CN115520956A - Denitrification device for urban domestic sewage and denitrification method thereof - Google Patents
Denitrification device for urban domestic sewage and denitrification method thereof Download PDFInfo
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- CN115520956A CN115520956A CN202211343808.0A CN202211343808A CN115520956A CN 115520956 A CN115520956 A CN 115520956A CN 202211343808 A CN202211343808 A CN 202211343808A CN 115520956 A CN115520956 A CN 115520956A
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- 239000010865 sewage Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 111
- 239000012670 alkaline solution Substances 0.000 claims abstract description 92
- 238000010438 heat treatment Methods 0.000 claims abstract description 73
- 238000004140 cleaning Methods 0.000 claims abstract description 69
- 239000000126 substance Substances 0.000 claims abstract description 18
- 239000006210 lotion Substances 0.000 claims abstract description 14
- 239000002244 precipitate Substances 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 78
- 238000003756 stirring Methods 0.000 claims description 52
- 230000033001 locomotion Effects 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 238000006396 nitration reaction Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 12
- 239000010840 domestic wastewater Substances 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 abstract description 58
- 238000009835 boiling Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000003513 alkali Substances 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000013078 crystal Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000013049 sediment Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Extraction Or Liquid Replacement (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a denitrification device for urban domestic sewage and a denitrification method thereof, wherein the device comprises an installation rack, at least one group of reaction barrels symmetrically installed on the installation rack, a connecting pipe used for connecting the reaction barrels, a cleaning mechanism arranged on the installation rack and positioned in the reaction barrels in part of area, and an alkaline substance adding mechanism symmetrically installed on the installation rack; the cleaning mechanism is used for cleaning precipitates on the inner wall of the reaction barrel; the alkaline substance adding mechanism is used for adding alkaline solution with a set dose into the reaction barrel through a dosing port arranged on the reaction barrel; this device can be real-timely monitors the solution temperature in the sleeve pipe through thermodetector, and then can in time adjust the temperature of solution, wherein heats the sleeve pipe through placing the bath lotion in being responsible for, has avoided the heating pipe to make the temperature of the alkaline solution in the sleeve pipe too high, and has avoided alkaline solution to be in the boiling state, and then has avoided spilling over of solution.
Description
Technical Field
The invention relates to a domestic sewage denitrification device, in particular to a denitrification device for urban domestic sewage, and relates to the technical field of sewage denitrification.
Background
The eutrophication of water body can be caused by the discharge of a large amount of nitrogen element, so that the ammonia nitrogen is taken as one of the important assessment indexes for evaluating the treatment effect of the sewage treatment plant in China. At present, biological nitrogen removal is mainly used for sewage treatment, and the nitrogen removal principle is that nitrogen elements in sewage are converted into harmless nitrogen through aerobic nitrification and anoxic denitrification.
But current sewage denitrogenation still has some problems, in order to remove the nitrogen element in the sewage, and then sewage need be earlier through good oxygen nitration reaction, then after oxygen deficiency denitrification reaction again, and then can turn into the gas outgoing with the nitrogen element of aquatic, but in the actual operation in-process, local quality of water is softer or leads to the pH value of sewage to descend in the nitration, and the pH value that descends can lead to the speed reduction of nitration, and then when pH value is about 6, nitration stops, and then can influence sewage denitrogenation's efficiency.
In order to solve the problems, in the denitrification process, some enterprises can put alkaline solution into a sewage reaction container, so as to improve the pH value of sewage, and avoid the stopping of nitration reaction caused by too low pH value, and in the selection process, sodium hydroxide is usually selected as the solute of the alkaline solution, so as to complete the adding work of the alkaline solution.
Therefore, how to reduce the precipitation amount of sodium hydroxide crystals from the solution is a problem to be solved at present.
Disclosure of Invention
The purpose of the invention is as follows: provides a denitrification device for urban domestic sewage, which aims to solve the problems in the prior art.
The technical scheme is as follows: a denitrification device for urban domestic sewage comprises:
the device comprises a mounting rack, at least one group of reaction barrels symmetrically mounted on the mounting rack, a connecting pipe used for connecting the reaction barrels, a cleaning mechanism arranged on the mounting rack and positioned in the reaction barrels in part of the area, and an alkaline adding mechanism symmetrically mounted on the mounting rack;
the cleaning mechanism is used for cleaning sediments on the inner wall of the reaction barrel;
the alkaline substance adding mechanism is used for adding alkaline solution with a set dose into the reaction barrel through a dosing port arranged on the reaction barrel;
the solute of the alkaline solution is sodium hydroxide.
In a further embodiment, the cleaning mechanism comprises a rotating motor detachably mounted on the mounting frame, a rotating shaft arranged at the output end of the rotating motor, a connecting piece sleeved on the rotating shaft, at least three first connecting rods uniformly arranged on the circumferential direction of the connecting piece, a second connecting rod connected with the other end of the first connecting rod, and a connecting ring used for connecting the other end of the second connecting rod;
the plane where the first connecting rod is located is parallel to the bottom of the reaction barrel, and the length direction of the second connecting rod is parallel to the axial direction of the rotating shaft; through the clean structure that sets up, and then can carry out cleaning to the scale deposit in the retort, and then guarantee the inside clean and tidy of retort.
In a further embodiment; the first connecting rod and the second connecting rod are respectively provided with a linear motion mechanism and a cleaning part connected with the linear motion mechanism;
the cleaning part comprises a hinged seat connected with the linear motion mechanism, a cleaning plate arranged on the hinged seat and having a preset angle with the hinged seat, and a bolt used for connecting the cleaning plate and the hinged seat;
at least in a working state, the cleaning plate on the first connecting rod is contacted with the bottom of the reaction barrel, the cleaning plate on the second connecting rod is abutted against the side wall of the reaction barrel, and the cleaning work of the inner wall of the reaction barrel is finished under the driving of the rotating motor;
the linear motion mechanism and the injection device are both in the prior art; can adjust and clear away the region, and then can clean the different positions in the reaction barrel.
In a further embodiment, the alkali adding mechanism comprises a driving motor connected with the mounting rack, a rotating disk arranged at the output end of the driving motor, at least four heating assemblies arranged on the rotating disk, a stirring assembly connected with the heating assemblies, and a sealing assembly connected with the rotating disk; the pH value in the sewage is adjusted to ensure the smooth running of the nitration reaction.
In a further embodiment, the heating assembly comprises a main pipe, a power supply unit arranged on the main pipe, a heating pipe connected with the power supply unit, a sleeve arranged in the main pipe, and a sealing ring used for connecting the inner wall of the main pipe and the outer wall of the sleeve;
a gap with a set distance is formed between the sleeve and the main pipe;
a sealed filling area is formed among the main pipe, the sleeve and the sealing ring, bath lotion is filled in the filling area, and the heating pipe is wrapped by the bath lotion;
wherein the heating pipe is spiral and is sleeved on the sleeve; the diameter of the sleeve is smaller than that of the drug feeding port;
the bath lotion has a heat conduction function, so that the temperature of the bath lotion is increased when the heating pipe is electrified, the sleeve can be heated, and the temperature in the sleeve is increased; the temperature detector is the prior art; solution in the sleeve can be uniformly heated by heating bath lotion, and the heating pipe can be prevented from being in direct contact with sodium hydroxide solution, so that the heating pipe is prevented from being damaged, and the alkaline solution is ensured to be smoothly added.
In a further embodiment, the stirring assembly comprises a stirring motor arranged in the sleeve, a rotating shaft connected with the output end of the stirring motor, a stirring blade arranged on the rotating shaft, a partition plate arranged in the sleeve, and a plurality of temperature detectors arranged on the partition plate;
the separation plate divides the sleeve into two placing areas, wherein the placing area close to the bottom of the sleeve is used for placing the stirring motor, the other placing area is used for placing the stirring blade, the rotating shaft penetrates through the separation plate, and a sealing ring is arranged between the rotating shaft and the separation plate;
the stirring blade is used for stirring the alkaline solution in the sleeve;
the temperature detector is used for measuring the temperature of the alkaline solution in the sleeve;
the rotating blade, the stirring blade and the partition plate are all plastic products and do not react with alkaline substances; can stir alkaline solution in the heating process, and then guarantee that the solution in the sleeve pipe can be heated evenly, and then guarantee that the solution in the sleeve pipe can be stabilized at established within range.
In a further embodiment, the sealing assembly comprises two support frames arranged on the rotating disc, an adjusting motor arranged on one support frame, a transmission shaft arranged at the output end of the adjusting motor, a rotating member sleeved on the transmission shaft, a sealing plate connected with the rotating member, a magnetic member arranged on the sealing plate, an electromagnetic device arranged on the other support frame, a group of limiting seats symmetrically arranged on two sides of the electromagnetic device and positioned on the support frames, and an elastic protruding end arranged on the limiting seats;
the sealing plate is also provided with a sealing gasket;
at least in a working state, the sealing gasket is abutted with the sleeve under the driving of the adjusting motor, then the magnetic part is adsorbed by the electromagnetic equipment, and the elastic convex end is abutted with the magnetic part to finish the sealing of the alkaline solution in the sleeve; the sealing performance of the solution in the sleeve is ensured, and the splashing of the solution is avoided.
In a further embodiment, the sealing plate is further provided with a limiting pipe, a limiting block positioned in the limiting pipe, a limiting spring connected with the limiting block and connected with the limiting pipe, and a limiting ball connected with the other end of the limiting spring;
still be equipped with spacing hole on the support frame, and predetermine and be in predetermine slide rail on the support frame, spacing ball can be in predetermineeing slide rail internalization
The limiting spring is in a compressed state; the overflow of the solution in the injection process is avoided, and the smooth operation of the solution adding work is further ensured.
In a further embodiment, the sealing plate is provided with a guide shaft and a guide wheel arranged at one end of the guide shaft;
the guide wheel is axially provided with a limiting groove, the support frame is provided with a limiting sliding groove, and the limiting groove is matched with the limiting sliding rail;
the supporting frame is also provided with a convex part and a concave part;
at least in the sealing process, the guide wheel sequentially passes through the convex part and the concave part on the support frame, and in the sealing state, the guide wheel is positioned at the concave part; the sealing plate can seal the pipe orifice of the sleeve, so that the sealing gasket can cover the pipe orifice of the sleeve, and the solution in the sleeve is prevented from splashing.
A denitrification method based on the denitrification device for the municipal domestic sewage comprises the following steps:
s1: when the domestic wastewater in cities needs to be subjected to denitrification treatment, an operator firstly injects the domestic wastewater into the reaction barrel through the water inlet in the reaction barrel, then adds a medicament into the reaction barrel, and further causes nitrification reaction in the reaction barrel, but in the process, the pH value of the wastewater is gradually reduced, so that the rate of the nitrification reaction is reduced, and therefore the operator needs to add an alkaline substance into the reaction barrel;
s2: when alkaline substances need to be added into the reaction barrel, alkaline solution is injected into the sleeve through the injection device, then the temperature detector in the sleeve can detect the temperature of the alkaline solution in the sleeve, when the temperature of the temperature detector is lower than 12.8 ℃, the power supply unit supplies power to the heating pipe, the heating pipe can generate more heat, the heating pipe can increase the temperature of bath liquid, the bath liquid can heat the alkaline solution in the sleeve, then the stirring motor starts to work, the rotating shaft can be driven to rotate, the moving rotating shaft can drive the stirring blades to rotate, the alkaline solution can be stirred, and the heating work of the alkaline solution in the sleeve is completed along with the increase of the temperature of the sleeve;
s3: after the heating work of the alkaline solution in the sleeve is finished, the adjusting motor starts to work at the moment, the moving adjusting motor can drive the transmission shaft to start to rotate, the moving transmission shaft can drive the rotating part to start to rotate, the moving rotating part can drive the sealing plate to start to move, and the sealing gasket on the sealing plate is abutted against the pipe orifice of the sleeve;
s4: after the sealing work of the sleeve is finished, the driving motor starts to work at the moment, the moving driving motor can drive the rotating disc to start rotating, the sleeve filled with the alkaline solution starts to rotate, then the injection device can inject the alkaline solution into the empty sleeve, the sleeve filled with the alkaline solution can move to the position above the chemical feeding hole in the reaction barrel, then the electromagnetic equipment stops working, then the adjusting motor starts to work, the moving process is the same as the moving process, but the moving direction of the sealing plate is opposite to the moving direction, so that the alkaline solution can be completely injected into the reaction barrel, in the process, the injection device can inject the alkaline solution into the sleeve at the opposite position, and then the sewage after the nitration reaction is finished is discharged from the connecting pipe;
s5: when the reaction barrel is used for a set time period, firstly, sewage in the reaction barrel is emptied, then an operator can install the cleaning mechanism on the mounting frame, then the output end of the cleaning mechanism is located in the reaction barrel, then the rotating motor starts working, further the moving rotating motor can drive the rotating shaft to start moving, further the moving rotating shaft can drive the connecting piece to start moving, further the moving connecting piece can drive the first connecting rod to start moving, then the moving first connecting rod can drive the second connecting rod to start moving, in the rotating process of the first connecting rod and the second connecting rod, the cleaning plate located on the first connecting rod can clean the dirt at the bottom of the reaction barrel, the cleaning plate located on the second connecting rod can clean the dirt on the barrel wall of the reaction barrel, and then the cleaning plates can move in the length direction of the respective connecting rods under the driving of the linear motion mechanism, so that the cleaning work of the reaction barrel can be completed;
s6: after the cleaning work is finished, the steps S1-S4 are repeated at the moment, so that the sewage after the nitration reaction is finished can flow out from the connecting pipe, and the primary denitrification and purification work of the sewage is finished.
Has the beneficial effects that: the invention discloses a denitrification device for municipal domestic sewage, which is used for reducing the precipitation amount of sodium hydroxide crystals from a solution, and is characterized in that a heating component is arranged in the device, after an alkaline solution is positioned in a sleeve, a power supply unit supplies power to a heating pipe, the heating pipe can generate more heat, the temperature of bath liquid can be raised by the heating pipe, the bath liquid can heat the alkaline solution in the sleeve, a stirring motor can start to work, a rotating shaft can be driven to rotate, the rotating shaft can drive a stirring blade to rotate, the alkaline solution can be stirred, the heating work of the alkaline solution in the sleeve is completed along with the rise of the temperature of the sleeve, the temperature of the solution in the sleeve can be monitored in real time through a temperature detector, the temperature of the solution can be timely adjusted, the sleeve is heated through the bath liquid placed in a main pipe, the phenomenon that the temperature of the alkaline solution in the sleeve is too high is avoided, the alkaline solution is prevented from overflowing, the solution heating in the sleeve is prevented from being heated evenly, the heating pipe is prevented from being in contact with the heating pipe smoothly, and the damage of the alkaline solution is avoided, and the denitrification process is guaranteed.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the cleaning mechanism of the present invention.
Fig. 3 is a schematic view of the alkaline substance addition mechanism of the present invention.
Fig. 4 is a plan view of the alkaline substance adding mechanism of the present invention.
Figure 5 is a top view of the heating assembly of the present invention.
Fig. 6 is a schematic view of the seal assembly of the present invention.
Fig. 7 is a front view of the seal assembly of the present invention.
The reference signs are: the device comprises a mounting frame 1, a reaction barrel 2, a connecting pipe 3, a cleaning mechanism 4, a rotating motor 41, a rotating shaft 42, a connecting piece 43, a first connecting rod 44, a second connecting rod 45, a connecting ring 46, a hinged seat 47, a clearing plate 48, a bolt 49, an alkaline adding mechanism 5, a driving motor 51, a rotating disk 52, a heating assembly 53, a main pipe 531, a heating pipe 532, a sleeve 533, a stirring assembly 54, a stirring motor 541, a rotating shaft 542, a stirring blade 543, a sealing assembly 55, a support frame 551, an adjusting motor 552, a rotating part 553, a sealing plate 554, a magnetic part 555, a limiting seat 556, an elastic protruding end 557, an electromagnetic device 558, a guide shaft 559, a guide wheel 5510, a limiting pipe 5511, a limiting block 5512, a limiting spring 5513 and a limiting ball 5514.
Detailed Description
Through research and analysis of the applicant, the reason for this problem (scaling phenomenon in a vessel for transporting an alkaline solution or a sewage reaction vessel) is that some enterprises may put an alkaline solution into the sewage reaction vessel during denitrification, so as to increase the PH value in sewage, and avoid the nitrification reaction from being stopped due to too low PH value, and in the selection process, sodium hydroxide is usually selected as a solute of the alkaline solution, so as to complete the addition work of the alkaline solution, and since sodium hydroxide is a strong base, if the sodium hydroxide is excessively added, the PH is obviously increased, so that a small amount of addition work is required during the putting process, and during the transportation to the addition process, the temperature of 50% of the sodium hydroxide solution is reduced, so that sodium hydroxide is crystallized and separated out from the solution, and the crystallized sodium hydroxide is difficult to be dissolved again, in order to reduce the amount of sodium hydroxide crystals separated out from the solution, a heating assembly is further provided in the device, after the alkaline solution is placed in a sleeve, a power supply unit supplies power to a heating pipe, so that the heating pipe generates heat, so that the heating pipe increases the temperature of the heating pipe, so as to stir the working solution, the rotating shaft of the alkali solution, and then the rotating shaft can be stirred, so as to stir the solution, the rotating shaft, the alkali solution can be stirred, and the alkali solution can be heated by the rotating shaft, so as to stir the alkali solution, the alkali solution can be stirred, the temperature of the rotating shaft, the alkali solution can be heated, and can be heated by the rotating shaft, and can be heated in the alkali solution, and can be stirred, wherein heat the sleeve pipe through placing the bath lotion in being responsible for, avoided the heating pipe to make the temperature of the alkaline solution in the sleeve pipe too high, and avoided alkaline solution to be in the boiling state, and then avoided overflowing of solution, not only can guarantee through the bath lotion heating simultaneously that the solution heating in the sleeve pipe is even, can avoid heating pipe and sodium hydroxide solution direct contact moreover, and then avoided the damage of heating pipe, guarantee going on smoothly of alkaline solution interpolation work.
