阅读说明：本技术 一种微波增强固体颗粒物燃烧的方法及其装置 (Method and device for enhancing combustion of solid particles by microwaves ) 是由 马中发 王露 张虎晨 于 2021-07-08 设计创作，主要内容包括：本发明提供了一种微波增强固体颗粒物燃烧的方法及其装置,涉及固体颗粒物燃烧技术领域,方法包括：获取燃烧腔内的第一温度和出气口处废气的浓度信息；基于第一温度和浓度信息确定目标控制策略；基于目标策略对燃烧腔内的固体颗粒物进行处理。本发明根据获取的燃烧腔内的温度和出气口处废气的浓度信息,控制微波源功率以及喷粉量,提高了燃烧腔内的固体颗粒物的燃烧效率,同时尾气排放达标,该装置结构简单,可靠性高,成本低,在节能环保领域具有广泛应用。(The invention provides a method and a device for enhancing solid particle combustion by microwaves, and relates to the technical field of solid particle combustion, wherein the method comprises the following steps: acquiring first temperature in a combustion chamber and concentration information of waste gas at an air outlet; determining a target control strategy based on the first temperature and concentration information; the solid particulates within the combustion chamber are treated based on a target strategy. According to the invention, the microwave source power and the powder spraying amount are controlled according to the acquired temperature in the combustion chamber and the acquired concentration information of the waste gas at the gas outlet, the combustion efficiency of solid particles in the combustion chamber is improved, and simultaneously, the tail gas emission reaches the standard.)

1. A method of microwave enhanced combustion of solid particulates, the method comprising:

acquiring first temperature in a combustion chamber and concentration information of waste gas at an air outlet;

determining a target control strategy based on the first temperature and the concentration information;

treating the solid particulates within the combustion chamber based on the target strategy.

2. The method of claim 1, wherein the determining a target control strategy based on the first temperature and concentration information comprises:

determining a first target injected powder amount and a target injected air amount based on the first temperature;

determining a target microwave source power based on the concentration information;

and treating the solid particles based on the first target powder spraying amount, the target air spraying amount and the target microwave source power.

3. The method of microwave-enhanced combustion of solid particulates according to claim 2, further comprising:

determining the relationship between the concentration of the first gas after treatment and a preset value based on the concentration information; wherein the first gas is nitrogen oxide;

and when the concentration of the first gas is determined to be greater than a preset value, determining a second target powder spraying amount.

4. A microwave-enhanced solid particulate device, the device comprising: the device comprises a combustion cavity, a microwave source, a slag pool, a slag outlet, a heat exchanger, an igniter, an air nozzle, a pulverized coal nozzle and a dust remover;

wherein a microwave source is arranged on the side wall of the combustion cavity; the heating bottom of the combustion cavity is connected with the slag pool through the slag outlet; a heat exchanger is arranged in the combustion cavity; the igniter, the air nozzle and the pulverized coal nozzle are respectively arranged at the top of the combustion cavity through a fixed bracket; and the position of an air outlet at the top of the combustion cavity is connected with a dust remover.

5. A control system for microwave enhanced combustion of solid particulates, the control system comprising: an acquisition module, a judgment module and a processing module, wherein,

the acquisition module is used for acquiring the first temperature in the combustion chamber and the concentration information of the waste gas at the gas outlet;

the judging module is used for determining a target control strategy based on the first temperature and concentration information;

the processing module is used for processing the solid particles in the combustion chamber based on the target strategy.

6. An electronic device, characterized in that the electronic device comprises: comprising a processor, a memory for storing instructions, the processor for executing the instructions stored in the memory to cause the apparatus to perform the method of microwave-enhanced solid particulate combustion as claimed in any one of claims 1 to 3.

7. A computer-readable storage medium having computer-executable instructions stored therein that, when executed, cause a computer to perform the method of microwave-enhanced solid particulate combustion as claimed in any one of claims 1 to 3.

Technical Field

The invention relates to the technical field of solid particle combustion, in particular to a method and a device for enhancing solid particle combustion by microwaves.

