CN112109207A - Concrete liquid external additive metering system - Google Patents
Concrete liquid external additive metering system Download PDFInfo
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- CN112109207A CN112109207A CN202010979420.4A CN202010979420A CN112109207A CN 112109207 A CN112109207 A CN 112109207A CN 202010979420 A CN202010979420 A CN 202010979420A CN 112109207 A CN112109207 A CN 112109207A
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- liquid
- outlet pipe
- weighing hopper
- liquid outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0422—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery
- B28C7/044—Weighing mechanisms specially adapted therefor; Weighing containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
- B28C7/126—Supply means, e.g. nozzles
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention relates to a concrete liquid external additive metering system which comprises a rack, wherein a weighing hopper and a liquid storage tank for storing additives are arranged on the rack, a liquid outlet is formed in the lower end of the liquid storage tank, the liquid storage tank is communicated with the weighing hopper through a pumping device, the pumping device comprises a water pump and a first liquid outlet pipe, the water pump is communicated with the liquid storage tank, two ends of the first liquid outlet pipe are respectively communicated with the water pump and the weighing hopper, the upper end of the weighing hopper is hung on the rack through a tension sensor, a floating ball is arranged at one end of the first liquid outlet pipe communicated with the weighing hopper, and a lifting device for lifting the floating ball is arranged on the liquid storage tank. The liquid outlet pipe of the first liquid outlet pipe is always level to the liquid level in the weighing hopper under the action of the floating ball, so that the liquid admixture cannot have larger impact force to the weighing hopper in the process of feeding liquid into the weighing hopper.
Description
Technical Field
The invention relates to the technical field of concrete stirring equipment, in particular to a concrete liquid additive metering system.
Background
At present, when a concrete mixing plant is used for production, the weighing precision of an additive has direct influence on the quality of concrete, and the proportion of the additive in the concrete proportion generally does not exceed five percent of the cement consumption, so that how to control the weighing error is a key point of the design of the concrete mixing plant.
In the correlation technique, the storage box of admixture is through pipeline with the admixture pump sending to the weighing hopper in, carry out the weighing of admixture, but the admixture enters into when the weighing hopper, because the admixture velocity of flow of pumping is very high to there is very big impact force in the weighing hopper, arouses the weighing hopper to rock and lead to final weighing value inaccurate.
Disclosure of Invention
In order to improve the weighing accuracy of the weighing hopper on the additive, the invention aims to provide a concrete liquid additive metering system.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a concrete liquid adds agent metering system outward, includes the frame, be provided with the liquid reserve tank of weighing hopper and being used for storing the additive in the frame, the liquid reserve tank lower extreme is provided with the liquid outlet, the liquid reserve tank is linked together with the weighing hopper through pumping installations, pumping installations includes water pump and first drain pipe, the water pump with the liquid reserve tank is linked together, the both ends of first drain pipe are linked together with water pump and weighing hopper respectively, the weighing hopper upper end articulates in the frame through force transducer, first drain pipe with the one end that the weighing hopper is linked together is provided with the floater, be provided with the hoisting device who is used for promoting the floater on the liquid reserve tank.
By adopting the technical scheme, in the process of weighing the liquid admixture, the floating ball is firstly placed down by the lifting device, the end part of the first liquid outlet pipe is placed to the bottom of the weighing hopper by the floating ball, then the water pump is started, the liquid admixture in the liquid storage tank is pumped into the weighing hopper by the water pump through the first liquid outlet pipe, in the process, because the floating ball is arranged at one end of the first liquid outlet pipe communicated with the weighing hopper, the floating ball can drive the first liquid outlet pipe to ascend along with the rise of the liquid level in the weighing hopper along with the increase of the liquid admixture in the weighing hopper, so that the liquid outlet pipe of the first liquid outlet pipe is always level with the liquid level in the weighing hopper under the action of the floating ball, further, the liquid admixture cannot have large impact force to the weighing hopper in the process of feeding the weighing hopper, the accurate weighing value of the weighing hopper is improved, and before the admixture reaches the designated weighing weight, and closing the water pump, and lifting the floating ball through the lifting device so as to prevent the weight of the floating ball and the first liquid outlet pipe from increasing the weight of the weighing hopper.
