A kind of quantitative adding equipment of neutralizing agent for sewage treatment

Abstract

The invention relates to the technical field of adding neutralizers for sewage treatment, and discloses a quantitative adding device for neutralizers for sewage treatment, comprising a mixing barrel, wherein a top cover is arranged on the top of the mixing barrel, a pre-adding mechanism is arranged on one side of the top cover, and an input end of the pre-adding mechanism is connected with an input end of sewage; the quantitative adding device for neutralizers for sewage treatment is provided with a pre-adding mechanism, and the sewage inside a transition bin is intercepted by the cooperation of a second electromagnetic valve and a gate plate, and the pH value inside the transition bin is detected by a second pH monitor, so that the sewage inside the transition bin is pre-analyzed and prepared in advance by a quantitative pump, and a quantitative neutralizer is added while adding sewage to the mixing barrel in cooperation with a control mechanism, and a secondary pre-analysis and preparation is performed when the sewage undergoes a neutralization reaction, thereby improving the sewage treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of adding a neutralizing agent for sewage treatment, and more specifically, to a device for quantitatively adding a neutralizing agent for sewage treatment. Background Art

[0002] Neutralizers are substances that interact with acids (acid salts) and alkalis (basic salts) to adjust the pH value of the medium. In sewage treatment, the main function of neutralizers is to adjust the pH value of sewage through chemical reactions to make it neutral or close to neutral, thereby neutralizing acidic or alkaline wastewater and reducing harm to the environment. Neutralizers are usually added in a quantitative manner based on the pH value of the sewage.

[0003] Existing adding equipment is usually divided into acid barrels and alkali barrels. The acid and alkali agents inside are extracted by a metering pump and added to the sewage. The existing adding method is real-time addition. In sewage treatment, acid and alkali neutralization takes 2 to 5 minutes. The neutralizer ratio needs to go through detection, analysis, quantitative extraction and other steps, which also takes a certain amount of time, resulting in a long time in the sewage treatment process. At the same time, when the sewage is neutralized, it will also cause precipitation of substances. The precipitated substances will adhere to the position of the inner wall of the treatment barrel, and then with the increase of the number of treatments, the attachments will continue to increase, thereby affecting the subsequent sewage neutralization reaction, and thus technical optimization is needed. Summary of the invention

[0004] The invention provides a device for quantitatively adding a neutralizing agent for sewage treatment, which solves the technical problem in the related art that the quantitative addition of a neutralizing agent for sewage treatment and the long sewage neutralization reaction time lead to reduced sewage treatment efficiency.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A quantitative addition device for a neutralizing agent for sewage treatment, comprising a mixing barrel, a top cover is arranged on the top of the mixing barrel, a pre-addition mechanism is arranged on one side of the top cover, and an input end of the pre-addition mechanism is connected to an input end of sewage;

[0007] The inner wall of the mixing barrel is provided with a guide mechanism, and the interior of the mixing barrel is provided with a cleaning mechanism adapted to the guide mechanism, and the cleaning mechanism is limited by the guide mechanism and is spirally rotated and displaced inside the mixing barrel;

[0008] The outer side of the mixing barrel is provided with a control mechanism which is interconnected with the inside of the mixing barrel, and the control mechanism is affected by the displacement of the cleaning mechanism, thereby controlling the opening and closing of the pre-adding mechanism;

[0009] A monitoring unit is arranged outside the mixing barrel, and a central control unit is arranged at one end of the front side of the mixing barrel. The monitoring unit is electrically connected to the central control unit through a wire.

[0010] As a further optimization scheme of the present invention, the pre-adding mechanism includes a transition bin interconnected with the interior of the top cover, a plurality of groups of metering pumps are evenly distributed on the top of the transition bin, a storage box is arranged on the top of each metering pump, the metering pump is interconnected with the interior of the transition bin, a water inlet pipe is arranged at the input end of the transition bin, a second solenoid valve is arranged at one end of the water inlet pipe close to the transition bin, a second PH monitor extending to the interior of the transition bin is arranged on the outside of the transition bin, the second PH monitor is electrically connected to the central control unit via a wire, a branch pipe is arranged on the outside of each metering pump, and an end of the branch pipe away from the metering pump is commonly connected to a delivery duct interconnected with the interior of the top cover.

