CN-224212542-U - Tunnel sewage integration zero release processing apparatus

CN224212542UCN 224212542 UCN224212542 UCN 224212542UCN-224212542-U

Abstract

The utility model relates to a tunnel sewage integrated zero-emission treatment device, and belongs to the technical field of sewage treatment. The treatment unit comprises a treatment tank, wherein the treatment tank is independently provided with a magnetic coagulation reaction area, a magnetic separation sedimentation area and a fiber rotary disc filtering area from top to bottom, the magnetic coagulation reaction area is communicated with a pretreatment unit, a sludge outlet of the fiber rotary disc filtering area is communicated with a sludge concentration tank, a dosing mechanism is arranged at the top of the treatment tank and is communicated with the magnetic coagulation reaction area, an electromagnetic separator is arranged at the bottom of the magnetic separation sedimentation area, an electromagnetic outlet of the electromagnetic separator is connected with the dosing mechanism through a screw conveyor, a sludge outlet of the electromagnetic separator is connected with the sludge concentration tank, and a fiber rotary disc mechanism is arranged in the fiber rotary disc filtering area. The utility model has the advantages of high efficiency, energy saving, greatly shortened sedimentation time by magnetic coagulation, low-pressure operation by fiber turntable filtration and low comprehensive energy consumption.

Inventors

FU HAIBIN
FU JING
ZHAO JUN
SONG ZHIJIAN
FU ZHONGYANG
Hou Jiaguang
JIA LICHAO
ZHANG ZHIBIN
ZHANG SHENGJIE
ZHU ZHILIANG
ZHANG ZEFENG

Assignees

中铁三局集团有限公司
中铁三局集团第五工程有限公司

Dates

Publication Date: 20260508
Application Date: 20250519

Claims (9)

1. The tunnel sewage integrated zero-emission treatment device comprises a pretreatment unit for intercepting large-particle impurities in sewage, a treatment unit for treating the sewage and a sludge concentration tank for treating sludge, wherein the outlet end of the pretreatment unit is connected with the inlet end of the treatment unit, the sludge concentration tank is connected with the sludge outlet of the treatment unit, The treatment unit comprises a treatment tank, wherein the treatment tank is independently provided with a magnetic coagulation reaction zone, a magnetic separation sedimentation zone and a fiber rotary disc filtering zone from top to bottom, the magnetic coagulation reaction zone is communicated with the pretreatment unit, and a sludge outlet of the fiber rotary disc filtering zone is communicated with the sludge concentration tank; The dosing mechanism is arranged at the top of the treatment tank and is communicated with the magnetic coagulation reaction zone; The electromagnetic separator is arranged at the bottom of the magnetic separation sedimentation zone, an electromagnetic outlet of the electromagnetic separator is connected with the dosing mechanism through a screw conveyor, and a sludge outlet of the electromagnetic separator is connected with the sludge concentration tank; the fiber rotary table mechanism is arranged in the fiber rotary table filtering area.
2. The tunnel sewage integrated zero-emission treatment device according to claim 1, wherein a stirring mechanism is further arranged in the magnetic coagulation reaction zone, and the stirring mechanism comprises a first driving motor and a first stirring shaft; The first driving motor is positioned at the top of the treatment tank and is fixedly arranged on the treatment tank, the first end of the first stirring shaft is in driving connection with the driving end of the first driving motor, the second end of the first stirring shaft penetrates through the top wall of the treatment tank and is positioned in the magnetic coagulation reaction zone, the first stirring shaft is in rotary connection with the top wall of the treatment tank, and a stirring blade group is arranged on the outer surface of the first stirring shaft.
3. The tunnel sewage integrated zero-emission treatment device according to claim 2, wherein the stirring blade group comprises a paddle stirring blade group and a frame stirring blade group, and the paddle stirring blade group and the frame stirring blade group are sequentially arranged on the outer surface of the first stirring shaft from top to bottom.
4. The tunnel sewage integrated zero-emission treatment device according to claim 1, wherein the magnetic separation sedimentation zone comprises a sedimentation chamber and a buffer chamber, the buffer chamber is arranged on one side of the sedimentation chamber, the top end of the buffer chamber is communicated with the magnetic coagulation reaction zone, the bottom end of the buffer chamber is communicated with the sedimentation chamber, and the top of the sedimentation chamber is communicated with the fiber turntable filtering zone through a pipeline; the electromagnetic separator is arranged at the bottom of the sedimentation cavity.
5. The tunnel sewage integrated zero-emission treatment device according to claim 4, wherein the sedimentation cavity comprises an overflow weir area, an inclined plate area and a conical sludge collecting area which are sequentially communicated from top to bottom; The electromagnetic separator is arranged at the center of the bottom of the conical mud collecting area, a plurality of sloping plates are uniformly arranged in the sloping plate area, the overflow weir area is provided with an overflow weir, and one end of the overflow weir is provided with a water outlet and is communicated with the fiber turntable filtering area.
6. The tunnel sewage integrated zero-emission treatment device according to claim 4, wherein a plurality of guide plates are obliquely arranged in the buffer cavity.
7. The tunnel sewage integrated zero-emission treatment device according to claim 1, wherein the fiber turntable filtering area is divided into a dispersion chamber and a filtering chamber by a partition plate, the dispersion chamber is positioned above the filtering chamber, the partition plate is provided with a plurality of water outlet holes, and the fiber turntable mechanism is arranged on the filtering chamber.
8. The tunnel sewage integrated zero-emission treatment device according to claim 7, wherein the fiber rotating disc mechanism comprises a second driving motor and a first rotating shaft; The second driving motor is positioned at the bottom of the treatment tank and is fixedly arranged on the treatment tank, the first end of the first rotating shaft is in driving connection with the driving end of the second driving motor, the second end of the first rotating shaft penetrates through the top wall of the treatment tank and is positioned in the filtering chamber, the first rotating shaft is in rotating connection with the bottom wall of the treatment tank, and a plurality of groups of fiber filtering discs are arranged on the outer surface of the first rotating shaft.
9. The tunnel sewage integrated zero-emission treatment device according to claim 8, wherein a negative pressure suction back flushing mechanism is further arranged at the bottom of the fiber rotary disc filtering area, and the negative pressure suction back flushing mechanism is connected with the sludge concentration tank through a pipeline.

