CN107824327A - Coal feeder protection system device and its application method - Google Patents

Coal feeder protection system device and its application method Download PDF

Info

Publication number
CN107824327A
CN107824327A CN201710997319.XA CN201710997319A CN107824327A CN 107824327 A CN107824327 A CN 107824327A CN 201710997319 A CN201710997319 A CN 201710997319A CN 107824327 A CN107824327 A CN 107824327A
Authority
CN
China
Prior art keywords
coal
parts
feeder
protection system
system device
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
CN201710997319.XA
Other languages
Chinese (zh)
Inventor
钟志敏
林建华
王韬
许明阳
窦长江
黄增袖
孙利广
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.)
China Resources Power Hezhou Co Ltd
Original Assignee
China Resources Power Hezhou Co Ltd
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 China Resources Power Hezhou Co Ltd filed Critical China Resources Power Hezhou Co Ltd
Priority to CN201710997319.XA priority Critical patent/CN107824327A/en
Publication of CN107824327A publication Critical patent/CN107824327A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02Feeding devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/04Safety devices

Abstract

The invention discloses a kind of coal feeder protection system device and its application method, is related to feeder dredger field.The coal feeder protection system device, applied to feeder, the feeder includes a cylinder, one end of the cylinder offers a coal outlet, the coal outlet connects a coal pulverizer, the cylinder is equiped with the spray header of the connection coal outlet close to one end of the coal pulverizer, the spray header includes the first pipeline and second pipe being connected, first pipeline is installed in the cylinder close to one end of the coal pulverizer, and coal outlet described in first pipeline communication, the one end of the second pipe away from first pipeline connects a water inlet pipe, one control ball valve is installed on the second pipe, first pipeline and the second pipe it is in 90 °~180 ° of angles.The coal feeder protection system device and its application method of the present invention, simple to operate, efficiency high, can make equipment safety stable operation.

