CN207156150U - A kind of concrete mixing plant powder essence metering device - Google Patents
A kind of concrete mixing plant powder essence metering device Download PDFInfo
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- CN207156150U CN207156150U CN201721094064.8U CN201721094064U CN207156150U CN 207156150 U CN207156150 U CN 207156150U CN 201721094064 U CN201721094064 U CN 201721094064U CN 207156150 U CN207156150 U CN 207156150U
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- valve
- control valve
- conveying worm
- metering device
- mixing plant
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Abstract
The utility model discloses a kind of concrete mixing plant powder essence metering device, including conveying worm, discharge port, control valve and weighing hopper, wherein described conveying worm has charging aperture and discharging opening, transitional storehouse is connected with the discharging opening of conveying worm, the discharge end of the transitional storehouse is connected by control valve with the discharge port, the valve pocket aisle spare of the control valve is adjustable, control unit is connected to the weighing hopper and control valve, the control unit receives the metering signal of weighing hopper and controls the valve pocket aisle spare of the control valve, described conveying worm is electrically connected by electro-magnetic time-delay valve with control unit.The utility model is simple and compact for structure, and practical, and measuring accuracy is high.
Description
Technical field
The utility model belongs to metering and conveying device, more particularly to a kind of concrete mixing plant powder essence metering device.
Background technology
Binder materials is the main raw material(s) of concrete mixing plant, after hydration reaction occurs with water, becomes collagen by sandstone
It is bonded together.In order to reduce cement consumption, improve the workability of concrete, and improve concrete performance, generally can also add
Add the admixtures such as flyash and miberal powder, cement and admixture on concrete mixing plant by mash form conveyed and in terms of
Amount.Powder-material conveying equipment is usually using conveying worm, but conveying worm is because inertia is larger, it is impossible to controls blanking very well
Amount and drop, cause powder metering precision not high, influence concrete quality.Therefore, current high ferro concrete mixing plant, in order to
Powder metering precision is improved, much primary and secondary conveying worm is used, i.e., sub- spiral is further added by below female spiral.
Primary and secondary conveying worm is as shown in figure 1, female spiral 1 has charging aperture 11, discharging opening 12 and motor 13, sub- spiral 5
With charging aperture 51, discharging opening (and female spiral 1 shares discharging opening) and motor 52.When powder metering starts, the motor of female spiral 1
13 and the motor 52 of sub- spiral 5 start simultaneously, powder starts to convey with prestissimo, and enters powder metering bucket from discharging opening 12
(Fig. 1 is not shown), when measuring instrument (Fig. 1 is not shown) shows that weight reaches the thick variable of default, female spiral 1 closes
Closing, only sub- spiral 5 is opened, until measuring instrument shows that weight reaches the smart variable of default, sub- spiral 5 is closed,
Smart variable adds drop, measuring instrument is shown that weight (show value) reaches the about definite value of default, i.e. show value peace treaty
Error between definite value is less than ± 1%.Because the caliber of sub- spiral 5 is less than female spiral 1, so as to reduce discharge quantity and drop,
Improve powder metering precision.But because sub- spiral is a complete helix for including motor, helical blade and tube wall, therefore son
Female conveying worm cost is higher.
CN201210092675 discloses a kind of powder metering conveying device, mainly including storage bin, conveying worm, tune
Save valve and weighing hopper.By changing the blanking bore of regulating valve, so as to control the blanking velocity of powder and cutting stock precision, work as metering
When value (show value) reaches standard value (about definite value), regulating valve completely closes blanking bore, stops blanking.But the program is in reality
Shi Shi, after regulating valve closes part bore, because conveying worm is still in running status, the powder that the unit interval conveys does not have
Change, motor may be caused to burn out so as to cause conveying worm putty, when serious and damaged with helical axis.In turn, regulation is worked as
After valve closes part bore, if conveying worm is closed, powder will be caused insufficient, calculate the weight and do not reach agreement
Value.
Utility model content
The purpose of this utility model be overcome the deficiencies in the prior art and provide it is a kind of it is practical, measuring accuracy is high
Concrete mixing plant powder essence metering device.
In order to solve the above technical problems, concrete mixing plant powder essence metering device provided by the utility model is a kind of mixed
Solidifying soil mixing station powder essence metering device, including conveying worm, discharge port, control valve and weighing hopper, wherein the spiral transferring
Send machine that there is charging aperture and discharging opening, transitional storehouse, the discharge end of the transitional storehouse are connected with the discharging opening of conveying worm
Connected by the blanking regulating valve with the discharge port, control valve, the control valve are provided between discharge port and transitional storehouse
Valve pocket aisle spare it is adjustable, control unit is electrically connected to the weighing hopper and control valve, and described conveying worm passes through delay
Magnetic valve electrically connects with described control unit, and the control unit receives the metering signal of weighing hopper and controls the valve of the control valve
Chamber aisle spare.
