CN213533237U

CN213533237U - Metering device for concrete admixture

Info

Publication number: CN213533237U
Application number: CN202022148924.XU
Authority: CN
Inventors: 杨东锋; 杨文豪; 刘鑫
Original assignee: Shaanxi Hanjia Construction Technology Co ltd
Current assignee: Shaanxi Hanjia Construction Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-06-25
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to a metering device for concrete admixture, it includes the support frame, keeps in fill, weighing bucket and electron weighing apparatus, the fill of keeping in reaches the weighing bucket install in on the support frame, the weighing bucket be connected with rather than the inlet pipe and the discharging pipe of inside intercommunication, the inlet pipe is kept away from weighing bucket one end with it connects to keep in the fill, the inlet pipe with it is provided with first ooff valve to keep in fill hookup location, the inlet pipe with weighing bucket hookup location is provided with the second ooff valve, the discharging pipe is connected with the third ooff valve, the electron weighing apparatus install in on the weighing bucket. This application has the effect that can improve the measurement accuracy of weighing hopper.

Description

Metering device for concrete admixture

Technical Field

The application relates to the field of metering devices, in particular to a metering device for a concrete admixture.

Background

The concrete admixture is a chemical substance which is added in the process of stirring the concrete, accounts for less than 5 percent of the mass of the cement and can obviously improve the performance of the concrete. The physical form of the additive is powdery solid and viscous liquid.

The Chinese utility model patent with application number CN201921547691.1 discloses a metering device for concrete admixture, relates to a metering device, solves the problem that the prior art needs to meter one admixture before metering the other admixture, has low working efficiency, which comprises a metering cylinder, a bracket for supporting the metering cylinder, an electronic weighing apparatus arranged on the metering cylinder and used for metering the weight of the metering cylinder, the metering cylinder is provided with a feeding pool for feeding the metering cylinder, the bottom of the metering cylinder is connected and communicated with a discharging pipe, be equipped with control valve one on the discharging pipe, a metering cylinder is established to three, be equipped with two baffles in the feeding pond, two the baffle will the feeding pond divide into three feed space, three the feed space bottom all be equipped with communicate in the inlet pipe of a metering cylinder, be equipped with control valve two on the inlet pipe.

In view of the above-mentioned related art, the inventor believes that when the required weight is reached in the measuring tank, the second control valve is closed, and at this time, part of the admixture in the feeding pipe between the second control valve and the measuring tank is still added into the measuring tank, which affects the weighing precision.

SUMMERY OF THE UTILITY MODEL

In order to improve the measurement accuracy of weighing hopper, this application provides a concrete admixture is with metering device.

The application provides a concrete admixture adopts following technical scheme with metering device:

the utility model provides a concrete is metering device for admixture which characterized in that: including the support frame, keep in fill, batch meter and reach the electronic weighing apparatus, keep in fill and reach the batch meter install in on the support frame, the batch meter is connected with inlet pipe and discharging pipe rather than inside intercommunication, the inlet pipe is kept away from batch meter one end with it connects to keep in the fill, the inlet pipe with it is provided with first ooff valve to keep in fill hookup location, the inlet pipe with batch meter hookup location is provided with the second ooff valve, the discharging pipe is connected with the third ooff valve, the electronic weighing apparatus install in on the batch meter.

By adopting the technical scheme, the additive flows into the metering barrel from the temporary storage hopper through the feeding pipe during use, the electronic weighing instrument is used for measuring the weight of the additive in the metering barrel, when the weight of the additive in the metering barrel is close to the required weighing weight, the first switch valve is controlled to be reduced or closed, and simultaneously, when the weight of the additive in the metering barrel reaches the required weighing weight, the second switch valve is closed to finish the weighing of the additive; then the third switch valve is opened, and the weighed additive with a certain weight is transferred to a required position from the metering barrel, so that subsequent processing is facilitated.

Optionally, the inlet pipe is connected with the honeycomb duct rather than inside intercommunication, the inlet pipe with honeycomb duct hookup location is provided with the fourth ooff valve.

Through adopting above-mentioned technical scheme, the water-reducing agent discharge in the inlet pipe is convenient for in the setting of honeycomb duct and fourth ooff valve, avoids the water-reducing agent in the inlet pipe to take place rotten, condense etc. and is unfavorable for the long-term use of inlet pipe.

Optionally, the honeycomb duct slope sets up, just the honeycomb duct is kept away from inlet pipe one end be less than it with one end is connected to the inlet pipe.

Through adopting above-mentioned technical scheme, the honeycomb duct is kept away from the slope of inlet pipe one end and is set up downwards, is favorable to discharging the water-reducing agent in the inlet pipe completely.

Optionally, the feed pipe is connected with an airflow pipe communicated with the interior of the feed pipe, a one-way valve is arranged at a connection position of the feed pipe and the airflow pipe, and the feed pipe is connected with an air pump.

Through adopting above-mentioned technical scheme, the inlet pipe still is connected with the air current pipe rather than the intercommunication, accelerates the water-reducing agent through the air current and discharges from the honeycomb duct, improves the cleaning efficiency of the water-reducing agent in the inlet pipe.

Optionally, the outer wall of the temporary storage hopper is connected with a driving motor, an output shaft of the driving motor penetrates through the side wall of the temporary storage hopper and is coaxially connected with a stirring shaft, and the stirring shaft is connected with stirring blades.

Through adopting above-mentioned technical scheme, be provided with (mixing) shaft and stirring vane in the fill of keeping in to drive the (mixing) shaft through driving motor and rotate, thereby realize improving the misce bene degree of admixture to the stirring of the admixture in the fill of keeping in, can reduce the possibility that the admixture takes place to deposit simultaneously.

Optionally, the stirring shaft is vertically arranged, the stirring blade is far away from a scraping plate fixedly connected with the end part of one end of the stirring shaft, and the scraping plate is abutted to the inner wall of the temporary storage hopper.

Through adopting above-mentioned technical scheme, agitator shaft connection has the scraper blade, and the scraper blade is used for clearing up the fill lateral wall of keeping in, reduces the admixture and attaches to the possibility of keeping in the fill inner wall, is convenient for clear up the fill of keeping in.

Optionally, the stirring blade is provided with a plurality of through holes.

By adopting the technical scheme, the through holes formed in the stirring blades can be used for the additives to pass through in the stirring process, so that the stirring effect on the additives is enhanced.

Optionally, the outer wall of the temporary storage hopper is wound with a heating wire, and a heat preservation layer is arranged outside the heating wire.

Through adopting above-mentioned technical scheme, control the temperature in the fill of keeping in through heating wire and heat preservation, also control the admixture temperature to reduce the admixture because the temperature is low takes place crystallization etc. excessively, influences the normal use effect of admixture.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first switch valve and the second switch valve are arranged at the end part of the feeding pipe, so that the weight of the admixture entering the metering barrel is accurately controlled;

2. the feeding pipe is connected with a flow guide pipe and an air blowing pipe, so that all additives in the feeding pipe can be cleaned conveniently;

3. be provided with (mixing) shaft and stirring vane in the fill of keeping in, stirring vane is connected with the scraper blade with the inner wall butt simultaneously, realizes keeping in the even stirring of the admixture in the fill.

Drawings

FIG. 1 is a schematic view showing the overall structure of a measuring apparatus for a concrete admixture according to an embodiment of the present application.

Fig. 2 is a cross-sectional view taken along a-a of fig. 1.

Description of reference numerals: 1. a support frame; 2. a temporary storage hopper; 3. a metering bucket; 4. an electronic scale; 5. a feed pipe; 6. a discharge pipe; 7. a first on-off valve; 8. a second on-off valve; 9. a third on-off valve; 10. a flow guide pipe; 11. a fourth switching valve; 12. an airflow duct; 13. an air pump; 14. a one-way valve; 15. a drive motor; 16. a stirring shaft; 17. a stirring blade; 171. a through hole; 18. a squeegee; 19. an electric heating wire; 20. and (7) an insulating layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses metering device for concrete admixture. Referring to fig. 1 and 2, the metering device comprises a frame, a temporary storage hopper 2 is welded on the top of the frame, and an inlet and an outlet are formed in the temporary storage hopper 2. The outer wall of the temporary storage hopper 2 is wound with a heating wire, the outer cover of the heating wire is provided with a heat preservation layer, and the heat preservation layer is made of polyurethane in the embodiment. The top of the temporary storage bucket 2 is provided with a driving motor 15, the shell of the driving motor 15 is connected with the top wall of the temporary storage bucket 2 through bolts, and the output shaft of the driving motor 15 vertically penetrates through the top wall of the temporary storage bucket 2 to stretch into the temporary storage bucket 2. The output shaft of the driving motor 15 is coaxially connected with a stirring shaft 16, the stirring shaft 16 is welded with stirring blades 17, the stirring blades 17 in the embodiment are provided with four pieces, a plurality of through holes 171 are formed in each stirring blade 17, and the stirring blades 17 are integrally connected with a scraping plate 18 which is abutted to the inner wall of the temporary storage hopper 2.

Referring to fig. 1 and 2, a metering bucket 3 is arranged below the temporary storage hopper 2, and the metering bucket 3 is mounted on the support frame 1 through bolts. The measuring barrel 3 is provided with an electronic weighing apparatus 4 through a bolt, and the electronic weighing apparatus is used for weighing the weight of the admixture in the measuring barrel 3. The welding of measuring pocket 3 has the inlet pipe 5 rather than inside intercommunication, and inlet pipe 5 is close to 3 one ends of measuring pocket and installs first ooff valve 7 through the flange, and inlet pipe 5 is close to 3 one ends of measuring pocket and installs the second installation valve through the flange, and first ooff valve 7 and second ooff valve 8 are used for controlling the intercommunication between measuring pocket 3 and the fill 2 of keeping in and close. One end of the metering barrel 3, which is far away from the lower part of the temporary storage hopper 2, is welded with a discharge pipe 6 communicated with the interior of the metering barrel, and the discharge pipe 6 is connected with a third switch valve 9 through a flange.