The present invention in a preferred example may be further configured to: the lifting device comprises a winch and a connecting rope, the winch is arranged on the liquid storage tank, and two ends of the connecting rope are connected to the winch and the floating ball respectively.
Through adopting above-mentioned technical scheme, before carrying out first drain pipe tapping, start the hoist engine, the hoist engine of being convenient for transfers the play liquid end of floater and first drain pipe to the scale hopper bottom through connecting the rope, later promotes the play liquid end of connecting the rope to first drain pipe through the hoist engine again to avoid first drain pipe and floater to increase the weight of scale hopper.
The present invention in a preferred example may be further configured to: a three-way pipe is communicated and arranged between the first liquid outlet pipe and the water pump, the three-way pipe is provided with an output end and two input ends, the output end of the three-way pipe is communicated with the water pump, one input end of the three-way pipe is communicated with the first liquid outlet pipe, the other input end of the three-way pipe is communicated with a liquid collecting box, a first electromagnetic valve is arranged at the communication position of the three-way pipe and the liquid collecting box, a second liquid outlet pipe communicated with the weighing hopper is arranged in the liquid collecting box, and a second electromagnetic valve used for controlling the flow rate of the second liquid outlet pipe is arranged on the second liquid outlet pipe.
By adopting the technical scheme, when the liquid additive is added into the weighing hopper, the first electromagnetic valve is opened, so that the liquid additive in the liquid storage tank can enter the liquid collection tank for temporary storage, because the flow of the first liquid outlet pipe is large, when the liquid additive in the weighing hopper is about to reach the weighing capacity, the liquid additive in the weighing hopper is easy to exceed the required weight when the liquid additive is continuously injected into the weighing hopper through the first liquid outlet pipe, at the moment, the water pump is closed, the first liquid outlet pipe and the floating ball are lifted through the lifting device, the second electromagnetic valve is opened, the flow rate of the liquid additive is controlled by the second electromagnetic valve, so that the liquid additive is prevented from entering the weighing hopper, the liquid additive is slowly added into the weighing hopper, and the second electromagnetic valve is closed before the weight of the liquid additive in the weighing hopper reaches the designated weighing capacity, thereby ensuring that the weight of the liquid admixture weighed by the weighing hopper is more accurate.
The present invention in a preferred example may be further configured to: the liquid collecting box is transversely provided with the horizontal pole towards the inner wall of the weighing hopper, a slide bar penetrating out of one end of the liquid collecting box is arranged in the horizontal pole in a penetrating mode and connected with the horizontal pole in a sliding mode, a groove communicated with the inside of the horizontal pole is formed in the horizontal pole along the length direction of the horizontal pole, a first air cylinder is arranged in the liquid collecting box along the direction perpendicular to the horizontal pole, a piston rod of the first air cylinder penetrates through an inclined rod to be connected with one end, close to the liquid collecting box, of the slide bar through the groove, the two ends of the inclined rod are respectively connected with the piston rod of the first air cylinder in a rotating mode, and one end, far.
Through adopting above-mentioned technical scheme, when needs carry out the tapping through the second drain pipe, start first cylinder, first cylinder promotes the slide bar through the down tube and outwards slides along the length direction of cross bar, thereby make the slide bar drive the one end that the liquid trap was kept away from to the second drain pipe and the inner wall looks butt of weighing hopper, thereby make liquid admixture flow to the bottom of weighing hopper along the inner wall of weighing hopper after the second drain pipe flows, thereby reduce the impact of liquid weighing hopper, improve tension sensor's detection precision.
The present invention in a preferred example may be further configured to: the scale hopper is internally provided with a guide sloping platform, the guide sloping platform is provided with a sloping edge used for connecting the inner wall of the scale hopper and the bottom wall of the scale hopper, the sloping edge is provided with a diversion trench along the upper end thereof, and one end of the second liquid outlet pipe, which is far away from the liquid collecting tank, is right opposite to the upper end of the diversion trench.
By adopting the technical scheme, the liquid outlet end of the second liquid outlet pipe is abutted to the upper end of the guide groove under the driving of the slide rod, so that the liquid admixture flows into the weighing hopper along the guide groove in an inclined manner after entering from the upper end of the guide groove, and the impact of the liquid admixture on the weighing hopper is further reduced.
