Sludge stirring equipment for acid mine wastewater treatment and use method of sludge stirring equipment

Abstract

The invention discloses sludge stirring equipment for acid mine wastewater treatment and a using method thereof.The sludge stirring equipment for acid mine wastewater treatment comprises the sludge stirring equipment for acid mine wastewater treatment, a driving shaft is rotatably mounted on one side of a motor mounting base, and a first stirring mechanism located on the outer side of the driving shaft is rotatably connected to the motor mounting base; a connecting gear is fixedly mounted on the surface of the driving shaft, a second stirring mechanism located on one side of the connecting gear is fixedly mounted on the driving shaft, and a plurality of third stirring mechanisms located on one side of the second stirring mechanism are slidably connected to the driving shaft. The first stirring mechanism, the second stirring mechanism and the third stirring mechanism are arranged, the stirring direction of the first stirring mechanism is opposite to the stirring direction of the third stirring mechanism, and the second stirring mechanism cleans sludge adhered to the inner wall of the digestion tank while stirring, so that the layering phenomenon of the sludge in the digestion tank is avoided; the sludge treatment effect of the digestion tank is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a sludge stirring device for treating acid mine wastewater and a use method thereof. Background Art

[0002] Mine water pollution refers to the phenomenon that mining industrial wastewater and domestic sewage containing various pollutants and toxic substances change their normal composition after being discharged into the water body, exceeding the self-purification capacity of the water, thereby deteriorating the water body and destroying the original use of the water body. Most of the mining industrial wastewater is acidic wastewater. At this time, it is necessary to purify the acidic wastewater.

[0003] After the acidic wastewater is purified, it can be recycled. In order to reduce the consumption of water resources in production, the sludge generated during the wastewater purification process is generally transported to a digester. The stirring equipment in the digester stirs the sludge so that the impurities in the sludge are fully in contact with the reagents. However, the stirring equipment in the existing digester has the following defects: the stirring equipment usually rotates in the same direction for stirring, which easily leads to stratification of the sludge. The stirring equipment cannot stir effectively, thereby reducing the quality of the treated sludge.

[0004] The applicant has many years of rich experience in design, development and actual production in the relevant industry, and has studied and improved the existing structure and deficiencies to provide a sludge mixing equipment for acid mine wastewater treatment and a method of use thereof, in order to achieve a more practical purpose. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a sludge stirring device for treating acidic mine wastewater and a method for using the same, which solves the problem that the stirring device usually rotates in the same direction for stirring, which easily leads to sludge stratification, the stirring device cannot effectively stir, and the quality of the treated sludge is reduced.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sludge stirring device for acid mine wastewater treatment, comprising a motor mounting seat, a drive shaft is rotatably mounted on one side of the motor mounting seat, a first stirring mechanism located outside the drive shaft is rotatably connected to the motor mounting seat, a connecting gear is fixedly mounted on the surface of the drive shaft, a second stirring mechanism located on one side of the connecting gear is fixedly mounted on the drive shaft, a plurality of third stirring mechanisms located on one side of the second stirring mechanism are slidably connected to the drive shaft, each of the plurality of third stirring mechanisms comprises two stirring blades and a movable block, stirring blades are fixedly mounted on both sides of the movable block, the driving shaft drives the movable block to rotate, the movable block drives the stirring blades to rotate, and the stirring blades stir the sludge in the digester.

[0009] Preferably, a stirring motor is fixedly mounted on the side of the motor mounting base away from the driving shaft, and the output end of the stirring motor passes through the motor mounting base and is fixedly connected to the end adjacent to the driving shaft. The staff energizes the stirring motor, the stirring motor starts, and the stirring motor drives the driving shaft to rotate.

[0010] Preferably, the surfaces of several of the movable blocks are threadedly connected with fixing screws, and several of the movable blocks are fixedly connected to the driving shaft through the fixing screws. The staff slides the movable block on the driving shaft to adjust the installation position of the third stirring mechanism, and the staff turns the fixing screws to fix the movable block.

[0011] Preferably, the first stirring mechanism includes a plurality of titanium alloy stirring rods, a steering shell and a gear ring. The steering shell is fixedly installed with a gear ring inside, and a plurality of titanium alloy stirring rods are fixedly installed on both sides of the steering shell. The outer layer of the connecting gear is meshed and connected with a plurality of teeth fixedly arranged on the inner wall of the gear ring. When the driving shaft rotates, it drives the connecting gear to rotate. When the connecting gear rotates, it contacts with the teeth on the gear ring. When the gear ring rotates, the gear ring drives the steering shell to rotate. The rotation direction of the steering shell is opposite to that of the driving shaft. When the steering shell rotates, it drives the titanium alloy stirring rod to rotate, and the titanium alloy stirring rod stirs the sludge in the digester.

[0012] Preferably, the second stirring mechanism includes a positioning shell, four baffles, a plurality of titanium alloy mixing rods, a plurality of scrapers, two sliding plates and four scrapers, both sides of the positioning shell are slidably connected with sliding plates, both ends of the connection between the positioning shell and the two sliding plates away from the driving shaft are fixedly installed with baffles, the two sliding plates are fixedly installed with a plurality of titanium alloy mixing rods on the opposite sides, a plurality of titanium alloy mixing rods are fixedly installed with scrapers at the ends away from the sliding plates, a plurality of mixing ports are provided on the surfaces of the titanium alloy mixing rods, scrapers are fixedly installed on both sides of the two sliding plates, the titanium alloy mixing rods on the sliding plates rotate with the driving shaft, the mixing ports on the titanium alloy mixing rods improve the mixing effect of the titanium alloy mixing rods on the sludge, the titanium alloy mixing rods clean the sludge on the inner wall of the digester while stirring the sludge, and the sliding plate drives the scraper to clean the sludge on the inner wall of the digester during the sliding process.

[0013] Preferably, the middle part of the positioning shell is fixedly connected to the driving shaft, and a plurality of connecting springs are fixedly installed between the two sliding plates and the driving shaft. The sliding plates are squeezed by the sludge, squeezing the connecting springs inward. The connecting springs are elastic, and the connecting springs undergo elastic deformation to buffer the squeezing force, so that the sliding plates are reset.

[0014] A method for using a sludge mixing device for treating acidic mine wastewater includes the following specific steps:

[0015] The staff injects sludge into the digester, and then energizes the stirring motor, which starts the stirring motor, and drives the driving shaft to rotate. When the driving shaft rotates, it drives the connecting gear to rotate. When the connecting gear rotates, it contacts the teeth on the ring gear, and the ring gear rotates. The ring gear drives the steering shell to rotate. The rotation direction of the steering shell is opposite to that of the driving shaft. When the steering shell rotates, it drives the titanium alloy stirring rod to rotate. The titanium alloy stirring rod stirs the sludge in the digester, and the titanium alloy mixing rod on the sliding plate rotates with the driving shaft. The mixing port on the titanium alloy mixing rod improves the mixing effect of the titanium alloy mixing rod on the sludge. The mixing rod stirs the sludge and cleans the sludge on the inner wall of the digester at the same time. The sliding plate is squeezed by the sludge and squeezes the connecting spring inward. The connecting spring is elastic and elastically deforms to buffer the squeezing force, so that the sliding plate is reset. During the sliding process, the sliding plate drives the scraper to clean the sludge on the inner wall of the digester. The staff slides the movable block on the drive shaft to adjust the installation position of the third stirring mechanism. The staff screws the fixing screw to fix the movable block. The drive shaft drives the movable block to rotate, and the movable block drives the stirring blades to rotate. The stirring blades stir the sludge in the digester.

[0016] (III) Beneficial effects

[0017] The present invention provides a sludge stirring device for treating acidic mine wastewater and a method for using the same. The device has the following beneficial effects:

[0018] By setting a first stirring mechanism, a second stirring mechanism and a third stirring mechanism, the stirring direction of the first stirring mechanism is opposite to that of the third stirring mechanism. The second stirring mechanism cleans the sludge adhered to the inner wall of the digester while stirring, thereby avoiding stratification of the sludge in the digester and improving the sludge treatment effect of the digester. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a side view of the present invention;

[0020] Figure 2 is a cross-sectional view of the second stirring mechanism of the present invention;

[0021] Figure 3 is a cross-sectional view of the first stirring mechanism of the present invention;

[0022] Figure 4 It is a connection diagram of the driving shaft and the connecting gear of the present invention;

[0023] Figure 5 It is a schematic diagram of the installation of the third stirring mechanism of the present invention on the driving shaft.

