High-shear emulsification reaction kettle for defoaming agent production

Abstract

The utility model relates to the technical field of chemical production equipment, and discloses a high-shear emulsification reaction kettle for producing a defoaming agent. Comprising a base, a reaction tank, a vacuum pump, a feeding pipe, a protection mechanism and an anti-leakage mechanism. The protection mechanism comprises an impurity collection box, a filter plate, a sliding rod, a clamping plate and a reset assembly, the reset assembly is composed of a movable plate and a first spring, and the filter plate is clamped and fixed through sliding fit of the movable plate and the guide plate and reset of the spring. The anti-leakage mechanism comprises an end cover, a sealing ring, a push plate, a telescopic rod and a second spring, the push plate continuously extrudes the sealing ring under the elastic action of the second spring, and the push plate and a limiting block achieve linear guiding through a connecting plate. According to the utility model, the maintenance efficiency is improved, the problem of sealing failure caused by vibration and pressure fluctuation in the emulsifying process is solved through self-adaptive compensation sealing of the leakage-proof mechanism, no leakage in the reaction process is ensured, the loss of raw materials is reduced, and the production stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of chemical production equipment technology, and in particular to a high-shear emulsification reactor for defoamer production. Background Technology

[0002] Defoamers, as important industrial auxiliaries, are widely used in many industries such as textiles, printing and dyeing, papermaking, and water treatment. In the production process of defoamers, various raw materials such as silicone oil, polyether, and emulsifiers are typically added to a reaction vessel and mixed and dispersed at high speed using a high-shear emulsifier to form a stable emulsion system. To ensure the quality of the finished defoamer, eliminate bubbles generated during emulsification, and prevent oxidation, a vacuum pump must be used to continuously degas the reactor.

[0003] However, in actual high-shear emulsification production processes, the high-speed rotation of the stirring blades inside the reactor causes violent turbulence of the liquid, accompanied by a large amount of foam and splashing droplets. Existing reactors often lack effective gas path protection measures when connected to a vacuum pump. This makes it easy for impurities, dust, and tiny droplets in the liquid to be drawn into the vacuum pump along with the airflow, causing pump oil contamination, blade wear, and even jamming, severely affecting the pumping efficiency and service life of the vacuum pump. Although some equipment is equipped with filters, existing filter structures are usually fixed and rigid, making disassembly, cleaning, or filter replacement cumbersome and requiring extended downtime, affecting production continuity. Therefore, a high-shear emulsification reactor for defoamer production is proposed to solve these problems. Utility Model Content

[0004] In view of the problem that the high-shear emulsification reactor for defoamer production in the prior art is prone to sucking in impurities of the feed liquid during the vacuuming process, which leads to wear and damage to the vacuum pump body, this utility model aims to provide a high-shear emulsification reactor for defoamer production with an improved structure that can effectively solve the above-mentioned problems.

[0005] This utility model provides a high-shear emulsification reactor for defoamer production, comprising: a base, a reaction vessel and a vacuum pump fixedly installed on the top of the base, a feed pipe fixedly installed inside the reaction vessel, a protective mechanism installed on the top of the base, and a leak-proof mechanism installed inside the feed pipe.

[0006] The protective mechanism includes an impurity collection box fixedly connected to the top of the base. A filter plate is installed inside the impurity collection box. A sliding rod is slidably connected through the box wall. A pull plate is fixedly connected to one end of the sliding rod outside the impurity collection box, and a locking plate is fixedly connected to the other end of the sliding rod inside the impurity collection box. A guide plate is fixedly connected inside the impurity collection box, and a reset assembly is installed on the outer surface of the sliding rod. The reset assembly includes a movable plate fixedly connected to the outer surface of the sliding rod and a spring sleeved on the outer surface of the sliding rod.

