A slurry mixing and conveying device for pile foundation rotary drilling and wall protection

Abstract

The present invention provides a pile foundation rotary drilling hole wall protection mud stirring and conveying device, comprising a base made of channel steel, a stirring barrel fixed on the base, a water inlet pipe and a first discharge pipe on the outer wall of the stirring barrel, a mounting frame detachably mounted in the stirring barrel, a plurality of fixed plates detachably mounted on the mounting frame, a through hole opened in the middle of each fixed plate, a first motor mounted on the upper surface of each fixed plate, a stirring paddle mounted on the rotating shaft of each first motor; a feed hopper is also fixed on the mounting frame, a mesh plate is laid on the top of the stirring barrel on the mounting frame, and a control electric box is fixed on the outer wall of the stirring barrel. The present invention has the advantages of more uniform and sufficient mud mixing, better wall protection effect, etc.

Description

Technical Field

[0001] The invention belongs to the technical field of pile foundation rotary drilling hole construction equipment and relates to a mud material stirring and conveying device for reinforcing the inner wall of a pile foundation rotary drilling hole. Background Art

[0002] During the construction of pile foundation, it is often necessary to drill holes on the ground for the construction of sinking pile foundation. However, in unstable strata where the pile foundation is located, such as deep buried depth, thick sand layer, saturated water silty clay, etc., the soil around the hole wall is extremely unstable. When the rotary drilling rig is drilling, the hole wall will be affected by the combined force of soil pressure and water pressure, resulting in deformation around the hole wall and large-scale sand gushing and hole collapse.

[0003] Therefore, for the bridge pile foundation in this type of easily collapsed strata, it is necessary to use a rotary drilling rig to drill holes, and at the same time, the inner wall of the rotary drilling hole should be reinforced with mud. Usually, the wall protection mud is made by mixing yellow clay, bentonite, cellulose, soda ash, etc. with water. In order to cooperate with the construction of pile foundation, our company has specially developed a device for mixing and conveying the mud material for reinforcing the inner wall of the rotary drilling hole of the pile foundation, so as to improve the efficiency of pile foundation construction and the quality of the pile foundation arm. Summary of the invention

[0004] The purpose of the present invention is to provide a mud stirring and conveying device for pile foundation rotary drilling hole wall protection in view of the above-mentioned problems existing in the prior art. The technical problem to be solved by the present invention is to design a device for stirring and conveying mud for reinforcing the inner wall of the pile foundation rotary drilling hole, so as to improve the efficiency of pile foundation construction and the quality of the pile foundation guard arm.

[0005] The objectives of the present invention can be achieved through the following technical solutions: a pile foundation rotary drilling hole wall protection mud stirring and conveying device, characterized in that the device comprises a base made of channel steel, a mixing barrel is fixed on the base, a water inlet pipe and a first discharge pipe are provided on the outer wall of the mixing barrel, a mounting frame is detachably installed in the mixing barrel, a plurality of fixed plates are detachably installed on the mounting frame, a through hole is opened in the middle of each of the fixed plates, a first motor is installed on the upper surface of each of the fixed plates, and a stirring paddle is installed on the rotating shaft of each of the first motors; a feeding hopper is also fixed on the mounting frame, a mesh plate is laid on the top of the mixing barrel on the mounting frame, and a control electric box is fixed on the outer wall of the mixing barrel.

[0006] Preferably, the device also includes a gantry crane for loading materials, and the gantry crane spans above the mixing barrel; the gantry crane includes two pillars and a cross bridge, and both ends of the cross bridge are detachably connected to the top of the pillar; each of the pillars includes a main rod and two reinforcing rods, and a cross plate is provided between each of the reinforcing rods and the main rod for connection; an upper connecting plate and a lower connecting plate are respectively fixed to the middle and lower parts of one of the pillars; a connecting frame is fixed to one side of the base, the lower connecting plate is detachably connected to the connecting frame, and the upper connecting plate is fixedly connected to the top of the mixing barrel; an electrical port connector is provided on the main rod connected to the mixing barrel, and the electrical port connector is located below one of the cross plates.

[0007] Preferably, a second motor and a water pump are detachably mounted on the base, and a pulley is provided between the second motor and the water pump to connect them; a second discharge pipe is provided at the bottom of the mixing barrel, and the second discharge pipe is connected to the water inlet end of the water pump through a flange, and the discharge end of the water pump is connected to a three-way pipe through a flange, one end of the three-way pipe is connected to the third discharge pipe through a first butterfly valve, and the other end of the three-way pipe is connected to the first return pipe through a second butterfly valve; the first return pipe extends to the top of the mixing barrel, and a plurality of second return pipes are provided at a section of the first return pipe located at the top of the mixing barrel.

[0008] Preferably, the blades of the stirring paddle are of different lengths.

[0009] Preferably, a dividing plate is provided in the feed hopper, the cross section of the dividing plate is an inverted "V" shape, and the dividing plate is located in the middle of the bottom of the feed hopper.

