阅读说明：本技术 一种土压平衡盾构泥岩渣土固化处理装置、系统及方法 (Earth pressure balance shield mudstone muck solidification treatment device, system and method ) 是由 王国义 贾丁 贺蕾铭 靳利安 彭贵才 李宁 刘秀争 于 2021-07-13 设计创作，主要内容包括：本发明公开了一种土压平衡盾构泥岩渣土固化处理装置,包括：渣土压滤固化结构：包括驱动机构、过滤机构和渣土固化桶,用于对渣土进行压滤处理；驱动机构：与过滤机构相连,提供压滤渣土的动力；过滤机构：用于挤压渣土和/或排出渣土中的水分；渣土固化桶：渣土容器,与过滤机构配合挤压渣土。本发明还公开了一种土压平衡盾构泥岩渣土固化处理系统及处理方法。本发明的效果是：彻底改变了渣土处理的方式,将含水渣土进行预处理,排出水分后再将固化的渣土清理掉,处理方式新颖,渣土成为固态,可以直接回填再利用或弃置,解决了流塑状态渣土弃置难、成本高的难题。(The invention discloses a mud rock muck curing treatment device for a soil pressure balance shield, which comprises: sediment filter-pressing solidification structure: the device comprises a driving mechanism, a filtering mechanism and a muck curing barrel, and is used for carrying out filter pressing treatment on muck; a driving mechanism: the filter mechanism is connected with the filter mechanism to provide power for filter pressing of the residue soil; a filtering mechanism: the device is used for extruding the muck and/or discharging water in the muck; and (3) a residue soil solidification barrel: and the residue soil container is matched with the filtering mechanism to extrude residue soil. The invention also discloses a soil pressure balance shield mudstone muck curing treatment system and a treatment method. The invention has the following effects: the method thoroughly changes the mode of muck treatment, pretreats the water-containing muck, and cleans the solidified muck after discharging water, has novel treatment mode, can directly backfill and recycle or abandon the muck to be solid, and solves the problems of difficult abandonment and high cost of the muck in a flow plastic state.)

1. The utility model provides a soil pressure balance shield mud rock dregs solidification processing apparatus which characterized in that includes:

sediment filter-pressing solidification structure: the device comprises a driving mechanism, a filtering mechanism and a muck curing barrel, and is used for carrying out filter pressing treatment on muck;

a driving mechanism: the filter mechanism is connected with the filter mechanism to provide power for filter pressing of the residue soil;

a filtering mechanism: the device is used for extruding the muck and/or discharging water in the muck;

and (3) a residue soil solidification barrel: and the residue soil container is matched with the filtering mechanism to extrude residue soil.

2. The earth pressure balance shield mudstone and muck solidification treatment device according to claim 1, further comprising a slag storage hopper: the device is arranged above the residue soil filter pressing solidification structure and used for collecting residue soil generated by the shield.

3. The earth pressure balance shield mudstone and muck solidification processing device as claimed in claim 1 or 2, wherein the filter mechanism comprises a first filter device and a second filter device, the first filter device is arranged at the end of the driving mechanism, and the second filter device is arranged at one side of the muck solidification barrel.

4. The earth pressure balance shield mudstone and muck solidification treatment device as claimed in claim 3, wherein a muck solidification barrel is provided with a slag storage hopper inlet, and the slag storage hopper inlet is positioned on the barrel wall of the muck solidification barrel between the first filter device and the second filter device before filter pressing.

5. The earth pressure balance shield mudstone and soil solidification treatment device as claimed in claim 1 or 4, wherein the driving mechanism comprises a main hydraulic cylinder, and a hydraulic rod of the main hydraulic cylinder is connected with the first filtering device of the filtering mechanism.

6. The earth pressure balance shield mudstone and muck solidification treatment device as claimed in claim 5, wherein a follower bucket is arranged outside the main hydraulic cylinder, and the follower bucket is connected with the first filtering device.

7. The earth pressure balance shield mudstone and muck solidification treatment device as claimed in claim 5, wherein the driving mechanism further comprises an auxiliary hydraulic cylinder, and a hydraulic rod of the auxiliary hydraulic cylinder is connected with the second filtering device of the filtering mechanism.

8. The earth pressure balance shield mudstone and muck solidification treatment device as claimed in claim 3, wherein the first filtering device comprises a first fixing plate, a first water filtering cloth and a first extrusion main plate, the first water filtering cloth is arranged between the first fixing plate and the first extrusion main plate, and the first fixing plate and the first extrusion main plate are both provided with water through holes;

the second filter equipment includes that the second fixed plate, second filter cloth and second extrude the mainboard, and the second filter cloth sets up between second fixed plate and second extrusion mainboard, all is provided with the limbers on second fixed plate and the second extrusion mainboard.

