Disclosure of Invention
The invention aims to provide a wet flue gas desulfurization absorption oxidation device, which aims to solve the defects in the prior art.
The invention is implemented by the following technical scheme: the wet flue gas desulfurization absorption oxidation device comprises an absorption tower, wherein the bottom of the absorption tower is fixedly connected with a fixed box, a first transmission cavity is formed in the fixed box, a first treatment assembly is fixedly connected to one side of the absorption tower and inside the first transmission cavity, a second treatment assembly is fixedly connected to the other side of the absorption tower and inside the first transmission cavity, the first treatment assembly and the second treatment assembly respectively comprise a treatment box, two treatment boxes are respectively fixedly connected with a discharge valve at the top, one ends of the discharge valves respectively extend into the absorption tower, a rotating column is respectively connected in the treatment box in a rotating manner, a plurality of first connecting pipes are respectively arranged in the rotating column, a plurality of spray columns are respectively arranged at one ends of the outer sides of the rotating columns and the first connecting pipes and respectively communicated with the corresponding first connecting pipes, one end of the rotating column extends to the outer side of the treatment box and is fixedly connected with a rotating disc, one side of the treatment box is fixedly connected with a transmission box, the top of the transmission box is fixedly connected with a mounting plate, an annular air groove is formed in the mounting plate, the annular air groove is connected with the annular disc in a sliding manner, one side of the rotating disc is fixedly connected with a plurality of switching valves, one end of each switching valve is provided with a second connecting pipe, one end of each second connecting pipe penetrates through the annular disc and extends to the inner side of the annular air groove, the other end of each switching valve extends to the inner side of the rotating column and is connected with one end of a corresponding first connecting pipe, the connecting box is arranged on the outer side of the rotating disc and is positioned on one side of each switching valve, one side of the inner cavity of the connecting box is connected with a second rotating shaft in a rotating manner, the valve rod of the switch valve and the outer side of the second rotating shaft are respectively sleeved with a first belt pulley connected through belt transmission.
Optionally, the inside equal rotation of link box is connected with first reciprocal lead screw, the equal threaded connection in the outside of first reciprocal lead screw has the slider, the rack is all installed to the one end of slider, the rack all cooperatees with first drive gear, the one end of first reciprocal lead screw all extends to the outside of link box and fixed cover is equipped with second drive gear, the fixed cover of the equal fixedly connected with in top of drive box, first tooth section is all installed to fixed cover inboard, the second tooth section is all installed to the inboard one side that just is located first tooth section of fixed cover, first tooth section and second tooth section all cooperate with second drive gear.
Optionally, the air connecting pipe is installed to the one end of mounting panel, the drive box is installed to the one end of air connecting pipe, the inside rotation of drive box is connected with first axis of rotation, the one end of air connecting pipe extends to annular air tank inside, the intake pipe is all installed to the other end of drive box, the bottom of first axis of rotation all extends to inside the drive box, one side of handling the case all rotates and is connected with the actuating post, the actuating post all overlaps with the outside of rotating the post and is equipped with engaged with fifth drive gear, the top of drive box all rotates and is connected with the connecting rod, the connecting rod all overlaps with the outside of actuating post and is equipped with engaged with fifth bevel gear, the bottom of connecting rod all extends to the below of drive box, the second belt pulley that first axis of rotation and the outside of connecting rod all overlap and be equipped with through belt drive connection, the below of first drive box all rotates and is connected with the connecting axle, the connecting rod all overlaps with engaged with first bevel gear with the outside of connecting axle, the one end of connecting axle all extends to the outside of fixed box, the bottom of handling the case all installs first connecting valve.
Optionally, first transmission intracavity installs first pump, the one end of first pump all is connected with the one end of two first connecting valves, the swirler is all installed to the both sides that just lie in first pump in the first transmission intracavity, two feed valves are installed to the other end of first pump, the one end of feed valve all extends to inside the swirler, overflow valve is all installed to one side of swirler, the row head is all installed to the bottom of swirler.
Optionally, the equal fixedly connected with curb plate in top of swirler, the equal fixedly connected with of one side of just being located the swirler of first transmission intracavity portion is two all rotate between the first fixed plate and be connected with the reciprocal lead screw of second, the equal threaded connection in the outside of the reciprocal lead screw of second has the second fixed plate, one side of second fixed plate all with one side sliding connection of curb plate, rotary joint is all installed at the top of second fixed plate, the bottom of second fixed plate all rotates and is connected with the swinging tube, the top of swinging tube all is connected with the bottom of rotary joint, the top of swinging tube all is provided with the fixed pipe, one side of first transmission intracavity chamber just is located the top of fixed pipe and all installs the roof, the bottom of roof all rotates and is connected with the transfer line, the equal sliding connection in inside the transfer line has the transfer line, the spline groove has all been seted up to the transfer line inboard, the outside of transfer line just is located the inside spline internally mounted, the bottom of transfer line all extends to the second fixed plate to the bottom of second fixed plate, the bottom of transfer line all extends to the bottom of third transmission intracavity portion and is equipped with the inside the transmission sleeve through the side of third transmission tube, the equal side of swinging tube is equipped with the inside the transmission sleeve.
Optionally, the rose box is all installed to the below that just is located the swirler in first transmission intracavity, filtering membrane is all installed to the rose box inside, first transmission intracavity just is located and installs the second pump machine between two rose boxes, two first solenoid valves are installed to the one end of second pump machine, the one end of first solenoid valve all extends to the rose box inside, the bottom of overflow valve all extends to the rose box inside, the addition case is all installed to the bottom of first transmission intracavity and the below that is located the rose box, add the equal rotation of case inside and be connected with the hybrid axle, two second solenoid valves are installed to the other end of second pump machine, the one end of second solenoid valve all extends to the addition incasement portion, the detector is all installed to the bottom of adding the incasement chamber, the feed liquor valve is all installed at the top of addition case, one side fixedly connected with third pump machine of fixed box, two third solenoid valves are installed to the one end of third pump machine, the one end of third solenoid valve all extends to the inside of addition case, the third pump machine just is located the other end of third solenoid valve installs the absorber, two absorber tower top is installed to the absorber tower top.
Optionally, the second transmission chamber has all been seted up to the both sides that just lie in first transmission chamber inside the fixed case, the inside all rotation of second transmission chamber is connected with the drive shaft, the bottom of second transmission chamber inner chamber is all rotated and is connected with the actuating lever, the actuating lever all overlaps in the outside of actuating lever and drive shaft and is equipped with the third bevel gear of engaged with, the transmission post all overlaps in the outside of actuating lever and is equipped with the fourth belt pulley of being connected through belt drive, the top of hybrid axle all extends to the top of adding the case, the actuating lever all overlaps in the outside of hybrid axle and is equipped with the fifth belt pulley of being connected through belt drive, the one end of drive shaft all extends to the outside of fixed case.
Optionally, the connecting shafts that the drive shaft that the first processing assembly corresponds and the second processing assembly corresponds are a set of, the connecting shafts that the drive shaft that the second processing assembly corresponds and the first processing assembly correspond are a set of, two sets of the connecting shafts all overlap with the outside of drive shaft and are equipped with the sixth belt pulley of being connected through belt transmission.
The invention has the advantages that:
1. this flue gas wet flue gas desulfurization absorption oxidation unit through being provided with absorption tower, swirler and adding the case, can carry out gypsum and liquid separation to the solution of processing incasement portion through the swirler, then to the lime stone solution of retrieving the interior input needs concentration, adjusts the lime stone concentration of mixed solution to when recycling the liquid, can not influence the efficiency of solution absorption sulfur dioxide in the flue gas.
2. This flue gas wet flue gas desulfurization absorbs oxidation unit, through being provided with the treatment box, steering column and ooff valve, can rotate through the flow drive steering column of high-pressure oxygen, and then drive spray tube rotates, when importing high-pressure oxygen into solution, stir solution, make solution and high-pressure oxygen contact completely, so that react and produce gypsum, can rotate at the steering column, when making the spray tube upwards rotate, close the spray tube, thereby can avoid spray tube spun gas to blow solution back to the bottom of absorption tower inner chamber, prevent the oxygen extravagant simultaneously, make oxygen not contact with solution, direct discharge, can open the spray tube that corresponds when the spray tube rotates downwards, spout high-pressure oxygen into solution, again stir solution and oxygen through steering column and spray tube, can evenly distributed oxidation air distribution's homogeneity has been improved, thereby improve oxidation air and calcium sulfite's contact time, and the conversion rate of calcium sulfite has been improved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 3 and fig. 5 to 10, the present invention provides a technical solution: the utility model provides a flue gas wet flue gas desulfurization absorption oxidation device, including absorption tower 1, the fixed box 2 of bottom fixedly connected with of absorption tower 1, first transmission chamber 3 has been seted up to the inside of fixed box 2, the inside and one side fixedly connected with first processing module 4 that is located absorption tower 1 of first transmission chamber 3, the inside and opposite side fixedly connected with second processing module 5 that is located absorption tower 1 of first transmission chamber 3, first processing module 4 and second processing module 5 all include processing box 7, the top of two processing boxes 7 is all fixedly connected with exhaust valve 6, the one end of exhaust valve 6 all extends to inside of absorption tower 1, the inside all rotation of processing box 7 is connected with rotation post 9, a plurality of first connecting pipes 10 are all installed to the inside of rotation post 9, the outside of rotation post 9 just is located the one end of first connecting pipe 10 and all installs a plurality of spray columns, and the spray column all is linked together with corresponding inside the first connecting pipe 10, the one end of rotation post 9 all extends to the outside of processing box 7 and fixedly connected with rotation plate 12, one side all fixedly connected with transmission box 32 of processing box 7, the top of transmission box 32 is all fixedly connected with first annular switch 11, annular switch 11 is connected with annular switch 13 and annular valve 13 is connected with annular switch 13, annular switch 13 and annular valve 13 is all connected with annular switch 13 and annular valve 13 is installed to annular switch 13, annular switch 13 is all connected with annular valve 13 inside and annular valve 13 is connected with annular valve 13, annular valve 13 is connected with annular valve 13 inside is installed annular valve 13 inside and is connected with annular valve 13, the valve rod of the switch valve 13 and the outer side of the second rotating shaft 21 are respectively sleeved with a first belt pulley 27 which is connected through belt transmission.
Wherein, the inside all rotates and is connected with first reciprocating screw 23 of connection box 77, the outside all threaded connection of first reciprocating screw 23 has slider 24, rack 25 is all installed to the one end of slider 24, rack 25 all cooperatees with first drive gear 22, the one end of first reciprocating screw 23 all extends to the outside of connection box 77 and fixed cover is equipped with second drive gear 26, the fixed cover 76 of the equal fixedly connected with in top of transmission box 32, first tooth section 28 is all installed to the fixed cover 76 inboard, the second tooth section 29 is all installed to the inboard just one side that lies in first tooth section 28 of fixed cover 76, first tooth section 28 and second tooth section 29 all cooperate with second drive gear 26, can rotate at spliced pole 9, thereby when making the spray tube upwards rotate, close the spray tube, thereby can avoid the gas of spray tube blowout to blow solution to the bottom of absorption tower 1 inner chamber, prevent the oxygen extravagant simultaneously, make oxygen not contact with the solution, directly discharge.
Wherein, the air connecting pipe 15 is installed at one end of the mounting plate 11, the driving box 18 is installed at one end of the air connecting pipe 15, the first rotating shaft 19 is rotationally connected inside the driving box 18, one end of the air connecting pipe 15 extends into the annular air groove 14, the air inlet pipe 20 is installed at the other end of the driving box 18, the bottom end of the first rotating shaft 19 extends into the driving box 32, the driving column 72 is rotationally connected at one side of the treatment box 7, the driving column 72 and the outer side of the rotating column 9 are respectively sleeved with a meshed fifth transmission gear 75, the top of the driving box 32 is rotationally connected with the connecting rod 33, the outer sides of the connecting rod 33 and the driving column 72 are respectively sleeved with a meshed fifth bevel gear 73, the bottom end of the connecting rod 33 extends to the lower part of the driving box 32, the outside of first axis of rotation 19 and connecting rod 33 all overlaps and is equipped with the second belt pulley 34 of being connected through belt drive, the inside below that just is located transmission case 32 of first transmission chamber 3 all rotates and is connected with connecting axle 35, the connecting rod 33 all overlaps with the outside of connecting axle 35 and is equipped with the first bevel gear 36 of engaged with, the one end of connecting axle 35 all extends to the outside of fixed box 2, first connecting valve 31 is all installed to the bottom of handling case 7, can rotate through the flow drive rotation post 9 of high-pressure oxygen, and then drive spray tube rotates, when importing the solution with high-pressure oxygen, stir the solution for solution and high-pressure oxygen contact are complete, so that react and produce gypsum.
Wherein, first transmission chamber 3 internally mounted has first pump 30, the one end of first pump 30 all is connected with the one end of two first connecting valves 31, the swirler 38 is all installed to the both sides that just lie in first pump 30 in the inside of first transmission chamber 3, two feed valves 37 are installed to the other end of first pump 30, the one end of feed valve 37 all extends to the swirler 38 inside, overflow valve 39 is all installed to one side of swirler 38, the head 58 is all installed to the bottom of swirler 38, can separate solution and gypsum, can reuse the solution.
Wherein, the top of the cyclone 38 is fixedly connected with a side plate 74, two first fixing plates 40 are fixedly connected in the first transmission cavity 3 and positioned on one side of the cyclone 38, a second reciprocating screw 41 is rotatably connected between the two first fixing plates 40, a second fixing plate 45 is rotatably connected on the outer side of the second reciprocating screw 41, one side of the second fixing plate 45 is slidably connected with one side of the side plate 74, a rotary joint 46 is arranged on the top of the second fixing plate 45, a rotary pipe 47 is rotatably connected on the bottom of the second fixing plate 45, the top end of the rotary pipe 47 is connected with the bottom end of the rotary joint 46, a fixing pipe 50 is arranged on the top end of the rotary joint 46, a top plate 57 is rotatably connected on one side of the inner cavity of the first transmission cavity 3 and positioned above the fixing pipe 50, a transmission column 42 is rotatably connected on the bottom of the top plate 57, the transmission post 42 is inside all sliding connection has transfer line 44, the spline groove has all been seted up to the transfer line 42 inboard, the outside of transfer line 44 just is located the spline groove inside and all installs spline spare, the bottom of transfer line 44 all extends to the below of second fixed plate 45, the outside of transfer line 44 and rotation pipe 47 all overlaps and is equipped with the third belt pulley 48 of being connected through belt drive, the outside of transfer line 42 and second reciprocating screw 41 all overlaps and is equipped with meshed third drive gear 43, the bottom of rotation pipe 47 all extends to the swirler 38 inside and installs shower nozzle 49, feed liquor pipe 51 is all installed to the both sides of first transmission chamber 3 inner chamber, the one end of fixed pipe 50 all communicates with feed liquor pipe 51 inside through the hose, can clear up the inside adhesion thing of swirler 38 inner wall, prevent adhesion thing from blocking up the swirler 38 inside, influence the swirler 38 to separate gypsum and solution.
Wherein, the rose box 59 is all installed to the below that just is located the swirler 38 in first transmission chamber 3 inside, the filtration membrane 60 is all installed to the rose box 59 inside, install second pump 61 in the inside and be located between two rose boxes 59 of first transmission chamber 3, two first solenoid valves 62 are all installed to the one end of second pump 61, the one end of first solenoid valve 62 all extends to the rose box 59 inside, the bottom of overflow valve 39 all extends to the rose box 59 inside, the bottom of the inner chamber of first transmission chamber 3 just is located the below of rose box 59 and all installs interpolation case 64, add case 64 inside all rotates and is connected with mixing shaft 67, two second solenoid valves 63 are all installed to the other end of second pump 61, the one end of second solenoid valve 63 all extends to interpolation case 64 inside, the detector is all installed to the bottom of interpolation case 64 inner chamber, feed liquor valve 66 is all installed at the top of interpolation case 64, one side fixedly connected with third pump 69, two third solenoid valves 65 are installed to one end of third pump 69, the one end of third solenoid valve 65 all extends to interpolation case 64 inside, the lime stone and is located the other end of third pump 69 and installs in order to influence the flue gas absorber 1, the absorption tower 1 can be in the flue gas concentration can be adjusted to the absorption tower, the absorption tower 1 is not be installed to the top of the absorption tower, the absorption tower 1 is used to the absorption tower is not in the absorption tower is adjusted to the absorption tower.
