CN110408730B - Steam exhaust device for steel slag hot-closed drain pipe gallery - Google Patents
Steam exhaust device for steel slag hot-closed drain pipe gallery Download PDFInfo
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- CN110408730B CN110408730B CN201910862296.0A CN201910862296A CN110408730B CN 110408730 B CN110408730 B CN 110408730B CN 201910862296 A CN201910862296 A CN 201910862296A CN 110408730 B CN110408730 B CN 110408730B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention discloses a steam exhaust device for a steel slag hot-closed drainage pipe gallery, and belongs to the field of steel slag hot-closed treatment systems. Steam entrapment ability weak to the piping lane among the prior art, steam escape phenomenon is serious, the equipment corrosion phenomenon is serious in the corridor, a small amount of CO harms staff occupational health scheduling problem in visibility difference and the steam, this scheme provides a slag hot stuffy drain pipe corridor exhaust apparatus, including hot stuffy device, the piping lane, water conservancy diversion wind channel, tee bend exhaust apparatus, the steam extraction section of thick bamboo, natural exhaust combination module and mechanical exhaust combination module, through the switching use of natural exhaust combination module and mechanical exhaust combination module, improved the entrapment ability of device to steam. Compared with the prior art, the invention can realize the comprehensive aims of improving the occupational health environment of workers, reducing the cost, having high operation efficiency, saving energy, being beneficial to the online maintenance of equipment and prolonging the service life of the online equipment.
Description
Technical Field
The invention relates to the field of steel slag hot-closed treatment systems, in particular to a steam exhaust device of a steel slag hot-closed drainage pipe gallery.
Background
As an effective technology for treating steel slag in converters, electric furnaces and the like, a steel slag hot-closed treatment system is accompanied by a large amount of steam generation in the steel slag treatment process, and the following three process methods are generally adopted at present:
firstly, a hot closed device is adopted for sealing, and a process method of draining water and natural draft of an exhaust side pipe gallery and an exhaust funnel is adopted, which is called a process method I for short;
secondly, a processing method of mechanical outward discharge of a corridor, a concrete ventilating duct, an end fan and an exhaust funnel is set, and the processing method is called a process method II for short;
and thirdly, arranging an airflow organization mode process method for orderly discharging the water and gas discharging side pipe gallery or the walkway side gallery according to a certain airflow organization by additionally arranging an axial flow fan at the inner section, which is called a process method III for short.
Although the first process method has the advantages of simple treatment method, low investment and the like, the steam exhaust effect is not ideal, particularly when the separation doors of the drainage and exhaust side pipe gallery and the pedestrian side pipe gallery are not closed in time, steam in the pedestrian side pipe gallery spreads all around, the sight of workers during inspection is influenced, a small amount of CO contained in the steam has certain harm to the health of the workers, and the workers must be provided with a portable CO alarm during inspection.
Although the steam exhaust effect of the second process method is obviously improved compared with that of the first process method, when a drainage and exhaust side pipe gallery or a pedestrian side pipe gallery arranged in parallel to the drainage and exhaust side pipe gallery is long in distance or a flat traffic gallery exists due to process factors, the steam exhaust effect of the drainage and exhaust side pipe gallery or the pedestrian side pipe gallery arranged in parallel to the drainage and exhaust side pipe gallery is often seriously affected, and a worker still needs to carry a portable CO alarm during routing inspection.
Although the steam exhaust effect of the third process method is obviously improved compared with that of the first process method, the adverse effect of the long drainage and exhaust side pipe gallery or the pedestrian side pipe gallery arranged in parallel with the long drainage and exhaust side pipe gallery or the adverse effect of the flat traffic gallery is reduced, the axial flow fan and the cable are seriously corroded due to the humid environment, the service life of the exhaust fan is seriously influenced, dangerous safety accidents are possibly generated, equipment is corroded or dismantled due to safety reasons often in the later period, the purpose of improving the safety inspection and vocational health environment of workers cannot be achieved, and the considerable influence is caused on normal production and the vocational health of the workers.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems that the steam trapping capacity of a pipe gallery in the prior art is weak, the steam escape phenomenon is serious, the corrosion phenomenon of equipment in the gallery is serious, the visibility is poor, and a small amount of CO in steam harms the occupational health of workers and the like, the scheme provides the steam exhaust device for the steel slag hot stuffy drainage pipe gallery, which can realize the comprehensive goals of improving the occupational health environment of workers, reducing the cost, operating efficiently, saving energy, being beneficial to the online maintenance of the equipment and prolonging the service life of the online equipment.
