CN111299121A - River sludge screening equipment and treatment process thereof - Google Patents
River sludge screening equipment and treatment process thereof Download PDFInfo
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- CN111299121A CN111299121A CN202010104492.4A CN202010104492A CN111299121A CN 111299121 A CN111299121 A CN 111299121A CN 202010104492 A CN202010104492 A CN 202010104492A CN 111299121 A CN111299121 A CN 111299121A
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- sludge
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- thick bamboo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- 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
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- 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
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8833—Floating installations
- E02F3/885—Floating installations self propelled, e.g. ship
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/10—Pipelines for conveying excavated materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2230/00—Specific aspects relating to the whole B07B subclass
- B07B2230/01—Wet separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses river channel sludge screening equipment and a treatment process thereof, and relates to the technical field of sludge treatment. Technical scheme is a river course silt screening equipment, which comprises a frame, support in the frame and rotate and be connected with a screening net section of thick bamboo, the axial level of a screening net section of thick bamboo sets up, fixedly connected with is followed its axial spiral setting's baffle on the inner wall of a screening net section of thick bamboo, the both ends of a screening net section of thick bamboo all support on supporting roller, supporting roller rotates to be connected in the frame and by fixing driving motor drive in the frame rotates, the entrance point of a screening net section of thick bamboo is provided with the conveying pipeline, the one end of conveying pipeline is fixed in the frame, the other end is connected on the transmission pipe of desilting ship in the river course. The invention has reasonable structure and can quickly filter the river bottom sludge.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to river sludge screening equipment and a treatment process thereof.
Background
In the middle of the urban planning, often plan to have the river course, especially rainy water area, often plan that the river course flows through from the city, alleviates the discharge pressure of urban ponding with the help of the river course, but silt can be silted up gradually to influence the normal current of ship in the river course and the ponding of river course and discharge.
Therefore, the sludge at the bottom of the river needs to be regularly cleaned, the dredging boat needs to be used for dredging the river, the dredging boat is responsible for dredging the river sludge, the sludge cleaned by the dredging boat needs to be treated, the general treatment mode is to filter the cleaned sludge and then dewater the sludge, and the dewatered sludge is used for burning power generation or fertilizer preparation and other operations.
A novel river sludge screening device and a treatment process thereof are provided.
Disclosure of Invention
The invention aims to provide river channel sludge screening equipment which can rapidly complete screening and filtering of river channel sludge.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a river course silt screening equipment, includes the frame, support in the frame and rotate and be connected with a screening net section of thick bamboo, the axial level of a screening net section of thick bamboo sets up, fixedly connected with is followed the baffle of its axial spiral setting on the inner wall of a screening net section of thick bamboo, the both ends of a screening net section of thick bamboo all support on supporting roller, supporting roller rotates to be connected in the frame and by fixing driving motor drive in the frame rotates, the entrance point of a screening net section of thick bamboo is provided with the conveying pipeline, the one end of conveying pipeline is fixed in the frame, the other end is connected on the transmission pipe of desilting ship in the river course.
Through adopting above-mentioned scheme, the desilting ship in the river course extracts the silt of river course bottom and inputs in the conveying pipeline, the conveying pipeline is connected on the transmission pipe of desilting ship, the transmission pipe is fixed on the kickboard, the transmission pipe is formed by steel pipe and hose concatenation, through the hose connection between the adjacent steel pipe, and the steel pipe part cup joints in the hose, certain length can be taken out in the hose to the steel pipe, make the conveying pipeline whole can stretch out and draw back, directly carry the screening net section of thick bamboo after the silt of river course bottom is extracted in, the screening net section of thick bamboo supports and rolls on supporting roller, roll in-process baffle is with the entrance point direction exit end of silt from the screening net section of thick bamboo, the large granule that can't pass through screening net section of thick bamboo mesh is discharged from the exit end of screening net section of thick bamboo, and silt then falls through the mesh of.
The invention is further configured to: the both ends of screening net section of thick bamboo still fixedly connected with toper fill, the baffle extends to in the toper is fought, the conveying pipeline stretches into in the toper is fought.
Through adopting above-mentioned scheme, fighting at the both ends fixed connection toper of a screening net section of thick bamboo, fighting through the toper and can block silt, avoid silt to spill from the both ends mouth of a screening net section of thick bamboo to make the time of silt in a screening net section of thick bamboo more of a specified duration, the screening is filtered more thoroughly.
The invention is further configured to: an inclined guide groove which is obliquely arranged is further arranged below the outlet end of the conical hopper, and the inclined guide groove is fixed on the rack.
Through adopting above-mentioned scheme, screening net section of thick bamboo can be provided with a plurality ofly, and the large granule that a plurality of screening net section of thick bamboos screened all discharges into oblique guide slot in to discharge the assigned position in unison by oblique guide slot.
The invention is further configured to: one side of the screening net cylinder, which rotates upwards, is also provided with a water spraying pipe, water spraying holes are distributed on one side of the water spraying pipe, which faces the screening net cylinder, at intervals along the axial direction of the water spraying pipe, and a water pump is connected to the water spraying pipe.
Through adopting above-mentioned scheme, when screening net section of thick bamboo filters silt, some granules that exist in the silt block up the mesh of screening net section of thick bamboo easily, to the water spray in the screening net section of thick bamboo, firstly avoid the granule in the silt to block up the mesh, secondly dilute silt for the silt flows faster, can filter sooner.
The invention is further configured to: and the meshes on the screening net barrel are tapered holes with small inside and large outside.
Through adopting above-mentioned scheme, set up the mesh on the screen drum into big-end-up's bell mouth in, when the spray pipe sprayed water in to the screen drum, conical mesh can lead rivers for the granule of plugging up the mesh is spouted more easily.
The invention is further configured to: the below of screening net section of thick bamboo is provided with to be fixed connect the hopper in the frame, the cross-section that connects the hopper is triangle-shaped, just the lower extreme opening that connects the hopper is rectangular shape, the lower extreme opening below that connects the hopper is provided with the medicament pipe that sets up along its lower extreme opening length direction, be provided with out the medicine hole along its axial interval on the medicament pipe, the below of medicament pipe is provided with the discharge tank, the discharge tank is fixed in the frame.
Through adopting above-mentioned scheme, connect the hopper to assemble silt and water to arrange down through the rectangular shape opening of its lower extreme, make silt and water be the cascade form and arrange down, on silt and the in-process that arranges down flowed to the medicament pipe, silt and aquatic are mixed into to medicament pipe spun medicament, make medicament and silt, water mixedly more even.
The invention is further configured to: one side of frame is provided with the excavation pond, the blow-down tank lets in the excavation pond, be provided with the desilting ship in the excavation pond, excavation pond one side still is provided with the filtering ponds, it separates its upper and lower floor to be provided with the filter in the filtering ponds, the mesh of filter is less than the mesh of screening net section of thick bamboo, the bottom of filtering ponds is connected with the delivery pipe, one side of filtering ponds is fixed with the inlet pipe, the inlet pipe is connected on the transmission pipe of desilting ship in the excavation pond.
Through adopting above-mentioned scheme, sneak into silt and the water of medicament and be discharged into and deposit and fully react in the excavation pond, the silt after deposiing and reacting is taken out the silt of pond bottom and is input and carry out the secondary filter in the filter tank through the desilting ship in the excavation pond again, and the large granule remains on the filter and regularly clears up, and the silt after filtering is input again and is carried out the filter-pressing in the filter-press, the water in the silt of discharging.
The invention is further configured to: and a waterproof film is laid at the bottom of the excavation pond.
Through adopting above-mentioned scheme, lay water proof membrane at the bottom of the pool in excavation pond, when the desilting ship extracted the silt of pond bottom, water proof membrane can prevent that the desilting ship from taking away the earth of pond bottom.
The invention is further configured to: the screening net barrel is rotatably connected to the rack, transmission teeth are arranged on the outer wall of the screening net barrel along the circumferential direction of the screening net barrel, and the supporting idler wheels are gears and meshed with the transmission teeth.
Through adopting above-mentioned scheme, set up the driving tooth on the outer wall of a screening net section of thick bamboo, set up supporting roller into rather than the gear of meshing to drive a screening net section of thick bamboo better and roll, avoid taking place to skid between a screening net section of thick bamboo and the supporting roller.
The invention also aims to provide a river channel sludge treatment process, which is used for quickly treating sludge pumped out from the bottom of a river channel.
The technical purpose of the invention is realized by the following technical scheme: a river silt treatment process, S1, choosing a site and digging a pond, digging a pond at the river edge of a cleaning river section, wherein the pond is positioned at the middle position of the cleaning river section or a position close to the middle position; s2, fixing screening equipment, and transporting the screening equipment to the side of a pond and fixing; s3, filtering, namely, extracting river bottom sludge by using a dredging boat, conveying the river bottom sludge into the screening net cylinder through a conveying pipe for filtering, and extracting river water to spray water to the screening net cylinder in the filtering process so as to avoid mesh blockage of the screening net cylinder; s3, adding a medicament, mixing the sludge subjected to primary filtration with water, converging the water in a receiving hopper, discharging the water through an opening at the lower end of the rectangle of the receiving hopper, mixing the medicament in the discharging process, wherein the medicament can be an acid-base neutralizing medicament, a flocculating agent, a bactericide, a leavening agent and the like, and is selected according to needs; s4, precipitating, and inputting the sludge added with the medicament into a dug pond for precipitation and reaction; s5, carrying the dredging boat into the pond, extracting sludge at the bottom of the pond by using the dredging boat, conveying the extracted sludge into the filtering tank for second-step filtering, and regularly cleaning residues on the filtering plate; and S6, dehydrating, inputting the sludge subjected to the second step of filtering into a filter press, dehydrating the sludge through the filter press, and treating the dehydrated sludge for fertilizer preparation, incineration power generation and the like.
By adopting the scheme, after the sludge at the bottom of the river channel is extracted, the sludge is firstly filtered in the first step, then the medicament is added for reaction and precipitation, and the precipitated sludge is filtered in the second step, so that the sludge extracted from the river bottom can be rapidly treated.
In conclusion, the invention has the following beneficial effects: the silt that can conveniently take out the river bottom fast is handled, and is simple high-efficient.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a partial sectional view of the embodiment.
Reference numerals: 1. a frame; 2. screening the net barrel; 3. a guide plate; 4. supporting the rollers; 5. a drive motor; 6. a delivery pipe; 7. a conical hopper; 8. an inclined guide groove; 9. a water spray pipe; 10. a water pump; 11. a receiving hopper; 12. a drug tube; 13. a discharge tank; 14. excavating a pond; 15. a filtration tank; 16. a filter plate; 17. a discharge pipe; 18. and (4) feeding a pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a river sludge screening device comprises a frame 1, wherein two screening cylinders 2 are supported and rotatably connected on the frame 1, the axial direction of the screening cylinders 2 is horizontally arranged, the screening cylinders 2 are supported on supporting rollers 4, two ends of each screening cylinder 2 are respectively supported on the two supporting rollers 4, the screening cylinders 2 are limited by the supporting rollers 4, in order to prevent slipping between the two screening cylinders 2, the screening cylinders 2 are rotatably connected on the frame 1, driving teeth are arranged on the outer wall of each screening cylinder 2 along the circumferential direction of the screening cylinder, the supporting rollers 4 are arranged as gears and meshed with the driving teeth, the supporting rollers 4 are driven by a driving motor 5 to rotate, the corresponding supporting rollers 4 are connected on the same rotating shaft, and the rotating shaft of the driving motor 5 is coaxially and fixedly connected with the gears, the gear is also coaxially and fixedly connected to one of the rotating shafts, the two gears are in chain transmission, the gears are also coaxially and fixedly connected to the two adjacent rotating shafts, and the gears are in chain transmission, so that the driving motor 5 drives the four supporting rollers 4 to synchronously rotate, and the supporting rollers 4 drive the screening net barrel 2 to rotate in the rotating process.
The entrance point of screening net section of thick bamboo 2 is provided with conveying pipeline 6, carry the silt that the river course bottom was taken out in to screening net section of thick bamboo 2 by conveying pipeline 6, conveying pipeline 6 is connected on the transmission pipe of desilting ship, the transmission pipe is fixed on the kickboard, the transmission pipe is formed by steel pipe and hose concatenation, through the hose connection between the adjacent steel pipe, and the steel pipe part cup joints in the hose, certain length can be taken out in the hose to the steel pipe, make conveying pipeline 6 whole can stretch out and draw back, the desilting ship takes out the silt of river course bottom and carries simultaneously in the transmission pipe, the rethread conveying pipeline 6 is carried and is sieved in screening net section of thick bamboo 2 and filter.
Because the axial level of screening net section of thick bamboo 2 sets up, directly spill from its both ends when avoiding silt input screening net section of thick bamboo 2 in, the toper is fought 7 at the both ends of screening net section of thick bamboo 2 still fixed connection, the big opening end that the toper was fought 7 docks with screening net section of thick bamboo 2, conveying pipeline 6 stretches into in the toper is fought 7, but the toper is fought 7 and can be blocked the normal discharge of big granule, so set up guide plate 3 (not shown in the figure) along its axial spiral setting on the inner wall of screening net section of thick bamboo 2, guide plate 3 extends to set up to in the toper is fought 7, guide plate 3 can lead the large granule in the screening net section of thick bamboo 2 to the section of thick bamboo outside at the rolling in.
An inclined guide groove 8 which is obliquely arranged is further formed below the outlet end of the conical hopper 7, and when large particles screened by the screening net barrel 2 are discharged from the opening of the conical hopper 7, the large particles fall into the inclined guide groove 8 and are gathered through the inclined guide groove 8 to be discharged.
When looking for through filtering silt by the screening, silt is more thick, and the mesh that is difficult for through screening net section of thick bamboo 2 falls, and the mesh of screening net section of thick bamboo 2 is plugged up easily to the granule in the silt in addition to drag the filtration efficiency of screening net section of thick bamboo 2 slowly, so set up spray pipe 9 and sprayed water to screening net section of thick bamboo 2 on one side of the level of screening net section of thick bamboo 2, be connected with water pump 10 on the spray pipe 9. Screening net section of thick bamboo 2 is provided with two in this embodiment, and two turning to of screening net section of thick bamboo 2 are opposite, spray pipe 9 is located between two screening net section of thick bamboos 2, and screening net section of thick bamboo 2 is close to spray pipe 9 one side and rotates from bottom to top, the both sides of spray pipe 9 have the hole for water spraying along its axial interval distribution in order to spray water to screening net section of thick bamboo 2, utilize the impact force of rivers, strike the mesh on the screening net section of thick bamboo 2, avoid the mesh to be blockked up by the granule, utilize rivers to dilute silt simultaneously, make silt filter down through the mesh of screening net section of thick.
In order that the water flow sprayed out from the water spraying pipe 9 can be sprayed into the screening net barrel 2 more easily, the meshes of the screening net barrel 2 are set to be conical holes with small inside and large outside, so that the water flow is sprayed into the meshes more easily.
The below of screening net section of thick bamboo 2 is provided with the hopper 11 that connects of fixing in frame 1, and the cross-section that connects hopper 11 is triangle-shaped, and the lower extreme opening that connects hopper 11 is rectangular shape, and lower extreme opening below still is provided with the medicament pipe 12 that sets up along opening length direction, is provided with out the medicine hole along its axial interval on the medicament pipe 12, and the below of medicament pipe 12 is provided with discharge tank 13, and discharge tank 13 fixes in frame 1. The silt filtered through the screening net barrel 2 is mixed with water and gathered in the material receiving hopper 11, then flows down through the lower end opening of the material receiving hopper 11 and is left in a water curtain shape, at the moment, the medicament pipe 12 is mixed with the medicament, and the silt and the water are mixed with the medicament and are discharged into the discharge groove 13 to be uniformly discharged. The chemical agent is selected according to needs, and can be a flocculating agent, a bactericide, a leavening agent, an acid-base neutralizing chemical agent and the like, in the embodiment, the acid-base neutralizing chemical agent is adopted, and diluted concentrated sulfuric acid or alkali is selected for neutralization according to the acidity and alkalinity.
An excavation pond 14 is arranged on one side of a frame 1, a waterproof film is laid on the bottom of the excavation pond 14, the waterproof film is a plastic film in the embodiment, a discharge groove 13 discharges silt and water mixed chemical into the excavation pond 14 for precipitation and full reaction, a dredging boat is arranged in the excavation pond 14, a filter pond 15 is also arranged on one side of the excavation pond 14, a filter plate 16 is arranged in the filter pond 15 to separate the upper layer and the lower layer, the mesh of the filter plate 16 is smaller than that of the screening net barrel 2, a discharge pipe 17 is connected to the bottom of the filter pond 15, a feed pipe 18 is fixed on one side of the filter pond 15, the feed pipe 18 is connected to a transmission pipe of the dredging boat in the pond excavation 14, the silt at the bottom of the excavation pond 14 is pumped into the filter pond 15 through the dredging boat for secondary filtration, residues on the filter plate 16 are cleaned regularly, and the silt filtered by the filter plate 16 is input into a filter, the dewatered sludge is used for burning power generation or fertilizer production and the like.
A river silt treatment process, S1, choosing a site and digging a pond, excavating a pond 14 at the riverside of a cleaning riverway section, wherein the pond is positioned at the middle position of the cleaning riverway section or a position close to the middle position; s2, fixing screening equipment, and transporting the screening equipment to the side of a pond and fixing; s3, filtering in the first step, namely, extracting river bottom sludge by using a dredging boat, conveying the river bottom sludge into the screening net cylinder 2 through the conveying pipe 6 for filtering, and extracting river water to spray water to the screening net cylinder 2 in the filtering process so as to avoid the mesh blockage of the screening net cylinder 2; s3, adding a medicament, mixing the sludge subjected to primary filtration with water, converging the mixed water in the receiving hopper 11, discharging the mixed water through the lower end opening of the rectangle of the receiving hopper 11, mixing the medicament in the discharging process, wherein the medicament can be an acid-base neutralization medicament, a flocculating agent, a bactericide, a leavening agent and the like, and is selected according to needs; s4, precipitating, and inputting the sludge added with the medicament into a dug pond for precipitation and reaction; s5, carrying the dredging boat into the pond, extracting sludge at the bottom of the pond by using the dredging boat, conveying the extracted sludge into the filter tank 15 for second-step filtering, and periodically cleaning residues on the filter plate 16; and S6, dehydrating, inputting the sludge subjected to the second step of filtering into a filter press, dehydrating the sludge through the filter press, and treating the dehydrated sludge for fertilizer preparation, incineration power generation and the like.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a river course silt screening equipment which characterized in that: including frame (1), support and rotate in frame (1) and be connected with a screening net section of thick bamboo (2), the axial level of a screening net section of thick bamboo (2) sets up, fixedly connected with is followed baffle (3) that its axial spiral set up on the inner wall of a screening net section of thick bamboo (2), the both ends of a screening net section of thick bamboo (2) are all supported on supporting roller (4), supporting roller (4) rotate to be connected in frame (1) is gone up and by fixing driving motor (5) drive in frame (1) is rotated, the entrance point of a screening net section of thick bamboo (1) is provided with conveying pipeline (6), the one end of conveying pipeline (6) is fixed in frame (1), the other end is connected on the transmission pipe of desilting ship in the river course.
2. The river sludge screening apparatus of claim 1, wherein: the two ends of the screening net barrel (2) are fixedly connected with conical hoppers (7), the guide plates (3) extend into the conical hoppers (7), and the conveying pipes (6) extend into the conical hoppers (7).
3. The river sludge screening apparatus of claim 2, wherein: an inclined guide groove (8) which is obliquely arranged is further formed below the outlet end of the conical hopper (7), and the inclined guide groove (8) is fixed on the rack (1).
4. The river sludge screening apparatus of claim 1, wherein: one side of the upward rotation of the screening net cylinder (2) is also provided with a water spraying pipe (9), water spraying holes are distributed on one side of the water spraying pipe (9) facing the screening net cylinder (2) at intervals along the axial direction of the water spraying pipe, and a water pump (10) is connected to the water spraying pipe (9).
5. The river sludge screening apparatus of claim 4, wherein: the meshes on the screening net barrel (2) are tapered holes with small inside and large outside.