Description

Coal feeder protection system device and its application method
Technical field
The present invention relates to feeder dredger field, and in particular to a kind of coal feeder protection system device and its application method.
Background technology
Feeder is applied to thermal power plant coal furnace pulverized coal preparation system, comprising coal bunker outlet coal gate, top coal spout and Adjustable joint, feeder main frame, coal breakage bucket, feeder outlet coal gate, bottom coal spout and adjustable joint, microcomputer control The part such as system forms.Coal in coal store enters feeder by coal gate, is connected by the conveying metering adhesive tape inside feeder In continuous uniformly conveying coal pulverizer, boiler performance can be improved in the range of very big load change, realize continuous uniform to coal, can be Coal is accurately weighed to during coal, and coal-supplying amount is automatically adjusted according to the feedback signal of combustion system, is coal-fired pot Coal equipment is given in the advanced metering to match in stove pulverized coal preparation system with coal pulverizer.
Low speed coal mill is one of thermal power plant major pant item, includes motor, reductor, big little gear, rotation Conveyer, cylinder, hot blast box etc. form, and are the main equipments of boiler coal dust burning preparation system.The raw coal that feeder conveying comes Delivered to through low speed coal mill rotation conveyer lower half in coal-grinding machine drum body, raw coal in cylinder by with the colliding of steel ball, squeeze Pressure, grinding become coal dust;First air enters cylinder through hot blast box, rotation conveyer hollow tube, and the coal dust ground is passed through into rotation Turn the conveyer first half and be transported to the burning of boiler tissue.
Because low speed coal mill rotation conveyer auger piece can not scrape coal pulverizer charging tipping bucket region, coal pulverizer charging is oblique Bucket easily accumulation coal dust, if dieseling occurs in cleaning not in time.Especially when the wetter viscosity of raw coal is big, when coal pulverizer is run very Easily there is charging tipping bucket accumulation coal slime, cause coal feeding pipe clogging.In real work, when discovery coal pulverizer mixing air compartment Or during charging tipping bucket temperature anomaly, general stoppage in transit coal pulverizer and feeder, then open feeder port of export inspection door and carry out manually Pour water desuperheat or dredging coal chute.
When stopping unilateral feeder maintenance, after feeder outlet coal gate is closed, certain thickness raw coal, still occurs in pressure Plate is poorly sealed to cause coal pulverizer hot blast anti-channeling to enter feeder, when now opening feeder inspection door, the spray of hot blast powder easily occurs Go out to hurt sb.'s feelings, pollute environment.In actually overhauling, open feeder port of export inspection door and emit hot blast powder to feeder outlet coal lock Door water drenching, convenient follow-up maintenance.Therefore, open feeder port of export inspection door carry out manual priming's desuperheat or dredging coal chute or Coal gate water drenching is exported to feeder, significant limitation and insecurity be present.Be mainly reflected in it is following some:(1) send out It when existing coal pulverizer mixing air compartment or charging tipping bucket temperature anomaly, the short time can not stop coal pulverizer, handle abnormal, even Cause abnormal expansion;(2) opening feeder port of export inspection door draws water pipe to pour water, and easily causes hot vapour water, hot gas and carbon monoxide Toxic gas, which sprays, hurts sb.'s feelings, and larger security risk be present;(3) per treatment, operations staff need to spend more than half an hour to perform safety Measure, but be still unavoidable from coal dust race and emit, pollute environment;(4), can not the short time when feeder breaks coal or coal bunker hole capital after selling all securities Solve hot blast anti-channeling phenomenon, or even cause raw coal (particularly Indonesia coal class high volatile coal) is on fire burn out belt, burn run coal bin Phenomenon.
The content of the invention
In view of the above-mentioned problems, it is necessary to provide a kind of coal feeder protection system device and its application method.The coal feeder protection system fills Put and its application method, simple to operate, efficiency high, equipment safety stable operation can be made.
To achieve these goals, the technical solution adopted by the present invention is as follows:
A kind of coal feeder protection system device, applied to feeder, the feeder includes a cylinder, and one end of the cylinder is opened Provided with a coal outlet, the coal outlet connects a coal pulverizer, and the cylinder is equiped with a connection close to one end of the coal pulverizer The spray header of the coal outlet, the spray header include the first pipeline and second pipe being connected, first pipeline The cylinder is installed in close to one end of the coal pulverizer, and coal outlet described in first pipeline communication, the second pipe One end away from first pipeline connects a water inlet pipe, and a control ball valve, first pipe are provided with the second pipe Road and the second pipe it is in 90 °~180 ° of angles.
Preferably, a water intaking valve is installed on the water inlet pipe.
Preferably, the relatively described cylinder vertical design of first pipeline.
Preferably, the internal diameter size of first pipeline and the second pipe is 12~25mm.
Preferably, the coal pulverizer is equiped with a charging tipping bucket, and the coal pulverizer passes through described in the charging tipping bucket connection Coal outlet.
Preferably, the spray header is made using exotic material.
Preferably, the exotic material includes following constituent by weight:Dimaleoyl imino hexichol 50~80 parts of methane, 5~9 parts of 4- cyano group -4- (thio benzoylthio) valeric acid, 20~30 parts of aryl allyl alkyl phenol, tetrahydrochysene 3~7 parts of phthalic anhydride, 4~8 parts of DMAP, 15~35 parts of glycerine poly glycidyl ester, NVP 1 ~3 parts, double (2,3- epoxy cyclopentyl) 25~45 parts of ethers, 10~18 parts of diethyl phosphite, tert-butyl hydroperoxide laurate 1~2 part of ester, 2~8 parts of silica, 2~4 parts of alundum (Al2O3), 1~2 part of iron oxide, 1~2 part of titanium oxide, calcium oxide 1~2 Part, 2~6 parts of magnesia, 1~3 part of potassium oxide, 1~3 part of sodium oxide molybdena, 5~11 parts of lubricant, 3~11 parts of plasticizer and thermostabilization 2~14 parts of agent.
Preferably, the lubricant is barium stearate, and the plasticizer is phthalic acid or chlorinated paraffin, the thermostabilization Agent is second base lead sulfate or titanium dioxide.
A kind of application method of coal feeder protection system device, it is characterised in that comprise the following steps:
(1) when finding the charging tipping bucket temperature anomaly of coal pulverizer, in the coal pulverizer and the feeder of not stopping transport In the case of, the water inlet pipe is connected into the second pipe rapidly;
(2) water intaking valve and the control ball valve are opened, to be sprayed to the coal outlet and the charging tipping bucket;
(3) when need the feeder is overhauled when, open the water intaking valve and the control ball valve in advance, with to The coal outlet and the charging tipping bucket are sprayed, and prevent hot blast powder anti-channeling.
Due to using above-mentioned technical proposal, the invention has the advantages that:
Coal feeder protection system device provided by the invention and its application method, when finding coal pulverizer temperature anomaly or needs When being overhauled to feeder, sprayed water by spray header to the coal outlet of feeder, the water of spray header passes through coal outlet stream Charging tipping bucket to coal pulverizer, with the coal dust of dredging accumulation, while equipment is cooled, prevent hot blast powder anti-channeling.
Coal feeder protection system device provided by the invention and its application method, answered using modified span compound with alkene Close, by adding rational material, melting is compound to obtain the water pipe of high-strength high temperature-resistant, on the one hand greatly improves the resistance to of system It is hot, the water pipe of good mechanical properties is on the other hand obtained, especially by doping inorganic particulate, reduces organic-inorganic phase Between boundary defect, greatly improve the ageing-resistant performance of water pipe, solve existing supplying pipe low intensity, resistance to heat differential is asked Topic.
Brief description of the drawings
Fig. 1 is the structural representation for the coal feeder protection system device that embodiment of the present invention provides.
In accompanying drawing, 1- feeders, 2- cylinders, 3- coal outlets, 4- coal pulverizers, 5- charging tipping buckets, 6- spray headers, 7- first Pipeline, 8- second pipes, 9- control ball valves.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
It should be noted that when component is referred to as " being fixed on " another component, it can be directly on another component Or there may also be component placed in the middle.When a component is considered as " connection " another component, it can be directly connected to To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being arranged at " another component, it Can be set directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases The arbitrary and all combination of the Listed Items of pass.
Embodiment 1