2. Technical scheme
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a slag hot stuffy drainage pipe gallery exhaust apparatus, including hot stifled device, the piping lane, the water conservancy diversion wind channel, three-way exhaust apparatus, the steam extraction section of thick bamboo, natural exhaust combination module and mechanical exhaust combination module, the piping lane is located one side of hot stifled device, water conservancy diversion wind channel level sets up in piping lane upper portion and is linked together with the piping lane, natural exhaust combination module sets up in water conservancy diversion wind channel upper portion, natural exhaust combination module one end links to each other with the water conservancy diversion wind channel, the other end is connected with the exhaust section of thick bamboo of vertical setting, mechanical exhaust combination module sets up in one side of natural exhaust combination, mechanical exhaust combination module one end is connected with natural exhaust combination module through three-way exhaust apparatus, the other end is connected with the exhaust section of thick bamboo, natural exhaust combination module and mechanical exhaust combination module share water conservancy diversion wind channel, three-way exhaust apparatus and exhaust section of thick bamboo, the construction cost has been practiced thrift.
Further, the piping lane includes drainage and exhaust side piping lane and walks people's side piping lane, drainage and exhaust side piping lane with walk people's side piping lane level setting at same height, be provided with the interval between the two, prevent that drainage and exhaust side piping lane's steam loss from walking people's side piping lane in, walk people's side piping lane and be located water conservancy diversion wind channel lower part, walk the lower part that people's side piping lane extended to the steam extraction section of thick bamboo, it is provided with the entry to walk people's side piping lane to be located steam extraction section of thick bamboo one side, it has the steam of CO to inhale when avoiding the worker to get into the piping lane operation.
Further, the water conservancy diversion wind channel intersect with the piping lane, the water conservancy diversion wind channel is linked together with the upper portion of drainage and exhaust side piping lane, the water conservancy diversion wind channel extends to the lower part of exhaust steam section of thick bamboo and communicates with the exhaust steam section of thick bamboo, makes mechanical exhaust combination module keep away from the piping lane, has satisfied safe operation standard.
Furthermore, the three-way steam exhaust device is a steam exhaust three-way pipe or a steam exhaust three-way valve, and is connected with the natural steam exhaust combined module and the mechanical steam exhaust combined module, so that the flexible switching between the natural steam exhaust combined module and the mechanical steam exhaust combined module is realized.
Furthermore, the natural exhaust combined module comprises a segmented natural exhaust air pipe and a natural exhaust air pipe opening and closing valve, the lower part of the natural exhaust air pipe of the air inlet section is connected with the pipe wall of the upper part of the diversion air channel, the upper part of the natural exhaust air pipe of the air inlet section is communicated with the inlet of the exhaust three-way pipe, one outlet of the exhaust three-way pipe is communicated with the mechanical exhaust combined module, the other outlet of the exhaust three-way pipe is communicated with the lower part of the natural exhaust air pipe of the air outlet section, the natural exhaust air pipe opening and closing valve is arranged at the joint of the exhaust three-way pipe and the natural exhaust air pipe of the air outlet section and used for closing the natural exhaust air pipe when the natural exhaust combined module is not used, the switching operation of the natural exhaust combined module and the mechanical exhaust combined module is realized, the upper part of the natural exhaust air pipe of the air outlet section is communicated with the side wall of the exhaust cylinder, and the organized air flow of the diversion air channel is utilized, through the natural draft of aiutage, make harmful substance concentration such as steam and CO satisfy the post requirement that the worker patrolled and examined and repair work in the piping lane.
