CN115162442A - Silt suction conveying and washing method - Google Patents
Silt suction conveying and washing method Download PDFInfo
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- CN115162442A CN115162442A CN202210929366.1A CN202210929366A CN115162442A CN 115162442 A CN115162442 A CN 115162442A CN 202210929366 A CN202210929366 A CN 202210929366A CN 115162442 A CN115162442 A CN 115162442A
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- 238000005406 washing Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 197
- 239000013049 sediment Substances 0.000 claims abstract description 39
- 238000005086 pumping Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 75
- 239000003638 chemical reducing agent Substances 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000003491 array Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 5
- 244000035744 Hura crepitans Species 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
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- 238000010168 coupling process Methods 0.000 claims description 2
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8833—Floating installations
- E02F3/885—Floating installations self propelled, e.g. ship
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9256—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head
- E02F3/9268—Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head with rotating cutting elements
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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
- E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/005—Equipment for conveying or separating excavated material conveying material from the underwater bottom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/02—Conveying equipment mounted on a dredger
- E02F7/023—Conveying equipment mounted on a dredger mounted on a floating dredger
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/04—Loading devices mounted on a dredger or an excavator hopper dredgers, also equipment for unloading the hopper
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
- E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/10—Pipelines for conveying excavated materials
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
A silt suction conveying and washing method specifically comprises the following steps: arranging a river bottom sediment suction and conveying system on the yellow river, and installing a wheel bucket type sand washer on the bank of the yellow river; secondly, pumping the silt in the target working area of the yellow river by using a river bottom silt pumping and conveying system, and conveying the silt into a bucket wheel type sand washer; and thirdly, washing the sediment by a wheel bucket type sand washer to obtain qualified sand, and conveying the washed sand to a designated place for drying and accumulating. The sand pumping and washing device is scientific in design, can realize sand pumping and sand washing, reasonably develops the silt resource, is energy-saving and environment-friendly, and is beneficial to industrialization of the silt resource.
Description
Technical Field
The invention belongs to the technical field of yellow river environment-friendly ecological treatment and resource utilization, and particularly relates to a silt suction conveying and washing method.
Background
The yellow river silt is in important position in national yellow river treatment, and the yellow river flows through the sandy soil brought down by the loess plateau, and along with the reduction of water flow, the downstream water potential of flowing through is reduced, and a large amount of silt is deposited on the riverbed due to the action of gravity, so that the riverbed is continuously raised, even a suspended river is formed, great influence is caused to the environment at two sides of the yellow river, and the silt deposition at the downstream river section is reduced more importantly. However, it should be seen that the silt is used as a substance, which has two properties, and one side harmful to the silt is called silt disaster, and the other side beneficial to the silt is called silt resource, wherein, the construction industry needs to consume a large amount of construction materials, especially the demand for silt is increasing, so if the silt can be changed into valuable things to make full use of the silt in the downstream river reach, and the comprehensive utilization of the silt resource is developed as an industry, the industry must obtain great economic, ecological and social benefits. Therefore, it is necessary to research a silt pumping and conveying and sand washing method.
Disclosure of Invention
The invention aims to provide a silt pumping, conveying and washing method, which is scientific in design, capable of realizing sand pumping and washing, reasonably developing silt resources, saving energy, protecting environment and beneficial to industrialization of the silt resources.
In order to achieve the purpose, the invention adopts the following technical scheme:
a silt suction conveying and washing method specifically comprises the following steps:
arranging a river bottom sediment suction and conveying system on the yellow river, and installing a wheel bucket type sand washer on the bank of the yellow river;
secondly, sucking the silt in the target working area of the yellow river by using a river bottom silt sucking and conveying system, and conveying the silt into a bucket wheel type sand washer;
and thirdly, washing the sediment by a wheel bucket type sand washer to obtain qualified sand, and conveying the washed sand to a designated place for drying and accumulating.
The river bottom sediment suction and conveying system comprises a ship body, a stirring type sediment suction device, a winch, a first support, a sediment suction pump, a power device and a sediment discharge pipeline assembly, wherein the first support, the winch, the sediment suction pump and the power device are arranged on the ship body, the first support is arranged in the middle of the front side of the ship body and extends forwards, the winch is located on the rear side of the first support, an inlet of the sediment suction pump is connected with the stirring type sediment suction device through a sediment suction pipe extending forwards, an outlet of the sediment suction pump is connected with the sediment discharge pipeline assembly extending backwards, a guide pulley assembly is arranged on the first support, a steel wire rope of the winch is connected with the stirring type sediment suction device through the guide pulley assembly, and the power device provides power for the winch, the sediment suction pump and the stirring type sediment suction device.
The stirring type sand suction device comprises a sealing cylinder which is vertically arranged, the top of the sealing cylinder is provided with three lifting rings which are distributed at the vertexes of a regular triangle, a steel wire rope is connected with one lifting ring through three connecting ropes, a sand guide pipe is vertically arranged at the center of the sealing cylinder, the upper end face and the lower end face of the sealing cylinder are respectively extended out of the upper end face and the lower end face of the sand guide pipe, the inlet end of the sand suction pipe is fixedly connected with the upper end of the sand guide pipe, two stirring motor speed reducers are symmetrically arranged in the sealing cylinder in the center, the output shafts of the stirring motor speed reducers are parallel to the central line of the sealing cylinder, the lower ends of the output shafts of the stirring motor speed reducers are axially connected with a stirring shaft through a shaft coupling, and the lower end of the stirring shaft is provided with a reamer type stirring wheel.
The reamer type stirring wheel comprises a circular ring, a central cylinder and six cutter arms, wherein the inner circle of the circular ring is fixedly connected with the outer circle of the upper part of the central cylinder through at least three radial spokes, the six cutter arms are uniformly arranged along the circumferential direction of the central cylinder, the lower end of each cutter arm is fixedly connected with the outer circle of the lower part of the central cylinder, the upper end of each cutter arm is fixedly connected with the bottom surface of the circular ring, each cutter arm is in a three-dimensional spiral shape, an arc-shaped connecting rib is arranged between every two adjacent cutter arms, the lower end of a stirring shaft extends into the central cylinder and is in transmission connection with the central cylinder through a flat key, the lower end of the stirring shaft is a stepped shaft with a thick upper part and a thin lower part, the lower end of the central cylinder is pressed against the step of the stepped shaft, and the lower end of the stirring shaft is in threaded connection with a nut in compression joint with the lower end of the central cylinder;
the sand discharge pipeline component comprises a sand discharge pipe and a plurality of floating bowls which are sleeved on the outer circle of the sand discharge pipe at intervals, the floating bowls float on the water surface and suspend the whole sand discharge pipe at a certain depth under the water, and the outlet of the sand discharge pipe extends into the bucket wheel type sand washer;
the power device comprises a diesel engine, a generator and a storage battery pack, wherein the diesel engine provides advancing power for the ship body, the diesel engine provides power for the winch and the sand suction pump at the same time, the diesel engine drives the generator to charge the storage battery pack, and the storage battery pack provides electric energy for the stirring type sand suction device.
A bucket wheel type sand washer comprises a sand washing box with an open top, an impeller shaft, a plurality of impellers, a three-phase asynchronous motor and a secondary speed reducer, wherein the impeller shaft is horizontally arranged along the left-right direction, bearing seats are fixedly arranged in the middle of the left side and the right side of the upper port of the sand washing box, two ends of the impeller shaft are respectively rotatably arranged on the two bearing seats, the impellers are arranged side by side and fixedly connected together, the impellers are concentrically sleeved and fixed on the impeller shaft and rotate in the sand washing box, a second bracket is fixedly arranged on the right side of the sand washing box, the three-phase asynchronous motor is fixedly arranged on the lower side part of the second bracket, the secondary speed reducer is fixedly arranged on the top of the second bracket, and a power shaft of the three-phase asynchronous motor is in transmission connection with a power input shaft of the secondary speed reducer through a belt transmission mechanism, the power output shaft of the secondary speed reducer is connected with the right end of the impeller shaft through a chain transmission mechanism in a transmission mode and drives the impeller shaft to rotate anticlockwise, a discharge hopper which is arranged in a low-back high-inclination mode and located below the front discharging portion of each impeller is fixedly mounted on the front side edge of the upper end opening of the sand washing box, a plurality of circumference array is arranged on the outer circumference of each impeller, and through shovel grooves are arranged inside and outside the impeller, a sand washing net structure is detachably and fixedly mounted at the bottom of each shovel groove, two overflow openings are formed in the left side plate of the sand washing box, overflow nozzles are fixedly mounted at the positions of the two overflow openings on the left side surface of the left side plate of the sand washing box, and an outlet of the sand discharge pipe is arranged above the rear side portion of the upper end opening of the sand washing box.
The impeller is arranged in parallel, each impeller comprises two circular ring wheel plates arranged at left and right intervals, the central line of each circular ring wheel plate is horizontally arranged along left and right directions, the excircle of each circular ring wheel plate is provided with an arc-shaped tooth groove formed by a plurality of circumference arrays, the middle part of each circular ring wheel plate is concentrically provided with a fixed circular plate, a plurality of radial plates formed by the circumference arrays are fixedly connected between the inner circle of each circular ring wheel plate and the excircle of each fixed circular plate, a plurality of shovel plates formed by the circumference arrays are fixedly connected between the two circular ring wheel plates, the shovel plates on the upper side are inclined in a high front-back manner, the upper side edges of the shovel plates on the upper side are aligned with the groove tops of the arc-shaped tooth grooves on the upper side, the shovel grooves are formed between the two adjacent shovel plates and the two circular ring wheel plates, and a tubular shaft is fixedly connected between the centers of the two fixed circular ring wheel plates;
the adjacent circular ring wheel plates of two adjacent impellers are in close contact, the adjacent fixed circular plates of the two adjacent impellers are fixedly connected through a plurality of fastening bolts, the tubular shafts of the four impellers are concentrically sleeved on the impeller shaft, the left side part and the right side part of the impeller shaft are fixedly sleeved with flange plates, the left flange plate is positioned on the left side of the leftmost impeller and fixedly connected with the left fixed circular plate of the leftmost impeller, and the right flange plate is positioned on the right side of the rightmost impeller and fixedly connected with the right fixed circular plate of the rightmost impeller.
