CN115367842B - Electroplating cyanide-containing and heavy metal wastewater biochemical treatment system - Google Patents
Electroplating cyanide-containing and heavy metal wastewater biochemical treatment system Download PDFInfo
- Publication number
- CN115367842B CN115367842B CN202211089661.7A CN202211089661A CN115367842B CN 115367842 B CN115367842 B CN 115367842B CN 202211089661 A CN202211089661 A CN 202211089661A CN 115367842 B CN115367842 B CN 115367842B
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- rod
- electrolysis
- rotating
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- 239000002351 wastewater Substances 0.000 title claims abstract description 41
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000009713 electroplating Methods 0.000 title claims abstract description 12
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 10
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims abstract description 123
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 230000001680 brushing effect Effects 0.000 claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000002955 isolation Methods 0.000 claims description 27
- 238000004804 winding Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000002161 passivation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000005708 Sodium hypochlorite Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012279 drainage procedure Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46119—Cleaning the electrodes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention provides a biochemical treatment system for electroplating wastewater containing cyanide and heavy metal, which comprises the following components: a reaction tank; an iron-carbon micro-electrolysis mechanism; a brushing mechanism; the stirring mechanism is used for brushing the outer surface wall of the iron carbon block in the iron carbon micro-electrolysis mechanism and stirring the wastewater in the reaction tank; the iron-carbon micro-electrolysis mechanism comprises: the iron-carbon micro-electrolysis assemblies are oppositely arranged; and the switching component is used for switching the working states of the two groups of the iron-carbon micro-electrolysis components. According to the invention, the waste water in the reaction tank is stirred by the stirring mechanism; brushing the outer surface wall of the iron carbon block in the iron carbon micro-electrolysis mechanism through the brushing mechanism, and timely removing the passivation film of the outer surface wall of the iron carbon block, thereby improving the treatment effect on wastewater.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a biochemical treatment system for electroplating wastewater containing cyanide and heavy metals.
Background
The electroplating industry is generally divided into cyanide-containing wastewater, chromium-containing wastewater, heavy metal wastewater and acid-base wastewater according to pollutant types, wherein the cyanide-containing chromium-containing wastewater contains extremely toxic cyanide and hexavalent chromium, and the wastewater is discharged to a water body after reaching standards without treatment to cause harm to aquatic organisms.
Chinese patent application No. 201610516273.0 discloses a process for treating cyanide-containing chromium-containing electroplating wastewater, comprising the steps of passing the cyanide-containing chromium-containing electroplating wastewater through an iron-carbon micro-electrolysis reactor; adjusting the pH to 9-11, adding sodium hypochlorite, reacting for 10-60 minutes, controlling the pH to 4-6, reacting for 10-60 minutes, adding a flocculating agent, performing flocculation treatment, and performing precipitation treatment; adjusting the pH value to 10-12, then adding sodium hypochlorite to enable the oxidation-reduction potential of the treated wastewater to be more than 350mV, and reacting for 30-60min; then adding active carbon, and reacting for 10-60min; flocculant was added and then precipitated.
Chinese patent application No. 202021464891.3 discloses an iron-carbon micro-electrolysis reactor comprising a reactor tank, the interior of which is divided from top to bottom into: the clear water zone is a zone between the top of the reactor tank body and the top plate of the reaction tank, and comprises a water outlet pipe which is arranged on the side wall of the reactor tank body and an exhaust hole which is arranged on the top of the reactor tank body; the flocculation area is an area between the porous support plate and the top plate of the reaction box, the reaction box is internally provided with a fiber stuffing box, a fine iron carbon stuffing box, a coarse iron carbon stuffing box and a water distribution aeration box from top to bottom in sequence through a partition plate, and the bottom plate of the water distribution aeration box is fixed on the porous support plate; the sedimentation area is an area between the porous support plate and the bottom of the reactor tank body and comprises a mud hole formed in the bottom of the reactor tank body.
However, the following problems exist in the technical scheme:
after the iron-carbon micro-electrolysis reactor runs for a long time, organic matters are deposited on the ferroelectric electrode to form a passivation film, so that the iron electrode and carbon are prevented from forming a stable primary cell, and if the passivation film is not removed in time, the treatment effect of wastewater is greatly reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a biochemical treatment system for electroplating wastewater containing cyanide and heavy metal, which is characterized in that wastewater in a reaction tank is stirred by a stirring mechanism; brushing the outer surface wall of the iron carbon block in the iron carbon micro-electrolysis mechanism through the brushing mechanism, and timely removing the passivation film of the outer surface wall of the iron carbon block, thereby improving the treatment effect on wastewater.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a biochemical treatment system for electroplating wastewater containing cyanide and heavy metals comprises: a reaction tank; an iron-carbon micro-electrolysis mechanism; a brushing mechanism; the stirring mechanism is used for brushing the outer surface wall of the iron carbon block in the iron carbon micro-electrolysis mechanism and stirring the wastewater in the reaction tank; the iron-carbon micro-electrolysis mechanism comprises: the iron-carbon micro-electrolysis assemblies are oppositely arranged; and the switching component is used for switching the working states of the two groups of the iron-carbon micro-electrolysis components.
