CN220745657U - Primary treatment system for shield slag soil - Google Patents

Abstract

The utility model discloses a primary treatment system of shield slag soil, wherein a stirring assembly is arranged in a shield slag soil mixing box; the interior of the foam breaking box is divided into a foam breaking chamber and a foam breaking filter chamber; the left end of the partition board is provided with a discharge pipe in a penetrating way; the bottom end of the shield residue mixing box is connected with the middle part of the right end of the foam breaking chamber through a material conveying pipe; the inner wall of the slurry treatment box is sequentially provided with a plurality of hollow treatment agent accommodating chambers from top to bottom in a circumferential direction; the middle part of each treating agent accommodating chamber is provided with a central hole, and the bottom wall is provided with a plurality of treating through holes communicated with the inside of the treating agent accommodating chamber; the side wall of each treatment agent accommodating chamber is commonly connected with a treatment agent conveying pipe; the outer top wall of the mud treatment box is provided with a stirring assembly, and the bottom of the mud treatment box is connected with a mud discharge pipe; the bottom of the right end of the foam breaking filter chamber is connected with the upper end of the mud treatment box through a material conveying pipe. The primary treatment system for the shield slag soil provided by the utility model can rapidly and efficiently realize a foam removal process and a slurry flocculation separation process.

Description

Primary treatment system for shield slag soil

Technical Field

The utility model relates to the technical field of shield residue soil equipment, in particular to a primary treatment system of shield residue soil.

Background

In the shield tunnel tunneling construction process, a lot of waste soil and dregs are generated, and if the dregs are not transported, the dregs can be accumulated on a construction site to occupy a lot of land, so that the shield dregs must be transported in time. The existing shield residue soil treatment process generally comprises the following steps: (1) a screening system: the shield muck is separated by a muck separating device to obtain slurry and gravel particles, and the gravel particles are subjected to classification treatment and used as building base materials; (2) a primary treatment system: adding a flocculating agent into the slurry after removing foam, performing flocculation precipitation, and separating to obtain supernatant and precipitate; (3) further processing system: drying and dewatering the precipitate to obtain water and dried mud, further purifying the water and supernatant to obtain recyclable clear water, and using the dried mud as a novel environment-friendly building material or improving the dried mud into planting soil.

Therefore, in the shield residue soil treatment process, the foam removal process and the flocculation process are very important.

The shield soil contains a foaming agent and a high-molecular polymer, is difficult to dry in the sun, has high fluidity and is like a marsh. Excessive foam generated in the shield soil can influence the shield soil treatment progress, so that the shield soil treatment efficiency is reduced; excessive foam can remain on shield equipment to influence the compression resistance and the impervious strength of the equipment, so that shrinkage cracks appear on the surface of the shield segment; the foam can cause poor shield soil treatment effect, lower the viscosity of soil body, increase the fluidity, and generate landslide after accumulation; if the shield soil enters a digestion field without environmental protection treatment, a large amount of foam can be generated once the foaming agent contained in the shield soil enters the water body, and adverse effects are caused on microorganisms in the water.

The conventional foam removing device for shield soil treatment generally comprises a physical method, a chemical method and a mechanical method. The physical method mainly adopts a heating method to change the foam tension so as to remove foam, and the shield soil can generate a large amount of foam in the treatment process, so that the conventional heating method consumes higher electric energy and consumes higher energy; the chemical method mainly achieves the purpose of defoaming by adding a defoaming agent and other agents to reduce the generation of foam, but the defoaming agent has high cost, and is a chemical agent, and if the chemical agent is introduced into shield soil treatment, new pollutants are introduced; the mechanical rule is to eliminate foam by installing stirring paddles and the like, but the stirring paddles cannot completely eliminate a large amount of foam in shield soil, and the foam is accumulated more and more in the total treatment machine body in the continuous treatment process of the shield soil.

In the existing shield muck flocculation treatment method, slurry is generally sent to a slurry collecting tank, a flocculating agent in a medicament system is stirred and pumped with the slurry in the slurry collecting tank to a slurry separating tank for reaction, and the mixed slurry and supernatant are separated and precipitated. The flocculant in the existing medicament system is generally directly added into the slurry separating tank from the upper part, however, the flocculant is generally added on the surface layer of the shield residue soil, even though the flocculant is mixed with the slurry through stirring, the full mixing of the flocculant and the inner shield residue soil is difficult to realize, if the full mixing of the flocculant and the inner shield residue soil is required, the stirring time is longer, and the flocculation reaction working efficiency is lower.

