Automatic micro-sand medium feeding device for water softening treatment

Abstract

This utility model belongs to the field of water treatment technology, specifically providing an automatic micro-sand media dosing device for water softening treatment. It includes a storage tank, a weighing component, a mixing tank, and a micro-sand dosing pump. The storage tank stores a certain amount of micro-sand media. When micro-sand media needs to be added to the solid-liquid separation equipment, the unloader is activated, causing the micro-sand media in the receiving chamber to fall from the bottom discharge port into the weighing cylinder below. A weighing sensor measures the weight of the weighing cylinder in real time. When the weight measured by the weighing sensor reaches a set value, the unloader stops unloading. The discharge valve opens, allowing the micro-sand media in the weighing cylinder to enter the mixing tank below from the discharge port. A stirring mechanism mixes the water and micro-sand media in the mixing tank evenly, and finally, the micro-sand dosing pump delivers it to the solid-liquid separation equipment. This design achieves automatic and quantitative addition of micro-sand media, avoiding inconsistent sedimentation effects caused by uneven dosing.

Description

Technical Field

[0001] This application belongs to the field of water treatment technology, and more specifically, relates to an automatic dosing device for micro-sand media for water softening treatment. Background Technology

[0002] Water softening is a process that involves adding agents such as sodium hydroxide or sodium carbonate to water to cause calcium ions in the water to form calcium carbonate particles, which are then separated by solid-liquid separation equipment, ultimately reducing the hardness of the water.

[0003] Common solid-liquid separation equipment includes sedimentation tanks. Wastewater after crystallization and granulation is transported to these tanks, where calcium carbonate particles and other flocs settle to the bottom under gravity. Conventional sedimentation tanks have a large footprint and slow settling rates. To improve sedimentation efficiency, existing technologies employ micro-sand media to accelerate sedimentation. The basic principle of micro-sand sedimentation is to add high-density micro-sand particles to the tank during the solid coagulation stage. The gravity settling of the micro-sand media and the adsorption effect of the flocs accelerate the sedimentation of the flocs, resulting in a higher sedimentation rate.

[0004] Microsand media consists of fine granular solids. In existing technologies, microsand media is usually added by transporting it along with wastewater from the inlet pipe to the solid-liquid separation equipment. The transport of microsand media is controlled by a screw feeder, which does not allow for precise control of the dosage, resulting in inconsistent sedimentation effects. Utility Model Content

[0005] Based on the above-mentioned technical problems, this application provides an automatic micro-sand media dosing device for water softening treatment, so as to solve the technical problem that the dosing amount of micro-sand media in the prior art is not accurate enough.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide an automatic micro-sand media dosing device for water softening treatment, comprising:

[0007] The storage box has an internal cavity for holding micro-sand media, and the bottom of the cavity is provided with a discharge port. The discharge port is provided with a discharge device, and the bottom of the discharge device is provided with a discharge outlet.

[0008] The weighing assembly includes a weighing sensor, a weighing cylinder, and a discharge valve. The weighing cylinder is located below the discharge port. The top of the weighing cylinder has a first inlet corresponding to the discharge port. The bottom of the weighing cylinder has a discharge port. The weighing sensor is connected to the weighing cylinder and is used to weigh the weighing cylinder. The discharge valve is located at the discharge port and is used to control the opening or closing of the discharge port.

[0009] A mixing tank, located below the discharge valve, has a second inlet corresponding to the discharge valve. The mixing tank has a water inlet and an outlet, and an internal stirring mechanism.

[0010] A micro-sand dosing pump is located on one side of the mixing tank. The inlet of the micro-sand dosing pump is connected to the outlet, and the outlet of the micro-sand dosing pump is connected to the micro-sand conveying pipeline.

[0011] In one possible implementation, the automatic micro-sand media dosing device for water softening treatment further includes a feeding component for conveying micro-sand media into the receiving cavity.

[0012] In one possible implementation, the feeding assembly is a screw conveyor, which is inclined in the vertical direction. The lower end of the screw conveyor is the feeding end, which has a feeding funnel, and the upper end of the screw conveyor is the discharging end, which is connected to the receiving cavity.

[0013] In one possible implementation, the unloader is a star-shaped unloader.