The switching assembly includes: the baffle plate is arranged in the reaction tank, and sliding grooves are formed in two sides of the baffle plate; the swinging block is rotatably arranged on the baffle; the sliding rod is arranged in the swinging block in a sliding way; the sliding block is arranged in the sliding groove in a sliding way, the iron-carbon micro-electrolysis assembly is arranged on the sliding block, the rotating sleeve is rotationally arranged on the sliding block, and the rotating sleeve is connected with the tail end of the sliding rod; and the avoiding part is used for preventing interference generated when the iron-carbon micro-electrolysis assembly is switched.
The iron-carbon micro-electrolysis assembly comprises: a housing; the fixed block a is arranged in the center of the shell; the rotating rods are arranged in the shell; the sealing part is arranged on the shell; the transmission part drives the rotating rod to rotate;
the closure includes: the rotating block a is arranged on the shell; the winding shaft is arranged in the rotating block a; the isolation net is wound on the winding shaft; the connecting rod b is arranged on the isolating net, and a sliding chute a is formed in the shell; the sliding block is arranged on the connecting rod b and slides in the chute a; the linear driving piece a is arranged at the top of the reaction tank; the pushing block is arranged at the output end of the linear driving piece a; the linear driving piece b is arranged on the pushing block; the U-shaped clamping block is arranged at the output end of the linear driving part b; and the locking unit is used for locking the position of the connecting rod b.
The transmission part includes: the disc is arranged on the fixed block a; the annular toothed ring is rotationally arranged in the disc; a bevel gear a mounted on the rotating rod; the central shaft is rotationally arranged in the fixed block a; a plurality of groups of bevel gears b are arranged on the central shaft and meshed with the bevel gears a; the gear d is arranged at one end of the central shaft and meshed with the annular toothed ring; the rotary table is arranged on the annular toothed ring, and a straight groove is formed in the rotary table.
The brushing mechanism includes: a brushing assembly; an isolation assembly; after the isolation component isolates and distinguishes the iron carbon blocks in the shell, the brushing component brushes the outer surface walls of the iron carbon blocks in the shell.
The brushing assembly includes: a case body; the fixed block b is arranged in the box body; a moving belt sliding outside the fixed block b; the hairbrush is arranged on the outer side of the moving belt; the transmission shaft a is rotatably arranged in the fixed block b; the gear f is arranged on the transmission shaft a; the clamping block is arranged on the inner side of the moving belt and meshed with the gear f; t-shaped strip, T-shaped strip install in the motion belt is inboard, set up T-shaped groove in the fixed block b, set up in the fixed block b and dodge the groove.
The isolation assembly includes: the protective cover is arranged on one side of the reaction tank; the linear driving piece c is arranged in the protective cover; the motion block is arranged at the output end of the linear driving piece c, and a plurality of groups of sliding grooves b are formed in the shell; the plurality of groups of spacing blocks are arranged on the moving block, and the spacing blocks are inserted into the sliding grooves b; and the rotating part drives the iron carbon block in the shell to rotate.
The rotating part includes: the groove is formed in the spacing block; a plurality of groups of transmission shafts b are arranged in the grooves; the rotating rod is arranged on the transmission shaft b; a gear c mounted on the transmission shaft b and engaged with each other;
the latch unit includes: a center rod a mounted on the housing; the Z-shaped clamping blocks are rotationally arranged on the central rod a, and inclined guide grooves and clamping grooves are formed in the Z-shaped clamping blocks; and the springs a are arranged between the two groups of Z-shaped clamping blocks.
The stirring mechanism comprises: the central rod b is arranged at the bottom of the reaction tank; the rotating block b is arranged at the top of the central rod b; the stirring blocks are arranged on two sides of the rotating block b; the fixed rod is arranged on the rotating block b; a character block a, wherein the character block a is arranged on the fixed rod; the air nozzle is arranged on the rotating block b; the bottom of the fixed block b is provided with a connecting rod a, and the connecting rod a is provided with a character block b.
The avoidance portion includes: the driving rod is arranged on the rotating block a; a gear e mounted on the driving rod; the linear driving piece d is arranged in the reaction tank; the rack plate is arranged at the output end of the linear driving piece d, and a containing groove is formed in the sliding block; the spring b is arranged in the accommodating groove; and the fixing rings are arranged at two ends of the spring b, one fixing ring is arranged in the accommodating groove, and the other fixing ring is arranged on the driving rod.
