A sand filter device for producing ultra-pure water

By introducing a sand top leveling component and an elastic sliding component into the sand filtration equipment, the problem of uneven sand top is solved, improving the sand's performance and filtration efficiency, and facilitating the unblocking of the sand discharge port.

CN224388156UActive Publication Date: 2026-06-23JIANGSU TELI INTELLIGENT EQUIP TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TELI INTELLIGENT EQUIP TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-23

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    Figure CN224388156U_ABST
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Abstract

The utility model discloses a sand filter equipment for producing ultra -pure water filter, related to sand filter equipment technical field, including: sand filter drum, sand filter drum's top is equipped with filter sand top flat -laying subassembly, filter sand top flat -laying subassembly is used for rotating and laying flat the top of filter sand, filter sand top flat -laying subassembly includes mounting seat, speed reducer, rotation axis, connecting block and flat -laying plate, the mounting seat is installed at the top of sand filter drum, the speed reducer is installed at the output of mounting seat, the output of speed reducer is installed with rotation axis, and rotation axis is located in the inside of sand filter drum, the connecting block is installed at the bottom of rotation axis, the flat -laying plate is installed at both sides of connecting block. In the utility model, because the height of flat -laying plate is located in the inside of filter sand top, through rotating, the place that filter sand top is not even can be rotated and laid flat, can improve the use effect of filter sand.
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Description

Technical Field

[0001] This utility model relates to the technical field of sand filtration equipment, specifically a sand filtration equipment for producing ultrapure water. Background Technology

[0002] Ultrapure water production involves a filtration process, which requires the use of sand filtration equipment. Depending on the quality of the source water and the requirements of the effluent, the filter media for sand filtration equipment is specially selected. Common filter media include: volcanic alumina, quartz sand, anthracite, activated carbon, and other contact reaction media.

[0003] Patent document CN214115282U discloses an activated biological sand filtration device, "including a filtration tank, a filter layer disposed within the filtration tank, and an activated sand filtration body disposed within the filtration tank; the activated sand filtration body includes a sand lifting pipe extending from the bottom to the top of the filtration tank, a sand lifter disposed at the end of the sand lifting pipe near the bottom of the filtration tank, and a sand washer disposed at the end of the sand lifting pipe near the top of the filtration tank; it also includes a stirring assembly disposed within the filtration tank, the stirring assembly including a rotating cylinder sleeved outside the sand lifting pipe and rotatably connected to the sand lifting pipe, several undulating rods fixedly connected to the end of the rotating cylinder near the bottom of the filtration tank, and a driving assembly located at the end of the rotating cylinder near the top of the filtration tank and driving the rotating cylinder to rotate, the rotating cylinder extending from the top to the bottom of the filtration tank. This application utilizes the stirring assembly to promote the dispersion and flow of sludge and sand, improve the sand lifting efficiency of the sand lifter, and thus improve the treatment efficiency of sludge and sand at the bottom of the filtration tank." However, when adding filter sand into this sand filtration device, the top of the filter sand is prone to becoming uneven after addition, resulting in a significant reduction in the effectiveness of the filter sand.

[0004] In view of this, it is necessary to develop a sand filter for the production of ultrapure water, so that the filter sand can be made more even after it is added to the interior. Summary of the Invention

[0005] The purpose of this utility model is to provide a sand filtration device for producing ultrapure water, in order to solve the technical problem mentioned in the background art that when filter sand is added to the sand filtration device, the top of the filter sand is easily uneven, which greatly reduces the effectiveness of the filter sand.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sand filter device for producing ultrapure water, comprising: a sand filter cylinder, wherein a sand top leveling assembly is installed on the top of the sand filter cylinder, the sand top leveling assembly is used to rotate and level the top of the filter sand, the sand top leveling assembly includes a mounting base, a reduction motor, a rotating shaft, a connecting block, and a leveling plate, the mounting base is installed on the top of the sand filter cylinder, the reduction motor is installed on the output end of the mounting base, the output end of the reduction motor is installed with a rotating shaft, and the rotating shaft is located inside the sand filter cylinder, the connecting block is installed on the bottom end of the rotating shaft, and the leveling plates are symmetrically installed on both sides of the connecting block.

[0007] Preferably, mounting rods are symmetrically installed on the inner wall of the sand filter cylinder. An installation pipe is installed at one end of the mounting rod. Multiple drainage heads are installed through the top of the installation pipe. A connecting pipe is installed at the top of the installation pipe, and the top end of the connecting pipe penetrates the top of the sand filter cylinder. A transmission pipe is installed at the top end of the connecting pipe through a flange.

[0008] Preferably, a sand inlet is installed through the top of the sand filter cylinder, the sand filter cylinder is installed through the front of the observation window, and a water outlet pipe is installed through one side of the top of the sand filter cylinder.

[0009] Preferably, the sand filter cartridge is symmetrically equipped with support legs on both sides, and a controller is installed on one side of each support leg.

