Flocculating agent feeding device for sewage treatment tank

Abstract

The utility model provides a flocculating agent feeding device for a sewage treatment tank. The flocculating agent feeding device comprises a supporting plate, a feeding pipe and a rotating disc. A guide plate is arranged below the rear end of the supporting plate, and the section of the guide plate is of an inverted isosceles trapezoid structure or an inverted isosceles triangle structure. The feeding pipe is vertically arranged above the middle of the supporting plate in a penetrating mode, the lower end of the feeding pipe penetrates through the supporting plate, and the interior of the feeding pipe is used for storing a flocculating agent. The rotating disc is of a disc structure, a plurality of inclined guide vanes are arranged on the outer wall of the rotating disc along the circumference in an array mode, the rotating disc is rotationally arranged below the front end of the supporting plate, a plurality of through holes are vertically formed in the rotating disc along the circumference, lifting columns are slidably arranged in the through holes, elastic pieces are arranged between the lifting columns and the bottom face of the rotating disc, and guide rods are vertically arranged on the side faces of the lower ends of the lifting columns. The turntable is arranged in the water inlet pipe of the sewage pool; the upper end of the feeding pipe protrudes out of the ground. According to the scheme, the dispersing speed and effect of the flocculating agent can be effectively increased, and the putting amount of the flocculating agent in unit time can be automatically controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary devices for sewage treatment, in particular to a flocculant dosing device for a sewage treatment pool. Background Art

[0002] In sewage treatment, flocculants are usually added to the sewage pool to condense the suspended matter in the sewage into flocs or clumps for easy isolation and salvage. Currently, the main method of adding flocculants is through manual spreading. This method of introduction has problems such as slow flocculant dispersion and insufficient mixing with sewage, resulting in poor treatment of suspended matter in sewage. In addition, the operator needs to sprinkle the flocculants regularly. Not only does the operator need to pay attention to the spreading time, but the operator also needs to control the amount of flocculant to be spread according to the amount of sewage entering the pool, which also poses certain management difficulties. Utility Model Content

[0003] In order to solve the deficiencies of the existing technology, the utility model provides a flocculant feeding device for a sewage treatment pool, which can effectively increase the dispersion speed and effect of the flocculant and automatically control the amount of flocculant fed per unit time.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A flocculant delivery device for a sewage treatment pool comprises a support plate, a feed pipe and a turntable.

[0006] A guide plate is provided below the rear end of the support plate. The cross section of the guide plate is an inverted isosceles trapezoid or an inverted isosceles triangle structure. The side surfaces corresponding to the two waists of the guide plate face the two sides of the support plate respectively.

[0007] The feed pipe is vertically arranged above the middle of the support plate, the lower end of the feed pipe passes through the support plate, and the inside of the feed pipe is used for storing flocculant.

[0008] The turntable is a circular disc structure, and its outer wall is provided with a plurality of inclined guide blades in an array along the circumference. The turntable is arranged below the front end of the support plate for rotation, and there is sliding contact between the top surface of the turntable and the bottom surface of the support plate. The turntable is vertically opened with a plurality of through holes along the circumference, the inner diameter of which is smaller than the minimum distance between the inner wall of the feed pipe and the support plate, and lifting columns are slidably arranged in the through holes, which are connected to the inner wall of the through holes in a sliding sealing manner. Elastic members are provided between the lifting columns and the bottom surface of the turntable, and a guide rod is vertically provided on the side surface of the lower end of the lifting column, which faces the normal direction of the turntable; when the elastic member is in a natural state, the top surface of the lifting column is flush with the top surface of the turntable, and the position of the guide rod is lower than the upper edge of the side surface of the guide plate; when the guide rod of the lifting column is at the lowest point of the guide plate, the top surface of the lifting column is lower than the predetermined distance of the top surface of the turntable, and the through hole corresponding to the lifting column is aligned with the feed pipe, and the inner diameter of the through hole is greater than or equal to the inner diameter of the feed pipe.