The invention has the beneficial effects that:
(1) According to the invention, the waste water in the reaction tank is stirred by the stirring mechanism; brushing the outer surface wall of the iron carbon block in the iron carbon micro-electrolysis mechanism through the brushing mechanism, and timely removing the passivation film of the outer surface wall of the iron carbon block, thereby improving the treatment effect on wastewater.
(2) According to the invention, the U-shaped clamping blocks are driven to clamp the connecting rod b through the linear driving piece a and the linear driving piece b, the connecting rod b is driven to move away from the clamping groove, the spring a is compressed under stress, the winding shaft is driven to rotate to wind the isolation net, the isolation net is driven to leave the top of the shell, so that the iron carbon blocks in the shell are exposed, and the follow-up brushing mechanism is convenient to brush the iron carbon blocks in the shell.
(3) According to the invention, the rack plate is driven to move by the linear driving piece d, the gear e is driven to rotate, the iron-carbon micro-electrolysis assembly is further driven to be in a vertical state, interference can not be generated when the two iron-carbon micro-electrolysis assemblies move in opposite directions, and when the iron-carbon micro-electrolysis assembly moves to a designated station, the rack plate is driven to move by the linear driving piece d so as to be disengaged from the gear e, and the iron-carbon micro-electrolysis assembly is restored to be in a horizontal state under the action of the elasticity of the spring b.
(4) According to the invention, the linear driving piece c drives the spacing block to be inserted into the chute b, the spacing block isolates and divides the iron-carbon block in the shell, the spacing block plays an isolating role, and the iron-carbon block is prevented from accumulating in the shell when the brushing mechanism brushes the iron-carbon block.
(5) According to the invention, the iron-carbon micro-electrolysis assembly at the bottom moves downwards, the straight block a is inserted into the straight groove from the bottom, the motor drives the fixed rod to rotate, the turntable and the gear d are driven to rotate, the central shaft is driven to rotate, and the rotating rod is driven to rotate, so that the iron-carbon blocks in the shell are turned over, and hardening between the iron-carbon blocks is prevented.
(6) According to the invention, the working states of the two groups of iron-carbon micro-electrolysis assemblies are switched through the switching assembly, the iron-carbon micro-electrolysis assembly at the bottom is used for treating wastewater, and the brushing mechanism is used for brushing the outer surface wall of the iron-carbon block in the iron-carbon micro-electrolysis assembly at the top, so that the operation of the next switching procedure is facilitated.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal cross-section of the present invention;
FIG. 3 is a schematic diagram of the structure of the iron-carbon micro-electrolysis mechanism of the invention;
FIG. 4 is an enlarged schematic view of the invention at A;
FIG. 5 is a schematic diagram of a switching assembly according to the present invention;
FIG. 6 is a schematic structural diagram of an iron-carbon micro-electrolysis assembly according to the present invention;
FIG. 7 is an enlarged schematic view of the present invention at B;
FIG. 8 is a schematic diagram of a transmission part structure of the present invention;
FIG. 9 is a schematic cross-sectional view of a housing of the present invention;
FIG. 10 is a schematic view of a closure structure of the present invention;
FIG. 11 is an enlarged schematic view of the present invention at C;
FIG. 12 is a schematic view of a U-shaped clamp block according to the present invention;
FIG. 13 is a schematic diagram of the structure of an isolation net according to the present invention;
FIG. 14 is an enlarged schematic view of the invention at D;
FIG. 15 is a schematic view of the relief portion of the present invention;
FIG. 16 is a schematic view of a receiving tank according to the present invention;
FIG. 17 is a schematic view of the structure of the spring b of the present invention;
FIG. 18 is a schematic view of a brushing assembly according to the present invention;
FIG. 19 is a first angular view of a fixed block b according to the present invention;
FIG. 20 is a schematic view of a belt structure according to the present invention;
FIG. 21 is a second angular schematic view of a fixed block b according to the present invention;
FIG. 22 is a schematic view of a brushing mechanism according to the present invention;
FIG. 23 is a schematic view of a spacer block configuration of the present invention;
FIG. 24 is a schematic view of a rotary part structure according to the present invention;
FIG. 25 is a schematic view of the stirring mechanism of the present invention;
FIG. 26 is a schematic view of the vertical state of the iron-carbon micro-electrolysis assembly of the present invention;
FIG. 27 is a schematic view of a first rotation of an iron-carbon block according to the present invention;
FIG. 28 is a second rotational schematic of the iron carbon of the present invention.
