CN101074848A

CN101074848A - System for treating kiln waste gas without external energy

Info

Publication number: CN101074848A
Application number: CNA2007100657672A
Authority: CN
Inventors: 鲜荣忠
Original assignee: 鲜荣忠
Priority date: 2007-04-03
Filing date: 2007-04-03
Publication date: 2007-11-21

Abstract

This invention provides an exhaust gas managing system without other energy for the furnace, it includes the furnace, funnel, dealing with equipment. The characteristic is that there is a heat exchanger inside or outside the funnel, the inlet of the exchange is through with the channel of the funnel, and the outlet of which is through with the inlet of the dealing with equipment, then the outlet of the dealing with equipment is connected to the funnel. It only takes advantage of the heat from the smoke, so it is not only solve the resistance of the dealing with device and the whole system and realize the whole system running normally without the high power and electricity fan, but also it reduces the cost of the smoke managing, protect the environment, reduce the power usage and cost. The structure of this invention is simple, reasonable, small, saving power, safe. The invest and cost of running is low, the effectiveness is good, at last it suitable to all industry and civil furnace and the application area is broad.

Description

System for treating kiln waste gas without external energy

Technical field

The present invention relates to a kind of stove waste gas pollution control and treatment system, especially a kind ofly need not external energy but utilize the waste gas self-energy to realize the governing system of running.

Background technology

For removing gas, the solid contaminant in the flue gas, no matter be industrial stove or large-scale life stove, all corresponding waste gas pollution control and treatment facility that has been equipped with reaches to national standard the pollutant levels that enter in the atmosphere.At present, the facility of smoke gas treatment and process are roughly as follows: the high-temperature flue gas that stove is discharged at first enters cooling infrastructure sharply lowers the temperature, and sends into treatment facility again and reduces pollutant levels, sends into the chimney emptying through blower fan then.The greatest drawback that this tupe exists is: the one, make energy approach exhaustion in cooling procedure of high-temperature flue gas self; The 2nd, the running of whole system is entirely by blower fan input energy.The electric energy expense that blower fan running is consumed in the middle of this is expensive, be equivalent to the whole governing system required expense that turns round, this its burden concerning enterprise is heavy, cause many enterprises means of having to take to deal with, during as leader's procuratorial work, during environmental monitoring, just running symbolically when other unit visits, then shut down fully at ordinary times, perhaps running on daytime, the stall in evening, still cause pollution to environment, this ecological environment that mankind are depended on for existence is extremely carefree, therefore, is necessary fully prior art is improved, make enterprise in the governing system running, not spend running cost, perhaps reduce running expense significantly, long-term to guarantee governing system, run well, realize the real improvement of environmental pollution.

Summary of the invention

The object of the present invention is to provide a kind of blower fan that do not re-use, do not spend or reduce running expense significantly, help the system for treating kiln waste gas without external energy of environmental protection.

The present invention is achieved in that a kind of system for treating kiln waste gas without external energy, comprise stove, chimney, treatment facility, it is characterized in that in the chimney or chimney is provided with heat exchanger outward, the import of heat exchanger is communicated with the stove flue, and outlet is communicated with the treatment facility smoke inlet, and the exhanst gas outlet of treatment facility is communicated with chimney again.So that under the stack draught effect, make high-temperature flue gas enter heat exchanger, heat energy is passed to the cold flue gas that enters in the chimney by partition, risen in cold flue gas heating back, flue gas in the heat exchanger is then lowered the temperature, and enter treatment facility removal pollutant, and the flue gas through purifying returns in the chimney again, and the heat energy of being passed to flue gas by chimney height and heat exchanger produces negative pressure and emptying continuously.

Described heat exchanger is an obturator, about obturator or front and back or upper and lower sides are provided with import and export, and be communicated with stove flue and treatment facility smoke inlet respectively by pipeline, can be provided with upright or horizontal baffle in the obturator, the front and back of dividing plate or about or up and down both sides link to each other with the obturator inwall, remaining both sides in addition and obturator keep spacing, so that form exhaust gases passes in the corresponding both sides of dividing plate.So that enter the high-temperature flue gas of heat exchanger, by dividing plate in it and wall, rapidly carry out heat exchange, thereby reach the stove flue gas cool-down with the outer cold flue gas of obturator, make the purpose that enters the flue gas intensification in the chimney after the improvement simultaneously.

