CN110656238A - Acid adding device and high-pressure kettle with same - Google Patents
Acid adding device and high-pressure kettle with same Download PDFInfo
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- CN110656238A CN110656238A CN201911030661.8A CN201911030661A CN110656238A CN 110656238 A CN110656238 A CN 110656238A CN 201911030661 A CN201911030661 A CN 201911030661A CN 110656238 A CN110656238 A CN 110656238A
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- 239000002253 acid Substances 0.000 title claims abstract description 288
- 238000007789 sealing Methods 0.000 claims abstract description 129
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims description 60
- 230000020477 pH reduction Effects 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 17
- 230000002349 favourable effect Effects 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 9
- 238000002386 leaching Methods 0.000 description 9
- 230000002035 prolonged effect Effects 0.000 description 7
- 230000002411 adverse Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001710 laterite Inorganic materials 0.000 description 1
- 239000011504 laterite Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an acid adding device and an autoclave with the same, comprising: an acid addition channel; the first sealing element is welded on the outer wall of one end part of the acid adding channel and is suitable for stopping and sealing the concentrated sulfuric acid pipeline; the first connecting piece is movably arranged around the acid adding channel, is positioned on one side of the first sealing piece and is suitable for fixing a concentrated sulfuric acid pipeline; the second connecting piece is movably arranged around the acid adding channel, is positioned on one side of the first connecting piece away from the first sealing piece, and is suitable for being connected with a pipe orifice of the autoclave; and the second sealing element is welded on the outer wall of the acid adding channel, is positioned on one side of the second connecting element far away from the first connecting element, and is suitable for stopping and sealing the mouth of the high-pressure kettle. The acid adding device is simple in structure, and is beneficial to improving the sealing performance and the connection stability between the external concentrated sulfuric acid pipeline and the pipe orifice of the high-pressure kettle.
Description
Technical Field
The invention belongs to the field of hydrometallurgy equipment, and particularly relates to an acid adding device and an autoclave with the same.
Background
At present, the wet-method pressure leaching smelting process is widely applied, and the high-pressure kettle is the main equipment for pressure leaching and provides a required high-temperature, high-pressure and high-acid environment for ore pulp leaching. Mixing the ore pulp with 98 wt% of concentrated sulfuric acid according to a certain acid-ore ratio under the high-temperature and high-pressure condition of 240-260 ℃, and strongly stirring, dissolving and reacting to obtain a leaching solution of metal ions. Under the working condition, the device which is arranged on the autoclave body and used for adding concentrated sulfuric acid has higher requirements, and is also an extremely key device in the pressure leaching process. The existing acid adding device has a complex structure, has large thermal stress along with the temperature change of the high-pressure kettle, is easy to corrode under various sulfuric acid concentrations and temperatures, is easy to cause the problem of medium leakage, and poses certain threat to the safety of production personnel. Meanwhile, the acid adding device extends into the high-pressure kettle, the slurry in the high-pressure kettle has large disturbance, the acid adding device shakes greatly, the fatigue damage is serious, and the service life of the acid adding device is obviously shortened. Furthermore, under the comprehensive effect of the problems, the acid adding device is easy to lose efficacy, so that the production system is frequently stopped, the production operation rate is obviously reduced, and the operation cost is increased.
Therefore, the existing acid adding device needs to be further improved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide an acid adding device and an autoclave with the same. This acidification device simple structure, and adopt this acidification device to be favorable to improving the sealing performance and the connection stability ability between acidification device and external concentrated sulfuric acid pipeline and the autoclave mouth of pipe, and then be favorable to reducing the production potential safety hazard, reduce system's stop frequency, reduce economic loss, conveniently dismantle simultaneously acidification device and maintain.
In one aspect of the invention, the invention provides an acid adding apparatus, according to an embodiment of the invention, comprising:
an acid addition channel;
the first sealing element is welded on the outer wall of one end part of the acid adding channel and is suitable for stopping and sealing the concentrated sulfuric acid pipeline;
the first connecting piece is movably arranged around the acid adding channel, is positioned on one side of the first sealing piece and is suitable for fixing a concentrated sulfuric acid pipeline;
the second connecting piece is movably arranged around the acid adding channel, is positioned on one side of the first connecting piece away from the first sealing piece, and is suitable for being connected with a pipe orifice of the autoclave;
and the second sealing element is welded on the outer wall of the acid adding channel, is positioned on one side of the second connecting element far away from the first connecting element, and is suitable for stopping and sealing the mouth of the high-pressure kettle.
