CN113357653A - Asphalt flue gas treatment system - Google Patents
Asphalt flue gas treatment system Download PDFInfo
- Publication number
- CN113357653A CN113357653A CN202110664228.0A CN202110664228A CN113357653A CN 113357653 A CN113357653 A CN 113357653A CN 202110664228 A CN202110664228 A CN 202110664228A CN 113357653 A CN113357653 A CN 113357653A
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- China
- Prior art keywords
- sweep
- distribution chamber
- flue gas
- valve
- treatment system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
- B01D46/0008—Two or more filter elements not fluidly connected positioned in the same housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
Abstract
The invention discloses an asphalt flue gas treatment system, and aims to effectively solve the problem that heat accumulating type combustion equipment is easy to block. For this reason, the pitch flue gas processing system that this application provided, including heat accumulation formula combustion apparatus, heat accumulation formula combustion apparatus includes a plurality of distribution chambers, a plurality of regenerator and sets up in a plurality of regenerator tops with the combustion chamber of a plurality of regenerator intercommunication, every the bottom of distribution chamber is provided with distribution chamber air inlet, distribution chamber gas vent and distribution chamber and sweeps the air inlet, the distribution chamber gas vent is connected with the exhaust branch of purifying tail gas exhaust manifold, the distribution chamber sweeps the air inlet and sweeps the branch union coupling that sweeps of house steward, sweep house steward with purify tail gas exhaust manifold and connect, sweep and be equipped with in proper order along the gas flow direction on the house steward and sweep the admission valve, sweep and mix bellows and sweep the fan, sweep and be equipped with on the bellows and sweep the fresh air valve and sweep the high temperature valve, sweep the high temperature valve with the combustion chamber intercommunication.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to an asphalt flue gas treatment system.
Background
At present, for asphalt flue gas treatment, water spray washing, oil spray washing, electrostatic capture and other modes are generally adopted. The treatment mode has better efficiency in the aspect of removing oil mist in the asphalt smoke. However, the washing method causes secondary pollution, the electrostatic capture efficiency is greatly influenced by temperature, and the electrostatic capture has a fire risk. Only solid and liquid substances in the flue gas can be removed, and the effect of removing gaseous substances is not good.
In order to achieve the purpose of thorough treatment, the combustion method is applied to the field of asphalt flue gas treatment. However, the asphalt smoke contains low combustible components, so that the energy consumption of direct combustion is too large, and heat storage type combustion is adopted to reduce the energy consumption, but the asphalt smoke contains complex components such as high-viscosity tar and the like, so that heat storage type combustion equipment is easily blocked, and the safety problem is caused.
In summary, there is a need for improvement of the existing heat accumulating type asphalt flue gas combustion equipment
Disclosure of Invention
The invention mainly aims to provide an asphalt flue gas treatment system, and aims to effectively solve the problem that heat accumulating type combustion equipment is easy to block.
In order to solve the technical problems, the invention adopts the following technical scheme:
the asphalt flue gas treatment system comprises heat accumulating type combustion equipment, wherein the heat accumulating type combustion equipment comprises a plurality of distribution chambers, a plurality of regenerative chambers and combustion chambers which are arranged at the tops of the plurality of regenerative chambers and communicated with the plurality of regenerative chambers, and a distribution chamber air inlet, a distribution chamber air outlet and a distribution chamber purging air inlet are formed in the bottom of each distribution chamber;
the distribution chamber air inlet is connected with an air inlet branch pipe of a waste gas inlet main pipe, the distribution chamber air outlet is connected with an air outlet branch pipe of a tail gas purification and exhaust main pipe, the distribution chamber sweeping air inlet is connected with a sweeping branch pipe of a sweeping main pipe, the sweeping main pipe is connected with the tail gas purification and exhaust main pipe, each air inlet branch pipe is provided with an air inlet valve, and each air outlet branch pipe is provided with an air outlet valve
The blowing main pipe is sequentially provided with a blowing air inlet valve, a blowing air mixing box and a blowing fan along the gas flowing direction, the blowing air mixing box is provided with a blowing fresh air valve and a blowing high-temperature valve, and the blowing high-temperature valve is communicated with the combustion chamber.
Specifically, each purging branch pipe is provided with a purging control valve.
Specifically, the tail end of the purified tail gas exhaust main pipe is connected with a chimney.
The heat accumulating type combustion device comprises a heat accumulating type combustion device, a waste gas inlet manifold and a folded plate filter, wherein the folded plate filter and the heat accumulating type combustion device are sequentially arranged on the waste gas inlet manifold along the gas flowing direction.