The right-hand member fixedly connected with square filter plate of overflow mouth, square filter plate through a plurality of screw fixed connection on washing sandbox's left side board left surface and cover the overflow mouth, the left end integrated into one piece fixedly connected with pipe of overflow mouth, the fixed suit is connected with the drain pipe on the pipe.
Wash husky net structure including the installation square frame, screen cloth and locking square frame, the size of installation square frame is the same with the tank bottom size in shovel groove, the installation square frame sets up the tank bottom in shovel groove and respectively with two adjacent shovel boards, two ring wheel board fixed connection, a plurality of screw hole has evenly been seted up to a week of installation square frame, the square structure of screen cloth for having the frame, the frame of screen cloth, the size of locking square frame and installation square frame is the same, the round hole of a plurality of and each screw hole one-to-one is evenly seted up to the frame of screen cloth and a week of locking square frame, the frame sticis in the installation square frame outside, the locking square frame sticiss in the frame outside of screen cloth, the fastening screw fixed connection that the locking square frame passed each round hole and threaded connection in each screw hole through a plurality of roots is on the installation square frame.
The step (II) is specifically as follows: the ship body with the self-navigation function can automatically move to a target working area, after the ship body reaches the target working area, the stirring type sand suction device is lifted into water through the winch, two stirring motor speed reducers and a sand suction pump are started after the ship body sinks to a preset depth, the stirring motor speed reducers drive the stirring shaft to rotate, the stirring shaft is rotatably connected with the lower end face of the sealing cylinder through the bearing, the rotating connection position is sealed through the sealing device, the stirring shaft drives the reamer type stirring wheel at the lower end to rotate, underwater accumulated silt is stirred, the silt forms a slurry mixture through stirring and water, and under the action of great force suction of the sand suction pump, the slurry mixture is continuously added into the sand washing box from the rear side part of the upper end opening of the sand washing box through the sand guide pipe, the sand suction pipe and the sand discharge pipe.
The step (III) is specifically as follows: the three-phase asynchronous motor is started, the three-phase asynchronous motor drives the secondary speed reducer to rotate through the belt transmission mechanism, the secondary speed reducer drives the impeller shaft to rotate through the chain transmission mechanism, the impeller shaft drives the four impellers to slowly rotate anticlockwise, meanwhile, silt and water are continuously added into the sand washing box from the rear side part of the upper end opening of the sand washing box, the shoveling grooves of the impellers continuously dig out sand from the inner bottom of the sand washing box and turn upwards, rolling, grinding and collision are generated among the sand, impurities covering the surface of the sand are removed, bubbles wrapping the surface of the sand are damaged, the sand is finally slowly unloaded forwards and downwards from the upper part of the front side of the impeller onto the discharging hopper, the sand slides forwards through the discharging hopper to an external long-distance conveying belt to be conveyed to a designated place to be dried and stacked, and waste water is discharged through the overflow opening, the overflow nozzle and the drain pipe.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly has the following beneficial effects:
a central cylinder of a reamer type stirring wheel in the river bottom sediment suction and conveying system is used for being fixedly connected with a stirring shaft, six three-dimensional spiral cutter arms are arranged between the central cylinder and a circular ring, the cutter arms rotate up the sediment during rotation, the surfaces of the cutter arms are smooth and have edge structures, the cutting capacity is improved, and underwater weeds can be cut off; the arrangement of the arc-shaped connecting rib can improve the strength of the cutter arm;
the guide pulley component comprises two fixed pulleys, namely one on the front side and one on the rear side of the bracket;
the floating barrel adopted by the sand discharge pipeline assembly can provide buoyancy for the sand discharge pipe, so that the sand conveying channel keeps smooth transition, the energy consumption is reduced, and the sand discharge pipeline assembly is energy-saving and environment-friendly.
The wheel bucket type sand washer changes the traditional cylindrical screen into a plurality of independent screens, if one screen is damaged, the corresponding locking square frame is removed, so that the damaged screen can be conveniently and timely replaced, the maintenance is simple, the cost is low, the screens with corresponding meshes can be replaced according to the cleaning of sands with different granularities, and the application range is wide; the support frame with wash sandbox fixed connection, can produce the vibration when three-phase asynchronous motor rotates to can pass to the washing sandbox through the support frame with the vibration, thereby arouse the vibration of sand, make and produce the friction each other between the sand, reach better cleaning performance.
In conclusion, the sand pumping and washing device is scientific in design, can realize sand pumping and washing, reasonably develops the silt resource, is energy-saving and environment-friendly, and is beneficial to industrialization of the silt resource.
Drawings
Fig. 1 is a schematic view of the overall structure of the river bottom sediment suction and transport system of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a bottom view of a reamer type agitating wheel in the river bottom sediment suction and transport system of the present invention.
Fig. 4 is a left side view of fig. 3.
