CN210032070U

CN210032070U - Municipal drainage engineering mud well dredging device

Info

Publication number: CN210032070U
Application number: CN201920703574.3U
Authority: CN
Inventors: 张智泳; 裴宏旭; 白旭
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-02-07
Anticipated expiration: 2029-05-16

Abstract

The utility model provides a dredging device for a municipal drainage engineering mud pit, which comprises a conical filter screen arranged at a well head, wherein a net sheet of the conical filter screen is of a detachable structure; the lower part of the conical filter screen is provided with a sewer pipe which extends into a downstream pipeline along the well wall; a circulating water pump is installed in the mud sinking well, a suction pipe is installed on the left side of the circulating water pump, and an upper water pipe is installed on the right side of the circulating water pump; the bottom end of the shaft suction pipe is arranged at the bottom of the well; the water feeding pipe extends upwards along the wall of the well and a top pipe orifice is arranged above the conical filter screen; circulation suction pump bottom still is equipped with the stirring rake, during stirring rake helical blade explored into the silt residue after the shaft bottom deposits, this device easy operation, it is fast to ann tear open, and corollary equipment can have enough to meet the need long-term use, guarantees promptly that silt clearly draws the effect and clearance operating time is short, fast, greatly reduced later stage road administration maintenance cost and the sewage blocking scheduling problem of in-process appear, replaced artifical construction operation of going into the well, avoided the appearance of potential safety hazard.

Description

Municipal drainage engineering mud well dredging device

Technical Field

The utility model belongs to mud well drainage engineering is followed in the municipal administration, concretely relates to device of cycle desilting of silt deposit inspection shaft.

Background

The sewage sludge trap is used for collecting solid sediments in the pipeline and preventing the pipeline from being partially blocked, so that the whole pipeline is blocked.

① when the depth of the mud well is shallow, the mud amount reaches the reserved thickness, a sewage suction truck is used for sewage suction treatment, the existing treatment mode of the sewage suction truck is to contain sewage and mud in a canning mode, a sewage suction pipeline extends into the bottom of an inspection well for sewage suction, the bottom of the inspection well is in an invisible environment during cleaning operation of the sewage suction truck, the control difficulty is high, and the operability is poor. ② when the depth of the mud well is deep, the length of the sewage suction pipeline of the sewage suction truck is limited, the sewage suction truck can only suck sewage within a distance of ten meters, the lowering height is within 6 meters, and then the condition that the sewage suction pipe cannot reach the bottom of the well often occurs, so that the normal construction of the sewage suction truck cannot be carried out, and a professional needs to be allocated to carry out manual maintenance and cleaning on the bottom of the well.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that among the prior art the soil pick-up car carries out the problem that the desilting clearance of open caisson is not thorough or can't realize the clearance.

The technical means adopted for solving the technical problems are as follows:

a dredging device for a municipal drainage engineering mud-sinking well comprises a conical filter screen arranged at a well mouth, wherein a net piece of the conical filter screen is of a detachable structure; the lower part of the conical filter screen is provided with a sewer pipe which extends into a downstream pipeline along the well wall; a circulating water pump is installed in the mud sinking well, a suction pipe is installed on the left side of the circulating water pump, and an upper water pipe is installed on the right side of the circulating water pump; the bottom end of the shaft suction pipe is arranged at the bottom of the well; the water feeding pipe extends upwards along the wall of the well and a top pipe orifice is arranged above the conical filter screen; the bottom of the circulating water pump is also provided with a stirring paddle, and a helical blade of the stirring paddle extends into sludge residues precipitated at the bottom of the well.

Preferably, the lower end of the shaft suction pipe is 5cm away from the bottom of the well;

specifically, the top of the paddle shaft of the stirring paddle is in gear transmission with a rotation supply motor of the circulating water suction pump.

This device easy operation, ann tears fast open, and corollary equipment can have enough to meet the need long-term use, guarantees promptly that silt is clearly drawn the effect and the clearance operating time is short, fast, greatly reduced later stage road administration maintenance cost and the sewage of in-process blocks up the scheduling problem and appears, replaces artifical construction operation of going into the well, avoids the appearance of potential safety hazard.

Drawings

FIG. 1 is an overall view of the apparatus of the present invention;

FIG. 2 is a view of a conical filter screen;

fig. 3 is a schematic diagram of a driving structure of the stirring paddle.

In the figure, a well wall 1, a conical filter screen 2, a downcomer 3, an upper water pipe 4, an upper water pipe orifice 5, a circulating water pump 6, a suction pipe 7, a stirring paddle 8, a downstream pipeline 9 and a net piece 101.