[0009] The turntable is arranged inside the water inlet pipe of the sewage pool, the feed pipe is fixedly penetrated through the side wall of the water inlet pipe, and the upper end of the feed pipe protrudes from the ground.

[0010] The beneficial effects of the utility model are that flocculants can be automatically added into the sewage inlet pipe, which can effectively increase the dispersion speed and effect of the flocculants, and the amount of flocculants added per unit time can be automatically controlled by the amount of water inlet into the sewage pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0012] Figure 1 The figure shows the overall structure of the preferred embodiment of the present application.

[0013] Figure 2 A cross-sectional view of a preferred embodiment of the present application is shown when the through hole is aligned with the feed tube.

[0014] Markings in the figure: support plate-1, guide plate-11, extension plate-12, feed pipe-2, storage tank-21, turntable-3, guide blade-31, through hole-32, limit plate-33, annular baffle-34, lifting column-4, guide rod-41, lifting rod-42, elastic member-5. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] like Figure 1 、 Figure 2 As shown, a flocculant delivery device for a sewage treatment pool includes: a support plate 1, a feed pipe 2 and a turntable 3.

[0017] Specifically, a guide plate 11 is provided below the rear end of the support plate 1 . The cross section of the guide plate 11 is an inverted isosceles trapezoid or an inverted isosceles triangle structure. The side surfaces corresponding to the two sides of the guide plate 11 face the two sides of the support plate 1 respectively.

[0018] Specifically, the feed pipe 2 is vertically arranged above the middle of the support plate 1 , the lower end of the feed pipe 2 passes through the support plate 1 , and the interior of the feed pipe 2 is used to store flocculant.

[0019] Specifically, the turntable 3 is a disc structure, and a plurality of guide blades 31 are arranged obliquely along the circumference of its outer wall. The turntable 3 is rotatably arranged below the front end of the support plate 1. The top surface of the turntable 3 and the bottom surface of the support plate 1 are in sliding contact. The turntable 3 is vertically provided with a plurality of through holes 32 along the circumference, and the inner diameter thereof is smaller than the minimum distance between the inner wall of the feed pipe 2 and the support plate 1. Lifting columns 4 are slidably provided in the through holes 32, and are in sliding sealing connection with the inner wall of the through holes 32. Specifically, the sliding sealing can be achieved by providing a sealing ring on the outer wall of the lifting column 4. An elastic member 5 is provided between the lifting column 4 and the bottom surface of the turntable 3, and a guide rod 41 is vertically provided on the side surface of the lower end of the lifting column 4. Towards the normal direction of the turntable 3; when the elastic member 5 is in the natural state, the top surface of the lifting column 4 is flush with the top surface of the turntable 3, and the position of the guide rod 41 is lower than the upper edge of the side of the guide plate 11; when the guide rod 41 of the lifting column 4 is located at the lowest point of the guide plate 11, the top surface of the lifting column 4 is lower than the top surface of the turntable 3 by a predetermined distance, and the top surface of the lifting column 4 and the side wall of the through hole 32 form a sinking structure for accommodating the flocculant, and the through hole 32 corresponding to the lifting column 4 is aligned with the feed pipe 2, and the inner diameter of the through hole 32 is greater than or equal to the inner diameter of the feed pipe 2. At this time, the elastic member 5 is compressed or stretched, and the specific state is determined by the connection structure between the elastic member 5, the turntable 3 and the lifting column 4.

[0020] Specifically, the turntable 3 is arranged inside the water inlet pipe of the sewage pool, the feed pipe 2 is fixedly penetrated through the side wall of the water inlet pipe, and the upper end of the feed pipe 2 protrudes from the ground to facilitate the addition of flocculant. By extending the length of the feed pipe 2, a large amount of flocculant can be stored inside it, so that it has both feeding and storage functions.