9. The earth pressure balance shield mudstone and soil solidification processing system based on the device of claim 1 is characterized by comprising a high-pressure oil outlet module, a protection module and an execution module;

the high-pressure oil outlet module: the protection module is connected with the oil tank and provides high-pressure oil;

a protection module: the bypass switching valve and the overflow valve are connected in parallel and connected to the oil tank;

an execution module: the protection module is connected with a main pipeline of the protection module and comprises a main execution mechanism and an auxiliary execution mechanism;

the main actuating mechanism comprises a first four-way valve, a regulating valve and a main hydraulic cylinder, the first four-way valve is connected with a main pipeline of the protection module, and the first four-way valve is also connected with the main hydraulic cylinder; a branch is connected to a pipeline between the main hydraulic cylinder and the first four-way valve, and a regulating valve is arranged on the branch; the regulating valve and the first four-way valve are connected to an oil tank;

the auxiliary actuating mechanism comprises a second four-way valve and an auxiliary hydraulic cylinder, the second four-way valve is connected with the auxiliary hydraulic cylinder, and the second four-way valve is also connected to the oil tank.

10. A soil pressure balance shield mudstone muck solidification treatment method is characterized in that,

the feeding process comprises the following steps: the hydraulic rod of the main hydraulic cylinder is started to extend out, and the slag soil in the slag soil solidification barrel below the slag storage hopper is inwards extruded by the hydraulic rod of the main hydraulic cylinder;

and (3) filter pressing process: when the position of the first filtering device exceeds the material inlet of the slag hopper, the closed space in the curing barrel gradually becomes smaller, the slag soil is extruded, and free water in the slag soil enters the follow-up barrel and the water passing barrel through the first filtering device and the second filtering device respectively;

the feeding process comprises the following steps: after solidification for a certain time, the hydraulic rod of the auxiliary hydraulic cylinder extends out, the hydraulic rod of the main hydraulic cylinder continues to extend out, and solidified muck is pushed out from the muck solidification barrel;

and (3) retraction process: when the hydraulic rod of the main hydraulic cylinder extends out to reach a set value, the hydraulic rod of the main hydraulic cylinder retracts, and the hydraulic rod of the hydraulic cylinder retracts.

Technical Field

The invention relates to soil dehydration, in particular to a soil pressure balance shield mudstone muck solidification treatment device, system and method.

Background

The shield method is widely applied to subways in various big cities by virtue of the advantages of safety, reliability, rapidness, economy, environmental protection and the like, and the shield machine mainly comprises an earth pressure balance shield and a muddy water balance shield. The earth pressure balance shield is increasingly applied to urban subway tunnel construction due to a plurality of advantages of low equipment cost, small occupied area of a construction well, low construction cost, quick construction progress and the like. The improved muck excavated by the earth pressure balance shield is in a plastic flowing state, has a low internal friction angle and a low permeability, and the muck special absorption field is abandoned by the earth pressure balance shield under the general condition. A large amount of muck needs the storage of muck digestion field, because the muck is in the flow plastic state, and is more rare, and the natural consolidation is very slow, and the muck digestion field space is limited, leads to that earth pressure balance shield constructs the muck and abandons the expense higher and not environmental protection, can not recycle. A large amount of plastic state dregs pile up and also can cause very big potential safety hazard, reportedly, certain city is because the shield constructs the dregs and piles up too high, takes place the incident of casualties. The shield muck is treated in part of cities, and the aims of dry muck, normal waste or backfill recycling, cost reduction and environmental protection are expected to be fulfilled.

The existing earth pressure balance shield muck solidification treatment device generally adopts a mud-water separation system to separate the muck of the earth pressure balance shield, firstly, water is added into the muck for dilution, large particle size and sand are separated by adopting a vibrating screen, and mud is pressed into cakes by adopting a filter press. When the shield muck contains more pebbles or sands and has less fine particles, more vibration sieves are used for separating, the residual mud is subjected to pressure filtration, the equipment and the construction process are mature, and the treatment method is simple and effective. But the shield constructs that the mud rock dregs contain the fine particle (being less than 0.075mm) more, and the pressure filter efficiency that uses is lower now, needs a large amount of pressure filters to carry out the filter-pressing, leads to equipment area big, drops into pressure filter equipment quantity many, and construction cost is high. An effective muck solidification treatment method for muck of an earth pressure balance shield containing more fine particles (less than 0.075mm) is not available so far, and can solve the problems of high safety risk of muck accumulation, high cost of waste slag and difficulty in reaching standards in environmental protection.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a device, a system and a method for solidifying muck of a soil pressure balance shield.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a soil pressure balance shield mud rock dregs solidification treatment device, includes:

sediment filter-pressing solidification structure: the device comprises a driving mechanism, a filtering mechanism and a muck curing barrel, and is used for carrying out filter pressing treatment on muck;

a driving mechanism: the filter mechanism is connected with the filter mechanism to provide power for filter pressing of the residue soil;

a filtering mechanism: the device is used for extruding the muck and/or discharging water in the muck;

and (3) a residue soil solidification barrel: and the residue soil container is matched with the filtering mechanism to extrude residue soil.

