CN216366973U - Chromium plating waste water filter equipment - Google Patents

Abstract

The utility model discloses a chromium plating wastewater filtering device, wherein during filtering, a first switch controls a water inlet pump to work, a second switch controls a first electromagnetic on-off valve and a second electromagnetic on-off valve to open, wastewater with flocculation precipitation enters from the lower part of the filtering device through a water inlet pipe and passes through a filtering structure from bottom to top, filtered clear water flows from a water outlet pipe to a reservoir, the flocculation precipitation is discharged from a mud discharge pipe at the bottom of the filtering device, when cleaning is needed, the first switch controls the water inlet pump to stop working, the second switch controls the first electromagnetic on-off valve and the second electromagnetic on-off valve to close, a water supplementing mechanism operates and conveys the clear water in the reservoir to the filtering mechanism, clear water at the upper layer in the filtering device backflushs the filtering element under the action of gravity, and simultaneously starts the cleaning mechanism to scrub the precipitation on the filtering element, so as to avoid the precipitation on the filtering element after long-term use, affecting the filtering effect.

Description

Chromium plating waste water filter equipment

Technical Field

The utility model relates to the technical field of wastewater treatment equipment, in particular to a chromium plating wastewater filtering device.

Background

Waste water such as electroplating solution and rinsing waste liquid generated by chromium plating contains a large amount of heavy metals, and the direct discharge of the heavy metals has serious influence on the ecological environment and the biological health. When the chromium plating wastewater is treated, after a reagent is added to adjust the pH value of the wastewater, the generated chromium-containing flocculation precipitate needs to be filtered and separated, and during filtering, the precipitate is accumulated in a filtering device to influence the filtering effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chromium plating wastewater filtering device which can solve the problem that flocculation, precipitation and accumulation influence the filtering effect during chromium plating wastewater treatment.

The utility model provides a chromium plating wastewater filtering device which is arranged between a flocculation tank and a reservoir, and comprises a tank body, wherein the bottom of the tank body is provided with an underframe, the lower part of the side wall of the tank body is provided with a water inlet pipe, the water inlet pipe is connected with the tank body and the flocculation tank, the water inlet pipe is provided with a water inlet pump and a first electromagnetic on-off valve, the upper part of the side wall of the tank body is provided with a water outlet pipe, the water outlet pipe is connected with the tank body and the reservoir, the water inlet pump is electrically connected with a first switch, the first electromagnetic on-off valve and the second electromagnetic on-off valve are both electrically connected with a second switch, the first switch and the second switch are arranged in a linkage manner, the bottom of the tank body is provided with a sludge discharge pipe, the sludge discharge pipe is provided with an electromagnetic reversing valve, a filtering piece and a cleaning mechanism are arranged in the tank body, the filtering piece is transversely arranged in the tank body, and the cleaning mechanism is arranged in the filtering piece in a penetrating manner, a water supplementing mechanism is arranged between the tank body and the reservoir and is connected with the top of the tank body for conveying water in the reservoir to the tank body.

According to the chromium plating wastewater filtering device, the cleaning mechanism comprises a motor, a driving bevel gear, a driven bevel gear, a rotating rod and a cleaning brush, the motor is arranged at the top of the tank body, the driving bevel gear is connected with the output end of the motor, the driven bevel gear is meshed with the driving bevel gear, the rotating rod is vertically arranged in the tank body and penetrates through the filtering piece, the top of the rotating rod extends out of the tank body and is connected with the driven bevel gear, the cleaning brush is fixedly connected with the rotating rod, and the cleaning brush is transversely arranged in the tank body and is attached to the bottom of the filtering piece.

According to the chromium plating wastewater filtering device, the water supplementing mechanism comprises a water supplementing pipe, a water supplementing water pump and a third electromagnetic on-off valve, the inlet end of the water supplementing pipe is arranged in the water storage tank, the outlet end of the water supplementing pipe is connected with the top of the tank body, the water supplementing water pump and the third electromagnetic on-off valve are arranged on the water supplementing pipe, and the water supplementing water pump and the third electromagnetic on-off valve are both electrically connected with a third switch.

According to the chromium plating wastewater filtering device, the filtering pieces are provided with a plurality of groups, the groups of the filtering pieces are distributed in the tank body along the vertical direction, and the cleaning brushes are arranged in a plurality of groups corresponding to the filtering pieces one by one.

According to the chromium plating wastewater filtering device, the outer side of the tank body is provided with a plurality of auxiliary sludge discharge pipes, a backflow main pipe, a pressure regulating valve and a fourth electromagnetic on-off valve, the auxiliary sludge discharge pipes are arranged on the upper portions of the filtering pieces in one-to-one correspondence with the filtering pieces, the inlet ends of the auxiliary sludge discharge pipes are connected with the tank body, the outlet ends of the auxiliary sludge discharge pipes are connected with the backflow main pipe, one end of the backflow main pipe is connected with the electromagnetic reversing valve, the other end of the backflow main pipe is arranged in the flocculation tank, the fourth electromagnetic on-off valve is arranged on the backflow main pipe, the fourth electromagnetic on-off valve is electrically connected with the third switch, and the auxiliary sludge discharge pipes are provided with the pressure regulating valve.

According to the chromium plating wastewater filtering device, the filtering piece comprises a first mesh plate, a second mesh plate and a filtering layer, the first mesh plate and the second mesh plate are arranged in parallel, through holes for the rotating rods to pass through are formed in the first mesh plate and the second mesh plate, and the filtering layer is clamped between the first mesh plate and the second mesh plate.

Has the advantages that: through the structure, when in filtration, the first switch controls the water inlet pump to work, the second switch controls the first electromagnetic on-off valve and the second electromagnetic on-off valve to open, wastewater with flocculation precipitation enters from the lower part of the filtration device through the water inlet pipe and passes through the filtration structure from bottom to top, the filtered clear water flows to the reservoir from the water outlet pipe, the flocculated sediment is discharged from a sludge discharge pipe at the bottom of the filtering device, when the cleaning is needed, the first switch controls the water inlet pump to pause, the second switch controls the first electromagnetic on-off valve and the second electromagnetic on-off valve to close, the water replenishing mechanism operates and conveys clear water in the water storage tank to the filtering mechanism, clear water on the upper layer in the filtering device backwashes the filtering piece under the action of gravity, the clean mechanism of start-up simultaneously scrubs the sediment on filtering the piece, avoids long-term the back sediment of using piling up on filtering the piece, influences the filter effect.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic view showing the combination of a filtration apparatus for wastewater containing chromium plating according to the present invention with a flocculation tank and a water reservoir;

FIG. 2 is a schematic piping diagram of the chromium plating wastewater filtering apparatus of the present invention together with a flocculation tank and a retention reservoir;

FIG. 3 is a schematic view showing the construction of the chromium plating wastewater filtering apparatus of the present invention;

FIG. 4 is a bottom view showing the positional relationship between the filter member and the cleaning brush in the chromium plating wastewater filtering apparatus of the present invention;

FIG. 5 is a schematic view showing the structure of a filter member in the chromium plating waste water filtering apparatus according to the present invention;

FIG. 6 is a schematic view showing the electrical connection of the chromium plating wastewater filtering apparatus of the present invention.

In the figure: 1. the flocculation tank comprises a flocculation tank body, a water storage tank body, a 301 chassis, a 302 water inlet pipe, a 303 water inlet pump, a 304 first electromagnetic on-off valve, a 305 water outlet pipe, a 306 second electromagnetic on-off valve, a 307 first switch, a 308 second switch, a 309 sludge discharge pipe, a 310 electromagnetic reversing valve, a 4 filter piece, a 401 first mesh plate, a 402 second mesh plate, a 403 filter layer, a 501 motor, a 502 driving bevel gear, a 503 driven bevel gear, a 504 rotating rod, a 505 cleaning brush, a 601 water replenishing pipe, a 602 water replenishing pump, a 603 third electromagnetic on-off valve, a 604 third switch, a 701 auxiliary sludge discharge pipe, a 702 reflux main pipe, a pressure regulating valve 703, 704 and a fourth electromagnetic on-off valve.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, greater than, less than, exceeding, etc. are understood as excluding the present numbers, and the above, below, inside, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1-6, a chrome plating wastewater filtering device is provided, which is arranged between a flocculation tank 1 and a reservoir 2 of a wastewater treatment line, the chrome plating wastewater filtering device comprises a tank 3, a bottom frame 301 is arranged at the bottom of the tank 3 for supporting the body of the tank 3, a water inlet pipe 302 is arranged at the lower part of the side wall of the tank 3, the water inlet pipe 302 is connected with the tank 3 and the flocculation tank 1, a water inlet pump 303 and a first electromagnetic on-off valve 304 are arranged on the water inlet pipe 302, a water outlet pipe 305 is arranged at the upper part of the side wall of the tank 3, the water outlet pipe 305 is connected with the tank 3 and the reservoir 2, a second electromagnetic on-off valve 306 is arranged on the water outlet pipe 305, the water inlet pump 303 is electrically connected with a first switch 307, the first electromagnetic on-off valve 304 and the second electromagnetic on-off valve 306 are electrically connected with a second switch 308, the first switch 307 and the second switch 308 are arranged in a linkage manner, a mud discharge pipe 309 is arranged at the bottom of the tank 3, be provided with the solenoid directional valve 310 on the mud pipe 309, be provided with in jar body 3 and filter 4 and clean mechanism, filter 4 lateral arrangement in jar body 3, clean mechanism wears to locate and filters 4, is provided with moisturizing mechanism between jar body 3 and the cistern 2, and moisturizing mechanism links to each other with the top of jar body 3 for carry jar body 3 with the water in the cistern 2.

During filtering, the first switch 307 controls the water inlet pump 303 to work, the second switch 308 controls the first electromagnetic on-off valve 304 and the second electromagnetic on-off valve 306 to open, wastewater with flocculation precipitation enters from the lower part of the filtering device through the water inlet pipe 302 and passes through the filtering piece 4 from bottom to top, filtered clean water flows to the reservoir 2 from the water outlet pipe 305, the flocculation precipitation is discharged from the sludge discharge pipe 309 at the bottom of the filtering device, when cleaning is needed, the first switch 307 controls the water inlet pump 303 to pause, the second switch 308 controls the first electromagnetic on-off valve 304 and the second electromagnetic on-off valve 306 to close, water in the flocculation tank 1 stops flowing, the water supplementing mechanism operates and conveys the clean water in the reservoir 2 to the filtering mechanism, upper layer clean water in the filtering device backwashes the filtering piece 4 under the action of gravity, meanwhile, the cleaning mechanism is started to scrub the precipitation on the filtering piece 4, and the precipitation on the filtering piece 4 is prevented from accumulating after long-term use, affecting the filtering effect.

Preferably, the cleaning mechanism comprises a motor 501, a driving bevel gear 502, a driven bevel gear 503, a rotating rod 504 and a cleaning brush 505, the motor 501 is arranged at the top of the tank body 3, the driving bevel gear 502 is connected with the output end of the motor 501, the driven bevel gear 503 is meshed with the driving bevel gear 502, the rotating rod 504 is vertically arranged inside the tank body 3 and penetrates through the filter element 4, the top of the rotating rod 504 extends out of the tank body 3 and is connected with the driven bevel gear 503, the cleaning brush 505 is fixedly connected with the rotating rod 504, and the cleaning brush 505 is transversely arranged inside the tank body 3 and is attached to the bottom of the filter element 4. To avoid affecting the water flow, the cleaning brush 505 is provided in the shape of a strip. When the cleaning brush is used, the starting motor 501 drives the driving bevel gear 502 to rotate, the driving bevel gear 502 drives the driven bevel gear 503 to rotate, the rotating rod 504 connected with the driven bevel gear 503 is made to rotate, and the cleaning brush 505 is driven to rotate to brush the filtering piece 4.

Preferably, the water replenishing mechanism comprises a water replenishing pipe 601, a water replenishing pump 602 and a third electromagnetic on-off valve 603, the inlet end of the water replenishing pipe 601 is arranged in the reservoir 2, the outlet end of the water replenishing pipe 601 is connected with the top of the tank body 3, the water replenishing pump 602 and the third electromagnetic on-off valve 603 are arranged on the water replenishing pipe 601, and the water replenishing pump 602 and the third electromagnetic on-off valve 603 are electrically connected with a third switch 604. When the filter apparatus is cleaned, the third switch 604 controls the make-up water pump 602 to be activated to introduce the clean water from the reservoir 2 into the filter apparatus to provide sufficient cleaning of the filter elements 4.