[0014] In one possible implementation, the cross-section of the bottom of the receiving cavity is funnel-shaped, gradually narrowing from top to bottom, and the discharge port is located at the very bottom of the receiving cavity.

[0015] In one possible implementation, the weighing sensor is a cantilever beam weighing sensor, with one end fixed and the other end connected to the weighing cylinder.

[0016] In one possible implementation, a first corrugated pipe is connected between the first inlet and the discharge port.

[0017] In one possible implementation, the discharge valve includes:

[0018] A valve plate is rotatably connected to the side wall of the discharge port; and

[0019] The telescopic rod is rotatably connected at one end to the valve plate and at the other end to the weighing cylinder.

[0020] In one possible implementation, the weighing component further includes:

[0021] The collecting hopper is a funnel-shaped component, wider at the top and narrower at the bottom. The upper part of the collecting hopper surrounds the outer periphery of the weighing cylinder, and the lower part of the collecting hopper is located above the second feed inlet.

[0022] A dustproof plate is placed on top of the collecting hopper to seal the annular space between the inner wall of the collecting hopper and the outer wall of the weighing cylinder.

[0023] In one possible implementation, a second corrugated pipe is connected between the lower part of the collecting hopper and the second feed inlet.

[0024] Compared with the prior art, the beneficial effects of the automatic micro-sand media dosing device for water softening treatment provided in this application are:

[0025] This application provides an automatic micro-sand media dosing device for water softening treatment, comprising a storage tank, a weighing component, a mixing tank, and a micro-sand dosing pump. The storage tank stores a certain amount of micro-sand media. When micro-sand media needs to be added to the solid-liquid separation equipment, the unloading device is activated, causing the micro-sand media in the receiving chamber to fall from the bottom discharge port into the weighing cylinder below. A weighing sensor measures the weight of the weighing cylinder in real time. When the weight measured by the weighing sensor reaches a set value, the unloading device stops unloading. The discharge valve opens, allowing the micro-sand media in the weighing cylinder to enter the mixing tank below from the discharge port. A stirring mechanism can mix the water and micro-sand media in the mixing tank evenly. Finally, the micro-sand dosing pump transports the water mixed with micro-sand media to the solid-liquid separation equipment through a micro-sand conveying pipeline. This setup achieves automatic and quantitative addition of micro-sand media, avoiding inconsistent sedimentation effects caused by uneven dosing. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 Schematic diagram of the structure of the automatic micro-sand media dosing device for water softening treatment provided in this application Figure 1 ;

[0028] Figure 2 Schematic diagram of the structure of the automatic micro-sand media dosing device for water softening treatment provided in this application Figure 2 ;

[0029] Figure 3 A longitudinal sectional view of the automatic micro-sand media dosing device for water softening treatment provided in this application;

[0030] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0031] Figure 5 This is an exploded view of the weighing component assembly in this application;

[0032] Explanation of reference numerals in the attached figures:

[0033] 10. Storage bin; 11. Discharge port; 12. Unloader; 121. Discharge port; 20. Weighing assembly; 21. Weighing sensor; 22. Weighing cylinder; 23. Drop valve; 231. Valve plate; 232. Telescopic rod; 24. First corrugated pipe; 25. Collection hopper; 26. Dustproof plate; 27. Second corrugated pipe; 30. Mixing box; 31. Stirring mechanism; 32. Second feed inlet; 40. Micro-sand dosing pump; 50. Screw conveyor; 51. Feed funnel. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0039] Please refer to the following: Figures 1 to 5 The automatic micro-sand media dosing device for water softening treatment provided in the embodiments of this application will be described below.

[0040] Please see Figure 1 , Figure 2 and Figure 3 This application provides an automatic micro-sand media dosing device for water softening treatment, including a storage tank 10, a weighing assembly 20, a mixing tank 30, and a micro-sand dosing pump 40. The storage tank 10 has an internal cavity for holding the micro-sand media, with a discharge port 11 at the bottom. The discharge port 11 has a discharge device 12, with a discharge outlet 121 at its bottom. The weighing assembly 20 includes a weighing sensor 21, a weighing cylinder 22, and a discharge valve 23. The weighing cylinder 22 is located below the discharge outlet 121. The top of the weighing cylinder 22 has a first inlet corresponding vertically to the discharge outlet 121, and the bottom of the weighing cylinder 22 has a discharge outlet. The weighing sensor 21 and the weighing cylinder 22 are connected. The cylinder 22 is connected for weighing the symmetrical weighing cylinder 22. The discharge valve 23 is located at the discharge port and is used to control the opening or closing of the discharge port. The mixing box 30 is located below the discharge valve 23 and has a second inlet 32 ​​corresponding to the discharge valve 23. The mixing box 30 has a water inlet and a water outlet. The mixing box 30 is equipped with a stirring mechanism 31 inside. The micro-sand dosing pump 40 is located on one side of the mixing box 30. The water inlet of the micro-sand dosing pump 40 is connected to the water outlet, and the water outlet of the micro-sand dosing pump 40 is used to connect to the micro-sand conveying pipeline.

