Rotary slurry mixing device for underground diaphragm wall

Abstract

The utility model discloses a rotary slurry mixing device for an underground diaphragm wall, which comprises a slurry mixing barrel, the inner wall of the bottom of the slurry mixing barrel is of a conical structure, the bottom of the slurry mixing barrel is rectangular and fixedly connected with four supporting legs, the bottom of the slurry mixing barrel is fixedly provided with a slurry pump, and a feed port of the slurry pump is communicated with the inside of the slurry mixing barrel. A connecting pipe is fixedly communicated with a discharging port of the slurry pump, a feeding pipe is fixedly communicated with the left side of the top of the slurry stirring barrel, a concentric-square-shaped plate is fixedly embedded in the top of the slurry stirring barrel, and stirring shafts are rotationally embedded in the two sides of the bottom of the concentric-square-shaped plate in a sealed mode. By arranging a series of structures, high-efficiency rotary hedging slurry stirring work can be conveniently carried out on slurry in a two-side synchronous reciprocating rotary stirring mode, the vortex phenomenon generated by single-direction rotation can be effectively avoided, the slurry stirring effect and efficiency are improved, and the slurry stirring efficiency is improved. And the interiors of the stirring piece and the slurry stirring barrel can be integrally, conveniently, rapidly and automatically cleaned after use, and the self-cleaning performance after use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry mixing equipment, in particular to a rotary slurry mixing device for underground continuous walls. Background Art

[0002] An underground continuous wall is a foundation project that uses a trenching machine on the ground to dig a long and narrow deep trench along the peripheral axis of the deep excavation project under the condition of mud wall protection. After the trench is cleaned, a steel cage is suspended in the trench, and then underwater concrete is poured using the conduit method to form a unit trench section. This process is carried out section by section to build a continuous reinforced concrete wall underground as a water-blocking, anti-seepage, load-bearing and water-retaining structure. Mud is an important material used in the excavation process of underground continuous walls. The mud is stirred by a slurry mixing device. Bentonite and water are added to the slurry mixing barrel. The bentonite and water are fully stirred to form mud through the high-speed rotation of the power machine. The evenly stirred mud is transported to the mud pool through the slurry pump's slurry pipe for 24 hours of expansion and fermentation. The mud is then used in the construction of underground continuous walls.

[0003] The traditional mud mixing device is a round structure with a smooth surface. When the mixing pump power machine rotates at high speed, it is easy to rotate bentonite and water together to form a vortex. The highly viscous bentonite is easy to form a granular material with a wet surface and dry inside when it meets water. In the vortex state, this granular material is not easy to dissolve in water, resulting in a greatly extended mixing time and limited mud quality. After searching, the publication number CN220113622U discloses a rotary mixing device for underground continuous wall, including a mixing bucket, a mixing pump installed inside the mixing bucket, and a plurality of water blocking plates arranged on the inner wall of the mixing bucket. The water blocking plates are arranged in an inclined shape, and the inclination direction of the water blocking plates is opposite to the steering direction of the mixing pump power machine. When the slurry pump power machine rotates to generate a vortex, the water flow impacts the water blocking plate to generate an opposite force, so that the structure of the bentonite granular material that is not easily soluble in water is destroyed, and it is easier to dissolve in water, thereby improving the slurry making efficiency. At the same time, the mud has sufficient viscosity and fluidity to maintain the stability of the underground continuous wall groove section, which is conducive to construction.

