CN112945039A - Device and method for treating copper smelting furnace flue based on carbon dioxide - Google Patents
Device and method for treating copper smelting furnace flue based on carbon dioxide Download PDFInfo
- Publication number
- CN112945039A CN112945039A CN202110406726.5A CN202110406726A CN112945039A CN 112945039 A CN112945039 A CN 112945039A CN 202110406726 A CN202110406726 A CN 202110406726A CN 112945039 A CN112945039 A CN 112945039A
- Authority
- CN
- China
- Prior art keywords
- flue
- carbon dioxide
- main pipe
- gas release
- smelting furnace
- 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
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 75
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 75
- 238000003723 Smelting Methods 0.000 title claims abstract description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 32
- 239000010949 copper Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 230000004323 axial length Effects 0.000 claims abstract description 7
- 230000000977 initiatory effect Effects 0.000 claims description 17
- 238000004939 coking Methods 0.000 claims description 15
- 238000005485 electric heating Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 238000005336 cracking Methods 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000007858 starting material Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 62
- 238000005235 decoking Methods 0.000 description 9
- 239000002360 explosive Substances 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 7
- 238000004880 explosion Methods 0.000 description 7
- 239000003999 initiator Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000005422 blasting Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000037452 priming Effects 0.000 description 4
- 239000002283 diesel fuel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/10—Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0007—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by explosions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a device and a method for treating a copper smelting furnace flue based on carbon dioxide, wherein one end of a gas release head is a sealing tip, the other end of the gas release head is connected with a main pipe, the gas release head is provided with a plurality of gas release holes in the circumferential direction close to the sealing tip, a pressure limiting sheet is arranged between the gas release head and the main pipe in a sealing manner, the main pipe is filled with liquid carbon dioxide, a detonating device is used for gasifying the liquid carbon dioxide, a plurality of treatment holes are formed in the flue wall of the copper smelting furnace flue, the gas release head extends into the flue through the treatment holes, the main pipe is positioned on the outer side of the flue wall, a flying stop device is used for fixedly connecting the flue wall with the main pipe, the axial length of the gas release head is larger than 10cm, a gas release channel is arranged in the gas release head, one end of the gas release channel is a conical closed end, the other end of the gas release channel is sealed through the pressure limiting sheet, the gas release channel is communicated with. Has the advantages that: high efficiency, safety, controllability, little influence on equipment and low cost.
Description
Technical Field
The invention relates to the technical field of copper smelting furnace flue cleaning, in particular to a device and a method for treating a copper smelting furnace flue based on carbon dioxide.
Background
The smelting in the molten pool is a treatment process commonly adopted in the smelting process of the copper fire method, and the smelting in the molten pool is a smelting method for directly adding furnace burden into a blast-blown and overturned molten pool to quickly finish main reactions among gas, liquid and solid phases. In the smelting process, a large amount of high-temperature molten materials are blown into a subsequent uptake flue by blast air, so that the flue is seriously coked, the flue is blocked, and the pressure in the furnace is influenced. The flue of the existing common smelting furnace mainly has two forms of a refractory brick structure and a membrane wall structure, because the compression strength of the refractory brick flue is low, the flue coking can be treated only by a high-temperature melting mode, and the flue gas temperature is heated to be higher than the melting point of a bonding material by a mode of burning diesel oil or natural gas, so that the bonding material is melted and flows into the furnace. Because flue bonding thing is the metal oxide of high melting point mostly, and high temperature is difficult to melt completely, leads to the treatment effect unsatisfactory, consumes a large amount of diesel oil or natural gas in the processing procedure, increases manufacturing cost, and diesel oil or natural gas burning back in addition, the flue gas composition that produces is complicated, need carry out the tail gas processing, and treatment cost increases, and in addition, the life of resistant firebrick also can be influenced in many times high temperature melting coke treatment. The membrane wall flue uses a boiler pipe at the ascending section of the flue, the boiler pipe and the waste heat boiler pipe are connected into a whole, softened water is introduced into the boiler pipe to recover the heat of the flue, and the boiler pipe has strict requirements on temperature, so that if the flue coking is treated by using a high-temperature melting mode, the pipe explosion phenomenon is easily caused, and the membrane wall flue usually adopts an explosive explosion mode to treat the flue coking. The blasting process needs to be strictly controlled, otherwise, a boiler tube is extremely easy to blast and leak, a large amount of water enters the boiler and is in contact with a high-temperature melt to explode, high-temperature-resistant treatment needs to be carried out on blasting explosives due to the fact that a high-temperature environment exists in a flue, otherwise, the explosives are easily heated to explode in advance, potential safety hazards are large, and in addition, the blasting explosives need to be strictly managed, so that management and storage cost is high. The flue coking treatment device and the method have the defects of low treatment efficiency, large potential safety hazard, high treatment cost and the like more or less in both high-temperature melting and explosive blasting modes, so that the flue coking treatment device and the method which have the advantages of high treatment efficiency, safety, controllability, small influence on equipment, low treatment cost and environmental friendliness are urgently needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a device and a method for treating a copper smelting furnace flue based on carbon dioxide, which have the advantages of high treatment efficiency, safety, controllability, small influence on equipment, low treatment cost and environmental friendliness.
