CN105180185A - Air-cooled dry slag extractor with pneumatic transmission system and control method of air-cooled dry slag extractor - Google Patents

Air-cooled dry slag extractor with pneumatic transmission system and control method of air-cooled dry slag extractor Download PDF

Info

Publication number
CN105180185A
CN105180185A CN201510622760.0A CN201510622760A CN105180185A CN 105180185 A CN105180185 A CN 105180185A CN 201510622760 A CN201510622760 A CN 201510622760A CN 105180185 A CN105180185 A CN 105180185A
Authority
CN
China
Prior art keywords
air
cooled dry
dry slag
ash
discharging machine
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
Application number
CN201510622760.0A
Other languages
Chinese (zh)
Inventor
孔阶森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Yuan Long Genie Et Environnement
Original Assignee
Hangzhou Yuan Long Genie Et Environnement
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou Yuan Long Genie Et Environnement filed Critical Hangzhou Yuan Long Genie Et Environnement
Priority to CN201510622760.0A priority Critical patent/CN105180185A/en
Publication of CN105180185A publication Critical patent/CN105180185A/en
Pending legal-status Critical Current

Links

Landscapes

  • Gasification And Melting Of Waste (AREA)

Abstract

The invention discloses an air-cooled dry slag extractor with a pneumatic transmission system and a control method of the air-cooled dry slag extractor. The air-cooled dry slag extractor comprises an air-cooled dry slag extractor body, a sweeping chain slag falling hopper, an expansion joint and the pneumatic transmission system. The upper portion of the horizontal segment of the air-cooled dry slag extractor is connected with a hearth. The lower portion of a turning segment is connected with the sweeping chain slag falling hopper. A fine ash discharging opening of the sweeping chain slag falling hopper is connected with a feeding valve of the pneumatic transmission system through the expansion joint. The conveying pipe outlet end of the pneumatic transmission system is connected with a slag bin. Ash at the bottom of the air-cooled dry slag extractor is conveyed to the sweeping chain slag falling hopper through a sweeping chain device firstly, large slag blocks are screened out through a grid in the sweeping chain slag falling hopper, and slag ash of the grid is conveyed into a bin pump in the pneumatic transmission system through the discharging opening of the sweeping chain slag falling hopper and conveyed to the slag bin. By means of the air-cooled dry slag extractor, the problems that according to the original design, a sweeping chain device is low in ash conveying efficiency and material blocking occurs at the turning segment of a dry slag extractor are solved, and the reliability and safety of the device are improved; and besides, wear of the device is lowered, and maintenance cost is saved.

