A portable chemical mixing device

Abstract

This utility model discloses a mobile chemical mixing device, including a first pipe, a liquid inlet pipe, a second pipe, a third pipe, a liquid outlet pipe, a pressure gauge, an air inlet pipe, and an exhaust pipe integrated on a mixing tank. It also includes a liquid filtration device, a gas filtration device, and a cooling device. The combination of various pipes and valves enables functions such as circulating mixing, liquid filtration, pressure balancing, and liquid cooling, thereby improving mixing efficiency and effect. Furthermore, unified control through a control system enables automated mixing of the entire device. In addition, the mixing tank has a movable bracket at the bottom, which allows the entire device to be moved, making it highly mobile and flexible.

Description

Technical Field

[0001] This utility model relates to the field of chemical mixing and formulation technology, specifically to a mobile chemical mixing device. Background Technology

[0002] In many industrial sectors such as chemical and pharmaceutical manufacturing, the precise mixing of chemicals is a crucial fundamental process. Whether preparing solutions of specific concentrations, formulating reaction raw materials, or diluting pharmaceutical reagents, it is necessary to uniformly mix two or more chemicals according to a predetermined ratio to obtain a finished mixture that meets process requirements.

[0003] Currently, common chemical mixing methods mainly rely on fixed mixing equipment or manual operation. Fixed mixing equipment typically includes separate raw material tanks, mixing tanks, finished product tanks, and connecting pipelines, pumps, valves, and control systems. While this type of equipment achieves a degree of automation, it has significant limitations:

[0004] 1. Poor mobility and flexibility: Fixed-installation equipment lacks mobility and is difficult to meet the flexible mixing needs of different sites or mobile scenarios. On-site operations often rely on inefficient manual operation. All pipes, valves and other devices are installed separately, resulting in low flexibility.

[0005] 2. Low mixing efficiency: Mixing relies on stirring or static mixing, which takes a long time and results in poor uniformity.

[0006] 3. Safety risks and high costs: To ensure the safety of volatile, flammable and explosive chemicals in mixing, expensive explosion-proof pressure vessels (explosion-proof tanks) are often required, resulting in high equipment investment and maintenance costs; and poor control of pressure fluctuations inside the tank can easily lead to leakage or pollution risks.

[0007] 4. Limited proportioning accuracy: Traditional mixing equipment typically relies on flow meters or level gauges to control the amount of different components added. However, relying on flow meters or level gauges to control the feeding is easily affected by liquid properties (viscosity, density) and environmental factors, making it difficult to achieve high-precision mass proportioning. Utility Model Content

[0008] The purpose of this invention is to overcome the defects in the existing technology and provide a mobile chemical mixing device.

[0009] To achieve the above objectives, the technical solution of this utility model is to design a mobile chemical mixing device, including a mixing tank and a first pipe, a liquid inlet pipe, a second pipe, a third pipe, a liquid outlet pipe, and a pressure gauge integrated on the mixing tank, as well as an air inlet pipe and an exhaust pipe.

[0010] The mixing tank is connected to the raw liquid tank through a first pipe and an inlet pipe. Each inlet pipe is equipped with an inlet valve. The first pipe is equipped with a suction pump and a first valve. The outlet of the inlet valve is connected to the inlet of the suction pump, the outlet of the suction pump is connected to the first valve, and the first valve is connected to the mixing tank.

[0011] The two ends of the second pipeline are connected to the inlet of the raw liquid tank and the liquid suction pump, respectively, and a second valve is installed on the second pipeline.

[0012] The two ends of the third pipe are connected to the first pipe and the liquid outlet pipe, respectively, and a liquid filtration device is installed on the third pipe.

[0013] The other end of the liquid outlet pipe is connected to the finished product tank, and a liquid outlet valve is installed on the liquid outlet pipe.

[0014] The pressure gauge is installed on the mixing tank. One end of the air inlet pipe is the air inlet, and the other end is connected to the mixing tank. An air inlet valve is installed on the air inlet pipe.

[0015] One end of the exhaust pipe is an exhaust port, and the other end is connected to the mixing tank. An exhaust valve is installed on the exhaust pipe.

[0016] Furthermore, an air filter is installed on the air intake pipe, positioned between the air intake valve and the mixing tank. The air filter filters impurities from the air, preventing them from contaminating the mixed liquid.

[0017] Furthermore, the intake pipe is also equipped with a one-way valve, a pressure relief valve, and a pressure regulating valve. The one-way valve is located between the air filter and the mixing tank, and the pressure relief valve and the pressure regulating valve are located between the air filter and the intake valve in sequence.

[0018] Furthermore, a temperature sensor is installed on the mixing tank, and a cooling device is connected to the first pipe. The temperature sensor and the cooling device are linked. An exothermic reaction occurs during the mixing process. The cooling device, connected in series to the first pipe, cools the tank during circulation. The linkage between the temperature sensor and the cooling device ensures that when the temperature of the mixing tank exceeds a set temperature, the cooling device activates; when the temperature of the mixing tank falls below the set temperature, the cooling device shuts off.

[0019] Preferably, the inlet and outlet pipes are flexible hoses. The hoses are preferably made of PFA plastic.

[0020] Furthermore, it also includes a fourth pipeline, one end of which is connected to the pipeline between the first valve and the mixing tank, and the other end is connected to the end of the third pipeline. The third pipeline is equipped with a third valve, and the fourth pipeline is equipped with a fourth valve.

[0021] Preferably, the liquid filtration device comprises at least two sets. Multiple sets of liquid filtration devices are preferably filters with different filtration precisions, filtering impurities in the liquid layer by layer.

[0022] Furthermore, it also includes a detection pipeline, with a detection port at one end and the other end connected to the first pipeline. A detection valve is installed on the detection pipeline. Operators can draw a portion of the liquid from the detection port to check if mixing is complete, or an external automatic detection device can be connected for testing.

[0023] Furthermore, both the mixing tank and the stock solution tank are equipped with weighing devices at their bottoms. The weighing devices are preferably electronic scales, which can detect the weight of the remaining stock solution in the stock solution tank in real time, thereby inferring the weight of the consumed stock solution and controlling the mixing ratio of each stock solution.

[0024] Furthermore, a movable bracket is provided at the bottom of the mixing tank. The movable bracket is preferably a wheeled frame, but it can also be a pallet jack or forklift that can lift and move the mixing tank, thereby facilitating its movement.

[0025] All the valves mentioned above are preferably pneumatic valves, and the weighing devices are preferably electronic scales. The pneumatic valves, electronic scales, and other electrical equipment such as suction pumps are all controlled by a unified control system.

[0026] The advantages and beneficial effects of this utility model are as follows:

[0027] 1. All pipes, valves, suction pumps, etc. are integrated into the mixing tank, and a movable bracket is installed below the mixing tank, thereby achieving the purpose of equipment mobility and miniaturization.

[0028] 2. The weighing device dynamically controls the mixing ratio, resulting in more accurate mixing.

[0029] 3. The mixing tank integrates circulation, filtration, and sampling systems, forming a multi-equipment system that improves mixing efficiency.

[0030] 4. The control system controls the opening and closing of valves, thereby controlling the operation of various systems, and has a high degree of automation.

[0031] 5. The pressure balancing system ensures consistent pressure within the mixing tank at all times, preventing excessive pressure that could damage the tank and cause liquid leakage. Mixing tanks equipped with a pressure balancing system do not require explosion-proof tanks; conventional tanks can be used, saving costs. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the mixing device of this utility model;

[0033] Figure 2 This is a schematic diagram of another embodiment of the mixing device of this utility model.

