Atomization bin for foaming expansion microspheres
By employing a spiral airflow field and cyclone screening technology in the foaming device, the problems of slurry agglomeration and production waste in traditional foaming devices have been solved, achieving efficient, safe, continuous production and real-time quality inspection.
Patent Information
- Application Number
- CN202520086845.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Traditional foaming equipment suffers from uneven heating of the slurry, easy clumping, resulting in production waste and safety hazards. Furthermore, the production process is not economically viable and cannot achieve continuous production and real-time quality inspection.
Design an atomizing chamber that uses hot air to form a spiral airflow field in the inner cavity to disperse the slurry, and uses a cyclone sieve to screen particles of different densities to achieve continuous and automatic screening of the foaming process. Equipped with a cooling mechanism to prevent agglomeration.
It improves foaming efficiency, reduces raw material loss, enables continuous production and real-time quality inspection, and reduces production risks and environmental protection requirements.
Smart Images
Figure CN223697697U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of chemical equipment, in particular to a kind of atomization bin for foaming expanded microsphere. BACKGROUND
[0002] Expanded microsphere is a kind of high molecular polymer that uses thermoplastic polymer shell to wrap some liquid or solid core material with volatility, sensitivity or reactivity to form micro particles, with core-shell structure, which will expand when heated. Unfoamed expanded microsphere (wet material) has hard polymer shell at room temperature, and when heated, the polymer shell softens while the core material increases the internal pressure, and the volume of expanded microsphere will significantly increase. Once the expanded microsphere cools down, the polymer shell will maintain the expanded state, so the volume of the foamed expanded microsphere (dry material) will maintain the state when heated. Generally, the density of the foamed expanded microsphere will decrease by 80-150 times before foaming.
[0003] The traditional foaming device reactor has uneven heating of slurry in the kettle during foaming, which is easy to caking, and the dust accumulated during the foaming process may cause explosion. At the same time, according to the size of the reactor, there is a minimum production value for each production, which leads to poor economy of the production process. Once the quality of the expanded microsphere does not meet the standard due to some factors in the production process, there will be a lot of waste.
[0004] Patent CN217621796U discloses a kind of high polymer foaming material atomization bin and atomization system, the atomization bin body is equipped with feed inlet, hot air input, bottom is equipped with discharge port, the bottom end of the atomization bin body is conical, the side wall of the atomization bin body is equipped with cavity, cooling mechanism is equipped in the side wall cavity. The disadvantage of this device is that the density of the foamed expanded microsphere is small and easy to diffuse and float in the atomization bin without being output through the bottom discharge port, while the density of the unfoamed caking slurry is larger and is more likely to fall out from the bottom discharge port. This leads to waste of expanded microsphere slurry, and the wet material mixed in the dry material needs additional treatment. UTILITARIAN CONTENT
[0005] To solve the above technical problems, the utility model provides an atomization bin for foaming expanded microsphere, which can complete the screening of dry material and wet material at the same time during foaming of expanded microsphere, reduce the loss of raw materials during foaming process and the environmental protection post-treatment demand of finished product, and change the production process from intermittent production to continuous production, which not only reduces the danger of high temperature and high explosion, but also can produce small batches according to demand, and the product quality can be checked at any time during production.
[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0007] An atomizing bin for foaming expanded microspheres, characterized in that it comprises: an atomizing bin body; the atomizing bin body is of a closed structure and is provided with an inner cavity; a hot air inlet is arranged on the side wall of the atomizing bin body, the hot air inlet is in communication with the inner cavity of the atomizing bin body, and the extension direction of the hot air inlet is tangent to the inner wall of the atomizing bin body; the inner cavity of the atomizing bin body comprises a conical section and / or a straight cylinder section; the atomizing bin body is provided with a feeding port for the expanded microsphere slurry to enter the inner cavity of the atomizing bin body; and the top of the atomizing bin body is provided with a discharging port.
[0008] Preferably, the hot air inlet is located above the horizontal position of the feeding port, so that the expanded microsphere slurry enters the flow field range of the hot air cyclone after being sprayed out of the feeding port, and the foaming process is completed by the natural dispersion of the expanded microsphere slurry in the process of spirally descending along the flow field.
[0009] Preferably, the discharging port is a cylindrical flow guide cylinder extending downward from the top.
[0010] Preferably, the discharging port is provided with a jacket layer, and a cooling mechanism is arranged in the jacket layer. The cooling mechanism can adopt heat sinks, heat exchange fins, cooling pipes or other commonly used cooling devices in the field.
[0011] Preferably, guide vanes are arranged on the inner wall of the atomizing bin body.
[0012] Preferably, a local heating device is arranged at the bottom of the atomizing bin, and the heating form can adopt electric heating, oil bath heating, steam heating or other commonly used heating forms in the field.