Fig. 1 is referred to, embodiment of the present invention provides a kind of coal feeder protection system device, applied to feeder 1.Feeder 1 Including a cylinder 2, one end of cylinder 2 offers a coal outlet 3, and coal outlet 3 connects a coal pulverizer 4.Coal in feeder 1 passes through Coal outlet 3 is transported in coal pulverizer 4.Coal pulverizer 4 is equiped with a charging tipping bucket 5, and coal pulverizer 4 is produced coal by feeding the connection of tipping bucket 5 Mouth 3.Cylinder 2 is equiped with the spray header 6 of a connection coal outlet 3 close to one end of coal pulverizer 4.In the present embodiment, spray Water pipe 6 is made using exotic material.The exotic material includes following constituent by weight:Bismaleimide 50 parts of amido diphenyl-methane, 5 parts of 4- cyano group -4- (thio benzoylthio) valeric acid, 20 parts of aryl allyl alkyl phenol, THPA 3 parts, 4 parts of DMAP, 15 parts of glycerine poly glycidyl ester, 1 part of NVP, double (2,3- epoxies Cyclopentyl) 25 parts of ether, 10 parts of diethyl phosphite, 1 part of tert-butyl hydroperoxide laurate, 2 parts of silica, three oxidation two 2 parts of aluminium, 1 part of iron oxide, 1 part of titanium oxide, 1 part of calcium oxide, 2 parts of magnesia, 1 part of potassium oxide, 1 part of sodium oxide molybdena, 5 parts of lubricant, 2 parts of 3 parts of plasticizer and heat stabilizer.The lubricant is barium stearate, and the plasticizer is phthalic acid, the heat stabilizer For second base lead sulfate.
Spray header 6 includes the first pipeline 7 and second pipe 8 being connected.First pipeline 7 and second pipe 8 it is in 90 °~ The internal diameter size of 180 ° of angles, the first pipeline 7 and second pipe 8 is 12~25mm.In the present embodiment, the He of the first pipeline 7 Second pipe 8 is at an angle of 90.The internal diameter size of first pipeline 7 and second pipe 8 is 20mm.First pipe 7 is installed in cylinder 2 One end of close coal pulverizer 4, and the 7 relative vertical design of cylinder 2 of the first pipeline.First pipeline 7 connects coal outlet 3.Second pipe 8 One end away from the first pipeline 7 connects a water inlet pipe (not shown), and a water intaking valve (not shown) is provided with the water inlet pipe, uses Flowing water speed in the control water inlet pipe.One control ball valve 9 is installed, for controlling in second pipe 8 on second pipe 8 Flowing water speed.
The application method of the coal feeder protection system device, comprises the following steps:
(1) when finding charging 5 temperature anomaly of tipping bucket of coal pulverizer 4, in the situation of coal pulverizer 4 and feeder 1 of not stopping transport Under, the water inlet pipe is connected into second pipe 8 rapidly;
(2) water intaking valve and control ball valve 9 are opened, to be sprayed to coal outlet 3 and charging tipping bucket 5;
(3) when needing to overhaul feeder 1, the water intaking valve and control ball valve 9 are opened in advance, with to coal outlet 3 are sprayed with charging tipping bucket 5, prevent hot blast powder anti-channeling.
Embodiment 2
In the present embodiment, in addition to the parts by weight difference of the constituent of the exotic material, other with implementation Example 1 is identical.
In the present embodiment, the exotic material includes following constituent by weight:BMI 65 parts of base diphenyl-methane, 7 parts of 4- cyano group -4- (thio benzoylthio) valeric acid, 25 parts of aryl allyl alkyl phenol, THPA 5 Part, 6 parts of DMAP, 25 parts of glycerine poly glycidyl ester, 2 parts of NVP, double (2,3- epoxy radicals Cyclopenta) 35 parts of ether, 14 parts of diethyl phosphite, 1.5 parts of tert-butyl hydroperoxide laurate, 5 parts of silica, three oxidation two 3 parts of aluminium, 1.5 parts of iron oxide, 1.5 parts of titanium oxide, 1.5 parts of calcium oxide, 4 parts of magnesia, 2 parts of potassium oxide, 2 parts of sodium oxide molybdena, lubrication 8 parts of 8 parts of agent, 7 parts of plasticizer and heat stabilizer.
Embodiment 3
In the present embodiment, except the exotic material constituent parts by weight, described plasticiser component, the heat Outside stabilizer element difference, other are same as Example 1.
In the present embodiment, the exotic material includes following constituent by weight:BMI 80 parts of base diphenyl-methane, 9 parts of 4- cyano group -4- (thio benzoylthio) valeric acid, 30 parts of aryl allyl alkyl phenol, THPA 7 Part, 8 parts of DMAP, 35 parts of glycerine poly glycidyl ester, 3 parts of NVP, double (2,3- epoxy radicals Cyclopenta) 45 parts of ether, 18 parts of diethyl phosphite, 2 parts of tert-butyl hydroperoxide laurate, 8 parts of silica, alundum (Al2O3) 4 parts, 2 parts of iron oxide, 2 parts of titanium oxide, 2 parts of calcium oxide, 6 parts of magnesia, 3 parts of potassium oxide, 3 parts of sodium oxide molybdena, 11 parts of lubricant, increase Mould 14 parts of 11 parts of agent and heat stabilizer.The lubricant is barium stearate, and the plasticizer is chlorinated paraffin, the heat stabilizer For titanium dioxide.
Described above is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair Bright patent claim, the equal change completed or modification change under the technical spirit suggested by all present invention, all should belong to Cover the scope of the claims in the present invention.