Further, jar internal 3 internal filter piece 4 is provided with the multiunit to guarantee to filter abundant, and the multiunit filters piece 4 and lays along the upper and lower direction in jar internal 3, and cleaning brush 505 sets up to the multiunit with filtering 4 looks one-to-one.

Preferably, the filter element 4 includes a first mesh plate 401, a second mesh plate 402 and a filter layer 403, the first mesh plate 401 and the second mesh plate 402 are arranged in parallel, each of the first mesh plate 401 and the second mesh plate 402 is provided with a through hole through which the rotating rod 504 can pass, and the filter layer 403 is sandwiched between the first mesh plate 401 and the second mesh plate 402. The filter layer 403 can be made of anthracite, quartz sand, pebble layer and other materials according to actual requirements.

Further, a plurality of auxiliary sludge discharge pipes 701, a backflow main pipe 702, a pressure regulating valve 703 and a fourth electromagnetic on-off valve 704 are arranged on the outer side of the tank body 3, the auxiliary sludge discharge pipes 701 are located on the upper portions of the filtering pieces 4 in a one-to-one correspondence manner, the inlet ends of the auxiliary sludge discharge pipes 701 are connected with the tank body 3, the outlet ends of the auxiliary sludge discharge pipes 701 are connected with the backflow main pipe 702, one end of the backflow main pipe 702 is connected with the electromagnetic reversing valve 310, the other end of the backflow main pipe 702 is arranged in the flocculation tank 1, the fourth electromagnetic on-off valve 704 is arranged on the backflow main pipe 702, the fourth electromagnetic on-off valve 704 is electrically connected with the third switch 604, and the pressure regulating valve 703 is arranged on the auxiliary sludge discharge pipes 701. During filtering, the electromagnetic directional valve 310 on the sludge discharge pipe 309 closes the sludge discharge pipe 309, and the fourth electromagnetic on-off valve 704 closes the sludge discharge main pipe, so that the water flow is ensured to face upwards; when the flocculated sediment obtained by filtering at the bottom of the filtering device is removed, the electromagnetic reversing valve 310 on the sludge discharge pipe 309 opens the sludge discharge pipe 309, so that the flocculated sediment is discharged out of the filtering device from the sludge discharge pipe 309; when cleaning filter equipment is inside, electromagnetic directional valve 310 on mud pipe 309 is responsible for 702 intercommunication with the backward flow with mud pipe 309, the clear water that original clear water and moisturizing mechanism mended in filter equipment is after wasing filtering piece 4, the clear water portability that part was filtered on 4 is accumulational flocculation and precipitation and is gone into corresponding vice mud pipe 701, reduce once more through the flocculation and precipitation of lower floor filtering piece 4, part flocculation and precipitation flows in the filter equipment bottom, and flow back to the total pipe that flows back through mud pipe 309, the total pipe that flows back the flocculation basin 1 of the flocculation and precipitation of discharging, make things convenient for subsequent collection.

The utility model provides a chromium plating wastewater filtering device, during filtering, a first switch 307 controls a water inlet pump 303 to work, a second switch 308 controls a first electromagnetic on-off valve 304 and a second electromagnetic on-off valve 306 to open, wastewater with flocculation precipitation enters from the lower part of the filtering device through a water inlet pipe 302 and passes through a filtering structure from bottom to top, filtered clean water flows from a water outlet pipe 305 to a reservoir 2, the flocculation precipitation is discharged from a mud discharge pipe 309 at the bottom of the filtering device, when cleaning is needed, the first switch 307 controls the water inlet pump 303 to stop working, the second switch 308 controls the first electromagnetic on-off valve 304 and the second electromagnetic on-off valve 306 to close, a water supplementing mechanism operates and conveys the clean water in the reservoir 2 to the filtering mechanism, clean water on the upper layer in the filtering device backwashes a filtering element 4 under the action of gravity, and simultaneously starts the cleaning mechanism to scrub the precipitation on the filtering element 4, avoid long-term use after the sediment pile up on filtering piece 4, influence the filter effect.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (6)

