CN113000784A - Treatment process for recycled molding sand - Google Patents
Treatment process for recycled molding sand Download PDFInfo
- Publication number
- CN113000784A CN113000784A CN202110254235.3A CN202110254235A CN113000784A CN 113000784 A CN113000784 A CN 113000784A CN 202110254235 A CN202110254235 A CN 202110254235A CN 113000784 A CN113000784 A CN 113000784A
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- China
- Prior art keywords
- molding sand
- case
- sand
- magnetic separation
- fixedly connected
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Classifications
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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
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
-
- 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
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
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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
Abstract
The invention discloses a treatment process for reclaimed molding sand, which comprises the following steps: cooling the crushed molding sand by flowing cold air, screening and classifying the cooled molding sand by a molding sand sieving machine, mixing the sand and inspecting; the molding sand sieving machine comprises a case, wherein a crushing mechanism, a vibration sieving mechanism, a magnetic separation mechanism and a classification sieving mechanism are sequentially arranged in the case from top to bottom, the magnetic separation mechanism is electrically connected with the case in a sliding manner, an electric connection mechanism is arranged on the outer side of the case, an installation port is arranged at the position of the case corresponding to the magnetic separation mechanism, a sealing mechanism is arranged on the installation port, a sand outlet is arranged on the outer side of the side wall of the case, and an inclined sand guide plate is arranged on the side wall of the case; the molding sand screening machine adopts flowing cold air to cool the molding sand, reduces the temperature of the molding sand while removing water vapor, further crushes, screens, magnetically separates and screens the molding sand by the molding sand screening machine, has multiple functions, reduces the occupied area, improves the working efficiency, reduces the working strength, ensures that the same batch of molding sand has the same particles, and improves the quality of novel sand.
Description
Technical Field
The invention relates to the technical field of molding sand treatment, in particular to a treatment process for recycled molding sand.
Background
Molding sand is used as a molding material in casting. The molding sand is generally prepared by mixing molding materials such as raw sand for casting, a molding sand binder, auxiliary additives and the like according to a certain proportion. The molding sand can be classified into clay sand, water glass sand, cement sand, resin sand, etc. according to the binder used. Clay sand, sodium silicate sand and resin sand are used most.
The molding sand is in order to practice thrift the expense spending and reduce the waste to the molding sand after the foundry goods precision casting is accomplished, need carry out recovery processing to the molding sand, in order to reach reuse's purpose, the molding sand is after the breaker is broken from the foundry goods, the temperature is high, after the cooling, the surface adsorbs one deck steam easily, cause the humidity among the molding sand recovery processing process, influence the molding sand and use, present molding sand processing procedure is smashing, the magnetic separation, the screening, need adopt a plurality of processes of a plurality of machinery to go on, floor area is big, low working efficiency, high working strength, and the molding sand granule of retrieving differs, influence the quality of new molding sand.
Disclosure of Invention
The invention mainly aims to provide a treatment process for recycled molding sand, which adopts flowing cold air to cool broken molding sand, reduces the temperature of the molding sand while removing water vapor, further crushes, screens, magnetically separates and screens the broken molding sand by using a molding sand sieving machine, adopts multiple functions, reduces the occupied area, improves the working efficiency, reduces the working strength, has good effect of adsorbing iron blocks in the molding sand, and simultaneously adopts the step screening to grade the molding sand particles, screens out molding sand with different diameters, ensures that the same batch of molding sand particles are the same, improves the quality of new molding sand, and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that: a treatment process for reclaimed molding sand comprises the following steps:
step one, molding sand pretreatment: placing the recycled molding sand in a crusher for crushing, and cooling by flowing cold air;
step two, screening and sorting molding sand: placing the molding sand subjected to air cooling in a molding sand sieving machine for screening and classification;
step three, sand mixing: respectively mixing the recycled molding sand with adhesive and new sand according to the grade of the screened recycled molding sand to obtain new molding sand;
step four, checking: inspecting the mixed novel sand, and conveying the sand to a storage tank of a molding machine after the sand is qualified;
the molding sand sieving machine comprises a machine case, the lower terminal surface lateral wall fixed connection frame of machine case, the lower extreme of machine case is equipped with the sand leakage mouth of frustum type, machine incasement from the top down is equipped with in proper order and pulverizes mechanism, vibration screening mechanism, magnetic separation mechanism and classified screening mechanism, pulverize mechanism and quick-witted case swing joint, the top lateral wall that the machine case is located vibration screening mechanism is equipped with except that miscellaneous mouthful, except that installing sealed window on the mouthful, magnetic separation mechanism and quick-witted case sliding electrical connection just are located the outside of machine case and are equipped with and connect electric mechanism, machine case and magnetic separation mechanism correspond the position and are equipped with the installing port, the installation seals the mechanism on the installing port, the outside that machine case lateral wall is located classified screening mechanism is equipped with the sand outlet, the below that machine case lateral wall is located the sand outlet is equipped with the sand guide plate of slope, sand guide.