Background

With the rapid development of the automobile industry, the number of automobiles in China increases year by year, the life of people is more convenient due to the use of the automobiles, and the emission of a large amount of automobile exhaust in the driving process of the automobiles also brings huge burden to the environment. The automobile exhaust contains a large amount of harmful substances, such as solid suspended particulate matters, carbon monoxide, nitrogen oxides, hydrocarbons, lead and the like. The harmful gases and suspended particulate matters are directly discharged into the atmosphere, which is one of the important reasons that the current haze weather is more and the haze degree is more and more serious, and brings great harm to the health and the natural environment of people. Therefore, the treatment of solid particles in automobile exhaust is an urgent problem to be solved in the current society.

The device for treating solid particles in the prior art comprises a collecting chamber for collecting automobile exhaust, wherein an air inlet for allowing the automobile exhaust to enter the collecting chamber is formed in one end of the collecting chamber, an air outlet for allowing gas in the collecting chamber to flow out is formed in the other end of the collecting chamber, a filter for filtering the solid particles of the automobile exhaust is arranged between the air inlet and the air outlet of the collecting chamber, the filter is located above the filter and used for collecting the gas, and a pipe orifice at one end of the collecting pipe is communicated with the air outlet.

However, the prior art has the problems that the device for treating solid particles has low decomposition efficiency and is not easy to realize, so that the device which is widely applied and has high efficiency for treating solid particles is urgently needed.

Disclosure of Invention

The invention aims to provide a microwave-enhanced solid particle combustion furnace aiming at the defects of the solid particle device in the prior art, and aims to solve the problems of low decomposition efficiency and difficult realization in the prior art.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, the present invention provides a method of 1, microwave-enhanced combustion of solid particulate matter, the method comprising:

acquiring first temperature in a combustion chamber and concentration information of waste gas at an air outlet;

determining a target control strategy based on the first temperature and the concentration information;

treating the solid particulates within the combustion chamber based on the target strategy.

Optionally, the determining a target control strategy based on the first temperature and concentration information includes:

determining a first target injected powder amount and a target injected air amount based on the first temperature;

determining a target microwave source power based on the concentration information;

and treating the solid particles based on the first target powder spraying amount, the target air spraying amount and the target microwave source power.

Optionally, the method further includes:

determining the relationship between the concentration of the first gas after treatment and a preset value based on the concentration information; wherein the first gas is nitrogen oxide;

and when the concentration of the first gas is determined to be greater than a preset value, determining a second target powder spraying amount.

In a second aspect, the present invention discloses a microwave-enhanced solid particulate device, comprising: the device comprises a combustion cavity, a microwave source, a slag pool, a slag outlet, a heat exchanger, an igniter, an air nozzle, a pulverized coal nozzle and a dust remover;

wherein a microwave source is arranged on the side wall of the combustion cavity; the heating bottom of the combustion cavity is connected with the slag pool through the slag outlet; a heat exchanger is arranged in the combustion cavity; the igniter, the air nozzle and the pulverized coal nozzle are respectively arranged at the top of the combustion cavity through a fixed bracket; and the position of an air outlet at the top of the combustion cavity is connected with a dust remover.

In a third aspect, the present invention also discloses a control system for microwave-enhanced combustion of solid particles, the control system comprising: an acquisition module, a judgment module and a processing module, wherein,

the acquisition module is used for acquiring the first temperature in the combustion chamber and the concentration information of the waste gas at the gas outlet;

the judging module is used for determining a target control strategy based on the first temperature and concentration information;

the processing module is used for processing the solid particles in the combustion chamber based on the target strategy.

In a fourth aspect, the present invention further discloses an electronic device, including: comprising a processor, a memory for storing instructions, the processor being configured to execute the instructions stored in the memory to cause the apparatus to perform a method of microwave-enhanced solid particulate combustion as described in the first aspect.

In a fifth aspect, the present invention also discloses a computer-readable storage medium having stored therein computer-executable instructions that, when executed, cause a computer to perform the method of microwave-enhanced combustion of solid particulate matter as set forth in the first aspect.

The invention has the beneficial effects that: the invention provides a method and a device for enhancing solid particle combustion by microwaves, and relates to the technical field of solid particle combustion, wherein the method comprises the following steps: acquiring first temperature in a combustion chamber and concentration information of waste gas at an air outlet; determining a target control strategy based on the first temperature and the concentration information; treating the solid particulates within the combustion chamber based on the target strategy. According to the invention, the microwave source power and the powder spraying amount are controlled according to the acquired temperature in the combustion chamber and the acquired concentration information of the waste gas at the gas outlet, the combustion efficiency of solid particles in the combustion chamber is improved, and simultaneously, the tail gas emission reaches the standard.