The present invention in a preferred example may be further configured to: the liquid collecting box is characterized in that a buffer tube is arranged between the liquid collecting box and the second liquid outlet tube, the middle of the buffer tube protrudes upwards, two ends of the buffer tube are respectively communicated with the bottom of the liquid collecting box and the second liquid outlet tube, and a second cylinder used for lifting the middle of the buffer tube along the vertical direction is arranged on the rack.
Through adopting above-mentioned technical scheme, through being provided with the buffer tube, the buffer tube middle part is upwards protruding, the buffer tube is the type of falling U, principle through the linker, when the liquid level in the liquid collecting tank is not higher than the bellied highest end in buffer tube middle part, through the height at second cylinder adjustment buffer tube middle part, make the bellied liquid level in buffer tube middle part be less than in the liquid collecting tank, when the second solenoid valve is opened, thereby make liquid admixture through the buffering of buffer tube, the velocity of flow and the flow that liquid admixture got into the weighing hopper have been adjusted, thereby the weighing precision of weighing hopper has further been improved.
The present invention in a preferred example may be further configured to: the liquid collecting box is provided with an observation port.
Through adopting above-mentioned technical scheme, through being provided with the viewing aperture, be convenient for observe the stock solution condition in the collection liquid case.
The present invention in a preferred example may be further configured to: the first liquid outlet pipe, the second liquid outlet pipe and the buffer pipe are corrugated pipes.
Through adopting above-mentioned technical scheme, all set up first drain pipe, second drain pipe and buffer pipe into the bellows to make first drain pipe, second drain pipe and buffer pipe all can freely stretch out and draw back under the effect of external force.
In summary, the invention includes at least one of the following beneficial technical effects:
1. in the process of weighing the liquid admixture, the floating ball is firstly placed down through the lifting device, the end part of the first liquid outlet pipe is placed to the bottom of the weighing hopper through the floating ball, then the water pump is started, the liquid admixture in the liquid storage tank is pumped into the weighing hopper through the first liquid outlet pipe by the water pump, in the process, because the floating ball is arranged at one end of the first liquid outlet pipe communicated with the weighing hopper, the floating ball can drive the first liquid outlet pipe to ascend along with the rise of the liquid level in the weighing hopper along with the increase of the liquid admixture in the weighing hopper, so that the liquid outlet pipe of the first liquid outlet pipe is always equal to the liquid level in the weighing hopper under the action of the floating ball, further, the liquid admixture cannot have larger impact force on the weighing hopper in the process of feeding the liquid into the weighing hopper, the accurate weighing value of the weighing hopper is improved, and before the admixture reaches the designated weighing weight, the water pump is turned off, and the floating ball is lifted by the lifting device, so that the weight of the floating ball and the first liquid outlet pipe is prevented from increasing the weight of the weighing hopper;
2. when the liquid additive is added into the weighing hopper, the first electromagnetic valve is opened, so that the liquid additive in the liquid storage tank can enter the liquid collection tank for temporary storage, because the flow rate of the first liquid outlet pipe is larger, when the liquid admixture in the weighing hopper is about to reach the weighing capacity, when the liquid admixture is continuously injected into the weighing hopper through the first liquid outlet pipe, the weight of the liquid admixture in the weighing hopper is easily caused to exceed the required weight, at the moment, the water pump is closed, the first liquid outlet pipe and the floating ball are lifted by the lifting device, then the second electromagnetic valve is opened, the second electromagnetic valve controls the flow rate of the liquid admixture, thereby slowing down the liquid admixture entering the weighing hopper, slowly adding the liquid admixture into the weighing hopper, and before the weight of the liquid admixture in the weighing hopper reaches the designated weighing weight, closing the second electromagnetic valve, so that the weight of the liquid admixture weighed by the weighing hopper is more accurate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a concrete liquid admixture metering system.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a cross-sectional view of a weighing hopper.