Furthermore, the natural exhaust combined module is a segmented natural exhaust air pipe, the lower part of the natural exhaust air pipe of the air inlet section is connected with the pipe wall of the upper part of the diversion air channel, the upper part of the natural exhaust air pipe of the air inlet section is communicated with the inlet of an exhaust three-way valve, one outlet of the exhaust three-way valve is communicated with the mechanical exhaust combined module, the other outlet is communicated with the lower part of the natural exhaust air pipe of the air outlet section, the exhaust three-way valve is used for closing the natural exhaust air pipe when the natural exhaust combined module is not used, the switching operation of the natural exhaust combined module and the mechanical exhaust combined module is realized, the upper part of the natural exhaust air pipe of the air outlet section is communicated with the side wall of the exhaust barrel, organized air flow of the diversion air channel is utilized, and through natural suction force of the exhaust barrel, the concentration of harmful substances such as steam and CO in the pipe gallery meets the post requirements of inspection and overhaul work.
Furthermore, the mechanical steam exhaust combined module comprises a steam exhaust fan, a plurality of sections of mechanical steam exhaust air pipes, a steam exhaust fan flexible connection and a fastening piece thereof, the steam exhaust fan is arranged on a concrete foundation higher than the ground to avoid causing adverse effects on the steam exhaust fan due to waterlogging, an inlet air door is arranged at an air inlet of the steam exhaust fan, the inlet air door has the function of opening and closing a valve, the switching operation of the natural steam exhaust combined module and the mechanical steam exhaust combined module can be realized, the air inlet of the steam exhaust fan is connected with the mechanical steam exhaust air pipe at the air inlet section through the steam exhaust fan flexible connection and the fastening piece thereof, the mechanical steam exhaust air pipe at the air inlet section is communicated with a steam exhaust three-way pipe, the air outlet of the steam exhaust fan is connected with the mechanical steam exhaust air pipe at the air outlet section through the steam exhaust fan flexible connection and the fastening piece thereof, the mechanical steam exhaust air pipe at the air outlet section is connected with the side wall of the steam exhaust barrel, and can be strongly pressurized by the steam exhaust fan and exhausted out of the main workshop through the steam exhaust barrel when the natural air pipe is not smoothly ventilated, improve the steam entrapment rate, reduce the dwell time of the steam that contains harmful substances such as CO in the piping lane, provide the condition for the maintenance of natural exhaust combination module.
Furthermore, the mechanical steam exhaust combined module comprises a steam exhaust fan, a plurality of sections of mechanical steam exhaust air pipes, a steam exhaust fan flexible connection and a fastening piece thereof, the steam exhaust fan is arranged on a concrete foundation higher than the ground to avoid causing adverse effects on the steam exhaust fan due to waterlogging, an air inlet of the steam exhaust fan is connected with the mechanical steam exhaust air pipe of the air inlet section through the steam exhaust fan flexible connection and the fastening piece thereof, the mechanical steam exhaust air pipe of the air inlet section is communicated with a steam exhaust three-way valve, the switching operation of the natural steam exhaust combined module and the mechanical steam exhaust combined module can be realized through the opening and closing of the steam exhaust three-way valve, an air outlet of the steam exhaust fan is connected with the mechanical steam exhaust air pipe of the air outlet section through the steam exhaust fan flexible connection and the fastening piece thereof, the mechanical steam exhaust air pipe of the air outlet section is connected with the side wall of the steam exhaust barrel, and can be forced to the outside a main factory building through the steam exhaust barrel when the natural steam exhaust air pipe is not smooth in ventilation, improve the steam entrapment rate, reduce the dwell time of the steam that contains harmful substances such as CO in the piping lane, provide the condition for the maintenance of natural exhaust combination module.
Furthermore, the operation maintenance platform and the safety ladder stand are arranged around the steam exhaust device, so that workers can conveniently maintain and patrol the steam exhaust device, timely replacement operation after accidental faults of the steam exhaust device is facilitated, maintenance time is saved, and the dissipation amount of harmful steam such as CO is reduced.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) when using, preferentially use natural exhaust combination module to carry out the steam extraction, when natural exhaust combination module is difficult to satisfy the steam extraction demand or personnel go to the underground passage and handle emergent matters, use mechanical steam extraction combination module to carry out the steam extraction. The use of the low-cost natural steam-discharging combined module can maintain and prolong the service life of the fan forced steam-discharging working system equipment, thereby reducing the production cost and the operation cost, improving the steam capturing efficiency by using the mechanical steam-discharging combined module, and having high operation efficiency;
(2) through switching use of the natural steam exhaust combined module and the mechanical steam exhaust combined module under different conditions, stable operation of steam exhaust containing CO and other harmful substances in the drainage and exhaust side pipe gallery and the walking side pipe gallery is ensured, accidental injury of the CO and other harmful substances to workers is avoided, and working environment of the workers is improved;
(3) the high-level operation maintenance platform and the safety ladder stand are arranged around the steam exhaust device, so that the steam exhaust device can be conveniently patrolled and maintained by workers, maintenance time is saved, and working efficiency is improved.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view C-C of FIG. 1;
fig. 5 is a schematic cross-sectional view taken along line D-D of fig. 1.
The reference numbers in the figures illustrate: 1. a hot stuffer device; 2. a drainage and exhaust side pipe gallery; 3. a pedestrian side pipe gallery; 4. a diversion air duct; 5. a natural exhaust air pipe; 6. a three-way steam exhaust device; 7. the exhaust fan is in flexible connection and an inlet and outlet fastener thereof; 8. a steam exhaust fan; 9. a mechanical exhaust air duct; 10. a muffler; 11. the natural exhaust air pipe opens and closes the valve; 12. and a steam exhaust cylinder.
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples.
Example 1
As shown in fig. 1 to 5, a slag hot stuffy drain pipe gallery exhaust apparatus, including hot stifled device 1, the piping lane, water conservancy diversion wind channel 4, tee bend exhaust apparatus 6, exhaust steam section of thick bamboo 12, natural exhaust combination module and mechanical exhaust combination module, the piping lane is located one side of hot stifled device 1, water conservancy diversion wind channel 4 level sets up in piping lane upper portion and is linked together with the piping lane, water conservancy diversion wind channel 4 intersects with the piping lane, water conservancy diversion wind channel 4 extends to exhaust steam section of thick bamboo 12's lower part and communicates with exhaust steam section of thick bamboo 12, make mechanical exhaust combination module keep away from the piping lane, safe operating standard has been satisfied. Natural exhaust combination module sets up in 4 upper portions in water conservancy diversion wind channel, natural exhaust combination module one end links to each other with water conservancy diversion wind channel 4, the other end is connected with the exhaust section of thick bamboo 12 of vertical setting, mechanical exhaust combination module sets up in one side of natural exhaust combination, mechanical exhaust combination module one end is connected with natural exhaust combination module through tee bend steam extraction device 6, the other end is connected with exhaust section of thick bamboo 12, natural exhaust combination module and mechanical exhaust combination module sharing water conservancy diversion wind channel, tee bend steam extraction device and exhaust section of thick bamboo 12, the construction cost has been practiced thrift. The piping lane includes drainage and exhaust steam side piping lane 2 and walking person side piping lane 3, and drainage and exhaust steam side piping lane 2 and walking person side piping lane 3 level set up at same height, are provided with the interval between the two, prevent that drainage and exhaust steam side piping lane's steam loss from to walking in the person side piping lane, the preferred division door in interval here makes things convenient for the worker to open and close. Walk people's side piping lane 3 and be located 4 lower parts of water conservancy diversion wind channel, walk people's side piping lane 3 and extend to the lower part of exhaust drum 12, walk people's side piping lane 3 and be located exhaust drum 12 one side and be provided with the entry, inhale the steam that has CO when avoiding or reducing the worker and get into the piping lane operation. Diversion air duct 4 intersects with the piping lane, and diversion air duct 4 is linked together with the upper portion of drainage and exhaust side piping lane 2, and diversion air duct 4 extends to exhaust stack 12's lower part and communicates with exhaust stack 12, and exhaust stack 12 lower part is provided with the blind plate, is provided with the compartment door between diversion air duct 4 and the 12 lower part pipelines of exhaust stack, makes mechanical exhaust combination module keep away from the piping lane, has satisfied the safe operation standard. The sealed pipelines are arranged along the length directions of the drainage and steam exhaust side pipe gallery 2, the pedestrian side pipe gallery 3 and the guide air duct 4, and the optimized sequence of the pipeline materials is 06Cr18Ni11Ti stainless steel, galvanized plate, weathering resistant steel, plain carbon steel and the like which are added with or without titanium, so that the service life of the sealed pipelines is prolonged, and the production cost of the sealed pipelines is reduced. Sealed pipeline communicates to exhaust section of thick bamboo 12, at drainage and exhaust side piping lane 2, walk to be provided with the wind gap of the sealed pipeline of a plurality of on the pipe wall of people's side piping lane 3 and water conservancy diversion wind channel 4, increase wind gap quantity in the intensive department of steam, reduce wind gap quantity in the rare department of steam, realize the rational distribution in sealed pipeline wind gap, the flow direction setting of sealed pipeline according to the air current simultaneously, thereby reduce the elbow of pipeline, the drag reduction, it arranges outward in time high-efficiently to ensure to contain the steam of harmful matters such as CO in the piping lane, reduce the influence of sealed pipeline to piping lane operation space through the reasonable design of sealed pipeline.