Disclosure of Invention

In view of the above, the utility model provides a primary treatment system for shield slag.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a primary treatment system of shield muck comprises a shield muck mixing box, a foam breaking box and a slurry treatment box; a stirring assembly is arranged in the shield residue soil mixing box; the upper end and the lower end of the interior of the foam breaking box are divided into a foam breaking chamber and a foam breaking filter chamber by a partition plate; the foam breaking chamber and the foam breaking filter chamber are longitudinally provided with a plurality of foam breaking assemblies and pore plates at intervals from left to right; each foam breaking assembly comprises two foam breaking plates, a foam breaking channel and a spike part; a plurality of foam breaking channels are transversely and penetratingly arranged between the two foam breaking plates; a spike part is arranged in each bubble breaking channel; the left ends of all foam breaking assemblies and pore plates on the partition plate are communicated with a discharge pipe; the bottom end of the shield slag mixing box is connected with the middle part of the right end of the foam breaking chamber through a material conveying pipe; the inner wall of the slurry treatment box is sequentially provided with a plurality of hollow treatment agent accommodating chambers from top to bottom in a circumferential direction; the middle part of each treating agent accommodating chamber is provided with a central hole, and the bottom wall is provided with a plurality of treating through holes communicated with the inside of each treating agent accommodating chamber; the side wall of each treatment agent accommodating chamber is commonly connected with a treatment agent conveying pipe; a stirring assembly is arranged on the outer top wall of the slurry treatment box, and a stirring shaft of the stirring assembly stretches into the central hole; the bottom of the mud treatment box is connected with a mud discharge pipe; the bottom of the right end of the foam breaking filter chamber is connected with the upper end of the slurry treatment box through a material conveying pipe; valves are arranged on all the material conveying pipes, the discharge pipe, the treating agent conveying pipe and the mud discharging pipe, and driving pumps are arranged on all the material conveying pipes.

Preferably, hollow hot gas accommodating chambers are respectively arranged at the inner top parts of the shield residue soil mixing box and the slurry treatment box; a plurality of air through holes communicated with the inside of the bottom wall of each hot air accommodating cavity are formed in the bottom wall of each hot air accommodating cavity; a first air pipe is communicated with the top wall of each hot air accommodating cavity, and penetrates through the shield residue soil mixing box or the slurry treatment box, the top end of the first air pipe is connected with an air hose, and the air hose is connected with hot air supply equipment; the outer side wall of the first air pipe is connected with a lifting motion driving device;

the upper side of the right wall of the foam breaking chamber and the upper side of the right wall of the foam breaking filtering chamber are respectively communicated with second air pipes, and the second air pipes are connected with hot air supply equipment through connecting pipes; all the first air pipes and the second air pipes are respectively provided with a flow control valve and a driving pump.

Preferably, the lifting motion driving device is an electric hydraulic push rod; the electric hydraulic push rod is fixedly arranged on the outer side wall of the shield residue soil mixing box or the slurry treatment box; and the telescopic rod of the electric hydraulic push rod is connected with the outer side wall of the first air pipe through a linkage rod.

Preferably, a plurality of spike parts are sequentially arranged on two opposite inner walls in each bubble breaking channel at a certain interval, and spike directions of the spike parts positioned on the two opposite inner walls are opposite;

a filter screen is arranged in the discharge pipe.

Preferably, in each two foam breaking channels which are continuously arranged, a plurality of spike parts are sequentially and transversely arranged on two opposite front side walls and rear side walls in one foam breaking channel at a certain interval, and a plurality of spike parts are longitudinally and sequentially arranged on two opposite upper top walls and lower bottom walls in the other foam breaking channel at a certain interval.

Preferably, each of the treatment agent accommodation chambers has an inverted cone shape.

Preferably, a swirl plate is arranged in the middle of the outer bottom wall of each treatment agent accommodating chamber; the outer diameter of the cyclone plate is sequentially increased from top to bottom.