Described heat exchanger is made as cylinder or cuboid or gengon or polygon polyhedral body or polygon multiple edge body, is located at the bottom or the middle part of chimney, so that allow the high-temperature flue gas of stove discharge heat energy at this, returning chimney again after administering increases heat energy.

Described heat exchanger is made as obturator, which is provided with import and export, and be communicated with stove flue and treatment facility smoke inlet respectively by pipeline, the sealing body wall is provided with insulating, be provided with flue in the obturator, the inlet of flue is communicated with the treatment facility exhanst gas outlet, and the outlet of flue is communicated with chimney.So that enter the high-temperature flue gas of heat exchanger, by partition rapidly with flue in cold flue gas carry out heat exchange, enter treatment facility behind the flue gas cool-down and remove pollutant thereby make, enter the emptying that makes progress in the chimney behind the cold flue gas heat temperature raising in the flue simultaneously.

Described chimney middle and upper part is provided with the following small-power accessory fan of 30KW, and the air outlet of this blower fan extends in the chimney by pipeline, so that as required, replenishes wind-force in chimney, to increase the exhausting ability of chimney in good time.

Described chimney bottom is provided with air inlet pipe, and an end of this air inlet pipe places in the chimney, and the other end is communicated with the treatment facility outlet flue, so that the cold flue gas after will administering is sent into chimney bottom.

Described treatment facility is a sack cleaner of the prior art, perhaps electric cleaner, and perhaps screen collector, perhaps other deduster, or absorb the packed bed of gaseous contaminant or other scrubbing dust falling device.

The exhanst gas outlet of described deduster links to each other by the inlet on pipeline and chimney middle part or top, so that after the cold flue gas after the cooling, dedusting enters chimney, and the also emptying of rising automatically under from the hot flue gas effect of chimney middle and lower part.

Described stove is a coal-burning boiler of the prior art, or metallurgical electric furnace, coke oven, perhaps large and medium-sized stove such as incinerator.

The present invention compared with prior art has following advantage and effect: adopt such scheme; only use the heat energy of flue gas self in the system, can overcome the resistance of treatment facility and whole system, realize the long-term of whole system; run well; it is big to need not to re-use power; the blower fan of power consumption has fundamentally solved the high problem of running expense in the existing smoke gas treatment process, is the protection environment; reduce enterprise energy consumption; the major action that reduces cost, the present invention is simple in structure, and is rationally distributed; do not take up an area of; energy-saving and cost-reducing, safe and reliable, invest little; operating cost is low; good energy-conserving effect is applicable to all industrial furnaces and civilian stove, and its scope of application is comparatively extensive.

Description of drawings

Fig. 1 is the present invention's system architecture schematic diagram;

Fig. 2 is a heat spreader structures schematic diagram among Fig. 1;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is another system architecture schematic diagram of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is described further, is not limited thereto but hold within the present invention.

Stove 1 links to each other by the inlet 31 of pipeline 2 with the heat exchanger left side, heat exchanger 3 is a closing cylinder, be installed in the bottom in the chimney 9, heat exchanger 3 cylinders middle part is provided with the dividing plate 32 that its front and back side links to each other with the cylinder inwall, on the dividing plate 32, downside and cylinder inwall keep spacing, thereby on dividing plate, downside forms exhaust gases passes 33, the outlet 34 on heat exchanger 3 right sides links to each other with the smoke inlet 41 of sack cleaner 4 by pipeline 2, the exhanst gas outlet 42 of sack cleaner 4 links to each other with muffler 6 one ends, the other end of muffler 6 links to each other with the inlet 91 at chimney 9 middle parts, chimney 9 middle parts are provided with blast pipe 8, the outer end of blast pipe 8 links to each other with accessory fan 7, be used in the cold flue gas suction chimney 9 with muffler 6, so that replenish stack draught as required, chimney 9 bottoms are provided with air inlet pipe 10, one end of air inlet pipe 10 places in the chimney 9, the other end is communicated with deduster 4 outlet flues 42, so that the cold flue gas after will administering is sent into chimney bottom, as Fig. 1, Fig. 2, Fig. 3.Its course of work is: the high-temperature flue gas that stove 1 produces 31 enters in the heat exchanger 3 from entering the mouth through pipeline 2, carry out heat exchange and after lowering the temperature in this cold flue gas through partition and chimney 9 bottoms, enter in the deduster 4 from outlet 34, pipeline 2, inlet 41, behind cloth bag filtration in deduster 4, the depositing dust, from outlet 42, muffler 6, enter in the chimney 9 from the inlet 91 on chimney top and the air inlet pipe 10 of bottom respectively, again by chimney 9 bottoms behind the hot-air energization that heat exchanger 3 swaps out, automatically emptying effectively cuts down the consumption of energy, power consumption.