Description

A kind of air-cooled dry slag discharging machine with air-transport system and control method thereof
Technical field
The present invention relates to lime-ash cooling device mechanical field, particularly relate to a kind of air-cooled dry slag discharging machine with air-transport system and control method thereof.
Background technology
At present, the outstanding serviceability of coal-burning boiler air-cooled dry slag discharging machine makes it widely use each coal-burning power plant at home.Air-cooled dry slag discharging machine has excellent effect in energy-saving and emission-reduction, but in air-cooled dry slag discharging machine use procedure, also embody the shortcoming of himself, particularly at long distance delivery or have and large promote in the air-cooled dry slag discharging machine of angle conveying, just there will be the defeated grey efficiency of cleaning chain apparatus low, cleaning chain apparatus serious wear, and there is serious clogging phenomenon in turnaround section, encounter ash quantity large time, running hours can not meet the requirement of system ash disposal at full capacity.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of its control method of the air-cooled dry slag discharging machine with air-transport system, this slag extractor is not when changing former air-cooled dry slag discharging machine layout and structure, improve the defeated grey efficiency of cleaning chain apparatus, substantially reduce the length of cleaning chain apparatus, reduce the wearing and tearing of cleaning chain apparatus, thoroughly solve the phenomenon that turnaround section blocks up ash, further increase the performance of air-cooled dry slag discharging machine.
In order to achieve the above object, the technical solution adopted in the present invention is as follows: a kind of air-cooled dry slag discharging machine with air-transport system, for the lime-ash dropped after collecting hearth combustion, comprise air-cooled dry slag discharging machine, cleaning chain falls slag bucket, expansion joint and air-transport system; Wherein, described air-cooled dry slag discharging machine is arranged in burner hearth bottom, and described air-cooled dry slag discharging machine comprises raising section, turnaround section and horizontal segment, and raising section, turnaround section are connected successively with horizontal segment; The horizontal segment of air-cooled dry slag discharging machine is connected with burner hearth, for the lime-ash dropped after receiving hearth combustion; The top of raising section has discharging opening, and described discharging opening is connected with slag storehouse; The turnaround section lower surface of air-cooled dry slag discharging machine has lime-ash discharging opening, and cleaning chain falls slag bucket and arranges below turnaround section, and is connected with lime-ash discharging opening; The upper end of expansion joint connects cleaning chain and falls slag bucket, and lower end connects air-transport system; Air-transport system connects slag storehouse.
Further, described air-cooled dry slag discharging machine also comprises conveyer belt driving wheel, conveyer belt driven pulley, cleaning chain driving wheel, cleaning chain driven pulley, conveyer belt and cleaning chain apparatus; Conveyer belt driving wheel and conveyer belt driven pulley are arranged on horizontal segment and the raising section of air-cooled dry slag discharging machine respectively; Cleaning chain driving wheel and cleaning chain driven pulley are arranged on horizontal segment and the turnaround section of air-cooled dry slag discharging machine respectively; Conveyer belt is arranged between conveyer belt driving wheel and conveyer belt driven pulley; Cleaning chain apparatus is arranged between cleaning chain driving wheel and cleaning chain driven pulley; Described conveyer belt and cleaning chain apparatus are arranged in parallel up and down in air-cooled dry slag discharging machine inside, and conveyer belt is positioned at the top of cleaning chain apparatus.
Further, described cleaning chain falls slag bucket and is made up of charging aperture, grid, cylindrical shell, thin grey discharging opening and cinder discharging opening; Cylindrical shell is a cylindrical shell wide at the top and narrow at the bottom, and the top of cylindrical shell is connected with charging aperture, and lower parallel is connected to thin grey discharging opening and cinder discharging opening, and thin grey discharging opening is near the side of a raising section high position, and cinder discharging opening is near the side of raising section low level; Grid is one block of steel plate with grid, is arranged in cylindrical shell, and being connected with the limit of a cylindrical shell top high position of grid, its opposite side is connected with the junction of cinder discharging opening with thin grey discharging opening, and all the other each limits are connected with cylindrical shell; Charging aperture is connected with lime-ash discharging opening.
