CN113898367A - Spiral unearthing device with freezing device - Google Patents
Spiral unearthing device with freezing device Download PDFInfo
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- CN113898367A CN113898367A CN202111059370.9A CN202111059370A CN113898367A CN 113898367 A CN113898367 A CN 113898367A CN 202111059370 A CN202111059370 A CN 202111059370A CN 113898367 A CN113898367 A CN 113898367A
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- 230000008014 freezing Effects 0.000 title claims abstract description 89
- 238000007710 freezing Methods 0.000 title claims abstract description 89
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 171
- 239000002689 soil Substances 0.000 claims abstract description 137
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 85
- 239000007788 liquid Substances 0.000 claims abstract description 77
- 239000012267 brine Substances 0.000 claims abstract description 9
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims description 50
- 238000007599 discharging Methods 0.000 claims description 41
- 239000000843 powder Substances 0.000 claims description 30
- 239000002131 composite material Substances 0.000 claims description 17
- 239000000049 pigment Substances 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 10
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000008439 repair process Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000008859 change Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000009172 bursting Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000001054 red pigment Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/16—Auto-repairing or self-sealing arrangements or agents
- B29C73/22—Auto-repairing or self-sealing arrangements or agents the article containing elements including a sealing composition, e.g. powder being liberated when the article is damaged
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/222—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a spiral unearthing device with a freezing device, which belongs to the technical field of spiral unearthing devices and comprises a freezing device, wherein an excavated loose soil body is conveyed through a first shaft type spiral section, the soil is conveyed into a freezing pipeline through the first shaft type spiral section after a first valve is opened, an inner pipe body is cooled through a liquid nitrogen pipeline, the soil in the freezing pipeline is changed into frozen soil, and a temperature measurer is matched with a temperature measurer display to avoid damage to a pipeline connecting part caused by over-low temperature and over-high frozen soil volume expansion pressure; meanwhile, the problem that the restoration is not safe and convenient enough due to the outflow of a water-soil mixture is greatly avoided, the restoration period is greatly shortened, the restoration efficiency is high, and meanwhile, the problem that the field is disordered due to the gushing of fluid soil during the discharge is greatly avoided; after freezing, the frozen soil is discharged to the soil discharge port by the second shaft type spiral section, and then is heated and unfrozen by the hot brine circulation box, so that the complete discharge of the soil is facilitated, and the normal circulation of the equipment is ensured.
Description
Technical Field
The invention relates to the technical field of spiral soil discharging devices, in particular to a spiral soil discharging device with a freezing device.
Background
An earth pressure balance shield machine is a tunnel boring machine using a shield method. The basic principle of the earth pressure balance shield is that a tangible steel assembly is used for excavating earth along the design axis of the tunnel and then advancing the earth. The earth pressure balance shield belongs to a closed shield. The shield can bear the pressure from the stratum and prevent the invasion of underground water or quicksand.
At the present stage, the earth pressure balance shield machine is widely applied to underground tunnel engineering in China, the spiral earth discharger is an important component of the earth pressure balance shield machine, and the shield machine generates gushing to different degrees when passing through water-rich sandy soil layers, water-rich fracture zones, filling pressure-bearing water-soluble soil groves, river sections and other water-rich complex geological sections. Gushing and can produce great potential safety hazard, influence the engineering progress, so close sealing valve when spiral unearthing ware dregs gush and handle, but inside can be because of the stone of unearthing is great and block at partial stratum spiral unearthing ware, need take out the stone, can not solve this type of problem when closing the valve, valve department also is because of gushing big in addition, sometimes there is the rubble and close the difficulty, the seepage occasionally, not only the security is not good this moment, and it is inconvenient to restore, long and inefficient to restore the period of time. Therefore, we propose a spiral soil discharging device with a freezing device to solve the above problems.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a spiral soil discharging device with a freezing device. The leaked part of the spiral soil discharging device can be repaired, so that the problem that the existing water-soil mixture flows out to cause insufficient safety and inconvenience in repair is greatly avoided, the repair period is greatly shortened, the efficiency is high, and meanwhile, the phenomenon that the fluid soil generates gushing in discharge to cause field disorder and influence on the normal operation of equipment is greatly avoided; after freezing, open the second valve, the second shaft type spiral section is arranged frozen soil to the hole of dumping this moment, then restores and carries out appropriate heating unfreezing to frozen soil through hot salt water circulation case after finishing, very big has made things convenient for the discharge of soil layer, and the complete is discharged soil outside the machine to guarantee that spiral unearthing ware normal cycle goes on.