Reference numerals
1. A reaction tank; 11. a water inlet pipe; 12. a drain pipe; 13. a bracket; 14. a water outlet pipe; 2. an iron-carbon micro-electrolysis mechanism; 21. an iron-carbon micro-electrolysis assembly; 211. a housing; 2111. a chute a; 2112. a chute b; 212. a fixed block a; 213. a rotating lever; 214. a closing part; 2140. a locking unit; 21401. a central rod a; 21402. z-shaped clamping blocks; 214021, oblique guide grooves; 214022, clip groove; 21403. a spring a; 2141. a rotating block a; 2142. a winding shaft; 2143. an isolation net; 2144. a connecting rod b; 2145. a slide block; 2146. a linear driving member a; 2147. a pushing block; 2148. a linear driving member b; 2149. u-shaped clamping blocks; 215. a transmission part; 2151. a disc; 2152. an annular toothed ring; 2153. bevel gear a; 2154. a central shaft; 2155. bevel gear b; 2156. a gear d; 2157. a turntable; 21571. a straight slot; 22. a switching assembly; 221. a baffle; 2211. a sliding groove; 222. a swinging block; 223. a slide bar; 224. a sliding block; 2241. a receiving groove; 225. a rotating sleeve; 226. an avoidance unit; 2261. a driving rod; 2262. a gear e; 2263. a linear driving member d; 2264. rack plate; 2265. a spring b; 2266. a fixing ring; 3. a brushing mechanism; 31. a brushing assembly; 311. a case body; 312. a fixed block b; 3121. a T-shaped groove; 3122. an avoidance groove; 313. a moving belt; 314. a brush; 315. a transmission shaft a; 316. a gear f; 317. a clamping block; 318. a T-bar; 319. a connecting rod a; 3191. a block b; 32. an isolation assembly; 321. a protective cover; 322. a linear driving member c; 323. a motion block; 324. a spacer block; 3241. a groove; 325. a rotating part; 3252. a transmission shaft b; 3253. a rotating rod; 3254. a gear c; 4. a stirring mechanism; 41. a central rod b; 42. a rotating block b; 43. stirring blocks; 44. a fixed rod; 45. a word block a; 46. an air nozzle; 6. a sedimentation tank; 61. a shelf.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
As shown in fig. 1, this embodiment provides a biochemical treatment system for electroplating wastewater containing cyanide and heavy metal, which includes: a reaction tank 1; an iron-carbon micro-electrolysis mechanism 2; a brushing mechanism 3; a stirring mechanism 4, in this embodiment, stirring the wastewater in the reaction tank 1 by the stirring mechanism 4; the outer surface wall of the iron carbon block in the iron carbon micro-electrolysis mechanism 2 is brushed through the brushing mechanism 3, a passivation film on the outer surface wall of the iron carbon block is timely removed, the treatment effect on wastewater is improved, and an adding inlet is formed in the top of the reaction tank 1 and used for adding a catalyst.
Preferably, as shown in fig. 3, the iron-carbon micro-electrolysis mechanism 2 includes: the iron-carbon micro-electrolysis assemblies 21, and the two groups of iron-carbon micro-electrolysis assemblies 21 are oppositely arranged; the switching component 22, the switching component 22 switches the working states of the two groups of iron-carbon micro-electrolysis components 21, in this embodiment, one side of the reaction tank 1 is provided with a precipitation tank 6, the reaction tank 1 is provided with a water inlet pipe 11 and a water outlet pipe 12, the reaction tank 1 is communicated with the precipitation tank 6 through the water outlet pipe 12, the bottom of the reaction tank 1 is provided with a bracket 13, the precipitation tank 6 is provided with a water outlet pipe 14, and the bottom of the precipitation tank 6 is provided with a bracket 61.
In this embodiment, the working states of the two groups of iron-carbon micro-electrolysis assemblies 21 are switched by the switching assembly 22, the iron-carbon micro-electrolysis assembly 21 at the bottom is used for treating wastewater, and the brushing mechanism 3 is used for brushing the outer surface wall of the iron-carbon block in the iron-carbon micro-electrolysis assembly 21 at the top, so that the operation of the next switching procedure is facilitated.
Preferably, as shown in fig. 25, the stirring mechanism 4 includes: the central rod b41, the central rod b41 is arranged at the bottom of the reaction tank 1; a rotating block b42, wherein the rotating block b42 is arranged on the top of the central rod b 41; stirring blocks 43, wherein the stirring blocks 43 are arranged on two sides of the rotating block b 42; an air nozzle 46, the air nozzle 46 being mounted on the rotating block b 42; the air nozzle 46 is used to inject oxygen to facilitate the reaction.
In this embodiment, the wastewater enters the reaction tank 1 through the water inlet pipe 11, the motor drives the center rod b41 to rotate, and then drives the stirring block 43 to rotate to stir the wastewater in the reaction tank 1, the air nozzle 46 sprays gas, and the iron-carbon micro-electrolysis assembly 21 treats the wastewater.
