CN117563377A

CN117563377A - Superconducting asphalt fume purifying system and method

Info

Publication number: CN117563377A
Application number: CN202410063725.9A
Authority: CN
Inventors: 张华锋; 张新为; 王刚; 周荣生; 卢红苗; 王振东; 周俊焘; 张风雪; 刘天岭; 祖秉增
Original assignee: Beijing Zhongrong Technology Co ltd; CSCEC Road and Bridge Group Co Ltd
Current assignee: Beijing Zhongrong Technology Co ltd; CSCEC Road and Bridge Group Co Ltd
Priority date: 2024-01-17
Filing date: 2024-01-17
Publication date: 2024-02-20
Anticipated expiration: 2044-01-17
Also published as: CN117563377B

Abstract

The invention provides a superconducting asphalt fume purifying system and a method thereof, belonging to the technical field of asphalt waste gas treatment. The invention comprises an asphalt tank, an oil discharging pool, a superconducting asphalt fume purifying device, a decompression and diversion pipeline and a heating unit; the asphalt in the asphalt tank is heated through the heating unit, the heated asphalt generates oil fume, the generated oil fume enters the oil fume purifying bin, and the oil fume purifying bin is internally provided with a plurality of superconducting heat pipes, so that the oil fume can be subjected to heat exchange with the external environment, the oil fume subjected to heat exchange is condensed and liquefied, and meanwhile, part of the oil fume is shunted to the oil discharge tank through the decompression shunt pipeline, and is condensed and liquefied in the oil discharge tank through the oil fume purifying device. According to the invention, asphalt is heated only, condensation and liquefaction are carried out through the superconducting oil fume purifying device, and other equipment is not needed for purifying oil fume, so that the technical problems of high cost, serious energy waste and small application range caused by complex oil fume treatment process in the prior art are solved.

Description

Superconducting asphalt fume purifying system and method

Technical Field

The invention belongs to the technical field of asphalt waste gas treatment, and particularly relates to a superconducting asphalt fume purifying system and a method thereof.

Background

With the stricter and standard of environmental protection in China, the prevention and treatment of atmospheric pollution become important. Asphalt is used as a basic material in industries such as highway construction, civil foundation engineering, water prevention, petrochemical industry and the like, and due to the particularity of the asphalt, pollutants with limitation specified in the comprehensive emission standard of atmospheric pollutants GB16297-1996, asphalt fume and smoke benzo ratio, particulate matters, sulfur dioxide, nitrogen oxides and other harmful gases are inevitably generated in the heating process. Therefore, the problem of asphalt fume pollution to the environment has been a relatively prominent problem in these industries.

How to solve the problems of oil smoke overflow and environmental pollution in the heating process of asphalt. In recent decades, experts and scholars at home and abroad make beneficial discussion and attempts from theoretical research to practical application. Every time the oil fume purifying technical scheme and newly developed equipment are put into use, good social and economic benefits are obtained.

1. State of the art at home and abroad

At present, asphalt used in various industries in China is heated every time when being transferred, and the oil smoke is generated in the heating process of the asphalt.

(1) The asphalt tank is not subjected to sealing treatment

The oil inlet (manhole) and the breathing hole of the asphalt heating tank are not subjected to sealing treatment, and under the condition of air circulation, volatilized organic particles (more than or equal to 150 ℃) in hot asphalt react with oxygen in the air to generate oil fume; asphalt adhered on a heat conduction oil disc pipe (more than or equal to 200 ℃) in the asphalt tank reacts with oxygen in air to generate oil fume, and the lower the liquid level in the asphalt tank is, the longer the exposed heat conduction oil coil pipe is, and the larger the oil fume generation amount is.

(2) Stirring during the heating process of asphalt

Because of the limitation of the heat conduction oil asphalt heating technology, in order to solve the problem that asphalt is heated unevenly in the heating process, a stirrer is arranged to stir the asphalt. In the stirring process, organic particles volatilized by hot asphalt (more than or equal to 150 ℃) such as polycyclic hydrocarbon, benzo ratio and the like, and dozens of free particles react with oxygen in the air to generate a large amount of lampblack.

(3) The volume of air expands in the heating process of asphalt, and under the action of pressure, the air is wrapped with oil smoke and overflows from the asphalt tank.

Domestic fume purifying equipment, and fume treating technology and method reach advanced world level. The following methods are commonly used for domestic asphalt fume treatment:

Absorption process

The method for absorbing and removing the oil smoke by utilizing the physical property that the asphalt oil smoke particles can be dissolved in the absorption liquid or the oil smoke particles and the absorption liquid. Under the condition of reasonable design and operation, the method has high oil fume removal efficiency and convenient transportation management, but has extremely high requirements on equipment operation management. The absorption liquid gradually tends to saturate, so that the absorption efficiency is lowered. At present, asphalt fume is washed with water or base oil to absorb asphalt components therein. This in turn produces a portion of the waste stream, which must be reprocessed.

Adsorption method

When harmful gases such as oil smoke and the like pass through an adsorption tower filled with adsorbents (such as active carbon, hydrophobic molecular sieve and the like), the aim of purifying the oil smoke is achieved by utilizing the adsorption force of the adsorbents on oil smoke particles. The method has simple equipment and good removal effect, and is mostly used for the terminal treatment of the purification process. However, the practice proves that the operation effect is poor because the asphalt fume contains more water and adhesive asphalt fume. To ensure the standard emission, the adsorbent needs to be replaced frequently, and the operation cost is low.

Biological method

More one treatment process has been studied in recent years. The method has the outstanding advantages of low treatment cost and no secondary pollution basically. However, the air resistance is large, the degradation speed is low, and the equipment is huge. Is affected by the fluctuation of the concentration and the temperature of the oil smoke in the production, and the treatment effect is not ideal. Moreover, the method is only suitable for the treatment of hydrophilic and easily biodegradable substances, and has certain difficulty in the treatment of hydrophobic and difficultly biodegradable substances.

Photo-oxygen catalysis technology

The oil fume is irradiated by UV light beam to degrade and convert the oil fume into low molecular compounds. Specifically, the molecular chains of particle bacteria in the oil smoke are cracked by utilizing UV light beams, and the nucleic acid (DNA) of the bacteria is destroyed, and then the oxidation reaction is carried out by ozone, so that the purposes of purifying and removing malodorous smell are achieved. The equipment runs for a long time, the deodorizing effect is unsatisfactory, the ozone is excessive to generate new pollution, the waste gas turbidity is slightly high, the adhered asphalt can wrap the surface of an ultraviolet lamp, the luminous effect is affected, the decomposition is not thorough, and small molecular organic matters exist, so that the treatment effect is difficult to achieve.