The three-way steam exhaust device is a three-way steam exhaust pipe or a three-way steam exhaust valve, a natural steam exhaust combined module and a mechanical steam exhaust combined module are connected, flexible switching of the two is achieved, and the three-way steam exhaust pipe is selected to serve as the three-way steam exhaust device. The natural steam exhaust combined module comprises a segmented natural steam exhaust air pipe 5 and a natural steam exhaust air pipe opening and closing valve 11, the lower part of the natural steam exhaust air pipe 5 of the air inlet section is connected with the pipe wall of the upper part of the diversion air duct 4, the upper part of the natural steam exhaust air pipe 5 of the air inlet section is communicated with the inlet of the steam exhaust three-way pipe, one outlet of the steam exhaust three-way pipe is communicated with the mechanical steam exhaust combined module, the other outlet of the steam exhaust three-way pipe is communicated with the lower part of the natural steam exhaust air pipe 5 of the air outlet section, the natural steam exhaust air pipe opening and closing valve 11 is arranged at the joint of the steam exhaust three-way pipe and the natural steam exhaust air pipe 5 of the air outlet section, the natural steam exhaust air pipe opening and closing valve 11 is used for closing the natural steam exhaust air pipe 5 when the natural steam exhaust combined module is not used, and the switching operation of the natural steam exhaust combined module and the mechanical steam exhaust combined module is realized. The natural exhaust air pipe 5 of air-out section is connected in the lateral wall of exhaust stack 12, utilizes the organized air current of water conservancy diversion wind channel 4, through the natural draft of exhaust stack 12, makes harmful substance concentration such as steam and CO satisfy the post requirement that the worker patrolled and examined and overhauld the work in the piping lane.
The mechanical steam exhaust combined module comprises a steam exhaust fan 8, a multi-section mechanical steam exhaust air pipe 9, a steam exhaust fan flexible connection and a fastening piece 7 of the mechanical steam exhaust fan, wherein the steam exhaust fan 8 is arranged on a concrete foundation higher than the ground, so that the steam exhaust fan 8 is prevented from being adversely affected by waterlogging, the steam exhaust fan 8 is preferably a centrifugal fan, and the air volume and the air pressure of the centrifugal fan are large. The air intake of exhaust fan 8 is provided with the entry air door, and the entry air door has the start-stop valve function concurrently, can realize the switching operation of natural exhaust combined module and mechanical exhaust combined module. The air intake of exhaust fan 8 is connected with the mechanical exhaust tuber pipe 9 of air inlet section through exhaust fan flexible coupling and fastener 7, the mechanical exhaust tuber pipe 9 of air inlet section is connected with the exhaust three-way pipe, the air outlet of exhaust fan 8 is connected with the mechanical exhaust tuber pipe 9 of air-out section through exhaust fan flexible coupling and fastener 7, the mechanical exhaust tuber pipe 9 of air-out section is connected in the lateral wall of exhaust steam section 12, discharge to the main factory building outside through exhaust steam section 12 after the powerful pressurization of accessible exhaust fan 8 when natural exhaust tuber pipe 5 ventilates not smoothly, improve steam entrapment rate, reduce the detention time of the steam that contains harmful substances such as CO in the piping lane, the condition is provided for the maintenance of natural exhaust combination module.
When the working personnel use, preferentially use unpowered natural exhaust combination module, open natural exhaust tuber pipe on-off valve 11, close the fan air door of exhaust fan 8, make steam flow to natural exhaust tuber pipe 5 from water conservancy diversion wind channel 8, finally discharge through exhaust steam section of thick bamboo 12. When natural exhaust combined module is difficult to satisfy the exhaust demand or personnel go to the underground vestibule and handle emergent matters, need switch over mechanical exhaust combined module, close natural exhaust tuber pipe start-stop valve 11, open the entry air door of exhaust fan 8, start exhaust fan 8, under the wind pressure effect, steam flows to mechanical exhaust tuber pipe 9 from water conservancy diversion wind channel 4, via exhaust fan 8, finally discharges through exhaust section of thick bamboo 12.