Described control valve is push-pull valve, and linear motion adjustment valve pocket aisle spare is carried out by cylinder control.
The cylinder of described control valve is multiposition cylinder, at least 3 standard-sized sheet position, half open position and close stance working positions
Put.
The cylinder of described control valve is three position cylinders, has 3 standard-sized sheet position, half open position and close stance operating positions,
Three position cylinders are the strokes with two determinations with the combination of two cylinders, therefore, half open position accurate positioning of control valve,
Valve pocket aisle spare is constant, ensure that the smart metered flow of powder.
The cylinder of described control valve is installed upward parallel to conveying worm, valve pocket communication port during half open position is located at control
The bottom of valve processed, powder is facilitated to drop into weighing hopper under freely falling body under gravity.
The valve pocket aisle spare of the standard-sized sheet position of the valve pocket aisle spare of half open position≤1/2.
The valve pocket aisle spare of half open position is the 15%~30% of standard-sized sheet position valve pocket aisle spare.
Compared with prior art, the beneficial effects of the utility model are：
The measuring accuracy of the powder essence metering device is significantly larger than normal spiral conveyer, or even measuring accuracy is higher than homotype
Number primary and secondary conveying worm because valve pocket aisle spare and sub- helix tube inner section product it is suitable when, the powder metering equipment
It is because less without the active thrust of helical blade, discharge quantity.Although the smart year-on-year primary and secondary conveying worm of metered rate under
Drop, but for the high ferro concrete mixing plant mixing time of more than 2 minutes, metered rate is not problem.On the other hand, it is smart
Metered rate is also to adjust, and changes the valve pocket aisle spare of control valve, i.e., preferably, changes the row of two-position cylinder
Journey, when half open position valve pocket aisle spare increases, smart metered rate is accelerated, but measuring accuracy declines simultaneously, otherwise when valve pocket leads to
When road area reduces, smart metered rate slows down, and measuring accuracy improves.Measuring accuracy and metered rate are inversely proportional, and this is all controls
The characteristic of valve, is no longer stated herein.
The powder essence metering device cost is low, except the cylinder and corresponding electro-magnetic time-delay valve and electric-control system of control valve,
Remaining is all simple steel construction.
The powder essence metering device is simple and compact for structure, and control valve is arranged along conveying worm axis, and overall dimension is small
In primary and secondary conveying worm, high ferro concrete mixing plant is commonly provided with the 4-7 powder tanks not waited, and also just needs the spiral shell of respective numbers
Conveyer is revolved, therefore screw conveyer structure is compacter, it is more convenient that arrangement is got up.
It is free using powder without sub- conveying worm meanwhile the powder essence metering device compares primary and secondary conveying worm
Falling bodies carry out smart metering, reduce energy consumption, correspondingly reduce the use cost of client.
Brief description of the drawings
Fig. 1 is the structural representation of powder essence metering device in the prior art；
Fig. 2 is structural representation of the present utility model.
Embodiment
Referring to Fig. 2, a kind of concrete mixing plant powder essence metering device, including conveying worm 1, transitional storehouse 2, control valve
3rd, discharge port 4 and control unit.Conveying worm 1 includes charging aperture 11, discharging opening 12 and feeder motor 13, in conveying worm
It is connected with transitional storehouse 2 on discharging opening 12, connected mode can be that to be detachably connected can also be to be welded to connect, and control valve 3 is set
Between transitional storehouse 2 and discharge port 4.The valve pocket aisle spare of control valve 3 can be adjusted, and control unit is connected to weighing hopper, control
Valve 3 and conveying worm 1, the control unit receive the metering signal of weighing hopper and control the valve pocket surface channel of the control valve 3
Product.
Control valve 3 is cylinder straight line push-pull valve, and the cylinder of cylinder straight line push-pull valve is multiposition cylinder, specifically, cylinder
For three position cylinders, there are 3 standard-sized sheet position, half open position and close stance operating positions, three position cylinders are the groups with two cylinders
Close, there is the stroke of two determinations, therefore, half open position accurate positioning of control valve, valve pocket aisle spare is constant, ensure that powder
Smart metered flow.
Control process of the present utility model is as follows：When powder metering starts, the feeder motor 13 of conveying worm 1 starts,
Control valve 3 is in standard-sized sheet position, and powder enters powder metering bucket by discharging opening 12, transitional storehouse 2 and discharge port 4, when on weighing hopper
When measuring instrument shows that weight reaches the thick variable of default, thick metering terminates, and is measured into essence, and control valve 3 is adjusted to
Half open position, while conveying worm 1 closes the (conveying of S numerical value and conveying worm by electro-magnetic time-delay valve after the S seconds are postponed
Amount is related to the volume of transitional storehouse), transitional storehouse 2 actually plays storing effect, and control valve 3 keeps half open position, when measuring instrument shows
Show that weight reaches the smart variable of default, control valve 3 is adjusted to close stance, and smart variable adds drop, makes measuring instrument
Display weight (show value) reaches the about definite value of default.In the present embodiment, the standard-sized sheet of the valve pocket aisle spare of half open position≤1/2
The valve pocket aisle spare of position, it is preferable that the valve pocket aisle spare of half open position is standard-sized sheet position valve pocket aisle spare 15%~30%, is led to
Cross above-mentioned design so that the discharge quantity of half open position is significantly lower than standard-sized sheet position, improves smart measuring accuracy.
As another embodiment of the utility model embodiment, the cylinder of control valve is parallel to conveying worm court
Upper installation, valve pocket communication port during half open position is set to be located at the bottom of control valve, facilitating powder, freely falling body falls under gravity
Enter weighing hopper.
Cylinder straight line push-pull valve can also rotate the control of the other forms such as push-pull valve or butterfly valve with cylinder in the utility model
Valve processed is substituted.
Claims (7)
1. a kind of concrete mixing plant powder essence metering device, including conveying worm, discharge port, control valve and weighing hopper, its
Described in conveying worm there is charging aperture and discharging opening, it is characterised in that：It was connected with the discharging opening of conveying worm
Storehouse is crossed, the discharge end of the transitional storehouse is connected by control valve with the discharge port, and the valve pocket aisle spare of the control valve can
Adjust, control unit is electrically connected to the weighing hopper and control valve, and the control unit is received described in the metering signal of weighing hopper and control
The valve pocket aisle spare of control valve, described conveying worm are electrically connected by electro-magnetic time-delay valve with the control unit.
2. concrete mixing plant powder essence metering device according to claim 1, it is characterised in that：Described control valve is
Cylinder straight line push-pull valve, cylinder rotation push-pull valve or butterfly valve, adjustment valve pocket aisle spare is controlled by cylinder.
3. concrete mixing plant powder essence metering device according to claim 2, it is characterised in that：Described control valve
Cylinder is multiposition cylinder, at least 3 standard-sized sheet position, half open position and close stance operating positions.
4. concrete mixing plant powder essence metering device according to claim 3, it is characterised in that：Described control valve
Cylinder is three position cylinders, has 3 standard-sized sheet position, half open position and close stance operating positions.
5. concrete mixing plant powder essence metering device according to claim 4, it is characterised in that：Described control valve
Cylinder is installed upward parallel to conveying worm.
6. the concrete mixing plant powder essence metering device according to claim any one of 3-5, it is characterised in that：Half open position
The standard-sized sheet position of valve pocket aisle spare≤1/2 valve pocket aisle spare.
7. concrete mixing plant powder essence metering device according to claim 6, it is characterised in that：The valve pocket of half open position leads to
Road area is the 15%~30% of standard-sized sheet position valve pocket aisle spare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721094064.8U CN207156150U (en) | 2017-08-29 | 2017-08-29 | A kind of concrete mixing plant powder essence metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721094064.8U CN207156150U (en) | 2017-08-29 | 2017-08-29 | A kind of concrete mixing plant powder essence metering device |
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| Publication Number | Publication Date |
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| CN207156150U true CN207156150U (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721094064.8U Active CN207156150U (en) | 2017-08-29 | 2017-08-29 | A kind of concrete mixing plant powder essence metering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469288A (en) * | 2018-07-06 | 2018-08-31 | 川田机械制造(上海)有限公司 | Metering control system for valve plate dosing machine and corresponding control method |
-
2017
- 2017-08-29 CN CN201721094064.8U patent/CN207156150U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469288A (en) * | 2018-07-06 | 2018-08-31 | 川田机械制造(上海)有限公司 | Metering control system for valve plate dosing machine and corresponding control method |
| CN108469288B (en) * | 2018-07-06 | 2024-02-06 | 川田机械制造(上海)有限公司 | Metering control system for valve plate metering machine and corresponding control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190311 Address after: 410016 West Street Garden A5 Building 901, Renmin East Road, Furong District, Changsha City, Hunan Province Patentee after: Hunan Huichuan Manufacturing Co Ltd Address before: 410319 Liuyang Environmental Science and Technology Demonstration Park, Changsha City, Hunan Province Patentee before: Changsha ADA Environmental Technology Co. Ltd. |
|
| TR01 | Transfer of patent right |