The aim of the invention is achieved by the following technical measures: a device for treating a copper smelting furnace flue based on carbon dioxide comprises a gas discharge head, a main pipe, a pressure limiting sheet, an initiation device and a flying stopping device, wherein one end of the gas discharge head is a sealed tip end, the other end of the gas discharge head is connected with the main pipe, a plurality of air leakage holes are formed in the gas discharge head in the circumferential direction close to the sealed tip end, the pressure limiting sheet is arranged between the gas discharge head and the main pipe in a sealing manner, liquid carbon dioxide is filled in the main pipe, the initiation device is used for gasifying the liquid carbon dioxide, a plurality of treatment holes are formed in the flue wall of the copper smelting furnace flue, the gas discharge head extends into the flue through the treatment holes, the main pipe is positioned outside the flue wall, the flying stopping device is used for fixedly connecting the flue wall with the main pipe, the axial length of the gas discharge head is greater than 10cm, an air leakage channel is arranged in the gas discharge head, one end of the air channel is conical closed end, the other end of the air leakage channel is sealed through a pressure limiting sheet, the air leakage channel is communicated with the external environment through an air leakage hole, and the distance between the air leakage hole and the maximum section of the conical closed end is 5-10 cm.
Further, the taper angle of the tapered closed end is 85-120 degrees.
Furthermore, the included angle theta between the axis central line of the air release hole and the axis central line of the air release head is more than 0 degree and less than or equal to 90 degrees, and when the included angle theta is more than 0 degree and less than 90 degrees, the air release hole is arranged towards the sealing tip of the air release head.
Furthermore, a through hole is formed in the circumferential direction of the air release head, the through hole is located on the conical surface of the conical closed end of the air release channel, and the number of the through holes is more than one.
Further, the initiation device comprises an electric heating element and an initiator, wherein the electric heating element is arranged in the main pipe, the initiator is in sealing connection with the end part of the main pipe, and the initiator is used for starting the electric heating element.
Furthermore, the flying-stopping device comprises a fixed ring seat, a sealing cover and an annular hoop, the fixed ring seat is arranged outside the processing hole and is fixedly connected with the flue wall, when the flue is processed, the air leakage head penetrates through the fixed ring seat and extends into the flue, the annular hoop is sleeved outside the main pipe and is fixedly connected with the main pipe through a plurality of clamping bolts arranged in the circumferential direction of the annular hoop, and the annular hoop is clamped with the fixed ring seat; when the flue is stopped to be treated, the sealing cover is clamped with the fixing ring seat.
Furthermore, the flying stopping device comprises a fixed ring seat and a sealing cover, a plurality of connecting rings are arranged in the circumferential direction of one end of the main pipe, which is far away from the air leakage head, the fixed ring seat is arranged outside the processing hole and is fixedly connected with the flue wall, when the flue is processed, the air leakage head penetrates through the fixed ring seat and extends into the flue, and the connecting rings are fixedly connected with the flue wall through a steel wire rope; when the flue is stopped to be treated, the sealing cover is clamped with the fixing ring seat.
Further, the filling amount of the liquid carbon dioxide in the main pipe is 500-1000 g.
Further, the diameter of the main pipe is 28-98 cm.
A method for treating a copper smelting furnace flue based on carbon dioxide comprises the following steps:
(1) drilling: taking down the sealing cover, and enabling a drill bit to extend into the processing hole from the fixed ring seat to drill the coking bonding material, wherein the depth of the drilled hole is greater than the length of the gas release head, and the aperture of the drilled hole is equal to or slightly greater than the outer diameter of the gas release head;
(2) and (3) cracking: the air release head extends into the drill hole from the fixed ring seat, the main pipe is positioned on the outer side of the flue wall, then the main pipe is fixedly connected with the flue wall by using an annular hoop or a steel wire rope, and finally the initiation device is started to realize the expansion work of liquid carbon dioxide to burst the bonding object;
(3) sealing: and unlocking the annular hoop or the steel wire rope, taking the device for treating the copper smelting furnace flue based on the carbon dioxide out of the fixed ring seat, and then clamping the sealing cover with the fixed ring seat to realize the sealing of the flue wall.
Compared with the prior art, the invention has the beneficial effects that: according to the device and the method for treating the copper smelting furnace flue based on the carbon dioxide, the cracking of the flue coking adhesive is realized by using the expansion pressure generated by the phase change expansion of the carbon dioxide, and the operation safety is high; no toxic and harmful gas is generated, and the environment is friendly; the burst impact force is small, and the influence on equipment is small; the cracking process is safe and controllable; the influence on production is small, and the production stop and the decoking are not needed; the decoking cost is low, and the investment and management cost is reduced; the device is not influenced by the high-temperature environment of the flue, the decoking safety is good, and the decoking efficiency is high; the initiation device can also be remotely controlled, no personnel are needed to see the initiation device on site, and the operation safety is improved.
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of the construction of the apparatus for treating a copper smelting furnace flue based on carbon dioxide.
Fig. 2 is a schematic structural view of the gas release head.
Fig. 3 is a schematic structural diagram of the fixing seat during flue treatment.
Fig. 4 is a schematic structural view of the fixing base when the flue treatment is stopped.
The device comprises a gas leakage head 1, a gas leakage head 2, a main pipe 3, a pressure limiting sheet 4, a flue wall 5, a gas leakage hole 6, a fixed ring seat 7, an annular clamp 8, a clamping bolt 9, an electric heating element 10, a starter 11, a through hole 12, a connecting ring 13, a steel wire rope 14, a sealing cover 15 and a processing hole.
Detailed Description
As shown in fig. 1 to 4, a device based on carbon dioxide handles copper smelting furnace flue, including letting out gas head 1, being responsible for 2, pressure limiting piece 3, priming device and ending and flying the device, the one end of letting out gas head 1 is closed most advanced, the other end of letting out gas head 1 is connected with being responsible for 2, a plurality of holes of losing air 5 are seted up to letting out gas head 1 on the circumferencial direction that is close to closed most advanced, it sets up pressure limiting piece 3 to let out gas head 1 and be responsible for sealed between 2, be responsible for 2 and fill liquid carbon dioxide, priming device is used for making liquid carbon dioxide gasification, furtherly, but priming device field control also remote control. A plurality of processing holes 15 have been seted up on the flue wall 4 of copper smelting furnace flue, let out gas head 1 and stretch into in the flue through processing holes 15, be responsible for 2 and be located the 4 outsides of flue wall, it is used for flue wall 4 and 2 fixed connection of being responsible for to end the flying device, the axial length of letting out gas head 1 is greater than 10 cm. The expansion pressure generated by the phase change expansion of the carbon dioxide is utilized to realize the explosion and the crack of the flue coking adhesive, no spark is generated in the explosion and crack process, and the carbon dioxide gas is a flame-retardant gas, so that the flammable and explosive gas in the high-temperature flue is prevented from being ignited, and the operation safety is high; no toxic and harmful gas is generated, and the subsequent flue gas treatment pressure is reduced; the impact force in the explosive cracking process is only 400MPa, and compared with the impact force of the traditional explosive blasting of 1000-; the explosion process is safe and controllable, and the intensity of the explosion force can be controlled by controlling the filling amount of the liquid carbon dioxide; the influence on production is small, production stop and decoking are not needed, the pressure of the carbon dioxide gas generated after decoking on subsequent flue gas treatment is small, and the subsequent flue gas treatment process is not needed to be changed; the decoking cost is low, only a small amount of carbon dioxide is consumed, other flammable and combustible consumables are not needed, and the investment and management cost is reduced; by prolonging the axial length of the gas release head 1, only the gas release head 1 extends into the flue wall 4, and the main pipe 2 is positioned outside the flue wall 4, so that the phenomenon of pipe explosion caused by gasification of liquid carbon dioxide in the main pipe 2 due to high temperature of a flue is avoided, the decoking safety is good, and the decoking efficiency is high; the initiation device can also be remotely controlled, no personnel are needed to see the initiation device on site, and the operation safety is improved. In addition, the axial length of the gas release head 1 can be determined according to the flue coking condition, if the flue coking is thicker, the longer gas release head 1 can be adopted so as to better realize the explosive cracking of the bonding material, if the flue coking is thinner, the length of the gas release head 1 can be properly reduced, but the axial length of the gas release head 1 is more than 10cm, if the length of the gas release head 1 is less than 10cm, the gas release hole 5 is close to the flue wall 4, and the flue wall 4 can be damaged in the process of carbon dioxide gasification expansion.
It is equipped with the passageway of disappointing in the head of letting out 1, the one end of the passageway of disappointing is the toper blind end, the other end of the passageway of disappointing passes through limiting plate 3 and seals, the passageway of disappointing communicates with external environment through disappointing hole 5, the distance between the biggest cross-section of disappointing hole 5 and toper blind end is d, and d satisfies that 5cm < d < 10 cm. When starting the priming device, the liquid carbon dioxide gasification in the main pipe 2, the phase change inflation produces the inflation pressure, when the inflation pressure is greater than the bearing capacity of pressure-limiting piece 3, pressure-limiting piece 3 can be damaged, carbon dioxide gas can get into the disappointing passageway of letting out gas head 1 and discharge by disappointing hole 5 from main pipe 2, carbon dioxide gas also can be towards the pressure-limiting piece 3 that damages together in the disappointing passageway simultaneously, it sets up the toper blind end and sets up certain distance between disappointing hole 5 and the toper blind end and can make pressure-limiting piece 3 be impacted between disappointing hole 5 and the toper blind end and chucking in the toper blind end by carbon dioxide gas to avoid pressure-limiting piece 3 to cause the impact by carbon dioxide gas rushing out disappointing hole 5 to flue wall 4, and then damage flue wall 4. If the distance between the air leakage hole 5 and the conical closed end is less than 5cm, the pressure limiting sheet is impacted to the conical closed end after being broken by the carbon dioxide gas, so that the reaction force of the conical closed end to the pressure limiting sheet 3 is larger, the conical closed end cannot clamp the pressure limiting sheet 3, the pressure limiting sheet 3 is rebounded to the pressure relief channel to influence pressure relief, and even the pressure limiting sheet 3 is rushed out of the air leakage hole 5 by the carbon dioxide gas to damage the flue wall 4; if the distance between the air leakage hole 5 and the conical closed end is greater than 10cm, then the impact of the carbon dioxide gas on the pressure limiting sheet 3 is weakened due to the fact that most of the carbon dioxide gas is discharged from the air leakage hole 5, and further the carbon dioxide gas cannot impact the pressure limiting sheet 3 to the conical closed end and is clamped by the conical closed end, so that pressure relief is affected, and even the pressure limiting sheet 3 is rushed out of the air leakage hole 5 by the carbon dioxide gas to damage the flue wall 4.
The cone angle of the cone-shaped closed end is 85-120 degrees. The cone angle of 85-120 degrees can enable the cone surface to better clamp the pressure limiting sheet 3, and the pressure limiting sheet 3 is prevented from loosening in the pressure relief process. If the taper angle is smaller than 85 degrees, the position where the pressure limiting sheet clamp 3 is located is close to the maximum section of the taper surface, and the pressure limiting sheet 3 is easy to loosen and fall off in the process of pressure relief of the air leakage head. If the cone angle is greater than 120 degrees, the impact force generated by the conical closed end to the limiting sheet 3 is large, the conical closed end is not beneficial to clamping the limiting sheet 3, the larger the cone angle is, the closer the conical surface is to the plane, the larger the impact force generated by the conical closed end to the limiting sheet 3 is, and the more difficult the conical closed end is to clamp the limiting sheet 3.
The included angle theta between the axial center line of the air release hole 5 and the axial center line of the air release head 1 is more than 0 degree and less than or equal to 90 degrees, and when the theta is more than 0 degree and less than or equal to 90 degrees, the air release hole 5 faces the sealing tip of the air release head 1. Specifically, the included angle theta can be set according to the position between the coking adhesive and the processing hole, if the center of the adhesive is near the axial center line of the air leakage head 1, the included angle theta can be 90 degrees, at the moment, carbon dioxide gas expands to work around in the center of the adhesive, and the adhesive can be better exploded; if the center of the bonding object deviates from the axial center line of the air release head 1, the size of theta can be properly adjusted to enable the direction of the air release hole 5 to be towards the center of the bonding object, so that carbon dioxide gas can expand from the center of the bonding object to the periphery to do work, and the crushing effect is improved.
Still seted up through-hole 11 on the circumferencial direction of letting out gas head 1, through-hole 11 is located on the conical surface of the passageway toper blind end that loses heart, through-hole 11 is more than one. When the pressure limiting sheet 3 is flushed to the conical closed end by carbon dioxide gas, the gas between the pressure limiting sheet 3 and the conical closed end can be discharged out of the conical closed end through the through hole 11, so that pressure difference is generated at two ends of the pressure limiting sheet 3, the pressure of the pressure limiting sheet 3 close to one side of the air leakage hole 5 is larger than the pressure of the pressure far away from one side of the air leakage hole 5, the pressure limiting sheet 3 is tightly pressed in the conical closed end, the pressure limiting sheet 3 is better prevented from moving in a pressure leakage channel to influence pressure leakage, or the pressure limiting sheet 3 is better prevented from being flushed out of the air leakage hole 5 by the carbon dioxide gas to damage the flue wall.
The initiation device comprises an electric heating element 9 and an initiator 10, wherein the electric heating element 9 is arranged in the main pipe 2, the initiator 10 is hermetically connected with the end part of the main pipe 2, and the initiator 10 is used for activating the electric heating element 9. Specifically, the electric heating element 9 is a heating wire, and the starter 10 can be started on site or remotely controlled. The mode that adopts the electrical heating promotes the liquid carbon dioxide inflation, has avoided the naked light that gunpowder starts and has brought, improves and starts the security, and simultaneously, the temperature of electrical heating element 9 can rise rapidly, makes the quick heat absorption gasification of liquid carbon dioxide, and start-up time is short, and the carbon dioxide gas in being responsible for 2 in the short time can break limit piece 3 and carry out the pressure release, has shortened the carbon dioxide and has stopped the time in being responsible for 2, has reduced the risk of being responsible for 2 detonating pipes.
The flying stopping device comprises a fixed ring seat 6, a sealing cover 14 and an annular hoop 7, wherein the fixed ring seat 6 is arranged outside the processing hole 15 and is fixedly connected with the flue wall 4, when the flue is processed, the gas release head 1 penetrates through the fixed ring seat 6 and extends into the flue, the annular hoop 7 is sleeved outside the main pipe 2 and is fixedly connected with the main pipe 2 through a plurality of clamping bolts 8 arranged in the circumferential direction of the annular hoop 7, and the annular hoop 7 is clamped with the fixed ring seat 6; when the treatment of the flue is stopped, the sealing cover 14 is clamped with the fixed ring seat 6. When the carbon dioxide expands to work and causes the coking adhesive to explode, the device for treating the copper smelting furnace flue based on the carbon dioxide also can bear certain reaction force, the main pipe can be fixed with the flue wall 4 by the flying stop device, the reaction force is transmitted to the flue wall 4 through the main pipe and the flying stop device, the main pipe 2 can be prevented from being pushed out to cause other equipment or personnel injury, reverse thrust can be consumed in the transmission process, and the damage of the reaction force to the flue wall 4 is reduced.
The flying-stopping device comprises a fixed ring seat 6 and a sealing cover 14, a plurality of connecting rings 12 are arranged in the circumferential direction of one end of the main pipe 2 far away from the gas-releasing head 1, the fixed ring seat 6 is arranged outside the processing hole 15 and is fixedly connected with the flue wall 4, when the flue is processed, the gas-releasing head 1 penetrates through the fixed ring seat 6 and extends into the flue, and the connecting rings 12 are fixedly connected with the flue wall 4 through steel wire ropes 13; when the treatment of the flue is stopped, the sealing cover 14 is clamped with the fixed ring seat 6.
The filling amount of the liquid carbon dioxide in the main pipe 2 is 500-1000 g. Specifically, the filling amount of carbon dioxide may be set according to the thickness of the binder in the flue. However, if the filling amount is more than 1000g, the expansion pressure of carbon dioxide is too large and the flue wall 4 is damaged, and if the filling amount is less than 500g, the expansion force is too small and is not enough to crack the adhesive, so that multiple times of cracking are needed, the cracking effect is affected, and the cracking efficiency is reduced.
The diameter of the main pipe 2 is 28-98 cm. Specifically, the diameter of the main pipe 2 may be set according to the filling amount of the liquid carbon dioxide, and if the filling amount is large, the main pipe 2 having a large diameter may be used, and if the filling amount is small, the main pipe 2 having a small diameter may be used. However, if the diameter of the main pipe 2 is greater than 98cm, the liquid carbon dioxide at the pipe wall is far away from the initiation device at the center of the main pipe, so that the carbon dioxide at the center is firstly gasified by absorbing heat, and the carbon dioxide at the pipe wall is still in a liquid state, thereby increasing the heat transfer time and further increasing the initiation time, and if the diameter of the main pipe is less than 28cm, the filling length of the liquid carbon dioxide in the main pipe 2 is long, and the liquid carbon dioxide close to the gas release head 1 is far away from the initiation device, thereby also increasing the initiation time. The above-mentioned more and less and larger and smaller are relative terms.
A method for treating a copper smelting furnace flue based on carbon dioxide comprises the following steps:
(1) drilling: and (3) taking off the sealing cover 14, extending a drill bit into the processing hole 15 from the fixed ring seat 6 to drill the coking bonding object, wherein the drilling depth is greater than the length of the gas release head 1, and the drilling aperture is equal to or slightly greater than the outer diameter of the gas release head 1.
(2) And (3) cracking: the gas release head 1 extends into the drill hole from the fixed ring seat 6, the main pipe is positioned on the outer side of the flue wall 4, then the main pipe is fixedly connected with the flue wall 4 through the annular hoop 7 or the steel wire rope 13, and finally the initiation device is started to realize the expansion work of the liquid carbon dioxide to burst the bonding object.
(3) Sealing: and unlocking the annular hoop 6 or the steel wire rope 13, drawing out the fixed ring seat 6 from the device for treating the copper smelting furnace flue based on carbon dioxide, and then clamping the sealing cover 14 with the fixed ring seat 6 to realize the sealing of the flue wall 4.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a device based on carbon dioxide handles copper smelting furnace flue which characterized in that: the copper smelting furnace comprises a gas release head, a main pipe, a pressure limiting sheet, an initiation device and a flying stopping device, wherein one end of the gas release head is a sealed tip, the other end of the gas release head is connected with the main pipe, a plurality of gas release holes are formed in the gas release head in the circumferential direction close to the sealed tip, the pressure limiting sheet is arranged between the gas release head and the main pipe in a sealing manner, liquid carbon dioxide is filled in the main pipe, the initiation device is used for gasifying the liquid carbon dioxide, a plurality of processing holes are formed in the flue wall of a flue of a copper smelting furnace flue, the gas release head extends into the flue through the processing holes, the main pipe is positioned outside the flue wall, the flying stopping device is used for fixedly connecting the flue wall with the main pipe, the axial length of the gas release head is greater than 10cm, a gas release channel is arranged in the gas release head, one end of the gas release channel is a conical closed end, and the other end, the air leakage channel is communicated with the external environment through an air leakage hole, and the distance between the air leakage hole and the maximum section of the conical closed end is 5-10 cm.
2. The apparatus for treating the flue of a copper smelting furnace based on carbon dioxide according to claim 1, characterized in that: the cone angle of the cone-shaped closed end is 85-120 degrees.
3. The apparatus for treating the flue of a copper smelting furnace based on carbon dioxide according to claim 1, characterized in that: the included angle theta between the central line of the air release hole shaft and the central line of the air release head shaft is more than 0 degree and less than or equal to 90 degrees, and when the theta is more than 0 degree and less than 90 degrees, the air release hole is arranged towards the sealing tip of the air release head.
4. The apparatus for treating the flue of a copper smelting furnace based on carbon dioxide according to claim 1, characterized in that: the air release head is characterized in that a through hole is further formed in the circumferential direction of the air release head, the through hole is located on the conical surface of the conical closed end of the air release channel, and the number of the through holes is more than one.
5. The apparatus for treating the flue of a copper smelting furnace based on carbon dioxide according to claim 1, characterized in that: the detonating device comprises an electric heating element and a starter, the electric heating element is arranged in the main pipe, the starter is connected with the end part of the main pipe in a sealing way, and the starter is used for starting the electric heating element.
6. The apparatus for treating the flue of a copper smelting furnace based on carbon dioxide according to claim 1, characterized in that: the flying stopping device comprises a fixed ring seat, a sealing cover and an annular hoop, the fixed ring seat is arranged on the outer side of the processing hole and is fixedly connected with the flue wall, when the flue is processed, the air leakage head penetrates through the fixed ring seat to extend into the flue, the annular hoop is sleeved on the outer side of the main pipe and is fixedly connected with the main pipe through a plurality of clamping bolts arranged in the circumferential direction of the annular hoop, and the annular hoop is clamped with the fixed ring seat; when the flue is stopped to be treated, the sealing cover is clamped with the fixing ring seat.
7. The apparatus for treating the flue of a copper smelting furnace based on carbon dioxide according to claim 1, characterized in that: the flying stopping device comprises a fixed ring seat and a sealing cover, a plurality of connecting rings are arranged in the circumferential direction of one end of the main pipe, which is far away from the gas releasing head, the fixed ring seat is arranged outside the processing hole and is fixedly connected with the flue wall, when the flue is processed, the gas releasing head penetrates through the fixed ring seat and extends into the flue, and the connecting rings are fixedly connected with the flue wall through a steel wire rope; when the flue is stopped to be treated, the sealing cover is clamped with the fixing ring seat.
8. The apparatus for treating the flue of a copper smelting furnace based on carbon dioxide according to claim 1, characterized in that: the filling amount of the liquid carbon dioxide in the main pipe is 500-1000 g.
9. The apparatus for treating the flue of a copper smelting furnace based on carbon dioxide according to claim 1, characterized in that: the diameter of the main pipe is 28-98 cm.
10. A method for treating a copper smelting furnace flue based on carbon dioxide is characterized by comprising the following steps:
(1) drilling: taking down the sealing cover, and enabling a drill bit to extend into the processing hole from the fixed ring seat to drill the coking bonding material, wherein the depth of the drilled hole is greater than the length of the gas release head, and the aperture of the drilled hole is equal to or slightly greater than the outer diameter of the gas release head;
(2) and (3) cracking: the air release head extends into the drill hole from the fixed ring seat, the main pipe is positioned on the outer side of the flue wall, then the main pipe is fixedly connected with the flue wall by using an annular hoop or a steel wire rope, and finally the initiation device is started to realize the expansion work of liquid carbon dioxide to burst the bonding object;
(3) sealing: and unlocking the annular hoop or the steel wire rope, taking the device for treating the copper smelting furnace flue based on the carbon dioxide out of the fixed ring seat, and then clamping the sealing cover with the fixed ring seat to realize the sealing of the flue wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110406726.5A CN112945039A (en) | 2021-04-15 | 2021-04-15 | Device and method for treating copper smelting furnace flue based on carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110406726.5A CN112945039A (en) | 2021-04-15 | 2021-04-15 | Device and method for treating copper smelting furnace flue based on carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112945039A true CN112945039A (en) | 2021-06-11 |
Family
ID=76232795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110406726.5A Pending CN112945039A (en) | 2021-04-15 | 2021-04-15 | Device and method for treating copper smelting furnace flue based on carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112945039A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857156A (en) * | 2021-09-28 | 2021-12-31 | 安徽酉鸣八方科技有限公司 | CO2 safe phase change descaling device that possesses multiple impact effect |
-
2021
- 2021-04-15 CN CN202110406726.5A patent/CN112945039A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857156A (en) * | 2021-09-28 | 2021-12-31 | 安徽酉鸣八方科技有限公司 | CO2 safe phase change descaling device that possesses multiple impact effect |
| CN113857156B (en) * | 2021-09-28 | 2022-11-11 | 安徽酉鸣八方科技有限公司 | CO2 safe phase change descaling device that possesses multiple impact effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3514321A1 (en) | Well casing/tubing disposal | |
| CN104775759B (en) | A kind of comprehensive broken rock drill bit | |
| WO2011079742A1 (en) | Controllable pulse gas energy fracturing machine | |
| CN112945039A (en) | Device and method for treating copper smelting furnace flue based on carbon dioxide | |
| CN101438123B (en) | Method and arrangement for the destruction of explosive-filled objects | |
| US7819180B2 (en) | High-energy gas fracture apparatus for through-tubing operations | |
| CN104500068A (en) | Dry ice blasting method and dry ice blasting device | |
| WO2019072183A1 (en) | Coal seam secondary anti-reflection device and method by means of joint efforts of thermal disturbance and drilling gas explosion | |
| CN214582857U (en) | Device based on carbon dioxide handles copper smelting furnace flue | |
| CN117005842A (en) | High-energy gas fracturing device for preventing cable from being burnt and fleeing | |
| CN203672245U (en) | Blast hole charging structure suitable for fire zone blasting | |
| CN108457612B (en) | Chemical method for repairing petroleum casing pipe | |
| CN112985186A (en) | Solid carbon dioxide pneumatic rock breaking device and using method thereof | |
| CA2472533A1 (en) | Activated stemming device | |
| CN106522946A (en) | Cracking method and device using blast hole as solid carbon dioxide container | |
| CN104265224A (en) | Fast unclamping device realizing oil well drill clamping object directional explosion impact failure separation | |
| WO2023155354A1 (en) | Safe and efficient high-energy expanding agent, and preparation method therefor and use thereof | |
| CN214039743U (en) | Rock mass directional fracturing device | |
| CN108252673B (en) | A kind of petroleum casing pipe chemical method prosthetic device | |
| CN204024610U (en) | The two time delay pressure detonator of getting angry of a kind of oil well | |
| CN201225863Y (en) | Tool for detonating step hole | |
| CN111174654A (en) | Safe and environment-friendly gas mixed heat energy expansion device and construction method | |
| CN201254978Y (en) | Perforating gun String terminal signal generator | |
| CN100504026C (en) | Perforation and cracking method | |
| CN203050665U (en) | Scattered article deflagrating and fracturing device |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240605 Address after: No. 4-1, Zhuchu South Road, Zhifu District, Yantai City, Shandong Province, China, 264100 Applicant after: Yantai Dadi carbon dioxide blasting machinery equipment Co.,Ltd. Country or region after: China Address before: 122000 Sanjia village, dashanjia Town, Beipiao City, Chaoyang City, Liaoning Province Applicant before: Liaoning Gaiya fractured rock mechanical equipment Technology Co.,Ltd. Country or region before: China |