CN109809670A - A kind of drying device of power plant desulfurization denitration wastewater sludge - Google Patents
A kind of drying device of power plant desulfurization denitration wastewater sludge Download PDFInfo
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- CN109809670A CN109809670A CN201910280881.XA CN201910280881A CN109809670A CN 109809670 A CN109809670 A CN 109809670A CN 201910280881 A CN201910280881 A CN 201910280881A CN 109809670 A CN109809670 A CN 109809670A
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- 239000010802 sludge Substances 0.000 title claims abstract description 144
- 239000002351 wastewater Substances 0.000 title claims abstract description 30
- 238000001035 drying Methods 0.000 title claims abstract description 23
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 19
- 230000023556 desulfurization Effects 0.000 title claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 42
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 23
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 23
- 239000004571 lime Substances 0.000 claims abstract description 23
- 238000005406 washing Methods 0.000 claims abstract description 13
- 230000003139 buffering effect Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 14
- 241000239290 Araneae Species 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 239000000872 buffer Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000005201 scrubbing Methods 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 49
- 238000000034 method Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000000262 chemical ionisation mass spectrometry Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of drying devices of power plant desulfurization denitration wastewater sludge, belong to the technical field of power plant's sludge drying, device includes sludge surge tank and the blade dryer that is connected to sludge surge tank, the outlet end of the blade dryer is connected to sludge crushing surge tank, lime set tank and spray scrubber respectively, the outlet end of sludge crushing surge tank is connected to finished product warehouse, lime set tank and spray scrubber are connected to tail gas heat exchanger respectively, and the outlet end of tail gas heat exchanger is connected to tail gas collecting device and boiler system respectively.The high temperature and humidity tail gas being evaporated in blade dryer in the present invention is cooled down in scrubbing tower, is dried, only having a little partial tail gas to be discharged to subsequent exhaust gas purification system after dedusting.And the washed water spray cooling of high temperature and humidity tail gas being evaporated from blade dryer is dried, most of vapor is condensed into water, washing water circulated sprinkling, a small amount of sewage for needing the only spray washing tower bottom of emission treatment periodically to discharge in tail gas.
Description
Technical field
The invention belongs to the technical fields of power plant's sludge drying, and in particular to a kind of power plant desulfurization denitration wastewater sludge is done
Dry device.
Background technique
Sulfate and nitrate containing high level in the tail gas desulfurization denitration wastewater sludge of boiler of power plant, also contains one
Determine the suspended matter (run-of-the-mill score about 1%-3%) of concentration, certain steam power plant's desulphurization denitration waste water is arranged after multiple-effect evaporation is concentrated
About 50% sludge of solid content is flowable state wastewater sludge, and density is about 1500kg/m3, to be further reduced sludge volume, facilitate place
It sets, sludge need to be carried out dehydrating.Currently, domestic each power plant desulfurization denitration wastewater sludge treatment device is mainly with plate and frame pressure
Based on filter.Plate and frame type filter-press has the disadvantage that: 1. intermittently operated, and the cleaning frequency is continuous not less than that 1 times a week, cannot accomplish
Operation；2. process CIMS is long, filter press is matched with high-pressure cleaning device, filtered water tank and high pressure cleaning pump, occupied area compared with
Greatly.
Summary of the invention
The object of the present invention is to provide a kind of drying device of power plant desulfurization denitration wastewater sludge, with solve existing apparatus without
The problems such as method continuous operation, too long in flow, occupied area are larger, energy conservation is poor.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of drying device of power plant desulfurization denitration wastewater sludge, including sludge surge tank and the blade being connected to sludge surge tank
Drying machine, the outlet end of the blade dryer are connected to sludge crushing surge tank, lime set tank and spray scrubber respectively, sludge
The outlet end of broken surge tank is connected to finished product warehouse, and lime set tank and spray scrubber are connected to tail gas heat exchanger respectively, tail gas
The outlet end of heat exchanger is connected to tail gas collecting device and boiler system respectively.
The sludge crushing surge tank includes buffering tank body, motor, speed reducer, bearing spider and bracket, in surge tank body
Along the shaft of its location mid-shaft setting, the bottom end of shaft is connect with bearing spider, radial setting at least two on the outer wall of shaft
Layer rotating blade, every layer of rotating blade are at least symmetrical arranged one group, buffer and at least two layers of fixed blade is arranged on the inner wall of tank body,
Every layer of fixed blade is at least symmetrical arranged one group, and the bottom surface in the blade direction and buffering tank body of rotating blade and fixed blade is flat
Material toggling block is arranged close to one end of buffering inner tank wall in row, rotating blade, and charging is respectively set in the bottom for buffering the top of tank body
Mouth and discharge port, feed inlet are connected to blade dryer, and discharge port is connected to finished product warehouse.In the sludge of blade dryer discharge
Volumes etc., wherein bulk sludge is possible to blocking pipeline, thus by multilayer rotating blade in sludge crushing surge tank and
Fixed cutting tool, which cooperates, is broken into its lateral stripping and slicing the dewatered sludge block of small volume.
Wherein, material toggling block close to the inner wall for buffering tank body but does not contact, and buffering tank body is set on bracket, speed reducer and electricity
Machine connection, the big belt wheel that the bottom end setting of small pulley and bearing spider is arranged in speed reducer bottom end are connected by belt.Material toggling block energy
Under enough sludge scrapings that will be sticked in buffering inner tank wall but not damage inner wall.
The arrival end setting discharger of the sludge crushing surge tank is connected to the outlet end of blade dryer, sludge crushing
The outlet end of surge tank is connected to by returning charge conveyer with the return port of blade dryer.It will be after sludge crushing surge tank be broken
1/3 sludge lifting to blade dryer return port, its object is to will form sludge injection blade dryer make it in paddle
It is mixed in leaf drying machine with wastewater sludge and forms the bed of material in time, can effectively increase residence time of the wastewater sludge in drying machine,
Reach better drying effect.
Be connected between the sludge surge tank and blade dryer by feed pipe, on feed pipe setting sludge feed pump and
Density on-line detector is additionally provided with returning charge branch pipe on feed pipe and is connected to sludge surge tank, the outlet end of sludge surge tank and enters
Sludge circulation pipe is set between mouth end, sludge circulation pump is set on sludge circulation pipe.In order to make the wastewater sludge in surge tank
Reach homogeneous, the sludge that sludge surge tank is discharged is shunted, under the flow control of sludge circulation pump and sludge feed pump
It respectively enters feed pipe and sludge circulation pipe shunts, wherein sludge circulation pump discharge is greater than the flow of sludge feed pump, and will be dirty
A small amount of homogeneous wastewater sludge that mud is fed pump discharge is sent at the top of the surge tank；The density of setting on-line detector on feed pipe
The homogeneous situation of sludge can be measured by density fluctuation in real time, the small sludge for thinking homogeneous of density fluctuation is continuously and uniformly
It is transported in blade dryer, if wastewater sludge density fluctuation is larger, increases circulating pump and feed pump circular flow, so
Iterative cycles reconcile shale uniformly, guarantee that the sludge quality for entering blade dryer is stablized, improve heat transfer efficiency, follow simultaneously
Ring can avoid sludgd deposition in surge tank and block pipeline.
Setting spray water-circulating pipe between the bottom end and spray port of the spray scrubber, sprays and tower is arranged on water-circulating pipe
Bottoming cycle pump sprays and is additionally provided with blow down branch on water-circulating pipe, flow control valve is arranged on blow down branch.Blade dryer generates
High temperature, high humidity, tiny structure tail gas enter spray scrubber cooled down, dehumidified, dedusting and demisting, in the washing water of generation absolutely
It is most of to be returned in spray scrubber by tower bottom circulating pump by spray port forced circulation, by seldom portion under the action of flow control valve
Divide from blow down branch and drain into cesspool, washing water reduction then requires supplementation with new washing water, therefore fills into spray scrubber
Quantitative industrial washing water can keep the update of washing water.
Lime set is arranged on pipeline between the lime set tank and tail gas heat exchanger to pump.
Circulating fan and gas service pipe, gas are set gradually on air duct between the tail gas heat exchanger and tail gas collecting device
Body branch pipe is connected to blade dryer.About 150 DEG C of high temperature lime sets enter in lime set tank after blade dryer condensation, and pump through lime set
The scrubbing tower tail gas introduced into tail gas heat exchanger heating by the air-introduced machine respectively obtains about 100 DEG C of height of temperature after exchanging heat
Warm recyclegas and low-temperature condensate；About 100 DEG C of high temperature circulation gas circulating and recoverings of temperature are wet according to tail gas to blade dryer
Content variable frequency adjustment is recycled to the air quantity of blade dryer, and the valve body opened on air duct can directly arrange remainder hot gas
Enter exhaust gas processing device.
Air-introduced machine is set on pipeline between the spray scrubber and tail gas heat exchanger.
The outlet end setting threeway material toggling valve of the sludge crushing surge tank connects with returning charge conveyer and finished product warehouse respectively
It is logical.
The outlet end of the sludge surge tank and sludge feed pump, sludge surge tank outlet end and sludge circulation pump between
Diaphragm valve is respectively set, returning charge valve is respectively set between the arrival end and sludge circulation pump of sludge surge tank and on returning charge branch pipe
Body.Diaphragm valve can effectively control the flow that sludge respectively enters sludge circulation pipe and feed pipe.
The present invention having the beneficial effect that compared to the prior art
Discharge amount of exhaust gas of the invention is small: if the high temperature and humidity tail gas being evaporated from blade dryer is directly discharged into subsequent side
Method processing, will increase subsequent processes load can cause environmental pollution if there is leakage in pipe conveying procedure；And this hair
The high temperature and humidity tail gas being evaporated in bright middle blade dryer is cooled down in scrubbing tower, is dried, after dedusting, by high temperature lime set
It is heated into after about 100 DEG C of high humidity tail gas and evaporates as blade dryer the hot carrier gas of wet part, only a little partial tail gas is discharged to
Subsequent exhaust gas purification system.
Wastewater displacement of the invention is small: the washed water spray cooling of the high temperature and humidity tail gas being evaporated from blade dryer
It dries, most of vapor is condensed into water in tail gas, and washing water circulated sprinkling needs the only spray washing tower bottom of emission treatment
The a small amount of sewage periodically discharged.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of sludge crushing surge tank in the present invention；
Fig. 3 is the top view of Fig. 2；
Appended drawing reference meaning is as follows: 1, sludge surge tank；2, blade dryer；3, sludge crushing surge tank；4, lime set tank；5, it sprays
Drench scrubbing tower；6, finished product warehouse；7, tail gas heat exchanger；8, tail gas collecting device；9, boiler system；10, tank body is buffered；11, electric
Machine；12, speed reducer；13, bearing spider；14, bracket；15, shaft；16, rotating blade；17, fixed blade；18, material toggling block；
19, feed inlet；20, discharge port；21, discharger；22, returning charge conveyer；23, feed pipe；24, sludge feed pump；25, density exists
Line detector；26, returning charge branch pipe；27, sludge circulation pipe；28, sludge circulation pump；29, spray port；30, water-circulating pipe is sprayed；
31, tower bottom circulating pump；32, blow down branch；33, flow control valve；34, lime set pumps；35, circulating fan；36, gas service pipe；36,
Air-introduced machine；37, threeway material toggling valve；38, diaphragm valve；39, returning charge valve body；40, small pulley；41, big belt wheel；42, belt；43, defeated
Send pump；44, cesspool.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of drying device of power plant desulfurization denitration wastewater sludge, including sludge surge tank 1 and and sludge
Surge tank 1 be connected to blade dryer 2, the outlet end of the blade dryer 2 respectively with sludge crushing surge tank 3, lime set tank 4
It is connected to spray scrubber 5, the outlet end of sludge crushing surge tank 3 is connected to finished product warehouse 6, lime set tank 4 and spray scrubber 5
It is connected to respectively with tail gas heat exchanger 7, the outlet end of tail gas heat exchanger 7 is connected to tail gas collecting device 8 and boiler system 9 respectively.
As Figure 2-3, the sludge crushing surge tank 3 includes buffering tank body 10, motor 11, speed reducer 12, bearing branch
Seat 13 and bracket 14, the interior shaft 15 along the setting of its location mid-shaft of buffering tank body 10, the bottom end of shaft 15 and bearing spider 13 connect
It connecing, radial setting at least two layers of rotating blade 16 on the outer wall of shaft 15, every layer of rotating blade 16 is at least symmetrical arranged one group,
It buffers and at least two layers of fixed blade 17 is set on the inner wall of tank body 10, every layer of fixed blade 17 is at least symmetrical arranged one group, rotation
The blade direction of blade 16 and fixed blade 17 is parallel with the buffering bottom surface of tank body 10, and rotating blade 16 is in buffering tank body 10
Material toggling block 18 is arranged in one end of wall, and feed inlet 19 and discharge port 20, feed inlet is respectively set in the bottom for buffering the top of tank body 10
19 are connected to blade dryer 2, and discharge port 20 is connected to finished product warehouse 6.
Wherein, material toggling block 18 close to the inner wall for buffering tank body 10 but does not contact, and buffering tank body 10 is set on bracket 14, subtracts
Fast machine 12 is connect with motor 11, and the big belt wheel 41 that the bottom end setting of small pulley 40 and bearing spider 13 is arranged in 12 bottom end of speed reducer is logical
Cross the connection of belt 42.
The arrival end setting discharger 21 of the sludge crushing surge tank 3 is connected to the outlet end of blade dryer 2, sludge
The outlet end of broken surge tank 3 is connected to by returning charge conveyer 22 with the return port of blade dryer 2.
It is connected between the sludge surge tank 1 and blade dryer 2 by feed pipe 23, sludge is set on feed pipe 23 and is given
Material pumps 24 and density on-line detector 25, is additionally provided with returning charge branch pipe 26 on feed pipe 23 and is connected to sludge surge tank 1, sludge buffering
Sludge circulation pipe 27 is set between the outlet end and arrival end of tank 1, sludge circulation pump 28 is set on sludge circulation pipe 27.
Setting spray water-circulating pipe 30, sprays water-circulating pipe 30 between the bottom end and spray port 29 of the spray scrubber 5
Upper setting tower bottom circulating pump 31 sprays and is additionally provided with blow down branch 32 on water-circulating pipe 30, and setting flow is adjusted on blow down branch 32
Valve 33.
Lime set is set on the pipeline between the lime set tank 4 and tail gas heat exchanger 7 and pumps 34.
Circulating fan 35 and gas branch are set gradually on air duct between the tail gas heat exchanger 7 and tail gas collecting device 8
Pipe 36, gas service pipe 36 are connected to blade dryer 2.
Air-introduced machine 36 is set on the pipeline between the spray scrubber 5 and tail gas heat exchanger 7.
The outlet end setting threeway material toggling valve 37 of the sludge crushing surge tank 3 is stored up with returning charge conveyer 22 and finished product respectively
Storehouse 6 is connected to.
The outlet end of the sludge surge tank 1 and sludge feed pump 24, the outlet end of sludge surge tank 1 and sludge circulation pump
Diaphragm valve 38 is respectively set between 28, divides between the arrival end and sludge circulation pump 28 of sludge surge tank 1 and on returning charge branch pipe 26
It She Zhi not returning charge valve body 39.
In use, the desulphurization denitration wastewater sludge conveying for the solid content about 50% for being evaporated Multi-effect concentration by delivery pump 43
To sludge surge tank 1, start sludge feed pump 24 and sludge circulation pump 28, and adjusting flow by diaphragm valve 38 follows sludge
The flow of ring pump 28 is greater than sludge feed pump 24, so that the wastewater sludge in surge tank be made to reach homogeneous, and starts density simultaneously
On-line detector 25 carries out real-time monitoring to the sludge homogeneous situation in feed pipe 23, if density fluctuation is small to think homogeneous,
The returning charge valve body 39 on returning charge branch pipe 26 is closed, is transported to sludge continuously and uniformly in blade dryer 2, if waste water is dirty
Mud density fluctuation is larger, then increases the circular flow of sludge feed pump 24 and sludge circulation pump 28, by iterative cycles, by shale
It reconciles uniformly, the sludge quality that guarantee enters blade dryer 2 is stablized, and improves heat transfer efficiency, while it is slow to recycle avoidable sludge
It rushes sludgd deposition in tank 1 and blocks pipeline.
Meanwhile entering saturated vapor in the hollow hot axis, blade and collet of blade dryer 2 by pipeline distribution, with
Wet mud in blade dryer 2 carries out heat exchange, evaporates wet part in wet mud, and temperature is 80-90 after remembering drying
DEG C, moisture content be 25-30% molding sludge, molding sludge i.e. drawn off by the discharger 21 of 2 discharge outlet of blade dryer after by
Feed inlet 19 enters in sludge crushing surge tank 3, and starting motor 11 drives speed reducer 12 to rotate, and the rotation of big belt wheel 41 is small to make
Belt wheel 40 rotates under the drive of belt 42, so that shaft 15 and rotating blade 16 is linked, due to rotating blade 16 and fixed blade
17 are staggered, and when rotating blade 16 rotates, rotating blade 16 is not only able to directly carry out the molding sludge longitudinally fallen
Cutting, moreover it is possible to and fixed blade 17 cooperatively forms multiple transverse cuts regions and breaks to further carry out cutting to molding sludge
It is broken, so that the volume of the molding sludge of large volume is reduced to dewatered sludge block, with original volume with regard to smaller dewatered sludge block one
Rise and fall at discharge port 20, and shunted through threeway material toggling valve 37, wherein about 1/3 be transported to returning charge conveyer 22 after return
Expect to the return port of blade dryer 2, it is other then be transported to finished product warehouse 6.
High temperature, high humidity, the tiny structure tail gas of the generation of blade dryer 2 enter spray scrubber 5 and are cooled down, dehumidified, removed
Dirt and demisting；Tail gas after the cooling of spray scrubber 5, dehumidifying, dedusting and demisting introduces tail gas heat exchanger 7 through air-introduced machine 36；
To the washing water after dry tail gas cooling, dehumidifying and dedusting, the overwhelming majority forces to be recycled by spray port 29 through tower bottom circulating pump 31
Into in spray scrubber 5, seldom part quantitatively adjusts through flow control valve 33 and is discharged to cesspool 44, and root along blow down branch 32
Quantitative industrial washing water is filled into spray scrubber 5 according to reduced liquid level.
After blade dryer 2 condenses about 150 DEG C of high temperature lime sets generating respectively by the collet delivery outlet of blade dryer 2 and
Central axis delivery outlet escapes and enter in lime set tank 4, and lime set pump 34, which is conveyed into tail gas heat exchanger 7, to be heated, with air-introduced machine
After 36 5 tail gas of the spray scrubber heat exchange introduced, temperature about 100 DEG C of high temperature circulation gases and low-temperature condensates are obtained, gas is opened
Valve body on body branch pipe 36 makes 100 DEG C of high temperature circulation gas circulating and recoverings to blade dryer 2, by circulating fan 35 by tail gas
Moisture content variable frequency adjustment is recycled to the air quantity of blade dryer 2, and the valve body opened on air duct arranges remainder hot gas directly
Enter tail gas collecting device 8, low-temperature condensate enters 9 circulating and recovering of steam boiler system.
Claims (10)
1. a kind of drying device of power plant desulfurization denitration wastewater sludge, it is characterised in that: including sludge surge tank (1) and and sludge
Surge tank (1) connection blade dryer (2), the outlet end of the blade dryer (2) respectively with sludge crushing surge tank
(3), lime set tank (4) is connected to spray scrubber (5), and the outlet end of sludge crushing surge tank (3) is connected to finished product warehouse (6),
Lime set tank (4) and spray scrubber (5) are connected to tail gas heat exchanger (7) respectively, the outlet end of tail gas heat exchanger (7) respectively with tail
Gas collection device (8) is connected to boiler system (9).
2. the drying device of power plant desulfurization denitration wastewater sludge as described in claim 1, it is characterised in that: the sludge crushing
Surge tank (3) includes buffering tank body (10), motor (11), speed reducer (12), bearing spider (13) and bracket (14), buffers tank body
(10) along the shaft (15) of its location mid-shaft setting in, the bottom end of shaft (15) is connect with bearing spider (13), shaft (15)
Radial setting at least two layers of rotating blade (16) on outer wall, every layer of rotating blade (16) are at least symmetrical arranged one group, surge tank
At least two layers of fixed blade (17) is set on the inner wall of body (10), and every layer of fixed blade (17) is at least symmetrical arranged one group, rotation
The blade direction of blade (16) and fixed blade (17) is parallel with the buffering bottom surface of tank body (10), and rotating blade (16) is close to buffering
Material toggling block (18) are arranged in one end of tank body (10) inner wall, buffer the top of tank body (10) bottom be respectively set feed inlet (19) and
Discharge port (20), feed inlet (19) are connected to blade dryer (2), and discharge port (20) is connected to finished product warehouse (6).
3. the drying device of power plant desulfurization denitration wastewater sludge as claimed in claim 1 or 2, it is characterised in that: the sludge
Arrival end setting discharger (21) of broken surge tank (3) is connected to the outlet end of blade dryer (2), sludge crushing surge tank
(3) outlet end is connected to by returning charge conveyer (22) with the return port of blade dryer (2).
4. the drying device of power plant desulfurization denitration wastewater sludge as claimed in claim 3, it is characterised in that: the sludge buffering
It is connected between tank (1) and blade dryer (2) by feed pipe (23), setting is sludge feed pump (24) and close on feed pipe (23)
It spends on-line detector (25), is additionally provided with returning charge branch pipe (26) on feed pipe (23) and is connected to sludge surge tank (1), sludge surge tank
(1) sludge circulation pipe (27) are set between outlet end and arrival end, sludge circulation pump (28) are set on sludge circulation pipe (27).
5. the drying device of power plant desulfurization denitration wastewater sludge as claimed in claim 4, it is characterised in that: the spray washing
Setting spray water-circulating pipe (30) between the bottom end and spray port (29) of tower (5) sprays setting tower bottom on water-circulating pipe (30) and follows
Ring pumps (31), is additionally provided with blow down branch (32) on spray water-circulating pipe (30), flow control valve is arranged on (32) in blow down branch
(33).
6. the drying device of power plant desulfurization denitration wastewater sludge as claimed in claim 5, it is characterised in that: the lime set tank
(4) lime set is set on the pipeline between tail gas heat exchanger (7) and pumps (34).
7. the drying device of power plant desulfurization denitration wastewater sludge as claimed in claim 6, it is characterised in that: the tail gas heat exchange
Circulating fan (35) and gas service pipe (36), gas service pipe are set gradually on air duct between device (7) and tail gas collecting device (8)
(36) it is connected to blade dryer (2).
8. the drying device of power plant desulfurization denitration wastewater sludge as claimed in claim 7, it is characterised in that: the spray washing
Air-introduced machine (36) are set on pipeline between tower (5) and tail gas heat exchanger (7).
9. the drying device of power plant desulfurization denitration wastewater sludge as claimed in claim 8, it is characterised in that: the sludge crushing
Outlet end setting threeway material toggling valve (37) of surge tank (3) is connected to returning charge conveyer (22) and finished product warehouse (6) respectively.
10. the drying device of power plant desulfurization denitration wastewater sludge as claimed in claim 9, it is characterised in that: the sludge is slow
It rushes the outlet end and sludge feed pump (24) of tank (1), distinguish between the outlet end of sludge surge tank (1) and sludge circulation pump (28)
It is arranged diaphragm valve (38), distinguishes between the arrival end and sludge circulation pump (28) of sludge surge tank (1) and on returning charge branch pipe (26)
It is arranged returning charge valve body (39).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047607A (en) * | 2020-09-08 | 2020-12-08 | 江苏华俊环保科技有限公司 | Closed paddle stirring sludge drying system |
| CN112624547A (en) * | 2020-12-23 | 2021-04-09 | 江苏省环境科学研究院 | Sludge oxidation treatment system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120084226A (en) * | 2011-01-19 | 2012-07-27 | 에이치투더블유티이 주식회사 | Treating system of waste materials |
| CN102873774A (en) * | 2012-04-10 | 2013-01-16 | 沈阳连城精密机器有限公司 | Online mortar recovery method in silicon industry |
| CN103408213A (en) * | 2013-08-02 | 2013-11-27 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving off-gas self-lazy circular sludge drying system and application method thereof |
| CN203669849U (en) * | 2013-12-05 | 2014-06-25 | 黎跃东 | Device for recovering oil-base mud in oil-base drilling oily waste |
| CN104140187A (en) * | 2014-07-18 | 2014-11-12 | 天华化工机械及自动化研究设计院有限公司 | Drying method for sludge steam pipe rotary drying machine |
| CN206109176U (en) * | 2016-10-14 | 2017-04-19 | 南阳市天华制药有限公司 | Take waste gas filtering device's chemical sludge drying equipment |
| CN209923176U (en) * | 2019-04-09 | 2020-01-10 | 兰州天昊环保工程有限公司 | Drying device for desulfurization and denitrification wastewater and sludge of power plant |
-
2019
- 2019-04-09 CN CN201910280881.XA patent/CN109809670A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120084226A (en) * | 2011-01-19 | 2012-07-27 | 에이치투더블유티이 주식회사 | Treating system of waste materials |
| CN102873774A (en) * | 2012-04-10 | 2013-01-16 | 沈阳连城精密机器有限公司 | Online mortar recovery method in silicon industry |
| CN103408213A (en) * | 2013-08-02 | 2013-11-27 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving off-gas self-lazy circular sludge drying system and application method thereof |
| CN203669849U (en) * | 2013-12-05 | 2014-06-25 | 黎跃东 | Device for recovering oil-base mud in oil-base drilling oily waste |
| CN104140187A (en) * | 2014-07-18 | 2014-11-12 | 天华化工机械及自动化研究设计院有限公司 | Drying method for sludge steam pipe rotary drying machine |
| CN206109176U (en) * | 2016-10-14 | 2017-04-19 | 南阳市天华制药有限公司 | Take waste gas filtering device's chemical sludge drying equipment |
| CN209923176U (en) * | 2019-04-09 | 2020-01-10 | 兰州天昊环保工程有限公司 | Drying device for desulfurization and denitrification wastewater and sludge of power plant |
Non-Patent Citations (1)
| Title |
|---|
| 陈家庆: "《环保设备原理与设计》", 30 September 2005, 中国石化出版社, pages: 399 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047607A (en) * | 2020-09-08 | 2020-12-08 | 江苏华俊环保科技有限公司 | Closed paddle stirring sludge drying system |
| CN112624547A (en) * | 2020-12-23 | 2021-04-09 | 江苏省环境科学研究院 | Sludge oxidation treatment system and method |
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