Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a tower type cavitation impinging stream reactor, which can solve the problems that the existing tower type structure is slow in energy exchange and slow in molecular motion, and the reaction efficiency is low and the phenomenon of Fe and C stacking and hardening is easy to occur due to the formation of a gas wall surface short circuit and a liquid layer short circuit.
In order to solve the problems, the invention provides a tower type cavitation impinging stream reactor, which comprises a tower cylinder, a thrust structure, an anti-blocking structure, a feeding structure and an air inlet pipe;
a sedimentation region, an impact region, a filler mass transfer region and a gas distribution region are sequentially arranged in the inner cavity of the tower from top to bottom, wherein a thrust structure and a gas inlet pipe are arranged in the gas distribution region, an anti-blocking structure is arranged in the filler mass transfer region, and a feeding structure is arranged in the impact region and used for conveying liquid, Fe and C powder into the impact region;
the top of the tower barrel is provided with a gas outlet, gas in the tower barrel is discharged through the gas outlet through a settling zone, and the bottom of the tower barrel is provided with a residual material outlet for discharging residual materials;
the thrust structure comprises a liquid receiving plate, a guide piece, an elastic piece and a supporting structure, the supporting structure is connected with the inner side wall of the tower barrel and is close to a residual material outlet, one end of the guide piece is connected with the liquid receiving plate, the other end of the guide piece is connected with the supporting structure, the elastic piece is sleeved on the guide piece so that the gas in the gas inlet pipe enters the tower barrel and the upward gas flow is regulated through the elastic piece, and the gas inlet pipe is positioned above the liquid receiving plate;
prevent stifled structure and include first sharp form sieve silk screen, the sharp form sieve silk screen of second and sieve silk screen pressure strip, first sharp form sieve silk screen is connected with the inside wall of a tower section of thick bamboo, is provided with the globular filler of Fe, C on the first sharp form sieve silk screen, and sieve silk screen pressure strip is placed on the globular filler of Fe, C, and the sharp form sieve silk screen of second sets up on sieve silk screen pressure strip.
Optionally, the feeding structure includes that two inlet pipes, two ball valves, toper Fe, C add feed bin and cavitation impinging stream nozzle, two inlet pipes set up the both sides at a tower section of thick bamboo, and one end penetrates a tower section of thick bamboo inner chamber, the other end of inlet pipe is used for discharging into liquid, cavitation impinging stream nozzle is linked together with the inlet pipe that is located a tower section of thick bamboo inner chamber, the inlet pipe that is located the tower section of thick bamboo outside sets up back the shape pipe, set up two ball valves and toper Fe on the back the shape pipe, C add feed bin, and two ball valves are located toper Fe, C and add the both sides in feed bin.
Optionally, the feeding pipe comprises a first section, a second section and a third section, wherein the first section and the second section are located on the outer side of the tower, the third section is located on the inner side of the tower, the third section is connected with the cavitation impact flow nozzle, the diameter of the second section is smaller than that of the first section, that of the third section and that of the circular pipe, the first section and the second section are connected with the circular pipe, and the diameter of the circular pipe is smaller than that of the first section and that of the third section.
Optionally, prevent that stifled structure still includes a plurality of support piece and sieve silk screen backup pad, and a plurality of support piece are even to be connected with the inside wall of a tower section of thick bamboo, and sieve silk screen backup pad sets up on support piece, and first sharp form sieve silk screen sets up in sieve silk screen backup pad.
Optionally, the support structure includes a disc and three supporting legs, the disc is connected with the three supporting legs, the three supporting legs are connected with the inner side wall of the tower, wherein the angle between adjacent supporting legs is 120 degrees, and the guide piece is connected with the disc.
Optionally, a circular hole is formed in the disc, the center line of the circular hole coincides with the center line of the tower barrel, a pin hole is formed in one end, penetrating through the circular hole, of the guide piece, a pin is arranged in the pin hole, and the elastic piece is located between the disc and the liquid receiving plate.
Optionally, one end of the air inlet pipe located in the tower barrel is conical.