Fig. 5 is a right side view of the bucket wheel sand washer of the present invention.
Fig. 6 is a front view of the bucket wheel sand washer of the present invention.
Fig. 7 is a top view of the bucket wheel sand washer of the present invention.
Fig. 8 is a sectional view of the impeller of the bucket wheel sand washer of the present invention.
Fig. 9 is a right side view of the overflow lip of the bucket wheel sand washer of the present invention.
Fig. 10 is a schematic structural diagram of a sand washing net structure in the bucket wheel type sand washer of the present invention.
Detailed Description
The embodiments of the present invention are further described below with reference to the drawings.
As shown in fig. 1-10, a silt pumping, conveying and washing method specifically comprises the following steps:
arranging a river bottom sediment suction and conveying system on the yellow river, and installing a wheel bucket type sand washer on the bank of the yellow river;
secondly, pumping the silt in the target working area of the yellow river by using a river bottom silt pumping and conveying system, and conveying the silt into a bucket wheel type sand washer;
and (III) washing the sediment by a wheel bucket type sand washer to obtain qualified sand, and conveying the washed sand to a designated place for drying and stacking.
The river bottom sediment suction and conveying system comprises a ship body 60, a stirring type sand suction device, a winch 61, a first support 62, a sand suction pump 63, a power device 64 and a sand discharge pipeline assembly, wherein the first support 62, the winch 61, the sand suction pump 63 and the power device 64 are arranged on the ship body 60, the first support 62 is arranged in the middle of the front side of the ship body 60 and extends forwards, the winch 61 is located on the rear side of the first support 62, an inlet of the sand suction pump 63 is connected with the stirring type sand suction device through a sand suction pipe 65 extending forwards, an outlet of the sand suction pump 63 is connected with the sand discharge pipeline assembly extending backwards, a guide pulley assembly is arranged on the first support 62, a steel wire rope of the winch 61 is connected with the stirring type sand suction device through the guide pulley assembly, and the power device 64 provides power for the winch 61, the sand suction pump 63 and the stirring type sand suction device.
The stirring type sand suction device comprises a vertically arranged sealing cylinder 66, three lifting rings 67 distributed at the top of the sealing cylinder 66 are arranged, a steel wire rope is correspondingly connected with one lifting ring 67 through three connecting ropes 68, a sand guide pipe 69 is vertically arranged at the center of the sealing cylinder 66, the upper end port and the lower end port of the sand guide pipe 69 respectively extend out of the upper end surface and the lower end surface of the sealing cylinder 66, the inlet end of a sand suction pipe 65 is fixedly connected with the upper end of the sand guide pipe 69, two stirring motor speed reducers are symmetrically arranged in the center of the sealing cylinder 66, the output shafts of the stirring motor speed reducers are parallel to the central line of the sealing cylinder 66, the lower end of the output shaft of each stirring motor speed reducer is coaxially connected with a stirring shaft 70 through a coupler, and the lower end of the stirring shaft 70 is provided with a reamer type stirring wheel 71.
The reamer type stirring wheel 71 comprises a circular ring 72, a central cylinder 73 and six cutter arms 74, the inner circle of the circular ring 72 is fixedly connected with the outer circle of the upper part of the central cylinder 73 through at least three radial spokes, the six cutter arms 74 are uniformly arranged along the circumferential direction of the central cylinder 73, the lower end of each cutter arm 74 is fixedly connected with the outer circle of the lower part of the central cylinder 73, the upper end of each cutter arm 74 is fixedly connected to the bottom surface of the circular ring 72, each cutter arm 74 is in a three-dimensional spiral shape, an arc-shaped connecting rib 75 is arranged between every two adjacent cutter arms 74, the lower end of a stirring shaft 70 extends into the central cylinder 73 and is in transmission connection with the central cylinder 73 through a flat key, the lower end of the stirring shaft 70 is a stepped shaft with a thick upper part and a thin lower part, the lower end of the central cylinder 73 is pressed against the stepped shaft, and the lower end of the stirring shaft 70 is in threaded connection with a nut in compression joint with the lower end of the central cylinder 73.
The sand discharge pipeline component comprises a sand discharge pipe 76 and a plurality of buoys 77 which are sleeved on the excircle of the sand discharge pipe 76 at intervals, the buoys 77 float on the water surface and suspend the whole sand discharge pipe 76 underwater for a certain depth, and the outlet of the sand discharge pipe 76 extends into the bucket wheel type sand washer;
the power device 64 comprises a diesel engine, a generator and a storage battery pack, the diesel engine provides advancing power for the ship body 60, the diesel engine provides power for the winch 61 and the sand suction pump 63 at the same time, the diesel engine drives the generator to charge the storage battery pack, and the storage battery pack provides electric energy for the stirring type sand suction device.
