CN213824189U

CN213824189U - Zero-emission treatment and circulation system for production waste gas

Info

Publication number: CN213824189U
Application number: CN202022494198.7U
Authority: CN
Inventors: 唐锦婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-07-30
Anticipated expiration: 2030-11-02

Abstract

The utility model provides a zero release of production waste gas is handled and circulation system, include: a production device; the tail gas air supply system is connected with the production device, receives the tail gas discharged by the production device and respectively controls the tail gas into a first exhaust volume and a second exhaust volume; the waste gas treatment system is connected with the tail gas air supply system and receives a first exhaust amount discharged by the tail gas air supply system; and the dust removal system is connected with the tail gas air supply system and receives a second displacement discharged by the tail gas air supply system, wherein the second displacement is greater than the first displacement. The utility model provides a pair of processing and circulation system of waste gas zero release provides a stable, efficient waste gas zero release processing and cyclic utilization technique, and it has simple structure, moves stably, handles high-efficient, waste gas zero release, feed particles recycle, waste heat recovery utilizes's advantage.

Description

Zero-emission treatment and circulation system for production waste gas

Technical Field

The utility model relates to a circulation treatment technical field especially relates to a zero release of process gas is handled and circulation system.

Background

The malodorous gas is any peculiar smell gas which stimulates olfactory organs to cause unpleasant feeling and harm living environment. In recent years, along with the development of the production and manufacturing industry and the improvement of the living standard of people, the environmental protection consciousness is gradually enhanced, the requirement of the public on the living environment is higher and higher, and the malodorous gas discharged by various industries affects the quality of the living environment of the public, so that the complaint in the aspect of environmental protection is increased; by way of introduction, malodor and odor complaints are second only to noise complaints and are the second place in environmental problems. Common malodorous substances comprise hydrogen sulfide, ammonia, aldehydes, ketones, alcohols, esters, organic sulfur, organic amine, organic acids, aromatic hydrocarbons, terpenes and the like, and the malodorous substances are difficult to treat and have high cost due to the characteristics of multiple types, low threshold value and the like. The patent aims to solve the problem of odor emission of food industry, feed industry enterprises and the like, and explores and summarizes an odor treatment process which is feasible and excellent in treatment effect according to the emission characteristics of waste gas of the industry, such as high temperature, high humidity, high dust and large air volume. The processing concept of changing waste into valuable and recycling is adopted, no or little emission is realized, and the foreign odor complaint caused by foreign odor discharge is thoroughly solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a zero release of waste gas is handled and circulation system can be stable, efficient waste gas production zero release is handled and cyclic utilization technique, and it has simple structure, operation stability, handles high-efficient, the waste gas zero release, fodder particulate matter recycle, waste heat recovery utilizes's advantage.

The utility model relates to a realize like this, a production waste gas zero release is handled and circulation system, include:

a production device;

the tail gas air supply system is connected with the production device, receives the tail gas discharged by the production device and respectively controls the tail gas into a first exhaust volume and a second exhaust volume;

the waste gas treatment system is connected with the tail gas air supply system and receives a first exhaust amount discharged by the tail gas air supply system;

and the dust removal system is connected with the tail gas air supply system and receives a second displacement discharged by the tail gas air supply system, wherein the second displacement is greater than the first displacement.

In one embodiment, the system further comprises:

and the waste heat recovery system is connected with the dust removal system and receives the waste heat discharged by the waste heat recovery system.

In one embodiment, the system further comprises:

the dust sensor is connected with the dust removal system and the waste heat recovery system and used for monitoring the dust removal degree of the dust removal system in real time;

the first pressure sensor is connected with the dust removal system, the dust sensor and the waste heat recovery system, and is used for monitoring the pressure of the dust removal system in real time.

In one embodiment, the system further comprises:

and the waste heat utilization system is connected with the waste heat recovery system and utilizes the heat energy discharged by the waste heat recovery system through the action of the heat exchanger.

In one embodiment, the system further comprises:

and the cooling dehydration system is connected with the waste heat recovery system, and the cooling dehydration system receives the waste gas discharged by the waste heat recovery system and then carries out cooling dehydration.

