CN115121392B - Pulverized coal nozzle of blast furnace - Google Patents
Pulverized coal nozzle of blast furnace Download PDFInfo
- Publication number
- CN115121392B CN115121392B CN202210893251.1A CN202210893251A CN115121392B CN 115121392 B CN115121392 B CN 115121392B CN 202210893251 A CN202210893251 A CN 202210893251A CN 115121392 B CN115121392 B CN 115121392B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- auxiliary
- pipe
- main pipe
- water
- 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.)
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- 239000003245 coal Substances 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 33
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000002817 coal dust Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 description 12
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1481—Spray pistols or apparatus for discharging particulate material
- B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1431—Arrangements for supplying particulate material comprising means for supplying an additional liquid
Landscapes
- Blast Furnaces (AREA)
Abstract
The invention belongs to the field of pressure release valves, and particularly relates to a blast furnace pulverized coal nozzle, which comprises a main pipe, wherein an outer circular surface of the main pipe is connected with an auxiliary box, one end of the main pipe far away from the auxiliary box is connected with an auxiliary pipe in a sliding manner, one end of the auxiliary pipe far away from the main pipe is provided with a conical surface and a plurality of slideways deviating from the axis of the auxiliary pipe are arranged on the conical surface, each slideway is connected with an inclined block in a sliding manner, the end surface of the auxiliary pipe close to the slideway is provided with a cylindrical valve core, a rectangular groove is arranged in the valve core, an L-shaped channel with a rectangular section is formed between the rectangular groove and the inclined block, a pressing plate is arranged outside the end surface of the valve core, the pressing plate is connected with the end surface of the valve core through a first spring, the outer circular surface of the valve core is connected with a sliding sleeve in a sliding manner, one end surface of the sliding sleeve is jointed with the pressing plate, the other end surface of the sliding sleeve is jointed with the inclined block, a plurality of through holes are arranged on the sliding sleeve, the through holes obliquely intersect with the axis of the sliding sleeve and the inclined opening faces away from the auxiliary pipe, and a rubber ring is sleeved on the inclined block. Flame backflow can be prevented and impact resistance can be achieved.
Description
Technical Field
The invention belongs to the field of steel smelting, and particularly relates to a blast furnace pulverized coal nozzle.
Background
Along with the continuous reduction of the resources of the Chinese coal mine, the position of the blast furnace coal dust in the steel smelting process link is increasingly improved. The blast furnace coal powder replaces part of coke, so that on one hand, the air pollution caused by coking can be reduced; on the other hand, the situation of shortage of supply and demand of coking coal can be greatly relieved, but the existing coal powder nozzle can inevitably encounter the problem of flame backflow after mixing the combustion improver, and the danger of explosion even occurs in special situations. It is therefore extremely important to design a pulverized coal nozzle for a blast furnace that can effectively prevent the assembly backflow.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a blast furnace pulverized coal nozzle which can change continuous pulverized coal injection into continuous intermittent injection to prevent flame backflow.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a blast furnace coal powder nozzle, includes the main pipe, connect the auxiliary tank on the outer disc of being responsible for, be equipped with the joint that two the same intercommunication buggy spouts chamber and buggy combustion improver respectively on the auxiliary tank, the one end sliding connection auxiliary pipe that is kept away from the auxiliary tank is responsible for, the one end that the auxiliary pipe kept away from the main pipe is equipped with the circular conical surface and is equipped with a plurality of slides that deviate from auxiliary pipe axis on the circular conical surface, each sliding connection sloping block on the slide, the terminal surface that the auxiliary pipe is close to the slide is equipped with columniform case, be equipped with in the case and supply each sloping block gliding rectangular channel, each constitute the L type passageway that the cross-section is the rectangle between rectangular channel and the sloping block, the terminal surface of case is equipped with the clamp plate outward, the clamp plate passes through first spring coupling with the terminal surface of case, sliding connection sliding sleeve on the outer disc of sliding sleeve one end laminating clamp plate and another terminal surface laminating sloping block, be equipped with a plurality of so that buggy spun through-hole slope crossing and slope opening are kept away from the auxiliary pipe towards the slope on the sliding sleeve, a plurality of sloping block is equipped with the rubber circle.
Preferably, the rubber ring has high wear resistance and elasticity so as to push the inclined block to enlarge the cross section area of the L-shaped channel when the L-shaped channel is blocked.
