CN2294460Y - Device for measuring volume of additional supply from external source - Google Patents
Device for measuring volume of additional supply from external source Download PDFInfo
- Publication number
- CN2294460Y CN2294460Y CN 97215303 CN97215303U CN2294460Y CN 2294460 Y CN2294460 Y CN 2294460Y CN 97215303 CN97215303 CN 97215303 CN 97215303 U CN97215303 U CN 97215303U CN 2294460 Y CN2294460 Y CN 2294460Y
- Authority
- CN
- China
- Prior art keywords
- metering cylinder
- metering
- liquid additive
- pipe
- measuring apparatus
- 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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Abstract
The utility model relates to a metering device for liquid additive, used for metering and charging liquid additive in concrete proportioning. In the device, a plexiglass metering cylinder is directly hung on a sensor fixed to a machine frame. The device is provided with a feeding pipe and a water washing pipe; the feeding pipe extending to the bottom of the metering cylinder is provided with a plurality of air inlets, and covered by a splash shield outside. The utility model has the advantages of simple structure, precise metering and easy fabrication, adopts a feeding system with no negative pressure and avoids siphon backflow after metering. The device is one of the corollary equipment of goods concrete mixing plants.
Description
The special-purpose meterage in weighting device that is used for the metering liquid additive when this device is concrete batching.
Along with being extensive use of of Commercial Concrete, the development of high-performance, high grade, multi-usage concrete, additive has become requisite a kind of component in the concrete.Commercial Concrete is stirred to cast-in-place shaping from batching a mistiming, thereby the slump, setting time etc. all there is particular requirement, thereby various high efficiency water reducing agents, early strength agent, retardant, pumping admixture etc. have become indispensable component in the commerical ready-mixed concrete, the easy moisture absorption of solid additive, be difficult to control in process of production, general concrete mixing station adopts liquid additive mostly, and the liquid additive measuring apparatus is one of concrete mixing station imperative equipment.Since the eighties, China has introduced a series of concrete mixing stations from external successively, comprising the liquid additive measuring apparatus.Lever---the sensor type liquid additive measuring apparatus of making as German Wurscchum company limited, its metering cylinder adopts more alkaline-resisting transparent organic glass pipe, base plate and cover plate are metal, are linked to be integral body by support, and the volume indicator scale is equipped with in the metering cylinder outside.Metering cylinder is fixed on the frame by lever, be that one on lever is fixed on the metering cylinder, one is fixed on the frame, and the sensor fulcrum is positioned at and leans on frame one end on the lever, and its principle of work is to make by the weight of weighing object by lever system to amplify, then signal is delivered to sensor, adopting range is the sensor of 100kg, and actual range of weighing is about 20kg, and metering cylinder cover plate both sides have charging aperture, feed pipe stretches into metering cylinder top by charging aperture, and the mouth of pipe is folded to barrel.Reverse checkvalve is housed on the feed pipe, flows backwards with the additive siphon after preventing to measure.The water Flushing nozzle is equipped with in cover plate central authorities, is used to wash cylindrical shell, controls by the water scouring electromagnetic valve.Base plate central authorities are provided with discharge port, and discharge port links to each other with the discharging pump by the discharging solenoid valve, and the additive after the metering enters stirring machine through this pump.This apparatus features is a complex structure, from great, owing to be imported product, thereby cost an arm and a leg, its advantage is a dependable performance, weighing is accurate.
In order to develop a kind of suitable China's national situation, simple structure is convenient to produce and the liquid additive measuring apparatus of accurate measurement the ad hoc the utility model of having counted.
The utility model is made of metering cylinder, frame, sensor and discharging pump etc.The main body of metering cylinder is the transparent organic glass pipe, cover plate and base plate are duroplasts, reach the circular groove that has above the base plate with the plexi-glass tubular coupling below the cover plate, between plexi-glass tubular and the base plate packing washer is arranged, constitute whole by four double threaded screws and nut between three of the cover plates, plexi-glass tubular, base plate.The rule of indicating volume is equipped with in the metering cylinder outside.Upper rack is equipped with the beam type sensor, and metering cylinder directly is suspended on the sensor by bolt and oscillating bearing.Feed pipe, water washpipe all are fixed on the frame, charge pipe reaches the metering cylinder bottom through the charge door on the plastic cover plate always, the mouth of pipe is cut into the inclined-plane, to alleviate when reinforced to the percussive action of metering cylinder, for the siphon backward flow problem after preventing to measure, open several air admission holes on charge pipe top, to eliminate the negative pressure in the charge pipe, additive sputters out from pore in order to prevent to measure, add a splash guard in the pore outside, adopt this method, accelerated metering speed greatly, avoided the siphon adverse current of metering back additive again.On the water washpipe solenoid valve is housed, the end is a shower nozzle, reaches in the metering cylinder.Be unsettled the connection between charge pipe, water washpipe and the metering cylinder.Have discharge port on the plastic bottom board, realize being flexible coupling by corrugated tube between discharge port and the discharging pump, adjunction one filtrator in the discharging pump inlet, prevent that impurity enters the discharging pump in the additive, delivery side of pump connects a retaining valve, stops pump discharge to the additive in the pipeline between the stirring machine to blow back into metering cylinder.
The liquid additive measuring apparatus that adopts this programme to make, have characteristics such as simple structure, easy to process, accurate measurement, because metering cylinder directly hangs on the sensor, the second order error of having avoided lever system to bring, the upper and lower cover plate plastic production of metering cylinder, the existing corrosive attack that prevents additive, reduced cost, whole metering cylinder deadweight is reduced greatly, can select the less sensor of range in addition, thereby improve measuring accuracy.Offer pore on the charge pipe, splash guard is set, accelerated metering speed greatly, processing is convenient again, and the influence that when also not having the reverse checkvalve performance bad metering speed is brought has solved the siphon backward flow problem again conscientiously.Whole pipeline all adopts PVC to make, and has advantages such as corrosion-resistant, in light weight, easy to process.
