CN210150841U - Electroplating effluent solid-liquid quick separation equipment - Google Patents
Electroplating effluent solid-liquid quick separation equipment Download PDFInfo
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- CN210150841U CN210150841U CN201920038762.9U CN201920038762U CN210150841U CN 210150841 U CN210150841 U CN 210150841U CN 201920038762 U CN201920038762 U CN 201920038762U CN 210150841 U CN210150841 U CN 210150841U
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Abstract
The utility model belongs to the technical field of the environmental protection, concretely relates to electroplating effluent solid-liquid quick separation device, including rotary drum vacuum filter, rotary drum vacuum filter includes belt conveyor, scraper, vacuum filter, feed liquid at least and spills ware, gear motor, air compressor machine, vacuum pump, deareator silencer and filtrate separator, establishes the filter chamber in the vacuum filter, and air compressor machine or vacuum pump can be connected to the filter chamber, and the scraper is connected in the vacuum filter left side, and belt conveyor is located the left side below of scraper, and gear motor is connected on the vacuum filter right side, and one side of vacuum filter is located to feed liquid spills the ware, and air compressor machine is all connected to deareator silencer and filtrate separator. The problem of in the processing procedure of having solved current electroplating effluent, most all be flocculation and subside, coagulant aid and the flocculating agent that its introduced all are new pollutant, the effect of flocculation and subside is also uncontrollable, low in production efficiency, with high costs is solved, the utility model discloses the production is profitable, is fit for extensive technological application.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection, concretely relates to electroplating effluent solid-liquid quick separation equipment.
Background
Electroplating, as an important basic processing industry in China, can generate a large amount of wastewater in the electroplating process, most of the traditional solid-liquid rapid separation methods are flocculation sedimentation in the treatment process of electroplating wastewater, the coagulant aids and the flocculants introduced by the traditional solid-liquid rapid separation methods are new pollutants, and the flocculation sedimentation effect is uncontrollable. With the continuous improvement of the domestic environmental protection requirements, new solid-liquid rapid separation devices and methods need to be explored.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electroplating wastewater solid-liquid rapid separation device, which aims at overcoming the problems that most of the traditional solid-liquid rapid separation method is flocculation sedimentation, the coagulant aid and the flocculant introduced by the traditional solid-liquid rapid separation method are new pollutants, and the flocculation sedimentation effect is not controllable in the treatment process of electroplating wastewater in the prior art; the device and the method for quickly separating solid from liquid in the prior art are low in production efficiency and high in cost.
For this, the utility model provides an electroplating effluent solid-liquid quick separation device, including rotary drum vacuum filter, rotary drum vacuum filter includes belt conveyor, scraper, vacuum filter, feed liquid at least and spills ware, gear motor, air compressor machine, vacuum pump, deareator silencer and straining liquid separator, establishes the filter chamber in the vacuum filter, and air compressor machine or vacuum pump can be connected to the filter chamber, and the scraper is connected in the vacuum filter left side, and belt conveyor is located the left side below of scraper, and gear motor is connected on the vacuum filter right side, and one side of vacuum filter is located to the feed liquid spills the ware, and air compressor machine is all connected to deareator silencer and straining liquid separator.
The feed liquid sprayer can spray turbid electroplating wastewater to the vacuum filter.
The vacuum degree of the vacuum pump is 0.7-0.8 MPa.
The pressure of the air compressor is 0.5 MPa.
The preparation method of the turbid liquid of the electroplating wastewater comprises the following steps: firstly, the pH value of the electroplating wastewater is adjusted to 9-10 by using lime, and then activated carbon is added for precipitation, thus obtaining the electroplating wastewater.
The rotary drum type vacuum filter is used for carrying out solid-liquid separation on the turbid liquid of the electroplating wastewater after precipitation.
The adding amount of the activated carbon in the step 1) is 0.1-1 per mill of the total mass of the electroplating wastewater.
The particle of the active carbon is 100-325 meshes.
The active carbon comprises wood active carbon, coal active carbon or shell active carbon.
The solid-liquid separation time is 3-5 s.