Optionally, a wire mesh demister is arranged in the settling zone and used for separating gas and liquid.
Advantageous effects
According to the tower-type cavitation impinging stream reactor provided by the embodiment of the invention, gas in the gas inlet pipe is rebounded by the elastic piece on the liquid receiving plate and then rises, enters the filler mass transfer area through the first pointed sieve plate wire mesh, and blows up the Fe and C spherical fillers in the filler mass transfer area, so that the problem of hardening formed by Fe and C accumulation is effectively prevented, meanwhile, the gas continues to rise, and blows up Fe and C powder in the impinging area through the second pointed sieve plate wire mesh, so that the problem of hardening formed by Fe and C accumulation is effectively prevented.
The invention has the advantages that:
1. under the action of the thrust structure, gas is accelerated to rise, enters the filler mass transfer area and the settling area and is finally discharged from a gas outlet at the top of the tower drum, when the gas flow is large, the elastic part is shortened, the liquid receiving plate descends, otherwise, the gas rises, the gas is promoted to uniformly enter the reaction area, gas short circuit is avoided, meanwhile, the gap between the liquid receiving plate and the conical wall surface of the tower drum can be adjusted by adjusting the gas flow, the problem of liquid layer short circuit is effectively avoided, and the medium is controlled to be discharged out of the tower drum;
2. through preventing stifled structure and feeding structure, because gaseous through preventing stifled structure, avoid Fe, C to pile up, blocking phenomenon appears, gaseous entering impact area simultaneously, react with the feeding of feeding structure, improve reaction efficiency, and the pipe diameter of feeding structure is different, leads to pipe diameter pressure difference, and the Fe that adds, C enter into the inlet pipe along with the material, and the double-phase mixed medium of solid-liquid that forms passes through the nozzle and gets into reactor impact area, reaches good mixed effect, promotes the energy exchange for molecular motion, improves reaction efficiency.
Detailed Description
Referring to fig. 1 to 2 in combination, according to an embodiment of the present invention, a tower-type cavitation impinging stream reactor, please refer to fig. 1, includes a tower 1, a thrust structure 2, an anti-blocking structure 3, a feeding structure 4, and an air inlet pipe 5; a sedimentation region 6, an impact region 7, a filler mass transfer region 8 and a gas distribution region 9 are sequentially arranged in the inner cavity of the tower barrel 1 from top to bottom, wherein the thrust structure 2 and the gas inlet pipe 5 are both arranged in the gas distribution region 9, the anti-blocking structure 3 is arranged in the filler mass transfer region 8, and the feeding structure 4 is arranged in the impact region 7 and is used for conveying liquid, Fe and C powder into the impact region 7; the top of the tower barrel 1 is provided with a gas outlet 10, gas in the tower barrel 1 passes through the settling zone 6 and is discharged through the gas outlet 10, and the bottom of the tower barrel 1 is provided with a residual material outlet 11 for discharging residual materials; the thrust structure 2 comprises a liquid receiving plate 20, a guide piece 21, an elastic piece 22 and a support structure 23, the support structure 23 is connected with the inner side wall of the tower barrel 1 and is close to the excess material outlet 11, one end of the guide piece 21 is connected with the liquid receiving plate 20, the other end of the guide piece 21 is connected with the support structure 23, the elastic piece 22 is sleeved on the guide piece 21, so that air in the air inlet pipe 5 enters the tower barrel 1 and is adjusted to flow upwards through the elastic piece 22, and the air inlet pipe 5 is located above the liquid receiving plate 20; prevent stifled structure 3 and include first sharp form sieve screen 30, the sharp form sieve screen 31 of second and sieve screen pressure strip 32, first sharp form sieve screen 30 is connected with the inside wall of a tower section of thick bamboo 1, is provided with the globular filler of Fe, C on the first sharp form sieve screen 30, and sieve screen pressure strip 32 is placed on the globular filler of Fe, C, and the sharp form sieve screen 31 of second sets up on sieve screen pressure strip 32. Prevent through anti-blocking structure 3 that Fe, the globular filler of C from piling up on first sharp form sieve screen 30 and the sharp form sieve screen 31 of second, avoid taking place to pile up blocking phenomenon, the gas of the below of being convenient for simultaneously enters into in the striking zone 7. According to the invention, the gas in the gas inlet pipe 5 is rebounded by the elastic piece 22 on the liquid receiving plate 20 and then rises, enters the filler mass transfer area 8 through the first pointed sieve plate wire mesh 30, blows the Fe and C spherical filler in the filler mass transfer area 8, effectively prevents the problem of hardening formed by Fe and C accumulation, meanwhile, the gas continues to rise, blows the Fe and C powder in the impact area 7 through the second pointed sieve plate wire mesh 31, and effectively prevents the problem of hardening formed by Fe and C accumulation. Meanwhile, under the action of the elastic part 22, the gas rising speed is accelerated, the energy exchange is promoted, the molecular kinetic energy is increased, the reaction rate is improved, and meanwhile, the gas wall surface short circuit and the liquid layer short circuit are avoided, so that the reaction is more uniform. Meanwhile, the descending particles move upwards under the pressure of the gas, and the ascending gas and the descending liquid carry out mass and heat transfer on the surfaces of the Fe and C fillers, so that the reaction efficiency is improved.
Further, the tower 1 is a reactor, i.e. cylindrical in shape, vertically placed in the reaction environment.
Further, settlement zone 6 is used for separating gas and liquid after the reaction, impact zone 7 is used for the liquid and Fe, the C powder that are transmitted through feeding structure 4 reacts, filler mass transfer district 8 is used for placing Fe, the globular filler of C, accelerate the efficiency of reaction, gas distribution district 9 is used for discharging into the air, the air is discharged from the below of a tower section of thick bamboo 1, drive the air upward movement through thrust structure 2, the air that will discharge accelerates the ascending speed of air through thrust structure 2, not only accelerate the reaction, avoid Fe, C to pile up the phenomenon of hardening simultaneously.
Further, the liquid and gas are separated by passing the reacted gas and liquid through a wire mesh demister 12 in the settling zone 6, the settling zone 6 being configured to give time and space for the solids to settle. Falls to the bottom of the tower 1 under the action of self weight and is discharged through a residue outlet 11, and gas is discharged through a gas outlet 10 through a wire mesh demister 12. Wherein, the silk screen demister 12 is welded connection or threaded connection with the inside wall of tower section of thick bamboo 1, and specific connected mode is selected according to the reality, plays fixed firm and the effect of separation can.
Further, the diameter of the liquid receiving plate 20 is smaller than the diameter of the inner cavity of the tower barrel 1, the lower end of the tower barrel 1 is conical, namely, the thrust structure 2 is located in the conical inner cavity, namely, the liquid receiving plate 20 moves downwards, namely, the distance between the liquid receiving plate and the inner side wall of the tower barrel 1 is shorter, the problem of liquid layer short circuit is effectively avoided, and the control medium is discharged out of the tower barrel 1.
Furthermore, the centerlines of the liquid receiving plate 20, the guide member 21 and the support structure 23 and the centerline of the tower 1 are coincident with each other, wherein the elastic member 22 is a spring, and the specific type and magnitude of the spring are selected according to the actual application, and the invention is not limited further. The guide member 21 is a guide rod, i.e., is located in the vertical direction, and guides the liquid receiving plate 20.
Further, gas moves downwards after passing through the gas inlet pipe 5 and rebounds upwards after encountering the liquid receiving plate 20, enters the filler mass transfer area 8 and the settling area 6, is finally discharged from the gas outlet 10 at the top of the tower barrel 1, when the gas flow is large, the elastic part 22 is shortened, the liquid receiving plate 20 descends, otherwise, the gas rises, gas uniformly enters the reaction area, gas short circuit is avoided, meanwhile, the gap between the liquid receiving plate 20 and the lower end conical wall surface of the tower barrel 1 can be adjusted by adjusting the gas flow, the problem of liquid layer short circuit is effectively avoided, and the control medium is discharged out of the tower barrel 1.
Furthermore, the shape of the end of the air inlet pipe 5, which is located in the inner cavity of the tower barrel 1, is conical, so that the area of the air entering the tower barrel 1 is enlarged, and the air entering is accelerated. One end of the feeding pipe 5, which is positioned at the outer end of the tower barrel 1, is communicated with air or an air-entrapping device, so that air can be conveniently discharged.
Further, the shape and size of the first pointed sieve plate wire mesh 30 and the second pointed sieve plate wire mesh 31 are the same, and the size is the same as the size of the inner side wall of the tower barrel 1, so that the gas inside the tower barrel 1 can be conveniently circulated, and meanwhile, the blockage is avoided, and the gas blows Fe and C. The mesh pressing plate 32 is used for pressing the Fe and C spherical fillers by means of self gravity, and pressing the first pointed mesh 30, the second pointed mesh 31 and the mesh pressing plate 32 can be in threaded connection or welding connection, or can be placed on the mesh pressing plate, and a specific connection mode is selected according to actual use.
Feeding structure 4 includes two inlet pipes 40, two ball valves 41, toper Fe, C adds feed bin 42 and cavitation impinging stream nozzle 43, two inlet pipes 40 set up the both sides at tower section of thick bamboo 1, and one end penetrates tower section of thick bamboo 1 inner chamber, the other end of inlet pipe 40 is used for the air of discharging, cavitation impinging stream nozzle 43 is linked together with the inlet pipe 40 that is located tower section of thick bamboo 1 inner chamber, the inlet pipe 40 that is located the tower section of thick bamboo 1 outside sets up the shape pipe of returning, set up two ball valves 41 and toper Fe on the shape pipe of returning, C adds feed bin 42, and two ball valves 41 are located toper Fe, the both sides that C added feed bin 42. According to the invention, Fe and C powder is added into the conical Fe and C feeding bin 42, the ball valve 41 is opened, the Fe and C powder enters the inner cavity of the feeding pipe 40 through the circular pipe, meanwhile, air enters the feeding pipe 40, and the formed solid-liquid two-phase mixed medium enters the impact area 7 of the tower barrel 1 through the cavitation impact flow nozzle 43, so that a good mixing effect is achieved, and the reaction is fully carried out.
Further, two feeding pipes 40 are arranged on two sides of the tower barrel 1, and each feeding pipe 40 is provided with a ball valve 41, a conical Fe and C feeding bin 42, a round pipe and a cavitation impinging stream nozzle 43. And the cavitation impact flow nozzles 43 on the two sides spray out liquid and Fe and C powder mixture to accelerate the reaction.
Further, the model and the flow of two ball valves 41 are selected according to actual use, and two ball valves 41 are installed on the circle pipe, and the both ends of circle pipe all communicate with inlet pipe 40, and toper Fe, C add feed bin 42 and install on the circle pipe, but are located two ball valves 41 middle parts, improve the efficiency of feeding, make its fully reaction.
Furthermore, one end of the feeding pipe 40, which is located outside the tower barrel 1, is communicated with a liquid adding device, so that liquid can enter the feeding pipe 40.
The feeding pipe 40 comprises a first section, a second section and a third section, wherein the first section and the second section are positioned at the outer side of the tower barrel 1, the third section is positioned at the inner side of the tower barrel 1, the third section is connected with the cavitation impact flow nozzle 43, the diameter of the second section is smaller than that of the first section, that of the third section and that of the circular pipe with the shape of Chinese character 'hui', the first section and the second section are connected with the circular pipe with the shape of Chinese character 'hui', and the diameter of the circular pipe with the shape of Chinese character 'hui' is smaller than that of the first section and the third section of the feeding pipe 40. The diameters of the feeding pipes 40 are different, and the diameters of the original pipe in the shape of a Chinese character 'hui' and the feeding pipes 40 are different, so that the pressure difference in the pipes is realized during feeding, a good mixing effect can be achieved, and the reaction is fully performed.
Furthermore, the first section of the feeding pipe 40 is communicated with the liquid adding device and is communicated with one end of the square-shaped circular pipe, and the diameter of the second section is smaller than that of the first section and that of the third section, namely, the feeding pipe 40 is in a tapered and gradually-expanded shape as a whole. The other end of the square-shaped circular tube is communicated with the second section, and the third section is positioned in the inner cavity of the tower barrel 1 and is communicated with the cavitation impact flow nozzle 43.
Furthermore, the conical Fe and C feeding bin 42 is provided with hand holes for feeding materials conveniently, before Fe and C are added from the hand holes, the ball valves 41 on two sides are opened, the flow rate of the small-diameter circular tube in the reducing section is high, the pressure is low, when materials are introduced, due to the pressure difference between two ends of the small diameter of the circular tube, the added Fe and C enter the feeding tube 40 along with the materials, and the formed solid-liquid two-phase mixed medium enters the impact area 7 of the tower barrel 1 through the cavitation impact flow nozzle 43, so that a good mixing effect is achieved, and the reaction is fully performed.
Anti-blocking structure 3 still includes a plurality of support piece 33 and sieve screen mesh backup pad 34, and a plurality of support piece 33 evenly are connected with the inside wall of a tower section of thick bamboo 1, and sieve screen mesh backup pad 34 sets up on support piece 33, and first sharp form sieve screen 30 sets up on sieve screen mesh backup pad 34. The first pointed screen plate wire mesh 30 is supported and fixed through the supporting piece 33, and the effect of supporting and stabilizing is achieved.
Furthermore, the supporting members 33 are L-shaped angle plates and are connected with the inner side wall of the tower tube 1 by welding, wherein the number of the supporting members 33 is selected according to the actual situation, and the supporting and fixing effects are good.
Further, the screen plate wire mesh support plate 34 is placed on the support member 33, so that the screen plate wire mesh support plate is simple in structure and convenient to mount, and plays a role in fixing the first pointed screen plate wire mesh 30.
Further, the types of the first pointed sieve plate wire mesh 30 and the second pointed sieve plate wire mesh 31 and the sizes of the holes on the sieve plate are selected according to actual use. The effect of placing and blocking is good, and the phenomenon of accumulation and hardening of Fe and C is avoided.
Referring to fig. 2, the supporting structure 23 includes a circular plate 230 and three supporting legs 231, the circular plate 230 is connected to the three supporting legs 231, the three supporting legs 231 are connected to the inner sidewall of the tower 1, wherein the angle between adjacent supporting legs 231 is 120 °, and the guiding element 21 is connected to the circular plate 230. The liquid receiving plate 20 is supported by the support structure 23, so that the effect of stable support is achieved.
Further, the size of the disc 230 is smaller than that of the liquid receiving plate 20, and the disc 230 functions to support and mount the elastic member 22. Wherein, the diameter of the round hole on the disc is the same as the outer diameter of the guide piece 21, and the central lines are all overlapped.
Furthermore, the three supporting feet 231 are welded to the tapered inner side wall of the tower barrel 1, and the angle between adjacent supporting feet 231 is 120 degrees, so that the supporting and stabilizing effects are achieved.
Further, the guide member 21 is provided with a pin hole and a pin to prevent the guide member 21 from being separated from the disc 230, and the elastic member 22 is sleeved on the guide member 21, and the elastic member 22 is located between the disc 230 and the liquid receiving plate 20.
When the spiral screen plate type packing machine works, gas rebounds through the liquid receiving plate 20 and rises to enter the packing mass transfer area 8 through the first pointed screen plate wire mesh 30 on the screen plate wire mesh support plate 34, Fe and C deposited on the first pointed screen plate wire mesh 30 and the second pointed screen plate wire mesh 31 are blown by the gas, the Fe and C are effectively prevented from being accumulated to form hardening, meanwhile, falling particles move upwards under the action of gas pressure, and the rising gas and the falling liquid perform mass transfer and heat transfer on the surfaces of the Fe and C packing. The energy exchange is promoted, the molecular kinetic energy is increased, the reaction rate is improved, and meanwhile, the gas wall surface short circuit and the liquid layer short circuit are avoided, so that the reaction is more uniform.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.