CN209985393U - Nanometer metal oxide dispersion preparation facilities - Google Patents

Nanometer metal oxide dispersion preparation facilities Download PDF

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Publication number
CN209985393U
CN209985393U CN201920421843.7U CN201920421843U CN209985393U CN 209985393 U CN209985393 U CN 209985393U CN 201920421843 U CN201920421843 U CN 201920421843U CN 209985393 U CN209985393 U CN 209985393U
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metal oxide
oxide dispersion
dispersion liquid
sand mill
reaction tower
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CN201920421843.7U
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Chinese (zh)
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张海涛
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Abstract

A device for preparing nano metal oxide dispersion liquid comprises a closed reaction tower, a crucible for containing reaction liquid, a microwave heater, a tail gas exhaust mechanism, a powder conveying pipe, a sand mill and a reaction kettle, wherein the microwave heater is arranged in the closed reaction tower, the crucible is arranged above the microwave heater, the tail gas exhaust mechanism is communicated with the closed reaction tower, the closed reaction tower is communicated with the sand mill through the powder conveying pipe, and the sand mill is communicated with the reaction kettle. The utility model is energy-saving and environment-friendly; the whole process from the generation of powder to the generation of dispersion liquid in the production process is sealed, so that impurities can be prevented from being mixed; by adopting the composite dispersion, the nano metal oxide dispersion liquid with narrow particle size distribution and good repeatability can be efficiently prepared, the continuous production can be realized, and the production efficiency can be obviously improved.

Description

Nanometer metal oxide dispersion preparation facilities
Technical Field
The utility model relates to a nano-material technical field, in particular to nanometer metallic oxide dispersion preparation facilities.
Background
The nanoscale dispersion liquid has small size and large specific surface area, shows excellent performances in the aspects of dissolution rate, viscosity, transparency, effectiveness, stability and the like, is widely applied to various industries such as medicine, food, machining, construction, printing and dyeing, petrochemical industry, daily chemical industry and the like, and has huge demand.
The preparation device of the existing nano-grade dispersion liquid has the defects of large particle size, wide distribution and the like of products, and the preparation process is discontinuous, so that the quality uniformity among different batches is difficult to control, the preparation amount is small, and the requirement of mass production is difficult to meet.
Disclosure of Invention
The utility model aims to solve the technical problem that the above-mentioned defect that prior art exists is overcome, a nanometer metallic oxide dispersion preparation facilities is provided.
The utility model provides a technical scheme that its technical problem adopted is, a nanometer metallic oxide dispersion preparation facilities, including airtight reaction tower, the crucible that holds reaction liquid, microwave heater, tail gas discharge mechanism, powder transport pipe, sand mill and reation kettle, be equipped with microwave heater in the airtight reaction tower, the microwave heater top is equipped with the crucible, tail gas discharge mechanism and airtight reaction tower intercommunication, airtight reaction tower passes through powder transport pipe and sand mill intercommunication, sand mill and reation kettle intercommunication.
Preferably, airtight reaction tower is equipped with feed inlet, air inlet and collecting port, the feed inlet is used for changing the crucible, the air inlet is used for letting in high-purity nitrogen gas, oxygen air current, the collecting port is the infundibulate, and bottom and powder transport pipe intercommunication.
Preferably, the tail gas exhaust mechanism is provided with an exhaust pipe and an air exhaust mechanism, one end of the exhaust pipe is connected with the air exhaust mechanism, the other end of the exhaust pipe is communicated with the top end of the closed reaction tower, and a nano filter screen is arranged at the communicated position.
Preferably, a vent is arranged at the joint of the powder conveying pipe and the material collecting port, and a high-speed nitrogen gas flow is introduced into the vent and used for blowing oxide powder generated by the reaction and collected by the material collecting port into the sand mill.
Preferably, a negative pressure mechanism is arranged in the powder conveying pipe and used for generating negative pressure and pumping oxide powder generated by reaction and collected by the material collecting port into the sand mill.
Preferably, the top end of the sand mill is provided with a first feeding metering pump.
Preferably, a second feeding metering pump is arranged at the communication position of the sand mill and the reaction kettle.
Preferably, reation kettle includes heater, agitator motor and stirring rake, the reation kettle bottom that the heater was located, agitator motor locates reation kettle's top, and connects the stirring rake of locating in reation kettle.
Preferably, two ultrasonic mechanisms are symmetrically arranged on the side surface of the reaction kettle.
Preferably, the bottom end of the reaction kettle is provided with a discharge metering pump.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the sealed reaction tower is heated by microwaves, so that the heating source is ensured not to carry impurities, the microwave heating energy is prevented from being heated unevenly, non-renewable energy sources are saved, the heating efficiency is high, the cost is low, and the environment is protected without pollution;
2. the whole process from the generation of powder to the generation of dispersion liquid in the production process is sealed, so that impurities can be prevented from being mixed; the quality of the nano metal oxide dispersion liquid is ensured;
3. the composite dispersion of the nano material is carried out by adopting a sand mill, a reaction kettle for stirring and ultrasonic waves, so that the nano metal oxide dispersion liquid with narrow particle size distribution and good repeatability can be efficiently prepared, the continuous and mass production can be realized, and the production efficiency can be obviously improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Description of reference numerals: 1-a closed reaction tower, 101-a feed inlet, 102-a gas inlet 103-a material collecting port; 2-a crucible; 3-a microwave heater; 4-tail gas treatment mechanism, 401-exhaust pipe; 5-powder conveying pipe, 501-vent, 502-negative pressure mechanism; 6-sand mill, 601-first feed metering pump; 7-a reaction kettle, 701-a second feeding metering pump, 702-a heater, 703-a stirring motor, 704-a stirring paddle, 705-an ultrasonic mechanism and 706-a discharging metering pump.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them.
The technical solution provided by the embodiments of the present invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment includes a closed reaction tower 1, a crucible 2 for containing a solution, a microwave heater 3, a tail gas treatment mechanism 4, a powder transport pipe 5, a sand mill 6 and a reaction kettle 7, the microwave heater 3 is disposed in the closed reaction tower 1, the crucible 2 is disposed above the microwave heater 3, the tail gas treatment mechanism 4 is communicated with the closed reaction tower 1, the closed reaction tower 1 is communicated with the sand mill 6 through the powder transport pipe 5, and the sand mill 6 is communicated with the reaction kettle 7.
