阅读说明：本技术 双层卸灰阀的漏风检测方法和卸灰系统 (The air leak test method and ash discharging system of Double-deck cinder discharge valve ) 是由 戴波 卢兴福 刘克俭 曾小信 于 2019-09-20 设计创作，主要内容包括：本申请公开一种双层卸灰阀的漏风检测方法,包括检测上灰斗内压强P2；检测双层卸灰阀的中间过渡腔内压强P1；比较P1、P2和双层卸灰阀的下层卸灰口的压强P0：在双层卸灰阀的上阀芯处于关闭状态下,先打开双层卸灰阀的下阀芯使中间过渡腔与下层卸灰口联通,再关闭下阀芯后,若P2＝P1,则判断上阀芯漏风,若P2＞P1＞P0或P2＜P1＜P0,则判断上阀芯和下阀芯同时漏风；在下阀芯处于关闭状态下,先打开上阀芯使中间过渡腔与上灰斗联通,再关闭上阀芯后,若P1＝P0,则判断下阀芯漏风。实现了监测双层卸灰阀的漏风状态,进而在漏风时及时检修双层卸灰阀,从而改善烧结球团的整体能耗和作业环境。本申请还公开一种卸灰系统。(The application discloses a kind of air leak test method of Double-deck cinder discharge valve, including detects pressure P2 in upper ash bucket；Detect the intracavitary pressure P1 of middle transition of Double-deck cinder discharge valve；Compare the pressure P0 of lower layer's cinder-discharging port of P1, P2 and Double-deck cinder discharge valve: in the case where the upper valve core of Double-deck cinder discharge valve is in close state, the bottom spool for first opening Double-deck cinder discharge valve makes middle transition chamber and lower layer's cinder-discharging port connection, after turning off bottom spool, if P2=P1, then judge that upper valve core leaks out, if P2 > P1 > P0 or P2 < P1 < P0, judges upper valve core and bottom spool while leaking out；In the case where bottom spool is in close state, first opening upper valve core makes middle transition chamber and upper ash bucket connection, after turning off upper valve core, if P1=P0, judges that bottom spool leaks out.The blow down condition of monitoring Double-deck cinder discharge valve is realized, and then overhauls Double-deck cinder discharge valve in time when leaking out, so as to improve the whole energy consumption and operating environment of agglomerates of sintered pellets.A kind of ash discharging system is also disclosed in the application.)

1. a kind of air leak test method of Double-deck cinder discharge valve characterized by comprising

Detect the pressure P2 in the upper ash bucket (1) connecting with the upper layer ash inlet of Double-deck cinder discharge valve；

Detect the pressure P1 in the middle transition chamber (6) of the Double-deck cinder discharge valve；

Compare the pressure P0 of lower layer's cinder-discharging port (4) of P1, P2 and the Double-deck cinder discharge valve: in the upper valve core of the Double-deck cinder discharge valve (3) be in close state down, first open the Double-deck cinder discharge valve bottom spool (5) make the middle transition chamber (6) and it is described under Layer cinder-discharging port (4) connection, after turning off the bottom spool (5), if there is P2=P1, judges that the upper valve core (3) leaks out, if There is P2 > P1 > P0 or P2 < P1 < P0, then judges the upper valve core (3) and the bottom spool (5) while leaking out；Described Bottom spool (5) is in close state down, and first opening the upper valve core (3) makes the middle transition chamber (6) and the upper ash bucket (1) Connection after turning off the upper valve core (3), if there is P1=P0, judges that the bottom spool (5) leaks out；

Wherein, material pneumatic is connected in the upper ash bucket (1).

2. air leak test method according to claim 1, which is characterized in that further include: after repeatedly unloading ash, recur The number that leaks out reach it is default leak out number when, send maintenance and remind.

3. air leak test method according to claim 2, which is characterized in that default number >=3 of leaking out.