[0011] As a further optimization scheme of the present invention, a gate plate is provided at one end of the transition bin near the top cover, and the gate plate is controlled to move by a control mechanism, and cooperates with a second solenoid valve to separate the interior of the transition bin to form a pre-neutralization bin body. When the second solenoid valve and the gate plate are closed, the second pH monitor detects the pH value inside the transition bin and feeds it back to the central control unit for analysis, and the central control unit controls several groups of metering pumps to quantitatively add the neutralizer to the interior of the transition bin.

[0012] As a further optimization scheme of the present invention, the guide mechanism includes a spiral guide groove arranged at the inner wall of the mixing barrel, the middle part of the spiral guide groove is a spiral structure, and the two ends of the spiral guide groove are horizontal arc structures, and the internal rolling limit of the spiral guide groove is provided with a second roller.

[0013] As a further optimization scheme of the present invention, the cleaning mechanism includes a scraper arranged at one end of the central axis of the second roller, one side of the scraper is in contact with the inner wall of the mixing barrel, and the scraper is an arc-shaped structure. The arc-shaped structure of the scraper makes it unable to rotate due to the arc-shaped limiting effect of the inner wall of the mixing barrel when it follows the displacement of the second roller. A first connecting block is provided at the bottom of the scraper away from the inner wall of the mixing barrel, a float is provided on the other side of the first connecting block, a metal block is provided at one end of the back side of the first connecting block, and an electromagnet magnetically adsorbed to the metal block is provided at a position near the top of the spiral guide groove on the top of the inner wall of the mixing barrel.

[0014] As a further optimization scheme of the present invention, an elastic unit is arranged inside the top of the spiral guide groove. When the metal block moves to the position of the top of the spiral guide groove, the electromagnet generates a magnetic attraction force on the metal block, thereby driving the second roller to compress the elastic unit. A buffer unit that is compatible with the second roller is arranged at one end of the bottom of the spiral guide groove, and an anti-corrosion layer is arranged on the outside of the electromagnet.

[0015] As a further optimization scheme of the present invention, the control mechanism includes an installation bin arranged on the outside of the mixing barrel, the top of the installation bin is located directly below the transition bin, the bottom of the mixing barrel is provided with a support base, the bottom of the support base is provided with a guide groove interconnected with the installation bin, the interior of the installation bin is vertically provided with a support vertical rod, the top of the support vertical rod extends to the interior of the transition bin and is interconnected with the bottom of the gate plate, the bottom of the support vertical rod extends to the interior of the guide groove and is provided with a cross bar, the top of the cross bar away from one end of the support vertical rod is provided with a second connecting block, the bottom of the interior of the mixing barrel is provided with a bottom plate, and the edge of the bottom plate is provided with a drainage groove interconnected with the interior of the guide groove.

[0016] As a further optimization scheme of the present invention, a limiting block is provided on one side of the second connecting block and passes through the drainage groove and engages with the top of the bottom plate. A spring connected to the bottom of the guide groove is provided at the bottom of the cross bar. A piston plate that is in contact with the inner wall of the installation bin is provided on the outside of the support vertical bar located inside the installation bin, and a sealing ring is provided on the outside of the piston plate. A drainage pipe is provided at the output end of the guide groove, and a first solenoid valve is provided at one end of the drainage pipe close to the guide groove.

[0017] As a further optimization scheme of the present invention, a displacement hole is provided at the top of the spiral guide groove inside the mixing barrel, and a connecting rod is provided at a position of the supporting vertical rod close to the displacement hole, which passes through the displacement hole to the inside of the mixing barrel. A first roller is provided at one end of the connecting rod located inside the mixing barrel. When the scraper is displaced to the position of the top of the spiral guide groove, the first roller and one end of the back side of the scraper are fitted with each other, and the first roller is rolled and displaced upward under the arc-shaped guiding action of the scraper.

