CN214059928U - Microwave urea hydrolyzation ammonia production device - Google Patents
Microwave urea hydrolyzation ammonia production device Download PDFInfo
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- CN214059928U CN214059928U CN202022474281.8U CN202022474281U CN214059928U CN 214059928 U CN214059928 U CN 214059928U CN 202022474281 U CN202022474281 U CN 202022474281U CN 214059928 U CN214059928 U CN 214059928U
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Abstract
The utility model provides a microwave urea system ammonia device of hydrolysising belongs to ammonia preparation technical field, and this microwave urea system ammonia device of hydrolysising includes: urea microwave heater, hydrolysis module and pipeline; wherein, the urea microwave heater is connected with the hydrolysis module through the pipeline. That is to say, the utility model provides a microwave urea system ammonia device of hydrolysising only needs the pyrolysis product that acquires urea through urea microwave heater, get into the hydrolysis treatment back in the module with the pyrolysis product via the pipeline entering hydrolysis again, can obtain the ammonia that accords with the demand, not only simple structure easily realizes, the treatment effeciency is high, small, with low costs, moreover safe and reliable, the energy consumption is low, economic benefits is good, thereby the preparation efficiency of ammonia has been improved greatly, also can make whole microwave urea system ammonia device of hydrolysising can stable work for a long time, and do not produce the secondary crystallization.
Description
Technical Field
The utility model belongs to the technical field of the ammonia preparation, a but not limited to microwave urea hydrolyzation system ammonia device is related to.
Background
It is known that ammonia gas is an inorganic substance, colorless, and has a strong pungent odor, but it can also be used for producing liquid nitrogen, ammonia water, nitric acid, ammonium salts, amines, and the like. Therefore, the attention on how to prepare ammonia gas meeting the human needs is increasing.
The existing ammonia gas preparation device comprises a fluidized bed reactor, a preheating chamber and a reaction chamber, wherein the preheating chamber heats granular inorganic salt, and an atomizing nozzle arranged in the reaction chamber enables the granular inorganic salt to form a fluidized bed layer and to react with an ammonium chloride aqueous solution in the reaction chamber to generate ammonia gas.
However, in the existing ammonia gas preparation device, the granular inorganic salt is required to form a fluidized bed layer and is contacted with the ammonium chloride aqueous solution to prepare the ammonia gas, so that the preparation efficiency of the ammonia gas is not high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a microwave urea system ammonia device of hydrolysising to the not enough of in-process existence of preparation ammonia among the above-mentioned current ammonia preparation facilities to when needing granular inorganic salt to form fluidization bed and contact with ammonium chloride aqueous solution among the solution current ammonia preparation facilities, could prepare out the ammonia and the ammonia preparation efficiency problem that leads to is not high.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
the embodiment of the utility model provides a microwave urea hydrolyzation system ammonia device, include: urea microwave heater, hydrolysis module and pipeline; wherein, the urea microwave heater is connected with the hydrolysis module through the pipeline.
Optionally, the pipeline includes inlayer and ectonexine, the inlayer is anticorrosive material, the ectonexine is the metal material.
Optionally, the urea microwave heater includes: the microwave heating device comprises a heating cavity, a heat insulation layer, a wave absorbing layer, a first microwave source and urea; the microwave absorbing layer is arranged on the heat insulating layer, the heating cavity is arranged on the microwave absorbing layer, the urea is arranged in the heating cavity, and the first microwave source is arranged outside the heating cavity.
Optionally, the inner wall of the heating cavity is made of a metal material.
Optionally, the first microwave sources are multiple in number and arranged on the top outer wall of the heating cavity in an array manner.
Optionally, the hydrolysis module comprises: the second microwave source, the hydrolysis cavity, the gas inlet and the gas outlet; the second microwave source is arranged outside the hydrolysis cavity, and the air outlet and the air inlet are respectively arranged at two ends of the hydrolysis cavity.
Optionally, the number of the second microwave sources is multiple and the second microwave sources are arranged on the outer side wall of the hydrolysis cavity in an array manner.
Optionally, the pipeline is used for conveying the product in the urea microwave heater to the hydrolysis module.
Optionally, the air inlet is used for conveying high-temperature water vapor into the hydrolysis cavity; and the gas outlet is used for discharging the ammonia gas obtained after the hydrolysis treatment.
Optionally, the heat insulating layer includes a heat insulating material, and the wave absorbing layer includes a microwave absorbing material.
The utility model has the advantages that: a microwave urea hydrolysis ammonia production device comprises: urea microwave heater, hydrolysis module and pipeline; wherein, the urea microwave heater is connected with the hydrolysis module through the pipeline. That is to say, the utility model provides a microwave urea system ammonia device of hydrolysising only needs the pyrolysis product that acquires urea through urea microwave heater, get into the hydrolysis treatment back in the module with the pyrolysis product via the pipeline entering hydrolysis again, can obtain the ammonia that accords with the demand, not only simple structure easily realizes, the treatment effeciency is high, small, with low costs, moreover safe and reliable, the energy consumption is low, economic benefits is good, thereby the preparation efficiency of ammonia has been improved greatly, also can make whole microwave urea system ammonia device of hydrolysising can stable work for a long time, and do not produce the secondary crystallization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a microwave urea hydrolysis ammonia production device according to an embodiment of the present invention.
