CN110205153A - Pitch heating heat exchanger - Google Patents
Pitch heating heat exchanger Download PDFInfo
- Publication number
- CN110205153A CN110205153A CN201910597492.XA CN201910597492A CN110205153A CN 110205153 A CN110205153 A CN 110205153A CN 201910597492 A CN201910597492 A CN 201910597492A CN 110205153 A CN110205153 A CN 110205153A
- Authority
- CN
- China
- Prior art keywords
- pitch
- tank body
- heating
- bitumen pipeline
- heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 84
- 239000010426 asphalt Substances 0.000 claims abstract description 85
- 230000008676 import Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011295 pitch Substances 0.000 description 84
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/002—Working-up pitch, asphalt, bitumen by thermal means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of pitch heating heat exchangers, including the bitumen pipeline in heating device for conveying pitch, heater can heat the pitch in bitumen pipeline, and bitumen pipeline is the structure of coiled coil, the calandria of heater is evenly heated the pitch in bitumen pipeline, so that pitch is heated while bitumen pipeline conveys, the heating efficiency to pitch can be improved；Multiple heating devices being sequentially communicated can be heated by way of temperature increment when heating to pitch, prevent one-time heating, led to pitch uneven heating, influenced heating effect；Pitch is uniformly heated to a certain temperature convenient for control for controlling the on-off of siphunculus between two adjacent heating devices by the temperature control device between two adjacent heating devices, if asphalt temperature reaches requirement, the heater after temperature control device control is closed；Convenient for controlling the asphalt temperature in bitumen pipeline.
Description
Technical field
The present invention relates to equipment for processing modified asphaltum field more particularly to a kind of pitch heating heat exchangers.
Background technique
It needs to heat bitumen base before production modified pitch, then is delivered in the equipment of production modified pitch, it is existing
Some pitch heating methods are usually: pitch being passed through tank interior, is dripped using the heat-conducting oil pipes for being located at tank interior to tank body
Blueness is heated, and this heating method, heating speed is slow, and pitch is long in the tank intracorporal time, and heating efficiency is low, and close to leading
The heating speed of hot oil pipe is fast, slow apart from the farther away pitch heating speed of heat-conducting oil pipes, causes in tank body asphalt heating temperature not
Uniformly, and by heat-conducting oil pipes heating it is not easy to the temperature of control pitch.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind to be evenly heated to pitch, convenient for control pitch temperature
Degree, and the pitch heating heat exchanger that pitch heating efficiency is high.
In order to solve the above technical problems, the technical solution used in the present invention is: pitch heating heat exchanger, including it is multiple according to
The heating device of secondary connection and the temperature control device between two adjacent heating devices；
The heating device includes tank body, heater and the bitumen pipeline for conveying pitch；The tank interior is hollow
And in being covered with insulating layer on tank skin；The heater is fixed on top of the tank, during the calandria of the heater is located in tank body
Portion；The bitumen pipeline is located at tank interior, and bitumen pipeline is the structure of coiled coil；The import of the bitumen pipeline lower end
Run through tank body with upper end outlet to outside, and import is fixed with tank body with outlet；
Two adjacent heating devices, wherein in a heating device in the outlet of bitumen pipeline and another heating device
The import of bitumen pipeline is connected by siphunculus；The temperature control device include the temperature sensor that is installed on each siphunculus and
Controller；The signal input part of the controller connects temperature sensor, and signal output end connects heater, the controller energy
It is enough to detect whether the temperature control heater of pitch is opened according to temperature sensor.
A further technical solution lies in: the bitumen pipeline can also be vertical and be equidistantly arranged circumferentially along tank body
The upper and lower ends of multiple standpipes, the standpipe all extend to outside tank body, and riser end is linked to be a pipeline, institute by elbow
Elbow and standpipe is stated to fix by demountable connection structure.
A further technical solution lies in: the connection structure includes the first flange disk being fixed on elbow and is fixed on
Second flange disk on standpipe；The first flange disk and second flange disk are by being bolted.
A further technical solution lies in: the exit connection of the bitumen pipeline is connected with the tracheae of compressed gas, and borrows
The on-off of valve control tracheae and import is helped, the entrance of the bitumen pipeline is connected with the drainage conduit communicated with the outside world.
A further technical solution lies in: the heater is burner, and the calandria of the burner is discharge pipe, institute
It states discharge pipe and is located at tank interior.
