CN218642531U - A membrane collection and treatment device for recovering precious metals from industrial wastewater - Google Patents

Abstract

The utility model belongs to the technical field of waste water treatment, especially, processing apparatus is collected to membrane of industrial waste water recovery noble metal. The utility model discloses an install in the tubular membrane core and rotatable strike off the subassembly and connect greatly and strike off the collection net dish that the subassembly scraped the metal under tubular membrane core inner wall, strike off the subassembly and collect the net dish and all be connected with the runner assembly transmission, the diameter of collecting the net dish is the same with the internal diameter of tubular membrane core. The utility model discloses a position that is close to the export inside tubular membrane core sets up the collection net dish, is used for collecting the noble metal in the waste liquid, scrapes the pole and fixes in the week side of collecting the net dish, and the inner wall of laminating tubular membrane core, when the carousel rotates with the axle center with the collection net dish, scrapes the brush hair on the pole and can scrape the metal particle who remains at tubular membrane core inner wall down, makes more thoroughly that the noble metal was collected, has guaranteed simultaneously that tubular membrane core inner wall is clean, does not influence follow-up filtering separation.

Description

A membrane collection and treatment device for recovering precious metals from industrial wastewater

technical field

The utility model belongs to the technical field of wastewater treatment, in particular to a membrane collection and treatment device for recycling precious metals from industrial wastewater.

Background technique

Industrial wastewater refers to the wastewater and waste liquid produced in the process of industrial production, which contains industrial production materials, intermediate products, by-products and pollutants produced in the production process lost with water. For example, electrolytic salt industrial wastewater contains mercury, heavy metal smelting industrial wastewater contains various metals such as lead and cadmium, and electroplating industrial wastewater contains various heavy metals such as cyanide and chromium. For environmental protection, it is usually necessary to use physical methods to filter wastewater. The metals in it are removed to avoid polluting the environment, and the membrane components usually used for filtration are ceramic membranes.

Ceramic membranes are asymmetric membranes prepared from inorganic ceramic materials through special processes. When the traditional membrane treatment device treats wastewater, the wastewater is passed into the membrane core of the ceramic membrane. There is a filter layer on the membrane wall of the membrane core. The wastewater is filtered through the membrane core, and the filtered water enters the membrane core and The non-filterable waste liquid is left in the membrane core and discharged from the drain of the ceramic membrane. However, due to the residual metals in the existing industrial wastewater, especially in the wastewater produced by the semiconductor industry, there are still some precious metals, the metals in the wastewater cannot pass through the membrane core, and often get stuck in the filter holes of the membrane core, which not only makes Precious metals cannot be collected effectively, resulting in a waste of resources, and also affecting the filtering effect of ceramic membranes.

Utility model content

In order to overcome the above-mentioned defects in the prior art, the utility model provides a membrane collection and treatment device for recycling precious metals from industrial wastewater, which has the advantages of convenient collection of separated precious metals and more convenient internal cleaning.

In order to achieve the above object, the utility model adopts the following technical solutions:

A membrane collection and treatment device for recovering precious metals from industrial wastewater, the device includes a rotatable scraping assembly installed in a tubular membrane core and a collection net pan for holding the metal scraped off by the scraping assembly from the inner wall of the tubular membrane core, Both the scraping assembly and the collecting mesh pan are connected to the rotating assembly, and the diameter of the collecting mesh pan is the same as the inner diameter of the tubular membrane core.

Preferably, the scraping assembly includes a scraping rod that is attached to the inner wall of the tubular membrane core, and the surface of the scraping rod is provided with bristles; the collecting grid plate is a hemispherical structure composed of a filter net.

Preferably, there are several scraping rods, and the scraping rods are arranged at intervals along the circumference of the top of the collecting net pan.

Preferably, the rotating assembly is composed of a turntable, a gear plate, a gear and a motor. The bottom of the collecting grid plate is provided with a card slot on the turntable, and the turntable is fixed on the top of the gear plate. The gear plate meshes with the gear, and the output of the gear and the motor The transmission connection at the end, the collection network disk and the turntable are set on the same axis.

Preferably, the hole diameter of the collecting grid is 3-5mm.

