A self-replenishing chemical feeder

Abstract

The application provides a self-supplementing medicament adding device, and belongs to the technical field of sewage treatment. The device comprises a reaction kettle, a sewage inlet pipe and a medicament adding pipe are arranged on the reaction kettle, a communication cavity is arranged on the medicament adding pipe, a detection part is slidably arranged in the communication cavity, the medicament adding pipe and a medicament inlet pipe are provided with a medicament discharging assembly, the medicament inlet pipe is arranged on the reaction kettle, a driving part is rotatably arranged in the sewage inlet pipe, the driving part is connected with the medicament discharging assembly through an adjusting assembly, the detection part adjusts the discharging amount of the medicament discharging assembly by adjusting the adjusting assembly, the driving part is a driving impeller, and the detection part is a float used for detecting the density of sewage. When sewage is added into the reaction kettle through the sewage inlet pipe, the driving part rotates, the rotating driving part drives the medicament discharging assembly to rotate, the rotating medicament discharging assembly discharges the medicament in the medicament adding pipe into the medicament inlet pipe and then into the sewage in the reaction kettle for reaction, the detection part in the communication cavity adjusts the position according to the density of the sewage, the detection part after the position adjustment drives the adjusting assembly to change the position, and the adjusting assembly after the position change adjusts the flow of the medicament discharging assembly to adapt to the density of the sewage.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and in particular relates to a self-replenishing dosing device. Background Technology

[0002] With social development and progress, a large amount of wastewater is generated. Wastewater contains environmentally polluting and reusable water-soluble crystals. In order to precipitate the crystals in the wastewater, an appropriate amount of chemical solution is added. The existing method is to add a certain amount of chemical solution according to the amount of wastewater to precipitate the crystals or react them into other water-insoluble precipitates. However, the traditional method of adding chemical solution only depends on the amount of wastewater. When the concentration of crystals in the wastewater changes, it may cause waste of chemical solution or low crystal precipitation rate. Summary of the Invention

[0003] In view of this, the present invention aims to propose a self-replenishing dosing device to solve the technical problem that traditional dosing methods may cause waste of medicine or low crystal precipitation rate when the concentration of crystals in wastewater changes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a self-replenishing dosing device, comprising a reaction vessel, a wastewater inlet pipe and a chemical dosing pipe provided on the reaction vessel, a connecting cavity provided on the chemical dosing pipe, a detection unit slidably provided inside the connecting cavity, a discharging assembly provided on the chemical dosing pipe and the inlet pipe, the inlet pipe being disposed on the reaction vessel, a driving unit rotatably provided inside the wastewater inlet pipe, the driving unit being connected to the discharging assembly through an adjustment assembly, and the detection unit adjusting the adjustment assembly to control the discharge rate of the discharging assembly.

[0005] Furthermore, the drug discharge assembly includes a fixed cylinder, a drug discharge column rotatably mounted on the fixed cylinder, a drug discharge groove on the drug discharge column, and an adjusting column for adjusting the capacity of the drug discharge groove slidably mounted on the drug discharge column. The adjusting column is connected to the driving unit through the adjusting assembly.

[0006] Furthermore, the driving unit is a driving impeller.

[0007] Furthermore, the adjustment component includes a movable disk, which is mounted on a movable column. The movable column is slidably mounted on a connecting column, which is mounted on a drive unit. An adjustment column is mounted on the movable column. A rotating disk is rotatably mounted on the movable disk. An adjustment groove is provided inside the rotating disk. An adjustment plate is slidably mounted inside the adjustment groove. The adjustment plate is connected to a detection unit via a drive rod. The detection unit is a float used to detect the density of wastewater.

[0008] Furthermore, the reactor is equipped with a closed assembly for controlling the switch of the water inlet pipe.

[0009] Furthermore, the sealing assembly includes a sliding seat, a sealing plate is slidably disposed inside the sliding seat, a first float is disposed at the lower end of the sealing plate, a limiting plate is disposed on the sealing plate, and the sliding seat is disposed inside the reactor and below the sewage inlet pipe.

[0010] Furthermore, a connecting pipe is provided between the drug addition pipe and the drug inlet pipe, and a drug replenishment assembly for controlling the closure of the connecting pipe is provided on the reactor.

[0011] Furthermore, the replenishment assembly includes a second float disposed inside the reactor. The second float is provided with a movable plate that slides on the reactor and the connecting pipe. The movable plate is provided with a replenishment trough, and the connecting pipe is provided with a sealing seat to prevent the replenishment trough from communicating with the outside. The movable plate slides inside the sealing seat.

[0012] Furthermore, the reactor is equipped with a limiting part for restricting the movement of the moving plate. After the sealing plate slides to the sealing sewage inlet pipe, the sealing plate drives the limiting part to release the restriction on the moving plate.

