CN204076521U - Powder metering mechanism of concrete mixing plant - Google Patents
Powder metering mechanism of concrete mixing plant Download PDFInfo
- Publication number
- CN204076521U CN204076521U CN201420551312.7U CN201420551312U CN204076521U CN 204076521 U CN204076521 U CN 204076521U CN 201420551312 U CN201420551312 U CN 201420551312U CN 204076521 U CN204076521 U CN 204076521U
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- screw machine
- butterfly valve
- weighing system
- electromagnetic valves
- way electromagnetic
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Abstract
The utility model relates to a kind of powder metering mechanism of concrete mixing plant, comprise screw machine and Weighing system, screw machine entrance connects filler bin, screw machine outlet connects Weighing system, Weighing system comprises Weighting and Controlling instrument and scale hooper, and scale hooper bottom is provided with LOAD CELLS, installs the Pneumatic butterfly valve with screw machine outlet diameter adaptation in screw machine exit additional, Pneumatic butterfly valve gas circuit is provided with two five-way electromagnetic valves, the control signal wire of two five-way electromagnetic valves connects screw machine contactor.Two five-way electromagnetic valves control by the signal of screw machine contactor; when Weighting and Controlling instrument sends screw machine halt instruction; screw machine contactor disconnects; screw machine stops charging; the valve core reset of two five-way electromagnetic valves be connected with screw machine contactor; control air inlet path is closed, thus controls Pneumatic butterfly valve closedown, avoids screw machine inertia output powder and enters scale hooper.
Description
Technical field
The utility model relates to raising concrete mixing plant powder metering accuracy apparatus, particularly concrete mixing plant powder dynamic measuring precision, guarantees that concrete mixing plant powder dynamic measuring precision controlling is within the scope of national standard.
Background technology
In HZS type concrete mixing plant production process, powder metering precision is the key factor of concrete quality.Current HZS type mixing plant powder metering process: powder is stored in filler bin, by screw machine by powder carry in powder metering bucket, weight is converted to the signal of telecommunication and delivers to Weighting and Controlling instrument and carry out Weighting and Controlling by the sensor of scale hooper bottom.
Powder weighing control principle: before mixing plant starts production, needs on Weighting and Controlling instrument, input concrete mix (the various material set point of concrete), setting drop value (also automatically can be generated by system), drop extent of amendment (according to measuring accuracy setting).In each dish metering process; Weighting and Controlling instrument sends screw machine start-up command; screw machine carries powder to powder bucket; when powder bucket powder weight reaches definite value (definite value equals powder setting value-setting drop value); Weighting and Controlling instrument sends screw machine halt instruction; screw machine power-off; due to screw machine effect of inertia; screw machine can continue to rotate a certain angle; output powder; be exported to the powder fallen between scale hooper powder surface when adding screw machine power-off, form actual drop value, actual drop value adds that definite value is the actual weight of powder.After a dish powder metering terminates, Weighting and Controlling instrument compares actual drop value and setting drop value, and when error is in drop extent of amendment, lower wall powder metering is by former setting drop value metering; When error exceeds drop extent of amendment, Weighting and Controlling instrument auto modification setting drop value, lower wall powder metering is by revised drop value metering.
Owing to continuing after the power-off of effect of inertia screw machine to rotate, the size of the anglec of rotation is subject to the fluctuation of voltage, the viscosity of powder, screw machine lubricating status, the impact of abrasion condition, due to the fluctuation of voltage, the viscosity of powder, screw machine lubricating status, abrasion condition enchancement factor is more, make screw machine inertia output powder uncontrollable, thus cause actual drop value to change greatly, setting drop value frequently revised by Weighting and Controlling instrument, result is that each weight of material total amount of polydisc concrete mix does not exceed standard, but each weight of material of single-deck concrete mix exceeds standard, serious has had influence on concrete quality.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of powder metering mechanism of concrete mixing plant, can close screw machine outlet in time, thus the uncontrollable defect of screw machine inertia output powder.
Solve above technical problem, the technical solution adopted in the utility model is:
A kind of powder metering mechanism of concrete mixing plant, comprise filler bin, screw machine and Weighing system, screw machine entrance connects filler bin, screw machine outlet connects Weighing system, Weighing system comprises Weighting and Controlling instrument and scale hooper, and scale hooper bottom is provided with LOAD CELLS, installs the Pneumatic butterfly valve with screw machine outlet diameter adaptation in screw machine exit additional, Pneumatic butterfly valve gas circuit is provided with two five-way electromagnetic valves, the control signal wire of two five-way electromagnetic valves connects screw machine contactor.
