阅读说明：本技术 一种循环式建筑泥浆水力分离系统及方法 (Circulating type building slurry hydraulic separation system and method ) 是由 田亚洲 邹代灵 郑军涛 王璐 刘俊杰 秦洋 张鑫 贾超 靳家麒 胡年峰 刘翻 于 2020-07-16 设计创作，主要内容包括：本发明涉及泥砂分离领域,本发明公开一种循环式建筑泥浆水力分离系统及方法,本系统包括水力分离装置和滤水装置；所述水力分离装置包括砂石分离组件和离心筛砂组件,所述砂石分离组件用于将石块从细砂和泥中分选出来,所述离心筛砂组件用于将所述细砂和泥进一步清洗并排出外运；所述滤水装置与所述离心筛砂组件通过溢流管相连通,所述滤水装置用于对所述离心筛砂组件的泥浆水进行过滤,将泥和水分离。通过本系统以及利用本系统的方法能够实现将建筑泥砂初始集料分别分成石块、砂、泥和水,实现了各组分的利用,降低建筑工程对砂石的消耗量,成砂和清水进行回收利用,降低能源消耗、提高环保效率。(The invention relates to the field of mud-sand separation, and discloses a circulating building mud hydraulic separation system and a method, wherein the system comprises a hydraulic separation device and a water filtering device; the hydraulic separation device comprises a sand-stone separation component and a centrifugal sand screening component, wherein the sand-stone separation component is used for separating stones from fine sand and mud, and the centrifugal sand screening component is used for further cleaning the fine sand and mud and discharging the fine sand and mud for outward transportation; the water filtering device is communicated with the centrifugal screen sand component through an overflow pipe, and is used for filtering muddy water of the centrifugal screen sand component to separate mud from water. The system and the method utilizing the system can realize that the building silt initial aggregate is respectively divided into stone, sand, mud and water, realize the utilization of each component, reduce the consumption of sandstone in the building engineering, recycle the finished sand and clean water, reduce the energy consumption and improve the environmental protection efficiency.)

1. A circulating building mud hydraulic separation system is characterized by comprising a hydraulic separation device (1) and a water filtering device (2);

the hydraulic separation device (1) comprises a sand-stone separation component (4) and a centrifugal sand screening component (5), wherein the sand-stone separation component (4) is used for separating stone blocks from fine sand and mud, and the centrifugal sand screening component (5) is used for further cleaning the fine sand and mud and discharging the fine sand and mud for outward transportation;

the water filtering device (2) is communicated with the centrifugal screen sand (5) group through an overflow pipe (6), and the water filtering device (2) is used for filtering muddy water of the centrifugal screen sand component (5) to separate mud and water.

2. A circular construction mud hydraulic separation system according to claim 1,

the sand-stone separation component (4) comprises a first shell (7), an inclined plate (8), a washing groove (9), a primary screen (10) and a water spraying pipe (11), wherein the inclined plate (8) is arranged in the first shell (7), the washing groove (9) is arranged on the lower side of the inclined plate (8), the inclined plate (8) is connected with the washing groove (9), the primary screen (10) is arranged at the bottom of the washing groove (9), the water spraying pipe (11) is arranged at the upper part of the first shell (7), and the water spraying pipe (11) is used for washing initial aggregates on the inclined plate (8);

centrifugal sieve sand subassembly (5) include second casing (12) and sieve sand subassembly, second casing (12) with first casing (7) adjacent setting, washtrough (9) below with second casing (12) are linked together, the inside sieve sand subassembly that is equipped with of second casing (12), sieve sand subassembly includes impeller (13), be equipped with pivot (14) on impeller (13), pivot (14) transversely set up and both ends respectively with second casing (12) lateral wall fixed connection, be equipped with on impeller (13) and shovel sand fill (16), shovel sand fill (16) are used for the entering wash the separation is carried out to the sand of second casing (12).

3. The circulating hydraulic separation system for building mud as claimed in claim 2, wherein the second casing (12) is further provided with a second discharge port (24), the second discharge port (24) is close to the discharge end of the sand shovel (16), and the belt hoist is located corresponding to the second discharge port (24).

4. A circular construction mud hydraulic separation system according to claim 1,

the water filtering device (2) comprises a tank body (25), a filtering layer (26), a liquid level sensor (27), an axial flow fan (28) and a mud sedimentation table (29), wherein the bottom of the tank body (25) is provided with a slope (32), the side wall of the tank body (25) positioned on one side of the top of the slope is provided with a water inlet (30), and the side wall of the tank body (25) positioned on one side of the bottom of the slope is provided with a water outlet (31);

be equipped with multistage on slope (32) mud platform (29) sinks, it is equipped with at least one filter layer (26) on mud platform (29) to sink, water inlet (30) with outlet (31) are located respectively the both sides of filter layer (26), cell body (25) upper portion is close to one side of water inlet (30) is equipped with liquid level sensor (27) with axial fan (28), liquid level sensor (27) are used for detecting the height of mud water in cell body (25), axial fan (28) are used for making the entering mud water of cell body (25) is to the transmission vibration wave of downstair direction.

5. A circulating building mud hydraulic separation system according to claim 4, wherein the water filtering device (2) further comprises a controller (36), the level sensor (27) is electrically connected with the controller (36), and the controller (36) is electrically connected with a water inlet valve (37) on the overflow pipe (6).

6. A circulating construction mud hydraulic separation system according to claim 4, wherein the filter layer (26) comprises a first filter plate (33), a second filter plate (34) and a third filter plate (35) with successively smaller pore sizes, the first filter plate (33), the second filter plate (34) and the third filter plate (35) are arranged in sequence from the water inlet (30) to the water outlet (31), and the filter layer (26) is arranged obliquely to the side wall of the tank body (25) on the side of the water outlet (31).

7. A circular construction mud-water separation system according to claim 4, wherein the water inlet (30) and the water outlet (31) are respectively provided on two opposite side walls of the tank body (25), and the water inlet (30) and the water outlet (31) are located in a diagonal direction.

8. A circulating hydraulic separation system for building mud according to any one of claims 1 to 7, wherein the separation system further comprises a conveyor (3), and the conveyor (3) is a belt hoist.

9. A method for hydraulically separating a circulating construction mud, using a circulating construction mud hydraulic separation system according to any one of claims 1 to 8, comprising the steps of:

s1: screening sand and stones, namely screening the stones in the initial building aggregate by using a sand-stone separation component, and allowing the rest sand to enter a centrifugal sand screening component;

s2: cleaning and separating sand, namely cleaning the sand in the centrifugal sand screening assembly, and then conveying the sand to a conveying group for outward transportation through an impeller; the cleaned muddy water enters a water filtering device through an overflow pipe;

s3: treating the muddy water, namely filtering the muddy water entering the water filtering device to enable the muddy water to be accumulated and adsorbed on a mud settling platform, and finally obtaining filtered water;

s4: recycling the slurry, and air-drying the slurry on the sludge settling platform to obtain dry sludge;

in S1, the inclination angle of the inclined plate of the sand-stone separation component is 5-20 degrees, and the inclination angle of the primary screen is 20-40 degrees.

Technical Field

The invention relates to the field of mud-sand separation, in particular to a circulating type building mud hydraulic separation system and method.

Background

In recent years, cast-in-situ bored piles are widely applied to high-rise and super high-rise buildings and heavy structures, but cast-in-situ bored piles are pile foundation construction processes which generate most slurry and cause the most serious environmental pollution, the amount of the slurry is generally three to five times of the volume of the cast-in-situ bored piles, the treatment of the waste slurry is always a difficult problem which puzzles the construction of the cast-in-situ bored piles, and most of the currently and generally adopted treatment modes are directly transported and discharged outside and are naturally dried; if the soil quality of the engineering construction area contains sufficient sandy soil, a large amount of silt can be carried after the cast-in-situ bored pile is drilled.

The existing silt separator has the problems of high input cost, large power consumption of equipment, difficult field placement, difficult fault maintenance of the equipment and the like. How to protect the environment, reduce the occupied cultivated land, ensure the construction progress, reduce the mud treatment cost and turn waste into wealth, separate the mud and sand in the mud out for effective utilization, and the research on the green cyclic comprehensive utilization technology of the flushing and flowback mud is particularly necessary.

Disclosure of Invention

The invention aims to overcome the defects of high investment cost, large equipment power consumption and difficult field arrangement in the prior art, and provides a circulating type building slurry hydraulic separation system and a circulating type building slurry hydraulic separation method.

In order to achieve the above purpose, the invention provides the following technical scheme:

a circulating building mud hydraulic separation system comprises a hydraulic separation device and a water filtering device;

the hydraulic separation device comprises a sand-stone separation component and a centrifugal sand screening component, wherein the sand-stone separation component is used for separating stones from fine sand and mud, and the centrifugal sand screening component is used for further cleaning the fine sand and mud and discharging the fine sand and mud for outward transportation;

the water filtering device is communicated with the centrifugal screen sand component through an overflow pipe, and is used for filtering muddy water of the centrifugal screen sand component to separate mud from water.

The initial silt aggregate in the building process is separated from coarse sand and fine sand through a grit separation component, and the fine sand is separated from slurry water for sale or self-use after being cleaned through a centrifugal sand screening component; the muddy water is converged into the water filtering pond through the overflow pipe, and the clear water finally discharged from the water outlet through the filtration of the multi-stage mud settling platform and the plurality of filter layers can be connected into a urinal drainage system of a toilet of a board house or an industrial water system to avoid the waste of water sources. The gravel produced in the drilling and filling process is recycled through multi-layer separation, so that the occupied cultivated land is reduced, and the method is more economic and environment-friendly.

As a preferable scheme of the invention, the sand-stone separating component comprises a first shell, an inclined plate, a washing groove, a primary screen and a water spraying pipe, wherein the inclined plate is arranged in the first shell, the washing groove is arranged at the lower side of the inclined plate, the inclined plate is connected with the washing groove, the primary screen is arranged at the bottom of the washing groove, the water spraying pipe is arranged at the upper part of the first shell, and the water spraying pipe is used for washing initial aggregates on the inclined plate;

centrifugal sieve sand subassembly includes second casing and sieve sand subassembly, the second casing with the adjacent setting of first casing, the washtrough below with the second casing is linked together, the inside sieve sand subassembly that is equipped with of second casing, sieve sand subassembly includes the impeller, be equipped with the pivot on the impeller, the pivot transversely set up and both ends respectively with second casing lateral wall fixed connection, be equipped with the shovel sand fill on the impeller, the shovel sand fill is used for the sand that gets into the second casing washs the separation.

The first discharge port is formed in the side wall of the first shell, the primary screen is obliquely arranged, and the first discharge port is communicated with the upper space of the primary screen. Sorting through the primary screen in the grit separation subassembly, discharge from the discharge gate of first casing outer wall with the stone of great piece etc. and the slope of primary screen sets up the gravity that can make the stone pass through self and rolls out the discharge gate, avoids the stone to pile up on primary screen and influences the screening effect.

Still further be equipped with the platform on the first casing, the platform passes through the support bar to be fixed first casing top, the platform is equipped with the rail guard all around, platform one side is equipped with the cat ladder, and the staff can carry out the screening that the initial gathers materials through cat ladder to the platform on the high pressure water pipe, and nimble transform angle is to the initial collection materials erode.

The bottom at the hang plate of first casing is equipped with strengthens the strip, strengthen the strip and locate the hang plate with between the first casing, strengthen the strip and be used for consolidating the hang plate, strengthen setting up of strip and make the hang plate more firm.

The impeller with be equipped with the bearing between the pivot, the both ends of pivot are fixed inside the second casing through the support post, the outer loop of impeller with link to each other through many spokes between the bearing, connect the shovel sand fill through the spoke, reduce the rotational speed and improve output torque simultaneously, make the rotational speed of impeller moderate.

The lower end of the supporting upright post is fixed on the second shell base, and the upper end of the supporting upright post is fixed with the driving mechanism; one end of the driving mechanism is rotatably connected with the rotating shaft; and two ends of the rotating shaft are rotatably connected with the bearings; the bearing is connected with the spoke support, and the spoke support is connected with the sand shoveling bucket and the partition plate; the impeller is fixed in the middle of the top end of the second shell through the supporting stand columns, and one end of the speed reducer of the driving mechanism is rotatably connected with a rotating shaft of the impeller and can drive the impeller to rotate between the supporting stand columns.

Be equipped with two rows of shovel sand hoppers side by side on the impeller, two rows the shovel sand hopper sets up in a staggered way, and sets up through baffle interval and fissure of displacement, increases the operating area, provides shovel sand efficiency.

As a preferable scheme of the invention, a second discharge port is further arranged on the second shell, the second discharge port is close to the discharge end of the sand shovel, and the belt type winch corresponds to the second discharge port in position.

As a preferred scheme of the invention, the water filtering device comprises a tank body, a filtering layer, a liquid level sensor, an axial flow fan and a mud settling platform, wherein the bottom of the tank body is a slope, the side wall of the tank body positioned on one side of the top of the slope is provided with a water inlet, and the side wall of the tank body positioned on one side of the bottom of the slope is provided with a water outlet;

the slope of the slope at the bottom of the filter body is 8% -12%, and water in the filter tank can flow from the water inlet to the water outlet through the gentle slope.

The improved sludge settling tank is characterized in that a multi-stage sludge settling platform is arranged on the slope, at least one filter layer is arranged on the sludge settling platform, the water inlet and the water outlet are respectively located on two sides of the filter layer, a liquid level sensor and an axial flow fan are arranged on one side, close to the water inlet, of the upper portion of the tank body, the liquid level sensor is used for detecting the height of muddy water in the tank body, and the axial flow fan is used for enabling the muddy water entering the tank body to transfer vibration waves to the direction of the lower step.

Specifically, the height of each stage of the mud settling platform is 6-10cm, and the mud settling platform is beneficial to a settling platform of mud in mud water, and can reduce the impact force of mud water flow entering a water filtering pool and prevent mud and sand from being accumulated together.

As a preferable aspect of the present invention, the water filtering device further includes a controller, and the liquid level sensor and the air flow undulator are electrically connected to the controller, respectively. When the water level in the filter tank exceeds the position set by the liquid level sensor, the liquid level sensor sends an electric signal to the controller, and the controller controls the water inlet valve on the overflow pipe to be closed.

As a preferable scheme of the invention, the filter layer comprises a first filter plate, a second filter plate and a third filter plate, the pore diameters of the first filter plate, the second filter plate and the third filter plate are sequentially reduced, the first filter plate, the second filter plate and the third filter plate are sequentially arranged in the direction from the water inlet to the water outlet, and the filter layers are all inclined towards the inner wall of the tank body on one side of the water outlet.

The filter layer all possesses for the metal material, the aperture of first filter is about 1.5 +/-0.15 mm, the aperture of second filter is about 1.0 +/-0.2 mm, the aperture of third filter is about 0.5 +/-0.2 mm, and lay respectively in the middle several grades and sink on the mud platform, screening through the filter layer in different apertures, carry out the silt particle and grade, make the interval silt particle district of different particle diameters separate, prevent that metal mesh screen from being blockked up by the silt particle of different particle diameters, improve the water permeability.

As a preferable scheme of the present invention, the water inlet and the water outlet are respectively disposed on two opposite side walls of the tank body, and the water inlet and the water outlet are located in a diagonal direction. The design of diagonal line makes muddy water produce the density difference's that exists heavy stream in the cell body to improve precipitation efficiency, avoid the bottom of the pool silt particle inhomogeneous to pile up, reduce the screen cloth burden.

As a preferable aspect of the present invention, the separation system further includes a conveyor, and the conveyor is a belt type winding machine.

A circular hydraulic separation method for building mud comprises the following steps:

s1: screening sand and stones, namely screening the stones in the initial building aggregate by using a sand-stone separation component, and allowing the rest sand to enter a centrifugal sand screening component;

s2: cleaning and separating sand, cleaning the sand in the centrifugal sand screening assembly, and conveying the sand to a conveying group for outward transportation through an impeller; the cleaned muddy water enters a water filtering device through an overflow pipe;

s3: treating the muddy water, namely filtering the muddy water entering the water filtering device to enable the muddy water to be accumulated and adsorbed on a mud settling platform, and finally obtaining filtered water;

s4: recycling the slurry, and air-drying the slurry on the sludge settling platform to obtain dry sludge;

in S1, the inclination angle of the inclined plate of the sand-stone separation component is 5-20 degrees, and the inclination angle of the primary screen of the sand-stone separation component is 20-40 degrees.

The method comprises the steps of separating initial building aggregate by a sand-stone separation component, removing mixed coarse aggregate stones and the like, further cleaning sand by a centrifugal sand screening component, separating and recycling, filtering the remaining muddy water, separating mud paste bodies for further utilization, and further recycling the filtered clear water. The inclination of adjustment hang plate and first screen cloth, both form certain cooperation, make mud sand and stone carry out certain separation on the hang plate earlier in getting into the initial building aggregate of grit separation subassembly, then the mud sand sieve of getting into first screen cloth moves down and gets into first screen cloth lower part, and the stone is blockked on first screen cloth and rolls to the grit separation subassembly outside.

Compared with the prior art, the invention has the beneficial effects that:

1: the method can realize the flushing separation of the waste slurry generated by the cast-in-situ bored pile and the green cyclic comprehensive utilization of the silt, has a simple integral structure, and can avoid the phenomena of environmental pollution and the like.

2: the cooperation between hang plate, the first screen cloth and the rivers spray tube has realized the quickly separating of silt particle and stone, avoids gathering materials to block up the screen cloth.

3: the impeller rotates in the centrifugal sand screening water tank, so that water in the centrifugal sand screening water tank is in fluctuation, mud and sand are cleaned, lighter soil particles flow upwards along with water flow and float on the upper part of a water layer, and sand is precipitated at the bottom of the centrifugal sand screening water tank.

4: the system successfully solves the problem of environmental pollution caused by the traditional slurry treatment process, and can reduce the consumption of sandstone in construction engineering.

5: the invention realizes the recycling of separated finished sand and clear water, reduces energy consumption and improves environmental protection efficiency.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the configuration of the hydraulic separation apparatus of the present invention;

FIG. 3 is a schematic top view of a hydrodynamic separation device according to the present invention;

FIG. 4 is a schematic diagram of a rear view of the hydraulic separation apparatus of the present invention;

FIG. 5 is a schematic view of the construction of the water filtering device of the present invention;

fig. 6 is a schematic top view of the water filtering device of the present invention;

the labels in the figure are: 1-a hydraulic separation device, 2-a water filtering device, 3-a conveying device, 4-a sand-stone separation component, 5-a centrifugal sand screening component, 6-an overflow pipe, 7-a first shell, 8-an inclined plate, 9-a flushing tank, 10-a primary screen, 11-a water spray pipe, 12-a second shell, 13-an impeller, 14-a rotating shaft, 15-a bearing, 16-a sand shoveling bucket, 17-a first discharge port, 18-a platform, 19-a support strip, 20-a guard rail, 21-a ladder stand, 22-a reinforcing strip, 23-a spoke, 24-a second discharge port, 25-a tank body, 26-a filter layer, 27-a liquid level sensor, 28-an axial flow fan, 29-a mud settling platform, 30-a water inlet and 31-a water outlet, 32-ramp, 33-first filter plate, 34-second filter plate, 35-third filter plate, 36-controller, 37-water inlet valve.

Detailed Description

The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.