Plasma process

And a high temperature plasma method and a low temperature plasma method. Plasma is the fourth state of matter present, except solid, liquid, and gas. Has macroscopic degree of electric neutrality and conductivity. The plasma contains a large amount of strong oxidative free radicals. The organic molecules are oxidized by these highly oxidizing substances and eventually degrade into carbon dioxide and water. The method has the defects that spark discharge is easy to generate and the normal operation of the discharge is destroyed. The breakdown of organic matter is not very safe due to the breakdown spark. Too low or too high frequency of purification efficiency or the like may have a great influence on the generation amount of the ionic body, even cause explosion. The adhesion properties of the free particles of bitumen are also one of the challenges of the plasma process.

Combustion process

The organic matters are decomposed into harmless inorganic matters such as carbon dioxide, water and the like at high temperature, so that the harmless treatment of asphalt fume can be ensured, and no peculiar smell is ensured in the production factory or the periphery. The combustion method is classified into a direct combustion method, a catalytic combustion method, a regenerative catalytic combustion method, and the like according to the temperature of combustion and the auxiliary medium. The following are the direct combustion method, the catalytic combustion method, the regenerative combustion method, and the other methods will not be described. The direct combustion method is that the fuel is directly fed into the incinerator together with the fume to burn. The method has mature process, high oil smoke removal rate under a certain temperature condition, complete incineration, suitability for the incineration treatment of the oil smoke under a medium-high temperature condition, and inapplicability to the oil smoke treatment with low concentration and large air quantity (if the oil smoke with low concentration and large air quantity keeps the combustion temperature above 800 ℃, the energy consumption is larger and the operation cost is high). The catalytic combustion method only needs to maintain the catalytic combustion temperature of 300-400 ℃ and has low fuel consumption when treating low-concentration fume. The viscosity and concentration of asphalt oil smoke fluctuate, so that the popularization and the use of the method are limited to a certain extent, the catalyst is too high in temperature due to adhesion and blockage, the high temperature of the catalyst is invalid, the operation cost is uncontrollable, and the operation stability is poor. The main body structure of the equipment consists of a combustion chamber, a heat accumulating carrier, a switching box, a valve body and the like. The working principle is as follows: the oil fume is preheated to about 750 ℃, and then heated to 800-850 ℃ in a reburning chamber, so that the volatile organic compounds in the oil fume are oxidized and decomposed into harmless carbon dioxide and water. The heat generated during the high-temperature gas oxidation is stored by the heat accumulator and is used for preheating the entering oil fume, so that the fuel consumption required by heating is saved, and the running cost is reduced.

The above six fume purification solutions, while technically advantageous, have not been completely solved by the three most fundamental problems.

First, the oil fume is not thoroughly purified

For example, in the absorption process oil fume purification scheme, asphalt oil fume is washed by water or base oil, asphalt components in the asphalt oil fume are absorbed, and part of waste liquid is generated and needs to be reprocessed.

Second, technical limitations

The asphalt fume purification scheme is started to be used in the 80 s. For example, the plasma method is used, although the asphalt fume gas treated by the high-temperature and low-temperature plasma method is degraded into carbon dioxide and water. Carbon emissions are also in environmental regulations. The method has the defects that spark discharge is easy to generate, normal operation of the discharge is damaged, the method is not very safe in the lampblack decomposition process due to breakdown and spark generation, the purification efficiency is low, if the voltage is low, the frequency is too high or too low, the occurrence of the ion body is greatly influenced, even explosion is caused, and fire accidents are caused. Adhesion of asphalt fume is also one of the difficulties of the ionic process.

Third, the asphalt fume purification cost is higher and higher

The composition components of the asphalt fume are complex, the purifying treatment effect of the common method on the asphalt fume is limited, and along with the stricter and stricter requirements of China on the emission of toxic and harmful gases, the emission indexes of various harmful gases are refined, and the purifying treatment requirement on the asphalt fume is higher.

At present, the research direction of the asphalt fume purification process is to combine two or more main treatment methods to form a combined process, which causes the design and combination of fume purification equipment to be more and more complex, and the asphalt fume purification cost to be higher, but no new breakthrough exists in the fume purification technology.

Disclosure of Invention

The invention aims to provide a superconducting asphalt fume purification system and a superconducting asphalt fume purification method, which are used for solving the technical problems of high cost, serious energy waste and small application range caused by complex fume treatment process in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the invention is to provide a superconducting asphalt fume purifying device, which comprises a fume purifying bin and a plurality of superconducting heat pipes. A purifying cavity is arranged in the oil fume purifying bin; the superconducting heat pipes penetrate through the oil smoke purifying bin, one ends of the superconducting heat pipes are arranged in the oil smoke purifying bin, and the other ends of the superconducting heat pipes are arranged outside the oil smoke purifying bin; the superconducting heat pipes are arranged at intervals along the top of the oil smoke purifying bin.

In one possible implementation, the superconducting heat pipe includes a superconducting heat pipe body, fins, and joints. The superconducting heat pipe body is internally filled with superconducting fluid; the fins are arranged on the upper part of the superconducting heat pipe body; the joint is sleeved on the superconducting heat pipe body, and the peripheral side of the joint is connected with the oil smoke purifying bin.

In one possible implementation manner, the superconducting asphalt fume purification device further comprises a protection cover and a connecting flange. The protective cover is of a cylindrical structure, is sleeved on the outer peripheral side of the oil smoke purifying bin and is divided into an upper part and a lower part, and a plurality of through holes are formed in the side wall of the upper part of the protective cover; the flange is set firmly in the periphery side of oil smoke purification storehouse bottom, just flange with the bottom of protection casing is connected.

In one possible implementation manner, the top of the protection cover is further provided with a protection plate, and the protection plate is obliquely arranged.

In one possible implementation manner, a guide ring is further arranged in the oil fume purifying bin, the guide ring is arranged at the top of the oil fume purifying bin, and the guide ring is arranged at an interval with the inner side wall of the oil fume purifying bin.

The superconducting asphalt fume purifying device provided by the invention has the beneficial effects that: compared with the prior art, the invention comprises an oil fume purifying bin and a plurality of superconducting heat pipes; the oil smoke that pitch produced in the pitch jar enters into the oil smoke purification storehouse, owing to be equipped with a plurality of superconducting heat pipes in the oil smoke purification storehouse, consequently the superconducting heat pipe can dispel the heat in the oil smoke, and organic particles in the oil smoke after consequently dispelling the heat condenses into the oil drop, and the oil drop drops back in the pitch jar. According to the invention, the oil fume purifying bin and the superconducting heat pipe are arranged on the asphalt tank, so that the oil fume is condensed and liquefied through the superconducting heat pipe, other equipment is not required for purifying the oil fume, maintenance is not required, and no operation cost is generated, thereby solving the technical problems of high cost, serious energy waste and small application range caused by complex oil fume treatment process in the prior art.

