Device for neutralizing residual water with sulfuric acid

Abstract

The invention discloses a sulfuric acid residual water neutralization device, and relates to the technical field of sewage treatment. A sulfuric acid residual water neutralization device comprises a base and further comprises a transversely-arranged barrel body rotationally installed on the base, a feeding port is formed in the edge of the shaft end of the barrel body, and a driving part for driving the barrel body to rotate is arranged on the base; the transverse shaft is transversely arranged in the barrel body, the outer wall of the transverse shaft is connected with a stirring rod, the outer wall of the stirring rod is fixedly connected with a branch rod, the tail end of the stirring rod is connected with an elastic scraping plate, the outer wall of the barrel body is provided with a driving source for driving the transverse shaft to rotate, and the transverse shaft is provided with a telescopic part for driving the stirring rod to stretch out and draw back along the axis; according to the invention, the neutralization efficiency of sulfuric acid is higher, the lime and calcium sulfate precipitate are not easy to precipitate, and the lime is not easy to cake.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a device for neutralizing residual water with sulfuric acid. Background Art

[0002] In industrial wastewater treatment, some wastewater (such as mine drainage, electroplating wastewater, or chemical wastewater) often contains strong acids such as sulfuric acid. Direct discharge can severely pollute the environment and corrode pipelines. Therefore, neutralization treatment equipment is required to adjust the wastewater's pH to a neutral pH of 6-9. Lime is the most commonly used neutralizing agent due to its low cost, high reaction efficiency, and ability to simultaneously precipitate heavy metals. Lime converts to calcium hydroxide, which reacts with sulfuric acid to produce calcium sulfate precipitate and water.

[0003] When neutralizing wastewater containing sulfuric acid, lime tends to settle at the bottom of the container together with the produced calcium sulfate precipitate, and some of the lime and calcium sulfate precipitate will adhere to the inner wall of the container. At the same time, some of the lime will clump, which will affect the efficiency of the neutralization treatment of the wastewater on the one hand, and make the inner wall of the container prone to scaling on the other hand. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a sulfuric acid neutralization device that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: A device for neutralizing residual water with sulfuric acid includes a base and also includes: a transversely arranged barrel body, which is rotatably mounted on the base, wherein a feed port is provided at the axial end edge of the barrel body, and the base is provided with a driving part for driving the barrel body to rotate; a transverse axis arranged transversely in the barrel body, the outer wall of the transverse axis is connected to a stirring rod, the outer wall of the stirring rod is fixedly connected to a branch rod, the end of the stirring rod is connected to an elastic scraper, the outer wall of the barrel body is provided with a driving source for driving the transverse axis to rotate, and the transverse axis is provided with a telescopic part for driving the stirring rod to extend and retract along the axis.

[0006] Preferably, the driving part includes a first motor fixedly mounted on the base, a first gear fixedly mounted on the output shaft of the first motor, and a ring gear meshing with the first gear fixedly mounted on the outer wall of the barrel.

[0007] Preferably, the driving source includes a second motor fixedly mounted on the outer wall of the barrel body, a second gear fixedly mounted on the output shaft of the second motor, a transmission gear rotatably mounted on the outer wall of the barrel body that is meshed with the second gear, one end of the horizontal axis passes through the outer wall of the barrel body and is fixedly mounted with a third gear, and the third gear is meshed with the transmission gear.

[0008] Furthermore, the telescopic part includes a sleeve fixedly connected to the outer wall of the horizontal axis, a first piston plate is slidably installed in the sleeve, one end of the stirring rod is fixedly connected to the first piston plate, a cavity connected to the sleeve is provided in the horizontal axis, a return spring is installed between the first piston plate and the end of the sleeve, an inner cavity penetrating the first piston plate is provided in the stirring rod, a fine hole penetrating to the end of the branch rod is provided in the inner cavity, and an air supply part for indirectly supplying air to the cavity is provided on the barrel body.

