River channel dredging device

Abstract

The utility model provides a riverway desilting device, which relates to the technical field of hydraulic engineering equipment, and comprises an outer cylinder, a screening device is arranged in the outer cylinder, the screening device comprises fixed cylinders fixed at two ends of the inner wall of the outer cylinder, the inner walls of the fixed cylinders are rotatably connected with a screening cylinder, a rotating rod is arranged in the screening cylinder, and the rotating rod is rotatably connected with the screening cylinder. And an auger is installed on the outer surface of the rotating rod, a feeding pipe is installed on the outer surface of the fixed cylinder located at the bottom end, an end opening of the feeding pipe faces upwards and penetrates through the outer cylinder, and a discharging pipe is installed on the outer surface of the fixed cylinder located at the top end. According to the river channel desilting device, the screen drum is arranged in the outer drum, a rotating rod rotates to drive an auger to rotate so that sludge below the screen drum can be brought to the position above the screen drum, in the sludge moving process, muddy water leaves the screen drum through screen holes of the screen drum, and the sludge subjected to muddy water separation continues to move and leaves the outer drum through a discharging pipe; and mud-water separation in the sludge cleaning process is realized.

Description

Technical Field

[0001] The utility model relates to a silt clearing device, in particular to a river channel silt clearing device, belonging to the technical field of water conservancy engineering equipment. Background Art

[0002] River dredging generally refers to the management of river channels, which is a water conservancy project. After years of accumulation, the silt in the river water will continue to settle at the bottom of the river, causing the riverbed to continue to rise. Many rivers have not been dredged and maintained for many years, so their siltation phenomenon has become more and more serious year by year, resulting in a decrease in river flood control and drainage standards.

[0003] However, river silt is rich in minerals that can be used as fertilizer. Usually, the silt will be recycled after cleaning. Common river silt clearing equipment clears the silt from the riverbed without screening and filtering. If the silt is transported directly at this time, the silt contains a lot of water, and the weight and volume are large, the transportation cost is very high, and the operation is inconvenient. At the same time, the silt clearing equipment with screening and filtering can easily have its screening position blocked by silt, thereby affecting the screening efficiency.

[0004] Therefore, a river channel desilting device is proposed. Utility Model Content

[0005] The utility model provides a river channel silt clearing device to achieve mud and water separation during the silt clearing process and maintain overall normal operation during the mud and water separation process.

[0006] The utility model is realized through the following technical solutions: a river dredging device, comprising an outer cylinder, a screening device is arranged inside the outer cylinder, the screening device comprises a fixed cylinder fixed at both ends of the inner wall of the outer cylinder, the inner wall of the fixed cylinder is rotatably connected with a screen cylinder, a rotating rod is arranged inside the screen cylinder, an auger is installed on the outer surface of the rotating rod, a feed pipe is installed on the outer surface of the fixed cylinder at the bottom end, the feed pipe port faces upward and passes through the outer cylinder, a discharge pipe is installed on the outer surface of the fixed cylinder at the top end, the discharge pipe port faces downward and passes through the outer cylinder, and a cleaning device is arranged on the outside of the screen cylinder.

[0007] The screening device also includes a gear ring fixed to the outer surface of the screen drum, a fixed plate is installed on the outer surface of the fixed drum located above, a first motor is fixed to the output end of the fixed plate, an active rod is installed at the output end of the first motor, two active gears are installed on the outer surface of the active rod, the gear ring is engaged with the active gear, and the active rod can be driven to rotate by the output end of the first motor, thereby driving the active gear to rotate. The rotation of the active gear drives the gear ring to rotate, thereby driving the screen drum to rotate.

[0008] The cleaning device includes a cleaning rod, a plurality of cleaning brushes are fixed to the outer surface of the cleaning rod, a support plate is fixed to the outer surface of the fixed cylinder, the cleaning rod is rotatably connected to the support plate, a driven gear is installed on the outer surface of the cleaning rod, the driven gear is meshed with the driving gear, the rotation of the driving gear can drive the driven gear to rotate, and the rotation of the driven gear can drive the cleaning rod to rotate.

[0009] A high-pressure air pump is installed on the top of the outer cylinder, a ventilation pipe is provided on the side of the sieve cylinder, and an injection pipe is installed on the outer surface of the ventilation pipe. The output end of the injection pipe is aligned with the side of the sieve cylinder, and the output end of the high-pressure air pump is connected with the ventilation pipe through a pipeline. The high-pressure air pump drives high-pressure gas to be ejected from the injection pipe to clean the sieve holes of the sieve cylinder to avoid blockage of the sieve holes.

[0010] Brackets are fixed to both left and right ends of the ventilation pipe, and the brackets are fixed to the fixing cylinder, so that the stability of the ventilation pipe can be maintained by the brackets.

[0011] A second motor is installed at the top of the outer cylinder, and the output end of the second motor is fixed to the rotating rod. The output ends of the first motor and the second motor rotate in opposite directions, and the output end of the second motor can drive the rotation of the rotating rod inside the screen cylinder.

[0012] A drain port is provided on the outer surface of the bottom end of the outer cylinder. The drain port is located just below the fixed cylinder. The muddy water discharged from the screen cylinder can leave the outer cylinder through the drain port. At the same time, the drain port can stabilize the air pressure inside the screen cylinder.

[0013] The utility model provides a river channel desilting device, which has the following beneficial effects:

[0014] 1. The river dredging device sets a screen drum inside the outer drum. The rotation of the rotating rod drives the auger to rotate and bring the silt below the screen drum to the top of the screen drum. During the movement of the silt, the mud and water leave the screen drum through the sieve holes of the screen drum. The silt that has been separated from the water continues to move and leaves the outer drum through the discharge pipe, realizing the separation of mud and water during the silt cleaning process.

[0015] 2. The river channel desilting device is provided with a cleaning rod so that the cleaning rod rotates during the rotation of the screen drum to clean the outer surface of the screen drum once. After the cleaning is completed, the high-pressure air pump drives the high-pressure gas to be ejected from the jet pipe to perform a secondary cleaning on the sieve holes of the screen drum to avoid blockage of the sieve holes and maintain the normal operation of the screen drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2This is a schematic diagram of the internal structure of the outer cylinder of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the cleaning device of the utility model;

[0019] Figure 4 This is a structural diagram of the ventilation pipe position of the utility model.

[0020] Description of Reference Numerals

[0021] 1. Outer cylinder;

[0022] 2. Screening device; 201. Fixed cylinder; 202. Screen cylinder; 203. Rotating rod; 204. Auger; 205. Feed pipe; 206. Discharge pipe; 207. Gear ring; 208. Fixed plate; 209. First motor; 210. Active rod; 211. Active gear;

[0023] 3. Cleaning device; 301. Cleaning rod; 302. Cleaning brush; 303. Support plate; 304. Driven gear;

[0024] 4. High-pressure air pump; 5. Ventilation pipe; 6. Jet pipe; 7. Bracket; 8. Second motor; 9. Drain outlet. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 4 The embodiment of the present invention provides a river dredging device, including an outer cylinder 1, a screening device 2 is arranged inside the outer cylinder 1, the screening device 2 includes a fixed cylinder 201 fixed to the two ends of the inner wall of the outer cylinder 1, the inner wall of the fixed cylinder 201 is rotatably connected with a screen cylinder 202, a rotating rod 203 is arranged inside the screen cylinder 202, and an auger 204 is installed on the outer surface of the rotating rod 203, a feed pipe 205 is installed on the outer surface of the fixed cylinder 201 at the bottom end, the feed pipe 205 port faces upward and passes through the outer cylinder 1, a discharge pipe 206 is installed on the outer surface of the fixed cylinder 201 at the top, the discharge pipe 206 port faces downward and passes through the outer cylinder 1, and a cleaning device 3 is arranged on the outside of the screen cylinder 202.

[0027] Please refer to Figure 2 、 Figure 3 and Figure 4The screening device 2 also includes a gear ring 207 fixed to the outer surface of the screen drum 202, a fixed plate 208 is installed on the outer surface of the fixed drum 201 located above, a first motor 209 is fixed to the output end of the fixed plate 208, an active rod 210 is installed on the output end of the first motor 209, and two active gears 211 are installed on the outer surface of the active rod 210. The gear ring 207 is meshed with the active gear 211, and the active rod 210 can be driven to rotate by the output end of the first motor 209, thereby driving the active gear 211 to rotate. The rotation of the active gear 211 The gear ring 207 is driven to rotate and thus the screen drum 202 is driven to rotate. The cleaning device 3 includes a cleaning rod 301. A plurality of cleaning brushes 302 are fixed to the outer surface of the cleaning rod 301. A support plate 303 is fixed to the outer surface of the fixed drum 201. The cleaning rod 301 is rotatably connected to the support plate 303. A driven gear 304 is installed on the outer surface of the cleaning rod 301. The driven gear 304 is meshed with the driving gear 211. The rotation of the driving gear 211 can drive the driven gear 304 to rotate, and the rotation of the driven gear 304 can drive the cleaning rod 301 to rotate.

[0028] Please refer to Figure 2 、 Figure 3 and Figure 4 A high-pressure air pump 4 is installed at the top of the outer cylinder 1, and a ventilation pipe 5 is provided on the side of the sieve cylinder 202. A jet pipe 6 is installed on the outer surface of the ventilation pipe 5. The output end of the jet pipe 6 is aligned with the side of the sieve cylinder 202. The output end of the high-pressure air pump 4 is connected to the ventilation pipe 5 through a pipeline. The high-pressure air pump 4 drives the high-pressure gas to be ejected from the jet pipe 6 to clean the sieve holes of the sieve cylinder 202 to avoid blockage of the sieve holes. Brackets 7 are fixed at both ends of the ventilation pipe 5. The bracket 7 is fixed to the fixed cylinder 201. The stability of the ventilation pipe 5 can be maintained by the bracket 7.

