CN114887379B - Prevent filtration system and sewage solid-liquid separation equipment of guipure off tracking - Google Patents
Prevent filtration system and sewage solid-liquid separation equipment of guipure off tracking Download PDFInfo
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- CN114887379B CN114887379B CN202210698225.3A CN202210698225A CN114887379B CN 114887379 B CN114887379 B CN 114887379B CN 202210698225 A CN202210698225 A CN 202210698225A CN 114887379 B CN114887379 B CN 114887379B
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- 238000001914 filtration Methods 0.000 title claims abstract description 40
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 238000000926 separation method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 23
- 239000007790 solid phase Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 239000007791 liquid phase Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000010802 sludge Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/056—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/801—Driving means, shaft packing systems or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/804—Accessories integrally combined with devices for controlling the filtration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a filter system for preventing a screen belt from deviating and a sewage solid-liquid separation device, which are used for solving the problem that the screen belt in the existing sewage solid-liquid separation device is easy to deviate, wherein the filter system for preventing the screen belt from deviating comprises a filter frame, the screen belt, a driving belt, a guide roller and a main shaft; the two ends of the guide roller are respectively connected with the filter frame, and the two ends of the guide roller are also in rotating fit with a first rotating assembly and a second rotating assembly; the transmission belt comprises a first transmission belt and a second transmission belt, the first transmission belt is in transmission fit with the first rotating assembly and the main shaft at the same time, and the second transmission belt is in transmission fit with the second rotating assembly and the main shaft at the same time; the filter screen belt is matched with the first driving belt and the second driving belt simultaneously so as to move along with the first driving belt and the second driving belt simultaneously. The invention can realize the self-adjustment of the transmission belt, thereby preventing the filter screen belt from deviating, ensuring good filtering effect, further reducing the guarantee rate of the sewage solid-liquid separation equipment and reducing the maintenance cost in the later period.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a filtering system capable of preventing a mesh belt from deviating and sewage solid-liquid separation equipment.
Background
In the sewage treatment process of the urban sewage treatment plant, a grid+ (aeration) grit chamber and a primary sedimentation tank are arranged in a pretreatment unit for removing inorganic sand particles with specific gravity of more than 2.65 and particle size of more than 0.2mm and organic matters on the surface of the sand particles, so that facilities such as pipelines, valves and the like are protected from abrasion and blockage, and the load of subsequent treatment is reduced. The processing unit is generally formed by connecting a plurality of processing structures in series, and has the advantages of more auxiliary equipment, high design requirement, complex process, large occupied area and high requirement on topography in the installation process.
The high-efficiency solid-liquid separator can replace a fine grid and a primary sedimentation tank, integrates a traditional pretreatment unit, and can synchronously realize the sludge concentration and dehydration process; the purposes of shortening the process flow, saving the occupied area, removing the particles which are difficult to settle and reducing the effluent SS are achieved.
However, the problem of off tracking of the filter screen belt occurs in the conventional filtering system of the high-efficiency solid-liquid separator, the filtering effect is affected when the filter screen belt is light, and the equipment is stopped when the filter screen belt is heavy. The filter screen area off tracking in filtration system is mainly because when the system is in operation, the operation that the drive belt of filter screen area both sides probably appears is asynchronous, and filter screen area both sides atress is uneven to make filter screen area skew original mounted position, can lead to the filter screen area to change with the corresponding position of water inlet then, and then lead to partial sewage can not be filtered successfully, still can lead to equipment to report the barrier and shut down when serious.
Disclosure of Invention
The invention aims to solve the technical problem of preventing a filter screen belt in a filter system from deviating, and aims to provide the filter system capable of preventing the filter screen belt from deviating and sewage solid-liquid separation equipment.