Further, as shown in fig. 4, the switching assembly 22 includes: baffle 221, two sides of baffle 221 in reaction tank 1 are provided with slide grooves 2211; the swinging block 222, the swinging block 222 is rotatably arranged on the baffle 221; a sliding rod 223, wherein the sliding rod 223 is slidably arranged in the swinging block 222; the sliding block 224, the sliding block 224 is slidably arranged in the sliding groove 2211, the iron-carbon micro-electrolysis assembly 21 is arranged on the sliding block 224, the rotating sleeve 225 is rotatably arranged on the sliding block 224, and the rotating sleeve 225 is connected with the tail end of the sliding rod 223; the avoidance portion 226, the avoidance portion 226 prevents interference from occurring when the iron-carbon micro-electrolysis module 21 is switched.
Preferably, as shown in fig. 5 and 6, the iron-carbon micro-electrolysis assembly 21 includes: a housing 211; a fixed block a212, the fixed block a212 being installed at the center of the housing 211; a rotation lever 213, a plurality of sets of rotation levers 213 being installed in the housing 211; a closing portion 214, the closing portion 214 being provided on the housing 211; the closing portion 214 includes: a rotating block a2141, the rotating block a2141 being mounted on the housing 211; the winding shaft 2142, wherein the winding shaft 2142 is arranged in the rotating block a 2141; the isolation net 2143, the isolation net 2143 is winded on the winding shaft 2142; a connecting rod b2144, wherein the connecting rod b2144 is installed on the isolation net 2143, and a chute a2111 is formed in the shell 211; a slider 2145, the slider 2145 mounted on the connection rod b2144 sliding in the chute a2111; a linear driving member a2146, wherein the linear driving member a2146 is arranged at the top of the reaction tank 1; the pushing block 2147, the pushing block 2147 is disposed at the output end of the linear driving element a 2146; linear driving member b2148, linear driving member b2148 being mounted on push block 2147; a U-shaped clamping block 2149, the U-shaped clamping block 2149 being mounted to the output end of the linear driving member b 2148; the latch unit 2140, the latch unit 2140 is used to latch the position of the connection rod b2144, and the iron-carbon block in the housing 211 is preferably spherical.
In addition, it should be noted that: the isolation net 2143 plays a role of isolation, if the isolation net 2143 is not provided, the waste water moves upwards and the iron carbon blocks in the shell 211 are washed upwards, so that the sealing part 214 is necessary;
the avoidance unit 226 includes: a driving lever 2261, the driving lever 2261 being mounted on the rotation block a 2141; gear e2262, gear e2262 being mounted on drive rod 2261; a linear driving member d2263, the linear driving member d2263 being provided in the reaction tank 1; a rack bar 2264, the rack bar 2264 being mounted at the output end of the linear driving member d2263, and the sliding block 224 having an accommodation groove 2241 formed therein; a spring b2265, the spring b2265 being disposed within the receiving slot 2241; the fixing rings 2266, the fixing rings 2266 are installed at both ends of the spring b2265, one of the fixing rings 2266 is installed in the receiving groove 2241, the other fixing ring 2266 is installed on the driving rod 2261, and the fixing rings 2266 are preferably screw-installed.
In this embodiment, the swing block 222 is driven to rotate by the motor, the sliding rod 223 slides in the swing block 222, and the sliding block 224 slides in the sliding groove 2211, so as to drive the top iron-carbon micro-electrolysis assembly 21 to move downwards, and the bottom iron-carbon micro-electrolysis assembly 21 to move upwards;
it should be noted that: as shown in fig. 3, under the action of the elastic force of the spring b2265, the iron-carbon micro-electrolysis components 21 are in a horizontal state, if the iron-carbon micro-electrolysis components 21 are in a horizontal state all the time in the switching process, the two iron-carbon micro-electrolysis components 21 move in opposite directions to generate interference, so that the linear driving piece d2263 drives the rack plate 2264 to move to drive the gear e2262 to rotate, and further drives the iron-carbon micro-electrolysis components 21 to be in a vertical state, the state is as shown in fig. 26, at the moment, the two iron-carbon micro-electrolysis components 21 move in opposite directions to generate no interference, and when the iron-carbon micro-electrolysis components 21 move to a designated station, the linear driving piece d2263 drives the rack plate 2264 to move to be disengaged from the gear e2262, and under the action of the elastic force of the spring b2265, the iron-carbon micro-electrolysis components 21 are restored to the horizontal state;
what needs to be specifically stated is: when the two iron-carbon micro-electrolysis assemblies 21 move towards each other, the rack plate 2264 and the gear e2262 are meshed and synchronously move, so as to ensure that the iron-carbon micro-electrolysis assemblies 21 are always in a vertical state.
Further, as shown in fig. 14, the latch unit 2140 includes: a center rod a21401, the center rod a21401 being mounted to the housing 211; the Z-shaped clamping blocks 21402, two groups of Z-shaped clamping blocks 21402 are rotatably arranged on the central rod a21401, and inclined guide grooves 214021 and clamping grooves 214022 are formed in the Z-shaped clamping blocks 21402; spring a21403, spring a21403 being disposed between two sets of Z-shaped clamp blocks 21402.
