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CN-122010207-A - Acid heavy metal wastewater recycling treatment equipment based on mine

CN122010207ACN 122010207 ACN122010207 ACN 122010207ACN-122010207-A

Abstract

The invention discloses mine-based acidic heavy metal wastewater recovery treatment equipment, relates to the technical field of wastewater treatment, and specifically comprises a water inlet bin, a protection mechanism, a rotating mechanism, a driving mechanism, a reagent conduit and a reagent supply mechanism. According to the invention, the rotating mechanism and the reagent feeding mechanism are arranged, before wastewater enters the reaction tank, the two rotating mechanisms synchronously rotate in opposite directions, the two reverse rotational flows collide and shear each other, the laminar flow state of water flow is broken, a high-strength three-dimensional turbulent flow field is formed in the water guide pipe, the reagent guide pipe and the nozzle synchronously rotating along with the inclined blade are matched, the chemical reagent is sprayed and dispersed into the water flow in an omnibearing manner, even solid particles penetrating through the slotted hole net can be contacted with the chemical reagent, the chemical reagent is immersed into the particles in advance, the interference of residual acid wastewater on the reaction process in the reaction tank is avoided, the sufficiency of neutralization reaction and heavy metal removal reaction is ensured, and the wastewater treatment effect is remarkably improved.

Inventors

  • LIAO ZHENGJIA
  • HUANG YONG
  • PENG SHANZHEN
  • CHEN TAO
  • MA GUIBIAO
  • LI JIAN
  • GONG ZHENG
  • LI TENGHUI

Assignees

  • 广东省大宝山矿业有限公司

Dates

Publication Date
20260512
Application Date
20260407

Claims (10)

  1. 1. Acid heavy metal wastewater recovery treatment equipment based on mine, characterized by comprising: The device comprises a water inlet bin (1), wherein a primary filtering mechanism (3) is arranged in the water inlet bin and is used for carrying out primary filtering on solid particles in wastewater, the output end of the water inlet bin (1) is connected with a water guide pipe (2), and the output end of the water guide pipe (2) is communicated with the input end of a reaction tank; the protection mechanism (4) is arranged inside the water guide pipe (2) and is used for carrying out secondary filtration on solid particles in the wastewater flowing in the water guide pipe (2); the two rotating mechanisms (5) are arranged at positions between the protection mechanism (4) and the output end of the water guide pipe (2); The driving mechanism (6) is arranged on the water guide pipe (2) and is used for driving the two rotating mechanisms (5) to synchronously and reversely rotate; The reagent guide pipes (7) are arranged on the two rotating mechanisms (5), the reagent guide pipes (7) are arranged on the two rotating mechanisms, and a plurality of nozzles (9) are arranged on the reagent guide pipes (7); and a reagent supply mechanism (8) provided on the water guide pipe (2) and configured to supply a chemical reagent to the two reagent pipes (7).
  2. 2. The mine-based acidic heavy metal wastewater recovery treatment device according to claim 1, wherein the primary filtering mechanism (3) comprises a filtering grid (10), a comb plate (11), a traction assembly (12), a collecting bin (13), a guide rod (14), a return spring (15), a sliding block (16) and a driving rod (17); the filter grating (10) is connected in the water inlet bin (1) by the inclined direction of the water inlet bin (1), a plurality of filter tanks (18) are arranged on the filter grating (10) in a penetrating mode along a straight line at equal intervals, the filter tanks (18) extend to the high end from the bottom end of the filter grating (10) in a straight line mode, the comb plate (11) is arranged on the filter grating (10), a plurality of cleaning plates (19) are connected on the comb plate (11), and the cleaning plates (19) correspond to the filter tanks (18) one by one and are clamped with the filter tanks (18); Guide rods (14) are connected to the outer walls of the two sides of the water inlet bin (1), the axes of the guide rods (14) are parallel to the inclined direction of the filter grid (10), sliding blocks (16) are connected to the guide rods (14) in a sliding manner, the sliding blocks (16) are connected with the comb plate (11) through driving rods (17), return springs (15) are sleeved outside the guide rods (14), the two ends of the return springs (15) are connected with the high ends of the guide rods (14) and the sliding blocks (16) respectively, slag discharging holes (20) penetrating through the side walls of the water inlet bin (1) are formed in the position, close to the high ends of the filter grid (10), of the water inlet bin (1), the collecting bin (13) is connected to the outer side wall of the water inlet bin (1), ports of the collecting bin (13) correspond to the slag discharging holes (20), and an electric valve I (21) is arranged at the output end of the collecting bin (13); The traction assembly (12) is arranged on the water inlet bin (1), the traction end of the traction assembly (12) is connected with the comb plate (11), and the traction assembly (12) is used for dragging the comb plate (11) to slide along the extension direction of the filter tank (18).
  3. 3. The mine-based acidic heavy metal wastewater recovery and treatment apparatus of claim 2, wherein the traction assembly (12) comprises a motor mounting plate (22), a first driving motor (23), a winch (24), a traction rope (25) and two first bearings (26); The motor mounting plate (22) is mounted on the outer side wall of the water inlet bin (1), and is located above the collecting bin (13), the first bearings (26) are connected to the motor mounting plate (22), the first bearings (26) are rotatably connected with the bearing shafts (27), the winch (24) is coaxially connected with the bearing shafts (27), the traction rope (25) is wound on the winch (24), one end of the traction rope (25) is connected with the comb plate (11), the first driving motor (23) is mounted on the motor mounting plate (22), and the output end of the first driving motor (23) is coaxially connected with the bearing shafts (27).
  4. 4. The mine-based acidic heavy metal wastewater recycling treatment device according to claim 1, wherein the protection mechanism (4) comprises a slotted hole net (28), a plurality of arc scraping plates (29), a rotating column (30), a rotating shaft (31), a sealing gear box (32), a first driving shaft (33), a first rotating bevel gear (34), a second rotating bevel gear (35) and a second driving motor (36); The slot hole net (28) is arranged along the radial direction of the water guide pipe (2), the rotary column (30) is located at the position, close to the input end of the water guide pipe (2), of the slot hole net (28), the arc scraping plates (29) are arranged around the axis of the rotary column (30) at equal intervals, each arc scraping plate (29) is in contact with the surface of the slot hole net (28), the sealing gear boxes (32) are fixedly connected in the water guide pipe (2) through fixing rods (320), the rotary bevel gears I (34) and the rotary bevel gears II (35) are located in the sealing gear boxes (32), one end of the rotary shaft (31) penetrates through the sealing gear boxes (32) and is connected with the rotary bevel gears II (35), the rotary shaft (31) is connected with the sealing gear boxes (32) in a sealing and rotating mode, the output ends of the driving motor II (36) are connected with one end of the driving shaft I (33) in a coaxial mode, and the other end of the driving motor II (36) is connected with the driving shaft I (33) in a sealing mode, and the driving shaft I (33) is connected with the sealing bevel gears II (33) in a sealing mode, and the sealing bevel gears II (32) in a sealing mode.
  5. 5. The mine-based acidic heavy metal wastewater recycling treatment device according to claim 4, wherein a sedimentation tank (37) is arranged on the side wall of the water guide pipe (2), the sedimentation tank (37) is communicated with the inside of the water guide pipe (2), an electric valve II (38) is arranged at the bottom of the sedimentation tank (37), a material level sensor (39) is arranged on the side wall of the sedimentation tank (37), the sensing end of the material level sensor (39) extends to the inside of the sedimentation tank (37), and the sedimentation tank (37) is positioned at one side position of the slotted hole net (28) close to the input end of the water guide pipe (2) and below one side of the slotted hole net (28).
  6. 6. The mine-based acidic heavy metal wastewater recovery treatment device according to claim 1, wherein both rotating mechanisms (5) comprise a fixed bracket (40), a rotating pipe (41) and a plurality of inclined blades (42); The fixed support (40) is connected to the inner wall of the water guide pipe (2) along the diameter of the water guide pipe (2), the rotary pipe (41) is rotationally connected to the fixed support (40), and the inclined blades (42) are radially extended along the water guide pipe (2) and are equidistantly arranged around the axis of the rotary pipe (41).
  7. 7. The mine-based acidic heavy metal wastewater recovery treatment apparatus of claim 6, wherein the driving mechanism (6) comprises a sealing tube (43), two driving bevel gears one (44), a driving bevel gear two (45), a driving shaft two (46), a driving motor three (47), a bearing two (48) and a sealing ring (49); The sealing tube (43) is located at a position between the two rotating mechanisms (5), two ends of the sealing tube (43) are respectively connected with the end parts of the rotating tubes (41) on the two rotating mechanisms (5) in a sealing and rotating mode, the axis of the sealing tube (43) coincides with the axis of the two rotating tubes (41), the driving shaft II (46) extends radially along the water guide tube (2), the driving motor III (47) is mounted on the outer wall of the water guide tube (2), the output end of the driving motor III (47) is coaxially connected with one end of the driving shaft II (46), the driving bevel gear II (45) is coaxially connected with the other end of the driving shaft II (46), the driving bevel gear II (44) is rotatably connected into the sealing tube (43) through the bearing II (48), and the driving bevel gears II (44) are respectively coaxially connected with the rotating tubes (41) on the two rotating mechanisms (5).
  8. 8. The mine-based acidic heavy metal wastewater recycling apparatus according to claim 7, wherein each inclined blade (42) is provided with a reagent conduit (7), the reagent conduits (7) are arranged along the extending direction of the inclined blade (42), and two adjacent reagent conduits (7) are communicated; The reagent feeding mechanism (8) comprises a feeding pipe (50), a fixed pipe (51), a rotary joint (52) and an input pipe fitting, wherein the feeding pipe (50) is arranged in the rotary pipe (41) on the two rotary mechanisms (5), the output end of the feeding pipe (50) is communicated with one corresponding reagent guide pipe (7), the input end of the feeding pipe (50) is connected with the end part of the fixed pipe (51) through the rotary joint (52), and the fixed pipe (51) is fixedly connected in the sealing pipe (43).
  9. 9. The mine-based acidic heavy metal wastewater recovery treatment device according to claim 8, wherein the input pipe fitting is composed of a first input pipe (53) and a second input pipe (54), and the output end of the first input pipe (53) is communicated with the fixed pipe (51); The reagent supply mechanism (8) further comprises a liquid storage tank (55), a liquid level sensor (56) and a water pump (57), wherein the input end of the first input pipe (53) is connected with the output end of the water pump (57), the first input pipe (53) is provided with a first flow sensor (58), the output end of the second input pipe (54) is connected with the input end of the water pump (57), the input end of the second input pipe (54) extends into the liquid storage tank (55), the liquid storage tank (55) is arranged on a water guide pipe (2), the liquid level sensor (56) is arranged on the liquid storage tank (55), the sensing end of the liquid level sensor extends into the liquid storage tank (55), the water guide pipe (2) is connected with a bearing plate (59), and the water pump (57) is arranged on the bearing plate (59).
  10. 10. The mine-based acidic heavy metal wastewater recycling treatment device according to claim 5, wherein the water guide pipe (2) is provided with a second flow sensor (60) and a third flow sensor (61), the second flow sensor (60) and the third flow sensor (61) are respectively arranged on two sides of the slotted hole net (28), and sensing ends of the second flow sensor (60) and the third flow sensor (61) extend into the water guide pipe (2).

Description

Acid heavy metal wastewater recycling treatment equipment based on mine Technical Field The invention relates to the technical field of wastewater treatment, in particular to mine acidic heavy metal wastewater recovery treatment equipment. Background The mine acid heavy metal wastewater recovery treatment equipment is special environment-friendly equipment customized for acid mine wastewater generated by the whole mining process, integrates acidity regulation and control, deep heavy metal removal, solid-liquid separation, water resource recycling and valuable metal recycling and recovery functions, and belongs to a set of industrial environment-friendly special equipment. The equipment is different from general sewage treatment equipment, can adapt to the characteristics of strong acidity, high heavy metal load, large fluctuation of water quality and water quantity, strong pollution persistence and easy corrosion and scaling of acid mine wastewater, has the aims of environment-friendly compliant emission, pollution source prevention and control and resource recycling, and is core environment-friendly equipment in the fields of metal mine and high-sulfur coal mine exploitation, mineral separation, tailing disposal and pit closing mining area ecological restoration. The recovery treatment equipment is usually a complete set of integrated system, and after being led out from a discharge port, the mine acidic heavy metal wastewater is firstly led into a neutralization reaction tank to carry out chemical reaction, and then sequentially led into a sedimentation tank, a filter press, a heavy metal capturing device, membrane equipment and a resource recovery device to complete subsequent treatment. However, solid impurities such as sand stone, silt and the like are often mixed in the mine acidic heavy metal wastewater, and under the action of gravity, the impurities are easy to settle and accumulate at the bottom of the neutralization reaction tank. In the prior art, sand and silt piled at the bottom of the tank can obstruct the effective immersion of chemical reagents, so that the adding amount of the chemical reagents is difficult to accurately estimate and reasonably control, meanwhile, the piled impurities can continuously exude acid heavy metal wastewater, the chemical reaction process in the reaction tank is seriously interfered, the wastewater treatment effect is further reduced, and the recovery treatment cost and time consumption of the acid heavy metal wastewater in the mine are increased. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides mine-based acidic heavy metal wastewater recovery and treatment equipment. In order to achieve the above purpose, the present invention adopts the following technical scheme: acid heavy metal wastewater recovery treatment equipment based on mine includes: The water inlet bin is internally provided with a primary filtering mechanism for primary filtering of solid particles in the wastewater, the output end of the water inlet bin is connected with a water guide pipe, and the output end of the water guide pipe is communicated with the input end of the reaction tank; The protection mechanism is arranged inside the water guide pipe and is used for carrying out secondary filtration on solid particles in the wastewater flowing in the water guide pipe; The two rotating mechanisms are arranged at the positions between the protection mechanism and the output end of the water guide pipe; The driving mechanism is arranged on the water guide pipe and is used for driving the two rotating mechanisms to synchronously and reversely rotate; the reagent guide pipes are arranged on the two rotating mechanisms, and a plurality of nozzles are arranged on the reagent guide pipes; and a reagent supply mechanism provided on the water guide pipe and configured to supply a chemical reagent to the two reagent guide pipes. Preferably, the primary filter mechanism comprises a filter grid, a comb plate, a traction assembly, a collection bin, a guide rod, a return spring, a sliding block and a driving rod; The filter grating is connected in the water inlet bin in an inclined direction of the water inlet bin horizontal plane, a plurality of filter tanks are arranged on the filter grating in an equidistant penetrating way along a straight line, the filter tanks extend from the bottom end of the filter grating to the high end in a straight line, the comb plate is arranged on the filter grating, a plurality of cleaning plates are connected on the comb plate, and the cleaning plates are in one-to-one correspondence with the filter tanks and are clamped with the filter tanks; The two sides of the water inlet bin are respectively connected with guide rods, the axes of the guide rods are parallel to the inclined direction of the filtering grid, the two guide rods are respectively connected with sliding blocks in a sliding manner, the two sliding blocks are connected