Pollutant barrier wall construction device

Abstract

The invention discloses a pollutant barrier wall construction device, and belongs to the technical field of barrier wall construction. The device comprises a supporting rack, a conveying pipe assembly and a feeding pipe assembly, wherein the conveying pipe assembly and the feeding pipe assembly are vertically mounted on the supporting rack; the conveying pipe assembly comprises a main conveying pipe and a material collecting pipe, the material collecting pipe is connected to the bottom of the supporting rack, the main conveying pipe is connected to the top of the material collecting pipe, and discharging ports are formed in the pipe wall of the bottom of the main conveying pipe at intervals; the feeding pipe assembly comprises feeding pipes, and the feeding pipes vertically and evenly surround the periphery of the main conveying pipe. The discharging port is alternately communicated with the feeding pipes through a directional conveying assembly, the feeding pipes are communicated with the material collecting pipe, the main conveying pipe is externally connected with a slurry conveying machine through a feeding guide pipe, and the material collecting pipe is externally connected with a blocking bag through a discharging guide pipe. And the discharging port is alternately communicated with the feeding pipes through the directional conveying assembly to discharge materials to the material collecting pipe, alternate circulating continuous grouting is conducted on the blocking bag, and the problem that in the prior art, during blocking wall construction grouting, construction is interrupted, and a cavity is likely to be formed in the blocking bag is solved.

Description

Technical Field

[0001] The invention relates to the technical field of barrier wall construction, and more specifically to a pollutant barrier wall construction device. Background Art

[0002] Sewage barrier walls can effectively prevent sewage from entering clean water bodies, prevent the spread of pollutants, and protect the water environment. Especially near pollution sources, such as factories, agricultural production areas, etc., sewage barrier walls can effectively control sewage leakage and avoid polluting groundwater and rivers.

[0003] The existing barrier wall materials and construction methods are formulated according to the actual site conditions. Among them, the method of grouting through the inside of the barrier bag is a relatively convenient construction method in the existing barrier wall construction. The barrier bag body is made of a double-layer anti-penetration material and is filled with a mixed slurry inside, so that the barrier bag expands into shape and then forms a barrier wall.

[0004] In the existing grouting construction method, the slurry needs to be mixed on site before grouting. During the grouting process, it is necessary to maintain the continuity of the grouting and reduce the amount of air entering the barrier bag to form a cavity. In the existing construction method, the slurry is usually stirred and allowed to stand before grouting. There is a waiting time in between. This interval causes the grouting to be discontinuous and easily leads to the formation of air cavities in the grouting pipe. As the subsequent grouting enters the barrier bag, a cavity is formed inside the barrier bag, affecting the barrier effect of the barrier wall, and thus the construction device needs to be technically optimized. Summary of the invention

[0005] 1. Technical problems to be solved by the invention:

[0006] In view of the problem that during the grouting of barrier walls in the prior art, construction interruptions easily lead to the formation of cavities inside the barrier bags, the present invention provides a pollutant barrier wall construction device, which is alternately connected with each feed pipe through a directional conveying component, thereby achieving the effect of alternating cycle continuous grouting.

[0007] 2. Technical solution:

[0008] In order to achieve the above object, the technical solution provided by the present invention is:

[0009] A pollutant barrier wall construction device includes a support frame, and also includes a conveying pipe assembly and a feed pipe assembly both vertically mounted on the support frame; the conveying pipe assembly includes a main conveying pipe and a collecting pipe, the collecting pipe is connected to the bottom of the support frame, the main conveying pipe is connected to the top of the collecting pipe, and discharge ports are arranged at intervals on the bottom wall of the main conveying pipe; the feed pipe assembly includes a feed pipe, each feed pipe is vertically and uniformly surrounded by the periphery of the main conveying pipe; the discharge port is alternately connected with each feed pipe through a directional conveying assembly, each feed pipe is connected with the collecting pipe, the main conveying pipe is connected to a slurry conveying machine through a feed conduit, and the collecting pipe is connected to a barrier bag through a discharge conduit. The discharge port is alternately connected with each feed pipe through a directional conveying assembly to discharge the material to the collecting pipe, thereby achieving the purpose of alternating and cyclic continuous grouting to the barrier bag.