4. a kind of ash discharging system, including Double-deck cinder discharge valve, the upper ash bucket being connect with the upper layer ash inlet of the Double-deck cinder discharge valve (1), material pneumatic is connected in the upper ash bucket (1)；It is characterized by further comprising:

The first detection structure (2) of detection and the pressure P2 in the upper ash bucket (1)；

Detect the second detection structure (7) of the pressure P1 in the middle transition chamber (6) of the Double-deck cinder discharge valve；

Processor, the processor compare the pressure P0 of lower layer's cinder-discharging port (4) of P1, P2 and the Double-deck cinder discharge valve；Described The upper valve core (3) of Double-deck cinder discharge valve is in close state down, and the bottom spool (5) for first opening the Double-deck cinder discharge valve makes the centre Adapter cavity (6) and lower layer's cinder-discharging port (4) connection, after turning off the bottom spool (5), if there is P2=P1, the place Reason device judges that the upper valve core (3) leaks out, if there is P2 > P1 > P0 or P2 < P1 < P0, the processor judges on described Spool (3) and the bottom spool (5) leak out simultaneously；In the case where the bottom spool (5) is in close state, the upper valve core is first opened (3) make the middle transition chamber (6) and upper ash bucket (1) connection, after turning off the upper valve core (3), if there is P1=P0, Then the processor judges that the bottom spool (5) leaks out.

5. ash discharging system according to claim 4, which is characterized in that it further include the attention device being connected to the processor, After repeatedly unloading ash, recur the number that leaks out reach it is default leak out number when, the attention device sends maintenance and reminds.

6. ash discharging system according to claim 5, which is characterized in that default number >=3 of leaking out.

7. according to the described in any item ash discharging systems of claim 4-6, which is characterized in that first detection structure (2) and institute Stating the second detection structure (7) is pressure sensor.

Technical field

This application involves metallurgy sintered technical fields, more specifically to a kind of air leak test side of Double-deck cinder discharge valve Method, the application further relate to a kind of ash discharging system.

Background technique

In iron and steel metallurgy industry, there are a large amount of discharge of materials processes, wherein very big situation material bin space is discharged with material That there are certain pressures in space is poor, across the process in different pressures region when material is discharged, referred to as material across differential pressure draining. Such as in agglomerates of sintered pellets technique, system can generate a large amount of dust in production process, and a large amount of process equipments require to collect dust And discharge is concentrated, different pressures region is all crossed in these discharges.

Unloading valve is widely used in sintering machine large flue, traditional circular cooler, drying grate bellows and dust pelletizing system etc. In process, to ensure that entire cross-pressure difference discharging process carries out under air-tight state.Existing major part unloading valve uses mushroom head Formula Double-deck cinder discharge valve, uses rigid seal, is easier to wear, and sealing effect is poor, is easier to leak out.

In agglomerates of sintered pellets field, if unloading valve leaks out, when equipment is under the action of exhaust fan, the hopper of unloading valve is Negative pressure, then environmental gas can be flowed into Double-deck cinder discharge valve, will increase invalid wind, and the load of exhaust fan is caused to increase, and waste energy Source；When equipment is under the action of air blower, hopper inner powder dust and gas, which is known from experience, to be leaked by unloading valve to environment, is caused outside at unloading valve Portion's environment dust pollution.

In conclusion the blow down condition of Double-deck cinder discharge valve how is monitored, to overhaul Double-deck cinder discharge valve in time when leaking out, from And improve the whole energy consumption and operating environment of agglomerates of sintered pellets, it is current those skilled in the art technical problem urgently to be resolved.

Apply for content

In view of this, the purpose of the application is to disclose a kind of air leak test method of Double-deck cinder discharge valve, to realize monitoring The blow down condition of Double-deck cinder discharge valve, and then overhaul Double-deck cinder discharge valve in time when leaking out, so as to improve the whole energy of agglomerates of sintered pellets Consumption and operating environment.

The another object of the application is to disclose a kind of ash discharging system.