[0004] The above technology discloses a rotary slurry mixing device for underground continuous walls. By arranging a slurry mixing pump in a slurry mixing barrel and arranging a water blocking plate on the inner wall of the slurry mixing barrel, the slurry mixing device can form an impact blocking effect when stirring the slurry, reduce the generation of vortexes, and improve the slurry mixing effect. However, there are the following deficiencies during use: 1. Although a water blocking plate is provided to damp the slurry, the slurry cannot be efficiently reciprocated and rotated to mix the slurry. Although the vortex phenomenon can be reduced, it still cannot effectively and directly avoid the vortex phenomenon, and the slurry mixing effect is not ideal; 2. After the slurry mixing is completed, the stirring element and the inside of the slurry mixing barrel cannot be cleaned quickly and automatically as a whole, and a large amount of slurry is likely to remain inside. The solidification of the residual slurry will affect the next use, and the self-cleaning property after use is not ideal. In view of this, the present application proposes a rotary slurry mixing device for underground continuous walls. Utility Model Content

[0005] The utility model aims to provide a rotary slurry mixing device for underground continuous walls to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary slurry mixing device for underground continuous wall, comprising a slurry mixing barrel, the bottom inner wall of the slurry mixing barrel is set as a conical structure, the bottom of the slurry mixing barrel is rectangular and fixedly connected with four legs, a slurry pump with a feed inlet connected to the inside thereof is fixedly installed at the bottom of the slurry mixing barrel, a connecting pipe is fixedly connected to the discharge port of the slurry pump, a feeding pipe is fixedly connected to the left side of the top of the slurry mixing barrel, and the feeding pipe is used to add slurry raw materials for underground continuous wall into the slurry mixing barrel;

[0007] A circular plate is fixedly mounted on the top of the mixing barrel, and stirring shafts are sealed and rotatably mounted on both sides of the bottom of the circular plate, and a plurality of stirring blades are fixedly connected to the outside of the stirring shaft, and a rotating shaft is rotatably connected between the top inner wall and the bottom inner wall of the circular plate, and a reciprocating rotating drive component fixedly mounted on the rotating shaft is fixedly mounted between the inner walls of both sides of the circular plate, and a reciprocating electric push rod with an extended end fixedly connected to the reciprocating rotating drive component is fixedly mounted on the right inner wall of the circular plate, and the top ends of the two stirring shafts are fixedly connected to the same joint rotating component, which is fixedly mounted on the rotating shaft, and the reciprocating rotating drive component is used to drive the rotating shaft to reciprocate and rotate when the reciprocating electric push rod is started, and the joint rotating component is used to drive the two stirring shafts to reciprocate synchronously when the rotating shaft reciprocates, and the two stirring shafts drive the plurality of stirring blades to reciprocate to perform reciprocating rotating mixing work;

[0008] The bottom of the circular plate is fixedly connected to a scattered spray flushing assembly located in the mixing barrel, and the scattered spray flushing assembly is sealed and rotatably sleeved on two stirring shafts. A high-pressure water pump whose water outlet is connected to the scattered spray flushing assembly is fixedly installed on the right side of the mixing barrel. The right side of the mixing barrel is fixedly connected to a water tank, and the water inlet of the high-pressure water pump is connected to and fixed with a water suction pipe, and the bottom end of the water suction pipe extends into the water tank. The scattered spray flushing assembly is used for scatter spray flushing of the stirring element and the inside of the mixing barrel when the high-pressure water pump is turned on.

[0009] Preferably, the reciprocating rotary drive assembly includes a square guide rod fixedly connected between the inner walls on both sides of the circular plate, a moving seat is slidably sleeved on the square guide rod, a rack is embedded and fixed on the front side of the moving seat, a first gear is meshed on the front side of the rack, the first gear is fixedly sleeved on the rotating shaft, and the top of the moving seat is fixedly installed on the protruding end of the reciprocating electric push rod.

[0010] Preferably, the coupling assembly includes a second gear fixedly mounted on the rotating shaft, third gears are meshed on both sides of the second gear, and the bottoms of the two third gears are respectively fixedly connected to the tops of the corresponding stirring shafts.

[0011] Preferably, the scattered spray flushing assembly includes a circular box fixedly connected to the bottom of the circular plate, the top of the circular box is set to be an opening, the circular box sealing and rotating sleeve is arranged on two stirring shafts, the outside and the bottom of the circular box are connected and fixed with multiple spray heads, the multiple spray heads located on the outside are all arranged to be tilted downward, and a connecting pipe is connected and fixed to the top of the right inner wall of the circular box, and the right end of the connecting pipe is connected and fixed to the water outlet of the high-pressure water pump.

[0012] Preferably, a connecting seat is fixedly connected to the top of the movable seat, and the right side of the connecting seat is fixedly connected to the extended end of the reciprocating electric push rod.

[0013] Preferably, the multiple stirring blades on the two stirring shafts are arranged crosswise and staggered.

[0014] Preferably, two circular through holes are provided on the inner wall of the bottom of the circular plate, and a first sealed bearing is fixedly sleeved inside the circular through holes, and the inner ring of the first sealed bearing is fixedly sleeved with the outer side of the corresponding stirring shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This rotary slurry mixing device for underground continuous wall can synchronously reciprocate and stir the slurry on both sides through the cooperation of the slurry mixing barrel, circular plate, rotating shaft, two stirring shafts, multiple stirring blades, reciprocating electric push rod, reciprocating rotary drive assembly and joint rotary assembly, so as to achieve the effect of high-efficiency rotary counter-mixing of the slurry, effectively avoid the vortex phenomenon caused by single-direction rotation, and improve the slurry mixing effect and efficiency;

[0017] 2. This rotary slurry mixing device for underground continuous walls can automatically and quickly clean the stirring parts and the inside of the slurry mixing barrel after use through the cooperation of the water tank, high-pressure water pump and spray flushing components, thereby reducing the phenomenon of internal slurry residue affecting the next use and improving the self-cleaning property after use.

[0018] The utility model is provided with a series of structures, which is convenient for efficient rotary counter-mixing of the slurry by synchronous reciprocating rotation and stirring on both sides, can effectively avoid vortex phenomenon caused by rotation in one direction, improve the mixing effect and efficiency, and is convenient for quick and automatic cleaning of the stirring element and the inside of the mixing barrel after use, thereby improving the self-cleaning property after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a rotary slurry mixing device for underground continuous wall proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the main three-dimensional structure of a rotary slurry mixing device for underground continuous wall proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the main cross-sectional structure of a rotary slurry mixing device for underground continuous wall proposed by the utility model;

[0022] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure of part A in the figure.

[0023] In the figure: 1. mixing barrel; 101. slurry pump; 2. circular plate; 3. stirring shaft; 4. stirring blade; 5. third gear; 6. second gear; 7. rotating shaft; 8. first gear; 9. square guide rod; 10. moving seat; 11. rack; 12. reciprocating electric push rod; 13. round box; 14. spray head; 15. connecting pipe; 16. high-pressure water pump; 17. water tank. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 4As shown, a rotary slurry mixing device for underground continuous wall proposed in this embodiment includes a slurry mixing barrel 1, the bottom inner wall of the slurry mixing barrel 1 is set as a conical structure, the bottom of the slurry mixing barrel 1 is rectangular and fixedly connected with four legs, a slurry pump 101 whose feed port is connected with the inside is fixedly installed at the bottom of the slurry mixing barrel 1, a connecting pipe is fixedly connected to the discharge port of the slurry pump 101, and a feeding pipe is fixedly connected to the left side of the top of the slurry mixing barrel 1, and the feeding pipe is used to add slurry raw materials for underground continuous wall into the slurry mixing barrel 1;