[0024] In the figure: 1, stirring motor; 2, first stirring mechanism; 21, titanium alloy stirring rod; 22, steering housing; 23, gear ring; 3, second stirring mechanism; 31, positioning housing; 32, baffle; 33, titanium alloy mixing rod; 34, scraper; 35, sliding plate; 36, connecting spring; 37, scraper; 38, mixing port; 4, driving shaft; 5, third stirring mechanism; 51, stirring blade; 52, movable block; 53, fixing screw; 6, motor mounting seat; 7, connecting gear. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-5The present invention provides a technical solution: a sludge stirring device for treating acid mine wastewater, comprising a motor mounting seat 6, a driving shaft 4 is rotatably mounted on one side of the motor mounting seat 6, a first stirring mechanism 2 located outside the driving shaft 4 is rotatably connected to the motor mounting seat 6, a connecting gear 7 is fixedly mounted on the surface of the driving shaft 4, a second stirring mechanism 3 located on one side of the connecting gear 7 is fixedly mounted on the driving shaft 4, a plurality of third stirring mechanisms 5 located on one side of the second stirring mechanism 3 are slidably connected to the driving shaft 4, the plurality of third stirring mechanisms 5 each comprise two stirring blades 51 and a movable block 52, stirring blades 51 are fixedly mounted on both sides of the movable block 52, the driving shaft 4 drives the movable block 52 to rotate, the movable block 52 drives the stirring blades 51 to rotate, and the stirring blades 51 stir the sludge in the digester.

[0027] A stirring motor 1 is fixedly installed on the side of the motor mounting seat 6 away from the driving shaft 4. The output end of the stirring motor 1 passes through the motor mounting seat 6 and is fixedly connected to the end adjacent to the driving shaft 4. The staff energizes the stirring motor 1, the stirring motor 1 starts, and the stirring motor 1 drives the driving shaft 4 to rotate.

[0028] The surfaces of several movable blocks 52 are threadedly connected with fixing screws 53, and several movable blocks 52 are fixedly connected to the driving shaft 4 through the fixing screws 53. The staff slides the movable blocks 52 on the driving shaft 4 to adjust the installation position of the third stirring mechanism 5, and the staff screws the fixing screws 53 to fix the movable blocks 52.

[0029] The first stirring mechanism 2 includes a plurality of titanium alloy stirring rods 21, a steering shell 22 and a gear ring 23. The gear ring 23 is fixedly installed inside the steering shell 22, and a plurality of titanium alloy stirring rods 21 are fixedly installed on both sides of the steering shell 22. The outer layer of the connecting gear 7 is meshed and connected with a plurality of teeth fixedly arranged on the inner wall of the gear ring 23. When the driving shaft 4 rotates, it drives the connecting gear 7 to rotate. When the connecting gear 7 rotates, it contacts with the teeth on the gear ring 23. The gear ring 23 rotates, and the gear ring 23 drives the steering shell 22 to rotate. The rotation direction of the steering shell 22 is opposite to that of the driving shaft 4. When the steering shell 22 rotates, it drives the titanium alloy stirring rod 21 to rotate, and the titanium alloy stirring rod 21 stirs the sludge in the digester.

[0030] The second stirring mechanism 3 includes a positioning shell 31, four baffles 32, a plurality of titanium alloy mixing rods 33, a plurality of scrapers 34, two slide plates 35 and four scrapers 37. The two sides of the positioning shell 31 are slidably connected with the slide plates 35. The two ends of the connection between the positioning shell 31 and the two slide plates 35 away from the driving shaft 4 are fixedly installed with baffles 32. The two slide plates 35 are fixedly installed with a plurality of titanium alloy mixing rods 33 on the opposite sides. The ends of the plurality of titanium alloy mixing rods 33 away from the slide plates 35 are fixedly installed with scrapers 37. 4. A plurality of mixing openings 38 are provided on the surfaces of the plurality of titanium alloy mixing rods 33. Scrapers 37 are fixedly installed on both sides of the two sliding plates 35. The titanium alloy mixing rods 33 on the sliding plates 35 rotate along with the driving shaft 4. The mixing openings 38 provided on the titanium alloy mixing rods 33 improve the mixing effect of the titanium alloy mixing rods 33 on the sludge. The titanium alloy mixing rods 33 stir the sludge while cleaning the sludge on the inner wall of the digester. The sliding plates 35 drive the scrapers 37 to clean the sludge on the inner wall of the digester during the sliding process.

