CN110777773A - Vacuum preloading dehydration system for superfine tailing filling pipe bag and implementation method - Google Patents

Abstract

The invention discloses a vacuum prepressing dehydration system of superfine tailing filling pipe bags and a damming implementation method, wherein the vacuum prepressing system of superfine tailing filling pipe bags comprises a geotechnical pipe bag, a movable vacuum prepressing integrated equipment module, a PVC drainage soft belt and a power supply module, can realize functions of slotted hole dialysis, surface fitting, vacuum cover suction, sand filtration drainage, manual movement, water gas replacement, liquid level automatic control, automatic drainage, flexible transportation and the like, provides a mechanized, efficient and flexible low-cost solution for the superfine tailing filling pipe bag damming of a tailing reservoir, specifically solves the problems of limited water content reduction range, high material cost and deficient damming technology based on a high-strength pipe bag flocculation high-pressure dehydration method, breaks through the technical bottleneck of difficult dehydration of the superfine tailing filling pipe bags on the premise of continuously applying flat geotechnical pipe bags in China, provides technical support for further popularization and application of the tube bag method damming construction technology in the field of tailing engineering.

Description

Vacuum preloading dehydration system for superfine tailing filling pipe bag and implementation method

Technical Field

The invention relates to the technical field of engineering pipe bag damming, in particular to a vacuum preloading dehydration system for an ultrafine tailing filling pipe bag and an implementation method.

Background

The geotechnical pipe bag is a technology suitable for rapid dehydration and consolidation of fine particles, and the technical principle is that a large amount of slurry with high water content is filled in the pipe bag, water is rapidly and effectively discharged under the action of the internal pressure of the pipe bag, and solid particles in the slurry are retained. The tube bag technology has the advantages of large processing capacity, small occupied area, safety, environmental protection, low disposal cost and simple and easy technical process. Since the 2010 geotechnical pipe bags are introduced into the field of tailing engineering from the water conservancy industry, the method realizes the dam piling of the fine tailing pipe bags with the particle content of less than 200 meshes of 80-90%, and solves the problem that fine tailings are not suitable for direct dam piling. However, the use of tube bags for disposal of ultra-fine tailings (with less than 200 mesh particle content not less than 90%) has met with difficulties. In the field test process of filling the superfine tailings into the pipe bag, the pipe bag is easy to be blocked, the pipe bag cannot be completely dehydrated and solidified after the filling is finished for a long time, the tailings close to the surface layer of the pipe bag form a thin-layer hard shell, the tailings in the hard shell still have a high-water-content fluid plastic state, and finally the whole body is in a dry-surface and wet-inside state, as shown in fig. 1 and 2, the pipe bag cannot be used for stacking or damming, and further development of the pipe bag technology in the field of tailings disposal is greatly hindered.

The tailing dam is one of the important buildings of a tailing pond for blocking tailings and water. The tailing dam is generally composed of an initial dam (also called a foundation dam) and a later dam (also called a stacking dam), wherein the initial dam is mainly built by soil, stones and other materials, the stacking dam is positioned above the top of the initial dam and is built by heightening and stacking tailings layer by layer, and the tailing dam is composed of a sub-dam and a tailing deposit body in front of the sub-dam. The stacking dam is mainly divided into an upstream type, a middle line type and a downstream type according to a damming mode, and more than 90 percent of domestic tailings ponds adopt the upstream type.

The upstream type damming process is a damming process of taking the central axis of an initial dam as a reference, accumulating tailings in the upstream direction of the initial dam and heightening a dam body. For the upstream type, when the tailings are thick, tailings can be excavated on site on a tailings deposition beach which is away from the top of the dam by a certain distance to construct a stacking dam, and the tailings dam before the last 90 years is constructed by adopting the method; if the tailing particles are finer, the hydraulic cyclone is mostly adopted to classify the warehoused tailings and then dam the warehoused tailings.

In the prior art, firstly, a high-strength geotextile is selected to manufacture a pipe bag; secondly, adding a flocculating agent into the slurry; and then, filling the slurry added with the flocculating agent into the high-strength geotechnical pipe bag by adopting a high-pressure slurry pump with the pressure of more than 0.3 MPa. During filling, the fine particles in the slurry begin to agglomerate under the adsorption action of the flocculating agent, flocculate and precipitate, the water in the slurry is separated out rapidly and escapes from the fabric pores on the surface of the pipe bag under the pressure provided by the high-pressure slurry pump; with the continuous filling process, most solid particles are retained inside the tube bag, and finally the whole tube bag is filled. From the external form, the high-strength pipe bag is in an elliptic cylinder shape after being filled, and has certain difference with the flat pipe bag commonly adopted in China. At present, the application of the technology in China is mainly concentrated in the field of sludge treatment, and no report is found until now when the technology is applied to tailing treatment engineering.