Stove 1 links to each other with the inlet 51 of heat exchanger 5 by pipeline 2, heat exchanger 5 is a closing cylinder, be installed in chimney 9 outsides, the outlet 52 of heat exchanger 5 is communicated with the smoke inlet 41 of deduster 4, heat exchanger 5 walls are provided with insulating 53, be provided with flue 54 in the heat exchanger 5, the inlet 55 of flue 54 is communicated with the exhanst gas outlet 42 of deduster 4, the outlet 56 of flue 54 is communicated with chimney 9, chimney 9 middle parts are provided with blast pipe 8, and the outer end of blast pipe 8 links to each other with accessory fan 7, are used in the cold flue gas suction chimney 9 after administering, so that replenish stack draught as required, as Fig. 4.Its course of work is: the high-temperature flue gas that stove 1 produces 51 enters in the heat exchanger 5 from entering the mouth through pipeline 2, carry out heat exchange through the cold flue gas in partition and the flue 54 and after lowering the temperature at this, from outlet 52, pipeline 2, inlet 41 enters in the deduster 4, cloth bag filtration in deduster 4, behind the depositing dust, from outlet 42, pipeline 2,55 enter in the flue 54 through entering the mouth, after heating up with high-temperature flue gas heat exchange in the flue 54, enter chimney 9 emptyings through exporting 56, effectively cut down the consumption of energy, power consumption, flue gas after the improvement also can be as required through pipeline 2 through blower fan 7, blast pipe 8 enters in the chimney 9, is used to increase stack draught.

Claims

1, a kind of system for treating kiln waste gas without external energy comprises stove, chimney, treatment facility is characterized in that in the chimney or chimney is provided with heat exchanger outward, and the import of heat exchanger is communicated with the stove flue, outlet is communicated with the treatment facility smoke inlet, and the exhanst gas outlet of treatment facility is communicated with chimney again.

2, system for treating kiln waste gas without external energy according to claim 1, it is characterized in that described heat exchanger is an obturator, about obturator or front and back or upper and lower sides are provided with import and export, and be communicated with stove flue and treatment facility smoke inlet respectively by pipeline, be provided with upright or horizontal baffle in the obturator, the front and back of dividing plate or about or up and down both sides link to each other with the obturator inwall, remaining both sides in addition and obturator keep spacing, thereby form exhaust gases passes in the corresponding both sides of dividing plate.

3, system for treating kiln waste gas without external energy according to claim 1 is characterized in that described heat exchanger is made as cylinder or cuboid or gengon or polygon polyhedral body or polygon multiple edge body, is located at the bottom or the middle part of chimney.

4, system for treating kiln waste gas without external energy according to claim 1, it is characterized in that described heat exchanger is made as obturator, which is provided with import and export, and be communicated with stove flue and treatment facility smoke inlet respectively by pipeline, the sealing body wall is provided with insulating, be provided with flue in the obturator, the inlet of flue is communicated with the treatment facility exhanst gas outlet, and the outlet of flue is communicated with chimney.

5, system for treating kiln waste gas without external energy according to claim 1 is characterized in that described chimney middle and upper part is provided with the small-power accessory fan, and the air outlet of this blower fan extends in the chimney by pipeline.

6, system for treating kiln waste gas without external energy according to claim 1 is characterized in that described chimney bottom is provided with air inlet pipe, and an end of this air inlet pipe places in the chimney, and the other end is communicated with the treatment facility outlet flue.

7, system for treating kiln waste gas without external energy according to claim 1, it is characterized in that described treatment facility is a sack cleaner of the prior art, perhaps electric cleaner, perhaps screen collector, perhaps other deduster, or the packed bed of absorption gaseous contaminant, or other scrubbing dust falling device.

8, system for treating kiln waste gas without external energy according to claim 1 is characterized in that the exhanst gas outlet of described deduster links to each other by the inlet of pipeline with chimney bottom, middle part or top.