Releaser of air flotation machine

Abstract

The utility model discloses an air flotation machine releaser which comprises a liquid inlet pipe, a pressure reduction assembly is arranged on the lower portion of the liquid inlet pipe, the lower end of the liquid inlet pipe is communicated with a release bin, a plurality of liquid outlet holes are formed in the bottom of the release bin, a lifting cage is arranged outside the liquid inlet pipe in a covering mode, and a dredging assembly used for dredging the liquid outlet holes is arranged at the lower end of the lifting cage. The dredging assembly is arranged in the release bin, the lower portion of the lifting cage is connected with the release bin in a sealed and sliding mode, and a driving assembly used for driving the lifting cage to move up and down is arranged on the upper portion of the lifting cage. According to the utility model, the liquid outlet hole is quickly dredged by driving the mounting frame and the support pillar to move up and down, and the dredging operation can be completed without shutting down and detaching the releaser in the production process, so that the influence of the releaser blockage on the sewage treatment efficiency is effectively reduced, and the sewage treatment efficiency and stability of the air flotation machine are improved.

Description

Technical Field

[0001] The utility model relates to a releaser for an air flotation machine, in particular to a releaser which can clear blockages when the air flotation machine is working. Background Art

[0002] Flotation machine is a commonly used device for coal chemical wastewater treatment. The releaser is an important component of the flotation machine. Pressurized dissolved air water can only release a large number of fine bubbles after suddenly reducing pressure and dissipating energy through the water outlet of this component. The fine bubbles adhere to the suspended matter in the sewage to form a floating body with an overall density less than that of water and float to the liquid surface, thereby realizing the separation of oil, suspended matter and sewage.

[0003] During the process of treating sewage, if the scum surface in the contact area of ​​the flotation tank is uneven and large bubbles appear locally, it can be judged that the outlet hole of the releaser is blocked. Once the existing releaser is seriously blocked, it must be disassembled and cleared. Disassembly and clearing will inevitably lead to the shutdown of the flotation machine, which seriously affects the efficiency of sewage treatment and production convenience. Utility Model Content

[0004] Purpose of the utility model: The purpose of the utility model is to provide a flotation machine releaser to solve the problem that the existing releaser needs to be stopped and disassembled for clearing the blockage after being blocked.

[0005] Technical solution: The utility model describes an air flotation machine releaser, comprising a liquid inlet pipe, a decompression assembly being provided at the lower portion of the liquid inlet pipe, the lower end of the liquid inlet pipe being connected to a release bin, a plurality of liquid outlet holes being provided at the bottom of the release bin, the outer cover of the liquid inlet pipe being provided with a lifting cage, a dredging assembly for dredging the liquid outlet holes being provided at the lower end of the lifting cage, the dredging assembly being arranged in the release bin, the lower portion of the lifting cage being sealingly and slidably connected to the release bin, and the upper portion of the lifting cage being provided with a driving assembly for driving the lifting cage to move up and down.

[0006] Preferably, the dredging component includes a mounting frame arranged at the lower end of the pulling cage, and a plurality of top columns are provided on the mounting frame. The top columns are arranged corresponding to the liquid outlet holes, and the mounting frame and the top columns are both arranged in the release bin.

[0007] Preferably, a cover shell is further provided on the release bin, the cover shell is arranged on the outside of the pulling cage, a mounting shell is provided on the upper part of the cover shell, and the drive assembly is arranged in the mounting shell.

[0008] Preferably, the driving assembly includes a gear rotatably connected to the mounting shell and a rack arranged on the upper part of the lifting cage, the gear and the rack are meshed with each other, a slide groove is provided on the upper outer wall of the liquid inlet pipe, the rack is slidably connected in the slide groove, and a rotating handle is provided on the rotating shaft of the gear.

[0009] Preferably, the pressure reducing assembly comprises a pressure reducing plate arranged at the lower part of the liquid inlet pipe, the side wall of the pressure reducing plate is sealed and fixedly connected to the inner wall of the liquid inlet pipe, and the pressure reducing plate is provided with a pressure reducing hole with a trapezoidal cross section.

[0010] Beneficial effects: Compared with the prior art, the utility model has the following advantages: the utility model realizes rapid dredging of the liquid outlet hole by driving the mounting frame and the top column to move up and down, and the dredging operation can be completed without stopping the machine and disassembling the releaser during the production process, which effectively reduces the impact of the releaser blockage on the sewage treatment efficiency and improves the sewage treatment efficiency and stability of the flotation machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a top view of the utility model;

[0013] Figure 3 for Figure 2 Middle AA section view;

[0014] Figure 4 It is a side view of the utility model;

[0015] Figure 5 for Figure 4 Middle BB section view;

[0016] Figure 6 It is a schematic diagram of the internal structure of the utility model;

