CN214654221U

CN214654221U - Air stripping deamination device based on microwave

Info

Publication number: CN214654221U
Application number: CN202120426401.9U
Authority: CN
Inventors: 马中发; 孙琪琛; 董昌锋
Original assignee: Shaanxi Qinglang Wancheng Environmental Protection Technology Co Ltd
Current assignee: Shaanxi Qinglang Wancheng Environmental Protection Technology Co Ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-11-09
Anticipated expiration: 2031-02-25

Abstract

The utility model provides an air stripping deamination device based on microwave, include: the gas stripping tower comprises a gas stripping tower body, an air inlet, a fan, a microwave source, a liquid tank, a spraying layer, a packing layer and an air outlet, wherein the spraying layer and the packing layer are sequentially arranged inside the gas stripping tower body from top to bottom, the liquid tank is arranged at the bottom of the gas stripping tower body, the microwave source is arranged on the outer side wall of the gas stripping tower body, the air inlet is arranged on the bottom side wall of the gas stripping tower body, the fan is arranged at the air inlet, and the air outlet is arranged at the top of the gas stripping tower body. That is to say, the utility model discloses utilize the catalytic action of microwave, promote NH4 ion in the ammonia-containing wastewater and decompose into NH3 to blow off through the air stripping and draw out by high efficiency, whole extraction in-process does not need acid and alkali, both reduced the waste production, also reduced the production of salt, and also than ordinary heating extraction efficiency height, make the production rate of ammonia high and surplus ammonium ion concentration low, but have simple structure, safe and reliable, easy operation, with low costs, continuous operation's advantage.

Description

Air stripping deamination device based on microwave

Technical Field

The utility model belongs to the technical field of the air stripping deamination, a but not limited to air stripping deamination device based on microwave is related to.

Background

At present, when the wastewater discharged by urban factories is ammonia-containing wastewater, the ammonia-containing wastewater enters a water environment to cause eutrophication of a water body and cause black and smelly water body, the difficulty of water supply treatment and the cost increase are increased, and people and organisms are directly poisoned. Therefore, how to extract the ammonia gas from the ammonia-containing wastewater quickly and efficiently is becoming a popular research direction in the environmental protection field.

In the prior art, a traditional gas stripping deamination device is generally adopted to extract ammonia gas in ammonia-containing wastewater, and the traditional gas stripping deamination device needs to firstly add alkali into the ammonia-containing wastewater to adjust the pH value of the ammonia-containing wastewater to be more than 11, and then needs to add acid after deamination to neutralize liquid until the pH value is 7.

However, the extraction efficiency of ammonia from ammonia-containing wastewater is not high because a large amount of acid and alkali is required for extracting ammonia from ammonia-containing wastewater by using a conventional gas stripping deamination device, and the content of waste in the wastewater is also increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned not enough that uses traditional air stripping deamination device to draw the ammonia in-process that contains in the ammonia waste water to exist provides an air stripping deamination device based on microwave to need a large amount of acid and alkali and increase the waste content in the waste water and the ammonia extraction efficiency of the ammonia waste water that leads to not high problem when solving traditional air stripping deamination device and extracting the ammonia in the ammonia waste water.

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 an air stripping deamination device based on microwave, the device includes: the device comprises an air stripping tower, an air inlet, a fan, a microwave source, a liquid tank, a spraying layer, a packing layer and an air outlet;

wherein, the layer of spraying with the packing layer from the top down set gradually in the inside of gas stripping tower, the liquid case set up in the bottom of gas stripping tower, the microwave source sets up on the outside lateral wall of gas stripping tower, the air inlet sets up on the bottom lateral wall of gas stripping tower, the fan sets up air inlet department, the gas outlet set up in the top of gas stripping tower.

Optionally, the device further comprises a pump and a pipeline, and the liquid tank is connected with the spraying layer through the pump and the pipeline.

Optionally, the pump is disposed inside the liquid tank, and a filter screen is disposed around the pump.

Optionally, the packing layer is arranged in the middle of the inside of the stripping tower, and the packing layer comprises non-microwave-absorbing packing.

Optionally, the number of the microwave sources is multiple, and the multiple microwave sources are distributed around the tower waist of the stripper tower.

Optionally, the spraying layer comprises a plurality of spray heads, and the plurality of spray heads are used for spraying the liquid in the liquid tank into the interior of the gas stripping tower in a spraying manner.

Optionally, the stripper is made of stainless steel.

Optionally, the air outlet is disposed above the spray layer.