A denitrification device for municipal domestic sewage comprises: the device comprises a mounting frame 1, a reaction barrel 2, a connecting pipe 3, a cleaning mechanism 4, a rotating motor 41, a rotating shaft 42, a connecting piece 43, a first connecting rod 44, a second connecting rod 45, a connecting ring 46, a hinged seat 47, a clearing plate 48, a bolt 49, an alkaline adding mechanism 5, a driving motor 51, a rotating disk 52, a heating assembly 53, a main pipe 531, a heating pipe 532, a sleeve 533, a stirring assembly 54, a stirring motor 541, a rotating shaft 542, a stirring blade 543, a sealing assembly 55, a support frame 551, an adjusting motor 552, a rotating part 553, a sealing plate 554, a magnetic part 555, a limiting seat 556, an elastic protruding end 557, an electromagnetic device 558, a guide shaft 559, a guide wheel 5510, a limiting pipe 5511, a limiting block 5512, a limiting spring 5513 and a limiting ball 5514.
As shown in fig. 1 to 7, the device comprises a mounting frame 1, at least one group of reaction barrels 2 symmetrically mounted on the mounting frame 1, a connecting pipe 3 for connecting the reaction barrels 2, a cleaning mechanism 4 arranged on the mounting frame 1 and partially located in the reaction barrels 2, and an alkaline adding mechanism 5 symmetrically mounted on the mounting frame 1; the cleaning mechanism 4 is used for cleaning the sediment on the inner wall of the reaction barrel 2; the alkaline substance adding mechanism 5 adds alkaline solution with a set dosage into the reaction barrel 2 through a dosing port arranged on the reaction barrel 2; the solute of the alkaline solution is sodium hydroxide: when the domestic wastewater in cities needs to be subjected to denitrification treatment, an operator firstly injects the domestic wastewater into the reaction barrel 2 through the water inlet in the reaction barrel 2, then adds a medicament into the reaction barrel 2, and further causes nitrification reaction in the reaction barrel 2, but in the process, the pH value of the wastewater is gradually reduced, so that the rate of the nitrification reaction is reduced, and therefore the operator needs to add an alkaline substance into the reaction barrel 2; through the alkaline thing that sets up adding mechanism 5, and then through adding alkaline solution to reaction barrel 2, and then can adjust the pH value in the sewage, avoid the pH value to hang down excessively, and lead to the stopping of nitration, and then guarantee going on smoothly of nitration.
The cleaning mechanism 4 comprises a rotating motor 41 detachably mounted on the mounting frame 1, a rotating shaft 42 arranged at the output end of the rotating motor 41, a connecting piece 43 sleeved on the rotating shaft 42, at least three first connecting rods 44 uniformly arranged on the circumference of the connecting piece 43, a second connecting rod 45 connected with the other end of the first connecting rod 44, and a connecting ring 46 used for connecting the other end of the second connecting rod 45; the plane of the first connecting rod 44 is parallel to the bottom of the reaction barrel 2, and the length direction of the second connecting rod 45 is parallel to the axial direction of the rotating shaft 42; the first connecting rod 44 and the second connecting rod 45 are respectively provided with a linear motion mechanism and a cleaning part connected with the linear motion mechanism; the cleaning part comprises a hinged seat 47 connected with the linear motion mechanism, a cleaning plate 48 which is arranged on the hinged seat 47 and has a preset angle with the hinged seat 47, and a bolt 49 for connecting the cleaning plate 48 and the hinged seat 47; at least in the working state, the cleaning plate 48 on the first connecting rod 44 is in contact with the bottom of the reaction barrel 2, the cleaning plate 48 on the second connecting rod 45 is abutted against the side wall of the reaction barrel 2, and the cleaning work on the inner wall of the reaction barrel 2 is completed under the driving of the rotating motor 41; the linear motion mechanism and the injection device are both in the prior art; when the reaction barrel 2 is used for a set period of time, firstly, sewage in the reaction barrel 2 is drained, then an operator can install the cleaning mechanism 4 on the mounting frame 1, then the output end of the cleaning mechanism 4 is located in the reaction barrel 2, then the rotating motor 41 starts working, further the rotating motor 41 can drive the rotating shaft 42 to start moving, further the rotating shaft 42 can drive the connecting piece 43 to start moving, further the connecting piece 43 can drive the first connecting rod 44 to start moving, then the first connecting rod 44 can drive the second connecting rod 45 to start moving, in the rotating process of the first connecting rod 44 and the second connecting rod 45, the cleaning plate 48 located on the first connecting rod 44 can clean the dirt at the bottom of the reaction barrel 2, and the cleaning plate 48 located on the second connecting rod 45 can clean the dirt on the barrel wall of the reaction barrel 2, and then under the driving of the linear motion mechanism, the cleaning plates 48 can move in the length direction of the respective connecting rods, and further the cleaning work of the reaction barrel 2 can be completed; when the cleaning work is finished, the steps S1 to S4 are repeated, so that the sewage after the nitration reaction is finished can flow out from the connecting pipe 3, and the primary denitrification and purification work of the sewage is finished; through the clean structure that sets up, and then can carry out cleaning to the scale deposit in the retort 2, and then guarantee 2 inside clean and tidy of retort.
In a further embodiment, during the transportation to the addition, the temperature of the 50% sodium hydroxide solution is reduced, which in turn causes sodium hydroxide to crystallize and precipitate out of the solution, and the crystallized sodium hydroxide is difficult to be dissolved again, which in turn causes a phenomenon of scaling in the transportation alkaline solution vessel or the sewage reaction vessel.
