Continuous dosing equipment capable of automatically quantifying

By monitoring the weight of the medicine bin with an electronic scale and a PLC controller, and controlling the diffusion of the medicine powder with a fan and a shield, the problem of uneven dosing of powdered medicine was solved, and efficient uniform spraying and flocculation of medicine powder were achieved.

CN224077134UActive Publication Date: 2026-04-03JIANGSU HENGZE ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing spiral dosing equipment lacks quantitative and rate control functions for powdered drug dosing, causing the powder to accumulate near the discharge port and reducing its effectiveness.

Method used

The weight of the medicine container is monitored by a combination of an electronic scale and a PLC controller with a weighing sensor. The medicine powder is blown out by a fan and the diffusion range is controlled by a shield, so as to achieve uniform spraying of the medicine powder.

Benefits of technology

It achieves uniform distribution of the powder, improves flocculation efficiency, has continuity and stability, and reduces labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses continuous dosing equipment capable of automatically quantifying, which belongs to the technical field of dosing equipment and comprises an electronic scale, the top of the electronic scale is distributed in a rectangular shape and is fixedly connected with four stand columns, a medicine bin is fixedly connected above the stand columns, a spiral blanking rod is rotatably connected in the medicine bin, and the spiral blanking rod is fixedly connected with the top of the electronic scale. The top of the medicine bin is fixedly connected with a rotating motor used for driving the spiral discharging rod to rotate, a feeding port is formed in the top of the medicine bin, the bottom of the medicine bin fixedly communicates with a discharging connector, the lower end of the discharging connector is transversely and fixedly connected with a blowing pipe, and the top of the electronic scale is fixedly connected with a fan. According to the chemical feeding device, chemical feeding has continuity and stability, the chemical feeding amount and the chemical feeding speed are controllable, high automation is achieved, the chemical feeding efficiency can be improved, and the labor cost of chemical feeding is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of dosing equipment technology, specifically to a continuous dosing device that can automatically dispense quantitative amounts of chemicals. Background Technology

[0002] A chemical dosing system is a device used to automatically add chemical reagents during industrial production. For liquid chemical dosing, it typically consists of a liquid storage tank, a metering pump, and a control system, enabling precise dosing and improving production efficiency and product quality. For solid powdered chemicals, a screw conveyor is often used for dosing.

[0003] For liquid dosing devices, metering pumps can achieve precise quantitative and rate-controlled dosing. However, existing technologies still have some problems in the dosing of powdered agents. For example, in the field of water treatment, powdered flocculants are often added to wastewater to carry out flocculation reactions and then purify the wastewater. However, most existing spiral dosing equipment does not have quantitative and rate-controlled functions. During dosing, the powder cannot be sprayed evenly, causing the discharged powder to accumulate near the discharge port, reducing the effectiveness of the powder. Therefore, to address the above problems, a highly automated quantitative dosing device is needed. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a continuous dosing device with automatic quantitative dispensing capability.

[0005] The technical solution of this utility model is: an automatic quantitative continuous dosing device, including an electronic scale, four columns fixedly connected to the top of the electronic scale in a rectangular arrangement, a medicine bin fixedly connected above the columns, a spiral feed rod rotatably connected inside the medicine bin, a rotary motor for driving the spiral feed rod to rotate fixedly connected to the top of the medicine bin, a feeding port provided at the top of the medicine bin, a discharge interface fixedly connected to the bottom of the medicine bin, a blowing pipe fixedly connected laterally at the lower end of the discharge interface, a blower fixedly connected to the top of the electronic scale, a hose one fixedly connected to the outlet of the blower, the hose one fixedly connected to the right end of the blowing pipe, the left end of the blowing pipe fixedly connected to the hose two, and a PLC controller for electrical connection with the rotary motor and the blower fixedly connected to the outer wall of the medicine bin.

[0006] Furthermore, the electronic scale includes a fixed base plate, with a limiting post at each of the four corners of the fixed base plate. A spring is sleeved on the outside of the limiting post, and a movable plate is snapped onto the top of the limiting post. The bottom of the movable plate abuts against the spring. A weighing sensor is fixedly connected between the fixed base plate and the movable plate, and the weighing sensor is electrically connected to the PLC controller.

[0007] Explanation: The weight of the medicine container is detected by an electronic scale. The weighing sensor is a commercially available product. Its principle is based on the resistance strain effect. It converts the weight change of the medicine container into an electrical signal and then transmits it to the PLC controller, which calculates the amount of medicine to be dispensed.

[0008] Furthermore, the bottom of the electronic scale is fixedly connected to a connecting base, and each of the four corners of the connecting base is provided with a threaded mounting hole.

[0009] Note: The connecting base facilitates the installation of this device on other equipment.

[0010] Furthermore, a connection interface is fixedly connected to the end of the second hose, a shield is threaded onto the connection interface, and a feeding cover is hinged to the left side of the feeding port.

[0011] Note: The shield can control the diffusion range of the blown powder, so that the powder is evenly sprayed within a certain range.

[0012] Furthermore, a display and a buzzer are fixedly connected to the outer wall of the medicine compartment, and both the display and the buzzer are electrically connected to the PLC controller.

[0013] Note: The display shows the amount and speed of the medicine being dispensed. When the medicine powder in the medicine compartment is completely dispensed, a buzzer will sound to remind staff to add more medicine powder to the compartment.

[0014] The beneficial effects of this utility model are:

[0015] This invention monitors the amount of powder in the medicine chamber using an electronic scale and controls the dosage and speed of the powder dispensing using a PLC controller. The powder is dispensed by blowing it out with a fan, ensuring even distribution within a certain area. In wastewater treatment, this invention allows the flocculant to be evenly dispersed on the surface of the wastewater, improving flocculation efficiency. The dosing process is continuous and stable, with controllable dosage and speed, achieving a high degree of automation, thus improving dosing efficiency and reducing labor costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 This is a top view of the medicine storage compartment 3 of this utility model.

[0019] Figure 4 This is a cross-sectional view of the shield and the connecting interface of this utility model.

[0020] Among them, 1-electronic scale, 2-column, 3-medicine chamber, 4-spiral feed rod, 5-rotating motor, 31-feeding port, 32-feeding interface, 33-blowing pipe, 6-fan, 61-hose one, 34-hose two, 7-PLC controller, 11-fixed base plate, 12-limiting column, 13-spring, 14-moving plate, 15-weighing sensor, 16-connecting base, 17-threaded mounting hole, 35-connecting interface, 36-shielding cover, 37-feeding cover plate, 8-display, 9-buzzer. Detailed Implementation

[0021] Example 1:

[0022] like Figure 1 As shown, an automatic quantitative continuous dosing device includes an electronic scale 1. Four columns 2 are fixedly connected to the top of the electronic scale 1 in a rectangular arrangement. A medicine bin 3 is fixedly connected above the columns 2. A screw feed rod 4 is rotatably connected inside the medicine bin 3. A rotary motor 5 for driving the screw feed rod 4 is fixedly connected to the top of the medicine bin 3. A feeding port 31 is provided at the top of the medicine bin 3. A discharging interface 32 is fixedly connected to the bottom of the medicine bin 3. A blowing pipe 33 is horizontally fixedly connected to the lower end of the discharging interface 32. A blower 6 is fixedly connected to the top of the electronic scale 1. A hose 61 is fixedly connected to the outlet of the blower 6. The hose 61 is fixedly connected to the right end of the blowing pipe 33. A hose 34 is fixedly connected to the left end of the blowing pipe 33. A PLC controller 7 for electrical connection with the rotary motor 5 and the blower 6 is fixedly connected to the outer wall of the medicine bin 3.

[0023] like Figure 2 As shown, the electronic scale 1 includes a fixed base plate 11. A limit post 12 is provided at each of the four corners of the fixed base plate 11. A spring 13 is sleeved on the outside of the limit post 12. A movable plate 14 is snapped on the top of the limit post 12. The bottom of the movable plate 14 abuts against the spring 13. A weighing sensor 15 is fixedly connected between the fixed base plate 11 and the movable plate 14. The weighing sensor 15 is electrically connected to the PLC controller 7.

[0024] The weight of the medicine container is detected by the electronic scale 1. The weighing sensor 15 is a commercially available product. Its principle is based on the resistance strain effect. It converts the weight change of the medicine container 3 into an electrical signal and then transmits it to the PLC controller 7, which calculates the amount of medicine to be dispensed.

[0025] Example 2:

[0026] The difference between this embodiment and embodiment 1 is that the bottom of the electronic scale 1 is fixedly connected to a connecting base 16, and each of the four corners of the connecting base 16 is provided with a threaded mounting hole 17.

[0027] Compared to Embodiment 1, in this embodiment, the connecting base 16 facilitates the installation of this device on other equipment.

[0028] Example 3:

[0029] The difference between this embodiment and embodiment 2 is that, as Figure 3 , Figure 4 As shown, a connection interface 35 is fixedly connected to the end of the second hose 34, and a shield 36 is threaded onto the connection interface 35. A feeding cover 37 is hinged to the left side of the feeding port 31.

[0030] Compared to Example 2, in this embodiment, the shield 36 can control the diffusion range of the blown powder, so that the powder is evenly sprayed within a certain range.

[0031] Example 4:

[0032] The difference between this embodiment and embodiment 3 is that a display 8 and a buzzer 9 are also fixedly connected to the outer wall of the medicine compartment 3, and both the display 8 and the buzzer 9 are electrically connected to the PLC controller 7.

[0033] Compared with Example 3, in this embodiment, the display 8 is used to display the amount and speed of medicine dispensing. When the medicine powder in the medicine compartment 3 is completely added, the buzzer 9 sounds an alarm to remind the staff to add medicine powder to the medicine compartment 3.

[0034] The working method of Embodiment 4 above includes the following steps:

[0035] S1. Install this device on the device that needs to be added with medicine through the connecting base 16. Add medicine powder to the medicine chamber 3 through the feeding port 31 (the medicine powder mentioned in this utility model is the prior art, and those skilled in the art can select it according to their needs, without any special limitation). The weight of the medicine chamber 3 is detected by the electronic scale 1, and the detection result is fed back to the PLC controller 7 through an electrical signal (it should be noted that the connection relationship between the PLC controller 7 and each electrical component and the data transmission are all existing known technologies and do not belong to the innovation of this utility model, and will not be described in detail here).

[0036] S2. The rotating motor 5 drives the spiral feeder 4 to transport the powder to the feed inlet 32. The powder is transported from the feed inlet 32 ​​to the blowing pipe 33. The air generated by the blower 6 blows the powder into the blowing pipe 33 through the first hose 61, and blows the powder in the blowing pipe 33 into the second hose 34. Finally, it is discharged through the shield 36.

[0037] S3. The weight change of the medicine chamber 3 is fed back to the staff through the display 8. After the medicine powder in the medicine chamber 3 is emptied, the buzzer 9 will sound an alarm to remind the staff to add medicine to the medicine chamber in time.

[0038] In the above embodiments, the rotating motor 5, fan 6, PLC controller 7, weighing sensor 15, display 8, and buzzer 9 are all commercially available products. As long as they can achieve the functions of this utility model, they are acceptable. Those skilled in the art can choose to use them based on common sense, and no special limitations are made here.

Claims

1. An automatic dosing continuous dosing device, characterized by, Including electronic scale (1), the top of electronic scale (1) is rectangularly distributed and fixedly connected with four columns (2), the upper of column (2) is fixedly connected with medicine bin (3), the inside of medicine bin (3) is rotatably connected with spiral blanking bar (4), the top of medicine bin (3) is fixedly connected with rotating motor (5) for driving spiral blanking bar (4) to rotate, the top of medicine bin (3) is equipped with feeding opening (31), the bottom of medicine bin (3) is fixedly connected with blanking interface (32), the lower end of blanking interface (32) is fixedly connected with blowing pipe (33) laterally, the top of electronic scale (1) is fixedly connected with fan (6), the outlet of fan (6) is fixedly connected with hose one (61), hose one (61) is fixedly communicated with the right end of blowing pipe (33), the left end of blowing pipe (33) is fixedly communicated with hose two (34), the outer wall of medicine bin (3) is fixedly connected with PLC controller (7) for being electrically connected with rotating motor (5) and fan (6).

2. The automatic dosing continuous feeding device according to claim 1, wherein The electronic scale (1) includes a fixed base plate (11), the four corners of the fixed base plate (11) are provided with a limiting column (12), the limiting column (12) is sleeved with a spring (13) outside, the limiting column (12) is clamped with a movable plate (14) above, the movable plate (14) is abutted with the spring (13) below, the fixed base plate (11) and the movable plate (14) are fixedly connected with a weighing sensor (15), the weighing sensor (15) is electrically connected with the PLC controller (7).

3. The automatic dosing continuous feeding device according to claim 1, wherein The bottom of the electronic scale (1) is fixedly connected with a connecting base (16), the four corners of the connecting base (16) are respectively provided with a threaded mounting hole (17).

4. The automatic dosing continuous feeding device according to claim 1, wherein The distal end of the hose two (34) is fixedly connected with a connecting interface (35), the connecting interface (35) is threadedly connected with a shielding cover (36), the left side of the feeding opening (31) is hinged with a feeding cover plate (37).

5. The automatic dosing continuous feeding device according to claim 1, wherein The outer wall of the medicine bin (3) is also fixedly connected with a display (8) and a buzzer (9), the display (8) and the buzzer (9) are electrically connected with the PLC controller (7).