CN113233629B - Circular super-efficient shallow air-flotation filter tank treatment equipment and treatment process thereof - Google Patents

Abstract

The invention relates to the technical field of water treatment, in particular to circular super-efficient shallow air flotation filter treatment equipment and a treatment process thereof. The circular super-efficient shallow air-floating filter treatment equipment comprises a filter pressing device and an air-floating biological filter for further purifying water filtered by the filter pressing device, wherein the filter pressing device comprises a filter plate, a push plate assembly, a connecting rod assembly and a transmission assembly; the filter plates are provided with an even number and are arranged in a superposition mode along the left and right directions, and rollers are arranged on the front side and the rear side of the middle of each filter plate; the push plate component is used for pushing the filter plate to open; the filter plates are sequentially grouped in pairs from left to right, and each group of filter plates comprises a first filter plate positioned on the left side and a second filter plate positioned on the right side; the connecting rod assembly is configured to enable the second filter plate to be lifted upwards within a preset distance of the second filter plate moving rightwards; when the second filter plate is lifted upwards, the transmission assembly enables the inner ends of the rollers of the first filter plate to move rightwards along with the second filter plate, enables the rollers of the first filter plate to incline, and further prevents the first filter plate from sliding rightwards along with the second filter plate under the adhesion of filter cakes.

Description

Circular super-efficient shallow air-flotation filter tank treatment equipment and treatment process thereof

Technical Field

The invention relates to the technical field of wastewater treatment, in particular to circular super-efficient shallow air flotation filter treatment equipment and a treatment process thereof.

Background

In order to reduce the influence of the sewage on the environment, the sewage needs to be treated until the sewage meets the water quality requirement of being discharged into a certain water body or being reused, the existing air-floating filter tank equipment comprises two-stage treatment, wherein the first-stage treatment utilizes a filtering mode to remove solid pollutants in water, the second-stage treatment utilizes an activated sludge method or a biomembrane method to treat the soluble inorganic matters in the water, in order to improve the filtering efficiency of the first-stage treatment, a plurality of filter plates are often adopted for filter pressing, the solid matters in the sewage can be compressed to form filter cakes while filtering the sewage, the subsequent transportation and treatment are convenient, but when the filter plates are opened, because the filter cake adhesion easily causes adjacent filter plate to remove, is unfavorable for the filter plate to open the filter cake and drops, influences filtration efficiency, and then influences the efficiency of system's processing sewage. Therefore, an air floatation filter device capable of efficiently filtering water is needed.

Disclosure of Invention

The invention provides a circular super-efficient shallow air-floating filter treatment device, which aims to solve the problem of low filtration efficiency caused by adhesion of filter plates of a filter pressing device of the conventional air-floating filter treatment device.

The invention relates to a circular super-efficient shallow air-floating filter treatment device and a treatment process thereof, which adopt the following technical scheme:

a circular super-efficient shallow air-floating filter treatment device comprises a filter pressing device and an air-floating biological filter, wherein the filter pressing device comprises a filter plate, a push plate assembly, a connecting rod assembly, a transmission assembly and a support, two parallel push plate rails extending leftwards and rightwards are arranged on the support, and the filter plate rails extending leftwards and rightwards are arranged on the inner sides of the push plate rails; the filter plates are arranged in a superposition manner along the left-right direction and are positioned between the two push plate tracks, and the front side and the rear side of the middle part of the filter plate are provided with rollers extending along the front-rear direction, so that the filter plates can be placed on the upper sides of the filter plate tracks in a left-right rolling manner; the two push plate assemblies are symmetrically distributed on the front side and the rear side of the filter plate, are slidably arranged on the outer side of the push plate track, and are configured to sequentially push the two filter plates to move leftwards when moving from left to right along the push plate track, and to sequentially push one filter plate to move rightwards and then sequentially push the two filter plates to move rightwards when moving from right to left; the filter plates are sequentially grouped in pairs from left to right, the left filter plate of each group of filter plates is a first filter plate, the right filter plate is a second filter plate, the inner end and the outer end of a roller of the second filter plate are hinged to the second filter plate around a horizontal axis, the outer end of the roller of the first filter plate can be arranged on the first filter plate in a front-back sliding mode, and the inner end of the roller of the first filter plate can be arranged on the first filter plate in a left-right sliding mode; the connecting rod assemblies are arranged on the filter plates and comprise first connecting rods and second connecting rods, the first connecting rods extend along the left-right direction, and the right ends of the first connecting rods are fixed on the second filter plates; the upper end of a second connecting rod is hinged with the left end of the first connecting rod, the lower end of the second connecting rod is arranged on the first filter plate in a vertically sliding mode, and the upper end of the second connecting rod is located on the left side of the lower end of the second connecting rod so that the first connecting rod moves rightwards along with the right filter plate to drive the upper end of the second connecting rod to swing around the lower end of the second connecting rod within a preset angle, and the second connecting rod lifts the second filter plate upwards; the transmission assembly is configured to enable the inner ends of the rollers of the first filter plate to synchronously move rightwards along with the second filter plate when the second filter plate moves upwards, so that the rollers of the first filter plate incline, and the first filter plate is prevented from sliding rightwards along with the second filter plate under the adhesion of filter cakes; the air-float biological filter receives the filtered water for further purification treatment.

Optionally, the transmission assembly comprises a first ratchet bar and a second ratchet bar, the first ratchet bar is mounted on the first filter plate in a left-right sliding manner, and the left end of the first ratchet bar acts on the inner end of the roller of the first filter plate; a first sliding chute extending vertically is formed in the second filter plate, the right end of the second ratchet bar is mounted in the first sliding chute in a vertically sliding mode, a second pressure spring is arranged between the second ratchet bar and the second filter plate, and the second ratchet bar tightly pushes the upper side wall of the first sliding chute under the extrusion of the second pressure spring; the second ratchet bar is positioned below the first ratchet bar and is in meshed transmission with the first ratchet bar when the second filter plate is lifted upwards; the first ratchet bar and the second ratchet bar are matched to be capable of moving rightwards along with the second ratchet bar after being meshed, and the transmission between the first ratchet bar and the second ratchet bar is disabled by extruding the second pressure spring when the second ratchet bar moves leftwards.

Optionally, the front side and the rear side of the upper part of each filter plate are provided with hangers, and the inner end and the outer end of each roller on the front side and the rear side of each second filter plate are respectively hinged to the hangers and the second filter plate; a first sliding block capable of sliding along the front-back direction is arranged below a hanging lug of the first filter plate, a second sliding block capable of sliding along the left-right direction is arranged on the side surface of the first filter plate, the outer end of a roller of the first filter plate is hinged to the first sliding block in a universal mode, and the inner end of the roller of the first filter plate is hinged to the second sliding block in a universal mode; the left end of the first ratchet bar is connected with the second sliding block, a first pressure spring is arranged between the right end of the second sliding block and the first filter plate, the second sliding block extrudes the first pressure spring when moving rightwards along with the first ratchet bar, and the second sliding block is driven to move leftwards when the first ratchet bar is disengaged from the second ratchet bar, so that the roller of the first filter plate returns to the initial state.

Optionally, a second sliding groove extending in the vertical direction is formed in the first filter plate, the lower end of the second connecting rod is rotatably and slidably mounted in the second sliding groove, and the hinged end of the second connecting rod is located at the bottom end of the second sliding groove in the initial state.

Optionally, a plurality of baffles are uniformly arranged on the outer side of the push plate rail at intervals, the push plate assembly comprises a shell, a first transmission mechanism, a second transmission mechanism and a transmission wheel, the shell is arranged on the outer side of the push plate rail in a left-right sliding manner, the first transmission mechanism is arranged in the shell and comprises an annular and rotatable first transmission belt, and a vertically extending stop block is arranged on the upper side of the first transmission belt so that the upper part of the first transmission belt moves in the direction opposite to the movement direction of the shell when the first transmission belt contacts with the side surface of the baffle; a tension spring is arranged between the stop block and the shell, so that when the stop block is separated from the stop plate, the stop block drives the upper part of the first transmission belt to move to an initial position along the same direction as the movement of the push plate component; the second transmission mechanism is arranged in the shell and comprises an annular rotatable second transmission belt, two shifting blocks are symmetrically arranged at the left end and the right end of the second transmission belt, the shifting block at the left end pushes the filter plate to move rightwards when the upper part of the second transmission belt moves rightwards, and the shifting block at the right end pushes the filter plate to move leftwards when the upper part of the second transmission belt moves leftwards; the driving wheel is rotatably arranged on the shell and is configured to enable the second driving belt to rotate synchronously with the first driving belt, and the linear velocity of the second driving belt is greater than that of the first driving belt.

Optionally, when the push plate assembly moves from left to right and the stop block is in contact with the left side surface of the first baffle plate, the second transmission mechanism is configured to enable the shifting block to push the two leftmost filter plates to move leftwards; the interval between two adjacent baffles is equal to the thickness of the two filter plates; the baffle is of a thin plate structure, and the thickness of the baffle is negligible; the first transmission mechanism, the second transmission mechanism and the transmission wheel are configured to enable the shifting block to push the filter plate to move by odd filter plate thickness every time; when the number of the filter plates is even N, the number of the baffle plates is at least N/2+ 1.

Optionally, the driving wheel includes a first driving wheel and a second driving wheel, the first driving wheel is larger than the second driving wheel, the first driving wheel and the second driving wheel are both rotatably mounted on the housing, the first driving wheel and the second driving wheel are coaxial and fixedly connected, the second driving wheel is in meshing transmission with the first driving belt, and the first driving wheel is in meshing transmission with the second driving belt.

Optionally, limiting plates extending along the radial direction of the second transmission wheel are arranged on the left side and the right side of the second transmission belt, the two shifting blocks are hinged to the two limiting plates respectively and can only rotate to one side far away from the limiting plates under the obstruction of the limiting plates, and a torsion spring is arranged between the shifting blocks and the limiting plates to enable the shifting blocks to be attached to the limiting plates; when the upper part of the second transmission belt moves rightwards, the shifting block at the left end pushes the filter plate to move rightwards under the obstruction of the limiting plate, and when the first torsion spring enables the first transmission belt to reset and further drives the upper part of the second transmission belt to move leftwards, the shifting block at the left side rotates to one side far away from the limiting plate under the pushing of the filter plate.

Optionally, the first transmission mechanism further includes two first mounting wheels, the two first mounting wheels are rotatably mounted on the housing and located on the same horizontal plane, and the first transmission belt is rotatably mounted on the two first mounting wheels; the second transmission mechanism further comprises two second mounting wheels, the two second mounting wheels are rotatably mounted on the shell and located on the same horizontal plane, and the second transmission belt is rotatably mounted on the two second mounting wheels.

Optionally, the filter pressing device further comprises a hydraulic pump, a push plate and a thrust plate, wherein the push plate is slidably mounted on the left sides of the plurality of filter plates, the thrust plate is fixedly mounted on the support and is positioned on the right sides of the plurality of filter plates, and a liquid inlet is formed in the thrust plate and is communicated with the centers of the plurality of filter plates; the hydraulic pump is arranged on the bracket, and the outer end of a hydraulic rod of the hydraulic pump is connected with the push plate so as to push the push plate to tightly push the filter plates; the lower part of each filter plate is provided with a water filtering port to discharge filtered water; the belt is arranged below the filter plates to receive filter cakes between the filter plates, and the front side and the rear side of the belt are provided with clapboards for preventing the filter cakes from falling off.

A treatment process of circular super-efficient shallow air-floating filter treatment equipment comprises the following steps:

(1) starting a hydraulic pump, tightly pushing a plurality of filter plates between a push plate and a thrust plate, and pumping sewage into the filter plates from a liquid inlet by using a high-pressure gun;

(2) the filtered water flows out from a water filtering opening at the lower part of the filter plate and flows to the water storage tank along the drainage plate, and the water in the water storage tank is conveyed to the air-flotation filter tank by the pressure pump;

(3) the air-float filter tank floats the impurities in the water and removes the impurities by a scraper.

The invention has the beneficial effects that: when a push plate assembly of a filter pressing device of the circular super-efficient shallow air-flotation filter treatment equipment moves from right to left to push a second filter plate to move rightwards, a second connecting rod is driven to swing, so that the second filter plate is lifted upwards, the gravity of the second filter plate acts on a first filter plate, a roller of the first filter plate is pressed downwards, and the first filter plate is blocked from moving; the second filter plate is lifted upwards, and the friction between the rollers of the second filter plate and the filter plate rails is reduced, so that the second filter plate is easier to pull; and when the second filter plate moves rightwards, the inner end of the roller of the first filter plate is driven to move through the transmission assembly, so that the roller of the first filter plate inclines, the first filter plate is prevented from moving rightwards along with the second filter plate under the adhesion of filter cakes between the two filter plates, and the filter cakes can fall off more easily.

Further, because the existence of connecting rod subassembly on per two filter plates, when the push pedal subassembly moved and promoted two filter plates and moved left from a left side to the right, be difficult for taking place to rock between two filter plates, reduce the gap error when the filter plate promotes the back and superposes once more, avoid the push pedal subassembly to push wrong board when moving from a right side to the left, and make the distance that promotes the filter plate for the first time and remove need not be too big, and then improved arm-tie efficiency.

Furthermore, the unidirectional meshing transmission of the first ratchet bar and the second ratchet bar ensures that the contact between the first filter plate and the second filter plate in the same group is not influenced when the first filter plate is pushed rightwards, so that the filter plate can be attached to the filter plate on the right side when the filter plate is pushed rightwards.

Further, two liang of filter plates of opening of push pedal subassembly in-process that moves from left to right make half filter cake drop, and make half filter cake drop at the pull plate dolly from the right side to left removal in-process, make full use of the whole travel route of push pedal subassembly, avoid the frequent switching-over of pull plate dolly, reduced the removal idle stroke of push pedal subassembly, improved the push pedal efficiency of push pedal subassembly, and then improved water filtering efficiency of water filtering device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a circular super-efficient shallow air-floating filter treatment device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a filter pressing device in an embodiment of the circular super-efficient shallow air-floating filter treatment equipment of the invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

FIG. 4 is a schematic diagram showing a state that a push plate component of a filter pressing device pushes a plate rightwards in an embodiment of the circular super-efficient shallow air-flotation filter treatment equipment.

Fig. 5 is an enlarged view of B in fig. 4.

Fig. 6 is an enlarged schematic view of C in fig. 5.

FIG. 7 is a schematic diagram showing the state of the first ratchet bar and the second ratchet bar of the filter pressing device in the embodiment of the circular super-efficient shallow air-flotation filter treatment equipment of the invention just engaged with each other.

FIG. 8 is a schematic diagram showing the first filter plate and the second filter plate of the filter pressing device in the embodiment of the circular super-efficient shallow air-floating filter treatment equipment of the invention in a pulled-open state.

FIG. 9 is a schematic view of the installation of the rollers of the filter pressing device in the embodiment of the circular super-efficient shallow air-floating filter treatment equipment of the invention.

FIG. 10 is an exploded schematic view of a push plate assembly of a filter pressing device in an embodiment of the circular super-efficient shallow air-floating filter treatment equipment of the present invention.

In the figure: 1. a filter pressing device; 2. an air flotation filter tank; 201. a motor; 202. a support bar; 203. a pressure pump; 204. a water storage tank; 205. a squeegee; 12. a hydraulic pump; 13. filtering the plate; 1301. a first filter plate; 1302. a second filter plate; 131. hanging a lug; 132. a first link; 133. a second link; 134. a second chute; 136. a water filtering port; 14. a thrust plate; 141. a liquid inlet; 15. pushing the plate; 16. a support; 161. a belt; 162. a partition plate; 163. a drainage plate; 17. a push plate track; 171. a rail stopper; 18. a filter plate rail; 181. a baffle plate; 20. a push plate assembly; 21. a second transmission mechanism; 211. a second mounting wheel; 212. shifting blocks; 213. a second belt; 22. a first transmission mechanism; 221. a first mounting wheel; 222. a stopper; 223. a first drive belt; 23. a driving wheel; 231. a first drive pulley; 232. a second transmission wheel; 31. a roller; 33. a first slider; 34. a second slider; 341. a first ratchet bar; 35. a first pressure spring; 361. a second ratchet bar; 362. and the second pressure spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the circular super-efficient shallow air-flotation filter treatment equipment of the invention, as shown in figures 1 to 10, comprises a filter pressing device 1 and an air-flotation filter 2,

the filter pressing device 1 comprises a filter plate 13, a push plate component 20, a connecting rod component, a transmission component and a bracket 16, wherein two parallel push plate tracks 17 extending leftwards and rightwards are arranged on the bracket 16, and filter plate tracks 18 extending leftwards and rightwards are arranged on the inner sides of the push plate tracks 17;

an even number of filter plates 13 are arranged in a left-right direction in a superposed manner and are positioned between the two push plate rails 17, and rollers 31 extending in the front-back direction are arranged at the front side and the rear side of the middle part of each filter plate 13, so that the filter plates 13 can be placed on the upper sides of the filter plate rails 18 in a left-right rolling manner;

the two push plate assemblies 20 are symmetrically distributed on the front side and the rear side of the filter plates 13, are slidably mounted on the outer sides of the push plate rails 17, and are configured to sequentially push the two filter plates 13 to move leftwards when moving from left to right along the push plate rails 17, and to sequentially push one filter plate 13 to move rightwards and then sequentially push the two filter plates 13 to move rightwards when moving from right to left;

the filter plates 13 are sequentially grouped in pairs from left to right, the left filter plate 13 of each group of filter plates 13 is a first filter plate 1301, the right filter plate 13 is a second filter plate 1302, the inner end and the outer end of each roller 31 of the second filter plate 1302 are hinged to the second filter plate 1302 around a horizontal axis, the outer end of each roller 31 of the first filter plate 1301 can be installed on the first filter plate 1301 in a front-back direction in a sliding mode, and the inner end of each roller 31 of the first filter plate 1301 can be installed on the first filter plate 1301 in a left-right direction in a sliding mode;

the connecting rod assemblies are arranged on each group of filter plates 13 and comprise first connecting rods 132 and second connecting rods 133, the first connecting rods 132 extend along the left-right direction, and the right ends of the first connecting rods 132 are fixed on the second filter plates 1302; the upper end of the second connecting rod 133 is hinged with the left end of the first connecting rod 132, the lower end of the second connecting rod 133 is installed on the first filter plate 1301 in a manner of sliding up and down, and the upper end of the second connecting rod 133 is located on the left side of the lower end, so that the first connecting rod 132 moves rightwards along with the right filter plate 13 to drive the upper end of the second connecting rod 133 to swing around the lower end of the second connecting rod 133 within a preset angle, and the second connecting rod 133 lifts the second filter plate 1302 upwards;

the transmission assembly is configured to move the inner ends of the rollers 31 of the first filter plate 1301 to the right synchronously with the second filter plate 1302 when the second filter plate 1302 moves upward, so that the rollers 31 of the first filter plate 1301 are inclined, and the first filter plate 1301 is prevented from sliding to the right along with the second filter plate 1302 under the adhesion of filter cakes;

the air floatation filter 2 receives the filtered water for further purification treatment.

In this embodiment, the transmission assembly comprises a first ratchet bar 341 and a second ratchet bar 361, the first ratchet bar 341 is slidably mounted on the first filter plate 1301 from left to right, and the left end of the first ratchet bar 341 acts on the inner end of the roller 31 of the first filter plate 1301; a first sliding chute extending vertically is formed in the second filter plate 1302, the right end of the second ratchet 361 is mounted in the first sliding chute in a vertically sliding manner, a second pressure spring 362 is arranged between the second ratchet 361 and the second filter plate 1302, and the second ratchet 361 tightly pushes against the upper side wall of the first sliding chute under the extrusion of the second pressure spring 362; the second ratchet 361 is located below the first ratchet 341 and is in meshed transmission with the first ratchet 341 when the second filter plate 1302 is lifted upwards; the first and second ratchets 341 and 361 are engaged such that the first ratchet 341 can move rightward with the second ratchet 361 after being engaged, and the transmission between the first and second ratchets 341 and 361 is disabled by pressing the second pressing spring 362 when the second ratchet 361 moves leftward.

In the embodiment, the front and rear sides of the upper part of each filter plate 13 are provided with the hanging lugs 131, and the inner and outer ends of the rollers 31 on the front and rear sides of the second filter plate 1302 are respectively hinged with the hanging lugs 131 and the second filter plate 1302; a first sliding block 33 capable of sliding along the front-back direction is arranged below the hanging lug 131 of the first filter plate 1301, a second sliding block 34 capable of sliding along the left-right direction is arranged on the side surface of the first filter plate 1301, the outer end of a roller 31 of the first filter plate 1301 is hinged to the first sliding block 33 in a universal mode, and the inner end of the roller is hinged to the second sliding block 34 in a universal mode; the left end of the first ratchet 341 is connected to the second slider 34, a first pressure spring 35 is disposed between the right end of the second slider 34 and the first filter plate 1301, the second slider 34 presses the first pressure spring 35 when the first ratchet 341 moves rightward, and the second slider 34 is urged to move leftward when the first ratchet 341 disengages from the second ratchet 361, so that the roller 31 of the first filter plate 1301 returns to the initial state.

In this embodiment, the first filter plate 1301 is provided with a second sliding groove 134 extending in the vertical direction, the lower end of the second link 133 is rotatably and slidably mounted to the second sliding groove 134 in the up-down direction, and the hinged end of the second link 133 is located at the bottom end of the second sliding groove 134 in the initial state.

In this embodiment, a plurality of baffles 181 are uniformly and alternately arranged on the outer side of the push plate rail 17, the push plate assembly 20 includes a housing, a first transmission mechanism 22, a second transmission mechanism 21 and a transmission wheel 23, the housing is slidably mounted on the outer side of the push plate rail 17 from side to side, the first transmission mechanism 22 is mounted in the housing and includes a first transmission belt 223 which is annular and rotatable, and a vertically extending stopper 222 is arranged on the upper side of the first transmission belt 223 to enable the upper portion of the first transmission belt 223 to move in the direction opposite to the movement direction of the housing when contacting with the side surface of the baffles 181; a tension spring is arranged between the stopper 222 and the housing to cause the stopper 222 to drive the upper portion of the first transmission belt 223 to move to an initial position along the same direction as the push plate assembly 20 moves when the stopper 222 is out of contact with the stopper 181; the second transmission mechanism 21 is installed in the housing and comprises an annular and rotatable second transmission belt 213, two shifting blocks 212 are symmetrically arranged at the left end and the right end of the second transmission belt 213, the shifting block 212 at the left end pushes the filter plate 13 to move rightwards when the upper part of the second transmission belt 213 moves rightwards, and the shifting block 212 at the right end pushes the filter plate 13 to move leftwards when the upper part of the second transmission belt 213 moves leftwards; the drive wheel 23 is rotatably mounted to the housing and is configured to rotate the second drive belt 213 in synchronism with the first drive belt 223, and the linear velocity of the second drive belt 213 is greater than the linear velocity of the first drive belt 223.

In the present embodiment, when the push plate assembly 20 moves from left to right and the stopper 222 contacts with the left side surface of the first baffle 181, the second transmission mechanism 21 is configured to make the shifting block 212 push the two leftmost filter plates 13 to move leftwards; the interval between two adjacent baffles 181 is the thickness of two filter plates 13; the baffle 181 is of a thin plate structure, and the thickness of the baffle is negligible; the first transmission mechanism 22, the second transmission mechanism 21 and the transmission wheel 23 are configured to enable the shifting block 212 to push the filter plate 13 to move by an odd number of filter plate 13 thickness at a time; when the number of the filter plates 13 is an even number, the number of the baffles 181 is at least N/2+ 1.

In this embodiment, the transmission wheel 23 includes a first transmission wheel 231 and a second transmission wheel 232, the first transmission wheel 231 is larger than the second transmission wheel 232, the first transmission wheel 231 and the second transmission wheel 232 are both rotatably mounted on the housing, the first transmission wheel 231 and the second transmission wheel 232 are coaxial and fixedly connected, the second transmission wheel 232 is in meshing transmission with the first transmission belt 223, and the first transmission wheel 231 is in meshing transmission with the second transmission belt 213.

In this embodiment, limiting plates extending along the radial direction of the second driving wheel 232 are disposed on both the left and right sides of the second driving belt 213, the two shifting blocks 212 are respectively hinged to the two limiting plates, and can only rotate to one side far away from the limiting plates under the obstruction of the limiting plates, and a torsion spring is disposed between the shifting blocks 212 and the limiting plates to urge the shifting blocks 212 to keep fit with the limiting plates; when the upper portion of the second belt 213 moves rightward, the left shifting block 212 pushes the filter plate 13 to move rightward under the obstruction of the limiting plate, and when the first torsion spring urges the first belt 223 to return and further drives the upper portion of the second belt 213 to move leftward, the left shifting block 212 rotates to the side away from the limiting plate under the pushing of the filter plate 13.

In this embodiment, the first transmission mechanism 22 further includes two first mounting wheels 221, the two first mounting wheels 221 are rotatably mounted on the housing and located on the same horizontal plane, and the first transmission belt 223 is rotatably mounted on the two first mounting wheels 221; the second transmission mechanism 21 further comprises two second mounting wheels 211, the two second mounting wheels 211 are rotatably mounted on the housing and located on the same horizontal plane, and a second transmission belt 213 is rotatably mounted on the two second mounting wheels 211.

In this embodiment, the left end of the push plate rail 17 is provided with a rail stopper 171 to limit the final position of the push plate assembly 20 moving to the left.

In this embodiment, the filter pressing device 1 further includes a hydraulic pump 12, a push plate 15, and a thrust plate 14, wherein the push plate 15 is slidably mounted on the left sides of the plurality of filter plates 13, the thrust plate 14 is fixedly mounted on the bracket 16 and located on the right sides of the plurality of filter plates 13, the thrust plate 14 is provided with a liquid inlet 141, and the liquid inlet 141 is communicated with the centers of the plurality of filter plates 13; the hydraulic pump 12 is arranged on the bracket 16, and the outer end of a hydraulic rod of the hydraulic pump 12 is connected with the push plate 15 so as to push the push plate 15 to tightly push the filter plates 13; a water filtering port 136 is formed at the lower part of each filter plate 13 to discharge filtered water; a belt 161 is provided below the filter plates 13 to receive filter cakes between the filter plates 13, and partition plates 162 for preventing the filter cakes from falling are provided on the front and rear sides of the belt 161.

In this embodiment, the circular super-efficient shallow air-flotation filter treatment equipment further comprises a conveying device, the conveying device comprises a flow guide plate 163, a water storage tank 204 and a pressure pump 203, the flow guide plate 163 is located below the water filtering port 136 to receive water filtered by the filter plate 13 and convey the water to the water storage tank 204, and the pressure pump 203 conveys the water in the water storage tank 204 to the air-flotation filter 2; the motor 201 is arranged above the air flotation filter 2, and the motor 201 is supported by the support rod 202 and drives the scraper 205 to rotate so as to remove scum in the air flotation filter 2.

When in use, the hydraulic rod of the hydraulic pump 12 pushes the push plate 15 to move rightwards, the plurality of filter plates 13 are tightly pressed between the push plate 15 and the thrust plate 14, sewage is pumped into the space between the filter plates 13 from the liquid inlet 141 by using a high-pressure gun, the filtered water flows out from the water filtering port 136 at the lower part of the filter plate 13 and flows to the water storage tank 204 along the drainage plate 163, and the water in the water storage tank 204 is conveyed to the air-flotation filter 2 by the pressure pump 203 for further purification treatment; the filtered impurities are left between the filter plates 13 to form filter cakes, until the filtering effect of the filter plates 13 is saturated, sewage cannot enter, the hydraulic rod of the hydraulic pump 12 is retracted, and the push plate 15 is pulled to move leftwards so that the filter cakes between the push plate 15 and the first filter plate 13 on the left side fall off. When the push plate 15 moves leftwards by a preset distance, the push plate assembly 20 is started to move leftwards and rightwards along the push plate track 17, when the stop 222 is in contact with the left side of the first baffle 181 from the left on the push plate track 17, the push plate assembly 20 continues to move rightwards, so that the upper part of the first transmission belt 223 moves leftwards relative to the baffle 181 under the obstruction of the baffle 181, and then the upper part of the second transmission belt 213 is driven to move leftwards through the transmission wheel 23, so that the shifting block 212 on the right side of the second transmission belt 213 rotates and pushes the first and second filter plates 13 from the left to move leftwards by the preset distance, and when the push plate assembly 20 moves rightwards, the stop 222 moves to the first mounting wheel 221 on the left side and is separated from the left side of the first baffle 181; the push plate assembly 20 continues to move rightwards until the stopper 222 crosses the first baffle 181, the stopper 222 drives the upper part of the first transmission belt 223 to move rightwards to return to the initial position under the action of the tension spring, and drives the upper part of the second transmission belt 213 to return to the initial position rightwards through the transmission wheel 23, and the right shifting block 212 on the second transmission belt 213 deflects leftwards to avoid the filter plates 13 when contacting with the third filter plate 13 along with the right movement of the second transmission belt 213 and is attached to the right limiting plate under the action of the torsion spring when returning to the right end of the second transmission belt 213; the push plate assembly 20 continues to move rightwards, so that the stop block 222 is in contact with the next baffle 181, the shifting block 212 on the right side of the second transmission belt 213 continues to push the lower two filter plates 13 to move leftwards until the push plate assembly 20 moves to the rightmost end of the push plate rail 17, one group of two filter plates 13 are pushed to the left side, and filter cakes between two adjacent groups of filter plates 13 all fall off; the push plate assembly 20 moves from right to left along the push plate track 17, when the stopper 222 contacts the right side of the first baffle 181 lifted from the right on the push plate track 17, the push plate assembly 20 continues to move to the left to move the upper portion of the first transmission belt 223 to the right relative to the baffle 181 under the obstruction of the baffle 181, and then the upper portion of the second transmission belt 213 is driven to move to the right by the transmission wheel 23, so that the shifting block 212 at the left side of the second transmission belt 213 rotates and pushes the second filter plates 1302 of the rightmost group of filter plates 13 to move to the right to the initial position, and when the second filter plates 1302 move to the right, the second filter plates 1302 are lifted upwards by driving the second connecting rods 133 to swing, so that the first ratchets 341 and the second ratchets 361 are engaged, and the second ratchets 361 move to the inner ends of the rollers 31 of the first filter plates 1301 to the right as the second filter plates 1302 move to the right, so that the rollers 31 of the first filter plates 1301 tilt, thereby preventing the first filter plate 1301 from moving rightwards along with the second filter plate 1302 under the adhesion of the filter cake, and influencing the falling of the filter cake; after the second connecting rod 133 continues to swing beyond the preset angle with the movement of the second filter plate 1302, the second ratchet 361 falls back along with the second filter plate 1302, the first ratchet 341 disengages from the second ratchet 361, and the second slider 34 drives the inner end of the roller 31 of the first filter plate 1301 to move leftwards and return to the initial position under the action of the first pressure spring 35. When the rear push plate assembly 20 continues to move rightwards, the stopper 222 is in contact with the right side of the next baffle 181, so that the shifting block 212 can push the two filter plates 13 rightwards, and the two filter plates 13 can move rightwards, so that the first filter plate 1301 and the second filter plate 1302 of each group of filter plates 13 are both opened; until the push plate assembly 20 continues to move leftwards to the initial position, so that all filter cakes between the filter plates 13 fall off, the hydraulic rod of the hydraulic pump 12 extends rightwards, and the push plate 15 pushes the filter plates 13 to perform the next sewage injection and filtration.

The invention discloses a treatment process of circular super-efficient shallow air-floating filter treatment equipment, which comprises the following steps:

(1) starting the hydraulic pump 12, pressing a plurality of filter plates 13 tightly between the push plate 15 and the thrust plate 14, and pumping sewage into the filter plates 13 from the liquid inlet 141 by using a high-pressure gun;

(2) the filtered water flows out from the water filtering port 136 at the lower part of the filter plate 13 and flows to the water storage tank 204 along the flow guide plate 163, and the pressurizing pump 203 conveys the water in the water storage tank 204 to the air flotation filter 2;

(3) the air flotation filter 2 floats impurities in water and removes the impurities by the scraper 205.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (4)

1. The utility model provides a circular super shallow layer air supporting filtering pond treatment facility that imitates, includes filter pressing device, air supporting biological filter, its characterized in that: the filter pressing device comprises a filter plate, a push plate assembly, a connecting rod assembly, a transmission assembly and a support, wherein two parallel push plate rails extending leftwards and rightwards are arranged on the support, and the filter plate rail extending leftwards and rightwards is arranged on the inner side of each push plate rail; the filter plates are arranged in a superposition manner along the left-right direction and are positioned between the two push plate tracks, and the front side and the rear side of the middle part of the filter plate are provided with rollers extending along the front-rear direction, so that the filter plates can be placed on the upper sides of the filter plate tracks in a left-right rolling manner; the two push plate assemblies are symmetrically distributed on the front side and the rear side of the filter plate, are slidably arranged on the outer side of the push plate track, and are configured to sequentially push the two filter plates to move leftwards when moving from left to right along the push plate track, and to sequentially push one filter plate to move rightwards and then sequentially push the two filter plates to move rightwards when moving from right to left; the filter plates are sequentially grouped in pairs from left to right, the left filter plate of each group of filter plates is a first filter plate, the right filter plate is a second filter plate, the inner end and the outer end of a roller of the second filter plate are hinged to the second filter plate around a horizontal axis, the outer end of the roller of the first filter plate can be arranged on the first filter plate in a front-back sliding mode, and the inner end of the roller of the first filter plate can be arranged on the first filter plate in a left-right sliding mode; the connecting rod assemblies are arranged on the filter plates and comprise first connecting rods and second connecting rods, the first connecting rods extend along the left-right direction, and the right ends of the first connecting rods are fixed on the second filter plates; the upper end of a second connecting rod is hinged with the left end of the first connecting rod, the lower end of the second connecting rod is arranged on the first filter plate in a vertically sliding mode, and the upper end of the second connecting rod is located on the left side of the lower end of the second connecting rod so that the first connecting rod moves rightwards along with the right filter plate to drive the upper end of the second connecting rod to swing around the lower end of the second connecting rod within a preset angle, and the second connecting rod lifts the second filter plate upwards; the transmission assembly is configured to enable the inner ends of the rollers of the first filter plate to synchronously move rightwards along with the second filter plate when the second filter plate moves upwards, so that the rollers of the first filter plate incline, and the first filter plate is prevented from sliding rightwards along with the second filter plate under the adhesion of filter cakes; the air-float biological filter receives the filtered water for further purification treatment;

the transmission assembly comprises a first ratchet bar and a second ratchet bar, the first ratchet bar is arranged on the first filter plate in a left-right sliding manner, and the left end of the first ratchet bar acts on the inner end of the roller of the first filter plate; a first sliding chute extending vertically is formed in the second filter plate, the right end of the second ratchet bar is mounted in the first sliding chute in a vertically sliding mode, a second pressure spring is arranged between the second ratchet bar and the second filter plate, and the second ratchet bar tightly pushes the upper side wall of the first sliding chute under the extrusion of the second pressure spring; the second ratchet bar is positioned below the first ratchet bar and is in meshed transmission with the first ratchet bar when the second filter plate is lifted upwards; the first ratchet bar and the second ratchet bar are matched to be capable of moving rightwards along with the second ratchet bar after being meshed, and the transmission between the first ratchet bar and the second ratchet bar is disabled by extruding the second pressure spring when the second ratchet bar moves leftwards;

the front side and the rear side of the upper part of each filter plate are provided with hangers, and the inner end and the outer end of each roller at the front side and the rear side of each second filter plate are respectively hinged with the hangers and the second filter plate; a first sliding block capable of sliding along the front-back direction is arranged below a hanging lug of the first filter plate, a second sliding block capable of sliding along the left-right direction is arranged on the side surface of the first filter plate, the outer end of a roller of the first filter plate is hinged to the first sliding block in a universal mode, and the inner end of the roller of the first filter plate is hinged to the second sliding block in a universal mode; the left end of the first ratchet bar is connected with the second sliding block, a first pressure spring is arranged between the right end of the second sliding block and the first filter plate, the second sliding block extrudes the first pressure spring when moving rightwards along with the first ratchet bar, and the second sliding block is driven to move leftwards when the first ratchet bar is disengaged from the second ratchet bar, so that the roller of the first filter plate returns to the initial state;

the outer side of the push plate rail is provided with a plurality of baffle plates which are uniformly distributed at intervals, the push plate assembly comprises a shell, a first transmission mechanism, a second transmission mechanism and a transmission wheel, the shell is arranged on the outer side of the push plate rail in a left-right sliding manner, the first transmission mechanism is arranged in the shell and comprises an annular and rotatable first transmission belt, and the upper side of the first transmission belt is provided with a vertically extending stop block so as to enable the upper part of the first transmission belt to move along the direction opposite to the moving direction of the shell when the first transmission belt is contacted with the side surface of the baffle plate; a tension spring is arranged between the stop block and the shell, so that when the stop block is separated from the stop plate, the stop block drives the upper part of the first transmission belt to move to an initial position along the same direction as the movement of the push plate component; the second transmission mechanism is arranged in the shell and comprises an annular rotatable second transmission belt, two shifting blocks are symmetrically arranged at the left end and the right end of the second transmission belt, the shifting block at the left end pushes the filter plate to move rightwards when the upper part of the second transmission belt moves rightwards, and the shifting block at the right end pushes the filter plate to move leftwards when the upper part of the second transmission belt moves leftwards; the driving wheel is rotatably arranged on the shell and is configured to enable the second driving belt to synchronously rotate with the first driving belt, and the linear velocity of the second driving belt is greater than that of the first driving belt;

the push plate assembly moves from left to right, and when the stop block is contacted with the left side surface of the first baffle plate, the second transmission mechanism is configured to enable the shifting block to push the two leftmost filter plates to move leftwards; the interval between two adjacent baffles is equal to the thickness of the two filter plates; the baffle is of a thin plate structure, and the thickness of the baffle is negligible; the first transmission mechanism, the second transmission mechanism and the transmission wheel are configured to enable the shifting block to push the filter plate to move by odd filter plate thickness every time; when the number of the filter plates is even N, the number of the baffle plates is at least N/2+ 1;

the driving wheel comprises a first driving wheel and a second driving wheel, the first driving wheel is larger than the second driving wheel, the first driving wheel and the second driving wheel are both rotatably arranged on the shell, the first driving wheel and the second driving wheel are coaxial and fixedly connected, the second driving wheel is in meshing transmission with the first driving belt, and the first driving wheel is in meshing transmission with the second driving belt;

limiting plates extending along the radial direction of the second transmission wheel are arranged on the left side and the right side of the second transmission belt, the two shifting blocks are respectively hinged to the two limiting plates and can only rotate to one side far away from the limiting plates under the obstruction of the limiting plates, and a torsion spring is arranged between the shifting blocks and the limiting plates so as to enable the shifting blocks to be attached to the limiting plates; when the upper part of the second transmission belt moves rightwards, the shifting block at the left end pushes the filter plate to move rightwards under the obstruction of the limiting plate, and when the first torsion spring enables the first transmission belt to reset and further drives the upper part of the second transmission belt to move leftwards, the shifting block at the left side rotates to one side far away from the limiting plate under the pushing of the filter plate.

2. The circular super-efficient shallow air-floating filter treatment equipment as claimed in claim 1, wherein: the first filter plate is provided with a second sliding groove extending in the vertical direction, the lower end of the second connecting rod is rotatably and slidably mounted in the second sliding groove up and down, and the hinged end of the second connecting rod is located at the bottom end of the second sliding groove in the initial state.

3. The circular super-efficient shallow air-floating filter treatment equipment as claimed in claim 1, wherein: the filter pressing device also comprises a hydraulic pump, a push plate and a thrust plate, wherein the push plate is slidably arranged on the left sides of the plurality of filter plates, the thrust plate is fixedly arranged on the bracket and is positioned on the right sides of the plurality of filter plates, and a liquid inlet is formed in the thrust plate and is communicated with the centers of the plurality of filter plates; the hydraulic pump is arranged on the bracket, and the outer end of a hydraulic rod of the hydraulic pump is connected with the push plate so as to push the push plate to tightly push the filter plates; the lower part of each filter plate is provided with a water filtering port to discharge filtered water; the belt is arranged below the filter plates to receive filter cakes between the filter plates, and the front side and the rear side of the belt are provided with clapboards for preventing the filter cakes from falling off.

4. The treatment process of the circular super-efficient shallow air-floating filter tank treatment equipment according to any one of claims 1 to 3, is characterized by comprising the following steps:

(1) starting a hydraulic pump, tightly pushing a plurality of filter plates between a push plate and a thrust plate, and pumping sewage into the filter plates from a liquid inlet by using a high-pressure gun;

(2) the filtered water flows out from a water filtering opening at the lower part of the filter plate and flows to the water storage tank along the drainage plate, and the water in the water storage tank is conveyed to the air-flotation filter tank by the pressure pump;

(3) the air-float filter tank floats the impurities in the water and removes the impurities by a scraper.

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