CN209872568U - Wastewater decontamination and heavy metal removal device for power plant - Google Patents
Wastewater decontamination and heavy metal removal device for power plant Download PDFInfo
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- CN209872568U CN209872568U CN201920539471.8U CN201920539471U CN209872568U CN 209872568 U CN209872568 U CN 209872568U CN 201920539471 U CN201920539471 U CN 201920539471U CN 209872568 U CN209872568 U CN 209872568U
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- filtering chamber
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Abstract
The utility model discloses a waste water takes off dirt and takes off heavy metal device for power plant, including first filter chamber, second filter chamber and the third filter chamber that sets gradually by supreme down in the casing, separate through the drainage board between first filter chamber, second filter chamber and the third filter chamber, be equipped with the backward flow filter chamber between second filter chamber and the third filter chamber, be equipped with static adsorbed layer in the first filter chamber, the second filter chamber is equipped with aeration equipment and hydrojet device, the third filter chamber is equipped with the dynamic precipitation layer, the backward flow filter chamber is equipped with water quality testing portion and backward flow filter portion. The utility model discloses a waste water takes off dirty heavy metal removal device for power plant, through first filter chamber, second filter chamber, third filter chamber and have the backward flow filter chamber, effectual various desulfurization of thermal power factory, the waste water of taking off dirty filter, fixes the heavy metal pollutant wherein and gets off centralized processing.
Description
Technical Field
The utility model relates to a purifier, concretely relates to it takes off heavy metal device to take off dirt.
Background
At present, in various desulfurization modes of a thermal power plant, wet desulfurization of boiler flue gas occupies a larger and larger proportion due to high desulfurization efficiency, but the process has the defects that waste water is generated, the pH value of the waste water is 5-6, a large amount of suspended matters (gypsum particles, SO2, Al and iron hydroxides), fluoride and heavy metal elements such As As, Cd, Cr, Cu, Hg, Ni, Pb, Sb, Se, Sn and Zn are contained, and the domestic power plant desulfurization mostly adopts a limestone-gypsum wet method treatment process. The flue gas contains a small amount of F & lt- & gt, Cl & lt- & gt and various impurities brought by raw coal, the F & lt- & gt, the Cl & lt- & gt and various impurities enter a desulfurization absorption tower, and then are washed and enter slurry, the combined action of the F & lt- & gt and aluminum in the slurry has shielding influence on the dissolution of limestone of a desulfurization absorbent, so that the solubility of the limestone is weakened, and the desulfurization efficiency is reduced; meanwhile, the absorption tower system and structure are corroded by over-high Cl < - > concentration. Therefore, the limestone-gypsum wet flue gas desulfurization process usually requires discharging a part of filtrate water (generated after the slurry in the absorption tower is dehydrated) as desulfurization wastewater, so as to achieve the purposes of controlling the concentration of Cl and F ions and maintaining the material balance of the absorption tower. Because the water quality is special and the pollution is strong, the desulfurization waste water must be treated separately to be discharged, otherwise, the environment is polluted greatly. In addition, in order to improve the comprehensive utilization rate of water resources, various kinds of drainage such as reverse osmosis concentrated water, circulating system sewage and the like are generally used as water sources of the wet flue gas desulfurization system process in the power plant, so that the advanced treatment of wastewater generated by sewage and heavy metal removal is performed, and the realization of zero emission of the wastewater becomes a new challenge for planning design and environment-friendly upgrading and reconstruction work of the coal-fired power plant.
Disclosure of Invention
The purpose of the invention is as follows: an object of the utility model is to provide a waste water takes off dirty heavy metal device that takes off for power plant not enough to prior art, facilitate the use.
The technical scheme is as follows: a waste water takes off dirt and takes off heavy metal device for power plant, including first filter chamber, second filter chamber and the third filter chamber that sets gradually by supreme down in the casing, separate through the drainage board between first filter chamber, second filter chamber and the third filter chamber, be equipped with the backward flow filter chamber between second filter chamber and the third filter chamber, be equipped with static adsorbed layer in the first filter chamber, the second filter chamber is equipped with aeration equipment and hydrojet device, the third filter chamber is equipped with dynamic precipitation layer, the backward flow filter chamber is equipped with water quality testing portion and backward flow filter portion.
The filter comprises a first filter layer and a second filter layer, wherein the first filter layer comprises a gravel layer, a polypropylene fiber layer and porous ceramics, the gravel layer, the polypropylene fiber layer and the porous ceramics are clamped and fixed through a steel wire mesh, the second filter layer comprises an activated carbon filter layer, the activated carbon filter layer comprises a plurality of compressed octahedral carbon blocks, nano ceramic particles are filled in gaps between the octahedral carbon blocks, and a water inlet pipe is arranged at the bottom of the first filter chamber.
Aeration equipment, hydrojet device symmetry in the second filter chamber set up, aeration equipment includes the aeration section of thick bamboo, be equipped with the gas injection dish in the aeration section of thick bamboo, the gas injection dish has liquid overflow chamber through pipe connection, liquid overflow chamber middle part is connected with the pipeline that feeds through in first filter chamber top, liquid overflow chamber top has the air pump through the pipeline intercommunication, the air pump is connected with and is used for the filtration jar, be equipped with gas compressor and oxygen molecular sieve in the filtration jar, the hydrojet device includes the liquid injection dish, the liquid injection dish has the liquid force (forcing) pump through pipe connection, the liquid force (forcing) pump passes through pipe connection in first medicine storage tank, the surface jet orifice of gas injection dish and liquid injection dish is honeycomb.
The third filter chamber is provided with a bearing mounting frame, one side of the bearing mounting frame is provided with a power turbine fan, the other side of the bearing mounting frame is provided with a driving transmission shaft coaxially connected with the output end of the power turbine fan, the other side of the bearing mounting frame is also provided with a plurality of driven transmission shafts in a rotating way, the driving transmission shaft is provided with a driving gear, the driven transmission shafts are provided with driven gears, the driving gear is meshed with the driven gears for transmission, the top of the third filter chamber is provided with a plurality of cylindrical independent mixing chambers, the side wall of each independent mixing chamber is provided with a plurality of through holes, the axes of the independent mixing chambers are arranged corresponding to the axes of the driving transmission shaft and the driven transmission shafts, the driving transmission shaft and the driven transmission shafts are both provided with a plurality of turbulence blades, the top of the third filter chamber is, and a plurality of water outlet pipes are arranged at the top of each independent mixing chamber and are connected to the collecting pipe.
The water quality testing portion in the third filter chamber is a sensor for detecting heavy metal content, the backflow filter chamber comprises a water pumping barrel, the top of the water pumping barrel is provided with a backflow pipeline which leads to the first filter chamber and the third filter chamber respectively, the backflow pipeline is connected with a joint of the top of the water pumping barrel and is provided with two one-way valves with opposite directions, the side wall of the water pumping barrel is provided with a motor, an output shaft of the motor is connected with an input end of a bevel gear set, the backflow filter portion comprises a centrifugal cavity in the middle of the water pumping barrel, an agitating mechanism is rotatably arranged in the centrifugal cavity, a power shaft of the agitating mechanism penetrates out of the outer wall of the water pumping barrel through a sealing bearing, an output end of the bevel gear set is connected with the power shaft through a chain, a through pipe for permeating heavy metal is arranged at the lowest part of the, the effusion cylinder is filled with the fiber cluster that is used for adsorbing the heavy metal.
The output shaft of motor is connected with the bearing pole through the belt, bearing pole one end is passed and is located the sealed bearing of backflow pipeline lateral wall to extend to the junction of backflow pipeline and first filter chamber, this end still is equipped with the screw that is used for anti-return, the bearing pole other end is connected in the pump bowl outer wall through flexible compensation bearing.
The sensor is connected with the motor through the singlechip and the variable frequency controller.
Has the advantages that: the utility model discloses a waste water of power plant takes off dirty heavy metal removal device, through first filter chamber, second filter chamber, third filter chamber and have the backward flow filter chamber, effectual various desulfurization of thermal power factory, the waste water of taking off the dirt filters, fixes the heavy metal pollutant wherein and gets off centralized processing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention is explained in detail below, but the scope of protection of the present invention is not limited to the embodiments.
As shown in figure 1, the utility model discloses a waste water decontamination heavy metal removal device for power plant, including the first filter chamber 1, the second filter chamber 2 and the third filter chamber 3 that set gradually from bottom to top in the casing, separate through water strainer plate 4 between first filter chamber 1, the second filter chamber 2 and the third filter chamber 3, be equipped with backward flow filter chamber 5 between second filter chamber 2 and the third filter chamber 3, be equipped with static adsorption layer in the first filter chamber 1, second filter chamber 2 is equipped with aeration equipment and hydrojet device, third filter chamber 3 is equipped with dynamic precipitation layer, backward flow filter chamber 5 is equipped with water quality testing portion and backward flow filter portion, be equipped with first filter layer 6 and second filter layer 7 in the first filter chamber 1, the first filter layer includes the gravel layer, polypropylene fiber layer and porous ceramic, the gravel layer, it is fixed to press from both sides through the wire net between polypropylene fiber layer and the porous ceramic, the second filter layer 7 comprises an active carbon filter layer, the active carbon filter layer comprises a plurality of compressed regular octahedral carbon blocks, nano ceramic particles are filled in gaps among the regular octahedral carbon blocks, a water inlet pipe 8 is arranged at the bottom of the first filter chamber 1, an aeration device and a liquid spraying device in the second filter chamber 2 are symmetrically arranged, the aeration device comprises an aeration cylinder 9, a gas injection disc 10 is arranged in the aeration cylinder 9, the gas injection disc 10 is connected with a liquid overflow chamber 11 through a pipeline, the middle part of the liquid overflow chamber 11 is connected with a pipeline communicated with the top of the first filter chamber 1, the top of the liquid overflow chamber 11 is communicated with an air pump 12 through a pipeline, the air pump 12 is connected with an air filter tank 13, a gas compressor 14 and an oxygen molecular sieve 15 are arranged in the air filter tank 13, the liquid spraying device comprises a liquid injection disc 16, the liquid injection disc 16 is connected with a liquid pressurizing pump 17 through a pipeline, the surface jet holes of the gas jet disc 10 and the liquid jet disc 16 are cellular, the third filter chamber 3 is provided with a bearing mounting frame 41, one side of the bearing mounting frame 41 is provided with a power turbine blade fan 19, the other side of the bearing mounting frame 41 is provided with a driving transmission shaft 20 coaxially connected with the output end of the power turbine blade fan 19, the other side of the bearing mounting frame 41 is also rotatably provided with a plurality of driven transmission shafts 21, the driving transmission shaft 20 is provided with a driving gear 22, the driven transmission shafts 21 are provided with driven gears 23, the driving gear 22 is in meshed transmission with the driven gears 23, the top of the third filter chamber 3 is provided with a plurality of cylindrical independent mixing chambers 24, the side walls of the independent mixing chambers 24 are provided with a plurality of through holes, the axes of the independent mixing chambers 24 are arranged corresponding to the axes of the driving transmission shaft 20 and the driven transmission shafts 21, the driving transmission shaft 20 and the driven, the spraying pipe 26 is connected with a second medicine storage tank 27, the top of each independent mixing chamber 24 is provided with a plurality of water outlet pipes 28, the plurality of water outlet pipes 28 are all connected with a collecting pipe 29, the water quality detection part in the third filtering chamber 3 is a sensor 30 for detecting the content of heavy metals, the backflow filtering chamber 5 comprises a water pumping barrel 31, the top of the water pumping barrel 31 is provided with backflow pipelines respectively leading to the first filtering chamber 1 and the third filtering chamber 3, the joint of the backflow pipeline and the top of the water pumping barrel 31 is provided with two one-way valves 32 with opposite directions, the side wall of the water pumping barrel 31 is provided with a motor 33, the output shaft of the motor 33 is connected with the input end of a bevel gear set 34, the backflow filtering part comprises a centrifugal cavity 35 in the middle of the water pumping barrel 31, a stirring mechanism 36 is rotatably arranged in the centrifugal cavity 35, the power shaft of the stirring mechanism 36 penetrates, centrifugal chamber 35 is equipped with the siphunculus 37 that is used for permeating the heavy metal in the below most, be equipped with a plurality of layers of osmotic membranes in the siphunculus 37, siphunculus 37 is connected in hydrops section of thick bamboo 38 top, it has the fibre group that is used for adsorbing the heavy metal to fill in hydrops section of thick bamboo 38, the output shaft of motor 33 is connected with bearing rod 39 through the belt, the sealed bearing of locating the backflow pipeline lateral wall is passed to bearing rod 39 one end, and extend to the junction of backflow pipeline and first filter chamber 1, this end still is equipped with the screw 40 that is used for anti-return, the bearing rod 39 other end is connected in a 31 outer walls of drinking-.
A treatment system for a wastewater decontamination and heavy metal removal device of a power plant comprises the following steps:
step 1: the waste gas treatment water enters the first filter chamber 1 through a water inlet pipe, and particulate matters and suspended matters contained in the waste gas treatment water are filtered through a filter layer 6 and a second filter layer 7;
step 2: the treated waste gas treatment water enters the second filter chamber 2, the gas compressor 14 is started and compresses air, nitrogen and oxygen of the air are further separated, high-density oxygen is conveyed to the gas injection disc 10 through the oxygen molecular sieve 15, organic pollutants in the waste gas treatment water are purified in the jet aeration process, meanwhile, a liquid pressurizing pump 17 discharges the precipitated liquid medicine in the first medicine storage tank 18, and the precipitated liquid medicine is mixed with the waste gas treatment water through the liquid injection disc 16 to carry out primary precipitation;
and step 3: the treated waste gas treatment water continuously enters the third filter chamber 3 upwards, the upward water flow drives the power turbine blade fan 19 to rotate, the rotating power turbine blade fan 19 drives the driving transmission shaft 20 to rotate, the driving transmission shaft 20 drives the driven transmission shaft 21 to rotate through a gear, meanwhile, the pesticide spraying pipe 26 sprays pesticide into each independent mixing chamber 24 below the driving transmission shaft, and the turbulence blades 25 stir local liquid in each independent mixing chamber 24 at a high speed;
and 4, step 4: the sensor 30 monitors the heavy metal content in the waste gas treatment water entering the third filter chamber 3 in real time, when the heavy metal content exceeds a set threshold value, the motor 33 is started to drive the stirring mechanism 36 in the centrifugal chamber 35 to rotate at high speed, the waste gas treatment water containing excessive heavy metals is centrifuged, the heavy metals enter the liquid accumulation barrel through the permeable membrane in the through pipe 37 due to the centrifugal effect, the waste gas treatment water after backflow treatment flows to the first filter chamber 1 through the backflow pipeline through the one-way valve 32, the step 1 is repeated, and the waste water subjected to desulfurization and decontamination in the thermal power plant is effectively filtered through the first filter chamber 1, the second filter chamber 2, the third filter chamber 3 and the backflow filter chamber 5, so that the heavy metal pollutants in the waste gas treatment water are fixed and treated in a centralized manner.
As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a waste water takes off dirty heavy metal device that takes off for power plant which characterized in that: the device comprises a first filtering chamber, a second filtering chamber and a third filtering chamber which are sequentially arranged in a shell from bottom to top, wherein the first filtering chamber, the second filtering chamber and the third filtering chamber are separated by a water filtering plate, a backflow filtering chamber is arranged between the second filtering chamber and the third filtering chamber, a static adsorption layer is arranged in the first filtering chamber, an aeration device and a liquid spraying device are arranged in the second filtering chamber, a dynamic precipitation layer is arranged in the third filtering chamber, the backflow filtering chamber is provided with a water quality detection part and a backflow filtering part, the aeration device and the liquid spraying device in the second filtering chamber are symmetrically arranged, the aeration device comprises an aeration barrel, a gas spraying disc is arranged in the aeration barrel, the gas spraying disc is connected with a liquid overflow cavity through a pipeline, the middle part of the liquid overflow cavity is connected with a pipeline communicated with the top of the first filtering chamber, and the top of the liquid overflow cavity, the air pump is connected with and is used for the filtration jar, be equipped with gas compressor and oxygen molecular sieve in the filtration jar, hydrojet device includes the liquid jet dish, the liquid jet dish has liquid force (forcing) pump through the pipe connection, the liquid force (forcing) pump passes through the pipe connection in first medicine storage tank, the surface jet orifice of gas jet dish and liquid jet dish is cellular, the third filter chamber is equipped with the bearing installation frame, bearing installation frame one side is equipped with power turbine leaf fan, the bearing installation frame opposite side is equipped with the initiative transmission shaft of coaxial coupling in power turbine leaf fan output, the bearing installation frame opposite side still is rotationally equipped with a plurality of driven transmission shafts, the initiative transmission shaft is equipped with the driving gear, driven transmission shaft is equipped with driven gear, driving gear and driven gear meshing transmission, third filter chamber top is equipped with the independent mixing chamber of a plurality of tube-, independent mixing chamber lateral wall is equipped with a plurality of through-holes, the axis of independent mixing chamber sets up corresponding to the axis of initiative transmission shaft, driven drive shaft, initiative transmission shaft, driven drive shaft all are equipped with a plurality of vortex blades, third filter chamber top is equipped with the spray pipe that extends along each independent mixing chamber top, the spray pipe is connected with the second and stores up the medicinal cupping, each independent mixing chamber top is equipped with a plurality of outlet pipes, a plurality of outlet pipes all connect in the collecting pipe.
2. The wastewater depolluting and heavy metal removing apparatus for power plant according to claim 1, characterized in that: the filter comprises a first filter layer and a second filter layer, wherein the first filter layer comprises a gravel layer, a polypropylene fiber layer and porous ceramics, the gravel layer, the polypropylene fiber layer and the porous ceramics are clamped and fixed through a steel wire mesh, the second filter layer comprises an activated carbon filter layer, the activated carbon filter layer comprises a plurality of compressed octahedral carbon blocks, nano ceramic particles are filled in gaps between the octahedral carbon blocks, and a water inlet pipe is arranged at the bottom of the first filter chamber.
3. The wastewater depolluting and heavy metal removing apparatus for power plant according to claim 1, characterized in that: the water quality testing portion in the third filter chamber is a sensor for detecting heavy metal content, the backflow filter chamber comprises a water pumping barrel, the top of the water pumping barrel is provided with a backflow pipeline which leads to the first filter chamber and the third filter chamber respectively, the backflow pipeline is connected with a joint of the top of the water pumping barrel and is provided with two one-way valves with opposite directions, the side wall of the water pumping barrel is provided with a motor, an output shaft of the motor is connected with an input end of a bevel gear set, the backflow filter portion comprises a centrifugal cavity in the middle of the water pumping barrel, an agitating mechanism is rotatably arranged in the centrifugal cavity, a power shaft of the agitating mechanism penetrates out of the outer wall of the water pumping barrel through a sealing bearing, an output end of the bevel gear set is connected with the power shaft through a chain, a through pipe for permeating heavy metal is arranged at the lowest part of the, the effusion cylinder is filled with the fiber cluster that is used for adsorbing the heavy metal.
4. The wastewater depolluting and heavy metal removing apparatus for power plant according to any one of claims 1 to 3, characterized in that: the output shaft of motor has the bearing pole through belt connection, bearing pole one end is passed and is located the sealed bearing of backflow pipeline lateral wall to extend to the junction of backflow pipeline and first filter chamber, this end still is equipped with the screw that is used for anti-return, the bearing pole other end is connected in the pumping cylinder outer wall through flexible compensation bearing.
5. The wastewater depolluting and heavy metal removing apparatus for power plant according to any one of claims 1 to 3, characterized in that: the sensor is connected with the motor through the singlechip and the variable frequency controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539471.8U CN209872568U (en) | 2019-04-19 | 2019-04-19 | Wastewater decontamination and heavy metal removal device for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539471.8U CN209872568U (en) | 2019-04-19 | 2019-04-19 | Wastewater decontamination and heavy metal removal device for power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209872568U true CN209872568U (en) | 2019-12-31 |
Family
ID=68961343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920539471.8U Expired - Fee Related CN209872568U (en) | 2019-04-19 | 2019-04-19 | Wastewater decontamination and heavy metal removal device for power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209872568U (en) |
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2019
- 2019-04-19 CN CN201920539471.8U patent/CN209872568U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |