Reinforced air flotation device for sewage treatment

Abstract

The utility model provides a reinforced air flotation device for sewage treatment, and belongs to the technical field of sewage treatment. The device comprises a pool body and a slag scraping unit, the tops of the two sides of the pool body are provided with extension platforms corresponding to slag scraping areas, the tops of the ends, away from the pool wall, of the extension platforms are connected with mounting plates, the mounting plates are connected with a supporting floating platform, the surface of the supporting floating platform is provided with a sliding groove surrounding the supporting floating platform by a circle, and the side wall of the sliding groove is provided with a limiting groove; the slag scraping unit comprises a transmission wheel, a transmission chain and a scraper, the transmission chain is located between the supporting floating platform and the mounting plate, the transmission chain is provided with a connecting block, the two ends of a plate body of the scraper are connected with connecting rods, the connecting rods are connected with the connecting block, and the connecting rods are provided with supporting planes slidably attached to the upper surface and the lower surface of the supporting floating platform; a sliding block in sliding fit with the sliding groove is arranged on the supporting plane, and a limiting block matched with the limiting groove is arranged on the side wall of the sliding block. The device can well support and fix the scraping plate, and the problem that the scraping plate is prone to inclining during slag scraping is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the sewage treatment technical field, in particular to a reinforced air flotation device for sewage treatment. BACKGROUND

[0002] The air flotation device is a common sewage treatment equipment, which releases micron-sized bubbles through a dissolved air system, so that suspended particles adhere to form a scum layer, and then the scum layer is scraped into a scum storage area by a scraper to realize removal. In some common schemes, a chain is used as a conveying member to drive the scraper to move circularly in work, and the end of the scraper away from the conveying member is subjected to a large force when scraping the scum. At this time, the chain is subjected to the force of the scraper and shakes, and the end of the scraper away from the conveying member tilts towards the rear of the movement of the scraper, which affects the scum scraping effect of the scraper. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a reinforced air flotation device for sewage treatment, which can better support and fix the scraper and improve the problem that the scraper is prone to tilting when scraping the scum.

[0004] The embodiment of the application is implemented as follows:

[0005] The embodiment of the application provides a reinforced air flotation device for sewage treatment, which comprises:

[0006] A pool body, two side top portions of the pool body are provided with extension platforms corresponding to the scum scraping area, the top portion of the end of the extension platform away from the pool wall is connected with a mounting plate, the side of the mounting plate close to the extension platform is connected with a support floating platform located above the extension platform, the surface of the support floating platform is provided with sliding grooves around the upper and lower surfaces of the support floating platform, and the groove side wall of the sliding groove is provided with a limiting groove;

[0007] A scum scraping unit, the scum scraping unit comprises a transmission wheel, a conveying chain and a scraper, the transmission wheel is rotatably connected to the mounting plate, the conveying chain is located above the extension platform and is in transmission connection with the transmission wheel, the conveying chain is located between the support floating platform and the mounting plate, the conveying chain is provided with a connecting block, the conveying chain is located outside the projection of the support floating platform on the mounting plate, the both ends of the plate main body of the scraper are connected with connecting rods, the end of the connecting rod away from the plate main body is connected with the connecting block, the side of the connecting rod close to the support floating platform is provided with a support plane which is slidably attached to the upper and lower surfaces of the support floating platform, the support plane is provided with a sliding block which is slidably matched with the sliding groove, and the side wall of the sliding block is provided with a limiting block which is matched with the limiting groove.

[0008] In some embodiments, the side wall of the sliding block is provided with an inclined chute, the distance of the inclined chute to the end of the sliding block away from the support plane gradually decreases from the opening of the inclined chute to the bottom of the chute, the inclined chute slidably matches with the limiting block and can accommodate the whole limiting block, and the limiting groove corresponds to the opening of the inclined chute and can slidably accommodate part of the limiting block.

[0009] In some embodiments, the inclined chute and the limiting block extend along a straight line direction.

[0010] In some embodiments, in the height direction of the scraper, the width of the bottom of the limiting groove matches the width of the limiting block, the opening width of the limiting groove is greater than the width of the limiting block, and the opening of the limiting groove is located outside the opening of the inclined chute.

[0011] In some embodiments, when the limiting block slides to the bottom of the limiting groove, 1 / 3-2 / 3 of the limiting block is accommodated in the limiting groove.

[0012] In some embodiments, the sliding block is provided with a limiting side plane corresponding to the groove side wall of the sliding groove, and the limiting side plane slidably matches with the groove side wall of the sliding groove.

[0013] In some embodiments, the end of the sliding block away from the support plane is provided with a roller that rollingly matches with the sliding groove.

[0014] In some embodiments, the end side of the sliding block away from the support plane is provided with an inclined protrusion, the inclined protrusion is located at the front side of the sliding block in the sliding direction, and the distance of the inclined protrusion to the side surface of the sliding block gradually increases in the direction close to the end of the sliding block away from the support plane.

[0015] In some embodiments, the plate body is integrally connected with the connecting rod.

[0016] The reinforced air flotation device for sewage treatment provided by the embodiments has the following beneficial effects:

[0017] The support floating platform is arranged on the side of the conveying chain close to the scraper, the connecting rod is arranged at both ends of the plate body of the scraper, the connecting rod slidably matches with the surface of the support floating platform through the support plane, the connecting and fixing action of the conveying chain on the connecting rod and the support and resisting action of the surface of the support floating platform on the connecting rod are matched with each other, the connection and support fixation of the connecting rod are strengthened, and the problem that the scraper is easy to tilt when scraping slag is improved.

[0018] The supporting floating platform has a sliding groove, and the scraper is equipped with a sliding block that slides into the sliding groove to strengthen the sliding fit between the two. At the same time, a limiting groove is opened on the side wall of the sliding groove, and a limiting block matching the limiting groove is configured on the sliding block to prevent the sliding block from detaching from the opening of the sliding groove (mainly when the scraper is located below the conveyor chain for scraping slag, the opening of the sliding groove faces downwards). This allows the supporting plane of the connecting rod to maintain a good fit with the surface of the supporting floating platform, which helps to better improve the problem of the scraper tilting easily when scraping slag. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of a reinforced air flotation device for wastewater treatment provided in an embodiment of this application, viewed from a first perspective.

[0021] Figure 2 for Figure 1 Enlarged view of section II in the middle;

[0022] Figure 3 This is a structural schematic diagram of a reinforced air flotation device for wastewater treatment provided in an embodiment of this application, viewed from a second perspective.

[0023] Figure 4 for Figure 3 A magnified view of a section at point IV in the middle;

[0024] Figure 5 This is a structural schematic diagram of a reinforced air flotation device for wastewater treatment provided in an embodiment of this application, viewed from a third-person perspective.

[0025] Figure 6 for Figure 5 A magnified view of a section at point VI;

[0026] Figure 7 An exploded view of a partial fit between the support platform and the scraper provided in an embodiment of this application;

[0027] Figure 8 A schematic diagram of a partial fit between the support platform and the scraper provided in an embodiment of this application;

[0028] Figure 9 Another partial sectional view showing the fit between the support platform and the scraper provided in an embodiment of this application.

[0029] icon:

[0030] 100 - Reinforced air floatation device for sewage treatment;

[0031] 110 - Pool body; 111 - Slag scraping area; 112 - Extension platform; 113 - Mounting plate; 114 - Support floating platform; 1141 - Sliding groove; 1142 - Limiting groove; 115 - Reaction area; 116 - Air floatation contact area; 117 - Slag storage area; 118 - Clean water area;

[0032] 120 - Slag scraping unit; 121 - Transmission wheel; 122 - Transmission chain; 1221 - Connecting block; 123 - Scraper; 1231 - Plate body; 1232 - Connecting rod; 1233 - Sliding block; 12331 - Limiting block; 12332 - Inclined sliding groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "vertical", "parallel", and the like are not intended to mean that the components are absolutely vertical or parallel, but can be slightly inclined.

[0039] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] The technical solutions of the present application will be exemplarily described below through some embodiments.

[0041] Referring to Figures 1-6 The embodiment of the present application provides a reinforced air flotation device 100 for sewage treatment, which comprises a pool body 110 and a slag scraping unit 120.

[0042] The two sides of the top of the pool body 110 are provided with an extension platform 112 corresponding to the slag scraping area 111, and the top of the end of the extension platform 112 away from the pool wall is connected with a mounting plate 113.

[0043] It can be understood that the structure of the pool body 110 can be designed conventionally, for example, a reaction area 115, an air flotation contact area 116, a slag storage area 117, a clear water area 118, etc. can also be configured. The reaction area 115 is located upstream of the air flotation contact area 116, the air flotation contact area 116 is located upstream of the slag scraping area 111, and the slag scraping area 111 is located upstream of the slag storage area 117; the sewage first enters the reaction area 115 for flocculation reaction; the sewage after flocculation reaction enters the air flotation contact area 116, the flocculation in the sewage and the micro-bubbles in the air flotation contact area 116 are fused into the slag scraping area 111; in the slag scraping area 111, the suspended matter attached with a large number of micro-bubbles rises to the liquid surface to form floating slag; the floating slag is scraped by the slag scraping unit 120 to the slag storage area 117. The clear water area 118 is located downstream of the slag scraping area 111, and the slag scraping area 111 and the clear water area 118 are connected, for example, by a pipeline.

[0044] The slag scraping unit 120 comprises a transmission wheel 121, a conveying chain 122 and a scraper 123. The transmission wheel 121 is rotatably connected to the mounting plate 113; the conveying chain 122 is located above the extension platform 112 and is in transmission connection with the transmission wheel 121, which is exemplarily and conventionally provided in the shape of a racetrack.

[0045] The side of the mounting plate 113 close to the extension platform 112 is connected with a support floating platform 114 located above the extension platform 112, and the outer contour shape of the support floating platform 114 is exemplarily the same as the conveying path of the conveying chain 122, for example, provided in the shape of a racetrack.

[0046] Referring to Figures 7-9 The surface of the support floating platform 114 is provided with a sliding groove 1141 around the upper and lower surfaces of the support floating platform 114, and the extension direction of the sliding groove 1141 corresponds to the conveying path direction of the conveying chain 122. The groove side wall of the sliding groove 1141 is provided with a limiting groove 1142, and the limiting groove 1142 is arranged in a circle along the extension direction of the sliding groove 1141.

[0047] The conveying chain 122 is located between the support floating platform 114 and the mounting plate 113, and the conveying chain 122 is provided with a connecting block 1221. The orthogonal projection of the conveying chain 122 is arranged around the outer periphery of the orthogonal projection of the support floating platform 114 on the mounting plate 113, that is, the outer contour of the conveying chain 122 is larger than the outer contour of the support floating platform 114, and the support floating platform 114 corresponds to the inner side of the conveying chain 122.

[0048] The both ends of the plate main body 1231 of the scraper 123 are connected with connecting rods 1232, and the connecting mode of the connecting rods 1232 and the plate main body 1231 is not limited, for example but not limited to detachable connection, welding, integral connection and the like. As an example, the plate main body 1231 is integrally connected with the connecting rod 1232, so that the connection stability is strong.

[0049] The end of the connecting rod 1232 away from the plate main body 1231 is connected with the connecting block 1221, and the two are exemplarily detachably connected, for example but not limited to bolt connection, so that the connection is stable and convenient to disassemble and assemble.

[0050] Referring to Figure 7 and Figure 8 The side of the connecting rod 1232 close to the support floating platform 114 has a support plane slidably attached to the upper and lower surfaces of the support floating platform 114, and the support plane is provided with a sliding block 1233 slidably matched with the sliding groove 1141, and the side wall of the sliding block 1233 is provided with a limiting block 12331 matched with the limiting groove 1142.

[0051] The reinforced air flotation device 100 for sewage treatment provided by the embodiment of the application is provided with the support floating platform 114 on the side of the conveying chain 122 close to the scraper 123, and the connecting rod 1232 is arranged at both ends of the plate main body 1231 of the scraper 123, and the connecting rod 1232 is slidably attached to the surface of the support floating platform 114 through the support plane. The connecting and fixing effect of the connecting rod 1232 by the conveying chain 122 and the support and resisting effect of the connecting rod 1232 by the surface of the support floating platform 114 are matched with each other, so that the connection and support and fixation of the connecting rod 1232 are strengthened, and the problem that the scraper 123 is easy to tilt when scraping slag is improved.

[0052] The support floating platform 114 is provided with a sliding groove 1141, and the scraper 123 is provided with a sliding block 1233 which is in sliding cooperation with the sliding groove 1141, so that the sliding cooperation of the two is reinforced. Meanwhile, a limiting groove 1142 is formed in the side wall of the sliding groove 1141, and the sliding block 1233 is provided with a limiting block 12331 which is matched with the limiting groove 1142, so as to prevent the sliding block 1233 from being separated from the opening of the sliding groove 1141 (mainly when the scraper 123 is located below the conveying chain 122 to scrape the slag, the opening of the sliding groove 1141 faces downward), so that the support plane of the connecting rod 1232 can be well attached to the surface of the support floating platform 114, and the problem that the scraper 123 is easily inclined when scraping the slag is improved.

