CN201413181Y - Spiral weighing system - Google Patents
Spiral weighing system Download PDFInfo
- Publication number
- CN201413181Y CN201413181Y CN2009201495400U CN200920149540U CN201413181Y CN 201413181 Y CN201413181 Y CN 201413181Y CN 2009201495400 U CN2009201495400 U CN 2009201495400U CN 200920149540 U CN200920149540 U CN 200920149540U CN 201413181 Y CN201413181 Y CN 201413181Y
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- China
- Prior art keywords
- spiral
- weighing
- storehouse
- metering
- storage bin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Control Of Conveyors (AREA)
Abstract
The utility model discloses a spiral weighing system which is connected with a manual gate valve, a storing bin, a spiral feeding machine, a feeding scraper-trough conveyer, a weighing bin, a meteringspiral, a spiral conveyor and a discharging port connected in sequence from up to bottom. The spiral weighing system also comprises a variable frequency controller for controlling the spiral feedingmachine; the variable frequency controller is arranged in a control cabinet of a metering system; the feeding hopper and the metering spiral adopt soft connection; the port of the discharging port adopts soft connection; the spiral feeding machine is lifted above the storing bin or is fixed by an additionally arranged bracket; the storing bin or the bracket is independent from the spiral feeding machine. The system sealing structure prevents powder materials from flying outwards, is used for continuous and dynamic metering of the powder materials, is a novel quantitative feeding device with automatic control feeding quantity, and can be widely applied to cement finished products, cement raw materials, lime powder and flyash, grain processing and the like with strict environmental requirements.
Description
Technical field
The utility model relates to a kind of weighing system, particularly a kind of spiral weighing system of weighing at granular material in the course of conveying.
Background technology
At present the equipment of weighing at the material in the course of conveying is more, but most of weighing equipment or seal, for granular material, can cause environmental pollution, material spilling and wastes and weighing is forbidden, and can be subjected to the influence of air humidity etc.; Can not automatic ration control feed in raw material complex operation.
The utility model content
The purpose of this utility model just is to provide a kind of novel, airtight, dosing weighing system that can address the above problem.
To achieve these goals, the technical solution adopted in the utility model is such: comprise manual push-pull valve, storage bin, screw feeder, the charging scraper-trough conveyer, the storehouse of weighing, metering screw, spiral conveyer and discharging opening, also comprise the frequency-variable controller that is used to control screw feeder, frequency-variable controller is installed in the MEASUREMENT SYSTEM CONTROL cabinet, wherein manually push-pull valve is positioned at the storage bin upper end, the storage bin lower end connects the charging scraper-trough conveyer successively, the storehouse of weighing, weigh and metering screw is set in the storehouse, the storehouse outlet of weighing connects spiral conveyer and discharging opening successively, and the storage bin inlet connects screw feeder; Adopt between charging flaw and the metering screw to be flexible coupling, the discharging opening port adopts and is flexible coupling; Screw feeder is lifted on the feed bin or establishes support in addition and fix, and feed bin or support are independent of screw feeder and screw feeder can directly be pressed in above the metering screw, otherwise can cause weighing inaccurate.
Compared with prior art, advantage of the present utility model is: adopt hermetic structure, can prevent that powder from raising outward, simultaneously can control feeding coal automatically and realize continuous dynamic quantitative, be applicable to granular material meterings such as slag powders, flyash, coal dust, also can use widely in departments such as food, feed, medicine, chemical industry.
Below in conjunction with description of drawings, the utility model is described in further detail.
Description of drawings
Fig. 1 is an agent structure synoptic diagram of the present utility model;
Fig. 2 is a system of the present utility model switch board structural representation.