[0010] A further technical solution is that there are three feed pipes, namely the first feed pipe, the second feed pipe and the third feed pipe; the three feed pipes work together alternately, and under the directional alternating conveying action of the directional conveying assembly:

[0011] When the first feed pipe is in a slurry filling state, i.e., an external feeding state, the slurry in the third feed pipe is used to fill the barrier bag, while the slurry in the second feed pipe is in a static exhaust state;

[0012] When the second feed pipe is in an external feeding state, the slurry inside the third feed pipe is in a static exhaust state, and at this time, the slurry inside the first feed pipe is grouting the barrier bag;

[0013] When the first feed pipe is in a slurry filling state, the slurry in the third feed pipe is filling the barrier bag, while the slurry in the second feed pipe is in a static exhaust state; the main conveying pipe feeds the three alternately in a cycle, thereby achieving the continuity of feeding, grouting and static exhaust, and achieving the purpose of preventing air from entering the interior of the barrier bag to form a cavity.

[0014] A further technical solution is that the conveying pipe assembly also includes a conveying ring which is sleeved on the outer side of the bottom of the main conveying pipe; the directional conveying assembly includes a conveying conduit which corresponds to and is connected to each feed pipe one by one, the input end of the conveying conduit is adapted to the position of the discharge port, a partition plate is vertically inserted inside the conveying conduit, and a first sliding rod is vertically fixed on both sides of the conveying conduit; both sides of the partition plate are sleeved on the first sliding rod, and the first sliding rod body with the sleeve point downward is sleeved with a first spring, so as to realize the alternating switching of each partition plate to the discharge port.

[0015] A further technical solution also includes a guide assembly for guiding the directional conveying assembly for directional alternating conveying; the guide assembly includes a guide collar connected to the outer side of the top of the main conveying pipe, a guide groove is provided at the bottom of the guide collar, a second annular limit groove is provided at the top of the guide collar, a first limit groove connected to the second limit groove is vertically provided downward; a third limit groove connected to the second limit groove is obliquely provided upward at the bottom end of the first limit groove. The guide assembly with a special structure can realize the alternating action on each partition board.

[0016] A further technical solution also includes a directional pushing component that is compatible with the guide component; the directional pushing component includes a movable plate, a stopper, a second spring and a second slide rod; a movable through hole is provided on the tube wall of the feed tube near the guide collar position, and one end of the stopper passes through the movable plate and slides up and down in the movable through hole, and the other end is embedded with a sliding ball, and the sliding ball is rollingly connected in the first limit groove, the second limit groove and the third limit groove; a slot that is compatible with the movable plate is provided on the outer tube wall of the feed tube, and a second slide rod is connected to the top of the feed tube at positions on both sides of the movable plate, and both sides of the movable plate are sleeved on the rod body of the second slide rod, and the rod body of the second slide rod with the sleeve point downward is sleeved with a second spring, and the directional pushing component and the guide component cooperate with each other to achieve alternating action on each partition plate while also achieving alternating reset effect.

[0017] A further technical solution is that a movable connecting rod is connected to the top of the partition board, a ball is embedded in the top of the movable connecting rod, the top of the ball is connected to the bottom end of the guide ring, and combined with the guide groove at the bottom end of the guide ring, an alternating lifting and resetting action is achieved on the partition board to realize automated operation.

[0018] A further technical solution is that the third limiting groove is an arc-shaped groove structure, and the groove depth of the third limiting groove gradually decreases from one end close to the first limiting groove to the end close to the second limiting groove, the groove depth of the third limiting groove close to one end of the second limiting groove is the same, the groove depth of the first limiting groove and the second limiting groove are the same, and the top view projection angle of both ends of the third limiting groove is 120°, and each limiting groove cooperates with the sliding ball to realize the automatic rotation of the guide sleeve, thereby driving the lifting and resetting of the movable connecting rod.

[0019] A further technical solution is that the inner wall of the feed pipe is slidably connected to a pressure plate, the outer edge of the pressure plate is evenly provided with sliders, and the inner wall of the feed pipe is provided with slide grooves adapted to the sliders; when the pressure plate rises to the position of the movable through hole, the block is pressed tightly against the surface of the pressure plate, and the pressure plate is lifted and lowered by filling and emptying the slurry, thereby driving the rolling of the sliding ball and starting the automatic rotation of the guide sleeve.

[0020] A further technical solution is that the bottom of the feed pipe is provided with a lower hopper that penetrates to the bottom of the supporting frame, the bottom output end of the lower hopper is provided with a material guide pipe that is interconnected with the bottom of the collecting pipe, and the middle of the material guide pipe is provided with an electric control valve to realize alternating opening and closing of each material guide pipe.

[0021] A further technical solution is that an electric switch is provided at a position on the outer wall of the feed pipe near the conveying conduit, and a pressure block corresponding to the electric switch is provided on the top of the partition plate; the electric switch is electrically connected to an adjacent group of electric control valves to achieve automatic alternating on and off.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0024] The pollutant barrier wall construction device of the present invention forms a main body of continuous grouting by arranging multiple feed pipes. When one group is grouting the barrier bag, the slurry inside another group is in a static waiting state, and the last group is in an external feeding state. Through the alternating circulation of the feed pipes, the continuity of feeding, grouting and static exhaust is achieved. At the same time, a pressure plate is arranged inside it, and grouting is performed from the bottom through a conveying duct, so that the air on the top will not enter the inside of the feed pipe, and the up and down displacement of the pressure plate drives the alternating cycle construction of the feed pipe to achieve the continuity of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the pollutant barrier wall construction device of a specific embodiment;

[0026] Figure 2 It is a schematic diagram of the connection state of the upper and lower components of the pollutant barrier wall construction device structure of a specific embodiment;

[0027] Figure 3 is an enlarged schematic diagram of the structure of the guide assembly of a specific embodiment;

[0028] Figure 4 It is an enlarged schematic diagram of the structure of the feed pipe of a specific embodiment;

[0029] Figure 5 is an enlarged cross-sectional view of the structure of the feed pipe of a specific embodiment;

[0030] Figure 6 yes Figure 5 A schematic diagram of the structure at A;

[0031] Figure 7 is an enlarged schematic diagram of the connection structure of the delivery pipe assembly of a specific embodiment;

[0032] Figure 8is an enlarged schematic diagram of the connection structure between the guide assembly and the delivery pipe assembly of a specific embodiment;

[0033] Fig. 9 is an enlarged cross-sectional view of the connection structure between the delivery pipe assembly and the directional delivery assembly of a specific embodiment;

[0034] Fig.10 is an enlarged cross-sectional view of the structure of the conveying ring of a specific embodiment;

[0035] Fig.11 It is an enlarged schematic diagram of the structure of the movable connecting rod of a specific embodiment.

[0036] In the figure: 10, lower hopper; 11, guide pipe; 12, electric control valve; 13, electric control switch; 14, movable connecting rod; 15, ball bearing; 16, discharge port; 17, pressure block; 18, connecting column; 19, slider; 20, slide groove; 21, pressure plate;

[0037] 100. Support frame;

[0038] 200, feed pipe assembly; 201, first feed pipe; 202, second feed pipe; 203, third feed pipe;

[0039] 300, conveying pipe assembly; 301, main conveying pipe; 302, conveying ring; 303, collecting pipe;

[0040] 400, guide assembly; 401, guide collar; 402, guide groove; 403, first limiting groove; 404, second limiting groove; 405, third limiting groove;

[0041] 500, feed conduit;

[0042] 600, discharge conduit;

[0043] 700, directional conveying assembly; 701, conveying conduit; 702, partition plate; 703, first slide bar; 704, first spring; 800, directional pushing assembly; 801, movable plate; 802, movable through hole; 803, stopper; 804, sliding ball; 805, second spring; 806, second slide bar; 807, slot. DETAILED DESCRIPTION

[0044] In order to further understand the content of the present invention, the invention is described in detail with reference to the accompanying drawings.

[0045] Example 1

[0046] The pollutant barrier wall construction device of this embodiment is as follows: Figure 1 , 2As shown, it includes a support frame 100, and also includes a conveying pipe assembly 300 and a feed pipe assembly 200 both vertically mounted on the support frame 100; the conveying pipe assembly 300 includes a main conveying pipe 301 and a collecting pipe 303, the collecting pipe 303 is connected to the bottom of the support frame 100, and the main conveying pipe 301 is connected to the top of the collecting pipe 303, as shown in FIG. Fig. 9 As shown, discharge ports 16 are arranged at intervals on the bottom wall of the main conveying pipe 301; the feed pipe assembly 200 includes feed pipes, each of which is vertically and evenly surrounded by the periphery of the main conveying pipe 301, with the main conveying pipe 301 being centered and each feed pipe being in a surrounding structure on its circumference, each discharge port 16 is alternately connected to each feed pipe through a directional conveying assembly 700, each feed pipe is connected to the collecting pipe 303 through a pipeline, the main conveying pipe 301 is externally connected to a slurry conveying machine through a feed conduit 500, and the collecting pipe 303 is externally connected to a barrier bag through a discharge conduit 600.

[0047] In the pollutant barrier wall construction device of this embodiment, each discharge port 16 is alternately connected with each feed pipe through a directional conveying assembly 700 to discharge the material to the collecting pipe 303, thereby achieving the purpose of alternating and cyclic continuous grouting to the barrier bag.

[0048] Example 2

[0049] The pollutant barrier wall construction device of this embodiment has the same basic structure as that of the first embodiment, except that: there are three feed pipes, namely, the first feed pipe 201, the second feed pipe 202 and the third feed pipe 203; under the directional alternating conveying action of the directional conveying assembly 700:

[0050] When the first feed pipe 201 is in a slurry filling state, i.e., an external feeding state, the slurry in the third feed pipe 203 is used to fill the barrier bag, while the slurry in the second feed pipe 202 is in a static exhaust state;

[0051] When the second feed pipe 202 is in an external feeding state, the slurry inside the third feed pipe 203 is in a static exhaust state, and at this time, the slurry inside the first feed pipe 201 is grouting the barrier bag;

[0052] When the first feed pipe 201 is in a slurry filling state, the slurry in the third feed pipe 203 is used to fill the barrier bag, while the slurry in the second feed pipe 202 is in a static exhaust state;

[0053] The pollutant barrier wall construction device of this embodiment feeds the three materials alternately and cyclically through the main conveying pipe 301. The first feed pipe 201, the second feed pipe 202 and the third feed pipe 203 form a main body of continuous grouting. When one group is grouting the barrier bag, the slurry inside the other group is in a static waiting state, and the last group is in an external feeding state. Through the alternating cycle of the three, the continuity of grouting and static exhaust is achieved. By grouting the bottom of the three, the air on the top will not enter the inside of the three. The alternating cycle construction of the three realizes the continuity of the structure.

[0054] Example 3

[0055] The pollutant barrier wall construction device of this embodiment has the same basic structure as that of embodiment 2, except that: Fig. 9 , 10 As shown, the conveying pipe assembly 300 also includes a conveying ring 302 which is sleeved on the outer side of the bottom of the main conveying pipe 301; the directional conveying assembly 700 includes a conveying conduit 701 which corresponds to and is connected to each feed pipe one by one, and the input end of the conveying conduit 701 is adapted to the position of the discharge port 16. The main conveying pipe 301 is located inside the conveying ring 302 and is provided with three groups of discharge ports 16 and connecting columns 18 at intervals, which are adapted to the three conveying conduits 701 and correspond to the corresponding three feed pipes.

[0056] like Fig. 9 , 10 As shown, a partition plate 702 is vertically inserted inside the conveying conduit 701, and a first slide bar 703 is vertically fixed on both sides of the conveying conduit 701; the two sides of the partition plate 702 are sleeved on the first slide bar 703, and the first slide bar 703 with the sleeve point downward is sleeved with a first spring 704, so as to realize the alternating opening and closing of each partition plate 702 to the discharge port 16.

