A nitrate treatment apparatus with a flow regulating mechanism

Abstract

This utility model discloses a nitrate treatment device with a flow regulation mechanism, relating to the field of chemical equipment technology. It includes a fixed pipe, an outlet pipe fixedly located at the middle of the outer side of the fixed pipe, an inlet bend fixedly located at the bottom end of the fixed pipe, a fixed seat fixedly located at the top end of the fixed pipe, and a mixing pipe fixedly located inside the fixed pipe. By configuring the fixed pipe, outlet pipe, inlet bend, and mixing pipe, when nitrate-containing wastewater passes through the mixing pipe, the wastewater pushes a piston upwards. The piston triggers a piezoelectric switch via a rod, causing the feed motor to rotate. The feed motor drives the movable sleeve to rotate, allowing the reducing agent in the storage chamber to be transported to the mixing pipe by the guide plate on the outside of the movable sleeve. The flow of nitrate-containing wastewater triggers the addition of the reducing agent, ensuring that the amount of reducing agent added is consistent with the amount of nitrate-containing wastewater discharged, thus achieving the effect of controlling the flow rate of the reducing agent.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a nitrate treatment device with a flow regulating mechanism. Background Technology

[0002] Nitrate-containing wastewater is widely distributed in industries such as metal processing, electroplating, nuclear industry, and food processing. Direct discharge of nitrate wastewater can cause excessive salinity, eutrophication, and foul odors in water bodies. Nitrates seep into the soil and enter the human body through plant absorption. Although nitrates are harmless to humans, they are easily reduced to nitrites in the body. When large amounts of nitrites are absorbed into the blood, they inhibit the oxygen-carrying capacity of the blood and affect the normal oxygen supply to tissues. Therefore, treating nitrates in wastewater is of long-term significance. However, existing equipment still has certain problems. Traditionally, appropriate amounts of chemical agents are added to the nitrate-containing wastewater for conditioning. However, the discharge of nitrate-containing wastewater is not continuous. During the chemical treatment process, reducing agents such as thiosulfate and iron powder need to be added quantitatively according to the discharge volume. However, for non-continuous discharge of nitrate-containing wastewater, the addition flow rate of reducing agents cannot be controlled according to the flow rate of the nitrate-containing wastewater, resulting in poor treatment effect.

[0003] In the prior art, such as the nitrate-containing wastewater treatment device disclosed in CN214571335U, a heating chamber is included. The inner cavity of the heating chamber is equipped with a heating component. A vacuum pump is installed at the left end of the top of the heating chamber, and the right end of the vacuum pump is connected to the heating chamber through a gas guide pipe. This invention adds a pre-mixed water treatment agent to the inner cavity of the mixing chamber, starts the first drive motor through the controller, and drives the first stirring fan blade to rotate to stir the wastewater through the first stirring shaft. At the same time, the vacuum pump is turned on, and the heating tube is controlled by the controller to heat the wastewater. The temperature of the inner cavity of the heating chamber is sensed by the temperature sensor. After the temperature of the inner cavity of the heating chamber rises to the required temperature, the heating tube is controlled to stop heating until sediment is produced at the bottom of the heating chamber. By conditioning the wastewater quality, the conversion of nitrates in the wastewater to nitrites can be enhanced, with high conversion efficiency, and it is suitable for treating wastewater with different concentrations of nitrates.

[0004] In practical applications, the above-mentioned technical solution has the problem that it is impossible to adjust the flow rate of the reducing agent according to the discharge volume of nitrate-containing wastewater.

[0005] Therefore, it is necessary to invent a nitrate treatment device with a flow regulation mechanism to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a nitrate treatment device with a flow rate adjustment mechanism to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a nitrate treatment device with a flow regulating mechanism, comprising a fixed pipe, an outlet pipe fixedly disposed at the middle of the outer side of the fixed pipe, an inlet bend fixedly disposed at the bottom end of the fixed pipe, a fixed seat fixedly disposed at the top end of the fixed pipe, a mixing pipe fixedly disposed inside the fixed pipe, an extension pipe fixedly disposed at the middle of the outer side wall of the mixing pipe and disposed inside the outlet pipe, a piston slidably disposed inside the mixing pipe, a rod fixedly disposed at the top end of the piston, and the mixing pipe... A baffle is fixedly provided at the top of the part, and a spring is provided between the baffle and the piston. A feed groove is provided through the lower surface of the baffle. A storage cover is provided above the fixed seat. A storage cavity is provided inside the storage cover. A partition cover is fixedly provided at the bottom of the storage cavity. Multiple through grooves are provided around the bottom of the outer wall of the partition cover, and the multiple through grooves are all located at the bottom of the storage cavity. A movable sleeve is provided rotatably at the top center of the partition cover via a bearing. A spiral guide plate is provided around the bottom of the outer wall of the movable sleeve, and the guide plate is located inside the partition cover.

