A folded plate reactor and method for sewage purification capable of continuous contraction and expansion

Abstract

The present invention discloses a folding plate reactor for sewage purification that can be continuously contracted and expanded, comprising a shell, a folding plate assembly and multiple purification assemblies; the folding plate assembly comprises multiple upper folding plates and lower folding plates; the shell is divided into a pretreatment chamber, a purification chamber and a water outlet chamber, and the shell is provided with a driving mechanism, a water inlet pipe and a water outlet pipe; the driving mechanism comprises a telescopic motor and multiple transmission assemblies; a first shearing knife and a second shearing knife are provided in the pretreatment chamber, an air bag is provided between the first and second shearing knives, and an air bag rod connected to the air bag is provided in the water outlet chamber; the sewage purification method of the present invention comprises allowing sewage to pass through the pretreatment chamber, the purification chamber and the water outlet chamber in sequence, being pretreated by the shearing knife and purified by the purification assembly; the present invention improves the sewage purification efficiency by linking the shell to perform pretreatment, purification and defoaming operations through the continuous contraction and expansion of the folding plate assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage purification, and in particular to a folded plate reactor for sewage purification which can be continuously contracted and expanded and a method thereof. Background Art

[0002] The reactor is divided into several reaction chambers connected in series by a series of vertically mounted baffles. Each reaction chamber can be considered a relatively independent upflow sludge blanket system. The wastewater being treated flows up and down along the baffles within the reactor, passing through the sludge blankets of each reaction chamber in turn. Organic substrates in the wastewater are removed through contact with the microorganisms. Gases generated within the reactor during the treatment process cause the microbial solids within the reactor to expand and settle within the compartments formed by the baffles, while the water flow throughout the reactor remains horizontal at a slower rate. The water's flow around the baffles increases the total length of the water within the reactor. Combined with the baffles' blocking effect and the sludge's settling, the biosolids are effectively retained within the reactor.

[0003] In the existing folded plate reactor, since the folded plate assembly is immovable, the flow of water depends solely on the subsequent water source, so that various pollutants in the sewage may settle and remain in the reactor, and the flow efficiency of such water flow is low.

[0004] Therefore, it is now necessary to design a folded plate reactor for sewage purification that can continuously shrink and expand and a method thereof to improve the above-mentioned problems. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a folded plate reactor and method for sewage purification that can continuously shrink and expand.

[0006] The technical solution of the present invention is: a continuously contractible and expandable folded plate reactor for sewage purification, comprising a shell, a folded plate assembly, and multiple purification assemblies; the folded plate assembly comprises multiple upper folded plates slidably and hermetically connected to the top of the shell, and multiple lower folded plates slidably and hermetically connected to the bottom of the shell, both sides of the upper and lower folded plates being slidably and hermetically connected to the inner wall of the shell, and the upper and lower folded plates being staggered in arrangement;

[0007] The chamber between the upper folding plate and the lower folding plate is a purification chamber, the chamber between the side wall of the shell and the upper folding plate is a pretreatment chamber, and the chamber between the side wall of the shell and the lower folding plate is a water outlet chamber. The multiple purification components are arranged one by one in the corresponding purification chambers;

[0008] The housing is provided with a driving mechanism for driving the folding plate assembly to contract and expand, a water inlet pipe communicating with the pretreatment chamber, and a water outlet pipe communicating with the water outlet chamber;

[0009] The driving mechanism includes a telescopic motor provided on the outer wall of the housing and a plurality of transmission components for pulling the upper folding plate and the lower folding plate; the lower folding plate close to the telescopic motor is fixedly connected to the output end of the telescopic motor through a connecting rod;

[0010] The pretreatment chamber is provided with a first rotating shaft having one end rotatably connected to the inner wall of the pretreatment chamber, a first shearing knife and a second rotating shaft, and a second shearing knife sleeved on the second rotating shaft, sequentially sleeved on the first rotating shaft from left to right, a first gear sleeved on the other end of the first rotating shaft, and a second gear sleeved on the second rotating shaft; a rotating wheel is provided on the outer wall of the shell body for friction transmission with the connecting rod, and the shaft of the rotating wheel passes through the inner wall of the pretreatment chamber and is provided with a third gear meshing with both the first gear and the second gear;

[0011] An airbag is provided between the first shearing knife and the second shearing knife, and an airbag rod is provided on the inner wall of the water outlet cavity. One end of the airbag rod is connected to the airbag through an air transmission tube, and the other end of the airbag rod is provided with a clapper for clapping and removing foam on the surface of the sewage.

[0012] Furthermore, a first through hole is respectively provided on the side wall of the shell corresponding to the upper folding plate and the lower folding plate, and a first transverse cavity is provided inside the side wall of the shell corresponding to each first through hole, a first sealing plate for blocking the first through hole is provided for sliding sealing in the first transverse cavity corresponding to the lower folding plate, and a second sealing plate for blocking the first through hole is provided for sliding sealing in the first transverse cavity corresponding to the upper folding plate; a plurality of slides for corresponding one-to-one with the driving rods fixed on the second sealing plate are provided on the side wall of the shell, and a vertical sliding groove is provided on the slide that is slidably connected to the driving rod;

[0013] The transmission assembly includes a first fixing rod, a third fixing rod and a fifth fixing rod arranged on the first sealing plate in sequence from top to bottom, and a second fixing rod and a fourth fixing rod arranged on the slide in sequence from top to bottom.

[0014] Each first fixing rod is hinged to the second fixing rod via a first hinge rod, and each third fixing rod is hinged to the fifth fixing rod via a third hinge rod.

[0015] The third hinged rod is composed of a first support rod and a second support rod hinged together, and each hinge point on the third hinged rod is hinged to the fourth fixed rod through the second hinged rod.

[0016] The driving rod passes through the second sealing plate and is fixedly connected to the upper folding plate. The first fixing rod and the third fixing rod pass through the first sealing plate and are fixedly connected to the lower folding plate.

[0017] Description: Through the above-mentioned transmission assembly, while the upper lower folding plate moves, the slide plate moves in an arc trajectory through the first hinge rod and the second hinge rod, thereby driving the upper folding plate to move horizontally under the restriction of the vertical slide groove, and then driving the movement of the next lower folding plate through the third hinge rod and the fourth hinge rod, thereby realizing the overall contraction and expansion of the folding plate assembly.

[0018] Furthermore, the purification component includes a microbial sponge and a filter plate, the two ends of the microbial sponge are respectively connected to the upper folding plate and the lower folding plate, and the filter plate is hinged to the side wall of one side of the lower folding plate through a fourth hinge rod.

[0019] Description: Microorganisms are released through the microbial sponge to achieve biological purification, and physical purification is achieved through the filter plate. The sponge and the fourth hinged rod prevent both from being damaged when the folding plate assembly contracts and expands.

[0020] Furthermore, the ends of the first shearing knife and the second shearing knife are each provided with a swing rod with one end hinged thereto, and a rotating rod rotatably connected to the inner wall of the pretreatment chamber is provided in the pretreatment chamber, and the other ends of the two swing rods are respectively hinged to the two sides of the rotating rod, and a plurality of spoilers are provided on the rotating rod.

[0021] Description: The two shear blades swing relative to each other on both sides of the rotating rod to rotate the rotating rod, so that the spoiler can rotate and disturb the sewage, thereby improving the flow efficiency of the sewage.

[0022] Furthermore, the bottom of each of the upper folding plates is provided with an adhesive plate inclined toward the water outlet pipe, one end of the adhesive plate is hinged to the upper folding plate through a fifth hinge rod, and a detachable nano-tape is provided on the side of the adhesive plate facing the filter plate;

[0023] The plurality of fifth hinge rods all extend to the outer wall of the shell, and one end of the rotating rod extends to the outer wall of the shell and is transmission-connected to each of the fifth hinge rods.

[0024] Description: The adhesive plate hinged to the upper folding plate can, on the one hand, drain the sewage; on the other hand, when the folding plate assembly contracts and expands, the filter plate and the adhesive plate rotate toward each other so that the two can fit together. The adhesive plate will stick the stains attached to the filter plate away from the filter plate, thereby improving the filtration efficiency.

[0025] Furthermore, a plurality of second through holes corresponding one-to-one to the purification chambers are provided on the top of the shell, a second transverse cavity corresponding to the second through holes and a fourth sealing plate slidingly and sealingly connected to the second transverse cavity are provided inside the shell, a plurality of foam removers corresponding one-to-one to the purification chambers are provided on the fourth sealing plate, the foam removers pass through the fourth sealing plate through an absorption liquid bag for absorbing foam, an elastic frame is provided on the microbial sponge, the two ends of the elastic frame are hinged to the adjacent upper folding plate and lower folding plate, and the middle part of the elastic frame is fixedly connected to the absorption liquid bag; the foam remover is connected to the pretreatment chamber through a reflux pipe, and a one-way valve is provided on both the absorption liquid bag and the reflux pipe.

[0026] Description: During the sewage purification process, a lot of foam will be generated due to biological reactions and water impact, which will affect the purification efficiency. Therefore, the foam on the sewage surface is removed by a foam remover. During the contraction and expansion of the folding plate assembly, the elastic frame will intermittently bulge, thereby helping the absorption sac to expand and contract and absorb the foam.

[0027] Furthermore, each of the fourth hinged rods passes through the corresponding first sealing plate and is sleeved with a fourth gear, each of the first sealing plates is provided with a third through hole, a vertical cavity is provided inside the side wall of the first sealing plate corresponding to each third through hole, and a third sealing plate is slidably and sealedly connected to the vertical cavity, a rack is provided on one side of the fourth gear and is slidably connected to the first sealing plate, the rack is meshed with the fourth gear for transmission, and a flushing pipe is provided on the rack, the flushing pipe passes through the third sealing plate and is fixedly and sealedly connected to the third sealing plate;

[0028] A flushing liquid bag fixedly connected to the driving rod is provided in the vertical slide groove. The upper part of the flushing liquid bag is connected to the reflux pipe through the first spiral tube and the catheter in sequence, and the lower part of the flushing liquid bag passes through the adjacent racks and is connected to the flushing pipe through the second spiral tubes on both sides; a second one-way valve is provided on the catheter and the flushing pipe.

[0029] Description: By setting up the flushing liquid bag and the flushing pipe, when the folding plate assembly contracts and expands, the return water in the return pipe can be sucked to flush the sludge accumulated under the filter plate, and by setting up the fourth gear and rack, the flushing pipe can move up and down with the swing of the filter plate, thereby expanding the flushing range.

[0030] Furthermore, the spoiler is provided with a plurality of stirring blades rotatably connected to the spoiler.

[0031] Description: The spoiler moves back and forth in the water flow, so that the stirring blade rotates under the dual action of the water flow and the spoiler, realizing the stirring function.

[0032] The method for purifying sewage using the above-mentioned continuously shrinkable and expandable folded plate reactor comprises the following steps:

[0033] S1. Sewage is introduced into the pretreatment chamber from the water inlet pipe, and the telescopic motor is simultaneously turned on to cause the folding plate assembly to continuously contract and expand. As the lower folding plate near the telescopic motor continuously contracts and expands, it drives the first shearing blade and the second shearing blade to shear and crush debris brought by the sewage in the pretreatment chamber.

[0034] S2. The sewage passes through multiple purification chambers and purification components in sequence, and finally enters the water outlet chamber and flows out from the water outlet pipe. The airbag rod in the water outlet chamber reciprocates and contracts due to the reciprocating shearing of the first shearing knife and the second shearing knife, so that the clapper reciprocates and beats the foam attached to the sewage to achieve defoaming when the water is discharged.

[0035] The beneficial effects of the present invention are:

[0036] (1) The folding plate reactor of the present invention drives the first lower folding plate through a telescopic motor, and then transmits the movement of the lower folding plate to the transmission assembly to drive the remaining upper and lower folding plates to shrink and expand synchronously, thereby realizing continuous shrinkage and expansion of the folding plate assembly. On the one hand, it can accelerate the water flow, and on the other hand, it can prevent sludge sedimentation from affecting purification through water flow fluctuations; and the spacing between each upper folding plate and lower folding plate changes during shrinkage and expansion, so the slide in the transmission assembly also produces an up and down displacement while moving left and right. The up and down displacement of the slide can squeeze and stretch the flushing liquid bag in the slide, thereby flushing the place where the sludge is easily accumulated on the lower folding plate, and due to the change in spacing, the filter plate on the lower folding plate will rotate to adjust the flushing position of the flushing pipe on the lower folding plate, thereby improving the flushing efficiency of the lower folding plate.

[0037] (2) In the folding plate reactor of the present invention, the folding plate assembly contracts and expands, driving the shearing knife in the pretreatment chamber to shear and crush the debris in the incoming sewage, and the reciprocating shearing of the shearing knife generates power for the airbag rod in the water outlet chamber, thereby removing the foam in the water outlet chamber and improving the sewage purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is the overall appearance of the folded plate reactor of the present invention;

[0039] Figure 2 This is a diagram of the internal structure of a folded plate reactor according to embodiment 1 of the present invention;

[0040] Figure 3 This is a transmission diagram of the first shearing knife of the folding plate reactor of the present invention;

[0041] Figure 4 This is a rear view of the overall appearance of the folded plate reactor of the present invention;

[0042] Figure 5 This is a diagram showing the internal structure of the pretreatment chamber of the folded plate reactor of the present invention;

[0043] Figure 6 This is a diagram showing the internal structure of the water outlet chamber of the folded plate reactor of the present invention;

[0044] Figure 7 This is a structural diagram of a vertical chute of a folded plate reactor according to Example 1 of the present invention;

[0045] Figure 8 This is a top structural diagram of Example 2 of the folded plate reactor of the present invention;

[0046] Figure 9 This is a diagram of the internal structure of Example 2 of the folded plate reactor of the present invention;

[0047] Figure 10 This is an overall appearance diagram of Example 3 of the folded plate reactor of the present invention;

[0048] Figure 11 This is a structural diagram of the flushing liquid capsule of Example 3 of the folded plate reactor of the present invention;

[0049] Figure 12 This is a structural diagram of a flushing pipe of Example 3 of a folded plate reactor of the present invention;

[0050] Among them, 1-shell, 11-water inlet pipe, 12-water outlet pipe, 13-upper folding plate, 131-slide plate, 132-second fixed rod, 133-fourth fixed rod, 134-driving rod, 135-fifth hinged rod, 136-paste plate, 137-vertical slide, 138-flushing liquid bag, 14-lower folding plate, 141-first fixed rod, 142-third fixed rod, 143-third fixed rod, 144-first hinged rod, 145-third hinged rod, 146-second hinged rod, 15-telescopic motor, 151-connecting rod, 152-rotating wheel, 153-third gear, 2-pretreatment chamber, 16-transverse cavity, 161-first sealing plate, 162-third sealing plate , 163- rack, 164- flushing tube, 165- second spiral tube, 166- second sealing plate, 21- first shearing knife, 211- first rotating shaft, 212- first gear, 22- second shearing knife, 221- second rotating shaft, 222- second gear, 23- swing rod, 24- rotating rod, 25- spoiler, 251- stirring blade, 26- air bag, 261- air transmission tube, 3- purification chamber, 31- microbial sponge, 311- elastic frame, 32- filter plate, 321- fourth gear, 4- water outlet chamber, 41- air bag rod, 42- clapper, 5- foam remover, 51- suction capsule, 52- reflux pipe, 521- catheter, 522- first spiral tube. DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below in conjunction with specific implementation methods to better demonstrate the advantages of the present invention. Example

[0052] A folded plate reactor for sewage purification capable of continuous contraction and expansion, such as Figure 2 As shown, it includes a shell 1, a folding plate assembly and five purification components; the folding plate assembly includes three upper folding plates 13 that are slidably and sealedly connected to the top of the shell 1 and three lower folding plates 14 that are slidably and sealedly connected to the bottom of the shell 1. Both sides of the upper folding plates 13 and the lower folding plates 14 are slidably and sealedly connected to the inner wall of the shell 1, and the upper folding plates 13 and the lower folding plates 14 are staggered.

[0053] like Figure 2 As shown, the chamber located between the upper folding plate 13 and the lower folding plate 14 is the purification chamber 3, the chamber located between the side wall of the shell 1 and the upper folding plate 13 is the pretreatment chamber 2, and the chamber located between the side wall of the shell 1 and the lower folding plate 14 is the water outlet chamber 4. The multiple purification components are arranged one by one in the corresponding purification chamber 3;

[0054] like Figure 2 As shown, the purification component includes a microbial sponge 31 and a filter plate 32. The two ends of the microbial sponge 31 are respectively connected to the upper folding plate 13 and the lower folding plate 14. The filter plate 32 is hinged to the left side wall of the lower folding plate 14 through a fourth hinge rod.

[0055] like Figure 1 As shown, the housing 1 is provided with a driving mechanism for driving the folding plate assembly to contract and expand, a water inlet pipe 11 communicating with the pretreatment chamber 2, and a water outlet pipe 12 communicating with the water outlet chamber 4;

[0056] like Figure 1 and Figure 2 As shown, the driving mechanism includes a telescopic motor 15 provided on the side wall of the housing 1 and two transmission assemblies for pulling the upper folding plate 13 and the lower folding plate 14 to move in translation; the lower folding plate 14 close to the telescopic motor 15 is fixedly connected to the output end of the telescopic motor 15 via an L-shaped connecting rod 151; the telescopic motor 15 is a commercially available telescopic motor;

[0057] like Figure 1 and Figure 2As shown, a first through hole is respectively provided on the side wall of the shell 1 corresponding to the upper folding plate 13 and the lower folding plate 14, and a first transverse cavity 16 is provided inside the side wall of the shell 1 corresponding to each first through hole. A first sealing plate 161 for blocking the first through hole is provided in the first transverse cavity 16 corresponding to the lower folding plate 14, and a second sealing plate 166 for blocking the first through hole is provided in the first transverse cavity 16 corresponding to the upper folding plate 13. Two slide plates 131 are provided on the side wall of the shell 1 for corresponding one to one with the driving rod 134 fixed on the second sealing plate 166. The slide plates 131 are provided with a vertical sliding groove 137 that is slidably connected to the driving rod 134.

[0058] like Figure 1 As shown, the transmission assembly includes a first fixing rod 141, a third fixing rod 142 and a fifth fixing rod 143 which are sequentially arranged on the first sealing plate 161 from top to bottom, and a second fixing rod 132 and a fourth fixing rod 133 which are sequentially arranged on the slide plate 131 from top to bottom.

[0059] like Figure 1 As shown, each first fixing rod 141 is hinged to the second fixing rod 132 via a first hinge rod 144, and each third fixing rod 142 is hinged to the fifth fixing rod 143 via a third hinge rod 145.

[0060] like Figure 1 As shown, the third hinge rod 145 is composed of a first support rod and a second support rod hinged together, and the hinge points on each third hinge rod 145 are hinged to the fourth fixed rod 133 through the second hinge rod 146. It can be understood that the hinge point is the hinge point between the first support rod and the second support rod;

[0061] like Figure 1 and Figure 2 As shown, the driving rod 134 passes through the second sealing plate 166 and is fixedly connected to the upper folding plate 13, and the first fixing rod 141 and the third fixing rod 142 pass through the first sealing plate 161 and are fixedly connected to the lower folding plate 14;

[0062] like Figure 2 and Figure 3As shown, the pretreatment chamber 2 is provided with a first rotating shaft 211 with one end rotatably connected to the inner wall of the pretreatment chamber 2, a first shearing knife 21 and a second rotating shaft 221 sleeved on the first rotating shaft 211 from left to right, and a second shearing knife 22 sleeved on the second rotating shaft 221, the other end of the first rotating shaft 211 is sleeved with a first gear 212, and the second rotating shaft 221 is sleeved with a second gear 222; the outer wall of the shell 1 is provided with a rotating wheel 152 that is frictionally driven with the connecting rod 151, and the shaft of the rotating wheel 152 passes through the inner wall of the pretreatment chamber 2 and is provided with a third gear 153 that is meshed with the first gear 212 and the second gear 222;

[0063] like Figure 3 and Figure 5 As shown, the ends of the first shearing blade 21 and the second shearing blade 22 are each provided with a swinging rod 23 hinged at one end therewith, and a rotating rod 24 rotatably connected to the inner wall of the pretreatment chamber 2 is provided in the pretreatment chamber 2, and the other ends of the two swinging rods 23 are respectively hinged to the two sides of the rotating rod 24, and the rotating rod 24 is sleeved with seven spoilers 25, and the spoilers 25 are provided with a plurality of stirring blades 251 rotatably connected to the spoilers 25;

[0064] like Figures 4 to 6 As shown, an airbag 26 is provided between the first shearing knife 21 and the second shearing knife 22, and an airbag rod 41 is provided on the inner wall of the water outlet chamber 4. One end of the airbag rod 41 is connected to the airbag 26 through an air transmission tube 261, and the other end of the airbag rod 41 is provided with a clapper 42 for clapping and removing foam on the surface of the sewage.

[0065] The method for purifying sewage using the above-mentioned continuously shrinkable and expandable folded plate reactor comprises the following steps:

[0066] S1. Sewage enters the housing 1 from the water inlet pipe 11, and the telescopic motor 15 is started. The connecting rod 151 drives the first lower folding plate 14 to contract and expand, so that the first fixed rod 141 on the lower folding plate 14 drives the slide plate 131 to move through the first hinge rod 144 and the second fixed rod 132, and the third fixed rod 142 on the lower folding plate 14 drives the fourth fixed rod 133 on the slide plate 131 and the fifth fixed rod 143 on the next folding plate 14 to move through the second hinge rod 146 and the third hinge rod 145, so that the adjacent lower folding plate 14 and the slide plate 131 are contracted and expanded, and the slide plate 131 drives the upper folding plate 13 to contract and expand through the driving rod 134, thereby realizing the contraction and expansion of the folding plate assembly;

[0067] During the squeezing and recovery process, the microbial sponge 31 accelerates the release efficiency of microorganisms, thereby performing biological purification and intermittently expanding the contact area between the sewage and the microbial sponge 31 to improve purification efficiency. At the same time, the filter plate 32 filters the sewage and rotates downward or upward as the folding plate assembly contracts and expands to avoid being squeezed and damaged, thereby reducing the impact on the folding plate assembly.

[0068] At the same time, the reciprocating translation of the connecting rod 151 drives the rotating wheel 152 to rotate forward and reverse, thereby driving the first shearing blade 21 and the second shearing blade 22 to swing in opposite directions through the reverse meshing of the third gear 153 with the first gear 212 and the second gear 212, thereby shearing and crushing the sewage and debris in the pre-treatment chamber 2;

[0069] S2, while the first shearing knife 21 and the second shearing knife 22 are shearing, the up and down movement of the swinging rod 23 drives the rotating rod 24 to produce forward and reverse rotation, thereby driving the spoiler 25 to disturb the sewage and increase the water flow rate; and the air bag 26 between the first shearing knife 21 and the second shearing knife 22 also generates inhalation and exhalation, thereby providing power to the air bag rod 41 in the water outlet chamber 4, causing the clapper 42 to reciprocate and disperse the foam in the sewage, so that the purified sewage can better flow out of the outlet pipe 12. Example

[0070] This embodiment is different from embodiment 1 in that Figure 8 and Figure 9 As shown, the top of the shell 1 is provided with three second through holes corresponding to the purification chamber 3 one by one, and the inside of the shell 1 corresponding to the second through holes is provided with a second transverse cavity and a fourth sealing plate slidingly sealed with the second transverse cavity, and the fourth sealing plate is provided with a foam remover 5, and the foam remover 5 passes through the fourth sealing plate through the absorption liquid bag 51 for absorbing foam, and the microbial sponge 31 is provided with an elastic frame 311, the two ends of the elastic frame 311 are hinged to the adjacent upper folding plate 13 and the lower folding plate 14, and the middle part of the elastic frame 311 is fixedly connected to the absorption liquid bag 51; the foam remover 5 is connected to the pretreatment chamber 2 through the return pipe 52, and the absorption liquid bag 51 and the return pipe 52 are both provided with a first one-way valve; the foam remover 5 is a commercially available defoamer, and the first one-way valve is a commercially available equipment.

[0071] The purification method of this embodiment is different from that of Example 1 in that the elastic frame 311 is squeezed and stretched by the folding plate assembly, thereby generating an up and down displacement, thereby squeezing and stretching the absorption bag 51, so that the foam in the sewage is removed by the foam remover 5, and the sewage after defoaming enters the pretreatment chamber 1 through the return pipe 52 for further purification. Example

[0072] The difference between this embodiment and embodiment 2 is that Figure 10As shown, the bottom of each of the three upper folding plates 13 is provided with an adhesive plate 136 facing the water outlet pipe 12. One end of the adhesive plate 136 is hinged to the upper folding plate 13 through a fifth hinge rod 135, and a detachable nano tape is provided on the side of the adhesive plate 136 facing the filter plate 32. The nano tape is a commercially available nano tape.

[0073] like Figure 10 As shown, the three fifth hinge rods 135 all extend to the inside of the side wall of the housing 1, and one end of the rotating rod 24 extends to the outer wall of the housing 1 and is transmission-connected to the fifth hinge rod 135;

[0074] like Figure 10 、 Figure 11 and Figure 12 As shown, each of the fourth hinged rods passes through the corresponding first sealing plate 161 and is sleeved with a fourth gear 321. Each of the first sealing plates 161 is provided with a third through hole. A vertical cavity and a third sealing plate 162 that is slidably and sealedly connected to the vertical cavity are provided inside the side wall of the first sealing plate 161 corresponding to each third through hole. A rack 163 that is slidably connected to the first sealing plate 161 is provided on one side of the fourth gear 321. The rack 163 is meshed with the fourth gear 321 for transmission and a flushing pipe 164 is provided on the rack 163. The flushing pipe 164 passes through the third sealing plate 162 and is fixedly and sealedly connected to the third sealing plate 162.

[0075] like Figure 10 、 Figure 11 and Figure 12 As shown, a flushing liquid bag 138 fixedly connected to the driving rod 134 is provided in the vertical slide groove 137, and the upper part of the flushing liquid bag 138 is connected to the reflux pipe 52 through the first spiral tube 522 and the conduit 521 in sequence, and the lower part of the flushing liquid bag 138 passes through the adjacent racks 163 and is connected to the flushing pipe 164 through the second spiral tubes 165 on both sides; the conduit 521 and the flushing pipe 164 are both provided with a second one-way valve, and the second one-way valve is a commercially available device.

[0076] The purification method of this embodiment differs from that of embodiment 2 in that, when the folding plate assembly contracts and expands, the adhesive plate 136 rotates toward the filter plate 32 under the action of the belt drive until the two are in contact with each other. The adhesive plate 136 removes the debris attached to the filter plate 32 from the filter plate 32, thereby maintaining the filtering effect of the filter plate 32.

[0077] When the folding plate assembly is expanded, the driving rod 134 slides upward in the vertical chute 137, thereby stretching the flushing liquid capsule 138 so that the first spiral tube 522 and the guide tube 521 absorb the return water in the return pipe 52. When it is contracted, the driving rod 134 slides downward in the vertical chute 137, thereby squeezing the flushing liquid capsule 138 and transferring the return water through the second spiral tube 165 to the flushing pipe 164, thereby flushing the sludge and the like accumulated under the filter plate 32 to prevent it from affecting the water flow filtration.

[0078] The filter plate 32 drives the fourth gear 321 to rotate forward and reverse, thereby synchronously driving the flushing pipe 164 to move up and down while the filter plate 32 swings up and down. No collision will occur when the filter plate 32 swings, and flushing can be performed up and down, thereby improving flushing efficiency.

Claims

1. A folded plate reactor for sewage purification that can continuously shrink and expand, characterized in that: The invention comprises a shell (1), a folding plate assembly and a plurality of purification assemblies; the folding plate assembly comprises a plurality of upper folding plates (13) connected to the top of the shell (1) in a sliding and sealing manner, and a plurality of lower folding plates (14) connected to the bottom of the shell (1) in a sliding and sealing manner, both sides of the upper folding plates (13) and the lower folding plates (14) are connected to the inner wall of the shell (1) in a sliding and sealing manner, and the upper folding plates (13) and the lower folding plates (14) are staggered with each other; The chamber located between the upper folding plate (13) and the lower folding plate (14) is the purification chamber (3), the chamber located between the side wall of the shell (1) and the upper folding plate (13) is the pretreatment chamber (2), and the chamber located between the side wall of the shell (1) and the lower folding plate (14) is the water outlet chamber (4), and the plurality of purification components are arranged one by one in the corresponding purification chambers (3); The housing (1) is provided with a driving mechanism for driving the folding plate assembly to contract and expand, a water inlet pipe (11) communicating with the pretreatment chamber (2), and a water outlet pipe (12) communicating with the water outlet chamber (4); The driving mechanism comprises a telescopic motor (15) arranged on the outer wall of the housing (1) and a plurality of transmission components for pulling the upper folding plate (13) and the lower folding plate (14) to move in translation; the lower folding plate (14) close to the telescopic motor (15) is fixedly connected to the output end of the telescopic motor (15) via a connecting rod (151); The pretreatment chamber (2) is provided with a first rotating shaft (211) having one end rotatably connected to the inner wall of the pretreatment chamber (2), a first shearing knife (21) and a second rotating shaft (221) sleeved on the first rotating shaft (211) from left to right, and a second shearing knife (22) sleeved on the second rotating shaft (221), the other end of the first rotating shaft (211) is sleeved with a first gear (212), and the second rotating shaft (221) is sleeved with a second gear (222); the outer wall of the housing (1) is provided with a rotating wheel (152) frictionally driven with the connecting rod (151), and the shaft of the rotating wheel (152) passes through the inner wall of the pretreatment chamber (2) and is provided with a third gear (153) meshing with the first gear (212) and the second gear (222); An air bag (26) is provided between the first shearing blade (21) and the second shearing blade (22), and an air bag rod (41) is provided on the inner wall of the water outlet chamber (4). One end of the air bag rod (41) is connected to the air bag (26) via an air transmission tube (261), and the other end of the air bag rod (41) is provided with a clapper (42) for clapping and removing foam on the surface of the sewage.

2. The continuously shrinkable and expandable folded plate reactor for sewage purification according to claim 1, characterized in that: A first through hole is respectively provided on the side wall of the shell (1) corresponding to the upper folding plate (13) and the lower folding plate (14), and a first transverse cavity (16) is provided inside the side wall of the shell (1) corresponding to each first through hole. A first sealing plate (161) for blocking the first through hole is provided in the sliding seal in the first transverse cavity (16) corresponding to the lower folding plate (14), and a second sealing plate (166) for blocking the first through hole is provided in the sliding seal in the first transverse cavity (16) corresponding to the upper folding plate (13); a plurality of slide plates (131) for corresponding to the driving rod (134) fixedly provided on the second sealing plate (166) are provided on the side wall of the shell (1), and a vertical sliding groove (137) for slidingly connecting with the driving rod (134) is provided on the slide plate (131); The transmission assembly comprises a first fixing rod (141), a third fixing rod (142) and a fifth fixing rod (143) which are sequentially arranged on the first sealing plate (161) from top to bottom, and a second fixing rod (132) and a fourth fixing rod (133) which are sequentially arranged on the slide plate (131) from top to bottom. Each first fixing rod (141) and the second fixing rod (132) are hinged via a first hinge rod (144), and each third fixing rod (142) and the fifth fixing rod (143) are hinged via a third hinge rod (145). The third hinged rod (145) is composed of a first support rod and a second support rod hinged together, and each hinge point on the third hinged rod (145) is hinged to the fourth fixed rod (133) through a second hinged rod (146). The driving rod (134) passes through the second sealing plate (166) and is fixedly connected to the upper folding plate (13); the first fixing rod (141) and the third fixing rod (142) pass through the first sealing plate (161) and are fixedly connected to the lower folding plate (14).

3. The continuously shrinkable and expandable folded plate reactor for sewage purification according to claim 2, characterized in that: The purification component includes a microbial sponge (31) and a filter plate (32) arranged in sequence from top to bottom, wherein the two ends of the microbial sponge (31) are respectively connected to the upper folding plate (13) and the lower folding plate (14), and the filter plate (32) is hinged to the side wall of one side of the lower folding plate (14) through a fourth hinge rod.

4. The continuously shrinkable and expandable folded plate reactor for sewage purification according to claim 3, characterized in that: The ends of the first shearing knife (21) and the second shearing knife (22) are each provided with a swinging rod (23) hinged at one end therewith, and a rotating rod (24) rotatably connected to the inner wall of the pretreatment chamber (2) is provided in the pretreatment chamber (2), and the other ends of the two swinging rods (23) are respectively hinged to the two sides of the rotating rod (24), and a plurality of spoilers (25) are sleeved on the rotating rod (24).

5. The continuously shrinkable and expandable folded plate reactor for sewage purification according to claim 4, characterized in that: The bottoms of the plurality of upper folding plates (13) are each provided with an adhesive plate (136) inclined toward one side of the water outlet pipe (12); one end of the adhesive plate (136) is hinged to the upper folding plate (13) via a fifth hinge rod (135); and a detachable nano-adhesive tape is provided on the side of the adhesive plate (136) facing the filter plate (32); The plurality of fifth hinged rods (135) all extend to the outer wall of the shell (1), and one end of the rotating rod (24) extends to the outer wall of the shell (1) and is transmission-connected to each of the fifth hinged rods (135).

6. The continuously shrinkable and expandable folded plate reactor for sewage purification according to claim 3, characterized in that: The top of the shell (1) is provided with a plurality of second through holes corresponding to the purification chambers (3) one by one, and the inside of the shell (1) corresponding to the second through holes is provided with a second transverse cavity and a fourth sealing plate slidingly sealed with the second transverse cavity, and the fourth sealing plate is provided with a foam remover (5), and the foam remover (5) passes through the fourth sealing plate through an absorption liquid bag (51) for absorbing foam, and an elastic frame (311) is provided on the microbial sponge (31), and the two ends of the elastic frame (311) are hinged with the adjacent upper folding plate (13) and lower folding plate (14), and the middle part of the elastic frame (311) is fixedly connected with the absorption liquid bag (51); the foam remover (5) is communicated with the pretreatment chamber (2) through a return pipe (52), and the absorption liquid bag (51) and the return pipe (52) are both provided with a first one-way valve; the return pipe (52) is a retractable tube body.

7. The continuously shrinkable and expandable folded plate reactor for sewage purification according to claim 6, characterized in that: Each of the fourth hinged rods passes through the corresponding first sealing plate (161) and is sleeved with a fourth gear (321); each of the first sealing plates (161) is provided with a third through hole; a vertical cavity and a third sealing plate (162) slidingly and sealingly connected to the vertical cavity are provided inside the side wall of the first sealing plate (161) corresponding to each third through hole; a rack (163) slidingly connected to the first sealing plate (161) is provided on one side of the fourth gear (321); the rack (163) is meshed with the fourth gear (321) for transmission; and a flushing pipe (164) is provided on the rack (163); the flushing pipe (164) passes through the third sealing plate (162) and is fixedly and sealedly connected to the third sealing plate (162); A flushing liquid bag (138) fixedly connected to the driving rod (134) is provided in the vertical slide groove (137). The upper part of the flushing liquid bag (138) is connected to the return pipe (52) through the first spiral tube (522) and the conduit (521) in sequence. The lower part of the flushing liquid bag (138) passes through the adjacent racks (163) and is connected to the flushing pipe (164) through the second spiral tubes (165) on both sides. A second one-way valve is provided on both the conduit (521) and the flushing pipe (164).

8. The continuously shrinkable and expandable folded plate reactor for sewage purification according to claim 4, characterized in that: The spoiler (25) is provided with a plurality of stirring blades (251) rotatably connected to the spoiler (25).

9. The method for purifying sewage using a continuously shrinkable and expandable folded plate reactor according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Sewage is passed through the water inlet pipe (11) into the pretreatment chamber (2), and the telescopic motor (15) is simultaneously turned on to cause the folding plate assembly to continuously contract and expand; when the lower folding plate (14) near the telescopic motor (15) continuously contracts and expands, it drives the first shearing knife (21) and the second shearing knife (22) to shear and crush debris brought by the sewage in the pretreatment chamber (2); S2, the sewage passes through the plurality of purification chambers (3) in sequence and is purified by the purification assembly, and finally enters the water outlet chamber (4) and flows out from the water outlet pipe (12). The airbag rod (41) in the water outlet chamber (4) reciprocates and contracts due to the reciprocating shearing of the first shearing knife (21) and the second shearing knife (22), so that the clapper (42) reciprocates and claps the foam attached to the sewage, thereby achieving defoaming when the water is discharged.

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