In one embodiment, the system further comprises:

the temperature and humidity sensor is connected with the cooling dehydration system and used for detecting the temperature and humidity of the cooling dehydration system;

the sewage treatment system is connected with the cooling dehydration system and used for receiving the condensation sewage discharged by the cooling dehydration system and treating the condensation sewage to reach the discharge standard.

In one embodiment, the system further comprises:

and the oxidation deodorization and sterilization system is connected with the cooling and dehydration system, comprises an ozone generator, a photocatalytic oxidation and deodorization device and a low-temperature plasma deodorization device and is used for sterilizing waste gas and harmful organisms in products.

In one embodiment, the system further comprises:

the ultrasonic wave strengthening processing system is connected with the oxidation deodorization sterilization system and is used for accelerating the decomposition of ozone discharged by the oxidation deodorization sterilization system and strengthening the removal of peculiar smell;

the ozone sensor is connected with the ultrasonic wave strengthening treatment system and used for sensing the ozone degree of the ultrasonic wave strengthening treatment system.

In one embodiment, the system further comprises:

and the pressure equalizing and speed reducing system is connected with the ultrasonic strengthening treatment system and the production device, reduces the return air speed and the return air pressure of the gas discharged by the ultrasonic strengthening treatment system, and keeps the natural air inlet state of the production device in a simulation mode.

In one embodiment, the system further comprises:

and the second pressure sensor is connected with the pressure equalizing and reducing system and is used for monitoring the pressure of the pressure equalizing and reducing system in real time.

The technical scheme of the utility model the technological effect who reaches does:

the utility model provides a pair of zero release of process gas is handled and circulation system, tail gas air supply system control tail gas respectively for first displacement and second displacement. The exhaust gas treatment system receives a first exhaust amount discharged by the exhaust gas air supply system. And the dust removal system receives a second exhaust volume discharged by the tail gas air supply system, wherein the second exhaust volume is greater than the first exhaust volume. The utility model provides a production device can be applicable to the usage in many fields, through the partial process flow of tail gas treatment and cyclic utilization partial process flow respectively handle the step, mainly relate to a stable, efficient food production, feed processing, the zero release of medicament processing waste gas is handled and cyclic utilization technique. Including but not limited to coarse crushing waste gas, micro crushing waste gas, ultra micro crushing waste gas, cooler waste gas, dryer dehumidifying waste gas, feeding air conveying waste gas, production head tail dehumidifying waste gas, workshop warehouse unorganized waste gas and the like in the food industry, the feed industry and the medicament (containing traditional Chinese medicine decoction pieces) production industry, and is suitable for multi-field application and increases applicability.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

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, and 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 of the present invention.

Fig. 1 is a schematic block diagram of an embodiment of the present invention;

fig. 2 is a schematic block diagram of another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

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 embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The following describes the present invention with reference to the accompanying drawings.

As shown in fig. 1, the present invention is thus implemented.

In fig. 1, a zero emission treatment and circulation system (hereinafter referred to as "system") 100 for producing waste gas includes a production apparatus 110, a tail gas blowing system 120, a waste gas treatment system 130, and a dust removal system 140. The production device 110 refers to a production device related to exhaust emission in the industries of food, feed and medicament (including herbal pieces or western medicine pieces), and includes but is not limited to a pulverizer, a dryer, a cooler, etc. In other words, the production apparatus 110 can be used in industries of various fields. The tail gas air supply system 120 is connected with the production device 110, the tail gas air supply system 120 receives tail gas discharged by the production device 110 and controls the tail gas into a first exhaust amount and a second exhaust amount respectively, an automatic control device is arranged inside the tail gas air supply system 120 to divide the tail gas into at least two parts of exhaust amounts, and in other embodiments, the tail gas air supply system 120 can also divide the exhaust amounts into three parts or four parts for more purposes. In addition, the exhaust air supply system 120 includes, but is not limited to, organized and unorganized exhaust air fan air volume in the food industry, the feed industry and the medicament (containing traditional Chinese medicine decoction pieces) production industry. Considering the balance relationship of air quantity and air pressure of a recycling system, most of the discharged tail gas is recycled, more than 90-99% of the discharged tail gas is discharged, and the rest of the discharged tail gas is treated by a waste gas treatment technology and then reaches the standard to be discharged.

The exhaust gas treatment system 130 is connected to the exhaust gas supply system 120, and the exhaust gas treatment system 130 receives a first exhaust amount discharged by the exhaust gas supply system 120. The first exhaust amount (for example, 1% to 10%) discharged by the production device 110, the tail gas blowing system 120, the waste gas treatment system 130, and finally the waste gas reaching the standard can be regarded as a partial process flow of tail gas treatment. Dust pelletizing system 140 connects tail gas air supply system 120, and dust pelletizing system 140 accepts the second displacement (for example 90% ~ 99%) that tail gas air supply system 120 discharged, and wherein, the second displacement is greater than first displacement, the utility model discloses a second displacement mainly used cyclic utilization part process flow, and first displacement mainly used tail gas treatment part process flow. In the dust removing system 140, dust plays a key role in the propagation and diffusion of the odor as an important carrier of the odor molecules, so that the odor concentration of the tail gas needs to be reduced by dust removal. The purpose of the dedusting system 140 is to reduce dust in the emitted organized, unorganized exhaust gas. Because the waste gas has the characteristics of high temperature, moisture, oil and the like, a pulse dust collector with a water-repellent and oil-proof filter bag or a dust collector with a plastic sintered plate (also called a 'sintered plate') is mainly adopted for dust settling treatment. The filter bag dust remover and the sintering plate dust remover are both provided with pulse injection devices, and dust adhered to the filter bag and the sintering plate needs to be cleaned regularly to ensure the dust removal effect and ensure good stability of operation. The dust remover and the air inlet pipeline are subjected to heat preservation treatment, so that condensed water is prevented from being generated, and the service life of the dust removing filter material is shortened.

In fig. 2, the system 200 includes a waste heat recovery system 250, a dust sensor 251, a first pressure sensor 253, a waste heat utilization system 260, a temperature and humidity reduction and dehydration system 270, a temperature and humidity sensor 271, a sewage treatment system 273, an oxidation deodorization and sterilization system 280, an ultrasonic wave reinforcement treatment system 290, an ozone sensor 291, an equalizing pressure and reducing speed system 293, and a second pressure sensor 295.

In one embodiment, the waste heat recovery system 250 is connected to the dust removal system 140, and the waste heat recovery system 250 receives the waste heat discharged from the dust removal system 140. The waste heat utilization system 260 is connected to the waste heat recovery system 250, and the waste heat utilization system 260 utilizes the heat energy discharged from the waste heat recovery system 250 through the action of a heat exchanger. For example, in the waste heat recovery system 250 and the waste heat utilization system 260, the gas-gas heat exchanger or the gas-liquid heat exchanger is used for cooling the waste gas and recovering the waste heat, and the recovered waste heat is used for preheating the gas flow or the liquid flow of the relevant equipment (such as preheating at an air inlet of a dryer, preheating of a liquid adding system or preheating of boiler water, and the like), so that not only can the production energy consumption be effectively reduced, but also the waste gas is fully cooled, the adverse effect of the waste heat on the environment is reduced, and the cost of the subsequent treatment of the waste gas is reduced. The dust sensor 251 is connected to the dust removal system 140 and the waste heat recovery system 250, and the dust sensor 251 is used for monitoring the dust removal degree of the dust removal system 140 in real time. And the first pressure sensor 253 is connected to the dust removal system 140, the dust sensor 251 and the waste heat recovery system 250, and the first pressure sensor 253 is used for monitoring the pressure of the dust removal system 140 in real time. In addition, the dust removing system 140 is also provided with an explosion-proof and explosion-venting device to ensure safe operation. Meanwhile, the dust removing system 140 is provided with the dust sensor 251, the first pressure sensor 253 and alarm feedback, so that the dust removing effect and the pressure difference condition are monitored in real time, and the feedback is carried out in time when a fault occurs.

In an embodiment, the temperature reduction dehydration system 270 is connected to the waste heat recovery system 250, and the temperature reduction dehydration system 270 receives the exhaust gas discharged from the waste heat recovery system 250 and then performs temperature reduction dehydration. In the cooling dehydration system 270, since water molecules are also one of the important carriers of the odor molecules, and the diffusion and transmission of the odor are aggravated by high temperature, the exhaust gas needs to be cooled and dehydrated to further reduce the concentration of the odor. And the dust which cannot be removed by the dust removal system can be reduced while the temperature is reduced and the dehydration is carried out, so that the method has a decisive effect on the control and subsequent treatment of the peculiar smell.

The cooling and dewatering system 270 mainly relates to equipment such as a heat exchanger, a water chiller, an evaporative condenser, a cooling tower, a transfer water tank, a water pump, a pipeline valve and the like. The heat exchanger mainly has the function of cooling and dehydrating the waste gas, and can adopt a gas-gas heat exchanger and a gas-liquid heat exchanger. Wherein, gas-gas heat exchanger uses ambient air as cooling medium to cool down waste gas, mainly plays the effect of cooling down in advance, and the waste gas temperature of being suitable for is greater than 60 ℃. The gas-liquid heat exchanger mainly takes refrigerating fluid as a cooling medium to cool the waste gas, and can be used for pre-cooling and deep cooling treatment. The refrigerating fluid can be directly purchased from low-temperature liquid media such as finished ice water, liquid nitrogen and the like, and can also be prepared by equipment such as a water chiller, an evaporative condenser or a cooling tower and the like. The purchased ice water and liquid nitrogen are conveyed to the heat exchanger through the pump valve to cool the waste gas and then discharged, wherein the ice water can be used as production water, and the liquid nitrogen is heated to become gas which is volatilized, so that the environment is not influenced. The prepared chilled water is conveyed to the heat exchanger through the water pump to cool the waste gas, and then returns to the transit water tank, and is cooled by the water cooler and recycled. Two methods of chilled water production are provided below:

preparation method of chilled water 1:

the equipment such as a water cooler (containing a condenser), a spray tower, a water pump, a pipeline and the like is adopted. The refrigerant (also called "refrigerant") absorbs heat of the cooled liquid in the evaporator and is vaporized into steam, and the cooled liquid forms chilled water to cool the exhaust gas through the heat exchanger. The compressor continuously draws the generated vapor from the evaporator and compresses it. The compressed high-temperature and high-pressure steam is sent to a condenser and then is subjected to heat release and condensation to form high-pressure liquid, the high-pressure liquid is subjected to pressure reduction by a throttling mechanism and then enters an evaporator for re-vaporization, and the heat of the cooled liquid is absorbed; the water after temperature rise is conveyed to the cooling tower through the water pump to be cooled and then returns to the condenser to cool the refrigerant, and the operation is repeated.

Preparation method of chilled water 2:

a water cooler (without a condenser), an evaporative condenser and the like are adopted. The evaporative condenser integrates a shell-and-tube water-cooled condenser, a cooling tower, a circulating water pump, a water pool and a water pipeline. The superheated high-pressure refrigerant gas discharged from the compressor in the water chiller passes through a condensing exhaust pipe in the evaporative condenser, so that the high-temperature gaseous refrigerant exchanges heat with spray water and air outside the exhaust pipe and is recycled to the water chiller evaporator, the heat of the cooled liquid is absorbed and vaporized into steam again, and the cooled liquid forms chilled water to cool waste gas through a heat exchanger. Compared with the traditional cooling tower, the evaporative condenser has the advantages of compact structure, less occupied area, light weight, less connecting pipelines, convenient installation and the like, and meanwhile, the power of the compressor is saved by at least 10 percent compared with other cooling tower/condenser systems, and the running cost is lower. Importantly, the application of ice cold accumulation in cooling is as follows: in order to realize the optimization of power consumption, the preparation methods 1 and 2 of the chilled water refrigerate the chilled water at the valley power and the flat power at night and store the chilled water in a large enough transfer water tank, so that the refrigerating capacity required by daily waste gas emission treatment is ensured, and the uninterrupted operation of an environment-friendly system is ensured.

In an embodiment, the temperature and humidity sensor 271 is connected to the temperature reduction and dehydration system 270, and the temperature and humidity sensor 271 is used for detecting the temperature and humidity of the temperature reduction and dehydration system 270. Sewage treatment system 273 connects cooling dewatering system 270, and sewage treatment system 273 is used for receiving the condensation sewage that cooling dewatering system 270 discharged to discharge to reaching standard through handling condensation sewage. The sewage removed in the cooling and dewatering system 270 in the sewage treatment system 273 is treated by sewage treatment equipment and is recycled as production water or plant greening water without being discharged. Because the biodegradability of the waste water is good, a treatment process of anaerobic fermentation and an activated sludge method is adopted. The treated sewage reaches the secondary discharge standard of pollutant discharge Standard of urban Sewage treatment plant (GB 18918-. The sewage treatment execution standard is as follows:

serial number	Basic control items	Second order standard
			1	Chemical Oxygen Demand (COD) (mg/l)	100
2	Biological Oxygen Demand (BOD) (mg/l)	30
			3	Suspension (SS) (mg/l)	30
4	Animal and vegetable oil (mg/l)	5
			5	Ammonia nitrogen (in terms of N) (mg/l)	25

In one embodiment, the oxidation, deodorization and sterilization system 280 is connected to the cooling and dewatering system 270, and the oxidation, deodorization and sterilization system 280 includes an ozone generator, a photocatalytic oxidation and deodorization device and a low-temperature plasma deodorization device for performing sterilization treatment on the exhaust gas and harmful organisms in the product. In addition, the oxidation, deodorization and sterilization system 280 is one of an ozone deodorizer, a photocatalytic deodorization device, and a low-temperature plasma deodorization device. The treatment system can further reduce the peculiar smell of the tail gas, and can simultaneously carry out sterilization treatment on the waste gas and the harmful organisms in the product, thereby ensuring the product quality. An ozone generator is a device for producing ozone gas (O3). Ozone is easy to decompose and inconvenient to store, so the ozone needs to be prepared on site and used on site. The main three types are high-voltage discharge type, ultraviolet irradiation type and electrolysis type. The main control parameters include ozone generation amount, ozone concentration, discharge voltage, power, air treatment medium, etc. Ozone has a strong oxidizing power, the oxidation-reduction potential of which is second only to that of fluorine, and organic or inorganic substances which generate odor and other odors can be rapidly decomposed by virtue of the strong oxidizing performance of ozone.

The photocatalytic oxidation deodorization device is characterized in that when light quanta with the wavelength of below 253.7nm are irradiated on photocatalyst titanium dioxide particles under the irradiation of a UV (ultraviolet) lamp, electrons of a catalyst in a valence band are excited by the light quanta and jump to a conduction band to form free electrons. Titanium dioxide forms a positively charged hole in the valence band, thus forming an electron-hole pair. By utilizing the oxidation of the generated holes and the reduction capability of free electrons, the titanium dioxide reacts with moisture H2O and O2 contacted with the surface to generate free radicals with extremely strong oxidation force, the free radicals can decompose and break functional bonds of all organic matters almost, the structure of organic matter molecules in the waste gas is changed, hydrogen (H) and carbon (C) contained in the waste gas are changed into water and carbon dioxide, and the organic waste gas and malodorous molecules are degraded and purified.