Further, cylindrical shell is divided into two chambers by described grid, and the bottom of grid is thin grey chamber, and the top of grid is cinder chamber.
Further, described air-transport system comprises inlet valve, storehouse pump, air intake valve, source of the gas, outlet valve and ash pipeline; Storehouse pump is horizontally disposed, and inlet valve is installed on its top; The air inlet of storehouse pump by air intake valve with connect that source of the gas is connected, gas outlet is connected with slag storehouse by discharge valve and ash pipeline; Inlet valve is connected with expansion joint.
A control method for air-cooled dry slag discharging machine with air-transport system, specifically comprises the following steps:
(1) air-transport system, cleaning chain driving wheel and conveyer belt driving wheel is started successively; Before starting air-transport system, guarantee foreign and putty situation in the pump of storehouse, and confirm that inlet valve, intake valve and discharge valve are all in closed condition;
(2) after the cleaning chain apparatus of air-cooled dry slag discharging machine and the conveyer belt of air-cooled dry slag discharging machine all start, first inlet valve is opened, lime-ash enters storehouse pump, when the level-sensing device in the pump of storehouse triggers full level signals or feed time reaches setting value, described feed time reaches setting value and enters storehouse pump than lime-ash and reach many 2 ~ 5 seconds of the time that level-sensing device completely expects that signal triggers, close inlet valve, then air intake valve is opened, pressurization fluidisation is carried out to lime-ash in the pump of storehouse, after in the pump of storehouse, pressure reaches setting value, it is 0.2 ~ 0.3mpa that described pressure reaches setting value, the lime-ash in the pump of storehouse and compressed air is allowed fully to mix, then discharge valve is opened, air-flow is transported to slag storehouse together with the lime-ash in the pump of storehouse, this completes and once carry flow process,
(3) if Ash water completes in the pump of storehouse, in the pump of storehouse, pressure can revert to atmospheric pressure state, if in setting-up time, this setting-up time is than many 30 seconds of the time of the thin ash in the pump of conveying satisfactory storehouse, and in the pump of storehouse, pressure does not also drop to normal pressure, illustrates and pipeline has place to block, have impact on normal conveying, now need to close discharge valve, storehouse pump is pressurizeed again, and then opens outlet valve and carry; When once carry flow process to the pressurization number of times of storehouse pump more than 3 times time, stifled serious of pipeline is described, need manually to dredge, at this time system provides fault alarm, and carries out shut-down operation to conveying flow process; If in setting-up time, in the pump of storehouse, pressure drops to normal pressure, and illustrate that conveyance conduit putty failure condition is removed, in the pump of storehouse, material has been carried, and now first closes air intake valve, rear closedown discharge valve;
(4), when slag drying machine is stopped transport, the conveyer belt of air-cooled dry slag discharging machine of first stopping transport, then the cleaning chain apparatus of stoppage in transit air-cooled dry slag discharging machine, air-transport system of finally stopping transport, guarantees that the lime-ash in slag drying machine is all eliminated totally.
The beneficial effect that the present invention has is:
1, greatly promote the defeated grey efficiency of air-cooled dry slag discharging machine, and according to the change of coal-burning boiler load and ature of coal, defeated ash quantity can be adjusted in time, with minimum energy consumption, reach maximum treating capacity.
2, do not make an amendment the structure of original air-cooled dry slag discharging machine and arranging, this, with regard to transforming on already installed air-cooled dry slag discharging machine very easily, reduces improvement cost.
3, decrease the length of cleaning chain apparatus to greatest extent, reduce the frictional resistance of whole piece cleaning chain apparatus, reduce operation energy consumption, reduce wearing and tearing;
4, for air-transport system of the present invention, adopt modularized design, flexible arrangement, maintenance is convenient.
5, the present invention is used for the air-cooled conveying equipment of thermal power plant high-temperature boiler bottom slag, is also widely used in industries such as metallurgy, electric power, mines.
Accompanying drawing explanation
Fig. 1 is layout drawing of the present invention
Fig. 2 is air-cooled dry slag discharging machine composition schematic diagram;
Fig. 3 is that cleaning chain falls slag bucket schematic diagram;
Fig. 4 is air-transport system layout drawing;
Fig. 5 is control flow chart of the present invention;
