CN112299596A - Domestic garbage incinerator slag water circulation grading precipitation treatment device and control method - Google Patents
Domestic garbage incinerator slag water circulation grading precipitation treatment device and control method Download PDFInfo
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- CN112299596A CN112299596A CN202011086999.8A CN202011086999A CN112299596A CN 112299596 A CN112299596 A CN 112299596A CN 202011086999 A CN202011086999 A CN 202011086999A CN 112299596 A CN112299596 A CN 112299596A
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- 239000002893 slag Substances 0.000 title claims abstract description 131
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 12
- 238000001556 precipitation Methods 0.000 title claims description 10
- 238000004062 sedimentation Methods 0.000 claims abstract description 176
- 239000010865 sewage Substances 0.000 claims abstract description 42
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 21
- 239000010881 fly ash Substances 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 13
- 239000003814 drug Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 10
- 239000012716 precipitator Substances 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 9
- 239000002244 precipitate Substances 0.000 claims description 6
- 239000002956 ash Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims 6
- 239000003153 chemical reaction reagent Substances 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000012216 screening Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010791 domestic waste Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 238000005406 washing Methods 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a slag water circulation grading sedimentation treatment device of a household garbage incinerator, wherein one side of a primary sedimentation tank is connected with a secondary sedimentation tank, one side of the secondary sedimentation tank, which is far away from the primary sedimentation tank, is connected with a tertiary sedimentation tank, one side of the tertiary sedimentation tank, which is far away from the secondary sedimentation tank, is connected with a clear water tank, one side of the top end of the primary sedimentation tank, which is far away from the secondary sedimentation tank, is provided with a water inlet pipe penetrating through the primary sedimentation tank, the top of the clear water tank is provided with a water outlet pipe penetrating through the clear water tank, the bottom ends of the primary sedimentation tank, the secondary sedimentation tank and the tertiary sedimentation tank are all connected with a slag box, the bottom ends of the backs of the primary sedimentation tank, the secondary sedimentation tank and the tertiary sedimentation tank are all connected with a conveying box. By arranging the plurality of filter screens, the invention can purify the sewage for cleaning the slag for a plurality of times so as to convert the sewage into the cleaning liquid which can be recycled, does not need to precipitate for a long time and improves the sewage circulation efficiency.
Description
Technical Field
The invention relates to the field of domestic garbage incinerator slag sewage treatment, in particular to a domestic garbage incinerator slag water circulation grading precipitation treatment device and a control method.
Background
Along with the continuous improvement of people's material life, also can produce a large amount of domestic waste in people's life thereupon, in order to realize clearing up domestic waste and reduce whole volume, then can adopt the high temperature mode of burning to handle, so not only can realize above-mentioned treatment purpose, can also eliminate poisonous harmful substance in the domestic waste.
However, after the domestic garbage is incinerated at high temperature, a certain amount of incinerator slag is left, the incinerator slag contains stones, metal particles, slag ash and other substances, wherein the stones and other substances with larger volume can be separated by screening by workers or a screening mechanism, but the metal particles are usually separated by adopting a water body cleaning mode, in addition, a large amount of sewage can be generated by matching with a ferromagnetic screening and non-ferromagnetic screening mode, the inside of the sewage contains not only silt with smaller particle size and the like, but also incinerator slag fly ash and the like dissolved in water, in order to realize the rapid filtration of the sewage and the separation of the silt with smaller particle size and the incinerator slag fly ash dissolved in water, the water body can be reused, thus not only improving the production efficiency, but also saving the production cost and protecting the environment, has very important significance.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a circulating and graded sedimentation treatment device for the slag water of the household garbage incinerator with high efficiency and a control method for using the circulating and graded sedimentation treatment device for the slag water of the household garbage incinerator, so as to overcome the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme:
in order to achieve the purpose, the slag water circulation grading sedimentation treatment device of the household garbage incinerator comprises a primary sedimentation tank, a secondary sedimentation tank, a tertiary sedimentation tank and a clean water tank, wherein one side of the primary sedimentation tank is communicated with the secondary sedimentation tank, one side of the secondary sedimentation tank, which is far away from the primary sedimentation tank, is communicated with the tertiary sedimentation tank, one side of the tertiary sedimentation tank, which is far away from the secondary sedimentation tank, is communicated with the clean water tank, a water inlet pipe for penetrating the primary sedimentation tank is arranged at the top end of the primary sedimentation tank and one side of the clean water tank, which is far away from the secondary sedimentation tank, a water outlet pipe for penetrating the clean water tank is arranged at the top end of the clean water tank, slag boxes are connected at the bottom ends of the primary sedimentation tank, the secondary sedimentation tank and the tertiary sedimentation tank, conveying boxes are connected at the back bottom ends of the primary sedimentation tank, the secondary sedimentation tank and the, one side of the top of the conveying box, which is far away from the first-level sedimentation tank, the second-level sedimentation tank and the third-level sedimentation tank, is provided with a slag outlet.
Preferably, the one-level sedimentation tank the second grade sedimentation tank reaches the tertiary sedimentation tank structure is the same, and three sedimentation tanks are the top and are right angle limit and bottom open-ended right trapezoid structure, and one-level sedimentation tank to second grade sedimentation tank and tertiary sedimentation tank interconnect and mounting height decrease progressively in proper order.
Preferably, the one-level sedimentation tank with be provided with the one-level filter screen between the second grade sedimentation tank, the second grade sedimentation tank with be provided with the second grade filter screen between the tertiary sedimentation tank, the tertiary sedimentation tank with be provided with the tertiary filter screen between the clean water basin, the filtration pore internal diameter of crossing of one-level filter screen, second grade filter screen and tertiary filter screen diminishes gradually.
Preferably, the slag box is of an inverted triangular structure with an open top end, the bottom end of the conveying box is connected with the top end of the slag box and keeps the inner space communicated, and the inner bottom surface of the slag box gradually inclines downwards towards the bottom of the conveying box.
Preferably, the conveying box is in an inclined state, and the conveying box is respectively in an acute angle with an included angle between the first-level sedimentation tank, the second-level sedimentation tank and the third-level sedimentation tank.
Preferably, auger transmission device includes the pivot, the pivot bottom with bottom end swing joint in the slag box, the pivot top is run through conveying box top and with the motor box with the motor is connected, and the pivot circumference outside is around being provided with helical blade, every auger transmission device the entrance point of slag notch is higher than the inside liquid level height that corresponds every grade of sedimentation tank.
Preferably, the surface of the helical blade is provided with a plurality of water permeable holes which penetrate through the helical blade and are uniformly arranged.
Preferably, the side part of the water inlet pipe is connected with a bypass pipe, the middle part of the bypass pipe is connected with a flow sensor, the top of the third-stage sedimentation tank is provided with a precipitant dosing pipe, the top end of the precipitant dosing pipe is communicated with the medicament tank, the middle part of the precipitant dosing pipe is connected with an electric valve which is electrically connected with the flow sensor, the internal circulation opening of the electric valve is increased according to the converted current value of the water flow detected by the flow sensor, the water flow is increased, and the opening of the electric valve is increased; the top of the slag box at the bottom of the third-level sedimentation tank is provided with a filtering grid plate for filtering the slag flying ash and the precipitant combination, and the lower part of the third-level sedimentation tank is provided with a pumping pipeline structure for pumping the slag flying ash and the precipitant combination outwards.
The invention also provides a control method of the slag water circulation grading precipitation treatment device of the household garbage incinerator, which comprises the following steps:
step S1: sewage generated by cleaning incineration slag enters the primary sedimentation tank through the water inlet pipe, silt particles mixed in the sewage are subjected to primary gravity sedimentation in the primary sedimentation tank and fall into a slag box at the lower part of the primary sedimentation tank, and the sewage sequentially passes through the primary filter screen, the secondary filter screen and the tertiary filter screen, so that the silt or particles with different particle sizes are filtered by the filter screens and fall into the slag boxes in the corresponding sedimentation tanks;
step S2; filtered slag and silt fall into the slag box, filtered particles in the slag box are transferred to the bottom of the auger transmission mechanism through the inclined inner bottom surface of the slag box, the auger transmission mechanism is driven to work by opening the motor, and the spiral blade drives the slag to continuously move upwards and discharge outwards through the slag outlet;
step S3: after sewage passes through the water inlet pipe, part of water continues to flow downwards along the water inlet pipe, the other part of water flows into the primary sedimentation tank through a flow sensor inside the bypass pipe, the flow sensor detects different flow values of the water and provides different current values for the electric valve, the electric valve adaptively adjusts the opening of the electric valve according to different transmission current values, a medicament inside the medicament tank enters the tertiary sedimentation tank through a precipitator dosing pipe, the medicament is combined with slag fly ash dissolved in the water and precipitates, a slag fly ash and precipitator combination is precipitated on the top surface of the filter grid plate, and the slag fly ash and precipitator combination is pumped outwards through a pumping pipeline structure.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the technical scheme, the filter screens are arranged, so that the sewage for cleaning the slag can be filtered and purified for many times and quickly, the sewage can be converted into the cleaning liquid which can be recycled, effective filtering can be realized without long-time precipitation, and the sewage circulation efficiency is finally improved.
In addition, according to the technical scheme, the slag box and the auger transmission mechanism are arranged, so that slag separated from sewage can be collected, and the auger transmission mechanism transmits the slag to the outside of the sedimentation tank, so that the subsequent cleaning of the slag in the sewage can be realized, and the continuous water circulation can be ensured. According to the technical scheme, the water permeable holes are formed, so that the auger transmission mechanism cannot transmit sewage to the outside in the process of transmitting slag, water waste is reduced, and the sewage conversion rate is improved.
Meanwhile, according to the technical scheme, the side part of the water inlet pipe is connected with the bypass pipe, the middle part of the bypass pipe is connected with the flow sensor, the top of the third-stage sedimentation tank is provided with the precipitant feeding pipe, the top end of the precipitant feeding pipe is communicated with the medicament tank, the middle part of the precipitant feeding pipe is connected with the electric valve and electrically connected with the flow sensor, the internal circulation opening of the electric valve is increased according to the current value converted by the water flow detected by the flow sensor, the water flow is increased, the opening of the electric valve is increased, different precipitant use amounts can be adaptively selected according to different water inflow amounts, and the precipitant is put into the third-stage sedimentation tank with the relatively low water flow speed, so that the water body can be further filtered and the.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of the internal structure of a slag water circulation and fractional precipitation treatment device of a domestic garbage incinerator in embodiment 1 of the present invention;
FIG. 2 is a sectional view showing a side structure of a primary sedimentation tank according to example 1 of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic view of the internal structure of a slag water circulation, classification and sedimentation treatment device of a household garbage incinerator in embodiment 2 of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
The invention provides a slag water circulation grading precipitation treatment device of a household garbage incinerator and a control method.
Referring to the drawings and the detailed description, the invention is further explained, as shown in fig. 1-3, the slag water circulation graded sedimentation treatment device of the household garbage incinerator according to the embodiment of the invention comprises a primary sedimentation tank 1, wherein a secondary sedimentation tank 2 is connected to one side of the primary sedimentation tank 1, a third sedimentation tank 3 is connected to one side of the secondary sedimentation tank 2 far away from the primary sedimentation tank 1, and a clean water tank 4 is connected to one side of the third sedimentation tank 3 far away from the second sedimentation tank 2. One side that 1 top of one-level sedimentation tank and keep away from second grade sedimentation tank 2 is equipped with the inlet tube 5 that runs through it, 4 tops in clean water basin are provided with the outlet pipe 6 that runs through it, one-level sedimentation tank 1, the bottom of second grade sedimentation tank 2 and tertiary sedimentation tank 3 all is equipped with slag box 7, one-level sedimentation tank 1, the back bottom of second grade sedimentation tank 2 and tertiary sedimentation tank 3 all is connected with conveying box 8, conveying box 8 inside is provided with auger transmission mechanism 9, conveying box 8 top is provided with motor box 10, motor box 10 inside be provided with auger transmission mechanism 9 driven motor 11 that cooperatees, conveying box 8 tops are kept away from one-level sedimentation tank 1, one side of second grade sedimentation tank 2 and tertiary sedimentation tank 3 is provided with slag notch 12. By means of above-mentioned technical scheme, through setting up a plurality of filter screens, can make the sewage that washs the slag obtain quick filtration purification many times, but change cyclic utilization's clean washing liquid relatively into, and need not deposit for a long time, and then improve sewage cycle's utilization efficiency. Through setting up slag box 7 and auger transmission mechanism 9, can collect the slag deposit of separation in the sewage to it is outside to transmit the slag to the sedimentation tank through auger transmission mechanism 9, realizes that the slag clearance in the sewage guarantees that hydrologic cycle can continuously go on.
The primary sedimentation tank 1, the secondary sedimentation tank 2 and the tertiary sedimentation tank 3 in the implementation of the invention are identical in structure, the top ends of the primary sedimentation tank 1, the secondary sedimentation tank 2 and the tertiary sedimentation tank 3 are right-angled trapezoid structures, the bottom ends of the three structures are provided with openings, the primary sedimentation tank 1, the secondary sedimentation tank 2 and the tertiary sedimentation tank 3 are mutually connected and the heights of the three sedimentation tanks are sequentially reduced, so that sewage can flow downwards through the three sedimentation tanks in sequence by gravity.
When circulating for the water between the three sedimentation tank, can filter the granule precipitate in the water, be provided with one-level filter screen 13 between one-level sedimentation tank 1 of this embodiment and the second grade sedimentation tank 2, be provided with second grade filter screen 14 between second grade sedimentation tank 2 and the third grade sedimentation tank 3, be provided with tertiary filter screen 15 between third grade sedimentation tank 3 and the clean water basin 4, and one-level filter screen 13, the filter fineness of second grade filter screen 14 and tertiary filter screen 15 increases in proper order, it diminishes gradually also to cross the downthehole diameter of filtration, make sewage when through each sedimentation tank, can realize the quality of water conversion through the purification of filter screen layer upon layer.
The slag box 7 of this embodiment is open-topped inverted triangle structure, and the bottom of transfer box 8 is connected and keeps the inner space intercommunication with the top of slag box 7 to make slag box 7, transfer box 8 and each sedimentation tank realize the inner space intercommunication, realize that the slag is collected and is transmitted.
Preferably, the conveying box 8 of this embodiment is the tilt state, and with the one-level sedimentation tank 1, second grade sedimentation tank 2 and tertiary sedimentation tank 3 between contained angle be the acute angle to accessible auger transport mechanism 9 can transport the slag to slag notch 12, and the slag notch is the structure that leans out, and makes the slag can drop under self gravity and accomplish outside slag notch 12 and clear away.
Preferably, the auger transmission mechanism 9 of this embodiment includes a rotating shaft 901, the bottom end of the rotating shaft 901 is movably connected with the bottom end of the slag box 7, the top end of the rotating shaft 901 penetrates through the transmission box 8 and is connected with the motor box 10 and the motor 11, and the outer side of the circumference of the rotating shaft 901 is provided with the helical blade 902 in a surrounding manner, so that the helical blade 902 can drive the slag to realize upward transportation. In addition, the entrance end of the slag hole 12 of each auger transmission mechanism 9 is higher than the internal liquid level of each level of sedimentation tank, so that the internal water body of each level of sedimentation tank can be prevented from overflowing outwards through the slag hole 12. More preferably, a plurality of water permeable holes 9021 are formed in the surface of the helical blade 902 of the present embodiment, and penetrate through the helical blade 902 and are uniformly arranged, so that sewage cannot be conveyed to the slag outlet 12 along with the helical blade 902, and waste of water is reduced.
For the convenience of understanding the above technical solutions of the present invention, the control method of the present invention in the actual process will be described in detail below.
In the time of practical application, wash incineration slag and the sewage that produces through inlet tube 5 get into one-level sedimentation tank 1 in, the silt of particulate matter carries out preliminary gravity in one-level sedimentation tank 1 and deposits and fall down, and meanwhile sewage flows to second grade sedimentation tank 2 through one-level filter screen 13 under the action of gravity, also carries out corresponding gravity at second grade sedimentation tank 2 and deposits, flows to tertiary sedimentation tank 3 through second grade filter screen 14 under the action of gravity equally, flows to clean water basin 4 through tertiary filter screen 15 at last. Through the gravity sedimentation of the three sedimentation tanks and the filtering and purifying effects of the three filter screens, the silt and the water body are separated and gradually converted into clear water which can be used as cleaning liquid, and the cleaning liquid is recycled.
Meanwhile, slag precipitates are filtered and precipitated in the slag box 7, the triangular structure at the bottom end of the slag box 7 enables the slag to continuously approach the auger transmission mechanism 9, the auger transmission mechanism 9 is driven to work by opening the motor 11, and the spiral blade 902 drives the slag to continuously move upwards to the slag outlet 12 to complete outward discharge and removal of the slag precipitates.
According to the technical scheme, the sewage for cleaning the slag is purified for multiple times by arranging the plurality of filter screens, so that the sewage is converted into the cleaning liquid which can be recycled, long-time precipitation is not needed, and the sewage circulation efficiency is improved. Through setting up slag box 7 and auger transmission mechanism 9, can collect the slag deposit of separation in the sewage, it is outside to transmit the slag to the sedimentation tank through auger transmission mechanism 9, realizes that the slag clearance in the sewage guarantees that hydrologic cycle lasts and goes on. And through setting up the hole 9021 that permeates water, make auger transmission mechanism 9 can not convey sewage to the outside in the slag conveying process, and then reduce water waste, improve the sewage conversion rate.
Example 2
Referring to fig. 4, the following technical features are present between this embodiment and embodiment 1: the side part of the water inlet pipe 5 is connected with a bypass pipe 16, the middle part of the bypass pipe 16 is connected with a flow sensor 161, the top of the third-stage sedimentation tank 3 is provided with a precipitant dosing pipe 17, the top end of the precipitant dosing pipe 17 is communicated with a medicament tank 171, the middle part of the precipitant dosing pipe 17 is connected with an electric valve 172 and electrically connected with the flow sensor 161, the internal circulation opening of the electric valve 172 is increased according to the current value converted by the water flow detected by the flow sensor 161, the water flow is increased, the current converted by the flow sensor 161 is increased, and the opening of the electric valve 172 is increased; the top of the slag box 7 at the bottom of the third-level sedimentation tank 3 is provided with a filtering grid plate 18 for filtering the slag fly ash and the precipitant combination, and the lower part of the third-level sedimentation tank 3 is provided with a pumping pipeline structure 19 for pumping the slag fly ash and the precipitant combination outwards. After the incinerator slag garbage is cleaned by the water body, the cleaned water body only contains granular silt or other solid wastes, and the water body also contains slag fly ash dissolved in the water body, so that a precipitator is put into the three-stage sedimentation tank 3 with relatively low water flow speed, and the water body can be further filtered to achieve a cleaner effect.
In the control method of the slag water circulation grading sedimentation treatment device of the household garbage incinerator, firstly, sewage generated by cleaning the incinerator slag enters a primary sedimentation tank 1 through a water inlet pipe, silt mixed in the sewage is subjected to primary gravity sedimentation in the primary sedimentation tank 1 and falls into a slag box 7 at the lower part of the primary sedimentation tank 1, and the sewage sequentially passes through a primary filter screen 13, a secondary filter screen 14 and a tertiary filter screen 15, so that the silt or particulate matters with different particle sizes are filtered by the filter screens and fall into the slag boxes 7 in the corresponding sedimentation tanks;
when the filtered slag and the silt fall into the slag box 7, the filtered substances in the slag box 7 are transferred to the bottom of the auger transmission mechanism 9 through the inclined inner bottom surface of the slag box 7, the auger transmission mechanism 9 is driven to work by turning on the motor 11, and the spiral blade 902 drives the slag to continuously move upwards and is discharged outwards through the slag outlet 12;
after the sewage of the embodiment passes through the water inlet pipe 5, part of the water body continues to flow downwards along the water inlet pipe 5, while the other part of the water body flows into the primary sedimentation tank 1 through the flow sensor 161 inside the bypass pipe 16, the flow sensor 161 detects the flow of different water bodies and converts different current values to the electric valve 172, the electric valve 172 adaptively adjusts the opening of the electric valve 172 according to the different current values transmitted by the flow sensor 161, the medicament inside the medicament tank 171 enters the tertiary sedimentation tank 3 through the precipitator feeding pipe 17 to be combined with the slag fly ash dissolved in the water body and precipitate, the slag fly ash and precipitator combination is precipitated on the top surface of the filtering grid plate 18, and the slag fly ash and precipitator combination is pumped outwards through the pumping pipeline structure 19.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The slag water circulation grading sedimentation treatment device of the household garbage incinerator is characterized by comprising a primary sedimentation tank, a secondary sedimentation tank, a tertiary sedimentation tank and a clean water tank, wherein one side of the primary sedimentation tank is communicated with the secondary sedimentation tank, one side of the secondary sedimentation tank, which is far away from the primary sedimentation tank, is communicated with the tertiary sedimentation tank, one side of the tertiary sedimentation tank, which is far away from the secondary sedimentation tank, is communicated with the clean water tank, a water inlet pipe for penetrating the primary sedimentation tank is arranged at the top end of the primary sedimentation tank and one side of the secondary sedimentation tank, which is far away from the secondary sedimentation tank, a water outlet pipe for penetrating the clean water tank is arranged at the top end of the clean water tank, the bottom ends of the primary sedimentation tank, the secondary sedimentation tank and the tertiary sedimentation tank are connected with slag boxes, the back bottom ends of the primary sedimentation tank, the secondary sedimentation tank and the tertiary sedimentation tank are, one side of the top of the conveying box, which is far away from the first-level sedimentation tank, the second-level sedimentation tank and the third-level sedimentation tank, is provided with a slag outlet.
2. The apparatus for circulating, classifying, precipitating and treating the slag water of the household garbage incinerator according to claim 1, wherein the primary, secondary and tertiary precipitating tanks have the same structure, three precipitating tanks are all of right-angle trapezoidal structure with right-angle sides at the top and open bottom, and the primary, secondary and tertiary precipitating tanks are connected with each other and the installation height is decreased progressively.
3. The apparatus for circulating, classifying, and precipitating slag water of a garbage incinerator according to claim 2, wherein a first filter screen is provided between the first-stage sedimentation tank and the second-stage sedimentation tank, a second filter screen is provided between the second-stage sedimentation tank and the third-stage sedimentation tank, a third filter screen is provided between the third-stage sedimentation tank and the clean water tank, and the inner diameters of the filter holes of the first filter screen, the second filter screen, and the third filter screen are gradually reduced.
4. The apparatus for circulating, classifying and settling the slag water of a garbage incinerator as claimed in claim 3, wherein the slag box is an inverted triangle structure with an open top end, and the bottom end of the transfer box is connected to the top end of the slag box and keeps the inner space intercommunicated, and the bottom surface of the slag box is gradually inclined downward toward the bottom of the transfer box.
5. The apparatus for circulating, classifying, settling and treating slag and water of a garbage incinerator according to claim 4, wherein said conveying box is inclined, and the angles between said conveying box and said primary settling tank, said secondary settling tank and said tertiary settling tank are acute angles.
6. The apparatus according to claim 5, wherein the screw conveyor comprises a shaft, the bottom end of the shaft is movably connected to the bottom end of the slag box, the top end of the shaft extends through the top of the conveying box and is connected to the motor box and the motor, the outer circumference of the shaft is surrounded by helical blades, and the inlet end of the slag outlet of each screw conveyor is higher than the inner liquid level of each settling tank.
7. The apparatus for treating refuse incinerator slag water circulation grading precipitation as claimed in claim 6, wherein said helical blades are provided on their surfaces with a plurality of water permeable holes uniformly arranged therethrough.
8. The apparatus for circulating, grading, precipitating and treating water of slag of a household garbage incinerator according to claim 7, wherein the side of the water inlet pipe is connected with a bypass pipe, the middle of the bypass pipe is connected with a flow sensor, the top of the tertiary sedimentation tank is provided with a precipitant feeding pipe, the top end of the precipitant feeding pipe is communicated with a reagent tank, the middle of the precipitant feeding pipe is connected with an electric valve which is electrically connected with the flow sensor, the internal circulation opening of the electric valve increases the water flow and the opening of the electric valve increases according to the value of the current converted from the water flow detected by the flow sensor; the top of the slag box at the bottom of the third-level sedimentation tank is provided with a filtering grid plate for filtering the slag flying ash and the precipitant combination, and the lower part of the third-level sedimentation tank is provided with a pumping pipeline structure for pumping the slag flying ash and the precipitant combination outwards.
9. The control method using the slag water circulation grading precipitation treatment device of the household garbage incinerator according to claim 8 is characterized by comprising the following steps:
step S1: sewage generated by cleaning incineration slag enters the primary sedimentation tank through the water inlet pipe, silt particles mixed in the sewage are subjected to primary gravity sedimentation in the primary sedimentation tank and fall into a slag box at the lower part of the primary sedimentation tank, and the sewage sequentially passes through the primary filter screen, the secondary filter screen and the tertiary filter screen, so that the silt or particles with different particle sizes are filtered by the filter screens and fall into the slag boxes in the corresponding sedimentation tanks;
step S2; filtered slag and silt fall into the slag box, filtered particles in the slag box are transferred to the bottom of the auger transmission mechanism through the inclined inner bottom surface of the slag box, the auger transmission mechanism is driven to work by opening the motor, and the spiral blade drives the slag to continuously move upwards and discharge outwards through the slag outlet;
step S3: after sewage passes through the water inlet pipe, part of water continues to flow downwards along the water inlet pipe, the other part of water flows into the primary sedimentation tank through a flow sensor inside the bypass pipe, the flow sensor detects different flow values of the water and provides different current values for the electric valve, the electric valve adaptively adjusts the opening of the electric valve according to different transmission current values, a medicament inside the medicament tank enters the tertiary sedimentation tank through a precipitator dosing pipe, the medicament is combined with slag fly ash dissolved in the water and precipitates, a slag fly ash and precipitator combination is precipitated on the top surface of the filter grid plate, and the slag fly ash and precipitator combination is pumped outwards through a pumping pipeline structure.
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| CN113680135A (en) * | 2021-08-27 | 2021-11-23 | 四川虹科创新科技有限公司 | Recycling device for water discharging operation of kiln |
| CN114345010A (en) * | 2022-01-26 | 2022-04-15 | 都江堰瑞泰科技有限公司 | Self-filtering device of sedimentation tank |
| CN114873702A (en) * | 2022-05-30 | 2022-08-09 | 广州绿茵环保科技(集团)有限公司 | Slag treatment water circulation grading precipitation treatment device and use method thereof |
| CN114873666A (en) * | 2022-05-19 | 2022-08-09 | 湖北谋创环境技术咨询有限公司 | Environmental engineering wastewater purification device and purification method thereof |
| CN114890590A (en) * | 2022-06-21 | 2022-08-12 | 江西省交通运输科学研究院有限公司 | Domestic sewage treatment device and method |
| CN115710074A (en) * | 2023-01-10 | 2023-02-24 | 华侨大学 | Sewage treatment device in ceramic production process |
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| CN115710074A (en) * | 2023-01-10 | 2023-02-24 | 华侨大学 | Sewage treatment device in ceramic production process |
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