The invention is realized by the following technical scheme:
In one aspect, the invention provides a filter system for preventing a mesh belt from deviating, which comprises a filter frame, a filter mesh belt, a transmission belt, a guide roller and a main shaft;
The two ends of the guide roller are respectively connected with the filter frame, and the two ends of the guide roller are also in rotating fit with a first rotating assembly and a second rotating assembly;
The transmission belt comprises a first transmission belt and a second transmission belt, the first transmission belt is in transmission fit with the first rotating assembly and the main shaft at the same time, and the second transmission belt is in transmission fit with the second rotating assembly and the main shaft at the same time;
The filter screen belt is matched with the first driving belt and the second driving belt at the same time so as to move along with the first driving belt and the second driving belt at the same time.
In one possible design, the first and second driving belts are respectively provided with a first guide groove and a second guide groove, and the filter screen belt is provided with a first guide bar and a second guide bar;
when the filter screen belt is matched with the first driving belt and the second driving belt at the same time, the first guide strip is positioned in the first guide groove, and the second guide strip is positioned in the second guide groove.
In one possible design, the width of the first guide groove is greater than the width of the first guide bar; and/or
The width of the second guide groove is larger than that of the second guide bar.
In one possible design, the width of the first guide groove is 1-2 mm greater than the width of the first guide bar; and/or
The width of the second guide groove is 1-2 mm larger than that of the first guide bar.
In one possible design, the first or second rotating assembly comprises:
the wear-resistant sleeve is movably sleeved at the end part of the guide roller, and the outer wall of the wear-resistant sleeve is provided with a matching part for matching with the transmission belt;
the rotating ring is sleeved on the wear-resistant sleeve and matched with the guide roll shaft hole;
The wear-resistant ring is sleeved at the end part of the guide roller and is connected with the wear-resistant sleeve; and a transmission belt matching groove is formed between the wear-resisting ring and the guide roller along the axial direction of the guide roller.
In one possible design, the guide rollers include a first guide roller and a second guide roller with axes parallel to each other, the first guide roller and the second guide roller being respectively arranged at a high position and a low position in the solid-liquid separation device;
The end part of the second guide roller is movably sleeved with a sealing assembly, the sealing assembly is connected with the filter frame, and a sealing block is arranged between the sealing assembly and the second guide roller to form radial sealing of the end part of the second guide roller.
In one possible design, the seal assembly includes:
the bearing shaft hole is matched with the end part of the guide roller;
the bearing seat is matched with the bearing shaft hole;
The end cover is connected to the bearing seat;
the limiting cover is sleeved on the guide roller and connected with the bearing seat;
Along the axial direction of the guide roller, the limit cover and the end cover are positioned at two sides of the bearing seat.
In one possible design, the filter cartridge includes a pressure plate attached to the filter holder, the pressure plate having a pressure head that abuts the filter cartridge, the pressure head pushing the filter cartridge away from its installed spatial position.
In one possible design, the pressure head pushes the filter screen belt 1-5 mm away from its installation space position.
In another aspect, the present invention provides a sewage solid-liquid separation apparatus comprising:
Any one of the filtering systems for preventing the mesh belt from deviating is used for filtering the solid phase in the sewage;
a dewatering system for separating a solid phase and a liquid phase in the filter residue obtained by filtration of the filtration system; and
And the filtering system and the dewatering system are respectively connected with the electric control system.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. According to the filtering system for preventing the mesh belt from deviating, after the first rotating component and the second rotating component are arranged at the two ends of the guide roller and are matched with the driving belts at the two sides of the mesh belt, under the condition that the driving belts at the two sides are out of synchronization in operation, the driving belts can be allowed to self-regulate due to the fact that the first rotating component and the second rotating component can rotate relatively and independently.
2. According to the sewage solid-liquid separation equipment provided by the embodiment of the invention, after the filtering system for preventing the mesh belt from deviating is adopted, a good sewage filtering effect can be ensured, the system guarantee rate is reduced, the production efficiency is higher, and the maintenance times of the sewage solid-liquid separation equipment are reduced, so that the equipment maintenance cost is lower.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a filtering system for preventing a mesh belt from deviating according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the structure of A-A in FIG. 1.
