CN109939788A - A kind of coal pulverizer shutdown door system - Google Patents
A kind of coal pulverizer shutdown door system Download PDFInfo
- Publication number
- CN109939788A CN109939788A CN201910157228.4A CN201910157228A CN109939788A CN 109939788 A CN109939788 A CN 109939788A CN 201910157228 A CN201910157228 A CN 201910157228A CN 109939788 A CN109939788 A CN 109939788A
- Authority
- CN
- China
- Prior art keywords
- flashboard
- mouth
- coal pulverizer
- sealing element
- door system
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 238000003825 pressing Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000009510 drug design Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
The present invention discloses a kind of coal pulverizer shutdown door system, including shutoff door, flashboard, sealing element, and the shutoff door includes flashboard by mouth, the flashboard can linear movement separate by the flashboard by mouth and by the shutoff door；The sealing element passes through the sealing between mouth for the flashboard and the flashboard；It further include seal closure, the seal closure is connect with the flashboard by mouth；The sealing internal mask pressure is not less than the shutoff door internal pressure.The present invention has rational design, can leak to avoid coal pulverizer inner material, avoid security risk.
Description
Technical field
The present invention relates to a kind of coal pulverizers to turn off door system, belongs to coal-grinding equipment technical field.
Background technique
Domestic and international coal pulverizer discharge is equipped with shutoff door, and generally pneumatic shutoff door closes when shutting down for coal pulverizer
It is disconnected, prevent boiler hot-air from flowing backward the maintenance personal that burns, door is normally open when coal pulverizer operation, if Fig. 1 is the prior art
A kind of middle coal pulverizer shutoff door system structure diagram, it is by 1 shutoff door, 2 flashboards, 3 sealing elements, 4 sealing element pressing plates, 5 lockings
Bolt, 6 fixing bolts, 7 cylinder piston rods, 8 cylinders, 9 cylinder intake pipes, 10 cylinder escape pipes, 11 limit switches, 12 pointers,
13 brackets, 14 pulverized coal channels composition.
When coal pulverizer is run, due to being positive pressure inside pulverized coal channel, it is higher than atmospheric pressure, is often leaked at sealing element 3
Wind and coal phenomenon, second is that leaking serious coal dust accumulation is easy kindling, bring hidden danger to safe and civilized production first is that influencing environmental protection.
Summary of the invention
Present invention aim to address deficiency in the prior art, a kind of design is provided rationally, it can be to avoid in coal pulverizer
Portion's content leaks, avoid security risk.
To achieve the goals above, the present invention provides a kind of coal pulverizer shutdown door system, including shutoff door, flashboard, sealing
Part, the shutoff door include flashboard by mouth, the flashboard can linear movement mouth passed through by the flashboard and by the shutdown
Door partition；The sealing element passes through the sealing between mouth for the flashboard and the flashboard；It further include seal closure, the sealing
Cover is connect with the flashboard by mouth；The sealing internal mask pressure is not less than the shutoff door internal pressure.
As improvement to above-mentioned technical proposal, the seal closure includes compressed air interface.
As improvement to above-mentioned technical proposal, the flashboard includes limited step.
It further include sealing element pressing plate as improvement to above-mentioned technical proposal, the sealing element pressing plate and the flashboard are logical
It crosses mouth to be fixedly connected, the sealing element pressing plate includes through-hole, and the sealing element passes through mouth close to the flashboard against the through-hole
A side end face.
As improvement to above-mentioned technical proposal, the flashboard is provided with counter sink by mouth, and the sealing element is resisted against
The end face of the counter sink.
As improvement to above-mentioned technical proposal, the flashboard is driven by the cylinder.
As further improvement to above-mentioned technical proposal, the cylinder includes limit switch.
Compared with prior art, the beneficial effects of the present invention are: keeping pressure inside the seal closure when coal pulverizer operation
Power is higher than coal pulverizer internal pressure, thus effectively prevents wind and powder leakage inside coal pulverizer.
Detailed description of the invention
Attached drawing illustrates presently preferred embodiments of the present invention in the case where not limiting application range of the invention.
Fig. 1 is a kind of coal pulverizer shutoff door system structure diagram in the prior art.
Fig. 2 is a kind of coal pulverizer shutoff door system structure diagram proposed by the present invention.
