CN105366900B - A kind of sludge treatment device of dewatering improvement - Google Patents
A kind of sludge treatment device of dewatering improvement Download PDFInfo
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- CN105366900B CN105366900B CN201510935553.0A CN201510935553A CN105366900B CN 105366900 B CN105366900 B CN 105366900B CN 201510935553 A CN201510935553 A CN 201510935553A CN 105366900 B CN105366900 B CN 105366900B
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- 239000010802 sludge Substances 0.000 title claims abstract description 195
- 230000006872 improvement Effects 0.000 title claims abstract description 12
- 230000003750 conditioning effect Effects 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 53
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 239000002994 raw material Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000010865 sewage Substances 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 27
- 230000001953 sensory effect Effects 0.000 claims description 26
- 238000009423 ventilation Methods 0.000 claims description 16
- 230000006837 decompression Effects 0.000 claims description 13
- 230000003647 oxidation Effects 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 10
- 238000012806 monitoring device Methods 0.000 claims description 9
- 229920000867 polyelectrolyte Polymers 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 6
- 229920000193 polymethacrylate Polymers 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 5
- 230000001737 promoting effect Effects 0.000 claims description 5
- 241000270295 Serpentes Species 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 125000002091 cationic group Chemical group 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims 1
- 235000021050 feed intake Nutrition 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 34
- 239000007787 solid Substances 0.000 abstract description 15
- 239000000243 solution Substances 0.000 description 24
- 241000605118 Thiobacillus Species 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 14
- 239000008187 granular material Substances 0.000 description 14
- 230000018044 dehydration Effects 0.000 description 13
- 238000006297 dehydration reaction Methods 0.000 description 13
- 239000011148 porous material Substances 0.000 description 12
- 238000001035 drying Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 230000001662 opsonic effect Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000011800 void material Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000019771 cognition Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F11/02—Biological treatment
-
- 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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
A kind of sludge treatment device of dewatering improvement, the sludge heavy-metal biochemical treatment tank body being successively successively passed through including sludge, sludge dewatering conditioning tank body and the dry tank body of a sludge dewatering；The sludge dewatering conditioning tank body includes that one second tank body and one are set to the second drainage hood of second tank interior, one is provided on second tank body for the second blow vent that the second charging aperture by sludge raw material, second feeding port and one for launching conditioning material are connected with a Blast mechanism, second blow vent is located at the bottom of second tank body.The present invention can make sludge raw material and three kinds of conditioning material obtain sufficient gas-solid contact effect, so as to reduce the yield stress and appearance viscosity of sludge, help to improve sludge dewatering effect.
Description
Technical field
The present invention relates to a kind of sludge treatment devices, refer in particular to a kind of sludge treatment device of dewatering improvement.
Background technique
In recent years, it with wastewater treatment in China ability and the rapid growth of handling rate, brings excess sludge and largely generates
The phenomenon that.Whole nation urban sewage treatment plant sludge only has fraction to carry out sanitary landfills, land use, burning and building materials benefit at present
With etc., most of processing disposition not standardized.
Contain a large amount of larger particles during sewage treatment, in some sewage and is difficult to the suspended matter precipitated, certain
A little particles and suspended matter are difficult to again through biochemical degradation, would generally be carried out dehydrating at this time to sewage, the shape after dehydration
At filter residue, filter residue can be used as filler recovery utilization.
Such as in Authorization Notice No. CN204434447U, entitled " a kind of follow-on sludge vacuum dehydration device "
Disclosed in state's patent of invention, a kind of follow-on sludge vacuum dehydration device, including enclosed dirt are described in that patent
Water surge tank, the sewage surge tank are connected with a dehydrating tube, a vacuum tube and several for being inserted into sludge water
Connecting tube, the other end of the vacuum tube is connected with one for the vacuum pump that vacuumizes, and the other end of the connecting tube is detachable
Ground is socketed with a sewage permeation connector, and the sewage permeation connector is for stopping sludge to enter the connecting tube, the vacuum in company with water flow
Pipe is interconnected with connecting tube by the sewage surge tank；One end of the dehydrating tube be arranged in sewage surge tank bottom,
And it is connected with a water pump, the outside on sewage surge tank top is arranged in the other end, and a water level control is additionally provided on the dehydrating tube
Device；The top of the sewage surge tank is additionally provided with a limit switch, which is used to control the unlatching of the vacuum pump
Or it closes.
In that patent, by negative-pressure vacuum, the moisture in sludge is separated by sewage permeation connector and sludge, and takes out
It is sent in sewage surge tank, completes the dehydration of sludge, however that there is sewage dehydration rates is low, dehydration efficiency is lower for the device
And filter residue not easy to handle utilization the characteristics of.
Summary of the invention
The present invention provides a kind of sludge treatment device of dewatering improvement, and main purpose is to overcome at existing sludge
Sewage dehydration rate existing for reason equipment is low, dehydration efficiency is lower and the not easy to handle defect utilized of filter residue.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of sludge treatment device of dewatering improvement, the sludge heavy-metal being successively successively passed through including sludge are biochemical
Handle tank body, sludge dewatering conditioning tank body and the dry tank body of a sludge dewatering；The sludge dewatering conditioning tank body includes one
Second tank body and one be set to second tank interior the second drainage hood, be provided with one for passing through on second tank body
The second charging aperture of sludge raw material, one are for launching the second feeding port that conditioning is expected and one is also connected with Blast mechanism the
Two blow vents, second blow vent are located at the bottom of second tank body, second drainage hood include one second upper opening,
One is located at the second under shed right above second blow vent and one extends to the second upper opening and shape by the second under shed
At the second drainage channel, the second charging aperture is connected to one first blow vent.
Further, the sludge dewatering conditioning tank body further includes a second pressure sensing group for being set to the second tank body top
Part and one second relief valve that is electrically connected with the second pressure sensory package, second relief valve is for controlling the second tank
The discharge and closing of internal portion ullage air.
Further, the sludge heavy-metal biochemical treatment tank body is set in first tank body including one first tank body, one
First drainage hood and a Blast mechanism in portion are provided with one on first tank body for launching the sludge raw material containing heavy metal
First charging aperture, a nutrient solution for launching oxidation-containing sulfur bacillus the first feeding port and one be connected with Blast mechanism
The first blow vent, first blow vent is located at the bottom of first tank body, and first drainage hood includes on one first
The first under shed and one of opening, one right above first blow vent extend to the first upper opening by the first under shed
And the first drainage channel formed.
