CN1295025C - Composite type swirler for calcium plaster - Google Patents
Composite type swirler for calcium plaster Download PDFInfo
- Publication number
- CN1295025C CN1295025C CNB200410014368XA CN200410014368A CN1295025C CN 1295025 C CN1295025 C CN 1295025C CN B200410014368X A CNB200410014368X A CN B200410014368XA CN 200410014368 A CN200410014368 A CN 200410014368A CN 1295025 C CN1295025 C CN 1295025C
- Authority
- CN
- China
- Prior art keywords
- slurry
- recirculation
- gypsum slurry
- gypsum
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title description 25
- 229910052791 calcium Inorganic materials 0.000 title description 25
- 239000011575 calcium Substances 0.000 title description 25
- 239000011505 plaster Substances 0.000 title description 25
- 239000002131 composite material Substances 0.000 title 1
- 239000002002 slurry Substances 0.000 claims abstract description 60
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 25
- 239000010440 gypsum Substances 0.000 claims abstract description 25
- 238000002955 isolation Methods 0.000 claims abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 210000004534 cecum Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cyclones (AREA)
Abstract
组合式石膏浆旋流器是一种用于石灰石－石膏湿法烟气脱硫(WFGD)石膏浆脱水系统中浓缩石膏浆液的石膏浆旋流器或类似用途的装置。由分配阀、旋流子和相应管道组成，其中分配阀(1)由中空的阀体(11)和中空的滑动阀杆(12)构成，滑动阀杆位于阀体中，在阀体内设有隔离圈(15)，将阀体内的空腔分割成两部分，左边是漩流子浆液分配腔(13)，右边是再循环浆液分配腔(14)；漩流子浆液分配腔的壁上沿轴向布置有石膏浆引出管(5)通向各漩流子(4)，再循环浆液分配腔的壁上设有石膏浆再循环出口(3)；中空的滑动阀杆的盲端接执行机构(2)，另一端敞口，迎向石膏浆来流；在滑动阀杆的壁上开有长条形侧孔(121)，用来连通再循环浆液分配腔。
The combined gypsum slurry cyclone is a gypsum slurry cyclone or similar device used for concentrating gypsum slurry in the limestone-gypsum wet flue gas desulfurization (WFGD) gypsum slurry dehydration system. It consists of a distribution valve, a swirl and corresponding pipelines. The distribution valve (1) is composed of a hollow valve body (11) and a hollow sliding valve stem (12). The sliding valve stem is located in the valve body. The isolation ring (15) divides the cavity in the valve body into two parts, the left side is the swirl sub-slurry distribution chamber (13), and the right side is the recirculation slurry distribution chamber (14); the upper edge of the wall of the swirl sub-slurry distribution chamber A gypsum slurry outlet pipe (5) is arranged axially leading to each vortex (4), and a gypsum slurry recirculation outlet (3) is provided on the wall of the recirculation slurry distribution chamber; the blind end connection of the hollow sliding valve stem is executed The other end of the mechanism (2) is open to meet the incoming flow of gypsum slurry; there is a long strip side hole (121) on the wall of the sliding valve stem, which is used to communicate with the recirculation slurry distribution chamber.
Description
Technical field
The present invention relates to a kind ofly can realize the device that concentrates to slurries with simple and reliable structure, especially a kind of limestone-gypsum wet process of FGD (WFGD) calcium plaster dewatering system that is used for concentrates the gypsum oar cyclone of gypsum slurries or the device of similar applications.
Background technology
At present known such gypsum oar cyclone is to be composed in parallel by some eddy flow, and the centrifugal force that utilizes calcium plaster to rotate in eddy flow to produce is realized separating of gypsum crystal and water.During work, calcium plaster at first enters the allocation set case, then by some and eddy flow one to one by-pass valve control flow to each eddy flow and do liquid-solid the separation.When system loading changes, can realize of the adaptation of gypsum oar cyclone to load variations by the keying number (changing the sub-number of eddy flow of work) of adjusting control valve.Realize the by-pass valve control and the control corresponding loop thereof of a plurality of automatic controls of this process need.In addition, because gypsum slurries belongs to solid-liquid two-phase flow,, when design, generally require pipe flow speed in certain scope in order to prevent the solid precipitation under the low flow velocity.When system is in underload, for the flow velocity that guarantees system pipeline is not less than certain value recirculation circuit must be set, therefore also need to be provided with control corresponding valve and control corresponding loop thereof.In sum, existing gypsum oar cyclone distribution mechanism exists complex structure in design, and system is complicated, and error probability increases, problems such as cost height.
