CN218948078U - Anti-overflow device of additive metering scale and additive adding system - Google Patents

Abstract

The application provides an admixture metering scale anti-overflow device and admixture adding system, relates to engineering machine tool technical field. The anti-overflow device of the additive metering scale comprises a metering scale body, an overflow pipe and a reflux assembly; the metering balance body is internally provided with a containing space for storing the additive; the overflow pipe is arranged on the metering scale body and communicated with the accommodating space; the reflux assembly is arranged on one side of the weighing scale body, the material receiving port of the reflux assembly is positioned below the liquid outlet of the overflow pipe, the material receiving port of the reflux assembly is used for receiving the additive discharged by the overflow pipe, and the discharge port of the reflux assembly is used for being externally connected with the collecting device. The overflow preventing device of the additive metering scale can collect overflowed additive in time, and effectively prevent the influence of the leakage of the additive on the surrounding environment; meanwhile, the collected additive can be recycled again, so that the waste of the additive is avoided.

Description

Anti-overflow device of additive metering scale and additive adding system

Technical Field

The application relates to the technical field of engineering machinery, in particular to an additive metering scale overflow preventing device and an additive adding system.

Background

Concrete mixing plants are used for the production of concrete. Because the requirements of different engineering operations on concrete are different, in the production process of the concrete, the additive, water and the like are required to be strictly proportioned so as to ensure that the produced concrete meets the use requirements of corresponding engineering.

In the existing concrete mixing plant, the metering work of the admixture is finished through the admixture weighing system, and in the conventional case, when an admixture balance in the weighing system detects that the metering of the admixture reaches a set metering value, an admixture pump stops, so that the feeding of the admixture to the admixture balance is stopped, and the metering work of the admixture is finished once.

However, during actual use, both failure of the additive pump control and failure of the sensor may cause overflow of the additive after the additive in the additive scale is filled. Because the admixture is usually liquid with larger smell, leakage of the admixture can greatly influence the environment of the whole station, and the current common mode is to use a camera to aim at the admixture scale for monitoring, and to manually process after the admixture scale overflows. The manual monitoring workload is large, and the monitoring discovery party can perform manual treatment after overflow, cannot perform timely treatment, can only reduce pollution, and cannot stop pollution.

Disclosure of Invention

The utility model aims to provide an admixture weighing scale anti-overflow device and admixture adding system for solve the not enough that exists among the prior art.

To achieve the above object, in a first aspect, the present application provides an admixture weighing scale overflow preventing device, comprising:

the metering balance body is internally provided with a containing space for storing an additive;

the overflow pipe is arranged on the weighing scale body and communicated with the accommodating space; and

the reflux assembly is arranged on one side of the metering balance body, a material receiving port of the reflux assembly is positioned below a liquid outlet of the overflow pipe and used for receiving the additive discharged by the overflow pipe, and a discharge port of the reflux assembly is used for being externally connected with a collecting device.

As a further improvement of the above technical scheme:

with reference to the first aspect, in one possible implementation manner, the liquid inlet of the overflow pipe is higher than the liquid level line when the accommodating space is maximally metered.

With reference to the first aspect, in one possible implementation manner, the pipe diameter of the overflow pipe is greater than or equal to the pipe diameter of the feed pipe of the weighing scale body.

With reference to the first aspect, in one possible implementation manner, the overflow pipe includes a transverse pipe section and a vertical pipe section that are connected in sequence;

the transverse pipe section is arranged on the metering scale body and is communicated with the accommodating space;

the vertical pipe section is provided with the liquid outlet, and the liquid outlet faces downwards;

wherein, the bore of the receiving port is larger than the bore of the liquid outlet.

With reference to the first aspect, in one possible implementation manner, the overflow pipe includes:

a plurality of transverse pipe sections which are arranged on the weighing scale body and distributed along the vertical direction, a preset distance is reserved between two adjacent transverse pipe sections, and each transverse pipe section is provided with a control valve respectively; and

the vertical pipe sections are respectively connected with the plurality of horizontal pipe sections, each vertical pipe section is provided with a liquid outlet, and the liquid outlets face downwards;

the caliber of the receiving port is larger than that of the liquid outlet, and the liquid outlet is lower than the liquid inlet of the transverse pipe section positioned at the lowest part.

With reference to the first aspect, in one possible implementation, the standpipe extends into the return assembly through the material receiving port.

With reference to the first aspect, in one possible implementation manner, the reflow assembly includes:

the upper end of the receiving container is provided with the receiving opening, and the caliber of the receiving opening is larger than that of the liquid outlet; and

one end of the return pipe is connected with the receiving container, and the other end of the return pipe is used for being externally connected with the collecting device.

