system is above-mentioned arbitrary pitch heating system.
Pitch heating system and asphalt mixing plant that the utility model is provided, have broken traditional asphalt heating system and have only wrapped
The conventional arrangement of a reheating process is included, and including heating and thermal insulation tank and the double heating process of heater, passes through heating first
The pitch stored in it is heated to the first preset temperature range with certain fluidity by heat insulation tank, then will flow into heater
Pitch be heated to production needed for the second preset temperature range.Compared with traditional approach, firing rate can be greatly speeded up, the energy is improved
Utilization rate, reduction production cost.
Brief description of the drawings
Constitute a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the structural representation of one embodiment of pitch heating system of the present utility model；
Fig. 2 is the control block diagram of pitch heating system of the present utility model；
Fig. 3 is the structural representation of one embodiment of the heater of pitch heating system of the present utility model；
Fig. 4 is the structural representation of one embodiment of the heating and thermal insulation tank of pitch heating system of the present utility model.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.To describe pitch heating system of the present utility model and asphalt mixing plant in detail, below with reference to the accompanying drawings simultaneously
Describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, it is shown that a specific embodiment of pitch heating system of the present utility model, including heating and thermal insulation
Tank 100 and the heater 200 being arranged on the output pipe of heating and thermal insulation tank 100.Wherein, heating and thermal insulation tank 100, for inciting somebody to action
Pitch is heated to the first preset temperature range；Heater 200, adds for the output pipe of heated heat insulation tank 100 to be flowed into
The pitch of thermal 200 is heated to the second preset temperature range.
In this embodiment, a specific embodiment of pitch heating system of the present utility model is given, it is broken
Traditional asphalt heating system only includes the conventional arrangement of a reheating process, and including heating and thermal insulation tank 100 and heater 200
The pitch stored in it, is heated to first with certain fluidity by double heating process by heating and thermal insulation tank 100 first
Preset temperature range (in the range of such as 70-90 °), then the pitch for flowing into heater 200 is heated to second pre- needed for production
If temperature range (in the range of such as 120-150 °).The pitch heating system can greatly speed up heating compared with traditional asphalt heating system
Speed, raising energy utilization rate, reduction production cost.Specifically, with the memory storage of heating and thermal insulation tank 100 50T pitches, it is actual raw
Production is only needed exemplified by heating 10T pitches, using pitch heating system of the present utility model only need to first pass through heating and thermal insulation tank 100 by its
The 50T pitches of memory storage are heated to 70-90 °, then the pitch for flowing into heater 200 is heated into 120-150 °, add when flowing through
When the pitch of thermal 200 reaches 10T, that is, production requirement is met, heating process can be stopped.Therefore, whole process, only first will
50T pitch is heated to 70-90 °, then 10T pitches therein are heated into 120-150 °, and system is heated without such as traditional asphalt
Unified sample, 120-150 ° is all heated to by the 50T pitches of the memory storage of heating and thermal insulation tank 100, its reaction speed faster, energy profit
With rate is higher, production cost is lower.
It is preferred that, as shown in Figure 1, 2, the pitch heating system, in addition to the first temperature-detecting device 300 and control device
400.Wherein, on the first temperature-detecting device 300, the output pipe for being arranged on heater 200, for detecting by heating dress
Put the asphalt temperature after 200 heating；Control device 400, is connected with the first temperature-detecting device 300 and heater 200, is used for
According to the asphalt temperature after heating, the power of heater 200 is adjusted.
In this embodiment, pitch heating system is additionally arranged the first temperature-detecting device 300 and control device 400, can lead to
The asphalt temperature crossed on the output pipe of detection heater 200, forms negative-feedback regu- lation, controls the power of heater 200,
Ensure that the pitch of whole pitch heating system output reaches the second preset temperature range needed for production.Specifically, the first temperature
Detection means 300, can be thermometer, temperature measurer etc..More specifically, control device 400, it is optional but be not limited only to include storage
Module and comparison module.Wherein, memory module, for storing the second preset temperature range；Comparison module, for by the first temperature
The asphalt temperature that detection means 300 is detected is compared with the second preset temperature range, if the asphalt temperature is less than the second default temperature
The minimum value of scope is spent, then increases the power of heater 200, if the asphalt temperature is more than the maximum of the second preset temperature range
Value, then reduce the power of heater 200.
It is more highly preferred to, as shown in figure 3, the heater 200 includes the efferent duct for being successively set on heating and thermal insulation tank 100
Primary heater 210 and secondary heater 220 on road.Wherein, primary heater 210 is used to that primary heater 210 will to be flowed through
Pitch be heated to the 3rd preset temperature range；Secondary heater 220 is used to the pitch for flowing through secondary heater 220 being heated to
Second preset temperature range；The temperature that the temperature averages of above-mentioned 3rd preset temperature range are more than the first preset temperature range is put down
Average, and less than the temperature averages of the second preset temperature range.