The flocculation high-pressure dehydration method based on the high-strength pipe bag can theoretically solve the dehydration problem of the superfine tailing filling pipe bag, but on-site investigation and experimental demonstration show that the method has three main problems: firstly, the water content reduction amplitude of the superfine tailings has an upper limit, namely the superfine tailings are treated by adopting the method, and the water content of the tailings is difficult to further reduce after being reduced to a certain value; the field examination result also shows that the water content of the sludge treated by the method is basically difficult to further reduce by about 26 percent after the filling of the pipe bag is finished for 1 month; from the technical principle of flocculating agents themselves, when fine particles are agglomerated by the agent, part of the water in the slurry is converted from free water to bound water, which makes it more difficult for the water to be separated out. Secondly, the high-strength pipe bag has high cost, and further popularization and application of the technology are restricted; at present, related geosynthetic material manufacturers in China master the production and manufacturing technology of the high-strength geotextile, but the cost of the high-strength geotextile is far higher than that of the geotextile commonly used in engineering, and the construction and construction units are difficult to accept the high material investment from the cost-saving perspective. Thirdly, the high-strength pipe bag damming technology is deficient, the appearance of the filled high-strength pipe bag is in an elliptic cylinder shape, the height of a single pipe bag can reach 2m, but the pipe bag damming technology is limited by appearance conditions, the stability of the dam formed after the pipe bags are stacked lacks of relevant theoretical support, and no relevant construction experience exists in the domestic engineering industry. Therefore, an efficient dehydration technology for the geotextile tube bag, which is reliable, effective and low in cost, is urgently needed.

Disclosure of Invention

The invention aims to provide a vacuum prepressing dehydration system and an implementation method for superfine tailing filling pipe bags, which can realize functions of slotted hole dialysis, surface fitting, vacuum cover suction, sand filtering drainage, manual movement, water-gas replacement, liquid level automatic control, automatic drainage, flexible transportation and the like, provide a mechanical, efficient and flexible low-cost solution for the superfine tailing filling pipe bag damming of a tailing pond at present, purposefully solve the problems of limited reduction range of water content, high material cost and deficient damming technology based on a high-strength pipe bag flocculation high-pressure dehydration method, break through the technical bottleneck of difficult dehydration of the superfine tailing filling pipe bags on the premise of continuously applying domestic flat geotechnical pipe bags, and provide technical support for further popularization and application of a pipe bag damming construction technology in the field of tailing engineering.

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

the utility model provides a superfine tailing fills irritates a bag vacuum preloading system, includes geotechnological tube bag, the integrated module of equipping of portable vacuum preloading, the soft area of PVC drainage and power module, characterized by: the portable vacuum pre-pressing integrated equipment module is characterized by further comprising a vacuum handheld terminal module and a geotextile tube bag cuff module, wherein the geotextile tube bag cuff module is installed at the top of the geotextile tube bag, the geotextile tube bag cuff module can be connected with the vacuum handheld terminal module, the vacuum handheld terminal module is connected with the portable vacuum pre-pressing integrated equipment module through a vacuum rubber hose, and the portable vacuum pre-pressing integrated equipment module is connected with a power supply module through a high-voltage cable.

Furthermore, the geotechnical pipe bag cuff module comprises a pipe bag cuff and an inverted filter groove hole pipe, the pipe bag cuff is sewn on the geotechnical pipe bag, the inverted filter groove hole pipe is placed in the pipe bag cuff and inserted into the geotechnical pipe bag, the inverted filter groove hole pipe is fixed with the pipe bag cuff by adopting a binding belt or other flexible binding measures, the inverted filter groove hole pipe comprises two parts, namely a steel mesh and a groove hole pipe, the white steel mesh is made into a cylindrical shape, the bottom of the white steel mesh is blocked, the top of the white steel mesh is provided with a hole, and the groove hole pipe is inserted into the white steel mesh from the top of the white steel mesh.

Furthermore, the vacuum handheld terminal module comprises a longitudinal handle, a PE vacuum tube, a 60-degree PE vacuum tube elbow, a stainless steel tube head, a fastening bolt nut, a stainless steel vacuum cover, a stainless steel flange pressing plate, a pad holding bolt nut and a rubber flange cushion; the vertical handle is installed on the PE vacuum pipe, one end of the PE vacuum pipe is connected with a 60-degree PE vacuum pipe elbow, the other end of the PE vacuum pipe elbow is connected with the vacuum rubber hose, the other end of the 60-degree PE vacuum pipe elbow is connected with the stainless steel pipe head in a butt mode, the bottom of the stainless steel pipe head is connected with the stainless steel vacuum cover through the fastening bolt and the fastening nut, and the stainless steel flange pressing plate and the rubber flange cushion are installed on the edge of an opening in the bottom of the stainless steel vacuum cover through the cushion holding bolt and the.

Furthermore, the movable vacuum preloading integrated equipment module comprises a vacuum pumping pipeline part, a vacuum cabin part, a vacuum pumping part, a power control cabinet platform part, a power control cabinet, a drainage part, a vacuum cabin drainage pipe, a vacuum pumping pipe support and a delivery truck; the vacuum pumping pipeline part, the vacuum cabin part, the vacuum pumping part, the power control cabinet platform part, the power control cabinet, the drainage part, the vacuum cabin drainage pipe and the vacuum pumping pipe support are all arranged and installed on the delivery truck; one end of the drainage component is connected with a PVC drainage soft belt.

Further, the power supply module comprises a high-voltage wire, a telegraph pole and an on-pole transformer, wherein the high-voltage wire and the on-pole transformer are both arranged on the telegraph pole; the power access section of the pole transformer is connected with a high-voltage wire, and the other end of the pole transformer is connected with a high-voltage cable; the other end of the high-voltage cable is directly connected to the power supply control cabinet.

Further, the power supply module comprises a high-voltage wire, a telegraph pole and an on-pole transformer, wherein the high-voltage wire and the on-pole transformer are both arranged on the telegraph pole; the power access section of the pole transformer is connected with a high-voltage wire, and the other end of the pole transformer is connected with a high-voltage cable; the other end of the high-voltage cable is directly connected to the power supply control cabinet.

A method for constructing a dam by using a superfine tailing filling bag vacuum preloading system is characterized by comprising the following specific steps of:

(1) the movable vacuum preloading integrated equipment module is transported to a construction site for filling the pipe bags for the superfine tailings to build a dam, meanwhile, a constructor connects one end of a vacuum rubber pipe with a vacuum pumping pipeline part, and the other end of the vacuum rubber pipe is connected with a 90-degree PE vacuum pipe elbow of a vacuum preloading handheld terminal module; then, the PVC drainage soft belt is connected to an external transverse drainage pipe by constructors, and the other end of the drainage soft belt is laid in a tailing pond; meanwhile, the pipe bag filling constructor lays a soil engineering pipe bag in the area to be dammed, and then refills the superfine tailings into the soil engineering pipe bag until the soil engineering pipe bag is full;

(2) one end of a high-voltage cable is connected into a power supply control cabinet of the movable vacuum preloading integrated equipment module by a power technician, and the other end of the high-voltage cable is connected with an on-pole transformer of the power supply module; after the equipment is electrified, a control switch of a vacuum pump motor is turned on in a power control cabinet, and the vacuum pump starts to work; at the moment, a constructor inserts a stainless steel vacuum cover of the vacuum preloading hand-held terminal module into the water pool, checks the integral air tightness of the movable vacuum preloading integrated equipment module and the reliability of the PLC liquid level automatic control system, and turns off a control switch of a vacuum pump motor in the power control cabinet after the movable vacuum preloading integrated equipment module is debugged normally;

(3) inserting the anti-filtration slotted hole pipe into a pipe bag cuff on the geotechnical pipe bag by a pipe bag filling constructor, and firmly binding the pipe bag cuff and the anti-filtration slotted hole pipe by using a binding belt;

(4) a constructor opens a control switch of a vacuum pump motor in the power control cabinet, then covers a stainless steel vacuum cover of the vacuum prepressing hand-held terminal module on a pipe bag cuff and an anti-filtration groove hole pipe, and starts to suck; when the tailings around the cuffs of the pipe bag are sucked to be in a hard state, covering the other cuff with a stainless steel vacuum cover of the vacuum prepressing handheld terminal module, and repeating the process until all the cuff positions at the top of the geotechnical pipe bag are sucked once;

(5) the constructor closes a control switch of a vacuum pump motor in the power control cabinet, then randomly samples on the surface of the geotube bag by using an inserted soil sampler, and tests the water content of the sample on site; if the average water content of the sample is reduced to below 25%, the geotechnical pipe bags have certain shear strength, other geotechnical pipe bags can be laid around or on the top of the layer of pipe bags for filling, and then the steps (3) to (5) are repeated until the height of the geotechnical pipe bag tailing dam reaches the design required elevation.

In conclusion, the invention has the following beneficial effects: by organically combining the relevant modules such as the geotechnical pipe bag, the vacuum prepressing hand-held terminal module, the constructor, the geotechnical pipe bag cuff module, the vacuum rubber hose, the movable vacuum prepressing integrated equipment module, the PVC drainage soft belt, the high-voltage cable and the power supply module, a set of safe, reliable, flexible, high-efficiency, high-mechanization-degree and simple and feasible superfine tailing filling pipe bag vacuum prepressing and dewatering system is formed, and by matching with a scientific and reasonable dam building implementation method, the technical problem that superfine tailings are not suitable for dam building due to difficulty in dewatering is effectively solved, and the improvement and the upgrade of the traditional tailing dam building engineering technology are realized. The stainless steel vacuum cover is arranged in the vacuum prepressing hand-held terminal module in the system, and can be seamlessly attached to the surface of the geotextile tube bag by means of the rubber flange cushion at the bottom of the stainless steel vacuum cover. Compared with a flocculation high-pressure dehydration method based on high-strength pipe bags, the system is oriented to flat pipe bags commonly used in the field of domestic engineering, the material cost of the soil engineering pipe bags can be effectively reduced, the soil engineering pipe bag damming construction process and the dam body stability calculation theory do not need to be adjusted too much, and the engineering design and the construction flow are greatly simplified. The superfine tailing filling pipe bag vacuum preloading dehydration system and the implementation method provided by the invention can provide reference for projects such as dam building of non-ferrous metal mine tailing ponds, comprehensive treatment of municipal sludge, diking of river mouth and coastal reclamation projects and the like in China.

Drawings

FIG. 1 is a photograph of a prior art tube bag filling field test;

FIG. 2 is a photograph of a prior art field sample of wet tube-in-skin bags;

FIG. 3 is a schematic view of the vacuum preloading dehydration system of the ultra-fine tailing filling pipe bag of the present invention;

FIG. 4 is a schematic view of a geotextile bag and cuff module of the present invention;

FIG. 5 is a schematic structural view of a reverse filter cell tube of the present invention;

FIG. 6 is a schematic view of a vacuum preloaded hand held terminal module of the present invention;

FIG. 7 is a schematic view of the construction of the bottom of the vacuum pressure hand held terminal module of the present invention;

FIG. 8 is a schematic view of the internal mechanism of the vacuum preloading hand-held terminal module of the present invention;

FIG. 9 is a schematic view of a mobile vacuum preloading integrated equipment module of the present invention;

FIG. 10 is a schematic diagram of the core detail structure of the vacuum preloading integrated equipment of the present invention;

FIG. 11 is a schematic diagram of a power module of the present invention;

FIG. 12 is a flow chart of an implementation method of the ultrafine tailing filling pipe bag vacuum preloading dehydration system damming of the invention;

in the figure, 1-a geotube bag; 2-vacuum hand-held terminal module; 3-constructor; 4-geotextile tube bag cuff module; 5, vacuum rubber hose; 6, a movable vacuum preloading integrated equipment module; 7-PVC soft drainage belt; 8-high voltage cable; 9-a power supply module; 21-longitudinal handle; 22-PE vacuum tube; PE vacuum pipe elbow of 23-60 degrees; 24-stainless steel pipe heads; 25-fastening bolts and nuts; 26-stainless steel vacuum hood; 27-stainless steel flange platen; 28-pad holding bolt and nut; 29-rubber flange cushion; 41-tube bag cuff; 42-inverse filter cell hole tube; 61-vacuum pumping pipe parts; 62-vacuum chamber components; 63-a vacuum pumping part; 64-power control cabinet platform assembly; 65-power control cabinet; 66-a drainage component; 67-vacuum chamber drain pipe; 68-vacuum suction pipe support; 69-carrying trucks; 91-high voltage line; 92-a utility pole; 93-pole-on-transformer; 211-bottom transverse handle; 212 — a middle transverse handle; 213 — top transverse handle; 231-30 DEG PE vacuum pipe elbow; 232-90 degree PE vacuum pipe elbow; 241-clamping and fixing the nut; 242-nut taper collet; 243-stainless steel pipe conical head; 244-non-woven geotextile; 245-stainless steel flange; 246-stainless steel threaded pipe; 421-white steel net; 422-slotted pipe; 621-vacuum chamber body; 622-vacuum chamber pressure gauge; 623-air supplement valve; 631-vacuum air pipe with cabin; 632-vacuum pressure valve; 633-connecting with a pump vacuum air pipe; 634-vacuum pump suction; 634-vacuum pump pressure gauge; 635-vacuum pump exhaust hole; 636-vacuum pump motor; 637 vacuum pump and motor base; 641 — power control cabinet platform panel; 642-platform vertical beam; 643 — platform raker beam; 65-power control cabinet; 661-external connection of a transverse drain pipe; 662-water valves; 663 centrifugal pump; 664-centrifugal pump motor; 665 centrifugal pump and motor base.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 3, a vacuum preloading system for filling superfine tailings into a bag comprises a geotechnical pipe bag 1, a vacuum preloading handheld terminal module 2, constructors 3, a geotechnical pipe bag cuff module 4, a vacuum rubber hose 5, a movable vacuum preloading integrated equipment module 6, a PVC drainage soft belt 7, a high-voltage cable 8, a power supply module 9 and other main components; the geotechnical pipe bag 1 is filled with superfine tailings, and the geotechnical pipe bag cuff modules 4 are arranged at the top of the geotechnical pipe bag 1 and are staggered in three rows in the length direction; a constructor 3 stands on the surface of the geotechnical pipe bag 1, holds the vacuum prepressing hand-held terminal module 2 and covers the pipe bag cuff module 4; one end of the vacuum rubber hose 5 is connected with an outlet of the vacuum prepressing hand-held terminal module 2, and the other end is connected with a suction port of the movable vacuum prepressing integrated equipment module 6; the water outlet of the movable vacuum preloading integration equipment module 6 is connected with a PVC (polyvinyl chloride) drainage soft belt 7, and the power access port of the movable vacuum preloading integration equipment module 6 is connected with a high-voltage cable 8; the PVC drainage soft belt 7 is directly paved into a tailing pond; the other end of the high-voltage cable 8 is connected with a power supply module 9.

Further, as shown in fig. 4, the geotextile tube bag cuff module 4 is composed of a tube bag cuff 41 and a reversed filter groove hole tube 42; the pipe bag cuffs 41 are directly sewn on the upper surface of the geotechnical pipe bag 1, and the top of the geotechnical pipe bag 1 is arranged in a staggered manner in three rows in the through direction; the length of the anti-filtration slotted hole pipe 42 is about 30cm, the anti-filtration slotted hole pipe 42 is placed in the sleeve opening 41 of the pipe bag and is inserted into the geotechnical pipe bag 1 by about 25-27 cm, and the anti-filtration slotted hole pipe 42 and the sleeve opening 41 of the pipe bag are firmly fixed by using a binding belt or other flexible binding measures.

Further, as shown in fig. 5, the inverted filter slot tube 42 is composed of a white steel mesh 421 and a slot tube 422; wherein the white steel mesh 421 is made into a cylinder shape, the bottom is blocked, and a hole is reserved at the top; the slotted pipe 422 is inserted into the white steel mesh 421 (concrete structure) from a preformed hole at the top of the white steel mesh; after the reverse filtration slotted pipe 42 is inserted into the geotechnical pipe bag 1, the white steel mesh 421 can play a reverse filtration role, and the tailing particles are prevented from flowing into the slotted pipe 421 in a large amount.

