Electrolytic demulsification oil removal device for oily wastewater treatment

Abstract

The utility model discloses an electrolytic demulsification air floatation oil removal device for oil-containing wastewater treatment, include: bottom plate, bottom plate bottom fixed mounting has support leg, bottom plate top surface fixed mounting has electrolytic cell, electrolytic cell bottom intercommunication is provided with the drain pipe, electrolytic unit, electrolytic unit is placed in the top of bottom plate, electrolytic unit includes electrolytic mechanism, stirring vane and push plate, and the stirring vane for rotation and the push plate for sliding can be used to drive the stirring of oil-containing wastewater in electrolytic cell, and cooperation electrolytic mechanism makes oil-containing wastewater can be fully electrolytic demulsification, and the slag unit, the slag unit is placed in the top of electrolytic cell, the slag unit includes reciprocating screw rod, telescopic link and scraper, is used to drive scraper reciprocating motion under the restriction of reciprocating screw rod, and starts telescopic link, and cooperation guide plate can be with the dross discharge treatment.

Description

Technical Field

[0001] This utility model relates to the field of oily wastewater treatment technology, and in particular to an electrolytic demulsification and air flotation oil removal device for oily wastewater treatment. Background Technology

[0002] Oily wastewater treatment refers to the process of removing or separating different forms of oily substances from wastewater through physical, chemical, biological, or combined technologies, so that the oil content of the treated wastewater meets the discharge standards or reuse requirements, while reducing the pollution and interference of oily substances on the environment or subsequent treatment systems. The electrolytic demulsification and air flotation oil removal device used for oily wastewater treatment is a highly efficient oil removal device for oily wastewater, which achieves oil-water purification through the synergistic effect of electrolytic demulsification and air flotation separation.

[0003] Existing electrolytic demulsification and flotation oil removal devices for treating oily wastewater are inconvenient to agitate and propel during use. This results in some water bodies not being able to fully contact the electrolytic device, which consists of high-frequency pulse current and precious metal electrodes, thus affecting the effectiveness of electrolytic demulsification and flotation oil removal.

[0004] Therefore, an electrolytic demulsification and air flotation oil removal device for treating oily wastewater is needed to solve the above problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems of the above-mentioned electrolytic demulsification and air flotation oil removal device for treating oily wastewater, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an electrolytic demulsification and air flotation oil removal device for treating oily wastewater, which solves the problem that "existing electrolytic demulsification and air flotation oil removal devices for treating oily wastewater are inconvenient to stir and push the oily wastewater during use, resulting in some water bodies not being able to fully contact the electrolytic device composed of high-frequency pulse current and precious metal electrodes, thus affecting the effect of electrolytic demulsification and air flotation oil removal".

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an electrolytic demulsification and air flotation oil removal device for treating oily wastewater, comprising:

[0009] A base plate, on which a support leg is fixedly installed at the bottom, and an electrolytic cell is fixedly installed on the top surface of the base plate, with a pipe connected to the bottom of the electrolytic cell;

[0010] An electrolysis unit is placed above a base plate. The electrolysis unit includes an electrolysis mechanism, stirring blades, and a pusher plate. The rotating stirring blades and sliding pusher plate can stir and push the oily wastewater inside the electrolysis cell. Together with the electrolysis mechanism, the oily wastewater can be fully electrolyzed and demulsified.

[0011] The slag scraping unit is located above the electrolytic cell. The slag scraping unit includes a reciprocating screw, a telescopic rod, and a scraper. Under the constraint of the reciprocating screw, the scraper is driven to reciprocate, and the telescopic rod is activated. With the help of the guide plate, the slag can be discharged and processed.

[0012] As a preferred embodiment of the electrolytic demulsification and flotation oil removal device for treating oily wastewater according to the present invention, the electrolysis unit includes an electrolysis mechanism fixedly installed on the top surface of the base plate, a first motor fixedly installed on the outer wall of the electrolysis tank, a rotating rod fixedly installed at the output end of the first motor, and a stirring blade fixedly installed on the outer wall of the rotating rod.

[0013] In a preferred embodiment of the electrolytic demulsification and flotation oil removal device for treating oily wastewater according to this utility model, a rotating plate is fixedly installed on the outer wall of the rotating rod, an extrusion block is fixedly installed at the end of the rotating plate, a limiting rod is fixedly installed on the inner wall of the electrolytic cell, a push plate is slidably arranged on the outer wall of the limiting rod, and a spring is fixedly installed on the side wall of the push plate.

[0014] As a preferred embodiment of the electrolytic demulsification and flotation oil removal device for treating oily wastewater according to the present invention, the extrusion block is arranged with an arc surface on the side away from the rotating plate, and the push plate is arranged with an arc surface and is slidably arranged inside the electrolytic cell. Under its constraint, when the extrusion block contacts and extrudes the arc surface of the push plate, it can push the push plate to push the oily wastewater inside the electrolytic cell.