[0041] Compared with the prior art, the beneficial effects of the automatic micro-sand media dosing device for water softening treatment provided in this application embodiment are:

[0042] This application provides an automatic micro-sand media dosing device for water softening treatment, comprising a storage tank 10, a weighing assembly 20, a mixing tank 30, and a micro-sand dosing pump 40. The storage tank 10 stores a certain amount of micro-sand media. When micro-sand media needs to be added to the solid-liquid separation equipment, the unloader 12 is activated to allow the micro-sand media in the receiving chamber to fall from the discharge port 121 at the bottom into the weighing cylinder 22 below. The weighing sensor 21 measures the weight of the weighing cylinder 22 in real time. When the weight measured by the weighing sensor 21 reaches a set value, the unloader 12 stops unloading. The discharge valve 23 opens, allowing the micro-sand media in the weighing cylinder 22 to enter the mixing tank 30 below from the discharge port. The stirring mechanism 31 can mix the water and micro-sand media in the mixing tank 30 evenly. Finally, the micro-sand dosing pump 40 transports the water mixed with micro-sand media to the solid-liquid separation equipment through the micro-sand conveying pipeline. This setup enables automatic and quantitative addition of the micro-sand medium, preventing waste due to excessive addition and slow sedimentation due to insufficient addition, thus avoiding inconsistent sedimentation results caused by uneven addition.

[0043] The storage bin 10 is used to store micro-abrasive media. It is constructed from welded metal plates and can be secured with structural steel supports. The storage bin 10 can be square, cylindrical, or other common shapes. A discharge device 12 is located at the bottom of the storage bin 10, which controls the discharge of the micro-abrasive media. The discharge device 12 can be any commercially available type, such as a rotary valve, screw conveyor, or slide gate valve, suitable for discharging and conveying small particles.

[0044] The unloader 12 has a discharge port 121 at its bottom, and a weighing component 20 is located below the discharge port 121 to measure the weight of the falling micro-sand media. The weighing component 20 specifically includes a weighing cylinder 22, a weighing sensor 21, and a discharge valve 23. The weighing cylinder 22 has a cylindrical structure, and its opening and closing are controlled by the discharge valve 23 at its bottom. The weighing sensor 21 is mounted on a fixed bracket and can monitor the weight of the weighing cylinder 22 and the micro-sand media inside.

[0045] In use, the operator can input the weight of the micro-sand medium to be added through the controller. Then, the unloader 12 starts unloading. When the weighing sensor 21 detects that the weight of the weighing cylinder 22 has reached the set value of the controller, the unloader 12 stops operating. Then, the discharge valve 23 opens, allowing the micro-sand medium to fall into the mixing tank 30 below. The mixing tank 30 is connected to a water source through a water inlet. A certain amount of water is added to the mixing tank 30, and the water and micro-sand medium are mixed evenly by the stirring mechanism 31. Then, it is transported to the solid-liquid separation device through the micro-sand addition pump 40 and the micro-sand conveying pipeline.

[0046] The controller has an operator interface and can control the operation of equipment such as the unloader 12, weighing sensor 21, discharge valve 23, and micro-sand dosing pump 40 through a PLC control program. The PLC program control method is a common control method in the electromechanical field, which can be understood and implemented by those skilled in the art.

[0047] Understandably, when the weight of the micro-sand medium to be added is relatively heavy, it can be added in multiple batches to avoid overloading and damaging the weighing sensor 21 or the stirring mechanism 31.

[0048] The weighing sensor 21, the material discharge valve 23, and the micro-sand dosing pump 40 can all be selected from existing mature products on the market. There are no restrictions on their specific specifications and models. Users can choose according to their actual situation.

[0049] The mixing tank 30 contains a stirring mechanism 31, which is driven by a motor. The stirring mechanism 31 has a stirring rod or blades, and its rotation agitates the water, ensuring a uniform mixture of the micro-sand medium and water. The outlet of the micro-sand conveying pipe can be connected to a water distribution mechanism to evenly distribute the water containing the micro-sand medium into the sedimentation tank. When the sedimentation tank is large, multiple water distribution mechanisms can be installed, or the water distribution mechanism can be designed to be movable. Water distribution mechanisms, such as common nozzles, are existing technology and will not be described in detail here.

[0050] The micro-sand dosing pump 40 is used to transport water containing micro-sand media, specifically existing water pumps such as slurry pumps.

[0051] Please see Figure 1 and Figure 2 The automatic dosing device for micro-sand media used in water softening treatment also includes a feeding component, which is used to deliver micro-sand media into the receiving cavity.

[0052] The feeding assembly is a bucket elevator, a belt conveyor, or a screw conveyor 50. When the feeding assembly is a screw conveyor 50, the screw conveyor 50 is inclined in the vertical direction. The lower end of the screw conveyor 50 is the feeding end, which has a feeding funnel 51. The upper end of the screw conveyor 50 is the discharging end, which is connected to the receiving cavity.

[0053] Micro-sand media is usually packaged in bags. During feeding, the bag is opened, and the micro-sand media is poured from the bag's outlet into the feed funnel 51. The spiral blades inside the screw conveyor 50 transport the micro-sand media to the storage tank 10. The storage tank 10 can be a closed metal box that is waterproof and moisture-proof.

[0054] Please see Figure 3 The cross-section of the bottom of the receiving cavity is funnel-shaped, gradually narrowing from top to bottom. The discharge port 11 is located at the bottom of the receiving cavity, which can prevent the material from accumulating at the bottom and facilitate unloading.

[0055] Please see Figure 2 , Figure 4 and Figure 5 The load cell 21 is a cantilever beam load cell 21. One end of the cantilever beam load cell 21 is fixedly connected to the fixed bracket, and the other end is connected to the weighing cylinder 22.

[0056] Because micro-sand media particles are small and lightweight, dust may be generated during unloading. To address this dust issue, please refer to [link / reference needed]. Figures 1 to 4A first corrugated pipe 24 is connected between the first feed inlet and the discharge outlet 121. The first corrugated pipe 24 is a flexible hose, which connects the first feed inlet and the discharge outlet 121 to prevent dust from spreading to the outside when the unloader 12 discharges material. The first corrugated pipe 24 is a flexible pipe and is lightweight. It does not act as a load-bearing component between the weighing cylinder 22 and the unloader 12. Therefore, it has little interference with the weighing sensor 21 and can be ignored. It does not affect the weighing sensor 21's ability to weigh the micro-sand medium.

[0057] Please see Figure 4 and Figure 5 The discharge valve 23 includes a valve plate 231 and a telescopic rod 232. The valve plate 231 is rotatably connected to the side wall of the discharge port; one end of the telescopic rod 232 is rotatably connected to the valve plate 231, and the other end is rotatably connected to the weighing cylinder 22. The extension and retraction of the telescopic rod 232 can drive the valve plate 231 to rotate, thereby controlling the opening or closing of the discharge port.

[0058] Optionally, the opening direction of the material discharge port can be horizontal or... Figure 5 As shown, the discharge port is inclined. When the opening direction of the discharge port is inclined at a certain angle to the horizontal plane, the valve plate 231 only needs to rotate a small angle to open the discharge port, making the action more rapid. The telescopic rod 232 can be driven by electric, pneumatic or other methods.

[0059] Please see Figure 3 , Figure 4 and Figure 5 The weighing assembly 20 also includes a collection hopper 25 and a dustproof plate 26. The collection hopper 25 is a funnel-shaped component that is wider at the top and narrower at the bottom. The upper part of the collection hopper 25 surrounds the outer periphery of the weighing cylinder 22, and the lower part of the collection hopper 25 is located above the second feed inlet 32. The dustproof plate 26 is covered on the top of the collection hopper 25 and is used to seal the annular space between the inner wall of the collection hopper 25 and the outer wall of the weighing cylinder 22. The dustproof plate 26 has a clearance hole for the telescopic rod 232 to pass through, ensuring that the telescopic rod 232 can extend and retract normally.

[0060] The collecting hopper 25 is used to collect the fine sand media discharged from the discharge port and guide it to the second feed port 32. The top of the collecting hopper 25 is equipped with an annular dustproof plate 26 to prevent dust from spreading. The lower part of the collecting hopper 25 is connected to the second feed port 32 by a second corrugated pipe 27, which also serves to prevent dust from spreading to the outside.

[0061] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic dosing device for micro-sand media in water softening treatment, characterized in that, include: The storage box (10) has an internal cavity for containing micro-sand media. The bottom of the cavity is provided with a discharge port (11). The discharge port (11) is provided with a discharge device (12). The bottom of the discharge device (12) is provided with a discharge port (121). The weighing assembly (20) includes a weighing sensor (21), a weighing cylinder (22), and a discharge valve (23). The weighing cylinder (22) is located below the discharge port (121). The top of the weighing cylinder (22) has a first inlet corresponding to the discharge port (121) vertically. The bottom of the weighing cylinder (22) has a discharge port. The weighing sensor (21) is connected to the weighing cylinder (22) and is used to weigh the weighing cylinder (22). The discharge valve (23) is located at the discharge port and is used to control the opening or closing of the discharge port. A mixing tank (30) is located below the discharge valve (23) and has a second inlet (32) corresponding vertically to the discharge valve (23). The mixing tank (30) has a water inlet and a water outlet. A stirring mechanism (31) is provided inside the mixing tank (30). A micro-sand dosing pump (40) is located on one side of the mixing tank (30). The inlet of the micro-sand dosing pump (40) is connected to the outlet, and the outlet of the micro-sand dosing pump (40) is connected to the micro-sand conveying pipeline.

2. The automatic microsand medium feeding device for water softening treatment according to claim 1, characterized in that, The automatic micro-sand media dosing device for water softening treatment also includes a feeding component, which is used to deliver micro-sand media into the receiving cavity.

3. The automatic microsand media feeding device for water softening treatment according to claim 2, characterized in that, The feeding assembly is a screw conveyor (50), which is inclined in the vertical direction. The lower end of the screw conveyor (50) is the feeding end, which has a feeding funnel (51). The upper end of the screw conveyor (50) is the discharging end, which is connected to the receiving cavity.

4. The automatic microsand media feeding device for water softening treatment according to claim 1, characterized in that, The unloader (12) is a star-shaped unloader (12).

5. The automatic microsand media feeding device for water softening treatment according to claim 1, characterized in that, The bottom cross-section of the receiving cavity is funnel-shaped, gradually narrowing from top to bottom, and the discharge port (11) is located at the bottom of the receiving cavity.

6. The automatic microsand media feeding device for water softening treatment according to claim 1, characterized in that, The weighing sensor (21) is a cantilever beam weighing sensor (21), with one end of the cantilever beam weighing sensor (21) fixed and the other end connected to the weighing cylinder (22).

7. The automatic microsand media feeding device for water softening treatment according to claim 1, characterized in that, A first corrugated pipe (24) is connected between the first feed port and the discharge port (121).

8. The automatic microsand media feeding device for water softening treatment according to claim 1, characterized in that, The discharge valve (23) includes: Valve plate (231) is rotatably connected to the side wall of the discharge port; and The telescopic rod (232) is rotatably connected at one end to the valve plate (231) and at the other end to the weighing cylinder (22).

9. An automatic micro-sand media dosing device for water softening treatment according to claim 8, characterized in that, The weighing assembly (20) also includes: The collecting hopper (25) is a funnel-shaped component that is wider at the top and narrower at the bottom. The upper part of the collecting hopper (25) surrounds the outer periphery of the weighing cylinder (22), and the lower part of the collecting hopper (25) is located above the second feed inlet (32); and A dustproof plate (26) is placed on top of the collecting hopper (25) to seal the annular space between the inner wall of the collecting hopper (25) and the outer wall of the weighing cylinder (22).

10. The automatic microsand media dosing device for water softening treatment according to claim 9, characterized in that, A second corrugated pipe (27) is connected between the lower part of the collecting hopper (25) and the second feed inlet (32).

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