CN204220924U - Energy-saving flowing roaster - Google Patents
Energy-saving flowing roaster Download PDFInfo
- Publication number
- CN204220924U CN204220924U CN201420557162.0U CN201420557162U CN204220924U CN 204220924 U CN204220924 U CN 204220924U CN 201420557162 U CN201420557162 U CN 201420557162U CN 204220924 U CN204220924 U CN 204220924U
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- China
- Prior art keywords
- housing
- cylindrical shell
- sand
- cone
- point
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 101100041681 Takifugu rubripes sand gene Proteins 0.000 claims abstract description 72
- 239000004576 sand Substances 0.000 claims abstract description 72
- 239000002699 waste material Substances 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000001354 calcination Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model relates to a kind of energy-saving flowing roaster for recycling cast waste sand.Comprise that top is provided with exhaust uptake, cone bottomed cylindrical shell is established in bottom, be provided with sand export in the bottom centre of conical bottom; Be provided with first point of abrasive cone at the top of cylinder lumen, be provided with further for cast waste sand scattered loose sand device in the below of first point of abrasive cone, the roof of cylindrical shell is provided with antiquated sand and enters pipe, its bottom is just to the vertex of a cone of first point of abrasive cone; The outer wall of cylindrical shell is coated with heat-insulation layer, is provided with multiple combustor at the middle part of cylinder lateral wall; Heat exchanger is provided with above the bottom, conical bottom of cylinder lumen, this heat exchanger comprises flat columniform housing, the outer wall of housing and the inwall of cylindrical shell affixed, the through vertical tube of multiple longitudinal direction is connected with between the roof and diapire of housing, multiple vertical airduct is also provided with on the roof of housing, between each vertical tube, the inner chamber of airduct communicates with the inner chamber of housing, and the outer wall of housing is also provided with air intake.
Description
Technical field
The utility model belongs to roasting apparatus technical field, particularly relates to a kind of energy-saving flowing roaster for recycling cast waste sand.
Background technology
In modern foundry engieering, usually adopt precoated sand and resin sand etc. as the base material of Cheng Mo, after completing the casting of workpiece, above-mentioned precoated sand and resin sand become cast waste sand.Be limited to the delayed of the immature of antiquated sand treatment process and environmental protection ideas, there is no rational cast waste sand treatment process and equipment in early days.Consider recycling cast waste sand and recycle that there is great economic worth and the value of environmental protection, add that reclaimed sand coefficient of thermal expansion is low, the advantage of casting quality and yield rate can be improved, the treatment process of cast waste sand and equipment are constantly developed in recent years, and even foundry's configuration antiquated sand reclaim equiment becomes industry regulation.Recycling cast waste sand is generally divided into pulverizing and roasting two steps, is smashed by the block antiquated sand obtained in pulverising step after casting technique, adopts roaster to carry out to pulverous antiquated sand overlay film and the resin bed that surface is removed in calcination in calcination steps.Existing roaster generally comprises antiquated sand preheating section and antiquated sand furnace zone, rapid temperature increases under the effect of preheating section antiquated sand at high temperature air, the heat that the origin of heat of high temperature air produces in fuel oil or combustion gas, furnace zone is advanced into by thermal-flame calcination, rapidly brittle, the gasification and removing of antiquated sand surface coating under antiquated sand after intensification.There is the problem of energy waste in the roasting road of said structure, the reclaimed sand of discharging via bottom sand export has higher temperature, contains higher heat, is dissipated in surrounding environment and causes waste in the process that these heats cool at reclaimed sand.
Utility model content
The utility model provides a kind of flowing roaster of economize energy for solving in known technology the technical problem that exists.
The utility model for the technical scheme solving in known technology the technical problem that exists and take is: energy-saving flowing roaster comprises that top is provided with exhaust uptake, cone bottomed cylindrical shell is established in bottom, is provided with sand export in the bottom centre of conical bottom; Be provided with first point of abrasive cone at the top of cylinder lumen, be provided with further for cast waste sand scattered loose sand device in the below of first point of abrasive cone, the roof of cylindrical shell is provided with antiquated sand and enters pipe, its bottom is just to the vertex of a cone of first point of abrasive cone; The outer wall of cylindrical shell is coated with heat-insulation layer, is provided with multiple combustor at the middle part of cylinder lateral wall; Heat exchanger is provided with above the bottom, conical bottom of cylinder lumen, this heat exchanger comprises flat columniform housing, the outer wall of housing and the inwall of cylindrical shell affixed, the through vertical tube of multiple longitudinal direction is connected with between the roof and diapire of housing, multiple vertical airduct is also provided with on the roof of housing, between each vertical tube, the inner chamber of airduct communicates with the inner chamber of housing, and the outer wall of housing is also provided with air intake.
Advantage of the present utility model and good effect are: the utility model provides a kind of energy-saving flowing roaster of reasonable in design, by the bottom at cylinder lumen, heat exchanger is set, make that air fully absorbs the heat of reclaimed sand after roasting and temperature raises, hot-air upwards flows and to heat the top of cylinder lumen, preheating is carried out to the cast waste sand entering cylinder lumen, therefore the fuel that combustor consumption is less can complete the roasting process of high-quality, energy-saving effect is remarkable, built-in counter-flow heat exchanger high efficiente callback used heat makes fuel consumption few, reduce the cost of antiquated sand regeneration.Fully scatter after the setting of first point of abrasive cone and loose sand device makes cast waste sand enter cylindrical shell, roasting regeneration effect is more even.
Preferably: described loose sand device adopts metal perforated plate annular solder to obtain, for falling truncated cone shape, the diameter of its open top is greater than the diameter of first point of abrasive cone bottom margin.
Preferably: be equipped with air guide block at the top of each airduct, the bottom of described air guide block is provided with upwards non-through air flue, sidewall is provided with the transverse air hole connected with air flue.
Preferably: in the below of heat exchanger, the mouth of pipe place, lower end of each vertical tube is equipped with second point of abrasive cone.
Accompanying drawing explanation
Fig. 1 is that master of the present utility model looks sectional structure schematic diagram.
In figure: 1, antiquated sand enters pipe; 2, exhaust uptake; 3, first point of abrasive cone; 4, loose sand device; 5, heat-insulation layer; 6, cylindrical shell; 7, combustor; 8, heat exchanger; 9, air intake; 10, sand export; 11, conical bottom; 12, second point of abrasive cone; 13, column.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples and be described in detail as follows:
Refer to Fig. 1, the utility model comprises the cylindrical shell 6 that top is provided with exhaust uptake 2, bottom is provided with conical bottom 11, is provided with sand export 10 in the bottom centre of conical bottom 11.
Be provided with first point of abrasive cone 3 at the top of cylindrical shell 6 inner chamber, be provided with further for cast waste sand scattered loose sand device 4 in the below of first point of abrasive cone 3, the roof of cylindrical shell 6 is provided with antiquated sand and enters pipe 1, its bottom is just to the vertex of a cone of first point of abrasive cone 3.Cast waste sand enters via antiquated sand the inner chamber that pipe 1 enters cylindrical shell 6, drops on the vertex of a cone of first point of abrasive cone 3, scatters afterwards via the conical surface.Loose sand device 4 is for promoting the dispersion effect of antiquated sand further.As shown in FIG., in the present embodiment, the structure of loose sand device 4 is as follows: adopt metal perforated plate annular solder to obtain, for falling truncated cone shape, the diameter of its open top is greater than the diameter of first point of abrasive cone 3 bottom margin.Antiquated sand enters in loose sand device 4 after being fallen by the conical surface of first point of abrasive cone 3, the downward landing of the madial wall along metal perforated plate, then falls via the hole on orifice plate.After the effect of both first point of abrasive cone 3 and loose sand device 4, cast waste sand fully scatters at the inner chamber of cylindrical shell 6, is easier to follow-up roasting and pre-heating heat-exchanging process.
Be provided with multiple combustor 7 at the middle part of cylindrical shell 6 sidewall, the calcination flame that each combustor 7 produces, towards the inner chamber of cylindrical shell 6, carries out roasting to the antiquated sand constantly fallen.In the present embodiment, to be dispersed into the effect of surrounding environment by barrel in order to reduce heat in cylindrical shell 6, the outer wall of cylindrical shell 6 is coated with heat-insulation layer 5, and heat-insulation layer 5 can be chosen for the materials such as heat-preservation cotton.
Above the bottom of cylindrical shell 6 inner chamber, conical bottom 11, be provided with heat exchanger 8, this heat exchanger 8 adopts the version of countercurrent flow.As shown in FIG., heat exchanger 8 comprises flat columniform housing, the outer wall of housing and the inwall of cylindrical shell 6 affixed, the through vertical tube of multiple longitudinal direction is connected with between the roof and diapire of housing, multiple vertical airduct is also provided with on the roof of housing, between each vertical tube, the inner chamber of airduct communicates with the inner chamber of housing, and the outer wall of housing is also provided with air intake 9.