6. The river sludge screening apparatus of claim 1, wherein: the below of screening net section of thick bamboo (2) is provided with to be fixed connect hopper (11) in frame (1), the cross-section that connects hopper (11) is triangle-shaped, just the lower extreme opening that connects hopper (11) is rectangular shape, the lower extreme opening below that connects hopper (11) is provided with along medicament pipe (12) of its lower extreme opening length direction setting, be provided with out the medicine hole along its axial interval on medicament pipe (12), the below of medicament pipe (12) is provided with discharges groove (13), it fixes to discharge groove (13) on frame (1).
7. The river sludge screening apparatus of claim 6, wherein: one side of frame (1) is provided with excavation pond (14), discharge tank (13) lets in the excavation pond (14), be provided with the desilting ship in the excavation pond (14), excavation pond (14) one side still is provided with filtering ponds (15), be provided with in filtering ponds (15) filter (16) and separate its upper and lower floor, the mesh of filter (16) is less than the mesh of screening net section of thick bamboo (2), the bottom of filtering ponds (15) is connected with delivery pipe (17), one side of filtering ponds (15) is fixed with inlet pipe (18), inlet pipe (18) are connected on the transmission pipe of desilting ship in excavation pond (14).
8. The river sludge screening apparatus of claim 7, wherein: and a waterproof film is laid at the bottom of the excavation pond (14).
9. The river sludge screening apparatus of claim 1, wherein: screening net section of thick bamboo (2) rotate to be connected on frame (1), and be provided with the driving tooth that sets up along its circumference on its outer wall, supporting roller (4) be the gear and with the driving tooth meshing.
10. A river sludge treatment process is characterized in that: s1, selecting a site and digging a pond, and digging a pond at the riverside of the cleaning riverway section, wherein the pond is positioned at the middle part of the cleaning riverway section or a position close to the middle part; s2, fixing screening equipment, and transporting the screening equipment to the side of a pond and fixing; s3, filtering, namely, extracting river bottom sludge by using a dredging boat, conveying the river bottom sludge into the screening net cylinder through a conveying pipe for filtering, and extracting river water to spray water to the screening net cylinder in the filtering process so as to avoid mesh blockage of the screening net cylinder; s3, adding a medicament, mixing the sludge subjected to primary filtration with water, converging the water in a receiving hopper, discharging the water through an opening at the lower end of the rectangle of the receiving hopper, mixing the medicament in the discharging process, wherein the medicament can be an acid-base neutralizing medicament, a flocculating agent, a bactericide and the like, and is selected according to needs; s4, precipitating, and inputting the sludge added with the medicament into a dug pond for precipitation and reaction; s5, carrying the dredging boat into the pond, extracting sludge at the bottom of the pond by using the dredging boat, conveying the extracted sludge into the filtering tank for second-step filtering, and regularly cleaning residues on the filtering plate; and S6, dehydrating, inputting the sludge subjected to the second step of filtering into a filter press, dehydrating the sludge through the filter press, wherein the dehydrated sludge is used for fertilizer preparation or incineration power generation and other treatments, and the water dehydrated from the sludge is discharged into the river channel again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104492.4A CN111299121A (en) | 2020-02-20 | 2020-02-20 | River sludge screening equipment and treatment process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104492.4A CN111299121A (en) | 2020-02-20 | 2020-02-20 | River sludge screening equipment and treatment process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111299121A true CN111299121A (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010104492.4A Pending CN111299121A (en) | 2020-02-20 | 2020-02-20 | River sludge screening equipment and treatment process thereof |
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| Country | Link |
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| CN (1) | CN111299121A (en) |
Cited By (2)
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| CN113216305A (en) * | 2021-06-01 | 2021-08-06 | 浙江尹天环境科技有限公司 | River sludge dredging system |
| CN113235680A (en) * | 2021-05-31 | 2021-08-10 | 张桂莲 | Excavator screening hopper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113235680A (en) * | 2021-05-31 | 2021-08-10 | 张桂莲 | Excavator screening hopper |
| CN113216305A (en) * | 2021-06-01 | 2021-08-06 | 浙江尹天环境科技有限公司 | River sludge dredging system |
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Application publication date: 20200619 |
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