Two five-way electromagnetic valves control by the signal of screw machine contactor; when Weighting and Controlling instrument sends screw machine halt instruction; screw machine contactor disconnects; screw machine stops charging; the coil losing electricity of two five-way electromagnetic valves be connected with screw machine contactor, valve core reset, controls the reverse air inlet of gas circuit; thus control Pneumatic butterfly valve closedown, avoid screw machine inertia output powder and enter scale hooper.During screw machine charging, the coil electricity of two five-way electromagnetic valves be connected with screw machine contactor, spool moves, and controls the air inlet of gas circuit forward, controls Pneumatic butterfly valve and opens.
As a kind of technical scheme having choosing, Pneumatic butterfly valve bottom connects lower connector, and lower connector is connected with snake-like hose, and snake-like hose connects Weighing system.From the powder that screw machine exports out, through the Pneumatic butterfly valve opened, enter Weighing system ground scale hooper from snake-like hose.
After adopting the utility model metering device, actual drop value is only exported to the impact of elevation and the change of powder proportion between scale hooper powder surface by screw machine, and screw machine is exported to elevation between scale hooper powder surface is fixing, the change of powder proportion is very little, thus actual drop value change is very little, ensure actual drop value and set the error of drop value in drop extent of amendment, effectively eliminating the impact of screw machine on actual drop value.The utility model is applicable to HZS type concrete mixing plant powder metering.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model powder metering mechanism of concrete mixing plant.
Fig. 2 is pneumatic diagram of the present utility model.
Fig. 3 is circuit theory diagrams of the present utility model.
In figure, 1-filler bin, 2-screw machine, 3-Weighing system, 4-Pneumatic butterfly valve, 5-two five-way electromagnetic valves, 6-screw machine contactor, 7-snake-like hose, 8-mixer, 9-screw machine motor.
Detailed description of the invention
The technical scheme claimed to the utility model below in conjunction with accompanying drawing does explanation clear, complete further.
As shown in Figure 1, the outlet of filler bin 1 is connected with the entrance of screw machine 2, and screw machine 2 exports and connects Weighing system 3, and Weighing system 3 comprises Weighting and Controlling instrument and scale hooper, and scale hooper bottom is provided with LOAD CELLS, and Weighing system 3 bottom is mixer 8.The Pneumatic butterfly valve 4 with screw machine 2 outlet diameter adaptation is installed additional in screw machine 2 exit.When Pneumatic butterfly valve is installed, export out the flange of welding and Pneumatic butterfly valve 4 adaptation at screw machine 2, by Pneumatic butterfly valve 4 and Flange joint.
As shown in Figure 2, Pneumatic butterfly valve 4 gas circuit is provided with two five-way electromagnetic valves 5.Two five-way electromagnetic valves 5 are controlling organizations of Pneumatic butterfly valve 4.Gas circuit is installed the gas path joint that gas circuit threeway connects Pneumatic butterfly valve 4.
As shown in Figure 3, the control signal wire of two five-way electromagnetic valves 5 connects the relay of screw machine contactor 6, screw machine contactor 6 is connected with screw machine motor 9, and two five-way electromagnetic valves 5 control by the signal of screw machine contactor 6, make Pneumatic butterfly valve 4 synchronous with the on-off action of screw machine 2.
On the basis of above structure, as shown in Figure 1, Pneumatic butterfly valve 4 bottom connects lower connector, and lower connector is connected with snake-like hose 7, and snake-like hose 7 connects the scale hooper of Weighing system 3.
During work, calculating screw machine 2 is exported to powder weight between scale hooper powder surface and inputs Weighting and Controlling instrument as drop setting value.Drop extent of amendment (value size is moderate) is calculated, input Weighting and Controlling instrument by powder error requirements.Start trial production, produces through a few dish, and setting drop value is adjusted to the value adapted with actual drop value by Weighting and Controlling instrument automatically.
Claims (2)
1. a powder metering mechanism of concrete mixing plant, comprise screw machine (2) and Weighing system (3), screw machine (2) entrance connects filler bin (1), screw machine (2) outlet connects Weighing system (3), Weighing system comprises Weighting and Controlling instrument and scale hooper, scale hooper bottom is provided with LOAD CELLS, it is characterized in that: install the Pneumatic butterfly valve (4) with screw machine (2) outlet diameter adaptation additional in screw machine (2) exit, Pneumatic butterfly valve (4) gas circuit is provided with two five-way electromagnetic valves (5), the control signal wire of two five-way electromagnetic valves (5) connects screw machine contactor (6).
