CN216572973U - Metering and conveying system for liquid raw materials - Google Patents
Metering and conveying system for liquid raw materials Download PDFInfo
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- CN216572973U CN216572973U CN202123131571.3U CN202123131571U CN216572973U CN 216572973 U CN216572973 U CN 216572973U CN 202123131571 U CN202123131571 U CN 202123131571U CN 216572973 U CN216572973 U CN 216572973U
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Abstract
The utility model discloses a metering and conveying system for liquid raw materials, which comprises: the storage tank, metering tank and reation kettle, the discharge gate of storage tank links to each other through the feed inlet of first pipeline with the metering tank, be provided with first valve on the discharge gate of storage tank, be provided with the second valve on the feed inlet of metering tank, be provided with first vacuum pump and back flow on first pipeline, the back flow links to each other with the feed inlet of storage tank, be provided with second vacuum pump and third valve on the back flow, the metering tank is located reation kettle's top, be provided with little big cone discharge gate down in the bottom of metering tank, the cone discharge gate links to each other with reation kettle's feed inlet downwards through the second pipeline, be provided with the fourth valve on the second pipeline. The utility model has the advantage that the liquid raw materials conveyed into the reaction kettle can be accurately metered, so that the precision of the liquid raw materials conveyed into the reaction kettle is improved.
Description
Technical Field
The present invention relates to a metering delivery system for liquid raw materials.
Background
In the process of producing the coating, the liquid raw materials are conveyed from a storage tank of the tank field to a reaction kettle of a workshop to be mixed and reacted with other raw materials. The original conveying system is characterized in that a material storage tank is directly connected with a reaction kettle through a pipeline, a metering pump is arranged on the pipeline, and the amount of liquid raw materials conveyed into the reaction kettle is controlled through the metering pump. However, such a simple delivery system has the following disadvantages: the distance between tank field and the workshop is overlength, and liquid raw materials can produce the loss from the in-process that the storage tank flowed to reation kettle in the pipeline, and the measuring pump can only record the volume of the liquid raw materials of following the storage tank extraction, and can't know the volume of the liquid raw materials that the loss was gone, so can't guarantee the volume of the liquid raw materials who enters into reation kettle and be exactly the required volume of production technology, will influence coating quality like this.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a metering and conveying system of liquid raw materials, which can improve conveying precision.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a metered delivery system for a liquid feedstock comprising: storage tank, metering tank and reation kettle, the discharge gate of storage tank links to each other through the feed inlet of first pipeline with the metering tank, be provided with first valve on the discharge gate of storage tank, be provided with the second valve on the feed inlet of metering tank, be provided with first vacuum pump and back flow on first pipeline, the back flow links to each other with the feed inlet of storage tank, be provided with second vacuum pump and third valve on the back flow, the metering tank is located reation kettle's top, be provided with little big end down's toper discharge gate in the bottom of metering tank, the toper discharge gate passes through the second pipeline and links to each other with reation kettle's feed inlet downwards, be provided with the fourth valve on the second pipeline.
Further, in the metering and conveying system of the liquid raw material, a first pipeline filter is arranged on the first pipeline.
Further, in the metering and conveying system for the liquid raw materials, the return pipe is connected with the first pipeline through the three-way pipe, and the second pipeline filter is arranged on the return pipe.
Further, in the metering and conveying system for the liquid raw materials, the first valve, the second valve, the third valve and the fourth valve are all electromagnetic valves, the first valve, the second valve, the third valve and the fourth valve are all electrically connected with the central control device, and the central control device is further electrically connected with the metering tank, the first vacuum pump and the second vacuum pump.
Further, in the metering and conveying system for the liquid raw materials, a flow sensor is arranged on the second pipeline, and the flow sensor is electrically connected with the central control device.
The utility model has the advantages that: the metering tank is arranged between the storage tank and the reaction kettle, so that the liquid raw material can be temporarily stored, and the liquid raw material can be accurately metered, so that the precision of the liquid raw material conveyed into the reaction kettle is improved; set up the metering tank and can utilize the difference in height to carry liquid raw materials above reation kettle, need not use the vacuum pump, reduced manufacturing cost.
Drawings
Fig. 1 is a schematic structural view of a metering delivery system for liquid raw materials according to the present invention.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the preferred embodiments.
As shown in fig. 1, the metering and conveying system of liquid raw material according to the present invention comprises: the device comprises a storage tank 1, a metering tank 2 and a reaction kettle 3, wherein a discharge hole of the storage tank 1 is connected with a feed inlet of the metering tank 2 through a first pipeline 11, a first valve 12 is arranged on the discharge hole of the storage tank 1, a second valve 21 is arranged on the feed inlet of the metering tank 2, a first vacuum pump 13, a first pipeline filter 14 and a return pipe 4 are arranged on the first pipeline 11, the return pipe 4 is connected with the first pipeline 11 through a three-way pipe 41, the return pipe 4 is connected with the feed inlet of the storage tank 1, a second vacuum pump 42, a second pipeline filter 43 and a third valve 44 are arranged on the return pipe 4, the metering tank 2 is positioned above the reaction kettle 3, a conical discharge hole 22 with a small lower part and a large part is arranged at the bottom of the metering tank 2, the conical discharge hole 22 can prevent liquid raw materials from being accumulated at the bottom of the metering tank 2, the conical discharge hole 22 is downwards connected with the feed inlet of the reaction kettle 3 through a second pipeline 23, the second pipe 23 is provided with a flow sensor 24 and a fourth valve 25.
In this embodiment, the first valve 12, the second valve 21, the third valve 44, and the fourth valve 25 are all electromagnetic valves, the first valve 12, the second valve 21, the third valve 44, and the fourth valve 25 are all electrically connected to a central control device, and the central control device is further electrically connected to the metering tank 2, the first vacuum pump 13, the second vacuum pump 42, and the flow sensor 24, so as to implement automatic control.
The working principle of the utility model is as follows: when liquid raw materials in the storage tank 1 need to be put into the reaction kettle 3, the first valve 12 and the second valve 21 are opened, then the first vacuum pump 13 is started, the liquid raw materials in the storage tank 1 are conveyed into the metering tank 2 by the first vacuum pump 13, after the amount of the liquid raw materials in the metering tank 2 meets the requirement, the metering tank 2 sends a signal to the central control device, the central control device receives the signal sent by the metering tank 2 and then sequentially closes the first vacuum pump 13, the second valve 21 and the first valve 12, meanwhile, the central control device opens the fourth valve 25, the liquid raw materials in the metering tank 2 flow into the reaction kettle 3 along the second pipeline 23 under the action of gravity, the flow sensor 24 on the second pipeline 23 monitors the flow of the liquid raw materials in the second pipeline 23 in real time, when the flow sensor 24 cannot monitor the flow sensor 24 of the liquid raw materials in the second pipeline 23 and generate a signal to the central control device, the central control unit closes the fourth valve 25 upon receiving a signal from the flow sensor 24. When the first valve 12, the second valve 21 and the first vacuum pump 13 are all closed, the central control device opens the third valve 44 and the second vacuum pump 42 in sequence, the second vacuum pump 42 will transfer the liquid material remaining in the first pipeline 11 back to the material storage tank 1, and then closes the third valve 44 and the second vacuum pump 42.
The utility model has the advantages that: the metering tank is arranged between the storage tank and the reaction kettle, so that the liquid raw material can be temporarily stored, and the liquid raw material can be accurately metered, so that the precision of the liquid raw material conveyed into the reaction kettle is improved; set up the metering tank and can utilize the difference in height to carry liquid raw materials above reation kettle, need not use the vacuum pump, reduced manufacturing cost.
Claims (5)
1. The metering and conveying system of the liquid raw materials is characterized in that: the method comprises the following steps: the storage tank, metering tank and reation kettle, the discharge gate of storage tank links to each other through the feed inlet of first pipeline with the metering tank, be provided with first valve on the discharge gate of storage tank, be provided with the second valve on the feed inlet of metering tank, be provided with first vacuum pump and back flow on first pipeline, the back flow links to each other with the feed inlet of storage tank, be provided with second vacuum pump and third valve on the back flow, the metering tank is located reation kettle's top, be provided with little big cone discharge gate down in the bottom of metering tank, the cone discharge gate links to each other with reation kettle's feed inlet downwards through the second pipeline, be provided with the fourth valve on the second pipeline.
2. The metered delivery system of liquid feedstock as recited in claim 1, wherein: a first pipeline filter is arranged on the first pipeline.
3. The metered delivery system of liquid feedstock as recited in claim 1, wherein: the return pipe is connected with the first pipeline through a three-way pipe, and a second pipeline filter is arranged on the return pipe.
4. A metering delivery system for a liquid feed stock according to claim 1, 2 or 3, characterised in that: the first valve, the second valve, the third valve and the fourth valve are all electromagnetic valves, the first valve, the second valve, the third valve and the fourth valve are all electrically connected with a central control device, and the central control device is further electrically connected with the metering tank, the first vacuum pump and the second vacuum pump.
5. The metered delivery system of liquid feedstock as recited in claim 4, wherein: and a flow sensor is arranged on the second pipeline and is electrically connected with the central control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123131571.3U CN216572973U (en) | 2021-12-14 | 2021-12-14 | Metering and conveying system for liquid raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123131571.3U CN216572973U (en) | 2021-12-14 | 2021-12-14 | Metering and conveying system for liquid raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216572973U true CN216572973U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123131571.3U Active CN216572973U (en) | 2021-12-14 | 2021-12-14 | Metering and conveying system for liquid raw materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216572973U (en) |
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2021
- 2021-12-14 CN CN202123131571.3U patent/CN216572973U/en active Active
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