Further, the dry tank body of the sludge dewatering includes the upper tank body of lower ending opening and the lower tank of upper end opening, on
The lower end of tank body and the upper end of lower tank are removably joined together, and are connected on upper tank body and are connected to the inner cavity of upper tank body
Pressurizing device, be additionally provided on upper tank body to by sludge solutions be sent into upper tank body mud inlet, in lower tank be equipped with to
Sludge solutions are carried out with the filter layer of grain slag separation, has the first pressure modulating opening on lower tank, filter layer is arranged in the first pressure modulating opening
Lower section, further includes vacuum tank, and vacuum tank is equipped with the second pressure modulating opening, the first pressure modulating opening and the second pressure modulating opening and is connected by connecting tube
It is logical, it is connected with vacuum evacuation device on vacuum tank, the first discharge outlet is equipped on lower tank, the first discharge outlet passes through the first drainpipe
It is connected to sewage plash, the lower section of the first pressure modulating opening is arranged in the first discharge outlet, the second discharge outlet is equipped on vacuum tank, the
The lower section of the second pressure modulating opening is arranged in two discharge outlet, and the second discharge outlet is connected to sewage plash by the second drainpipe, described
Lower tank is additionally provided with a microwave heating equipment and third pressure modulating opening above filter layer, and the microwave heating equipment includes multiple
Several microwave launchers and the metallic shield ring being coated on the outside of the microwave launcher, metallic shield ring outside installation
In the lower tank inner wall, the lower tank is provided with the metal for coating entire third pressure modulating opening at third pressure modulating opening position
Gauze screen, the vacuum tank are equipped with the 4th pressure modulating opening, and the third pressure modulating opening is connected to the 4th pressure modulating opening by connecting tube, institute
The lower end for stating upper tank body is connected with upper flange, and the upper end of the lower tank is connected with lower flange, and upper flange and lower flange pass through company
Fitting is removably joined together, and silicone gasket is equipped between upper flange and lower flange.
Further, the inner wall of the lower tank is equipped with circumferential support platform, and the filter layer includes that sieve tray and setting are being sieved
Strainer on orifice plate, sieve tray are erected on circumferential support platform.
Further, a pressure monitoring device to monitor upper tank body chamber pressure, institute are additionally provided in the upper tank body
Stating pressure monitoring device includes the first pressure gauge to show positive pressure and the second pressure gauge to show negative pressure.
Further, the first charging aperture and the first feeding port are respectively set to the two sides of first tank body upper end, described
First tank body is a Heat Conduction Material tank body, and first tank body is additionally provided with a heating part, which surround for one and be set to
The snake pipe of the first tank body lateral wall, the thermostat which is contained with heating fluid with one are connected, institute
State heavy metal biochemical treatment tank body further include a first pressure sensory package for being set to the first tank body top and one with this
One first relief valve of one pressure sensor module electrical connection, first relief valve is for controlling the first tank interior ullage
The discharge and closing of air.
Further, the mesh of the metallic shield net is smaller than presetting the microwave wavelength that the microwave launcher generates.
Further, it is provided with a plurality of spaced apart conduction holes on second drainage hood, is set above the conduction hole
It is equipped with the drainage cap protruded outwardly.
Further, it includes that the three kinds of conditionings successively sequentially added are expected that conditioning material is launched into second feeding port, and first
The conditioning material of secondary addition flies for thermal power plant ash, and second of conditioning material being added is ferric chloride solution or the poly- electrolysis of cationic
Matter, the conditioning material that last time is added are polymethacrylates system both sexes co-polymer.
Compared to the prior art, the beneficial effect that the present invention generates is:
1, the configuration of the present invention is simple, practical improves tank body by one sludge dewatering of setting, after conditioning material is added,
The forced air generated by Blast mechanism generates bubble by the bottom of the second tank body, and by opening under the second of the second drainage hood
In mouth the second drainage channel of injection, and is flowed out and settled by the second upper opening of the second drainage hood under the action of air-flow and flowed back into
In second tank body, the intracorporal sludge raw material of the second slot and three kinds of conditionings material are flowed back into again by airflow function from the second drainage hood
Second under shed is inhaled into, is promoted into the second drainage hood, so that the iterative cycles between the second tank body and the second drainage hood, make
It obtains sludge raw material and three kinds of conditionings material obtains sufficient gas-solid contact effects, sticked so as to reduce yield stress and the appearance of sludge
Degree, helps to improve sludge dewatering effect.
2, in the present invention, the conditioning material of addition not only includes that thermal power plant ash flies this physics conditioning material, further includes
Ferric chloride solution and polymethacrylates system both sexes co-polymer both chemical conditioning material.Addition thermal power plant ash flies to help
Filter can be reduced the dosage of high molecular polymer, and promote the dehydration of sludge when cooperation high molecular polymer carries out multiple conditioning
Efficiency increases the solid content of sludge cake.Additionally by two kinds of chemical conditioning material of setting, and using between two kinds of chemical conditioning material
Reciprocation, cause misfit form, reach better flocculating effect, increase the adhesion between mud granule, formed it is bigger and
Stronger glue plumage reduces polyelectrolyte and remains in solution, while improving the dehydration property of sludge.
3, in the present invention, by setting second pressure sensory package and the second relief valve, and cooperate Blast mechanism
Ventilation effect, can form another pressures cycle processing system, can be with after the ventilation of the second tank body internal cause causes air pressure to increase
Increase the infiltration of Interstitial Water and three kinds of conditioning material to sludge internal void, reinforces the contact frequency of three kinds of conditionings material and sludge, mention
The effect of its high opsonic reaction, after pressure increases to 700kPa in the second tank body, second pressure sensory package detects the pressure
After the threshold value of power highest point, touches Blast mechanism and stop ventilating into the second tank body, and start the second relief valve simultaneously, above-mentioned second
Relief valve controls the second tank exhaust, and the pressure of the second tank interior is reduced to atmospheric pressure, second tank body by 700kPa
Top a large amount of microbubble is generated because of exhaust, the gas in Interstitial Water can release and take the product after opsonic reaction out of
Sludge hole.Since the hole of sludge is too small, the rate that gas releases when decompression is commonly greater than the speed that gas is discharged from hole
Rate, therefore cause sludge pore interior pressure increase.When sludge pore interior pressure is greater than the pressure that mud granule wall can bear
When power, mud granule will be caused to implode or burst, increase the exposed amount of polyelectrolyte and organic matter in sludge, greatly
Ground improves the gas-solid contact effect of itself and three kinds of conditioning material, enhances its physical and chemical reaction, so as to reduce subduing for sludge
Stress and appearance viscosity, help to improve sludge dewatering effect, when the intracorporal pressure recovery of the second tank is to general atmosphere pressure,
After second pressure sensory package detects the pressure minimum point threshold value, touches Blast mechanism and ventilate again into the second tank body, and
The second relief valve is simultaneously closed off, atmospheric pressure will be depressurized to again after the second tank interior boost in pressure to 700kPa again, constantly
The circulation for completing pressurization and decompression, until sludge completes whole dehydrating and conditioning.