In this embodiment, the concrete structure composition of heater 200 is given, it includes primary heater 210
With secondary heater 220, and then the second reheating process is divided into the progress of two steps, secondary heater 220 of being more convenient for is adjusted
Save the asphalt temperature that whole pitch heating system is exported.It is more highly preferred to, primary heater 210 is oil heat exchanger；Second adds
Hot device 220 is electric heater or combustion heater, and it can realize that the quick of pitch adds by electric heater or combustion heater etc.
Heat heating, further improves firing rate.
It is more highly preferred to, as shown in Figure 2,3, the pitch heating system also includes the second temperature being connected with control device 400
Spend detection means 500.Specifically, the second temperature detection means 500 is arranged on the output pipe and second of primary heater 210
Between the intake line of heater 220；Control device 400 is additionally operable to according to the first temperature-detecting device 300 and second temperature inspection
Survey the power for the asphalt temperature regulation secondary heater 220 that device 500 is detected.
In this embodiment, it is additionally arranged the input of the output pipe Yu secondary heater 220 that are arranged on primary heater 210
Second temperature detection means 500 between pipeline, can further form feedback regulation according to its testing result, and control second is heated
The control principle of the power of device 220, the control principle of its feedback regulation and the first temperature-detecting device 300 and control device 400
It is similar, it will not be repeated here.
It is more highly preferred to, as shown in figure 4, the quantity of heating and thermal insulation tank 100 is at least two, at least two heating and thermal insulation
The volume of tank 100 is different.Specifically, Fig. 4 illustrates heating and thermal insulation tank 100 including 3, wherein the first heating and thermal insulation tank 110
Volume is 20T, and the volume of the second heating and thermal insulation tank 120 is 30T, and the volume of the 3rd heating and thermal insulation tank 130 is 30T, operating personnel
Pitch amount that can be according to needed for production, control starts which or which heating and thermal insulation tank, and few heating as far as possible is not required to
The pitch wanted, to further speed up firing rate, improve energy utilization rate, reduction production cost.Example, needed for production
When pitch amount is 10T, the first heating and thermal insulation tank 110 is only controlled to start heating；When the pitch amount needed for production is 40T, only control
Make the 3rd heating and thermal insulation tank 130 and start heating, when the pitch heating amount needed for production is 60T, control the first heating and thermal insulation tank
110 and the 3rd heating and thermal insulation tank 130 start heating.Specifically, the particular number of above-mentioned heating and thermal insulation tank 100, each heating are protected
The volume of warm tank 100, can arbitrarily set according to actual production demand.More specifically, the startup of above-mentioned heating and thermal insulation tank, can lead to
Cross and control the effectively control such as its respective heater, its intake line, valve of output pipe.
It is more highly preferred to, as shown in figure 1, pitch heating system of the present utility model, in addition to the valve of groove 600 and first of unloading
710.Wherein, the first end of the first valve 710 is connected with the output pipe for groove 600 of unloading；Second end of the first valve 710 is filled with heating
The intake line for putting 200 is connected；3rd end of the first valve 710 is connected with the intake line of heating and thermal insulation tank 100.
In this embodiment, pitch heating system is additionally arranged the valve 710 of groove 600 and first of unloading, the pitch newly bought, can be through
Unload the valve 710 of groove 600 and first, it is standby to be delivered to the memory storage of asphalt tank with heating device 100, or be delivered to heater 200 and be heated to
Temperature needed for production is directly used in production, greatly facilitates effective utilization of new purchase pitch.It is additionally, since general new purchase drip
Green grass or young crops has certain temperature, and it is directly utilized, and can further be avoided the loss of the temperature from wasting, further be improved using energy source
Rate, reduction production cost.
It is more highly preferred to, pitch heating system of the present utility model, in addition to filter 800 and hydraulic pump 900.Wherein,
Filter 800 is arranged on the output pipe for groove 600 of unloading；Hydraulic pump 900 be arranged on groove 600 of unloading, heating and thermal insulation tank 100,
On any one or more output pipes of heater 200.
In this embodiment, pitch heating system is also additionally arranged filter 800 and hydraulic pump 900.The filter can be filtered
The impurity of new purchase pitch, improves asphalt quality；The hydraulic pump 900 can improve pumping pressure, accelerate pitch flow velocity, further add
Fast speed of production, raising production efficiency.
It is more highly preferred to, pitch heating system of the present utility model, in addition to the second valve 720.The first of second valve 720
End, is connected with the output pipe of heater 200；Second end of the second valve 720 is connected with the output pipe of pitch heating system；
3rd end of the second valve 720 is connected with the intake line of heating and thermal insulation tank 100.
In this embodiment, pitch heating system is additionally arranged the second valve 720, and operating personnel can be by controlling the second valve 720
Guiding path, realize the loop control of whole pitch heating system.Specifically, operating personnel can fill according to the first temperature detection
Put 300 temperature, when its temperature meets the second preset temperature range of production requirement, control the second valve 720 first end with
The conducting of second end, the 3rd end are closed, to be provided out meeting desired pitch；The second pre- of production requirement is unsatisfactory in its temperature
If during temperature range, the first end and the conducting of the 3rd end, the second end for controlling the second valve 729 are closed, by pitch circulation conveying extremely
Any heating and thermal insulation tank 100 is further heated, until meeting production requirement.More specifically, above-mentioned second valve 720 can be with control
Device 400 is connected, by control device 400 realize automatically control, with further improve the pitch heating system automation and
Intellectuality, reduces hand labor cost.
In addition, the utility model is also by above-mentioned arbitrary pitch heating system and pitch metering system, asphalt mixing system
Combination, forms the asphalt mixing plant conceived based on the utility model.The asphalt mixing plant and above-mentioned pitch heating system pair
Should, the combination of its technical characteristic and technique effect are repeated no more.Preferred embodiment of the present utility model is the foregoing is only,
Not to limit the utility model.It is all within spirit of the present utility model and principle, any modification for being made, equally replace
Change, improve, should be included within protection domain of the present utility model.
Claims (10)
1. a kind of pitch heating system, it is characterised in that including heating and thermal insulation tank (100) and be arranged on the heating and thermal insulation tank
(100) heater (200) on output pipe；
The heating and thermal insulation tank (100), for the pitch to be heated into the first preset temperature range；
The heater (200), for the output pipe through the heating and thermal insulation tank (100) to be flowed into the heater
(200) pitch is heated to the second preset temperature range.
2. pitch heating system according to claim 1, it is characterised in that also including the first temperature-detecting device (300)
With control device (400)；
On first temperature-detecting device (300), the output pipe for being arranged on the heater (200), for detecting warp
The asphalt temperature crossed after the heater (200) heating；
The control device (400), is connected with first temperature-detecting device (300) and the heater (200), is used for
According to the asphalt temperature after the heating, the power of the heater (200) is adjusted.
3. pitch heating system according to claim 2, it is characterised in that the heater (200) includes setting successively
Put primary heater (210) and secondary heater (220) on the output pipe of the heating and thermal insulation tank (100), described
One heater (210) is used to the pitch for flowing through the primary heater (210) being heated to the 3rd preset temperature range；Described
Two heaters (220) are used to the pitch for flowing through the secondary heater (220) being heated to second preset temperature range；
The temperature averages of 3rd preset temperature range are more than the temperature averages of first preset temperature range, and small
In the temperature averages of second preset temperature range.
4. pitch heating system according to claim 3, it is characterised in that also including connecting with the control device (400)
The second temperature detection means (500) connect；The second temperature detection means (500) is arranged on the primary heater (210)
Output pipe and the secondary heater (220) intake line between；The control device (400) is additionally operable to according to described
The asphalt temperature regulation described second of first temperature-detecting device (300) and the second temperature detection means (500) detection adds
The power of hot device (220).
5. pitch heating system according to claim 4, it is characterised in that the primary heater (210) exchanges heat for oil
Device；The secondary heater (220) is electric heater or combustion heater.
6. the pitch heating system according to claim 1-5 any one, it is characterised in that the heating and thermal insulation tank
(100) quantity is at least two；The volume of heating and thermal insulation tank (100) described at least two is different.
7. the pitch heating system according to claim 1-5 any one, it is characterised in that also including groove of unloading (600)
With the first valve (710)；
The first end of first valve (710) is connected with the output pipe of the groove of unloading (600)；First valve (710)
Second end is connected with the intake line of the heater (200)；3rd end of first valve (710) and the heating and thermal insulation
The intake line connection of tank (100).
8. pitch heating system according to claim 7, it is characterised in that also including filter (800) and hydraulic pump
(900), the filter (800) is arranged on the output pipe of groove (600) of unloading；The hydraulic pump (900) is arranged on
The groove of unloading (600), the heating and thermal insulation tank (100), any one or more efferent ducts of the heater (200)
Lu Shang.
9. the pitch heating system according to claim 1-5 any one, it is characterised in that also including the second valve (720)；
The first end of second valve (720), is connected with the output pipe of the heater (200)；The of second valve (720)
Two ends are connected with the output pipe of the pitch heating system；3rd end of second valve (720) and the heating and thermal insulation tank
(100) intake line connection.
10. a kind of asphalt mixing plant, it is characterised in that including the pitch heating system being sequentially connected, pitch metering system and
Asphalt mixing system；The pitch heating system is the pitch heating system described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304815.XU CN206418375U (en) | 2016-12-01 | 2016-12-01 | Pitch heating system and asphalt mixing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304815.XU CN206418375U (en) | 2016-12-01 | 2016-12-01 | Pitch heating system and asphalt mixing plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206418375U true CN206418375U (en) | 2017-08-18 |
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ID=59577851
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621304815.XU Active CN206418375U (en) | 2016-12-01 | 2016-12-01 | Pitch heating system and asphalt mixing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206418375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480802A (en) * | 2016-12-01 | 2017-03-08 | 三汽车制造有限公司 | Pitch heating system and asphalt mixing plant |
-
2016
- 2016-12-01 CN CN201621304815.XU patent/CN206418375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480802A (en) * | 2016-12-01 | 2017-03-08 | 三汽车制造有限公司 | Pitch heating system and asphalt mixing plant |
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