CN113546780A - Refractory material spraying combined spray gun of gasification furnace of pyrometallurgical furnace - Google Patents
Refractory material spraying combined spray gun of gasification furnace of pyrometallurgical furnace Download PDFInfo
- Publication number
- CN113546780A CN113546780A CN202110970465.XA CN202110970465A CN113546780A CN 113546780 A CN113546780 A CN 113546780A CN 202110970465 A CN202110970465 A CN 202110970465A CN 113546780 A CN113546780 A CN 113546780A
- Authority
- CN
- China
- Prior art keywords
- cavity
- muzzle
- gas
- furnace
- straight end
- 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.)
- Withdrawn
Links
- 239000007921 spray Substances 0.000 title claims abstract description 17
- 238000005507 spraying Methods 0.000 title claims abstract description 17
- 238000002309 gasification Methods 0.000 title claims abstract description 9
- 239000011819 refractory material Substances 0.000 title abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000003466 welding Methods 0.000 claims abstract description 5
- 241001489978 Eupolyphaga Species 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
-
- 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
- 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
- B05B15/18—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 for improving resistance to wear, e.g. inserts or coatings; for indicating wear; for handling or replacing worn parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a refractory material spraying combined spray gun of an incinerator gasification furnace, which comprises a material cavity for conveying wet materials and a gas cavity for conveying high-pressure gas, wherein the material cavity and the gas cavity are welded and fixed through a connecting piece, the front end of the material cavity is connected with a wear-resistant elbow through a flange, the other end of the wear-resistant elbow is fixedly connected with a straight end of a gun muzzle through a flange by using bolts, the straight end of the gun muzzle is connected with a spray gun muzzle through threads, the straight end of the gun muzzle is in a round table shape, the front end of the gas cavity is inserted into the straight end of the gun muzzle and is connected through welding to form an included angle of 55 degrees, and gun covers are arranged at the outer ends of the material cavity and the gas cavity to play a role of protecting the material cavity and the gas cavity in a high-temperature environment in the incinerator. This device adopts the wet material spraying, can overcome the thermal radiation operating mode environmental impact of the high temperature furnace charge in the stove, and construction convenience is consuming time fewly, and the input is fast, and long service life practices thrift raw and other materials, and environmental pollution is little.
Description
Technical Field
The invention relates to the technical field of blast furnace ironmaking equipment, in particular to a refractory spraying combined spray gun of an Euro-metallurgy furnace gasifier.
Background
The eight-steel Ou-Meta furnace is divided into an upper furnace zone and a lower furnace zone, the upper part is a reduction shaft furnace, the lower part is a gasification furnace, the height of the gasification furnace is about 33 meters, and the effective volume is 1480m3. The top of the gasification furnace is a specific arch crown hemisphere with refractory material distribution, and is sprayed by adopting a castable, wherein the castable is fixed by a stainless steel anchor; the lower part of the dome is built by dome corundum combined bricks. The boundary point between the upper castable and the lower vault corundum composite brick in the hemispherical interior of the vault of the pyrometallurgical furnace causes local damage to refractory materials, the refractory materials fall off, the temperature of the furnace shell rises and cracks, and safety production is affected due to design defects and impact of working conditions of thermal vibration and thermal expansion and cold contraction. In order to eliminate the influence of the damage of the refractory material on the safety production, the damaged part is repaired by adopting a spraying technology. A spray gun adopted by the traditional spraying technology adopts pneumatic conveying to spray dry coating, water is distributed at the mouth of the spray gun, and the defects of uneven mixing and more rebound materials after spraying are overcome.
The invention content is as follows:
the invention aims to design a refractory spraying combined spray gun of an incinerator gasification furnace, which adopts wet material spraying, can overcome the influence of the thermal radiation working condition environment of high-temperature furnace charge in the furnace, and has the advantages of convenient construction, less time consumption, quick production, long service life, raw material saving and small environmental pollution.
