Weathered sand washing ultrasonic efficient desliming device

Abstract

The invention discloses a weathered sand washing ultrasonic efficient desliming device, and belongs to the technical field of ultrasonic washing desliming. A sand washing groove is formed in the machine shell, a clean water inlet pipe and an overflow water outlet are arranged on one side of the machine shell, and a discharging opening is formed in the other side of the machine shell; the feeding funnel is arranged at the top of the shell, one end of the feeding funnel extends into the sand washing tank, and the feeding funnel is used for feeding a sand-mud water mixture into the sand washing tank; the transducers are arranged on the inner wall of the sand washing tank; the ultrasonic generator is arranged outside the machine shell and connected with the transducers; and the stirring and conveying mechanism is rotationally connected to the interior of the sand washing tank and used for conveying the washed weathered sand to the discharging opening. According to the method, the ultrasonic desliming has the advantages of low energy consumption, high efficiency and small water consumption, the production cost of enterprises is greatly reduced, meanwhile, the problems of water resource waste, environmental pollution and the like are avoided, comprehensive utilization of weathered sand and other resources is promoted, and the method has important technical significance and wide application prospects.

Description

Technical Field

[0001] The invention relates to a weathered sand water washing ultrasonic high-efficiency mud removal device, belonging to the technical field of ultrasonic water washing mud removal. Background Art

[0002] In the sand and gravel industry, weathered sand generally refers to mountain sand resources contained in the fully weathered layer of granite mines. In the past, such resources were usually piled up in spoil dumps. Now, as the development concept of "ecological priority and green environmental protection" has become a consensus, the industry has begun to pay attention to the comprehensive utilization of this type of resources.

[0003] Since weathered sand contains impurities such as soil, it is necessary to pre-treat the weathered sand using multiple water washing and desludging processes so that the quality of the sand can meet the relevant requirements. At present, the traditional treatment methods for weathered sand mainly include mechanical stirring and washing and hydrocyclone desludging.

[0004] This method of mechanical stirring cleaning mainly relies on stirring equipment to mix sand and water and produce relative movement to achieve the purpose of mud removal. However, for some highly adhesive soils and mud particles with smaller particle sizes, the removal effect is not good, and mechanical stirring can easily cause a certain degree of wear on the sand particles, affecting the particle shape and grading of the sand, and thus affecting its subsequent performance.

[0005] The hydrocyclone desludging utilizes the centrifugal force field for separation, but the separation accuracy is limited for fine mud with particle size close to sand. During operation, the feed pressure, concentration and other parameters need to be precisely controlled, otherwise the separation efficiency is prone to large fluctuations.

[0006] In summary, the traditional method of desludging weathered sand has the disadvantages of high energy consumption, low efficiency, and high water consumption, which increases the production cost of the enterprise. At the same time, there are problems such as water resource waste and environmental pollution, which restricts the comprehensive utilization of resources such as weathered sand.

[0007] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a weathered sand water washing ultrasonic high-efficiency desludging device, which solves the shortcomings of the traditional method for weathered sand desludging in the prior art, such as high energy consumption, low efficiency, and large water consumption, which increases the production cost of the enterprise. At the same time, there are problems such as water resource waste and environmental pollution, which restricts the comprehensive utilization of resources such as weathered sand.

[0009] The technical problem to be solved by the present invention is achieved by adopting the following technical scheme: a weathered sand washing ultrasonic high-efficiency mud removal device, comprising: The casing is provided with a sand washing tank inside, a clean water inlet pipe and an overflow outlet are provided on one side, and a discharge port is provided on the other side, wherein the top of the sand washing tank is open, the clean water inlet pipe is provided at the bottom of one side of the casing, the overflow outlet is provided at the top of the casing on the same side of the clean water inlet pipe, and the overflow outlet is externally connected to a sedimentation tank; A feeding funnel is arranged on the top of the casing and the bottom of which extends into the sand washing tank, and is used to feed the sand-mud-water mixture into the sand washing tank; A plurality of transducers are fixed on the inner wall of one end of the sand washing tank; An ultrasonic generator is arranged outside the housing and is electrically connected to the plurality of transducers; The stirring and conveying mechanism is rotatably connected to the inside of the sand washing tank and is used to convey the cleaned weathered sand to the discharge port.

[0010] By adopting the above technical scheme, ultrasonic desludging has the advantages of low energy consumption, high efficiency and low water consumption, which greatly reduces the production cost of the enterprise, while avoiding problems such as water resource waste and environmental pollution, and promotes the comprehensive utilization of resources such as weathered sand. It has important technical significance and broad application prospects.

