CN108101268A - A kind of self-sustaining cycle reuse technology that stone wastewater treatment is washed for railway ballast - Google Patents
A kind of self-sustaining cycle reuse technology that stone wastewater treatment is washed for railway ballast Download PDFInfo
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- CN108101268A CN108101268A CN201810113184.0A CN201810113184A CN108101268A CN 108101268 A CN108101268 A CN 108101268A CN 201810113184 A CN201810113184 A CN 201810113184A CN 108101268 A CN108101268 A CN 108101268A
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- sludge
- flocculation
- railway ballast
- self
- washed
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- 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
Abstract
The present invention relates to technical field of water pollution treatment.It is designed to provide a kind of self-sustaining cycle reuse technology that stone wastewater treatment is washed for railway ballast.The technical solution adopted in the present invention is：Comprise the following steps successively：A, railway ballast cleans；B, wastewater collection；C, level-one coarse sand removes；D, two level fine sand removes；E, tube settling；F, preposition flocculation postposition helps solidifying processing；G, natural subsidence is handled；H, sludge condensation is handled；I, sludge dewatering treatment；J, water self-sustaining cycle.The present invention can greatly improve the treatment effect that railway ballast washes stone waste water, and removal washes coarse sand, fine sand and SS in stone waste water, greatly reduces the consumption of water resource, realize the self-sustaining cycle for washing stone waste water.
Description
Technical field
The present invention relates to technical field of water pollution treatment, wash the self-holding of stone wastewater treatment more particularly to a kind of for railway ballast and follow
Ring reuse technology.
Background technology
With the needs of economic development and daily traffic, the dynamics of railway construction drastically increases.Railway ballast is as carrying
The basis of track and sleeper, water penetration, stability directly influence the security of railway.For this purpose, in railway ballast manufacturing process
It needs to wash railway ballast, a large amount of impurity of its inner clamps band is removed.However railway ballast is washed in stone waste water containing substantial amounts of outstanding
Float SS will cause tremendous influence if not being pocessed directly discharge to environment.In the prior art, lack at present to railway ballast
Wash the complete set of equipments that stone waste water is handled, and using conventional water treatment facilities there are it is many defects of, such as：1st, water consumption
Amount is big, causes huge water resource waste.2nd, stone waste water sand content height is washed, traditional equipment asks poor processing effect of waste water etc.
Topic.
The content of the invention
It is an object of the invention to provide a kind of self-sustaining cycle reuse technology that stone wastewater treatment is washed for railway ballast, to solve
The above problem.
For achieving the above object, the technical solution adopted in the present invention is：One kind washes stone wastewater treatment for railway ballast
Self-sustaining cycle reuse technology, comprise the following steps successively：
A, railway ballast cleans：Railway ballast is cleaned using vibrating screen is washed；
B, wastewater collection：The waste water generated after cleaning is collected using U-shaped aqueduct；
C, level-one coarse sand removes：The waste water being collected into is passed through progress level-one coarse sand removal in Spiral sand-water separator；
D, two level fine sand removes：Waste water after level-one coarse sand is removed is passed through progress two level fine sand in hydrocyclone desander
Removal；
E, tube settling：Waste water after two level fine sand is removed is passed through in inclined-tube sedimentation tank, is removed in advance after natural sedimentation
Part SS obtains sludge；Gained sludge is passed directly into spoil disposal pond；
F, preposition flocculation postposition helps solidifying processing：It will be passed through by the waste water of tube settling in flocculation sediment device, first to waste water
Middle addition flocculant after forming initial flocculation body, then adds in flocculation aid into waste water, is caught with net, crane span structure forms larger particle
Floccule body is more easy to precipitate；Cooperation adds in the adjusting that pH value adjustment agent carries out pH value in flocculant and flocculation aid reaction process；
G, natural subsidence is handled：After preposition flocculation postposition helps solidifying processing, the mixture of floccule body and water is in flocculation sediment device
Interior natural sedimentation, the water body up to standard positioned at flocculation sediment device upper strata are directly discharged into reuse pool, sink after floccule body precipitation in flocculation
Dian Qi lower floors form sludge, and gained sludge is passed through in spoil disposal pond；
H, sludge condensation is handled：Sludge in spoil disposal pond is passed through in sludge concentration tank and is concentrated；
I, sludge dewatering treatment：Sludge is passed through in sludge dewatering equipment after sludge condensation processing and is dehydrated；
J, water self-sustaining cycle：Water in reuse pool is taken back into washing vibrating screen again, railway ballast is cleaned.
Preferably, in steph, the turbid solution on upper strata in sludge concentration tank is passed through in blowoff basin；It, will in step I
The turbid solution of dehydration gained is passed through blowoff basin；Then turbid solution in blowoff basin is passed through to the tube settling described in step E again
In pond.
Preferably, in the step F, using ABC pharmaceutical agent combinations, the A medicaments be flocculant poly aluminium chloride, the B
Medicament is flocculation aid polyacrylamide, and the C medicaments are pH value adjustment agent；The A medicaments, B medicaments and C medicaments are by mass parts
It matches as 80:12:1.
Preferably, the reuse pool is connected with municipal network water supply, and moisturizing is carried out by municipal network water supply.
Preferably, the flocculation sediment device includes multiple flocculation cylinders for being arranged side by side and being interconnected, the flocculation cylinder
Top is cylinder, lower part is in inverted conical, inlet tube is set on the side wall of the flocculation sediment device and pass through inlet tube with tiltedly
The water outlet connection of pipe sedimentation basin；The bottom of each flocculation cylinder is respectively provided with sludge discharge pipe and passes through sludge discharge pipe and row
Mud sump connects, and is additionally provided with a vertical agitating shaft in each cylinder that flocculates, the top of the agitating shaft is with being fixed at wadding
Stirring motor at the top of solidifying cylinder connects, and multigroup stirrer paddle is set on the circumferential surface of agitating shaft；The flocculation sediment device is away from feed liquor
Multiple drainpipes are vertically provided on the side wall of pipe one side, drain valve is set on the drainpipe；On the flocculation sediment device
It is additionally provided with to add in the chemicals dosing plant of flocculant and flocculation aid into flocculation sediment device.
Preferably, the agitating shaft is hollow shaft, is provided with multigroup drug short tube on agitating shaft, multigroup drug short tube is with stirring
Blade is mixed to be spaced apart；The drug short tube radially extends and along agitating shaft with being connected inside agitating shaft；The chemicals dosing plant
Including the dosing sleeve being set in outside agitating shaft, the top and bottom of the dosing sleeve pass through bearing group and agitating shaft structure respectively
Into connection, each bearing group includes a upper bearing (metal) and a lower bearing, between the upper bearing (metal) and lower bearing sealing is set to fill out
Material；The notch of connection agitating shaft surfaces externally and internally is provided on the agitating shaft side wall opposite with dosing sleeve stage casing；It is described to add
Medicine sleeve one side be additionally provided with connected with dosing sleeve inner into medicine be responsible for, it is described into medicine be responsible for stretch out flocculation sediment device outside and
It is connected respectively with flocculant medicine-storing tube and flocculation aid medicine-storing tube by flocculant branch pipe and flocculation aid branch pipe, the flocculant branch pipe
Dosing valve is respectively arranged with on flocculation aid branch pipe.
Preferably, described be responsible for into medicine is provided with dosing pump.
Preferably, the agitating device for being stirred to sludge, the stirring dress are provided in the sludge concentration tank
The rotation axis including being vertically provided at center in sludge concentration tank is put, the lower part of the rotation axis sets the puddle support of frame shape, institute
The agitating plate of several bar shapeds is fixedly installed in the bottom for stating puddle support, and the agitating plate is radially extended along rotation axis；The sludge
The bottom of concentration basin is provided with the groove in inverted conical, and the bottom of the rotation axis is fixedly installed determines with fit depressions
Position block, the locating piece are located in groove；The middle part of the puddle support is connected by the top of oblique pull cable wire and rotation axis.
Preferably, the top of the sludge concentration tank sets mounting bracket, and transparent glass is provided in the mounting bracket
Glass cover.
Preferably, the sludge dewatering equipment is plate and frame sludge dewatering equipment, belt mud dewatering equipment, Centrifugal sludge dehydration
One kind in machine and Stacked sludge dewatering machine.
Beneficial effects of the present invention embody a concentrated reflection of：The treatment effect that railway ballast washes stone waste water can greatly be improved, is removed
Coarse sand, fine sand and the SS in stone waste water are washed, greatly reduces the consumption of water resource, realizes the self-sustaining cycle for washing stone waste water.
