CN114100211B

CN114100211B - Contain chromium electroplating effluent's multi-stage treatment mechanism

Info

Publication number: CN114100211B
Application number: CN202111488838.6A
Authority: CN
Inventors: 匡优新
Original assignee: Wuxi Xingyi Intelligent Environment Equipment Co Ltd
Current assignee: Wuxi Xingyi Intelligent Environment Equipment Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2023-04-07
Anticipated expiration: 2041-12-08
Also published as: CN114100211A

Abstract

The invention relates to the field of wastewater treatment, and discloses a multistage treatment mechanism for chromium-containing electroplating wastewater, which comprises a bottom plate, wherein two support plates are symmetrically arranged at the top end of the bottom plate, a rotating shaft is rotatably connected between the two support plates, a wastewater pool is fixed on the rotating shaft, and a first driving mechanism for driving the rotating shaft to rotate is arranged on each support plate; a collecting and settling box arranged at the top end of the bottom plate is arranged below the wastewater pool; the top of each support plate is fixedly connected with a guide rod, two guide rods are connected with an impact plate above the wastewater pool in a clamping and sliding mode, a top plate above the impact plate is fixed to the top ends of the two guide rods, and a second driving mechanism used for driving the impact plate to slide along the guide rods is arranged on the top plate. The invention enables the wastewater pool to turn over under the action of the first driving mechanism, so that the sediment in the wastewater pool is poured into the sediment collection box, and the problem of accumulation of the sediment in the wastewater pool is avoided.

Description

Multi-stage treatment mechanism for chromium-containing electroplating wastewater

Technical Field

The invention belongs to the field of wastewater treatment, and particularly relates to a multistage treatment mechanism for chromium-containing electroplating wastewater.

Background

During electroplating, the metal or other insoluble materials of the coating are used as an anode, the workpiece to be plated is electroplated is used as a cathode, and cations of the metal of the coating are reduced on the surface of the workpiece to be plated to form the coating. In order to eliminate the interference of other cations and make the plating layer uniform and firm, a solution containing the metal cations of the plating layer is used as an electroplating solution to keep the concentration of the metal cations of the plating layer constant. The purpose of electroplating is to plate a metal coating on a substrate, altering the surface properties or dimensions of the substrate. The electroplating can enhance the corrosion resistance of the metal (the plating metal is mostly corrosion-resistant metal), increase the hardness, prevent abrasion, improve the conductivity, the smoothness, the heat resistance and the surface beauty.

Although electroplating has many advantages, there are negative effects in the electroplating process, one of which is electroplating wastewater.

The water quality and the water quantity of the electroplating wastewater are related to factors such as the process condition, the production load, the operation management and the water using mode of electroplating production. The electroplating wastewater has complex water quality and difficult control of components, contains heavy metal ions such as chromium, cadmium, nickel, copper, zinc, gold, silver and the like, cyanide and the like, and some of the heavy metal ions belong to highly toxic substances with carcinogenic, teratogenic and mutagenic properties.

The chromium-containing waste water is treated by chromium reduction method, and the principle is that under the acidic condition, reducing agent ferrous sulfate, sodium bisulfite, sodium sulfite, sulfur dioxide and the like are added to reduce hexavalent chromium into trivalent chromium, then calcium hydroxide, sodium hydroxide, lime and the like are added to adjust the pH value, so that the generated trivalent chromium hydroxide precipitate is separated from the waste water.

If the sediments are accumulated too much in the wastewater tank, the water outlet of the wastewater tank can be blocked, so that the treated wastewater is difficult to discharge, the wastewater is not discharged, and the sediments cannot be removed. Therefore, in order to solve this problem, a multistage treatment mechanism for chromium-containing electroplating wastewater is proposed.

Disclosure of Invention

In order to solve the problems in the background technology, the invention provides a multistage treatment mechanism for chromium-containing electroplating wastewater, which comprises a bottom plate, wherein two support plates are symmetrically arranged at the top end of the bottom plate, a rotating shaft is rotatably connected between the two support plates, a wastewater tank is fixed on the rotating shaft, and a first driving mechanism for driving the rotating shaft to rotate is arranged on each support plate; a collecting and precipitating box arranged at the top end of the bottom plate is arranged below the wastewater pool; the top end of each support plate is fixedly connected with a guide rod, an impact plate located above the wastewater pool is clamped and slidably connected between the two guide rods, a top plate located above the impact plate is fixed to the top ends of the two guide rods, a second driving mechanism used for driving the impact plate to slide along the guide rods is arranged on the top plate, when chromium in wastewater is precipitated, the chromium is discharged out of the wastewater pool, at the moment, only precipitate remains in the wastewater pool, the wastewater pool is turned over under the action of the first driving mechanism, and then the precipitate is poured into a precipitation box, so that the problem that the precipitate is excessively accumulated in the wastewater pool can be solved; moreover, at the in-process of empting the precipitate, accessible second actuating mechanism's effect promotes the impingement plate and slides along the guide bar, strikes the effluent water sump after the upset, makes the precipitate that bonds on the effluent water sump can be knocked down.

Furthermore, the first driving mechanism comprises a first motor arranged on one support plate, the output shaft of the first motor and the peripheral side of the rotating shaft are fixedly sleeved with a first gear which is meshed with each other, so that the first gear which is meshed with each other can drive the rotating shaft to rotate under the driving of the first motor, and the rotating shaft drives the wastewater disposal basin to turn over.

Further, the supporting mechanism comprises four supporting rods which are respectively rotatably connected to four corners of the top end of the bottom plate, a base plate perpendicular to the supporting rods is fixed to the top ends of the supporting rods, the top ends of the base plates are attached to the bottom end of the wastewater pond, and a fixing mechanism used for fixing the supporting rods is arranged on the bottom plate.

Further, fixed establishment includes the connecting block of fixed connection in every branch outside, every all run through on the connecting block and seted up a through-hole, a plurality of jacks corresponding with the through-hole have been seted up on the top of bottom plate, every all be connected with the bolt that passes corresponding through-hole, jack in proper order between connecting block and the bottom plate, so, when the bolt is pegged graft between bottom plate and connecting block, the below that the backing plate is located the wastewater disposal basin carries out the auxiliary stay to it, when needs upset wastewater disposal basin, takes off the bolt, rotates branch, make branch drive backing plate and wastewater disposal basin contactless can.

Furthermore, in order to conveniently treat sediments in the collecting box, two sides of the front panel on the collecting box are respectively provided with a sliding block in the vertical direction, the collecting box is provided with two sliding grooves which are matched and connected with the sliding blocks, the top end of each sliding groove is communicated with the top end of the collecting box, and therefore the front panel can be detached.

Furthermore, the second driving mechanism comprises a screw rod which is connected to the top plate in a penetrating manner through a bearing and is perpendicular to the screw rod, a push pipe which is located below the top plate and is fixedly connected with the top end of the impact plate at the bottom end of the screw rod is sleeved on the outer peripheral side of the screw rod in a threaded manner, an external connection pipe which is fixed below the top plate is sleeved on the outer peripheral side of the push pipe, and a third driving mechanism which is used for driving the screw rod to rotate and a limiting mechanism which is used for limiting the rotation of the push pipe are arranged on the top plate.

Furthermore, the third driving mechanism comprises a second motor installed at the top end of the top plate, and a second gear which is meshed with each other and is located above the top plate is fixedly sleeved on an output shaft of the second motor and the outer peripheral side of the screw rod.

Further, stop gear is including running through the spacing groove of seting up on outer pipe inner wall and following its direction of height distribution, the outside fixedly connected with of ejector sleeve is connected with the spacing of spacing groove cooperation, so, when motor two drive lead screw rotate, because the ejector sleeve with lead screw threaded connection is spacing by spacing groove and spacing, so the ejector sleeve can only reciprocate, and can not rotate, and like this, the ejector sleeve just can drive the impact plate and reciprocate along the guide bar.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, the wastewater pool is rotatably connected between the two support plates through the rotating shaft, the opening of the wastewater pool is vertically upward in an initial state, after chromium precipitation is carried out, wastewater is discharged, the wastewater pool is overturned under the action of the first driving mechanism, so that the precipitate in the wastewater pool is poured into the precipitation box, and the problem of accumulation of the precipitate in the wastewater pool is avoided.

2. According to the invention, under the action of the second driving mechanism, the impact plate can be driven to slide along the guide rod, so that the impact plate can beat and oscillate the turned wastewater pool back and forth, and the sediment adhered in the wastewater pool can be beaten down, thereby further removing the sediment in the wastewater pool.

3. In the invention, the supporting mechanism is used for assisting in supporting the wastewater pool to keep the wastewater pool stable in an initial state, and when the wastewater pool needs to be turned, the supporting mechanism does not influence the turning of the wastewater pool.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a schematic top view of the present invention;

FIG. 5 is a schematic structural view of the support mechanism of the present invention;

FIG. 6 is an enlarged view of the structure at the point A;

FIG. 7 is an enlarged view of the structure at B of the present invention;

FIG. 8 is an exploded view of a second driving mechanism according to the present invention;

FIG. 9 is an enlarged view of the structure at position C of the present invention;

in the figure: 1. a base plate; 2. a support plate; 3. a rotating shaft; 4. a wastewater tank; 5. a first drive mechanism; 501. a first motor; 502. a first gear; 6. a collecting and settling box; 7. a guide rod; 8. an impact plate; 9. a top plate; 10. a second drive mechanism; 1001. a screw rod; 1002. pushing the tube; 1003. connecting the outer pipe; 11. a support mechanism; 1101. a strut; 1102. a base plate; 12. a fixing mechanism; 1201. connecting blocks; 1202. a through hole; 1203. a jack; 1204. a bolt; 13. a slider; 14. a chute; 15. a third drive mechanism; 1501. a second motor; 1502. a second gear; 16. a limiting mechanism; 1601. a limiting groove; 1602. and (5) a limiting strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the idle place of the device, all the electric devices and the matched drivers thereof are arranged, and all the driving parts in the above-mentioned devices, which refer to the power element, the electric devices and the adaptive power supply, are connected through the conducting wires by those skilled in the art, and specific connection means should be referred to in the following description, wherein the electric connection is completed in sequence among the electric devices, and the detailed connection means thereof are well known in the art.

The first embodiment is as follows:

the multi-stage treatment mechanism for chromium-containing electroplating wastewater provided by the embodiment comprises a bottom plate 1 as shown in figure 1, wherein:

two support plates 2 are symmetrically arranged at the top end of the bottom plate 1, a rotating shaft 3 is rotatably connected between the two support plates 2, a wastewater tank 4 which is opened upwards in an initial state is fixed on the rotating shaft 3, and meanwhile, a first driving mechanism 5 for driving the rotating shaft 3 to rotate is arranged on each support plate 2;

a collecting and settling box 6 arranged at the top end of the bottom plate 1 is arranged below the wastewater pool 4;

in addition, a guide rod 7 is fixedly connected to the top end of each support plate 2, an impact plate 8 located above the wastewater pool 4 is connected between the two guide rods 7 in a clamping and sliding mode, a top plate 9 located above the impact plate 8 is fixed to the top ends of the two guide rods 7, and a second driving mechanism 10 used for driving the impact plate 8 to slide along the guide rods 7 is arranged on the top plate 9;

under the conditions, chromium in the wastewater is discharged out of the wastewater tank 4 after being precipitated, at the moment, only precipitates are left in the wastewater tank 4, and the wastewater tank 4 is turned over under the action of the first driving mechanism 5, so that the precipitates are poured into the precipitation tank 6, and thus, the problem that the precipitates are excessively accumulated in the wastewater tank 4 can be avoided; moreover, in the process of dumping sediments, the impact plate 8 can be pushed to slide along the guide rod 7 under the action of the second driving mechanism 10, the overturned wastewater pool 4 is knocked, and sediments adhered to the wastewater pool 4 can be knocked down.

The specific structure of the first driving mechanism 5 is shown in fig. 2, the first driving mechanism 5 includes a first motor 501 mounted on one of the support plates 2, a first gear 502 meshed with each other is fixedly sleeved on the output shaft of the first motor 501 and the outer peripheral side of the rotating shaft 3, in order to not affect the turning over of the wastewater tank 4, the first motor 501 and the first gear 502 can be both arranged on the outer sides of the support plates 2, that is, one end of the rotating shaft 3 extends out of the corresponding support plate 2; in addition, the wastewater disposal basin 4 may not be fixed firmly by means of the engagement of the first gear 502, and therefore, a supporting mechanism 11 for assisting in supporting the wastewater disposal basin 4 is further disposed on the bottom plate 1, as shown in fig. 5, the supporting mechanism 11 includes four supporting rods 1101 respectively rotatably connected to four corners of the top end of the bottom plate 1, a backing plate 1102 perpendicular to the supporting rods 1101 is fixed to the top end of each supporting rod 1101, and the top end of each backing plate 1102 is attached to the bottom end of the wastewater disposal basin 4 to support the wastewater disposal basin 4; in addition, because the supporting rods 1101 are rotatable, a fixing mechanism 12 for fixing the supporting rods 1101 is further arranged on the base plate 1, as shown in fig. 6, the fixing mechanism 12 includes a connecting block 1201 fixedly connected to the outer side of each supporting rod 1101, a through hole 1202 penetrates through each connecting block 1201, meanwhile, a plurality of insertion holes 1203 corresponding to the through holes 1202 are formed in the top end of the base plate 1, a plug 1204 sequentially penetrating through the corresponding through hole 1202 and the corresponding insertion hole 1203 is connected between each connecting block 1201 and the base plate 1, when the plug 1204 is inserted between the base plate 1 and the connecting block 1201, the cushion plate 1102 supports the wastewater tank 4, when the plug 1204 is removed, the supporting rods 1101 can be rotated to enable the supporting rods 1101 to drive the cushion plate 1102 to horizontally rotate to the outer side of the wastewater tank 4, and thus the wastewater tank 4 can be turned over.