In figure: 1 shutoff door, 101 flashboards pass through mouth, 111 counter sinks, 2 flashboards, 21 limited steps, 3 sealing elements, 4 sealing elements
Pressing plate, 41 through-holes, 5 clamping screws, 6 fixing bolts, 7 cylinder piston rods, 8 cylinders, 9 cylinder intake pipes, 10 cylinder escape pipes, 11
Limit switch, 12 pointers, 13 brackets, 14 pulverized coal channels, 15 seal closures, 151 compressed air interfaces.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
In the present invention, unless explicitly stated and limit, term " connected ", " connection " etc. should make the reason of broad sense
Solution, for example, it may be being fixedly connected, may be a detachable connection, or be integrally formed, and the mode of connection is also not construed as limiting,
It can be bolted, be also possible to riveting, welding etc., can be and be directly connected to, it can also be by other for ability
Known mechanism is indirectly connected with for the those of ordinary skill in domain.Those skilled in the art can be as the case may be
Understand the concrete meaning of above-mentioned or other similar terms in the present invention.
In the present invention, unless explicitly stated and limit, term " includes " is interpreted as open, that is, packet
It includes but is not limited to.
As shown in Fig. 2, to use a kind of coal pulverizer shutoff door system structure diagram proposed by the present invention.The present invention provides
A kind of coal pulverizer shutdown door system, including shutoff door 1, flashboard 2, sealing element 3, the shutoff door 1 include that flashboard passes through mouth 101,
The flashboard 2 can linear movement by the flashboard by mouth 101 and the shutoff door 1 being separated；The sealing element 3 is used for institute
It states flashboard 2 and the flashboard and passes through the sealing between mouth 101；It further include seal closure 15, the seal closure 15 and the flashboard are logical
Cross the connection of mouth 01；Pressure is not less than 1 internal pressure of shutoff door in the seal closure 15.
Embodiment more than maintaineds at higher than coal pulverizer inside the seal closure 15 when coal pulverizer operation
Internal pressure thus effectively prevents wind and powder leakage inside coal pulverizer.
In the above embodiment, it is preferable that the seal closure 15 includes compressed air interface 151, so that the seal closure
15 internal pressures facilitate regulation and control.
In the above embodiment, it is preferable that the flashboard 2 includes limited step 21, the flashboard 2 is preferably controlled most
Big displacement position, it is convenient to be turned off with the shutoff door 1.
In the above embodiment, it is preferable that further including sealing element pressing plate 4, the sealing element pressing plate 4 passes through with the flashboard
Mouth 101 is fixedly connected, and the sealing element pressing plate 4 includes through-hole 41, and the sealing element 3 is against the through-hole 41 close to the flashboard
Pass through a side end face of mouth 101.It is such that the fixation for facilitating the sealing element 3 is set.
In the above embodiment, it is preferable that the flashboard is provided with counter sink 111 by mouth 101, the sealing element 3 is supported
Lean against the end face of the counter sink 111.It is such that the fixation for facilitating the sealing element is set.
In the above embodiment, it is preferable that the flashboard 2 is driven by cylinder 8.
In the above-described embodiments, it is highly preferred that the cylinder 8 includes limit switch 11.
Although present specification is according to the above specific embodiment, invention has been described, but it is to be understood that with
Each upper specific embodiment is not necessarily independent, and those skilled in the art can independently implement, can also be with
It carries out combination appropriate, is formed the skilled artisan will appreciate that and the other embodiment implemented.
Embodiment of above is only exemplary and not restrictive, any without departing from made by spirit of that invention etc.
The embodiment of effect should all be within the scope of the present invention.
Claims (7)
1. a kind of coal pulverizer turns off door system, including shutoff door, flashboard, sealing element, the shutoff door includes that flashboard passes through mouth, institute
State flashboard can linear movement separate by the flashboard by mouth and by the shutoff door；The sealing element for the flashboard and
The flashboard passes through the sealing between mouth；
It is characterized in that, further including seal closure, the seal closure is connect with the flashboard by mouth；The sealing internal mask pressure is not
Lower than the shutoff door internal pressure.
2. a kind of coal pulverizer according to claim 1 turns off door system, which is characterized in that the seal closure includes that compression is empty
Gas interface.
3. a kind of coal pulverizer according to claim 1 turns off door system, which is characterized in that the flashboard includes limiting stand
Rank.
4. a kind of coal pulverizer according to claim 1 turns off door system, which is characterized in that further include sealing element pressing plate, institute
It states sealing element pressing plate and is fixedly connected with the flashboard by mouth, the sealing element pressing plate includes through-hole, and the sealing element is against institute
State the side end face that through-hole passes through mouth close to the flashboard.
5. a kind of coal pulverizer according to claim 1 turns off door system, which is characterized in that the flashboard is provided with by mouth
Counter sink, the sealing element are resisted against the end face of the counter sink.
6. a kind of coal pulverizer according to claim 1 turns off door system, which is characterized in that the flashboard is driven by the cylinder.
