CN206936276U - A kind of resin sand regeneration system - Google Patents
A kind of resin sand regeneration system Download PDFInfo
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- CN206936276U CN206936276U CN201720679402.8U CN201720679402U CN206936276U CN 206936276 U CN206936276 U CN 206936276U CN 201720679402 U CN201720679402 U CN 201720679402U CN 206936276 U CN206936276 U CN 206936276U
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- rotary kiln
- discharging opening
- charging aperture
- resin sand
- regeneration system
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Abstract
A kind of resin sand regeneration system is the utility model is related to, including：Charging hopper, puddle mixer, feeder, rotary kiln stove, lifting conveying device, boiling cooling bed, screening machine；Wherein, the discharging opening of the charging hopper coordinates with the charging aperture of puddle mixer and connected, the discharging opening of puddle mixer coordinates with the charging aperture of feeder and connected, the discharging opening of feeder coordinates with the charging aperture of rotary kiln stove and connected, feeding mechanism cooperation of the discharging opening of rotary kiln stove with lifting conveying device connects, the discharging mechanism of conveying device is lifted with the charging aperture cooperation of boiling cooling bed to connect, the discharging opening of boiling cooling bed coordinates with the charging aperture of screening machine and connected, and the material-receiving device outside the discharging opening and system of screening machine coordinates.The technical solution of the utility model overcomes the deficiencies in the prior art, and the recovery and environmental protection to resin sand have positive effect.
Description
Technical field
Foundry Production apparatus field is the utility model is related to, is to be related to a kind of resin sand regeneration system specifically.
Background technology
At the beginning of the last century 80's, Ester cured phenol resin sand is invented, and is applied in Foundry Production.In
State's casting factory can trace back to the end of the eighties using alkalescent phenol resin sand, really in resin sand production line application and high-volume
Production and application is in the nineties later stage.Ester cured alkalescent phenol resin sand produces steel-casting with its outstanding casting model powder characteristic
As optimal selection process.Ester cured alkalescent phenol resin sand is after usage, it is necessary to which carrying out regeneration treatment can just reuse.
So-called regeneration treatment, the resin of sand grains top layer residual is exactly removed, sand grains is left and is continuing with.
Current Ester cured alkalescent phenol resin sand renovation process mainly has two kinds：Mechanical Method and Re Fa；Two methods institute
The resin sand regeneration system used is also different.
Mechanical process regeneration is exactly to be handled the old sand after cast by mechanical friction, removes the tree of old sand remained on surface
A kind of renovation process of adipose membrane.Accordingly, used Mechanical Method resin sand regeneration system mainly includes breaker, machinery rubs
Wipe device, screening dust arrester.Pass through ESEM（SEM）And power spectrum, the production treated to Mechanical Method resin sand regeneration system
Product are analyzed, it has been found that Mechanical Method resin sand regeneration system striping rate is relatively low, and reclaimed sand surface is most of by old resin
Film wraps up, and in surface resin film with the presence of tiny particles content；A number of K, Na chemical combination is contained on reclaimed sand surface simultaneously
Thing.So to reclaimed sand in use, new resin is contacted with silica sand surface, it is but old coated in remaining
Surface resin film, and due to the presence of fine particle and compound powder, cause the bond strength of new and old resin relatively low, seriously
It has impact on the intensity of sand mold.
Thermal reclamation is by being heated to high temperature to old sand, burning the cull film on old sand surface and lose points solution to reach
Except a kind of renovation process of purpose.Accordingly, used hot method resin sand regeneration system mainly includes breaker, heating is burnt
Lose device, screening dust arrester；The temperature for wherein heating ablation device is typically set in 400 ~ 800 DEG C.But due to alkaline phenol
The characteristic of urea formaldehyde itself, when heating-up temperature is more than 600 DEG C, alkalescent phenol resin can produce larger viscosity, make sand grains again
It can be bonded together again, and temperature is higher, and bonding is more serious, makes the effect of striping and decomposition reaction very uneven.
Therefore, in place of both existing equal Shortcomings of resin sand regeneration system：Poor processing effect, resin film residual rate
Height, reclaimed sand using when sand mold intensity be greatly reduced；It is different from furan resin self curing sand and phenol urethane self-hardening sand, Mechanical Method and heat
Even if after the alkalescent phenol resin reclaimed sand plus 10% or so fresh sand after the processing of method resin sand regeneration system, reclaimed sand core sand
Intensity can still decline 60 ~ 85%, even more more.
In summary, a kind of new resin sand regeneration system, place when lifting alkalescent phenol resin reclaimed sand regenerates are designed
Effect is managed, is those skilled in the art's urgent problem to be solved.