A further technical solution lies in: the outlet air tube end extends to tank base, and offers on discharge pipe perpendicular
Histogram to long hole, and long hole have along discharge pipe circumferential direction spaced set it is multiple.
The beneficial effects of adopting the technical scheme are that
For conveying pitch, heater can add the pitch in bitumen pipeline bitumen pipeline in heating device
Heat, and bitumen pipeline is the structure of coiled coil, extends the pitch in bitumen pipeline in the intracorporal stroke of tank, so that heater
Calandria the pitch in bitumen pipeline can be evenly heated so that pitch bitumen pipeline convey while heated,
It can be improved the heating efficiency to pitch；
Multiple heating devices can heat the pitch in bitumen pipeline in conveying pitch process, and pitch is in pitch pipe
It is flowing in road, and the pitch in flow process in the middle part of bitumen pipeline is not broken off a friendship with the pitch close to bitumen pipeline tube wall
It replaces, multiple heating device guarantees are heated uniformly to the pitch of flowing to require temperature, reach lasting conveying pitch in the process to it
The effect heated；
Insulating layer is covered on the tank skin of tank body, insulating layer can be such that the temperature of tank interior exchanges with the tank body external world, make tank
Internal portion constant temperature, guarantee are evenly heated pitch；
For multiple heating devices being sequentially communicated when heating to pitch, the temperature of each heater is consistent, and needs with pitch
The maximum temperature for the temperature range to be heated to is consistent, and pitch is every primary by a heating device heating, passes through temperature increment
Mode heated, the speed of asphalt delivery and heating can be improved, and one-time heating can be prevented, causes pitch heated
Unevenness influences heating effect；
Temperature control device between two adjacent heating devices detects pitch in bitumen pipeline by temperature sensor
Whether temperature, control heater work, and pitch is uniformly heated to a certain temperature convenient for control, if a certain temperature sensor detects
To asphalt temperature reach requirement, controller controls the heater after the temperature sensor and does not work；Guarantee that pitch uniformly adds
Heat is to desired temperature, convenient for controlling the asphalt temperature in bitumen pipeline；
Bitumen pipeline can also be multiple standpipes that are vertical and being equidistantly arranged circumferentially along tank body, and riser end is by curved
Head is linked to be a pipeline with dismountable connection structure, on the basis of guaranteeing that the pitch in bitumen pipeline can be evenly heated,
It can be convenient for clearing up the pitch of the coking in bitumen pipeline.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural schematic diagram of heating device of the present invention；
Fig. 3 is the structural schematic diagram of tank interior of the present invention；
Fig. 4 is the structural schematic diagram of standpipe and elbow of the present invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiment is a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, those skilled in the art's every other embodiment obtained without making creative work,
It shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other way, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by the specific embodiments disclosed below.
Embodiment 1:
As shown in FIG. 1 to 3, pitch heating heat exchanger including multiple heating devices 1 being sequentially communicated and is set to adjacent
Two heating devices 1 between temperature control device；The heating device 1 includes tank body 11, heater 12 and drips for conveying
Green bitumen pipeline 13；11 inner hollow of tank body and in being covered with insulating layer 14 on tank skin；The heater 12 is fixed on tank
11 top of body, the calandria 15 of the heater 12 are located at middle part in tank body 11；The bitumen pipeline 13 is located inside tank body 11,
And bitumen pipeline 13 is the structure of coiled coil；The import 131 of 13 lower end of bitumen pipeline and upper end outlet 132 run through tank
Body 11 is to outside, and import 131 and outlet 132 are fixed with tank body 11；Two adjacent heating devices 1, wherein a heating dress
The import 131 for setting bitumen pipeline 13 in the outlet 132 and another heating device 1 of bitumen pipeline 13 in 1 connects by siphunculus 133
It connects；The temperature control device includes the temperature sensor 21 and controller 22 being installed on each siphunculus；The controller 22
Signal input part connect temperature sensor 21, signal output end connect heater 12, the controller 22 can be according to temperature
Sensor 21 detects whether the temperature control heater 12 of pitch is opened.
