CN111087183A - Lime device with pneumatic blowback equipment - Google Patents
Lime device with pneumatic blowback equipment Download PDFInfo
- Publication number
- CN111087183A CN111087183A CN201811229149.1A CN201811229149A CN111087183A CN 111087183 A CN111087183 A CN 111087183A CN 201811229149 A CN201811229149 A CN 201811229149A CN 111087183 A CN111087183 A CN 111087183A
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- CN
- China
- Prior art keywords
- air
- lime
- bin
- communicated
- ring pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 103
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 103
- 239000004571 lime Substances 0.000 title claims abstract description 103
- 238000003860 storage Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007664 blowing Methods 0.000 claims description 5
- 240000006909 Tilia x europaea Species 0.000 claims 11
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 239000010802 sludge Substances 0.000 description 13
- 230000003750 conditioning effect Effects 0.000 description 8
- 238000007599 discharging Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/02—Lime
- C04B2/04—Slaking
- C04B2/08—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
- C02F11/12—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a lime device with pneumatic back flushing equipment, which comprises: the device comprises a lime bin, an air compressor air storage tank, an air pipeline and an air ring pipe, wherein a discharge port at the bottom of the lime bin is communicated with a discharge pipe, a gate valve is arranged between the discharge port and the discharge pipe, and a tray is arranged at the bottom in the lime bin; one end of the air pipeline is communicated with an air storage tank of the air compressor, the other end of the air pipeline is communicated with the air ring pipe, an automatic gas-water separator is arranged on the air pipeline between the air ring pipe and the air storage tank of the air compressor, and a pressure reducing valve is arranged on the air pipeline between the automatic gas-water separator and the air storage tank of the air compressor; the air ring pipe is positioned at the bottom of the lime bin, and a plurality of air pipes are uniformly distributed on the air ring pipe and communicated with the air ring pipe, and are communicated with the inside of the lime bin. The invention utilizes gas to continuously back blow the bottom of the lime bin, plays a role in inhibiting lime hardening at the bottom of the lime bin, and reduces a large amount of labor and economic loss after blockage.
Description
Technical Field
The invention relates to a lime device for sewage treatment, in particular to a lime device with pneumatic back flushing equipment.
Background
The sludge treatment in a general sewage treatment plant adopts a chemical conditioning and diaphragm filter pressing process, and the construction contents comprise sludge receiving and diluting, sludge conditioning, deep sludge dewatering and sludge outward transportation. Adding a medicament of ferric trichloride and lime for conditioning, wherein the lime is lime dry powder with the purity higher than 90%, and the lime powder is conveyed by a discharging screw to be mixed with reclaimed water to prepare lime milk with the concentration of about 8%.
The existing lime device is provided with two sets, one set is used and the other set is prepared, and the lime device consists of a lime bin, an unloading gate valve, an unloading vibrator, an unloading screw, a deslagging device, a reclaimed water preparation system, a preparation tank and a storage tank. The lime medicament is transported to a sewage treatment plant by an automobile provided by a lime manufacturer and is pumped into a lime bin by an air compressor, is pumped into a lime preparation tank by a gate valve and a vibrator at the bottom of the lime bin and an unloading screw to be mixed with reclaimed water, overflows to a storage tank, and is pumped into a comprehensive conditioning tank by a lime pump to be conditioned.
Due to the structural defects of the lime bin, and the temperature and humidity changes inside and outside the bin, the problems of lime pressing, hardening, unsmooth blanking and the like on the upper part of the supporting plate are easily caused, so that the concentration is uneven, and the sludge conditioning is adversely affected. The gate valve at the bottom of the lime device is required to be detached to clear the blockage, hardened lime in the lime bin is cleared, and the lime above the hardened lime bin can only be emptied. When the lime bin is at a low material level, the waste lime is relatively less, but when the lime bin is above a medium-high material level, the emptied lime is equivalent to one-car to two-car lime transport vehicles, and the economic loss is directly caused by one-time blockage removal.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a lime device with a pneumatic back-blowing device, which utilizes gas to continuously back-blow the bottom of a lime bin, plays a role in inhibiting lime hardening at the bottom of the lime bin, and reduces a large amount of labor and economic loss after blockage.
In order to achieve the purpose, the invention adopts the following technical scheme:
a lime installation with a pneumatic blowback device, comprising: the lime bin is characterized by comprising a lime bin, an air compressor air storage tank, an air pipeline and an air ring pipe, wherein the bottom of the lime bin is provided with a discharge hole, the discharge hole is communicated with a discharge pipe, a gate valve is arranged between the discharge hole and the discharge pipe, the bottom in the lime bin is provided with a tray, the lime bin is also connected with a vibrator, the vibrator is positioned below the tray, and the discharge pipe is also connected with a star-shaped discharger;
one end of the air pipeline is communicated with a bypass on the air storage tank of the air compressor, the other end of the air pipeline is communicated with an air ring pipe, an automatic gas-water separator is arranged on the air pipeline between the air ring pipe and the air storage tank of the air compressor, and a pressure reducing valve is arranged on the air pipeline between the automatic gas-water separator and the air storage tank of the air compressor;
the air ring pipe is positioned at the bottom of the lime bin, a plurality of air pipes are uniformly distributed and communicated on the air ring pipe, the air pipes are communicated with the inside of the lime bin, and each air pipe is connected with a manual valve.
The number of the air pipes is six, and the number of the corresponding manual valves is six.
The discharge port is connected with the discharge pipe through a flange, and the gate valve is positioned between the flanges.
The air pressure of the air pipeline is 0.4MPa-0.6 MPa.
In the technical scheme, the lime device with the pneumatic back-blowing equipment provided by the invention has the advantages that the bottom of the lime bin is continuously back-blown by utilizing gas, the lime hardening at the bottom of the lime bin is inhibited, and a large amount of labor and economic loss after blockage are reduced. Effectively reduces the medicament loss and controls the maintenance cost. Reduce abnormal sludge conditioning, improve the running stability of the system and improve the sludge productivity. The influence of the environment is reduced, and the operation safety risk is avoided.
Drawings
Fig. 1 is a schematic structural view of a lime installation of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Referring to fig. 1, a lime device with a pneumatic back-blowing device provided by the present invention includes: lime feed bin 1, air compressor machine gas holder 2, air conduit 3 and air ring pipe 4, the bottom in lime feed bin 1 is the discharge gate, and this discharge gate is linked together with discharging pipe 5, links to each other through the flange between discharge gate and the discharging pipe 5, is equipped with push-pull valve 6 between two flanges, and the bottom in lime feed bin 1 is equipped with tray 7, still even has electromagnetic shaker 8 on the lime feed bin 1, and electromagnetic shaker 8 is located the below of tray 7, still even has star type tripper 9 on discharging pipe 5. Lime is pumped into a lime bin 1 by an air compressor and falls onto a tray 7, the lime falls into a discharge pipe 5 by a vibrator 8 and a gate valve 6, the lime is pumped into a lime preparation tank by a star discharger 9 to be mixed with reclaimed water and overflows to a storage tank, and the lime is pumped into a comprehensive conditioning pool by a lime pump to be conditioned.
Preferably, one end of the air pipeline 3 is communicated with a bypass on the air storage tank 2 of the air compressor, the other end of the air pipeline 3 is communicated with the air ring pipe 4, the air pipeline 3 between the air ring pipe 4 and the air storage tank 2 of the air compressor is provided with an automatic gas-water separator 10, and the air pipeline 3 between the automatic gas-water separator 10 and the air storage tank 2 of the air compressor is provided with a pressure reducing valve 11.
Preferably, the air ring pipe 4 is located at the bottom of the lime bin 1, six air pipes 12 are uniformly distributed and communicated on the air ring pipe 4, the six air pipes 12 are all communicated with the interior of the lime bin 1, and each air pipe 12 is connected with a manual valve.
An air pipeline 3 is led into an air compressor air storage tank 2 in a pump room in a bypass mode, an automatic gas-water separator 10 is additionally arranged on the air pipeline 3 to guarantee drying of the air pipeline 3, a pressure reducing valve 11 is installed to adjust the pressure of the air compressor air storage tank 2 from 0.8MPa to 0.6MPa, and therefore it is guaranteed that lime can sweep and tumble, but the lime cannot be blown out of a lime storage bin 1 from the top to cause blockage of a cloth bag dust removal bag. Install air ring pipe 4 additional in lime feed bin 1 bottom, concentrate or the dispersion sweeps six trachea 12 according to every different angles, sweep the inside tray 7 of lime feed bin 1 and jar wall unloading clearance blowback to cooperate the unloading with electromagnetic shaker 8, make lime dry powder be in incessant mobile state in lime feed bin 1, guaranteed the lime ejection of compact and do not blockked up, the lime breast concentration of configuration out is stable, is favorable to mud to be taked care of.
The lime device disclosed by the invention has the advantages that the gas is used for continuously back-blowing the bottom of the lime bin, so that the lime hardening at the bottom of the lime bin is inhibited, and a large amount of manpower and economic losses after blockage are reduced. Effectively reduces the medicament loss and controls the maintenance cost. Reduce abnormal sludge conditioning, improve the running stability of the system and improve the sludge productivity. The sludge yield is 103258.00 tons and the lime consumption is 47860.14 tons before the lime device is not used, and the sludge yield is 106701.15 tons and the lime consumption is 42759.46 tons after the lime device is used, so that the lime device reduces the lime by about 5100 tons (about 500 yuan per ton) and saves about 225 ten thousand yuan when the sludge yield is increased.
The lime device also has the advantages of reducing the influence of the environment and avoiding the operation safety risk. Before the lime device is not used, the dust blockage removal is diffused every time, the surrounding environment is severe, and the hidden danger of major occupational hazards exists. After the lime device is used, the blocking frequency of the lime bin is increased from 3-4 times in the previous week to 1-2 times per month, the blocking caused by lime caking cannot be formed, and dust diffusion in an area caused by cleaning the lime bin cannot occur.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
1. A lime device with pneumatic back-blowing equipment is characterized by comprising: the lime bin is characterized by comprising a lime bin, an air compressor air storage tank, an air pipeline and an air ring pipe, wherein the bottom of the lime bin is provided with a discharge hole, the discharge hole is communicated with a discharge pipe, a gate valve is arranged between the discharge hole and the discharge pipe, the bottom in the lime bin is provided with a tray, the lime bin is also connected with a vibrator, the vibrator is positioned below the tray, and the discharge pipe is also connected with a star-shaped discharger;
one end of the air pipeline is communicated with a bypass on the air storage tank of the air compressor, the other end of the air pipeline is communicated with an air ring pipe, an automatic gas-water separator is arranged on the air pipeline between the air ring pipe and the air storage tank of the air compressor, and a pressure reducing valve is arranged on the air pipeline between the automatic gas-water separator and the air storage tank of the air compressor;
the air ring pipe is positioned at the bottom of the lime bin, a plurality of air pipes are uniformly distributed and communicated on the air ring pipe, the air pipes are communicated with the inside of the lime bin, and each air pipe is connected with a manual valve.
2. The lime plant with pneumatic blowback equipment of claim 1, wherein: the number of the air pipes is six, and the number of the corresponding manual valves is six.
3. The lime plant with pneumatic blowback equipment of claim 1, wherein: the discharge port is connected with the discharge pipe through a flange, and the gate valve is positioned between the flanges.
4. The lime plant with pneumatic blowback equipment of claim 1, wherein: the air pressure of the air pipeline is 0.4MPa-0.6 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229149.1A CN111087183B (en) | 2018-10-22 | 2018-10-22 | Lime device with pneumatic back blowing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229149.1A CN111087183B (en) | 2018-10-22 | 2018-10-22 | Lime device with pneumatic back blowing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111087183A true CN111087183A (en) | 2020-05-01 |
| CN111087183B CN111087183B (en) | 2024-04-12 |
Family
ID=70391215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811229149.1A Active CN111087183B (en) | 2018-10-22 | 2018-10-22 | Lime device with pneumatic back blowing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111087183B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2004110350A (en) * | 2004-04-05 | 2005-10-10 | Карл Яковлевич Витман (RU) | METHOD FOR HOMOGENIZING GROUND LIME AND A DEVICE FOR ITS IMPLEMENTATION |
| CN202625910U (en) * | 2012-07-03 | 2012-12-26 | 中国大唐集团环境技术有限公司 | Lime feeding device |
| CN104307399A (en) * | 2014-10-27 | 2015-01-28 | 上海城投污水处理有限公司 | Dosing device and using method thereof |
| CN204897752U (en) * | 2015-08-14 | 2015-12-23 | 潍坊市天源环保科技有限公司 | Lime system of dissolving |
| CN204999074U (en) * | 2015-07-30 | 2016-01-27 | 南京中电自动化有限公司 | Reduce whitewashed feed cylinder storehouse of agglomerating of lime in storehouse |
| CN207237539U (en) * | 2017-08-02 | 2018-04-17 | 智胜化工股份有限公司 | A kind of device using fluid-tight processing lime airborne dust |
| CN207903920U (en) * | 2017-12-08 | 2018-09-25 | 石家庄国华环保科技有限公司 | A kind of lime automatic Dosing System |
| CN208980594U (en) * | 2018-10-22 | 2019-06-14 | 上海城投污水处理有限公司 | A kind of lime device with Pneumatic power back-blowing equipment |
-
2018
- 2018-10-22 CN CN201811229149.1A patent/CN111087183B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2004110350A (en) * | 2004-04-05 | 2005-10-10 | Карл Яковлевич Витман (RU) | METHOD FOR HOMOGENIZING GROUND LIME AND A DEVICE FOR ITS IMPLEMENTATION |
| CN202625910U (en) * | 2012-07-03 | 2012-12-26 | 中国大唐集团环境技术有限公司 | Lime feeding device |
| CN104307399A (en) * | 2014-10-27 | 2015-01-28 | 上海城投污水处理有限公司 | Dosing device and using method thereof |
| CN204999074U (en) * | 2015-07-30 | 2016-01-27 | 南京中电自动化有限公司 | Reduce whitewashed feed cylinder storehouse of agglomerating of lime in storehouse |
| CN204897752U (en) * | 2015-08-14 | 2015-12-23 | 潍坊市天源环保科技有限公司 | Lime system of dissolving |
| CN207237539U (en) * | 2017-08-02 | 2018-04-17 | 智胜化工股份有限公司 | A kind of device using fluid-tight processing lime airborne dust |
| CN207903920U (en) * | 2017-12-08 | 2018-09-25 | 石家庄国华环保科技有限公司 | A kind of lime automatic Dosing System |
| CN208980594U (en) * | 2018-10-22 | 2019-06-14 | 上海城投污水处理有限公司 | A kind of lime device with Pneumatic power back-blowing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111087183B (en) | 2024-04-12 |
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