Preferably, the stirring assembly comprises a motor, a driving block, a stirring shaft and stirring blades; the motor is arranged in the motor cover, the motor cover is arranged on the outer top wall of the slurry treatment box or the shield residue mixing box, the motor shaft of the motor is connected with the driving block, the driving block penetrates through the slurry treatment box or the shield residue mixing box and is connected with the stirring shaft, the stirring shaft stretches into the central hole of the slurry treatment box or the position close to the bottom in the shield residue mixing box, the stirring shaft is sequentially provided with a plurality of stirring blades from top to bottom, the stirring blades are fan-shaped, the stirring blades are obliquely arranged downwards from the outer end to the inner end, and a plurality of stirring through holes are formed in the fan-shaped stirring blades; and a certain interval is reserved between the stirring blades in the slurry treatment box and the cyclone plate and between the stirring blades in the slurry treatment box and the treating agent accommodating chamber.

Preferably, a water through hole is formed in the top wall of the slurry treatment box at a position corresponding to the position between the circumferential surface of the central hole and the stirring shaft; a water tank is arranged outside one side of the slurry treatment tank; the water tank is communicated with a water pipe, a water hose is connected to the water pipe, and the outer diameter of the water hose is the same as that of the water hole; and a driving pump is arranged on the water pipe.

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

(1) Foam is separated in advance in the foam breaking box before entering the slurry treatment box, and can be removed in the foam breaking box at regular intervals, so that the foam is prevented from being concentrated in the final slurry treatment box, and the problem that more and more foam is accumulated in the slurry treatment box is avoided;

(2) Compared with the conventional foam heating and eliminating mode, the foam heating and eliminating mode has the advantages that the foam breaking speed is higher, the electric energy consumption is less, and the foam heating and eliminating mode in a large volume can consume a lot of time and a lot of electric energy;

(3) The flocculant is added into the slurry from top to bottom in a multi-layer manner, so that the slurry on the outer side surface and the inner side can be fully mixed with the flocculant, all the slurry in the slurry treatment tank can fully undergo flocculation reaction, and finally the supernatant and the flocculated slurry are fully separated; when the condition that the flocculating agent is fully mixed with all the slurry in the slurry treatment box is achieved, the time required by flocculation reaction and stirring is shortened, and the working efficiency of the flocculation reaction is greatly improved; the cyclone plate also plays a role in enabling the slurry to generate cyclone when the stirring blade rotates, so that the slurry and the flocculating agent react more fully and rapidly.

Drawings

FIG. 1 is a schematic overall perspective view of the present utility model;

FIG. 2 is a schematic overall perspective view of the present utility model;

FIG. 3 is a schematic overall perspective view of the present utility model;

FIG. 4 is an overall top view of the present utility model;

FIG. 5 is a cross-sectional view taken in the A-A direction of the present utility model;

FIG. 6 is a schematic view of the integrated valve and actuation pump of FIG. 5;

FIG. 7 is a B-B cross-sectional view of the present utility model;

FIG. 8 is a schematic view of the integrated valve and actuation pump of FIG. 7;

FIG. 9 is a C-C cross-sectional view of the present utility model;

FIG. 10 is a schematic view of the integrated valve and actuation pump of FIG. 9;

FIG. 11 is a schematic view of the internal perspective structure of the bubble breaking box of the present utility model;

FIG. 12 is a right side view of FIG. 11;

FIG. 13 is a D-D sectional view of FIG. 12;

FIG. 14 is a top view of FIG. 11;

fig. 15 is an E-E cross-sectional view of fig. 14.

In the figure: 1. a shield residue mixing box; 2. a bubble breaking box; 201. a bubble breaking chamber; 202. breaking foam filter chamber; 3. a slurry treatment tank; 4. an orifice plate; 5. a foam breaking plate; 6. a bubble breaking channel; 7. a spike; 8. a partition plate; 9. a discharge pipe; 10. a material conveying pipe; 11. a treatment agent accommodating chamber; 12. a central bore; 13. processing the through holes; 14. a treatment agent delivery tube; 15. a mud pipe; 16. a valve; 17. driving a pump; 18. a hot gas accommodating chamber; 19. an air through hole; 20. a first air tube; 21. a second air pipe; 22. an electro-hydraulic push rod; 23. a linkage rod; 24. a swirl plate; 25. a motor; 26. a driving block; 27. a stirring shaft; 28. stirring blades; 29. a water through hole; 30. a water tank; 31. a water pipe; 32. a flow control valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. 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.