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 flow chart of a method for microwave-enhanced combustion of solid particulates according to an embodiment of the present invention;

FIG. 2 is a schematic view of an apparatus for microwave enhanced combustion of solid particulates according to another embodiment of the present invention;

FIG. 3 is a schematic view of a control system for microwave-enhanced combustion of solid particulates according to another embodiment of the present invention;

FIG. 4 is a schematic view of an apparatus for microwave-enhanced combustion of solid particulates according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 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 figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, 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 and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

FIG. 1 is a schematic flow chart of a method for microwave-enhanced combustion of solid particulates according to an embodiment of the present invention; FIG. 2 is a schematic view of an apparatus for microwave enhanced combustion of solid particulates according to another embodiment of the present invention; FIG. 3 is a schematic view of a control system for microwave-enhanced combustion of solid particulates according to another embodiment of the present invention; FIG. 4 is a schematic view of an apparatus for microwave-enhanced combustion of solid particulates according to another embodiment of the present invention. The process of microwave-enhanced combustion of solid particles provided by the embodiment of the present invention will be described in detail below with reference to fig. 1 to 4.

The technical solution in 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.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the invention provides a method for microwave-enhanced solid particulate matter combustion, which is applied to a microwave-enhanced solid particulate matter combustion device. The steps involved in the method are described in detail below with reference to fig. 1.

Step 101: and acquiring the first temperature in the combustion chamber and the concentration information of the waste gas at the gas outlet.

In the embodiment of the invention, the microwave-enhanced solid particulate matter combustion device comprises a temperature sensor, a concentration sensor and a controller; and detecting the temperature in the combustion chamber in real time based on a temperature controller, wherein the temperature data acquired in real time is a first temperature. Further, a concentration sensor is arranged at the position of the gas outlet of the combustion chamber and used for detecting parameter information of harmful waste gas in the treated gas, wherein the parameter information comprises concentration.

Step 102: a target control strategy is determined based on the first temperature and the concentration information.

In this embodiment of the present invention, the step 102 of determining a target control strategy based on the first temperature and the concentration information includes:

step 1021, determining a first target injected powder amount and a target injected air amount based on the first temperature.

In the implementation of the invention, the controller is used for acquiring temperature data detected by the temperature sensor in real time, and determining the corresponding powder spraying amount and the sprayed air amount at the current moment according to the detected temperature data; the first target amount of sprayed powder and the target amount of sprayed air are the amount of sprayed powder and the amount of sprayed air determined after the temperature reaches the first temperature.

And step 1022, determining the target microwave source power based on the concentration information.

In the embodiment of the invention, the gas outlet is provided with the concentration sensor, the concentration of the gas after reaction is detected based on the concentration sensor, the data is sent to the controller, the controller determines the power of the microwave source based on the received data, and the power of the microwave source is the target power at the moment.

Specifically, the method further comprises: determining the relationship between the concentration of the first gas after treatment and a preset value based on the concentration information; wherein the first gas is nitrogen oxide; and when the concentration of the first gas is determined to be greater than a preset value, determining a second target powder spraying amount.

In an embodiment of the present invention, the first gas includes nitrogen oxide, and further includes carbon-containing oxidizing gas and hydrocarbon. The controller determines whether the increase of the powder ejection amount is required based on a comparison of the concentration of the received first gas with a concentration preset value. Optionally, when the concentration of the first gas is greater than the preset concentration value, the powder spraying amount is increased to a second target powder spraying amount.

And 1023, treating the solid particles based on the first target powder spraying amount, the target air spraying amount and the target microwave source power.

In the embodiment of the invention, the first target powder spraying amount is an initial powder spraying amount determined based on the temperature in the combustion chamber; the target injected air is the amount of injected air corresponding to the current temperature environment. And carrying out combustion treatment on the solid particles sprayed in the combustion chamber under the environment of target microwave source power according to the first target powder spraying amount and the target air spraying amount.

Step 103: treating the solid particulates within the combustion chamber based on the target strategy.

In the embodiment of the invention, the target strategy refers to the target microwave source power and the first target powder spraying amount which are determined based on the current temperature in the combustion chamber. Further, when the controller determines that the temperature exceeds a preset maximum value based on the acquired temperature information, the heat exchanger is started to work, and heat exchange is carried out on hot gas in the combustion chamber, so that the combustion efficiency of the solid particles is improved, and the safety of equipment is improved.

In the embodiment of the invention, the invention discloses a method and a device for enhancing solid particle combustion by microwaves, and relates to the technical field of solid particle combustion, wherein the method comprises the following steps: acquiring first temperature in a combustion chamber and concentration information of waste gas at an air outlet; determining a target control strategy based on the first temperature and the concentration information; treating the solid particulates within the combustion chamber based on the target strategy. According to the invention, the microwave source power and the powder spraying amount are controlled according to the acquired temperature in the combustion chamber and the acquired concentration information of the waste gas at the gas outlet, the combustion efficiency of solid particles in the combustion chamber is improved, and simultaneously, the tail gas emission reaches the standard.

In another possible embodiment, the present invention further provides an apparatus for microwave-enhanced combustion of solid particulates, as shown in fig. 2, comprising: the device comprises a combustion chamber 1, a microwave source 2, a slag pool 3, a slag outlet 4, a heat exchanger 5, an igniter 6, an air nozzle 7, a coal powder nozzle 8 and a dust remover 9.

Wherein, the side wall of the combustion chamber 1 is provided with a microwave source 2; the heating bottom of the combustion cavity 1 is connected with the slag pool 3 through the slag outlet 4; a heat exchanger 5 is arranged in the combustion chamber 1; the igniter 6, the air nozzle 7 and the pulverized coal nozzle 8 are respectively arranged at the top of the combustion chamber 1 through a fixed bracket; the position of the air outlet at the top of the combustion chamber 1 is connected with a dust remover 9.

In the embodiment of the invention, the heat exchanger 5 is arranged in the combustion chamber 1 and is used for carrying out heat exchange on hot gas in the chamber and reducing the temperature of the chamber, thereby achieving the protection effect on the device.

In the embodiment of the invention, the microwave sources 2 are arranged on the side wall of the combustion cavity 1, the microwave sources 2 comprise a plurality of microwave source arrays, and the plurality of microwave source arrays are arranged on the side wall of the combustion cavity 1.

The microwave is an electric wave having a frequency of 300 mhz to 300 ghz, 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.

The microwave heating has the following advantages: the heating time is short; the heat energy utilization rate is high, and energy is saved; heating uniformly; the microwave source is easy to control, and the microwave can also induce the catalytic reaction.

The microwave is generated by a microwave source, which is mainly composed of a high-power magnetron. The magnetron is a device which completes energy conversion by utilizing the movement of electrons in vacuum and can generate high-power microwave energy, for example, a 4250MHz magnetic wave tube can obtain 5MHz, and a 4250MHz klystron can obtain 30MHz, so that the microwave technology can be applied to the technical field of wastewater treatment.

In the embodiment of the invention, the igniter 6 and the air nozzle 7 are of a net structure; the pulverized coal nozzle 8 contains a denitration agent; wherein the denitrifier comprises CaO, Ca (OH)2, MgO or Mg (OH) 2; further, the igniter 6 includes a plurality of ignition points therein, and the ignition points correspond to the air nozzles one to one.

Illustratively, the microwave source 2 is installed on the side wall of the combustion chamber 1, the microwave is radiated to the combustion area through the combustion chamber 1, the pulverized coal nozzle 8 arranged on the top of the combustion chamber 1 uniformly sprays dust particles into the combustion chamber 1, and the sprayed dust particles are ignited under the action of the igniter 6. The pulverized coal nozzles 8 include combustibles, CaO, Ca (OH)2, MgO, Mg (OH)2, and NaOH therein, or the pulverized coal nozzles 8 include a denitration agent, such as urea, therein. The device's aim at through the microwave action coal dust nozzle 8 spray to the combustion chamber 1 in the fuel granule on, improve the granule temperature, combustion-supporting, SOx/NOx control simultaneously.

Specifically, a dust remover 9 is arranged at the top air outlet of the combustion chamber 1, so that particles of exhaust gas which is not fully combusted are collected in the dust collector 9, and the particles in the dust collector are regularly sprayed into the combustion chamber 1.

Wherein, the bottom of the microwave enhanced solid combustion particle furnace is provided with a slag pool 3, and the residual particles reacted in the combustion cavity 1 are collected in the slag pool.

