Efficient stirring and mixing device

Abstract

The invention discloses an efficient stirring and mixing device, and particularly relates to the technical field of resin processing.The efficient stirring and mixing device comprises a mixing kettle, a kettle cover is rotatably connected to the upper end of the mixing kettle, a vacuum pump is fixedly connected to the rear portion of the upper end of the kettle cover, and a feeding opening is formed in the front side of the upper portion of the outer surface of the mixing kettle; a circulating water heating device is mounted at the rear part of the outer surface of the mixing kettle, a water inlet is fixedly connected to the upper side of the right part of the outer surface of the mixing kettle, a stirring mechanism is fixedly connected to the middle of the lower end of the mixing kettle, and a discharging mechanism is fixedly connected to the middle side of the front part of the lower end of the mixing kettle. Through the designed circulating water heating device, the styrene-acrylic resin can be heated, the viscosity of the styrene-acrylic resin can be reduced, the fluidity of the styrene-acrylic resin can be improved, the reaction rate between the styrene-acrylic resin and an additive can be increased when the styrene-acrylic resin is stirred, the performance such as hardness and toughness of the styrene-acrylic resin can be improved, and the purity and quality of the styrene-acrylic resin can be further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of resin processing, and particularly relates to an efficient stirring and mixing device. Background Art

[0002] Styrene-acrylic resin, abbreviated as PP, is a thermoplastic resin copolymerized from styrene, acrylic acid and its esters. It belongs to a class of water-soluble acrylic resins and is also a typical alkali-soluble resin.

[0003] The mixing and stirring of styrene-acrylic resin is one of the key steps in the preparation of products such as styrene-acrylic emulsion and styrene-acrylic paint. The main purpose of mixing and stirring is to fully mix the styrene-acrylic resin with other raw materials evenly to ensure the stable performance and consistent quality of the final product.

[0004] In the traditional mixing and stirring process of styrene-acrylic resin, usually only the uniformity of stirring is concerned, and simple stirring equipment is used to mix the materials by mechanical stirring. However, there are many drawbacks in this conventional operation. On the one hand, at a lower temperature, the viscosity of styrene-acrylic resin is large and its fluidity is poor, which makes it difficult for the materials to be fully mixed during the stirring process, not only increasing the stirring time, reducing the production efficiency, but also possibly resulting in uneven mixing and affecting the product quality. On the other hand, in some production processes with strict requirements for the reaction temperature, the conventional stirring equipment cannot effectively control the temperature of the reaction system and is difficult to meet the production requirements. Therefore, an efficient stirring and mixing device is needed. Summary of the Invention

[0005] The main purpose of the present invention is to provide an efficient stirring and mixing device, which can effectively solve the problems raised above.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] An efficient stirring and mixing device includes a mixing kettle. The upper end of the mixing kettle is rotatably connected with a kettle cover. The rear part of the upper end of the kettle cover is fixedly connected with a vacuum pump. The front side of the upper part of the outer surface of the mixing kettle is provided with a feeding port. The rear part of the outer surface of the mixing kettle is provided with a circulating water heating device. The upper right part of the outer surface of the mixing kettle is fixedly connected with a water inlet valve. The middle part of the lower end of the mixing kettle is fixedly connected with a stirring mechanism. The middle part of the front part of the lower end of the mixing kettle is fixedly connected with a discharging mechanism.

[0008] Preferably, the mixing kettle is divided into an inner layer and an outer layer. The water inlet valve is communicated with the outer layer, and the feeding port is communicated with the inner layer.

[0009] Preferably, the stirring mechanism includes a stepper motor. The stepper motor is fixedly connected to the middle part of the lower end of the mixing kettle. The output end of the stepper motor is fixedly connected with a transmission rod. A plurality of stirring rods are fixedly connected to the upper, middle and lower parts of the outer surface of the transmission rod in a circular array respectively.

[0010] Preferably, the circulating water heating device includes a water pump, the water pump is fixedly connected to the upper side of the rear part of the outer surface of the mixing kettle, the input end of the water pump is fixedly connected to a heating box, the input end of the heating box is fixedly connected to a first connecting pipe, and the water inlet of the first connecting pipe is fixedly connected to a three-way pipe. The left and right water inlets of the three-way pipe are both fixedly connected to a second connecting pipe.

[0011] Preferably, the output end of the water pump communicates with the outer layer of the mixing kettle, the heating box is fixedly connected to the middle side of the rear part of the outer surface of the mixing kettle, and the two three-way pipes are respectively fixedly connected to the left and right parts of the outer circle of the lower end of the mixing kettle.

[0012] Preferably, the discharging mechanism includes a discharging cylinder, the discharging cylinder is fixedly connected to the middle side of the front part of the lower end of the mixing kettle, a plurality of discharging ports are formed in the upper part of the outer surface of the discharging cylinder, an electric telescopic cylinder is fixedly connected to the bottom wall of the discharging cylinder, and the output end of the electric telescopic cylinder is fixedly connected to a sealing valve.

[0013] Preferably, the sealing valve is slidably connected to the inner cavity of the discharging cylinder.

[0014] Preferably, the discharging cylinder communicates with the mixing kettle.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Through the designed circulating water heating device, the present device can heat the styrene-acrylic resin, reduce its viscosity, increase its fluidity, improve the reaction rate between the styrene-acrylic resin and the additive during stirring, enhance the properties of the styrene-acrylic resin such as hardness and toughness, thereby improving the purity and quality of the styrene-acrylic resin, reducing the content of impurities and defects in the product, and making the performance of the product more stable and reliable.

[0017] At the same time, through the designed vacuum pump and stirring mechanism, the present device realizes vacuum stirring of the styrene-acrylic resin. In a vacuum environment, the bubbles in the resin are more likely to expand and escape, thereby reducing the bubble content in the finished product and improving the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the internal perspective of the overall structure of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of the stirring mechanism of the present invention;

[0021] Figure 4 is a schematic diagram of the structure of the circulating water heating device of the present invention;

[0022] Figure 5 This is a schematic structural diagram of the discharging mechanism of the present invention.

[0023] In the figure: 1, mixing kettle; 2, feeding port; 3, kettle cover; 4, vacuum pump; 5, circulating water heating device; 6, water inlet valve; 7, stirring mechanism; 8, discharging mechanism; 71, stepping motor; 72, transmission rod; 73, stirring rod; 51, water pump; 52, heating box; 53, connecting pipe 1; 54, connecting pipe 2; 55, three-way pipe; 81, discharging cylinder; 82, discharging port; 83, sealing valve; 84, electric telescopic cylinder. Specific embodiments

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] Embodiment 1

[0026] As Figure 1 and Figure 2 shown, a high-efficiency stirring and mixing device includes a mixing kettle 1. The upper end of the mixing kettle 1 is rotatably connected to a kettle cover 3. The rear part of the upper end of the kettle cover 3 is fixedly connected to a vacuum pump 4. The front side of the upper part of the outer surface of the mixing kettle 1 is provided with a feeding port 2. The rear part of the outer surface of the mixing kettle 1 is provided with a circulating water heating device 5. The upper right part of the outer surface of the mixing kettle 1 is fixedly connected to a water inlet valve 6. The middle part of the lower end of the mixing kettle 1 is fixedly connected to a stirring mechanism 7. The middle part of the front part of the lower end of the mixing kettle 1 is fixedly connected to a discharging mechanism 8; the vacuum pump 4 can adopt equipment in the prior art, such as a small vacuum pump of model FY-2C-N;

[0027] Furthermore, the mixing kettle 1 is divided into an inner layer and an outer layer. The water inlet valve 6 communicates with the outer layer, and the feeding port 2 communicates with the inner layer.

[0028] Three support legs are fixedly connected to the lower part of the outer surface of the mixing kettle 1 of the present device in a circumferential array for supporting and fixing the device.

[0029] This device is used for stirring styrene-acrylic resin, which is copolymerized from styrene and acrylate monomers, to provide basic properties such as transparency, mechanical strength and weather resistance.

[0030] Before the device is implemented, the kettle cover 3 needs to be opened, and then resin is added to the inner layer of the mixing kettle 1. After the addition is completed, the kettle cover 3 is closed. Then, by injecting clear water into the water inlet valve 6, the clear water enters the space between the inner layer and the outer layer of the mixing kettle 1. After that, the circulating water heating device 5 is started to work. When the circulating water heating device 5 is working, it will heat the clear water added to the mixing kettle 1, and transfer the heat of the water to the inner layer of the mixing kettle 1. When the water heating is completed, the stirring mechanism 7 is started to work, so that the stirring mechanism 7 stirs the resin added to the inner layer of the mixing kettle 1. At the same time, the corresponding proportion of curing agent and filler are added according to the ratio. After the ratio is prepared, the materials are poured into the inner layer of the mixing kettle 1 from the feeding port 2. After the pouring is completed, the feeding port 2 is closed to make the inner layer of the mixing kettle 1 in a sealed state. Then, the vacuum pump 4 is started to make the vacuum pump 4 extract the air in the inner layer of the mixing kettle 1, so that the inner layer of the mixing kettle 1 is in a vacuum state. At this time, when the stirring mechanism 7 stirs the resin, the bubbles inside the resin can be reduced, the bubble content in the materials can be reduced, and the quality of the finished product can be improved.

[0031] During the working process, the circulating water heating device 5 can circulate and heat the clear water added to the water inlet valve 6, so that when the stirring mechanism 7 is stirring, the resin can be heated evenly, improving the stirring efficiency.

[0032] After the stirring is completed, the circulating water heating device 5 and the stirring mechanism 7 are closed and the vacuum pump 4 stops working, so that the inner layer of the mixing kettle 1 returns to the normal pressure state. At this time, a collecting bucket is placed under the discharging mechanism 8 to collect the stirred resin. After it is placed, the discharging mechanism 8 is started to move, so that the discharging mechanism 8 makes the resin in the inner layer of the mixing kettle 1 flow into the placed collecting bucket.

[0033] Example Two

[0034] To achieve the purpose of the stirring mechanism 7 stirring the resin, refer to Figure 3 , the stirring mechanism 7 includes a stepping motor 71, the stepping motor 71 is fixedly connected to the middle part of the lower end of the mixing kettle 1, and the output end of the stepping motor 71 is fixedly connected with a transmission rod 72. A plurality of stirring rods 73 are fixedly connected in a circular array on the upper, middle and lower parts of the outer surface of the transmission rod 72.

[0035] When the stepping motor 71 rotates, it will drive the transmission rod 72 to rotate together through a coupling. When the transmission rod 72 rotates, it will transfer the power to the connected stirring rods 73, driving the stirring rods 73 to rotate, so that the stirring rods 73 mix and stir the resin.

[0036] Further, to achieve the purpose of the circulating water heating device 5 circulating and heating the clear water injected into the water inlet valve 6, refer to Figure 4, the circulating water heating device 5 includes a water pump 51, the water pump 51 is fixedly connected to the upper side of the rear outer surface of the mixing kettle 1, the input end of the water pump 51 is fixedly connected with a heating tank 52, the input end of the heating tank 52 is fixedly connected with a first connecting pipe 53, and the water inlet of the first connecting pipe 53 is fixedly connected with a three-way pipe 55. The left and right water inlets of the three-way pipe 55 are both fixedly connected with a second connecting pipe 54;

[0037] The output end of the water pump 51 communicates with the outer layer of the mixing kettle 1, the heating tank 52 is fixedly connected to the middle side of the rear outer surface of the mixing kettle 1, and the two three-way pipes 55 are respectively fixedly connected to the left and right parts of the outer circle at the lower end of the mixing kettle 1.

[0038] During use, clean water is injected between the inner layer and the outer layer of the mixing kettle 1 through the water inlet valve 6, and then the heating tank 52 and the water pump 51 are started. When the water pump 51 works, it will draw the clean water injected by the water inlet valve 6 into the first connecting pipe 53 through the second connecting pipe 54 and the three-way pipe 55, and then the clean water enters the heating tank 52 from the first connecting pipe 53. When the clean water passes through the heating tank 52, the heating tank 52 will heat the clean water, and then the water pump 51 will transfer the heated water in the heating tank 52 to the upper part of the space between the inner layer and the outer layer of the mixing kettle 1 through the output end. According to the principle that hot water floats upward and cold water flows downward, the water sucked by the water pump 51 through the second connecting pipe 54 is water with a lower temperature, which is sucked into the heating tank 52 for heating, so that the temperature of the water between the inner layer and the outer layer of the mixing kettle 1 is consistent, and the heated water can better transfer the temperature evenly to the inner layer of the mixing kettle 1 to heat the resin.

[0039] The heating tank 52 is a device that can recycle and heat water. It usually adopts a closed-loop circulation design. After the heating unit heats the water, driven by the water pump 51, the hot water is transported into the mixing kettle 1. Then the cold water with a lower water temperature returns to the heating unit to continue heating, and so on in a cycle to achieve continuous heating. The heating tank 52 can adopt the equipment in the prior art, such as the circulating water heater with the model JGS2.

[0040] Embodiment Four

[0041] Refer to Figure 5 , the discharging mechanism 8 includes a discharging cylinder 81, the discharging cylinder 81 is fixedly connected to the middle front part of the lower end of the mixing kettle 1, several discharging ports 82 are arranged on the upper part of the outer surface of the discharging cylinder 81, an electric telescopic cylinder 84 is fixedly connected to the bottom wall of the discharging cylinder 81, and a sealing valve 83 is fixedly connected to the output end of the electric telescopic cylinder 84; wherein, the sealing valve 83 is slidably connected to the inner cavity of the discharging cylinder 81; the discharging cylinder 81 communicates with the mixing kettle 1.

[0042] After the raw materials such as resin are completely stirred and mixed, the circulating water heating device 5, the stirring mechanism 7 and the vacuum pump 4 are turned off, and then the electric telescopic cylinder 84 is started to move, so that the output end of the electric telescopic cylinder 84 is shortened. After the output end of the electric telescopic cylinder 84 is shortened, it will drive the sealing valve 83 to move downward in the inner cavity of the discharge cylinder 81. At this time, the isolation between the discharge port 82 and the mixing kettle 1 will be released, so that the resin flows out from the discharge port 82 into the collection bucket for collection.

[0043] It should be particularly noted that the specific installation methods, the connection methods of the circuits and the control methods of the electric telescopic cylinder 84, the water pump 51, the heating box 52, the stepping motor 71 and the vacuum pump 4 adopted in the present invention are all conventional designs, and the present invention will not be elaborated in detail.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency stirring and mixing device, comprising a mixing kettle (1), characterized in that: The upper end of the mixing kettle (1) is rotatably connected to a kettle cover (3), the rear portion of the upper end of the kettle cover (3) is fixedly connected to a vacuum pump (4), the upper front side of the outer surface of the mixing kettle (1) is provided with a feeding port (2), the rear portion of the outer surface of the mixing kettle (1) is provided with a circulating water heating device (5), the upper right side of the outer surface of the mixing kettle (1) is fixedly connected to a water inlet valve (6), the middle portion of the lower end of the mixing kettle (1) is fixedly connected to a stirring mechanism (7), and the middle portion of the front portion of the lower end of the mixing kettle (1) is fixedly connected to a discharging mechanism (8).

2. The high-efficiency stirring and mixing device according to claim 1, characterized in that: The mixing kettle (1) is divided into two layers, an inner layer and an outer layer. The water inlet valve (6) is connected to the outer layer, and the feed port (2) is connected to the inner layer.

3. The high-efficiency stirring and mixing device according to claim 1, characterized in that: The stirring mechanism (7) comprises a stepping motor (71), the stepping motor (71) is fixedly connected to the middle part of the lower end of the mixing kettle (1), the output end of the stepping motor (71) is fixedly connected to a transmission rod (72), and the upper part, middle part and lower part of the outer surface of the transmission rod (72) are respectively fixedly connected to a plurality of stirring rods (73) in a circular array.

4. The high-efficiency stirring and mixing device according to claim 1, characterized in that: The circulating water heating device (5) comprises a water pump (51), the water pump (51) is fixedly connected to the upper rear side of the outer surface of the mixing kettle (1), the input end of the water pump (51) is fixedly connected to a heating box (52), the input end of the heating box (52) is fixedly connected to a connecting pipe 1 (53), the water inlet of the connecting pipe 1 (53) is fixedly connected to a tee pipe (55), and the left and right water inlets of the tee pipe (55) are fixedly connected to connecting pipe 2 (54).

5. The high-efficiency stirring and mixing device according to claim 4, characterized in that: The output end of the water pump (51) is in communication with the outer layer of the mixing kettle (1), the heating box (52) is fixedly connected to the middle side of the rear portion of the outer surface of the mixing kettle (1), and the two three-way pipes (55) are respectively fixedly connected to the left and right portions of the outer ring of the lower end of the mixing kettle (1).

6. The high-efficiency stirring and mixing device according to claim 1, characterized in that: The discharging mechanism (8) comprises a discharging barrel (81), the discharging barrel (81) being fixedly connected to the middle side of the front lower end of the mixing kettle (1), a plurality of discharging ports (82) being provided on the upper portion of the outer surface of the discharging barrel (81), an electric telescopic cylinder (84) being fixedly connected to the bottom wall of the discharging barrel (81), and a sealing valve (83) being fixedly connected to the output end of the electric telescopic cylinder (84).

7. The high-efficiency stirring and mixing device according to claim 6, characterized in that: The sealing valve (83) is slidably connected to the inner cavity of the discharge cylinder (81).

8. The high-efficiency stirring and mixing device according to claim 6, characterized in that: The discharge cylinder (81) is in communication with the mixing kettle (1).

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