[0057] It also includes a guide assembly 400 for guiding the directional conveying assembly 700 to directional and alternately convey; Figure 3 , 8 As shown, the guide assembly 400 includes a guide collar 401 connected to the outer side of the top of the main conveying pipe 301, a guide groove 402 is arranged at the bottom of the guide collar 401, a second annular limiting groove 404 is arranged at the top of the guide collar 401, and the second limiting groove 404 is vertically arranged with a first limiting groove 403 connected with it downward; the bottom end of the first limiting groove 403 is obliquely arranged with a third limiting groove 405 connected with the second limiting groove 404 upward. The guide assembly with a special structure can realize the alternating effect on each partition plate 702.

[0058] It also includes a directional push assembly 800 that is compatible with the guide assembly 400; Figure 4 , 5As shown in FIGS. 6 and 7 , the directional pushing assembly 800 includes a movable plate 801, a stopper 803, a second spring 805 and a second slide bar 806; a movable through hole 802 is provided on the tube wall of the feed tube near the guide collar 401, one end of the stopper 803 passes through the movable plate 801 and slides up and down in the movable through hole 802, and a sliding ball 804 is embedded at the other end, and the sliding ball 804 is rollingly connected in the first limiting groove 403, the second limiting groove 404 and the third limiting groove 405; A slot 807 that matches the movable plate 801 is provided on the outer tube wall of the feed tube, and a second slide bar 806 is connected to the top of the feed tube at positions on both sides of the movable plate 801. Both sides of the movable plate 801 are sleeved on the rod body of the second slide bar 806, and the rod body of the second slide bar 806 with the sleeve point downward is sleeved with a second spring 805. The directional pushing assembly 800 and the guide assembly 400 cooperate with each other to achieve alternating action on each partition plate 702 while also achieving the effect of alternating resetting.

[0059] like Figure 7 , 8 As shown in Figures 9, 10 and 11, a movable connecting rod 14 is connected to the top of the partition plate 702, a ball 15 is embedded in the top of the movable connecting rod 14, and the top of the ball 15 is connected to the bottom end of the guide ring 401. Combined with the guide groove 402 at the bottom end of the guide ring 401, an alternating lifting and resetting action is realized on the partition plate 702 to realize automatic operation.

[0060] The third limiting groove 405 is an arc-shaped groove structure, and the groove depth of the third limiting groove 405 gradually decreases from one end close to the first limiting groove 403 to one end close to the second limiting groove 404. The groove depth of the third limiting groove 405 close to the second limiting groove 404 is the same, and the groove depths of the first limiting groove 403 and the second limiting groove 404 are the same. The top view projection angle of both ends of the third limiting groove 405 is 120°, and each limiting groove cooperates with the sliding ball 804 to realize the automatic rotation of the guide ring 401, thereby driving the lifting and resetting of the movable connecting rod 14.

[0061] The inner walls of the three feed pipes are all connected with pressure plates 21 for sliding up and down connection, the outer edges of the pressure plates 21 are evenly provided with sliders 19, and the inner walls of the feed pipes are provided with slide grooves 20 adapted to the sliders 19; when the pressure plate 21 rises to the position of the movable through hole 802, the block 803 is pressed tightly against the surface of the pressure plate 21, and the pressure plate 21 is lifted and lowered by filling and emptying the slurry, thereby driving the sliding ball 804 to roll and starting the automatic rotation of the guide sleeve 401.

[0062] The bottom of each of the three feed pipes is provided with a lower hopper 10 that penetrates to the bottom of the support frame 100, and the bottom output end of the lower hopper 10 is provided with a guide pipe 11 that is interconnected with the bottom of the collecting pipe 303, and the middle of the guide pipe 11 is provided with an electric control valve 12 to realize the alternating opening and closing of each guide pipe 11.

[0063] An electric switch 13 is provided at a position on the outer wall of the three feed pipes near the conveying conduit 701, and a pressure block 17 corresponding to the electric switch 13 is provided on the top of the partition plate 702; the electric switch 13 is electrically connected to an adjacent group of electric valves 12. When the first feed pipe 201 is in a slurry filling state, the slurry in the third feed pipe 203 is in a released state, and the slurry in the second feed pipe 202 is in a static exhaust state, thereby realizing automatic alternating on and off.