In figure: burner hearth 1, air-cooled dry slag discharging machine 2, cleaning chain fall slag bucket 3, expansion joint 4, air-transport system 5, slag storehouse 6, raising section 7, turnaround section 8, horizontal segment 9, conveyer belt 10, cleaning chain apparatus 11, charging aperture 12, grid 13, cylindrical shell 14, thin grey discharging opening 15, cinder discharging opening 16, inlet valve 17, storehouse pump 18, air intake valve 19, air blast 20, instrument source of the gas 21, discharge valve 22, ash pipeline 23.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is done into some explanation.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of air-cooled dry slag discharging machine with air-transport system, comprises air-cooled dry slag discharging machine 2, cleaning chain falls slag bucket 3, expansion joint 4 and air-transport system 5.Air-cooled dry slag discharging machine 2, is divided into horizontal segment 9, turning section 8 and raising section 7 three part by arrangement, and in air-cooled dry slag discharging machine 2, be provided with conveyer belt 10 and cleaning chain apparatus 11; The horizontal segment 9 of air-cooled dry slag discharging machine 2 is positioned at the bottom of air-cooled dry slag discharging machine 2, and horizontal segment 9 top is connected with burner hearth 1, and one end of horizontal segment 9 is connected with one end of turnaround section 8, and horizontal segment 9 is for receiving the cinder after burner hearth 1 burning; The other end of turnaround section 8 is connected with one end of raising section 7, and the other end of raising section 7 is connected with slag storehouse 6; Air-cooled dry slag discharging machine 2 also comprises conveyer belt driving wheel (not shown), conveyer belt driven pulley (not shown), cleaning chain driving wheel (not shown), cleaning chain driven pulley (not shown), conveyer belt 10 and cleaning chain apparatus 11; Conveyer belt driving wheel and conveyer belt driven pulley are arranged on horizontal segment 9 and the raising section 7 of air-cooled dry slag discharging machine 2 respectively; Cleaning chain driving wheel and cleaning chain driven pulley are arranged on horizontal segment 9 and the turnaround section 8 of air-cooled dry slag discharging machine 2 respectively; Conveyer belt 10 is arranged between conveyer belt driving wheel and conveyer belt driven pulley; Cleaning chain apparatus 11 is arranged between cleaning chain driving wheel and cleaning chain driven pulley; Conveyer belt 10 and cleaning chain apparatus 11 are arranged in parallel up and down in air-cooled dry slag discharging machine 2 inside, wherein one end of not being connected with turnaround section 8 near horizontal segment 9, one end of conveyer belt 10, and the other end is near one end of raising section 7 discharging; One end that the one end cleaning chain apparatus 11 is not connected with turnaround section 8 near horizontal segment 9, the other end is near turnaround section 8 and junction, raising section 7; Cleaning chain falls slag bucket 3 and to be arranged on bottom turnaround section 8 and to be connected with expansion joint 4; Expansion joint 4 is connected with air-transport system 5; Air-transport system 5 is connected with slag storehouse 6;
Cleaning chain falls slag bucket 3 and is made up of charging aperture 12, grid 13, cylindrical shell 14, thin grey discharging opening 15 and cinder discharging opening 16; Wherein, cylindrical shell 14 is T-shaped cylindrical shells wide at the top and narrow at the bottom, and cylindrical shell 14 top connects charging aperture 12, and lower parallel is connected to thin grey discharging opening 15 and cinder discharging opening 16, wherein thin grey discharging opening 15 is near the one side of a cylindrical shell 14 top high position, and cinder discharging opening 16 is then near the one side of cylindrical shell 14 top low level; Grid 13 is one block of steel plate with grid, be arranged on cylindrical shell 14 inner, while be connected with the limit of a cylindrical shell 14 top high position, while be connected with the junction of thin grey discharging opening 15 and cinder discharging opening 16, all the other each limits are connected with cylindrical shell 14, grid 13 is divided into two chambers cylindrical shell 14, and grid 13 bottom is thin grey chamber, and grid 13 top is cinder chamber; The thin grey discharging opening 15 that cleaning chain falls slag bucket 3 is connected with the inlet valve 17 in air-transport system 5; Air-transport system 5 comprises inlet valve 17, storehouse pump 18, air intake valve 19, discharge valve 22, ash pipeline 23, source of the gas (can be air blast 20 or instrument source of the gas 21 or air compressor machine or compressed air gas source); Storehouse pump 18 must be horizontally disposed, and its top is provided with inlet valve 17; The air inlet of storehouse pump 18 is connected with source of the gas by air intake valve 19, gas outlet is connected with slag storehouse 6 by discharge valve 22 and ash pipeline 23.
As shown in Figure 5, a kind of control method of the air-cooled dry slag discharging machine with air-transport system, specifically comprises the following steps:
(1) air-transport system, cleaning chain driving wheel and conveyer belt driving wheel is started successively; Before starting air-transport system, guarantee foreign and putty situation in storehouse pump 18, and confirm that inlet valve 17, intake valve 19 and discharge valve 22 are all in closed condition;
(2) after the cleaning chain apparatus 11 of air-cooled dry slag discharging machine 2 and the conveyer belt 10 of air-cooled dry slag discharging machine 2 all start, first inlet valve 17 is opened, lime-ash enters storehouse pump 18, when the level-sensing device in storehouse pump 18 triggers full level signals or feed time reaches setting value, described feed time reaches setting value and enters storehouse pump 17 than lime-ash and reach many 2 ~ 5 seconds of the time that level-sensing device completely expects that signal triggers, close inlet valve 17, then air intake valve 19 is opened, pressurization fluidisation is carried out to lime-ash in storehouse pump 18, after in storehouse pump 18, pressure reaches setting value, it is 0.2 ~ 0.3mpa that described pressure reaches setting value, the lime-ash in storehouse pump 18 and compressed air is allowed fully to mix, then discharge valve 22 is opened, air-flow is transported to slag storehouse 6 together with the lime-ash in storehouse pump 18, this completes and once carry flow process,
(3) if Ash water completes in storehouse pump 18, in storehouse pump 18, pressure can revert to atmospheric pressure state, if in setting-up time, this setting-up time is than many 30 seconds of the time of the thin ash in conveying satisfactory storehouse pump 18, and in storehouse pump 18, pressure does not also drop to normal pressure, illustrates and pipeline has place to block, have impact on normal conveying, now need to close discharge valve 22, storehouse pump 18 is pressurizeed again, and then opens outlet valve 22 and carry; When once carry flow process to the pressurization number of times of storehouse pump 18 more than 3 times time, stifled serious of pipeline is described, need manually to dredge, at this time system provides fault alarm, and carries out shut-down operation to conveying flow process; If in setting-up time, in storehouse pump 18, pressure drops to normal pressure, and illustrate that conveyance conduit putty failure condition is removed, in storehouse pump 18, material has been carried, and now first closes air intake valve 19, rear closedown discharge valve 22;
(4), when slag drying machine is stopped transport, the first conveyer belt 10 of stoppage in transit air-cooled dry slag discharging machine 2, then the cleaning chain apparatus 11 of stoppage in transit air-cooled dry slag discharging machine 2, air-transport system of finally stopping transport, guarantees that the lime-ash in slag drying machine is all eliminated totally.
The course of work of the present invention is as follows:
Air-cooled dry slag discharging machine 2 operationally, lime-ash drops to the conveyer belt 10 of air-cooled dry slag discharging machine 2 from burner hearth 1, conveyer belt 10 runs counterclockwise and lime-ash is transported to raising section 7 from horizontal segment 9 exports, and direct or by two-stage conveying Ash water in slag storehouse 6.Not only conveyer belt 10 has thin ash in running and cinder drops on the base plate of air-cooled dry slag discharging machine 2, and conveyer belt 10 is when raising section 7 discharging, due to the negative pressure of burner hearth 1, a lot of thin ash and slightly can also can sucked back air-cooled dry slag discharging machine 2, and gather bottom air-cooled dry slag discharging machine 2.When thin ash bottom air-cooled dry slag discharging machine 2 and cinder accumulate to a certain amount of, cleaning chain apparatus 11 brings into operation, thin ash and cinder are carried toward turnaround section 8 place, when being delivered to turnaround section 8 and falling with cleaning chain the position that slag bucket 3 is connected, the charging aperture 12 that thin ash and cinder fall slag bucket 3 from cleaning chain enters cylindrical shell 14, and first drop on grid 13, now thin ash enters thin grey chamber by grid 14, and pile up in thin grey chamber, cinder can't pass grid 13, under its Action of Gravity Field, call in cinder chamber, and pile up in cinder chamber.When ash thin in thin grey chamber is piled up enough, the inlet valve 17 of air-transport system 5 is opened, thin ash enters storehouse pump 18, and when having piled with thin ash in storehouse pump 18 or having entered storehouse pump 18 without thin ash, inlet valve 17 cuts out, discharge valve 22 is closed, air intake valve 19 is opened, instrument with source of the gas 21 toward gas injection in storehouse pump 18, after in storehouse pump 18, pressure reaches certain value, discharge valve 22 is opened, and the thin ash now in storehouse pump 18 is delivered to slag storehouse 6 under gas pressure.After the thin ash in storehouse pump 18 has been carried, inlet valve 17 has fallen the quantity of thin ash in slag bucket 3 according to cleaning chain, and follow procedure sets, and determines whether open inlet valve 17, carries out defeated grey flow process again.

Claims (6)

1. the air-cooled dry slag discharging machine with air-transport system, for collecting the lime-ash dropped after burner hearth (1) burns, it is characterized in that, comprise air-cooled dry slag discharging machine (2), cleaning chain falls slag bucket (3), expansion joint (4) and air-transport system (5) etc.; Wherein, described air-cooled dry slag discharging machine (2) is arranged in burner hearth (1) bottom, described air-cooled dry slag discharging machine (2) comprises raising section (7), turnaround section (8) and horizontal segment (9), and raising section (7), turnaround section (8) are connected successively with horizontal segment (9); The horizontal segment (9) of air-cooled dry slag discharging machine (2) is connected with burner hearth (1), for receiving the lime-ash dropped after burner hearth (1) burns; The top of raising section (7) has discharging opening, and described discharging opening is connected with slag storehouse (6); Turnaround section (8) lower surface of air-cooled dry slag discharging machine (2) has lime-ash discharging opening, and cleaning chain falls slag bucket (3) and arranges below turnaround section (8), and is connected with lime-ash discharging opening; The upper end of expansion joint (4) connects cleaning chain and falls slag bucket (3), and lower end connects air-transport system (5); Air-transport system (5) connects slag storehouse (6).
2. the air-cooled dry slag discharging machine of the band air-transport system according to claims 1, it is characterized in that, described air-cooled dry slag discharging machine (2) also comprises conveyer belt driving wheel, conveyer belt driven pulley, cleaning chain driving wheel, cleaning chain driven pulley, conveyer belt (10) and cleaning chain apparatus (11); Conveyer belt driving wheel and conveyer belt driven pulley are arranged on horizontal segment (9) and raising section (7) of air-cooled dry slag discharging machine (2) respectively; Cleaning chain driving wheel and cleaning chain driven pulley are arranged on horizontal segment (9) and the turnaround section (8) of air-cooled dry slag discharging machine (2) respectively; Conveyer belt (10) is arranged between conveyer belt driving wheel and conveyer belt driven pulley; Cleaning chain apparatus (11) is arranged between cleaning chain driving wheel and cleaning chain driven pulley; Described conveyer belt (10) and cleaning chain apparatus (11) are arranged in parallel up and down in air-cooled dry slag discharging machine (2) inside, and conveyer belt (10) is positioned at the top of cleaning chain apparatus (11).
3. the air-cooled dry slag discharging machine of the band air-transport system according to claims 1, it is characterized in that, described cleaning chain falls slag bucket (3) and is made up of charging aperture (12), grid (13), cylindrical shell (14), thin grey discharging opening (15) and cinder discharging opening (16); Cylindrical shell (14) is a cylindrical shell wide at the top and narrow at the bottom, the top of cylindrical shell (14) is connected with charging aperture (12), lower parallel is connected to thin grey discharging opening (15) and cinder discharging opening (16), the side that thin grey discharging opening (15) is high-order near raising section (7), cinder discharging opening (16) is near the side of raising section (7) low level; Grid (13) is one block of steel plate with grid, be arranged in cylindrical shell (14), grid (13) while be connected with the limit of cylindrical shell (14) top high position, its opposite side is connected with the junction of cinder discharging opening (16) with thin grey discharging opening (15), and all the other each limits are connected with cylindrical shell (14); Charging aperture (12) is connected with lime-ash discharging opening.
4. the air-cooled dry slag discharging machine of the band air-transport system according to claims 3, it is characterized in that, cylindrical shell (14) is divided into two chambers by described grid (13), the bottom of grid (13) is thin grey chamber, and the top of grid (13) is cinder chamber.