With reference to the first aspect, in one possible implementation manner, the receiving container is a funnel-shaped or columnar container.

With reference to the first aspect, in a possible implementation manner, the backflow assembly further includes a detector, where the detector is disposed on the receiving container or the backflow pipe, and the detector is configured to signal that the admixture overflows when the admixture overflows.

In order to achieve the above object, in a second aspect, the present application further provides an additive adding system, including a storage tank, a coarse and fine metering device, a feed pipe, a feed pump, and an anti-overflow device of the additive metering scale according to the first aspect;

the storage box, the feed pump and the coarse and fine metering device are sequentially connected through the feed pipe, the coarse and fine metering device is arranged above the metering scale body, and the coarse and fine metering device is used for carrying out primary metering on the additive and then transferring the additive to the metering scale body for secondary metering;

and a discharge hole of the reflux component in the additive metering balance overflow prevention device is connected with the storage box.

Compared with the prior art, the beneficial effect of this application:

the application provides an admixture metering balance anti-overflow device and admixture addition system, wherein, admixture metering balance anti-overflow device is through setting up the overflow pipe on the metering balance body, because overflow pipe and this internal accommodation space intercommunication of metering balance, so when the admixture addition system breaks down and leads to the feed pump to run always, the accommodation space of metering balance body can last to have the admixture to add, after the liquid level of admixture reaches the inlet of overflow pipe in the accommodation space, the liquid outlet of admixture accessible overflow pipe gets into the receiving mouth of backflow subassembly, then lead to backflow subassembly to carry the admixture that overflowed to collection device and collect, the container can carry out reuse. The overflow preventing device of the additive metering scale can collect overflowed additive in time, and effectively prevent the influence of the leakage of the additive on the surrounding environment; meanwhile, the collected additive can be recycled again, so that the waste of the additive is avoided.

In addition, the backward flow subassembly is arranged in one side of weighing scale body to the receiving mouth is located the below of the liquid outlet of overflow pipe, so in this application, the backward flow subassembly does not have direct contact with the weighing scale body, thereby avoids causing the measurement to interfere with the weighing scale body, is used for guaranteeing the measurement precision.

Additional features and advantages of the present application will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate only some embodiments of the application and are therefore not to be considered limiting of its scope, for the purpose of providing additional related drawings from which the utility model may be practiced by those of ordinary skill in the art without the exercise of inventive faculty. In the drawings:

FIG. 1 illustrates a modular schematic of an admixture dosage scale overflow prevention device provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of an additive adding system according to an embodiment of the present application;

FIG. 3 shows an enlarged partial schematic view at A in FIG. 2;

FIG. 4 is a schematic diagram of another additive addition system according to an embodiment of the present application;

fig. 5 is a schematic structural view of the overflow pipe and the receiving container according to the embodiment of the present application;

fig. 6 is a schematic structural view of another overflow pipe matched with a receiving container according to the embodiment of the present application.

Reference numerals illustrate:

100. a weighing scale body; 200. an overflow pipe; 201. a liquid outlet; 210. a transverse pipe section; 220. a vertical pipe section; 230. an elbow; 240. a control valve; 300. a reflow assembly; 301. a material receiving port; 310. a receiving container; 320. a return pipe; 330. a detector; 400. a collecting device; 500. a storage box; 600. coarse and fine metering device; 700. a feed pipe; 800. and a feed pump.

Detailed Description

The following describes in detail the implementation of the embodiments of the present application with reference to the accompanying drawings. It should be understood that the detailed description is presented herein by way of illustration and explanation of the present application examples, and is not intended to limit the present application examples.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

In the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The present application will be described in detail below with reference to the attached drawings in conjunction with exemplary embodiments.

Example 1

Referring to fig. 1, 2 and 3, the present embodiment provides an anti-overflow device of an admixture weighing scale, which is applied to an admixture adding system. The anti-overflow device of the additive metering scale is used for preventing the additive from overflowing when the additive adding system fails.

The anti-overflow device of the admixture weighing scale provided by the embodiment comprises a weighing scale body 100, an overflow pipe 200 and a backflow assembly 300. The weighing scale body 100 is used for accurately weighing the admixture, and the weighed admixture is put into a stirring device to be stirred.

Wherein, a containing space (not shown) for storing the additive is provided inside the weighing scale body 100. The overflow pipe 200 is disposed on the weighing scale body 100 and is communicated with the accommodating space, and the overflow pipe 200 has a liquid inlet (not shown) and a liquid outlet 201. The reflux assembly 300 is disposed on one side of the weighing scale body 100, the reflux assembly 300 has a material receiving opening 301 and a material outlet (not shown), the material receiving opening 301 of the reflux assembly 300 is located below the liquid outlet 201 of the overflow pipe 200, the material receiving opening 301 of the reflux assembly 300 is used for receiving the additive discharged from the overflow pipe 200, and the material outlet of the reflux assembly 300 is used for externally connecting the collecting device 400.

It can be understood that when the additive adding system fails, the additive is continuously injected into the accommodating space of the weighing scale body 100 when the additive is not controlled, and when the liquid level of the additive in the accommodating space reaches the liquid inlet of the overflow pipe 200, the additive can enter the material receiving port 301 of the reflux assembly 300 through the liquid outlet 201 of the overflow pipe 200, and then the overflowed additive is conveyed to the collecting device 400 by the reflux assembly 300 for collection, so that the additive can be reused.

Compared with the prior art, the overflow preventing device of the additive metering scale can collect overflowed additive in time, and effectively prevent the influence of the leakage of the additive on the surrounding environment; meanwhile, the collected additive can be recycled again, so that the waste of the additive is avoided.

In addition, in the present embodiment, the reflow assembly 300 is disposed on one side of the weighing apparatus body 100, and the material receiving opening 301 is located below the liquid outlet 201 of the overflow pipe 200, so in the present embodiment, the reflow assembly 300 may be supported by an external support, and thus the reflow assembly 300 is not in direct contact with the weighing apparatus body 100, so as to avoid the interference on the weighing of the weighing apparatus body 100, and ensure the weighing accuracy.

Optionally, the inlet of the overflow pipe 200 is higher than the liquid level line when the accommodating space is maximally metered. Thus, the level of the admixture in the receiving space can only flow out of the overflow pipe 200 when the level exceeds the level line at maximum metering, and then be collected by the return assembly 300.

Optionally, the pipe diameter of the overflow pipe 200 is greater than or equal to the pipe diameter of the feed pipe 700 of the scale body 100. It can be appreciated that the pipe diameter of the overflow pipe 200 is set to be greater than or equal to the pipe diameter of the feed pipe 700, so that the overflow flow rate of the overflow pipe 200 is ensured to be consistent with the feed flow rate of the feed pipe 700, and the overflow of the liquid in the accommodating space of the weighing scale body 100 due to the overlarge feed flow rate is prevented.

Referring to fig. 1, 2 and 3, the return assembly 300 includes a receiving container 310 and a return tube 320. Wherein the upper end of the receiving container 310 is provided with the receiving port 301, and the caliber of the receiving port 301 is larger than that of the liquid outlet 201, so that the additive discharged from the liquid outlet 201 of the overflow pipe 200 can fall into the receiving port 301 completely, thereby preventing the additive from leaking. Wherein the receiving container 310 is in non-contact fit with the overflow pipe 200, thereby avoiding the influence on the metering.

One end of the return pipe 320 is connected to the receiving container 310, and the other end of the return pipe 320 is adapted to be externally connected to the collecting device 400. So that the admixture falling into the receiving vessel 310 flows along the return pipe 320 into the collecting device 400 to be collected for reuse, avoiding waste.

Optionally, the pipe diameter of the return pipe 320 is greater than or equal to the pipe diameter of the overflow pipe 200, so as to prevent the additive discharged from the overflow pipe 200 from being stored in the receiving container 310.

Referring to fig. 5, in some embodiments, the receiving container 310 is a funnel-shaped container, and the inner diameter of the funnel-shaped container is gradually reduced, so that the receiving is convenient, and the flow guiding effect is also achieved.

In other embodiments, as shown in FIG. 3, the receiving container 310 is a cylindrical container with a uniform inner diameter, which also facilitates receiving the admixture discharged from the outlet 201 of the overflow tube 200.

Alternatively, the cylindrical container may be selected as a receiving cup or receiving bowl.

In some embodiments, the reflow assembly 300 further includes a detector 330, where the detector 330 is disposed on the receiving container 310, and the detector 330 is configured to send a signal for overflow of the additive when detecting the overflowed additive, where the signal can be fed back to the controller of the additive adding system, and the controller is configured to send a prompt signal to prompt the operator that the system is faulty.

Alternatively, the detector 330 may be selected to be a camera, and the receiving container 310 may be visually inspected by the camera and whether the additive is received in the receiving container 310 may be fed back.