In order to achieve the above purpose, the invention adopts the technical scheme that the superconducting asphalt fume purifying system comprises an asphalt tank, an oil discharging tank, a plurality of superconducting asphalt fume purifying devices, a decompression diversion pipeline and a heating unit. The asphalt tank is internally used for containing asphalt and is provided with a feed inlet and a discharge outlet; the inside of the oil discharging pool is used for containing asphalt, and the oil discharging pool is provided with a feed inlet and a discharge outlet; the superconducting asphalt fume purifying devices are arranged at the upper parts of the asphalt tank and the oil discharge tank and are communicated with the asphalt tank and the oil discharge tank; the decompression diversion pipeline is arranged at the upper part of the oil unloading pool, one end of the decompression diversion pipeline is communicated with the asphalt tank, and the other end of the decompression diversion pipeline is communicated with the oil unloading pool; and the heating unit is arranged at the bottom in the asphalt tank, an interlayer is arranged at the top of the heating unit and used for separating the heating unit from asphalt, and the heating unit is used for heating the asphalt in the asphalt tank.

In one possible implementation, valves are arranged between the oil fume purifying bin and the asphalt tank or the oil unloading pool.

In one possible implementation, the oil discharging tank is further provided with a safety valve and a negative pressure valve.

In a third aspect, the embodiment of the present invention further provides a superconducting asphalt fume purifying method, including the superconducting asphalt fume purifying system related to the above embodiment, including the following steps S1 to S5:

s1, adding asphalt into the asphalt tank through a feed port;

s2, starting a heating unit, wherein the heating unit heats asphalt in the asphalt tank, the asphalt is heated, and organic particles in the asphalt generate oil fume;

s3, enabling the oil fume to enter the superconducting asphalt fume purifying device for condensation, radiating heat in the oil fume through the superconducting heat pipe, condensing the radiated oil fume into oil drops, and dripping under the action of gravity;

s4, when the pressure in the asphalt tank exceeds a preset value, part of the oil fume flows into the oil discharge tank through the decompression diversion pipeline;

s5, after the oil fume flowing into the oil discharge pool enters the superconducting asphalt fume purifying device, repeating the steps S1 to S4 for condensation and purification until the oil fume disappears.

The superconducting asphalt fume purifying system and the superconducting asphalt fume purifying method provided by the invention have the beneficial effects that: compared with the prior art, the invention comprises an asphalt tank, an oil discharging pool, a superconducting asphalt fume purifying device, a decompression and diversion pipeline and a heating unit; the asphalt in the asphalt tank is heated through the heating unit, the heated asphalt generates oil fume, the generated oil fume enters the oil fume purifying bin, heat in the oil fume can be radiated through the superconducting heat pipes because the superconducting heat pipes are arranged in the oil fume purifying bin, organic particles in the oil fume after the heat radiation is finished are condensed into oil drops, when the pressure in the asphalt tank exceeds a preset value, part of the oil fume is shunted to the oil unloading pool through the decompression shunt pipeline, and the oil fume is condensed in the oil unloading pool through the oil fume purifying device until the oil fume disappears. According to the invention, asphalt is heated only, condensation and liquefaction are carried out through the superconducting asphalt fume purifying device, fume is not required to be purified by other equipment, maintenance is not required, and operation cost is not generated, so that the technical problems of high cost, serious energy waste and small application range caused by complex fume treatment process in the prior art are solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a connection structure between a superconducting asphalt fume purification device and an asphalt tank, which is provided by an embodiment of the invention;

FIG. 2 is a schematic diagram of a superconducting heat pipe according to an embodiment of the present invention;

FIG. 3 is a schematic diagram showing the working effect of a superconducting fluid in a superconducting heat pipe according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an asphalt fume purification system according to an embodiment of the present invention;

1. an asphalt tank; 11. a heating unit; 12. an interlayer; 2. an oil discharging pool; 3. superconducting asphalt fume purifying device; 31. a fume purifying bin; 314. a guide ring; 32. a superconducting heat pipe; 4. a pressure reducing split flow pipe; 321. a superconducting heat pipe body; 322. a fin; 323. a joint; 311. a protective cover; 312. a connecting flange; 313. a protection plate; 5. a valve; 6. an asphalt pump; 41. a branch pipe; 21. a safety valve; 22. a negative pressure valve; 3211. a liquid superconducting liquid; 3212. gaseous superconducting liquid.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

It should be further noted that the drawings and embodiments of the present invention mainly describe the concept of the present invention, and on the basis of the concept, some specific forms and arrangements of connection relations, position relations, power units, power supply systems, hydraulic systems, control systems, etc. may not be completely described, but those skilled in the art may implement the specific forms and arrangements described above in a well-known manner on the premise of understanding the concept of the present invention.

When an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the same sense as the orientation or positional relationship shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" means two or more, and the meaning of "a number" means one or more, unless specifically defined otherwise.

The invention provides a superconducting asphalt fume purification system and a method thereof.

In order to achieve the above objective, referring to fig. 1, the present invention adopts a technical scheme that a superconducting asphalt fume purifying device 3 is provided, and includes a fume purifying bin 31 and a plurality of superconducting heat pipes 32, wherein a purifying cavity is arranged in the fume purifying bin 31; the superconducting heat pipe 32 penetrates through the oil smoke purifying bin 31, one end of the superconducting heat pipe 32 is arranged in the oil smoke purifying bin 31, and the other end of the superconducting heat pipe 32 is arranged outside the oil smoke purifying bin 31; a plurality of superconducting heat pipes 32 are arranged at intervals along the top of the fume purification bin 31.

The superconducting heat pipe 32 is also called a medium heat pipe. The heating principle is that a special medium is filled in a sealed metal pipe, the working medium is generally formed by mixing a plurality of inorganic active metals and compounds thereof, and the working medium is absorbed when being heated and is placed when being cooled, and the inside of the pipe is vacuum and pressureless. Compared with the common heat pipe, the superconducting heat pipe 32 is characterized in that: the applicable temperature is 50-1000 ℃, and the common liquid working medium such as water can only be applied to 100-350 ℃; the device is safe and reliable, has no problem of overpressure in the pipe, is not afraid of dry burning, saves steel, optimizes heat transfer, can eliminate heat conduction dead angles, and is convenient to install; good heat conducting performance, high heat conducting speed, high strength and high efficiency. The heat transfer of the superconducting heat pipe 32 increases with the temperature, and has good isothermal performance. Experiments demonstrated that each superconducting heat pipe 32 was 4m long. One end is placed in hot water at 100 ℃, the other end is placed in windless atmosphere, and the temperature difference between the hot end and the cold end is not more than 1 ℃. This means that the superconducting heat pipe 32 has good isothermal performance, i.e., can transfer a large amount of heat energy with a small temperature difference, has a small resistance to heat transfer, and has a greater flexibility in the shape of the superconducting heat pipe 32 because the internal pressure is not considered. Can be used in petrochemical industry, transportation, construction engineering and other industries, and has wide application fields.

The oil fume purifying bin 31 is arranged on the asphalt tank 1, and the oil fume purifying bin 31 is communicated with the asphalt tank 1, and the asphalt at the temperature of 120 ℃ is discharged because the asphalt in the market at present is transported at the temperature, and the asphalt does not contain moisture. Therefore, the oil fume generated by the asphalt in the asphalt tank 1 enters the oil fume purifying bin 31, and as the oil fume purifying bin 31 is internally provided with a plurality of superconducting heat pipes 32, the superconducting heat pipes 32 can radiate heat in the oil fume, so that organic particles in the oil fume after the heat radiation is finished are condensed into oil drops, and the oil drops drop into the asphalt tank 1.

