CN220791235U - Full-underground shield residue soil recycling system - Google Patents

Abstract

The utility model discloses a full-underground shield residue soil recycling system, and belongs to the technical field of shield construction. The system consists of a chemical slurry screening system, a sand washing recovery system, a fine sand conveying and temporary storage system, a slurry adjusting system, a filter pressing system, a slurry mixing system, a slurry preparation and storage system, a control system and a moving device, wherein the systems are mutually matched to treat dregs generated by a shield so that the dregs can be applied to shield grouting or infrastructure, and the systems are all arranged on the moving device and can enter the ground and synchronously move along with shield tunneling. The full-underground shield muck recycling system provided by the utility model can carry out recycling treatment on shield muck, reduces environmental pollution, realizes reasonable utilization of resources, has reasonable structural design and does not occupy extra ground space.

Description

Full-underground shield residue soil recycling system

Technical Field

The utility model belongs to the technical field of shield construction, and particularly relates to a full-underground shield residue soil recycling system.

Background

Along with the continuous promotion of urban construction and underground pipeline construction, the shield machine is widely applied to underground tunnel construction. The shield tunneling machine can reduce damage to the surface environment, improve construction efficiency and shorten construction period. However, a large amount of dregs can be generated in the process of tunneling of the shield machine, and how to treat the dregs becomes one of important links in tunnel construction.

At present, the conventional landfill, dumping or outward transport treatment modes are generally adopted for the dregs generated by the tunneling of the shield machine, and the treatment modes not only waste resources, but also cause certain pollution to the environment. The shield residue soil treatment system constructed on the ground occupies a certain ground space, and the residue soil transportation consumes manpower and material resources. Therefore, a reasonable shield residue soil treatment mode is searched, environmental pollution is reduced, reasonable utilization of resources is realized, and the method is a problem to be solved in the field of tunnel construction shield construction.

Disclosure of Invention

Aiming at the defects existing in the related art, the utility model aims to provide a fully-underground shield muck recycling system which is arranged underground and can synchronously move along with the tunneling of a shield machine, and the muck generated by the shield is processed to be applied to shield grouting or infrastructure so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a fully underground shield residue soil recycling system comprises:

the slurry conversion screening system is provided with a feeding belt conveyor, and the feeding belt conveyor is arranged below a slag soil outlet of the shield machine so as to collect shield slag soil to the slurry conversion screening system which is used for cleaning and separating coarse particles in the slag soil;

the sand washing recovery system is communicated with a slurry outlet of the slurry dissolving and screening system and is used for separating fine sand from slurry;

the fine sand conveying and temporary storage system is communicated with a sand outlet of the sand washing recovery system and is used for conveying and temporarily storing fine sand;

the slurry adjusting system is communicated with a slurry outlet of the sand washing recovery system and is used for adjusting the concentration of slurry;

the filter pressing system is communicated with the high-concentration slurry outlet of the slurry adjusting system and is used for filter pressing slurry into mud cakes;

the mortar mixing system is communicated with a sand outlet of the fine sand conveying and temporary storage system, is communicated with a low-concentration slurry outlet of the slurry adjusting system and is used for mixing fine sand with slurry water;

the powder slurry mixing system is used for mixing the water-retaining thickener and the clear water;

the slurry inlet of the slurry preparation and storage system is respectively communicated with the slurry outlet of the slurry mixing system, the low-concentration slurry outlet of the slurry adjusting system and the slurry outlet of the powder slurry mixing system, and the slurry outlet of the slurry preparation and storage system is communicated with the shield machine, and the slurry preparation and storage system is used for mixing the slurry and the powder slurry;

the control system is respectively and electrically connected with the chemical slurry screening system, the sand washing recovery system, the fine sand conveying and temporary storage system, the slurry adjusting system, the filter pressing system, the mortar mixing system, the powder slurry mixing system and the pulping and storing system;

the device comprises a mobile device, a slurry dissolving and screening system, a sand washing and recycling system, a fine sand conveying and temporary storage system, a slurry adjusting system, a filter pressing system, a mortar mixing system, a slurry mixing system and a slurry preparing and storing system.

In some embodiments, the slurry dissolving and screening system further comprises a motor, a cylindrical screen, a spraying mechanism, a first lower water tank and a first slurry pump, wherein the cylindrical screen is connected with an output shaft of the motor, the spraying mechanism is arranged in the cylindrical screen, the first lower water tank is arranged below the cylindrical screen, the first slurry pump is arranged at an outlet of the lower water tank, and a slurry outlet of the slurry dissolving and screening system is communicated with the sand washing and recycling system through the first slurry pump.

In some embodiments, the sand washing recovery system comprises a wheel sand washer, a dewatering screen, a second lower water tank, a second slurry pump, a cyclone and a first belt conveyor, wherein a feed inlet of the wheel sand washer is communicated with a slurry outlet of the slurry dissolving and screening system through the first slurry pump, the dewatering screen is arranged below a discharge outlet of the wheel sand washer, the second lower water tank is arranged below the dewatering screen, the second slurry pump is arranged at an outlet of the second lower water tank, the cyclone is communicated with the second slurry pump, the cyclone is provided with a slurry outlet and a sand outlet, the slurry outlet of the cyclone is communicated with the slurry adjusting system, a sand inlet of the first belt conveyor is arranged below the sand outlet of the cyclone, and the sand outlet of the first belt conveyor is communicated with the fine sand conveying and temporary storage system.

In some embodiments, the fine sand conveying and temporary storage system comprises a first input screw, a fine sand temporary storage hopper and a first output screw which are sequentially connected, a sand inlet of the first input screw is arranged below a sand outlet of the first belt conveyor, and the sand outlet of the first output screw is communicated with the mortar mixing system.

In some embodiments, the slurry adjusting system comprises a settling tank and an adjusting tank, wherein a slurry inlet of the settling tank is communicated with a slurry outlet of the cyclone, a third slurry pump is arranged at an outlet of the settling tank, a high-concentration slurry outlet of the slurry adjusting system is communicated with the filter pressing system through the third slurry pump, the settling tank is provided with an overflow port communicated with the adjusting tank, the adjusting tank is provided with a feed inlet and a water inlet, a fourth slurry pump is arranged at an outlet of the adjusting tank, and a low-concentration slurry outlet of the slurry adjusting system is respectively communicated with a slurry inlet of the slurry mixing system and a slurry inlet of the slurry preparing and storing system through the fourth slurry pump.

In some embodiments, the filter pressing system comprises a concentration tank and a filter press, wherein the slurry inlet of the concentration tank is communicated with the high-concentration slurry outlet of the slurry adjusting system through a third slurry pump, and the discharge outlet of the concentration tank is communicated with the feed inlet of the filter press.

In some embodiments, the slurry mixing system includes a second input screw and a first slurry mixer, the sand outlet of the first output screw is in communication with the first slurry mixer through the second input screw, the first slurry mixer has a slurry inlet and a slurry outlet, the slurry inlet of the first slurry mixer is in communication with the low concentration slurry outlet of the slurry conditioning system, and the slurry outlet of the first slurry mixer is in communication with the slurry inlet of the slurry storage system.

In some of these embodiments, the sizing system further comprises a third belt conveyor disposed at the discharge port of the cylindrical screen.

In some embodiments, the fine sand conveying and temporary storage system further comprises a level gauge, wherein the level gauge is arranged in the fine sand temporary storage hopper.

In some of these embodiments, the slurry conditioning system further comprises a first concentration detector disposed within the conditioning tank.

Compared with the prior art, the utility model has the beneficial effects that:

1. the full-underground shield muck recycling system provided by the utility model can carry out recycling treatment on muck generated by a shield, so that the treated muck is applied to shield grouting or infrastructure, the material cost is saved, and the environment is protected.

2. The all systems in the fully underground shield muck recycling system provided by the utility model are arranged on the moving device, can enter the ground and synchronously move along with the tunneling of the shield machine, do not occupy extra ground space, and reduce the consumption of manpower and material resources by muck conveying turnover.

3. The control system included in the full-underground shield muck recycling system provided by the utility model can monitor and control the treatment process of the shield muck in real time, so that the safety of muck treatment is ensured, and the automation degree is high.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the fully underground shield muck recycling system of the present utility model;

FIG. 2 is a schematic diagram of the chemical sizing system of FIG. 1;

FIG. 3 is a schematic diagram of the sand washing recovery system of FIG. 1;

FIG. 4 is a schematic diagram of the fine sand transporting and temporary storage system in FIG. 1;

FIG. 5 is a schematic diagram of the slurry mixing system of FIG. 1;

FIG. 6 is a schematic diagram of the slurry conditioning system of FIG. 1;

FIG. 7 is a schematic diagram of the pressure filtration system of FIG. 1;

FIG. 8 is a schematic view of the water collection system of FIG. 1;

FIG. 9 is a schematic diagram of the pulping and storing system in FIG. 1;

FIG. 10 is a schematic diagram of the control system of FIG. 1;

FIG. 11 is a schematic diagram of the slurry mixing system of FIG. 1;

FIG. 12 is a control schematic block diagram of one embodiment of a fully underground shield muck recycling system of the present utility model;

FIG. 13 is a process flow diagram of one embodiment of a fully underground shield muck recycling system of the present utility model.