A bucket wheel type sand washer comprises a sand washing box 78 with an open top, an impeller shaft 79, a plurality of impellers 80, a three-phase asynchronous motor 81 and a secondary speed reducer 82, wherein the impeller shaft 79 is horizontally arranged along the left-right direction, bearing seats 83 are fixedly arranged in the left side edge and the right side edge of an upper port of the sand washing box 78 respectively, two ends of the impeller shaft 79 are respectively rotatably arranged on the two bearing seats 83, each impeller 80 is arranged side by side and fixedly connected together, each impeller 80 is concentrically sleeved and fixed on the impeller shaft 79 and rotates in the sand washing box 78, a second support 84 is fixedly arranged on the right side of the sand washing box 78, the three-phase asynchronous motor 81 is fixedly arranged on the lower side portion of the second support 84, the secondary speed reducer 82 is fixedly arranged on the top of the second support 84, a power shaft of the three-phase asynchronous motor 81 is in a transmission mode through a belt transmission mechanism 85 and is connected with a power input shaft of the secondary speed reducer 82, a power output shaft of the secondary speed reducer 82 is in a transmission mode through a chain transmission mechanism 86 and is connected with the right end of the impeller shaft 79 and drives the impeller shaft 79 to rotate, a plurality of overflow pipe arrays 88 arranged on the left side edge of the sand washing box 78, two overflow pipes of which are fixedly arranged on the left side edge of a discharge port of a discharge tank, and a discharge port of a discharge plate array of a sand washing box 88 which is arranged on the left side of the sand washing box 78, and is arranged on the sand washing box 78, and a discharge port of the sand washing box, and a plurality of the sand washing box 96.
The four impellers 80 are arranged side by side, each impeller 80 comprises two circular wheel plates 89 arranged at left and right intervals, the central lines of the circular wheel plates 89 are horizontally arranged along left and right directions, arc-shaped tooth sockets 90 arranged in a plurality of circumference arrays are formed in the excircle of each circular wheel plate 89, fixed circular plates 91 are concentrically arranged in the middle of each circular wheel plate 89, a plurality of spoke plates 92 arranged in the circumference arrays are fixedly connected between the inner circle of each circular wheel plate 89 and the excircle of each fixed circular plate 91, shovel plates 93 arranged in the circumference arrays are fixedly connected between the two circular wheel plates 89, the shovel plates 93 on the upper side are obliquely arranged in a high-back manner, the upper side edges of the shovel plates 93 on the upper side are aligned with the groove tops of the arc-shaped tooth sockets 90 on the upper side, the shovel grooves 88 are formed between the two adjacent shovel plates 93 and the two circular wheel plates 89, and pipe shafts 94 are fixedly connected between the centers of the two fixed circular plate 91;
the adjacent circular ring wheel plates 89 of the two adjacent impellers 80 are in close contact, the adjacent fixed circular plates 91 of the two adjacent impellers 80 are fixedly connected through a plurality of fastening bolts, the pipe shafts 94 of the four impellers 80 are concentrically sleeved on the impeller shaft 79, the left side part and the right side part of the impeller shaft 79 are fixedly sleeved with the flange plates 95, the flange plate 95 on the left side is positioned on the left side of the leftmost impeller 80 and is fixedly connected with the left fixed circular plate 91 of the leftmost impeller 80, and the flange plate 95 on the right side is positioned on the right side of the rightmost impeller 80 and is fixedly connected with the right fixed circular plate 91 of the rightmost impeller 80.
The right end of the overflow nozzle 96 is fixedly connected with a square filter plate 133, the square filter plate 133 is fixedly connected to the left side surface of the left side plate of the sand washing box 78 through a plurality of screws and covers the overflow port, the left end of the overflow nozzle 96 is integrally and fixedly connected with a circular pipe, and a drain pipe 97 is fixedly sleeved on the circular pipe;
the sand washing net structure comprises an installation square frame 98, a screen 99 and a locking square frame 100, wherein the size of the installation square frame 98 is the same as the size of the bottom of a shovel groove 88, the installation square frame 98 is arranged at the bottom of the shovel groove 88 and is respectively fixedly connected with two adjacent shovel plates 93 and two circular ring wheel plates 89, a plurality of threaded holes are uniformly formed in the periphery of the installation square frame 98, the screen 99 is of a square structure with a frame, the frame of the screen 99, the size of the locking square frame 100 is the same as that of the installation square frame 98, a plurality of round holes 101 corresponding to the threaded holes one by one are uniformly formed in the frame of the screen 99 and the periphery of the locking square frame 100, the frame of the screen 99 is tightly pressed outside the installation square frame 98, the locking square frame 100 is tightly pressed outside the frame of the screen 99, and the locking square frame 100 is fixedly connected to the installation square frame 98 through a plurality of fastening screws which penetrate through the round holes 101 and are in the threaded holes.
The step (II) is specifically as follows: the ship body 60 with the self-navigation function can automatically move to a target working area, after the ship body reaches the target working area, firstly, the stirring type sand suction device is hoisted underwater through the winch 61, two stirring motor speed reducers and a sand suction pump 63 are started after the ship body sinks to a preset depth, the stirring motor speed reducers drive the stirring shaft 70 to rotate, the stirring shaft 70 is rotatably connected with the lower end face of the sealing cylinder 66 through the bearing, the rotating connection position is sealed through the sealing device, the stirring shaft 70 drives the reamer type stirring wheel 71 at the lower end to rotate, silt accumulated underwater is stirred, the silt and water form a slurry mixture through stirring, and under the action of strong force suction of the sand suction pump 63, the slurry mixture is continuously added into the sand washing box 78 from the rear side part of the upper end opening of the sand washing box 78 through the sand guide pipe 69, the sand suction pipe 65 and the sand discharge pipe 76.