Preferably, the auxiliary pipe is fixedly provided with a pushing sleeve at the joint with the main pipe, a limiting sleeve is arranged at the joint with the auxiliary pipe on the main pipe, a limiting sleeve is arranged between the pushing sleeve and the outer wall of the auxiliary pipe, a sealing rubber sleeve is arranged between the inner wall of the main pipe and the pushing sleeve, two water ports symmetrically distributed in two degrees are arranged on the outer circumferential surface of the sealing rubber sleeve, and each water port is provided with an outer wall of the auxiliary pipe, a limiting sleeve and a pushing sleeve which are distributed in a staggered manner.
Preferably, the outer circumferential surface of the pushing sleeve is attached to the inner wall of the limit sleeve, the inner circumferential surface of the pushing sleeve is larger than the inner diameter of the sealing rubber sleeve, and an inclined conical surface which is convenient for pushing and extruding the sealing rubber sleeve to block the inner cavity channel of the main pipe is arranged on the side surface of the pushing sleeve attached to the sealing rubber sleeve.
Preferably, the auxiliary box is internally provided with two first channels which are communicated with a main pipe and are convenient for coal dust and combustion improver to pass through, the first channels are identical to the cross-sectional area of the inner cavity channel of the main pipe, the auxiliary box is respectively provided with a step opening and a sliding connection joint at each step opening at the communication position of the first channels and the outside, a second channel is arranged in the joint, the cross-sectional area of the second channel is smaller than that of the first channel, the outer circular surface of the joint is fixedly connected with a fixed sleeve through threads, and the fixed sleeve is connected with the auxiliary box through a second spring.
Preferably, a sealing ring is arranged between the water tank and the auxiliary tank, the sealing ring has the characteristic of water absorption expansion sealing, a water tank is arranged in the auxiliary tank, water outlets are respectively arranged on the water tank close to the joints, and water injection holes are formed in the water tank and sealed through screw threads.
Preferably, rubber on the water port of the sealing rubber sleeve is made of extrudable soft materials so that the limiting sleeve extrudes the water port to seal when the auxiliary pipe and the main pipe slide relatively.
The beneficial effects are that:
1. continuous pulverized coal injection is changed into continuous intermittent small pulverized coal injection, and intervals are reserved between each pulverized coal, so that flame backflow after pulverized coal combustion can be effectively prevented;
2. the temperature of the coal powder nozzle under normal operation is higher, water is injected into the water-cooled coal powder nozzle in the sealing rubber sleeve, the coal powder nozzle can be effectively cooled, and the coal powder nozzle is prevented from being damaged at high temperature for a long time;
3. when the coal powder nozzle encounters guaranteed impact, the sealing rubber sleeve seals and blocks the outlet of the coal powder nozzle, in addition, the inlet of the coal powder nozzle enables the sealing ring to expand and seal under the action of water, and the coal powder is effectively isolated under double sealing to ensure safety;
drawings
FIG. 1 is an overall appearance of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a front cross-sectional view of the present invention
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
fig. 6 is a cross-sectional view at B-B in fig. 3.
The main pipe 1, the auxiliary box 2, the joint 4, the auxiliary pipe 3, the slide way 7, the inclined block 8, the valve core 13, the L-shaped channel 21, the pressing plate 11, the first spring 12, the sliding sleeve 10, the through hole 22, the rubber ring 8, the push sleeve 15, the limiting sleeve 23, the sealing rubber sleeve 14, the water through hole 16, the first channel 24, the head 4, the second channel 25, the fixed sleeve 5, the second spring 6, the water tank 19, the water outlet 20 and the bolt 17.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
According to fig. 1-6, a blast furnace pulverized coal nozzle comprises a main pipe 1, connect sub-tank 2 on the outer disc of main pipe 1, be equipped with two the same joints 4 that communicate pulverized coal and spouts chamber and pulverized coal combustion improver respectively on sub-tank 2, the one end sliding connection accessory pipe 3 that is kept away from sub-tank 2 of main pipe 1, the one end that is kept away from main pipe 1 of accessory pipe 3 is equipped with conical surface and conical surface is last to be equipped with a plurality of slides 7 that deviate from accessory pipe 3 axis, every sliding connection sloping block 8 on the slide 7, the terminal surface that accessory pipe 3 is close to slide 7 is equipped with cylindrical case 13, be equipped with in the case 13 and supply each sloping block 8 gliding rectangular channel 21, each rectangular channel constitutes the L type passageway 21 of cross-section for rectangle between the sloping block 8, the terminal surface of case 13 is equipped with clamp plate 11 outward, clamp plate 11 is connected through first spring 12 with the terminal surface of case 13, sliding connection sliding sleeve 10 on the outer disc surface of sliding sleeve 10 one end 11 and another terminal surface laminating sloping block 8, be equipped with so that the sliding sleeve 10 is equipped with a plurality of through-holes 22 in order to spout the sloping block 8 and slope and the sloping block 8 is equipped with a plurality of through-holes that the sloping sleeve 8 is equipped with the slope.
Further, the rubber ring 8 should have wear resistance and high elasticity so that the inclined block 8 is pushed to enlarge the cross-sectional area of the L-shaped channel 21 when the L-shaped channel 21 is blocked.
Further, the auxiliary pipe 3 is fixedly provided with a push sleeve 15 at the joint with the main pipe 1, a limit sleeve 23 is arranged at the joint with the auxiliary pipe 3 on the main pipe 1, a limit sleeve 23 is arranged between the push sleeve 15 and the outer wall of the auxiliary pipe 3, a sealing rubber sleeve 14 is arranged between the inner wall of the main pipe 1 and the push sleeve 15, two water through holes 16 symmetrically distributed at 180 degrees are arranged on the outer circumferential surface of the sealing rubber sleeve 14, and the outer circumferential surface of each water through hole 16 is provided with the outer wall of the auxiliary pipe 3, the limit sleeve 23 and the push sleeve 15 which are distributed in a staggered manner.
Further, the outer circumferential surface of the push sleeve 15 is attached to the inner wall of the limit sleeve 23, and the inner circumferential surface of the push sleeve 15 is larger than the inner diameter of the seal rubber sleeve 14, and the side surface of the push sleeve 15 attached to the seal rubber sleeve 14 is provided with an inclined conical surface which is convenient for pushing the seal rubber sleeve 14 to block the inner cavity channel of the main pipe 1.
Further, the auxiliary tank 2 is internally provided with two first channels 24 which are communicated with the main pipe 1 and are convenient for coal dust and combustion improver to pass through, the cross-sectional area of the first channels 24 is the same as that of the inner cavity of the main pipe 1, the auxiliary tank 2 is provided with a ladder opening and a sliding connection joint 4 at each ladder opening at the communication position of the first channels 24 and the outside, the joint 4 is internally provided with a second channel 25, the cross-sectional area of the second channel 25 is smaller than that of the first channels 24, the outer circular surface of the joint 4 is connected with a fixed sleeve 5 in a threaded manner, and the fixed sleeve 5 is connected with the auxiliary tank 2 through a second spring 6.
Further, a sealing ring 18 is arranged between the connector 4 and the auxiliary tank 2, the sealing ring 18 has the characteristic of water absorption expansion sealing, a water tank 19 is arranged in the auxiliary tank 2, water outlet holes 20 are respectively arranged on the water tank 19 close to the connector 4, and water injection holes are formed in the water tank 19 and are sealed through screw threads of bolts 17.
Further, the rubber on the water through hole 16 of the sealing rubber sleeve 14 should be made of a soft material capable of being extruded so that the limiting sleeve 23 extrudes the water through hole 16 for sealing when the secondary pipe 3 and the primary pipe 1 slide relatively.
Working principle:
initial state: the first spring 12 pulls the pressing plate all the time to enable the sliding sleeve 10 to be attached to the inclined block 8, and the fixing sleeve 5 on the joint 4 is screwed.
The two connectors 4 are respectively filled with gas containing pulverized coal and combustion improver, the gas enters the inner cavity channel of the main pipe 1 and then is mixed and introduced into the valve core 13 of the auxiliary pipe 3, and after the gas flows along the L-shaped channel 21 between the valve core 13 and the inclined block 8, the direction of the L-shaped channel 21 deviates from the axis of the sliding sleeve 10, so that the gas pushes the sliding sleeve 10 to continuously rotate along the same direction, and the through holes 22 on the sliding sleeve are continuously communicated with and disconnected from the L-shaped channel 21 during rotation, so that the pulverized coal gas is cut off into intermittent gas with one section to prevent the backflow of burning flame.
When the coal powder nozzle encounters impact, the auxiliary pipe 3 and the main pipe 1 relatively slide due to the impact, the limiting sleeve 23 and the outer wall of the auxiliary pipe 3 squeeze the sealing water through hole 16, and meanwhile, the pushing sleeve 15 squeezes the sealing rubber sleeve 14 to deform and seal the flow passage of the main pipe 1 and the auxiliary pipe 3; simultaneously, the joint 4 also generates relative sliding with the auxiliary tank 2 due to impact, and the liquid in the water tank 19 in the auxiliary tank 2 flows out along the water outlet hole 20, so that the sealing ring 18 absorbs water to expand, and the joint 4 is further sealed.
The foregoing embodiments of the present invention are not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (4)
1. The utility model provides a blast furnace coal dust nozzle, includes main pipe (1), its characterized in that, connect auxiliary tank (2) on the outer disc of main pipe (1), be equipped with two the same joints (4) that communicate buggy spouts chamber and buggy combustion improver respectively on auxiliary tank (2), the one end sliding connection auxiliary pipe (3) that auxiliary tank (2) were kept away from to main pipe (1), the one end that auxiliary pipe (3) kept away from main pipe (1) is equipped with conical surface and conical surface on be equipped with slide (7) of a plurality of skew auxiliary pipe (3) axis, each sliding connection sloping block (8) on slide (7), the terminal surface that auxiliary pipe (3) is close to slide (7) is equipped with cylindrical case (13), be equipped with in case (13) and supply each sloping block (8) gliding rectangular channel, each rectangular channel and sloping block (8) between the terminal surface that constitutes the cross-section is rectangle is equipped with clamp plate (11) outward, the terminal surface that clamp plate (11) and case (13) are connected through first spring (12) on the terminal surface, the terminal surface that clamp plate (10) and case (13) are equipped with on the sloping block (10) and the terminal surface (10) is equipped with on the laminating slider (10), the through holes (22) are obliquely intersected with the axis of the sliding sleeve (10) and the inclined openings face away from the auxiliary pipe (3), and rubber rings (9) are sleeved on the inclined blocks (8);
a pushing sleeve (15) is fixedly arranged at the joint of the auxiliary pipe (3) and the main pipe (1), a limit sleeve (23) is arranged between the pushing sleeve (15) and the inner wall of the auxiliary pipe (3), a sealing rubber sleeve (14) is arranged between the conical surface of the auxiliary pipe (3) and the pushing sleeve (15), two water through holes (16) which are symmetrically distributed at 180 degrees are arranged on the outer circumferential surface of the sealing rubber sleeve (14), and the outer circumferential surface of each water through hole (16) penetrates through the outer wall of the auxiliary pipe (3), the limit sleeve (23) and the pushing sleeve (15) which are distributed in a staggered manner;
the outer circumferential surface of the pushing sleeve (15) is attached to the inner wall of the limit sleeve (23) and the inner circumferential surface of the pushing sleeve is larger than the inner diameter of the sealing rubber sleeve (14), and an inclined conical surface which is convenient for pushing and extruding the sealing rubber sleeve (14) to seal the inner cavity channel of the main pipe (1) is arranged on the side surface of the pushing sleeve (15) attached to the sealing rubber sleeve (14);
be equipped with sealing washer (18) between joint (4) and sub-tank (2), sealing washer (18) have the sealed characteristic of expansion that absorbs water, be equipped with water tank (19) in sub-tank (2), water tank (19) are close to joint (4) and do not are equipped with apopore (20), be equipped with water injection hole and water injection hole on water tank (19) and pass through bolt (17) screw thread seal.
2. A blast furnace pulverized coal nozzle according to claim 1, characterized by that the rubber ring (9) should have wear-resistant high elastic properties so that the inclined block (8) is pushed to enlarge the cross-sectional area of the L-shaped channel (21) when the inside of the L-shaped channel (21) is blocked.
3. The blast furnace pulverized coal nozzle according to claim 1, characterized in that two first channels (24) which are communicated with a main pipe (1) and are convenient for pulverized coal and combustion improver to pass through are arranged in the auxiliary box (2), the cross-sectional areas of the first channels (24) and the inner cavity of the main pipe (1) are the same, the auxiliary box (2) is provided with a ladder opening and a sliding connection joint (4) at each ladder opening at the communication position of the first channels (24) and the outside, a second channel (25) is arranged in the joint (4), the cross-sectional area of the second channel (25) is smaller than the cross-sectional area of the first channels (24), a fixing sleeve (5) is connected on the outer circular surface of the joint (4) in a threaded manner, and the fixing sleeve (5) is connected with the auxiliary box (2) through a second spring (6).