Further, an air nozzle 7 is arranged at the position corresponding to the pulverized coal nozzle 8; the pressure of the compressed air flow can be increased by a factor of 25 or more based on the coanda effect and the micro-directional effect of the air nozzle 7. The compressed air sprayed out of the periphery of the air nozzle 7 is entrained into the air flow along the outer wall of the nozzle, and the air flow has high capacity and high spraying speed, so that the air consumption can be reduced to the greatest extent.

Optionally, a metal mesh is arranged at the position of the air vent of the combustion chamber 1; the aperture of the metal net is less than or equal to 3 mm.

In the embodiment of the invention, metal meshes are arranged at air vents of the combustion chamber 1. The inlet and outlet of the combustion chamber 1 are provided with metal nets, and the aperture of the metal net is less than or equal to 3 mm. Here, in order to prevent the microwave leakage. When the human body is very close to the microwave radiation source for a long time, the phenomena of dizziness, sleep disorder, hypomnesis, bradycardia, blood pressure reduction and the like are caused by excessive radiation energy. When the microwave leakage reaches 1mw/cm2, the eyes suddenly feel dazzled, the vision is degraded, and even cataract is caused. In order to ensure the health of users, metal nets are arranged at the inlet and the outlet of the reaction cavity, and the corners can generate microwave discharge under the action of microwaves, so that dangerous accidents are easy to happen. The metal mesh can block microwave leakage, reduce the damage of microwave to human body and improve the safety of the system.

The embodiment discloses a microwave-enhanced solid combustion pellet oven, comprising: the method comprises the following steps: the device comprises a combustion chamber 1, a microwave source 2, a slag pool 3, a slag outlet 4, a heat exchanger 5, an igniter 6, an air nozzle 7, a coal powder nozzle 8 and a dust remover 9; wherein, the side wall of the combustion chamber 1 is provided with a microwave source 2; the heating bottom of the combustion cavity 1 is connected with the slag pool 3 through the slag outlet 4; a heat exchanger 5 is arranged in the combustion chamber 1; the igniter 6, the air nozzle 7 and the pulverized coal nozzle 8 are respectively arranged at the top of the combustion chamber 1 through a fixed bracket; the position of the air outlet at the top of the combustion chamber 1 is connected with a dust remover 9. That is, the invention is based on the microwave effect, fully burns the solid fuel, has high heat production efficiency, can reach the emission standard of the treated gas, and has simple structure, low cost and strong practicability.

Fig. 3 is a schematic diagram of a control system for microwave-enhanced combustion of solid particles according to another embodiment of the present invention. The device includes: an acquisition module 301, a determination module 302, and a processing module 304, wherein,

an obtaining module 301, configured to obtain a first temperature in the combustion chamber and concentration information of the exhaust gas at the gas outlet;

a determining module 302, configured to determine a target control strategy based on the first temperature and the concentration information;

a processing module 303 for processing the solid particulate matter in the combustion chamber based on the target strategy.

It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.

In an embodiment of the present invention, a control system for microwave-enhanced combustion of solid particles in the present invention includes: the device comprises an acquisition module 301, a judgment module 302 and a processing module 303, wherein the acquisition module 301 is used for acquiring the first temperature in the combustion chamber and the concentration information of the exhaust gas at the gas outlet; a determining module 302, configured to determine a target control strategy based on the first temperature and the concentration information; a processing module 303 for processing the solid particulate matter in the combustion chamber based on the target strategy. That is to say, the microwave source power and the powder spraying amount are controlled according to the acquired temperature in the combustion chamber and the acquired concentration information of the waste gas at the gas outlet, the combustion efficiency of solid particles in the combustion chamber is improved, and simultaneously the tail gas emission reaches the standard.

Fig. 4 is a schematic diagram of an apparatus for microwave-enhanced combustion of solid particles, which is integrated in a terminal device or a chip of the terminal device according to another embodiment of the present invention.

The device includes: memory 401, processor 402.

The memory 401 is used for storing a program, and the processor 402 calls the program stored in the memory 401 to execute the above-mentioned embodiment of the method for microwave-enhanced combustion of solid particles. The specific implementation and technical effects are similar, and are not described herein again.

Preferably, the invention also provides a program product, such as a computer-readable storage medium, comprising a program which, when being executed by a processor, is adapted to carry out the above-mentioned method embodiments.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.