CN217535625U

CN217535625U - Device for treating electroplating wastewater

Info

Publication number: CN217535625U
Application number: CN202220159173.8U
Authority: CN
Inventors: 严迎燕; 杨丽丽
Original assignee: Guangdong Vocational College of Environmental Protection Engineering
Current assignee: Guangdong Vocational College of Environmental Protection Engineering
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-10-04
Anticipated expiration: 2032-01-20

Abstract

The utility model discloses a device for treating electroplating wastewater, which comprises a shell, wherein the side wall of the shell is provided with a water inlet and a water outlet; the separation plate is positioned in the shell, the bottom of the separation plate is arranged on the inner bottom surface of the shell, the top of the separation plate extends upwards, and an overflow gap is formed between the top of the separation plate and the inner top surface of the shell; the first blocking piece covers the overflow gap, a first filtering hole which is communicated with the first cavity and the second cavity is formed in the first blocking piece, the first blocking piece intercepts fine electroplating sludge in sewage, floating electroplating sludge is reduced and overflows to the second cavity along with a water body, and the water quality is guaranteed.

Description

Device for treating electroplating wastewater

Technical Field

The utility model relates to a handle electroplating effluent's device field, in particular to handle electroplating effluent's device.

Background

The electroplating process generally comprises three stages of pretreatment before electroplating, electroplating and treatment after electroplating, and the complete process of each stage can be changed along with different types of electroplating products, so that electroplating sludge with different properties is generated. According to the stokes law, when the density of the electroplating sludge is higher than that of the liquid, the electroplating sludge sinks, and when the density of the electroplating sludge is lower than that of the liquid, the electroplating sludge floats. Therefore, when the electroplating wastewater contains sodium and potassium with higher concentration, the electroplating wastewater treated by a chemical method cannot effectively reduce the density of the wastewater, and the density of the generated electroplating sludge is lower than that of the treated electroplating wastewater and floats upwards. At present, most of precipitation devices on the market adopt an overflow mode to carry out solid-liquid separation on electroplating wastewater, and electroplating sludge which easily causes floating flows to the next procedure along with a water body in the overflow mode.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for treating electroplating wastewater to solve one or more technical problems in the prior art and at least provide a beneficial selection or create conditions.

The utility model provides a solution of its technical problem is:

an apparatus for treating electroplating wastewater, comprising: the side wall of the shell is provided with a water inlet and a water outlet; the separation plate is positioned in the shell, the bottom of the separation plate is arranged on the inner bottom surface of the shell, the top of the separation plate extends upwards, an overflow gap is formed between the top of the separation plate and the inner top surface of the shell, the separation plate divides the interior of the shell into a first cavity and a second cavity along the horizontal direction, the water inlet is communicated with the first cavity, and the water outlet is communicated with the second cavity; the first blocking piece covers the overflow gap, and a first filtering hole which is communicated with the first cavity and the second cavity is formed in the first blocking piece.

The technical scheme at least has the following beneficial effects: electroplating effluent lets in the drainage tube from the water inlet, the drainage tube leads electroplating effluent to the bottom of first cavity, the great electroplating sludge of density directly subsides in the bottom of first cavity, waste water is full of first cavity gradually, the less electroplating sludge of density floats upwards along with waste water, waste water enters into the overflow clearance after not passing the excessive baffle, first separation spare filters floated electroplating sludge, the water then directly passes first filtration pore and enters into in the second cavity, the secondary sedimentation of unfiltered electroplating sludge is filtered in the second cavity, the supernatant in the second cavity then passes through the delivery port discharge casing, realize multi-stage filtration, reduce rivers impact liquid level through the drainage tube, improve electroplating sludge sedimentation effect, and first separation spare covers on the overflow clearance, intercept tiny electroplating sludge, reduce floated electroplating sludge along with the overflow of water to the second cavity, guarantee outlet water quality.

As a further improvement of the technical scheme, the direction from the first cavity to the second cavity is an overflow direction, the first barrier comprises a filter plate, two or more filter plates are arranged at intervals along the overflow direction, the filter plates cover the overflow gap, and the first filter holes are formed in the end face of the filter plate. Two or more filter along overflow direction interval setting, the filter all covers on the overflow clearance moreover for electroplating effluent need pass two or more filter in proper order and just can enter into the second cavity, realizes holding back step by step to tiny electroplating mud, improves the filter effect to electroplating effluent.

