CN105444584A - Slag waste heat recycling device - Google Patents
Slag waste heat recycling device Download PDFInfo
- Publication number
- CN105444584A CN105444584A CN201510977268.5A CN201510977268A CN105444584A CN 105444584 A CN105444584 A CN 105444584A CN 201510977268 A CN201510977268 A CN 201510977268A CN 105444584 A CN105444584 A CN 105444584A
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- Prior art keywords
- thermal conductive
- conductive network
- afterheat
- boiler
- recycle device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a slag waste heat recycling device. The slag waste heat recycling device comprises a machine body, a cold water tank and a hot water tank, wherein the cold water tank and the hot water tank are arranged inside the machine body; a slag conveying passage is arranged at the lower part of the machine body; the hot water tank is arranged above the slag conveying passage; the cold water tank is arranged above the hot water tank; the device also comprises a heat conducting net which is arranged between the slag conveying passage and the hot water tank; the heat conducting net is provided with a heat conducting net water charging pipe and a heat conducting net water discharging pipe; the heat conducting net is connected with the cold water tank via the heat conducting net water charging pipe and is connected with the hot water tank via the heat conducting net water discharging pipe. The slag waste heat recycling device disclosed by the invention is high in utilization efficiency of slag waste heat, simple in structure, convenient to operate and maintain, high in adaptability, good in economical efficiency and low in pollution.
Description
Technical field
The invention belongs to waste heat recovery utilizing equipment field, particularly relate to a kind of afterheat of slags recycle device.
Background technology
Various industrial furnace equipment produces a large amount of slags in process of production, and these slags are often attended by a large amount of waste heats, and have technical data to calculate display, this part of waste heat resource accounts for more than 17% of its Fuel Consumption, and visible afterheat of slags utilizes exists tremendous potential.The utilization of afterheat of slags both can reduce the energy consumption of unit product, can reduce environmental pollution again, and therefore, the UTILIZATION OF VESIDUAL HEAT IN of slag has considerable economic benefit and social benefit.And the existing device being used for that afterheat of slags is recycled, utilization ratio is very low, and especially low heat value afterheat of slags utilization ratio is lower, and the amount of heat carried in slag is all wasted, and directly causes thermal pollution to environment.In addition, existing afterheat of slags utilizes device, is not used for the structural design controlled equipment specially, causes the using state be difficult to equipment to control, does not reach the object making full use of afterheat of slags.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides the afterheat of slags recycle device that a kind of afterheat of slags utilization ratio is high, alleviate slag thermal pollution.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of afterheat of slags recycle device, comprise body, be arranged on the cold water storage cistern of internal body, boiler and slag transfer passage, described slag transfer passage is located under described boiler, described cold water storage cistern is located on described boiler, also comprise thermal conductive network, described thermal conductive network is located between slag transfer passage and boiler, described thermal conductive network is provided with thermal conductive network water inlet pipe and thermal conductive network outlet pipe, described thermal conductive network is connected with described cold water storage cistern by thermal conductive network water inlet pipe, and described thermal conductive network is connected with described boiler by thermal conductive network outlet pipe.
Further improvement as technique scheme:
Described thermal conductive network is the wave-fin pipe that single or multiple lift serial connection is communicated with.
The volume of described cold water storage cistern is greater than the volume of described boiler.
The throughput direction of described slag transfer passage is contrary with water (flow) direction in described thermal conductive network.
Described body is provided with air inlet near the side of thermal conductive network outlet pipe, and described air inlet is provided with air blast, and described body is provided with exhaust outlet near the side of thermal conductive network water inlet pipe.
Described air inlet is also provided with air intake baffle door.
The exit position of described exhaust outlet is provided with dust arrester.
Temperature sensor is provided with in described boiler.
Described afterheat of slags recycle device also comprises heat-exchanger pump, the entrance of described heat-exchanger pump is connected with the hot water outlet of described boiler, described hot water delivery side of pump is connected with the thermal conductive network water inlet pipe of described thermal conductive network by a recirculation pipe, and described recirculation conduit is provided with electric control valve.
Described cold water storage cistern is provided with level display device.
Described afterheat of slags recycle device also comprises control cabinet, controller and control panel is provided with in described control cabinet, described temperature sensor and level display device are all connected with the input of described controller, and described heat-exchanger pump, air blast are all connected with the output of described controller with described control panel.
