Chemical production wastewater treatment device

Abstract

The invention discloses a chemical industry production wastewater treatment device, and relates to the technical field of sewage treatment equipment. The fixing assembly is arranged in the reaction tank and comprises an upper fixing plate and a lower fixing plate which are arranged side by side up and down, each of the first membrane bundle and the second membrane bundle is formed by arranging a plurality of membrane filaments in parallel, and two ends of the first membrane bundle and two ends of the second membrane bundle are respectively fixed on the upper fixing plate and the lower fixing plate; and the first film bundle and the second film bundle are provided with at least one cross contact point at the part between the upper fixing plate and the lower fixing plate. By arranging the fixing assembly, the restraining assembly and the driving mechanism, the driving assembly drives the restraining assembly to act, so that the position of a cross contact point is continuously changed, the adjacent first membrane bundle and second membrane bundle rub against each other, and the membrane wire self-cleaning is comprehensively achieved.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, in particular to a chemical production wastewater treatment device. Background Art

[0002] At present, many wastewater treatment projects aim at "zero emission", but coal tar wastewater has complex water quality, with the characteristics of high ammonia nitrogen, high oil content, high toxicity and low B / C ratio. It is a high-difficulty industrial wastewater. The main treatment processes for this type of wastewater are pretreatment, physicochemical treatment, biochemical treatment and deep treatment. Among them, biochemical treatment is mainly achieved through A / O and AA / O processes or MBR membrane bioreactors.

[0003] Among them, the MBR membrane bioreactor has a high-efficiency water treatment capacity and a small output of residual sludge, but the service life of the membrane component is limited and needs to be replaced when it expires. In the patent with patent number CN117185475B, an MBR membrane bioreactor sewage treatment device is proposed, which reciprocates through a reciprocating tooth plate, and the reciprocating tooth plate slides on a sliding seat through a sliding groove. The reciprocating tooth plate contacts with the gear, and the gear rotates. The centrifugal force generated by the rotation of the gear is used to throw off the dirt adsorbed on the MBR membrane tube, thereby reducing the stains adsorbed on the MBR membrane tube. A brush is also provided to clean the surface of the MBR membrane tube to avoid impurities condensing on the surface of the MBR membrane tube, thereby improving the treatment efficiency of the MBR membrane and extending the replacement cycle.

[0004] However, when the equipment is in use, the cleaning component can only clean the MBR membrane tubes on the outside of the transmission mechanism. For the membrane tubes on the inside, the membrane tubes are close to each other, and the centrifugal force cannot be used to remove the sludge from the surface of the MBR membrane tubes, and the brush cannot clean the inner MBR membrane tubes. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a chemical production wastewater treatment device, which solves the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a chemical production wastewater treatment device, including a base and membrane filaments, a reaction pool is opened in the base, and also includes: a fixing component, the fixing component is arranged in the reaction pool, the fixing component includes an upper fixing plate and a lower fixing plate arranged side by side; a first membrane bundle and a second membrane bundle, the first membrane bundle and the second membrane bundle are both composed of a plurality of membrane filaments arranged in parallel, the two ends of the first membrane bundle and the second membrane bundle are respectively fixed to the upper fixing plate and the lower fixing plate, and the first membrane bundle and the second membrane bundle have at least one cross-contact point in the position between the upper fixing plate and the lower fixing plate; a driving mechanism, the driving mechanism is arranged between the upper fixing plate and the lower fixing plate, and the driving mechanism is used to drive the first membrane bundle and the second membrane bundle to move, so as to continuously change the position of the cross-contact point, so that the first membrane bundle and the second membrane bundle rub against each other to remove impurities on their own surfaces.

[0007] Furthermore, it also includes a constraint component, which is arranged between the upper fixed plate and the lower fixed plate, and the constraint component includes: a constraint disk, which is arranged between the upper fixed plate and the lower fixed plate, and a connecting rod is also fixed between the upper fixed plate and the lower fixed plate, and the connecting rod passes through the constraint disk and is fixedly connected to the constraint disk; a sliding groove, which is opened on the constraint disk, and there are multiple sliding grooves, and the multiple sliding grooves are arranged in a ring array about the axis of the constraint disk; a constraint ring sleeve, a constraint ring sleeve is slidably arranged in each of the sliding grooves, and two adjacent constraint ring sleeves are respectively located at one end of the sliding groove close to the axis of the constraint disk and the other end away from the axis of the constraint disk; adjacent first membrane bundles and second membrane bundles pass through two adjacent sliding grooves respectively, and the parts of the first membrane bundles and the second membrane bundles located in the sliding grooves are fixedly connected to the constraint ring sleeves; each of the first membrane bundles and the second membrane bundles has a cross contact point on both sides of the constraint disk in the vertical direction.

[0008] Furthermore, the driving mechanism includes: a sliding shaft, the sliding shaft is arranged in the reaction tank, and the upper fixed plate, the lower fixed plate and the constraint disk are all rotatably arranged on the outer circumferential surface of the sliding shaft; a fixed block, the fixed block is arranged in the sliding groove and is fixedly connected to the constraint disk, and the fixed block is located in the sliding groove at one end away from the corresponding constraint ring sleeve, and a gap space is left between the fixed block and the inner wall of the sliding groove; a spring, the spring is arranged in the sliding groove, and one end of the spring is fixedly connected to the constraint ring sleeve, and the other end is fixedly connected to the fixed block; a through groove, the through groove is opened on the side wall of the sliding groove, and the through groove is used to connect two adjacent sliding grooves. A groove; a pull rope, the pull rope is arranged on the constraint disk, the pull rope has a fixed end and a free end, the fixed end is fixedly connected to the fixed block or the constraint ring sleeve, the free end passes through one of the constraint ring sleeves, the through groove, the adjacent constraint ring sleeve, the fixed block, the adjacent through groove and the adjacent fixed block in sequence, and the process is repeated until it passes through all the constraint ring sleeves, and then the free end is led out to the axis center of the sliding shaft; a winding assembly, the winding assembly is arranged between the constraint disk and the sliding shaft, the free end of the pull rope is fixedly connected to the winding assembly, and the winding assembly is used to reel in or unreel the pull rope so that the constraint ring sleeve slides in the sliding groove.

