CN203529200U - Negative pressure stock bin for powder storage and level indicator thereof - Google Patents
Negative pressure stock bin for powder storage and level indicator thereof Download PDFInfo
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- CN203529200U CN203529200U CN201320287821.9U CN201320287821U CN203529200U CN 203529200 U CN203529200 U CN 203529200U CN 201320287821 U CN201320287821 U CN 201320287821U CN 203529200 U CN203529200 U CN 203529200U
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- negative pressure
- stock bin
- level
- sensing device
- pressure stock
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Abstract
The application provides a level indicator of a negative pressure stock bin for power storage, which comprises a round tube which is inclined downwards on the side wall of the negative pressure stock bin, wherein a flexible extension-type sealing device is disposed at the lower port of the round tube ; and a supporting frame is also disposed on the round tube, wherein a detector is disposed on the supporting frame and the detector detects inner sinking or outer protruding of the flexible extension-type sealing device to judge whether there are materials inside the negative pressure stock bin. The simple level indicator in the utility model is applicable to an environment that the stock bin has inner negative pressure and inner powder has strong liquidity and can realize accurate detection of material level height. The detection device is simple in structure and low in manufacturing cost.
Description
Technical field
The utility model relates to a kind of level-sensing device, relates in particular to a kind of for storing negative pressure stock bin and the level-sensing device thereof of powder.
Background technology
In gypsum board manufacture, production and the storage of gesso are crucial steps conventionally, and especially the storage condition of gesso has determined the follow-up production of making sheet line, and gesso is stored in the closed bin of 5 meters highly approximately 7.5 meters of diameters conventionally at present.
At present, the domestic material level of applying in this type of closed bin is in respect of radio frequency admittance level-sensing device, radar type level-sensing device, blocking rotary type level-sensing device etc., but due to easy buildup on radio frequency admittance level-sensing device material-height exploring bar; Radar type level-sensing device has requirement for environment for use, and in storehouse during guide, occurs the phenomenon of dust boiling in storehouse; Blocking rotary type level-sensing device is for features such as strong flowing power light material cannot have effect, therefore above-mentioned level-sensing device all causes the fault rate of detection higher in varying degrees, simultaneously, above level-sensing device price is comparatively expensive, the in the situation that of needing to install many places material level detection on a bulkhead, can significantly increase installation cost.
Utility model content
It is a kind of for storing the level-sensing device of the negative pressure stock bin of powder, comprise the downward-sloping pipe being arranged on described negative pressure stock bin sidewall that the application provides, and the lower port of described pipe is provided with flexible expandable sealing arrangement;
On described pipe, be also provided with bracing frame, be provided with detector on support frame as described above, described detector is by detecting described flexible expandable sealing arrangement generation concave or convex, to judge whether there is material in described negative pressure stock bin.
Preferably, described detector comprises elastic sheet metal, hard metal sheet, power supply and Programmable Logic Controller, described hard metal sheet is arranged on the outside of described flexible expandable sealing arrangement, and described elastic sheet metal is being arranged between described detection flexible expandable sealing arrangement and described hard metal sheet; Described Programmable Logic Controller is connected with the both positive and negative polarity of described power supply by described elastic sheet metal, hard metal sheet respectively.
Preferably, described Programmable Logic Controller is during according to described flexible expandable sealing arrangement generation evagination, promote described elastic sheet metal to described hard metal bending tablet and be in contact with one another, and receiving after the electric signal of circuit communication, thereby judging in described negative pressure stock bin have material;
Described Programmable Logic Controller is during according to described flexible expandable sealing arrangement generation indent, and described elastic sheet metal leaves described hard metal sheet, and receives after the electric signal that circuit disconnects, thereby judges in described negative pressure stock bin without material.
Preferably, between described elastic sheet metal and support frame as described above, between described hard metal sheet and described elastic sheet metal, be provided with insulating segment.
Preferably, described flexible expandable sealing arrangement comprises sealing film.
Preferably, the angle of described pipe and horizontal surface is at 15-30 °.
Preferably, described pipe length is 2-3 centimetre, and diameter is 2-3 cun.
Preferably, above described detector, be provided with fan or the air blower that purges dust.
It is a kind of for storing the negative pressure stock bin of powder that the utility model also provides, and it comprises above-mentioned level-sensing device.
Preferably, described negative pressure cabin main body is provided with first passage and second channel, and described first passage is connected with described cloth bag collection machine, and described second channel is connected with roots blower.