In use, pitch is pumped into the bitumen pipeline 13 in first heating device 1, and heater 12 is opened, heated
The calandria 15 of device 12 releases heat inside tank body 11, heats to the pitch in bitumen pipeline 13, to guarantee that pitch uniformly adds
Heat can make the temperature of the heater 12 in multiple heating devices 1 consistent, and the highest of the temperature range required heat to pitch
Temperature is consistent, and pitch is by temperature increment during multiple heating devices 1, until asphalt temperature in claimed range, works as pitch
After one of heating device 1, the temperature sensor 21 in temperature control device detects asphalt temperature in claimed range
When interior the larger value, temperature sensor 21 is input a signal into controller 22, in the post heating device 1 that controller 22 will control
Heater 12 do not work, even if pitch pass through after heating device 1 when generate heat loss, the temperature of pitch still requiring
In range, the controller 22 is the programmable logic controller (PLC) based on PLC, and the insulating layer 14 is poly- ammonia in the prior art
Ester foaming material.
For bitumen pipeline 13 in heating device 1 for conveying pitch, heater 12 can be to the pitch in bitumen pipeline 13
It is heated, and bitumen pipeline 13 is the structure of coiled coil, extends row of the pitch in tank body 11 in bitumen pipeline 13
Journey enables the calandria 15 of heater 12 to be evenly heated the pitch in bitumen pipeline 13, so that pitch is in bitumen pipeline
It is heated while 13 conveying, can be improved the heating efficiency to pitch；Multiple heating devices 1 can be in conveying pitch process
Pitch in bitumen pipeline 13 is heated, pitch is flowing, and the pitch pipe in flow process in bitumen pipeline 13
The pitch at 13 middle part of road constantly replaces with the pitch close to 13 tube wall of bitumen pipeline, and multiple heating devices 1 guarantee the drip of flowing
Blueness is heated to requiring temperature, achievees the effect that heat it during lasting conveying pitch；It is covered on 11 inner wall of tank body
Insulating layer 14, insulating layer 14 can be such that the temperature inside tank body 11 exchanges with 11 external world of tank body, make 11 inside constant temperature of tank body, guarantee
Pitch is evenly heated；Multiple heating devices 1 being sequentially communicated can be when heating pitch, the temperature of each heater 12
Degree is consistent, and consistent with the maximum temperature for the temperature range that pitch requires heat to, and pitch is every to heat up by a heating device 1
Once, it is heated by way of temperature increment, the speed of asphalt delivery and heating can be improved, and can be prevented disposable
Heating, leads to pitch uneven heating, influences heating effect；Temperature control device between two adjacent heating devices 1, passes through temperature
The temperature that sensor 21 detects pitch in bitumen pipeline 13 is spent, whether control heater 12 works, convenient for controlling that pitch is uniform
It is heated to a certain temperature, if the asphalt temperature that a certain temperature sensor 21 detects reaches requirement, controller 22 controls the temperature
Heater 12 after sensor 21 does not work；Guarantee that pitch is uniformly heated to the temperature of requirement, convenient for in bitumen pipeline 13
Asphalt temperature controlled, temperature control device is the prior art.
The tracheae 137 of compressed gas is connected at the outlet 132 of the bitumen pipeline 13 by the connection of the first triple valve 136,
The drainage conduit 139 communicated with the outside world is connected at the import 131 of the bitumen pipeline 13 by the second triple valve 138.
When not using pitch heating heat exchanger, it is passed through compressed gas in bitumen pipeline 13 by the first triple valve 136,
Bitumen pipeline 13 is communicated with drainage conduit 139 by the second triple valve 138 again, and the residue in bitumen pipeline 13 is arranged in time
Out, pitch agglomeration blocking bitumen pipeline 13 is prevented.
The heater 12 is burner, and the calandria 15 of the burner is discharge pipe, and the discharge pipe is located at tank body
Inside 11.
When burner operation, heat is brought into inside tank body 11 from discharge pipe, the pitch in bitumen pipeline 13 is added
Heat, the hot wind of generation can fully wrapped around bitumen pipeline 13, accelerate pitch heating speed, the fuel of burner is natural gas, combustion
Heating rate is fast and convenient for control when burner works, temperature control device can detecte pitch temperature control burner whether work
Make.
The outlet air tube end extends to 11 bottom of tank body, and the long hole 151 of vertical direction is offered on discharge pipe, and long
Hole 151 has multiple along discharge pipe circumferential direction spaced set, and the heat that the setting of long hole 151 can be such that burner generates is from discharge pipe
Uniformly it is dispersed into inside tank body 11.
Pitch requires heat to 190 DEG C -195 DEG C, is re-fed into equipment of producing modified asphalt, enters modified pitch in pitch
Temperature can be detected before production equipment whether between 190 DEG C -195 DEG C, if pitch just will not enter between 190 DEG C -195 DEG C
In equipment of producing modified asphalt, but behind the outlet of afterbody heating device 1 132, wait the temperature of pitches 190 DEG C-
When between 195 DEG C, then pitch is pumped into equipment of producing modified asphalt.
Embodiment 2:
As shown in figure 4, on the basis of embodiment 1, the bitumen pipeline 13 can also be for vertically and equidistantly along tank body
The 11 multiple standpipes 16 being arranged circumferentially, the upper and lower ends of the standpipe 16 all extend to outside tank body 11, and 16 end of standpipe is borrowed
Elbow 17 is helped to be linked to be a pipeline, the elbow 17 is fixed with standpipe 16 by demountable connection structure；The connection knot
Structure includes the first flange disk 161 being fixed on elbow 17 and the second flange disk 171 being fixed on standpipe 16；First method
Blue disk 161 and second flange disk 171 are by being bolted.
Bitumen pipeline 13 can also be multiple standpipes 16 that are vertical and being equidistantly arranged circumferentially along tank body 11, and 16 end of standpipe
Portion is linked to be a pipeline with dismountable connection structure by elbow 17, and the pitch in guarantee bitumen pipeline 13 can uniformly add
On the basis of heat, it can be convenient for clearing up the pitch of the coking in bitumen pipeline 13 by removing elbow 17.
The above is only presently preferred embodiments of the present invention, anyone content according to the present invention makes the present invention a little
Simple modification, deformation and equivalent replacement each fall within protection scope of the present invention.
Claims (6)
1. pitch heating heat exchanger, it is characterised in that: including multiple heating devices (1) being sequentially communicated and set on adjacent two
Temperature control device between heating device (1)；
The heating device (1) includes tank body (11), heater (12) and the bitumen pipeline (13) for conveying pitch；The tank
Body (11) inner hollow and in being covered with insulating layer (14) on tank skin；The heater (12) is fixed at the top of tank body (11), described
The calandria (15) of heater (12) is located at middle part in tank body (11)；The bitumen pipeline (13) is located at tank body (11) inside, and
Bitumen pipeline (13) is the structure of coiled coil；The import (131) of bitumen pipeline (13) lower end and upper end outlet (132) are equal
Through tank body (11) to outside, and import (131) and outlet (132) are fixed with tank body (11)；
Adjacent two heating devices (1), wherein in a heating device (1) outlet (132) of bitumen pipeline (13) and another
The import (131) of bitumen pipeline (13) is connected by siphunculus (133) in heating device (1)；The temperature control device includes peace
Loaded on the temperature sensor (21) and controller (22) on each siphunculus；The signal input part of the controller (22) connects temperature
Sensor (21), signal output end connect heater (12), and the controller (22) can be detected according to temperature sensor (21)
Whether the temperature control heater (12) to pitch is opened.
2. pitch heating heat exchanger according to claim 1, it is characterised in that: the bitumen pipeline (13) can also be perpendicular
The multiple standpipes (16) directly and being equidistantly arranged circumferentially along tank body (11), the upper and lower ends of the standpipe (16) all extend to tank body
(11) external, and standpipe (16) end is linked to be a pipeline by elbow (17), the elbow (17) and standpipe (16) are by can
It is fixed with the connection structure of disassembly.
3. pitch heating heat exchanger according to claim 2, it is characterised in that: the connection structure includes being fixed on elbow
(17) first flange disk (161) on and the second flange disk (171) being fixed on standpipe (16)；The first flange disk
(161) with second flange disk (171) by being bolted.
4. pitch heating heat exchanger according to claim 1 or 2, it is characterised in that: the outlet of the bitumen pipeline (13)
(132) tracheae (137) of compressed gas, the import of the bitumen pipeline (13) are connected at by the first triple valve (136) connection
(131) drainage conduit (139) communicated with the outside world is connected at by the second triple valve (138).
5. pitch heating heat exchanger according to claim 1, it is characterised in that: the heater (12) is burner, institute
The calandria (15) for stating burner is discharge pipe, and it is internal that the discharge pipe is located at tank body (11).
