CN110921907B - Desulfurization and denitrification equipment and method - Google Patents
Desulfurization and denitrification equipment and method Download PDFInfo
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- CN110921907B CN110921907B CN201911282079.0A CN201911282079A CN110921907B CN 110921907 B CN110921907 B CN 110921907B CN 201911282079 A CN201911282079 A CN 201911282079A CN 110921907 B CN110921907 B CN 110921907B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
The invention discloses a desulfurization and denitrification device, which comprises a placing frame, wherein a transfer case is arranged at the top end of the placing frame, a control switch is embedded and connected at one end of the transfer case, a conveying pipe is connected at the top end of the transfer case, and a rotational flow washer is arranged at the position, corresponding to one side of the transfer case, of the top end of the placing frame in a penetrating manner. The meshes of the filter screen can be used alternately, and the loss of the filter screen is reduced.
Description
Technical Field
The invention relates to the technical field of desulfurization and denitrification, in particular to desulfurization and denitrification equipment and a desulfurization and denitrification method.
Background
The waste water is a general term of water and runoff rainwater discharged in the process of activities of residents, and comprises domestic sewage, industrial waste water and other useless water such as runoff inflow drainage pipe canal and the like, generally refers to water which can not be recycled after being treated by a certain technology or can not reach a certain standard after being subjected to primary pollution to prepare pure water, sulfur dioxide and nitrogen oxide in the air easily enter surface waste water due to rainfall and the like in developed areas of China, and can be converged along with water flow to enter areas such as lakes and reservoirs and the like, so that the safety of water sources is influenced, and serious environmental pollution is caused;
however, the existing desulfurization and denitrification equipment is generally carried out on the waste gas discharged from a factory, so that sulfur dioxide and nitrogen oxide contained in the waste gas can be effectively reduced, but a part of sulfur dioxide and nitrogen oxide still enter the air and enter the surface waste water along with rainfall, and therefore, the desulfurization and denitrification equipment and method need to be designed for desulfurization and denitrification treatment on the waste water.
Disclosure of Invention
The technical scheme provided by the invention can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a desulfurization and denitrification device comprises a placing frame, wherein a transfer case is installed at the top end of the placing frame, a control switch is embedded and connected at one end of the transfer case, a conveying pipe is connected at the top end of the transfer case, a rotational flow washer is installed at a position, corresponding to one side of the transfer case, at the top end of the placing frame in a penetrating mode, a water outlet pipe is connected at the top end of the rotational flow washer, a wastewater inlet pipe is connected at the other end of the transfer case, the bottom end of the rotational flow washer is connected with a sewage discharge outlet, a heating pipe is installed on the inner wall of one end of the transfer case, and a wastewater extraction pump is installed on the inner wall of the bottom end of the transfer case;
one end of the transfer box is connected with a heating pipe cleaning mechanism in an embedded mode, and the heating pipe cleaning mechanism comprises a transmission bin, a crank, a rotating shaft, a transmission gear, a driven gear, a transmission toothed chain, a rotating circular plate, an installation connecting plate and cleaning bristles;
one end of the transfer box is connected with a transmission bin, one end of the transmission bin is embedded into and rotatably connected with a crank, the inner wall of one end of the transmission bin is symmetrically connected with a rotating shaft, a transmission gear is fixedly installed on the outer side of the rotating shaft corresponding to the position of the crank, a driven gear is fixedly installed on the outer side of the other rotating shaft, the outer sides of the transmission gear and the driven gear are respectively connected with a transmission toothed chain in a meshing manner, the other ends of the two rotating shafts penetrate through the transfer box and are connected with a rotating circular plate, one end of the rotating circular plate is uniformly connected with an installation connecting plate, and the outer side of the installation connecting plate is uniformly connected with cleaning bristles;
the input end of the control switch is electrically connected with the output end of the commercial power, and the output end of the control switch is electrically connected with the heating pipe and the input end of the waste water extraction pump.
Preferably, the bottom ends of the cleaning bristles are in contact with a heating pipe, and the outer sides of the cleaning bristles are coated with heat-resistant rubber layers.