4, in the present invention, by the dry tank body of one sludge dewatering of setting, when in use by sewage solution from mud inlet
It is transported in upper tank body, later closes mud inlet, start pressurizing device and vacuum evacuation device, upper tank body when passing through pressurizing device
Interior pressure enhancing makes the pressure reduction in lower tank to vacuum state by vacuum tank, such upper tank body and lower tank it
Between form biggish pressure difference, the moisture in sewage solution in upper tank body can run through filter layer, and body refuse is then
The top for staying in filter layer, when going back residual moisture in body refuse, since the water seal of moisture acts on, energy between upper tank body and lower tank
Enough form pressure difference, guarantee quickly to carry out grain slag separation, after the moisture removal in body refuse finishes, upper tank body and lower tank it
Between connection realized by the stomata in body refuse, the pressure of upper tank body reduces rapidly, and may determine that sludge by pressure monitoring device
It is processed to finish, by dismantling lower tank, and body refuse is cleaned out, body refuse can be used in building filler or compound fertilizer etc.
Field is recycled.In the present invention, the moisture to get off is permeated from filter layer mainly pass through the first discharge outlet drain into dirt
Water plash, and the vapor in lower tank can enter vacuum tank by connecting tube and drained into from the second discharge outlet sewage into
Pond, to ensure that moisture can sufficiently be discharged.
5, in the present invention, by the way that microwave heating equipment is arranged in lower tank, and microwave heating equipment can discharge
Locate microwave, so that the hydrone in sludge is interacted with the microwave and is heated, so that moisture contained by sludge
It can spread and volatilize, achieve the purpose that dry sludge.
6, in the present invention, by the 4th pressure modulating opening on vacuum tank and the third pressure modulating opening near microwave heating equipment it
Between pumping cooperation, cause to form a negative pressure inside microwave heating equipment, and then generate an air-flow, the top of this air-flow lower tank
Air inlet, and pass through vacuum tank, the water vapour of microwave heating process generation is taken away, vapor can be delivered to vacuum by connecting tube
In tank, and it is condensed into liquid water in vacuum tank, and be delivered in sewage plash by the second drainpipe, under capable of so guaranteeing
Moisture in tank body is more adequately emitted into sewage plash.
7, in the present invention, by setting metallic shield ring and metallic shield net, microwave can be made to fill in microwave heating
Interior repeatable reflection is set, the microwave generated in drying process is avoided to leak.Sludge can also be enable to be heated properly drying simultaneously,
Further increase the drying effect of sludge.
8, in the present invention, by setting first pressure sensory package and the first relief valve, and cooperate Blast mechanism
Ventilation effect, can form a pressures cycle processing system, after the ventilation of the first tank body internal cause causes air pressure to increase, can increase
The infiltration of Interstitial Water and thiobacillus thiooxidant to sludge internal void, the contact frequency of oxidation reinforced Thiobacillus and sludge improve it
The ability of heavy metal in sludge is absorbed, after pressure increases to 700kPa in the first tank body, first pressure sensory package is detected
After the pressure highest point threshold value, touches Blast mechanism and stop ventilating into the first tank body, and start the first relief valve simultaneously, it is above-mentioned
First relief valve controls the first tank exhaust, and the pressure of the first tank interior is reduced to atmospheric pressure by 700kPa, and described first
The top of tank body generates a large amount of microbubble because of exhaust, and the gas in Interstitial Water can release and by the life after heavy metal and reaction
Sludge hole is taken out of at object.Since the hole of sludge is too small, the rate that gas releases when decompression is commonly greater than gas from hole
The rate of discharge, therefore cause sludge pore interior pressure increase.When sludge pore interior pressure is greater than mud granule wall institute energy
When the pressure of receiving, mud granule will be caused to implode or burst, increase the exposed amount of heavy metal in sludge, greatly
The gas-solid contact effect for improving heavy metal and thiobacillus thiooxidant, enhances its biochemical reaction, greatly improves Heavy Metals in Sludge
Removal effect, when the intracorporal pressure recovery of the first tank is to general atmosphere pressure, first pressure sensory package detects the pressure
It after power minimum point threshold value, touches Blast mechanism and ventilates again into the first tank body, and simultaneously close off the first relief valve, again by the
It is depressurized to atmospheric pressure again after one tank interior boost in pressure to 700kPa, the circulation of pressurization and decompression is constantly completed, until dirt
The removal of mud completion heavy metal.
It 9, can be by air-flow by the bottom of the first tank body in the present invention, by the way that a heavy metal biochemical treatment tank body is arranged
Portion is passed through, and air-flow is flowed from the first under shed of the first drainage hood into the first drainage hood, is formed in the first drainage hood and is not advised
Vortex and negative pressure then, sludge, thiobacillus thiooxidant and culture solution are inhaled into from the bottom of drainage hood, are promoted into the first drainage hood
It is sufficiently mixed, and is flowed out and settled by the first upper opening of the first drainage hood under the action of air-flow and flowed back into the first tank body,
The intracorporal sludge of the first tank, thiobacillus thiooxidant and culture solution is flowed back into be inhaled by airflow function from the bottom of the first drainage hood again
Enter, promoted into the first drainage hood, thus the iterative cycles between the first tank body and the first drainage hood, so that the heavy metal of sludge
Obtain sufficient gas-solid contact effect with thiobacillus thiooxidant so that heavy metal by thiobacillus thiooxidant oxidation and acidification from dirt
It is dissolved out in mud, eliminates the content of heavy metal in sludge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sludge treatment device described in embodiment.
Fig. 2 is the enlarged diagram in Fig. 1 at A.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings.
Referring to Figures 1 and 2.A kind of sludge treatment device, the sludge heavy-metal being successively successively passed through including sludge 9 are biochemical
Handle tank body 1, sludge dewatering conditioning tank body 2 and the dry tank body 3 of a sludge dewatering.
Referring to Figures 1 and 2.The sludge heavy-metal biochemical treatment tank body 1 include one first tank body 10, one be set to this
The first drainage hood 11 and a Blast mechanism 4 inside one tank body 10, be provided on first tank body 10 one for launch contain
The first charging aperture 101, one of the sludge raw material of heavy metal is used to launch the first feeding port 102 of the nutrient solution of oxidation-containing sulfur bacillus
And first blow vent 103 that is connected with Blast mechanism 4, first blow vent 103 are located at first tank body 10
Bottom, first drainage hood 11 include opening under first of one first upper opening, one right above first blow vent 103
Mouthful and one first upper opening is extended to by the first under shed and the first drainage channel for being formed.101 He of first charging aperture
First feeding port 102 is respectively set to the two sides of 10 upper end of the first tank body, and first tank body 10 is a Heat Conduction Material tank body,
First tank body 10 is additionally provided with a heating part, which is one around the snake for being set to 10 lateral wall of the first tank body
Shape pipeline 108, the thermostat which is contained with heating fluid with one are connected, the heavy metal biochemical treatment
Tank body 1 further include a first pressure sensory package 17 for being set to 10 top of the first tank body and one with the first pressure sensing group
One first relief valve 18 that part 17 is electrically connected, first relief valve 18 is for controlling 10 internal liquid level upper air of the first tank body
Discharge and closing.
Referring to Figures 1 and 2.Sludge dewatering conditioning tank body 2 include one second tank body 20 and one be set to this second
The second drainage hood 21 inside tank body 20 is provided with one on second tank body 20 for by the second charging aperture of sludge raw material
22, one for launching the second feeding port 23 that conditioning is expected and the second blow vent 24 that one is also connected with Blast mechanism 4, described
Second blow vent 24 is located at the bottom of second tank body 20, and second drainage hood 21 is located at including one second upper opening, one
The second under shed and one right above second blow vent 24 are extended to the second upper opening by the second under shed and are formed
Second drainage channel, the second charging aperture 22 are connected to first blow vent 103.The sludge dewatering conditioning tank body 2 is also
The second pressure sensory package 27 for being set to 20 top of the second tank body including one and one with 27 electricity of the second pressure sensory package
One second relief valve 28 of connection, second relief valve 28 are used to control the discharge of 20 internal liquid level upper air of the second tank body
With closing.It is provided with a plurality of spaced apart conduction holes 210 on second drainage hood 21, is set above the conduction hole 210
It is equipped with the drainage cap 211 protruded outwardly.It includes three kinds successively sequentially added that conditioning material is launched into second feeding port 23
Conditioning material, the conditioning material being added for the first time fly for thermal power plant ash, and second of conditioning material being added is ferric chloride solution or sun
Ionic polyelectrolyte, the conditioning material that last time is added are polymethacrylates system both sexes co-polymer.
Referring to Figures 1 and 2.The dry tank body 3 of the sludge dewatering includes the upper tank body 30 and upper end opening of lower ending opening
Lower tank 31, the lower end of upper tank body 30 and the upper end of lower tank 31 are removably joined together, be connected on upper tank body 30 with
The pressurizing device 32 of the inner cavity connection of upper tank body 30, is additionally provided with sludge solutions are sent into upper tank body 30 on upper tank body 30
Mud inlet 33 is equipped with the filter layer 34 sludge solutions are carried out with grain slag separation in lower tank 31, there is the on lower tank 31
The lower section of filter layer 34 is arranged in one pressure modulating opening 310, the first pressure modulating opening 310, further includes vacuum tank 35, and vacuum tank 35 is equipped with the
Two pressure modulating openings 350, the first pressure modulating opening 310 are connected to by connecting tube with the second pressure modulating opening 350, are connected with and vacuumize on vacuum tank 35
Device 36, is equipped with the first discharge outlet 312 on lower tank 31, and the first discharge outlet 312 is connected to sewage product by the first drainpipe
The lower section of the first pressure modulating opening 310 is arranged in pond 37, the first discharge outlet 312, and the second discharge outlet 352 is equipped on vacuum tank 35,
The lower section of the second pressure modulating opening 350 is arranged in second discharge outlet 352, and the second discharge outlet 352 is connected to sewage by the second drainpipe
Plash 37, the lower tank 31 are additionally provided with a microwave heating equipment 38 and third pressure modulating opening 311 in the top of filter layer 34,
The microwave heating equipment 38 includes a plurality of microwave launchers 380 and is coated on the outside of the microwave launcher 380
Metallic shield ring 381, is installed on 31 inner wall of lower tank on the outside of the metallic shield ring 381, and the lower tank 31 is in third
The metallic shield net 382 for coating entire third pressure modulating opening 311 is provided at 311 position of pressure modulating opening, the vacuum tank 35 is equipped with
4th pressure modulating opening 351, the third pressure modulating opening 311 are connected to the 4th pressure modulating opening 351 by connecting tube.Under the upper tank body 30
End is connected with upper flange, and the upper end of the lower tank 31 is connected with lower flange, and upper flange is detachable by connector with lower flange
Ground links together, and silicone gasket is equipped between upper flange and lower flange.The inner wall of the lower tank 31 is equipped with circumferential support
Platform, the filter layer 34 include sieve tray 340 and the strainer 341 being arranged on sieve tray 340, and sieve tray 340 is erected at ring-type
In supporting table.A pressure monitoring device 305 to monitor 30 chamber pressure of upper tank body, institute are additionally provided in the upper tank body 30
Stating pressure monitoring device 305 includes the first pressure gauge to show positive pressure and the second pressure gauge to show negative pressure.It is described
The mesh of metallic shield net 382 is smaller than presetting the microwave wavelength that the microwave launcher 380 generates.
Referring to Figures 1 and 2.The Blast mechanism 4 is provided with a triple valve, and the other two-way of the triple valve is connected to institute
It states on the first blow vent 103 and the second blow vent 24.
Referring to Figures 1 and 2.The course of work of the invention is a kind of method for sludge treatment.
A kind of processing method of sludge, comprising the following steps: a, heavy metal biochemical treatment；B, sludge dewatering improves；C, dirt
Mud dehydration and drying.
Wherein, the heavy metal biochemical treatment includes that sludge investment one to be processed is contained with oxidation-containing sulfur bacillus
In first tank body 10 of culture solution, wherein 10 bottom of the first tank body is equipped with the first blow vent 103, and inside is inserted with the first drainage
Cover 11, is aerated by the first blow vent 103 into the first tank body 10, and air-flow is from the first under shed of the first drainage hood 11 to first
Flowing, forms irregular vortex and negative pressure, sludge, thiobacillus thiooxidant and culture solution in the first drainage hood 11 in drainage hood 11
It is inhaled into from the bottom of drainage hood, promoted into the first drainage hood 11 and be sufficiently mixed, and by the first drainage under the action of air-flow
First upper opening of cover 11, which is flowed out and settled, to be flowed back into the first tank body 10, and sludge, the sulfur oxide in the first tank body 10 are flowed back into
Bacillus and culture solution are inhaled into from the bottom of the first drainage hood 11 by airflow function again, are promoted into the first drainage hood 11, from
And the iterative cycles between the first tank body 10 and the first drainage hood 11, so that the heavy metal of sludge and thiobacillus thiooxidant obtain sufficiently
Gas-solid contact effect eliminate in sludge so that heavy metal is dissolved out from sludge by the oxidation and acidification of thiobacillus thiooxidant
The content of heavy metal.In this step, by setting first pressure sensory package 17 and the first relief valve 18, and cooperate air blower
The ventilation of structure 4 acts on, and can form a pressures cycle processing system, after the ventilation of 10 internal cause of the first tank body causes air pressure to increase,
The infiltration of Interstitial Water and thiobacillus thiooxidant to sludge internal void, contact frequency of the oxidation reinforced Thiobacillus with sludge can be increased
Rate improves its ability for absorbing heavy metal in sludge, after pressure increases to 700kPa in the first tank body 10, first pressure sensing
After component 17 detects the pressure highest point threshold value, touches Blast mechanism 4 and stop ventilating into the first tank body 10, and start simultaneously
First relief valve 18, above-mentioned first relief valve 18 control the exhaust of the first tank body 10, by the pressure inside the first tank body 10 by
700kPa is reduced to atmospheric pressure, and the top of first tank body 10 generates a large amount of microbubble, the gas in Interstitial Water because of exhaust
Cognition releases and takes the product after heavy metal and reaction out of sludge hole.Since the hole of sludge is too small, gas when decompression
The rate released causes sludge pore interior pressure increase commonly greater than the rate that gas is discharged from hole.Work as sludge
When pore interior pressure is greater than the pressure that mud granule wall can bear, mud granule will be caused to implode or burst, made
The exposed amount of heavy metal increases in sludge, greatlys improve the gas-solid contact effect of heavy metal and thiobacillus thiooxidant, enhances its life
Change reaction, the removal effect of Heavy Metals in Sludge is greatly improved, when the pressure recovery in the first tank body 10 to general atmosphere
When pressure, after first pressure sensory package 17 detects the pressure minimum point threshold value, Blast mechanism 4 is touched again to the first tank body
Ventilation in 10, and the first relief valve 18 is simultaneously closed off, it is dropped again after again promoting 10 internal pressure of the first tank body to 700kPa
It is depressed into atmospheric pressure, constantly completes the circulation of pressurization and decompression, until sludge completes the removal of heavy metal.
Wherein, the sludge dewatering conditioning includes successively sequentially adding the process of three kinds of conditioning material, is added for the first time
Conditioning material is that thermal power plant ash flies, and the second conditioning material that is added is ferric chloride solution or cationic polyelectrolytes, finally
The conditioning material being once added is polymethacrylates system both sexes co-polymer.In this step, when sludge raw material and three kinds are adjusted
Reason material is fully immersed in the second tank body 20, and the Blast mechanism 4 improves the pressure inside second tank body 20 by pressurization, when
After the ventilation of second tank body, 20 internal cause causes air pressure to increase, Interstitial Water and three kinds of conditioning material can be increased to the infiltration of sludge internal void
Thoroughly, the contact frequency for reinforcing three kinds of conditionings material and sludge, improves the effect of its opsonic reaction, when pressure increases in the second tank body 20
To after 700kPa, after second pressure sensory package 27 detects the pressure highest point threshold value, touches Blast mechanism 4 and stop to second
Ventilation in tank body 20, and start the second relief valve 28 simultaneously, above-mentioned second relief valve 28 controls the exhaust of the second tank body 20, by second
Pressure inside tank body 20 is reduced to atmospheric pressure by 700kPa, and the top of second tank body 20 generates a large amount of micro- because of exhaust
Bubble, the gas in Interstitial Water can release and take the product after opsonic reaction out of sludge hole.Due to the hole mistake of sludge
Small, the rate that gas releases when decompression causes sludge pore interior pressure commonly greater than the rate that gas is discharged from hole
Power increases.When sludge pore interior pressure is greater than the pressure that mud granule wall can bear, mud granule will be caused inside
It ruptures or bursts, increase the exposed amount of polyelectrolyte and organic matter in sludge, greatly improve the gas of itself and three kinds of conditioning material
Affixed touching effect, enhances its physical and chemical reaction, so as to reduce the yield stress and appearance viscosity of sludge, helps to improve
Sludge dewatering effect, when the pressure recovery in the second tank body 20 is to general atmosphere pressure, second pressure sensory package 27 is detected
To after the pressure minimum point threshold value, touches Blast mechanism 4 and ventilate again into the second tank body 20, and simultaneously close off the second relief valve
28, it is depressurized to atmospheric pressure again after again promoting 20 internal pressure of the second tank body to 700kPa, constantly completes pressurization and decompression
Circulation, until sludge completes whole dehydrating and conditioning.
More specifically, during the sludge dewatering improves, sludge raw material and three kinds of conditioning material are respectively by the second charging
Mouth 22 and the second feeding port 23 enter in the second tank body 20, and the forced air generated by Blast mechanism 4 is by the second tank body
20 bottom generates bubble, and is injected in the second drainage channel by the second under shed of the second drainage hood 21, and in air-flow
It is flowed out and is settled by the second upper opening of the second drainage hood 21 under effect and flowed back into the second tank body 20, flowed back into the second groove body
Sludge raw material and three kinds of conditionings material be inhaled into, promoted to the from the second under shed of the second drainage hood 21 by airflow function again
In two drainage hoods 21, thus the iterative cycles between the second tank body 20 and the second drainage hood 21, so that sludge raw material and three kinds of tune
Reason material obtains sufficient gas-solid contact effect, so as to reduce the yield stress and appearance viscosity of sludge, helps to improve sludge
Dehydrating effect.
Wherein, the sludge dewatering drying includes that when in use, water-containing sludge mixing liquid is drawn into upper tank body 30,
Mud inlet 33 is closed later, starts pressurizing device 32 and vacuum evacuation device 36, is made in upper tank body 30 by pressurizing device 32
Pressure enhancing, makes the pressure reduction in lower tank 31 to vacuum state, such upper tank body 30 and lower tank by vacuum tank 35
Biggish pressure difference is formed between 31, the water energy in the water-containing sludge mixing liquid in upper tank body 30 enough runs through filtering
Layer 34, and sludge then stays in the top of filter layer 34, and due to being capable of forming pressure difference between upper tank body 30 and lower tank 31,
Guarantee is quickly separated by solid-liquid separation, and after separation of solid and liquid finishes, starting microwave launcher 380 discharges microwave, microwave and dirt
Hydrone in mud acts on and is heated so that moisture contained by sludge can spread and evaporate into air, reaches dry sludge
The effect of.After the moisture removal in body refuse finishes, realized between upper tank body 30 and lower tank 31 by the stomata in body refuse
Connection, the pressure of upper tank body 30 reduces rapidly, may determine that sludge is processed by pressure monitoring device 305 and finish, pass through by
Lower tank 31 is dismantled, and body refuse is cleaned out, and body refuse can be used in the building fields such as filler or compound fertilizer and carry out recycling benefit
With.In this step, the moisture to get off is permeated from filter layer 34 mainly pass through the first discharge outlet 312 drain into sewage plash
37, and the vapor in lower tank 31 can enter vacuum tank 35 by connecting tube and drain into sewage from the second discharge outlet 352
Intake pool, to ensure that moisture can sufficiently be discharged.
Meanwhile making microwave repeat reflection in microwave heating equipment 38 using metallic shield technology, it avoids dried
The microwave generated in journey leaks, and then sludge can be made to be heated properly drying, improves the drying effect of sludge.Add carrying out microwave
In thermal process, vacuum tank 35 can act on simultaneously, cause to form a negative pressure inside lower tank 31, to generate an air-flow, take away
The water vapour that heating process generates, using entering vacuum tank 35 after the mesh of metallic shield net 382 and from the second discharge outlet 352
In drain into wastewater influent pond.
Compared to the prior art, the beneficial effect that the present invention generates is:
1, the configuration of the present invention is simple, practical, by the way that a heavy metal biochemical treatment tank body is arranged, can by air-flow by
The bottom of first tank body 10 is passed through, and air-flow is flowed from the first under shed of the first drainage hood 11 into the first drainage hood 11,
Irregular vortex is formed in one drainage hood 11 and negative pressure, sludge, thiobacillus thiooxidant and culture solution are inhaled from the bottom of drainage hood
Enter, promoted into the first drainage hood 11 and be sufficiently mixed, and by the first upper opening stream of the first drainage hood 11 under the action of air-flow
Out and settle and flow back into the first tank body 10, flow back into sludge, thiobacillus thiooxidant and culture solution in the first tank body 10 again by
Airflow function is inhaled into from the bottom of the first drainage hood 11, is promoted into the first drainage hood 11, thus in the first tank body 10 and
Iterative cycles between one drainage hood 11 make so that the heavy metal of sludge and thiobacillus thiooxidant obtain sufficient gas-solid contact effect
It obtains heavy metal to be dissolved out from sludge by the oxidation and acidification of thiobacillus thiooxidant, eliminates the content of heavy metal in sludge.
2, tank body 2 in the present invention, is improved by one sludge dewatering of setting, after conditioning material is added, passes through Blast mechanism 4
The forced air of generation generates bubble by the bottom of the second tank body 20, and by the second under shed of the second drainage hood 21 injection the
In two drainage channels, and is flowed out and settled by the second upper opening of the second drainage hood 21 under the action of air-flow and flow back into the second tank
In body 20, flow back into the intracorporal sludge raw material of the second slot and three kinds of conditioning material again by airflow function from the second drainage hood 21 the
Two under sheds are inhaled into, are promoted into the second drainage hood 21, to follow repeatedly between the second tank body 20 and the second drainage hood 21
Ring so that sludge raw material and three kinds of conditionings material obtain sufficient gas-solid contact effects, so as to reduce the yield stress of sludge with
Appearance viscosity helps to improve sludge dewatering effect.
3, in the present invention, the conditioning material of addition not only includes that thermal power plant ash flies this physics conditioning material, further includes
Ferric chloride solution and polymethacrylates system both sexes co-polymer both chemical conditioning material.Addition thermal power plant ash flies to help
Filter can be reduced the dosage of high molecular polymer, and promote the dehydration of sludge when cooperation high molecular polymer carries out multiple conditioning
Efficiency increases the solid content of sludge cake.Additionally by two kinds of chemical conditioning material of setting, and using between two kinds of chemical conditioning material
Reciprocation, cause misfit form, reach better flocculating effect, increase the adhesion between mud granule, formed it is bigger and
Stronger glue plumage reduces polyelectrolyte and remains in solution, while improving the dehydration property of sludge.
4, in the present invention, by the dry tank body 3 of one sludge dewatering of setting, when in use by sewage solution from mud inlet 33
In be transported in upper tank body 30, mud inlet 33 is closed later, starts pressurizing device 32 and vacuum evacuation device 36, passes through pressurization dress
Pressure enhancing when setting 32 in upper tank body 30, makes the pressure reduction in lower tank 31 to vacuum state, such as by vacuum tank 35
Biggish pressure difference is formed between this upper tank body 30 and lower tank 31, the moisture in the sewage solution in upper tank body 30 can
Filter layer 34 is run through, and body refuse then stays in the top of filter layer 34, when going back residual moisture in body refuse, due to the water of moisture
Envelope effect, is capable of forming pressure difference between upper tank body 30 and lower tank 31, guarantee quickly to carry out grain slag separation, when the water in body refuse
After dividing removing to finish, it is connected between upper tank body 30 and lower tank 31 by the stomata realization in body refuse, the pressure of upper tank body 30
It reduces rapidly, may determine that sludge is processed by pressure monitoring device 305 and finish, by dismantling lower tank 31, and by mud
Slag cleans out, and body refuse can be used in the building fields such as filler or compound fertilizer and be recycled.In the present invention, from filtering
It permeates the moisture to get off in layer 34 and mainly passes through the first discharge outlet 312 and drain into sewage plash 37, and the water in lower tank 31 steams
Gas can enter vacuum tank 35 by connecting tube and drain into wastewater influent pond from the second discharge outlet 352, to ensure that moisture
It can sufficiently be discharged.
5, in the present invention, by the way that microwave heating equipment 38 is arranged in lower tank 31, and microwave heating equipment 38 can
With microwave at release, so that the hydrone in sludge is interacted with the microwave and is heated, so that contained by sludge
Moisture can spread and volatilize, achieve the purpose that dry sludge.
6, in the present invention, pass through the 4th pressure modulating opening 351 on vacuum tank 35 and the third near microwave heating equipment 38
Pumping cooperation between pressure modulating opening 311, causes to form a negative pressure inside microwave heating equipment 38, and then generate an air-flow, this gas
The top air inlet of tank body 31 is flowed down, and passes through vacuum tank 35, takes away the water vapour of microwave heating process generation, vapor can lead to
It crosses connecting tube to be delivered in vacuum tank 35, and is condensed into liquid water in vacuum tank 35, and sewage is delivered to by the second drainpipe
In plash 37, it can so guarantee that the moisture in lower tank 31 is more adequately emitted into sewage plash 37.
7, in the present invention, by setting metallic shield ring 381 and metallic shield net 382, microwave can be made in microwave
Reflection is repeated in heating device 38, and the microwave generated in drying process is avoided to leak.Sludge can also be enable uniform simultaneously
Heating, drying further increases the drying effect of sludge.
8, in the present invention, by setting first pressure sensory package 17 and the first relief valve 18, and cooperate air blower
The ventilation of structure 4 acts on, and can form a pressures cycle processing system, after the ventilation of 10 internal cause of the first tank body causes air pressure to increase,
The infiltration of Interstitial Water and thiobacillus thiooxidant to sludge internal void, contact frequency of the oxidation reinforced Thiobacillus with sludge can be increased
Rate improves its ability for absorbing heavy metal in sludge, after pressure increases to 700kPa in the first tank body 10, first pressure sensing
After component 17 detects the pressure highest point threshold value, touches Blast mechanism 4 and stop ventilating into the first tank body 10, and start simultaneously
First relief valve 18, above-mentioned first relief valve 18 control the exhaust of the first tank body 10, by the pressure inside the first tank body 10 by
700kPa is reduced to atmospheric pressure, and the top of first tank body 10 generates a large amount of microbubble, the gas in Interstitial Water because of exhaust
Cognition releases and takes the product after heavy metal and reaction out of sludge hole.Since the hole of sludge is too small, gas when decompression
The rate released causes sludge pore interior pressure increase commonly greater than the rate that gas is discharged from hole.Work as sludge
When pore interior pressure is greater than the pressure that mud granule wall can bear, mud granule will be caused to implode or burst, made
The exposed amount of heavy metal increases in sludge, greatlys improve the gas-solid contact effect of heavy metal and thiobacillus thiooxidant, enhances its life
Change reaction, the removal effect of Heavy Metals in Sludge is greatly improved, when the pressure recovery in the first tank body 10 to general atmosphere
When pressure, after first pressure sensory package 17 detects the pressure minimum point threshold value, Blast mechanism 4 is touched again to the first tank body
Ventilation in 10, and the first relief valve 18 is simultaneously closed off, it is dropped again after again promoting 10 internal pressure of the first tank body to 700kPa
It is depressed into atmospheric pressure, constantly completes the circulation of pressurization and decompression, until sludge completes the removal of heavy metal.
9, in the present invention, by setting second pressure sensory package 27 and the second relief valve 28, and cooperate air blower
The ventilation of structure 4 acts on, and can form another pressures cycle processing system, when the ventilation of 20 internal cause of the second tank body causes air pressure to increase
Afterwards, the infiltration of Interstitial Water and three kinds of conditioning material to sludge internal void can be increased, reinforce contact of three kinds of conditioning material with sludge
Frequency improves the effect of its opsonic reaction, after pressure increases to 700kPa in the second tank body 20, second pressure sensory package 27
After detecting the pressure highest point threshold value, touches Blast mechanism 4 and stop ventilating into the second tank body 20, and starting second is let out simultaneously
Pressure valve 28, above-mentioned second relief valve 28 control the exhaust of the second tank body 20, the pressure inside the second tank body 20 are reduced by 700kPa
To atmospheric pressure, the top of second tank body 20 generates a large amount of microbubble because of exhaust, and the gas in Interstitial Water can release simultaneously
Take the product after opsonic reaction out of sludge hole.Since the hole of sludge is too small, the rate that gas releases when decompression is often
Greater than the rate that gas is discharged from hole, therefore cause sludge pore interior pressure increase.When sludge pore interior pressure is big
When the pressure that mud granule wall can bear, mud granule will be caused to implode or burst, make polyelectrolyte in sludge
Increase with the exposed amount of organic matter, greatlys improve the gas-solid contact effect of itself and three kinds of conditioning material, enhance its physics and chemistry
Reaction helps to improve sludge dewatering effect, when in the second tank body 20 so as to reduce the yield stress and appearance viscosity of sludge
Pressure recovery to general atmosphere pressure when, after second pressure sensory package 27 detects the pressure minimum point threshold value, touch drum
Blower structure 4 is ventilated into the second tank body 20 again, and simultaneously closes off the second relief valve 28, again by 20 internal pressure of the second tank body
It is depressurized to atmospheric pressure again after promoting 700kPa, constantly the circulation of completion pressurization and decompression, until sludge completes whole take off
Water conditioning.
The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited to this, all to utilize this
Design makes a non-material change to the present invention, and should all belong to behavior that violates the scope of protection of the present invention.
Claims (6)
1. a kind of sludge treatment device of dewatering improvement, it is characterised in that: the sludge being successively successively passed through including sludge
Heavy metal biochemical treatment tank body, sludge dewatering conditioning tank body and the dry tank body of a sludge dewatering；The sludge heavy-metal is raw
Change processing tank body to include one first tank body, one be set to the first drainage hood and a Blast mechanism of first tank interior, institute
State be provided on the first tank body one for launches the sludge raw material containing heavy metal first charging aperture, one be used for launch oxidation-containing sulfur
First feeding port of the nutrient solution of bacillus and first blow vent that is connected with Blast mechanism, first blow vent are located at
The bottom of first tank body, first drainage hood include one first upper opening, one right above first blow vent
The first under shed and one first upper opening is extended to by the first under shed and the first drainage channel for being formed, the sludge is de-
Water conditioning tank body includes that one second tank body and one are set to the second drainage hood of second tank interior, on second tank body
Be provided with one for by the second charging aperture of sludge raw material, one for launching the second feeding port that conditioning is expected and one and one rousing
The second blow vent that blower structure is connected, second blow vent are located at the bottom of second tank body, second drainage hood
It is located at the second under shed and one right above second blow vent by the extension of the second under shed including one second upper opening, one
The second drainage channel formed to the second upper opening, the second charging aperture are connected to first blow vent, the sludge
Dehydrating and conditioning tank body further includes that a second pressure sensory package for being set to the second tank body top and one pass with the second pressure
Feel one second relief valve of component electrical connection, second relief valve is used to control the row of the second tank interior ullage air
Cooperate the ventilation of Blast mechanism to act on closing, the second pressure sensory package and the second relief valve out, can form another
Pressures cycle processing system, after the ventilation of the second tank body internal cause causes air pressure to increase to 700kPa, the inspection of second pressure sensory package
After measuring the pressure highest point threshold value, touches Blast mechanism and stops ventilating into the second tank body, and start the second relief valve simultaneously,
Above-mentioned second relief valve controls the second tank exhaust, and the pressure of the second tank interior is reduced to atmospheric pressure by 700kPa, when the
When the intracorporal pressure recovery of two tanks is to general atmosphere pressure, after second pressure sensory package detects the pressure minimum point threshold value,
It touches Blast mechanism to ventilate into the second tank body again, and simultaneously closes off the second relief valve, again by the second tank interior pressure
It is depressurized to atmospheric pressure again after promoting 700kPa, constantly the circulation of completion pressurization and decompression, until sludge completes whole take off
Water conditioning, the dry tank body of the sludge dewatering include the upper tank body of lower ending opening and the lower tank of upper end opening, under upper tank body
It holds and is removably joined together with the upper end of lower tank, the pressurization dress being connected to the inner cavity of upper tank body is connected on upper tank body
It sets, the mud inlet sludge solutions to be sent into upper tank body is additionally provided on upper tank body, be equipped in lower tank to sludge
Solution carries out the filter layer of grain slag separation, has the first pressure modulating opening on lower tank, and the lower section of filter layer is arranged in the first pressure modulating opening, also
Including vacuum tank, vacuum tank is equipped with the second pressure modulating opening, and the first pressure modulating opening is connected to the second pressure modulating opening by connecting tube, vacuum tank
On be connected with vacuum evacuation device, the first discharge outlet is equipped on lower tank, the first discharge outlet is connected to dirt by the first drainpipe
The lower section of the first pressure modulating opening is arranged in water plash, the first discharge outlet, and the second discharge outlet, the second discharge outlet are equipped on vacuum tank
The lower section of second pressure modulating opening is set, and the second discharge outlet is connected to sewage plash by the second drainpipe, and the lower tank exists
A microwave heating equipment and third pressure modulating opening are additionally provided with above filter layer, the microwave heating equipment includes a plurality of microwaves
Emitter and the metallic shield ring being coated on the outside of the microwave launcher, be installed on the outside of metallic shield ring it is described under
Inner tank wall face, the lower tank are provided with the metallic shield net for coating entire third pressure modulating opening at third pressure modulating opening position,
The vacuum tank is equipped with the 4th pressure modulating opening, and the third pressure modulating opening is connected to the 4th pressure modulating opening by connecting tube, the upper tank
The lower end of body is connected with upper flange, and the upper end of the lower tank is connected with lower flange, upper flange and lower flange can by connector
It releasably links together, silicone gasket is equipped between upper flange and lower flange, the mesh of the metallic shield net is than default
The microwave wavelength that the microwave launcher generates is small.
2. the sludge treatment device of a kind of dewatering improvement as described in claim 1, it is characterised in that: the lower tank it is interior
Wall is equipped with circumferential support platform, and the filter layer includes sieve tray and the strainer that is arranged on sieve tray, and sieve tray is erected at ring-type
In supporting table.
3. a kind of sludge treatment device of dewatering improvement as claimed in claim 2, it is characterised in that: in the upper tank body also
It is provided with a pressure monitoring device to monitor upper tank body chamber pressure, the pressure monitoring device includes to show positive pressure
First pressure gauge and the second pressure gauge to show negative pressure.
4. a kind of sludge treatment device of dewatering improvement as described in claim 1, it is characterised in that: the first charging aperture
The two sides of first tank body upper end are respectively set to the first feeding port, first tank body is a Heat Conduction Material tank body, described
First tank body is additionally provided with a heating part, which surround the snake pipe for being set to the first tank body lateral wall for one,
The thermostat that the snake pipe is contained with heating fluid with one is connected, and the heavy metal biochemical treatment tank body further includes one setting
It is placed in the first pressure sensory package on the first tank body top and one is electrically connected with the first pressure sensory package one first lets out
Pressure valve, first relief valve are used to control the discharge and closing of the first tank interior ullage air.
5. a kind of sludge treatment device of dewatering improvement as described in claim 1, it is characterised in that: second drainage hood
On be provided with a plurality of spaced apart conduction holes, be provided with the drainage cap protruded outwardly above the conduction hole.
6. a kind of sludge treatment device of dewatering improvement as described in claim 1, it is characterised in that: feed intake toward described second
It includes the three kinds of conditionings material successively sequentially added that conditioning material is launched in mouthful, and the conditioning material being added for the first time is thermal power plant ash
Fly, second of conditioning material being added is ferric chloride solution or cationic polyelectrolytes, and the conditioning material that last time is added is poly-
Methacrylate ester both sexes co-polymer.
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| CN113582504A (en) * | 2021-07-29 | 2021-11-02 | 海南天鸿市政设计股份有限公司 | Simple and easy high-efficient sludge thickening dehydration all-in-one |
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| CN2094377U (en) * | 1991-05-31 | 1992-01-29 | 郭伟 | Filter membrane pressure filter pot |
| DE19739864A1 (en) * | 1997-09-11 | 1999-03-18 | Dornier Gmbh Lindauer | Process for treating the exhaust air from thermal drying processes, in particular from processes during the drying of sewage sludge in sewage sludge dryers and plant for carrying out the process |
| CN201258290Y (en) * | 2008-07-22 | 2009-06-17 | 上海海巴机械工程有限公司 | Centripetal concentrated sludge flocculating regulating trough |
| CN103274575B (en) * | 2013-03-26 | 2014-06-25 | 福建省亚热带植物研究所 | Method for efficiently purifying municipal sludge heavy metals |
| CN104689637B (en) * | 2015-03-04 | 2016-06-01 | 邯郸市同达矿用电器有限公司 | The method of equipment for separating liquid from solid and production hopcalite agent |
| CN205295101U (en) * | 2015-12-15 | 2016-06-08 | 南安市先创环保技术服务有限公司 | Sludge processing apparatus of dehydration performance improvement |
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Effective date of registration: 20201119 Address after: No.39, Wayao, Gaokeng village, Guoqiang Township, Pinghe County, Zhangzhou City, Fujian Province Patentee after: Chen Xiuzhu Address before: 362321, Quanzhou, Fujian Province, Meishan Town, Nanan Province, No. 97 East Road, No. 3 Patentee before: NAN'AN XIANCHUANG ENVIRONMENTAL PROTECTION TECHNOLOGY SERVICE Co.,Ltd. |