[0010] Preferably, a reducer is provided between each of the first motors and the stirring paddle.

[0011] The device can realize automatic stirring, complete the production and transportation of mud, improve the production and transportation efficiency of mud, and thus improve the construction efficiency of rotary drilling holes. In addition, the device adopts a reflux stirring method, so that the mud produced is mixed more evenly and fully, and the wall protection effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the mixing barrel in the device.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the stirring mechanism in the device.

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the device.

[0015] Figure 4 It is a front view structural schematic diagram of the device.

[0016] Figure 5It is a three-dimensional structural schematic diagram of the gantry crane in this device.

[0017] In the figure, 11, base; 111, connecting frame; 12, mixing barrel; 121, water inlet pipe; 122, first discharge pipe; 123, second discharge pipe; 13, mounting frame; 131, fixing plate; 132, first motor; 133, stirring paddle; 134, hopper; 135, mesh plate; 14, control electric box; 15, second motor; 16, water pump; 161, three-way pipe; 162, first butterfly valve; 163, third discharge pipe; 164, second butterfly valve; 165, first return pipe; 166, second return pipe; 17, pulley; 18, dividing plate; 19, reducer; 21, cross bridge; 22, main rod; 23, reinforcing rod; 24, cross plate; 25, electrical port connector; 26, upper connecting plate; 27, lower connecting plate. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 and Figure 2 As shown, a pile foundation rotary drilling hole wall protection mud mixing and conveying device includes a base 11 made of channel steel, a mixing barrel 12 is fixed on the base 11, a water inlet pipe 121 and a first discharge pipe 122 are provided on the outer wall of the mixing barrel 12, a mounting frame 13 is detachably installed in the mixing barrel 12, a plurality of fixing plates 131 are detachably installed on the mounting frame 13, a through hole is opened in the middle of each fixing plate 131, a first motor 132 is installed on the upper surface of each fixing plate 131, and a stirring paddle 133 is installed on the rotating shaft of each first motor 132; a feeding hopper 134 is also fixed on the mounting frame 13, a mesh plate 135 is laid on the top of the mixing barrel 12 on the mounting frame 13, and a control electric box 14 is fixed on the outer wall of the mixing barrel 12. When the device is used in a pile foundation construction site, its water inlet pipe 121 must first be connected to a water source, and its first discharge pipe 122 must be connected to a discharge hose; then raw materials such as yellow clay, bentonite, cellulose, and soda ash are added to the mixing barrel 12 through the feed hopper 134; then, the water source switch is turned on, water is poured into the mixing barrel 12, and when the water level reaches a suitable position, each first motor 132 is started by controlling the electric box 14 to start mixing and slurrying the materials. After the materials are fully mixed and the slurrying operation is completed, the switch on the discharge pipe is turned on to transport the slurry to the rotary excavation hole where the wall protection operation is required, so that the mixing and transportation of the wall protection slurry of the pile foundation rotary excavation hole is automatically carried out, and the efficiency of rotary excavation hole construction is improved.

[0020] like Figure 3 , Figure 4 and Figure 5As shown, the device also includes a gantry crane for loading, which spans over the mixing barrel 12; the gantry crane includes two pillars and a cross bridge 21, both ends of the cross bridge 21 are detachably connected to the top of the pillar; each pillar includes a main rod 22 and two reinforcing rods 23, and each reinforcing rod 23 is connected to the main rod 22 with a cross plate 24; an upper connecting plate 26 and a lower connecting plate 27 are fixed to the middle and lower parts of one of the pillars respectively; a connecting frame 111 is fixed to one side of the base 11, the lower connecting plate 27 is detachably connected to the connecting frame 111, and the upper connecting plate 26 is fixedly connected to the top of the mixing barrel 12; an electrical connector 25 is provided on the main rod 22 connected to the mixing barrel 12, and the electrical connector 25 is located below one of the cross plates 24. Since materials such as yellow clay and bentonite are often packaged in ton bags, in order to facilitate loading of the device, a special gantry crane is equipped to make loading simpler and lighter. In this device, a reinforcing rod 23 and a horizontal plate 24 are installed beside the main rod 22 of the gantry crane, which can make its support more stable. Secondly, the combination of the horizontal plate 24 and the reinforcing rod 23 on both sides of the main rod 22 forms a ladder, which is convenient for the staff to go up and down. In this device, an electrical port connector 25 is set on its main rod 22, so that the electrical connection between its mixing barrel 12 and the gantry crane is more convenient, and the electrical port connector 25 is set under one of the horizontal plates 24, so that the horizontal plate 24 can effectively shield it, making it more reliable.