[0009] Furthermore, the air supply part includes a cylinder body fixedly connected to the outer wall of the barrel body, a second piston plate is slidably installed in the cylinder body, the end of the horizontal axis is rotatably connected to a U-shaped tube connected to the cavity, the other end of the U-shaped tube passes through the second piston plate and is fixedly connected to the second piston plate; both ends of the cylinder body are fixedly connected to an intake pipe, two exhaust pipes connected to the two ends of the cylinder body are fixedly connected to the U-shaped tube, and one-way valves are fixedly installed in the exhaust pipe and the intake pipe, the middle outer wall of the cylinder body is provided with a groove, and the outer wall of the barrel body is provided with a reciprocating part that drives the second piston plate to move back and forth, and the cross-sectional area of ​​the intake pipe and the exhaust pipe is larger than the total cross-sectional area of ​​all pores.

[0010] Furthermore, the reciprocating part includes a reciprocating screw rotatably connected to the outer wall of the barrel body, one end of the reciprocating screw is connected to a transmission gear, and the length of the transmission gear is the same as the length of the reciprocating screw, and a reciprocating slide is installed on the outer wall of the reciprocating screw, and one side of the reciprocating slide is rotatably sleeved on the outer wall of the horizontal axis.

[0011] Preferably, a support plate is fixedly connected to the base, an exhaust pipe is fixedly connected to the support plate, and one end of the exhaust pipe extends to the inner top of the barrel body.

[0012] Furthermore, the outer wall of the barrel body is fixedly connected to a metal ring electrically connected to the input end of the second motor, and the base is fixedly connected to an elastic sheet, one end of the elastic sheet is elastically pressed against the outer wall of the metal ring, and the other end of the elastic sheet is fixedly connected to a wire.

[0013] Furthermore, a protective cover is fixedly connected to the outer wall of the barrel shaft end, and the second motor, reciprocating screw and cylinder body are all located in the protective cover.

[0014] Furthermore, the outer wall of the protective cover is provided with a ventilation slot, and a filter plate is installed in the ventilation slot.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: 1. The present invention drives the barrel to rotate by the first motor, and the barrel causes the wastewater and lime inside to tumble, thereby making the sulfuric acid neutralization efficiency higher, and the lime and calcium sulfate precipitate are not easy to precipitate, and the lime is not easy to clump.

[0016] 2. The present invention drives the reciprocating slide plate to slide back and forth through the reciprocating screw, and the horizontal axis drives the stirring rod and the branch rod to move back and forth synchronously, so that the stirring rod and the branch rod can reciprocate along the axis of the horizontal axis while revolving around the axis of the horizontal axis, thereby significantly improving the stirring area of ​​the stirring rod and the branch rod, thereby improving the mixing efficiency of the wastewater and lime, and significantly improving the neutralization efficiency of sulfuric acid in the wastewater.

[0017] 3. The present invention drives the second piston plate to slide back and forth in the cylinder body through the U-shaped tube. The air in the cylinder body will eventually be discharged into the barrel body from the end of the fine hole, thereby aerating the wastewater in the barrel body and further improving the neutralization efficiency of sulfuric acid. Since the branch rod will move back and forth along the horizontal axis, the branch rod can spray the discharged air more evenly into the barrel body, making the aeration effect more significant.

[0018] 4. The present invention also enables the stirring rod to reciprocate and extend in the sleeve through the reciprocating horizontal axis, so that the branch rod can not only reciprocate along the axis of the horizontal axis, but also reciprocate in a direction perpendicular to the axis of the horizontal axis, which can further enhance the effect of the branch rod in stirring the wastewater and lime, and make the sulfuric acid neutralization effect higher. The reciprocating and extending branch rod can further enhance the exhaust range of the fine pores, thereby improving the aeration effect of the wastewater and indirectly enhancing the sulfuric acid neutralization effect.

[0019] 5. The present invention uses a reciprocating and telescopic stirring rod to cause the elastic scraper to indirectly press against or move away from the inner wall of the barrel. When the elastic scraper presses against the inner wall of the barrel, the elastic scraper following the stirring rod in the barrel can scrape out part of the sediment, lime and agglomerated lime on the inner wall of the barrel, thereby keeping the inner wall of the barrel clean and ensuring the efficiency of neutralization of sulfuric acid in the wastewater. On the other hand, the elastic scraper with gradually decreasing inclination angle and sliding around the inner wall of the barrel can also crush the agglomerated lime, so that the agglomerated lime is quickly dissolved in the wastewater, rather than simply scraped off from the inner wall of the barrel.