Compared with prior art, the invention has the advantages that:
1, afterheat of slags recycle device of the present invention, cold water storage cistern is located on boiler, thermal conductive network is provided with between slag transfer passage and boiler, the thermal conductive network water inlet pipe of thermal conductive network is connected with cold water storage cistern, thermal conductive network outlet pipe is connected with boiler, by setting and the increase thermal conductive network of hot and cold water tank's difference in height, cold water flows out from cold water storage cistern, thermal conductive network is flowed through with certain flow velocity, become hot water after heating up with slag heat exchange and inject boiler, this device afterheat of slags utilization ratio is high and structure simple, is especially suitable for the waste heat recovery of low heat value industrial slags.
2, thermal conductive network of the present invention is the wave-fin pipe that single or multiple lift serial connection is communicated with, and this structure can increase the less turbulence of heat exchange area to air and pipe outer air, improves heat transfer effect, increases the utilization of waste heat.
3, cold water storage cistern of the present invention is arranged in directly over boiler, and the volume of cold water storage cistern is greater than the volume of boiler, and cold water storage cistern volume is to be not less than the twice of boiler volume for the best, to ensure that the water in cold water storage cistern unimpededly enters boiler under field conditions (factors).
4, afterheat of slags recycle device of the present invention, the throughput direction of slag transfer passage is contrary with water (flow) direction in thermal conductive network, namely the top of thermal conductive network heat exchange be the end of conveying device, namely the end of thermal conductive network heat exchange is the top of conveying device, such counter-flow arrangement makes the cold water in heat conduction webmaster evenly progressively be heated, to increase heat transfer effect.
5, afterheat of slags recycle device of the present invention, body air inlet is provided with air blast, by the heat exchange space conveying air of air blast toward body, utilize air to be taken in the grid of thermal conductive network by the heat of slag and carry out heat exchange, both can increase heat transfer effect, each heating surface thermally equivalent can be guaranteed again.
In addition, body air inlet is also provided with air intake baffle door, can according to the situation of change of the lifting of boiler water temperature and slag thermal source, the wind speed and the air quantity that enter heat exchange space is controlled by regulating the wind speed of air blast and the aperture of air intake baffle door, and then adjustment heat transfer effect, regulating action is played to water temperature in boiler.Body exhaust outlet is provided with dust arrester, prevents the dust in slag from directly discharging thus contaminated environment.
6, afterheat of slags recycle device of the present invention, also comprises heat-exchanger pump, and the entrance of heat-exchanger pump is connected with the hot water outlet of boiler, and hot water delivery side of pump is connected with the water inlet pipe of thermal conductive network by a recirculation pipe.Recirculation conduit is provided with electric control valve, can carrys out by the aperture of control valve the temperature that control pump goes out saliva.Be configured with temperature sensor in boiler, Real-Time Monitoring can be carried out to water temperature.If in the starting stage of plant running, water temperature in boiler does not also reach requirement, now need to arrange the operation of heat-exchanger pump, valve closing on delivery side of pump pipeline, motor regulated valve on pump recirculation conduit is opened, and carries out egr mode operation, and this part hot water again enters into thermal conductive network entrance and proceeds heat exchange intensification, finally get back in boiler again, until water temperature reaches preset value.After device normally runs, hot water can be transported to each distributing point, for user by heat-exchanger pump.
In a word, afterheat of slags recycle device of the present invention, afterheat of slags utilization ratio is high, and structure is simple, operation, easy to maintenance, and strong adaptability, good economy performance, pollutes low, is especially suitable for the waste heat recovery of low heat value industrial slags.
Accompanying drawing explanation
Fig. 1 is the structural representation of afterheat of slags recycle device of the present invention.
Fig. 2 is the plan structure schematic diagram of thermal conductive network in the present invention.
Detailed description of the invention
Marginal data:
1, body; 2, control cabinet; 3, control panel; 4, controller; 5, heat-exchanger pump; 6, air intake baffle door; 7, air blast; 8, cold water storage cistern; 9, thermal conductive network; 10, slag conveying device; 11, temperature sensor; 12, hot water outlet; 13, water pipe head; 14, water pipe pneumostome; 15, level display device; 16, exhaust outlet; 17, thermal conductive network water inlet pipe; 18, filling pipe; 19, thermal conductive network outlet pipe; 20, dust arrester; 21, boiler; 22, slag conveying cover; 23, recirculation pipe interface; 24, electric control valve.
