CN115231528A - Waste acid cracking furnace and cracking process for 1,4 butanediol industry - Google Patents
Waste acid cracking furnace and cracking process for 1,4 butanediol industry Download PDFInfo
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- CN115231528A CN115231528A CN202210847829.XA CN202210847829A CN115231528A CN 115231528 A CN115231528 A CN 115231528A CN 202210847829 A CN202210847829 A CN 202210847829A CN 115231528 A CN115231528 A CN 115231528A
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- 238000005336 cracking Methods 0.000 title claims abstract description 60
- 239000002699 waste material Substances 0.000 title claims abstract description 40
- 239000002253 acid Substances 0.000 title claims abstract description 34
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 20
- 230000008569 process Effects 0.000 title claims description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 46
- 239000007921 spray Substances 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 238000000197 pyrolysis Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a waste acid cracking furnace for 1,4 butanediol industry, which comprises a cracking furnace chamber, wherein one end of the cracking furnace chamber is provided with a furnace mouth, the middle position of the furnace mouth is communicated with a waste acid pipeline, an atomizing spray head is arranged on the waste acid pipeline positioned on the inner side of the furnace mouth, electric igniters are arranged on two sides of the atomizing spray head, and a cleaning mechanism is arranged on the atomizing spray head; the invention has simple structure and novel design, the special cleaning mechanism can clean the atomizing nozzle under the driving of the pushing mechanism, the problem that the end part can be blocked by condensed elemental sulfur to cause the reduction of the atomizing effect is prevented, and in addition, the cleaning is more convenient and quicker and the time and the labor are saved due to the automatic cleaning mode.
Description
Technical Field
The invention relates to the technical field of waste acid cracking, in particular to a waste acid cracking furnace and a cracking process for 1,4 butanediol industry.
Background
With the continuous development of industrial technology and the continuous expansion of industrial production, the environmental pollution is increasingly serious; in particular, the 1,4 butanediol industry uses sulfuric acid as production auxiliary raw material to produce waste sulfuric acid which can not be treated, some uses acid-base comprehensive treatment, and some uses stockpiling and storing method, which wastes resources and causes pollution to environment.
The cracking furnace is adopted for waste acid treatment in the prior art, but when waste acid is treated, partial sulfides in the cracking furnace can be reduced into elemental sulfur or sulfur steam, the elemental sulfur or the sulfur steam is easy to condense and adhere to the end part of the waste acid spray head, so that the spray head is blocked, the atomization effect of the sprayed waste sulfuric acid is reduced, the subsequent reaction process is lengthened or the reaction is insufficient, and therefore workers need to replace the waste acid spray head regularly, and time and labor are wasted.
Disclosure of Invention
The invention aims to provide a waste acid cracking furnace and a cracking process for 1,4 butanediol industry, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a waste acid cracking furnace for 1,4 butanediol industry comprises a cracking furnace chamber, wherein a furnace mouth is arranged at one end of the cracking furnace chamber, a waste acid pipeline is communicated with the middle position of the furnace mouth, an atomizing spray head is arranged on the waste acid pipeline positioned on the inner side of the furnace mouth, electric igniters are arranged on two sides of the atomizing spray head, and a cleaning mechanism is arranged on the atomizing spray head;
the cleaning mechanism comprises an annular mounting plate, the annular mounting plate is sleeved on the atomizing spray head, the inner wall of the annular mounting plate is arranged in a step shape, a plurality of limiting pins are fixed on an upper step of the annular mounting plate, a movable ring is further arranged on the upper step of the annular mounting plate, a plurality of arc-shaped limiting holes are formed in the movable ring, and the limiting holes are sleeved on the limiting pins;
a push rod is arranged on the outer wall of the movable ring, one end of the push rod penetrates through a strip-shaped hole in the annular mounting plate and is arranged on the outer side of the annular mounting plate, and the end part of the push rod is connected with a pushing mechanism;
be equipped with a plurality of connecting holes on the inner wall of movable ring, every rotate the first connecting rod of being connected on the connecting hole, the other end of first connecting rod rotates the brush head that is the triangle-shaped shape of being connected, the edge of brush head is equipped with the fixed orifices, and is a plurality of the brush head can make up into a circular, be equipped with the brush hair on the lower terminal surface of brush head.
Preferably, an annular shell is fixed on a lower step of the annular mounting plate, the shell is positioned at the periphery of the atomizing spray head, a plurality of screw rods are arranged on the shell, and the screw rods are respectively in rotary connection with the corresponding fixing holes;
the furnace mouth induction type furnace mouth comprises a shell, and is characterized in that an annular spray head is arranged in the shell, a plurality of nozzles are arranged on the spray head, one end of the spray head is connected with a liquid inlet pipe, one end of the liquid inlet pipe penetrates through an annular mounting plate and is connected with a liquid storage tank on the outer side of the furnace mouth, and an induction type valve is arranged on the liquid inlet pipe.
