CN113371961A

CN113371961A - Emergent dewatering system of high-density filter bag of self-adaptation suspended solid concentration

Info

Publication number: CN113371961A
Application number: CN202110811518.3A
Authority: CN
Inventors: 杨文文; 张�杰; 唐秀华; 姜玮; 杨剑; 魏宏斌
Original assignee: Changzhou Jintan Water Conservancy Construction Investment Development Co ltd; SHANGHAI ZHONGYAO ENVIRONMENTAL PROTECTION INDUSTRIAL CO LTD
Current assignee: Changzhou Jintan Water Conservancy Construction Investment Development Co ltd; SHANGHAI ZHONGYAO ENVIRONMENTAL PROTECTION INDUSTRIAL CO LTD
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-09-10

Abstract

The invention discloses a high-density filter bag emergency dehydration system capable of self-adapting to suspended matter concentration, which comprises a collection unit, a treatment unit and a dehydration unit which are sequentially arranged along the sludge feeding direction; the processing unit comprises a transportation part and a processing part which are communicated with each other, the transportation part is communicated with the collection unit, and the processing part is communicated with the dehydration unit; the processing part comprises an adaptive device; the dehydration unit comprises a high-density filter bag group which is communicated with the mud distribution pipe. The invention has the advantages of small investment, small occupied area, good sludge dewatering effect, high efficiency, suitability for emergency treatment with large amount of suspended matters, low requirement on site, online full-closed treatment, prevention of secondary pollution such as leakage and the like, on-site installation, convenient recovery equipment after treatment, simple and convenient installation and suitability for emergency treatment of bottom mud of rivers and lakes and treatment of suspended matters polluted by heavy metals.

Description

Emergent dewatering system of high-density filter bag of self-adaptation suspended solid concentration

Technical Field

The invention relates to the technical field of solid waste treatment and disposal, in particular to a high-density filter bag emergency dehydration system adaptive to suspended matter concentration.

Background

At present, most urban water supply plants take water from surface water bodies such as rivers, reservoirs and the like, impurities in raw water are removed through processes such as coagulation, precipitation, filtration, disinfection and the like, and finally drinking water meeting sanitary standards of drinking water is provided. Meanwhile, certain production wastewater and sludge are generated, and because the whole particles of suspended matters in a water supply plant are small and the water content is high, the water supply plant is difficult to dehydrate. The sludge from the production source is mainly from suspended matters such as silt and the like in raw water, inorganic particles such as impurities and the like, chromaticity, plankton or remains of algae and the like, and various flocculating agents such as aluminum salt, iron salt and the like added in the treatment process. The sludge of the water supply plant from the process mainly comes from the sludge discharge of a sedimentation tank and the backwashing water of a filter tank, and the backwashing water of the filter tank is characterized by low sludge concentration and generally only 0.02-0.05 percent of solid content.

Under the influence of water and soil loss, water bodies such as rivers, lakes and the like form sludge accumulation at the bottom of the water, and pollutants are transferred into bottom sludge from the water bodies. The increase of bed mud has influenced the flood discharge function in river course on the one hand, and the pollutant of on the other hand accumulation causes the black smelly phenomenon of water, so the bed mud of environment water needs regularly to clear up.

The common dredging mode of the water body bottom mud is a draining excavation mode, namely, the water is drained and then the mud is excavated manually or mechanically; the pumping external discharge type is adopted, namely sludge and water are stirred into slurry and conveyed to a stacking field by a pump; the underwater digging mode is adopted, namely, a digging machine is used for directly digging bottom mud from the water bottom and transporting the bottom mud away by a vehicle or a ship; the method is of a cutter suction dehydration type, namely, bottom mud is stirred by a reamer of a cutter suction boat, and formed muddy water is conveyed to a mud dehydrator on the bank or on the boat by a pump to be dehydrated into mud cakes and transported outside; in addition, methods for treating the sediment of the water body in a microbial degradation mode and the like are also provided.

Sludge dewatering and reducing technologies such as natural dewatering and drying methods, mechanical dewatering and the like are only suitable for treatment and disposal of sludge without pollution or slight pollution, and secondary pollution is easy to generate. With the increasing severity of the environmental pollution situation and the increasing tension of land resources in China, the single sludge dehydration treatment process is difficult to adapt to the requirements of social development.

Chinese patent CN108793651B discloses a river channel sludge rapid dehydration and solidification device, which is used for air-drying and dehydrating the entering sludge through a filter cartridge feed inlet and a vent, and has the advantages of short solidification period, low process cost, small treatment capacity and unsuitability for treating water bodies with large river channel sludge.

Chinese patent CN213313526U discloses a sludge remover at the bottom of a sedimentation tank, wherein a rotary sludge suction knife is arranged on a bracket and scrapes and collects sludge at the bottom of the tank through the movement of a rotating shaft. The machine has the characteristics of strong processing capacity and the like, but is suitable for a sedimentation tank of a processing plant, is not suitable for emergency treatment of external water bodies, and mechanical equipment is difficult to erect and dismantle.

Above patent has all solved the problem of sludge treatment and collection to a certain extent, but because the mud concentration change of advancing of river lake bed mud is great, for improving the sludge dewatering rate, the curing agent that corresponds adds the medicine volume also is different, if adds the medicine volume for the fixed value, can lead to flocculation effect not good, adds the too big circumstances of medicine volume etc.. The treatment of the river and lake bottom mud needs to treat a large amount of waste in a short time, belongs to emergency treatment, has limited investment on equipment, needs to restore ecology in time after the treatment is finished, and is not suitable for the erection of large-scale mechanical equipment.

In order to solve the above problems, there is still a need to explore a low-cost sludge treatment apparatus that can change the dosage according to the characteristics of sludge to cope with emergency treatment of bottom sludge of rivers and lakes or emergency dehydration of sludge water discharged from waterworks.

Disclosure of Invention

The invention aims to provide a high-density filter bag emergency dewatering system adaptive to suspended matter concentration, and aims to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a high-density filter bag emergency dehydration system adaptive to suspended matter concentration,

the collecting unit is used for collecting the sediment of the water body;

the treatment unit comprises a transportation part and a treatment part which are communicated with each other, the transportation part is communicated with the collection unit, and the treatment part is communicated with the dehydration unit;

the transportation part comprises a buffer pool and a water outlet module connected with the buffer pool; the buffer pool is communicated with the collecting unit, and the water outlet module is communicated with the treatment part;

the treatment part comprises a self-adaptive device, an inlet of the self-adaptive device is communicated with the water outlet module, an outlet of the self-adaptive device is communicated with a mud distribution pipe, and the mud distribution pipe is communicated with the dehydration unit;

the dehydration unit comprises a high-density filter bag group, and the high-density filter bag group is communicated with the sludge distribution pipe.

Preferably, the collection unit comprises a submersible sewage pump, and an outlet of the submersible sewage pump is communicated with the buffer pool through a conveying pipe.

Preferably, the water outlet module comprises a mud suction well, the mud suction well is arranged in the buffer pool, a mud suction pump is arranged in the mud suction well, and an inlet of the buffer pool is provided with a grid; and the outlet of the mud suction pump is communicated with the self-adaptive device through a communicating pipe.

Preferably, a high-efficiency mixing unit is arranged in the self-adaptive device; the inlet of the high-efficiency mixing unit is connected with the communicating pipe, and the outlet of the high-efficiency mixing unit is communicated with the mud distributing pipe; and a monitoring system for detecting the sludge flow and the solid content is arranged in the high-efficiency mixing unit.

Preferably, the high-density filter bag group comprises a plurality of first high-density filter bags, a plurality of second high-density filter bags and a plurality of third high-density filter bags; the first high-density filter bag, the second high-density filter bag and the third high-density filter bag are communicated with the mud distribution pipe.

Preferably, the first high-density filter bags are arranged in a staggered mode, and the arrangement mode of the second high-density filter bags and the arrangement mode of the third high-density filter bags are the same as that of the first high-density filter bags.

Preferably, the design circumferences of the first high-density filter bag, the second high-density filter bag and the third high-density filter bag are 6-30 m.

Preferably, the first high-density filter bag, the second high-density filter bag and the third high-density filter bag are respectively provided with a filling port, and the filling ports are communicated with the mud distribution pipe.

Preferably, the diameter of the filling opening is 0.2m-0.4m, and the length of the cuff of the filling opening is 0.5m-0 m.

Preferably, a water-blocking belt is arranged on the ground below the dewatering unit, a plurality of water outlets are arranged on the ground below the dewatering unit, and the water outlets are arranged at the lowest point of the ground of the inner ring of the water-blocking belt.

The invention discloses the following technical effects: compared with the prior art, the high-density filter bag emergency dehydration system adaptive to suspended matter concentration provided by the invention has the following beneficial effects:

(1) the invention adopts a flow and concentration sensor and a PLC automatic control system through a self-adaptive device, and automatically adjusts the adding amount of the flocculating agent in real time according to the concentration and the flow change of suspended matters. Utilize the high-efficient mixing unit in the self-adaptation device to make the effect that the granule was abolished to the vacuole, improve the mixed effect of mud and medicament, reduce medicament dosage 20% -40% to guarantee the stability of flocculation effect, monitor a plurality of indexes simultaneously, realize unmanned on duty, use manpower sparingly and medicament expense.

(2) The invention has the advantages of less equipment investment, on-site installation, convenient equipment recovery after treatment, simple and convenient installation and suitability for emergency treatment of river and lake bottom mud.

(3) The invention can simultaneously dehydrate a large amount of suspended matters in a short time, has higher efficiency and is suitable for emergency treatment with larger amount of suspended matters.

(4) The invention adopts the multi-layer arrangement of the high-density filter bags, has high site utilization rate, adopts the gravity and pressure mode to dewater, and saves energy.

(5) The invention has small engineering occupied area, low requirement on the field, online full-closed treatment and prevention of secondary pollution such as leakage and the like.

(6) The invention has good sludge dewatering effect, clear filtrate and water content of filter cakes which are placed according to the sludge property and can be reduced to below 70 percent.

(7) The self-adaptive device disclosed by the invention is added with other medicaments according to the sludge feeding characteristic and is mixed, and is suitable for treating and disposing suspended matters polluted by heavy metals.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic diagram of a high density filter bag emergency dewatering system of the present invention adaptive to suspended matter concentration;

FIG. 2 is a three-dimensional view of a high density filter bag set;

the device comprises a sewage submersible pump 1, a conveying pipe 2, a mud sucking well 3, a mud sucking pump 4, a buffer pool 5, a self-adaptive device 6, a mud distributing pipe 7, a first high-density filter bag 8, a second high-density filter bag 9, a third high-density filter bag 10, a filling port 11, a water blocking tape 12, a water outlet 13 and a communicating pipe 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1-2, the invention provides a high-density filter bag emergency dehydration system adaptive to suspended matter concentration, which comprises a collection unit, a treatment unit and a dehydration unit which are sequentially arranged along a sludge feeding direction;

the collecting unit is used for collecting the bottom mud of the water body;

the processing unit comprises a transportation part and a processing part which are communicated with each other, the transportation part is communicated with the collection unit, and the processing part is communicated with the dehydration unit;

the transportation part comprises a buffer pool 5 and a water outlet module connected with the buffer pool 5; the buffer pool 5 is communicated with the collecting unit, and the water outlet module is communicated with the processing part;

the treatment part comprises a self-adaptive device 6, an inlet of the self-adaptive device 6 is communicated with the water outlet module, an outlet of the self-adaptive device 6 is communicated with a sludge distribution pipe 7, and the sludge distribution pipe 7 is communicated with the dehydration unit;

the dehydration unit comprises a high-density filter bag group which is communicated with the mud distributing pipe 7.

According to a further optimized scheme, the collecting unit comprises a submersible sewage pump 1, an inlet of the submersible sewage pump 1 enters water, and an outlet of the submersible sewage pump 1 is communicated with a buffer pool 5 through a conveying pipe 2; the conveying pipe 2 is a hose and can convey sludge pumped up by the submersible sewage pump 1 for a long distance; the flow of the submersible sewage pump 1 is 40m³/h-50m³And h, ensuring the dredging efficiency.

According to a further optimized scheme, the water outlet module comprises a mud sucking well 3, the mud sucking well 3 is arranged in a buffer pool 5, a mud sucking pump 4 is arranged in the mud sucking well 3, and a grid is arranged at an inlet of the buffer pool 5; the outlet of the dredge pump 4 is communicated with the self-adaptive device 6 through a communicating pipe 14; the buffer pool 5 is arranged near a sludge dewatering field, the grid distance is 20mm, and the buffer pool is used for intercepting large sundries and garbage, so that the sludge water in the continuous stable operation buffer pool 5 of the online sludge treatment system is absorbed by the sludge suction pump 4 in the sludge suction well 3 after being buffered, and is pumped into the self-adaptive device 6.

In a further optimized scheme, a high-efficiency mixing module is arranged in the self-adaptive device 6, the inlet of the high-efficiency mixing module is connected with a communicating pipe 14, and the outlet of the high-efficiency mixing module is communicated with a mud distributing pipe 7; a monitoring system for detecting the sludge flow and the solid content is arranged in the high-efficiency mixing module, and a stirring unit is arranged in the high-efficiency mixing module; the high-efficiency mixing module comprises a mixing unit, a flocculating agent leading-in unit and a turbulent flow unit; the mixing unit adopts a brand-new structure of the first mixing pipe body and the second mixing pipe body, so that the flocculant and sludge water are mixed, the mixing efficiency is high, the effect is good, and the whole structure occupies small space; a flocculating agent leading-in unit prepares a flocculating agent solution with concentration which is several times higher than that of a common flocculating agent (water-saving and compact), a special flocculating agent adding and mixing system is adopted for online adding, high-speed flocculation is carried out, and a heavy metal fixing agent and a toxic pollutant adsorbent are added according to the requirement; the turbulent flow unit and the stirring unit realize violent turbulent flow and mechanical stirring, so that liquid sludge and a coagulant are fully mixed, meanwhile, the stirring unit adopts a rotating motor to provide power, the mixing degree is increased, the spiral blades are arranged, a flocculating agent in the mixer can be continuously and uniformly contacted with sludge particles, the bridging and adsorption effects of flocculating agent particles on colloid particles are effectively increased, the mixing and flocculating effects are better, the spiral blades rotating at high speed generate a cavitation effect, the finely-ground sludge particles are efficiently smashed by utilizing the cavitation effect, the sludge particles are crushed, the sludge and the flocculating agent are efficiently mixed and rapidly flocculated, and the sludge is easier to dewater; the self-adaptive device 6 can set the proper forward and reverse rotation period of the stirring unit according to the impurity content of the sludge, prevent impurities in the sludge from winding the stirring unit and ensure the continuous and stable operation of facilities.

According to a further optimized scheme, the high-density filter bag group comprises a plurality of first high-density filter bags 8, a plurality of second high-density filter bags 9 and a plurality of third high-density filter bags 10; the first high-density filter bag 8, the second high-density filter bag 9 and the third high-density filter bag 10 are all communicated with the mud distribution pipe 7; the first high-density filter bag 8, the second high-density filter bag 9 and the third high-density filter bag 10 are respectively provided with a filling port 11, and the filling ports 11 are communicated with the mud distributing pipe 7; the diameter of the filling opening 11 is 0.2m-0.4m, the length of the cuff of the filling opening 11 is 0.5m-1.0m, and the number of the filling openings 11 is 1 at intervals of 15-20 m; the mud distributing pipe 7 is used for respectively adding the mixed mud into the first high-density filter bag 8, the plurality of second high-density filter bags 9 and the plurality of third high-density filter bags 10 through the filling port 11, and a valve is arranged on the mud distributing pipe 7 to control the connection of the mud distributing pipe and the first high-density filter bag 8, the second high-density filter bags 9 and the third high-density filter bags 10; the pore areas of the first high-density filter bag 8, the second high-density filter bag 9 and the third high-density filter bag 10 are different and can be selected according to the components of sludge.

According to a further optimized scheme, a plurality of first high-density filter bags 8 are arranged in a staggered mode, and the arrangement mode of second high-density filter bags 9 and third high-density filter bags 10 is the same as that of the first high-density filter bags 8; the first high-density filter bag 8, the second high-density filter bag 9 and the third high-density filter bag 10 are arranged in a staggered manner in a shape like the Chinese character 'pin', the site utilization rate is improved in the staggered manner in the shape like the Chinese character 'pin', and the dehydration rate is accelerated by mutual extrusion among the bag bodies.

According to the further optimization scheme, the designed circumferences of the first high-density filter bag 8, the second high-density filter bag 9 and the third high-density filter bag 10 are all 6m-30m, namely the circumferences of the occupied open space by the filter bags are flattened, the filling volume of the filter bags in unit area is approximately in direct proportion to the first square of the circumferences, and the larger the circumference size is, the larger the filling volume is.

The scheme is further optimized, the high-density filter bag is formed by weaving composite (strip-shaped) and unidirectional high-toughness polypropylene or polyester fibers, and the high-density filter bag widely used in engineering is made of polypropylene materials mostly. The strength of the polypropylene stretch yarn is second to that of nylon, but the price of the polypropylene stretch yarn is 1/3 of the nylon; the prepared fabric has stable size, good wear resistance and elasticity and good chemical stability; the high-density filter bag can select pipe bags with different equivalent apertures according to sludge with different properties, and the pipe bags with larger surface equivalent apertures (about 0.5mm) can be adopted for sandy sludge. For sludge with fine particles, a pipe bag with slightly smaller equivalent pore diameter (about 0.3mm) on the surface is needed; the material of the high-density filter bag has certain tensile strength and transverse and longitudinal elongation, and the strength of the material can reach more than 80% of the original strength after 500h of ultraviolet resistance test; the length of the high-density filter bag tube bag can be flexibly set according to the size of a dehydration field; the high-density filter bag and the tube bag are sewn in a manner that seams are arranged along the circumferential direction of the tube bag, the stress of the center of the tube bag to the circumferential direction of the tube bag is the largest, and the sewing manner of the tube bag along the circumferential direction is better in stress; before filling the high-density filter bag tube bag, a non-telescopic rope is required to be used for fixing; after the sludge in the high-density filter bag pipe bag is dehydrated to reach the designed water content, the high-density filter bag pipe bag can be directly buried in the soil in situ, or a construction machine can be used for breaking the pipe bag of the soil engineering, and the broken pipe bag and the sludge are transported together for landfill or incineration treatment.

According to the further optimization scheme, a water-blocking tape 12 is arranged on the ground below the dehydration unit, a plurality of water outlets 13 are arranged on the ground below the dehydration unit, and the water outlets 13 are arranged at the lowest points of the ground of the inner ring of the water-blocking tape 12; the water outlet 13 collects liquid generated after solid-liquid separation of the high-density filter bag group, the water blocking tape 12 can prevent the separated liquid from diffusing, and the liquid collected by the water outlet 13 is discharged after being treated.

The using method comprises the following steps:

installing a submersible sewage pump 1 at a water channel sludge position and installing a water filtering grid; the water outlet of the submersible sewage pump 1 is communicated with a buffer pool 5 through a conveying pipe 2; the submersible sewage pump 1 is started to pump sludge at the bottom of the water channel and is conveyed into the buffer tank 5 through the conveying pipe 2, and the mechanical grid is arranged at the water inlet of the buffer tank 5 to intercept large sundries and garbage, so that the continuous and stable operation of the sludge online treatment system is ensured.

The sludge water in the buffer tank 5 flows into the sludge suction well 3 after being buffered and precipitated, is sucked away by the sludge suction pump 4 in the sludge suction well 3 and is sent into the self-adaptive device 6 through the communicating pipe 14.

The self-adaptive device 6 is internally provided with an online monitoring system for the sludge flow and the solid content, which is used for automatically controlling the adding amount of the flocculating agent and other agents, thereby not only facilitating the accurate control of experimental conditions, but also realizing the accurate measurement of engineering quantity and the accurate measurement and calculation of the decontamination cost.

The flocculant prepared by the flocculant leading-in unit of the self-adaptive device 6 has the preparation concentration which is several times higher than that of the common flocculant, is more water-saving and more compact in structure, is added on line by adopting a special flocculant adding and mixing system, is flocculated at high speed, and is added with a heavy metal fixing agent and a toxic pollutant adsorbent as required.

The turbulent flow unit and the stirring unit of the self-adaptive device 6 realize violent turbulent flow and mechanical stirring, so that liquid sludge and a coagulant are fully mixed, meanwhile, the stirring unit adopts a rotating motor to provide power, the mixing degree is increased, and the spiral blades are arranged, so that a flocculating agent in a mixer can be continuously and uniformly contacted with sludge particles, the bridging and adsorption effects of flocculating agent particles on colloid particles are effectively increased, the mixing and flocculating effects are better, the spiral blades rotating at high speed generate a cavitation effect, the fine sludge particles are efficiently smashed by utilizing the cavitation effect, the sludge particle crushing treatment is carried out, the sludge and the flocculating agent are efficiently mixed and rapidly flocculated, and the sludge is easier to dewater; the self-adaptive device 6 can set the proper forward and reverse rotation period of the stirring unit according to the impurity content of the sludge, prevent impurities in the sludge from winding the stirring unit and ensure the continuous and stable operation of facilities.

The treated sludge water is sent into a high-density filter bag group through a sludge distribution pipe 7; high-density filter bags with equivalent apertures on different surfaces are selected according to the specific condition of the sludge water, and the flow direction and the flow rate of the sludge water are controlled by a valve on the sludge distribution pipe 7.

The sludge water flows into one or more of the first high-density filter bag 8, the second high-density filter bag 9 and the third high-density filter bag 10, the high-density filter bags with equivalent apertures on the same surface are staggered in a shape like a Chinese character 'pin', the site utilization rate is improved, and the dehydration rate is accelerated by mutual extrusion among the high-density filter bag bodies; water in the sludge water is filtered out through surface holes of the high-density filter bag, flows into a range surrounded by the water-blocking tape 12, is collected through the water outlet 13 and is discharged after treatment; after the sludge water in the high-density filter bag is dehydrated to reach the designed water content, the soil can be directly covered and buried in situ, or the construction machinery can be used for breaking the geotechnical tube bag, and the broken tube bag and the sludge can be transported and buried or burned together.

The invention has the advantages of less equipment investment, small occupied area, good sludge dewatering effect, high efficiency, suitability for emergency treatment with large amount of suspended matters, low requirement on the field, online full-closed treatment, prevention of secondary pollution such as leakage and the like, on-site installation, convenient recovery of equipment after treatment, simple and convenient installation and suitability for emergency treatment of river and lake bottom mud and treatment and disposal of suspended matters polluted by heavy metal.

Application example 1 of the present invention:

area of a certain water area 3000m²The depth of the sludge is 0.67m, and the required desilting amount is about 2000m³According to detection, the dry-basis organic matter content of the underwater sludge is about 3 percent on average and 7.6 percent at most, the solid content is 30 percent DS, and the density is 1225Kg/m³And about 735 tons of absolutely dry sludge is subjected to heavy metal detection, and suspended matters contain various metals, wherein cadmium exceeds the standard. Wherein the submersible sewage pump 1 is a cutter suction type water pump, and the flow of the pump is kept at 50m³H is used as the reference value. When the submersible sewage pump 1 pumps the bottom sediment, the river (lake) water around the bottom sediment wraps the sludge and enters the pipeline, so that the sludge and pollutants contained in the sludge enter the treatment system instead of being diffused into the surrounding river (lake) water. In order to prevent the adverse effects of garbage, sundries and the like with larger sizes at the bottom of a river (lake) on the sludge online treatment device, the project is designed to arrange a volume of 100m near a dehydration site³The buffer pool 5, the configuration 20 mm's mechanical grid is used for intercepting big debris and rubbish before the buffer pool 5, guarantees the continuous steady operation of self-adaptation device 6, and flocculating agent leading-in unit adds the flocculating agent, and through the abundant reaction with the flocculating agent, the settleability of silt solid obtains showing the promotion.

The self-adaptive device 6 is integrated in a container, the self-adaptive device 6 comprises an online monitoring system for the sludge flow and the solid content, and is used for automatically controlling the adding amount of the flocculating agent and other agents, so that the experimental conditions are accurately controlled, and the accurate measurement of the engineering quantity and the accurate measurement and calculation of the desilting cost are realized; the sludge particles are crushed, and the fine sludge particles are efficiently crushed and beaten by adopting the cavitation action, so that the sludge is easier to dehydrate; and a flocculating agent introducing unit is used for preparing flocculating agent, adding and mixing the flocculating agent into the sludge, wherein the prepared flocculating agent has a concentration which is several times higher than that of a common flocculating agent, a special flocculating agent adding and mixing system is used for online adding, high-speed flocculation is carried out, and meanwhile, a heavy metal fixing agent and a toxic pollutant adsorbent are added into the flocculating agent introducing unit as required. And the online monitoring system for the sludge flow and the solid content in the self-adaptive device 6 adjusts the flow of the submersible sewage pump 1 on line according to the flow of the sludge water and the sludge content.

Water absorptionThe mud is filtered out through a high-density filter bag under the pressure and gravity of the mud pump 4, and 99.9 percent of solid is left in the cloth bag. Dehydrating to obtain the product with solid content of 60% DS and density of 1569kg/m³The dewatered sludge of (2). Because the sludge storage yard is internally provided with the sewage treatment facility, the filtered water can be converged into the sewage treatment tank in the sludge storage yard and is discharged after reaching the standard after being treated by the sewage treatment facility.

Application example 2 of the present invention:

the designed flow of the sludge in the sludge balance tank of a certain water plant is 40m³The/h submersible sewage pump 1 is filled with 2 high-density filter bags of 3mX10m, and washing water or backwashing water is avoided in the process and operation. The sludge with the solid content of 3.6 percent in the existing sludge balance tank is conveyed into the self-adaptive device 6 through the sludge suction pump 4 and the communicating pipe 14. The self-adaptive device 6 is integrated in a container, 2 high-density filter bags are arranged on a sludge dewatering field, and the treated sludge is distributed through a valve and a sludge distribution pipe 7. The function of sludge distribution is to distribute the sludge into designated high-density filter bags according to the requirements of field conditions. The sludge treated by the self-adaptive device 6 is poured into a high-density filter bag and fully reacts with a flocculating agent, and the settleability of the sludge solid is obviously improved. The water is filtered out through the cloth bag under the pressure of the dredge pump 4 and the self gravity, and 99.9 percent of solid is left in the cloth bag.

A high-density dewatering bag is stacked by utilizing a road between an existing sludge balance pond and a sludge dewatering machine room in a factory. A water filtering layer is arranged under the high-density dehydration bag. Waterproof sandbags are stacked at two ends of the road to serve as the water blocking belts 12, so that water penetrating through the high-density filter bags is prevented from flowing out, and the water is discharged into nearby rainwater wells nearby.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides an emergent dewatering system of high-density filter bag of self-adaptation suspended solid concentration which characterized in that: comprises a collecting unit, a processing unit and a dewatering unit which are arranged in sequence along the sludge feeding direction;

the collecting unit is used for collecting the sediment of the water body;

the transportation part comprises a buffer pool (5) and a water outlet module connected with the buffer pool (5); the buffer pool (5) is communicated with the collection unit, and the water outlet module is communicated with the treatment part;

the treatment part comprises a self-adaptive device (6), an inlet of the self-adaptive device (6) is communicated with the water outlet module, an outlet of the self-adaptive device (6) is communicated with a sludge distribution pipe (7), and the sludge distribution pipe (7) is communicated with the dehydration unit;

the dehydration unit comprises a high-density filter bag group which is communicated with the sludge distribution pipe (7).

2. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 1, characterized in that: the collection unit comprises a submersible sewage pump (1), and an outlet of the submersible sewage pump (1) is communicated with the buffer pool (5) through a conveying pipe (2).

3. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 1, characterized in that: the water outlet module comprises a mud sucking well (3), the mud sucking well (3) is arranged in the buffer pool (5), a mud sucking pump (4) is arranged in the mud sucking well (3), and a grid is arranged at an inlet of the buffer pool (5); the outlet of the dredge pump (4) is communicated with the inlet of the self-adaptive device (6) through a communicating pipe (14).

4. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 3, characterized in that: a high-efficiency mixing unit is arranged in the self-adaptive device (6); the inlet of the high-efficiency mixing unit is connected with the communicating pipe (14), and the outlet of the high-efficiency mixing unit is communicated with the mud distributing pipe (7); and a monitoring system for detecting the sludge flow and the solid content is arranged in the high-efficiency mixing unit.

5. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 1, characterized in that: the high-density filter bag group comprises a plurality of first high-density filter bags (8), a plurality of second high-density filter bags (9) and a plurality of third high-density filter bags (10); the first high-density filter bag (8), the second high-density filter bag (9) and the third high-density filter bag (10) are communicated with the mud distribution pipe (7).

6. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 5, characterized in that: the first high-density filter bags (8) are arranged in a staggered mode, and the arrangement mode of the second high-density filter bags (9) and the third high-density filter bags (10) is the same as that of the first high-density filter bags (8).

7. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 5, characterized in that: the design circumferences of the first high-density filter bag (8), the second high-density filter bag (9) and the third high-density filter bag (10) are both 6-30 m.

8. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 5, characterized in that: the first high-density filter bag (8), the second high-density filter bag (9) and the third high-density filter bag (10) are respectively provided with a filling port (11), and the filling ports (11) are communicated with the mud distribution pipe (7).

9. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 8, characterized in that: the diameter of the filling opening (11) is 0.2m-0.4m, and the length of the cuff of the filling opening (11) is 0.5m-1.0 m.

10. The high-density filter bag emergency dewatering system capable of adapting to suspended matter concentration according to claim 1, characterized in that: the water-blocking belt (12) is arranged on the ground below the dewatering unit, a plurality of water outlets (13) are arranged on the ground below the dewatering unit, and the water outlets (13) are arranged at the lowest points of the ground of the inner ring of the water-blocking belt (12).