In this embodiment, the linear driving member a2146 and the linear driving member b2148 drive the U-shaped clamping block 2149 to clamp the connecting rod b2144, drive the connecting rod b2144 to move away from the clamping groove 214022, the spring a21403 is stressed and compressed, the motor drives the winding shaft 2142 to rotate to wind the isolation net 2143, drive the isolation net 2143 to leave the top of the housing 211, so that the iron carbon blocks in the housing 211 are exposed, the subsequent brushing mechanism 3 is convenient to brush the iron carbon blocks in the housing 211, and the linear driving member a2146 is preferably driven by an air cylinder.
Preferably, as shown in fig. 22, the brushing mechanism 3 includes: a brushing assembly 31; an isolation assembly 32; after the isolation assembly 32 isolates and distinguishes the iron-carbon blocks in the shell 211, the brushing assembly 31 brushes the outer surface walls of the iron-carbon blocks in the shell 211.
Specifically, as shown in fig. 18, the brushing assembly 31 includes: a case 311; a fixed block b312, the fixed block b312 being mounted in the box 311; a moving belt 313, the moving belt 313 sliding outside the fixed block b 312; a brush 314, the brush 314 being provided outside the moving belt 313; a transmission shaft a315, wherein the transmission shaft a315 is rotatably arranged in the fixed block b 312; gear f316, gear f316 is mounted on drive shaft a 315; the clamping block 317, the clamping block 317 is installed inside the moving belt 313 and meshed with the gear f 316; t-shaped strip 318, T-shaped strip 318 installs in the motion belt 313 inboard, has seted up T-shaped groove 3121 in the fixed block b312, has seted up dodge groove 3122 in the fixed block b312, and connecting rod a319 is installed to fixed block b312 bottom, installs a word piece b3191 on the connecting rod a 319.
The isolation assembly 32 includes: a protective cover 321, wherein the protective cover 321 is arranged on one side of the reaction tank 1; a linear driving member c322, wherein the linear driving member c322 is disposed in the protective cover 321; the moving block 323, the moving block 323 is installed at the output end of the linear driving piece c322, and a plurality of groups of sliding grooves b2112 are formed in the shell 211; the spacing blocks 324, a plurality of groups of spacing blocks 324 are arranged on the moving block 323, and the spacing blocks 324 are inserted into the sliding grooves b2112;
the iron-carbon micro-electrolysis assembly 21 further comprises a transmission part 215, and the transmission part 215 drives the rotating rod 213 to rotate; preferably, as shown in fig. 8, the transmission part 215 includes: disc 2151, disc 2151 being mounted on fixed block a 212; an annular ring 2152, the annular ring 2152 being rotatably disposed within the disc 2151; bevel gear a2153, bevel gear a2153 being mounted on rotation lever 213; a central shaft 2154, the central shaft 2154 being rotatably disposed within the fixed block a 212; bevel gears b2155, a plurality of sets of bevel gears b2155 mounted on central shaft 2154 and meshed with bevel gears a 2153; a gear d2156, the gear d2156 being mounted on one end of the central shaft 2154 and meshed with the annular ring 2152; turntable 2157. Turntable 2157 is mounted on annular ring 2152. A slot 21571 is formed in turntable 2157.
The isolation assembly 32 further includes a rotation portion 325, the rotation portion 325 driving the iron-carbon block in the housing 211 to rotate; the rotating portion 325 includes: the groove 3241, the groove 3241 is arranged in the spacing block 324; a plurality of groups of transmission shafts b3252, wherein the transmission shafts b3252 are arranged in the grooves 3241; a rotating rod 3253, the rotating rod 3253 being mounted on the transmission shaft b 3252; gear c3254, gear c3254 being mounted on drive shaft b3252 and intermeshed;
in this embodiment, the linear driving member c322 drives the spacer 324 to insert into the chute b2112, the spacer 324 separates the iron-carbon blocks in the housing 211 into separate areas, the spacer 324 plays a role in separation, and the iron-carbon blocks are prevented from accumulating in the housing 211 when the brushing mechanism 3 brushes the iron-carbon blocks;
the motor drives the gear c3254 to rotate so as to drive the rotating rod 3253 to rotate, so that the iron-carbon block in the shell 211 turns over and rotates along the Z direction shown in fig. 6, the rotating state is shown in fig. 27, and the brushing mechanism 3 is convenient for brushing the surface of the iron-carbon block to remove the passivation film on the surface;
meanwhile, the character block b3191 is driven to be inserted into the character groove 21571, the motor is used for driving the connecting rod a319 to rotate, the turntable 2157 and the gear d2156 are driven to rotate, the central shaft 2154 is driven to rotate, the rotating rod 213 is further driven to rotate, the iron carbon block in the shell 211 is turned over, the iron carbon block rotates along the Y direction shown in fig. 6, the rotating state is shown in fig. 28, the brushing mechanism 3 is convenient for brushing the surface of the iron carbon block, and the passivation film on the surface is removed.