[0010] Preferably, a sand discharge port is installed through the bottom of the sand filter cylinder, and symmetrical grooves are opened on the inner wall of the sand discharge port. A slider is slidably fitted inside the groove, and a connecting spring is installed at the top of the slider. The top of the connecting spring is connected to the top inner wall of the groove. A connecting rod is installed on the inner side of the slider, and a movable shaft is installed at one end of the connecting rod. The movable shaft is located at the center of the sand discharge port.

[0011] Preferably, a closing plug is threaded onto the bottom of the sand discharge port.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model provides an installation position for the top leveling component of the filter sand in the medium sand filter cartridge. The reduction motor in the top leveling component is installed through the mounting base. After being powered on, the reduction motor converts electrical energy into kinetic energy, thereby driving the rotating shaft to rotate. The rotating shaft is connected to the leveling plate through the connecting block, so that the leveling plate can rotate under the drive of the rotating shaft. Since the height of the leveling plate is located inside the top of the filter sand, the uneven area on the top of the filter sand can be rotated and leveled by rotation, thereby improving the use effect of the filter sand.

[0014] 2. In this utility model, a movable shaft is installed inside the sand discharge port through an elastic sliding assembly. The slider in the elastic sliding assembly is T-shaped and fitted inside the slide groove, allowing the slider to slide inside the slide groove. Then, under the connection of the connecting spring, the slider can return to its original position after sliding, so that the movable shaft connected by the connecting rod can move up and down elastically at the center position of the sand discharge port. If the sand discharge port is blocked, it can be cleared by the movement of the movable shaft. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the sand filter cartridge of this utility model;

[0017] Figure 3 This is a schematic diagram of the plank structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the sand discharge port structure of this utility model.

[0019] In the diagram: 1. Sand filter cartridge; 2. Support leg; 3. Controller; 4. Observation window; 5. Mounting rod; 6. Mounting pipe; 7. Drain head; 8. Connecting pipe; 9. Transmission pipe; 10. Water outlet pipe; 11. Sand inlet; 12. Mounting base; 13. Gear motor; 14. Rotating shaft; 15. Connecting block; 16. Laying plate; 17. Sand discharge port; 18. Slide groove; 19. Sliding block; 20. Connecting spring; 21. Connecting rod; 22. Movable shaft; 23. Closing plug. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Please see Figures 1-4 A sand filter device used for producing ultrapure water;

[0024] A sand filter cartridge 1 is equipped with a sand top leveling assembly. The sand top leveling assembly is used to rotate and level the top of the sand. The sand top leveling assembly includes a mounting base 12, a reduction motor 13, a rotating shaft 14, a connecting block 15, and a paving plate 16. The mounting base 12 is installed on the top of the sand filter cartridge 1. The reduction motor 13 is installed at the output end of the mounting base 12. The output end of the reduction motor 13 is equipped with the rotating shaft 14, and the rotating shaft 14 is located inside the sand filter cartridge 1. The connecting block 15 is installed at the bottom end of the rotating shaft 14, and the paving plate 16 is symmetrically installed on both sides of the connecting block 15.

[0025] The interior of the sand filter cartridge 1 is used to store the filter medium. When the liquid to be filtered enters the sand filter cartridge 1, it can be filtered through the internal filter medium. The filter sand enters the interior of the sand filter cartridge 1 through the sand inlet 11. The sand filter cartridge 1 provides an installation position for the top leveling component of the filter sand. The geared motor 13 in the top leveling component of the filter sand is installed through the mounting base 12. After being powered on, the geared motor 13 converts electrical energy into kinetic energy, thereby driving the rotating shaft 14 to rotate. The rotating shaft 14 is connected to the leveling plate 16 through the connecting block 15, so that the leveling plate 16 can rotate under the drive of the rotating shaft 14. Since the height of the leveling plate 16 is located inside the top of the filter sand, the uneven parts of the top of the filter sand can be rotated and leveled by rotation, thereby improving the use effect of the filter sand.

[0026] Installation rods 5 are symmetrically installed on the inner wall of the sand filter cartridge 1. An installation pipe 6 is installed at one end of the installation rod 5. Multiple drain heads 7 are installed through the top of the installation pipe 6. A connecting pipe 8 is installed at the top of the installation pipe 6, and the top end of the connecting pipe 8 penetrates the top of the sand filter cartridge 1. A transmission pipe 9 is installed at the top end of the connecting pipe 8 through a flange.

[0027] Mounting rod 5 provides an installation position for mounting pipe 6, which in turn provides a position for installing drain head 7. The liquid to be processed enters the interior of connecting pipe 8 through transmission pipe 9. When installing, connecting pipe 8 is fitted to the inner wall of one side of sand filter cartridge 1 to avoid affecting the rotation of the laying plate 16. The liquid entering the connecting pipe 8 enters the interior of mounting pipe 6 and is finally discharged through drain head 7. The discharged liquid is filtered through the internal filter sand.

[0028] A sand inlet 11 is installed through the top of the sand filter cylinder 1, the sand filter cylinder 1 is installed through the front of the observation window 4, and a water outlet pipe 10 is installed through one side of the top of the sand filter cylinder 1.

[0029] The sand inlet 11 provides space for the filter sand to be added into the sand filter cylinder 1. The observation window 4 is used to observe the position of the filter sand inside the sand filter cylinder 1. The filtered liquid is discharged through the water outlet pipe 10.

[0030] Support legs 2 are symmetrically installed on both sides of the sand filter cartridge 1, and a controller 3 is installed on one side of the support legs 2;

[0031] The controller 3 is used to control the use of the geared motor 13, and the support leg 2 is made of stainless steel and is used to support the sand filter cartridge 1.

[0032] A sand discharge port 17 is installed through the bottom of the sand filter cylinder 1. A sliding groove 18 is symmetrically opened on the inner wall of the sand discharge port 17. A slider 19 is slidably fitted inside the sliding groove 18. A connecting spring 20 is installed at the top of the slider 19, and the top of the connecting spring 20 is connected to the top inner wall of the sliding groove 18. A connecting rod 21 is installed on the inner side of the slider 19. A movable shaft 22 is installed at one end of the connecting rod 21, and the movable shaft 22 is located at the center of the sand discharge port 17.

[0033] The sand discharge port 17 provides space for the discharge of filtered sand after use. Inside the sand discharge port 17, a movable shaft 22 is installed through an elastic sliding assembly. The slider 19 in the elastic sliding assembly is T-shaped and fitted inside the slide groove 18, allowing the slider 19 to slide inside the slide groove 18. Then, under the connection of the connecting spring 20, the slider 19 can return to its original position after sliding, so that the movable shaft 22 connected by the connecting rod 21 can move up and down elastically at the center position of the sand discharge port 17. If the sand discharge port 17 is blocked, it can be cleared by the movement of the movable shaft 22.

[0034] A closing plug 23 is threaded at the bottom of the sand discharge port 17;

[0035] The bottom inner wall of the sand discharge port 17 is provided with an internal thread that is threaded to the closing plug 23, so that the closing plug 23 can be threaded onto the bottom end of the sand discharge port 17 to close it.

[0036] Working principle: First, the filter device is supported in the required position by the support leg 2. Filter sand is added into the sand filter cylinder 1 through the sand inlet 11. The position of the filter sand can be observed through the observation window 4. After the filter sand is added, the top of the filter sand is rotated and flattened by the filter sand top leveling component. The liquid to be filtered enters the interior of the connecting pipe 8 through the transmission pipe 9. Finally, the liquid is discharged through the drain head 7. The discharged liquid moves upward through the bottom of the filter sand. During the movement, it contacts the filter sand for filtration. Finally, it is discharged through the water outlet pipe 10.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sand filter for producing ultrapure water, characterized in that, Includes: a sand filter cartridge (1), the top of which is equipped with a sand top leveling assembly, which is used to rotate and level the top of the sand. The sand top leveling assembly includes a mounting base (12), a reduction motor (13), a rotating shaft (14), a connecting block (15), and a paving plate (16). The mounting base (12) is installed on the top of the sand filter cartridge (1), the reduction motor (13) is installed at the output end of the mounting base (12), the output end of the reduction motor (13) is equipped with the rotating shaft (14), and the rotating shaft (14) is located inside the sand filter cartridge (1). The connecting block (15) is installed at the bottom end of the rotating shaft (14), and the paving plate (16) is symmetrically installed on both sides of the connecting block (15).

2. A sand filter for producing ultrapure water according to claim 1, characterized in that: The sand filter cylinder (1) is symmetrically equipped with mounting rods (5), one end of which is equipped with a mounting pipe (6). Multiple drain heads (7) are installed through the top of the mounting pipe (6). A connecting pipe (8) is installed at the top of the mounting pipe (6), and the top end of the connecting pipe (8) penetrates the top of the sand filter cylinder (1). A transmission pipe (9) is installed at the top end of the connecting pipe (8) through a flange.

3. A sand filter for producing ultrapure water according to claim 2, characterized in that: The top of the sand filter cylinder (1) is provided with a sand inlet (11), the sand filter cylinder (1) is provided with a viewing window (4) on the front, and a water outlet pipe (10) is provided with a top side of the sand filter cylinder (1).

4. A sand filter for producing ultrapure water according to claim 3, characterized in that: The sand filter cylinder (1) is symmetrically equipped with support legs (2) on both sides, and a controller (3) is installed on one side of the support legs (2).

5. A sand filter for producing ultrapure water according to claim 4, characterized in that: The bottom of the sand filter cylinder (1) is provided with a sand discharge port (17). The inner wall of the sand discharge port (17) is symmetrically provided with a sliding groove (18). A slider (19) is slidably fitted inside the sliding groove (18). A connecting spring (20) is installed at the top of the slider (19), and the top of the connecting spring (20) is connected to the top inner wall of the sliding groove (18). A connecting rod (21) is installed on the inner side of the slider (19). A movable shaft (22) is installed at one end of the connecting rod (21), and the movable shaft (22) is located at the center of the sand discharge port (17).

6. A sand filter for producing ultrapure water according to claim 5, characterized in that: A closing plug (23) is threaded onto the bottom of the sand discharge port (17).