Below in conjunction with Figure of description and concrete preferred embodiment, the invention will be further described, but protection domain not thereby limiting the invention.
Embodiment 1:
As illustrated in fig. 1 and 2, for the afterheat of slags recycle device of the present embodiment, comprise body 1, be arranged on cold water storage cistern 8 and the boiler 21 of body 1 inside, the bottom of body 1 is provided with slag transfer passage, boiler 21 is located on slag transfer passage, cold water storage cistern 8 is located on boiler 21, also comprise thermal conductive network 9, thermal conductive network 9 is located between slag transfer passage and boiler 21, thermal conductive network 9 is provided with thermal conductive network water inlet pipe 17 and thermal conductive network outlet pipe 19, thermal conductive network 9 is connected with cold water storage cistern 8 by thermal conductive network water inlet pipe 17, thermal conductive network 9 is connected with boiler 21 by thermal conductive network outlet pipe 19.By setting and the increase thermal conductive network of hot and cold water tank's difference in height, cold water flows out from cold water storage cistern, thermal conductive network is flowed through with certain flow velocity, become hot water after heating up with slag heat exchange and inject boiler, this device afterheat of slags utilization ratio is high and structure simple, is especially suitable for the waste heat recovery of low heat value industrial slags.
In the present embodiment, the wave-fin pipe that described thermal conductive network 9 is communicated with for single or multiple lift serial connection.This structure can increase the less turbulence of heat exchange area to air and pipe outer air, improves heat transfer effect, increases the utilization of waste heat.
In the present embodiment, the volume of cold water storage cistern 8 is greater than the volume of boiler 21.The volume of cold water storage cistern 8 to be not less than the twice of the volume of boiler 21 for the best, to ensure that the water in cold water storage cistern unimpededly enters boiler under field conditions (factors).
In the present embodiment, the throughput direction of slag transfer passage is contrary with water (flow) direction in thermal conductive network 9, to increase heat transfer effect.Namely the top of thermal conductive network heat exchange be the end of conveying device, and namely the end of thermal conductive network heat exchange is the top of conveying device, and such counter-flow arrangement makes the cold water in heat conduction webmaster evenly progressively be heated, to increase heat transfer effect.
In the present embodiment, body 1 is provided with air inlet near the side of thermal conductive network outlet pipe 19, and air inlet is provided with air blast 7, and body 1 is provided with exhaust outlet 16 near the side of thermal conductive network water inlet pipe 17.By the heat exchange space conveying air of air blast 7 toward body 1, utilize air to be taken in the grid of thermal conductive network 9 by the heat of slag and carry out heat exchange, both can increase heat transfer effect, each heating surface thermally equivalent can be guaranteed again.
In the present embodiment, air inlet is also provided with air intake baffle door 6.Can according to the situation of change of the lifting of boiler 21 water temperature and slag thermal source, the wind speed and the air quantity that enter heat exchange space is controlled by regulating the wind speed of air blast 7 and the aperture of air intake baffle door 6, and then adjustment heat transfer effect, regulating action is played to water temperature in boiler 21.
In the present embodiment, the exit position of exhaust outlet 16 is provided with dust arrester 20.Can prevent the dust in slag from directly discharging thus contaminated environment.
In the present embodiment, in boiler 21, be provided with temperature sensor 11, for detecting the hot water temperature in described boiler 21.
In the present embodiment, afterheat of slags recycle device also comprises heat-exchanger pump 5, and the entrance of heat-exchanger pump 5 is connected with the hot water outlet 12 of boiler 21, and the outlet of heat-exchanger pump 5 is connected with the thermal conductive network water inlet pipe 17 of thermal conductive network 9 by a recirculation pipe.Thermal conductive network water inlet pipe 17 is provided with recirculation pipe interface 23, and namely recirculation pipe is connected with recirculation pipe interface 23.If the water temperature in boiler does not reach requirement, can arrange the operation of heat-exchanger pump, valve closing on delivery side of pump pipeline, valve open on pump recirculation conduit, carry out egr mode operation, this part hot water again enters into thermal conductive network 9 and proceeds heat exchange intensification, finally gets back to again in boiler 21, until water temperature reaches preset value.After device normally runs, the external carrier pipe of water pipe head 13 that can be exported by heat-exchanger pump 5, by delivery to each distributing point, for user.