Preferably, pushing mechanism includes the pivot, the rotating electrical machines of furnace mouth outer wall is being connected to the one end of pivot, the other end of pivot is fixed with the second connecting rod, the tip of second connecting rod rotates the tip of connecting in the push rod, the interlude of push rod 322 is equipped with the connecting axle, the third connecting rod is being connected to the connecting axle, the tip of third connecting rod is equipped with the sensor, the third connecting rod is the slope form and sets up.
Preferably, the cracking furnace chamber is connected with a fuel nozzle, the top of the furnace nozzle is communicated with an oxygen supply pipeline, the bottom of the furnace nozzle is communicated with a cleaning channel, and a sealing door is arranged on the cleaning channel.
Preferably, a plurality of leakage holes are formed in the outer wall of the lower portion of the annular mounting plate, and the plurality of leakage holes are opposite to the cleaning channel.
Preferably, the waste sulfuric acid cracking process comprises the following specific steps:
firstly, introducing sufficient oxygen through an oxygen supply pipeline, then starting an electric igniter, and then spraying fuel required by combustion into a cracking furnace cavity to enable the temperature in the cracking furnace cavity to rise to the temperature required by cracking;
secondly, spraying the waste sulfuric acid from the atomizing spray head to spray the waste sulfuric acid into a cracking furnace cavity in a mist shape for full reaction, wherein air is intermittently introduced into an oxygen supply pipeline in the reaction process so as to prevent the oxygen content in the waste sulfuric acid cracking furnace from being too low;
after cracking, recovering waste heat of a product generated by cracking, and then feeding the product into a subsequent acid making system;
step four, after cracking is completed each time, cleaning the elemental sulfur condensed in the hole of the atomizing nozzle, wherein the specific cleaning mode is as follows:
the pushing mechanism is utilized to drive the push rod to swing forwards in the strip-shaped hole, the brush heads are closed into a circle to block the atomizing spray head, the third connecting rod also swings along with the swinging, and in the swinging process, after a sensor on the third connecting rod enters the sensing range of the sensing valve, the sensing valve is opened, so that cleaning emulsion is sprayed on the atomizing spray head;
the pushing mechanism is used for driving the push rod to swing backwards in the strip-shaped hole, the multiple brush heads can be dispersed, the bristles can scrub the atomizing spray head in the dispersing process, the reacted emulsion can be scraped away and falls into the leakage hole in the process that the brush head group is opened for scrubbing, the third connecting rod can swing along with the brush head group, the third connecting rod is far away from the sensing range of the sensing type valve in the swinging process, and the emulsion cannot be sprayed and cleaned when the brush head group is opened;
the atomizing nozzle can be repeatedly cleaned by the cleaning mode, and waste materials are discharged from the cleaning channel after cleaning is finished;
and step five, after cleaning, putting the waste acid cracking furnace into use for cracking the waste acid in the steps one to three.
Compared with the prior art, the invention has the beneficial effects that: the invention has simple structure and novel design, the special cleaning mechanism can clean the atomizing nozzle under the driving of the pushing mechanism, the problem that the end part can be blocked by condensed elemental sulfur to cause the reduction of the atomizing effect is prevented, and in addition, the cleaning is more convenient and quicker and the time and the labor are saved due to the automatic cleaning mode.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the internal structure of the snout of the present invention;
FIG. 3 is a schematic view of the cleaning mechanism of the present invention in an expanded configuration;
FIG. 4 is a schematic view of the cleaning mechanism of the present invention in a closed configuration;
FIG. 5 is a schematic cross-sectional view of the cleaning mechanism of the present invention;
FIG. 6 is a schematic bottom view of the annular mounting plate of the present invention;
fig. 7 is a schematic view of the structure of the brush head of the present invention.
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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the invention and simplifying the description, but do not indicate or imply that the device or the element to which the description refers must have a specific orientation, be configured in a specific orientation, and operate, and thus, cannot be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-7, the present invention provides a technical solution:
the utility model provides a waste acid pyrolysis furnace for 1,4 butanediol trade, includes pyrolysis furnace chamber 1, the one end of pyrolysis furnace chamber 1 is equipped with furnace mouth 2, the intermediate position intercommunication of furnace mouth 2 has spent acid pipeline 21, is located be equipped with atomizer 22 on the inboard spent acid pipeline of furnace mouth 21, be located atomizer 22's both sides are equipped with electric igniter 23, be equipped with clean mechanism 3 on the atomizer 22.