Compare with relevant technologies, the beneficial effect of the utility model embodiment is as follows:
The level-sensing device of the utility model embodiment, comprises the downward-sloping pipe being arranged on negative pressure stock bin sidewall, and the lower port of pipe is provided with flexible expandable sealing arrangement; The fan of the detector bracing frame welding on pipe, the signal detector being formed by hard steel disc and elastic steel sheet and detector top, like this can detector by detecting flexible expandable sealing arrangement generation concave or convex, judge in negative pressure stock bin, whether there is material.The simple and easy level-sensing device of the utility model embodiment is applicable to feed bin and has the environment that internal negative pressure, inner powder have strong flowing power, can realize accurate detection controlling level, and structure of the detecting device is simple, cheap.
Accompanying drawing explanation
Fig. 1 be the utility model embodiment for storing the schematic diagram of the negative pressure stock bin of powder;
Fig. 2 is level-sensing device installation site figure enlarged diagram in Fig. 1 of the utility model embodiment;
Reference numeral: 1-negative pressure stock bin, 11-first passage, 12-second channel, 2-detector, 21-pipe, 22-flexible expandable sealing arrangement, 23-bracing frame, 24-elastic sheet metal, 25-hard metal sheet, 26-insulating segment, 27-fan
The specific embodiment
Hereinafter in connection with accompanying drawing, embodiment of the present utility model is elaborated.It should be noted that, in the situation that not conflicting, the embodiment in the application and the feature in embodiment be combination in any mutually.
As shown in Figure 1, the top of negative pressure stock bin 1 sidewall in the utility model embodiment is provided with downward-sloping pipe 21.At the top of negative pressure stock bin 1, be also provided with first passage 11 and second channel 12, second channel 12 is material filling mouth, outer portion guide roots blower is blown into feed bin by gesso, first passage 11 is the feed bin mouth that gathers dust, the outside air inducing of blower fan by bag dust collector, but the air output of first passage 11 is more bigger than the intake of second channel 12, keep being negative pressure state in storehouse, prevent storehouse material top overflow.By second channel 12, entered the gesso typical temperature of negative pressure stock bin 1 more than 30 degrees Celsius, there is strong flowing power.
As shown in Figure 2, in the present embodiment, level-sensing device comprises the downward-sloping pipe 21 on negative pressure stock bin sidewall.Pipe 21 can adopt stainless steel tube.Pipe 21 is fixed on negative pressure stock bin 1 sidewall and with negative pressure stock bin 1 inside and is connected, and pipe 21 diameters are 2-3 cun, and length is between 2-3 centimetre, pipe 21 downward-sloping and with the angle of horizontal surface be 15-30 degree (as angle α in Fig. 2).As convertible embodiment, pipe 21 also adopts the tubing of other metal material.
The lower port of pipe 21 is provided with flexible expandable sealing arrangement 22, and flexible expandable sealing arrangement 22 can be for comprising sealing film.The end face of pipe 21 end ports of take is basal plane, and sealing arrangement can be from basal plane evagination and indent more than 1 centimetre.
On pipe 21, be provided with bracing frame 23, bracing frame 23 can be provided with detector 2.Detector 2 comprises elastic sheet metal 24, hard metal sheet 25, power supply and Programmable Logic Controller.Elastic sheet metal 24 is elastic steel sheet, and hard metal sheet 25 is hard steel disc.Hard metal sheet 25 is arranged on the outside of flexible expandable sealing arrangement 22, and elastic sheet metal 24 is being arranged between flexible expandable sealing arrangement 22 and hard metal sheet 25; Programmable Logic Controller is connected with the both positive and negative polarity of power supply by elastic sheet metal 24, hard metal sheet 25 respectively.The plane of pipe 21 ports of take is basal plane, and flexible expandable sealing arrangement 22 convex or concaves are more than 1 centimetre, and basal plane and elastic sheet metal 24 distances be 0.5-1 centimetre, and the distance of elastic sheet metal 24 and hard metal sheet 25 is 0.5-1 centimetre.Wherein between bracing frame 23 and elastic sheet metal 24, between elastic sheet metal 24 and hard metal sheet 25, bracing frame 23 all has insulating segment 26.
As disposable way of example, elastic sheet metal 24 can elastic steel sheet, also can adopt other to have elastomeric metallic material, and hard metal sheet 25 can hard steel disc, also can adopt other metallic material.
The working process of negative pressure stock bin and level-sensing device is as follows:
Material level position in negative pressure stock bin 1 is during higher than pipe 21, powder enters pipe 21 by Action of Gravity Field from negative pressure stock bin 1, and oppress flexible expandable sealing arrangement 22 and move to elastic sheet metal 24 directions, elastic sheet metal 24 is contacted with hard metal sheet 25, at elastic sheet metal 24, be connected with the both positive and negative polarity of 24V direct supply respectively with hard metal sheet 25, electric signal conducting, just can judge that " there is material position " for this reason after this electric signal is sent into Programmable Logic Controller and identified;
Material level position in negative pressure stock bin 1 is during lower than pipe 21, owing to being negative pressure state in storehouse, internal gas flow can flow to negative pressure stock bin 1 from pipe 21, powder enters in negative pressure stock bin 1 from pipe 21, flexible expandable sealing arrangement 22 meeting negative pressure stock bin 1 sunken insides, make elastic sheet metal 24 throw off hard metal sheet 25, at elastic sheet metal 24 and hard metal sheet 25, disconnect with the circuit of 24V direct supply, electric signal disconnects, now, Programmable Logic Controller just can judge this position " without material " after identifying.
Although the disclosed embodiment of the utility model as above, the embodiment that described content just adopts for the ease of understanding the utility model, not in order to limit the utility model.Technical personnel under any the utility model in technical field; do not departing under the prerequisite of the disclosed spirit and scope of the utility model; can do any modification and variation what implement in form and in details; but scope of patent protection of the present utility model, still must be as the criterion with the scope that appending claims was defined.
Claims (10)
1. for storing a level-sensing device for the negative pressure stock bin of powder, it is characterized in that, comprise the downward-sloping pipe being arranged on described negative pressure stock bin sidewall, the lower port of described pipe is provided with flexible expandable sealing arrangement;
On described pipe, be also provided with bracing frame, be provided with detector on support frame as described above, described detector is by detecting described flexible expandable sealing arrangement generation concave or convex, to judge whether there is material in described negative pressure stock bin.
2. level-sensing device according to claim 1, wherein, described detector comprises elastic sheet metal, hard metal sheet, power supply and Programmable Logic Controller, described hard metal sheet is arranged on the outside of described flexible expandable sealing arrangement, and described elastic sheet metal is being arranged between described detection flexible expandable sealing arrangement and described hard metal sheet; Described Programmable Logic Controller is connected with the both positive and negative polarity of described power supply by described elastic sheet metal, hard metal sheet respectively.
3. level-sensing device according to claim 2, wherein, described Programmable Logic Controller is during according to described flexible expandable sealing arrangement generation evagination, promote described elastic sheet metal to described hard metal bending tablet and be in contact with one another, and receive after the electric signal of circuit communication, thereby judge in described negative pressure stock bin have material;
Described Programmable Logic Controller is during according to described flexible expandable sealing arrangement generation indent, and described elastic sheet metal leaves described hard metal sheet, and receives after the electric signal that circuit disconnects, thereby judges in described negative pressure stock bin without material.
4. level-sensing device according to claim 2, wherein, between described elastic sheet metal and support frame as described above, be provided with insulating segment between described hard metal sheet and described elastic sheet metal.
5. according to the level-sensing device described in any one in claim 1-4, wherein, described flexible expandable sealing arrangement comprises sealing film.
6. according to the level-sensing device described in any one in claim 1-4, wherein, the angle of described pipe and horizontal surface is at 15-30 °.
7. according to the level-sensing device described in any one in claim 1-4, wherein, described pipe length is 2-3 centimetre, and diameter is 2-3 cun.
8. according to the level-sensing device described in any one in claim 1-4, wherein, above described detector, be provided with the fan or the air blower that purge dust.
9. for storing a negative pressure stock bin for powder, it is characterized in that, comprise the level-sensing device as described in any one in claim 1-8.
10. negative pressure stock bin according to claim 9, wherein, described negative pressure cabin main body is provided with first passage and second channel, and described first passage is connected with described cloth bag collection machine, and described second channel is connected with roots blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320287821.9U CN203529200U (en) | 2013-05-23 | 2013-05-23 | Negative pressure stock bin for powder storage and level indicator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320287821.9U CN203529200U (en) | 2013-05-23 | 2013-05-23 | Negative pressure stock bin for powder storage and level indicator thereof |
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| Publication Number | Publication Date |
|---|---|
| CN203529200U true CN203529200U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320287821.9U Expired - Fee Related CN203529200U (en) | 2013-05-23 | 2013-05-23 | Negative pressure stock bin for powder storage and level indicator thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112079075A (en) * | 2020-09-01 | 2020-12-15 | 天津铁厂有限公司 | Method for controlling ash discharge of charge level indicator based on negative pressure drive |
-
2013
- 2013-05-23 CN CN201320287821.9U patent/CN203529200U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112079075A (en) * | 2020-09-01 | 2020-12-15 | 天津铁厂有限公司 | Method for controlling ash discharge of charge level indicator based on negative pressure drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215433 No. 2, GCL Middle Road, Taicang Port Development Zone, Suzhou, Jiangsu Patentee after: Beixin building materials (Suzhou) Co.,Ltd. Address before: 215433 No. 2, GCL Middle Road, Taicang Port Development Zone, Suzhou, Jiangsu Patentee before: BNBM Taicang Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |