A quantitative dosing method using sensor detection

Abstract

A quantitative dosing method using sensor detection. At present, when the powdered flocculating agent is dosed, the dosing amount is operated according to the experience of employees, and the weight of the flocculating agent cannot be accurately dosed. The present application comprises the following steps: when it is necessary to add the powder to the treatment tank to promote sewage treatment, the internal movable installation of the powder hopper is provided with a discharging auger assembly, at this time, under the action of the discharging auger assembly, the powder enters the surface of the carrier plate through the discharging cylinder; the weight is weighed by the gravity sensor, when the gravity value on the display screen of the control panel reaches the expected value, the discharging auger assembly stops working; the electric push rod switch is started, the electric push rod makes the supporting seat retract, the discharge plate is inclined, and the powder on the discharge plate enters the inside of the sewage treatment tank through the dosing port, and the quantitative dosing work of the sewage treatment tank is completed. The present application is used for quantitative dosing.

Description

Technical Field

[0001] This invention relates to the field of power plant wastewater treatment, specifically a quantitative dosing method using sensor detection. Background Technology

[0002] The main pollutants in the raw water of thermal power plants are organic pollutants such as COD, BOD5, SS and ammonia nitrogen; traditional raw water treatment methods for power plants at home and abroad include mechanical accelerated clarification tanks and flocculation sedimentation tanks. Regarding patents related to power plant wastewater treatment, a prior art disclosure (application number: CN202121300270.6) discloses a wastewater treatment device for thermal power plants. The document states that "the flocculant is added into the mixing chamber through the dosing port 3, and the wastewater and flocculant are fully mixed under stirring." However, when adding powdered flocculant, the dosage is based on the employee's experience, making it impossible to accurately add the flocculant. Adding too much leads to waste of flocculant, while adding too little results in unsatisfactory wastewater treatment. Summary of the Invention

[0003] The purpose of this invention is to provide a quantitative dosing method using sensor detection to address the deficiencies mentioned in the background section.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A quantitative dosing method using sensor detection, the method comprising the following steps: (1) When it is necessary to add powder to the treatment tank to promote sewage treatment, the powder hopper is equipped with a feeding auger assembly. At this time, under the operation of the feeding auger assembly, the powder enters the surface of the carrier plate through the feeding cylinder. (2) Weighing is performed by gravity sensor. When the gravity value on the control panel screen reaches the expected value, the feeding auger assembly stops working. (3) Start the electric push rod switch. The electric push rod causes the support seat to retract and the unloading plate to tilt. The powder on it enters the interior of the sewage treatment tank through the dosing port, completing the quantitative dosing of the sewage treatment tank. According to the process requirements, the flocculant powder is accurately added, which improves the sewage treatment effect and avoids waste of powder.

[0005] The quantitative dosing method using sensor detection is described above, wherein fixed seats are welded to both sides of the bottom of the powder hopper, a support frame is installed at the bottom of the fixed seats, the bottom of the feeding cylinder is connected to the rectangular feeding frame on the quantity control dosing component, and the bottom of the rectangular feeding frame is set opposite to the dosing port; The unloading plate of the controlled feeding component is equipped with a connecting column at its end. The unloading plate is movably installed inside the rectangular feeding frame through the connecting column. The surface of the unloading plate is connected to the carrier plate. A gravity sensor is installed at the bottom of the carrier plate.

[0006] The quantitative dosing method using sensor detection involves a powder hopper mounted on a wastewater treatment tank via a support frame, wherein the opening area of ​​the dosing port on the wastewater treatment tank is larger than the base area of ​​the rectangular feeding frame.

[0007] The quantitative dosing method using sensor detection includes a control dosing component comprising a rectangular feeding frame, a discharge plate, a gravity sensor, and a carrier plate, wherein the discharge plate is a rotating structure centered on a connecting column.

[0008] The aforementioned quantitative dosing method using sensor detection features an arc-shaped unloading plate at both ends. The upper part of the unloading plate away from the connecting column is limited by a limiting block, and the lower part of the unloading plate away from the connecting column is supported by a support base.

[0009] The quantitative dosing method using sensor detection is described above, wherein the limiting block is welded to the inner wall of the rectangular feeding frame, and the limiting block is made of metal with a right-angled triangular cross-section.