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A spiral soil discharging device with a freezing device comprises a spiral soil discharging device body and a control terminal, wherein the spiral soil discharging device body comprises a first shaft type spiral section, a second shaft type spiral section and a freezing pipeline, the freezing pipeline is fixedly connected between the first shaft type spiral section and the second shaft type spiral section, one end, far away from the freezing pipeline, of the second shaft type spiral section is connected with a soil discharging port, the freezing pipeline comprises an outer pipe body and an inner pipe body, a first cavity is formed between the outer pipe body and the inner pipe body, a liquid nitrogen pipeline is arranged in the first cavity, the liquid nitrogen pipeline is spirally wound on the outer wall of the inner pipe body, the outer wall of the outer pipe body is respectively provided with a liquid nitrogen inlet and a liquid nitrogen outlet, the liquid nitrogen inlet and the liquid nitrogen outlet are respectively communicated with an inlet and an outlet of the liquid nitrogen pipeline, the outer wall of the inner pipe body is further provided with a temperature detector, and the outer wall of the outer pipe body is fixedly connected with a temperature detector display, both sides of the freezing pipeline are fixedly connected with valves;
furthermore, the inner part of the inner pipe body is also connected with a force variable layer, the outer wall of the force variable layer is fixedly connected with a plurality of springs, and the other ends of the springs are fixedly connected with the inner wall of the inner pipe body. The inside of interior body has been seted up a plurality of and has been stored the chamber, store the directional deformation ball of the inside fixedly connected with a plurality of evenly distributed of chamber, when freezing the in-process of soil in the pipeline, certain inflation can take place, the frozen soil of inflation this moment can extrude the power change layer, the toughness on power change layer is high, can extrude the compression to the spring simultaneously through the deformation on power change layer, can cushion frozen expansive force on the one hand, on the other hand can leave bigger flexible space for the inflation of frozen soil. Furthermore, a first elastic membrane and a second elastic membrane are fixedly connected to two sides of the directional deformation ball respectively, composite powder and repair glue are filled in the first elastic membrane and the second elastic membrane respectively, hard layers are arranged at the other two ends of the directional deformation ball, a second cavity is formed in the middle parts of the first elastic membrane, the second elastic membrane and the hard layers, gas is filled in the second cavity, and brittle blocks are fixedly connected to the outer walls of the first elastic membrane and the second elastic membrane; the directional deformation ball receives and leads to the compression nitrogen gas in the second cavity to receive the extrusion after the extrusion, thereby can make first elastic membrane and second elastic membrane expand towards both sides, first elastic membrane and second elastic membrane between two adjacent directional deformation balls touch each other and extrude when certain dynamics, first elastic membrane and the fragile piece of second elastic membrane can be crushed, compound powder in the first elastic membrane can spill over this moment and mix with the restoration glue that the second elastic membrane spilled over in the adjacent directional deformation ball, cement powder in restoration glue and the compound powder this moment, carbon powder and colored pigment mix, can be polymerized solidification fast by the catalysis and adhere, not only can make the storage intracavity portion firmer.
Further, the composite powder is prepared by mixing cement powder, carbon powder and colored pigment, and the mass ratio of the cement powder to the carbon powder to the colored pigment is 5: 3: 2, the color of the colored pigment is red, and the colored pigment can have ideal strength when being mixed with the repairing glue by a certain proportion of the cement powder, the carbon powder and the colored pigment.
Furthermore, the gas in the second cavity is compressed nitrogen, the nitrogen is not dangerous when overflowing, and the compressed nitrogen can improve the expansion effect of the first elastic membrane and the second elastic membrane.
Furthermore, an auxiliary telescopic rod is fixedly connected between the force variable layer and the inner pipe body, the spring is sleeved outside the auxiliary telescopic rod, the auxiliary telescopic rod can contract along with the extrusion of the force variable layer, and the connecting strength of the force variable layer and the inner wall of the inner pipe body can be improved.
Further, a plurality of holes have still been seted up to the outer wall of outer body, difference fixedly connected with connecting pipe and observation tube in the hole, connecting pipe one end communicates in the liquid nitrogen pipeline, the other end of connecting pipe and observation tube is the encapsulated situation when not, and the accessible lets in the pipe intercommunication with connecting pipe and outside liquid nitrogen during the use, and then the liquid nitrogen volume in the adjustable liquid nitrogen pipeline to control freezes the effect of freezing on the inside different degrees of pipeline, and application scope is wide.