According to the acid adding device provided by the embodiment of the invention, the first sealing element is welded on the outer wall of one end part of the acid adding channel, so that the connection with an external concentrated sulfuric acid pipeline is favorably realized, the distance of the external concentrated sulfuric acid pipeline extending into the acid adding channel of the acid adding device is limited, meanwhile, the sealing is realized, the adverse effect on materials in a high-pressure kettle is avoided, and the leakage of the concentrated sulfuric acid is also avoided; furthermore, the first connecting piece is movably arranged around the acid adding channel, when the external concentrated sulfuric acid pipeline is required to add acid to the autoclave, the first connecting piece and the concentrated sulfuric acid pipeline are detachably connected, so that the external concentrated sulfuric acid pipeline can be fixed, the acid adding process is facilitated, and the movable arrangement is also favorable for removing the connection with the concentrated sulfuric acid pipeline when the external concentrated sulfuric acid pipeline is not required; the second connecting piece is movably arranged around the acid adding channel, when the high-pressure kettle needs to be added with acid, the second connecting piece is detachably connected with the mouth of the high-pressure kettle, the acid adding device can be fixed, the acid adding process is convenient to go forward, and the movable arrangement is also beneficial to removing the connection with the mouth of the high-pressure kettle when the high-pressure kettle does not need to be added with acid; the second sealing member welds in acidification passageway outer wall, accessible second sealing member is confirmed to add the acid device and is stretched into the length in the autoclave on the one hand, adopt the welded mode to avoid rocking and lead to the not hard up problem of second sealing member to appear because of adding the acid passageway on the one hand, and then can avoid the problem of sealed inefficacy, reduce the potential safety hazard, and can realize sealedly through the second sealing member, separate autoclave inner space and outside space, reduce the influence of external environment to material and reaction in the autoclave, also avoid the appearance of leakage problem. Therefore, the acid adding device is simple in structure, and the acid adding device is favorable for improving the sealing performance and the connection stability between the acid adding device and the pipe orifice of the external concentrated sulfuric acid pipeline and the high-pressure kettle, so that the potential safety hazard of production is reduced, the system shutdown frequency is reduced, the economic loss is reduced, and meanwhile, the acid adding device is convenient to disassemble and maintain.
In addition, the acid adding device according to the above embodiment of the present invention may further have the following additional technical features:
in some embodiments of the present invention, the acid adding apparatus further comprises: the limiting part is welded on the outer wall of the acid adding channel and is positioned between the first connecting part and the second connecting part.
In some embodiments of the present invention, the position-limiting member is made of a special material.
In some embodiments of the present invention, the distance from the stopper to the first sealing member is 35 to 55% of the distance from the second sealing member to the first sealing member.
In some embodiments of the present invention, the acid adding apparatus further comprises: the supporting piece is arranged around the outer wall of the acid adding channel, one end of the supporting piece is connected with the second sealing piece and far away from the second connecting piece, and at least one part of the supporting piece is connected with the outer wall of the acid adding channel.
In some embodiments of the invention, one end of the support member is welded to the second sealing member, and at least a portion of the support member is welded to the outer wall of the acid adding channel.
In some embodiments of the invention, the support comprises: the supporting part is arranged around the acid adding channel, one end of the supporting part is connected with the second sealing part and is far away from the second connecting part, and at least one part of the supporting part is connected with the outer wall of the acid adding channel; a reinforcement portion disposed around the support portion and connected to at least a portion of the support portion.
In some embodiments of the present invention, the reinforcing part is connected to the supporting part by welding.
In some embodiments of the invention, the support is a cross-shaped support.
In some embodiments of the present invention, the acid adding channel, the first sealing element, the second sealing element, the supporting portion and the reinforcing portion are made of special materials.
In some embodiments of the invention, the acid addition channel is a pipe.
In some embodiments of the invention, the first connector and the second connector are both flanges.
In some embodiments of the invention, the first seal and the second seal are both flange backing rings.
In some embodiments of the present invention, the distance from the second seal to the first seal is 10 to 15% of the length of the acid adding passage.
In a further aspect of the invention, the invention proposes an autoclave, according to an embodiment of the invention, comprising:
the kettle body is provided with a high-pressure kettle pipe orifice;
the acid adding device is the acid adding device, the second sealing element is stopped against the mouth of the high-pressure kettle to seal the high-pressure kettle, and the second connecting piece is connected with the mouth of the high-pressure kettle;
the fixing piece, the one end of fixing piece with the internal wall of cauldron links to each other, the other end of fixing piece with add sour device add sour passageway outer wall detachably and connect.
According to the high-pressure kettle provided by the embodiment of the invention, the acid adding device is adopted, the acid adding device is favorable for improving the sealing performance and the connection stability between the acid adding device and an external concentrated sulfuric acid pipeline as well as between the acid adding device and the orifice of the high-pressure kettle, the production potential safety hazard of the high-pressure kettle is further favorably reduced, the system shutdown frequency is reduced, the economic loss is reduced, meanwhile, the acid adding device is simple in structure and convenient to maintain, the fixing piece is arranged in the high-pressure kettle to fix the acid adding device, the shaking amplitude of the acid adding device in the production process is favorably reduced, the fatigue damage to the acid adding device caused by the pulp disturbance in the high-pressure kettle is reduced, and the; furthermore, the fixing piece and the acid adding device are detachably connected, so that the acid adding device is convenient to detach and maintain. Therefore, the autoclave adopts the acid adding device and the acid adding device fixing mode to realize continuous, stable, quick and safe acid adding operation of the autoclave pressure leaching process, the acid adding device is simple in structure and convenient to disassemble and maintain, meanwhile, the service life of the acid adding device is more than 5 times that of the conventional acid adding device, only the acid adding device of the autoclave saves spare part cost for an enterprise every year and reaches more than 1000 RMB (the cost of yield loss caused by system shutdown is not included), and the production and operation cost of the enterprise is remarkably reduced.
In addition, the autoclave according to the above embodiment of the present invention may also have the following additional technical features:
in some embodiments of the invention, the fixture comprises: the first fixing piece is provided with a wrapping part, the wrapping part is detachably connected with the acid adding channel, and at least one part of the wrapping part wraps the acid adding channel; the second fixing piece is arranged on two sides of the acid adding channel, one end of the second fixing piece is connected with the inner wall of the kettle body, and the other end of the second fixing piece is connected with the end portion of the first fixing piece.
In some embodiments of the present invention, one end of the second fixing element is welded to the inner wall of the kettle body, and the second fixing element is connected to the end of the first fixing element by welding.