In the figure, 1, a frame; 2. a weighing hopper; 3. a liquid storage tank; 4. a liquid outlet; 5. a pumping device; 51. a water pump; 52. a first liquid outlet pipe; 6. a tension sensor; 7. a floating ball; 8. a lifting device; 81. a winch; 82. connecting ropes; 9. a three-way pipe; 10. a liquid collection tank; 11. a first solenoid valve; 12. a second liquid outlet pipe; 13. a second solenoid valve; 14. a cross bar; 15. a slide bar; 16. grooving; 17. a first cylinder; 18. a diagonal bar; 19. a guide ramp; 20. a bevel edge; 21. a diversion trench; 22. a buffer tube; 23. a second cylinder; 24. a viewing port.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the concrete liquid admixture metering system disclosed by the invention comprises a rack 1, wherein a liquid storage tank 3 and a weighing hopper 2 are arranged on the rack 1 from top to bottom, the liquid storage tank 3 is welded and fixed on the rack 1, and the upper end of the weighing hopper 2 is hung on the rack 1 through two tension sensors 6 respectively.
Referring to fig. 1 and 3, the liquid storage tank 3 is communicated with the weighing hopper 2 through the pumping device 5, the pumping device 5 comprises a water pump 51 and a first liquid outlet pipe 52, and the water pump 51 is communicated with the liquid storage tank 3. The three-way pipe 9 is communicated between the first liquid outlet pipe 52 and the water pump 51, the three-way pipe 9 is provided with an output end and two input ends, the output end of the three-way pipe 9 is communicated with the water pump 51, one input end of the three-way pipe 9 is communicated with the first liquid outlet pipe 52, the other input end of the three-way pipe 9 is communicated with the liquid collecting box 10, and the liquid collecting box 10 is provided with an observation port 24 convenient for observing the internal capacity of the liquid collecting box 10. A first electromagnetic valve 11 for controlling the three-way pipe 9 to be communicated with the liquid collecting tank 10 is arranged at the communication position of the three-way pipe 9 and the liquid collecting tank 10, a second liquid outlet pipe 12 communicated with the weighing hopper 2 is arranged in the liquid collecting tank 10 in a communication mode, and a second electromagnetic valve 13 for controlling the flow rate of the second liquid outlet pipe 12 is arranged on the second liquid outlet pipe 12. In this embodiment, first effluent channel 52 and second effluent channel 12 are each bellows that facilitate expansion and contraction. One end of the first liquid outlet pipe 52 communicated with the weighing hopper 2 is provided with a floating ball 7, and the liquid storage tank 3 is provided with a lifting device 8 for lifting the floating ball 7. The lifting device 8 includes a hoist 81 and a connecting rope 82. The winch 81 is mounted on the liquid storage tank 3 through a bolt, and two ends of the connecting rope 82 are connected to the winch 81 and the floating ball 7 respectively.
With reference to fig. 1 and 2, a buffer tube 22 is disposed between the liquid collecting tank 10 and the second liquid outlet pipe 12, the middle of the buffer tube 22 protrudes upward, and in this embodiment, the buffer tube 22 has a U-shaped cross section and the buffer tube 22 is a corrugated tube. The two ends of the buffer tube 22 are respectively communicated with the bottom of the liquid collecting tank 10 and the second liquid outlet tube 12, and a second cylinder 23 used for lifting the middle part of the buffer tube 22 along the vertical direction is installed on the machine frame 1 through bolts. The horizontal welding of collection liquid case 10 has the horizontal pole 14 towards 2 inner walls of weighing hopper, wears to establish and sliding connection has in the horizontal pole 14 to wear out the slide bar 15 that horizontal pole 14 kept away from collection liquid case 10 one end. The cross rod 14 is provided with a slot 16 communicated with the inside of the cross rod along the length direction of the cross rod, a first air cylinder 17 is installed on the liquid collecting box 10 along the direction perpendicular to the cross rod 14 through a bolt, a piston rod of the first air cylinder 17 penetrates through the slot 16 through an inclined rod 18 to be connected with one end, close to the liquid collecting box 10, of the sliding rod 15, two ends of the inclined rod 18 are respectively connected with the piston rod of the first air cylinder 17 and the sliding rod 15 in a hinged mode, and one end, far away from the liquid collecting box 10, of the second liquid outlet pipe 12 is connected with one end.
With reference to fig. 1 and 2, a guide ramp 19 is disposed in the weighing hopper 2 along the vertical direction, in the embodiment, the cross section of the guide ramp 19 is a right triangle, and a bevel 20 for connecting the inner wall of the weighing hopper 2 and the bottom wall of the weighing hopper 2 is disposed on the guide ramp 19. The inclined edge 20 is provided with a diversion trench 21 along the length direction of the inclined edge, and one end of the second liquid outlet pipe 12 far away from the liquid collecting tank 10 is opposite to the upper end of the diversion trench 21.
The working process of the embodiment is as follows: in the process of weighing the liquid admixture, the winch 81 is started, and the winch 81 lowers the liquid outlet ends of the floating ball 7 and the first liquid outlet pipe 52 to the bottom of the weighing hopper 2 through the connecting rope 82. Then the water pump 51 is started, the water pump 51 pumps the liquid admixture in the liquid storage tank 3 into the weighing hopper 2 through the first liquid outlet pipe 52, and in the process, because the floating ball 7 is arranged at the end, communicated with the weighing hopper 2, of the first liquid outlet pipe 52, the floating ball 7 can drive the first liquid outlet pipe 52 to ascend along with the rise of the liquid level in the weighing hopper 2 along with the increase of the liquid admixture in the weighing hopper 2, so that the liquid outlet pipe of the first liquid outlet pipe 52 is always equal to the liquid level in the weighing hopper 2 under the action of the floating ball 7. At the same time, the first electromagnetic valve 11 is opened so that the liquid admixture in the liquid storage tank 3 can enter the liquid collection tank 10 for temporary storage.
When the liquid admixture in the weighing hopper 2 is about to reach the weighing capacity, the liquid admixture in the weighing hopper 2 is easy to exceed the required weight when the liquid admixture is continuously injected into the weighing hopper 2 through the first liquid outlet pipe 52, at the moment, the water pump 51 is closed, and the first liquid outlet pipe 52 and the floating ball 7 are lifted through the lifting device 8, so that the liquid outlet pipe and the floating ball 7 of the first liquid outlet pipe 52 are separated from the liquid level in the weighing hopper 2.
And starting the first air cylinder 17, wherein the first air cylinder 17 pushes the sliding rod 15 to slide outwards along the length direction of the cross rod 14 through the inclined rod 18, so that the sliding rod 15 drives one end, away from the liquid collecting box 10, of the second liquid outlet pipe 12 to abut against the inner wall of the weighing hopper 2. And starting the first air cylinder 17, wherein the first air cylinder 17 pushes the slide rod 15 to slide outwards along the length direction of the cross rod 14 through the inclined rod 18, so that the slide rod 15 drives one end, away from the liquid collecting box 10, of the second liquid outlet pipe 12 to abut against a flow guide groove 21 in the weighing hopper 2. Open second solenoid valve 13 to through observing observation port 24, adjust the height in buffer tube 22 middle part through second cylinder 23, make the bellied height in buffer tube 22 middle part be less than the liquid level in header tank 10, thereby slow down liquid admixture and enter into weighing hopper 2, slowly add liquid admixture into weighing hopper 2, before the weight of liquid admixture reaches appointed weighing weight in weighing hopper 2, close second solenoid valve 13, thereby make the weight of the liquid admixture of weighing hopper 2 weighing more accurate.
The second electromagnetic valve 13 controls the flow velocity of the liquid admixture, so that the liquid admixture is slowed down to enter the weighing hopper 2, the liquid admixture is slowly added into the weighing hopper 2, the second electromagnetic valve 13 is closed before the weight of the liquid admixture in the weighing hopper 2 reaches the designated weighing weight, the metering of the liquid admixture is completed, and finally the liquid outlet 4 is opened, so that the weighed liquid admixture is discharged.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a concrete liquid adds agent measurement system outward, includes frame (1), be provided with scale hopper (2) and liquid reserve tank (3) that are used for storing the admixture on frame (1), liquid reserve tank (3) lower extreme is provided with liquid outlet (4), its characterized in that: the liquid storage tank (3) is communicated with the weighing hopper (2) through the pumping device (5), the pumping device (5) comprises a water pump (51) and a first liquid outlet pipe (52), the water pump (51) is communicated with the liquid storage tank (3), two ends of the first liquid outlet pipe (52) are communicated with the water pump (51) and the weighing hopper (2) respectively, the upper end of the weighing hopper (2) is connected to the rack (1) in a hanging mode through a tension sensor (6), a floating ball (7) is arranged at one end, communicated with the weighing hopper (2), of the first liquid outlet pipe (52), and a lifting device (8) used for lifting the floating ball (7) is arranged on the liquid storage tank (3).
