CN113244855A - Flash tank and smelting pressurization system - Google Patents
Flash tank and smelting pressurization system Download PDFInfo
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- CN113244855A CN113244855A CN202110683201.6A CN202110683201A CN113244855A CN 113244855 A CN113244855 A CN 113244855A CN 202110683201 A CN202110683201 A CN 202110683201A CN 113244855 A CN113244855 A CN 113244855A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
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Abstract
The invention discloses a flash tank and a smelting pressurization system, which comprise a tank body, a valve pipe, a spray head, a regulating valve and an anti-impact assembly, wherein an inner cavity is arranged in the tank body, a vent, a discharge port and an exhaust port are arranged on the wall of the tank body, the vent is arranged at the bottom of the tank body, the discharge port is arranged on the side wall of the tank body, the exhaust port is arranged at the top of the tank body, the valve pipe penetrates through the wall of the tank body and is sealed with the wall of the tank, the first end of the valve pipe is positioned outside the tank body, the second end of the valve pipe is positioned in the inner cavity, the spray head is detachably arranged at the second end of the valve pipe, the spray head is used for spraying materials into the inner cavity, the regulating valve is arranged at the first end of the valve pipe, the regulating valve is used for regulating the flow of the materials in the valve pipe, the anti-impact assembly is arranged in the inner cavity and is positioned at the bottom of the tank body, and the anti-impact assembly is positioned below the spray head. The flash evaporation tank ensures the continuity of the operation of the smelting pressurizing system and avoids the alternating load fatigue damage of the pressurizing kettle.
Description
Technical Field
The invention relates to the technical field of non-ferrous metal smelting, in particular to a flash tank and a smelting pressurization system with the flash tank.
Background
The core equipment of the pressurizing system for non-ferrous metal smelting is a pressurizing kettle, high-temperature and high-pressure reactions such as valuable metal oxidation leaching reaction, iron removal reaction and the like need to be carried out in the pressurizing kettle, and the subsequent reaction of materials discharged from the pressurizing kettle is a normal-pressure reaction. In order to realize the transition of the material from the high-temperature high-pressure environment to the normal-pressure environment, the mode of reducing the pressure and the temperature of the material at the outlet of the autoclave or the mode of arranging a pressure-reducing and temperature-reducing valve at the discharge end of the autoclave is generally adopted in the related technology.
However, the operation of the pressurizing system is an intermittent operation due to the way of reducing the pressure and the temperature, and the cycle of raising the temperature and the pressure of the pressurizing kettle again after reducing the pressure and the temperature is long, which affects the continuity of the smelting process. Secondly, frequent pressure reduction and temperature reduction and pressure rise can cause alternating load fatigue damage to the autoclave, and the problem of blockage at the outlet of the autoclave is easy to occur.
The mode that sets up decompression temperature-reducing valve then has the poor problem of adaptability on the one hand, and decompression temperature-reducing valve damages easily under material impact and corruption, and on the other hand needs to spout into cooling water in the decompression temperature-reducing process, and the cooling water can mix in the material and cause the material volume expansion, and then causes follow-up treatment facility's specification great.
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 embodiment of the invention provides the flash tank, which ensures the continuity of the operation of a smelting pressurization system, avoids the alternating load fatigue damage of a pressurization kettle and avoids the problem of volume expansion of materials caused by the mixing of cooling water.
The embodiment of the invention also provides a smelting pressurization system applying the flash tank.
A flash drum according to an embodiment of the invention comprises: the device comprises a tank body, wherein an inner cavity is arranged in the tank body, a vent, a discharge port and an exhaust port are arranged on the tank wall of the tank body, the vent is arranged at the bottom of the tank body, the discharge port is arranged on the side wall of the tank body, and the exhaust port is arranged at the top of the tank body; the valve pipe is arranged at the top of the groove body, penetrates through the groove wall of the groove body and is sealed with the groove wall, the first end of the valve pipe is positioned outside the groove body and is suitable for being communicated with the pressurized kettle, and the second end of the valve pipe is positioned in the inner cavity; the spray head is detachably arranged at the second end of the valve pipe and is used for spraying materials into the inner cavity; the regulating valve is arranged at the first end of the valve pipe and is used for regulating the flow of materials in the valve pipe; the scour protection subassembly, the scour protection subassembly is established the inner chamber is located the bottom of cell body, just the scour protection subassembly is located the shower nozzle below, the scour protection subassembly is used for resisting the follow the impact of shower nozzle spun material.