[0064] The use process of the pollutant barrier wall construction device proposed in this embodiment is as follows. When the device is in use, it is interconnected with the feed duct 500 through an external pipeline, so that the slurry to be grouted is transported to the interior of the main delivery pipe 301, and is alternately transported to the interior of the first feed pipe 201, the second feed pipe 202, and the third feed pipe 203 through the main delivery pipe 301, and is further transported to the interior of the collecting pipe 303 through the lower hopper 10, and the barrier bag is grouted through the discharge duct 600 connected to the collecting pipe 303, thereby completing the grouting operation of the barrier wall.

[0065] When the device is in use, the slurry inside the main conveying pipe 301 is conveyed to the inside of the first feed pipe 201 through the conveying conduit 701 connected to the first feed pipe 201, and then the pressure of the conveyed slurry drives the pressure plate 21 to move upward. As the slurry inside the first feed pipe 201 continues to increase, the pressure plate 21 continues to move upward, and at this time, the inside of the second feed pipe 202 and the third feed pipe 203 are in an idle waiting state.

[0066] like Figure 5 , 6 As shown, as the pressure plate 21 continues to rise and squeezes the stopper 803 inside it upward, the rising power of the pressure plate 21 will drive the stopper 803 to move upward, and then drive the movable plate 801 to move upward as a whole. As the stopper 803 moves upward, the sliding ball 804 moves on the guide ring 401. At this time, the sliding ball 804 located on the first feed pipe 201 is located inside the third limiting groove 405, and moves upward from the bottom of the third limiting groove 405, thereby driving the guide ring 401 to rotate. At this time, the two groups of sliding balls 804 located on the second feed pipe 202 and the third feed pipe 203 are located inside the second limiting groove 404. When the sliding ball 804 located on the first feed pipe 201 moves to the top of the third limiting groove 405 and is connected to the inside of the second limiting groove 404, the guide ring 401 rotates 120° as a whole.

[0067] During this process, the guide groove 402 is driven to rotate by the rotation of the guide sleeve 401, and the rotation of the guide groove 402 causes the movable connecting rod 14 near the position of the first feed pipe 201 to be squeezed downward by the guide groove 402, and then the partition plate 702 is driven downward by the movable connecting rod 14. When the guide sleeve 401 rotates 120°, the conveying conduit 701 near the position of the first feed pipe 201 is cut off by the partition plate 702, and stops feeding into the first feed pipe 201.

[0068] As the guide collar 401 rotates 120°, the guide groove 402 moves to a position close to the third feed pipe 203. At this time, the first spring 704 near the third feed pipe 203 rebounds upward, driving the movable connecting rod 14 connected to the partition plate 702 to move upward to the inside of the guide groove 402, thereby opening the passage of the conveying conduit 701 near the third feed pipe 203, allowing the slurry inside the main conveying pipe 301 to enter the inside of the third feed pipe 203. At this time, the slurry inside the first feed pipe 201 is in a static exhaust state, and the inside of the third feed pipe 203 is in a feeding state.

[0069] As the partition plate 702 near the third feed pipe 203 moves upward, the pressure block 17 moves upward, thereby squeezing the electric control switch 13 outside the third feed pipe 203. The electric control switch 13 controls the opening of the electric control valve 12 connected to the guide pipe 11 at the bottom of the second feed pipe 202. At this time, the interior of the second feed pipe 202 is empty, and the barrier bag will not be filled with grout.

[0070] At the same time, as the guide ring 401 rotates 120°, the sliding ball 804 near the third feed pipe 203 slides down through the first limiting groove 403 to the bottom position of the third limiting groove 405, and because the bottom groove depth of the third limiting groove 405 is deeper than that of the first limiting groove 403, the group of sliding balls 804 is limited.

