CN115465934A - Device and method for precipitation treatment of electroplating chromium-containing wastewater discharged industrially - Google Patents
Device and method for precipitation treatment of electroplating chromium-containing wastewater discharged industrially Download PDFInfo
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- CN115465934A CN115465934A CN202211222066.6A CN202211222066A CN115465934A CN 115465934 A CN115465934 A CN 115465934A CN 202211222066 A CN202211222066 A CN 202211222066A CN 115465934 A CN115465934 A CN 115465934A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The invention discloses a device and a method for precipitation treatment of electroplating chromium-containing wastewater discharged industrially, which comprises a stirring device and a feeding device; the lower end of the elastic corrugated pipe is fixedly arranged on the top surface of the settling tank, the top of the elastic corrugated pipe is provided with a plugging part, and an eccentric feeding hole is eccentrically arranged on the plugging part; the annular limiting piece is fixedly arranged on the top surface of the elastic corrugated pipe, and an annular groove is formed in the annular limiting piece; the feeding assembly comprises a conical bin and a vertical extension pipe; an eccentric funnel is arranged in the inner cavity of the vertical extension pipe, and an eccentric discharge hole is formed at the lower end part of the eccentric extension part; the vertical extension pipe is rotatably arranged in the annular groove of the annular limiting part, and the lower end surface of the eccentric extension part is abutted against the upper surface of the plugging part; the height reference positioning assembly comprises a plurality of supporting columns and positioning rings; the top surface of the positioning ring is lower than the bottom surface of the annular limiting part. The invention can accurately control the input amount of the raw materials and has the characteristics of convenient operation and accurate feeding.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to a device and a method for treating industrial discharged electroplating chromium-containing wastewater through precipitation.
Background
Chromium metal is often used during electroplating, so that a plating layer of an electroplated part has high hardness and corrosion resistance, the chromium metal has certain toxicity, and hexavalent chromium metal is easily absorbed by human bodies and causes harm to the health of the human bodies.
Often place waste water in the sedimentation tank among the prior art, react through adding sodium hydroxide and produce the sediment, but because after adding the hydroxide, the pH value risees, need add the hydroxide according to the volume accuracy after, make the pH value about 9, and the device among the prior art can only be put in through artifical directness, make the operation comparatively loaded down with trivial details, and the manual work is difficult to carry out accurate control to the volume of putting, and the hydroxide is poured in the back, can react with the waste water of contact earlier, make the hydroxide difficult to mix the waste water of bottom, make the reaction insufficient, now propose chromium-containing electroplating wastewater precipitation treatment device and method of industrial discharge and solve above problem.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the device and the method for treating the chromium-containing electroplating wastewater deposited in the industrial discharge process, which can accurately control the input amount of raw materials and have the characteristics of convenient operation and accurate feeding.
The invention provides a precipitation treatment device for industrial discharged electroplating chromium-containing wastewater, which comprises a stirring device, wherein the stirring device comprises a support frame and a precipitation tank arranged on the support frame; the top surface of the settling tank is provided with a water inlet and a feed inlet, and the bottom surface of the settling tank is provided with a discharge outlet; still include feeding device, feeding device includes:
the lower end of the elastic corrugated pipe is fixedly arranged on the top surface of the settling tank, the top of the elastic corrugated pipe is provided with a blocking part, an eccentric feeding hole is eccentrically arranged on the blocking part, the lower end of the elastic corrugated pipe forms a discharging hole, and the discharging hole is communicated with the feeding hole;
the annular limiting piece is fixedly installed on the top surface of the elastic corrugated pipe, a through hole is formed in the middle of the annular limiting piece, and an annular groove is formed in the annular limiting piece and located on the periphery of the through hole;
the feeding assembly comprises a conical bin and a vertical extending pipe arranged at the lower part of the conical bin; an eccentric funnel is arranged in the inner cavity of the vertical extension pipe, the eccentric funnel is provided with an eccentric extension part which penetrates out of the lower port of the vertical extension pipe, and an eccentric discharge hole is formed at the lower end part of the eccentric extension part; the vertical extension pipe is rotatably arranged in the annular groove of the annular limiting part, and the lower end surface of the eccentric extension part is abutted against the upper surface of the plugging part; the conical bin can rotate around the axis of the annular limiting piece under the action of external force, so that the eccentric funnel is driven to rotate around the axis of the annular limiting piece, and the eccentric discharging hole is communicated with or disconnected from the eccentric feeding hole;
the height reference positioning assembly comprises a plurality of supporting columns fixedly arranged on the top surface of the settling tank and positioning rings arranged on the top surfaces of the supporting columns; the elastic corrugated pipe is located in the center hole of the positioning ring, and the top surface of the positioning ring is lower than the bottom surface of the annular limiting part in the vertical direction.
In the first aspect of the present invention, as a preferred embodiment, the present invention further includes a spring, the spring is sleeved on the elastic corrugated pipe, a lower end of the spring is connected to the top surface of the settling tank, and an upper end of the spring is connected to the bottom surface of the annular limiting member.
In the first aspect of the present invention, as a preferred embodiment, a turntable is further disposed on an outer side wall of the vertical extension pipe.
In the first aspect of the present invention, as a preferred embodiment, the vertical extension pipe is mounted in the annular groove of the annular retainer through a bearing.
In the first aspect of the present invention, as a preferred embodiment, the method further includes:
the guide assembly is arranged at the upper part of the inner cavity of the settling tank and comprises a conical guide disc, and a conical cavity is formed in the conical guide disc; a first guide pipe extends upwards from the center of the upper part of the conical guide disc along the vertical direction, the upper end of the first guide pipe is fixedly connected with the top of the settling tank, the upper port of the first guide pipe is communicated with the feed inlet, and the lower port of the first guide pipe is communicated with the conical cavity; the lower part of the conical guide disc vertically extends out of a circular groove communicated with the conical cavity; the opening at the bottom surface of the circular groove is rotatably connected with a circular connecting plate, and the lower part of the circular connecting plate extends downwards along the vertical direction and is provided with a plurality of second guide tubes which are uniformly distributed; the second guide tube is communicated with the circular groove, and an upper medicine outlet hole is formed in the bottom wall of the conical cavity;
the stirring mechanism comprises a stirring paddle, a first gear, a second gear and a motor; the stirring paddle comprises a stirring shaft and a blade assembly; one end of the stirring shaft is rotatably arranged on the bottom wall of the treatment tank; the middle part of the stirring shaft is provided with a threaded part, the upper end of the threaded part forms an upward limiting part, and the lower end of the threaded part forms a downward limiting part; the paddle component comprises an annular connecting plate in threaded connection with a threaded part of the stirring shaft, a plurality of uniformly distributed supporting rods extend in the radial direction of the annular connecting plate, and a paddle is arranged in the middle of each supporting rod; the end part of the stirring shaft, which is positioned outside the bottom wall of the treatment tank, is fixedly connected with the first gear; the motor is fixedly arranged on the support frame, the output shaft of the motor is fixedly connected with the second gear, and the second gear is meshed with the first gear; one end of each support rod, which is far away from the stirring shaft, is provided with a vertical insertion pipe, and the lower part of each vertical insertion pipe is provided with a lower medicine outlet; the plurality of vertical inserting pipes are inserted into the plurality of second guide pipes in a one-to-one corresponding mode.
In the first aspect of the present invention, as a preferred embodiment, the number of the vertical insertion tubes is six, the number of the second guide tubes is six, and the number of the support rods is six.
In the first aspect of the present invention, as a preferred embodiment, a top of the stirring shaft is supported on a bottom surface of the conical guide disk.
In the first aspect of the present invention, as a preferred embodiment, the settling tank comprises an open-topped tank body and an upper lid; the upper cover is detachably arranged at the opening at the top of the tank body; the feeding device is arranged on the top surface of the upper cover.
In the first aspect of the present invention, as a preferred embodiment, the guide member is fixedly mounted on a bottom surface of the upper cover.
The second aspect of the invention provides a precipitation treatment method for electroplating chromium-containing wastewater discharged industrially, and the precipitation treatment device for electroplating chromium-containing wastewater in the first aspect of the invention comprises the following steps:
s10) injecting wastewater: firstly, an operator introduces waste water into an inner cavity of a treatment tank through a water inlet;
s20) dosing step: the conical bin is driven to rotate, so that the eccentric funnel is driven to rotate around the axis of the annular limiting piece, and the eccentric discharging hole is disconnected from the eccentric feeding hole; then, sodium hydroxide is gradually added into the conical bin, as the eccentric discharge hole of the eccentric funnel is blocked by the blocking part, the elastic corrugated pipe and the spring are compressed along with the increase of the addition amount of the sodium hydroxide, so that the annular limiting part is driven to gradually descend, when the annular limiting part descends to be flush with the top of the annular positioning ring, the addition of the sodium hydroxide is stopped, and at the moment, the addition amount of the sodium hydroxide is a preset reaction value; the conical bin is driven to rotate in the opposite direction, so that the eccentric funnel is driven to rotate in the opposite direction around the axis of the annular limiting piece, and the eccentric discharging hole is communicated with the eccentric feeding hole; the sodium hydroxide enters the conical cavity through the eccentric discharge hole, the eccentric feed hole, the elastic corrugated pipe, the feed inlet and the first guide pipe in sequence; a part of sodium hydroxide in the conical cavity directly enters the interior of the settling tank through an upper medicine outlet hole of the conical cavity and is mixed with the top wastewater; the other part of sodium hydroxide is uniformly dispersed to the bottom of the conical guide disc and enters the vertical insertion pipe through the second guide pipe;
s30) a mixing step: starting a motor, wherein the motor drives a stirring shaft to rotate, the vertical inserting pipe is inserted into the second guide pipe, and the annular connecting plate is positioned at the ascending limit part at the moment, so that the annular connecting plate drives the supporting rod, the vertical inserting pipe and the annular connecting plate to move downwards along the stirring shaft, the lower medicine outlet hole at the lower part of the vertical inserting pipe can be contacted with the wastewater at the bottom, when the annular connecting plate moves downwards to the descending limit part, the stirring shaft drives the annular connecting plate, the supporting rod, the blades, the vertical inserting pipe and the annular connecting plate to rotate around the stirring shaft together, so that the wastewater is reacted with sodium hydroxide to generate chromium-containing precipitates, and after the reaction is finished, the chromium-containing precipitates can be discharged from a discharge port through the discharge port; the motor is controlled to rotate reversely, so that the annular connecting disc drives the supporting rod, the vertical inserting pipe and the circular connecting plate to move upwards along the stirring shaft until the annular connecting disc moves upwards to the ascending limiting part, and the lower medicine outlet hole in the lower portion of the vertical inserting pipe is located in the second guide pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. the feeding device of the electroplating chromium-containing wastewater precipitation treatment device comprises an elastic corrugated pipe, an annular limiting part, a feeding assembly and a height reference positioning assembly. In the dosing process, the conical bin is driven to rotate, so that the eccentric funnel is driven to rotate around the axis of the annular limiting piece, and the eccentric discharge hole is disconnected from the eccentric feed hole; then add the conical bin with sodium hydroxide gradually in, because eccentric discharge opening of eccentric funnel is by the shutoff of shutoff portion, along with the increase of sodium hydroxide addition for elasticity bellows and spring are compressed, thereby drive annular locating part and descend gradually, when annular locating part descend to with the top parallel and level of annular holding ring, stop the addition sodium hydroxide, the addition of sodium hydroxide is the reaction default this moment. Therefore, the invention can accurately control the input amount of the raw materials and has the characteristics of convenient operation and accurate feeding.
2. According to the invention, the conical bin is driven to rotate in the opposite direction through the matching of the guide assembly and the stirring mechanism, so that the eccentric funnel is driven to rotate in the opposite direction around the axis of the annular limiting piece, and the eccentric discharging hole is communicated with the eccentric feeding hole; the sodium hydroxide sequentially passes through the eccentric discharge hole, the eccentric feed hole, the elastic corrugated pipe, the feed inlet and the first guide pipe to enter the conical cavity; a part of sodium hydroxide in the conical cavity directly enters the interior of the settling tank through an upper medicine outlet hole of the conical cavity and is mixed with the top wastewater; the other part of sodium hydroxide is uniformly dispersed to the bottom of the conical guide disc and enters the vertical insertion pipe through the second guide pipe; the motor is started, the stirring shaft is driven by the motor to rotate, the vertical insertion tube is inserted into the second guide tube, and the annular connecting disc is located at the ascending limit part at the moment, so that the supporting rod, the vertical insertion tube and the annular connecting plate are driven by the annular connecting disc to move downwards along the stirring shaft, a lower medicine outlet hole at the lower part of the vertical insertion tube can be contacted with waste water at the bottom; controlling the motor to rotate reversely, so that the annular connecting disc drives the supporting rod, the vertical inserting tube and the annular connecting plate to move upwards along the stirring shaft until the annular connecting disc moves upwards to the upper limiting part, and the lower medicine outlet hole at the lower part of the vertical inserting tube is positioned in the second guide tube; make the device can add the top and the lower part of waste water respectively with sodium hydroxide for waste water can react with the sodium hydroxide flash mixed, makes the mixing of device effectual.
Drawings
FIG. 1 is a perspective view of an apparatus for treating chromium-containing electroplating wastewater by precipitation according to the present invention
FIG. 2 is a front view of the apparatus for treating chromium-containing electroplating wastewater according to the present invention;
FIG. 3 is a sectional view of the apparatus for treating chromium-containing electroplating wastewater according to the present invention;
FIG. 4 is a schematic view of the structure of the charging device of the present invention;
FIG. 5 is a schematic view of the guiding assembly and the stirring mechanism of the present invention;
FIG. 6 is a schematic diagram of a plating chromium-containing wastewater precipitation treatment apparatus according to the present invention.
In the figure:
11. a support frame; 12. a settling tank; 121. a tank body; 122. an upper cover;
21. an elastic bellows; 211. a plugging section; 212. an eccentric feed port; 22. an annular limiting member; 221. a through hole; 222. an annular groove; 23. a feeding assembly; 231. a conical bin; 232. a vertical extension tube; 233. an eccentric funnel; 2331. an eccentric discharge hole; 24. a height reference positioning assembly; 241. a support column; 242. a positioning ring; 25. a spring; 26. a turntable;
31. a conical guide plate; 311. a conical cavity; 312. a medicine outlet hole is arranged; 32. a first guide tube; 33. a second guide tube; 34. a circular connecting plate; 35. a circular groove;
41. a stirring paddle; 411. a stirring shaft; 412. a circular connecting plate; 413. a support bar; 414. a paddle; 415. a vertical plug pipe; 416. a medicine discharging hole is arranged; 42. a first gear; 43. a second gear; 44. an electric motor.
Detailed Description
The invention is further described with reference to the drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.
In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Referring to fig. 1-6, the present embodiment provides an apparatus for treating chromium-containing electroplating wastewater from industrial discharge, comprising a stirring device and a feeding device;
specifically, the stirring device comprises a support frame 11 and a settling tank 12 arranged on the support frame 11; the top surface of the settling tank 12 is provided with a water inlet and a feed inlet, the bottom surface thereof is provided with a discharge outlet, and the bottom surface thereof is also provided with a water outlet.
Specifically, the charging device comprises an elastic corrugated pipe 21, an annular limiting member 22, a charging assembly 23 and a height reference positioning assembly 24;
further, the lower end of the elastic corrugated pipe 21 is fixedly installed on the top surface of the settling tank 12, the top of the elastic corrugated pipe 21 is provided with a blocking part 211, an eccentric feeding hole 212 is eccentrically arranged on the blocking part 211, and the lower end of the elastic corrugated pipe 21 forms a discharging hole which is communicated with the feeding hole;
further, the annular limiting member 22 is fixedly mounted on the top surface of the elastic corrugated tube 21, a through hole 221 is formed in the middle of the annular limiting member 22, and an annular groove 222 is formed in the annular limiting member 22 at the periphery of the through hole 221;
further, the charging assembly 23 comprises a conical bin 231 and a vertically extending pipe 232 arranged at the lower part of the conical bin 231; an eccentric funnel 233 is arranged in the inner cavity of the vertical extension pipe 232, the eccentric funnel 233 is provided with an eccentric extension part which penetrates out of the lower port of the vertical extension pipe 232, and the lower end part of the eccentric extension part is provided with an eccentric discharge hole 2331; the vertical extension pipe 232 is rotatably mounted in the annular groove 222 of the annular limiting member 22, and the lower end surface of the eccentric extension part abuts against the upper surface of the blocking part 211; the conical bin 231 can rotate around the axis of the annular limiting member 22 under the action of an external force, so as to drive the eccentric funnel 233 to rotate around the axis of the annular limiting member 22, so that the eccentric discharging hole 2331 is communicated with or disconnected from the eccentric feeding hole 212;
further, the height reference positioning assembly 24 includes a plurality of support columns 241 fixedly installed on the top surface of the settling tank 12 and a positioning ring 242 provided on the top surface of the plurality of support columns 241; the elastic bellows 21 is located in the center hole of the positioning ring 242, and the top surface of the positioning ring 242 is lower than the bottom surface of the ring stopper 22 in the vertical direction. Preferably, the height of the positioning ring 242 can be adjusted according to actual needs. In practical application, a reaction preset value of sodium hydroxide is manually weighed in advance, the sodium hydroxide is added into the conical bin 231, the descending position of the annular limiting member 22 is marked, and then the height of the positioning ring 242 is adjusted to be flush with the descending position. Therefore, when the same volume of waste water is treated, manual weighing is not needed, the manual weighing links are reduced, and the device has the advantages of convenience in operation and accurate charging.
On the basis of the above structure, in the dosing process, the conical bin 231 is driven to rotate, and further the eccentric funnel 233 is driven to rotate around the axis of the annular limiting member 22, so that the eccentric discharging hole 2331 is disconnected from the eccentric feeding hole 212; then, the sodium hydroxide is gradually added into the conical bin 231, because the eccentric discharging hole 2331 of the eccentric funnel 233 is blocked by the blocking portion 211, the elastic corrugated pipe 21 and the spring 25 are compressed with the increase of the addition amount of the sodium hydroxide, so that the annular limiting member 22 is driven to gradually descend, when the annular limiting member 22 descends to be flush with the top of the annular positioning ring 242, the addition amount of the sodium hydroxide is a preset reaction value, and the addition amount of the sodium hydroxide is stopped. Therefore, the invention can accurately control the input amount of the raw materials and has the characteristics of convenient operation and accurate feeding.
In the preferred embodiment of the present invention, the present invention further comprises a spring 25, the spring 25 is sleeved on the elastic corrugated pipe 21, the lower end of the spring 25 is connected with the top surface of the settling tank 12, and the upper end thereof is connected with the bottom surface of the ring-shaped limiting member 22. Thus, the elastic supporting function can be better.
In the preferred embodiment of the present invention, the outer sidewall of the vertical extension pipe 232 is further provided with a turntable 26. Therefore, the rotating disc 26 is driven by the staff to drive the conical bin 231 to rotate.
In the preferred embodiment of the present invention, the vertical extension tube 232 is bearing-mounted in the annular groove 222 of the annular retainer 22. Thus, the rotation can be ensured to be smoother.
In a preferred embodiment of the present invention, the method further comprises:
the guiding component is arranged at the upper part of the inner cavity of the settling tank 12 and comprises a conical guiding disc 31, and a conical cavity 311 is formed inside the conical guiding disc 31; a first guide pipe 32 extends upwards from the center of the upper part of the conical guide disc 31 along the vertical direction, the upper end of the first guide pipe 32 is fixedly connected with the top of the sedimentation tank 12, the upper port of the first guide pipe 32 is communicated with the feed inlet, and the lower port of the first guide pipe is communicated with the conical cavity 311; the lower part of the conical guide disc 31 extends vertically to form a circular groove 35 communicated with the conical cavity 311; the bottom opening of the circular groove is rotatably connected with a circular connecting plate 34, and the lower part of the circular connecting plate 34 extends downwards along the vertical direction to be provided with a plurality of second guide tubes 33 which are uniformly distributed; the second guide tube 33 is communicated with the annular groove 35; an upper medicine outlet 312 is arranged on the bottom wall of the conical cavity 311; specifically, the annular connecting plate 34 may be connected to the bottom surface of the annular groove through a bearing ring, or a clamping groove is formed in the bottom surface of the annular groove, and the annular connecting plate 34 is rotatably disposed inside the clamping groove.
The stirring mechanism comprises a stirring paddle 41, a first gear 42, a second gear 43 and a motor 44; the stirring paddle 41 comprises a stirring shaft 411 and a blade assembly; one end of the stirring shaft 411 is rotatably arranged on the bottom wall of the treatment tank; a threaded part is arranged in the middle of the stirring shaft 411, an upward limiting part is formed at the upper end of the threaded part, and a downward limiting part is formed at the lower end of the threaded part; the paddle component comprises an annular connecting plate 412 in threaded connection with a threaded part of the stirring shaft 411, a plurality of uniformly distributed supporting rods 413 extend in the radial direction of the annular connecting plate 412, and a paddle 414 is arranged in the middle of each supporting rod 413; the end part of the stirring shaft 411, which is positioned outside the bottom wall of the treatment tank, is fixedly connected with a first gear 42; the motor 44 is fixedly arranged on the support frame 11, the output shaft of the motor 44 is fixedly connected with a second gear 43, and the second gear 43 is meshed with the first gear 42; one end of each supporting rod 413 far away from the stirring shaft 411 is provided with a vertical insertion pipe 415, and the lower part of the vertical insertion pipe 415 is provided with a lower medicine outlet 416; the plurality of vertical insertion tubes 415 are inserted into the plurality of second guide tubes 33 in a one-to-one correspondence.
On the basis of the structure, the conical bin 231 is driven to rotate in the opposite direction through the matching between the guide assembly and the stirring mechanism, so that the eccentric funnel 233 is driven to rotate in the opposite direction around the axis of the annular limiting part 22, and the eccentric discharging hole 2331 is communicated with the eccentric feeding hole 212; the sodium hydroxide enters the conical cavity 311 through the eccentric discharging hole 2331, the eccentric feeding hole 212, the elastic corrugated pipe 21, the feeding hole and the first guide pipe 32 in sequence; a part of sodium hydroxide in the conical cavity 311 directly enters the interior of the settling tank 12 through the upper drug outlet hole 312 of the conical cavity 311 and is mixed with the top wastewater; the other part of the sodium hydroxide is uniformly dispersed to the bottom of the conical guide disc 31 and enters the vertical insertion pipe 415 through the second guide pipe 33; starting a motor 44, wherein the motor 44 drives a stirring shaft 411 to rotate, and the vertical insertion tube 415 is inserted into the second guide tube 33, and the annular connecting disc is positioned at the upward limiting part at the moment, so that the annular connecting disc drives the supporting rod 413, the vertical insertion tube 415 and the annular connecting plate 34 to move downwards along the stirring shaft 411, a lower medicine outlet hole 416 at the lower part of the vertical insertion tube 415 can be contacted with the waste water at the bottom; the motor 44 is controlled to rotate reversely, so that the annular connecting disc drives the supporting rod 413, the vertical insertion tube 415 and the circular connecting plate 34 to move upwards along the stirring shaft 411 until the annular connecting disc moves upwards to the upper limiting part, and at the moment, the lower medicine outlet hole 416 at the lower part of the vertical insertion tube 415 is positioned in the second guide tube 33; make the device can add the top and the lower part of waste water respectively with sodium hydroxide for waste water can react with the sodium hydroxide flash mixed, makes the mixing of device effectual.
In the preferred embodiment of the present invention, the number of the vertical insertion tubes 415 is six, the number of the second guide tubes 33 is six, and the number of the support rods 413 is six. Therefore, the medicine can be ensured to be more uniform.
In the preferred embodiment of the present invention, the top of the stirring shaft 411 is supported on the bottom surface of the conical guide plate 31. So designed, make (mixing) shaft 411 can play better supporting role to conical guiding disc 31.
In the preferred embodiment of the present invention, the settling tank 12 includes an open-topped tank body 121 and an upper lid 122; the upper cover 122 is detachably installed at the top opening of the can body 121; the charging device is mounted on the top surface of the upper cover 122. In particular, the detachable manner comprises a snap connection or a bolt connection. The guide member is fixedly installed on the bottom surface of the upper cover 122.
Example two
The second embodiment is an improvement based on the first embodiment.
The second embodiment provides a precipitation treatment method for the electroplating chromium-containing wastewater discharged industrially, and the precipitation treatment device for the electroplating chromium-containing wastewater in the first embodiment comprises the following steps:
s10) injecting wastewater: firstly, an operator introduces waste water into an inner cavity of a treatment tank through a water inlet;
s20) dosing step: the conical bin is driven to rotate, so that the eccentric funnel is driven to rotate around the axis of the annular limiting piece, and the eccentric discharging hole is disconnected from the eccentric feeding hole; then, sodium hydroxide is gradually added into the conical bin, as the eccentric discharge hole of the eccentric funnel is blocked by the blocking part, the elastic corrugated pipe and the spring are compressed along with the increase of the addition amount of the sodium hydroxide, so that the annular limiting part is driven to gradually descend, when the annular limiting part descends to be flush with the top of the annular positioning ring, the addition of the sodium hydroxide is stopped, and at the moment, the addition amount of the sodium hydroxide is a preset reaction value; the conical bin is driven to rotate in the opposite direction, so that the eccentric funnel is driven to rotate in the opposite direction around the axis of the annular limiting piece, and the eccentric discharging hole is communicated with the eccentric feeding hole; the sodium hydroxide enters the conical cavity through the eccentric discharge hole, the eccentric feed hole, the elastic corrugated pipe, the feed inlet and the first guide pipe in sequence; a part of sodium hydroxide in the conical cavity directly enters the interior of the settling tank through an upper medicine outlet hole of the conical cavity and is mixed with the top wastewater; the other part of sodium hydroxide is uniformly dispersed to the bottom of the conical guide disc and enters the vertical insertion pipe through the annular groove and the second guide pipe;
s30) mixing: the motor is started, the stirring shaft is driven by the motor to rotate, the vertical insertion tube is inserted into the second guide tube, and the annular connecting disc is located at the ascending limit part at the moment, so that the supporting rod, the vertical insertion tube and the annular connecting plate are driven by the annular connecting disc to move downwards along the stirring shaft, a lower medicine outlet hole at the lower part of the vertical insertion tube can be contacted with waste water at the bottom; the motor is controlled to rotate reversely, so that the annular connecting disc drives the supporting rod, the vertical inserting pipe and the annular connecting plate to move upwards along the stirring shaft until the annular connecting disc moves upwards to the upper limiting part, and the lower medicine outlet hole in the lower part of the vertical inserting pipe is located in the second guide pipe.
The wastewater treatment method can accurately control the input amount of the raw materials, and has the characteristics of convenient operation and accurate charging. Make the device can add the top and the lower part of waste water respectively with sodium hydroxide for waste water can react with the sodium hydroxide flash mixed, makes the mixing of device effectual.
While only certain features and embodiments of the present application have been illustrated and described, many modifications and changes may occur to those skilled in the art without departing substantially from the scope and spirit of the appended claims, for example: variations in the size, dimensions, structure, shape and proportions of the various elements, mounting arrangements, use of materials, colors, orientations, etc.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. The device for precipitation treatment of the electroplating chromium-containing wastewater discharged by industry comprises a stirring device, wherein the stirring device comprises a support frame and a precipitation tank arranged on the support frame; the top surface of the settling tank is provided with a water inlet and a feed inlet, and the bottom surface of the settling tank is provided with a discharge outlet; its characterized in that still includes feeding device, feeding device includes:
the lower end of the elastic corrugated pipe is fixedly arranged on the top surface of the settling tank, the top of the elastic corrugated pipe is provided with a blocking part, an eccentric feeding hole is eccentrically arranged on the blocking part, the lower end of the elastic corrugated pipe forms a discharging hole, and the discharging hole is communicated with the feeding hole;
the annular limiting piece is fixedly mounted on the top surface of the elastic corrugated pipe, a through hole is formed in the middle of the annular limiting piece, and an annular groove is formed in the annular limiting piece and located on the periphery of the through hole;
the feeding assembly comprises a conical bin and a vertical extending pipe arranged at the lower part of the conical bin; an eccentric funnel is arranged in the inner cavity of the vertical extension pipe, the eccentric funnel is provided with an eccentric extension part which penetrates out of the lower port of the vertical extension pipe, and an eccentric discharge hole is formed at the lower end part of the eccentric extension part; the vertical extension pipe is rotatably arranged in the annular groove of the annular limiting part, and the lower end surface of the eccentric extension part is abutted against the upper surface of the plugging part; the conical bin can rotate around the axis of the annular limiting piece under the action of external force, so that the eccentric funnel is driven to rotate around the axis of the annular limiting piece, and the eccentric discharging hole is communicated with or disconnected from the eccentric feeding hole;
the height reference positioning assembly comprises a plurality of supporting columns fixedly arranged on the top surface of the settling tank and positioning rings arranged on the top surfaces of the supporting columns; the elastic corrugated pipe is located in a center hole of the positioning ring, and the top surface of the positioning ring is lower than the bottom surface of the annular limiting part in the vertical direction.
2. The electroplating chromium-containing wastewater precipitation treatment device according to claim 1, further comprising a spring, wherein the spring is sleeved on the elastic corrugated pipe, the lower end of the spring is connected with the top surface of the precipitation tank, and the upper end of the spring is connected with the bottom surface of the annular limiting piece.
3. The electroplating chromium-containing wastewater precipitation treatment device of claim 1, wherein the outer side wall of the vertical extension pipe is further provided with a turntable.
4. The electroplating chromium-containing wastewater precipitation treatment apparatus of claim 1 wherein said vertical extension pipe is mounted in an annular groove of said annular retainer by means of a bearing.
5. The apparatus for treating chromium-containing electroplating wastewater according to claim 1, further comprising:
the guide assembly is arranged at the upper part of the inner cavity of the sedimentation tank and comprises a conical guide disc, and a conical cavity is formed in the conical guide disc; a first guide pipe extends upwards from the center of the upper part of the conical guide disc along the vertical direction, the upper end of the first guide pipe is fixedly connected with the top of the settling tank, the upper port of the first guide pipe is communicated with the feed inlet, and the lower port of the first guide pipe is communicated with the conical cavity; the lower part of the conical guide disc vertically extends out of a circular groove communicated with the conical cavity; the opening at the bottom surface of the circular groove is rotatably connected with a circular connecting plate, and the lower part of the circular connecting plate extends downwards along the vertical direction and is provided with a plurality of second guide tubes which are uniformly distributed; the second guide tube is communicated with the circular groove, and an upper medicine outlet hole is formed in the bottom wall of the conical cavity;
the stirring mechanism comprises a stirring paddle, a first gear, a second gear and a motor; the stirring paddle comprises a stirring shaft and a blade assembly; one end of the stirring shaft is rotatably arranged on the bottom wall of the treatment tank; the middle part of the stirring shaft is provided with a threaded part, the upper end of the threaded part forms an upward limiting part, and the lower end of the threaded part forms a downward limiting part; the paddle component comprises an annular connecting plate in threaded connection with a threaded part of the stirring shaft, a plurality of uniformly distributed supporting rods extend in the radial direction of the annular connecting plate, and a paddle is arranged in the middle of each supporting rod; the end part of the stirring shaft, which is positioned outside the bottom wall of the treatment tank, is fixedly connected with the first gear; the motor is fixedly arranged on the support frame, the output shaft of the motor is fixedly connected with the second gear, and the second gear is meshed with the first gear; one end of each support rod, which is far away from the stirring shaft, is provided with a vertical insertion pipe, and the lower part of each vertical insertion pipe is provided with a lower medicine outlet; the plurality of vertical inserting pipes are inserted into the plurality of second guide pipes in a one-to-one corresponding mode.
6. The electroplating chromium-containing wastewater precipitation treatment device of claim 5, wherein the number of the vertical insertion pipes is six, the number of the second guide pipes is six, and the number of the support rods is six.
7. The apparatus for treating chromium-containing electroplating wastewater according to claim 5, wherein the top of the stirring shaft is supported on the bottom surface of the conical guide plate.
8. The apparatus for treating precipitation of electroplating chromium-containing wastewater according to claim 5, wherein said precipitation tank comprises a tank body with an open top and an upper cover; the upper cover is detachably arranged at the opening at the top of the tank body; the feeding device is arranged on the top surface of the upper cover.
9. The apparatus for treating chromium-containing electroplating wastewater according to claim 8, wherein the guide assembly is fixedly mounted on the bottom surface of the upper cover.
10. The method for treating the precipitation of the electroplating chromium-containing wastewater is characterized by adopting the device for treating the precipitation of the electroplating chromium-containing wastewater as claimed in any one of claims 1 to 9, and specifically comprises the following steps:
s10) injecting wastewater: firstly, an operator introduces waste water into an inner cavity of a treatment tank through a water inlet;
s20) dosing step: the conical bin is driven to rotate, so that the eccentric funnel is driven to rotate around the axis of the annular limiting piece, and the eccentric discharging hole is disconnected from the eccentric feeding hole; then, sodium hydroxide is gradually added into the conical bin, as the eccentric discharge hole of the eccentric funnel is blocked by the blocking part, the elastic corrugated pipe and the spring are compressed along with the increase of the addition amount of the sodium hydroxide, so that the annular limiting part is driven to gradually descend, when the annular limiting part descends to be flush with the top of the annular positioning ring, the addition of the sodium hydroxide is stopped, and at the moment, the addition amount of the sodium hydroxide is a preset reaction value; the conical bin is driven to rotate in the opposite direction, so that the eccentric funnel is driven to rotate in the opposite direction around the axis of the annular limiting piece, and the eccentric discharging hole is communicated with the eccentric feeding hole; the sodium hydroxide enters the conical cavity through the eccentric discharge hole, the eccentric feed hole, the elastic corrugated pipe, the feed inlet and the first guide pipe in sequence; a part of sodium hydroxide in the conical cavity directly enters the interior of the settling tank through an upper medicine outlet hole of the conical cavity and is mixed with the top wastewater; the other part of sodium hydroxide is uniformly dispersed to the bottom of the conical guide disc and enters the vertical insertion pipe through the annular groove and the second guide pipe;
s30) a mixing step: the motor is started, the stirring shaft is driven by the motor to rotate, the vertical insertion tube is inserted into the second guide tube, and the annular connecting disc is located at the ascending limit part at the moment, so that the supporting rod, the vertical insertion tube and the annular connecting plate are driven by the annular connecting disc to move downwards along the stirring shaft, a lower medicine outlet hole at the lower part of the vertical insertion tube can be contacted with waste water at the bottom; the motor is controlled to rotate reversely, so that the annular connecting disc drives the supporting rod, the vertical inserting pipe and the annular connecting plate to move upwards along the stirring shaft until the annular connecting disc moves upwards to the upper limiting part, and the lower medicine outlet hole in the lower part of the vertical inserting pipe is located in the second guide pipe.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116332313A (en) * | 2023-05-29 | 2023-06-27 | 山东优盛轮胎有限公司 | Tire production wastewater treatment equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323960A (en) * | 2007-06-12 | 2008-12-17 | 贵阳铝镁设计研究院 | Purified feeding method and purified feeding apparatus for aluminum electrolysis flue gas |
| CN109364776A (en) * | 2018-10-23 | 2019-02-22 | 常州机电职业技术学院 | powder liquid mixer |
| WO2021031656A1 (en) * | 2019-08-22 | 2021-02-25 | 山东大学 | Composite rotary stirring device and working method thereof |
| CN215586462U (en) * | 2021-04-27 | 2022-01-21 | 天昌国际烟草有限公司三门峡复烤厂 | Distillate acid adding device for preparing nicotine salt from tobacco waste |
-
2022
- 2022-10-08 CN CN202211222066.6A patent/CN115465934B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323960A (en) * | 2007-06-12 | 2008-12-17 | 贵阳铝镁设计研究院 | Purified feeding method and purified feeding apparatus for aluminum electrolysis flue gas |
| CN109364776A (en) * | 2018-10-23 | 2019-02-22 | 常州机电职业技术学院 | powder liquid mixer |
| WO2021031656A1 (en) * | 2019-08-22 | 2021-02-25 | 山东大学 | Composite rotary stirring device and working method thereof |
| CN215586462U (en) * | 2021-04-27 | 2022-01-21 | 天昌国际烟草有限公司三门峡复烤厂 | Distillate acid adding device for preparing nicotine salt from tobacco waste |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116332313A (en) * | 2023-05-29 | 2023-06-27 | 山东优盛轮胎有限公司 | Tire production wastewater treatment equipment |
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