CN207605707U - Liquid raw material enters kettle metering device - Google Patents

Abstract

The liquid raw material enters the kettle metering device, which consists of a material tank, a liquid suction pump and a metering tank. The liquid inlet pipe 2 on the material tank is connected with the liquid outlet pipe 1 on the liquid suction pump, and the liquid suction pump is also provided with There is a liquid inlet pipe 1, which is characterized in that: the liquid outlet pipe 1 of the pump is equipped with a valve 1, and the bottom of the material tank is provided with a liquid outlet pipe 2, and the liquid outlet pipe 2 passes through the electromagnetic limit valve It is connected with the liquid inlet pipe three arranged on the top of the metering tank, the bottom of the metering tank is provided with the liquid outlet pipe three, the liquid outlet pipe three is connected with the liquid inlet pipe four of the reaction kettle, and the top of the reaction kettle is provided with An air outlet pipe, the air outlet pipe is connected with a vacuum pump, and the bottom of the material tank is higher than the top of the metering tank. The utility model not only reduces the production cost, but also occupies less storage space, which is beneficial for the company to expand reproduction.

Description

Liquid raw material enters kettle metering device

technical field

The utility model relates to a liquid metering device, in particular to a metering device for liquid raw materials entering a kettle.

Background technique

In the production of silicone sealants, DMC needs to be put into the reactor to prepare synthetic base rubber. At present, DMC is mostly packed in barrels. When DMC is pumped into the reaction kettle, the barrel is usually used as the unit of measurement. The cost is relatively high, which virtually increases the production cost; and when DMC in barrels is used, a large area of the factory area needs to be occupied for storage, which is not conducive to the comprehensive utilization of the factory area.

Contents of the invention

The utility model provides a simple in structure, convenient and practical metering device for liquid raw materials entering a kettle.

In order to solve the above problems, the technical solution of the utility model is: the liquid raw material enters the kettle metering device, which consists of a material tank, a material pump and a metering tank, the liquid inlet pipe 2 on the material tank and the liquid outlet pipe on the material pump One connection, the material pump is also provided with a liquid inlet pipe 1, which is characterized in that: the bottom of the material tank is provided with a liquid outlet pipe 2, and the liquid outlet pipe 2 is arranged on the top of the metering tank through an electromagnetic limit valve. The three liquid inlet pipes are connected, the bottom of the metering tank is provided with a liquid outlet pipe three, and the liquid outlet pipe three is connected with the liquid inlet pipe four of the reaction kettle, and the top of the reaction kettle is provided with an air outlet pipe, and the outlet pipe three is connected with the liquid inlet pipe four of the reaction kettle. The air pipe is connected to the vacuum pump, and the bottom of the material tank is higher than the top of the metering tank.

In order to prevent waste caused by backflow of liquid in the liquid outlet pipe 1 when the material pump is overhauled, the liquid inlet pipe 1 and the liquid outlet pipe 1 of the material pump are respectively provided with a valve 1 and a valve 2.

In order to facilitate operations such as maintenance of the reaction kettle, a valve three is installed on the liquid inlet pipe four of the reaction kettle.

In order to observe the remaining amount of liquid in the metering tank more conveniently and quickly, a transparent glass metering column is arranged on the metering tank.

The beneficial effects of the utility model are:

1. The utility model can use DMC in storage tanks and various barrels, and can directly pump DMC into the material tank, which not only reduces the production cost, but also occupies less storage space, which is beneficial to the company's expansion of reproduction.

2. The utility model adopts the electromagnetic limit valve to control the quantity of liquid flowing into the metering tank, which is simple and practical, convenient for maintenance, and reduces the production cost.

3. The utility model can conveniently control the quantity of DMC needed for one production, which is convenient for the company to carry out refined production control.

Description of drawings

Fig. 1 is a structural representation of the utility model.

In the figure: material pump 1, liquid inlet pipe 1, valve 2 3, valve 1 4, liquid outlet pipe 1 5, liquid inlet pipe 2 6, material tank 7, liquid outlet pipe 2 8, electromagnetic limit valve 9, inlet Liquid pipe three 10, metering tank 11, liquid outlet pipe three 12, metering column 13, valve three 14, liquid inlet pipe four 15, gas outlet pipe 16, vacuum pump 17, and reaction kettle 18.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

In Fig. 1, the liquid raw material enters the kettle metering device, which consists of a material tank 7, a material pump 1 and a metering tank 11, the liquid inlet pipe two 6 on the material tank 7 and the liquid outlet pipe one 5 on the material pump 1 Unicom, the material pump 1 is also provided with a liquid inlet pipe 1, which is characterized in that: the bottom of the material tank 7 is provided with a liquid outlet pipe 2 8, and the liquid outlet pipe 2 8 is connected with the electromagnetic limit valve 9. The liquid inlet pipe 3 10 arranged on the top of the metering tank 11 is connected to each other, and the bottom of the metering tank 11 is provided with a liquid outlet pipe 3 12, and the liquid outlet pipe 3 12 is connected to the liquid inlet pipe 4 15 of the reaction kettle 18. The top of the reactor 18 is provided with an air outlet pipe 16, which is connected to a vacuum pump 17, and the bottom of the material tank 7 is higher than the top of the metering tank 11.

The first liquid inlet pipe 2 and the first liquid outlet pipe 5 of the material pump 1 are respectively provided with a valve one 4 and a valve two 3 .

A valve three 14 is installed on the inlet pipe four 15 of the reaction kettle 18.

The metering tank 11 is provided with a transparent metering column 13 .

When working, first open all valves, set the amount of liquid that needs to enter the metering tank 11 through the electromagnetic limit valve 9, and then start the material pump 1 to pump the required DMC into the material tank 7, because the bottom of the material tank 7 It is higher than the top of the metering tank 11, so the DMC in the material tank 7 will directly enter the metering tank 11 due to the height difference, and when the DMC entering reaches the required amount for production, the electromagnetic limit valve 9 will close the metering tank The liquid inlet pipe 3 10 of 11 prevents unnecessary DMC from entering. At this time, start the vacuum pump 17, and the vacuum pump 17 will suck the DMC in the metering tank 11 into the reactor while extracting the air in the reactor 18, thereby starting Make base glue. In order to facilitate the maintenance of the material pump 1 and prevent waste caused by the backflow of liquid in the liquid outlet pipe 15 during maintenance, a valve 2 3 is set on the liquid outlet pipe 15 of the material pump 1; when it is not working, the smoke pump 1 is turned off and valve one 4; in order to prevent the vacuum pump 17 from being started by mistake when the reaction kettle 18 is overhauled so as to cause DMC to enter the reaction kettle 18, a valve three 14 is installed on the liquid inlet pipe four 15.

Claims (4)

1. liquid raw material enters kettle metering device, composition includes material pot（7）, drawing liquid pump（1）And measuring tank（11）, described Material pot（7）On inlet tube two（6）With drawing liquid pump（1）On outlet tube one（5）Unicom, the drawing liquid pump（1）On also set up There is inlet tube one（2）, it is characterised in that：The material pot（7）Bottom be provided with outlet tube two（8）, the outlet tube two（8） Pass through electromagnetism limit valve（9）With setting in measuring tank（11）The inlet tube three at top（10）It is connected, the measuring tank（11）Bottom Portion is provided with outlet tube three（12）, the outlet tube three（12）With reaction kettle（18）Inlet tube four（15）It is connected, the reaction Kettle（18）Top be provided with escape pipe（16）, the escape pipe（16）With vacuum pump（17）It is connected, the material pot（7）Bottom Portion is higher than measuring tank（11）Top.

2. liquid raw material according to claim 1 enters kettle metering device, it is characterised in that：The drawing liquid pump（1）'s Inlet tube one（2）With outlet tube one（5）On be respectively arranged with valve one（4）With valve two（3）.

3. liquid raw material according to claim 1 enters kettle metering device, it is characterised in that：The reaction kettle（18）'s Inlet tube four（15）On valve three is installed（14）.

4. liquid raw material according to claim 1 enters kettle metering device, it is characterised in that：The measuring tank（11）On It is provided with transparent metering column（13）.