Water treatment coagulation reaction tank for drinking water

Abstract

The utility model relates to the technical field of coagulation reaction, and discloses a water treatment coagulation reaction tank for drinking water, which comprises a mixed reaction tank, a medicine spraying pipe is horizontally arranged on the mixed reaction tank, a medicine outlet port of the medicine spraying pipe is positioned in the mixed reaction tank, a circulating pipe is arranged on the mixed reaction tank, and a water outlet port of the circulating pipe is positioned in the mixed reaction tank. The two ends of the circulating pipe are communicated with the mixed reaction tank in an up-down arrangement state, and a water outlet port of the circulating pipe is opposite to a pesticide outlet port of the pesticide spraying pipe. Coagulant liquid is sprayed into the mixed reaction tank from the chemical spraying pipe, meanwhile, sewage in the mixed reaction tank is pumped and sprayed out by the circulating pipe, and the sprayed sewage and the sprayed coagulant liquid generate intense collision above the water surface of the mixed reaction tank, so that the coagulant liquid and the sewage are quickly mixed, and the mixing is performed in a convection collision manner; according to the mixing reaction tank, the arrangement of a stirring device is omitted, or the volume of the stirring device is reduced, so that the water storage capacity of the mixing reaction tank is not greatly influenced while a relatively good mixing effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coagulation reaction, in particular to a water treatment coagulation reaction tank for drinking water. Background Art

[0002] Drinking water refers to water that can be directly supplied to the human body without treatment. Water is the main component of body fluids and is an important substance that constitutes cells, tissue fluids, plasma, etc. Water is the medium for all chemical reactions in the body and a platform for the transportation of various nutrients and substances. At present, the water quality treatment of drinking water generally uses coagulants for preliminary treatment. The structure of the existing drinking water coagulation reaction tank includes: treatment tank one, treatment tank two, and a stirrer, etc. First, a coagulant is added to the treatment tank one, and then the stirrer is used for stirring and mixing. The stirred water overflows into the treatment tank two, and after filtering through the treatment tank two, the water overflows into the next treatment device for subsequent treatment; however, in the coagulation reaction tank, stirring is currently basically used to mix the coagulant and sewage. However, in order to ensure a better stirring effect and generate a stronger turbulence in the reaction tank, the stirring device is usually set to a larger volume so that the stirring device can cover a wider area for stirring, thereby reducing the water storage reaction space of the reaction tank; secondly, the stirring and mixing method requires a longer time for stirring and mixing, so that the coagulation reaction efficiency of the reaction tank still has room for improvement. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a drinking water treatment coagulation reaction tank, in which a coagulant and sewage are mixed by means of convection collision, thereby eliminating the need for a stirring device or reducing the volume of the stirring device, thereby ensuring a better mixing effect while not greatly affecting the water storage capacity of the mixing reaction tank.

[0004] The purpose of the utility model is achieved through the following technical scheme: a coagulation reaction tank for drinking water treatment, comprising a mixing reaction tank, on which a spray pipe is horizontally arranged, a drug outlet port of the spray pipe is located in the mixing reaction tank, a circulation pipe is arranged on the mixing reaction tank, both ends of the circulation pipe are connected to the mixing reaction tank in an up-and-down arrangement, and a water outlet port of the circulation pipe is arranged opposite to a drug outlet port of the spray pipe.

[0005] The effect of adopting the above technical scheme is that the coagulant liquid is sprayed into the mixing reaction tank from the spray pipe, and at the same time, the circulation pipe draws the sewage in the mixing reaction tank and sprays it out. The sprayed sewage and the sprayed coagulant liquid produce a violent collision above the water surface of the mixing reaction tank, so that the coagulant liquid and the sewage are quickly mixed, thereby mixing by convection collision, eliminating the need for the stirring device, or reducing the volume of the stirring device, thereby ensuring a better mixing effect while ensuring that the water storage capacity of the mixing reaction tank will not be greatly affected.

[0006] In some embodiments, a water pump is connected to the circulation pipe to increase the water pressure of the sewage sprayed out to increase the intensity of the collision with the coagulant liquid.

[0007] In some embodiments, a stirring device is provided in the mixing reaction tank, and the stirring device includes a main shaft and a stirring shaft. The main shaft is vertically arranged, and the main shaft is hinged to the top of the mixing reaction tank through a bearing. One end of the stirring shaft is hinged to the bottom of the main shaft, and the top of the main shaft passes through the mixing reaction tank to connect to the driving mechanism, thereby eliminating the need for stirring blades, or greatly reducing the volume of the stirring blades, thereby greatly reducing the volume of the stirring device, so that the sewage can continue to be stirred in the mixing reaction tank. Under the dual effects of convection collision and stirring and mixing, the mixing efficiency is improved and the reaction time is shortened.

[0008] In some embodiments, the driving mechanism includes a motor, an intermittent gear and a gear. The motor is installed on the top of the mixing reaction tank. An intermittent gear is provided on the output shaft of the motor. The gear is provided on the main shaft. The gear is meshed with the intermittent gear. The stirring shaft rotates intermittently so that the stirring shaft does not rotate regularly, so as to break the flow direction of the water flow and generate more intense turbulence to further improve the mixing efficiency.

[0009] In some embodiments, a hinge ball is provided on the top of the stirring shaft, and a ball groove is opened at the bottom of the main shaft. The hinge ball part is adapted in the ball groove. The spherical hinge method is adopted to make centrifugal deflection occur when the stirring shaft rotates, thereby increasing the range of motion of the stirring shaft.

[0010] In some embodiments, a dosing box is provided on the side wall of the mixing reaction tank, a dosing pipe is provided on the top of the dosing box, the drug inlet port of the spraying pipe is connected to the bottom of the dosing box, and a pressure pump is connected to the spraying pipe. The pressure pump is used to increase the spraying pressure of the coagulant liquid and improve the collision intensity with the sewage.

[0011] In some embodiments, the side wall of the dosing box is connected to the mixing reaction tank through a convection tube. After the coagulant liquid is added, the water in the mixing reaction tank is pumped out by the convection tube and sprayed out from the spray pipe, so that it collides with the water sprayed from the circulation pipe to accelerate mixing.

[0012] In some embodiments, a sewage pipe is disposed at the bottom of the mixing reaction tank, and a water inlet pipe and a drainage pipe are disposed at the upper and lower side walls of the mixing reaction tank.

[0013] The beneficial effects of the utility model are:

[0014] 1. The coagulant liquid is sprayed into the mixing reaction tank from the spraying pipe. At the same time, the circulating pipe draws the sewage in the mixing reaction tank and sprays it out. The sprayed sewage and the sprayed coagulant liquid collide violently above the water surface of the mixing reaction tank, so that the coagulant liquid and the sewage are quickly mixed, thereby mixing by convection collision, eliminating the need for the stirring device or reducing the volume of the stirring device, ensuring a better mixing effect while not greatly affecting the water storage capacity of the mixing reaction tank.

[0015] 2. The setting of stirring blades is omitted, or the volume of stirring blades can be greatly reduced, which greatly reduces the volume of the stirring device, so that the sewage can continue to be stirred in the mixing reaction tank. Under the dual effects of convection collision and stirring and mixing, the mixing efficiency is improved and the reaction time is shortened.

[0016] 3. The spherical hinge method is adopted to make the centrifugal deflection occur when the stirring shaft rotates, thereby increasing the range of motion of the stirring shaft, so that the stirring shaft can disturb the water flow in a larger range to produce a greater stirring intensity, and break the direction of water flow under the action of intermittent transmission of the stirring shaft, thereby generating intense turbulence in a larger range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the internal structure of a coagulation reaction tank for drinking water treatment according to the utility model;

[0018] Figure 2 This is a schematic diagram of the external structure of a coagulation reaction tank for drinking water treatment according to the utility model;

[0019] Figure 3 This is a schematic diagram of the connection between the main shaft and the stirring shaft in a drinking water treatment coagulation reaction tank of the utility model;

