Low-energy-consumption energy-saving chemical light-component removing tower
阅读说明:本技术 一种低能耗节能型化工脱轻塔 (Low-energy-consumption energy-saving chemical light-component removing tower ) 是由 沈春丰 郑杰 陈路阳 于 2020-06-29 设计创作,主要内容包括:本发明属于化工脱轻塔技术领域,具体的说是一种低能耗节能型化工脱轻塔,包括塔身、保温箱体、喷洒盘、填料板和蒸发盘;塔身的内壁靠近顶端的位置固定设有喷洒盘;喷洒盘上均匀开设有轻气体出口;喷洒盘的内部为空心结构;喷洒盘底部设有的喷头与喷洒盘内部的空腔连通;喷洒盘的上表面为光滑的向上隆起的结构;喷洒盘的上表面位于轻气体出口的外圈固定设有固定管;固定管的顶部固定设有伞形的盖板;固定管上靠近顶端的位置开设有条形通槽;本发明通过设置三个储液室进行间歇下料,进而使得蒸发盘处于不断的震荡状态,使得液体在蒸发盘的内部充分的与蒸发盘的内壁进行接触,从而蒸发盘内部的热量能够被充分的利用,提高加热效果及效率。(The invention belongs to the technical field of chemical light-ends removing towers, and particularly relates to a low-energy-consumption energy-saving chemical light-ends removing tower which comprises a tower body, a heat insulation box body, a spraying disc, a packing plate and an evaporation disc, wherein the tower body is provided with a heat insulation box body; a spraying disc is fixedly arranged on the inner wall of the tower body close to the top end; light gas outlets are uniformly formed in the spraying disc; the interior of the spraying disc is of a hollow structure; the spray head arranged at the bottom of the spray disc is communicated with the cavity inside the spray disc; the upper surface of the spraying disc is of a smooth and upward-bulged structure; a fixed pipe is fixedly arranged on the outer ring of the upper surface of the spraying disc, which is positioned at the light gas outlet; an umbrella-shaped cover plate is fixedly arranged at the top of the fixed pipe; a strip-shaped through groove is formed in the position, close to the top end, of the fixed pipe; according to the invention, the three liquid storage chambers are arranged for intermittent blanking, so that the evaporation disc is in a continuous oscillation state, and the liquid is fully contacted with the inner wall of the evaporation disc in the evaporation disc, so that the heat in the evaporation disc can be fully utilized, and the heating effect and efficiency are improved.)
1. The utility model provides a low energy consumption energy-saving chemical industry takes off light tower which characterized in that: comprises a tower body (1), a heat preservation box body (2), a spraying tray (4), a packing plate (7) and an evaporation tray (10); the whole tower body (1) is of a cylindrical structure, and the top of the tower body (1) is of a semi-spherical structure; the bottom of the tower body (1) is fixedly welded on the upper surface of the heat preservation box body (2); the inner wall of the top of the tower body (1) is uniformly provided with a condensing plate (20); a spraying disc (4) is fixedly arranged on the inner wall of the tower body (1) close to the top end; light gas outlets (5) are uniformly formed in the spraying disc (4); the inner part of the spraying disc (4) is of a hollow structure; a spray head (6) arranged at the bottom of the spraying disc (4) is communicated with a cavity inside the spraying disc (4); the upper surface of the spraying disc (4) is of a smooth and upward-bulged structure; a fixed pipe (22) is fixedly arranged on the outer ring of the upper surface of the spraying disc (4) positioned at the light gas outlet (5); an umbrella-shaped cover plate (21) is fixedly arranged at the top of the fixed pipe (22); a strip-shaped through groove (23) is formed in the position, close to the top end, of the fixed pipe (22); a waste liquid outlet (3) is uniformly formed in the joint of the tower body (1) and the edge of the upper surface of the spraying disc (4); a packing plate (7) is fixedly arranged in the tower body (1) below the spraying disc (4); the packing plate (7) is uniformly provided with packing holes (8); an evaporation tray (10) used for evaporating liquid is arranged in the heat preservation box body (2); an electric heating plate is arranged on the inner wall of the evaporation tray (10); the bottom of the evaporation pan (10) is fixedly connected with the top of the spherical hinged support (11) through a connecting rod piece; the spherical hinged support (11) is positioned in a spherical sliding rail at the bottom of the heat preservation box body (2); the bottom edge of the evaporation tray (10) is fixedly connected with the bottom of the heat preservation box body (2) through a spring; an arc-shaped liquid storage bin (9) is fixedly arranged at the position, close to the top end, of the inner wall of the heat preservation box body (2); the