Example two
As shown in fig. 25, wherein the same or corresponding parts as those in the first embodiment are given the same reference numerals as those in the first embodiment, only the points of distinction from the first embodiment will be described below for the sake of brevity. The second embodiment is different from the first embodiment in that:
in this embodiment, the stirring mechanism 4 further includes a fixing rod 44, where the fixing rod 44 is mounted on the rotating block b 42; a block a45, the block a45 being mounted on the fixing rod 44; the iron-carbon micro-electrolysis assembly 21 at the bottom moves downwards, the straight block a45 is inserted into the straight groove 21571 from the bottom, the motor drives the fixed rod 44 to rotate, the turntable 2157 and the gear d2156 are driven to rotate, the central shaft 2154 is driven to rotate, the rotating rod 213 is further driven to rotate, the iron-carbon blocks in the shell 211 are turned over, and hardening among the iron-carbon blocks is prevented.
Working procedure
Step one, a water inlet procedure: the wastewater enters the reaction tank 1 through the water inlet pipe 11, the motor drives the central rod b41 to rotate, the stirring block 43 is driven to rotate so as to stir the wastewater in the reaction tank 1, the air nozzle 46 sprays gas, the iron-carbon micro-electrolysis assembly 21 processes the wastewater, and sodium hypochlorite, flocculant and activated carbon are sequentially added into the reaction tank 1;
step two, switching procedure: the swing block 222 is driven to rotate, the sliding rod 223 slides in the swing block 222, the sliding block 224 slides in the sliding groove 2211, and then the iron-carbon micro-electrolysis assembly 21 at the top is driven to move downwards, the iron-carbon micro-electrolysis assembly 21 at the bottom moves upwards, and the switching of the working states of the two iron-carbon micro-electrolysis assemblies 21 is realized;
step three, unlocking procedure: the U-shaped clamping blocks 2149 are driven to clamp the connecting rods b2144 through the linear driving piece a2146 and the linear driving piece b2148, the connecting rods b2144 are driven to move away from the clamping grooves 214022, the springs a21403 are stressed and compressed, the motor drives the winding shaft 2142 to rotate so as to wind the isolation net 2143, the isolation net 2143 is driven to leave the top of the shell 211, and the iron carbon blocks in the shell 211 are exposed;
step four: and (3) a turnover procedure: the linear driving piece c322 drives the spacing block 324 to be inserted into the chute b2112, the spacing block 324 isolates and divides the iron-carbon block in the shell 211 into areas, the linear block b3191 is driven to be inserted into the linear groove 21571, the motor drives the connecting rod a319 to rotate, the turntable 2157 and the gear d2156 are driven to rotate, the central shaft 2154 is driven to rotate, and the rotating rod 213 is driven to rotate, so that the iron-carbon block in the shell 211 is turned over; the motor drives the gear c3254 to rotate so as to drive the rotating rod 3253 to rotate, and the iron-carbon blocks in the shell 211 are turned over;
step five, brushing procedure: the motor drives the transmission shaft a315 to rotate, the driving gear f316 to rotate, the moving belt 313 is driven to slide outside the fixed block b312, and the hairbrush 314 is driven to brush iron-carbon blocks in the shell 211;
step six: and (3) a drainage procedure: the wastewater treated by the iron-carbon micro-electrolysis assembly 21 is discharged into the sedimentation tank 6 through the water discharge pipe 12, the wastewater is sedimented in the sedimentation tank 6, and the supernatant is discharged through the water discharge pipe 14.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (2)
1. A biochemical treatment system for electroplating wastewater containing cyanide and heavy metals comprises:
a reaction tank;
characterized by further comprising:
an iron-carbon micro-electrolysis mechanism;
a brushing mechanism;
the stirring mechanism is used for brushing the outer surface wall of the iron carbon block in the iron carbon micro-electrolysis mechanism and stirring the wastewater in the reaction tank;
the iron-carbon micro-electrolysis mechanism comprises:
the iron-carbon micro-electrolysis assemblies are oppositely arranged;
the switching component is used for switching the working states of the two groups of the iron-carbon micro-electrolysis components;
the switching assembly includes:
the baffle plate is arranged in the reaction tank, and sliding grooves are formed in two sides of the baffle plate;
the swinging block is rotatably arranged on the baffle;
the sliding rod is arranged in the swinging block in a sliding way;
the sliding block is arranged in the sliding groove in a sliding way, and the iron-carbon micro-electrolysis assembly is arranged on the sliding block;
the rotating sleeve is rotationally arranged on the sliding block and is connected with the tail end of the sliding rod;
the avoiding part is used for preventing interference generated when the iron-carbon micro-electrolysis assembly is switched;
the iron-carbon micro-electrolysis assembly comprises:
a housing;
the fixed block a is arranged in the center of the shell;
the rotating rods are arranged in the shell;
the sealing part is arranged on the shell;
the transmission part drives the rotating rod to rotate;
the closure includes:
the rotating block a is arranged on the shell;
the winding shaft is arranged in the rotating block a;
the isolation net is wound on the winding shaft;
the connecting rod b is arranged on the isolating net, and a sliding chute a is formed in the shell;
the sliding block is arranged on the connecting rod b and slides in the chute a;
the linear driving piece a is arranged at the top of the reaction tank;
the pushing block is arranged at the output end of the linear driving piece a;
the linear driving piece b is arranged on the pushing block;
the U-shaped clamping block is arranged at the output end of the linear driving part b;
the locking unit is used for locking the position of the connecting rod b;
the transmission part includes:
the disc is arranged on the fixed block a;
the annular toothed ring is rotationally arranged in the disc;
a bevel gear a mounted on the rotating rod;
the central shaft is rotationally arranged in the fixed block a;
a plurality of groups of bevel gears b are arranged on the central shaft and meshed with the bevel gears a;
the gear d is arranged at one end of the central shaft and meshed with the annular toothed ring;
the rotary table is arranged on the annular toothed ring, and a straight slot is formed in the rotary table;
the brushing mechanism includes:
a brushing assembly;
an isolation assembly; after the isolation component isolates and distinguishes the iron-carbon blocks in the shell, the brushing component brushes the outer surface walls of the iron-carbon blocks in the shell;
the brushing assembly includes:
a case body;
the fixed block b is arranged in the box body;
a moving belt sliding outside the fixed block b;
the hairbrush is arranged on the outer side of the moving belt;
the transmission shaft a is rotatably arranged in the fixed block b;
the gear f is arranged on the transmission shaft a;
the clamping block is arranged on the inner side of the moving belt and meshed with the gear f;
the T-shaped strip is arranged on the inner side of the moving belt, a T-shaped groove is formed in the fixed block b, and an avoidance groove is formed in the fixed block b;
the isolation assembly includes:
the protective cover is arranged on one side of the reaction tank;
the linear driving piece c is arranged in the protective cover;
the motion block is arranged at the output end of the linear driving piece c, and a plurality of groups of sliding grooves b are formed in the shell;
the plurality of groups of spacing blocks are arranged on the moving block, and the spacing blocks are inserted into the sliding grooves b;
a rotating part which drives the iron-carbon block in the shell to rotate;
the rotating part includes:
the groove is formed in the spacing block;
a plurality of groups of transmission shafts b are arranged in the grooves;
the rotating rod is arranged on the transmission shaft b;
a gear c mounted on the transmission shaft b and engaged with each other;
the latch unit includes:
a center rod a mounted on the housing;
the Z-shaped clamping blocks are arranged on the central rod a in a rotating way, and inclined guide grooves and clamping grooves are formed in the Z-shaped clamping blocks;
the spring a is arranged between the two groups of Z-shaped clamping blocks;
the avoidance portion includes:
the driving rod is arranged on the rotating block a;
a gear e mounted on the driving rod;
the linear driving piece d is arranged in the reaction tank;
the rack plate is arranged at the output end of the linear driving piece d, and a containing groove is formed in the sliding block;
the spring b is arranged in the accommodating groove and sleeved outside the driving rod;
and the fixing rings are arranged at two ends of the spring b, one fixing ring is arranged in the accommodating groove, and the other fixing ring is arranged on the driving rod.
2. The biochemical treatment system for electroplating wastewater containing cyanide and heavy metal according to claim 1, wherein the stirring mechanism comprises:
the central rod b is arranged at the bottom of the reaction tank;
the rotating block b is arranged at the top of the central rod b;
the stirring blocks are arranged on two sides of the rotating block b;
the fixed rod is arranged on the rotating block b;
a character block a, wherein the character block a is arranged on the fixed rod;
the air nozzles are arranged on the rotating block b;
the bottom of the fixed block b is provided with a connecting rod a, and the connecting rod a is provided with a character block b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211089661.7A CN115367842B (en) | 2022-09-07 | 2022-09-07 | Electroplating cyanide-containing and heavy metal wastewater biochemical treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211089661.7A CN115367842B (en) | 2022-09-07 | 2022-09-07 | Electroplating cyanide-containing and heavy metal wastewater biochemical treatment system |
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| CN115367842B true CN115367842B (en) | 2023-11-28 |
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| CN115367842A (en) | 2022-11-22 |
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