The step (III) is specifically as follows: the three-phase asynchronous motor 81 is started, the three-phase asynchronous motor 81 drives the secondary speed reducer 82 to rotate through the belt transmission mechanism 85, the secondary speed reducer 82 drives the impeller shaft 79 to rotate through the chain transmission mechanism 86, the impeller shaft 79 drives the four impellers 80 to slowly rotate anticlockwise, meanwhile, silt and water are continuously added into the sand washing box 78 from the rear side part of the upper end opening of the sand washing box 78, shoveling grooves 88 of the impellers 80 continuously dig out sand from the bottom in the sand washing box 78 and turn forwards and upwards, so that rolling, grinding and collision are generated among the sand, impurities covering the surface of the sand are removed, bubbles covering the surface of the sand are damaged, the sand is finally discharged onto the discharging hopper 87 from the upper part of the front side of the impeller 80 slowly and at a constant speed, the sand slides forwards to the external long-distance conveyor belt through the discharging hopper 87 to be conveyed to a designated place for drying and stacking, and waste water is discharged through the overflow port, the overflow nozzle 96 and the drain pipe 97.
The ship body 60, the winch 61, the sand suction pump 63, the guide pulley assembly, the stirring motor reducer, the sealing device, the power device 64, the sand discharge pipeline assembly, the three-phase asynchronous motor 81 and the secondary reducer 82 are all in the prior mature technology and are commercially available in the market, the specific construction and the working principle are not described any more, and the control part in the invention does not relate to a new computer program.
The sand pumping and washing device is scientific in design, can realize sand pumping and sand washing, reasonably develops the silt resource, is energy-saving and environment-friendly, and is beneficial to industrialization of the silt resource.
The guide pulley assembly includes two fixed pulleys 132, one on the front side and one on the rear side of the first bracket 62.
The above embodiments are merely to illustrate rather than to limit the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that; modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (10)
1. A silt suction conveying and washing method is characterized in that: the method specifically comprises the following steps:
arranging a river bottom sediment suction and conveying system on the yellow river, and installing a wheel bucket type sand washer on the bank of the yellow river;
secondly, pumping the silt in the target working area of the yellow river by using a river bottom silt pumping and conveying system, and conveying the silt into a bucket wheel type sand washer;
and (III) washing the sediment by a wheel bucket type sand washer to obtain qualified sand, and conveying the washed sand to a designated place for drying and stacking.
2. The sand suction conveying and sand washing method according to claim 1, characterized in that: the river bottom sediment suction and conveying system comprises a ship body, a stirring type sediment suction device, a winch, a first support, a sediment suction pump, a power device and a sediment discharge pipeline assembly, wherein the first support, the winch, the sediment suction pump and the power device are arranged on the ship body, the first support is arranged in the middle of the front side of the ship body and extends forwards, the winch is located on the rear side of the first support, an inlet of the sediment suction pump is connected with the stirring type sediment suction device through a sediment suction pipe extending forwards, an outlet of the sediment suction pump is connected with the sediment discharge pipeline assembly extending backwards, a guide pulley assembly is arranged on the first support, a steel wire rope of the winch is connected with the stirring type sediment suction device through the guide pulley assembly, and the power device provides power for the winch, the sediment suction pump and the stirring type sediment suction device.
3. The sand suction conveying and washing method according to claim 2, characterized in that: the stirring type sand suction device comprises a vertically arranged sealing cylinder, the top of the sealing cylinder is provided with three lifting rings distributed at the vertexes of a regular triangle, a steel wire rope is connected with one lifting ring through three connecting ropes, a sand guide pipe is vertically arranged at the center of the sealing cylinder, the upper end face and the lower end face of the sealing cylinder are respectively extended out of the upper end port and the lower end port of the sand guide pipe, the inlet end of the sand suction pipe is fixedly connected with the upper end of the sand guide pipe, two stirring motor speed reducers are symmetrically arranged in the sealing cylinder in the center, the output shafts of the stirring motor speed reducers are parallel to the central line of the sealing cylinder, the lower end of the output shaft of each stirring motor speed reducer is connected with a stirring shaft in the same axial direction through a shaft coupling, and the lower end of the stirring shaft is provided with a reamer type stirring wheel.
