A sewage purification device for environmental protection

Abstract

The utility model belongs to the field of sewage purification device, specifically is a sewage purification device for environmental protection, including treatment pond, the coagulation tank, flocculator, sedimentation tank that are sequentially equipped with in treatment pond intercommunication, one side of treatment pond is equipped with a pair of delivery pipe, a pair of delivery pipe is respectively with coagulation tank, flocculator is the intercommunication relation of communicating relation, the one end of delivery pipe is connected with the spray head, and the other end is connected with the dosing device, the outer wall of delivery pipe is connected with the clean air pipe, the end of clean air pipe is connected with the compressed air source, the middle part of clean air pipe is installed with solenoid valve, through setting up clean air pipe, can carry out back flush cleaning to the crystal that gathers in the inside of spray head, realizes the cleaning work of spray head, makes the inside of spray head keep unobstructed.

Description

Technical Field

[0001] This utility model relates to the field of wastewater purification devices, specifically a wastewater purification device for environmental protection. Background Technology

[0002] Environmental protection is the cornerstone of sustainable development for human society. Its core lies in reducing interference with and damage to the natural ecosystem and actively restoring the already damaged environment. Under this grand goal, water pollution prevention and control is a crucial link, and wastewater treatment is an important engineering technology that directly affects the improvement of the water environment. By constructing and operating wastewater treatment facilities, wastewater containing large amounts of pollutants generated in production and daily life activities can be collected and purified.

[0003] In wastewater treatment processes, removing suspended solids and colloidal pollutants from water using physicochemical methods is a common and efficient step. This process is typically accomplished through the coordinated operation of coagulation tanks, flocculation tanks, and sedimentation tanks. First, wastewater enters the coagulation tank, where rapid agitation disperses the added coagulant (such as PAC), neutralizing the surface charge of colloidal particles and destabilizing them. Next, the water flows into the flocculation tank, where, under slow agitation, the destabilized microparticles collide and adsorb, agglomerating into large, easily settling flocs. Finally, the mixture flows into the sedimentation tank, where gravity causes the flocs to settle to the bottom as sludge, achieving solid-liquid separation from the supernatant and yielding purified water.

[0004] Currently, in the above-mentioned coagulation and flocculation processes, the agents usually need to be prepared into solutions and then added through metering pumps, and then evenly sprayed into the pool through nozzles. During use and observation, it was found that because the nozzle orifice diameter is small, crystals easily precipitate due to agent retention, clogging the nozzle orifices and affecting the dosing effect.

[0005] Therefore, an environmentally friendly wastewater purification device is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The wastewater purification device for environmental protection described in this utility model includes a treatment tank, in which a coagulation tank, a flocculation tank, and a sedimentation tank are sequentially arranged and interconnected. A pair of conveying pipes are provided on one side of the treatment tank, and the pair of conveying pipes are respectively connected to the coagulation tank and the flocculation tank. One end of each conveying pipe is connected to a nozzle, and the other end is connected to a dosing device. A cleaning air pipe is connected to the outer wall of the conveying pipe. A compressed air source is connected to the end of the cleaning air pipe. A solenoid valve is installed in the middle of the cleaning air pipe. By setting up the cleaning air pipe, the crystals accumulated inside the nozzle can be backflushed and removed, thus cleaning the nozzle and keeping the inside of the nozzle unobstructed.

[0008] Preferably, an orifice plate is fixedly connected to the delivery pipe near the clean air pipe; a spring is fixedly connected to the side of the orifice plate near the clean air pipe; a ball is fixedly connected to the end of the spring; a ball seat is provided inside the delivery pipe to fit against the ball; by setting the ball, the spring is in a pre-stretched state in the initial state, that is, the ball will be tightly attached to the ball seat under the action of elastic force to seal the inside of the delivery pipe. When the delivery pipe is normally delivering the medicine, the ball can be detached from the ball seat under the action of fluid impact, so that the medicine can flow normally. When the delivery pipe is backflowing, the ball can be tightly attached to the inner wall of the ball seat under the combined action of air pressure and spring elastic force to isolate the dosing device and compressed air flow at the end of the delivery pipe. At this time, the solenoid valve at the metering pump can be eliminated, reducing the layout of additional wiring.

[0009] Preferably, the nozzle is provided with a mesh cover; a pair of mounting plates are fixed to the top of the mesh cover; the outer wall of the mounting plates is provided with clamps; by setting the mesh cover, the mesh cover can seal and protect the nozzle, which can reduce the intrusion and pollution of the nozzle by flocs in the water in the treatment tank. At the same time, the mesh cover itself can be installed and removed by the cooperation of the pair of mounting plates and clamps. Each mounting plate can be a C-shaped structure, that is, a pair of mounting plates can be assembled and fixed to the outer wall of the jacket by clamps, which facilitates the timely replacement of the mesh cover after each backflushing.

[0010] Preferably, a jacket is fixed to the outer wall of the delivery pipe; a heating wire is fixed to the inner wall of the jacket; by setting the jacket and the heating wire, when the dosing device is started, the heating wire can be started simultaneously and release heat energy, and the heating wire can appropriately heat the drug inside the delivery pipe to reduce the precipitation of crystals when the drug flows. The heating temperature here can be between 30°C and 60°C. In addition, the jacket can be made of heat-insulating material to reduce the heat loss when the heating wire is working.

[0011] Preferably, the jacket is filled with heat-conducting oil. By filling the jacket with heat-conducting oil, the heat exchange area between the heat-conducting medium inside the jacket and the delivery pipe can be increased after the heating wire generates heat, thereby improving the heating effect of the heating wire on the agent in the delivery pipe. It is worth mentioning that an inspection port can be provided on the jacket to replace the oil inside the jacket periodically.

[0012] Preferably, the nozzle has a frustum structure; by setting the nozzle to a frustum structure, the side of the nozzle is inclined, which allows the agent to be sprayed in a diffuse manner through the nozzle, thereby improving the spraying effect of the agent.

[0013] The advantages of this utility model are:

[0014] 1. The wastewater purification device for environmental protection described in this utility model can backflush and remove the crystals accumulated inside the nozzle by setting a cleaning air pipe, thereby cleaning the nozzle and keeping the inside of the nozzle unobstructed.

[0015] 2. In the wastewater purification device for environmental protection described in this utility model, when the inside of the conveying pipe is backflushed, the ball can be tightly attached to the inner wall of the ball seat under the combined action of air pressure and spring force, so as to isolate the dosing device and compressed airflow at the end of the conveying pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the treatment tank in this utility model;

[0019] Figure 3 This is a schematic diagram of the jacket structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the heating wire in this utility model;

[0021] Figure 5 This is a schematic diagram of the perforated plate in this utility model.

[0022] In the diagram: 1. Treatment tank; 12. Delivery pipe; 13. Nozzle; 14. Cleaning air pipe; 15. Solenoid valve; 2. Orifice plate; 22. Spring; 23. Sphere; 3. Net; 32. Mounting plate; 33. Clamp; 4. Jacket; 42. Heating wire. 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 scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1 to 5As shown in the embodiment of this utility model, a wastewater purification device for environmental protection includes a treatment tank 1. The treatment tank 1 contains a coagulation tank, a flocculation tank, and a sedimentation tank that are sequentially connected to each other. A pair of conveying pipes 12 are provided on one side of the treatment tank 1, and the pair of conveying pipes 12 are respectively connected to the coagulation tank and the flocculation tank. One end of each conveying pipe 12 is connected to a nozzle 13, and the other end is connected to a dosing device. A cleaning air pipe 14 is connected to the outer wall of the conveying pipe 12. The end of the cleaning air pipe 14 is connected to compressed air. Source; a solenoid valve 15 is installed in the middle of the clean air pipe 14; during operation, the filtered wastewater can be sent into the treatment tank 1 by a transfer pump and pass through the coagulation tank, flocculation tank, and sedimentation tank in sequence. During the process, the dosing device connected to the end of the transfer pipe 12 will be activated and add coagulant to the corresponding coagulation tank and flocculant to the flocculation tank in the treatment tank 1 through the nozzle 13 at the end of the transfer pipe 12. The dosing device can be composed of a storage tank and a metering pump. Its specific structure and principle will not be described here. The coagulation tank with added coagulant can break the water... The stability of colloids in the body is affected by the addition of flocculants. In a flocculation tank, the addition of flocculants promotes the formation of settleable flocs from tiny particles in the water. In a sedimentation tank, the flocculated flocs are separated from the water by gravity. The clear supernatant overflows to subsequent treatment units. Initially, solenoid valve 15 is closed. Due to prolonged operation, crystals may remain inside nozzle 13. To clean nozzle 13, solenoid valve 15 can be opened, and a compressed air source (e.g., an air compressor) can be activated, allowing compressed airflow to pass through the cleaning... Air tube 14 enters the inside of delivery tube 12 and sprays out from nozzle 13. Impurities inside nozzle 13 can be flushed out by the air jet, thus cleaning nozzle 13. It is worth mentioning that a solenoid valve 15 can be correspondingly installed at the metering pump to be closed during backflush in delivery tube 12 and to isolate the metering pump. This is not shown in the figure. By setting up cleaning air tube 14, the crystals accumulated inside nozzle 13 can be backflushed and removed, thus cleaning nozzle 13 and keeping the inside of nozzle 13 unobstructed.

[0026] Please see Figure 5As shown, an orifice plate 2 is fixedly connected to the inside of the delivery pipe 12 near the cleaning air pipe 14; a spring 22 is fixedly connected to the side of the orifice plate 2 near the cleaning air pipe 14; a ball 23 is fixedly connected to the end of the spring 22; a ball seat is provided inside the delivery pipe 12 that fits against the ball 23; by setting the ball 23, the spring 22 is in a pre-stretched state in the initial state, that is, the ball 23 will be tightly attached to the ball seat under the action of elasticity to seal the inside of the delivery pipe 12. When the delivery pipe 12 is normally delivering the medicine, the ball 23 can be detached from the ball seat under the action of fluid impact, so that the medicine can flow normally. When the delivery pipe 12 is backflowing, the ball 23 can be tightly attached to the inner wall of the ball seat under the combined action of air pressure and the elasticity of the spring 22 to isolate the dosing device and the compressed air flow at the end of the delivery pipe 12. At this time, the solenoid valve 15 at the metering pump can be eliminated, reducing the layout of additional lines.

[0027] Please see Figure 3 As shown, the nozzle 13 is provided with a net 3 on its exterior; a pair of mounting plates 32 are fixed to the top of the net 3; the outer wall of the mounting plate 32 is provided with a clamp 33; by setting the net 3, the net 3 can seal and protect the nozzle 13, which can reduce the intrusion and pollution of flocs in the water in the treatment pool 1 to the nozzle 13. At the same time, the net 3 can be installed and removed by the cooperation of the pair of mounting plates 32 and the clamp 33. Each mounting plate 32 can be a C-shaped structure, that is, a pair of mounting plates 32 can be assembled and fixed to the outer wall of the jacket 4 by the clamp 33, which facilitates the timely replacement of the net 3 after each backflushing.

[0028] Please see Figure 4 As shown, a jacket 4 is fixed to the outer wall of the delivery pipe 12; a heating wire 42 is fixed to the inner wall of the jacket 4; by setting the jacket 4 and the heating wire 42, when the dosing device is started, the heating wire 42 can be started simultaneously and release heat energy. The heating wire 42 can appropriately heat the medicine inside the delivery pipe 12 to reduce the precipitation of crystals when the medicine flows. The heating temperature here can be between 30℃ and 60℃. In addition, the jacket 4 can be made of heat-insulating material to reduce the heat loss of the heating wire 42 when it is working.

[0029] Please see Figure 4 As shown, the jacket 4 is filled with heat-conducting oil. By filling the jacket 4 with heat-conducting oil, the heat exchange area between the heat-conducting medium inside the jacket 4 and the delivery pipe 12 can be increased after the heating wire 42 generates heat, thereby improving the heating effect of the heating wire 42 on the agent in the delivery pipe 12. It is worth mentioning that an inspection port can be set on the jacket 4 to replace the oil inside the jacket 4 periodically.

[0030] Please see Figure 4As shown, the nozzle 13 has a frustum structure; by setting the nozzle 13 to a frustum structure, the side of the nozzle 13 is inclined, which allows the agent to be sprayed in a diffuse manner through the nozzle 13, thereby improving the spraying effect of the agent.

[0031] Working principle: Filtered wastewater is pumped into treatment tank 1 and sequentially passes through a coagulation tank, flocculation tank, and sedimentation tank. During this process, the dosing device connected to the end of the delivery pipe 12 is activated, adding coagulant to the corresponding coagulation tank and flocculant to the corresponding flocculation tank through the nozzle 13 at the end of the delivery pipe 12. The dosing device can specifically consist of a storage tank and a metering pump; its specific structure and principle will not be detailed here. The coagulation tank with added coagulant breaks down the stability of colloids in the water, while the flocculation tank with added flocculant promotes the formation of settleable flocs from tiny particles in the water. The sedimentation tank then separates and removes the flocculated flocs from the water by gravity, and the clear supernatant overflows to the next sedimentation tank. In the subsequent processing unit, the solenoid valve 15 is initially closed. Due to prolonged operation, crystals may remain inside the nozzle 13. To clean the nozzle 13, the solenoid valve 15 is opened, and the compressed air source (e.g., an air compressor) is activated. Compressed air flows through the cleaning air pipe 14 into the delivery pipe 12 and exits from the nozzle 13. Impurities inside the nozzle 13 are flushed out by the air jet, thus cleaning the nozzle 13. It is worth noting that a solenoid valve 15 can be correspondingly installed at the metering pump to close during backflush in the delivery pipe 12 and isolate the metering pump (not shown in the figure). By setting the ball 23, in the initial state... When spring 22 is in a pre-stretched state, ball 23 will be tightly pressed against ball seat under the action of elastic force to seal the inside of delivery pipe 12. When the agent is being delivered normally inside delivery pipe 12, ball 23 can be released from ball seat under the action of fluid impact, allowing the agent to flow normally. When the inside of delivery pipe 12 is backflowing, ball 23 can be tightly pressed against the inner wall of ball seat under the combined action of air pressure and spring force 22 to isolate the dosing device and compressed air flow at the end of delivery pipe 12. At this time, the solenoid valve 15 at metering pump can be eliminated, reducing the layout of additional wiring. By setting up net 3, net 3 can seal and protect nozzle 13, which can reduce the intrusion of flocs in the water in treatment tank 1 into nozzle 13 and the pollution. The dosing device is equipped with a pair of mounting plates 32 and clamps 33, which can be used to install and remove the net 3 itself. Each mounting plate 32 can be a C-shaped structure. That is, a pair of mounting plates 32 can be assembled and fixed to the outer wall of the jacket 4 by clamps 33, which facilitates the timely replacement of the net 3 after each backflushing. By setting the jacket 4 and heating wire 42, when the dosing device is started, the heating wire 42 can be started simultaneously and release heat energy. The heating wire 42 can appropriately heat the agent inside the delivery pipe 12 to reduce the precipitation of crystals when the agent flows. The heating temperature can be between 30℃ and 60℃. In addition, the jacket 4 can be made of heat-insulating material to reduce the heat loss of the heating wire 42 when it is working.By filling the jacket 4 with heat-conducting oil, the heat exchange area between the heat-conducting medium inside the jacket 4 and the delivery pipe 12 after the heating wire 42 generates heat can be increased, thereby improving the heating effect of the heating wire 42 on the agent in the delivery pipe 12. It is worth mentioning that an inspection port can be provided on the jacket 4 to periodically replace the oil inside the jacket 4. By setting the nozzle 13 as a frustum structure, making the side of the nozzle 13 inclined, the agent can be diffused and sprayed through the nozzle 13, improving the spraying effect of the agent.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wastewater purification device for environmental protection, comprising a treatment tank (1), wherein a coagulation tank, a flocculation tank, and a sedimentation tank are sequentially arranged and interconnected within the treatment tank (1), characterized in that: A pair of conveying pipes (12) are provided on one side of the treatment tank (1), and the pair of conveying pipes (12) are connected to the coagulation tank and the flocculation tank respectively; one end of the conveying pipe (12) is connected to a nozzle (13), and the other end is connected to a dosing device; a cleaning air pipe (14) is connected to the outer wall of the conveying pipe (12); a compressed air source is connected to the end of the cleaning air pipe (14); and a solenoid valve (15) is installed in the middle of the cleaning air pipe (14).

2. The wastewater purification device for environmental protection according to claim 1, characterized in that: A perforated plate (2) is fixedly connected inside the delivery pipe (12) near the cleaning air pipe (14); a spring (22) is fixedly connected to the side of the perforated plate (2) near the cleaning air pipe (14); a ball (23) is fixedly connected to the end of the spring (22); a ball seat that fits against the ball (23) is provided inside the delivery pipe (12).

3. The wastewater purification device for environmental protection according to claim 2, characterized in that: The nozzle (13) is provided with a net (3) on the outside; a pair of mounting plates (32) are fixed to the top of the net (3); and the outer wall of the mounting plate (32) is provided with a clamp (33).

4. The wastewater purification device for environmental protection according to claim 3, characterized in that: The outer wall of the conveying pipe (12) is fixedly connected to a jacket (4); the inner wall of the jacket (4) is fixedly connected to a heating wire (42).

5. The wastewater purification device for environmental protection according to claim 4, characterized in that: The jacket (4) is filled with heat-conducting oil.

6. The wastewater purification device for environmental protection according to claim 5, characterized in that: The nozzle (13) has a frustum structure.

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