2. The concrete liquid admixture metering system of claim 1, wherein: the lifting device (8) comprises a winch (81) and a connecting rope (82), the winch (81) is arranged on the liquid storage tank (3), and two ends of the connecting rope (82) are connected to the winch (81) and the floating ball (7) respectively.
3. The concrete liquid admixture metering system of claim 1, wherein: a three-way pipe (9) is communicated and arranged between the first liquid outlet pipe (52) and the water pump (51), the three-way pipe (9) is provided with an output end and two input ends, the output end of the three-way pipe (9) is communicated with the water pump (51), one input end of the three-way pipe (9) is communicated with the first liquid outlet pipe (52), the other input end of the three-way pipe (9) is communicated with a liquid collecting box (10), a first electromagnetic valve (11) is arranged at the communication position of the three-way pipe (9) and the liquid collecting box (10), the liquid collecting box (10) is communicated and provided with a second liquid outlet pipe (12) communicated with the weighing hopper (2), and a second electromagnetic valve (13) used for controlling the flow rate of the second liquid outlet pipe (12) is arranged on the second liquid outlet pipe (12).
4. A concrete liquid admixture metering system as claimed in claim 3, wherein: the liquid collecting box is characterized in that a cross rod (14) facing the inner wall of the weighing hopper (2) is transversely arranged on the liquid collecting box (10), a sliding rod (15) penetrating out of one end of the cross rod (14) and far away from one end of the liquid collecting box (10) is arranged in the cross rod (14) in a penetrating mode and connected in a sliding mode, a notch (16) communicated with the inside of the cross rod (14) is formed in the cross rod (14) along the length direction of the cross rod, a first air cylinder (17) is arranged in the direction perpendicular to the cross rod (14) of the liquid collecting box (10), a piston rod of the first air cylinder (17) penetrates through the notch (16) through an inclined rod (18) and is connected with one end, close to the liquid collecting box (10), of the slide rod (15), of the inclined rod (18) is rotatably connected with a piston rod of the first air cylinder (17) and the sliding rod (15) at two ends.
5. The concrete liquid admixture metering system of claim 4, wherein: the scale hopper is characterized in that a guide sloping platform (19) is arranged in the scale hopper (2), a sloping edge (20) used for connecting the inner wall of the scale hopper (2) and the bottom wall of the scale hopper (2) is arranged on the guide sloping platform (19), a diversion trench (21) is arranged on the sloping edge (20) along the upper end of the sloping edge, and one end, far away from the liquid collecting box (10), of the second liquid outlet pipe (12) is just opposite to the upper end of the diversion trench (21).
6. A concrete liquid admixture metering system as claimed in claim 3, wherein: liquid collecting tank (10) with be provided with buffer tube (22) between second drain pipe (12), buffer tube (22) middle part is upwards protruding, the both ends of buffer tube (22) are linked together with bottom and second drain pipe (12) of liquid collecting tank (10) respectively, be provided with second cylinder (23) that are used for buffer tube (22) middle part to go up and down along vertical direction on frame (1).
7. A concrete liquid admixture metering system as claimed in claim 3, wherein: the liquid collecting box (10) is provided with an observation port (24).
8. The concrete liquid admixture metering system of claim 6, wherein: the first liquid outlet pipe (52), the second liquid outlet pipe (12) and the buffer pipe (22) are all corrugated pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979420.4A CN112109207A (en) | 2020-09-17 | 2020-09-17 | Concrete liquid external additive metering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979420.4A CN112109207A (en) | 2020-09-17 | 2020-09-17 | Concrete liquid external additive metering system |
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| CN112109207A true CN112109207A (en) | 2020-12-22 |
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| CN202010979420.4A Pending CN112109207A (en) | 2020-09-17 | 2020-09-17 | Concrete liquid external additive metering system |
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| CN110293638A (en) * | 2019-06-28 | 2019-10-01 | 重庆精榜高分子材料有限公司 | Liquid material automatic metering mechanism |
| CN211250847U (en) * | 2019-10-26 | 2020-08-14 | 郑州新水工机械有限公司 | Accurate weighing device for liquid admixture of mixing plant |
| CN210972388U (en) * | 2019-11-06 | 2020-07-10 | 湖北中烟工业有限责任公司 | Spices jar discharging device |
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Application publication date: 20201222 |