Preferably, the inner wall of the cyclone washer is connected with a filtering and adjusting mechanism, and the filtering and adjusting mechanism comprises a connecting inner plate, a filter screen, a sliding groove, a sliding mounting plate, a connecting baffle, a driven tooth groove, a rotating rod, an adjusting handle and an adjusting gear;
the connection inner panel is installed to the inner wall of whirl scrubber, the inner wall of connecting the inner panel is evenly embedded and is connected with the filter screen, the top of connecting the inner panel corresponds filter screen outside position department and has seted up the sliding tray, the top sliding connection of sliding tray has sliding mounting panel, connecting baffle is evenly installed on sliding mounting panel's top, driven tooth's socket has evenly been seted up on sliding mounting panel's top, the dwang is installed in the outside embedding of whirl scrubber, the one end of dwang corresponds whirl scrubber outside position department fixed mounting and has the regulation handle, the other end of dwang corresponds whirl scrubber inboard position department fixed mounting and has adjusting gear.
Preferably, the adjusting gear is in meshed connection with the driven tooth groove, and the interval between every two adjacent filter screens is equal to the interval between every two adjacent connecting baffles.
Preferably, the bottom end of the transit box is provided with a preliminary separation mechanism, and the preliminary separation mechanism comprises a preliminary separation bin, a partition plate, a separation net, a separation extraction pump, an extraction pipe and a cleaning plate;
a primary separation bin is mounted at the bottom end of the transfer box, a partition plate is connected to the inner wall of the primary separation bin, a separation net is embedded into the top end of the partition plate, a separation extraction pump is connected to the position, corresponding to the lower position of the partition plate, of the inner wall of the primary separation bin, an extraction pipe is mounted at the top end of the separation extraction pump, and a cleaning plate is embedded into the bottom end of the primary separation bin and connected with the bottom end of the primary separation bin;
the output end of the control switch is electrically connected with the input end of the separation and extraction pump.
Preferably, the aperture of the separation net is 5mm, and a sealing ring is installed at the joint of the cleaning plate and the primary separation bin.
Preferably, the top end of the transfer box is connected with a metering and adding mechanism, and the metering and adding mechanism comprises a sodium sulfide adding pipe, an ammonium chloride adding pipe, a fixed connecting plate, an ammonia water adding pipe, a transparent observation plate, a scale mark and an electromagnetic valve;
the top end of the transfer box is connected with a sodium sulfide adding pipe, the position, corresponding to one side of the sodium sulfide adding pipe, of the top end of the transfer box is connected with an ammonium chloride adding pipe, a fixed connecting plate is arranged between the sodium sulfide adding pipe and the ammonium chloride adding pipe, the position, corresponding to the other side of the sodium sulfide adding pipe, of the top end of the transfer box is connected with an ammonia water adding pipe, one ends of the sodium sulfide adding pipe, the ammonium chloride adding pipe and the ammonia water adding pipe are embedded and provided with transparent observing plates, one end of each transparent observing plate is provided with a scale mark, and the bottom ends of the sodium sulfide adding pipe, the ammonium chloride adding pipe and the ammonia water adding pipe are connected with electromagnetic valves;
preferably, the output end of the control switch is electrically connected with the input end of the separating electromagnetic valve.
A using process of desulfurization and denitrification equipment specifically comprises the following steps:
s1, heating the wastewater: transferring the wastewater to be treated into a transfer box for heating;
s2, primary separation: separating larger solid impurities contained in the wastewater by using a separation extraction pump and a separation net;
s3, adding reactants: adding sodium sulfide, ammonium chloride and ammonia water into the heated wastewater;
s4, cyclone separation: then, the wastewater is transmitted into a cyclone scrubber, and the solid precipitate and the wastewater are subjected to cyclone separation;
s5, discharge detection: and respectively discharging the separated solid precipitate and the wastewater, and detecting the contents of sulfur dioxide and nitrogen oxide in the discharged wastewater.
According to the technical characteristics, in the step S1, the wastewater to be treated is conveyed into a transfer box to be heated, and the added wastewater is uniformly heated to 60-80 ℃.
According to the technical characteristics, in the step S3, sodium sulfide, ammonium chloride and ammonia water are added into the heated wastewater, wherein the sodium sulfide, the ammonium chloride and the ammonia water are added in an amount of 2-4 parts by weight, 4-6 parts by weight and 5-7 parts by weight respectively for 100 parts by weight of the wastewater.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. through the crank, pivot, drive gear chain and the washing brush hair that set up, can wave the crank, drive and rotate the plectane and the even board rotation of installation, through the washing brush hair in the even board outside of installation, scrub heating pipe surface adnexed spot, can avoid heating pipe surface to adhere to too much spot, influence heating effect.
2. Through the regulation of setting up, adjusting gear, sliding mounting board and driven tooth's socket, can shake the regulation handle, drive sliding mounting board and rotate to drive the linking bridge and remove, block the mesh of filter screen, thereby the mesh of adjustable filter screen uses, is convenient for adjust the filter effect of filter screen, and the alternate use mesh of filter screen of can being convenient for reduces the loss of filter screen.