4. The sand suction conveying and sand washing method according to claim 3, characterized in that: the reamer type stirring wheel comprises a circular ring, a central cylinder and six cutter arms, wherein the inner circle of the circular ring is fixedly connected with the outer circle of the upper part of the central cylinder through at least three radial spokes, the six cutter arms are uniformly arranged along the circumferential direction of the central cylinder, the lower end of each cutter arm is fixedly connected with the outer circle of the lower part of the central cylinder, the upper end of each cutter arm is fixedly connected with the bottom surface of the circular ring, each cutter arm is in a three-dimensional spiral shape, an arc-shaped connecting rib is arranged between every two adjacent cutter arms, the lower end of a stirring shaft extends into the central cylinder and is in transmission connection with the central cylinder through a flat key, the lower end of the stirring shaft is a stepped shaft with a thick upper part and a thin lower part, the lower end of the central cylinder is pressed against the step of the stepped shaft, and the lower end of the stirring shaft is in threaded connection with a nut in compression joint with the lower end of the central cylinder;
the sand discharge pipeline component comprises a sand discharge pipe and a plurality of floating bowls which are sleeved on the outer circle of the sand discharge pipe at intervals, the floating bowls float on the water surface and suspend the whole sand discharge pipe at a certain depth under the water, and the outlet of the sand discharge pipe extends into the bucket wheel type sand washer;
the power device comprises a diesel engine, a generator and a storage battery pack, wherein the diesel engine provides advancing power for the ship body, the diesel engine provides power for the winch and the sand suction pump at the same time, the diesel engine drives the generator to charge the storage battery pack, and the storage battery pack provides electric energy for the stirring type sand suction device.
5. The sand suction conveying and washing method according to claim 4, characterized in that: a bucket wheel type sand washer comprises a sand washing box with an open top, an impeller shaft, a plurality of impellers, a three-phase asynchronous motor and a secondary speed reducer, wherein the impeller shaft is horizontally arranged along the left-right direction, bearing seats are fixedly arranged in the middle of the left side and the right side of the upper port of the sand washing box, two ends of the impeller shaft are respectively rotatably arranged on the two bearing seats, the impellers are arranged side by side and fixedly connected together, the impellers are concentrically sleeved and fixed on the impeller shaft and rotate in the sand washing box, a second bracket is fixedly arranged on the right side of the sand washing box, the three-phase asynchronous motor is fixedly arranged on the lower side part of the second bracket, the secondary speed reducer is fixedly arranged on the top of the second bracket, and a power shaft of the three-phase asynchronous motor is in transmission connection with a power input shaft of the secondary speed reducer through a belt transmission mechanism, the power output shaft of the secondary speed reducer is connected with the right end of the impeller shaft through a chain transmission mechanism in a transmission mode and drives the impeller shaft to rotate anticlockwise, a discharge hopper which is arranged in a low-back high-inclination mode and located below the front discharging portion of each impeller is fixedly mounted on the front side edge of the upper end opening of the sand washing box, a plurality of circumference array is arranged on the outer circumference of each impeller, and through shovel grooves are arranged inside and outside the impeller, a sand washing net structure is detachably and fixedly mounted at the bottom of each shovel groove, two overflow openings are formed in the left side plate of the sand washing box, overflow nozzles are fixedly mounted at the positions of the two overflow openings on the left side surface of the left side plate of the sand washing box, and an outlet of the sand discharge pipe is arranged above the rear side portion of the upper end opening of the sand washing box.
6. The sand suction conveying and sand washing method according to claim 5, characterized in that: the impeller is arranged in parallel, each impeller comprises two circular ring wheel plates arranged at left and right intervals, the central line of each circular ring wheel plate is horizontally arranged along left and right directions, the excircle of each circular ring wheel plate is provided with an arc-shaped tooth groove formed by a plurality of circumference arrays, the middle part of each circular ring wheel plate is concentrically provided with a fixed circular plate, a plurality of radial plates formed by the circumference arrays are fixedly connected between the inner circle of each circular ring wheel plate and the excircle of each fixed circular plate, a plurality of shovel plates formed by the circumference arrays are fixedly connected between the two circular ring wheel plates, the shovel plates on the upper side are inclined in a high front-back manner, the upper side edges of the shovel plates on the upper side are aligned with the groove tops of the arc-shaped tooth grooves on the upper side, the shovel grooves are formed between the two adjacent shovel plates and the two circular ring wheel plates, and a tubular shaft is fixedly connected between the centers of the two fixed circular ring wheel plates;
the adjacent ring wheel boards of two adjacent impellers are in close contact, the adjacent fixed circular boards of two adjacent impellers are fixedly connected through a plurality of fastening bolts, the tubular shafts of the four impellers are sleeved on the impeller shaft in the same center, the left side part and the right side part of the impeller shaft are fixedly sleeved with flange plates, the left flange plate is positioned on the left side of the leftmost impeller and fixedly connected with the left fixed circular board of the leftmost impeller, and the right flange plate is positioned on the right side of the rightmost impeller and fixedly connected with the right fixed circular board of the rightmost impeller.
7. The sand suction conveying and sand washing method according to claim 6, characterized in that: the right-hand member fixedly connected with square filter plate of overflow mouth, square filter plate pass through a plurality of screw fixed connection on washing the left surface of sandbox left side board and cover the overflow mouth, the left end integrated into one piece fixedly connected with pipe of overflow mouth, the fixed suit is connected with the drain pipe on the pipe.
