Patent ID: 11872608
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A method of removing sludge from a sewage treatment plant effluent piping system, wherein the effluent piping system includes a conveying pipe 11 connected to a sewage treatment plant 2, a distributing pipe 12 connected at one end to the conveying pipe 11 and extending along ground beneath a body of water, and a plurality of standpipes 13 disposed at intervals along the length of the distributing pipe 12, the opposing end of the distributing pipe 12 inclined upwardly, exposed above the ground and beneath the surface of the body of water, and including an opening 14, the method comprising the steps of:
driving the ends of a plurality of support columns into the ground beneath the body of water and ceasing the driving while the opposing ends of the support columns are still above the body of the water, the plurality of support columns encircling a work area of the body of water about the opening 14 of the distributing pipe 12;
placing a work platform upon the opposing ends of the support columns that are still above the body of the water;
placing a drilling system including at least a drill bit 351 and a plurality of drill pipes 352, upon the work platform;
positioning the drilling system on the work platform such that the drill bit 351 is capable of passing through opening 14 and passing into distributing pipe 12, the positioning taking into account, a drilling angle, drilling distance, drilling depth, drilling curvature, and a target drilling length distance;
deploying an induction coil assembly above the distributing pipe 12 with a diver or deepwater deployment equipment;
disposing at least two pieces of lifting equipment upon the work platform, the at least two pieces of lifting equipment being capable of together lifting a conveying bracket into and out of the water;
guiding a drill bit from the work platform into the opening 14 at the end of the underwater distributing pipe 12 by engaging the conveying bracket, and each time the drill bit advances a predetermined distance, a piece of drill pipe is connected to the rear of the drill bit;
activating the drilling system, causing waste to exit the distributing pipe;
detecting a position of the drill bit and plurality of drill pipes within the distributing pipe with the induction coil assembly;
controlling the drill bit based on data transmitted as a result of the induction coil assembly; and
collecting the waste generated by drilling.