[0020] In the figure, 1-mixing reaction tank, 2-spraying pipe, 3-circulation pipe, 4-water pump, 5-convection pipe, 7-main shaft, 8-stirring shaft, 9-motor, 10-intermittent gear, 11-gear, 12-articulated ball, 13-ball groove, 14-dosing box, 15-dosing pipe, 16-boosting pump, 17-drain pipe, 18-water inlet pipe, 19-drain pipe. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0022] like Figures 1 to 3 As shown, a coagulation reaction tank for drinking water treatment comprises a mixing reaction tank 1, on which a spraying pipe 2 is horizontally arranged, a drug outlet port of the spraying pipe 2 is located in the mixing reaction tank 1, a circulation pipe 3 is arranged on the mixing reaction tank 1, and both ends of the circulation pipe 3 are connected to the mixing reaction tank 1 in an up-and-down arrangement state, a water outlet port of the circulation pipe 3 is arranged opposite to the drug outlet port of the spraying pipe 2, a coagulant liquid is sprayed into the mixing reaction tank from the spraying pipe, and at the same time, the circulation pipe draws sewage in the mixing reaction tank and sprays it out, and the sprayed sewage and the sprayed coagulant liquid produce a fierce collision above the water surface of the mixing reaction tank, so that the coagulant liquid and the sewage are quickly mixed, thereby mixing in a convection collision manner, eliminating the need for a stirring device, or reducing the volume of the stirring device, while ensuring a better mixing effect, the water storage capacity of the mixing reaction tank will not be greatly affected. During specific implementation, the circulation pipe 3 and the spray pipe 2 are both arranged above the highest water level line of the mixing reaction pool 1. Since the mixing reaction pool 1 will not be filled with sewage for mixing, a water level height line will be set, otherwise the air pressure generated by the mixing will cause damage to the mixing reaction pool 1. Secondly, it is not conducive to disturbing and mixing the sewage. Therefore, there is enough space between the top of the mixing reaction pool 1 and the water surface to arrange the circulation pipe 3 and the spray pipe 2, so that the sewage sprayed from the circulation pipe 3 and the coagulant liquid sprayed from the spray pipe 2 collide above the water surface to avoid the sewage in the pool affecting the collision intensity.

[0023] Furthermore, if Figure 2 As shown, the side wall of the mixing reaction tank 1 is provided with a dosing box 14, the top of the dosing box 14 is provided with a dosing pipe 15, the drug inlet port of the spraying pipe 2 is connected to the bottom of the dosing box 14, the spraying pipe 2 is connected to a pressure pump 16, and the circulation pipe 3 is connected to a water pump 4. The coagulant liquid enters the dosing box 14 through the dosing pipe 15, and the coagulant liquid in the dosing box 14 is extracted by the pressure pump 16 and sprayed out through the spraying pipe 2, so that the coagulant is sprayed out with a large pressure and collides violently with the water sprayed from the circulation pipe 3, thereby improving the mixing effect; secondly, the side wall of the dosing box 14 is connected to the mixing reaction tank 1 through the convection pipe 5, and the convection pipe 5 is also connected to the water pump. After the coagulant liquid is added, the water in the mixing reaction tank is extracted by the convection pipe 5 and sprayed out from the spraying pipe 2, so that it collides with the water sprayed from the circulation pipe 3 to accelerate mixing. After reacting for a period of time in this way, the water in the mixing reaction tank 1 is discharged to the next treatment station for subsequent treatment.

[0024] In some embodiments, Figure 1 and Figure 3As shown, a stirring device is arranged in the mixing reaction pool 1, and the stirring device comprises a main shaft 7 and a stirring shaft 8. The main shaft 7 is arranged vertically, and the main shaft 7 is hinged at the top of the mixing reaction pool 1 through a bearing, and one end of the stirring shaft 8 is hinged at the bottom of the main shaft 7. A hinge ball 12 is arranged at the top of the stirring shaft 8, and a ball groove 13 is provided at the bottom of the main shaft 7. The hinge ball 12 is partially adapted in the ball groove 13. The rotation of the main shaft 7 will drive the stirring shaft 8 to rotate. Since the stirring shaft 8 and the main shaft 7 are spherically hinged, the stirring shaft 8 will be affected by centrifugal force during the process of the main shaft 7 driving the stirring shaft 8 to rotate. Under the action of centrifugal force, the stirring shaft 8 is centrifugally deflected for stirring, thereby improving the stirring range of the stirring shaft 8. A stirring blade is arranged on the stirring shaft 8. The volume of the stirring blade does not need to be too large, and it only needs to be able to stir the water flow. The top of the main shaft 7 passes through the mixing reaction pool 1 to connect the driving mechanism. The driving mechanism The structure includes a motor 9, an intermittent gear 10 and a gear 11. The motor 9 is installed on the top of the mixing reaction tank 1. The intermittent gear 10 is arranged on the output shaft of the motor 9. The gear 11 is arranged on the main shaft 7. The gear 11 is meshed with the intermittent gear 10. The motor 9 drives the main shaft 7 to rotate through the meshing of the intermittent gear 10 and the gear 11. Due to the setting of the intermittent gear 10, the stirring shaft 8 rotates intermittently. When the stirring shaft 8 stops rotating, the stirring shaft 8 will move to a static position, thereby breaking the movement direction of the water flow, so that the water flow in the mixing reaction tank 1 is strongly disturbed, so that it has a better mixing effect than the traditional directional stirring method, thereby shortening the reaction time; in specific implementation, while the convection collision mixing, the stirring device also operates to stir and mix the sewage in the tank. Under the dual effects of convection collision and stirring and mixing, the mixing efficiency is greatly improved.

