Active sand filter for raw water treatment
By using components such as water dispensers and sand tiles in the raw water treatment active sand filter, the cleaning and turning of active sand is achieved. Combined with the collection box and filter net, the problem of reducing the filtration effect caused by saturation of active sand is solved, and the filter tank is improved Cleanliness and water purification effect.
Patent Information
- Application Number
- CN202421007921.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-10
AI Technical Summary
In raw water treatment, the activated sand filter will gradually saturate and adsorb impurities and pollutants after a long time of use, resulting in a reduced filtration effect.
A raw water treatment active sand filter was designed, which contained a water cloth and a sand flip board. The active sand was flushed and turned by cleaning the water flow, combined with a collection box and a filter net to achieve effective cleaning of the active sand and impurity collection. The cleaning brush was used for Clean the inner wall of the filter.
It improves the cleaning effect of active sand, extends its service life, maintains the cleanliness and unobstructed filters, and enhances the water purification effect.
Smart Images
Figure CN222286670U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of activated sand filter tanks, in particular to an activated sand filter tank for raw water treatment. Background Art
[0002] The use of activated sand filters in raw water treatment is usually to remove suspended matter, color, odor, organic matter and heavy metals in the water. Activated sand filters are a common water treatment equipment. Their working principle is to filter water through an activated sand bed, using activated sand to adsorb and filter impurities and pollutants in the water, thereby improving water quality. When using activated sand filters in raw water treatment, the general operating steps require that before sending water into the activated sand filter, pretreatment may be required, such as filtering screens, sedimentation or adding chemicals to remove large particles of impurities, suspended matter or turbidity in the water; and regular inspection of the working status of the activated sand filter, including the condition of the filter material, the purification effect of the water quality, and the pressure of the filter, and replacement or maintenance of the filter material if necessary. .
[0003] At present, in the process of using activated sand to treat raw water, the activated sand will adsorb impurities in the raw water. After using the activated sand for a long time, the activated sand may gradually become saturated with a large amount of impurities and pollutants, resulting in a decrease in its filtering effect. Therefore, it does not meet the existing needs. In this regard, we propose an activated sand filter for raw water treatment. Utility Model Content
[0004] The utility model provides an activated sand filter tank for raw water treatment, which has the beneficial effect of cleaning the activated sand, and solves the problem mentioned in the above background technology that in the process of using the activated sand to treat the raw water, the activated sand will adsorb the impurities in the raw water. After using the activated sand for a long time, the activated sand may gradually become saturated with a large amount of impurities and pollutants, resulting in a decrease in its filtering effect.
[0005] The utility model provides the following technical solutions: an activated sand filter for raw water treatment, comprising a filter body, a water inlet being provided on the side of the filter body, and a water outlet being provided on the bottom side of the filter body, a water distributor for flushing the inside of the activated sand being installed inside the filter body, a sand turning plate for turning the active sand being installed inside the filter body, a collecting box for collecting impurities being installed on the side of the sand turning plate, a rotating rod being installed inside the filter body, the sand turning plate being installed on the bottom side of the rotating rod, a water distribution cylinder for communicating with the water distributor being rotatably installed on the surface of the rotating rod, and a rotating motor for driving the rotating rod being installed on the upper side of the filter body.
[0006] As an optional scheme for an active sand filter tank for raw water treatment described in the utility model, a rotating hole is provided in the middle of the water distribution cylinder, the rotating rod passes through the rotating hole, a connecting pipe for water flow is installed between the water distribution cylinder and the water inlet, and a plurality of water distributors are provided, and the plurality of water distributors are arranged in a circular array on the sides of the water distribution cylinder.
[0007] As an optional scheme for an activated sand filter for raw water treatment described in the utility model, there are two sand-turning plates, which are symmetrically installed on the sides of the rotating rod, and the sides of the sand-turning plates are provided with cleaning brushes that are in rotational contact with the inner wall of the filter body, and one of the sand-turning plates is provided with a pushing plate for pushing the middle part of the active sand, and the collection box is installed on the side of the other sand-turning plate.
[0008] As an optional scheme of an activated sand filter tank for raw water treatment described in the utility model, wherein: the collecting box is configured as a semicircular box, a filter screen is installed at the inlet of the collecting box, and the diameter of the filter screen is smaller than the diameter of the activated sand.
[0009] As an optional solution of an activated sand filter tank for raw water treatment described in the utility model, a support rod is installed on the side of the collecting box, and the support rod is installed on the side of the sand-turning plate by bolts.
[0010] As an optional scheme of an active sand filter tank for raw water treatment described in the utility model, wherein: a plurality of rotating beads are rotatably mounted on the inner wall of the rotating hole, and the rotating beads are rotatably matched with the rotating rod.