Preferably, the tops of the plurality of scraping rods are all fixed on bearings, the bearings are installed on the top cover, and the top cover is detachably connected to the tubular membrane core.

Preferably, a gap layer is provided between the tubular membrane core and the membrane case, the water outlet of the gap layer is connected to the first drain pipe, and the water outlet of the tubular membrane core is connected to the second drain pipe.

The utility model has the advantages of:

(1) In the utility model, a collection net plate is arranged inside the tubular membrane core close to the outlet to collect precious metals in the waste liquid. On the inner wall, when the turntable rotates coaxially with the collecting net disk, the bristles on the scraper rod can scrape off the metal particles remaining on the inner wall of the tubular membrane core, so that the precious metals can be collected more thoroughly, and at the same time, the inner wall of the tubular membrane core can be kept clean , does not affect the subsequent filtration separation.

(2) The scraper rod of the utility model is fixed on the top cover through bearings, and the collection network disk is clamped on the turntable, and the top cover can be pulled out from the inside of the tubular membrane core with the scraper rod and the collection disc, which is convenient for collecting The collection of the disk is taken out, and the operation is simple and convenient for repeated use; at the same time, in order to avoid the slowdown of the liquid flow rate in the tubular membrane core caused by the installation of the collection grid plate, the tubular membrane core is also connected with a second liquid discharge pipe to ensure The liquid in the tubular membrane core can be discharged smoothly.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the membrane collection and treatment device of the present invention.

Fig. 2 is a schematic diagram of the installation structure of the scraper rod and the collecting tray of the present invention.

Fig. 3 is a schematic diagram of the connection structure between the bearing and the top cover of the present invention.

The meanings of the marked symbols in the figure are as follows:

1-Membrane shell, 2-Tube membrane core, 3-Gap layer, 4-First discharge pipe, 5-Second liquid discharge pipe, 6-Scraper rod, 7-Turntable, 8-Gear plate, 9-Collection Network disk, 10-top cover, 11-gear, 12-motor, 13-bearing.

Detailed ways

As shown in Figures 1-3, a membrane collection and treatment device for recovering precious metals from industrial wastewater, the collection grid plate 9 is installed inside the tubular membrane core 2, and a number of scrapers 6 are arranged around the outer edge of the collection grid plate 9 at intervals. The bottom end of the collecting grid plate 9 is connected to the turntable 7, and the side wall of the scraper rod 6 is in contact with the inner wall of the tubular membrane core 2. The motor transmission assembly is driven to achieve rotation. The motor transmission assembly includes a gear 11 and a motor 12. The output end of the motor 12 is connected to the gear 11. The gear 11 is meshed with the gear plate 8. During the working process, the scraper 6 moves along the tube membrane The inner wall of the core 2 slides, scrapes off the precious metal particles attached to the inner wall, and falls into the collecting net pan 9 .

Specifically, the outer surface of the scraper 6 is provided with a number of bristles, and the bristles brush the inner wall of the tubular membrane core 2, not only brushing off the metal, but also cleaning the micropores on the inner wall of the tubular membrane core 2, so as to facilitate the solidification of subsequent waste liquid. liquid separation, the bottom of the collection net disk 9 is provided with a block, and the top of the turntable 7 is provided with a slot. It is relatively fixed with the turntable 7, and at the same time, it is convenient to separate the collection net disk 9 from the turntable 7. The top end of the scraper rod 6 is connected to the top cover 10, and the top cover 10 adopts a detachable fixed membrane shell 1, which can be threaded, so that the top cover can be removed 10, the scraper bar 6 and the collecting grid plate 9 can be drawn out, which is convenient for cleaning the collected precious metals. In order to facilitate the rotation of the scraper bar 6 with the turntable 7, the top of the scraper bar 6 is also connected to the top cover 10 through a bearing 13, that is, the bearing 13 is installed on the inside of the top cover 10, and the top of the scraper bar 6 is connected to the bearing 13.

Further, the collection net plate 9 is a hemispherical structure composed of a filter net, and the aperture of the collection net pan 9 is 3-5mm, so that fine impurities can pass through the filter net, but metal particles cannot pass through.

