CN-121974529-A - Tail water treatment device and method based on road coring system

CN121974529ACN 121974529 ACN121974529 ACN 121974529ACN-121974529-A

Abstract

The invention relates to the technical field of sewage treatment, and particularly discloses a tail water treatment device and method based on a road coring system, wherein the tail water treatment device comprises a recovery component and a treatment component; the recovery assembly is used for sucking tail water after the road coring to the treatment assembly, the treatment assembly comprises a sedimentation tank, a liquid collecting pipe, a bypass pipe and a filtering assembly, wherein the sedimentation tank is used for receiving the tail water sucked by the recovery assembly, a plurality of first water outlet pipes are arranged on the sedimentation tank along the circumferential direction, a first valve is arranged on each first water outlet pipe, the liquid collecting pipe is used for receiving the tail water containing oil stains and guided out by each first water outlet pipe, one end of the bypass pipe is connected with the liquid collecting pipe, the other end of the bypass pipe is arranged in the sedimentation tank, the bypass pipe is provided with a circulating pump, the oil suction assembly is arranged on the bypass pipe, and the filtering assembly is connected with the sedimentation tank and is used for filtering supernatant liquid which is sedimentated and degreased by the sedimentation tank. The invention not only can realize the solid-liquid separation of the tail water of the road coring, but also can well realize the removal of the greasy dirt in the tail water, and reduce the risk of blockage of the filter assembly.

Inventors

LI JUNPENG
ZHANG JING
CHEN YI

Assignees

四川省公路规划勘察设计研究院有限公司

Dates

Publication Date: 20260505
Application Date: 20260331

Claims (15)

1. The tail water treatment device based on the road coring system is characterized by comprising a recovery assembly and a treatment assembly, wherein the recovery assembly is used for sucking tail water after the road coring to the treatment assembly; the treatment component is used for carrying out sedimentation, degreasing and filtering treatment on the tail water, and comprises: The sedimentation tank (1) is connected with the recovery assembly and used for receiving tail water sucked out by the recovery assembly, a plurality of first water outlet pipes (15) are arranged on the sedimentation tank (1) along the circumferential direction, the tail water containing greasy dirt in the sedimentation tank (1) is led out of the sedimentation tank (1) through the first water outlet pipes (15), and a first valve is arranged on the first water outlet pipes (15); The liquid collecting pipe (3) is used for receiving tail water containing oil stains and led out from the first water outlet pipe (15); A bypass pipe (4), one end of which is connected with the liquid collecting pipe (3), the other end of which is arranged in the sedimentation tank (1), wherein the bypass pipe (4) is provided with a circulating pump, and an oil suction component (5) is arranged on the bypass pipe (4); And the filtering component is connected with the settling tank (1) and is used for filtering the supernatant which is settled and degreased by the settling tank (1).
2. The tail water treatment device based on the road coring system according to claim 1, wherein the liquid collecting pipe (3) is an annular pipeline and is arranged outside the sedimentation tank (1), one end of the first water outlet pipe (15) is connected with the sedimentation tank (1), the other end of the first water outlet pipe is connected with the liquid collecting pipe (3), and the height of the liquid collecting pipe (3) is lower than that of one end of the first water outlet pipe (15) connected with the sedimentation tank (1).
3. A tail water treatment device based on a road coring system according to claim 2, wherein said liquid collecting pipe (3) is arranged obliquely, and one end of said side pipe (4) is connected to a side wall or bottom of the lowest end of said liquid collecting pipe (3).
4. Tail water treatment device based on a road coring system according to claim 1, characterized in that said sedimentation tank (1) comprises an upper tank body (11) and a lower tank body (13), said upper tank body (11) and said lower tank body (13) being connected hermetically by a first telescopic section (12), said first water outlet pipe (15) being arranged on said upper tank body (11); the outer wall of the lower tank body (13) is provided with first telescopic components (9) for supporting the upper tank body (11) and adjusting the height of the upper tank body (11), and the outer wall of the lower tank body (13) is symmetrically provided with 2 first telescopic components (9) at least along the circumferential direction; or a water inlet pipe for supplementing water into the sedimentation tank (1) is arranged on the sedimentation tank (1), so that the tail water liquid level in the sedimentation tank (1) is arranged at the position corresponding to the inlet of the first water outlet pipe (15), and a water inlet valve is matched with the water inlet pipe.
5. A tail water treatment device based on a road coring system as set forth in claim 4, further comprising a control unit comprising: The liquid level sensor is used for collecting the liquid level of tail water in the sedimentation tank (1); The controller is in communication connection with the liquid level sensor, the water inlet valve, the first valve and the first telescopic component (9), and is used for controlling to open or close the water inlet valve and the first valve or controlling the telescopic of the first telescopic component (9) and controlling to open or close the first valve according to liquid level signals acquired by the liquid level sensor.
6. A tail water treatment device based on a road coring system according to any one of claims 1-5, wherein said recovery assembly comprises a recovery tube (2) and a suction pump; The recovery pipe (2) comprises a straight pipe section (21), one end of the straight pipe section (21) is connected with the sedimentation tank (1), the other end of the straight pipe section is inserted into a pore canal formed after the road coring, and a filtering structure (23) is arranged at one end of the straight pipe section (21) inserted into the pore canal.
7. The tail water treatment device based on the road coring system according to claim 6, wherein a vibrating water head (6) is arranged outside the filtering structure (23), the vibrating water head (6) comprises a sliding piece (61) and a supporting plate (62), the sliding piece (61) is in sliding connection with the outer wall of the straight pipe section (21), and the supporting plate (62) is arranged outside the bottom of the filtering structure (23); A plurality of connecting rods (63) are arranged between the sliding piece (61) and the supporting plate (62), the connecting rods (63) realize expansion and contraction through vertical displacement of the sliding piece (61), and the plurality of connecting rods (63) are arranged outside the filtering structure (23), and a filter screen (64) is arranged between two adjacent connecting rods (63); The slider (61) is vertically displaced by a second telescopic member.
8. A tail water treatment device based on a road coring system according to claim 7, wherein the bottom of said filtering structure (23) is provided with a number of first through holes and/or said support plate (62) is provided with a number of second through holes.
9. A tail water treatment device based on a road coring system according to claim 7, characterized in that said straight pipe section (21) is provided outside with an annular connection plate (66) above said slide (61); The annular connecting plate (66) is connected with the sliding piece (61) through a connecting rod (65), and the annular connecting plate (66) is connected with the telescopic end of the second telescopic piece.
10. A tail water treatment device based on a road coring system according to claim 7, wherein a second telescopic section (22) is provided on the straight pipe section (21) in a position corresponding to the height of the sedimentation tank (1).
11. A tail water treatment device based on a road coring system according to claim 7, wherein the outer wall of said straight pipe section (21) is provided with a protrusion arranged along the axial direction thereof, and the inner wall of said slider (61) is provided with a chute cooperating with said protrusion.
12. A tail water treatment device based on a road coring system according to claim 1, wherein a plurality of first water outlet pipes (15) are uniformly arranged along the circumferential direction of the sedimentation tank (1), one end of the bypass pipe (4) is positioned in the central axial direction of the sedimentation tank (1), one end of the bypass pipe (4) is vertically arranged, and the outlet of the bypass pipe is positioned above the liquid level in the sedimentation tank (1).
13. The tail water treatment device based on the road coring system as set forth in claim 1, wherein the oil absorbing assembly (5) comprises a housing, two ends of the housing are detachably connected with the bypass pipe (4), oil absorbing filler is filled in the housing, and the oil absorbing assembly (5) is vertically arranged.
14. A tail water treatment device based on a road coring system according to claim 1, wherein said filtering assembly comprises a coarse filtering assembly (7) and a fine filtering assembly (8); The coarse filtering component (7) is connected with a blow-down pipe (17) at the bottom of the settling tank (1) and is used for filtering tail water containing silt at the bottom of the settling tank (1); The fine filtering component (8) is connected with a second water outlet pipe (16) on the side wall of the settling tank (1) and is connected with the coarse filtering component (7) and is used for filtering filtrate of the coarse filtering component (7) and supernatant obtained after the settling tank (1) is settled and degreased.
15. A treatment method based on the tail water treatment apparatus according to any one of claims 1 to 14, characterized by comprising the steps of: s1, sucking tail water generated after the road coring into the sedimentation tank (1) by adopting the recovery assembly to carry out sedimentation; S2, after sedimentation is finished, regulating the height of the liquid level in the sedimentation tank (1) relative to the inlet of the first water outlet pipe (15) to enable the liquid level in the sedimentation tank (1) to correspond to the inlet of the first water outlet pipe (15); s3, opening the first valve and the circulating pump to enable tail water containing greasy dirt in the settling tank (1) to be subjected to circulating degreasing treatment in a circulating loop formed by the bypass pipe (4) and the settling tank (1), and closing the first valve and the circulating pump until the liquid level in the settling tank (1) is free of greasy dirt; s4, discharging the supernatant in the settling tank (1) to the filtering component for filtering treatment; s5, discharging the solid impurities deposited at the bottom of the sedimentation tank (1).

Description

Tail water treatment device and method based on road coring system Technical Field The invention relates to the technical field of sewage treatment, in particular to a tail water treatment device and method based on a road coring system. Background The road coring is a sampling detection link in the road construction process, and is a construction process which is designed specifically from the characteristics based on the road structural material, and is characterized in that a certain regular columnar sample (core sample) is extracted from the road structure through coring equipment, and the sample analysis of the road foundation structure is carried out, so that the characteristics of the road structural material, including the compactness, the compressive strength and the like of the road surface, are helped to be known. The coring of roads uses drilling coring, which is usually performed by rotating the drill bit to drill the road bed, water or other liquid is used to cool the drill bit and carry away the drill cuttings, the liquid forms tail water during the drilling process, and a great deal of drill cuttings and crushed stone are generated when the drill bit contacts the ground during the coring process, and the particulate matters are usually suspended or settled in the water. Therefore, the tail water contains a large amount of solid particles, and in addition, grease-containing chemical agents such as oil lubricants are involved in the process of drilling and coring, namely, the tail water generated by the road coring contains mud, sand and oil stains. In order to reduce tail water residues, the tail water is usually cleaned after coring, however, the treatment of the tail water by mud, sand and oil stains in the road coring tail water causes certain difficulty. At present, no device and method for treating tail water of coring on roads exist, and conventional sewage treatment containing mud is usually realized by adopting a sedimentation and filtration mode, but through filtration and sedimentation, solid-liquid separation can be realized, solid impurities in the tail water are removed, but oil stains in the tail water cannot be treated, if the oil stains in the sewage are treated by relying on filtration after sedimentation, the filtration capable of removing the oil stains needs to be carried out by using a fine filtration component, such as membrane filtration and the like, and the oil stains easily cause the blockage of the fine filtration component. In addition, the treatment of the tail water for the coring on the road involves suction, and the tail water needs to be sucked to the ground for sedimentation, filtration and other treatments, and the suction pump is greatly worn by large-particle solids (sand, etc.) contained in the tail water. Therefore, there is a need to design a treatment system suitable for use with road coring tail water. Disclosure of Invention The invention aims to provide a tail water treatment device and a tail water treatment method based on a road coring system, so as to realize recovery treatment of the road coring tail water, realize solid-liquid separation, well realize removal of greasy dirt in the tail water and reduce the risk of blockage of a filter assembly. The invention is realized by the following technical scheme: A tail water treatment device based on a road coring system comprises a recovery component and a treatment component, wherein the recovery component is used for sucking tail water after road coring to the treatment component; The treatment component is used for settling, degreasing and filtering the tail water, and comprises: The sedimentation tank is connected with the recovery assembly, receives tail water sucked by the recovery assembly, is provided with a plurality of first water outlet pipes along the circumferential direction, and leads out the tail water containing greasy dirt in the sedimentation tank through the first water outlet pipes, and is provided with a first valve; The liquid collecting pipe is used for receiving tail water containing greasy dirt and led out from the first water outlet pipe; One end of the bypass pipe is connected with the liquid collecting pipe, the other end of the bypass pipe is arranged in the settling tank, the bypass pipe is provided with a circulating pump, and the bypass pipe is provided with an oil suction assembly; And the filtering component is connected with the settling tank and is used for filtering the supernatant which is settled and degreased by the settling tank. The tail water treatment device is designed based on the characteristics of tail water after the coring of roads, and can avoid the problem of blockage caused by the pollution of the filtering component by greasy dirt on the premise of effectively treating the tail water. Specifically, the invention improves the conventional settling tank, and the first water outlet pipe for leading out the tail water containing the greasy dirt is ar