In the present embodiment, cold water storage cistern 8 is provided with level display device 15, for monitoring the cold water water level in cold water storage cistern; Cold water storage cistern 8 is also provided with filling pipe 18 and water pipe pneumostome 14, wherein the Main Function of water pipe pneumostome 14 maintains the air pressure balance in cold water storage cistern, be unlikely to produce vacuum above cold water storage cistern inside, avoid water outlet bottom cold water storage cistern not smooth, filling pipe 18 is external water source point.
In the present embodiment, afterheat of slags recycle device also comprises control cabinet 2, controller 4 and control panel 3 is provided with in control cabinet 2, temperature sensor 11 is all connected with the input of controller 4 with level display device 15, and heat-exchanger pump 5, air blast 7 are all connected with the output of controller 4 with control panel 3.Can various parameter be set on the control panel, realizes automatic detection and the adjustment of water temperature, air quantity wind speed etc., easy to operate, safeguard simple, can be widely used in all types of industries type of furnace of low heat value dry ash extraction, be worth of widely use.
The operation principle of the present embodiment is: cold water storage cistern 8 is by filling pipe 18 external water source moisturizing, switch and the high water tank Altitude control of external water compensating valve are chain, after cold water storage cistern 8 water level reach a certain height, the valve that cold water enters thermal conductive network 9 is opened gradually, and cold water enters thermal conductive network 9.Slag out exports slag conveying device 10 to afterwards from industrial furnace tail end deslagging, slag conveying device 10 is in the process of the slag transfer passage through this device, the slag entered in the cold water of thermal conductive network 9 and slag conveying device 10 carries out heat convection, enters into boiler 21 finally by thermal conductive network 9 outlet.In boiler 21, the temperature sensor 11 of configuration can carry out Real-Time Monitoring to water temperature, if in the starting stage of plant running, water temperature in boiler 21 does not also reach requirement, now then the operation of heat-exchanger pump 5 is arranged, valve closing on delivery side of pump pipeline, motor regulated valve 24 on pump recirculation conduit is opened, carry out egr mode operation, this part hot water again enters into thermal conductive network 9 by recirculation pipe and proceeds heat exchange intensification, finally get back to again in boiler 21, until water temperature reaches preset value.After device normally runs, hot water can be transported to each distributing point, for user by heat-exchanger pump 5.In plant running process, can according to the situation of change of the lifting of boiler 21 water temperature and slag thermal source, the wind speed and the air quantity that enter heat exchange space is controlled by regulating the wind speed of air blast 7 and the aperture of air intake baffle door 6, and then adjustment heat transfer effect, regulating action is played to water temperature in boiler 21.
The present invention can be arranged in the appropriate location between industrial furnace tail end slag-drip opening to slag storehouse, slag conveying device 10 carries the slag that industrial furnace tail end is discharged, enter from the entrance of the slag transfer passage of this device, after cold water in thermal conductive network 9 and slag carry out heat exchange, the slag completing heat exchange from the outlet of slag transfer passage out, is then delivered to slag storehouse or slag field by slag conveying device 10.The present invention can adapt to various different slag conveying device 10, the porch of slag transfer passage and exit are equipped with slag conveying cover 22, slag conveying cover 22 connects with the outer wall of body 1, slag conveying cover 22 is provided with sealing device with the overlapping part of body, prevents slag ash to emerge contaminated environment from lap gap.The entrance and exit size of slag transfer passage can adjust according to the concrete size of the slagging device of the different type of furnace.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment.All technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It is noted that for those skilled in the art, improvements and modifications under the premise without departing from the principles of the invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an afterheat of slags recycle device, comprise body (1), be arranged on the cold water storage cistern (8) that body (1) is inner, boiler (21) and slag transfer passage, it is characterized in that, described slag transfer passage is located under described boiler (21), described cold water storage cistern (8) is located on described boiler (21), also comprise thermal conductive network (9), described thermal conductive network (9) is located between slag transfer passage and boiler (21), described thermal conductive network (9) is provided with thermal conductive network water inlet pipe (17) and thermal conductive network outlet pipe (19), described thermal conductive network (9) is connected with described cold water storage cistern (8) by thermal conductive network water inlet pipe (17), described thermal conductive network (9) is connected with described boiler (21) by thermal conductive network outlet pipe (19).
