Inner support expanding type electroosmosis anode device

Abstract

The utility model discloses an inner support expansion type electroosmosis anode device, which relates to the field of soft soil foundation treatment equipment and comprises an electrode module and a push-pull component, the electrode module is movably connected to the periphery of the push-pull component, and the push-pull component drives the electrode module to expand outwards or contract inwards to reset. The electroosmosis reinforcing device is reasonable in layout and simple in structure, effectively reduces contact resistance between sludge and the electrodes, further reduces loss of electric energy, and improves electroosmosis reinforcing efficiency. And meanwhile, the electrode module adopts detachable connection, and the rusted anode plate can be independently replaced, so that the maintenance is convenient, and the reutilization of other parts is realized.

Description

Technical Field

[0001] The utility model relates to the field of soft soil foundation treatment equipment, in particular to an internally supported and expanded electroosmotic anode device. Background Art

[0002] In the coastal and river areas of our country, silt or silty clay is widely distributed. Due to the special geological environment, such soils usually have high water content, strong compressibility and low bearing capacity, and need to be reinforced before engineering construction. Conventional reinforcement methods include vacuum preloading technology, drainage consolidation method, composite foundation method, replacement method, curing agent stabilization method, etc.

[0003] As a soft soil foundation treatment method, the electroosmosis method can drain water quickly and is convenient for construction, which has attracted the attention of many researchers and has also been applied in some actual projects. The principle of the electroosmosis method is to use the electric potential as the driving force for water molecules in the soil body, and migrate and drain the free water and weakly bound water in the soil body to the anode, so as to achieve the purpose of accelerating the drainage consolidation of the soil body and enhancing the strength of the soil body. Macroscopically, it is manifested that the water content of the soil near the anode decreases, the water content of the soil near the cathode increases, and the bearing capacity of the soil near the anode is improved. However, in the long-term application practice, it is found that the silt near the anode cracks due to water loss during the electroosmosis process, the contact degree between the anode and the silt weakens, and the contact resistance between the two will increase rapidly, resulting in slow electroosmotic drainage rate and reduced electroosmotic efficiency in the later stage. The electrode itself is also constantly corroded, and the oxides formed by the corrosion will adhere to the surrounding of the electrode, thus forming an additional resistance layer, reducing the conductivity of the entire electroosmotic system, and increasing the waste and consumption of electric energy.

[0004] Existing research can improve the electroosmotic efficiency to a certain extent by optimizing the electrode material, electrode arrangement form and compaction-electroosmosis combined reinforcement, etc., but the reinforcement effect is not very ideal, and the problem that the cracking of the silt after dehydration affects the electroosmosis efficiency has not been solved. Therefore, there is an urgent need for an improved electroosmotic reinforcement device to achieve the purpose of quickly and efficiently reinforcing the silt. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an internally supported and expanded electroosmotic anode device, which is convenient and fast to use, can quickly and efficiently reinforce the silt, and solves the problems of low electroosmotic efficiency and unsatisfactory reinforcement effect in the prior art.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An internally supported and expanded electroosmotic anode device of the utility model includes an electrode module and a push-pull assembly. The electrode module is movably connected to the outer periphery of the push-pull assembly, and the push-pull assembly drives the electrode module to expand outward or contract inward and reset.

[0008] Preferably, the push-pull assembly includes an anchor rod and multiple groups of support rods. The multiple groups of support rods are hinged to the outer peripheral surface of the anchor rod at equal intervals, and a conical drill bit is fixed to the lower end of the anchor rod.

[0009] Each group of support rods includes multiple rods. One end of a single support rod is hinged to the anchor rod through a second wing plate, and the other end of the single support rod is hinged to the inner side wall of the electrode module through a first wing plate.

[0010] Preferably, the second wing plate is welded to the outer peripheral surface of the anchor rod through a second hinge seat, and the first wing plate is welded to the inner side wall of the electrode module through a first hinge seat.

[0011] Preferably, multiple guide grooves are longitudinally formed on the outer peripheral surface of the anchor rod, and brass wires are buried in the guide grooves. The anode plate of the electrode module is connected to a power source through the brass wires, and the positions of the guide grooves correspond to the support rods one by one.

[0012] Preferably, the electrode module is arranged in a multi-layer structure, including an arc-shaped steel plate, a plastic plate, an anode plate, and a conductive sponge arranged in sequence. After the arc-shaped steel plate, the plastic plate, the anode plate, and the conductive sponge are stacked in order, they are connected together by fastening screws; the first hinge seat is welded to the inner side wall of the arc-shaped steel plate.

[0013] Preferably, the plastic plate is adhesively fixed to the outer side of the arc-shaped steel plate, a detachable anode plate is fixed to the outer side of the plastic plate, the conductive sponge is pasted to the outer side of the detachable anode plate, and the anode plate is connected to an external power source through a wire.

[0014] Preferably, wire through holes are reserved on the arc-shaped steel plate and the plastic plate.

[0015] Preferably, the material of the anode plate is iron, aluminum, copper, stainless steel, or graphite. The anchor rod, support rods, arc-shaped steel plate, first wing plate, first hinge seat, second wing plate, and second hinge seat are made of metal materials, and the metal materials are selected as carbon alloy steel materials.

[0016] Preferably, electroplated anti-corrosion layers or sprayed anti-rust paint layers are provided on the surfaces of the anchor rod, support rods, arc-shaped steel plate, first wing plate, first hinge seat, second wing plate, and second hinge seat.

[0017] Preferably, after the electrode module is connected to the push-pull assembly, a limiting ring is arranged on the outer side of one end or both ends of the arc-shaped steel plate; a through hole for installing an auxiliary rod is radially formed at the top end of the anchor rod.

[0018] Compared with the prior art, the beneficial technical effects of the present utility model are:

[0019] The utility model relates to an internally supported and expanded electroosmotic anode device, which comprises an electrode module and a push-pull assembly. The electrode module is movably connected to the outer periphery of the push-pull assembly, and the push-pull assembly drives the electrode module to expand outwards or contract inwards for resetting. Among them, the push-pull assembly includes an anchor rod and multiple groups of support rods. The electrode module is composed of an arc-shaped steel plate, a plastic plate, an anode plate, and a conductive sponge connected in sequence. The inner side of the arc-shaped steel plate is movably connected to the anchor rod through a hinge of the support rod. When in use, before electroosmotic treatment, the strength of the silt is relatively low, and the device can be directly inserted into the silt by static pressure; when cracks are observed on the surface of the silt, the top limiting ring is removed, and the anchor rod is pressed down vertically to push the support rods to open outwards, so as to push the arc-shaped steel plate to move radially towards the silt to be reinforced and extruded, thereby compacting the silt with cracks, and making the conductive sponge and the silt contact more fully, reducing the loss of interface resistance, and further reducing energy loss; after electroosmosis is completed, lifting the anchor rod can make the expansion assembly retract, so as to complete the recovery operation.

[0020] The utility model has a reasonable layout and a simple structure, effectively reducing the contact resistance between the silt and the electrode, thereby reducing the power consumption and improving the efficiency of electroosmotic reinforcement; at the same time, the electrode module adopts a detachable connection, and the rusty anode plate can be replaced separately, which is convenient for maintenance and realizes the reusable of other parts. Brief Description of the Drawings

[0021] The following further describes the present utility model with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the closed state of the internally supported and expanded electroosmotic anode device of the present utility model;

[0023] Figure 2 It is a schematic diagram of the open state of the internally supported and expanded electroosmotic anode device of the present utility model;

[0024] Figure 3 It is a top view (closed state) of the internally supported and expanded electroosmotic anode device of the present utility model;

[0025] Figure 4 It is a front view of the detachable electrode plate of the present utility model.

[0026] Description of the reference numerals: 1. Electrode module; 2. Expansion assembly; 3. Tapered drill bit;

[0027] 101. Arc-shaped steel plate; 102. Plastic plate; 103. Anode plate; 104. Conductive sponge; 105. First wing plate; 106. Fastening screw; 107. First hinge seat; 108. Limiting ring;

[0028] 201. Anchor rod; 202. Support rod; 203. Second wing plate; 204. Second hinge seat; 205. Guide groove; 206. Brass wire. Detailed implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] As Figures 1-4 shown, an inner support expansion type electroosmotic anode device includes an electrode module 1 and a push-pull assembly 2. The electrode module 1 is movably connected to the outer periphery of the push-pull assembly 2, and the push-pull assembly 2 drives the electrode module 1 to expand outwards or contract inwards and reset.

[0031] Specifically, the push-pull assembly 2 includes an anchor rod 201 and multiple groups of support rods 202. The multiple groups of support rods 202 are equally spaced and hinged on the outer peripheral surface of the anchor rod 201. A conical drill bit 3 is fixed at the lower end of the anchor rod 201, which can effectively reduce the resistance during the insertion process; each group of support rods 202 includes multiple ones. One end of a single support rod 202 is hinged to the anchor rod 201 through a second wing plate 203, and the other end of the single support rod 202 is hinged to the inner side wall of the electrode module 1 through a first wing plate 105.

[0032] Specifically, the second wing plate 203 is welded to the outer peripheral surface of the anchor rod 201 through a second hinge seat 204, and the first wing plate 105 is welded to the inner side wall of the electrode module 1 through a first hinge seat 107.

[0033] A plurality of guide grooves 205 are longitudinally opened on the outer peripheral surface of the anchor rod 201. Brass wires 206 are buried in the guide grooves 205. The anode plate 103 of the electrode module 1 is connected to a power source through the brass wires 206. The positions of the guide grooves 205 correspond to the support rods 202 one by one.

[0034] As Figure 3 shown, in one specific embodiment, the anchor rod 201 is made of a solid high-carbon steel rod. Four second wing plates 203 and four second hinge seats 204 are installed on the side wall of the anchor rod 201. Similarly, the support rods 202 are divided into four groups and are respectively hinged to the second wing plates 203 and the first wing plates 105; four guide grooves 205 are longitudinally opened on the anchor rod 201 and are evenly distributed in a circle. Four brass wires 206 pass through the guide grooves 205 to connect the electrode module 1 to the power source.

[0035] As Figure 4As shown, the electrode module 1 is arranged in a multi-layer structure, including an arc-shaped steel plate 101, a plastic plate 102, an anode plate 103, and a conductive sponge 104 arranged in sequence. The arc-shaped steel plate 101, plastic plate 102, anode plate 103, and conductive sponge 104 are stacked in order and connected together by fastening screws 106; the first hinge seat 107 is welded on the inner side wall of the arc-shaped steel plate 101. Among them, unconsolidated silt is a non-Newtonian fluid with relatively small cohesion, and lateral fluid loads should be noted in the early stage of electroosmosis; multiple arc-shaped steel plates form the lateral force-resistant members of the device, which can be cut from circular hollow steel pipes; in order to increase strength, the plate thickness can be increased or stiffeners can be provided to improve stiffness; the function of the plastic plate 102 is to isolate the current from passing through the metal components of the device and ensure that all the current enters the silt to be consolidated through the anode plate.

[0036] Specifically, the plastic plate 102 is adhesively fixed to the outer side of the arc-shaped steel plate 101, the detachable anode plate 103 is fixed to the outer side of the plastic plate 102, the conductive sponge 104 is pasted on the outer side of the detachable anode plate 103, and the anode plate 103 is connected to an external power supply through a wire. Among them, screw holes are reserved on both the plastic plate 102 and the arc-shaped steel plate 101, and the anode plate 103 is fixed between the plastic plate 102 and the arc-shaped steel plate 101 through the fastening screw 106. When the anode plate is severely corroded, only the fastening screw needs to be removed to replace the anode plate, which is convenient and fast to operate, and other parts can be reused, reducing the maintenance cost of the device.

[0037] Specifically, wire through holes are reserved on the arc-shaped steel plate 101 and the plastic plate 102 for the brass wire 206 to pass through; specifically, the brass wire passes under the wing plate and is respectively connected to the anode plate 103 and the positive pole of the power supply. Among them, the number and position of the brass wire 206 and the anode plate 103 correspond one by one.

[0038] The material of the anode plate 103 is iron, aluminum, copper, stainless steel, or graphite. The anchor rod 201, support rod 202, arc-shaped steel plate 101, first wing plate 105, first hinge seat 107, second wing plate 203, and second hinge seat 204 are made of metal materials, and the metal materials are selected as carbon alloy steel materials.

[0039] The surfaces of the anchor rod 201, support rod 202, arc-shaped steel plate 101, first wing plate 105, first hinge seat 107, second wing plate 203, and second hinge seat 204 are all provided with an electroplated anti-corrosion layer or a sprayed anti-rust paint layer to improve the corrosion resistance of each component and extend the service life of the device.

[0040] After the electrode module 1 is connected to the push-pull assembly 2, a limiting ring 108 is arranged on the outer side of one end or both ends of the arc-shaped steel plate 101; a through hole for installing an auxiliary rod is radially opened at the top of the anchor rod 201.

[0041] In one specific embodiment, three groups of support rods 202 are provided and arranged at equal intervals from top to bottom. Each group of support rods 202 includes four rods and is circumferentially arranged evenly. Correspondingly, four electrode modules 1 are provided and are circumferentially arranged evenly. One support rod 202 is correspondingly connected to one electrode module 1 and drives it to expand outward or contract inward and reset. In the closed state, the electrode modules 1 enclose a ring and are coaxially distributed with the anchor rod 201.

[0042] Specifically, each group of support rods 202 can also be set to three, and the corresponding electrode modules 1 are provided with three. It can also be set to five or six. That is, when the number of electrode modules 1 is set to 2 to 6, the splitting angles of the arc-shaped steel plates 101 are 180°, 120°, 90°, 72°, 60° respectively; specifically, a reasonable selection is made according to actual needs.

[0043] The using process of the utility model is as follows:

[0044] First of all, when in use, this device needs to be used in cooperation with a power supply and a cathode (not shown in the figure). Specifically, the cathode uses a traditional metal electrode material and is connected to the negative pole of an external DC power supply through an electric wire, and is arranged on the outside of this device in a plum blossom shape (the number of cathodes is the same as the number of anode plates and they correspond to each other in position), so as to form a DC electric field inside the silt. The interstitial water in the silt will flow from the anode to the cathode under the action of the electric field.

[0045] Before electroosmotic treatment, the strength of the silt is relatively low, and this device in the closed state can be directly statically pressed into the silt; at this time, a limiting ring 108 for positioning is connected to the top of the device;

[0046] When cracks are observed on the surface of the silt, remove the limiting ring, press down the anchor rod 201 in the vertical direction, push the support rods 202 to open outward, and further push the arc-shaped steel plates 101 to move radially and squeeze the silt to be reinforced, so as to compact the silt with cracks, and make the outermost conductive sponge 104 contact the silt more fully, reduce the loss of interface resistance, and thus reduce energy loss;

[0047] After electroosmosis is completed, lifting the anchor rod 201 can make the expansion assembly 2 retract inward, so as to complete the recovery operation.

[0048] Among them, during the pressing and lifting process of the anchor rod 201, a horizontal auxiliary rod can be inserted into the top through hole first, and then the corresponding operation can be carried out. It is convenient to apply force through the auxiliary rod, and the operation is more convenient and fast.

[0049] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0050] The above-described embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An internally supported expansion type electroosmosis anode device, characterized in that: It comprises an electrode module (1) and a push-pull assembly (2), wherein the electrode module (1) is movably connected to the outer periphery of the push-pull assembly (2), and the push-pull assembly (2) drives the electrode module (1) to expand outwards or contract inwards to reset; The push-pull assembly (2) comprises an anchor rod (201) and a plurality of groups of support rods (202), wherein the plurality of groups of support rods (202) are hinged to the outer peripheral surface of the anchor rod (201) at equal intervals, and a conical drill bit (3) is fixed to the lower end of the anchor rod (201); each group of support rods (202) comprises a plurality of support rods, one end of a single support rod (202) is hinged to the anchor rod (201) via a second wing plate (203), and the other end of the single support rod (202) is hinged to the inner side wall of the electrode module (1) via a first wing plate (105); The electrode module (1) is configured as a multi-layer structure, comprising an arc-shaped steel plate (101), a plastic plate (102), an anode plate (103) and a conductive sponge (104) arranged in sequence, wherein the arc-shaped steel plate (101), the plastic plate (102), the anode plate (103) and the conductive sponge (104) are stacked in sequence and connected together by fastening screws (106).

2. The internally supported expansion type electroosmosis anode device according to claim 1, characterized in that: The second wing plate (203) is welded to the outer peripheral surface of the anchor rod (201) through a second hinge seat (204), and the first wing plate (105) is welded to the inner wall of the electrode module (1) through a first hinge seat (107); the first hinge seat (107) is welded to the inner wall of the arc-shaped steel plate (101).

3. The internally supported expansion type electroosmosis anode device according to claim 1, characterized in that: A plurality of guide grooves (205) are longitudinally provided on the outer peripheral surface of the anchor rod (201), a brass wire (206) is embedded in the guide groove (205), the anode plate (103) of the electrode module (1) is connected to a power source via the brass wire (206), and the position of the guide groove (205) corresponds one-to-one to the support rod (202).

4. The internally supported expansion type electroosmosis anode device according to claim 1, characterized in that: The outer side of the arc-shaped steel plate (101) is bonded and fixed to the plastic plate (102), the outer side of the plastic plate (102) is fixed to a detachable anode plate (103), the outer side of the detachable anode plate (103) is adhered to the conductive sponge (104), and the anode plate (103) is connected to an external power source via a wire.

5. The internally supported expansion type electroosmosis anode device according to claim 1, characterized in that: The arc-shaped steel plate (101) and the plastic plate (102) are provided with wire through holes.

6. The internally supported expandable electroosmosis anode device according to claim 2, characterized in that: The anode plate (103) is made of iron, aluminum, copper, stainless steel or graphite, and the anchor rod (201), support rod (202), arc-shaped steel plate (101), first wing plate (105), first hinge seat (107), second wing plate (203) and second hinge seat (204) are made of metal material, and the metal material is selected from carbon alloy steel material.

7. The internally supported expansion type electroosmosis anode device according to claim 2, characterized in that: The surfaces of the anchor rod (201), the support rod (202), the arc-shaped steel plate (101), the first wing plate (105), the first hinge seat (107), the second wing plate (203) and the second hinge seat (204) are all provided with an electroplating anti-corrosion layer or a spray-coated anti-rust paint layer.

8. The internally supported expandable electroosmosis anode device according to claim 1, characterized in that: After the electrode module (1) is connected to the push-pull assembly (2), a limiting ring (108) is provided on the outer side of one or both ends of the arc-shaped steel plate (101); A through hole for installing an auxiliary rod is radially provided at the top end of the anchor rod (201).

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