The content of the invention
The utility model is mainly for resin sand regeneration system in the prior art in processing Ester cured alkalescent phenol resin sand
When existing deficiency, propose a kind of new chemical reaction method resin sand regeneration system, to resin sand to be regenerated and add de-
Film is crushed, mixed, being heated, cooling and dedusting, screening, lifted treatment effect, reduce resin film residual rate, make by processing
Reclaimed sand technical indicator when in use it is suitable with fresh sand.
The utility model adopts the following technical scheme that：
A kind of resin sand regeneration system, it is characterised in that including：Charging hopper, puddle mixer, feeder, rotary kiln stove, lifting are defeated
Send device, boiling cooling bed, screening machine；
Wherein, the discharging opening of the charging hopper coordinates with the charging aperture of puddle mixer and connected, the discharging opening of puddle mixer and feeding
The charging aperture of machine coordinates and connected, and the discharging opening of feeder coordinates with the charging aperture of rotary kiln stove and connected, and the discharging opening of rotary kiln stove is with carrying
The feeding mechanism cooperation for rising conveying device connects, and the charging aperture of the discharging mechanism and boiling cooling bed that lift conveying device coordinates phase
Connect, the discharging opening of boiling cooling bed coordinates with the charging aperture of screening machine and connected, the splicing dress outside the discharging opening and system of screening machine
Put cooperation.
Preferably, the puddle mixer is that the mulling of single axle helical formula crushes feeding integrated machine, and body is horizontal cylinder, charging
Mouth is arranged on upper right side, and discharging opening is arranged on lower left, and motor is arranged on the right side of body, by transmission device and body
Single shaft connects.
Preferably, the feeder is feed screw, and charging aperture is arranged on upper right side, and discharging opening is arranged on left, electricity
Motivation is arranged on the right side of body, passes through the spiral axis connection in transmission device and body.
Preferably, the rotary kiln stove is the zoned temperature control rotary kiln stove of two warm areas, and the order passed through by resin sand divides, first
Warm area temperature-control range is 250 DEG C ~ 500 DEG C, and the second warm area temperature-control range is 640 DEG C ~ 900 DEG C, and the first warm area and the second warm area are grown
It is 3 to spend ratio:2；The rotary kiln stove inclination angle is 0 ~ 3 ° adjustable, and rotating speed is 0.5 ~ 3r/min frequency controls.
Preferably, the rotary kiln stove is heated by natural gas rotary kiln stove, the rotary kiln stove be provided with flue gas leading, natural gas tube,
Air hose, the heat-exchange device to natural gas tube heating is additionally provided with the flue gas leading.
Preferably, the rotary kiln stove is electrical heating rotary kiln stove.
Preferably, the lifting conveying device is bucket elevator or belt conveyor.
Preferably, the first warm area of rotary kiln stove temperature-control range is 300 DEG C ~ 400 DEG C.
Preferably, the boiling cooling bed include be used for cool down sand grains, separate sand dust cooling bed body and be cooling bed fortune
Row provides the centrifugal fan of unheated air, and the cooling bed body is case structure, is provided with " low-high-low " in inner bottom surface
The riser that mode arranges, cooling bed body lower right are provided with air inlet, and upper right side is provided with charging aperture, and lower left is provided with discharging
Mouthful, upper left side is provided with out dirt exhaust outlet.
Preferably, the screening machine is vibrating screen classifier, is provided with one layer of screen cloth in body, body is divided into by screen cloth,
Two parts of lower floor are provided with material outlet, the screen cloth in side bottom respectively（71）Go out with body lower floor bottom surface to material
Mouth direction is obliquely installed.
The beneficial effects of the utility model are：
（1）Resin sand to be regenerated and anti-application accessory complete reaction in rotary kiln stove, compare machine by broken, well mixed
Tool method regenerative system clearance is high, without the caking phenomenon of thermal reclamation system.
（2）By experimental verification, the reclaimed sand treated by the utility model resin sand regeneration system, sampled with fresh sand
Sand compressive strength experiment is carried out, fruiting characteristic is on close level.（It see the table below）
* compression strength numerical value described in upper table measures under following experiment condition：Temperature X relative humidity=8 ~ 15 DEG C
X35%.Fresh sand and old sand are certain casting factory Ester cured alkaline phenol formaldehyde sand production line sand, and resin and curing agent are commercially available prod.
Resin JF-200, curing agent HQG20.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the puddle mixer internal structure schematic diagram in the utility model embodiment；
Fig. 3 is the boiling cooling bed machine internal structure schematic diagram in the utility model embodiment；
Fig. 4 is the screening machine internal structure schematic diagram in the utility model embodiment.
In figure：1. charging hopper, 2. puddle mixers, 3. feeders, 4. rotary kiln stoves, 5. lifting conveying devices, 6. boilings
Cooling bed, 7. screening machines, 41. flue gas leadings, 42. natural gas tubes, 43. air hoses, 44. heat-exchange devices, 61. is cooling bed
Body, 62. centrifugal fans, 71. screen clothes, 611. risers.