In some embodiments of the invention, the second fixing pieces are symmetrically arranged on two sides of the acid adding channel.
In some embodiments of the invention, the distance from the longitudinal axis of the wrap to the end of the acid addition channel remote from the first seal is no less than 300-400mm in the horizontal direction.
In some embodiments of the present invention, the first fixing member is selected from at least one of a hoop and a collet.
In some embodiments of the present invention, the first fixing element and the second fixing element are made of titanium.
In some embodiments of the invention, a plurality of said fixing members is included.
In some embodiments of the invention, the distance between the longitudinal axes of two connected parcels in the horizontal direction is 400-800 mm.
In some embodiments of the invention, two adjacent second fixing pieces on the same side of the acid adding channel are connected.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an acid adding apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an acid adding apparatus according to yet another embodiment of the present invention;
FIG. 3 is a schematic diagram of an acid adding apparatus according to yet another embodiment of the present invention;
FIG. 4 is a schematic view of a partial structure of an autoclave having an acid adding apparatus according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In one aspect of the present invention, the present invention provides an acid adding apparatus, according to an embodiment of the present invention, with reference to fig. 1, the acid adding apparatus including: an acid addition channel 100, a first seal 200, a first connector 300, a second connector 400, and a second seal 500.
The acid addition passage 100 is adapted to add acid to the autoclave in accordance with an embodiment of the present invention. It should be noted that the specific shape and material of the acid adding channel are not particularly limited, and those skilled in the art can select the acid adding channel according to actual needs, for example, the acid adding channel may be a pipe, and the material may be a special material. When the acid adding channel is a pipe, the diameter of the pipe is not particularly limited, and the person skilled in the art can select the diameter according to actual needs. The inventor finds that the acid adding channel is made of special materials, so that intercrystalline corrosion can be effectively prevented, and the service life of the acid adding channel is prolonged.
According to an embodiment of the present invention, the first sealing member 200 is welded to an outer wall of an end portion of the acid adding passage 100 and adapted to stop and seal the concentrated sulfuric acid pipeline. The inventor finds, through welding first sealing member on the outer wall of acidification passageway one end portion, be favorable to realizing being connected with external concentrated sulfuric acid pipeline, and limit external concentrated sulfuric acid pipeline and stretch into the distance that adds in the acid device acidification passageway, realize sealed simultaneously, avoid causing adverse effect to the interior material of autoclave, also can avoid concentrated sulfuric acid to leak, furthermore, first sealing member lug weld is on the outer wall of acidification passageway one end portion, can further avoid the leakage of concentrated sulfuric acid, and welded form also is favorable to avoiding adding the acid in-process and rock and lead to its not hard up problem appearance because of acidification passageway, further avoid the problem appearance of concentrated sulfuric acid leakage. It should be noted that the material of the first sealing element is not particularly limited, and those skilled in the art can select the material according to actual needs, for example, the material may be a special material, such as a special material similar to the acid adding channel. The inventor finds that the material of the first sealing element is consistent with the material of the acid adding channel, so that the welding process performance between the first sealing element and the acid adding channel is favorably met, the first sealing element is made of special materials and can effectively resist intergranular corrosion, and the service life of the first sealing element is favorably prolonged. Further, the specific type of the first sealing element is not particularly limited, and may be selected by those skilled in the art according to actual needs, such as a flange backing ring.
According to the embodiment of the present invention, the first connecting member 300 is movably disposed around the acid adding passage 100 and is located at one side of the first sealing member 200, and is adapted to fix the concentrated sulfuric acid pipeline. The inventor finds that the first connecting piece annularly adds sour passageway activity setting, when needs external concentrated sulfuric acid pipeline in order to add sour for the autoclave, through detachably connecting first connecting piece and concentrated sulfuric acid pipeline, can realize the fixed of external concentrated sulfuric acid pipeline, conveniently add the direct motion of sour process, and the activity sets up and also is favorable to removing the connection with concentrated sulfuric acid pipeline when not needing external concentrated sulfuric acid pipeline. It should be noted that the specific type of the first connecting member is not particularly limited, and those skilled in the art can select the first connecting member according to actual needs, for example, the first connecting member may be a flange, which facilitates the disassembly and maintenance of the acid adding device.
According to an embodiment of the present invention, the second connector 400 is movably disposed around the acid adding passage 100 and is located on a side of the first connector 300 away from the first seal member 200, and is adapted to connect to an autoclave nozzle. The inventor finds that the second connecting piece is movably arranged around the acid adding channel, when the high-pressure kettle needs to be added with acid, the acid adding device can be fixed by detachably connecting the second connecting piece and the mouth of the high-pressure kettle, the acid adding process is convenient to move, and the movable arrangement is also beneficial to releasing the connection with the mouth of the high-pressure kettle when the high-pressure kettle does not need to be added with acid. It should be noted that the specific type of the second connecting member is not particularly limited, and those skilled in the art can select the second connecting member according to actual needs, for example, the second connecting member may be a flange, which facilitates the disassembly and maintenance of the acid adding device.
According to an embodiment of the present invention, the second sealing member 500 is welded to the outer wall of the acid adding passage 100 and is located on the side of the second connecting member 400 away from the first connecting member 300, and is adapted to stop and seal the autoclave nozzle. The inventor finds that the second sealing element is welded on the outer wall of the acid adding channel, on one hand, the length of the acid adding device extending into the high-pressure kettle can be determined through the second sealing element, on the other hand, the problem that the second sealing element is loosened due to shaking of the acid adding channel can be avoided by adopting a welding mode, further, the problem of sealing failure can be avoided, the potential safety hazard is reduced, sealing can be realized through the second sealing element, the space in the high-pressure kettle is separated from the external space, the influence of the external environment on substances and reaction in the high-pressure kettle is reduced, and the leakage problem is also avoided. It should be noted that the material of the second sealing element is not particularly limited, and those skilled in the art can select the material according to actual needs, for example, the material may be a special material, such as a special material similar to the acid adding channel. The inventor finds that the material of the second sealing element is consistent with the material of the acid adding channel, so that the welding process performance between the second sealing element and the acid adding channel is favorably met, and the second sealing element is made of special materials and can effectively resist intergranular corrosion, so that the service life of the second sealing element is favorably prolonged. Further, the specific type of the second sealing element is not particularly limited, and may be selected by those skilled in the art according to actual needs, such as a flange backing ring. Further, the distance from the second sealing member 500 to the first sealing member 200 is not particularly limited, and may be selected by those skilled in the art according to actual needs, for example, the distance from the second sealing member to the first sealing member may be 10 to 15% of the length of the acid adding passage. The inventor finds that if the distance between the second sealing element and the first sealing element is too long, the length of the acid adding device extending into the autoclave is relatively too short, and the potential corrosion hazard of the autoclave is brought; if the distance from the second sealing element to the first sealing element is too short, the length of the acid adding device extending into the high-pressure kettle is too long, concentrated sulfuric acid and ore pulp cannot be fully mixed, the leaching rate of the high-pressure kettle is reduced, and meanwhile, the corrosion hidden trouble of the high-pressure kettle can be brought.
According to the acid adding device provided by the embodiment of the invention, the first sealing element is welded on the outer wall of one end part of the acid adding channel, so that the connection with an external concentrated sulfuric acid pipeline is favorably realized, the distance of the external concentrated sulfuric acid pipeline extending into the acid adding channel of the acid adding device is limited, meanwhile, the sealing is realized, the adverse effect on materials in a high-pressure kettle is avoided, and the leakage of the concentrated sulfuric acid is also avoided; furthermore, the first connecting piece is movably arranged around the acid adding channel, when the external concentrated sulfuric acid pipeline is required to add acid to the autoclave, the first connecting piece and the concentrated sulfuric acid pipeline are detachably connected, so that the external concentrated sulfuric acid pipeline can be fixed, the acid adding process is facilitated, and the movable arrangement is also favorable for removing the connection with the concentrated sulfuric acid pipeline when the external concentrated sulfuric acid pipeline is not required; the second connecting piece is movably arranged around the acid adding channel, when the high-pressure kettle needs to be added with acid, the second connecting piece is detachably connected with the mouth of the high-pressure kettle, the acid adding device can be fixed, the acid adding process is convenient to go forward, and the movable arrangement is also beneficial to removing the connection with the mouth of the high-pressure kettle when the high-pressure kettle does not need to be added with acid; the second sealing member welds in acidification passageway outer wall, accessible second sealing member is confirmed to add the acid device and is stretched into the length in the autoclave on the one hand, adopt the welded mode to avoid rocking and lead to the not hard up problem of second sealing member to appear because of adding the acid passageway on the one hand, and then can avoid the problem of sealed inefficacy, reduce the potential safety hazard, and can realize sealedly through the second sealing member, separate autoclave inner space and outside space, reduce the influence of external environment to material and reaction in the autoclave, also avoid the appearance of leakage problem. Therefore, the acid adding device is simple in structure, and the acid adding device is favorable for improving the sealing performance and the connection stability between the acid adding device and the pipe orifice of the external concentrated sulfuric acid pipeline and the high-pressure kettle, so that the potential safety hazard of production is reduced, the system shutdown frequency is reduced, the economic loss is reduced, and meanwhile, the acid adding device is convenient to disassemble and maintain.
According to an embodiment of the present invention, referring to fig. 2, the acid adding apparatus further includes: a limiting member 600.
According to the embodiment of the present invention, the limiting member 600 is welded to the outer wall of the acid adding passage 100 and located between the first connecting member 300 and the second connecting member 400, and is adapted to limit the moving range of the first connecting member and separate the first connecting member from the second connecting member. The inventor finds that the moving distance of the first connecting piece can be limited by arranging the limiting piece between the first connecting piece and the second connecting piece, meanwhile, the first connecting piece and the second connecting piece can be prevented from colliding, the abrasion of the first connecting piece and the second connecting piece is further reduced, and the connecting strength of the limiting piece and the acid adding channel is favorably improved by adopting a welding mode. It should be noted that the material of the limiting element is not particularly limited, and those skilled in the art can select the limiting element according to actual needs, for example, the limiting element may be a special material, such as a special material similar to the acid adding channel. The inventor finds that the welding process performance between the limiting piece and the acid adding channel is favorably met by keeping the material of the limiting piece and the material of the acid adding channel consistent. Further, the distance between the limiting member 600 and the first sealing member 200 is not particularly limited, and may be selected by a person skilled in the art according to actual needs, for example, the distance between the limiting member and the first sealing member may account for 35 to 55% of the distance between the second sealing member and the first sealing member. The inventor finds that the distance between the limiting part and the first sealing element is between the first connecting part and the second connecting part, the net distance between the limiting part and the first connecting part or the second connecting part can keep a clearance of 10mm, and the abrasion caused by frequent contact between the first connecting part or the second connecting part and the limiting part is avoided.
According to an embodiment of the present invention, referring to fig. 3, the acid adding apparatus further includes: a support member 700.
According to the embodiment of the present invention, the supporting member 700 is disposed around the outer wall of the acid adding passage 100, one end of the supporting member 700 is connected to the second sealing member 500 and is away from the second connecting member 400, and at least a portion of the supporting member 700 is connected to the outer wall of the acid adding passage 100 and is adapted to stabilize the acid adding passage and reduce the shaking of the acid adding apparatus. The inventor finds that, because the second sealing element is welded on the outer wall of the acid adding channel, the fixing effect of the supporting element on the acid adding channel is enhanced and the second sealing component can be firmly supported by connecting one end of the supporting element with the second sealing element. It should be noted that the connection manner of the supporting member and the second sealing member and the connection manner of the supporting member and the acid adding channel are not particularly limited, and those skilled in the art can select them according to the actual requirement, for example, one end of the supporting member can be welded to the second sealing member, and at least a portion of the supporting member can be welded to the outer wall of the acid adding channel. Therefore, the connection stability of the supporting piece and the second sealing piece and the connection stability of the supporting piece and the acid adding channel are improved, the stabilizing effect of the supporting piece on the acid adding channel is further improved, and the second sealing assembly is firmly supported. Further, the material of the supporting member is not particularly limited, and those skilled in the art can select the material according to actual needs, for example, the material may be a special material, such as a special material similar to the acid adding channel. The inventor finds that the material of the supporting piece is consistent with the material of the acid adding channel, the welding process performance between the supporting piece and the acid adding channel is favorably met, and the supporting piece is made of special materials, so that intercrystalline corrosion can be effectively prevented, and the service life of the supporting piece is favorably prolonged.
According to an embodiment of the present invention, the specific type of the supporting member is not particularly limited, and may be selected by those skilled in the art according to actual needs, for example, referring to fig. 3, the supporting member 700 includes: a support portion 710 and a reinforcement portion 720. According to an embodiment of the present invention, the supporting portion 710 is disposed around the acid adding passage 100, one end of the supporting portion 710 is connected to the second sealing member 500 and is away from the second connecting member 400, and at least a portion of the supporting portion 710 is connected to an outer wall of the acid adding passage 100 and is adapted to stabilize the acid adding passage. The inventor finds that, because the second sealing element is welded on the outer wall of the acid adding channel, the fixing effect of the supporting part on the acid adding channel is enhanced and the second sealing component can be firmly supported by connecting one end of the supporting part with the second sealing element. It should be noted that the specific type of the supporting portion is not particularly limited, and those skilled in the art can select the supporting portion according to actual needs, for example, the supporting portion is a cross-shaped supporting portion, specifically, the cross-shaped supporting portion is composed of 4 components with the same shape and structure, and after the installation is completed, a gap is formed between the cross-shaped supporting portion and the acid adding passage, so that when the cross-shaped supporting portion is connected with the acid adding passage and the second sealing member by welding, the welding seam between the supporting portion and the acid adding passage and the second sealing member is favorably reduced, and when the reinforcing portion is also connected with the supporting portion by welding, the cross-shaped supporting portion is favorable for reducing the welding seam between the supporting portion and the reinforcing portion, further favorable for the welding seam stress of the acid adding device, and further prolonging the service life of the acid adding. According to another embodiment of the present invention, the reinforcement portion 720 is disposed around the support portion 710 and connected to at least a portion of the support portion 720, and is adapted to further stabilize the acid adding channel. The inventor finds that the reinforcing part is arranged outside the supporting part, so that the stabilizing effect of the whole supporting part on the acid adding channel is favorably improved, the service life of the acid adding device is further prolonged, and the second sealing assembly can be firmly supported. It should be noted that the specific shape of the reinforcement is not particularly limited, and those skilled in the art can select the reinforcement according to the specific shape of the support. Further, the connection mode between the reinforcing portion and the supporting portion is not particularly limited, and those skilled in the art can select the connection mode according to actual needs as long as the connection mode can enhance the stabilizing effect of the supporting portion on the acid adding channel and firmly support the second sealing assembly, for example, the reinforcing portion and the supporting portion can be connected by welding. From this, be favorable to improving the joint strength between reinforcement and the supporting part, avoid the reinforcement not hard up in the acidification device use.
In a further aspect of the invention, the invention proposes an autoclave, according to an embodiment of the invention, with reference to fig. 4, comprising: the cauldron body 800, add sour device and mounting 900.
According to the embodiment of the invention, the kettle body 800 is provided with the autoclave pipe orifice 801, and is suitable for fixing the acid adding device and facilitating the acid adding device to enter and exit the kettle body. The specific shape, material, structure, etc. of the kettle body are not particularly limited, and those skilled in the art can select the shape, material, structure, etc. according to actual needs. And the shape and the structure of the mouth of the high-pressure kettle are not particularly limited, so long as the high-pressure kettle is matched with the acid adding device, the acid adding device is fixed, and the high-pressure kettle is sealed by matching with the acid adding device.
According to an embodiment of the present invention, the acid adding device is the above-mentioned acid adding device, the second sealing member 500 is stopped against the mouth 801 of the autoclave to seal the autoclave, and the second connecting member 400 is connected with the mouth 801 of the autoclave and is adapted to add acid to the autoclave. The inventor finds that the high-pressure kettle adopts the acid adding device, the acid adding device is simple in structure, and the acid adding device is favorable for improving the sealing performance and the connection stability between the acid adding device and the pipe orifice of the high-pressure kettle as well as between the external concentrated sulfuric acid pipeline and the high-pressure kettle, so that the potential safety hazard of production is reduced, the system shutdown frequency is reduced, the economic loss is reduced, meanwhile, the acid adding device is convenient to disassemble and maintain, and the cost of the acid adding device for the high-pressure kettle is reduced. It should be noted that the features and advantages of the acid adding device described above are also applicable to the autoclave, and are not described in detail.
According to the embodiment of the invention, one end of the fixing member 900 is connected with the inner wall of the kettle body 800, and the other end of the fixing member 900 is detachably connected with the outer wall of the acid adding channel 100 of the acid adding device, and is suitable for fixing the acid adding device, so that the shaking of the acid adding device is reduced, the fatigue damage of the acid adding device is further reduced, and the service life of the acid adding device is prolonged. The inventor finds that the high-pressure kettle is provided with the acid adding device, the acid adding device is favorable for improving the sealing performance and the connection stability between the acid adding device and an external concentrated sulfuric acid pipeline and a high-pressure kettle pipe orifice, further, the production potential safety hazard of the high-pressure kettle is reduced, the system shutdown frequency is reduced, the economic loss is reduced, meanwhile, the acid adding device is simple in structure and convenient to maintain, the fixing piece is arranged in the high-pressure kettle to fix the acid adding device, the shaking amplitude of the acid adding device in the production process is favorably reduced, the fatigue damage to the acid adding device caused by the pulp disturbance in the high-pressure kettle is reduced, and the service life of the acid adding device is prolonged; furthermore, the fixing piece and the acid adding device are detachably connected, so that the acid adding device is convenient to detach and maintain. It should be noted that the number of the solid fixing members is not particularly limited, and those skilled in the art can select the solid fixing members according to actual needs, for example, the solid fixing members may be determined according to the length of the acid adding passage extending into the autoclave body, and for example, a plurality of fixing members may be included.
According to an embodiment of the present invention, the fixing member 900 includes: a first mount 910 and a second mount 920. According to an embodiment of the present invention, the first fixing member 910 has a covering portion 911, the covering portion 911 is detachably connected to the acidification passage 100, and at least a portion of the covering portion 911 covers the acidification passage 100 and is adapted to fix the acidification device. The inventor finds that by fixing the acid adding channel in a wrapping manner, on one hand, the fixation of the acid adding channel is facilitated, and on the other hand, excessive pressure on the acid adding channel can be avoided. It should be noted that the specific type and material of the first fixing member are not particularly limited, and those skilled in the art may select the first fixing member according to actual needs, for example, the first fixing member may be at least one selected from a hoop and a collet. Specifically, taking the hoop as an example, the hoop can be fastened on the outer wall of the acid adding channel through bolt connection. The first fixing piece can be made of titanium, so that corrosion of acid ore slurry in a high-temperature and high-pressure environment can be effectively prevented.
According to a specific example of the present invention, the distance from the longitudinal axis of the wrapping portion 911 to the end of the acid adding channel 100 far from the first seal member 200 in the horizontal direction is not particularly limited, and can be selected by those skilled in the art according to actual needs, for example, not less than 300 and 400mm, such as not less than 300mm, 320mm, 340mm, 360mm, 380mm, and 400 mm. The inventor finds that the distance from the longitudinal axis of the wrapping part to the end part of the acid adding channel far away from the first sealing element is too small, so that the potential safety hazard that the acid adding channel falls off from the wrapping part and the potential corrosion hazard that concentrated sulfuric acid is in direct contact with the wrapping part exist; the distance from the longitudinal axis of the wrapping part to the end part of the acid adding channel far away from the first sealing element is too large, so that the acid adding channel is in a state that the acid adding channel is not further stabilized due to too long section, the acid adding channel can shake along with the disturbance of ore pulp, the fatigue damage is further generated, and the service life of the acid adding channel is shortened. Further, when a plurality of fixing members 900 are included, the distance between the longitudinal axes connecting the two wrapping portions 911 in the horizontal direction is not particularly limited, and can be selected by those skilled in the art according to actual needs, for example, 400mm and 800mm, such as 400mm, 500mm, 600mm, 700mm and 800 mm. The inventor finds that the distance between the longitudinal axes of the two connected wrapping parts is not suitable to be too large, and the too large distance can cause the acid adding channel between the two connected wrapping parts to be too long, so that the acid adding channel shakes due to ore pulp disturbance, fatigue damage is generated, and the service life of the acid adding channel is shortened.
According to another embodiment of the present invention, the second fixing member 920 is disposed at both sides of the acidification channel 100, and one end of the second fixing member 920 is connected to the inner wall of the kettle body 800, and the other end of the second fixing member 920 is connected to the end of the first fixing member 910, and is adapted to further fix the acidification channel. The inventor finds that the acid adding channel can be stably fixed by the second fixing piece and the first fixing piece due to the fact that one end of the second fixing piece is connected with the inner wall of the kettle body and the other end of the second fixing piece is connected with the end portion of the first fixing piece, the acid adding channel cannot shake along with disturbance of fluid media in the high-pressure kettle, fatigue damage of the acid adding device can be reduced, and meanwhile the problem of leakage caused by shaking of the acid adding channel can be avoided.