1st, since railway ballast washes stone waste water with high sand content, waste water is collected using U-shaped aqueduct, can effectively be subtracted
The deposition of few sandstone impurity ensures to wash the normal collection of stone waste water, prevents from blocking.
2nd, coagulation is carried out to waste water using Spiral sand-water separator, the coarse sand of the 2-10mm contained in waste water is gone
It removes, separation rate reaches 99%；Then hydrocyclone desander carries out two stage treatment, the 0.2-2mm that will contain in waste water to waste water
Fine sand removal, separation rate reaches more than 90%.
3rd, inclined-tube sedimentation tank is recycled to carry out natural sedimentation processing to waste water, part can be removed in advance without adding medicament
SS suspended matters achieve the purpose that save medicament, reduce operating cost.
It 4 and then is helped in preposition flocculation postposition in solidifying processing step, technique first adds in flocculant early period, forms initial flocculation
After body, then flocculation aid is added in into waste water, form the floccule body of larger particle.Deposition efficiency can be effectively improved, is thoroughly gone
Except the SS suspended matters in waste water.
5th, preposition flocculation postposition help it is solidifying treated that water up to standard is filled into reuse pool, then the water in reuse pool is used for
The cleaning of railway ballast.Only need to cycle operation can be realized by dosing, moisturizing, saved water resource, reduce further operation into
This.
Description of the drawings
Fig. 1 is the structure diagram that the present invention uses equipment；
Fig. 2 is the structure diagram of flocculation sediment device；
Fig. 3 is the scheme of installation of medicine adding sleeve；
Fig. 4 is the structure diagram of sludge concentration tank.
Specific embodiment
A kind of with reference to shown in Fig. 1-4 washes the self-sustaining cycle reuse technology of stone wastewater treatment for railway ballast, include successively with
Lower step：
A, railway ballast cleans：Railway ballast is cleaned using vibrating screen 1 is washed.
B, wastewater collection：The waste water generated after cleaning is collected using U-shaped aqueduct 2, U-shaped aqueduct 2 namely section
The surface water channel to take the shape of the letter U, due to usually requiring to make somebody a mere figurehead setting by the top of railway line, generally use, and with certain slope
Degree.Waste water is collected using U-shaped aqueduct 2, can effectively reduce the deposition of sandstone impurity, guarantee is washing stone waste water just
It often collects, prevents from blocking.
C, level-one coarse sand removes：It is thick that the waste water that U-shaped aqueduct 2 is collected into is passed through progress level-one in Spiral sand-water separator 3
Sand removes.Coagulation is carried out to waste water using Spiral sand-water separator 3, the coarse sand of the 2-10mm contained in waste water is removed,
Separation rate reaches 99%.The sand material port of export of Spiral sand-water separator 3 is further typically provided with shaftless screw sediment transport machine, and sand material is defeated
It send to stock ground and carries out unified stacking.
D, two level fine sand removes：It is thin that waste water after level-one coarse sand is removed is passed through progress two level in hydrocyclone desander 4
Sand removes.Hydrocyclone 4 carries out two stage treatment to waste water, and the fine sand of the 0.2-2mm contained in waste water is removed, and separation rate reaches
To more than 90%, after above-mentioned girt-water separation twice, coarse sand and fine sand in waste water are preferably separated, versatility
It is relatively strong, it can adapt to the processing that all kinds of railway ballasts wash stone waste water.
E, tube settling：Waste water after two level fine sand is removed is passed through in inclined-tube sedimentation tank 5, is removed in advance after natural sedimentation
Part SS obtains sludge.Gained sludge is passed directly into spoil disposal pond 6, carries out unification to sludge again after reserves reache a certain level
Processing.The present invention carries out natural sedimentation processing by inclined-tube sedimentation tank 5 to waste water, and part can be removed in advance without adding medicament
SS suspended matters achieve the purpose that save medicament, reduce operating cost.
F, preposition flocculation postposition helps solidifying processing：And then will be passed through by the waste water of tube settling in flocculation sediment device 7, first
Flocculant is added in into waste water, after forming initial flocculation body, then flocculation aid is added in into waste water, is caught with net, crane span structure forms bigger
The floccule body of particle is more easy to precipitate.Cooperation adds in pH value adjustment agent and carries out pH value in flocculant and flocculation aid reaction process
It adjusts.Preposition flocculation postposition helps the essence of solidifying treatment process steps it is, first adding in flocculant into waste water in early period, is formed
After initial flocculation body, then flocculation aid is added in into waste water, form the floccule body of larger particle.Due to the particle bigger of floccule body,
Deposition efficiency can be effectively improved, thoroughly to remove the SS suspended matters in waste water.
It is helped in preposition flocculation postposition in solidifying processing step, using ABC pharmaceutical agent combinations, the A medicaments are flocculant, preferential to select
It selects using aluminium polychloride, the B medicaments are flocculation aid, and prioritizing selection uses polyacrylamide, and the C medicaments are pH value adjustment
Agent, the pH value adjustment agent use commercially available conventional dose.The A medicaments, B medicaments and C medicaments press the proportioning of mass parts
For 80:12:1, the dosage of certain C medicaments should also slightly be adjusted according to actual conditions, and the number usually to fluctuate exists
Between 0.1-0.2, after testing, there is better universality by the ABC pharmaceutical agent combinations of said ratio, for a variety of railway ballasts
Stone waste water is washed, can reach SS concentration≤50mg/L.It is significantly less than the SS concentration of country-level water discharge standard.
The preposition flocculation postposition helps solidifying processing to be carried out in flocculation sediment device 7, and the flocculation sediment device 7 can be commonly used commercially available
Conventional flocculation sediment device 7, certainly, in order to improve the treatment effect to SS, improve the utilization rate of medicament, better way may be used also
To be.The flocculation sediment device 7 includes multiple flocculation cylinders 13 for being arranged side by side and being interconnected, and the top of the flocculation cylinder 13 is in
Cylindrical, lower part is in inverted conical, and the main region of the top of the cylinder 13 that flocculates as flocculation reaction, lower part is as floccule body precipitation
Main region.Integral structure can be used in the multiple flocculation cylinders 13 for forming flocculation sediment device 7, of course for convenient for equipment conveying,
The form of sectional can also be used, as long as ensureing the leakproofness between each flocculation cylinder 13, details are not described herein again.
Inlet tube 14 on the side wall of the flocculation sediment device 7 is set and passes through the water outlet of inlet tube 14 and inclined-tube sedimentation tank 5
Mouth connection.The bottom of each flocculation cylinder 13 is respectively provided with sludge discharge pipe 15 and passes through sludge discharge pipe 15 to be connected with spoil disposal pond 6
Logical, the floccule body that waste water produces after being reacted in flocculation sediment device 7 with flocculant and flocculation aid is discharged after precipitation by sludge
Pipe 15 enters in spoil disposal pond 6.The usual 7 aerial top for being arranged on spoil disposal pond 6 of flocculation sediment device, sludge are discharged into using natural gravity
In spoil disposal pond 6, sludge pump can be also equipped on certain sludge discharge pipe 15, when discharging not smooth, is coordinated using sludge pump and taken out
It inhales.
Due to flocculating effect quality of the SS in waste water in flocculation sediment device 7, except being subject to flocculant and flocculation aid medicament
It is also related with the utilization rate of medicament outside the performance of itself influences.Therefore, cooperation should also be stirred in flocculation sediment device 7, to improve
The utilization rate of medicament.A vertical agitating shaft 16, the top of the agitating shaft 16 are additionally provided in each flocculation cylinder 13 of the invention
The stirring motor connection at the top of flocculation cylinder is held and be fixed at, multigroup stirrer paddle 17 is set on the circumferential surface of agitating shaft 16.It is logical
It crosses stirring motor and drives agitating shaft 16, agitating shaft 16 drives stirrer paddle 17, so as to fulfill the abundant reaction of medicament and waste water.
Certainly, for the ease of adding in medicament into flocculation sediment device 7, it is additionally provided on flocculation sediment device 7 of the present invention
For adding in the chemicals dosing plant of flocculant and flocculation aid into flocculation sediment device 7, it is heavy that chemicals dosing plant can just be provided in flocculation
The dosing mouth and multiple medicament storage tanks at 7 top of shallow lake device.It is heavy that medicament in multiple medicament storage tanks can add in flocculation by dosing mouth
In shallow lake device 7.But in order to improve dispersion degree of the medicament in flocculation sediment device 7, to improve its utilization rate.Better way is to tie
It closes shown in Fig. 2 and 3, the agitating shaft 16 is hollow shaft, and multigroup drug short tube 20, multigroup drug short tube are provided on agitating shaft 16
20 are spaced apart with stirrer paddle 17.The drug short tube 20 radially extends and along agitating shaft 16 with connecting inside agitating shaft 16
It is logical.After medicament is passed through 16 inside of agitating shaft by chemicals dosing plant, using the rotation of agitating shaft 16, its internal medicament is passed through into drug
Short tube 20 is thrown away, so that medicament is evenly distributed in flocculation sediment device 7.
The chemicals dosing plant includes the dosing sleeve 21 being set in outside agitating shaft 16, and the upper end of the dosing sleeve 21 is under
End is made up of bearing group 22 and agitating shaft 16 connects respectively, and each bearing group 22 includes a upper bearing (metal) and a lower bearing,
Airtight and watertight padding is set between the upper bearing (metal) and lower bearing, it is close so as to fulfill the filler between dosing sleeve 21 and agitating shaft 16
Envelope.The notch of connection 15 surfaces externally and internally of agitating shaft is provided on the agitating shaft 16 side wall opposite with 21 stage casing of dosing sleeve
23, medicament enters by notch 23 in agitating shaft 15.21 one side of dosing sleeve is additionally provided with connecting inside dosing sleeve 21
It is logical into medicine supervisor 24, it is described outer into 24 stretching flocculation sediment devices 3 of medicine supervisor and pass through flocculant branch pipe 25 and flocculation aid branch pipe
26 connect respectively with flocculant medicine-storing tube and flocculation aid medicine-storing tube, are set respectively on the flocculant branch pipe 25 and flocculation aid branch pipe 26
It is equipped with dosing valve 27,27 generally use electromagnetic valve of dosing valve, by the way that corresponding dosing valve 27 is controlled to realize different medicines
The addition of agent.
Agitating shaft 16 of the present invention is during high-speed rotating, after internal medicament is thrown away, is formed in agitating shaft 16
Negative pressure, medicament are supplemented from medicine-storing tube from trend agitating shaft 16 is interior, that is to say, that agitating shaft 16 also has certain in high-speed rotation
Pump function.But in view of agitating shaft 16 when slowly running, pumping effect is poor or basic forfeiture, for this purpose, preferably
Way can also be that described be responsible for into medicine on 24 is provided with dosing pump.It is pressurized using dosing pump, medicament is pumped into agitating shaft 16,
So as to ensure agitating shaft 16 at a high speed and under low speed, chemicals dosing plant is capable of providing stable dosing.
G, natural subsidence is handled：After preposition flocculation postposition helps solidifying processing, the mixture of floccule body and water is in flocculation sediment device 7
Interior natural sedimentation, the water body up to standard positioned at 7 upper strata of flocculation sediment device are directly discharged into reuse pool 8, are flocculating after floccule body precipitation
7 lower floor of settling vessel forms sludge, and gained sludge is passed through in spoil disposal pond 6.Flocculation sediment device 7 of the present invention is away from inlet tube 14 1
Multiple drainpipes 18 are vertically provided on the side wall of side, drain valve 19 is set on the drainpipe 18.As shown in Figure 2, into
Liquid pipe 14 is located at left side, then drainpipe 18 is located at right side.The quantity of drainpipe 18 can be two or more, this
Exemplified by sentencing two, two drainpipes 18 are from top to bottom set gradually, and there are one drain valves 19 on each drainpipe 18.Heavy
After the completion of shallow lake, drain valve 19 is opened, the water up to standard positioned at upper strata can be discharged by drainpipe 18 in reuse pool 8.Due to setting
There are multiple discharge pipes 18, staff can select to open the drain valve 19 on the drainpipe 18 of respective heights according to actual conditions,
It can adapt to a variety of operating modes.
H, sludge condensation is handled：Sludge in spoil disposal pond 6 is passed through in sludge concentration tank 9 and is concentrated.The sludge is dense
The agitating device for being stirred to sludge is provided in contracting pond 9, the agitating device can be used shaft cooperation agitating paddle, stir
Mix the structure of bar.By being stirred to sludge, moisture evaporation is promoted to remove moisture excessive in sludge.But to sludge into
During row stirring, if directly directly concentrated the higher sludge of water content, time-consuming longer, better way may be used also therefore
To be that in steph, the turbid solution on upper strata in sludge concentration tank 9 is passed through in blowoff basin 11.It then will be muddy in blowoff basin 11
Turbid is passed through again in the inclined-tube sedimentation tank 5 described in step E, so can not only be reduced the duration of concentration process, also further be carried
The high removal rate to SS in waste water.
Since during concentration, since the concentration of sludge constantly becomes larger, viscosity constantly increases, for this purpose, preferably
Way is described turn as shown in figure 4, the agitating device includes being vertically provided at the rotation axis 28 at center in sludge concentration tank 9
The lower part of moving axis 28 sets the puddle support 29 of frame shape, and the agitating plate 30 of several bar shapeds is fixedly installed in the bottom of the puddle support 29,
The radially extending along rotation axis 28 of agitating plate 30.The bottom of the sludge concentration tank 9 is provided with the groove in inverted conical
31, the bottom of the rotation axis 28 is fixedly installed is located at groove with 31 matched locating piece 32 of groove, the locating piece 32
In 31.The middle part of the puddle support 29 is connected by oblique pull cable wire 33 with the top of rotation axis 28.In the mistake that rotation axis 28 rotates
Cheng Zhong, the locating piece 32 of lower end are located in groove 31, improve its stability in rotation process, and sludge itself is also right
Friction between locating piece 32 and groove 31 has certain lubricating action, is not only simple in structure, effect is good and has extremely long
Service life.In addition, oblique pull cable wire 33 can also play booster action, puddle support 29 is avoided to become during long-time service
Shape.
In addition, the top of sludge concentration tank 9 of the present invention can also set mounting bracket 34, the mounting bracket
Transparent cloche 35 is provided on 34.So as to which solar energy be made full use of to heat sludge, concentration is further improved
Efficiency.Cloche 35 serves not only as isolated part, plays the role of lid, reduces the thermal loss in sludge concentration tank 9, together
When, solar shortwave radiation can pass through cloche 35, and the radiation reflected is long-wave radiation, poor to the penetrability of cloche 35,
Therefore, the setting of cloche 35 may be such that the present invention during concentration sufficiently by solar energy.
I, sludge dewatering treatment：Sludge is passed through in sludge dewatering equipment 10 after sludge condensation processing and is dehydrated.Sludge takes off
Plate and frame sludge dewatering equipment, belt mud dewatering equipment, Centrifugal sludge dehydration machine and Stacked sludge dewatering machine can be used in water dispenser 6
In one kind or a variety of be sequentially connected in series use.Since the turbid solution generated after sludge dewatering contains more impurity, it is not easy to straight
Run in and put, therefore, better way is, in step I, the turbid solution for being dehydrated gained is passed through blowoff basin 11, then by draining
Turbid solution in pond 11 is passed through again in the inclined-tube sedimentation tank 5 described in step E, it is achieved thereby that no pollution row truly
It puts.
J, water self-sustaining cycle：Water in reuse pool 8 is taken back to washing vibrating screen 1 again, railway ballast is cleaned, also
It is to say to clean railway ballast using the water up to standard in reuse pool 8, realizes and water resource is recycled.The present invention only needs
Cycle operation can be realized by dosing, moisturizing, saved water resource, reduced further operating cost.For the ease of this hair
Bright moisturizing, better way can also be that the reuse pool 8 is connected with municipal network water supply 12, pass through municipal network water supply
12 carry out moisturizing.
Claims (10)
1. a kind of self-sustaining cycle reuse technology that stone wastewater treatment is washed for railway ballast, it is characterised in that：Comprise the following steps successively：
A, railway ballast cleans：Railway ballast is cleaned using vibrating screen (1) is washed；
B, wastewater collection：The waste water generated after cleaning is collected using U-shaped aqueduct (2)；
C, level-one coarse sand removes：The waste water being collected into is passed through in Spiral sand-water separator (3) and carries out level-one coarse sand removal；
D, two level fine sand removes：Waste water after level-one coarse sand is removed, which is passed through in hydrocyclone desander (4), carries out two level fine sand
Removal；
E, tube settling：Waste water after two level fine sand is removed is passed through in inclined-tube sedimentation tank (5), removal portion in advance after natural sedimentation
SS is divided to obtain sludge；Gained sludge is passed directly into spoil disposal pond (6)；
F, preposition flocculation postposition helps solidifying processing：It will be passed through by the waste water of tube settling in flocculation sediment device (7), first into waste water
Flocculant is added in, after forming initial flocculation body, then flocculation aid is added in into waste water, is caught with net, the wadding of crane span structure formation larger particle
Solidifying body, is more easy to precipitate；Cooperation adds in the adjusting that pH value adjustment agent carries out pH value in flocculant and flocculation aid reaction process；
G, natural subsidence is handled：After preposition flocculation postposition helps solidifying processing, the mixture of floccule body and water is in flocculation sediment device (7)
Natural sedimentation, the water body up to standard positioned at flocculation sediment device (7) upper strata are directly discharged into reuse pool (8), are wadding a quilt with cotton after floccule body precipitation
Solidifying settling vessel (7) lower floor forms sludge, and gained sludge is passed through in spoil disposal pond (6)；
H, sludge condensation is handled：Sludge in spoil disposal pond (6) is passed through in sludge concentration tank (9) and is concentrated；
I, sludge dewatering treatment：Sludge is passed through in sludge dewatering equipment (10) after sludge condensation processing and is dehydrated；
J, water self-sustaining cycle：Water in reuse pool (8) is taken back to washing vibrating screen (1) again, railway ballast is cleaned.
2. the self-sustaining cycle reuse technology according to claim 1 that stone wastewater treatment is washed for railway ballast, it is characterised in that：
In step H, the turbid solution on sludge concentration tank (9) interior upper strata is passed through in blowoff basin (11)；In step I, gained will be dehydrated
Turbid solution is passed through blowoff basin (11)；Then turbid solution in blowoff basin (11) is passed through to the inclined-tube sedimentation tank described in step E again
(5) in.
3. the self-sustaining cycle reuse technology according to claim 2 that stone wastewater treatment is washed for railway ballast, it is characterised in that：Institute
It states in step F, using ABC pharmaceutical agent combinations, the A medicaments are flocculant poly aluminium chloride, and the B medicaments are flocculation aid polypropylene
Amide, the C medicaments are pH value adjustment agent；The A medicaments, B medicaments and C medicaments are 80 by the proportioning of mass parts:12:1.
4. the self-sustaining cycle reuse technology according to claim 3 that stone wastewater treatment is washed for railway ballast, it is characterised in that：Institute
It states reuse pool (8) to connect with municipal network water supply (12), moisturizing is carried out by municipal network water supply (12).
5. the self-sustaining cycle reuse technology according to claim 4 that stone wastewater treatment is washed for railway ballast, it is characterised in that：Institute
Stating flocculation sediment device (7) includes multiple flocculation cylinders (13) for being arranged side by side and being interconnected, and the top of the flocculation cylinder (13) is in
Cylindrical, lower part is in inverted conical, and inlet tube (14) is set on the side wall of the flocculation sediment device (7) and passes through inlet tube (14)
It is connected with the water outlet of inclined-tube sedimentation tank (5)；The bottom of each flocculation cylinder (13) is respectively provided with sludge discharge pipe (15) and leads to
It crosses sludge discharge pipe (15) to connect with spoil disposal pond (6), a vertical agitating shaft (16) is additionally provided in the cylinder (13) that each flocculates,
The top of the agitating shaft (16) is connected with the stirring motor being fixed at the top of flocculation cylinder (13), the circumferential surface of agitating shaft (16)
It is upper that multigroup stirrer paddle (17) is set；The flocculation sediment device (7) is vertically set on the side wall away from inlet tube (14) one side
There are multiple drainpipes (18), drain valve (19) is set on the drainpipe (18)；Use is additionally provided on the flocculation sediment device (7)
In the chemicals dosing plant that flocculant and flocculation aid are added in into flocculation sediment device (7).
6. the self-sustaining cycle reuse technology according to claim 5 that stone wastewater treatment is washed for railway ballast, it is characterised in that：Institute
Agitating shaft (16) is stated as hollow shaft, is provided with multigroup drug short tube (20) on agitating shaft (16), multigroup drug short tube (20) is with stirring
Blade (17) is mixed to be spaced apart；The drug short tube (20) radially extends and along agitating shaft (16) with connecting inside agitating shaft (16)
It is logical；The chemicals dosing plant includes being set in the dosing sleeve (21) of agitating shaft (16) outside, the upper end of the dosing sleeve (21) and
Lower end is made up of bearing group (22) and agitating shaft (16) connects respectively, and each bearing group (22) includes a upper bearing (metal) and one
Lower bearing sets airtight and watertight padding between the upper bearing (metal) and lower bearing；The agitating shaft (16) and dosing sleeve (21) stage casing phase
To side wall on be provided with connection agitating shaft (16) surfaces externally and internally notch (23)；Dosing sleeve (21) one side is additionally provided with
(24) are responsible for being connected inside dosing sleeve (21) into medicine, it is described to stretch out flocculation sediment device (7) outside into medicine supervisor (24) and lead to
It crosses flocculant branch pipe (25) and flocculation aid branch pipe (26) connects respectively with flocculant medicine-storing tube and flocculation aid medicine-storing tube, the flocculation
Dosing valve (27) is respectively arranged on agent branch pipe (25) and flocculation aid branch pipe (26).
7. the self-sustaining cycle reuse technology according to claim 6 that stone wastewater treatment is washed for railway ballast, it is characterised in that：Institute
It states to be responsible on (24) into medicine and is provided with dosing pump.
8. the self-sustaining cycle reuse technology according to claim 7 that stone wastewater treatment is washed for railway ballast, it is characterised in that：Institute
The agitating device being provided in sludge concentration tank (9) for being stirred to sludge is stated, the agitating device includes vertically arranged
Rotation axis (28) at sludge concentration tank (9) interior center, the lower part of the rotation axis (28) set the puddle support (29) of frame shape, institute
The agitating plate (30) of several bar shapeds, footpath of the agitating plate (30) along rotation axis (28) is fixedly installed in the bottom for stating puddle support (29)
To extension；The bottom of the sludge concentration tank (9) is provided with the groove (31) in inverted conical, the bottom of the rotation axis (28)
It is fixedly installed and is located at groove (31) matched locating piece (32), the locating piece (32) in groove (31)；The stirring
The middle part of frame (29) is connected by oblique pull cable wire (33) with the top of rotation axis (28).
9. the self-sustaining cycle reuse technology according to claim 8 that stone wastewater treatment is washed for railway ballast, it is characterised in that：Institute
The top for stating sludge concentration tank (9) sets mounting bracket (34), and transparent cloche is provided on the mounting bracket (34)
(35)。
10. the self-sustaining cycle reuse technology according to claim 9 that stone wastewater treatment is washed for railway ballast, it is characterised in that：
The sludge dewatering equipment (10) is plate and frame sludge dewatering equipment, belt mud dewatering equipment, Centrifugal sludge dehydration machine and folded spiral shell formula
One kind in sludge dewatering equipment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113184.0A CN108101268B (en) | 2018-02-05 | 2018-02-05 | Self-sustaining recycling process for treating ballast stone washing wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810113184.0A CN108101268B (en) | 2018-02-05 | 2018-02-05 | Self-sustaining recycling process for treating ballast stone washing wastewater |
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| CN108101268B CN108101268B (en) | 2020-07-14 |
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| CN201810113184.0A Expired - Fee Related CN108101268B (en) | 2018-02-05 | 2018-02-05 | Self-sustaining recycling process for treating ballast stone washing wastewater |
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| CN109368844A (en) * | 2018-09-10 | 2019-02-22 | 广州市龙粤环保机械设备有限公司 | A kind of washed-out sand waste water treatment system |
| CN109721191A (en) * | 2019-03-05 | 2019-05-07 | 江苏伊恩赛浦环保科技有限公司 | A kind of sandstone building stones production wastewater treatment system |
| CN110015782A (en) * | 2019-05-05 | 2019-07-16 | 广州羊城管桩有限公司 | A kind of tubular pole station-service energy-saving and emission-reduction system |
| CN111939608A (en) * | 2020-08-10 | 2020-11-17 | 杨国庆 | Sewage treatment plant is used in weaving based on sewage flows fast |
| CN112374653A (en) * | 2020-11-19 | 2021-02-19 | 中国水利水电第九工程局有限公司 | Hydraulic classification separation and fine sand recovery method for treating wastewater from sandstone production |
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