[0010] The quantitative dosing method using sensor detection includes an electric push rod installed on a rectangular feeding frame. The electric push rod is electrically connected to a control panel installed on the outer wall of the rectangular feeding frame. The control panel is electrically connected to a gravity sensor, which is located at the center of the bottom of the carrier plate. Beneficial effects

[0011] 1. The electric push rod of this invention causes the support seat to retract, the unloading plate to tilt, and the powder on it enters the interior of the sewage treatment tank through the dosing port, completing the dosing work of the sewage treatment tank. It accurately adds flocculant powder, improves the sewage treatment effect, and avoids waste of powder. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the controlled dosing component of the present invention; Figure 3 This is a schematic diagram of the retraction of the structural support base of the present invention; Figure 4 The structure of this invention Figure 2 Top view; The following are labeled in the diagram: 1. Powder hopper; 2. Support frame; 3. Feeding cylinder; 4. Feeding auger assembly; 5. Fixed base; 6. Dosing port; 7. Dosing control assembly; 71. Rectangular feeding frame; 72. Unloading plate; 73. Gravity sensor; 74. Carrier plate; 75. Connecting column; 76. Limiting block; 77. Support base; 78. Electric push rod. Detailed Implementation

[0013] 3. Please refer to Figure 1-4 A quantitative dosing method using sensor detection, comprising the following steps: (1) When it is necessary to add powder to the treatment tank to promote sewage treatment, the powder hopper is equipped with a feeding auger assembly. At this time, under the operation of the feeding auger assembly, the powder enters the surface of the carrier plate through the feeding cylinder. (2) Weighing is performed by gravity sensor. When the gravity value on the control panel screen reaches the expected value, the feeding auger assembly stops working. (3) Start the electric push rod switch. The electric push rod causes the support seat to retract and the unloading plate to tilt. The powder on it enters the interior of the sewage treatment tank through the dosing port, completing the quantitative dosing of the sewage treatment tank. According to the process requirements, the flocculant powder is accurately added, which improves the sewage treatment effect and avoids waste of powder.

[0014] This invention provides a quantitative dosing method using sensor detection, including a powder hopper 1, a feeding auger assembly 4 movably installed inside the powder hopper 1, a feeding cylinder 3 installed at the bottom of the powder hopper 1, and a dosing port 6 provided at the bottom of the feeding cylinder 3, which is installed above a sewage treatment tank. Fixing seats 5 are welded to both sides of the bottom of the powder hopper 1, and a support frame 2 is installed at the bottom of the fixing seats 5. The bottom of the feeding cylinder 3 is connected to a rectangular feeding frame 71 on the quantitative dosing assembly 7, and the bottom of the rectangular feeding frame 71 is positioned opposite to the dosing port 6. The unloading plate 72 on the quantity control and feeding component 7 is equipped with a connecting column 75 at its end, and the unloading plate 72 is movably installed inside the rectangular unloading frame 71 through the connecting column 75. At the same time, the surface of the unloading plate 72 is connected to the carrier plate 74, and a gravity sensor 73 is installed at the bottom of the carrier plate 74.

[0015] Working principle: When it is necessary to add chemical powder to the treatment tank to promote sewage treatment, the chemical powder enters the surface of the carrier plate 74 through the feeding cylinder 3 under the operation of the feeding auger assembly 4. The weight is measured by the gravity sensor 73. When the gravity value on the control panel display reaches the expected value, the feeding auger assembly 4 stops working and the electric push rod 78 is activated. The electric push rod 78 causes the support base 77 to retract, and the discharge plate 72 tilts. The chemical powder on it enters the interior of the sewage treatment tank through the dosing port 6, completing the quantitative dosing of the sewage treatment tank. According to the process requirements, the flocculant powder is accurately added, which improves the sewage treatment effect and avoids waste of chemical powder.

[0016] The powder hopper 1 is installed on the sewage treatment tank via the support frame 2, and the opening area of ​​the dosing port 6 on the sewage treatment tank is larger than the bottom area of ​​the rectangular feeding frame 71.

[0017] like Figure 1-2 As shown: The opening area of ​​the dosing port 6 is larger than the bottom area of ​​the rectangular feeding frame 71. The material falling from the rectangular feeding frame 71 can be fully received through the dosing port 6. It is best to add material in the absence of wind to avoid the wind blowing the falling material away.

[0018] The quantity control and feeding component 7 includes a rectangular feeding frame 71, a discharge plate 72, a gravity sensor 73, and a carrier plate 74, and the discharge plate 72 is a rotating structure with the connecting column 75 as the center.

[0019] The rectangular unloading frame 71 has a rotating structure centered on the connecting column 75. When the support seat 77 is withdrawn and no longer supports the unloading plate 72, the unloading plate 72 flips over, causing the material on the unloading plate 72 to enter the wastewater treatment device for power generation in a thermal power plant through the dosing port 6 under the action of gravity.

[0020] Both ends of the unloading plate 72 are arc-shaped, and the upper part of the unloading plate 72 away from the connecting column 75 is limited by the limiting block 76, while the lower part of the unloading plate 72 away from the connecting column 75 is supported by the support seat 77.

[0021] like Figure 2-4 As shown: Both ends of the unloading plate 72 are arc-shaped. When the unloading plate 72 rotates inside the rectangular unloading frame 71, it will not interfere with the movement of the inner wall of the rectangular unloading frame 71.

[0022] The limiting block 76 is welded to the inner wall of the rectangular feeding frame 71, and the limiting block 76 is made of metal with a right-angled triangular cross section.

[0023] like Figure 2-3As shown: The limiting block 76 is made of metal and has a right-angled triangle structure in the cross section. The setting of the limiting block 76 can limit the unloading plate 72 inside the rectangular unloading frame 71, so that the unloading plate 72 is in a horizontal state inside the rectangular unloading frame 71.

[0024] An electric push rod 78 is installed on the rectangular feeding frame 71, and the electric push rod 78 is electrically connected to the control panel installed on the outer wall of the rectangular feeding frame 71. At the same time, the control panel is electrically connected to the gravity sensor 73, which is located at the center of the bottom of the carrier plate 74.

[0025] The operation control of the electric actuator 78, gravity sensor 73 and control panel described above is conventional technology in the field. At the same time, the connection method between the electric actuator 78, gravity sensor 73 and control panel is not part of the design of this invention. Therefore, this embodiment will not elaborate on the connection method between the electric actuator 78, gravity sensor 73 and control panel and the operating principle of their respective cylinders.

Claims

1. A quantitative dosing method using sensor detection, characterized in that: The method includes the following steps: (1) When it is necessary to add powder to the treatment tank to promote sewage treatment, the powder hopper is equipped with a feeding auger assembly. At this time, under the operation of the feeding auger assembly, the powder enters the surface of the carrier plate through the feeding cylinder. (2) Weighing is performed by gravity sensor. When the gravity value on the control panel screen reaches the expected value, the feeding auger assembly stops working. (3) Start the electric push rod switch. The electric push rod causes the support seat to retract and the unloading plate to tilt. The powder on it enters the interior of the sewage treatment tank through the dosing port, completing the quantitative dosing of the sewage treatment tank. According to the process requirements, the flocculant powder is accurately added, which improves the sewage treatment effect and avoids waste of powder.

2. The quantitative dosing method using sensor detection according to claim 1, characterized in that: The powder hopper has fixed seats welded to both sides of its bottom. A support frame is installed at the bottom of the fixed seats. The bottom of the feeding cylinder is connected to the rectangular feeding frame on the quantity control and dosing component. The bottom of the rectangular feeding frame is set opposite to the dosing port. The unloading plate of the controlled feeding component is equipped with a connecting column at its end. The unloading plate is movably installed inside the rectangular feeding frame through the connecting column. The surface of the unloading plate is connected to the carrier plate. A gravity sensor is installed at the bottom of the carrier plate.

3. The quantitative dosing method using sensor detection according to claim 2, characterized in that: The powder hopper is installed on the sewage treatment tank via a support frame, and the opening area of ​​the dosing port on the sewage treatment tank is larger than the bottom area of ​​the rectangular feeding frame.

4. The quantitative dosing method using sensor detection according to claim 3, characterized in that: The controlled feeding component includes a rectangular feeding frame, a discharge plate, a gravity sensor, and a carrier plate. The discharge plate is a rotating structure with the connecting column as the center.

5. A quantitative dosing method using sensor detection according to claim 4, characterized in that: Both ends of the unloading plate are arc-shaped. The upper part of the unloading plate away from the connecting column is limited by a limiting block, and the lower part of the unloading plate away from the connecting column is supported by a support seat.

6. The quantitative dosing method using sensor detection according to claim 5, characterized in that: The limiting block is welded to the inner wall of the rectangular feeding frame. The limiting block is made of metal and has a right-angled triangular cross-section.

7. A quantitative dosing method using sensor detection according to claim 6, characterized in that: An electric push rod is installed on the rectangular feeding frame. The electric push rod is electrically connected to a control panel installed on the outer wall of the rectangular feeding frame. The control panel is electrically connected to a gravity sensor, which is located at the center of the bottom of the carrier plate.

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