Compared with the prior art, the superconducting asphalt fume purifying device provided by the embodiment of the invention comprises a fume purifying bin 31 and a plurality of superconducting heat pipes 32; the oil smoke generated by the asphalt in the asphalt tank 1 enters the oil smoke purifying bin 31, and as the oil smoke purifying bin 31 is internally provided with a plurality of superconducting heat pipes 32, the superconducting heat pipes 32 can radiate heat in the oil smoke, so that organic particles in the oil smoke after the radiation is completed are condensed into oil drops, and the oil drops drop into the asphalt tank 1. According to the invention, only the oil fume purifying bin 31 and the superconducting heat pipe 32 are arranged on the asphalt tank 1, the oil fume is condensed and liquefied through the superconducting heat pipe 32, other equipment is not needed for purifying the oil fume, maintenance is not needed, and running cost is not generated, so that the technical problems of high cost, serious energy waste and small application range caused by complex oil fume treatment process in the prior art are solved.

Referring to fig. 2 to 3, according to another embodiment of the present invention, a superconducting heat pipe 32 includes a superconducting heat pipe body 321, fins 322 and a joint 323. The superconducting heat pipe body 321 internally contains superconducting fluid; fins 322 are provided on the upper portion of the superconducting heat pipe body 321; the joint 323 is sleeved on the superconducting heat pipe body 321, and the outer peripheral side of the joint 323 is connected with the oil smoke purifying bin 31. Wherein, one end of the superconducting heat pipe body 321 is arranged inside the oil smoke purifying bin 31, and the other end of the superconducting heat pipe body 321 is arranged outside the oil smoke purifying bin 31.

Because the superconducting heat pipe body 321 is filled with the superconducting liquid, when the oil smoke contacts the superconducting heat pipe body 321, the liquid superconducting liquid 3211 absorbs the heat of the oil smoke and becomes the gaseous superconducting liquid 3212, and the gaseous superconducting liquid 3212 enters the other end of the superconducting heat pipe body 321, so that the heat of the oil smoke is exchanged with air, and the gaseous superconducting liquid 3212 after the heat exchange is condensed into liquid drops to one end of the superconducting heat pipe body 321 and is circulated back and forth.

Further, the number of the superconducting heat pipes 32 is six, and the six superconducting heat pipes 32 are equidistantly arranged at intervals along the periphery of the oil smoke purifying bin 31.

Referring to fig. 2, a specific embodiment of the present invention provided on the basis of the above embodiment is as follows, and the superconducting asphalt fume purifying apparatus 3 further includes a protective cover 311 and a connection flange 312. The protective cover 311 is of a cylindrical structure, the protective cover 311 is sleeved on the outer peripheral side of the oil fume purifying bin 31, the protective cover 311 is divided into an upper part and a lower part, and a plurality of through holes are formed in the side wall of the protective cover 311 of the upper part; the connecting flange 312 is fixedly arranged on the outer peripheral side of the bottom of the oil fume purifying bin 31, and the connecting flange 312 is connected with the bottom of the protective cover 311. Because the temperature of the oil smoke in the oil smoke purifying bin 31 is too high, the periphery of the oil smoke purifying bin 31 is covered with the protective cover 311, so that the oil smoke purifying bin 31 can be prevented from being impacted externally, and the oil smoke purifying bin 31 can be prevented from scalding personnel. The protection casing 311 is connected with the oil smoke purification bin 31 through the flange 312, and the later replacement is convenient. The side wall of the upper part of the protective cover 311 is provided with a plurality of through holes, so that the protective cover not only protects, but also facilitates air convection, and further facilitates heat exchange in the superconducting heat pipe body 321.

In the above embodiment, the fume purification cartridge 31 may be of a square cylinder type structure, a cylinder type structure, or a rectangular parallelepiped cylinder type structure.

Further, referring to fig. 2, in a specific embodiment of the present invention, the top of the protective cover 311 is further provided with a protective plate 313, and the protective plate 313 is obliquely arranged. The protection plate 313 not only has the effects of rain protection and sun protection, but also prevents objects such as stones from splashing on the superconducting heat pipe 32 and damaging the superconducting heat pipe 32.

Referring to fig. 2, on the basis of the above embodiment, a guide ring 314 is further disposed in the oil smoke purifying bin 31, the guide ring 314 is disposed at the top of the oil smoke purifying bin 31, and the guide ring 314 is disposed at a distance from the inner sidewall of the oil smoke purifying bin 31. When the condensed oil smoke flows along the top of the oil smoke purifying bin 31 towards the side wall, the oil smoke meets the guide ring 314, so that the oil smoke drops downwards along the guide ring 314, and the adhesion of the condensed oil smoke on the side wall of the oil smoke purifying bin 31 is avoided.

In a second aspect, in order to achieve the above object, the present invention adopts a technical scheme that provides a superconducting asphalt fume purifying system, which comprises an asphalt tank 1, an oil discharging pool 2, a plurality of superconducting asphalt fume purifying devices 3, a decompression diversion pipeline 4 and a heating unit 11. The inside of the asphalt tank 1 is used for containing asphalt, the inside of the asphalt tank 1 is provided with a charging port and a discharging port oil discharge tank 2, and the oil discharge tank 2 is provided with a charging port and a discharging port; the superconducting asphalt fume purifying device 3 is arranged at the upper parts of the asphalt tank 1 and the oil discharge tank 2, the superconducting asphalt fume purifying device 3 is communicated with the asphalt tank 1 and the oil discharge tank 2, the decompression diversion pipeline 4 is arranged at the upper part of the oil discharge tank 2, one end of the decompression diversion pipeline 4 is communicated with the oil discharge tank 2, and the other end of the decompression diversion pipeline 4 is communicated with the oil discharge tank 2; the heating unit 11 is arranged at the bottom in the asphalt tank 1, an interlayer 12 is arranged at the top of the heating unit 11, and the interlayer 12 is used for separating the heating unit 11 from asphalt; the heating unit 11 is used for heating the asphalt in the asphalt tank 1.

The superconducting asphalt fume purifying system is a closed communicating normal pressure system consisting of an asphalt tank 1, a decompression diversion pipeline 4, a superconducting asphalt fume purifying device 3, an oil discharge tank 2 and a heating unit 11, wherein the heating unit 11 is started, and a heat pipe effect is generated between the asphalt tank 1 and the superconducting asphalt fume purifying device 3 in the heating process of asphalt. The heat pipe effect is that the superconducting asphalt fume purifying device 3 and the asphalt tank 1 generate temperature difference, and heat flows rapidly. By utilizing the fact that a large amount of heat is absorbed or released when the state between liquid and gas changes, the asphalt of the liquid volatilizes in the heating process, and meanwhile, a large amount of heat and gas are absorbed and move to the superconducting heat pipe 32 (cold end), the liquid is condensed into liquid when meeting condensation, the heat is released, and the condensed liquid drops back to the asphalt tank 1 (hot end) under the action of gravity and enters infinite circulation. Part of the oil smoke enters the oil discharging pool 2 along the decompression diversion pipeline 4, so that the heat dissipation of the superconducting asphalt oil smoke purifying device 3 and the natural heat dissipation of the oil discharging pool 2 are carried out simultaneously, except that the part of the oil smoke is not circulated and can disappear due to the temperature reduction. The superconducting heat pipe 32 (cold end) and the asphalt tank 1 (hot end) can still work normally under the condition of small temperature difference and have superconductivity. The system is suitable for asphalt tanks 1 with various heating modes, and can treat the smoke quantity generated in the heating process of 200 tons of asphalt.

In the asphalt heating process, when the temperature of the oil fume reaches 50 ℃, the superconducting heat pipe 32 starts to do work, and heat higher than 50 ℃ in the oil fume is conducted out. Particles in the oil smoke after heat dissipation adhere to the inner wall of the oil smoke purifying bin 31, finally condense into liquid when meeting condensation, release heat outwards, gather the liquid into oil drops, and finally drop back to the asphalt tank 1 under the action of gravity, thus being circulated infinitely.

Compared with the prior art, the superconducting asphalt fume purifying system provided by the embodiment of the invention comprises an asphalt tank 1, an oil discharge tank 2, a superconducting asphalt fume purifying device 3, a decompression diversion pipeline 4 and a heating unit 11; the asphalt in the asphalt tank 1 is heated through the heating unit 11, the heated asphalt generates oil fume, the generated oil fume enters the oil fume purifying bin 31, heat in the oil fume can be radiated through the superconducting heat pipes 32 because the superconducting heat pipes 32 are arranged in the oil fume purifying bin 31, organic particles in the oil fume after the heat radiation is finished are condensed into oil drops, when the pressure in the asphalt tank 1 exceeds a preset value, part of the oil fume is shunted to the oil unloading pool 2 through the decompression shunt pipeline 4, and the oil fume is condensed in the oil unloading pool 2 through the oil fume purifying device 3 until the oil fume disappears. According to the invention, asphalt is heated only, condensation and liquefaction are carried out through the superconducting asphalt fume purifying device 3, fume is purified without other equipment, maintenance is not needed, and operation cost is not generated, so that the technical problems of high cost, serious energy waste and small application range caused by complex fume treatment process in the prior art are solved.

In the asphalt heating process, whether the power of heat in the oil fume discharged by the superconducting asphalt fume purifying device 3 meets the requirement of heat discharge in the oil fume or not directly relates to the problems of temperature, pressure, safety production and the like of oil fume in a tank and a system. The temperature in the oil fume rises along with the increase of the temperature of asphalt, the temperature in the oil fume is also related to the size of the oil area in the tank, and the larger the oil area is, the more heat is dissipated into the oil fume by asphalt.

The working power of the superconducting asphalt fume purifying device 3 is determined. The heat dissipation capacity of the asphalt is first determined, taking 50 m-wave superconducting asphalt thermal equipment as an example. The superconductive asphalt thermal equipment comprises an asphalt tank and a matched heating unit. The heating power is 132Kw/h, and the heating time (30-150 ℃) is 13 hours. The equipment main body is a rectangular horizontal tank body. The diameter of the tank body is 3m, and the length of the tank body is 8m. The maximum heat dissipation capacity in the asphalt heating process is represented by the following formula.

The calculation results are that: q=a (tw-to) F.

Wherein: q is the heat dissipation capacity, unit: w.

a is the comprehensive heat exchange coefficient w/(. Square.) DEG C.

tw is the surface temperature of the heat sink.

to is the in-can ambient temperature.

F is the heat dissipation area square meter.

The conditions are known:

the heat exchange coefficient is 10 w/square meter ℃ (low flow rate and low pressure) to 300 w/square meter ℃ (high flow rate and high pressure), and 10 w/square meter ℃ (low flow rate and low pressure) is taken. The surface temperature of the asphalt is 150 ℃; the ambient temperature in the tank is 30 ℃; the heat dissipation area is 24 square meters (the largest area in the tank is taken, the diameter of the tank body is 3m, the length of the tank body is 8m=24 square meters).

The heat dissipation capacity of the asphalt is as follows:

Q=a（tw-to）F

=10w/㎡·℃×（150℃-30℃）×24㎡

=28800w

=28.8Kw。

the heat transfer power range of each superconducting heat pipe 32 is 1-10Kw, and the power design range of the superconducting asphalt fume purification device is 6-60Kw according to the characteristics that the heat transfer of the superconducting heat pipes 32 rises along with the rising of the temperature and isothermal heat transfer.

The design power of the superconducting asphalt fume purification device 3 can not increase the heat dissipation capacity of asphalt due to high power. For example: the maximum heat dissipation capacity of the superconducting asphalt thermal equipment is 28.8Kw, which accounts for 1.5% of the temperature of the hot asphalt (heat dissipation capacity 28.8 Kw/heating power 1902Kw×100=1.5%). It is clear that the heat dissipation amount of the asphalt depends on the temperature and the heating power, and has no causal relationship with the power of the superconducting asphalt fume purification device 3.

The superconducting asphalt fume purification device 3 can be used in common equipment of other asphalt heating technologies. For example: and a heat conducting oil asphalt heating device. The diameter of the heat conduction oil asphalt heating tank body is 3m, the length of the tank body is 8m, the length of a heat conduction oil pipeline in the tank body is 64m, the diameter is 0.09m, the heat dissipation area is 18 square meters, the maximum heat dissipation area of the oil surface in the tank is 24 square meters (diameter is the length of the tank), the total of the two heat dissipation areas is 42 square meters, the heat dissipation capacity is (Q=a (tw-to) F) 50.5Kw, the design power of the oil fume purifying bin 31 is 1-60Kw, and the requirement of the equipment on oil fume purification in production is met, so that the heat conduction oil asphalt heating tank can be universal.

Further, the shape of the fins 322 may be rectangular, spiral, or fan-shaped.

Referring to fig. 3, a specific embodiment of the present invention is as follows, wherein the valves 5 are disposed between the oil smoke purifying bin 31 and the asphalt tank 1 or the oil discharging pool 2, and the valves 5 are provided to strictly control the speed, flow rate, etc. of the oil smoke entering the oil smoke purifying bin 31, so that the heat dissipation efficiency of the superconducting heat pipe 32 is maximized.

On the basis of the embodiment, the number of the asphalt tanks 1 is plural, and the oil fume purifying efficiency is improved by the plurality of asphalt tanks 1.

The present invention further provides a specific embodiment based on the above embodiment, wherein the oil discharging tank 2 is further provided with a safety valve 21 and a negative pressure valve 22.

The factors that create pressure in the asphalt tank 1 during heating of asphalt are three: the water content in the asphalt, the volume of the asphalt expands after being heated, and the oil fume expands after being heated. At present, all asphalt in the market is transported at a temperature of about 120 ℃ in unloading, the asphalt at the temperature does not contain moisture, and pressure factors generated in the heating process are eliminated; according to the research data of British Shell oil company, the volume expansion coefficient of asphalt is constant within 15-200 ℃, and is irrelevant to viscosity, and the heating temperature of common asphalt is 150 ℃, so that expansion factors are not considered; the only factor in the production pressure comes from the temperature of the oil flue gas. The superconducting asphalt fume purifying system is a closed space, so that the amount of fume is unchanged, and the change of the temperature in the fume is changed. The heating (30-150 ℃) time of the asphalt is generally about 13 hours (superconducting asphalt thermal equipment), and the temperature is a gradual and stepped rising process. The same is true for the temperature in the flue gas. The applicable temperature of the superconducting heat pipe 32 in the superconducting asphalt fume purification device 3 is 50-1000 ℃, the superconducting asphalt fume purification device starts to do work at 50 ℃, heat is led out, the temperature of the fume rises along with the rising of the temperature of the fume, the isothermal heat transfer is carried out in the heat transfer process, that is to say, the heat contained in the fume in the heating process, and the fume purification bin 31 does work to lead out the heat higher than 50 ℃. So that the temperature in the oil fume can not generate high aggregation temperature in the asphalt heating process. The temperature in the oil flue gas will be kept within 50 ℃. The thermal expansion coefficient of the oil fume in the asphalt tank 1 at normal temperature (25 ℃) and normal pressure is 0.00367/DEG C, and the expansion coefficient of the oil fume at 50 ℃ in the tank is 0.91 times (0.00367/DEG C× (50-25 ℃) =0.91). Because the oil fume purifying system is in a normal pressure intercommunication structural form, when the oil fume enters the decompression and diversion pipeline 4 at 50 ℃, the oil fume enters the oil unloading tank 2 after being naturally cooled, and the oil fume expansion phenomenon is eliminated. The work of the oil fume purifying bin 31 is limited to asphalt heating time, and the valve is closed after heating is finished, so that heat in the tank is prevented from being lost due to the work of the oil fume purifying bin 31, and waste is avoided. To ensure safe operation of the system production, a safety valve 21 (0.5 Kg) was added.

When the pressure intensity in the superconducting asphalt fume purifying system exceeds a preset value, the safety valve 21 is opened, so that the safety accident caused by the overhigh pressure intensity in the superconducting asphalt fume purifying system is avoided.

The asphalt in the asphalt tank 1 is gradually used up in the production process, and the superconducting asphalt fume purifying system is a closed normal pressure system. Thus, a negative pressure is generated in the system. Taking 50m thick asphalt tank 1 as an example, the negative pressure generated in asphalt tank 1 is obtained by the following formula: p1×v1=p2×v2 (boyle's law). The vessel pressure was set to 1m gauge to 1 Pa, the gas to be compressed. It is known in the art that when the air pressure P1 on the ground, where p2=1 pa and v1=1 m, is 100000 pa, v1=p2×v2/p1=1 pa×1m, 2/100000 pa=0.00001 pa, that is, when air of one ten thousandth cubic meter under normal pressure is put into a vacuum vessel of 1m, isothermal expansion conditions produce a pressure of 1 pa. If a 1m gauge vessel is to achieve a pressure of 1 megaPa, the above equation calculates that 10m gauge air is required to be compressed. It is known that the negative pressure in the asphalt tank 1 is less than 0.001 megapascal, and the pressure of the asphalt tank 1 is shunted due to the airtight and intercommunicating normal pressure of the system, and the shunt quantity of the oil smoke is determined by the volume of the oil discharging pool 2. The operating pressure of the asphalt pump 6 of the oil delivery apparatus was 0.8mpa. The negative pressure in the asphalt tank 1 can be completely eliminated, and the negative pressure in the asphalt tank 1 is ignored. In order to ensure safe use of the system. And a negative pressure valve 22 is arranged at the top of the oil discharge tank 2, so that safe production is ensured.

Further, the top of the oil smoke purifying bin 31 is of an arc-shaped structure, and oil drops conveniently slide down to the side wall of the oil smoke purifying bin 31.

Further, the connection end of the decompression diversion pipeline 4 and the oil discharge tank 2 is provided with an asphalt pump 6, the decompression diversion pipeline 4 is also provided with a diversion branch pipe 41 which is communicated with the oil discharge tank 2, and the diversion branch pipe 41 is provided with a valve 5. When the asphalt pump 6 and the valve 5 on the branch pipe 41 are closed at the same time, the oil fume cannot enter the oil discharge tank 2, so that the asphalt pump 6 plays a role in blocking; when asphalt needs to enter the oil discharge tank 2, the asphalt pump 6 is arranged to facilitate the asphalt pump 6 to enter the oil discharge tank 2 because of the characteristic of high viscosity of the asphalt, and oil smoke can enter the oil discharge tank 2 through the split branch pipe 41, so that the efficiency is improved.

In a third aspect, the embodiment of the present invention further provides a superconducting asphalt fume purifying method, which not only includes the superconducting asphalt fume purifying system related to the above embodiment, but also includes the following steps S1 to S5:

s1, adding asphalt into an asphalt tank 1 through a feed port;

s2, starting a heating unit 11, wherein the heating unit 11 heats asphalt in the asphalt tank 1; heating asphalt, and generating oil smoke by organic particles in the asphalt;

S3, enabling the oil fume to enter an oil fume purifying device 3 for condensation, radiating heat in the oil fume through a superconducting heat pipe 32, condensing the radiated oil fume into oil drops, and dripping under the action of gravity;

s4, when the pressure in the asphalt tank 1 exceeds a preset value, part of oil smoke flows into the oil discharge tank 2 through the decompression diversion pipeline 4;

s5, after the oil fume flowing into the oil discharge tank 2 enters the oil fume purifying device 3, repeating the steps S1 to S4 for condensation and purification until the oil fume disappears.

The following is a specific example:

1. structure design and manufacturing process of superconducting asphalt fume purifying device 3

1.1 structural design

Connecting flange 312, square tubular body, protection plate 313, protection cover 311, superconducting heat pipe 32, arc panel, guide ring 314, oil smoke purifying bin 31, pressure gauge and thermometer.

1.2, manufacturing process

1.2.1 The outer ring of the oil filler of the asphalt tank 1 is welded with a square flange, and a valve 5 is arranged.

1.2.2 the flange at the lower part of the fume purifying bin 31 is connected with the valve 5.

1.2.3 the perforated plate shield 311 is mounted at a height of about 800mm from the bottom up and out, the top of the shield 311 being connected to the shield 313.

Technical parameters of the perforated plate shield 311:

material quality: ordinary steel plate

Specification of: 1mm thick

Model: Q235A

Pore diameter: phi 10mm.

1.2.4 superconducting heat pipe 32 is inserted into the arc plate by about 250mm, and welded seamlessly.