[0009] Furthermore, the winding assembly includes: a mounting plate, the axis of which is fixedly connected to the sliding shaft, and the mounting plate is arranged near the constraint plate; a winding column, the winding column is rotatably mounted on the surface of the constraint plate, and the free end of the pull rope is fixedly connected to the winding column; a winding gear, the winding gear is fixedly arranged on the surface of the winding column away from the constraint plate, and a sliding column is fixedly arranged on the surface of the winding gear away from the winding column; an annular groove, the annular groove is provided on the surface of the mounting plate near the constraint plate, and the sliding column can slide in the annular groove; an inner ring arc gear, the inner ring arc The inner arc gear is fixed on the surface of the mounting plate close to the constraint plate, and the inner arc gear is located on the side of the annular groove close to the axis of the mounting plate, and the inner arc gear can mesh with the inside of the winding gear; the outer arc gear, the outer arc gear is fixed on the surface of the mounting plate close to the constraint plate, and the outer arc gear is located on the side of the annular groove away from the axis of the mounting plate, and the outer arc gear can mesh with the outside of the winding gear; the winding gear is disengaged from the inner arc gear and meshed with the outer arc gear, and the winding gear is meshed with the inner arc gear when it is disengaged from the outer arc gear.

[0010] Furthermore, the constraint ring sleeve is composed of a glue layer, a sleeve layer and a through hole; the glue layer is used to fix multiple membrane filaments, and the glue layer is made of a flexible material; the sleeve layer is sleeved on the middle part of the constraint ring sleeve, and the sleeve layer is made of a rigid material; the diameter of the sleeve layer is smaller than the diameter of the first membrane bundle or the second membrane bundle located outside the sliding groove, so that the constraint ring sleeve forms a step portion on both sides of the sliding groove; the through hole is opened on the sleeve layer and passes through the constraint ring sleeve.

[0011] Furthermore, a central column is fixedly provided at the center of the reaction pool, and the fixing components, the restraining components and the driving mechanism are provided in multiple groups and are arranged in a ring array about the axis of the central column.

[0012] Furthermore, a planetary gear is fixedly connected to the upper surface of each upper fixed plate, a sun gear is fixedly provided on the outer peripheral surface of the center column, and the planetary gear is meshed with the sun gear; an outer gear ring is provided on the side of the planetary gear away from the sun gear, and the planetary gear is meshed with the outer gear ring; a driving device is provided on the base, and the driving device is used to drive the outer gear ring to rotate.

[0013] Furthermore, a rotating disk is provided below the lower fixed plate, the lower fixed plate is rotatably mounted on the rotating disk, and the rotating disk is rotatably connected to the center column; the bottom end of the sliding shaft passes through the rotating disk; a ring rail is fixedly provided at the bottom of the reaction pool, and an arc groove is opened at the bottom end of the sliding shaft, and the arc groove can slide on the ring rail.

[0014] Furthermore, at least one reaction pool is provided; a water channel is provided between two adjacent reaction pools, the water outlet area of ​​the water channel is smaller than the water inlet area; a water baffle is provided in the reaction pool, and the distance between the water baffle and the inner wall of the reaction pool gradually increases along the rotation direction of the outer gear ring.

[0015] Furthermore, a second connecting water pipe is fixedly provided on the planetary wheel, and the first membrane bundle and the second membrane bundle are connected to the second connecting water pipe; a second annular water pipe is rotatably provided at the top end of the sliding shaft, and the second annular water pipe is connected to the second connecting water pipe; a first annular water pipe is rotatably provided at the top end of the central column, and the second annular water pipe is connected to the first connecting water pipe, and the first connecting water pipe is connected to the first annular water pipe; the first annular water pipe is connected to the water collecting pipe.

[0016] The present invention has the following beneficial effects: (1) The chemical production wastewater treatment device installs the first membrane bundle and the second membrane bundle on the fixing component by setting a fixing component, a constraint component and a driving mechanism, and arranges the first membrane bundle and the second membrane bundle in a cross-type between the upper fixing component through the constraint component, so that the first membrane bundle and the second membrane bundle have at least one cross-contact point between the upper fixing plate and the lower fixing plate, and then drives the constraint component to move through the driving component, so that the position of the cross-contact point is constantly changed, so that the adjacent first membrane bundle and the second membrane bundle rub against each other, thereby fully realizing the self-cleaning of the membrane filaments, and also having a cleaning effect on the inner membrane filaments.

[0017] (2) The chemical production wastewater treatment device arranges the fixed components, the constraint components and the driving mechanism in a circular array about the axis of the central column, and sets an outer gear ring to drive the planetary gear to rotate, thereby driving all the membrane filaments to rotate around the central column, thereby forming a staggered flow on the surface of the membrane filament, generating shear force and disturbance force, so that large molecules such as biological aggregates are separated from the surface of the membrane filament, and further extending the operation cycle of the membrane filament.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of a single reaction tank of the present invention; Figure 3 It is the internal structure diagram of the reaction tank of the present invention; Figure 4 It is a schematic diagram of the installation position of the fixing assembly and the restraining plate of the present invention; Figure 5 It is a schematic diagram of the layout of the first membrane bundle and the second membrane bundle of the present invention; Figure 6 It is a schematic diagram of the structure of the driving mechanism and the constraint assembly of the present invention; Figure 7 A top view of the driving mechanism and the constraint assembly of the present invention; Figure 8 It is a schematic diagram of the layout of the pull rope, the fixing block and the restraining ring sleeve of the present invention; Fig. 9 It is a schematic diagram of the cooperation between the pull rope, the restraint ring sleeve and the restraint disk of the present invention; Fig.10 This is a cross-sectional view of the slideway structure of the present invention; Fig.11 For the present invention Figure 7 Enlarged schematic diagram of area A in the middle; Fig.12 It is a schematic diagram of the coordination between the winding gear, the inner ring arc gear and the outer ring arc gear of the present invention; Fig.13 It is a cross-sectional view of the restraining ring structure of the present invention; Fig.14 It is a front cross-sectional view of the lower fixed plate and the rotating disk of the present invention; Fig.15 It is a schematic cross-sectional view of the reaction pool structure of the present invention; Fig.16 It is a schematic diagram of the layout of the reaction pool of the present invention; Fig.17 It is a schematic diagram of the top structure of the central column of the present invention.