Furthermore, the input motor of the second shaft type spiral section is also connected with a power display, the output end of the power display is connected with the input end of the control terminal, the output end of the control terminal is connected with a liquid nitrogen input module, and the liquid nitrogen input module can adjust the input amount of liquid nitrogen. When frozen soil is broken and discharged out of frozen soil in the freezing pipeline through the second shaft type spiral section after the frozen soil is finished, the power of an input motor of the second shaft type spiral section can be known through the power display, when the power is large, the frozen soil is hard, large power is needed for breaking and discharging the frozen soil, at the moment, the power display transmits a signal to the control terminal, the control terminal feeds back the signal to the liquid nitrogen input module, the liquid nitrogen input module reduces the input quantity of liquid nitrogen, and after the power of the input motor of the second shaft type spiral section is reduced, the power display displays normal, and vice versa, the normal operation and use effect of the spiral soil discharging device can be improved.
Furthermore, the outer wall of the outer pipe body is wrapped by a heat insulation layer, so that the freezing effect inside the freezing pipeline can be guaranteed and the freezing efficiency can be improved.
Further, the position of the soil discharge port is provided with a hot brine circulation box, the soil discharged from the second shaft type spiral section can be discharged after passing through the hot brine circulation box, the frozen soil can be heated and thawed properly through the hot brine circulation box, the soil layer is greatly discharged conveniently, the soil is completely discharged out of the machine, and the normal circulation of the spiral soil discharging device body is guaranteed.
Furthermore, the one end that first shaft type spiral section and second shaft type spiral section are close to each other all passes through bolted connection with the both ends of freezing the pipeline, and bolted connection can conveniently freeze the pipeline and install and dismantle between first shaft type spiral section and the second shaft type spiral section, makes things convenient for subsequent maintenance to change to need not change whole spiral soil discharging device, save work load and cost.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, the excavated loose soil body is conveyed through the first shaft type spiral section, the first valve of the freezing pipeline close to the first shaft type spiral section is opened, the soil-water mixture is conveyed into the freezing pipeline through the first shaft type spiral section, liquid nitrogen is discharged into the liquid nitrogen pipeline through the liquid nitrogen inlet, the inner pipe body is cooled through the liquid nitrogen pipeline, finally, soil inside the freezing pipeline is frozen to become frozen soil, and the spiral structure of the liquid nitrogen pipeline can improve the refrigerating efficiency; through the cooperation of thermoscope and thermoscope display, avoid the temperature to hang down excessively, frozen soil volume expansion leads to pressure too big and arouse the risk of exploding and splitting. The leaked part of the spiral soil discharging device can be repaired, so that the problem that the existing water-soil mixture flows out to cause insufficient safety and inconvenience in repair is greatly avoided, the repair period is greatly shortened, and the efficiency is high; meanwhile, the phenomenon that the normal operation of equipment is affected due to field disorder caused by gushing of fluid soil during discharge is avoided.
(2) After freezing in this scheme, open and freeze the second valve that the pipeline is close to second shaft formula spiral section, discharge the dumping mouth through second shaft formula spiral section with frozen soil this moment, then carry out appropriate heating unfreezing to frozen soil through hot salt water circulation case after the restoration finishes, very big has made things convenient for the discharge on soil layer, and complete discharges soil outside the machine to guarantee that the spiral goes out the normal cycle of native ware and go on.
(3) When freezing the in-process of the soil in the pipeline in this scheme, certain inflation can take place, the frozen soil of inflation this moment can extrude the power change layer, the toughness on power change layer is high, can extrude the compression to the spring simultaneously through the deformation on power change layer, can cushion frozen expansive force on the one hand, on the other hand can leave bigger flexible space for the inflation of frozen soil, can improve the inflation volume of frozen soil, and then have fine protection effect to freezing the pipeline.
(4) When the expansion pressure of frozen soil in the freezing pipeline is too high, the frozen soil extrusion force becomes layers and springs, and then the inner pipe body is continuously extruded, directional deformation balls in the storage cavity are extruded, so that compressed nitrogen in the second cavity is extruded, the first elastic membrane and the second elastic membrane can expand towards two sides, when the first elastic membrane and the second elastic membrane between two adjacent directional deformation balls touch and extrude each other to a certain force, the brittle blocks of the first elastic membrane and the second elastic membrane can be crushed, the composite powder in the first elastic membrane can overflow and the repair glue overflowing from the adjacent second elastic membrane can be mixed, the composite powder can be polymerized, cured and adhered rapidly by catalysis, the inner part of the storage cavity can be firmer, the strength in the inner pipe body can be improved, and when cracks appear in the inner pipe body, the cracks can be repaired, adhered and reinforced, therefore, the freezing pipeline can be further prevented from bursting due to the expansion force of the frozen soil, and the freezing pipeline is safer.
