Travelling crane type sand sucker

Abstract

The utility model discloses a travelling crane type sand sucker which comprises a movable working bridge, a sand sucking assembly, at least one stirring assembly and a control unit, and the sand sucking assembly, the at least one stirring assembly and the control unit are all arranged on the movable working bridge. At least one stirring assembly is additionally arranged to cope with the conditions that a traveling crane cannot walk and sand suction is difficult due to the fact that a sand layer is too thick. Under the conditions, the stirring device is started to slowly stir the mud and sand at the bottom of the pond, so that the mud and sand are mixed with water, and the hardening phenomenon is broken; therefore, mud and sand can be effectively and quickly sucked and discharged, and normal operation and maintenance of the aerated grit chamber are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a travelling crane type sand suction machine. BACKGROUND

[0002] The aeration grit chamber is a long channel, and an aeration device is installed at a distance of 60-90 cm from the bottom of the chamber along the whole length of the side wall of the channel, and a grit collecting hopper is arranged below. The bottom of the chamber is designed with a slope of i=0.1-0.5 to ensure that the sand particles can smoothly slide into the grit collecting hopper.

[0003] Due to the aeration effect, the organic particles in the wastewater are often kept in a suspended state, and the sand particles are rubbed against each other under the shearing force of aeration, thereby removing the organic pollutants attached to the sand particles, which helps to obtain relatively pure sand particles. Under the centrifugal force of the cyclone, the sand particles with a higher density are thrown to the wall of the chamber and sink into the grit collecting hopper, while the organic matter with a lower density flows forward with the water flow and is taken to the next treatment unit.

[0004] The travelling crane type sand suction machine is usually used to remove the grit in the aeration grit chamber, and it is composed of a travelling device, a travelling beam, a grit removal device, a sand suction pump, a sand-water separator, a power line and signal line winding and unwinding device, etc. However, if the existing travelling crane type sand suction machine is not operated for a long time and the amount of grit is large, the sand layer is thick and hard, which can cause the travelling crane to be unable to travel, the sand to be unable to be sucked, and the sludge to be unable to be discharged smoothly. SUMMARY

[0005] The utility model aims at providing a travelling crane type sand suction machine.

[0006] The technical scheme of the utility model is as follows:

[0007] A travelling crane type sand suction machine, comprising:

[0008] A movable working bridge is used to displace from the aeration grit chamber to the upper position;

[0009] A sand suction assembly is used to suck the sludge in the aeration grit chamber;

[0010] At least one stirring assembly, wherein each stirring assembly comprises a stirring paddle, a stirring rod, a speed reducer and a driving motor, one end of the stirring rod is provided with the stirring paddle and extends into the aeration grit chamber so that the stirring paddle is close to the bottom of the aeration grit chamber, and the other end of the stirring rod is drivingly connected to the driving motor through the speed reducer;

[0011] A control unit is in electrical connection with the driving motor of the movable working bridge, the sand suction assembly and the at least one stirring assembly;

[0012] The sand suction assembly, the at least one stirring assembly and the control unit are all arranged on the movable working bridge.

[0013] In an optimal embodiment of the utility model, the sand suction assembly comprises a plurality of sand suction pipes, a plurality of sand suction pumps, a plurality of sand discharge pipes and a sand discharge main pipe, the plurality of sand suction pipes, the plurality of sand suction pumps and the plurality of sand discharge pipes are in one-to-one correspondence, one end of the sand suction pipe extends into the sand trap and is close to the bottom of the sand trap, the other end is communicated with the inlet of the sand suction pump, the outlet of the sand suction pump is communicated with one end of the sand discharge pipe, and the other end of the sand discharge pipe is communicated with the sand discharge main pipe.

[0014] Further preferably, the movable working bridge has a working bridge body and a displacement device arranged on the working bridge body, and the working bridge body can be displaced along the rails arranged at the edge of the sand trap under the drive of the displacement device.

[0015] More preferably, the sand suction assembly, the control unit and the at least one stirring assembly are arranged on the working bridge body.

[0016] Still more preferably, the bottom surface of the working bridge body is provided with a mounting bracket for arranging the plurality of sand suction pumps.

[0017] The utility model has the advantages of:

[0018] 1. The utility model adds at least one stirring assembly to cope with the situation that the sand layer is too thick to cause the trolley to be unable to walk and the sand suction to be difficult. Under these circumstances, the mud sand at the bottom of the pool can be slowly stirred by starting the stirring device, so that it is mixed with water, thereby breaking the hardening phenomenon. In this way, the mud sand can be effectively sucked and discharged quickly, ensuring the normal operation and maintenance of the sand trap.

[0019] 2. The utility model is suitable for transforming the existing trolley type sand suction machine, and the transformation cycle is short. DRAWINGS

[0020] Figure 1 The utility model is a structural schematic view. CONCRETE IMPLEMENTING METHOD

[0021] The technical scheme of the utility model will be further described and explained in the following concrete implementing method in combination with the drawings.

[0022] As shown in the drawings, Figure 1 A trolley type sand suction machine comprises a movable working bridge 1, a sand suction assembly 2, at least one stirring assembly 3 and a control unit 4.

[0023] The movable working bridge 1 is used to be displaced on the sand trap 5 and has a working bridge body 10 and a displacement device 11 arranged on the working bridge body 10, and the working bridge body 10 can be displaced along the rails 50 arranged at the edge of the sand trap 5 under the drive of the displacement device 11.

[0024] The sand suction assembly 2 for sucking the sand in the aeration grit chamber 5 comprises a plurality of sand suction pipes 20, a plurality of sand suction pumps 21, a plurality of sand discharge pipes 22 and a sand discharge main pipe 23, the plurality of sand suction pipes 20, the plurality of sand suction pumps 21 and the plurality of sand discharge pipes 22 are in one-to-one correspondence, one end of the sand suction pipe 20 extends into the aeration grit chamber 5 and is close to the bottom of the aeration grit chamber 5, the other end is communicated with the inlet of the sand suction pump 21, the outlet of the sand suction pump 21 is communicated with one end of the sand discharge pipe 22, the other end of the sand discharge pipe 22 is communicated with the sand discharge main pipe 23; the bottom surface of the working bridge body 10 is provided with a mounting bracket 101 for mounting the plurality of sand suction pumps 21.

[0025] At least one stirring assembly 3, wherein each stirring assembly 3 comprises a stirring paddle 31, a stirring rod 32, a speed reducer 33 and a driving motor 34, one end of the stirring rod 32 is provided with the stirring paddle 31 and extends into the aeration grit chamber 5 so that the stirring paddle 31 is close to the bottom of the aeration grit chamber 5, and the other end of the stirring rod 32 is drivingly connected to the driving motor 34 through the speed reducer 33. The at least one stirring assembly 3 can deal with the situation that the sand layer is too thick to cause the traveling vehicle to be unable to travel and the sand to be difficult to be sucked. In these situations, by starting the at least one stirring assembly 3, the mud and sand at the bottom of the aeration grit chamber 5 can be slowly stirred to mix with water, thereby breaking the hardening phenomenon; in this way, the mud and sand can be effectively sucked and discharged quickly, and the normal operation and maintenance of the aeration grit chamber 5 are ensured.

[0026] The control unit 4 is electrically connected with the displacement device 11 of the movable working bridge 1, the plurality of sand suction pumps 21 of the sand suction assembly 2 and the driving motor 34 of the at least one stirring assembly 3, and the sand suction assembly 2, the at least one stirring assembly 3 and the control unit 4 are all mounted on the working bridge body 10 of the movable working bridge 1. A slide wire device 51 as a power supply unit of the whole machine is arranged on the side of the sand aeration tank. It can be seen that the utility model is suitable for transforming the existing traveling vehicle type sand suction machine, the transformation period is short, and the cost is low.

[0027] The above is only a preferred embodiment of the utility model, and therefore cannot limit the range of the utility model implementation, that is, equivalent changes and modifications made according to the utility model patent range and specification content should still be within the scope covered by the utility model.

Claims

1. A travelling suction dredger, characterized in that: The utility model relates to a sand suction device for aerated grit chamber, which comprises: a movable working bridge for moving on the upper part of the aerated grit chamber; a sand suction assembly for sucking the sludge in the aerated grit chamber; at least one stirring assembly, wherein each stirring assembly comprises a stirring paddle, a stirring rod, a speed reducer and a driving motor, one end of the stirring rod is provided with the stirring paddle and extends into the aerated grit chamber so that the stirring paddle is close to the bottom of the aerated grit chamber, and the other end of the stirring rod is connected to the driving motor through the speed reducer; a control unit which is in electrical connection with the driving motor of the movable working bridge, the sand suction assembly and the at least one stirring assembly, and is installed on the movable working bridge.

2. A travelling suction dredger as claimed in claim 1, characterized in that: The sand suction assembly comprises a plurality of sand suction pipes, a plurality of sand suction pumps, a plurality of sand discharge pipes and a main sand discharge pipe, the plurality of sand suction pipes, the plurality of sand suction pumps and the plurality of sand discharge pipes are in one-to-one correspondence, one end of each sand suction pipe extends into the aerated grit chamber and is close to the bottom of the aerated grit chamber, the other end of each sand suction pipe is connected to the inlet of a sand suction pump, the outlet of each sand suction pump is connected to one end of a sand discharge pipe, and the other end of each sand discharge pipe is connected to the main sand discharge pipe; the control unit is in electrical connection with the plurality of sand suction pumps.

3. A travelling suction dredger as claimed in claim 2, characterized in that: The movable working bridge has a working bridge body and a displacement device installed on the working bridge body, the working bridge body can be moved along the rails arranged on the edge of the aerated grit chamber under the driving of the displacement device; the control unit is in electrical connection with the displacement device.

4. A travelling suction dredger as claimed in claim 3, characterized in that: The sand suction assembly, the control unit and the at least one stirring assembly are all installed on the working bridge body.

5. A travelling suction dredger as claimed in claim 4, characterized in that: The bottom surface of the working bridge body is provided with a mounting bracket for installing the plurality of sand suction pumps.

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