Feces pumping and discharging system

Abstract

A system for extracting and discharging fecal sludge, including: a pneumatic pressure conveyor, the pneumatic pressure conveyor including an air inlet and an air outlet; a pipe tee; a first two-position three-way valve; a second two-position three-way valve; and a plurality of connecting pipes, the pipes including an air vent pipe. The pneumatic pressure conveyor, the air inlet thereof, the air outlet thereof, the pipe tee, the second two-position three-way valve, and the first two-position three-way valve are connected via the connecting pipes to form a loop. The pipe tee is disposed close to the air inlet of the pneumatic pressure conveyor, and one port of the pipe tee not enclosed in the loop functions as an air inlet end of the pneumatic pressure conveyor.

The invention claimed is: 
     
         1 . A system for extracting and discharging fecal sludge, the system comprising:
 a) a truck body, the truck body comprising a rear and two sides;   b) a carrying tank, the carrying tank comprising an inner cavity, a top, and a bottom comprising a fecal sludge outlet;   c) a fecal extraction pipe;   d) a fecal discharge valve;   e) an observation widow or an observation tube;   f) an anti-overflow device;   g) a transmission shaft;   h) a power take-off;   i) an alarm device, the alarm device operating to warn a full-load of the fecal sludge;   j) a pneumatic pressure conveyor, the pneumatic pressure conveyor comprising an air inlet and an air outlet;   k) a pipe tee;   l) a first two-position three-way valve;   m) a second two-position three-way valve; and   n) a plurality of connecting pipes;   
       wherein
 the pneumatic pressure conveyor, the air inlet thereof, the air outlet thereof, the pipe tee, the second two-position three-way valve, and the first two-position three-way valve are connected via the connecting pipes to form a loop; 
 the pipe tee is disposed close to the air inlet of the pneumatic pressure conveyor, and one port of the pipe tee not enclosed in the loop functions as an air inlet end of the pneumatic pressure conveyor; 
 the second two-position three-way valve is disposed close to the air outlet of the pneumatic pressure conveyor, and one end of the second two-position three-way valve not enclosed in the loop is connected to an air vent pipe; a free end of the air vent pipe functions as an air outlet end of the pneumatic pressure conveyor; and the air outlet end of the pneumatic pressure conveyor is fixed on the rear or either side of the truck body; 
 the air outlet end of the pneumatic pressure conveyor is connected to the air vent pipe; 
 one end of the first two-position three-way valve not enclosed in the loop communicates with the inner cavity of the carrying tank from the top thereof via the connecting pipe; and 
 the top of the carrying tank is provided with the fecal extraction pipe communicating with the carrying tank, and the fecal sludge outlet is arranged at the bottom of the carrying tank. 
 
     
     
         2 . A system for extracting and discharging fecal sludge, the system comprising:
 a) a pneumatic pressure conveyor, the pneumatic pressure conveyor comprising an air inlet and an air outlet;   b) a plurality of shut-off valves, the shut-off valves comprising a first shut-off valve and a third shut-off valve;   c) a carrying tank, the carrying tank comprising a fecal sludge outlet; and   d) a plurality of connecting pipes, the connecting pipes comprising an air inlet pipe, a first pipe, and an air vent pipe;   
       wherein
 the carrying tank communicates with a fecal storage device; 
 the air inlet pipe is connected to the air inlet of the pneumatic pressure conveyor; 
 one end of the air vent pipe is connected to the air outlet of the pneumatic pressure conveyor, and the other end of the air vent pipe is connected with the fecal storage device; 
 the first shut-off valve is disposed on the first pipe; one end of the first pipe is connected to the air inlet pipe, the other end of the first pipe is connected to the carrying tank; and 
 the third shut-off valve is disposed on the air vent pipe. 
 
     
     
         3 . The system of  claim 2 , further comprising: a second pipe comprising two ends, and a second shut-off valve; wherein the second shut-off valve is arranged on the second pipe; and one end of the second pipe is connected to the air vent pipe, and the other end of the second pipe is connected to the first pipe. 
     
     
         4 . The system of  claim 2 , wherein the pneumatic pressure conveyor comprises the air inlet and the air outlet; the air inlet is connected to the air inlet pipe, and the air outlet is connected to the air vent pipe. 
     
     
         5 . The system of  claim 2 , wherein the connecting pipes comprise a fecal extraction pipe comprising two ends; one end of the fecal extraction pipe is connected to the top of the carrying tank, and the other end of the fecal extraction pipe is connected to the fecal storage device. 
     
     
         6 . The system of  claim 5 , wherein a check valve is arranged at a joint between the inner cavity of the carrying tank and the fecal extraction pipe. 
     