[0020] In the figure, 1, base; 2, reaction tank; 3, gas pipe; 4, aeration pipe; 5, water collection pipe; 6, first annular water pipe; 61, first connecting water pipe; 7, second annular water pipe; 71, second connecting water pipe; 8, driving device; 9, outer gear ring; 10, planetary gear; 11, sun gear; 12, upper support platform; 13, center column; 14, water baffle; 15, water trough; 16, upper fixed plate; 17, lower fixed plate; 18, restraining plate; 181, sliding groove; 182, through groove; 183, gap space; 19, connecting rod; 20, membrane wire; 201. First membrane bundle; 202. Second membrane bundle; 21. Constraint ring; 211. Glue layer; 212. Sleeve layer; 213. Through hole; 214. Step portion; 22. Rotating disk; 23. Mounting disk; 231. Ring groove; 24. Sliding shaft; 241. Arc groove; 25. Pull rope; 26. First guide block; 261. Second guide block; 27. Fixed block; 28. Spring; 29. ​​Inner ring arc gear; 30. Outer ring arc gear; 31. Winding gear; 311. Sliding column; 32. Winding column; 33. Elastic rod; 34. Ring rail. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] According to the following Figure 1 - Fig.17 A chemical production wastewater treatment device provided by an embodiment of the present invention is described.

[0023] See also Figure 1 - Figure 6 The embodiment of the present invention provides a technical solution: a chemical production wastewater treatment device, including a base 1 and membrane fibers 20. The base 1 can be fixed or movable. The membrane fibers 20 are membrane fibers used in MBR membranes. A reaction tank 2 is opened in the base 1, and the reaction tank 2 is used to temporarily store the sewage to be treated.

[0024] It also includes a fixing component, which is arranged inside the reaction tank 2. The fixing component includes an upper fixing plate 16 and a lower fixing plate 17 arranged side by side. Side by side means that the axes of the upper fixing plate 16 and the lower fixing plate 17 are located on the same vertical line. The fixing component is used to fix the position of the membrane filament 20.

[0025] In addition, it also includes a first membrane bundle 201 and a second membrane bundle 202. The first membrane bundle 201 and the second membrane bundle 202 are both composed of a plurality of membrane filaments 20 arranged in parallel. The diameter of the combined first membrane bundle 201 and the second membrane bundle 202 is preferably between 1 cm and 3 cm, and the two ends of the first membrane bundle 201 and the second membrane bundle 202 are respectively fixed on the upper fixed plate 16 and the lower fixed plate 17, and there are multiple groups of the first membrane bundle 201 and the second membrane bundle 202 arranged in an array about the axis of the upper fixed plate 16. The length of the first membrane bundle 201 and the second membrane bundle 202 is greater than the distance between the upper fixed plate 16 and the lower fixed plate 17, so that the first membrane bundle 201 and the second membrane bundle 202 have a length margin, and the first membrane bundle 201 and the second membrane bundle 202 have at least one cross-contact point between the upper fixed plate 16 and the lower fixed plate 17. In fact, the structures of the first membrane bundle 201 and the second membrane bundle 202 are exactly the same, but there is a difference in the spatial arrangement of the two.

[0026] Specifically, the first membrane bundle 201 and the second membrane bundle 202 can be staggered with the fixing points of the upper fixed plate 16, that is, the distance between the fixing point of the first membrane bundle 201 and the upper fixed plate 16 and the axis center of the upper fixed plate 16 is smaller than the distance between the fixing point of the second membrane bundle 202 and the upper fixed plate 16 and the axis center of the upper fixed plate 16, and the two can also be staggered with the fixing points of the lower fixed plate 17, that is, the distance between the fixing point of the first membrane bundle 201 and the lower fixed plate 17 and the axis center of the lower fixed plate 17 is larger than the distance between the fixing point of the second membrane bundle 202 and the lower fixed plate 17 and the axis center of the lower fixed plate 17, so that the first membrane bundle 201 and the second membrane bundle 202 are distributed in an "X" shape in space. This description is only exemplary and does not limit the specific positions of the first membrane bundle 201 and the second membrane bundle 202.

[0027] In addition, it also includes a driving mechanism, which is arranged between the upper fixed plate 16 and the lower fixed plate 17, and the driving mechanism pulls the first membrane bundle 201 and the second membrane bundle 202 in the horizontal direction respectively, so as to drive the first membrane bundle 201 and the second membrane bundle 202 to move, so as to continuously change the position of the cross-contact point, and then make the first membrane bundle 201 and the second membrane bundle 202 rub against each other, so as to achieve the effect of removing sludge on their own surfaces, and because the first membrane bundle 201 and the second membrane bundle 202 are in contact with each other, the accumulation of sludge on the surface of the membrane filament 20 can also be avoided.

[0028] Combination Figure 4 - Figure 7 In order to ensure that there is at least one cross-contact point between the upper fixed plate 16 and the lower fixed plate 17 for the first membrane bundle 201 and the second membrane bundle 202, a constraint component is also provided, and the constraint component is provided in the part between the upper fixed plate 16 and the lower fixed plate 17.

[0029] The restraint assembly includes a restraint plate 18, which is arranged between the upper fixed plate 16 and the lower fixed plate 17. A connecting rod 19 is also fixed between the upper fixed plate 16 and the lower fixed plate 17, and the connecting rod 19 passes through the restraint plate 18 and is fixedly connected to the restraint plate 18, so that the restraint plate 18, the upper fixed plate 16 and the lower fixed plate 17 rotate together as a whole.

