CN105921000B - A kind of dry desulfurization material circulating system - Google Patents
A kind of dry desulfurization material circulating system Download PDFInfo
- Publication number
- CN105921000B CN105921000B CN201610289329.3A CN201610289329A CN105921000B CN 105921000 B CN105921000 B CN 105921000B CN 201610289329 A CN201610289329 A CN 201610289329A CN 105921000 B CN105921000 B CN 105921000B
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- Prior art keywords
- valve
- tube
- aeration tank
- ash
- block clearing
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention provides a kind of dry desulfurization material circulating system, includes at least: ash bucket, aeration tank, skewed slot and storehouse pump；The ash bucket discharge port is connected with the aeration tank top surface, and the ash bucket discharge port is additionally provided with gate valve；The aeration tank side is connected with the skewed slot by arranging materail tube, and row's materail tube is equipped with Matter Transfer valve, and the aeration tank other side is pumped with the storehouse to be connected by ash releasing tube, and the ash releasing tube is equipped with ash discharge pneumatic operated valve；Row's materail tube, which is connected by transverse tube with vertical tube, to be constituted, and the transverse tube is connected with the aeration tank side wall, and the vertical tube is connected with the skewed slot, and the vertical tube side wall offers block clearing hole, and the center line in the block clearing hole is overlapped with the transverse tube center line；Sealing cover is detachably equipped on the block clearing hole.Block clearing can be completed online using the block clearing hole, shortens maintenance time, to not only ensure that the running rate of desulphurization system, but also can reduce the discharge of atmosphere pollution to the greatest extent.
Description
Technical field
The present invention relates to sintering flue gas desulfurization fields, more particularly to a kind of dry desulfurization material circulating system.
Background technique
Dry desulfurizing process is applied in iron and steel enterprise's flue gas desulfurization field relatively extensively, using desulfurizing agent slaked lime powder in cloth
It is recycled in bag-ash bucket-absorption tower-cloth bag system, is reacted with the sulfur dioxide in flue gas and be generated as Desulphurization dust.
Most important equipment first is that material circulating system in dry desulfurizing process.Material flows through gate valve to inflation in ash bucket
Case, a part is controlled by Matter Transfer valve flow to skewed slot recycling, and a part flow to storehouse pump by the control of ash discharge pneumatic operated valve.Wherein
Aperture, ash-valve only completely open and close is adjusted in Matter Transfer valve.Ash bucket hand operated gate valve is located at ash bucket feed opening, desulfurization system
When system operates normally, which is in normally open；There is bulk buildup to need at desulphurization system maintenance down or feed opening clear
When reason, it is necessary to which, so that hand-operated valve is in close state, which opens and closes maintenance time length and the height of maintenance efficiency is direct
Influence desulphurization system operates synchronously rate and desulfurization degree.In addition, since material accumulates water in overlong time or flue gas in ash bucket
It condenses after dividing cooling, so that material is agglomerated in Matter Transfer pipeline and block pipeline, will cause material circulating system when blocking serious
Failure in turn results in entire desulphurization system and shuts down.
In addition, the gate valve of existing material circulating system is existed using the valve rod of fixed guide support wheel and gate valve
It occur frequently that dust falls the situation on its screw thread in use process, causing when gate valve is closed and is opened, resistance is larger, when
Gate valve " stuck " problem often occurs, maintenance period is short, shortens service life.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of dry desulfurization Matter Transfers
System, for solving the above-mentioned technical problems in the prior art.
In order to achieve the above objects and other related objects, the invention provides the following technical scheme:
A kind of dry desulfurization material circulating system, includes at least: ash bucket, aeration tank, skewed slot and storehouse pump；The ash bucket goes out
Material mouth is connected with the aeration tank top surface, and the ash bucket discharge port is additionally provided with gate valve；The aeration tank side and it is described tiltedly
Slot is connected by row's materail tube, and row's materail tube is equipped with Matter Transfer valve, and the aeration tank other side and the storehouse pump
It is connected by ash releasing tube, and the ash releasing tube is equipped with ash discharge pneumatic operated valve；Row's materail tube, which is connected by transverse tube with vertical tube, to be constituted,
The transverse tube is connected with the aeration tank side wall, and the vertical tube is connected with the skewed slot, and the vertical tube side wall offers block clearing
Hole, the center line in the block clearing hole are overlapped with the transverse tube center line；Sealing cover is detachably equipped on the block clearing hole.
Further, the sealing cover is sealing flange.
