Water purifying device for removing heavy metals

Abstract

The utility model provides a water purification device for removing heavy metals, which comprises a shell, a detachable upper cover and a water purification unit positioned in the shell, a water inlet mechanism and a water drainage mechanism are arranged on the upper cover, the water inlet mechanism is of a hollow cylindrical structure with a blind hole in the bottom, and a through hole is formed in the top of the water inlet mechanism and communicated with the outside. The portion, at the lower end of the upper cover, of the water inlet mechanism is connected with the water purification unit, a plurality of hole structures are formed in the pipe wall, connected with the water purification unit, of the water inlet mechanism, and the water purification unit comprises a filtering area and a detachable adsorption area. The filter material of the filter area is of a sheet structure when being unfolded, one side of the filter material is connected with the water inlet mechanism and is wound by taking the water inlet mechanism as the center to form a cylinder structure with upper and lower sealing and side water inlet; the adsorption area is of an annular structure loaded with a molecular sieve and is positioned outside the filter area. The device can be used for removing harmful heavy metals, retaining beneficial trace elements in water and realizing a backwashing function, and is simple and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a water purification device for removing heavy metals. Background Art

[0002] Heavy metals refer to metals with a specific gravity greater than 4 or 5. Common heavy metal pollution mainly refers to environmental pollution caused by heavy metals with significant biological toxicity such as mercury, lead, cadmium, chromium and arsenic. It also includes heavy metals with certain toxicity such as zinc, copper, cobalt, nickel, tin, vanadium, etc.

[0003] Heavy metal pollutants are difficult to control. When they accumulate in water bodies to a certain limit, they will cause serious harm to the water body-aquatic plant-aquatic animal system, and may affect human health through the food chain. Heavy metal wastewater is produced in many production processes in industries such as mining, machinery manufacturing, chemical industry, electronics, and instrumentation. These wastewaters seriously affect the health and even life of children and adults. At present, incidents such as lead poisoning in children, fetal malformations caused by heavy metals, and arsenic poisoning have also occurred frequently, making heavy metal pollution a major environmental issue related to human health and life.

[0004] Common reverse osmosis water purifiers on the market can effectively filter and remove heavy metals in water. Its filtration accuracy can reach up to 0.0001 microns, which can not only remove heavy metals in water, but also filter invisible bacteria and viruses in water, ensuring the cleanliness of water quality. However, when the reverse osmosis water purifier removes harmful heavy metals, it also removes trace elements in the water that are beneficial to the human body. Therefore, it is urgent to develop a water purification device that can not only efficiently remove heavy metals in water but also maintain trace elements. Summary of the invention

[0005] The technical problem solved by the utility model is to overcome the existing defects and provide a water purification device which can simply and efficiently remove harmful heavy metals and retain beneficial trace elements in water.

[0006] In order to solve the above problems, the utility model provides a water purification device for removing heavy metals, comprising a shell, a detachable upper cover and a water purification unit located in the shell, the shell is provided with a cavity inside, the upper cover is provided with a water inlet mechanism and a drainage mechanism, the water inlet mechanism is a hollow cylindrical structure with a blind hole at the bottom, the top of the water inlet mechanism is a through hole connected to the outside, the water inlet mechanism is connected to the water purification unit at the lower end part of the upper cover, a plurality of hole structures are opened on the pipe wall where the water inlet mechanism is connected to the water purification unit, the water purification unit comprises a filtration area and a detachable adsorption area, the filter material of the filtration area is a sheet structure when unfolded and is connected to the water inlet mechanism on one side and is wound around the water inlet mechanism as the center to form a cylindrical structure that is sealed up and down and inlets water from the side, the adsorption area is an annular structure loaded with molecular sieves and is located outside the filtration area.

[0007] Furthermore, the upper cover and the shell are sealed and connected via a snap or thread.

[0008] Furthermore, the adsorption area and the filtration area are connected by threaded sealing connection.

[0009] Furthermore, the filter material of the filtration zone is a non-woven fabric, and the non-woven fabric is loaded with a molecular sieve. By loading the molecular sieve in the non-woven fabric, some heavy metals can be removed in advance.

[0010] Furthermore, the molecular sieve is a natural molecular sieve or a synthetic molecular sieve. The molecular sieve is one or a combination of silicon-aluminum-based, phosphate-based, titanium-silicon-based molecular sieves.

[0011] Furthermore, the adsorption zone is formed by sintering a filler loaded with a molecular sieve or a mixture of a molecular sieve and activated carbon.