[0013] Further preferably, the hot air inlet is in the shape of a volute. The volute-shaped hot air inlet makes the spiral hot air flow field formed by the hot air after entering the inner cavity more uniform, reducing turbulence.
[0014] Compared with the prior art, the present application has the following beneficial effects:
[0015] (1) The atomizing bin for foaming expanded microspheres utilizes the spiral air flow field formed by hot air in the inner cavity to disperse the slurry, reducing the large amount of dispersing agent that must be added when foaming expanded microspheres in a traditional reaction kettle.
[0016] (2) The cyclone formed by the hot air in the inner cavity of the atomizing bin can automatically screen particles of different densities, and the expanded microspheres that have completed foaming can escape from the discharging port along the air flow due to their smaller density, while the expanded microsphere slurry that has not completed foaming will not escape along the air flow due to its larger density, and will stay in the inner cavity to continue to be heated until the foaming is completed.
[0017] (3) Because the slurry input and the expansion microsphere escape after foaming are continuous, the process of foaming and expanding the microsphere by using the atomizing bin can be started and stopped at any time, the output can be accurately adjusted, and the product quality can be detected at any time. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, a brief introduction will be given to the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0019] Figure 1 It is a top view schematic diagram of the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application.
[0020] Figure 2 It is a sectional view schematic diagram of the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application in the direction of front view.
[0021] Figure 3 It is a sectional view schematic diagram of the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application in the direction of right view.
[0022] Figure 4 It is a bottom view schematic diagram of the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application.
[0023] Figure 5 It is a sectional view schematic diagram of the atomizing bin for foaming and expanding microspheres in the embodiment two of the present application in the direction of front view.
[0024] Figure 6 It is a sectional view schematic diagram of the atomizing bin for foaming and expanding microspheres in the embodiment two of the present application in the direction of right view.
[0025] Reference numerals in the drawings:
[0026] 1, atomizing bin body; 2, hot air input port; 3, feeding port; 4, discharging port; 5, local heating device; 11, straight cylinder section; 12, conical section; 31, nozzle; 41, cooling mechanism. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0028] Embodiment one
[0029] Figure 1 Figure 1 is a top view of the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application, Figure 2 Figure 2 is a cross-sectional view of the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application in the direction of the front view, Figure 3 Figure 3 is a cross-sectional view of the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application in the direction of the right view, Figure 4 Figure 4 is a bottom view of the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application. As shown in the figure, the atomizing bin for foaming and expanding microspheres in the embodiment one of the present application comprises: an atomizing bin body 1, which is a hollow closed structure and is provided with an inner cavity. Figures 1-4 The side wall of the atomizing bin body 1 is provided with a hot air input port 2, which is in communication with the inner cavity of the atomizing bin body 1. The hot air input port 2 is used to be connected with a blower and a heating device, and hot air is input into the inner cavity 1 of the atomizing bin through the blower, so as to heat the expanding microspheres in the atomizing bin body 1 and make the expanding microspheres foam.
[0030] The side wall of the atomizing bin body 1 is provided with a feeding port 3, which is in communication with the inner cavity of the atomizing bin body 1. The feeding port 3 of the atomizing bin body 1 is used to be connected with a feeding mechanism, and the feeding mechanism sends the expanding microsphere slurry from the feeding port 3 of the atomizing bin body 1 into the inner cavity of the atomizing bin body 1 and sprays it out through a spray head 31.
[0031] The inner cavity of the atomizing bin comprises a straight cylinder section and a conical section, and the conical section is in the shape of a cone with a large upper part and a small lower part. The atomized expanding microsphere slurry flows spirally downward along the side wall of the inner cavity following the hot air flow introduced from the hot air input port 2, and the expanding microspheres are gradually foamed in the flow. The expanding microspheres after foaming are extremely small in density, and are discharged through a discharge port 4 under the driving of the lift force formed by the hot air flow in the central region of the rotation of the inner cavity.
[0032]
[0033] From the above, the atomizing bin for foaming expanded microspheres of the embodiment can not have local high temperature by the hot air cyclone effect, the microspheres will not be bonded into blocks, and the microsphere foaming efficiency is high. Meanwhile, the dry material and wet material after foaming can be screened by the lift generated by the cyclone, avoiding waste of the slurry and subsequent environmental protection treatment of the unfoamed raw material.
[0034] Preferably, the atomizing bin for foaming expanded microspheres of the embodiment is provided with a jacket layer at the discharge port 4, and a cooling mechanism 41 is arranged in the jacket layer. The expanded microspheres after high-temperature foaming are cooled by the cooling mechanism in the jacket layer during the discharging process through the discharge port 4, so that the shell of the expanded microspheres is rapidly cooled and solidified, avoiding clumping.