2. powder metering mechanism of concrete mixing plant according to claim 1, is characterized in that: Pneumatic butterfly valve (4) bottom connects lower connector, and lower connector is connected with snake-like hose (7), and snake-like hose (7) connects Weighing system (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551312.7U CN204076521U (en) | 2014-09-24 | 2014-09-24 | Powder metering mechanism of concrete mixing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551312.7U CN204076521U (en) | 2014-09-24 | 2014-09-24 | Powder metering mechanism of concrete mixing plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204076521U true CN204076521U (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420551312.7U Expired - Fee Related CN204076521U (en) | 2014-09-24 | 2014-09-24 | Powder metering mechanism of concrete mixing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204076521U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669440A (en) * | 2015-01-29 | 2015-06-03 | 徐莉娜 | Gravel metering device |
| CN105345931A (en) * | 2015-12-08 | 2016-02-24 | 广西盛达混凝土有限公司 | Powder filtering and metering device of mixing station |
| CN105666702A (en) * | 2016-04-06 | 2016-06-15 | 福建南方路面机械有限公司 | Continuous powder weighing system and method and continuous stirring equipment |
| CN107747996A (en) * | 2017-09-22 | 2018-03-02 | 徐州徐工铁路装备有限公司 | Mixing plant powder weighing balance |
| CN109738046A (en) * | 2018-11-28 | 2019-05-10 | 北京沄汇智能科技有限公司 | The automatic weighing device of powder |
| CN110260966A (en) * | 2019-06-28 | 2019-09-20 | 川田机械制造(上海)有限公司 | The method of measuring accuracy control |
| CN111844444A (en) * | 2020-07-24 | 2020-10-30 | 苏州农业职业技术学院 | Concrete mixing robot with automatic sampling function |
| CN112945361A (en) * | 2021-03-12 | 2021-06-11 | 四川仲玛智造科技有限公司 | Vibrating accurate weighing equipment |
| CN115231245A (en) * | 2022-09-15 | 2022-10-25 | 安徽高哲信息技术有限公司 | Distributor |
-
2014
- 2014-09-24 CN CN201420551312.7U patent/CN204076521U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669440B (en) * | 2015-01-29 | 2017-01-18 | 徐莉娜 | Gravel metering device |
| CN104669440A (en) * | 2015-01-29 | 2015-06-03 | 徐莉娜 | Gravel metering device |
| CN105345931A (en) * | 2015-12-08 | 2016-02-24 | 广西盛达混凝土有限公司 | Powder filtering and metering device of mixing station |
| CN105666702A (en) * | 2016-04-06 | 2016-06-15 | 福建南方路面机械有限公司 | Continuous powder weighing system and method and continuous stirring equipment |
| CN107747996A (en) * | 2017-09-22 | 2018-03-02 | 徐州徐工铁路装备有限公司 | Mixing plant powder weighing balance |
| CN109738046B (en) * | 2018-11-28 | 2024-02-20 | 北京沄汇智能科技有限公司 | Automatic weighing device of powder |
| CN109738046A (en) * | 2018-11-28 | 2019-05-10 | 北京沄汇智能科技有限公司 | The automatic weighing device of powder |
| CN110260966A (en) * | 2019-06-28 | 2019-09-20 | 川田机械制造(上海)有限公司 | The method of measuring accuracy control |
| CN111844444B (en) * | 2020-07-24 | 2021-07-06 | 苏州农业职业技术学院 | Concrete mixing robot with automatic sampling function |
| CN111844444A (en) * | 2020-07-24 | 2020-10-30 | 苏州农业职业技术学院 | Concrete mixing robot with automatic sampling function |
| CN112945361A (en) * | 2021-03-12 | 2021-06-11 | 四川仲玛智造科技有限公司 | Vibrating accurate weighing equipment |
| CN112945361B (en) * | 2021-03-12 | 2022-09-23 | 四川仲玛智造科技有限公司 | Vibrating type accurate weighing equipment |
| CN115231245A (en) * | 2022-09-15 | 2022-10-25 | 安徽高哲信息技术有限公司 | Distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150924 |
|
| EXPY | Termination of patent right or utility model |