The low-temperature plasma deodorization equipment is characterized in that electrons obtain energy from an electric field in the discharge process of a high-frequency high-voltage electric field, the energy is converted into internal energy or kinetic energy of pollutant molecules through inelastic collision, the molecules obtaining the energy are excited or ionized to form active groups, meanwhile, oxygen and moisture in the air can also generate a large amount of nascent state hydrogen, active oxygen, hydroxyl oxygen and other active groups under the action of high-energy electrons, and a series of complex physical and chemical reactions are initiated after the active groups collide with each other. From the active group composition of the plasma, it can be seen that the plasma is rich in particles with extremely high chemical activity, such as electrons, ions, free radicals, excited molecules, and the like. The pollutant in the waste gas reacts with the active groups with higher energy and is finally converted into substances such as CO2, H2O and the like, thereby achieving the aim of purifying the waste gas. Meanwhile, under the action of an external electric field, a large amount of energetic electrons generated by discharge bombard pollutant molecules, so that the pollutant molecules are ionized, dissociated and excited, and macromolecular pollutants are changed into simple small molecules or toxic and harmful substances are changed into non-toxic and harmless or low-toxicity and low-harmful substances.

In one embodiment, the ultrasonic wave enhanced processing system 290 is connected to the oxidation deodorization sterilization system 280, and the ultrasonic wave enhanced processing system 290 is used for accelerating the decomposition of the ozone discharged from the oxidation deodorization sterilization system 280 and enhancing the removal of the odor. For example, the ultrasonic wave enhanced treatment system 290 utilizes an ultrasonic generator to accelerate the decomposition of ozone and enhance the removal of odor, thereby ensuring the effective removal of odor and ensuring that the ozone at the discharge port does not exceed the standard. By means of the ultrasonic cavitation effect and the generated physical and chemical effects, on one hand, the decomposition of ozone is strengthened, and a large amount of free radicals are generated. On the other hand, the increased free radicals enhance the decomposition and removal of the odor. The ultrasonic wave strengthening treatment system 290 is provided with an ozone sensor 291 and alarm feedback, monitors the ozone value in the circulating tail gas and adjusts the ozone value within the limit value of national, local and industrial standards. The uniform pressure reduction system 293 is connected to the ultrasonic enhanced treatment system 290 and the production device 110, and the uniform pressure reduction system 293 reduces the return air speed and the return air pressure of the gas discharged from the ultrasonic enhanced treatment system 290, and performs a simulation mode to keep the production device 110 in a natural air intake state. In other words, the uniform pressure and velocity reduction system 293 is provided with a uniform pressure and velocity reduction box, which reduces the return air speed, reduces the return air pressure, simulates the natural air intake state of the production device, and ensures the stability of the air path system. Ozone sensor 291 is connected to ultrasonic wave intensifying treatment system 290, and ozone sensor 291 is used for sensing the ozone degree of ultrasonic wave intensifying treatment system 290. And the second pressure sensor 295 is connected to the pressure equalizing and reducing system 293 for monitoring the pressure of the pressure equalizing and reducing system 293 in real time.

The utility model provides a through a plurality of system equipment in cyclic utilization part process flow, at first by apparatus for producing 110, tail gas air supply system 120 (second displacement) after that, dust pelletizing system 140 after that, waste heat recovery utilizes system 250 after that, cooling dewatering system 270 after that, oxidation deodorization sterilization system 280 after that, uniform pressure deceleration system 293 after that, through return air circulation pipeline after that, get back to apparatus for producing 110 at last. On the other hand, in the process flow of the tail gas treatment part, the first exhaust amount (e.g. 1% to 10%) discharged by the production device 110, then the tail gas blowing system 120, then the waste gas treatment system 130, and finally the waste gas reaches the standard and is discharged. The advantages of stable and efficient production waste gas zero-emission treatment and recycling technology and waste heat recycling of the production waste gas zero-emission treatment and recycling system can be achieved, and environmental protection utilization is enhanced.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims

1. A zero emission treatment and circulation system for production waste gas is characterized by comprising:

a production device;

2. The system of claim 1, further comprising:

3. The system of claim 2, further comprising:

4. The system of claim 2, further comprising:

5. The system of claim 2, further comprising:

6. The system of claim 5, further comprising:

7. The system of claim 5, further comprising:

8. The system of claim 7, further comprising:

9. The system of claim 8, further comprising:

10. The system of claim 9, further comprising: