CN114100237A - A chain plate filter type solid-liquid separation device - Google Patents
A chain plate filter type solid-liquid separation device Download PDFInfo
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- CN114100237A CN114100237A CN202111073842.6A CN202111073842A CN114100237A CN 114100237 A CN114100237 A CN 114100237A CN 202111073842 A CN202111073842 A CN 202111073842A CN 114100237 A CN114100237 A CN 114100237A
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- 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
- B01D33/333—Filters with filtering elements which move during the filtering operation with individual filtering elements moving along a closed path
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- 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
- B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
- B01D33/37—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection
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- 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
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/461—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element brushes
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- 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
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
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- 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
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
一种链板过滤式固液分离装置，包括电机与驱动装置、传送带、水反冲单元、污泥箱；电机与驱动装置驱动一对平行同轴主动链轮啮合并驱动两条平行的链条和链板滤网构成的传送带，还设有一对平行同轴被动链轮啮合两条平行的链条并闭合，若干矩形链板滤网按序将矩形框的两端分别固定在两条平行的链条上并铺满两条平行的闭合链条；传送带包括一对链条与过滤网链板结构，链条与过滤网链板固定结构是每节或N节链条的长度与矩形框的两端边长相同，每根链条与过滤网链板的框两端固定结构是直接固定在链条、或链条固定一侧面的凸出条且凸出条与链条轴平行，滤网链板的框固定在凸出条上。
A chain plate filtering solid-liquid separation device, comprising a motor and a driving device, a conveyor belt, a water recoil unit, and a sludge tank; the motor and the driving device drive a pair of parallel coaxial driving sprockets to engage and drive two parallel chains and The conveyor belt formed by the chain plate screen is also provided with a pair of parallel coaxial passive sprockets to engage and close the two parallel chains. Several rectangular chain plate screens fix the two ends of the rectangular frame on the two parallel chains in sequence. And covered with two parallel closed chains; the conveyor belt includes a pair of chains and a filter screen chain plate structure, the chain and the filter screen chain plate fixed structure is that the length of each or N chain is the same as the length of the two ends of the rectangular frame, each The root chain and the two ends of the frame of the filter screen chain plate are fixed directly on the chain, or the protruding strip on one side of the chain is fixed, and the protruding strip is parallel to the chain axis, and the frame of the filter screen chain plate is fixed on the protruding strip.
Description
Technical Field
The invention relates to a water body (including other liquids) filtering purification or solid-liquid (water impurity) separation device, in particular to a device for removing harmful floating organisms or solid matters such as blue algae and the like in a large-scale water area and purifying the water body in aquaculture industry, and also relates to environment-friendly water treatment equipment. Can treat feed residues generated in pond culture, and separate water impurities such as feces of fishes and the like.
Background
In the aquaculture industry, including fresh water, sea water and artificial sea water, etc., the water area (such as fish pond, river and lake surface, etc.) is cleaned from harmful floating organisms such as blue-green algae, other solid garbage and bait residue, the existent method and equipment have been reported, for example, CN200910100586 blue-green algae automatic catching boat mainly includes suction head A, which is equipped with float bowl, water pump and flat long spray head, algae-water separation equipment B, which is equipped with filter screen, net frame, eccentric shaft and support, driving equipment C, which is equipped with motor (also can use small internal combustion engine), driving wheel belt, motor boat body and water outlet pipe slot, and is formed from flat long spray head, discharged algae-rich water flow and can be flushed into filter screen, and due to the action of vibration force, the water can flow through the net hole and fall into the water outlet pipe slot, and the blue-green algae are blocked by the net hole and fall into the direction of vibration resultant force, the inventor CN 2015110175651 proposes a water body solid-liquid separation equipment and has the right, comprises a conveyor belt, a water inlet, a fan, a nozzle, a water backflushing unit, a gas backflushing unit, a spiral conveying dehydrator, a sludge tank, a clear water tank and a backflushing circulating water tank; the conveying belt is erected above the sludge tank and the clear water tank, the conveying belt is of a permeable grid structure, a filter screen is laid on the permeable grid, the upper part of the feeding end of the conveying belt is a water inlet, one section of the conveying belt at the rear part of the water inlet is provided with an airflow treatment unit, and the discharge end of the conveying belt is a sludge tank back-flushing circulating water tank at the lower part of the conveying chain wheel end; a gas or/and water back flushing unit is arranged at the back layer section of the conveyor belt; the lower part of the water inlet is provided with a clean water tank; a screw conveying dehydrator is arranged in the sludge box.
CN200810024494 discloses a blue algae filtering device, which comprises a storage tank, an opening end is provided on the side wall of the storage tank, a filter screen is provided in the storage tank, the filter screen separates the storage tank into a storage cavity on the upper part and a water outlet cavity on the lower part, the corresponding opening end is also separated into a discharge port on the upper part and a liquid outlet on the lower part, a vibrating machine is provided on the bottom plate of the storage tank, and a plurality of supporting springs are provided on the bottom surface of the storage tank. The blue algae filtering device has the advantages that the blue algae filtering device can rapidly filter the algae-rich water absorbed by the algae sucker, so that the blue algae and the water are thoroughly separated, and the algae slurry meeting the test requirement is obtained.
The applicant proposes a water body solid-liquid separation device in CN201521127472X, which comprises a conveyor belt, a water inlet, a fan, a nozzle, a water back flushing unit, a gas back flushing unit, a spiral conveying dehydrator, a sludge tank, a clear water tank and a back flushing circulating water tank; the conveying belt is erected above the sludge tank and the clear water tank, the conveying belt is of a permeable grid structure, a filter screen is laid on the permeable grid, the upper part of the feeding end of the conveying belt is a water inlet, one section of the conveying belt at the rear part of the water inlet is provided with an airflow treatment unit, and the discharge end of the conveying belt is a sludge tank back-flushing circulating water tank at the lower part of the conveying chain wheel end; a gas or/and water back flushing unit is arranged at the back layer section of the conveyor belt; the lower part of the water inlet is provided with a clean water tank; the sludge box is internally provided with a screw conveying dehydrator which can integrate double functions of conveying and squeezing dehydration. A water diversion plate is arranged at the lower layer of the water inlet, the water diversion plate receives water passing through the filter screen and introduces the water into a second container, the second container is arranged in the clean water tank, and an isolation filter screen is arranged to be isolated from the main container of the clean water tank; the isolation filter screen is in a movable groove shape. The water diversion plate can be in a ridge shape and can divert water from two sides. The water body filtering and purifying device prepared by the prior art is heavy overall, and the used aquaculture water area is inconvenient to traffic and is not beneficial to transportation, installation and use of the device; moreover, the water diversion structure can not drain water externally, only water near the device can be treated when in use, and the device needs to be moved for treating water at a distance. The conveying belt is of a permeable grid structure and is a flexible belt, and the service life of the conveying belt is short although the separation efficiency is high in use.
201710478206.9 is another water body filtering and purifying device provided by the inventor, which comprises a conveyor belt, a conveyor belt bracket, a transmission chain wheel, a supporting chain wheel, a water inlet, a fan, a nozzle, a water backflushing unit and a clean water tank; the transmission chain wheel and the supporting chain wheel are arranged on a conveyor belt bracket, the conveyor belt bracket is arranged on the clear water tank, the conveyor belt is a permeable grid, a filter screen is laid on the permeable grid, the upper part of the filter screen of the conveyor belt is a water inlet, and a cleaning unit is arranged at the back layer section of the conveyor belt; the lower part of the water inlet is provided with a clean water tank; the conveying belt is supported by a driving chain wheel and a supporting chain wheel to form a closed belt, the section of the closed belt is polygonal, and a clear water tank is placed in the center of the polygon. The filter screen is a metal wire mesh, and the filter screen can filter more than 150 meshes, even 350 meshes. The two side edges of the filter screen are fixed with plastic belts with the width of 2-10cm, and the thickness of the plastic belts is 3-20 mm. The filter screen is a metal wire mesh or a nylon mesh, and the filter screen can filter more than 150 meshes, even 350 meshes. However, the transmission of the plastic belt still cannot solve the problem of service life, and when the filter belt is put into feed residues generated in pond culture and excrement, water and impurity separation application of fishes and the like, the filter belt is damaged after being used for more than 1 month, so that the problem of seriously puzzling users is solved.
Disclosure of Invention
The invention aims to provide a water body (including other liquids) filtering and purifying or solid-liquid (water impurity) separating device, which solves the problems of the working reliability and the long service life of the existing separating device. In particular to a device for removing harmful floating organisms or solid matters such as blue algae and the like in a large-scale water area and purifying the water body in the aquaculture industry, and also relates to environment-friendly water treatment equipment. Can also treat feed residues generated in pond culture and excrement, water and impurity separation of fishes and the like. The device has the advantages of light structure, convenient movement, easy treatment of water bodies, especially the filtering and purifying device, easy treatment of the water bodies in the whole larger area, especially consideration of efficiency and removal speed, capability of removing various solids, devices of harmful floating organisms such as blue algae and the like, residual baits, floaters and the like in larger water areas, and great capacity of mechanical automatic treatment.
The technical scheme of the invention is that the chain plate filtering type solid-liquid separation device comprises a motor, a driving device, a conveyor belt, a water backflushing unit and a sludge box; the motor and the driving device drive a pair of parallel coaxial driving sprockets to be meshed and drive a conveying belt consisting of two parallel chains and chain plate filter screens, a pair of parallel coaxial driven sprockets are also arranged to be meshed with the two parallel chains and closed, and the two ends of a rectangular frame are respectively fixed on the two parallel chains by the rectangular chain plate filter screens in sequence and are fully paved with the two parallel closed chains; the conveying belt comprises a pair of chain and filter screen chain plate structures, the length of each section or N sections of chain is the same as the length of the two ends of the rectangular frame, the two-end fixing structures of each chain and the filter screen chain plate frame are protruding strips directly fixed on the chain or one fixed side face of the chain, the protruding strips are parallel to the chain shaft, and the frame of the filter screen chain plate is fixed on the protruding strips.
The driven chain wheel and the driving chain wheel are both regular polygonal gears or circular gears.
A chain fixing side surface protruding strip (extending out from a chain shaft) is parallel to the chain shaft, and a chain plate frame is fixed on the protruding strip; the protruding strips are also in a chain structure, and the two side edges of the frame of the filter screen form a closed annular belt fixed on the protruding strips.
The scraping wheel 10 is a product having an elastic, flexible surface or bristle structure.
More than one layer of filter screen is fixed on the rigid rectangular frame of the chain plate filter screen; the coarse mesh may serve as a support.
The link plate frame of the link plate filter screen 5 is prepared by stainless steel (coated metal or anticorrosive metal material) or plastics (engineering plastics, nylon, PC, PMMA and the like) and is used as a rigid frame (the rigid filter screen is embedded in the rigid frame, so that the rigid frame is convenient to replace); the continuous filter screen in the prior art is easy to damage, and the separation effect is influenced.
Is provided with a water baffle: water baffles are adopted on two sides of the conveyor belt, namely two ends of the chain. So as to prevent the sewage from overflowing to the clean water tank when the rotating speed and the sewage water amount are not consistent when the device works, and the filtering effect is influenced. The water baffles can be corresponding to or integrated with the chain plate frames, the contact part of the side edges of the adjacent chain plate filter screen frames is provided with a flexible sealing strip, and the two ends of the chain plate frame are provided with upward vertical plates which are plates with the water blocking function without additionally arranging the water blocking plates.
The adoption of a variable frequency motor can adjust the reasonable rotating speed according to the sewage quantity and the impurity concentration, and the translational speed of the filter screen per second can be adjusted. The water and impurity separation is carried out at 0.07-1.8 m/s. The better work is 0.2-0.6 m/s, and the speed is adjusted according to the water quantity and the water quality requirements before and after filtration.
The contact part of the side edges of the frames of the adjacent chain plate filter screens is provided with a flexible sealing strip,
the conveyer belt is the grid structure that permeates water and is regarded as the filter screen, and every link joint filter screen adopts the structure that the single plane is as an organic whole, and the filter screen is fixed on single link joint frame, does not receive the influence when equipment rotates, and the conveyer belt constitutes continuous plane filtration.
The filter screen has no movement displacement relative to the chain plate, the tension borne by the filter screen has no pulse change in the operation process, and the service life of the filter screen can be greatly prolonged.
The invention has the beneficial effects that: the water body filtering and purifying device provided by the invention has the advantages that the efficiency and the removing speed are considered, and the problems of the working reliability and the long service life of the existing separating device are particularly solved. A method and a device for removing harmful floating organisms (various floating substances affecting the cleanness of water) such as blue algae in a large water area. The invention has great capability of mechanical automatic processing. The device can be fixed or movable (such as on a ship), can be suitable for solid-liquid separation devices of various water bodies through selection of models and mechanical capacity, and can treat feed residues generated in pond culture and excrement, water and impurity separation of fishes and the like through the device; the method is also used for the solid separation of various sewage treatments, so the method is also an environmental protection device. The water diversion device is simple and reliable in structure without a belt pulley and a chain wheel, particularly, the water diversion device is arranged below a conveying belt (a permeable filter screen frame) by adopting a transmission structure of a chain wheel and a chain, clear water can be discharged outside, the water circulation treatment is facilitated, and a moving device is not needed when the water is treated in a water area. The filter is provided with the water baffle structure, the quality of a filtered water body is guaranteed (no water leakage), the filter is also a continuous plane filter structure, the chain plate filter screen structure is adopted, the rigidity and the flexibility of the filter screen are realized, the continuous filtering mode is realized, the revolutionary change of the prior art is realized, and the filter can be used continuously for three months without damage after the filter screen is used.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic cross-sectional view of the water inlet and the bracket of fig. 1 in a longitudinal section according to the present invention.
FIG. 3 is a schematic longitudinal sectional view of a chain (shaft) section of the present invention;
FIG. 4 is a schematic view of a polygonal sprocket and chain arrangement according to the present invention;
fig. 5 is a schematic diagram of a structure of a conveyor belt formed by the chain plate filter screen.
Fig. 6 is a schematic diagram of the chain plate filter screen structure of the present invention.
Fig. 7 is a schematic view of the structure of the chain fixing (chain plate filter screen) of the invention.
Fig. 8 is a schematic diagram of a frame structure of the chain plate filter screen of the invention.
Detailed Description
As shown in the figure: the sewage treatment device comprises a motor 1, a transmission shaft 2, chain wheels comprising a driving chain wheel 3, a driven chain wheel 3-1, a transmission chain 4, a chain plate filter screen 5, a chain plate support 5-1, a water inlet and water distribution device, namely a water distribution tank 6, a water baffle 7, a high-pressure water pump 8, a water backflushing unit, namely a backflushing device 9, a sewage scraping wheel 10, a sewage collection tank, namely a sludge tank 11 and a clean water tank 12.
The device comprises a motor 1, a driving device, a conveyor belt, a water inlet and distribution device 6, a water backflushing unit 9, a sludge box 11, a sewage scraping wheel 10 and a clean water box; the motor 1 and the driving device drive a pair of parallel coaxial driving sprockets 3 to be meshed and drive a conveyor belt consisting of two parallel chains 4 and a chain plate filter screen 5, the conveyor belt is also provided with a pair of parallel coaxial driven sprockets 3-1, the two parallel chains are closed, and the two ends of a rectangular frame 5-1 are respectively fixed on the two parallel chains by the rectangular chain plate filter screens in sequence and are fully paved with the two parallel closed chains; the conveying belt comprises a pair of chain and filter screen chain plate structures, the chain and filter screen chain plate fixing structures are that the length of each section or N sections of chain is the same as the side length of two ends of a rectangular frame, and the chain and filter screen chain plate frame two-end fixing structures are directly fixed on the chain (shaft).
The frame of the filter screen is made of engineering plastics or plastic materials, the plastic materials can be natural rubber, butylbenzene, butadiene rubber, structural rubber or rubber elastic bodies, and the frame is preferably made of ethylene propylene rubber or micro-foamed PU layer materials.
The conveying belt is a permeable grid serving as a supporting belt, and the permeable grid is paved with a filter screen to obtain functional filtering equipment. Furthermore, the filter screen is a wire mesh, and the filter screen can filter more than 150 meshes and even reach 350 meshes (200 meshes can be used for processing blue algae in the water treatment of aquaculture). The chain plate frame of the chain plate filter screen 5 made of stainless steel or plastics is used as a rigid frame (the rigid filter screen is embedded in the rigid frame, so that the rigid frame is convenient to replace); the continuous filter screen in the prior art is easy to damage, the separation effect is influenced, the service life of the applicant in practical use cannot exceed one month, and the continuous filter screen is not used continuously. The application can continuously work for more than three months without damage.
More than one layer of filter screen is fixed on the rigid rectangular frame of the chain plate filter screen; the chain plate filter screen is a rigid rectangular frame, the rectangular frame and the adjacent part of the rectangular frame are erected on the sludge tank and the clear water tank, the conveyor belt is in a permeable grid structure of the rectangular frame, the permeable grid is directly a filter screen or a permeable coarse net on which the filter screen is laid, the upper surface of the conveyor belt or the upper surface of an inner layer conveyor belt is a water inlet, an air flow treatment unit is arranged on a section of the conveyor belt at the rear part of the water inlet, and the discharge end of the conveyor belt is a sludge tank backwashing circulation water tank at the lower part of the conveying chain wheel end; the back layer section of the conveyor belt is provided with a gas or/and water back flushing unit.
The water inlet is arranged on the upper surface of the conveyor belt or the upper surface of the center inside the conveyor belt; the lower part of the water inlet can be provided with a clean water tank, the lower part of the back flush water outlet is provided with a dirt collecting tank, and the mud scraping wheel is arranged above the dirt collecting tank.
The inside or the side of the clear water tank can be provided with auxiliary equipment such as an ultraviolet sterilization unit and the like.
An outlet pipe is arranged on one side or two sides of the clean water tank, and a water pump is connected to the outlet pipe. Or directly discharged for later use.
The device comprises a transmission shaft 2, a water baffle 7, a high-pressure water pump 8, a sewage scraping wheel 10 and a clean water tank 12; the motor 1 is a variable frequency motor system capable of adjusting speed, and is meshed to a transmission shaft 2 through a speed reducer, the transmission shaft 2 is a transmission shaft 2 of a pair of parallel coaxial driving sprockets 3, a pair of parallel coaxial driven sprockets 3-1 is further arranged, two parallel chains are meshed in a closed mode, the coaxial driven sprockets rotate on a second transmission shaft 2-1, the transmission shaft is parallel to the second transmission shaft and is installed on a cubic rack, a roller conveyor belt is not adopted, the conveyor belt comprises a pair of chains and a filter screen chain plate structure, and a plurality of rectangular chain plate filter screens sequentially fix two ends of a chain plate support of the rectangular chain plate filter screen, namely a rectangular frame 5-1 on the two parallel chains respectively and are fully paved with the two parallel closed chains; the motor and the driving device drive a pair of parallel coaxial driving sprockets 3 to be meshed and drive a conveyor belt consisting of two parallel chains 4 and a filter screen chain plate 5, the length of each chain or N (2-6) sections of the chains is the same as the side length of two ends of a rectangular frame, the fixing structures of the two ends of each chain and the filter screen chain plate frame are directly fixed on the chains, or a protruding strip on one side surface of the chain is fixed and is parallel to a chain shaft, and the chain plate frame is fixed on the protruding strip. The scraping wheel 10 is of a surface flexible (bristle) construction.
The rectangular frame 5-1 is made of steel anticorrosive coating, stainless steel or engineering plastics (nylon and the like); the length (the width of the conveyor belt) of the rectangular frame 5-1 is more than 25 cm, preferably 35-90 cm; the width (which refers to a section of the length direction of the conveyor belt) of the rectangular frame 5-1 is 5-35 cm, and can be larger; a filter screen is embedded in the rectangular frame 5-1; the filter screen is embedded in the inner frame. The filter screen is convenient to replace.
Working examples are as follows: the motor rotates the reduction box to drive the transmission shaft to drive the transmission gear (both clockwise and counterclockwise). The gear drives the chain to do circular motion work.
Sewage and breeding tail water enter the water distribution tank and then horizontally and uniformly flow out, the sewage is flushed to the filter screen by utilizing impact force and free fall weight to intercept impurities and suspended matters in the water on the filter screen (the mesh number of the filter screen can be determined according to the filtering requirement), and the filtered clean water enters the clean water tank and is discharged.
Impurities trapped on the net are transferred to the upper part through the equipment, cleaned through the dirt scraping wheel and the back washing and then transferred to a new cycle. And the sewage after back flushing flows into a sewage collecting tank to be discharged.
The adoption of a variable frequency motor can adjust the reasonable rotating speed according to the sewage quantity and the impurity concentration, and the translational speed of the filter screen per second can be adjusted, and is generally set at 0.07-1.8 m/s for water and impurity separation. The better work is 0.2-0.6 m/s, and the speed is adjusted according to the water quantity and the water quality requirements before and after filtration.
Especially, the gear chain transmission type solar water heater is made of metal materials, has a firm structure, adopts gear chain transmission, has good operation stability and can work all day long. The motor frequency conversion saves energy consumption, and frame construction, maintenance are convenient.
The former patent application of the inventor is also a rotary drum micro-filter, when the former rotary drum micro-filter works, a wheel drum (including continuous filter screens) of 1/3 can work only after being soaked in water, and when the motor drives, the motor can only rotate at low speed at intervals and can not rotate continuously due to the special working principle and the influence of the resistance of water. If the concentration of the treated sewage is inconsistent, the backwashing time needs to be manually adjusted, the water loss is large, and the efficiency is low. The rotary drum micro-filter body and the frame in the prior art are welded by adopting plastic PE (polyethylene) through hot welding, are easy to frost crack and age at low temperature in the north and high temperature in the south, and have the characteristics of plastic materials, instable firmness and short service life. The present invention provides a significant improvement over the above-mentioned deficiencies.
The chain is adopted to drive the chain plate for transmission, so that the loss of the filter screen fixed on the chain plate can be effectively protected.
Can filter out more than 95 percent of suspended matters and sediments in the water (the filtering mesh number can be determined according to the requirements).
And (3) comparison: the general drum micro-filter can only filter the sediment, has poor treatment effect on small micro-suspended matters (if the suspended matters need to be filtered, the meshes need to be more than 200 meshes), needs continuous back washing, has large water loss, and can well solve the defects of the drum micro-filter by the scraping wheel and the back washing in the structure of the chain plate filtering type solid-liquid separator.
Each chain plate filter screen is of a structure integrated by a single plane, the filter screens are fixed on a single chain plate frame and are not influenced by rotation of equipment, large-size (thicker diameter or larger aperture) metal reinforcing nets are adopted for reinforcing the upper layer and the lower layer of the filter screens, the weight of sewage and high impact force of backwashing can be borne, and the reinforcing nets can bear the scraping force of the scraping wheels and protect the loss of the filter screens. The long-term continuity and the service life of the work of the filtering main part can be ensured.
Water baffle: the water baffles are arranged on two sides of the conveying belt, namely two ends of the chain, so that the phenomenon that the sewage overflows to the clean water tank excessively when the rotating speed and the sewage water amount are inconsistent when the device works, and the filtering effect is influenced, is prevented.
The invention has the application range and is suitable for various water impurity separation, culture tail water, tail water filtration, blue algae-algae water separation and the like.
The discharge end of the conveyor belt is provided with a mechanical brush filter screen.
The frame for mounting a pair of driving chain wheels 3 and a pair of driven chain wheels 3-1 and other driving chain wheels (not shown in the figure) can adopt pipe welding without thick and heavy bars.
When the solid-liquid separation of the water body is carried out, the inlet water of the water inlet is uniformly laid on a conveyor belt chain plate filter screen, the filter screen of the conveyor belt is used for filtering in motion, the water is precipitated on the filter screen, the clear water flows to a lower clear water tank, the discharge end of the conveyor belt, namely a lower sludge tank at the end of a conveyor chain wheel, receives the precipitate (which can be provided with a mechanical brush) of the filter screen on the conveyor belt, a gas or/and water back-flushing unit is arranged at the return layer section of the conveyor belt for back-flushing the precipitate attached to the filter screen, and the precipitate falls to a lower sludge tank; the lower part of the water inlet is a clear water tank, a water outlet pipe which receives filtered water is connected with a water pump and discharges the water to a water body, and the water can be sprayed to a certain distance to circulate the water body.
The device can also be used for evenly laying water inlet of the water inlet on a bottom layer conveyor belt filter screen (in the center of the continuous circulating conveyor belt), filtering in motion through the conveyor belt filter screen, precipitating impurities in water on the filter screen, enabling clear water to flow out of a pond or a clear water tank, carrying precipitates (which can be provided with a mechanical brush) on the upper filter screen of the conveyor belt by a discharge end of the conveyor belt, namely a sludge tank at the lower part of the end of the conveying chain wheel, backflushing the precipitates attached to the filter screen by a gas or/and water backflushing unit arranged on a return layer section of the conveyor belt, and enabling the precipitates to fall to the sludge tank.
The conveyor belt driving and fixing structure is a main unit: the conveying belt comprises a driving chain wheel 3 which is meshed with and drives two parallel chains 4 and a chain plate filter screen 5, and a pair of parallel coaxial driven chain wheels 3-1 which are closed by the two parallel chains. The clean water tank is provided with an open slot and can also be in a horn mouth structure.
The driving chain wheel can be a powered driving chain wheel, and other chain wheels are a passive driving chain wheel and a supporting roll (with a rotating gear).
In the basic construction: the filter conveyer belt is erected (can be provided with a supporting device) above the clear water tank, the filter screen is especially a metal wire mesh or a nylon wire mesh, the diameter of the filter screen is more than 150 meshes, if blue algae is filtered, the mesh passing grid needs to be finer, the upper part of the feeding end of the conveyer belt is provided with a water inlet, a grid cleaning unit such as a water flow and air flow processing unit is arranged at the return layer section of the conveyer belt, and wind generated by a fan is uniformly blown to the filter screen through a nozzle.
Example 1: the chain and filter screen chain plate fixing structure is that the length of each section or N sections of chain is the same as the side length (width) of two ends of a rectangular frame: when the length of each section of chain is the same as the length (width) of two ends of the rectangular frame, the chain wheel is in a regular polygon structure, the length of each side is equal to the length of each section of chain, the length of the chain wheel can be more than 6 sides when the chain wheel is in a regular polygon, the pair of driving chain wheels 3 and the pair of driven chain wheels 3-1 are completely the same, the structure, the size and the wheel distance (equal to the length of the rectangular frame 5-1) are included, the driving chain wheels 3 are meshed with and drive the two parallel chains 4, the chains drive the rectangular chain plate filter screen of the conveyor belt main body to rotate and sequentially carry out filtering tasks, when the conveyor belt runs to the contact position of the scraping wheel 10, the brush hair, the fabric or the rubber bumps and the like of the scraping wheel 10 scrape the surface of the filter screen, the solid matters on the surface are physically removed, and simultaneously the backflushing water is arranged at intervals or continuously to wash the surface of the filter screen (on the back surface of the filter screen surface). The middle of each pair of chain wheels 3 can be provided with a fulcrum, and the chain wheel can be replaced by a conveyor belt and a conveying roller, but the effect is not as good as that of the chain wheel.
Example (b): the driving chain wheel 3 and the driven chain wheel 3-1 are regular octagons, each side is provided with a side tooth 3-2 and meshed with each chain, and the length of each chain, namely the width of the filter screen chain plate frame can be 20 cm. It can be any polygon of 9-25, and a large number of sides means an increase in the diameter of the sprocket. The circular chain wheel is also a feasible scheme, but the frame of the rectangular chain plate filter screen is a rigid structure, the strength requirement of the frame is high, when the two ends of the frame and the chains are relatively fixed, the chains need to be arranged to deform when the chains are wound on the chain wheel, the two ends of the frame and the structures for fixing each chain of the chains and the two ends of the filter screen chain plate frame are directly arranged on the chains through two fixing pins, but pin grooves in deformation are reserved, so that the pins slide in the pin grooves, or a protruding strip on one side surface of the chain is fixed and is parallel to a chain shaft, and when the chain plate filter screen frame is fixed on the protruding strip, the sliding of the pins in the pin grooves also needs to be considered.
Several supported driving rollers can be arranged below the plane of the rectangular chain plate conveyor belt.
Example (b): because the fixed structure of each chain and the two ends of the chain plate frame of the filter screen in the rotating operation of the conveyor belt is directly fixed on the chain, or the protruding strips on one fixed side surface of the chain are parallel to the chain shaft, and the chain plate frame is fixed on the protruding strips.
A driving chain wheel or/and a supporting chain wheel can be arranged between the pair of driving chain wheels 3 and the pair of driven chain wheels 3-1 to support the transmission of the conveyor belt.
In the basic construction: the filter conveyer belt is erected (can be provided with a supporting device) at the periphery of the clean water tank, and the conveyer belt transmission chain wheel is used for driving the conveyer belt. The transmission belt is a permeable grid structure (metal grid belt), a filter screen is paved on the permeable grid mainly for transmission, the filter screen can be a metal wire mesh or a nylon wire mesh, the mesh diameter of the filter screen is 80-150 meshes or more, if blue algae is filtered, the mesh grid needs to be thinner, and the upper part of the material conveying end of the transmission belt is a water inlet; or a section of conveying belt at the rear part of the supporting chain wheel (roller) can be supported to be provided with a grid cleaning unit, such as a water flow and air flow processing unit, and the air generated by the fan is uniformly blown to the filter screen through the nozzle;
the water inlet is used for pumping water onto the conveyor belt, and the sludge box (the sewage box) is provided with an outlet; the supporting support chain wheels at the lower part of the conveying belt can support the conveying belt, the outer net can bear a load and hang down when the conveying belt is provided with dirt, the supporting support chain wheel cushion wheels can support the conveying belt and can remove the dirt adhered to the conveying belt when the conveying belt runs by the dirt scraping wheel 10, and a spraying and flushing device (back flushing) and a corresponding water receiving tank are arranged at the tail end of the lower part of the conveying belt.
The support chain wheel carrier roller is arranged under the filter screen at the part with larger bearing capacity (such as a water flow impact part) at the return layer section or other parts of the conveyor belt, and has the function of protecting the filter screen from excessive falling during working, thereby influencing the service life.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A chain plate filtering type solid-liquid separation device is characterized by comprising a motor, a driving device, a conveying belt, a water backflushing unit and a sludge box; the motor and the driving device drive a pair of parallel coaxial driving sprockets to be meshed and drive a conveying belt consisting of two parallel chains and chain plate filter screens, a pair of parallel coaxial driven sprockets are also arranged to be meshed with the two parallel chains and closed, and the two ends of a rectangular frame are respectively fixed on the two parallel chains by the rectangular chain plate filter screens in sequence and are fully paved with the two parallel closed chains; the conveying belt comprises a pair of chain and filter screen chain plate structures, the length of each section or N sections of chain is the same as the length of the two ends of the rectangular frame, the frame two-end fixing structures of each chain and the filter screen chain plate are protruding strips which are directly fixed on the chain or one fixed side face of the chain and are parallel to the chain shaft, and the frame of the filter screen chain plate is fixed on the protruding strips.
2. The scraper-chain filtering solid-liquid separator according to claim 1, wherein the driven sprocket and the driving sprocket are regular polygonal gears or circular gears.
3. The water body solid-liquid separation device of claim 1, wherein a protruding bar is fixed on one side of the chain and is parallel to the chain shaft, and a chain plate frame is fixed on the protruding bar; the protruding strips are also in a chain structure, and the two side edges of the frame of the filter screen form a closed annular belt fixed on the protruding strips.
4. The scraper-chain filtering solid-liquid separator according to claim 1, wherein the surface of the scraper has an elastic and flexible surface or a bristle structure.
5. A scraper filtering solid-liquid separator according to any one of claims 1 to 4, wherein the scraper screen is a rigid rectangular frame to which more than one screen is attached.
6. The apparatus for separating solids from liquids in a body of water as claimed in any one of claims 1 to 4 wherein the apparatus is disposed on the upper surface of the conveyor belt or centrally within the conveyor belt.
7. A scraper-chain filtering solid-liquid separator according to any one of claims 1 to 4, wherein water baffles are provided on both sides of the conveyor belt, i.e. at the chain portions.
8. A chain plate filtering type solid-liquid separator as claimed in any one of claims 1 to 4, wherein the motor is a variable frequency motor, and the moving speed of the screen chain plate is adjustable.
9. A scraper filtering solid-liquid separator according to any one of claims 1 to 4, wherein the flexible sealing strips are provided at the contact points of the side edges of the frames of adjacent scraper filtering screens.
10. A scraper filtering type solid-liquid separator according to any one of claims 1 to 4, wherein the scraper frame of the scraper screen is made of stainless steel or plastic and is a rigid frame; each chain plate filter screen is of a structure integrated with a single plane, and the filter screen is fixed on a single chain plate frame.
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| CN202111073842.6A CN114100237A (en) | 2021-09-14 | 2021-09-14 | A chain plate filter type solid-liquid separation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111073842.6A CN114100237A (en) | 2021-09-14 | 2021-09-14 | A chain plate filter type solid-liquid separation device |
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| CN114100237A true CN114100237A (en) | 2022-03-01 |
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| CN202111073842.6A Pending CN114100237A (en) | 2021-09-14 | 2021-09-14 | A chain plate filter type solid-liquid separation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117379859A (en) * | 2023-12-11 | 2024-01-12 | 广东佛水建设有限公司 | Chain plate net type micro-filter |
| CN118079517A (en) * | 2024-04-18 | 2024-05-28 | 广东德森环保科技有限公司 | A kind of high-efficiency treatment equipment and treatment method for aquaculture wastewater |
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