Efficient waste acid wastewater residue discharging mechanism and arsenic removal treatment device

Abstract

The utility model provides a kind of efficient dirty acid wastewater deslagging mechanism and arsenic removal treatment device, comprising: support frame, gypsum residue dehydrator is fixedly connected with the support frame, first conduit and second conduit are provided in the side wall of the gypsum residue dehydrator, the first conduit, second conduit are connected with gypsum residue dehydrator inside, the first conduit is used to import wastewater after sulfuration reaction, second conduit is used to export wastewater after gypsum residue dehydration, deslagging dehydration mechanism, rotatably set in the gypsum residue dehydrator, including residue separation component, deslagging component, the residue separation component separates gypsum residue and wastewater in gypsum residue dehydrator, to make the deslagging component discharge gypsum residue, the utility model increases deslagging dehydration mechanism, so that gypsum residue and arsenic wastewater generated in reaction are separated, so that gypsum residue can be continuously and stably discharged by deslagging component, to improve the quality and efficiency of wastewater treatment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a high-efficiency acid wastewater sludge discharge mechanism and an arsenic removal treatment device. Background Technology

[0002] Arsenic, commonly known as arsenic trioxide, is a nonmetallic element located in the 4th period and group VA of the periodic table, with atomic number 33 and the element symbol As. It exists in three allotropes: gray arsenic, black arsenic, and yellow arsenic. Arsenic is widely distributed in nature, with hundreds of arsenic minerals discovered. Arsenic and its compounds are used in pesticides, herbicides, insecticides, and many alloys. Its compound, arsenic trioxide (arsenic trioxide), is a highly toxic substance. With rapid industrial development, arsenic pollution in water bodies is becoming increasingly serious.

[0003] Among related technologies, a utility model patent with patent publication number CN216946340U discloses a device for removing arsenic from wastewater using electrocoagulation. The device includes a base, a flocculation tank on the base, a sealing groove on the flocculation tank, a top cover on the sealing groove, a circulation port on the upper side of the flocculation tank, a cleaning port on the lower side of the flocculation tank, a partition inside the flocculation tank, and a pad on the top of the flocculation tank. The partition has two liquid inlets, I and II, and a liquid channel within the partition. A cathode plate and an anode plate are installed inside the flocculation tank.

[0004] Based on the aforementioned prior art, the inventors, in conjunction with relevant technologies, discovered in practical applications that this utility model only solves the problem of flocculation. However, in the process of treating arsenic wastewater containing acid, the gypsum residue produced by the reaction of sulfides and acid is difficult to remove. The entry of gypsum particles into the arsenic removal reaction step will reduce the efficiency and quality of the arsenic removal reaction. Utility Model Content

[0005] To address the problem that existing technologies cannot remove gypsum residue from wastewater reactions, this utility model provides a highly efficient acid wastewater sludge discharge mechanism and an arsenic removal treatment device. The present invention provides a high-efficiency acid wastewater sludge discharge mechanism and arsenic removal treatment device, which adopts the following technical solution: A high-efficiency acid wastewater sludge discharge mechanism includes: Support frame; The gypsum slag dewatering machine is fixedly connected to the support frame. The side wall of the gypsum slag dewatering machine is equipped with a first guide pipe and a second guide pipe. The first guide pipe and the second guide pipe are connected to the inside of the gypsum slag dewatering machine. The first guide pipe is used to introduce the wastewater after the sulfidation reaction, and the second guide pipe is used to discharge the wastewater after the gypsum slag dewatering. The slag discharge and dewatering mechanism is rotatably installed inside the gypsum slag dewatering machine. It includes a slag separating component and a slag discharge component. The slag separating component separates gypsum slag and wastewater inside the gypsum slag dewatering machine so that the slag discharge component can discharge the gypsum slag.

[0006] Furthermore, the slag separating assembly includes: a first motor, a rotating shaft, spiral blades, and a filter cylinder. The first motor is fixedly connected to the bottom of the gypsum residue dewatering machine; A rotating shaft is fixedly connected to the output end of the first motor; The spiral blades are fixedly connected to the outer wall of the rotating shaft, and the spiral blades are arranged along the outer diameter of the rotating shaft. The filter cylinder is fixedly connected to the top and bottom walls of the gypsum slag dewatering machine, and there is a gap between the spiral blades and the inner wall of the filter cylinder. The slag removal assembly includes: The slag discharge outlet is fixedly connected to the side wall of the gypsum slag dewatering machine; The water distribution top block is fixedly connected to the side wall of the slag discharge outlet and is installed inside the filter cylinder; Furthermore, a spiral top block is fixedly connected to the top of the spiral blade, and a spiral bottom protrusion is fixedly connected to the bottom of the spiral blade. The filter cylinder and the spiral blade have filter holes. The spiral bottom protrusion is attached to the inner wall of the filter cylinder, and the spiral top block is attached to the side wall of the water distribution top block.

[0007] Furthermore, it also includes: a tilting mechanism, which is installed on one side of the gypsum sludge dewatering machine; The dumping mechanism includes: The guide rail is fixedly connected to the side wall of the support frame; The slider is slidably connected to the side wall of the guide rail; The tilting frame is fixedly connected to the side wall of the slider. A gypsum residue collection hopper is installed on a tilting frame; The tilting rotating rod is rotatably connected to the side wall of the tilting frame; The tilting frame has a through hole, and the tilting rotating rod passes through the through hole and is rotatably connected to it. A first gear is fixedly connected to a section of the tilting rotating rod that passes through the through hole. The second motor is fixedly connected to the side wall of the support frame; The second gear is fixedly connected to the output end of the second motor, and the second gear meshes with the first gear. Furthermore, it also includes: a vulcanization reaction mechanism, disposed at the end of the first conduit; The vulcanization reaction mixer is fixedly connected to the side wall of the support frame; The wastewater inlet is fixedly connected to the side wall of the sulfidation reaction mixer; The third motor is fixedly connected to the top of the vulcanization reaction mixer; The vulcanizing stirring rod is fixedly connected to the output end of the third motor; The first pH detector is installed on the side wall of the vulcanization reaction mixer, and the monitoring end of the first pH detector passes through the side wall of the vulcanization reaction mixer.