[0025] In some embodiments, a sewage pipe 17 is provided at the bottom of the mixing reaction tank 1 to discharge the coagulated sediment, and an inlet pipe 18 and a drain pipe 19 are provided on the upper and lower side walls of the mixing reaction tank 1. The sewage is discharged into the mixing reaction tank 1 through the inlet pipe 18 for reaction, and the sewage in the mixing reaction tank 1 is discharged to the next treatment station through the drain pipe 19 for subsequent treatment.

Claims

1. A drinking water treatment coagulation reaction tank, comprising a mixing reaction tank (1), characterized in that: A medicine spraying pipe (2) is horizontally arranged on the mixing reaction pool (1), and a medicine outlet port of the medicine spraying pipe (2) is located in the mixing reaction pool (1). A circulation pipe (3) is arranged on the mixing reaction pool (1), and both ends of the circulation pipe (3) are connected to the mixing reaction pool (1) in an up-and-down arrangement, and a water outlet port of the circulation pipe (3) is arranged opposite to a medicine outlet port of the medicine spraying pipe (2).

2. A drinking water treatment coagulation reaction tank according to claim 1, characterized in that: The circulation pipe (3) is connected to a water pump (4).

3. The drinking water treatment coagulation reaction tank according to claim 1, characterized in that: A stirring device is arranged in the mixing reaction tank (1), and the stirring device comprises a main shaft (7) and a stirring shaft (8). The main shaft (7) is arranged vertically, and the main shaft (7) is hinged to the top of the mixing reaction tank (1) through a bearing. One end of the stirring shaft (8) is hinged to the bottom of the main shaft (7), and the top of the main shaft (7) passes through the mixing reaction tank (1) to connect to a driving mechanism.

4. A drinking water treatment coagulation reaction tank according to claim 3, characterized in that: The driving mechanism comprises a motor (9), an intermittent gear (10) and a gear (11); the motor (9) is mounted on the top of the mixing reaction tank (1); the intermittent gear (10) is arranged on the output shaft of the motor (9); the gear (11) is arranged on the main shaft (7); and the gear (11) meshes with the intermittent gear (10).

5. The drinking water treatment coagulation reaction tank according to claim 3, characterized in that: A hinge ball (12) is arranged at the top of the stirring shaft (8), a ball groove (13) is opened at the bottom of the main shaft (7), and the hinge ball (12) is partially fitted in the ball groove (13).

6. The drinking water treatment coagulation reaction tank according to claim 1, characterized in that: The side wall of the mixing reaction tank (1) is provided with a drug adding box (14), the top of the drug adding box (14) is provided with a drug adding pipe (15), the drug inlet port of the drug spraying pipe (2) is connected to the bottom of the drug adding box (14), and the drug spraying pipe (2) is connected to a pressure pump (16).

7. A drinking water treatment coagulation reaction tank according to claim 6, characterized in that: The side wall of the drug adding box (14) is connected to the mixing reaction tank (1) via a convection pipe (5).

8. The drinking water treatment coagulation reaction tank according to claim 1, characterized in that: A sewage pipe (17) is arranged at the bottom of the mixing reaction tank (1), and a water inlet pipe (18) and a drainage pipe (19) are arranged at the upper and lower sides of the side walls of the mixing reaction tank (1).

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