6. pitch heating heat exchanger according to claim 5, it is characterised in that: the outlet air tube end extends to tank body
(11) bottom, and the long hole (151) of vertical direction is offered on discharge pipe, and long hole (151) is equidistantly set along discharge pipe circumferential direction
It is equipped with multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910597492.XA CN110205153A (en) | 2019-07-04 | 2019-07-04 | Pitch heating heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910597492.XA CN110205153A (en) | 2019-07-04 | 2019-07-04 | Pitch heating heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110205153A true CN110205153A (en) | 2019-09-06 |
Family
ID=67796205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910597492.XA Pending CN110205153A (en) | 2019-07-04 | 2019-07-04 | Pitch heating heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110205153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073324A (en) * | 2019-12-31 | 2020-04-28 | 河北交科材料科技有限公司 | Rubber powder modified asphalt and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2744685Y (en) * | 2004-11-17 | 2005-12-07 | 中国铝业股份有限公司 | Asphalt melting device for industrial experiment |
| CN2888064Y (en) * | 2005-12-20 | 2007-04-11 | 侯洪胜 | Production-aiding electric-heating furnace for oil production well mouth |
| CN200978269Y (en) * | 2006-12-15 | 2007-11-21 | 广州路翔股份有限公司 | Processing complete equipment for modified bitumen |
| US7669792B1 (en) * | 2007-08-28 | 2010-03-02 | Rap Process Machinery, L.L.C. | Temperature control in an indirectly heated recycled asphalt product heater |
| CN102359049A (en) * | 2011-09-01 | 2012-02-22 | 中联重科股份有限公司 | Asphalt heating device and asphalt stirring equipment |
| CN102433147A (en) * | 2011-12-19 | 2012-05-02 | 无锡市锡洲热能设备有限公司 | Pitch quickly-heating tank capable of being split and combined |
| CN205839545U (en) * | 2016-06-22 | 2016-12-28 | 常山卫邦风机有限公司 | A kind of bituminous distributor with omnidistance heating and heat preserving function |
| CN107521625A (en) * | 2017-09-22 | 2017-12-29 | 广州文冲船厂有限责任公司 | A kind of pipeline for the heating of asphalt tanker pitch |
| CN207815634U (en) * | 2017-12-15 | 2018-09-04 | 珠海格力电器股份有限公司 | A kind of refrigerant heating device and air conditioner |
| CN208792095U (en) * | 2018-08-31 | 2019-04-26 | 长安大学 | A kind of electric heating asphalt tank |
| CN210340777U (en) * | 2019-07-04 | 2020-04-17 | 河北交科材料科技有限公司 | Asphalt heating heat exchanger |
-
2019
- 2019-07-04 CN CN201910597492.XA patent/CN110205153A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2744685Y (en) * | 2004-11-17 | 2005-12-07 | 中国铝业股份有限公司 | Asphalt melting device for industrial experiment |
| CN2888064Y (en) * | 2005-12-20 | 2007-04-11 | 侯洪胜 | Production-aiding electric-heating furnace for oil production well mouth |
| CN200978269Y (en) * | 2006-12-15 | 2007-11-21 | 广州路翔股份有限公司 | Processing complete equipment for modified bitumen |
| US7669792B1 (en) * | 2007-08-28 | 2010-03-02 | Rap Process Machinery, L.L.C. | Temperature control in an indirectly heated recycled asphalt product heater |
| CN102359049A (en) * | 2011-09-01 | 2012-02-22 | 中联重科股份有限公司 | Asphalt heating device and asphalt stirring equipment |
| CN102433147A (en) * | 2011-12-19 | 2012-05-02 | 无锡市锡洲热能设备有限公司 | Pitch quickly-heating tank capable of being split and combined |
| CN205839545U (en) * | 2016-06-22 | 2016-12-28 | 常山卫邦风机有限公司 | A kind of bituminous distributor with omnidistance heating and heat preserving function |
| CN107521625A (en) * | 2017-09-22 | 2017-12-29 | 广州文冲船厂有限责任公司 | A kind of pipeline for the heating of asphalt tanker pitch |
| CN207815634U (en) * | 2017-12-15 | 2018-09-04 | 珠海格力电器股份有限公司 | A kind of refrigerant heating device and air conditioner |
| CN208792095U (en) * | 2018-08-31 | 2019-04-26 | 长安大学 | A kind of electric heating asphalt tank |
| CN210340777U (en) * | 2019-07-04 | 2020-04-17 | 河北交科材料科技有限公司 | Asphalt heating heat exchanger |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073324A (en) * | 2019-12-31 | 2020-04-28 | 河北交科材料科技有限公司 | Rubber powder modified asphalt and production process thereof |
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