CN101838044A - Method and device for eliminating foam Lurgi furnance coal gas wastewater treatment process - Google Patents
Method and device for eliminating foam Lurgi furnance coal gas wastewater treatment process Download PDFInfo
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- CN101838044A CN101838044A CN201010125959A CN201010125959A CN101838044A CN 101838044 A CN101838044 A CN 101838044A CN 201010125959 A CN201010125959 A CN 201010125959A CN 201010125959 A CN201010125959 A CN 201010125959A CN 101838044 A CN101838044 A CN 101838044A
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- 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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a method and a device for eliminating foam in Lurgi furnance coal gas wastewater treatment process, relating to a method and a device for eliminating foam in coal gas wastewater treatment, and solving the problems of serious foams, large defoaming water consumption, high operation cost and the influence on system normal operation. The method one of the invention adopts treated wastewater in a sedimentation basin or in a water clear pond as a defoaming water source; the method two of the invention adopts the mixture of treated wastewater and sewage treatment defoamer as the defoaming water source; the two methods of the invention set defoaming strength, service area of a water distributing device, pressure and distribution condition of the water distributing device according to defoaming characteristics in the Lurgi furnance coal gas wastewater aerobic biochemical treatment process. A water pump adopted in method one is placed in the sedimentation basin or in the water clear pond; and the water pump adopted in the method two is placed in a dedicated defoaming pond. The invention is suitable for defoaming industrial wastewater treatment field in coal gas wastewater treatment process.
Description
Technical field
The present invention relates to eliminate foamy method and device in a kind of gas maked coal wastewater treatment process, belong to the Industrial Wastewater Treatment field.
Background technology
At present, because China is faced with the severe problem of Sweet natural gas shortage, make coal preparing natural gas technology obtain very big performance space.Though technology such as Shell dried coal powder, the strange broken coal fixed bed in Shandong are comparative maturity.But, methane content and investment cost equal angles from the coal preparing natural gas, lurgi gasifier occupies an important position in coal preparing natural gas field.But the waste water that produces in the lurgi coal gasification gas process is a kind of poisonous and harmful of typical high density and is difficult to biodegradable trade effluent that not only the water yield is up to several thousand to several ten thousand m
3/ d, and contain hazardous and noxious substances such as a large amount of phenols, alkanes, arene, heterocyclic, ammonia nitrogen and cyanogen in the waste water that is produced.In addition, contain the organism of various chromophores and auxochromous group in the coal chemical industrial waste water, described organism has colourity and the very high characteristics of turbidity.Therefore, lurgi coal gasification gas waste water handling problem has become the bottleneck of restriction Coal Chemical Industry industry development.
The processing of lurgi coal gasification gas waste water is a great problem of domestic and international field of waste water treatment always.At present, the treatment technology of lurgi coal gasification gas waste water is mainly based on aerobe technology.In the coal gasification waste water treating processes, this technology has removal effect preferably to ammonia nitrogen and organism, but the problem that this technology often runs into has a large amount of foams to produce exactly in operational process, influence the normal operation of waste water treatment process, and caused running cost and labour intensity to rise significantly.Therefore, generally all can consider the froth breaking problem in the treatment process of lurgi coal gasification gas waste water, common debubbling method has the sewage treating and de-foaming agent froth breaking of use or external water source to spray froth breaking.Though the defoaming effect of sewage treating and de-foaming agent is fine, can cause Waste Water Treatment operation burden and running cost very high; External water source froth breaking water loss is huge, and can influence the normal operation of Waste Water Treatment.
Summary of the invention
The purpose of this invention is to provide and eliminate foamy method and device in a kind of lurgi coal gasification gas wastewater treatment process, foam is serious in the existing lurgi coal gasification gas wastewater treatment process, the froth breaking water loss is big, running cost is high and the normal problem of moving of the system that influences to solve.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
Eliminating foamy method one in the lurgi coal gasification gas wastewater treatment process of the present invention finishes like this:
Step 1: settling tank in the employing Waste Water Treatment or the waste water of processing in the clean water basin are as the froth breaking water source;
Step 2: extract the froth breaking water source in settling tank or the clean water basin and deliver in the froth breaking water distribution pipe network that sets up the Aerobic Pond top by water pump;
Step 3: the froth breaking water source sprays the foam in the Aerobic Pond in froth breaking water distribution pipe network is delivered to the water distribution short tube of locating in each froth breaking hole and by each water distributor, regulate the water spray pressure of corresponding water distributor simultaneously by the regulated valve on each water distribution short tube, the front end of Aerobic Pond is the froth breaking enhancement region, the froth breaking enhancement region accounts for the 20-40% of Aerobic Pond total length, and the froth breaking intensity of each water distributor of froth breaking enhancement region is 2-10L/minm
2, the service area of each water distributor of froth breaking enhancement region is 5-15m
2, the design pressure of each water distributor of froth breaking enhancement region is 0.01-0.1MPa, the spacing of adjacent two water distributors of froth breaking enhancement region is 1.5-5m; The rear end of Aerobic Pond is normal froth breaking district, and normal froth breaking district accounts for the 60-80% of Aerobic Pond total length, and the froth breaking intensity of each water distributor in normal froth breaking district is 0.5-5L/minm
2, the service area of each water distributor in normal froth breaking district is 10-25m
2, the design pressure of each water distributor in normal froth breaking district is 0.01-0.1MPa, the spacing of adjacent two water distributors in normal froth breaking district is 1.5-5m.
