CN114940574B - Mud flocculation and concentration unit - Google Patents

Mud flocculation and concentration unit

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Publication number
CN114940574B
CN114940574B CN202210800794.4A CN202210800794A CN114940574B CN 114940574 B CN114940574 B CN 114940574B CN 202210800794 A CN202210800794 A CN 202210800794A CN 114940574 B CN114940574 B CN 114940574B
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China
Prior art keywords
pump
dosing
slurry
mud
pipe
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CN202210800794.4A
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Chinese (zh)
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CN114940574A (en
Inventor
崔勇涛
钱晓明
赵东华
郑岩皓
陈晨
张翔翔
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Shanghai Waterway Engineering Design and Consulting Co Ltd
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Shanghai Waterway Engineering Design and Consulting Co Ltd
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Priority to CN202210800794.4A priority Critical patent/CN114940574B/en
Publication of CN114940574A publication Critical patent/CN114940574A/en
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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/834—Mixing in several steps, e.g. successive steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
    • B01F33/8362—Mixing plants; Combinations of mixers combining mixing with other treatments with chemical reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/213—Measuring of the properties of the mixtures, e.g. temperature, density or colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/2201—Control or regulation characterised by the type of control technique used
    • B01F35/2202—Controlling the mixing process by feed-back, i.e. a measured parameter of the mixture is measured, compared with the set-value and the feed values are corrected
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2211—Amount of delivered fluid during a period
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2212—Level of the material in the mixer
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/06—Sludge reduction, e.g. by lysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a slurry flocculation concentration device, which comprises a slurry flocculation device and a slurry precipitation device, wherein the slurry flocculation device comprises a slurry inlet pump, a first dosing pump, a first hollow spiral dosing pipe, a stirrer, a slurry outlet pump and a mixing box, wherein the inside of the mixing box is divided into a dosing mixing area and a forced mixing area through a baffle plate, the slurry inlet pump and the slurry outlet pump are fixed at the lower end of the mixing box through flanges, the slurry inlet pump is communicated with the dosing mixing area, the slurry outlet pump is communicated with the forced mixing area, the first hollow spiral dosing pipe is spirally arranged in the dosing mixing area from bottom to top, the surface of the first hollow spiral dosing pipe is uniformly perforated along the pipe body direction, one end of the first hollow spiral dosing pipe is sealed, the other end of the first hollow spiral dosing pipe is connected with the first dosing pump, the stirrer is arranged at the top of the mixing box and is positioned in the dosing mixing area, and the slurry outlet pump conveys slurry after mixing reaction to the slurry precipitation device.

Description

Mud flocculation concentration device
Technical Field
The invention belongs to the technical field of river and lake bottom mud dredging mud and engineering construction mud treatment, and particularly relates to a mud flocculation concentration device.
Background
In the process of endogenous dredging of river and lake polluted bottom mud and engineering construction (shield and piling), a large amount of mud is often generated, for example, the construction progress of engineering is affected due to untimely treatment, and serious harm is caused to the environment. Meanwhile, the slurry dewatering reduction technology is increasingly widely applied in engineering, and flocculation concentration is needed to reduce the treatment pressure of subsequent dewatering before the slurry is dewatered. At present, the traditional slurry sedimentation concentration mode mainly comprises two modes, namely, a large concentration tank is excavated, the concentration and sedimentation of slurry are realized through the gravity action of slurry particles, but the excavation of a large-area concentration tank has a plurality of defects. For example, the large-scale concentration pool is excavated in a limited way, and the method is not suitable for cities with compact space resources or lakeside zones with shallow water and wide scattering points. In addition, the sludge in river and lake bottom sludge has high organic matter content, and the long residence time of sludge in the concentration pond may produce bad smell to affect the surrounding environment, and the second is to flocculate and precipitate sludge with simple sludge concentrating tank.
In addition, the traditional slurry flocculation concentration mode lacks a corresponding supernatant monitoring system, indexes such as Suspended Solids (SS) in supernatant cannot be monitored timely, the supernatant discharge is caused to often exceed a control standard, and the whole process is low in automation degree. Meanwhile, due to the lack of timely monitoring and effective control measures on the slurry liquid level in the tank, the slurry liquid level in the tank often exceeds a safety warning line and even overflows from the top of the tank body due to overlarge slurry inlet flow or untimely flocculation precipitation, so that potential safety hazards are generated.
In the slurry reduction treatment process, the conditioning efficiency and effect of the slurry concentration conditioning system and the discharge of Suspended Solids (SS) in the supernatant have important influences on the floor area, the treatment process and the treatment cost of the whole slurry treatment process, so how to reduce the floor area of a slurry concentration tank, improve the flocculation effect of slurry, control the discharge of the SS in the supernatant and improve the safety of the concentration conditioning system is always an important point in the field.
Disclosure of Invention
The invention aims to provide a slurry flocculation concentration device, which is used for reducing the excavation of a large-area slurry concentration tank, reducing environmental pollution, improving the efficiency and effect of slurry flocculation precipitation, realizing timely monitoring and effective control on the liquid level and suspended matters (SS) in supernatant in the slurry flocculation precipitation process, improving the technical level and the safety level of the whole process bill and realizing the fine construction of engineering projects.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a slurry flocculation concentration device, comprising:
The slurry flocculation device comprises a slurry feeding pump, a first dosing pump, a stirrer, a first hollow spiral dosing pipe, a slurry outlet pump and a mixing box, wherein the inside of the mixing box is divided into a dosing mixing area and a forced mixing area through a baffle plate, the slurry feeding pump and the slurry outlet pump are respectively fixed at the lower end of the mixing box through flanges, the slurry feeding pump is communicated with the dosing mixing area, the slurry outlet pump is communicated with the forced mixing area, the first hollow spiral dosing pipe is spirally arranged in the dosing mixing area from bottom to top, the surface of the first hollow spiral dosing pipe is uniformly perforated along the pipe body direction, one end of the first hollow spiral dosing pipe is sealed, the other end of the first hollow spiral dosing pipe is connected with the first dosing pump, and the stirrer is arranged at the top of the mixing box and is positioned in the forced mixing area;
and the slurry precipitation device is communicated with the slurry outlet pump and is used for treating the slurry in the forced mixing zone conveyed by the slurry outlet pump.
As a possible embodiment, the width and length of the dosing mixing zone are equal and the width and length of the forced mixing zone are equal.
As a possible embodiment, the width of the dosing mixing zone is 1/2 of the width of the forced mixing zone.
As a possible implementation mode, the slurry precipitation device comprises a precipitation tank, a flow guide pipe, a second dosing pump, a second hollow spiral dosing pipe and a slurry discharge pump, wherein the precipitation tank is communicated with the slurry discharge pump through the flow guide pipe, the second hollow spiral dosing pipe is spirally arranged in the flow guide pipe along the slurry flowing direction, the surface of the second hollow spiral dosing pipe is uniformly perforated along the pipe body direction, the aperture of the second hollow spiral dosing pipe is 0.5-1 time of the diameter of the second hollow spiral dosing pipe, one end of the second hollow spiral dosing pipe is sealed, the other end of the second hollow spiral dosing pipe is connected with the second dosing pump, an overflow port is arranged on the side face of the upper end of the precipitation tank, and the overflow port is 1-2 meters away from the top of the precipitation tank.
As a possible implementation manner, the overflow port is provided with an electric control valve for controlling the on-off of the overflow port. The interior surface of the precipitation tank is painted with antirust paint so as to avoid the influence of metal ions generated by the traditional iron box body due to corrosion and other reasons on the flocculation effect of mud.
As a possible implementation manner, the top of the precipitation tank is provided with an exhaust hole.
As a possible implementation mode, one end of the flow guiding pipe is connected with the pulp outlet pump through a flange, and the other end of the flow guiding pipe penetrates through the tank body from the side surface of the settling tank, which is close to the top, and then extends downwards.
As a possible implementation manner, a slurry outlet is arranged at the bottom of the settling tank, and a slurry discharge pump is arranged at the slurry outlet to discharge settled slurry.
As a possible embodiment, the side wall of the precipitation tank is provided with a transparent viewing window, which is composed of transparent organic glass.
As a possible implementation manner, the system further comprises a control system, wherein the control system comprises a liquid level sensor, a suspended matter (SS) sensor and a controller, and the liquid level sensor is arranged on the precipitation tank to monitor the liquid level in the precipitation tank and transmit data to the controller. The Suspended Solids (SS) sensor is used to measure Suspended Solids (SS) in the supernatant of the settling tank and transmit data to a controller. The controller can receive, store and process data, and can control states of the pulp inlet pump, the first drug adding pump, the stirrer, the second drug adding pump, the pulp outlet pump and the pulp discharging pump according to changes of suspended matter (SS) sensor data and liquid level sensor data in supernatant. If the liquid level in the precipitation tank exceeds the safety warning line, the controller can directly close the pulp inlet pump, the first dosing pump, the stirrer, the pulp outlet pump and the second dosing pump, and meanwhile, the rotating speed of the pulp discharge pump is increased to ensure safety, and when the liquid level in the precipitation tank falls below the safety warning line, the controller can start the pulp inlet pump, the first dosing pump, the stirrer, the pulp outlet pump and the second dosing pump, and simultaneously, the rotating speed of the pulp discharge pump is recovered, and if the value of SS in the suspended matter sensor does not exceed a set value, the electric control valve of the overflow port is always opened, so that the smooth discharge of supernatant is ensured. If the value of SS in the suspended solids sensor exceeds a set value, the controller can close the electric control valve of the overflow port, and simultaneously, the rotational speed of the first dosing pump and the rotational speed of the second dosing pump are increased, so that the adding amount of the medicament are increased, and when Suspended Solids (SS) in supernatant drops below the set value, the rotational speeds of the first dosing pump and the second dosing pump are recovered, and meanwhile, the electric control valve of the overflow port is opened, so that the effect of discharging supernatant is ensured.
As a preferable technical scheme of the invention, the controller is electrically connected with the pulp feeding pump so as to control the on-off of the pulp feeding pump.
The controller is electrically connected with the first dosing pump to control the opening and closing and the rotating speed of the first dosing pump.
The controller is electrically connected with the stirrer to control the start and stop of the stirrer.
The controller is electrically connected with the slurry outlet pump to control the opening and closing of the slurry outlet pump.
The controller is electrically connected with the second dosing pump to control the opening and closing and the rotating speed of the second dosing pump.
The controller is electrically connected with the liquid level sensor to control the liquid level in the sedimentation tank.
The controller is electrically connected with a suspended matter (SS) sensor to control the suspended matter (SS) content in the supernatant in the precipitation tank.
The controller is electrically connected with the electric control valve to control the opening and closing of the electric control valve.
The controller is electrically connected with the slurry pump to control the opening and closing and the rotating speed of the slurry pump.
Compared with the prior art, the invention has the beneficial effects that:
(1) The mud flocculation concentration device has the advantages of uniform medicament addition, good mixing effect and more complete reaction. The inside cavity of first cavity spiral dosing pipe and second cavity spiral dosing pipe, the surface evenly opens to arrange along pipe shaft length direction heliciform, mud treatment medicament is through first cavity spiral dosing pipe and second cavity spiral dosing pipe of first dosing pump and second dosing pump injection, then get into mud through the opening on spiral pipe surface, thereby guarantee the homogeneity that the flocculating agent was added in different directions, the helicitic texture of spiral pipe itself can produce certain disturbance to mud simultaneously, make medicament and mud can intensive mixing, the stirring effect of agitator in the back in addition, thereby further guaranteed the intensive mixing reaction of mud and medicament.
(2) The liquid level sensor monitors the liquid level in the sedimentation tank and transmits information to the controller, so that the controller can control the states of the pulp inlet pump, the first drug adding pump, the stirrer, the second drug adding pump, the pulp outlet pump and the pulp discharging pump according to the liquid level in the sedimentation tank. If the liquid level in the sedimentation tank exceeds the safety warning line, the controller can directly close the slurry inlet pump, the first chemical adding pump, the stirrer, the slurry outlet pump and the second chemical adding pump, and simultaneously increase the rotating speed of the slurry discharging pump so as to prevent excessive slurry in the sedimentation tank from exceeding the safety capacity and simultaneously prevent the slurry in the sedimentation tank from overflowing, thereby ensuring safety.
(3) Compared with the traditional process, the mud flocculation concentration device has the advantages of high flocculation concentration speed and high effluent standard. According to research, the mixed adding effect of a plurality of medicaments is better than that of independently adding one medicament. Therefore, the invention can respectively add the two medicaments through the front and back medicament adding processes, thereby improving the efficiency and effect of flocculating settling of slurry.
(4) Compared with the traditional process, the mud flocculation concentration device has the advantages that the water outlet standard is high, and the water outlet standard can be automatically controlled according to engineering requirements. The Suspended Solids (SS) in the supernatant in the precipitation tank can be monitored through the suspended solids sensor, and information is transmitted to the controller, so that the controller can control the opening and closing of the electric control valve and the rotating speeds of the first dosing pump and the second dosing pump according to the Suspended Solids (SS) content in the supernatant in the precipitation tank.
(5) Compared with the traditional process, the mud flocculation concentration device has small occupied area, and the whole device is convenient to assemble and construct and transfer. The mud flocculation concentration device adopts flange connection as far as possible between different structures and instruments and structures, and has better mud flocculation sedimentation effect and higher efficiency by adding special structures such as the addition of two medicaments, the spiral structure of a hollow spiral pipe, stirring and mixing and the like, and the floor area of the device is reduced by 1/4 compared with the traditional process under the same treatment capacity, so that effective technical support is provided for the development of modularized, miniaturized and intensive mud treatment equipment.
In addition, the feasibility of the invention is verified through field application, and the characteristics of high flocculation concentration speed, good effect, high safety, controllable water outlet standard and convenience in assembly and construction transition are well realized.
Drawings
FIG. 1 is a schematic diagram of the construction of the slurry flocculation concentration device of the present invention.
The device comprises a slurry inlet pump 1, a first chemical feeding pump 2, a first hollow spiral chemical feeding pipe 3, a stirrer 4, a slurry outlet pump 5, a mixing box 6, a chemical feeding mixing area 7, a forced mixing area 8, a forced mixing area 9, a flow guide pipe 10, a second chemical feeding pump 11, a second hollow spiral chemical feeding pipe 12, a settling tank 13, an exhaust hole 14, a liquid level sensor 15, a safety warning line 16, an overflow port 17, an electric control valve 18, a suspended matter (SS) sensor 19, an observation window 20, a slurry discharging pump 21 and a controller.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1, a slurry flocculation concentration device includes a slurry flocculation device, a slurry precipitation device, and a plant control system. The mud flocculation device is connected with the mud sedimentation device through a flow guide pipe by a mud outlet pump.
The mud flocculation device comprises a mud inlet pump 1, a first dosing pump 2, a first hollow spiral dosing pipe 3, a stirrer 4, a mud outlet pump 5 and a mixing box 6. In order to avoid the influence of metal ions generated by the traditional iron box body due to corrosion and the like on the flocculation effect of slurry, the mixing box 6, the first hollow spiral dosing tube 3 and stirring blades of the stirrer 4 are made of PE materials. The mixing box 6 is divided into two parts of a dosing mixing area 7 and a forced mixing area 8 by a baffle, the height of the baffle is lower than the height of the cavity inside the mixing box 6, slurry in the dosing mixing area 7 overflows to the forced mixing area 8 through a gap between the baffle and the top wall of the mixing box, the width and the length of the dosing mixing area 7 are equal so that a first hollow spiral dosing pipe is arranged at the very center of the dosing mixing area 7, the width and the length of the forced mixing area 8 are equal so that a stirrer is arranged at the very center of the forced mixing area 8, so that flocculating agent and slurry are fully mixed, and the width of the dosing mixing area 7 can be 1/2 of the width of the forced mixing area. The pulp inlet pump 1 is connected with the mixing box 6 through a flange. One end of the first hollow spiral dosing tube 3 is sealed, the other end is connected with the first dosing pump 2, in a specific embodiment, a transfer port is arranged on the side wall of the dosing mixing area 7, and the other end of the first hollow spiral dosing tube 3 is connected with the first dosing pump 2 positioned outside the mixing box 6 through the transfer port. The first hollow spiral dosing tube 3 has holes uniformly opened in the spiral direction, and the aperture is 0.5 times of the diameter of the spiral tube. The stirrer 4 is fixedly connected with the top of the mixing box 6 and is driven by electricity. The main function is to mix the flocculating agent and the mud fully by strong stirring. The pulp outlet pump 5 is connected with the mixing box 6 through a flange.
Further, the mud precipitation device comprises a guide pipe 9, a second dosing pump 10, a second hollow spiral dosing pipe 11, a precipitation tank 12, an exhaust hole 13, an overflow port 16, an electric control valve 17, an observation window 19 and a mud discharging pump 20. PE materials are adopted for the diversion pipe 9 and the second hollow spiral dosing pipe 11.
Further, in order to avoid the influence of metal ions generated by the traditional iron box body due to corrosion and the like on the flocculation effect of slurry, the inner surface of the mixed precipitation tank is painted with antirust paint. One end of the guide pipe 9 is connected with the pulp outlet pump 5 through a flange, and the other end of the guide pipe extends downwards by 90 degrees after penetrating through the tank body from the side surface of the settling tank 12 close to the top. The second hollow spiral dosing pipe 11 is fixed inside the honeycomb duct, the lateral wall of honeycomb duct is equipped with the connector, and second hollow spiral dosing pipe 11 one end is sealed, and the other end is connected with the second dosing pump 10 that is located outside the honeycomb duct through the connector. The second hollow spiral dosing pipe is uniformly perforated along the pipe body in the spiral direction, the aperture is 0.5 times of the diameter of the spiral pipe, a slurry outlet is arranged at the bottom of the precipitation tank 12, and the slurry outlet is connected with a slurry discharge pump 20 through a flange. Further, the observation window 19 is arranged on the side surface of the tank body so as to observe the internal condition of the precipitation tank, and is composed of transparent organic glass. The overflow port 16 is connected with the electric control valve 17 through a flange.
Further, the slurry flocculation concentration device also includes a control system including a level sensor 14, a safety guard 15, a Suspended Solids (SS) sensor 18, and a controller 21. As a preferred embodiment of the present invention, the controller 21 is electrically connected to the slurry pump 1 through a first connection line, so as to control the on/off of the slurry pump 1. The controller 21 is electrically connected with the first dosing pump 2 through a second connecting wire so as to control the opening and closing and the rotating speed of the first dosing pump 2. The controller 21 is electrically connected with the stirrer 4 through a third connecting wire so as to control the start and stop and the rotating speed of the stirrer. The controller 21 is electrically connected with the pulp outlet pump 5 through a fourth connecting wire so as to control the opening and closing of the pulp outlet pump. The controller 21 is electrically connected with the second dosing pump 10 through a fifth connecting wire so as to control the opening and closing and the rotating speed of the second dosing pump. The controller 21 is electrically connected with the liquid level sensor 14 through a sixth connecting wire to control the liquid level in the sedimentation tank. The controller 21 is electrically connected to the Suspended Solids (SS) sensor 18 through a seventh connection line to control the Suspended Solids (SS) content of the supernatant fluid in the settling tank. The controller 21 is electrically connected with the electric control valve 16 through an eighth connecting wire to control the opening and closing of the electric control valve. The controller 21 is electrically connected with the slurry pump 20 through a ninth connecting line to control the start and stop and the rotation speed of the slurry pump.
The working principle and the using flow of the invention are as follows:
During operation, the slurry feeding pump 1 sends slurry into the dosing mixing zone 7, and when the slurry passes through the dosing mixing zone 7, the first dosing pump 2 pumps flocculating agent into the first hollow spiral dosing pipe 3, and the medicaments are uniformly injected into the slurry along different directions through openings uniformly distributed on the surface of the first hollow spiral dosing pipe 3, and the slurry can be disturbed due to the spiral structure of the first hollow spiral dosing pipe 3, so that the medicaments and the slurry can be fully mixed. The mud mixed by adding the medicine flows into the forced mixing area 8 through the overflow port, and the forced stirring effect of the stirrer 4 not only ensures that the flocculating agent is mixed with the mud more uniformly, but also prolongs the stay time of the mud, and ensures the full mixing reaction of the flocculating agent and the mud.
The slurry after the mixed reaction is sent into a precipitation tank 12 through a flow guide pipe 9 by a slurry outlet pump 5, in the process, a second dosing pump 10 pumps a sedimentation agent into a second hollow spiral dosing pipe 11, and the medicament is uniformly injected into the slurry from different directions through openings uniformly distributed on the surface of the second hollow spiral dosing pipe 11, and the slurry is disturbed due to the spiral structure of the second hollow spiral dosing pipe 11, so that the sedimentation agent and the slurry can be further mixed, and the sedimentation of the slurry is accelerated. The flocculated and precipitated slurry particles are collected at the bottom of the cone of the settling tank and discharged by a slurry discharge pump 20, and the supernatant is discharged along with an overflow port 16, thereby realizing the flocculated and precipitated slurry.
The Suspended Solids (SS) in the supernatant in the settling tank 12 can be monitored by the Suspended Solids (SS) sensor 18, and information can be transmitted to the controller, so that the controller can control the opening and closing of the electrically controlled valve according to the Suspended Solids (SS) content in the supernatant in the settling tank 12. When the content of suspended matters (SS) in the supernatant is monitored to be smaller than the preset value of suspended matters of the controller, the electric control valve is controlled to be opened, the electric control valve is opened when the content of the suspended matters (SS) in the supernatant is monitored to be smaller than or equal to the preset value of suspended matters of the controller, the electric control valve is closed when the content of the suspended matters (SS) in the supernatant is monitored to be larger than or equal to the preset value of suspended matters of the controller, the medicine injection quantity is increased, the flocculation precipitation effect is improved, if the content of the suspended matters (SS) in the supernatant is monitored to be larger than or equal to the preset value of suspended matters of the controller, the electric control valve is closed, and the rotation speed of the first medicine adding pump 2 and the second medicine adding pump 10 is increased to increase the medicine injection quantity, the flocculation precipitation effect is improved until the content of the suspended matters (SS) in the supernatant is reduced to be smaller than or equal to 20mg/L, the electric control valve of the overflow port is opened, and the rotation speed of the first medicine adding pump 2 and the second medicine adding pump 10 is restored, so that the effect of the supernatant discharge is ensured.
The liquid level in the sedimentation tank can be monitored through the liquid level sensor 14, liquid level information is transmitted to the controller, if the liquid level exceeds the safety guard line 15, the controller 21 can directly close the pulp feeding pump 1, the first drug feeding pump 2, the stirrer 4, the pulp discharging pump 5 and the second drug feeding pump 10, meanwhile, the rotating speed of the pulp discharging pump 20 is increased until the liquid level in the sedimentation tank falls below the safety guard line 15, then the controller 21 can start the pulp feeding pump 1, the first drug feeding pump 2, the stirrer 4, the pulp discharging pump 5 and the second drug feeding pump 10, and simultaneously recover the rotating speed of the pulp discharging pump 20, so that the slurry in the sedimentation tank is always below the safety guard line 15, and the safety is ensured.
The foregoing description of the embodiments is provided to facilitate the understanding and appreciation of the invention by those skilled in the art. It will be apparent to those skilled in the art that various modifications can be made to these teachings and that the general principles described herein may be applied to other embodiments without the need for inventive faculty. Therefore, the invention is not limited to the above description and the description of the embodiments, and those skilled in the art, based on the disclosure of the invention, should make improvements and modifications without departing from the scope of the invention.

Claims (6)

1.一种泥浆絮凝浓缩装置，其特征在于，包括：1. A mud flocculation and thickening device, characterized in that it comprises: 泥浆絮凝装置，包括进浆泵、第一加药泵、搅拌器、第一中空螺旋加药管、出浆泵和混合箱，所述混合箱内部通过挡板分割成加药混合区和强制混合区，所述进浆泵及所述出浆泵分别通过法兰固定在所述混合箱的下端，且所述进浆泵与所述加药混合区连通、所述出浆泵与所述强制混合区连通，所述第一中空螺旋加药管自下而上螺旋设置于所述加药混合区内，所述第一中空螺旋加药管表面沿管身方向均匀开孔，所述第一中空螺旋加药管一端密封，另一端与所述第一加药泵连接，所述搅拌器设置于所述混合箱的顶部且位于所述强制混合区；A mud flocculation device includes a mud inlet pump, a first dosing pump, a stirrer, a first hollow spiral dosing pipe, a mud outlet pump, and a mixing tank. The mixing tank is divided into a dosing mixing zone and a forced mixing zone by a baffle. The mud inlet pump and the mud outlet pump are respectively fixed to the lower end of the mixing tank by flanges. The mud inlet pump is connected to the dosing mixing zone, and the mud outlet pump is connected to the forced mixing zone. The first hollow spiral dosing pipe is spirally arranged from bottom to top in the dosing mixing zone. The surface of the first hollow spiral dosing pipe has evenly distributed holes along the pipe body direction. One end of the first hollow spiral dosing pipe is sealed, and the other end is connected to the first dosing pump. The stirrer is located at the top of the mixing tank and in the forced mixing zone. 泥浆沉淀装置，与所述出浆泵连通，用于处理通过出浆泵输送的强制混合区的泥浆；所述泥浆沉淀装置包括沉淀罐、导流管、第二加药泵、第二中空螺旋加药管和排浆泵，所述沉淀罐与所述出浆泵通过导流管连通，所述第二中空螺旋加药管沿浆体流动方向螺旋设置在所述导流管内，所述第二中空螺旋加药管表面沿管身方向均匀开孔，所述第二中空螺旋加药管一端密封，另一端与所述第二加药泵连接，所述沉淀罐的上端侧面设有溢流口，所述溢流口安装有电控阀以控制溢流口的通断；A mud sedimentation device, connected to the discharge pump, is used to treat the mud from the forced mixing zone transported by the discharge pump. The mud sedimentation device includes a sedimentation tank, a guide pipe, a second dosing pump, a second hollow spiral dosing pipe, and a discharge pump. The sedimentation tank is connected to the discharge pump through the guide pipe. The second hollow spiral dosing pipe is spirally arranged inside the guide pipe along the direction of slurry flow. The surface of the second hollow spiral dosing pipe has uniformly opened holes along the pipe body direction. One end of the second hollow spiral dosing pipe is sealed, and the other end is connected to the second dosing pump. An overflow port is provided on the upper side of the sedimentation tank. An electric control valve is installed on the overflow port to control the opening and closing of the overflow port. 所述加药混合区的宽度和长度相等，所述强制混合区的宽度和长度相等。The width and length of the drug mixing zone are equal, and the width and length of the forced mixing zone are also equal. 2.根据权利要求1所述泥浆絮凝浓缩装置，其特征在于，所述加药混合区的宽度是所述强制混合区宽度的1/2。2. The mud flocculation and thickening device according to claim 1, wherein the width of the chemical mixing zone is 1/2 of the width of the forced mixing zone. 3.根据权利要求1所述泥浆絮凝浓缩装置，其特征在于，所述沉淀罐的顶部设有排气孔。3. The mud flocculation and concentration device according to claim 1, wherein the top of the sedimentation tank is provided with an exhaust port. 4.根据权利要求1所述泥浆絮凝浓缩装置，其特征在于，所述沉淀罐的底部设有出浆口，所述出浆口安装有排浆泵以排出沉淀后的泥浆。4. The mud flocculation and thickening device according to claim 1, characterized in that the bottom of the sedimentation tank is provided with a slurry outlet, and a slurry discharge pump is installed at the slurry outlet to discharge the settled mud. 5.根据权利要求1所述泥浆絮凝浓缩装置，其特征在于，所述沉淀罐的侧壁设有透明的观察窗。5. The mud flocculation and concentration device according to claim 1, characterized in that the side wall of the sedimentation tank is provided with a transparent observation window. 6.根据权利要求1所述泥浆絮凝浓缩装置，其特征在于，还包括控制系统，所述控制系统包括液位传感器、悬浮物传感器和控制器，所述液位传感器设置于所述沉淀罐上以对沉淀罐内的液面进行监测，并将数据传输到控制器，所述悬浮物传感器用于测量沉淀罐上清液中的悬浮物，并将数据传输到控制器，所述控制器用于数据的接收、存储和处理，并根据上清液中悬浮物传感器数据和液位传感器数据的变化，控制进浆泵、第一加药泵、搅拌器、第二加药泵、出浆泵和排浆泵的状态。6. The mud flocculation and thickening device according to claim 1, characterized in that it further includes a control system, the control system including a liquid level sensor, a suspended solids sensor and a controller, the liquid level sensor being disposed on the sedimentation tank to monitor the liquid level in the sedimentation tank and transmit the data to the controller, the suspended solids sensor being used to measure the suspended solids in the supernatant of the sedimentation tank and transmit the data to the controller, the controller being used to receive, store and process the data, and control the status of the feed pump, the first dosing pump, the agitator, the second dosing pump, the discharge pump and the slurry discharge pump according to the changes in the suspended solids sensor data and the liquid level sensor data in the supernatant.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776472A (en) * 2016-04-07 2016-07-20 长沙威保特环保科技股份有限公司 Chemical feeding control device and method for sewage treatment production line
CN208762247U (en) * 2018-07-25 2019-04-19 重庆沐联环境工程有限公司 Chemical feed pipe
CN111453961A (en) * 2020-05-29 2020-07-28 石家庄航全矿产品有限公司 Integrated process for continuously dredging sediment in situ
CN216837559U (en) * 2022-01-26 2022-06-28 华夏碧水(宁夏)环保科技有限公司 High-efficient purifier of sewage
CN217516833U (en) * 2022-07-08 2022-09-30 中交上海航道勘察设计研究院有限公司 Slurry flocculation concentration device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553082B1 (en) * 1983-10-07 1987-08-28 Degremont APPARATUS FOR TREATING WATER BY PRECIPITATION, SEPARATION, THICKENING AND RECIRCULATION OF FORMED SLUDGE
CN203269714U (en) * 2013-03-25 2013-11-06 四川环能德美科技股份有限公司 Magnetic separation device applicable to underground mine water treatment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105776472A (en) * 2016-04-07 2016-07-20 长沙威保特环保科技股份有限公司 Chemical feeding control device and method for sewage treatment production line
CN208762247U (en) * 2018-07-25 2019-04-19 重庆沐联环境工程有限公司 Chemical feed pipe
CN111453961A (en) * 2020-05-29 2020-07-28 石家庄航全矿产品有限公司 Integrated process for continuously dredging sediment in situ
CN216837559U (en) * 2022-01-26 2022-06-28 华夏碧水(宁夏)环保科技有限公司 High-efficient purifier of sewage
CN217516833U (en) * 2022-07-08 2022-09-30 中交上海航道勘察设计研究院有限公司 Slurry flocculation concentration device

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