Foaming agent feeding metering reaction device

Abstract

The utility model discloses a foaming agent feeding metering reaction device which comprises a reaction kettle, a stirring mechanism, a feeding pump, a thermometer, an emptying pipeline, a chilled water pipeline, a circulating pump, a weighbridge, a foaming agent steel cylinder, a foaming agent feeding regulating valve, an air source pipeline and a computer control end, the other end of the circulating pump and the discharging end of the foaming agent feeding regulating valve are communicated with the top of the reaction kettle, and the feeding end of the foaming agent feeding regulating valve is communicated with the foaming agent steel cylinder. According to the embodiment, the material temperature and feeding metering in the reaction kettle are well controlled in the feeding process, and a foaming agent is fully dissolved in the material, so that the material is uniformly mixed, the problems that the foaming agent volatilizes in the feeding process and the foaming agent remains in a pipeline are solved, the product quality is also improved, meanwhile, the dangerous factor that the foaming agent volatilizes cannot be generated, and the product quality is improved. And a good technical effect is achieved, and a good technical effect is achieved in the production process of the automobile system material.

Description

Technical Field

[0001] The utility model relates to a foaming agent feed metering reaction device. Background Art

[0002] In the production process of automotive system materials, the main raw materials are polyether polyols, catalysts, silicone oils and foaming agents. In the prior art, in the foaming agent feeding process, the foaming agent is metered into the kettle through a pipeline and added to the material. It is difficult to meet the requirements of small raw material usage and high precision. The production process with precision requirements cannot be met. The foaming agent is prone to volatilization during the feeding process and there is a problem of foaming agent residue in the pipeline, which affects the quality and performance of the product. At the same time, the control of the production process is also a dangerous factor.

[0003] Therefore, a foaming agent feed metering reaction device is in urgent need of being proposed. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides a foaming agent feed metering reaction device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a foaming agent feed metering reaction device, comprising a reactor, a stirring mechanism, a feed pump, a thermometer, a venting pipeline, a chilled water pipeline, a circulation pump, a floor scale, a foaming agent cylinder, a foaming agent feed regulating valve, a gas source pipeline and a computer control end, wherein the stirring mechanism and the thermometer are arranged in the reactor, the chilled water pipeline is arranged on the outer surface of the reactor, the feed pump and the venting pipeline are connected to the top of the reactor, one end of the circulation pump is connected to the bottom of the reactor, the other end of the circulation pump and the discharge end of the foaming agent feed regulating valve are both connected to the top of the reactor, the feed end of the foaming agent feed regulating valve is connected to the foaming agent cylinder, the foaming agent cylinder is arranged on the floor scale, the foaming agent cylinder is also provided with a gas source pipeline, and the floor scale is also electrically connected to the computer control end.

[0007] Preferably, a temperature-foaming agent feed interlock unit is provided between the thermometer, the foaming agent feed valve, the gas source pipeline and the computer control terminal. When the thermometer measurement value reaches the set value, the temperature-foaming agent feed interlock unit will open the foaming agent feed valve and the gas source pipeline.

[0008] Preferably, the temperature setting value is 5-19°C.

[0009] Preferably, the diameter of the foaming agent feed regulating valve ranges from DN5 to DN25.

[0010] Preferably, the feed flow rate range of the foaming agent feed regulating valve is 1 to 10 kg / min.

[0011] Preferably, the stirring mechanism comprises a motor and a stirring shaft, the motor is arranged on the top of the reactor, the output end of the motor is transmission-connected to the stirring shaft, and the stirring shaft is rotatably arranged in the reactor.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] This embodiment can better control the material temperature and feed metering in the reactor during the feeding process, fully dissolve the foaming agent in the material, and make the material mixed evenly, thereby solving the problem of foaming agent volatilization during the feeding process and foaming agent residue in the pipeline, and improving the quality of the product. At the same time, no dangerous factor of foaming agent volatilization is generated, and good technical effects are achieved, which is achieved in the production process of automobile system materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a foaming agent feed metering reaction device. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0016] In the description of the present invention, it should be understood that the terms "left" and "right" indicate directions or positional relationships based on the drawings in the specification. Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1As shown, this embodiment provides a foaming agent feed metering reaction device, including a reactor 1, a stirring mechanism 2, a feed pump 3, a thermometer 4, a venting pipeline 5, a chilled water pipeline 6, a circulating pump 7, a weighbridge 8, a foaming agent cylinder 9, a foaming agent feed regulating valve 10, a gas source pipeline 11 and a computer control terminal 12, wherein the stirring mechanism 2 and the thermometer 4 are arranged in the reactor 1, the chilled water pipeline 6 is arranged on the outer surface of the reactor 1, the feed pump 3 and the venting pipeline 5 are connected to the top of the reactor 1, one end of the circulating pump 7 is connected to the bottom of the reactor 1, the other end of the circulating pump 7 and the discharge end of the foaming agent feed regulating valve 10 are both connected to the top of the reactor 1, the feed end of the foaming agent feed regulating valve 10 is connected to the foaming agent cylinder 9, the foaming agent cylinder 9 is arranged on the weighbridge 8, the foaming agent cylinder 9 is also provided with a gas source pipeline 11, and the weighbridge 8 is also electrically connected to the computer control terminal 12.

[0019] Specifically, a temperature-foaming agent feed interlock unit 13 is further provided between the thermometer 4, the foaming agent feed valve 10, the gas source pipeline 11 and the computer control terminal 12. When the measurement value of the thermometer 4 reaches the set value, the temperature-foaming agent feed interlock unit 13 will open the foaming agent feed valve 10 and the gas source pipeline 11. The computer control terminal is electrically connected to the stirring mechanism, the feed pump, the venting pipeline, the chilled water pipeline, the circulation pump, the foaming agent feed regulating valve, and the gas source pipeline to control the opening and closing of each mechanism.

[0020] Specifically, the temperature setting value is 5-19°C, and 16°C is preferred in this embodiment.

[0021] Specifically, the diameter of the foaming agent feed regulating valve 10 ranges from DN5 to DN25, and DN20 is preferred in this embodiment.

[0022] Specifically, the feed flow rate range of the foaming agent feed regulating valve 10 is 1-10 kg / min, and preferably 8 kg / min in this embodiment.

[0023] Specifically, the stirring mechanism 2 includes a motor and a stirring shaft. The motor is arranged on the top of the reactor 1. The output end of the motor is transmission-connected to the stirring shaft. The stirring shaft is rotatably arranged in the reactor 1.

[0024] The working principle of this embodiment is further described below:

[0025] First, the polyether polyol, catalyst and silicone oil are fed into the reactor through the feed pump, the stirring mechanism is turned on, the feeding is completed, the venting pipeline is closed, the chilled water pipeline and the circulation pump are turned on, and the temperature parameters of the feed are set through the computer control end. When the temperature reaches the set value, the temperature-foaming agent feed interlock unit will open the foaming agent feed valve and the gas source pipeline, and the measurement is recorded online in real time through the floor scale. During the feeding process, the foaming agent enters the circulation pipeline and fully dissolves in the material before entering the reactor. After the feeding is completed, the foaming agent feed regulating valve and the gas source pipeline are closed. The floor scale uses a weighing sensor to be electrically connected to the computer control end through a data line. The volume of the foaming agent cylinder is 1000L, the diameter of the foaming agent feed regulating valve is DN10, the feed temperature is controlled to 17℃, the opening of the foaming agent feed regulating valve is controlled to 20%, and the drip flow rate is 5kg / min. The feed measurement is recorded online through the temperature-foaming agent feed interlock unit and the computer control end, so that the foaming agent feed amount is controlled within an error of ±0.01kg. This embodiment can better control the material temperature and feed metering in the reactor during the feeding process, fully dissolve the foaming agent in the material, and make the material mixed evenly, thereby solving the problem of foaming agent volatilization during the feeding process and foaming agent residue in the pipeline, and improving the quality of the product. At the same time, no dangerous factor of foaming agent volatilization is generated, and good technical effects are achieved, which is achieved in the production process of automobile system materials.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A foaming agent feed metering reaction device, characterized in that: The invention comprises a reactor (1), a stirring mechanism (2), a feed pump (3), a thermometer (4), a venting pipeline (5), a chilled water pipeline (6), a circulation pump (7), a weighbridge (8), a foaming agent cylinder (9), a foaming agent feed regulating valve (10), a gas source pipeline (11) and a computer control terminal (12), wherein the stirring mechanism (2) and the thermometer (4) are arranged in the reactor (1), the chilled water pipeline (6) is arranged on the outer surface of the reactor (1), and the feed pump (3) and the venting pipeline (5) are connected to the reactor. (1), one end of the circulating pump (7) is connected to the bottom of the reactor (1), the other end of the circulating pump (7) and the discharge end of the foaming agent feed regulating valve (10) are both connected to the top of the reactor (1), the feed end of the foaming agent feed regulating valve (10) is connected to the foaming agent cylinder (9), the foaming agent cylinder (9) is arranged on the floor scale (8), the foaming agent cylinder (9) is also provided with a gas source pipeline (11), and the floor scale (8) is also electrically connected to the computer control end (12).

2. A foaming agent feed metering reaction device according to claim 1, characterized in that: A temperature-foaming agent feed interlock unit (13) is also provided between the thermometer (4), the foaming agent feed regulating valve (10), the gas source pipeline (11) and the computer control terminal (12). When the measured value of the thermometer (4) reaches a set value, the temperature-foaming agent feed interlock unit (13) will open the foaming agent feed regulating valve (10) and the gas source pipeline (11).

3. A foaming agent feed metering reaction device according to claim 2, characterized in that: The temperature setting value is 5-19°C.

4. A foaming agent feed metering reaction device according to claim 1, characterized in that: The diameter of the foaming agent feed regulating valve (10) ranges from DN5 to DN25.

5. A foaming agent feed metering reaction device according to claim 1, characterized in that: The feed flow rate range of the foaming agent feed regulating valve (10) is 1 to 10 kg / min.

6. A foaming agent feed metering reaction device according to claim 1, characterized in that: The stirring mechanism (2) comprises a motor and a stirring shaft, the motor is arranged on the top of the reaction kettle (1), the output end of the motor is drivingly connected to the stirring shaft, and the stirring shaft is rotatably arranged in the reaction kettle (1).

Images