Coating vibrated fluidized bed for preparing composite material hollow spheres

Abstract

The utility model belongs to the technical field of composite material preparation equipment, and particularly discloses a coating vibration fluidized bed for preparing composite material hollow spheres, which comprises a supporting base and a fluidized bed shell, a plurality of groups of vibration springs are arranged at the top of the supporting base, and supporting columns are arranged at the tops of the vibration springs. The top of the supporting column is connected with a bottom plate of the fluidized bed, the fluidized bed shell is fixed to the bottom plate, at least one vibration motor is installed at the bottom of the bottom plate, a fan is installed on one side of the fluidized bed shell and fixed to the supporting base, and an air inlet pipe is installed on the fan and connected with the fluidized bed shell. Due to the powder fluidization function of the coating vibrated fluidized bed, beads can be in uniform contact with fiber powder, a composite material layer is coated more uniformly, compared with roller preparation, the condition that a single-time coating shell layer is thin due to the fact that resin is scratched and scratched in the coating process is reduced is improved, and the coating efficiency of the fiber composite shell layer is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite material preparation equipment, and in particular relates to a coating vibrating fluidized bed for preparing composite material hollow balls. Background Art

[0002] The three-phase composite solid buoyancy material is composed of three phases: matrix resin, hollow glass microspheres and cavities. It achieves the purpose of reducing density and reducing costs by adding gas phase components on the basis of the two-phase composite solid buoyancy material. Adding polymer fillers such as expanded polystyrene beads and epoxy resin beads can effectively reduce the density of the composite material. However, the compressive strength of these polymer hollow spheres is low. In order to improve the mechanical properties of the material, it is necessary to form a composite shell on the core of the polymer filler to reduce the material density while ensuring its effective strength.

[0003] At present, the coating of fiber-reinforced composite hollow balls mostly uses the "rolling ball" method, which is to spray resin or fiber in a drum to complete the coating of the composite shell. It is easy to have uneven spraying, which affects the product quality. In addition, the spraying device of the resin or fiber material is easy to be blocked, and workers need to clean it regularly. Compared with the "rolling ball" method in the drum, the use of fluidized bed technology can spray materials more evenly and is more conducive to coating. However, the current fluidized bed cannot solve the problem that the beads coated with resin are prone to sticking to each other and cannot be granulated separately, which affects the subsequent coating, and requires additional manual turning, which is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a coating vibrating fluidized bed for preparing composite hollow spheres.

[0005] To achieve the above purpose, the technical solution adopted by the utility model to solve its technical problems is: a coating vibrating fluidized bed for preparing composite hollow balls, comprising a supporting base and a fluidized bed shell, a plurality of groups of vibration springs are arranged on the top of the supporting base, a support column is arranged on the top of the vibration spring, the top of the support column is connected to the bottom plate of the fluidized bed, the fluidized bed shell is fixed on the bottom plate, at least one vibration motor is installed on the bottom of the bottom plate, a fan is installed on one side of the fluidized bed shell, the fan is fixed on the supporting base, an air inlet pipe is installed on the fan, and the air inlet pipe is connected to one side of the fluidized bed shell.

[0006] In a preferred embodiment of the present invention, a wind chamber, a microporous plate and a silo are sequentially arranged in the fluidized bed shell from bottom to top.

[0007] Further preferably, air diversion pipes are installed in parallel in the air chamber.

[0008] In a preferred embodiment of the present invention, the air inlet pipe enters the wind chamber from a lower middle position on one side of the fluidized bed shell and is connected to the air diversion pipe.

[0009] In a preferred embodiment of the present invention, a top cover is provided on the top of the fluidized bed shell, and the top cover is closed when not in use to prevent other impurities from falling in.

[0010] In a preferred embodiment of the utility model, extension plates or inward baffles perpendicular to the top of the side plates can be installed around the fluidized bed shell to prevent the fiber powder placed therein from spilling out when the vibrating fluidized bed is started, thereby reducing material waste.