[0020] 6. The present invention moves the elastic scraper away from the inner wall of the barrel, and the elastic scraper stirred in the wastewater is flushed by the wastewater, so that the sediment and lime adhered to the elastic scraper can be flushed by the wastewater. On the one hand, part of the scraped sediment and lime are mixed into the wastewater again, and on the other hand, the elastic scraper can maintain good function.

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the attached figure: Figure 1 Schematic diagram of the three-dimensional structure of a sulfuric acid neutralization residual water device proposed by the present invention Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure of a sulfuric acid neutralization residual water device proposed by the present invention Figure 2 ; Figure 3 This is a schematic diagram of the cross-sectional structure of a sulfuric acid neutralization residual water device proposed by the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the cross-sectional structure of a sulfuric acid neutralization residual water device proposed by the present invention. Figure 2 ; Figure 5 This is a partial structural diagram of a sulfuric acid neutralization residual water device proposed by the present invention; Figure 6 This is a schematic diagram of the stirring rod structure of a sulfuric acid neutralization residual water device proposed by the present invention; Figure 7 This is a schematic diagram of the cylinder structure of a sulfuric acid neutralization residual water device proposed by the present invention; Figure 8 A sulfuric acid neutralization residual water device proposed by the present invention Figure 5 Schematic diagram of the structure of part A.

[0023] In the figure: 1. base; 2. barrel; 3. feed port; 4. first motor; 5. first gear; 6. ring gear; 7. horizontal axis; 8. stirring rod; 9. branch rod; 10. second motor; 11. second gear; 12. transmission gear; 13. third gear; 14. reciprocating screw; 15. reciprocating slide; 16. exhaust pipe; 17. cavity; 18. sleeve; 19. first piston plate; 20. return spring; 21. inner cavity; 22. fine hole; 23. cylinder; 24. second piston plate; 25. U-shaped tube; 26. exhaust pipe; 27. intake pipe; 28. elastic scraper; 29. ​​slot; 30. support plate; 31. protective cover; 32. ventilation slot; 33. filter plate; 34. metal ring; 35. elastic sheet; 36. wire. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0025] Example 1: Reference Figures 1-8, a sulfuric acid neutralization residual water device, including a base 1 for supporting the entire device, and also including: a horizontally arranged cylindrical barrel body 2, rotatably mounted on the base 1, wherein the axial end edge of the barrel body 2 is provided with a feed port 3, and a retractable electric gate is also installed on the feed port 3, the electric gate can block or open the feed port 3, and a driving part for driving the barrel body 2 to rotate is provided on the base 1, and the driving part includes a first motor 4 fixedly mounted on the base 1, a first gear 5 is fixedly mounted on the output shaft of the first motor 4, and a ring gear 6 meshing with the first gear 5 is fixedly mounted on the outer wall of the barrel body 2; a horizontal shaft 7 is horizontally arranged in the barrel body 2, and the outer wall of the horizontal shaft 7 is connected to a stirring rod 8, and the outer wall of the stirring rod 8 It is fixedly connected with a branch rod 9, and the end of the stirring rod 8 is connected with an elastic scraper 28. The elastic scraper 28 is elastic and inclined to the end of the stirring rod 8 with an inclination angle of 5°-30°. The outer wall of the barrel body 2 is provided with a driving source for driving the horizontal shaft 7 to rotate, and the driving source includes a second motor 10 fixedly mounted on the outer wall of the barrel body 2. A second gear 11 is fixedly mounted on the output shaft of the second motor 10. A transmission gear 12 meshing with the second gear 11 is rotatably mounted on the outer wall of the barrel body 2. One end of the horizontal shaft 7 passes through the outer wall of the barrel body 2 and is fixedly mounted with a third gear 13. The third gear 13 is meshed with the transmission gear 12. A telescopic portion for driving the stirring rod 8 to extend and retract along the axis is provided on the horizontal shaft 7.