8. The sand suction transporting and washing method as claimed in claim 7, wherein: the sand washing net structure comprises an installation square frame, a screen and a locking square frame, the size of the installation square frame is the same as the size of the bottom of a shovel groove, the installation square frame is arranged at the bottom of the shovel groove and is respectively connected with two adjacent shovel plates, two circular ring wheel plate fixed connections, a plurality of threaded holes are uniformly formed in the periphery of the installation square frame, the screen is of a square structure with a frame, the frame of the screen is the same as the size of the locking square frame and the installation square frame, round holes corresponding to the threaded holes in a plurality of numbers are uniformly formed in the frame of the screen and the periphery of the locking square frame, the frame of the screen is tightly pressed outside the installation square frame, the locking square frame is tightly pressed outside the frame of the screen, and the locking square frame is fixedly connected to the installation square frame through a plurality of fastening screws which the locking square frame penetrates through the round holes and are in the threaded holes.
9. The sand suction transporting and washing method as claimed in claim 8, wherein: the step (II) is specifically as follows: the ship body with the self-navigation function can automatically move to a target working area, after the ship body reaches the target working area, the stirring type sand suction device is lifted into water through the winch, two stirring motor speed reducers and a sand suction pump are started after the ship body sinks to a preset depth, the stirring motor speed reducers drive the stirring shaft to rotate, the stirring shaft is rotatably connected with the lower end face of the sealing cylinder through the bearing, the rotating connection position is sealed through the sealing device, the stirring shaft drives the reamer type stirring wheel at the lower end to rotate, underwater accumulated silt is stirred, the silt forms a slurry mixture through stirring and water, and under the action of great force suction of the sand suction pump, the slurry mixture is continuously added into the sand washing box from the rear side part of the upper end opening of the sand washing box through the sand guide pipe, the sand suction pipe and the sand discharge pipe.
10. The sand suction transporting and washing method as claimed in claim 9, wherein: the step (III) is specifically as follows: the three-phase asynchronous motor is started, the three-phase asynchronous motor drives the secondary speed reducer to rotate through the belt transmission mechanism, the secondary speed reducer drives the impeller shaft to rotate through the chain transmission mechanism, the impeller shaft drives the four impellers to slowly rotate anticlockwise, meanwhile, silt and water are continuously added into the sand washing box from the rear side part of the upper end opening of the sand washing box, the shovel grooves of the impellers continuously dig out sand from the bottom in the sand washing box and turn upwards, rolling, grinding and collision are generated among the sand, impurities covering the surface of the sand are removed, bubbles wrapping the surface of the sand are damaged, the sand is finally slowly discharged downwards to the discharging hopper from the upper part of the front side of the impeller forwards, the sand slides downwards to the outside long-distance conveying belt through the discharging hopper and is conveyed to a designated place to be dried and accumulated, and waste water is discharged through the overflow opening, the overflow nozzle and the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210929366.1A CN115162442B (en) | 2022-08-03 | 2022-08-03 | Sediment sucking, conveying and sand washing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210929366.1A CN115162442B (en) | 2022-08-03 | 2022-08-03 | Sediment sucking, conveying and sand washing method |
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| CN115162442A true CN115162442A (en) | 2022-10-11 |
| CN115162442B CN115162442B (en) | 2024-06-21 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004324358A (en) * | 2003-04-28 | 2004-11-18 | Ishikawajima Harima Heavy Ind Co Ltd | Earth and sand excavating suction equipment |
| CN2668704Y (en) * | 2004-05-27 | 2005-01-05 | 张延兵 | Yellow-river sand-mud pumping apparatus |
| CN203808130U (en) * | 2014-02-28 | 2014-09-03 | 山东海领船舶机械有限公司 | Water sand washing device for cutter suction dredger |
| CN206613599U (en) * | 2017-04-01 | 2017-11-07 | 昌吉市三元机械有限公司 | A kind of vane type sand washer |
| CN108894264A (en) * | 2018-06-27 | 2018-11-27 | 安徽佳明环保科技股份有限公司 | A kind of strand suction device for river surface contamination removing ship |
| CN210846735U (en) * | 2019-09-30 | 2020-06-26 | 湖州德宁矿业有限公司 | Sand washer |
-
2022
- 2022-08-03 CN CN202210929366.1A patent/CN115162442B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004324358A (en) * | 2003-04-28 | 2004-11-18 | Ishikawajima Harima Heavy Ind Co Ltd | Earth and sand excavating suction equipment |
| CN2668704Y (en) * | 2004-05-27 | 2005-01-05 | 张延兵 | Yellow-river sand-mud pumping apparatus |
| CN203808130U (en) * | 2014-02-28 | 2014-09-03 | 山东海领船舶机械有限公司 | Water sand washing device for cutter suction dredger |
| CN206613599U (en) * | 2017-04-01 | 2017-11-07 | 昌吉市三元机械有限公司 | A kind of vane type sand washer |
| CN108894264A (en) * | 2018-06-27 | 2018-11-27 | 安徽佳明环保科技股份有限公司 | A kind of strand suction device for river surface contamination removing ship |
| CN210846735U (en) * | 2019-09-30 | 2020-06-26 | 湖州德宁矿业有限公司 | Sand washer |
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