[0026] A circular plate 2 is fixedly mounted on the top of the mixing barrel 1, and a stirring shaft 3 is sealed and rotatably mounted on both sides of the bottom of the circular plate 2, wherein two circular through-holes are provided on the inner wall of the bottom of the circular plate 2, and a first sealed bearing is fixedly sleeved in the circular through-holes, and the inner ring of the first sealed bearing is fixedly sleeved with the outer side of the corresponding stirring shaft 3, so as to achieve the effect of sealing and rotating installation of the stirring shaft 3, and a plurality of stirring blades 4 are fixedly connected to the outer side of the stirring shaft 3, and the plurality of stirring blades 4 on the two stirring shafts 3 are staggered and arranged, and a rotating shaft 7 is rotatably connected between the top inner wall and the bottom inner wall of the circular plate 2, wherein the first bearing is fixedly connected to the top inner wall and the bottom inner wall of the circular plate 2, and the inner ring of the first bearing is fixedly sleeved with the rotating shaft The outer fixed sleeve of 7 plays the effect of rotating the rotating shaft 7. A reciprocating rotary drive assembly fixedly sleeved on the rotating shaft 7 is fixedly installed between the inner walls of both sides of the circular plate 2. A reciprocating electric push rod 12 with an extended end fixedly connected to the reciprocating rotary drive assembly is fixedly installed on the right inner wall of the circular plate 2. The top ends of the two stirring shafts 3 are fixedly connected to the same joint rotation assembly, which is fixedly sleeved on the rotating shaft 7. The reciprocating rotary drive assembly is used to drive the rotating shaft 7 to reciprocate and rotate when the reciprocating electric push rod 12 is started. The joint rotation assembly is used to drive the two stirring shafts 3 to reciprocate synchronously when the rotating shaft 7 reciprocates. The two stirring shafts 3 drive multiple stirring blades 4 to reciprocate to perform reciprocating rotary mixing work;

[0027] The bottom of the circular plate 2 is fixedly connected to a scattered spray flushing assembly located in the mixing barrel 1, and the scattered spray flushing assembly is sealed and rotatably sleeved on the two stirring shafts 3. A high-pressure water pump 16 whose water outlet is connected to the scattered spray flushing assembly is fixedly installed on the right side of the mixing barrel 1. The right side of the mixing barrel 1 is fixedly connected to a water tank 17, and the water inlet of the high-pressure water pump 16 is connected to a water suction pipe, and the bottom end of the water suction pipe extends into the water tank 17. The scattered spray flushing assembly is used for scatter spray flushing of the stirring element and the inside of the mixing barrel 1 when the high-pressure water pump 16 is turned on.

[0028] Specifically, the reciprocating rotary drive assembly includes a square guide rod 9 fixedly connected between the inner walls of both sides of the circular plate 2, a moving seat 10 is slidably sleeved on the square guide rod 9, wherein the right side of the moving seat 10 is provided with a square guide hole that is in sliding contact with the outer side of the square guide rod 9, which plays the effect of guiding the lateral sliding of the moving seat 10, and a rack 11 is embedded and fixed on the front side of the moving seat 10, wherein the front side of the moving seat 10 is provided with an embedding groove that is fixedly connected to the outer side of the rack 11, and the front side of the rack 11 is meshed with a first gear 8, and the first gear 8 is fixedly sleeved on the rotating shaft 7, and the top of the moving seat 10 is connected to the reciprocating electric push rod The protruding end of 12 is fixedly installed, wherein the top of the moving seat 10 is fixedly connected with a connecting seat, the right side of the connecting seat is fixedly connected to the protruding end of the reciprocating electric push rod 12, and the moving seat 10 is fixedly installed with the protruding end of the reciprocating electric push rod 12 through the connecting seat; the square guide rod 9, the moving seat 10, the rack 11 and the first gear 8 are cooperated, and the reciprocating electric push rod 12 is used to drive the moving seat 10 to move back and forth left and right, the moving seat 10 drives the rack 11 to move back and forth left and right, the rack 11 drives the first gear 8 to rotate back and forth, and the first gear 8 is used to realize the reciprocating and reverse rotation of the driving shaft 7.

[0029] Furthermore, the coupling assembly includes a second gear 6 fixedly mounted on the rotating shaft 7, and third gears 5 are meshed on both sides of the second gear 6. The bottoms of the two third gears 5 are respectively fixedly connected to the tops of the corresponding stirring shafts 3; the second gear 6 and the third gear 5 are arranged to cooperate with each other, and the reciprocating and counter-rotating rotation of the rotating shaft 7 drives the second gear 6 to rotate reciprocatingly and counter-rotatingly, and the second gear 6 drives the two third gears 5 to rotate reciprocatingly and counter-rotatingly, and the two third gears 5 are used to drive the two stirring shafts 3 to rotate synchronously and reciprocatingly.