[0018] As a further optimization scheme of the present invention, a driving motor is arranged on the top of the top cover, and a transmission shaft extending to the interior of the mixing barrel is arranged at the output end of the driving motor, and a plurality of groups of stirring blades are evenly distributed on the outside of the transmission shaft. The monitoring unit includes a first PH monitor and a water level monitor. The first PH monitor is used for detecting the pH value of the sewage inside the mixing barrel in real time and feeding it back to the central control unit, and the water level monitor is used for detecting the water level inside the mixing barrel and feeding it back to the central control unit.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention is provided with a pre-addition mechanism, and the sewage inside the transition chamber is intercepted by the cooperation of the second electromagnetic valve and the gate plate, and the pH value inside the transition chamber is detected by the second pH monitor, so that the sewage inside the transition chamber is pre-analyzed and prepared in advance by the quantitative pump, and a quantitative neutralizer is added to the mixing barrel at the same time with the use of the control mechanism, and a secondary pre-analysis and preparation is performed when the sewage is neutralized, thereby improving the sewage treatment efficiency;

[0021] 2. The present invention is provided with a cleaning mechanism, and the guiding mechanism guides the cleaning mechanism so that the cleaning mechanism can move up and down in a spiral inside the mixing barrel. During the movement of the cleaning mechanism, the inner wall of the mixing barrel is cleaned. At the same time, along with the up and down movement of the cleaning structure, a driving force is provided to the control mechanism, so that the control mechanism controls the pre-adding mechanism, thereby realizing structural linkage and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural stereoscopic schematic diagram of the present invention;

[0023] Figure 2 It is a three-dimensional cross-sectional view of the structure of the present invention;

[0024] Figure 3 yes Figure 2 A schematic diagram of the structure at A;

[0025] Figure 4 yes Figure 2 A schematic diagram of the structure at B;

[0026] Figure 5 It is an enlarged schematic diagram of the structure of the cleaning mechanism in the present invention;

[0027] Figure 6 It is an enlarged cross-sectional view of the internal structure of the mixing barrel in the present invention;

[0028] Figure 7 yes Figure 6 A schematic diagram of the structure at position C of FIG.

[0029] Figure 8 It is an enlarged cross-sectional view of the internal structure of the cleaning mechanism and the control mechanism in the present invention;

[0030] Fig. 9 yes Figure 8 A schematic diagram of the structure at D of FIG.

[0031] Fig.10 yes Figure 8 A schematic diagram of the structure at E of FIG.

[0032] Fig.11It is an enlarged schematic diagram of the structure of the control mechanism in the present invention.

[0033] In the figure: 1, mixing barrel; 2, first PH monitor; 3, water level monitor; 4, support base; 5, first solenoid valve; 6, drain pipe; 7, installation chamber; 8, second PH monitor; 9, delivery conduit; 10, water inlet pipe;

[0034] 11. Top cover; 12. Second solenoid valve; 13. Branch pipe; 14. Dosing pump; 15. Storage box; 16. Transition bin; 17. Driving motor; 18. Transmission shaft; 19. Spiral guide groove; 20. Stirring blade;

[0035] 21. Bottom plate; 22. Displacement hole; 23. First roller; 24. Elastic unit; 25. Electromagnet; 26. Drainage trough; 27. First connecting block; 28. Scraper; 29. ​​Float; 30. Second roller;

[0036] 31. Metal block; 32. Buffer unit; 33. Gate; 34. Support vertical rod; 35. Connecting rod; 36. Piston plate; 37. Second connecting block; 38. Guide groove; 39. Spring; 40. Cross bar; 41. Limiting block. DETAILED DESCRIPTION

