Integrated two-stage sewage treatment tank with backwashing

Abstract

The application relates to the sewage filtering technical field and discloses an integrated two-stage sewage treatment tank capable of backwashing, which comprises a filter tank body, a water inlet pipe is arranged through the top outer wall of the filter tank body, a water outlet pipe is arranged through the bottom outer wall of the filter tank body, and a water permeable plate is fixedly installed at the lower part of the inner wall of the filter tank body; a supporting ring body is fixedly installed at the upper part of the inner wall of the filter tank body, a filter plate is fixedly installed at the inner wall of the supporting ring body, and a supporting sleeve is fixedly installed on the top surface of the water permeable plate. During the rotation of the operating rod and the connecting rod, the contact and separation of the push block on the side surface of the connecting rod and the connecting spherical body on the inner wall of the fixed sleeve can realize the reciprocating driving of the guide ring, so that the ultrafiltration membrane can be bent and tightened, the oscillation effect is achieved, the impurities attached to the ultrafiltration membrane can be completely cleaned, the subsequent filtration of the ultrafiltration membrane is more efficient, and the service life of the ultrafiltration membrane is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage filtration technical field, especially to the integrated two-stage sewage treatment tank capable of backwashing. BACKGROUND

[0002] Sewage treatment filtration is a key link for removing suspended solids, colloidal impurities and part of dissolved pollutants in water, and achieves efficient separation of pollutants through physical interception, adsorption and biological synergy.

[0003] In the existing sewage treatment filtration technology, although the backwashing technology is widely used for cleaning the filter material to restore the filtration performance, when facing sewage containing high-hardness particulate matter, such high-hardness particulate matter (such as inorganic sand, metal oxide crystal or silicate / calcium-magnesium compound debris in industrial wastewater) is easy to be embedded in the internal pore structure of the filter material or mechanically stuck in the filter layer gap, and the physical embedding effect is formed by the anti-deformation ability and the roughness of the filter material surface / pore curvature, so that the traditional backwashing process cannot strip it by simply using fluid kinetic energy, thereby causing problems such as attenuation of effective filtration area of the filter material, shortening of backwashing period, abnormal rise of transmembrane pressure difference and fluctuation of effluent water quality, and finally causing the overall efficiency of the filtration system to decline and the operation and maintenance cost to increase.

[0004] Therefore, it is necessary to design the integrated two-stage sewage treatment tank capable of backwashing to solve the above problems. SUMMARY

[0005] The present application relates to the sewage filtration technical field, especially to the integrated two-stage sewage treatment tank capable of backwashing.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] The integrated two-stage sewage treatment tank capable of backwashing comprises a filter tank body, a water inlet pipe is arranged through the top outer wall of the filter tank body, a water outlet pipe is arranged through the bottom outer wall of the filter tank body, and a water permeable plate is fixedly installed on the inner wall of the filter tank body at the lower part;

[0008] A support ring body is fixedly installed on the upper part of the inner wall of the filter tank body, a filter plate is fixedly installed on the inner wall of the support ring body, a support sleeve is fixedly installed on the top surface of the water permeable plate, and an ultrafiltration membrane is arranged between the top surface of the support sleeve and the support ring body;

[0009] A connecting assembly is arranged between the ultrafiltration membrane and the support ring body, a cleaning assembly is arranged on the inner side of the ultrafiltration membrane, and an operating assembly is arranged on the filter plate.

[0010] As a preferred technical scheme of the present application, the connecting assembly comprises a fixed sleeve fixedly installed on the bottom surface of the support ring body, an annular groove is formed in the bottom surface of the fixed sleeve, a guide ring is slidably installed on the inner wall of the annular groove, the top surface of the ultrafiltration membrane is fixedly connected with the bottom surface of the guide ring, a plurality of reset springs arranged in an annular array are fixedly installed between the top surface of the guide ring and the inner top surface of the annular groove.

[0011] As a preferred technical scheme of the present application, the transmission mechanism comprises an inclined arc plate fixedly installed on the top surface of the guide ring, a transmission rod corresponding to the inclined arc plate is through-set on the inner wall of the fixed sleeve, and a connecting ball is fixedly installed at both ends of the transmission rod.

[0012] As a preferred technical scheme of the present application, the transmission rod is L-shaped, and the bottom surface of the ultrafiltration membrane is fixedly connected with the top surface of the support sleeve.

[0013] As a preferred technical scheme of the present application, the cleaning assembly comprises a rotating sleeve rotatably installed on the bottom surface of the filter plate, a plurality of support rods arranged in an annular array are hingedly connected to the outer wall of the rotating sleeve, a connecting rod is hingedly connected to the bottom end of the support rod, a supporting rod is hingedly connected to the bottom end of the connecting rod, the bottom ends of a plurality of supporting rods are hingedly connected to a pull rod, and the bottom end of the pull rod is located on the inner side of the support sleeve.

[0014] As a preferred technical scheme of the present application, the side surface of each of the plurality of support rods is fixedly installed with a cleaning plate, the side surface of the cleaning plate is provided with hard bristles, and the side surface of one of the plurality of connecting rods is fixedly installed with a push block corresponding to the connecting ball.

[0015] As a preferred technical scheme of the present application, the outer wall of the pull rod is provided with two reciprocating threads, shaft flow vanes are screwed in the two reciprocating threads, two fixed magnetic rings corresponding to the shaft flow vanes are fixedly installed on the inner wall of the support sleeve, and the outer wall of the shaft flow vane is provided with flexible bristles.

[0016] As a preferred technical scheme of the present application, the operating assembly comprises an operating rod through-set on the outer wall of the top of the filter tank body, the bottom end of the operating rod is fixedly connected to the top surface of the filter plate, the rotating sleeve and the pull rod in sequence, two slots are symmetrically formed in the outer wall of the operating rod, a shaft rod is rotatably installed on the inner wall of the slot, a limiting rod is fixedly sleeved on the shaft rod, a torsional spring is sleeved on the end portion of the shaft rod, and the two ends of the torsional spring are fixedly connected with the shaft rod and the slot, respectively.

[0017] As a preferred technical scheme of the present application, the top outer wall of the filter tank body is fixedly provided with a plurality of spring telescopic rods arranged in an annular array, and the telescopic ends of the spring telescopic rods are fixedly provided with limiting rings.

[0018] As a preferred technical scheme of the present application, the top end of the operating rod is fixedly provided with a rotating wheel, and the top surface of the supporting ring body is fixedly provided with a liquid guide ring.

[0019] The present application has the following advantages:

[0020] 1. By arranging the filter plate and the ultrafiltration membrane, the sewage first enters the filter plate on the inner wall of the supporting ring body through the liquid guide ring for preliminary filtration to separate out large-particle impurities, and then is subjected to secondary filtration through the ultrafiltration membrane to ensure that the solid impurities in the sewage can be effectively separated, and the sewage filtered twice passes through the water-permeable plate into the water outlet pipe for discharge, realizing two-stage efficient filtration treatment of the sewage and ensuring the water quality, and meanwhile, the filter plate and the ultrafiltration membrane can be effectively cleaned by using the backwashing mode to ensure the filtration effect of the device.

[0021] 2. By arranging the axial flow blade and the supporting sleeve, when the filter plate and the ultrafiltration membrane are blocked and need to be cleaned, the rotating wheel is pulled to move the operating rod upward to drive the pull rod, the axial flow blade moves out of the supporting sleeve and contacts the inner wall of the ultrafiltration membrane, and under the action of water pressure, the axial flow blade is driven to rotate while reciprocating along the pull rod, and the outer wall flexible brush is used to clean the impurities on the inner wall of the ultrafiltration membrane, greatly improving the effect of backwashing and cleaning the ultrafiltration membrane and ensuring the subsequent filtration performance of the ultrafiltration membrane.

[0022] 3. By arranging the operating rod and the cleaning plate, the operating rod is pulled to rotate the brace rod and the supporting rod to the horizontal state, the cleaning plate on the side of the supporting rod is attached to the bottom surface of the filter plate, the rotating wheel is driven to rotate the operating rod and the pull rod, and then the supporting rod, the connecting rod, the brace rod and the rotating sleeve are rotated, the hard brush on the side of the cleaning plate is used to clean the filter holes on the filter plate, impurities blocked in the filter holes can be effectively removed, the cleaning effect of the filter plate is improved, and the filtration efficiency of the filter plate is ensured.

[0023] 4. By arranging the push block and the transmission rod, the push block on the side of the connecting rod contacts the connecting spherical body on the inner wall of the fixed sleeve during the rotation of the operating rod and the connecting rod to realize the reciprocating driving of the guide ring, so that the ultrafiltration membrane can be bent and tightened to play a role of oscillation, impurities attached to the ultrafiltration membrane can be completely removed, the subsequent filtration of the ultrafiltration membrane is more efficient, and the service life of the ultrafiltration membrane is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall structure diagram of the integrated two-stage sewage treatment tank capable of backwashing according to the present application;

[0025] Figure 2 The overall partial cutaway structure schematic view of the integrated two-stage sewage treatment tank with backwashing function provided by the present application;

[0026] Figure 3 The enlarged structure schematic view of the middle A; Figure 2

[0027] Figure 4 The pull rod and operating rod structure schematic view of the integrated two-stage sewage treatment tank with backwashing function provided by the present application;

[0028] Figure 5 The enlarged structure schematic view of the middle B; Figure 4

[0029] Figure 6 The filter tank body internal structure schematic view of the integrated two-stage sewage treatment tank with backwashing function provided by the present application;

[0030] Figure 7 The enlarged structure schematic view of the middle C; Figure 6

[0031] Figure 8 The water permeable plate and support sleeve structure schematic view of the integrated two-stage sewage treatment tank with backwashing function provided by the present application;

[0032] Figure 9 The operating rod top end partial structure schematic view of the integrated two-stage sewage treatment tank with backwashing function provided by the present application;

[0033] Figure 10 The partial cutaway structure schematic view of the integrated two-stage sewage treatment tank with backwashing function provided by the present application;

[0034] Figure 11 The enlarged structure schematic view of the middle D; Figure 10

[0035] Figure 12 The fixed sleeve and guide ring exploded structure schematic view of the integrated two-stage sewage treatment tank with backwashing function provided by the present application.

[0036] ​​​​In the figure: 11, filter tank; 12, water inlet pipe; 13, water outlet pipe; 14, water permeable plate; 21, support ring body; 22, filter plate; 23, support sleeve; 24, ultrafiltration membrane; 25, liquid guide ring; 31, fixed sleeve; 32, annular groove; 33, guide ring; 34, inclined arc plate; 35, transmission rod; 36, connecting ball; 37, return spring; 41, rotating sleeve; 42, support rod; 43, connecting rod; 44, brace rod; 45, pull rod; 46, cleaning plate; 47, pushing block; 51, reciprocating thread; 52, axial flow blade; 53, fixed magnetic ring; 61, operating rod; 62, rotating wheel; 63, slot; 64, shaft; 65, limiting rod; 66, torsional spring; 67, spring telescopic rod; 68, limiting ring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0038] REFERENCE Figure 1 , Figure 2 The integrated two-stage sewage treatment tank capable of backwashing comprises a filter tank 11, a water inlet pipe 12 is arranged through the top outer wall of the filter tank 11, a water outlet pipe 13 is arranged through the bottom outer wall of the filter tank 11, and a water permeable plate 14 is fixedly installed on the inner wall of the filter tank 11.

[0039] A support ring body 21 is fixedly installed on the upper inner wall of the filter tank 11, a filter plate 22 is fixedly installed on the inner wall of the support ring body 21, a support sleeve 23 is fixedly installed on the top surface of the water permeable plate 14, an ultrafiltration membrane 24 is arranged between the top surface of the support sleeve 23 and the support ring body 21, the bottom surface of the ultrafiltration membrane 24 is fixedly connected with the top surface of the support sleeve 23, and a liquid guide ring 25 is fixedly installed on the top surface of the support ring body 21.

[0040] The sewage pipe can be connected with the water inlet pipe 12 on the filter tank 11, so that the sewage can be added into the filter tank 11. When the sewage enters the filter tank 11, the sewage can enter the filter plate 22 on the inner wall of the support ring body 21 under the action of the liquid guide ring 25, so that the large-particle impurities in the sewage are separated from the sewage. After the sewage is preliminarily filtered, the sewage flows through the filter plate 22 and enters the inner side of the ultrafiltration membrane 24, and the ultrafiltration membrane 24 can perform secondary filtration on the sewage when the sewage passes through the ultrafiltration membrane 24, so that the solid impurities in the sewage can be effectively separated. The sewage after twice filtration can pass through the water permeable plate 14 and enter the water outlet pipe 13 to be discharged, so as to realize two-stage filtration treatment of the sewage.

[0041] REFERENCE Figure 2 , Figure 3 andFigure 12 The connection assembly is arranged between the ultrafiltration membrane 24 and the support ring body 21, and comprises a fixed sleeve 31 fixedly installed on the bottom surface of the support ring body 21, an annular groove 32 is formed in the bottom surface of the fixed sleeve 31, a guide ring 33 is slidably installed on the inner wall of the annular groove 32, the top surface of the ultrafiltration membrane 24 is fixedly connected with the bottom surface of the guide ring 33, a plurality of reset springs 37 are fixedly installed between the top surface of the guide ring 33 and the inner top surface of the annular groove 32 in a ring array, and a plurality of sets of transmission mechanisms are arranged on the top surface of the guide ring 33 in a ring array;

[0042] The transmission mechanism comprises an inclined arc plate 34 fixedly installed on the top surface of the guide ring 33, and a transmission rod 35 corresponding to the inclined arc plate 34 is arranged in the inner wall of the fixed sleeve 31 in a penetrating mode, the transmission rod 35 is in an L shape, and a connecting spherical body 36 is fixedly installed at the two ends of the transmission rod 35;

[0043] During the cleaning process, the transmission rod 35 can slide in the radial direction of the fixed sleeve 31, and the connecting spherical body 36 at the bottom end of the transmission rod 35 can drive the inclined arc plate 34 during the sliding process of the transmission rod 35, so that the guide ring 33 slides downward along the annular groove 32, and the guide ring 33 can slide reversely and reset under the action of the reset spring 37, so as to realize the reciprocating driving of the guide ring 33, and the guide ring 33 can bend and tighten the ultrafiltration membrane 24 during the reciprocating sliding process, so as to realize the oscillation of the ultrafiltration membrane 24, so that the impurities attached in the ultrafiltration membrane 24 can be completely cleaned, and the subsequent filtration of the ultrafiltration membrane 24 is more efficient.

[0044] With reference to Figure 4 , Figure 5 , Figure 8 , Figure 10 and Figure 11 The inner side of the ultrafiltration membrane 24 is provided with a cleaning assembly, the cleaning assembly comprises a rotating sleeve 41 rotatably installed on the bottom surface of the filter plate 22, a plurality of support rods 42 are hingedly arranged on the outer wall of the rotating sleeve 41 in a ring array, a connecting rod 43 is hingedly arranged at the bottom end of the support rod 42, a supporting rod 44 is hingedly arranged at the bottom end of the connecting rod 43, a plurality of supporting rods 44 are hingedly arranged at the bottom end of the pull rod 45, the bottom end of the pull rod 45 is located on the inner side of the support sleeve 23, a plurality of cleaning plates 46 are fixedly installed on the side surface of the support rod 42, the side surface of the cleaning plate 46 is provided with hard bristles, and the side surface of one of the connecting rods 43 is fixedly installed with a push block 47 corresponding to the connecting spherical body 36;

[0045] The outer wall of the pull rod 45 is provided with two reciprocating threads 51, and the two reciprocating threads 51 are both screwed with an axial flow blade 52, the inner wall of the support sleeve 23 is fixedly installed with two fixed magnetic rings 53 corresponding to the axial flow blade 52, and the outer wall of the axial flow blade 52 is provided with flexible bristles;

[0046] When the filter tank 11 is used for a period of time, the filter plate 22 and the ultrafiltration membrane 24 may be blocked, at this time, the staff can clean the filter plate 22 and the ultrafiltration membrane 24, when cleaning, the staff can connect the flushing pipe with the water outlet pipe 13, and drive the pull rod 45 to move upward, when the pull rod 45 moves upward, the two axial flow blades 52 on the outer wall of the pull rod 45 can move out of the support sleeve 23, and the flexible brush on the outer wall of the axial flow blade 52 can contact the inner wall of the ultrafiltration membrane 24, when the flushing pipe is opened, the backwashing water can enter the inside of the ultrafiltration membrane 24 along the outside of the ultrafiltration membrane 24 through the water-permeable plate 14, and then pass through the filter plate 22 and discharge along the water inlet pipe 12, and when the flushing water flows through the ultrafiltration membrane 24, the two axial flow blades 52 can be driven under the action of water pressure, the two axial flow blades 52 are screwed with the two reciprocating threads 51 on the outer wall of the pull rod 45, and at this time, the pull rod 45 is in a fixed state, therefore, when the axial flow blade 52 rotates, it can reciprocate along the pull rod 45 through the reciprocating thread 51, so that the axial flow blade 52 can clean the inner wall of the ultrafiltration membrane 24 through the flexible brush on the outer wall, ensuring that the impurities attached to the inner wall of the ultrafiltration membrane 24 can be cleaned, and improving the backwashing effect.

[0047] In the initial state, the support rod 42, the connecting rod 43 and the support rod 44 are in a vertical state, and the support rod 44 can be driven to rotate as the pull rod 45 moves, and after the pull rod 45 is in place, the support rod 44 and the support rod 42 can be rotated to a horizontal state, and at the same time, the cleaning plate 46 on the side of the support rod 42 can be attached to the bottom surface of the filter plate 22, after the axial flow blade 52 cleans the ultrafiltration membrane 24 for a period of time, the staff can drive the pull rod 45 to rotate, and the pull rod 45 can drive the support rod 42, the connecting rod 43, the support rod 44 and the rotating sleeve 41 to rotate when the pull rod 45 rotates, in the process of rotating, the hard brush on the side of the cleaning plate 46 can clean the filter holes on the filter plate 22, and the impurities blocked in the filter holes can be cleaned out, improving the cleaning effect, and in the process of rotating the connecting rod 43, the shifting block 47 on the side of the connecting rod 43 can be in contact with the connecting ball 36 on the inner wall of the fixed sleeve 31 in turn, and the connecting ball 36 and the transmission rod 35 can be driven by cooperating with the movement of the shifting block 47.

[0048] Referring to Figure 6 , Figure 7 , Figure 9The operation assembly is arranged on the filter plate 22, and comprises an operation rod 61 penetrating through the top outer wall of the filter tank body 11 and fixedly connected to the top surface of the pull rod 45 through the filter plate 22 and the rotating sleeve 41, and the bottom end of the operation rod 61 is fixedly connected with a rotating wheel 62, and the outer wall of the operation rod 61 is symmetrically provided with two grooves 63, and the inner wall of the groove 63 is rotatably connected with a shaft rod 64, the shaft rod 64 is fixedly connected with a limiting rod 65, the end of the shaft rod 64 is sleeved with a torsional spring 66, and the two ends of the torsional spring 66 are fixedly connected with the shaft rod 64 and the groove 63, respectively, and the top outer wall of the filter tank body 11 is fixedly connected with a plurality of spring telescopic rods 67 arranged in a ring array, and the telescopic end of the plurality of spring telescopic rods 67 is fixedly connected with a limiting ring 68.

[0049] When the operation rod 61 is pulled, the limiting rod 65 is in a horizontal state under the action of the torsional spring 66 in the initial state, and when the pull rod 45 is pulled through the filter tank body 11, the limiting rod 65 can be rotated into the groove 63 through the shaft rod 64 under the blocking action of the filter tank body 11, so as to ensure that the limiting rod 65 can pass through the filter tank body 11, and the limiting rod 65 can pass through the limiting ring 68, and the limiting rod 65 can be unfolded to be in a horizontal state under the action of the torsional spring 66 after passing through the limiting ring 68, and the position of the operation rod 61 can be fixed by the support of the limiting ring 68, and when the operation rod 61 is rotated through the rotating wheel 62, the limiting rod 65 can move on the top surface of the limiting ring 68, and when the operation rod 61 is reset after the filter tank body 11 is cleaned, the operation rod 61 can be pulled upward by a certain distance, and then the limiting rod 65 is pressed into the groove 63, so that the limiting rod 65 passes through the limiting ring 68 by pressing the operation rod 61 downward, and the limiting rod 65 can pass through the filter tank body 11, so that the operation rod 61 can be pressed to reset, and after the operation rod 61 is reset, the two axial flow blades 52 can re-enter the supporting sleeve 23, and the two axial flow blades 52 can be fixed under the action of the fixed magnetic ring 53, so that the filter tank body 11 can continue to be used for filtering.

[0050] The specific working principle of the application is as follows:

[0051] In use, first, the staff can be connected with the sewage pipe and the filter tank 11 on the inlet pipe 12, that is, the sewage can be added to the filter tank 11, when the sewage into the filter tank 11 under the action of the guide ring 25, the sewage can enter the support ring body 21 inner wall filter plate 22 for preliminary filtration, so that the large particles in the sewage and sewage separation, and the sewage after preliminary filtration flow through the filter plate 22 into the inside of the ultrafiltration membrane 24, and in the sewage through the ultrafiltration membrane 24, the ultrafiltration membrane 24 can be secondary filtration of sewage, to ensure that the solid impurities in the sewage can be effectively separated, and after two filtration of sewage can pass through the water plate 14 into the outlet pipe 13 discharge, so as to realize the two stage filtration treatment of sewage;

[0052] After a period of time, the filter plate 22 and the ultrafiltration membrane 24 may be blocked, at this time the staff can clean the filter plate 22 and the ultrafiltration membrane 24, cleaning can be connected with the flushing pipe and the outlet pipe 13, and the staff can pull the rotating wheel 62, so that the operating rod 61 moves up and drives the pull rod 45 to move up, the pull rod 45 moves up, the two axial flow blades 52 on the outer wall of the pull rod 45 can move out of the support sleeve 23, and the flexible brush on the outer wall of the axial flow blade 52 can contact the inner wall of the ultrafiltration membrane 24, with the opening of the flushing pipe, the backwash water can pass through the water plate 14 along the outside of the ultrafiltration membrane 24 into the inside, and then pass through the filter plate 22 along the inlet pipe 12, and in the flushing water through the ultrafiltration membrane 24, under the action of water pressure, the two axial flow blades 52 can be driven, the two axial flow blades 52 are screwed with the two reciprocating threads 51 on the outer wall of the pull rod 45, and at this time the operating rod 61, the pull rod 45 is in a fixed state, so that the axial flow blade 52 can slide along the pull rod 45 by reciprocating thread 51 when rotating, so that the axial flow blade 52 can clean the inner wall of the ultrafiltration membrane 24 by the flexible brush on the outer wall, so that the impurities attached to the inner wall of the ultrafiltration membrane 24 can be cleaned, improving the effect of backwashing;

[0053] When the operating rod 61 pulls the pull rod 45 to move up, the initial state of the support rod 42, connecting rod 43 and support rod 44 is vertical, and with the movement of the pull rod 45, the support rod 44 can be driven to rotate, and after the pull rod 45 is in place, the support rod 44 and the support rod 42 can be rotated to the horizontal state, and at the same time, the cleaning plate 46 on the side of the support rod 42 can be attached to the bottom surface of the filter plate 22, after a period of time, the staff can drive the rotating wheel 62 to drive the operating rod 61, the pull rod 45 rotates, and the pull rod 45 can drive the support rod 42, the connecting rod 43, the support rod 44 and the rotating sleeve 41 to rotate, in the process of rotating, the hard bristles on the side of the cleaning plate 46 can clean the filter holes on the filter plate 22, so as to clean the impurities in the filter holes, improving the cleaning effect.

[0054] In the process of rotating the connecting rod 43 driven by the operating rod 61, the push block 47 on the side of the connecting rod 43 can be in contact with the connecting ball 36 on the inner wall of the fixed sleeve 31 in turn, and the movement of the push block 47 can drive the connecting ball 36 and the transmission rod 35, so that the transmission rod 35 slides along the radial direction of the fixed sleeve 31, and the connecting ball 36 at the bottom end of the transmission rod 35 can drive the inclined arc plate 34 during the sliding of the transmission rod 35, so that the guide ring 33 slides downward along the annular groove 32, and when the push block 47 is separated from the connecting ball 36, the guide ring 33 can slide reversely and reset under the action of the reset spring 37, so as to realize the reciprocating driving of the guide ring 33, and the guide ring 33 can bend and tighten the ultrafiltration membrane 24 during the reciprocating sliding, so as to play a vibrating role on the ultrafiltration membrane 24, so that the impurities attached in the ultrafiltration membrane 24 can be completely cleaned, and the subsequent filtration of the ultrafiltration membrane 24 is more efficient.

[0055] When the operating rod 61 is pulled, the limiting rod 65 is in a horizontal state under the action of the torsion spring 66 in the initial state, and when the pull rod 45 is pulled through the filter tank body 11, the limiting rod 65 can be rotated into the slot 63 through the shaft 64 under the blocking action of the filter tank body 11, so as to ensure that the limiting rod 65 can pass through the filter tank body 11, and the limiting rod 65 can pass through the limiting ring 68, and the limiting rod 65 can be unfolded to be in a horizontal state under the action of the torsion spring 66 after passing through the limiting ring 68, and the position of the operating rod 61 can be fixed by cooperating with the support of the limiting ring 68, and the limiting rod 65 can move on the top surface of the limiting ring 68 when the operating rod 61 is rotated through the rotating wheel 62, and when the operating rod 61 is reset, the staff can first pull the operating rod 61 upward for a certain distance, and then press the limiting rod 65 into the slot 63, and then press the operating rod 61 downward to make the limiting rod 65 pass through the limiting ring 68, and the limiting rod 65 can pass through the filter tank body 11 in the same way, so as to continue to press the operating rod 61 to reset, and after the reset of the operating rod 61 is completed, the two axial flow blades 52 can re-enter the supporting sleeve 23, and the two axial flow blades 52 can be fixed under the action of the fixed magnetic ring 53, so that the filter tank body 11 can continue to be used for filtration.

[0056] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An integrated two-stage wastewater treatment tank capable of backwashing, characterized in that, The filter includes a filter tank (11), with an inlet pipe (12) extending through the top outer wall of the filter tank (11), an outlet pipe (13) extending through the bottom outer wall of the filter tank (11), and a permeable plate (14) fixedly installed on the lower part of the inner wall of the filter tank (11). A support ring (21) is fixedly installed on the upper part of the inner wall of the filter tank (11), a filter plate (22) is fixedly installed on the inner wall of the support ring (21), a support sleeve (23) is fixedly installed on the top surface of the permeable plate (14), and an ultrafiltration membrane (24) is provided between the top surface of the support sleeve (23) and the support ring (21). A connecting component is provided between the ultrafiltration membrane (24) and the support ring (21), a cleaning component is provided on the inner side of the ultrafiltration membrane (24), and an operating component is provided on the filter plate (22). The connecting assembly includes a fixed sleeve (31) fixedly installed on the bottom surface of the support ring (21). The bottom surface of the fixed sleeve (31) is provided with an annular groove (32). A guide ring (33) is slidably installed on the inner wall of the annular groove (32). The top surface of the guide ring (33) is provided with several sets of transmission mechanisms arranged in an annular array. The transmission mechanism includes a sloping arc plate (34) fixedly installed on the top surface of the guide ring (33), and a transmission rod (35) corresponding to the sloping arc plate (34) is provided through the inner wall of the fixed sleeve (31). Both ends of the transmission rod (35) are fixedly installed with connecting balls (36). The cleaning assembly includes a rotating sleeve (41) rotatably mounted on the bottom surface of the filter plate (22). The outer wall of the rotating sleeve (41) is hinged with a plurality of support rods (42) arranged in a ring array. The bottom end of the support rods (42) is hinged with a connecting rod (43). The bottom end of the connecting rods (43) is hinged with a support rod (44). The bottom end of the plurality of support rods (44) is hinged with a pull rod (45). The bottom end of the pull rod (45) is located inside the support sleeve (23). The sides of the plurality of support rods (42) are fixedly mounted with cleaning plates (46). The sides of the cleaning plates (46) are provided with hard bristles. The side of one of the connecting rods (43) is fixedly mounted with a paddle (47) corresponding to the connecting ball (36). The top surface of the ultrafiltration membrane (24) is fixedly connected to the bottom surface of the guide ring (33), and a number of reset springs (37) arranged in a ring array are fixedly installed between the top surface of the guide ring (33) and the inner top surface of the annular groove (32).

2. The integrated two-stage wastewater treatment tank capable of backwashing according to claim 1, characterized in that, The transmission rod (35) is L-shaped, and the bottom surface of the ultrafiltration membrane (24) is fixedly connected to the top surface of the support sleeve (23).

3. The integrated two-stage wastewater treatment tank capable of backwashing according to claim 2, characterized in that, The outer wall of the pull rod (45) is provided with two reciprocating threads (51), and axial flow blades (52) are screwed into both reciprocating threads (51). Two fixed magnetic rings (53) corresponding to the axial flow blades (52) are fixedly installed on the inner wall of the support sleeve (23). The outer wall of the axial flow blades (52) is provided with flexible bristles.

4. The integrated two-stage wastewater treatment tank capable of backwashing according to claim 3, characterized in that, The operating component includes an operating rod (61) that passes through the top outer wall of the filter tank (11). The bottom end of the operating rod (61) passes through the filter plate (22), the rotating sleeve (41), and is fixedly connected to the top surface of the pull rod (45). Two slots (63) are symmetrically opened on the outer wall of the operating rod (61). A shaft (64) is rotatably installed on the inner wall of the slot (63). A limit rod (65) is fixedly fitted on the shaft (64). A torsion spring (66) is fitted on the end of the shaft (64), and the two ends of the torsion spring (66) are fixedly connected to the shaft (64) and the slot (63) respectively.

5. The integrated two-stage wastewater treatment tank capable of backwashing according to claim 4, characterized in that, The top outer wall of the filter tank (11) is fixedly equipped with a number of spring telescopic rods (67) arranged in a ring array, and the telescopic ends of the spring telescopic rods (67) are fixedly equipped with limit rings (68).

6. The integrated two-stage wastewater treatment tank capable of backwashing according to claim 5, characterized in that, A rotating wheel (62) is fixedly installed at the top of the operating lever (61), and a liquid guiding ring (25) is fixedly installed on the top surface of the support ring (21).

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