[0030] In addition, a sliding groove 181 is provided on the surface of the constraint disk 18. There are multiple sliding grooves 181, and the multiple sliding grooves 181 are arranged in a circular array about the axis of the constraint disk 18. The number of sliding grooves 181 is the same as the sum of the number of first membrane bundles 201 and second membrane bundles 202, that is, each first membrane bundle 201 and second membrane bundle 202 corresponds to a sliding groove 181, and the distance between the sliding grooves 181 needs to be adjusted according to the diameter of the membrane bundle. The specific requirement is that when the membrane bundles move along the sliding grooves 181, they will neither get stuck due to being too close to each other, nor will they be unable to contact and rub each other due to being too far away.

[0031] In addition, a restraining ring 21 is slidably arranged in each sliding groove 181, and the restraining ring 21 is used to gather the first membrane bundle 201 or the second membrane bundle 202 passing through the sliding groove 181, so as to avoid the first membrane bundle 201 or the second membrane bundle 202 from rubbing against the inner wall of the sliding groove 181 to damage the membrane filament 20. Preferably, two adjacent restraining rings 21 are respectively located at one end of the sliding groove 181 close to the axis of the restraining disk 18 and the other end away from the axis of the restraining disk 18, so that the adjacent first membrane bundle 201 and the second membrane bundle 202 are staggered when passing through the sliding groove 181 (refer to Figure 5 as shown).

[0032] Specifically, the parts of the first membrane bundle 201 and the second membrane bundle 202 located in the sliding groove 181 are fixedly connected to the restraining ring 21 , so that the first membrane bundle 201 and the second membrane bundle 202 move synchronously with the restraining ring 21 .

[0033] In this embodiment, the number of circles of the sliding groove 181 can be adjusted according to the area of ​​the reaction tank 2. If a circle of sliding groove 181 opened on the surface of the restraint disk 18 is regarded as one circle, then when the area of ​​the reaction tank 2 is large, multiple circles of sliding groove 181 can be set, that is, multiple circles of sliding groove 181 are set at positions of different radii on the surface of the restraint disk 18, so as to achieve the purpose of increasing the number of membrane bundles and improving the sewage treatment capacity. Two circles are set in the figure.

[0034] In addition, the number of restraint disks 18 can be adjusted with the depth of the reaction pool 2, and one or more restraint disks 18 can be set. In the figure, five restraint disks are set. When multiple restraint disks 18 are set, it can be considered that each restraint disk 18 only has a change in height, but no change in angle, that is, the sliding grooves 181 on each restraint disk 18 are all on the same straight line, and the membrane bundles are still arranged in an "X" shape between the restraint disks 18. For example, if the first membrane bundle 201 passes through the restraint disk 18 of the upper layer and is fixedly connected to the restraint ring sleeve 21 in the sliding groove 181 close to the axis of the restraint disk 18, then when the first membrane bundle 201 reaches the next restraint disk 18, it is fixedly connected to the restraint ring sleeve 21 in the sliding groove 181 away from the axis of the restraint disk 18, and the restraint ring sleeve 21 minimizes the deflection angle of the first membrane bundle 201. Correspondingly, the second membrane bundle 202 closest to the first membrane bundle 201 is fixedly connected to the constraint ring sleeve 21 in the sliding groove 181 away from the axis of the constraint disk 18, and when the first membrane bundle 201 reaches the next constraint disk 18, it is fixedly connected to the constraint ring sleeve 21 in the sliding groove 181 close to the axis of the constraint disk 18. Multiple groups of first membrane bundles 201 and second membrane bundles 202 are arranged in this way. When reaching the next constraint disk 18, the first membrane bundle 201 is fixedly connected to the constraint ring sleeve 21 in the sliding groove 181 close to the axis of the constraint disk 18, and the second membrane bundle 202 also changes accordingly. Then, as the number of constraint disks 18 increases, the above process is repeated, so that each first membrane bundle 201 and second membrane bundle 202 has a cross-contact point on both sides of the constraint disk 18 in the vertical direction.

[0035] Combination Figure 4 - Fig.10 The driving mechanism includes a sliding shaft 24, which is arranged in the reaction tank 2, and the upper fixed plate 16, the lower fixed plate 17 and the restraint disk 18 are all rotatably arranged on the outer circumference of the sliding shaft 24, so that the upper fixed plate 16, the lower fixed plate 17, the restraint disk 18, the first membrane bundle 201 and the second membrane bundle 202 all rotate around the sliding shaft 24.

[0036] In addition, a fixed block 27 is provided in the sliding groove 181, one side of the fixed block 27 is fixed on the constraint disk 18, and the fixed block 27 is located at one end of the sliding groove 181 away from the corresponding constraint ring sleeve 21, that is, a fixed block 27 and a constraint ring sleeve 21 are respectively provided at both ends of a sliding groove 181, and a gap space 183 is left between the fixed block 27 and the inner wall of the sliding groove 181.

[0037] In addition, a spring 28 is provided in the slide groove 181 , one end of the spring 28 is fixedly connected to the restraining ring sleeve 21 , and the other end is fixedly connected to the fixing block 27 . The spring 28 always applies a thrust to the restraining ring sleeve 21 away from the fixing block 27 .

[0038] In addition, a through groove 182 is further provided on the side wall of the sliding groove 181 , and two adjacent sliding grooves 181 can be connected through the through groove 182 .

[0039] In addition, in order to drive the restraining ring 21 to move, a pull rope 25 is further provided on the restraining disk 18. The pull rope 25 has a fixed end and a free end. The fixed end of the pull rope 25 can be fixedly connected to the fixing block 27 or the restraining ring 21, and the free end sequentially passes through a restraining ring 21, a through groove 182, an adjacent restraining ring 21, a fixing block 27, an adjacent through groove 182 and an adjacent fixing block 27, and the process is repeated until it passes through all the restraining rings 21, as an exemplary description (refer to Figure 8 As shown), the fixed end of the pull rope 25 is fixedly connected to a fixed block 27, and the free end of the pull rope 25 starts from this fixed block 27 and extends from the hollow part of the spring 28 to the constraint ring sleeve 21 in the sliding groove 181 where the fixed block 27 is located, and then the free end passes through the constraint ring sleeve 21 in the diameter direction and winds out along one side of the constraint ring sleeve 21, and then the free end passes through the through groove 182 to the adjacent sliding groove 181, and passes out from the constraint ring sleeve 21 in the sliding groove 181, and then extends along the hollow part of the spring 28 in the sliding groove 181 to the corresponding fixed block 27, and then passes from the fixed block 27 and extends through the corresponding through groove 182 to the next sliding groove 181, and then repeats this process until the pull rope 25 passes through all the constraint ring sleeves 21, and then is led out from the last sliding groove 181 and extends to the winding assembly, and is fixed to the winding assembly.

