A chlor-alkali chemical wastewater purification treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, and specifically to a chlor-alkali chemical wastewater purification treatment device, including a base and a pretreatment frame, wherein the base is an assembly carrier of the treatment device, and the pretreatment frame is fixedly installed on the base, and the pretreatment frame is a guide groove frame with an opening on one side; it also includes an inner inlet mesh grille, etc., wherein a mounting frame is fixedly installed across the middle of the pretreatment frame, and an electric roller is installed on the top of the mounting frame, and a guide roller is rotatably installed at the bottom of the mounting frame of the pretreatment frame, and an inner inlet mesh grille is wound between the electric roller and the guide roller. The utility model uses a dynamic filtering mechanism driven by an electric roller to efficiently remove large particle impurities from wastewater when it enters the system, and cooperates with an air pump to spray clean filtered impurities into the inner inlet mesh grille through a nozzle, thereby ensuring the continuous and efficient operation of the filtration system and simplifying the maintenance of the inner inlet mesh grille.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a chlor-alkali chemical wastewater purification treatment device. Background Art

[0002] With increasingly stringent environmental regulations and technological advances, traditional wastewater treatment methods can no longer meet the needs of modern industrial development. Especially in the chlor-alkali chemical industry, due to its special production process, the wastewater produced has complex components and is difficult to treat. Therefore, the development of efficient and economical chlor-alkali chemical wastewater purification and treatment equipment has become an important issue in the industry.

[0003] Chlor-alkali chemical industry is an important part of modern chemical industry. In the production process, a large amount of wastewater will inevitably be generated. These wastewaters contain high concentrations of chlorides, heavy metal ions, organic pollutants and suspended particles. The suspended particles, fibrous substances and colloids in the chlor-alkali chemical wastewater are easy to adhere to the filter, causing the filter holes to gradually become smaller or even completely blocked. Traditional filter devices mostly adopt a fixed design. Once blocked, they need to be shut down for disassembly and cleaning. This process is complicated and time-consuming, which seriously affects the operating efficiency of the equipment. Therefore, how to more efficiently treat this type of wastewater and solve the problem of filter blockage, we provide a chlor-alkali chemical wastewater purification treatment device. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, a chlor-alkali chemical wastewater purification treatment device is provided.

[0005] The technical implementation scheme of the utility model is: a chlor-alkali chemical wastewater purification treatment device, including a base and a pretreatment frame, the base is an assembly carrier of the treatment device, the pretreatment frame is fixedly installed on the base, and the pretreatment frame is a guide groove frame with an opening on one side; it also includes an inner inlet mesh grille, a baffle, a purification tank, an isolation plate, a flocculation tank, a sedimentation tank, a submersible pump and a liquid pump, a mounting frame is fixedly installed across the middle of the pretreatment frame, an electric roller is installed on the top of the mounting frame, and a guide roller is rotatably installed at the bottom of the mounting frame of the pretreatment frame, the inner inlet mesh grille is wound between the electric roller and the guide roller, and the inner inlet mesh grille near the inner inlet mesh grille in the pretreatment frame A baffle is symmetrically fixed on one side of the water-facing surface, and the baffle is used to guide the water flow to pass through the inner inlet mesh grille. A purification tank is arranged at the outlet of the pretreatment frame, and the purification tank is used to preliminarily neutralize and adjust the pH value in the wastewater. A flocculation tank is arranged on one side of the purification tank separated by an isolation plate, and the flocculation tank is used to flocculate metal ions in the wastewater. A submersible pump is installed at the bottom of the purification tank, and the submersible pump is connected to the flocculation tank through a pipeline. A sedimentation tank is also separated from the purification tank and the flocculation tank on one side by an isolation plate, and the sedimentation tank is used to further precipitate and filter the flocculated wastewater. A liquid pump is installed on the upper part of the flocculation tank, and the liquid pump is connected to the sedimentation tank through a pipeline.

[0006] Optionally, an air pump is fixedly installed on the outer frame wall of the pretreatment frame, and the air outlet of the air pump is connected to the interior of the installation frame through an air pipe. A nozzle is installed at the air outlet of the air pipe, and the nozzle is located between the installation frame and the inner inlet mesh grille. The nozzle is used to spray and clean impurities filtered out of the inner inlet mesh grille, so as to facilitate the subsequent centralized cleaning and collection of the filtered impurities.

[0007] Optionally, a guide frame is fixedly mounted on the mounting frame, the guide frame is located between the inner inlet mesh grilles, the height of the guide frame is lower than the cleaning height of the water spray, a collecting frame is provided on the base, the drainage end of the guide frame leads to the collecting frame, and the collecting frame is used to collect impurities and waste liquid diverted by the guide frame.

[0008] Optionally, an inclined plate is also included. The sedimentation tank is provided with an inclined plate. The inclined plates are provided in plurality and are arranged on the inner wall of the sedimentation tank at equal intervals. The inclined plates are used to increase the actual area for particle settling, thereby improving the settling speed and efficiency.

[0009] Optionally, a pH sensor is also included. The purification tank is equipped with a pH sensor, and the pH sensor is used to monitor the pH value changes of the waste liquid in the purification tank in real time so that the user can understand and adjust the pH value of the waste liquid.

[0010] Optionally, two storage tanks are also installed on the base, and the storage tanks correspond to the purification tank and the flocculation tank respectively. The two storage tanks store pH neutralizing liquid and flocculant respectively. The storage tanks are connected to the corresponding purification tank and flocculation tank through discharge pipes. One side of the two storage tanks is equipped with a metering pump. The pH neutralizing liquid and flocculant in the two storage tanks can be quantitatively controlled by the corresponding metering pumps and added to the purification tank and flocculation tank respectively.

[0011] The utility model has the following advantages:

[0012] 1. The utility model uses a dynamic filtering mechanism driven by an electric roller to efficiently remove large particles of impurities from wastewater when it enters the system. The air pump sprays air through the nozzle to the inner inlet mesh grille to clean the filtered impurities, ensuring the continuous and efficient operation of the filtration system and simplifying the maintenance of the inner inlet mesh grille.

[0013] 2. The wastewater treated by the utility model is sequentially subjected to neutralization and adjustment in the purification tank, metal ion flocculation in the flocculation tank and further sedimentation and filtration in the sedimentation tank, ensuring that various pollutants in the wastewater are comprehensively and effectively treated.

[0014] 3. The utility model can also be equipped with storage tanks for storing pH neutralizing solution and flocculant respectively, and quantitatively control the addition of the pH neutralizing solution and flocculant into the corresponding treatment pool through a metering pump, thereby ensuring the rational use of chemical agents and the consistency of treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 This is a connection diagram of the pre-treatment frame and the inner inlet mesh grille of the utility model.

[0017] Figure 3 This is a positional relationship diagram of the purification tank, isolation plate, flocculation tank and sedimentation tank of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the storage tank, metering pump and discharge pipe of the utility model.

[0019] The meaning of the reference numerals in the figure are as follows: 1: base, 2: pretreatment frame, 21: installation frame, 3: internal inlet mesh grille, 31: electric roller, 32: guide roller, 4: baffle, 5: purification tank, 6: isolation plate, 61: flocculation tank, 62: sedimentation tank, 7: inclined plate, 71: submersible pump, 72: liquid pump, 8: air pump, 9: air pipe, 10: nozzle, 11: guide frame, 12: collection frame, 13: pH sensor, 14: storage tank, 15: metering pump, 16: discharge pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0021] A chlor-alkali chemical wastewater purification treatment device, such as Figure 1-Figure 4 As shown, it includes a base 1 and a pretreatment frame 2, the base 1 is an assembly carrier of the treatment device, the pretreatment frame 2 is fixedly installed on the base 1, and the pretreatment frame 2 is a guide groove frame with an opening on one side; it also includes an inner inlet mesh grille 3, a baffle 4, a purification tank 5, an isolation plate 6, a flocculation tank 61, a sedimentation tank 62, a submersible pump 71 and a liquid pump 72, a mounting frame 21 is fixedly installed across the middle of the pretreatment frame 2, a motorized roller 31 is installed on the top of the mounting frame 21, a guide roller 32 is rotatably installed at the bottom of the mounting frame 21 of the pretreatment frame 2, the inner inlet mesh grille 3 is wound between the motorized roller 31 and the guide roller 32, a baffle 4 is symmetrically fixed on one side of the water-facing surface of the inner inlet mesh grille 3 in the pretreatment frame 2, the baffle 4 is used to guide the water flow to pass through the inner inlet mesh grille 3, a purification tank 5 is arranged at the outlet of the pretreatment frame 2, and the purification tank 5 is used to preliminarily neutralize and adjust the p in the wastewater h value, a flocculation tank 61 is provided on one side of the purification tank 5 through an isolation plate 6, and the flocculation tank 61 is used to flocculate metal ions in the wastewater. A submersible pump 71 is installed at the bottom of the purification tank 5, and the submersible pump 71 is connected to the flocculation tank 61 through a pipeline. A sedimentation tank 62 is also provided on one side of the purification tank 5 and the flocculation tank 61 through an isolation plate 6, and the sedimentation tank 62 is used to further precipitate and filter the flocculated wastewater. A liquid pump 72 is installed on the upper part of the flocculation tank 61, and the liquid pump 72 is connected to the sedimentation tank 62 through a pipeline. The inner inlet mesh grille 3 is driven by the electric roller 31 to rotate and filter, so that the inner inlet mesh grille 3 can dynamically filter the wastewater, so that the impurities on the inner inlet mesh grille 3 after preliminary filtration are convenient for subsequent cleaning, and the preliminary filtered wastewater will flow through the purification tank 5, the flocculation tank 61 and the sedimentation tank 62 for distributed purification treatment in sequence, so that the wastewater can be fully purified.

[0022] like Figure 2 As shown, an air pump 8 is fixedly installed on the outer frame wall of the pretreatment frame 2, and the air outlet of the air pump 8 is connected to the inside of the installation frame 21 through an air pipe 9. A nozzle 10 is installed at the air outlet of the air pipe 9. The nozzle 10 is located between the installation frame 21 and the inner inlet mesh grille 3. The nozzle 10 is used to spray and clean the impurities filtered out of the inner inlet mesh grille 3, so as to facilitate the subsequent centralized cleaning and collection of the filtered impurities.

[0023] like Figure 1 and Figure 2As shown, a guide frame 11 is fixedly installed on the installation frame 21, and the guide frame 11 is located between the inner inlet mesh grilles 3. The height of the guide frame 11 is lower than the cleaning height of the water spray. A collecting frame 12 is provided on the base 1, and the drainage end of the guide frame 11 leads to the collecting frame 12. The collecting frame 12 is used to collect impurities and waste liquid diverted by the guide frame 11.

[0024] like Figure 3 As shown, an inclined plate 7 is also included. The sedimentation tank 62 is provided with an inclined plate 7. A plurality of inclined plates 7 are provided and are equidistantly spaced on the inner wall of the sedimentation tank 62. The inclined plates 7 are used to increase the actual area for particle sedimentation, thereby improving the sedimentation speed and efficiency.

[0025] like Figure 3 As shown, a pH sensor 13 is also included. The purification tank 5 is equipped with the pH sensor 13. The pH sensor 13 is used to monitor the waste liquid in the purification tank 5 in real time and the pH value change, so that the user can understand and adjust the pH value of the waste liquid.

[0026] like Figure 3 and Figure 4 As shown, two storage tanks 14 are also installed on the base 1, and the storage tanks 14 correspond to the purification tank 5 and the flocculation tank 61 respectively. The two storage tanks 14 store pH neutralizing liquid and flocculant respectively. The storage tanks 14 are connected to the corresponding purification tank 5 and flocculation tank 61 through the discharge pipe 16. One side of the two storage tanks 14 is equipped with a metering pump 15. The pH neutralizing liquid and flocculant in the two storage tanks 14 can be quantitatively controlled by the corresponding metering pumps 15 and added to the purification tank 5 and the flocculation tank 61.

[0027] When the device is used to purify chlor-alkali chemical wastewater, the wastewater first enters the device through the open end of the pretreatment frame 2, and the water flows evenly through the inner inlet mesh grille 3 under the guidance of the baffle 4. At this time, the electric roller 31 drives the grille to rotate continuously, and the suspended matter and larger particles in the wastewater are dynamically filtered and retained on the grille surface, and the filtered wastewater passes through the grille into the bottom channel of the pretreatment frame 2. When the grille rotates to the top, the air pump 8 sprays high-pressure airflow to the grille surface through the nozzle 10, flushing the attached impurities into the guide frame 11, and then the waste residue is introduced into the collection frame 12 with the water flow for centralized treatment. This process can effectively avoid the problem of easy clogging of traditional static filter screens. The pretreated wastewater enters the purification tank 5 through the guide trough, and the pH sensor 13 arranged in the tank monitors the acidity and alkalinity of the wastewater in real time. When it is detected that the pH value deviates from the set range, the pH neutralizing liquid (such as acid or alkali solution) in the storage tank 14 is accurately added to the purification tank 5 through the metering pump 15. After the waste liquid and the pH neutralizing liquid are fully mixed, the pH value of the wastewater is adjusted to the neutral range, and then the wastewater neutralized in the purification tank 5 is pumped into the flocculation tank 61 by the submersible pump 71. At this time, the flocculant (such as polyaluminum chloride or polyacrylamide) in another group of storage tanks 14 is quantitatively injected into the flocculation tank 61 through the metering pump 15, and combined with the metal ions and colloidal substances in the wastewater to form flocs. The relatively clear liquid at the top of the flocculation tank 61 that completes the flocculation reaction is transported to the sedimentation tank 62 through the liquid pump 72. Under the physical interception effect of multiple groups of inclined plates 7 in the tank, the water flow speed is slowed down, and the floccules gradually settle to the bottom to form a sludge layer. The dense arrangement of the inclined plates 7 greatly increases the effective sedimentation area and improves the solid-liquid separation efficiency, thereby completing the efficient removal of organic pollutants, heavy metal ions and suspended matter in the chlor-alkali wastewater, and finally achieving standard discharge or recycling.

[0028] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A chlor-alkali chemical wastewater purification treatment device, comprising a base (1) and a pretreatment frame (2), wherein the pretreatment frame (2) is fixedly mounted on the base (1), and the pretreatment frame (2) is a guide groove frame with an opening on one side; Its characteristics are: It also comprises an inner inlet mesh grille (3), a baffle (4), a purification tank (5), an isolation plate (6), a flocculation tank (61), a sedimentation tank (62), a submersible pump (71) and a liquid pump (72); a mounting frame (21) is fixedly installed across the middle of the pretreatment frame (2); a motorized roller (31) is mounted on the top of the mounting frame (21); a guide roller (32) is rotatably installed on the bottom of the pretreatment frame (2) where the mounting frame (21) is located; the inner inlet mesh grille (3) is wound between the motorized roller (31) and the guide roller (32); a baffle (4) is symmetrically fixed on one side of the water-facing surface of the inner inlet mesh grille (3) in the pretreatment frame (2); The baffle plate (4) is used to guide water flow to pass through the inner inlet mesh grille (3); a purification tank (5) is arranged at the outlet of the pretreatment frame (2); a flocculation tank (61) is arranged on one side of the purification tank (5) through an isolation plate (6); a submersible pump (71) is installed at the bottom of the purification tank (5); the submersible pump (71) is connected to the flocculation tank (61) through a pipeline; a sedimentation tank (62) is also separated from the purification tank (5) and the flocculation tank (61) on one side through the isolation plate (6); a liquid pump (72) is installed on the upper part of the flocculation tank (61); the liquid pump (72) is connected to the sedimentation tank (62) through a pipeline.

2. A chlor-alkali chemical wastewater purification treatment device according to claim 1, characterized in that: An air pump (8) is fixedly mounted on the outer frame wall of the pretreatment frame (2); an air outlet of the air pump (8) is connected to the interior of the installation frame (21) via an air pipe (9); a nozzle (10) is mounted at the air outlet of the air pipe (9); the nozzle (10) is located between the installation frame (21) and the inner inlet mesh grille (3); the nozzle (10) is used to spray air to clean impurities filtered out of the inner inlet mesh grille (3).

3. A chlor-alkali chemical wastewater purification treatment device according to claim 2, characterized in that: A guide frame (11) is fixedly mounted on the mounting frame (21), the guide frame (11) being located between the inner inlet mesh grilles (3), the height of the guide frame (11) being lower than the cleaning height of the water spray, and a collection frame (12) being arranged on the base (1), the drainage end of the guide frame (11) leading to the collection frame (12).

4. A chlor-alkali chemical wastewater purification treatment device according to claim 3, characterized in that: It also includes an inclined plate (7). The sedimentation tank (62) is provided with an inclined plate (7). A plurality of the inclined plates (7) are provided and are arranged at equal intervals on the inner wall of the sedimentation tank (62).

5. A chlor-alkali chemical wastewater purification treatment device according to claim 4, characterized in that: It also includes a pH value sensor (13), and the purification pool (5) is equipped with the pH value sensor (13).

6. A chlor-alkali chemical wastewater purification treatment device according to claim 5, characterized in that: Two storage tanks (14) are also installed on the base (1), and the storage tanks (14) correspond to the purification tank (5) and the flocculation tank (61) respectively. The two storage tanks (14) store pH neutralizing liquid and flocculant respectively. The storage tanks (14) are connected to the corresponding purification tank (5) and flocculation tank (61) through discharge pipes (16). One side of the two storage tanks (14) is equipped with a metering pump (15).

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