Examples:

as shown in fig. 1 to 15, a primary treatment system of shield muck comprises a shield muck mixing box 1, a foam breaking box 2 and a slurry treatment box 3. The rear side of the shield slag mixing box 1 is provided with a shield slag inlet, and a stirring assembly is arranged in the shield slag mixing box 1. The upper end and the lower end of the interior of the foam breaking box are divided into a foam breaking chamber 201 and a foam breaking filter chamber 202 by a partition plate 8. A plurality of foam breaking assemblies and pore plates 4 are longitudinally arranged in the foam breaking chamber 201 and the foam breaking filtering chamber 202 at intervals from left to right.

Each foam breaking assembly comprises two foam breaking plates 5, a foam breaking channel 6 and a spike part 7; a plurality of foam breaking channels 6 are transversely and penetratingly arranged between the two foam breaking plates 5; a spike part 7 is arranged in each foam breaking channel 6; the left ends of all foam breaking assemblies and the pore plates 4 on the partition plate 8 are communicated with a discharge pipe 9, and a filter screen is arranged in the discharge pipe 9.

A plurality of spike parts 7 are sequentially arranged on the two opposite inner walls in each bubble breaking channel 6 at a certain interval, and the spike directions of the spike parts 7 positioned on the two opposite inner walls are opposite. In every two foam breaking channels 6 which are arranged continuously, a plurality of spike parts 7 are transversely arranged on the opposite front side wall and the rear side wall in one foam breaking channel 6 at a certain interval in sequence, and a plurality of spike parts 7 are longitudinally arranged on the opposite upper top wall and the lower bottom wall in the other foam breaking channel 6 at a certain interval in sequence.

The inner wall of the mud treatment box 3 is sequentially provided with a plurality of hollow treatment agent containing chambers 11 in a circumferential direction from top to bottom, and each treatment agent containing chamber 11 is in an inverted cone shape. A swirl plate 24 is provided on the middle of the outer bottom wall of each treatment agent accommodation chamber 11; the outside diameter of the swirl plate 24 increases sequentially from top to bottom. The middle part of each treating agent accommodating chamber 11 is provided with a central hole 12, and the bottom wall is provided with a plurality of treating through holes 13 communicated with the inside. The side wall of each treatment agent accommodation chamber 11 is commonly connected with a treatment agent delivery pipe 14. A stirring assembly is arranged on the outer top wall of the slurry treatment box 3, and a stirring shaft 27 of the stirring assembly extends into the central hole 12; the bottom of the mud treatment tank 3 is connected with a mud discharge pipe 15.

The stirring assembly comprises a motor 25, a driving block 26, a stirring shaft 27 and stirring blades 28; the motor 25 is arranged in a motor 25 cover, the motor 25 cover is arranged on the outer top wall of the mud treatment box 3 or the shield residue mixing box 1, a motor 25 shaft of the motor 25 is connected with a driving block 26, the driving block 26 penetrates through the mud treatment box 3 or the shield residue mixing box 1 and is connected with a stirring shaft 27, the stirring shaft 27 stretches into the central hole 12 of the mud treatment box 3 or the shield residue mixing box 1 at a position close to the bottom, a plurality of stirring blades 28 are sequentially arranged on the stirring shaft 27 from top to bottom, the stirring blades 28 are fan-shaped, the fan-shaped stirring blades 28 are obliquely downwards arranged from the outer end to the inner end, and a plurality of stirring through holes are formed in the fan-shaped stirring blades 28; and a certain interval is reserved between the stirring blades 28 in the slurry treatment box 3, the cyclone plate 24 and the treatment agent accommodating chamber 11.

The swirl plate 24 also acts to swirl the slurry during rotational movement of the stirring vanes 28, allowing for more complete and rapid reactions between the slurry and the flocculant.

A water through hole 29 is formed on the top wall of the slurry treatment tank 3 at a position corresponding to the position between the inner circumferential surface of the central hole 12 and the stirring shaft 27; a water tank 30 is arranged outside one side of the mud treatment tank 3; the water tank 30 is communicated with a water pipe 31, the water pipe 31 is connected with a water hose, and the outer diameter of the water hose is the same as the outer diameter of the water hole 29; the water pipe 31 is provided with a drive pump 17.

The bottom end of the shield residue mixing box 1 is connected with the middle part of the right end of the foam breaking chamber 201 through a material conveying pipe 10; the bottom of the right end of the foam breaking filter chamber 202 is connected with the upper end of the mud treatment box 3 through a material conveying pipe 10.

