CN108751669B - Mud dewatering box system capable of forming negative pressure in real time - Google Patents

Mud dewatering box system capable of forming negative pressure in real time Download PDF

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Publication number
CN108751669B
CN108751669B CN201810888308.2A CN201810888308A CN108751669B CN 108751669 B CN108751669 B CN 108751669B CN 201810888308 A CN201810888308 A CN 201810888308A CN 108751669 B CN108751669 B CN 108751669B
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China
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water
dewatering box
liquid level
level difference
box body
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CN201810888308.2A
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CN108751669A (en
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王浩
马国田
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Qingdao Haorun Recycling Water Technology Co ltd
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Qingdao Haorun Recycling Water Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The utility model provides a mud dewatering box system that can form negative pressure immediately, including the dewatering box body, dewatering box body rotation support axle, solid hydraulic cylinder, hydraulic pressure slope lift support column, mud filter equipment, the sealing strip, vertical and horizontal reinforcing riser, the gas hydroecium, left baffle, negative pressure exhaust vacuum channel, hydraulic pressure baffle that opens and shuts, vacuum pump pipe way, the vacuum pump, with the inside filtered water intercommunication of dewatering box body and install the liquid level difference water tank on the dewatering box body bottom surface, the liquid level difference drain pipe, the float switch who links to each other with liquid level difference drain pipe outer end, install the time delay water level inductor on dewatering box body bottom gas hydroecium side. The slurry is dehydrated in the dehydration tank body in real time, the solid waste is transported after dehydration without carrying sewage, the solid waste is poured at fixed points, the environment is protected, the dehydration speed is high, the solid phase water content is low, and the service life of the dehydration tank body is long. The method can be widely applied to the slurry dehydration treatment process, in particular to the vehicle-mounted slurry dehydration treatment process.

Description

Mud dewatering box system capable of forming negative pressure in real time
Technical Field
The invention relates to a mud dewatering box system capable of forming negative pressure in real time, which can be widely applied to the mud dewatering treatment process, in particular to the vehicle-mounted mud dewatering treatment process.
Background
At present, the slurry dehydration method is to pump slurry or ore pulp to open ground for accumulation, then naturally precipitate, slowly exude water, and then load and transport solid wastes. The defects are insufficient dehydration, incapability of timely treatment, large occupied area, high labor intensity and easy dripping and leakage during transportation, thereby causing environmental pollution. The other method is that the pressure of the water in the slurry is discharged by utilizing a filter press, and the method has low efficiency, large investment and high energy consumption, is only suitable for small-sized sludge dehydration, and cannot meet the requirements of large dredging projects of river channels, ports and lakes.
Disclosure of Invention
The invention aims to provide a mud dewatering box system which is capable of immediately dewatering mud in a dewatering box body, does not carry sewage to move solid waste, conveys the solid waste after dewatering, pour the solid waste at fixed points, is environment-friendly, has high dewatering speed, low solid phase water content and long service life and can immediately form negative pressure.
In order to achieve the purpose, the mud dewatering box system capable of forming negative pressure instantly comprises a dewatering box body, a dewatering box body rotary support shaft arranged at the right lower end of the bottom of the dewatering box body, a hydraulic cylinder fixedly arranged on a dewatering treatment site and used for obliquely lifting the dewatering box body, a hydraulic obliquely lifting support column arranged between the bottom of the dewatering box body and the hydraulic cylinder, mud filtering devices positioned in the dewatering box body and arranged on two side surfaces of the dewatering box body, sealing strips arranged at the positions, around the mud filtering devices, of the two side surfaces of the dewatering box body, longitudinal and transverse reinforcing vertical plates arranged on the lower bottom surface of the mud filtering devices and arranged on the side surfaces of the dewatering box body, a gas chamber arranged between the inner bottom surface of the dewatering box body and the lower bottom surface of the mud filtering devices, a left baffle arranged on the left side surface of the dewatering box body, a negative pressure exhaust vacuum channel arranged on the left baffle plate and communicated with the gas chamber, a hydraulic opening and closing baffle arranged on the right side surface of the dewatering box body, vacuum pump pipes connected with the negative pressure exhaust vacuum pump channels, a vacuum pump connected with the vacuum pump, a water inlet bottom arranged on the dewatering box body and a water level difference sensor arranged on the water outlet pipe, a water level difference sensor arranged on the water outlet of the water outlet box, and a water level difference sensor arranged on the water outlet of the water outlet.
The invention discloses a mud dewatering box system capable of forming negative pressure in real time, which comprises a porous bearing support plate arranged on the upper part of a longitudinal and transverse reinforced vertical plate, a lower permeable porous protection plate arranged on the upper part of the porous bearing support plate, a filter screen filter arranged on the upper part of the lower porous protection plate, and an upper permeable porous protection plate arranged on the upper part of the filter screen filter.
The invention can form a mud dewatering box system with negative pressure in real time, and the number of the liquid level difference water boxes is 1.
The invention can form a mud dewatering box system with negative pressure in real time, and the number of the liquid level difference water boxes is 2 or more than 2.
The hydraulic oil cylinder can be obliquely arranged on a transport vehicle moving on the dehydration site or obliquely fixed on the dehydration site.
According to the mud dewatering box system capable of forming negative pressure in real time, when the water level of the liquid level difference water box is higher than the water level difference water drainage pipe orifice, the float switch is automatically opened, and water flows out from the liquid level difference water drainage pipe; when the water level of the liquid level difference water tank is lower than the water level difference water draining pipe orifice, the float switch is automatically closed.
The invention provides a mud dewatering box system capable of forming negative pressure in real time, and the float switch comprises a float seat and a hollow plastic float ball arranged on the float seat.
The invention relates to a mud dewatering box system capable of forming negative pressure in real time, which has the working principle that:
(1) Forming a negative pressure sealing principle: when the dewatering box body is not loaded with the slurry mixture, even if the vacuum pump is started, the air water chamber cannot form negative pressure, and air can enter the air water chamber from the slurry filtering device, so that the air water chamber cannot generate negative pressure. When the slurry is filled in the upper surface of the slurry filtering device and continuously pumped in, water enters the gas water chamber through the slurry filtering device under the action of gravity and reaches the liquid level difference water tank at the bottom. Filling the slurry at the upper part of the slurry filtering device, and playing a role in sealing the upper part of the dewatering box body by air so as to form a sealing layer at the upper part of the air water chamber; when the filtered water reaches the liquid level difference water tank at the bottom of the air water chamber, if the water level of the liquid level difference water tank is higher than the water level of the outlet of the liquid level difference water drain pipe, the float switch is automatically opened, water overflows from the outlet of the liquid level difference water drain pipe under the action of gravity, water is always stored below the upper water level of the liquid level difference water tank, air is isolated from entering the liquid level difference water tank, a water outlet is formed to be sealed, and at the moment, the water of the liquid level difference water tank plays an isolated sealing role of external air and air of the air water chamber.
(2) Dehydration: the invention includes three workspace portions: a dewatering box body for containing slurry, a gas water chamber below the dewatering box body, and a liquid level difference water tank below the gas water chamber. Under the action of gravity, the slurry pumped into the dewatering box body, water in the slurry enters the air water chamber through the filter screen layer and then enters a liquid level difference water tank below the air water chamber; along with the gradual increase of water entering the liquid level difference water tank, when the water level is higher than the liquid level difference water draining pipe orifice, water flows out from the liquid level difference water draining pipe, and the water in the liquid level difference water tank isolates air from the air water chamber in the tank body. At the moment, the vacuum pump is started to enable the air in the air water chamber to be pumped by the vacuum pump, and the air water chamber forms negative pressure; under the action of negative pressure, water in the mud of the dewatering box body rapidly enters the air water chamber. When the water level sensing point of the delay water level sensor is reached, the delay water level sensor sends a stop signal to the vacuum pump, the vacuum pump stops working, and water entering the air water chamber and the liquid level difference water tank is rapidly discharged through the liquid level difference drain pipe under the action of gravity. According to the water level drainage speed of the liquid level difference water tank, the delay water level sensor signals the vacuum pump, and the vacuum pump starts working again, so that the reciprocating operation is performed until the slurry dewatering process is completed.
The invention can form the mud dewatering box system of the negative pressure in time, the higher the negative pressure value of the air is, the faster the water flow speed in the mud is. After water in the slurry is sucked into the air water chamber, gaps are formed among solid particles in the slurry, air enters the air water chamber along the gaps under the action of negative pressure, so that the negative pressure of the air water chamber is gradually reduced, and when the negative pressure of the air water chamber is gradually reduced to a set value, the vacuum pump stops working.
The mud dewatering box system capable of forming negative pressure in real time adopts the composite structure of the porous bearing supporting plate, the porous protection plate and the filter screen filter, improves the dewatering performance, is beneficial to forcibly dewatering mud, and improves the production efficiency.
The invention can form the mud dewatering box system of the negative pressure immediately, the time delay water level sensor controls the vacuum pump, ensure that the vacuum pump only enters air without water. When the water level of the liquid level difference water tank rises above the outlet water level, the liquid level difference water tank flows out of the float switch, and if the water level continues to rise, the water level sensor sends a control signal to turn off the vacuum pump. When in operation, the dehydration amount gradually decreases and stops flowing out of the float switch, which indicates that the dehydration operation is completed.
When the vacuum pump starts to work, water in the dewatering tank body enters the air water chamber under the action of gravity and negative pressure, sediment is blocked at the upper part by the mud filtering device, and when the negative pressure of the air water chamber is less than 0.001Mpa, the vacuum pump stops working, so that the mud separation process is completed.
The invention can form the mud dewatering box system of the negative pressure immediately, when the water content is above 85%, the mud is in the flow state generally; 65 to 85 percent of the plastic material is in a plastic state; below 60% it is solid.
The invention can form a mud dewatering box system with negative pressure in real time, and after the mud is loaded, the mud is rapidly dewatered by the negative pressure of the vacuum pump, namely the mud is immediately dewatered in the dewatering box body. Under the action of negative pressure, water in the slurry continuously enters a liquid level difference water tank at the bottom of the gas water chamber, and as the slurry filtering device blocks sediment particles in a dewatering tank at the upper part of the slurry filtering device, the water entering the gas water chamber overflows under the action of gravity, so that the slurry separation process is completed.
The invention can form the mud dewatering box system of the negative pressure immediately, adopt the vacuum suction to dewater, the sediment water content in the dewatering box is less than 50%, the dewatering speed is fast, the water content of the solid phase is low. The slurry becomes solid, loses fluidity, forms dry sludge discharge, and transports the solid waste after dehydration, does not carry sewage to move the solid waste, and pours the solid waste at fixed points. Can be widely applied to the dehydration treatment process of sewage, tap water, river channels, lakes, ports, beaches, agricultural environments, urban environments, vehicle-mounted mud and mud of other industrial and mining enterprises.
The invention can form the mud dewatering box system of the negative pressure immediately, adopt the structure of the tipping type dewatering box, because of setting up hydraulic cylinder and hydraulic inclined lifting support column structure, the dewatering box has fixed point to pour the function of the solid waste, can be installed on the moving transport vehicle or on the fixed horizontal plane.
The invention can form a mud dewatering box system with negative pressure in real time, and the dewatered mud is changed from a fluid state to a solid state and loses fluidity. The dewatering box body is dumped by opening the hydraulic opening and closing baffle plate at a designated place in a vehicle-mounted transportation manner, or the dewatering box body is lifted in situ by hydraulic pressure, the hydraulic opening and closing baffle plate of the dewatering box body is opened, and the dewatering box body is dumped to a low-lying place which is prepared in advance and is loaded and transported.
The invention can form the mud dewatering box system of the negative pressure immediately, in the dewatering box body, from top to bottom, the medium layering is: an upper turbid water layer, a lower slurry layer and a filtered water layer in the gas water chamber.
The invention can form a negative pressure mud dewatering box system in real time, and the liquid level difference water boxes can be arranged in 1 or more according to the water content of mud.
The mud dewatering box system capable of forming negative pressure in real time can not produce secondary pollution in the transportation process after mud separation, and solid waste can be comprehensively utilized, so that the system is environment-friendly.
The invention can form the mud dewatering box system of the negative pressure immediately, adopt the reinforcing vertical plate structure, is used for resisting the impact force of the mud, has lengthened the life of the dewatering box body.
In summary, the mud dewatering box system capable of forming negative pressure in real time can dewater mud in the dewatering box body in real time, does not carry sewage to move solid waste, conveys the solid waste after dewatering, pour the solid waste at fixed points, is environment-friendly, and has high dewatering speed, low solid phase water content and long service life.
Drawings
The invention will be further described with reference to the accompanying drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged partial schematic view of FIG. 1;
Fig. 4 is a schematic view of the dewatering box of fig. 1 when lifted.
Detailed Description
In fig. 1 to 4, the mud dewatering box system capable of forming negative pressure instantly comprises a dewatering box body 1, a dewatering box body rotary support shaft 2 arranged at the right lower end of the bottom of the dewatering box body, a hydraulic cylinder 3 fixedly arranged on a dewatering treatment site and used for obliquely lifting the dewatering box body, a hydraulic obliquely lifting support column 4 arranged between the bottom of the dewatering box body and the hydraulic cylinder, mud filtering devices 5 arranged in the dewatering box body and arranged on two sides of the dewatering box body, sealing strips 6 arranged at the connection positions of the periphery of the mud filtering devices and the sides of the dewatering box body, longitudinal and transverse reinforcing vertical plates 7 arranged on the lower bottom surface of the mud filtering devices, a gas water chamber 8 arranged between the inner bottom surface of the dewatering box body and the lower bottom surface of the mud filtering devices, a left baffle plate 9 arranged on the left baffle plate and communicated with the gas water chamber, a negative pressure exhaust vacuum channel 10 arranged on the left baffle plate, a hydraulic opening and closing baffle plate 11 arranged on the right side of the dewatering box body, a vacuum pump pipeline 12 connected with the negative pressure exhaust vacuum channel and arranged on the dewatering box body, a water level difference sensor arranged on the bottom surface of the dewatering box body and a water level sensor 16 connected with the water level difference sensor arranged on the bottom surface of the dewatering box body, and the water level sensor 16 arranged on the water outlet of the dewatering box body.
The invention provides a mud dewatering box system capable of forming negative pressure in real time, wherein a mud filtering device 5 comprises a porous bearing supporting plate 5-1 arranged on the upper part of a longitudinal and transverse reinforcing vertical plate 7, a lower permeable porous protection plate 5-2 arranged on the upper part of the porous bearing supporting plate, a filter screen filter 5-3 arranged on the upper part of the lower porous protection plate, and an upper permeable porous protection plate 5-4 arranged on the upper part of the filter screen filter.
The invention can form a mud dewatering box system with negative pressure in real time, and the number of the liquid level difference water boxes is 1.
The invention can form a mud dewatering box system with negative pressure in real time, and the number of the liquid level difference water boxes is 2 or more than 2.
The hydraulic oil cylinder can be obliquely arranged on a transport vehicle moving on the dehydration site or obliquely fixed on the dehydration site.
According to the mud dewatering box system capable of forming negative pressure in real time, the float switch 16 is automatically opened when the water level of the liquid level difference water box is higher than the water level difference water drain pipe orifice, and water flows out from the liquid level difference water drain pipe; when the water level of the liquid level difference water tank is lower than the water level difference water draining pipe orifice, the float switch is automatically closed.
The invention provides a mud dewatering box system capable of forming negative pressure in real time, and the float switch comprises a float seat 16-1 and a hollow plastic float ball 16-2 arranged on the float seat.
In fig. 1, a turbid water layer a and a slurry layer b are shown.