7. a kind of coal pulverizer according to claim 4 turns off door system, which is characterized in that the cylinder includes that limit is opened
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157228.4A CN109939788A (en) | 2019-03-01 | 2019-03-01 | A kind of coal pulverizer shutdown door system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910157228.4A CN109939788A (en) | 2019-03-01 | 2019-03-01 | A kind of coal pulverizer shutdown door system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109939788A true CN109939788A (en) | 2019-06-28 |
Family
ID=67008191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910157228.4A Pending CN109939788A (en) | 2019-03-01 | 2019-03-01 | A kind of coal pulverizer shutdown door system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109939788A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968433Y (en) * | 2006-08-02 | 2007-10-31 | 花世杰 | Inflated sealing gate valve |
| CN201399369Y (en) * | 2009-05-06 | 2010-02-10 | 天津振兴水泥有限公司 | Feeding device of roller press combined grinding system |
| CN201621309U (en) * | 2010-03-08 | 2010-11-03 | 赵云辉 | Ceramic wearable gate valve |
| CN202741225U (en) * | 2012-05-29 | 2013-02-20 | 扬州龙鑫机械有限公司 | Totally-enclosed discharge device for pebble coal of medium-speed coal pulverizer |
| CN204114205U (en) * | 2014-09-17 | 2015-01-21 | 马莉 | A kind of novel double-gate plate valve |
| CN204784790U (en) * | 2015-05-27 | 2015-11-18 | 扬州润达气动液压成套设备有限公司 | Integral sealed pneumatic plugboard gate |
| CN105233928A (en) * | 2015-10-08 | 2016-01-13 | 昆明理工大学 | Continuous ball supply device for positive-pressure coal mill |
| CN205731472U (en) * | 2016-07-04 | 2016-11-30 | 华电潍坊发电有限公司 | A kind of Novel positive pressure Strategy of Ball Mill Coal Pulverizing System add steel ball device |
| CN106609857A (en) * | 2015-10-22 | 2017-05-03 | 中核苏阀科技实业股份有限公司 | Micro-central-cavity rigid sealing abrasion-resistant brake valve |
| CN206454769U (en) * | 2016-12-23 | 2017-09-01 | 北方重工集团有限公司 | A kind of medium-speed pulverizer pebble coal discharger |
| CN107694736A (en) * | 2017-11-15 | 2018-02-16 | 张家口煜达电力科技有限公司 | Coal pulverizer ash gate and coal pulverizer |
| CN210252501U (en) * | 2019-03-01 | 2020-04-07 | 上海戎川机电工程设备有限公司 | Coal pulverizer shutoff door system |
-
2019
- 2019-03-01 CN CN201910157228.4A patent/CN109939788A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200968433Y (en) * | 2006-08-02 | 2007-10-31 | 花世杰 | Inflated sealing gate valve |
| CN201399369Y (en) * | 2009-05-06 | 2010-02-10 | 天津振兴水泥有限公司 | Feeding device of roller press combined grinding system |
| CN201621309U (en) * | 2010-03-08 | 2010-11-03 | 赵云辉 | Ceramic wearable gate valve |
| CN202741225U (en) * | 2012-05-29 | 2013-02-20 | 扬州龙鑫机械有限公司 | Totally-enclosed discharge device for pebble coal of medium-speed coal pulverizer |
| CN204114205U (en) * | 2014-09-17 | 2015-01-21 | 马莉 | A kind of novel double-gate plate valve |
| CN204784790U (en) * | 2015-05-27 | 2015-11-18 | 扬州润达气动液压成套设备有限公司 | Integral sealed pneumatic plugboard gate |
| CN105233928A (en) * | 2015-10-08 | 2016-01-13 | 昆明理工大学 | Continuous ball supply device for positive-pressure coal mill |
| CN106609857A (en) * | 2015-10-22 | 2017-05-03 | 中核苏阀科技实业股份有限公司 | Micro-central-cavity rigid sealing abrasion-resistant brake valve |
| CN205731472U (en) * | 2016-07-04 | 2016-11-30 | 华电潍坊发电有限公司 | A kind of Novel positive pressure Strategy of Ball Mill Coal Pulverizing System add steel ball device |
| CN206454769U (en) * | 2016-12-23 | 2017-09-01 | 北方重工集团有限公司 | A kind of medium-speed pulverizer pebble coal discharger |
| CN107694736A (en) * | 2017-11-15 | 2018-02-16 | 张家口煜达电力科技有限公司 | Coal pulverizer ash gate and coal pulverizer |
| CN210252501U (en) * | 2019-03-01 | 2020-04-07 | 上海戎川机电工程设备有限公司 | Coal pulverizer shutoff door system |
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