[0035] Preferably, the atomizing bin for foaming expanded microspheres of the embodiment is provided with guide vanes on the inner wall of the atomizing bin body. The guide vanes are used to guide the flow direction of the hot air.
[0036] Preferably, the atomizing bin for foaming expanded microspheres of the embodiment is provided with a local heating device 5 at the bottom of the atomizing bin, which can supplement the heating of a small amount of residual unfoamed slurry accumulated at the bottom.
[0037] Further preferably, the atomizing bin for foaming expanded microspheres of the embodiment is provided with a volute-shaped hot air input port. The volute-shaped hot air input port has a better flow guide effect.
[0038] Embodiment Two
[0039] Embodiment Two is an improved scheme of Embodiment One. Figure 5 The figure is a cross-sectional view of the atomizing bin for foaming expanded microspheres in the direction of the front view of Embodiment Two of the utility model. Figure 6 The figure is a cross-sectional view of the atomizing bin for foaming expanded microspheres in the direction of the right view of Embodiment Two of the utility model. As shown in the figure, Figures 5-6 The atomizing bin for foaming expanded microspheres of the embodiment comprises an atomizing bin body 1, and the atomizing bin body 1 is a hollow closed structure and is provided with an inner cavity.
[0040] The side wall of the atomizing bin body 1 is provided with a hot air input port 2, and the hot air input port 2 is in communication with the inner cavity of the atomizing bin body 1. The hot air input port 2 is used to be connected with a blower and a heating device, and hot air is input into the inner cavity 1 of the atomizing bin through the blower, so as to heat the expanded microspheres in the atomizing bin body 1 and make the expanded microspheres foam.
[0041] The side wall of the atomizing chamber body 1 is provided with a feeding port 3 in communication with the inner cavity of the atomizing chamber body 1. The feeding port 3 of the atomizing chamber body 1 is used to be connected with a feeding mechanism, the feeding mechanism sends the expanded microsphere slurry from the feeding port 3 of the atomizing chamber body 1 into the inner cavity of the atomizing chamber body 1, and atomizes and sprays out through the spray head 31.
[0042] The inner cavity of the atomizing chamber is all in a conical section, and the conical section is in a conical shape with the upper part being large and the lower part being small. The atomized expanded microsphere slurry follows the hot air flow introduced from the hot air inlet 2 and spirally flows downward along the inner cavity side wall, and the expanded microsphere gradually foams under the heat, and the expanded microsphere with completed foaming has extremely small density and is discharged through the discharge port 4 under the lift of the hot air flow formed in the rotation center area of the inner cavity.
[0043] The atomizing chamber for foaming expanded microspheres can be used for foaming the common type expanded microspheres on the market, such as Expancel DET dry type expanded microspheres. The hot air inlet temperature is set to 120-200 DEG C, the outlet speed of the slurry spray head is 10-60 m / s, and the outflow speed of the discharge port is 0.5-1.0 m / s.
[0044] Finally, it should be noted that: in the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.
[0045] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, can also be integrated; can be mechanical connection, can also be electrical connection, can also be communication connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the communication or interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
Claims
1. An atomizing chamber for foamed expanded microspheres, characterized by, The application relates to an atomizing chamber body. The atomizing chamber body is of a closed structure and is provided with an inner cavity. The sidewall of the atomizing chamber body is provided with a hot air input port which is in communication with the inner cavity of the atomizing chamber body and the extension direction of the hot air input port is tangent to the inner wall of the atomizing chamber body. The inner cavity of the atomizing chamber body comprises a conical section and / or a straight cylinder section. The atomizing chamber body is provided with a feeding port for the expanded microsphere slurry to enter the inner cavity of the atomizing chamber body. The top of the atomizing chamber body is provided with a discharging port. The hot air input port is located above the horizontal position of the feeding port.
2. The atomizing cartridge for foamed expanded microspheres of claim 1, wherein, The hot air input port and the feeding port are located in the straight cylinder section of the inner cavity.
3. The atomizing cartridge for foamed expanded microspheres of claim 2, wherein, The discharging port extends from the top to a cylindrical flow guide cylinder.
4. The atomizing canister for foamed expanded microspheres of claim 1, wherein, The discharging port is provided with a jacket layer, and the jacket layer is provided with a cooling mechanism.
5. The atomizing canister for foamed expanded microspheres of claim 1, wherein, The inner wall of the atomizing chamber body is provided with flow guide vanes.
6. The atomizing canister for foamed expanded microspheres of claim 1, wherein, The bottom of the atomizing chamber body is provided with a local heating device.
7. The atomizing canister for foamed expanded microspheres of claim 1, wherein, The hot air input port is in the shape of a volute.
8. The atomizing cartridge for foamed expanded microspheres of any one of claims 1 to 7, wherein,