Specifically, be equipped with a plurality of baffles along the air current direction in the folded plate filter, it is a plurality of the baffle will the folded plate filter is separated for a plurality of settlement zones that from left to right arrange in proper order, every all be equipped with on the baffle and communicate adjacent two the inlet port in settlement zone, every at least one side of baffle is equipped with the cover the baffle of inlet port, the baffle with correspond there is the clearance between the baffle.
Specifically, a drain valve is arranged at the bottom of the settling zone.
Specifically, a steel wire mesh filtering plate is further arranged at the gas outflow end of the folded plate filter
Specifically, a filter cartridge filter is further arranged between the folded plate filter and the heat accumulating type combustion equipment on the exhaust gas inlet main pipe.
Specifically, an air inlet fan is further arranged on the waste gas inlet main pipe and between the heat accumulating type combustion equipment and the filter cartridge filter.
Compared with the prior art, at least one embodiment of the invention has the following beneficial effects: under the normal operating condition, the heat accumulating type combustion equipment takes gas from the tail gas purification exhaust manifold through the purging air inlet valve, the gas is sent into the heat accumulating type combustion equipment through the purging fan for purging, and after the operation time is long, the oil mist which is not completely removed by the pretreatment equipment in the waste gas is accumulated on a heat accumulating layer of the heat accumulating type combustion equipment, so that equipment blockage can be caused. At this moment, can get high-temperature gas from heat accumulation formula combustion apparatus furnace through sweeping the high temperature valve, sweep the new blast gate and get partial cold wind, two strands of air currents mix and control at suitable temperature in sweeping the mixed bellows, sweep through high-temperature gas, gasify remaining burnt oil in the heat accumulation formula combustion apparatus, send into the interior dead burning of furnace, guarantee that the inside space of equipment is unobstructed, the prevention is blockked up.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an asphalt flue gas treatment system provided by an embodiment of the invention;
wherein: 1. a folded plate filter; 101. a partition plate; 102. a baffle plate; 103. a steel wire mesh filter plate; 2. a blowoff valve; 3. a cartridge filter; 4. a metal filter cartridge; 5. an air intake fan; 6. a heat accumulating type combustion apparatus; 7. a combustion chamber; 8. a regenerator; 9. purging the fan; 10. purging the intake valve; 11. purging the high-temperature valve; 12. blowing the air mixing box; 13. purging a fresh air valve; 14. a chimney; 15. a dispensing chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, an asphalt flue gas treatment system comprises a heat accumulating type combustion device 6, wherein the heat accumulating type combustion device 6 comprises a plurality of distribution chambers 15, a plurality of heat accumulators 8 and combustion chambers 7 which are arranged at the tops of the heat accumulators 8 and communicated with the heat accumulators 8, a distribution chamber air inlet, a distribution chamber exhaust port and a distribution chamber purging air inlet are arranged at the bottom of each distribution chamber 15, the distribution chamber air inlet is connected with an air inlet branch pipe of a waste gas inlet header pipe, the distribution chamber exhaust port is connected with an exhaust branch pipe of a purified tail gas exhaust header pipe, the distribution chamber purging air inlet is connected with a purging branch pipe of a purging header pipe, an air inlet valve is arranged on each air inlet branch pipe, an air outlet valve is arranged on each exhaust branch pipe, a purging control valve is arranged on each purging branch pipe, the purging header pipe is connected with the purified tail gas exhaust header pipe, and a purging air inlet valve 10 and a purging inlet valve are sequentially arranged on the purging header pipe along the gas flowing direction, The blowing and mixing box 12 and the blowing fan 9 are arranged, the blowing and mixing box 12 is provided with a blowing and new air valve 13 and a blowing and high temperature valve 11, and the blowing and high temperature valve 11 is communicated with the combustion chamber 7.
Under the normal operation condition of the heat accumulating type combustion equipment 6, the purging fan 9 is opened, the purging air inlet valve 10 is opened, the purging high-temperature valve 11 and the purging fresh air valve 13 are closed, and purging can be performed on the heat accumulating type combustion equipment 6. After the operation is carried out for a period of time or the pressure difference of the heat accumulating type combustion equipment 6 reaches a set value, the purging air inlet valve 10 is closed, the purging high-temperature valve 11 and the purging fresh air valve 13 are opened, high-temperature gas enters the purging air mixing box 12 through the purging high-temperature valve 11, normal-temperature gas enters the purging air mixing box 12 through the purging fresh air valve 13, the temperature of the gas flow after the air mixing box is controlled to be stable by adjusting the opening degrees of the high-temperature valve and the purging fresh air valve 13, and residual tar on a heat accumulating layer can be removed after the high-temperature gas flow enters the heat accumulating type combustion equipment 6. And fed into the combustion chamber 7 for combustion.