[0011] The present invention is further configured as follows: the casing is inclined, and the height of the casing at one end of the overflow outlet is lower than the height at one end of the discharge outlet. Specifically, support frame 1 and support frame 2, both made of steel sections, are respectively provided on both sides of the bottom of the casing corresponding to the feed funnel and the discharge outlet. The height of support frame 1 is lower than that of support frame 2.

[0012] By adopting the above technical solution, support frame 1 and support frame 2 are used to fix and support the entire desludging device and maintain stability. Among them, since the height of support frame 1 is lower than that of support frame 2, the entire casing is inclined upward, so that the weathered sand after desludging is transported upward in an inclined manner toward the discharge port, and can play a role in preliminary dehydration after crossing the clean water level.

[0013] The present invention is further configured as follows: an inner wall of one side of the casing close to the overflow outlet is convex and an overflow weir is also provided at the convex portion, an overflow cavity is formed between the overflow weir and the inner top wall of the casing, and the overflow cavity is connected to the overflow outlet.

[0014] By adopting the above technical solution, the overflow weir has the function of blocking weathered sand particles from entering the overflow outlet. By limiting the diameter of the overflow outlet, it is ensured that only muddy water can flow out of the overflow outlet, avoiding the waste of weathered sand.

[0015] The present invention is further configured as follows: the stirring and conveying mechanism includes a rotating shaft rotatably connected to the inside of the sand washing tank, the rotating shaft is spirally provided with spiral blades along the length direction of the rotating shaft, and one end of the casing is also provided with a driving source for driving the rotating shaft to rotate.

[0016] By adopting the above technical scheme, the rotating shaft and the spiral blades are driven to rotate by a driving source, so that the cleaned weathered sand can be transported accordingly, and through the stirring action of the spiral blades, the weathered sand can be fully turned over in the water during the cleaning process, and the desludged weathered sand that sinks to the bottom of the pool is gradually transported to the discharge port.

[0017] The present invention is further configured as follows: an outer cover is provided at one end of the feed funnel extending into the sand washing tank, and a feed cover plate is provided; the feed cover plate is in a cone shape, and the end away from the feed funnel is a large end.

[0018] By adopting the above technical scheme, in the process of injecting the sand, mud and water mixture into the self-washing sand tank, the sand, mud and water mixture flows out through the feed funnel and impacts the feed cover plate. The fast-flowing sand, mud and water flow slowly diffuses to the surroundings under the blocking of the feed cover plate, which has a good blocking effect and effectively avoids the situation that the fast-flowing sand, mud and water in the pipeline quickly rushes out from the outlet of the feed funnel, forming violent turbulence in the sand washing tank, causing the weathered sand particles to be unable to sink normally and the clay minerals separated from the surface of the sand particles to be unable to enter the overflow outlet with the rising water flow.

[0019] The present invention is further configured as follows: a plurality of drainage holes are provided on one side of the casing.

[0020] By adopting the above technical solution, it is convenient to empty the sand washing tank during daily maintenance.

[0021] The present invention is further configured as follows: a water flow control device is arranged on the clean water inlet pipe.

[0022] By adopting the above technical solution, the water pressure and flow rate entering the sand washing tank can be effectively controlled.

[0023] The beneficial effects of the present invention are as follows: ultrasonic desludging has the advantages of low energy consumption, high efficiency and low water consumption, which greatly reduces the production cost of the enterprise, while avoiding problems such as waste of water resources and environmental pollution, and promotes the comprehensive utilization of resources such as weathered sand. It has important technical significance and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 3 The structure of the present invention is schematically shown Figure 2 ; Figure 4 It is a connection diagram of the transducer and the ultrasonic generator in the present invention.

[0025] In the figure: 1. casing; 2. sand washing tank; 3. clean water inlet pipe; 4. overflow outlet; 5. discharge port; 6. feed hopper; 7. transducer; 8. ultrasonic generator; 9. stirring and conveying mechanism; 10. support frame 1; 11. support frame 2; 12. overflow weir; 13. overflow chamber; 14. rotating shaft; 15. spiral blade; 16. driving source; 17. feed cover plate; 18. drainage hole; 19. water flow control device. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0027] like Figure 1 and Figure 4 As shown, a weathered sand washing ultrasonic high-efficiency desludging device comprises: A casing 1 is provided with a sand washing tank 2 inside, and a clean water inlet pipe 3 and an overflow outlet 4 are provided on one side, and a discharge port 5 is provided on the other side, wherein the top of the sand washing tank 2 is open, the clean water inlet pipe 3 is provided at the bottom of one side of the casing 1, and the overflow outlet 4 is provided at the top of the casing 1 on the same side as the clean water inlet pipe 3, and the overflow outlet 4 is externally connected to a sedimentation tank; A feeding funnel 6 is arranged on the top of the casing 1 and the bottom end of which extends into the sand washing tank 2, and is used to feed the sand-mud-water mixture into the sand washing tank 2; A plurality of transducers 7 are fixed on the inner wall of one end of the sand washing tank 2; An ultrasonic generator 8 is arranged outside the housing 1 and is electrically connected to the plurality of transducers 7; The stirring and conveying mechanism 9 is rotatably connected to the inside of the sand washing tank 2 and is used for conveying the cleaned weathered sand to the discharge port 5 .