[0031] The middle part of the positioning shell 31 is fixedly connected to the driving shaft 4. A plurality of connecting springs 36 are fixedly installed between the two sliding plates 35 and the driving shaft 4. The sliding plates 35 are squeezed by the sludge, squeezing the connecting springs 36 inward. The connecting springs 36 are elastic, and the connecting springs 36 undergo elastic deformation to buffer the squeezing force, so that the sliding plates 35 are reset.

[0032] A method for using a sludge mixing device for treating acidic mine wastewater includes the following specific steps:

[0033] In the first embodiment, during operation, the staff injects sludge into the digester, and the staff energizes the stirring motor 1, and the stirring motor 1 starts. The stirring motor 1 drives the driving shaft 4 to rotate, and when the driving shaft 4 rotates, it drives the connecting gear 7 to rotate. When the connecting gear 7 rotates, it contacts the teeth on the ring gear 23, and the ring gear 23 rotates. The ring gear 23 drives the steering shell 22 to rotate. The rotation direction of the steering shell 22 is opposite to the rotation direction of the driving shaft 4. When the steering shell 22 rotates, it drives the titanium alloy stirring rod 21 to rotate. The titanium alloy stirring rod 21 stirs the sludge in the digester, and the titanium alloy mixing rod 33 on the sliding plate 35 rotates with the driving shaft 4. The mixing port 38 provided on the titanium alloy mixing rod 33 improves the mixing effect of the titanium alloy mixing rod 33 on the sludge. As a result, the titanium alloy mixing rod 33 stirs the sludge and cleans the sludge on the inner wall of the digester at the same time. The sliding plate 35 is squeezed by the sludge and squeezes the connecting spring 36 inward. The connecting spring 36 is elastic, and the connecting spring 36 undergoes elastic deformation to buffer the squeezing force, so that the sliding plate 35 is reset. During the sliding process, the sliding plate 35 drives the scraper 37 to clean the sludge on the inner wall of the digester. The staff slides the movable block 52 on the drive shaft 4 to adjust the installation position of the third stirring mechanism 5. The staff screws the fixing screw 53 to fix the movable block 52. The drive shaft 4 drives the movable block 52 to rotate. The movable block 52 drives the stirring blade 51 to rotate, and the stirring blade 51 stirs the sludge in the digester.

[0034] To sum up, by setting the first stirring mechanism, the second stirring mechanism and the third stirring mechanism, the stirring direction of the first stirring mechanism is opposite to that of the third stirring mechanism, and the second stirring mechanism cleans the sludge adhered to the inner wall of the digester while stirring, thereby avoiding stratification of the sludge in the digester and improving the sludge treatment effect of the digester.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge mixing device for treating acid mine wastewater, comprising a motor mounting base (6), characterized in that: A driving shaft (4) is rotatably mounted on one side of the motor mounting seat (6), and a first stirring mechanism (2) located outside the driving shaft (4) is rotatably connected to the motor mounting seat (6); A connecting gear (7) is fixedly mounted on the surface of the driving shaft (4); a second stirring mechanism (3) located on one side of the connecting gear (7) is fixedly mounted on the driving shaft (4); and a plurality of third stirring mechanisms (5) located on one side of the second stirring mechanism (3) are slidably connected to the driving shaft (4); The plurality of third stirring mechanisms (5) each comprise two stirring blades (51) and a movable block (52), and stirring blades (51) are fixedly mounted on both sides of the movable block (52).

