CN219884669U - Storage bin capable of preventing powder bridging - Google Patents
Storage bin capable of preventing powder bridging Download PDFInfo
- Publication number
- CN219884669U CN219884669U CN202320679863.0U CN202320679863U CN219884669U CN 219884669 U CN219884669 U CN 219884669U CN 202320679863 U CN202320679863 U CN 202320679863U CN 219884669 U CN219884669 U CN 219884669U
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- China
- Prior art keywords
- bin
- powder
- pipe
- blowing pipe
- feed
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Links
- 239000000843 powder Substances 0.000 title claims abstract description 59
- 238000003860 storage Methods 0.000 title claims description 8
- 238000007664 blowing Methods 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 230000004580 weight loss Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 239000006052 feed supplement Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 208000016261 weight loss Diseases 0.000 description 4
- 238000005303 weighing Methods 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The utility model relates to the technical field of material processing equipment, and particularly discloses a feed bin for preventing powder bridging. The utility model has low manufacturing and installation cost and simple structure; according to the utility model, the back-blowing air pipe is used for introducing air into the powder bin, so that the powder bridging in the bin can be damaged, and the weight loss scale and the shutdown faults of the extruder caused by the bridging of the bin can be greatly reduced.
Description
Technical Field
The utility model relates to the technical field of material processing equipment, in particular to a storage bin capable of preventing powder bridging.
Background
The extruder weightless balance is in operation process powder through feed bin and weightless balance feed jointly continuously, and feed bin needs to throw the material in advance in order to guarantee weightless balance feed demand at any time in normal production process, and when weightless balance feed bin powder weight reaches the lower limit, the feed supplement valve is opened, and powder is supplied to weightless balance feed bin from the powder bin through the feed supplement valve until the powder weight of weightless balance feed bin reaches the upper limit, can give the pneumatic hammer solenoid valve signal simultaneously in the feed supplement process, and the feed supplement process pneumatic hammer is in the open state, and the pneumatic hammer is closed at the end of the feed supplement.
The weightless balance can start the air hammer when the feed supplement, and the air hammer vibration process helps the smooth feed supplement of powder storehouse but can cause the inside powder of powder storehouse inseparabler thereby the later condition that causes the bridge again. The bridge is put on to the inside powder of powder feed bin, can't in time carry out the feed supplement to weightlessness balance. The bridging reasons of the powder in the powder bin are mostly related to the physical properties of the powder, some of the powder is added with liquid auxiliary agents, and some of the powder has poor fluidity; when bridging, the powder cannot be fed or the feeding quantity is small, and the weight of the powder in the weight-loss scale bin cannot be fed to the upper limit in the set time to alarm the stop, so that the whole production line is stopped in a linkage way.
Therefore, the problem of powder bridging in the powder bin is very necessary to be solved.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a storage bin capable of preventing powder bridging so as to solve the problem of powder bridging.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a can prevent feed bin of powder bridging, includes feeder hopper and powder storehouse, the powder storehouse sets up in the feeder hopper below, set up at least one blowback pipe on the bottom inner wall inclined plane of powder storehouse.
Preferably, the diameter of the blowback pipe is 5-10mm.
Preferably, the back blowing pipe is a copper pipe.
Preferably, the back blowing pipe main body is parallel to the inclined plane of the inner wall of the bottom of the powder bin.
Preferably, the upper end and the lower end of the back blowing pipe are respectively provided with an elbow, and the included angle between the elbow and the inclined plane of the inner wall at the bottom of the storage bin is 30-45 degrees.
Preferably, the blowback pipe includes air intake and air outlet, blowback pipe upper end return bend is provided with the air intake, blowback pipe lower extreme return bend is provided with the air outlet.
Furthermore, the air outlet faces the inclined plane of the inner wall of the bottom of the powder bin, and the air outlet cannot be blown to the discharge hole of the bin.
Preferably, the air inlet of the back blowing pipe is provided with an air pipe quick connector, and an air source is introduced in a time circulation control mode.
Preferably, the bottom end of the powder bin is provided with a feed supplementing valve.
Preferably, the silo further comprises a time cycle control device.
The time circulation control device comprises a time relay (KT), a coil (KA), a delayed closed normally open contact (KT), a normally open contact (KA) and a two-position five-way electromagnetic valve (YV). When the time circulation control device receives a weight loss scale feeding signal, the two-position five-way electromagnetic valve YV is controlled to circulate intermittent gas to the blowback pipe through the circulation control normally-open contact (KA).
The working process comprises the following steps:
the powder position must be guaranteed at any time to exceed low material level in whole start-up in-process inside the powder feed bin, and when weighing system feed bin weight reaches the lower limit, time circulation controlling means receives weightless balance feed supplement signal, and after the weightless balance begins the feed supplement, time circulation controlling means also begins to start, provides intermittent air supply to the copper pipe through the control of circulation normally open contact control two-position five-way solenoid valve, blows and upwards rebound in order to destroy the powder bridging inside the feed bin against the inner wall after gas arrives inside the feed bin.
Compared with the background technology, the technical proposal has the following advantages:
1. according to the utility model, the back-blowing air pipe is used for introducing air into the powder bin, so that the powder bridging in the bin can be damaged, and the weight loss scale and the shutdown faults of the extruder caused by the bridging of the bin can be greatly reduced;
2. the utility model has low manufacturing and installation cost, simple structure and obvious effect.
Drawings
The utility model is further described below with reference to the drawings and examples.
FIG. 1 is a schematic view of a bin structure for preventing bridging of powder according to an embodiment,
wherein, 1-powder bin, 2-feed supplement valve, 3-back blow pipe, 31-upper end elbow, 311-air inlet, 312-air pipe quick connector, 32-lower end elbow, 321-air outlet, 4-air source, 5-air hammer, 6-feed hopper, 61-air outlet, 62-feed inlet, 7-time cycle control device;
FIG. 2 is a schematic diagram showing the electrical control of a time cycle controller in a bin structure for preventing bridging of powder according to an embodiment,
the device comprises a 71-time relay, a 72-coil, a 73-delay closed normally open contact, a 74-normally open contact and a 75-two-position five-way electromagnetic valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and examples, and the present embodiment may have various forms and should not be construed as being limited to the descriptions set forth herein. Like reference numerals refer to like elements throughout, and like reference numerals refer to like elements.
As shown in fig. 1, the feed bin for preventing powder bridging comprises a feed hopper 6 and a powder bin 1, wherein the powder bin 1 is arranged below the feed hopper 6, and a blowback pipe 3 is arranged on the inclined surface of the inner wall of the bottom of the powder bin 1. The feed supplement valve 2 is arranged at the bottom end of the powder bin 1. The feed hopper 6 comprises an exhaust port 61 and a feed opening 62. The back blowing pipe 3 is a copper pipe with the diameter of 8mm, the main body of the back blowing pipe 3 is parallel to the inclined plane of the inner wall at the bottom of the powder bin 1, the upper end and the lower end of the back blowing pipe are respectively provided with an elbow, and the included angle between the elbow and the inclined plane of the inner wall at the bottom of the bin is 30-45 degrees. The upper end elbow 31 of the back-blowing pipe 3 is provided with an air inlet 311, and the lower end elbow 32 of the back-blowing pipe is provided with an air outlet 321. The air outlet 321 faces the inclined surface of the inner wall of the bottom of the powder storage bin 1. An air pipe quick connector 312 is arranged at the air inlet 311 of the back blowing pipe 3 and is connected with the air source 4. The storage bin also comprises a time circulation control device 7, and the air source 4 is introduced in a time circulation control mode.
As shown in fig. 2, the time cycle control device 7 includes a time relay 71, a coil 72, a delayed closed normally open contact 73, a normally open contact 74, and a two-position five-way solenoid valve 75. When the time circulation control device 7 receives a weight loss scale feeding signal, the two-position five-way electromagnetic valve 75 is controlled to circulate a discontinuous air source to the blowback pipe 1 through the circulation control normally-open contact 74.
The powder position must be ensured to exceed the low material level at any time in the whole starting process in the powder bin 1, when the weight of the bin of the weighing system reaches the lower limit, the time circulation control device 7 receives a material supplementing signal of the weightless scale, and after the weightless scale begins to supplement materials, the time circulation control device 7 also begins to start and control the two-position five-way electromagnetic valve 75 to provide a discontinuous (starting time is 1 second and stopping time is 2 seconds) air source for the back blowing pipe, and after the air enters the bin, the air blows against the inner wall to rebound upwards so as to destroy powder bridging in the bin.
The foregoing description is only illustrative of the preferred embodiments of the present utility model, and therefore should not be taken as limiting the scope of the utility model, for all changes and modifications that come within the meaning and range of equivalency of the claims and specification are therefore intended to be embraced therein.
Claims (1)
1. The feed bin capable of preventing powder bridging comprises a feed hopper and a powder bin, and is characterized in that the powder bin is arranged below the feed hopper, and at least one back blowing pipe is arranged on the inclined surface of the inner wall of the bottom of the powder bin; the diameter of the back blowing pipe is 5-10mm; the back blowing pipe is a copper pipe; the back blowing pipe main body is parallel to the inner wall of the inclined plane at the bottom of the powder bin; the upper end and the lower end of the back-blowing pipe are respectively provided with an elbow, and the included angle between the elbow and the inclined plane of the inner wall at the bottom of the storage bin is 30-45 degrees; the upper end bent pipe of the back blowing pipe is provided with an air inlet, and the lower end bent pipe of the back blowing pipe is provided with an air outlet; the air outlet faces to the inclined plane of the inner wall of the bottom of the powder bin; the air inlet of the back-blowing pipe is provided with an air pipe quick connector which is connected with an air source; the bottom end of the powder bin is provided with a feed supplementing valve; the bin also comprises a time circulation control device, wherein the time circulation control device comprises a time relay, a coil, a delayed closed normally open contact, a normally open contact and a two-position five-way electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320679863.0U CN219884669U (en) | 2023-03-31 | 2023-03-31 | Storage bin capable of preventing powder bridging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320679863.0U CN219884669U (en) | 2023-03-31 | 2023-03-31 | Storage bin capable of preventing powder bridging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219884669U true CN219884669U (en) | 2023-10-24 |
Family
ID=88412066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320679863.0U Active CN219884669U (en) | 2023-03-31 | 2023-03-31 | Storage bin capable of preventing powder bridging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219884669U (en) |
-
2023
- 2023-03-31 CN CN202320679863.0U patent/CN219884669U/en active Active
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