Claims (5)

1. The utility model provides a mud dewatering box system capable of forming negative pressure immediately, which is characterized in that the system comprises a dewatering box body (1), a dewatering box body rotary support shaft (2) arranged at the right lower end of the bottom of the dewatering box body (1), a hydraulic cylinder (3) fixedly arranged on a dewatering treatment site and used for obliquely lifting the dewatering box body (1), a hydraulic oblique lifting support column (4) arranged between the bottom of the dewatering box body (1) and the hydraulic cylinder (3), a mud filtering device (5) arranged in the dewatering box body (1) and arranged on two side surfaces of the dewatering box body (1), sealing strips (6) arranged at the connection position of the periphery of the mud filtering device (5) and the side surfaces of the dewatering box body (1), a longitudinal reinforcing vertical plate (7) arranged on the lower bottom surface of the mud filtering device (5) and a transverse reinforcing vertical plate (7) arranged on the side surfaces of the dewatering box body (1), a left baffle (9) arranged on the left side surface of the dewatering box body (1), a vacuum pump (10) arranged on the left baffle (9) and communicated with the negative pressure water chamber (8) and connected with the vacuum pump (1) on the vacuum pump (11) arranged on the vacuum pump (1), a vacuum pump (13) connected with the vacuum pump pipeline (12), a liquid level difference water tank (14) communicated with filtered water in the dewatering tank body (1) and arranged on the bottom surface of the dewatering tank body (1), a liquid level difference water discharge pipe (15) arranged on the liquid level difference water tank (14), a floating ball switch (16) connected with the outer end of the liquid level difference water discharge pipe (15), and a time delay water level sensor (17) arranged on the side surface of a bottom air water chamber (8) of the dewatering tank body (1);
The mud filtering device (5) comprises a porous bearing supporting plate (5-1) arranged on the upper part of a longitudinal and transverse reinforcing vertical plate (7), a lower permeable porous protection plate (5-2) arranged on the upper part of the porous bearing supporting plate (5-1), a filter screen filter (5-3) arranged on the upper part of the lower porous protection plate (5-2) and an upper permeable porous protection plate (5-4) arranged on the upper part of the filter screen filter (5-3);
The float switch (16) is automatically opened when the water level of the liquid level difference water tank (14) is higher than the opening of the liquid level difference water drain pipe (15), and water flows out of the liquid level difference water drain pipe (15); when the water level of the liquid level difference water tank (14) is lower than the opening of the liquid level difference water drain pipe (15), the float switch (16) is automatically closed;
when the water entering the liquid level difference water tank (14) is gradually increased until the water level is higher than the opening of the liquid level difference water drain pipe (15), the water flows out of the liquid level difference water drain pipe (15), and the water in the liquid level difference water tank (14) isolates air from the air water chamber (8);
After the vacuum pump (13) is started, air in the air water chamber (8) is pumped away by the vacuum pump (13), the air water chamber (8) forms negative pressure, water in slurry in the dewatering box body (1) enters the air water chamber (8) under the action of the negative pressure, when the water level reaches a water level sensing point of the time-delay water level sensor (17), the time-delay water level sensor (17) sends a stop signal to the vacuum pump (13), and the vacuum pump (13) stops working;
The water entering the air water chamber (8) and the liquid level difference water tank (14) is discharged through the liquid level difference water discharge pipe (15) under the action of gravity, and when the water level sensing point of the time delay water level sensor (17) senses that the water is not sensed, the signal is sent to the vacuum pump (13), and the vacuum pump (13) starts to work again.
2. The mud dewatering box system capable of forming negative pressure immediately according to claim 1, wherein the number of the liquid level difference water boxes (14) is 1.
3. The mud dewatering box system capable of forming negative pressure in real time according to claim 1, wherein the number of the liquid level difference water boxes (14) is 2 or more.
4. A mud dewatering box system capable of forming negative pressure immediately according to claim 1, characterized in that the hydraulic cylinder (3) is obliquely arranged on a transport vehicle moving at the dewatering site or is obliquely fixed at the dewatering site.
5. The mud dewatering box system capable of forming negative pressure immediately according to claim 1, wherein the float switch (16) comprises a float seat (16-1) and a hollow plastic float ball (16-2) mounted on the float seat (16-1).
CN201810888308.2A 2018-08-07 2018-08-07 Mud dewatering box system capable of forming negative pressure in real time Active CN108751669B (en)

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Application Number Priority Date Filing Date Title
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CN108751669B true CN108751669B (en) 2024-06-14

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101813489B1 (en) * 2016-08-18 2018-01-30 이한구 Movable Slurry Dehydrator
CN108101341A (en) * 2018-01-12 2018-06-01 武汉大学 High speed dewatering of slurries device
CN208617679U (en) * 2018-08-07 2019-03-19 青岛浩润资源化水务科技有限公司 The slurry dewatering case apparatus of negative pressure can be formed immediately

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005103372A (en) * 2003-09-29 2005-04-21 Penta Ocean Constr Co Ltd Dehydration treatment apparatus and dehydration treatment method
JP5717061B2 (en) * 2010-10-29 2015-05-13 一般社団法人グリーンディール推進協会 Vacuum suction processing method and vacuum suction processing system
KR101299642B1 (en) * 2013-07-29 2013-08-23 두제산업개발(주) Automobile exhaust and excess energy of organic and inorganic sludge using a mobile processing unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101813489B1 (en) * 2016-08-18 2018-01-30 이한구 Movable Slurry Dehydrator
CN108101341A (en) * 2018-01-12 2018-06-01 武汉大学 High speed dewatering of slurries device
CN208617679U (en) * 2018-08-07 2019-03-19 青岛浩润资源化水务科技有限公司 The slurry dewatering case apparatus of negative pressure can be formed immediately

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