Automatic high-temperature solid-liquid mixing device

Abstract

The utility model discloses an automatic high-temperature solid-liquid mixing device which comprises a fixing frame and a stirring kettle arranged on the fixing frame, a vacuumizing mechanism is arranged on one side of the stirring kettle and comprises a vacuum pump arranged on one side of the stirring kettle, the output end of the vacuum pump is communicated with a first communicating pipe, and the output end of the first communicating pipe is communicated with a second communicating pipe. The end, away from the vacuum pump, of the first communicating pipe is communicated with a gas storage tank, and the end, away from the first communicating pipe, of the gas storage tank is communicated with the stirring kettle through a second communicating pipe. According to the automatic high-temperature solid-liquid mixing device, a basis is provided for the powder feeding mechanism and the liquid feeding mechanism through the arranged vacuumizing mechanism, materials are sucked into the stirring kettle through negative pressure, and the problems that when an existing solid-liquid mixing device is used for feeding, solid flies, and high-temperature feeding is difficult can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to an automatic high-temperature solid-liquid mixing device. Background Art

[0002] Solid-liquid mixing devices are widely used in the production and manufacturing of chemical products, and can mix and disperse solid and liquid materials, that is, they can be used in physical mixing processes or chemical reaction processes. Existing solid-liquid mixing devices usually add solid materials and liquid materials into the reaction kettle separately and disperse them by stirring. At normal temperature or when the temperature is not high, liquid materials are usually pumped, and solid materials are usually manually poured or transported by powder pumps. During the pouring or pumping process of solid materials, there will be a problem of flying, polluting the environment and even damaging the health of operators. Moreover, after the solid materials enter the reaction kettle, they will not immediately enter the liquid, resulting in increased difficulty in dispersion and poor dispersion effect. At high temperatures, liquid materials can still be pumped, but the feeding difficulty of solid materials increases. When using the manual pouring method, there are risks of scalding and pollution, and the temperature resistance of powder pumps is limited. When the temperature exceeds 100 °C, the cost increases significantly.

[0003] Therefore, it is very necessary to propose an automatic high-temperature solid-liquid mixing device to solve the above problems. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an automatic high-temperature solid-liquid mixing device, which can effectively solve the problems of solid flying, difficult high-temperature feeding, uneven mixing and high cost in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An automatic high-temperature solid-liquid mixing device includes a fixing frame and a stirring kettle arranged on the fixing frame. A vacuum pumping mechanism is arranged on one side of the stirring kettle. The vacuum pumping mechanism includes a vacuum pump arranged on one side of the stirring kettle. The output end of the vacuum pump is communicated with a first connecting pipe. The end of the first connecting pipe far away from the vacuum pump is communicated with an air storage tank. The end of the air storage tank far away from the first connecting pipe is communicated with the stirring kettle through a second connecting pipe;

[0007] It also includes a powder feeding mechanism. The powder feeding mechanism includes a powder bin arranged on one side of the stirring kettle. One side of the powder bin is communicated with a diaphragm pump, and the diaphragm pump is used to transport powder into the powder bin. A powder pipeline is arranged at the bottom of the powder bin, and the end of the powder pipeline far away from the powder bin is communicated with the stirring kettle;

[0008] It also includes a liquid feeding mechanism, which includes a circulation pump arranged on one side of the stirring kettle. The liquid outlet end of the circulation pump is provided with a first circulation pipeline, and the end of the first circulation pipeline far from the circulation pump is communicated with the upper end of the stirring kettle. The liquid inlet end of the circulation pump is provided with a second circulation pipeline, and the other end of the second circulation pipeline is communicated with the bottom of the stirring kettle.

[0009] Preferably, jacket cooling vacuum tubes for cooling the gas are arranged on the outer sides of the first connecting pipe and the second connecting pipe.

[0010] Preferably, a second filter is arranged at one end of the second connecting pipe close to the stirring kettle;

[0011] A first filter is arranged on the second circulation pipeline.

[0012] Preferably, it also includes a temperature control mechanism, which includes a mold temperature controller arranged on one side of the stirring kettle. The liquid outlet end of the mold temperature controller is connected with a hot oil pipeline, and the end of the hot oil pipeline far from the mold temperature controller is communicated with the bottom of the stirring kettle. The liquid inlet end of the mold temperature controller is provided with an oil return pipeline, and the end of the oil return pipeline far from the mold temperature controller is communicated with the upper end of the stirring kettle.

[0013] Preferably, a stirring mechanism is arranged on the stirring kettle, which includes a first stirring shaft rotatably connected to the middle of the stirring kettle. Both ends of the inner side of the stirring kettle are rotatably connected with second stirring shafts. Above the stirring kettle, there is a motor assembly for driving the first stirring shaft and the second stirring shaft to rotate. A stirring frame in a "U" shape is fixedly arranged at the lower end of the first stirring shaft. A paddle is arranged at the lower end of the first stirring shaft. A first stirring blade spaced from the paddle is arranged on the side wall of the first stirring shaft. A second stirring blade spaced from the paddle is arranged on the inner side of the upper end of the stirring frame. A scraper corresponding to the inner wall of the stirring kettle is arranged on the outer side of the stirring frame.

[0014] Preferably, a control cabinet is arranged on one side of the stirring kettle.

[0015] Compared with the prior art, the present utility model provides an automatic high-temperature solid-liquid mixing device, which has the following beneficial effects:

[0016] This automatic high-temperature solid-liquid mixing device provides a basis for the powder feeding mechanism and the liquid feeding mechanism through the arranged vacuum pumping mechanism. By sucking materials into the stirring kettle under negative pressure, it can effectively solve the problems of solid flying and difficult high-temperature feeding existing in the feeding of the existing solid-liquid mixing device. It can realize the automatic feeding of solid and liquid raw materials, improve the efficiency and increase the safety. Through the arranged temperature control mechanism, it is convenient to heat and control the temperature of the stirring kettle. The temperature of the stirring kettle is controlled by the method of electric heating and heat-conducting oil, and the heating effect is good. Through the arranged stirring mechanism composed of a variety of stirring structures, the stirring and mixing effect can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the present utility model;

[0018] Figure 2 is a schematic view of the overall structure of the fixing frame and the stirring kettle of the present utility model;

[0019] Figure 3 is a schematic structural view of the stirring kettle of the present utility model.

[0020] In the figure: 1, fixing frame; 2, stirring kettle; 3, motor assembly; 4, circulation pump; 5, powder bin; 6, diaphragm pump; 7, mold temperature controller; 8, control cabinet; 9, vacuum pump; 10, air storage tank; 11, jacket cooling vacuum tube; 12, first circulation pipeline; 13, second circulation pipeline; 14, first filter; 15, oil return pipeline; 16, hot oil pipeline; 17, first connecting pipe; 18, second filter; 19, powder pipeline; 20, first stirring shaft; 21, second connecting pipe; 22, second stirring shaft; 23, stirring frame; 24, paddle; 25, first stirring blade; 26, second stirring blade; 27, scraper. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Such as Figures 1-3As shown in the figure, an automated high-temperature solid-liquid mixing device includes a fixed frame 1 and a stirring kettle 2 disposed on the fixed frame 1. An exhaust valve is also provided on the stirring kettle 2. A vacuum pumping mechanism is disposed on one side of the stirring kettle 2. The vacuum pumping mechanism includes a vacuum pump 9 disposed on one side of the stirring kettle 2. The output end of the vacuum pump 9 is communicated with a first connecting pipe 17. The end of the first connecting pipe 17 away from the vacuum pump 9 is communicated with a gas storage tank 10. The gas storage tank 10 can store a certain amount of gas and play a buffering role, so that the pressure in the system is more stable, reducing the impact of pressure fluctuations on the system. Moreover, in the case of intermittent operation of the vacuum pump 9, the gas storage tank 10 can provide gas when the vacuum pump 9 is not working, reducing the frequent start and stop of the vacuum pump 9, extending its service life, improving work efficiency. The end of the gas storage tank 10 away from the first connecting pipe 17 is communicated with the stirring kettle 2 through a second connecting pipe 21. The vacuum pressure when evacuating the stirring kettle 2 is not lower than -0.09 MPa. Jacket cooling vacuum tubes 11 for cooling the gas are provided on the outer sides of the first connecting pipe 17 and the second connecting pipe 21. Cooling water can be introduced into the jacket cooling vacuum tubes 11. When the temperature in the stirring kettle 2 is higher than 100 °C, the high-temperature gas in the pipeline can be cooled through the jacket cooling vacuum tubes 11. A second filter 18 is provided at the end of the second connecting pipe 21 close to the stirring kettle 2. The filter screen of the second filter 18 is not lower than 1000 meshes, which can prevent solid particles in the stirring kettle 2 from entering the vacuum pumping mechanism;

[0023] It further includes a powder feeding mechanism. The powder feeding mechanism includes a powder bin 5 disposed on one side of the stirring kettle 2. A diaphragm pump 6 is communicated with one side of the powder bin 5. The diaphragm pump 6 is used to convey the powder into the powder bin 5. A powder pipeline 19 is provided at the bottom of the powder bin 5, and the end of the powder pipeline 19 away from the powder bin 5 is communicated with the stirring kettle 2. As needed, the powder bin 5 and the powder can be heated, and the heat-resistant temperature is not lower than 200 °C;

[0024] It further includes a liquid feeding mechanism. The liquid feeding mechanism includes a circulation pump 4 disposed on one side of the stirring kettle 2. A first circulation pipeline 12 is provided at the liquid outlet end of the circulation pump 4, and the end of the first circulation pipeline 12 away from the circulation pump 4 is communicated with the upper end of the stirring kettle 2. A second circulation pipeline 13 is provided at the liquid inlet end of the circulation pump 4, and the other end of the second circulation pipeline 13 is communicated with the bottom of the stirring kettle 2. A first filter 14 is provided on the second circulation pipeline 13, which can both circulate and filter the materials in the stirring kettle 2, automatically inject liquid raw materials into the stirring kettle 2, and also discharge materials.

[0025] It also includes a temperature control mechanism. The temperature control mechanism includes a mold temperature controller 7 disposed on one side of the stirring kettle 2. The liquid outlet end of the mold temperature controller 7 is connected to a hot oil pipeline 16, and the end of the hot oil pipeline 16 away from the mold temperature controller 7 communicates with the bottom of the stirring kettle 2. The liquid inlet end of the mold temperature controller 7 is provided with a return oil pipeline 15, and the end of the return oil pipeline 15 away from the mold temperature controller 7 communicates with the upper end of the stirring kettle 2. The mold temperature controller 7 consists of an electric heating device, a temperature control device, and a heat transfer oil tank, which is a prior art. It uses the method of electrically heating the heat transfer oil, with a maximum temperature of up to 260°C and a temperature control accuracy of ±1°C. It enters the jacket of the stirring kettle 2 through the hot oil pipeline 16 and returns to the mold temperature controller 7 through the return oil pipeline 15 to achieve temperature control of the stirring kettle 2.

[0026] A stirring mechanism is provided on the stirring kettle 2. The stirring mechanism includes a first stirring shaft 20 rotatably connected to the middle of the stirring kettle 2, with a stirring speed of 0 - 50 rpm. Both ends inside the stirring kettle 2 are rotatably connected to a second stirring shaft 22, with a stirring speed of 0 - 700 rpm. Above the stirring kettle 2, there is a motor assembly 3 for driving the rotation of the first stirring shaft 20 and the second stirring shaft 22. As can be seen from the figure, the motor assembly 3 has three motors. One of them is used to drive the rotation of the first stirring shaft 20, and the other two drive the rotation of the second stirring shaft 22 through synchronous belts. At the lower end of the first stirring shaft 20, a stirrer frame 23 in a "U" shape is fixedly provided. At the lower end of the first stirring shaft 20, there are paddle blades 24. On the side wall of the first stirring shaft 20, there are first stirring blades 25 spaced apart from the paddle blades 24. Inside the upper end of the stirrer frame 23, there are second stirring blades 26 spaced apart from the paddle blades 24. Multiple stirring structures cooperate with each other, resulting in a good stirring effect. On the outside of the stirrer frame 23, there is a scraper 27 corresponding to the inner wall of the stirring kettle 2. The scraper 27 can continuously scrape the materials on the inner wall of the stirring kettle 2, facilitating the uniformity of stirring and mixing.

[0027] A control cabinet 8 is provided on one side of the stirring kettle 2. The control cabinet 8 consists of wires, a controller, and a touch screen, and can achieve automatic control and display.

[0028] In addition, as can be seen from the figure, valves are provided on the second connecting pipe 21, the first circulation pipeline 12, the second circulation pipeline 13, the return oil pipeline 15, and the hot oil pipeline 16 to control the on - off of the pipeline.

[0029] It should be noted that the present utility model is an automated high-temperature solid-liquid mixing device. When in use, the diaphragm pump 6 is turned on, and the solid raw materials in bags or barrels are automatically pumped into the powder bin 5 through the diaphragm pump 6. According to needs, the powder bin 5 can also be placed in an oven and heated to a specified temperature. Then, the circulation pump 4 is turned on, and the liquid raw materials in barrels are automatically pumped into the stirring kettle 2 through the circulation pump 4 and the first circulation pipeline 12. The motor assembly 3 is turned on for stirring, and the mold temperature controller 7 is turned on to set a specified temperature to heat the stirring kettle 2 to the specified temperature. The vacuum pump 9 and the jacket cooling vacuum tube 11 are turned on, and cooling water is introduced into the jacket cooling vacuum tube 11 to evacuate the stirring kettle 2. The vacuum pressure is not less than -0.09 MPa. At this time, the stirring speed of the second stirring shaft 22 is set at 500 rpm. The valve on the powder pipeline 19 is opened to automatically suck the solid raw materials in the powder bin 5 into the stirring kettle 2. After all the solid raw materials in the powder bin 5 are sucked into the stirring kettle 2, the vacuum pump 9 is turned off, and the exhaust valve of the stirring kettle 2 is opened to slowly relieve the pressure of the stirring kettle 2 until the pressure is 0. After the solid and liquid raw materials in the stirring kettle 2 are evenly mixed, the circulation pump 4 is turned on to filter and circulate the material. After the filtration and circulation are completed, the material is discharged.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automated high-temperature solid-liquid mixing device, comprising a fixed frame (1) and a stirring kettle (2) arranged on the fixed frame (1), characterized in that: A vacuum pumping mechanism is provided on one side of the stirring tank (2), the vacuum pumping mechanism comprising a vacuum pump (9) provided on one side of the stirring tank (2), the output end of the vacuum pump (9) being connected to a first connecting pipe (17), the end of the first connecting pipe (17) away from the vacuum pump (9) being connected to a gas storage tank (10), and the end of the gas storage tank (10) away from the first connecting pipe (17) being connected to the stirring tank (2) via a second connecting pipe (21); The invention also comprises a powder feeding mechanism, wherein the powder feeding mechanism comprises a powder bin (5) arranged on one side of the stirring kettle (2), one side of the powder bin (5) is connected to a diaphragm pump (6), and the diaphragm pump (6) is used to transport the powder to the powder bin (5), and a powder pipeline (19) is arranged at the bottom of the powder bin (5), and the end of the powder pipeline (19) away from the powder bin (5) is connected to the stirring kettle (2); The invention also comprises a liquid feeding mechanism, wherein the liquid feeding mechanism comprises a circulation pump (4) arranged on one side of the stirring tank (2), a first circulation pipeline (12) being arranged at a liquid outlet end of the circulation pump (4), and an end of the first circulation pipeline (12) away from the circulation pump (4) being connected to the upper end of the stirring tank (2), and a second circulation pipeline (13) being arranged at a liquid inlet end of the circulation pump (4), and the other end of the second circulation pipeline (13) being connected to the bottom of the stirring tank (2).

2. An automated high-temperature solid-liquid mixing device according to claim 1, characterized in that: The outer sides of the first connecting pipe (17) and the second connecting pipe (21) are both provided with jacket cooling vacuum pipes (11) for cooling the gas.

3. An automated high-temperature solid-liquid mixing device according to claim 1, characterized in that: A second filter (18) is provided at one end of the second connecting pipe (21) close to the stirring tank (2); The second circulation pipeline (13) is provided with a first filter (14).

4. The automated high-temperature solid-liquid mixing device according to claim 1, characterized in that: The invention also comprises a temperature control mechanism, wherein the temperature control mechanism comprises a mold temperature controller (7) arranged on one side of the stirring kettle (2); a hot oil pipeline (16) is connected to the liquid outlet end of the mold temperature controller (7), and the end of the hot oil pipeline (16) away from the mold temperature controller (7) is connected to the bottom of the stirring kettle (2); a return oil pipeline (15) is arranged at the liquid inlet end of the mold temperature controller (7), and the end of the return oil pipeline (15) away from the mold temperature controller (7) is connected to the upper end of the stirring kettle (2).

5. The automated high-temperature solid-liquid mixing device according to claim 1, characterized in that: The stirring tank (2) is provided with a stirring mechanism, the stirring mechanism comprising a first stirring shaft (20) rotatably connected to the middle of the stirring tank (2), second stirring shafts (22) rotatably connected to both ends of the inner side of the stirring tank (2), a motor assembly (3) for driving the first stirring shaft (20) and the second stirring shaft (22) to rotate is provided above the stirring tank (2), a U-shaped stirring frame (23) is fixedly provided at the lower end of the first stirring shaft (20), a paddle (24) is provided at the lower end of the first stirring shaft (20), a first stirring blade (25) spaced apart from the paddle (24) is provided on the side wall of the first stirring shaft (20), a second stirring blade (26) spaced apart from the paddle (24) is provided on the inner side of the upper end of the stirring frame (23), and a scraper (27) corresponding to the inner wall of the stirring tank (2) is provided on the outer side of the stirring frame (23).

6. An automated high-temperature solid-liquid mixing device according to any one of claims 1 to 5, characterized in that: A control cabinet (8) is provided on one side of the stirring tank (2).

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