In this embodiment, under the normal operation condition, the heat accumulating type combustion device 6 takes gas from the exhaust gas purification manifold through the purging inlet valve 10, and the gas is sent to the heat accumulating type combustion device 6 through the purging fan 9 for purging. After the operation time is long, the oil mist in the exhaust gas which is not completely removed by the pretreatment device is accumulated in the heat accumulation layer of the heat accumulation type combustion device 6, and the device is likely to be blocked. At this moment, can get high-temperature gas from heat accumulation formula combustion apparatus 6 furnace through sweeping high temperature valve 11, sweep new blast gate 13 and get partial cold wind, two strands of air currents mix and control at suitable temperature in sweeping mixed bellows 12, sweep through high-temperature gas, gasify remaining coke in the heat accumulation formula combustion apparatus 6, send into the interior burning of the furnace of being happy, guarantee that the inside space of equipment is unobstructed, the prevention is blockked up.
Referring to fig. 1, specifically, the combustion chamber 7 is communicated with a purified tail gas exhaust main pipe through a branch pipe with a control valve, the tail end of the purified tail gas exhaust main pipe is connected with a chimney 14, and the high-temperature tail gas after combustion can be discharged into the air through the purified tail gas exhaust main pipe and the chimney 14.
Referring to fig. 1, in some embodiments, the asphalt flue gas treatment system further includes a folded plate filter 1, the folded plate filter 1 and the heat accumulating type combustion device 6 are sequentially arranged on the exhaust gas intake manifold along the gas flow direction, a plurality of partition plates 101 are arranged in the folded plate filter 1 along the gas flow direction, the folded plate filter 1 is divided into a plurality of settling areas sequentially arranged from left to right by the plurality of partition plates 101, each partition plate 101 is provided with an air inlet hole communicating two adjacent settling areas, the left side of each partition plate is provided with a baffle plate 102 covering the air inlet hole, and a gap exists between the baffle plate 102 and the corresponding partition plate 101.
In this embodiment, be equipped with folded plate filter 1 in heat accumulation formula combustion apparatus 6's upper reaches, be divided into a plurality of settlement zones that arrange from left to right in proper order through the baffle in the folded plate filter 1, all be equipped with the inlet port of two adjacent settlement zones of intercommunication on every baffle, the left side and/or the right side of every baffle are equipped with the baffle that covers the inlet port, the air current flows through each settlement zone from a left side to the right in folded plate filter 1, the large granule dust or the oil mist in the pitch flue gas can strike on baffle and baffle because of inertial action, then flow down along baffle and baffle, the deposit is in the bottom of settlement zone, realize getting rid of the solid in the pitch flue gas and the oil mist, the probability that lower reaches heat accumulation formula combustion apparatus 6 was blockked up by the tobacco tar has been reduced. It should be noted that, for those skilled in the art, a baffle plate may be provided on the right side of each partition plate or both the left and right sides of each partition plate.
Referring to fig. 1, in a practical design, a blowoff valve 2 may be provided at the bottom of the settling zone, and when large particle dust or oil mist is deposited on the bottom of the settling zone along the baffle and the partition, the deposited large particle dust or oil mist can be discharged out of the flap filter 1 by opening the blowoff valve 2.
Referring to fig. 1, it should be further explained that, in order to further achieve the interception of particulate dust or oil mist in the asphalt smoke, a filter cartridge filter 3 may be further disposed between the flap filter 1 and the regenerative combustion device 6 on the exhaust gas intake manifold, and the asphalt smoke flowing out of the flap filter 1 may be further intercepted by the filter cartridge filter 3.
Referring to fig. 1, specifically, a plurality of metal filter cartridges 4 are installed inside a filter cartridge filter 3, and the metal filter cartridges 4 are stacked together by a plurality of layers of metal meshes with different densities and are repeatedly folded to increase the filtering area. After the exhaust gas passes through the metal filter cartridge, the oil mist in the exhaust gas can be intercepted, and the oil mist can penetrate through the oil mist filter cartridge as little as possible due to the fact that the filtering area is higher and the filtering air speed is lower.
In some embodiments, the bottom plate of the settling area has an inclination to facilitate the flow and discharge of oil mist and impurities, a steel wire mesh filter plate 103 may be further added at the gas outflow end of the folded plate filter 1, and the steel wire mesh filter plate 103 covers the whole air duct to intercept fine particle dust and oil mist. In order to facilitate cleaning of the baffle plate 102, the partition plate 102 and the steel wire mesh filter plate 103, the baffle plate 102, the partition plate 102 and the steel wire mesh filter plate 103 are fixed inside the folded plate filter 1 in a detachable mode such as an inserting and screwing mode.
