Raw water coagulant adding device

Abstract

The utility model discloses a raw water coagulant dosing device which comprises a mounting frame, a diluting tank is fixed on the mounting frame, a liquid outlet pipe is mounted at the bottom of the diluting tank, a connecting frame is fixed on the diluting tank, a cover plate is mounted on the diluting tank, the cover plate is fixed on the connecting frame through a bolt, and a water outlet pipe is mounted on the connecting frame. A stirring mechanism is installed at the bottom of the cover plate and inserted into the liquid outlet pipe, a connecting pipe is installed on the side face of the diluting tank, a three-way pipe is installed on the connecting pipe, and a liquid inlet pipe and a chemical adding pipe are installed on the side face and the top of the three-way pipe respectively. Compared with the prior art, a coagulant and dilution water are introduced into the dilution tank by arranging the connecting pipe, the three-way pipe, the liquid inlet pipe and the dosing pipe, and then the coagulant and the dilution water are fully stirred by utilizing the stirring mechanism, so that the coagulant is dissolved in the dilution water and then enters the raw water storage tank through the liquid outlet pipe; the coagulant enters raw water after being fully dissolved, so that the use efficiency of the coagulant is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of raw water treatment, in particular to a raw water coagulant dosing device. Background Art

[0002] Raw water generally refers to natural water sources collected from nature, such as groundwater, mountain spring water, reservoir water, etc., without any artificial purification treatment. These water sources are taken from natural water bodies or water storage bodies, such as rivers, lakes, ponds or underground aquifers, and are important sources of water supply.

[0003] Since raw water contains more impurities, it is necessary to add chemicals to the raw water for treatment. Among them, coagulant is a common chemical. Coagulant is used to condense impurities in water into larger clumps, and then the raw water is filtered to remove impurities in the raw water. The traditional way of adding is to put the coagulant directly into the treatment tank, and then use stirring and other methods to promote the dissolution of the coagulant. However, in actual use, the coagulant cannot be fully dissolved within the specified time, and there are certain shortcomings in its use. For this reason, we propose a raw water coagulant dosing device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a raw water coagulant dosing device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A raw water coagulant dosing device comprises a mounting frame, a dilution tank is fixed on the mounting frame, a liquid outlet pipe is installed at the bottom of the dilution tank, a connecting frame is fixed on the dilution tank, a cover plate is installed on the dilution tank, the cover plate is fixed to the connecting frame by bolts, a stirring mechanism is installed at the bottom of the cover plate, the stirring mechanism is inserted into the liquid outlet pipe, a connecting pipe is installed on the side of the dilution tank, a tee is installed on the connecting pipe, a liquid inlet pipe and a dosing pipe are installed on the side and top of the tee respectively, and a sealing cover is installed on the top of the dosing pipe.

[0007] Preferably, the stirring mechanism includes a shell fixed to the bottom of the cover plate and a motor installed on the top of the cover plate, the shell is a hollow cylindrical structure, a gear ring is installed inside the shell, the bottom of the shell is rotatably connected to a turntable, the output shaft of the motor is inserted into the shell and connected to a first gear, the output shaft of the motor passes through the turntable and is connected to a feeding screw, one end of the top of the turntable is rotatably connected to a rotating shaft, the top of the rotating shaft is fixedly sleeved with a second gear, and a stirring blade is installed at the bottom of the rotating shaft.

[0008] Preferably, the ring gear and the second gear are in meshing transmission, and the first gear and the second gear are in meshing transmission.

[0009] Preferably, the feeding screw is inserted into the liquid outlet pipe at the bottom of the dilution tank and is rotatably connected thereto.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model introduces coagulant and dilution water into a dilution tank by arranging a connecting pipe, a three-way pipe, a liquid inlet pipe and a dosing pipe, and then utilizes a stirring mechanism to fully stir the coagulant and the dilution water so that the coagulant is dissolved in the dilution water, and then enters the raw water storage tank through a liquid outlet pipe, so that the coagulant enters the raw water after being fully dissolved, thereby improving the use efficiency of the coagulant. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of a raw water coagulant dosing device proposed by the utility model;

[0013] Figure 2 for Figure 1 A front cross-sectional view of

[0014] Figure 3 for Figure 1 Cross-sectional view of the stirring mechanism.

[0015] In the figure: 1 mounting frame, 2 dilution tank, 3 connecting frame, 4 cover plate, 5 stirring mechanism, 51 shell, 52 gear ring, 53 turntable, 54 motor, 55 first gear, 56 feeding screw, 57 rotating shaft, 58 second gear, 59 stirring frame, 6 connecting pipe, 7 three-way pipe, 8 liquid inlet pipe, 9 dosing pipe. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Reference Figure 1-3A raw water coagulant dosing device comprises a mounting frame 1, a dilution tank 2 is fixed on the mounting frame 1, a liquid outlet pipe is installed at the bottom of the dilution tank 2, a connecting frame 3 is fixed on the dilution tank 2, a cover plate 4 is installed on the dilution tank 2, the cover plate 4 is fixed to the connecting frame 3 by bolts, a stirring mechanism 5 is installed at the bottom of the cover plate 4, the stirring mechanism 5 is inserted into the liquid outlet pipe, a connecting pipe 6 is installed on the side of the dilution tank 2, a three-way pipe 7 is installed on the connecting pipe 6, a liquid inlet pipe 8 and a dosing pipe 8 are respectively installed on the side and top of the three-way pipe 7, a sealing cover is installed on the top of the dosing pipe 8, the stirring mechanism 5 comprises a shell 51 fixed on the bottom of the cover plate 4 and a motor 54 installed on the top of the cover plate 4, the shell 51 is a hollow cylindrical structure, a gear ring 52 is installed inside the shell 51, a turntable 53 is rotatably connected to the bottom of the shell 51, and the output of the motor 54 The output shaft is inserted into the interior of the shell 51 and is connected to the first gear 55. The output shaft of the motor 54 passes through the turntable 53 and is connected to the feeding screw 56. One end of the top of the turntable 53 is rotatably connected to the rotating shaft 57. The top of the rotating shaft 57 is fixedly sleeved with a second gear 58. The bottom of the rotating shaft 57 is equipped with a stirring blade 59. The ring gear 52 and the second gear 58 are meshing transmission, and the first gear 58 and the second gear 58 are meshing transmission. The feeding screw 59 is inserted into the liquid outlet pipe at the bottom of the dilution tank 2 and is rotatably connected thereto. The coagulant and dilution water are introduced into the dilution tank by arranging a connecting pipe, a tee pipe, a liquid inlet pipe and a dosing pipe, and then the coagulant and the dilution water are fully stirred by a stirring mechanism to dissolve the coagulant in the dilution water, and then enter the raw water storage tank through the liquid outlet pipe, so that the coagulant enters the raw water after being fully dissolved, thereby improving the use efficiency of the coagulant.

[0018] When in use, the device fixes the mounting frame 1 in the raw water storage tank by bolts, inserts the liquid outlet pipe at the bottom of the dilution tank 2 into the raw water storage tank, connects the device to the power supply, starts the motor 54, and the output shaft of the motor 54 drives the first gear 55 and the feeding screw 56 to rotate. The feeding screw 56 rotates in the opposite direction. The first gear 55 drives the rotating shaft 57 to rotate through the meshing transmission with the second gear 58. The rotating shaft 57 drives the stirring frame 59 to rotate. The second gear 58 drives the turntable 53 to rotate through the meshing transmission with the gear ring 52. At this time, the turntable 53 drives the stirring frame 59 to rotate. At this time, an appropriate amount of coagulant is added through the dosing pipe 9. After the addition is completed, the sealing cover on the pressure pipe 9 is tightened, and then the dilution water is continuously introduced through the dosing pipe 9. The dilution water drives the coagulant into the interior of the dilution tank 2, and is diluted under the stirring of the stirring frame 59. The diluted liquid enters the raw water storage tank through the liquid outlet pipe. The undissolved coagulant will not directly enter the raw water storage tank because of the reverse rotating feeding screw 56. The device structure is simple and can effectively improve the utilization efficiency of the coagulant.

[0019] To sum up, compared with the prior art, the utility model provides a connecting pipe, a tee pipe, a liquid inlet pipe and a dosing pipe to introduce coagulant and dilution water into the dilution tank, and then uses a stirring mechanism to fully stir the coagulant and the dilution water to dissolve the coagulant in the dilution water, and then enters the raw water storage tank through the liquid outlet pipe, so that the coagulant enters the raw water after being fully dissolved, thereby improving the use efficiency of the coagulant.

[0020] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A raw water coagulant dosing device, comprising a mounting frame (1), characterized in that: A dilution tank (2) is fixed on the mounting frame (1), a liquid outlet pipe is installed at the bottom of the dilution tank (2), a connecting frame (3) is fixed on the dilution tank (2), a cover plate (4) is installed on the dilution tank (2), the cover plate (4) is fixed to the connecting frame (3) by bolts, a stirring mechanism (5) is installed at the bottom of the cover plate (4), the stirring mechanism (5) is inserted into the liquid outlet pipe, a connecting pipe (6) is installed on the side of the dilution tank (2), a three-way pipe (7) is installed on the connecting pipe (6), a liquid inlet pipe (8) and a dosing pipe (9) are installed on the side and top of the three-way pipe (7), respectively, and a sealing cover is installed on the top of the dosing pipe (9).

2. A raw water coagulant dosing device according to claim 1, characterized in that: The stirring mechanism (5) comprises a shell (51) fixed to the bottom of the cover plate (4) and a motor (54) installed on the top of the cover plate (4); the shell (51) is a hollow cylindrical structure; a gear ring (52) is installed inside the shell (51); a turntable (53) is rotatably connected to the bottom of the shell (51); an output shaft of the motor (54) is inserted into the inside of the shell (51) and is connected to a first gear (55); the output shaft of the motor (54) passes through the turntable (53) and is connected to a feeding screw (56); one end of the top of the turntable (53) is rotatably connected to a rotating shaft (57); a second gear (58) is fixedly sleeved on the top of the rotating shaft (57); and a stirring blade (59) is installed at the bottom of the rotating shaft (57).

3. A raw water coagulant dosing device according to claim 2, characterized in that: The gear ring (52) and the second gear (58) are in meshing transmission, and the first gear (55) and the second gear (58) are in meshing transmission.

4. A raw water coagulant dosing device according to claim 2, characterized in that: The feeding screw (56) is inserted into the liquid outlet pipe at the bottom of the dilution tank (2) and is rotatably connected thereto.

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