[0053] In the embodiments of the present application, the sliding groove 1141, the limiting groove 1142, the sliding block 1233 and the limiting block 12331 can be conventionally arranged without special description, for example, the sliding groove 1141 and the limiting groove 1142 form a T-shaped sliding groove, and the sliding block 1233 and the limiting block 12331 form a T-shaped sliding block. In this case, an installation opening extending to the T-shaped sliding groove can be formed in the surface of the support floating platform 114, and the installation opening is used for sliding the T-shaped sliding block into the T-shaped sliding groove.

[0054] Referring to Figure 7 and Figure 8 In some embodiments, the side wall of the sliding block 1233 is provided with an inclined sliding groove 12332. The inclined sliding groove 12332 can be an arc-shaped groove extending along an arc direction from an opening to a groove bottom, or a straight-shaped groove extending along a straight line direction from the opening to the groove bottom. The distance from the inclined sliding groove 12332 to the end of the sliding block 1233 away from the support plane gradually decreases from the opening to the groove bottom of the inclined sliding groove 12332, that is, when the scraper 123 is located above the conveying chain 122, the opening of the inclined sliding groove 12332 is higher than the groove bottom, and when the scraper 123 is located below the conveying chain 122, the opening of the inclined sliding groove 12332 is lower than the groove bottom.

[0055] The inclined sliding groove 12332 is in slidable cooperation with the limiting block 12331 and can accommodate the entire limiting block 12331. The shape and size of the limiting block 12331 are exemplary consistent with the inclined sliding groove 12332, that is, the limiting block 12331 is attached to the inclined sliding groove 12332, and when the limiting block 12331 is completely accommodated in the inclined sliding groove 12332, the two ends of the limiting block 12331 are located at the opening and the groove bottom of the inclined sliding groove 12332, respectively.

[0056] The limiting groove 1142 corresponds to the opening of the inclined sliding groove 12332 and can slidably accommodate part of the limiting block 12331, that is, part of the limiting block 12331 can slide into the limiting groove 1142.

[0057] The working principle based on the above design is as follows:

[0058] When the scraper 123 is located above the conveying chain 122, the limiting block 12331 can slide to the groove bottom of the inclined sliding groove 12332 under the action of gravity and be completely accommodated in the inclined sliding groove 12332, because the opening of the inclined sliding groove 12332 is higher than the groove bottom. In this state, on the one hand, during installation, it is convenient to insert the sliding block 1233 into the sliding groove 1141 at any position above the conveying chain 122, making the installation more flexible and convenient; on the other hand, during work, the sliding friction between the connecting rod 1232 and the support floating platform 114 can be reduced.

[0059] When the scraper 123 is located below the conveying chain 122, the limiting block 12331 can slide to the opening of the inclined sliding groove 12332 under the action of gravity, so that part of the limiting block 12331 slides into the limiting groove 1142 and the other part remains in the inclined sliding groove 12332, thereby realizing the limiting cooperation of the limiting block 12331 and the limiting groove 1142. In this way, the limiting block 12331 can be switched to the limiting cooperation state with the limiting groove 1142 under the action of gravity, which is simple and convenient.

[0060] Optionally, the inclined sliding groove 12332 and the limiting block 12331 both extend in a straight line direction, so that the limiting block 12331 can slide relative to the inclined sliding groove 12332 under the action of gravity to switch the working state more smoothly.

[0061] Further, in the height direction of the scraper 123, the groove bottom width of the limiting groove 1142 matches the width of the limiting block 12331, which is conducive to the matching limiting of the groove bottom of the limiting groove 1142 and the limiting block 12331; the opening width of the limiting groove 1142 is greater than the width of the limiting block 12331, and the opening of the limiting groove 1142 is located outside the opening of the inclined sliding groove 12332, which facilitates the smoother sliding of the limiting block 12331 into the opening of the limiting groove 1142.

[0062] Optionally, when the limiting block 12331 slides to the groove bottom of the limiting groove 1142, 1 / 3-2 / 3 of the limiting block 12331 is accommodated in the limiting groove 1142; as an example, when the limiting block 12331 slides to the groove bottom of the limiting groove 1142, half of the limiting block 12331 is accommodated in the limiting groove 1142. In this state, the limiting block 12331 has a relatively stable cooperation relationship with the limiting groove 1142 and the inclined sliding groove 12332.

[0063] In some embodiments, the sliding block 1233 is provided with a limiting side plane corresponding to the groove side wall of the sliding groove 1141, and the limiting side plane is slidably attached to the groove side wall of the sliding groove 1141.

[0064] Based on the design, the sliding block 1233 can be prevented from deflecting left and right in the sliding groove 1141, and when the forces on both ends of the scraper 123 are unbalanced during the slag scraping process, the scraper 123 can be better prevented from deflecting left and right, so that the slag scraping process of the scraper 123 is more stable.

[0065] In some examples, the end of the sliding block 1233 away from the support plane is provided with a roller (not shown in the figure) that rolls with the sliding groove 1141, so that the sliding block 1233 and the sliding groove 1141 slide more smoothly.

[0066] Referring to Figure 9 In other examples, the end of the sliding block 1233 away from the support plane is provided with an inclined protrusion on the side surface, and the inclined protrusion is located on the front side of the sliding block 1233 in the sliding direction, and the distance from the inclined protrusion to the side surface of the sliding block 1233 gradually increases in the direction close to the end of the sliding block 1233 away from the support plane.

[0067] Among them, taking the state when the sliding block 1233 is located below the conveying chain 122 as a reference example, the front side of the sliding block 1233 in the sliding direction refers to the side of the sliding block 1233 close to the slag storage area 117. Based on this design, during the movement of the scraper 123, the inclined protrusion can clean the groove bottom of the sliding groove 1141, which is conducive to the smooth sliding of the sliding block 1233 and the sliding groove 1141.

[0068] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A reinforced air flotation device for wastewater treatment, characterized in that, The utility model relates to a pool body, the both sides top of pool body is equipped with the extension platform corresponding with the slag removal area, and the extension platform top away from the one end of pool wall is connected with the mounting plate, the mounting plate side near the extension platform is connected with the support pontoon located the extension platform top, the surface of support pontoon is equipped with the sliding groove around the up and down of support pontoon, the groove side wall of sliding groove is equipped with the limiting groove, The slag removal unit includes a transmission wheel, a conveying chain and a scraper. The transmission wheel is rotatably connected to the mounting plate. The conveying chain is located above the extension platform and is in transmission connection with the transmission wheel. The conveying chain is located between the support pontoon and the mounting plate. The conveying chain is provided with a connecting block. The conveying chain is located outside the projection of the support pontoon on the projection of the mounting plate. The both ends of the plate body of the scraper are connected with connecting rods. The end of the connecting rod away from the plate body is connected with the connecting block. The side of the connecting rod close to the support pontoon is provided with a support plane slidably attached to the upper and lower surfaces of the support pontoon. The support plane is provided with a sliding block slidably matched with the sliding groove. The side wall of the sliding block is provided with a limiting block matched with the limiting groove. The side wall of the sliding block is provided with an inclined sliding groove. The distance from the inclined sliding groove to the end of the sliding block away from the support plane gradually decreases from the opening of the inclined sliding groove to the groove bottom. The inclined sliding groove is slidably matched with the limiting block and can accommodate the entire limiting block. The limiting groove corresponds to the opening of the inclined sliding groove and can slidably accommodate part of the limiting block.

2. The reinforced air floatation device for sewage treatment according to claim 1, characterized in that, The inclined sliding groove and the limiting block extend in a straight line direction.

3. The reinforced air floatation device for sewage treatment according to claim 2, characterized in that, In the height direction of the scraper, the groove bottom width of the limiting groove matches the width of the limiting block. The opening width of the limiting groove is greater than the width of the limiting block. The opening of the limiting groove is located outside the opening of the inclined sliding groove.

4. The reinforced type air floatation device for sewage treatment according to claim 2 or 3, characterized by When the limiting block slides to the groove bottom of the limiting groove, 1 / 3-2 / 3 of the limiting block is accommodated in the limiting groove.

5. The reinforced air floatation device for sewage treatment according to claim 2 or 3, characterized in that, The sliding block is provided with a limiting side plane corresponding to the groove side wall of the sliding groove. The limiting side plane is slidably attached to the groove side wall of the sliding groove.

6. The reinforced air floatation device for sewage treatment according to claim 1, wherein The end of the sliding block away from the support plane is provided with a roller rollingly matched with the sliding groove.

7. The reinforced air floatation device for sewage treatment according to claim 1, characterized in that, The end of the sliding block away from the support plane is provided with an inclined protrusion. The inclined protrusion is located in the front side of the sliding block in the sliding direction. The distance from the inclined protrusion to the side of the sliding block gradually increases in the direction close to the end of the sliding block away from the support plane.

8. The reinforced air floatation device for sewage treatment according to claim 1, characterized in that, The plate body and the connecting rod are integrally connected.

9. The reinforced air floatation device for sewage treatment according to claim 1, characterized in that, ​

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