[0040] Combination Figure 7 - Fig.12 The above-mentioned winding assembly is arranged between the constraint disk 18 and the sliding shaft 24, and the free end of the pull rope 25 is fixedly connected to the winding assembly. The winding assembly is used to reel in or unreel the pull rope 25, so that all the constraint rings 21 are pulled by the pull rope 25 to move in the sliding groove 181, and then the first membrane bundle 201 and the second membrane bundle 202 are staggered and rubbed against each other. When the pull rope 25 is reeled in, the constraint ring 21 compresses the spring 28, and when the pull rope 25 is unreeled, the spring 28 drives the constraint ring 21 to reset.

[0041] Specifically, the winding assembly includes a mounting plate 23, the axis of the mounting plate 23 is fixedly connected to the sliding shaft 24, and the mounting plate 23 is located at a height close to the restraining plate 18, and the mounting plate 23 is used to install the winding assembly.

[0042] In addition, a winding column 32 is also installed on the surface of the restraint disk 18. The winding column 32 is rotatably connected to the restraint disk 18, and the free end of the pull rope 25 is fixed to the winding column 32. Preferably, the winding column 32 is arranged at a position close to the axis of the restraint disk 18 to leave more space for installing the membrane bundle. In order to facilitate the fixation of the pull rope 25 to the winding column 32, a first guide block 26 can be fixed on the surface of the restraint disk 18 near the sliding groove 181, and a second guide block 261 can be fixed near the winding column 32, and the pull rope 25 is passed through the first guide block 26 and the second guide block 261 in turn, thereby guiding and supporting the pull rope 25.

[0043] In addition, a winding gear 31 is fixedly provided on the surface of the winding column 32 on the side away from the constraint disk 18, and the winding column 32 rotates together with the winding gear 31. A sliding column 311 is fixedly provided on the surface of the winding gear 31 on the side away from the winding column 32. Correspondingly, an annular groove 231 is opened on the surface of the mounting disk 23 close to the constraint disk 18, and the sliding column 311 can slide in the annular groove 231, so that when the constraint disk 18 rotates, the winding column 32 rotates around the sliding shaft 24. During this process, the sliding shaft 24 is in a stationary state relative to the mounting disk 23.

[0044] Furthermore, in order to drive the winding gear 31 to rotate, an inner arc gear 29 is fixedly provided on the surface of the mounting disk 23 on the side close to the restraining disk 18, and the inner arc gear 29 can mesh with the inside of the winding gear 31. Accordingly, an outer arc gear 30 is fixedly provided on the surface of the mounting disk 23 on the side close to the restraining disk 18, and the outer arc gear 30 can mesh with the outside of the winding gear 31. Thus, when the mounting disk 23 drives the winding gear 31 to rotate along the annular groove 231, the winding gear 31 can rotate under the action of meshing with the inner arc gear 29 or the outer arc gear 30. Since the inner arc gear 29 or the outer arc gear 30 are respectively located on different sides of the winding gear 31, the rotation of the winding gear 31 when meshing with the inner arc gear 29 The direction is opposite to the rotation direction when meshing with the outer arc gear 30, and the sum of the angle occupied by the arc length of the inner arc gear 29 about the axis of the sliding shaft 24 and the angle occupied by the outer arc gear 30 about the axis of the sliding shaft 24 is 360°, so that the winding gear 31 is disengaged from the inner arc gear 29 or the outer arc gear 30, and is just meshed with the outer arc gear 30 or the inner arc gear 29. Preferably, the inner arc gear 29 and the outer arc gear 30 have the same number of teeth, so that the angle of rotation of the winding gear 31 when passing through the inner arc gear 29 is the same as the angle of rotation when passing through the outer arc gear 30, so that when the mounting disk 23 rotates one circle, the winding amount and unwinding amount of the pull rope 25 are the same, avoiding excessive stretching of the pull rope 25.

[0045] In this embodiment, two pull ropes 25 can be provided, that is, a circle of the restraining ring 21 on a restraining disk 18 is divided into two groups, each group is pulled by a pull rope 25, and at this time, the winding gear 31 and the winding column 32 can be symmetrically provided with two groups about the axis of the sliding shaft 24, and the free ends of the two pull ropes 25 are respectively fixed to the two winding columns 32 (refer to Figure 8 As shown), the pulling length of the pull rope 25 when the constraint disk 18 rotates one circle can be increased. The pulling length can be adjusted more accurately by adjusting the module of the winding gear 31, the inner ring arc gear 29 and the outer ring arc gear 30.

[0046] Combination Fig. 9 and Fig.15 In order to facilitate the first membrane bundle 201 and the second membrane bundle 202 to slide along the sliding groove 181, the constraint ring sleeve 21 is preferably composed of a glue layer 211, a sleeve layer 212 and a through hole 213, wherein the glue layer 211 is used to fix the plurality of membrane filaments 20, and the glue layer 211 is a flexible material, optionally such as polyurethane glue or silicone, the sleeve layer 212 is sleeved on the middle part of the constraint ring sleeve 21, and the sleeve layer 212 is a rigid material, optionally such as corrosion-resistant metal or plastic, to play a role in the glue layer 211 The sleeve layer 212 has a protective effect, and the diameter of the sleeve layer 212 is smaller than the diameter of the first membrane bundle 201 or the second membrane bundle 202 outside the sliding groove 181, so that the constraint ring 21 forms a step portion 214 on both sides of the sliding groove 181, and the diameter of the step portion 214 is larger than the diameter of the sleeve layer 212, thereby preventing the constraint ring 21 from falling off when sliding inside the sliding groove 181. A through hole 213 is also opened on the sleeve layer 212, and the through hole 213 passes through the constraint ring 21, so as to facilitate the pull rope 25 to pass through the constraint ring 21.