Alternatively, the detector 330 may be a tension sensor disposed above the receiving container 310 and connected to the receiving container 310, and when the additive is introduced into the receiving container 310, the tension sensor senses a weight change of the receiving container 310, thereby judging that the additive is discharged from the overflow pipe 200.

Optionally, the detector 330 may be a pressure sensor, where the pressure sensor is disposed at the bottom of the receiving container 310, and when the additive is introduced into the receiving container 310, the pressure sensor senses the weight change of the receiving container 310, so as to determine that the overflow pipe 200 has the additive discharged. Of course, the pressure sensor may also be replaced by a load cell.

In other embodiments, as shown in fig. 2, a detector 330 is disposed on the return tube 320, optionally, the detector 330 is a flow meter, and the flow rate in the return tube 320 is detected by the flow meter, so as to determine whether the additive flows in the return tube 320, and further determine that the additive is discharged from the overflow tube 200.

Compared with the prior art, the anti-overflow device of the additive metering scale provided by the embodiment has the following advantages:

(1) The pipe diameters of the overflow pipe 200, the return pipe 320 and the feed pipe 700 are reasonably matched, so that the phenomenon that the feed amount is larger than the liquid outlet amount of the overflow pipe 200 and the return amount of the return pipe 320 is avoided.

(2) The material receiving container 310 is in non-contact fit with the overflow pipe 200 before, so that interference to the measurement of the weighing scale body 100 is avoided, and the measurement accuracy is ensured.

Referring to fig. 1, 2 and 3, the present embodiment also provides an additive adding system for a concrete mixing plant. The additive adding system comprises a storage box 500, a coarse and fine metering device 600, a feed pipe 700, a feed pump 800 and the additive metering balance overflow preventing device.

The storage box 500, the feed pump 800 and the coarse and fine metering device 600 are sequentially connected through the feed pipe 700, the coarse and fine metering device 600 is arranged above the metering scale body 100, and the coarse and fine metering device 600 is used for carrying out primary metering on the additive and then transferring the additive to the metering scale body 100 for secondary metering.

Referring to fig. 4, optionally, in the present embodiment, the outlet of the reflux assembly 300 of the overflow prevention device of the additive metering balance is connected to the storage tank 500, so that the additive discharged from the overflow pipe 200 can be returned to the storage tank 500 for reuse, thereby avoiding waste. Of course, the collecting device 400 may be externally arranged for collecting.

Example two

Referring to fig. 2 and 3, the present embodiment provides an overflow preventing device for an admixture weighing scale. The present embodiment is an improvement made on the technical basis of the first embodiment described above, and is different from the first embodiment described above in that:

in this embodiment, the overflow pipe 200 has a right angle shape, wherein the overflow pipe 200 includes a horizontal pipe section 210 and a vertical pipe section 220 connected in sequence, and specifically, the horizontal pipe section 210 and the vertical pipe section 220 are connected by an elbow 230.

The transverse tube section 210 is arranged on the weighing scale body 100 and is communicated with the accommodating space; the riser section 220 has a liquid outlet 201, with the liquid outlet 201 facing downward.

Referring to fig. 6, in some embodiments, overflow tube 200 includes a vertical tube section 220 and a plurality of horizontal tube sections 210. Wherein, a plurality of horizontal tube sections 210 are all disposed on the weighing scale body 100, and the plurality of horizontal tube sections 210 are distributed along the vertical direction, a preset distance is spaced between two adjacent horizontal tube sections 210, and each horizontal tube section 210 is respectively provided with a control valve 240. The vertical pipe sections 220 are respectively connected with the plurality of horizontal pipe sections 210, and the vertical pipe sections 220 are provided with the liquid outlets 201, and the liquid outlets 201 face downwards. Further, the liquid outlet 201 is lower than the liquid inlet of the lowest horizontal pipe section 210. Accordingly, it can be understood that the amount of the additive added during the stirring is different due to the different specifications of the concrete required by different engineering, so that the corresponding control valve 240 can be controlled to be opened according to the different amounts of the additive metered by the weighing scale body 100, thereby preventing the storage of excessive additive in the accommodating space of the weighing scale body 100 and preventing the excessive additive from flowing out of the overflow pipe 200.

Alternatively, the control valve 240 may be selected to be a manual valve or a solenoid valve.

Referring to fig. 3 and 5, in the present embodiment, the caliber of the receiving opening 301 is larger than that of the liquid outlet 201, and the vertical pipe 220 extends into the reflow assembly 300 through the receiving opening 301. And in particular into the receiving container 310, to further prevent leakage of the admixture discharged from the overflow tube 200.

The foregoing details of the optional implementation manner of the embodiment of the present application have been described in detail with reference to the accompanying drawings, but the embodiment of the present application is not limited to the specific details of the foregoing implementation manner, and various simple modifications may be made to the technical solution of the embodiment of the present application within the scope of the technical concept of the embodiment of the present application, and these simple modifications all belong to the protection scope of the embodiment of the present application.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in detail in this application.

Moreover, any combination of the various embodiments of the present application may be made, so long as it does not deviate from the idea of the embodiment of the present application, and it should also be regarded as the disclosure of the embodiment of the present application.

Claims (10)

1. An admixture weighing scale overflow prevention device, comprising:

a metering balance body (100) provided with a containing space for storing an additive therein;

the overflow pipe (200) is arranged on the weighing scale body (100) and is communicated with the accommodating space; and

the reflux assembly (300) is arranged on one side of the weighing scale body (100), a material receiving opening (301) of the reflux assembly (300) is positioned below a liquid outlet (201) of the overflow pipe (200) and is used for receiving the additive discharged by the overflow pipe (200), and a discharge opening of the reflux assembly (300) is used for being externally connected with a collecting device (400).

2. The admixture metering scale overflow prevention device according to claim 1, wherein the liquid inlet of the overflow pipe (200) is higher than a liquid level line when the accommodating space is maximally metered.

3. The admixture metering scale overflow prevention device according to claim 1, wherein the pipe diameter of the overflow pipe (200) is larger than or equal to the pipe diameter of the feed pipe (700) of the metering scale body (100).

4. The admixture metering scale overflow prevention device according to claim 1, wherein the overflow pipe (200) comprises a horizontal pipe section (210) and a vertical pipe section (220) connected in sequence;

the transverse pipe section (210) is arranged on the weighing scale body (100) and is communicated with the accommodating space;

the vertical pipe section (220) is provided with the liquid outlet (201), and the liquid outlet (201) faces downwards;

wherein the caliber of the material receiving opening (301) is larger than the caliber of the liquid outlet (201).

5. The admixture metering scale overflow prevention device according to claim 1, wherein the overflow pipe (200) comprises:

the metering balance comprises a metering balance body (100), a plurality of transverse pipe sections (210), a plurality of control valves (240) and a plurality of control valves, wherein the transverse pipe sections (210) are arranged on the metering balance body (100), the transverse pipe sections (210) are distributed along the vertical direction, the interval between two adjacent transverse pipe sections (210) is preset, and each transverse pipe section (210) is provided with a control valve (240); and

a vertical pipe section (220) respectively connected with the plurality of horizontal pipe sections (210), wherein the vertical pipe section (220) is provided with the liquid outlet (201), and the liquid outlet (201) faces downwards;

the caliber of the receiving opening (301) is larger than that of the liquid outlet (201), and the liquid outlet (201) is lower than the liquid inlet of the transverse pipe section (210) positioned at the lowest position.

6. The admixture metering scale overflow prevention device of claim 4 or 5, wherein the standpipe (220) extends into the return assembly (300) through the receiving port (301).

7. The admixture metering scale overflow prevention device of claim 1, wherein the reflow assembly (300) comprises:

the upper end of the receiving container (310) is provided with the receiving opening (301), and the caliber of the receiving opening (301) is larger than that of the liquid outlet (201); and

and one end of the return pipe (320) is connected with the material receiving container (310), and the other end of the return pipe is used for being externally connected with the collecting device (400).

8. The admixture metering scale overflow prevention device of claim 7, wherein the receiving container (310) is a funnel-shaped or a column-shaped container.

9. The admixture metering scale overflow prevention device of claim 7, wherein the return assembly (300) further comprises a detector (330), the detector (330) being provided to the receiving container (310) or the return tube (320), the detector (330) being configured to signal the overflow of admixture upon detection of the overflow of admixture.

10. An additive addition system, characterized by comprising a storage tank (500), a coarse and fine metering device (600), a feed pipe (700), a feed pump (800) and an additive metering scale overflow preventing device according to any of claims 1-9;

the storage box (500), the feed pump (800) and the coarse and fine metering device (600) are sequentially connected through the feed pipe (700), the coarse and fine metering device (600) is arranged above the metering scale body (100), and the coarse and fine metering device (600) is used for carrying out primary metering on the additive and then transferring to the metering scale body (100) for carrying out secondary metering;

the discharge port of the reflux component (300) in the additive metering balance overflow preventing device is connected with the stock box (500).

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