CN113237065B - Intelligent control waste sulfuric acid cracking furnace and waste sulfuric acid cracking process - Google Patents
Intelligent control waste sulfuric acid cracking furnace and waste sulfuric acid cracking process Download PDFInfo
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- CN113237065B CN113237065B CN202110041743.3A CN202110041743A CN113237065B CN 113237065 B CN113237065 B CN 113237065B CN 202110041743 A CN202110041743 A CN 202110041743A CN 113237065 B CN113237065 B CN 113237065B
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- sulfuric acid
- waste sulfuric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/10—Supplementary heating arrangements using auxiliary fuel
- F23G2204/103—Supplementary heating arrangements using auxiliary fuel gaseous or liquid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/10—Liquid waste
- F23G2209/101—Waste liquor
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Abstract
The invention discloses an intelligently controlled waste sulfuric acid cracking furnace and a waste sulfuric acid cracking process in the technical field of chemical engineering environmental protection, and the intelligently controlled waste sulfuric acid cracking furnace and the waste sulfuric acid cracking process comprise a gas burner, wherein a waste sulfuric acid spray head is communicated with the middle position of the left side of the gas burner, gas spray heads are communicated with the upper part and the lower part of the waste sulfuric acid spray heads, an electric igniter is arranged below each two gas spray heads, the right side of the gas burner is communicated with the waste sulfuric acid cracking furnace, and the front side of the gas burner is communicated with a vent pipe; according to the invention, through arranging the vent pipe, the linkage mechanism, the emulsifying mechanism and the cleaning mechanism, the linkage mechanism can be driven when the vent pipe is ventilated, the linkage mechanism can firstly act on the emulsifying mechanism to emulsify the elemental sulfur condensed and attached at the end part of the waste sulfuric acid spray head, so that the subsequent cleaning is more convenient, and then the linkage mechanism can act on the cleaning mechanism to clean the waste sulfuric acid spray head when the vent pipe is ventilated every time, so that the problem that the atomization effect is reduced because the end part of the waste sulfuric acid spray head is blocked by the condensed elemental sulfur is solved.
Description
Technical Field
The invention relates to the technical field of chemical industry environmental protection, in particular to an intelligent control waste sulfuric acid cracking furnace and a waste sulfuric acid cracking process.
Background
With the continuous development of industrial technology, the industrial production is continuously expanded, and the environmental pollution is increasingly serious. Some enterprises can not treat the waste sulfuric acid generated by using sulfuric acid as a production auxiliary raw material, some enterprises adopt acid-base comprehensive treatment, and some enterprises adopt a stockpiling and storing method, so that resources are wasted and the environment is polluted.
In the invention case of an intelligent control waste sulfuric acid cracking furnace and a waste sulfuric acid cracking process disclosed in the prior art, a Chinese patent with the patent application number of CN201210474729.3 is invented, and the waste acid cracking furnace comprises a gas burner, a waste acid nozzle, an automatic ignition and flameout protection system, a combustion regulation control system and an air blower, wherein the gas burner is arranged at the head of the waste acid cracking furnace.
Prior art is when handling waste sulfuric acid, the oxygen content in the pyrolysis furnace can continuously reduce at the reaction in-process, although can let in the air in the pyrolysis furnace, but in the violent department of reaction or reaction time overlength, the oxygen content can reduce to certain extent, part sulphide in the pyrolysis furnace will reduce into elemental sulfur or sulphur vapour, condense easily and adhere to at waste sulfuric acid shower nozzle tip, lead to the shower nozzle to block up, waste sulfuric acid blowout atomization effect reduces, can make follow-up reaction process extension or reaction insufficient, and can't in time clear up the shower nozzle in the reaction, need react and carry out the shutdown after a period of time and handle.
Based on the above, the invention designs an intelligent control waste sulfuric acid cracking furnace and a waste sulfuric acid cracking process, so as to solve the problems.
Disclosure of Invention
The invention aims to provide an intelligently controlled waste sulfuric acid cracking furnace and a waste sulfuric acid cracking process, and solve the problems that in the prior art, when waste sulfuric acid is treated, the oxygen content in the cracking furnace is continuously reduced in the reaction process, although air is introduced into the cracking furnace, the oxygen content is reduced to a certain degree at the severe reaction position or over-long reaction time, part of sulfides in the cracking furnace can be reduced into elemental sulfur or sulfur steam, the sulfides are easy to condense and adhere to the end part of a waste sulfuric acid spray head to cause spray head blockage, the atomization effect of spraying the waste sulfuric acid is reduced, the subsequent reaction process is lengthened or insufficient, the spray head cannot be cleaned in time in the reaction process, and shutdown treatment needs to be performed after a period of reaction time.
