CN114130182A - A desulfurization absorption tower oxidation wind conveyor for thermal power factory - Google Patents

Abstract

The invention discloses an oxidizing air conveying device of a desulfurization absorption tower for a thermal power plant, which comprises a desulfurization tower and a mixing device for oxygen positioned in the desulfurization tower, wherein the mixing device comprises a rotating support rod group and an output stirring assembly for oxygen sleeved on the rotating support rod group, the rotating support rod group comprises a rotating rod and a power motor, an output shaft of the power motor is connected with the lower end of the rotating rod, the power motor is arranged on the desulfurization tower, the output stirring assembly comprises a plurality of stirring mechanisms which are arranged in parallel and sleeved on the rotating rod and a conveying pipe for outputting oxygen, the upper end of the conveying pipe is connected with a reversing valve, the reversing valve is arranged at the upper end of the rotating rod, and the reversing valve is connected with an oxygen-increasing fan outside the desulfurization tower through a pipeline, so that the problem that the existing oxidizing air conveying mechanism in a slurry pool of the desulfurization tower cannot meet the requirements of a large amount of flue gas is solved, and the oxygen and the slurry tank can not be fully and rapidly mixed, thereby influencing the desulfurization effect.

Description

A desulfurization absorption tower oxidation wind conveyor for thermal power factory

Technical Field

The invention relates to the technical field of oxidized air conveying of a desulfurization absorption tower, in particular to an oxidized air conveying device of a desulfurization absorption tower for a thermal power plant.

Background

A thermal power plant, referred to as a thermal power plant, is a plant that produces electric energy using a combustible (e.g., coal) as a fuel. The basic production process is as follows: fuel adds hydrothermal steam generation when burning, chemical energy with fuel is changed into heat energy, steam pressure promotes the steam turbine rotation, heat energy conversion becomes mechanical energy, then the steam turbine drives the generator rotation, be changed into the electric energy with mechanical energy, at the thermal power factory during operation, flue gas because of the burning production need carry out desulfurization treatment through the desulfurizing tower, prevent that its flue gas from leading to the fact the pollution to the air, but the demand of a large amount of flue gas desulfurization can't be satisfied to oxidation wind conveying mechanism in the desulfurizing tower thick liquid pond now, and can not make oxygen and thick liquid pond abundant flash mixed, influence desulfurization effect, in order to solve this problem, the inventor has designed this scheme.

Disclosure of Invention

The invention aims to provide an oxidizing air conveying device of a desulfurization absorption tower for a thermal power plant, and aims to solve the problems that an existing oxidizing air conveying mechanism in a slurry pool of a desulfurization tower cannot meet the requirement of large-amount flue gas desulfurization, and cannot enable oxygen and the slurry pool to be fully and quickly mixed to influence the desulfurization effect.

The invention is realized by the following steps:

a desulfurization absorption tower oxidation wind conveying device for a thermal power plant comprises a desulfurization tower and a mixing device for oxygen in the desulfurization tower, wherein the mixing device comprises a rotating support rod group and an output stirring assembly for oxygen sleeved on the rotating support rod group, the rotating support rod group comprises a rotating rod and a power motor of which the output shaft is connected with the lower end of the rotating rod, the power motor is installed on the desulfurization tower, the output stirring assembly comprises a plurality of stirring mechanisms which are placed in parallel and sleeved on the rotating rod and a conveying pipe for outputting oxygen, the upper end of the conveying pipe is connected with a reversing valve, the reversing valve is installed at the upper end of the rotating rod and is connected with an oxygen-increasing fan outside the desulfurization tower through a pipeline, the stirring mechanism comprises an annular plate and a plurality of injection pipes which are uniformly installed outside the annular plate, the inside of the annular plate is provided with a cavity structure, and the injection pipes are communicated with the cavity structure of the annular plate, the lower end of the conveying pipe penetrates through the plurality of annular plates to realize oxygen conveying, the device is convenient for providing a device for fully mixing oxygen and slurry in a slurry pool of a desulfurization tower, the power motor rotates to drive the rotating rod to rotate, the injection pipe is further transferred to rotate and stir in the slurry to fully mix the oxygen and the slurry, meanwhile, the injection pipe, the conveying pipe and the reversing valve work to realize the purpose of filling oxygen to different parts in the slurry while stirring, the speed of oxygen diffusion in the slurry is improved, the existing mode that the oxygen can be mixed with the slurry only for a long time is changed, the working efficiency is improved, the problem of insufficient desulfurization caused by the fact that the oxygen is not uniformly mixed is avoided, and the reversing valve is convenient to be matched with the conveying pipe all the time to provide a channel for oxygen output through the work.

Further, the inside cavity structure that sets up of rotating rod, the slide opening has been seted up along its direction of height to the lateral wall of rotating rod, and the setting of cavity structure is convenient for provide the passageway for adjustment mechanism's installation and work and the lift of internal thread pipe to through the position of a plurality of rabbling mechanisms of adjustment mechanism work adjustment, the setting of slide opening is convenient for pass and remove for the even board of connecting internal thread pipe and annular slab and provides the passageway.

Furthermore, the rotating support rod group also comprises an adjusting mechanism positioned in the cavity of the rotating rod, the adjusting mechanism comprises a plurality of screws which are connected end to end and are vertically arranged, and a motor of which the output shaft is connected with the upper end of the uppermost screw, the lower ends of the screws are fixedly connected with discs, the lower side surfaces of the discs are vertically provided with polygonal slots, the upper ends of the screws are fixedly connected with polygonal insertion rods, adjacent screws are inserted into the polygonal slots through the polygonal insertion rods for connection, the plurality of screws are provided with threads with different screw pitches, the adjusting mechanism is arranged so that the position of the stirring mechanism can be adjusted according to the height of the slurry by the control work of a control system, so that the slurry and oxygen can be fully stirred by the stirring mechanism, the screws can be rotated under the driving of the motor to drive the annular plate to lift, the position of the stirring mechanism can be adjusted conveniently, and the discs can be arranged so as to resist against the inner side wall of the rotating rod, make the contact department of adjacent screw rod stably place, the setting that a plurality of screws have different pitch screw threads is convenient for make the rabbling mechanism of the different degree of depth remove not co-altitude in being located the thick liquid to make the thick liquid of the different degree of depth of a plurality of rabbling mechanism intensive mixing.

Further, set up the internal thread pipe in the annular slab, the internal thread pipe passes through linking board and annular slab fixed connection, and the annular slab cover is established on the rotating rod, and the internal thread pipe is located inside the rotating rod, and a plurality of internal thread pipes overlap respectively and establish on a plurality of screw rods.

Further, the conveyer pipe is made by elastic material, and conveyer pipe and annular plate contact department fixed connection, and the conveyer pipe is convenient for make the conveyer pipe take place to deform when rabbling mechanism removes by the setting that elastic material made, and it facilitates to go up and down for the rabbling mechanism.

Further, mixing arrangement still includes the mechanism of churning, the mechanism of churning includes the dwang, the cover is put a plurality of boards of churning on the dwang and is located the connecting plate at both ends about the dwang, the other end and the rotating rod of connecting plate are connected, the setting of the mechanism of churning is convenient for circulate each other through the thick liquid of its work messenger different degree of depth, and then with the mixing of the different degree of depth oxygen and thick liquid of rabbling mechanism cooperation acceleration, the setting of the board of churning is convenient for provide the passageway or block for the circulation of the different degree of depth thick liquid through its effect, realize the mixture of the thick liquid of the different degree of depth, the setting of connecting plate is convenient for make the dwang act on circular motion under the drive of rotating rod, so that different positions carry out the circulation stirring in the thick liquid.

Furthermore, the turnover plates are obliquely arranged, the adjacent turnover plates have opposite oblique directions, and the rotating rod extends out of the lower end of the connecting plate and is fixedly connected with a plurality of cylinders along the height direction.

Further, the ring channel has been seted up to the side on the bottom plate of desulfurizing tower, a plurality of recesses have been seted up to the ring channel medial surface along its direction of height, the lower extreme of dwang inserts in the ring channel, and the cylinder is connected with the recess meshing, the setting of ring channel is convenient for restrict the position of dwang, the setting of cylinder and recess is convenient for force it to take place the rotation when circular motion is made at the dwang through its cooperation work, and then the state of board is seeked in the adjustment, make its thick liquid and the oxygen of the different degree of depth of intensive mixing.

Further, mixing arrangement still includes the support that is located the switching-over valve upper end, and the outer end of support is connected with the lateral wall of desulfurizing tower.

Compared with the prior art, the invention has the beneficial effects that: the device is convenient for providing oxygen and fully mixing the slurry in the slurry pool of the desulfurizing tower, the rotating rod is driven to rotate by the rotation of the power motor, the injection pipe is further driven to rotate and stir in the slurry to fully mix the oxygen and the slurry, meanwhile, the oxygen is injected into different parts in the slurry while stirring through the work of the injection pipe, the conveying pipe and the reversing valve, the speed of oxygen diffusion in the slurry is improved, the existing mode that the oxygen can be mixed with the slurry for a long time is changed, the working efficiency is improved, the insufficient desulfurization caused by the uneven mixing of the oxygen is avoided, the position of the stirring mechanism is convenient to be adjusted by the control system according to the height of the slurry through the control work of the adjusting mechanism, so that the slurry and the oxygen are fully stirred by the stirring mechanism, the plurality of screw rods are provided with threads with different pitches, the stirring mechanisms positioned at different depths in the slurry can be moved at different heights, so that make the thick liquid of the different degree of depth of a plurality of rabbling mechanism intensive mixing, the setting of the mechanism of churning is convenient for circulate each other through the thick liquid that its work made the different degree of depth, and then with the rabbling mechanism cooperation accelerate the mixture of different degree of depth oxygen and thick liquid.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the base plate structure of the present invention;

FIG. 3 is a schematic structural view of a mixing device of the present invention;

FIG. 4 is a schematic view of the structure of the rotating support rod assembly of the present invention;

FIG. 5 is a schematic view of the adjustment mechanism of the present invention;

FIG. 6 is a schematic structural view of an output mixing assembly of the present invention;

FIG. 7 is a schematic structural view of an output tumble mechanism according to the present invention;

in the figure: 1. a desulfurizing tower; 2. a base plate; 21. an annular groove; 22. a groove; 3. a mixing device; 4. rotating the support rod set; 41. rotating the rod; 411. a power motor; 42. an adjustment mechanism; 421. a screw; 422. a disc; 423. a polygonal slot; 424. a polygonal inserted link; 425. a motor; 5. an output stirring assembly; 51. a stirring mechanism; 511. an annular plate; 512. an internally threaded tube; 513. an injection pipe; 52. a delivery pipe; 521. a diverter valve; 6. a tumbling mechanism; 61. rotating the rod; 62. a turning plate; 63. a cylinder; 64. a connecting plate; 7. and (4) a bracket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Example (b): referring to fig. 1-7: a desulfurization absorption tower oxidation air conveying device for a thermal power plant comprises a desulfurization tower 1 and a mixing device 3 for oxygen positioned in the desulfurization tower 1, wherein the mixing device 3 comprises a rotating support rod group 4 and an output stirring assembly 5 for oxygen sleeved on the rotating support rod group 4, the rotating support rod group 4 comprises a rotating rod 41 and a power motor 411 with an output shaft connected with the lower end of the rotating rod 41, the power motor 411 is installed on the desulfurization tower 1, a cavity structure is arranged in the rotating rod 41, a sliding hole is formed in the side wall of the rotating rod 41 along the height direction of the side wall, the rotating support rod group 4 further comprises an adjusting mechanism 42 positioned in the cavity of the rotating rod 41, the adjusting mechanism 42 comprises a plurality of screws 421 and motors 425, the screws 421 and the motors 425 are connected with the output shafts and the upper ends of the screws 421, the lower ends of the screws 421 are fixedly connected with discs 422, and polygonal slots 423 are vertically formed in the lower side surfaces of the discs 422, the upper end of the screw 421 is fixedly connected with a polygonal inserted link 424, adjacent screws 421 are inserted into a polygonal slot 423 through the polygonal inserted link 424 for connection, a plurality of screws 421 have threads with different thread pitches, the output stirring assembly 5 comprises a plurality of stirring mechanisms 51 which are placed in parallel and sleeved on the rotating rod 41 and a conveying pipe 52 for outputting oxygen, the upper end of the conveying pipe 52 is connected with a reversing valve 521, the reversing valve 521 is installed at the upper end of the rotating rod 41, the reversing valve 521 is connected with an oxygen increasing fan outside the desulfurizing tower 1 through a pipeline, the stirring mechanism 51 comprises an annular plate 511 and a plurality of injection pipes 513 which are uniformly installed outside the annular plate 511, the interior of the annular plate 511 is provided with a cavity structure, the injection pipes 513 are communicated with the cavity structure of the annular plate 511, the lower end of the conveying pipe 52 passes through the plurality of annular plates 511 to realize oxygen conveying, the conveying pipe 52 is made of an elastic material, and the contact part of the conveying pipe 52 and the annular plate 511 is fixedly connected, the mixing device 3 also comprises a churning mechanism 6, wherein the churning mechanism 6 comprises a rotating rod 61, a plurality of churning plates 62 sleeved on the rotating rod 61 and connecting plates 64 positioned at the upper end and the lower end of the rotating rod 61, the other end of the connecting plates 64 is connected with the rotating rod 41, the churning plates 62 are obliquely arranged, the adjacent churning plates 62 have opposite oblique directions, the lower end of the rotating rod 61 extending out of the connecting plates 64 is fixedly connected with a plurality of columns 63 along the height direction thereof, the upper side surface of the bottom plate 2 of the desulfurizing tower 1 is provided with an annular groove 21, the inner side surface of the annular groove 21 is provided with a plurality of grooves 22 along the height direction thereof, the lower end of the rotating rod 61 is inserted into the annular groove 21, and the column 63 is engaged with the groove 22, the mixing device 3 further comprises a bracket 7 positioned at the upper end of the reversing valve 521, and the outer end of the bracket 7 is connected with the side wall of the desulfurizing tower 1.

The device provided by the invention is convenient for providing oxygen and fully mixing the slurry in the slurry pool of the desulfurizing tower 1, the rotating rod 41 is driven to rotate by the rotation of the power motor 411, the injection pipe 513 is further called to rotate and stir in the slurry to fully mix the oxygen and the slurry, meanwhile, the injection pipe 513, the conveying pipe 52 and the reversing valve 521 work to realize the purpose of filling oxygen into different parts in the slurry while stirring, so that the diffusion rate of the oxygen in the slurry is improved, the existing mode that the oxygen can be mixed with the slurry for a long time is changed, the working efficiency is improved, the insufficient desulfurization caused by the uneven oxygen mixing is avoided, and the reversing valve 521 is arranged to be always matched with the conveying pipe 52 through the work to provide a channel for oxygen output.

The arrangement of the cavity structure is convenient for providing a passage for the installation and the work of the adjusting mechanism 42 and the lifting of the internally threaded pipe 512, so that the positions of the plurality of stirring mechanisms 51 can be adjusted by the work of the adjusting mechanism 42, and the arrangement of the sliding hole is convenient for providing a passage for the connection plate connecting the internally threaded pipe 512 and the annular plate 511 to pass through and move.

Adjustment mechanism 42's setting is convenient for by control system control work according to the position of thick liquid altitude mixture control rabbling mechanism 51, so that fully stir thick liquid and oxygen through rabbling mechanism 51, the setting of screw rod 421 is convenient for rotate and then drive annular plate 511 and go up and down under the drive at motor 425, position for adjustment rabbling mechanism 51 facilitates, disc 422's setting is convenient for keep out swing rod 41 inside wall, the contact department that makes adjacent screw rod 421 stably places, the setting that a plurality of screw rods 421 have different pitch screw threads is convenient for make the rabbling mechanism 51 that is located the different degree of depth in the thick liquid remove different height, so that make the thick liquid of the different degree of depth of fully stirring of a plurality of rabbling mechanism 51.

The arrangement of the delivery pipe 52 made of an elastic material facilitates deformation of the delivery pipe 52 when the stirring mechanism 51 moves, and facilitates lifting and lowering of the stirring mechanism 51.

The setting of the boiling over mechanism 6 is convenient for circulate each other through the thick liquid of its work messenger different degree of depth, and then cooperates with rabbling mechanism 51 with higher speed the mixture of different degree of depth oxygen and thick liquid, and the setting of the boiling over board 62 is convenient for provide the passageway or block for the circulation of different degree of depth thick liquid through its effect, realizes the mixture of the thick liquid of the different degree of depth, and the setting of connecting plate 64 is convenient for make dwang 61 effect circular motion under the drive of rotating rod 41 to different positions carry out the circulation stirring in to the thick liquid.

The annular groove 21 is convenient for limit the position of the rotating rod 61, the column body 63 and the groove 22 are convenient for forcing the rotating rod 61 to rotate when doing circular motion through the matching work of the column body and the groove, and further the state of the billowing plate 62 is adjusted, so that the column body and the groove can fully stir serous fluid and oxygen with different depths.

During the use, pass through adjustment mechanism 42's work adjustment rabbling mechanism 51's height according to the degree of depth of thick liquid, will drive the rotation pole 41 by the work of driving motor 411 again and rotate, and then transfer rabbling mechanism 51 in the thick liquid rotation, in oxygen inputed the thick liquid from injection pipe 513 simultaneously, realize the intensive mixing of thick liquid and oxygen, drive the mechanism of billowing 6 and do circular motion under the rotation of rotation pole 41 simultaneously, make the thick liquid and the oxygen intensive mixing of the different degree of depth through the effect of billowing board 62.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. a desulfurization absorption tower oxidizing wind conveying device for thermal power plant, comprising a desulfurization tower (1), characterized in that: also comprising a mixing device (3) for oxygen in the desulfurization tower (1), the mixing The device (3) includes a rotary support rod group (4) and an oxygen output stirring assembly (5) sleeved on the rotary support rod group (4), and the rotary support rod group (4) includes a rotary rod (41) and a power motor (411) connected with the output shaft and the lower end of the rotating rod (41), the power motor (411) is installed on the desulfurization tower (1), and the output stirring assembly (5) includes a plurality of parallel A stirring mechanism (51) placed and sleeved on the rotating rod (41) and a delivery pipe (52) for outputting oxygen, the upper end of the delivery pipe (52) is connected with the reversing valve (521), the The reversing valve (521) is installed on the upper end of the rotating rod (41), and the reversing valve (521) is connected to the aerator fan outside the desulfurization tower (1) through a pipeline, and the stirring mechanism (51) comprises a ring-shaped A plate (511) and a plurality of injection pipes (513) evenly mounted on the outside of the annular plate (511), the annular plate (511) is internally provided with a cavity structure, and the injection pipes (513) are connected to the annular plate (511) ) are communicated with each other in cavity structure, and the lower end of the delivery pipe (52) passes through a plurality of annular plates (511) to realize the delivery of oxygen. 2 . The oxidizing wind conveying device for desulfurization absorption tower of thermal power plant according to claim 1 , wherein the rotating rod ( 41 ) is internally provided with a cavity structure, and the rotating rod ( 41 ) The side wall of 41) is provided with sliding holes along its height direction. 3 . The oxidizing wind conveying device for desulfurization absorption tower of a thermal power plant according to claim 2 , wherein the rotating support rod group ( 4 ) further comprises a cavity located in the rotating rod ( 41 ). 4 . An adjustment mechanism (42) inside, the adjustment mechanism (42) includes a plurality of screw rods (421) connected end to end and placed vertically and a motor (425) whose output shaft is connected to the upper end of the uppermost screw rod (421). A disc (422) is fixedly connected to the lower end of (421), and a polygonal slot (423) is vertically opened on the lower side of the disc (422), and a polygonal insertion rod (423) is fixedly connected to the upper end of the screw (421). 424), the adjacent screw rods (421) are connected by inserting a polygonal insert rod (424) into the polygonal slot (423), and the plurality of screw rods (421) have threads with different pitches. The oxidizing air conveying device for desulfurization absorption tower of a thermal power plant according to claim 3, characterized in that, an inner threaded pipe (512) is arranged in the annular plate (511), and the inner threaded pipe (512) is fixedly connected with the annular plate (511) through the connecting plate, the annular plate (511) is sleeved on the rotating rod (41), and the inner threaded pipe (512) is located inside the rotating rod (41) , a plurality of the inner thread pipes (512) are respectively sleeved on the plurality of screws (421). The oxidizing wind conveying device for desulfurization absorption tower of a thermal power plant according to claim 4, characterized in that, the conveying pipe (52) is made of elastic material, and the conveying pipe (52) Fixed connection with the ring plate (511). 6 . The oxidizing wind conveying device for desulfurization absorption tower of a thermal power plant according to claim 5 , wherein the mixing device ( 3 ) further comprises a churning mechanism ( 6 ), and the churning mechanism ( 6 ) ) comprises a rotating rod (61), a plurality of flipping plates (62) sleeved on the rotating rod (61), and connecting plates (64) located at the upper and lower ends of the rotating rod (61), and the other connecting plates (64) One end is connected with the rotating rod (41). 7 . The oxidizing wind conveying device for desulfurization absorption tower of a thermal power plant according to claim 6 , wherein the churning plate ( 62 ) is placed obliquely, and the adjacent churning boards ( 62 ) have opposite The lower end of the rotating rod (61) protruding from the connecting plate (64) is fixedly connected with a plurality of cylinders (63) along its height direction. 8 . The oxidizing wind conveying device for desulfurization absorption tower of a thermal power plant according to claim 7 , wherein an annular groove ( 21 ) is provided on the upper side of the bottom plate ( 2 ) of the desulfurization tower ( 1 ). , the inner surface of the annular groove (21) is provided with a plurality of grooves (22) along its height direction, the lower end of the rotating rod (61) is inserted into the annular groove (21), and the cylinder (63) and the The groove (22) is engaged and connected. 9 . The oxidizing wind conveying device for desulfurization absorption tower of a thermal power plant according to claim 8 , wherein the mixing device (3) further comprises a bracket (7) located at the upper end of the reversing valve (521). 10 . ), the outer end of the bracket (7) is connected with the side wall of the desulfurization tower (1).

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