Referring to fig. 1, in other embodiments, an intake fan 5 is further provided on the exhaust gas intake manifold between the regenerative combustion device 6 and the cartridge filter 3. After the fan is arranged on the filter cartridge filter 3, the impurity content in the airflow is low, and the maintenance of the fan can be reduced. After the asphalt flue gas is pretreated by the folded plate filter 1 and the filter cartridge filter 3 in two stages, solid phase components and liquid phase components in the asphalt flue gas are greatly reduced, the asphalt flue gas is sent to a heat accumulating type combustion device 6 by a fan for combustion, and residual oil mist and gaseous components in the asphalt flue gas are decomposed at high temperature and then enter a chimney 14 for emission.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated. Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Claims (10)
1. The asphalt flue gas treatment system comprises a heat accumulating type combustion device (6), wherein the heat accumulating type combustion device (6) comprises a plurality of distribution chambers (15), a plurality of regenerative chambers (8) and combustion chambers (7) which are arranged at the tops of the plurality of regenerative chambers (8) and communicated with the plurality of regenerative chambers (8), and a distribution chamber air inlet, a distribution chamber air outlet and a distribution chamber purging air inlet are formed in the bottom of each distribution chamber (15);
the distribution chamber is characterized in that an air inlet of the distribution chamber is connected with an air inlet branch pipe of a waste gas inlet main pipe, an air outlet of the distribution chamber is connected with an air outlet branch pipe of a purified tail gas outlet main pipe, a sweeping air inlet of the distribution chamber is connected with a sweeping branch pipe of a sweeping main pipe, the sweeping main pipe is connected with the purified tail gas outlet main pipe, each air inlet branch pipe is provided with an air inlet valve, and each air outlet branch pipe is provided with an air outlet valve;
the method is characterized in that: sweep and be equipped with in proper order along gas flow direction on the house steward and sweep admission valve (10), sweep and mix bellows (12) and sweep fan (9), it sweeps new trend valve (13) and sweeps high temperature valve (11) to be equipped with on mixing bellows (12) to sweep, sweep high temperature valve (11) with combustion chamber (7) intercommunication.
2. The asphalt flue gas treatment system according to claim 1, wherein: and each purging branch pipe is provided with a purging control valve.
3. The asphalt flue gas treatment system according to claim 1, wherein: the tail end of the purified tail gas exhaust main pipe is connected with a chimney (14).
4. The asphalt flue gas treatment system according to claim 1, wherein: the combustion chamber (7) is communicated with the purified tail gas exhaust main pipe through a branch pipe with a control valve.
5. The asphalt flue gas treatment system according to any one of claims 1 to 4, wherein: the device also comprises a folded plate filter (1), wherein the folded plate filter (1) and the heat accumulating type combustion equipment (6) are sequentially arranged on the waste gas inlet main pipe along the gas flowing direction.
6. The asphalt flue gas treatment system according to claim 5, wherein: be equipped with a plurality of baffles (101) along the air current direction in folded plate filter (1), it is a plurality of baffle (101) will folded plate filter separates for a plurality of settlement zones that arrange from left to right in proper order, every all be equipped with on baffle (101) and communicate adjacent two the inlet port of settlement zone, every at least one side of baffle (101) is equipped with the cover baffle (102) of inlet port, baffle (102) and corresponding there is the clearance between baffle (101).
7. The asphalt flue gas treatment system according to claim 6, wherein: and a blow-down valve (2) is arranged at the bottom of the settling zone.
8. The asphalt flue gas treatment system according to claim 6, wherein: and a steel wire mesh filtering plate (103) is also arranged at the position of the gas outflow end of the folded plate filter.
9. The asphalt flue gas treatment system according to claim 6, wherein: the heat accumulating type combustion device is characterized by further comprising a filter cartridge filter (3), wherein the filter cartridge filter (3) is arranged on the exhaust gas inlet main pipe and is positioned between the folded plate filter (1) and the heat accumulating type combustion device (6).
10. The asphalt flue gas treatment system according to claim 9, wherein: and an air inlet fan (5) is also arranged on the waste gas inlet main pipe and between the heat accumulating type combustion equipment (6) and the filter cartridge filter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110664228.0A CN113357653A (en) | 2021-06-16 | 2021-06-16 | Asphalt flue gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110664228.0A CN113357653A (en) | 2021-06-16 | 2021-06-16 | Asphalt flue gas treatment system |
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| Publication Number | Publication Date |
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| CN113357653A true CN113357653A (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110664228.0A Pending CN113357653A (en) | 2021-06-16 | 2021-06-16 | Asphalt flue gas treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115247801A (en) * | 2021-12-30 | 2022-10-28 | 恩希爱（杭州）薄膜有限公司 | Regenerative combustion apparatus and method |
-
2021
- 2021-06-16 CN CN202110664228.0A patent/CN113357653A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115247801A (en) * | 2021-12-30 | 2022-10-28 | 恩希爱（杭州）薄膜有限公司 | Regenerative combustion apparatus and method |
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