[0071] As the material is fed into the third feed pipe 203, the pressure plate 21 inside the third feed pipe 203 also moves upward continuously. When the pressure plate 21 squeezes the block 803 on the top, it also drives the sliding ball 804 to move upward to rotate the guide ring 401. As the guide ring 401 rotates, the movable connecting rod 14 near the third feed pipe 203 is squeezed by the bottom of the guide ring 401 and moves downward, thereby driving the partition plate 702 to close the group of conveying ducts 701.

[0072] When the guide sleeve 401 rotates 120° as a whole again, the movable link 14 near the second feed pipe 202 is acted upon by the rebound force of the first spring 704 at its bottom, so that the passage of the conveying conduit 701 near the second feed pipe 202 is opened, while the passage of the conveying conduit 701 near the third feed pipe 203 is closed, thereby feeding the second feed pipe 202.

[0073] At the same time, the partition plate 702 located near the second feed pipe 202 is displaced upward to drive the pressure block 17 to move upward to fit with the electric control switch 13, and then the electric control valve 12 connected to the bottom of the first feed pipe 201 is controlled by the electric control switch 13 to open the passage of the guide pipe 11, so that the slurry that has been left to stand in the first feed pipe 201 is transported to the collecting pipe 303, and then the grouting is carried out to the external barrier bag through the discharge duct 600. With the feeding of the second feed pipe 202 and the standing exhaust of the slurry in the third feed pipe 203, the construction device forms an intermittent circulating feeding function, which improves the construction efficiency, reduces the entry of air, and thus ensures the construction quality of the barrier wall.

[0074] In the pollutant barrier wall construction device of the present embodiment, three feed pipes form the main body of continuous grouting. When one group is grouting the barrier bag, the slurry inside the other group is in a static waiting state, and the last group is in an external feeding state. Through the alternating cycle of the three, the continuity of grouting and static exhaust is achieved. At the same time, a pressure plate 21 is arranged inside it. Grouting is performed from the bottom of the three through the conveying duct 701, so that the air on the top will not enter the inside of the three, and the up and down displacement of the pressure plate 21 drives the alternating cycle construction of the three to achieve structural continuity. While grouting is continuously carried out without intervals, as the subsequent grouting continues to enter the interior of the barrier bag, no air cavity will be formed in the grouting pipeline after static exhaust, thereby improving the barrier effect of the barrier wall.

[0075] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure and manufacturing steps are not limited thereto. Therefore, if a person skilled in the art is inspired by it and, without departing from the purpose of the invention, designs a structure and an implementation method similar to the technical solution without creativity, they shall all fall within the protection scope of the present invention.

Claims

1. A pollutant barrier wall construction device, comprising a support frame (100), characterized in that: It also includes a conveying pipe assembly (300) and a feeding pipe assembly (200) both of which are vertically mounted on the supporting frame (100); The conveying pipe assembly (300) comprises a main conveying pipe (301) and a collecting pipe (303), wherein the collecting pipe (303) is connected to the bottom of the supporting frame (100), and the main conveying pipe (301) is connected to the top of the collecting pipe (303), and a discharge port (16) is arranged at intervals on the bottom wall of the main conveying pipe (301); The feed pipe assembly (200) comprises feed pipes, each of which is evenly and vertically surrounded by the periphery of the main conveying pipe (301); The discharge port (16) is alternately connected to each feed pipe through a directional conveying component (700), each feed pipe is connected to a collecting pipe (303), the main conveying pipe (301) is connected to an external slurry conveying machine through a feed conduit (500), and the collecting pipe (303) is connected to an external barrier bag through a discharge conduit (600).

2. The pollutant barrier wall construction device according to claim 1, characterized in that: There are three feed pipes, namely the first feed pipe (201), the second feed pipe (202) and the third feed pipe (203); under the directional alternating conveying action of the directional conveying component (700), when the interior of the first feed pipe (201) is in a slurry filling state, the slurry inside the third feed pipe (203) is used to grout the barrier bag, while the slurry inside the second feed pipe (202) is in a static exhaust state.