[0029] Please refer to Figure 2 、 Figure 3 and Figure 4 A second motor 8 is installed at the top of the outer cylinder 1. The output end of the second motor 8 is fixed to the rotating rod 203. The output ends of the first motor 209 and the second motor 8 rotate in opposite directions. The output end of the second motor 8 can drive the rotation of the rotating rod 203 inside the sieve cylinder 202. A drain port 9 is provided on the outer surface of the bottom end of the outer cylinder 1. The drain port 9 is located directly below the fixed cylinder 201. The muddy water discharged from the sieve cylinder 202 can leave the outer cylinder 1 through the drain port 9. At the same time, the drain port 9 can stabilize the air pressure inside the sieve cylinder 202.

[0030] When the utility model is in use: the extracted sludge is put into the fixed cylinder 201 from the feed pipe 205, and then the first motor 209 and the second motor 8 are started, the output end of the first motor 209 drives the active rod 210 to rotate, the rotation of the active rod 210 drives the driving gear 211 to rotate, the rotation of the driving gear 211 drives the gear ring 207 to rotate, the rotation of the gear ring 207 drives the screen drum 202 to rotate, the output end of the second motor 8 drives the rotating rod 203 to rotate, the rotation of the rotating rod 203 drives the auger 204 to rotate, the rotation of the auger 204 lifts the sludge in the fixed cylinder 201 below, and in the process of sludge movement, mud and water leave the screen cylinder 202 through the sieve holes of the screen cylinder 202, and the sludge that has been separated from mud and water continues to move and leaves the outer cylinder 1 through the discharge pipe 206, thereby realizing the separation of mud and water in the sludge cleaning process.

[0031] At the same time, the rotation of the driving gear 211 can drive the driven gear 304 to rotate, and the rotation of the driven gear 304 can drive the cleaning rod 301 to rotate. The cleaning rod 301 rotates during the rotation of the screen drum 202 to clean the outer surface of the screen drum 202 once. The output end of the high-pressure air pump 4 is connected to the ventilation pipe 5 through a pipeline. The high-pressure air pump 4 drives the high-pressure gas to be ejected from the injection pipe 6 to perform a secondary cleaning on the sieve holes of the sieve drum 202 to avoid blockage of the sieve holes, thereby maintaining the normal operation of the sieve drum 202.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A river channel desilting device, comprising an outer cylinder (1), characterized in that: A screening device (2) is provided inside the outer cylinder (1), and the screening device (2) comprises a fixed cylinder (201) fixed to both ends of the inner wall of the outer cylinder (1), the inner wall of the fixed cylinder (201) is rotatably connected to a screen cylinder (202), a rotating rod (203) is provided inside the screen cylinder (202), an auger (204) is installed on the outer surface of the rotating rod (203), a feed pipe (205) is installed on the outer surface of the fixed cylinder (201) at the bottom end, the feed pipe (205) has an upward port and passes through the outer cylinder (1), a discharge pipe (206) is installed on the outer surface of the fixed cylinder (201) at the top end, the discharge pipe (206) has a downward port and passes through the outer cylinder (1), and a cleaning device (3) is provided on the outer side of the screen cylinder (202).

2. A river channel desilting device according to claim 1, characterized in that: The screening device (2) further comprises a gear ring (207) fixed to the outer surface of the screen cylinder (202); a fixing plate (208) is installed on the outer surface of the fixing cylinder (201) located above; a first motor (209) is fixed to the output end of the fixing plate (208); an active rod (210) is installed at the output end of the first motor (209); two active gears (211) are installed on the outer surface of the active rod (210); the gear ring (207) is meshed with the active gears (211).

3. A river channel desilting device according to claim 2, characterized in that: The cleaning device (3) comprises a cleaning rod (301), a plurality of cleaning brushes (302) are fixed on the outer surface of the cleaning rod (301), a support plate (303) is fixed on the outer surface of the fixed cylinder (201), the cleaning rod (301) and the support plate (303) are rotatably connected, and a driven gear (304) is installed on the outer surface of the cleaning rod (301), and the driven gear (304) is meshed with the driving gear (211).

4. A river dredging device according to claim 1, characterized in that: A high-pressure air pump (4) is installed at the top end of the outer cylinder (1), a vent pipe (5) is provided on the side of the sieve cylinder (202), an air jet pipe (6) is installed on the outer surface of the air jet pipe (5), the output end of the air jet pipe (6) is aligned with the side of the sieve cylinder (202), and the output end of the high-pressure air pump (4) is connected to the air jet pipe (5) through a pipeline.

5. A river channel desilting device according to claim 4, characterized in that: Brackets (7) are fixed to both left and right ends of the vent pipe (5), and the brackets (7) are fixed to the fixing cylinder (201).

6. A river channel desilting device according to claim 2, characterized in that: A second motor (8) is installed at the top end of the outer cylinder (1), the output end of the second motor (8) is fixed to the rotating rod (203), and the output ends of the first motor (209) and the second motor (8) rotate in opposite directions.

7. The river channel desilting device according to claim 1, characterized in that: A drainage port (9) is provided on the outer surface of the bottom end of the outer cylinder (1), and the drainage port (9) is located directly below the fixed cylinder (201).

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