Optionally, the microwave source is configured to irradiate the generated microwaves into the filler layer.

Optionally, the device further comprises a sensor, wherein the sensor is used for measuring the temperature of the packing layer, the air volume and the temperature of the air inlet and measuring the concentration of ammonia gas at the air outlet.

The utility model has the advantages that: a microwave-based gas stripping deamination apparatus, comprising: the device comprises an air stripping tower, an air inlet, a fan, a microwave source, a liquid tank, a spraying layer, a packing layer and an air outlet; wherein, it sets gradually from the top down to spray layer and packing layer in the inside of gas stripping tower, the liquid case set up in the bottom of gas stripping tower, the microwave source sets up on the outside lateral wall of gas stripping tower, the air inlet sets up on the bottom lateral wall of gas stripping tower, the fan sets up air inlet department, the gas outlet set up in the top of gas stripping tower. That is to say, the utility model discloses when the ammonia wastewater in the liquid tank is sprayed with the spraying form under the effect on layer, can be under the catalytic action of the microwave that the microwave source produced, promote the ammonium ion in the ammonia wastewater to decompose into ammonia, and the ammonia of decomposition department can be blown off through the air stripping under the malleation of air inlet department fan and is drawed out by high efficiency fast, whole extraction in-process does not need acid and alkali, both reduced the waste production, also reduced the production of salt, and also it is high than ordinary heating extraction efficiency, make the ammonia production rate high and remaining ammonium ion concentration low, the problem that the ammonia wastewater's that results in extraction efficiency is not high when having solved the ammonia of current traditional air stripping deamination device and extracting ammonia in the ammonia wastewater needs a large amount of acid and alkali and increase the waste content in the waste water, has simple structure, safety and reliability, easy operation, with low costs, The device has the advantage of continuous operation, and is widely applied in the field of environmental protection, thereby greatly prolonging the service life of the microwave-based gas stripping deamination device.

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-based gas stripping deamination apparatus according to an embodiment of the present invention.

Icon: 1-stripping tower, 2-air inlet, 3-fan, 4-microwave source, 5-liquid box, 6-spraying layer, 7-packing layer, 8-air outlet and 9-pump.

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:

air stripping deamination: the gas stripping deamination has strict requirements on the pH value in the wastewater, when the pH value is 11.5-12.0, ammonium ions in the wastewater can be changed into free ammonia, chemical reaction can be generated through the gas stripping deamination, the free ammonia is changed into a gas phase from a liquid phase through a steam stripping method at this time, the ammonia entering the gas phase reacts with dilute sulfuric acid to generate ammonium sulfate, the effect of a catalyst is further recycled, raw materials in the preparation process are recycled, purified gas and steam generated after reaction enter a circulating heat pump to be recycled, the energy-saving effect is achieved, the wastewater purification effect is achieved, water resources are protected, and ecological sustainable development is maintained.

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.

Fig. 1 is a schematic view of a microwave-based gas stripping deamination apparatus according to an embodiment of the present invention. The gas stripping deamination device based on microwave provided by the embodiment of the invention is described in detail with reference to fig. 1.

Fig. 1 is the utility model discloses an embodiment provides a gas stripping deamination device schematic diagram based on microwave, as shown in fig. 1, this gas stripping deamination device based on microwave includes: the device comprises an air stripping tower 1, an air inlet 2, a fan 3, a microwave source 4, a liquid tank 5, a spraying layer 6, a packing layer 7 and an air outlet 8.

Wherein, spray layer 6 and packing layer 7 and can from the top down set gradually in the inside of gas stripping tower 1, liquid case 5 can set up in the bottom of gas stripping tower 1, and microwave source 4 can set up on the outside lateral wall of gas stripping tower 1, and air inlet 2 can set up on the bottom lateral wall of gas stripping tower 1, and fan 3 can set up in air inlet 2 department, and gas outlet 8 can set up in the top of gas stripping tower 1.

In the embodiment of the utility model provides an in, the device can also include pump 9 and pipeline, and liquid case 5 can be connected with spraying layer 6 through pump 9 and pipeline. Illustratively, the conduit may be a water pipe.

In the embodiment of the utility model, the gas stripping tower 1 can be stainless steel. As an example, the stripping column 1 may be shaped like a dedusting spray column.

Alternatively, the fan 3 may be a positive pressure fan, and may be configured to blow air into the stripping tower 1 in a positive pressure manner, for example, the fan 3 may be configured to blow air from bottom to top when entering air into the stripping tower 1 through the air inlet 2.

Alternatively, the pump 9 may be arranged inside the tank 5 and a filter screen may be arranged around the pump 9.

It should be noted that the filter screen disposed around the pump 9 can be used for filtering impurities such as dust and particulate matters, so that the pump 9 is not blocked, and the filter screen can be cleaned periodically.

The embodiment of the utility model provides an in, packing layer 7 can set up in the middle of the inside of stripper 1, can include among the packing layer 7 not absorb the microwave and pack. Alternatively, the non-microwave absorbing filler may be alumina.

The embodiment of the utility model provides an in, the quantity of microwave source 4 can be a plurality of, and a plurality of microwave sources 4 can distribute around the tower waist of stripper 1.

Alternatively, a plurality of microwave sources 4 may be uniformly arranged around the tower waist of the stripper tower 1. Preferably, in order to prevent mutual interference between the microwaves, the adjacent microwave sources are vertically arranged, so that the mutual interference between the microwaves is avoided, the microwave radiation power is increased, the waste gas reaction is rapidly catalyzed, and the efficiency of decomposing ammonium ions into ammonia gas in the ammonia-containing wastewater is improved.

In the embodiment of the present invention, the microwave source 4 can be used to irradiate the generated microwave into the packing layer 7.

Alternatively, the packing layer 7 may be disposed in the middle of the inside of the stripper column 1, and the plurality of microwave sources 4 may be distributed around the column waist of the stripper column 1, whereby it can be determined that the plurality of microwave sources 4 are disposed around the outside of the packing layer 7.

It should be noted that, because the packing layer 7 includes the non-absorbing microwave packing, the microwave generated by the microwave source 4 can be transmitted more deeply when being irradiated into the packing layer 7, and the microwave can accelerate the decomposition of ammonium ions into free ammonia when being used as a catalyst, thereby accelerating the extraction efficiency of ammonia gas, and the extraction efficiency is higher than that of common heating, thereby not only improving the generation rate of ammonia gas, but also greatly reducing the concentration of residual ammonium ions in ammonia-containing wastewater.

The embodiment of the utility model provides an in, spray layer 6 can include a plurality of shower nozzles, and a plurality of shower nozzles can be arranged in spouting the inside of gas stripping tower 1 with the liquid of liquid tank 5 with the spraying mode.

Alternatively, the liquid in the liquid tank 5 may comprise ammonia-containing wastewater, which may comprise ammonium ions, i.e. NH4 +.

It should be noted that the ammonia-containing wastewater in the liquid tank 5 can enter the spray layer 6 through the pump 9 and the pipeline, and can be sprayed into the interior of the stripper column 1 by a plurality of spray heads in the spray layer 6.

The embodiment of the utility model provides an in, gas outlet 8 can set up in the top that sprays layer 6.

In the embodiment of the utility model provides an in, the device can also include the sensor, and the sensor can be used for measuring the temperature of packing layer 6, be used for measuring the amount of wind and the temperature of air inlet 2 to and be used for measuring the concentration of 8 ammonia departments of gas port.

It should be noted that the device may further include a controller, and the controller may control the internal temperature of the stripper column 1 to be maintained at 30-80 ℃ according to the temperature of the packing layer 7 measured by the sensor and the temperature of the air entering from the air inlet 2; the controller can also adjust the spraying speeds of a plurality of spray heads in the spraying layer 6 and/or the power of the microwave source 4 according to the air volume of the air entering from the air inlet 2 and/or the concentration of the ammonia gas at the air outlet 8, so that the ammonium ions in the ammonia-containing wastewater in the liquid tank 5 can be rapidly and efficiently decomposed into the ammonia gas; the controller can also determine to execute the operation of collecting ammonia gas or the operation of generating ammonium sulfate according to the concentration of ammonia gas at the gas outlet 8, for example, the controller can be used for generating ammonium sulfate when the concentration of ammonia gas is too high, and the controller can be collected as a reducing agent for desulfurization and denitrification when the concentration of ammonia gas is too low, and can also be further decomposed to produce hydrogen.

Optionally, the device provided by the utility model can utilize the catalytic action of microwave, promotes the NH4 ion in the ammonia-containing wastewater to decompose into NH3 to blow off through the air stripping and be extracted by high efficiency.

Illustratively, when air is blown into the stripper 1 through the air inlet 2 under the positive pressure action of the fan 3, ammonia-containing wastewater in the liquid tank 5 enters the spray layer 6 under the action of the pump 9 and the pipeline, and is sprayed into the stripper 1 in a spray form through a plurality of spray heads of the spray layer 6, microwaves generated by the microwave source 4 can promote NH4 ions in the ammonia-containing wastewater to be rapidly decomposed into ammonia NH3, and the decomposed ammonia is rapidly and efficiently extracted through stripping and stripping, the generated NH3 can be discharged through the air outlet 8 and can be used as a reducing agent for desulfurization and denitrification, can be further decomposed into hydrogen, and can be further used for preparing ammonium sulfate, the generated ammonium sulfate can be recycled as a raw material in the catalyst preparation process, and the reaction equation involved in the whole process includes:

the embodiment of the utility model provides an in disclose, an air stripping deamination device based on microwave, include: the device comprises an air stripping tower, an air inlet, a fan, a microwave source, a liquid tank, a spraying layer, a packing layer and an air outlet; wherein, it sets gradually from the top down to spray layer and packing layer in the inside of gas stripping tower, the liquid case set up in the bottom of gas stripping tower, the microwave source sets up on the outside lateral wall of gas stripping tower, the air inlet sets up on the bottom lateral wall of gas stripping tower, the fan sets up air inlet department, the gas outlet set up in the top of gas stripping tower. That is to say, the utility model discloses when the ammonia wastewater in the liquid tank is sprayed with the spraying form under the effect on layer, can be under the catalytic action of the microwave that the microwave source produced, promote the ammonium ion in the ammonia wastewater to decompose into ammonia, and the ammonia of decomposition department can be blown off through the air stripping under the malleation of air inlet department fan and is drawed out by high efficiency fast, whole extraction in-process does not need acid and alkali, both reduced the waste production, also reduced the production of salt, and also it is high than ordinary heating extraction efficiency, make the ammonia production rate high and remaining ammonium ion concentration low, the problem that the ammonia wastewater's that results in extraction efficiency is not high when having solved the ammonia of current traditional air stripping deamination device and extracting ammonia in the ammonia wastewater needs a large amount of acid and alkali and increase the waste content in the waste water, has simple structure, safety and reliability, easy operation, with low costs, The device has the advantage of continuous operation, and is widely applied in the field of environmental protection, thereby greatly prolonging the service life of the microwave-based gas stripping deamination device.

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. An air stripping deamination device based on microwaves, the device comprising: the device comprises a stripping tower (1), an air inlet (2), a fan (3), a microwave source (4), a liquid tank (5), a spraying layer (6), a packing layer (7) and an air outlet (8);

wherein, spray layer (6) with packing layer (7) from the top down set gradually in the inside of stripper tower (1), liquid case (5) set up in the bottom of stripper tower (1), microwave source (4) set up on the outside lateral wall of stripper tower (1), air inlet (2) set up on the bottom lateral wall of stripper tower (1), fan (3) set up air inlet (2) department, gas outlet (8) set up in the top of stripper tower (1).

2. Microwave-based gas stripping deamination apparatus according to claim 1, further comprising a pump (9) and a pipe, wherein the liquid tank (5) is connected to the spray layer (6) via the pump (9) and the pipe.

3. Microwave-based gas stripping deamination apparatus according to claim 2, wherein the pump (9) is arranged inside the liquid tank (5) and a filter screen is arranged around the pump (9).

4. Microwave-based gas stripping deamination apparatus according to claim 1, wherein the packing layer (7) is arranged in the middle inside the gas stripping column (1), wherein the packing layer (7) comprises non-microwave-absorbing packing.

5. Microwave-based gas stripping deamination apparatus according to claim 1, wherein the number of microwave sources (4) is multiple and the multiple microwave sources (4) are distributed around the tower waist of the stripper tower (1).

6. Microwave-based gas stripping deamination apparatus according to claim 1, wherein the spray layer (6) comprises a plurality of spray nozzles for spraying the liquid in the liquid tank (5) into the interior of the stripper column (1) in a spray pattern.

7. Microwave-based gas stripping deamination apparatus according to claim 1, wherein the gas stripping tower (1) is stainless steel.

8. Microwave-based gas stripping deamination apparatus according to claim 1, wherein the gas outlet (8) is arranged above the spray level (6).

9. Microwave-based gas stripping deamination apparatus according to claim 1, wherein the microwave source (4) is adapted to irradiate the generated microwaves into the filler layer (7).

10. Microwave-based gas stripping deamination apparatus according to claim 1, further comprising sensors for measuring the temperature of the packing layer (7), the air volume and temperature of the air inlet (2), and the concentration of ammonia gas at the air outlet (8).