In this embodiment, the cleaning mechanism 3 includes an annular mounting plate 31, the annular mounting plate 31 is fixedly sleeved on the atomizing nozzle 22, the inner wall of the annular mounting plate 31 is arranged in a step shape, a plurality of limiting pins 311 are arranged on an upper step of the annular mounting plate 31, a movable ring 32 is arranged on the upper step of the annular mounting plate 31, a plurality of arc-shaped limiting holes 321 are formed in the movable ring 32, and the limiting holes 321 are sleeved on the limiting pins 311, so that the movable ring can rotate within a certain range;
the push rod 322 is arranged on the outer wall of the movable ring 32, one end of the push rod 322 penetrates through the strip-shaped hole 312 in the annular mounting plate 31 and is arranged outside the annular mounting plate 31, and therefore the movable ring can rotate only by pushing the push rod;
then, a pushing mechanism 4 is connected to the end of the push rod 322 to facilitate automatic pushing.
In this embodiment, a plurality of connection holes 323 are formed in the inner wall of the movable ring 32, each connection hole 323 is rotatably connected to a first connection rod 324, and the other end of the first connection rod 324 is rotatably connected to a triangular brush head 34, so that when the movable ring is rotated, the first connection rod can be used to drive the brush head to rotate, and a fixing hole 341 is further formed at the corner of the brush head 34;
an annular shell 35 is fixed on a lower landing of the annular mounting plate 31, the shell 35 is located on the periphery of the atomizing nozzle 22, a plurality of screws 351 are arranged on the shell 35, and then the screws 351 are respectively and rotatably connected with the corresponding fixing holes 341, so that when a movable ring is rotated, a first connecting rod can be used for driving the brush head to be closed or opened, a plurality of brush heads 34 can be combined into a circle when being closed, bristles 342 are arranged on the lower end face of the brush head 34 and used for brushing the surface of the atomizing nozzle, and the atomizing nozzle is brushed through reciprocating closing and opening;
in addition, an annular spray head 36 is arranged in the housing 35, a plurality of nozzles 361 are arranged on the spray head 36 and surround the periphery of the atomizing spray head, then one end of the spray head 361 is connected with a liquid inlet pipe 362, the other end of the liquid inlet pipe 362 penetrates through the annular mounting plate 31 to be connected with a liquid storage tank 363 outside the furnace mouth 2, and therefore cleaning emulsion can be provided through the liquid inlet pipe, and meanwhile, an induction type valve 364 is arranged on the liquid inlet pipe 363 and used for opening and closing the liquid inlet pipe.
In this embodiment, the pushing mechanism 4 includes a rotating shaft 41, and one end of the rotating shaft 41 is connected to a rotating motor 42 on the outer wall of the furnace mouth 2, so that when the rotating motor rotates, the other end of the rotating shaft 41 rotates a second connecting rod 411 connected through a connecting block, and moves along with the rotating motor under the pulling action of the second connecting rod 411, and then the end of the second connecting rod 411 is rotatably connected to the end of the push rod 322, so that the push rod can be pulled to swing; a connecting shaft 412 is arranged at the middle section of the push rod 322, and the connecting shaft is connected with a third connecting rod 414, so that when the push rod swings, not only the movable ring can rotate to drive the plurality of brush heads to be closed or opened, but also the third connecting rod 414 is obliquely arranged to move forwards or backwards under the traction of the connecting shaft, so that a sensor 415 arranged at the end part of the third connecting rod 414 can open the valve after the third connecting rod moves forwards to an induction area of the induction type valve;
the rotating bearing 413 is fixed on the outer wall of the annular mounting plate 31 through a mounting frame 416, and stability in pushing is ensured.
In the embodiment, the fuel nozzle 11 is connected to the cracking furnace chamber 1, so that fuel required for combustion can be sprayed into the cracking furnace chamber, and the top of the furnace mouth 2 is communicated with the oxygen supply pipeline 24, so that oxygen can be continuously supplied in the combustion process, and the combustion efficiency is improved; in addition, the bottom of the furnace mouth 2 is communicated with a cleaning channel 25, so that the generated waste water can be discharged from the cleaning channel when the atomizing nozzle is cleaned subsequently, and meanwhile, a sealing door 251 is arranged on the cleaning channel 25, so that the whole cracking furnace is in a sealed state in the combustion process;
because be equipped with a plurality of small openings 312 on the below outer wall of annular mounting panel 31, and it is a plurality of small opening 312 is just to clearance passageway 25, therefore the waste water after the clearance can be followed the small opening and discharged, falls into the clearance passageway, and discharges.
In this embodiment, the cracking process of the waste sulfuric acid comprises the following specific steps:
firstly, introducing sufficient oxygen through an oxygen supply pipeline, then starting an electric igniter, and then spraying fuel required by combustion into a cracking furnace cavity to raise the temperature in the cracking furnace cavity to the temperature required by cracking;
secondly, spraying the waste sulfuric acid from the atomizing spray head to spray the waste sulfuric acid into the cavity of the cracking furnace in a mist form for full reaction, and intermittently introducing air into an oxygen supply pipeline in the reaction process to prevent the oxygen content in the waste sulfuric acid cracking furnace from being too low;
after cracking, recovering waste heat of a product generated by cracking, and then feeding the product into a subsequent acid making system;
step four, after cracking is completed each time, cleaning the elemental sulfur condensed in the hole of the atomizing nozzle, wherein the specific cleaning mode is as follows:
the pushing mechanism is utilized to drive the push rod to swing forwards in the strip-shaped hole, the brush heads are closed into a circle to block the atomizing spray head, the third connecting rod also swings along with the swinging, and in the swinging process, after a sensor on the third connecting rod enters the sensing range of the sensing valve, the sensing valve is opened, so that cleaning emulsion is sprayed on the atomizing spray head;
the pushing mechanism is used for driving the push rod to swing backwards in the strip-shaped hole, the multiple brush heads can be dispersed, the bristles can scrub the atomizing spray head in the dispersing process, the reacted emulsion can be scraped away and falls into the leakage hole in the process that the brush head group is opened for scrubbing, the third connecting rod can swing along with the brush head group, the third connecting rod is far away from the sensing range of the sensing type valve in the swinging process, and the emulsion cannot be sprayed and cleaned when the brush head group is opened;
the atomizing nozzle can be repeatedly cleaned by the cleaning mode, and waste materials are discharged from the cleaning channel after cleaning is finished;
and step five, after cleaning, putting the waste acid cracking furnace into use for cracking the waste acid in the steps one to three.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a spent acid pyrolysis furnace for 1,4 butanediol trade, includes pyrolysis furnace chamber 1, the one end of pyrolysis furnace chamber 1 is equipped with furnace mouth 2, the intermediate position intercommunication of furnace mouth 2 has spent acid pipeline 21, is located be equipped with atomizer 22 on the inboard spent acid pipeline of furnace mouth 21, be located atomizer 22's both sides are equipped with electric igniter 23, be equipped with clean mechanism 3 on the atomizer 22, its characterized in that: the cleaning mechanism 3 comprises an annular mounting plate 31, the annular mounting plate 31 is sleeved on the atomizing spray head 22, the inner wall of the annular mounting plate 31 is arranged in a step shape, a plurality of limiting pins 311 are fixed on an upper step of the annular mounting plate 31, a movable ring 32 is further arranged on the upper step of the annular mounting plate 31, a plurality of arc-shaped limiting holes 321 are formed in the movable ring 32, and the limiting holes 321 are sleeved on the limiting pins 311;
a push rod 322 is arranged on the outer wall of the movable ring 32, one end of the push rod 322 passes through the strip-shaped hole 312 on the annular mounting plate 31 and is arranged outside the annular mounting plate 31, and the end part of the push rod 322 is connected with a pushing mechanism 4;
the inner wall of the movable ring 32 is provided with a plurality of connecting holes 323, each connecting hole 323 is rotatably connected with a first connecting rod 324, the other end of each first connecting rod 324 is rotatably connected with a triangular brush head 34, the corners of the brush heads 34 are provided with fixing holes 341, the brush heads 34 can be combined into a circle, and the lower end face of each brush head 34 is provided with bristles 342.
2. The spent acid cracking furnace for 1,4 butanediol industry of claim 1, wherein: an annular shell 35 is fixed on the lower step of the annular mounting plate 31, the shell 35 is positioned at the periphery of the atomizing nozzle 22, a plurality of screws 351 are arranged on the shell 35, and the screws 351 are respectively connected with the corresponding fixing holes 341 in a rotating manner;
the furnace mouth structure is characterized in that an annular spray head 36 is arranged in the shell 35, a plurality of nozzles 361 are arranged on the spray head 36, one end of the spray head 36 is connected with a liquid inlet pipe 362, one end of the liquid inlet pipe 362 penetrates through the annular mounting plate 31 to be connected with a liquid storage tank 363 on the outer side of the furnace mouth 2, and an induction type valve 364 is arranged on the liquid inlet pipe 362.
3. The spent acid cracking furnace for 1,4 butanediol industry of claim 1, wherein: push mechanism 4 includes pivot 41, the rotating electrical machines 42 of furnace mouth 2 outer wall is being connected to the one end of pivot 41, the other end of pivot 41 passes through the connecting block and rotates and connect second connecting rod 411, the tip of second connecting rod 411 rotates and connects in the tip of push rod 322, the interlude of push rod 322 is equipped with connecting axle 412, third connecting rod 414 is being connected to the connecting axle, the tip of third connecting rod 414 is equipped with sensor 415, third connecting rod 414 is the slope form setting.
4. A spent acid cracking furnace for 1,4 butanediol industry as in claim 1, wherein: the cracking furnace chamber 1 is connected with a fuel nozzle 11, the top of the furnace mouth 2 is communicated with an oxygen supply pipeline 24, the bottom of the furnace mouth 2 is communicated with a cleaning channel 25, and the cleaning channel 25 is provided with a sealing door 251.
5. The spent acid cracking furnace for 1,4 butanediol industry of claim 1, wherein: a plurality of leakage holes 312 are arranged on the outer wall below the annular mounting plate 31, and the plurality of leakage holes 312 are opposite to the cleaning channel 25.
6. The spent acid cracking furnace for 1,4 butanediol industry of claim 1, wherein: the waste sulfuric acid cracking process comprises the following specific steps:
firstly, introducing sufficient oxygen through an oxygen supply pipeline, then starting an electric igniter, and then spraying fuel required by combustion into a cracking furnace cavity to enable the temperature in the cracking furnace cavity to rise to the temperature required by cracking;
secondly, spraying the waste sulfuric acid from the atomizing spray head to spray the waste sulfuric acid into the cavity of the cracking furnace in a mist form for full reaction, and intermittently introducing air into an oxygen supply pipeline in the reaction process to prevent the oxygen content in the waste sulfuric acid cracking furnace from being too low;
after cracking, recovering waste heat of a product generated by cracking, and then feeding the product into a subsequent acid making system;
step four, after cracking is completed each time, cleaning the elemental sulfur condensed in the hole of the atomizing nozzle, wherein the specific cleaning mode is as follows:
the pushing mechanism is utilized to drive the push rod to swing forwards in the strip-shaped hole, the plurality of brush heads can be closed into a circle to block the atomizing nozzle, the third connecting rod can swing along with the pushing mechanism, in the swinging process, the inductive valve can be opened after a sensor on the third connecting rod enters the inductive range of the inductive valve, so that cleaning emulsion is sprayed on the atomizing nozzle, and due to the blocking of the brush heads, the cleaning emulsion can be prevented from being sprayed outside, and the complete reaction with condensed elemental sulfur is ensured;
the pushing mechanism is used for driving the push rod to swing backwards in the strip-shaped hole, the plurality of brush heads can be dispersed, the bristles can scrub the atomizing spray head in the dispersing process, the reacted emulsion can be scraped away and falls into the leaking hole in the brushing opening process of the brush head group, meanwhile, the third connecting rod can swing along with the brush head group, and the third connecting rod is far away from the sensing range of the sensing type valve in the swinging process, so that the emulsion cannot be sprayed and cleaned when the brush head group is opened;
the atomizing nozzle can be repeatedly cleaned by the cleaning mode, and waste materials are discharged from the cleaning channel after cleaning is finished;
and step five, after cleaning, putting the waste acid cracking furnace into use for cracking the waste acid in the steps one to three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847829.XA CN115231528B (en) | 2022-07-19 | 2022-07-19 | Waste acid cracking furnace and cracking process for 1,4 butanediol industry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210847829.XA CN115231528B (en) | 2022-07-19 | 2022-07-19 | Waste acid cracking furnace and cracking process for 1,4 butanediol industry |
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| CN115231528A true CN115231528A (en) | 2022-10-25 |
| CN115231528B CN115231528B (en) | 2023-10-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116161627A (en) * | 2022-12-13 | 2023-05-26 | 福建天甫电子材料有限公司 | Sulfur incinerator for electronic grade sulfuric acid preparation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116161627A (en) * | 2022-12-13 | 2023-05-26 | 福建天甫电子材料有限公司 | Sulfur incinerator for electronic grade sulfuric acid preparation |
| CN116161627B (en) * | 2022-12-13 | 2023-08-22 | 福建天甫电子材料有限公司 | Sulfur incinerator for electronic grade sulfuric acid preparation |
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| Publication number | Publication date |
|---|---|
| CN115231528B (en) | 2023-10-17 |
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