5. the air-cooled dry slag discharging machine of the band air-transport system according to claims 1, it is characterized in that, described air-transport system (5) comprises inlet valve (17), storehouse pump (18), air intake valve (19), source of the gas, outlet valve (22) and ash pipeline (23); Storehouse pump (18) is horizontally disposed, and inlet valve (17) is installed on its top; The air inlet of storehouse pump (18) by air intake valve (19) with connect that source of the gas is connected, gas outlet is connected with slag storehouse (6) by discharge valve (22) and ash pipeline (23); Inlet valve (17) is connected with expansion joint (4).
6. the control method of the air-cooled dry slag discharging machine of band air-transport system according to claim 1, is characterized in that, specifically comprise the following steps:
(1) air-transport system, cleaning chain driving wheel and conveyer belt driving wheel is started successively; Before starting air-transport system, guarantee storehouse pump (18) interior foreign and putty situation, and confirm that inlet valve (17), intake valve (19) and discharge valve (22) are all in closed condition;
(2) after the cleaning chain apparatus (11) of air-cooled dry slag discharging machine (2) and the conveyer belt (10) of air-cooled dry slag discharging machine (2) all start, first inlet valve (17) is opened, lime-ash enters storehouse pump (18), when the level-sensing device in storehouse pump (18) triggers full level signals or feed time reaches setting value, described feed time reaches setting value and enters storehouse pump (17) than lime-ash and reach many 2 ~ 5 seconds of the time that level-sensing device completely expects that signal triggers, close inlet valve (17), then air intake valve (19) is opened, pressurization fluidisation is carried out to storehouse pump (18) interior lime-ash, after in storehouse pump (18), pressure reaches setting value, it is 0.2 ~ 0.3mpa that described pressure reaches setting value, the lime-ash in storehouse pump (18) and compressed air is allowed fully to mix, then discharge valve (22) is opened, air-flow is transported to slag storehouse (6) together with the lime-ash in storehouse pump (18), this completes and once carry flow process,
(3) if storehouse pump (18) interior Ash water completes, storehouse pump (18) interior pressure can revert to atmospheric pressure state, if in setting-up time, this setting-up time is than many 30 seconds of the time of the thin ash in conveying satisfactory storehouse pump (18), storehouse pump (18) interior pressure does not also drop to normal pressure, illustrate and pipeline has place to block, have impact on normal conveying, now need to close discharge valve (22), storehouse pump (18) is pressurizeed again, and then opens outlet valve (22) and carry; When once carry flow process to the pressurization number of times of storehouse pump (18) more than 3 times time, stifled serious of pipeline is described, need manually to dredge, at this time system provides fault alarm, and carries out shut-down operation to conveying flow process; If in setting-up time, storehouse pump (18) interior pressure drops to normal pressure, and illustrate that conveyance conduit putty failure condition is removed, storehouse pump (18) interior material has been carried, now first close air intake valve (19), rear closedown discharge valve (22);
(4) when slag drying machine is stopped transport, first to stop transport the conveyer belt (10) of air-cooled dry slag discharging machine (2), then to stop transport the cleaning chain apparatus (11) of air-cooled dry slag discharging machine (2), finally to stop transport air-transport system, guarantee that the lime-ash in slag drying machine is all eliminated totally.
CN201510622760.0A 2015-09-25 2015-09-25 Air-cooled dry slag extractor with pneumatic transmission system and control method of air-cooled dry slag extractor Pending CN105180185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510622760.0A CN105180185A (en) 2015-09-25 2015-09-25 Air-cooled dry slag extractor with pneumatic transmission system and control method of air-cooled dry slag extractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510622760.0A CN105180185A (en) 2015-09-25 2015-09-25 Air-cooled dry slag extractor with pneumatic transmission system and control method of air-cooled dry slag extractor