[0015] As a preferred embodiment of the electrolytic demulsification and flotation oil removal device for treating oily wastewater according to this utility model, the spring is sleeved inside the limit rod and the end of the spring away from the push plate is fixedly installed on the inner wall of the electrolytic cell. Under the elastic action of the spring, the push plate that is not squeezed can be reset and pushed.

[0016] As a preferred embodiment of the electrolytic demulsification and flotation oil removal device for treating oily wastewater according to this utility model, the sludge scraping unit includes a guide plate fixedly installed on the outer wall of the electrolytic cell, a fixed frame fixedly installed on the top surface of the electrolytic cell, a bracket fixedly installed on the outer wall of the fixed frame, a second motor fixedly installed on the inner side of the bracket, a reciprocating screw fixedly installed at the output end of the second motor, a sleeve plate sleeved on the outer wall of the reciprocating screw, and a sliding rod slidably installed inside the sleeve plate.

[0017] In a preferred embodiment of the electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to this utility model, a telescopic rod is fixedly installed inside the sleeve plate, and a scraper is fixedly installed at the end of the telescopic rod.

[0018] As a preferred embodiment of the electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to the present invention, the end of the slide rod is fixedly installed to the side wall of the fixed frame. There are two slide rods, which are symmetrically distributed around the center line of the fixed frame. Under the restriction of the two slide rods, the rotating reciprocating screw can stably drive the sleeve plate on its outer wall to reciprocate, and can clean the scum in conjunction with the scraper.

[0019] The beneficial effects of this utility model are as follows: After oily wastewater is injected into the electrolytic cell, the electrolysis mechanism, under the action of high-frequency pulse current and precious metal electrodes, destroys the double electric layer of emulsified oil particles through a pure electric field, thereby achieving charge neutralization and destabilization. The first motor is started, and the rotating rod drives the stirring blade to stir the wastewater. At the same time, the extrusion block on the rotating rod reciprocates to extrude the push plate, causing the push plate to push water back and forth in the electrolytic cell, ensuring that the wastewater is fully demulsified. Compared with traditional electrocoagulation, the scum produced by this device can be heated or centrifuged to recover oil, and the residue is treated harmlessly.

[0020] After electrolytic demulsification is completed, the telescopic rod is activated to push the scraper to contact the scum. Then, the second motor is started. The reciprocating screw at its output end drives the sleeve to reciprocate under the constraint of the sliding rod and the sleeve plate. The sleeve plate drives the scraper to scrape off the scum on the liquid surface through the telescopic rod. When the scum is scraped to the guide plate, the telescopic rod drives the scraper to adjust upward along the inclined surface of the guide plate to achieve scum discharge. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a schematic diagram of the main structure of an electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to this utility model.

[0023] Figure 2 This is a schematic diagram of the electrolysis unit and the slag scraping unit of an electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to this utility model.

[0024] Figure 3 This is a schematic diagram of the electrolysis unit structure of an electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to this utility model.

[0025] Figure 4This is an exploded structural diagram of the electrolysis unit of an electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to this utility model.

[0026] Figure 5 This is a schematic diagram of the slag scraping unit structure of an electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to this utility model.

[0027] Figure 6 This is an exploded structural diagram of the slag scraping unit of an electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to this utility model.

[0028] Figure Descriptions: 100, Base plate; 101, Support leg; 102, Electrolytic cell; 103, Pipeline; 200, Electrolysis unit; 300, Slag scraping unit; 201, Electrolysis mechanism; 202, First motor; 203, Rotating rod; 204, Stirring blade; 205, Rotating plate; 206, Extrusion block; 207, Limiting rod; 208, Push plate; 209, Spring; 301, Guide plate; 302, Fixing frame; 303, Support; 304, Second motor; 305, Reciprocating screw; 306, Sleeve plate; 307, Slide rod; 308, Telescopic rod; 309, Scraper. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0033] Example 1

[0034] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention, which provides an electrolytic demulsification and flotation oil removal device for treating oily wastewater, comprising:

[0035] A base plate 100 is provided, with a support leg 101 fixedly installed at the bottom of the base plate 100, and an electrolytic cell 102 fixedly installed on the top surface of the base plate 100. A pipe 103 is connected to the bottom of the electrolytic cell 102.

[0036] Electrolysis unit 200 is placed above base plate 100. Electrolysis unit 200 includes electrolysis mechanism 201, stirring blade 204 and push plate 208. The rotating stirring blade 204 and sliding push plate 208 can stir and push the oily wastewater inside electrolysis cell 102. In conjunction with electrolysis mechanism 201, the oily wastewater can be fully electrolyzed and demulsified.

[0037] The slag scraping unit 300 is placed above the electrolytic cell 102. The slag scraping unit 300 includes a reciprocating screw 305, a telescopic rod 308 and a scraper 309. Under the restriction of the reciprocating screw 305, the scraper 309 is driven to reciprocate, and the telescopic rod 308 is activated. With the help of the guide plate 301, the slag can be discharged and processed.

[0038] When in use, under the constraints of the electrolytic cell 102 and in conjunction with the electrolysis unit 200, oily wastewater can be electrolytically demulsified. Under the constraints of the slag scraping unit 300, the slag material after electrolytic demulsification can be scraped.

[0039] Example 2

[0040] Reference Figure 3 and Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment is further optimized based on the above embodiment, as follows:

[0041] The electrolysis unit 200 includes an electrolysis mechanism 201 fixedly installed on the top surface of the base plate 100. A first motor 202 is fixedly installed on the outer wall of the electrolysis cell 102. A rotating rod 203 is fixedly installed at the output end of the first motor 202. A stirring blade 204 is fixedly installed on the outer wall of the rotating rod 203. A rotating plate 205 is fixedly installed on the outer wall of the rotating rod 203. An extrusion block 206 is fixedly installed at the end of the rotating plate 205. A limit rod 207 is fixedly installed on the inner wall of the electrolysis cell 102. A push plate 208 is slidably arranged on the outer wall of the limit rod 207. A spring 209 is fixedly installed on the side wall of the push plate 208.

[0042] The extrusion block 206 is arranged in an arc shape on the side away from the rotating plate 205, and the push plate 208 is also arranged in an arc shape and is slidably arranged inside the electrolytic cell 102. Under its constraint, when the extrusion block 206 contacts and extrudes the arc surface of the push plate 208, it can push the push plate 208 to push the oily wastewater inside the electrolytic cell 102.

[0043] The spring 209 is sleeved inside the outer wall of the limiting rod 207, and the end of the spring 209 away from the push plate 208 is fixedly installed on the inner wall of the electrolytic cell 102. Under the elastic action of the spring 209, the push plate 208, which is not squeezed, can be reset and pushed.

[0044] In use, when treating oily wastewater, it is added into the electrolytic cell 102. The electrolysis mechanism 201 is then activated. Under the pure electric field driven by a high-frequency pulsed current, a highly efficient electric field environment is constructed through noble metal electrodes, causing the emulsified oil particles to achieve charge neutralization and destabilization. The high-frequency pulsed electric field directly acts on the double layer of the emulsified oil particles, disrupting the stability of the emulsion system to achieve electrolytic demulsification. To ensure sufficient electrolytic demulsification of the oily wastewater inside the electrolytic cell 102, the first motor 202 is activated. The rotating rod 203, fixedly installed at its output end, rotates accordingly. The rotating rod 203 drives the stirring blade 204 to rotate, stirring the oily wastewater inside the electrolytic cell 102. When the rotating rod 203 rotates, it drives... The rotating plate 205 and the extrusion block 206 fixedly installed on its outer wall rotate accordingly. When the extrusion block 206 contacts and extrudes the arc surface of the push plate 208, the push plate 208 slides on the outer wall of the limiting rod 207 and compresses the spring 209 sleeved on the outer wall of the limiting rod 207. When the extrusion block 206 no longer contacts and extrudes the push plate 208, the push plate 208 can be reset and pushed under the elastic action of the spring 209. The reciprocating motion can realize the push plate 208 sliding back and forth inside the electrolytic cell 102, pushing the oily wastewater inside the electrolytic cell 102 so that it can be fully electrolyzed and demulsified. Compared with the traditional electrocoagulation demulsification, this electrolytic demulsification can recover the oil from the scum produced by electrolytic demulsification by heating or centrifugation, and the residue is treated harmlessly.

[0045] Example 3

[0046] Reference Figure 5 and Figure 6 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment is further optimized based on the above embodiments, as detailed below:

[0047] The slag scraping unit 300 includes a guide plate 301 fixedly installed on the outer wall of the electrolytic cell 102, a fixed frame 302 fixedly installed on the top surface of the electrolytic cell 102, a bracket 303 fixedly installed on the outer wall of the fixed frame 302, a second motor 304 fixedly installed on the inner side of the bracket 303, a reciprocating screw 305 fixedly installed at the output end of the second motor 304, a sleeve plate 306 sleeved on the outer wall of the reciprocating screw 305, a sliding rod 307 slidably arranged inside the sleeve plate 306, a telescopic rod 308 fixedly installed inside the sleeve plate 306, and a scraper 309 fixedly installed at the end of the telescopic rod 308.

[0048] Among them, the end of the slide rod 307 is fixedly installed on the side wall of the fixed frame 302. There are two slide rods 307, which are symmetrically distributed around the center line of the fixed frame 302. Under the restriction of the two slide rods 307, the rotating reciprocating screw 305 can stably drive the sleeve plate 306 on its outer wall to reciprocate, and can clean the scum in conjunction with the scraper 309.

[0049] During use, after the electrolysis unit 200 completes the electrolysis and demulsification of the oily wastewater, the scum needs to be scraped off. At this time, the telescopic rod 308 is activated to push the scraper 309 into contact with the scum. The second motor 304 is then activated, and the reciprocating screw 305, which is fixedly installed at its output end, rotates accordingly. Since the sleeve 306 is slidably set inside the outer wall of the slide rod 307, and the end of the slide rod 307 is fixedly installed on the side wall of the fixed frame 302, under its constraint, the rotating reciprocating screw 305 can drive the sleeve 306 to reciprocate. The sleeve 306 drives the scraper 309 to scrape off the scum on the liquid surface through the telescopic rod 308. When the scum is scraped to the guide plate 301, the telescopic rod 308 drives the scraper 309 to adjust upward according to the slope of the guide plate 301 to achieve the scum discharge effect.

[0050] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0051] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrolytic demulsification and air flotation oil removal device for treating oily wastewater, characterized in that, include: A base plate (100) is provided with a support leg (101) fixedly installed at the bottom of the base plate (100), and an electrolytic cell (102) is fixedly installed on the top surface of the base plate (100). A pipe (103) is connected to the bottom of the electrolytic cell (102). An electrolysis unit (200) is placed above a base plate (100). The electrolysis unit (200) includes an electrolysis mechanism (201), a stirring blade (204), and a pusher plate (208). The rotating stirring blade (204) and the sliding pusher plate (208) can stir and push the oily wastewater inside the electrolysis cell (102). Together with the electrolysis mechanism (201), the oily wastewater can be fully electrolyzed and demulsified. The slag scraping unit (300) is placed above the electrolytic cell (102). The slag scraping unit (300) includes a reciprocating screw (305), a telescopic rod (308), and a scraper (309). Under the restriction of the reciprocating screw (305), the scraper (309) is driven to reciprocate, and the telescopic rod (308) is activated. In conjunction with the guide plate (301), the slag can be discharged and processed.

2. The electrolytic demulsification and flotation oil removal device for treating oily wastewater according to claim 1, characterized in that: An electrolysis unit (200) is provided, comprising an electrolysis mechanism (201) fixedly mounted on the top surface of a base plate (100), a first motor (202) fixedly mounted on the outer wall of an electrolysis cell (102), a rotating rod (203) fixedly mounted on the output end of the first motor (202), and a stirring blade (204) fixedly mounted on the outer wall of the rotating rod (203).

3. The electrolytic demulsification and flotation oil removal device for treating oily wastewater according to claim 2, characterized in that: A rotating plate (205) is fixedly installed on the outer wall of the rotating rod (203), and a pressing block (206) is fixedly installed at the end of the rotating plate (205). A limiting rod (207) is fixedly installed on the inner wall of the electrolytic cell (102), and a push plate (208) is slidably arranged on the outer wall of the limiting rod (207). A spring (209) is fixedly installed on the side wall of the push plate (208).

4. The electrolytic demulsification and flotation oil removal device for treating oily wastewater according to claim 3, characterized in that: The extrusion block (206) is arranged in an arc shape on the side away from the rotating plate (205), and the push plate (208) is arranged in an arc shape and is slidably arranged inside the electrolytic cell (102).

5. The electrolytic demulsification and air flotation oil removal device for treating oily wastewater according to claim 3, characterized in that: The spring (209) is sleeved inside the outer wall of the limiting rod (207), and the end of the spring (209) away from the push plate (208) is fixedly installed on the inner wall of the electrolytic cell (102).

6. The electrolytic demulsification and flotation oil removal device for treating oily wastewater according to claim 1, characterized in that: The slag scraping unit (300) includes a guide plate (301) fixedly installed on the outer wall of the electrolytic cell (102), a fixing frame (302) fixedly installed on the top surface of the electrolytic cell (102), a bracket (303) fixedly installed on the outer wall of the fixing frame (302), a second motor (304) fixedly installed on the inner side of the bracket (303), a reciprocating screw (305) fixedly installed at the output end of the second motor (304), a sleeve plate (306) sleeved on the outer wall of the reciprocating screw (305), and a slide rod (307) slidably arranged inside the sleeve plate (306).

7. The electrolytic demulsification and flotation oil removal device for treating oily wastewater according to claim 6, characterized in that: A telescopic rod (308) is fixedly installed inside the sleeve (306), and a scraper (309) is fixedly installed at the end of the telescopic rod (308).

8. The electrolytic demulsification and flotation oil removal device for treating oily wastewater according to claim 6, characterized in that: The end of the slide rod (307) is fixedly installed on the side wall of the fixing frame (302). There are two slide rods (307), which are symmetrically distributed around the center line of the fixing frame (302).

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