(5) When the outer wall of the inner pipe body is broken, the composite powder in the oriented deformation ball can overflow from the cavity between the pipe body and the inner pipe body and finally overflow into the observation pipe, and the red pigment of the composite powder can know that the inner pipe body is broken, so that the subsequent overhaul is facilitated.
(6) When frozen soil is broken and discharged out of frozen soil in the freezing pipeline through the second shaft type spiral section after the frozen soil is finished, the power of an input motor of the second shaft type spiral section can be known through the power display, when the power is large, the frozen soil is hard, large power is needed for breaking and discharging the frozen soil, at the moment, the power display transmits a signal to the control terminal, the control terminal feeds back the signal to the liquid nitrogen input module, the liquid nitrogen input module reduces the input quantity of liquid nitrogen, and after the power of the input motor of the second shaft type spiral section is reduced, the power display displays normal, and vice versa, the normal operation and use effect of the spiral soil discharging device can be improved.
(7) The connecting pipe accessible lets in the pipe intercommunication with connecting pipe and outside liquid nitrogen when using, and then the liquid nitrogen volume in the adjustable liquid nitrogen pipeline to the control freezes the effect of freezing on the inside different degree of pipeline, and application scope is wide.
Drawings
FIG. 1 is a schematic view of the spiral unearthing device of the present invention;
FIG. 2 is a schematic view of the freezing conduit of the present invention in partial cross-section;
FIG. 3 is a cross-sectional structural schematic view of a freezing conduit of the present invention;
FIG. 4 is a schematic diagram of the internal structure of the directionally deformable sphere of the present invention;
FIG. 5 is a schematic structural view of the deformed state of the directionally deformed ball in the storage chamber according to the present invention;
FIG. 6 is a schematic view of a flow structure of a liquid nitrogen input module according to the present invention.
The reference numbers in the figures illustrate:
1. a first axial helical section; 2. freezing the pipeline; 3. a thermometer display; 4. a second axial helical section; 5. a soil discharge port; 6. a liquid nitrogen inlet; 7. a liquid nitrogen outlet; 8. a liquid nitrogen pipeline; 9. an outer tubular body; 10. an inner tube body; 11. a first cavity; 12. a force variable layer; 13. a spring; 14. an auxiliary telescopic rod; 15. a storage chamber; 16. a notch; 17. a connecting pipe; 18. directionally deforming the ball; 19. a first elastic film; 20. a second elastic film; 21. a second cavity; 22. and (4) observing the tube.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection can be direct connection or indirect connection through an intermediate medium, and can be communication inside the model adapting element. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1 and 2, a spiral soil discharging device with a freezing device comprises a spiral soil discharging device body and a control terminal, wherein the spiral soil discharging device body comprises a first axial spiral section 1, a second axial spiral section 4 and a freezing pipeline 2, the freezing pipeline 2 is fixedly connected between the first axial spiral section 1 and the second axial spiral section 4, one end of the first axial spiral section 1, which is close to the second axial spiral section 4, is connected with two ends of the freezing pipeline 2 through bolts, the bolts are connected to facilitate the installation and disassembly of the freezing pipeline 2 and the first axial spiral section 1, and the second axial spiral section 4, so that the subsequent maintenance and replacement are facilitated, the whole spiral soil discharging device is not required to be replaced, the workload and the cost are saved, one end of the second axial spiral section 4, which is far away from the freezing pipeline 2, is connected with a soil discharging port 5, the freezing pipeline 2 comprises an outer pipe body 9 and an inner pipe body 10, the outer wall of outer body 9 has still wrapped up the heat preservation, can guarantee through the heat preservation that freeze the inside effect of freezing of pipeline 2 and improve the efficiency of freezing, form first cavity 11 between outer body 9 and the interior body 10, first cavity 11 is inside to be equipped