In order to achieve the above object, the application is disclosed directly below technical solution:

A kind of air leak test method of Double-deck cinder discharge valve, comprising:

Detect the pressure P2 in the upper ash bucket connecting with the upper layer ash inlet of Double-deck cinder discharge valve；

Detect the intracavitary pressure P1 of the middle transition of the Double-deck cinder discharge valve；

Compare the pressure P0 of lower layer's cinder-discharging port of P1, P2 and the Double-deck cinder discharge valve: in the upper valve of the Double-deck cinder discharge valve Core is in close state down, and the bottom spool for first opening the Double-deck cinder discharge valve makes the middle transition chamber and lower layer's cinder-discharging port Connection after turning off the bottom spool, if there is P2=P1, judges that the upper valve core leaks out, if occur P2 > P1 > P0 or P2 < P1 < P0, then judge the upper valve core and the bottom spool while leaking out；In the case where the bottom spool is in close state, first Opening the upper valve core makes the middle transition chamber and the upper ash bucket connection, after turning off the upper valve core, if there is P1= P0 then judges that the bottom spool leaks out；

Wherein, material pneumatic is connected in the upper ash bucket.

Preferably, in above-mentioned air leak test method, further includes: after repeatedly unloading ash, recur the number that leaks out and reach pre- If leak out number when, send maintenance remind.

Preferably, in above-mentioned air leak test method, default number >=3 of leaking out.

It can be seen from the above technical scheme that the air leak test method of Double-deck cinder discharge valve disclosed in the present application includes: inspection Survey the pressure P2 in the upper ash bucket connecting with the upper layer ash inlet of Double-deck cinder discharge valve；The middle transition for detecting Double-deck cinder discharge valve is intracavitary Pressure P1；Compare the pressure P0 of lower layer's cinder-discharging port of P1, P2 and Double-deck cinder discharge valve: being in and close in the upper valve core of Double-deck cinder discharge valve Under closed state, the bottom spool for first opening Double-deck cinder discharge valve makes middle transition chamber and lower layer's cinder-discharging port connection, after turning off bottom spool, If there is P2=P1, judge that upper valve core leaks out, if there is P2 > P1 > P0 or P2 < P1 < P0, judges upper valve core and lower valve Core leaks out simultaneously；In the case where bottom spool is in close state, first opening upper valve core makes middle transition chamber and upper ash bucket connection, turns off After upper valve core, if there is P1=P0, judge that bottom spool leaks out；Wherein, material pneumatic is connected in upper ash bucket.

The application pressure P1 intracavitary by the middle transition for detecting pressure P2 and Double-deck cinder discharge valve in upper ash bucket；And compare Compared with the pressure P0 of P1, P2 and lower layer's cinder-discharging port of Double-deck cinder discharge valve, in the case where upper valve core is in close state, first opening bottom spool makes Middle transition chamber and lower layer's cinder-discharging port connection, after turning off bottom spool, if there is P2=P1, judge that upper valve core leaks out, if going out Existing P2 > P1 > P0 or P2 < P1 < P0, then judge upper valve core and bottom spool while leaking out；In the case where bottom spool is in close state, First opening upper valve core makes middle transition chamber and upper ash bucket connection, after turning off upper valve core, if there is P1=P0, judge bottom spool It leaks out；To realize the monitoring of three kinds of blow down conditions.

In conclusion the air leak test method of Double-deck cinder discharge valve provided by the present application can monitor leaking out for Double-deck cinder discharge valve State, and then overhaul Double-deck cinder discharge valve in time when leaking out, so as to improve the whole energy consumption and operating environment of agglomerates of sintered pellets.

Disclosed herein as well is a kind of ash discharging system, including Double-deck cinder discharge valve, with the upper layer of the Double-deck cinder discharge valve into ash The upper ash bucket of mouthful connection, is connected with material pneumatic in the upper ash bucket；Further include:

First detection structure of detection and the pressure P2 in the upper ash bucket；

Detect the second detection structure of the intracavitary pressure P1 of middle transition of the Double-deck cinder discharge valve；

Processor, the processor compare the pressure P0 of lower layer's cinder-discharging port of P1, P2 and the Double-deck cinder discharge valve；Described The upper valve core of Double-deck cinder discharge valve is in close state down, and the bottom spool for first opening the Double-deck cinder discharge valve makes the middle transition chamber With lower layer's cinder-discharging port connection, after turning off the bottom spool, if there is P2=P1, the processor judges the upper valve Core leaks out, if there is P2 > P1 > P0 or P2 < P1 < P0, the processor judges that the upper valve core and the bottom spool are same When leak out；In the case where the bottom spool is in close state, first opening the upper valve core makes the middle transition chamber and the upper ash Struggle against connection, and after turning off the upper valve core, if there is P1=P0, the processor judges that the bottom spool leaks out.

