Wastewater treatment device with oil-water separation function

Abstract

The wastewater treatment device with the oil-water separation function comprises a treatment bin, oil removal assemblies are symmetrically arranged on the two sides of the treatment bin, each oil removal assembly comprises a pair of extending folding frames, a first rolling shaft is rotationally connected between the two extending folding frames, and a second rolling shaft is rotationally connected between the two extending folding frames. The oil removing assembly further comprises a second rolling shaft rotationally installed on the upper portion of the interior of the treatment bin, a belt is arranged between the second rolling shaft and the extending folding frame in a sleeving mode, and an oil-attached fabric is fixedly connected to the outer side of the belt; wherein an extrusion shaft and an oil moving shaft are rotationally connected to the middle of the extending folding frame, a storage bin is arranged below the extending folding frame, and a water collecting bin and an oil collecting bin are arranged below the storage bin; oil and water are separated in an adhesion manner, so that the oil-water separation net does not need to simultaneously filter a large amount of sewage with low-concentration oil quantity, blockage caused by influence of excessive sewage flushing on separation of the oil during filtration is avoided, and the separation efficiency is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil water separation technical field, concretely to a wastewater treatment device with oil water separation function. BACKGROUND

[0002] Oil-containing wastewater refers to wastewater containing oil and grease substances that are insoluble in water, which mainly comes from refinery oil-containing wastewater, oil-containing wastewater from oil exploitation, industrial oil-containing wastewater and oil-containing wastewater from catering industry. In order to avoid pollution caused by direct discharge of oil-containing wastewater to the environment, it is necessary to treat oil-containing wastewater through a special oil-containing wastewater treatment device. The existing oil-containing wastewater treatment device mainly collects and treats oil suspended on the water surface through oil-water incompatibility. However, this treatment device still has some shortcomings in actual use: simple suspended oil-water separation can only remove the oil on the surface of water, and this method has low oil removal efficiency and cannot guarantee complete oil removal.

[0003] Publication No. CN220642685U discloses an oil-containing wastewater treatment device, which comprises a pre-filtering pool, a slag collecting box is arranged on the left side of the pre-filtering pool, a water pump is fixed in the pre-filtering pool, an oil-water separation pool is fixed on the right side of the pre-filtering pool, a water tank and an oil tank are arranged below the oil-water separation pool, and a backflushing device is connected to the water tank and the pre-filtering pool. The pre-filtering pool is composed of a coarse grid, a fine grid, an ultrasonic transducer and a sand filter layer. This oil-containing wastewater treatment device adopts a double filtration mechanism to filter and separate impurities in oil-containing wastewater, avoids pipe blockage caused by impurities, cooperates with a circulating backflushing mechanism to flush the filtration mechanism with separated water, avoids blockage of the filtration mechanism, ensures normal operation of the device, and ensures oil-water separation effect through a double oil-water separation mechanism. However, this patent still has the following problems in actual use:

[0004] When the above device separates oil mixed in water, the oil-water mixture is separated during free flow. However, the effective time of the ultrasonic transducer is poor for rapidly flowing sewage, resulting in low demulsification effect, which is not conducive to ensuring the effectiveness of subsequent filtration.

[0005] A wastewater treatment device with oil-water separation function is proposed to solve the problems raised in the above background. Utility model content

[0006] The utility model aims to provide a wastewater treatment device with oil-water separation function to solve the problem that the above device separates oil mixed in water, the oil-water mixture is separated during free flow, the effective time of the ultrasonic transducer is poor for rapidly flowing sewage, resulting in low demulsification effect, which is not conducive to ensuring the effectiveness of subsequent filtration.

[0007] To achieve the above object, the utility model provides following technical scheme: a wastewater treatment device with oil -water separation function, including the treatment bin and the drainage valve pipe of installing in one side of the bottom of treatment bin, the top of treatment bin is linked with the water inlet,

[0008] The oil cleaning assembly is symmetrically arranged on both sides of the treatment bin, the oil cleaning assembly comprises a pair of extension folding frames, a first roller shaft is rotatably connected between the two extension folding frames, the oil cleaning assembly further comprises a second roller shaft rotatably installed above the inside of the treatment bin, the second roller shaft is located on one side of the inside of the treatment bin close to the extension folding frame, a belt is sleeved between the second roller shaft and the extension folding frame, and the outer side of the belt is fixedly connected with the oil-attached fabric.

[0009] The middle part of the extension folding frame is rotatably connected with a squeezing shaft and an oil moving shaft, the outer side of the oil moving shaft is fixedly connected with an oil absorption sponge, the oil absorption sponge is attached to the outer side of the oil-attached fabric, the squeezing shaft is located on one side of the oil moving shaft and closely attached to the oil absorption sponge, a second motor is installed on the outer side of the extension folding frame, one end of the oil moving shaft and the squeezing shaft penetrates through the extension folding frame and is fixedly connected with a gear, a scraper is arranged on one side of the squeezing shaft, the scraper is fixedly connected with the extension folding frame, a storage bin is arranged below the extension folding frame, and a water collecting bin and an oil collecting bin are arranged below the storage bin.

[0010] The inside of the treatment bin is provided with an auxiliary assembly.

[0011] Preferably, the inside of the treatment bin is fixedly connected with guide plates in a symmetrical manner, the outer side of the treatment bin is fixedly connected with second motors in a symmetrical manner, the output end of the second motor is fixedly connected with the second roller shaft, the two gears are meshingly connected with each other, the first roller shaft is located at the top of the extension folding frame, and the extension folding frame is fixed to the outer side of the treatment bin.

[0012] Preferably, the storage bin is fixedly connected with the outer side of the treatment bin, the top of the storage bin is covered with an oil-water separation net, the storage bin is arranged in an inclined manner, and the oil-water separation net is embedded in the surface of the storage bin.

[0013] Preferably, the water collecting bin and the oil collecting bin are fixedly connected, the water collecting bin is fixedly connected with the outer side of the treatment bin, a flow guide pipe is fixedly connected to the bottom of the water collecting bin and the oil collecting bin, the belt is in contact with the surface of sewage, and the output end of the second motor is fixedly connected with one end of the squeezing shaft.

[0014] Preferably, the auxiliary assembly comprises a third motor, the third motor is fixed to the bottom of the treatment bin, a hollow pipe is rotatably installed in the inside of the treatment bin, a plurality of pairs of hollow sticks are fixedly connected to the side edges of the hollow pipe, and inclined nozzles are fixedly connected to the outer side of the hollow sticks.

[0015] Preferably, the top plate is rotatably connected with the top end of the hollow pipe.

[0016] Preferably, the output end of the third motor is fixedly connected with the hollow pipe.

[0017] Compared with the prior art, the beneficial effects of the wastewater treatment device with the oil-water separation function are as follows: the oil and water are separated by the contact and attachment mode, so that the oil-water separation net does not need to filter a large amount of low-concentration oil-containing sewage at the same time, the separation efficiency is ensured, and the specific contents are as follows:

[0018] 1. The oil and water are separated by the contact and attachment mode, so that the oil-water separation net does not need to filter a large amount of low-concentration oil-containing sewage at the same time, the separation efficiency is ensured, and the specific contents are as follows:

[0019] 2. The oil and water are separated by the contact and attachment mode, so that the oil-water separation net does not need to filter a large amount of low-concentration oil-containing sewage at the same time, the separation efficiency is ensured, and the specific contents are as follows: BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front structure schematic view of the utility model;

[0021] Figure 2 It is a front structure schematic view of the utility model;

[0022] Figure 3 It is Figure 2 It is a structure schematic view of the middle C;

[0023] Figure 4The installation structure diagram of the extension folding frame is shown in the figure.

[0024] Figure 5 The installation structure diagram of the extension folding frame is shown in the figure. Figure 2 The installation structure diagram of the extension folding frame is shown in the figure.

[0025] Figure 6 The installation structure diagram of the extension folding frame is shown in the figure. Figure 2 The installation structure diagram of the extension folding frame is shown in the figure.

[0026] Figure 7 The installation structure diagram of the extension folding frame is shown in the figure.

[0027] In the figure: 1, treatment bin; 101, drain valve pipe; 102, water inlet; 2, oil cleaning assembly; 201, extension folding frame; 202, first roller; 203, second roller; 204, belt; 205, oil-attached fabric; 206, guide plate; 207, second motor; 208, extrusion shaft; 209, oil moving shaft; 210, oil-absorbing sponge; 211, scraper; 212, storage bin; 213, oil-water separation net; 214, water collecting bin; 215, oil collecting bin; 216, flow guide pipe; 217, gear; 3, auxiliary assembly; 301, third motor; 302, hollow pipe; 303, hollow stick; 304, inclined nozzle; 305, connecting top plate; 306, gas injection pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figure 1 - Figure 7 The present application provides a technical solution: a wastewater treatment device with oil-water separation function, comprising a treatment bin 1, and a drain valve pipe 101 installed on one side of the bottom of the treatment bin 1, and a water inlet 102 connected to the top of the treatment bin 1; the water inlet 102 can guide sewage into the treatment bin 1.

[0030] An oil cleaning assembly 2 is symmetrically arranged on both sides of the treatment bin 1, the oil cleaning assembly 2 comprising a pair of extension folding frames 201, a first roller 202 rotatably connected between the two extension folding frames 201, and a second roller 203 rotatably installed on the inside of the treatment bin 1 above, the second roller 203 being located on one side of the treatment bin 1 close to the extension folding frame 201, a belt 204 being sleeved between the second roller 203 and the extension folding frame 201, and an oil-attached fabric 205 being fixedly connected to the outside of the belt 204;

[0031] The middle part of the extension folding frame 201 is rotationally connected with an extrusion shaft 208 and an oil moving shaft 209, the outer side of the oil moving shaft 209 is fixedly connected with an oil absorption sponge 210, the oil absorption sponge 210 is attached to the outer side of the oil-attached fabric 205, the extrusion shaft 208 is located on one side of the oil moving shaft 209 and closely attached to the oil absorption sponge 210, the outer side of the extension folding frame 201 is provided with a second motor 207, one end of the oil moving shaft 209 and the extrusion shaft 208 penetrates through the extension folding frame 201 and is fixedly connected with a gear 217, one side of the extrusion shaft 208 is provided with a scraper 211, the scraper 211 is fixedly connected with the extension folding frame 201, the lower part of the extension folding frame 201 is provided with a storage bin 212, the lower part of the storage bin 212 is provided with a water collecting bin 215 and an oil collecting bin 214; the oil absorption sponge 210 can effectively absorb the oil and sewage on the oil-attached fabric 205.

[0032] The inside of the processing bin 1 is provided with an auxiliary assembly 3.

[0033] The inside of the processing bin 1 is fixedly connected with a guide plate 206 in a symmetrical manner, the outer side of the processing bin 1 is fixedly connected with a second motor 207 in a symmetrical manner, the output end of the second motor 207 is fixedly connected with a second roller shaft 203, two gears 217 are meshingly connected with each other, the first roller shaft 202 is located at the top of the extension folding frame 201, and the extension folding frame 201 is fixed to the outer side of the processing bin 1; the guide plate 206 can guide the oil film on the surface of the sewage to the second roller shaft 203.

[0034] The storage bin 212 is fixedly connected with the outer side of the processing bin 1, the top of the storage bin 212 is covered with an oil-water separation net 213, and the storage bin 212 is provided in an inclined manner; the oil-water separation net 213 is embedded on the surface of the storage bin 212; the oil-water separation net 213 is a prior art, the surface thereof is specially treated, so that the oil droplets can quickly spread on the surface of the net film and penetrate, and the water is intercepted on the net film and cannot penetrate downward because it cannot wet the surface of the net film; the inside of the storage bin 212 can place a purification medium of the sewage, and the bottom end of the oil-water separation net 213 is located above the oil collecting bin 214.

[0035] The water collecting bin 215 is fixedly connected with the oil collecting bin 214, the water collecting bin 215 is fixedly connected with the outer side of the processing bin 1, and the water collecting bin 215 and the oil collecting bin 214 are fixedly connected with a flow guide pipe 216 at the bottom, the belt 204 is in contact with the surface of the sewage, and the output end of the second motor 207 is fixedly connected with one end of the extrusion shaft 208; the bottom of the belt 204 is located below the surface of the sewage, and different flow guide pipes 216 can collect the separated sewage and oil in a reflux manner.

[0036] The auxiliary component 3 includes a third motor 301, which is fixed to the bottom of the processing chamber 1. A hollow tube 302 is rotatably installed inside the processing chamber 1. Several pairs of hollow rods 303 are fixedly connected to the side of the hollow tube 302. An angled nozzle 304 is fixedly connected to the outside of the hollow rods 303. The angled nozzle 304 can make the sprayed gas appear as small bubbles.

[0037] A connecting top plate 305 is fixedly connected to the upper middle position inside the processing chamber 1. The connecting top plate 305 is rotatably connected to the top end of the hollow tube 302. An air injection pipe 306 is fixedly connected to the top of the connecting top plate 305. The hollow tube 302 is connected to the air injection pipe 306. The air injection pipe 306 is connected to an external air pump.

[0038] The output end of the third motor 301 is fixedly connected to the hollow tube 302; the bottom end of the hollow tube 302 is fixedly connected to the third motor 301.

[0039] Working principle: Before using this wastewater treatment device with oil-water separation function, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 7 As shown, the second motor 207 is first started to rotate the extrusion shaft 208, and the oil transfer wheel 209 drives the oil-absorbing sponge 210 to rotate through the two gears 217. The second motor 207 is also started to rotate the first roller 202 through the belt 204 to drive the second roller 203 to rotate. As a result, the oil on the surface of the sewage will be driven upward and contact the oil-absorbing sponge 210 when it comes into contact with the oil-coated fabric 205. The oil-absorbing sponge 210 will absorb the oil and a small amount of water on the oil-coated fabric 205. The extrusion shaft 208 will squeeze out the oil-water mixture inside the oil-absorbing sponge 210, and the scraper 211 will scrape off the oil-water mixture outside the extrusion shaft 208. The mixture will fall onto the oil-water separation net 213 below. The oil will pass through the oil-water separation net 213 and fall into the water collection tank 214, while the water will flow into the water collection tank 214 along the surface of the oil-water separation net 213.

[0040] By starting the third motor 301, the hollow tube 302 drives the hollow rod 303 to rotate, and the air injection pipe 306 blows external air into the sewage in the form of bubbles. With the agitation of the hollow rod 303, the agitated small bubbles will enrich the small oil flakes floating inside the sewage, and then the small oil flakes will quickly gather into larger oil flakes on the surface of the sewage, making it easier for them to contact the oil-coated fabric 205 and improve the oil removal efficiency.

[0041] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wastewater treatment device with oil-water separation function, comprising a treatment bin (1), a drain valve pipe (101) installed on one side of the bottom of the treatment bin (1), and a water inlet (102) communicated with the top of the treatment bin (1). characterized in that Further comprising: An oil cleaning assembly (2) is symmetrically arranged on both sides of the treatment bin (1), the oil cleaning assembly (2) comprises a pair of extension folding frames (201), a first roller shaft (202) is rotatably connected between the two extension folding frames (201), the oil cleaning assembly (2) further comprises a second roller shaft (203) rotatably installed on the upper side of the inside of the treatment bin (1), the second roller shaft (203) is located on the side of the inside of the treatment bin (1) close to the extension folding frame (201), a belt (204) is sleeved between the second roller shaft (203) and the extension folding frame (201), and an oil-attached fabric (205) is fixedly connected to the outer side of the belt (204). Wherein, the middle part of the extension folding frame (201) is rotatably connected with an extrusion shaft (208) and an oil moving shaft (209), the outer side of the oil moving shaft (209) is fixedly connected with an oil absorption sponge (210), the oil absorption sponge (210) is attached to the outer side of the oil-attached fabric (205), the extrusion shaft (208) is located on one side of the oil moving shaft (209) and tightly attached to the oil absorption sponge (210), a second motor (207) is installed on the outer side of the extension folding frame (201), one end of the oil moving shaft (209) and the extrusion shaft (208) penetrates through the extension folding frame (201) and is fixedly connected with a gear (217), a scraper (211) is arranged on one side of the extrusion shaft (208), the scraper (211) is fixedly connected with the extension folding frame (201), a storage bin (212) is arranged below the extension folding frame (201), and a water collecting bin (215) and an oil collecting bin (214) are arranged below the storage bin (212). Wherein, an auxiliary assembly (3) is arranged in the inside of the treatment bin (1).

2. The wastewater treatment device with oil-water separation function according to claim 1, characterized in that: A guide plate (206) is fixedly connected symmetrically in the inside of the treatment bin (1), a second motor (207) is fixedly connected symmetrically on the outer side of the treatment bin (1), the output end of the second motor (207) is fixedly connected with the second roller shaft (203), the two gears (217) are meshingly connected with each other, the first roller shaft (202) is located on the top of the extension folding frame (201), and the extension folding frame (201) is fixed to the outer side of the treatment bin (1).

3. The wastewater treatment device with oil-water separation function according to claim 2, characterized in that: The storage bin (212) is fixedly connected with the outer side of the treatment bin (1), the top of the storage bin (212) is covered with an oil-water separation net (213), the storage bin (212) is arranged obliquely, and the oil-water separation net (213) is embedded in the surface of the storage bin (212).

4. The wastewater treatment device with oil-water separation function according to claim 1, characterized in that: The water collecting bin (215) is fixedly connected with the oil collecting bin (214), the water collecting bin (215) is fixedly connected with the outside of the processing bin (1), the bottom of the water collecting bin (215) and the oil collecting bin (214) is fixedly connected with the flow guide pipe (216), the belt (204) is in contact with the sewage surface, and one end of the extrusion shaft (208) is fixedly connected with the output end of the second motor (207).

5. The wastewater treatment device with oil-water separation function according to claim 1, characterized in that: The auxiliary assembly (3) comprises a third motor (301), the third motor (301) is fixed to the bottom of the processing bin (1), the inside of the processing bin (1) is rotatably provided with a hollow pipe (302), a plurality of pairs of hollow sticks (303) are fixedly connected to the side of the hollow pipe (302), and the outer side of the hollow stick (303) is fixedly connected with an inclined nozzle (304).

6. The wastewater treatment device with oil-water separation function according to claim 5, characterized in that: The inside of the processing bin (1) is fixedly connected with a connecting top plate (305) at the upper middle position, the connecting top plate (305) is rotatably connected with the top end of the hollow pipe (302), the top of the connecting top plate (305) is fixedly connected with a gas injection pipe (306), and the hollow pipe (302) is in communication with the gas injection pipe (306).

7. The wastewater treatment device with oil-water separation function according to claim 5, characterized in that: The output end of the third motor (301) is fixedly connected with the hollow pipe (302).

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