CN109987805B - Channel dredging mud solidification equipment - Google Patents
Channel dredging mud solidification equipment Download PDFInfo
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- CN109987805B CN109987805B CN201910022045.1A CN201910022045A CN109987805B CN 109987805 B CN109987805 B CN 109987805B CN 201910022045 A CN201910022045 A CN 201910022045A CN 109987805 B CN109987805 B CN 109987805B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a channel dredging slurry solidification device, which belongs to the technical field of slurry solidification, and comprises a solidification tank, wherein the side wall of the front part of the solidification tank is provided with a feeding pipe, a stirring mechanism and a drainage mechanism are sequentially arranged in the solidification tank along the feeding direction, the drainage mechanisms are arranged in the solidification tank in an array manner, the stirring mechanism comprises at least one stirring shaft which is vertical to the feeding direction and is horizontally arranged, the stirring shaft is driven to rotate by a motor driving chain gear set, annular grooves are formed in the stirring shaft, stirring components are sleeved on the annular grooves, and the stirring components comprise lantern rings matched with the annular grooves and arc-shaped triangular plow-shaped strips. The invention can realize automatic operation, and has high solidification efficiency and solidification quality of the dredged mud, low operation cost and better water quality of the removed water body.
Description
Technical Field
The invention belongs to the technical field of slurry solidification, and particularly relates to a channel dredging slurry solidification device.
Background
With the rapid development of coastal economy and marine transportation in China, the construction and maintenance projects of ports, channels, oceans and seashore processes are rapidly increased, and the quantity of dredged mud dumped into the oceans is increased. As the dumping of the dredged mud seriously affects the effective utilization of marine resources and causes irreparable damage to the marine environment, the contradiction between the dredged mud dumping and other marine activities and marine environment protection is more and more profound, and becomes a difficult problem for marine administrative management. The best way to reduce the ocean dumping of dredged mud is to convert the dredged mud into raw materials for filling and construction work for reuse. Therefore, there is a need to develop new methods or devices that do not pollute the marine environment, destroy marine resources, and are economically feasible for large-scale utilization.
Disclosure of Invention
The invention aims to provide the solidification equipment for the channel dredging mud, which can reduce the viscosity of mud particles, has high solidification efficiency and solidification quality of the dredging mud, low operation cost and better water quality of removed water body.
The technical scheme adopted by the invention for realizing the purpose is as follows: the channel dredging mud solidifying equipment comprises
A curing tank, wherein the side wall of the front part of the curing tank is provided with a feeding pipe, the curing tank is sequentially provided with a stirring mechanism and a drainage mechanism along the feeding direction, the drainage mechanisms are arranged in the curing tank in an array manner,
the stirring mechanism comprises at least one stirring shaft which is vertical to the feeding direction and horizontally arranged, the stirring shaft is driven to rotate by a motor-driven chain gear set, annular grooves are formed in the stirring shaft, stirring components are sleeved on the annular grooves, and the stirring components comprise lantern rings matched with the annular grooves and arc-shaped triangular plow-shaped strips.
The invention discharges the water in the dredged mud to carry out pretreatment work on the dredged mud, the dredged mud is suitable for the dredged mud backfill engineering construction or building materials by improving the property of the dredged mud, the dredged mud is stirred by the stirring mechanism in the curing tank to be uniformly distributed, the full contact probability between the dredged mud and the drainage mechanism is increased to improve the dehydration efficiency, the stirring mechanism is utilized to relieve the flow velocity of the dredged mud in the curing tank, the plow-shaped bars of the stirring mechanism play a role in crushing and cutting the dredged mud flowing from the front side and guide the dredged mud to flow towards the side to extrude the dredged mud in the middle, the energy exchange among the particles, bubbles and dropping liquid in the dredged mud is continuously carried out to reduce the particle size of the mud, the viscosity of the mud particles is reduced, the improvement of the dehydration efficiency of the dewatered dredged mud and the improvement of the water quality of the removed water are realized, and the finally obtained water, the curing quality is good, and the curing agent is suitable for backfill engineering construction or building construction.
Furthermore, a transparent glass plate is covered on the top of the curing pool at the rear part of the curing pool and is used for concentrating solar rays to act on dredged mud, so that a drying chamber is formed in the curing pool below the transparent glass plate, and a drying effect is formed on the dredged mud.
Furthermore, the drainage mechanism comprises drain bar and efflux pipe, and the efflux pipe is parallel and the equipartition in solidification pond bottom of the pool with the (mixing) shaft, and the drain bar cooperation is connected in efflux pipe top. The end part of the drainage plate is higher than the surface of the curing pool. The drainage plate is used for sucking water in the dredged mud into the water tank and then discharging the water into the jet pipe to be discharged out of the solidification pond, the effect of reducing the water content of the dredged mud in the solidification pond is achieved, the height of the top of the drainage plate is set to be higher than the height of the surface of the solidification pond, the contact area between the dredged mud and the drainage plate is increased, and the effect of delaying the flow speed of the dredged mud in the solidification pond is achieved.
Furthermore, the drain board is connected with the jet pipe through the water tank, the upper part of the water tank is obliquely provided with a drain pipe connected with the water outlet end of the drain board, and the bottom of the water tank is provided with a tapered water outlet matched and connected with the jet pipe. The water outlet is communicated with the straight section of the jet pipe. The water tank is connected with the bottom of the drainage plate, the drainage pipe is arranged at the joint of the water tank and the bottom of the drainage plate, the water body collected by the drainage plate enters the water tank along the inside of the water tank to form spiral jet flow, the spiral jet flow potential energy of the water tank is further increased through the conical water outlet, the water body flow velocity of the straight section is synchronously changed, turbulent flow is realized in the straight section and the jet flow section, particles in the water body are made to agglomerate in the turbulent flow, and the water body discharged conveniently is subjected to subsequent filtration and the water quality of.
Furthermore, the jet pipe consists of an inlet section, a straight section and an outlet section, wherein the inlet section is connected with a pressure water inlet pipe, and the pressure water inlet pipe is connected with a high-pressure water pump arranged outside the curing pool. The water tank bottom that the straight section is connected can be realized forming suction to inducer, straight section and the export section that sets up in the jet pipe, drives the water discharge of collecting in the water tank, realizes discharging the water of desorption in the solidification pond to under the not enough condition of water pressure of inducer, for guaranteeing normal drainage, through high pressure water pump to advancing the interior input high-pressure water of pressurized water pipe, keep the intraductal end water pressure of intaking of jet pipe, guarantee that the jet pipe normally works.
Furthermore, the plow-shaped strips are arranged on the lantern ring in a surrounding mode, and the number of the plow-shaped strips on the lantern ring is at least two, so that the contact area between the plow-shaped strips and the dredged mud is increased, and the crushing, cutting and extruding effects of the plow-shaped strips on the dredged mud are enhanced.
Furthermore, a movable bottom plate is arranged at the bottom of the rear part of the curing pool, a rotating shaft is arranged between the movable bottom plate and the bottom of the curing pool, and the lower part of the movable bottom plate is connected with a hydraulic cylinder used for separating the movable bottom plate from the ground in a matching manner. The device is used for adjusting the angle of the rear part of the curing tank relative to the sun irradiation light, so as to achieve the purposes of maximizing the utilization of solar energy and realizing controllable dredging and drying time.
Furthermore, the side wall of the rear part of the curing tank is provided with an opening and closing door for taking the dried dredged mud.
Compared with the prior art, the invention has the beneficial effects that: the invention discharges the water in the dredged mud to carry out pretreatment work on the dredged mud, and the dredged mud is suitable for the construction of the dredged mud backfilling project or building materials by improving the property of the dredged mud, the dredged mud is stirred by the stirring mechanism in the curing tank to be uniformly distributed and is easy to fully contact with the drainage mechanism to remove most of the water, the stirring mechanism is utilized to relieve the flow velocity of the dredged mud in the curing tank, the improvement of the dehydration efficiency of the dehydrated dredged mud and the improvement of the water quality of the removed water are realized, and the finally obtained water content of the dredged mud is good in curing quality and is suitable for the construction of the backfilling project or the building construction.
The channel dredging slurry solidifying device provided by the technical scheme makes up the defects of the prior art, and has the advantages of reasonable design, high automation degree and low operation cost.
Drawings
FIG. 1 is a top view of the channel dredging mud solidification apparatus of the present invention;
FIG. 2 is a schematic view of the feed tube of the present invention;
FIG. 3 is a schematic structural diagram of a stirring mechanism according to the present invention;
FIG. 4 is a schematic view of the stirring assembly of the present invention;
FIG. 5 is a schematic view of the drainage mechanism of the present invention;
FIG. 6 is a schematic view of the rear part of the curing tank of the present invention in a state of being separated from the ground.
Description of reference numerals: 10. a feed pipe; 11. a feed hopper; 12. a high pressure blower; 20. a curing tank; 21. opening and closing the door; 22. a hydraulic cylinder; 23. a movable bottom plate; 24. a rotating shaft; 30. a stirring mechanism; 31. a motor; 32. a chain gear set; 33. a stirring assembly; 33a. a collar; 33b, plow-shaped bars; 34. a stirring shaft; 40. a drainage mechanism; 41. a drain plate; 41a, a drain pipe; 42. a jet pipe; 42a. inducer; 42b, a straight section; 42c, an outlet section; 43. a water tank; 43a, a water outlet; 44. a pressure water inlet pipe; 45. a high pressure water pump; 50. a transparent glass plate.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
as shown in fig. 1, 3-5, the channel dredging mud solidifying apparatus comprises
A curing pool 20, wherein the side wall of the front part of the curing pool 20 is provided with a feeding pipe 10, the curing pool 20 is sequentially provided with a stirring mechanism 30 and a drainage mechanism 40 along the feeding direction, the drainage mechanisms 40 are arranged in the curing pool 20 in an array manner,
the stirring mechanism 30 comprises at least one stirring shaft 34 which is vertical to the feeding direction and horizontally arranged, the stirring shaft 34 is driven to rotate by a chain gear set 32 driven by a motor 31, annular grooves are formed in the stirring shaft 34, a stirring component 33 is sleeved on the annular grooves, and the stirring component 33 is composed of a lantern ring 33a matched with the annular grooves and arc-shaped triangular plow-shaped strips 33b.
The invention discharges the water in the dredged mud to carry out pretreatment work on the dredged mud, the dredged mud is suitable for the dredged mud backfill engineering construction or building materials by improving the property of the dredged mud, the dredged mud is stirred by the stirring mechanism 30 in the curing tank 20 to be uniformly distributed, the full contact probability between the dredged mud and the drainage mechanism 40 is increased to improve the dehydration efficiency, the stirring mechanism 30 is utilized to relieve the flow rate of the dredged mud in the curing tank, the plow-shaped strips 33b of the stirring mechanism 30 play a role in crushing and cutting the dredged mud flowing from head to face and guide the two plow-shaped strips 33b flowing from side to extrude the dredged mud in the middle, and the energy exchange among particles, bubbles and dropping liquid in the dredged mud is continuously carried out to reduce the particle size of the mud particles, reduce the viscosity of the mud particles, realize the improvement of the dehydration efficiency of the dredged mud and the improvement of the water quality removal, the finally obtained dredged mud has low water content and good curing quality, and is suitable for backfill engineering construction or building construction.
The top cover of the curing pool 20 is connected with a transparent glass plate 50 for concentrating solar rays to act on dredged mud, so that a drying chamber is formed in the curing pool below the transparent glass plate 50 to dry the dredged mud.
The drainage mechanism 40 is composed of a drainage plate 41 and jet pipes 42, the jet pipes 42 are parallel to the stirring shaft 34 and are uniformly distributed at the bottom of the solidification pool 20, and the drainage plate 41 is connected above the jet pipes 42 in a matching manner. The end height of the drainage plate 41 is higher than the pool surface height of the solidification pool 20. The drainage plate 41 is used for sucking the water in the dredged mud into the water tank 43 and then discharging the water into the jet pipe 42 to be discharged out of the solidification pond 20, so that the effect of reducing the water content of the dredged mud in the solidification pond 20 is achieved, and the top height of the drainage plate 41 is set to be higher than the pond surface height of the solidification pond 20 so as to improve the contact area between the dredged mud and the drainage plate 41 and achieve the effect of delaying the flow speed of the dredged mud in the solidification pond 20.
The drain board 41 is connected with the jet pipe 42 through the water tank 43, the upper part of the water tank 43 is obliquely provided with a drain pipe 41a connected with the water outlet end of the drain board 41, and the bottom of the water tank 43 is provided with a tapered water outlet 43a which is matched and connected with the jet pipe 42. The water outlet 43a communicates with the straight section 42b of the jet pipe 42. The drain pipe 41a is arranged at the joint of the water tank 43 and the bottom of the drain plate 41, and is used for enabling the water collected by the drain plate 41 to enter the water tank along the inside of the water tank 43 to form spiral jet flow, the spiral jet flow potential energy of the water is further increased through the conical water outlet 43a, the water flow speed of the straight section 42b is synchronously changed, turbulence is generated in the straight section 42b and the jet flow section 42c, particles in the water are enabled to be agglomerated in the turbulence, and the subsequent filtration of the discharged water and the improvement of the water quality of the discharged water are facilitated.
The jet pipe 42 is composed of an inlet section 42a, a straight section 42b and an outlet section 42c, the inlet section 42a is connected with a pressure water inlet pipe 44, and the pressure water inlet pipe 44 is connected with a high-pressure water pump 45 arranged outside the solidification tank 20. The inlet section 42a, the straight section 42b and the outlet section 42c arranged in the jet pipe 42 can realize that suction is formed at the bottom of the water tank 43 connected with the straight section 42b to drive the water collected in the water tank 43 to be discharged, so that the water removed in the solidification pond 20 is discharged, and under the condition that the water pressure of the inlet section 42a is insufficient, in order to ensure normal drainage, a high-pressure water body is input into the pressure water inlet pipe 44 through the high-pressure water pump 45, the water pressure of the water inlet end in the jet pipe 42 is kept, and the normal work of the jet pipe 42 is ensured.
The plow-shaped strips 33b are arranged on the sleeve ring 33a in a surrounding way, and the number of the plow-shaped strips 33b on the sleeve ring 33a is at least two, so that the contact area of the plow-shaped strips 33b and the dredged mud is increased, and the crushing, cutting and squeezing effects on the dredged mud are enhanced.
The bottom of the rear part of the curing pool 20 is provided with a movable bottom plate 23, a rotating shaft 24 is arranged between the movable bottom plate 23 and the bottom of the curing pool 20, and the lower part of the movable bottom plate 23 is connected with a hydraulic cylinder 22 which is used for separating the movable bottom plate 23 from the ground in a matching way. The device is used for adjusting the angle of the rear part of the curing tank 20 relative to the sun irradiation light, so as to achieve the purposes of maximizing the utilization of solar energy and realizing controllable dredging and drying time.
An opening and closing door 21 is arranged on the side wall of the rear part of the curing pool 20 and used for taking dried dredging mud.
Example 2:
as shown in fig. 2, a feed hopper 11 is disposed above the feed pipe 10, and a high pressure blower 12 is connected below the feed pipe in a matching manner for realizing that a primary pipe collision of the uneven mixture of the dredged mud and the solidifying agent occurs at the position of the branched end face to form a pipe pressure difference synchronously, so as to promote the change of the state of the fluid in the pipe and form a turbulent flow, thereby realizing the mixing of the dredged mud and the solidifying agent, delaying the flow speed of the dredged mud in the pipe, improving the flocculation effect of the dredged mud, and increasing the gasification rate of the water contained in the dredged mud after the dredged mud is pressurized in the pipe and discharged to the solidifying pool 20 to improve the gasification.
The feeding pipe 10 is used for inputting dredging mud and a curing agent, the curing agent is put in the feeding pipe 10 by using the feeding hopper 11 when the dredging mud is input, the mixing of the curing agent and the dredging mud is realized by the high-pressure blower 12, and the curing agent is selected according to the later action of the treated dredging mud;
curing dredged mud, selecting a curing agent A for backfill engineering,
the dredged mud is solidified and used for building construction, for example, sintered into bricks, and B curing agent is selected
The curing agent A comprises the following components in parts by weight: 70-85 parts of cement clinker, 10-12 parts of lime, 20-22 parts of furnace slag, 30-40 parts of lignosulfonate, 3-4 parts of triethanolamine phosphate and 2-4 parts of ethynyl cyclohexanol.
The curing agent B comprises the following components in parts by weight: 40-45 parts of coal ash, 10-18 parts of lime, 10-14 parts of corn straw, 6-7 parts of polyacrylamide and 3-4 parts of humate.
The addition amount of the curing agent is added according to the actual water content of the dredged mud.
The curing agent A adopted by the invention is used for promoting hydration between the curing agent and water by adding triethanolamine phosphate, ethynyl cyclohexanol and the like, increasing and generating products such as Ca (OH)2 and the like, and reducing the viscosity of clay particles, and the products such as Ca (OH)2 and the like are subjected to ion exchange with the clay particles and are absorbed among the particles to form a solidified substance, so that free water in the dredged mud is reduced, and the strength of the dredged mud is increased.
The B curing agent adopted by the invention can realize the exchange of Ca2+ in lime and ions on the surfaces of clay particles, so that the surfaces of the particles are in a charged state and are condensed, the hydration is realized, the bonding force among the particles is increased, the B curing agent is beneficial to improving heat and absorbing water, and is beneficial to forming the particles, and the B curing agent is finally used as fuel to realize the burning of dredged mud into bricks for engineering construction.