According to a specific example of the present invention, the connection manner of the second fixing element with the inner wall of the kettle body and the first fixing element is not particularly limited, and a person skilled in the art may select the connection manner according to actual needs, for example, one end of the second fixing element may be welded on the inner wall of the kettle body, and the end of the second fixing element and the end of the first fixing element may be connected by welding. Furthermore, the material of the second fixing element is not particularly limited, and for example, the second fixing element may be titanium, which can effectively prevent the corrosion of the acid ore slurry in the high-temperature and high-pressure environment. Further, when a plurality of fixing members are included, two adjacent second fixing members on the same side of the acid adding passage may be connected. From this, can make the second mounting more firm, and then improve the firm effect of second mounting to first mounting, and then improve the firm effect of mounting to the acidification passageway for the acidification passageway can not rock along with the disturbance of fluid medium in the autoclave, and then can reduce acidification device's fatigue damage, also can avoid the acidification passageway to rock the leakage problem that probably brings simultaneously. Further, the specific type of the second fixing member is not particularly limited, and those skilled in the art can select the second fixing member according to actual needs, such as a bracket. Furthermore, the arrangement mode of the second fixing pieces on the two sides of the acid adding channel is not particularly limited, and the technical personnel in the field can select the second fixing pieces according to actual needs, for example, the second fixing pieces can be symmetrically arranged on the two sides of the acid adding channel, so that the two ends of the first fixing pieces are stressed consistently, and the improvement of the stable strength of the fixing pieces on the acid adding channel is facilitated.
According to the high-pressure kettle provided by the embodiment of the invention, the acid adding device is adopted, the acid adding device is favorable for improving the sealing performance and the connection stability between the acid adding device and an external concentrated sulfuric acid pipeline as well as between the acid adding device and the orifice of the high-pressure kettle, the production potential safety hazard of the high-pressure kettle is further favorably reduced, the system shutdown frequency is reduced, the economic loss is reduced, meanwhile, the acid adding device is simple in structure and convenient to maintain, the fixing piece is arranged in the high-pressure kettle to fix the acid adding device, the shaking amplitude of the acid adding device in the production process is favorably reduced, the fatigue damage to the acid adding device caused by the pulp disturbance in the high-pressure kettle is reduced, and the; furthermore, the fixing piece and the acid adding device are detachably connected, so that the acid adding device is convenient to detach and maintain. Therefore, the autoclave adopts the acid adding device and the acid adding device fixing mode to realize continuous, stable, quick and safe acid adding operation of the autoclave pressure leaching process, the acid adding device is simple in structure and convenient to disassemble and maintain, meanwhile, the service life of the acid adding device is more than 5 times that of the conventional acid adding device, only the acid adding device of the autoclave saves spare part cost for an enterprise every year and reaches more than 1000 RMB (the cost of yield loss caused by system shutdown is not included), and the production and operation cost of the enterprise is remarkably reduced.
The invention will now be described with reference to specific examples, which are intended to be illustrative only and not to be limiting in any way.
Examples
In a nonferrous metallurgy project, laterite smelting adopts an autoclave as shown in figure 4 to carry out a pressure leaching process, and the autoclave comprises:
the kettle body 800, the kettle body 800 is provided with a high-pressure kettle pipe orifice 801;
an acid addition device comprising:
the acid adding channel 100 is a pipeline with the diameter of DN100, the length of 2000mm and the material of special material, and the acid adding channel 100 is a pipeline made of special material;
the first sealing element 200 is a flange bushing ring, the material of the first sealing element 200 is a special material, the first sealing element 200 is welded on the outer wall of one end of the acid adding channel 100, and the first sealing element is suitable for stopping and sealing a concentrated sulfuric acid pipeline; (ii) a
The first connecting piece 300 is a flange, the first connecting piece 300 is movably arranged around the acid adding channel 100 and is positioned at one side of the first sealing element 200, and the first connecting piece 300 is suitable for fixing a concentrated sulfuric acid pipeline;
the second connecting piece 400 is a flange, the second connecting piece 400 is movably arranged around the acid adding channel 100, is positioned on one side of the first connecting piece 300 far away from the first sealing piece 200, and is connected with the mouth 801 of the autoclave;
the second sealing element 500, the first sealing element 500 is a flange backing ring, the material is a special material, the second sealing element 500 is welded on the outer wall of the acid adding channel 100 and is positioned on one side of the second connecting element 400 far away from the first connecting element 300, and abuts against and seals the autoclave pipe orifice 801, and the distance from the second sealing element 500 to the first sealing element 200 is 300 mm;
the limiting piece 600 is made of a special material, the limiting piece 600 is welded on the outer wall of the acidification channel 100 and is positioned between the first connecting piece 300 and the second connecting piece 400, the limiting piece 600 is made of a special material, and the distance from the limiting piece 600 to the first sealing piece 200 is 110 mm;
the fixing member 900 includes:
the first fixing piece 910 is a hoop, the first fixing piece 910 is made of titanium, the first fixing piece 910 is provided with a wrapping portion 911, the wrapping portion 911 is detachably connected with the acidification channel 100, at least one part of the wrapping portion 911 wraps the acidification channel 100, the distance from the longitudinal axis of the wrapping portion 911 to the end, far away from the acidification channel 100, of the first sealing element 200 is 300mm in the horizontal direction, the first fixing piece 910 comprises two first fixing pieces 910, and the distance between the longitudinal axes of the two wrapping portions 910 connected is 450 mm;
second mounting 920, second mounting 920 are the bracket, and the material is titanium, and second mounting 920 symmetry sets up in the 100 both sides of acidification passageway, and the one end welding of second mounting 920 is on the cauldron body 800 inner wall, and the other end passes through the welding with the tip of first mounting 910 and links to each other, including two pairs of second mounting 920, and links to each other at two adjacent second mountings 920 that add acidification passageway 100 homonymies.
The medium in the high-pressure kettle is ore pulp with the concentration of 25-32 wt%, the working temperature of about 255 ℃, the working pressure of about 5.5MPa, the medium in the acid adding channel is 98 wt% concentrated sulfuric acid, the specific gravity of 1.83, the working pressure in the acid adding channel is 5.5MPa, and the working temperature is 255 ℃. By adopting the high-pressure kettle and the acid adding device, continuous, stable and quick acid adding operation of the high-pressure kettle can be realized, the service life of the acid adding device is long, the service life of the acid adding device is more than 5 times that of the existing acid adding device, long-period safe operation of equipment is ensured, the project operation cost is reduced, the design is completed to reach the production standard, only the acid adding device saves spare part cost for enterprises every year and reaches more than 1000 million RMB, and the effect is remarkable.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An acid adding device, comprising:
an acid addition channel;
the first sealing element is welded on the outer wall of one end part of the acid adding channel and is suitable for stopping and sealing the concentrated sulfuric acid pipeline;
the first connecting piece is movably arranged around the acid adding channel, is positioned on one side of the first sealing piece and is suitable for fixing a concentrated sulfuric acid pipeline;
the second connecting piece is movably arranged around the acid adding channel, is positioned on one side of the first connecting piece away from the first sealing piece, and is suitable for being connected with a pipe orifice of the autoclave;
and the second sealing element is welded on the outer wall of the acid adding channel, is positioned on one side of the second connecting element far away from the first connecting element, and is suitable for stopping and sealing the mouth of the high-pressure kettle.
2. The acid adding apparatus according to claim 1, further comprising:
the limiting piece is welded on the outer wall of the acid adding channel and is positioned between the first connecting piece and the second connecting piece;
optionally, the limiting piece is made of a special material;
optionally, the distance from the stopper to the first sealing member is 35-55% of the distance from the second sealing member to the first sealing member.
3. The acid adding apparatus according to claim 1 or 2, characterized by further comprising:
the supporting piece is arranged around the outer wall of the acid adding channel, one end of the supporting piece is connected with the second sealing piece and is far away from the second connecting piece, and at least one part of the supporting piece is connected with the outer wall of the acid adding channel;
optionally, one end of the support member is welded to the second sealing member, and at least a portion of the support member is welded to the outer wall of the acidification channel.
4. The acid adding apparatus according to claim 3, wherein the support member comprises:
the supporting part is arranged around the acid adding channel, one end of the supporting part is connected with the second sealing part and is far away from the second connecting part, and at least one part of the supporting part is connected with the outer wall of the acid adding channel;
a reinforcement portion disposed around the support portion and connected to at least a portion of the support portion.
5. The acid adding device according to claim 4, wherein the reinforcing part is connected with the supporting part in a welding manner;
optionally, the support is a cross-shaped support.
6. The acid adding device of claim 5, wherein the acid adding channel, the first sealing element, the second sealing element, the supporting part and the reinforcing part are all made of special materials;
optionally, the acid addition channel is a pipe;
optionally, the first connector and the second connector are both flanges;
optionally, the first seal and the second seal are both flange backing rings;
optionally, the distance from the second sealing element to the first sealing element accounts for 10-15% of the length of the acid adding channel.
7. An autoclave, comprising:
the kettle body is provided with a high-pressure kettle pipe orifice;
an acid adding device as claimed in any one of claims 1 to 6, wherein the second sealing member abuts against the mouth of the autoclave so as to seal the autoclave, and the second connecting member is connected with the mouth of the autoclave;
the fixing piece, the one end of fixing piece with the internal wall of cauldron links to each other, the other end of fixing piece with add sour device add sour passageway outer wall detachably and connect.
8. The autoclave of claim 7, wherein the fixture comprises:
the first fixing piece is provided with a wrapping part, the wrapping part is detachably connected with the acid adding channel, and at least one part of the wrapping part wraps the acid adding channel;
the second fixing piece is arranged on two sides of the acid adding channel, one end of the second fixing piece is connected with the inner wall of the kettle body, and the other end of the second fixing piece is connected with the end portion of the first fixing piece.
9. The autoclave of claim 8, wherein one end of the second fixing piece is welded on the inner wall of the autoclave body, and the second fixing piece is connected with the end of the first fixing piece in a welding manner;
optionally, the second fixing pieces are symmetrically arranged at two sides of the acid adding channel;
optionally, in the horizontal direction, the distance from the longitudinal axis of the wrapping part to the end of the acid adding channel far away from the first sealing part is not less than 300-400 mm;
optionally, the first fixing piece is selected from at least one of a hoop and a collet;
optionally, the first fixing piece and the second fixing piece are made of titanium.
10. The autoclave of claim 8, comprising a plurality of the fasteners;
optionally, the distance between the longitudinal axes of the two wrapping parts is 400mm and 800mm in the horizontal direction;
optionally, two adjacent second fixing pieces on the same side of the acid adding channel are connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030661.8A CN110656238A (en) | 2019-10-28 | 2019-10-28 | Acid adding device and high-pressure kettle with same |
| PH12020050431A PH12020050431A1 (en) | 2019-10-28 | 2020-10-26 | Acid adding device and autoclave including the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030661.8A CN110656238A (en) | 2019-10-28 | 2019-10-28 | Acid adding device and high-pressure kettle with same |
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| CN110656238A true CN110656238A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911030661.8A Pending CN110656238A (en) | 2019-10-28 | 2019-10-28 | Acid adding device and high-pressure kettle with same |
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Cited By (1)
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