[0008] Furthermore, the aforementioned wastewater sludge discharge mechanism is adopted; Arsenic removal treatment equipment includes: The arsenic removal reaction mixer is fixedly connected to the side wall of the support frame. The second conduit is connected to the arsenic removal reaction mixer. A treatment water pump is installed on the side wall of the second conduit. A third conduit is installed at the bottom of the arsenic removal reaction mixer and is connected to the inside of the arsenic removal reaction mixer. The arsenic removal reaction mechanism is located inside the arsenic removal reaction mixer and includes an arsenic removal stirring component and a heating reaction component. The arsenic removal stirring component is used to treat the wastewater to be arsenic removed introduced by the second conduit so that the heating reaction component can be heated.

[0009] Furthermore, the arsenic removal stirring assembly includes: The arsenic removal reaction mixer is fixedly connected to the side wall of the support frame; The fourth motor is fixedly connected to the top of the arsenic removal reaction mixer; The arsenic removal stirring rod is fixedly connected to the output end of the fourth motor; The second pH detector is installed on the side wall of the arsenic removal reaction mixer, and the monitoring end of the second pH detector passes through the side wall of the arsenic removal reaction mixer. The reaction components include: The heating chamber is fixedly connected to the outer wall of the arsenic removal reaction mixer; The heating element is located inside the heating chamber; The heating circulation pump is fixedly connected to the outer wall of the heating chamber. The heating pipe is spirally arranged along the outer diameter of the arsenic reaction and arsenic removal stirrer. The two ends of the heating pipe are fixedly installed with the output and input ends of the heating circulation pump.

[0010] Furthermore, it also includes a sedimentation and sludge removal mechanism, which includes: A flocculent reaction sedimentation tank is fixedly installed at one end of a third guide tube, and the flocculent reaction sedimentation tank has a sedimentation cavity. The clear water outlet is fixedly connected to the side wall of the flocculent reaction sedimentation tank; The effluent weir is located on the inner wall of the flocculent reaction sedimentation tank; The water tank is fixedly connected to the end of the clear water outlet away from the flocculation reaction sedimentation tank.

[0011] Furthermore, the sludge discharge mechanism also includes a drive assembly and a sludge discharge assembly; The driver components include: The fifth motor is fixedly installed on the outer wall of the flocculent reaction sedimentation tank; The transmission chamber is fixedly connected to the inner wall of the flocculent reaction sedimentation tank; The third pH detector is installed on the side wall of the flocculent reaction sedimentation tank, and the monitoring end of the third pH detector passes through the side wall of the flocculent reaction sedimentation tank. The transmission rod is fixedly connected to the output end of the fifth motor and passes through the side wall of the transmission compartment. The first bevel gear is fixedly connected to the end of the transmission rod that passes through the transmission compartment; The flocculation stirring rod is rotatably connected to the two opposite inner side walls of the flocculation reaction sedimentation tank, and the flocculation stirring rod passes through the side wall of the transmission chamber; The second bevel gear is fixedly connected to the end of the flocculation stirring rod that passes through the transmission chamber; The first bevel gear and the second bevel gear are meshed and connected inside the transmission compartment; The sludge removal assembly includes: The sludge hopper is fixedly connected to the bottom of the flocculent reaction sedimentation tank; The sludge discharge cylinder is fixedly connected to the outer wall of the sludge hopper; The sludge discharge plate is fixedly connected to the output end of the sludge discharge cylinder, and the sludge discharge plate is in contact with the inner wall of the sludge hopper. The sludge discharge pipe is fixedly connected to the outer wall of the sludge hopper; Furthermore, it also includes: The storage and dosing mechanism is installed on the side wall of the support frame; Storage and dosing facilities include: The support platform is located inside the support frame; The sodium hydrosulfide tank, reagent tank, and flocculant tank are all fixedly connected to the top of the support platform; The dosing device is fixedly connected to the side wall of the support frame. The dosing device is connected to the sodium hydrosulfide tank, the reagent tank, and the flocculant tank through pipelines. The dosing device is also connected to the sulfidation reaction mixer, the arsenic removal reaction mixer, and the flocculation reaction sedimentation tank through pipelines.

[0012] In summary, the beneficial effects of this utility model are as follows: This utility model, a slag discharge and dewatering mechanism, enables the separation of arsenic wastewater and gypsum slag, allowing the gypsum slag to be continuously and stably discharged through the slag discharge component. This effectively reduces the residence time of gypsum slag inside the equipment, avoids reducing the efficiency and quality of wastewater treatment, reduces the risk of wear and tear on the equipment, and thus ensures the stable operation of arsenic removal treatment of acidic wastewater. The pouring mechanism pours the gypsum residue from the gypsum collection hopper into the container for collection, effectively preventing workers from coming into contact with the gypsum residue, improving the overall automation of the equipment, and ensuring that the entire gypsum residue dewatering and collection process is more continuous and efficient. Sulfide reaction mechanism: Sodium hydrosulfide is used to remove impurity ions such as sulfate from the wastewater through rapid mechanical stirring, so that gypsum slag is produced, which lays the foundation for subsequent treatment and effectively ensures the efficiency and quality of subsequent gypsum slag dewatering treatment. Arsenic removal reaction mechanism: The arsenic removal agent is stirred with the wastewater, and the heating reaction components start working at the same time. The wastewater is heated while being stirred, so that the arsenic ions in the wastewater can fully contact and chemically react with the subsequently added arsenic removal agent under suitable temperature and stirring conditions, forming insoluble arsenic compound precipitates. This lays the foundation for the subsequent precipitation reaction process and effectively improves the removal efficiency and stability of arsenic in the wastewater. Sedimentation and sludge discharge mechanism: Sludge and water are separated by natural sedimentation. The sludge in the sludge hopper is pushed into the sludge discharge port by the sludge pusher plate in the sludge hopper through the output end of the sludge discharge cylinder. The clear liquid at the top of the flocculation reaction sedimentation tank flows into the clear water inlet from the clear water weir, and then into the clear water pool through the clear water inlet, which further ensures the stability and efficiency of the flocculation sedimentation reaction. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a front view schematic diagram of the overall structure of this utility model; Figure 3 This is a top view of the overall structure of this utility model; Figure 4 This utility model Figure 3 Schematic diagram of the AA section; Figure 5 This utility model Figure 3 Schematic diagram of the BB cross section; Figure 6 This is a three-dimensional schematic diagram of the tilting component of this utility model; Figure 7 This utility model Figure 4 Enlarged diagram of part A in the middle; Figure 8 This is a three-dimensional schematic diagram of part of the internal structure of this utility model; Figure 9 This is a three-dimensional schematic diagram of the internal structure of the slag discharge and dewatering mechanism of this utility model.