Icon: 1-urea microwave heater, 11-heating cavity, 12-heat insulating layer, 13-wave absorbing layer, 14-first microwave source, 15-urea, 2-pipeline, 3-hydrolysis module, 31-second microwave source, 32-hydrolysis cavity, 33-air inlet and 34-air outlet.
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 of the present invention, all other embodiments obtained by a person of ordinary skill 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Here, the related terms in the present invention are explained:
the microwave is an electric wave with a frequency of 300 megahertz to 300 gigahertz, and water molecules in the heated medium material are polar molecules. Under the action of a rapidly changing high-frequency point magnetic field, the polarity orientation of the magnetic field changes along with the change of an external electric field. The effect of mutual friction motion of molecules is caused, at the moment, the field energy of the microwave field is converted into heat energy in the medium, so that the temperature of the material is raised, and a series of physical and chemical processes such as thermalization, puffing and the like are generated to achieve the aim of microwave heating.
Urea: also called carbonamide (carbamide), the chemical formula is CH4N2O, and an organic compound consisting of carbon, nitrogen, oxygen and hydrogen is a white crystal. Can react with acid to form salt. Has hydrolysis effect. Can carry out condensation reaction at high temperature to generate biuret, triuret and cyanuric acid. Heating to 160 deg.C to decompose, generating ammonia gas and changing into isocyanic acid. Since this substance is contained in human urine, urea is named. Urea contains 46% nitrogen (N), which is the highest nitrogen content in solid nitrogen fertilizers.
Fig. 1 is a schematic view of a microwave urea hydrolysis ammonia production device according to an embodiment of the present invention. The following describes in detail the microwave urea hydrolysis ammonia production device provided in the embodiment of the present invention with reference to fig. 1.
Fig. 1 is a schematic view of a microwave urea hydrolysis ammonia production device provided by an embodiment of the present invention, as shown in fig. 1, the microwave urea hydrolysis ammonia production device includes: the device comprises a urea microwave heater 1, a heating cavity 11, a heat insulating layer 12, a wave absorbing layer 13, a first microwave source 14, urea 15, a pipeline 2, a hydrolysis module 3, a second microwave source 31, a hydrolysis cavity 32, an air inlet 33 and an air outlet 34.
The embodiment of the utility model provides an in, pipeline 2 can be nonmetal pipeline and can be double-deck pipeline, can include inlayer and skin when pipeline 2 is double-deck pipeline, and the inlayer can be for anticorrosive material, and the skin can be the metal material.
Optionally, the inner layer may be made of polytetrafluoroethylene, and the outer layer may be made of stainless steel.
Alternatively, a silicon steel mesh may be added to the pipe 2.
The embodiment of the utility model provides an in, can include among the urea microwave heater 1: a heating cavity 11, a heat insulating layer 12, a wave absorbing layer 13, a first microwave source 14 and urea 15; wherein the wave-absorbing layer 13 may be disposed on the heat-insulating layer 12, the heating chamber 11 may be disposed on the wave-absorbing layer 13, the urea 15 may be disposed in the heating chamber 11, and the first microwave source 14 may be disposed outside the heating chamber 11.
Alternatively, the inner wall of the heating chamber 11 may be made of metal and may not absorb microwaves. For example, the inside of the heating chamber 11 may be stainless steel.
In the embodiment of the present invention, the heat insulating layer 12 may include a heat insulating material, and the wave absorbing layer 13 may include a microwave absorbing material.
Alternatively, the insulation layer 12 may be constructed of an insulating material, which may be rock, rock wool, or the like.
In order to separate the heating body and prevent the heating chamber 1 from being heated, the heat insulating layer 12 may be provided at a height higher than the wave absorbing layer 13. For example, the urea microwave heater 1 may be a device similar to a pot, the bottom of the pot may be provided with a heat insulating layer 12 and a wave absorbing layer 13, and the height of the heat insulating layer 12 is higher than that of the wave absorbing layer 13.
Optionally, the wave-absorbing layer 13 may be made of a microwave-absorbing material, such as a wave-absorbing body, and the microwave-absorbing material may be graphite or silicon carbide.
In the embodiment of the present invention, the number of the first microwave sources 14 may be plural and may be arranged on the top outer wall of the heating cavity 11 in an array manner.
Optionally, a feed hopper (not shown in fig. 1) may be provided in the heating chamber 11, and may be used to feed urea 15 into the heating chamber 11.
The embodiment of the utility model provides an in, can include in the module of hydrolysising 3: a second microwave source 31, a hydrolysis cavity 32, a gas inlet 33 and a gas outlet 34; wherein, the second microwave source 31 may be disposed outside the hydrolysis chamber 32, and the gas outlet 33 and the gas inlet 34 may be disposed at both ends of the hydrolysis chamber 32, respectively.
In the embodiment of the present invention, the number of the second microwave sources 31 may be multiple and may be arranged on the outer side wall of the hydrolysis cavity 32 in an array manner.
The embodiment of the utility model provides an in, pipeline 2 can be arranged in carrying the result in the urea microwave heater 1 to the module of hydrolysising 3.
In the embodiment of the present invention, the air inlet 33 can be used for conveying high temperature steam into the hydrolysis cavity 32; and the gas outlet 34 can be used for discharging ammonia gas obtained after hydrolysis treatment.
Alternatively, the temperature of the high temperature steam entering the hydrolysis chamber 32 through the inlet 33 may be in the range of 100 ℃ or higher, such as 200 ℃ to 300 ℃.
Illustratively, urea 15 in the heating chamber 11 is pyrolyzed under the heating action of microwaves generated by the first microwave source 14, and the obtained pyrolysis products include ammonia NH3, cyanuric acid-amide, biuret, etc., and under the pressure generated when the first microwave source 14 is heated, high-temperature water vapor enters the hydrolysis chamber 32 of the hydrolysis module 3 through the pipeline 2, and then the pyrolysis products are subjected to hydrolysis treatment under the action of the second microwave source 31 and the high-temperature water vapor, so that the ammonia obtained after the hydrolysis treatment is discharged through the air outlet 34 for being discharged to the air or recycled. The shell of the microwave urea hydrolysis ammonia production device is basically cool, and the internal local area is hot in the whole process of preparing ammonia gas, so that the whole microwave urea hydrolysis ammonia production device can stably work for a long time, and secondary crystallization is not generated.
The embodiment of the utility model discloses, a microwave urea hydrolyzation ammonia plant, include: urea microwave heater, hydrolysis module and pipeline; wherein, the urea microwave heater is connected with the hydrolysis module through the pipeline. That is to say, the utility model provides a microwave urea system ammonia device of hydrolysising only needs the pyrolysis product that acquires urea through urea microwave heater, get into the hydrolysis treatment back in the module with the pyrolysis product via the pipeline entering hydrolysis again, can obtain the ammonia that accords with the demand, not only simple structure easily realizes, the treatment effeciency is high, small, with low costs, moreover safe and reliable, the energy consumption is low, economic benefits is good, thereby the preparation efficiency of ammonia has been improved greatly, also can make whole microwave urea system ammonia device of hydrolysising can stable work for a long time, and do not produce the secondary crystallization.
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 (9)
1. A microwave urea hydrolyzation ammonia production device is characterized by comprising: the urea microwave heater is connected with the hydrolysis module through the pipeline.
2. The microwave urea hydrolysis ammonia production device according to claim 1, wherein the pipeline comprises an inner layer and an outer layer, the inner layer is made of an anticorrosive material, and the outer layer is made of a metal material.
3. The microwave urea hydrolysis ammonia plant of claim 1, wherein the urea microwave heater comprises: the microwave heating device comprises a heating cavity, a heat insulation layer, a wave absorbing layer, a first microwave source and urea; the microwave absorbing layer is arranged on the heat insulating layer, the heating cavity is arranged on the microwave absorbing layer, the urea is arranged in the heating cavity, and the first microwave source is arranged outside the heating cavity.
4. The microwave urea hydrolysis ammonia production device of claim 3, wherein the inner wall of the heating chamber is made of metal.
5. The microwave urea-hydrolysis ammonia production device according to claim 3, wherein the first microwave sources are plural in number and arranged in an array on the top outer wall of the heating chamber.
6. The microwave urea hydrolysis ammonia plant of claim 1, wherein the hydrolysis module comprises: the second microwave source, the hydrolysis cavity, the gas inlet and the gas outlet; the second microwave source is arranged outside the hydrolysis cavity, and the air outlet and the air inlet are respectively arranged at two ends of the hydrolysis cavity.
7. The microwave urea-hydrolysis ammonia production device according to claim 6, wherein the second microwave sources are plural in number and arranged in an array on an outer side wall of the hydrolysis chamber.
8. The microwave urea-hydrolysis ammonia production plant of claim 1, wherein the conduit is configured to convey the product from the urea microwave heater to the hydrolysis module.
9. The microwave urea hydrolysis ammonia production device according to claim 6, wherein the gas inlet is used for delivering high-temperature water vapor into the hydrolysis cavity; and the gas outlet is used for discharging the ammonia gas obtained after the hydrolysis treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022474281.8U CN214059928U (en) | 2020-10-30 | 2020-10-30 | Microwave urea hydrolyzation ammonia production device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022474281.8U CN214059928U (en) | 2020-10-30 | 2020-10-30 | Microwave urea hydrolyzation ammonia production device |
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| CN214059928U true CN214059928U (en) | 2021-08-27 |
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| CN202022474281.8U Active CN214059928U (en) | 2020-10-30 | 2020-10-30 | Microwave urea hydrolyzation ammonia production device |
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