The present invention is used for realizing that the type defoaming device of lurgi coal gasification gas wastewater treatment process elimination foamy method one comprises water pump, the water inlet total valve, water inlet pipe, froth breaking water distribution pipe network, a plurality of water distribution short tubes, a plurality of regulated valves and a plurality of water distributor, all have a plurality of froth breakings hole on each water distribution branch pipe of described froth breaking water distribution pipe network, each place, froth breaking hole is installed with a water distribution short tube, the lower end of each water distribution short tube all is equipped with a water distributor, a regulated valve all is installed on each water distribution short tube, the water distribution of described froth breaking water distribution pipe network is responsible for and is communicated with water pump by water inlet pipe, water pump places settling tank or clean water basin inside, and described water inlet total valve is installed on the water inlet pipe.
Eliminating the foamy method two in the lurgi coal gasification gas wastewater treatment process of the present invention finishes like this:
Step 1: the waste water of processing in settling tank in the Waste Water Treatment or the clean water basin is imported in the special-purpose froth breaking pond;
Step 2: in special-purpose froth breaking pond, add the sewage treating and de-foaming agent, the sewage treating and de-foaming agent with handle waste water and mix, sewage treating and de-foaming agent and handle waste water blended mass ratio and be as the froth breaking water source: (1～40): 200;
Step 3: extract the froth breaking water source in the special-purpose froth breaking pond and deliver in the froth breaking water distribution pipe network that Aerobic Pond top sets up by water pump;
Step 4: the froth breaking water source sprays the foam in the Aerobic Pond in froth breaking water distribution pipe network is delivered to the water distribution short tube of locating in each froth breaking hole and by each water distributor, regulate the water spray pressure of corresponding water distributor simultaneously by the regulated valve on each water distribution short tube, the front end of Aerobic Pond is the froth breaking enhancement region, the froth breaking enhancement region accounts for the 20-40% of Aerobic Pond total length, and the froth breaking intensity of each water distributor of froth breaking enhancement region is 2-10L/minm
2, the service area of each water distributor of froth breaking enhancement region is 5-15m
2, the design pressure of each water distributor of froth breaking enhancement region is 0.01-0.1MPa, the spacing of adjacent two water distributors of froth breaking enhancement region is 1.5-5m; The rear end of Aerobic Pond is normal froth breaking district, and normal froth breaking district accounts for the 60-80% of Aerobic Pond total length, and the froth breaking intensity of each water distributor in normal froth breaking district is 0.5-5L/minm
2, the service area of each water distributor in normal froth breaking district is 10-25m
2, the design pressure of each water distributor in normal froth breaking district is 0.01-0.1MPa, the spacing of adjacent two water distributors in normal froth breaking district is 1.5-5m.
The present invention is used for realizing that the type defoaming device of lurgi coal gasification gas wastewater treatment process elimination foamy method two comprises special-purpose froth breaking pond, water pump, the water inlet total valve, water inlet pipe, froth breaking water distribution pipe network, a plurality of water distribution short tubes, a plurality of regulated valves and a plurality of water distributor, all have a plurality of froth breakings hole on each water distribution branch pipe of described froth breaking water distribution pipe network, each place, froth breaking hole is installed with a water distribution short tube, the lower end of each water distribution short tube all is equipped with a water distributor, a regulated valve all is installed on each water distribution short tube, the water distribution of described froth breaking water distribution pipe network is responsible for and is communicated with water pump by water inlet pipe, described water inlet total valve is installed on the water inlet pipe, and water pump places inside, special-purpose froth breaking pond.
The present invention compared with prior art has following effect: the froth breaking water source in the inventive method one adopts settling tank or the interior waste water of processing of clean water basin in the Waste Water Treatment, adopt in the inventive method two and handled waste water and mix as the froth breaking water source with the sewage treating and de-foaming agent, two kinds of methods of the present invention are set froth breaking intensity, the service area of water distributor, pressure and water distributor distribution situation according to the characteristics that foam in the lurgi coal gasification gas waste water aerobic biochemical treatment process takes place.Foam is serious in the lurgi coal gasification gas waste water aerobic biochemical treatment process, the froth breaking water loss is big, running cost is high and the normal problem of moving of the system that influences.Advantage of the present invention be that water saving, foam layer are low and not excessive, running cost is low and froth breaking after system stable.Type defoaming device of the present invention has advantage simple in structure and easy handling control.
Description of drawings
Fig. 1 is that the master of elimination foamy device one of the present invention looks synoptic diagram, Fig. 2 is the vertical view (the froth breaking water distribution pipe network 8 among the figure is the branched network structure) that the present invention eliminates foamy device one, Fig. 3 is the vertical view (the froth breaking water distribution pipe network 8 among the figure is the circulation pipe network structure) that the present invention eliminates foamy device one, Fig. 4 is that the master of elimination foamy device two of the present invention looks synoptic diagram, Fig. 5 is the vertical view (the froth breaking water distribution pipe network 8 among the figure is the branched network structure) that the present invention eliminates foamy device two, and Fig. 6 is the vertical view (the froth breaking water distribution pipe network 8 among the figure is the circulation pipe network structure) that the present invention eliminates foamy device two.
Embodiment
Embodiment one: in conjunction with Fig. 1-Fig. 3 present embodiment is described, eliminates foamy method one in the lurgi coal gasification gas wastewater treatment process of present embodiment and finish like this:
Step 1: settling tank in the employing Waste Water Treatment or the waste water of processing in the clean water basin 5 are as the froth breaking water source;
Step 2: extract the froth breaking water source in settling tanks or the clean water basin 5 and deliver in the froth breaking water distribution pipe network 8 that sets up Aerobic Pond 2 tops by water pump 6;
Step 3: the froth breaking water source sprays in froth breaking water distribution pipe network 8 is delivered to the water distribution short tube 9 at each 8-1 place, froth breaking hole and by the foam in 11 pairs of Aerobic Ponds 2 of each water distributor, regulate the water spray pressure of corresponding water distributor 11 simultaneously by the regulated valve on each water distribution short tube 9 10, the front end of Aerobic Pond 2 is the froth breaking enhancement region, the froth breaking enhancement region accounts for the 20-40% of Aerobic Pond 2 total lengths, and the froth breaking intensity of each water distributor 11 of froth breaking enhancement region is 2-10L/minm
2, the service area of each water distributor 11 of froth breaking enhancement region is 5-15m
2, the design pressure of each water distributor 11 of froth breaking enhancement region is 0.01-0.1MPa, the spacing of adjacent two water distributors 11 of froth breaking enhancement region is 1.5-5m; The rear end of Aerobic Pond 2 is normal froth breaking district, and normal froth breaking district accounts for the 60-80% of Aerobic Pond 2 total lengths, and the froth breaking intensity of each water distributor 11 in normal froth breaking district is 0.5-5L/minm
2, the service area of each water distributor 11 in normal froth breaking district is 10-25m
2, the design pressure of each water distributor 11 in normal froth breaking district is 0.01-0.1MPa, the spacing of adjacent two water distributors 11 in normal froth breaking district is 1.5-5m.
Embodiment two: what present embodiment and embodiment one were different is: the froth breaking intensity of each water distributor 11 of the froth breaking enhancement region in the step 3 is 2-4L/minm
2, the froth breaking intensity of each water distributor 11 in normal froth breaking district is 0.5-2L/minm
2So design, defoaming effect is better.
Embodiment three: what present embodiment and embodiment one were different is: the froth breaking intensity of each water distributor 11 of the froth breaking enhancement region in the step 3 is 4-6L/minm
2, the froth breaking intensity of each water distributor 11 in normal froth breaking district is 2-3L/minm
2So design, defoaming effect is better.
Embodiment four: what present embodiment and embodiment one were different is: the froth breaking intensity of each water distributor 11 of the froth breaking enhancement region in the step 3 is 6-10L/minm
2, the froth breaking intensity of each water distributor 11 in normal froth breaking district is 3-5L/minm
2So design, defoaming effect is better.
Embodiment five: what present embodiment and embodiment one, two, three or four were different is: the service area of each water distributor 11 of the froth breaking enhancement region in the step 3 is 5-10m
2, the service area of each water distributor 11 in normal froth breaking district is 10-15m
2So design, defoaming effect is better.
Embodiment six: what present embodiment and embodiment one, two, three or four were different is: the service area of each water distributor 11 of the froth breaking enhancement region in the step 3 is 10-15m
2, the service area of each water distributor 11 in normal froth breaking district is 15-25m
2So design, defoaming effect is better.
Embodiment seven: what present embodiment and embodiment one, two, three, four, five or six were different is: the design pressure of each water distributor 11 of the froth breaking enhancement region in the step 3 is 0.01-0.05MPa, and the design pressure of each water distributor 11 in normal froth breaking district is 0.01-0.05MPa.So design, defoaming effect is better.
Embodiment eight: what present embodiment and embodiment one, two, three, four, five or six were different is: the design pressure of each water distributor 11 of the froth breaking enhancement region in the step 3 is 0.05-0.1MPa, and the design pressure of each water distributor 11 in normal froth breaking district is 0.05-0.1MPa.So design, defoaming effect is better.
Embodiment nine: what present embodiment and embodiment one, two, three, four, five, six, seven or eight were different is: the spacing of adjacent two water distributors 11 of the froth breaking enhancement region in the step 3 is 1.5-3m, and the spacing of adjacent two water distributors 11 in normal froth breaking district is 1.5-3m.So design, defoaming effect is better.
Embodiment ten: what present embodiment and embodiment one, two, three, four, five, six, seven or eight were different is: the spacing of adjacent two water distributors 11 of the froth breaking enhancement region in the step 3 is 3-5m, and the spacing of adjacent two water distributors 11 in normal froth breaking district is 3-5m.So design, defoaming effect is better.
Embodiment 11: present embodiment is described in conjunction with Fig. 1-Fig. 3, eliminate the foamy device in the lurgi coal gasification gas wastewater treatment process of present embodiment and comprise water pump 6, water inlet total valve 7, water inlet pipe 16, froth breaking water distribution pipe network 8, a plurality of water distribution short tubes 9, a plurality of regulated valves 10 and a plurality of water distributor 11, all have a plurality of froth breakings hole 8-1 on each water distribution branch pipe 8-3 of described froth breaking water distribution pipe network 8, each 8-1 place, froth breaking hole is installed with a water distribution short tube 9, the lower end of each water distribution short tube 9 all is equipped with a water distributor 11, a regulated valve 10 all is installed on each water distribution short tube 9, the water distribution of described froth breaking water distribution pipe network 8 is responsible for 8-2 and is communicated with water pump 6 by water inlet pipe 16, water pump 6 places settling tank or clean water basin 5 inside, and described water inlet total valve 7 is installed on the water inlet pipe 16.The elimination foamy device of present embodiment is used for realizing eliminating the foamy method in the lurgi coal gasification gas wastewater treatment process of embodiment one.
Embodiment 12: in conjunction with Fig. 1 present embodiment is described, the water distributor 11 of present embodiment is spiral water distributor.So be provided with, the water distributor service area is big.Other composition is identical with embodiment 11 with annexation.
Embodiment 13: present embodiment is described in conjunction with Fig. 2, the froth breaking water distribution pipe network 8 of present embodiment is responsible for 8-2 by water distribution and a plurality of water distribution branch pipe 8-3 forms, described a plurality of water distribution branch pipe 8-3 be arranged in parallel, described water distribution is responsible for 8-2 and is communicated with the end of a plurality of water distribution branch pipe 8-3, and water distribution is responsible for 8-2 and a plurality of water distribution branch pipe 8-3 forms branched network, and the other end of a plurality of water distribution branch pipe 8-3 seals.So design can be saved tubing and executive cost.Other composition is identical with embodiment 11 or 12 with annexation.
Embodiment 14: present embodiment is described in conjunction with Fig. 3, the froth breaking water distribution pipe network 8 of present embodiment is responsible for 8-2, a plurality of water distribution branch pipe 8-3 by water distribution and water distribution communicating pipe 8-4 forms, described a plurality of water distribution branch pipe 8-3 be arranged in parallel, described water distribution is responsible for 8-2 and is communicated with the end of a plurality of water distribution branch pipe 8-3, described water distribution communicating pipe 8-4 is communicated with the other end of a plurality of water distribution branch pipe 8-3, and water distribution is responsible for 8-2, a plurality of water distribution branch pipe 8-3 and water distribution communicating pipe 8-4 forms circulation pipe network.So design, can guarantee the waterpower reliability of pipe network.Other composition is identical with embodiment 11 or 12 with annexation.
Embodiment 15: present embodiment is described in conjunction with Fig. 1, eliminate the foamy device in the lurgi coal gasification gas wastewater treatment process of present embodiment and also comprise blow-down pipe 1 and blow-off valve 12, the upper end of described blow-down pipe 1 is communicated with any one water distribution branch pipe 8-3 in the froth breaking water distribution pipe network 8, and described blow-off valve 12 is installed on the blow-down pipe 1.So design has guaranteed the smooth running in the winter time of this device, avoids occurring freezing problem.Other composition is identical with embodiment 11,12,13 or 14 with annexation.