[0047] During production, multiple membrane filaments 20 can be placed at the required positions first, and the sleeve layer 212 can be sleeved on the positions where the multiple membrane filaments 20 pass through the sliding groove 181. Then, a tool is passed through the sleeve layer 212 to form a through hole 213, and then glue is poured to form a bonding layer 211. The step portion 214 can be formed by a corresponding mold, and then the tool is pulled out of the formed constraint ring sleeve 21.

[0048] Optionally, an elastic rod 33 may be provided in the center of the plurality of membrane filaments 20 . The elastic rod 33 is fixed between the restraining ring sleeves 21 . The elastic rod 33 is made of a flexible material and can be deformed, thereby improving the friction effect when the first membrane bundle 201 and the second membrane bundle 202 rub against each other.

[0049] Combination Figure 2 and Figure 3At the center of the reaction pool 2, multiple sets of central columns 13, fixed components, constraint components and driving mechanisms are fixedly provided, and are arranged in a circular array about the axis of the central column 13. The multiple sets of fixed components, constraint components and driving mechanisms can rotate around the axis of the central column 13, thereby forming a staggered flow on the surface of the membrane filament 20, generating shear force and disturbance force, so that macromolecules such as biological aggregates are separated from the surface of the membrane filament 20, further extending the operation cycle of the membrane filament 20.

[0050] Combination Figure 2 , Figure 3 and Fig.17 In order to drive multiple groups of fixed components, constraint components and driving mechanisms to rotate around the axis of the central column 13, a planetary gear 10 is fixedly connected to the upper surface of each upper fixed plate 16, and a sun gear 11 is fixedly provided on the outer peripheral surface of the central column 13. The planetary gears 10 mesh with the sun gear 11, and an outer gear ring 9 is provided on the side of the planetary gear 10 away from the sun gear 11, and the planetary gear 10 meshes with the outer gear ring 9. In order to facilitate the installation of the outer gear ring 9, an upper support platform 12 can be provided below the outer gear ring 9, and the upper support platform 12 is fixed to the base 1. The inner circle radius of the upper support platform 12 is smaller than the inner circle radius of the outer gear ring 9, so as to facilitate the removal of the fixing assembly, the constraint assembly and the driving mechanism from the reaction pool 2. A driving device 8 is provided on the base 1. The driving device 8 is used to drive the outer gear ring 9 to rotate. The driving device 8 is a combination of a motor and a gear, so that the outer gear ring 9 can be driven to rotate by the driving device 8, and the outer gear ring 9 drives the planetary gear 10 to rotate around the sun gear 11. The sun gear 11 is always in a stationary state, so that all the membrane filaments 20 rotate around the central column 13. The smooth operation of the entire transmission mechanism is ensured by adjusting the modulus of the sun gear 11, the outer gear ring 9 and the planetary gear 10.

[0051] Combination Fig.14 In order to support multiple groups of fixing components, constraint components and driving mechanisms, a rotating disk 22 is provided below the lower fixing plate 17. The lower fixing plate 17 is rotatably mounted on the rotating disk 22, and the rotating disk 22 is rotatably connected to the center column 13, so that the lower fixing plate 17 can rotate around the axis of the center column 13 under the support of the rotating disk 22 while rotating on its own.

[0052] In addition, in order to keep the sliding shaft 24 and the restraint disk 18 in a stationary state relative to the restraint disk 18 when they rotate around the axis of the central column 13, the bottom end of the sliding shaft 24 passes through the rotating disk 22, and a ring rail 34 is fixed at the bottom of the reaction pool 2, and an arc groove 241 is opened at the bottom end of the sliding shaft 24. When the sliding shaft 24 rotates around the central column 13, the arc groove 241 at the bottom slides on the ring rail 34, thereby limiting the rotation of the sliding shaft 24 through the cooperation between the ring rail 34 and the arc groove 241.

[0053] Combination Fig.15 and Fig.16At least one reaction pool 2 is provided. When multiple reaction pools 2 are provided, a water trough 15 is provided between two adjacent reaction pools 2. The water trough 15 is located on both sides of the reaction pool 2. As the outer gear ring 9 rotates, the membrane filaments 20 will cause the sewage in the reaction pool 2 to flow in the same direction as the outer gear ring 9, so that part of the sewage in one reaction pool 2 enters another reaction pool 2 through the water trough 15. Preferably, the outlet area of ​​the water trough 15 is smaller than the inlet area, so as to increase the flow rate of the sewage out of the water trough 15, thereby increasing the impact of the sewage on the membrane filaments 20.

[0054] In addition, a water baffle 14 is fixedly provided in the reaction tank 2, and the distance between the water baffle 14 and the inner wall of the reaction tank 2 gradually increases along the rotation direction of the outer gear ring 9, so that when the sewage flows in a reaction tank 2, it will be hindered by the water baffle 14, thereby increasing the shear force and disturbance force of the cross flow.

[0055] Combination Fig.17 In order to facilitate the delivery of treated clean water, a second connecting water pipe 71 is fixedly provided on the planetary wheel 10. The second connecting water pipe 71 passes downward through the planetary wheel 10, so that the first membrane bundle 201 and the second membrane bundle 202 are connected to the second connecting water pipe 71. A second annular water pipe 7 is rotatably provided at the top end of the sliding shaft 24. The second annular water pipe 7 can rotate around the sliding shaft 24, and the second annular water pipe 7 is connected to the second connecting water pipe 71. Clean water can enter the second connecting water pipe 71 from the membrane filament 20, and then enter the second annular water pipe 7.

[0056] In addition, a first annular water pipe 6 is rotatably provided at the top of the central column 13, and the first annular water pipe 6 can rotate around the central column 13. A first connecting water pipe 61 is connected to the second annular water pipe 7, and the first connecting water pipe 61 is connected to the first annular water pipe 6, and the first annular water pipe 6 is connected to the water collection pipe 5, so that water entering the second annular water pipe 7 can enter the first annular water pipe 6 through the first connecting water pipe 61, and then enter the water collection pipe 5. A water pump can be set at one end of the water collection pipe 5 to take water.

[0057] Combination Fig.14 When the reaction tank 2 needs aeration, an air delivery pipe 3 can be added and extended to the bottom of the reaction tank 2. The rotating disk 22 has a certain height from the bottom surface of the reaction tank 2, so that it is convenient to set the aeration pipe 4 between the rotating disk 22 and the bottom surface of the reaction tank 2. The aeration pipe 4 can be arranged in a ring shape. In addition, air holes need to be opened on the rotating disk 22 to facilitate the upward flow of gas. It is preferred that the aeration pipe 4 is arranged with an inner and outer layer to increase the aeration area. When the two layers of aeration pipe 4 are respectively located on the inner and outer arc surfaces of the ring track 34, a connecting air pipe penetrating the ring track 34 can be arranged at the lower side of the ring track 34, and the two layers of aeration pipe 4 are connected through the connecting air pipe.

[0058] When in use (working), the outer ring gear 9 is driven to rotate by the driving device 8, and the outer ring gear 9 drives the planetary gear 10 to rotate around the sun gear 11, thereby driving multiple groups of fixed components, constraint components, driving mechanisms and all membrane wires 20 to rotate around the axis of the central column 13. The bottom end of the fixed component is rotatably connected to the rotating disk 22 and is supported by the rotating disk 22.

[0059] When the outer gear ring 9 rotates, it will also drive the fixed component to rotate around the sliding shaft 24, so that the constraint disk 18 rotates around the sliding shaft 24, and the winding gear 31 rotates with the constraint disk 18 and engages with the inner ring arc gear 29 or the outer ring arc gear 30, thereby driving the pull rope 25 to be wound or unwound. When the pull rope 25 is wound, the stretching 25 will pull the first membrane bundle 201 and the second membrane bundle 202 to compress the spring 28, so that the first membrane bundle 201 and the second membrane bundle 202 move alternately and rub against each other. When the pull rope 25 is unwound, the spring 28 drives the constraint ring sleeve 21 to reset, thereby resetting the first membrane bundle 201 and the second membrane bundle 202.

[0060] The clean water filtered out from the reaction tank by the membrane fibers 20 enters the second annular water pipe 7 through the second connecting water pipe 71 , then enters the first connecting water pipe 61 , and finally enters the water collection pipe 5 through the first annular water pipe 6 .

Claims

1. A chemical production wastewater treatment device, comprising a base (1) and membrane fibers (20), wherein a reaction pool (2) is provided in the base (1), characterized in that: Also includes: A fixing assembly, the fixing assembly being arranged in the reaction tank (2), the fixing assembly comprising an upper fixing plate (16) and a lower fixing plate (17) arranged side by side in an upper and lower manner; A first membrane bundle (201) and a second membrane bundle (202), wherein the first membrane bundle (201) and the second membrane bundle (202) are each composed of a plurality of membrane filaments (20) arranged in parallel, and the two ends of the first membrane bundle (201) and the second membrane bundle (202) are respectively fixed on an upper fixed plate (16) and a lower fixed plate (17), and the first membrane bundle (201) and the second membrane bundle (202) have at least one cross contact point between the upper fixed plate (16) and the lower fixed plate (17); A driving mechanism is provided between the upper fixed plate (16) and the lower fixed plate (17), and is used to drive the first membrane bundle (201) and the second membrane bundle (202) to move so as to continuously change the position of the cross-contact point, so that the first membrane bundle (201) and the second membrane bundle (202) rub against each other to remove impurities on their own surfaces.

2. A chemical production wastewater treatment device according to claim 1, characterized in that: It also includes a restraining assembly, which is arranged between the upper fixing plate (16) and the lower fixing plate (17), and includes: A restraining plate (18), the restraining plate (18) being arranged between an upper fixing plate (16) and a lower fixing plate (17), a connecting rod (19) being fixedly arranged between the upper fixing plate (16) and the lower fixing plate (17), and the connecting rod (19) passing through the restraining plate (18) and being fixedly connected to the restraining plate (18); A sliding groove (181), the sliding groove (181) being formed on the restraining disk (18), a plurality of the sliding grooves (181) being provided, and the plurality of sliding grooves (181) being arranged in a ring array about the axis of the restraining disk (18); A restraining ring sleeve (21), wherein a restraining ring sleeve (21) is slidably disposed in each of the sliding grooves (181), and two adjacent restraining ring sleeves (21) are respectively located in the sliding groove (181) at one end close to the axis of the restraining disk (18) and at one end away from the axis of the restraining disk (18); The adjacent first membrane bundle (201) and second membrane bundle (202) pass through two adjacent sliding grooves (181) respectively, and the parts of the first membrane bundle (201) and the second membrane bundle (202) located in the sliding groove (181) are fixedly connected to the restraining ring sleeve (21); Each of the first membrane bundle (201) and the second membrane bundle (202) has a cross contact point on both sides of the restraining disk (18) in the vertical direction.

