CN206083759U - Device for mulling process control with capacitance method detects old sand water content - Google Patents
Device for mulling process control with capacitance method detects old sand water content Download PDFInfo
- Publication number
- CN206083759U CN206083759U CN201620845198.8U CN201620845198U CN206083759U CN 206083759 U CN206083759 U CN 206083759U CN 201620845198 U CN201620845198 U CN 201620845198U CN 206083759 U CN206083759 U CN 206083759U
- Authority
- CN
- China
- Prior art keywords
- water
- signal input
- signal output
- converter
- process control
- 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
Links
Abstract
Device for mulling process control with capacitance method detects old sand water content relates to casting sand and detects and control field. It has been solved present mulling and has added the water installation when adding water to the roller mill, add the water meter calculate the precision not high with add water process control precision problem on the low side. The device comprises gate valve, filter, turbine flowmeter, electromagnetic water valve, roller mill, middle loading hopper, temperature sensor, capacitive sensor, capacitor signal converter, AD converter, computer, controller. The utility model is suitable for a mulling process control has improved the mulling quality of molding sand.
Description
Technical field
This utility model belongs to casting sand Detection ＆ Controling field, and in particular to a kind of to be contained using capacitance method detection old sand
The water yield carries out the device of mulling process control.
Background technology
The height of molding sand quality has significant impact to casting quality.According to statistics, due to the not high casting for causing of molding sand quality
Part waste product occupies sizable proportion, therefore the quality that sand is processed is most important.
Water content is an important indicator of molding sand quality, and it is too high or too low all to cause casting quality to decline, waste product
Increase.Molding sand can not be too dry, and otherwise bentonite can not play its cohesive force, and the toughness of molding sand is not enough, and sand mold is easily broken, and rises
Mould is difficult, and mo ld strength is low, and the defects such as sand washing and sand hole easily occurs in foundry goods.Molding sand also can not be overly wet, otherwise molding sand stream
Dynamic property is poor, and sand mold compacting is uneven, and excessive moisture easily makes foundry goods produce pin hole, pore, choke fire and burning into sand defect.Therefore, exist
The water content of molding sand must be strictly controlled in sand process.
Water content control when molding sand is blended can be pinched with handss by experienced workman and judge with sensation or enter in laboratory
The measurement of row compact rate of molding, water content, then, is controlled to the molding sand being blended according to technological requirement.Front kind of method personal error
Greatly；And later approach needs the time due to performance test, it is impossible to which directly the molding sand to being blended is controlled, therefore exist
Hysteresis quality.Later, develop the on-line automatic control of various sand humiditys both at home and abroad successively full-time, overcome conventional aqueous control
The deficiency of method.But, these devices effectively, do not cause amount of water computational accuracy high and add water due to the influence factor that considers
The low problem of process control precision.
The content of the invention
This utility model is the amount of water computational accuracy in order to solve existing mulling priming apparatus when adding water to puddle mixer
The not high and low problem of process control precision that adds water, there is provided a kind of to carry out mulling process using capacitance method detection old sand water content
The device of control.
Detect that old sand water content carries out the device of mulling process control using capacitance method, it includes gate valve, filter, turbine
Effusion meter, electromagnetic water valve, puddle mixer, charge of intermediation bucket, temperature sensor, capacitance sensor, capacitive transducer, A/D turn
Parallel operation, computer, controller.
The water outlet end of described gate valve is connected with the water inlet end of described filter, the outlet of described filter
End is connected with the water inlet end of described turbine flowmeter, the water outlet end and described electromagnetic water valve of described turbine flowmeter
Water inlet end be connected, the described water outlet end of electromagnetic water valve is connected with the filler end of described puddle mixer, it is described in
Between the discharge port end of loading hopper be connected with the charge door end of described puddle mixer, install described inside described charge of intermediation bucket
Temperature sensor and described capacitance sensor, the signal output part and described A/D converter of described temperature sensor
First signal input channel connects, the signal output part of described capacitance sensor and the signal of described capacitive transducer
Input is connected, and the signal output part of described capacitive transducer is logical with the secondary signal input of described A/D converter
Road is connected, and the described signal output part of turbine flowmeter is connected with the 3rd signal input channel of described A/D converter, institute
The signal output part of the A/D converter stated is connected with the signal input part of described computer, and the control of described computer is believed
Number outfan is connected with the control signal input of described controller, the control signal output of described controller with it is described
Electromagnetic water valve control signal input be connected.
This utility model is had the effect that compared with prior art：As the capacitance sensor for adopting detects that old sand is aqueous
Amount, and using used sand temperature as amendment reference, making should be more accurate to the calculating of amount of water in puddle mixer, due to adopting turbine flow
The number of gauge and computer real-time detection amount of water, greatly improves the precision for adding water.
Description of the drawings
Fig. 1 is to detect that old sand water content carries out the composition of the device of mulling process control using capacitance method in this utility model
Block diagram.
Specific embodiment
This utility model is elaborated preferred embodiment below according to accompanying drawing 1.
Specific embodiment：Referring to accompanying drawing 1, detect that old sand water content carries out the dress of mulling process control using capacitance method
Put, it include gate valve 1, filter 2, turbine flowmeter 3, electromagnetic water valve 4, puddle mixer 5, charge of intermediation bucket 6, temperature sensor 7,
Capacitance sensor 8, capacitive transducer 9, A/D converter 10, computer 11, controller 12.
The water outlet end of described gate valve 1 is connected with the water inlet end of described filter 2, and described filter 2 goes out
Mouth of a river end is connected with the water inlet end of described turbine flowmeter 3, the water outlet end and described electricity of described turbine flowmeter 3
The water inlet end of magnetic water valve 4 is connected, and the water outlet end of described electromagnetic water valve 4 is connected with the filler end of described puddle mixer 5,
The discharge port end of described charge of intermediation bucket 6 is connected with the charge door end of described puddle mixer 5, described charge of intermediation bucket 6
It is internal that described temperature sensor 7 and described capacitance sensor 8 be installed, the signal output part of described temperature sensor 7 with
The first signal input channel connection of described A/D converter 10, the signal output part of described capacitance sensor 8 with it is described
The signal input part of capacitive transducer 9 is connected, the signal output part and described A/D of described capacitive transducer 9
The secondary signal input channel of transducer 10 is connected, the signal output part and described A/D converter of described turbine flowmeter 3
10 the 3rd signal input channel is connected, the signal output part of described A/D converter 10 and the signal of described computer 11
Input is connected, the control signal output of described computer 11 and the control signal input phase of described controller 12
Even, the control signal output of described controller 12 is connected with the control signal input of described electromagnetic water valve 4.
Operation principle is as follows：
Manually opened described gate valve 1, water flow through described gate valve 1, filter 2, turbine flowmeter 3 and reach described electricity
The water inlet end of magnetic water valve 4, the old sand that the described capacitance sensor 8 being equipped with described charge of intermediation bucket 6 is detected are aqueous
The amount signal of telecommunication, after described capacitive transducer 9 is converted, sends in described A/D converter 10, and described centre adds
The described detection used sand temperature signal of temperature sensor 7 being equipped with hopper 6, and send in described A/D converter 10, it is described
A/D converter 10 by water content signal and the conversion of used sand temperature signal after, send into described computer 11, described computer
11 combine default mulling amount and molding sand water content, through computing can obtain this time should to the amount of water in described puddle mixer 5,
Subsequently, described computer 11 sends add water signal to described controller 12 by result of calculation, opens described electromagnetic water valve
4, add water in described puddle mixer 5 through described turbine flowmeter 3, amount of water is measured by described turbine flowmeter 3, and
Send described A/D converter 10 to, described computer 11 is given after conversion, when adding water that described computer 11 is detected
Amount with calculated this time should to the amount of water in described puddle mixer 5 it is equal when, described computer 11 is to described control
Device processed 12 sends control signal, closes described electromagnetic water valve 4, stops adding water.
Present embodiment is the exemplary illustration to this patent, does not limit its protection domain, people in the art
Member can also be locally changed to which, as long as no the spirit beyond this patent, all in the protection domain of this patent.