[0026] Specifically, wastewater containing sulfuric acid and lime are put into the barrel body 2 from the feed port 3, and then the entire device is started. The first motor 4 will drive the ring gear 6 to rotate through the first gear 5, and the ring gear 6 will drive the barrel body 2 to rotate. The barrel body 2 will cause the wastewater and lime inside to tumble, thereby making the sulfuric acid neutralization efficiency higher, and the lime and calcium sulfate precipitate will not easily precipitate, and the lime will not easily agglomerate; the second motor 10 will drive the transmission gear 12 to rotate through the second gear 11, and the transmission gear 12 will drive the third gear 13 to rotate, and the third gear 13 will drive the horizontal shaft 7 to rotate, and the horizontal shaft 7 will drive the stirring rod 8 and the branch rod 9 to perform circumferential stirring in the barrel body 2, thereby completing the mixing of the wastewater and lime, so that the sulfuric acid in the wastewater is neutralized by the lime, and the telescopic part will drive the stirring rod 8 to reciprocate along its axial direction, thereby driving the branch rod 9 to move synchronously, and the stirring area of ​​the branch rod 9 will be further increased, which indirectly improves the effect of sulfuric acid neutralization in the wastewater.

[0027] The outer wall of the barrel body 2 is fixedly connected to a metal ring 34 electrically connected to the input end of the second motor 10. The number of metal rings 34 depends on the number of power supply lines required by the second motor 10. For example, two-phase power supply requires two metal rings 34. An elastic sheet 35 is fixedly connected to the base 1. One end of the elastic sheet 35 elastically presses on the outer wall of the metal ring 34, and the other end of the elastic sheet 35 is fixedly connected to a wire 36.

[0028] When in use, the end of the wire 36 is connected to a power source. The wire 36 can transfer electricity to the metal ring 34 through the elastic sheet 35, and the metal ring 34 can transfer electricity to the second motor 10. When the barrel body 2 rotates, the elastic sheet 35 can slide on the metal ring 34 and remain connected, so that the continuously rotating second motor 10 can be powered.

[0029] Example 2: Reference Figure 3-Figure 6 as well as Figure 8 , a sulfuric acid neutralization residual water device, which is basically the same as Example 1, further comprising: The above-mentioned telescopic part includes a sleeve 18 fixedly connected to the outer wall of the horizontal axis 7, and a first piston plate 19 is slidably installed in the sleeve 18. One end of the stirring rod 8 is fixedly connected to the first piston plate 19, and a sealing ring is installed on the outer wall of the first piston plate 19. A cavity 17 connected to the sleeve 18 is provided in the horizontal axis 7, and a return spring 20 is installed between the end of the first piston plate 19 and the sleeve 18. An inner cavity 21 passing through the first piston plate 19 is provided in the stirring rod 8, and a fine hole 22 passing through the end of the branch rod 9 is provided in the inner cavity 21. An air supply part for indirectly supplying air to the cavity 17 is provided on the barrel body 2.

[0030] Specifically, when in use, the air supply part can blow air indirectly into the cavity 17. When the air supply part supplies air, the air will enter the cavity 17, the sleeve 18 and the inner cavity 21 in sequence, and will eventually be discharged into the barrel body 2 from the end of the fine hole 22, so that the wastewater in the barrel body 2 is aerated, thereby further improving the neutralization efficiency of sulfuric acid. Since the air supply part discharges more gas, the air entering the sleeve 18 will not be discharged in time, so it will push the first piston plate 19 to slide in the direction away from the horizontal axis 7, thereby driving the stirring rod 8 to slide in the direction away from the horizontal axis 7, and the stirring rod 8 will drive the branch The rod 9 slides in the direction away from the horizontal axis 7. When the air supply part stops supplying air, the return spring 20 will drive the first piston plate 19 to move in the opposite direction and return to its original position, so that the excess air in the sleeve 18 is gradually emptied, and the positions of the stirring rod 8 and the branch rod 9 will also return to their original positions. The continuously rotating horizontal axis 7 will also make the stirring rod 8 reciprocate and extend in the sleeve 18, which can further improve the effect of the branch rod 9 in stirring the wastewater and lime, and make the sulfuric acid neutralization effect higher. The reciprocating and extending branch rod 9 will further improve the exhaust range of the fine hole 22, thereby making the wastewater aeration effect better, and indirectly improving the sulfuric acid neutralization effect.

