Drug sustained-release device for sewage treatment

Abstract

The utility model relates to the technical field of drug sustained-release devices for sewage treatment, and discloses a drug sustained-release device for sewage treatment, which comprises a spiral coil immersed in a sewage pool, a plurality of release holes are arranged on the spiral coil, a drug tank is further arranged, the drug tank is communicated with the spiral coil through a drug supply pipe, and the drug supply pipe is communicated with the drug tank. Medicine in the medicine tank passes through the medicine supply pipe, then is added into the spiral coil pipe and flows out of the release hole, and in addition, a medicine adding valve port is formed in the medicine tank and used for adding medicine. According to the medicine adding device, after medicine is added from the medicine adding valve port, the medicine adding valve port is closed, then the electric push rod is started, the electric push rod drives the medicine adding device to do linear reciprocating motion, and external air is sucked in and pressed into the medicine tank under the cooperation of the air suction one-way valve and the air exhaust one-way valve; and the medicine in the medicine tank is discharged from the release hole under the action of air pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine sustained-release devices for sewage treatment, in particular to a medicine sustained-release device for sewage treatment. Background Art

[0002] With the continuous improvement of living conditions and the continuous expansion of population, domestic sewage will also increase. Sewage treatment refers to the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Treatment is carried out by adding chemical reagents. Existing chemical reagents are mainly divided into flocculation, adhesion, resistance reduction and thickening. This type of chemical reagent has made a significant contribution to sewage treatment projects. In the early stage of the reaction of adding coagulants, it is necessary to increase the chance of contact between the reagents and sewage as much as possible, increase the flow rate, increase the chance of collision between particles in the water, and make flocs coagulate. However, in the existing drug additives, most of them only discharge the drug on one side to treat the sewage when discharging the drug, and cannot make the drug and sewage mix over a large area. In addition, most of the additives are relatively large, which will be a bit overkill when treating small sewage pools. In addition, it may also cause certain problems due to the terrain when placing. For this reason, we propose a drug additive for sewage treatment to solve the above problems. Utility Model Content

[0003] The technical problem to be solved by the present invention is: in order to overcome the above problems, a drug sustained-release device for sewage treatment is provided, which solves the above problems.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A drug sustained-release device for sewage treatment includes a spiral coil immersed in a sewage pool, the spiral coil is provided with a plurality of release holes, and a medicine tank. The medicine tank and the spiral coil are connected by a medicine supply pipe. The medicine in the medicine tank is added into the spiral coil through the medicine supply pipe and flows out from the release hole. In addition, a drug adding valve is provided on the medicine tank for adding drugs. A pressurizing device is also fixed on the upper end of the medicine tank for pressurizing the medicine tank and thereby adding the drugs in the medicine tank into the spiral coil.

[0006] Preferably, the pressurizing device includes an air cylinder fixed to the upper end of the medicine tank and an electric push rod arranged on the air cylinder. The front end of the telescopic rod of the electric push rod is fixed with a device for compressing air in the air cylinder, and the side of the air cylinder is fixed with an air intake one-way valve connected to its inner cavity.

[0007] Preferably, an exhaust one-way valve is fixedly provided at the lower end of the gas cylinder for connecting to the gas supply pipe extending into the medicine tank, and an air aeration plate is fixedly provided at the lower end of the gas supply pipe. A cavity layer is provided in the gas aeration plate and is connected to the gas supply pipe, and a plurality of micropores are provided at intervals on the upper end surface of the gas aeration plate for bubbling the air pressed into the gas cylinder, thereby increasing the oxygen content of the medicine, increasing the activity and accelerating the reaction.

[0008] Preferably, a protective mesh cover is fixedly mounted on the outside of the spiral coil to prevent the spiral coil from being damaged by hard objects in the sewage pool.

[0009] Preferably, the inner walls of the medicine supply pipe, the spiral coil, and the medicine tank, as well as the outer walls of the medicine supply pipe and the spiral coil are all provided with an anti-corrosion coating to increase the service life of the equipment.

[0010] The advantages and positive effects of the present invention are: after the medicine is added from the dosing valve port, the dosing valve port is closed, and then the electric push rod is started, and the electric push rod drives the device to perform a linear reciprocating motion, and with the cooperation of the air intake check valve and the exhaust check valve, the external air is sucked in and pressed into the medicine tank, and the medicine tank discharges the medicine from the release hole under the action of the air pressure. Compared with the existing technology, the present device does not have a pump body in direct contact with the medicine or sewage, thereby avoiding damage to the equipment by corrosive liquids, reducing equipment costs and the cost of loss parts, and the structural design of the spiral coil improves the uniformity of drug release and enhances its diffusivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a structural diagram of the utility model;

[0014] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of the middle gas cylinder 12, the gas supply pipe 20 extending into the medicine tank 10, and the gas aeration plate 19. DETAILED DESCRIPTION

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating the basic structure of the present invention in a schematic manner, and therefore only show components relevant to the present invention. The following is a further detailed description of embodiments of the present invention with reference to the accompanying drawings:

[0016] like Figure 1-3As shown, the utility model describes a drug sustained-release device for sewage treatment, comprising a spiral coil 16 immersed in a sewage pool, the spiral coil 16 being provided with a plurality of release holes 17, and a medicine tank 10 being provided, the medicine tank 10 and the spiral coil 16 being connected via a drug supply pipe 11, the medicine in the medicine tank 10 being added into the spiral coil 16 through the drug supply pipe 11 and flowing out from the release hole 17, and a drug adding valve port 15 being provided on the medicine tank 10 for adding drugs, and a pressurizing device being fixedly provided at the upper end of the medicine tank 10 for pressurizing the medicine tank 10 and thereby adding the drugs in the medicine tank 10 into the spiral coil 16.

[0017] Preferably, the pressurizing device includes an air cylinder 12 fixed to the upper end of the medicine tank 10 and an electric push rod 14 arranged on the air cylinder 12. The front end of the telescopic rod of the electric push rod 14 is fixed with 24 for compressing air in the air cylinder 12. The side of the air cylinder 12 is fixed with an air intake one-way valve 13 connected to its inner cavity.

[0018] Preferably, an exhaust one-way valve 21 is fixedly provided at the lower end of the gas cylinder 12 for connecting to the gas supply pipe 20 extending into the medicine tank 10, and an air aeration plate 19 is fixedly provided at the lower end of the gas supply pipe 20. A cavity layer is provided in the gas aeration plate 19 and is connected to the gas supply pipe 20, and a plurality of micropores are provided at intervals on the upper end surface of the gas aeration plate 19 for bubbling the air pressed into the gas cylinder 12, thereby increasing the oxygen content of the medicine, increasing the activity and accelerating the reaction.

[0019] Preferably, a protective mesh cover 18 is fixedly provided on the outside of the spiral coil 16 to prevent the spiral coil 16 from being damaged by hard objects in the sewage pool.

[0020] Preferably, the inner wall of the medicine supply pipe 11, the spiral coil 16, the medicine tank 10 and the outer wall of the medicine supply pipe 11 and the spiral coil 16 are all provided with an anti-corrosion coating to increase the service life of the equipment.

[0021] During specific implementation, after the medicine is added from the dosing valve port 15, the dosing valve port 15 is closed, and then the electric push rod 14 is started. The electric push rod 14 drives the 24 to perform a linear reciprocating motion, and with the cooperation of the air intake check valve 13 and the exhaust check valve 21, the external air is sucked in and pressed into the medicine tank 10, and the medicine tank 10 discharges the medicine from the release hole 17 under the action of the air pressure. Compared with the existing technology, this device does not have a pump body in direct contact with the medicine or sewage, which avoids damage to the equipment by corrosive liquids, reduces equipment costs and the cost of loss parts, and the structural design of the spiral coil 16 improves the uniformity of drug release and enhances its diffusivity.

[0022] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation methods. Any other implementation methods derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A drug sustained-release device for sewage treatment, characterized in that: The invention comprises a spiral coil (16) immersed in a sewage pool, wherein the spiral coil (16) is provided with a plurality of release holes (17), and a medicine tank (10) is provided. The medicine tank (10) and the spiral coil (16) are connected via a medicine supply pipe (11). The medicine in the medicine tank (10) is added into the spiral coil (16) through the medicine supply pipe (11) and flows out from the release holes (17). In addition, a medicine adding valve (15) is provided on the medicine tank (10) for adding medicine. A pressurizing device is fixedly provided at the upper end of the medicine tank (10) for pressurizing the medicine tank (10) and thereby adding the medicine in the medicine tank (10) into the spiral coil (16).

2. A drug sustained-release device for sewage treatment according to claim 1, characterized in that: The pressurizing device includes an air cylinder (12) fixed to the upper end of the medicine tank (10) and an electric push rod (14) arranged on the air cylinder (12), a telescopic rod of the electric push rod (14) is fixedly provided at the front end with (24) for compressing air in the air cylinder (12), and an air inhalation one-way valve (13) connected to its inner cavity is fixedly provided on the side of the air cylinder (12).

3. A drug sustained-release device for sewage treatment according to claim 2, characterized in that: An exhaust one-way valve (21) is fixedly provided at the lower end of the gas cylinder (12) for connecting to the gas supply pipe (20) extending into the medicine tank (10), and an air aeration plate (19) is fixedly provided at the lower end of the gas supply pipe (20). A cavity layer is provided in the gas aeration plate (19) and is connected to the gas supply pipe (20), and a plurality of micropores are provided at intervals on the upper end surface of the gas aeration plate (19) for bubbling the air pressed into the gas cylinder (12) to increase the oxygen content of the medicine, thereby increasing the activity and accelerating the reaction.

4. A drug sustained-release device for sewage treatment according to claim 1, 2 or 3, characterized in that: A protective mesh cover (18) is fixedly provided on the outside of the spiral coil (16) to prevent hard objects in the sewage pool from damaging the spiral coil (16).

5. The drug sustained-release device for sewage treatment according to claim 4, characterized in that: The inner walls of the medicine supply pipe (11), the spiral coil (16), and the medicine tank (10), as well as the outer walls of the medicine supply pipe (11) and the spiral coil (16) are all provided with an anti-corrosion coating to increase the service life of the equipment.

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