A coagulant quantitative feeding device for industrial wastewater treatment

Abstract

This utility model relates to the field of wastewater treatment technology, and in particular to a quantitative coagulant dispensing device for industrial wastewater treatment. The output end of a motor extends into a storage cylinder and is fixedly connected to a coupling. A threaded extrusion component is fixedly connected to the coupling, and the threaded extrusion component cooperates with a fixed pipe. A mounting plate is fixedly connected to the fixed pipe, and a servo motor is fixedly connected to the lower surface of the mounting plate. The output end of the servo motor extends into a wastewater treatment tank and is fixedly connected to a baffle. After the motor is started, the threaded extrusion component rotates a set number of times via the coupling. With the cooperation of the fixed pipe, the threaded extrusion component extrudes and releases powdered coagulant from the storage cylinder. When the threaded extrusion component rotates at a constant speed under the drive of the motor, its spiral groove conveys material with a constant geometric volume. The volume of material pushed in each rotation cycle remains consistent, improving the accuracy of quantitative coagulant dispensing and reducing errors.

Description

Technical Field

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

[0002] Industrial wastewater includes production wastewater, industrial sewage, and cooling water. It refers to the wastewater and waste liquid generated during industrial production processes. It contains industrial production materials, intermediate products, by-products, and pollutants generated during production that are lost with the water. When treating industrial wastewater, it is necessary to add coagulants to it. The addition of coagulants is a key step in ensuring the water purification effect.

[0003] In the existing technology, when adding powdered coagulants, the amount of powdered coagulants is measured by a metering instrument to ensure the accuracy of the dosage. However, the crystal hardness of powdered coagulants is relatively high, and the sharp edges of the powdered coagulants during the release process will cause continuous abrasive wear on the key components of the metering equipment, resulting in a certain error in the metering instrument and thus inaccurate dosage of powdered coagulants. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the sharp edges of powdered coagulants during release cause continuous abrasive wear on key components of metering equipment, leading to measurement errors and inaccurate dosage of powdered coagulants. Therefore, this invention proposes a quantitative coagulant dosing device for industrial wastewater treatment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a device for quantitative dispensing of coagulant for industrial wastewater treatment, comprising a fixed pipe connected to the upper end of a wastewater treatment tank, a storage cylinder connected to the upper end of the fixed pipe, a motor fixedly connected to the upper end of the storage cylinder, the output end of the motor extending into the storage cylinder and fixedly connected to a coupling, a threaded extrusion component fixedly connected to the coupling, the threaded extrusion component cooperating with the fixed pipe, a mounting plate fixedly connected to the fixed pipe, a servo motor fixedly connected to the lower surface of the mounting plate, the output end of the servo motor extending into the wastewater treatment tank and fixedly connected to a baffle, the upper end of the baffle contacting the bottom end of the fixed pipe.

[0007] Preferably, the fixing tube and the storage cylinder are an integral structure.

[0008] Preferably, the threaded extrusion component is a stainless steel threaded extrusion component.

[0009] Preferably, a fixing sleeve is fixedly connected to the threaded extrusion member, and a first scraper is fixedly connected to the fixing sleeve. The first scraper is in contact with the inner wall of the storage cylinder. A second scraper is fixedly connected to the threaded extrusion member, and a gap is provided between the second scraper and the inner bottom end of the storage cylinder.

[0010] Preferably, the upper end of the baffle is provided with a groove, the groove is provided with an elastic airbag, and a sealing gasket is fixedly connected to the upper end of the baffle, and the elastic airbag is in contact with the lower surface of the sealing gasket.

[0011] Preferably, the sealing gasket is a corrosion-resistant rubber sealing gasket.

[0012] Preferably, a drying mechanism is fixedly connected to the upper inner end of the storage cylinder. The drying mechanism includes a circular ring plate, which is fixedly connected to the upper inner end of the storage cylinder. A mesh cover is fixedly connected to the lower surface of the circular ring plate, and a moisture-absorbing filler layer is provided inside the mesh cover.

[0013] Preferably, the moisture-absorbing filler layer is a silica gel desiccant filler layer.

[0014] The present invention provides a quantitative dosing device for coagulant in industrial wastewater treatment, which has the following advantages:

[0015] After the motor is started, the threaded extrusion component is driven to rotate a set number of times through the coupling. After the threaded extrusion component rotates, it squeezes and releases the powdered coagulant in the storage cylinder with the cooperation of the fixed pipe. When the threaded extrusion component rotates at a constant speed under the drive of the motor, its spiral groove conveys the material with a constant geometric volume. The volume of material pushed in each rotation cycle remains consistent, which improves the accuracy of the quantitative dosing of coagulant and reduces errors. Attached Figure Description

[0016] Figure 1 This invention provides a schematic diagram of the structure of a quantitative coagulant dosing device for industrial wastewater treatment. Figure 1 ;

[0017] Figure 2 This invention provides a schematic diagram of the structure of a quantitative coagulant dosing device for industrial wastewater treatment. Figure 2 ;

[0018] Figure 3 This is a cross-sectional structural schematic diagram of a coagulant quantitative dosing device for industrial wastewater treatment proposed in this utility model.