[0011] Compared with the background technology, this technical solution has the following advantages:

[0012] 1. The powder fluidization function of the coating vibrating fluidized bed of the utility model enables the beads to contact the fiber powder evenly, and the composite material layer is coated more uniformly. Compared with the preparation by the roller, the situation of a thin single coating shell layer caused by the resin being scratched during coating is improved, and the coating efficiency of the fiber composite shell layer is higher;

[0013] 2. The beads coated with resin in the coating vibrating fluidized bed of the utility model can be dispersed by the fluidized bed vibration treatment without the need for additional manual inspection or turning. At the same time, the vibration can reduce the agglomeration of fiber powder and improve the fluidization quality;

[0014] 3. The coating vibrating fluidized bed of the utility model is easier to clean after production, the production operation process is simple, and the production efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of the vibrating fluidized bed of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the vibrating fluidized bed of the utility model;

[0018] In the figure: 1-support base; 2-fluidized bed shell; 3-vibration spring; 4-support column; 5-bottom plate; 6-vibration motor; 7-wind chamber; 8-air diverter pipe; 9-fan; 10-intake pipe; 11-silo; 12-microporous plate; 13-top cover. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the accompanying drawings and embodiments. The implementation method can have different forms and should not be understood as being limited to the description set forth herein. The same reference numerals in the text always represent the same elements, and similar reference numerals represent similar elements.

[0020] like Figure 1 As shown, the utility model is a coating vibrating fluidized bed for manufacturing composite hollow balls, comprising a supporting base 1 and a fluidized bed shell 2, wherein four groups of vibration springs 3 are arranged on the top of the supporting base 1, and a supporting column 4 is arranged on the top of each group of vibration springs 3, and the top of the supporting column 4 is connected to the bottom plate 5 of the fluidized bed, the fluidized bed shell 2 is fixed on the bottom plate 5, and a vibration motor 6 is fixedly installed on the bottom of the bottom plate 5, and the vibration motor 6 is in direct contact with the bottom plate 5, and a fan 9 is installed on one side of the fluidized bed shell 2, and the fan 9 is fixed on the supporting base 1, and an air intake pipe 10 is installed on the fan 9, and the air intake pipe 10 is connected to one side of the fluidized bed shell 2.

[0021] Refer to the internal structure diagram of the vibrating fluidized bed Figure 2 The fluidized bed shell 2 is provided with a wind chamber 7, a microporous plate 12 and a silo 11 from bottom to top, an air diversion pipe 8 is installed in parallel in the wind chamber 7, and the air inlet pipe 10 enters the wind chamber 7 from the middle lower position of one side of the fluidized bed shell 2 and is connected to the air diversion pipe 8. A top cover 13 is provided on the top of the fluidized bed shell 2, and the top cover 13 is closed when not in use to prevent other impurities from falling in.

[0022] By adopting the above technical solution, when coating the composite hollow sphere shell, the fluidized bed vibration motor 6 and the fan 9 are turned on. When the vibration motor 6 is started, the bottom plate 5 is vibrated, and the fiber powder in the silo 11 is also vibrated; the fan 9 is started to allow the external air to enter the air chamber 7 through the air inlet pipe 10, and then the introduced air is evenly distributed through the air diversion pipe 8. The air passes through the microporous plate 12 at the bottom of the silo 11 to fully fluidize the fiber powder. The worker pours the beads coated with resin into the silo 11. Under the action of vibration, the beads that stick to each other due to the surface resin are dispersed, and the fiber powder is evenly coated on the surface of the beads under the action of vibration and fluidization.

[0023] The above-described embodiments are only for illustrating the effects of the present invention, and are not intended to limit the present invention. Any replacements and improvements made by those skilled in the art without departing from the technical solution of the present invention should fall within the protection scope of the present invention.

Claims

1. A coating vibrating fluidized bed for preparing composite hollow spheres, comprising a supporting base and a fluidized bed shell, characterized in that: A plurality of groups of vibration springs are arranged on the top of the support base, a support column is arranged on the top of the vibration spring, the top of the support column is connected to the bottom plate of the fluidized bed, the fluidized bed shell is fixed on the bottom plate, at least one vibration motor is installed at the bottom of the bottom plate, a fan is installed on one side of the fluidized bed shell, the fan is fixed on the support base, an air inlet pipe is installed on the fan, and the air inlet pipe is connected to one side of the fluidized bed shell.

2. The vibrating fluidized bed according to claim 1, characterized in that The fluidized bed shell is provided with an air chamber, a microporous plate and a silo in sequence from bottom to top.

3. The vibrating fluidized bed according to claim 2, characterized in that Air diversion pipes are installed in parallel in the air chamber.

4. The vibrating fluidized bed according to claim 1, characterized in that The air inlet pipe enters the wind chamber from a lower middle position on one side of the fluidized bed shell and is connected to the air diversion pipe.

5. The vibrating fluidized bed according to claim 1, characterized in that A top cover is provided on the top of the fluidized bed shell.

6. The vibrating fluidized bed according to claim 1, characterized in that The fluidized bed shell is provided with extension plates or baffles arranged perpendicular to the top of the side plates and facing inwards, around the four sides.

Images