CN106111889B - A kind of high temperature regeneration Sand Cooling System and exhaust heat recovering method - Google Patents
A kind of high temperature regeneration Sand Cooling System and exhaust heat recovering method Download PDFInfo
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- CN106111889B CN106111889B CN201610789635.3A CN201610789635A CN106111889B CN 106111889 B CN106111889 B CN 106111889B CN 201610789635 A CN201610789635 A CN 201610789635A CN 106111889 B CN106111889 B CN 106111889B
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- high temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of high temperature regeneration Sand Cooling System and exhaust heat recovering methods, belong to sand casting technical field of structures, system includes perpendicular pot type just cooler, gravitational precipitator or cyclone dust collectors, flue gas type organic Rankine generating set and bag filter, just cooler includes housing and cooling device to the perpendicular pot type, and the cooling device includes air-supply bustle pipe and multiple heat exchange blowpipes.Method includes carrying out high temperature regeneration sand boiling fluidisation heat exchange by the fluosolids at top, high temperature regeneration sand through tentatively cooling down is dispersed into multiple cooling passages formed by heat exchange blowpipe, makees further heat exchange to high temperature regeneration sand by the cold air in blowpipe that exchanges heat in cooling passage.The present invention accelerates high temperature sand cooling velocity, simultaneously as air themperature is high after heat exchange, beneficial to raising waste heat recovery efficiency and reduces energy consumption by heat transfer and the synthesis type of cooling of fluid boiling.
Description
Technical field
The invention belongs to sand casting technical fields, and in particular to a kind of high temperature regeneration Sand Cooling System and waste heat recovery side
Method.
Background technology
China is castings production state maximum in the world.According to statistics：1 ton of antiquated sand will be discharged by often producing 1 ton of casting, simultaneously
Add in equivalent fresh sand.The domestic high-quality ore in sand form scarcity of resources of sand, the exhaustive exploitation of fresh sand cause huge harm natural resources.Cause
This, casting old-sand regeneration is that modernization casts indispensable component, wherein hot method sand regeneration technology is sent out for current main-stream
Open up direction.
Thermal reclamation technique mainly has middle low-temperature bake, high-temperature roasting two ways.At present, domestic thermal reclamation uses more
Middle low-temperature bake technique.Since the requirement of resin ignition temperature itself is low, the reclaimed sand after middle low-temperature bake can also meet production will
It asks.This roasting technique has many good qualities：1. calcination temperature is low, low energy consumption for natural gas or oil；2. reclaimed sand temperature is low after coming out of the stove,
Convenient for cooling；3. calcining furnace lining requires low, stove low cost.With the attention further that Environmental is protected, middle low temperature roasting
The some shortcomings burnt highlight.Resin is by thermal evaporation in old sand, and under middle cryogenic conditions, part resin is simultaneously imperfect combustion, from
And form VOC and fall directly with flue gas emission, cause environmental pollution.
In developed countries such as Britain, the U.S., old sand thermal reclamation technological temperature is required at least at 710 DEG C or more, is passed through
High-temperature roasting, the VOC given off in old sand could be disposed off completely.But the hot method sand regeneration technology of high-temperature roasting pushes away at home
Many problems are extensively faced, are mainly had：1. calcination temperature is high, burning consumption is high；2. reclaimed sand temperature of coming out of the stove is high, cooling difficulty；③
The waste heat recovery that thermal reclamation system generates is difficult；4. equipment manufacturing cost high expensive etc..Therefore, domestic most enterprise is generally reluctant
Receive the hot method sand regeneration technology of high-temperature roasting.
The content of the invention
In view of this, it is an object of the invention to provide cooling devices at the beginning of a kind of new perpendicular pot type high temperature regeneration sand and remaining
Heat recovery method takes the synthesis type of cooling of heat transfer and fluid boiling, accelerates sand cooling velocity, improves waste heat recovery efficiency,
To solve the problems, such as that high temperature sand cooling and waste heat recovery existing in the prior art are difficult.
In order to achieve the above objectives, an object of the present invention is achieved through the following technical solutions：
A kind of high temperature regeneration Sand Cooling System, cooler, gravitational dust collection at the beginning of the perpendicular pot type being connected including passing sequentially through pipeline
Device or cyclone dust collectors, flue gas type organic Rankine generating set and bag filter, just cooler includes housing to the perpendicular pot type
And cooling device, feed inlet and exhaust outlet are provided with above the housing, and lower section is provided with outlet valve, the feed inlet in housing
Lower section be provided with plate-like distributing device, the cooling device be included in the setting of housing outer bottom zone circular air-supply bustle pipe and with
The air-supply bustle pipe connection is arranged in multiple heat exchange blowpipes of longitudinal arrangement in housing, the cooler at the beginning of the perpendicular pot type
Bottom be provided with high pressure cooling blower, the high pressure cooling blower is connected with air-supply bustle pipe, the multiple heat exchange blowpipe
Positioned at the lower section of plate-like distributing device.