[0008] Preferably, the top of the outer side wall of the movable sleeve is surrounded by multiple arc-shaped plates, and the multiple arc-shaped plates are all located inside the storage cavity.

[0009] Preferably, the bottom end of the partition cover is fixedly provided with a bonding plate, and the bonding plate is bonded to the upper surface of the baffle.

[0010] Preferably, an inclined feeding pipe is fixedly provided at the top of the outer side wall of the storage hood, and a hopper is fixedly provided at the top of the feeding pipe.

[0011] Preferably, a feeding motor is fixedly installed at the top of the outer side wall of the storage hood, and a transmission belt assembly is provided between the output shaft of the feeding motor and the top of the movable sleeve.

[0012] Preferably, the insertion rod is slidably inserted into the interior of the movable sleeve, and the top end of the insertion rod extends above the movable sleeve. The top end of the storage hood is fixedly provided with a support, and the top end of the support is fixedly provided with a piezoelectric switch. The piezoelectric switch is located above the insertion rod, and the piezoelectric switch is electrically connected to the feeding motor through a wire.

[0013] Preferably, the bottom end of the storage hood is fixedly provided with a connecting seat, and the connecting seat is connected to the upper surface of the fixed seat by bolts.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model, by setting up a fixed pipe, an outlet pipe, an inlet bend pipe, and a mixing pipe, allows nitrate-containing wastewater to pass through the inlet bend pipe, the mixing pipe, and the outlet pipe in sequence during the treatment process. When the nitrate-containing wastewater passes through the mixing pipe, it pushes the piston upward. The piston triggers a piezoelectric switch through a rod, causing the feed motor to rotate. The feed motor drives the movable sleeve to rotate, allowing the reducing agent in the storage chamber to be transported to the mixing pipe by the guide plate on the outside of the movable sleeve. This mixes the nitrate-containing wastewater with the reducing agent. Furthermore, the flow of the nitrate-containing wastewater triggers the addition of the reducing agent, ensuring that the amount of reducing agent added is consistent with the amount of nitrate-containing wastewater discharged, thereby controlling the flow rate of the reducing agent and ensuring the treatment effect of the nitrate-containing wastewater.

[0016] 2. This utility model, by setting up a storage hood and an arc-shaped plate, allows the movable sleeve to drive the arc-shaped plate to rotate when adding reducing agent, so that the reducing agent in the storage hood is conveyed downward, thereby ensuring the smooth addition of reducing agent and avoiding blockage. Furthermore, by setting up a spiral-structured guide plate, a bonding plate, and a baffle, when no reducing agent is being added, the bottom end of the guide plate, the bonding plate, and the baffle form a sealing structure. The reducing agent at the bottom end of the guide plate seals the top end of the mixing tube, thereby controlling the amount of reducing agent added and avoiding excessive addition of reducing agent and waste of resources. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the movable sleeve structure of this utility model.

[0021] Figure 5 This is a cross-sectional view of the material storage hood structure of this utility model.

[0022] In the diagram: 1. Fixed pipe; 2. Outlet pipe; 3. Inlet bend; 4. Fixed seat; 5. Mixing pipe; 6. Extension pipe; 7. Piston; 8. Insert rod; 9. Storage hood; 10. Storage chamber; 11. Divider cover; 12. Through groove; 13. Movable sleeve; 14. Guide plate; 15. Arc plate; 16. Adhesive plate; 17. Feeding pipe; 18. Hopper; 19. Feeding motor; 20. Support; 21. Piezoelectric switch; 22. Connecting seat; 23. Baffle; 24. Feed trough. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-5 The nitrate treatment device with a flow regulating mechanism shown includes a fixed pipe 1, an outlet pipe 2 fixedly installed on the middle of the outer side of the fixed pipe 1, an inlet bend 3 fixedly installed at the bottom end of the fixed pipe 1, a fixed seat 4 fixedly installed at the top end of the fixed pipe 1, a mixing pipe 5 fixedly installed inside the fixed pipe 1, an extension pipe 6 fixedly installed on the middle of the outer side wall of the mixing pipe 5, and the extension pipe 6 is located inside the outlet pipe 2. A piston 7 is slidably installed inside the mixing pipe 5, an insertion rod 8 is fixedly installed at the top end of the piston 7, a baffle 23 is fixedly installed at the top end of the mixing pipe 5, and a spring is installed between the baffle 23 and the piston 7. Considering that nitrate-containing wastewater will affect the metal spring, a plastic spring that is not affected by nitrate is selected in this embodiment.

[0025] A feed chute 24 is provided through the lower surface of the baffle 23. A storage cover 9 is provided above the fixed base 4. A storage cavity 10 is provided inside the storage cover 9. A partition cover 11 is fixedly provided at the bottom of the storage cavity 10. A plurality of through grooves 12 are provided around the bottom of the outer side wall of the partition cover 11. The plurality of through grooves 12 are all located at the bottom of the storage cavity 10. A movable sleeve 13 is provided rotatably at the top center of the partition cover 11 via a bearing. A spiral guide plate 14 is provided around the bottom of the outer side wall of the movable sleeve 13. The guide plate 14 is located inside the partition cover 11. The guide plate 14 can convey the reducing agent downward when it rotates.

[0026] Multiple arc-shaped plates 15 are arranged around the top of the outer side wall of the movable sleeve 13. The multiple arc-shaped plates 15 are all located inside the storage cavity 10. An inclined feeding pipe 17 is fixedly provided at the top of the outer side wall of the storage cover 9. A hopper 18 is fixedly provided at the top of the feeding pipe 17.

[0027] A bonding plate 16 is fixedly provided at the bottom end of the partition cover 11, and the bonding plate 16 is in contact with the upper surface of the baffle 23. The bonding plate 16 and the baffle 23 cooperate to achieve the connection and sealing between the partition cover 11 and the mixing tube 5. Both the bonding plate 16 and the baffle 23 have a round hole in the middle for the insertion rod 8 to pass through.

[0028] A feeding motor 19 is fixedly installed at the top of the outer wall of the storage hood 9. A transmission belt assembly is provided between the output shaft of the feeding motor 19 and the top of the movable sleeve 13. The insertion rod 8 is slidably inserted into the interior of the movable sleeve 13, and the top of the insertion rod 8 extends to the top of the movable sleeve 13. It should be noted that in order to avoid the insertion rod 8 being affected by the rotation of the movable sleeve 13, there is a gap between the insertion rod 8 and the movable sleeve 13. Furthermore, when the insertion rod 8 slides up and down, it is limited by the circular hole in the middle of the baffle 23, so that it can only move up and down and cannot deviate, so as to avoid the insertion rod 8 contacting the movable sleeve 13 and causing interference.

[0029] A support 20 is fixedly provided at the top of the storage hood 9, and a piezoelectric switch 21 is fixedly provided at the top of the support 20. The piezoelectric switch 21 is located above the insertion rod 8. The piezoelectric switch 21 is electrically connected to the feeding motor 19 through a wire. It should be noted that the piezoelectric switch 21 is used to control the start and stop of the feeding motor 19. The feeding motor 19 is equipped with a controller and a power supply. The controller can realize the speed adjustment of the feeding motor 19. The above structure adopts the corresponding structure in the prior art, and will not be described in detail here.

[0030] The bottom end of the storage cover 9 is fixedly provided with a connecting seat 22, and the connecting seat 22 is connected to the upper surface of the fixed seat 4 by bolts. The connecting seat 22 is used to realize the installation and fixation of the storage cover 9.

[0031] Working principle of this utility model:

[0032] When this device is in use, the outlet pipe 2 and the inlet bend 3 are connected to the discharge pipe of nitrate-containing wastewater through flanges. The outlet pipe 2 is connected to the reaction vessel or reaction tank for nitrate treatment, and the inlet bend 3 is connected to the discharge pipe of nitrate-containing wastewater. Thiosulfate and reducing agents such as iron powder can be added to the storage chamber 10 through the hopper 18 and the feeding pipe 17.

[0033] When nitrate-containing wastewater is discharged, it first enters the inlet bend 3. Under pressure, the wastewater squeezes the piston 7, causing it to move upwards. The wastewater then enters the mixing pipe 5. Simultaneously, the piston 7 drives the insert rod 8 upwards, causing it to press against the piezoelectric switch 21. Upon triggering the piezoelectric switch 21, the feed motor 19 is energized. The feed motor 19 drives the movable sleeve 13 via a belt, which in turn rotates the guide plate 14 and the arc-shaped plate 15. The arc-shaped plate 15 pushes the reducing agent in the storage chamber 10, causing it to pass through the channel 12 under pressure and enter the separator. The reducing agent is then guided downward through the feed trough 24 by the spiral guide plate 14, and finally falls into the mixing pipe 5. Then, the reducing agent follows the nitrate-containing wastewater into the outlet pipe 2, thus completing the addition of the reducing agent. After the nitrate-containing wastewater is discharged, the piston 7 loses pressure and moves downward under the action of the spring. At this time, the insertion rod 8 separates from the piezoelectric switch 21, and the feed motor 19 stops rotating. Correspondingly, the guide plate 14 stops rotating. At this time, the remaining reducing agent at the bottom of the guide plate 14 will block the feed trough 24 to avoid excessive addition and waste of reducing agent.

[0034] Considering that the nitrate-containing wastewater has a certain pressure when passing through the mixing pipe 5, and the wastewater will exert a force on the reducing agent at the feed tank 24 under pressure, since the guide plate 14 is in a rotating state during the wastewater discharge process, the reducing agent is kept in a downward conveying state through the feed tank 24. The downward conveying of the reducing agent can prevent the wastewater from passing through the feed tank 24 and contaminating the interior of the partition cover 11. In order to prevent the nitrate-containing wastewater from flowing back after discharge, the outlet pipe 2 can be installed at a high position of the wastewater discharge pipe, or a check valve can be installed at one end of the outlet pipe 2 to solve this problem. The above methods are conventional methods in this field and will not be described in detail here.

[0035] It should be noted that the start and end of the addition of reducing agent depend on the discharge of nitrate-containing wastewater, while the addition rate and flow rate of reducing agent depend on the rotation speed of the feed motor 19. When treating wastewater with a high nitrate content, more reducing agent needs to be added for the same flow rate. In this case, the speed can be adjusted by the controller of the feed motor 19 to achieve precise control of the amount of reducing agent added. As for the discharge flow rate of nitrate-containing wastewater, it can be achieved by adding existing structures such as flow meters and flow valves, which will not be elaborated here.

[0036] It should be further noted that the relevant structure provided in this embodiment is only used for the addition of reducing agent in the treatment of sulfate-containing wastewater. For the treatment of solid or other forms of nitrate, the nitrate can be dissolved in water before treatment. Nitrate-containing wastewater can be treated by existing structures such as reaction tanks and reaction vessels after the addition of reducing agent, which will not be elaborated here.

[0037] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0039] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nitrate treatment device with a flow regulating mechanism, comprising a fixed pipe (1), characterized in that: A water outlet pipe (2) is fixedly installed at the middle of the outer side of the fixed pipe (1). A water inlet bend pipe (3) is fixedly installed at the bottom end of the fixed pipe (1). A fixing seat (4) is fixedly installed at the top end of the fixed pipe (1). A mixing pipe (5) is fixedly installed inside the fixed pipe (1). An extension pipe (6) is fixedly installed at the middle of the outer side wall of the mixing pipe (5), and the extension pipe (6) is located inside the water outlet pipe (2). A piston (7) is slidably installed inside the mixing pipe (5). A rod (8) is fixedly installed at the top end of the piston (7). A baffle (23) is fixedly installed at the top end of the mixing pipe (5). A spring is provided between the baffle (23) and the piston (7). A feeding groove (24) is provided through the lower surface of the plate (23). A storage cover (9) is provided above the fixed base (4). A storage cavity (10) is provided inside the storage cover (9). A partition cover (11) is fixedly provided at the bottom of the storage cavity (10). A plurality of through grooves (12) are provided around the bottom of the outer wall of the partition cover (11). The plurality of through grooves (12) are all located at the bottom of the storage cavity (10). A movable sleeve (13) is provided in the middle of the top of the partition cover (11) through a bearing. A spiral guide plate (14) is provided around the bottom of the outer wall of the movable sleeve (13). The guide plate (14) is located inside the partition cover (11).

2. The nitrate treatment equipment with a flow regulating mechanism according to claim 1, characterized in that: The top of the outer side wall of the movable sleeve (13) is surrounded by multiple arc-shaped plates (15), and the multiple arc-shaped plates (15) are all located inside the storage cavity (10).

3. The nitrate treatment equipment with a flow regulating mechanism according to claim 1, characterized in that: The bottom end of the partition cover (11) is fixedly provided with a bonding plate (16), and the bonding plate (16) is bonded to the upper surface of the baffle (23).

4. The nitrate treatment equipment with a flow regulating mechanism according to claim 1, characterized in that: An inclined feeding pipe (17) is fixedly provided at the top of the outer side wall of the storage hood (9), and a hopper (18) is fixedly provided at the top of the feeding pipe (17).

5. A nitrate treatment device with a flow regulating mechanism according to claim 1, characterized in that: A feeding motor (19) is fixedly installed at the top of the outer wall of the storage hood (9), and a transmission belt assembly is provided between the output shaft of the feeding motor (19) and the top of the movable sleeve (13).

6. A nitrate treatment device with a flow regulating mechanism according to claim 5, characterized in that: The insertion rod (8) is slidably inserted into the interior of the movable sleeve (13), and the top end of the insertion rod (8) extends above the movable sleeve (13). The top end of the storage cover (9) is fixedly provided with a support (20), and the top end of the support (20) is fixedly provided with a piezoelectric switch (21), and the piezoelectric switch (21) is located above the insertion rod (8). The piezoelectric switch (21) is electrically connected to the feeding motor (19) through a wire.

7. A nitrate treatment device with a flow regulating mechanism according to claim 1, characterized in that: The bottom end of the storage hood (9) is fixedly provided with a connecting seat (22), and the connecting seat (22) is connected to the upper surface of the fixed seat (4) by bolts.

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