The following are the technical parameters of the superconducting heat pipe 32:

material quality: 45# seamless steel pipe

Diameter: phi 45mm

Properties: vacuum

Tube pressure: less than or equal to 0 Mpa

Power: 1Kw-10Kw.

Arc plate technical parameters:

material quality: ordinary steel plate

Arc height: 100mm of

Diameter: 600mm

Plate thickness: 2mm.

1.2.5 Six superconducting heat pipes 32 are uniformly distributed and installed on the arc-shaped plate at the top of the oil smoke fine purification bin 31.

1.2.6 The arcuate plate is concave welded with a circular deflector ring 314.

1.2.7 The top of the oil fume purifying bin 31 is inserted outside the guide ring 314, and the bottom is inserted into the oil filler.

1.2.8 Superconducting asphalt fume purifying device 3, overall dimension: 1200mm x 600mm.

The superconducting asphalt fume purifying device 3 is a square outer cover, and a protection plate 313 at the top of the superconducting asphalt fume purifying device is of a rainproof design. Punching holes on the protective cover 311 facilitate heat dissipation of all parts of the oil smoke purifying bin 31, the square flange at the bottom is connected with the valve 5, the protective cover 311 provides safety protection for the heat dissipation parts, external force impact is prevented, and operators are scalded; the upper part of the circular oil fume purifying bin 31 is welded with the arc plate, the lower part of the oil fume purifying bin 31 is hermetically arranged with the valve 5, and the dropped asphalt drops are naturally cooled; the deflector 314 plays a role in guiding oil drops dropped by the arc plate, so that the horizontal deviation of the equipment is prevented, and the phenomenon of concentration at a certain point in the dropping process of the oil drops is prevented; the superconducting heat pipes 32 are uniformly arranged at intervals and inserted into the arc plates for sealing and welding, the superconducting heat pipes 32 start to do work from 50 ℃, heat in oil smoke is conducted out, and the isothermal heat transfer characteristic of the superconducting heat pipes 32 is achieved. The work form of the superconducting heat pipe 32 is forced heat dissipation. The pressure of the inner space of the asphalt tank 1, which is generated by heat of the oil fume, is reduced; the function of the arc plate is natural cooling, which is a component for realizing the heat pipe effect, the rising oil smoke air flow is blocked by the arc plate, and organic particles contained in the oil smoke adhere to the arc plate to be cooled and reduced into asphalt oil drops which drop back to the asphalt tank 1 along the guide ring 314 and the wall of the oil smoke purifying bin 31 under the action of gravity. The superconducting heat pipe 32, the arc plate and the oil fume purifying bin 31 are combined integrally, the heat dissipation modes of the superconducting heat pipe 32, the arc plate and the oil fume purifying bin are different, and the superconducting heat pipe 32 can reduce the temperature of oil fume through forced heat dissipation, so that the purpose of reducing the pressure in the asphalt tank 1 is achieved; the arc plate naturally dissipates heat to integrate organic particles in the oil smoke into oil drops and drop the oil drops back to the asphalt tank 1, so that the purpose of purifying and reducing the oil smoke is achieved.

2. Pressure-reducing and flow-dividing pipeline 4 structural design and manufacturing process

2.1 Working principle:

the decompression and diversion pipeline 4 is used for diverting part of oil smoke generated in the heating process in the asphalt tank 1 and naturally cooling the oil smoke, the pressure of the cooling system is provided with a oiling function pipeline, one end of the decompression and diversion pipeline 4 is connected with the asphalt tank 1, and the other end of the decompression and diversion pipeline 4 is connected with the oil unloading tank 2.

2.2 Structural design

Asphalt filler side-welding elbow-pipeline-asphalt pump 6-branch pipe 41-valve-temperature display-oil discharge pool 2.

2.3 The manufacturing process.

(1) The pipeline is connected with the side face of the oil filling port of the asphalt tank 1, and the other end is connected with the oil discharging pool 2.

(2) The pipeline is additionally provided with a branch pipe 41 at the oil outlet of the asphalt pump 6 of the oil discharging pool 2.

(3) The branch pipe 41 is additionally provided with a valve, so that the smoothness of the oil filling pipeline is ensured when the asphalt pump 6 runs.

(4) The asphalt pump 6 is not operated to ensure that the split branch pipe 41 is unblocked with the oil discharge tank 2.

(5) Part of oil smoke in the asphalt tank 1 enters a decompression diversion pipeline 4, and one path of oil smoke naturally cools down and enters an oil discharging pool 2.

(6) The oil fume enters the decompression and diversion pipeline 4, which is a natural cooling process, and the more the organic particles contained in the oil fume adhere to the pipeline wall. Until the flow rate is reduced to affect the production and use. The solution is to automatically clean the oil when oiling (oil temperature 100-120 ℃) next time.

(7) As a guarantee measure for safe production of the oil fume purifying system, the pressure of the pipeline is designed according to P0.01-P0.2 MPa (refer to 6.1.6 in the "City gas design Specification" B50028, the pressure of the city gas pipeline is divided into 7 grades according to the gas pressure P (unit: MPa), and 6 items are selected).

(8) 4.3.8 galvanized metal pipe gauge: the phi is 114mm multiplied by 6000mm, and flanges are welded at the two ends.

(9) The two pipes are in butt joint and are connected and fixed by screws.

(10) The branch pipe 41 is provided with a valve and a temperature display.

3. Design structure and manufacturing process of oil discharge tank

3.1 Principle of operation

The oil discharging pool 2 is a transition device for transferring asphalt, is an indispensable link in asphalt production, and is also a key device for completely purifying the internal pressure of a digestive oil smoke purifying system and part of oil smoke. Different from other oil discharging tanks 2, a superconductive asphalt fume purifying device (the same type as the superconductive asphalt fume purifying device arranged on the asphalt tank 1) arranged on the top and the asphalt tank 1 form a superconductive asphalt fume purifying system by a decompression diversion pipeline 4. The device also has a purifying function on oil fume generated during oil unloading of the oil truck. The oil receiving port is provided with a valve connecting hose, the front end of the hose is provided with a quick connector which is in butt joint with the oil truck, and after oil discharge is finished, the valve of the oil receiving port is closed.

3.2 Design structure

3.2.1 The oil discharging tank 2 is a horizontal rectangular tank.

3.2.2 The structure is as follows: the negative pressure valve 22, the safety valve 21, the oil fume purifying bin 31, the oil discharging port, the valve, the hose, the quick connector, the oil discharging pool 2 and the asphalt pump 6.

3.2.3 Manufacturing process

(1) And 5mm angle steel welding frame.

(2) The thickness of the steel plate of the oil tank body is 2mm.

(3) The oil outlet is provided with an asphalt pump 6.

(4) The oil outlet of the asphalt pump 6 is provided with a tee joint which is connected with the main pipeline and the branch pipe 41.

(5) The branch pipe 41 is additionally provided with a valve and is connected with the oil discharging pool 2.

