Equipment for manufacturing flow-state solidified soil to replace shield synchronous mortar

Abstract

The invention discloses equipment for manufacturing flow-state solidified soil instead of shield synchronous mortar. The equipment comprises a rack, a vibrating screen assembly, a stirring barrel assembly and a water tank assembly, wherein the vibrating screen assembly, the stirring barrel assembly and the water tank assembly are arranged on the rack; the vibrating screen assembly comprises a vibrating screen shell, a mud dissolving knife arranged in the vibrating screen shell, a vibrating screen, a flushing pipeline and a vibrating screen discharging pipeline. The stirring barrel assembly comprises a stirring barrel and an outer circulation pipeline; the water tank assembly comprises a water tank and a water inlet pipeline. One end of the outer circulation pipeline is connected to the stirring barrel, the other end of the outer circulation pipeline is connected to the flushing pipeline, the water inlet pipeline is connected to the interior of the stirring barrel, water in the water tank enters the stirring barrel through the water inlet pipeline and enters the vibrating screen shell through the outer circulation pipeline and the flushing pipeline, and the vibrating screen and the mud-releasing knife are combined to treat solidified soil. The mud dissolving effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, and in particular to equipment for producing fluidized solidified soil to replace shield synchronous mortar. Background Art

[0002] According to statistics, my country generated 3 billion tons of construction waste in 2020, of which engineering waste accounted for more than 70%. At present, my country's output of engineering waste is huge, but the resource utilization is improper, and the recycling rate of waste resources is less than 5%, which is far lower than the utilization rate of more than 90% in developed countries. Therefore, the liquid solidification and resource utilization technology of waste soil can solve the problem from the source of engineering waste soil. It is the top priority for achieving green urban development and improving resource utilization. It is also an effective way to achieve carbon peak and carbon neutrality. In the existing technology, the mud disintegration and stirring of solidified soil is generally to directly add solidified soil and water into the mixing barrel, and stir and disintegrate the mud through a stirrer. However, the mud disintegration effect of the stirring method of the existing technology is poor and the density of the mud mixture cannot be controlled. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a device for making fluidized solidified soil to replace shield synchronous mortar. The vibrating screen and the mud dispersing knife are combined to process the solidified soil, and the mud dispersing effect is good.

[0004] The present invention adopts the following technical solutions: A device for producing fluidized solidified soil to replace shield synchronous mortar, characterized in that it includes a frame and a vibrating screen assembly, a mixing barrel assembly and a water tank assembly arranged on the frame; the vibrating screen assembly includes a vibrating screen shell, a mud dispersing knife arranged in the vibrating screen shell, and a vibrating screen; the mixing barrel assembly includes a mixing barrel; the water tank assembly includes a water tank; the water in the water tank enters the mixing barrel and then enters the vibrating screen shell.

[0005] Preferably, the vibrating screen assembly further includes a flushing pipeline and a vibrating screen discharge pipeline, the mixing barrel assembly includes an external circulation pipeline, and the water tank assembly further includes a water inlet pipeline, one end of the external circulation pipeline is connected to the mixing barrel, and the other end is connected to the flushing pipeline, the water in the water tank enters the mixing barrel through the water inlet pipeline, and enters the vibrating screen shell through the external circulation pipeline and the flushing pipeline; the mud desludging and screening are performed by the vibrating screen assembly, and the mixing and circulation of the mixing barrel assembly are linked with the water supply of the water tank assembly to form an integrated processing flow, thereby improving the mud desludging effect; at the same time, the closed-loop waterway design of water tank→mixing barrel→external circulation pipeline→vibrating screen→mixing barrel realizes the recycling of flushing water and reduces water resource waste.

[0006] Preferably, the vibrating screen includes a vibrating motor, a drive shaft located on the driving end of the vibrating motor, and an eccentric block located on the drive shaft; the eccentric block has an uneven texture, and the drive shaft is provided with an eccentric shell connected to the vibrating screen shell. The eccentric force generated by the rotation of the eccentric block causes the main body to vibrate through the drive shaft and the eccentric shell, and is directly transmitted to the screen, thereby greatly improving the soil crushing efficiency and screening speed; and the vibration can prevent the screen from being blocked, which is particularly suitable for the treatment of high-viscosity waste soil.

[0007] Preferably, a first screen is provided below the mud cutter, a second screen is provided between the eccentric shell and the vibrating screen shell, and a third screen is provided below the first screen. The sides of the third screen are connected to the inner wall of the vibrating screen shell to achieve progressive crushing and separation of the solidified soil and ensure uniform mud particle size.

[0008] Preferably, the second screen is arranged vertically or approximately vertically; the first screen, the second screen and the inner wall of the vibrating screen shell form a semi-closed mud-dissolving chamber, forcing the soil blocks to be repeatedly cut by the mud-dissolving knife in a limited space, thereby improving the crushing strength.

[0009] Preferably, the mixing barrel is provided with a mud inlet connected to the vibrating screen discharge pipe, the mixing barrel is connected to an internal circulation pipeline, the internal circulation pipeline is provided with a density meter, after the mud mixture enters the mixing barrel, its current density is measured by the density meter, and the density of the mixture in the mixing barrel is detected online through the internal circulation pipeline and the density meter.

[0010] Preferably, the mud mixture in the mixing barrel is circulated again into the vibrating screen assembly until the density reaches the set value. When the density exceeds the standard, water is automatically added to dilute it and return it to the vibrating screen for secondary crushing, forming a closed loop of "detection-adjustment-reprocessing".

[0011] Preferably, at least two groups of mud cutters are provided in the vibrating screen assembly, all the mud cutters rotate in the same direction or adjacent mud cutters rotate in opposite directions; the flushing pipeline is arranged above the mud cutters; the multi-mud cutter same-direction / reverse direction combination design enhances the shear force on the agglomerated waste soil and adapts to soils of different hardness.

[0012] Preferably, the machine further comprises a curing agent bin assembly and a blending material bin assembly disposed on the frame.

[0013] Preferably, the curing agent bin assembly includes a curing agent bin body, a curing agent conveying mechanism, a curing agent metering bin, a curing agent scale and a curing agent metering bin control valve; the curing agent in the curing agent bin body is conveyed to the curing agent metering bin by the curing agent conveying mechanism and the weight is controlled using the curing agent scale. After the requirement is reached, the curing agent metering bin control valve is controlled to deliver the curing agent into the stirring barrel through the curing agent inlet of the stirring barrel assembly.

[0014] Preferably, the admixture silo assembly includes an admixture silo body, an admixture conveying mechanism, an admixture metering silo, an admixture scale and an admixture metering silo control valve; the admixture in the admixture silo body is conveyed to the admixture metering silo through the admixture conveying mechanism and the weight is controlled using the admixture scale. After the requirements are met, the admixture metering silo control valve is controlled to convey the admixture into the mixing barrel through the admixture inlet of the mixing barrel assembly.

[0015] Compared with the prior art, the present invention has the following advantages: The present invention provides an apparatus for producing fluidized solidified soil to replace shield synchronous mortar, comprising a frame and a vibrating screen assembly, a stirring barrel assembly and a water tank assembly arranged on the frame; the vibrating screen assembly performs mud demulsification and screening, the stirring barrel assembly performs mixing and circulation, and the water supply of the water tank assembly forms an integrated processing flow to improve the mud demulsification effect; the mud demulsifier in the vibrating screen directly breaks up soil blocks, and cooperates with the flushing of the flushing pipeline to significantly improve the initial mud demulsification efficiency of engineering waste soil; at the same time, the closed-loop water circuit design of water tank → stirring barrel → external circulation pipeline → vibrating screen → stirring barrel realizes the recycling of flushing water and reduces water resource waste.

[0016] The first screen, the second screen and the inner wall of the vibrating screen shell form a semi-enclosed mud-dissolving chamber, forcing the soil blocks to be repeatedly cut by the mud-dissolving knife in a limited space, thereby improving the crushing strength; the vertical second screen blocks the mud blocks from flying, ensuring centralized material processing and avoiding equipment pollution.