3. Through the separation draw-off pump, extraction pipe, preliminary separation storehouse and the separation net that set up, accessible separation draw-off pump operation separates the great solid-state impurity that contains in with waste water suction preliminary separation storehouse to the accessible takes off the clearance board, clears up the great solid-state impurity of separation, and reducible in waste water originally contained great solid-state impurity is great, and the waste water SOx/NOx control technology that leads to appears the condition that efficiency is lower and the effect is relatively poor.
4. Add the pipe through the sodium sulfide that sets up, the ammonium chloride adds the pipe, the aqueous ammonia adds pipe, solenoid valve and scale mark, and the scale mark of accessible transparent observation board one end is measured the sodium sulfide that adds, ammonium chloride and aqueous ammonia to through the operation of control solenoid valve, carry the sodium sulfide that adds, ammonium chloride and aqueous ammonia to the waste water of transfer incasement in, be convenient for add to the measurement of sodium sulfide, ammonium chloride and aqueous ammonia, operate simple and easy facility more.
5. When the cyclone scrubber is used for desulfurization and denitrification of wastewater, the wastewater to be treated is firstly transmitted into a transfer box to be heated, the added wastewater is uniformly heated to 70 ℃, then a separation extraction pump and a separation net are used for separating large solid impurities contained in the wastewater, 3 parts by weight of sodium sulfide, 5 parts by weight of ammonium chloride and 6 parts by weight of ammonia water are added into every 100 parts by weight of the wastewater, then the wastewater is transmitted into the cyclone scrubber, the solid precipitate and the wastewater are subjected to cyclone separation, the separated solid precipitate and the wastewater are respectively discharged, and the contents of sulfur dioxide and nitrogen oxide in the discharged wastewater are detected.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation structure of a wastewater inlet pipe and a sewage drain outlet according to the present invention;
FIG. 3 is a schematic view of the installation structure of the heating pipe and the waste water pump of the present invention;
FIG. 4 is a schematic structural view of a heat pipe cleaning mechanism according to the present invention;
FIG. 5 is a schematic view of the driven gear and drive sprocket mounting structure of the present invention;
FIG. 6 is a schematic view of the mounting structure of the present invention for mounting the tie plate and cleaning bristles;
FIG. 7 is a schematic view of the filter adjustment mechanism of the present invention;
FIG. 8 is a schematic structural view of the region A in FIG. 7 according to the present invention;
FIG. 9 is a schematic view of the preliminary separating mechanism of the present invention;
FIG. 10 is a schematic structural view of the metering mechanism of the present invention;
FIG. 11 is a schematic view showing the installation structure of the solenoid valve and the ammonia water addition pipe according to the present invention;
FIG. 12 is a schematic structural view of the present invention;
reference numbers in the figures: 1. placing a rack; 2. a transfer box; 3. a control switch; 4. a delivery pipe; 5. a cyclone scrubber; 6. a water outlet pipe; 7. a wastewater inlet pipe; 8. a sewage draining outlet; 9. heating a tube; 10. a wastewater pump;
11. a heating pipe cleaning mechanism; 1101. a transmission bin; 1102. a crank; 1103. a rotating shaft; 1104. a transmission gear; 1105. a driven gear; 1106. a transmission gear chain; 1107. rotating the circular plate; 1108. mounting a connecting plate; 1109. cleaning the bristles;
12. a filtration adjustment mechanism; 1201. connecting the inner plates; 1202. a filter screen; 1203. a sliding groove; 1204. a slide mounting plate; 1205. connecting a baffle plate; 1206. a driven tooth groove; 1207. rotating the rod; 1208. an adjusting handle; 1209. an adjusting gear;
13. a preliminary separation mechanism; 1301. a preliminary separation bin; 1302. a partition plate; 1303. a separation net; 1304. a separation and extraction pump; 1305. an extraction pipe; 1306. cleaning the plate;
14. a metering mechanism; 1401. a sodium sulfide addition tube; 1402. an ammonium chloride addition pipe; 1403. fixing the connecting plate; 1404. an ammonia water addition pipe; 1405. a transparent viewing plate; 1406. scale marking; 1407. an electromagnetic valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1: as shown in fig. 1-11, the invention provides a technical scheme, a desulfurization and denitrification device, which comprises a placing rack 1, wherein a transfer case 2 is installed at the top end of the placing rack 1, one end of the transfer case 2 is connected with a control switch 3 in an embedded manner, the top end of the transfer case 2 is connected with a conveying pipe 4, a cyclone washer 5 is installed at the position, corresponding to one side of the transfer case 2, of the top end of the placing rack 1 in a penetrating manner, the top end of the cyclone washer 5 is connected with a water outlet pipe 6, the other end of the transfer case 2 is connected with a wastewater inlet pipe 7, the bottom end of the cyclone washer 5 is connected with a sewage outlet 8, a heating pipe 9 is installed on the inner wall of one end of the transfer case 2, and a wastewater extraction pump 10 is installed on the inner wall of the bottom end of the transfer case 2;
one end of the transit box 2 is connected with a heating pipe cleaning mechanism 11 in an embedded manner, and the heating pipe cleaning mechanism 11 comprises a transmission bin 1101, a crank 1102, a rotating shaft 1103, a transmission gear 1104, a driven gear 1105, a transmission toothed chain 1106, a rotating circular plate 1107, an installation connecting plate 1108 and cleaning bristles 1109;
one end of the transfer box 2 is connected with a transfer bin 1101, one end of the transfer bin 1101 is embedded and rotatably connected with a crank 1102, the inner wall of one end of the transfer bin 1101 is symmetrically connected with a rotating shaft 1103, a transmission gear 1104 is fixedly installed on the outer side of the rotating shaft 1103 at the position corresponding to the crank 1102, a driven gear 1105 is fixedly installed on the outer side of the other rotating shaft 1103, the outer sides of the transmission gear 1104 and the driven gear 1105 are respectively connected with a transmission toothed chain 1106 in a meshing manner, the other ends of the two rotating shafts 1103 penetrate through the transfer box 2 to be connected with a rotating circular plate 1107, one end of the rotating circular plate 1107 is uniformly connected with an installation connecting plate 1108, and the outer side of the installation connecting plate 1108 is uniformly connected with cleaning bristles 1109;
the input end of the control switch 3 is electrically connected with the output end of a mains supply, the output end of the control switch 3 is electrically connected with the input ends of the heating pipe 9 and the waste water extraction pump 10, the bottom end of the cleaning brush bristles 1109 is in contact with the heating pipe 9, the outer side of the cleaning brush bristles 1109 is coated with a heat-resistant rubber layer, and the heat resistance of the cleaning brush bristles 1109 is improved.
The inner wall of the cyclone washer 5 is connected with a filtering adjusting mechanism 12, and the filtering adjusting mechanism 12 comprises a connecting inner plate 1201, a filter screen 1202, a sliding groove 1203, a sliding mounting plate 1204, a connecting baffle 1205, a driven tooth groove 1206, a rotating rod 1207, an adjusting handle 1208 and an adjusting gear 1209;
connection inner panel 1201 is installed to whirl scrubber 5's inner wall, the even embedding of inner wall of connection inner panel 1201 is connected with filter screen 1202, sliding tray 1203 has been seted up to the top of connection inner panel 1201 corresponding filter screen 1202 outside position department, the top sliding connection of sliding tray 1203 has sliding mounting panel 1204, connection baffle 1205 is evenly installed on sliding mounting panel 1204's top, driven tooth's socket 1206 has evenly been seted up on sliding mounting panel 1204's top, dwang 1207 is installed in the outside embedding of whirl scrubber 5, the one end of dwang 1207 corresponds whirl scrubber 5 outside position department fixed mounting and has the regulation 1208, the other end of dwang 1207 corresponds whirl scrubber 5 inboard position department fixed mounting and has adjusting gear 1209, adjusting gear 1209 is connected with driven tooth's socket 1206 meshing, the interval of two adjacent filter screens 1202 equals the interval of two adjacent connection baffle 1205, be convenient for block filter screen 1202 through connection baffle 1205.
The bottom end of the transit box 2 is provided with a primary separation mechanism 13, and the primary separation mechanism 13 comprises a primary separation bin 1301, a partition 1302, a separation net 1303, a separation extraction pump 1304, an extraction pipe 1305 and a cleaning plate 1306;
a primary separation bin 1301 is installed at the bottom end of the transit box 2, a partition 1302 is connected to the inner wall of the primary separation bin 1301, a separation net 1303 is installed at the top end of the partition 1302 in an embedded mode, a separation extraction pump 1304 is connected to the position, corresponding to the lower position of the partition 1302, of the inner wall of the primary separation bin 1301, an extraction pipe 1305 is installed at the top end of the separation extraction pump 1304, and a cleaning plate 1306 is connected to the bottom end of the primary separation bin 1301 in an embedded mode;
the output end of the control switch 3 is electrically connected with the input end of the separation and extraction pump 1304, the aperture of the separation net 1303 is 5mm, and the sealing ring is installed at the joint of the cleaning plate 1306 and the preliminary separation bin 1301, so that large solid matters in the wastewater can be conveniently separated through the separation net 1303.
The top end of the transit box 2 is connected with a metering and adding mechanism 14, and the metering and adding mechanism 14 comprises a sodium sulfide adding pipe 1401, an ammonium chloride adding pipe 1402, a fixed connecting plate 1403, an ammonia water adding pipe 1404, a transparent observation plate 1405, a scale 1406 and an electromagnetic valve 1407;
the top end of the transit box 2 is connected with a sodium sulfide adding pipe 1401, the top end of the transit box 2 corresponding to one side of the sodium sulfide adding pipe 1401 is connected with an ammonium chloride adding pipe 1402, a fixed connecting plate 1403 is arranged between the sodium sulfide adding pipe 1401 and the ammonium chloride adding pipe 1402, the top end of the transit box 2 corresponding to the other side of the sodium sulfide adding pipe 1401 is connected with an ammonia water adding pipe 1404, one ends of the sodium sulfide adding pipe 1401, the ammonium chloride adding pipe 1402 and the ammonia water adding pipe 1404 are embedded and provided with a transparent observation plate 1405, one end of the transparent observation plate 1405 is provided with a scale 1406, and the bottom ends of the sodium sulfide adding pipe 1401, the ammonium chloride adding pipe 1402 and the ammonia water adding pipe 1404 are connected with an electromagnetic valve 1407;
the output terminal of the control switch 3 is electrically connected to the input terminal of the separating solenoid valve 1407.
Example 2: as shown in fig. 12, the invention provides a technical solution, and a using process of a desulfurization and denitrification apparatus, specifically comprising the following steps:
s1, heating the wastewater: transferring the wastewater to be treated into a transfer box for heating;
s2, primary separation: separating larger solid impurities contained in the wastewater by using a separation extraction pump and a separation net;
s3, adding reactants: adding sodium sulfide, ammonium chloride and ammonia water into the heated wastewater;
s4, cyclone separation: then, the wastewater is transmitted into a cyclone scrubber, and the solid precipitate and the wastewater are subjected to cyclone separation;
s5, discharge detection: and respectively discharging the separated solid precipitate and the wastewater, and detecting the contents of sulfur dioxide and nitrogen oxide in the discharged wastewater.
According to the technical characteristics, in step S1, the wastewater to be treated is conveyed into a transfer box to be heated, and the added wastewater is uniformly heated to 70 ℃.
According to the above technical feature, in step S3, sodium sulfide, ammonium chloride and ammonia water are added to the heated wastewater, and 3 parts by weight of sodium sulfide, 5 parts by weight of ammonium chloride and 6 parts by weight of ammonia water are added to 100 parts by weight of the wastewater.
Example 3: as shown in fig. 12, the invention provides a technical solution, and a using process of a desulfurization and denitrification apparatus, specifically comprising the following steps:
s1, heating the wastewater: transferring the wastewater to be treated into a transfer box for heating;
s2, primary separation: separating larger solid impurities contained in the wastewater by using a separation extraction pump and a separation net;
s3, adding reactants: adding sodium sulfide, ammonium chloride and ammonia water into the heated wastewater;
s4, cyclone separation: then, the wastewater is transmitted into a cyclone scrubber, and the solid precipitate and the wastewater are subjected to cyclone separation;
s5, discharge detection: and respectively discharging the separated solid precipitate and the wastewater, and detecting the contents of sulfur dioxide and nitrogen oxide in the discharged wastewater.
According to the technical characteristics, in step S1, the wastewater to be treated is conveyed into a transfer box to be heated, and the added wastewater is uniformly heated to 60 ℃.
According to the above technical feature, in step S3, sodium sulfide, ammonium chloride and ammonia water are added to the heated wastewater, and 2 parts by weight of sodium sulfide, 4 parts by weight of ammonium chloride and 5 parts by weight of ammonia water are added to 100 parts by weight of the wastewater.
Example 4: as shown in fig. 12, the invention provides a technical solution, and a using process of a desulfurization and denitrification apparatus, specifically comprising the following steps:
s1, heating the wastewater: transferring the wastewater to be treated into a transfer box for heating;
s2, primary separation: separating larger solid impurities contained in the wastewater by using a separation extraction pump and a separation net;
s3, adding reactants: adding sodium sulfide, ammonium chloride and ammonia water into the heated wastewater;
s4, cyclone separation: then, the wastewater is transmitted into a cyclone scrubber, and the solid precipitate and the wastewater are subjected to cyclone separation;
s5, discharge detection: and respectively discharging the separated solid precipitate and the wastewater, and detecting the contents of sulfur dioxide and nitrogen oxide in the discharged wastewater.
According to the technical characteristics, in step S1, the wastewater to be treated is conveyed into a transfer box to be heated, and the added wastewater is uniformly heated to 80 ℃.
According to the above technical feature, in step S3, sodium sulfide, ammonium chloride and ammonia water are added to the heated wastewater, and 4 parts by weight of sodium sulfide, 6 parts by weight of ammonium chloride and 7 parts by weight of ammonia water are added to 100 parts by weight of wastewater.
The results of the tests carried out on the treated waste water according to examples 2 to 4 are given in the following table:
| inspection item | Example 2 | Example 3 | Example 4 |
| Sulfide content (mg/1ml) | 0.52 | 0.78 | 0.53 |
| Content of Nitrogen oxides (mg/ml) | 0.23 | 0.31 | 0.65 |
The detection results in the table show that when the added wastewater is uniformly heated to 70 ℃, 3 parts by weight of sodium sulfide, 4 parts by weight of ammonium chloride and 5 parts by weight of ammonia water are added to 100 parts by weight of wastewater, the treatment effect of the wastewater is best, and the contents of sulfide and nitrogen oxide in the wastewater subjected to desulfurization and denitrification treatment are minimum.
The working principle and the using process of the invention are as follows: when the desulfurization and denitrification equipment is used, wastewater is conveyed into the transfer box 2 through the conveying pipe 4, the separation and extraction pump 1304 is controlled to operate through the control switch 3, the wastewater added and conveyed into the transfer box 2 is extracted into the primary separation bin 1301 through the extraction pipe 1305, the wastewater extracted into the primary separation bin 1301 can pass through the separation net 1303, large solid impurities contained in the wastewater are separated, and a user can clean the separated large solid impurities by taking down the cleaning plate 1306 after the use is finished;
then, sodium sulfide, ammonium chloride and ammonia water are respectively added into a sodium sulfide adding pipe 1401, an ammonium chloride adding pipe 1402 and an ammonia water adding pipe 1404, the added sodium sulfide, ammonium chloride and ammonia water are measured through a scale mark 1406 at one end of a transparent observation plate 1405, the wastewater in the transfer box 2 is heated to a specified temperature, an electromagnetic valve 1407 is controlled to operate through a control switch 3, the added sodium sulfide, ammonium chloride and ammonia water are conveyed into the wastewater in the transfer box 2, and the sodium sulfide, ammonium chloride and ammonia water are conveniently measured and added;
wastewater added with sodium sulfide, ammonium chloride and ammonia water is transmitted into a cyclone washer 5 through a wastewater extraction pump 10 and a conveying pipe 4 for cyclone washing, a filter screen 1202 connected with the inner side of an inner plate 1201 is connected into the cyclone washer 5, so that solid precipitates and the wastewater can be separated, a user shakes an adjusting handle 1208 to drive a rotating rod 1207 and an adjusting gear 1209 to rotate, the adjusting gear 1209 is meshed with a driven tooth socket 1206 at the top end of a sliding mounting plate 1204 to be connected, the sliding mounting plate 1204 can be driven to rotate, a connecting baffle 1205 is driven to move, meshes of the filter screen 1202 are blocked, and therefore the meshes of the filter screen 1202 can be adjusted for use;
when the heating pipe 9 is used for heating wastewater, the crank 1102 can be shaken to drive the rotating shaft 1103 and the transmission gear 1104 to rotate, the driven gear 1105 is driven to rotate through the transmission gear chain 1106 on the outer side of the transmission gear 1104, so that the rotating circular plate 1107 and the mounting connecting plate 1108 are driven to rotate, dirt attached to the surface of the heating pipe 9 can be scrubbed through the cleaning bristles 1109 on the outer side of the mounting connecting plate 1108, and the heating effect can be prevented from being influenced by excessive dirt attached to the surface of the heating pipe 9;
when the cyclone scrubber is used for desulfurization and denitrification of wastewater, the wastewater to be treated is firstly transmitted into a transfer box to be heated, the added wastewater is uniformly heated to 70 ℃, then a separation extraction pump and a separation net are used for separating large solid impurities contained in the wastewater, 3 parts by weight of sodium sulfide, 5 parts by weight of ammonium chloride and 6 parts by weight of ammonia water are added into every 100 parts by weight of the wastewater, then the wastewater is transmitted into the cyclone scrubber, the solid precipitate and the wastewater are subjected to cyclone separation, the separated solid precipitate and the wastewater are respectively discharged, and the contents of sulfur dioxide and nitrogen oxide in the discharged wastewater are detected.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a SOx/NOx control equipment, includes rack (1), its characterized in that: the top end of the placing frame (1) is provided with a transfer box (2), one end of the transfer box (2) is embedded and connected with a control switch (3), the top end of the transfer box (2) is connected with a conveying pipe (4), a cyclone washer (5) is arranged at the position, corresponding to one side of the transfer box (2), of the top end of the placing frame (1) in a penetrating mode, the inner wall of the cyclone washer (5) is connected with a filtering and adjusting mechanism (12), and the filtering and adjusting mechanism (12) comprises a connecting inner plate (1201), a filtering net (1202), a sliding groove (1203), a sliding mounting plate (1204), a connecting baffle (1205), a driven tooth socket (1206), a rotating rod (1207), an adjusting handle (1208) and an adjusting gear (1209);
the inner wall of the cyclone scrubber (5) is provided with a connecting inner plate (1201), the inner wall of the connecting inner plate (1201) is uniformly embedded and connected with a filter screen (1202), a sliding groove (1203) is arranged at the position of the top end of the inner connecting plate (1201) corresponding to the outer side of the filter screen (1202), the top end of the sliding groove (1203) is connected with a sliding mounting plate (1204) in a sliding way, the top end of the sliding mounting plate (1204) is evenly provided with connecting baffles (1205), the top end of the sliding mounting plate (1204) is evenly provided with driven tooth grooves (1206), a rotating rod (1207) is embedded and installed at the outer side of the cyclone scrubber (5), an adjusting handle (1208) is fixedly arranged at the position of one end of the rotating rod (1207) corresponding to the outer side of the cyclone scrubber (5), an adjusting gear (1209) is fixedly arranged at the position of the other end of the rotating rod (1207) corresponding to the inner side of the cyclone scrubber (5);
the top end of the cyclone washer (5) is connected with a water outlet pipe (6), the other end of the transit box (2) is connected with a wastewater inlet pipe (7), the bottom end of the cyclone washer (5) is connected with a sewage outlet (8), a heating pipe (9) is installed on the inner wall of one end of the transit box (2), and a wastewater extraction pump (10) is installed on the inner wall of the bottom end of the transit box (2);
one end of the transfer box (2) is connected with a heating pipe cleaning mechanism (11) in an embedded mode, and the heating pipe cleaning mechanism (11) comprises a transmission bin (1101), a crank (1102), a rotating shaft (1103), a transmission gear (1104), a driven gear (1105), a transmission toothed chain (1106), a rotating circular plate (1107), an installation connecting plate (1108) and cleaning bristles (1109);
one end of the transfer box (2) is connected with a transmission bin (1101), one end of the transmission bin (1101) is embedded into and rotatably connected with a crank (1102), the inner wall of one end of the transmission bin (1101) is symmetrically connected with a rotating shaft (1103), a transmission gear (1104) is fixedly installed on the outer side of the rotating shaft (1103) corresponding to the position of the crank (1102), a driven gear (1105) is fixedly installed on the outer side of the other rotating shaft (1103), the outer sides of the transmission gear (1104) and the driven gear (1105) are both connected with a transmission toothed chain (1106) in a meshing manner, the other ends of the two rotating shafts (1103) penetrate through the transfer box (2) to be connected with rotating circular plates (1107), one end of each rotating circular plate (1107) is uniformly connected with an installation connecting plate (1108), and the outer sides of the installation connecting plates (1108) are uniformly connected with cleaning bristles (1109);
the input end of the control switch (3) is electrically connected with the output end of the commercial power, and the output end of the control switch (3) is electrically connected with the input ends of the heating pipe (9) and the waste water pumping pump (10).
2. The desulfurization and denitrification apparatus according to claim 1, wherein the bottom end of the cleaning brush (1109) is in contact with the heating pipe (9), and the outer side of the cleaning brush (1109) is coated with a heat-resistant rubber layer.
3. The desulfurization and denitrification apparatus according to claim 1, wherein said adjusting gear (1209) is engaged with the driven spline (1206), and the interval between two adjacent filter screens (1202) is equal to the interval between two adjacent connecting baffles (1205).
4. The desulfurization and denitrification apparatus according to claim 1, wherein a preliminary separation mechanism (13) is installed at the bottom end of the transit box (2), and the preliminary separation mechanism (13) comprises a preliminary separation bin (1301), a partition plate (1302), a separation net (1303), a separation extraction pump (1304), an extraction pipe (1305) and a cleaning plate (1306);
a primary separation bin (1301) is installed at the bottom end of the transit box (2), a partition plate (1302) is connected to the inner wall of the primary separation bin (1301), a separation net (1303) is installed at the top end of the partition plate (1302) in an embedded mode, a separation extraction pump (1304) is connected to the position, corresponding to the lower position of the partition plate (1302), of the inner wall of the primary separation bin (1301), an extraction pipe (1305) is installed at the top end of the separation extraction pump (1304), and a cleaning plate (1306) is connected to the bottom end of the primary separation bin (1301) in an embedded mode;
the output end of the control switch (3) is electrically connected with the input end of the separation extraction pump (1304).
5. The desulfurization and denitrification apparatus according to claim 4, wherein the diameter of the separation net (1303) is 5mm, and a sealing ring is installed at the joint of the cleaning plate (1306) and the preliminary separation bin (1301).
6. The desulfurization and denitrification equipment according to claim 1, wherein a metering and adding mechanism (14) is connected to the top end of the transfer box (2), and the metering and adding mechanism (14) comprises a sodium sulfide adding pipe (1401), an ammonium chloride adding pipe (1402), a fixed connecting plate (1403), an ammonia water adding pipe (1404), a transparent observation plate (1405), a scale (1406) and an electromagnetic valve (1407);
the top end of the transit box (2) is connected with a sodium sulfide adding pipe (1401), one side of the top end of the transit box (2) corresponding to the sodium sulfide adding pipe (1401) is connected with an ammonium chloride adding pipe (1402), a fixed connecting plate (1403) is installed between the sodium sulfide adding pipe (1401) and the ammonium chloride adding pipe (1402), the other side of the top end of the transit box (2) corresponding to the sodium sulfide adding pipe (1401) is connected with an ammonia water adding pipe (1404), one ends of the sodium sulfide adding pipe (1401), the ammonium chloride adding pipe (1402) and the ammonia water adding pipe (1404) are all embedded with a transparent observation plate (1405), one end of the transparent observation plate (1405) is provided with a scale marker (1406), and the bottom ends of the sodium sulfide adding pipe (1401), the ammonium chloride adding pipe (1402) and the ammonia water adding pipe (1404) are all connected with an electromagnetic valve (1407);
the output end of the control switch (3) is electrically connected with the input end of the separating electromagnetic valve (1407).
7. The use process of the desulfurization and denitrification equipment according to any one of claims 1 to 6, which is characterized by comprising the following steps:
s1, heating the wastewater: transferring the wastewater to be treated into a transfer box for heating;
s2, primary separation: separating larger solid impurities contained in the wastewater by using a separation extraction pump and a separation net;
s3, adding reactants: adding sodium sulfide, ammonium chloride and ammonia water into the heated wastewater;
s4, cyclone separation: then, the wastewater is transmitted into a cyclone scrubber, and the solid precipitate and the wastewater are subjected to cyclone separation;
s5, discharge detection: and respectively discharging the separated solid precipitate and the wastewater, and detecting the contents of sulfur dioxide and nitrogen oxide in the discharged wastewater.
8. The use process of the desulfurization and denitrification apparatus according to claim 7, wherein in step S1, the wastewater to be treated is transferred into a transfer box to be heated, and the added wastewater is uniformly heated to 60-80 ℃.
9. The use process of the desulfurization and denitrification apparatus according to claim 8, wherein in step S3, sodium sulfide, ammonium chloride and ammonia water are added to the heated wastewater, and the amount of sodium sulfide, ammonium chloride and ammonia water is 2-4 parts by weight, 4-6 parts by weight and 5-7 parts by weight per 100 parts by weight of wastewater.
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| CN110124479A (en) * | 2019-04-30 | 2019-08-16 | 杭州正大重工机械有限公司 | A kind of turbulent flow type active coke desulphurizing denitration device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101337746A (en) * | 2007-07-04 | 2009-01-07 | 上海清瀚环境工程有限公司 | Processing method of high concentration ammonia nitrogen waste water |
| CN102267734A (en) * | 2010-06-04 | 2011-12-07 | 中国石油大学(华东) | Enclosed circulating air floatation method and apparatus |
| CN207237679U (en) * | 2017-08-30 | 2018-04-17 | 南京瑞宜恒环境科技有限公司 | A kind of ammonia spirit desulfurization denitrification apparatus |
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