[0014] As shown in the figure: 1-Support frame, 2-Sulfidation reaction mixer, 3-Gypsum slag dewatering machine, 4-Arsenic removal reaction mixer, 5-Flocculated reaction sedimentation tank, 6-Clear water tank, 7-Sodium hydrosulfide tank, 8-Reagent tank, 9-Flocculant tank, 10-Dosing device, 11-Treatment water pump, 12-Second motor, 13-Heating circulation pump, 14-Fifth motor, 15-Wastewater inlet, 16-Third motor, 17-Sulfidation stirring rod, 18-First pH detector, 19-First conduit, 20-Second conduit, 21-Third conduit, 22-Fourth motor, 23-Second pH detector, 24-Heating tank, 25-Heating pipe, 26-Sludge discharge cylinder, 27-Sludge discharge plate, 28 29-Clear water outlet, 30-Sedimentation cavity, 31-Sludge hopper, 32-Transmission chamber, 33-Effluent weir, 34-Sliding block, 35-First gear, 36-Second gear, 37-Tilting frame, 38-Rotating rod, 39-Gypsum slag collection hopper, 40-Rotating shaft, 41-Helical blade, 42-Slag outlet, 43-Filter cylinder, 44-First motor, 45-Arsenic removal stirring rod, 46-Flocculation stirring rod, 47-Transmission rod, 48-First bevel gear, 49-Second bevel gear, 50-Filter hole, 51-Water distribution top block, 52-Support platform, 53-Helical bottom protrusion, 54-Helical top baffle, 55-Guide rail, 56-Third pH detector. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-9 The present invention will be further described in detail below: This utility model discloses a high-efficiency acid wastewater sludge discharge mechanism and an arsenic removal treatment device, such as... Figure 1 , Figure 4 As shown, it includes: a support frame 1, a slag discharge and dewatering mechanism, and a gypsum slag dewatering machine 3, which is fixedly connected to the support frame 1. The side wall of the gypsum slag dewatering machine 3 is provided with a first conduit 19 and a second conduit 20. The first conduit 19 and the second conduit 20 are connected to the inside of the gypsum slag dewatering machine 3. The first conduit 19 is used to introduce wastewater after the sulfidation reaction, and the second conduit 20 is used to discharge wastewater after the gypsum slag dewatering. The slag discharge and dewatering mechanism is rotatably installed inside the gypsum slag dewatering machine 3. It includes a slag separating component and a slag discharge component. The slag separating component separates gypsum slag and wastewater inside the gypsum slag dewatering machine 3 so that the slag discharge component can discharge the gypsum slag.

[0016] In this embodiment, by adding a slag discharge and dewatering mechanism, the gypsum slag generated during the process of removing sulfate and other impurity ions from wastewater by rapid mechanical stirring of sodium hydrosulfide can be separated from the wastewater and discharged in a timely manner. This avoids the accumulation of gypsum slag inside the equipment, which affects the treatment efficiency. The slag separation component can dewater and separate the wastewater entering the gypsum slag dewatering machine 3, so that the arsenic wastewater and gypsum slag are separated. This allows the gypsum slag to be continuously and stably discharged through the slag discharge component, effectively reducing the residence time of gypsum slag inside the equipment, avoiding a decrease in the treatment efficiency and quality of the wastewater, reducing the risk of wear and tear on the equipment, and thus ensuring the stable operation of the arsenic removal treatment of the acid wastewater.

[0017] like Figure 1 , Figure 3 , Figure 7 , Figure 9 As shown, the slag separation assembly includes: a first motor 44, a rotating shaft 40, a spiral blade 41, and a filter barrel. The first motor 44 is fixedly connected to the bottom of the gypsum slag dewatering machine 3; the rotating shaft 40 is fixedly connected to the output end of the first motor 44; the spiral blade 41 is fixedly connected to the outer wall of the rotating shaft 40, and the spiral blade 41 is arranged along the outer diameter of the rotating shaft 40; the filter barrel 43 is fixedly connected to the top and bottom walls of the gypsum slag dewatering machine 3, and there is a gap between the spiral blade 41 and the inner wall of the filter barrel 43, through which gypsum slag and wastewater fall into the bottom of the gypsum slag dewatering machine 3. The slag discharge assembly includes: a slag discharge outlet 42 and a water-dividing top block 51. The slag discharge outlet 42 is fixedly connected to the side wall of the gypsum slag dewatering machine 3; the water-dividing top block 51 is fixedly connected to the side wall of the slag discharge outlet 42 and is installed inside the filter cylinder 43. In this embodiment, by adding a slag separation component and a slag discharge component, sodium hydrosulfide is rapidly removed from the wastewater by mechanical stirring to remove impurity ions such as sulfate, thereby producing gypsum slag. The gypsum slag and arsenic wastewater enter the gypsum slag dewatering machine 3 through the first conduit 19, are guided to the top of the water separation block 51, and flow to the bottom of the gypsum slag dewatering machine 3, where they settle. The treatment water pump 11 on the second conduit 20 is started, and under the action of the filter cylinder 43, the gypsum slag is retained in the filter cylinder 43. Then, the first motor 44 is started, causing the rotating shaft 40 to rotate, driving the spiral blades 41. Under the action of the filter holes 50, the gypsum slag is driven to the spiral top baffle 54 through the spiral bottom protrusion 53, so that the gypsum slag is discharged from the slag discharge outlet 42 under the action of centrifugal force, further ensuring the continuity and stability of slag discharge.

[0018] like Figure 7 , Figure 9 As shown, a spiral top stop block 54 is fixedly connected to the top of the spiral blade 41, and a spiral bottom protrusion 53 is fixedly connected to the bottom of the spiral blade 41. In this embodiment, by adding a spiral top baffle 54 and a spiral bottom protrusion 53, the gypsum slag at the bottom can better enter the spiral blades 41 for separation from the wastewater, thereby displacing it onto the spiral top baffle 54 and then discharging it from the slag outlet 42 under the action of centrifugal force.

[0019] like Figure 9 As shown, the filter cylinder 43 and the spiral blade 41 have filter holes 50; In this embodiment, by increasing the filter holes 50, the gypsum residue is retained in the filter cylinder 43 and discharged by the spiral blades 41.

[0020] like Figure 7 As shown, the spiral bottom protrusion 53 is attached to the inner side wall of the filter barrel, and the spiral top baffle 54 is attached to the side wall of the water-dividing top block 51.

[0021] In this embodiment, by adding a spiral bottom protrusion 53 to fit the filter bucket, the gypsum slag at the edge can also enter the spiral blade 41. Furthermore, by having the spiral top baffle 54 fit the side wall of the water-dividing top block 51 to prevent the gypsum slag from falling out between the spiral top baffle 54 and the water-dividing top block 51, the gypsum slag can be accurately discharged from the slag outlet 42, thereby increasing stability and efficiency.

[0022] like Figure 2 , Figure 6 As shown, it also includes: a tilting mechanism, which is installed on one side of the gypsum slag dewatering machine 3; The tilting mechanism includes: a guide rail 55, a slider 34, a tilting frame 37, a gypsum slag collection hopper 39, a tilting rotating rod 38, a through hole, a second motor 12, and a second gear 36. The guide rail 55 is fixedly connected to the side wall of the support frame 1; the slider 34 is slidably connected to the side wall of the guide rail 55; the tilting frame 37 is fixedly connected to the side wall of the slider 34; the gypsum slag collection hopper 39 is disposed on the tilting frame 37; the tilting rotating rod 38 is rotatably connected to the side wall of the tilting frame 37; the tilting frame 37 has a through hole, through which the tilting rotating rod 38 passes and is rotatably connected, and a first gear 35 is fixedly connected to a section of the tilting rotating rod 38 passing through the through hole; the second motor 12 is fixedly connected to the side wall of the support frame 1; the second gear 36 is fixedly connected to the output end of the second motor 12, and the second gear 36 meshes with the first gear 35. In this embodiment, by adding a tilting mechanism, the slider 34 slides to one end of the guide rail 55 near the gypsum slag dewatering machine 3, driving the tilting frame 37 and the gypsum slag collection hopper 39, so that the gypsum slag collection hopper 39 is adjusted to a suitable position, so that the gypsum slag discharged from the slag discharge outlet 42 is discharged into the gypsum slag collection hopper 39. Then, the slider 34 slides to one end away from the gypsum slag dewatering machine 3, and then the second motor 12 is started to drive the second gear 36 on the output end, driving the first gear 35 meshing with it to rotate, thereby driving the rotating rod 38 and the gypsum slag collection hopper 39 to rotate, so that the gypsum slag in the gypsum slag collection hopper 39 tilts into the container for collection, effectively avoiding workers coming into contact with the gypsum slag, improving the automation of the overall equipment operation, and ensuring that the entire gypsum slag dewatering and collection process is more continuous and efficient.

[0023] like Figure 1 , Figure 4 As shown, it also includes: a wastewater inlet 15, a third motor 16, a vulcanization reaction mixer 2, a vulcanization stirring rod 17, a first pH detector 18, and a vulcanization reaction mechanism, which is set at the end of the first conduit 19; the vulcanization reaction mixer 2 is fixedly connected to the side wall of the support frame 1; the wastewater inlet 15 is fixedly connected to the side wall of the vulcanization reaction mixer 2; the third motor 16 is fixedly connected to the top of the vulcanization reaction mixer 2; the vulcanization stirring rod 17 is fixedly connected to the output end of the second motor 12; and the first pH detector 18 is set on the side wall of the vulcanization reaction mixer 2, with the monitoring end of the first pH detector 18 passing through the side wall of the vulcanization reaction mixer 2.

[0024] In this embodiment, by adding a sulfidation reaction mechanism, arsenic-containing acidic wastewater is injected into the sulfidation reaction mixer 2 through the wastewater inlet 15, and calcium hydroxide in the reagent tank 8 is guided by the dosing device 10. The third motor 16 is started, so that the output end drives the sulfidation stirring rod 17 to stir. When the value of the first pH detector 18 reaches 12, sodium hydrosulfide in the sodium hydrosulfide tank 7 is guided into the sulfidation reaction mixer 2 through the dosing device 10. Then the third motor 16 is started again, so that the sodium hydrosulfide removes sulfate and other impurity ions from the wastewater through mechanical and rapid stirring, thereby producing gypsum slag, laying the foundation for subsequent treatment and effectively ensuring the efficiency and quality of subsequent gypsum slag dewatering treatment.

[0025] like Figure 1 , Figure 4 As shown, the above-mentioned wastewater sludge discharge mechanism is used; The arsenic removal treatment device includes: an arsenic removal reaction mixer 4 and an arsenic removal reaction mechanism. The arsenic removal reaction mixer 4 is fixedly connected to the side wall of the support frame 1. The second conduit 20 is connected to the arsenic removal reaction mixer 4. A treatment water pump 11 is installed on the side wall of the second conduit 20. A third conduit 21 is installed at the bottom of the arsenic removal reaction mixer 4. The third conduit 21 is connected to the inside of the arsenic removal mixer. The arsenic removal reaction mechanism is located inside the arsenic removal mixer and includes an arsenic removal stirring component and a heating reaction component. The arsenic removal stirring component is used to treat the wastewater to be arsenic removed introduced by the second conduit 20 so that the heating reaction component can be heated.

[0026] In this embodiment, by adding an arsenic removal reaction mechanism, the arsenic removal reaction mixer 4 receives the arsenic-removing wastewater after sulfidation reaction treatment through the second conduit 20 under the action of the treatment water pump 11. The arsenic removal stirring component is started to stir the wastewater, and at the same time, the heating reaction component starts to work to heat the stirred wastewater. This allows the arsenic ions in the wastewater to fully contact and chemically react with the subsequently added arsenic removal agent under suitable temperature and stirring conditions, forming a precipitate of insoluble arsenic compounds. This lays the foundation for the subsequent precipitation reaction process and effectively improves the arsenic removal efficiency and stability in the wastewater.

[0027] like Figure 4 , Figure 5 , Figure 8 As shown, the arsenic removal stirring assembly includes: an arsenic removal reaction mixer 4, a fourth motor 22, an arsenic removal stirring rod 45, and a second pH detector 23. The arsenic removal reaction mixer 4 is fixedly connected to the side wall of the support frame 1; the fourth motor 22 is fixedly connected to the top of the arsenic removal reaction mixer 4; the arsenic removal stirring rod 45 is fixedly connected to the output end of the fourth motor 22; the second pH detector 23 is set on the side wall of the arsenic removal reaction mixer 4, and the monitoring end of the second pH detector 23 passes through the side wall of the arsenic removal reaction mixer 4. In this embodiment, by adding a fourth motor 22, the arsenic removal stirring rod 45 at the output end is fully stirred. The value of the second pH detector 23 is observed to reach 10. Then, the arsenic removal agent in the reagent chamber 8 is guided into the arsenic removal reaction mixer 4 through the dosing device 10. Then, the fourth motor 22 is started to fully stir, achieving a full fusion reaction, ensuring a stable output of arsenic slag, and further ensuring the foundation for subsequent processes.

[0028] like Figure 5 , Figure 8 As shown, the heating reaction assembly includes: a heating chamber 24, a heating tube 25, and a heating circulation pump 13. The heating chamber 24 is fixedly connected to the outer wall of the arsenic removal reaction mixer 4; the heating tube 25 is disposed inside the heating chamber 24; and the heating circulation pump 13 is fixedly connected to the outer wall of the heating chamber 24.

[0029] In this embodiment, by adding a heating circulation pump 13, the heating tube 25 in the heating chamber 24 can be adjusted to a suitable temperature for the reaction between the reagent and the arsenic wastewater, thereby increasing the efficiency of the arsenic removal reaction.

[0030] Figure 5 , Figure 8As shown, the heating tube 25 is spirally arranged along the radial direction of the arsenic removal reaction mixer 4, and both ends of the heating tube 25 are fixedly installed at the output and input ends of the heating circulation pump 13.

[0031] In this embodiment, by adding fixed installations at both ends of the heating pipe 25 to the output and input ends of the heating circulation pump 13, the heat medium in the heating chamber 24 can form a stable circulation loop between the heating pipe 25 and the heating circulation pump 13. This ensures that the heating pipe 25 continuously provides uniform and stable heat to the mixture of reagent and arsenic wastewater inside the arsenic removal reaction mixer 4, avoiding the impact of local temperature differences on the sufficiency of the arsenic removal reaction, and further ensuring that the arsenic removal reaction is carried out efficiently under suitable temperature conditions.

[0032] like Figure 4 , Figure 5 , Figure 8 As shown, it also includes a sedimentation and sludge removal mechanism, which includes: a flocculent reaction sedimentation tank 5, a clear water outlet 29, an outlet weir 33, and a clear water pool 6. The flocculent reaction sedimentation tank 5 is fixedly installed at one end of the third conduit 21 and has a sedimentation cavity 30. The clear water outlet 29 is fixedly connected to the side wall of the flocculent reaction sedimentation tank 5. The outlet weir 33 is set on the inner side wall of the flocculent reaction sedimentation tank 5. The clear water pool 6 is fixedly connected to the end of the clear water outlet 29 away from the flocculent reaction sedimentation tank 5.

[0033] In this embodiment, by adding a sedimentation and sludge discharge mechanism, wastewater is guided through the third conduit 21 into the flocculent reaction sedimentation tank 5, and calcium hydroxide in the dosing device 10 is guided into the dosing tank 8. The fifth motor 14 is activated, causing the output transmission rod 47 to drive the second bevel gear 49, which in turn drives the first bevel gear 48 meshing with it in the transmission chamber 32, causing it to drive the flocculation stirring rod 46 to stir. The third pH detector 56 is observed to reach a value of 9 before... The dosing device 10 guides the flocculant and coagulant in the flocculant tank 9, thereby ensuring thorough mixing between the agent and the wastewater. The sludge is separated into mud and water through natural sedimentation. The sludge in the sludge hopper 31 is pushed into the sludge discharge pipe 28 by the sludge discharge plate 27 in the sludge hopper 31 through the output end of the sludge discharge cylinder 26. The clear liquid at the top of the flocculent reaction sedimentation tank 5 flows from the effluent weir 33 into the clear water outlet 29, and then into the clear water tank 6 through the clear water outlet 29, further ensuring the stability and efficiency of the flocculation and sedimentation reaction.

[0034] like Figure 4 , Figure 5 , Figure 8 As shown, the sludge discharge mechanism also includes a drive assembly and a sludge discharge assembly; The drive assembly includes: a fifth motor 14, a transmission chamber 32, a transmission rod 47, a first bevel gear 48, a flocculation stirring rod 46, and a second bevel gear 49. The fifth motor 14 is fixedly installed on the outer wall of the flocculent reaction sedimentation tank 5; the transmission chamber 32 is fixedly connected to the inner wall of the flocculent reaction sedimentation tank 5; a third pH detector 56 is installed on the side wall of the flocculent reaction sedimentation tank 5, with its monitoring end passing through the side wall of the flocculent reaction sedimentation tank 5; the transmission rod 47 is fixedly connected to the output end of the fifth motor 14, and passes through the side wall of the transmission chamber 32; the first bevel gear 48 is fixedly connected to the end of the transmission rod 47 that passes through the transmission chamber 32; the flocculation stirring rod 46 is rotatably connected to two opposite inner walls of the flocculent reaction sedimentation tank 5, and passes through the side wall of the transmission chamber 32; the second bevel gear 49 is fixedly connected to the end of the flocculation stirring rod 46 that passes through the transmission chamber 32; the first bevel gear 48 and the second bevel gear 49 are meshed inside the transmission chamber 32. The sludge discharge assembly includes: a sludge hopper 31, a sludge discharge cylinder 26, a sludge discharge plate 27, and a sludge discharge pipe 28. The sludge hopper 31 is fixedly connected to the bottom of the flocculent reaction sedimentation tank 5; the sludge discharge cylinder 26 is fixedly connected to the outer wall of the sludge hopper 31; the sludge discharge plate 27 is fixedly connected to the output end of the sludge discharge cylinder 26 and is in contact with the inner wall of the sludge hopper 31; and the sludge discharge pipe 28 is fixedly connected to the outer wall of the sludge hopper 31. In this embodiment, by adding a drive assembly and a sludge discharge assembly, the flocculation stirring rod 46 can be driven by the fifth motor 14 and rotate stably through the meshing transmission of the transmission rod 47, the first bevel gear 48 and the second bevel gear 49, to fully stir the water in the flocculation reaction sedimentation tank 5, promoting the mixing reaction of impurities and flocculants in the water to form larger flocs. At the same time, when the flocs settle to the sludge hopper 31, the sludge discharge cylinder 26 can drive the sludge discharge plate 27 to move along the inner wall of the sludge hopper 31, pushing the sludge to the sludge discharge pipe 28 for discharge, effectively improving the stirring efficiency and sludge discharge effect in the flocculation reaction sedimentation process, and ensuring the continuity and stability of water treatment.

[0035] like Figure 2 , Figure 3 As shown, it also includes: a storage and dosing mechanism, which is installed on the side wall of the support frame; The storage and dosing mechanism includes: a support platform 52, a sodium hydrosulfide tank 7, a reagent tank 8, a flocculant tank 9, and a dosing device 10. The support platform 52 is located inside the support frame 1. The sodium hydrosulfide tank 7, reagent tank 8, and flocculant tank 9 are all fixedly connected to the top of the support platform 52. The dosing device 10 is fixedly connected to the side wall of the support frame 1. The dosing device 10 is connected to the sodium hydrosulfide tank 7, reagent tank 8, and flocculant tank 9 through pipes. The dosing device 10 is also connected to the sulfidation reaction mixer 2, the arsenic removal reaction mixer 4, and the flocculent reaction sedimentation tank 5 through pipes.

[0036] In this embodiment, by adding a storage and dosing mechanism, the sodium hydrosulfide tank 7, the reagent tank 8, and the flocculant tank 9 can independently store the reagents required for the sulfidation reaction, the arsenic removal reaction, and the flocculation reaction, respectively, avoiding cross-contamination between different reagents. At the same time, the dosing device 10 can accurately and quantitatively deliver the corresponding reagents to the sulfidation reaction mixer 2, the arsenic removal reaction mixer 4, and the flocculation reaction sedimentation tank 5 through pipelines according to the process requirements of each stage of water treatment. This realizes the automation and precise control of reagent addition, effectively improves the utilization efficiency of reagents, ensures the full progress of each chemical reaction, and thus improves the overall water treatment effect.