In the figure:

1. a sizing and screening system; 101. a feeding belt conveyor; 102. a motor; 103. a cylindrical screen; 104. a spraying mechanism; 105. a first lower water tank; 106. a first slurry pump; 107. a third belt conveyor; 2. a sand washing recovery system; 21. wheel type sand washer; 22. dewatering screen; 23. a second lower tank; 24. a second slurry pump; 25. a cyclone; 26. a first belt conveyor; 3. a fine sand conveying and temporary storage system; 31. a first input spiral; 32. fine sand temporary storage hopper; 321. a level gauge; 33. a first output screw; 4. a slurry conditioning system; 41. a precipitation tank; 42. an adjustment groove; 421. a first concentration detector; 43. a third slurry pump; 44. a fourth slurry pump; 5. a filter pressing system; 51. a concentrating tank; 52. a filter press; 53. a fifth slurry pump; 54. a second belt conveyor; 6. a water collection system; 61. a pool; 611. a second concentration detector; 62. a sixth slurry pump; 7. a mortar mixing system; 71. a second input spiral; 72. a first slurry mixer; 8. a slurry mixing system; 81. a third input spiral; 82. a second slurry mixer; 9. a pulping and storing system; 91. a pulping tank; 911. a first level gauge; 92. a slurry storage tank; 921. a second level gauge; 93. a seventh slurry pump; 10. a control system; 1001. a control room; 11. a mobile device; 111. a sensor; 12. and (5) a conveying vehicle.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 13, an exemplary embodiment of a fully underground type shield muck recycling system provided by the utility model is provided, and the fully underground type shield muck recycling system consists of a slurry sieving system 1, a sand washing recovery system 2, a fine sand conveying and temporary storage system 3, a slurry adjusting system 4, a filter pressing system 5, a water collecting system 6, a mortar mixing system 7, a slurry mixing system 8, a slurry making and storing system 9, a control system 10 and a moving device 11.

Referring to fig. 1, a slurry-melting screening system 1 is provided with a feeding belt conveyor 101, wherein the feeding belt conveyor 101 is arranged below a residue soil outlet of a shield machine to collect shield residue soil to the slurry-melting screening system 1, and the slurry-melting screening system 1 is used for cleaning and separating coarse particles in the residue soil. The sand washing recovery system 2 is communicated with a slurry outlet of the chemical slurry screening system 1, and the sand washing recovery system 2 is used for separating fine sand from slurry. The fine sand conveying and temporary storage system 3 is communicated with a sand outlet of the sand washing recovery system 2, and the fine sand conveying and temporary storage system 3 is used for conveying and temporarily storing fine sand. The slurry adjusting system 4 is communicated with a slurry outlet of the sand washing recovery system 2, and the slurry adjusting system 4 is used for adjusting the concentration of slurry. The filter pressing system 5 is communicated with the high-concentration slurry outlet of the slurry adjusting system 4, and the filter pressing system 5 is used for filter pressing slurry into mud cakes. The water inlet of the water collecting system 6 is communicated with the water outlet of the filter pressing system 5, and the water outlet of the water collecting system 6 is communicated with the water inlet of the slurry adjusting system 4. The mortar mixing system 7 is communicated with a sand outlet of the fine sand conveying and temporary storage system 3, the mortar mixing system 7 is communicated with a low-concentration slurry outlet of the slurry adjusting system 4, and the mortar mixing system 7 is used for mixing fine sand with slurry water. The slurry mixing system 8 is used for mixing the water retention thickener and the clear water, the slurry inlet of the slurry preparation and storage system 9 is respectively communicated with the slurry outlet of the slurry mixing system 7, the low-concentration slurry outlet of the slurry adjustment system 4 and the slurry outlet of the slurry mixing system 8, the slurry outlet of the slurry preparation and storage system 9 is communicated with the shield machine, and the slurry preparation and storage system 9 is used for mixing the slurry and the slurry. The systems are mutually matched to treat the dregs generated by the shield, so that the dregs can be applied to shield grouting or infrastructure, the environmental pollution is reduced, and the reasonable utilization of resources is realized.