Preferably, the grinding mechanism comprises four parallel grinding rollers at intervals, two ends of each grinding roller are movably connected with the chassis through rotating shafts, the end part of each rotating shaft at one end of each grinding roller is fixedly connected with a gear, the adjacent gears are in meshing connection, and one rotating shaft is in transmission connection with a grinding motor.
Preferably, the inner wall of the case is fixedly connected with symmetrical material blocking platforms, the cross sections of the material blocking platforms are in a right-angle trapezoidal shape, and arc grooves embedded with the crushing rollers are formed in the side faces of the material blocking platforms.
Preferably, the vibration screening mechanism includes reel and screen cloth, screen cloth and reel inner wall fixed connection, the four corners below of reel is equipped with the backup pad with quick-witted incasement wall fixed connection, the upper end fixed connection gag lever post of backup pad, gag lever post and reel sliding connection just the spring is cup jointed to the outer lane that the gag lever post is located between reel and the backup pad, the below of reel be equipped with quick-witted case swing joint's eccentric subassembly.
Preferably, the eccentric subassembly includes the bull stick of symmetry, the both ends and the quick-witted case swing joint of bull stick, two the one end of bull stick stretches out quick-witted case and tip fixed connection takes the tooth, connect through the cingulum between the tooth, the oval wheel of fixed cup joint and reel bottom contact on the bull stick, one of them eccentric motor is connected to the one end of bull stick.
Preferably, the upper end face of the screen frame is fixedly connected with an annular material baffle plate, the cross section of the annular material baffle plate is in a right-angled triangle shape, and the outer side face of the annular material baffle plate is in sliding connection with the chassis in a fitting mode.
Preferably, magnetic separation mechanism includes a plurality of parallel arrangement's magnetic separation case, the both ends side fixed connection draw runner of magnetic separation case, the draw runner is used for connecting a plurality of magnetic separation cases as an organic whole, magnetic separation case and draw runner vertically both sides face are equipped with the magnetic separation mouth of internal contraction, the magnetic separation incasement is equipped with solenoid assembly, the draw runner side be equipped with every magnetic separation incasement solenoid assembly electric connection's conducting block one, the inner wall of machine case is equipped with the spout that corresponds with the draw runner, conducting block one with connect electric connection of electric mechanism.
Preferably, the power connection mechanism comprises a conductive strip and a second conductive block, the second conductive block is fixedly connected with the conductive strip, the conductive strip is embedded in the side wall of the case, the second conductive block is embedded in the inner wall of the sliding groove and electrically connected with the first conductive block, and the conductive strip is electrically connected with the power connection plug through a time relay.
Preferably, the sealing mechanism comprises a sealing plate, two ends of the sealing plate are fixedly connected with ejector rods corresponding to the sliding strips, the ejector rods are in close contact with end faces of the sliding strips, the outer side face of the sealing plate is fixedly connected with pull strips, the case is located on the outer side of the upper portion and the lower portion of the mounting port and is fixedly connected with screw rods, two ends of the pull strips are connected with the screw rods in an inserting mode, and the outer ring of the screw rods is fixedly connected with locking bolts.