[0011] As an optional scheme of an activated sand filter for raw water treatment described in the utility model, a sealing cover is installed on the upper side of the filter body, the rotating motor is installed on the upper side of the sealing cover, and an inlet pipe for raw water to flow in is installed on the side of the filter body.
[0012] The utility model has the following beneficial effects:
[0013] 1. When the raw water treatment activated sand filter is in use, the clean water flows through the water inlet, the water distribution cylinder and the water distributor, so that water can flow into the activated sand during the process of water entering the filter body, so that the clean water can rinse the activated sand, and at the same time, the active sand can be turned over by the cooperation of the rotating rod and the sand turning plate, which can help to evenly distribute the active sand, and at the same time facilitate the contact between the clean water and the activated sand, thereby improving the cleaning effect of the activated sand; when the activated sand is turned over, the active sand and the clean water can be lifted up, so that impurities in the active sand are lifted up in the water, and the impurities lifted up in the water can be collected by the cooperation of the collecting box and the filter net. The scheme has a simple structure and is easy to operate. The cooperation of the collecting box and the sand turning plate can lift the active sand, which is conducive to the impurities in the active sand floating in the clean water, and the floating impurities are collected by the collecting box, thereby improving the cleaning effect of the active sand.
[0014] 2. When the raw water treatment activated sand filter is in use, a cleaning brush is installed on the side of the sand turning plate, and the cleaning brush is in contact with the inner wall of the filter body, so that the cleaning brush can clean the inner wall of the filter body, thereby cleaning the inner wall of the filter while turning the active sand, thereby preventing the accumulation of dirt and sediment as much as possible and keeping the inside of the filter clean and unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.
[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.
[0018] Figure 4 It is a schematic diagram of the enlarged structure of point B of the utility model.
[0019] In the figure: 110, filter tank body; 111, water inlet; 112, water outlet; 120, water distributor; 130, sanding plate; 140, collecting box; 141, filter screen; 150, rotating rod; 160, water distribution cylinder; 161, rotating hole; 162, connecting pipe; 170, rotating motor; 180, cleaning brush; 190, pushing plate; 210, supporting rod; 220, rotating bead; 230, sealing cover; 240, water inlet pipe. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Example 1: This example aims to solve the problem that when using activated sand to filter raw water, the activated sand will absorb impurities in the raw water. After long-term use, the activated sand may gradually become saturated with a large amount of impurities and pollutants, resulting in a decrease in its filtering effect. Please refer to Figure 1-Figure 4 A raw water treatment activated sand filter comprises a filter body 110, a water inlet 111 is provided on the side of the filter body 110, the water inlet 111 is used to enter clean running water, and a water outlet 112 is provided on the bottom side of the filter body 110, a water distributor 120 for flushing the inside of the activated sand is installed inside the filter body 110, a sand turning plate 130 for turning the active sand is installed inside the filter body 110, a collecting box 140 for collecting impurities is installed on the side of the sand turning plate 130, a rotating rod 150 is installed inside the filter body 110, the sand turning plate 130 is installed on the bottom side of the rotating rod 150, a water distribution cylinder 160 for communicating with the water distributor 120 is rotatably installed on the surface of the rotating rod 150, and a rotating motor 170 for driving the rotating rod 150 is installed on the upper side of the filter body 110.
[0022] A rotating hole 161 is provided in the middle of the water distribution cylinder 160, and the rotating rod 150 passes through the rotating hole 161. A connecting pipe 162 for water circulation is installed between the water distribution cylinder 160 and the water inlet 111. There are several water distributors 120, and the several water distributors 120 are arranged in a circular array on the side of the water distribution cylinder 160.
[0023] Two sanding plates 130 are provided, and the two sanding plates 130 are symmetrically installed on the sides of the rotating rod 150 . A pushing plate 190 for pushing the middle part of the active sand is installed on the side of one of the sanding plates 130 , and a collecting box 140 is installed on the side of the other sanding plate 130 .
[0024] A sealing cover 230 is installed on the upper side of the filter tank body 110, and the rotating motor 170 is installed on the upper side of the sealing cover 230. A water inlet pipe 240 for raw water to flow into the side of the filter tank body 110 is installed.