In order to solve the above problems, the device is further provided with an alkaline adding mechanism 5, wherein the alkaline adding mechanism 5 comprises a driving motor 51 connected with the mounting frame 1, a rotating disc 52 arranged at the output end of the driving motor 51, at least four heating assemblies 53 arranged on the rotating disc 52, a stirring assembly 54 connected with the heating assemblies 53, and a sealing assembly 55 connected with the rotating disc 52; the heating assembly 53 comprises a main pipe 531, a power supply unit arranged on the main pipe 531, a heating pipe 532 connected with the power supply unit, a sleeve 533 arranged in the main pipe 531, and a sealing ring for connecting the inner wall of the main pipe 531 and the outer wall of the sleeve 533; a gap with a certain distance exists between the sleeve 533 and the main pipe 531; a sealed filling area is formed among the main pipe 531, the sleeve 533 and the sealing ring, bath lotion is filled in the filling area, and the heating pipe 532 is wrapped by the bath lotion; wherein the heating pipe 532 is spiral and is sleeved on the sleeve 533; the diameter of the sleeve 533 is smaller than that of the drug-administering port; the bath liquid has a heat conduction function, so that the temperature of the bath liquid is increased when the heating pipe 532 is electrified, the sleeve 533 can be further heated, and the temperature in the sleeve 533 is increased; the temperature detector is the prior art; : when alkaline substances need to be added into the reaction barrel 2, at this time, alkaline solution is injected into the sleeve 533 through the injection device, then the temperature detector located in the sleeve 533 can detect the temperature of the alkaline solution located in the sleeve 533, when the temperature is lower than 12.8 ℃, the power supply unit supplies power to the heating pipe 532, then the heating pipe 532 generates more heat, and then the heating pipe 532 raises the temperature of the bath solution, so that the bath solution heats the alkaline solution in the sleeve 533, then the stirring motor 541 starts to work, and then the rotating shaft 542 can be driven to rotate, then the moving rotating shaft 542 can drive the stirring blades 543 to rotate, so that the alkaline solution can be stirred, and the heating work of the alkaline bath solution in the sleeve 533 is completed along with the rise of the temperature of the sleeve 533; the temperature of the liquid in the sleeve 533 can be detected by the arranged temperature detector, so that the temperature of the liquid can be in a set range, the boiling or the temperature of the liquid is lower than the precipitation point of the sodium hydroxide solution, and the precipitation of sodium hydroxide crystals is avoided; meanwhile, the sleeve 533 is heated through bath lotion placed in the main pipe 531, the heating pipe 532 is prevented from enabling the temperature of the alkaline solution in the sleeve 533 to be too high, the alkaline solution is prevented from being in a boiling state, the solution is prevented from overflowing, the solution in the sleeve 533 can be uniformly heated through bath lotion heating, the heating pipe 532 can be prevented from being in direct contact with the sodium hydroxide solution, the heating pipe 532 is prevented from being damaged, and the alkaline solution is guaranteed to be smoothly added.
The stirring assembly 54 includes a stirring motor 541 disposed in the casing 533, a rotating shaft 542 connected to an output end of the stirring motor 541, a stirring blade 543 disposed on the rotating shaft 542, a partition plate disposed in the casing 533, and a plurality of temperature detectors disposed on the partition plate; the partition plate divides the sleeve 533 into two placing areas, wherein the placing area near the bottom of the sleeve 533 is used for placing the stirring motor 541, the other placing area is used for placing the stirring blade 543, the rotating shaft 542 penetrates through the partition plate, and a sealing ring is arranged between the rotating shaft 542 and the partition plate; the stirring blade 543 is used for stirring the alkaline solution in the sleeve 533; the temperature detector is used for measuring the temperature of the alkaline solution in the sleeve 533; the rotating shaft 542, the stirring blade 543 and the partition plate are all made of plastic or a layer of protective film is coated on the surfaces of the rotating shaft 542, the stirring blade 543 and the partition plate, so that the parts can not react with alkaline substances; through the stirring subassembly 54 that sets up, and then can stir alkaline solution in the heating process, and then guarantee that the solution in the sleeve pipe 533 can be heated evenly, and then guarantee that the solution in the sleeve pipe 533 can be stabilized at established within range.
In a further embodiment, the container for holding alkaline solution in this device can rotate, add the position from initial injection and move to adding the position, and at this in-process, the solution in the container can produce certain centrifugal force, and then can lead to the solution in sleeve 533 to be thrown away, and because the solution that holds in the container is strong alkaline solution, and then when strong alkaline solution and device or personnel contacted, can lead to device or personnel's damage.
In order to solve the above problems, the present apparatus is provided with a sealing assembly 55, wherein the sealing assembly 55 includes two support frames 551 arranged on the rotating disc 52, an adjusting motor 552 arranged on one of the support frames 551, a transmission shaft arranged at an output end of the adjusting motor 552, a rotating member 553 sleeved on the transmission shaft, a sealing plate 554 connected with the rotating member 553, a magnetic member 555 arranged on the sealing plate 554, an electromagnetic device 558 arranged on the other support frame 551, a set of limit seats 556 symmetrically arranged on two sides of the electromagnetic device 558 and located on the support frame 551, and an elastic protruding end 557 arranged on the limit seat 556; a sealing gasket is further arranged on the sealing plate 554; at least in the working state, under the driving of the adjusting motor 552, the sealing gasket is abutted with the sleeve 533, then the magnetic member 555 is absorbed by the electromagnetic device 558, and the elastic protruding end 557 is abutted with the magnetic member 555, so that the sealing of the alkaline solution in the sleeve 533 is completed; after the heating work of the alkaline solution in the sleeve 533 is completed, the adjusting motor 552 starts to work at this time, and then the moving adjusting motor 552 can drive the transmission shaft to start to rotate, and then the moving transmission shaft can drive the rotating member 553 to start to rotate, and further the moving rotating member 553 can drive the sealing plate 554 to start to move, so that the sealing gasket on the sealing plate 554 is abutted against the pipe orifice of the sleeve 533, at this time, the magnetic member 555 can be positioned between the two limiting seats 556, and the two elastic protruding ends 557 are abutted against the surface of the magnetic member 555, and then the electromagnetic device 558 starts to work, so that the magnetic member 555 positioned between the two limiting seats 556 can be adsorbed, and further the sealing work of the sleeve 533 is completed; after the sealing operation of the sleeve 533 is completed, the driving motor 51 starts to operate, and the moving driving motor 51 can drive the rotating disc 52 to start rotating, so that the sleeve 533 filled with the alkaline solution starts to rotate, then the injection device can inject the alkaline solution into the empty sleeve 533, the sleeve 533 filled with the alkaline solution can move to the position above the dosing port on the reaction barrel 2, then the electromagnetic device 558 stops operating, and then the adjustment motor 552 starts to operate, the movement process is the same as the above, but the movement direction of the sealing plate 554 is opposite to the above, so that the alkaline solution can be completely injected into the reaction barrel 2, during which the injection device can inject the alkaline solution into the sleeve 533 at the opposite position, and then the sewage after the nitration reaction is discharged from the connecting pipe 3; through setting up foretell seal assembly 55, and then accomplish the back of injecting solution work in to sleeve 533, through closing plate 554 and the seal gasket that sets up, and then can play the sealed work to solution in the sleeve 533, and then avoid rotatory in-process, the splashing of alkaline solution, and then avoided personnel's injures and deaths, simultaneously through the cooperation of the electromagnetic means 558 that sets up and magnetic member 555, and through two elasticity protruding end 557 and the magnetic member 555 butt that sets up, and the drive of adjusting motor 552, and then can guarantee seal gasket and sleeve 533 mouth of pipe butt, and then avoid rotatory in-process, solution strikes closing plate 554, and lead to seal gasket to keep away from the sleeve 533 mouth of pipe, and then guaranteed the leakproofness of solution in the sleeve 533, avoid splashing of solution.
The sealing plate 554 is further provided with a limiting pipe 5511, a limiting block 5512 positioned in the limiting pipe 5511, a limiting spring 5513 connected with the limiting block 5512 and arranged in the limiting pipe 5511, and a limiting ball 5514 connected with the other end of the limiting spring 5513; the support frame 551 is also provided with a limiting hole and a preset slide rail preset on the support frame 551, and the limiting ball 5514 can move in the preset slide rail; the limit spring 5513 is in a compressed state; through setting up above-mentioned device, and then can make sealing plate 554 can expand completely, make the solution in the injection apparatus can inject to sleeve 533 completely, avoid the injection in-process, the overflow of solution, and then guarantee going on smoothly of solution adding work.
A guide shaft 559 and a guide wheel 5510 arranged at one end of the guide shaft 559 are arranged on the sealing plate 554; the guide wheel 5510 is axially provided with a limiting groove, the support frame 551 is provided with a limiting sliding groove, and the limiting groove is matched with the limiting sliding rail; the support frame 551 is also provided with a convex part and a concave part; at least in the sealing process, the guide wheel 5510 passes through the convex part and the concave part on the support frame 551 in sequence, and in the sealing state, the guide wheel 5510 is positioned at the concave part; the spacing recess and the spacing slide rail that sleeve pipe 533 set up, and then avoid its motion in-process, closing plate 554 moves in guide shaft 559 axial direction, and then guarantees that closing plate 554 can seal the work to the sleeve pipe 533 mouth of pipe, and then makes seal gasket can cover the sleeve pipe 533 mouth of pipe, and then avoids the solution in the sleeve pipe 533 to splash.
Description of the working principle: when the domestic wastewater in a city needs to be subjected to denitrification treatment, an operator firstly injects the domestic wastewater into the reaction barrel 2 through the water inlet in the reaction barrel 2, then adds a medicament into the reaction barrel 2, and further causes nitrification reaction to occur in the reaction barrel 2, but in the process, the pH value of the wastewater is gradually reduced, so that the rate of the nitrification reaction is reduced, and therefore the operator needs to add an alkaline substance into the reaction barrel 2; when alkaline substances need to be added into the reaction barrel 2, at this time, firstly, alkaline solution is injected into the sleeve 533 through the injection device, then the temperature detector located in the sleeve 533 can detect the temperature of the alkaline solution located in the sleeve 533, when the temperature of the alkaline solution is lower than 12.8 ℃, the power supply unit supplies power to the heating pipe 532, then the heating pipe 532 generates more heat, and then the heating pipe 532 raises the temperature of the bath solution, so that the bath solution heats the alkaline solution in the sleeve 533, then the stirring motor 541 starts to work, and then the rotating shaft 542 can be driven to rotate, and then the moving rotating shaft 542 can drive the stirring blade 543 to rotate, so that the alkaline solution can be stirred, and as the temperature of the sleeve 533 rises, the heating work of the alkaline bath solution in the sleeve 533 is completed; after the heating work of the alkaline solution in the sleeve 533 is completed, the adjusting motor 552 starts to work at this time, and then the moving adjusting motor 552 can drive the transmission shaft to start to rotate, and then the moving transmission shaft can drive the rotating member 553 to start to rotate, and further the moving rotating member 553 can drive the sealing plate 554 to start to move, so that the sealing gasket on the sealing plate 554 is abutted against the pipe orifice of the sleeve 533, at this time, the magnetic member 555 can be positioned between the two limiting seats 556, and the two elastic protruding ends 557 are abutted against the surface of the magnetic member 555, and then the electromagnetic device 558 starts to work, so that the magnetic member 555 positioned between the two limiting seats 556 can be adsorbed, and further the sealing work of the sleeve 533 is completed; after the sealing operation of the sleeve 533 is completed, the driving motor 51 starts to operate, and the moving driving motor 51 can drive the rotating disc 52 to start rotating, so that the sleeve 533 filled with the alkaline solution starts to rotate, then the injection device can inject the alkaline solution into the empty sleeve 533, the sleeve 533 filled with the alkaline solution can move to the position above the dosing port on the reaction barrel 2, then the electromagnetic device 558 stops operating, and then the adjustment motor 552 starts to operate, the movement process is the same as the above, but the movement direction of the sealing plate 554 is opposite to the above, so that the alkaline solution can be completely injected into the reaction barrel 2, during which the injection device can inject the alkaline solution into the sleeve 533 at the opposite position, and then the sewage after the nitration reaction is discharged from the connecting pipe 3; when the reaction barrel 2 is used for a set period of time, firstly, sewage in the reaction barrel 2 is drained, then an operator can install the cleaning mechanism 4 on the mounting frame 1, then the output end of the cleaning mechanism 4 is located in the reaction barrel 2, then the rotating motor 41 starts working, further the rotating motor 41 can drive the rotating shaft 42 to start moving, further the rotating shaft 42 can drive the connecting piece 43 to start moving, further the connecting piece 43 can drive the first connecting rod 44 to start moving, then the first connecting rod 44 can drive the second connecting rod 45 to start moving, in the rotating process of the first connecting rod 44 and the second connecting rod 45, the cleaning plate 48 located on the first connecting rod 44 can clean the dirt at the bottom of the reaction barrel 2, and the cleaning plate 48 located on the second connecting rod 45 can clean the dirt on the barrel wall of the reaction barrel 2, and then under the driving of the linear motion mechanism, the cleaning plates 48 can move in the length direction of the respective connecting rods, and further the cleaning work of the reaction barrel 2 can be completed; after finishing the cleaning work, repeating the steps S1-S4, and further making the sewage after finishing the nitration reaction flow out from the connecting pipe 3, and further finishing the preliminary denitrification purification work of the sewage.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a denitrification facility for municipal domestic sewage, characterized by includes:
the device comprises a mounting rack, at least one group of reaction barrels symmetrically mounted on the mounting rack, a connecting pipe used for connecting the reaction barrels, a cleaning mechanism arranged on the mounting rack and positioned in the reaction barrels in part of the area, and an alkaline adding mechanism symmetrically mounted on the mounting rack;
the cleaning mechanism is used for cleaning precipitates on the inner wall of the reaction barrel;
the alkaline substance adding mechanism adds alkaline solution with a set dosage into the reaction barrel through a dosing port arranged on the reaction barrel.
2. The denitrification device for urban domestic sewage according to claim 1, wherein: the cleaning mechanism comprises a rotating motor detachably mounted on the mounting frame, a rotating shaft arranged at the output end of the rotating motor, a connecting piece sleeved on the rotating shaft, at least three first connecting rods uniformly arranged on the circumferential direction of the connecting piece, a second connecting rod connected with the other end of the first connecting rod, and a connecting ring used for connecting the other end of the second connecting rod;
the plane of the first connecting rod is parallel to the bottom of the reaction barrel, and the length direction of the second connecting rod is parallel to the axial direction of the rotating shaft.
3. The denitrification device for urban domestic sewage according to claim 2, wherein: the first connecting rod and the second connecting rod are respectively provided with a linear motion mechanism and a cleaning part connected with the linear motion mechanism;
the cleaning part comprises a hinged seat connected with the linear motion mechanism, a cleaning plate arranged on the hinged seat and having a preset angle with the hinged seat, and a bolt used for connecting the cleaning plate and the hinged seat;
at least when the reaction barrel is in a working state, the cleaning plate positioned on the first connecting rod is contacted with the bottom of the reaction barrel, the cleaning plate on the second connecting rod is abutted against the side wall of the reaction barrel, and the cleaning work on the inner wall of the reaction barrel is completed under the driving of the rotating motor.
4. The denitrification device for urban domestic sewage according to claim 1, wherein: the alkaline substance adding mechanism comprises a driving motor connected with the mounting frame, a rotating disc arranged at the output end of the driving motor, at least four heating assemblies arranged on the rotating disc, a stirring assembly connected with the heating assemblies, and a sealing assembly connected with the rotating disc.
5. The denitrification device for urban domestic sewage according to claim 4, wherein: the heating assembly comprises a main pipe, a power supply unit arranged on the main pipe, a heating pipe connected with the power supply unit, a sleeve arranged in the main pipe, and a sealing ring used for connecting the inner wall of the main pipe with the outer wall of the sleeve;
a gap with a set distance is formed between the sleeve and the main pipe;
a sealed filling area is formed among the main pipe, the sleeve and the sealing ring, bath lotion is filled in the filling area, and the heating pipe is wrapped by the bath lotion;
wherein the heating pipe is spiral and is sleeved on the sleeve.
6. The denitrification device for the municipal domestic sewage according to claim 5, wherein: the stirring assembly comprises a stirring motor arranged in the sleeve, a rotating shaft connected with the output end of the stirring motor, stirring blades arranged on the rotating shaft, a partition plate arranged in the sleeve and a plurality of temperature detectors arranged on the partition plate;
the separation plate divides the sleeve into two placing areas, wherein the placing area close to the bottom of the sleeve is used for placing the stirring motor, the other placing area is used for placing the stirring blade, the rotating shaft penetrates through the separation plate, and a sealing ring is arranged between the rotating shaft and the separation plate;
the stirring blade is used for stirring the alkaline solution in the sleeve;
the temperature detector is used for measuring the temperature of the alkaline solution in the sleeve.
7. The denitrification device for urban domestic sewage according to claim 4, wherein: the sealing assembly comprises two support frames arranged on the rotating disc, an adjusting motor arranged on one support frame, a transmission shaft arranged at the output end of the adjusting motor, a rotating part sleeved on the transmission shaft, a sealing plate connected with the rotating part, a magnetic part arranged on the sealing plate, electromagnetic equipment arranged on the other support frame, a group of limiting seats symmetrically arranged on two sides of the electromagnetic equipment and positioned on the support frames, and elastic convex ends arranged on the limiting seats;
the sealing plate is also provided with a sealing gasket;
at least when the sealing device is in a working state, the sealing gasket is abutted to the sleeve under the driving of the adjusting motor, then the magnetic part is adsorbed by the electromagnetic equipment, and the elastic convex end is abutted to the magnetic part to finish the sealing of the alkaline solution in the sleeve.
8. The denitrification device for the municipal domestic sewage according to claim 7, wherein: the sealing plate is also provided with a limiting pipe, a limiting block positioned in the limiting pipe, a limiting spring connected with the limiting block and connected with the limiting pipe, and a limiting ball connected with the other end of the limiting spring;
the support frame is also provided with a limiting hole and a preset sliding rail, the preset sliding rail is arranged on the support frame, and the limiting ball can move in the preset sliding rail
The limiting spring is in a compressed state.
9. The denitrification device for urban domestic sewage according to claim 8, wherein: the sealing plate is provided with a guide shaft and a guide wheel arranged at one end of the guide shaft;
the guide wheel is axially provided with a limiting groove, the support frame is provided with a limiting sliding groove, and the limiting groove is matched with the limiting sliding rail;
the supporting frame is also provided with a convex part and a concave part;
at least in the sealing process, the guide wheel sequentially passes through the convex part and the concave part on the supporting frame, and in the sealing state, the guide wheel is positioned at the concave part.
10. The denitrification method of the denitrification facility for the municipal sewage according to any one of claims 1 to 9, comprising the steps of:
s1: when the domestic wastewater in cities needs to be subjected to denitrification treatment, an operator firstly injects the domestic wastewater into the reaction barrel through the water inlet in the reaction barrel, then adds a medicament into the reaction barrel, and further causes nitrification reaction in the reaction barrel, but in the process, the pH value of the wastewater is gradually reduced, so that the rate of the nitrification reaction is reduced, and therefore the operator needs to add an alkaline solution into the reaction barrel;
s2: when alkaline solution needs to be added into the reaction barrel, the alkaline solution is injected into the sleeve through the injection device, then the temperature detector in the sleeve can detect the temperature of the alkaline solution in the sleeve, when the temperature of the temperature detector is lower than 12.8 ℃, the power supply unit supplies power to the heating pipe, the heating pipe can generate more heat, the heating pipe can increase the temperature of bath liquid, the bath liquid can heat the alkaline solution in the sleeve, then the stirring motor starts to work, the rotating shaft can be driven to rotate, the moving rotating shaft can drive the stirring blades to rotate, the alkaline solution can be stirred, and the heating work of the alkaline solution in the sleeve is completed along with the increase of the temperature of the sleeve;
s3: after the heating work of the alkaline solution in the sleeve is finished, the adjusting motor starts to work at the moment, the moving adjusting motor can drive the transmission shaft to start to rotate, the moving transmission shaft can drive the rotating part to start to rotate, the moving rotating part can drive the sealing plate to start to move, the sealing gasket on the sealing plate is abutted to the pipe orifice of the sleeve, the magnetic part can be positioned between the two limiting seats, the two elastic convex ends are abutted to the surface of the magnetic part, then the electromagnetic equipment starts to work, and the magnetic part positioned between the two limiting seats can be adsorbed, so that the sealing work of the sleeve is finished;
s4: after the sealing work of the sleeve is finished, the driving motor starts to work at the moment, the moving driving motor can drive the rotating disc to start rotating, the sleeve filled with the alkaline solution starts to rotate, then the injection device can inject the alkaline solution into the empty sleeve, the sleeve filled with the alkaline solution can move to the position above the chemical feeding hole in the reaction barrel, then the electromagnetic equipment stops working, then the adjusting motor starts to work, the moving process is the same as the moving process, but the moving direction of the sealing plate is opposite to the moving direction, so that the alkaline solution can be completely injected into the reaction barrel, in the process, the injection device can inject the alkaline solution into the sleeve at the opposite position, and then the sewage after the nitration reaction is finished is discharged from the connecting pipe;
s5: when the reaction barrel is used for a preset time period, firstly, sewage in the reaction barrel is emptied, then an operator can install the cleaning mechanism on the mounting frame, then the output end of the cleaning mechanism is positioned in the reaction barrel, then the rotating motor starts working, further, the moving rotating motor can drive the rotating shaft to start moving, further, the moving rotating shaft can drive the connecting piece to start moving, further, the moving connecting piece can drive the first connecting rod to start moving, then, the moving first connecting rod can drive the second connecting rod to start moving, in the rotating process of the first connecting rod and the second connecting rod, the cleaning plate positioned on the first connecting rod can clean the dirt at the bottom of the reaction barrel, the cleaning plate positioned on the second connecting rod can clean the dirt on the barrel wall of the reaction barrel, and then, under the driving of the linear motion mechanism, the cleaning plates can move in the length direction of the respective connecting rods, further, the cleaning work of the reaction barrel can be completed;
s6: after the cleaning work is finished, the steps S1-S4 are repeated at the moment, so that the sewage after the nitration reaction is finished can flow out from the connecting pipe, and the preliminary denitrification and purification work of the sewage is finished.
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| CN202211343808.0A CN115520956B (en) | 2022-10-31 | 2022-10-31 | Denitrification device and denitrification method for urban domestic sewage |
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| CN202211343808.0A CN115520956B (en) | 2022-10-31 | 2022-10-31 | Denitrification device and denitrification method for urban domestic sewage |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100862367B1 (en) * | 2007-07-03 | 2008-10-13 | (주)에코데이 | Plant for wastewater treatment by pfr |
| JP6753013B1 (en) * | 2019-08-09 | 2020-09-09 | 广州克力労保用品有限公司 | Urban sewerage communication equipment |
| CN111718030A (en) * | 2020-06-30 | 2020-09-29 | 施成允 | Sewage nitrogen and phosphorus removal equipment |
| CN214990336U (en) * | 2021-03-29 | 2021-12-03 | 青岛明朗环境工程有限公司 | Dye wastewater pretreatment denitrification treatment equipment |
| CN216837568U (en) * | 2022-03-02 | 2022-06-28 | 山西国环动力环保科技股份有限公司 | Efficient denitrification equipment for sewage treatment |
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2022
- 2022-10-31 CN CN202211343808.0A patent/CN115520956B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100862367B1 (en) * | 2007-07-03 | 2008-10-13 | (주)에코데이 | Plant for wastewater treatment by pfr |
| JP6753013B1 (en) * | 2019-08-09 | 2020-09-09 | 广州克力労保用品有限公司 | Urban sewerage communication equipment |
| CN111718030A (en) * | 2020-06-30 | 2020-09-29 | 施成允 | Sewage nitrogen and phosphorus removal equipment |
| CN214990336U (en) * | 2021-03-29 | 2021-12-03 | 青岛明朗环境工程有限公司 | Dye wastewater pretreatment denitrification treatment equipment |
| CN216837568U (en) * | 2022-03-02 | 2022-06-28 | 山西国环动力环保科技股份有限公司 | Efficient denitrification equipment for sewage treatment |
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