[0017] The density of the mixture in the mixing barrel is detected online through the internal circulation pipeline + density meter, solving the pain point of "unable to control density" in the background technology; in addition, the density data is linked to the water tank replenishment to achieve intelligent adjustment and ensure the accurate proportion of solidified soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Front isometric view of the equipment for producing fluidized solidified soil to replace shield synchronous mortar.

[0019] Figure 2 Rear isometric view of the equipment used to produce fluidized solidified soil instead of shield synchronous mortar.

[0020] Figure 3 Lower isometric view of the equipment used to produce fluidized solidified soil to replace shield synchronous mortar.

[0021] Figure 4 Upper isometric view of the equipment for producing fluidized solidified soil to replace shield synchronous mortar.

[0022] Figure 5 It is a structural diagram of the vibrating screen assembly.

[0023] Figure 6 It is a partial structural diagram of the vibrating screen assembly.

[0024] Figure 7 A cross-sectional view of a vibrating screen assembly.

[0025] In the figure, 1. Vibrating screen assembly; 1-1. Mud dissolving knife; 1-2. Vibrating screen; 1-2-1. Vibrating motor; 1-2-2. Drive shaft; 1-2-3. Eccentric housing; 1-2-4. Eccentric block; 1-3. Water flushing pipeline; 1-4. Water flushing pipeline control valve; 1-5. Vibrating screen discharge pipeline; 1-6. Vibrating screen discharge pipeline control valve; 1-7. Soil feeding port; 1-8. Vibrating screen housing; 1-9. First screen; 1-10. Second screen; 1-11. Third screen; 2. Mixing barrel assembly; 2-1. Mixing barrel; 2-2. Internal circulation pipeline; 2-3. External circulation pipeline; 2-4. Discharge pipeline; 2-5 Discharge pipeline control valve; 2-6. Curing agent inlet; 2- 7. Admixture inlet; 2-8. Water inlet; 2-9. Mud inlet; 2-10. Density meter; 2-11. Mixing drum scale; 2-12. Internal and external circulation pipeline control valve; 3. Drag pump assembly; 4. Curing agent silo assembly; 4-1. Curing agent silo body; 4-2. Curing agent conveying mechanism; 4-3. Curing agent metering silo; 4-4. Curing agent scale; 4-5 Curing agent metering silo control valve; 5. Admixture silo assembly; 5-1. Admixture silo body; 5-2. Admixture conveying mechanism; 5-3. Admixture metering silo; 5-4. Admixture scale; 5-5 Admixture metering silo control valve; 6. Water tank assembly; 6-1. Water tank; 6-2. Water inlet pipe; 6-3. Water inlet pipe control valve; 7. Control room. DETAILED DESCRIPTION

[0026] In order to facilitate understanding of the technical solution of the present invention, a detailed description is given below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1 like Figure 1-7 As shown, a device for producing fluidized solidified soil to replace shield synchronous mortar includes a frame and a vibrating screen assembly 1, a mixing barrel assembly 2, a water tank assembly 6 and a control room 7 arranged on the frame; The vibrating screen assembly 1 includes a vibrating screen housing 1-8, a mud remover 1-1 disposed in the vibrating screen housing 1-8, a vibrating screen 1-2, a flushing pipeline 1-3, and a vibrating screen discharge pipe 1-5; The mud-removing blade 1-1 includes a rotating shaft and a blade body mounted on the rotating shaft. A mud-removing motor is connected to one end of the rotating shaft. The mud-removing motor is located outside the vibrating screen housing 1-8. The mud-removing motor drives the mud-removing blade 1-1 to rotate, thereby removing mud. In this embodiment, the mud-removing blades 1-1 are provided in two groups. A pulley is provided at one end of the rotating shaft, and a belt is provided on the outer cover of the two pulleys. The mud-removing motor drives the pulley to rotate, thereby driving the two groups of mud-removing blades 1-1 to rotate simultaneously. In addition, a water flushing pipeline control valve 1-4 is provided on the flushing pipeline 1-3 to control the opening and closing of the flushing pipeline 1-3.

[0028] The mixing barrel assembly 2 includes a mixing barrel 2-1 and an external circulation pipeline 2-3; one end of the external circulation pipeline 2-3 is connected to the mixing barrel 2-1, and the other end is connected to the flushing pipeline 1-3.

[0029] The water tank assembly 6 includes a water tank 6-1 and a water inlet pipe 6-2; the water inlet pipe 6-2 is connected to the water inlet 2-8 of the mixing barrel 2-1, and the water in the water tank 6-1 enters the mixing barrel 2-1 through the water inlet pipe 6-2, and enters the vibrating screen shell 1-8 through the external circulation pipe 2-3 and the flushing pipe 1-3.

[0030] The desludging and screening by the vibrating screen assembly 1, the mixing and circulation by the stirring barrel assembly 2 and the water supply by the water tank assembly 6 form an integrated processing process to improve the desludging effect; At the same time, the closed-loop water circuit design of water tank → mixing barrel → external circulation pipeline → vibrating screen → mixing barrel realizes the recycling of flushing water and reduces water waste.

[0031] like Figure 5-7 As shown, the vibrating screen 1-2 includes a vibrating motor 1-2-1, a driving shaft 1-2-2 located on the driving end of the vibrating motor 1-2-1, and an eccentric block 1-2-4 located on the driving shaft 1-2-2; the eccentric block 1-2-4 has an uneven texture, so that the center of gravity of the eccentric block 1-2-4 is not on the rotation center of gravity, and the driving shaft 1-2-2 is provided with an eccentric shell 1-2-3 connected to the vibrating screen shell 1-8. The eccentric force generated by the rotation of the eccentric block 1-2-4 causes the main body 1 to vibrate through the driving shaft 1-2-2 and the eccentric shell 1-2-3, and is directly transmitted to the screen, thereby greatly improving the soil crushing efficiency and screening speed; and the vibration can prevent the screen from being blocked, which is particularly suitable for the treatment of high-viscosity waste soil.

[0032] A first screen 1-9 is provided below the mud dispersing knife 1-1, a second screen 1-10 is provided between the eccentric housing 1-2-4 and the vibrating screen housing 1-8, and a third screen 1-11 is provided below the first screen 1-9. The sides of the third screen 1-11 are all connected to the inner wall of the vibrating screen housing 1-8, thereby achieving progressive crushing and separation of the solidified soil and ensuring uniform mud particle size. The mesh holes of the first screen 1-9, the second screen 1-10, and the third screen 1-11 can be circular, triangular, square, or other shapes.

[0033] The second screen 1-10 is vertically or nearly vertically arranged. The first screen 1-9, the second screen 1-10, and the inner wall of the vibrating screen housing 1-8 form a semi-enclosed mud-disintegration chamber, forcing the mud-disintegration knife to repeatedly cut the soil blocks within a limited space, thereby improving the crushing strength. The upper end of the vibrating screen housing 1-8 is a soil feeding port 1-7 for feeding solidified soil.

[0034] The mixing barrel 2-1 is provided with a slurry inlet 2-9 connected to the vibrating screen discharge pipe 1-5. The vibrating screen discharge pipe 1-5 is provided with a vibrating screen discharge pipe control valve 1-9, which is used to control the opening and closing of the vibrating screen discharge pipe 1-5. The mixing barrel 2-1 is also provided with an internal circulation pipeline 2-2, which is equipped with a densitometer 2-10 and an internal and external circulation pipeline control valve 2-12. The mud mixture enters the mixing barrel 2-1 through the vibrating screen discharge pipe 1-5 and the slurry inlet 2-9, then enters the internal circulation pipe 2-2, where its current density is measured by the densitometer 2-10. The density of the mixture in the mixing barrel is then monitored online via the internal circulation pipeline and the densitometer.