[0017] 1-release chamber, 11-cover shell, 12-mounting shell, 13-liquid outlet, 2-liquid inlet pipe, 21-slide, 3-lifting cage, 4-mounting frame, 41-top column, 5-pressure relief plate, 51-pressure relief hole, 6-rack, 7-gear, 71-turn handle. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0019] like Figure 1-6As shown, a releaser of an air floatation machine comprises a liquid inlet pipe 2, a decompression assembly is provided at the lower part of the liquid inlet pipe 2, the lower end of the liquid inlet pipe 2 is connected to a release chamber 1, a plurality of liquid outlet holes 13 are provided at the bottom of the release chamber 1, a lifting cage 3 is provided on the outer cover of the liquid inlet pipe 2, a dredging assembly for dredging the liquid outlet holes 13 is provided at the lower end of the lifting cage 3, the dredging assembly is arranged in the release chamber 1, the lower part of the lifting cage 3 is sealed and slidably connected with the release chamber 1, and a driving assembly for driving the lifting cage 3 to move up and down is provided at the upper part of the lifting cage 3. The lifting cage 3 can be composed of a plurality of metal bars and metal rings, and is arranged outside the liquid inlet pipe 2 in a cylindrical cover and does not contact the outer wall of the liquid inlet pipe 2. The design of the lifting cage can ensure that the mounting frame 4 moves smoothly as a whole when driving the single-sided metal bar. In addition, since the lifting cage 3 and the driving assembly are both arranged outside the liquid inlet pipe 2, the pressure inside the liquid inlet pipe 2 will not be affected during their movement, so that the releaser can still work normally when dredging the blockage.

[0020] In this embodiment, the dredging component includes a mounting frame 4 disposed at the lower end of the lifting cage 3, and a plurality of top columns 41 are disposed on the mounting frame 4. The top columns 41 are disposed corresponding to the liquid outlet 13, and the mounting frame 4 and the top columns 41 are both disposed in the release bin 1. When the top column 41 moves downward, it can be inserted into the liquid outlet 13 below to dredge the liquid outlet 13. The hollow design of the mounting frame 4 minimizes the resistance and disturbance to the water flow during its up and down movement. The free end of the top column 41 can be a cone to improve the dredging effect.

[0021] In this embodiment, the release bin 1 is further provided with a cover 11, which is arranged outside the lifting cage 3, and an installation shell 12 is arranged on the upper part of the cover 11, and the driving component is arranged in the installation shell 12. The cover 11 can prevent the lifting cage and other components from being immersed in sewage and corroded.

[0022] In this embodiment, the driving assembly includes a gear 7 rotatably connected to the mounting shell 12 and a rack 6 arranged on the upper part of the pulling cage 3, the gear 7 and the rack 6 are meshed with each other, a slide groove 21 is provided on the upper outer wall of the liquid inlet pipe 2, the rack 6 is slidably connected in the slide groove 21, and a rotating handle 71 is provided on the rotating shaft of the gear 7.

[0023] In this embodiment, the decompression assembly includes a decompression plate 5 disposed at the lower part of the liquid inlet pipe 2, the side wall of the decompression plate 5 is sealed and fixedly connected to the inner wall of the liquid inlet pipe 2, and the decompression plate 5 is provided with a decompression hole 51 with a trapezoidal cross-section.

[0024] Working process and principle: When the liquid outlet 13 is blocked, the gear 7 is driven to rotate by rotating the handle 71, and the gear 7 drives the rack 6 downward, and the rack 6 drives the entire lifting cage 3 downward, and the lifting cage 3 drives the mounting frame 4 and the top column 41 downward, until the top column 41 is inserted into the liquid outlet 13 below each, and the blockage in the liquid outlet 13 is pushed out, and then the gear 7 is reversed to make the top column 41 and the mounting frame 4 move upward, until the top column 41 is completely out of the liquid outlet 13, and a dredging action is completed. Repeat the above dredging action quickly for multiple times to complete the dredging operation of the liquid outlet 13.

Claims

1. An air flotation machine releaser, characterized in that: The invention comprises a liquid inlet pipe (2), the lower part of which is provided with a pressure reducing assembly, the lower end of the liquid inlet pipe (2) is connected with a release bin (1), the bottom of the release bin (1) is provided with a plurality of liquid outlet holes (13), the outer cover of the liquid inlet pipe (2) is provided with a lifting cage (3), the lower end of the lifting cage (3) is provided with a clearing assembly for clearing the liquid outlet holes (13), the clearing assembly is arranged in the release bin (1), the lower part of the lifting cage (3) is sealingly and slidably connected with the release bin (1), and the upper part of the lifting cage (3) is provided with a driving assembly for driving the lifting cage (3) to move up and down.

2. The air flotation machine releaser according to claim 1, characterized in that: The dredging component comprises a mounting frame (4) arranged at the lower end of the lifting cage (3), and a plurality of top columns (41) are arranged on the mounting frame (4). The top columns (41) are arranged corresponding to the liquid outlet holes (13), and the mounting frame (4) and the top columns (41) are both arranged in the release bin (1).

3. The air flotation machine releaser according to claim 1, characterized in that: The release bin (1) is also provided with a cover shell (11), the cover shell (11) is arranged to cover the outside of the lifting cage (3), a mounting shell (12) is arranged on the upper part of the cover shell (11), and the drive assembly is arranged in the mounting shell (12).

4. The air flotation machine releaser according to claim 3, characterized in that: The driving assembly comprises a gear (7) rotatably connected to the mounting shell (12) and a rack (6) arranged on the upper part of the lifting cage (3); the gear (7) and the rack (6) are meshed with each other; a slide groove (21) is provided on the upper outer wall of the liquid inlet pipe (2); the rack (6) is slidably connected in the slide groove (21); and a rotating handle (71) is provided on the rotating shaft of the gear (7).

5. The air flotation machine releaser according to claim 1, characterized in that: The decompression assembly comprises a decompression plate (5) arranged at the lower part of the liquid inlet pipe (2), the side wall of the decompression plate (5) is sealed and fixedly connected to the inner wall of the liquid inlet pipe (2), and the decompression plate (5) is provided with a decompression hole (51) with a trapezoidal cross section.

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