Example 2
Example 2 is essentially the same as example 1, except that: the three-way steam exhaust device 6 selects a steam exhaust three-way valve, the natural steam exhaust combined module is a segmented natural steam exhaust air pipe 5, the lower part of the natural steam exhaust air pipe 5 of the air inlet section is connected with the pipe wall of the upper part of the diversion air duct 4, the upper part of the natural steam exhaust air pipe 5 of the air inlet section is communicated with the inlet of the steam exhaust three-way valve, one outlet of the steam exhaust three-way valve is communicated with the mechanical steam exhaust combined module, the other outlet of the steam exhaust three-way valve is communicated with the lower part of the natural steam exhaust air pipe 5 of the air outlet section, the steam exhaust three-way valve is used for closing the natural steam exhaust air pipe 5 when the natural steam exhaust combined module is not used, the switching operation of the natural steam exhaust combined module and the mechanical steam exhaust combined module is realized, the upper part of the natural steam exhaust air pipe 5 of the air outlet section is communicated with the side wall of the steam exhaust cylinder 12, and the organized air flow of the diversion air duct 4 is utilized, through the natural draft of aiutage 12, make harmful substance concentration such as steam and CO in the piping lane satisfy the post requirement that the worker patrolled and examined and repaired the work.
The mechanical steam exhaust combined module comprises a steam exhaust fan 8, a plurality of sections of mechanical steam exhaust air pipes 9, a steam exhaust fan flexible connection and a fastening piece 7 thereof, wherein the steam exhaust fan 8 is arranged on a concrete foundation higher than the ground to avoid causing adverse effects on the steam exhaust fan 8 due to waterlogging, an air inlet of the steam exhaust fan 8 is connected with the mechanical steam exhaust air pipe 9 of an air inlet section through the steam exhaust fan flexible connection and the fastening piece 7 thereof, the mechanical steam exhaust air pipe 9 of the air inlet section is communicated with a steam exhaust three-way valve, the switching operation of the natural steam exhaust combined module and the mechanical steam exhaust combined module can be realized through the opening and closing of the steam exhaust three-way valve, an air outlet of the steam exhaust fan 8 is connected with the mechanical steam exhaust air pipe 9 with an air outlet section through the steam exhaust fan flexible connection and the fastening piece thereof, the mechanical steam exhaust air pipe 9 of the air outlet section is connected with the side wall of a steam exhaust cylinder 12, and the mechanical steam exhaust air pipe 8 can be forcibly pressurized and, improve the steam entrapment rate, reduce the dwell time of the steam that contains harmful substances such as CO in the piping lane, provide the condition for the maintenance of natural exhaust combination module.
Example 3
Example 3 is essentially the same as example 2, except that: the air outlet of the steam exhaust fan 8 of the mechanical exhaust combined module is connected 7 with a mechanical steam exhaust air pipe 9 of an air outlet section through flexible connection of the steam exhaust fan and a fastener of the steam exhaust fan, and the mechanical steam exhaust air pipe 9 of the air outlet section is provided with a silencer 10, so that the noise of the working environment can meet the noise requirement of occupational health.
Example 4
Example 4 is essentially the same as example 3, except that: the operation maintenance platform and the safe crawling ladder are arranged around the steam exhaust device, so that workers can conveniently maintain and patrol the steam exhaust device, timely replacement operation after accidental faults of the steam exhaust device is facilitated, maintenance time is saved, and the dissipation amount of harmful steam such as CO is reduced. Lifting lugs are arranged on the natural steam exhaust air pipe 5, the three-way steam exhaust device, the steam exhaust fan 8, the mechanical steam exhaust air pipe 9, the silencer 10 and the natural steam exhaust air pipe opening and closing valve 11, and the installation of the device can be conveniently realized by utilizing a travelling crane in a main plant or a lifting device of a mobile crane outside the main plant.
Example 5
Example 5 is essentially the same as example 4, except that: in order to reduce the influence of the exhaust fan 8 on the existing electric facilities, the frequency conversion, soft start and direct start optimization schemes are selected, meanwhile, the existing electric facilities are correspondingly transformed, and the influence of the device on a power grid during starting is reduced. The lighting lamp is arranged in the plant, so that workers can conveniently operate under the condition of insufficient illumination in the daytime or at night.
The invention and its embodiments have been described above schematically, without limitation, and the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The representation in the drawings is only one of the embodiments of the invention, the actual construction is not limited thereto, and any reference signs in the claims shall not limit the claims concerned. Therefore, if a person skilled in the art receives the teachings of the present invention, without inventive design, a similar structure and an embodiment to the above technical solution should be covered by the protection scope of the present patent.
Claims (9)
1. The utility model provides a slag hot stuffy drain pipe gallery exhaust apparatus which characterized in that: the combined type heat-seal steam exhaust device comprises a heat-seal device (1), a pipe gallery, a diversion air duct (4), a three-way steam exhaust device (6), a steam exhaust cylinder (12), a natural steam exhaust combined module and a mechanical steam exhaust combined module, wherein the pipe gallery is positioned on one side of the heat-seal device (1), the diversion air duct (4) is horizontally arranged on the upper part of the pipe gallery and communicated with the pipe gallery, the natural steam exhaust combined module is arranged on the upper part of the diversion air duct (4), one end of the natural steam exhaust combined module is connected with the diversion air duct (4), the other end of the natural steam exhaust combined module is connected with the vertically arranged steam exhaust cylinder (12), one end of the mechanical steam exhaust combined module is connected with the natural steam exhaust combined module through the three-way steam exhaust device (6), and the other end of the mechanical steam exhaust combined module is connected with the steam exhaust cylinder (12); mechanical exhaust combination module includes exhaust fan (8), the mechanical exhaust tuber pipe (9) and the exhaust fan flexible coupling of multistage and fastener (7), the air intake of exhaust fan (8) is connected with the mechanical exhaust tuber pipe (9) of air inlet section through exhaust fan flexible coupling and fastener (7), and mechanical exhaust tuber pipe (9) and the exhaust three-way valve of air inlet section are linked together, and the air outlet of exhaust fan (8) is connected with the mechanical exhaust tuber pipe (9) of air-out section through exhaust fan flexible coupling and fastener (7), and the mechanical exhaust tuber pipe (9) of air-out section communicate in the lateral wall of exhaust section (12).
2. The steel slag hot stuffy drain pipe gallery steam exhaust device according to claim 1, wherein: the piping lane include drainage and exhaust steam side piping lane (2) and walk people's side piping lane (3), drainage and exhaust steam side piping lane (2) and walk people's side piping lane (3) level setting at same height, are provided with the interval between the two, walk people's side piping lane (3) and be located water conservancy diversion wind channel (4) lower part, walk the lower part that people's side piping lane (3) extended to exhaust steam section of thick bamboo (12), walk people's side piping lane and be located exhaust steam section of thick bamboo one side and be provided with the entry.
3. The steel slag hot stuffy drain pipe gallery steam exhaust device according to claim 2, wherein: diversion wind channel (4) intersect with the pipe gallery, diversion wind channel (4) are linked together with the upper portion of drainage and exhaust side pipe gallery (2), diversion wind channel (4) extend to the lower part of exhaust steam section of thick bamboo (12) and communicate with exhaust steam section of thick bamboo (12).
4. The steel slag hot stuffy drain pipe gallery steam exhaust device according to claim 1, wherein: the three-way steam exhaust device (6) is a three-way steam exhaust pipe or a three-way steam exhaust valve.
5. The steel slag hot stuffy drain pipe gallery steam extraction device of claim 4, wherein: the natural steam exhaust combined module comprises a segmented natural steam exhaust air pipe (5) and a natural steam exhaust on-off valve (11), the lower part of the natural steam exhaust air pipe (5) of the air inlet section is connected with the pipe wall of the upper part of the diversion air duct (4), the upper part of the natural steam exhaust air pipe (5) of the air inlet section is communicated with the inlet of a steam exhaust three-way pipe, one outlet of the steam exhaust three-way pipe is communicated with the mechanical steam exhaust combined module, the other outlet of the steam exhaust three-way pipe is communicated with the lower part of the natural steam exhaust air pipe of the air outlet section, the natural steam exhaust air pipe on-off valve (11) is arranged at the joint of the steam exhaust three-way pipe and the natural steam exhaust air pipe of the air outlet section, and the upper part of the natural steam exhaust air pipe (5) of the air outlet section is communicated with the side wall of the steam exhaust barrel (12).
