Slag scraping device for air floatation tank

Abstract

The slag scraping device comprises two side plates, a portal frame is jointly and fixedly connected to one sides of the top ends of the two side plates, a driving shaft and a driven shaft are rotationally connected between the two side plates through bearings and located at the two ends of the side plates, driving chain wheels are fixed to the two ends of the driving shaft, and driving chain wheels are fixed to the two ends of the driven shaft. And driven chain wheels are fixed at two ends of the driven shaft. According to the slag scraping device, the two side plates, the portal frame, the driving shaft, the driven shaft, the driving chain wheel, the driven chain wheel, the chain and the slag scraping assembly are arranged, the slag scraping assembly comprises the vertical rod, the sleeve, the spring and the scraping plate, and when the chain drives the scraping plate to move and the scraping plate makes contact with a slag guide plate of the air floatation tank, the spring is compressed; due to the fact that the bottom of the scraping plate can be in close contact with the scum guide plate through extrusion of the spring, the scraping plate can extend downwards into sewage through the design mode, more scum can be scraped at a time, and the scraping plate is detachable and convenient to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially relates to a kind of slagging device for air flotation tank. BACKGROUND

[0002] Air flotation tank refers to a kind of pool mainly using a large number of micro-bubbles to capture and adsorb small particles of glue to make it float, to achieve the effect of solid-liquid separation. Air flotation tank is generally composed of flocculation chamber, bubble contact chamber and separation chamber. Respectively, it has the functions of forming and growing flocculation in water, micro-bubbles adhering to flocculation, capturing, and separating gas flocculation and water. In addition to air flotation tank itself, other auxiliary facilities are also needed, such as pressure gas flotation tank, which needs to be equipped with pressure gas tank and gas release device. The top of the air flotation tank needs to be provided with a slagging device to scrape the floating slag into the slag collection groove of the air flotation tank.

[0003] The side of the air flotation tank close to the slag collection groove is provided with an inclined guide plate. During the movement of the scraper of the slagging device, the floating slag is scraped to the surface of the guide plate, and the floating slag enters the slag collection groove along the guide plate. However, due to the limitation of the guide plate, the scraper of the slagging device is generally located on the surface of the sewage, and cannot be inserted too deep into the sewage, otherwise the guide plate will block the movement of the scraper. If the surface of the sewage has thick floating slag, the scraper can only scrape a small amount of floating slag on the surface during one movement. Secondly, when the scraper scrapes the floating slag, the floating slag will stick to the surface of the scraper. The current slagging device does not have a mechanism to clean the floating slag on the surface of the scraper. As the scraper moves, the floating slag on the surface of the scraper will return to the air flotation tank. Therefore, in view of the above shortcomings, the utility model provides a slagging device for air flotation tank. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a slagging device for air flotation tank.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a slagging device for air flotation tank, including two side plates, the top end of the two side plates is fixedly connected with a gantry on one side, the two side plates are rotatably connected with a driving shaft and a driven shaft through a bearing, and the driving shaft and the driven shaft are located at the two ends of the side plate, the two ends of the driving shaft are fixedly connected with a driving sprocket, the two ends of the driven shaft are fixedly connected with a driven sprocket, the same side driving sprocket and driven sprocket are sleeved with a chain on the surface, a plurality of slagging components are fixedly connected on the surface of the two chains, and a slag cleaning component is installed in the gantry.

[0006] Further, a motor is installed near the driving shaft of any side plate, and the driving shaft is fixedly connected with the driving end of the motor.

[0007] Further, the slag scraping assembly comprises a scraper, two mounting plates are fixed on both sides of the top end of the scraper, a connecting plate is fixed on the upper surface of each mounting plate, a sleeve is fixedly connected to the upper surface of each connecting plate, a vertical rod is slidably connected to the inside of the sleeve, the vertical rod is fixedly connected to the corresponding side of the chain at the top end, and a spring is fixedly connected to the bottom end of the vertical rod and the inner bottom wall of the sleeve.

[0008] Further, a screw rod is fixed on the upper surface of the mounting plate, a perforation for penetrating the screw rod is formed on the connecting plate, and the top end of the screw rod penetrates the perforation and is connected with a nut on the surface.

[0009] Further, the slag scraping assembly comprises a scraper, two mounting plates are fixed on both sides of the top end of the scraper, a connecting plate is fixed on the upper surface of each mounting plate, a sleeve is fixedly connected to the upper surface of each connecting plate, a vertical rod is slidably connected to the inside of the sleeve, the vertical rod is fixedly connected to the corresponding side of the chain at the top end, and a spring is fixedly connected to the bottom end of the vertical rod and the inner bottom wall of the sleeve.

[0010] Further, the bottom end of each side plate is designed to be bent, and the bottom of the side plate is provided with a mounting hole.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. In use, the slag scraping device for air flotation tank is provided with two side plates, a portal frame, a driving shaft, a driven shaft, a driving sprocket, a driven sprocket, a chain and a slag scraping assembly.

[0013] 2. In use, the slag scraping device for air flotation tank is provided with a slag cleaning assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed in the specific implementation manner. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 The overall perspective view of the present application;

[0016] Figure 2 The sectional view of the present application after installation with the air flotation tank;

[0017] Figure 3 Figure 2 is a plan view of the air floatation tank installation of the utility model;

[0018] Figure 4 The utility model discloses Figure 2 Figure 4 is an enlarged view of part A in figure 3.

[0019] The reference signs are as follows:

[0020] 1, side plate; 2, gantry; 3, driving shaft; 4, driven shaft; 5, driving sprocket; 6, driven sprocket; 7, chain; 8, slag scraping assembly; 81, vertical rod; 82, sleeve; 83, spring; 84, connecting plate; 85, mounting plate; 86, scraper; 87, screw; 9, slag cleaning assembly; 91, horizontal pipe; 92, vertical pipe; 93, air jet; 10, motor; 11, air floatation tank. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] As Figures 1-4 shown, it relates to a kind of slag scraping devices for air floatation tank, including two side plates 1, two side plates 1 top one side jointly fixed connection has gantry 2, two side plates 1 between rotation connection has driving shaft 3 and driven shaft 4 by bearing, and driving shaft 3 and driven shaft 4 are located at the both ends of side plate 1, driving shaft 3 both ends are fixed with driving sprocket 5, driven sprocket 6 is fixed with the both ends of driven shaft 4, same side driving sprocket 5 and driven sprocket 6 surface sleeve joint has chain 7, the surface of two chains 7 is fixedly connected with multiple slag scraping assemblies 8, and gantry 2 is installed with slag cleaning assembly 9 in the inside.

[0023] Any side plate 1 is installed with motor 10 near driving shaft 3, and driving shaft 3 is fixedly connected with the driving end of motor 10.

[0024] After driving shaft 3 is rotated by motor 10, it will drive chain 7 to rotate, to drive multiple slag scraping assemblies 8 to rotate.

[0025] Slag scraping assembly 8 includes scraper 86, and the top of both sides of scraper 86 is fixed with two mounting plates 85, and the upper surface of two mounting plates 85 is fixedly connected with connecting plate 84, the upper surface of each connecting plate 84 is fixedly connected with sleeve 82, sleeve 82 is slidably connected with vertical rod 81 in the inside, and the top of vertical rod 81 is fixedly connected with the chain 7 of corresponding side, and the bottom of vertical rod 81 is fixedly connected with spring 83 with the inner bottom wall of sleeve 82.

[0026] When the chain 7 moves, the scraper 86 will scrape the floating sludge on the surface of the sewage to the side of the sludge guide plate of the air flotation tank, and when the scraper 86 is in contact with the sludge guide plate, the spring 83 will be pressed, and the reaction force of the spring 83 will press the scraper 86 on the surface of the sludge guide plate, so that the scraper 86 can be in full contact with the sludge guide plate, and more floating sludge can be scraped at one time.

[0027] The upper surface of the mounting plate 85 is fixed with a screw rod 87, and the connecting plate 84 is provided with a through hole for passing through the screw rod 87, and the top end of the screw rod 87 passes through the through hole and is connected with a nut on the surface.

[0028] Therefore, the mounting plate 85 at the top of the scraper 86 is fixed to the lower surface of the connecting plate 84 through the screw rod 87 and the nut, so that the scraper 86 can be disassembled and replaced.

[0029] The sludge cleaning assembly 9 includes a horizontal pipe 91 fixed to the top of the gantry 2, and a plurality of curved vertical pipes 92 are fixed to the lower surface of the horizontal pipe 91, and a jet nozzle 93 is fixedly installed at the bottom end of the vertical pipe 92, and one end of the horizontal pipe 91 is connected with an air pump.

[0030] When the scraper 86 moves to the surface of the sludge guide plate of the air flotation tank, air is pumped into the horizontal pipe 91 and the vertical pipe 92 through the air pump, and the air is quickly sprayed along the jet nozzle 93, and the floating sludge on the surface of the scraper 86 is blown into the sludge collecting groove of the air flotation tank by the high-speed airflow, so that the floating sludge adhered to the surface of the scraper 86 is cleaned.

[0031] The bottom end of each side plate 1 is designed to be bent, and the bottom of the side plate 1 is provided with a mounting hole. The two side plates 1 can be installed and fixed on the pool body of the air flotation tank through the mounting holes at the bottom (as shown in Figure 2 and Figure 3 ).

[0032] Working principle: when the sludge scraping device is used, the motor 10 drives the chain 7 to rotate, the chain 7 drives a plurality of sludge scraping assemblies 8 to move, the scraper 86 of the sludge scraping assembly 8 will scrape the floating sludge on the surface of the sewage tank to the surface of the sludge guide plate of the air flotation tank, and the floating sludge will enter the sludge collecting groove along the sludge guide plate, when the scraper 86 moves to the surface of the sludge guide plate, the high-speed airflow sprayed by the jet nozzle 93 blows the floating sludge on the surface of the scraper 86 to the sludge collecting groove of the air flotation tank, so that the floating sludge adhered to the surface of the scraper 86 is cleaned.

[0033] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A skimming device for a flotation tank, characterized in that: The utility model provides a scrapingslag assembly and a slag cleaning device, and relates to the field of slag cleaning devices, and can realize the automatic cleaning of slag.

2. A device for removing sludge from a flotation tank according to claim 1, characterized in that: Any said side plate (1) is installed motor (10) near drive shaft (3), drive shaft (3) with motor (10) drive end fixed connection.

3. A device for removing sludge from a floatation tank according to claim 1, characterized in that: The upper surface of the mounting plate (85) is fixed with a screw rod (87), and the connecting plate (84) is provided with a through hole for penetrating the screw rod (87).

4. A skimming device for a flotation tank according to claim 1, characterized in that: The slag cleaning assembly (9) comprises a horizontal pipe (91) fixed to the top of the portal frame (2), and a plurality of curved vertical pipes (92) are fixed to the lower surface of the horizontal pipe (91), a jet nozzle (93) is fixedly installed at the bottom end of the vertical pipe (92), and one end of the horizontal pipe (91) is connected with a gas pump.

5. A skimming device for a flotation tank according to claim 1, characterized in that: The bottom ends of the two side plates (1) are designed to be bent, and the bottom of the side plate (1) is provided with a mounting hole.

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