3. A chemical production wastewater treatment device according to claim 2, characterized in that: The driving mechanism comprises: A sliding shaft (24), the sliding shaft (24) being arranged in the reaction tank (2), the upper fixing plate (16), the lower fixing plate (17) and the restraining plate (18) being rotatably arranged on the outer peripheral surface of the sliding shaft (24); a fixed block (27), the fixed block (27) being disposed in the sliding groove (181) and being fixedly connected to the restraining plate (18), and the fixed block (27) being located at one end of the sliding groove (181) away from the corresponding restraining ring sleeve (21), and a gap space (183) being left between the fixed block (27) and the inner wall of the sliding groove (181); A spring (28), wherein the spring (28) is disposed in the sliding groove (181), and one end of the spring (28) is fixedly connected to the restraining ring sleeve (21), and the other end of the spring (28) is fixedly connected to the fixing block (27); A through groove (182), wherein the through groove (182) is formed on a side wall of the sliding groove (181), and the through groove (182) is used to connect two adjacent sliding grooves (181); A pull rope (25), the pull rope (25) being arranged on the restraining disk (18), the pull rope (25) having a fixed end and a free end, the fixed end being fixedly connected to the fixing block (27) or the restraining ring sleeve (21), the free end sequentially passing through one of the restraining ring sleeves (21), the through groove (182), the adjacent restraining ring sleeve (21), the fixing block (27), the adjacent through groove (182) and the adjacent fixing block (27), and the process is repeated until the restraining ring sleeves (21) are passed through, after which the free end is led out toward the axis of the sliding shaft (24); A winding assembly is provided between the restraining disk (18) and the sliding shaft (24); the free end of the pull rope (25) is fixedly connected to the winding assembly; the winding assembly is used to reel in or unreel the pull rope (25) so that the restraining ring sleeve (21) slides in the sliding groove (181).

4. A chemical production wastewater treatment device according to claim 3, characterized in that: The winding assembly comprises: A mounting plate (23), wherein the axis of the mounting plate (23) is fixedly connected to the sliding shaft (24), and the mounting plate (23) is arranged at a position close to the restraining plate (18); A winding column (32), the winding column (32) being rotatably mounted on the surface of the restraining disk (18), and the free end of the pull rope (25) being fixedly connected to the winding column (32); A winding gear (31), the winding gear (31) being fixedly mounted on a surface of a winding column (32) on a side away from the restraining disk (18), and a sliding column (311) being fixedly mounted on a surface of the winding gear (31) on a side away from the winding column (32); An annular groove (231), the annular groove (231) being formed on a surface of the mounting plate (23) on a side close to the restraining plate (18), and the sliding column (311) being capable of sliding in the annular groove (231); an inner arc gear (29), the inner arc gear (29) being fixedly mounted on a surface of the mounting plate (23) close to the restraining plate (18), and the inner arc gear (29) being located on a side of the annular groove (231) close to the axis of the mounting plate (23), and the inner arc gear (29) being capable of meshing with the winding gear (31); an outer ring arc gear (30), the outer ring arc gear (30) being fixedly mounted on a surface of the mounting plate (23) close to the restraining plate (18), the outer ring arc gear (30) being located on a side of the annular groove (231) away from the axis of the mounting plate (23), and the outer ring arc gear (30) being capable of externally meshing with the winding gear (31); The winding gear (31) is disengaged from the inner arc gear (29) and meshes with the outer arc gear (30); the winding gear (31) is disengaged from the outer arc gear (30) and meshes with the inner arc gear (29).

5. A chemical production wastewater treatment device according to claim 2, characterized in that: The restraining ring sleeve (21) is composed of a bonding layer (211), a sleeve layer (212) and a through hole (213); The adhesive layer (211) is used to fix a plurality of membrane filaments (20), and the adhesive layer (211) is made of a flexible material; The sleeve layer (212) is sleeved on the middle part of the restraining ring sleeve (21), and the sleeve layer (212) is made of a rigid material; The diameter of the sleeve layer (212) is smaller than the diameter of the first membrane bundle (201) or the second membrane bundle (202) located outside the sliding groove (181), so that the constraint ring sleeve (21) forms a step portion (214) on both sides of the sliding groove (181); The through hole (213) is opened on the sleeve layer (212) and passes through the restraining ring sleeve (21).

6. A chemical production wastewater treatment device according to claim 4, characterized in that: A central column (13) is fixedly provided at the center of the reaction pool (2), and the fixing components, the restraining components and the driving mechanism are provided in multiple groups and are arranged in a ring array about the axis of the central column (13).

7. A chemical production wastewater treatment device according to claim 6, characterized in that: A planetary gear (10) is fixedly connected to the upper surface of each upper fixed plate (16), a sun gear (11) is fixedly provided on the outer peripheral surface of the central column (13), and the planetary gears (10) are meshed with the sun gear (11); An outer gear ring (9) is provided on a side of the planetary gear (10) away from the sun gear (11), and the planetary gear (10) is meshed with the outer gear ring (9); The base (1) is provided with a driving device (8), and the driving device (8) is used to drive the outer gear ring (9) to rotate.

8. A chemical production wastewater treatment device according to claim 6, characterized in that: A rotating disk (22) is provided below the lower fixed plate (17), the lower fixed plate (17) is rotatably mounted on the rotating disk (22), and the rotating disk (22) is rotatably connected to the central column (13); The bottom end of the sliding shaft (24) passes through the rotating disk (22); A ring rail (34) is fixedly provided at the bottom of the reaction pool (2), and an arc groove (241) is provided at the bottom end of the sliding shaft (24), and the arc groove (241) is capable of sliding on the ring rail (34).

9. A chemical production wastewater treatment device according to claim 8, characterized in that: The reaction pool (2) is provided with at least one; A water channel (15) is provided between two adjacent reaction tanks (2), wherein the water outlet area of ​​the water channel (15) is smaller than the water inlet area; A water baffle (14) is fixedly provided in the reaction tank (2), and the distance between the water baffle (14) and the inner wall of the reaction tank (2) gradually increases along the rotation direction of the outer gear ring (9).

10. A chemical production wastewater treatment device according to claim 7, characterized in that: A second connecting water pipe (71) is fixedly provided on the planetary wheel (10), and the first membrane bundle (201) and the second membrane bundle (202) are in communication with the second connecting water pipe (71); A second annular water pipe (7) is rotatably provided at the top end of the sliding shaft (24), and the second annular water pipe (7) is in communication with a second connecting water pipe (71); A first annular water pipe (6) is rotatably provided at the top end of the central column (13); a first connecting water pipe (61) is connected to the second annular water pipe (7), and the first connecting water pipe (61) is connected to the first annular water pipe (6); The first annular water pipe (6) is in communication with the water collecting pipe (5).

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