Embodiment 16: in conjunction with Fig. 4-Fig. 6 present embodiment is described, eliminates the foamy method two in the lurgi coal gasification gas wastewater treatment process of present embodiment and finish like this:
Step 1: the waste water of processing in settling tank in the Waste Water Treatment or the clean water basin 5 is imported in the special-purpose froth breaking pond 14;
Step 2: in special-purpose froth breaking pond 14, add the sewage treating and de-foaming agent, the sewage treating and de-foaming agent with handle waste water and mix, sewage treating and de-foaming agent and handle waste water blended mass ratio and be as the froth breaking water source: (1～40): 200;
Step 3: extract the froth breaking water source in the special-purpose froth breaking pond 14 and deliver in the froth breaking water distribution pipe network 8 that sets up Aerobic Pond 2 tops by water pump 6;
Step 4: the froth breaking water source sprays in froth breaking water distribution pipe network 8 is delivered to the water distribution short tube 9 at each 8-1 place, froth breaking hole and by the foam in 11 pairs of Aerobic Ponds 2 of each water distributor, regulate the water spray pressure of corresponding water distributor 11 simultaneously by the regulated valve on each water distribution short tube 9 10, the front end of Aerobic Pond 2 is the froth breaking enhancement region, the froth breaking enhancement region accounts for the 20-40% of Aerobic Pond 2 total lengths, and the froth breaking intensity of each water distributor 11 of froth breaking enhancement region is 2-10L/minm
2, the service area of each water distributor 11 of froth breaking enhancement region is 5-15m
2, the design pressure of each water distributor 11 of froth breaking enhancement region is 0.01-0.1MPa, the spacing of adjacent two water distributors 11 of froth breaking enhancement region is 1.5-5m; The rear end of Aerobic Pond 2 is normal froth breaking district, and normal froth breaking district accounts for the 60-80% of Aerobic Pond 2 total lengths, and the froth breaking intensity of each water distributor 11 in normal froth breaking district is 0.5-5L/minm
2, the service area of each water distributor 11 in normal froth breaking district is 10-25m
2, the design pressure of each water distributor 11 in normal froth breaking district is 0.01-0.1MPa, the spacing of adjacent two water distributors 11 in normal froth breaking district is 1.5-5m.
The model of the sewage treating and de-foaming agent of present embodiment is L-105, JY-805, XC-25 or HZX-203.
Embodiment 17: what present embodiment and embodiment 16 were different is: the sewage treating and de-foaming agent in the step 3 with handle waste water blended mass ratio and be: 20: 200.So design, defoaming effect is better.
Embodiment 18: what present embodiment was different with embodiment 16 or 17 is: the service area of each water distributor 11 of the froth breaking enhancement region in the step 3 is 5-10m
2, the service area of each water distributor 11 in normal froth breaking district is 10-15m
2So design, defoaming effect is better.
Embodiment 19: what present embodiment was different with embodiment 16 or 17 is: the service area of each water distributor 11 of the froth breaking enhancement region in the step 3 is 10-15m
2, the service area of each water distributor 11 in normal froth breaking district is 15-25m
2So design, defoaming effect is better.
Embodiment 20: what present embodiment and embodiment 16,17,18 or 19 were different is: the design pressure of each water distributor 11 of the froth breaking enhancement region in the step 3 is 0.01-0.05MPa, and the design pressure of each water distributor 11 in normal froth breaking district is 0.01-0.05MPa.So design, defoaming effect is better.
Embodiment 21: what present embodiment and embodiment 16,17,18 or 19 were different is: the design pressure of each water distributor 11 of the froth breaking enhancement region in the step 3 is 0.05-0.1MPa, and the design pressure of each water distributor 11 in normal froth breaking district is 0.05-0.1MPa.So design, defoaming effect is better.
Embodiment 22: what present embodiment and embodiment 16,17,18,19,20 or 21 were different is: the spacing of adjacent two water distributors 11 of the froth breaking enhancement region in the step 3 is 1.5-3m, and the spacing of adjacent two water distributors 11 in normal froth breaking district is 1.5-3m.So design, defoaming effect is better.
Embodiment 23: what present embodiment and embodiment 16,17,18,19,20 or 21 were different is: the spacing of adjacent two water distributors 11 of the froth breaking enhancement region in the step 3 is 3-5m, and the spacing of adjacent two water distributors 11 in normal froth breaking district is 3-5m.So design, defoaming effect is better.
Embodiment 24: present embodiment is described in conjunction with Fig. 4-Fig. 6, eliminate the foamy device in the lurgi coal gasification gas wastewater treatment process of present embodiment and comprise special-purpose froth breaking pond 14, water pump 6, water inlet total valve 7, water inlet pipe 16, froth breaking water distribution pipe network 8, a plurality of water distribution short tubes 9, a plurality of regulated valves 10 and a plurality of water distributor 11, all have a plurality of froth breakings hole 8-1 on each water distribution branch pipe 8-3 of described froth breaking water distribution pipe network 8, each 8-1 place, froth breaking hole is installed with a water distribution short tube 9, the lower end of each water distribution short tube 9 all is equipped with a water distributor 11, a regulated valve 10 all is installed on each water distribution short tube 9, the water distribution of described froth breaking water distribution pipe network 8 is responsible for 8-2 and is communicated with water pump 6 by water inlet pipe 16, described water inlet total valve 7 is installed on the water inlet pipe 16, and water pump 6 places 14 inside, special-purpose froth breaking pond.The elimination foamy device of present embodiment is used for realizing eliminating the foamy method in the lurgi coal gasification gas wastewater treatment process of embodiment 16.
Embodiment 25: in conjunction with Fig. 4 present embodiment is described, the water distributor 11 of present embodiment is spiral water distributor.So design, the water distributor service area is big.Other composition is identical with embodiment 24 with annexation.
Embodiment 26: present embodiment is described in conjunction with Fig. 5, the froth breaking water distribution pipe network 8 of present embodiment is responsible for 8-2 by water distribution and a plurality of water distribution branch pipe 8-3 forms, described a plurality of water distribution branch pipe 8-3 be arranged in parallel, described water distribution is responsible for 8-2 and is communicated with the end of a plurality of water distribution branch pipe 8-3, and water distribution is responsible for 8-2 and a plurality of water distribution branch pipe 8-3 forms branched network, and the other end of a plurality of water distribution branch pipe 8-3 seals.So design can be saved tubing and executive cost.Other composition is identical with embodiment 24 or 25 with annexation.
Embodiment 27: present embodiment is described in conjunction with Fig. 6, the froth breaking water distribution pipe network 8 of present embodiment is responsible for 8-2, a plurality of water distribution branch pipe 8-3 by water distribution and water distribution communicating pipe 8-4 forms, described a plurality of water distribution branch pipe 8-3 be arranged in parallel, described water distribution is responsible for 8-2 and is communicated with the end of a plurality of water distribution branch pipe 8-3, described water distribution communicating pipe 8-4 is communicated with the other end of a plurality of water distribution branch pipe 8-3, and water distribution is responsible for 8-2, a plurality of water distribution branch pipe 8-3 and water distribution communicating pipe 8-4 forms circulation pipe network.So design, can guarantee the waterpower reliability of pipe network.Other composition is identical with embodiment 24 or 25 with annexation.
Embodiment 28: present embodiment is described in conjunction with Fig. 4, eliminate the foamy device in the lurgi coal gasification gas wastewater treatment process of present embodiment and also comprise blow-down pipe 1 and blow-off valve 12, the upper end of described blow-down pipe 1 is communicated with any one water distribution branch pipe 8-3 in the froth breaking water distribution pipe network 8, and described blow-off valve 12 is installed on the blow-down pipe 1.So design has guaranteed the smooth running in the winter time of this device, avoids occurring freezing problem.Other composition is identical with embodiment 24,25,26 or 27 with annexation.
Claims (10)
1. eliminate the foamy method in a lurgi coal gasification gas wastewater treatment process, it is characterized in that: this method is finished like this:
Step 1: settling tank in the employing Waste Water Treatment or the waste water of processing in the clean water basin (5) are as the froth breaking water source;
Step 2: extract the froth breaking water source in settling tank or the clean water basin (5) and deliver in the froth breaking water distribution pipe network (8) that sets up Aerobic Pond (2) top by water pump (6);
Step 3: the froth breaking water source also sprays the foam in the Aerobic Pond (2) by each water distributor (11) in froth breaking water distribution pipe network (8) is delivered to the water distribution short tube of locating in each froth breaking hole (8-1) (9), regulate the water spray pressure of corresponding water distributor (11) simultaneously by the regulated valve (10) on each water distribution short tube (9), the front end of Aerobic Pond (2) is the froth breaking enhancement region, the froth breaking enhancement region accounts for the 20-40% of Aerobic Pond (2) total length, and the froth breaking intensity of each water distributor (11) of froth breaking enhancement region is 2-10L/minm
2, the service area of each water distributor (11) of froth breaking enhancement region is 5-15m
2, the design pressure of each water distributor (11) of froth breaking enhancement region is 0.01-0.1MPa, the spacing of adjacent two water distributors (11) of froth breaking enhancement region is 1.5-5m; The rear end of Aerobic Pond (2) is normal froth breaking district, and normal froth breaking district accounts for the 60-80% of Aerobic Pond (2) total length, and the froth breaking intensity of each water distributor (11) in normal froth breaking district is 0.5-5L/minm
2, the service area of each water distributor (11) in normal froth breaking district is 10-25m
2, the design pressure of each water distributor (11) in normal froth breaking district is 0.01-0.1MPa, the spacing of adjacent two water distributors (11) in normal froth breaking district is 1.5-5m.
2. eliminate the foamy device in the lurgi coal gasification gas wastewater treatment process of elimination foamy method in the described lurgi coal gasification gas wastewater treatment process of realization claim 1, this device comprises water pump (6), water inlet total valve (7), water inlet pipe (16), froth breaking water distribution pipe network (8), a plurality of water distribution short tubes (9), a plurality of regulated valves (10) and a plurality of water distributor (11), it is characterized in that: all have a plurality of froth breakings hole (8-1) on each water distribution branch pipe (8-3) of described froth breaking water distribution pipe network (8), a water distribution short tube (9) is located to be installed with in each froth breaking hole (8-1), the lower end of each water distribution short tube (9) all is equipped with a water distributor (11), on each water distribution short tube (9) regulated valve (10) is installed all, the water distribution of described froth breaking water distribution pipe network (8) is responsible for (8-2) and is communicated with water pump (6) by water inlet pipe (16), water pump (6) places settling tank or clean water basin (5) inside, and described water inlet total valve (7) is installed on the water inlet pipe (16).
3. according to eliminating the foamy device in the described lurgi coal gasification gas wastewater treatment process of claim 2, it is characterized in that: water distributor (11) is spiral water distributor.
4. according to eliminating the foamy device in the described lurgi coal gasification gas wastewater treatment process of claim 3, it is characterized in that: described froth breaking water distribution pipe network (8) is responsible for (8-2) by water distribution and a plurality of water distribution branch pipe (8-3) is formed, described a plurality of water distribution branch pipe (8-3) be arranged in parallel, described water distribution is responsible for (8-2) and is communicated with an end of a plurality of water distribution branch pipes (8-3), and water distribution is responsible for (8-2) and is formed branched network with a plurality of water distribution branch pipes (8-3), and the other end of a plurality of water distribution branch pipes (8-3) seals.
5. according to eliminating the foamy device in the described lurgi coal gasification gas wastewater treatment process of claim 3, it is characterized in that: described froth breaking water distribution pipe network (8) is responsible for (8-2) by water distribution, a plurality of water distribution branch pipes (8-3) and water distribution communicating pipe (8-4) are formed, described a plurality of water distribution branch pipe (8-3) be arranged in parallel, described water distribution is responsible for (8-2) and is communicated with an end of a plurality of water distribution branch pipes (8-3), described water distribution communicating pipe (8-4), the other end with a plurality of water distribution branch pipes (8-3) was communicated with, and water distribution is responsible for (8-2), a plurality of water distribution branch pipes (8-3) and water distribution communicating pipe (8-4) form circulation pipe network.
6. according to eliminating the foamy device in claim 2,3, the 4 or 5 described lurgi coal gasification gas wastewater treatment process, it is characterized in that: described elimination foamy device also comprises blow-down pipe (1) and blow-off valve (12), the upper end of described blow-down pipe (1) is communicated with any one water distribution branch pipe (8-3) in the froth breaking water distribution pipe network (8), and described blow-off valve (12) is installed on the blow-down pipe (1).
7. eliminate the foamy method in a lurgi coal gasification gas wastewater treatment process, it is characterized in that: this method is finished like this:
Step 1: the waste water of processing in settling tank in the Waste Water Treatment or the clean water basin (5) is imported in the special-purpose froth breaking pond (14);
Step 2: in special-purpose froth breaking pond (14), add the sewage treating and de-foaming agent, the sewage treating and de-foaming agent with handle waste water and mix, sewage treating and de-foaming agent and handle waste water blended mass ratio and be as the froth breaking water source: (1～40): 200;
Step 3: extract the froth breaking water source in the special-purpose froth breaking pond (14) and deliver in the froth breaking water distribution pipe network (8) that sets up Aerobic Pond (2) top by water pump (6);
Step 4: the froth breaking water source also sprays the foam in the Aerobic Pond (2) by each water distributor (11) in froth breaking water distribution pipe network (8) is delivered to the water distribution short tube of locating in each froth breaking hole (8-1) (9), regulate the water spray pressure of corresponding water distributor (11) simultaneously by the regulated valve (10) on each water distribution short tube (9), the front end of Aerobic Pond (2) is the froth breaking enhancement region, the froth breaking enhancement region accounts for the 20-40% of Aerobic Pond (2) total length, and the froth breaking intensity of each water distributor (11) of froth breaking enhancement region is 2-10L/minm
2, the service area of each water distributor (11) of froth breaking enhancement region is 5-15m
2, the design pressure of each water distributor (11) of froth breaking enhancement region is 0.01-0.1MPa, the spacing of adjacent two water distributors (11) of froth breaking enhancement region is 1.5-5m; The rear end of Aerobic Pond (2) is normal froth breaking district, and normal froth breaking district accounts for the 60-80% of Aerobic Pond (2) total length, and the froth breaking intensity of each water distributor (11) in normal froth breaking district is 0.5-5L/minm
2, the service area of each water distributor (11) in normal froth breaking district is 10-25m
2, the design pressure of each water distributor (11) in normal froth breaking district is 0.01-0.1MPa, the spacing of adjacent two water distributors (11) in normal froth breaking district is 1.5-5m.
8. eliminate the foamy device in the lurgi coal gasification gas wastewater treatment process of elimination foamy method in the described lurgi coal gasification gas wastewater treatment process of realization claim 7, this device comprises special-purpose froth breaking pond (14), water pump (6), water inlet total valve (7), water inlet pipe (16), froth breaking water distribution pipe network (8), a plurality of water distribution short tubes (9), a plurality of regulated valves (10) and a plurality of water distributor (11), it is characterized in that: all have a plurality of froth breakings hole (8-1) on each water distribution branch pipe (8-3) of described froth breaking water distribution pipe network (8), a water distribution short tube (9) is located to be installed with in each froth breaking hole (8-1), the lower end of each water distribution short tube (9) all is equipped with a water distributor (11), on each water distribution short tube (9) regulated valve (10) is installed all, the water distribution of described froth breaking water distribution pipe network (8) is responsible for (8-2) and is communicated with water pump (6) by water inlet pipe (16), described water inlet total valve (7) is installed on the water inlet pipe (16), and water pump (6) places inside, special-purpose froth breaking pond (14).
9. eliminate the foamy device in the described according to Claim 8 lurgi coal gasification gas wastewater treatment process, it is characterized in that: described froth breaking water distribution pipe network (8) is responsible for (8-2) by water distribution and a plurality of water distribution branch pipe (8-3) is formed, described a plurality of water distribution branch pipe (8-3) be arranged in parallel, described water distribution is responsible for (8-2) and is communicated with an end of a plurality of water distribution branch pipes (8-3), and water distribution is responsible for (8-2) and is formed branched network with a plurality of water distribution branch pipes (8-3), and the other end of a plurality of water distribution branch pipes (8-3) seals.
10. eliminate the foamy device in the described according to Claim 8 lurgi coal gasification gas wastewater treatment process, it is characterized in that: described froth breaking water distribution pipe network (8) is responsible for (8-2) by water distribution, a plurality of water distribution branch pipes (8-3) and water distribution communicating pipe (8-4) are formed, described a plurality of water distribution branch pipe (8-3) be arranged in parallel, described water distribution is responsible for (8-2) and is communicated with an end of a plurality of water distribution branch pipes (8-3), described water distribution communicating pipe (8-4), the other end with a plurality of water distribution branch pipes (8-3) was communicated with, and water distribution is responsible for (8-2), a plurality of water distribution branch pipes (8-3) and water distribution communicating pipe (8-4) form circulation pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010125959XA CN101838044B (en) | 2010-03-17 | 2010-03-17 | Method and device for eliminating foam of Lurgi furnance coal gas wastewater treatment process |
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| CN201010125959XA CN101838044B (en) | 2010-03-17 | 2010-03-17 | Method and device for eliminating foam of Lurgi furnance coal gas wastewater treatment process |
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| CN101838044A true CN101838044A (en) | 2010-09-22 |
| CN101838044B CN101838044B (en) | 2012-05-02 |
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| CN103613156A (en) * | 2013-12-19 | 2014-03-05 | 重庆市渝西水务有限公司 | Bubble removal system for contact tank water inlet corridors |
| CN103630663A (en) * | 2013-12-19 | 2014-03-12 | 重庆市渝西水务有限公司 | Method for improving detection accuracy of effluent index of contact tank |
| CN103645291A (en) * | 2013-12-19 | 2014-03-19 | 重庆市渝西水务有限公司 | Method for detecting water discharging index of contact tank |
| CN104069953A (en) * | 2013-03-29 | 2014-10-01 | 沈阳铝镁设计研究院有限公司 | Simple hydraulic defoaming device and method |
| CN104828963A (en) * | 2015-04-29 | 2015-08-12 | 四川和鼎环保工程有限责任公司 | Elevating defoaming aeration tank |
| CN105384206A (en) * | 2015-11-05 | 2016-03-09 | 东华工程科技股份有限公司 | Defoaming method of coal chemical-industrial wastewater |
| CN105999775A (en) * | 2016-07-25 | 2016-10-12 | 中国大唐集团科学技术研究院有限公司华东分公司 | Pretreatment adding device and method for defoamer in oil |
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| CN104069953A (en) * | 2013-03-29 | 2014-10-01 | 沈阳铝镁设计研究院有限公司 | Simple hydraulic defoaming device and method |
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| CN105999775A (en) * | 2016-07-25 | 2016-10-12 | 中国大唐集团科学技术研究院有限公司华东分公司 | Pretreatment adding device and method for defoamer in oil |
| CN105999775B (en) * | 2016-07-25 | 2017-11-17 | 中国大唐集团科学技术研究院有限公司华东分公司 | Defoamer pretreatment adding set and method in a kind of oil |
| CN114763274A (en) * | 2021-01-14 | 2022-07-19 | 中国石油化工股份有限公司 | Defoaming device and defoaming method for biological fluidized bed reactor |
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