CN215049810U

CN215049810U - Preparation facilities of organosilicon miropowder

Info

Publication number: CN215049810U
Application number: CN202120672761.7U
Authority: CN
Inventors: 赵天宝; 吴德洋; 雷霆
Original assignee: CHENGDU SILIKE TECHNOLOGY CO LTD
Current assignee: CHENGDU SILIKE TECHNOLOGY CO LTD
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-12-07
Anticipated expiration: 2031-04-01

Abstract

The utility model relates to the technical field of organic silicon preparation, and discloses an organic silicon micro powder preparation device, which comprises a batching chamber, a reaction chamber and a drying chamber which are connected in sequence, wherein a temporary storage chamber is arranged between the reaction chamber and the drying chamber; the inside of drying chamber disposes floated air current stoving subassembly and adopts the preparation facilities of this application, simple structure does benefit to industrial production, and this device can solve and adopt traditional screw rod to extrude the mode through the mode at the surface coating polysiloxane of silica, siloxane cladding difficulty, the inhomogeneous problem of cladding that cause.

Description

Preparation facilities of organosilicon miropowder

Technical Field

The utility model relates to an organosilicon preparation technical field particularly, relates to a preparation facilities of organosilicon miropowder.

Background

Organosilicon, i.e., organosilicon compounds, are compounds which contain Si-C bonds and have at least one organic group directly bonded to the silicon atom, and compounds in which organic groups are bonded to the silicon atom via oxygen, sulfur, nitrogen, or the like are also conventionally used as organosilicon compounds. Among them, the polysiloxane having a siloxane bond (-Si-O-Si-) as a skeleton is the most abundant, most studied and most widely used class of organosilicon compounds, and accounts for about 90% or more of the total amount.

Currently, polysiloxane is coated on the surface of inorganic nanoparticles to improve the flexibility of the nanoparticles, and also improve the dispersibility and compatibility of the obtained coating in a polymer matrix material. However, the current coating is mostly prepared by siloxane and silicon dioxide through extrusion granulation molding, and the processing mode has the problems of uneven siloxane dispersion, difficult structure control and poor product performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a preparation facilities of organosilicon miropowder for in solving current organosilicon miropowder, the cladding nature of siloxane is poor, and causes the product to produce the not good problem of property ability.

The embodiment of the utility model is realized like this:

an organic silicon micro powder preparation device comprises a batching chamber, a reaction chamber and a drying chamber which are connected in sequence, wherein a temporary storage chamber is arranged between the reaction chamber and the drying chamber; and a suspension type airflow drying assembly is arranged in the drying chamber.

The utility model has the advantages that:

the batching room is used for placing siloxane, siloxane's viscosity is low, easily the cladding is on silica's surface, the reaction chamber is used as siloxane and silica's reaction vessel, the room of keeping in is used for temporarily depositing preparation result organic silicon miropowder, the drying chamber is used for cooling off organic silicon miropowder, floated air current stoving subassembly passes through air current stoving organic silicon miropowder, moreover, the steam generator is simple in structure, do benefit to the industrial production, and this device is through the mode at silica's surface cladding polysiloxane, can solve and adopt traditional screw rod to extrude the mode, the siloxane cladding difficulty that causes, the inhomogeneous problem of cladding.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic structural view of an apparatus for producing fine silicone powder in the example;

fig. 2 is a schematic structural view of the drying chamber in fig. 1 in an enlarged state.

Reference numerals:

100-batching chamber, 110-diaphragm pump, 120-damping machine, 200-reaction chamber, 211-short stirring blade, 222-long stirring blade, 300-temporary storage chamber, 400-drying chamber, 410-filter plate, 421-normal temperature airflow pipe, 422-heating airflow pipe, 423-filter layer and 430-powder collecting cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

< example >

As shown in fig. 1 to 2, the embodiment provides an apparatus for preparing organic silicon micropowder, comprising a batching chamber 100, a reaction chamber 200 and a drying chamber 400 connected in sequence, wherein a temporary storage chamber 300 is arranged between the reaction chamber 200 and the drying chamber 400; the drying chamber 400 is internally provided with a suspension type airflow drying assembly.