As a preferred mode, the invention further comprises a slag storage hopper: the device is arranged above the residue soil filter pressing solidification structure and used for collecting residue soil generated by the shield.

Preferably, the filter mechanism comprises a first filter device and a second filter device, the first filter device is arranged at the end of the driving mechanism (the hydraulic rod of the main hydraulic cylinder), and the second filter device is arranged at one side of the residue soil solidification barrel.

Preferably, a slag storage hopper feeding port is arranged on the slag solidification barrel, and before filter pressing, the slag storage hopper feeding port is positioned on the barrel wall of the slag solidification barrel between the first filtering device (when the hydraulic rod of the main hydraulic cylinder is fully retracted) and the second filtering device and is close to the first filtering device.

Preferably, the drive mechanism comprises a master cylinder, and a hydraulic rod of the master cylinder is connected to the first filter device of the filter mechanism.

Preferably, a follow-up barrel is arranged outside the main hydraulic cylinder and connected with the first filtering device.

Preferably, the drive mechanism further comprises an auxiliary hydraulic cylinder, and a hydraulic rod of the auxiliary hydraulic cylinder is connected with the second filter device of the filter mechanism.

Preferably, the number of the auxiliary hydraulic cylinders is two, and the two auxiliary hydraulic cylinders are respectively installed on two sides of the residue soil solidification barrel.

Preferably, a water passing bucket is arranged behind the second filtering device, and the water passing bucket is fixed with the second filtering device.

Preferably, the first filtering device comprises a first fixing plate, a first water filtering cloth and a first extrusion main plate, the first water filtering cloth is arranged between the first fixing plate and the first extrusion main plate, and the first fixing plate and the first extrusion main plate are both provided with water through holes;

the second filter equipment includes that the second fixed plate, second filter cloth and second extrude the mainboard, and the second filter cloth sets up between second fixed plate and second extrusion mainboard, all is provided with the limbers on second fixed plate and the second extrusion mainboard.

A mud rock muck curing treatment system for a soil pressure balance shield comprises a high-pressure oil outlet module, a protection module and an execution module;

the high-pressure oil outlet module: the protection module is connected with the oil tank and provides high-pressure oil;

a protection module: the bypass switching valve and the overflow valve are connected in parallel and connected to the oil tank;

an execution module: the protection module is connected with a main pipeline of the protection module and comprises a main execution mechanism and an auxiliary execution mechanism;

the main actuating mechanism comprises a first four-way valve, a regulating valve and a main hydraulic cylinder, the first four-way valve is connected with a main pipeline of the protection module, and the first four-way valve is also connected with the main hydraulic cylinder; a branch is connected to a pipeline between the main hydraulic cylinder and the first four-way valve, and a regulating valve is arranged on the branch; the regulating valve and the first four-way valve are connected to an oil tank;

the auxiliary actuating mechanism comprises a second four-way valve and an auxiliary hydraulic cylinder, the second four-way valve is connected with the auxiliary hydraulic cylinder, and the second four-way valve is also connected to the oil tank.

A soil pressure balance shield mudstone muck curing treatment method comprises the following steps:

the feeding process comprises the following steps: the hydraulic rod of the main hydraulic cylinder is started to extend out, and the slag soil in the curing barrel below the slag storage hopper is inwards extruded by the hydraulic rod of the main hydraulic cylinder;

and (3) filter pressing process: when the position of the first filtering device exceeds the material inlet of the slag hopper, the closed space in the curing barrel gradually becomes smaller, the slag soil is extruded, and free water in the slag soil enters the follow-up barrel and the water passing barrel through the first filtering device and the second filtering device respectively;

the feeding process comprises the following steps: after solidification for a certain time, the hydraulic rod of the auxiliary hydraulic cylinder extends out, the hydraulic rod of the main hydraulic cylinder continues to extend out, and solidified muck is pushed out from the muck solidification barrel;

and (3) retraction process: when the hydraulic rod of the main hydraulic cylinder extends out to reach a set value, the hydraulic rod of the main hydraulic cylinder retracts, and the hydraulic rod of the hydraulic cylinder retracts.

