阅读说明：本技术 水性树脂间歇式超声波乳化装置 (Intermittent ultrasonic emulsification device for water-based resin ) 是由 张善志 来水利 柳峰 陈华法 于 2019-11-21 设计创作，主要内容包括：本发明水性树脂间歇式超声波乳化装置,包括乳化釜、高速分散机、底座、支架和控制装置,反应釜下部设有出料口和冷却夹套,上端安装釜盖,釜盖上设有进料口和溢流口,高速分散机固定安装在釜盖上；其特征是：在釜盖上固定安装聚能超声波发生器,该聚能超声波发生器的探头伸入到反应釜内腔；反应釜侧壁安装发散超声波发生器。具有生产效率、产品品质好、设备投资和能源消耗少、产品生产成本低等优点。适用于水性聚氨酯树脂的乳化器。(The invention relates to an intermittent ultrasonic emulsification device for water-based resin, which comprises an emulsification kettle, a high-speed dispersion machine, a base, a bracket and a control device, wherein the lower part of the reaction kettle is provided with a discharge hole and a cooling jacket, the upper end of the reaction kettle is provided with a kettle cover, the kettle cover is provided with a feed inlet and an overflow port, and the high-speed dispersion machine is fixedly arranged on the kettle cover; the method is characterized in that: fixedly installing an energy-gathering ultrasonic generator on the kettle cover, wherein a probe of the energy-gathering ultrasonic generator extends into the inner cavity of the reaction kettle; the side wall of the reaction kettle is provided with a divergent ultrasonic generator. Has the advantages of high production efficiency, high product quality, low equipment investment, low energy consumption, low product production cost and the like. Is suitable for an emulsifier of the water-based polyurethane resin.)

The intermittent ultrasonic emulsification device for waterborne resins comprises an emulsification kettle (7), a high-speed dispersion machine (5), a base (12), a support (11) and a control device (2), wherein the reaction kettle (7) is made of stainless steel materials and is fixedly installed on the base (12) through the support (11), a discharge hole (14) and a cooling jacket (15) are formed in the lower portion of the reaction kettle (7), a kettle cover (3) is installed at the upper end of the reaction kettle (7), a feed inlet and an overflow port (6) are formed in the kettle cover (3), the high-speed dispersion machine (5) is fixedly installed on the kettle cover (3), a dispersion disc (9) of the high-speed dispersion machine extends into the lower portion of an inner cavity of the reaction kettle (7), a cooling water inlet (13) is formed in the lower portion of the cooling jacket (15), and a cooling water outlet (10) is formed in the upper portion of the kettle cover (3), and is characterized in that an energy-gathering ultrasonic generator (4) is fixedly installed on the side wall of the reaction kettle (3.

2. The batch-type ultrasonic emulsification apparatus for aqueous resin according to claim 1, characterized in that: the upper axial direction 3/4 of the reaction kettle (7) is cylindrical, the lower axial direction 1/4 is conical, the cooling jacket (15) is arranged on the outer wall of the conical part, and the divergent ultrasonic generator (8) is arranged on the side wall of the cylindrical part.

3. The batch-type ultrasonic emulsification device for the water-based resin according to claim 1 or 2, wherein the number of the energy-gathering ultrasonic generators (4) is at least two, the number of the divergent ultrasonic generators (8) is groups, the number of the two divergent ultrasonic generators (8) is at least two, the two divergent ultrasonic generators (8) in the same group are symmetrically arranged at two ends of the reaction kettle (7) in the diameter direction, each group is arranged up and down, the single group of ultrasonic power is 1000w, and the ultrasonic frequency is 40 KHz.

4. The batch-type ultrasonic emulsification apparatus for aqueous resin according to claim 3, characterized in that: the energy-gathering ultrasonic generators (4) are uniformly arranged in the circumferential direction at radial 1/4 positions on two sides of the center of the inner cavity of the reaction kettle (7), and the extending depth of the probe is 3/5 in the axial direction of the inner cavity of the reaction kettle (7); the single ultrasonic power is 3000-6000w and the ultrasonic frequency is 20 KHz.

5. The batch-type ultrasonic emulsification apparatus for aqueous resins according to claim 1, 2 or 4 wherein: the high-speed dispersion machine (5) is positioned on the central axis of the inner cavity of the reaction kettle (7), the dispersion disc (9) thereof extends into the middle part of the conical inner cavity at the lower part of the reaction kettle (7), the frequency of the high-speed dispersion machine (5) is adjustable, and the rotating speed is 0-1500 rpm.

6. The batch-type ultrasonic emulsification apparatus for aqueous resin according to claim 3, characterized in that: the high-speed dispersion machine (5) is positioned on the central axis of the inner cavity of the reaction kettle (7), the dispersion disc (9) thereof extends into the middle part of the conical inner cavity at the lower part of the reaction kettle (7), the frequency of the high-speed dispersion machine (5) is adjustable, and the rotating speed is 0-1500 rpm.

Technical Field

The invention relates to an aqueous resin ultrasonic emulsification device, which is suitable for an emulsifier of aqueous polyurethane resin.

Background

The method comprises the following steps that is a mode that for a large-scale reaction kettle, a prepolymer with high viscosity needs to be subjected to extremely high dispersing power, even instantaneous high current can cause machine tripping or circuit burning, high-power supply equipment is needed, the investment is large, the energy consumption is high, the production cost is high, and secondly, a dispersion disc used by the high-speed dispersion machine cannot effectively shear all resin prepolymers in the reaction kettle, local resin can form thick adhesion on the kettle wall, the local resin dispersion is likely to form a thick emulsion layer, the high-speed dispersion process is likely to cause poor local dispersion performance, the emulsion production process is likely to cause poor local emulsion particle size distribution, and the emulsion production process is likely to fail.

Disclosure of Invention

Aiming at the defects in the prior art, the invention designs intermittent ultrasonic emulsification devices to replace emulsification equipment of mechanical shearing, applies the advantages of ultrasonic technology to the resin industry, and obtains the aqueous resin intermittent ultrasonic emulsification device which has smaller emulsion particle size, better particle size distribution, better emulsion appearance quality, good stability and performance after film forming and high production efficiency compared with the traditional emulsification equipment, and can reduce equipment investment, energy consumption and product production cost.

The technical scheme includes that the device comprises an emulsifying kettle, a high-speed dispersion machine, a base, a support and a control device, wherein the reaction kettle is made of stainless steel materials and is fixedly installed on the base through the support, a discharge port and a cooling jacket are arranged at the lower part of the reaction kettle, a kettle cover is installed at the upper end of the reaction kettle, a feed port and an overflow port are arranged on the kettle cover, the high-speed dispersion machine is fixedly installed on the kettle cover, a dispersion disc of the high-speed dispersion machine extends into the lower part of an inner cavity of the reaction kettle, a cooling water inlet is arranged; the method is characterized in that: fixedly installing an energy-gathering ultrasonic generator on the kettle cover, wherein a probe of the energy-gathering ultrasonic generator extends into the inner cavity of the reaction kettle; the side wall of the reaction kettle is provided with a divergent ultrasonic generator.

In the technical scheme, the upper axial direction 3/4 of the reaction kettle is cylindrical, the lower axial direction 1/4 of the reaction kettle is conical, the cooling jacket is arranged on the outer wall of the conical part, and the divergent ultrasonic generator is arranged on the side wall of the cylindrical part.

In the technical scheme, at least two energy-gathering ultrasonic generators are provided, two diverging ultrasonic generators form groups, at least two groups are provided, the two diverging ultrasonic generators in the same group are symmetrically arranged at two ends of the reaction kettle in the diameter direction, each group is arranged up and down, the single group of ultrasonic power is 1000w, and the ultrasonic frequency is 40 KHz.

In the technical scheme, the energy-gathered ultrasonic generators are uniformly arranged in the circumferential direction at radial 1/4 positions on two sides of the center of the inner cavity of the reaction kettle, and the extension depth of the probe is 3/5 positions in the axial direction of the inner cavity of the reaction kettle; the single ultrasonic power is 3000-6000w and the ultrasonic frequency is 20 KHz.

In the above technical scheme, the high-speed dispersion machine is positioned on the central axis of the inner cavity of the reaction kettle, the dispersion disc of the high-speed dispersion machine extends into the middle of the conical inner cavity at the lower part of the reaction kettle, the frequency of the high-speed dispersion machine can be adjusted, and the rotating speed is 0-1500 rpm.

Compared with the prior art, the invention has the beneficial effects that:

ultrasonic wave is adopted to provide energy to replace mechanical shearing of a high-speed dispersion machine or a homogenizer, and the violent action among particles is formed between two liquid phases through the mechanical effect and the cavitation effect of the ultrasonic wave, so that the emulsification process of the liquid resin in water is completed in a short time; the invention is designed into a dual-purpose mode of high-speed dispersion and ultrasonic wave to solve the mixing problem of high-viscosity resin at the initial stage of emulsification, and simultaneously, two modes of energy collection and dispersion can be used simultaneously with high-speed dispersion or independently, so that the invention can be effectively applied to the requirements of different resins; the device is designed into an intermittent emulsifying device, and can be used for a semi-continuous emulsifying device through an overflow port and a feed port; the ultrasonic emulsification is used for forming the aqueous resin dispersoid or emulsion with smaller and better emulsion particle size, which can improve the production efficiency, improve the product quality, reduce the equipment investment, the energy consumption and the product production cost.

Drawings

FIG. 1 is a schematic structural view of the present invention

In the figure, 1, a touch screen control screen, 2, a control device, 3, a kettle cover, 4, an energy-gathering ultrasonic generator, 5, a high-speed disperser, 6, an overflow port, 7, an emulsifying kettle, 8, a dispersing ultrasonic generator, 9, a dispersing disc, 10, a cooling water outlet, 11, a support frame, 12, a base, 13, a cooling water inlet, 14, a discharge port, 15 and a cooling jacket.

Detailed Description

The intermittent ultrasonic emulsifying device for water-based resin as shown in figure 1 comprises an emulsifying kettle 7, a high-speed dispersion machine 5, a base 12, a bracket 11 and a control device 2, wherein the emulsifying kettle 7 is made of stainless steel materials and fixedly arranged on the base 12 through the bracket 11, the lower part of the reacting kettle 7 is provided with a discharge port 14 and a cooling jacket 15, the upper end of the reacting kettle 7 is provided with a kettle cover 3, the kettle cover 3 is provided with a feed port, an overflow port 6, an observation port and a temperature detection port, the high-speed dispersion machine 5 is fixedly arranged on the kettle cover 3, a dispersion disc 9 of the high-speed dispersion machine extends into the lower part of an inner cavity of the reacting kettle 7, the lower part of the cooling jacket 15 is provided with a cooling water inlet 13, the upper part of the cooling water outlet 10, the control device 2 is fixedly arranged on the base 12, and the upper part of the high-speed dispersion machine is provided with a touch screen 1 with landing protection, overload protection and thermal protection, and is characterized in that an energy-gathering ultrasonic generator 4 is fixedly arranged on the kettle cover 3, a probe of the ultrasonic generator 4 extends into the inner cavity of the reacting kettle 7, a divergent ultrasonic generator 8 is arranged on the side wall of the reacting kettle 3, two or more than two kinds of liquid are uniformly mixed liquid to form a liquid dispersion liquid which are uniformly mixed liquid which is mixed to form a high-speed dispersion liquid which is mixed to generate high-generating high-speed dispersion liquid which is uniformly dispersed by high-generating high-speed dispersion, high-speed ultrasonic-speed dispersion, high-speed dispersion-speed ultrasonic-.

The upper axial direction 3/4 of the reaction kettle 7 is cylindrical, the lower axial direction 1/4 is conical, the cooling jacket 15 is arranged on the outer wall of the conical part, and the divergent ultrasonic generator 8 is arranged on the side wall of the cylindrical part.

The energy-gathering ultrasonic generators 4 are at least two, the two divergent ultrasonic generators 8 form groups, at least two groups are provided, the two divergent ultrasonic generators 8 in the same group are symmetrically arranged at two ends of the reaction kettle 7 in the diameter direction, each group is arranged up and down, the single group of ultrasonic power is 1000w, and the ultrasonic frequency is 40 KHz.

The energy-gathering ultrasonic generators 4 are uniformly arranged in the circumferential direction at radial 1/4 positions on two sides of the center of the inner cavity of the reaction kettle 7, and the extending depth of the probe is the axial 3/5 position of the inner cavity of the reaction kettle 7 and is higher than the position of the cooling water outlet 10; the single ultrasonic power is 3000-6000w and the ultrasonic frequency is 20 KHz.

The high-speed dispersion machine 5 is positioned on the central axis of the inner cavity of the reaction kettle 7, the dispersion disc 9 of the high-speed dispersion machine extends into the middle of the conical inner cavity at the lower part of the reaction kettle 7, the height of the dispersion disc is slightly lower than that of the cooling water outlet 10, the frequency of the high-speed dispersion machine 5 is adjustable, and the rotating speed is 0-1500 rpm.

The working process of the invention is as follows:

firstly, opening cooling water to fully fill the cooling jacket 15 and keep normal cooling; adding a small amount of deionized water into an emulsifying kettle 7, opening a high-speed dispersion machine 5 and keeping the medium-speed operation; simultaneously adding resin liquid and deionized water from a feed inlet in proportion, and simultaneously starting the energy-gathering ultrasonic generator 4 and the divergent ultrasonic generator 8; the emulsification process lasts about 30 to 180 seconds to achieve the emulsification effect.

The invention is designed as an intermittent emulsifying kettle, and can also continuously add resin liquid and deionized water through a feed inlet at the top of the emulsifying kettle 7, and the emulsified emulsion overflows to an emulsion storage tank through an upper overflow port 6 to form a semi-continuous emulsifying device.

The invention can also be applied to the emulsification process of natural resin in the presence of water and emulsifier, and the emulsification kettle can replace the emulsification of an intermittent large-scale high-speed dispersion machine in a reaction kettle, is convenient to clean, can move at any time, can complete the emulsification of water-based resin in industrial production within working days, and is an application of novel cleaning technologies in the resin water-based chemical industry.