The batching chamber 100 is used for placing siloxane, the viscosity of the siloxane is low, the siloxane is easy to coat on the surface of silicon dioxide, the reaction chamber 200 is used as a reaction container for the siloxane and the silicon dioxide, the temporary storage chamber 300 is used for temporarily storing the prepared product of the organic silicon micro powder, the drying chamber 400 is used for cooling the organic silicon micro powder, the suspended airflow drying assembly dries the organic silicon micro powder through airflow, the structure is simple, the industrial production is facilitated, and the device can solve the problems that the traditional screw extrusion mode is adopted, the siloxane coating is difficult and the coating is not uniform through the mode of coating the polysiloxane on the surface of the silicon dioxide.

In this embodiment, the silica is modified by a silane coupling agent before being added into the reaction chamber 200.

In this embodiment, the suspension type airflow drying assembly includes a filter plate 410 and an airflow output pipe set, the filter plate 410 and the airflow output pipe set are disposed on the inner side wall of the drying chamber 400, and the feeding port of the drying chamber 400 is disposed between the filter plate 410 and the airflow output pipe set. The filter plate 410 is used for filtering fine micro powder in the organic silicon micro powder, and the aperture of the filter plate 410 is smaller than that of the organic silicon micro powder, so as to prevent the organic silicon micro powder from passing through the holes of the filter plate 410. The airflow output pipe group is used for providing high-speed airflow to enable the organic silicon micro powder to be suspended, and the filter plate 410 is used for avoiding blocking the organic silicon micro powder and facilitating separation of fine powder mixed in the organic silicon micro powder. The organic silicon micro powder is dried in an air flow mode, the drying efficiency is high, the energy consumption is low, and the impurity removal effect is good.

In this embodiment, the airflow output tube group includes a normal temperature airflow tube 421 and a heating airflow tube 422, and the normal temperature airflow tube 421 and the heating airflow tube 422 are alternately disposed on the inner sidewall of the drying chamber 400. In order to further improve the drying effect of the organic silicon micro powder, two groups of airflow pipes are arranged. The normal temperature airflow pipe 421 is used for suspending the organic silicon micro powder, and after the organic silicon micro powder is suspended, the organic silicon micro powder can be quickly dried by opening the heating airflow pipe 422, and meanwhile, residual solvents and small molecular substances thereof in the organic silicon micro powder can be removed. And after the organic silicon micro powder is dried, closing the heating airflow pipe 422.

In this embodiment, the filtering layer 423 is sleeved on both the orifice of the normal temperature airflow pipe 421 and the orifice of the heating airflow pipe 422. The filter layer 423 can prevent dust from entering the airflow pipe and prevent the airflow pipe from being blocked.

In this embodiment, a powder collecting cover 430 is disposed on a side of the drying chamber 400 close to the filter plate 410, and the powder collecting cover 430 is connected to a suction pump (the suction pump is not shown in the figure). The air pump is used for providing power to remove the fine powder accumulated in the powder collecting cover 430, so that the purity of the organic silicon micro powder is further improved.

In this embodiment, the inner side wall of the temporary storage chamber 300 is provided with a screw conveyor assembly, and the forward end of the screw conveyor assembly is disposed near the inlet end of the drying chamber 400. The spiral conveying assembly is convenient for conveying the organic silicon micro powder in batches, and the problem of difficulty in drying caused by conveying a large amount of organic silicon micro powder at one time can be avoided. Through the spiral conveying assembly, a certain amount of organic silicon micro powder is conveyed in batches, so that the airflow strength can be conveniently regulated and controlled by the suspended airflow assembly, and the organic silicon micro powder is efficiently dried. The spiral conveying component is a conventional spiral conveying rod, and the spiral conveying rod is driven by a driving motor.

In this embodiment, the ingredient chamber 100 is connected to the reaction chamber 200 through a transfer pipe, the transfer pipe is provided with a diaphragm pump 110 and a damper 120, and the diaphragm pump 110 is disposed near the ingredient chamber 100. The batching chamber 100 is opened with a first feeding port and a second feeding port.

In this embodiment, the inner bottom of the reaction chamber 200 is arc-shaped, the stirring rod is disposed in the reaction chamber 200, and the short stirring blade 221 is disposed at one end of the stirring rod close to the inner bottom of the reaction chamber 200. The bottom of the reaction chamber 200 is arc-shaped, so that incomplete reaction caused by small amount of the reaction chamber is avoided, and the treatment efficiency of the reaction chamber 200 is improved. The stirring rod is provided with a long stirring blade 222 near the middle-upper portion of the reaction chamber 200.

In this embodiment, the reaction chamber 200 is provided with a material inlet and a silicon dioxide inlet.

In this embodiment, the outer surface of the reaction chamber 200 is provided with a shell, so that a jacket layer is formed between the reaction chamber 200 and the shell, and the jacket layer is filled with a heat-conducting liquid. The heat transfer liquid is used to heat the reaction chamber 200, so that the temperature of the reaction chamber 200 can be controlled at a high degree. The heat conducting liquid is heat conducting oil or heat conducting water.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The device for preparing the organic silicon micro powder is characterized by comprising a batching chamber, a reaction chamber and a drying chamber which are connected in sequence, wherein a temporary storage chamber is arranged between the reaction chamber and the drying chamber; and a suspension type airflow drying assembly is arranged in the drying chamber.

2. The apparatus for producing fine silicone powder according to claim 1, wherein the suspension type air flow drying module comprises a filter plate and an air flow outlet pipe group, the filter plate and the air flow outlet pipe group are disposed opposite to each other on an inner side wall of the drying chamber, and a feed port of the drying chamber is disposed between the filter plate and the air flow outlet pipe group.

3. The apparatus for producing fine silicone powder according to claim 2, wherein the group of gas flow outlet pipes includes a normal temperature gas flow pipe and a heating gas flow pipe, and the normal temperature gas flow pipe and the heating gas flow pipe are alternately disposed on an inner side wall of the drying chamber.

4. The apparatus for producing an organic silicon fine powder according to claim 3, wherein a filter layer is provided on both the orifice of the normal temperature gas flow pipe and the orifice of the heating gas flow pipe.

5. The apparatus for producing an organic silicon fine powder according to claim 2, wherein a powder collecting hood is disposed on a side of the drying chamber adjacent to the filter plate, and the powder collecting hood is connected to an air suction pump.

6. The apparatus for producing fine silicone powder according to claim 1 or 2, wherein a screw conveyor assembly is provided on an inner side wall of the temporary storage chamber, and an advancing end of the screw conveyor assembly is provided near an inlet end of the drying chamber.

7. The apparatus for producing an organic silicon fine powder according to claim 1, wherein the batching chamber is connected to the reaction chamber through a transfer pipe, and the transfer pipe is provided with a diaphragm pump and a damper.

8. The apparatus for producing a fine silicone powder according to claim 1 or 7, wherein the inner bottom of the reaction chamber is provided in an arc shape, the reaction chamber is provided with a stirring rod, and one end of the stirring rod near the inner bottom of the reaction chamber is provided with a short stirring blade.

9. The apparatus for producing an organic silicon fine powder according to claim 1, wherein the reaction chamber is provided with a compounding inlet and a silica inlet.

10. The apparatus for producing an organic silicon fine powder according to claim 1 or 9, wherein a shell is provided on an outer surface of the reaction chamber, so that a jacket layer is formed between the reaction chamber and the shell, and the jacket layer is filled with a heat conductive liquid.