Example two
Referring to fig. 1, 2, 4, and 7 to 10, the present invention provides a technical solution: the second transmission cavity 52 is all offered to the both sides that just lie in first transmission cavity 3 in fixed box 2, the inside all rotates in second transmission cavity 52 is connected with drive shaft 54, the bottom in second transmission cavity 52 inner chamber is all rotated and is connected with actuating lever 53, the outside of actuating lever 53 and drive shaft 54 all overlaps and is equipped with meshed third bevel gear 55, the fourth belt pulley 56 that is connected through belt transmission is all overlapped in the outside of drive post 42 and actuating lever 53, the top of hybrid shaft 67 all extends to the top of interpolation case 64, the fifth belt pulley 68 that is connected through belt transmission is all overlapped in the outside of actuating lever 53 and hybrid shaft 67, the one end of drive shaft 54 all extends to the outside of fixed box 2, through the flow of high-pressure oxygen, can drive this device and go on, the mixed work of recovering solution and compensating solution, stir the inflation work to the solution of handling case 7 inside, clear up the work to the swirler 38 inner wall.
The driving shaft 54 corresponding to the first processing component 4 and the connecting shaft 35 corresponding to the second processing component 5 are in a group, the driving shaft 54 corresponding to the second processing component 5 and the connecting shaft 35 corresponding to the first processing component 4 are in a group, the six pulleys 71 connected through belt transmission are sleeved on the outer sides of the two groups of the connecting shafts 35 and the driving shaft 54, after a certain amount of solution is stored in the processing box 7 on the second processing component 5, the first processing component 4 is started according to the steps, then the rotating column 9 on the first processing component 4 is rotated according to the preset flow, the solution on the second processing component 5 is processed and the preset flow is performed, after a certain amount of solution is stored in the processing box 7 on the first processing component 4, the second processing component 5 is started according to the steps, then the rotating column 9 on the second processing component 5 is rotated according to the preset flow, and the solution on the first processing component 4 is processed and the preset flow is performed.
In summary, when the wet flue gas desulfurization absorption oxidation device is used, the liquid suction pipe arranged at the other end of the third pump 69 pumps limestone slurry out and then discharges the limestone slurry into the spray pipe 70, the flue gas which enters the absorption tower 1 through the flue gas inlet pipe and rises upwards is atomized and sprayed to absorb sulfur dioxide in the flue gas, the generated calcium sulfite solution falls below the inner cavity of the absorption tower 1, the solution can be received through the first treatment assembly 4 by sequentially opening the first treatment assembly 4, when the solution in the treatment box 7 reaches a certain amount, the discharge valve 6 corresponding to the second treatment assembly 5 is opened, so that the solution at the bottom of the inner cavity of the absorption tower 1 enters the treatment box 7 through the discharge valve 6, at the moment, oxygen enters the driving box 18 through the air inlet pipe 20 and flows into the gas connecting pipe 15, at the moment, the oxygen pushes the fan blades outside the first rotating shaft 19 to move, thereby driving the first rotating shaft 19 to rotate, the first rotating shaft 19 drives the connecting rod 33 to rotate through the second belt pulley 34, the driving column 72 is driven to rotate through the fifth bevel gear 73, the rotating column 9 drives the rotating disk 12 to rotate through the fifth transmission gear 75, the rotating disk 12 drives the annular disk 16 to circumferentially move along the inside of the annular air groove 14 through the switching valve 13, oxygen enters the inside of the annular air groove 14 through the air linkage pipe 15, enters the inside of the first connecting pipe 10 through the opened switching valve 13, then is sprayed into the solution in the treatment tank 7 through the spraying column, calcium sulfite solution reacts with the oxygen to generate calcium sulfate, the rotating column 9 drives the switching valve 13 to rotate in the rotating process of the rotating column 9, the first tooth segment 28 drives the second transmission gear 26 to rotate when the switching valve 13 rotates to one side of the first tooth segment 28, the first reciprocating screw rod 23 is enabled to rotate, the sliding block 24 drives the rack 25 to move, the rack 25 drives the first transmission gear 22 to rotate, the valve rod on the switch valve 13 is driven to rotate through the second rotating shaft 21 and the first belt pulley 27, the switch valve 13 is opened, oxygen can enter the inside of the switch valve 13 and is sprayed into the solution at the bottom of the inner cavity of the treatment box 7, when the switch valve 13 rotates to one side of the second tooth section 29, the second tooth section 29 drives the second transmission gear 26 to reset and rotate, the first reciprocating screw rod 23 resets and rotates, the sliding block 24 drives the rack 25 to reset and move, the rack 25 drives the first transmission gear 22 to reset and rotate, and the valve rod on the switch valve 13 is driven to reset and rotate through the second rotating shaft 21 and the first belt pulley 27, so that the switch valve 13 is closed;
when the second treatment component 5 is used, a period of time is required to wait for the inner cavity of the treatment tank 7 to collect a certain solution, the rotary column 9 is rotated, before the rotary column 9 rotates, the corresponding first connecting valve 31 of the first treatment component 4 is opened, so that the first pump 30 sucks the solution in the treatment tank 7 through the first connecting valve 31, then the solution is discharged into the cyclone 38 through the first pump 30, the gypsum slurry with high solid content spirally moves downwards under the combined action of the centrifugal force of the vortex chamber in the cyclone 38 and the gravity of the solid contained in the slurry, the slurry with low solid content is discharged into subsequent treatment equipment through one end of the discharge head 58, the slurry with low solid content spirally moves upwards under the centrifugal force, the slurry with low solid content is poured into the filter tank 59 through the overflow valve 39, calcium sulfate crystals are filtered through the filter membrane 60, then the solution in the filter tank 59 is sucked by the second pump 61 through the first electromagnetic valve 62 which is opened, then the solution is discharged into the adding tank 64 through the second electromagnetic valve 63 which is opened, after the treatment is completed, the other end of the discharging head 58 is opened, the residual solution in the cyclone 38 is discharged, a detector in the adding tank 64 detects the limestone content of the solution in the adding tank 64, and according to the detection result, a replenishing solution with proper concentration is replenished into the adding tank 64 through the liquid inlet valve 66, and the solution in the adding tank 64 is recycled;
when the rotating column 9 rotates, the connecting rod 33 drives the connecting shaft 35 to rotate through the first bevel gear 36, the connecting shaft 35 drives the driving shaft 54 to rotate through the sixth belt pulley 71, the driving shaft 54 drives the driving rod 53 to rotate through the third bevel gear 55, the driving rod 53 drives the transmission column 42 to rotate through the fourth belt pulley 56, the transmission column 42 drives the transmission rod 44 to rotate through the spline grooves and the spline pieces, the transmission rod 44 drives the third belt pulley 48 to rotate, the rotating tube 47 drives the spray head 49 to rotate, cleaning water enters the inside of the liquid inlet tube 51, then enters the inside of the fixed tube 50 through a hose, then enters the inside of the rotating tube 47 through the rotary joint 46, finally is sprayed out through the spray head 49, the inner wall of the cyclone 38 is washed and cleaned, the transmission column 42 rotates through the third transmission gear 43 to drive the second reciprocating screw 41 to rotate, the second reciprocating screw 41 drives the second fixed plate 45, the rotary pipe 47 and the spray head 49 to move downwards, so that after the spray head 49 rotates for a few circles along the inner wall of the cyclone 38, the spray head 49 moves downwards for a certain height, the inner wall of the cyclone 38 is cleaned, the internal blockage of the cyclone 38 is prevented from being caused by attachments, the driving rod 53 rotates to drive the mixing shaft 67 to rotate through the fifth belt pulley 68, the mixing blade arranged on the outer side of the mixing shaft 67 mixes the reclaimed liquid and the supplementary liquid in the adding box 64, the limestone content of the solution in the adding box 64 is regulated, then the third pump 69 pumps out the solution in the adding box 64 through the third electromagnetic valve 65, and then discharges the solution into the spray pipe 70 again to spray the flue gas, and the purified flue gas with sulfur dioxide removed is discharged into the next treatment equipment through the tower outlet for treatment after mist drops are removed through the demister;
after a certain amount of solution is stored in the treatment tank 7 on the second treatment module 5, the first treatment module 4 is started up according to the above steps, and then the rotation column 9 on the first treatment module 4 is rotated according to the above steps, so that the solution on the second treatment module 5 is treated and the above steps are performed.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.