Further, the gate valve is two-way plug plate valve；The two-way plug plate valve includes valve body, the first valve plate, second
Valve plate, valve rod and handwheel；First valve plate and the second valve plate is located in the valve chamber of the valve body, first valve plate and
The outer end of second valve plate is connected separately with the valve rod, and two valve rod outer end faces are connected separately with a handwheel, institute
Handwheel is stated to be located at outside the valve body；The valve rod inner end is connected by positioning bearing with the valve body；For with first valve
Several hermetically sealed needle bearings are uniformly provided on plate and the valve body guide rail of the second valve plate cooperation.
Further, the valve rod is threaded through in contractile dirt-proof boot.
Further, the screw thread of the valve rod is located in the dirt-proof boot, the dirt-proof boot both ends respectively with corresponding valve
Rod end axis is connected.
Further, the body wall offers the cleaning window for clearing up material.
Further, the valve chamber inner wall of the valve body is equipped with teflon seal item.
As described above, a kind of dry desulfurization material circulating system of the invention, has the advantages that
Since row's materail tube side wall offers block clearing hole, sealing cover is detachably equipped on the block clearing hole.Periodically tear open
Under the sealing cover can observe putty situation in row's materail tube；When finding that stopping state occurs in row's materail tube
When, the sealing cover only need to be removed, operator protrudes into dedicated block clearing tool in row's materail tube from block clearing hole, carries out clear
Stifled material；After block clearing, only the sealing cover need to be mounted on the block clearing hole again.As it can be seen that row's material
Block clearing can be completed online in managing, and without maintenance down, substantially reduce maintenance time, improve maintenance efficiency, both guarantee in this way
The running rate of desulphurization system, and can reduce the discharge of atmosphere pollution to the greatest extent.
Detailed description of the invention
Fig. 1 is shown as a kind of dry desulfurization material circulating system main view of the invention.
Fig. 2 is shown as a kind of dry desulfurization material circulating system side view of the invention
Fig. 3 is shown as gate valve schematic diagram of the invention.
Fig. 4 is shown as in Fig. 3 enlarged drawing at A.
Fig. 5 is shown as gate valve sectional view of the invention
Component label instructions
1 ash bucket
2 aeration tanks
3 gate valves
31 valve bodies
32 first valve plates
33 second valve plates
34 valve rods
35 handwheels
36 positioning bearings
37 hermetically sealed needle bearings
38 dirt-proof boots
39 teflon seal items
4 row's materail tubes
41 Matter Transfer valves
5 ash releasing tubes
51 ash discharge pneumatic operated valves
6 block clearing holes
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, the model that disclosed technology contents can be covered should all be still fallen in
In enclosing.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be also only
Convenient for being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in no essence
It changes under technology contents, when being also considered as the enforceable scope of the present invention.
As depicted in figs. 1 and 2, the present invention provides a kind of dry desulfurization material circulating system, includes at least: ash bucket 1 fills
Gas tank 2, skewed slot (not shown) and storehouse pump (not shown).
1 discharge port of ash bucket is connected with 2 top surface of aeration tank, and 1 discharge port of the ash bucket is additionally provided with gate valve 3；
2 side of aeration tank is connected with the skewed slot by arranging materail tube 4, and row's materail tube 4 is equipped with Matter Transfer valve 41,
2 other side of aeration tank is connected with storehouse pump by ash releasing tube 5, and the ash releasing tube 5 is equipped with ash discharge pneumatic operated valve 51, sees
Fig. 1.
Row's materail tube 4, which is connected by transverse tube with vertical tube, to be constituted, and the transverse tube is connected with 2 side wall of aeration tank, described
Vertical tube is connected with the skewed slot, and the vertical tube side wall offers block clearing hole 6；In order to facilitate block clearing, the best block clearing hole 6
Center line is overlapped with the transverse tube center line；Sealing cover is detachably equipped on the block clearing hole 6.Preferably, the sealing cover is
Sealing flange, the sealing flange are connected with the block clearing hole 6 by several bolts, see Fig. 1 and Fig. 2.
With reference to Fig. 1, putty situation in row's materail tube 4 can be observed by periodically removing the sealing cover；When discovery institute
When stopping state occurring in the row's of stating materail tube 4, the sealing cover need to be only removed, operator is dedicated block clearing tool from block clearing hole
6 protrude into row's materail tube 4, carry out block clearing material；After block clearing, only the sealing cover need to be mounted on again described clear
On plug-hole 6.As it can be seen that block clearing can be completed online in row's materail tube 4, without maintenance down, when substantially reducing maintenance
Between, maintenance efficiency is improved, not only ensure that the running rate of desulphurization system in this way, but also atmosphere pollution can be reduced to the greatest extent
Discharge.
With reference to Fig. 1, air pressure is -0.6~-0.8kPa in row's materail tube 4, and fluidized air blower is institute in desulphurization system
4 bottom of the row's of stating materail tube provides fluidized wind, and the dust in row's materail tube 4 can be made to raise and siphoned away by the negative pressure in ash bucket 1,
When becoming fritter or dust after lime agglomeration is broken by block clearing, the negative pressure that ash bucket 1 provides can be sucked back these dust
In ash bucket 1, it is ensured that after the block clearing hole 6 is opened, the excessive phenomenon of dust stratification in row's materail tube 4 will not occur, block clearing produces
Raw material dust can be also inhaled into again in ash bucket 1 by the negative pressure in ash bucket 1.
In the case where considering to open 6 frequency of block clearing hole and discovery blocking in time, determined by many experiments every
Interval opens the block clearing hole 6 for eight hours and observes putty situation in circulating line, is optionally cleared up.
As a further improvement of the present invention, the gate valve 3 is two-way plug plate valve；The two-way plug plate valve includes valve body
31, the first valve plate 32, the second valve plate 33, valve rod 34 and handwheel 35；First valve plate 32 and the second valve plate 33 is located at described
In the valve chamber of valve body 31, the outer end of first valve plate 32 and the second valve plate 33 is connected separately with the valve rod 34, and two
34 outer end face of valve rod is connected separately with a handwheel 35, and the handwheel 35 is located at outside the valve body 31；The valve rod 34
Inner end is connected by positioning bearing 36 with the valve body 31；For with first valve plate 32 and the second valve plate 33 cooperation described in
It is uniformly provided with several hermetically sealed needle bearings 37 on 31 guide rail of valve body, sees Fig. 3 and Fig. 5.
Compared with the fixed guide support wheel of existing dry desulfurization material circulating system gate valve 3, described
In 33 moving process of one valve plate 32 and the second valve plate, the hermetically sealed needle bearing 37 can reduce resistance, and be not easy into dust,
It improves service life.Preferably, first valve plate 32 and 33 down either side of the second valve plate are respectively disposed with described in nine
Hermetically sealed needle bearing 37.When this gate valve 3 fully opens, first valve plate 32 and 33 two sides of the second valve plate respectively by
At least one described hermetically sealed needle bearing 37 supports, and sees Fig. 3.
At interval of eight hours, it is primary only need to dynamically to open and close the gate valve 3, if the gate valve 3 has " clamping stagnation " phenomenon, and
When ascertain the reason to carry out queueing problem, reduce this dry desulfurization material circulating system gate valve 3 occur " card
Extremely " probability.
Preferably, with reference to Fig. 3, the valve rod 34 is threaded through in contractile dirt-proof boot 38.The dirt-proof boot 38 can prevent
Dust accretions avoid the gate valve 3 from phenomena such as painstaking occur when opening and closing on 34 screw thread of valve rod.Preferably, the valve rod
34 screw thread is located in the dirt-proof boot 38, and 38 both ends of dirt-proof boot are connected with corresponding 34 end axis of valve rod respectively.
Preferably, 31 side wall of valve body offers the cleaning window (not shown) for clearing up material.The cleaning window
Lid be visual lid.When finding that buildup occur in the two sides of first valve plate 32 and/or the second valve plate 33 from the visual lid
When, in non-stop-machine situation, open the lid of the cleaning window, so that it may be cleared up, substantially increase desulphurization system
Rate and desulfurization degree are operated synchronously, the discharge amount of sintering harmful smoke is reduced.
Preferably, the valve chamber inner wall of the valve body 31 is equipped with teflon seal item 39, and is located at the valve chamber inner wall
Teflon seal item 39 surround the frame shape of a side opening, see Fig. 4.First valve plate 32 and the second valve plate 33 use
Teflon seal carries out three-layer sealed.
Safeguard that the gate valve 3 of existing dry desulfurization material circulating system usually requires four personnel, maintenance cycle is usual
Half a year is typically less than for two months and service life.However, safeguarding inserting for dry desulfurization material circulating system of the invention
The people of need one of plate valve 3, maintenance period is extended for six months and service life can extend to 1 year or more；As it can be seen that significantly
Reduce human and material resources investment, reduces the investment of maintenance cost, and extend service life.
In conclusion a kind of dry desulfurization of the invention can be realized online block clearing with material circulating system, avoid de-
Sulphur system-down shortens maintenance time, and ensure desulphurization system operate synchronously rate and desulfurization degree, and it is harmful to reduce sintering
The discharge amount of flue gas；Meanwhile reducing human and material resources investment, and extend service life.So the present invention effectively overcomes
Various shortcoming in the prior art and have high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (7)
1. a kind of dry desulfurization material circulating system, includes at least: ash bucket (1), aeration tank (2), skewed slot and storehouse pump；The ash
Struggling against, (1) is interior in negative pressure state, and ash bucket (1) discharge port is connected with the aeration tank (2) top surface, and the ash bucket (1) discharges
Mouth is additionally provided with gate valve (3)；Aeration tank (2) side is connected with the skewed slot by arranging materail tube (4), and row's material
It manages (4) and is equipped with Matter Transfer valve (41), aeration tank (2) other side is connected with storehouse pump by ash releasing tube (5), and institute
Ash releasing tube (5) are stated equipped with ash discharge pneumatic operated valve (51), which is characterized in that the interior air pressure of row's materail tube (4) is -0.6~-
0.8kPa, row's materail tube (4), which is connected by transverse tube with vertical tube, to be constituted, and the transverse tube is connected with the aeration tank (2) side wall, institute
It states vertical tube to be connected with the skewed slot, and the vertical tube side wall offers block clearing hole (6), the center line of the block clearing hole (6) and institute
State the coincidence of transverse tube center line；Sealing cover is detachably equipped on the block clearing hole (6)；It further include fluidized air blower, fluidized air blower is institute
The bottom of the row's of stating materail tube (4) provides fluidized wind, and the material dust for generating row's materail tube (4) internal cause block clearing raises, simultaneously
It is inhaled into ash bucket (1) again by the negative pressure in ash bucket (1).
2. a kind of dry desulfurization material circulating system according to claim 1, it is characterised in that: the sealing cover is close
Seal flange.
3. a kind of dry desulfurization material circulating system according to claim 1, it is characterised in that: the gate valve (3)
For two-way plug plate valve；The two-way plug plate valve include valve body (31), the first valve plate (32), the second valve plate (33), valve rod (34) and
Handwheel (35)；First valve plate (32) and the second valve plate (33) is located in the valve chamber of the valve body (31), and described first
The outer end of valve plate (32) and the second valve plate (33) is connected separately with the valve rod (34), and two valve rod (34) outer end faces point
It is not connected with a handwheel (35), the handwheel (35) is located at the valve body (31) outside；It is fixed that valve rod (34) inner end passes through
Position bearing (36) is connected with the valve body (31)；For the valve with first valve plate (32) and the second valve plate (33) cooperation
Several hermetically sealed needle bearings (37) are uniformly provided on body (31) guide rail.
4. a kind of dry desulfurization material circulating system according to claim 3, it is characterised in that: the valve rod (34) is worn
It is located in contractile dirt-proof boot (38).
5. a kind of dry desulfurization material circulating system according to claim 4, it is characterised in that: the valve rod (34)
Screw thread is located in the dirt-proof boot (38), and dirt-proof boot (38) both ends are connected with corresponding valve rod (34) end axis respectively.
6. a kind of dry desulfurization material circulating system according to claim 3, it is characterised in that: valve body (31) side
Wall offers the cleaning window for clearing up material.
7. a kind of dry desulfurization material circulating system according to claim 3, it is characterised in that: the valve body (31)
Valve chamber inner wall is equipped with teflon seal item (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289329.3A CN105921000B (en) | 2016-05-04 | 2016-05-04 | A kind of dry desulfurization material circulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289329.3A CN105921000B (en) | 2016-05-04 | 2016-05-04 | A kind of dry desulfurization material circulating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105921000A CN105921000A (en) | 2016-09-07 |
| CN105921000B true CN105921000B (en) | 2019-07-19 |
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| CN201610289329.3A Active CN105921000B (en) | 2016-05-04 | 2016-05-04 | A kind of dry desulfurization material circulating system |
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| CN108757968A (en) * | 2018-06-13 | 2018-11-06 | 上海皮尔博格有色零部件有限公司 | Opposite opened gate valve and casting sand washing platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001232145A (en) * | 2000-02-23 | 2001-08-28 | Kojima Hiroyuki | Dry type automatic heat resistant dust collecting and deodorizing device for high temperature inert gas and its systemization |
| CN202691098U (en) * | 2012-06-18 | 2013-01-23 | 江苏亿金环保科技股份有限公司 | Dual-direction spiral gate valve for denitration device |
| CN202638270U (en) * | 2012-07-05 | 2013-01-02 | 中冶赛迪工程技术股份有限公司 | Material returning device of semidry method circulating fluidized bed flue gas desulfurization system |
| CN205190808U (en) * | 2015-11-25 | 2016-04-27 | 温州大学城市学院 | A manual push -pull valve for controlling flue gas pipeline break -make |
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