CN109771999A - A kind of cake dewatering method and device for new type coal gasification - Google Patents
A kind of cake dewatering method and device for new type coal gasification Download PDFInfo
- Publication number
- CN109771999A CN109771999A CN201811554182.1A CN201811554182A CN109771999A CN 109771999 A CN109771999 A CN 109771999A CN 201811554182 A CN201811554182 A CN 201811554182A CN 109771999 A CN109771999 A CN 109771999A
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- Prior art keywords
- ceramic wafer
- filter cake
- scraper
- cake
- filter
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- 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.)
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- 239000003245 coal Substances 0.000 title claims abstract description 21
- 238000002309 gasification Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 83
- 239000012065 filter cake Substances 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 16
- 239000011343 solid material Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 230000010148 water-pollination Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 241000143437 Aciculosporium take Species 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The present invention provides a kind of cake dewatering method and device for new type coal gasification, is related to filter cake processing technology field, includes the following steps: that a. evacuates ceramic wafer inner cavity；B. material is placed in ceramic wafer hopper；C. with the material in stirring rod stirring hopper；D. filter cake is formed on ceramic wafer；E. filter cake is dried；F. filter cake is scraped from ceramic wafer；G. the backwash of ceramic wafer；It is small to change traditional vacuum belt filter and filter press filters pressing two ways, occupied area by the use of ceramic filter by the present invention, filter cake after filter not only can be transported directly, can also directly carry out mixing burning into boiler, solve the problems, such as that filter cake moisture is more, its power consumption simultaneously is less, operation and maintenance cost is low, and equipment can be with longtime running, entire invention clear thinking, it can be good at optimizing the filtering technique of coal gasification apparatus, power supply and resource are saved, maintenance cost is reduced, practicability is high.
Description
Technical field
The present invention relates to filter cake processing technology field more particularly to a kind of cake dewatering method for new type coal gasification and
Device.
Background technique
Coal gasification is a thermochemical process.Using coal or coal tar as raw material, steamed with oxygen (air, oxygen-enriched or pure oxygen), water
Gas or hydrogen etc. make gasifying agent, convert gas combustion for the combustible constituent in coal or coal tar by chemical reaction under the high temperature conditions
The process of material or downstream raw material.Filter cake refers to the blocks of solid that material is formed between filter plate and filter plate after filter press filters
Object.
As long as the filtering technique that coal gasification apparatus uses at present be vacuum belt filter and two kinds of filter press filters pressing, this two kinds
Above technology, the filter cake moisture content after vacuum belt filter is higher, is unfavorable for transporting, while power consumption is higher；Filter press filters pressing
Technical maintenance larger workload invests larger, operation and maintenance cost height.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of cake dewatering method and device for new type coal gasification
Technical problem.
The present invention using following technical scheme in order to solve the above technical problems, realized:
A kind of cake dewatering method for new type coal gasification, characterized by the following steps:
A. take a ceramic filter, ceramic wafer inner cavity evacuated, inside cavity is made to be in vacuum state, inside cavity with
Outside generates draught head；
B. material is placed in the hopper of ceramic wafer upper end, material is adsorbed on ceramic wafer under the action of negative pressure；
C. the material solidliquid mixture in hopper is stirred always with stirring rod, solid material is because that cannot pass through capillary ceramic plate
It is trapped within above ceramic wafer, liquid is then passed through into gas-liquid and distributed because of the effect of vacuum pressure difference and the hydrophily of ceramic wafer
In device；Stirring is the rapid subsidence in order to exempt from material, clogging filtering micropore.
D. after separation of solid and liquid, the solid material of interception is formed into filter cake on ceramic wafer；
E. ceramic wafer is transferred to dry section, is worked at the same time by two vacuum pumps, be responsible for for one tightly adsorbing filter cake,
Another vacuum pump is responsible for draining the filter cake of attachment；Setting by vacuum pump is to reduce in filter cake well
Water content.
F. by after the moisture pump in filter cake, filter cake is scraped from ceramic wafer by scraper；
G. after filter cake being removed from ceramic wafer, ceramic wafer is moved to backwash area and is cleaned, and entire dewatering work is complete
At.
Preferably, the hopper in the step b is corrosion resistant stainless steel material.