[0031] When the stirring rod 8 is away from the horizontal axis 7, the stirring rod 8 will drive the elastic scraper 28 to move synchronously. At this time, the elastic scraper 28 will be tilted and elastically pressed against the inner wall of the barrel body 2. The farther the stirring rod 8 is from the horizontal axis 7, the greater the pressure of the elastic scraper 28 on the inner wall of the barrel body 2, and the inclination angle of the elastic scraper 28 to the inner wall of the barrel body 2 will be smaller. When the stirring rod 8 moves back and forth to reset, the elastic scraper 28 will gradually reduce the pressure on the inner wall of the barrel body 2 and eventually move away from the inner wall of the barrel body 2. Therefore, the reciprocating and telescopic stirring rod 8 will cause the elastic scraper 28 to indirectly press or move away from the inner wall of the barrel body 2. When the elastic scraper 28 is pressed against the inner wall of the barrel body 2, the elastic scraper 28 stirred by the stirring rod 8 in the barrel body 2 can scrape out part of the sediment, lime and agglomerated lime on the inner wall of the barrel body 2, that is, the barrel body 2 The inner wall remains clean and the efficiency of neutralization of sulfuric acid in the wastewater is guaranteed. On the other hand, the elastic scraper 28 with gradually decreasing inclination angle and sliding around the inner wall of the barrel body 2 will also crush the agglomerated lime, so that the agglomerated lime is quickly dissolved in the wastewater, rather than simply scraped off from the inner wall of the barrel body 2. The reciprocating horizontal axis 7 will cause the elastic scraper 28 to reciprocate on the inner wall of the barrel body 2, thereby further realizing the scraping area and crushing area of ​​the elastic scraper 28. After the elastic scraper 28 is away from the inner wall of the barrel body 2, the elastic scraper 28 stirred in the wastewater will be flushed by the wastewater, so that the sediment and lime adhered to the elastic scraper 28 can be flushed by the wastewater. On the one hand, some of the scraped sediment and lime are mixed into the wastewater again, and on the other hand, the elastic scraper 28 can maintain good function.

[0032] The base 1 is fixedly connected to a support plate 30 , and the support plate 30 is fixedly connected to an exhaust pipe 16 . One end of the exhaust pipe 16 extends to the inner top of the barrel body 2 . When the gas in the barrel body 2 gradually increases, the excess gas can be discharged from the barrel body 2 through the exhaust pipe 16 .

[0033] Example 3: Reference Figure 3 、 Figure 5 as well as Figure 7 , a sulfuric acid neutralization residual water device, which is basically the same as Example 2, further comprising: The above-mentioned air supply part includes a cylinder body 23 fixedly connected to the outer wall of the barrel body 2, and a second piston plate 24 is slidably installed in the cylinder body 23. The end of the horizontal axis 7 is rotatably connected to a U-shaped tube 25 connected to the cavity 17. The other end of the U-shaped tube 25 passes through the second piston plate 24 and is fixedly connected to the second piston plate 24; both ends of the cylinder body 23 are fixedly connected to an air intake pipe 27, and two exhaust pipes 26 connected to the two ends of the cylinder body 23 are fixedly connected to the U-shaped tube 25. A one-way valve is fixedly installed in the exhaust pipe 26 and the air intake pipe 27. A slot 29 is provided on the middle outer wall of the cylinder body 23, and a reciprocating part is provided on the outer wall of the barrel body 2 for driving the second piston plate 24 to move back and forth. The cross-sectional area of ​​the air intake pipe 27 and the exhaust pipe 26 is larger than the total cross-sectional area of ​​all the pores 22.