with liquid nitrogen pipeline 8, liquid nitrogen pipeline 8 spirals and twines in the outer wall of interior body 10, liquid nitrogen import 6 and liquid nitrogen export 7 have been seted up respectively to outer body 9 outer wall, liquid nitrogen import 6 and liquid nitrogen export 7 communicate respectively in the exit of liquid nitrogen pipeline 8, the thermodetector is still installed to interior body 10 outer wall, the outer wall fixedly connected with thermodetector display 3 of outer body 9, the equal fixedly connected with valve in both sides of freezing pipeline 2. The outer wall of the outer pipe body 9 is further provided with a plurality of holes, a connecting pipe 17 is fixedly connected in each hole, one end of each connecting pipe 17 is communicated with the liquid nitrogen pipeline 8, the other end of each connecting pipe 17 is in a closed state when not in use, the connecting pipe 17 can be communicated with an external liquid nitrogen inlet pipe when in use, the amount of liquid nitrogen in the liquid nitrogen pipeline 8 can be adjusted, accordingly, the freezing effect of the interior of the freezing pipeline 2 in different degrees is controlled, and the application range is wide;
the soil layer is mined through the first shaft type spiral section 1, a first valve of the freezing pipeline 2 close to the first shaft type spiral section 1 is opened, the first shaft type spiral section 1 can transmit a soil-water mixture to the freezing pipeline 2, meanwhile, liquid nitrogen is discharged into the liquid nitrogen pipeline 8 through the liquid nitrogen inlet 6, the inner pipe body 10 is cooled through the liquid nitrogen pipeline 8, finally, soil inside the inner pipe body 10 of the freezing pipeline 2 is frozen and becomes frozen soil, the liquid nitrogen is discharged from the liquid nitrogen outlet 7 to be circularly cooled, and through the matching of the temperature detector and the temperature detector display 3, the temperature inside the freezing pipeline 2 can be known, the problem that the temperature is too low, and the frozen soil expands in volume to cause too large pressure and cause burst risk is avoided. The leaked part of the spiral soil discharging device can be repaired, so that the problem that the existing water-soil mixture flows out to cause insufficient safety and inconvenience in repair is greatly avoided, the repair period is greatly shortened, and the efficiency is high; meanwhile, the phenomenon that the normal operation of equipment is affected due to field disorder caused by gushing of fluid soil during discharge is greatly avoided. The position of the soil discharging port 5 is also provided with a hot brine circulation box, the soil discharged from the second shaft type spiral section 4 can be discharged after passing through the hot brine circulation box, after freezing, the valve of the freezing pipeline 2 close to the second shaft type spiral section 4 is opened, the frozen soil is discharged to the soil discharging port 5 through the second shaft type spiral section 4, the frozen soil can be heated and thawed properly through the hot brine circulation box, the discharge of a soil layer is greatly facilitated, the soil is completely discharged out of the machine, and the normal circulation of the spiral soil discharging device body is ensured.
Referring to fig. 3, the inner tube 10 is further connected to a force variable layer 12, the outer wall of the force variable layer 12 is fixedly connected to a plurality of springs 13, and the other ends of the springs 13 are fixedly connected to the inner wall of the inner tube 10. An auxiliary telescopic rod 14 is fixedly connected between the force changing layer 12 and the inner tube 10, and a spring 13 is sleeved outside the auxiliary telescopic rod 14; when freezing the in-process of the soil in the pipeline 2, certain inflation can take place, the frozen soil of inflation this moment can extrude power variable layer 12, the toughness on power variable layer 12 is high, can extrude the compression to spring 13 simultaneously through the deformation on power variable layer 12, can cushion frozen expansive force on the one hand, on the other hand can leave bigger flexible space for the inflation of frozen soil, can improve the inflation volume of frozen soil, and then have fine protection effect to freezing pipeline 2. The auxiliary telescopic rod 14 will contract along with the extrusion of the force variable layer 12, which can improve the connection strength between the force variable layer 12 and the inner wall of the inner tube 10.
Referring to fig. 4 and 5, a plurality of storage cavities 15 are formed in the inner tube 10, a plurality of uniformly distributed directional deformation balls 18 are fixedly connected to the interior of the storage cavities 15, a first elastic membrane 19 and a second elastic membrane 20 are fixedly connected to two sides of each directional deformation ball 18, composite powder and repair glue are filled in the first elastic membrane 19 and the second elastic membrane 20, the other two ends of each directional deformation ball 18 are hard layers, a second cavity 21 is formed in the middle of each first elastic membrane 19, the middle of each second elastic membrane 20 and the middle of each hard layer, gas is filled in the second cavity 21, fragile blocks are fixedly connected to the outer walls of the first elastic membrane 19 and the second elastic membrane 20, the composite powder is formed by mixing cement powder, carbon powder and colored pigment, and the mass ratio of the cement powder, the carbon powder and the colored pigment is 5: 3: 2, the color of the colored pigment is red, and the gas in the second cavity 21 is compressed nitrogen; when the expansion pressure of the frozen soil in the freezing pipeline 2 is too high, the frozen soil firstly exerts an acting force on the force variable layer 12, then the force variable layer 12 continuously further extrudes the inner pipe body 10 through the spring 13, and further extrudes the directional deformation balls 18 in the storage cavity 15, the directional deformation balls 18 are extruded to cause the compressed nitrogen in the second cavity 21 to be extruded, so that the first elastic film 19 and the second elastic film 20 expand towards two sides, when the first elastic film 19 and the second elastic film 20 between two adjacent directional deformation balls 18 touch and extrude each other to a certain force, the brittle blocks of the first elastic film 19 and the second elastic film 20 are crushed, at the moment, the composite powder in the first elastic film 19 overflows and the repair glue overflowing from the second elastic film 20 in the adjacent directional deformation balls 18 are mixed, and at the moment, the repair glue and the cement powder in the composite powder are mixed, The carbon powder and the colored pigment are mixed and can be rapidly polymerized, cured and adhered by catalysis, so that the inside of the storage cavity 15 is firmer, the strength inside the inner pipe body 10 is improved, and when cracks appear in the inner pipe body 10, the cracks can be repaired, adhered and reinforced, so that the freezing pipeline 2 can be further prevented from bursting due to the expansion force of frozen soil, and the freezing pipeline 2 is safer. When the outer wall of the inner pipe body 10 is broken, the composite powder in the directionally deformed ball 18 overflows into the cavity between the pipe body 9 and the inner pipe body 10, and finally overflows into the observation pipe 22, and the broken phenomenon of the inner pipe body 10 can be known through the red pigment of the composite powder, so that the subsequent maintenance is facilitated.
Referring to fig. 6, the input motor of the second axial spiral section 4 is further connected to a power display, an output end of the power display is connected to an input end of the control terminal, an output end of the control terminal is connected to a liquid nitrogen input module, and the liquid nitrogen input module can adjust the input amount of liquid nitrogen; when frozen soil is broken and discharged out of frozen soil in the freezing pipeline 2 through the second shaft type spiral section 4 after the frozen soil is finished, the power of an input motor of the second shaft type spiral section 4 can be known through the power display, when the power is larger, the frozen soil is hard, larger power is needed for breaking and discharging the frozen soil, at the moment, the power display transmits a signal to the control terminal, the control terminal feeds back the signal to the liquid nitrogen input module, the liquid nitrogen input module reduces the input quantity of the liquid nitrogen, and after the power of the input motor of the second shaft type spiral section 4 is reduced, the power display displays normal state, and vice versa, and the normal operation and use effect of the spiral soil discharging device can be improved.
The working principle is as follows: when the device is used, firstly, a soil layer is mined through the first shaft type spiral section 1, the first valve of the freezing pipeline 2 close to the first shaft type spiral section 1 is opened, at the moment, the first shaft type spiral section 1 can transfer a soil-water mixture into the freezing pipeline 2, liquid nitrogen is discharged into the liquid nitrogen pipeline 8 through the liquid nitrogen inlet 6, the inner pipe body 10 is cooled through the liquid nitrogen pipeline 8, finally, soil inside the inner pipe body 10 of the freezing pipeline 2 is frozen to become frozen soil, the liquid nitrogen is discharged from the liquid nitrogen outlet 7 to be circularly cooled, and meanwhile, the spiral structure of the liquid nitrogen pipeline 8 can improve the refrigerating efficiency. Through the cooperation of thermodetector and thermodetector display 3, can know the inside temperature size of freezing pipeline 2, avoid the temperature to hang down excessively, frozen soil volume expansion leads to pressure too big and arouse the risk of exploding and splitting. The leaked part of the spiral soil discharging device can be repaired, so that the problem that the existing water-soil mixture flows out to cause insufficient safety and inconvenience in repair is greatly avoided, the repair period is greatly shortened, and the efficiency is high; meanwhile, the phenomenon that the normal operation of equipment is affected due to field disorder caused by gushing generated when the fluid soil is discharged is greatly avoided.
After freezing, open the valve that freezes pipeline 2 and be close to second shaft formula spiral section 4 again, discharge frozen soil to dumping mouth 5 through second shaft formula spiral section 4 this moment, then carry out appropriate heating unfreezing to frozen soil through hot salt water circulation case after the restoration finishes, very big has made things convenient for the discharge of soil layer, and complete discharges soil outside the machine to guarantee the normal cycle of spiral soil discharging ware and go on.
When freezing the in-process of the soil in the pipeline 2, certain inflation can take place, the frozen soil of inflation this moment can extrude power variable layer 12, the toughness on power variable layer 12 is high, can extrude the compression to spring 13 simultaneously through the deformation on power variable layer 12, can cushion frozen expansive force on the one hand, on the other hand can leave bigger flexible space for the inflation of frozen soil, can improve the inflation volume of frozen soil, and then have fine protection effect to freezing pipeline 2.
When the expansion pressure of the frozen soil in the freezing pipeline 2 is too high, the frozen soil firstly exerts an acting force on the force variable layer 12, then the force variable layer 12 continuously further extrudes the inner pipe body 10 through the spring 13, and further extrudes the directional deformation balls 18 in the storage cavity 15, and after the directional deformation balls 18 are extruded, the compressed nitrogen in the second cavity 21 is extruded, so that the first elastic membrane 19 and the second elastic membrane 20 expand towards two sides, as shown in fig. 5, when the first elastic membrane 19 and the second elastic membrane 20 between two adjacent directional deformation balls 18 touch and extrude to a certain force, the brittle blocks of the first elastic membrane 19 and the second elastic membrane 20 are crushed, at the moment, the composite powder in the first elastic membrane 19 overflows and the repair glue overflowing from the second elastic membrane 20 in the adjacent directional deformation balls 18 are mixed, at the moment, the repair glue and the cement powder in the composite powder, The carbon powder and the colored pigment are mixed and can be rapidly polymerized, cured and adhered by catalysis, so that the inside of the storage cavity 15 is firmer, the strength inside the inner pipe body 10 is improved, and when cracks appear in the inner pipe body 10, the cracks can be repaired, adhered and reinforced, so that the freezing pipeline 2 can be further prevented from bursting due to the expansion force of frozen soil, and the freezing pipeline 2 is safer. When the outer wall of the inner pipe body 10 is broken, the composite powder in the directionally deformed ball 18 overflows into the cavity between the pipe body 9 and the inner pipe body 10, and finally overflows into the observation pipe 22, and the broken phenomenon of the inner pipe body 10 can be known through the red pigment of the composite powder, so that the subsequent maintenance is facilitated.
When frozen soil is broken and discharged out of frozen soil in the freezing pipeline 2 through the second shaft type spiral section 4 after the frozen soil is finished, the power of an input motor of the second shaft type spiral section 4 can be known through the power display, when the power is larger, the frozen soil is hard, larger power is needed for breaking and discharging the frozen soil, at the moment, the power display transmits a signal to the control terminal, the control terminal feeds back the signal to the liquid nitrogen input module, the liquid nitrogen input module reduces the input quantity of the liquid nitrogen, and after the power of the input motor of the second shaft type spiral section 4 is reduced, the power display displays normal state, and vice versa, and the normal operation and use effect of the spiral soil discharging device can be improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a spiral unearthed ware of freezing device is being taken, includes spiral unearthed ware body and control terminal, its characterized in that: the spiral unearthing device body comprises a first shaft type spiral section (1), a second shaft type spiral section (4) and a freezing pipeline (2), the freezing pipeline (2) is fixedly connected between the first shaft type spiral section (1) and the second shaft type spiral section (4), one end, far away from the freezing pipeline (2), of the second shaft type spiral section (4) is connected with an earth discharge port (5), the freezing pipeline (2) comprises an outer pipe body (9) and an inner pipe body (10), a first cavity (11) is formed between the outer pipe body (9) and the inner pipe body (10), a liquid nitrogen pipeline (8) is arranged inside the first cavity (11), the liquid nitrogen pipeline (8) is spirally wound on the outer wall of the inner pipe body (10), a liquid nitrogen inlet (6) and a liquid nitrogen outlet (7) are respectively formed in the outer wall of the outer pipe body (9), and the liquid nitrogen inlet (6) and the liquid nitrogen outlet (7) are respectively communicated with an inlet and an outlet of the liquid nitrogen pipeline (8), the outer wall of the inner pipe body (10) is also provided with a temperature detector, the outer wall of the outer pipe body (9) is fixedly connected with a temperature detector display (3), and two sides of the freezing pipeline (2) are fixedly connected with valves;
the inside of interior body (10) still is connected with power and becomes layer (12), the outer wall fixedly connected with a plurality of spring (13) on power becomes layer (12), the other end fixed connection of spring (13) with the inner wall of interior body (10), a plurality of storage chamber (15) have been seted up to the inside of interior body (10), store directional deformation ball (18) of a plurality of evenly distributed of chamber (15) inside fixedly connected with.
2. A spiral soil discharging device with a freezing device according to claim 1, wherein: the both sides of directional deformation ball (18) are first elastic membrane (19) and second elastic membrane (20) of fixedly connected with respectively, first elastic membrane (19) and the inside compound powder and restoration glue of packing respectively of second elastic membrane (20), the other both ends of directional deformation ball (18) are the stereoplasm layer, the mid portion on first elastic membrane (19), second elastic membrane (20) and stereoplasm layer forms second cavity (21), second cavity (21) inside is filled with gas, first elastic membrane (19) and second elastic membrane (20) outer wall still fixedly connected with fragility piece.
3. A spiral soil discharging device with a freezing device according to claim 2, wherein: the composite powder is prepared by mixing cement powder, carbon powder and colored pigment, and the mass ratio of the cement powder to the carbon powder to the colored pigment is 5: 3: 2, the color of the colored pigment is red.
4. A spiral soil discharging device with a freezing device according to claim 2, wherein: the gas inside the second cavity (21) is compressed nitrogen.
5. A spiral soil discharging device with a freezing device according to claim 1, wherein: an auxiliary telescopic rod (14) is fixedly connected between the force changing layer (12) and the inner tube body (10), and the spring (13) is sleeved outside the auxiliary telescopic rod (14).
6. A spiral soil discharging device with a freezing device according to claim 1, wherein: a plurality of holes have still been seted up to the outer wall of outer body (9), respectively fixedly connected with connecting pipe (17) and observation pipe (22) in the hole, connecting pipe (17) one end communicates in liquid nitrogen pipeline (8), the other end of connecting pipe (17) and observation pipe (22) is the closure state when not using.
7. A spiral soil discharging device with a freezing device according to claim 1, wherein: the input motor of the second shaft type spiral section (4) is further connected with a power display, the output end of the power display is connected to the input end of the control terminal, the output end of the control terminal is connected with a liquid nitrogen input module, and the liquid nitrogen input module can adjust the input amount of liquid nitrogen.
8. A spiral soil discharging device with a freezing device according to claim 1, wherein: the outer wall of the outer pipe body (9) is further wrapped with a heat insulation layer.
9. A spiral soil discharging device with a freezing device according to claim 1, wherein: the position of the soil discharging port (5) is also provided with a hot brine circulating box, and soil discharged from the second shaft type spiral section (4) is discharged after passing through the hot brine circulating box.
10. A spiral soil discharging device with a freezing device according to claim 1, wherein: one end of the first axial type spiral section (1) and one end of the second axial type spiral section (4) which are close to each other are connected with two ends of the freezing pipeline (2) through bolts.
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| JPH0434199A (en) * | 1990-05-31 | 1992-02-05 | Komatsu Ltd | Partially frozen boring method for earth pressure type shield machine |
| JPH10140985A (en) * | 1996-11-13 | 1998-05-26 | Konoike Constr Ltd | Inspection method by freezing screw conveyer and confirmation method of freezing |
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| CN212804627U (en) * | 2020-08-05 | 2021-03-26 | 崔全刚 | Waterproof drainage device of hydraulic engineering construction |
| CN213929757U (en) * | 2020-10-27 | 2021-08-10 | 山东联塑科技实业有限公司 | PVC tubular product with heat-resisting type prevents frostbite |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0434199A (en) * | 1990-05-31 | 1992-02-05 | Komatsu Ltd | Partially frozen boring method for earth pressure type shield machine |
| JPH10140985A (en) * | 1996-11-13 | 1998-05-26 | Konoike Constr Ltd | Inspection method by freezing screw conveyer and confirmation method of freezing |
| JP2007247235A (en) * | 2006-03-15 | 2007-09-27 | Kajima Corp | Freezing and water-stopping apparatus and freezing and water-stopping method |
| JP2017166210A (en) * | 2016-03-16 | 2017-09-21 | ケミカルグラウト株式会社 | Freezing method |
| CN212804627U (en) * | 2020-08-05 | 2021-03-26 | 崔全刚 | Waterproof drainage device of hydraulic engineering construction |
| CN111946944A (en) * | 2020-08-25 | 2020-11-17 | 东晨阳光(北京)太阳能科技有限公司 | Anti-frost-crack device for pipeline and pipeline |
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