CN205996111U - A kind of new type high temperature regenerates Sand Cooling System - Google Patents
A kind of new type high temperature regenerates Sand Cooling System Download PDFInfo
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- CN205996111U CN205996111U CN201621019798.5U CN201621019798U CN205996111U CN 205996111 U CN205996111 U CN 205996111U CN 201621019798 U CN201621019798 U CN 201621019798U CN 205996111 U CN205996111 U CN 205996111U
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- high temperature
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Abstract
The utility model discloses a kind of new type high temperature regenerates Sand Cooling System, belong to sand casting technical field of structures, system includes perpendicular pot type just cooler, gravitational precipitator or cyclone dust extractor, flue gas type organic Rankine generating set and sack cleaner, just cooler includes housing and chiller to described perpendicular pot type, and described chiller includes blow bustle pipe and multiple heat exchange blowpipe.This utility model, by the comprehensive type of cooling of heat transfer and fluid boiling, accelerates high temperature sand rate of cooling, simultaneously as air themperature is high after heat exchange, beneficial to raising waste heat recovery efficiency and reducing energy consumption.
Description
Technical field
This utility model belongs to sand casting technical field and in particular to a kind of new type high temperature regenerates Sand Cooling System.
Background technology
China is castings production state maximum in the world.According to statistics：Often produce 1 ton of foundry goods and will discharge 1 ton of antiquated sand, will simultaneously
Add equivalent fresh sand.Sand domestic high-quality ore in sand form scarcity of resources, the exhaustive exploitation of fresh sand has caused huge injury to natural resourcess.Cause
This, casting old-sand regeneration is that modernization casts indispensable ingredient, and wherein full-boiled process sand regeneration technology is sent out for current main-stream
Exhibition direction.
Thermal reclamation technique mainly has middle low-temperature bake, high-temperature roasting two ways.At present, adopt domestic thermal reclamation more
Middle low-temperature bake technique.Because the requirement of resin ignition temperature itself is low, the reclaimed sand after middle low-temperature bake also can meet production will
Ask.This roasting technique has many good qualities：1. sintering temperature is low, and natural gas or oily energy consumption are low；2. after coming out of the stove, reclaimed sand temperature is low,
It is easy to cool down；3. calcining furnace lining requires low, stove low cost.With the attention further of Environmental protection, middle low temperature roasting
The some shortcomings burnt highlight.In old sand, resin is subject to thermal evaporation, and under middle cryogenic conditions, part resin is simultaneously imperfect combustion, from
And form VOC and fall directly with fume emission, cause environmental pollution.
In developed countries such as Britain, the U.S., old sand thermal reclamation technological temperature requires at least more than 710 DEG C, passes through
High-temperature roasting, the VOC giving off in old sand could be disposed off completely.But the full-boiled process sand regeneration technology of high-temperature roasting pushes away at home
Extensively face a lot of problems, mainly have：1. sintering temperature is high, and burning consumes high；2. reclaimed sand temperature of coming out of the stove is high, cooling difficulty；③
The waste heat recovery that thermal reclamation system produces is difficult；4. equipment manufacturing cost high expensive etc..Therefore, domestic most enterprise is typically reluctant
Accept the full-boiled process sand regeneration technology of high-temperature roasting.
Utility model content
In view of this, the purpose of this utility model is to provide and cools down dress at the beginning of a kind of new perpendicular pot type high temperature regeneration sand
Put, take heat transfer and the comprehensive type of cooling of fluid boiling, accelerate sand rate of cooling, improve waste heat recovery efficiency, existing to solve
High temperature sand cooling with the presence of technology and the problem of waste heat recovery difficulty.
For reaching above-mentioned purpose, the purpose of this utility model is achieved through the following technical solutions：
A kind of new type high temperature regenerates Sand Cooling System, cooler, gravity at the beginning of the perpendicular pot type connected including passing sequentially through pipeline
Cleaner unit or cyclone dust extractor, flue gas type organic Rankine generating set and sack cleaner, just cooler includes described perpendicular pot type
Housing and chiller, the top of described housing is provided with charging aperture and exhaust outlet, and lower section is provided with outlet valve, enters in housing
The lower section of material mouth is provided with plate-like distributing device, and described chiller includes the air-supply bustle pipe in the setting of housing outer bottom zone circular
And connect with described air-supply bustle pipe be arranged in housing be in longitudinal arrangement multiple heat exchange blowpipes, cold at the beginning of the described perpendicular pot type
But the bottom of device is provided with high pressure cooling blower, and described high pressure cooling blower is connected with air-supply bustle pipe, the plurality of heat exchange air-supply
Arm is located at the lower section of plate-like distributing device.