Preferably, the classifying and screening mechanism comprises a plurality of classifying screens which are obliquely arranged in parallel, the diameters of the screen holes of the classifying screens are gradually reduced from top to bottom, the sand outlet is positioned at the oblique bottom of the classifying screens, and the oblique directions of the sand guide plates between adjacent sand outlet are opposite.
Compared with the prior art, the invention has the following beneficial effects: the molding sand screening machine adopts flowing cold air to cool broken molding sand, reduces the temperature of the molding sand while removing water vapor, further crushes, screens, magnetically separates and screens the broken molding sand by using the molding sand screening machine, has multiple functions, reduces the occupied area, improves the working efficiency, reduces the working strength, has good adsorption effect on iron blocks in the molding sand, and simultaneously screens the molding sand particles in a grading way to screen molding sand with different diameters, ensures that the same batch of molding sand particles are the same, and improves the quality of novel sand.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a portion of the overall structure of the present invention;
FIG. 3 is a perspective view of the enclosure of the present invention;
FIG. 4 is a schematic perspective view of the internal structure of the case according to the present invention;
FIG. 5 is a perspective view of the grinding mechanism of the present invention.
FIG. 6 is a schematic perspective view of a vibratory screening mechanism of the present invention;
FIG. 7 is a perspective view of the eccentric assembly of the present invention;
FIG. 8 is a schematic perspective view of a magnetic separation mechanism according to the present invention;
FIG. 9 is a perspective view of the sealing mechanism of the present invention connected to a chassis;
fig. 10 is a schematic perspective view of the power connection mechanism of the present invention.
In the figure: 1. a chassis; 2. a frame; 3. a sand leakage port; 4. a grinding mechanism; 41. a crushing roller; 42. a rotating shaft; 43. a gear; 44. a grinding motor; 45. a material blocking platform; 5. a vibratory screening mechanism; 51. a screen frame; 52. screening a screen; 53. a support plate; 54. a limiting rod; 55. a spring; 56. an eccentric assembly; 561. a rotating rod; 562. toothed; 563. a toothed belt; 564. an elliptical wheel; 565. an eccentric motor; 57. an annular striker plate; 6. a magnetic separation mechanism; 61. a magnetic separation box; 62. a slide bar; 63. a magnetic separation port; 64. an electromagnetic coil assembly; 65. a first conductive block; 66. a triangular prism; 7. an installation port; 8. a sealing mechanism; 81. a sealing plate; 82. a top rod; 83. bracing; 84. a screw; 85. locking the bolt; 9. a power connection mechanism; 91. a conductive strip; 92. a second conductive block; 93. a time relay; 94. an electric plug; 10. removing impurities; 11. sealing the window; 12. a sand outlet; 13. a sand guide plate; 14. a baffle plate; 15. a chute; 16. and (4) grading the screen.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
A treatment process for reclaimed molding sand comprises the following steps:
step one, molding sand pretreatment: placing the recycled molding sand in a crusher for crushing, and cooling by flowing cold air;
step two, screening and sorting molding sand: placing the molding sand subjected to air cooling in a molding sand sieving machine for screening and classification;
step three, sand mixing: respectively mixing the recycled molding sand with adhesive and new sand according to the grade of the screened recycled molding sand to obtain new molding sand;
step four, checking: and inspecting the mixed novel sand, and conveying the sand into a molding machine storage tank after the sand is qualified.
As shown in fig. 1-10, the molding sand sieving machine comprises a machine box 1, the lower end face side wall of the machine box 1 is fixedly connected with a frame 2, the lower end of the machine box 1 is provided with a frustum-shaped sand leakage port 3, the upper end of the machine box 1 is provided with a molding sand inlet, the machine box 1 is internally provided with a crushing mechanism 4, a vibration sieving mechanism 5, a magnetic separation mechanism 6 and a classification sieving mechanism from top to bottom in sequence, the crushing mechanism 4 is movably connected with the machine box 1, the machine box 1 is provided with a impurity removing port 10 on the upper side wall of the vibration sieving mechanism 5, a sealing window 11 is arranged on the impurity removing port 10, the magnetic separation mechanism 6 is electrically connected with the machine box 1 in a sliding manner and is provided with an electric connection mechanism 9 on the outer side of the machine box 1, the machine box 1 is provided with a mounting port 7 corresponding to the magnetic separation mechanism 6, a sealing mechanism 8 is arranged on the, an inclined sand guide plate 13 is arranged below the sand outlet 12 on the side wall of the case 1, and a baffle plate 14 is fixedly connected to the outer side of the sand guide plate 13.
In this embodiment, the grinding mechanism 4 includes four parallel grinding rollers 41 spaced apart, two ends of the grinding rollers 41 are movably connected to the chassis 1 through a rotating shaft 42, a gear 43 is fixedly connected to an end of the rotating shaft 42 at one end of the grinding rollers 41, adjacent gears 43 are engaged with each other, one of the rotating shaft 42 is in transmission connection with a grinding motor 44, the four grinding rollers 41 rotate in pairs, and the two grinding rollers 41 on the same side are close to each other and rotate downward, so as to grind and press the molding sand.
In this embodiment, the material platform 45 that keeps off of machine case 1 inner wall fixed connection symmetry, the cross-section that keeps off material platform 45 is right trapezoid shape, the side that keeps off material platform 45 is equipped with the arc groove with 41 gomphosis of crushing roller, makes things convenient for the molding sand to pulverize.
In this embodiment, the vibration screening mechanism 5 includes reel 51 and screen cloth 52, screen cloth 52 and reel 51 inner wall fixed connection, the four corners below of reel 51 be equipped with quick-witted case 1 inner wall fixed connection's backup pad 53, the upper end fixed connection gag lever post 54 of backup pad 53, gag lever post 54 and reel 51 sliding connection just gag lever post 54 is located the outer lane cup joint spring 55 between reel 51 and the backup pad 53, the below of reel 51 is equipped with the eccentric component 56 with quick-witted case 1 swing joint.
In this embodiment, the eccentric assembly 56 includes symmetrical rotating rods 561, two ends of each rotating rod 561 are movably connected to the chassis 1, one end of each rotating rod 561 extends out of the chassis 1 and the end of each rotating rod 561 is fixedly connected to a belt tooth 562, the belt teeth 562 are connected to each other through a belt tooth 563, an elliptical wheel 564 contacting the bottom of the screen frame 51 is fixedly sleeved on each rotating rod 561, and one end of one rotating rod 561 is connected to the eccentric motor 565.
In this embodiment, the upper end face of the screen frame 51 is fixedly connected with the annular striker plate 57, the cross section of the annular striker plate 57 is in a right triangle shape, and the outer side face of the annular striker plate 57 is attached to the chassis 1 in a sliding manner.
In this embodiment, the magnetic separation mechanism 6 includes a plurality of parallel arrangement's magnetic separation case 61, the both ends side fixed connection draw runner 62 of magnetic separation case 61, the draw runner 62 is used for connecting a plurality of magnetic separation cases 61 as an organic whole, magnetic separation case 61 and the perpendicular both sides face of draw runner 62 are equipped with the magnetic separation mouth 63 of internal contraction, be equipped with solenoid assembly 64 in the magnetic separation case 61, draw runner 62 side is equipped with the conducting block 65 with solenoid assembly 64 electric connection in every magnetic separation case 61, the inner wall of machine case 1 is equipped with the spout 15 that corresponds with draw runner 62, conducting block 65 with connect electric mechanism 9 electric connection, the up end fixed connection triangle prism 66's of magnetic separation case 61 a side, the two lateral surfaces of magnetic separation case 61 are stretched out to two other sides of triangle prism 66, through connect electric mechanism 9 to produce magnetism to solenoid assembly 64 circular telegram, thereby adsorb the iron in the molding sand, then the outage drops iron to magnetism bottom of the case portion, and the convenience is removed iron to the molding sand after sieving.
In this embodiment, the power connection mechanism 9 includes a conductive strip 91 and a second conductive block 92, the second conductive block 92 is fixedly connected to the conductive strip 91, the conductive strip 91 is embedded in the sidewall of the chassis 1, the second conductive block 92 is embedded in the inner wall of the sliding slot 15 and electrically connected to the first conductive block 65, and the conductive strip 91 is electrically connected to a power connection plug 94 through a time relay 93.
In this embodiment, the sealing mechanism 8 includes a sealing plate 81, two ends of the sealing plate 81 are fixedly connected to ejector rods 82 corresponding to the slide bars 62, the ejector rods 82 are in close contact with end faces of the slide bars 62, outer side faces of the sealing plate 81 are fixedly connected to pull strips 83, an outer side of the case 1 located above and below the mounting opening 7 is fixedly connected to screws 84, two ends of the pull strips 83 are inserted into the screws 84, outer rings of the screws 84 are fixedly connected to locking bolts 85 to compress and fix the magnetic separation mechanism 6, and the first conductive blocks 65 and the second conductive blocks 92 are conveniently contacted and energized.
In this embodiment, the classifying screen mechanism includes a plurality of classifying screens 16 arranged in parallel and inclined, the diameter of the screen holes of the classifying screens 16 decreases gradually from top to bottom, the sand outlet 12 is located at the inclined bottom of the classifying screens 16, and the inclined directions of the sand guide plates 13 between adjacent sand outlet are opposite.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A treatment process for recycled molding sand is characterized by comprising the following steps: the method comprises the following steps:
step one, molding sand pretreatment: placing the recycled molding sand in a crusher for crushing, and cooling by flowing cold air;
step two, screening and sorting molding sand: placing the molding sand subjected to air cooling in a molding sand sieving machine for screening and classification;
step three, sand mixing: respectively mixing the recycled molding sand with adhesive and new sand according to the grade of the screened recycled molding sand to obtain new molding sand;
step four, checking: inspecting the mixed novel sand, and conveying the sand to a storage tank of a molding machine after the sand is qualified;
the molding sand sieving machine used in the process comprises a machine case, the lower end face side wall of the machine case is fixedly connected with a machine frame, the lower end of the case is provided with a frustum-shaped sand leakage opening, a crushing mechanism, a vibration screening mechanism, a magnetic separation mechanism and a classification screening mechanism are sequentially arranged in the case from top to bottom, the crushing mechanism is movably connected with a chassis, the lateral wall of the chassis above the vibrating screening mechanism is provided with a impurity removing port, the impurity removing port is provided with a sealing window, the magnetic separation mechanism is electrically connected with the case in a sliding way, and an electric connection mechanism is arranged on the outer side of the case, the machine case is provided with a mounting opening corresponding to the magnetic separation mechanism, a sealing mechanism is arranged on the mounting opening, the sand outlet is arranged on the outer side, located on the grading screening mechanism, of the side wall of the case, an inclined sand guide plate is arranged below the sand outlet, and the outer side of the sand guide plate is fixedly connected with the baffle.
2. The process for treating reclaimed molding sand according to claim 1, wherein: grinding mechanism includes four parallel spaced grinding rollers, grinding roller's both ends are through pivot and quick-witted case swing joint, grinding roller's one end pivot tip fixed connection gear, it is adjacent meshing is connected between the gear, one of them the pivot transmission is connected and is ground the motor.
3. The process for treating reclaimed molding sand according to claim 2, wherein: the inner wall of the case is fixedly connected with the symmetrical material blocking platform, the cross section of the material blocking platform is in a right-angle trapezoidal shape, and the side face of the material blocking platform is provided with an arc groove embedded with the crushing roller.
4. The process for treating reclaimed molding sand according to claim 1, wherein: the vibration screening mechanism comprises a screen frame and a screen, the screen is fixedly connected with the inner wall of the screen frame, supporting plates fixedly connected with the inner wall of the case are arranged below four corners of the screen frame, limiting rods are fixedly connected with the upper ends of the supporting plates, the limiting rods are connected with the screen frame in a sliding mode, the limiting rods are located on the outer rings between the screen frame and the supporting plates and are sleeved with springs, and eccentric assemblies movably connected with the case are arranged below the screen frame.