Valves 16 are provided on all of the material conveying pipes 10, the discharge pipes 9, the treating agent conveying pipes 14 and the sludge discharge pipes 15, and driving pumps 17 are provided on all of the material conveying pipes 10.

Hollow hot gas accommodating chambers 18 are respectively arranged at the inner top parts of the shield residue mixing box 1 and the slurry treatment box 3; the bottom wall of each hot gas accommodating chamber 18 is provided with a plurality of gas through holes 19 communicated with the inside of the hot gas accommodating chamber; a first air pipe 20 is communicated with the top wall of each hot air accommodating cavity 18, the first air pipe 20 penetrates through the shield residue mixing box 1 or the slurry treatment box 3, the top end of the first air pipe 20 is connected with an air hose, and the air hose is connected with hot air supply equipment. The outer side wall of the first air pipe 20 is connected with a linkage rod 23, the lower end of the linkage rod 23 is connected with a telescopic rod of an electric hydraulic push rod 22, and the electric hydraulic push rod 22 is fixedly arranged on the outer side wall of the shield residue soil mixing box 1 or the slurry treatment box 3.

The upper side of the right wall of the foam breaking chamber 201 and the upper side of the right wall of the foam breaking filtering chamber 202 are respectively communicated with a second air pipe 21, and the second air pipe 21 is connected with hot air supply equipment through a connecting pipe; all the first air pipes 20 and the second air pipes 21 are respectively provided with a flow control valve 32 and a driving pump 17.

The working principle of the utility model is as follows:

the valve 16 on the material conveying pipe 10 is closed, water is added from an inlet and slurry separated from slag and slurry is filled into the shield slag-soil mixing box 1, a motor 25 on the shield slag-soil mixing box 1 is started to work, the motor 25 drives a motor 25 shaft to rotate, and the motor 25 shaft drives a stirring blade 28 to rotate, so that the slurry and water are fully mixed;

the valve 16 on the material conveying pipe 10 is opened, the driving pump 17 starts to work, the slurry is conveyed into the foam breaking box 2, the valve 16 on the material conveying pipe 10 is closed, the driving pump 17 stops working, and the valve 16 on the discharge pipe 9 is opened; foam (i.e., air bubbles) in the slurry is firstly punctured by the spike 7 in the foam-puncturing chamber 201, and then the foam is further punctured by Kong Jieliu on the orifice plate 4; then the slurry is conveyed into a foam breaking filter chamber 202 through a discharge pipe 9, large particle impurities in the slurry are intercepted by a filter screen, residual foam in the slurry is then punctured by a spike 7 in the foam breaking filter chamber 202, and the foam is then subjected to Kong Jieliu on an orifice plate 4; thus, the foam in the slurry is largely eliminated in the foam breaking tank 2;

the valve 16 on the material conveying pipe 10 is opened, the driving pump 17 is started to work, the valve 16 on the discharge pipe 9 is closed, the valve 16 on the treating agent conveying pipe 14 is opened, the driving pump 17 is started to work, the mud is conveyed into the mud treatment box 3, the flocculating agent is conveyed into the mud treatment box 3 by the treating agent conveying pipe 14, the motor 25 on the mud treatment box 3 is started to work, the motor 25 drives the motor 25 to rotate, and the motor 25 drives the stirring blade 28 to rotate, so that the mud is fully mixed with flocculating agents distributed in multiple layers up and down; after the slurry is completely conveyed and flocculation reaction is finished, the valve 16 on the material conveying pipe 10 is closed again, the driving pump 17 stops working, the valve 16 on the treating agent conveying pipe 14 is closed again, and the driving pump 17 stops working;

the flocculating agent is added into the slurry from top to bottom in a multi-layer manner, so that the slurry on the outer side surface and the inner side can be fully mixed with the flocculating agent, all the slurry in the slurry treatment box 3 can fully undergo flocculation reaction, and finally clear water and flocculated slurry are fully separated; meanwhile, when the condition that the flocculating agent is fully mixed with all the slurry in the slurry treatment box 3 is achieved, the time required by flocculation reaction and stirring is shortened, and the working efficiency of the flocculation reaction is greatly improved;

when the mud is completely precipitated, a valve 16 on the mud discharging pipe 15 is opened, so that the mud flocculated at the lower layer is conveyed into a plate-and-frame filter press by the mud discharging pipe 15, and then solid-liquid separation is carried out; the water hose passes through the water through hole 29 (during stirring and flocculation reaction, the water hose does not pass through the water through hole 29, and the water hose is internally and spirally connected with a plugging block) and stretches into the supernatant, the driving pump 17 on the water pipe 31 is started to work, and the supernatant water is conveyed into the water tank 30; after the supernatant is completely conveyed, the driving pump 17 on the water pipe 31 stops working;

when the foam removing process in the foam breaking box 2 is finished, the valve 16 on the second air pipe 21 is opened, the driving pump 17 is started to work, hot air enters the foam breaking chamber 201 and the foam breaking filter chamber 202 respectively through the second air pipe 21, and the foam is broken when the temperature is raised, so that the foam trapped in the foam breaking box 2 is removed; the flow regulating valve on the second air pipe 21 of the foam breaking chamber 201 and the flow regulating valve on the second air pipe 21 of the foam breaking filtering chamber 202 are adjustable, and generally after the adjustment, the hot air flow in the second air pipe 21 of the foam breaking chamber 201 is larger than the hot air flow in the second air pipe 21 of the foam breaking filtering chamber 202, so as to reduce the unnecessary electric energy consumption as much as possible;

when flocculation reaction in the slurry treatment tank 3 is completed, an electric hydraulic push rod 22 outside the slurry treatment tank 3 works, and a telescopic rod drives a first air pipe 20 and a hot air accommodating cavity 18 to move downwards until the first air pipe descends to a position close to the upper surface of the supernatant, at the moment, a flow regulating valve on the first air pipe 20 is started, a pump 17 is driven to start working, hot air with flow regulated enters the hot air accommodating cavity 18 and is discharged to the upper surface of the supernatant, and a small amount of residual foam on the surface of the supernatant breaks when the temperature rises, so that the foam finally remained in the slurry treatment tank 3 is removed; the close-range heating mode does not need to heat the whole slurry treatment tank 3 so as to reduce unnecessary electric energy consumption to the greatest extent possible; therefore, compared with the conventional foam heating and removing mode, the foam heating and removing mode has the advantages that the foam breaking speed is higher, the electric energy consumption is less, and the time and the electric energy for heating and removing the foam in a large volume can be much longer;

foam is separated in advance in the foam breaking box 2 before entering the mud treatment box 3, and the foam can be removed in the foam breaking box 2 at regular intervals, so that the foam is prevented from being concentrated in the final mud treatment box 3, and the problem that more and more foam is accumulated in the mud treatment box 3 is avoided.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims (9)

1. The primary treatment system of the shield muck comprises a shield muck mixing box (1), a foam breaking box (2) and a slurry treatment box (3); a stirring assembly is arranged in the shield residue mixing box (1); the foam breaking box is characterized in that the upper end and the lower end in the foam breaking box (2) are divided into a foam breaking chamber (201) and a foam breaking filter chamber (202) by a partition plate (8); a plurality of foam breaking assemblies and pore plates (4) are longitudinally arranged in the foam breaking chamber (201) and the foam breaking filter chamber (202) at intervals from left to right; each foam breaking assembly comprises two foam breaking plates (5), a foam breaking channel (6) and a spike part (7); a plurality of foam breaking channels (6) are transversely and penetratingly arranged between the two foam breaking plates (5); a spike (7) is arranged in each foam breaking channel (6); the left ends of all foam breaking assemblies and the pore plates (4) on the partition plate (8) are communicated with a discharge pipe (9); the bottom end of the shield residue mixing box (1) is connected with the middle part of the right end of the foam breaking chamber (201) through a material conveying pipe (10); the inner wall of the slurry treatment box (3) is sequentially provided with a plurality of hollow treatment agent accommodating chambers (11) in a circumferential direction from top to bottom; the middle part of each treating agent accommodating chamber (11) is provided with a central hole (12), and the bottom wall is provided with a plurality of treating through holes (13) communicated with the inside; the side wall of each treatment agent accommodating chamber (11) is commonly connected with a treatment agent conveying pipe (14); a stirring assembly is arranged on the outer top wall of the slurry treatment box (3), and a stirring shaft (27) of the stirring assembly stretches into the central hole (12); the bottom of the mud treatment box (3) is connected with a mud discharge pipe (15); the bottom of the right end of the foam breaking filter chamber (202) is connected with the upper end of the slurry treatment box (3) through a material conveying pipe (10); all the material conveying pipes (10), the discharge pipes (9), the treating agent conveying pipes (14) and the mud discharging pipes (15) are provided with valves (16), and all the material conveying pipes (10) are provided with driving pumps (17).

2. The primary treatment system of shield residue soil according to claim 1, wherein hollow hot gas accommodating chambers (18) are respectively arranged at the inner top parts of the shield residue soil mixing box (1) and the slurry treatment box (3); the bottom wall of each hot gas accommodating cavity (18) is provided with a plurality of gas through holes (19) communicated with the inside of the hot gas accommodating cavity; a first air pipe (20) is communicated with the top wall of each hot air accommodating cavity (18), the first air pipe (20) penetrates through the shield residue mixing box (1) or the slurry treatment box (3), the top end of the first air pipe (20) is connected with an air hose, and the air hose is connected with hot air supply equipment; the outer side wall of the first air pipe (20) is connected with a lifting motion driving device;

the upper side of the right wall of the foam breaking chamber (201) and the upper side of the right wall of the foam breaking filter chamber (202) are respectively communicated with second air pipes (21), and the second air pipes (21) are connected with hot gas supply equipment through connecting pipes; all the first air pipes (20) and the second air pipes (21) are respectively provided with a flow control valve (32) and a driving pump (17).

3. The primary treatment system of shield residue soil according to claim 2, wherein the lifting motion driving means is an electro-hydraulic pushrod (22); the electric hydraulic push rod (22) is fixedly arranged on the outer side wall of the shield residue soil mixing box (1) or the slurry treatment box (3); the telescopic rod of the electric hydraulic push rod (22) is connected with the outer side wall of the first air pipe (20) through a linkage rod (23).

4. The primary treatment system of shield residue soil according to claim 1, wherein a plurality of spike parts (7) are sequentially arranged on two opposite inner walls in each foam breaking channel (6) at a certain interval, and spike directions of the spike parts (7) positioned on the two opposite inner walls are opposite;

a filter screen is arranged in the discharge pipe (9).

5. The primary treatment system for shield residue soil according to claim 4, wherein a plurality of spike parts (7) are sequentially and transversely arranged on two opposite front side walls and rear side walls in one foam breaking channel (6) at a certain interval, and a plurality of spike parts (7) are sequentially and longitudinally arranged on two opposite upper top walls and lower bottom walls in the other foam breaking channel (6) at a certain interval.

6. The primary treatment system of shield residue soil according to claim 1, wherein each of the treatment agent accommodation chambers (11) has an inverted cone shape.

7. The primary treatment system of shield residue soil according to claim 1, wherein a swirl plate (24) is provided on the middle of the outer bottom wall of each treatment agent accommodation chamber (11); the outer diameter of the cyclone plate (24) is sequentially increased from top to bottom.

8. The primary treatment system of shield residue soil according to claim 1, wherein the stirring assembly comprises a motor (25), a driving block (26), a stirring shaft (27) and stirring blades (28); the motor (25) is arranged in a motor (25) cover, the motor (25) is arranged on the outer top wall of the slurry treatment box (3) or the shield residue mixing box (1) in a covering mode, a motor (25) shaft of the motor (25) is connected with a driving block (26), the driving block (26) penetrates through the slurry treatment box (3) or the shield residue mixing box (1) to be connected with a stirring shaft (27), the stirring shaft (27) stretches into a position close to the bottom in a central hole (12) of the slurry treatment box (3) or in the shield residue mixing box (1), a plurality of stirring blades (28) are sequentially arranged on the stirring shaft (27) from top to bottom, the stirring blades (28) are fan-shaped, the outer ends of the stirring blades are obliquely downwards arranged towards the inner ends, and a plurality of stirring through holes are formed in the fan-shaped stirring blades (28); a certain interval is reserved between the stirring blades (28) in the slurry treatment box (3), the cyclone plate (24) and the treatment agent accommodating chamber (11).

9. The primary treatment system of shield residue soil according to claim 1, wherein a water through hole (29) is formed at a position between the top wall of the slurry treatment tank (3) corresponding to the inner circumferential surface of the center hole (12) and the stirring shaft (27); a water tank (30) is arranged outside one side of the slurry treatment box (3); a water pipe (31) is communicated with the water tank (30), a water hose is connected to the water pipe (31), and the outer diameter of the water hose is the same as that of the water hole (29); the water pipe (31) is provided with a driving pump (17).