The invention has the beneficial effects that: the method thoroughly changes the mode of muck treatment, pretreats the water-containing muck, and cleans the solidified muck after discharging water, has novel treatment mode, can directly backfill and recycle or abandon the muck to be solid, and solves the problems of difficult abandonment and high cost of the muck in a flow plastic state.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a front view of a muck solidification apparatus;

FIG. 2 is a top view of the muck solidification apparatus;

FIG. 3 is a side view of a muck solidification apparatus;

FIG. 4 is a schematic view of a first partial structure of a first filter device;

FIG. 5 is a schematic view of a second partial structure of the second filter device;

fig. 6 is a hydraulic system diagram of a muck solidification device.

In the figure, 1-a main hydraulic cylinder, 2-a second pneumatic ball valve, 3-a follow-up barrel, 4-a ball hinge, 5-a first filtering device, 6-a slag storage hopper, 7-a slag solidification barrel, 8-an auxiliary hydraulic cylinder, 9-a pin shaft, 10-a first pneumatic ball valve, 11-a water passing barrel, 12-a third pneumatic ball valve, 13-a second filtering device, 14-a first part, 15-a second part, 16-a water collecting tank, 17-a fourth pneumatic ball valve, 201-a first water through hole, 202-a first fixing plate, 203-a first water filtering cloth, 204-a first extrusion main plate, 205-a second water through hole, 206-a bolt, 301-a fourth water through hole, 302-a second fixing plate, 303-a second water filtering cloth, 304-a second extrusion main plate, 305-a third through water hole, 306-a bolt B, 401-a hydraulic oil tank, 402-a filter element, 403-a first stop valve, 404-a hydraulic pump, 405-an overflow valve, 406-a two-position two-way valve, 407-a one-way valve, 408-a first three-position four-way valve, 409-a hydraulic lock, 410-a second three-position four-way valve, 411-a stroke sensor, 412-a pressure sensor, 413-an electromagnetic proportional pressure regulating valve, 414-a second stop valve and 415-a hydraulic pressure gauge.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" should be construed broadly and include, for example, fixed connections, detachable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the presence of a first feature above or below a second feature may encompass both the first and second features being in direct contact, and also may encompass both the first and second features being in contact, not being in direct contact, but rather being in contact with another feature therebetween. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. Including a first feature being directly below and obliquely below a second feature, or simply indicating that the first feature is at a lesser elevation than the second feature, if present below, under or below the second feature.

Example one

As shown in fig. 1-3, an earth pressure balance shield mud rock muck solidification processing device includes:

sediment filter-pressing solidification structure: comprises a driving mechanism, a filtering mechanism and a muck curing barrel 7, and is used for carrying out filter pressing treatment on muck;

a driving mechanism: the filter mechanism is connected with the filter mechanism to provide power for filter pressing of the residue soil;

a filtering mechanism: the device is used for extruding the muck and/or discharging water in the muck;

and (3) a residue soil solidification barrel 7: the residue soil container is matched with the filtering mechanism to extrude residue soil;

after the dregs to be treated enter the dregs solidification barrel 7, the driving mechanism drives the filtering mechanism to move, the filtering mechanism acts on the dregs, and water in the dregs is discharged from a water through hole on the filtering mechanism. The slag soil solidification treatment device can directly extrude weak bound water (which can be converted into free water under a pressure state) and free water in the slag soil in a flow molding state, the slag soil becomes a solid state and can be directly backfilled for reuse or abandon, and the problems of difficult abandon and high cost of the slag soil in the flow molding state are solved. Chemical materials in the slag soil are extruded along with free water in the filter pressing process, so that the slag soil is more environment-friendly. The muck solidification treatment device has small occupied area and simple and practical equipment, and can be popularized and applied nationwide.

Example two

The invention also comprises a slag storage hopper 6: the device is arranged above the residue soil filter-pressing curing structure and used for collecting the mudstone residue soil generated by the shield. The slag storage hopper 6 is arranged on one side of the slag soil solidification barrel 7, so that filter pressing is facilitated. The slag solidification barrel 7 is provided with a slag storage hopper 6 feeding port, and the slag storage hopper 6 feeding port is arranged on the barrel wall of the slag solidification barrel 7 between the first filtering device 5 (when the hydraulic rod of the main hydraulic cylinder 1 is fully retracted) and the second filtering device 13 and is close to the first filtering device 5.

The section of the slag soil solidification barrel 7 is of a circular structure and is welded and fixed with the slag storage hopper 6, and the slag soil solidification barrel 7 is communicated with the slag storage hopper 6.

The filtering mechanism comprises a first filtering device 5 and a second filtering device 13, and the first filtering device 5 (when the hydraulic rod of the main hydraulic cylinder 1 is fully retracted) and the second filtering device 13 are respectively arranged at two sides of the residue soil solidification barrel 7. The slag storage hopper 6 is arranged at one side close to the first filtering device 5, and the first filtering device 5 can push the slag to move. For example, when the first filter device 5 exceeds the material inlet and no gap exists in the residue soil solidification barrel 7, residue soil filter pressing is started.

EXAMPLE III

The driving mechanism comprises a main hydraulic cylinder 1, and a hydraulic rod of the main hydraulic cylinder 1 is connected with a first filtering device 5 of the filtering mechanism and used for driving the first filtering device 5 to move.

The drive mechanism further comprises an auxiliary hydraulic cylinder 8, the hydraulic rod of the auxiliary hydraulic cylinder 8 being connected to the second filter device 13 of the filter mechanism for moving the second filter device 13. The second filtering device 13 and the muck curing barrel 7 are opened and closed through the extension and retraction of hydraulic rods of two auxiliary hydraulic cylinders 8.

Further, the number of the auxiliary hydraulic cylinders 8 is two, and the two auxiliary hydraulic cylinders 8 are respectively installed on two sides of the residue soil solidification barrel 7. The upper parts of the residue soil solidification barrel 7 and the second filtering device 13 are connected through components such as a pin shaft 9, and the second filtering device 13 and the residue soil solidification barrel 7 are opened and closed through the extension and retraction of the hydraulic rods of the two auxiliary hydraulic cylinders 8. Due to the pin 9 and the hydraulic rod of the auxiliary hydraulic cylinder 8, the second filter device 13 rotates around the pin 9 when being opened or closed.

Example four

The back of the second filtering device 13 is provided with a water passing barrel 11, and the water passing barrel 11 is fixed with the second filtering device 13.

EXAMPLE five

The servo barrel 3 is arranged outside the main hydraulic cylinder 1, the servo barrel 3 is connected with the first filtering device 5, when a hydraulic rod of the main hydraulic cylinder 1 extends out or retracts, the servo barrel 3 and the first filtering device 5 extend out or retract at the same time, the servo barrel 3 slides on the outer surface of the main hydraulic cylinder 1, and sealing is designed to prevent water or air in the servo barrel 3 from overflowing. The hydraulic rod of the main hydraulic cylinder 1 is connected with the first filtering device 5 through the spherical hinge 4, and the hydraulic rod of the main hydraulic cylinder 1 and the first filtering device 5 can swing at a small angle in the process of solidifying the slag soil.

EXAMPLE six

As shown in fig. 4, which is a schematic structural view of the first part 14 of the first filtering device 5, the first filtering device 5 includes a first fixing plate 202, a first water-filtering cloth 203 and a first extruding main plate 204, the first water-filtering cloth 203 is disposed between the first fixing plate 202 and the first extruding main plate 204, both the first fixing plate 202 and the first extruding main plate 204 are provided with water through holes (the diameter of the water through holes is as small as possible to prevent the water-filtering cloth from being damaged by pressure, the diameter of the second water through holes 205 on the first extruding main plate 204 can be generally 1.5-2 mm; the first fixing plate 202 is made of a circular steel plate, a plurality of first water through holes 201 are drilled on the circular steel plate, and the diameter of the first water through holes 201 on the first fixing plate 202 can be 5-10 mm).

As shown in fig. 5, which is a schematic view of a second local 15 structure of the second filtering device 13, the second filtering device 13 includes a second fixing plate 302, a second water-filtering cloth 303 and a second pressing main plate 304, the second water-filtering cloth 303 is disposed between the second fixing plate 302 and the second pressing main plate 304, both the second fixing plate 302 and the second pressing main plate 304 are provided with water through holes (the diameter of the water through holes is as small as possible to prevent the water-filtering cloth from being damaged by pressure, the diameter of the third water through holes 305 on the second pressing main plate 304 can be generally 1.5-2 mm; the second fixing plate 302 is made of a circular steel plate, a plurality of fourth water through holes 301 are drilled on the circular steel plate, and the diameter of the fourth water through holes 301 on the second fixing plate 302 can be 5-10 mm).

Further, the first extruded main plate 204 and/or the second extruded main plate 304 are made of a circular steel plate, and the circular outer surface of the first extruded main plate 204 is in clearance fit with the inner surface of the muck curing bucket 7 (the clearance is generally 0.2 mm).

Installation of the first filter device 5: the first water filter cloth 203 is first pressed flat against the surface of the first pressing main plate 204, and then the first fixing plate 202 is pressed flat against the surface of the water filter cloth, and finally fixed together by a plurality of bolts a 206. When the first water filter cloth 203 is damaged, the first water filter cloth 203 can be detached and a new one can be installed.

Installation of the second filter device 13: the second filter cloth 303 is first pressed flat against the surface of the second pressing main plate 304, and then the second fixing plate 302 is pressed flat against the surface of the filter cloth, and finally fixed together by a plurality of bolts B306. When the second water filter cloth 303 is damaged, the second water filter cloth 303 can be detached and a new one can be installed.

EXAMPLE seven

Set up first intake pipe on crossing water bucket 11, install first valve (like first pneumatic ball valve 10) in the first intake pipe, set up the second intake pipe in follow-up bucket 3, install the second valve (like second pneumatic ball valve 2) in the second intake pipe.

The water passing barrel 11 is provided with a first water outlet pipe, the first water outlet pipe is provided with a third valve (such as a third pneumatic ball valve 12), the follow-up barrel 3 is provided with a second water outlet pipe, and the second water outlet pipe is provided with a fourth valve (such as a fourth pneumatic ball valve 17). And an air inlet pipe and a corresponding valve are arranged, so that air inlet is facilitated. The water outlet pipe and the corresponding valve are arranged, so that water can be drained conveniently.

Example eight

The slag solidification process of the slag solidification device comprises the following steps: the hydraulic rod of the auxiliary hydraulic cylinder 8 retracts, and the space between the water filtering device and the muck curing barrel 7 is closed. The slag in the slag hopper is poured into the slag storage hopper 6 by adopting a gantry crane. When the hydraulic rod of the main hydraulic cylinder 1 retracts, the servo barrel 3 retracts, the slag storage hopper 6 is communicated with the slag solidification barrel 7, and the slag falls into the slag solidification barrel 7 under the action of gravity. The main hydraulic cylinder 1 is started, the hydraulic rod extends out, and after the follow-up barrel 3 isolates the communicating part of the slag storage hopper 6 and the slag solidification barrel 7, the slag in the slag solidification barrel 7 is continuously compressed. When the hydraulic rod of the main hydraulic cylinder 1 moves forwards continuously, the muck is filled in the closed space of the muck curing barrel 7, the muck is pressed, weak combined water in the muck is pressed and converted into free water, and the free water in the original muck bear the extrusion force of the main hydraulic cylinder 1. The free water respectively passes through the first water through hole 201 or the fourth water through hole 301, the first water filtering cloth 203 or the second water filtering cloth 303, the second water through hole 205 or the third water through hole 305, overflows into the follow-up bucket 3 or the water passing bucket 11, and flows into the water collecting tank 16 through the fourth pneumatic ball valve 17 or the third pneumatic ball valve 12 which is opened. Along with the extrusion of the main hydraulic cylinder 1, free water in the muck curing barrel 7 is extruded out, and the muck is gradually dried. When the slag soil extrusion reaches the normal abandoning or backfilling recycling state, the hydraulic rod of the auxiliary hydraulic cylinder 8 extends out, the second water filtering device 13 is opened, and the hydraulic rod of the main hydraulic cylinder 1 moves forwards continuously to push out the solidified slag soil. Then, the hydraulic rod of the main hydraulic cylinder 1 and the hydraulic rod of the auxiliary hydraulic cylinder 8 retract, the third pneumatic ball valve 12 and the fourth pneumatic ball valve 17 are closed, the second pneumatic ball valve 2 and the first pneumatic ball valve 10 are opened, high-pressure gas enters the follow-up bucket 3 and the water passing bucket 11, the high-pressure gas blows the first water filtering cloth 203 and the second water filtering cloth 303 through the second through hole 205 and the third through hole 305, residual soil on the first water filtering cloth 203 and the second water filtering cloth 303 is blown clean, the next time water filtering is continued, then the second pneumatic ball valve 2 and the first pneumatic ball valve 10 are closed, and the fourth pneumatic ball valve 17 and the third pneumatic ball valve 12 are opened. And when the hydraulic rods of the main hydraulic cylinder 1 and the auxiliary hydraulic cylinder 8 are retracted, the next muck solidification process is started.