[0037] The implementation principle of this utility model embodiment is as follows: First, arsenic-containing acidic wastewater is injected into the sulfurization reaction mixer 2 through the wastewater inlet 15, and calcium hydroxide in the reagent tank 8 is guided through the dosing device 10. The third motor 16 is started, so that the output end drives the sulfurization stirring rod 17 to stir. The value of the first pH detector 18 is observed to reach 12. Then, sodium hydrosulfide in the sodium hydrosulfide tank 7 is guided into the sulfurization reaction mixer 2 through the dosing device 10. Then the third motor 16 is started again, so that the sodium hydrosulfide removes sulfate and other impurity ions in the wastewater through mechanical and rapid stirring, thereby causing gypsum residue to be produced. Secondly, the gypsum slag and arsenic wastewater enter the gypsum slag dewatering machine 3 through the first conduit 19, are guided to the top of the water distribution block 51, and flow to the bottom of the gypsum slag dewatering machine 3, where they settle. The treatment water pump 11 on the second conduit 20 is started, and under the action of the filter cylinder 43, the gypsum slag is kept in the filter cylinder 43. Then the first motor 44 is started, which makes the rotating shaft 40 rotate, driving the spiral blades 41. Under the action of the filter holes 50, the gypsum slag is driven to the spiral top block 54 through the spiral bottom protrusion 53, so that the gypsum slag is discharged from the slag discharge outlet 42 under the action of centrifugal force. Next, the slider 34 slides to the end of the guide rail 55 near the gypsum slag dewatering machine 3, drives the tilting frame 37 and drives the gypsum slag collection hopper 39, so that the gypsum slag collection hopper 39 is adjusted to a suitable position, so that the gypsum slag discharged from the slag discharge outlet 42 is discharged into the gypsum slag collection hopper 39. Then, the slider 34 slides to the end away from the gypsum slag dewatering machine 3, and then the second gear 36 on the output end of the second motor 12 is started, which drives the first gear 35 meshing with it to rotate, thereby driving the rotating rod 38 and the gypsum slag collection hopper 39 to rotate, so that the gypsum slag in the gypsum slag collection hopper 39 is tilted into the container for collection. Next, under the action of the water pump 11 on the second conduit 20, the arsenic wastewater flows into the arsenic removal reaction mixer 4. Then, the calcium hydroxide in the reagent chamber 8 is added to the arsenic removal reaction mixer 4 through the dosing device 10. The fourth motor 22 is started to make the arsenic removal stirring rod 45 at the output end fully stir. At the same time, the heating circulation pump 13 is started to make the reagent in the arsenic removal reaction mixer 4 react quickly with the arsenic wastewater through the heating pipe 25 in the heating chamber 24. The value of the second pH detector 23 is observed to reach 10. Then, the arsenic removal agent in the reagent chamber 8 is guided into the arsenic removal reaction mixer 4 through the dosing device 10. Then, the fourth motor 22 is started to fully stir, so that arsenic residue is obtained at the bottom. Then, the wastewater is guided into the flocculent reaction sedimentation tank 5 through the third conduit 21, and calcium hydroxide in the agent tank 8 is guided into the dosing device 10. The fifth motor 14 is started, which drives the second bevel gear 49 driven by the output transmission rod 47. This causes the second bevel gear 49 to drive the first bevel gear 48 meshing with it in the transmission tank 32, and causes it to drive the flocculation stirring rod 46 to stir. The value of the third pH detector 56 is observed to reach 9. Then, the heavy precipitator and coagulant aid in the flocculant tank 9 are added through the dosing device 10, so that the agent and wastewater are fully stirred. Finally, mud and water are separated by natural sedimentation. The sludge in the sludge hopper 31 is pushed into the sludge discharge pipe 28 by the sludge discharge plate 27 in the sludge hopper 31 through the output end of the sludge discharge cylinder 26. The clear water at the top of the flocculent reaction sedimentation tank 5 flows into the clear water outlet 29 from the effluent weir 33, and then flows into the clear water pool 6 through the clear water outlet 29.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency acid wastewater sludge discharge mechanism, characterized in that, include: Support frame (1); The gypsum slag dewatering machine (3) is fixedly connected to the support frame (1). The side wall of the gypsum slag dewatering machine (3) is provided with a first conduit (19) and a second conduit (20). The first conduit (19) and the second conduit (20) are connected to the inside of the gypsum slag dewatering machine (3). The first conduit (19) is used to introduce wastewater after sulfidation reaction, and the second conduit (20) is used to discharge wastewater after gypsum slag dewatering. The slag discharge and dewatering mechanism is rotatably installed inside the gypsum slag dewatering machine (3), including a slag separation component and a slag discharge component. The slag separation component separates gypsum slag and wastewater inside the gypsum slag dewatering machine (3) so that the slag discharge component discharges gypsum slag.

2. The efficient acid wastewater sludge discharge mechanism according to claim 1, characterized in that, The slag separation assembly includes: a first motor (44), a rotating shaft (40), spiral blades (41), and a filter cylinder (43). The first motor (44) is fixedly connected to the bottom of the gypsum residue dewatering machine (3); A rotating shaft (40) is fixedly connected to the output end of the first motor (44); The helical blade (41) is fixedly connected to the outer wall of the rotating shaft (40), and the helical blade (41) is arranged along the outer diameter of the rotating shaft (40); The filter cylinder (43) is fixedly connected to the top and bottom walls of the gypsum slag dewatering machine (3), and there is a gap between the spiral blade (41) and the inner wall of the filter cylinder (43). The slag discharge assembly includes: The slag discharge outlet (42) is fixedly connected to the side wall of the gypsum slag dewatering machine (3); The water-dividing top block (51) is fixedly connected to the side wall of the slag discharge outlet (42), and the water-dividing top block (51) is set inside the filter cylinder (43).

3. The efficient acid wastewater sludge discharge mechanism according to claim 2, characterized in that, The top of the spiral blade (41) is fixedly connected to a spiral top block (54), and the bottom of the spiral blade (41) is fixedly connected to a spiral bottom protrusion (53). The filter cylinder (43) and the spiral blade (41) have filter holes (50). The spiral bottom protrusion (53) is attached to the inner side wall of the filter cylinder (43), and the spiral top block (54) is attached to the side wall of the water-dividing top block (51).

4. The efficient acid wastewater sludge discharge mechanism according to claim 3, characterized in that, Also includes: A tilting mechanism is provided on one side of the gypsum slag dewatering machine (3); The tipping mechanism includes: The guide rail (55) is fixedly connected to the side wall of the support frame (1); The slider (34) is slidably connected to the side wall of the guide rail (55); The tilting frame (37) is fixedly connected to the side wall of the slider (34); A gypsum residue collection hopper (39) is installed on the tilting frame (37); The tilting rotating rod (38) is rotatably connected to the side wall of the tilting frame (37); The tilting frame (37) has a through hole, and the tilting rotating rod (38) passes through the through hole and is rotatably connected to it. A first gear (35) is fixedly connected to a section of the tilting rotating rod (38) that passes through the through hole. The second motor (12) is fixedly connected to the side wall of the support frame (1); The second gear (36) is fixedly connected to the output end of the second motor (12), and the second gear (36) meshes with the first gear (35).

5. A high-efficiency acid wastewater sludge discharge mechanism according to claim 1, characterized in that, Also includes: The vulcanization reaction mechanism is located at the end of the first conduit (19); The vulcanization reaction mixer (2) is fixedly connected to the side wall of the support frame (1); Wastewater inlet (15) is fixedly connected to the side wall of the sulfurization reaction mixer (2); The third motor (16) is fixedly connected to the top of the vulcanization reaction mixer (2); The vulcanizing stirring rod (17) is fixedly connected to the output end of the third motor (16); The first pH detector (18) is set on the side wall of the vulcanizing reaction mixer (2), and the monitoring end of the first pH detector (18) passes through the side wall of the vulcanizing reaction mixer (2).

6. An arsenic removal treatment device, characterized in that: The efficient acid wastewater sludge discharge mechanism as described in any one of claims 1-5 is adopted; The arsenic removal treatment device includes: The arsenic removal reaction mixer (4) is fixedly connected to the side wall of the support frame (1). The second conduit (20) is connected to the arsenic removal reaction mixer (4). A treatment water pump (11) is provided on the side wall of the second conduit (20). A third conduit (21) is provided at the bottom of the arsenic removal reaction mixer (4). The third conduit (21) is connected to the inside of the arsenic removal reaction mixer (4). The arsenic removal reaction mechanism is located inside the arsenic removal reaction mixer (4) and includes an arsenic removal stirring component and a heating reaction component. The arsenic removal stirring component is used to treat the wastewater to be removed from the second conduit (20) so that the heating reaction component can be heated.

7. An arsenic removal treatment device according to claim 6, characterized in that, The arsenic removal stirring assembly includes: Arsenic removal reaction mixer (4) is fixedly connected to the side wall of the support frame (1); The fourth motor (22) is fixedly connected to the top of the arsenic removal reaction mixer (4); The arsenic removal stirring rod (45) is fixedly connected to the output end of the fourth motor (22); The second pH detector (23) is installed on the side wall of the arsenic removal reaction mixer (4), and the monitoring end of the second pH detector (23) passes through the side wall of the arsenic removal reaction mixer (4); The reaction components include: The heating chamber (24) is fixedly connected to the outer wall of the arsenic removal reaction mixer (4); A heating element (25) is disposed inside the heating chamber (24); The heating circulation pump (13) is fixedly connected to the outer wall of the heating chamber (24). The heating pipe (25) is spirally arranged along the outer diameter of the arsenic removal reaction stirrer (4). The two ends of the heating pipe (25) are fixedly installed with the output end and input end of the heating circulation pump (13).

8. An arsenic removal treatment device according to claim 6, characterized in that, It also includes a sedimentation and sludge removal mechanism, which includes: A flocculent reaction sedimentation tank (5) is fixedly installed at one end of the third conduit (21), and the flocculent reaction sedimentation tank (5) has a sedimentation cavity (30). The clear water outlet (29) is fixedly connected to the side wall of the flocculent reaction sedimentation tank (5); The effluent weir (33) is set on the inner wall of the flocculent reaction sedimentation tank (5); The clear water tank (6) is fixedly connected to the end of the clear water outlet (29) away from the flocculent reaction sedimentation tank (5).

9. An arsenic removal treatment device according to claim 8, characterized in that, The sludge discharge mechanism also includes a drive assembly and a sludge discharge assembly; The driving component includes: The fifth motor (14) is fixedly installed on the outer wall of the flocculent reaction sedimentation tank (5); The transmission chamber (32) is fixedly connected to the inner wall of the flocculent reaction sedimentation tank (5); The third pH detector (56) is installed on the side wall of the flocculent reaction sedimentation tank (5), and the monitoring end of the third pH detector (56) passes through the side wall of the flocculent reaction sedimentation tank (5); The transmission rod (47) is fixedly connected to the output end of the fifth motor (14), and the transmission rod (47) passes through the side wall of the transmission compartment (32); The first bevel gear (48) is fixedly connected to the end of the transmission rod (47) that passes through the transmission compartment (32); The flocculation stirring rod (46) is rotatably connected to the two opposite inner side walls of the flocculent reaction sedimentation tank (5), and the flocculation stirring rod (46) passes through the side wall of the transmission chamber (32); The second bevel gear (49) is fixedly connected to the end of the flocculation stirring rod (46) that passes through the transmission chamber (32); The first bevel gear (48) and the second bevel gear (49) are meshed and connected inside the transmission compartment (32); The sludge removal assembly includes: The sludge hopper (31) is fixedly connected to the bottom of the flocculent reaction sedimentation tank (5); The sludge discharge cylinder (26) is fixedly connected to the outer wall of the sludge hopper (31); The sludge discharge plate (27) is fixedly connected to the output end of the sludge discharge cylinder (26), and the sludge discharge plate (27) is in contact with the inner wall of the sludge hopper (31); The sludge discharge pipe (28) is fixedly connected to the outer wall of the sludge hopper (31).

10. An arsenic removal treatment device according to claim 9, characterized in that, Also includes: A storage and dosing mechanism is installed on the side wall of the support frame; Storage and dosing facilities include: The support platform (52) is located inside the support frame (1); The sodium hydrosulfide tank (7), the reagent tank (8), and the flocculant tank (9) are all fixedly connected to the top of the support platform (52); The dosing device (10) is fixedly connected to the side wall of the support frame (1). The dosing device (10) is connected to the sodium hydrosulfide tank (7), the reagent tank (8), and the flocculant tank (9) through pipes. The dosing device (10) is also connected to the sulfurization reaction mixer (2), the arsenic removal reaction mixer (4), and the flocculent reaction sedimentation tank (5) through pipes.

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