CN211069316U - Tertiary filtration sedimentation tank - Google Patents

Abstract

The utility model provides a three-stage filtration sedimentation tank, which comprises a total sedimentation tank, wherein the inner part of the total sedimentation tank is divided into a first sedimentation tank, a second sedimentation tank and a third sedimentation tank which are sequentially arranged from left to right, a water inlet pipe is arranged at the top of the first sedimentation tank, a water outlet pipe is arranged at the right side of the third sedimentation tank, a first overflow port is arranged at the upper part between the first sedimentation tank and the second sedimentation tank, a first filter plate is detachably arranged in the first overflow port, a second overflow port is arranged at the upper part between the second sedimentation tank and the third sedimentation tank, a second filter plate is detachably arranged in the second overflow port, a first sewage discharge pipe is arranged at the bottom of the first filtration tank, a second sewage discharge pipe is arranged at the bottom of the second filtration tank, a third sewage discharge pipe is arranged at the bottom of the third sedimentation tank, therefore, the utility model has the advantages that through three-stage sedimentation, is beneficial to removing miscellaneous coal and sundries in a ladder way.

Description

Tertiary filtration sedimentation tank

Technical Field

The utility model belongs to the technical field of coal conveying system contains coal waste water recovery, in particular to tertiary filtration sedimentation tank.

Background

At present, a large amount of water is used in the power generation process of a thermal power plant and a thermal power plant, and the water-saving water-; some of the waste water used in the power generation process of thermal power plants and thermal power plants is discharged, the discharged waste water mainly comprises coal-containing waste water which mainly comes from coal conveying system flushing water, coal washing waste water, mine drainage water, rainwater in coal storage yards and the like, so that a lot of granular coal exists in the coal-containing waste water, if the existing coal-containing waste water adopts a natural discharge mode, the black coal-containing waste water is discharged to flow freely, so that not only serious pollution is caused to the surrounding environment, but also great waste of water resources is caused, wherein after granular coal is precipitated during discharge, the equipment and pipelines for water discharge are easily blocked, in recent years, along with the increasingly strict requirements on environmental protection, the zero emission requirement is put forward to the waste water in the power industry, therefore, the coal-containing waste water generated by the coal conveying system of the generator set in the prior art is recycled by a recovery pump after passing through a secondary sedimentation tank, coal-containing wastewater firstly passes through the filter tank and then enters the secondary sedimentation tank after sedimentation, and then is collected by the recovery pump, but when the coal-containing wastewater contains more miscellaneous coal and sundries, the sedimentation of the primary filtration tank is full or the water flow and water speed are high, a large amount of miscellaneous coal and sundries enter the secondary sedimentation filter tank and then are collected and utilized by the recovery pump, so that the inlet of the wastewater recovery pump is blocked until the operation is stopped.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tertiary filtration sedimentation tank has solved the condition that there are miscellaneous coal and debris can block up the recovery pump in the secondary sedimentation tank among the prior art, simultaneously, through tertiary sediment, does benefit to the problem that miscellaneous coal and debris were clear away to the ladder.

The technical scheme of the utility model is realized like this: a three-stage filtration sedimentation tank comprises a total sedimentation tank, the inner part of the total sedimentation tank is divided into a first sedimentation tank, a second sedimentation tank and a third sedimentation tank which are sequentially arranged from left to right and have the same shape and size, a water inlet pipe is arranged at the top of the first sedimentation tank, a water outlet pipe is arranged at the right side of the third sedimentation tank, a first overflow port is arranged at the upper part between the first sedimentation tank and the second sedimentation tank, a first filter plate is detachably arranged in the first overflow port, a second overflow port is arranged at the upper part between the second sedimentation tank and the third sedimentation tank, a second filter plate is detachably arranged in the second overflow port, the first overflow port and the second overflow port have the same size and shape, the first filter plate and the second filter plate have the same size and shape, the bottoms of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank are respectively provided with cambered surfaces with the same radian, a first sewage discharge pipe is arranged at the bottom of the first filter tank, the bottom of the second filter tank is communicated with a second blow-off pipe, the bottom of the third sedimentation tank is communicated with a third blow-off pipe, the first blow-off pipe is provided with a first valve, the second blow-off pipe is provided with a second valve, and the third blow-off pipe is provided with a third valve.

The coal-containing wastewater enters the first sedimentation tank through the water inlet pipe and is gathered in the first sedimentation tank, so that the sewage amount in the first sedimentation tank gradually increases, most of miscellaneous coal and sundries in the coal-containing wastewater can be precipitated in the first sedimentation tank in the process, along with the increasing of the coal-containing wastewater in the first sedimentation tank, the coal-containing wastewater can enter the second sedimentation tank through the first overflow port between the first sedimentation tank and the second sedimentation tank, because the first filter plate is detachably arranged in the first overflow port, the coal-containing wastewater entering the second sedimentation tank from the first sedimentation tank can enter the second sedimentation tank after being filtered through the first filter plate, the quantity of miscellaneous coal and sundries in the coal-containing wastewater entering the second sedimentation tank is less, and when the sedimentation tank in the first sedimentation tank is full or the water flow and water flow are faster, the coal-containing wastewater which is not filtered through the first filter plate from the first sedimentation tank enters the second sedimentation tank, the gathering deposits in the second electricity generation pond, then enter into the third sedimentation tank through the filtration of second filter, the coal-containing waste water that enters into the inside of third sedimentation tank deposits, then discharge through the outlet pipe, carry out reuse, at this in-process, operating personnel can be regularly with first valve, second valve or third valve open, with the miscellaneous coal and the debris formation precipitate discharge of first sedimentation tank bottom, second sedimentation tank bottom or third sedimentation tank bottom, there are miscellaneous coal and debris less in the coal-containing waste water that the drain pipe discharged from the third sedimentation tank, reduce the emergence of blockking up the recycle pump condition, simultaneously, through secondary filtration and tertiary sediment, do benefit to the ladder and clear away the problem of miscellaneous coal and debris.

As a preferred embodiment, bilateral symmetry is provided with first slot around the first overflow mouth, both sides an organic whole is provided with the first inserted block corresponding with first slot around the first filter, first inserted block inserts in the first slot, make and be connected more firmly between first filter and the first overflow mouth, when demolising first filter, can directly draw out first filter from first overflow mouth is inside, it can realize inside inserting first overflow mouth with new first filter frame during the change, make the dismantlement between first filter frame and the first overflow mouth more convenient.

As a preferred implementation mode, the bottom of the first overflow port is provided with a second slot, the bottom of the first filter plate is integrally provided with a second insertion block corresponding to the second slot, the second insertion block is inserted into the second slot, and through the cooperation between the second insertion block and the second slot, the contact area between the first filter plate and the first overflow port is increased, and the tightness between the first filter plate and the first overflow port is improved.

As a preferred embodiment, the first filter plate comprises a baffle and a filter frame, the filter frame can be detachably arranged at the bottom of the baffle, the width between the front and the back of the baffle is greater than the width between the front and the back of the first overflow port, the front and the back of the bottom of the baffle are respectively in contact with the front and the back side walls of the total sedimentation tank, the first insert block is positioned at the front and the back sides of the filter frame, the second insert block is positioned at the bottom of the filter frame, the insert connection between the first insert block and the first slot, the insert connection between the second insert block and the second slot is adopted, the filter frame is fixed inside the first overflow port, the width between the front and the back of the baffle is greater than the width between the front and the back of the first overflow port, therefore, after the filter frame is inserted inside the first overflow port, the baffle is positioned on the front and the back side walls of the total sedimentation tank, and.

As a preferred implementation mode, the width of the baffle is larger than that of the filter frame, the front side and the rear side of the baffle are integrally provided with the check blocks, the check blocks are vertically arranged at the bottom of the baffle, the interval between the baffle and the filter frame is arranged, the front side wall and the rear side wall of the total sedimentation tank are respectively inserted into the gap between the filter frame and the front side baffle and the gap between the filter frame and the rear side baffle, and the first filter plate is mounted in the first overflow port and taken out from the first overflow port more conveniently through the matching between the check blocks and the baffle.

As a preferred embodiment, the bottom of the baffle is provided with a groove, the bottom of the groove is open, the top of the filter frame is inserted into the groove, the left side and the right side of the filter frame are in threaded connection with the left side wall and the right side wall of the groove through bolts, the baffle and the filter frame are convenient to disassemble, and miscellaneous coal and sundries in the filter frame are cleaned, so that the miscellaneous coal and the sundries are more convenient to clean.

As a preferred embodiment, the inside setting of filter frame is the cavity form, and the filter screen is fixed to be provided with in the filter frame inside, and the filter screen is wavy setting inside filter frame, can increase filter area for the filtration efficiency of coal-containing waste water is higher.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

1. through three-stage sedimentation, under the condition that the first sedimentation tank is full or the water flow and water speed are high, the second sedimentation tank can filter and precipitate the coal-containing wastewater, so that the quantity of miscellaneous coal and sundries for building trees is small during the recovery of the coal-containing wastewater, and the stable operation of the recovery of the coal-containing wastewater is ensured;

2. the first filter plate and the second filter plate are more convenient to detach, mount or replace from the first overflow port or the second overflow port;

3. through the setting of filter frame and filter screen, increase the filter area who contains coal waste water for the filtration efficiency of containing coal waste water is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is another schematic structural diagram of the present invention;

FIG. 3 is a schematic structural diagram of the first sedimentation tank in FIG. 2;

FIG. 4 is a schematic structural diagram of the first filter frame in FIG. 3;

FIG. 5 is another schematic structural diagram of the first filter frame of FIG. 3;

FIG. 6 is a schematic structural view of the baffle and the filter frame of FIG. 5;

FIG. 7 is a schematic vertical cross-sectional view of the first filter frame of FIG. 5;

fig. 8 is a schematic cross-sectional view of the first filter frame of fig. 5.

In the figure, 1-total settling tank; 2-a valve; 11-a first sedimentation tank; 12-a second sedimentation tank; 13-a third sedimentation tank; 14-a water inlet pipe; 15-water outlet pipe; 16-a first overflow port; 17-a first filter plate; 18-a second overflow; 19-a second filter plate; 111-a first drain pipe; 121-a second sewage draining pipe; 131-a third sewage draining pipe; 161-a first slot; 162-a second slot; 171-a first insert; 172-a second insert; 173-a baffle; 174-a filter frame; 1731-a block; 1732-grooves; 1733-bolts; 1741-Filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 8, a three-stage filtration sedimentation tank comprises a total sedimentation tank 1, the total sedimentation tank 1 is internally divided into a first sedimentation tank 11, a second sedimentation tank 12 and a third sedimentation tank 13 which are sequentially arranged from left to right and have the same shape and size, a water inlet pipe 14 is arranged at the top of the first sedimentation tank 11, a water outlet pipe 15 is arranged at the right side of the third sedimentation tank 13, a first overflow port 16 is arranged at the upper part between the first sedimentation tank 11 and the second sedimentation tank 12, a first filter plate is detachably arranged in the first overflow port 16, a second overflow port 17 is arranged at the upper part between the second sedimentation tank 12 and the third sedimentation tank 13, a second filter plate 19 is detachably arranged in the second overflow port 17, the first overflow port 16 and the second overflow port 17 have the same size and shape, the first filter plate and the second filter plate 19 have the same size and shape, the bottoms of the first sedimentation tank 11, the second sedimentation tank 12 and the third sedimentation tank 13 have the same radian and arc surfaces, the first filtering tank bottom is provided with first blow off pipe 111, and second filtering tank bottom intercommunication is provided with second blow off pipe 121, and third sedimentation tank 13 bottom intercommunication is provided with third blow off pipe 131, is provided with valve 2 on the first blow off pipe 111, is provided with valve 2 on the second blow off pipe 121, is provided with valve 2 on the third blow off pipe 131.

The coal-containing wastewater enters the first sedimentation tank 11 through the water inlet pipe 14 and is gathered in the first sedimentation tank 11, so that the sewage amount in the first sedimentation tank 11 gradually increases, in the process, most of miscellaneous coal and sundries in the coal-containing wastewater can be settled in the first sedimentation tank 11, along with the increasing of the coal-containing wastewater in the first sedimentation tank 11, the coal-containing wastewater can enter the second sedimentation tank 12 through the first overflow port 16 between the first sedimentation tank 11 and the second sedimentation tank 12, because the first filter plate is detachably arranged in the first overflow port 16, the coal-containing wastewater entering the second sedimentation tank 12 from the first sedimentation tank 11 can enter the second sedimentation tank 12 after being filtered through the first filter plate, the miscellaneous coal and sundries in the coal-containing wastewater entering the second sedimentation tank 12 are less, and when the sedimentation tank or the water flow and the water flow in the first sedimentation tank 11 are full of water, the coal-containing wastewater which is not filtered by the first filter plate from the first sedimentation tank 11 enters the second sedimentation tank 12, is gathered and precipitated in the second battery, then enters the third sedimentation tank 13 after being filtered by the second filter plate 19, enters the coal-containing wastewater inside the third sedimentation tank 13 and is precipitated, and then is discharged through the water outlet pipe 15 for reuse.

The bilateral symmetry is provided with first slot 161 around first overflow mouth 16, both sides an organic whole is provided with the first inserted block 171 corresponding with first slot 161 around the first filter, first inserted block 171 inserts in first slot 161, make and be connected more firmly between first filter and the first overflow mouth 16, when dismantling first filter, can directly draw out first filter from first overflow mouth 16 is inside, insert first overflow mouth 16 inside with new first filter frame 174 during the change and can realize, make the dismantlement between first filter frame 174 and the first overflow mouth 16 more convenient. The bottom of first overflow mouth 16 is provided with second slot 162, and first filter bottom an organic whole is provided with the second inserted block 172 corresponding with second slot 162, and second inserted block 172 inserts in second slot 162, through the cooperation between second inserted block 172 and the second slot 162 for area of contact between first filter and the first overflow mouth 16 increases, increases the fastening nature of being connected between first filter and the first overflow mouth 16.

The first filter plate comprises a baffle 173 and a filter frame 174, the filter frame 174 is detachably arranged at the bottom of the baffle 173, the width between the front and the back of the baffle 173 is larger than the width between the front and the back of the first overflow port 16, the front and the back sides of the bottom of the baffle 173 are respectively arranged in contact with the front and the back side walls of the total sedimentation tank 1, the first insertion blocks 171 are arranged at the front and the back sides of the filter frame 174, the second insertion blocks 172 are arranged at the bottom of the filter frame 174, the filter frame 174 is fixed inside the first overflow opening 16 by the insertion between the first insertion block 171 and the first insertion groove 161 and the insertion between the second insertion block 172 and the second insertion groove 162, since the width between the front and rear of the baffle 173 is greater than the width between the front and rear of the first overflow vent 16, therefore, after the filter frame 174 is inserted into the interior of the first overflow port 16, the baffles 173 are positioned on both front and rear side walls of the overall settling tank 1, therefore, it is more convenient to take the first filter plate out of the first overflow outlet 16 by the baffle 173.

The width of baffle 173 is greater than the width of filtering frame 174, baffle 173 is integrative to be provided with dog 1731 in both sides around, dog 1731 sets up in the bottom of baffle 173 perpendicularly, the interval sets up between baffle 173 and the filtering frame 174, two lateral walls around total sedimentation tank 1 insert respectively in the clearance between filtering frame 174 and the preceding side baffle 173 and in the clearance that filtering frame 174 and back side baffle 173 formed, through the cooperation between dog 1731 and the baffle 173, it is more convenient when installing the first filter in first overflow mouth 16 and taking out the first filter from first overflow mouth 16.

The bottom of the baffle 173 is provided with a groove 1732, the bottom of the groove 1732 is open, the top of the filter frame 174 is inserted into the groove 1732, the left side and the right side of the filter frame 174 are in threaded connection with the left side wall and the right side wall of the groove 1732 through bolts 1733, the baffle 173 and the filter frame 174 are convenient to disassemble, and the miscellaneous coal and the sundries in the filter frame 174 are cleaned, so that the miscellaneous coal and the sundries are more convenient to clean. The inside hollow form that sets up of filter frame 174, the inside fixed filter screen 1741 that is provided with of filter frame 174, filter screen 1741 are wavy setting inside filter frame 174, can increase filter area for the filtration efficiency of coal-containing waste water is higher.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A three-stage filtration sedimentation tank comprises a total sedimentation tank, and is characterized in that the inner part of the total sedimentation tank is divided into a first sedimentation tank, a second sedimentation tank and a third sedimentation tank which are sequentially arranged from left to right and have the same shape and size, a water inlet pipe is arranged at the top of the first sedimentation tank, a water outlet pipe is arranged at the right side of the third sedimentation tank, a first overflow port is arranged at the upper part between the first sedimentation tank and the second sedimentation tank, a first filter plate is detachably arranged in the first overflow port, a second overflow port is arranged at the upper part between the second sedimentation tank and the third sedimentation tank, a second filter plate is detachably arranged in the second overflow port, the first overflow port and the second overflow port have the same size and shape, the first filter plate and the second filter plate have the same size and shape, and the bottom of the first sedimentation tank, the second sedimentation tank and the bottom of the third sedimentation tank have the same radian, the bottom of the first filtering tank is provided with a first sewage discharge pipe, the bottom of the second filtering tank is communicated with a second sewage discharge pipe, and the bottom of the third settling tank is communicated with a third sewage discharge pipe.

2. The three-stage filtration and sedimentation tank according to claim 1, wherein the first overflow port is symmetrically provided with first slots at front and rear sides thereof, the first filter plate is integrally provided with first insertion blocks corresponding to the first slots at front and rear sides thereof, and the first insertion blocks are inserted into the first slots.

3. The three-stage filtering sedimentation tank of claim 2, wherein the bottom of the first overflow port is provided with a second slot, the bottom of the first filter plate is integrally provided with a second insert corresponding to the second slot, and the second insert is inserted into the second slot.

4. The three-stage filtration sedimentation tank according to claim 3, wherein the first filter plate comprises a baffle plate and a filter frame, the filter frame is detachably disposed at the bottom of the baffle plate, the width between the front and the back of the baffle plate is larger than the width between the front and the back of the first overflow port, the front and the back sides of the bottom of the baffle plate are respectively disposed in contact with the front and the back side walls of the total sedimentation tank, the first insertion blocks are disposed at the front and the back sides of the filter frame, and the second insertion blocks are disposed at the bottom of the filter frame.

5. The three-stage filtration sedimentation tank according to claim 4, wherein the width of the baffle is larger than that of the filter frame, the front and rear sides of the baffle are integrally provided with stoppers which are vertically arranged at the bottom of the baffle, the baffle and the filter frame are arranged at intervals, and the front and rear side walls of the total sedimentation tank are respectively inserted into a gap between the filter frame and the front side baffle and a gap between the filter frame and the rear side baffle.

6. The three-stage filtration and sedimentation tank according to claim 4, wherein a groove is formed in the bottom of the baffle, the bottom of the groove is open, the top of the filter frame is inserted into the groove, and the left side and the right side of the filter frame are in threaded connection with the left side and the right side of the groove through bolts.

7. The three-stage filtration sedimentation tank according to claim 4, wherein the inside of the filtration frame is hollow, a filter screen is fixedly arranged inside the filtration frame, and the filter screen is arranged inside the filtration frame in a wavy manner.

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