Referring to fig. 2, in order to clean up the residual admixture in the feeding pipe 5, the feeding pipe 5 is welded with an airflow pipe 12 communicated with the inside of the feeding pipe, one end of the airflow pipe 12, which is far away from the feeding pipe 5, is connected with an air pump 13 through a bolt, and the air pump 13 is installed on the support frame 1 through a bolt. In order to prevent the admixture in the feeding pipe 5 from flowing back to the airflow pipe 12, a check valve 14 is mounted on the airflow pipe 12 through a flange, and the airflow in the airflow pipe 12 flows to the feeding pipe 5 from the direction of the air pump 13. The inlet pipe 5 is welded with honeycomb duct 10 rather than inside intercommunication, and honeycomb duct 10 slope sets up, and honeycomb duct 10 keeps away from inlet pipe 5 one end and is less than its one end of being connected with inlet pipe 5, and honeycomb duct 10 has fourth ooff valve 11 through flange joint. In this embodiment, the first switching valve 7, the second switching valve 8, the third switching valve 9, and the fourth switching valve 11 are all solenoid valves.

The implementation principle of the metering device for the concrete admixture in the embodiment of the application is as follows: the produced admixture is added into a temporary storage box, and an output shaft of a driving motor 15 rotates to drive a stirring shaft 16, stirring blades 17 and a scraper 18 to rotate. And opening the first switch valve 7 and the second switch valve 8, observing the numerical value on the electronic weighing instrument 4, controlling the first switch valve 7 to gradually reduce until closing when the numerical value displayed by the electronic weighing instrument 4 is more than 90% of the required weighing mass, and closing the second switch valve 8 when the numerical value displayed by the electronic weighing instrument 4 is the required weighing mass to finish weighing the admixture. When the metering barrel 3 is not used for a long time or other substances need to be weighed, the first switch valve 7 and the second switch valve 8 are controlled to be closed, then the air pump 13 and the one-way valve 14 are opened, air is introduced into the feeding pipe 5 through the airflow pipe 12, meanwhile, the fourth switch valve 11 is opened, the admixture in the feeding pipe 5 is discharged from the guide pipe 10, and the feeding pipe 5 is cleaned.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a concrete is metering device for admixture which characterized in that: including support frame (1), the fill of keeping in (2), measuring pocket (3) and reach electronic weighing apparatus (4), the fill of keeping in (2) reaches measuring pocket (3) install in on support frame (1), measuring pocket (3) are connected with inlet pipe (5) and discharging pipe (6) rather than inside intercommunication, inlet pipe (5) are kept away from measuring pocket (3) one end with fill (2) of keeping in are connected, inlet pipe (5) with fill (2) hookup location of keeping in is provided with first ooff valve (7), inlet pipe (5) with measuring pocket (3) hookup location is provided with second ooff valve (8), discharging pipe (6) are connected with third ooff valve (9), electronic weighing apparatus (4) install in on measuring pocket (3).

2. The metering device for the concrete admixture according to claim 1, wherein: the inlet pipe (5) are connected with a flow guide pipe (10) communicated with the inside of the inlet pipe, and a fourth switch valve (11) is arranged at the connecting position of the inlet pipe (5) and the flow guide pipe (10).

3. The metering device for the concrete admixture according to claim 2, wherein: honeycomb duct (10) slope sets up, just honeycomb duct (10) are kept away from inlet pipe (5) one end be less than it with inlet pipe (5) are connected one end.

4. The metering device for the concrete admixture according to claim 3, wherein: the air flow pipe (12) communicated with the interior of the feeding pipe (5) is connected to the feeding pipe (5), a one-way valve (14) is arranged at the connecting position of the feeding pipe (5) and the air flow pipe (12), and the air pump (13) is connected to the feeding pipe (5).

5. The metering device for the concrete admixture according to claim 1, wherein: the outer wall of the temporary storage hopper (2) is connected with a driving motor (15), an output shaft of the driving motor (15) penetrates through the side wall of the temporary storage hopper (2) and is coaxially connected with a stirring shaft (16), and the stirring shaft (16) is connected with stirring blades (17).

6. The metering device for the concrete admixture according to claim 5, wherein: the stirring shaft (16) is vertically arranged, the stirring blade (17) is far away from the end part of one end of the stirring shaft (16) and is fixedly connected with a scraper (18), and the scraper (18) is abutted against the inner wall of the temporary storage hopper (2).

7. The metering device for the concrete admixture according to claim 5, wherein: the stirring blade (17) is provided with a plurality of through holes (171).

8. The metering device for the concrete admixture according to claim 1, wherein: the outer wall of the temporary storage hopper (2) is wound with an electric heating wire (19), and a heat preservation layer (20) is arranged outside the electric heating wire (19).