According to the flash tank provided by the embodiment of the invention, the operation continuity of the smelting pressurization system is ensured, the alternating load fatigue damage of the pressurization kettle is avoided, and the problem of volume expansion of materials caused by the mixing of cooling water is also avoided.
In some embodiments, the tank wall comprises a first acid-proof brick layer, a second acid-proof brick layer, a non-metal isolation layer and a metal shell which are sequentially arranged from inside to outside, the first acid-proof brick layer and the second acid-proof brick layer are both formed by acid-proof bricks and acid-proof cement in a laying mode, and the acid-proof bricks of the first acid-proof brick layer and the acid-proof bricks of the second acid-proof brick layer are arranged in a staggered mode.
In some embodiments, an acid-resistant mastic layer is disposed between the second acid-resistant brick layer and the non-metallic insulation layer.
In some embodiments, the scour protection subassembly includes ceramic plate and tray base, the top of tray base is equipped with the mounting groove, at least part the ceramic plate imbeds in the mounting groove and with tray base is fixed continuous, tray base's bottom with the bottom of cell body links to each other.
In some embodiments, the impingement assembly further comprises a gasket, the ceramic plate having an annular flange on an outer peripheral side thereof, the gasket being clamped between the annular flange and an upper end surface of the tray base.
In some embodiments, the ceramic plate is fixed in the mounting groove by gluing with cement, and the ceramic plate and the tray base are fixedly connected through a connecting piece.
In some embodiments, the tray base comprises a plurality of supporting legs, the bottom ends of the supporting legs are provided with arc-shaped plates, the groove wall comprises a first acid-resistant brick layer and a second acid-resistant brick layer which are sequentially arranged from inside to outside, and the arc-shaped plates are pre-embedded between the first acid-resistant brick layer and the second acid-resistant brick layer.
In some embodiments, the slot wall at the bottom of the slot body is arc-shaped, and the radian of the arc-shaped plate is consistent with that of the slot wall.
In some embodiments, a manhole is further arranged on the tank wall, an annular support is further arranged on the outer peripheral side of the tank wall, the annular support is arranged on the outer peripheral side of the tank body and extends along the circumferential direction of the tank body, and the annular support is located below the discharge port and the manhole.
The smelting pressurization system comprises a pressurization kettle and a flash tank, wherein the flash tank is the flash tank of any one embodiment, and the pressurization kettle is communicated with a valve pipe of the flash tank.
In some embodiments, the smelting pressurization system further comprises a connecting pipe, the connecting pipe is arranged at the top of the autoclave, a first end of the connecting pipe penetrates through the wall of the autoclave and extends into the autoclave, the connecting pipe is connected with the wall in a sealing manner, and a second end of the connecting pipe is communicated with the first end of the valve pipe.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of a flash drum according to an embodiment of the present invention.
Fig. 2 is a schematic view of the structure of the slot wall of fig. 1.
Figure 3 is a schematic view of the impingement assembly of figure 1.
FIG. 4 is a schematic view of a metallurgical pressurization system according to an embodiment of the invention.
Reference numerals:
a flash tank 100;
a tank body 1; a vent 11; a discharge port 12; an exhaust port 13; a manhole 14; an annular support 15; a first acid-resistant brick layer 101; a second acid-resistant brick layer 102; a non-metal isolation layer 103; a metal housing 104; an acid resistant mastic layer 105; acid-resistant bricks 106; acid-resistant daub 107;
a valve tube 2;
a spray head 3;
a regulating valve 4;
an impingement assembly 5; a ceramic plate 51; an annular flange 511; a tray base 52; a support plate 521; a support base 522; a support leg 523; a gasket 53; a mastic 54; a connecting member 55; an arcuate plate 56;
a pressure vessel 200;
a connection pipe 300.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. 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.