Detailed Description

Along with the continuous improvement of people's standard of living, the continuous healthy and strong of life corollary equipment, also progressively improving engineering quality's requirement and cognition, the utility model discloses the processing to mud sinking well among the sewage inspection shaft should also take reasonable efficient method to handle and clearly draw to can follow bad formula equipment and replace traditional technology, improve the clear effect of drawing of silt, prevent that the pipeline from blocking up, make mechanical equipment replace manual work completely, reduce artifical well descending frequency, guarantee workman safety work environment, reduce later maintenance cost and sewage jam problem and take place.

As shown in fig. 1-3, a dredging device for a municipal drainage engineering mud pit: the device comprises a conical filter screen 2 arranged at a wellhead position, wherein a net piece 101 of the conical filter screen 2 is of a detachable structure; the lower part of the conical filter screen 2 is provided with a downcomer 3, and the downcomer 3 extends into a downstream pipeline 9 along the well wall 1; a circulating water pump 6 is installed in the mud sinking well, a suction pipe 7 is installed on the left side of the circulating water pump 6, and an upper water pipe 4 is installed on the right side of the circulating water pump; the lower end of the shaft suction pipe 7 is arranged at the bottom of the well; the water feeding pipe 4 extends upwards along the well wall 1, and the top nozzle 5 is arranged above the conical filter screen mesh 101; and the bottom of the circulating water pump 6 is also provided with a stirring paddle 8, and a helical blade of the stirring paddle 8 extends into sludge residues after bottom precipitation.

The top of the paddle shaft of the stirring paddle 8 is in gear transmission with a rotation supply motor of the circulating water pump 1.

Preferably, the lower end of the shaft suction pipe 7 is 5cm from the bottom of the well.

The dredging method by adopting the municipal drainage engineering sludge caisson dredging device comprises the following steps:

① checking whether the device is fully installed;

② checking whether the conical detachable filter screen is fixed;

③ turning on the power supply, starting the circulation water pump to operate, and sucking the sludge from the suction pipe to the water supply pipe;

④ passing through the suction pipe, the water supply pipe to the conical filter screen, the filter screen filtering silt and dirt, and then passing through the water discharge pipe to circulate back to the mud well;

⑤ when the filter screen filters sludge, the power is cut off and a new filter screen is replaced;

⑥ after the mud has no sludge residue, the power supply can be cut off to complete the dredging operation of one mud trap;

⑦ recovering the filter screen, treating uniformly, and periodically putting into use again after being washed again.

In the dredging operation, the stirring paddle is operated simultaneously in the circulating dredging process, so that the settled sludge residue is in a floating free state, and the residue and the water are uniform and then are sucked into the water feeding pipe together.

The standard of filter screen replacement is that the sludge coverage area of the filter screen reaches 70 percent, and sewage can not smoothly flow into a sewer pipe.

The construction method is simple to operate, fast in mounting and dismounting speed, and the matched equipment can be used for a long time in a circulating mode, so that the sludge cleaning effect is guaranteed, the cleaning working time is short, the speed is fast, the later-stage road administration maintenance cost and the problems of sewage blockage and the like in the process are greatly reduced, manual well descending construction operation is replaced, and the potential safety hazard is avoided.

Claims

1. The utility model provides a municipal drainage engineering mud pit desilting device, characterized by: the filter comprises a conical filter screen arranged at a wellhead, wherein a net sheet of the conical filter screen is of a detachable structure; the lower part of the conical filter screen is provided with a sewer pipe which extends into a downstream pipeline along the well wall; a circulating water pump is installed in the mud sinking well, a suction pipe is installed on the left side of the circulating water pump, and an upper water pipe is installed on the right side of the circulating water pump; the bottom end of the shaft suction pipe is arranged at the bottom of the well; the water feeding pipe extends upwards along the wall of the well and a top pipe orifice is arranged above the conical filter screen; and the bottom of the circulating water pump is also provided with a stirring paddle, and a helical blade of the stirring paddle extends into sludge residues after bottom precipitation.

2. The municipal drainage engineering mud pit dredging device of claim 1, which is characterized in that: the lower end of the shaft suction pipe is 5cm away from the bottom of the well.

3. The municipal drainage engineering mud pit dredging device of claim 1, which is characterized in that: the top of the paddle shaft of the stirring paddle is in gear transmission with a rotation supply motor of the circulating water pump.