Embodiment
Below in conjunction with drawings and examples, embodiment of the present utility model is described in detail as follows：
A kind of resin sand regeneration system, its structure as shown in Figure 1, including：Charging hopper 1, puddle mixer 2, feeder 3, turn
Kiln 4, lifting conveying device 5, boiling cooling bed 6, screening machine 7；
Wherein, the charging aperture of the puddle mixer 2 coordinates with the discharging opening of charging hopper 1 and connected, and the discharging opening of puddle mixer 2 is with sending
The charging aperture of material machine 3 coordinates and connected, and the discharging opening of feeder 3 coordinates with the charging aperture of rotary kiln stove 4 and connected, the discharging of rotary kiln stove 4
Charging aperture cooperation of the mouth with lifting conveying device 5 connects, and lifts the discharging opening of conveying device 5 and the charging aperture of boiling cooling bed 6
Cooperation connects, and the discharging opening of boiling cooling bed 6 coordinates with the charging aperture of screening machine 7 and connected, the discharging opening and the system of screening machine 7
Outer material-receiving device coordinates and connected；
As shown in Figure 2, the puddle mixer 2 is that the mulling of single axle helical formula crushes feeding integrated machine, and body is horizontal cylinder
Shape, charging aperture are arranged on upper right side, and discharging opening is arranged on lower left, and motor is arranged on the right side of body, by transmission device with
Single shaft connection in body；
The feeder 3 is feed screw, and charging aperture is arranged on upper right side, and discharging opening is arranged on left, and motor is set
Put on the right side of body, pass through the spiral axis connection in transmission device and body；
The rotary kiln stove 4 is the zoned temperature control rotary kiln stove of two warm areas, and burner hearth angle of inclination is 1 °, rotating speed 1.5r/min,
Using heated by natural gas mode；The order passed through by resin sand divides, and the first warm area temperature is set as 450 DEG C, the second warm area temperature
Degree is set as 750 DEG C, and the first warm area and the second warm area lenth ratio are 3:2；As shown in Figure 1, rotary kiln stove 4 is additionally provided with useless
Tracheae 41, natural gas tube 42, air hose 43, the heat-exchange device heated to natural gas tube 42 is additionally provided with the flue gas leading 41
44；
The lifting conveying device 5 is in the present embodiment bucket elevator；
As shown in Figure 3, the boiling cooling bed 6 includes being used to cool down sand grains, separates the cooling bed body 61 of sand dust and be
The centrifugal fan 62 that bed operating provides unheated air is cooled down, the cooling bed body 61 is case structure, is set in inner bottom surface
There is the riser 611 that " low-high-low " mode arranges, cooling bed body lower right is provided with air inlet, and upper right side is provided with charging aperture,
Lower left is provided with discharging opening, and upper left side is provided with out dirt exhaust outlet；
As shown in Figure 4, the screening machine 7 is vibrating screen classifier, one layer of screen cloth 71 is provided with body, body is by screen cloth
The part for being divided into upper and lower layer is respectively arranged with material outlet, and the screen cloth 71 and body lower floor bottom surface are with to material outlet side
Set to inclined mode.
The present embodiment course of work is as follows：
1. Ester cured alkalescent phenol resin sand to be regenerated and anti-application accessory are poured into charging hopper in proportion, into mulling
Machine；
2. material is broken and is well mixed in puddle mixer, as the propulsion of screw rod is transported to puddle mixer discharging
Mouthful, feeder is subsequently entered, and rotary kiln stove is sent into by feeder；
3. the warm area of rotary kiln stove first and the second warm area are set by technological requirement, material in rotary kiln stove as body of heater rotates and
Tilt and slowly move ahead, the alkalescent phenol resin film of anti-application accessory and sand grain surface fully after completion of the reaction, all material from
Rotary kiln furnace discharge mouth enters the charging aperture of lifting conveying device；
4. lifting conveying device after material lift to eminence, will pour into material the charging aperture in cooling bed body upper right side,
The air inlet from cooling bed body lower right blasts high-voltage high-speed air stream simultaneously, and sand, dirt separation are caused while wind cooling temperature lowering,
Dirt, wind are from the upper left dedusting exhaust outlet discharge of cooling bed body, and sand grains is discharged from the discharging opening of cooling bed body lower left, into sieve
Extension set；
5. screening machine is sieved to sand grains, and the material above and below screen cloth is drained into different outlets respectively；The sand grains of discharge
As complete product, casting can be put into again and is used.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to embodiment will be apparent for those skilled in the art, as defined herein
General Principle can in other embodiments be realized, do not give in the case where not departing from spirit or scope of the present utility model
Describe the part presented with partial enlargement in detail, be prior art, herein without repeating.Therefore, the utility model will not
It is intended to be limited to the embodiments shown herein, and is to fit to consistent with principles disclosed herein and feature most wide
Scope.
