Sand adjusting assembly for mud-water separation system of tunnel mud

Abstract

The utility model provides a sand adjusting assembly for a tunnel slurry mud-water separation system, which comprises a plate body, the plate body is provided with a cavity, the outer wall of the plate body is provided with a plurality of water passing holes, the water passing holes are vertically arranged along the plate body, the plate body is internally provided with a plurality of adjusting blocks matched with the cavity, and the adjusting blocks are in a shape with a wide lower part and a narrow upper part; the device further comprises an adjusting mechanism, the adjusting mechanism comprises an objective table capable of horizontally reciprocating, an adjusting block is arranged on the objective table, and the objective table can drive the adjusting block to gradually block the water passing hole in the horizontal reciprocating process so as to adjust the height of the plate body, through which water can flow, of the water passing hole. The adjusting blocks are matched with the water passing holes in the horizontal movement process to achieve adjustment of the blocking height of the water passing holes, the multiple adjusting blocks are synchronously matched with the corresponding water passing holes, synchronous adjustment of the water passing height of the water passing holes is achieved, the adjusting efficiency is high, and the adjusting precision is consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of mud and water separation, in particular to a sand regulating component for a tunnel mud and water separation system. Background Art

[0002] Shield construction is a common construction method for tunnels required for urban underground rail transit. The large amount of mud generated by the shield machine during tunnel excavation must be separated by the mud-water separation system before it can be discharged. The mud-water separation system processes the slurry containing sand, gravel and soil generated during the excavation process, including the initial screening of large solid stones and mud blocks, and the re-screening of the separated sand, gravel, soil and water using a dewatering vibrating screen. In the re-screening process, the sand adjustment component set on the vibrating screen is mainly used to adjust the moisture content of the fine sand obtained by screening, so as to obtain fine sand with the desired moisture content.

[0003] Existing sand adjustment components usually have bolt assemblies to adjust the size of the water holes on the adjustment plate. During use, tools are needed to install or remove the bolts one by one to complete the adjustment of the water holes. The adjustment efficiency is low and it is not conducive to controlling the adjustment accuracy. In addition, the debris trapped on the vibrating screen sometimes blocks the water holes of the adjustment plate, affecting the original adjustment setting of the water flow, resulting in the moisture content of the fine sand obtained by screening being different from the expectation. Utility Model Content

[0004] The utility model aims to provide a sand regulating component for a tunnel mud and water separation system, so as to solve the problems of low regulating efficiency and poor regulating accuracy of the existing sand regulating components.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A sand adjusting assembly for a tunnel mud and water separation system, comprising a plate body for being detachably mounted on a dewatering vibrating screen, the plate body being provided with a cavity, a plurality of water holes for allowing water to flow through the plate body being provided on the outer wall of the plate body, the water holes being vertically arranged along the plate body, a plurality of adjusting blocks adapted to the cavity in the direction in which water flows through the plate body being provided in the plate body, the adjusting blocks being wide at the bottom and narrow at the top;

[0007] It also includes an adjustment mechanism arranged on the plate body, the adjustment mechanism includes a loading platform that can move horizontally back and forth, the adjustment block is arranged on the loading platform, and the loading platform can drive the adjustment block to gradually block the water hole during the horizontal reciprocating movement to adjust the height of the plate body through which the water hole allows water to flow.

[0008] Preferably, the water through hole is rectangular, and the regulating block is a right-angled trapezoid with a top width not less than the width of the water through hole.

[0009] Preferably, the water holes are arranged in sequence and at intervals along the horizontal direction of the plate body, and the bottom of the regulating block is not higher than the bottom of the water holes in the vertical direction of the plate body.

[0010] Preferably, the adjustment mechanism includes a lead screw horizontally arranged along the plate body on the upper part of the cavity, and a slide table arranged on the plate body along both sides of the lead screw, a nut seat is provided on the lead screw, a slider fixedly connected to the nut seat is adapted to be installed on the slide table, a loading platform is fixedly installed on the nut seat, and the adjustment block is detachably arranged on the loading platform.

[0011] Preferably, the top of the plate body is open, and a cover plate for covering the plate body is provided on the plate body.

[0012] Preferably, a handwheel connected to the lead screw is provided on the side wall of the plate body.

[0013] Preferably, the adjusting block is made of polyurethane.

[0014] Preferably, a ruler for marking the height of the water holes is provided on the plate body.