[0021] like Figure 1 As shown, the base 11 can also be detachably mounted with a second motor 15 and a water pump 16, and a pulley 17 is provided between the second motor 15 and the water pump 16 to connect them; a second discharge pipe 123 is provided at the bottom of the mixing barrel 12, and the second discharge pipe 123 is connected to the water inlet end of the water pump 16 through a flange, and the discharge end of the water pump 16 is connected to a tee pipe 161 through a flange, one end of the tee pipe 161 is connected to the third discharge pipe 163 through a first butterfly valve 162, and the other end of the tee pipe 161 is connected to the first return pipe 165 through a second butterfly valve 164; the first return pipe 165 extends to the top of the mixing barrel 12, and a section of the first return pipe 165 located at the top of the mixing barrel 12 is provided with a plurality of second return pipes 166. Since the terrain of the construction site is high and low, when it is necessary to transport mud to a higher place, it cannot be achieved by relying solely on the first discharge pipe 122, so a second discharge pipe 123 connected to the water pump 16 is provided. We can open the first butterfly valve 162, close the second butterfly valve 164, and drive the pump 16 through the motor to discharge the mud from the third discharge pipe 163. We only need to connect the feeding pipe to the third discharge pipe 163 to achieve the feeding operation to a higher place. When there is no need to feed to a higher place, we can close the first butterfly valve 162 and open the second butterfly valve 164. The pump 16 can pump out the mud and return it to the mixing barrel 12 through the first return pipe 165 and the second return pipe 166 to achieve the circulation and stirring of the mud, making it more evenly and fully mixed, ensuring the quality of the mud and effectively preventing the mud from sinking to the bottom.

[0022] like Figure 2 As shown, the blades of the stirring paddle 133 are of inconsistent lengths, and a dividing plate 17 is provided in the hopper 134. The cross-section of the dividing plate 17 is an inverted "V" shape, and the dividing plate 17 is located in the middle position of the bottom of the hopper 134; a reducer 18 is provided between each first motor 132 and the stirring paddle 133 to connect.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A slurry stirring and conveying device for pile foundation rotary drilling hole wall protection, characterized in that: The device comprises a base (11) made of channel steel, a mixing barrel (12) is fixed on the base (11), a water inlet pipe (121) and a first discharge pipe (122) are arranged on the outer wall of the mixing barrel (12), a mounting frame (13) is detachably mounted in the mixing barrel (12), a plurality of fixing plates (131) are detachably mounted on the mounting frame (13), a through hole is opened in the middle of each fixing plate (131), a first motor (132) is mounted on the upper surface of each fixing plate (131), and a stirring paddle (133) is mounted on the rotating shaft of each first motor (132); a material feeding hopper (134) is also fixed on the mounting frame (13), a mesh plate (135) is laid on the top of the mixing barrel (12) on the mounting frame (13), and a control electric box (14) is fixed on the outer wall of the mixing barrel (12); The device also includes a gantry crane for loading materials, the gantry crane spanning above the mixing barrel (12); the gantry crane includes two pillars and a cross bridge (21), both ends of the cross bridge (21) are detachably connected to the top of the pillar; each of the pillars includes a main rod (22) and two reinforcing rods (23), and a cross plate (24) is provided between each of the reinforcing rods (23) and the main rod (22) for connection; an upper connecting plate (26) and a lower connecting plate (27) are fixed to the middle and lower parts of one of the pillars, respectively; a connecting frame (111) is fixed to one side of the base (11), the lower connecting plate (27) is detachably connected to the connecting frame (111), and the upper connecting plate (26) is fixedly connected to the top of the mixing barrel (12); an electrical port connector (25) is provided on the main rod (22) connected to the mixing barrel (12), and the electrical port connector (25) is located below one of the cross plates (24); A second motor (15) and a water pump (16) are also detachably mounted on the base (11); a pulley (17) is provided between the second motor (15) and the water pump (16) to connect them; a second discharge pipe (123) is provided at the bottom of the mixing barrel (12); the second discharge pipe (123) is connected to the water inlet end of the water pump (16) via a flange; a three-way pipe (161) is connected to the water outlet end of the water pump (16) via a flange; one end of the three-way pipe (161) is connected to the third discharge pipe (163) via a first butterfly valve (162); the other end of the three-way pipe (161) is connected to the first return pipe (165) via a second butterfly valve (164); the first return pipe (165) extends to the top of the mixing barrel (12); and a section of the first return pipe (165) located at the top of the mixing barrel (12) is provided with a plurality of second return pipes (166).

2. A slurry stirring and conveying device for pile foundation rotary drilling wall protection according to claim 1, characterized in that: The blades of the stirring paddle (133) are of different lengths.

3. The slurry stirring and conveying device for pile foundation rotary drilling wall protection according to claim 1, characterized in that: A material dividing plate (18) is provided in the feed hopper (134); the cross section of the material dividing plate (18) is in an inverted "V" shape; the material dividing plate (18) is located in the middle of the bottom of the feed hopper (134).

4. The device for mixing and conveying slurry for pile foundation rotary drilling wall protection according to claim 1, characterized in that: A reducer (19) is provided between each of the first motors (132) and the stirring paddles (133) to connect them.

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