In order to improve the overall automation degree of the system and make the mutual cooperation of the systems more reasonable, the embodiment also comprises a control system 10, wherein the control system 10 is electrically connected with the chemical slurry screening system 1, the sand washing recovery system 2, the fine sand conveying and temporary storage system 3, the slurry adjusting system 4, the filter pressing system 5, the water collecting system 6, the slurry mixing system 7, the slurry mixing system 8 and the slurry preparing and storing system 9 respectively. To protect the control system 10, the control system 10 is provided within the control room 1001, reducing the risk of damage to the control system 10 during its operation.

In order to save ground space and reduce manpower and material resources consumed by slag soil conveying, the embodiment further comprises a moving device 11, wherein the slurry dissolving and screening system 1, the sand washing and recycling system 2, the fine sand conveying and temporary storage system 3, the slurry adjusting system 4, the filter pressing system 5, the water collecting system 6, the slurry mixing system 7, the powder slurry mixing system 8, the slurry preparing and storing system 9 and the control system 10 are all arranged on the moving device 11 and can enter the ground along with the moving device 11 to synchronously move with shield tunneling, so that the ground occupation is saved, and the frequent conveying of shield slag soil to the ground is avoided. In some embodiments, the control system 10 may be provided separately, not on the mobile device 11.

In order to better control the mobile device 11 to maintain a set distance from the shield machine, in some embodiments, a sensor 111 is provided on the mobile device 11, and the sensor 111 is in signal connection with the control system 10. The sensor 111 is used for detecting the distance between the moving device 11 and the shield tunneling machine. When the sensor detects that the distance between the mobile device 11 and the shield tunneling machine is greater than the set distance, the control system sends an alarm signal, and a worker operates the mobile device 11 to travel to the set distance, so that the distance between the mobile device 11 and the shield tunneling machine is always kept within the set range, and normal operation of the system is ensured.

In order to better control the moving device 11 to keep a set distance from the shield machine, in some embodiments, the front end of the moving device is directly connected with the rear end of the shield machine through a traction rod, the shield machine is used as power, and the moving device is driven to synchronously advance in the advancing process of the shield machine, so that the distance between the shield machine and the moving device is kept unchanged.

Referring to fig. 2, the slurry screening system 1 further comprises a motor 102, a cylindrical screen 103, a spray mechanism 104, a first lower water tank 105, a first slurry pump 106 and a third belt conveyor 107. The motor 102 is electrically connected with the control system 10, and the cylindrical screen 103 is connected with an output shaft of the motor 102, so that the control system 10 controls the cylindrical screen 103 to operate. The spraying mechanism 104 is arranged in the cylindrical screen 103, the first lower water tank 105 is arranged below the cylindrical screen 103, the first slurry pump 106 is arranged at the outlet of the first lower water tank 105, and the slurry outlet of the slurry dissolving and screening system 1 is communicated with the sand washing recovery system 2 through the first slurry pump 106. A third belt conveyor 107 is positioned at the discharge opening of the cylindrical screen 103 to convey coarse particles screened out by the cylindrical screen 103. In order to ensure smooth slag soil treatment, the fully-underground shield slag soil recycling system provided by the embodiment further comprises a conveying vehicle 12. The slurry-melting screening system 1 can carry out preliminary screening treatment on shield slag, the screened coarse particles are conveyed away, the coarse particles can be directly used for producing other building materials, and the shield slag is subjected to subsequent treatment after preliminary screening, so that the efficiency is high.

Referring to fig. 3, the sand washing recovery system 2 comprises a wheel type sand washer 21, a dewatering screen 22, a second lower water tank 23, a second slurry pump 24, a cyclone 25 and a first belt conveyor 26, wherein a feed inlet of the wheel type sand washer 21 is communicated with a slurry outlet of the slurry dissolving and screening system 1 through the first slurry pump 106, the dewatering screen 22 is arranged below a discharge outlet of the wheel type sand washer 21, the second lower water tank 23 is arranged below the dewatering screen 22, the second slurry pump 24 is arranged at an outlet of the second lower water tank 23, the cyclone 25 is communicated with the second slurry pump 24, the cyclone 25 is provided with a slurry outlet and a slurry outlet, the slurry outlet of the cyclone 25 is communicated with the slurry adjusting system 4, a sand inlet of the first belt conveyor 26 is arranged below the slurry outlet of the cyclone 25, and the slurry outlet of the first belt conveyor 26 is communicated with the fine sand conveying temporary storage system 3. The sand washing recovery system 2 can carry out secondary screening treatment on shield slag soil, and respectively convey and treat screened fine sand and slurry so as to make full use of the fine sand and the slurry.

Referring to fig. 4, the fine sand conveying and temporary storage system 3 comprises a first input screw 31, a fine sand temporary storage hopper 32 and a first output screw 33 which are sequentially connected, a sand inlet of the first input screw 31 is arranged below a sand outlet of the first belt conveyor 26, and a sand outlet of the first output screw 33 is communicated with the mortar mixing system 7. Fine sand is input and output through the spiral, so that scattering and leakage in the conveying process can be avoided, and the fine sand temporary storage hopper 32 can store a certain amount of fine sand, so that the operation of the system is ensured. The fine sand temporary storage hopper 32 is also provided with a level indicator 321, and the level indicator 321 is in signal connection with the control system 10 so as to monitor the fine sand amount in the fine sand temporary storage hopper 32.

Referring to fig. 6, the slurry adjusting system 4 includes a settling tank 41 and an adjusting tank 42, wherein a slurry inlet of the settling tank 41 is communicated with a slurry outlet of the cyclone 25, a third slurry pump 43 is arranged at an outlet of the settling tank 41, a high-concentration slurry outlet of the slurry adjusting system 4 is communicated with the filter pressing system 5 through the third slurry pump 43, the settling tank 41 is provided with an overflow port communicated with the adjusting tank 42, the adjusting tank 42 is provided with a feed port and a water inlet, a water inlet of the adjusting tank 42 is communicated with a water outlet of the water collecting system 6, a fourth slurry pump 44 is arranged at an outlet of the adjusting tank 42, and a low-concentration slurry outlet of the slurry adjusting system 4 is respectively communicated with a slurry inlet of the slurry mixing system 7 and a slurry inlet of the slurry preparing and storing system 9 through the fourth slurry pump 44. And the slurry adjusting system 4 carries out precipitation treatment on the slurry, and respectively continuously transmits the upper layer liquid and the lower layer liquid for recycling.

Since the upper layer liquid is used for later pulping, the concentration of the upper layer liquid needs to be controlled within a reasonable range, and therefore, the first concentration detector 421 is arranged in the adjusting tank 42. The first concentration detector 421 is in signal connection with the control system 10, and when the first concentration detector 421 detects that the concentration in the adjustment tank 42 is higher than the set value, the control system 10 controls the water collection system 6 to add fresh water into the adjustment tank 42. When the first concentration detector 421 detects that the concentration in the adjustment tank 42 is lower than the set value, a signal is sent from the control system 10, and the transportation vehicle 12 transports the water-retention thickener to be added to the adjustment tank 42.

Referring to fig. 7, the filter pressing system 5 includes a concentration tank 51 and a filter press 52, a fifth slurry pump 53 is disposed at a water outlet of the concentration tank 51, a slurry inlet of the concentration tank 51 is communicated with a high-concentration slurry outlet of the slurry adjustment system 4 through a third slurry pump 43, a water outlet of the concentration tank 51 is communicated with the water collection system 6 through the fifth slurry pump 53, a discharge outlet of the concentration tank 51 is communicated with a feed inlet of the filter press 52, and a water outlet of the filter press 52 is communicated with the water collection system 6. The filter press 52 presses the concentrated slurry conveyed from the concentration tank 51 into mud cakes, a second belt conveyor 54 is arranged at the discharge port of the filter press 52, the pressed mud cakes fall onto the second belt conveyor 54 and are conveyed to the conveying vehicle 12 and then conveyed to the ground, the mud cakes can be mixed with mineral substances, clay and other components in the mud cakes after adding a proper amount of water to prepare building materials such as bricks and tiles, or the mud cakes can be dried and ground into powder and then added with a proper amount of materials such as polymers and cement to prepare environment-friendly materials with functions of high temperature resistance, water resistance, fire resistance and the like. The concentration tank 51 and the filter press 52 are integrally arranged, and a plunger pump and a diaphragm are adopted for filter pressing, so that the water content of mud cakes is low, and the filter pressing effect is ensured.

Referring to fig. 8, the water collection system 6 includes a water tank 61 and a sixth slurry pump 62, and the water inlet of the water tank 61 is respectively connected to the water outlets of the concentration tank 51 and the filter press 52 to collect clean water. The water outlet of the water tank 61 is communicated with the adjusting tank 42 through a sixth slurry pump 62 to supplement clean water when the slurry concentration in the adjusting tank 42 is too high. Since the clean water in the water reservoir 61 is collected by the filter press 52, there is no guarantee that the concentration will be satisfactory. A second concentration detector 611 is disposed in the water tank 61, and the second concentration detector 611 is in signal connection with the control system 10 to monitor the concentration of the clean water in the water tank 61 in real time.