(6) The negative pressure valve 22 is 4 inches of steel pipe and is 1000mm in height and additionally provided with a valve.

(7) One end of the hose is connected with the oil receiving port valve, and the other end of the hose is provided with a quick connector for docking with an oil truck.

(8) And the valve is closed after oil discharge is completed.

(9) The top is provided with a superconducting asphalt fume purifying device (the same type as the superconducting asphalt fume purifying device of the asphalt tank 1).

(10) A safety valve 21 and a negative pressure valve 22 are arranged at the top.

(11) The external dimensions of the oil discharge tank 2 are 5.5m long by 2.8m wide by 1m high.

4. Economic benefit of superconducting asphalt fume purification system

As a preferable scheme, the superconducting asphalt fume purification system is maintenance-free. And when the asphalt is heated, a heat source is turned off (superconducting asphalt thermal equipment is taken as an example), the asphalt enters a heat preservation stage, the temperature in the tank is not increased any more, and the oil smoke purifying bin 31 is doing work to conduct out the heat higher than 50 ℃ in the oil smoke. The more the arc plates in the oil fume purifying bin 31, the heat absorbing end of the superconducting heat pipe 32 and oil fume particles on the wall of the oil fume purifying bin 31 are gathered, the proper temperature is not reached, and oil drops cannot drop back to the asphalt tank 1. The fume purifying system can automatically clean fume when the asphalt is heated next time. The principle is that the more the oil smoke particles are adhered to the arc-shaped plate, the slower the speed of outward heat dissipation of the oil smoke particles on the heat absorption end of the superconducting heat pipe 32, and the oil smoke particles are adhered to the arc-shaped plate and other parts when asphalt is heated next time. Firstly, absorbing heat, softening, sliding and dripping, and completing self purification. The maintenance cost is saved.

As a preferable scheme, the oil fume purifying process of the superconducting asphalt oil fume purifying system does not generate material consumption and power consumption. The oil fume purifying system adopts a physical cooling method combining heat dissipation and natural cooling of the superconducting heat pipe 32, and utilizes the principle that the superconducting heat pipe 32 does work without external power, so that the oil fume purifying process does not generate cost. Energy saving and high efficiency.

5. Social benefit of superconducting asphalt fume purification system

Environment-friendly superconducting asphalt fume purification system

As a preferred scheme, the superconducting asphalt fume purifying system completes heating and processing of asphalt and purifying treatment of asphalt fume in a closed environment, and the asphalt fume generated in the whole process is solidified and reduced into asphalt by a physical cooling method, so that the superconducting asphalt fume purifying system has the advantages of energy conservation and environmental protection.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. Superconducting asphalt fume purification system, its characterized in that includes:

the asphalt tank (1) is used for containing asphalt, and the asphalt tank (1) is provided with a feed inlet and a discharge outlet;

The oil discharging tank (2) is internally used for containing asphalt, and the oil discharging tank (2) is provided with a feed inlet and a discharge outlet;

the superconducting asphalt oil smoke purifying device (3) comprises an oil smoke purifying bin (31) and a plurality of superconducting heat pipes (32), wherein a purifying cavity is arranged in the oil smoke purifying bin (31); a plurality of superconducting heat pipes (32) penetrate through the oil smoke purifying bin (31), one ends of the superconducting heat pipes (32) are arranged in the oil smoke purifying bin (31), and the other ends of the superconducting heat pipes (32) are arranged outside the oil smoke purifying bin (31); the superconducting heat pipes (32) are arranged at intervals along the top of the oil smoke purifying bin (31);

the decompression diversion pipeline (4) is arranged at the upper part of the oil discharge tank (2), one end of the decompression diversion pipeline (4) is communicated with the asphalt tank (1), and the other end of the decompression diversion pipeline (4) is communicated with the oil discharge tank (2); and

the heating unit (11) is arranged at the bottom in the asphalt tank (1), an interlayer (12) is arranged at the top of the heating unit (11), the interlayer (12) is used for separating the heating unit (11) from asphalt, and the heating unit (11) is used for heating the asphalt in the asphalt tank (1);

Wherein, superconductive pitch oil smoke purifier (3) are located pitch jar (1) with the upper portion of oil discharge pool (2), superconductive pitch oil smoke purifier (3) with pitch jar (1) with oil discharge pool (2) intercommunication.

2. The superconducting asphalt fume purification system of claim 1, wherein said superconducting heat pipe (32):

a superconducting heat pipe body (321) in which superconducting liquid is contained;

a fin (322) provided on the upper part of the superconducting heat pipe body (321);

the connector (323) is sleeved on the superconducting heat pipe body (321), and the outer peripheral side of the connector (323) is connected with the oil smoke purifying bin (31).

3. The superconducting asphalt fume purification system of claim 2, wherein said superconducting asphalt fume purification device further comprises:

the protective cover (311) is of a cylindrical structure, the protective cover (311) is sleeved on the outer peripheral side of the oil fume purifying bin (31), the protective cover (311) is divided into an upper part and a lower part, and a plurality of through holes are formed in the side wall of the protective cover (311) on the upper part;

the connecting flange (312) is fixedly arranged on the outer peripheral side of the bottom of the oil fume purifying bin (31), and the connecting flange (312) is connected with the bottom of the protective cover (311).

4. A superconducting asphalt fume purification system according to claim 3, wherein the top of said protective cover (311) is further provided with a protective plate (313), said protective plate (313) being arranged obliquely.

5. The superconducting asphalt fume purification system of claim 4, wherein a guide ring (314) is further arranged in the fume purification bin (31), the guide ring (314) is arranged at the top of the fume purification bin (31), and the guide ring (314) is arranged at a distance from the inner side wall of the fume purification bin (31).

6. The superconducting asphalt fume purification system according to claim 5, wherein valves (5) are arranged between the fume purification bin (31) and the asphalt tank (1) or the oil discharge tank (2).

7. The superconducting asphalt fume purification system according to claim 6, wherein the oil discharge tank (2) is further provided with a safety valve and a negative pressure valve.

8. A superconducting asphalt fume purification method, characterized in that a superconducting asphalt fume purification system according to any one of claims 1 to 7 is used, comprising the following steps S1 to S5:

s1, adding asphalt into the asphalt tank (1) through a feed port;

S2, starting a heating unit (11), wherein the heating unit (11) heats asphalt in the asphalt tank (1), the asphalt is heated, and organic particles in the asphalt generate oil smoke;

s3, enabling the oil fume to enter the superconducting asphalt fume purifying device (3) for condensation, radiating heat in the oil fume through the superconducting heat pipe (32), condensing the radiated oil fume into oil drops, and dripping under the action of gravity;

s4, when the pressure in the asphalt tank (1) exceeds a preset value, part of the oil fume flows into the oil discharge tank (2) through the decompression and diversion pipeline (4);

s5, after the oil fume flowing into the oil discharge pool (2) enters the superconducting asphalt fume purifying device (3), repeating the steps S1 to S4 for condensation and purification until the oil fume disappears.