interior of the arc-shaped liquid storage bin (9) is divided into three liquid storage chambers by partition plates; the three liquid storage chambers are respectively positioned on the front side, the left side and the right side of the inner wall of the heat preservation box body (2); the bottom of each liquid storage chamber is provided with a liquid leakage hole (13); the bottom of the liquid leakage hole (13) is provided with a sealing block (26); the sliding block arranged on the upper surface of the sealing block (26) is mutually connected with the sliding rail at the bottom of the liquid storage chamber in a sliding way; one end of the sealing block (26) is fixedly connected with the first mounting plate (28) through a spring; one end of the first mounting plate (28) is fixedly connected to the inner wall of the tower body (1); a feed opening is formed in the rear side wall of the evaporation disc (10); an arc-shaped sealing plate (30) for sealing the feed opening is arranged on the outer side of the feed opening on the outer wall of the evaporation disc (10); one end of the arc-shaped sealing plate (30) is fixedly connected with one end of the second mounting plate (29) through a spring; the second mounting plate (29) is fixedly connected to the outer edge of the evaporation pan (10); the sliding block arranged on the inner wall of the arc-shaped sealing plate (30) is mutually connected with the arc-shaped sliding groove at the edge of the evaporation disc (10) in a sliding way; a push rod (15) is fixedly arranged at the top of the second mounting plate (29); a turbine (14) is fixedly arranged on the inner wall of the top of the heat preservation box body (2); the end parts of one group of blades of the turbine (14) are movably hinged with a poke rod (18) through torsion springs; the poke rod (18) can push the three groups of sealing blocks (26) and the push rod (15) to move along the counterclockwise direction in the rotating process of the turbine (14); the top of the heat preservation box body (2) is provided with an air outlet (24); a liquid outlet (31) is arranged at the bottom of the heat preservation box body (2).
2. The low-energy-consumption energy-saving chemical light component removal tower as claimed in claim 1, wherein: the filling hole (8) is of an S-shaped structure; baffles (19) are uniformly arranged on the inner wall of the filling hole (8) in a staggered manner at opposite positions; the baffle (19) is arranged obliquely downwards.
3. The low-energy-consumption energy-saving chemical light component removal tower as claimed in claim 1, wherein: the bottom of the evaporation disc (10) is provided with an annular slide rail (34); the annular slide rail (34) is mutually connected with the annular slide plate (32) in the annular slide rail in a sliding way; the top end of a spring fixedly connected with the bottom of the heat preservation box body (2) is fixedly connected with the bottom of the annular sliding plate (32); the bottoms of the three groups of sealing blocks (26) are fixedly connected with the corresponding positions of the edges of the upper surface of the evaporation disc (10) through elastic ropes (27).
4. The low-energy-consumption energy-saving chemical light component removal tower as claimed in claim 3, wherein: the top of the annular sliding plate (32) is provided with a ball (33); the ball (33) is in contact with the inner wall of the top of the annular sliding rail (34); the balls (33) are arranged at the top of the annular sliding plate (32) in an equidistant annular arrangement.
5. The low-energy-consumption energy-saving chemical light component removal tower as claimed in claim 3, wherein: an annular cavity is formed in the annular sliding plate (32); and a gravity ball (35) is arranged in the annular cavity.
6. The low-energy-consumption energy-saving chemical light component removal tower as claimed in claim 1, wherein: an arc-shaped heating plate (16) is fixedly arranged on the inner wall of the bottom of the evaporation tray (10); the arc-shaped heating plates (16) are annularly arranged on the bottom surface of the evaporation tray (10) at equal intervals around the central axis of the evaporation tray (10), and the lengths of the arc-shaped heating plates (16) in the radial direction of the evaporation tray (10) are sequentially increased; and a circular through hole (17) is formed in the arc-shaped heating plate (16).
Technical Field
The invention belongs to the technical field of chemical light-ends removing towers, and particularly relates to a low-energy-consumption energy-saving chemical light-ends removing tower.
Background
The light component removing tower is used to remove impurities from material and change the weight of material for light component removing treatment, and the rectifying tower is a tower type gas-liquid contact device for rectification and has two main types of plate tower and packed tower, and the packed tower is mass transfer equipment with packing in the tower as gas-liquid two-phase contact member. The tower body of the lightness-removing tower is a vertical cylinder, the bottom of the lightness-removing tower is provided with a filler supporting plate, and the filler is placed on the supporting plate in a random or integral mode. And a packing pressing plate is arranged above the packing to prevent the packing from being blown by the ascending air flow. The liquid is sprayed on the packing from the top of the tower through a liquid distributor and flows down along the surface of the packing. The gas is fed from the bottom of the tower, distributed by a gas distribution device (the small-diameter tower is not provided with the gas distribution device generally), and continuously passes through the gap of the packing layer in a countercurrent manner with the liquid, and the gas phase and the liquid phase are closely contacted on the surface of the packing for mass transfer. The light component eliminating tower belongs to continuous contact type gas-liquid mass transfer equipment, the composition of two phases changes continuously along the height of the tower, and under the normal operation state, the gas phase is a continuous phase and the liquid phase is a dispersed phase.
Disclosure of Invention
The invention provides a low-energy-consumption energy-saving chemical light-component removal tower, which aims to make up the defects of the prior art and solve the problems that the heating efficiency is low and the heat energy loss is caused when a chemical light-component removal tower in the prior art heats a liquid phase into a gas phase.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a low-energy-consumption energy-saving chemical light component removal tower which comprises a tower body, a heat preservation box body, a spraying disc, a packing plate and an evaporation disc, wherein the tower body is provided with a heat preservation box body; the whole tower body is of a cylindrical structure, and the top of the tower body is of a semi-spherical structure; the bottom of the tower body is fixedly welded on the upper surface of the heat preservation box body; the inner wall of the top of the tower body is uniformly provided with a condensing plate; a spraying disc is fixedly arranged on the inner wall of the tower body close to the top end; light gas outlets are uniformly formed in the spraying disc; the interior of the spraying disc is of a hollow structure; the spray head arranged at the bottom of the spray disc is communicated with the cavity inside the spray disc; the upper surface of the spraying disc is of a smooth and upward-bulged structure; a fixed pipe is fixedly arranged on the outer ring of the upper surface of the spraying disc, which is positioned at the light gas outlet; an umbrella-shaped cover plate is fixedly arranged at the top of the fixed pipe; a strip-shaped through groove is formed in the position, close to the top end, of the fixed pipe; a waste liquid outlet is uniformly formed in the joint of the tower body and the edge of the upper surface of the spraying disc; a packing plate is fixedly arranged in the tower body below the spraying disc; the packing plate is uniformly provided with packing holes; an evaporation tray for evaporating liquid is arranged in the heat preservation box body; an electric heating plate is arranged on the inner wall of the evaporation tray; the bottom of the evaporation pan is fixedly connected with the top of the spherical hinged support through a connecting rod piece; the spherical hinged support is positioned in a spherical sliding rail at the bottom of the heat preservation box body; the bottom edge of the evaporation tray is fixedly connected with the bottom of the heat preservation box body through a spring; an arc-shaped liquid storage bin is fixedly arranged at the position, close to the top end, of the inner wall of the heat preservation box body; the interior of the arc-shaped liquid storage bin is divided into three liquid storage chambers by partition plates; the three liquid storage chambers are respectively positioned on the front side, the left side and the right side of the inner wall of the heat preservation box body; the bottom of each liquid storage chamber is provided with a liquid leakage hole; the bottom of the liquid leakage hole is provided with a sealing block; the sliding block arranged on the upper surface of the sealing block is mutually connected with the sliding rail at the bottom of the liquid storage chamber in a sliding manner; one end of the sealing block is fixedly connected with the first mounting plate through a spring; one end of the first mounting plate is fixedly connected to the inner wall of the tower body; a feed opening is formed in the rear side wall of the evaporation pan; an arc-shaped sealing plate for sealing the feed opening is arranged on the outer wall of the evaporation disc and positioned on the outer side of the feed opening; one end of the arc-shaped sealing plate is fixedly connected with one end of the second mounting plate through a spring; the second mounting plate is fixedly connected to the outer edge of the evaporation disc; the sliding block arranged on the inner wall of the arc-shaped sealing plate is mutually connected with the arc-shaped sliding groove at the edge of the evaporation disc in a sliding manner; a push rod is fixedly arranged at the top of the second mounting plate; a turbine is fixedly arranged on the inner wall of the top of the heat preservation box body; the end parts of one group of blades of the turbine are movably hinged with poke rods through torsional springs; the poke rod can push the three groups of sealing blocks and the push rod to move along the anticlockwise direction in the rotating process of the turbine; the top of the heat preservation box body is provided with an air outlet; a liquid outlet is formed in the bottom of the heat preservation box body;
when the evaporator works, firstly, liquid is injected into the evaporation disc, then a power supply is started, the power supply heats the inside of the evaporation disc at the moment, the low-boiling-point liquid in the evaporation disc is evaporated along with the rise of the temperature, the evaporated gas moves upwards and pushes the turbine to rotate, the poke rod positioned at the edge of the turbine pushes the sealing block at the bottom of the liquid leakage hole to rotate in the rotating process of the turbine, so that the sealing block is separated from the bottom of the liquid leakage hole, the liquid positioned in the liquid storage chamber flows downwards to one side of the evaporation disc at the moment, the falling position of the liquid on the evaporation disc sinks downwards, when the force applied by the torsion spring on the poke rod is smaller than the acting force of the first mounting plate and the spring fixedly connected with the first mounting plate on the first mounting plate, the poke rod bends and slides over the sealing block and the first mounting plate at the moment, the sealing block at the position seals the liquid leakage hole again under the, and the poke rod rebounds under the action of the torsion spring again after bypassing the group of first mounting plates and the sealing blocks, and pokes the next group of sealing blocks to move along the anticlockwise direction, and opens the next group of liquid leakage holes to discharge, at the moment, the liquid in the liquid storage chamber falls to another position of the evaporation disc through the liquid leakage holes and enables the position of the evaporation disc to incline downwards, and similarly, when the turbine continues to rotate, the poke rod on the turbine can poke the third group of sealing blocks to move along the anticlockwise direction, and open the third group of liquid leakage holes to enable the liquid in the third group of liquid storage chamber to flow downwards, so that the evaporation disc under the third group of liquid leakage holes sinks downwards, therefore, in the process of the rotation degree of the turbine, the liquid storage chambers at different positions can intermittently discharge and enable different positions of the evaporation disc to sink and float upwards, thereby enabling the liquid in the evaporation disc to spread at different positions in the evaporation disc, the gas enters the filling holes on the filling plate after moving upwards through the gas outlet holes; meanwhile, descending liquid is pumped into the spraying disc through a water pump and is sprayed out from a spray head at the bottom of the spraying disc; at the moment, the liquid is sprayed downwards in a mist shape and enters the filler holes on the filler plate for dispersion; the evaporated gas phase is in countercurrent contact with the descending liquid, during the contact of the two phases, the volatile (low boiling point) component in the descending liquid is continuously transferred to the gas phase, the difficult volatile (high boiling point) component in the gas phase is continuously transferred to the descending liquid, the concentration of the volatile component in the gas phase is higher as the gas phase is closer to the tower top, and the concentration of the difficult volatile component in the descending liquid is higher as the descending liquid is closer to the tower bottom, so that the purpose of component separation is achieved; when the turbine continues to rotate after the rotation degree, the poke rod pushes the push rod positioned at the rear side edge of the evaporation disc so that the arc-shaped sealing plate is separated from the feed opening at the edge of the evaporation disc, at the moment, the liquid without low-boiling-point components in the evaporation disc enters the interior of the heat-insulating box body from the feed opening, meanwhile, the liquid sprayed out of the spray head directly falls into the evaporation disc through the air outlet hole after the light components in the filling plate are removed, further, the low-boiling-point components which are not removed in the falling liquid are evaporated again, the evaporated liquid enters the bottom of the heat-insulating box body and finally flows out of the liquid outlet for collection, the gas with low boiling point enters the position above the spray disc through the light gas outlet, is condensed by the condensation plate and falls on the surface of the spray disc, and is finally discharged along the edge of the spray disc and the waste;
according to the invention, three liquid storage chambers are adopted for intermittent blanking, so that the evaporation disc is in a continuous oscillation state, liquid is in full contact with the inner wall of the evaporation disc in the evaporation disc, the heat in the evaporation disc can be fully utilized, the heating effect and efficiency are improved, and when the turbine rotates continuously after the rotation degree, the poke rod positioned at the edge of the turbine opens the discharge port on the evaporation disc, so that the lightened liquid enters the bottom of the heat preservation box body for collection, and the collection is convenient; simultaneously the arc stock solution storehouse is located the inside of insulation box, and the heat that is located the evaporating dish can spread the inside in arc stock solution storehouse and then preheat the inside liquid of stock solution room, and then when preventing the inside heat outward diffusion of evaporating dish for heat energy storage is in the inside liquid of stock solution room, thereby reduces the energy consumption.
Preferably, the filler holes are S-shaped structures; baffles are uniformly and alternately arranged at the positions corresponding to the inner walls of the filling holes; the baffle is arranged obliquely downwards; during operation, the filler hole is the S-shaped structure, and the even crisscross baffle that is equipped with in the position that the inner wall of filler hole is relative to can greatly increased gaseous phase and the route that the liquid phase meets, increase the meeting time of gaseous phase and liquid phase simultaneously, make the low boiling point' S in the liquid phase component can be abundant shift to the gaseous phase, thereby make to take off light more thoroughly.
Preferably, the bottom of the evaporation tray is provided with an annular slide rail; the annular slide rail is mutually connected with an annular slide plate inside the annular slide rail in a sliding way; the top end of a spring fixedly connected with the bottom of the heat preservation box body is fixedly connected with the bottom of the annular sliding plate; the bottoms of the three groups of sealing blocks are fixedly connected with the corresponding positions of the edge of the upper surface of the evaporation disc through elastic ropes; during operation, when the poker rod promoted the seal block and removes, can drive the evaporating dish through the stretch cord simultaneously and slightly rotate, when the evaporating dish rotated, can make the liquid that is located evaporating dish inside rotate in the lateral wall of evaporating dish and spread, the heated area grow to make liquid can be heated fast, improve heating efficiency.
Preferably, the top of the annular sliding plate is provided with a ball; the ball is in contact with the inner wall of the top of the annular slide rail; the balls are annularly arranged at the top of the annular sliding plate at equal intervals; when the evaporation disc rotates, the annular sliding rail and the annular sliding plate at the bottom of the evaporation disc can generate relative friction when the evaporation disc rotates, and the balls can reduce the friction resistance between the annular sliding plate and the annular sliding rail, so that the evaporation disc can rotate more smoothly.
Preferably, an annular cavity is formed in the annular sliding plate; a gravity ball is arranged in the annular cavity; the during operation, when the liquid feeding was carried out to one side of evaporating dish in the inside stock solution room of arc stock solution storehouse, this one side of evaporating dish will take place to sink under the impact force of liquid this moment, the evaporating dish inclines, the gravity ball can roll to that one side of slope simultaneously, consequently, the stock solution room of which one side carries out the liquid feeding, the gravity ball just can roll to which side, the gravity ball is continuous to make a round trip to roll in the inside annular cavity of annular slide, the vibration amplitude of evaporating dish has been increased, and then make liquid and evaporating dish contact more abundant, heating efficiency is higher.
Preferably, an arc-shaped heating plate is fixedly arranged on the inner wall of the bottom of the evaporation pan; the arc heating plates are arranged on the bottom surface of the evaporation disc in an equidistant annular manner around the central axis of the evaporation disc, and the lengths of the arc heating plates in the radial direction of the evaporation disc are sequentially increased; the arc-shaped heating plate is provided with a circular through hole; when the liquid evaporator works, when the liquid oscillates back and forth in the evaporation disc, the liquid passes through the surface of the arc-shaped heating plate, so that the heating can be fully performed, and the arc-shaped heating plate is provided with a circular through hole; liquid is broken up by the reposition of redundant personnel simultaneously when circular through-hole for liquid self high temperature portion and low temperature part misce bene carry out from heat transfer, and then make the heating more abundant.
The invention has the following beneficial effects:
1. according to the low-energy-consumption energy-saving chemical light-component removal tower, the three liquid storage chambers are arranged for intermittent blanking, so that the evaporation disc is in a continuous oscillation state, liquid is fully contacted with the inner wall of the evaporation disc in the evaporation disc, the heat in the evaporation disc can be fully utilized, the heating effect and efficiency are improved, when the turbine rotates continuously after the rotation degree, the poke rod positioned at the edge of the turbine opens the blanking port on the evaporation disc, and the lightened liquid enters the bottom of the heat insulation box body for collection, and is convenient to collect; simultaneously the arc stock solution storehouse is located the inside of insulation box, and the heat that is located the evaporating dish can spread the inside in arc stock solution storehouse and then preheat the inside liquid of stock solution room, and then when preventing the inside heat outward diffusion of evaporating dish for heat energy storage is in the inside liquid of stock solution room, thereby reduces the energy consumption.
2. According to the low-energy-consumption energy-saving chemical light-weight removal tower, the baffle is arranged on the inner wall of the filler hole, so that the meeting path of a gas phase and a liquid phase can be greatly increased, the meeting time of the gas phase and the liquid phase is increased, components with low boiling points in the liquid phase can be fully transferred to the gas phase, and the light-weight removal is more thorough.
3. According to the low-energy-consumption energy-saving chemical light-weight removal tower, the sealing block is fixedly connected with the edge of the evaporation disc through the elastic rope, the elastic rope drives the evaporation disc to rotate together when the sealing block rotates along with the poking rod, liquid is spread on the inner wall of the evaporation disc, the heating area is increased, the annular cavity is formed in the annular sliding rail at the bottom of the evaporation disc, the gravity ball is arranged in the annular cavity, the gravity ball can aggravate the inclination of the evaporation disc along with the inclination of the evaporation disc, the oscillation of the evaporation disc can be aggravated in the rolling process of the gravity ball, the contact area between the liquid and the evaporation disc is larger, the high-temperature part and the low-temperature part of the liquid are mixed more uniformly, and the heating efficiency can be improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of a first configuration of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
FIG. 6 is a top view of an evaporation pan according to the present invention;
in the figure: the tower body 1, the heat preservation box body 2, the waste liquid outlet 3, the spray tray 4, the light gas outlet 5, the shower nozzle 6, the packing plate 7, the filler hole 8, arc
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to fig. 6, the low-energy-consumption energy-saving chemical light component removal tower comprises a tower body 1, a heat preservation box body 2, a spraying tray 4, a packing plate 7 and an
when the evaporator works, firstly, liquid is injected into the
according to the invention, three liquid storage chambers are adopted for intermittent blanking, so that the
As an embodiment of the present invention, the filler hole 8 has an S-shaped structure; baffles 19 are uniformly and alternately arranged at the opposite positions of the inner wall of the filling hole 8; the baffle plate 19 is arranged obliquely downwards; during operation, filler hole 8 is the S-shaped structure, and the even crisscross baffle 19 that is equipped with in the position that the inner wall of filler hole 8 is relative to can greatly increased gaseous phase and the route that the liquid phase meets, increase the meeting time of gaseous phase and liquid phase simultaneously, make the low boiling point' S in the liquid phase component can be abundant shift to the gaseous phase, thereby make to take off light more thoroughly.
As an embodiment of the present invention, the bottom of the
As an embodiment of the invention, the top of the
As an embodiment of the present invention, an annular cavity is opened inside the annular
As an embodiment of the present invention, an
The specific working process of the invention is as follows:
when the evaporator works, firstly, liquid is injected into the
according to the invention, three liquid storage chambers are adopted for intermittent blanking, so that the
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
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