In order to achieve the purpose, the invention provides the following technical scheme: an intelligent control waste sulfuric acid cracking furnace comprises gas burners, wherein a waste sulfuric acid spray head is communicated with the middle position of the left side of each gas burner, the upper part and the lower part of each waste sulfuric acid spray head are communicated with gas spray heads, electric igniters are arranged below the two gas spray heads, the right side of each gas burner is communicated with the waste sulfuric acid cracking furnace, the front side of each gas burner is communicated with a vent pipe, the end part of each waste sulfuric acid spray head is provided with a cleaning mechanism for cleaning the elemental sulfur condensed in the hole of each waste sulfuric acid spray head, each vent pipe extends into the inside of each gas burner, the end part of each vent pipe is provided with a linkage mechanism for driving the cleaning mechanism, each cleaning mechanism is driven by the linkage mechanism, an emulsifying mechanism is arranged above each cleaning mechanism, and is used for intermittently injecting an emulsifying agent for emulsifying the elemental sulfur condensed at the end part of each waste sulfuric acid spray head into the hole of each waste sulfuric acid spray head;
when the device works, in the prior art, when waste sulfuric acid is treated, the oxygen content in a cracking furnace can be continuously reduced in the reaction process, although air can be introduced into the cracking furnace, when the reaction is severe or the reaction time is too long, the oxygen content can be reduced to a certain degree, partial sulfide in the cracking furnace can be reduced into elemental sulfur or sulfur steam, the sulfur can be easily condensed and attached to the end part of a waste sulfuric acid spray nozzle, so that the spray nozzle is blocked, the spraying atomization effect of the waste sulfuric acid is reduced, the subsequent reaction process is lengthened or insufficient, the spray nozzle cannot be cleaned in time in the reaction process, shutdown treatment is carried out after the reaction is carried out for a period of time, the device firstly introduces sufficient air into the waste sulfuric acid cracking furnace through a vent pipe before the reaction, then an electric igniter is started, fuel required for combustion is sprayed through a gas spray nozzle, when the temperature in the waste sulfuric acid cracking furnace reaches the temperature required by waste sulfuric acid cracking, the waste sulfuric acid spray nozzle is sprayed into the waste sulfuric acid cracking furnace in a mist form through the waste sulfuric acid spray nozzle, the vent pipe can be intermittently introduced into the air vent pipe intermittently to prevent the oxygen content in the waste sulfuric acid cracking furnace from being too low, the waste sulfuric acid vent pipe can drive a linkage mechanism when the waste sulfuric acid cleaning linkage mechanism, the waste sulfuric acid vent pipe, and the waste sulfuric acid can be conveniently cleaned, and the elemental sulfur spray nozzle can be prevented from being blocked, and the subsequent elemental sulfur spray nozzle from being blocked, and the subsequent elemental sulfur atomization linkage mechanism.
As a further scheme of the invention, the cleaning mechanism comprises a cleaning plate, the cleaning plate is slidably connected with the end part of the waste sulfuric acid spray head, one end of the cleaning plate, which is close to the vent pipe, is fixedly connected with the side surface of the waste sulfuric acid spray head through a first return spring, the cleaning plate can reciprocate under the combined action of a linkage mechanism and the first return spring, a chute is arranged on the cleaning plate corresponding to the waste sulfuric acid spray head, cleaning grooves and switching holes which are longitudinally arranged at equal intervals are arranged in the chute corresponding to the middle position of the waste sulfuric acid spray head, the cleaning grooves and the switching holes are alternately arranged, a cleaning block is slidably connected in the cleaning grooves, the end part of the cleaning block is trapezoidal, and the bottom of the cleaning block is fixedly connected with the cleaning grooves through springs, connecting through holes are formed in the sliding groove corresponding to the upper end and the lower end of the waste sulfuric acid spray nozzle, two connecting through holes are connected with a fixed block in a sliding mode, the fixed block is fixedly connected to the end portion of the waste sulfuric acid spray nozzle, the fixed block extends to the outer side of the cleaning plate and is fixedly connected with an atomization plate, atomization holes are formed in the atomization plate corresponding to the cleaning groove and the switching hole, an airflow difference compensation hole used for compensating cleaning switching is formed in one side, close to the air pipe, of the atomization plate, switching grooves which are distributed equidistantly are formed in one end, close to the cleaning plate, of the atomization plate, the switching grooves are located between the two atomization holes and are communicated with the two atomization holes, the two sides of each switching groove are inclined planes, and the end portion of the cleaning block can slide on the inclined planes on the two sides of the switching grooves; when the cleaning device works, a waste sulfuric acid spray head can spray waste sulfuric acid, the waste sulfuric acid can be sprayed out from a switching hole and an atomizing hole which are aligned with the surfaces of a cleaning plate and an atomizing plate, when a vent pipe introduces gas into a waste sulfuric acid cracking furnace, the air flow can enable a linkage mechanism to move, the linkage mechanism can act on the cleaning plate, the cleaning plate can move to one side far away from the vent pipe under the action of the linkage mechanism, the inclined surface of the end part of the cleaning plate can slide on the inclined surface of a switching groove in the moving process, the cleaning block can be extruded into a cleaning groove, then the cleaning block can enter an adjacent atomizing hole through the switching groove, the condensed elemental sulfur in the atomizing hole can be cleaned out, the problem that the condensed elemental sulfur can be gradually attached to the atomizing hole in the long-time working process to cause the atomizing effect reduction or the incapability of atomization of the atomizing hole can be caused is solved, the compensation hole can be opened when the cleaning plate moves, the number of the atomizing hole is prevented from being reduced when the cleaning plate moves, the linkage mechanism is not used for cleaning the cleaning plate, the waste sulfuric acid can be reduced, the original amount of the ejected sulfur can be reduced, the original discharged by the linkage mechanism, the original phenomenon that the cleaning block can be restored when the cleaning plate is restored, the original cleaning hole, the original cleaning plate, and the original cleaning plate can be restored, the original cleaning plate, and the original total amount of the cleaning plate can be stably kept by the original spring, and the original cleaning plate can be kept by the original linkage mechanism, and the original cleaning plate.
As a further scheme of the invention, the linkage mechanism comprises a power shaft, the power shaft is rotatably connected to the central position of the end part of the vent pipe through a bracket, the surface of the power shaft is fixedly connected with a power fan blade, one end of the power shaft, which is far away from the vent pipe, is fixedly connected with a first helical gear, the inner wall of one side of the gas burner, which is far away from the waste sulfuric acid cracking furnace, is rotatably connected with a rotating shaft, the rotating shaft is positioned on the right side of the first helical gear, the middle position of the surface of the rotating shaft is fixedly connected with a second helical gear, the second helical gear is meshed with the first helical gear, the end part of the rotating shaft is fixedly connected with a cam, the rotation of the cam can drive an emulsifying mechanism, the surface of the protruding end of the cam is rotatably connected with a connecting block, a pulling rope is fixedly connected onto the connecting block, the pulling rope is fixedly connected with the side surface of the cleaning plate, and the cleaning plate can reciprocate under the driving of the pulling rope and a first reset spring; when the air vent pipe works for a period of time, when the air vent pipe introduces air into the waste sulfuric acid cracking furnace, the air flow can drive the power fan blade to rotate, the power fan blade can drive the power shaft to rotate, the first bevel gear fixedly connected with the surface of the power shaft can rotate together, the second bevel gear and the rotating shaft can rotate together with the first bevel gear, the cam at the end part of the rotating shaft can rotate together with the rotating shaft, the cam can act on the emulsifying mechanism in the rotating process, the pulling rope can pull the cleaning plate in the rotating process of the cam, and the cleaning plate can reciprocate under the action of the pulling rope and the first reset spring.
As a further scheme of the invention, the emulsifying mechanism comprises a water outlet block, the water outlet block is fixedly connected to the inner wall of the gas burner far away from the side of the waste sulfuric acid cracking furnace, the water outlet block is positioned above the waste sulfuric acid spray head, the end part of the water outlet block extends to the position of the atomizing plate, a first water outlet hole is formed below the water outlet block, a U-shaped baffle is connected below the water outlet block in a sliding manner, the rear side of the U-shaped baffle is fixedly connected with the rear side wall of the water outlet block through a second reset spring, a second water outlet hole is formed at the bottom of the U-shaped baffle, the first water outlet hole and the second water outlet hole are staggered, the U-shaped baffle can reciprocate left and right under the pushing action of the cam and the supporting action of the second reset spring, a liquid inlet pipe is communicated with the position of the rear side of the water outlet block close to the inner wall of the gas burner, the liquid inlet pipe is communicated with a liquid storage tank through the inner wall above the gas burner, and the liquid storage tank is fixedly connected above the outer side of the gas burner; when the sulfur emulsion cleaning device works for a period of time, air is introduced into the waste sulfuric acid cracking furnace through the vent pipe, the linkage mechanism moves, the linkage mechanism acts on the U-shaped baffle, the U-shaped baffle moves in the direction away from the vent pipe, the second water outlet hole in the bottom of the U-shaped baffle is aligned with the first water outlet hole in the bottom of the water outlet block, then sulfur emulsion in the water outlet block flows out, the sulfur emulsion in the liquid storage tank can supplement the water outlet block through the liquid inlet pipe, when the linkage mechanism does not act on the U-shaped baffle, the U-shaped baffle can restore to the original position under the action of the second reset spring, the second water outlet hole can be dislocated with the first water outlet hole again, and the sulfur emulsion in the water outlet block can not flow out any more.
As a further scheme of the invention, the bottoms of the inner walls of the two connecting ports are fixedly connected with first teeth, the end parts of the waste sulfuric acid spray heads corresponding to the connecting ports are rotatably connected with rotating rods, the two rotating rods penetrate through the connecting ports and extend to the outer side of the atomization plate, the two rotating rods are provided with second teeth corresponding to the first teeth, the first teeth are meshed with the second teeth, the end parts of the two rotating rods are fixedly connected with cleaning rods, and the cleaning rods are telescopic rods and can slide on the surface of the atomization plate; the during operation, when the clearance board removes, two intraoral first teeth of connecting can drive the rotation rod fixed surface connection's second tooth and rotate, the dwang can rotate along with the rotation of second tooth together, the clearance pole of rotation rod tip fixed connection can rotate along with the dwang, the clearance pole can clear up the simple substance sulphur that is cleared up out in the simple substance sulphur that the atomizing plate surface condensed and the atomization hole, prevent that the atomization plate is at long-time work, the surface has the simple substance sulphur accumulation, lead to the atomization hole to be blockked up, reduce atomization effect or can not atomizing problem take place.
As a further scheme of the invention, the bottom of the U-shaped baffle is fixedly connected with three drainage tubes, each drainage tube covers the same number of second water outlet holes, the lower ends of the three drainage tubes are fixedly connected to the top of the atomizing plate, drainage grooves are formed in the positions, corresponding to the three drainage plates, of the atomizing plate, the drainage grooves are located on the surface of one end, close to the cleaning plate, of the atomizing plate, the drainage grooves are divided into two parts when extending to the atomizing holes and sequentially penetrate through the atomizing holes to the bottommost part; the during operation, when the U-shaped baffle removed, the sulphur emulsion that flows in the second outlet port can flow in the drainage inslot of seting up on the atomizing board along the drainage tube, then once flow in each atomizing hole along the drainage groove, can not only make condensing can be better by the emulsification at the downthehole elemental sulphur of atomizing, convenient clearance piece clears up the downthehole elemental sulphur of atomizing, also can prevent when ventilating, the air current can be blown away the sulphur emulsion that flows from the atomizing board, lead to atomizing board and the downthehole elemental sulphur of atomizing can not emulsified, the problem that causes the difficulty for follow-up clearance takes place.
An intelligent control waste sulfuric acid cracking process comprises the following specific steps:
the method comprises the following steps: firstly, introducing sufficient air into a waste sulfuric acid cracking furnace, then starting an electric igniter, and then spraying fuel required by combustion into the waste sulfuric acid cracking furnace to raise the temperature in the waste sulfuric acid cracking furnace to the temperature required by cracking;
step two: then spraying the waste sulfuric acid into a waste sulfuric acid cracking furnace in a mist form to enable the waste sulfuric acid to react fully, and intermittently introducing air into a vent pipe in the reaction process to prevent the oxygen content in the waste sulfuric acid cracking furnace from being too low;
step three: and (4) recovering waste heat of a product generated by cracking, and then feeding the product into a subsequent acid making system.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through arranging the vent pipe, the linkage mechanism, the emulsifying mechanism and the cleaning mechanism, the linkage mechanism can be driven when the vent pipe is ventilated, the linkage mechanism can firstly act on the emulsifying mechanism to emulsify the elemental sulfur condensed and attached at the end part of the waste sulfuric acid spray head, so that the subsequent cleaning is more convenient, and then the linkage mechanism can act on the cleaning mechanism to clean the waste sulfuric acid spray head when the vent pipe is ventilated every time, so that the problem that the atomization effect is reduced because the end part of the waste sulfuric acid spray head is blocked by the condensed elemental sulfur is solved.
2. According to the invention, by arranging the U-shaped baffle, the drainage tube and the drainage groove, when the U-shaped baffle moves, the sulfur emulsion flowing out of the second water outlet hole can flow into the drainage groove formed in the atomizing plate along the drainage tube, and then flow into each atomizing hole along the drainage groove at one time, so that the elemental sulfur condensed in the atomizing holes can be better emulsified, the elemental sulfur in the atomizing holes can be cleaned by the cleaning block conveniently, and the problem that the elemental sulfur in the atomizing holes and the elemental sulfur in the atomizing holes cannot be emulsified due to the fact that the sulfur emulsion flowing out can be blown away from the atomizing plate by airflow during ventilation, and the subsequent cleaning is difficult can be solved.
3. According to the invention, through arranging the cleaning plate, the cleaning block, the switching groove and the atomization hole, when the gas is introduced into the waste sulfuric acid cracking furnace through the vent pipe, the linkage mechanism can be moved by the gas flow, the cleaning plate can move to one side far away from the vent pipe under the action of the linkage mechanism, the inclined plane at the end part of the cleaning block can slide on the inclined plane of the switching groove in the moving process, so that the cleaning block is extruded into the cleaning groove, and then the cleaning block can enter the adjacent atomization hole through the switching groove to clean out the condensed elemental sulfur in the atomization hole, thereby preventing the problem that the condensed elemental sulfur can be gradually attached to the atomization hole in the long-time working process, and the atomization effect of the atomization hole is reduced or atomization cannot be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an intelligent control waste sulfuric acid cracking process of the present invention;
FIG. 2 is a schematic diagram of the overall structure of an intelligent control waste sulfuric acid cracking furnace according to the present invention;
FIG. 3 is a schematic view of the overall structure of an intelligent control waste sulfuric acid cracking furnace (hidden waste sulfuric acid cracking furnace) according to the present invention;
FIG. 4 is a schematic view of the structure at A in FIG. 3;
FIG. 5 is a schematic view of a linkage mechanism according to the present invention;
FIG. 6 is a schematic view of the connection structure of the cleaning mechanism and the emulsifying mechanism according to the present invention;
FIG. 7 is an exploded view of the cleaning mechanism of the present invention;
FIG. 8 is a rear view of the atomization plate of the present invention;
FIG. 9 is a rear view of the cleaning plate according to the present invention;
FIG. 10 is an exploded view of the emulsification mechanism of the present invention;
FIG. 11 is a schematic sectional view of an emulsifying mechanism according to the present invention;
FIG. 12 is a schematic sectional view of the waste sulfuric acid spray head, the cleaning plate and the atomization plate of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a gas burner 1, a waste sulfuric acid spray head 2, a gas spray head 3, an electric igniter 4, a waste sulfuric acid cracking furnace 5, a vent pipe 6, a power shaft 7, a power fan blade 8, a first helical gear 9, a rotating shaft 10, a second helical gear 11, a cam 12, a connecting block 13, a pulling rope 14, a cleaning plate 15, a first return spring 16, a sliding groove 17, a cleaning groove 18, a switching hole 19, a cleaning block 20, a connecting through hole 21, a fixing block 22, an atomizing plate 23, an atomizing hole 24, a compensating hole 25, a switching groove 26, a water outlet block 27, a first water outlet 28, a U-shaped baffle 29, a second return spring 30, a second water outlet 31, a liquid inlet pipe 32, a liquid storage tank 33, a first tooth 34, a rotating rod 35, a second tooth 36, a cleaning rod 37, a drainage pipe 38 and a drainage groove 39.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-12, the present invention provides a technical solution: an intelligent control waste sulfuric acid cracking furnace comprises a gas burner 1, wherein a waste sulfuric acid spray head 2 is communicated with the middle position of the left side of the gas burner 1, gas spray heads 3 are communicated with the upper part and the lower part of each waste sulfuric acid spray head 2, an electric igniter 4 is arranged below each gas spray head 3, a waste sulfuric acid cracking furnace 5 is communicated with the right side of the gas burner 1, a vent pipe 6 is communicated with the front side of the gas burner 1, a cleaning mechanism for cleaning elemental sulfur condensed in a hole of the waste sulfuric acid spray head 2 is arranged at the end part of each waste sulfuric acid spray head 2, the vent pipe 6 extends into the gas burner 1, a linkage mechanism for driving the cleaning mechanism is arranged at the end part of the vent pipe, the cleaning mechanism is driven by the linkage mechanism, an emulsifying mechanism is arranged above the cleaning mechanism, and the emulsifying mechanism is used for intermittently injecting an emulsifier for emulsifying the elemental sulfur condensed at the end part of the waste sulfuric acid spray heads 2 into the hole of the waste sulfuric acid spray heads 2;
when the device works, in the prior art, when the waste sulfuric acid is treated, the oxygen content in the cracking furnace can be continuously reduced in the reaction process, although air can be introduced into the cracking furnace, when the reaction is severe or the reaction time is too long, the oxygen content can be reduced to a certain degree, partial sulfides in the cracking furnace can be reduced into elemental sulfur or sulfur vapor, the elemental sulfur or the sulfur vapor is easily condensed and attached to the end part of the waste sulfuric acid spray nozzle 2, so that the spray nozzle is blocked, the spraying atomization effect of the waste sulfuric acid is reduced, the subsequent reaction process is lengthened or insufficient, the spray nozzle cannot be cleaned in time in the reaction process, and shutdown treatment is carried out after reaction for a period of time.
As a further scheme of the invention, the cleaning mechanism comprises a cleaning plate 15, the cleaning plate 15 is slidably connected with the end part of the waste sulfuric acid spray head 2, one end of the cleaning plate 15 close to the vent pipe 6 is fixedly connected with the side surface of the waste sulfuric acid spray head 2 through a first return spring 16, the cleaning plate 15 can reciprocate under the combined action of the linkage mechanism and the first return spring 16, a chute 17 is arranged on the cleaning plate 15 corresponding to the position of the waste sulfuric acid spray head 2, cleaning grooves 18 and switching holes 19 which are longitudinally arranged at equal intervals are opened in the chute 17 corresponding to the middle position of the waste sulfuric acid spray head 2, the cleaning grooves 18 and the switching holes 19 are alternately arranged, a cleaning block 20 is slidably connected in the cleaning groove 18, the end part of the cleaning block 20 is trapezoidal, and the bottom part of the cleaning block is fixedly connected with the cleaning grooves 18 through a spring, connecting through holes 21 are formed in the sliding groove 17 corresponding to the upper end and the lower end of the waste sulfuric acid spray head 2, two connecting through holes 21 are connected with fixing blocks 22 in a sliding mode, the fixing blocks 22 are fixedly connected to the end portion of the waste sulfuric acid spray head 2, the fixing blocks 22 extend to the outer side of the cleaning plate 15 and are fixedly connected with atomizing plates 23, atomizing holes 24 are formed in the positions, corresponding to the cleaning grooves 18 and the switching holes 19, of the atomizing plates 23, airflow difference compensation holes 25 used for compensating cleaning switching are formed in one sides, close to the air pipes 6, of the atomizing plates 23, switching grooves 26 are formed in one ends, close to the cleaning plate 15, of the atomizing plates 26 and are distributed equidistantly, the switching grooves 26 are located between the two atomizing holes 24 and are communicated with the two atomizing holes 24, the two sides of the switching grooves 26 are inclined planes, and the end portions of the cleaning blocks 20 can slide on the inclined planes on the two sides of the switching grooves 26; in operation, the waste sulfuric acid spray head 2 can spray out waste sulfuric acid, the waste sulfuric acid can be sprayed out from the switching holes 19 and the atomizing holes 24 which are aligned with the surfaces of the cleaning plate 15 and the atomizing plate 23, when the vent pipe 6 leads gas into the waste sulfuric acid cracking furnace 5, the air flow can enable the linkage mechanism to move, the linkage mechanism can act on the cleaning plate 15, the cleaning plate 15 can move towards one side far away from the vent pipe 6 under the action of the linkage mechanism, the inclined plane at the end part of the cleaning block 20 can slide on the inclined plane of the switching groove 26 in the moving process, so that the cleaning block 20 is extruded into the cleaning groove 18, then the cleaning block 20 can enter the adjacent atomizing holes 24 through the switching groove 26, the condensed elemental sulfur in the atomizing holes 24 is cleaned out, and the long-time working process is prevented, condensed elemental sulfur can be gradually attached to the inside of the atomizing holes 24 to cause the problem that the atomizing effect of the atomizing holes 24 is reduced or the atomization is not realized, the compensation holes 25 can be opened when the cleaning plate 15 moves to prevent the problem that the sprayed waste sulfuric acid is reduced due to the reduction of the number of the atomizing holes 24 during cleaning, so that the reaction rate is reduced, then the linkage mechanism does not act on the cleaning plate 15, the cleaning plate 15 can restore to the original position under the action of the first reset spring 16, the cleaning block 20 can slide to the original atomizing holes 24 in the switching groove 26 again, the compensation holes 25 can be blocked by the cleaning block 20 again, the cleaning plate 15 is cleaned by utilizing the action of the linkage mechanism, the cleaning block 20 on the surface can move to the adjacent atomizing holes 24 due to the movement of the cleaning plate 15, and the condensed elemental sulfur in the atomizing holes 24 can be cleaned, the compensation holes 25 are opened when the cleaning plate 15 moves, so that the total amount of the waste sulfuric acid sprayed out from the atomization holes 24 before and after cleaning is kept unchanged, and the reaction in the waste sulfuric acid cracking furnace 5 is kept stable basically.
As a further scheme of the invention, the linkage mechanism comprises a power shaft 7, the power shaft 7 is rotatably connected to the central position of the end part of the vent pipe 6 through a support, the surface of the power shaft 7 is fixedly connected with a power fan blade 8, one end of the power shaft 7, which is far away from the vent pipe 6, is fixedly connected with a first helical gear 9, the inner wall of one side, which is far away from the waste sulfuric acid cracking furnace 5, of the gas burner 1 is rotatably connected with a rotating shaft 10, the rotating shaft 10 is positioned on the right side of the first helical gear 9, the middle position of the surface of the rotating shaft 10 is fixedly connected with a second helical gear 11, the second helical gear 11 is meshed with the first helical gear 9, the end part of the rotating shaft 10 is fixedly connected with a cam 12, the cam 12 rotates to drive the emulsifying mechanism, the surface of the protruding end of the cam 12 is rotatably connected with a connecting block 13, a pulling rope 14 is fixedly connected to the connecting block 13, the pulling rope 14 is fixedly connected with the side surface of the cleaning plate 15, and the cleaning plate 15 can reciprocate under the driving of the pulling rope 14 and a first return spring 16; when the waste sulfuric acid cracking furnace works for a period of time, when the air is introduced into the waste sulfuric acid cracking furnace 5 through the air pipe 6, the air flow can drive the power fan blade 8 to rotate, the power fan blade 8 can drive the power shaft 7 to rotate, the first bevel gear 9 fixedly connected to the surface of the power shaft 7 can rotate together, the second bevel gear 11 and the rotating shaft 10 can rotate together with the first bevel gear 9, the cam 12 at the end part of the rotating shaft 10 can rotate together with the rotating shaft 10, the cam 12 can act on the emulsifying mechanism in the rotating process, the pulling rope 14 can pull the cleaning plate 15 in the rotating process of the cam 12, and the cleaning plate 15 can reciprocate under the action of the pulling rope 14 and the first return spring 16.
As a further scheme of the invention, the emulsifying mechanism comprises a water outlet block 27, the water outlet block 27 is fixedly connected to the inner wall of the gas burner 1 far away from the waste sulfuric acid cracking furnace 5, the water outlet block 27 is positioned above the waste sulfuric acid spray head 2, the end part of the water outlet block extends to the position of the atomizing plate 23, a first water outlet hole 28 is formed below the water outlet block 27, a U-shaped baffle 29 is connected below the water outlet block 27 in a sliding manner, the rear side of the U-shaped baffle 29 is fixedly connected with the rear side wall of the water outlet block 27 through a second return spring 30, a second water outlet hole 31 is formed at the bottom of the U-shaped baffle 29, the first water outlet hole 28 and the second water outlet hole 31 are staggered, the U-shaped baffle 29 can reciprocate left and right under the pushing action of a cam 12 and the supporting action of the second return spring 30, a liquid inlet pipe 32 is communicated with the position of the rear side of the water outlet block 27 close to the inner wall of the gas burner 1, the liquid inlet pipe 32 is communicated with a liquid storage tank 33 communicated with the inner wall of the gas burner 1 through the upper side, and the liquid storage tank 33 is fixedly connected above the burner 1; during operation, after a period of operation, air is introduced into the waste sulfuric acid cracking furnace 5 through the vent pipe 6, the linkage mechanism moves, the linkage mechanism acts on the U-shaped baffle 29, the U-shaped baffle 29 moves in a direction away from the vent pipe 6, the second water outlet 31 at the bottom of the U-shaped baffle 29 aligns with the first water outlet 28 at the bottom of the water outlet block 27, then sulfur emulsion in the water outlet block 27 flows out, the sulfur emulsion in the liquid storage tank 33 supplements the water outlet block 27 through the liquid inlet pipe 32, when the linkage mechanism does not act on the U-shaped baffle 29, the U-shaped baffle 29 returns to the original position under the action of the second reset spring 30, the second water outlet 31 re-misaligns with the first water outlet 28, the sulfur emulsion in the water outlet block 27 does not flow out any more, the linkage mechanism acts on the U-shaped baffle 29, the second water outlet 31 aligns with the first water outlet 28, and therefore the sulfur emulsion in the water outlet block 27 condenses, sulfur on the atomization plate 23 is condensed, and the problem that subsequent sulfur emulsion is not adhered to the atomization plate 23 is solved.
As a further scheme of the invention, the bottoms of the inner walls of the two connecting through holes 21 are fixedly connected with first teeth 34, the end parts of the waste sulfuric acid spray heads 2 corresponding to the connecting through holes 21 are rotatably connected with rotating rods 35, the two rotating rods 35 penetrate through the connecting through holes 21 and extend to the outer side of the atomizing plate 23, the positions of the two rotating rods 35 corresponding to the first teeth 34 are respectively provided with second teeth 36, the first teeth 34 are meshed with the second teeth 36, the end parts of the two rotating rods 35 are fixedly connected with cleaning rods 37, and the cleaning rods 37 are telescopic rods and can slide on the surface of the atomizing plate 23; the during operation, when clearance plate 15 removes, first tooth 34 in two connection opening 21 can drive dwang 35 fixed surface connection's second tooth 36 and rotate, dwang 35 can rotate along with the rotation of second tooth 36, dwang 35 fixed end connection's clearance pole 37 can rotate along with dwang 35, clearance pole 37 can clear up the simple substance sulphur that is cleared up out in 23 surface condensation of atomizing plate and the atomizing hole 24, prevent that atomizing plate 23 is in long-time work, the surface has the simple substance sulphur accumulation, lead to atomizing hole 24 to be blockked up, reduce atomization effect or can not the atomizing problem take place.
As a further scheme of the invention, the bottom of the U-shaped baffle 29 is fixedly connected with three drainage tubes 38, the number of the drainage tubes 38 is three, each drainage tube 38 covers the same number of second water outlet holes 31, the lower ends of the three drainage tubes 38 are fixedly connected to the top of the atomizing plate 23, drainage grooves 39 are formed in the atomizing plate 23 corresponding to the three drainage plate positions, the drainage grooves 39 are located on the surface of one end of the atomizing plate 23 close to the cleaning plate 15, and the drainage grooves 39 extend to the atomizing holes 24 and are divided into two parts and sequentially penetrate through the atomizing holes 24 to the bottommost part; during operation, when U-shaped baffle 29 removed, the sulphur emulsion that flows out in the second apopore 31 can flow into the drainage groove 39 of seting up on the atomizing plate 23 along drainage tube 38, then flow into each atomizing hole 24 along drainage groove 39 once, can not only make the simple substance sulphur that condenses in atomizing hole 24 can be better emulsified, make things convenient for clearance piece 20 to clear up the simple substance sulphur in atomizing hole 24, also can prevent when ventilating, the air current can be with the sulphur emulsion that flows out by the blow-off atomizing plate 23, lead to the simple substance sulphur in atomizing plate 23 and the atomizing hole 24 can not emulsified, the problem that causes the difficulty for follow-up clearance takes place.
An intelligent control waste sulfuric acid cracking process comprises the following specific steps:
the method comprises the following steps: firstly, introducing sufficient air into the waste sulfuric acid cracking furnace 5, then starting the electric igniter 4, and then spraying fuel required by combustion into the waste sulfuric acid cracking furnace 5 to raise the temperature in the waste sulfuric acid cracking furnace 5 to the temperature required by cracking;
step two: then spraying the waste sulfuric acid into the waste sulfuric acid cracking furnace 5 in a mist form to enable the waste sulfuric acid to fully react, and intermittently introducing air into the vent pipe 6 in the reaction process to prevent the oxygen content in the waste sulfuric acid cracking furnace 5 from being too low;
step three: and (4) recovering waste heat of a product generated by cracking, and then feeding the product into a subsequent acid making system.
The working principle is as follows:
when the device works, in the prior art, when waste sulfuric acid is treated, the oxygen content in the cracking furnace can be continuously reduced in the reaction process, although air can be introduced into the cracking furnace, when the reaction is severe or the reaction time is too long, the oxygen content can be reduced to a certain degree, partial sulfide in the cracking furnace can be reduced into elemental sulfur or sulfur steam, the elemental sulfur or the sulfur steam is easily condensed and attached to the end part of a waste sulfuric acid spray nozzle 2, so that the spray nozzle is blocked, the atomization effect of spraying the waste sulfuric acid is reduced, the subsequent reaction process is lengthened or insufficient, the spray nozzle cannot be cleaned in time in the reaction process, shutdown treatment is carried out after the reaction is carried out for a period of time, the device firstly introduces sufficient air into the waste sulfuric acid cracking furnace 5 through a vent pipe 6 before the reaction, then starts an electric igniter 4, then injects fuel required for combustion through a gas spray nozzle 3, when the temperature in the waste sulfuric acid cracking furnace 5 reaches the temperature required by waste sulfuric acid cracking, the waste sulfuric acid is sprayed into the waste sulfuric acid cracking furnace 5 through the vent pipe 2 in a mist form, the spray nozzle 2 is injected into the waste sulfuric acid cracking furnace 5, the vent mechanism, the linkage mechanism can prevent the air introduced into the waste sulfuric acid cracking furnace 6 from causing the phenomenon that the oxygen content in the waste sulfuric acid cracking furnace, the phenomenon that the subsequent emulsification mechanism can be reduced, and the subsequent emulsification of the subsequent spray nozzle can be caused by the action of the subsequent linkage mechanism, and the emulsification of the atomization mechanism, and the subsequent spray nozzle can be carried out, and the emulsification of the atomization mechanism.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides an intelligent control waste sulfuric acid cracking furnace, includes gas nozzle (1), gas nozzle (1) left side intermediate position intercommunication has waste sulfuric acid shower nozzle (2), waste sulfuric acid shower nozzle (2) all communicate from top to bottom has gas shower nozzle (3), two gas shower nozzle (3) below all is equipped with electric igniter (4), gas nozzle (1) right side intercommunication has waste sulfuric acid cracking furnace (5), its characterized in that: the front side of the gas burner (1) is communicated with a vent pipe (6), the end part of the waste sulfuric acid nozzle (2) is provided with a cleaning mechanism for cleaning the elemental sulfur condensed in the hole of the waste sulfuric acid nozzle (2), the vent pipe (6) extends into the gas burner (1), the end part of the vent pipe is provided with a linkage mechanism for driving the cleaning mechanism, the cleaning mechanism is driven by the linkage mechanism, an emulsifying mechanism is arranged above the cleaning mechanism, and the emulsifying mechanism is used for intermittently injecting an emulsifying agent for emulsifying the elemental sulfur condensed at the end part of the waste sulfuric acid nozzle (2) into the hole of the waste sulfuric acid nozzle (2);
the clearance mechanism includes clearance board (15), clearance board (15) sliding connection is in waste sulfuric acid shower nozzle (2) tip, clearance board (15) are close to breather pipe (6) one end is through first reset spring (16) and waste sulfuric acid shower nozzle (2) side fixed connection, reciprocating motion can be done under the combined action of link gear and first reset spring (16) to clearance board (15), correspond on clearance board (15) waste sulfuric acid shower nozzle (2) position has seted up spout (17), correspond in spout (17) clearance recess (18) and switching hole (19) that have the equidistance vertically to arrange are opened to waste sulfuric acid shower nozzle (2) intermediate position, clearance recess (18) and switching hole (19) alternate and arrange, sliding connection has clearance piece (20) in clearance recess (18), clearance piece (20) tip is trapezoidal and the bottom pass through the spring with clearance recess (18) fixed connection, correspond in spout (17) waste sulfuric acid shower nozzle (2) upper and lower position have all seted up and have all connected to two fixed block (22) atomization end (22), waste sulfuric acid shower nozzle (22) fixed block (22) extension, opening (22) and opening end fixed block (22) are connected with the fixed block (22), atomization holes (24) are formed in the positions, corresponding to the cleaning grooves (18) and the switching holes (19), of the atomization plate (23), airflow difference compensation holes (25) used for compensating cleaning switching are formed in one side, close to the ventilation pipe (6), of the atomization plate (23), switching grooves (26) are formed in one end, close to the cleaning plate (15), of the atomization plate (23) and are arranged at equal intervals, the switching grooves (26) are located between the two atomization holes (24) and are communicated with the two atomization holes (24), two sides of each switching groove (26) are inclined planes, and the end portion of the cleaning block (20) can slide on the inclined planes on two sides of each switching groove (26);
link gear includes power shaft (7), power shaft (7) are connected through the support rotation breather pipe (6) tip central point puts, power shaft (7) fixed surface is connected with power flabellum (8), power shaft (7) are kept away from the first helical gear (9) of breather pipe (6) one end fixedly connected with, gas nozzle (1) is kept away from waste sulfuric acid pyrolysis furnace (5) one side inner wall rotates and is connected with axis of rotation (10), axis of rotation (10) are located first helical gear (9) right side, axis of rotation (10) surperficial intermediate position fixedly connected with second helical gear (11), second helical gear (11) mesh with first helical gear (9), axis of rotation (10) tip fixedly connected with cam (12), cam (12) rotate and can drive emulsification mechanism, the protruding end surface of cam (12) rotates and is connected with connecting block (13), fixedly connected with pulls rope (14) on connecting block (13), pull rope (14) with the side fixed connection of clearance board (15), clearance board (15) can be the reciprocal motion of first spring (16) and the back-and forth movement.
2. The intelligent control waste sulfuric acid cracking furnace of claim 1, which is characterized in that: emulsification mechanism includes a water piece (27), go out water piece (27) fixed connection and be in keep away from gas nozzle (1) on the inner wall of waste sulfuric acid cracking furnace (5) one side, it is located to go out water piece (27) waste sulfuric acid shower nozzle (2) top, its tip extends to atomization plate (23) position, it has first apopore (28) to go out water piece (27) below division, it has U-shaped baffle (29) to go out water piece (27) below sliding connection, U-shaped baffle (29) rear side through second reset spring (30) with go out water piece (27) rear wall fixed connection, open U-shaped baffle (29) bottom has second apopore (31), first apopore (28) and second apopore (31) dislocation mutually, U-shaped baffle (29) can cam (12) promote with the supporting role of second reset spring (30) about reciprocating motion, it is close to go out water piece (27) rear side gas nozzle (1) inner wall position is connected there is liquid storage tube (32) liquid storage tube (33) fixed connection top liquid storage tube (33) outside liquid storage tube (1) inner wall (33) top intercommunication case (33).
3. The intelligent control waste sulfuric acid cracking furnace of claim 1, which is characterized in that: two connect first tooth of the equal fixedly connected with in opening (21) inner wall bottom (34), waste sulfuric acid shower nozzle (2) tip corresponds connect opening (21) position and all rotate and be connected with dwang (35), and two dwang (35) pass and connect opening (21) and extend to atomizing board (23) outside, two dwang (35) correspond first tooth (34) position all is equipped with second tooth (36), first tooth (34) with second tooth (36) mesh mutually, two the equal fixedly connected with in dwang (35) tip clearance pole (37), clearance pole (37) are scalable pole and can atomizing board (23) surface sliding.
4. The intelligent control waste sulfuric acid cracking furnace of claim 2, which is characterized in that: u-shaped baffle (29) bottom fixedly connected with drainage tube (38), drainage tube (38) are the hose and have threely, every drainage tube (38) all cover second apopore (31) of same number, and are three drainage tube (38) lower extreme equal fixed connection is in atomizing board (23) top, atomizing board (23) are gone up and are corresponded three drainage plate position and have all seted up drainage groove (39), drainage groove (39) are located atomizing board (23) and are close to clearance board (15) one end on the surface, drainage groove (39) extend to atomizing hole (24) time-division is two and run through atomizing hole (24) to bottommost in proper order.
5. An intelligent control waste sulfuric acid cracking process, which is suitable for the intelligent control waste sulfuric acid cracking furnace of any one of claims 1 to 4, and is characterized in that: the waste sulfuric acid cracking process comprises the following specific steps:
the method comprises the following steps: firstly, introducing sufficient air into the waste sulfuric acid cracking furnace (5), then starting the electric igniter (4), and then spraying fuel required by combustion into the waste sulfuric acid cracking furnace (5) to raise the temperature in the waste sulfuric acid cracking furnace (5) to the temperature required by cracking;
step two: then spraying the waste sulfuric acid into a waste sulfuric acid cracking furnace (5) in a mist form to enable the waste sulfuric acid to react fully, and intermittently introducing air into an air pipe (6) in the reaction process to prevent the oxygen content in the waste sulfuric acid cracking furnace (5) from being too low;
step three: and the products generated by cracking enter a subsequent acid making system after waste heat recovery.
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Effective date of registration: 20221209 Address after: 401220 Yanjia Chuanwei factory, Changshou District, Chongqing Applicant after: Chongqing Chuanwei Petrochemical Engineering Co.,Ltd. Address before: 641300 group 1, Guanxin village, Yueyang Town, Anyue County, Ziyang City, Sichuan Province Applicant before: Yao Yan |
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