Embodiment
Referring to Fig. 1, the spiral weighing system comprises manual push-pull valve 1, storage bin 8, screw feeder 2, charging scraper-trough conveyer 3, the storehouse 9 of weighing, metering screw 5, spiral conveyer 6 and discharging opening 7, also comprise the frequency-variable controller that is used to control screw feeder 2, frequency-variable controller is installed in the MEASUREMENT SYSTEM CONTROL cabinet 10, wherein manual push-pull valve 1 is positioned at and connects storage bin 8 upper ends, storage bin 8 lower ends connect the charging scraper-trough conveyer 3 and the storehouse 9 of weighing successively, weigh and metering screw 5 is set in the storehouse 9, storehouse 9 outlets of weighing connect spiral conveyer 6 and discharging opening 7 successively, and storage bin 8 inlets connect screw feeder 2; Charging flaw 3 and weigh between the storehouse 9 to adopt and be flexible coupling 4, discharging opening 7 ports also adopt and are flexible coupling 4, and screw feeder 2 is lifted on the storage bin 8, so that screw feeder 2 can directly not be pressed on the metering screw 5.Its ultimate principle is: when charging flaw 3 no materials enter metering screw 5, the signal of sensor of metering screw 5 is invariable, null value input as controller, during work, open manual push-pull valve 1, screw feeder 2 beginning feedings, material enters metering screw 5 by charging flaw 3, the pressure of the LOAD CELLS of 6 pairs of metering screws 5 of spiral conveyer progressively increases, when discharging opening 7 beginning dischargings, the signal of sensor of metering screw 5 should be a steady state value under perfect condition, and in the reality because the influence of various factors, this value is a change value, but can be stabilized in the flow value permissible error of setting in the controller.Metering screw 5 is similar with other continuous-feeding metering outfit, and its instantaneous feeding coal Qt is determined by following formula:
Qt＝kqt·Vt(t/h)
In the formula:
The specific electric load of material in qt---the helix balance, kg/m;
Vt---material is instantaneous flowing velocity in spiral, m/s;
K---the coefficient of weighing (constant that debugging is determined).
During use, screw feeder 2 is reinforced in the storehouse 9 of weighing fast, and when metering screw 5 reached higher limit Gmax, charging scraper-trough conveyer 3 cut out; The same with bunker scale, the average voltage signal of the LOAD CELLS output of metering screw 5 promptly is the heavy representative amount of material in the storehouse, by the loss Dg/dt of PLC according to weight of material in the storehouse of weighing in the unit interval, provides instantaneous delivery and integrated flow, in addition, this signal is also as measured value, and the machine calculation process compares with setting value as calculated, with its deviation as conditioning signal, be input to frequency converter, change the rotating speed of screw feeder 2, to reach the purpose of dosing.When material reduces to lower limit Gmin in the storehouse 9 of weighing, just finished method cycle of weighing by weight; PLC stops sampling, starts screw feeder 2 once more, makes the material in the storage bin 8 enter the storehouse 9 of weighing fast, waits to reach upper control limit Gmax, and then charging scraper-trough conveyer 3 cuts out and stops blanking.When weighing storehouse 9 chargings, method instrumentation and the control by measure of its blanking amount.In the cycle of method metering by measure, screw feeder 2 measures by the time according to preceding flashy flow by last spot speed running.Thereby realize continuously, dynamically accurately weighing.
Claims (3)
1. spiral weighing system, it is characterized in that: comprise manual push-pull valve (1), storage bin (8), screw feeder (2), charging scraper-trough conveyer (3), the storehouse (9) of weighing, metering screw (5), spiral conveyer (6) and discharging opening (7), also comprise the frequency-variable controller that is used to control screw feeder (2), frequency-variable controller is installed in the MEASUREMENT SYSTEM CONTROL cabinet (10), wherein storage bin (8) upper end is provided with manual push-pull valve (1), storage bin (8) lower end connects charging scraper-trough conveyer (3) and the storehouse of weighing (9) successively, weigh and metering screw (5) is set in the storehouse (9), storehouse (9) outlet of weighing connects spiral conveyer (6) and discharging opening (7) successively, and storage bin (8) inlet connects screw feeder (2).
2. the spiral according to claim 1 wash-out of weighing is characterized in that: adopt be flexible coupling (4) between charging flaw (3) and the storehouse of weighing (9), discharging opening (7) port adopts be flexible coupling (4).
3. the spiral according to claim 1 wash-out of weighing is characterized in that: screw feeder (2) is lifted on storage bin (8) and goes up or establish support in addition and fix, and storage bin (8) or support are independent of metering screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201495400U CN201413181Y (en) | 2009-04-23 | 2009-04-23 | Spiral weighing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201495400U CN201413181Y (en) | 2009-04-23 | 2009-04-23 | Spiral weighing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413181Y true CN201413181Y (en) | 2010-02-24 |
Family
ID=41715064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201495400U Expired - Fee Related CN201413181Y (en) | 2009-04-23 | 2009-04-23 | Spiral weighing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413181Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144971A (en) * | 2013-03-04 | 2013-06-12 | 苏州华威工程技术有限公司 | Baking soda automatic quantitative charging machine |
| CN103508218A (en) * | 2012-06-29 | 2014-01-15 | 上海城投污水处理有限公司 | Sludge incineration fly ash outwards conveying device |
| CN103707416A (en) * | 2013-12-14 | 2014-04-09 | 郑州市长城机器制造有限公司 | Quantitative powder loading system |
| CN104446046A (en) * | 2014-11-27 | 2015-03-25 | 广西鱼峰水泥股份有限公司 | Method for increasing mixing amount of cement admixture |
| CN104729638A (en) * | 2013-12-20 | 2015-06-24 | 西安信唯信息科技有限公司 | Fine powdered coal forced feeder suitable for rotor metering scale |
| CN105856448A (en) * | 2016-05-14 | 2016-08-17 | 芜湖万向新元环保科技有限公司 | Positive-pressure conveying system |
| CN107389165A (en) * | 2017-06-08 | 2017-11-24 | 江西中氟化工有限公司 | A kind of Fluorspar Powder blanking device |
| CN109357737A (en) * | 2018-09-21 | 2019-02-19 | 嘉善天晟精密铸件有限公司 | A kind of screw(-type) feeder and Weighing force transmission mechanism |
-
2009
- 2009-04-23 CN CN2009201495400U patent/CN201413181Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508218A (en) * | 2012-06-29 | 2014-01-15 | 上海城投污水处理有限公司 | Sludge incineration fly ash outwards conveying device |
| CN103144971A (en) * | 2013-03-04 | 2013-06-12 | 苏州华威工程技术有限公司 | Baking soda automatic quantitative charging machine |
| CN103144971B (en) * | 2013-03-04 | 2015-01-21 | 苏州华威工程技术有限公司 | Baking soda automatic quantitative charging machine |
| CN103707416A (en) * | 2013-12-14 | 2014-04-09 | 郑州市长城机器制造有限公司 | Quantitative powder loading system |
| CN104729638A (en) * | 2013-12-20 | 2015-06-24 | 西安信唯信息科技有限公司 | Fine powdered coal forced feeder suitable for rotor metering scale |
| CN104446046A (en) * | 2014-11-27 | 2015-03-25 | 广西鱼峰水泥股份有限公司 | Method for increasing mixing amount of cement admixture |
| CN105856448A (en) * | 2016-05-14 | 2016-08-17 | 芜湖万向新元环保科技有限公司 | Positive-pressure conveying system |
| CN107389165A (en) * | 2017-06-08 | 2017-11-24 | 江西中氟化工有限公司 | A kind of Fluorspar Powder blanking device |
| CN107389165B (en) * | 2017-06-08 | 2019-06-25 | 江西中氟化工有限公司 | A kind of Fluorspar Powder blanking device |
| CN109357737A (en) * | 2018-09-21 | 2019-02-19 | 嘉善天晟精密铸件有限公司 | A kind of screw(-type) feeder and Weighing force transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20110423 |