CN217430911U - Flying dust washing filtrating deposits device - Google Patents

Abstract

The application discloses flying dust washing filtrating deposits device, precipitation unit including a plurality of parallel connection, precipitation unit includes the water level appearance, the mud level appearance, the gunbarrel, inlet valve and inlet channel, drainage valve and drainage channel and row mud valve and row mud channel, the water level appearance is used for gathering liquid level height information, the mud level appearance is used for gathering filter residue height information, inlet valve sets up on inlet channel, inlet channel is used for leading-in gunbarrel with flying dust washing filtrating uniformly, drainage valve sets up on drainage channel, drainage channel is used for discharging the supernatant that the sediment obtained to the effluent pond, the setting of row mud valve is on row mud channel, row mud channel is used for discharging the filter residue that the sediment obtained to the filter residue pond. The fly ash washing filtrate precipitating device of this application has solved the separation effect poor to the problem that present fly ash washing filtrate precipitation treatment exists, deals with the expense high, has reached the purpose of practicing thrift the medicament, guaranteeing back level equipment normal operating.

Description

Flying dust washing filtrating deposits device

Technical Field

The application relates to the technical field of industrial wastewater treatment, in particular to a fly ash washing filtrate precipitation device.

Background

In recent years, the cement industry successfully operates in the aspect of cooperatively disposing hazardous wastes, household wastes, sludge, construction wastes and other wastes in a cement kiln, plays a positive role in promoting the development of circular economy, has increasingly obvious potential and benefit, and is affirmed by the government and accepted by the society. At present, the harmless treatment of the domestic garbage mainly adopts three modes of landfill, biochemical treatment and incineration, so that the realization of the resource treatment of the waste incineration fly ash has profound significance. The household garbage incineration fly ash refers to the collected matters of a flue gas purification system generated by household garbage incineration and bottom ash settled at the bottom of a flue and a chimney, and is referred to as fly ash in the text. Fly ash is a hazardous waste with heavy metal hazard characteristics and persistent organic toxicity hazard characteristics to the environment. Meanwhile, the fly ash has the characteristics of stable property, difficult combustion, difficult explosion, no pungent smell, convenient transportation, similar main components with cement raw materials and no other replaceable resource utilization technologies, so that the fly ash is particularly suitable for environment-friendly transformation of cement enterprises. Because the chloride ions in the fly ash can not meet the requirement of putting cement into a kiln, the chloride ions in the fly ash are washed out in a water washing mode, and the fly ash after being washed can enter the cement kiln for synergistic treatment. After washing the fly ash water, water washing filtrate is generated, and the filtrate needs to be subjected to the processes of precipitation, filtration, water quality refining and evaporation salt making, so that zero emission is finally achieved.

In a common sedimentation tank, a coagulant is generally put in for coagulation reaction, then a flocculant is put in for flocculation, and finally sedimentation separation is carried out. However, the fly ash washing filtrate sometimes has high suspended matter content, so that a large amount of coagulant and flocculant needs to be added. If the coagulant and the flocculant are not sufficiently added, suspended matters can flow into the effluent of the sedimentation tank along with the water, and the normal operation of a post-stage filter is seriously influenced. In addition, the other sedimentation tank does not put medicament, but adopts a continuous baffling operation mode, and the mode can lead lighter suspended matters to be brought into the water along with the water flow, thereby not achieving good sedimentation and separation effects.

Disclosure of Invention

An object of this application is to provide a flying dust washing filtrating deposits device, solves current flying dust filtrating and deposits the device separation effect not good, and the flying dust deals with the problem that the expense is high.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: a fly ash washing filtrate precipitation device comprises a plurality of precipitation units connected in parallel; the sedimentation unit includes water level meter, mud level meter, gunbarrel, inlet valve and inlet channel, drain valve and drainage channel and arranges mud valve and row mud channel, the water level meter is used for gathering in the gunbarrel liquid level height information, the mud level meter is used for gathering in the gunbarrel filter residue height information, inlet valve sets up on the inlet channel, inlet channel is used for leading-in flying dust washing filtrating evenly the gunbarrel, drain valve sets up on the drainage channel, drainage channel is used for arranging the supernatant that obtains precipitating to the effluent water sump, it sets up to arrange the mud valve arrange on the mud channel, it is used for arranging the filter residue that obtains to the filter residue sump to arrange the mud channel.