Referring to fig. 5, the mortar mixing system 7 includes a second input screw 71 and a first mortar mixer 72, the sand outlet of the first output screw 33 is communicated with the first mortar mixer 72 through the second input screw 71, the first mortar mixer 72 has a mortar inlet and a mortar outlet, the mortar inlet of the first mortar mixer 72 is communicated with the low concentration mortar outlet of the mortar adjustment system 4, and the mortar outlet of the first mortar mixer 72 is communicated with the mortar inlet of the mortar storage system 9. The fine sand is conveyed to the first slurry mixer 72 by the second input screw 71, so that scattering and leakage in the conveying process can be avoided, and the fine sand and the slurry are mixed into mortar by the first slurry mixer 72 to prepare for subsequent pulping. In addition, in order to master the mortar amount entering the pulping and storing system 9, a flowmeter is further arranged in the mortar mixing system 7 and is in signal connection with the control system 10 so as to monitor the mortar flow in real time to optimize the proportion.

Referring to fig. 11, the slurry mixing system 8 includes a third input screw 81 and a second slurry mixer 82, and additives such as quicklime, fly ash, bentonite and the like are conveyed into the second slurry mixer 82 by the conveying vehicle 12, and mixed with clean water according to a certain proportion to prepare slurry for subsequent pulping.

Referring to fig. 9, the pulping and storing system 9 includes a pulping tank 91, a storing tank 92, and a seventh slurry pump 93. The slurry inlet of the slurry tank 91 is respectively communicated with the slurry outlet of the first slurry mixer 72, the low concentration slurry outlet of the slurry adjusting system 4 and the slurry outlet of the first slurry mixer 72 to mix the slurry and the powder slurry and adjust the concentration thereof to meet the requirements. The outlet of the pulping tank 91 is communicated with the pulp inlet of the pulp storage tank 92, a first liquid level meter 911 is arranged in the pulping tank 91, a second liquid level meter 921 is arranged in the pulp storage tank 92, and the first liquid level meter 911 and the second liquid level meter 921 are connected with the control system 10 in a signal manner so as to monitor the liquid level conditions in the pulping tank 91 and the pulp storage tank 92 in real time and ensure the safe operation of the system. The seventh slurry pump 93 is provided at the slurry outlet of the slurry storage tank 92 and communicates with the shield machine to use the prepared slurry for shield grouting.

In the above-mentioned exemplary embodiment, the full underground shield slag soil recycling system realizes the recycling of shield slag soil, and is economical and environment-friendly. In addition, the system adopts a form of full underground, and synchronously moves along with the tunneling of the shield machine, so that the working efficiency is high, and no extra ground space is occupied. The control system is arranged to enable the treatment process of the shield slag soil to be monitored and controlled in real time, the automation degree is high, and the safe operation of the system can be ensured.

The working procedure of one embodiment of the fully underground shield muck recycling system of the present utility model is described below with reference to fig. 1 to 13:

the shield residue enters a cylindrical screen 103 of the slurry-converting screening system 1 from a feeding belt conveyor 101, and the redundant shield residue is conveyed to the ground by a conveying vehicle 12. The control system 10 controls the motor 102 to start, the cylindrical screen 103 works, the control system 10 controls the spraying mechanism 104 to work, shield dregs entering the cylindrical screen 103 are sprayed and washed, slurry formed by the sprayed and washed enters the first lower water tank 105, coarse particles screened out by the cylindrical screen 103 are conveyed to the conveying vehicle 12 through the third belt conveyor 107, and the coarse particles are conveyed to the ground by the conveying vehicle 12. The slurry in the first lower tank 105 is pumped by the first slurry pump 106 to the sand washing recovery system 2.

The slurry in the first lower water tank 105 is pumped to the wheel type sand washer 21 by the first slurry pump 106, is washed by the wheel type sand washer 21, falls into the dewatering screen 22, separates fine sand therein by the dewatering screen 22, and is conveyed to the fine sand conveying and temporary storage system 3 by the first belt conveyor 26. The slurry formed after cleaning enters a second lower water tank 23 and is pumped into a cyclone 25 by a second slurry pump 24, fine sand enters a first belt conveyor 26 from a sand outlet of the cyclone 25 and is then conveyed to the fine sand conveying and temporary storage system 3, and the slurry enters the slurry adjusting system 4 from a slurry outlet of the cyclone 25.