The technical scheme adopted by the invention is as follows: the utility model provides a refractory material spraying combination spray gun of stove gasification furnace of Europe smelting, including the material chamber of carrying the wet material and carry the gas chamber of high pressure gas, material chamber and gas chamber pass through connector welded fastening, the front end of material chamber is passing through flange joint wear-resisting elbow, the other end of wear-resisting elbow utilizes the bolt fastening connection through flange and the straight end of muzzle, the straight end of muzzle passes through threaded connection and sprays the muzzle, the straight end of muzzle is round platform form, the front end of gas chamber inserts the straight end of muzzle and passes through welded connection, be 55 contained angles, material chamber and gas chamber outer end set up the gun case, play the effect of high temperature environment protection material chamber and gas chamber in the stove.
The gun elbow is easy to wear and has a replaceable flange, and the gun elbow can be replaced after being worn and leaked in the construction process, so that the material is saved, and the overhaul cost is reduced. The invention uses the material pressure feed pump to send the wet material to the injection cavity opening of the combined spray gun, and the wet material is injected to the furnace wall at the injection gun opening, thereby achieving the purpose of repairing the refractory material of the furnace wall.
Compared with the traditional process, the invention shortens the working time by about 20 percent and can reduce the loss of raw materials. The invention is beneficial to the environmental protection of the invention and the operation area, and well solves the problem of the quality of blast furnace spraying. The material sprayed by the spraying combined spray gun is a wet spraying material, has extremely low dust and extremely low material reflection ink loss, can be constructed at high temperature in the environment, and has physical properties close to the pouring quality of refractory materials after spraying.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The utility model provides a refractory material spraying combination formula spray gun structure of eupolyphaga stove gasifier, as shown in figure 1, includes that material chamber 1 and gas chamber 2 utilize the welding to fix each other through connector 7, 8, and the front end of material chamber 1 utilizes the bolt to fasten wear-resisting elbow 4 through flange 5 and connects, and the other end of wear-resisting elbow 4 utilizes the bolt to fasten with muzzle straight end 3 through flange 10 and is connected. The muzzle straight end 3 is connected with the injection cavity opening 6 through threads. The front end of the gas cavity 2 is inserted into the muzzle straight end 3 and is connected by welding. The outer ends of the material cavity 1 and the gas cavity 2 are provided with gun sleeves, and the gun sleeves play a role in protecting the material cavity 1 and the gas cavity 2 in a high-temperature environment in the furnace. According to the invention, wet materials are delivered to the muzzle straight end 3 and the injection cavity opening 6 of the combined spray gun under the pressure of the material cavity 1, high-pressure air pressurizes the wet materials at the muzzle straight end 3 through the gas cavity 2, and then the wet materials are sprayed to the furnace wall at the injection cavity opening 6, so that the aim of repairing refractory materials of the furnace wall is achieved.
Claims (1)
1. The utility model provides a resistant material spraying combination spray gun of eupolyphaga stove gasification furnace, including material chamber (1) of carrying the wet material and with carry gas chamber (2) of high pressure gas, characterized by: the material cavity and the gas cavity are fixed by welding through a connector (7) and 8), the front end of the material cavity (1) is connected with a wear-resistant elbow (4) through a flange (5), the other end of the wear-resistant elbow (4) is fixedly connected with a muzzle straight end (3) through a flange (10) by utilizing a bolt, the muzzle straight end (3) is connected with a spray muzzle (6) through threads, the muzzle straight end (6) is in a round table shape, the front end of the gas cavity (2) is inserted into the muzzle straight end (3) to be connected by welding, an included angle of 55 degrees is formed, the material cavity (1) and the gas cavity (2) are provided with a gun sleeve (9) at the outer end, and the function of protecting the material cavity (1) and the gas cavity (2) in a furnace in a high-temperature environment is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970465.XA CN113546780A (en) | 2021-08-23 | 2021-08-23 | Refractory material spraying combined spray gun of gasification furnace of pyrometallurgical furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970465.XA CN113546780A (en) | 2021-08-23 | 2021-08-23 | Refractory material spraying combined spray gun of gasification furnace of pyrometallurgical furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113546780A true CN113546780A (en) | 2021-10-26 |
Family
ID=78105959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110970465.XA Withdrawn CN113546780A (en) | 2021-08-23 | 2021-08-23 | Refractory material spraying combined spray gun of gasification furnace of pyrometallurgical furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113546780A (en) |
-
2021
- 2021-08-23 CN CN202110970465.XA patent/CN113546780A/en not_active Withdrawn
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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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211026 |