CN112316505A

CN112316505A - Secondary purification and filtration device of desulfurization and denitrification tower

Info

Publication number: CN112316505A
Application number: CN202011197546.2A
Authority: CN
Inventors: 刘美琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-02-05

Abstract

The invention relates to the field of filtering devices, in particular to a secondary purification and filtration device for a desulfurization and denitrification tower, which comprises a base, a filtration structure, a collection structure, an extrusion structure, an adjustment structure and a driving structure, wherein the filtration structure is arranged to filter calcium sulfate slurry obtained after waste gas treatment of the desulfurization and denitrification tower so as to obtain industrial raw material calcium sulfate and waste liquid, the collection structure is arranged to separately collect slurry filtered by the filtration structure and calcium sulfate solid, the extrusion structure is arranged so that the calcium sulfate slurry can be properly extruded when being filtered, the filtration is accelerated in a pressurization mode so as to avoid the problem that the calcium sulfate slurry is high in concentration and slow in filtration, and the adjustment structure is arranged so that the filtered calcium sulfate solid can be automatically discharged after the calcium sulfate slurry is filtered, through the arrangement of the driving structure, the adjusting structure can move, so that the whole device runs periodically.

Description

Secondary purification and filtration device of desulfurization and denitrification tower

Technical Field

The invention relates to the field of filtering devices, in particular to a secondary purification and filtering device of a desulfurization and denitrification tower.

Background

The desulfurization and denitrification tower is an environment-friendly device, mainly treat sulfur dioxide and nitrogen oxide that contain in tail gas such as boiler, kiln, can reduce its emission, alleviate environmental pollution's equipment, when handling tail gas, discharge tail gas into the desulfurization and denitrification tower, spray calcium carbonate thick liquid in the desulfurization and denitrification tower afterwards, then sulfur dioxide can become calcium sulfite through the reaction, calcium sulfite can become the calcium sulfate through the oxidation, consequently the sulfur dioxide of being handled can finally turn into the thick liquid mixture that uses calcium sulfate as the main part, and the final gas that discharges to atmosphere of desulfurization and denitrification tower is then mainly pollution-free gas.

However, since the sulfur dioxide is reacted and converted in the desulfurization and denitrification tower to form calcium sulfate slurry, the calcium sulfate is an insoluble substance, and the calcium sulfate is a common chemical raw material, but the calcium sulfate is mixed with the slurry and cannot be directly used, a device is needed to treat the calcium sulfate slurry generated in the desulfurization and denitrification tower so as to extract the calcium sulfate therein.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a secondary purification and filtration device of a desulfurization and denitrification tower.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a SOx/NOx control tower secondary purifies filter equipment, includes base, filtration, collects structure, extrusion structure, adjusts structure and drive structure for support whole device be connected with on the base and be used for carrying out filterable to the calcium sulfate thick liquid that obtains after the SOx/NOx control tower treatment waste gas the filtration, be connected with on the base can be right the product that obtains after the filtration is accomplished to the filtration collects the structure, be connected with on the filtration can improve filtration efficiency the extrusion structure, be connected with on the base and control the filtration with the extrusion structure carries out the complex adjust the structure, be connected with on the base and control adjust the structure motion the drive structure.

Specifically, filtration includes box, feed liquor pipe, screw, pipe, filter screen, horizontal pole and rubber circle, fixedly connected with on the base the box, one side fixedly connected with of box the feed liquor pipe, the bottom of box has been seted up the screw, the inside threaded connection of screw has the pipe, fixedly connected with on the inner wall of pipe the filter screen, fixedly connected with on the pipe the horizontal pole, fixedly connected with on the inner wall of screw the rubber circle.

Specifically, collect the structure and include spout, outer slide, interior slide, handle, first cylinder body and second cylinder body, seted up one side of base the spout, the inside sliding connection of spout has outer slide, the inside sliding connection of outer slide has interior slide, fixedly connected with on the interior slide the handle, the inside of base is equipped with first cylinder body with the second cylinder body, the second cylinder body is located the bottom of filter screen.

Specifically, the extrusion structure comprises a top plate, a through hole, a sliding seat, a pressing plate, a fixed plate, a spring, a connecting rod, a baffle plate and a movable hole, the top end of the box body is connected with the top plate in a sliding manner, the through hole is formed in the top plate, the sliding seat is connected with the inner wall of the box body in a sliding manner, the top of the sliding seat is an inclined plane, the bottom of the sliding seat is connected with the pressing plate in a sliding manner, the sliding seat is of a hollow structure, the fixed plate is fixedly connected to the inner wall of the sliding seat, one end of the spring is fixedly connected to the bottom of the fixed plate, the other end of the spring is fixedly connected with the pressing plate, the connecting rod is fixedly connected to the sliding seat, the movable hole is formed in one side of the box body close to the connecting rod, the connecting rod is connected, the baffle is connected to the side of the box body in a sliding mode, and the width of the baffle is larger than that of the movable hole.

It is specific, adjust the structure and include fixing base, first carousel, second carousel, spliced pole, dead lever, pivot, fixed cover, slide bar and bottom plate, fixedly connected with on the base the fixing base, it is connected with to rotate on the fixing base the pivot, the both ends difference fixedly connected with of pivot first carousel with the second carousel, the bottom sliding connection of box has the bottom plate, the bottom plate with fixedly connected with between the roof the spliced pole, fixedly connected with on the first carousel the dead lever, it is connected with to rotate on the second carousel fixed cover, the inside sliding connection of fixed cover has the slide bar, the slide bar with connecting rod fixed connection.

Specifically, the drive structure includes motor, bull stick, worm and worm wheel, fixedly connected with on the fixing base the motor, fixedly connected with on the motor the bull stick, fixedly connected with on the bull stick the worm, fixedly connected with in the pivot the worm wheel, the worm with the worm wheel meshes mutually.

The invention has the beneficial effects that:

(1) according to the secondary purification and filtration device for the desulfurization and denitrification tower, the calcium sulfate slurry obtained after the desulfurization and denitrification tower processes waste gas is filtered through the arrangement of the filtration structure, so that industrial raw materials of calcium sulfate and waste liquid are obtained, namely, the calcium sulfate slurry obtained after the desulfurization and denitrification tower processes waste gas is directly introduced into the liquid inlet pipe and enters the box body through the liquid inlet pipe, then the slurry can be filtered through the filter screen arranged on the circular pipe, the filtered slurry is discharged to the lower part through the filter screen, calcium sulfate solid is retained above the filter screen, the circular pipe is provided with the cross rod, so that the circular pipe is spirally arranged in the screw hole conveniently, and the rubber ring can be abutted against the circular pipe, so that liquid cannot leak at the edge of the circular pipe; through the setting of collecting the structure, make by filterable thick liquid of filtration and calcium sulfate solid can be separately collected, can slide the interior slide through the control handle promptly, thereby it slides to drive outer slide, thereby open the opening that is located on the base, inside first cylinder body and the second cylinder body of being equipped with of base, the second cylinder body is located the below of filter screen, consequently can direct seepage to the second cylinder body and be collected through the thick liquid that the filter screen filtered out, and stay the calcium sulfate solid on the filter screen, can discharge from the side opening part of box, thereby be collected by first cylinder body.

(2) The invention relates to a secondary purification and filtration device of a desulfurization and denitrification tower, which can ensure that calcium sulfate slurry can be properly extruded when being filtered by arranging an extrusion structure, and the filtration is accelerated by pressurizing, so as to avoid the problem that the calcium sulfate slurry is high in concentration and slow in filtration, namely, a sliding seat can move up and down in a box body, a liquid inlet pipe can be blocked when the sliding seat moves down, then the slurry above a filter screen is extruded, the liquid in the slurry can be accelerated to pass through the filter screen by pressure, a pressing plate is arranged at the bottom of the sliding seat and is connected with a fixed plate by a spring, so that when the sliding seat extrudes the slurry, the pressure can be properly reduced by the pressing plate in a manner of extruding the spring, the phenomenon that the slurry is subjected to overlarge pressure by the downward sliding of the sliding seat so as to extrude the filter screen and the sliding seat finishes the extrusion, and the slurry is poured into the box body continuously after the slurry inlet pipe is not blocked by the sliding seat.

(3) The invention relates to a secondary purification and filtration device of a desulfurization and denitrification tower, which can automatically discharge filtered calcium sulfate solid after the calcium sulfate slurry is filtered by the arrangement of an adjusting structure, namely, a first turntable and a second turntable are respectively and fixedly connected with two ends of a rotating shaft, so that the first turntable and the second turntable can synchronously rotate, a fixed sleeve is rotatably connected on the second turntable, the fixed sleeve is slidably connected with a slide bar, and the slide bar is fixedly connected with a connecting rod, so that when the second turntable rotates, the fixed sleeve, the slide bar and the connecting rod can be driven to move up and down and slide up and down along with the slide bar sliding in the fixed sleeve, a slide seat can be driven to slide up and down by the vertical sliding of the connecting rod, a movable hole for the sliding of the connecting rod is arranged on a box body, and a baffle is fixedly connected on the connecting rod, so that the baffle can ensure that in, the movable hole can be always blocked, so that liquid cannot leak, when the first rotary table and the second rotary table rotate, the fixed rod can be continuously driven to rotate, when the sliding seat slides upwards, the top end of the sliding seat can be inclined to be in contact with the inner wall of the through hole, so that when the sliding seat slides upwards, the top plate can be continuously driven to slide, the connecting column can be driven to move while the top plate slides, the connecting column can also be driven to slide, when the bottom plate slides, the calcium sulfate solid in the box body can be pushed out of the box body and then falls into the first cylinder body, so that the sliding seat slides downwards to extrude slurry for filtering, when the sliding seat slides upwards, the bottom plate discharges the calcium sulfate solid from the box body, the position of the fixed rod on the first rotary table is ninety degrees different from the position of the fixed sleeve on the second rotary table, namely the two rotary tables rotate by a quarter period, so that the first rotary table and the second, in the first stage, the fixed sleeve rises from the middle position and drives the sliding seat to rise, in the process, the top plate and the bottom plate move leftwards to drive calcium sulfate to be discharged to the first cylinder body, the fixed rod moves from the direction of six points to the direction of nine points and is not functional, in the second stage, the fixed sleeve drives the sliding seat to slide from the highest position to the middle position, the top plate and the bottom plate are positioned at the leftmost side at the moment, the fixed rod moves from the direction of nine points to the direction of twelve points to drive the connecting column to move from the left side to the middle position and drive the top plate and the bottom plate to move to the middle position, in the third stage, the sliding seat moves downwards from the middle to extrude and filter, the fixed rod moves from the direction of twelve points to the direction of three points to continuously drive the connecting column to move rightwards to finally drive the top plate and the bottom plate to move to the rightmost side and return to, and the dead lever moves to six point directions from three point directions this moment, and roof and bottom plate are motionless, then constantly repeats above-mentioned process afterwards, constantly extrudees earlier promptly and filters, arranges calcium sulfate to first cylinder body again.

(4) According to the secondary purification and filtration device for the desulfurization and denitrification tower, the adjusting structure can move through the arrangement of the driving structure, so that the whole device can run periodically, namely, after the motor is electrically connected with an external power supply, the motor is started, the output shaft of the motor rotates to drive the rotating rod to rotate, the rotating rod drives the worm to rotate, the worm gear is driven to rotate, the worm gear rotates to drive the rotating shaft to rotate, and therefore the first rotating disc and the second rotating disc rotate, and the device runs periodically.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of an overall structure of a preferred embodiment of a secondary purification and filtration apparatus of a desulfurization and denitrification tower provided by the present invention;

FIG. 2 is a schematic view of the connection of the filter structure to the collection structure shown in FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic view of the connection structure of the base and the collecting structure shown in FIG. 1;

FIG. 5 is an enlarged view of the part A shown in FIG. 2;

FIG. 6 is an exploded view of the coupling structure of the rotating shaft and the driving structure shown in FIG. 2;

FIG. 7 is an exploded view of the connection structure of the sliding seat and the second turntable shown in FIG. 2;

fig. 8 is an exploded view of the connecting structure of the connecting rod and the barrier shown in fig. 2.

In the figure: 1. the device comprises a base, 2, a filtering structure, 21, a box body, 22, a liquid inlet pipe, 23, a screw hole, 24, a round pipe, 25, a filter screen, 26, a cross rod, 27, a rubber ring, 3, a collecting structure, 31, a sliding chute, 32, an outer sliding plate, 33, an inner sliding plate, 34, a handle, 35, a first cylinder body, 36, a second cylinder body, 4, an extrusion structure, 41, a top plate, 42, a through hole, 43, a sliding seat, 44, a pressing plate, 45, a fixing plate, 46, a spring, 47, a connecting rod, 48, a baffle, 49, a movable hole, 5, an adjusting structure, 51, a fixing seat, 52, a first rotating disk, 53, a second rotating disk, 54, a connecting column, 55, a fixing rod, 56, a rotating shaft, 57, a fixing sleeve, 58, a sliding rod, 59, a bottom plate, 6, a driving structure, 61, a motor, 62, a.

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 FIGS. 1 to 8, the secondary purification and filtration device of a desulfurization and denitrification tower comprises a base 1, a filtration structure 2, a collection structure 3, an extrusion structure 4, an adjustment structure 5 and a driving structure 6, the base 1 for supporting the whole device is connected with the filtering structure 2 for filtering calcium sulfate slurry obtained after the desulfurization and denitrification tower processes waste gas, the base 1 is connected with the collecting structure 3 which can collect the product obtained after the filtering structure 2 finishes filtering, the filtering structure 2 is connected with the extruding structure 4 capable of improving the filtering efficiency, the base 1 is connected with the adjusting structure 5 capable of controlling the matching of the filtering structure 2 and the extruding structure 4, the base 1 is connected with the driving structure 6 which can control the movement of the adjusting structure 5.

Specifically, the filtering structure 2 includes a box body 21, a liquid inlet pipe 22, a screw hole 23, a round pipe 24, a filter screen 25, a cross rod 26 and a rubber ring 27, the box body 21 is fixedly connected to the base 1, the liquid inlet pipe 22 is fixedly connected to one side of the box body 21, the screw hole 23 is formed in the bottom of the box body 21, the round pipe 24 is in threaded connection with the screw hole 23, the filter screen 25 is fixedly connected to the inner wall of the round pipe 24, the cross rod 26 is fixedly connected to the round pipe 24, the rubber ring 27 is fixedly connected to the inner wall of the screw hole 23, calcium sulfate slurry obtained after waste gas treatment of the desulfurization and denitrification tower is directly introduced into the liquid inlet pipe 22 and enters the box body 21 through the liquid inlet pipe 22, then the slurry can be filtered through the filter screen 25 installed on the round pipe 24, the filtered slurry is discharged to the lower side through the filter screen 25, and, the cross bar 26 is installed on the circular tube 24 for the convenience of spirally installing the circular tube 24 in the screw hole 23, and the rubber ring 27 can be abutted against the circular tube 24, so that liquid cannot leak at the edge of the circular tube 24.

Specifically, the collecting structure 3 includes a chute 31, an outer sliding plate 32, an inner sliding plate 33, a handle 34, a first cylinder 35 and a second cylinder 36, the chute 31 is opened at one side of the base 1, the outer sliding plate 32 is slidably connected to the inside of the chute 31, the inner sliding plate 33 is slidably connected to the inside of the outer sliding plate 32, the handle 34 is fixedly connected to the inner sliding plate 33, the first cylinder 35 and the second cylinder 36 are arranged inside the base 1, the second cylinder 36 is located at the bottom of the filter screen 25, the inner sliding plate 33 can be slid by controlling the handle 34, so as to drive the outer sliding plate 32 to slide, thereby opening the opening on the base 1, the first cylinder 35 and the second cylinder 36 are arranged inside the base 1, and the second cylinder 36 is located below the filter screen 25, so that the slurry filtered by the filter screen 25 can directly leak into the second cylinder 36 and be collected, the calcium sulphate solids remaining on the sieve 25 can be discharged through the lateral opening of the tank 21 and collected by the first cylinder 35.

Specifically, the extrusion structure 4 includes a top plate 41, a through hole 42, a sliding seat 43, a pressing plate 44, a fixing plate 45, a spring 46, a connecting rod 47, a baffle plate 48 and a movable hole 49, the top end of the box body 21 is slidably connected with the top plate 41, the through hole 42 is formed in the top plate 41, the sliding seat 43 is slidably connected to the inner wall of the box body 21, the top of the sliding seat 43 is an inclined surface, the bottom of the sliding seat 43 is slidably connected with the pressing plate 44, the sliding seat 43 is of a hollow structure, the fixing plate 45 is fixedly connected to the inner wall of the sliding seat 43, the bottom of the fixing plate 45 is fixedly connected with one end of the spring 46, the other end of the spring 46 is fixedly connected with the pressing plate 44, the connecting rod 47 is fixedly connected to the sliding seat 43, and the movable hole 49 is formed in one side of the box body 21 close to, the connecting rod 47 is slidably connected inside the movable hole 49, the baffle 48 is fixedly connected on the connecting rod 47, the baffle 48 is slidably connected on the side surface of the box body 21, the width of the baffle 48 is larger than that of the movable hole 49, the sliding seat 43 can move up and down inside the box body 21, the liquid inlet pipe 22 can be blocked in the downward movement process of the sliding seat 43, then the slurry above the filter screen 25 is extruded, the liquid in the slurry can be accelerated to pass through the filter screen 25 by pressure, the pressing plate 44 is installed at the bottom of the sliding seat 43 and is connected with the fixing plate 45 by the spring 46, so that when the sliding seat 43 extrudes the slurry, the pressure can be properly reduced by the way that the spring 46 is extruded by the pressing plate 44, the phenomenon that the slurry is subjected to overlarge pressure due to the downward sliding of the sliding seat 43 is avoided, the filter screen 25 is extruded, and the sliding seat 43 finishes extrusion, and slides upwards, then the liquid inlet pipe 22 is not blocked by the sliding seat 43, and the slurry is continuously poured into the box body 21.

Specifically, the adjusting structure 5 includes a fixed seat 51, a first rotating disk 52, a second rotating disk 53, a connecting column 54, a fixing rod 55, a rotating shaft 56, a fixed sleeve 57, a sliding rod 58 and a bottom plate 59, the fixed seat 51 is fixedly connected to the base 1, the rotating shaft 56 is rotatably connected to the fixed seat 51, two ends of the rotating shaft 56 are respectively fixedly connected to the first rotating disk 52 and the second rotating disk 53, the bottom end of the box 21 is slidably connected to the bottom plate 59, the connecting column 54 is fixedly connected between the bottom plate 59 and the top plate 41, the fixing rod 55 is fixedly connected to the first rotating disk 52, the fixed sleeve 57 is rotatably connected to the second rotating disk 53, the sliding rod 58 is slidably connected to the inside of the fixed sleeve 57, the sliding rod 58 is fixedly connected to the connecting rod 47, and the first rotating disk 52 and the second rotating disk 53 are respectively fixedly connected to two ends of the rotating shaft 56, therefore, the first rotating disc 52 and the second rotating disc 53 can rotate synchronously, because the second rotating disc 53 is rotatably connected with the fixed sleeve 57, the fixed sleeve 57 is slidably connected with the sliding rod 58, the sliding rod 58 is fixedly connected with the connecting rod 47, when the second rotating disc 53 rotates, the fixed sleeve 57, the sliding rod 58 and the connecting rod 47 can be driven to move up and down along with the sliding of the sliding rod 58 in the fixed sleeve 57, the connecting rod 47 can be driven to slide up and down along with the sliding of the sliding rod 47, the box body 21 is provided with the movable hole 49 for sliding the connecting rod 47, the connecting rod 47 is fixedly connected with the baffle 48, the baffle 48 can ensure that the movable hole 49 can be always blocked in the sliding process of the connecting rod 47, so that liquid cannot leak, when the first rotating disc 52 rotates with the second rotating disc 53, the fixed rod 55 can be continuously driven to rotate, when the sliding seat 43 slides upwards, because the top end of the sliding seat, when the sliding seat 43 slides upwards, the top plate 41 is continuously driven to slide, the connecting column 54 is driven to move while the top plate 41 slides, the connecting column 54 drives the bottom plate 59 to slide, when the bottom plate 59 slides, the calcium sulfate solid in the box body 21 can be pushed out of the box body 21 and then falls into the first cylinder body 35, so that the sliding seat 43 slides downwards to extrude slurry for filtering, when the sliding seat 43 slides upwards, the bottom plate 59 discharges the calcium sulfate solid from the box body 21, the position of the fixing rod 55 on the first rotating disc 52 is different from the position of the fixing sleeve 57 on the second rotating disc 53 by ninety degrees, namely, the rotation of the two is different by a quarter cycle, so that the rotation of the first rotating disc 52 and the second rotating disc 53 is divided into four stages, in the first stage, the fixing sleeve 57 ascends from the middle position and drives the sliding seat 43 to ascend, the top plate 41 and the bottom plate 59 move leftwards to drive the calcium sulfate to be discharged to the first cylinder body 35, the fixing rod 55 moves from six-point direction to nine-point direction without effect, in the second stage, the fixing sleeve 57 drives the sliding seat 43 to slide from the highest position to the middle position, the top plate 41 and the bottom plate 59 are positioned at the leftmost side at the moment, the fixing rod 55 moves from nine-point direction to twelve-point direction to drive the connecting column 54 to move from left side to the middle position and drive the top plate 41 and the bottom plate 59 to move to the middle position, in the third stage, the sliding seat 43 moves downwards from the middle to perform extrusion filtration, the fixing rod 55 moves from twelve-point direction to three-point direction to continue driving the connecting column 54 to move rightwards, finally the top plate 41 and the bottom plate 59 are driven to move rightmost side to return to the initial position, in the fourth stage, the fixing sleeve 57 drives the sliding seat 43 to slide from the lowest position to the middle, the top plate 41 and the bottom plate 59 are stationary and the process is repeated, i.e. the first squeeze filtration and the discharge of calcium sulphate to the first cylinder 35.

Specifically, drive structure 6 includes motor 61, bull stick 62, worm 63 and worm wheel 64, fixedly connected with on the fixing base 51 motor 61, fixedly connected with on the motor 61 bull stick 62, fixedly connected with on the bull stick 62 worm 63, fixedly connected with on the pivot 56 worm wheel 64, worm 63 with worm wheel 64 meshes mutually, with motor 61 and external power source electric connection back, opens motor 61, and the output shaft of motor 61 rotates and drives bull stick 62 and rotate, and bull stick 62 drives worm 63 and rotates, and then drives worm wheel 64 and rotate, and worm wheel 64 rotates then drives pivot 56 and rotate to make first carousel 52 and second carousel 53 rotate, make the device periodic operation.

When the device is used, firstly, calcium sulfate slurry obtained after waste gas treatment of a desulfurization and denitrification tower is directly introduced into the liquid inlet pipe 22 and enters the box body 21 through the liquid inlet pipe 22, then the slurry can be filtered through the filter screen 25 arranged on the circular pipe 24, the filtered slurry is discharged to the lower part through the filter screen 25, calcium sulfate solid is retained above the filter screen 25, and the circular pipe 24 is provided with the cross rod 26, so that the circular pipe 24 is conveniently and spirally arranged in the screw hole 23, and the rubber ring 27 can be abutted against the circular pipe 24, so that liquid cannot leak at the edge of the circular pipe 24; the inner sliding plate 33 can be slid by the control handle 34, so that the outer sliding plate 32 is driven to slide, and the opening on the base 1 is opened, the first cylinder 35 and the second cylinder 36 are arranged inside the base 1, the second cylinder 36 is positioned below the filter screen 25, so that the slurry filtered by the filter screen 25 can directly leak into the second cylinder 36 to be collected, and the calcium sulfate solid remained on the filter screen 25 can be discharged from the side opening of the box body 21 to be collected by the first cylinder 35; the sliding seat 43 can move up and down in the box body 21, the sliding seat 43 can block the liquid inlet pipe 22 in the downward movement process, then the slurry above the filter screen 25 is extruded, the liquid in the slurry can be accelerated to pass through the filter screen 25 by pressure, the pressure plate 44 is installed at the bottom of the sliding seat 43, and the pressure plate 44 is connected with the fixed plate 45 by the spring 46, so that when the sliding seat 43 extrudes the slurry, the pressure can be properly reduced by the way that the spring 46 is extruded by the pressure plate 44, the phenomenon that the slurry is subjected to overlarge pressure due to the downward sliding of the sliding seat 43 is avoided, the filter screen 25 is extruded and damaged, after the sliding seat 43 finishes the extrusion, the sliding seat slides upwards, then the liquid inlet pipe 22 is not blocked by the sliding seat 43, and the slurry is continuously poured; the first rotating disc 52 and the second rotating disc 53 are respectively and fixedly connected to two ends of the rotating shaft 56, so that the first rotating disc 52 and the second rotating disc 53 can synchronously rotate, the second rotating disc 53 is rotatably connected with the fixed sleeve 57, the fixed sleeve 57 is slidably connected with the sliding rod 58, and the sliding rod 58 is fixedly connected with the connecting rod 47, so that when the second rotating disc 53 rotates, the fixed sleeve 57, the sliding rod 58 and the connecting rod 47 can be driven to move up and down, and the sliding seat 43 can be driven to slide up and down along with the sliding of the sliding rod 58 in the fixed sleeve 57, the box body 21 is provided with the movable hole 49 for sliding the connecting rod 47, the connecting rod 47 is fixedly connected with the baffle 48, the baffle 48 can ensure that the movable hole 49 can be always blocked in the sliding process of the connecting rod 47, so that liquid cannot leak, and when the first rotating disc 52 rotates with the second rotating disc 53, the fixing rod 55 can be continuously driven, when the sliding seat 43 slides upwards, the top end of the sliding seat 43 is inclined and contacts the inner wall of the through hole 42, so that when the sliding seat 43 slides upwards, the sliding seat 43 continuously drives the top plate 41 to slide, the top plate 41 slides and simultaneously drives the connecting column 54 to move, the connecting column 54 also drives the bottom plate 59 to slide, when the bottom plate 59 slides, the calcium sulfate solid in the box 21 can be pushed out of the box 21 and further falls into the first cylinder body 35, so that the sliding seat 43 slides downwards to extrude slurry for filtering, when the sliding seat 43 slides upwards, the bottom plate 59 discharges the calcium sulfate solid from the box 21, the position of the fixing rod 55 on the first rotating disc 52 is ninety degrees different from the position of the fixing sleeve 57 on the second rotating disc 53, namely the rotation of the two discs is different by one fourth period, therefore, the first rotating disc 52 and the second rotating disc 53 rotate for one circle for four stages, in the first stage, the fixing sleeve 57 rises from the middle position and drives the sliding seat, in the process, the top plate 41 and the bottom plate 59 move leftwards to drive the calcium sulfate to be discharged to the first cylinder body 35, the fixing rod 55 moves from the six-point direction to the nine-point direction, and is not functional, in the second stage, the fixing sleeve 57 drives the sliding seat 43 to slide from the highest position to the middle position, the top plate 41 and the bottom plate 59 are located leftmost at the moment, the fixing rod 55 moves from the nine-point direction to the twelve-point direction to drive the connecting column 54 to move from the left side to the middle position and drive the top plate 41 and the bottom plate 59 to move to the middle position, in the third stage, the sliding seat 43 moves downwards from the middle to perform extrusion filtration, the fixing rod 55 moves from the twelve-point direction to the three-point direction to continuously drive the connecting column 54 to move rightwards, finally, the top plate 41 and the bottom plate 59 are driven to move rightmost and return to the initial position, in the fourth stage, at this time, the fixing rod 55 moves from the three-point direction to the six-point direction, the top plate 41 and the bottom plate 59 are not moved, and then the above processes are continuously repeated, namely, the squeezing and filtering are continuously carried out, and then the calcium sulfate is discharged to the first cylinder body 35; after the motor 61 is electrically connected with an external power supply, the motor 61 is turned on, the output shaft of the motor 61 rotates to drive the rotating rod 62 to rotate, the rotating rod 62 drives the worm 63 to rotate, and further drives the worm wheel 64 to rotate, and the worm wheel 64 rotates to drive the rotating shaft 56 to rotate, so that the first rotating disc 52 and the second rotating disc 53 rotate, and the device operates periodically.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a SOx/NOx control tower secondary purification filter equipment which characterized in that: comprises a base (1), a filtering structure (2), a collecting structure (3), an extruding structure (4), an adjusting structure (5) and a driving structure (6), the base (1) for supporting the whole device is connected with the filtering structure (2) for filtering calcium sulfate slurry obtained after the desulfurization and denitrification tower processes waste gas, the base (1) is connected with the collecting structure (3) which can collect the product obtained after the filtering structure (2) finishes filtering, the filtering structure (2) is connected with the extrusion structure (4) which can improve the filtering efficiency, the base (1) is connected with the adjusting structure (5) which can control the filter structure (2) and the extrusion structure (4) to be matched, the base (1) is connected with the driving structure (6) which can control the movement of the adjusting structure (5).

2. The secondary purification and filtration device of the desulfurization and denitrification tower of claim 1, which is characterized in that: filtration (2) are including box (21), feed liquor pipe (22), screw (23), pipe (24), filter screen (25), horizontal pole (26) and rubber circle (27), fixedly connected with on base (1) box (21), one side fixedly connected with of box (21) feed liquor pipe (22), seted up the bottom of box (21) screw (23), the internal thread of screw (23) is connected with pipe (24), fixedly connected with on the inner wall of pipe (24) filter screen (25), fixedly connected with on pipe (24) horizontal pole (26), fixedly connected with on the inner wall of screw (23) rubber circle (27).

3. The secondary purification and filtration device of the desulfurization and denitrification tower of claim 2, which is characterized in that: collect structure (3) including spout (31), outer slide (32), interior slide (33), handle (34), first cylinder body (35) and second cylinder body (36), seted up one side of base (1) spout (31), the inside sliding connection of spout (31) has outer slide (32), the inside sliding connection of outer slide (32) has interior slide (33), fixedly connected with on interior slide (33) handle (34), the inside of base (1) is equipped with first cylinder body (35) with second cylinder body (36), second cylinder body (36) are located the bottom of filter screen (25).

4. The secondary purification and filtration device of the desulfurization and denitrification tower of claim 3, which is characterized in that: the extrusion structure (4) comprises a top plate (41), a through hole (42), a sliding seat (43), a pressing plate (44), a fixed plate (45), a spring (46), a connecting rod (47), a baffle plate (48) and a movable hole (49), wherein the top end of the box body (21) is connected with the top plate (41) in a sliding manner, the through hole (42) is formed in the top plate (41), the sliding seat (43) is connected with the inner wall of the box body (21) in a sliding manner, the top of the sliding seat (43) is an inclined plane, the pressing plate (44) is connected with the bottom of the sliding seat (43) in a sliding manner, the sliding seat (43) is of a hollow structure, the fixed plate (45) is fixedly connected with the inner wall of the sliding seat (43), the bottom of the fixed plate (45) is fixedly connected with one end of the spring (46), and the other end of the spring (46), fixedly connected with on sliding seat (43) connecting rod (47), being close to of box (21) one side of connecting rod (47) has been seted up activity hole (49), connecting rod (47) sliding connection in the inside of activity hole (49), fixedly connected with on connecting rod (47) baffle (48), baffle (48) sliding connection in the side of box (21), just the width of baffle (48) is greater than the width of activity hole (49).

5. The secondary purification and filtration device of the desulfurization and denitrification tower of claim 4, which is characterized in that: the adjusting structure (5) comprises a fixed seat (51), a first turntable (52), a second turntable (53), a connecting column (54), a fixing rod (55), a rotating shaft (56), a fixed sleeve (57), a sliding rod (58) and a bottom plate (59), the fixed seat (51) is fixedly connected to the base (1), the rotating shaft (56) is rotatably connected to the fixed seat (51), the two ends of the rotating shaft (56) are respectively fixedly connected to the first turntable (52) and the second turntable (53), the bottom end of the box body (21) is slidably connected to the bottom plate (59), the connecting column (54) is fixedly connected between the bottom plate (59) and the top plate (41), the fixing rod (55) is fixedly connected to the first turntable (52), the fixed sleeve (57) is rotatably connected to the second turntable (53), and the sliding rod (58) is slidably connected to the inner portion of the fixed sleeve (57), the sliding rod (58) is fixedly connected with the connecting rod (47).

6. The secondary purification and filtration device of the desulfurization and denitrification tower of claim 5, which is characterized in that: drive structure (6) include motor (61), bull stick (62), worm (63) and worm wheel (64), fixedly connected with on fixing base (51) motor (61), fixedly connected with on motor (61) bull stick (62), fixedly connected with on bull stick (62) worm (63), fixedly connected with on pivot (56) worm wheel (64), worm (63) with worm wheel (64) mesh mutually.