[0015] The beneficial effects of the utility model are:

[0016] The sand adjusting component of the utility model is provided with water holes on the plate body, and an adjusting block driven by an adjusting mechanism is provided in the plate body, the adjusting block is in the shape of a right-angled trapezoid, and the sealing height of the water holes can be adjusted by cooperating with the water holes during the horizontal position movement of the adjusting block, and multiple adjusting blocks are synchronously cooperated with the corresponding water holes to achieve synchronous adjustment of the water passing height of the water holes. Compared with the existing sand adjusting components, the utility model has high adjustment efficiency and consistent adjustment accuracy when adjusting the moisture content of the dewatering vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the sand conditioning assembly provided in the embodiment;

[0018] Figure 2 A schematic diagram of the longitudinal cross-sectional structure of the sand conditioning assembly provided in the embodiment;

[0019] Figure 3 A schematic diagram of the structure of the sand conditioning assembly provided in the embodiment during operation;

[0020] Figure 4 This is a schematic diagram of the top view of the sand conditioning assembly provided in the embodiment without the cover plate.

[0021] Markings in the figure: 1, plate body, 101, cavity, 2, cover plate, 3, water hole, 4, ruler, 5, adjustment mechanism, 501, hand wheel, 502, screw, 503, nut seat, 504, loading platform, 505, shaft seat, 506, slide, 507, slider, 6, adjustment block. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0024] The utility model provides a specific embodiment of a sand adjusting component for a tunnel mud and water separation system:

[0025] like Figure 1-Figure 4 As shown, the sand adjusting assembly for the tunnel mud and water separation system of this embodiment includes a plate body 1, which can be detachably installed on the water outlet end of the dewatering vibrating screen by a bolt assembly, and the plate body 1 is provided with a cavity 101, and a plurality of water holes 3 are provided on the outer wall of the plate body 1, and usually two corresponding water holes 3 on the plate body 1 form a group, and the water on the dewatering vibrating screen can flow through the plate body 1 through the water holes 3, and the water holes 3 are vertically arranged along the plate body 1, and the moisture content of the fine sand screened out on the dewatering vibrating screen is adjusted by adjusting the height of the water flowing through the water holes 3 on the plate body 1.

[0026] In this embodiment, the water hole 3 is vertically arranged along the plate body 1 and can be set to a rectangular shape. A plurality of adjustment blocks 6 are provided in the plate body 1. The adjustment blocks 6 are adapted to the cavity 101 in the direction in which water flows through the plate body 1. The adjustment blocks 6 are wide at the bottom and narrow at the top and can be set to a right-angled trapezoidal shape with a top width not less than the width of the water hole 3, wherein the direction in which water flows through the plate body 1 is the thickness of the cavity 101. The adjustment blocks 6 are preferably made of elastic materials such as polyurethane, and the thickness of the adjustment blocks 6 is adapted to the thickness of the cavity 101.

[0027] Among them, the sand adjusting assembly of this embodiment also includes an adjusting mechanism 5 arranged on the plate body 1, and the adjusting mechanism 5 includes a lead screw 502 arranged inside the plate body 1 through an axis seat 505, the lead screw 502 is horizontally arranged on the upper part of the cavity 101 along the plate body 1, a nut seat 503 is provided on the lead screw 502, and a loading platform 504 is fixedly installed on the nut seat 503, and slides 506 are arranged on both sides of the lead screw 502 on the plate body 1, and sliders 507 fixedly connected to the nut seat 503 are adapted to be installed on the slide 506. When the lead screw 502 is working, the loading platform 503 can move back and forth horizontally in the cavity 101, and the adjusting block 6 is detachably arranged on the loading platform 504 by bolts, and the adjusting block 6 moves back and forth horizontally in the cavity 101 along with the loading platform 503.

[0028] In the present embodiment, the water holes 3 are horizontally arranged in sequence along the plate body 1 at intervals, and the bottom of the adjusting block 6 is not higher than the bottom of the water hole 3 in the vertical direction of the plate body 1. When the adjusting block 6 moves horizontally back and forth in the cavity 101 along with the stage 503, the water hole 3 can be first blocked from the bottom of the water hole 3, and then gradually blocked in height until the water hole 3 is completely blocked, thereby achieving the purpose of adjusting the water hole 3 by the adjusting block 6 to enable water to flow through the height of the plate body 1. During implementation, the adjusting block 6 can be made of polyurethane material, which can better fit the inner wall of the plate body 1 to achieve a better blocking effect on the water hole 3.

[0029] See also Figure 1 and Figure 4 As shown, a handwheel 501 connected to a lead screw 502 is provided on the side wall of the plate body 1. The lead screw 502 is rotated by rotating the handwheel 501. During the rotation of the lead screw 502, the adjustment block 6 blocks the water hole 3 at different heights, thereby realizing the adjustment and control of the residual moisture of the fine sand on the dewatering vibration screen. In order to facilitate fine adjustment, a ruler 4 for marking the height of the water hole 3 is provided at the water hole 3, and the ruler 4 can be a scale line.

[0030] Specifically, the top of the plate body 1 can be open, that is, the upper end of the cavity 101 is completely connected to the outside of the plate body 1, and a cover plate 2 for covering the plate body 1 is provided on the plate body 1. The cover plate 2 can be snap-fitted on the plate body 1 to facilitate replacement or maintenance of the structural parts in the cavity 101.

[0031] When the utility model is in use, an adjustment block 6 driven by an adjustment mechanism 5 is arranged in the plate body 1, and the sealing height of the water hole 3 is adjusted by the cooperation of the adjustment block 6 with the water hole 3 during the horizontal position movement. Multiple adjustment blocks 6 cooperate with the corresponding water holes 3 synchronously to achieve synchronous adjustment of the water flow height of the water hole 3, with high adjustment efficiency and consistent adjustment accuracy.

[0032] It should be noted that the parts not described in detail in this application are all prior art.

[0033] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sand conditioning assembly for a tunnel mud and water separation system, comprising a plate body (1) for being detachably mounted on a dewatering vibrating screen, characterized in that: The plate body (1) is provided with a cavity (101), and the outer wall of the plate body (1) is provided with a plurality of water holes (3) capable of allowing water to flow through the plate body (1), the water holes (3) being arranged vertically along the plate body (1), and the plate body (1) is provided with a plurality of adjustment blocks (6) adapted to the cavity (101) in the direction in which water flows through the plate body (1), the adjustment blocks (6) being wide at the bottom and narrow at the top; The device also comprises an adjusting mechanism (5) arranged on the plate body (1), the adjusting mechanism (5) comprising a loading platform (504) capable of horizontal reciprocating movement, the adjusting block (6) being arranged on the loading platform (504), and the loading platform (504) being capable of driving the adjusting block (6) to gradually block the water hole (3) during the horizontal reciprocating movement, so as to adjust the height of the plate body (1) through which the water hole (3) enables water to flow.

2. The sand conditioning assembly for a tunnel mud-water separation system according to claim 1, characterized in that: The water passage hole (3) is rectangular in shape, and the regulating block (6) is in the shape of a right-angled trapezoid with a top width not less than the width of the water passage hole (3).

3. The sand conditioning assembly for a tunnel mud-water separation system according to claim 2, characterized in that: The water holes (3) are arranged in sequence at intervals along the horizontal direction of the plate body (1), and the bottom of the regulating block (6) is not higher than the bottom of the water holes (3) in the vertical direction of the plate body (1).

4. A sand conditioning assembly for a tunnel mud and water separation system according to claim 2 or 3, characterized in that: The adjustment mechanism (5) comprises a lead screw (502) horizontally arranged on the upper part of the cavity (101) along the plate body (1), and a slide table (506) arranged on the plate body (1) along both sides of the lead screw (502); a nut seat (503) is provided on the lead screw (502); a slider (507) fixedly connected to the nut seat (503) is adapted to be mounted on the slide table (506); a loading platform (504) is fixedly mounted on the nut seat (503); and the adjustment block (6) is detachably mounted on the loading platform (504).

5. The sand conditioning assembly for a tunnel mud-water separation system according to claim 4, characterized in that: The top of the plate body (1) is open, and a cover plate (2) for covering the plate body (1) is provided on the plate body (1).

6. The sand conditioning assembly for a tunnel mud-water separation system according to claim 4, characterized in that: A hand wheel (501) connected to the lead screw (502) is provided on the side wall of the plate body (1).

7. The sand conditioning assembly for a tunnel mud-water separation system according to claim 1, characterized in that: The material of the adjustment block (6) is polyurethane.

8. The sand conditioning assembly for a tunnel mud-water separation system according to claim 1, characterized in that: The plate body (1) is provided with a ruler (4) for marking the height of the water hole (3).

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