Quantitative dosing device for sewage treatment agent

Abstract

The utility model discloses a reagent quantitative feeding device for sewage treatment, reagent quantitative feeding device includes helix ware base shell, and installs the feeding hopper on helix ware base shell, installs the reagent cylinder on the feeding opening position of feeding hopper, the reagent cylinder's inside activity is provided with the feed piston, be installed on the reagent cylinder and feed one -way valve and feeding one -way valve, and the feeding one -way valve is located the bottom wall of reagent cylinder and leads to the feeding opening of feeding hopper. The helix ware base shell rotatory support has the blade core shaft, and fixedly installs the spiral blade on the blade core shaft, and spiral motor drives the blade core shaft. Be installed on the feed piston and have piston transmission lead screw, and piston transmission lead screw and piston transmission nut constitute piston transmission pair, and this piston transmission nut passes through nut driving pair and is connected with piston drive motor transmission. This reagent quantitative feeding device not only can realize the mixed feeding of multiple reagents, but also can realize the accurate mixed feeding of multiple reagents.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a reagent dosing device for physicochemical treatment of wastewater. Background Technology

[0002] Chemical wastewater treatment is a common physicochemical method primarily used to remove suspended solids, colloidal substances, and dissolved pollutants from wastewater. This method involves adding specific chemical agents to the wastewater, causing the pollutants to react chemically and form flocculent substances that are easily settled or filtered, thereby purifying the water.

[0003] With technological advancements, wastewater treatment devices capable of mixing and adding multiple chemicals have gradually emerged to achieve multi-functional wastewater treatment. However, existing chemical dosing devices often only allow for the addition of a single chemical, resulting in limited functionality and low efficiency. Even when multiple chemical components are added, thorough mixing is not possible. In particular, existing dosing devices struggle to precisely control the dosage, easily leading to under- or over-dosing. Furthermore, current dosing structures still rely on manual operation, resulting in low dosing efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a quantitative dosing device for wastewater treatment agents that can achieve precise dosing of multiple agents mixed together.

[0005] To solve the above-mentioned technical problems, the present invention provides a quantitative dosing device for wastewater treatment. The device includes a screw conveyor base and a feeding hopper installed on the screw conveyor base. A chemical cylinder is installed at the feeding port of the feeding hopper, and a feeding piston is movably installed inside the chemical cylinder. A replenishing check valve and a feeding check valve are installed on the chemical cylinder. The feeding check valve is located on the bottom wall of the chemical cylinder and leads to the feeding port of the feeding hopper.

[0006] Furthermore, a blade mandrel is rotatably supported inside the auger housing, and helical blades are fixedly mounted on the blade mandrel. The helical motor drives the blade mandrel.

[0007] Furthermore, a piston drive screw is installed on the feeding piston, and the piston drive screw and the piston drive nut form a piston drive pair. The piston drive nut is connected to the piston drive motor through the nut drive pair.

[0008] Furthermore, a piston seal is embedded on the feeding piston, and the piston seal is located at the sealing surface between the drug cylinder and the feeding piston.

[0009] After adopting the above technical solution, since a reagent cylinder is installed at the feeding port of the reagent dispensing device, and a feeding piston is movable inside the reagent cylinder, the reagent can be accurately dispensed downwards by pushing the feeding piston downwards. This not only achieves precise quantitative dispensing of the reagent but also facilitates remote intelligent dispensing. When multiple reagent cylinders are installed on the feeding hopper, multiple reagents can be dispensed simultaneously or sequentially. Furthermore, since a spiral blade is installed rotating inside the spiral casing, a spiral conveying and stirring structure is formed. This structure can transport the reagents from the reagent cylinders to the pretreatment cabinet, removing suspended solids, heavy metal ions, and other harmful substances from the oily wastewater, reducing the water concentration and hardness, and providing conditions for subsequent efficient biochemical treatment. When multiple functional reagents are dispensed, the spiral conveying structure also has a stirring and mixing effect on multiple reagents, allowing the reagents to act evenly on the oily wastewater in the cabinet and exert their water purification effect. Attached Figure Description

[0010] The present invention provides a more detailed description of the quantitative dosing device for wastewater treatment agents, in conjunction with the accompanying drawings and specific embodiments.

[0011] Figure 1 This is a schematic diagram of a specific embodiment of the wastewater treatment reagent quantitative dosing device of this utility model;

[0012] Figure 2 yes Figure 1 A schematic diagram of the installation structure of the Chinese medicine preparation cylinder and the feeding piston.