[0013] Furthermore, the limiting part includes a mounting plate, which is disposed inside the reactor. A limiting bolt is slidably disposed on the mounting plate. A spring is provided between the limiting bolt and the mounting plate to drive the limiting bolt closer to the mounting plate. A pressing inclined block is provided on the sealing plate. The sealing plate pushes the limiting bolt out of the limiting hole disposed on the moving plate by pressing the pressing inclined block.

[0014] Beneficial effects: When wastewater is added into the reactor through the wastewater inlet pipe, the drive unit rotates. The rotating drive unit drives the discharging component to rotate. The rotation discharges the chemical solution inside the chemical solution addition pipe into the inlet pipe and then into the wastewater added into the reactor for reaction. The detection unit inside the connecting cavity adjusts its position according to the density of the wastewater. The adjusted detection unit drives the adjustment component to change its position. The adjusted component adjusts the flow rate of the discharging component to match the density of the wastewater. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the self-replenishing dosing device described in this invention; Figure 2 This is a cross-sectional view of a self-replenishing dosing device according to the present invention. Figure 1 ; Figure 3 for Figure 2 Detailed enlarged diagram A; Figure 4 This is a cross-sectional view of a self-replenishing dosing device according to the present invention. Figure 2 : Figure 5 for Figure 4 Detailed enlarged diagram B; Figure 6This is a schematic diagram of the closed component structure described in this invention; Figure 7 This is a schematic diagram of the structure of the adjustment component described in this invention; Figure 8 This is a cross-sectional view of the adjustment component described in this invention; Figure 9 This is a schematic diagram of the internal structure of the drug delivery component described in this invention; Figure 10 This is a schematic diagram of the tonic component structure described in this invention; Figure 11 This is a cross-sectional view of the tonic component described in this invention; Figure 12 This is a schematic diagram of the movable plate structure described in this invention; In the diagram: 1. Reactor; 2. Wastewater inlet pipe; 3. Connecting cavity; 4. Drive unit; 5. Chemical addition pipe; 6. Chemical inlet pipe; 7. Discharge assembly; 7-1. Fixed cylinder; 7-2. Discharge column; 7-3. Discharge trough; 7-4. Adjusting column; 8. Adjusting assembly; 8-1. Moving disk; 8-2. Connecting column; 8-4. Rotating disk; 8-3. Moving column; 8-5. Adjusting trough; 8-6. Adjusting plate; 9. Detection unit; 10. Drive rod; 11. Connecting pipe; 12. Replenishing assembly; 12-1. Second float; 12-2. Moving plate; 12-3. Replenishing trough; 12-4. Limiting block; 12-5. Limiting hole; 12-6. Mounting plate; 12-7. Limiting bolt; 12-8. Extrusion inclined block; 12-9. Sealing seat; 12-10. Sealing assembly; 13. Sliding seat; 13-1. Sealing plate; 13-2. First float; 13-3. Limiting plate; 13-4. Mating hole; 13-5. Detailed Implementation

[0016] As shown in the figure, a self-replenishing dosing device includes a reaction vessel 1, a wastewater inlet pipe 2 and a chemical dosing pipe 5 on the reaction vessel 1, a connecting cavity 3 on the chemical dosing pipe 5, a detection part 9 slidably disposed inside the connecting cavity 3, a discharging assembly 7 on the chemical dosing pipe 5 and the inlet pipe 6, the inlet pipe 6 being disposed on the reaction vessel 1, a driving part 4 being rotatably disposed inside the wastewater inlet pipe 2, the driving part 4 being connected to the discharging assembly 7 via an adjusting assembly 8, the detection part 9 adjusting the adjusting assembly 8 to control the discharge rate of the discharging assembly 7, the driving part 4 being a driving impeller, and the detection part 9 being a float for detecting the density of wastewater.

[0017] When wastewater is added into the reactor 1 through the wastewater inlet pipe 2, the drive unit 4 rotates. The rotating drive unit 4 drives the discharging component 7 to rotate. The rotation discharges the medicine inside the medicine addition pipe 5 into the medicine inlet pipe 6 and then into the wastewater added into the reactor 1 for reaction. The detection unit 9 inside the connecting cavity 3 adjusts its position according to the density of the wastewater. After the position is adjusted, the detection unit 9 drives the adjustment component 8 to change its position. The adjustment component 8 adjusts the flow rate of the discharging component 7 to match the density of the wastewater.

[0018] In this embodiment, the medicine discharge assembly 7 includes a fixed cylinder 7-1, a medicine discharge column 7-2 rotatably mounted on the fixed cylinder 7-1, a medicine discharge groove 7-3 mounted on the medicine discharge column 7-2, and an adjusting column 7-4 slidably mounted on the medicine discharge column 7-2 to adjust the capacity of the medicine discharge groove 7-3. The adjusting column 7-4 is connected to the driving part 4 through the adjusting assembly 8.

[0019] The drive unit 4 rotates when replenishing sewage. The rotating drive unit 4 drives the regulating column 7-4 to rotate. The regulating column 7-4 drives the discharging column 7-2 to rotate. The rotating discharging column 7-2 introduces the medicine inside the medicine adding pipe 5 into the medicine pipe 6 through the discharging trough 7-3. The medicine adding pipe 5 is connected to the medicine storage device. The capacity of the discharging trough 7-3 can be adjusted by the adjusting component 8.

[0020] In this embodiment, the adjustment component 8 includes a movable disk 8-1, which is disposed on a movable column 8-3. The movable column 8-3 is slidably disposed on a connecting column 8-2, which is disposed on a drive unit 4. An adjustment column 7-4 is disposed on the movable column 8-3. A rotating disk 8-4 is rotatably disposed on the movable disk 8-1. An adjustment groove 8-5 is provided inside the rotating disk 8-4. An adjustment plate 8-6 is slidably disposed inside the adjustment groove 8-5. The adjustment plate 8-6 is connected to the detection unit 9 through a drive rod 10.

[0021] The detection unit 9 changes position according to the different densities of the sewage. When the sewage density increases, the detection unit 9 moves upward. The moving detection unit 9 drives the rotating disk 8-4 to move away from the discharge column 7-2 via the drive rod 10. The rotating disk 8-4 drives the moving disk 8-1 to move. The moving disk 8-1 drives the adjusting column 7-4 to move via the moving column 8-3, which makes the discharge trough 7-3 larger. Conversely, the discharge trough 7-3 decreases. The rotating drive unit 4 drives the connecting column 8-2 to rotate. The connecting column 8-2 drives the adjusting column 7-4 to rotate via the moving column 8-3. The adjusting column 7-4 drives the discharge column 7-2 to discharge the medicine.

[0022] In this embodiment, the reactor 1 is provided with a sealing assembly 13 for controlling the opening and closing of the water inlet pipe 2. The sealing assembly 13 includes a sliding seat 13-1, a sealing plate 13-2 is slidably disposed inside the sliding seat 13-1, a first float 13-3 is provided at the lower end of the sealing plate 13-2, and a limiting plate 13-4 is provided on the sealing plate 13-2. The sliding seat 13-1 is disposed inside the reactor 1 and below the sewage inlet pipe 2.

[0023] As the amount of sewage increases, the sewage drives the first float 13-3 to move upward. The moving first float 13-3 drives the sealing plate 13-2 to move until the sealing plate 13-2 moves into the mating hole 13-5 inside the upper end face of the reactor 1, at which point the addition of sewage to the reactor 1 stops, indicating that the maximum sewage carrying capacity has been reached.

[0024] In this embodiment, a connecting pipe 11 is provided between the drug addition pipe 5 and the drug inlet pipe 6. A drug replenishment assembly 12 for controlling the closure of the connecting pipe 11 is provided on the reactor 1. The drug replenishment assembly 12 includes a second float 12-1, which is disposed inside the reactor 1. A movable plate 12-2 is provided on the second float 12-1, sliding on the reactor 1 and the connecting pipe 11. A drug replenishment groove 12-3 is provided on the movable plate 12-2. The connecting pipe 11 is provided with a sealing seat 12-10 to prevent communication between the drug replenishment groove 12-3 and the outside. The movable plate 12-2 slides inside the sealing seat 12-10. The reactor 1 is provided with a device to restrict the movable plate 12-2. The movable limiting part, after the sealing plate 13-2 slides to the sealing sewage inlet pipe 2, the sealing plate 13-2 drives the limiting part to release the limiting part on the movable plate 12-2. The limiting part includes a mounting plate 12-6, which is set inside the reactor 1. A limiting bolt 12-7 is slidably provided on the mounting plate 12-6. A spring 12-8 is provided between the limiting bolt 12-7 and the mounting plate 12-6 to drive the limiting bolt 12-7 close to the mounting plate 12-6. The sealing plate 13-2 is provided with a pressing inclined block 12-9. The sealing plate 13-2 pushes the limiting bolt 12-7 out of the limiting hole 12-5 provided on the movable plate 12-2 by the pressing inclined block 12-9.

[0025] When reactor 1 stops receiving wastewater, there may be crystals in the wastewater that may not precipitate. The sealing plate 13-2 pushes the limiting bolt 12-7 out of the limiting hole 12-5 set on the moving plate 12-2 by squeezing the inclined block 12-9. The moving plate 12-2, which is released from the limit, moves upward under the action of the second float 12-1. It moves to the point where the replenishment tank 12-3 and the connecting pipe 11 are connected. Then, the medicine in the medicine addition pipe 5 enters the inlet pipe 6 through the connecting pipe 11 and continues to replenish the inside of reactor 1. As the medicine is continuously added, the density of the wastewater inside reactor 1 continuously decreases. At the same time, the buoyancy of the second float 12-1 is also continuously weakened until the replenishment tank 12-3 and the connecting pipe 11 separate, completing the wastewater treatment.

[0026] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A self-replenishing dosing device, comprising a reaction vessel (1), wherein the reaction vessel (1) is provided with a wastewater inlet pipe (2) and a chemical dosing pipe (5), characterized in that, The medicine addition pipe (5) is provided with a connecting cavity (3), and a detection part (9) is slidably provided inside the connecting cavity (3). The medicine addition pipe (5) and the medicine inlet pipe (6) are provided with a discharging component (7). The medicine inlet pipe (6) is set on the reactor (1). The sewage inlet pipe (2) is provided with a rotating drive part (4). The drive part (4) is connected to the discharging component (7) through an adjustment component (8). The detection part (9) adjusts the adjustment component (8) to control the discharge of the discharging component (7).

2. The self-replenishing dosing device according to claim 1, characterized in that, The drug discharge assembly (7) includes a fixed cylinder (7-1), a drug discharge column (7-2) is rotatably provided on the fixed cylinder (7-1), a drug discharge groove (7-3) is provided on the drug discharge column (7-2), and an adjusting column (7-4) for adjusting the capacity of the drug discharge groove (7-3) is slidably provided on the drug discharge column (7-2). The adjusting column (7-4) is connected to the driving unit (4) through the adjusting assembly (8).

3. The self-replenishing dosing device according to claim 2, characterized in that, The drive unit (4) is a drive impeller.

4. The self-replenishing dosing device according to claim 3, characterized in that, The adjustment component (8) includes a movable disk (8-1), which is mounted on a movable column (8-3). The movable column (8-3) is slidably mounted on a connecting column (8-2), which is mounted on a drive unit (4). An adjustment column (7-4) is mounted on the movable column (8-3). A rotating disk (8-4) is rotatably mounted on the movable disk (8-1). An adjustment groove (8-5) is provided inside the rotating disk (8-4). An adjustment plate (8-6) is slidably mounted inside the adjustment groove (8-5). The adjustment plate (8-6) is connected to the detection unit (9) via a drive rod (10). The detection unit (9) is a float used to detect the density of sewage.

5. A self-replenishing dosing device according to any one of claims 1-4, characterized in that, The reactor (1) is equipped with a closed assembly (13) for controlling the switch of the water inlet pipe (2).

6. A self-replenishing dosing device according to claim 5, characterized in that, The sealing assembly (13) includes a sliding seat (13-1), a sealing plate (13-2) is slidably disposed inside the sliding seat (13-1), a first float (13-3) is disposed at the lower end of the sealing plate (13-2), a limiting plate (13-4) is disposed on the sealing plate (13-2), and the sliding seat (13-1) is disposed inside the reactor (1) and below the sewage inlet pipe (2).

7. A self-replenishing dosing device according to claim 6, characterized in that, A connecting pipe (11) is provided between the drug addition pipe (5) and the drug inlet pipe (6), and a drug replenishment component (12) for controlling the closure of the connecting pipe (11) is provided on the reactor (1).

8. A self-replenishing dosing device according to claim 7, characterized in that, The replenishment assembly (12) includes a second float (12-1), which is located inside the reactor (1). The second float (12-1) is provided with a movable plate (12-2), which slides on the reactor (1) and the connecting pipe (11). The movable plate (12-2) is provided with a replenishment trough (12-3), and the connecting pipe (11) is provided with a sealing seat (12-10) to prevent the replenishment trough (12-3) from communicating with the outside. The movable plate (12-2) slides inside the sealing seat (12-10).

9. A self-replenishing dosing device according to claim 8, characterized in that, The reactor (1) is provided with a limiting part for restricting the movement of the moving plate (12-2). After the sealing plate (13-2) slides to the sealing sewage inlet pipe (2), the sealing plate (13-2) drives the limiting part to release the limiting of the moving plate (12-2).

10. A self-replenishing dosing device according to claim 9, characterized in that, The limiting part includes a mounting plate (12-6), which is disposed inside the reactor (1). A limiting bolt (12-7) is slidably disposed on the mounting plate (12-6). A spring (12-8) is provided between the limiting bolt (12-7) and the mounting plate (12-6) to drive the limiting bolt (12-7) closer to the mounting plate (12-6). A pressing inclined block (12-9) is provided on the sealing plate (13-2). The sealing plate (13-2) pushes the limiting bolt (12-7) out of the limiting hole (12-5) provided on the moving plate (12-2) by the pressing inclined block (12-9).

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