[0012] Beneficial effects of the utility model:

[0013] Through this device, the adsorption area formed by sintering the molecular sieve filler can selectively adsorb heavy metal ions to achieve the purpose of removing heavy metals, while retaining the beneficial mineral ions such as calcium, magnesium and zinc in the water. The adsorption unit of the device is set as a detachable structure, which is convenient for flexible selection and assembly of the corresponding filter structure according to the water quality. The filter area is a non-woven filter material loaded with molecular sieve filler, which is wound into a cylindrical structure to form a multi-layer filter structure, so that the water can fully contact with the molecular sieve and remove a large amount of heavy metals in the water in advance. The water purification device is simple in design and has a good water purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the water purification unit in the utility model;

[0016] Figure 3 It is a top view of the water purification unit in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the filter area of ​​the water purification unit in the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the filter material in the filter area of ​​the water purification unit in the utility model;

[0019] Among them, 1 is the water inlet mechanism, 2 is the drainage mechanism, 3 is the upper cover, 4 is the shell, 5 is the adsorption area, 6 is the filtration area, 7 is the adhesive, 8 is the pore structure, and 9 is the water purification unit. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the present invention, 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

[0022] Reference Figure 1-5 A water purification device for removing heavy metals includes a shell 4, a detachable upper cover 3 and a water purification unit 9. A cavity is arranged inside the shell 4. The upper cover 3 is connected to the shell 4 by a threaded seal. A water inlet mechanism 1 and a drainage mechanism 2 are arranged on the upper cover 3. The water inlet mechanism 1 is a hollow cylindrical structure with a blind hole at the bottom and a through hole at the top to communicate with the outside. The water inlet mechanism 1 is connected to the water purification unit 9 at the lower end of the upper cover. A plurality of hole structures 8 are opened on the pipe wall of the water inlet mechanism 1 connected to the water purification unit 9. The water purification unit 9 It includes a filtration area 6 and an adsorption area 5. Both sides of the filter material of the filtration area 6 are coated with an adhesive 7. The base material of the filter material is a non-woven fabric and is loaded with a synthetic silicon-aluminum-based molecular sieve. When the filter material is unfolded, it is a sheet structure and one side is connected to the water inlet mechanism 1 and is wound around the water inlet mechanism 1 to form a cylindrical structure with upper and lower sealing and side water inlet. The adsorption area 5 is an annular structure and is located outside the filtration area. It is sintered with a mixture filler loaded with a 1:1 mixture of molecular sieve and activated carbon; the filtration area 6 and the adsorption area 5 are connected by a threaded seal. Specific embodiment:

[0024] 1. Water purification process:

[0025] When the tap is turned on, the raw water enters the water purification device from the water inlet mechanism 1 through the hole structure 8 and is filtered through the water purification unit 9. The raw water first passes through the filter area 6, which is curled into a cylindrical shape to form a spirally wound flow channel, which can efficiently filter and remove pollutants such as particles, sediment, bacteria, viruses, colloids, and macromolecular organic matter in the water, and then passes through the adsorption area 5, where the filter material loaded with molecular sieves fully adsorbs and removes heavy metals, and finally flows out of the water purification device through the drainage mechanism 2.

[0026] 2. Flushing process:

[0027] When there are too many pollutants in the device causing the filter material to be clogged, reverse flushing can be performed. The specific method is: open the water purification tap, and the purified water enters the water purification device from the drainage mechanism 2. The purified water first flushes the adsorption area 5, and then flushes the filter material in the filtration area 6, peeling off the pollutants attached to the filter material. After flushing, the dirty water is discharged from the device from the water inlet mechanism 1.

[0028] The water purification device can efficiently remove macromolecular pollutants in water, and can retain beneficial trace elements in water while removing harmful heavy metals in water. The device is simple and efficient.

Claims

1. A water purification device for removing heavy metals, characterized in that: The invention comprises a shell (4), a detachable upper cover (3) and a water purification unit (9) located in the shell (4); the upper cover (3) is provided with a water inlet mechanism (1) and a water discharge mechanism (2); the water inlet mechanism (1) is a hollow cylindrical structure with a blind hole at the bottom, the top of the water inlet mechanism is a through hole connected to the outside, the water inlet mechanism (1) is connected to the water purification unit (9) at the lower end of the upper cover, a plurality of hole structures (8) are opened on the pipe wall of the water inlet mechanism (1) connected to the water purification unit (9), the water purification unit (9) comprises a filtration area (6) and a detachable adsorption area (5); the filter material of the filtration area (6) is a sheet-like structure when unfolded, one side of which is connected to the water inlet mechanism (1) and is wound around the water inlet mechanism (1) to form a cylindrical structure with upper and lower sealing and side water inlet; the adsorption area (5) is an annular structure loaded with a molecular sieve and is located outside the filtration area (6).

2. The water purification device for removing heavy metals according to claim 1, characterized in that: The upper cover (3) and the housing (4) are sealed and connected via a snap or thread.

3. The water purification device according to claim 1 or 2, characterized in that: The connection between the adsorption area (5) and the filtration area (6) is a threaded sealing connection.

4. The water purification device for removing heavy metals according to claim 1, characterized in that: The filter material of the filter zone (6) is a non-woven fabric, and the non-woven fabric is loaded with a molecular sieve.

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