As shown in fig. 1 to 3, a flash drum 100 according to an embodiment of the present invention includes a tank body 1, a valve pipe 2, a spray head 3, a regulating valve 4, and an anti-collision assembly 5.
An inner cavity is arranged in the tank body 1, a vent 11, a discharge port 12 and an exhaust port 13 are arranged on the tank wall of the tank body 1, the vent 11 is arranged at the bottom of the tank body 1, the discharge port 12 is arranged on the side wall of the tank body 1, and the exhaust port 13 is arranged at the top of the tank body 1. Specifically, as shown in fig. 1, the tank body 1 is a tank, the tank body 1 extends in the up-down direction, an inner cavity is arranged in the tank body 1, and the tank body 1 is provided with a vent 11, a discharge port 12 and an exhaust port 13 which are communicated with the inner cavity, wherein the vent 11 is arranged at the bottom of the tank body 1, the discharge port 12 is arranged on the side wall of the tank body 1, and the exhaust port 13 is arranged at the top of the tank body 1. The sediment in the tank body 1 can be discharged through the vent 11, the liquid material in the tank body 1 can be discharged through the discharge hole 12, and the saturated steam in the tank body 1 can be discharged through the exhaust hole 13.
The valve pipe 2 is arranged at the top of the tank body 1, the valve pipe 2 penetrates through the tank wall of the tank body 1 and is sealed with the tank wall, the first end of the valve pipe 2 is positioned outside the tank body 1, the first end of the valve pipe 2 is suitable for being communicated with the autoclave 200, and the second end of the valve pipe 2 is positioned in the inner cavity. Specifically, as shown in fig. 1, the valve tube 2 is arranged at the top of the tank body 1, and the valve tube 2 extends along the vertical direction, wherein the first end of the valve tube 2 is the top end of the valve tube 2, the second end of the valve tube 2 is the bottom end of the valve tube 2, the valve tube 2 passes through the tank wall at the top of the tank body 1 in a sealing manner, the top end of the valve tube 2 is located at the outer side of the tank body 1, and the bottom end of the valve tube 2 is located in the inner cavity of the tank body 1. The top end of the valve pipe 2 is used for communicating with the autoclave 200, and the high-pressure saturated liquid in the autoclave 200 can be guided into the inner cavity of the tank body 1 through the valve pipe 2.
The spray head 3 is detachably arranged at the second end of the valve pipe 2, and the spray head 3 is used for spraying materials into the inner cavity. As shown in fig. 1, the spray head 3 is detachably mounted to the bottom end of the valve pipe 2, and for example, the spray head 3 may be screw-fitted to the valve pipe 2. The high-pressure saturated liquid in the valve tube 2 can be ejected through the ejection head 3.
The regulating valve 4 is arranged at the first end of the valve pipe 2, and the regulating valve 4 is used for regulating the flow of the material in the valve pipe 2 of the regulating valve 4. As shown in figure 1, the regulating valve 4 is arranged at the top end of the valve pipe 2, the regulating valve 4 can be connected with the top end of the valve pipe 2 through a flange, and the opening degree of the regulating valve 4 can be adjusted, so that the flow of liquid materials in the valve pipe 2 of the regulating valve 4 can be adjusted.
Scour protection subassembly 5 establishes the intracavity and is located the bottom of cell body 1, and scour protection subassembly 5 is located 3 below of shower nozzle, and scour protection subassembly 5 is used for resisting the impact from 3 spun materials of shower nozzle. As shown in fig. 1, scour protection subassembly 5 is established in the inner chamber of cell body 1, specifically establishes on the cell wall of cell body 1 bottom, and scour protection subassembly 5 is located shower nozzle 3 under, from this, can direct impact effect on scour protection subassembly 5 from 3 spun liquid material of shower nozzle to the condition of liquid material direct impact cell body 1 bottom has been avoided.