[0019] Figure 4 for Figure 3 A magnified view of the structure at point A above;

[0020] Figure 5This is a schematic diagram of the connection between the mounting plate and the servo motor in a quantitative dispensing device for coagulant in industrial wastewater treatment proposed in this utility model.

[0021] In the diagram: 1. Fixed pipe; 2. Wastewater treatment tank; 3. Storage cylinder; 4. Motor; 5. Coupling; 6. Threaded extrusion part; 7. Mounting plate; 8. Servo motor; 9. Baffle; 10. Fixed sleeve; 11. First scraper; 12. Second scraper; 13. Groove; 14. Elastic airbag; 15. Sealing gasket; 16. Drying mechanism; 161. Circular plate; 162. Mesh cover; 163. Moisture-absorbing filler layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1: Refer to Figure 1-3 and Figure 5 A quantitative dispensing device for coagulant in industrial wastewater treatment includes a fixed pipe 1 connected to the upper end of a wastewater treatment tank 2. The upper end of the fixed pipe 1 is connected to a storage cylinder 3, and the fixed pipe 1 and the storage cylinder 3 are integrally formed. A motor 4 is fixedly connected to the upper end of the storage cylinder 3. The output end of the motor 4 extends into the storage cylinder 3 and is fixedly connected to a coupling 5. A threaded extrusion part 6 is fixedly connected to the coupling 5. The threaded extrusion part 6 is a stainless steel threaded extrusion part and cooperates with the fixed pipe 1. A mounting plate 7 is fixedly connected to the fixed pipe 1. A servo motor 8 is fixedly connected to the lower surface of the mounting plate 7. The output end of the servo motor 8 extends into the wastewater treatment tank 2 and is fixedly connected to a baffle 9. The upper end of the baffle 9 contacts the bottom end of the fixed pipe 1.

[0024] Work process:

[0025] Initially, the baffle 9 blocks and seals the bottom end of the fixed pipe 1. When the coagulant is added, the controller controls the servo motor 8 to drive the baffle 9 to rotate clockwise by a set angle. After the baffle 9 rotates, it is misaligned and separated from the bottom end of the fixed pipe 1.

[0026] The controller controls the motor 4 to start. After the motor 4 starts, it drives the threaded extrusion component 6 to rotate a set number of times through the coupling 5. After the threaded extrusion component 6 rotates, it squeezes and releases the powdered coagulant in the storage cylinder 3 with the cooperation of the fixed pipe 1. This allows the powdered coagulant to pass through the fixed pipe 1 and enter the wastewater treatment tank 2. When the threaded extrusion component 6 rotates at a constant speed under the drive of the motor 4, its spiral groove conveys the material with a constant geometric volume. The volume of material pushed in each rotation cycle remains consistent, which improves the accuracy of the quantitative dosing of coagulant and reduces errors. At the same time, the threaded extrusion component 6 conveys the material by rotating mechanical motion, avoiding mechanical wear caused by frequent start-stop or throttling. Even with long-term operation, the wear of the screw has little impact on the conveying capacity.

[0027] Example 2: When the powdered coagulant is stored in the storage cylinder 3, the powdered coagulant tends to clump together. (Refer to...) Figure 3-4 As another preferred embodiment of this utility model, the difference from embodiment 1 is that a fixed sleeve 10 is fixedly connected to the threaded extrusion member 6, a first scraper 11 is fixedly connected to the fixed sleeve 10, the first scraper 11 is in contact with the inner wall of the storage cylinder 3, a second scraper 12 is fixedly connected to the threaded extrusion member 6, and a gap is provided between the second scraper 12 and the inner bottom end of the storage cylinder 3.

[0028] The threaded extrusion member 6 drives the fixed sleeve 10 to rotate, and the fixed sleeve 10 drives the first scraper 11 to rotate. After the first scraper 11 rotates, it stirs the powder coagulant inside and outside the storage cylinder 3. At the same time, the threaded extrusion member 6 drives the second scraper 12 to rotate. After the second scraper 12 rotates, it stirs the powder coagulant at the bottom of the storage cylinder 3, thereby reducing the agglomeration of powder coagulant in the storage cylinder 3.

[0029] Example 3: When the baffle 9 blocks and seals the bottom end of the fixed tube 1, there is a gap between the bottom end of the fixed tube 1 and the baffle 9, which reduces the sealing effect of the baffle 9. (Refer to...) Figure 3 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the upper end of the baffle 9 is provided with a groove 13, and an elastic airbag 14 is provided in the groove 13. A sealing gasket 15 is fixedly connected to the upper end of the baffle 9. The elastic airbag 14 is in contact with the lower surface of the sealing gasket 15. The sealing gasket 15 is a corrosion-resistant rubber sealing gasket. When the baffle 9 contacts the bottom end of the fixed tube 1, the bottom end of the fixed tube 1 squeezes the sealing gasket 15, and the sealing gasket 15 squeezes the elastic airbag 14. The elastic airbag 14 generates elastic force after being compressed. The elastic force generated by the elastic airbag 14 squeezes the sealing gasket 15. The sealing gasket 15 seals the gap between the bottom end of the fixed tube 1 and the baffle 9, thereby improving the shielding and sealing effect of the baffle 9 on the fixed tube 1.

[0030] Example 4: When the powdered coagulant is stored in storage cylinder 3, it is prone to moisture absorption and clumping. (Refer to...) Figure 4As another preferred embodiment of this utility model, the difference from embodiment 1 is that a drying mechanism 16 is fixedly connected to the upper end of the inside of the storage cylinder 3. The drying mechanism 16 includes a circular ring plate 161, which is fixedly connected to the upper end of the inside of the storage cylinder 3. A mesh cover 162 is fixedly connected to the lower surface of the circular ring plate 161. A moisture-absorbing filler layer 163 is provided inside the mesh cover 162. The moisture-absorbing filler layer 163 is a silica gel desiccant filler layer. The circular ring plate 161 fixes the mesh cover 162, and the mesh cover 162 fixes the moisture-absorbing filler layer 163. The moisture-absorbing filler layer 163 absorbs moisture and dries the powder coagulant in the storage cylinder 3, preventing the powder coagulant from absorbing moisture and clumping.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quantitative dispensing device for coagulant in industrial wastewater treatment, comprising a fixed pipe (1) connected to the upper end of a wastewater treatment tank (2), wherein the upper end of the fixed pipe (1) is connected to a storage cylinder (3), characterized in that, in: A motor (4) is fixedly connected to the upper end of the storage cylinder (3). The output end of the motor (4) extends into the storage cylinder (3) and is fixedly connected to a coupling (5). A threaded extrusion part (6) is fixedly connected to the coupling (5). The threaded extrusion part (6) cooperates with the fixed pipe (1). A mounting plate (7) is fixedly connected to the fixed pipe (1). A servo motor (8) is fixedly connected to the lower surface of the mounting plate (7). The output end of the servo motor (8) extends into the wastewater treatment tank (2) and is fixedly connected to a baffle (9). The upper end of the baffle (9) contacts the bottom end of the fixed pipe (1).

2. The coagulant dosing apparatus for industrial wastewater treatment according to claim 1, characterized by The fixed tube (1) and the storage cylinder (3) are an integral structure.

3. The coagulant dosing apparatus for industrial wastewater treatment according to claim 1, characterized by The threaded extrusion part (6) is a stainless steel threaded extrusion part.

4. The coagulant dosing apparatus for industrial wastewater treatment according to claim 1, characterized by A fixed sleeve (10) is fixedly connected to the threaded extrusion part (6), and a first scraper (11) is fixedly connected to the fixed sleeve (10). The first scraper (11) is in contact with the inner wall of the storage cylinder (3). A second scraper (12) is fixedly connected to the threaded extrusion part (6), and a gap is provided between the second scraper (12) and the inner bottom end of the storage cylinder (3).

5. The coagulant dosing apparatus for industrial wastewater treatment according to claim 1, characterized by The upper end of the baffle (9) is provided with a groove (13), and an elastic airbag (14) is provided in the groove (13). A sealing gasket (15) is fixedly connected to the upper end of the baffle (9), and the elastic airbag (14) is in contact with the lower surface of the sealing gasket (15).

6. The quantitative dosing device for coagulant in industrial wastewater treatment according to claim 5, characterized in that, The sealing gasket (15) is a corrosion-resistant rubber sealing gasket.

7. The coagulant dosing apparatus for industrial wastewater treatment according to claim 1, wherein A drying mechanism (16) is fixedly connected to the upper inside of the storage cylinder (3). The drying mechanism (16) includes a circular ring plate (161), which is fixedly connected to the upper inside of the storage cylinder (3). A mesh cover (162) is fixedly connected to the lower surface of the circular ring plate (161), and a moisture-absorbing filler layer (163) is provided inside the mesh cover (162).

8. The coagulant dosing apparatus for industrial wastewater treatment according to claim 7, characterized by The moisture-absorbing filler layer (163) is a silica gel desiccant filler layer.

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