[0007] Furthermore, the sliding rod, the moving plate, the guide plate, and the spring are combined through dynamic sliding and elastic contact. The moving plate is slidably connected to the surface of the guide plate. Under the elastic force of the spring, the moving plate drives the sliding rod and the locking plate to move continuously towards the filter plate, so that the locking plate is stably locked into the filter plate groove.

[0008] The leak-proof mechanism includes an end cap rotatably connected inside the feed pipe. An installation groove is provided inside the end cap, and a sealing ring is embedded within the groove. A push plate is slidably connected inside the end cap, and a telescopic rod is fixedly connected to the surface of the push plate. A second spring is sleeved on the outer surface of the telescopic rod. Under the elastic force of the second spring, the push plate slides axially along the inner wall of the end cap, thereby continuously compressing the sealing ring to produce radial deformation, forming an adaptive compensation sealing structure.

[0009] Preferably, one end of the first spring abuts against the side wall of the movable plate, and the other end of the first spring abuts against the side wall of the guide plate. When the pull plate is pulled by a manual force to move the sliding rod, the sliding rod drives the movable plate to slide linearly along the surface of the guide plate and simultaneously squeezes the first spring to store energy, thereby realizing the quick unlocking of the filter plate and improving the convenience of disassembling and assembling the filter plate when cleaning the impurity collection box.

[0010] Preferably, the filter plate surface has a slot for the locking plate to engage, and there are two sliding rods symmetrically distributed about the center of the filter plate, each connected to a corresponding pull plate, locking plate, and reset assembly. This symmetrical multi-point locking structure ensures that the filter plate remains stable in its installation position even when subjected to high-speed airflow inside the impurity collection box, preventing filtration failure due to uneven stress causing gaps.

[0011] Preferably, a connecting plate is fixedly connected to the outer wall of the push plate, and a sliding groove is formed inside the connecting plate. A limiting block is fixedly connected inside the end cap, and the limiting block is slidably connected inside the sliding groove of the connecting plate. During the movement of the push plate, the connecting plate is guided along the limiting block. This structure limits the movement trajectory of the push plate, preventing it from deflecting or getting stuck during the compression of the sealing ring, and ensuring the uniformity of pressure transmission.

[0012] Preferably, one end of the second spring abuts against the side wall of the push plate, and the other end of the second spring abuts against the inner wall of the end cap. The two ends of the telescopic rod are respectively fixedly connected to the push plate and the inner wall of the end cap. The telescopic rod not only provides support and guidance for the second spring to prevent it from laterally buckling under pressure, but also limits the maximum range of movement of the push plate through its physical stroke.

[0013] Preferably, the vacuum pump inlet is connected to an impurity collection box via a pipe, and the impurity collection box inlet is connected to a reaction vessel via a pipe. The impurity collection box is located in the extraction air path between the vacuum pump and the reaction vessel. The impurity collection box acts as an airflow transfer chamber, using the filter plate to intercept liquid droplets, dust, and foam in the airflow, thus protecting the vacuum pump at its source.

[0014] Preferably, the outer diameter of the end cap is adapted to the inner diameter of the feed pipe, and the outer diameter of the sealing ring is larger than the outer diameter of the end cap and fits tightly against the inner wall of the feed pipe when pressed by the push plate. This interference fit connection allows the sealing ring to fit tightly against the feed pipe wall, and even when high-frequency vibration occurs during the emulsification process, it can achieve adaptive compensation through the continuous intervention of elasticity, maintaining a high degree of sealing at the connection.

[0015] Preferably, the contact surface between the moving plate and the guide plate is smoothed, and a sealing gasket is provided where the sliding rod passes through the wall of the impurity collection box. By reducing the coefficient of friction, the smoothness of the movement is improved, and the sealing gasket, in conjunction with this, prevents external air from leaking into the impurity collection box, thus ensuring the overall vacuum level of the device.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem in the prior art that impurities, foam and dust in the reaction vessel are easily sucked into the vacuum pump during the vacuum degassing process, which leads to wear, reduced precision or even damage to the pump's precision components. It achieves the technical effect of intercepting pollutants at the source, effectively protecting the internal structure of the vacuum pump, ensuring the stability of the vacuum device, and significantly extending the service life of the vacuum pump.

[0018] 2. This utility model solves the problem of complex fixing methods and time-consuming and labor-intensive disassembly and maintenance of filter components in the prior art, which leads to reduced production efficiency, by setting a quick disassembly and assembly mechanism consisting of a pull plate, a sliding rod, a locking plate and a spring reset assembly on the impurity collection box. It achieves the technical effect of quickly unlocking and replacing filter plates without the need for additional tools, greatly shortening equipment maintenance downtime, and improving the continuity of defoamer production.

[0019] 3. This utility model solves the problem in the prior art that the inlet seal is prone to wear or compression deformation under long-term high shear vibration and pressure fluctuation, resulting in sealing failure and leakage of liquid, by setting an anti-leakage mechanism inside the feed pipe end cap, which is continuously driven by a spring to push the sealing ring. In conjunction with the linear guide structure of the connecting plate and the limiting block, the mechanism solves the problem that the inlet seal is prone to wear or compression deformation under long-term high shear vibration and pressure fluctuation environment, resulting in sealing failure and leakage of liquid. It achieves the technical effect of automatically compensating for the wear gap of the sealing ring by the spring force, forcing the sealing ring to continuously expand radially and stick tightly to the pipe wall, preventing the sealing structure from deflecting and failing, ensuring zero leakage in the reaction process and reducing raw material loss. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a high-shear emulsification reactor for defoamer production proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the impurity collection box of a high-shear emulsification reactor for defoamer production proposed in this utility model.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the end cap structure of a high-shear emulsification reactor for defoamer production proposed in this utility model;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0025] Legend:

[0026] 1. Base; 2. Reaction vessel; 3. Vacuum pump; 4. Protective mechanism; 41. Impurity collection box; 42. Filter plate; 43. Sliding rod; 44. Pull plate; 45. Locking plate; 46. Guide plate; 47. Reset assembly; 471. Moving plate; 472. Spring one; 5. Feed pipe; 6. Leakage prevention mechanism; 61. End cap; 62. Sealing ring; 63. Push plate; 64. Connecting plate; 65. Limiting block; 66. Telescopic rod; 67. Spring two. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Reference Figures 1 to 5 This utility model provides a high-shear emulsification reactor for defoamer production, including a base 1, a reaction tank 2 and a vacuum pump 3 fixedly installed on the top of the base 1. The base 1 serves as a support platform for the entire equipment and is made of high-strength metal to ensure the stability of the equipment during operation. The reaction tank 2 is fixedly connected to the top of the base 1 by bolts and is used to perform high-speed shearing, mixing and emulsification of the defoamer raw materials contained inside. The vacuum pump 3 is fixedly installed on one side of the top of the base 1 and is used to reduce the internal air pressure of the reaction tank 2 through the air extraction pipe, thereby quickly removing air bubbles in the liquid and air in the reactor space generated during the emulsification process.

[0030] A protective mechanism 4 is also fixedly installed on the top of the base 1. The protective mechanism 4 is located between the reaction tank 2 and the vacuum pump 3. The protective mechanism 4 includes an impurity collection box 41 fixedly connected to the top of the base 1. The impurity collection box 41 serves as a carrier for airflow transfer and impurity interception. The air inlet of the vacuum pump 3 is connected to the impurity collection box 41 through a pipe. The air inlet of the impurity collection box 41 is connected to the top of the reaction tank 2 through a pipe, so that the impurity collection box 41 is connected in series in the air path between the vacuum pump 3 and the reaction tank 2. The impurity collection box 41 is used to filter the airflow drawn from the reaction tank 2, intercept the material liquid impurities and dust carried therein, and prevent impurities from entering the vacuum pump 3 and causing wear or damage to precision components.

[0031] The reaction vessel 2 is fixedly connected to a feed pipe 5, which serves as the channel for raw materials to enter the reaction vessel 2. An anti-leakage mechanism 6 is installed inside the feed pipe 5. The anti-leakage mechanism 6 includes an end cap 61 rotatably connected inside the feed pipe 5. The outer diameter of the end cap 61 is adapted to the inner diameter of the feed pipe 5. The end cap 61 is used to close or open the feed pipe 5, and achieves adaptive compensation sealing through the cooperation of internal components, effectively preventing the liquid from leaking from the connection between the end cap 61 and the feed pipe 5 due to pressure fluctuations generated during high-shear emulsification.

[0032] The protective mechanism 4 includes an impurity collection box 41 fixedly connected to the top of the base 1. A filter plate 42 is installed inside the impurity collection box 41. The filter plate 42 is the core filter element. It intercepts particulate matter and droplets carried in the airflow through the filter mesh set inside. The surface of the filter plate 42 is provided with a slot for the locking plate 45 to be inserted. The slot cooperates with the locking mechanism described later to realize the quick assembly and disassembly of the filter plate 42.

[0033] Meanwhile, a sliding rod 43 is slidably connected through the wall of the impurity collection box 41. A pull plate 44 is fixedly connected to one end of the sliding rod 43 outside the impurity collection box 41. The pull plate 44 serves as an operating handle, making it convenient for the operator to apply pulling force. A locking plate 45 is fixedly connected to one end of the sliding rod 43 inside the impurity collection box 41. The shape of the locking plate 45 is adapted to the groove on the surface of the filter plate 42. The filter plate 42 is limited and fixed by the insertion and engagement.

[0034] A guide plate 46 is fixedly connected inside the impurity collection box 41. The guide plate 46 serves as the support and guide reference for the sliding assembly. A reset assembly 47 is installed on the outer surface of the sliding rod 43. The reset assembly 47 includes a movable plate 471 fixedly connected to the outer surface of the sliding rod 43 and a spring 472 sleeved on the outer surface of the sliding rod 43. The movable plate 471 is slidably connected to the surface of the guide plate 46. The contact surface between the movable plate 471 and the guide plate 46 is smoothed to reduce frictional resistance.

[0035] In the assembled state, one end of spring 472 abuts against the side wall of moving plate 471, and the other end of spring 472 abuts against the side wall of guide plate 46. The elastic potential energy stored in spring 472 continuously pushes moving plate 471. Moving plate 471 drives sliding rod 43 and locking plate 45 to move closer to filter plate 42 and keep them locked in the groove of filter plate 42. This spring-reset snap-fit ​​connection structure ensures the stable installation of filter plate 42 during equipment operation. At the same time, when replacement is needed, it can be quickly unlocked by pulling pull plate 44.

[0036] As a preferred embodiment, the number of sliding rods 43 is set to two. The two sliding rods 43 are symmetrically distributed about the center of the filter plate 42 and are respectively connected to the corresponding pull plate 44, locking plate 45 and reset component 47. This symmetrical two-point fixing design can avoid the filter plate 42 from warping or shaking due to uneven force at a single point, thereby ensuring the reliability of the filtration effect.

[0037] As another preferred embodiment, to ensure reliable sealing of the feed pipe 5 under long-term use and pressure fluctuation conditions, please refer to... Figure 4 and Figure 5The feed pipe 5 is equipped with a leak-proof mechanism 6. The leak-proof mechanism 6 includes an end cap 61 rotatably connected to the inside of the feed pipe 5. The end cap 61 has an installation groove inside, and a sealing ring 62 is embedded in the installation groove. A push plate 63 is slidably connected inside the end cap 61. A telescopic rod 66 is fixedly connected to the surface of the push plate 63. A spring 67 is sleeved on the outer surface of the telescopic rod 66. The push plate 63 continuously compresses the sealing ring 62 under the elastic force of the spring 67. A connecting plate 64 is fixedly connected to the outer wall of the push plate 63. A sliding groove is opened inside the connecting plate 64. A limit block 65 is fixedly connected inside the end cap 61. The limit block 65 is slidably connected to the sliding groove of the connecting plate 64. The push plate 63 moves... When the connecting plate 64 slides linearly along the limiting block 65, this linear guiding fit ensures that the push plate 63 can always smoothly convert the axial thrust of the second spring 67 into a uniform radial extrusion force on the sealing ring 62. One end of the second spring 67 abuts against the side wall of the push plate 63, and the other end of the second spring 67 abuts against the inner wall of the end cover 61. The two ends of the telescopic rod 66 are fixedly connected to the push plate 63 and the inner wall of the end cover 61, respectively. The telescopic rod 66 supports the second spring 67 and restricts its lateral bending, while limiting the maximum stroke of the push plate 63. Under the extrusion state of the push plate 63, the outer diameter of the sealing ring 62 is larger than the outer diameter of the end cover 61 and is tightly attached to the inner wall of the feed pipe 5, achieving an interference fit seal.

[0038] The implementation principle of this embodiment is as follows: During the defoamer production process, the reaction tank 2 is started to shear and emulsify the raw materials, while the vacuum pump 3 is started to perform vacuum degassing treatment inside the reaction tank 2. At this time, the gas containing impurities inside the reaction tank 2 enters the impurity collection box 41 through the pipeline. When the gas passes through the filter plate 42, the dust and liquid impurities in it are intercepted by the filter plate 42 and left inside the impurity collection box 41. The purified air then enters the vacuum pump 3, thereby effectively preventing impurities from corroding the precision components inside the vacuum pump 3 and ensuring the operating accuracy and service life of the vacuum pump 3.

[0039] When filter plate 42 accumulates too many impurities and needs to be replaced or cleaned, the operator pulls the pull plate 44 outward. The pull plate 44 moves the sliding rod 43 outward from the impurity collection box 41. The sliding rod 43 moves the locking plate 45 fixed inside it synchronously, disengaging it from the slot on the surface of filter plate 42. During this process, the sliding rod 43 moves the moving plate 471 in the reset assembly 47 along the surface of the guide plate 46, compressing the spring 472 to store energy. Once the locking plate 45 is completely disengaged from filter plate 42, the old filter plate 42 can be removed and a new filter plate 42 can be inserted. Then, the pull plate 44 is released, and the spring 472 releases its elastic potential energy to push the moving plate 471 back to its original position. The moving plate 471 moves the sliding rod 43 in the opposite direction, causing the locking plate 45 to re-lock into the slot of the new filter plate 42, completing the quick fixing and replacement of filter plate 42.

[0040] With the feed pipe 5 closed, the anti-leakage mechanism 6 is continuously operational. Spring 67, using its own rebound force, continuously pushes the push plate 63 via the telescopic rod 66. The push plate 63, subjected to axial thrust, continuously compresses the sealing ring 62, forcing it to undergo radial expansion and deformation, thus tightly fitting against the inner wall of the feed pipe 5. When the sealing ring 62 experiences minor wear due to long-term use, or when pressure fluctuations within the reaction tank 2 cause changes in the gap, spring 67 automatically releases its potential energy to push the push plate 63 forward to compensate, ensuring the seal remains effective. During this process, the connecting plate 64 slides linearly along the limiting block 65, restricting the push plate 63 from deflecting and ensuring uniform transmission of the extrusion force, thereby effectively preventing leakage of the emulsion from the feed pipe 5 within the reaction tank 2.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-shear emulsification reactor for defoamer production, comprising a base (1) and a reaction tank (2) and a vacuum pump (3) fixedly installed on the top of the base (1), wherein a feed pipe (5) is fixedly installed inside the reaction tank (2); Its features are, The base (1) is equipped with a protective mechanism (4) on top, and the feed pipe (5) is equipped with a leak prevention mechanism (6). The protective mechanism (4) includes an impurity collection box (41) fixedly connected to the top of the base (1). The impurity collection box (41) is equipped with a filter plate (42). The impurity collection box (41) is slidably connected to the wall of the impurity collection box (41). The sliding rod (43) is fixedly connected to a pull plate (44) at one end of the sliding rod (43) outside the impurity collection box (41). The sliding rod (43) is fixedly connected to a locking plate (45) at one end of the sliding rod (43) inside the impurity collection box (41). The impurity collection box (41) is fixedly connected to a guide plate (46). The sliding rod (43) is equipped with a reset component (47) on its outer surface.

2. The high-shear emulsification reactor for defoamer production according to claim 1, characterized in that, The reset assembly (47) includes a movable plate (471) fixedly connected to the outer surface of the sliding rod (43) and a spring (472) sleeved on the outer surface of the sliding rod (43). The movable plate (471) is slidably connected to the surface of the guide plate (46). Under the elastic force of the spring (472), the movable plate (471) drives the sliding rod (43) and the locking plate (45) to be locked into the groove of the filter plate (42). One end of the spring (472) abuts against the side wall of the movable plate (471), and the other end of the spring (472) abuts against the side wall of the guide plate (46). When the pull plate (44) is pulled and moves, it drives the sliding rod (43) to move. The sliding rod (43) drives the movable plate (471) to slide along the guide plate (46) and squeeze the spring (472).

3. The high-shear emulsification reactor for defoamer production according to claim 1, characterized in that, The filter plate (42) has a slot on its surface for the locking plate (45) to be inserted into. There are two sliding rods (43), which are symmetrically distributed about the center of the filter plate (42) and are respectively connected to the pull plate (44), the locking plate (45) and the reset component (47).

4. The high-shear emulsification reactor for defoamer production according to claim 1, characterized in that, The anti-leakage mechanism (6) includes an end cap (61) rotatably connected to the inside of the feed pipe (5). The end cap (61) has an installation groove inside, and a sealing ring (62) is embedded in the installation groove. A push plate (63) is slidably connected inside the end cap (61). A telescopic rod (66) is fixedly connected to the surface of the push plate (63). A spring (67) is sleeved on the outer surface of the telescopic rod (66). The push plate (63) continuously squeezes the sealing ring (62) under the elastic force of the spring (67). A connecting plate (64) is fixedly connected to the outer wall of the push plate (63). A sliding groove is opened inside the connecting plate (64). A limiting block (65) is fixedly connected inside the end cap (61). The limiting block (65) is slidably connected inside the sliding groove of the connecting plate (64). When the push plate (63) moves, the connecting plate (64) slides linearly along the limiting block (65).

5. The high-shear emulsification reactor for defoamer production according to claim 4, characterized in that, One end of the second spring (67) abuts against the side wall of the push plate (63), and the other end of the second spring (67) abuts against the inner wall of the end cap (61). The two ends of the telescopic rod (66) are respectively fixedly connected to the push plate (63) and the inner wall of the end cap (61).

6. The high-shear emulsification reactor for defoamer production according to claim 1, characterized in that, The vacuum pump (3) is connected to the impurity collection box (41) via a pipe at its inlet end. The impurity collection box (41) is connected to the reaction vessel (2) via a pipe at its inlet end. The impurity collection box (41) is located in the gas path between the vacuum pump (3) and the reaction vessel (2).

7. The high-shear emulsification reactor for defoamer production according to claim 4, characterized in that, The outer diameter of the end cap (61) is adapted to the inner diameter of the feed pipe (5), and the outer diameter of the sealing ring (62) is larger than the outer diameter of the end cap (61) and closely adheres to the inner wall of the feed pipe (5) under the extrusion state of the push plate (63).

8. A high-shear emulsification reactor for defoamer production according to claim 2, characterized in that, The contact surface between the movable plate (471) and the guide plate (46) is smoothed, and a sealing gasket is provided at the point where the sliding rod (43) passes through the wall of the impurity collection box (41).

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