CN220295794U - Optimized structure of sand silo breathing port in casting pneumatic sand conveying system - Google Patents
Optimized structure of sand silo breathing port in casting pneumatic sand conveying system Download PDFInfo
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- CN220295794U CN220295794U CN202321911768.5U CN202321911768U CN220295794U CN 220295794 U CN220295794 U CN 220295794U CN 202321911768 U CN202321911768 U CN 202321911768U CN 220295794 U CN220295794 U CN 220295794U
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- Prior art keywords
- sand
- silo
- filter cloth
- needled felt
- felt filter
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- 239000004576 sand Substances 0.000 title claims abstract description 76
- 238000005266 casting Methods 0.000 title claims abstract description 13
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims description 19
- 239000004744 fabric Substances 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims description 7
- 238000005457 optimization Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Air Transport Of Granular Materials (AREA)
Abstract
The utility model provides an optimized structure of a suction port of a sand silo in a casting pneumatic sand conveying system, wherein a silo pump is connected to the sand silo through a sand conveying pipeline, the side wall of the sand silo is provided with the suction port, the top of the sand silo is communicated with a buffer box, an exhaust pipeline arranged on the buffer box is communicated with a bag dust remover, the inner wall of the sand silo at the joint of the suction port and the sand silo is provided with a needled felt filter cloth, the upper end of the needled felt filter cloth is fixed, and the lower end of the needled felt filter cloth hangs down and shields the suction port. The utility model adopts needled felt filter cloth to realize the function of the original pneumatic valve, has lower cost, is not easy to be blocked by sand grains, and can keep the system to stably run for a long time.
Description
Technical Field
The utility model relates to a sand silo breathing port structure in a casting pneumatic sand conveying system.
Background
The applicant has previously filed a prior patent, and is a casting pneumatic sand conveying system, as shown in fig. 1, a bin pump 1 is connected to a sand bin 3 through a sand conveying pipeline 2, a respiration port 5 with a pneumatic valve 4 is arranged on the side wall of the sand bin 3, a buffer box 6 is communicated with the top of the sand bin 3, and an exhaust pipeline 7 is arranged on the buffer box 6 and is communicated with a bag-type dust collector (not shown).
When the bin pump 1 operates, positive pressure is arranged in the sand bin 3, the pneumatic valve 4 is closed at the moment, high-pressure dust gas is smoothly discharged from the exhaust pipeline 7 and is discharged into the atmosphere after dust removal treatment; when the bin pump 1 is stopped, the bag-type dust collector still operates, so that negative pressure appears in the sand bin 3, at the moment, the pneumatic valve 4 is actively opened, external air is allowed to enter the sand bin 3 to balance air pressure, and sand falling of the sand bin 3 is avoided.
However, since the pneumatic valve 4 is frequently opened and closed and the sand feeding environment is complex, the pneumatic valve 4 is often leaked or damaged after a period of operation, which affects the sand feeding process.
Disclosure of Invention
The utility model aims to improve the existing casting pneumatic sand conveying system and solve the problem of air leakage or damage of a pneumatic valve.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an optimization structure of sand silo breathe mouth in sand system is sent to casting strength, and bin pump is connected to sand silo through sending sand pipeline, and sand silo lateral wall is equipped with breathes mouth, and sand silo top intercommunication has the buffer tank, and the exhaust pipeline that the buffer tank was equipped with communicates to sack cleaner, its characterized in that:
the inner wall of the sand bin at the joint of the breathing port and the sand bin is provided with a needled felt filter cloth, the upper end of the needled felt filter cloth is fixed, and the lower end of the needled felt filter cloth hangs down and shields the breathing port.
The optimization structure of the suction port of the sand silo in the casting pneumatic sand conveying system comprises the following components: the upper end of the needled felt filter cloth is pressed on the side wall of the sand silo by a pressing strip, and the pressing strip is fixed by a fastener.
The optimization structure of the suction port of the sand silo in the casting pneumatic sand conveying system comprises the following components: the needled felt filter cloth leaves at least 150mm shielding allowance on the upper part, the lower part, the left part and the right part of the breathing hole.
The utility model adopts needled felt filter cloth to realize the function of the original pneumatic valve, has lower cost, is not easy to be blocked by sand grains, and can keep the system to stably run for a long time.
Drawings
FIG. 1 is a schematic diagram of a prior art foundry pneumatic sand conveying system.
FIG. 2 is a schematic plan view of the optimized construction of the suction port of the sand silo of the present utility model.
Fig. 3 is a schematic side view of the optimized structure of the suction port of the sand silo of the present utility model (closed state).
Fig. 4 is a schematic side view of the optimized structure of the suction port of the sand silo of the present utility model (opened state).
Reference numerals illustrate: a bin pump 1; a sand feeding pipeline 2; a sand bin 3; a pneumatic valve 4; a breathing port 5; a buffer box 6; an exhaust line 7; needling felt filter cloth 8; a pressing bar 9; a fastener 10.
Detailed Description
The utility model provides a casting pneumatic sand conveying system, which comprises a basic structure shown in figure 1, wherein a bin pump 1 is connected to a sand bin 3 through a sand conveying pipeline 2, a respiration port 5 with an improved structure is arranged on the side wall of the sand bin 3, a buffer box 6 is communicated with the top of the sand bin 3, and an exhaust pipeline 7 is arranged on the buffer box 6 and is communicated with a bag-type dust remover;
as shown in fig. 2 to 4, the structure of the breathing opening 5 after the improvement is that a needled felt filter cloth 8 is arranged on the inner wall of the sand silo 3 at the joint of the breathing opening 5 (without a pneumatic valve) and the sand silo 3, the upper end of the needled felt filter cloth 8 is pressed on the side wall of the sand silo by a pressing strip 9, the lower end is suspended and shields the breathing opening 5, and the pressing strip 9 is fixed by a fastener 10 such as a bolt.
As shown in fig. 2, after the needled felt filter cloth 8 shields the breathing openings 5, a shielding margin of at least 150mm is left above, below, left and right of the breathing openings 5.
The use condition of the utility model is as follows:
when sand is sent, the interior of the sand bin 3 is at 0.4Mpa of instantaneous positive pressure, the needled felt filter cloth 8 is pressed to the inner wall of the sand bin 3 and is tightly attached to block the breathing port 5 (shown in figure 3), and the higher the pressure is, the more tightly the blocking is; in addition, when the pressure is positive, the needled felt filter cloth 8 can release part of clean gas, so that the load of the exhaust pipeline 7 is reduced;
when sand is not sent, under the suction of a fan of the bag-type dust collector, a negative pressure environment is arranged in the sand bin 3, the needled felt filter cloth 8 is automatically opened under the action of the negative pressure (as shown in figure 4), and air enters the sand bin 3 from the breathing port 5 to supplement the negative pressure;
in the whole process, the needled felt filter cloth 8 realizes the function of the original pneumatic valve, has lower cost, is not easy to be blocked by sand grains, and can keep the system to stably run for a long time.
Claims (3)
1. The utility model provides an optimization structure of sand silo breathe mouth in sand system is sent to casting strength, and bin pump is connected to sand silo through sending sand pipeline, and sand silo lateral wall is equipped with breathes mouth, and sand silo top intercommunication has the buffer tank, and the exhaust pipeline that the buffer tank was equipped with communicates to sack cleaner, its characterized in that:
the inner wall of the sand bin at the joint of the breathing port and the sand bin is provided with a needled felt filter cloth, the upper end of the needled felt filter cloth is fixed, and the lower end of the needled felt filter cloth hangs down and shields the breathing port.
2. The optimizing structure of the suction port of the sand silo in the pneumatic sand conveying system for casting according to claim 1, wherein: the upper end of the needled felt filter cloth is pressed on the side wall of the sand silo by a pressing strip, and the pressing strip is fixed by a fastener.
3. The optimizing structure of the suction port of the sand silo in the pneumatic sand conveying system for casting according to claim 1, wherein: the needled felt filter cloth leaves at least 150mm shielding allowance on the upper part, the lower part, the left part and the right part of the breathing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321911768.5U CN220295794U (en) | 2023-07-19 | 2023-07-19 | Optimized structure of sand silo breathing port in casting pneumatic sand conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321911768.5U CN220295794U (en) | 2023-07-19 | 2023-07-19 | Optimized structure of sand silo breathing port in casting pneumatic sand conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220295794U true CN220295794U (en) | 2024-01-05 |
Family
ID=89351514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321911768.5U Active CN220295794U (en) | 2023-07-19 | 2023-07-19 | Optimized structure of sand silo breathing port in casting pneumatic sand conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220295794U (en) |
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2023
- 2023-07-19 CN CN202321911768.5U patent/CN220295794U/en active Active
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