[0013] In the figure, 1—chemical cylinder, 2—feeding piston, 3—piston drive nut, 4—piston drive screw, 5—nut drive pair, 6—piston drive motor, 7—feeding check valve, 8—feeding check valve, 9—feeding hopper, 10—feeding port, 11—blade mandrel, 12—spiral blade, 13—spiral motor, 14—spiral base shell, 15—piston seal. Detailed Implementation

[0014] like Figure 1 , Figure 2 The wastewater treatment chemical dispensing device shown includes a screw conveyor base 14, a feeding hopper 9 fixedly mounted on the upper side of the screw conveyor base 14, and a feeding port 10 located on the lower side of the screw conveyor base 14, extending into the cavity of the wastewater treatment tank. A blade spindle 11 is rotatably supported on the screw conveyor base 14, and screw blades 12 are fixedly mounted on the blade spindle 11. A screw motor 13 is also fixedly mounted on the screw conveyor base 14, and the output shaft of the screw motor 13 is connected to the blade spindle 11 via a coupling. The screw motor 13 is a servo motor.

[0015] Three reagent cylinders 1 are fixedly installed at the upper end of the feeding hopper 9. These three cylinders 1 are used to hold different wastewater treatment agents, such as flocculants, purifying agents, and bactericides. A feeding check valve 8 is installed at the bottom of each reagent cylinder 1, and a replenishing check valve 7 is also installed on each cylinder 1. The feeding check valve 8 connects to the feeding hopper 9, while the replenishing check valve 7 is used to input the corresponding agent into the reagent cylinder 1. Both the feeding check valve 8 and the replenishing check valve 7 are ordinary check valves with valve cores and springs. A feeding piston 2 is movably mounted inside the cylinder cavity of the reagent cylinder 1. A piston seal 15, which is an O-ring, is embedded on the outer circumference of the feeding piston 2. A piston drive screw 4 is hinged to the feeding piston 2, and a piston drive nut 3 is rotatably mounted at the cylinder opening of the reagent cylinder 1. The piston drive nut 3 and the piston drive screw 4 form a screw-nut pair. A drive worm gear is fixedly fitted around the outer periphery of the piston drive nut 3, and a piston drive motor 6 is fixedly installed at the inlet of the drug cylinder 1. The output shaft of the piston drive motor 6 is connected to a worm gear through a coupling, and the meshing worm gear and worm wheel form a worm gear transmission pair. During operation, the piston drive motor 6 drives the piston drive nut 3 to rotate through the worm gear pair. The rotating piston drive nut 3 drives the piston drive screw 4 to move up and down, thereby driving the feeding piston 2 inside the drug cylinder 1 to move up and down. When the feeding piston 2 moves downward, the replenishment check valve 7 closes, and the feeding check valve 8 opens, allowing the drug to be fed into the screw base shell 14 through the feeding hopper 9. Conversely, when the feeding piston 2 moves upward, the feeding check valve 8 closes, and the replenishment check valve 7 opens, allowing the drug to be replenished into the drug cylinder 1 through the replenishment check valve 7.

[0016] The agent is fed into the spiral base shell 14 through the feeding hopper 9. After being conveyed and stirred by the spiral blades 12, the agent is fed into the cabinet cavity of the treatment cabinet through the feeding port 10. The agent is fully stirred by the agitator and evenly mixed with the oily wastewater in the treatment cabinet, thereby exerting the effect of the agent.

[0017] The above are some preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make improvements and substitutions to the technical solutions described in the foregoing embodiments. Such substitutions and improvements that violate the spirit and principles of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A quantitative dosing device for wastewater treatment agents, characterized in that: The drug dispensing device includes a screw base shell (14) and a feeding hopper (9) installed on the screw base shell (14). A drug cylinder (1) is installed at the feeding port of the feeding hopper (9). A feeding piston (2) is movably installed inside the drug cylinder (1). A replenishing check valve (7) and a feeding check valve (8) are installed on the drug cylinder (1). The feeding check valve (8) is located on the bottom wall of the drug cylinder (1) and leads to the feeding port of the feeding hopper (9).

2. The apparatus according to claim 1, wherein: The blade spindle (11) is rotatably supported inside the base shell (14) of the auger, and the auger blade (12) is fixedly installed on the blade spindle (11). The auger motor (13) drives the blade spindle (11).

3. The wastewater treatment reagent quantitative dosing device according to claim 1, characterized in that: The feeding piston (2) is equipped with a piston drive screw (4), and the piston drive screw (4) and the piston drive nut (3) form a piston drive pair. The piston drive nut (3) is connected to the piston drive motor (6) through the nut drive pair (5).

4. The apparatus according to claim 1, wherein: The feed piston (2) is fitted with a piston seal (15), which is located at the sealing surface between the drug cylinder (1) and the feed piston (2).

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