CN202671279U - Cyclic utilization system for ash water of coal fired boiler - Google Patents
Cyclic utilization system for ash water of coal fired boiler Download PDFInfo
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- CN202671279U CN202671279U CN 201220313846 CN201220313846U CN202671279U CN 202671279 U CN202671279 U CN 202671279U CN 201220313846 CN201220313846 CN 201220313846 CN 201220313846 U CN201220313846 U CN 201220313846U CN 202671279 U CN202671279 U CN 202671279U
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Abstract
The utility model provides a cyclic utilization system for the ash water of a coal fired boiler. The system comprises a coal fibred boiler, an ash settling basin, an ash water pump, a steam jet pump, driving grab and a filtration system, wherein the ash settling basin is a multistage ash settling basin; the ash water pump is used for pumping filtered clean water to a spray tower for reuse; the steam jet pump comprises a steam entrance, an ash water suction port and an ash water exit; the steam entrance is connected with an steam exit of the coal fired boiler; the ash water suction port is connected with a metal hose; the other end of the metal hose is put on the bottom of a fine ash basin of the ash settling basin; the ash water exit is connected with a hose; the ash water is discharged into the filtration system by the other end of the hose; the driving grab is used for grabbing ash slag in a coarse ash basin of the ash settling basin into the filtration system to filter; and the filtration system is used for filtering the ash water into clean water. Through the utilization of the system provided by the utility model, not only is the cyclic utilization of the ash water realized, but also the ash water pump can be guaranteed not to abrade due to the suction of fine ash particles into the ash water pump along with the ash water during the use process; and therefore, the service life of the ash water pump is prolonged.
Description
Technical field
The utility model relates to the water circulation use technical field, particularly a kind of coal firing boiler ash water circulation utilization system.
Background technology
At present, the coal firing boiler that a lot of manufacturing enterprises use sprays by the desulfurized dust collection column that several grey water pumps spray the water to boiler, and the water of spray enters into ash settling basin with dust by tower bottom flow to grey ditch and precipitates.The ash settling basin buck adopts the multi stage precipitation mode, is placed into an ash heavy grey drainage for the coal ash that precipitates with driving grab bucket crawl, and the water in the ash settling basin is evacuated to the spray column reuse with grey water pump.Because the heavy ash particle degree of multistage ash settling basin is descending precipitation; the ash particle degree that avales to last step or two-stage ash settling basin is very little; when directly grabbing ash with grab bucket; tiny soot particle is not easy to be booked; and water can be stirred muddyly especially; the soot particle that stirs can be inhaled in the grey water pump along with current, and impeller, the sealing member of grey water pump caused damage, causes grey water pump to shorten work-ing life.Simultaneously, be not easy to carry out the cycle for the treatment of recycling with after carefully the water of ash flows away, cause waste.
The utility model content
The purpose of this utility model is to provide a kind of improved coal firing boiler ash water circulation utilization system, and the thin buck of ash settling basin bottom is processed, and reduces to the damage of grey water pump and to looping utilization, saving water resource after the buck purification.
In order to realize above-mentioned utility model purpose, the technical solution adopted in the utility model is as follows:
A kind of coal firing boiler ash water circulation utilization system is characterized in that, comprising: coal firing boiler, ash settling basin, grey water pump, vapor jet pump, driving grab bucket, filtering system, wherein,
Described ash settling basin is multistage ash settling basin, comprises thin ashpit and cinder pond;
Described grey water pump is used for being evacuated to through the clear water of ash settling basin and filtration system filters the spray column reuse;
Described vapor jet pump comprises steam-in, grey bilge suction, grey water out, and described steam-in links to each other with the coal firing boiler vapour outlet; Described grey bilge suction connects metallic hose, and the metallic hose the other end places the thin ashpit of described ash settling basin bottom; Described grey water out connects flexible pipe, and the flexible pipe the other end drains into buck in the filtering system;
Described driving grab bucket is used for the cinder lime-ash in described ash settling basin cinder pond grabbed to filtering system filters;
Described filtering system is used for filtered gray water is become clear water.
Further, in above-mentioned coal firing boiler ash water circulation utilization system, described thin ashpit is preferably last step or last step and the penultimate stage ash settling basin of multistage ash settling basin; Described cinder pond is other grades ash settling basin except thin ashpit.
Further, in above-mentioned coal firing boiler ash water circulation utilization system, as optimal technical scheme, described filtering system comprises: filtering basin, filtering net, described filtering basin next-door neighbour ash settling basin, described filtering net is installed in the side that described filtering basin link to each other with ash settling basin, and described filtering net size of mesh opening is less than the size of thin ash particle; Described vapor jet pump buck outlet hose places described filtering basin; Described grab bucket is grabbed the cinder lime-ash in the cinder pond to filtering basin.
Further, in above-mentioned coal firing boiler ash water circulation utilization system, also described filtering system can be preferably and comprise: ash field, cofferdam, plash, submersible pump, wherein, described ash encloses outside the venue with cinder does the cofferdam, reaches filter effect; Clear water after the filtration is leached near an ash plash; Be provided with submersible pump in the described plash, described submersible pump with the clear water pumpback to ash settling basin; Described vapor jet pump buck outlet hose is connected to the ash field; Described driving grab bucket grabs the cinder lime-ash in the cinder pond to the ash field.
The coal firing boiler ash water circulation utilization system that utilizes above-mentioned filtering system to be preferably to comprise filtering basin and filtering net can be realized coal firing boiler ash water circulation use, comprises the steps:
Step 1: open the coal firing boiler afterheat steam, open simultaneously vapor jet pump;
Step 2: vapor jet pump is with thin ashpit bottom thin ash band water suction vapor jet pump; Vapor jet pump drains into filtering basin with the flexible pipe of thin buck by grey water out;
Step 3: simultaneously, the driving grab bucket grabs the cinder lime-ash in the cinder pond to filtering basin;
Step 4: buck and lime-ash flow to ash settling basin at the filtering basin inner filtration automatically through filter screen;
Step 5: use grey water pump that the clear water that filters in the ash settling basin is evacuated to the spray column reuse.
Utilize above-mentioned filtering system to be preferably to comprise the coal firing boiler ash water circulation utilization system of ash field, cofferdam, plash, submersible pump can realize the grey water circulation use of coal firing boiler, comprise the steps:
Step 1: open the coal firing boiler afterheat steam, open simultaneously vapor jet pump;
Step 2: vapor jet pump is with thin ashpit bottom thin ash band water suction vapor jet pump; Vapor jet pump drains into ash with the flexible pipe of thin buck by grey water out;
Step 3: simultaneously, the driving grab bucket grabs the cinder lime-ash in the cinder pond to the ash field;
Step 4: buck filters under the effect of the cinder cofferdam of ash field, and clear water is leached into plash automatically;
Step 5: use submersible pump that the clear water in the plash is evacuated to ash settling basin;
Step 6: use grey water pump that the clear water that filters in the ash settling basin is evacuated to the spray column reuse.
The coal firing boiler ash water circulation utilization system that uses the utility model to provide, the driving grab bucket is grabbed cinder, lime-ash to settling tank or ash field and is filtered, simultaneously, vapor jet pump is evacuated to filtering basin or ash field with the thin ash band water in the thin ashpit, vapor jet pump can not stir the thin ash in ash settling basin bottom when taking out ash, the thin buck of extracting out is to settling tank or ash field, behind filter screen or cofferdam cinder filtration, thin buck and cinder water all purify and are clear water, wearing and tearing to grey water pump reduce, realize grey water circulation use, saved water resources.
Description of drawings
Fig. 1 is the vapor jet pump schematic diagram;
The coal firing boiler ash water circulation utilization system schematic diagram that Fig. 2 provides for embodiment two;
The coal firing boiler ash water circulation utilization system schematic diagram that Fig. 3 provides for embodiment three.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The main points of the technical scheme that the utility model provides have been to utilize a particular job principle of vapor jet pump.As shown in Figure 1, vapor jet pump has steam-in 1, grey bilge suction 2 and grey water out 3.During the vapo(u)r blasting pump work, water vapour under high pressure enters steam-in 1 with very high flow velocity, space around making forms certain negative pressure, thin buck is brought into the water vapour fluid at a high speed from grey bilge suction 2, the thin buck that sucks with enter enlarged tube after water vapour mixes, speed reduces gradually, and static pressure thereby rising are discharged finally by grey water out 3.When utilizing vapor jet pump that thin ash is taken away, can not stir and make muddy the buck in the ash settling basin, guarantee that grey water pump is not subjected to the wearing and tearing of thin ash particle.
Embodiment one provides a kind of coal firing boiler ash water circulation utilization system, it is characterized in that, comprising: coal firing boiler, ash settling basin, grey water pump, vapor jet pump, driving grab bucket, filtering system, wherein,
Described ash settling basin is multistage ash settling basin, comprises thin ashpit and cinder pond;
Described grey water pump is used for being evacuated to through the clear water of ash settling basin and filtration system filters the spray column reuse;
Described vapor jet pump comprises steam-in, grey bilge suction, grey water out, and described steam-in links to each other with the coal firing boiler vapour outlet; Described grey bilge suction connects metallic hose, and the metallic hose the other end places the thin ashpit of described ash settling basin bottom; Described grey water out connects flexible pipe, and the flexible pipe the other end drains into buck in the filtering system;
Described driving grab bucket is used for the cinder lime-ash in described ash settling basin cinder pond grabbed to filtering system filters;
Described filtering system is used for filtered gray water is become clear water.
In above-mentioned coal firing boiler ash water circulation utilization system, described thin ashpit is preferably last step or level last and the second stage ash settling basin of multistage ash settling basin; Described cinder pond is other grades ash settling basin except thin ashpit.
Embodiment two as shown in Figure 2, filtering system among the embodiment one is preferably: comprise filtering basin, filtering net, described filtering basin next-door neighbour ash settling basin, described filtering net is installed in the side that described filtering basin link to each other with ash settling basin, and described filtering net size of mesh opening is less than the size of thin ash particle; Described vapor jet pump buck outlet hose places described filtering basin; Described grab bucket is grabbed the cinder lime-ash in the cinder pond to filtering basin.
The coal firing boiler ash water circulation utilization system that utilizes embodiment two to provide carries out the method for coal firing boiler ash water circulation use, comprises the steps:
Step 1: open the coal firing boiler afterheat steam, open simultaneously vapor jet pump;
Step 2: vapor jet pump is with thin ashpit bottom thin ash band water suction vapor jet pump; Vapor jet pump drains into filtering basin with the flexible pipe of thin buck by grey water out;
Step 3: simultaneously, the driving grab bucket grabs the cinder lime-ash in the cinder pond to filtering basin;
Step 4: buck and lime-ash flow to ash settling basin at the filtering basin inner filtration automatically through filter screen;
Step 5: use grey water pump that the clear water that filters in the ash settling basin is evacuated to the spray column reuse.
Embodiment three as shown in Figure 3, the filtering system among the embodiment one is preferably: comprise ash field, cofferdam, plash, submersible pump, wherein, described ash encloses outside the venue with cinder does the cofferdam, reaches filter effect; Clear water after the filtration is leached near an ash plash; Be provided with submersible pump in the described plash, described submersible pump with the clear water pumpback to ash settling basin; Described vapor jet pump buck outlet hose is connected to the ash field; Described driving grab bucket grabs the cinder lime-ash in the cinder pond to the ash field.
The coal firing boiler ash water circulation utilization system that utilizes embodiment three to provide carries out the method for coal firing boiler ash water circulation use, comprises the steps:
Step 1: open the coal firing boiler afterheat steam, open simultaneously vapor jet pump;
Step 2: vapor jet pump is with thin ashpit bottom thin ash band water suction vapor jet pump; Vapor jet pump drains into ash with the flexible pipe of thin buck by grey water out;
Step 3: simultaneously, the driving grab bucket grabs the cinder lime-ash in the cinder pond to the ash field;
Step 4: buck filters under the effect of the cinder cofferdam of ash field, and clear water is leached into plash automatically;
Step 5: use submersible pump that the clear water in the plash is evacuated to ash settling basin;
Step 6: use grey water pump that the clear water that filters in the ash settling basin is evacuated to the spray column reuse.
The system and method that utilizes above-described embodiment to provide can utilize the afterheat steam of steam boiler to be power, and afterheat steam is played effective utilization (moisture heavier because of afterheat steam, general using efficient is not high).Simultaneously, the driving of the usefulness such as the cinder in the ash settling basin (cinder pond), lime-ash is grabbed to filtering basin or ash field, and after filtration system filters, clear water flows back to or draw back ash settling basin, guarantees pool inner water matter; Can adopt the mode of vapor jet pump suction to pump it to for the grab bucket thin ash that can't grasp and get back to ash settling basin after filtering basin or ash field purify.Re-use grey water pump the clear water that has filtered in the ash settling basin is evacuated to the spray column reuse, namely realized the recycle of buck, can guarantee again the water quality in the ash settling basin, reduce the wearing and tearing to grey water pump.
The above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model; If do not break away from spirit and scope of the present utility model, the utility model is made amendment or is equal to replacement, all should be encompassed in the middle of the protection domain of the utility model claim.
Claims (4)
1. a coal firing boiler ash water circulation utilization system is characterized in that, comprising: coal firing boiler, ash settling basin, grey water pump, vapor jet pump, driving grab bucket, filtering system, wherein,
Described ash settling basin is multistage ash settling basin, comprises thin ashpit and cinder pond;
Described grey water pump is used for being evacuated to through the clear water of ash settling basin and filtration system filters the spray column reuse;
Described vapor jet pump comprises steam-in, grey bilge suction, grey water out, and described steam-in links to each other with the coal firing boiler vapour outlet; Described grey bilge suction connects metallic hose, and the metallic hose the other end places the thin ashpit of described ash settling basin bottom; Described grey water out connects flexible pipe, and the flexible pipe the other end drains into buck in the filtering system;
Described driving grab bucket is used for the lime-ash in described ash settling basin cinder pond grabbed to filtering system filters;
Described filtering system is used for filtered gray water is become clear water.
2. described coal firing boiler ash water circulation utilization system according to claim 1 is characterized in that the last step that described thin ashpit is multistage ash settling basin or last step and penultimate stage ash settling basin; Described cinder pond is other grades ash settling basin except thin ashpit.
3. described coal firing boiler ash water circulation utilization system according to claim 1 and 2, it is characterized in that, described filtering system comprises: filtering basin, filtering net, described filtering basin next-door neighbour ash settling basin, described filtering net is installed in the side that described filtering basin link to each other with ash settling basin, and described filtering net size of mesh opening is less than the size of thin ash particle; Described vapor jet pump buck outlet hose places described filtering basin; Described grab bucket is grabbed the cinder lime-ash in the cinder pond to filtering basin.
4. described coal firing boiler ash water circulation utilization system according to claim 1 and 2 is characterized in that, described filtering system comprises: ash field, cofferdam, plash, submersible pump, and wherein, described ash encloses outside the venue with cinder does the cofferdam, reaches filter effect; Clear water after the filtration is leached near an ash plash; Be provided with submersible pump in the described plash, described submersible pump with the clear water pumpback to ash settling basin; Described vapor jet pump buck outlet hose is connected to the ash field; Described driving grab bucket grabs the cinder lime-ash in the cinder pond to the ash field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313846 CN202671279U (en) | 2012-06-29 | 2012-06-29 | Cyclic utilization system for ash water of coal fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313846 CN202671279U (en) | 2012-06-29 | 2012-06-29 | Cyclic utilization system for ash water of coal fired boiler |
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| CN202671279U true CN202671279U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220313846 Withdrawn - After Issue CN202671279U (en) | 2012-06-29 | 2012-06-29 | Cyclic utilization system for ash water of coal fired boiler |
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| CN (1) | CN202671279U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730809A (en) * | 2012-06-29 | 2012-10-17 | 江苏申久化纤有限公司 | Coal-combustion boiler ash-water recycling system and method |
| CN103302293A (en) * | 2013-05-24 | 2013-09-18 | 淮海工学院 | Spray deposition densifying device and application thereof |
-
2012
- 2012-06-29 CN CN 201220313846 patent/CN202671279U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730809A (en) * | 2012-06-29 | 2012-10-17 | 江苏申久化纤有限公司 | Coal-combustion boiler ash-water recycling system and method |
| CN103302293A (en) * | 2013-05-24 | 2013-09-18 | 淮海工学院 | Spray deposition densifying device and application thereof |
| CN103302293B (en) * | 2013-05-24 | 2014-12-17 | 淮海工学院 | Spray deposition densifying device and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20130911 |
|
| RGAV | Abandon patent right to avoid regrant |