Example nine

The earth pressure balance shield mudstone muck curing treatment system comprises a high-pressure oil outlet module, a protection module and an execution module;

the high-pressure oil outlet module: the protection module is connected with the oil tank and provides high-pressure oil;

a protection module: a bypass switch valve and an overflow valve 405 are arranged, and the bypass switch valve and the overflow valve 405 are connected in parallel and connected to the oil tank;

an execution module: the protection module is connected with a main pipeline of the protection module and comprises a main execution mechanism and an auxiliary execution mechanism;

the main actuating mechanism comprises a first four-way valve, a regulating valve and a main hydraulic cylinder 1, the first four-way valve is connected with a main pipeline of the protection module, and the first four-way valve is also connected with the main hydraulic cylinder 1; a branch is connected to a pipeline between the main hydraulic cylinder 1 and the first four-way valve, and a regulating valve is arranged on the branch; the regulating valve and the first four-way valve are connected to an oil tank; the auxiliary actuating mechanism comprises a second four-way valve and an auxiliary hydraulic cylinder 8, the second four-way valve is connected with the auxiliary hydraulic cylinder 8, and the second four-way valve is also connected to an oil tank.

Example ten

The hydraulic system (earth pressure balance shield mudstone muck solidification processing system) of the muck solidification device has the working flow:

referring to fig. 6, the hydraulic pump 404 is activated, hydraulic oil enters the low pressure port of the hydraulic pump 404 from the hydraulic tank 401 through the filter element 402 and the first stop valve 403, and high pressure oil exits the low pressure port and returns to the tank through the two-position two-way valve 406 (bypass valve). When the master hydraulic cylinder 1 is started to extend (the valve core of the first three-position four-way valve 408 (namely, the first four-way valve) is in the right position), the two-position two-way valve 406 is electrified, the high-pressure oil does not return to the oil tank any more, enters the rodless cavity of the master hydraulic cylinder 1 through the check valve 407, the hydraulic pressure gauge 415, the second stop valve 414 and the first three-position four-way valve 408, the hydraulic rod extends, and the hydraulic oil with the rod cavity flows to the oil tank. When the master cylinder 1 starts to retract (the spool of the first three-position four-way valve 408 is in the left position), the hydraulic rod of the master cylinder 1 retracts. In the working process of the master cylinder 1, the pressure sensor 412 displays the pressure of the hydraulic oil in the rodless cavity, the electromagnetic proportional pressure regulating valve 413 regulates the pressure of the hydraulic oil in the rodless cavity, and the stroke sensor 411 is installed in the master cylinder 1 and can measure the stroke of the hydraulic rod of the master cylinder 1 in real time. When the auxiliary hydraulic cylinder 8 is started to extend (the valve core of the second three-position four-way valve 410 (namely, the second four-way valve) is positioned at the right position), the two-position two-way valve 406 is electrified, the high-pressure oil does not return to the oil tank any more, and enters the rodless cavity of the auxiliary hydraulic cylinder 8 through the one-way valve 407, the hydraulic pressure gauge 415, the second stop valve 414, the second three-position four-way valve 410 and the hydraulic lock 409 (the hydraulic lock 409 is arranged between the second four-way valve and the auxiliary hydraulic cylinder 8), the hydraulic rod of the auxiliary hydraulic cylinder 8 extends (the second filtering device 13 is opened), and the hydraulic oil in the rod cavity flows back to the oil tank. When the assist cylinder 8 starts to retract (the spool of the second three-position four-way valve 410 is in the left position), the hydraulic rod of the assist cylinder 8 retracts (the second filter device 13 is turned off). The hydraulic lock 409 can ensure that the rod chamber and the rodless chamber of the auxiliary hydraulic cylinder 8 are both provided with pressure oil, and when no high-pressure oil enters, the auxiliary hydraulic cylinder 8 is in a locking state. The overflow valve 405 can ensure that the hydraulic oil pressure of the hydraulic pump 404 is in a normal range, and when the hydraulic oil pressure exceeds a limit value, the overflow valve 405 automatically overflows to protect the hydraulic pump 404.

EXAMPLE eleven

A soil pressure balance shield mudstone muck solidification treatment method comprises the following steps:

as shown in fig. 1 to 6, on the premise of ensuring that the slag storage hopper 6 always has slag, the slag solidification device can adopt the following control method: the hydraulic pump 404 is started, the two-position two-way valve 406 is electrified, the stroke of the stroke sensor 411 is detected, when the stroke is 0, the hydraulic rod of the auxiliary hydraulic cylinder 8 automatically retracts, the hydraulic rod of the main hydraulic cylinder 1 extends out, meanwhile, the electromagnetic proportional pressure regulating valve 413 is regulated to a set pressure value, the third pneumatic ball valve 12 and the fourth pneumatic ball valve 17 are opened, the first pneumatic ball valve 10 and the second pneumatic ball valve 2 are closed, and the muck begins to solidify. When the solidification time is up (the time is set according to the actual solidification situation on site), the hydraulic rod of the auxiliary hydraulic cylinder 8 automatically extends out, the hydraulic rod of the main hydraulic cylinder 1 continuously extends out, and the solidified muck is pushed out from the muck solidification barrel 7. When the stroke sensor 411 reaches the maximum set value (all the slag in the slag solid barrel 7 is pushed out), the hydraulic rod of the main hydraulic cylinder 1 automatically retracts, meanwhile, the third pneumatic ball valve 12 and the fourth pneumatic ball valve 17 are closed, the first pneumatic ball valve 10 and the second pneumatic ball valve 2 are opened, and the hydraulic rod of the auxiliary hydraulic cylinder 8 automatically retracts. When the stroke of the stroke sensor 411 is retracted to 0, the third pneumatic ball valve 12 and the fourth pneumatic ball valve 17 are opened, the first pneumatic ball valve 10 and the second pneumatic ball valve 2 are closed, and the next muck curing treatment is continued.

Example twelve

The muck tunneled by the earth pressure balance shield is conveyed to the shield working well in the muck bucket by the battery truck, and the muck bucket is directly lifted to the ground by the gantry crane and poured into a muck storage bucket 6 in the solidification treatment device. The residue soil in the residue storage hopper 6 directly enters the residue soil solidification barrel 7 below the residue storage hopper 6 under the action of gravity. The filter pressing system oil pump (hydraulic pump 404) is started, hydraulic oil directly pushes the hydraulic rod of the main hydraulic cylinder 1, the hydraulic rod of the main hydraulic cylinder 1 pushes the first filtering device 5 to move forwards, the muck in the muck curing barrel 7 is pressed to deform, weak combined water in the muck is directly converted into free water to be extruded out through the filter cloth, all or most (more than 80%) of weak combined water in the muck is extruded out, the rear-end water filtering device (the second filtering device 13) of the muck curing barrel 7 is opened, and solid muck is pushed out. When all the solidified slag soil is pushed out, the hydraulic rod of the main hydraulic cylinder 1 moves backwards, the second filtering device 13 is closed, and residues on the first water filtering cloth 203 and the second water filtering cloth 303 are aerated and cleaned. And when the hydraulic rod of the main hydraulic cylinder 1 is completely retracted, the hydraulic rod extends out again, and the slag soil is continuously solidified. When no slag soil exists in the slag storage hopper 6 or the slag soil is close to the slag soil (30 percent or less than 30 percent of the capacity of the slag storage hopper 6), the gantry crane continues to hoist the slag soil into the slag storage hopper 6 and continues to solidify the slag soil.

The design of the muck solidification device requires attention to several problems:

(1) the solidification speed of the slag soil is matched with the slag discharging speed of the gantry crane, so that a slag pit does not need to be manufactured, and the solidified slag soil can be directly stacked on the ground;

(2) the muck solidification device is used for manufacturing a support frame according to the actual situation on site, and a travelling wheel is designed below the support frame, so that the traction and the transportation are facilitated;

(3) the first water filtering cloth 203 and the second water filtering cloth 303 belong to wearing parts, and can be quickly installed and detached when being designed;

(4) when the free water is slowly extruded and the solidification speed of the residue soil cannot meet the requirement, the wall of the residue soil solidification barrel 7 can be designed into a water filtering device;

(5) and the residue soil solidification device can also be additionally provided with a set of crushing device. When the solidification of the dregs is finished, the solidified dregs directly enter a crusher to crush the mudstone blocky bodies in the dregs, and the crushed dry dregs can also absorb a part of moisture, so that the dregs are drier and are more beneficial to backfill and reuse.

The residue soil curing device has the advantages that:

(1) the slag soil is directly poured into the slag storage hopper 6 through the gantry crane, a slag pit does not need to be made, and the cost for transporting the slag soil into the slag storage hopper 6 is saved;

(2) the method has the advantages of simple method, small equipment floor area and low treatment cost;

(3) after each filter pressing, the residue on the filter cloth is automatically cleaned by high-pressure air, so that the probability of filter cloth blockage is reduced;

(4) most of chemical materials contained in the foam in the muck are extruded along with free water in the muck extrusion and solidification process, so that the content of the chemical materials in the muck is greatly reduced, and the muck is more environment-friendly;

(5) and the filter pressing is realized by adopting the hydraulic cylinder, so that the noise is low, and the disturbance to people is avoided.

The foregoing is merely illustrative of some of the principles and functions of the earth pressure balance shield muck solidification apparatus, system and treatment method of the present invention and is not intended to limit the invention to the specific structures and applications shown and described, and therefore all modifications and equivalents that may be utilized are within the scope of the claims of the present invention, and in particular, a method of solidifying muck by direct pressure filtration of muck is within the scope of the invention.