[0025] In this embodiment: when in use, the clean water flows through the water inlet 111, the water distribution cylinder 160 and the water distributor 120, so that water can flow into the active sand during the process of water entering the filter tank body 110, so that the clean water can rinse the active sand, and at the same time, through the cooperation of the rotating rod 150 and the sand turning plate 130, the active sand can be turned over, which can help to evenly distribute the active sand, and at the same time facilitate the contact between the clean water flow and the active sand, thereby improving the cleaning effect of the active sand; when the active sand is turned over, the active sand and the clean water flow can be lifted up, so that impurities in the active sand are lifted up in the water, and the collection box 140 and the filter net 141 are used to cooperate, so that the impurities lifted up in the water can be collected. This solution has a simple structure and is easy to operate. Through the cooperation of the collecting box 140 and the sand turning plate 130, the active sand can be lifted up, which is conducive to the impurities in the active sand floating in the clean water, and the floating impurities are collected by the collecting box 140, thereby improving the cleaning effect of the active sand.
[0026] Embodiment 2: This embodiment is intended to promote the solution of the problem of cleaning the inner wall of the filter tank while turning over the active sand. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1-Figure 4 A cleaning brush 180 is provided on the side of the sand-turning plate 130 and is in rotational contact with the inner wall of the filter tank body 110. The collecting box 140 is provided as a semicircular box. A filter screen 141 is installed at the inlet of the collecting box 140. The diameter of the filter screen 141 is smaller than the diameter of the activated sand, and at the same time, the diameter of the filter screen 141 is larger than the diameter of the organic matter and heavy metals of the impurities.
[0027] A support rod 210 is installed on the side of the collection box 140, and the support rod 210 is installed on the side of the sanding plate 130 by bolts, so as to facilitate the installation and removal of the collection box 140. A plurality of rotating beads 220 are rotatably installed on the inner wall of the rotating hole 161.
[0028] In the present embodiment: when in use, a cleaning brush 180 is installed on the side of the sand turning plate 130, and the cleaning brush 180 is in contact with the inner wall of the filter tank body 110, so that the cleaning brush 180 can clean the inner wall of the filter tank body 110, thereby cleaning the inner wall of the filter tank while turning over the active sand, thereby preventing the accumulation of dirt and sediment as much as possible and keeping the inside of the filter tank clean and unobstructed.
[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. An activated sand filter for raw water treatment, comprising a filter body (110), a water inlet (111) provided on the side of the filter body (110), and a water outlet (112) provided on the bottom of the filter body (110), characterized in that: A water distributor (120) for flushing the active sand is installed inside the filter tank body (110), a sand turning plate (130) for turning the active sand is installed inside the filter tank body (110), a collecting box (140) for collecting impurities is installed on the side of the sand turning plate (130), a rotating rod (150) is installed inside the filter tank body (110), the sand turning plate (130) is installed on the bottom side of the rotating rod (150), a water distribution cylinder (160) for communicating with the water distributor (120) is rotatably installed on the surface of the rotating rod (150), and a rotating motor (170) for driving the rotating rod (150) is installed on the upper side of the filter tank body (110).
2. The activated sand filter for raw water treatment according to claim 1, characterized in that: A rotating hole (161) is provided in the middle of the water distribution cylinder (160), and the rotating rod (150) passes through the rotating hole (161). A connecting pipe (162) for water circulation is installed between the water distribution cylinder (160) and the water inlet (111). A plurality of water distributors (120) are provided, and the plurality of water distributors (120) are arranged in a circular array on the side of the water distribution cylinder (160).
3. The activated sand filter for raw water treatment according to claim 1, characterized in that: Two sand-turning plates (130) are provided, and the two sand-turning plates (130) are symmetrically mounted on the side of the rotating rod (150). The side of the sand-turning plate (130) is provided with a cleaning brush (180) that is in rotational contact with the inner wall of the filter tank body (110). A pushing plate (190) for pushing the middle part of the active sand is installed on the side of one of the sand-turning plates (130), and the collecting box (140) is installed on the side of the other sand-turning plate (130).
4. The activated sand filter for raw water treatment according to claim 1, characterized in that: The collecting box (140) is configured as a semicircular box, and a filter screen (141) is installed at the inlet of the collecting box (140), wherein the diameter of the filter screen (141) is smaller than the diameter of the active sand.
5. The activated sand filter for raw water treatment according to claim 1, characterized in that: A support rod (210) is installed on the side of the collection box (140), and the support rod (210) is installed on the side of the sanding plate (130) by means of bolts.
6. The activated sand filter for raw water treatment according to claim 2, characterized in that: A plurality of rotating beads (220) are rotatably mounted on the inner wall of the rotating hole (161), and the rotating beads (220) are rotatably matched with the rotating rod (150).
7. The activated sand filter for raw water treatment according to claim 1, characterized in that: A sealing cover (230) is installed on the upper side of the filter tank body (110), the rotating motor (170) is installed on the upper side of the sealing cover (230), and a water inlet pipe (240) for raw water to flow into is installed on the side of the filter tank body (110).