As shown in fig. 7, two sides of the front panel on the collection and sedimentation box 6 are both provided with a sliding block 13 in the vertical direction, meanwhile, the collection and sedimentation box 6 is provided with two sliding grooves 14 which are in fit connection with the sliding blocks 13, and the top end of each sliding groove 14 is communicated with the top end of the collection and sedimentation box 6, so that the front panel of the collection and sedimentation box 6 can be removed, and sediments in the collection and sedimentation box 6 can be conveniently removed.

The second driving mechanism 10 is specifically configured as shown in fig. 2 and 8, the second driving mechanism 10 includes a lead screw 1001 connected to the top plate 9 through a bearing and perpendicular thereto, a push pipe 1002 located below the top plate 9 and fixedly connected to the top end of the impact plate 8 at the bottom end is screwed onto the outer peripheral side of the lead screw 1001, an external connection pipe 1003 fixed below the top plate 9 is screwed onto the outer peripheral side of the push pipe 1002, a third driving mechanism 15 for driving the lead screw 1001 to rotate and a limiting mechanism 16 for limiting the rotation of the push pipe 1002 are further provided on the top plate 9, as shown in fig. 8, the third driving mechanism 15 includes a second motor 1501 mounted on the top end of the top plate 9, a second gear 1502 engaged with each other and located above the top plate 9 is fixedly screwed onto the outer peripheral side of the lead screw 1001, while the limiting mechanism 16 is configured as shown in fig. 9, the limiting mechanism 16 includes a limiting groove 1601 distributed along the height direction of the outer connection pipe 1003 extending through the inner wall, and at the outer side of the push pipe 1002 is fixedly connected to a limiting bar 1601, so that the limiting bar 1602, when the lead screw 16 rotates, the guide bar 1002 can move up and down, so that the push rod 1002 can move only when the impact plate 1002 can move.

The second embodiment:

the multi-stage treatment mechanism for chromium-containing electroplating wastewater provided by the specific embodiment comprises a bottom plate 1, wherein two support plates 2 are symmetrically arranged at the top end of the bottom plate 1, a rotating shaft 3 is rotatably connected between the two support plates 2, a wastewater tank 4 with an upward opening in an initial state is fixed on the rotating shaft 3, and meanwhile, a first driving mechanism 5 for driving the rotating shaft 3 to rotate is arranged on the support plates 2; a collecting and precipitating box 6 arranged at the top end of the bottom plate 1 is arranged below the waste water tank 4; in addition, a guide rod 7 is fixedly connected to the top end of each support plate 2, an impact plate 8 located above the wastewater pool 4 is connected between the two guide rods 7 in a clamping and sliding mode, a top plate 9 located above the impact plate 8 is fixed to the top ends of the two guide rods 7, and a second driving mechanism 10 used for driving the impact plate 8 to slide along the guide rods 7 is arranged on the top plate 9; under the conditions, chromium in the wastewater is discharged out of the wastewater tank 4 after being precipitated, at the moment, only precipitates are left in the wastewater tank 4, and the wastewater tank 4 is turned over under the action of the first driving mechanism 5, so that the precipitates are poured into the precipitation tank 6, and thus, the problem that the precipitates are excessively accumulated in the wastewater tank 4 can be avoided; moreover, in the process of dumping sediments, the impact plate 8 can be pushed to slide along the guide rod 7 under the action of the second driving mechanism 10 to knock the turned wastewater pond 4, so that the sediments adhered to the wastewater pond 4 can be knocked down.

Wherein:

the first driving mechanism 5 has the same structure as the first embodiment; in the second driving mechanism 10, in the first embodiment, the impact plate 8 is actually pushed by converting the rotation of the screw rod 1001 into the vertical movement, the speed of the impact plate 8 moving up and down is influenced by the rotation speed of the screw rod 1001, and the rotation speed of the screw rod 1001 further influences the continuous knocking of the impact plate 8 on the wastewater tank 4, so under the above conditions, in order to enable the impact plate 8 to better perform the continuous knocking on the wastewater tank 4, a second way of realizing the up-and-down sliding of the impact plate 8 along the guide rod 7 is proposed, which is specifically as follows: an electric push rod is arranged between the top plate 9 and the impact plate 8, and the impact plate 8 is continuously knocked through continuous stretching of the stretching end of the electric push rod.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a contain chromium electroplating effluent's multistage processing mechanism, includes bottom plate (1), its characterized in that:

the top end of the bottom plate (1) is symmetrically provided with two support plates (2), a rotating shaft (3) is rotatably connected between the two support plates (2), a wastewater tank (4) is fixed on the rotating shaft (3), and a first driving mechanism (5) for driving the rotating shaft (3) to rotate is arranged on each support plate (2);

a collecting and precipitating box (6) arranged at the top end of the bottom plate (1) is arranged below the wastewater pool (4);

the top end of each support plate (2) is fixedly connected with a guide rod (7), an impact plate (8) positioned above the wastewater pond (4) is clamped and slidably connected between the two guide rods (7), a top plate (9) positioned above the impact plate (8) is fixed to the top ends of the two guide rods (7), and a second driving mechanism (10) for driving the impact plate (8) to slide along the guide rods (7) is arranged on the top plate (9);

and a supporting mechanism (11) for assisting in supporting the wastewater tank (4) is arranged on the bottom plate (1).

2. The multistage treatment mechanism for chromium-containing electroplating wastewater according to claim 1, characterized in that: the first driving mechanism (5) comprises a first motor (501) arranged on one support plate (2), and a first gear (502) meshed with each other is fixedly sleeved on the outer peripheral sides of an output shaft of the first motor (501) and the rotating shaft (3).

3. The multistage treatment mechanism for chromium-containing electroplating wastewater according to claim 1, characterized in that: supporting mechanism (11) are including rotating four branch (1101) of connecting in bottom plate (1) top four corners respectively, every the top of branch (1101) all is fixed with rather than vertically backing plate (1102), every the top of backing plate (1102) all laminates with the bottom of wastewater disposal basin (4), be provided with fixed establishment (12) that are used for fixed branch (1101) on bottom plate (1).

4. The multistage treatment mechanism for chromium-containing electroplating wastewater according to claim 3, characterized in that: fixing mechanism (12) include connecting block (1201) of fixed connection in every branch (1101) outside, every all run through on connecting block (1201) and seted up a through-hole (1202), a plurality ofly and through-hole (1202) corresponding jack (1203) have been seted up on the top of bottom plate (1), every all be connected with between connecting block (1201) and bottom plate (1) and pass bolt (1204) of corresponding through-hole (1202), jack (1203) in proper order.

5. The multistage treatment mechanism for chromium-containing electroplating wastewater according to claim 1, characterized in that: the two sides of the front face plate on the collection and precipitation box (6) are provided with sliding blocks (13) in the vertical direction, the collection and precipitation box (6) is provided with two sliding grooves (14) which are connected with the sliding blocks (13) in a matched mode, and the top end of each sliding groove (14) is communicated with the top end of the collection and precipitation box (6).

6. The multistage treatment mechanism for chromium-containing electroplating wastewater according to claim 1, characterized in that: the second driving mechanism (10) comprises a screw rod (1001) which is connected to the top plate (9) in a penetrating mode through a bearing and is perpendicular to the screw rod, a push pipe (1002) which is located below the top plate (9) and is fixedly connected with the top end of the impact plate (8) at the bottom end is sleeved on the outer peripheral side of the screw rod (1001), an external connection pipe (1003) fixed below the top plate (9) is sleeved on the outer peripheral side of the push pipe (1002), and a third driving mechanism (15) used for driving the screw rod (1001) to rotate and a limiting mechanism (16) used for limiting the rotation of the push pipe (1002) are arranged on the top plate (9).

7. The multistage treatment mechanism for chromium-containing electroplating wastewater according to claim 6, characterized in that: the third driving mechanism (15) comprises a second motor (1501) mounted at the top end of the top plate (9), and a second gear (1502) which is meshed with each other and is located above the top plate (9) is fixedly sleeved on the output shaft of the second motor (1501) and the outer peripheral side of the screw rod (1001).

8. The multi-stage treatment mechanism for chromium-containing electroplating wastewater according to claim 6, which comprises: limiting mechanism (16) are including running through set up in outer pipe (1003) inner wall and along its direction of height distribution's spacing groove (1601), the outside fixedly connected with of ejector sleeve (1002) cooperates spacing (1602) of being connected with spacing groove (1601).