Further, the housing uses inside and outside layer as compound insulation structure that steel plate, interlayer are ceramic fibre.
Further, the multiple heat exchange blowpipe is length-adjustable telescoping tube.
Further, the multiple heat exchange blowpipe is equidistantly evenly distributed in housing, makes to form size one between each other
The cooling passage of cause.
Further, the hot air spout of the multiple heat exchange blowpipe is set obliquely.
The second object of the present invention is achieved through the following technical solutions：
The method that waste heat recovery is carried out using above-mentioned high temperature regeneration Sand Cooling System：High temperature regeneration sand is continuously entered from top
In cooler, high temperature regeneration sand just is carried out boiling fluidisation heat exchange by the fluosolids at top for perpendicular pot type, meanwhile, in plate-like distributing device
Under the action of, the high temperature regeneration sand through tentatively cooling down is dispersed into multiple cooling passages formed by heat exchange blowpipe,
Further heat exchange makees high temperature regeneration sand by the cold air in blowpipe that exchanges heat in cooling passage, treats that high temperature sand is cooled to
After within 300 DEG C, discharge via the outlet valve of cooler bottom at the beginning of perpendicular pot type.
The beneficial effects of the present invention are：
The present invention accelerates high temperature sand cooling velocity, simultaneously as changing by the synthesis type of cooling conducted heat with fluid boiling
Air themperature is high after heat, beneficial to raising waste heat recovery efficiency and reduces energy consumption.
Description of the drawings
Fig. 1 is the layout drawing of high temperature regeneration Sand Cooling System of the present invention；
Fig. 2 is the sectional view of the first cooler of perpendicular pot type.
Reference numeral：
1- pipelines；2- erects pot type just cooler；3- gravitational precipitators；4- flue gas type organic Rankine generating sets；5- cloth bags
Deduster；6- housings；7- cooling devices；8- feed inlets；9- exhaust outlets；10- outlet valves；11- plate-like distributing devices；12- air-supplies are enclosed
Pipe；13- heat exchange blowpipes；14- high pressure cooling blowers.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
As shown in Figure 1, a kind of high temperature regeneration Sand Cooling System of the present embodiment, including passing sequentially through, pipeline 1 is connected to be erected
The first cooler 2 of pot type, gravitational precipitator 3, flue gas type organic Rankine generating set 4 and bag filter 5 erect pot type just cooler
2 include housing 6 and cooling device 7, and the top of housing 6 is provided with feed inlet 8 and exhaust outlet 9, and lower section is provided with outlet valve 10,
Plate-like distributing device 11 is provided in housing 6 below feed inlet, cooling device 7 is included in the setting of housing outer bottom zone circular
Air-supply bustle pipe 12 and with air-supply bustle pipe 12 connect be arranged in housing in longitudinal arrangement multiple heat exchange blowpipes 13, in perpendicular tank
The bottom of the first cooler of formula is provided with high pressure cooling blower 14, and high pressure cooling blower 14 is connected with air-supply bustle pipe 12, multiple heat exchange
Blowpipe is located at the lower section of plate-like distributing device, and is equidistantly evenly distributed in housing, and it is consistent to make to be formed size between each other
Cool down passage, and channel reception and scattered high temperature regeneration sand is cooled down by cooling down.
As needed, gravitational precipitator 3 can also be changed to cyclone dust collectors.
As the improvement of the present embodiment, housing uses inside and outside layer as complex heat-preservation knot that steel plate, interlayer are ceramic fibre
Structure takes this compound insulation structure, and the heat that can not only reduce housing scatters and disappears, but also can mitigate abrasion of the sand to ceramic fibre,
Improve its service life.
As the improvement of the present embodiment, multiple heat exchange blowpipes are length-adjustable telescoping tube, such as take multistage knot
Structure is shaked out temperature by different length adjustments.
As the improvement of the present embodiment, the hot air spout of multiple heat exchange blowpipes is set obliquely, ensures whole process
Middle hot sand, which does not enter in blowpipe, to result in blockage.
In the present embodiment, exchange heat the effect of blowpipe：
1st, the heat exchange blowpipe of proper alignment plays heat exchanger, and cold air is passed with middle lower floor hot sand in pipe
Heat preheats air；
2nd, sprayed by the hot wind after the blowpipe preheating that exchanges heat in the sand apart from hot sand surface 500mm~800mm depths,
The fluosolids of certain altitude is formed at the cooler top at the beginning of perpendicular pot type, carries out boiling fluidisation heat exchange.Hot air spout is set obliquely,
Ensure that hot sand does not enter in blowpipe in whole process.
The method that waste heat recovery is carried out using above system：
High temperature (690 DEG C~715 DEG C of temperature range) reclaimed sand is continuously entered from top at the beginning of perpendicular pot type in cooler, by top
Fluosolids to high temperature regeneration sand carry out boiling fluidisation heat exchange, meanwhile, under the action of plate-like distributing device, the height through tentatively cooling down
Warm reclaimed sand is dispersed into multiple cooling passages formed by heat exchange blowpipe, passes through the air-supply branch that exchanges heat in cooling passage
Cold air in pipe makees high temperature regeneration sand further heat exchange, after high temperature sand is cooled within 300 DEG C, via cold at the beginning of perpendicular pot type
But the outlet valve discharging of device bottom.
Cold process at the beginning of entire hot sand, hot sand have passed through fluosolids, heat transfer layer twice with air heat-exchange, and cooling velocity is fast, cold
The hot blast temperature that hot sand generates is about 400 DEG C, is discharged by the exhaust outlet on primary cooler top, into ORC power generator.Have
Advantages below：
(1) the hot method sand regeneration technology of high-temperature roasting is applicable in, the high temperature regeneration sand of fresh baked can be cooled to by 700 DEG C or so
Less than 300 DEG C.
(2) using the synthesis type of cooling of heat transfer and fluosolids boiling, sand cooling velocity is fast, and air themperature is high after heat exchange.
(3) tank cooling device liner fibrous material is erected, outside wall temperature is low, and radiation loss is few.
(4) generate electricity to the high temperature air UTILIZATION OF VESIDUAL HEAT IN organic Rankine cycle devices that high temperature sand swaps out, improve hot method
Regenerative system waste heat recovery rate, reduces energy consumption.
(5) high temperature air is cooled down using power generator, reduces the air quantity of dedusting fan, reduce wind turbine electricity
Consumption.
(6) 10 yuan/ton of low heat method sand regeneration cost can drop, equipment investment cost is low, in 2 years recoverable fully invested into
This.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (4)
1. a kind of high temperature regeneration Sand Cooling System, it is characterised in that：Cooler at the beginning of the perpendicular pot type being connected including passing sequentially through pipeline,
Gravitational precipitator or cyclone dust collectors, flue gas type organic Rankine generating set and bag filter, the first cooler of the perpendicular pot type
Including housing and cooling device, feed inlet and exhaust outlet are provided with above the housing, lower section is provided with outlet valve, in housing
Plate-like distributing device is provided with below interior feed inlet, the cooling device is included in the air-supply of housing outer bottom zone circular setting
Bustle pipe and with it is described air-supply bustle pipe connect be arranged in housing in longitudinal arrangement multiple heat exchange blowpipes, in the perpendicular pot type
The bottom of first cooler is provided with high pressure cooling blower, and the high pressure cooling blower is connected with air-supply bustle pipe, the multiple heat exchange
Blowpipe is located at the lower section of plate-like distributing device；It for steel plate, interlayer is the compound of ceramic fibre that the housing, which uses inside and outside layer,
Insulation construction；The multiple heat exchange blowpipe is length-adjustable telescoping tube.
2. high temperature regeneration Sand Cooling System according to claim 1, it is characterised in that：The multiple heat exchange blowpipe etc.
Away from being evenly distributed in housing, make to form the consistent cooling passage of size between each other.
3. high temperature regeneration Sand Cooling System according to claim 1, it is characterised in that：The multiple heat exchange blowpipe
Hot air spout is set obliquely.
4. the method that any high temperature regeneration Sand Cooling Systems of usage right requirement 1-3 carry out waste heat recovery, feature exist
In：High temperature regeneration sand is continuously entered from top at the beginning of perpendicular pot type in cooler, and high temperature regeneration sand is boiled by the fluosolids at top
Fluidisation heat exchange is risen, meanwhile, under the action of plate-like distributing device, the high temperature regeneration sand through tentatively cooling down is dispersed into multiple by exchanging heat
In the cooling passage that blowpipe is formed, high temperature regeneration sand is made by the cold air in blowpipe that exchanges heat in cooling passage
Further heat exchange after high temperature sand is cooled within 300 DEG C, discharges via the outlet valve of cooler bottom at the beginning of perpendicular pot type.
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| CN201610789635.3A CN106111889B (en) | 2016-08-31 | 2016-08-31 | A kind of high temperature regeneration Sand Cooling System and exhaust heat recovering method |
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| CN201610789635.3A CN106111889B (en) | 2016-08-31 | 2016-08-31 | A kind of high temperature regeneration Sand Cooling System and exhaust heat recovering method |
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| CN106111889A CN106111889A (en) | 2016-11-16 |
| CN106111889B true CN106111889B (en) | 2018-05-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106825395B (en) * | 2017-04-25 | 2018-12-21 | 重庆钢铁(集团)有限责任公司 | Cavityless casting molding sand sequencing batch type circulating cooling processing method |
| CN106825396B (en) * | 2017-04-25 | 2019-01-25 | 重庆钢铁(集团)有限责任公司 | Casting sand cooling means |
| CN107377871A (en) * | 2017-08-09 | 2017-11-24 | 夏邑县瑞鑫汽配科技有限公司 | A kind of molding sand cooling device |
| CN108723289A (en) * | 2018-08-20 | 2018-11-02 | 青岛百川通达机械有限公司 | A kind of hot method demoulding regenerating furnace, which unloads to shake out, continues to keep the temperature after baking gradually cooling device |
| CN111842778B (en) * | 2020-07-13 | 2021-11-30 | 太原理工大学 | Regeneration method of waste foundry sand |
| CN113457342B (en) * | 2021-07-01 | 2022-09-06 | 安徽燃博智能科技有限公司 | Waste gas treatment device for hot blast stove |
| CN114042860B (en) * | 2021-11-29 | 2024-02-09 | 金耐源(河南)工业科技有限公司 | Low-emission environment-friendly casting mold material recycling process |
| CN115156479B (en) * | 2022-06-27 | 2023-08-11 | 马鞍山海森控电气有限公司 | Used sand electromagnetic induction heating thermal method regenerator for foundry |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203454809U (en) * | 2013-09-05 | 2014-02-26 | 彭志坚 | Cylindrical cooling device for thermal-state mineral blocky-shaped particles |
| JP5569117B2 (en) * | 2010-04-16 | 2014-08-13 | 新東工業株式会社 | Foundry sand cooling device and foundry sand recovery processing equipment |
| CN105021049A (en) * | 2015-07-27 | 2015-11-04 | 宝鸡市晋旺达机械设备有限公司 | Vertical cooling tower and sintering waste heat comprehensive utilization system |
| CN105478662A (en) * | 2016-01-08 | 2016-04-13 | 山东金璞新材料有限公司 | Energy saving type air pipe cooling type casting sand rapid roasting and regenerating system |
| CN105627755A (en) * | 2016-03-16 | 2016-06-01 | 天津天丰钢铁有限公司 | System used for sinter ore cooling and sensible heat efficient recycling |
| CN205996111U (en) * | 2016-08-31 | 2017-03-08 | 中机中联工程有限公司 | A kind of new type high temperature regenerates Sand Cooling System |
-
2016
- 2016-08-31 CN CN201610789635.3A patent/CN106111889B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5569117B2 (en) * | 2010-04-16 | 2014-08-13 | 新東工業株式会社 | Foundry sand cooling device and foundry sand recovery processing equipment |
| CN203454809U (en) * | 2013-09-05 | 2014-02-26 | 彭志坚 | Cylindrical cooling device for thermal-state mineral blocky-shaped particles |
| CN105021049A (en) * | 2015-07-27 | 2015-11-04 | 宝鸡市晋旺达机械设备有限公司 | Vertical cooling tower and sintering waste heat comprehensive utilization system |
| CN105478662A (en) * | 2016-01-08 | 2016-04-13 | 山东金璞新材料有限公司 | Energy saving type air pipe cooling type casting sand rapid roasting and regenerating system |
| CN105627755A (en) * | 2016-03-16 | 2016-06-01 | 天津天丰钢铁有限公司 | System used for sinter ore cooling and sensible heat efficient recycling |
| CN205996111U (en) * | 2016-08-31 | 2017-03-08 | 中机中联工程有限公司 | A kind of new type high temperature regenerates Sand Cooling System |
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