Furthermore, the fly ash washing filtrate precipitation device also comprises a control unit, wherein the control unit is used for controlling the precipitation units to circularly execute the procedures of water inlet, sedimentation, water drainage and sludge discharge, and the control unit is also used for simultaneously controlling the precipitation units to execute different procedures, so that the multiple precipitation units are subjected to sequential batch treatment, and the continuous operation of the device is ensured.

Further, the control unit comprises an acquisition module, a processing module and a control module, wherein the acquisition module is respectively and electrically connected with the water level meter and the mud level meter so as to acquire the liquid level height information and the filter residue height information in the settling tank; the processing module is used for acquiring the data acquired by the acquisition module, comparing the acquired data and outputting the data as control instructions for the water inlet valve, the water discharge valve and the sludge discharge valve; the control module is respectively electrically connected with the water inlet valve, the water discharge valve and the mud discharge valve, and controls the opening states of the water inlet valve, the water discharge valve and the mud discharge valve according to the control instruction output by the processing module.

Further, the processing module is used for acquiring the real-time liquid level height H and the real-time filter residue height H acquired by the acquisition module in real time, and a standard liquid level height delta H and a standard filter residue height delta H are preset in the processing module;

in the water inlet stage, if H is less than delta H, the water inlet valve is opened, the fly ash washing filtrate flows into the settling tank, and if H is more than or equal to delta H, the water inlet valve is closed, and the fly ash washing filtrate stops flowing into the settling tank;

and in the stage of water drainage and sludge discharge, if h is less than delta h, the water drainage valve is opened firstly, supernatant liquid flows into a water outlet pool from the settling tank, the sludge drainage valve is opened again after the water drainage is finished, filter residues enter a filter residue pool from the settling tank, if h is more than or equal to delta h, the sludge drainage valve is opened firstly, the filter residues enter the filter residue pool from the settling tank, the water drainage valve is opened again after the sludge drainage is finished, and supernatant liquid flows into the water outlet pool from the settling tank.

Further, the precipitation unit further comprises an air inlet valve and an air inlet channel, wherein the air inlet valve is arranged on the air inlet channel, and the air inlet channel is suitable for introducing clean air flow into the precipitation tank so as to stir the fly ash washing filtrate.

Further, the intake valve is electrically connected with the control module.

Further, the air inlet channel is communicated with the mud discharge channel, and the air inlet channel is suitable for ejecting airflow to act on filter residues in the mud discharge channel.

Further, the water inlet valve, the water discharge valve, the sludge discharge valve and the air inlet valve are all electromagnetic valves.

Further, the fly ash water washing filtrate precipitation device comprises three sedimentation units.

Compared with the prior art, the beneficial effect of this application lies in:

(1) when the device is operated, the control unit can control a single precipitation unit to circularly execute the procedures of water inlet, sedimentation, water drainage and sludge discharge, and can also control a plurality of precipitation units to execute different procedures, so that the plurality of precipitation units can perform sequential batch treatment, and the continuous operation of the device is ensured;

(2) the settling unit adopts a natural settling method, so that suspended matters are not added into the effluent due to the influence of water flow, a coagulant and a flocculating agent are not required to be added, no medicament is used, the treatment cost of fly ash is reduced, and on the other hand, the medicament is prevented from being added into finished product ash to cause adverse effect on the subsequent cement kiln cooperative treatment;

(3) each sedimentation unit is provided with a mud level meter, and the control unit can determine the height of filter residue in the sedimentation tank according to the mud level meter so as to judge the time of mud discharge and water discharge and the sequence of the mud discharge and the water discharge.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a fly ash wash filtrate precipitation apparatus according to the present application;

FIG. 2 is a schematic structural diagram of a precipitation unit in the fly ash water-washing filtrate precipitation device according to the present application.

In the figure: 1. a precipitation unit; 11. a water level meter; 12. a mud level meter; 13. a settling tank; 14. a water inlet valve; 15. a drain valve; 16. a sludge discharge valve; 17. an air intake valve.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1, the application provides a fly ash washing filtrating sediment device, precipitation unit 1 including a plurality of parallel connection, precipitation unit 1 includes water level meter 11, mud level meter 12, settling cask 13, inlet valve 14 and inhalant canal, drainage valve 15 and drainage channel and arrange mud valve 16 and arrange the mud channel, water level meter 11 is used for gathering liquid level height information in the settling cask 13, mud level meter 12 is used for gathering the interior filter residue height information of settling cask 13, inlet valve 14 sets up on the inhalant canal, the inhalant canal is used for leading-in settling cask 13 with fly ash washing filtrating evenly, drainage valve 15 sets up on drainage channel, drainage channel is used for discharging the supernatant that obtains precipitating to the effluent basin, arrange mud valve 16 and set up on the mud channel, it is used for arranging the filter residue that the sediment obtained to the filter residue pond to arrange the mud channel.

The fly ash washing filtrate precipitation device also comprises a control unit (not shown in the figure), wherein the control unit is used for controlling the precipitation units 1 to circularly execute the procedures of water inlet, sedimentation, water drainage and sludge discharge, and the control unit is also used for simultaneously controlling the precipitation units 1 to execute different procedures, so that the multiple precipitation units 1 are sequentially treated in batches, and the continuous operation of the device is ensured.

The control unit comprises an acquisition module, a processing module and a control module, wherein the acquisition module is respectively and electrically connected with the water level meter 11 and the mud level meter 12 so as to acquire liquid level height information and filter residue height information in the settling tank 13; the processing module is used for acquiring the data acquired by the acquisition module, comparing the acquired data and outputting the data as control instructions for the water inlet valve 14, the water discharge valve 15 and the sludge discharge valve 16; the control module is respectively electrically connected with the water inlet valve 14, the water discharge valve 15 and the mud discharge valve 16 and controls the opening states of the water inlet valve 14, the water discharge valve 15 and the mud discharge valve 16 according to the control instruction output by the processing module.

Specifically, the precipitation unit adopts a natural precipitation method, comprises the procedures of water inlet, precipitation, water discharge and sludge discharge, does not need to add coagulant, flocculant and other medicaments, reduces the treatment cost of fly ash on one hand, and can prevent the medicament from adding finished product ash to cause adverse effect on the subsequent cement kiln cooperative treatment on the other hand; meanwhile, the suspended matters can not be added into the effluent water due to the flow of the water flow in the natural sedimentation, so that the effluent water is turbid. A plurality of 1 parallel connection of precipitation unit, every precipitation unit 1 can all accomplish the process of intaking alone, subsiding, drainage and row mud, and when certain precipitation unit 1 broke down, other precipitation unit 1 still can continue the operation, can not influence the operation of whole device.

The processing module is used for acquiring the real-time liquid level height H and the real-time filter residue height H acquired by the acquisition module in real time, setting a preset standard liquid level height delta H and a standard filter residue height delta H, comparing the acquired real-time height information H and H with the preset standard height information delta H and delta H, and outputting a control instruction to the control module so as to control the opening and closing of the water inlet valve 14, the water discharge valve 15 and the mud discharge valve 16;

in the water inlet stage, if H is less than delta H, the water inlet valve 14 is opened, the fly ash washing filtrate flows into the precipitation tank 13, and if H is more than or equal to delta H, the water inlet valve 14 is closed, and the fly ash washing filtrate stops flowing into the precipitation tank 13;

and in the stage of water drainage and sludge discharge, if h is less than delta h, the water drainage valve 15 is firstly opened, the supernatant flows into the water outlet pool from the sedimentation tank 13, the sludge discharge valve 16 is opened after the water drainage is finished, the filter residue enters the filter residue pool from the sedimentation tank 13, if h is more than or equal to delta h, the sludge discharge valve 16 is firstly opened, the filter residue enters the filter residue pool from the sedimentation tank 13, the water drainage valve 15 is opened after the sludge discharge is finished, and the supernatant flows into the water outlet pool from the sedimentation tank 13.

The precipitation unit 1 further comprises an air inlet valve 17 and an air inlet channel, wherein the air inlet valve 17 is arranged on the air inlet channel, and the air inlet channel is suitable for introducing clean air flow into the precipitation tank 13 so as to stir the fly ash washing filtrate.

The intake valve 17 is electrically connected to the control module. The control module can send an electric signal to the intake valve 17 to control the opening and closing of the intake valve 17. Specifically, after the water inlet stage is finished, the control unit sends a control command, opens the air inlet valve 17 to introduce clean air into the settling tank 13, and stirs the fly ash washing filtrate to ensure that the surface of the filter residue obtained by settling is flat without pits.

Air inlet channel and row's mud passageway intercommunication, when row's mud passageway blocks up, the staff can be in control module department manual opening air inlet valve 17, to in arranging the mud passageway blowout air current act on the filter residue in arranging the mud passageway to solve the problem of arranging the mud passageway and blockking up, treat to arrange the mud passageway and resume the back that flows, close air inlet valve 17.

Preferably, the water inlet valve 14, the water discharge valve 15, the sludge discharge valve 16 and the air inlet valve 17 are all electromagnetic valves, and the water inlet valve 14, the water discharge valve 15, the sludge discharge valve 16 and the air inlet valve 17 can be automatically opened or closed after receiving electric signals of the control module.

Preferably, the fly ash washing filtrate precipitation device comprises three precipitation units, when the device is operated, one precipitation unit is used for feeding water, one precipitation unit is used for precipitation, and one precipitation unit is used for draining water and discharging mud, so that the whole process of a precipitation process is covered, and the continuous operation of the device is ensured.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (9)

1. The utility model provides a flying dust washing filtrating deposits device which characterized in that: comprises a plurality of precipitation units connected in parallel;

the sedimentation unit includes water level meter, mud level meter, gunbarrel, inlet valve and inlet channel, drain valve and drainage channel and arranges mud valve and row mud channel, the water level meter is used for gathering in the gunbarrel liquid level height information, the mud level meter is used for gathering in the gunbarrel filter residue height information, inlet valve sets up on the inlet channel, inlet channel is used for leading-in flying dust washing filtrating evenly the gunbarrel, drain valve sets up on the drainage channel, drainage channel is used for arranging the supernatant that obtains precipitating to the effluent water sump, it sets up to arrange the mud valve arrange on the mud channel, it is used for arranging the filter residue that obtains to the filter residue sump to arrange the mud channel.

2. The fly ash washing filtrate precipitation device of claim 1, further comprising a control unit, wherein said control unit is configured to control said precipitation unit to perform water feeding, sedimentation, water discharging, and sludge discharging processes in a cycle, and said control unit is further configured to simultaneously control a plurality of said precipitation units to perform different processes, so as to implement sequential batch processing of a plurality of said precipitation units and ensure continuous operation of the device.

3. The fly ash washing filtrate precipitation device of claim 2, wherein said control unit comprises an acquisition module, a processing module and a control module, said acquisition module being electrically connected to said water level gauge and said sludge level gauge, respectively, to obtain liquid level height information and residue height information in said precipitation tank; the processing module is used for acquiring the data acquired by the acquisition module, comparing the acquired data and outputting the data as control instructions for the water inlet valve, the water discharge valve and the sludge discharge valve; the control module is respectively electrically connected with the water inlet valve, the water discharge valve and the sludge discharge valve and controls the opening states of the water inlet valve, the water discharge valve and the sludge discharge valve according to the control instruction output by the processing module.

4. The fly ash water washing filtrate precipitation device of claim 3, wherein said processing module is configured to obtain a real-time liquid level height H and a real-time residue height H collected by said collection module in real time, and a standard liquid level height Δ H and a standard residue height Δ H are preset in said processing module;

in the water inlet stage, if H is less than delta H, the water inlet valve is opened, the fly ash washing filtrate flows into the settling tank, and if H is more than or equal to delta H, the water inlet valve is closed, and the fly ash washing filtrate stops flowing into the settling tank;

and in the stage of water drainage and sludge discharge, if h is less than delta h, the water drainage valve is opened firstly, supernatant liquid flows into a water outlet pool from the settling tank, the sludge drainage valve is opened again after the water drainage is finished, filter residues enter a filter residue pool from the settling tank, if h is more than or equal to delta h, the sludge drainage valve is opened firstly, the filter residues enter the filter residue pool from the settling tank, the water drainage valve is opened again after the sludge drainage is finished, and supernatant liquid flows into the water outlet pool from the settling tank.

5. The fly ash water wash filtrate precipitation device of claim 3, wherein said precipitation unit further comprises an air inlet valve and an air inlet channel, said air inlet valve being arranged on said air inlet channel, said air inlet channel being adapted to introduce a clean air flow into said precipitation tank for agitating the fly ash water wash filtrate.

6. A fly ash wash filtrate precipitation device according to claim 5, wherein said air inlet valve is electrically connected to said control module.

7. The fly ash water washing filtrate precipitation device of claim 5, wherein said air inlet channel is in communication with said sludge discharge channel, said air inlet channel being adapted to eject an air flow to act on filter residue in said sludge discharge channel.

8. The fly ash water wash filtrate precipitation device of claim 5, wherein said water inlet valve, said water discharge valve, said sludge discharge valve and said air inlet valve are all solenoid valves.

9. A fly ash wash filtrate precipitation device according to any one of claims 1 to 8, comprising three settling units.

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