Dosing device for sewage treatment

Abstract

The utility model discloses a sewage treatment dosing device which comprises a conveying pipe, the whole inner pipe wall of the conveying pipe is in an hourglass shape, the two sides of the conveying pipe are gradually folded towards the middle, two sets of spiral guide vanes are fixedly connected to the inner wall of the conveying pipe in a bilateral symmetry mode, six connecting holes are evenly formed in the position, close to the center, in the conveying pipe, and the connecting holes are distributed in a circular mode. A liquid outlet is formed in the inner wall of the conveying pipe, the liquid outlet is communicated with the interior of the connecting hole, a conveying connecting port is fixedly connected to the outer wall of the conveying pipe, and the conveying connecting port is communicated with the interior of the connecting hole. Through two groups of spiral guide vanes which are symmetrically arranged, sewage in the conveying pipe can be in a disordered state, meanwhile, the interior of the conveying pipe is in an hourglass state, the flow speed of the sewage in the middle of the conveying pipe can be increased, at the moment, an agent is injected into the conveying pipe through a liquid outlet, and the agent can be rapidly mixed with the sewage; the injection of the medicament can be completed in the sewage conveying process, so that the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a dosing device, in particular to a dosing device for sewage treatment. Background Art

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering, and is increasingly entering the daily lives of ordinary people. In sewage treatment, it is usually necessary to add specific chemicals to the sewage for treatment, and a dosing device is required.

[0003] For example, a sewage treatment dosing device disclosed in a Chinese patent with the publication number CN218962491U includes a cylinder, a sewage inlet is provided on the right side of the cylinder, a grinding device is fixedly installed on the right side of the top of the cylinder, a spiral tube is connected to the bottom of the grinding device, and the right side of the spiral tube is connected to the sewage inlet, a motor 1 is fixedly installed on the top of the cylinder, a stirring rod is connected to the top of the output end of the motor 1, stirring blades are connected to the peripheral side of the stirring rod, and the stirring blades are spiral-shaped. A conical water outlet is provided at the bottom of the cylinder, a filter is installed on the upper surface of the conical water outlet, and a valve 1 is provided at the bottom of the conical water outlet. The grinding device grinds the granular medicine, and the ground medicine falls into the spiral tube for preliminary mixing with the sewage. The automatic grinding and spraying of medicine reduces the labor intensity of the staff, and the second motor drives the stirring rod and the stirring blades to further stir and mix the sewage, which can quickly and evenly mix the medicine in the sewage to avoid floating on the water surface, thereby improving the sewage treatment efficiency;

[0004] Some problems were found during the use of an existing sewage treatment dosing device. First, after pumping the agent, the agent liquid and sewage need to be mixed and stirred by a stirring mechanism. When the sewage is added too quickly, it will cause the agent liquid to be difficult to mix evenly in the sewage. Utility Model Content

[0005] The purpose of the utility model is to provide a sewage treatment dosing device to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewage treatment dosing device, comprising a delivery pipe, the inner wall of the delivery pipe is hourglass-shaped as a whole, and the two sides gradually converge toward the middle, the inner wall of the delivery pipe is symmetrically fixed with two groups of spiral guide blades, six connecting holes are evenly opened near the center of the delivery pipe, and the connecting holes are distributed in a circular shape, the inner wall of the delivery pipe is opened with a drainage port, and the drainage port is communicated with the inside of the connecting hole, the outer wall of the delivery pipe is fixed with a delivery connection port, and the delivery connection port is communicated with the inside of the connecting hole, and a medicine storage tank is fixed on the delivery pipe.

[0007] Preferably, connecting flanges are fixedly connected at both ends of the delivery pipe.

[0008] Preferably, a return spring is fixedly connected in the connecting hole, and a piston is fixedly connected to the other end of the return spring.

[0009] Preferably, a pump is fixedly connected in the medicine storage tank, and an output end of the pump is connected to a ring-shaped infusion tube via a hose.

[0010] Preferably, the annular infusion tube is sleeved on the delivery tube, the annular infusion tube is communicated with the inside of the delivery connection port, and a filling port is fixedly connected to the medicine storage tank.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Through the two sets of symmetrically arranged spiral guide blades, the sewage inside the conveying pipe can be in a chaotic state. At the same time, the inside of the conveying pipe is in an hourglass state. The flow rate of sewage in the middle of the conveying pipe will increase. At this time, the agent is added into the conveying pipe through the discharge port. The agent will quickly mix with the sewage. The filling of the agent can be completed during the sewage transportation process, thereby increasing the sewage treatment efficiency.

[0013] 2. The return spring provided can provide a certain thrust for the piston. The piston will move forward under the thrust and get stuck in the connection hole connecting the delivery connection port and the discharge port, thereby blocking the connection hole to prevent the sewage from flowing back into the medicine storage tank through the discharge port during normal sewage transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a half-section diagram of the delivery pipe of the utility model;

[0017] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle.

[0018] In the figure: 1. delivery pipe; 101. connecting flange; 102. spiral guide vane; 2. connecting hole; 201. delivery connection port; 202. discharge port; 203. return spring; 204. piston; 3. medicine storage tank; 301. pump; 302. annular infusion pipe; 303. filling port. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a sewage treatment dosing device, including a delivery pipe 1, the inner wall of the delivery pipe 1 is in an hourglass shape as a whole, and the two sides gradually converge toward the middle. Two groups of spiral guide blades 102 are symmetrically fixed to the inner wall of the delivery pipe 1, and six connecting holes 2 are evenly opened near the center of the delivery pipe 1. The connecting holes 2 are distributed in a circular shape. A drainage port 202 is opened on the inner wall of the delivery pipe 1, and the drainage port 202 is communicated with the inside of the connecting hole 2. A delivery connection port 201 is fixed to the outer wall of the delivery pipe 1, and the delivery connection port 201 is communicated with the inside of the connecting hole 2. A medicine storage tank 3 is fixed on the delivery pipe 1.

[0021] In this embodiment, by connecting the device in series in the sewage conveying pipeline, the interior of the conveying pipe 1 is in an hourglass shape as a whole, and the middle aperture is small, so that the sewage flows through the middle of the conveying pipe 1. Due to the reduction in the aperture, the flow rate of the sewage in the middle of the conveying pipe 1 will increase. At the same time, two groups of spiral guide blades 102 are symmetrically arranged inside the conveying pipe 1. Each group of spiral guide blades 102 consists of three spiral guide blades 102. The group of spiral guide blades 102 at the front end will guide the sewage to rotate clockwise, and the group of spiral guide blades 102 at the rear end will guide the sewage to rotate counterclockwise. The clockwise rotation causes the sewage to become chaotic in the middle. At this time, the agent is pumped into the connecting hole 2 through the delivery connection port 201. The pumping of the agent will have a certain pressure, pushing the piston 204 to move and compressing the return spring 203. When the piston 204 moves to the rear of the discharge port 202, the agent will be pumped into the delivery pipe 1 through the discharge port 202. The discharge port 202 is located in the middle of the delivery pipe 1, so the agent will be directly delivered to the middle of the delivery pipe 1. Since the sewage in the middle is chaotic, the agent and the sewage can be fully mixed together.

[0022] In order to prevent sewage from flowing back, the device is implemented by the following technical scheme: connecting flanges 101 are fixedly connected at both ends of the delivery pipe 1, a return spring 203 is fixedly connected in the connecting hole 2, and a piston 204 is fixedly connected to the other end of the return spring 203.

[0023] The device is connected to the sewage conveying pipeline through the connecting flange 101, and the return spring 203 can provide a certain thrust for the piston 204. The piston 204 is pushed forward and stuck in the connecting hole 2 connecting the conveying connection port 201 and the discharge port 202, thereby blocking the connecting hole 2 to prevent the sewage from flowing back into the medicine storage tank 3 through the discharge port 202 during normal sewage conveying.

[0024] Among them, in order to achieve the purpose of pumping medicine, the present device adopts the following technical scheme: a pump 301 is fixedly connected to the medicine storage tank 3, and the output end of the pump 301 is connected to a ring-shaped infusion tube 302 through a hose, the ring-shaped infusion tube 302 is sleeved on the delivery pipe 1, and the ring-shaped infusion tube 302 is communicated with the inside of the delivery connection port 201, and a filling port 303 is fixedly connected to the medicine storage tank 3.

[0025] A certain amount of medicine can be stored in the medicine storage tank 3. When the medicine needs to be added to the sewage, the pump 301 can be started to pump the sewage into the annular infusion tube 302, and then transported to the delivery connection port 201 through the annular infusion tube 302. The pumped medicine has a certain pressure, which can push the piston 204 to move backward and be compressed by the return spring 203. When the piston 204 moves to the rear of the discharge port 202, the medicine can be pumped into the delivery pipe 1 through the discharge port 202.

[0026] The working principle and use process of the utility model are as follows: when in use, the delivery pipe 1 needs to be connected in series in the sewage delivery pipe through the connecting flange 101, and the filling port 303 is opened to add a certain amount of prepared medicine into the medicine storage tank 3, and the pump 301 is started to pump the medicine into the annular infusion pipe 302, and then the medicine is respectively delivered to the delivery connection port 201 through the annular infusion pipe 302, and finally pumped into the delivery pipe 1 through the discharge port 202. Since the sewage flow rate at the center of the delivery pipe 1 is fast and chaotic, the medicine added in will quickly mix with the sewage.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment dosing device, comprising a delivery pipe (1), characterized in that: The inner wall of the delivery pipe (1) is in an hourglass shape as a whole, with both sides gradually converging toward the middle. Two groups of spiral guide blades (102) are symmetrically fixedly connected to the inner wall of the delivery pipe (1). Six connecting holes (2) are evenly arranged near the center of the delivery pipe (1). The connecting holes (2) are distributed in a circular shape. A drainage port (202) is arranged on the inner wall of the delivery pipe (1). The drainage port (202) is communicated with the inside of the connecting hole (2). A delivery connecting port (201) is fixedly connected to the outer wall of the delivery pipe (1). The delivery connecting port (201) is communicated with the inside of the connecting hole (2). A medicine storage tank (3) is fixedly connected to the top of the delivery pipe (1).

2. A sewage treatment dosing device according to claim 1, characterized in that: The two ends of the delivery pipe (1) are fixedly connected with connection flanges (101).

3. A sewage treatment dosing device according to claim 1, characterized in that: A return spring (203) is fixedly connected in the connection hole (2), and a piston (204) is fixedly connected to the other end of the return spring (203).

4. A sewage treatment dosing device according to claim 1, characterized in that: A pump (301) is fixedly connected inside the medicine storage tank (3), and an output end of the pump (301) is connected to a ring-shaped infusion tube (302) via a hose.

5. A sewage treatment dosing device according to claim 4, characterized in that: The annular infusion tube (302) is sleeved on the delivery tube (1), the annular infusion tube (302) is in communication with the interior of the delivery connection port (201), and a filling port (303) is fixedly connected to the medicine storage tank (3).

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