Example 3:
the channel dredging mud solidification equipment of the invention is characterized in that: the dredged mud generated in channel dredging is sucked into the feeding pipe 10 by using a mud sucking pump, whether a curing agent is added and what curing agent is added are selected according to actual conditions, the dredged mud enters the curing tank 20 and then is crushed, cut and extruded by the stirring mechanism 30, the moving speed of the dredged mud in the curing tank 20 is reduced, in the process, the dredged mud is dewatered by the drainage mechanism 40 through the drainage plate 41, the water tank 43 and the jet pipe 42, a water body is pretreated and then is discharged out of the curing tank 20, finally the dredged mud is moved to the rear part of the curing tank 20 and dried by the transparent glass plate 50 and sunlight irradiation, and the water content in the dredged mud can be controlled by controlling the movable bottom plate 23 to rotate through the hydraulic cylinder 22, so that the actually required data mud material is obtained.
The high pressure blower 12 used in the present invention includes, but is not limited to, a single-stage high pressure blower with a model number of 2HB 210 a 110.4 kw, which is a type of "leno", and the technology of the sprocket set 32 used in the present invention is a common technical means for those skilled in the art, and will not be described in detail herein, and as for the hydraulic cylinder 22, the high pressure water pump 45, etc., which are purchased according to actual needs, those skilled in the art will know, and will not be described in detail herein.
The embodiments of the present invention are not limited to the above examples, and various functional substitution structures are available, and all technical solutions adopting the technical idea of the present invention are within the scope of the present invention.
Claims (4)
1. The channel dredging mud solidifying equipment comprises
The device comprises a curing pool (20), wherein the side wall of the front part of the curing pool (20) is provided with a feeding pipe (10), the curing pool (20) is sequentially provided with a stirring mechanism (30) and a drainage mechanism (40) along the feeding direction, the drainage mechanism (40) is arranged in the curing pool (20) in an array manner,
the channel dredging slurry solidifying equipment is characterized in that:
the stirring mechanism (30) comprises at least one stirring shaft (34) which is vertical to the feeding direction and horizontally arranged, the stirring shaft (34) is driven to rotate by a chain gear set (32) driven by a motor (31), annular grooves are formed in the stirring shaft (34), stirring components (33) are sleeved on the annular grooves, and each stirring component (33) consists of a sleeve ring (33a) matched with the annular groove and an arc-shaped triangular plow-shaped strip (33 b);
a transparent glass plate (50) is covered on the top of the rear part of the curing tank (20);
the drainage mechanism (40) consists of a drainage plate (41) and jet pipes (42), the jet pipes (42) are parallel to the stirring shaft (34) and are uniformly distributed at the bottom of the solidification pool (20), and the drainage plate (41) is connected above the jet pipes (42) in a matching manner;
the drainage plate (41) is connected with the jet pipe (42) through a water tank (43), a drainage pipe (41a) connected with the water outlet end of the drainage plate (41) is obliquely arranged at the upper part of the water tank (43), and a conical water outlet (43a) is arranged at the bottom of the water tank (43) and is connected with the jet pipe (42) in a matched manner;
the jet pipe (42) consists of an inlet section (42a), a straight section (42b) and an outlet section (42c), the inlet section (42a) is connected with a pressure water inlet pipe (44), and the pressure water inlet pipe (44) is connected with a high-pressure water pump (45) arranged outside the solidification pool (20).
2. The channel dredging mud solidification apparatus of claim 1, wherein: the plow-shaped strips (33b) are arranged on the lantern ring (33a) in a surrounding mode, and at least two plow-shaped strips (33b) are arranged on the lantern ring (33 a).
3. The channel dredging mud solidification apparatus of claim 1, wherein: the pool bottom at the rear part of the curing pool (20) is provided with a movable bottom plate (23), a rotating shaft (24) is arranged between the movable bottom plate (23) and the pool bottom of the curing pool (20), and the lower part of the movable bottom plate (23) is connected with a hydraulic cylinder (22) for separating the movable bottom plate (23) from the ground in a matching way.
4. The channel dredging mud solidification apparatus of claim 1, wherein: an opening and closing door (21) is arranged on the side wall of the rear part of the curing pool (20).
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| CN201910022045.1A CN109987805B (en) | 2019-01-10 | 2019-01-10 | Channel dredging mud solidification equipment |
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| CN201910022045.1A CN109987805B (en) | 2019-01-10 | 2019-01-10 | Channel dredging mud solidification equipment |
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| CN111122272A (en) * | 2020-01-14 | 2020-05-08 | 深圳市正奇环境科技有限公司 | Stirring preprocessing device |
| CN113062392B (en) * | 2021-04-13 | 2021-11-23 | 广东省源天工程有限公司 | Dredging device for hydraulic engineering |
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