Summary of the invention
Technical problem: in order to overcome the problem that existing method exists, the invention provides a kind of simple for structure, accuracy is high, the combined type calcium plaster cyclone of low cost of manufacture.
Technical scheme: the technical solution adopted for the present invention to solve the technical problems is: combined type calcium plaster cyclone, form by distributing valve, eddy flow and corresponding pipeline, wherein distributing valve is made of the sliding stem of hollow valve body and hollow, sliding stem is arranged in valve body, in valve body, be provided with cage ring, cavity in the valve body is divided into two parts, and the left side is the sub-distribution of slurry of swirling flow chamber, and the right is recirculation slurries distribution cavity; The wall upper edge in the sub-distribution of slurry of swirling flow chamber is axial arranged to have the calcium plaster fairlead to lead to each swirling flow, and the wall of recirculation slurries distribution cavity is provided with calcium plaster recirculation outlet; The cecum of the sliding stem of hollow meets executing agency, and the other end is uncovered, meets to the calcium plaster incoming flow; On the wall of sliding stem, have the strip side opening, be used for being communicated with recirculation slurries distribution cavity.
Its position is adjusted in the instruction that the sliding stem of distributing valve sends according to the gypsum flow system flow according to control system, when sliding stem slides in cavity, the sub-number of swirling flow that is communicated with in flowing sub-distribution of slurry chamber with fixed attention can change along with the position of sliding stem, thereby realizes the control to the sub-number of swirling flow of devoting oneself to work; Simultaneously, along with sliding stem strip side opening and recirculation slurries distribution cavity be communicated with the area size variation, can regulate the flow of recirculation slurries.Realize simultaneously to the input of some eddy flow and cut out control with calcium plaster recirculation that promptly along with the sub-number of the swirling flow of devoting oneself to work increases, the recirculation slurries but reduce thereupon; Vice versa.
Beneficial effect: the invention has the beneficial effects as follows that being equipped with a cover control loop with custom-designed calcium plaster distributing valve replaces a series of by-pass valve controls and control loop in the existing method, can realize simultaneously to some eddy flow input, cut out with the calcium plaster recirculation volume and control.Owing to only use a distributing valve and a cover control loop, make that whole project organization is succinct, reduced the error probability that causes because of plurality of control valves door and control loop, saved cost.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present invention.
Fig. 2 is an A-A cross-sectional view among Fig. 1.
Have among the above figure: distributing valve 1, valve body 11, sliding stem 12, side opening 121, the sub-distribution of slurry of swirling flow chamber 13, recirculation slurries distribution cavity 14, cage ring 15, executing agency 2, calcium plaster recirculation outlet 3, swirling flow 4, calcium plaster fairlead 5.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
The calcium plaster distributing valve of design specialized is equipped with a cover control loop and replaces a series of by-pass valve controls and control loop, realize simultaneously to some eddy flow input, cut out and calcium plaster recirculation control.This distributing valve is made up of the sliding stem of columnar valve body and hollow, and the cecum of sliding stem is connected with the executing agency of outside, and another openend can slidably reciprocate in valve cavity under the drive of executing agency.
Along the flow direction of calcium plaster, the cavity in the valve body is divided into two parts: anterior is the sub-distribution of slurry of swirling flow chamber, and the rear portion is recirculation slurries distribution cavity.The sub-distribution cavity of swirling flow arranges that vertically some calcium plaster fairleads lead to each swirling flow, and recirculation slurries distribution cavity then perforate connects recirculation circuit.A certain vertically measured length place has the strip side opening on the sliding stem of hollow.When sliding stem slided in cavity, this strip side opening was looked the position difference of valve rod, can partly or entirely be communicated with recirculation slurries distribution cavity, but never be communicated with the sub-distribution cavity of swirling flow.
When sliding stem slided in cavity, the sub-number of swirling flow that is communicated with in the sub-distribution cavity of swirling flow can change along with the position of valve rod, thereby realized the control to the sub-number of swirling flow of devoting oneself to work; Simultaneously, along with valve rod strip side opening and recirculation slurries distribution cavity be communicated with the area size variation, can regulate the flow of recirculation slurries.And, be opposite for these two controls of controlling objects, promptly along with the sub-number of the swirling flow of devoting oneself to work increases, the recirculation slurries but reduce thereupon; Vice versa.
Combined type calcium plaster cyclone of the present invention, form by distributing valve, eddy flow and corresponding pipeline, wherein distributing valve 1 is made of the sliding stem 12 of hollow valve body 11 and hollow, sliding stem 12 is arranged in valve body 11, in valve body 11, be provided with cage ring 15, cavity in the valve body 11 is divided into two parts, and the left side is the sub-distribution of slurry of swirling flow chamber 13, and the right is a recirculation slurries distribution cavity 14; The wall upper edge in the sub-distribution of slurry of swirling flow chamber 13 is axial arranged to have calcium plaster fairlead 5 to lead to each swirling flow 4, and the wall of recirculation slurries distribution cavity 14 is provided with calcium plaster recirculation outlet 3; The cecum of the sliding stem 12 of hollow meets executing agency 2, and the other end is uncovered, meets to the calcium plaster incoming flow; On the wall of sliding stem 12, have strip side opening 121, be used for being communicated with recirculation slurries distribution cavity 14.Executing agency 2 is for driving the mechanical actuation device that sliding stem 12 works seesaw.
When system loading becomes big, when the calcium plaster flow that promptly needs to handle increased, the feedback signal of control loop was passed to executing agency 2, and under the drive of executing agency 2, sliding stem 12 moves right.Along with sliding stem 12 moving in cavity, swirling flow 4 numbers that are communicated with in the sub-distribution of slurry of swirling flow chamber increase, and the slurries treating capacity increases; Simultaneously, in recirculation slurries distribution cavity, the strip side opening reduces with the flow area of recirculation slurries distribution cavity, makes backflow slurries amount reduce.
When system loading diminishes, when the calcium plaster flow that promptly needs to handle reduced, the feedback signal of control loop was passed to executing agency 2, and under the drive of executing agency 2, sliding stem 12 is moved to the left.Along with sliding stem 12 moving in cavity, swirling flow 4 decreased number that in the sub-distribution of slurry of swirling flow chamber, are communicated with, the slurries treating capacity reduces; Simultaneously, in recirculation slurries distribution cavity, the strip side opening becomes big with the flow area of recirculation slurries distribution cavity, makes backflow slurries amount increase, and has guaranteed that the flow velocity of system pipeline is not less than certain value, avoids the gypsum crystal deposition.The top outlet of swirling flow is rare gypsum slurries, and the lower part outlet of swirling flow is dense gypsum slurries.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410014368XA CN1295025C (en) | 2004-03-19 | 2004-03-19 | Composite type swirler for calcium plaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410014368XA CN1295025C (en) | 2004-03-19 | 2004-03-19 | Composite type swirler for calcium plaster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562496A CN1562496A (en) | 2005-01-12 |
| CN1295025C true CN1295025C (en) | 2007-01-17 |
Family
ID=34478323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410014368XA Expired - Fee Related CN1295025C (en) | 2004-03-19 | 2004-03-19 | Composite type swirler for calcium plaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1295025C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670228B (en) * | 2009-09-25 | 2011-07-27 | 东南大学 | Size pool mixing oxidation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104442A (en) * | 1985-06-13 | 1985-12-20 | 邹宝璋 | Cylindrical duster with double vertical by-pass |
| DE3542160A1 (en) * | 1985-11-28 | 1987-06-04 | Duerr Dental Gmbh Co Kg | Apparatus for separating off amalgam particles |
| CN1056063A (en) * | 1990-04-19 | 1991-11-13 | 燃烧设计公司 | Steam purification system and method |
| CN2411060Y (en) * | 2000-02-29 | 2000-12-20 | 中国科学院工程热物理研究所 | Cyclone separator for high-temp recirculating fluidized bed |
| US20030159412A1 (en) * | 2000-07-06 | 2003-08-28 | North John Herbert | Dust/particle collecting arrangement for cyclone separators |
| CN2678776Y (en) * | 2004-03-19 | 2005-02-16 | 孙克勤 | Combined grout cyclone separator |
-
2004
- 2004-03-19 CN CNB200410014368XA patent/CN1295025C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104442A (en) * | 1985-06-13 | 1985-12-20 | 邹宝璋 | Cylindrical duster with double vertical by-pass |
| DE3542160A1 (en) * | 1985-11-28 | 1987-06-04 | Duerr Dental Gmbh Co Kg | Apparatus for separating off amalgam particles |
| CN1056063A (en) * | 1990-04-19 | 1991-11-13 | 燃烧设计公司 | Steam purification system and method |
| CN2411060Y (en) * | 2000-02-29 | 2000-12-20 | 中国科学院工程热物理研究所 | Cyclone separator for high-temp recirculating fluidized bed |
| US20030159412A1 (en) * | 2000-07-06 | 2003-08-28 | North John Herbert | Dust/particle collecting arrangement for cyclone separators |
| CN2678776Y (en) * | 2004-03-19 | 2005-02-16 | 孙克勤 | Combined grout cyclone separator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1562496A (en) | 2005-01-12 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070117 Termination date: 20160319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |