Small emulsion matrix preparation device
Through the agitating assembly controlled by the servo cylinder and piston pump, combined with the static mixer, the emulsification test is accurately simulated on-site process, solving the problem of inconsistent emulsification results, and improving the controllability of the viscosity and particle size distribution of the emulsified matrix.
Patent Information
- Application Number
- CN202422580850.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In the existing emulsification test experiments, factors such as the form of stirred blades, rotation speed, container diameter and structure affect the emulsification results, and the speed and time of adding water-phase solution are not unified, resulting in inaccurate distribution of matrix viscosity and particle size after emulsification, and it is impossible to accurately simulate on-site production.
The stirring component consisting of servo cylinder, piston pump, one-way valve and static mixer is adopted. The servo cylinder controls the negative pressure suction and positive pressure rollout of the stirring and piston pump through the servo cylinder, simulating mechanical shear and static mixing at the production site to achieve precise control of the oil phase and the aqueous phase solution.
It improves the accuracy of the emulsification test experiment, can simulate the emulsification process at the production site, control key parameters, reduce interference factors, and ensure the consistency of the viscosity and particle size distribution of the emulsified matrix.
Smart Images
Figure CN223287904U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of explosive production, in particular to a small-sized emulsified matrix preparation device. Background Art
[0002] In the field of emulsion matrix production, when conducting emulsion explosive formula tests or raw material inspections, emulsification small-scale tests are often required, and the amount of explosives in a single emulsion small-scale test generally does not exceed 1 kilogram.
[0003] During small-scale emulsification trials, a bench drill is often used to drive a stirring blade to simulate the emulsification process. The type of stirring blade varies among companies, and the impact on the emulsified matrix formed after the small-scale emulsification trial is unknown. Different blade types, rotation speeds, container diameters, and structures can all affect the final test results. During the small-scale trials, an aqueous solution was slowly added to the oil solution and mechanically stirred to achieve emulsification. However, the duration of aqueous solution addition varied among operators, the instantaneous flow rate during addition was not controlled, and the duration of stirring after the aqueous solution was added was not standardized. These factors significantly impacted the viscosity and particle size distribution of the matrix after emulsification. Furthermore, when using a bench drill to drive a stirring blade to simulate the emulsification process, the emulsification process is purely mechanical shearing, which differs from the existing production method of mechanical shear pre-emulsification followed by fine emulsification in a static mixer, and therefore cannot accurately simulate on-site production. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a small-scale emulsified matrix preparation device, which can improve the accuracy of emulsified small-scale test experiments simulating on-site production.
[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0006] The utility model provides a small-sized emulsified matrix preparation device, comprising a support and a stirring assembly arranged on the support, and further comprising: a servo electric cylinder, a piston pump, a first one-way valve, a second one-way valve and a static mixer; the servo electric cylinder and the piston pump are both arranged on the support, the telescopic end of the servo electric cylinder is fixedly connected to the piston of the piston pump, the piston pump has a feed port and a discharge port, the discharge port of the stirring assembly is communicated with the feed port of the piston pump, the discharge port of the piston pump is communicated with the static mixer, the first one-way valve is installed between the discharge port of the stirring assembly and the feed port of the piston pump, and the second one-way valve is installed between the discharge port of the piston pump and the static mixer; the stirring assembly can stir an oil phase solution and an aqueous phase solution to obtain a pre-emulsified emulsified matrix, and after the pre-emulsification of the stirring assembly, the first one-way valve is opened and the telescopic end of the servo electric cylinder is contracted, the piston in the piston pump moves close to the servo electric cylinder, the cavity in the piston pump increases and generates negative pressure, and the pre-emulsified emulsified matrix is sucked into the piston pump. The second one-way valve is then opened, extending the telescopic end of the servo cylinder. The piston in the piston pump moves away from the servo cylinder, reducing the volume and increasing the pressure within the piston pump. The pre-emulsified emulsified matrix is then pushed into the static mixer for rapid shearing, completing the static emulsification. This process fully simulates the production site, thereby improving the accuracy of the emulsification pilot test in simulating on-site production.
[0007] Optionally, one end of the static mixer away from the piston pump is connected to an elbow to facilitate material discharge.