Further, described housing adopts inside and outside layer is steel plate, intermediate layer is the compound insulation structure of ceramic fibre.
Further, the plurality of heat exchange blowpipe is length-adjustable telescoping tube.
Further, the plurality of heat exchange blowpipe is equidistantly evenly distributed in housing, makes to form size one each other
The cooling passage causing.
Further, the hot air spout of the plurality of heat exchange blowpipe is arranged obliquely.
The beneficial effects of the utility model are：
This utility model passes through heat transfer and the comprehensive type of cooling of fluid boiling, accelerates high temperature sand rate of cooling, meanwhile, by
After heat exchange, air themperature is high, beneficial to raising waste heat recovery efficiency and reducing energy consumption.
Brief description
Fig. 1 regenerates the layout drawing of Sand Cooling System for this utility model new type high temperature；
Fig. 2 is the sectional view of the first cooler of perpendicular pot type.
Reference：
1- pipeline；2- erects pot type just cooler；3- gravitational precipitator；4- flue gas type organic Rankine generating set；5- cloth bag
Cleaner unit；6- housing；7- chiller；8- charging aperture；9- exhaust outlet；10- outlet valve；11- plate-like distributing device；12- air-supply is enclosed
Pipe；13- heat exchange blowpipe；14- high pressure cooling blower.
Specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in figure 1, a kind of new type high temperature regeneration Sand Cooling System of the present embodiment, it is connected including passing sequentially through pipeline 1
Perpendicular pot type just cooler 2, gravitational precipitator 3, flue gas type organic Rankine generating set 4 and sack cleaner 5, perpendicular pot type is just cold
But device 2 includes housing 6 and chiller 7, and the top of housing 6 is provided with charging aperture 8 and exhaust outlet 9, and lower section is provided with outlet valve
10, in housing 6, the lower section of charging aperture is provided with plate-like distributing device 11, and chiller 7 is included in housing outer bottom zone circular
Setting 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,
The bottom of the first cooler of perpendicular pot type is provided with high pressure cooling blower 14, high pressure cooling blower 14 is connected with air-supply bustle pipe 12, many
Individual heat exchange blowpipe is located at the lower section of plate-like distributing device, and is equidistantly evenly distributed in housing, makes to be formed each other size
Consistent cooling passage, by the channel reception cool down scattered high temperature regeneration sand of lowering the temperature.
As needed, gravitational precipitator 3 can also be changed to cyclone dust extractor.
As the improvement of the present embodiment, the complex heat-preservation knot that it is steel plate that housing adopts inside and outside layer, intermediate layer is ceramic fibre
Structure, takes this compound insulation structure, and the heat that both can reduce housing scatters and disappears, and can mitigate the abrasion to ceramic fibre for the sand again,
Improve its service life.
As the improvement of the present embodiment, multiple heat exchange blowpipes are length-adjustable telescoping tube, such as take multistage to tie
Structure, is shaked out temperature by different length adjustment.
As the improvement of the present embodiment, the hot air spout of multiple heat exchange blowpipes arranges obliquely it is ensured that whole process
Middle hot sand does not enter in blowpipe and results in blockage.
In the present embodiment, the effect of heat exchange blowpipe：
1st, the heat exchange blowpipe of proper alignment plays the effect of heat exchanger, and in pipe, hot sand is passed cold air with middle lower floor
Heat, preheats to air；
2nd, the hot blast after the preheating of heat exchange blowpipe sprays in the sand deep apart from hot sand surface 500mm～800mm,
In the fluosolids of perpendicular pot type just cooler top formation certain altitude, carry out boiling fluidisation heat exchange.Hot air spout is arranged obliquely,
Ensure that in whole process, hot sand does not enter in blowpipe.
The method carrying out waste heat recovery using said system：
High temperature (690 DEG C～715 DEG C of temperature range) reclaimed sand continuously enters in the first cooler of perpendicular pot type from top, by top
Fluosolids high temperature regeneration sand is carried out with boiling fluidisation heat exchange, the height meanwhile, in the presence of plate-like distributing device, through preliminary cooling
Warm reclaimed sand is dispersed in multiple cooling passages being formed by heat exchange blowpipe, by heat exchange air-supply in cooling passage
Cold air in pipe makees further heat exchange to high temperature regeneration sand, after high temperature sand is cooled within 300 DEG C, just cold via perpendicular pot type
But the outlet valve discharging of device bottom.
Entirely hot sand just cold process, hot sand have passed through fluosolids, heat transfer layer twice with air heat-exchange, rate of cooling is fast, cold
The hot blast temperature that hot sand produces is about 400 DEG C, is discharged by the exhaust outlet on primary cooler top, enters ORC TRT.Have
Advantages below：
(1) it is suitable for the full-boiled process sand regeneration technology of high-temperature roasting, oven-fresh high temperature regeneration sand can be cooled to by 700 DEG C about
Less than 300 DEG C.
(2), using the comprehensive type of cooling of heat transfer and fluosolids boiling, sand rate of cooling is fast, and after heat exchange, air themperature is high.
(3) erect tank chiller liner fibrous material, outside wall temperature is low, and radiation loss is few.
(4) high temperature air UTILIZATION OF VESIDUAL HEAT IN organic Rankine cycle devices high temperature sand being swapped out generate electricity, and improve full-boiled process again
The raw system waste heat response rate, reduces energy consumption.
(5) using TRT, high temperature air is cooled down, decreased the air quantity of dedusting fan, reduced blower fan power consumption.
(6) 10 yuan/ton of full-boiled process sand regeneration cost can be reduced, equipment investment cost is low, in 2 years, recoverable fully invested becomes
This.
Finally illustrate, preferred embodiment above only in order to the technical solution of the utility model to be described and unrestricted, to the greatest extent
Gutron is crossed above preferred embodiment and this utility model is described in detail, but those skilled in the art should manage
Solution, can make various changes, in the form and details without departing from this utility model claims institute to it
The scope limiting.
Claims (5)
1. a kind of new type high temperature regeneration Sand Cooling System it is characterised in that：Including passing sequentially through, the connected perpendicular pot type of pipeline is just cold
But device, gravitational precipitator or cyclone dust extractor, flue gas type organic Rankine generating set and sack cleaner, described perpendicular pot type is just cold
But device includes housing and chiller, and the top of described housing is provided with charging aperture and exhaust outlet, and lower section is provided with outlet valve,
In housing, the lower section of charging aperture is provided with plate-like distributing device, and described chiller is included in the setting of housing outer bottom zone circular
Air-supply bustle pipe and with described air-supply bustle pipe connect be arranged in housing be in longitudinal arrangement multiple heat exchange blowpipes, described erect
The bottom of the first cooler of pot type is provided with high pressure cooling blower, and described high pressure cooling blower is connected with air-supply bustle pipe, the plurality of
Heat exchange blowpipe is located at the lower section of plate-like distributing device.
2. new type high temperature according to claim 1 regeneration Sand Cooling System it is characterised in that：Described housing adopts inside and outside
Layer is steel plate, intermediate layer is the compound insulation structure of ceramic fibre.
3. new type high temperature according to claim 1 regeneration Sand Cooling System it is characterised in that：The plurality of heat exchange air-supply
Pipe is length-adjustable telescoping tube.
4. new type high temperature according to claim 1 regeneration Sand Cooling System it is characterised in that：The plurality of heat exchange air-supply
Pipe is equidistantly evenly distributed in housing, makes to be formed each other the cooling passage of consistent size.
5. new type high temperature according to claim 1 regeneration Sand Cooling System it is characterised in that：The plurality of heat exchange air-supply
The hot air spout of pipe is arranged obliquely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621019798.5U CN205996111U (en) | 2016-08-31 | 2016-08-31 | A kind of new type high temperature regenerates Sand Cooling System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621019798.5U CN205996111U (en) | 2016-08-31 | 2016-08-31 | A kind of new type high temperature regenerates Sand Cooling System |
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| Publication Number | Publication Date |
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| CN205996111U true CN205996111U (en) | 2017-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111889A (en) * | 2016-08-31 | 2016-11-16 | 中机中联工程有限公司 | A kind of new type high temperature reclaimed sand cooling system and exhaust heat recovering method |
-
2016
- 2016-08-31 CN CN201621019798.5U patent/CN205996111U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111889A (en) * | 2016-08-31 | 2016-11-16 | 中机中联工程有限公司 | A kind of new type high temperature reclaimed sand cooling system and exhaust heat recovering method |
| CN106111889B (en) * | 2016-08-31 | 2018-05-18 | 中机中联工程有限公司 | A kind of high temperature regeneration Sand Cooling System and exhaust heat recovering method |
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