[0034] Specifically, the reciprocating portion can drive the second piston plate 24 to move back and forth in the cylinder 23. When the second piston plate 24 moves away from the groove 29 and approaches the two ends of the cylinder 23, the second piston plate 24 will compress the air in the two ends of the cylinder 23. The air in the two ends of the cylinder 23 will enter the U-shaped tube 25 through the exhaust pipe 26, and then enter the cavity 17, the sleeve 18 and the inner cavity 21 in turn. Since the cross-sectional area of ​​all the pores 22 is smaller than the cross-sectional area of ​​the exhaust pipe 26, the air in the sleeve 18 will not be discharged in time. , which will push the first piston plate 19 to slide in the direction away from the horizontal axis 7, thereby driving the stirring rod 8 to slide in the direction away from the horizontal axis 7, and the stirring rod 8 will drive the branch rod 9 to slide in the direction away from the horizontal axis 7. When the second piston plate 24 moves toward the middle of the cylinder body 23, negative pressure will be generated inside one end of the cylinder body 23, and external air will be sucked in through the air intake pipe 27. When the second piston plate 24 is located in the middle of the cylinder body 23, due to the setting of the slot 29, no exhaust or intake will occur at both ends of the cylinder body 23.

[0035] A protective cover 31 is fixedly connected to the outer wall of the axial end of the barrel body 2. The second motor 10, the reciprocating screw 14 and the cylinder body 23 are all located in the protective cover 31. The outer wall of the protective cover 31 is provided with a ventilation groove 32. A filter plate 33 is installed in the ventilation groove 32. The protective cover 31 can effectively isolate and protect the second motor 10, the reciprocating screw 14 and the cylinder body 23, and the ventilation groove 32 facilitates the cylinder body 23 to absorb air through the intake pipe 27, and the filter plate 33 can reduce the dust from entering the intake pipe 27.

[0036] Example 4: Reference Figure 3 、 Figure 5 as well as Figure 7 , a sulfuric acid neutralization residual water device, which is basically the same as Example 3, further comprising: The above-mentioned reciprocating part includes a reciprocating screw 14 rotatably connected to the outer wall of the barrel body 2, one end of the reciprocating screw 14 is connected to the transmission gear 12, and the length of the transmission gear 12 is the same as the length of the reciprocating screw 14, so that the third gear 13 can also slide back and forth along the outer wall of the transmission gear 12, and a reciprocating slide 15 is installed on the outer wall of the reciprocating screw 14, and one side of the reciprocating slide 15 is rotatably sleeved on the outer wall of the horizontal shaft 7.

[0037] Specifically, when the transmission gear 12 rotates, the transmission gear 12 will also drive the reciprocating screw 14 to rotate, and the reciprocating screw 14 will drive the reciprocating slide 15 to slide back and forth, and the reciprocating slide 15 will drive the horizontal axis 7 to move back and forth, and the horizontal axis 7 will drive the stirring rod 8 and the branch rod 9 to move back and forth synchronously, so that the stirring rod 8 and the branch rod 9 can reciprocate along the axis of the horizontal axis 7 while revolving around the axis of the horizontal axis 7, thereby significantly improving the stirring area of ​​the stirring rod 8 and the branch rod 9, thereby improving the mixing efficiency of the wastewater and lime, and significantly improving the neutralization efficiency of sulfuric acid in the wastewater.

[0038] When the present invention is in use, wastewater containing sulfuric acid and lime are fed into the barrel body 2 from the feed port 3, and then the entire device is started. Then, the first motor 4 drives the ring gear 6 to rotate through the first gear 5, and the ring gear 6 drives the barrel body 2 to rotate. The barrel body 2 causes the wastewater and lime inside to tumble, thereby making the sulfuric acid neutralization efficiency higher, and the lime and calcium sulfate precipitate are less likely to precipitate, and the lime is also less likely to clump.

[0039] The second motor 10 will drive the transmission gear 12 to rotate through the second gear 11, the transmission gear 12 will drive the third gear 13 to rotate, the third gear 13 will drive the horizontal shaft 7 to rotate, and the horizontal shaft 7 will drive the stirring rod 8 and the branch rod 9 to perform circular stirring in the barrel body 2, thereby completing the mixing of the wastewater and lime, so that the sulfuric acid in the wastewater is neutralized by the lime.

[0040] When the transmission gear 12 rotates, the transmission gear 12 will also drive the reciprocating screw 14 to rotate, and the reciprocating screw 14 will drive the reciprocating slide 15 to slide back and forth, and the reciprocating slide 15 will drive the horizontal axis 7 to move back and forth, and the horizontal axis 7 will drive the stirring rod 8 and the branch rod 9 to move back and forth synchronously, so that the stirring rod 8 and the branch rod 9 can reciprocate along the axis of the horizontal axis 7 while revolving around the axis of the horizontal axis 7, thereby significantly improving the stirring area of ​​the stirring rod 8 and the branch rod 9, thereby improving the mixing efficiency of the wastewater and lime, and significantly improving the neutralization efficiency of sulfuric acid in the wastewater.

[0041] When the horizontal axis 7 moves back and forth, the horizontal axis 7 drives the second piston plate 24 to slide back and forth in the cylinder body 23 through the U-shaped tube 25. When the second piston plate 24 moves away from the groove 29 and approaches the two ends of the cylinder body 23, the second piston plate 24 will compress the air in the two ends of the cylinder body 23. The air in the two ends of the cylinder body 23 will enter the U-shaped tube 25 through the exhaust pipe 26, and then enter the cavity 17, the sleeve 18 and the inner cavity 21 in sequence, and finally be discharged into the barrel body 2 from the end of the fine hole 22, so that the wastewater in the barrel body 2 is aerated, thereby further improving the neutralization efficiency of sulfuric acid. Since the branch rod 9 moves back and forth with the horizontal axis 7, the branch rod 9 can spray the exhausted air more evenly into the barrel body 2, making the aeration effect more significant. Since the cross-sectional area of ​​all the pores 22 is smaller than the cross-sectional area of ​​the exhaust pipe 26, the air entering the sleeve 18 cannot be discharged in time, so it will push the first piston plate 19 to slide in the direction away from the horizontal axis 7, thereby driving the stirring rod 8 to slide in the direction away from the horizontal axis 7, and the stirring rod 8 will drive the branch rod 9 to slide in the direction away from the horizontal axis 7. When the second piston plate 24 moves toward the middle of the cylinder body 23, negative pressure will be generated inside one end of the cylinder body 23, and external air will be sucked in through the air intake pipe 27. When the second piston plate 24 is located in the middle of the cylinder body 23, due to the setting of the slot 29, no exhaust or intake will be done at both ends of the cylinder body 23. During this period, the return spring 20 will drive the first piston plate 19 to move in the opposite direction and reset, so that the excess air in the sleeve 18 is gradually discharged, so that the positions of the stirring rod 8 and the branch rod 9 will also return to their original positions, so that the reciprocating horizontal axis 7 will also make the stirring rod 8 reciprocate and extend in the sleeve 18, so that the branch rod 9 can not only reciprocate along the axis of the horizontal axis 7, but also reciprocate in the direction perpendicular to the axis of the horizontal axis 7, which can further improve the effect of the branch rod 9 in stirring the wastewater and lime, and make the sulfuric acid neutralization effect higher, and the reciprocating and extending branch rod 9 will further improve the exhaust range of the fine hole 22, thereby making the aeration effect of the wastewater better, and indirectly improving the sulfuric acid neutralization effect.

[0042] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present invention can make slight changes or modifications to equivalent embodiments using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A sulfuric acid neutralization residual water device, comprising a base (1), characterized in that: Also includes: The barrel body (2) is arranged horizontally and is rotatably mounted on the base (1). The axial end edge of the barrel body (2) is provided with a feed port (3), and the base (1) is provided with a driving part for driving the barrel body (2) to rotate; A transverse shaft (7) is transversely arranged in the barrel body (2), the outer wall of the transverse shaft (7) is connected to a stirring rod (8), the outer wall of the stirring rod (8) is fixedly connected to a branch rod (9), the end of the stirring rod (8) is connected to an elastic scraper (28), the outer wall of the barrel body (2) is provided with a driving source for driving the transverse shaft (7) to rotate, and the transverse shaft (7) is provided with a telescopic portion for driving the stirring rod (8) to telescope along the axis.

2. A sulfuric acid neutralization residual water device according to claim 1, characterized in that, The driving unit comprises a first motor (4) fixedly mounted on the base (1); a first gear (5) is fixedly mounted on the output shaft of the first motor (4); and a ring gear (6) meshingly connected with the first gear (5) is fixedly mounted on the outer wall of the barrel body (2).

3. A sulfuric acid neutralization residual water device according to claim 1, characterized in that, The driving source comprises a second motor (10) fixedly mounted on the outer wall of the barrel body (2); a second gear (11) is fixedly mounted on the output shaft of the second motor (10); a transmission gear (12) meshingly connected with the second gear (11) is rotatably mounted on the outer wall of the barrel body (2); one end of the transverse shaft (7) passes through the outer wall of the barrel body (2) and is fixedly mounted with a third gear (13); the third gear (13) is meshingly connected with the transmission gear (12).

4. A sulfuric acid neutralization residual water device according to claim 3, characterized in that, The telescopic portion includes a sleeve (18) fixedly connected to the outer wall of the transverse axis (7), a first piston plate (19) is slidably installed in the sleeve (18), one end of the stirring rod (8) is fixedly connected to the first piston plate (19), a cavity (17) communicating with the sleeve (18) is provided in the transverse axis (7), a return spring (20) is installed between the first piston plate (19) and the end of the sleeve (18), an inner cavity (21) penetrating the first piston plate (19) is provided in the stirring rod (8), a fine hole (22) penetrating to the end of the branch rod (9) is provided in the inner cavity (21), and an air supply portion for indirectly supplying air to the cavity (17) is provided on the barrel body (2).

5. A sulfuric acid neutralization residual water device according to claim 4, characterized in that: The air supply portion comprises a cylinder (23) fixedly connected to the outer wall of the barrel (2), a second piston plate (24) being slidably mounted in the cylinder (23), an end of the transverse shaft (7) being rotatably connected to a U-shaped tube (25) communicating with the cavity (17), the other end of the U-shaped tube (25) passing through the second piston plate (24) and being fixedly connected to the second piston plate (24); Both ends of the cylinder (23) are fixedly connected to an intake pipe (27), and two exhaust pipes (26) communicating with both ends of the cylinder (23) are fixedly connected to the U-shaped tube (25). One-way valves are fixedly installed in the exhaust pipe (26) and the intake pipe (27). A groove (29) is provided on the outer wall of the middle portion of the cylinder (23), and a reciprocating portion for driving the second piston plate (24) to reciprocate is provided on the outer wall of the barrel (2). The cross-sectional area of ​​the intake pipe (27) and the exhaust pipe (26) is larger than the total cross-sectional area of ​​all the pores (22).

6. A sulfuric acid neutralization residual water device according to claim 5, characterized in that: The reciprocating portion includes a reciprocating screw (14) rotatably connected to the outer wall of the barrel (2), one end of the reciprocating screw (14) is connected to the transmission gear (12), and the length of the transmission gear (12) is the same as that of the reciprocating screw (14), and a reciprocating slide (15) is installed on the outer wall of the reciprocating screw (14), and one side of the reciprocating slide (15) is rotatably sleeved on the outer wall of the horizontal shaft (7).

7. A sulfuric acid neutralization residual water device according to claim 1, characterized in that: A support plate (30) is fixedly connected to the base (1), an exhaust pipe (16) is fixedly connected to the support plate (30), and one end of the exhaust pipe (16) extends to the inner top of the barrel body (2).

8. A sulfuric acid neutralization residual water device according to claim 3, characterized in that: A metal ring (34) electrically connected to the input end of the second motor (10) is fixedly connected to the outer wall of the barrel body (2), and an elastic sheet (35) is fixedly connected to the base (1). One end of the elastic sheet (35) elastically presses against the outer wall of the metal ring (34), and the other end of the elastic sheet (35) is fixedly connected to a wire (36).

9. A sulfuric acid neutralization residual water device according to claim 5, characterized in that: A protective cover (31) is fixedly connected to the outer wall of the shaft end of the barrel body (2), and the second motor (10), the reciprocating screw (14) and the cylinder body (23) are all located inside the protective cover (31).

10. A sulfuric acid neutralization residual water device according to claim 9, characterized in that: The outer wall of the protective cover (31) is provided with a ventilation slot (32), and a filter plate (33) is installed in the ventilation slot (32).

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