Accompanying drawing is a structural map of the present utility model.(1) sensor, (2) metering cylinder, (3) frame, (4) discharging pump, (5) charge pipe, (6) water washpipe, (7) water Flushing nozzle, (8) water scouring electromagnetic valve, (9) splash guard, (10) metering cylinder cover plate, (11) metering cylinder base plate, (12) packing washer, (13) double threaded screw and nut, (14) scale, (15) oscillating bearing, (16) discharge port, (17) filtrator, (18) corrugated connecting tube, (19) retaining valve.
Most preferred embodiment of the present utility model is: selecting external diameter for use is 200mm, highly be 660mm, wall thickness is that the transparent organic glass pipe of 6mm and PVC plastic plate that thickness is 20mm are made metering cylinder, the hole that has 2 25mm on the cover plate is as charging aperture and water rinse mouth, with the pvc pipe of 20mm as charge pipe and water washpipe, wherein charge pipe is 16mm from air admission hole to the exit portion external diameter, the air inlet hole count is 3, splash guard is that internal diameter is the pvc pipe of 20mm, and the gap between splash guard and the charge pipe is 2mm.Cover plate central authorities open the aperture of a 6mm, in order to set bolt, oscillating bearing is connected as a single entity metering cylinder and sensor by this bolt, one side of base plate has the dumping pit of a 32mm, be about 50mm with length, the pvc pipe of caliber 32mm constitutes discharge port, all have the hole of four 12mm around cover plate and the base plate, the double threaded screw of four M10 is formed metering cylinder with cover plate, base plate and plexi-glass tubular, cover plate bottom and base plate top all have the circular groove of 200mm in addition, add the silicone rubber O-ring of a 200mm in the circular groove of base plate.The BHR-25 type 50kg sensor and the oscillating bearing that adopt Shanghai East China Electronics Co., Ltd instrument plant to produce; frame is welded by iron plate, has various mounting holes above, and the discharging pump is selected the stainless steel pump of XD1.6-25 type for use; power is 0.18 kilowatt, and inlet and outlet are 25mm.Adopt the liquid additive measuring apparatus of said structure, through connecting the scale test of secondary instrument school, its error is less than 1%, and national standard is less than 3% to the error in dipping requirement of additive.
Claims (3)
1, a kind of liquid additive measuring apparatus, by sensor (1), metering cylinder (2), frame (3), discharging pump (4), charge pipe (5), water washpipe formations such as (6), it is characterized in that metering cylinder (2) directly is suspended on the sensor (1) that is fixed in frame (3), charge pipe has several air admission holes on (5), outer cover splash guard (9).
2, liquid additive measuring apparatus as claimed in claim 1, it is characterized in that metering cylinder (2) is made of transparent organic glass pipe and plastic cover plate (10), plastic bottom board (11), all have circular groove on cover plate (10) and the base plate (11) with transparent organic glass pipe caliber coupling, be lined with packing washer (12) in the groove of base plate, metering cylinder is by four double threaded screws and fixed by nut.
3, liquid additive measuring apparatus as claimed in claim 1 is characterized in that described charge pipe (5) reaches the bottom of metering cylinder (2) always, and port is cut into the inclined-plane, and air admission hole and splash guard (9) are positioned at the top of metering cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215303 CN2294460Y (en) | 1997-04-22 | 1997-04-22 | Device for measuring volume of additional supply from external source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215303 CN2294460Y (en) | 1997-04-22 | 1997-04-22 | Device for measuring volume of additional supply from external source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2294460Y true CN2294460Y (en) | 1998-10-14 |
Family
ID=33932509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97215303 Expired - Fee Related CN2294460Y (en) | 1997-04-22 | 1997-04-22 | Device for measuring volume of additional supply from external source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2294460Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308631C (en) * | 2003-04-17 | 2007-04-04 | 升隆贸易有限公司 | Liquid supply pipe capable of preventing backflow |
| CN102431092A (en) * | 2010-09-29 | 2012-05-02 | 北京中煤矿山工程有限公司 | Automatic proportioning device for clay slurry |
| CN102620802A (en) * | 2012-03-27 | 2012-08-01 | 江苏名和集团有限公司 | Concrete admixture weighing body and using method thereof |
| CN102848474A (en) * | 2012-09-04 | 2013-01-02 | 徐工集团工程机械股份有限公司 | Additive metering hopper quantitative water flushing apparatus for concrete stirring station |
-
1997
- 1997-04-22 CN CN 97215303 patent/CN2294460Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308631C (en) * | 2003-04-17 | 2007-04-04 | 升隆贸易有限公司 | Liquid supply pipe capable of preventing backflow |
| CN102431092A (en) * | 2010-09-29 | 2012-05-02 | 北京中煤矿山工程有限公司 | Automatic proportioning device for clay slurry |
| CN102431092B (en) * | 2010-09-29 | 2014-06-18 | 北京中煤矿山工程有限公司 | Automatic proportioning device for clay slurry |
| CN102620802A (en) * | 2012-03-27 | 2012-08-01 | 江苏名和集团有限公司 | Concrete admixture weighing body and using method thereof |
| CN102848474A (en) * | 2012-09-04 | 2013-01-02 | 徐工集团工程机械股份有限公司 | Additive metering hopper quantitative water flushing apparatus for concrete stirring station |
| CN102848474B (en) * | 2012-09-04 | 2014-08-20 | 徐州徐工施维英机械有限公司 | Additive metering hopper quantitative water flushing apparatus for concrete stirring station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |