Anti-hardening emulsion storage tank

Abstract

The utility model discloses an anti-hardening emulsion storage tank, which relates to the field of emulsion production equipment and comprises a tank body, a feed port is arranged on the tank body, a discharge port is arranged on the lower portion of the tank body, a stirring mechanism and a discharge port anti-hardening mechanism are arranged in the tank body, and a stirring paddle at the tail end of the stirring mechanism is positioned above the discharge port and arranged around the discharge port. The discharge port hardening prevention mechanism comprises a liquid inlet pipe, a circulating pipe and a liquid outlet pipe, one end of the liquid inlet pipe extends into the tank body from the outside of the tank body, the other end of the liquid inlet pipe is communicated to the liquid outlet pipe through the circulating pipe, the other end of the liquid outlet pipe extends out of the tank body, and the circulating pipe is circumferentially arranged around the stirring paddle at the tail end. The anti-hardening emulsion storage tank has the effect that the emulsion can be effectively prevented from being hardened in the storage process, especially at the discharge port.

Description

Technical Field

[0001] The utility model relates to the field of emulsion production equipment, and more particularly to an anti-hardening emulsion storage tank. Background Art

[0002] During the long-term storage of emulsion systems, such as acrylic emulsions, a significant technical challenge often arises: emulsion hardening. This phenomenon is primarily attributed to the complex physical and chemical changes within the emulsion, including the high solids content, cross-linking between latex particles, the presence of high molecular weight polymers, and excessive polymerization. These factors interact to cause the emulsion to gradually harden over time within the storage tank. The hardened emulsion exhibits significant changes in its physical and chemical properties, severely compromising its product quality and significantly increasing its removal from the storage vessel and subsequent transport, negatively impacting production efficiency and cost control.

[0003] To address this issue, prior art attempts have attempted to incorporate stirring structures or temperature control devices within storage tanks. These devices, through continuous stirring and / or heating, prevent the emulsion from hardening and maintain its uniformity and stability. For example, a Chinese utility model patent, CN216806657U, discloses an acrylic emulsion storage tank comprising a tank body, a stirring device, and a temperature control device. These stirring and temperature control devices agitate and heat the acrylic emulsion within the storage chamber, preventing sedimentation caused by prolonged storage.

[0004] However, storage tanks that rely solely on a stirring mechanism have significant limitations in preventing hardening. While a single stirring method can slow the hardening process of the emulsion to a certain extent, the anti-hardening effect is not ideal. Even when combined with a thermostat, these thermostats are typically located on the four side walls of the tank, resulting in insufficient heating of the emulsion within the tank, especially near the discharge port. In this case, the emulsion at the discharge port may be more susceptible to hardening due to insufficient temperature, resulting in discharge blockage, which seriously affects the discharge process and production efficiency. Further improvement and optimization are still needed. Utility Model Content

[0005] In response to this problem in practical application, the purpose of this utility model is to propose an anti-hardening emulsion storage tank, the specific solution is as follows:

[0006] A hardening-resistant emulsion storage tank comprises a tank body, wherein the tank body is provided with a feed port on the top and a discharge port on the bottom, a stirring mechanism and a discharge port anti-hardening mechanism are arranged inside the tank body, the terminal stirring paddle of the stirring mechanism is located above the discharge port and is arranged around the discharge port, the discharge port anti-hardening mechanism comprises an inlet pipe, a circulation pipe and a discharge pipe, one end of the inlet pipe extends from outside the tank body into the tank body, and the other end is connected to the discharge pipe through the circulation pipe, and the other end of the discharge pipe extends out of the tank body, wherein the circulation pipe is arranged circumferentially around the terminal stirring paddle.

[0007] Furthermore, the stirring mechanism includes a drive motor, a transmission shaft, a coupling, a stirring shaft, a front stirring paddle, and a terminal stirring paddle. The drive motor is connected to the transmission shaft, and the transmission shaft is connected to the stirring shaft via a coupling. The stirring shaft extends vertically into the interior of the tank body, and several front stirring paddles are evenly arranged along the axial direction of the stirring shaft, and a terminal stirring shaft is provided at the end of the stirring shaft.

[0008] Furthermore, the front end stirring paddle is composed of a center plate and a front end stirring plate. The center plate is coaxially fixed to the stirring shaft. The front end stirring plates are evenly arranged around the center plate and are arranged perpendicular to the center plate.

[0009] Furthermore, the end stirring paddle includes a central shaft and an end stirring plate. The central shaft is coaxially fixed with the stirring shaft, the end stirring plate is evenly arranged around the central shaft, and the end stirring plate is inclined with the central plate. The bottom surface of the end stirring plate is in adaptive contact with the bottom wall of the tank body.

[0010] Furthermore, the inclination angle of the end stirring plate is 30-60°.

[0011] Furthermore, the end stirring paddle also includes a heat conducting plate, one end of which is rotatably connected to the end stirring plate, and the other end is freely mounted on the outer wall of the circulation tube.

[0012] Furthermore, the circulation pipe is an annular structure, and the circulation pipe is close to the vertical middle position of the end stirring plate.

[0013] Furthermore, it also includes a surrounding anti-hardening mechanism, which includes a circulation channel opened around the inside of the side wall of the tank body, with an inlet opened at the head end and an outlet opened at the end end.

[0014] Furthermore, the circulation channel is coiled in a serpentine shape inside the side wall of the tank.

[0015] Furthermore, a temperature sensor is provided on the tank body.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The anti-hardening emulsion storage tank of the present invention effectively prevents emulsion hardening during storage. The stirring mechanism ensures uniform mixing of the emulsion within the tank, while the outlet anti-hardening mechanism and surrounding anti-hardening mechanisms further prevent the emulsion from hardening at the outlet and on the tank sidewalls. The provision of a temperature sensor enables timely adjustment based on the actual temperature of the emulsion, ensuring effective anti-hardening measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall external schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 It is a front view of an embodiment of the present utility model;

[0020] Figure 3 For this utility model Figure 2 Middle AA section view;

[0021] Figure 4 For this utility model Figure 2 Middle BB cross-section;

[0022] Figure 5 A schematic diagram showing the structure of the front-end stirring paddle and the end-end stirring paddle of the present invention;

[0023] Figure 6 It is a schematic diagram showing the structure of the end stirring paddle of the present invention.

[0024] Figure numerals: 1. Tank body; 2. Feed port; 3. Discharge port; 4. Stirring mechanism; 41. Drive motor; 42. Transmission shaft; 43. Coupling; 44. Stirring shaft; 45. Front stirring paddle; 451. Center plate; 452. Front stirring plate; 46. End stirring paddle; 461. Center shaft; 462. End stirring plate; 463. Heat conduction plate; 5. Discharge port anti-hardening mechanism; 51. Liquid inlet pipe; 52. Circulation pipe; 53. Liquid discharge pipe; 6. All around anti-hardening mechanism; 61. Circulation channel; 62. Inlet; 63. Outlet; 7. Temperature sensor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] like Figure 1-3As shown, a hardening-resistant emulsion storage tank includes a tank body 1 having an inlet 2 at the top and a discharge port 3 at the bottom. Inside the tank body 1 are a stirring mechanism 4, a discharge port anti-hardening mechanism 5, and a peripheral anti-hardening mechanism 6. The tank body 1 is provided with a temperature sensor 7 for monitoring the real-time temperature within the tank body 1. The tank body 1 also includes a controller (not shown), such as a PLC controller, which is electrically connected to the stirring mechanism 4, the discharge port anti-hardening mechanism 5, the peripheral anti-hardening mechanism 6, and the temperature sensor 7 to automatically control the operation of each mechanism. The tank body 1 is preferably made of stainless steel.

[0027] Specifically, if Figure 3 As shown, the stirring mechanism 4 includes a drive motor 41, a transmission shaft 42, a coupling 43, a stirring shaft 44, a front stirring paddle 45, and a terminal stirring paddle 46. The drive motor 41 is vertically fixed to the center of the top of the tank body 1. The output shaft of the drive motor 41 is connected to one end of the transmission shaft 42. The other end of the transmission shaft 42 extends into the tank body 1 and is connected to the stirring shaft 44 through the coupling 43. The connection between the drive shaft 42 and the stirring shaft 44 is achieved through the coupling 43, which facilitates the replacement of the stirring shaft 44. The stirring shaft 44 is inside the tank body 1 and extends vertically downward. Three front stirring paddles 45 are evenly arranged along the axial direction of the stirring shaft 44. The end of the stirring shaft 44 is provided with a terminal stirring shaft 44.

[0028] Combine Figure 5 The front stirring paddle 45 is used to stir the emulsion around the inside of the tank body 1. It consists of a center plate 451 and a front stirring plate 452. The center plate 451 is fixed coaxially with the stirring shaft 44 and can be fixed by welding or bolts. The front stirring plates 452 are evenly arranged around the center plate 451. Preferably, there are four front stirring plates 452, and the front stirring plates 452 are arranged perpendicular to the center plate 451. The vertical arrangement can facilitate the stirring of the emulsion around. Preferably, the length of the front stirring plate 452 is not greater than the inner diameter of the tank body 1. Figure 3 As shown, the length of the front stirring plate 452 is smaller than the inner diameter of the tank body 1. As the length of the front stirring plate 452 increases, the stirring range of the front stirring paddle 45 in the horizontal direction becomes larger.

[0029] Combine Figure 6The end stirring paddle 46 is used to stir the emulsion at the discharge port 3, and includes a central shaft 461 and an end stirring plate 462. The central shaft 461 is fixed coaxially with the stirring shaft 44, and can also be fixed by welding or bolts. The end stirring plates 462 are evenly arranged around the central shaft 461. Preferably, there are three end stirring plates 462, and the end stirring plates 462 are arranged obliquely to the central plate 451. The inclination angle of the end stirring plates 462 is 30-60°. Preferably, the inclination angle of the end stirring plates 462 is 45°; the bottom surface of the end stirring plate 462 is in adaptive contact with the inner bottom wall of the tank body 1. In one possible embodiment, the inner bottom wall of the tank body 1 is a curved surface structure, and the bottom surface of the end stirring plate 462 is also set to a curved surface end surface structure adapted thereto, so that the bottom surface of the end stirring plate 462 can just rotate and scrape on the inner bottom wall of the tank body 1.

[0030] like Figure 3 、 Figure 5 、 Figure 6 As shown, the end stirring paddle 46 of the stirring mechanism 4 is located above the discharge port 3 and is arranged around the discharge port 3. More specifically, the end stirring plates 462 on the end stirring paddle 46 are arranged around the discharge port 3.

[0031] like Figure 3 、 Figure 4 Figure 6 As shown, the anti-hardening mechanism 5 of the discharge port includes a liquid inlet pipe 51, a circulation pipe 52 and a liquid outlet pipe 53. One end of the liquid inlet pipe 51 extends from the outside of the tank body 1 to the inside of the tank body 1, and the other end is connected to the liquid outlet pipe 53 through the circulation pipe 52. The other end of the liquid outlet pipe 53 extends out of the tank body 1, wherein the circulation pipe 52 is circumferentially arranged around the terminal stirring paddle 46. The liquid inlet pipe 51 is connected to the outside of the discharge pipe with a hot water circulation device. It should be noted that the hot water circulation device is a prior art, and this application does not involve any improvement thereto, and will not be described in detail here. The hot water circulation device introduces hot water from the liquid inlet pipe 51 into the circulation pipe 52, and finally outputs it through the liquid outlet pipe 53. When the hot water passes through the circulation pipe 52, the emulsion around it is subjected to anti-hardening treatment, and since the circulation pipe 52 is circumferentially arranged around the terminal stirring paddle 46, it can cooperate with the stirring of the terminal stirring paddle 46 to heat the emulsion around the discharge port 3, so as to achieve anti-hardening of the emulsion at the discharge port 3.

[0032] The circulation pipe 52 is annular in structure and is located near the vertical middle of the end stirring plate 462. The purpose is to achieve comprehensive and uniform anti-hardening treatment of the emulsion around the discharge port 3.

[0033] In addition, see Figure 6The end stirring paddle 46 also includes a heat conducting plate 463, one end of which is rotatably connected to the end stirring plate 462, and the other end is freely mounted on the outer tube wall of the circulation pipe 52. The heat conducting plate 463 can be rotatably connected to the end stirring plate 462 by bolts, and the heat conducting plate 463 can swing up and down. The heat conducting plate 463 is preferably made of a heat-conducting material, such as copper or aluminum. When the end stirring paddle 46 rotates and stirs, the heat conducting plate 463 rotates with the rotation of the end stirring plate 462, and one end thereof is freely mounted on the circulation pipe 52, and can swing up and down during the process. Since the heat conducting plate 463 is made of a heat-conducting material, the heat on the circulation pipe 52 can be quickly transferred through the heat conducting plate 463, thereby enhancing the heating of the emulsion around the discharge port 3 and enhancing the anti-hardening treatment effect of the discharge port 3.

[0034] Back to Figure 3 The anti-hardening mechanism 6 includes a circulation channel 61 extending around the side wall of the tank body 1. The circulation channel 61 has an inlet 62 at its head end and an outlet 63 at its tail end. The circulation channel 61 is serpentine-shaped and winds around the side wall of the tank body 1. Similarly, the inlet 62 and outlet 63 on the anti-hardening mechanism 6 are externally connected to a hot water circulation device. Hot water is introduced into the circulation channel 61 through the inlet 62 and discharged through the outlet 63. Since the circulation channel 61 is serpentine-shaped and winds around the side wall of the tank body 1, the emulsion around the tank body 1 can be heated, thereby achieving anti-hardening treatment of the emulsion around the tank body 1.

[0035] There are preferably two temperature sensors 7. Figure 3 A temperature sensor 7 is provided on the upper part of the tank body 1, and another temperature sensor 7 is provided near the discharge port 3 of the tank body 1. The two temperature sensors 7 are used to monitor the temperature of the upper and lower parts of the tank body 1 respectively, so as to comprehensively control the temperature inside the tank body 1.

[0036] In addition, the bottom of the tank body 1 is provided with supporting legs (not shown in the figure) for supporting the tank body 1 so as to ensure that the discharge port 3 has a certain discharge space.

[0037] The specific implementation principle of the utility model is as follows: the emulsion enters the tank body 1 through the feed port 2 for storage, is stirred and homogenized by the stirring mechanism 4, and cooperates with the discharge port anti-hardening mechanism 5 and the surrounding anti-hardening mechanisms 6 to achieve comprehensive anti-hardening of the emulsion. When the emulsion is discharged from the discharge port 3, the anti-hardening treatment will prevent the emulsion from being difficult to discharge or blocked due to hardening, thereby improving work efficiency.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An anti-hardening emulsion storage tank, characterized in that: It includes a tank body, which is provided with a feed port on the top and a discharge port on the bottom. The tank body is provided with a stirring mechanism and a discharge port anti-hardening mechanism. The end stirring paddle of the stirring mechanism is located above the discharge port and is arranged around the discharge port. The discharge port anti-hardening mechanism includes an inlet pipe, a circulation pipe and a discharge pipe. One end of the inlet pipe extends from outside the tank body into the tank body, and the other end is connected to the discharge pipe through the circulation pipe. The other end of the discharge pipe extends out of the tank body, wherein the circulation pipe is circumferentially arranged around the end stirring paddle.

2. The anti-hardening emulsion storage tank according to claim 1, characterized in that: The stirring mechanism includes a drive motor, a transmission shaft, a coupling, a stirring shaft, a front stirring paddle, and a terminal stirring paddle. The drive motor is connected to the transmission shaft, and the transmission shaft is connected to the stirring shaft via a coupling. The stirring shaft extends vertically into the interior of the tank body. Several front stirring paddles are evenly arranged along the axial direction of the stirring shaft, and a terminal stirring shaft is provided at the end of the stirring shaft.

3. The anti-hardening emulsion storage tank according to claim 2, characterized in that: The front end stirring paddle is composed of a center plate and a front end stirring plate. The center plate is fixed coaxially with the stirring shaft. The front end stirring plates are evenly arranged around the center plate and are arranged perpendicular to the center plate.

4. The anti-hardening emulsion storage tank according to claim 2, characterized in that: The end stirring paddle includes a central shaft and an end stirring plate. The central shaft is coaxially fixed with the stirring shaft. The end stirring plate is evenly arranged around the central shaft. The end stirring plate and the central plate are inclined. The bottom surface of the end stirring plate is in adaptive contact with the bottom wall of the tank body.

5. The anti-hardening emulsion storage tank according to claim 4, characterized in that: The inclination angle of the end stirring plate is 30-60°.

6. The anti-hardening emulsion storage tank according to claim 4, characterized in that: The end stirring paddle further comprises a heat conducting plate, one end of which is rotatably connected to the end stirring plate, and the other end of which is freely mounted on the outer wall of the circulation tube.

7. The anti-hardening emulsion storage tank according to claim 1, characterized in that: The circulation pipe is an annular structure, and the circulation pipe is close to the vertical middle position of the end stirring plate.

8. The anti-hardening emulsion storage tank according to claim 1, characterized in that: It also includes a surrounding anti-hardening mechanism, which includes a circulation channel opened around the inside of the side wall of the tank body, with an inlet opened at the head end and an outlet opened at the end.

9. The anti-hardening emulsion storage tank according to claim 8, characterized in that: The circulation channel is coiled in a serpentine shape inside the side wall of the tank body.

10. The anti-hardening emulsion storage tank according to claim 1, characterized in that: A temperature sensor is provided on the tank body.

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