Fine sand enters from the first input screw 31, is temporarily stored in the fine sand temporary storage hopper 32, and the fine sand amount in the fine sand temporary storage hopper 32 is monitored by the level gauge 321. In the course of the mortar preparation, the fine sand is conveyed to the mortar mixing system 7 via the first output screw 33.

Slurry enters from a slurry inlet of the precipitation tank 41, precipitates and delaminates in the precipitation tank 41, the upper layer liquid enters into the adjusting tank 42 through an overflow port of the precipitation tank 41, and the lower layer liquid is pumped into the filter pressing system 5 by the third slurry pump 43. The upper liquid in the adjustment tank 42 is detected by the first concentration detector 421, and the detection result is transmitted to the control system 10, and when the first concentration detector 421 detects that the concentration in the adjustment tank 42 is higher than the set value, the control system 10 controls the water collection system 6 to add clear water into the adjustment tank 42. When the first concentration detector 421 detects that the concentration in the adjustment tank 42 is lower than the set value, a signal is sent from the control system 10, and the transportation vehicle 12 transports the water-retention thickener to be added to the adjustment tank 42. When the concentration of the supernatant in the adjustment tank 42 is within the set range, the slurry is pumped by the fourth slurry pump 44 to the slurry mixing system 7 or the slurry storage system 9.

The lower layer liquid enters a concentration tank 51 of a filter pressing system 5, concentrated and separated in the concentration tank 51, the separated clear water enters a water collecting system 6, the concentrated slurry enters a filter press 52, the filter press 52 filters the concentrated slurry into mud cakes, the mud cakes fall onto a second belt conveyor 54, and the mud cakes are conveyed to a conveying vehicle 12 by the second belt conveyor 54 and then conveyed to the ground. Clean water generated in the filter pressing process of the filter press 52 enters the water collecting system 6.

The clean water enters the water tank 61 in the water collecting system 6 and the concentration thereof is monitored by the second concentration detector 611, and when the adjusting tank 42 needs to be filled with water, the control system 10 controls the sixth slurry pump 62 to pump the water in the clean water tank 61 to the adjusting tank 42.

The fine sand is fed through the first output screw 33 to the second input screw 71 and then into the first slurry mixer 72, and the slurry is pumped into the first slurry mixer 72 by the fourth slurry pump 44, and the first slurry mixer 72 mixes the fine sand and the slurry into mortar.

The transfer cart 12 transfers the admixture such as quicklime, fly ash, bentonite, etc. to the second slurry mixer 82 through the third input screw 81, and mixes the admixture with the clear water to form slurry.

The mortar and the powder slurry enter the pulping tank 91 of the pulping and storing system 9 and are mixed in the pulping tank 91, the mixed slurry enters the storing tank 92 for temporary storage, and the liquid levels of the pulping tank 91 and the storing tank 92 are monitored in real time by the first liquid level meter 911 and the second liquid level meter 921 respectively in the process. When the shield grouting operation is required, the seventh slurry pump 93 is started to pump slurry to the shield machine.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims (10)

1. The utility model provides a full underground shield constructs dregs resource utilization system which characterized in that includes:

the slurry conversion screening system is provided with a feeding belt conveyor, and the feeding belt conveyor is arranged below a residue soil outlet of the shield machine so as to collect shield residue soil to the slurry conversion screening system, and the slurry conversion screening system is used for cleaning and separating coarse particles in the residue soil;

the sand washing recovery system is communicated with a slurry outlet of the chemical slurry screening system and is used for separating fine sand from slurry;

the fine sand conveying and temporary storage system is communicated with the sand outlet of the sand washing recovery system and is used for conveying and temporarily storing fine sand;

the slurry adjusting system is communicated with a slurry outlet of the sand washing recovery system and is used for adjusting the concentration of slurry;

the filter pressing system is communicated with the high-concentration slurry outlet of the slurry adjusting system and is used for filter pressing slurry into mud cakes;

the mortar mixing system is communicated with a sand outlet of the fine sand conveying and temporary storage system, is communicated with a low-concentration slurry outlet of the slurry adjusting system, and is used for mixing fine sand with slurry water;

the powder slurry mixing system is used for mixing the water-retaining thickener and the clear water;

the slurry inlet of the slurry preparation and storage system is respectively communicated with the slurry outlet of the slurry mixing system, the low-concentration slurry outlet of the slurry adjusting system and the slurry outlet of the powder slurry mixing system, the slurry outlet of the slurry preparation and storage system is communicated with a shield machine, and the slurry preparation and storage system is used for mixing the slurry and the powder slurry;

the control system is electrically connected with the chemical slurry screening system, the sand washing recovery system, the fine sand conveying and temporary storage system, the slurry adjusting system, the filter pressing system, the slurry mixing system, the powder slurry mixing system and the slurry preparing and storing system respectively;

the device comprises a mobile device, wherein the chemical slurry screening system, the sand washing recovery system, the fine sand conveying and temporary storage system, the slurry adjusting system, the filter pressing system, the mortar mixing system, the powder slurry mixing system and the pulping and storing system are arranged on the mobile device.

2. The fully underground shield residue soil recycling system according to claim 1, wherein the slurry dissolving and screening system further comprises a motor, a cylindrical screen, a spraying mechanism, a first lower water tank and a first slurry pump, wherein the cylindrical screen is connected with an output shaft of the motor, the spraying mechanism is arranged in the cylindrical screen, the first lower water tank is arranged below the cylindrical screen, the first slurry pump is arranged at an outlet of the lower water tank, and a slurry outlet of the slurry dissolving and screening system is communicated with the sand washing and recycling system through the first slurry pump.

3. The fully-underground shield muck recycling system according to claim 2, wherein the sand washing recovery system comprises a wheel type sand washer, a dewatering screen, a second lower water tank, a second slurry pump, a cyclone and a first belt conveyor, wherein a feed inlet of the wheel type sand washer is communicated with a slurry outlet of the slurry dissolving and screening system through the first slurry pump, the dewatering screen is arranged below a discharge outlet of the wheel type sand washer, the second lower water tank is arranged below the dewatering screen, the second slurry pump is arranged at an outlet of the second lower water tank, the cyclone is communicated with the second slurry pump, the cyclone is provided with a slurry outlet and a sand outlet, the slurry outlet of the cyclone is communicated with the slurry adjusting system, a sand inlet of the first belt conveyor is arranged below the sand outlet of the cyclone, and the sand outlet of the first belt conveyor is communicated with the fine sand conveying and temporary storage system.

4. The fully-underground shield muck recycling system according to claim 3, wherein the fine sand conveying and temporary storage system comprises a first input screw, a fine sand temporary storage hopper and a first output screw which are sequentially connected, a sand inlet of the first input screw is arranged below a sand outlet of the first belt conveyor, and a sand outlet of the first output screw is communicated with the mortar mixing system.

5. The fully underground shield muck recycling system according to claim 4, wherein the slurry adjusting system comprises a settling tank and an adjusting tank, a slurry inlet of the settling tank is communicated with a slurry outlet of the cyclone, a third slurry pump is arranged at an outlet of the settling tank, a high-concentration slurry outlet of the slurry adjusting system is communicated with the filter pressing system through the third slurry pump, the settling tank is provided with an overflow port communicated with the adjusting tank, the adjusting tank is provided with a feed port and a water inlet, a fourth slurry pump is arranged at an outlet of the adjusting tank, and a low-concentration slurry outlet of the slurry adjusting system is respectively communicated with a slurry inlet of the slurry mixing system and a slurry inlet of the slurry preparing and storing system through the fourth slurry pump.

6. The fully underground shield muck recycling system according to claim 5, wherein the filter pressing system comprises a concentration tank and a filter press, a slurry inlet of the concentration tank is communicated with a high-concentration slurry outlet of the slurry adjusting system through the third slurry pump, and a discharge outlet of the concentration tank is communicated with a feed inlet of the filter press.

7. The fully underground shield soil recycling system according to claim 6, wherein the mortar mixing system comprises a second input screw and a first mortar mixer, wherein a sand outlet of the first output screw is communicated with the first mortar mixer through the second input screw, the first mortar mixer is provided with a mortar inlet and a mortar outlet, the mortar inlet of the first mortar mixer is communicated with a low-concentration mortar outlet of the mortar adjustment system, and the mortar outlet of the first mortar mixer is communicated with a mortar inlet of the mortar storage system.

8. The fully underground shield slag soil recycling system according to any one of claims 2 to 7, wherein the slurry-melting screening system further comprises a third belt conveyor, and the third belt conveyor is arranged at a discharge port of the cylindrical screen.

9. The fully underground shield muck recycling system according to any one of claims 4-7, wherein the fine sand conveying and temporary storage system further comprises a level gauge, and the level gauge is arranged in the fine sand temporary storage hopper.

10. The fully underground shield slag soil recycling system according to any one of claims 5 to 7, wherein the slurry adjustment system further comprises a first concentration detector, and the first concentration detector is disposed in the adjustment tank.