Chemical sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment devices, in particular to a chemical sewage treatment device which comprises a sedimentation tank and the like, the sedimentation tank is a main body of the sewage treatment device, an opening is formed in the top of the sedimentation tank, and supporting legs for supporting are arranged at four corners of the bottom of the sedimentation tank; the water inlet pipe is communicated with one side of the upper part of the sedimentation tank, and an electromagnetic valve I is arranged on the water inlet pipe and is used for controlling a water inlet switch of the water inlet pipe. Through the primary filter screen arranged at the opening in the top of the sedimentation tank, large suspended particles and impurities in chemical sewage can be effectively intercepted and removed, the contact and reaction speed between a sewage treatment agent and pollutants can be remarkably increased by matching the primary filter screen with the spiral stirring rod, the use efficiency of the chemical agent is improved, and the service life of the chemical agent is prolonged. And a plurality of settling ponds are sequentially connected in series, so that the sewage can be subjected to multi-stage treatment and settled, and finally, the sewage is ensured to reach the discharge standard.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment devices, in particular to a chemical sewage treatment device. Background Art

[0002] With the acceleration of industrialization, the rapid development of the chemical industry has brought about a large number of industrial wastewater problems. In order to meet this challenge, governments and international organizations have introduced a series of environmental protection laws and standards, requiring companies to take effective measures to treat the wastewater they generate and ensure that it meets the emission standards before it can be discharged into natural water bodies. This is not only to protect the environment, but also to ensure human health and social sustainable development.

[0003] Traditional wastewater treatment methods usually use sedimentation tanks and filtration devices to initially purify water in industry. The basic principle is to use gravity to settle heavier solid particles, thereby achieving solid-liquid separation. However, this method has obvious limitations: first, the treatment cycle is too long to meet the requirements of modern industry for high efficiency and speed; second, for those high-concentration and high-viscosity chemical wastewaters, the sedimentation effect of traditional processes is usually unsatisfactory, and many fine particles or dissolved pollutants are difficult to remove effectively, resulting in the effluent quality failing to meet emission standards. Therefore, we propose a chemical wastewater treatment device to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a chemical wastewater treatment device.

[0005] A chemical sewage treatment device comprises a sedimentation tank and a support leg, wherein the sedimentation tank is the main body of the sewage treatment device, the top of the sedimentation tank is provided with an opening, and the four corners of the bottom of the sedimentation tank are provided with support legs for support; it also comprises: an inlet pipe, which is arranged to be connected to the upper side of the sedimentation tank, and the inlet pipe is provided with a solenoid valve 1, and the solenoid valve 1 is used to control the water inlet switch of the inlet pipe; a drain pipe, which is arranged to be connected to the middle side of the sedimentation tank, and the drain pipe is provided with a solenoid valve 2, and the solenoid valve 2 is used to control the drain switch of the drain pipe; two covers are symmetrically installed at the top opening of the sedimentation tank; two primary filter screens are provided and symmetrically installed at the top opening of the sedimentation tank, and the primary filter screen is located below the inlet pipe, and the primary filter screen is used to preliminarily filter larger pollutants in the chemical sewage; an agitator is provided The agitator is located at the upper middle part of the sedimentation tank, and is used to accelerate the contact and reaction speed between the treatment agent and the pollutants; the baffle is provided with a sediment discharge port on one side of the lower part of the sedimentation tank, and the baffle is sealed and arranged at the sediment discharge port of the sedimentation tank through bolts. The water inlet pipes and the drainage pipes of multiple sedimentation tanks are connected in series in sequence to realize multi-stage sewage removal. After the added sewage is preliminarily filtered by the primary filter in a single sedimentation tank, the sewage treatment and precipitation chemicals are added to the sedimentation tank, and the agitator is used to accelerate the mixing and contact efficiency of the sewage and the chemicals, so that the reacted pollutants sink to the bottom of the sedimentation tank, and the relatively clear treated sewage on the upper layer of the sedimentation tank is discharged through the drainage pipe, and the discharged treated water enters the next sedimentation tank for subsequent treatment. After multi-stage sedimentation in multiple sedimentation tanks, the sewage is treated until it meets the standards.

[0006] Further description, the agitator includes: a mounting plate, fixedly mounted on the upper outer wall of the sedimentation tank; a motor, the upper part of the mounting plate is L-shaped and extends to the top center position of the sedimentation tank, and the motor is installed on the upper end of the mounting plate; a spiral stirring rod, mounted on the output shaft of the motor, the rotating shaft of the spiral stirring rod passes through the two primary filter screens, and the spiral stirring rod is driven by the motor to rotate when sewage is injected from the water inlet pipe, thereby accelerating the efficiency of sewage treatment.

[0007] It is further explained that the body of the sedimentation tank is hourglass-shaped, and the drain pipe is located in the narrow middle part of the sedimentation tank. The sedimentation tank can guide the water flow to form a specific flow pattern, so that the water flow passes through a deceleration zone before entering the sedimentation area, which helps to reduce the water flow speed and turbulence, so that the suspended particles have more time to settle, thereby improving the sedimentation efficiency.

[0008] It is further explained that a plurality of guide rails are fixedly connected to the inner wall of the top opening of the sedimentation tank, and a slide groove adapted to the guide rail is provided on the outer wall of the frame of the primary filter. The primary filter is slidably arranged at the top opening of the sedimentation tank through the slide rails cooperating with the guide rails. By lifting the primary filter upward, the primary filter can be directly lifted upward along the guide rail, which is convenient for the user to clean the pollutants filtered by the primary filter.

[0009] It is further explained that a sealing ring is provided at the sediment discharge outlet of the sedimentation tank located at the baffle, and the sealing ring is used to improve the sealing between the baffle and the sedimentation tank. A cleaning piece is provided at the bottom of the sedimentation tank, and the cleaning piece is used to regularly clean the sediment at the bottom of the sedimentation tank.

[0010] Further description, the cleaning part includes a scraper, a second guide rail and a handle. The second guide rail is symmetrically arranged on the inner wall of the sedimentation tank near the bottom. The scraper is slidably installed on the second guide rail. The scraper contacts and fits the bottom of the sedimentation tank. The scraper is fixed with a handle, and the handle is located inside the sedimentation tank. When a large amount of sewage sediment accumulates at the bottom of the sedimentation tank, the baffle is opened at the lower part of the sedimentation tank, and the scraper is pulled by the handle. Under the guidance of the second guide rail, the scraper can scrape and clean the sewage sediment at the bottom of the sedimentation tank, thereby improving the convenience of cleaning the sedimentation tank.

[0011] The beneficial effects of the utility model are as follows: 1. The utility model can effectively intercept and remove larger suspended particles and impurities in chemical wastewater by means of a primary filter screen arranged at the top opening of the sedimentation tank. The spiral stirring rod can significantly accelerate the contact and reaction speed between sewage treatment agents and pollutants, thereby improving the use efficiency of chemical agents. By connecting multiple sedimentation tanks in series in sequence, the sewage can be treated and precipitated at multiple stages, ultimately ensuring that the sewage meets the discharge standards.

[0012] 2. The utility model can help guide the water flow to form a specific flow pattern through the hourglass-shaped pool body design, reduce the water flow speed and turbulence, and prolong the sedimentation time of suspended particles, thereby greatly improving the sedimentation efficiency.

[0013] 3. The bottom of the sedimentation tank of the utility model is equipped with a guide rail and a scraper. When the bottom sediment needs to be cleaned, it is only necessary to open the baffle and pull the scraper by the handle to easily scrape and discharge the sediment, which effectively simplifies maintenance work and improves cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural sectional view of the sedimentation tank of the utility model.

[0016] Figure 3 This is a connection diagram of the primary filter, mounting plate, motor and spiral stirring rod of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the sealing ring, scraper, guide rail 2 and handle of the utility model.

[0018] Markings in the attached drawings: 1: sedimentation tank, 2: support leg, 3: water inlet pipe, 31: solenoid valve one, 4: drain pipe, 41: solenoid valve two, 5: cover, 6: guide rail one, 7: primary filter screen, 8: mounting plate, 9: motor, 10: spiral stirring rod, 11: baffle, 12: sealing ring, 13: scraper, 14: guide rail two, 15: handle. DETAILED DESCRIPTION

[0019] The present invention will now be described more fully below with reference to the accompanying drawings, in which the present invention is shown in its currently preferred embodiments. However, the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0020] Embodiment: A chemical wastewater treatment device, such as Figure 1-Figure 4As shown, it includes a sedimentation tank 1 and a support leg 2. The sedimentation tank 1 is the main body of the sewage treatment device. The top of the sedimentation tank 1 is provided with an opening, and the four corners of the bottom of the sedimentation tank 1 are provided with support legs 2 for support; it also includes: an inlet pipe 3, which is arranged to be connected to the upper side of the sedimentation tank 1, and the inlet pipe 3 is provided with an electromagnetic valve 1 31, and the electromagnetic valve 1 31 is used to control the water inlet switch of the inlet pipe 3; a drain pipe 4, which is arranged to be connected to the middle side of the sedimentation tank 1, and the drain pipe 4 is provided with an electromagnetic valve 2 41, and the electromagnetic valve 2 41 is used to control the drain switch of the drain pipe 4; a cover 5, which is symmetrically installed at the top opening of the sedimentation tank 1; a primary filter screen 7, which is provided with two and symmetrically installed at the top opening of the sedimentation tank 1, and the primary filter screen 7 is located below the inlet pipe 3, and the primary filter screen 7 is used to preliminarily filter larger pollutants in chemical wastewater; an agitator, which is arranged in the middle of the sedimentation tank 1 At the upper position, the agitator is used to accelerate the contact and reaction speed between the pollution treatment agent and the pollutants; the baffle 11, a sediment discharge port is provided on one side of the lower part of the sedimentation tank 1, and the baffle 11 is set at the sediment discharge port of the sedimentation tank 1 through bolt sealing. The water inlet pipes 3 and the drain pipes 4 of multiple sedimentation tanks 1 are connected in series in sequence to realize multi-stage sewage removal. After the added sewage is preliminarily filtered by the primary filter screen 7 in a single sedimentation tank 1, the sewage treatment and precipitation chemicals are added to the sedimentation tank 1, and the agitator is used to accelerate the mixing and contact efficiency of the sewage and the chemicals, so that the reacted pollutants sink to the bottom of the sedimentation tank 1, and the relatively clear treated sewage on the upper layer of the sedimentation tank 1 is discharged through the drain pipe 4, and the discharged treated water enters the next sedimentation tank 1 for subsequent treatment. After multi-stage sedimentation in multiple sedimentation tanks 1, the sewage is treated until it meets the standards.

[0021] like Figure 2 and Figure 3 As shown, the agitator includes: a mounting plate 8, which is fixed on the upper outer wall of the sedimentation tank 1; a motor 9, the upper part of the mounting plate 8 is L-shaped and extends to the top center of the sedimentation tank 1, and the motor 9 is installed on the upper end of the mounting plate 8; a spiral stirring rod 10, which is installed on the output shaft of the motor 9, and the rotating shaft of the spiral stirring rod 10 passes through two primary filter screens 7. The spiral stirring rod 10 is driven by the motor 9 to rotate when sewage is injected from the water inlet pipe 3, thereby accelerating the efficiency of sewage treatment.

[0022] like Figure 2As shown, the body of the sedimentation tank 1 is hourglass-shaped, and the drain pipe 4 is located in the narrow middle part of the sedimentation tank 1. The sedimentation tank 1 can guide the water flow to form a specific flow pattern, so that the water flow passes through a deceleration zone before entering the sedimentation area, which helps to reduce the water flow speed and turbulence, so that the suspended particles have more time to settle, thereby improving the sedimentation efficiency; a plurality of guide rails 6 are fixedly connected to the inner wall of the top opening of the sedimentation tank 1, and a slide groove adapted to the guide rail 6 is provided on the outer wall of the frame of the primary filter screen 7. The primary filter screen 7 is slidably arranged at the top opening of the sedimentation tank 1 through the slide rail and the guide rail 6. By lifting the primary filter screen 7 upward, the primary filter screen 7 is directly lifted upward along the guide rail 6, which is convenient for the user to clean the pollutants filtered by the primary filter screen 7.

[0023] like Figure 2 and Figure 4 As shown, a sealing ring 12 is provided at the sediment discharge outlet of the sedimentation tank 1 located at the baffle 11, and the sealing ring 12 is used to improve the sealing between the baffle 11 and the sedimentation tank 1. A cleaning piece is provided at the bottom of the sedimentation tank 1, and the cleaning piece is used to regularly clean the sediment at the bottom of the sedimentation tank 1; the cleaning piece includes a scraper 13, a second guide rail 14 and a handle 15. The second guide rail 14 is symmetrically provided on the inner wall of the sedimentation tank 1 near the bottom, and the scraper 13 is slidably installed on the second guide rail 14. The scraper 13 contacts and fits the bottom of the sedimentation tank 1. The scraper 13 is fixed with a handle 15, and the handle 15 is located inside the sedimentation tank 1. When a lot of sewage sediment accumulates at the bottom of the sedimentation tank 1, the baffle 11 is opened at the lower part of the sedimentation tank 1, and the scraper 13 is pulled by the handle 15. Under the guidance of the second guide rail 14, the scraper 13 can scrape and clean the sewage sediment at the bottom of the sedimentation tank 1, thereby improving the cleaning convenience of the sedimentation tank 1.

[0024] First, the water inlet pipes 3 and the drain pipes 4 of multiple sedimentation tanks 1 are connected in series in sequence through pipes, and then the solenoid valve 1 31 is opened and the battery valve 2 is closed. The chemical sewage is introduced into the sedimentation tank 1 through the water inlet pipe 3. When the water enters the sedimentation tank 1 from the water inlet pipe 3, it will first pass through the two primary filter screens 7 set at the top opening of the sedimentation tank 1. These two filter screens can effectively intercept larger solid impurities in the sewage, reducing the burden for subsequent treatment. At this time, the drain pipe 4 is closed, and then the sewage flows into the lower middle part of the sedimentation tank 1. At this time, the agitator installed in the middle and upper part of the sedimentation tank 1 starts to work, and the spiral stirring rod 10 is driven by the motor 9 to rotate, which accelerates the mixing and reaction process between the sewage and the pre-added chemical agents, and promotes the rapid sedimentation of pollutants. The sedimentation tank 1 is designed as an hourglass shape. This shape helps to guide the water flow to form a specific flow pattern. Before entering the sedimentation area, it passes through a deceleration zone to reduce the turbulence of the water flow and increase the sedimentation time of suspended particles, thereby improving the sedimentation efficiency. As the pollutants gradually settle to the bottom of the sedimentation tank 1, the clearer treated water on the upper layer will The drain pipe 4 is not covered. At this time, the solenoid valve 1 31 is closed and the solenoid valve 2 41 is opened, so that the treated water after precipitation is discharged through the drain pipe 4 located in the narrow middle part of the sedimentation tank 1, and the drainage process is controlled by the solenoid valve 2 41 on the drain pipe 4. The drain pipe 4 is connected to the next sedimentation tank 1 to realize multi-stage treatment of sewage. The switches of the solenoid valve 1 31 and the solenoid valve 2 41 are alternately controlled to realize that the treated water of the upper layer of the sedimentation tank 1 is always relatively clear and discharged, and enters the subsequent multi-stage sedimentation for treatment. When enough sediment is accumulated at the bottom of the sedimentation tank 1, the sediment can be removed by opening the baffle 11 located on one side of the lower part of the sedimentation tank 1. The baffle 11 is fixed by bolts, and a sealing ring 12 is provided between the baffle 11 and the sedimentation tank 1 to ensure good sealing performance. After opening the baffle 11, the sewage at the bottom of the sedimentation tank 1 is discharged first and safely collected. Then the operator can pull the scraper 13 through the handle 15 and slide along the guide rail 2 14 to scrape and clean the sediment at the bottom of the sedimentation tank 1 to ensure that the sedimentation tank 1 is always in the best working condition.

[0025] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments may be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A chemical wastewater treatment device, comprising a sedimentation tank (1) and a support leg (2), wherein the top of the sedimentation tank (1) is provided with an opening, and the four corners of the bottom of the sedimentation tank (1) are provided with support legs (2) for support; Its characteristic is that include: A water inlet pipe (3) is arranged to be connected to one side of the upper part of the sedimentation tank (1), and a solenoid valve 1 (31) is arranged on the water inlet pipe (3); A drainage pipe (4) is arranged to be connected to one side of the middle portion of the sedimentation tank (1), and a second solenoid valve (41) is arranged on the drainage pipe (4); Two covers (5) are symmetrically installed at the top opening of the sedimentation tank (1); Two primary filter screens (7) are provided and symmetrically installed at the top opening of the sedimentation tank (1), and the primary filter screens (7) are located below the water inlet pipe (3); A stirrer is arranged at an upper middle position of the sedimentation tank (1), and is used to accelerate the contact and reaction speed between the pollution treatment agent and the pollutants; A baffle (11) is provided at one side of the lower part of the sedimentation tank (1) with a sediment discharge port, and the baffle (11) is arranged at the sediment discharge port of the sedimentation tank (1) through bolt sealing, and the water inlet pipes (3) and the drainage pipes (4) of the plurality of sedimentation tanks (1) are sequentially connected in series to achieve multi-stage sewage removal.

2. A chemical wastewater treatment device according to claim 1, characterized in that: The agitator comprises: A mounting plate (8) fixedly mounted on the upper outer wall of the sedimentation tank (1); A motor (9), wherein the upper portion of the mounting plate (8) extends in an L-shape to the top center of the sedimentation tank (1), and the motor (9) is mounted on the upper end portion of the mounting plate (8); A spiral stirring rod (10) is mounted on the output shaft of the motor (9), and the rotating shaft of the spiral stirring rod (10) passes through the two primary filter screens (7).

3. A chemical wastewater treatment device according to claim 2, characterized in that: The body of the sedimentation tank (1) is hourglass-shaped, and the drainage pipe (4) is located in the narrow middle part of the body of the sedimentation tank (1).

4. A chemical wastewater treatment device according to claim 3, characterized in that: A plurality of guide rails (6) are fixedly connected to the inner wall of the top opening of the sedimentation tank (1), and a slide groove adapted to fit the guide rail (6) is provided on the outer wall of the frame of the primary filter (7). The primary filter (7) is slidably arranged at the top opening of the sedimentation tank (1) by means of the slide rails cooperating with the guide rail (6).

5. A chemical wastewater treatment device according to claim 4, characterized in that: The sedimentation tank (1) is provided with a sealing ring (12) at the sediment discharge outlet located at the baffle (11), and a cleaning piece is provided at the bottom of the sedimentation tank (1), and the cleaning piece is used to regularly clean the sediment at the bottom of the sedimentation tank (1).

6. A chemical wastewater treatment device according to claim 5, characterized in that: The cleaning member comprises a scraper (13), a second guide rail (14) and a handle (15); the second guide rail (14) is symmetrically arranged on the inner wall of the sedimentation tank (1) near the bottom; the scraper (13) is slidably mounted on the second guide rail (14); the scraper (13) contacts and fits the bottom of the sedimentation tank (1); the scraper (13) is fixedly provided with a handle (15); and the handle (15) is located inside the sedimentation tank (1).

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