Claims (9)

1. a kind of coal feeder protection system device, applied to feeder, the feeder includes a cylinder, and one end of the cylinder opens up There is a coal outlet, the coal outlet connects a coal pulverizer, it is characterised in that:The cylinder is installed close to one end of the coal pulverizer There is the spray header of the connection coal outlet, the spray header includes the first pipeline and second pipe being connected, described First pipeline is installed in the cylinder close to one end of the coal pulverizer, and coal outlet described in first pipeline communication, described The one end of second pipe away from first pipeline connects a water inlet pipe, and a control ball valve, institute are provided with the second pipe State the first pipeline and the second pipe it is in 90 °~180 ° of angles.
2. coal feeder protection system device as claimed in claim 1, it is characterised in that:One water intaking valve is installed on the water inlet pipe.
3. coal feeder protection system device as claimed in claim 1, it is characterised in that:The relatively described cylinder of first pipeline is vertical Design.
4. coal feeder protection system device as claimed in claim 1, it is characterised in that:First pipeline and the second pipe Internal diameter size is 12~25mm.
5. coal feeder protection system device as claimed in claim 1, it is characterised in that:The coal pulverizer is equiped with a charging tipping bucket, The coal pulverizer connects the coal outlet by the charging tipping bucket.
6. coal feeder protection system device as claimed in claim 1, it is characterised in that:The spray header uses exotic material system Make.
7. coal feeder protection system device as claimed in claim 6, it is characterised in that:The exotic material include it is following by weight The constituent of part meter:50~80 parts of dimaleoyl imino diphenyl-methane, 4- cyano group -4- (thio benzoylthio) valeric acid 5 ~9 parts, 20~30 parts of aryl allyl alkyl phenol, 3~7 parts of THPA, 4~8 parts of DMAP, glycerine bunching water 15~35 parts of glyceride, 1~3 part of NVP, double (2,3- epoxy cyclopentyl) 25~45 parts of ethers, phosphorous acid two 10~18 parts of ethyl ester, 1~2 part of tert-butyl hydroperoxide laurate, 2~8 parts of silica, 2~4 parts of alundum (Al2O3), oxidation 1~2 part of iron, 1~2 part of titanium oxide, 1~2 part of calcium oxide, 2~6 parts of magnesia, 1~3 part of potassium oxide, 1~3 part of sodium oxide molybdena, profit 2~14 parts of 5~11 parts of lubrication prescription, 3~11 parts of plasticizer and heat stabilizer.
8. coal feeder protection system device as claimed in claim 7, it is characterised in that:The lubricant is barium stearate, the increasing It is phthalic acid or chlorinated paraffin to mould agent, and the heat stabilizer is second base lead sulfate or titanium dioxide.
A kind of 9. application method of coal feeder protection system device as described in any one of claim 1~8, it is characterised in that including Following steps:
(1) when finding the charging tipping bucket temperature anomaly of coal pulverizer, in the situation of the coal pulverizer and the feeder of not stopping transport Under, the water inlet pipe is connected into the second pipe rapidly;
(2) water intaking valve and the control ball valve are opened, to be sprayed to the coal outlet and the charging tipping bucket;
(3) when needing to overhaul the feeder, the water intaking valve and the control ball valve are opened in advance, with to described Coal outlet and the charging tipping bucket are sprayed, and prevent hot blast powder anti-channeling.
CN201710997319.XA 2017-10-20 2017-10-20 Coal feeder protection system device and its application method Pending CN107824327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710997319.XA CN107824327A (en) 2017-10-20 2017-10-20 Coal feeder protection system device and its application method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710997319.XA CN107824327A (en) 2017-10-20 2017-10-20 Coal feeder protection system device and its application method

Publications (1)

