Slurry shield tunneling full-section cohesive soil separation device
By adopting a double-layer sieve plate structure and cleaning mechanism in the slurry shield tunneling device, the problem of clay soil blockage was solved, efficient mud separation was achieved, environmental pollution and construction period were reduced, and operating efficiency and economic benefits were improved.
Patent Information
- Application Number
- CN202511118127.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-11
- Publication Date
- 2025-10-10
AI Technical Summary
In the existing technology, during the excavation process of the slurry shield, the clay clumps and blocks the screen plate, resulting in the inability to effectively separate the mud, causing mixed pollution in the slag field and environmental pollution.
It adopts a double-layer screen plate structure, combined with mud guide plates, mud guards, mud scrapers and high-pressure water jets. The mud guide plates prevent mud from flowing into the lower screen plate, the mud guards block the leakage of mud, and the mud scrapers and high-pressure water jets are used to clear blockages, and continuous cleaning is carried out with a wire brush.
It improves operating efficiency, reduces the time of excavating clay soil, eliminates environmental pollution, and improves economic benefits and safety.
Smart Images
Figure CN120754589A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of slurry separation, and particularly relates to a full-face clay separation device for clay water shield tunneling. BACKGROUND
[0002] At present, when a clay water shield is tunneling in a stratum, the clay sand on the tunnel face is taken out of the ground by a shield cutter, and then the clay sand, slurry and particles are screened by a separation system, the slurry is pressure-filtered, and the treatment is harmless. The slurry separation in this process uses a vibrating screen. The conventional vibrating screen can screen the clay sand and the particle material, but when the clay sand is tunneling in clay, the clay cannot be separated from the clay that is in a lump. The clay in a lump is agglomerated on the screen plate to block the screen plate, the slurry cannot flow into the sedimentation tank, and a large amount of slurry will flow into the slag field, causing the dry slag and the slurry to be mixed in the slag field, which cannot be transported outside, and even flows to the outside of the construction site, pollutes the environment, and affects the traffic. SUMMARY
[0003] In order to solve the above problems, the application adopts the following technical scheme:
[0004] A full-face clay separation device for clay water shield tunneling, comprising a vibrating screen, the vibrating screen is provided with a double-layer screen plate and a cleaning mechanism for cleaning the double-layer screen plate, the double-layer screen plate comprises an upper screen plate and a lower screen plate, and the upper screen plate and the lower screen plate are arranged in parallel; one end of the upper screen plate is provided with a mud guide plate for preventing the mud lumps screened out of the upper screen plate from flowing into the lower screen plate; one end of the lower screen plate close to the mud guide plate is provided with a mud baffle for blocking the leakage of the slurry; and the cleaning mechanism is arranged between the upper screen plate and the lower screen plate.
[0005] Further, the mud guide plate and the mud baffle are both first arc-shaped plates.
[0006] Further, the top of the mud baffle is provided with a mud scraper, and the two ends of the mud scraper are rotatably connected with the two side plates of the vibrating screen.
[0007] Further, the mud scraper comprises a rotating mud scraping plate and a driving part, the two ends of the rotating mud scraping plate are rotatably connected with the two side plates of the vibrating screen, and the driving part is arranged on the side plate of the vibrating screen and is drivingly connected with the rotating mud scraping plate.
[0008] Further, the rotating mud scraping plate is composed of two second arc-shaped plates, and the opening end directions of the two second arc-shaped plates are opposite; and the two ends of the connection part of the two second arc-shaped plates are rotatably connected with the two side plates of the vibrating screen.
[0009] Further, the cleaning mechanism comprises a steel wire brush and two steel wire brush guide rails.
[0010] The two wire brush guide rails are arranged on both side plates of the vibrating screen and are located between the upper screen plate and the lower screen plate; wherein the wire brush guide rails are arranged along the length direction of the lower screen plate;
[0011] Both ends of the wire brush are respectively connected to the wire brush guide rails in a sliding manner, and the wire brush abuts against the lower screen plate.
[0012] Furthermore, the gaps in the upper sieve plate are larger than the gaps in the lower sieve plate, and the lower sieve plate is a thin strip sieve plate.
[0013] Furthermore, a high-pressure water jet is provided on the middle crossbeam of the vibrating screen.
[0014] Beneficial effects of the present invention:
[0015] The present invention improves operating efficiency, increases the utilization efficiency of mechanical equipment, eliminates environmental pollution, enhances economic benefits, ensures safety, and has excellent application effects.
[0016] The present invention can reduce the excavation time in clay soil, shorten the construction period by 40%, and will not cause environmental pollution.
[0017] The present invention shortens the tunnel excavation operation time. During the entire implementation process, reasonable matching and coordination of work are carried out to achieve fast and efficient full-section clay layer excavation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A schematic structural diagram of a full-section clay separation device for slurry shield tunneling provided by the present invention;
[0019] Figure 2 A schematic diagram of the structure of the mud guide and mud guard provided by the present invention;
[0020] Figure 3 A schematic structural diagram of the cleaning mechanism provided by the present invention;
[0021] In the figure: 1. Vibrating screen; 2. Upper screen plate; 3. Mud guide plate; 4. Lower screen plate; 5. Mud guard; 6. Rotating scraper; 7. Wire brush guide; 8. Wire brush. DETAILED DESCRIPTION
[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0023] Example 1
[0024] refer to Figure 1-Figure 3The application discloses a slurry shield tunneling full-face clay separation device, which comprises a vibrating screen 1, the vibrating screen 1 is provided with a double-layer screen plate and a cleaning mechanism for cleaning the double-layer screen plate, the double-layer screen plate comprises an upper screen plate 2 and a lower screen plate 4, and the upper screen plate 2 and the lower screen plate 4 are arranged in parallel; one end of the upper screen plate 2 is provided with a mud guide plate 3 for preventing mud balls screened out of the upper screen plate 2 from flowing into the lower screen plate 4; one end of the lower screen plate 4 close to the mud guide plate 3 is provided with a mud baffle 5 for blocking the leakage of mud; and the cleaning mechanism is arranged between the upper screen plate 2 and the lower screen plate 4.
[0025] Preferably, the mud guide plate 3 and the mud baffle 5 are both first arc-shaped plates.
[0026] In the embodiment, the first arc-shaped plate of the mud guide plate 3 is downwardly curved, and the first arc-shaped plate of the mud baffle 5 is upwardly curved.
[0027] Preferably, the top of the mud baffle 5 is provided with a mud scraper, and the two ends of the mud scraper are rotationally connected with the two side plates of the vibrating screen 1 respectively.
[0028] Preferably, the mud scraper comprises a rotating mud scraping plate 6 and a driving part, the two ends of the rotating mud scraping plate 6 are rotationally connected with the two side plates of the vibrating screen 1 respectively, and the driving part is arranged on the side plate of the vibrating screen 1 and is drivingly connected with the rotating mud scraping plate 6.
[0029] In the embodiment, the driving part is a motor.
[0030] Preferably, the rotating mud scraping plate 6 is composed of two second arc-shaped plates, and the opening end directions of the two second arc-shaped plates are opposite; wherein the two ends of the connecting part of the two second arc-shaped plates are rotationally connected with the two side plates of the vibrating screen 1 respectively.
[0031] In the embodiment, a plurality of holes are arranged on the rotating mud scraping plate 6.
[0032] Preferably, the cleaning mechanism comprises a steel wire brush 8 and two steel wire brush guide rails 7.
[0033] The two steel wire brush guide rails 7 are oppositely arranged on the two side plates of the vibrating screen 1 and are located between the upper screen plate 2 and the lower screen plate 4; wherein the steel wire brush guide rail 7 is arranged along the length direction of the lower screen plate 1.
[0034] The two ends of the steel wire brush 8 are slidingly connected with the steel wire brush guide rail 7 respectively, and the steel wire brush 8 is in abutment with the lower screen plate 4.
[0035] In the embodiment, the steel wire brush guide rail 7 is a linear sliding rail, and can drive the steel wire brush 8 to reciprocate.
[0036] Preferably, the gap of the upper screen plate 2 is larger than that of the lower screen plate 4, and the lower screen plate 4 is a thin strip-shaped screen plate, so that the clay balls adhered to the surface of the lower screen plate 4 can be easily brushed off by the steel wire brush 8.
[0037] Preferably, a high-pressure water jet is provided on the middle crossbeam of the vibrating screen 1 .
[0038] Working principle: A mud guide plate is welded to the upper screen plate, and the mud clumps screened out by the upper screen plate will not flow into the lower screen plate. A mud guard is installed on the lower screen plate to block the leaked mud, and the mud clumps gathered after agglomeration are scraped off by a rotating mud scraper with holes; the rotating mud scraper with holes scrapes off the agglomerated mud blocks, and the mud flows out through the small holes; a reciprocating wire brush is provided to scrape off the blocked mud clumps on the screen plate; a high-pressure water flusher is provided to flush the double-layer screen plate, wire brush and rotating mud scraper with high-pressure water flow, so that the system can work continuously and stably.
[0039] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.
Claims
1. A full-section clay separation device for slurry shield tunneling, comprising a vibrating screen, characterized in that: The vibrating screen is provided with a double-layer sieve plate and a cleaning mechanism for cleaning the double-layer sieve plate, the double-layer sieve plate includes an upper sieve plate and a lower sieve plate, the upper sieve plate and the lower sieve plate are arranged in parallel; one end of the upper sieve plate is provided with a mud guide plate for preventing the mud clumps screened out by the upper sieve plate from flowing into the lower sieve plate; the end of the lower sieve plate close to the mud guide plate is provided with a mud guard for blocking the leakage of mud; the cleaning mechanism is arranged between the upper sieve plate and the lower sieve plate.
2. A full-section clay separation device for slurry shield tunneling according to claim 1, characterized in that: The mud guide plate and the mud guard are both first arc-shaped plates.
3. A full-section clay separation device for slurry shield tunneling according to claim 2, characterized in that: A scraper is provided on the top of the mud guard, and both ends of the scraper are rotatably connected to the two side plates of the vibrating screen respectively.
4. A full-section clay separation device for slurry shield tunneling according to claim 3, characterized in that: The scraper includes a rotating scraper plate and a driving part. The two ends of the rotating scraper plate are respectively rotatably connected to the two side plates of the vibrating screen. The driving part is arranged on the side plates of the vibrating screen and is drivingly connected to the rotating scraper plate.
5. A full-section clay separation device for slurry shield tunneling according to claim 4, characterized in that: The rotary scraper is composed of two second arc-shaped plates, and the opening ends of the two second arc-shaped plates are in opposite directions; wherein, the two ends of the connection of the two second arc-shaped plates are respectively rotatably connected to the two side plates of the vibrating screen.
6. The full-section clay separation device for slurry shield tunneling according to claim 1, characterized in that: The cleaning mechanism includes a wire brush and two wire brush guide rails; The two wire brush guide rails are arranged on both side plates of the vibrating screen and are located between the upper screen plate and the lower screen plate; wherein the wire brush guide rails are arranged along the length direction of the lower screen plate; Both ends of the wire brush are respectively connected to the wire brush guide rails in a sliding manner, and the wire brush abuts against the lower screen plate.
7. The full-section clay separation device for slurry shield tunneling according to claim 1, characterized in that: The gap of the upper sieve plate is larger than the gap of the lower sieve plate, and the lower sieve plate is a thin strip sieve plate.
8. The full-section clay separation device for slurry shield tunneling according to claim 1, characterized in that: A high-pressure water jet is provided on the middle crossbeam of the vibrating screen.