3. The pollutant barrier wall construction device according to claim 2, characterized in that: The delivery pipe assembly (300) further comprises a delivery ring (302) sleeved on the outer side of the bottom of the main delivery pipe (301); The directional conveying component (700) includes a conveying conduit (701) corresponding to and connected to each feed pipe (203) one by one, the input end of the conveying conduit (701) is adapted to the position of the discharge port (16), a partition plate (702) is vertically inserted inside the conveying conduit (701), and first sliding rods (703) are vertically fixed on both sides of the conveying conduit (701); both sides of the partition plate (702) are sleeved on the first sliding rod (703), and the first sliding rod (703) with the sleeve point downward is sleeved with a first spring (704).

4. The pollutant barrier wall construction device according to claim 3 is characterized in that: It also includes a guide assembly (400) for guiding the directional conveying assembly (700) to directional and alternatingly convey; The guide assembly (400) comprises a guide collar (401) connected to the outer side of the top of the main conveying pipe (301); a guide groove (402) is arranged at the bottom of the guide collar (401); a second annular limiting groove (404) is arranged at the top of the guide collar (401); a first limiting groove (403) connected to the second limiting groove (404) is arranged vertically downward; and a third limiting groove (405) connected to the second limiting groove (404) is arranged obliquely upward at the bottom end of the first limiting groove (403).

5. The pollutant barrier wall construction device according to claim 4, characterized in that: It also includes a directional pushing component (800) that is mutually compatible with the guide component (400); The directional pushing assembly (800) comprises a movable plate (801), a stopper (803), a second spring (805) and a second slide bar (806); a movable through hole (802) is provided on the tube wall of the feed tube near the guide collar (401); one end of the stopper (803) passes through the movable plate (801) and slides up and down in the movable through hole (802); the other end of the stopper (803) is embedded with a sliding ball (804); the sliding ball (804) is rollingly connected in the first limiting groove (403), the second limiting groove (404) and the third limiting groove (405); A slot (807) adapted to the movable plate (801) is provided on the outer tube wall of the feed tube, and a second slide bar (806) is connected to the top of the feed tube at positions on both sides of the movable plate (801), and both sides of the movable plate (801) are sleeved on the rod body of the second slide bar (806), and the rod body of the second slide bar (806) with the sleeve point downward is sleeved with a second spring (805).

6. The pollutant barrier wall construction device according to claim 5, characterized in that: The top of the partition plate (702) is connected to a movable connecting rod (14), the top of the movable connecting rod (14) is embedded with a ball (15), and the top of the ball (15) is connected to the bottom end of the guide ring (401).

7. The pollutant barrier wall construction device according to claim 6, characterized in that: The third limiting groove (405) is an arc-shaped groove structure, and the groove depth of the third limiting groove (405) gradually decreases from the end close to the first limiting groove (403) to the end close to the second limiting groove (404), the groove depth of the third limiting groove (405) close to the second limiting groove (404) is the same, the groove depth of the first limiting groove (403) and the second limiting groove (404) are the same, and the top view projection angle of the two ends of the third limiting groove (405) is 120°.

8. The pollutant barrier wall construction device according to claim 7, characterized in that: The inner wall of the feed pipe is slidably connected to a pressure plate (21) up and down, the outer edge of the pressure plate (21) is evenly provided with sliders (19), and the inner wall of the feed pipe is provided with a slide groove (20) adapted to the slider (19); when the pressure plate (21) rises to the position of the movable through hole (802), the stopper (803) is pressed tightly against the surface of the pressure plate (21).

9. The pollutant barrier wall construction device according to claim 8, characterized in that: The bottom of the feed pipe is provided with a lower hopper (10) extending through the bottom of the support frame (100), the bottom output end of the lower hopper (10) is provided with a material guide pipe (11) interconnected with the bottom of the collecting pipe (303), and the middle of the material guide pipe (11) is provided with an electric control valve (12).

10. The pollutant barrier wall construction device according to claim 8, characterized in that: An electric switch (13) is provided at a position near the conveying conduit (701) on the outer wall of the feed pipe, and a pressure block (17) corresponding to the electric switch (13) is provided on the top of the partition plate (702); the electric switch (13) is electrically connected to an adjacent group of electric control valves (12).

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