Publication Number Publication Date
CN107824327A true CN107824327A (en) 2018-03-23

Family

ID=61648841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710997319.XA Pending CN107824327A (en) 2017-10-20 2017-10-20 Coal feeder protection system device and its application method

Country Status (1)

Country Link
CN (1) CN107824327A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2633806Y (en) * 2003-09-10 2004-08-18 周利庆 Dredging device for coal bunker blocking water cannon
CN202322878U (en) * 2011-10-31 2012-07-11 李观升 Tuyere-front airless mechanical conveying metering coal supplying device
CN204358758U (en) * 2014-12-13 2015-05-27 山东永泰化工有限公司 A kind of coal feeder protection system device
CN205447730U (en) * 2015-12-29 2016-08-10 大同煤矿集团有限责任公司 Power station feeder fire protection system
CN106674873A (en) * 2016-12-29 2017-05-17 江阴标榜汽车部件有限公司 High-strength high temperature-resisting cooling water pipe for saloon car and preparation method thereof
CN207592041U (en) * 2017-10-20 2018-07-10 华润电力(贺州)有限公司 Coal feeder protection system device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2633806Y (en) * 2003-09-10 2004-08-18 周利庆 Dredging device for coal bunker blocking water cannon
CN202322878U (en) * 2011-10-31 2012-07-11 李观升 Tuyere-front airless mechanical conveying metering coal supplying device
CN204358758U (en) * 2014-12-13 2015-05-27 山东永泰化工有限公司 A kind of coal feeder protection system device
CN205447730U (en) * 2015-12-29 2016-08-10 大同煤矿集团有限责任公司 Power station feeder fire protection system
CN106674873A (en) * 2016-12-29 2017-05-17 江阴标榜汽车部件有限公司 High-strength high temperature-resisting cooling water pipe for saloon car and preparation method thereof
CN207592041U (en) * 2017-10-20 2018-07-10 华润电力(贺州)有限公司 Coal feeder protection system device

Similar Documents

Publication Publication Date Title
CN107504500A (en) A kind of plasma Incinerating and melting system for handling ashes and clinker and the method using system processing ashes and clinker
CN207592041U (en) Coal feeder protection system device
CN105950824B (en) A kind of oxygen, combustion, the arc furnace steeling process of pulvis coenosarc injection
CN207774237U (en) Flying dust closed conveying device after chelating
CN107824327A (en) Coal feeder protection system device and its application method
CN201748800U (en) Box-type alloy baking furnace
CN205227341U (en) A charge -in system for waste incineration preliminary treatment
CN205500279U (en) Vortex revolves air conveying equipment that floats
CN109353825A (en) A kind of granular material preheating Pneumatic conveyer and technique
CN207390481U (en) The grey transport system of purification
CN207418781U (en) System is sprayed using the blast-furnace coal powder system of system negative pressure prevention pulverized coal bin fire
CN207394872U (en) A kind of plasma Incinerating and melting system for handling ashes and clinker
CN104641003A (en) Slag removal device and slag removal method
CN106048110B (en) It is a kind of to be realized using bf coal injection system by the method for air port spray titanium furnace retaining
CN104411839B (en) Slag removal device
CN208307743U (en) A kind of mixing conveyer of powdered modified explosive
CN109882855A (en) Ash comprehensive utilization processing system and method
CN201102971Y (en) On-line stove-protecting and feeding device of iron-smelting blast furnace
CN209442277U (en) A kind of granular material preheating Pneumatic conveyer
CN201828133U (en) Coal powder injection device with auxiliary discharge pipe
CN216205359U (en) Torpedo tank feeding system with scrap steel preheating function
CN216408990U (en) A feed arrangement and sludge incinerator for sludge incinerator
CN103803259B (en) A kind of for the metallic particles material helix transporting device under hot environment
CN206410147U (en) The defeated slag system of steam power plant
CN201589285U (en) Double-roller type residue feeder

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180323