     
         7 . The system of  claim 2 , wherein a first end of the first pipe is arranged on the air inlet pipe via a first pipe tee; and two ends of the first pipe are connected to two ends of the air inlet pipe, respectively. 
     
     
         8 . The system of  claim 2 , wherein a first end of the second pipe is connected to the air vent pipe via a second pipe tee, and a second end of the second pipe is connected to the first pipe via a third pipe tee. 
     
     
         9 . The system of  claim 2 , wherein the carrying tank is a closed container. 
     
     
         10 . The system of  claim 2 , wherein the carrying tank is provided with an anti-overflow device, an observation widow or an observation tube, a transmission shaft, a power take-off, and an alarm device for warning a full-load of the fecal sludge. 
     
     
         11 . A system for extracting and discharging fecal sludge, the system comprising:
 a) a carrying tank;   b) a pneumatic pressure conveyor;   c) a pipe tee;   d) a connecting pipe;   e) control valves, the control valves comprising a two-position three-valve and a shut-off valve;   f) at least one path controlled by the control valves for connecting an inner cavity of the carrying tank and an air inlet of the pneumatic pressure conveyor;   g) at least one path controlled by the control valves for connecting the inner cavity of the carrying tank and an air outlet of the pneumatic pressure conveyor; and   h) at least one path controlled by the control valves for connecting the air outlet end of the pneumatic pressure conveyor and output pressured air.   
     
     
         12 . The system of  claim 11 , wherein
 a connecting channel between the inner cavity of the carrying tank and the air inlet of the pneumatic pressure conveyor is formed by a series connection of a first end and a second end of the two-position three-valve, and a third port and a second port of the first pipe tee via the connecting pipe;   a connecting channel between the inner cavity of the carrying tank and the air outlet of the pneumatic pressure conveyor is formed by a series connection of the second end and a third end of the two-position three-way valve, a third port and a first port of the second pipe tee via the connecting pipe;   an air inlet channel of the system is formed by connecting the air inlet of the pneumatic pressure conveyor and a second port and the first port of the first pipe tee via the connecting pipe; and   an air outlet channel of the system is formed by connecting the air outlet of the pneumatic pressure conveyor, the first port and the second port of the second pipe tee, a first end of the shut-off valve via the connecting pipe.   
     
     
         13 . The system of  claim 12 , wherein
 an air outlet end of the air outlet channel is formed by the second end of the shut-off valve or by a free end of an air vent pipe connected to the second end of the shut-off valve;   the connecting channel between the inner cavity of the carrying tank and the air inlet of the pneumatic pressure conveyor is formed by a series connection of a second port and a first port of the second pipe tee, a second end and the first end of the shut-off valve, and the third port and the second port of the first pipe tee via the connecting pipe;   the connecting channel between the inner cavity of the carrying tank and the air outlet of the pneumatic pressure conveyor is formed by a series connection of the second port and the third port of the second pipe tee, and the third end and the first end of the two-position three-way valve via the connecting pipe;   the air inlet channel of the system is formed by connecting the air inlet of the pneumatic pressure conveyor and the second port and the first port of the first pipe tee via the connecting pipe; and   an air outlet channel of the system is formed by connecting the air outlet of the pneumatic pressure conveyor and the first end and the second end of the two-position three-valve via the connecting pipe.   
     
     
         14 . The system of  claim 13 , wherein the air outlet end of the system is formed by the second end of the shut-off valve or by the free end of the air vent pipe connected to the second end of the shut-off valve. 
     
     
         15 . The system of  claim 13 , wherein the air inlet of the system is formed by the first port of the first pipe tee or by a free end of an air inlet pipe connected to the first port of the first pipe tee. 
     
     
         16 . The system of  claim 13 , wherein the air inlet of the system is provided with an air filtration device; and the two-position three-way valve and the shut-off valve are manual valves or automatic control valves. 
     
     
         17 . The system of  claim 13 , wherein the carrying tank is provided with a fecal sludge outlet and a fecal discharge valve disposed on the fecal sludge outlet for controlling the opening and closing of the fecal sludge outlet. 
     
     
         18 . The system of  claim 13 , wherein the carrying tank is provided with an anti-overflow device, an observation window, observation tube, or an alarm device for warning a full-load of the fecal sludge. 
     
     
         19 . The system of  claim 13 , further comprising a transmission shaft and a power take-off; wherein the pneumatic pressure conveyor employs the transmission shaft and the power take-off to obtain a driving force for a power device equipped by a transporter of the system of the system. 
     
     
         20 . The system of  claim 13 , wherein
 the pneumatic pressure conveyor is driven by a motor, and a power device is mounted on a transporter of the system for providing driving energy for the motor; or   the pneumatic pressure conveyor is driven by the motor, and the driving energy of the motor is provided by an electric system independent to the transporter of the system.