As a further improvement of the technical scheme, a limiting block is arranged on the inner side wall of the shell, an opening extending in the vertical direction is formed in the limiting block, the side part of the filter plate extends into the opening, a mounting plate is arranged on the top surface of the partition plate along the overflow direction, the mounting plate surrounds the bottom of the overflow gap, and the bottom surface of the filter plate is abutted to the top surface of the mounting plate. During the installation, with the side of filter along the extending direction lapse of opening, the bottom surface to the filter offsets in mounting panel department, make the filter cover the overflow clearance completely, the opening prevents the horizontal swing of filter, and the mounting panel makes the filter fix a position completely, during the dismantlement, directly with the filter upwards take out can, the dismouting of mounting panel is easy, the convenience is washd the electroplating sludge who bonds on the mounting panel, when wasing single mounting panel simultaneously, another mounting panel also can play the filter effect, need not to shut down, and the efficiency of filtration is improved.

As another improvement of the technical scheme, the end face of the filter plate is covered with filter cloth. The aperture of the filter holes on the filter cloth is small, the filtering and intercepting effect on the fine electroplating sludge is enhanced, and the effluent quality is improved.

As another kind of improvement of above-mentioned technical scheme, the utility model discloses still include second separation piece and drainage tube, second separation piece is located in the first cavity, second separation piece will divide into sedimentation chamber and filter chamber from top to bottom in the first cavity, be equipped with a plurality of intercommunications on the second separation piece the sedimentation chamber with the second filtration pore of filter chamber, the upper end intercommunication of drainage tube the water inlet, the lower extreme intercommunication of drainage tube the bottom of sedimentation chamber. Electroplating effluent lets in the bottom of precipitation chamber through the drainage tube earlier, electroplating effluent is sufficient precipitation chamber gradually, and pass second separation piece through the second filtration pore, and enter into the filtration intracavity, second separation piece forms first barrier to the electroplating sludge of come-up, intercept thick electroplating sludge, reduce the electroplating sludge volume of come-up in the liquid level, alleviate the load of the dirty electric process of sequent processing electroplating, first separation piece then continues to form second barrier to the less electroplating sludge of granule, the realization is filtered step by step, further improve out the water quality.

As a further improvement of the above technical solution, the second blocking member includes at least two blocking plates, the second filtering hole is disposed on the blocking plate, one side of the blocking plate is connected to the inner sidewall of the housing, and the other side of the blocking plate is connected to the outer sidewall of the drainage tube. At least two baffle plates are encircled to form a mounting through hole matched with the outer diameter of the drainage tube, one side of each baffle plate is connected with the inner side wall of the shell, and the other side of each baffle plate is connected with the outer side wall of the drainage tube, so that the baffle plates can be mounted conveniently.

As a further improvement of the technical scheme, a first supporting block is formed on the inner side wall of the shell, a mounting groove extending along the horizontal direction is formed in the side face, opposite to the first cavity, of the first supporting block, one side of the blocking plate extends into the mounting groove, a second supporting block is formed on the outer side wall of the drainage tube, a groove is formed in the top face of the second supporting block, and a protruding block matched with the groove is arranged at the bottom of the other side of the blocking plate. During the installation, stretch into the mounting groove with the baffler earlier in, first tray realizes the location of baffler on vertical side, makes things convenient for the subsequent installation of baffler, then, corresponds the lug with baffler opposite side bottom and puts into the recess on the second tray again, realizes the quick location of baffler on the horizontal direction, and simple structure when dismantling the baffler, upwards mentions the baffler and is close to one side of drainage tube, again from in the recess take the baffler can, make things convenient for the dismouting, be convenient for wash.

As a further improvement of the technical scheme, the drainage tube is positioned in the middle of the first cavity, and the baffle plate is gradually inclined downwards towards the position far away from the drainage tube. During the installation, place into first cavity along vertical direction earlier the baffler, stretch into the mounting groove with the bottom of baffler again in, rotate the baffler again and go into the second tray with the top side card of baffler on, make things convenient for the extraction and the installation of baffler, improve filter area to, the drainage tube is located the middle part of first cavity, makes the shape of baffler can be unanimous, reduces the production shaping cost of baffler, and guarantees around near the rivers of drainage tube comparatively even.

As another improvement of the above technical scheme, the utility model discloses still include the reflecting plate, the top surface of reflecting plate is just right to the export of drainage tube. Electroplating sewage flowing out of the drainage tube flows upwards directly after downwards rushing to the top surface of the reflecting plate, so that the newly introduced electroplating sewage is reduced, precipitates at the bottom of the first cavity are directly dispersed, the deposition effect is improved, and the load of a subsequent electroplating sewage treatment process is reduced.

As another improvement of the technical scheme, the shell is positioned at the bottom of the first cavity and shrinks downwards to form a mud bucket. The bottom of the first cavity is contracted, so that electroplating sludge with high density can be gathered in the mud bucket conveniently and can be cleaned conveniently.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

FIG. 1 is a schematic view showing an apparatus for treating an electroplating wastewater according to an embodiment of the present invention.

In the drawings: 110-shell, 111-water inlet, 112-water outlet, 120-partition board, 121-overflow gap, 123-second cavity, 130-drainage tube, 140-filter board, 151-mounting board, 152-limit block, 160-baffle board, 161-settling chamber, 162-filter chamber, 171-first support block, 172-second support block, 180-reflecting board, 190-bagger.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliaries according to specific implementation conditions. The utility model provides an each technical feature can the interactive combination under the prerequisite of conflict each other.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, the apparatus for treating electroplating wastewater includes a housing 110 having a water inlet 111 and a water outlet 112 formed in a sidewall thereof; the separation plate 120 is positioned in the shell 110, the bottom of the separation plate 120 is arranged on the inner bottom surface of the shell 110, the top of the separation plate 120 extends upwards, an overflow gap 121 is formed between the top of the separation plate 120 and the inner top surface of the shell 110, the separation plate 120 separates the interior of the shell 110 along the horizontal direction to form a first cavity and a second cavity 123, the water inlet 111 is communicated with the first cavity, and the water outlet 112 is communicated with the second cavity 123; the first blocking member covers the overflow gap 121, and a first filtering hole for communicating the first cavity with the second cavity 123 is formed in the first blocking member. And, the utility model discloses still include second separation piece and drainage tube 130, second separation piece is located the first cavity, and second separation piece divide into precipitation chamber 161 and filter chamber 162 from top to bottom with the first cavity, is equipped with the second filtration pore of a plurality of intercommunication precipitation chambers 161 and filter chamber 162 on the second separation piece, the upper end intercommunication of drainage tube 130 the bottom of water inlet 111, the lower extreme intercommunication precipitation chamber 161 of drainage tube 130.

Concretely, electroplating effluent lets in the bottom of precipitation chamber 161 through drainage tube 130 earlier, electroplating effluent is sufficient in precipitation chamber 161 gradually, pass second separation spare through the second filtration pore after that, and enter into in the filter chamber 162, the second separation spare forms first barrier to the electroplating sludge of come-up, intercept thick electroplating sludge, reduce the electroplating sludge volume that comes up in the liquid level, alleviate the load of the electroplating dirty electric process of sequent processing, first separation spare then continues to form the second barrier to the less electroplating sludge of granule, realize that sewage filters step by step so through first separation spare through second separation spare earlier, realize the multiple filtration, and, reduce rivers impact the liquid level through drainage tube 130, improve electroplating sludge sedimentation effect, further improve out water quality. It should be noted that the second blocking member covers the top of the settling chamber 161, so that the settling chamber 161 and the filtering chamber 162 can only communicate with each other through the second filtering holes, and the inner diameter of the first filtering hole can be smaller than that of the second filtering hole, so that the first blocking member can block floating objects with smaller volume, thereby improving the filtering effect.

Furthermore, in some embodiments, the direction from the first chamber to the second chamber 123 is an overflow direction, the first blocking member includes a filter plate 140, two or more filter plates 140 are spaced apart along the overflow direction, the filter plates 140 cover the overflow gap 121, and the first filter holes are formed in an end surface of the filter plate 140. Specifically, two or more filter plates 140 are arranged at intervals along the overflow direction, and the filter plates 140 all cover the overflow gap 121, so that electroplating wastewater can enter the second cavity 123 only by sequentially passing through the two or more filter plates 140, fine electroplating sludge is intercepted step by step, and the filtering effect on the electroplating wastewater is improved. In practice, two or more filter plates 140 may be designed parallel to each other for ease of installation. Moreover, the inner diameters of the first filtering holes of the filtering plates 140 may be uniform, and in addition, the inner diameters of the first filtering holes of two or more filtering plates 140 may be gradually reduced along the overflow direction, so as to further improve the filtering effect.

In addition, in this embodiment, a limiting block 152 is disposed on the inner side wall of the casing 110, a notch extending in the vertical direction is disposed on the limiting block 152, the side portion of the filter plate 140 extends into the notch, a mounting plate 151 is disposed on the top surface of the separation plate 120 in the overflow direction, the mounting plate 151 surrounds the bottom of the overflow gap 121, and the bottom surface of the filter plate 140 abuts against the top surface of the mounting plate 151. The side wall of the filter plate 140 can slide along the opening, so that the filter plate can be disassembled and assembled, electroplating sludge adhered to the mounting plate 151 can be conveniently cleaned, and meanwhile, when a single mounting plate 151 is cleaned, the other mounting plate 151 can also play a role in filtering without stopping, and the filtering efficiency is improved. The top surface of the installed filter plate 140 abuts against the top surface of the housing 110, and the side surface abuts against the side surface of the housing 110, so that the filter plate 140 completely covers the overflow gap 121, thereby preventing the leakage of the electroplating sludge. In practical applications, the end face of the filter plate 140 may be covered with a filter cloth. The aperture of the filter holes on the filter cloth is small, the filtering and intercepting effect on the fine electroplating sludge is enhanced, and the effluent quality is improved. In practice, the partition plate 120 may be welded to the mounting plate 151 or the side wall of the housing 110, or the partition plate 120 may be positioned by a detachable structure such as a snap lock.

In addition, in some embodiments, the second barrier includes at least two barrier plates 160, the second filter hole is disposed on the barrier plate 160 with one side of the barrier plate 160 connected to the inner sidewall of the housing 110 and the other side of the barrier plate 160 connected to the outer sidewall of the draft tube 130. At least two baffle plates 160 are surrounded to form a mounting through hole matched with the outer diameter of the draft tube 130, one side of the baffle plate 160 is connected with the inner side wall of the shell 110, and the other side is connected with the outer side wall of the draft tube 130, so that the installation of the baffle plates 160 is facilitated. In this embodiment, the second blocking member includes two blocking plates 160, the two blocking plates 160 surround the installation through hole and are symmetrically disposed at two sides of the drainage tube 130, actually, the blocking plates 160 may be three, four, etc., and this embodiment does not specifically limit this.

Further, in some embodiments, a first supporting block 171 is formed on the inner side wall of the housing 110, a mounting groove extending in the horizontal direction is formed on the side surface of the first supporting block 171 facing the first cavity, one side of the blocking plate 160 extends into the mounting groove, a second supporting block 172 is formed on the outer side wall of the drainage tube 130, a groove is formed on the top surface of the second supporting block 172, and a protrusion cooperating with the groove is formed at the bottom of the other side of the blocking plate 160. Realize that separation plate 160 fixes a position fast on the horizontal direction, simple structure, when dismantling separation plate 160, upwards mentions one side that separation plate 160 is close to drainage tube 130, and it can to take separation plate 160 out in the recess again, makes things convenient for the dismouting, is convenient for wash.

Also, in some embodiments, the draft tube 130 is located at the middle of the first chamber, and the baffle plate 160 is gradually inclined downward toward a position away from the draft tube 130. Specifically, during the installation, place into first cavity along vertical direction earlier baffler 160, stretch into the mounting groove with baffler 160's bottom again, rotate baffler 160 again and go into second tray 172 with baffler 160's top side card on, make things convenient for baffler 160's extraction and installation, improve filter area, and drainage tube 130 is located the middle part of first cavity, make baffler 160's shape can be unanimous, reduce baffler 160's production forming cost, and the assurance is comparatively even around near drainage tube 130's rivers. In fact, the blocking plate 160 may be welded to the housing 110 and the drainage tube 130, respectively, or the blocking plate 160 is rotatably connected to the housing 110 and locked by a locking structure provided on the drainage tube 130, which is not particularly limited in this embodiment.

In addition, in the actual use, in order to reduce the impact of the introduced electroplating wastewater to the bottom of the first cavity, the utility model discloses still include reflecting plate 180, the top surface of reflecting plate 180 is just to the export of drainage tube 130. The electroplating sewage flowing out of the drainage tube 130 directly flows upwards after downwards rushing towards the top surface of the reflection plate 180, so that the newly introduced electroplating sewage is reduced, precipitates at the bottom of the first cavity are directly scattered, the deposition effect is improved, and the load of a subsequent electroplating sewage treatment process is reduced. It should be noted that the reflection plate 180 may be disposed on the housing 110 or on the draft tube 130, and a reflection space is provided between the outlet of the draft tube 130 and the reflection plate 180, so as to ensure that the electroplating wastewater can move in a direction away from the reflection plate 180 after striking the top surface of the reflection plate 180.

In some embodiments, the housing 110 is collapsed downward to form a hopper 190 at the bottom of the first cavity. The bottom of the first cavity is contracted, so that electroplating sludge with high density can be conveniently gathered in the mud bucket 190, and cleaning is facilitated. Moreover, the bottoms of the first cavity and the second cavity 123 can be respectively provided with an exhaust valve, so that the cleaning is convenient.

The above description is for the purpose of illustrating the preferred embodiments of the present invention, but the present invention is not limited to the illustrated embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope of the present invention defined by the appended claims.

Claims

1. A device for treating electroplating wastewater is characterized in that: the method comprises the following steps:

a shell (110) with a water inlet (111) and a water outlet (112) on the side wall;

the separation plate (120) is positioned in the shell (110), the bottom of the separation plate (120) is arranged on the inner bottom surface of the shell (110), the top of the separation plate (120) extends upwards, an overflow gap (121) is formed between the separation plate and the inner top surface of the shell (110), the separation plate (120) separates the interior of the shell (110) along the horizontal direction to form a first cavity and a second cavity (123), the water inlet (111) is communicated with the first cavity, and the water outlet (112) is communicated with the second cavity (123);

the first blocking piece covers the overflow gap (121), and a plurality of first filtering holes communicated with the first cavity and the second cavity (123) are formed in the first blocking piece.

2. An apparatus for treating wastewater from electroplating according to claim 1 and comprising: the direction from the first cavity to the second cavity (123) is taken as an overflow direction, the first barrier comprises a filter plate (140), two or more filter plates (140) are arranged at intervals along the overflow direction, the filter plate (140) covers the overflow gap (121), and the first filter holes are formed in the end face of the filter plate (140).

3. An apparatus for treating wastewater from electroplating according to claim 2, wherein: be equipped with stopper (152) on the inside wall of casing (110), be equipped with the opening that extends along upper and lower direction on stopper (152), the lateral part of filter (140) stretches into in the opening, the top surface of division board (120) is followed the overflow direction is equipped with mounting panel (151), mounting panel (151) surround the bottom of overflow clearance (121), the bottom surface of filter (140) with the top surface of mounting panel (151) offsets.

4. An apparatus for treating wastewater from electroplating according to claim 2, wherein: the end face of the filter plate (140) is covered with filter cloth.

5. An apparatus for treating wastewater from electroplating according to claim 1, wherein: still include second separation and drainage tube (130), second separation is located in the first cavity, second separation will first cavity divide into precipitation chamber (161) and filter chamber (162) from top to bottom, be equipped with a plurality of intercommunications on the second separation the precipitation chamber (161) with the second filtration pore of filter chamber (162), the upper end intercommunication of drainage tube (130) water inlet (111), the lower extreme intercommunication of drainage tube (130) the bottom of precipitation chamber (161).

6. An apparatus for treating wastewater from electroplating according to claim 5, wherein: the second barrier member comprises at least two barrier plates (160), the second filter hole is arranged on the barrier plate (160), one side of the barrier plate (160) is connected with the inner side wall of the shell (110), and the other side of the barrier plate (160) is connected with the outer side wall of the draft tube (130).

7. An apparatus for treating wastewater from electroplating according to claim 6 and further comprising: the inside wall of casing (110) forms first tray (171), first tray (171) are just right the side of first cavity is equipped with the mounting groove that extends along the horizontal direction, one side of baffler (160) stretches into in the mounting groove, the lateral wall of drainage tube (130) is formed with second tray (172), the top surface of second tray (172) is equipped with the recess, the bottom of the opposite side of baffler (160) be equipped with the lug that the recess was mutually supported.

8. An apparatus for treating wastewater from electroplating according to claim 6 or 7, wherein: the draft tube (130) is located at the middle of the first chamber, and the baffle plate (160) is gradually inclined downward toward a position away from the draft tube (130).

9. An apparatus for treating wastewater from electroplating according to claim 5 and further comprising: further comprising a reflective plate (180), a top surface of the reflective plate (180) facing the outlet of the draft tube (130).

10. An apparatus for treating wastewater from electroplating according to claim 1, wherein: the shell (110) is located at the bottom of the first cavity and shrinks downwards to form a mud bucket (190).