[0037] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0038] Example 1

[0039] like Figures 1 to 11As shown, a quantitative addition device for neutralizing agent for sewage treatment includes a mixing barrel 1, a top cover 11 is arranged on the top of the mixing barrel 1, a pre-adding mechanism is arranged on one side of the top cover 11, the input end of the pre-adding mechanism is connected with the input end of the sewage, the pre-adding mechanism includes a transition chamber 16 interconnected with the inside of the top cover 11, a plurality of groups of quantitative pumps 14 are evenly distributed on the top of the transition chamber 16, a storage box 15 is arranged on the top of the quantitative pumps 14, the quantitative pumps 14 are connected with the inside of the transition chamber 16, a water inlet pipe 10 is arranged at the input end of the transition chamber 16, a second solenoid valve 12 is arranged at one end of the water inlet pipe 10 close to the transition chamber 16, and a second PH monitoring valve 15 extending to the inside of the transition chamber 16 is arranged on the outer side of the transition chamber 16 The second pH monitor 8 is electrically connected to the central control unit through a wire. The outer side of the metering pump 14 is provided with a branch pipe 13. The end of the branch pipe 13 away from the metering pump 14 is commonly connected with a delivery conduit 9 that is interconnected with the inside of the top cover 11. A gate plate 33 is provided at one end of the transition chamber 16 close to the top cover 11. The gate plate 33 is controlled by the control mechanism to move, and cooperates with the second solenoid valve 12 to partition the inside of the transition chamber 16 to form a pre-neutralization chamber body. When the second solenoid valve 12 and the gate plate 33 are closed, the second pH monitor 8 detects the pH value inside the transition chamber 16 and feeds it back to the central control unit for analysis. The central control unit controls a number of groups of metering pumps 14 to quantitatively add the neutralizer to the inside of the transition chamber 16.

[0040] The inner wall of the mixing barrel 1 is provided with a guide mechanism, which includes a spiral guide groove 19 provided at the inner wall of the mixing barrel 1, the middle part of the spiral guide groove 19 is a spiral structure, and the two ends of the spiral guide groove 19 are horizontal arc structures, and the inner rolling limit of the spiral guide groove 19 is provided with a second roller 30;

[0041] The interior of the mixing barrel 1 is provided with a cleaning mechanism that is compatible with the guide mechanism. The cleaning mechanism is limited by the guide mechanism and is displaced by spiral rotation inside the mixing barrel 1. The cleaning mechanism includes a scraper 28 disposed at one end of the central axis of the second roller 30. One side of the scraper 28 is in contact with the inner wall of the mixing barrel 1, and the scraper 28 is an arc-shaped structure. The arc-shaped structure of the scraper 28 makes it unable to rotate due to the arc-shaped limiting effect of the inner wall of the mixing barrel 1 when it moves with the second roller 30. The bottom of the scraper 28 away from the inner wall of the mixing barrel 1 is provided with a first connecting block 27, and a floating ball is provided on the other side of the first connecting block 27. 29, a metal block 31 is arranged at one end of the back side of the first connecting block 27, an electromagnet 25 magnetically attracted to the metal block 31 is arranged at the top of the inner wall of the mixing barrel 1 near the top of the spiral guide groove 19, an elastic unit 24 is arranged inside the top of the spiral guide groove 19, when the metal block 31 moves to the position of the top of the spiral guide groove 19, the electromagnet 25 generates a magnetic attraction force on the metal block 31, thereby driving the second roller 30 to compress the elastic unit 24, a buffer unit 32 adapted to the second roller 30 is arranged at one end of the bottom of the spiral guide groove 19, and an anti-corrosion layer is arranged on the outer side of the electromagnet 25;

[0042] The outside of the mixing barrel 1 is provided with a control mechanism that is interconnected with the inside of the mixing barrel 1. The control mechanism includes an installation bin 7 that is arranged on the outside of the mixing barrel 1. The top of the installation bin 7 is located directly below the transition bin 16. The bottom of the mixing barrel 1 is provided with a support base 4. The bottom of the support base 4 is provided with a guide groove 38 that is interconnected with the installation bin 7. A support vertical rod 34 is vertically arranged inside the installation bin 7. The top of the support vertical rod 34 extends to the inside of the transition bin 16 and is connected to the bottom of the gate plate 33. The bottom of the support vertical rod 34 extends to the inside of the guide groove 38 and is provided with a cross bar 40. The top of the cross bar 40 is away from the end of the support vertical rod 34. A second connecting block 37 is provided. The bottom of the mixing barrel 1 is provided with A bottom plate 21 is provided, and a drainage groove 26 communicating with the inside of the guide groove 38 is provided at the edge of the bottom plate 21. A limiting block 41 passing through the drainage groove 26 and engaging with the top of the bottom plate 21 is provided on one side of the second connecting block 37. A spring 39 connected to the bottom of the guide groove 38 is provided at the bottom of the cross bar 40. A piston plate 36 that fits with the inner wall of the installation bin 7 is provided on the outside of the supporting vertical rod 34 located inside the installation bin 7. A sealing ring is provided on the outside of the piston plate 36. A drainage pipe 6 is provided at the output end of the guide groove 38. A first solenoid valve 5 is provided at one end of the drainage pipe 6 close to the guide groove 38. The control mechanism is affected by the displacement of the cleaning mechanism, thereby controlling the opening and closing of the pre-adding mechanism.

[0043] A monitoring unit is provided outside the mixing barrel 1, and a central control unit is provided at one end of the front of the mixing barrel 1, and the monitoring unit is electrically connected to the central control unit through a wire;

[0044] A displacement hole 22 is provided at the top of the spiral guide groove 19 inside the mixing barrel 1, and a connecting rod 35 is provided at a position of the supporting vertical rod 34 near the displacement hole 22, which penetrates the displacement hole 22 to the inside of the mixing barrel 1. A first roller 23 is provided at one end of the connecting rod 35 located inside the mixing barrel 1. When the scraper 28 is displaced to the position at the top of the spiral guide groove 19, the first roller 23 and one end of the back side of the scraper 28 fit each other, and the first roller 23 rolls upward under the arc-shaped guiding effect of the scraper 28. A driving motor 17 is provided on the top of the top cover 11, and a transmission shaft 18 extending to the inside of the mixing barrel 1 is provided at the output end of the driving motor 17. A plurality of stirring blades 20 are evenly distributed on the outside of the transmission shaft 18. The monitoring unit includes a first PH monitor 2 and a water level monitor 3. The first PH monitor 2 is used to detect the pH value of the sewage inside the mixing barrel 1 in real time and feed it back to the central control unit, and the water level monitor 3 is used to detect the water level inside the mixing barrel 1 and feed it back to the central control unit.

[0045] The use process of the quantitative addition device for neutralizing agent for sewage treatment proposed in this embodiment is as follows: when the device is in use, it is connected to an external sewage source through the water inlet pipe 10, and then the sewage is transported to the inside of the mixing barrel 1, and the neutralized sewage is discharged through the position of the drain pipe 6;

[0046] When the device is used for the first time, sewage is transported to the interior of the transition bin 16 through the water inlet pipe 10, and is added to the interior of the mixing barrel 1 through the transition bin 16. At this time, the drive motor 17 is started to drive the transmission shaft 18 to rotate, thereby driving the stirring blade 20 to rotate, wherein the stirring direction of the stirring blade 20 is consistent with the upward spiral direction of the spiral guide groove 19;

[0047] As the stirring blade 20 stirs the sewage inside the mixing barrel 1, the sewage generates a rotating force, and then the floating ball 29 is driven to follow the displacement through the rotating force of the sewage. As the floating ball 29 is displaced, the scraper 28 at one end of the first connecting block 27 is displaced synchronously, and then the second roller 30 extends the guide displacement of the spiral guide groove 19. As the water level of the sewage continues to rise, the floating ball 29 synchronously drives the second roller 30 to move to the top of the spiral guide groove 19;

[0048] At this time, the electromagnet 25 is energized to have a magnetic attraction force to absorb the metal block 31, thereby driving the second roller 30 to compress the elastic unit 24 to generate a rebound force, and with the displacement of the second roller 30, the back end of the scraper 28 guides the first roller 23, so that the first roller 23 moves upward along the back end of the scraper 28, and the displacement of the first roller 23 drives the supporting vertical rod 34 at one end of the connecting rod 35 to move upward, and the gate plate 33 and the cross bar 40 are respectively driven to move upward through the supporting vertical rod 34;

[0049] The upward displacement of the gate plate 33 cuts off the sewage inputted into the mixing barrel 1 by the transition chamber 16, and cooperates with the second solenoid valve 12 to cut off the sewage transport of the water inlet pipe 10, so that sewage is stored in the transition chamber 16;

[0050] Through the upward displacement of the cross bar 40, the second connecting block 37 is driven to move upward to the inside of the drain trough 26, and the limit block 41 is engaged with the upper edge of the bottom plate 21, so that the cross bar 40 as a whole cannot move downward. At this time, the pH value of the sewage inside the mixing barrel 1 is detected by the first PH monitor 2, and the data is fed back to the central control unit. The central control unit controls the metering pump 14 to extract the corresponding amount of neutralizer, and delivers it to the inside of the mixing barrel 1 through the delivery conduit 9, thereby realizing the first quantitative addition of the neutralizer.

[0051] Example 2

[0052] like Figures 1 to 5 , Figures 9 to 11 As shown, a quantitative addition device for a neutralizing agent for sewage treatment is provided, the outer side of a mixing barrel 1 is provided with a control mechanism that is interconnected with the inside of the mixing barrel 1, the control mechanism includes a mounting chamber 7 that is arranged on the outer side of the mixing barrel 1, the top of the mounting chamber 7 is located directly below the transition chamber 16, the bottom of the mixing barrel 1 is provided with a support base 4, the bottom of the support base 4 is provided with a guide groove 38 that is interconnected with the mounting chamber 7, the interior of the mounting chamber 7 is vertically provided with a support vertical rod 34, the top of the support vertical rod 34 extends to the interior of the transition chamber 16 and is interconnected with the bottom of the gate plate 33, the bottom of the support vertical rod 34 extends to the interior of the guide groove 38 and is provided with a cross bar 40, the top of the cross bar 40 away from one end of the support vertical rod 34 is provided with a second connecting block 37, A bottom plate 21 is provided at the bottom of the interior of the combined barrel 1, and a drainage groove 26 connected to the interior of the guide groove 38 is provided at the edge of the bottom plate 21. A limiting block 41 that passes through the drainage groove 26 and engages with the top of the bottom plate 21 is provided on one side of the second connecting block 37. A spring 39 that is connected to the bottom of the guide groove 38 is provided at the bottom of the cross bar 40. A piston plate 36 that is in contact with the inner wall of the installation bin 7 is provided on the outside of the supporting vertical rod 34 located inside the installation bin 7, and a sealing ring is provided on the outside of the piston plate 36. A drainage pipe 6 is provided at the output end of the guide groove 38, and a first solenoid valve 5 is provided at one end of the drainage pipe 6 close to the guide groove 38. The control mechanism is affected by the displacement of the cleaning mechanism, thereby controlling the opening and closing of the pre-adding mechanism.

[0053] The use process of the neutralizing agent quantitative addition device for sewage treatment proposed in this embodiment is as follows: on the basis of Example 1, sewage is stored inside the transition bin 16, and the pH value of the sewage inside is analyzed by the second pH monitor 8, and the data is fed back to the central control unit, and the central control unit issues a control signal to the quantitative pump 14 in advance, thereby realizing the prefabrication function;

[0054] When the sewage neutralization reaction inside the mixing barrel 1 is finished, the first solenoid valve 5 is opened to discharge the sewage from the drain pipe 6. As the sewage water level inside the mixing barrel 1 continues to drop, when it drops to the position of the water level monitor 3, the water level monitoring data is sent to the central control unit through the water level monitor 3. The central control unit controls the first solenoid valve 5 to close and start the metering pump 14, and disconnects the circuit of the electromagnet 25 at the same time, so that the electromagnet 25 no longer adsorbs the metal block 31, and the second roller 30 is affected by the rebound force of the elastic unit 24, and moves downward in the opposite direction along the spiral guide groove 19. As the second roller 30 moves downward, it drives the scraper 28 to perform spiral scraping on the inner wall of the mixing barrel 1, so that the precipitated substances attached to the inner wall of the mixing barrel 1 are cleaned to the bottom of the mixing barrel 1, thereby realizing the cleaning function of the inner wall of the mixing barrel 1;

[0055] When the second roller 30 moves to the bottom position of the mixing barrel 1 along the spiral guide groove 19, the second roller 30 has a displacement speed due to the guiding effect of the spiral guide groove 19, and at the same time drives the first connecting block 27 to move and generate an impact force on the limit block 41, so that the limit block 41 is released from the engagement state with the bottom plate 21, and the cross bar 40 as a whole is affected by the rebound force of the spring 39, thereby driving the limit block 41 and the installation chamber 7 to move downward as a whole, and further driving the gate plate 33 and the first roller 23 to move downward through the installation chamber 7, and opening the sewage conveying passage inside the transition chamber 16 again through the gate plate 33, so that the sewage enters the interior of the mixing barrel 1 again;

[0056] The second roller 30 is buffered by the buffer unit 32 and then stays at the bottom of the mixing barrel 1. As the sewage level inside the mixing barrel 1 rises again, the mixing blade 20 stirs the sewage, so that the float 29 again moves the second roller 30 upward inside the spiral guide groove 19, thereby repeating the above steps, realizing the triple functions of pre-quantitative configuration of the sewage treatment neutralizer, cleaning the inner wall of the mixing barrel 1, and automatic control of the sewage opening and closing.

[0057] The metering pump 14 receives the signal control from the central control unit in advance, and adds the neutralizer and sewage in the storage tank 15 into the mixing barrel 1 at the same time, which reduces the time of proportioning analysis and improves the efficiency of sewage treatment.

[0058] The specific implementation methods of this embodiment are described above, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms inspired by this embodiment, all of which are within the protection of this embodiment.

Claims

1. A quantitative addition device for a neutralizing agent for sewage treatment, characterized in that: It comprises a mixing barrel (1), a monitoring unit is arranged outside the mixing barrel (1), and a central control unit is arranged at one end of the front of the mixing barrel (1), and the monitoring unit is electrically connected to the central control unit via a wire; The mixing barrel (1) is provided with a top cover (11) on the top, a pre-adding mechanism is provided on one side of the top cover (11), an input end of the pre-adding mechanism is connected to an input end of the sewage, the pre-adding mechanism comprises a transition chamber (16) which is interconnected with the interior of the top cover (11), a plurality of groups of dosing pumps (14) are evenly distributed on the top of the transition chamber (16), a storage box (15) is provided on the top of each of the dosing pumps (14), the dosing pumps (14) are interconnected with the interior of the transition chamber (16), a water inlet pipe (10) is provided at the input end of the transition chamber (16), a second solenoid valve (12) is provided at one end of the water inlet pipe (10) close to the transition chamber (16), a second pH monitor (8) extending into the interior of the transition chamber (16) is provided on the outside of the transition chamber (16), the second pH monitor (8) is electrically connected to the central control unit via a wire, and a branch pipe (13) is provided on the outside of each of the dosing pumps (14); The end of the branch pipe (13) away from the metering pump (14) is in common communication with a delivery conduit (9) which is in communication with the interior of the top cover (11); a gate plate (33) is provided at the end of the transition chamber (16) close to the top cover (11); the gate plate (33) is controlled to move by a control mechanism and cooperates with the second electromagnetic valve (12) to isolate the interior of the transition chamber (16) to form a pre-neutralization chamber body; when the second electromagnetic valve (12) and the gate plate (33) are closed, the second pH monitor (8) detects the pH value inside the transition chamber (16) and feeds it back to the central control unit for analysis; and the central control unit controls a plurality of groups of metering pumps (14) to quantitatively add a neutralizing agent into the interior of the transition chamber (16); The inner wall of the mixing barrel (1) is provided with a guide mechanism, the guide mechanism comprising a spiral guide groove (19) provided at the inner wall of the mixing barrel (1), the middle portion of the spiral guide groove (19) being a spiral structure, and both ends of the spiral guide groove (19) being horizontal arc structures, and the inner rolling limit of the spiral guide groove (19) being provided with a second roller (30), A cleaning mechanism that is compatible with the guide mechanism is disposed inside the mixing barrel (1). The cleaning mechanism is limited by the guide mechanism to be spirally rotated and displaced inside the mixing barrel (1). The cleaning mechanism comprises a scraper (28) disposed at one end of the central axis of the second roller (30). One side of the scraper (28) is in contact with the inner wall of the mixing barrel (1). The scraper (28) is an arc-shaped structure. The arc-shaped structure of the scraper (28) prevents the scraper (28) from rotating due to the arc-shaped limiting effect of the inner wall of the mixing barrel (1) when the scraper follows the displacement of the second roller (30). A first connecting block (27) is disposed at the bottom of the scraper (28) on the side away from the inner wall of the mixing barrel (1). A floating ball (29) is disposed on the other side of the first connecting block (27). A metal block (31) is disposed at one end of the back side of the first connecting block (27). An electromagnet (25) that is magnetically attracted to the metal block (31) is disposed at a position near the top of the spiral guide groove (19) at the top of the inner wall of the mixing barrel (1). The outside of the mixing barrel (1) is provided with a control mechanism that is interconnected with the inside of the mixing barrel (1), and the control mechanism is affected by the displacement of the cleaning mechanism, thereby controlling the opening and closing of the pre-adding mechanism. The control mechanism comprises a mounting chamber (7) arranged on the outside of the mixing barrel (1), the top of the mounting chamber (7) is located directly below the transition chamber (16), the bottom of the mixing barrel (1) is provided with a support base (4), the bottom of the support base (4) is provided with a guide groove (38) that is interconnected with the mounting chamber (7), and the interior of the mounting chamber (7) is vertically connected to the intermediate chamber (16). A support vertical rod (34) is provided, the top of the support vertical rod (34) extends to the interior of the transition chamber (16) and is connected to the bottom of the gate plate (33), the bottom of the support vertical rod (34) extends to the interior of the guide groove (38) and is provided with a cross rod (40), a second connecting block (37) is provided at the top of the cross rod (40) at one end away from the support vertical rod (34), a bottom plate (21) is provided at the bottom of the interior of the mixing barrel (1), and a drainage groove (26) is provided at the edge of the bottom plate (21) and is connected to the interior of the guide groove (38); A displacement hole (22) is provided at the top of the spiral guide groove (19) inside the mixing barrel (1), and a connecting rod (35) is provided at a position of the supporting vertical rod (34) close to the displacement hole (22) and passes through the displacement hole (22) to the inside of the mixing barrel (1). A first roller (23) is provided at one end of the connecting rod (35) located inside the mixing barrel (1). When the scraper (28) is displaced to the position of the top of the spiral guide groove (19), the first roller (23) and one end of the back side of the scraper (28) are in contact with each other, and the first roller (23) is rolled and displaced upwards under the arc-shaped guiding action of the scraper (28).

2. A device for quantitatively adding a neutralizing agent for sewage treatment according to claim 1, characterized in that: An elastic unit (24) is arranged inside the top of the spiral guide groove (19); when the metal block (31) moves to the position of the top of the spiral guide groove (19), the electromagnet (25) generates a magnetic attraction force on the metal block (31), thereby driving the second roller (30) to compress the elastic unit (24); a buffer unit (32) adapted to the second roller (30) is arranged at one end of the bottom of the spiral guide groove (19); and an anti-corrosion layer is arranged on the outer side of the electromagnet (25).

3. A device for quantitatively adding a neutralizing agent for sewage treatment according to claim 2, characterized in that: A limiting block (41) is provided on one side of the second connecting block (37) and penetrates the drainage groove (26) and engages with the top of the bottom plate (21); a spring (39) is provided at the bottom of the cross bar (40) and is connected to the bottom of the guide groove (38); a piston plate (36) is provided on the outside of the support vertical bar (34) located inside the installation bin (7) and is in contact with the inner wall of the installation bin (7); a sealing ring is provided on the outside of the piston plate (36); a drainage pipe (6) is provided at the output end of the guide groove (38); and a first solenoid valve (5) is provided at one end of the drainage pipe (6) close to the guide groove (38).

4. A device for quantitatively adding a neutralizing agent for sewage treatment according to claim 3, characterized in that: A driving motor (17) is arranged on the top of the top cover (11); a transmission shaft (18) extending into the interior of the mixing barrel (1) is arranged at the output end of the driving motor (17); a plurality of groups of stirring blades (20) are evenly distributed on the outer side of the transmission shaft (18); the monitoring unit comprises a first pH monitor (2) and a water level monitor (3); the first pH monitor (2) is used to monitor the pH value of sewage in the mixing barrel (1) in real time and to feed back the pH value to the central control unit; the water level monitor (3) is used to detect the water level in the mixing barrel (1) and to feed back the pH value to the central control unit.

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