5. The process for treating reclaimed molding sand according to claim 4, wherein: the eccentric assembly comprises symmetrical rotating rods, the two ends of each rotating rod are movably connected with the case, one end of each rotating rod extends out of the case, the end parts of the rotating rods are fixedly connected with teeth, the teeth are connected with one another through toothed belts, an elliptical wheel in contact with the bottom of the screen frame is fixedly sleeved on each rotating rod, and one end of each rotating rod is connected with the eccentric motor.
6. The process for treating reclaimed molding sand according to claim 4, wherein: the upper end face of the screen frame is fixedly connected with the annular material baffle, the cross section of the annular material baffle is in a right-angled triangle shape, and the outer side face of the annular material baffle is in sliding connection with the chassis in a fitting mode.
7. The process for treating reclaimed molding sand according to claim 1, wherein: magnetic separation mechanism includes a plurality of parallel arrangement's magnetic separation case, the both ends side fixed connection draw runner of magnetic separation case, the draw runner is used for connecting a plurality of magnetic separation cases as an organic whole, magnetic separation case and draw runner vertically both sides face are equipped with the magnetic separation mouth of internal contraction, the magnetic separation incasement is equipped with solenoid assembly, the draw runner side be equipped with every magnetic separation incasement solenoid assembly electric connection's conducting block one, the inner wall of machine case is equipped with the spout that corresponds with the draw runner, conducting block one with connect electric connection of electric mechanism.
8. The process for treating reclaimed molding sand according to claim 7, wherein: the power connection mechanism comprises a conductive bar and a second conductive block, the second conductive block is fixedly connected with the conductive bar, the conductive bar is embedded and installed on the side wall of the case, the second conductive block is embedded and installed on the inner wall of the sliding groove and electrically connected with the first conductive block, and the conductive bar is electrically connected with the power connection plug through a time relay.
9. The process for treating reclaimed molding sand according to claim 7, wherein: the sealing mechanism comprises a sealing plate, two ends of the sealing plate are fixedly connected with ejector rods corresponding to the sliding strips, the ejector rods are in close contact with end faces of the sliding strips, the outer side face of the sealing plate is fixedly connected with pull strips, the outer side of the case is located above and below the mounting port and is fixedly connected with screw rods, two ends of the pull strips are connected with the screw rods in an inserting mode, and the outer ring of the screw rods is fixedly connected with locking bolts.
10. The process for treating reclaimed molding sand according to claim 1, wherein: the grading screening mechanism comprises a plurality of grading screens which are obliquely arranged in parallel, the diameters of screen holes of the grading screens are gradually reduced from top to bottom, the sand outlet is positioned at the oblique bottom of the grading screens, and the oblique directions of the sand guide plates between adjacent sand outlets are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110254235.3A CN113000784A (en) | 2021-03-05 | 2021-03-05 | Treatment process for recycled molding sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110254235.3A CN113000784A (en) | 2021-03-05 | 2021-03-05 | Treatment process for recycled molding sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113000784A true CN113000784A (en) | 2021-06-22 |
Family
ID=76402594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110254235.3A Withdrawn CN113000784A (en) | 2021-03-05 | 2021-03-05 | Treatment process for recycled molding sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113000784A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101578A (en) * | 2021-11-29 | 2022-03-01 | 和县科嘉阀门铸造有限公司 | Recovery unit of molding sand for foundry goods |
| CN114887895A (en) * | 2022-05-26 | 2022-08-12 | 芦世云 | Granule device that sieves |
-
2021
- 2021-03-05 CN CN202110254235.3A patent/CN113000784A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101578A (en) * | 2021-11-29 | 2022-03-01 | 和县科嘉阀门铸造有限公司 | Recovery unit of molding sand for foundry goods |
| CN114101578B (en) * | 2021-11-29 | 2024-03-12 | 和县科嘉阀门铸造有限公司 | Recovery unit of molding sand for foundry goods |
| CN114887895A (en) * | 2022-05-26 | 2022-08-12 | 芦世云 | Granule device that sieves |
| CN114887895B (en) * | 2022-05-26 | 2024-01-12 | 临沂联承新材料科技有限公司 | Granule sieving device |
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Application publication date: 20210622 |
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| WW01 | Invention patent application withdrawn after publication |