Furthermore, the tubular membrane core 2 is fixed on the membrane shell 1, and there is an interstitial layer 3 between the membrane shell 1 and the interstitial layer 3 connected to the first liquid discharge pipe 4 for discharge. The inside of the tubular membrane core 2 is connected to the second liquid discharge pipe 5, which is used to discharge the liquid that does not completely pass through the tubular membrane core 2.

The working process of the device will be described in detail below in conjunction with the drawings in the embodiments.

Waste water enters the tubular membrane core 2 from the water inlet on the top cover 10, and the waste water passes through the tubular membrane core 2 to filter to the void layer 3, and the waste residue in the non-filterable waste liquid remains in the tubular membrane core 2, and Part of the metal that cannot be filtered will remain on the inner wall of the tubular membrane core 2. After the motor 12 is started, the output end drives the gear 11 to rotate, and the gear 11 drives the gear plate 8 meshed with it to rotate. axis, the gear plate 8 rotates, and the turntable 7 and the collecting grid plate 9 rotate accordingly. The scraper 6 installed on the collecting grid plate 9 fits the inner wall of the tubular membrane core 2 and rotates, and the metal adhered on the inner wall and sundries are cleaned down and fall into the collecting net pan 9 at the bottom; at the same time, because the net collecting pan 9 has mesh holes, the waste liquid of the fruit orange inside the tubular membrane core 2 can flow out through the collecting net pan 9 or pass through The second liquid discharge pipe 5 is discharged, and the filtrate in the gap layer 3 can be discharged through the first liquid discharge pipe 4; when it is necessary to take out the collection net plate 9, the top cover 10 can be opened, and the scraper 6 and the collection net can be taken out. Disc cleaning of collected precious metals.

The above are only preferred embodiments of the utility model creation, and are not intended to limit the utility model creation. Any modifications, equivalent replacements and improvements made within the spirit and principles of the utility model creation should be included in the Within the scope of protection created by the utility model.

Claims (7)

1. A kind of film collecting treatment device of industrial waste water reclaiming precious metal, it is characterized in that, this device comprises and is installed in the tubular membrane core (2) and rotatable scraping assembly and Sheng connects scraping assembly from tubular membrane core ( 2) The metal collection grid (9) scraped off the inner wall, the scraping assembly and the collection grid (9) are all connected to the rotating assembly, and the diameter of the collection grid (9) is the same as that of the tubular membrane core ( 2) have the same inner diameter. 2. A film collection and treatment device for recovering precious metals from industrial wastewater according to claim 1, characterized in that: the scraping assembly includes a scraper (6) arranged on the inner wall of the tubular membrane core (2), and the The surface of the scraping rod (6) is provided with bristles; the collecting grid plate (9) is a hemispherical structure composed of filter nets. 3. A film collection and treatment device for recovering precious metals from industrial wastewater according to claim 2, characterized in that: there are several scraper bars (6), and the scraper bars (6) are arranged along the collection net pan (9) Top perimeter side spacing set. 4. A film collection and treatment device for recycling precious metals from industrial wastewater according to claim 1, characterized in that: the rotating assembly consists of a turntable (7), a gear plate (8), a gear (11) and a motor (12) Composition, the bottom of the collection net plate (9) is provided with a card slot on the turntable (7), and the turntable (7) is fixed on the top of the gear plate (8), and the gear plate (8) and the gear (11) are meshed, the gear (11) is connected to the output end of the motor (12), and the collecting grid (9) is coaxially arranged with the turntable (7). 5. A membrane collection and treatment device for recovering precious metals from industrial wastewater according to claim 2, characterized in that: the pore diameter of the collection grid (9) is 3-5 mm. 6. A film collection and treatment device for recovering precious metals from industrial waste water according to claim 3, characterized in that: the tops of several scrapers (6) are all fixed on bearings (13), and the bearings (13) Installed on the top cover (10), the top cover (10) is detachably connected with the tubular membrane core (2). 7. A membrane collection and treatment device for recycling precious metals from industrial wastewater according to claim 6, characterized in that: a gap layer (3) is provided between the tubular membrane core (2) and the membrane shell (1), The water outlet of the void layer (3) is connected to the first drain pipe (4), and the water outlet of the tubular membrane core (2) is connected to the second drain pipe (5).

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