Specifically, the closed reaction tower 1 can be in a cylindrical shape, the lining is made of high-temperature-resistant, corrosion-resistant and non-breakable zirconia ceramic or silicon carbide ceramic, a feed inlet 101 and an air inlet 102 are formed in the closed reaction tower 1, the feed inlet 101 is flush with the crucible 2 for replacing the crucible 2, and the crucible 2 is a silicon carbide crucible; the position of the gas inlet 102 is not higher than that of the crucible 2, more specifically, in the embodiment, two gas inlets 102 are provided, and high-purity nitrogen and high-purity oxygen or a mixed gas flow of high-purity nitrogen and oxygen are respectively introduced to ensure that enough oxygen participates in the reaction in the closed reaction tower 1; the number of the air inlets 102 may also be three, four or more, and is not limited to the above examples.
Specifically, the exhaust gas treatment mechanism 4 is provided with an air extraction mechanism, the air extraction mechanism is connected with one end of an exhaust pipe 401, the other end of the exhaust pipe 401 is communicated with the top end of the closed reaction tower 1, and more specifically, after the crucible 2 is placed in the exhaust gas treatment mechanism, the air in the closed reaction tower 1 is extracted through the exhaust pipe 401 to exhaust impurities; after the reaction starts, the exhaust mechanism exhausts the tail gas in the closed reaction tower 1 in real time through the exhaust pipe 401, and processes and absorbs the tail gas, and a nano filter screen is arranged at the communication position of the exhaust pipe 401 and the closed reaction tower 1 to perform gas-solid phase separation on the tail gas.
Specifically, the bottom end of the closed reaction tower 1 is provided with a material collecting port 103, the material collecting port 103 is funnel-shaped, and the bottom end is communicated with a powder conveying pipe 5; more specifically, in the embodiment, the powder conveying pipe 5 is a plastic pipeline, and the powder is conveyed in the powder conveying pipe 5 without metal contact and metal impurities; a vent 501 is arranged at the joint of the powder conveying pipe 5 and the material collecting port 103, a negative pressure mechanism 502 is arranged in the powder conveying pipe 5, a high-speed nitrogen flow is introduced into the vent 501 to be matched with the negative pressure mechanism 502, and the oxide powder collected by the material collecting port 103 is conveyed into the sand mill 6; as a modification of this embodiment, the powder transport pipe 5 may be provided with only the vent 501 for blowing the oxide powder generated by the reaction collected by the material collecting port 103 into the sand mill 6; or only the negative pressure mechanism 502 is arranged to pump the oxide powder collected by the material collecting port 103 into the sand mill 6.
Specifically, the top end of the sand mill 6 is provided with a first feeding metering pump 601, and the first feeding metering pump 601 pumps quantitative water and organic solution to be primarily mixed and dispersed with the powder, and then the mixture is pumped into the reaction kettle 7 through a second feeding metering pump 701.
Specifically, in this embodiment, the reaction kettle 7 includes a heater 702, a stirring motor 703, a stirring paddle 704, two ultrasonic mechanisms 705 and a discharge metering pump 706, the heater 702 heats the solution in the reaction kettle 7, the stirring motor 703 drives the nanoscale shearing stirring paddle 704 to stir the solution, the two ultrasonic mechanisms 705 emit ultrasonic waves, the stirring paddle 704 and the two ultrasonic mechanisms 705 cooperate to perform composite dispersion on the nanomaterial, so that the powder is dispersed more uniformly, and the dispersed nano metal oxide dispersion liquid is pumped out, collected and packaged by the discharge metering pump 706 according to a required amount; the ultrasonic mechanism 705 may also be three, four or more, and is not limited to the above examples.
The utility model discloses a theory of operation:
dissolving metal salts and organic matters into hot water to form a high-concentration solution, wherein the solution is contained in a crucible 2 and is placed into a closed reaction tower 1 from a feeding hole 101, and after air in the closed reaction tower 1 is pumped out by a tail gas treatment mechanism 4, high-purity nitrogen and oxygen are introduced into an air inlet 102 to prepare for heating.
The microwave heater 3 heats the solution in the crucible 2, the water in the solution is gradually evaporated, when the solution is heated to 600 ℃, the reactant is violently combusted to release a large amount of heat, so that the oxide generated by the reaction is sprayed out of the crucible to form powder, and the tail gas treatment mechanism 4 extracts the reaction tail gas of the closed reaction tower 1 in real time and treats and absorbs the tail gas.
Powder is deposited at the bottom of the closed reaction tower 1 under the action of gravity, the powder is collected by the material collecting port 103 and enters the powder conveying pipe 5, and high-pressure nitrogen introduced into a vent 501 on the powder conveying pipe 5 is matched with the negative pressure mechanism 502 to convey the powder into the sand mill 6.
Quantitative water and organic matter solution are pumped into the first feeding metering pump 601 to be primarily mixed and dispersed with the powder in the sand mill 6; and the solution is pumped into the reaction kettle 7 through the second feeding metering pump 701, the heater 702 heats the solution in the reaction kettle 7, the stirring motor 703 drives the nanoscale shearing stirring paddle 704 to stir the solution, the two ultrasonic mechanisms 705 emit ultrasonic waves, the stirring paddle 704 and the two ultrasonic mechanisms 705 are matched to perform composite dispersion on the nano material, so that the powder is dispersed more uniformly, and the dispersed nano metal oxide dispersion liquid is pumped out by the discharging metering pump 706 according to the required amount, collected and packaged.
The utility model adopts microwave heating, the heating process is energy-saving, efficient and environment-friendly; the whole process from powder generation to dispersion liquid generation in the production process is sealed, so that impurities can be prevented from being mixed; the composite dispersion of the nano-materials is carried out by adopting the sand mill 6, the reaction kettle 7 and the ultrasonic mechanism 705, so that the nano-metal oxide dispersion liquid with narrow particle size distribution and good repeatability can be efficiently prepared, the continuous and mass production can be realized, and the production efficiency can be obviously improved.
The above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A nanometer metal oxide dispersion preparation facilities which characterized in that: including airtight reaction tower (1), hold crucible (2), microwave heater (3), tail gas discharge mechanism (4), powder transport pipe (5), sand mill (6) and reation kettle (7) of reaction liquid, be equipped with microwave heater (3) in airtight reaction tower (1), microwave heater (3) top is equipped with crucible (2), tail gas discharge mechanism (4) and airtight reaction tower (1) intercommunication, airtight reaction tower (1) is through powder transport pipe (5) and sand mill (6) intercommunication, sand mill (6) and reation kettle (7) intercommunication.
2. The nano metal oxide dispersion liquid preparation apparatus according to claim 1, characterized in that: the closed reaction tower (1) is provided with a feeding hole (101), an air inlet (102) and a material collecting hole (103), wherein the feeding hole (101) is used for replacing the crucible (2), the air inlet (102) is used for introducing high-purity nitrogen and oxygen airflow, the material collecting hole (103) is funnel-shaped, and the bottom end of the material collecting hole is communicated with the powder conveying pipe (5).
3. The nano metal oxide dispersion liquid preparation apparatus according to claim 2, characterized in that: the connection part of the powder conveying pipe (5) and the material collecting port (103) is provided with a vent (501), and a high-speed nitrogen flow is introduced into the vent (501) and is used for blowing oxide powder generated by the reaction and collected by the material collecting port (103) into the sand mill (6).
4. The nano metal oxide dispersion liquid preparation apparatus according to claim 2 or 3, characterized in that: the powder conveying pipe (5) is internally provided with a negative pressure mechanism (502), the negative pressure mechanism (502) is used for generating negative pressure, and oxide powder generated by reaction and collected by the material collecting port (103) is pumped into the sand mill (6).
5. The nano metal oxide dispersion liquid preparation apparatus according to claim 1, characterized in that: the tail gas exhaust mechanism (4) is provided with an exhaust pipe (401) and an air exhaust mechanism, one end of the exhaust pipe (401) is connected with the air exhaust mechanism, the other end of the exhaust pipe (401) is communicated with the top end of the closed reaction tower (1), and a nano filter screen is arranged at the communicated position.
6. The nano metal oxide dispersion liquid preparation apparatus according to claim 1, characterized in that: the top end of the sand mill (6) is provided with a first feeding metering pump (601).
7. The nano metal oxide dispersion liquid preparation apparatus according to claim 1, characterized in that: and a second feeding metering pump (701) is arranged at the communication position of the sand mill (6) and the reaction kettle (7).
8. The nano metal oxide dispersion liquid preparation apparatus according to claim 1, characterized in that: reation kettle (7) are including heater (702), agitator motor (703) and stirring rake (704), reation kettle (7) bottom that heater (702) were located, the top of reation kettle (7) is located in agitator motor (703), and connects stirring rake (704) of locating in reation kettle (7).
9. The nano metal oxide dispersion liquid preparation apparatus according to claim 1, characterized in that: two ultrasonic mechanisms (705) are symmetrically arranged on the side surface of the reaction kettle (7).
10. The nano metal oxide dispersion liquid preparation apparatus according to claim 1, characterized in that: and a discharging metering pump (706) is arranged at the bottom end of the reaction kettle (7).
CN201920421843.7U 2019-03-30 2019-03-30 Nanometer metal oxide dispersion preparation facilities Expired - Fee Related CN209985393U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920421843.7U CN209985393U (en) 2019-03-30 2019-03-30 Nanometer metal oxide dispersion preparation facilities

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Application Number Priority Date Filing Date Title
CN201920421843.7U CN209985393U (en) 2019-03-30 2019-03-30 Nanometer metal oxide dispersion preparation facilities

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CN209985393U true CN209985393U (en) 2020-01-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111774010A (en) * 2020-07-30 2020-10-16 安徽科幂机械科技有限公司 High-temperature high-pressure photocatalytic reaction device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111774010A (en) * 2020-07-30 2020-10-16 安徽科幂机械科技有限公司 High-temperature high-pressure photocatalytic reaction device
CN111774010B (en) * 2020-07-30 2022-07-12 安徽科幂仪器有限公司 High-temperature high-pressure photocatalytic reaction device

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Granted publication date: 20200124

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