1. A chromium plating wastewater filtering device is arranged between a flocculation tank (1) and a reservoir (2), and is characterized by comprising a tank body (3), wherein the bottom of the tank body (3) is provided with a bottom frame (301), the lower part of the side wall of the tank body (3) is provided with a water inlet pipe (302), the water inlet pipe (302) is connected with the tank body (3) and the flocculation tank (1), the water inlet pipe (302) is provided with a water inlet pump (303) and a first electromagnetic on-off valve (304), the upper part of the side wall of the tank body (3) is provided with a water outlet pipe (305), the water outlet pipe (305) is connected with the tank body (3) and the reservoir (2), the water outlet pipe (305) is provided with a second electromagnetic on-off valve (306), the water inlet pump (303) is electrically connected with a first switch (307), the first electromagnetic on-off valve (304) and the second electromagnetic on-off valve (306) are both electrically connected with a second switch (308), and the first switch (307) and the second switch (308) are linked, the mud pipe (309) is provided with to jar body (3) bottom, is provided with electromagnetic directional valve (310) on mud pipe (309), be provided with in jar body (3) and filter piece (4) and clean mechanism, filter piece (4) transverse arrangement in jar body (3), clean mechanism wears to locate and filters piece (4), be provided with moisturizing mechanism between jar body (3) and cistern (2), moisturizing mechanism links to each other with the top of jar body (3) for carry jar body (3) with the water in the cistern (2).

2. The chrome plating wastewater filtering device as claimed in claim 1, wherein the cleaning mechanism comprises a motor (501), a driving bevel gear (502), a driven bevel gear (503), a rotating rod (504) and a cleaning brush (505), the motor (501) is arranged at the top of the tank body (3), the driving bevel gear (502) is connected with the output end of the motor (501), the driven bevel gear (503) is meshed with the driving bevel gear (502), the rotating rod (504) is vertically arranged inside the tank body (3) and penetrates through the filtering piece (4), the top of the rotating rod (504) extends out of the tank body (3) and is connected with the driven bevel gear (503), the cleaning brush (505) is fixedly connected with the rotating rod (504), and the cleaning brush (505) is transversely arranged inside the tank body (3) and is attached to the bottom of the filtering piece (4).

3. The chrome plating wastewater filtering device according to claim 1 or 2, wherein the water replenishing mechanism comprises a water replenishing pipe (601), a water replenishing pump (602) and a third electromagnetic on-off valve (603), the inlet end of the water replenishing pipe (601) is arranged in the reservoir (2), the outlet end of the water replenishing pipe (601) is connected with the top of the tank body (3), the water replenishing pump (602) and the third electromagnetic on-off valve (603) are arranged on the water replenishing pipe (601), and the water replenishing pump (602) and the third electromagnetic on-off valve (603) are both electrically connected with a third switch (604).

4. The chrome plating wastewater filtering device as recited in claim 2, wherein said filtering elements (4) are provided in plural sets, and said plural sets of said filtering elements (4) are arranged in the tank (3) in the up-down direction, and said cleaning brushes (505) are provided in plural sets corresponding to the filtering elements (4) one by one.

5. The chrome plating wastewater filtering device as claimed in claim 4, wherein a plurality of auxiliary sludge discharge pipes (701), a main return pipe (702), a pressure regulating valve (703) and a fourth electromagnetic on-off valve (704) are arranged outside the tank body (3), the auxiliary sludge discharge pipes (701) are arranged, and is positioned on the upper part of the filter member (4) in one-to-one correspondence with the filter member (4), the inlet end of the auxiliary sludge discharge pipe (701) is connected with the tank body (3), the outlet end is connected with the backflow main pipe (702), one end of the backflow main pipe (702) is connected with the electromagnetic directional valve (310), the other end of the backflow main pipe (702) is arranged in the flocculation tank (1), the fourth electromagnetic on-off valve (704) is arranged on the backflow main pipe (702), and the fourth electromagnetic on-off valve (704) is electrically connected with the third switch (604), and the auxiliary sludge discharge pipe (701) is provided with a pressure regulating valve (703).

6. The chrome plating wastewater filtering device according to claim 4, wherein the filtering element (4) comprises a first mesh plate (401), a second mesh plate (402) and a filtering layer (403), the first mesh plate (401) and the second mesh plate (402) are arranged in parallel, the first mesh plate (401) and the second mesh plate (402) are provided with through holes for the rotating rod (504) to pass through, and the filtering layer (403) is clamped between the first mesh plate (401) and the second mesh plate (402).

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