[0030] Furthermore, the scattered spray flushing assembly includes a circular box 13 fixedly connected to the bottom of the circular plate 2, the top of the circular box 13 is set to be open, and the circular box 13 is sealed and rotatably sleeved on the two stirring shafts 3, wherein two circular holes are opened on the inner wall of the bottom of the circular box 13, and a second sealed bearing is fixedly sleeved in the circular hole, and the inner ring of the second sealed bearing is fixedly sleeved with the outer side of the corresponding stirring shaft 3, which plays the effect of sealing and rotating the stirring shaft 3, and the outer side and the bottom of the circular box 13 are connected and fixed with a plurality of spray heads 14 The multiple spray heads 14 located on the outside are all tilted downward, and a connecting pipe 15 is connected and fixed to the top of the right inner wall of the circular box 13. The right end of the connecting pipe 15 is connected and fixed to the water outlet of the high-pressure water pump 16; the circular box 13, the spray heads 14 and the connecting pipe 15 are arranged to cooperate with each other. After use, the high-pressure water pump 16 is used to draw water from the water tank 17 and pump it into the circular box 13 through the connecting pipe 15. The water is dispersedly sprayed through the multiple spray heads 14, and the dispersedly sprayed water is used to rinse the stirring element and the inside of the mixing barrel 1.

[0031] The method of using the present embodiment is as follows: when the rotary slurry mixing device for underground continuous wall is used, firstly, the slurry raw material is added into the slurry mixing barrel 1 through the feeding pipe, and the reciprocating electric push rod 12 is started to drive the moving seat 10 to slide back and forth on the square guide rod 9, and the moving seat 10 drives the rack 11 to move back and forth, and the rack 11 drives the first gear 8 to rotate back and forth, and the first gear 8 realizes the reciprocating and reverse rotation of the driving shaft 7, and the shaft 7 drives the second gear 6 to rotate back and forth, and the second gear 6 drives the two third gears 5 to rotate back and forth, and the two third gears 5 drive back and forth. The gear 5 drives the two stirring shafts 3 to rotate synchronously back and forth, and the two stirring shafts 3 drive the multiple stirring blades 4 to rotate back and forth to perform reciprocating rotary mixing. The multiple stirring blades 4 are divided into two sides and rotate back and forth to perform reciprocating rotary mixing. The reciprocating counter-attack effect of the slurry can be formed during the reciprocating rotary mixing. This can directly and effectively avoid the vortex phenomenon caused by rotation in a single direction, achieve the effect of efficient reciprocating rotary counter-attack mixing of the slurry, and improve the mixing effect and efficiency; after mixing, the slurry is extracted by the slurry pump 101 and discharged to the corresponding position;

[0032] After use, turn on the high-pressure water pump 16 to draw water from the water tank 17 through the suction pipe, and pump it into the circular box 13 through the connecting pipe 15. The water is sprayed out through multiple spray heads 14. The sprayed water is used to rinse the rotating stirring element and the inner side of the mixing barrel 1. The slurry pump 101 is used to pump out the cleaning water, thereby achieving the effect of convenient, fast and automatic cleaning of the stirring element and the inside of the mixing barrel 1 after use, reducing the phenomenon of internal slurry residue affecting the next use and improving the self-cleaning property after use.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rotary slurry mixing device for underground continuous wall, comprising a slurry mixing barrel (1), characterized in that: The inner wall of the bottom of the slurry mixing barrel (1) is arranged as a conical structure. The bottom of the slurry mixing barrel (1) is rectangular and fixedly connected to four legs. A slurry pump (101) whose feed inlet is connected to the inside of the slurry mixing barrel (1) is fixedly installed at the bottom of the slurry mixing barrel (1). A connecting pipe is fixedly connected to the discharge port of the slurry pump (101). A feeding pipe is fixedly connected to the left side of the top of the slurry mixing barrel (1). A circular plate (2) is fixedly mounted on the top of the mixing barrel (1), and a stirring shaft (3) is sealed and rotatably mounted on both sides of the bottom of the circular plate (2). A plurality of stirring blades (4) are fixedly connected to the outer side of the stirring shaft (3). A rotating shaft (7) is rotatably connected between the top inner wall and the bottom inner wall of the circular plate (2). A reciprocating rotary drive component fixedly sleeved on the rotating shaft (7) is fixedly mounted between the inner walls on both sides of the circular plate (2). A reciprocating electric push rod (12) whose protruding end is fixedly connected to the reciprocating rotary drive component is fixedly mounted on the right inner wall of the circular plate (2). The top ends of the two stirring shafts (3) are fixedly connected to the same joint rotating component, which is fixedly sleeved on the rotating shaft (7). The bottom of the circular plate (2) is fixedly connected to a scattered spray flushing assembly located in the mixing barrel (1), and the scattered spray flushing assembly is sealed and rotatably sleeved on two stirring shafts (3). A high-pressure water pump (16) whose water outlet is connected and fixedly communicated with the scattered spray flushing assembly is fixedly installed on the right side of the mixing barrel (1). The right side of the mixing barrel (1) is fixedly connected to a water tank (17), and the water inlet of the high-pressure water pump (16) is connected and fixedly communicated with a water suction pipe, and the bottom end of the water suction pipe extends into the water tank (17).

2. A rotary slurry mixing device for underground continuous wall according to claim 1, characterized in that: The reciprocating rotary drive assembly comprises a square guide rod (9) fixedly connected between the inner walls of both sides of the circular plate (2); a moving seat (10) is slidably sleeved on the square guide rod (9); a rack (11) is embedded and fixed on the front side of the moving seat (10); a first gear (8) is meshed on the front side of the rack (11); the first gear (8) is fixedly sleeved on the rotating shaft (7); and the top of the moving seat (10) is fixedly installed with the protruding end of the reciprocating electric push rod (12).

3. A rotary slurry mixing device for underground continuous wall according to claim 2, characterized in that: The rotating assembly comprises a second gear (6) fixedly sleeved on a rotating shaft (7), third gears (5) being meshed on both sides of the second gear (6), and the bottoms of the two third gears (5) are respectively fixedly connected to the tops of the corresponding stirring shafts (3).

4. A rotary slurry mixing device for underground continuous wall according to claim 3, characterized in that: The scattered spray flushing assembly comprises a circular box (13) fixedly connected to the bottom of the circular plate (2), the top of the circular box (13) is arranged to be open, the circular box (13) is sealed and rotatably sleeved on the two stirring shafts (3), the outer side and the bottom of the circular box (13) are connected and fixed with a plurality of spray heads (14), the plurality of spray heads (14) located on the outer side are all arranged to be tilted downward, the top of the right inner wall of the circular box (13) is connected and fixed with a connecting pipe (15), and the right end of the connecting pipe (15) is connected and fixed to the water outlet of the high-pressure water pump (16).

5. The rotary slurry mixing device for underground continuous wall according to claim 2, characterized in that: The top of the movable seat (10) is fixedly connected to a connecting seat, and the right side of the connecting seat is fixedly connected to the extended end of the reciprocating electric push rod (12).

6. The rotary slurry mixing device for underground continuous wall according to claim 1, characterized in that: The multiple stirring blades (4) on the two stirring shafts (3) are arranged in a staggered manner.

7. The rotary slurry mixing device for underground continuous wall according to claim 1, characterized in that: Two circular through holes are provided on the inner wall of the bottom of the circular plate (2), and a first sealing bearing is fixedly sleeved inside the circular through holes. The inner ring of the first sealing bearing is fixedly sleeved on the outer side of the corresponding stirring shaft (3).

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