Further, as shown in fig. 6, the vacuum preloading hand-held terminal module 2 is composed of a longitudinal handle 21, a PE vacuum tube 22, a PE vacuum tube elbow 23, a stainless steel tube head 24, a fastening bolt and nut 25, a stainless steel vacuum cover 26, a stainless steel flange pressure plate 27, a holding pad bolt and nut 28, a rubber flange soft pad 29 and the like; the longitudinal handle 21 is parallel to the PE vacuum tube body and is connected with the PE vacuum tube body through two sections of transverse handles, so that the PE vacuum tube body is convenient for a constructor 3 to hold; one end of the PE vacuum pipe 22 is connected with a 60-degree PE vacuum pipe elbow 23, and the other end is connected with the vacuum rubber hose 5; the other end of the 60-degree PE vacuum pipe elbow 23 is butted with a stainless steel pipe head 24; 4 bolt holes are formed in a stainless steel flange plate attached to the stainless steel pipe head 24, 4 bolt holes with the same diameter are correspondingly formed in the top of the stainless steel vacuum cover 26, 4 sets of fastening bolt nuts 25 are inserted into the bolt holes, and the stainless steel flange plate of the stainless steel pipe head 24 and the stainless steel vacuum cover 26 are connected into a whole; a 12-hole stainless steel flange pressing plate 27 is arranged at the edge of an opening at the bottom of the stainless steel vacuum cover 26, a rubber flange soft cushion 29 with the thickness of 20-30 mm is arranged at the lower part of the stainless steel vacuum cover, and the rest specifications are completely consistent with those of the stainless steel flange plate 27; bolts and nuts 28 for sleeving the gaskets are inserted into 12 bolt holes corresponding to the stainless steel flange 27 and the rubber flange soft cushion 29, and the stainless steel flange 27 and the rubber flange soft cushion 29 are tightly connected together.

Further, as shown in fig. 7, the vacuum preloading hand-held terminal module 2 further includes a bottom transverse handle 211, a middle transverse handle 212, a top transverse handle 213, a 30 ° PE vacuum pipe elbow 231, a 90 ° PE vacuum pipe elbow 232, a clamping nut 241, a nut tapered chuck 242, a stainless steel pipe tapered head 243, and a non-woven geotextile 244; wherein, one end of the bottom transverse handle 211 is connected with the longitudinal handle 21, and the other end is connected with the PE vacuum tube 22; one end of the middle transverse handle 212 is connected with the longitudinal handle 21, and the other end is also connected with the PE vacuum tube 22; the two sections of the top transverse handle 213 are both connected with the longitudinal handle 21; the PE vacuum pipe 22 is also connected with 2 elbows, one is a 30-degree PE vacuum pipe elbow 231 which is arranged at the middle part of the PE vacuum pipe 22, and the other is a 90-degree PE vacuum pipe elbow 232 which is arranged at the end part of the PE vacuum pipe 22; the bottom of the stainless steel tube head 24 is provided with a clamping nut 241, the bottom of the clamping nut 241 is provided with a nut conical chuck 242, the clamping nut 241 and the nut conical chuck 242 are integrated and can be screwed up and down along the stainless steel tube head 241; the bottom of the stainless steel pipe head 24 is connected with a stainless steel pipe conical head 243, and the stainless steel pipe conical head 243 penetrates through the middle of the clamping nut 241 and the nut conical chuck 242; the surface of the stainless steel pipe conical head 243 is covered with a layer of non-woven geotextile 244, the clamping nut 241 is screwed upwards, the inner surface of the nut conical clamping head 242 can contact and clamp the outer surface of the stainless steel pipe conical head 243, the edge of the non-woven geotextile 244 is clamped, and therefore the non-woven geotextile is firmly fixed on the surface of the stainless steel pipe conical head 243, and the purpose of filtering and dewatering soil is achieved; in addition, the bolt head of the cushion holding bolt nut 28 is sunken in the rubber flange cushion 29 and is slightly lower than the surface of the rubber flange cushion 29, so that air leakage caused by the fact that the cushion holding bolt nut cannot be tightly attached after being protruded is prevented.

Further, as shown in fig. 8, the detailed structure of the vacuum preloading hand-held terminal module 2 further includes two main parts, namely a stainless steel flange plate 245 and a stainless steel threaded pipe 246; wherein, the stainless steel flange plate 245 is additionally provided with 4 screw holes and is welded at the bottom of the stainless steel pipe head 24; the bottom of the stainless steel flange plate 245 is connected with a stainless steel threaded pipe 246; the clamping nut 241 and the nut cone 242 are an integral structure, and are integrally sleeved on the stainless steel threaded pipe 246, so that the clamping nut can be screwed up and down.

Further, as shown in fig. 9, the mobile vacuum preloading integrated equipment module 6 is composed of key components such as a vacuum pumping pipeline component 61, a vacuum cabin component 62, a vacuum pumping component 63, a power control cabinet platform component 64, a power control cabinet 65, a drainage component 66, a vacuum cabin drainage pipe 67, a vacuum pumping pipe support 68, and a delivery truck 69; the vacuum pumping pipeline part 61, the vacuum cabin part 62, the vacuum pumping part 63, the power control cabinet platform part 64, the power control cabinet 65, the drainage part 66, the vacuum cabin drainage pipe 67 and the vacuum pumping pipe support 68 are the core of the movable vacuum preloading integrated equipment module 6, and are arranged on a delivery truck 69, so that the rapid hauling and the flexible moving can be realized; one end of the drainage component 66 is connected with the PVC drainage soft belt 7.

Further, as shown in fig. 10, the core detailed structure of the mobile vacuum preloading integrated equipment module 6 includes a vacuum chamber body 621, a vacuum chamber pressure gauge 622, an air make-up valve 623, a chamber connecting vacuum air pipe 631, a vacuum pressure valve 632, a pump connecting vacuum air pipe 633, a vacuum pump suction port 634, a vacuum pump pressure gauge 634, a vacuum pump exhaust hole 635, a vacuum pump motor 636, a vacuum pump and motor base 637, a power control cabinet platform panel 641, a platform vertical beam 642, a platform diagonal beam 643, an external transverse drain pipe 661, a water valve 662, a centrifugal pump 663, a centrifugal pump motor 664, a centrifugal pump and motor base 665; one end of the vacuum pumping pipeline component 61 is connected with the top of the vacuum chamber body 621, and the other end extends to the outside of the carrying truck 69; a vacuum suction pipe support 68 is welded to the end of the wagon adjacent the exterior of the delivery wagon 69 for supporting the vacuum suction pipe section 61; a vacuum chamber pressure gauge 622 is installed at the top of the vacuum chamber body 621 and is used for displaying the internal pressure value of the vacuum chamber body 621; a cabin connecting vacuum pipe 631 is further mounted at the top of the vacuum cabin body 621, and the other end of the cabin connecting vacuum pipe is connected with a vacuum pressure valve 632 for controlling the pressure inside the vacuum cabin body 621; the surface of the middle lower part of the vacuum chamber body 621 is connected with an air supply valve 623 which is used for supplying air to the interior of the vacuum chamber body 621; the other end of the vacuum pressure valve 632 is connected with a pump vacuum air pipe 633; the other end of the pump connecting vacuum air pipe 633 is connected with a vacuum pump suction port 634; the vacuum pump pressure gauge 634 is arranged on the vacuum pump body and is used for displaying the running working state of the vacuum pump; the vacuum pump is driven by a vacuum pump motor 636 connected with the vacuum pump; a vacuum pump exhaust hole 635 is also formed in the vacuum pump body; the vacuum pump and vacuum pump motor 636 is integrally fixed on the vacuum pump and motor support 637; the power control cabinet 65 is fixedly installed on the surface of the power control cabinet platform panel 641; the power control cabinet platform panel 641 is supported by 4 platform vertical beams 642 connected thereto; in order to ensure the stability of the whole platform, a platform inclined strut beam 643 is additionally arranged between 4 platform vertical beams 642; one end of an external transverse drain pipe 661 is connected with the middle upper part of the vacuum chamber body 621, the other end is connected with a water pumping port of a centrifugal pump 663, and the centrifugal pump 663 is driven by a centrifugal pump motor 664 connected with the centrifugal pump motor; the centrifugal pump 663 and the centrifugal pump motor 664 are both fixedly arranged on the centrifugal pump and motor base 665; the vacuum pump motor 636 and the centrifugal pump motor 664 are connected with the power supply control cabinet 65 through cables; in addition, install the level gauge in the vacuum chamber cabin 621 internally, its PLC switch board and power supply cabinet are integrated to be installed inside power control cabinet 65, if the inside liquid level of vacuum chamber cabin 621 surpasses certain numerical value, then the PLC switch board sends the instruction, and automatic control centrifugal pump 663 starts, takes the inside liquid of vacuum chamber cabin 621 out, and automatic control centrifugal pump 663 closes after certain low liquid level, prevents that the inside liquid level of vacuum chamber cabin 621 is too high.

Further, as shown in fig. 11, the power supply module 9 mainly includes a high-voltage line 91, a utility pole 92, and an on-pole transformer 93; wherein the high voltage line 91 and the pole transformer 93 are both mounted on the pole 92; the power access section of the pole-mounted transformer 92 is connected with a high-voltage wire, and the other end of the pole-mounted transformer is connected with a high-voltage cable 8; the other end of the high-voltage cable 8 is directly connected to the power control cabinet 65 to provide power for the whole set of equipment.

As shown in fig. 12, an implementation method of a superfine tailing filling pipe bag vacuum preloading dehydration system in a tailing storehouse damming project is as follows: (1) the movable vacuum preloading integrated equipment is transported to a construction site, meanwhile, a geotechnical pipe bag is laid manually, and the superfine tailings are filled into the pipe bag until the pipe bag is full;

(2) after the equipment arrives at the site, the equipment is parked at a position close to the pipe bag filling site, the power required by the equipment is accessed through the transformer closest to the equipment, the number of the transformers on the site can be properly increased under the condition of permission, and then the equipment debugging is carried out in an idle state until the equipment stably runs;

(3) in the implementation process of the step (2), filling constructors open the cuffs of the pipe bags, and a reversed filter tank hole pipe is inserted into each cuff and is firmly bound;

(4) opening a vacuum pump switch, enabling a constructor to hold the vacuum preloading hand-held terminal station on the pipe bag in a hand-held mode, enabling the terminal station to cover each cuff to start pumping, and switching one cuff after pumping for a period of time until all cuffs are pumped once;

(5) after the pumping is finished, closing the equipment centrifuge, starting random sampling at the top of the pipe bag and detecting the water content of the tailings, and if the water content is more than 25%, pumping the part of the sleeve opening nearby the pipe bag again after the part is marked; if the water content is less than 25%, determining whether the stacking height of the pipe bag reaches the design height of the tailing dam; if not, continuously laying the pipe bags on the layer of pipe bags, and repeating the steps (3) to (5); if so, the construction can be stopped.

Further, in combination with the field practical application, as shown in fig. 3 to 12, the implementation method of the system of the present invention is further explained in detail:

(1) the movable vacuum preloading integrated equipment module 6 is transported to a construction site for filling the pipe bags for the superfine tailings to build a dam, meanwhile, a constructor 3 connects one end of a vacuum rubber pipe 5 with a vacuum pumping pipeline part 61, and the other end of the vacuum rubber pipe is connected with a 90-degree PE vacuum pipe elbow 232 of the vacuum preloading handheld terminal module 2; then, the constructor 3 connects the PVC drainage soft belt 7 to the external transverse drainage pipe 661, and the other end of the drainage soft belt 7 is laid in the tailing pond; meanwhile, a pipe bag filling constructor lays a soil engineering pipe bag 1 in the area to be dammed, and then refills the superfine tailings into the soil engineering pipe bag 1 until the pipe bag is full;

(2) a power technician inserts one end of the high-voltage cable 8 into the power control cabinet 65 of the movable vacuum preloading integrated equipment module 6, and the other end of the high-voltage cable is connected with the pole transformer 93 of the power supply module 9; after the equipment is powered on, a control switch of a vacuum pump motor 636 is turned on in the power control cabinet 65, and the vacuum pump starts to work; at the moment, the constructor 3 inserts the stainless steel vacuum cover 26 of the vacuum preloading hand-held terminal module 2 into the water pool, checks the integral air tightness of the movable vacuum preloading integrated equipment module 6 and the reliability of the PLC liquid level automatic control system, and turns off a control switch of a vacuum pump motor 636 in the power control cabinet 65 after the debugging is normal;

(3) the pipe bag filling constructor inserts the inverted filter slot hole pipe 42 into the pipe bag cuff 41 on the geotechnical pipe bag 1, and the pipe bag cuff 41 and the inverted filter slot hole pipe 42 are firmly bound by a binding belt;

(4) the constructor 3 opens a control switch of a vacuum pump motor 636 in the power control cabinet 65, then covers the stainless steel vacuum cover 26 of the vacuum preloading hand-held terminal module 2 on the pipe bag cuff 41 and the anti-filter slot hole pipe 42, and starts to suck; when the tailings around the cuffs of the pipe bag are in a hard state, covering the other cuff with the stainless steel vacuum cover 26 of the vacuum prepressing handheld terminal module 2, and repeating the process until all the cuff positions on the top of the geotechnical pipe bag 1 are pumped once;

(5) the constructor 3 closes a control switch of a vacuum pump motor 636 in the power control cabinet 65, then randomly samples on the surface of the geotechnical pipe bag 1 by using an inserted soil sampler, and tests the water content of the sample on site; if the average water content of the sample is reduced to below 25%, the geotechnical pipe bag 1 has certain shear strength, other geotechnical pipe bags can be laid around or on the top of the layer of pipe bag for filling, and then the steps (3) to (5) are repeated until the height of the geotechnical pipe bag tailing dam reaches the elevation required by design.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (6)

1. The utility model provides a superfine tailing fills irritates a bag vacuum preloading system, includes geotechnological pipe bag (1), portable vacuum preloading integration equipment module (6), soft area of PVC drainage (7) and power module (9), characterized by: still include terminal module (2) and geotechnological pipe bag cuff module (4) are handed in vacuum, a plurality of geotechnological pipe bag cuff modules (4) are installed at geotechnological pipe bag (1) top, geotechnological pipe bag cuff module (4) can be handed terminal module (2) with the vacuum and be connected, and the terminal module is handed in vacuum (2) and is equipped module (6) with portable vacuum preloading and be connected through vacuum rubber hose (5), portable vacuum preloading is integrated to be equipped module (6) and is connected with power module (9) through high tension cable (8).

2. The superfine tailing fills irritates a bag vacuum preloading system of claim 1, characterized by: geotechnical pipe bag cuff module (4) comprises pipe bag cuff (41) and anti-filtration slotted hole pipe (42), pipe bag cuff (41) are made up on geotechnical pipe bag (1), and anti-filtration slotted hole pipe (42) are placed in pipe bag cuff (41) and are inserted inside geotechnical pipe bag (1), adopt ribbon or other flexible ligature measure with anti-filtration slotted hole pipe (42) and pipe bag cuff (41) fixed, anti-filtration slotted hole pipe (42) comprise steel mesh (421) and slotted hole pipe (422) two parts, cylindric is made to white steel mesh (421), its bottom shutoff, and the top is opened there is a hole, and slotted hole pipe (422) are inserted in white steel mesh (421) top.

3. The superfine tailing fills irritates a bag vacuum preloading system of claim 2, characterized by: the vacuum handheld terminal module (2) comprises a longitudinal handle (21), a PE vacuum tube (22), a 60-degree PE vacuum tube elbow (23), a stainless steel tube head (24), a fastening bolt and nut (25), a stainless steel vacuum cover (26), a stainless steel flange pressing plate (27), a cushion holding bolt and nut (28) and a rubber flange cushion (29); the vertical handle (21) is installed on a PE vacuum pipe (22), one end of the PE vacuum pipe (22) is connected with a 60-degree PE vacuum pipe elbow (23), the other end of the PE vacuum pipe elbow (23) is connected with a vacuum rubber hose (5), the other end of the 60-degree PE vacuum pipe elbow (23) is in butt joint with a stainless steel pipe head (24), the bottom of the stainless steel pipe head (24) is connected with a stainless steel vacuum cover (26) through a fastening bolt nut (25), and a stainless steel flange pressure plate (27) and a rubber flange cushion (29) are installed on the bottom opening edge of the stainless steel vacuum cover (26) through a cushion holding bolt nut (28).

4. The vacuum preloading system for the filling bags of ultrafine tailings as claimed in claim 3, wherein: the mobile vacuum preloading integrated equipment module (6) comprises a vacuum pumping pipeline part (61), a vacuum cabin part (62), a vacuum pumping part (63), a power control cabinet platform part (64), a power control cabinet (65), a drainage part (66), a vacuum cabin drainage pipe (67), a vacuum pumping pipe support (68) and a delivery truck (69); the vacuum pumping pipeline part (61), the vacuum cabin part (62), the vacuum pumping part (63), the power control cabinet platform part (64), the power control cabinet (65), the drainage part (66), the vacuum cabin drainage pipe (67) and the vacuum pumping pipe bracket (68) are all arranged and installed on a delivery truck (69); one end of the drainage component (66) is connected with the PVC drainage soft belt (7).

5. The superfine tailing fills irritates a bag vacuum preloading system of claim 4, characterized by: the power supply module (9) comprises a high-voltage wire (91), a telegraph pole (92) and an on-pole transformer (93), wherein the high-voltage wire (91) and the on-pole transformer (93) are both arranged on the telegraph pole (92); the power access section of the pole-mounted transformer (92) is connected with a high-voltage wire, and the other end of the pole-mounted transformer is connected with a high-voltage cable (8); the other end of the high-voltage cable (8) is directly connected to the power supply control cabinet (65).

6. A method for constructing a dam by using a superfine tailing filling bag vacuum preloading system is characterized by comprising the following steps: the vacuum preloading system of claim 5 is applied for construction, and the specific steps are as follows:

(1) the movable vacuum preloading integrated equipment module is transported to a construction site for filling the pipe bags for the superfine tailings to build a dam, meanwhile, a constructor connects one end of a vacuum rubber pipe with a vacuum pumping pipeline part, and the other end of the vacuum rubber pipe is connected with a 90-degree PE vacuum pipe elbow of a vacuum preloading handheld terminal module; then, the PVC drainage soft belt is connected to an external transverse drainage pipe by constructors, and the other end of the drainage soft belt is laid in a tailing pond; meanwhile, the pipe bag filling constructor lays a soil engineering pipe bag in the area to be dammed, and then refills the superfine tailings into the soil engineering pipe bag until the soil engineering pipe bag is full;

(2) one end of a high-voltage cable is connected into a power supply control cabinet of the movable vacuum preloading integrated equipment module by a power technician, and the other end of the high-voltage cable is connected with an on-pole transformer of the power supply module; after the equipment is electrified, a control switch of a vacuum pump motor is turned on in a power control cabinet, and the vacuum pump starts to work; at the moment, a constructor inserts a stainless steel vacuum cover of the vacuum preloading hand-held terminal module into the water pool, checks the integral air tightness of the movable vacuum preloading integrated equipment module and the reliability of the PLC liquid level automatic control system, and turns off a control switch of a vacuum pump motor in the power control cabinet after the movable vacuum preloading integrated equipment module is debugged normally;

(3) inserting the anti-filtration slotted hole pipe into a pipe bag cuff on the geotechnical pipe bag by a pipe bag filling constructor, and firmly binding the pipe bag cuff and the anti-filtration slotted hole pipe by using a binding belt;

(4) a constructor opens a control switch of a vacuum pump motor in the power control cabinet, then covers a stainless steel vacuum cover of the vacuum prepressing hand-held terminal module on a pipe bag cuff and an anti-filtration groove hole pipe, and starts to suck; when the tailings around the cuffs of the pipe bag are sucked to be in a hard state, covering the other cuff with a stainless steel vacuum cover of the vacuum prepressing handheld terminal module, and repeating the process until all the cuff positions at the top of the geotechnical pipe bag are sucked once;

(5) the constructor closes a control switch of a vacuum pump motor in the power control cabinet, then randomly samples on the surface of the geotube bag by using an inserted soil sampler, and tests the water content of the sample on site; if the average water content of the sample is reduced to below 25%, the geotechnical pipe bags have certain shear strength, other geotechnical pipe bags can be laid around or on the top of the layer of pipe bags for filling, and then the steps (3) to (5) are repeated until the height of the geotechnical pipe bag tailing dam reaches the design required elevation.

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