[0021] Working principle: when sewage enters the sewage tank through the water inlet pipe, the sewage will impact the guide blades 31 to make the turntable 3 rotate around the axis. During the rotation process, the through holes 32 will pass under the feed pipe 2 in sequence. Figure 2As shown, when the through hole 32 passes under the feed pipe 2, the guide rod 41 will move downward along the side of the guide plate 11 to the lowest position of the guide plate 11. At this time, the lifting column 4 will move downward relative to the turntable 3, so that the top surface of the lifting column 4 and the inner wall diameter of the through hole 32 form a countersunk structure, and at this time the through hole 32 is aligned with the feed pipe 2, and the flocculant stored inside the feed pipe 2 will fall into the countersunk hole. Because the structures of the guide plate 11 and the guide rod 41 maintain a solidified mechanical structure, the accommodating space of the countersunk hole will remain constant, and thus the volume of flocculant removed from the feed pipe 2 by each through hole 32 will also be the same. As the turntable 3 continues to rotate, the guide rod 41 moves upward from the lowest point of the guide plate 11 along the other side of the guide plate 11, and the through hole 32 gradually moves away from the bottom of the support plate 1. The flocculant on the top of the lifting column 4 is gradually discharged into the sewage. Under the elastic force of the elastic member 5, the top surface of the lifting column 4 becomes flush with the top surface of the turntable 3, thereby completely draining the flocculant in the sinking structure. After the flocculant is completely discharged, the sinking structure between the lifting column 4 and the inner wall of the through hole 32 disappears, preventing sewage from being deposited in the original sinking structure. When the through hole 32 moves below the feed pipe 2 again, the guide plate 11 will lower the lifting column 4 again through the guide rod 41, thus forming the sinking structure again. Combined with the sliding contact structure between the top surface of the turntable 3 and the bottom surface of the support plate 1, and the inner diameter of the through hole 32 being smaller than the minimum distance between the inner wall of the feed pipe 2 and the support plate 1, sewage backflow into the feed pipe 2 is effectively prevented. The discharged flocculant is dispersed into the sewage during the rotation of the turntable 3, and the agitation of the guide vanes 31 also makes the flocculant spread more evenly and more quickly. The rotation speed of the turntable 3 automatically increases or decreases with the flow rate of the water in the sewage tank inlet pipe, thereby automatically increasing or decreasing the amount of flocculant added per unit time.

[0022] Preferably, Figure 1 As shown, a storage tank 21 is provided on the top of the feed pipe 2 to store more flocculants and reduce the frequency of the operator feeding the flocculants into the feed pipe 2 .

[0023] Preferably, Figure 1 As shown, extension plates 12 are provided on both sides of the support plate 1 corresponding to the moving tracks of the through holes 32, and their width is greater than the inner diameter of the through holes 32, so as to improve the sealing range between the bottom surface of the support plate 1 and the through holes 32, and prevent sewage from entering the through holes 32 during the combination and separation process of the through holes 32 and the feed pipe 2.

[0024] Preferably, Figure 2As shown, the bottom of the turntable 3 is provided with a limit plate 33 parallel to the bottom of the corresponding lifting column 4. The bottom of the lifting column 4 is coaxially provided with a lifting rod 42 with a smaller diameter, which passes through the limit plate 33 below. The elastic member 5 is a cylindrical spring, which is sleeved on the outside of the lifting rod 42, and the outer contour of the cylindrical spring is smaller than the outer diameter of the lifting column 4. The elastic member 5 is located between the top surface of the limit plate 33 and the bottom surface of the lifting column 4, and the guide rod 41 is located below the limit plate 33. With this installation structure, the elastic member 5 is in a compressed state when the guide rod 41 is at the lowest position of the guide plate 11.

[0025] Preferably, Figure 1 、 Figure 2 As shown, an annular baffle 34 is provided at the bottom of the turntable 3 , and the elastic members 5 are all located inside the annular baffle 34 to prevent debris from entering and affecting the extension and contraction of the elastic members 5 . The guide rod 41 is located below the annular baffle 34 .

[0026] More preferably, Figure 1 、 Figure 2 As shown, the lower end of the guide vane 31 extends to the outer wall of the annular baffle 34 to increase the working area of ​​the guide vane 31 .

[0027] The above description is only a preferred embodiment of the present invention and does not represent the only embodiment or limit the present invention. It should be understood by those skilled in the art that various changes or equivalent replacements made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A flocculant delivery device for a sewage treatment pool, characterized in that: include: A support plate (1) is provided with a guide plate (11) below its rear end, the cross section of the guide plate (11) being an inverted isosceles trapezoid or an inverted isosceles triangle structure, and the side surfaces corresponding to the two sides of the guide plate (11) are respectively facing the two sides of the support plate (1); A feed pipe (2) is vertically arranged above the middle of the support plate (1), the lower end of the feed pipe (2) passes through the support plate (1), and the interior of the feed pipe (2) is used to store flocculant; The turntable (3) is a disk structure, and a plurality of guide vanes (31) are arranged in an array along the circumference of the outer wall thereof. The turntable (3) is rotatably arranged below the front end of the support plate (1). The top surface of the turntable (3) and the bottom surface of the support plate (1) are in sliding contact. The turntable (3) is vertically provided with a plurality of through holes (32) along the circumference thereof, and the inner diameter of the through holes (32) is smaller than the minimum distance between the inner wall of the feed pipe (2) and the support plate (1). Lifting columns (4) are slidably arranged in the through holes (32), and are in sliding sealing connection with the inner wall of the through holes (32). Elastic members (5) are arranged between the lifting columns (4) and the bottom surface of the turntable (3). A guide rod (41) is vertically provided on the side surface of the lower end of the lifting column (4), which faces the normal direction of the turntable (3); when the elastic member (5) is in a natural state, the top surface of the lifting column (4) is flush with the top surface of the turntable (3), and the position of the guide rod (41) is lower than the upper edge of the side surface of the guide plate (11); when the guide rod (41) of the lifting column (4) is located at the lowest point of the guide plate (11), the top surface of the lifting column (4) is lower than the top surface of the turntable (3) by a predetermined distance, and the through hole (32) corresponding to the lifting column (4) is aligned with the feed pipe (2), and the inner diameter of the through hole (32) is greater than or equal to the inner diameter of the feed pipe (2); The turntable (3) is arranged inside the water inlet pipe of the sewage pool, the feed pipe (2) is fixedly penetrated through the side wall of the water inlet pipe, and the upper end of the feed pipe (2) protrudes from the ground.

2. A flocculant delivery device for a sewage treatment pool according to claim 1, characterized in that: A material storage tank (21) is provided on the top of the feed pipe (2).

3. A flocculant dosing device for a sewage treatment pool according to claim 1, characterized in that: Extension plates (12) are provided on both sides of the support plate (1) corresponding to the movement track of the through hole (32), and the width of the extension plates (12) is greater than the inner diameter of the through hole (32).

4. The flocculant delivery device for a sewage treatment pool according to claim 1, characterized in that: The bottom of the turntable (3) is provided with a limit plate (33) parallel to the bottom of the corresponding lifting column (4). The bottom of the lifting column (4) is coaxially provided with a lifting rod (42) with a smaller diameter, which passes through the limit plate (33) below. The elastic member (5) is a cylindrical spring, which is sleeved on the outside of the lifting rod (42), and the outer contour size of the cylindrical spring is smaller than the outer diameter of the lifting column (4). The elastic member (5) is located between the top surface of the limit plate (33) and the bottom surface of the lifting column (4), and the guide rod (41) is located below the limit plate (33).

5. The flocculant delivery device for a sewage treatment pool according to claim 1, characterized in that: An annular baffle (34) is provided at the bottom of the rotating disk (3), the elastic members (5) are all located inside the annular baffle (34), and the guide rod (41) is located below the annular baffle (34).

6. A flocculant delivery device for a sewage treatment pool according to claim 5, characterized in that: The lower end of the guide vane (31) extends to the outer wall of the annular baffle (34).

Images