Preferably, on the fixed base, the right side upper end of firm banking is fixedly installed with branch for the ceramic wafer rotational installation
Strut, the upper end of support rod are provided with limit clamping plate, scraper, the scraper are horizontally installed between the limit clamping plate of post upper
Right end and the upper end of support rod be provided with screw hole, be provided with fixing bolt by screw hole.By support rod fixed doctor, so that
The distance between scraper and ceramic wafer 1mm extend service life to prevent mechanical wear, pass through screw hole and fixing bolt pair
Scraper is fixed, and limit clamping plate is that scraper swings in order to prevent.
Preferably, the distance between the scraper and ceramic wafer are 1mm.
Preferably, the width of the scraper is equal to the distance between two pieces of limit clamping plates.
Preferably, the upper surface middle position of the ceramic wafer is fixedly installed with support column, and the interposition of support column installs
It is equipped with fixed groove, the front end of the scraper is provided with U-shaped card slot, and the two sides of the U-shaped card slot are horizontally disposed blade.Pass through
The setting of support column enables the right end of scraper firmly to block in fixed groove on the support columns, places the upper and lower of scraper
Shake, and the cooperation of U-shaped card slot and fixed groove, convenient for the installation and removal of scraper, the setting of blade is in order to which scraper more holds
Easily it is inserted into filter cake.
Preferably, the thickness of the fixed groove is equal to the thickness of scraper, and the length of scraper is equal to the radius of ceramic wafer.
The beneficial effects of the present invention are:
The present invention changes traditional two kinds of sides of vacuum belt filter and filter press filters pressing by the use of ceramic filter
Formula, occupied area is small, and the filter cake after filter not only can be transported directly, can also directly carry out mixing burning into boiler；Solves filter cake
Washy problem.Its power consumption simultaneously is less, and operation and maintenance cost is low, and equipment can be with longtime running, by scraper part
Design, so that the distance between scraper and ceramic wafer are always held at 1mm, to prevent mechanical wear, extends service life, together
When by the cooperation of screw hole and fixing bolt so that scraper convenient disassembly, entire invention clear thinking, can be good at optimizing coal
The filtering technique of gasification installation saves power supply and resource, reduces maintenance cost, and practicability is high.
Detailed description of the invention
Fig. 1 is ceramic wafer schematic front view of the invention；
Fig. 2 is blade construction schematic diagram of the invention；
Fig. 3 is support column schematic front view of the invention；
Appended drawing reference: 1- ceramic wafer；2- firm banking；3- support rod；4- scraper；5- limits clamping plate；6- screw hole；7- is fixed
Bolt；8- support column；9- fixed groove；10-U type card slot；11- blade.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained, and however, the following embodiments are merely preferred embodiments of the present invention, and not all.
Based on the implementation example in the implementation mode, those skilled in the art's obtained other realities without making creative work
Example is applied, protection scope of the present invention is belonged to.Experimental method in following embodiments is unless otherwise specified conventional method,
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1
A kind of cake dewatering method for new type coal gasification, includes the following steps:
A. take a ceramic filter, ceramic wafer inner cavity evacuated, inside cavity is made to be in vacuum state, inside cavity with
Outside generates draught head；
B. material is placed in the hopper of ceramic wafer upper end, material is adsorbed on ceramic wafer under the action of negative pressure；
C. the material solidliquid mixture in hopper is stirred always with stirring rod, solid material is because that cannot pass through capillary ceramic plate
It is trapped within above ceramic wafer, liquid is then passed through into gas-liquid and distributed because of the effect of vacuum pressure difference and the hydrophily of ceramic wafer
In device；
D. after separation of solid and liquid, the solid material of interception is formed into filter cake on ceramic wafer；
E. ceramic wafer is transferred to dry section, is worked at the same time by two vacuum pumps, be responsible for for one tightly adsorbing filter cake,
Another vacuum pump is responsible for draining the filter cake of attachment；
F. by after the moisture pump in filter cake, filter cake is scraped from ceramic wafer by scraper；
G. after filter cake being removed from ceramic wafer, ceramic wafer is moved to backwash area and is cleaned, and entire dewatering work is complete
At.
Action principle of the ceramic filter work based on capillary micropore, uses micropore ceramics for filter medium, utilizes micropore
Ceramic a large amount of narrow solid-liquid separating equipments with the design of capillarity principle, the disk filter under negative pressure working condition,
Using its air-locked characteristic of unique water flowing of capillary ceramic plate, the generation of ceramic wafer inner cavity vacuum and external pressure difference are extracted, makes to expect
The material to suspend in slot is adsorbed on ceramic wafer under the action of negative pressure, and solid material by capillary ceramic plate because that cannot be trapped
In ceramic plate surface, and liquid is then passed through because of the effect of vacuum pressure difference and the hydrophily of ceramic wafer into gas liquid dispensing equipment
(vacuum barrel) outlet or recycle has achieved the purpose that be separated by solid-liquid separation.
Embodiment 2
As shown in Figure 1-3, a kind of cake dewatering method for new type coal gasification, includes the following steps:
A. take a ceramic filter, ceramic wafer inner cavity evacuated, inside cavity is made to be in vacuum state, inside cavity with
Outside generates draught head；
B. material is placed in the hopper of ceramic wafer upper end, material is adsorbed on ceramic wafer under the action of negative pressure；
C. the material solidliquid mixture in hopper is stirred always with stirring rod, solid material is because that cannot pass through capillary ceramic plate
It is trapped within above ceramic wafer, liquid is then passed through into gas-liquid and distributed because of the effect of vacuum pressure difference and the hydrophily of ceramic wafer
In device；
D. after separation of solid and liquid, the solid material of interception is formed into filter cake on ceramic wafer；
E. ceramic wafer is transferred to dry section, is worked at the same time by two vacuum pumps, be responsible for for one tightly adsorbing filter cake,
Another vacuum pump is responsible for draining the filter cake of attachment；
F. by after the moisture pump in filter cake, filter cake is scraped from ceramic wafer by scraper；
G. after filter cake being removed from ceramic wafer, ceramic wafer is moved to backwash area and is cleaned, and entire dewatering work is complete
At.
Ceramic wafer 1 is rotatably installed on firm banking 2, and the right side upper end of firm banking 2 is fixedly installed with support rod 3, branch
The upper end of strut 3 is provided with limit clamping plate 5, is horizontally installed with scraper 4, the right side of scraper 4 between the limit clamping plate 5 of 3 upper end of support rod
End and the upper end of support rod 3 are provided with screw hole 6, and fixing bolt 7 is provided with by screw hole 6.
The upper surface middle position of ceramic wafer 1 is fixedly installed with support column 8, and the middle position of support column 8 is provided with fixation
Groove 9, the front end of scraper 4 are provided with U-shaped card slot 10, and the two sides of U-shaped card slot 10 are horizontally disposed blade 11.
After moisture pump in filter cake, by the lower end of the left end insertion filter cake of scraper 4, until U-shaped card slot 10 and support
Fixed groove 9 on column 8 combines, and is then placed on the right end of scraper 4 between the limit clamping plate 5 of 3 upper end of support rod, will consolidate
Determine bolt 7 to be tightened in screw hole 6, ceramic wafer 1 is then allowed to rotate, scraper just removes filter cake from 1 upper surface of ceramic wafer, this mistake
Scraper 4 keeps certain distance with ceramic wafer 1 always in journey, after removing filter cake, ceramic wafer is moved to backwash area and is cleaned.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (7)
1. a kind of cake dewatering method and device for new type coal gasification, characterized by the following steps:
A. a ceramic filter is taken, ceramic wafer inner cavity is evacuated, inside cavity is made to be in vacuum state, inside cavity and outside
Generate draught head；
B. material is placed in the hopper of ceramic wafer upper end, material is adsorbed on ceramic wafer under the action of negative pressure；
C. the material solidliquid mixture in hopper is stirred always with stirring rod, solid material by capillary ceramic plate because that cannot be cut
It stays in above ceramic wafer, liquid is then passed through because of the effect of vacuum pressure difference and the hydrophily of ceramic wafer into gas liquid dispensing equipment
In；
D. after separation of solid and liquid, the solid material of interception is formed into filter cake on ceramic wafer；
E. ceramic wafer is transferred to dry section, is worked at the same time by two vacuum pumps, be responsible for for one tightly adsorbing filter cake, it is another
Platform vacuum pump is responsible for draining the filter cake of attachment；
F. by after the moisture pump in filter cake, filter cake is scraped from ceramic wafer by scraper；
G. after filter cake being removed from ceramic wafer, ceramic wafer is moved to backwash area and is cleaned, and entire dewatering work is completed.
2. a kind of cake dewatering method for new type coal gasification according to claim 1, it is characterised in that: the step
Hopper in b is corrosion resistant stainless steel material.
3. a kind of cake dewatering device for new type coal gasification, it is characterised in that: including ceramic wafer (1), the ceramic wafer (1)
It is rotatably installed on firm banking (2), the right side upper end of firm banking (2) is fixedly installed with support rod (3), support rod (3)
Upper end is provided with limit clamping plate (5), is horizontally installed with scraper (4), the scraper between the limit clamping plate (5) of support rod (3) upper end
(4) upper end of right end and support rod (3) is provided with screw hole (6), is provided with fixing bolt (7) by screw hole (6).
4. a kind of cake dewatering device for new type coal gasification according to claim 3, it is characterised in that: the scraper
It (4) is 1mm with the distance between ceramic wafer (1).
5. a kind of cake dewatering device for new type coal gasification according to claim 3, it is characterised in that: the scraper
(4) width is equal to the distance between two pieces of limit clamping plates (5).
6. a kind of cake dewatering device for new type coal gasification according to claim 3, it is characterised in that: the ceramics
The upper surface middle position of plate (1) is fixedly installed with support column (8), and the middle position of support column (8) is provided with fixed groove
(9), the front end of the scraper (4) is provided with U-shaped card slot (10), and the two sides of the U-shaped card slot (10) are horizontally disposed blade
(11)。
7. a kind of a kind of cake dewatering device for new type coal gasification as claimed in claim 6, it is characterised in that: the fixation
The thickness of groove (9) is equal to the thickness of scraper (4), and the length of scraper (4) is equal to the radius of ceramic wafer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811554182.1A CN109771999A (en) | 2018-12-19 | 2018-12-19 | A kind of cake dewatering method and device for new type coal gasification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811554182.1A CN109771999A (en) | 2018-12-19 | 2018-12-19 | A kind of cake dewatering method and device for new type coal gasification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109771999A true CN109771999A (en) | 2019-05-21 |
Family
ID=66497295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811554182.1A Pending CN109771999A (en) | 2018-12-19 | 2018-12-19 | A kind of cake dewatering method and device for new type coal gasification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109771999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194334A (en) * | 2020-09-25 | 2021-01-08 | 南京工业大学 | Method for dehydrating materialized sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5891347A (en) * | 1996-01-17 | 1999-04-06 | Matsumoto Machine Mfg. Co., Ltd. | Centrifugal filtration method and apparatus therefor |
| WO2014191634A1 (en) * | 2013-05-31 | 2014-12-04 | Outotec (Finland) Oy | Filter element and a method for manufacturing a filter element |
| CN104667612A (en) * | 2015-03-09 | 2015-06-03 | 苏州洛特兰新材料科技有限公司 | Novel ceramic filter device |
| CN205965248U (en) * | 2016-08-11 | 2017-02-22 | 丹东丹银矿冶有限责任公司 | Ceramic -medium filter scraper device |
| CN207493294U (en) * | 2017-10-23 | 2018-06-15 | 河南金谷轩柴窑绞胎瓷业有限公司 | A kind of improved ceramic filter scraper |
| CN108579179A (en) * | 2018-07-03 | 2018-09-28 | 葫芦岛八家矿业股份有限公司 | A kind of ceramic filter scraper |
| CN210645311U (en) * | 2018-12-19 | 2020-06-02 | 安徽昊源化工集团有限公司 | A filter cake dehydration device for novel coal gasification |
-
2018
- 2018-12-19 CN CN201811554182.1A patent/CN109771999A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5891347A (en) * | 1996-01-17 | 1999-04-06 | Matsumoto Machine Mfg. Co., Ltd. | Centrifugal filtration method and apparatus therefor |
| WO2014191634A1 (en) * | 2013-05-31 | 2014-12-04 | Outotec (Finland) Oy | Filter element and a method for manufacturing a filter element |
| CN104667612A (en) * | 2015-03-09 | 2015-06-03 | 苏州洛特兰新材料科技有限公司 | Novel ceramic filter device |
| CN205965248U (en) * | 2016-08-11 | 2017-02-22 | 丹东丹银矿冶有限责任公司 | Ceramic -medium filter scraper device |
| CN207493294U (en) * | 2017-10-23 | 2018-06-15 | 河南金谷轩柴窑绞胎瓷业有限公司 | A kind of improved ceramic filter scraper |
| CN108579179A (en) * | 2018-07-03 | 2018-09-28 | 葫芦岛八家矿业股份有限公司 | A kind of ceramic filter scraper |
| CN210645311U (en) * | 2018-12-19 | 2020-06-02 | 安徽昊源化工集团有限公司 | A filter cake dehydration device for novel coal gasification |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194334A (en) * | 2020-09-25 | 2021-01-08 | 南京工业大学 | Method for dehydrating materialized sludge |
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