It preferably, further include the attention device being connected to the processor in above-mentioned ash discharging system, after repeatedly unloading ash, even The raw number that leaks out of supervention reach it is default leak out number when, the attention device sends maintenance and reminds.

Preferably, in above-mentioned ash discharging system, default number >=3 of leaking out.

Preferably, in above-mentioned ash discharging system, first detection structure and second detection structure are pressure sensing Device.

It can be seen from the above technical scheme that ash discharging system disclosed in the present application includes Double-deck cinder discharge valve, unloaded with bilayer The upper ash bucket of the upper layer ash inlet connection of grey valve, is connected with material pneumatic in upper ash bucket；Further include: detection and the pressure in upper ash bucket The first detection structure of P2；The second detection structure of the intracavitary pressure P1 of the middle transition of detection Double-deck cinder discharge valve；Processor, place Reason device compares the pressure P0 of lower layer's cinder-discharging port of P1, P2 and Double-deck cinder discharge valve；It is in the upper valve core of Double-deck cinder discharge valve and closes shape Under state, the bottom spool for first opening Double-deck cinder discharge valve makes middle transition chamber and lower layer's cinder-discharging port connection, after turning off bottom spool, if going out Existing P2=P1, then processor judges that upper valve core leaks out, if there is P2 > P1 > P0 or P2 < P1 < P0, processor judges upper valve Core and bottom spool leak out simultaneously；In the case where bottom spool is in close state, first opening upper valve core joins middle transition chamber and upper ash bucket Logical, after turning off upper valve core, if there is P1=P0, processor judges that bottom spool leaks out.

In ash discharging system application process, the pressure P2 in upper ash bucket is detected by the first detection structure, passes through the second detection The intracavitary pressure P1 of the middle transition of structure detection Double-deck cinder discharge valve；And compare P1, P2 and Double-deck cinder discharge valve using processor The pressure P0 of lower layer's cinder-discharging port, in the case where upper valve core is in close state, first opening bottom spool makes middle transition chamber and lower layer unload ash Mouthful connection, after turning off bottom spool, if there is P2=P1, processor judges that upper valve core leaks out, if occur P2 > P1 > P0 or P2 < P1 < P0, then processor judges upper valve core and bottom spool while leaking out；In the case where bottom spool is in close state, first open Spool makes middle transition chamber and upper ash bucket connection, and after turning off upper valve core, if there is P1=P0, processor judges that bottom spool leaks Wind；To realize the monitoring of three kinds of blow down conditions.

In conclusion ash discharging system provided by the present application can monitor the blow down condition of Double-deck cinder discharge valve, and then leaking out When overhaul Double-deck cinder discharge valve in time, so as to improve the whole energy consumption and operating environment of agglomerates of sintered pellets.

Detailed description of the invention

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the application Some embodiments for those of ordinary skill in the art without creative efforts, can also basis These attached drawings obtain other attached drawings.

Fig. 1 is the structural schematic diagram of ash discharging system disclosed in the embodiment of the present application.

Specific embodiment

The embodiment of the present application discloses a kind of air leak test method of Double-deck cinder discharge valve, realizes monitoring Double-deck cinder discharge valve Blow down condition, and then overhaul Double-deck cinder discharge valve in time when leaking out, so as to improve the whole energy consumption and operation ring of agglomerates of sintered pellets Border.

To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.

The air leak test method of Double-deck cinder discharge valve disclosed in the embodiment of the present application includes: the upper layer of detection and Double-deck cinder discharge valve Pressure P2 in the upper ash bucket 1 of ash inlet connection；Detect the pressure P1 in the middle transition chamber 6 of Double-deck cinder discharge valve；Compare P1, P2 With the pressure P0 of lower layer's cinder-discharging port 4 of Double-deck cinder discharge valve: in the case where the upper valve core 3 of Double-deck cinder discharge valve is in close state, first opening The bottom spool 5 of Double-deck cinder discharge valve makes middle transition chamber 6 and 4 connection of lower layer's cinder-discharging port, after turning off bottom spool 5, if there is P2= P1 then judges that upper valve core 3 leaks out, if there is P2 > P1 > P0 or P2 < P1 < P0, judges upper valve core 3 and bottom spool 5 simultaneously It leaks out；In the case where bottom spool 5 is in close state, first opening upper valve core 3 makes middle transition chamber 6 and upper 1 connection of ash bucket, turns off After spool 3, if there is P1=P0, judge that bottom spool 5 leaks out；Wherein, material pneumatic is connected in upper ash bucket 1.

It should be noted that the middle transition chamber 6 of Double-deck cinder discharge valve is the upper valve core 3 and bottom spool positioned at Double-deck cinder discharge valve Cavity between 5, two spools are able to be opened and closed the inlet and outlet of the cavity.

In application, upper ash bucket 1 at the upper layer ash inlet of Double-deck cinder discharge valve connects airflow line, as sintering machine large flue, Circular cooler etc., there are positive pressure or negative pressure states；Double-deck cinder discharge valve is arranged with belt or rewinding trolley, dust material Through 4 direct emission of lower layer's cinder-discharging port on belt or trolley, lower layer's cinder-discharging port 4 always with atmosphere, so P0 is fixed not Become, is atmospheric pressure, is set as 0.

Pressure P1 in middle transition chamber 6 of the application by detecting the pressure P2 and Double-deck cinder discharge valve in upper ash bucket 1；And The pressure P0 for comparing lower layer's cinder-discharging port 4 of P1, P2 and Double-deck cinder discharge valve first opens lower valve in the case where upper valve core 3 is in close state Core 5 makes middle transition chamber 6 and 4 connection of lower layer's cinder-discharging port, after turning off bottom spool 5, if there is P2=P1, judges upper valve core 3 It leaks out, if there is P2 > P1 > P0 or P2 < P1 < P0, judges upper valve core 3 and bottom spool 5 while leaking out；At bottom spool 5 Under closed state, first opening upper valve core 3 makes middle transition chamber 6 and upper 1 connection of ash bucket, after turning off upper valve core 3, if there is P1 =P0 then judges that bottom spool 5 leaks out；To realize the monitoring of three kinds of blow down conditions.

In conclusion the air leak test method of Double-deck cinder discharge valve provided by the present application can monitor leaking out for Double-deck cinder discharge valve State, and then overhaul Double-deck cinder discharge valve in time when leaking out, so as to improve the whole energy consumption and operating environment of agglomerates of sintered pellets.

Double-deck cinder discharge valve provided by the present application once to unload grey process as follows；

When material accumulation is to predetermined amount in upper ash bucket 1；Upper valve core 3 is opened, by the discharge of materials in upper ash bucket 1 to centre In adapter cavity 6, middle transition chamber 6 and upper 1 connection of ash bucket at this time, pressure and upper 1 internal pressure strongly consistent of ash bucket in middle transition chamber 6, P1=P2 at this time；

After material is all discharged to middle transition chamber 6 in upper ash bucket 1, upper valve core 3 is closed, bottom spool 5 is opened, by intermediate mistake It crosses the discharge of materials in chamber 6 to be emitted on belt or trolley to lower layer's cinder-discharging port 4, and by lower layer's cinder-discharging port 4, at this time middle transition Chamber 6 and 4 connection of lower layer's cinder-discharging port, P1=P0 are influenced, P1 due to being passed through material pneumatic always in upper ash bucket 1 by air flow pressure ≠P2；

After material discharges completely, bottom spool 5 is turned off；In a kind of situation, because there are upper valve cores 3 to leak out, middle transition chamber 6 It will do it air-flow with upper ash bucket 1 to exchange, 6 pressure of middle transition chamber can change, and gradually tend to pressure P2 in upper ash bucket 1, Last P2=P1；In another case, ash unloads in upper ash bucket 1, middle transition chamber 6, lower layer because upper valve core 3, bottom spool 5 leak out Mouthfuls 4 communicate with one another exchange, and it is positive pressure at ash bucket 1 as above that change of gradient, which can be presented, in relative barometric pressure at three, then has P2 > P1 > P0； It is negative pressure at ash bucket 1 as above, then has P2 < P1 < P0；And gradually tend to the pressure P0 of lower layer's cinder-discharging port 4；

It is again turned on upper valve core 3, middle transition chamber 6 and upper 1 connection of ash bucket is primary, P2=P1 at this time；It is last again to close Ash is unloaded in upper valve core 3, completion；Because there are bottom spools 5 to leak out, middle transition chamber 6 will do it air-flow with lower layer cinder-discharging port 4 and exchange, in Between in adapter cavity 6 pressure can change, and gradually tend to the pressure P0, last P1=P0 of lower layer's cinder-discharging port 4.

The application uses is opened and closed spool (being opened and closed upper valve core 3 twice, primary to be opened and closed bottom spool 5) three times, and matches and close ash bucket 1 With the detection of pressure in middle transition chamber 6, by comparing the leakage that can effectively monitor Double-deck cinder discharge valve in cavity with respect to pressure change Wind state, whether judgement is leaked out.

Preferably, above-mentioned air leak test method further includes recurring the number that leaks out after repeatedly unloading ash and reaching default leakage When wind number, sends maintenance and remind.The when single situation of leaking out that recurring in the application leaks out that number is directed to, such as it is continuous go out Now spool 5 leaks out repeatedly；Or continuously there is upper valve core 3 and leak out repeatedly；Or continuously there is upper valve core 3 and bottom spool 5 while leaking Wind is multiple.

The application Double-deck cinder discharge valve recur it is default leak out number when, send maintenance and remind；It avoids closing due to spool Close it is not tight caused by surprisingly leak out situation.Certainly, the application can also send maintenance when every generation is once leaked out and remind

Default number >=3 of leaking out.Specifically, the default number that leaks out is 3；When Double-deck cinder discharge valve continuous 3 leaks more than this Wind warning then illustrates that upper valve plate and/or upper valve plate are needed repairing or replaced.

Attached drawing 1 is please referred to, the embodiment of the present application also discloses a kind of ash discharging system, including Double-deck cinder discharge valve, unloads with bilayer The upper ash bucket 1 of the upper layer ash inlet connection of grey valve, is connected with material pneumatic in upper ash bucket 1；Further include: in detection and upper ash bucket 1 The first detection structure 2 of pressure P2；Detect the second detection structure 7 of the pressure P1 in the middle transition chamber 6 of Double-deck cinder discharge valve；Place Device is managed, processor compares the pressure P0 of lower layer's cinder-discharging port 4 of P1, P2 and Double-deck cinder discharge valve；At the upper valve core 3 of Double-deck cinder discharge valve Under closed state, the bottom spool 5 for first opening Double-deck cinder discharge valve makes middle transition chamber 6 and 4 connection of lower layer's cinder-discharging port, turns off down After spool 5, if there is P2=P1, processor judges that upper valve core 3 leaks out, if there is P2 > P1 > P0 or P2 < P1 < P0, Processor judges upper valve core 3 and bottom spool 5 while leaking out；In the case where bottom spool 5 is in close state, first open during upper valve core 3 makes Between adapter cavity 6 and upper 1 connection of ash bucket, after turning off upper valve core 3, if there is P1=P0, processor judges that bottom spool 5 leaks out.

In ash discharging system application process, the pressure P2 in upper ash bucket 1 is detected by the first detection structure 2, passes through the second inspection Geodesic structure 7 detects the pressure P1 in the middle transition chamber 6 of Double-deck cinder discharge valve；And compare P1, P2 using processor and bilayer unloads ash The pressure P0 of lower layer's cinder-discharging port 4 of valve, in the case where upper valve core 3 is in close state, first open bottom spool 5 make middle transition chamber 6 with 4 connection of lower layer's cinder-discharging port, after turning off bottom spool 5, if there is P2=P1, processor judges that upper valve core 3 leaks out, if there is P2 > P1 > P0 or P2 < P1 < P0, then processor judges upper valve core 3 and bottom spool 5 while leaking out；It is in bottom spool 5 and closes shape Under state, first opening upper valve core 3 makes middle transition chamber 6 and upper 1 connection of ash bucket, after turning off upper valve core 3, if there is P1=P0, Processor judges that bottom spool 5 leaks out；To realize the monitoring of three kinds of blow down conditions.

In conclusion ash discharging system provided by the present application can monitor the blow down condition of Double-deck cinder discharge valve, and then leaking out When overhaul Double-deck cinder discharge valve in time, so as to improve the whole energy consumption and operating environment of agglomerates of sintered pellets.

Double-deck cinder discharge valve provided by the present application once to unload grey process as follows；

When material accumulation is to predetermined amount in upper ash bucket 1；Upper valve core 3 is opened, by the discharge of materials in upper ash bucket 1 to centre In adapter cavity 6, middle transition chamber 6 and upper 1 connection of ash bucket at this time, pressure and upper 1 internal pressure strongly consistent of ash bucket in middle transition chamber 6, P1=P2 at this time；

After material is all discharged to middle transition chamber 6 in upper ash bucket 1, upper valve core 3 is closed, bottom spool 5 is opened, by intermediate mistake It crosses the discharge of materials in chamber 6 to be emitted on belt or trolley to lower layer's cinder-discharging port 4, and by lower layer's cinder-discharging port 4, at this time middle transition Chamber 6 and 4 connection of lower layer's cinder-discharging port, P1=P0 are influenced, P1 due to being passed through material pneumatic always in upper ash bucket 1 by air flow pressure ≠P2；

After material discharges completely, bottom spool 5 is turned off；In a kind of situation, because there are upper valve cores 3 to leak out, middle transition chamber 6 It will do it air-flow with upper ash bucket 1 to exchange, 6 pressure of middle transition chamber can change, and gradually tend to pressure P2 in upper ash bucket 1, Last P2=P1；In another case, ash unloads in upper ash bucket 1, middle transition chamber 6, lower layer because upper valve core 3, bottom spool 5 leak out Mouthfuls 4 communicate with one another exchange, and it is positive pressure at ash bucket 1 as above that change of gradient, which can be presented, in relative barometric pressure at three, then has P2 > P1 > P0； It is negative pressure at ash bucket 1 as above, then has P2 < P1 < P0；And gradually tend to the pressure P0 of lower layer's cinder-discharging port 4；

It is again turned on upper valve core 3, middle transition chamber 6 and upper 1 connection of ash bucket is primary, P2=P1 at this time；It is last again to close Ash is unloaded in upper valve core 3, completion；Because there are bottom spools 5 to leak out, middle transition chamber 6 will do it air-flow with lower layer cinder-discharging port 4 and exchange, in Between in adapter cavity 6 pressure can change, and gradually tend to the pressure P0, last P1=P0 of lower layer's cinder-discharging port 4.

The application uses is opened and closed spool (being opened and closed upper valve core 3 twice, primary to be opened and closed bottom spool 5) three times, and matches and close ash bucket 1 With the detection of pressure in middle transition chamber 6, by comparing the leakage that can effectively monitor Double-deck cinder discharge valve in cavity with respect to pressure change Wind state, whether judgement is leaked out.

Preferably, ash discharging system further includes attention device connected to the processor, after repeatedly unloading ash, recurs and leaks out time Number reach it is default leak out number when, attention device sends maintenance and reminds.

, such as continuously there is bottom spool 5 and leaks out in the when single situation of leaking out that recurring in the application leaks out that number is directed to Repeatedly；Or continuously there is upper valve core 3 and leak out repeatedly；Or continuously there is upper valve core 3 and bottom spool 5 while leaking out repeatedly.

The application Double-deck cinder discharge valve recur it is default leak out number when, send maintenance and remind；It avoids closing due to spool Close it is not tight caused by surprisingly leak out situation.Certainly, the application can also send maintenance when every generation is once leaked out and remind

Default number >=3 of leaking out.Specifically, the default number that leaks out is 3；When Double-deck cinder discharge valve continuous 3 leaks more than this Wind warning then illustrates that upper valve plate and/or upper valve plate are needed repairing or replaced.

In order to simplify structure, the first detection structure 2 and the second detection structure 7 are pressure sensor.First detection structure 2 It is mounted on 1 bottom of ash bucket, the second detection structure 7 is mounted in the upper valve of Double-deck cinder discharge valve.Above-mentioned first detection structure 2 and Two detection structures 7 can also be other structures, such as pressure gage.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.