CN209872569U

CN209872569U - Industrial wastewater treatment device for power plant

Info

Publication number: CN209872569U
Application number: CN201920540318.7U
Authority: CN
Inventors: 顾鼎; 许羽; 朱亮
Original assignee: Taizhou Jintai Environmental Protection Thermoelectric Co Ltd
Current assignee: Taizhou Jintai Environmental Protection Thermoelectric Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2019-12-31
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses an industrial wastewater treatment 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 an industrial wastewater treatment device for power plant, through first filter chamber, second filter chamber, third filter chamber and have the backward flow filter chamber, effectual various desulfurization, the waste water of taking off the dirt of thermal power factory filter, fix the centralized processing that gets off with heavy metal contamination wherein.

Description

Industrial wastewater treatment device for power plant

Technical Field

The utility model relates to a purifier, concretely relates to effluent treatment plant.

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: the utility model aims to provide a be used for the industrial wastewater treatment device in power plant, facilitate the use to prior art not enough.

The technical scheme is as follows: a industrial wastewater treatment 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.

The water filtering plate of the second filtering chamber is provided with 2-4 rolling bases, the upper parts of the rolling bases are provided with semicircular accommodating grooves, a filtering roller is arranged above the semicircular accommodating groove, the rolling surface of the filtering roller is composed of a first mesh cylinder outside and a second mesh cylinder inside, a plurality of stirring plates are radially arranged at the axis of the second grid cylinder along the radial direction, the end parts of the plurality of stirring plates are all connected with the rotating shaft, the rotating shaft is connected with the rolling base through a bearing seat, a brushless motor used for driving the filtering roller is arranged at the joint of the rotating shaft and the bearing seat, a filter cloth layer with the filter hole aperture of 50-80 μm is filled between the first mesh cylinder and the second mesh cylinder, a water pump for accelerating the flow of wastewater is arranged between the two adjacent filtering rollers, and the included angle between the axial direction of a water spray opening of the water pump and the horizontal direction is 15-45 degrees.

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 an industrial wastewater treatment device for power plant, through first filter chamber, second filter chamber, third filter chamber and have the backward flow filter chamber, effectual various desulfurization, the waste water of taking off the dirt of thermal power factory filter, fix the centralized processing that gets off with heavy metal contamination wherein.

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 an industrial wastewater treatment device for power plant, including the first filter chamber 1, second filter chamber 2 and 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, 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 first filter chamber 1, first filter layer includes gravel layer, polypropylene fiber layer and porous ceramic, 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, 2-4 rolling bases 9 are arranged on the water filtering plates of the second filter chamber 2, a semicircular accommodating groove is arranged at the upper part of the rolling base 9, a filter roller 11 is arranged above the semicircular accommodating groove, the rolling surface of the filter roller 11 is composed of a first mesh cylinder 12 at the outer part and a second mesh cylinder 13 at the inner part, a plurality of stirring plates 14 are radially arranged at the axis of the second mesh cylinder 13, the end parts of the plurality of stirring plates 14 are connected with a rotating shaft 15, the rotating shaft 15 is connected with the rolling base 9 through a bearing seat 10, a motor 16 for driving the filter roller 11 is arranged at the joint of the rotating shaft 15 and the bearing seat 10, a filter cloth layer 17 with the filter hole diameter of 50-80 mu m is, a water pump 18 for accelerating the flow of waste water is arranged between two adjacent filtering rollers 11, an included angle between the axial direction of a water spray nozzle of the water pump 18 and the horizontal direction is 15-45 degrees, a bearing mounting frame 41 is arranged on the third filtering chamber 3, a power turbine blade fan 19 is arranged on one side of the bearing mounting frame 41, a driving transmission shaft 20 coaxially connected with the output end of the power turbine blade fan 19 is arranged on the other side of the bearing mounting frame 41, a plurality of driven transmission shafts 21 are further rotatably arranged on the other side of the bearing mounting frame 41, a driving gear 22 is arranged on the driving transmission shaft 20, a driven gear 23 is arranged on the driven transmission shaft 21, the driving gear 22 is in meshing transmission with the driven gear 23, a plurality of cylindrical independent mixing chambers 24 are arranged at the top of the third filtering chamber 3, a plurality of through holes are arranged on the side walls of the, The driven transmission shaft 21 is provided with a plurality of spoiler blades 25, the top of the third filtering chamber 3 is provided with a spraying pipe 26 extending along the top of each independent mixing chamber 24, 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 connected with a collecting pipe 29, a water quality detection part in the third filtering chamber 3 is a sensor 30 for detecting heavy metal content, 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, a joint of the backflow pipeline and the top of the water pumping barrel 31 is provided with two check valves 32 with opposite directions, the side wall of the water pumping barrel 31 is provided with a motor 33, an output shaft of the motor 33 is connected with an input end of a conical gear set 34, the backflow filtering part comprises a centrifugal cavity, the power shaft of the stirring mechanism 36 penetrates out of the outer wall of the water pumping barrel 31 through a sealed bearing, the output end of the bevel gear set 34 is connected to the power shaft through a chain, a through pipe 37 used for permeating heavy metals is arranged at the lowest part of the centrifugal cavity 35, a plurality of layers of permeable membranes are arranged in the through pipe 37, the through pipe 37 is connected to the top of the liquid accumulating barrel 38, a fiber cluster used for adsorbing heavy metals is filled in the liquid accumulating barrel 38, the output shaft of the motor 33 is connected with a bearing rod 39 through a belt, one end of the bearing rod 39 penetrates through the sealed bearing arranged on the side wall of the backflow pipeline and extends to the joint of the backflow pipeline and the first filtering chamber 1, the end is further provided with a propeller 40 used for preventing backflow, the other end of the bearing rod 39 is connected.

A treatment system for an industrial wastewater treatment plant of a power plant, comprising the steps of:

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 brushless motor 16 drives the filter drum 11 to rotate at high speed to pressurize the water in the filter drum 11, so that the waste water in the filter drum 11 is quickly thrown from the inside to the outside, and the waste water is further filtered to remove tiny impurities after passing through the filter cloth layer 17 with the aperture of the filter holes of 50-80 microns;

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

1. An industrial wastewater treatment device for a power plant, characterized in that: the filter comprises a first filter chamber, a second filter chamber and a third filter chamber which are sequentially arranged in a shell from bottom to top, wherein the first filter chamber, the second filter chamber and the third filter chamber are separated by a water filter plate, a backflow filter chamber is arranged between the second filter chamber and the third filter chamber, a static adsorption layer is arranged in the first filter chamber, a roller filter assembly is arranged in the second filter chamber, a dynamic precipitation layer is arranged in the third filter chamber, the backflow filter chamber is provided with a water quality detection part and a backflow filter part, the water filter plate of the second filter chamber is provided with 2-4 rolling bases, a semicircular accommodating groove is arranged on the upper part of each rolling base, a filter roller is arranged above the semicircular accommodating groove, a rolling surface of the filter roller is formed by an external first grid cylinder and an internal second grid cylinder, and a plurality of stirring plates are radially arranged at the axis of the second grid cylinder, the end parts of the plurality of stirring plates are connected with a rotating shaft, the rotating shaft is connected with a rolling base through a bearing seat, a brushless motor for driving the filtering rollers is arranged at the joint of the rotating shaft and the bearing seat, a filter cloth layer with the filter hole aperture of 50-80 mu m is filled between the first grid cylinder and the second grid cylinder, a water pump for accelerating the flow of waste water is arranged between the two adjacent filtering rollers, the included angle between the axial direction of a water spray opening of the water pump and the horizontal direction is 15-45 degrees, the third filtering chamber is provided with a bearing mounting rack, one side of the bearing mounting rack is provided with a power turbine blade fan, the other side of the bearing mounting rack is provided with a driving transmission shaft coaxially connected with the output end of the power turbine blade fan, the other side of the bearing mounting rack is also rotatably provided with a plurality of driven transmission shafts, the driving gear is in meshing transmission with driven gear, third filter chamber top is equipped with the independent mixing chamber of a plurality of tube-shapes, 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 transmission shaft, initiative transmission shaft, driven transmission 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 second storage tank, 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 industrial wastewater treatment plant for power plants 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 industrial wastewater treatment plant for power plants 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 industrial wastewater treatment 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 industrial wastewater treatment 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.