The utility model has the advantages that: the utility model provides a quick solid-liquid separation device for electroplating wastewater, which skillfully utilizes a rotary drum type or disc type vacuum filter to replace the traditional sedimentation tank, compared with the conventional electroplating wastewater treatment method, the utility model has four advantages, the first advantage is that the electro-lime and the active carbon are added into the electroplating wastewater to solve the problem that the rotary drum type vacuum filter is easy to block; the second advantage is that the drum type vacuum filter has fast filtering speed, saves the settling time (generally 4-6 hours), and greatly improves the production efficiency; the third advantage is that the cheap and easily available calcium carbide replaces expensive liquid caustic soda and calcium hydroxide, so that the production cost is greatly saved; the fourth advantage is that the produced water obtained by the drum vacuum filter has lower turbidity than the effluent of the sedimentation tank, and the COD and the total oil content are lower; the fifth advantage is that a plate-and-frame filter behind the sedimentation tank is omitted, further reducing the production cost and labor cost. The utility model provides a quick separation device and method of electroplating effluent solid-liquid, the productivity effect is good, is fit for extensive technology application.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic view of a drum type vacuum filter.
Description of reference numerals: 1. a belt conveyor; 2. a scraper; 3. a vacuum filter; 4. a feed liquid sprayer; 5. a reduction motor; 6. an air compressor; 7. a vacuum pump; 8. a muffler of a gas-water separator; 9. a filtrate separator; 10. and (4) a filtering chamber.
Detailed Description
Example 1:
the utility model provides an electroplating effluent solid-liquid quick separation device, including rotary drum vacuum filter, rotary drum vacuum filter includes belt conveyor 1 at least, scraper 2, vacuum filter 3, the feed liquid spills ware 4, gear motor 5, air compressor machine 6, vacuum pump 7, deareator silencer 8 and filtrate separator 9, establish filter chamber 10 in the vacuum filter 3, filter chamber 10 can connect air compressor machine 6 or vacuum pump 7, scraper 2 is connected in the 3 left sides of vacuum filter, belt conveyor 1 is located scraper 2's left side below, gear motor 5 is connected on the 3 right sides of vacuum filter, feed liquid spills ware 4 and locates one side of vacuum filter 3, deareator silencer 8 and filtrate separator 9 all connect air compressor machine 6. The feed liquid sprayer 4 can spray the turbid liquid of the electroplating wastewater to the vacuum filter 3. The vacuum degree of the vacuum pump 7 is 0.7-0.8 MPa. The pressure of the air compressor 6 is 0.5 MPa.
The working principle of the rotary drum type vacuum filter is as follows: the turbid liquid is conveyed to a liquid storage tank of a rotary drum type vacuum filter and a feed liquid sprayer 4, the lower part of a rotary drum of the rotary drum type vacuum filter is immersed in the liquid storage tank to slowly rotate during filtering, a filter chamber 10 of a vacuum filter 3 is connected with a vacuum pump 7 (the vacuum degree is 0.7-0.8MPa), filtrate in the liquid storage tank and filtrate sprayed out of the feed liquid sprayer 4 are sucked out of the vacuum filter 3, and solid particles are adsorbed on a filter surface to form filter residue; when the filter chamber 10 rotates to a position above the liquid level, the feed liquid is continuously supplied to the vacuum filter 3 through the feed liquid sprayer 4 to improve the filtering efficiency, along with the continuous filtering, the part of the filter residue with the thickness exceeding the scraper 2 can be discharged, the discharged filter residue is conveyed out through the belt conveyor 1, the filter chamber 10 contacting the scraper 2 is connected with the air compressor 6 (with the pressure of 0.5MPa), the filter residue is loosened through the back flushing filter cloth, and the filter cloth pore can be dredged to regenerate. The drum vacuum filter is one kind of universal matched filtering apparatus, and is used mainly in filtering cooling liquid in metal grinding and other machining and in cleaning liquid, industrial water, organic solution and other solution of blank part cleaning system. It is a key device for saving resources and preventing public nuisance; the rotary drum vacuum filter passes through the filter cloth by the gravity of the liquid and the vacuum negative pressure to isolate impurities, thereby achieving the aim of purifying the liquid. The filter cloth has the advantages of increased depth of the liquid pool, higher utilization rate of filter cloth, less occupied space and lower operation cost. The utility model discloses compare with current vacuum filter and still increased a set of feed liquid and sprinkle ware 4, it is higher than current vacuum filter filtration efficiency.
The preparation method of the turbid liquid of the electroplating wastewater comprises the following steps: firstly, the pH value of the electroplating wastewater is adjusted to 9-10 by using lime, and then activated carbon is added for precipitation, thus obtaining the electroplating wastewater. The cheap and easily obtained calcium carbide replaces the traditional liquid caustic soda or calcium hydroxide to adjust the pH value, so that the production cost can be greatly reduced;
the rotary drum type vacuum filter is used for carrying out solid-liquid separation on the turbid liquid of the electroplating wastewater after precipitation. The existence of the calcium carbide and the active carbon solves the problem that the rotary drum type vacuum filter is easy to block, and the removal rate of COD and total oil of the electroplating wastewater respectively reaches about 60 percent and 80 percent.
The adding amount of the activated carbon in the step 1) is 0.1-1 per mill of the total mass of the electroplating wastewater. The particle of the active carbon is 100-325 meshes. The active carbon comprises wood active carbon, coal active carbon or shell active carbon. The active carbon comprises wood active carbon, coal active carbon or shell active carbon. The cost of the active carbon is low, and the problem that the rotary drum type vacuum filter is easy to block is solved by the calcium carbide and the active carbon.
The solid-liquid separation time is 3-5 s. The solid-liquid separation time is 3-5 s. The filtering speed of the drum type vacuum filter is very fast, the solid-liquid separation time is shortened, meanwhile, the precipitation time (generally 4-6 hours) is saved, and the production efficiency is greatly improved.
Example 2:
a device for quickly separating solid from liquid in electroplating wastewater comprises a rotary drum type vacuum filter, and a method for quickly separating solid from liquid comprises the following steps:
1) pumping the electroplating wastewater into a reaction tank, adjusting the pH of the electroplating wastewater to 9.5 by using lime, and then adding activated carbon for precipitation; the adding amount of the active carbon is 1 per mill of the total mass of the electroplating wastewater, the particle of the active carbon is 200 meshes, and the material of the active carbon is coal-based active carbon.
2) Pumping the turbid solution of the electroplating wastewater precipitated in the step 1) into a rotary drum type vacuum filter for filtering, wherein the time for solid-liquid separation by filtering is 4s, the vacuum degree of a vacuum pump 7 is 0.7MPa, the pressure of an air compressor 6 is 0.5MPa, and the water quality detection data of a water sample filtered by the rotary drum type vacuum filter and the effluent of a sedimentation tank are shown in Table 1.
Table 1: water quality comparison of filtered water of drum vacuum filter and effluent of sedimentation tank
In the above embodiment, compared with the raw electroplating wastewater, the COD and total oil contents of the water sample filtered by the drum-type vacuum filter are respectively reduced by 56.1% and 82.5%, the removal rates of the COD and the total oil are obviously higher than that of the effluent of the sedimentation tank, and the turbidity of the filtered water of the drum-type vacuum filter is obviously lower than that of the effluent of the sedimentation tank.
Example 3:
a device for quickly separating solid from liquid in electroplating wastewater comprises a rotary drum type vacuum filter, and a method for quickly separating solid from liquid comprises the following steps:
1) pumping the electroplating wastewater into a reaction tank, adjusting the pH of the electroplating wastewater to 9.0 by using lime, and then adding activated carbon for precipitation; the adding amount of the active carbon is 0.1 per mill of the total mass of the electroplating wastewater, the particle of the active carbon is 100 meshes, and the material of the active carbon is wood active carbon.
2) Pumping the turbid solution of the electroplating wastewater precipitated in the step 1) into a rotary drum type vacuum filter for filtering, wherein the time for solid-liquid separation by filtering is 3s, the vacuum degree of a vacuum pump 7 is 0.75MPa, the pressure of an air compressor 6 is 0.5MPa, and the water quality detection data of a water sample filtered by the rotary drum type vacuum filter and the effluent of a sedimentation tank are shown in Table 2.
Table 2: water quality comparison of filtered water of drum vacuum filter and effluent of sedimentation tank
In the above embodiment, compared with the raw electroplating wastewater, the COD and total oil contents of the water sample filtered by the drum-type vacuum filter are respectively reduced by 58.9% and 83.9%, the removal rates of the COD and the total oil are obviously higher than that of the effluent of the sedimentation tank, and the turbidity of the filtered water of the drum-type vacuum filter is obviously lower than that of the effluent of the sedimentation tank.
Example 4:
a device for quickly separating solid from liquid in electroplating wastewater comprises a rotary drum type vacuum filter, and a method for quickly separating solid from liquid comprises the following steps:
1) pumping the electroplating wastewater into a reaction tank, adjusting the pH of the electroplating wastewater to 10.0 by using lime, and then adding activated carbon for precipitation; the adding amount of the active carbon is 0.5 per mill of the total mass of the electroplating wastewater, the particle of the active carbon is 325 meshes, and the material of the active carbon is nutshell active carbon.
2) Pumping the turbid solution of the electroplating wastewater precipitated in the step 1) into a rotary drum type vacuum filter for filtering, wherein the time for solid-liquid separation by filtering is 5s, the vacuum degree of a vacuum pump 7 is 0.8MPa, the pressure of an air compressor 6 is 0.5MPa, and the water quality detection data of a water sample filtered by the rotary drum type vacuum filter and the effluent of a sedimentation tank are shown in Table 3.
Table 3: water quality comparison of filtered water of drum vacuum filter and effluent of sedimentation tank
In the above embodiment, compared with the raw electroplating wastewater, the COD and total oil contents of the water sample filtered by the drum-type vacuum filter are respectively reduced by 58.9% and 81.5%, the removal rates of the COD and the total oil are obviously higher than that of the effluent of the sedimentation tank, and the turbidity of the filtered water of the drum-type vacuum filter is obviously lower than that of the effluent of the sedimentation tank.
In the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "left", "right", etc., it is based on the orientation or positional relationship shown in the drawings, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The above illustration is merely an illustration of the present invention, and does not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (3)
1. The utility model provides an electroplating effluent solid-liquid quick separation equipment which characterized in that: including rotary drum formula vacuum filter, rotary drum formula vacuum filter includes belt conveyor (1), scraper (2), vacuum filter (3) at least, the feed liquid sprinkles ware (4), gear motor (5), air compressor machine (6), vacuum pump (7), deareator silencer (8) and straining liquid separator (9), establish filter chamber (10) in vacuum filter (3), air compressor machine (6) or vacuum pump (7) can be connected in filter chamber (10), scraper (2) are connected in vacuum filter (3) left side, belt conveyor (1) is located the left side below of scraper (2), gear motor (5) are connected on vacuum filter (3) right side, one side of vacuum filter (3) is located in feed liquid sprinkles ware (4), air compressor machine (6) are all connected with straining liquid separator (9) to deareator silencer (8).
2. The solid-liquid rapid separation device for electroplating wastewater according to claim 1, characterized in that: the feed liquid sprayer (4) can spray the turbid liquid of the electroplating wastewater to the vacuum filter (3).
3. The solid-liquid rapid separation device for electroplating wastewater according to claim 2, characterized in that: the rotary drum type vacuum filter is used for carrying out solid-liquid separation on the turbid liquid of the electroplating wastewater after precipitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920038762.9U CN210150841U (en) | 2019-01-10 | 2019-01-10 | Electroplating effluent solid-liquid quick separation equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920038762.9U CN210150841U (en) | 2019-01-10 | 2019-01-10 | Electroplating effluent solid-liquid quick separation equipment |
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| CN210150841U true CN210150841U (en) | 2020-03-17 |
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| CN201920038762.9U Active CN210150841U (en) | 2019-01-10 | 2019-01-10 | Electroplating effluent solid-liquid quick separation equipment |
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