Claims (1)
1. detect that old sand water content carries out the device of mulling process control using capacitance method, it is characterised in that it includes gate valve
（1）, filter（2）, turbine flowmeter（3）, electromagnetic water valve（4）, puddle mixer（5）, charge of intermediation bucket（6）, temperature sensor
（7）, capacitance sensor（8）, capacitive transducer（9）, A/D converter（10）, computer（11）, controller（12）；
Described gate valve（1）Water outlet end and described filter（2）Water inlet end be connected, described filter（2）'s
Water outlet end and described turbine flowmeter（3）Water inlet end be connected, described turbine flowmeter（3）Water outlet end and institute
The electromagnetic water valve stated（4）Water inlet end be connected, described electromagnetic water valve（4）Water outlet end and described puddle mixer（5）'s
Filler end is connected, described charge of intermediation bucket（6）Discharge port end and described puddle mixer（5）Charge door end be connected, institute
The charge of intermediation bucket stated（6）Inside described temperature sensor is installed（7）With described capacitance sensor（8）, described temperature
Degree sensor（7）Signal output part and described A/D converter（10）The first signal input channel connection, described electric capacity
Sensor（8）Signal output part and described capacitive transducer（9）Signal input part be connected, described capacitance signal
Changer（9）Signal output part and described A/D converter（10）Secondary signal input channel be connected, described turbine flow
Gauge（3）Signal output part and described A/D converter（10）The 3rd signal input channel be connected, described A/D conversions
Device（10）Signal output part and described computer（11）Signal input part be connected, described computer（11）Control letter
Number outfan and described controller（12）Control signal input be connected, described controller（12）Control signal output
End and described electromagnetic water valve（4）Control signal input be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620845198.8U CN206083759U (en) | 2016-08-08 | 2016-08-08 | Device for mulling process control with capacitance method detects old sand water content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620845198.8U CN206083759U (en) | 2016-08-08 | 2016-08-08 | Device for mulling process control with capacitance method detects old sand water content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206083759U true CN206083759U (en) | 2017-04-12 |
Family
ID=58466656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620845198.8U Expired - Fee Related CN206083759U (en) | 2016-08-08 | 2016-08-08 | Device for mulling process control with capacitance method detects old sand water content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206083759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983967A (en) * | 2020-08-17 | 2020-11-24 | 于彦奇 | Intelligent system and control method for controlling quality of molding sand in foundry |
-
2016
- 2016-08-08 CN CN201620845198.8U patent/CN206083759U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983967A (en) * | 2020-08-17 | 2020-11-24 | 于彦奇 | Intelligent system and control method for controlling quality of molding sand in foundry |
| CN111983967B (en) * | 2020-08-17 | 2022-03-29 | 于彦奇 | Intelligent system and control method for controlling quality of molding sand in foundry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206738207U (en) | A kind of Wet-type dust-removal fan Performance Test System | |
| CN206083759U (en) | Device for mulling process control with capacitance method detects old sand water content | |
| CN201527387U (en) | On-line detecting instrument for molding sand | |
| CN206083760U (en) | Device according to old sand bulk density and temperature control mulling process | |
| CN105258766A (en) | Measurement device for continuous measurement gas flow meter, measurement system and measurement method | |
| CN206185079U (en) | Automatic sand mulling device of green -sand based on tight real rate and cohesive strength are measured | |
| CN103344552B (en) | Laboratory measuring system and method for pump concrete flow divider | |
| CN102121837A (en) | Biconical orifice plate float flow sensor | |
| CN210005530U (en) | device for detecting grouting fullness of steel bar sleeve | |
| CN202836631U (en) | Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection | |
| CN109827879B (en) | Machine learning-based wind powder online measurement method | |
| CN206083758U (en) | Automatic sand mulling device of green -sand based on water content and temperature real -time measurement | |
| CN201233389Y (en) | Molding sand on-line detecting instrument | |
| CN107042583A (en) | A kind of pulp metering system and its application method for pneumatic mortar machine | |
| CN104213902B (en) | Fluid metering is prized and its metering method | |
| CN206083757U (en) | Automatic sand mulling device based on bulk cargo temperature compensating and molding sand formability real -time detection | |
| CN101509863B (en) | Device for detecting viscosity and density of suspensoid media by drop manner | |
| CN202992651U (en) | Crude oil online density measuring device | |
| CN207622808U (en) | A kind of detachable wedge flow meter | |
| CN210155065U (en) | Molding sand water content value and CB value on-line measuring device | |
| CN202735856U (en) | Weighing-type liquid flow measurement and control apparatus | |
| CN113776986A (en) | Device and method for measuring apparent density of piled materials | |
| CN208366416U (en) | Barometric bin level meter | |
| CN203287055U (en) | Pore plate for measuring natural gas | |
| CN207761027U (en) | A kind of device on pipeline and the pipe-line system including the device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20170808 |