Publications (1)

Publication Number Publication Date
CN105180185A true CN105180185A (en) 2015-12-23

Family

ID=54902458

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510622760.0A Pending CN105180185A (en) 2015-09-25 2015-09-25 Air-cooled dry slag extractor with pneumatic transmission system and control method of air-cooled dry slag extractor

Country Status (1)

Country Link
CN (1) CN105180185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106765232A (en) * 2016-12-16 2017-05-31 大唐东北电力试验研究所有限公司 The dry deslagging controlled using resistance variation tendency locks wind system
CN107741021A (en) * 2017-10-31 2018-02-27 史震伟 A kind of air-cooled slag drying machine clinker sensible heat reclaiming system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1493966A1 (en) * 2002-04-10 2005-01-05 Ebara Corporation Ash fusing system, method of operating the system, and gasification fusing system for waste
CN203718804U (en) * 2014-01-21 2014-07-16 杭州元珑环境工程有限公司 Air-cooling-type dry slag discharging machine with head sorting device
CN204307696U (en) * 2014-12-05 2015-05-06 杭州华源前线能源设备有限公司 The novel post processing induction system of dry slag extractor
CN205014392U (en) * 2015-09-25 2016-02-03 杭州元珑环境工程有限公司 Take air -cooled slag extractor of doing of air conveying system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1493966A1 (en) * 2002-04-10 2005-01-05 Ebara Corporation Ash fusing system, method of operating the system, and gasification fusing system for waste
CN203718804U (en) * 2014-01-21 2014-07-16 杭州元珑环境工程有限公司 Air-cooling-type dry slag discharging machine with head sorting device
CN204307696U (en) * 2014-12-05 2015-05-06 杭州华源前线能源设备有限公司 The novel post processing induction system of dry slag extractor
CN205014392U (en) * 2015-09-25 2016-02-03 杭州元珑环境工程有限公司 Take air -cooled slag extractor of doing of air conveying system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106765232A (en) * 2016-12-16 2017-05-31 大唐东北电力试验研究所有限公司 The dry deslagging controlled using resistance variation tendency locks wind system
CN106765232B (en) * 2016-12-16 2023-04-07 大唐东北电力试验研究所有限公司 Dry slag discharging and air locking system controlled by resistance variation trend
CN107741021A (en) * 2017-10-31 2018-02-27 史震伟 A kind of air-cooled slag drying machine clinker sensible heat reclaiming system
CN107741021B (en) * 2017-10-31 2019-07-23 史震伟 A kind of air-cooled slag drying machine clinker sensible heat reclaiming system

Similar Documents

Publication Publication Date Title
CN102009849B (en) Pneumatic conveying method for powder materials
CN201362508Y (en) Stone coal subpressure pneumatic conveying system
CN102009848B (en) Positive-negative integrated conveying system device of multifunctional pump
CN106516753A (en) Storehouse pump ash conveying device
CN108657822A (en) A kind of mud positive pneumatic conveying system
CN105180185A (en) Air-cooled dry slag extractor with pneumatic transmission system and control method of air-cooled dry slag extractor
CN103600938A (en) Automatic coal dredging device for raw coal conveying system in thermal power plant
CN203255682U (en) Dry-type pebble coal pipe chain conveying system
CN206407636U (en) Blow tank conveying device
CN205014392U (en) Take air -cooled slag extractor of doing of air conveying system
CN212798753U (en) Dust remover ash discharge system
CN201313067Y (en) Negative pressure conveying system for pebble coal
KR102051166B1 (en) Method for transporting impurities in pressurized fluidized furnace system
CN214217524U (en) Coal conveying device with low dust
CN207986182U (en) A kind of pebble coal positive pressure pneumatic conveying device
CN202089599U (en) Ash conveying system for economizer
CN101804380B (en) High-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal
CN207957120U (en) A kind of powder delivery system
CN206927271U (en) The Anti-blocking structure of Industrial Boiler electric precipitation pneumatic ash transmitting system
CN106439872A (en) Boiler slag and dust removing equipment
CN202082939U (en) Fly ash conveying mechanism of boiler economizer
CN210456601U (en) Long-distance pneumatic conveying system for bag dust collection zinc ash
CN201619819U (en) Self-adapting stone coal feed apparatus
CN110360570A (en) A kind of TDI coke burn before pretreatment system
CN202704567U (en) Electric dust removal and ash conveying device of three-waste furnace

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20151223

WD01 Invention patent application deemed withdrawn after publication