[0034] In the diagram: 1. Mixing tank; 11. First pipeline; 110. Suction pump; 111. First valve; 12. Second pipeline; 121. Second valve; 13. Third pipeline; 131. Third valve; 132. Liquid filtration device; 14. Fourth pipeline; 141. Fourth valve; 15. Temperature sensor; 16. Cooling device; 2. Inlet pipeline; 21. Inlet valve; 3. Outlet pipeline; 31. Outlet valve; 4. Pressure gauge; 5. Air inlet pipeline; 50. Air inlet; 51. Air inlet valve; 52. Air filtration device; 53. Check valve; 54. Pressure relief valve; 55. Pressure regulating valve; 6. Exhaust pipeline; 60. Exhaust port; 61. Exhaust valve; 7. Raw material tank; 8. Finished product tank; 9. Detection pipeline; 90. Detection port; 91. Detection valve; 10. Weighing device; 101. Movable bracket. Detailed Implementation

[0035] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0036] according to Figure 1 As shown, this utility model is a mobile chemical mixing device, including a mixing tank 1 and a first pipe 11, a liquid inlet pipe 2, a second pipe 12, a third pipe 13, a liquid outlet pipe 3, and a pressure gauge 4 integrated on the mixing tank 1, and also includes an air inlet pipe 5 and an exhaust pipe 6.

[0037] The mixing tank 1 is connected to the raw liquid tank 7 through the first pipe 11 and the liquid inlet pipe 2. Each liquid inlet pipe 2 is equipped with a liquid inlet valve 21. The first pipe 11 is equipped with a liquid suction pump 110 and a first valve 111. The outlet end of the liquid inlet valve 21 is connected to the liquid inlet of the liquid suction pump 110, and the liquid outlet of the liquid suction pump 110 is connected to the first valve 111. The first valve 111 is connected to the mixing tank 1.

[0038] The two ends of the second pipe 12 are connected to the inlet of the raw liquid tank 7 and the liquid suction pump 110, respectively, and a second valve 121 is installed on the second pipe 12.

[0039] The two ends of the third pipe 13 are connected to the first pipe 11 and the liquid outlet pipe 3, respectively, and a liquid filtration device 132 is installed on the third pipe 13.

[0040] The other end of the liquid outlet pipe 3 is connected to the finished product tank 8, and a liquid outlet valve 31 is installed on the liquid outlet pipe 3.

[0041] Pressure gauge 4 is installed on mixing tank 1. One end of air inlet pipe 5 is air inlet 50, and the other end is connected to mixing tank 1. Air inlet valve 51 is installed on air inlet pipe 5.

[0042] One end of the exhaust pipe 6 is an exhaust port 60, and the other end is connected to the mixing tank 1. An exhaust valve 61 is installed on the exhaust pipe 6.

[0043] A temperature sensor 15 is installed on the mixing tank 1, and a cooling device 16 is connected to the first pipe 11. The temperature sensor 15 and the cooling device 16 are linked together.

[0044] It also includes a detection pipe 9, one end of which is a detection port 90, and the other end is connected to the first pipe 11. A detection valve 91 is installed on the detection pipe 9.

[0045] Both the mixing tank 1 and the raw liquid tank 7 are equipped with weighing devices 10 at their bottoms.

[0046] The specific workflow is as follows: Set the mixing ratio and weight of various raw materials, and determine the required pressure for mixing based on the characteristics of each raw material. Next, open the inlet valve 21 and the first valve 111, and start the suction pump 110. The suction pump 110 draws liquid from the raw material tank 7 through the inlet pipe 2 and the first pipe 11 into the mixing tank 1. At this time, the value of the weighing device 10 below the raw material tank 7 will gradually decrease as the liquid in the tank decreases. When the decreased weight is the required weight of the raw material in the tank 7, close the inlet valve 21. When all raw materials reach the set weight, all inlet valves 21 are closed, and all raw materials undergo initial mixing in the mixing tank 1, ending the inlet process. When there is only one inlet pipe 11, different raw materials need to be pumped in stages. When there are multiple inlet pipes 11, different raw material tanks 7 can be connected simultaneously for pumping.

[0047] Next, the second valve 121 on the second pipeline 12 is activated, and the first pipeline 11, the second pipeline 12, and the mixing tank 1 form a closed loop. Under the action of the suction pump 110, the mixed liquid in the mixing tank 1 is continuously drawn through the second pipeline 12 and flows back into the mixing tank 1 through the first pipeline 11 to achieve cyclic mixing, improve the mixing effect and the uniformity of mixing. During the cyclic mixing process, the mixed liquid can be detected through the detection port 90 on the detection pipeline 9. When the detection result meets the requirements, the mixing process ends.

[0048] Throughout the mixing process, temperature sensor 15 continuously monitors the temperature inside mixing tank 1. When the temperature of mixing tank 1 exceeds the set temperature, the control system controls cooling device 16 to start cooling. When the temperature of mixing tank 1 falls below the set temperature, cooling device 16 is turned off.

[0049] Throughout the mixing process, the pressure value on the pressure gauge 4 on the mixing tank 1 is compared with the required pressure value, and the pressure inside the mixing tank 1 is adjusted by opening and closing the air inlet valve 51 and the air outlet valve 61, thereby providing a suitable pressure for mixing.

[0050] Next, close the first valve 111 on the first pipe 11 and open the outlet valve 31 on the outlet pipe 3. At this time, part of the first pipe 11, the second pipe 12, the third pipe 13, and the outlet pipe 3 form a channel. Under the action of the suction pump 110, the liquid flows from the mixing tank 1 through the second pipe 12, part of the first pipe 11, the third pipe 13, and the outlet pipe 3 into the finished product tank 8. When flowing through the third pipe 13, the mixed liquid will be filtered by the liquid filtration device 132. At this time, the outlet process ends.

[0051] All the valves, suction pumps 110, pressure gauges 4, weighing devices 10, temperature sensors 15, cooling devices 16, etc. mentioned above can be intelligently controlled by the control system.

[0052] according to Figure 2 As shown, an air filter device 52 is also provided on the air intake pipe 5, and the air filter device 52 is located between the air intake valve 51 and the mixing tank 1.

[0053] The air intake pipe 5 is also equipped with a one-way valve 53, a pressure relief valve 54, and a pressure regulating valve 55. The one-way valve 53 is located between the air filter device 52 and the mixing tank 1, and the pressure relief valve 54 and the pressure regulating valve 55 are located between the air filter device 52 and the air intake valve 51 in sequence.

[0054] The inlet pipe 2 and outlet pipe 3 are flexible hoses.

[0055] It also includes a fourth pipe 14, one end of which is connected to the pipe between the first valve 111 and the mixing tank 1, and the other end is connected to the end of the third pipe 13. The third pipe 13 is equipped with a third valve 131, and the fourth pipe 14 is equipped with a fourth valve 141.

[0056] The liquid filtration device 132 comprises at least two sets.

[0057] The bottom of the mixing tank 1 is provided with a movable bracket 101.

[0058] The specific workflow is as follows:

[0059] The liquid inlet process is the same as in the previous embodiment. In addition to the mixing process described in the previous embodiment, the mixing process is further modified as follows: After the liquid inlet process is completed, the first valve 111 is closed, and the third valve 131 on the third pipe 13 and the fourth valve 141 on the fourth pipe 14 are opened. At this time, the mixing liquid is drawn out from the mixing tank 1 by the suction pump 110, and flows into the mixing tank 1 in sequence through the second pipe 12, part of the first pipe 11, the third pipe 13, and finally through the fourth pipe 14 and the remaining part of the first pipe 11. When passing through the third pipe 13, the liquid filtration device 132 on it will perform multi-layer filtration on the liquid. Therefore, while circulating, the liquid is also filtered.

[0060] During the entire mixing process, the pressure inside the mixing tank 1 is adjusted in a way that differs from the previous embodiment. The air filter device 52 on the air inlet pipe 5 can filter the air to prevent impurities from affecting the mixing effect. The one-way valve 53, pressure relief valve 54, and pressure regulating valve 55 on the air inlet pipe 5 can control the pressure inside the mixing tank 1 and prevent pipe rupture caused by a sudden increase in pressure.

[0061] In the liquid discharge stage, in addition to the above embodiment, the third valve 131 on the third pipe 13 can be closed, and the fourth valve 141 and the first valve 111 on the fourth pipe 14 can be opened, so that the liquid in the mixing tank 1 enters the liquid discharge pipe 3 through the second pipe 12, the first pipe 11, and the fourth pipe 14 in sequence, and then flows into the finished product tank 8.

[0062] All the valves, suction pump 110, pressure gauge 4, weighing device 10 and other devices mentioned above can be intelligently controlled through the control system.

[0063] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A portable chemical mixing device, comprising a mixing tank (1) and a first pipe (11), an inlet pipe (2), a second pipe (12), a third pipe (13), an outlet pipe (3), and a pressure gauge (4) integrated on the mixing tank (1), characterized in that, It also includes an intake pipe (5) and an exhaust pipe (6); The mixing tank (1) is connected to the raw liquid tank (7) through the first pipe (11) and the liquid inlet pipe (2). Each liquid inlet pipe (2) is equipped with a liquid inlet valve (21). The first pipe (11) is equipped with a liquid suction pump (110) and a first valve (111). The outlet end of the liquid inlet valve (21) is connected to the liquid inlet of the liquid suction pump (110), the liquid outlet of the liquid suction pump (110) is connected to the first valve (111), and the first valve (111) is connected to the mixing tank (1). The two ends of the second pipe (12) are connected to the inlet of the raw liquid tank (7) and the liquid suction pump (110) respectively, and a second valve (121) is provided on the second pipe (12); The two ends of the third pipe (13) are respectively connected to the first pipe (11) and the liquid outlet pipe (3), and a liquid filtration device (132) is provided on the third pipe (13); The other end of the liquid outlet pipe (3) is connected to the finished product tank (8), and a liquid outlet valve (31) is provided on the liquid outlet pipe (3); The pressure gauge (4) is installed on the mixing tank (1), one end of the air inlet pipe (5) is an air inlet (50), and the other end is connected to the mixing tank (1). An air inlet valve (51) is installed on the air inlet pipe (5). One end of the exhaust pipe (6) is an exhaust port (60), and the other end is connected to the mixing tank (1). An exhaust valve (61) is provided on the exhaust pipe (6).

2. The mobile chemical compounding device of claim 1, wherein, An air filter device (52) is also provided on the air intake pipe (5), and the air filter device (52) is located between the air intake valve (51) and the mixing tank (1).

3. A mobile chemical compounding device as defined in claim 2, wherein, The air intake pipe (5) is also equipped with a one-way valve (53), a pressure relief valve (54), and a pressure regulating valve (55). The one-way valve (53) is located between the air filter device (52) and the mixing tank (1). The pressure relief valve (54) and the pressure regulating valve (55) are located between the air filter device (52) and the air intake valve (51) in sequence.

4. The mobile chemical compounding device of claim 1, wherein, A temperature sensor (15) is installed on the mixing tank (1), and a cooling device (16) is connected to the first pipe (11). The temperature sensor (15) and the cooling device (16) are linked together.

5. The mobile chemical compounding device of claim 1, wherein, The inlet pipe (2) and outlet pipe (3) are flexible hoses.

6. The mobile chemical compounding device of claim 1, wherein, It also includes a fourth pipe (14), one end of which is connected to the pipe between the first valve (111) and the mixing tank (1), and the other end is connected to the end of the third pipe (13). The third pipe (13) is equipped with a third valve (131), and the fourth pipe (14) is equipped with a fourth valve (141).

7. The mobile chemical compounding device of claim 1, wherein, The liquid filtration device (132) consists of at least two sets.

8. The mobile chemical compounding device of claim 1, wherein, It also includes a detection pipe (9), one end of which is a detection port (90), and the other end is connected to the first pipe (11). A detection valve (91) is installed on the detection pipe (9).

9. The mobile chemical compounding device of claim 1, wherein, Weighing devices (10) are installed at the bottom of both the mixing tank (1) and the raw liquid tank (7).

10. The mobile chemical compounding device of claim 1, wherein, The bottom of the mixing tank (1) is provided with a movable bracket (101).

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