6. The steel slag hot stuffy drain pipe gallery steam extraction device of claim 4, wherein: the natural exhaust combined module is a segmented natural exhaust air pipe (5), the lower part of the natural exhaust air pipe (5) of the air inlet section is connected with the upper pipe wall of the diversion air channel (4), the upper part of the natural exhaust air pipe (5) of the air inlet section is communicated with the inlet of the exhaust three-way valve, one outlet of the exhaust three-way valve is communicated with the mechanical exhaust combined module, the other outlet of the exhaust three-way valve is communicated with the lower part of the natural exhaust air pipe of the air outlet section, and the upper part of the natural exhaust air pipe (5) of the air outlet section is communicated with the side wall of the exhaust barrel (12).
7. The steel slag hot stuffy drain pipe gallery steam extraction device of claim 1, 4 or 5, wherein: the mechanical steam exhaust combined module comprises a steam exhaust fan (8), a plurality of sections of mechanical steam exhaust air pipes (9), a plurality of sections of mechanical steam exhaust fan flexible connection and fasteners (7) of the mechanical steam exhaust air pipes, wherein the steam exhaust fan (8) is arranged on a concrete foundation higher than the ground, an inlet air door is arranged at an air inlet of the steam exhaust fan (8), the air inlet of the steam exhaust fan (8) is connected with the mechanical steam exhaust air pipes (9) of an air inlet section through the steam exhaust fan flexible connection and the fasteners (7), the mechanical steam exhaust air pipes (9) of the air inlet section are communicated with a steam exhaust three-way pipe, an air outlet of the steam exhaust fan (8) is connected with the mechanical steam exhaust air pipes (9) of an air outlet section through the steam exhaust fan flexible connection and the fasteners (7), and the mechanical steam exhaust air pipes (9) of the air outlet section are communicated with the side wall of a steam exhaust cylinder (12).
8. The steel slag hot stuffy drain pipe gallery steam extraction device of claim 1, 4 or 6, wherein: the exhaust fan (8) is arranged on a concrete foundation higher than the ground.
9. The steel slag hot stuffy drain pipe gallery steam exhaust device according to claim 1, wherein: an operation maintenance platform and a safety ladder are arranged around the steam exhaust device.
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| CN201910862296.0A CN110408730B (en) | 2019-09-12 | 2019-09-12 | Steam exhaust device for steel slag hot-closed drain pipe gallery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910862296.0A CN110408730B (en) | 2019-09-12 | 2019-09-12 | Steam exhaust device for steel slag hot-closed drain pipe gallery |
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|---|---|---|---|---|
| JPH06240314A (en) * | 1993-02-22 | 1994-08-30 | Nippon Steel Corp | Device for cooling and crushing treatment of high temperature slag |
| CN104596017A (en) * | 2014-12-11 | 2015-05-06 | 中国核电工程有限公司 | Ventilation cooling device for heating element storage factory |
| CN109186030A (en) * | 2018-10-25 | 2019-01-11 | 山东建筑大学 | A kind of integrated pipe canal ventilating system of gravity-flow ventilation in conjunction with mechanical exhaust |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06240314A (en) * | 1993-02-22 | 1994-08-30 | Nippon Steel Corp | Device for cooling and crushing treatment of high temperature slag |
| CN104596017A (en) * | 2014-12-11 | 2015-05-06 | 中国核电工程有限公司 | Ventilation cooling device for heating element storage factory |
| CN109186030A (en) * | 2018-10-25 | 2019-01-11 | 山东建筑大学 | A kind of integrated pipe canal ventilating system of gravity-flow ventilation in conjunction with mechanical exhaust |
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| Title |
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| 钢渣热闷排水管廊结构设计分析;董涛 等;《工业建筑的可持续发展全国学术会议论文集》;20160622;"1.1.1蒸汽通道与人行通道分离"，"1.1.2密封的蒸汽通道端部设置排蒸汽烟囱"部分，图1-2 * |
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