Claims (10)
- A kind of 1. resin sand regeneration system, it is characterised in that including：Charging hopper（1）, puddle mixer（2）, feeder（3）, rotary kiln stove （4）, lifting conveying device（5）, boiling cooling bed（6）, screening machine（7）；Wherein, the charging hopper（1）Discharging opening and puddle mixer（2）Charging aperture coordinate connect, puddle mixer（2）Discharging opening with Feeder（3）Charging aperture coordinate connect, feeder（3）Discharging opening and rotary kiln stove（4）Charging aperture coordinate connect, rotary kiln stove （4）Discharging opening with lifting conveying device（5）Feeding mechanism coordinate connect, lifted conveying device（5）Discharging mechanism and boiling Rise cooling bed（6）Charging aperture coordinate connect, boiling cooling bed（6）Discharging opening and screening machine（7）Charging aperture coordinate connect, Screening machine（7）Discharging opening and system outside material-receiving device coordinate.
- 2. resin sand regeneration system according to claim 1, it is characterised in that the puddle mixer（2）For single axle helical formula Mulling crushes feeding integrated machine, and body is horizontal cylinder, and charging aperture is arranged on upper right side, and discharging opening is arranged on lower left, electricity Motivation is arranged on the right side of body, is connected by transmission device with the single shaft in body.
- 3. resin sand regeneration system according to claim 1, it is characterised in that the feeder（3）For feed screw, Charging aperture is arranged on upper right side, and discharging opening is arranged on left, and motor is arranged on the right side of body, by transmission device and body Spiral axis connection.
- 4. resin sand regeneration system according to claim 1, it is characterised in that the rotary kiln stove（4）For point of two warm areas Area's temperature control rotary kiln stove, the order passed through by resin sand divide, and the first warm area temperature-control range is 250 DEG C ~ 500 DEG C, the second warm area temperature It is 640 DEG C ~ 900 DEG C to control scope, and the first warm area and the second warm area lenth ratio are 3:2；The rotary kiln stove（4）Inclination angle can for 0 ~ 3 ° Regulation, rotating speed is 0.5 ~ 3r/min frequency controls.
- 5. resin sand regeneration system according to claim 1, it is characterised in that the rotary kiln stove（4）For heated by natural gas Rotary kiln stove, the rotary kiln stove（4）It is provided with flue gas leading（41）, natural gas tube（42）, air hose（43）, the flue gas leading（41）On It is additionally provided with to natural gas tube（42）The heat-exchange device of heating（44）.
- 6. resin sand regeneration system according to claim 1, it is characterised in that the rotary kiln stove（4）For electrical heating rotary kiln Stove.
- 7. resin sand regeneration system according to claim 1, the lifting conveying device（5）It is defeated for bucket elevator or belt Send machine.
- 8. resin sand regeneration system according to claim 4, the rotary kiln stove（4）First warm area temperature-control range be 300 DEG C ~ 400℃。
- 9. resin sand regeneration system according to claim 1, the boiling cooling bed（6）Including for cooling down sand grains, dividing From the cooling bed body of sand dust（61）With the centrifugal fan that air-flow is provided for cooling bed operating（62）, the cooling bed body（61）For Case structure, the riser that " low-high-low " mode arranges is provided with inner bottom surface（611）, cooling bed body lower right be provided with into Air port, upper right side are provided with charging aperture, and lower left is provided with discharging opening, and upper left side is provided with out dirt exhaust outlet.
- 10. resin sand regeneration system according to claim 1, the screening machine（7）For vibrating screen classifier, body is interior to be set There is one layer of screen cloth（71）, two parts that body is divided into upper and lower layer by screen cloth are provided with material outlet in side bottom respectively, described Screen cloth（71）It is obliquely installed with body lower floor bottom surface to material outlet direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720679402.8U CN206936276U (en) | 2017-06-13 | 2017-06-13 | A kind of resin sand regeneration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720679402.8U CN206936276U (en) | 2017-06-13 | 2017-06-13 | A kind of resin sand regeneration system |
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| CN206936276U true CN206936276U (en) | 2018-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658206A (en) * | 2020-12-07 | 2021-04-16 | 安徽省隆兴铸造有限公司 | Resin sand circulation recovery processing system |
-
2017
- 2017-06-13 CN CN201720679402.8U patent/CN206936276U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658206A (en) * | 2020-12-07 | 2021-04-16 | 安徽省隆兴铸造有限公司 | Resin sand circulation recovery processing system |
| CN112658206B (en) * | 2020-12-07 | 2024-04-05 | 安徽省隆兴铸造有限公司 | Resin sand recycling treatment system |
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