4. A blast furnace pulverized coal nozzle according to claim 1, characterized in that rubber on the water through hole (16) of the sealing rubber sleeve (14) is made of extrudable soft material so that the limiting sleeve (23) extrudes the water through hole (16) for sealing when the auxiliary pipe (3) and the main pipe (1) slide relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210893251.1A CN115121392B (en) | 2022-07-27 | 2022-07-27 | Pulverized coal nozzle of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210893251.1A CN115121392B (en) | 2022-07-27 | 2022-07-27 | Pulverized coal nozzle of blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115121392A CN115121392A (en) | 2022-09-30 |
| CN115121392B true CN115121392B (en) | 2024-03-26 |
Family
ID=83385012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210893251.1A Active CN115121392B (en) | 2022-07-27 | 2022-07-27 | Pulverized coal nozzle of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115121392B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0163423A1 (en) * | 1984-04-27 | 1985-12-04 | Foster Wheeler Energy Corporation | Controlled flow, split stream burner assembly with sorbent injection |
| US5215259A (en) * | 1991-08-13 | 1993-06-01 | Sure Alloy Steel Corporation | Replaceable insert burner nozzle |
| JPH09133323A (en) * | 1995-11-10 | 1997-05-20 | Mitsubishi Heavy Ind Ltd | Pulverized coal combustion apparatus |
| CN1255411A (en) * | 2000-01-07 | 2000-06-07 | 清华大学 | Split-type coaxial powder-feeding nozzle for laser fusion and coating |
| CN1260219A (en) * | 1999-01-08 | 2000-07-19 | 魏厚瑗 | Intermittent pressurized fluid ejector |
| CN2847059Y (en) * | 2005-06-28 | 2006-12-13 | 西安热工研究院有限公司 | Center low speed vortex burner |
| CN201560193U (en) * | 2009-12-11 | 2010-08-25 | 宝钢集团新疆八一钢铁有限公司 | Blast furnace coal powder spray gun |
| CN102399593A (en) * | 2011-10-13 | 2012-04-04 | 东方电气集团东方锅炉股份有限公司 | Burner used for gasifier |
| CN103967081A (en) * | 2013-02-06 | 2014-08-06 | 厦门松霖科技有限公司 | Air-suction explosion-proof mechanism applied in waterway field |
-
2022
- 2022-07-27 CN CN202210893251.1A patent/CN115121392B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0163423A1 (en) * | 1984-04-27 | 1985-12-04 | Foster Wheeler Energy Corporation | Controlled flow, split stream burner assembly with sorbent injection |
| US5215259A (en) * | 1991-08-13 | 1993-06-01 | Sure Alloy Steel Corporation | Replaceable insert burner nozzle |
| JPH09133323A (en) * | 1995-11-10 | 1997-05-20 | Mitsubishi Heavy Ind Ltd | Pulverized coal combustion apparatus |
| CN1260219A (en) * | 1999-01-08 | 2000-07-19 | 魏厚瑗 | Intermittent pressurized fluid ejector |
| CN1255411A (en) * | 2000-01-07 | 2000-06-07 | 清华大学 | Split-type coaxial powder-feeding nozzle for laser fusion and coating |
| CN2847059Y (en) * | 2005-06-28 | 2006-12-13 | 西安热工研究院有限公司 | Center low speed vortex burner |
| CN201560193U (en) * | 2009-12-11 | 2010-08-25 | 宝钢集团新疆八一钢铁有限公司 | Blast furnace coal powder spray gun |
| CN102399593A (en) * | 2011-10-13 | 2012-04-04 | 东方电气集团东方锅炉股份有限公司 | Burner used for gasifier |
| CN103967081A (en) * | 2013-02-06 | 2014-08-06 | 厦门松霖科技有限公司 | Air-suction explosion-proof mechanism applied in waterway field |
Non-Patent Citations (1)
| Title |
|---|
| 自动间歇喷雾干燥装置;孙维敏;;中成药(04);第37页 * |
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| Publication number | Publication date |
|---|---|
| CN115121392A (en) | 2022-09-30 |
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Effective date of registration: 20240227 Address after: 516006 Building 1, No. 13, Hechang East 5th Road, Huitai Industrial Zone, Zhongkai High tech Zone, Huizhou City, Guangdong Province Applicant after: Huizhou dingtaixin Technology Co.,Ltd. Country or region after: China Address before: Room 1-103, Office Building, Runcheng Taijin Stone Co., Ltd., Heshan Industrial Park, Laibin City, Guangxi Zhuang Autonomous Region 546115 Applicant before: Guangxi Shanhe New Material Technology Co.,Ltd. Country or region before: China |
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