[0035] If the current density is greater than the preset value, the water in the water tank 6-1 enters the mixing barrel 2-1 through the water inlet pipe 6-2, and carries the mud mixture through the external circulation pipe 2-3 and the flushing pipe 1-3 into the vibrating screen shell 1-8. When the density exceeds the standard, water is automatically added for dilution and returned to the vibrating screen for secondary crushing, forming a closed loop of "detection-adjustment-reprocessing".

[0036] A discharge pipe 2-4 is provided on one side of the mixing barrel 2-1. When the mud mixture meets the standards, it can be discharged into the drag pump assembly 3 through the discharge pipe 2-4; a discharge pipe control valve 2-5 is provided on the discharge pipe 2-4.

[0037] The vibrating screen assembly 1 is provided with two groups of mud cutters 1-1, which rotate in the same direction or in opposite directions; the flushing pipeline 1-3 is arranged above the mud cutters 1-1; the multi-mud cutter same-direction / reverse direction combination design enhances the shear force on the agglomerated waste soil and adapts to soils of different hardness.

[0038] It also includes a curing agent bin assembly 4 and a blending material bin assembly 5 which are arranged on the frame.

[0039] The curing agent bin assembly 4 includes a curing agent bin body 4-1, a curing agent conveying mechanism 4-2, a curing agent metering bin 4-3, a curing agent scale 4-4 and a curing agent metering bin control valve 4-5; the curing agent in the curing agent bin body 4-1 is conveyed to the curing agent metering bin 4-3 by the curing agent conveying mechanism 4-2 and is weighed using the curing agent scale 4-4 for weight control. When the required weight is reached, the curing agent metering bin control valve 4-5 is controlled to convey the curing agent into the stirring barrel 2-1 through the curing agent inlet 2-6 of the stirring barrel assembly 2.

[0040] The admixture silo assembly 5 includes an admixture silo body 5-1, an admixture conveying mechanism 5-2, an admixture metering silo 5-3, an admixture scale 5-4 and an admixture metering silo control valve 5-5; the admixture in the admixture silo body 5-1 is conveyed to the admixture metering silo 5-3 through the admixture conveying mechanism 5-2 and the weight is controlled using the admixture scale 5-4. After the required weight is reached, the admixture metering silo control valve 5-5 is controlled to convey the admixture into the mixing barrel 2-1 through the admixture inlet 2-7 of the mixing barrel assembly 2.

[0041] In this embodiment, the curing agent is aggregate and the admixture is powder.

[0042] The mixing barrel 2-1 is provided with a mixing barrel scale 2-11, and the weight of the mud mixture in the mixing barrel 2-1 is recorded by the mixing barrel scale 2-11, and then the curing agent and admixture are added according to the required proportion.

[0043] The above are only preferred embodiments of the present invention. The scope of protection of the present invention shall be based on the scope defined by the claims. Several improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the scope of protection of the present invention.

Claims

1. A device for producing fluidized solidified soil to replace shield synchronous mortar, characterized in that: The invention comprises a frame, a vibrating screen assembly (1), a mixing barrel assembly (2), and a water tank assembly (6) arranged on the frame; the vibrating screen assembly (1) comprises a vibrating screen housing (1-8), a mud-removing knife (1-1) arranged in the vibrating screen housing (1-8), and a vibrating screen (1-2); the mixing barrel assembly (2) comprises a mixing barrel (2-1); the water tank assembly (6) comprises a water tank (6-1); water in the water tank (6-1) enters the mixing barrel (2-1) and then enters the vibrating screen housing (1-8).

2. The device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1, characterized in that: The vibrating screen assembly (1) further includes a flushing pipeline (1-3) and a vibrating screen discharge pipeline (1-5); the mixing barrel assembly (2) includes an external circulation pipeline (2-3); and the water tank assembly (6) further includes a water inlet pipeline (6-2); one end of the external circulation pipeline (2-3) is connected to the mixing barrel (2-1), and the other end is connected to the flushing pipeline (1-3); the water in the water tank (6-1) enters the mixing barrel (2-1) through the water inlet pipeline (6-2), and enters the vibrating screen housing (1-8) through the external circulation pipeline (2-3) and the flushing pipeline (1-3).

3. The equipment for producing fluidized solidified soil to replace shield synchronous mortar according to claim 2 is characterized in that: The vibrating screen (1-2) comprises a vibrating motor (1-2-1), a driving shaft (1-2-2) located on a driving end of the vibrating motor (1-2-1), and an eccentric block (1-2-4) located on the driving shaft (1-2-2); the eccentric block (1-2-4) has an uneven texture, an eccentric housing (1-2-3) connected to a vibrating screen housing (1-8) is provided on the driving shaft (1-2-2), and the eccentric force generated by the rotation of the eccentric block (1-2-4) is transmitted through the driving shaft (1-2-2) and the eccentric housing (1-2-3) to cause the main body (1) to vibrate.

4. The equipment for producing fluidized solidified soil to replace shield synchronous mortar according to claim 3 is characterized in that: A first screen (1-9) is provided below the mud-removing knife (1-1), a second screen (1-10) is provided between the eccentric housing (1-2-3) and the vibrating screen housing (1-8), a third screen (1-11) is provided below the first screen (1-9), and the sides of the third screen (1-11) are connected to the inner wall of the vibrating screen housing (1-8); the second screen (1-10) is vertically arranged or approximately vertically arranged; the first screen (1-9), the second screen (1-10) and the inner wall of the vibrating screen housing (1-8) surround and form a semi-enclosed mud-removing cavity.

5. The equipment for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1 is characterized in that: The mixing barrel (2-1) is provided with a slurry inlet (2-9) connected to a vibrating screen discharge pipe (1-5). The mixing barrel (2-1) is connected to an internal circulation pipeline (2-2). The internal circulation pipeline (2-2) is provided with a density meter (2-10). After the slurry mixture enters the mixing barrel (2-1), its current density is measured by the density meter (2-10).

6. The equipment for producing fluidized solidified soil to replace shield synchronous mortar according to claim 5 is characterized in that: The mud mixture in the mixing barrel (2-1) is circulated again through the vibrating screen assembly (1) until the density reaches the set value.

7. The equipment for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1 is characterized in that: At least two groups of mud-clearing knives (1-1) are provided in the vibrating screen assembly (1), all the mud-clearing knives (1-1) rotate in the same direction or adjacent mud-clearing knives (1-1) rotate in opposite directions; and the flushing pipeline (1-3) is provided above the mud-clearing knives (1-1).

8. The equipment for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1 is characterized in that: It also includes a curing agent bin assembly (4) and a blending material bin assembly (5) arranged on the frame.

9. The device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 8, characterized in that: The curing agent bin assembly (4) comprises a curing agent bin body (4-1), a curing agent delivery mechanism (4-2), a curing agent metering bin (4-3), a curing agent scale (4-4), and a curing agent metering bin control valve (4-5); the curing agent in the curing agent bin body (4-1) is delivered to the curing agent metering bin (4-3) by the curing agent delivery mechanism (4-2) and weight control is performed using the curing agent scale (4-4); when the required weight is reached, the curing agent metering bin control valve (4-5) is controlled to deliver the curing agent into the stirring barrel (2-1) through the curing agent inlet (2-6) of the stirring barrel assembly (2).

10. The equipment for producing fluidized solidified soil to replace shield synchronous mortar according to claim 8, characterized in that: The admixture silo assembly (5) comprises an admixture silo body (5-1), an admixture conveying mechanism (5-2), an admixture metering silo (5-3), an admixture scale (5-4), and an admixture metering silo control valve (5-5); the admixture in the admixture silo body (5-1) is conveyed to the admixture metering silo (5-3) by the admixture conveying mechanism (5-2) and weight-controlled by the admixture scale (5-4); when the required weight is reached, the admixture metering silo control valve (5-5) is controlled to convey the admixture into the mixing barrel (2-1) through the admixture inlet (2-7) of the mixing barrel assembly (2).

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