The course of work of heat exchanger 8: the antiquated sand completing roasting enters between each airduct downwards, continue in downward process along each vertical tube, with the air inversion heat exchange pumped into via air intake 9, in this process, the temperature of reclaimed sand reduces, the temperature of air raises, air after intensification upwards enters the inner chamber of cylindrical shell 6 via airduct, carry out preheating to the cast waste sand of top.
The air itself that pumping enters housing has certain pressure, and therefore hot-air is gone out by the top jet of each airduct, therefore completes the reclaimed sand after roasting can not enter heat exchanger 8 housing via airduct.In the present embodiment, inner in order to ensure that reclaimed sand does not enter heat exchanger 8 further, all arrange air guide block at the top of each airduct, air guide block is metal material, is provided with upwards non-through air flue, sidewall is provided with the transverse air hole connected with air flue bottom it.Hot-air is sprayed to side by pore through airduct and air flue again, ensure that reclaimed sand can not enter airduct.
The reclaimed sand completing heat exchange in heat exchanger 8 drops in conical bottom 11 via vertical tube downwards, discharges after downward landing through sand export 10.In the present embodiment, in order to avoid reclaimed sand takes away more heat, reclaimed sand fully can be scattered again, the bottom making the heat wherein contained fully be dispersed into cylindrical shell 6 inner chamber also upwards enters the top of cylindrical shell 6 inner chamber via heat exchanger 8, therefore can in the below of heat exchanger 8, the mouth of pipe place, lower end of each vertical tube all arranges second point of abrasive cone 12, reclaimed sand fully scatters after the conical surface of second point of abrasive cone 12.It is as a whole that each second point of abrasive cone 12 can adopt metallic rod to connect, then be secured on the inwall of cylindrical shell 6.
Hot-air cast waste sand being completed to preheating is upwards discharged via exhaust uptake 2.
Claims (4)
1. an energy-saving flowing roaster, it is characterized in that: comprise the cylindrical shell (6) that top is provided with exhaust uptake (2), bottom is provided with conical bottom (11), be provided with sand export (10) in the bottom centre of conical bottom (11); First point of abrasive cone (3) is provided with at the top of cylindrical shell (6) inner chamber, be provided with further for cast waste sand scattered loose sand device (4) in the below of first point of abrasive cone (3), the roof of cylindrical shell (6) is provided with antiquated sand and enters pipe (1), its bottom is just to the vertex of a cone of first point of abrasive cone (3); The outer wall of cylindrical shell (6) is coated with heat-insulation layer (5), is provided with multiple combustor (7) at the middle part of cylindrical shell (6) sidewall; In the bottom of cylindrical shell (6) inner chamber, the top of conical bottom (11) is provided with heat exchanger (8), this heat exchanger (8) comprises flat columniform housing, the inwall of the outer wall of housing and cylindrical shell (6) is affixed, the through vertical tube of multiple longitudinal direction is connected with between the roof and diapire of housing, multiple vertical airduct is also provided with on the roof of housing, between each vertical tube, the inner chamber of airduct communicates with the inner chamber of housing, and the outer wall of housing is also provided with air intake (9).
2. energy-saving flowing roaster as claimed in claim 1, it is characterized in that: described loose sand device (4) adopts metal perforated plate annular solder to obtain, for falling truncated cone shape, the diameter of its open top is greater than the diameter of first point of abrasive cone (3) bottom margin.
3. energy-saving flowing roaster as claimed in claim 1, is characterized in that: be equipped with air guide block at the top of each airduct, and the bottom of described air guide block is provided with upwards non-through air flue, sidewall is provided with the transverse air hole connected with air flue.
4. the energy-saving flowing roaster as described in any one of claims 1 to 3, is characterized in that: be equipped with second point of abrasive cone (12) at the mouth of pipe place, lower end of the below of heat exchanger (8), each vertical tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557162.0U CN204220924U (en) | 2014-09-25 | 2014-09-25 | Energy-saving flowing roaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557162.0U CN204220924U (en) | 2014-09-25 | 2014-09-25 | Energy-saving flowing roaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204220924U true CN204220924U (en) | 2015-03-25 |
Family
ID=52919067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420557162.0U Expired - Lifetime CN204220924U (en) | 2014-09-25 | 2014-09-25 | Energy-saving flowing roaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204220924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275436A (en) * | 2014-09-25 | 2015-01-14 | 金莹铸造材料（天津）有限公司 | Energy-saving type flowing roasting furnace |
-
2014
- 2014-09-25 CN CN201420557162.0U patent/CN204220924U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275436A (en) * | 2014-09-25 | 2015-01-14 | 金莹铸造材料（天津）有限公司 | Energy-saving type flowing roasting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150325 |