Fig. 3 is an enlarged schematic view of the structure at i in fig. 2.
FIG. 4 is a schematic diagram of the structure of C-C in FIG. 1.
Fig. 5 is an enlarged schematic view of the structure at iv in fig. 4.
Fig. 6 is a schematic structural diagram of a solid-liquid separation device for sewage according to an embodiment of the present invention.
In the drawings, the reference numerals and corresponding part names:
1-water inlet, 2-overflow port, 3-sludge discharge pipe, 4-filter frame, 5-deflector, 6-water outlet, 7-screw press, 4.1-second guide roll, 4.2-upper guide plate, 4.3-lower guide plate, 4.4-first guide roll, 4.5-main shaft, 4.6-air knife, 4.7-scraper, 4.8-flushing pipe, 4.9-idler, 4.10-bracket, 4.11-connecting frame, 4.1.1-end cap, 4.1.2-engineering plastic bearing, 4.1.3-central shaft, 4.1.4-limit cap, 4.1.5-sealing block, 4.1.6-bearing seat, 4.4.1-roller wall, 4.4.2-roller end cap, 4.4.3-rotating ring, 4.4.4-synchronous pulley, 4.4.5-wear sleeve, 4.4.6-fixed shaft, 4.4.7-7-wear ring, 4.8-shaft.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order not to obscure the invention.
Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the invention. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
Examples
On the one hand, the embodiment of the invention provides a filtering system for preventing a mesh belt from deviating, as shown in fig. 1-5, the filtering system for preventing the mesh belt from deviating comprises a filter frame 4, a filter mesh belt, a transmission belt, a guide roller and a main shaft 4.5; the two ends of the guide roller are respectively connected with the filter frame 4, and the two ends of the guide roller are also in rotating fit with a first rotating assembly and a second rotating assembly; the transmission belt comprises a first transmission belt and a second transmission belt, the first transmission belt is in transmission fit with the first rotating assembly and the main shaft 4.5 at the same time, and the second transmission belt is in transmission fit with the second rotating assembly and the main shaft 4.5 at the same time; the filter screen belt is matched with the first driving belt and the second driving belt simultaneously so as to move along with the first driving belt and the second driving belt simultaneously.
In the embodiment of the application, the filter frame 4 is composed of a plurality of steel structures, the plurality of steel structures are connected by bolts by taking the connecting frame 4.11 and the bracket 4.10 as structural main bodies, compared with the filter frame 4 formed by welding in the past, the filter frame 4 formed by adopting the bolt connection has no deformation, the whole size deviation is smaller, and the risk of deviation of a filter screen belt can be reduced; the first rotating component or the second rotating component can be a bearing structure or a perforated component, and the perforated component is in clearance fit with the end shaft hole of the guide roller to form a rotating fit.
When the system operates, the main shaft 4.5 is driven by the power source to rotate, and the first driving belt and the second driving belt synchronously operate under the driving of the main shaft 4.5. When the first driving belt and the second driving belt are in asynchronous operation, the first driving belt and the second driving belt are in driving fit with the first rotating assembly and the second rotating assembly respectively, the first rotating assembly and the second rotating assembly can rotate relatively independently, and in the process of asynchronous operation of the driving belts, the first rotating assembly and the second rotating assembly can rotate relatively.
It should be noted that the guide roller in the embodiment of the present application includes a roller wall 4.4.1 and a fixed shaft 4.4.6, wherein the fixed shaft 4.4.6 is disposed in the roller wall 4.4.1 in a penetrating manner, and two axial ends of the roller wall 4.4.1 are rotatably connected with the fixed shaft 4.4.6 through a roller end cover 4.4.2, which is a conventional structure of the guide roller. The end of the guide roll in the embodiment of the application essentially refers to the end shaft section of the stationary shaft 4.4.6.
The relative positions of the filter screen belt and the driving belt in the running process can be further ensured through a limiting structure between the driving belt and the filter screen belt, for example, in one possible embodiment, a first guide groove and a second guide groove can be respectively arranged on the first driving belt and the second driving belt, and a first guide strip and a second guide strip can be arranged on the filter screen belt; when the filter screen belt is simultaneously engaged with the first and second drive belts, the first guide bar is positioned in the first guide groove and the second guide bar is positioned in the second guide groove.
In the embodiment of the application, the first guide groove and the second guide groove can be respectively and continuously arranged along the length direction of the first driving belt and the second driving belt, namely the integral shape of the first guide groove and the second guide groove is in an annular closed shape like the first driving belt and the second driving belt respectively, so that the relative positions of the filter screen belt and the first driving belt and the second driving belt are ensured to be fixed in the self-adjusting process of the first driving belt or the second driving belt; of course, because the filter screen belt is basically kept relatively static with the first driving belt and the second driving belt respectively in the operation process, the limit requirements of the filter screen belt and the first driving belt or the second driving belt can be properly reduced, for example, the first guide groove can also be an independent groove arranged on a certain section of the first driving belt, a plurality of first guide grooves can be arranged on the first driving belt as required, and the second guide groove can also be arranged on the second driving belt in the same arrangement mode as the first guide grooves.
In the running process of the system, if the guide bar is in over-tight fit with the guide groove, the guide bar is easy to be misplaced from the guide groove after being stressed mutually with the guide groove, and then the guide bar is completely separated from the guide groove, so that in one possible embodiment, the width of the first guide groove can be larger than that of the first guide bar; and/or the width of the second guide groove may be greater than the width of the second guide bar. By the arrangement, a certain movable space can be provided for the first guide strip and/or the second guide strip, and the guide strip can be prevented from being completely separated from the guide groove.
In one possible embodiment, the width of the first guide groove may be 1-2 mm greater than the width of the first guide bar; and/or the width of the second guide groove may be 1-2 mm greater than the width of the first guide bar.
In one possible embodiment, the first or second rotating assembly comprises a wear sleeve 4.4.5, a rotating ring 4.4.3 and a wear ring 4.4.7; the wear-resistant sleeve 4.4.5 is movably sleeved at the end part of the guide roller, and a matching part for matching with the transmission belt is arranged on the outer wall of the wear-resistant sleeve 4.4.5; the rotating ring 4.4.3 is sleeved on the wear-resistant sleeve 4.4.5 and matched with the guide roll shaft hole; the wear-resistant ring 4.4.7 is sleeved at the end part of the guide roller and is connected with the wear-resistant sleeve 4.4.5; and a transmission belt matching groove is formed between the wear-resisting ring 4.4.7 and the guide roller along the axial direction of the guide roller.
In the embodiment of the application, the first driving belt and the second driving belt can be respectively configured into a synchronous pulley 4.4.4, the outer surface of the wear-resistant sleeve 4.4.5 can be configured into the shape of the synchronous pulley, the synchronous pulley 4.4.4 can also be directly sleeved, and the wear-resistant sleeve 4.4.5 is in driving fit with the first driving belt or the second driving belt; the wear-resistant sleeve 4.4.5 is movably sleeved at the end part of the fixed shaft 4.4.6, the inner ring of the rotating ring 4.4.3 is matched with the shaft hole of the wear-resistant sleeve 4.4.5, the outer ring of the rotating ring 4.4.3 is matched with the shaft hole of the roller end cover 4.4.2, of course, the roller end cover 4.4.2 is provided with a mounting groove matched with the rotating ring 4.4.3, the wear-resistant sleeve 4.4.5 realizes radial positioning of the wear-resistant sleeve 4.4.5 through the arrangement of the rotating ring 4.4.3, and the rotating ring 4.4.3 can adopt the existing bearing or the existing wear-resistant ring; the end part of the fixed shaft 4.4.6 can be matched with a nut 4.4.8 for shaft to axially limit the wear-resisting ring 4.4.7, and the wear-resisting ring 4.4.7 and the roller end cover 4.4.2 respectively form axial limit for the first transmission belt or the second transmission belt so as to prevent the first transmission belt or the second transmission belt from axially moving.
In the filtration system, the filter screen belt is generally in an oblique and transverse arrangement form, and the oblique arrangement form can realize the extension of the filtration path in a limited space, so in one possible embodiment, the guide rollers comprise a first guide roller 4.4 and a second guide roller 4.1 with axes parallel to each other, and the first guide roller 4.4 and the second guide roller 4.1 are respectively used for being arranged at a high position and a low position in the solid-liquid separation equipment; the end part of the second guide roller 4.1 is also movably sleeved with a sealing component, the sealing component is connected with the filter frame 4, and a sealing block 4.1.5 is arranged between the sealing component and the second guide roller 4.1 to form radial sealing of the end part of the second guide roller 4.1.
In the embodiment of the application, the second guide roller 4.1 arranged at the lower part can be fully contacted with sewage, and the solid phase in the sewage easily enters the fit gap between the fixed shaft 4.4.6 and the filter frame 4 to cause structural abrasion, and the second guide roller 4.1 can also cause radial runout integrally, thereby influencing transmission precision and further causing the filter screen belt to deviate, and the solid phase in the sewage can be prevented from entering the fit gap between the fixed shaft 4.4.6 and the filter frame 4 by radially sealing the end part of the second guide roller 4.1 through the sealing component, so that structural abrasion is prevented, thereby ensuring transmission precision and further avoiding the condition that the filter screen belt deviates.
In one possible embodiment, the seal assembly may include a bearing, a bearing seat 4.1.6, an end cap 4.1.1 and a limit cap 4.1.4; the bearing shaft hole is matched with the end part of the guide roller; the bearing seat 4.1.6 is matched with the bearing shaft hole; the end cover 4.1.1 is connected with the bearing seat 4.1.6; the limit cover 4.1.4 is sleeved on the guide roller and connected with the bearing seat 4.1.6; along the axial direction of the guide roller, the limit cover 4.1.4 and the end cover 4.1.1 are positioned at two sides of the bearing seat 4.1.6.
In the embodiment of the application, the bearing is an engineering plastic bearing 4.1.2 made of polytetrafluoroethylene or ultra-high molecular weight polyethylene, the end part of the guide roller can be derived into a central shaft 4.1.3 with a shaft shoulder, the bearing is matched with the shaft hole of the central shaft 4.1.3, one side of the sealing block 4.1.5 is abutted on the limiting cover 4.1.4, the other side is abutted on the shaft shoulder, the two ends of the bearing are respectively axially limited through the limiting cover 4.1.4 and the end cover 4.1.1, on one hand, the solid phase in sewage can be prevented from entering the matching gap between the bearing and the bearing seat 4.1.6, and on the other hand, the structural stability of the sealing component, the sealing block 4.1.5 and the roller end cover 4.4.2 is ensured, so that the sealing stability of the sealing block 4.1.5 is ensured.
In one possible embodiment, to ensure that the filter belt has sufficient tension, a pressure plate is attached to the filter holder 4.10, the pressure plate having a pressure head which abuts the filter belt, the pressure head pushing the filter belt away from its installation space.
In one possible embodiment, the pressure head pushes the filter belt 1-5 mm away from its installation space.
Wherein, the upper and lower sides of the filtering system can be respectively provided with an upper guide plate and a lower guide plate to respectively guide the upper and lower sides of the filter screen belt, thereby preventing the filter screen belt from deviating; of course, the widths of the upper and lower guide plates are smaller than the width of the filter screen belt to avoid obstructing the sewage.
In another aspect, the present invention provides a sewage solid-liquid separation apparatus, as shown in fig. 6, which includes a dewatering system, an electrical control system, and any one of the filtering systems for preventing the deviation of the mesh belt in the above embodiments; the filtering system is used for filtering the solid phase in the sewage; the dehydration system is used for separating solid phase and liquid phase in filter residues obtained by filtering of the filtering system; the filtering system and the dewatering system are respectively connected with the electric control system.
Specifically, the sewage solid-liquid separation equipment is provided with a shell, a filtering system and a dewatering system are both arranged in the shell, and an electric control system is arranged outside the shell; the water inlet 1, the water outlet 6 and the overflow port 2 with sequentially increased heights are arranged on the shell, the sludge discharge pipe 3 is arranged at the bottom of the shell, and sludge deposited at the bottom of the shell can be discharged through the sludge discharge pipe 3, so that excessive sludge deposition in the shell is prevented; the filter system is arranged in the shell by adopting an inclined and transverse structure, and is provided with a first guide roller 4.4, a second guide roller 4.1 and a main shaft 4.5, wherein the first guide roller 4.4 is higher than the overflow port 2, the second guide roller 4.1 is lower than the water inlet 1 and is positioned below the water inlet 1, the main shaft 4.5 is level with the first guide roller 4.4, the filter screen belt is in a corner structure at the first guide roller 4.4, a carrier roller 4.9 can be arranged below the second guide roller 4.1 for ensuring the tension of the filter screen belt, the second guide roller 4.1 is taken as a starting point of the filter screen belt, and the filter screen belt sequentially bypasses the second guide roller 4.1, the first guide roller 4.4, the main shaft 4.5 and the carrier roller 4.9 and returns to the second guide roller 4.1; a deflector 5 is arranged below the filter screen belt to deflect the sludge so that the sludge is collected at the sludge discharge pipe 3; the dewatering system may be configured as a screw press 7 arranged below the main shaft 4.5, whereby when the filter cake on the filter screen belt is transported to the main shaft 4.5, the filter cake falls into the screw press 7 by its own weight for further dewatering; of course, part of the filter residues may also be adhered to the filter screen belt, so in one possible embodiment, a filter screen purging system is further arranged below the main shaft 4.5, the filter screen purging system mainly comprises a fan and a wind blade 4.6, and after the filter residues on the filter screen belt are scraped by the mud scraping plate 4.7, the filter screen belt is purged and cleaned by the fan and the wind blade 4.6; the rear of the air knife 4.6 can be provided with a flushing pipe 4.8 for further flushing the filter screen belt, so that the filter screen belt is guaranteed to have better circulating filtering capacity.
After the equipment is started, sewage flows through the filter screen belt, particle impurities in the water are trapped on the surface of the filter screen belt, and the filtered sewage is discharged through the water outlet 6 for process circulation; as the running time passes, more and more particles are trapped, the filtering speed of the filter screen belt starts to drop, the filtering holes gradually become smaller, the pressure difference between the water inlet 1 and the water outlet 6 is increased, when the pressure difference reaches a set value, the electric control system controls the main shaft 4.5 to rotate so as to drive the filter screen belt, the trapped filter materials on the filter screen belt fall into the screw press 7, are discharged after dehydration, and are recovered to an initial filtering state after being cleaned by the filter screen purging system, and the filter screen belt is circulated.
The sewage solid-liquid separation equipment provided by the embodiment of the application has a strong interception effect on suspended matters in sewage, the TSS removal rate reaches 30% -50%, and the BOD removal rate reaches 10% -30%; meanwhile, three functions of sewage filtration, sludge concentration and dehydration can be realized, and the water content of the dehydrated sludge is 70% -80%; the continuous full-automatic operation can be realized, and the operation and maintenance are simple and convenient; the device has compact structure, and the land of the device is 80-95% higher than that of the conventional pretreatment unit.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The filtering system for preventing the deviation of the mesh belt is characterized by comprising a filter frame (4), a filter mesh belt, a transmission belt, a guide roller and a main shaft (4.5);
The two ends of the guide roller are respectively connected with the filter frame (4), and the two ends of the guide roller are also in rotating fit with a first rotating assembly and a second rotating assembly;
the transmission belt comprises a first transmission belt and a second transmission belt, the first transmission belt is in transmission fit with the first rotating assembly and the main shaft (4.5) at the same time, and the second transmission belt is in transmission fit with the second rotating assembly and the main shaft (4.5) at the same time;
the filter screen belt is matched with the first driving belt and the second driving belt at the same time so as to move along with the first driving belt and the second driving belt at the same time;
The first driving belt and the second driving belt are respectively provided with a first guide groove and a second guide groove, and the filter screen belt is provided with a first guide strip and a second guide strip;
When the filter screen belt is matched with the first transmission belt and the second transmission belt at the same time, the first guide strip is positioned in the first guide groove, and the second guide strip is positioned in the second guide groove;
wherein the first rotating assembly or the second rotating assembly comprises:
The wear-resistant sleeve (4.4.5) is movably sleeved at the end part of the guide roller, and a matching part for matching with the transmission belt is arranged on the outer wall of the wear-resistant sleeve (4.4.5);
The rotating ring (4.4.3) is sleeved on the wear-resistant sleeve (4.4.5) and matched with the guide roll shaft hole;
The wear-resistant ring (4.4.7) is sleeved at the end part of the guide roller and is connected with the wear-resistant sleeve (4.4.5); a transmission belt matching groove is formed between the wear-resistant ring (4.4.7) and the guide roller along the axial direction of the guide roller;
The guide rollers comprise a first guide roller (4.4) and a second guide roller (4.1) with axes parallel to each other, and the first guide roller (4.4) and the second guide roller (4.1) are respectively arranged at a high position and a low position in the solid-liquid separation equipment;
The end part of the second guide roller (4.1) is movably sleeved with a sealing component, the sealing component is connected with the filter frame (4), and a sealing block (4.1.5) is arranged between the sealing component and the second guide roller (4.1) to form radial sealing of the end part of the second guide roller (4.1);
The seal assembly includes:
the bearing shaft hole is matched with the end part of the guide roller;
A bearing seat (4.1.6), wherein the bearing seat (4.1.6) is matched with the bearing shaft hole;
an end cap (4.1.1), the end cap (4.1.1) being connected to the bearing housing (4.1.6);
The limiting cover (4.1.4) is sleeved on the guide roller and connected with the bearing seat (4.1.6);
along the axial direction of the guide roller, the limit cover (4.1.4) and the end cover (4.1.1) are positioned at two sides of the bearing seat (4.1.6).
2. The web deviation prevention filter system of claim 1 wherein the width of the first guide channel is greater than the width of the first guide strip; and/or
The width of the second guide groove is larger than that of the second guide bar.
3. The filtering system for preventing deviation of a mesh belt according to claim 2, wherein the width of the first guide groove is 1-2 mm larger than the width of the first guide bar; and/or
The width of the second guide groove is 1-2 mm larger than that of the first guide bar.
4. A filter system for preventing deviation of a filter belt according to claim 1, comprising a pressure plate connected to the filter holder (4.10), said pressure plate having a pressure head against the filter belt, said pressure head pushing said filter belt away from its installation space position.
5. The filter system for preventing deviation of a filter belt according to claim 4, wherein the pressure head pushes the filter belt away from the installation space position by 1-5 mm.
6. A sewage solid-liquid separation apparatus, characterized by comprising:
the filtering system for preventing deviation of a mesh belt according to any one of claims 1 to 5, which is used for filtering solid phase in sewage;
a dewatering system for separating a solid phase and a liquid phase in the filter residue obtained by the filtration of the filtration system; and
And the filtering system and the dewatering system are respectively connected with the electric control system.
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| CN202210698225.3A CN114887379B (en) | 2022-06-20 | 2022-06-20 | Prevent filtration system and sewage solid-liquid separation equipment of guipure off tracking |
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| CN202210698225.3A CN114887379B (en) | 2022-06-20 | 2022-06-20 | Prevent filtration system and sewage solid-liquid separation equipment of guipure off tracking |
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| CN114887379A (en) | 2022-08-12 |
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