[0028] When cleaning weathered sand, first pour the sand-mud-water mixture from the feed funnel 6 into the sand washing tank 2, then inject clean water into the sand washing tank 2 through the clean water inlet pipe 3 and turn on the ultrasonic generator 8. The ultrasonic generator 8 generates an ultrasonic signal of a specific frequency and power, which is converted into high-frequency mechanical vibration and high-speed micro-jet through the transducer 7, generating a strong ultrasonic field in the water of the sand washing tank 2. The cavitation effect of the ultrasonic wave is used to loosen and detach the mud particles and soft particles on the surface and pores of the weathered sand. When the water level in the sand washing tank 2 reaches the limit height, accompanied by the rising water flow, the collected muddy water is automatically discharged from the overflow outlet 4 to the sedimentation tank, and the weathered sand particles sink to the bottom of the tank due to their own gravity. Finally, the stirring and conveying mechanism 9 is used to convey the cleaned weathered sand to the discharge port 5, so that the demuding operation of the weathered sand can be completed, and the operation is convenient.

[0029] Specifically, due to the unique physical properties of ultrasound, when it propagates in a liquid medium, it will produce cavitation, mechanical and thermal effects. The cavitation effect of ultrasound can form tiny bubbles in the liquid. These bubbles generate a strong impact force at the moment of rupture, which can cause the mud attached to the surface of the sand to fall off. Even those tightly bound stubborn mud can be effectively separated under the cavitation effect. In addition, the cavitation effect can penetrate into the microscopic pores and gaps of the sand, clean out the mud hidden therein, and greatly improve the thoroughness of mud removal. Moreover, the particle vibration caused by ultrasonic propagation can strengthen the separation effect between sand and mud particles, promote the dispersion of mud particles in water, and make it easier to be discharged with the water flow. At the same time, it has a certain cleaning and activation effect on the surface of the sand, which is beneficial to subsequent processing and use. The moderate thermal effect of ultrasound can reduce the viscosity of the mud, making it easier to detach from the surface of the sand, and can accelerate the Brownian motion speed of impurities in the water, thereby improving the separation efficiency.

[0030] Therefore, the use of ultrasonic desludging has the advantages of low energy consumption, high efficiency and low water consumption, which greatly reduces the production cost of the enterprise, while avoiding problems such as water resource waste and environmental pollution, and promotes the comprehensive utilization of resources such as weathered sand. It has important technical significance and broad application prospects.

[0031] like Figure 1 As shown, the casing 1 is tilted, and the height of the casing 1 at one end of the overflow outlet 4 is lower than the height at the end of the discharge port 5. Specifically, a support frame 10 and a support frame 2 11 both made of steel sections are respectively provided on both sides of the bottom of the casing 1 corresponding to the positions of the feed funnel 6 and the discharge port 5, and the height of the support frame 10 is lower than that of the support frame 2 11.

[0032] Support frame 1 10 and support frame 2 11 are used to fix and support the entire desludging device and maintain stability. Since the height of support frame 10 is lower than that of support frame 2 11, the entire casing 1 is inclined upward, so that the weathered sand after desludging is transported upward in an inclined manner toward the discharge port 5, and can play a role in preliminary dehydration after crossing the clean water level.

[0033] like Figure 1 As shown, the inner wall of one side of the casing 1 close to the overflow outlet 4 is convex and an overflow weir 12 is also provided at the convex part, an overflow cavity 13 is formed between the overflow weir 12 and the inner top wall of the casing 1, and the overflow cavity 13 is connected to the overflow outlet 4.

[0034] The overflow weir 12 has the function of blocking weathered sand particles from entering the overflow outlet 4. By limiting the diameter of the overflow outlet 4, it is ensured that only muddy water can flow out of the overflow outlet 4, avoiding the waste of weathered sand.

[0035] like Figure 1As shown, the stirring and conveying mechanism 9 includes a rotating shaft 14 rotatably connected to the inside of the sand washing tank 2, and a spiral blade 15 is spirally arranged on the rotating shaft 14 along the length direction of the rotating shaft 14. A driving source 16 for driving the rotating shaft 14 to rotate is also provided at one end of the casing 1. In this embodiment, the driving source 16 is a motor.

[0036] The rotating shaft 14 and the spiral blade 15 are driven to rotate by the driving source 16, so that the cleaned weathered sand can be transported accordingly, and the stirring action of the spiral blade 15 allows the weathered sand to be fully turned over in the water during the cleaning process, and the desludged weathered sand that sinks to the bottom of the pool is gradually transported to the discharge port 5.

[0037] like Figure 2 As shown, one end of the feed funnel 6 extending into the sand washing tank 2 is provided with an outer cover provided with a feed cover plate 17, and the feed cover plate 17 is in a conical shape and the end away from the feed funnel 6 is a large end.

[0038] During the process of injecting the sand, mud and water mixture into the sand washing tank 2, the sand, mud and water mixture flows out through the feed funnel 6 and impacts the feed cover 17. The fast-flowing sand, mud and water flow slowly diffuses to the surroundings under the obstruction of the feed cover 17, which has a good blocking effect and effectively avoids the situation that the fast-flowing sand, mud and water in the pipeline quickly rushes out from the outlet of the feed funnel 6, forming violent turbulence in the sand washing tank 2, causing the weathered sand particles to be unable to sink normally and the clay minerals separated from the surface of the sand particles to be unable to enter the overflow outlet 4 with the rising water flow.

[0039] like Figure 3 As shown, a plurality of drainage holes 18 are provided on one side of the casing 1 to facilitate draining the sand washing tank 2 during routine maintenance.

[0040] like Figure 1 As shown, a water flow control device 19 is provided on the clean water inlet pipe 3. In this embodiment, the water flow control device 19 is a valve, so that the water flow pressure and flow rate entering the sand washing tank 2 can be effectively controlled.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A weathered sand washing ultrasonic high-efficiency desludging device, characterized in that: include: A casing (1) is provided with a sand washing tank (2) inside and a clean water inlet pipe (3) and an overflow outlet (4) on one side, and a discharge port (5) on the other side; A feeding funnel (6) is arranged on the top of the casing (1) and one end of which extends into the sand washing tank (2) and is used to feed a sand-mud-water mixture into the sand washing tank (2); A plurality of transducers (7) are arranged on the inner wall of the sand washing tank (2); An ultrasonic generator (8) is arranged outside the housing (1) and is connected to the plurality of transducers (7); The stirring and conveying mechanism (9) is rotatably connected to the interior of the sand washing tank (2) and is used to convey the cleaned weathered sand to the discharge port (5).

2. The weathered sand washing ultrasonic high-efficiency desludging device according to claim 1 is characterized by: An outer cover is provided at one end of the feed funnel (6) extending into the sand washing tank (2) and provided with a feed cover plate (17); the feed cover plate (17) is in a conical cylindrical shape and the end away from the feed funnel (6) is a large end.

3. The weathered sand washing ultrasonic high-efficiency desludging device according to claim 1 is characterized by: The casing (1) is arranged to be inclined, and the height of the casing (1) at one end of the overflow outlet (4) is lower than the height at one end of the casing (1) at the discharge outlet (5).

4. The weathered sand washing ultrasonic high-efficiency desludging device according to claim 3 is characterized by: The inner wall of one side of the casing (1) close to the overflow outlet (4) is convexly arranged and an overflow weir (12) is also arranged at the convex position, and an overflow cavity (13) is formed between the overflow weir (12) and the inner top wall of the casing (1).

5. The weathered sand washing ultrasonic high-efficiency desludging device according to claim 1 is characterized by: A plurality of drainage holes (18) are provided on one side of the casing (1).

6. The weathered sand washing ultrasonic high-efficiency desludging device according to claim 3 is characterized by: The stirring and conveying mechanism (9) comprises a rotating shaft (14) rotatably connected to the inside of the sand washing tank (2), the rotating shaft (14) being provided with a spiral blade (15), and a driving source (16) for driving the rotating shaft (14) to rotate is also provided at one end of the housing (1).

7. The weathered sand washing ultrasonic high-efficiency desludging device according to claim 1 is characterized by: The clean water inlet pipe (3) is provided with a water flow control device (19), and the water flow control device (19) is used to control the pressure and flow rate of the water entering the sand washing tank (2).

8. The weathered sand washing ultrasonic high-efficiency desludging device according to claim 3 is characterized by: A support frame 1 (10) and a support frame 2 (11) are respectively provided on both sides of the bottom of the casing (1) corresponding to the positions of the feed hopper (6) and the discharge port (5), and the height of the support frame 1 (10) is lower than that of the support frame 2 (11).

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