Accurate powder adding device

Abstract

The utility model provides an accurate powder adding device, relates to the technical field of auxiliary powder adding devices, and aims to solve the problems that an existing powder adding device is simple in structure, the amount of added powder cannot be accurately controlled, and the quality of a finished product after even mixing in the later period is affected, the accurate powder adding device comprises a hollow box body, and supporting legs are evenly distributed at the bottom of the box body. An opening is formed in the top of the box body, a feeding port is formed in the opening, a sealing plate is movably connected to the bottom of the opening, a limiting plate is installed on the box body, the right end of the sealing plate is rotatably connected to the limiting plate through a rotating shaft, and the limiting plate abuts against the bottom of the opening. A discharging port is formed in the bottom of the box body, and an electromagnetic valve is arranged at the position of the discharging port.

Description

Technical Field

[0001] The utility model relates to the technical field of powder dosing auxiliary devices, in particular to a powder precise dosing device. Background Art

[0002] With the advancement of my country's water environment governance, sewage discharge standards are constantly improving, and the types of chemicals that need to be added during the operation of sewage treatment plants are also increasing. Powders such as activated carbon and diatomaceous earth have strong adsorption and sedimentation properties and need to be added at different process sections. However, due to the uncertain frequency of addition and variable positions, adding fixed dosing devices and pipelines will result in higher investment and unnecessary waste of manpower and material resources. When adding chemicals manually, not only will uneven dosing cause waste of chemicals, but there will also be problems such as powder scattering and pollution of the surrounding environment.

[0003] The existing patent number is 202220338864.4, and its name is a simple dosing device for water treatment powder. It discloses a feed bin, a support, a connecting port, a discharge straight pipe, a discharge hose, and a discharge port. The support is firmly placed at the powder dosing point, the feed bin is placed on the support, the bottom of the feed bin is a grid bracket, which is convenient for the agent to enter the discharge straight pipe. A connecting port is arranged below the grid bracket, the connecting port is connected to the discharge straight pipe, the discharge straight pipe is connected to the discharge hose, and the discharge hose is connected to the discharge port. A bin cover with a handle is provided above the feed bin, and hooks and operating seams are provided on the side walls. The above scheme has the problem of simple structure, inability to accurately control the amount of powder added, and affecting the quality of the finished product after later mixing. Therefore, it is particularly important to design a powder precision dosing device to solve the above technical problems. Utility Model Content

[0004] The utility model aims to solve the problem that the existing powder adding device has a simple structure and cannot accurately control the amount of added powder, which affects the quality of the finished product after subsequent mixing, and proposes a powder accurate adding device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a powder precision dosing device, comprising a box body, which is hollow, and the bottom of the box body is evenly distributed with supporting feet, the top of the box body is provided with an opening, a feed port is installed at the position of the opening, a sealing plate is movably connected to the bottom of the opening, a limiting plate is installed on the box body, the right end of the sealing plate is rotatably connected to the limiting plate through a rotating shaft, the limiting plate is abutted against the bottom of the opening, a discharge port is provided at the bottom of the box body, and a solenoid valve is provided at the discharge port.

[0006] Preferably, a water supply port is provided on the side wall of the box body, and the water supply port is connected to an external water supply pipeline.

[0007] Preferably, an electric cylinder is provided on the inner wall of the box body and on the left side of the opening, a sliding rod is movably connected in the electric cylinder, and the end of the sliding rod is rotatably connected to the left end of the sealing plate through a rotating rod.

[0008] Preferably, a weighing sensor is installed at the bottom of the sealing plate, a weight display is provided on the box body, the weighing sensor and the weight display are connected by electrical signals, and the weight display and the electric cylinder are connected by electrical signals.

[0009] Preferably, a stirring paddle is installed below the opening, and a motor is fixedly connected to the outer wall of the box body, and the motor is rotatably connected to the stirring paddle via a rotor.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] 1. In the utility model, during use, a feed port is arranged at the top position of the box body and the opening cooperates with each other to complete the conveying of powder from the feed port to the box body, and a sealing plate is rotatably arranged at the bottom position of the opening, and a weighing sensor is installed at the bottom of the sealing plate. At the same time, the weighing sensor and the weight display cooperate with each other to complete the accurate weighing of the powder, and then convey it to the position of the box body after weighing. Compared with the conventional powder conveying device with a simple structure, the technical solution adopted by the utility model is a method of first measuring the powder and then conveying it for a second time, so that the powder can be efficiently and accurately conveyed to the box body, thereby improving the mixing quality of the finished product in the later stage. The overall structure is compact, the layout is reasonable, and it is easy for the staff to install and maintain, which solves the problem that the existing powder adding device has a simple structure and cannot accurately control the amount of added powder, which affects the quality of the finished product after mixing in the later stage.

[0012] 2. In the utility model, during use, the motor drives the rotor to drive the stirring paddle to rotate in the box to complete the mixing of powder and water. The weight display and the weighing sensor are connected by electrical signals, and the weight sensor and the electric cylinder are also connected by electrical signals, so that the work of the three can be coordinated quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall diagram of the powder precision dosing device of the utility model;

[0014] Legend: 1. Box body; 101. Support foot; 102. Opening; 2. Feed inlet; 3. Closing plate; 301. Limiting plate; 302. Rotating shaft; 303. Electric cylinder; 304. Sliding rod; 305. Rotating rod; 306. Weighing sensor; 307. Weight display; 4. Discharge port; 401. Solenoid valve; 5. Water supply port; 6. Agitator paddle; 601. Motor; 602. Rotor. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0017] The utility model provides a powder precision dosing device, comprising a box body 1, the box body 1 is hollow, the bottom of the box body 1 is evenly distributed with supporting feet 101, the top of the box body 1 is provided with an opening 102, a feed port 2 is installed at the position of the opening 102, a sealing plate 3 is movably connected to the bottom of the opening 102, a limiting plate 301 is installed on the box body 1, the right end of the sealing plate 3 is rotatably connected to the limiting plate 301 through a rotating shaft 302, the limiting plate 301 is abutted against the bottom of the opening 102, and the box A discharge port 4 is provided at the bottom of the box body 1, and a solenoid valve 401 is provided at the position of the discharge port 4. A water supply port 5 is provided on the side wall of the box body 1, and the water supply port 5 is connected to an external water supply pipeline. An electric cylinder 303 is provided on the inner wall of the box body 1 and on the left side of the opening 102. A slide rod 304 is movably connected in the electric cylinder 303, and the end of the slide rod 304 is rotatably connected to the left end of the sealing plate 3 through a rotating rod 305, so that when the slide rod 304 drives the sealing plate 3 to work, the overall movement is smooth and not stuck.

[0018] When the powder precision dosing device is actually used, the powder is first transported to the opening 102 through the feed port 2 by the external powder pipeline. At this time, the electric cylinder 303 drives the sealing plate 3 to close the open position of the opening 102 through the sliding rod 304, so that the powder is retained on the sealing plate 3. Since a weighing sensor 306 is installed at the bottom of the sealing plate 3, the weighing sensor 306 transmits real-time weighing data to the weight display 307, and the staff observes the weight display 307 in real time. Once the specified value is reached, the powder is stopped from being transported to the feed port 2. Then the weight display 307 transmits a working signal to the electric cylinder 303 to drive the sliding rod 304 to move downward, so that the sealing plate 3 connected to the end of the sliding rod 304 moves around the rotating shaft 302 in the direction away from the opening 102 until the bottom of the opening 102 is opened, so that the powder on the sealing plate 3 is transported downward, and at this time the water supply port 5 starts to transport the material, and then the outer wall of the box body 1 The motor 601 on the upper part drives the stirring paddle 6 to rotate through the rotor 602 to complete the mixing of the powder, and finally the powder is discharged from the discharge port 4. The start and stop of the discharge port 4 is controlled by the solenoid valve 401. The feed port 2 and the opening 102 are arranged at the top position of the box body 1 to cooperate with each other to complete the conveying of powder from the feed port 2 to the box body 1. At the same time, a sealing plate 3 is rotatably arranged at the bottom position of the opening 102, and a weighing sensor 306 is installed at the bottom of the sealing plate 3. At the same time, the weighing sensor 306 and the weight display 307 cooperate with each other to complete the accurate weighing of the powder, and then convey it to the position of the box body 1 after weighing. Compared with the conventional powder conveying device with a simple structure, the technical solution adopted by the utility model measures the powder first and then conveys it for a second time, so that the powder can be efficiently and accurately conveyed to the box body 1, thereby improving the mixing quality of the finished product in the later stage. The overall structure is compact, the layout is reasonable, and it is easy for the staff to install and maintain.

[0019] Example 1

[0020] like Figure 1 As shown, a weighing sensor 306 is installed at the bottom of the sealing plate 3, a weight display 307 is provided on the box body 1, the weighing sensor 306 and the weight display 307 are electrically connected, and the weight display 307 and the electric cylinder 303 are electrically connected, a stirring paddle 6 is installed at the lower position of the opening 102, a motor 601 is fixedly connected to the outer wall of the box body 1, and the motor 601 is rotatably connected to the stirring paddle 6 through a rotor 602,

[0021] The effect achieved by the entire embodiment 1 is that, during use, the motor 601 drives the rotor 602 to drive the stirring paddle 6 to rotate in the box 1 to complete the mixing of the powder and water. The weight display 307 and the weighing sensor 306 are connected by electrical signals, and the weight sensor and the electric cylinder 303 are also connected by electrical signals, so that the work of the three can be coordinated quickly.

[0022] Working principle: First, the powder is transported to the opening position through the external powder pipeline through the feed port. At this time, the electric cylinder drives the sealing plate through the slide rod to close the open position of the opening, so that the powder is retained on the sealing plate. Since a weighing sensor is installed at the bottom of the sealing plate, the weighing sensor transmits the real-time weighing data to the weight display. The staff observes the weight display in real time. Once the specified value is reached, the powder is stopped from being transported to the feed port. Then the weight display transmits a working signal to the electric cylinder to drive the slide rod to move downward, so that the sealing plate connected to the end of the slide rod moves around the rotating shaft away from the opening until the bottom of the opening is opened, so that the powder on the sealing plate is transported downward. At this time, the water supply port starts to transport materials, and then the motor on the outer wall of the box body drives the stirring paddle to rotate through the rotor to complete the mixing of the powder, and finally it is discharged from the discharge port. The start and stop of the discharge port is controlled by the solenoid valve.

Claims

1. A powder precision dosing device, comprising a box (1), wherein the box (1) is hollow, and support legs (101) are evenly distributed on the bottom of the box (1), characterized in that: The top of the box body (1) is provided with an opening (102), a feed port (2) is installed at the position of the opening (102), a sealing plate (3) is movably connected to the bottom of the opening (102), a limiting plate (301) is installed on the box body (1), the right end of the sealing plate (3) is rotatably connected to the limiting plate (301) via a rotating shaft (302), the limiting plate (301) is in contact with the bottom of the opening (102), a discharge port (4) is provided at the bottom of the box body (1), and a solenoid valve (401) is provided at the position of the discharge port (4).

2. A powder precision dosing device according to claim 1, characterized in that: A water supply port (5) is provided on the side wall of the box body (1), and the water supply port (5) is connected to an external water supply pipeline.

3. A powder precision dosing device according to claim 1, characterized in that: An electric cylinder (303) is provided on the inner wall of the box body (1) and on the left side of the opening (102). A sliding rod (304) is movably connected to the electric cylinder (303). The end of the sliding rod (304) is rotatably connected to the left end of the sealing plate (3) via a rotating rod (305).

4. A powder precision dosing device according to claim 3, characterized in that: A weighing sensor (306) is installed at the bottom of the sealing plate (3), a weight display (307) is provided on the box body (1), an electrical signal connection is established between the weighing sensor (306) and the weight display (307), and an electrical signal connection is established between the weight display (307) and the electric cylinder (303).

5. A powder precision dosing device according to claim 1, characterized in that: A stirring paddle (6) is installed below the opening (102), and a motor (601) is fixedly connected to the outer wall of the box body (1). The motor (601) is rotatably connected to the stirring paddle (6) via a rotor (602).

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