2. The sludge stirring device for treating acid mine wastewater according to claim 1, characterized in that: A stirring motor (1) is fixedly mounted on the side of the motor mounting seat (6) away from the driving shaft (4), and an output end of the stirring motor (1) passes through the motor mounting seat (6) and is fixedly connected to an end adjacent to the driving shaft (4).

3. The sludge mixing equipment for treating acid mine wastewater according to claim 1, characterized in that: The surfaces of the plurality of movable blocks (52) are all threadedly connected with fixing screws (53), and the plurality of movable blocks (52) are fixedly connected to the driving shaft (4) via the fixing screws (53).

4. The sludge mixing equipment for treating acid mine wastewater according to claim 1, characterized in that: The first stirring mechanism (2) comprises a plurality of titanium alloy stirring rods (21), a steering shell (22) and a gear ring (23); the gear ring (23) is fixedly mounted inside the steering shell (22); a plurality of titanium alloy stirring rods (21) are fixedly mounted on both sides of the steering shell (22); and the outer layer of the connecting gear (7) is meshingly connected with a plurality of teeth fixedly arranged on the inner wall of the gear ring (23).

5. The sludge mixing equipment for treating acid mine wastewater according to claim 1, characterized in that: The second stirring mechanism (3) comprises a positioning shell (31), four baffles (32), a plurality of titanium alloy mixing rods (33), a plurality of scrapers (34), two sliding plates (35) and four scrapers (37); the sliding plates (35) are slidably connected to both sides of the positioning shell (31); baffles (32) are fixedly installed at both ends of the connection between the positioning shell (31) and the two sliding plates (35) away from the driving shaft (4); a plurality of titanium alloy mixing rods (33) are fixedly installed on the opposite sides of the two sliding plates (35); a scraper (34) is fixedly installed on the ends of the plurality of titanium alloy mixing rods (33) away from the sliding plates (35); a plurality of mixing ports (38) are opened on the surfaces of the plurality of titanium alloy mixing rods (33); and scrapers (37) are fixedly installed on both sides of the two sliding plates (35).

6. The sludge mixing equipment for treating acid mine wastewater according to claim 5, characterized in that: The middle portion of the positioning shell (31) is fixedly connected to the driving shaft (4), and a plurality of connecting springs (36) are fixedly installed between the two sliding plates (35) and the driving shaft (4).

7. A method for using a sludge stirring device for treating acid mine wastewater, characterized in that: The sludge mixing device for treating acidic mine wastewater according to claim 1 is provided, and the specific steps are as follows: The staff injects sludge into the digestion tank, and the staff energizes the stirring motor (1), and the stirring motor (1) starts. The stirring motor (1) drives the driving shaft (4) to rotate. When the driving shaft (4) rotates, it drives the connecting gear (7) to rotate. When the connecting gear (7) rotates, it contacts the teeth on the ring gear (23). The ring gear (23) rotates, and the ring gear (23) drives the steering shell (22) to rotate. The rotation direction of the steering shell (22) is opposite to the rotation direction of the driving shaft (4). When the steering shell (22) rotates, it drives the titanium alloy stirring rod (21) to rotate. The titanium alloy stirring rod (21) stirs the sludge in the digestion tank. The titanium alloy mixing rod (33) on the sliding plate (35) rotates along with the driving shaft (4). The mixing port (38) provided on the titanium alloy mixing rod (33) improves the mixing effect of the titanium alloy mixing rod (33) on the sludge. As a result, the titanium alloy mixing rod (33) stirs the sludge and cleans the sludge on the inner wall of the digester at the same time. The sliding plate (35) is squeezed by the sludge and squeezes the connecting spring (36) inward. The connecting spring (36) is elastic. The connecting spring (36) undergoes elastic deformation to buffer the squeezing force, so that the sliding plate (35) is reset. During the sliding process, the sliding plate (35) drives the scraper (37) to clean the sludge on the inner wall of the digester. The staff slides the movable block (52) on the drive shaft (4) to adjust the installation position of the third stirring mechanism (5). The staff screws the fixing screw (53) to fix the movable block (52). The drive shaft (4) drives the movable block (52) to rotate. The movable block (52) drives the stirring blade (51) to rotate. The stirring blade (51) stirs the sludge in the digester.

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