Description

Tunnel sewage integration zero release processing apparatus Technical Field The utility model relates to the technical field of sewage treatment, in particular to a tunnel sewage integrated zero-emission treatment device. Background With increasingly strict environmental protection requirements, sewage generated in the tunnel construction and operation process needs to be treated efficiently and zero emission is realized. The traditional sewage treatment device has the problems of low treatment efficiency, large occupied area, low automation degree and the like, and is difficult to meet the treatment requirements of tunnel sewage. Therefore, development of a novel sewage treatment device which is efficient, intensive and sustainable is needed. Disclosure of utility model In order to achieve the above purpose, the present utility model adopts the following technical scheme: The tunnel sewage integrated zero-emission treatment device comprises a pretreatment unit for intercepting large-particle impurities in sewage, a treatment unit for treating the sewage and a sludge concentration tank for treating sludge, wherein the outlet end of the pretreatment unit is connected with the inlet end of the treatment unit, the sludge concentration tank is connected with the sludge outlet of the treatment unit, The treatment unit comprises a treatment tank, wherein the treatment tank is independently provided with a magnetic coagulation reaction zone, a magnetic separation sedimentation zone and a fiber rotary disc filtering zone from top to bottom, the magnetic coagulation reaction zone is communicated with the pretreatment unit, and a sludge outlet of the fiber rotary disc filtering zone is communicated with the sludge concentration tank; The dosing mechanism is arranged at the top of the treatment tank and is communicated with the magnetic coagulation reaction zone; The electromagnetic separator is arranged at the bottom of the magnetic separation sedimentation zone, an electromagnetic outlet of the electromagnetic separator is connected with the dosing mechanism through a screw conveyor, and a sludge outlet of the electromagnetic separator is connected with the sludge concentration tank; the fiber rotary table mechanism is arranged in the fiber rotary table filtering area. Further, a stirring mechanism is arranged in the magnetic coagulation reaction zone, and the stirring mechanism comprises a first driving motor and a first stirring shaft; The first driving motor is positioned at the top of the treatment tank and is fixedly arranged on the treatment tank, the first end of the first stirring shaft is in driving connection with the driving end of the first driving motor, the second end of the first stirring shaft penetrates through the top wall of the treatment tank and is positioned in the magnetic coagulation reaction zone, the first stirring shaft is in rotary connection with the top wall of the treatment tank, and a stirring blade group is arranged on the outer surface of the first stirring shaft. Further, the stirring vane group comprises a paddle stirring vane group and a frame stirring vane group, and the paddle stirring vane group and the frame stirring vane group are sequentially arranged on the outer surface of the first stirring shaft from top to bottom. The magnetic separation sedimentation zone comprises a sedimentation cavity and a buffer cavity, wherein the buffer cavity is arranged on one side of the sedimentation cavity, the top end of the buffer cavity is communicated with the magnetic coagulation reaction zone, and the bottom end of the buffer cavity is communicated with the sedimentation cavity; the electromagnetic separator is arranged at the bottom of the sedimentation cavity. Further, the sedimentation cavity comprises an overflow weir area, an inclined plate area and a conical mud collecting area which are sequentially communicated from top to bottom; The electromagnetic separator is arranged at the center of the bottom of the conical mud collecting area, a plurality of sloping plates are uniformly arranged in the sloping plate area, the overflow weir area is provided with an overflow weir, and one end of the overflow weir is provided with a water outlet and is communicated with the fiber turntable filtering area. Further, a plurality of guide plates are obliquely arranged in the buffer cavity. Further, the fiber rotary table filtering area is divided into a dispersing chamber and a filtering chamber through a partition plate, the dispersing chamber is located above the filtering chamber, the partition plate is provided with a plurality of water outlet holes, and the fiber rotary table mechanism is arranged on the filtering chamber. Further, the fiber turntable mechanism comprises a second driving motor and a first rotating shaft; The second driving motor is positioned at the bottom of the treatment tank and is fixedly arranged on the treatment tank, the first end of the first rotating shaft is i