2. afterheat of slags recycle device according to claim 1, is characterized in that, the wave-fin pipe that described thermal conductive network (9) is communicated with for single or multiple lift serial connection.
3. afterheat of slags recycle device according to claim 2, is characterized in that, the volume of described cold water storage cistern (8) is greater than the volume of described boiler (21).
4. afterheat of slags recycle device according to claim 3, is characterized in that, the throughput direction of described slag transfer passage is contrary with water (flow) direction in described thermal conductive network (9).
5. afterheat of slags recycle device according to claim 4, it is characterized in that, described body (1) is provided with air inlet near the side of thermal conductive network outlet pipe (19), described air inlet is provided with air blast (7), and described body (1) is provided with exhaust outlet (16) near the side of thermal conductive network water inlet pipe (17).
6. afterheat of slags recycle device according to claim 5, is characterized in that, described air inlet is also provided with air intake baffle door (6).
7. afterheat of slags recycle device according to claim 6, is characterized in that, the exit position of described exhaust outlet (16) is provided with dust arrester (20).
8. the afterheat of slags recycle device according to any one of claim 1 ~ 7, is characterized in that, is provided with temperature sensor (11) in described boiler (21).
9. afterheat of slags recycle device according to claim 8, it is characterized in that, described afterheat of slags recycle device also comprises heat-exchanger pump (5), the entrance of described heat-exchanger pump (5) is connected with the hot water outlet (12) of described boiler (21), the outlet of described heat-exchanger pump (5) is connected with the thermal conductive network water inlet pipe (17) of described thermal conductive network (9) by a recirculation pipe, and described recirculation conduit is provided with electric control valve (24).
10. afterheat of slags recycle device according to claim 9, is characterized in that, described cold water storage cistern (8) is provided with level display device (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977268.5A CN105444584B (en) | 2015-12-23 | 2015-12-23 | Afterheat of slags recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977268.5A CN105444584B (en) | 2015-12-23 | 2015-12-23 | Afterheat of slags recycle device |
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| CN105444584A true CN105444584A (en) | 2016-03-30 |
| CN105444584B CN105444584B (en) | 2017-07-25 |
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| CN201510977268.5A Active CN105444584B (en) | 2015-12-23 | 2015-12-23 | Afterheat of slags recycle device |
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| CN201443770U (en) * | 2009-06-22 | 2010-04-28 | 鞍钢集团房产物业公司 | Waste heat recycling device for boiler |
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| CN203116047U (en) * | 2013-01-28 | 2013-08-07 | 长沙高新开发区大沅能源科技有限公司 | Water-feeding slag cooling system for efficient heat recycling boiler |
| CN204372948U (en) * | 2015-01-04 | 2015-06-03 | 上海福盼环保节能科技有限公司 | A kind of afterheat of slags recycle device |
| CN205262229U (en) * | 2015-12-23 | 2016-05-25 | 中国水利水电第八工程局有限公司 | Slag afterheat recycling device |
-
2015
- 2015-12-23 CN CN201510977268.5A patent/CN105444584B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007064498A (en) * | 2005-08-29 | 2007-03-15 | Babcock Hitachi Kk | Combustion melting furnace |
| CN101055085A (en) * | 2007-05-24 | 2007-10-17 | 张世洪 | Low pressure cooling system of cylinder type cold slag machine |
| CN201443770U (en) * | 2009-06-22 | 2010-04-28 | 鞍钢集团房产物业公司 | Waste heat recycling device for boiler |
| CN102331192A (en) * | 2011-08-29 | 2012-01-25 | 圣火科技(河南)有限责任公司 | Power generating device using waste heat of high temperature liquid material |
| CN203116047U (en) * | 2013-01-28 | 2013-08-07 | 长沙高新开发区大沅能源科技有限公司 | Water-feeding slag cooling system for efficient heat recycling boiler |
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| CN105444584B (en) | 2017-07-25 |
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