[0008] Optionally, a plurality of sealing rubber rings are sleeved and fixed on the side wall of the piston of the piston pump to improve the sealing effect of the piston pump.
[0009] Optionally, a connector is provided between the telescopic end of the servo electric cylinder and the piston of the piston pump, so as to facilitate connection between the telescopic end of the servo electric cylinder and the piston of the piston pump.
[0010] Optionally, the stirring assembly includes a pre-emulsion tank, a servo motor, a main shaft and a stirring blade; the pre-emulsion tank is arranged on a support, the discharge port of the pre-emulsion tank is connected to a first one-way valve, the servo motor is arranged on the pre-emulsion tank, the main shaft is coaxially arranged on the rotating end of the servo motor, the stirring blade is arranged on the main shaft, and the stirring blade and the main shaft are both located in the pre-emulsion tank; first, the oil phase solution is added to the pre-emulsion tank, and then the rotating end of the servo motor drives the main shaft to rotate, and the main shaft drives the stirring blade to stir, and then the aqueous phase solution is added to the pre-emulsion tank, and the stirring is stopped after continuing for a period of time. At this time, the oil phase solution and the aqueous phase solution can be preliminarily emulsified to form an emulsified matrix after pre-emulsion.
[0011] Optionally, the stirring assembly further includes a feeding tank and a discharge pipe; the feeding tank is arranged on a support and located above the pre-emulsion tank, and the discharge pipe is connected to the discharge port of the feeding tank and extends into the pre-emulsion tank; by providing the feeding tank and the discharge pipe, the loading of the oil phase solution and the water phase solution can be facilitated.
[0012] Optionally, a flow control valve is installed on the discharge pipe. By setting the flow control valve, the feeding speed of the aqueous solution can be accurately controlled, thereby ensuring the viscosity and particle size distribution of the matrix after emulsification.
[0013] Optionally, the stirring blades are multi-layer blades to improve stirring uniformity.
[0014] Optionally, the side of the stirring blade away from the servo motor is close to the bottom of the pre-emulsion tank but does not contact the bottom of the pre-emulsion tank, so as to achieve a better stirring effect.
[0015] In summary, the present invention has at least the following beneficial technical effects:
[0016] After mechanical shearing and pre-emulsion in the pre-emulsion tank, the static emulsion is completed in the static mixer by piston pumping, which can completely simulate the production site. In the simulation, important parameters such as feeding time, pre-emulsion speed, pre-emulsion time and piston pump pushing speed can all be controlled by the emulsified matrix preparation device, eliminating interference factors in small-scale test preparation, thereby improving the accuracy of emulsification small-scale test experiment simulation on-site production. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of the structure of a small-scale emulsified matrix preparation device.
[0018] Explanation of the accompanying symbols: 1. Support; 2. Servo electric cylinder; 3. Piston pump; 4. First one-way valve; 5. Second one-way valve; 6. Static mixer; 7. Connector; 8. Elbow; 9. Feeding tank; 10. Discharge pipe; 11. Pre-milk tank; 12. Servo motor; 13. Main shaft; 14. Stirring blade; 15. Flow control valve. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0020] The terms used in the following embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, the singular expressions "a", "an", "said", "above", "the", and "this" are intended to include plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in the present invention refers to and includes any or all possible combinations of one or more of the listed items. The term "exemplary" means "serving as an example, embodiment, or illustration", and any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or to implicitly indicate the number of the indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, unless otherwise specified, "multiple" means two or more.
[0021] This embodiment provides a small-scale emulsified matrix preparation device.
[0022] refer to Figure 1 A small-scale emulsified matrix preparation device includes: a support 1, a stirring assembly, a servo electric cylinder 2, a piston pump 3, a first one-way valve 4, a second one-way valve 5 and a static mixer 6.
[0023] refer to Figure 1 The stirring assembly, servo electric cylinder 2, and piston pump 3 are all fixedly connected to the support 1. The telescopic end of the servo electric cylinder 2 is fixedly connected to the piston of the piston pump 3. The telescopic end of the servo electric cylinder 2 can drive the piston in the piston pump 3 to move back and forth. The piston pump 3 has a feed port and a discharge port at the end away from the servo electric cylinder 2. The stirring assembly can stir the aqueous phase solution and the oil phase solution, thereby preliminarily emulsifying the aqueous phase solution and the oil phase solution to form a pre-emulsified emulsified matrix. The discharge port of the stirring assembly is connected to the feed port of the piston pump 3 through a pipe body. The first one-way valve 4 is installed on the pipe body between the discharge port of the stirring assembly and the feed port of the piston pump 3. The discharge port of the piston pump 3 is connected to the static mixer 6 through the pipe body. The second one-way valve 5 is installed on the pipe body between the discharge port of the piston pump 3 and the static mixer 6.
[0024] After the stirring assembly completes pre-emulsification, the first one-way valve 4 is opened, and the telescopic end of the servo cylinder 2 is retracted. The piston in the piston pump 3 moves closer to the servo cylinder 2, increasing the cavity within the piston pump 3 and generating negative pressure within the piston pump 3. The pre-emulsified emulsified matrix is then drawn into the piston pump 3. The second one-way valve 5 is then opened, and the telescopic end of the servo cylinder 2 is extended. The piston in the piston pump 3 moves away from the servo cylinder 2, reducing the space within the piston pump 3 and increasing the pressure within the piston. The pre-emulsified emulsified matrix is then pushed into the static mixer 6 for rapid shearing to complete static emulsification. In this process, the preparation method of the small-scale emulsified matrix preparation device can fully simulate the production site, thereby improving the accuracy of the emulsification pilot experiment in simulating on-site production.
[0025] A connector 7 is provided between the servo electric cylinder 2 and the piston pump 3 to securely connect the telescopic end of the servo electric cylinder 2 to the piston of the piston pump 3. The connector 7 may be a threaded sleeve or a fixing pin.
[0026] The end of the static mixer 6 away from the piston pump 3 is also connected to an elbow 8, and the elbow 8 faces the direction of the ground when the small emulsified matrix preparation device is placed, so as to facilitate material discharge.
[0027] The inner diameter of the cylinder of the piston pump 3 is slightly larger than the outer diameter of the piston. A plurality of sealing rubber rings are fixedly mounted on the side wall of the piston of the piston pump 3 to enhance the sealing effect of the piston pump 3 .
[0028] refer to Figure 1 The stirring assembly includes a feeding tank 9, a discharge pipe 10, a pre-emulsion tank 11, a servo motor 12, a main shaft 13 and a stirring blade 14. The feeding tank 9 and the pre-emulsion tank 11 are both fixedly connected to the support 1, and the feeding tank 9 is located above the pre-emulsion tank 11. The discharge pipe 10 is connected to the discharge port of the feeding tank 9, and the discharge pipe 10 extends into the pre-emulsion tank 11. The servo motor 12 is installed on the pre-emulsion tank 11, the main shaft 13 is coaxially fixedly connected to the rotating end of the servo motor 12, and the stirring blade 14 is fixedly connected to the end of the main shaft 13 away from the servo motor 12, and the main shaft 13 and the stirring blade 14 are both located in the pre-emulsion tank 11. The discharge port of the pre-emulsion tank 11 is connected to the first one-way valve 4. At the same time, a flow control valve 15 is installed on the discharge pipe 10, and the flow control valve 15 is used to control the flow rate of the aqueous solution discharge.
[0029] In a pilot test of preparing a mixed emulsified matrix, the oil phase solution and the aqueous phase solution are first prepared according to the ratio. The oil phase solution is heated to 55°C and the aqueous phase solution is heated to 85°C. The oil phase solution is then poured into the feed tank 9 and flows into the pre-emulsion tank 11 through the discharge pipe 10. Parameters such as the stirring speed of the servo motor 12, the pre-emulsion time, and the withdrawal speed of the piston pump 3 are then set, and the emulsified matrix preparation device is started. The rotating end of the servo motor 12 then drives the main shaft 13 to begin rotating, which in turn drives the stirring blades 14 to begin stirring. At this point, the aqueous phase solution is poured into the feed tank 9 and, through the flow control valve 15, allows the entire aqueous phase solution to flow into the pre-emulsion tank 11 over 40 seconds. After the aqueous phase solution has been fully added to the pre-emulsion tank 11, stirring is continued for 60 seconds before stopping. At this point, the oil phase solution and the aqueous phase solution are initially emulsified to form a pre-emulsified emulsified matrix.
[0030] The stirring blade 14 is a multi-layer blade, the bottom of which (the side of the stirring blade 14 away from the servo motor 12 ) is close to the bottom of the pre-emulsion tank 11 but does not directly contact the bottom of the pre-emulsion tank 11 to ensure the pre-emulsion effect.
[0031] The implementation principle of a small-scale emulsified matrix preparation device in an embodiment of the present application is as follows: mechanical shearing pre-emulsion is performed in a pre-emulsion tank 11, and then the pre-emulsion is pumped by a piston pump 3 to a static mixer 6 to complete static emulsion. The preparation method can completely simulate the production site, and important parameters such as the feeding time, pre-emulsion rotation speed, pre-emulsion time, and the pushing speed of the piston pump 3 in this small-scale preparation method can all be controlled by the emulsified matrix preparation device, eliminating interference factors in the small-scale preparation, thereby improving the accuracy of the simulation of on-site production in the emulsification small-scale experiment.
[0032] The above embodiments are merely a detailed description of the technical solutions of the present invention. However, the description of the above embodiments is intended only to facilitate understanding of the present invention and should not be construed as limiting the present invention. Any changes or substitutions that can be readily conceived by a person skilled in the art within the technical scope disclosed in the present invention are intended to fall within the scope of protection of the present invention.
Claims
1. A small-sized emulsified matrix preparation device, comprising a support (1) and a stirring assembly arranged on the support (1), characterized in that: Also includes: A servo electric cylinder (2), a piston pump (3), a first one-way valve (4), a second one-way valve (5) and a static mixer (6); the servo electric cylinder (2) and the piston pump (3) are both arranged on a support (1); the telescopic end of the servo electric cylinder (2) is fixedly connected to the piston of the piston pump (3); the piston pump (3) has a feed port and a discharge port; the discharge port of the stirring component is connected to the feed port of the piston pump (3); the discharge port of the piston pump (3) is connected to the static mixer (6); the first one-way valve (4) is installed between the discharge port of the stirring component and the feed port of the piston pump (3); and the second one-way valve (5) is installed between the discharge port of the piston pump (3) and the static mixer (6).
2. A small-scale emulsified matrix preparation device according to claim 1, characterized in that: One end of the static mixer (6) away from the piston pump (3) is connected to an elbow (8).
3. A small-scale emulsified matrix preparation device according to claim 2, characterized in that: A plurality of sealing rubber rings are sleeved and fixed on the side wall of the piston of the piston pump (3).
4. A small-scale emulsified matrix preparation device according to claim 3, characterized in that: A connecting piece (7) is provided between the telescopic end of the servo electric cylinder (2) and the piston of the piston pump (3).
5. A small-scale emulsified matrix preparation device according to any one of claims 1 to 4, characterized in that: The stirring assembly comprises a pre-milk tank (11), a servo motor (12), a main shaft (13) and a stirring blade (14); the pre-milk tank (11) is arranged on a support (1); a discharge port of the pre-milk tank (11) is communicated with a first one-way valve (4); the servo motor (12) is arranged on the pre-milk tank (11); the main shaft (13) is coaxially arranged on a rotating end of the servo motor (12); the stirring blade (14) is arranged on the main shaft (13); and both the stirring blade (14) and the main shaft (13) are located in the pre-milk tank (11).
6. A small-scale emulsified matrix preparation device according to claim 5, characterized in that: The stirring assembly further comprises a feeding tank (9) and a discharge pipe (10); the feeding tank (9) is arranged on the support (1) and is located above the pre-milk tank (11); the discharge pipe (10) is connected to the discharge port of the feeding tank (9) and extends into the pre-milk tank (11).
7. A small-scale emulsified matrix preparation device according to claim 6, characterized in that: A flow control valve (15) is installed on the discharge pipe (10).
8. A small-scale emulsified matrix preparation device according to claim 5, characterized in that: The stirring blade (14) is a multi-layer blade.
9. A small-scale emulsified matrix preparation device according to claim 8, characterized in that: The side of the stirring blade (14) away from the servo motor (12) is close to the bottom of the pre-emulsion tank (11) and does not contact the bottom of the pre-emulsion tank (11).