According to the flash evaporation tank 100 provided by the embodiment of the invention, when the flash evaporation tank 100 is used, the high-pressure saturated liquid in the autoclave 200 can be directly discharged into the flash evaporation tank 100 by connecting the flash evaporation tank 100 with the autoclave 200, so that the condition that the pressure in the autoclave 200 needs to be reduced and cooled in the related art is avoided, the continuity of the operation of a smelting pressurization system is ensured, and the condition that the autoclave 200 is easily subjected to alternating load fatigue damage due to frequent pressure reduction and temperature increase is also avoided.
In addition, because the pressure reducing and temperature reducing valve is not arranged, the condition that the volume of the material is expanded and increased due to the fact that cooling water needs to be sprayed in the process of using the pressure reducing and temperature reducing valve is avoided, and the specification size of subsequent processing equipment is reduced.
In some embodiments, the trough wall comprises a first acid-proof brick layer 101, a second acid-proof brick layer 102, a non-metal isolation layer 103 and a metal shell 104 which are sequentially arranged from inside to outside, the first acid-proof brick layer 101 and the second acid-proof brick layer 102 are all formed by laying acid-proof bricks 106 and acid-proof daub 107, and the acid-proof bricks 106 of the first acid-proof brick layer 101 and the acid-proof bricks 106 of the second acid-proof brick layer 102 are arranged in a staggered manner.
Specifically, as shown in fig. 2, the tank wall of the tank body 1 includes a first acid-resistant brick layer 101, a second acid-resistant brick layer 102, a non-metal isolation layer 103 and a metal casing 104, and the first acid-resistant brick layer 101, the second acid-resistant brick layer 102, the non-metal isolation layer 103 and the metal casing 104 are sequentially arranged along a direction from the inner side of the tank body 1 to the outer side (from left to right) of the tank body 1. The non-metal isolation layer 103 may be made of asbestos, and the metal housing 104 may be made of steel. First acid-resistant brick layer 101 and second acid-resistant brick layer 102 are the brick wall of tiling in cell body 1 inboard, and first acid-resistant brick layer 101 and second acid-resistant brick layer 102 are tiled on the internal perisporium, interior roof, the interior diapire of cell body 1, and first acid-resistant brick layer 101 and second acid-resistant brick layer 102 are piled up by acid-resistant brick 106 and acid-resistant daub 107 and are formed. The design of the first acid-resistant brick layer 101, the second acid-resistant brick layer 102, the non-metal isolation layer 103 and the metal shell 104 has better high temperature resistance, impact resistance, corrosion resistance and heat insulation performance, and meets the requirements of high flow rate, large impact and strong corrosivity of the material sprayed by the spray head 3.
It should be noted that, as shown in fig. 2, each acid-resistant brick 106 of the first acid-resistant brick layer 101 and each acid-resistant brick 106 of the second acid-resistant brick layer 102 are arranged in a staggered manner, that is, a gap between two adjacent acid-resistant bricks 106 of the first acid-resistant brick layer 101 and a gap between two adjacent acid-resistant bricks 106 of the second acid-resistant brick layer 102 are not aligned, so that a labyrinth effect can be formed between the first acid-resistant brick layer 101 and the second acid-resistant brick layer 102, a condition that a brick seam of the first acid-resistant brick layer 101 and a brick seam of the second acid-resistant brick layer 102 are directly connected from inside to outside is avoided, and the impact strength and the corrosion resistance of the first acid-resistant brick layer 101 and the second acid-resistant brick layer 102 are enhanced.
In some embodiments, an acid-resistant mastic layer 105 is disposed between the second acid-resistant brick layer 102 and the non-metallic insulation layer 103. Specifically, as shown in fig. 2, when the second acid-resistant brick layer 102 is built, the acid-resistant daub 107 can be laid on the outer side surface of the second acid-resistant brick layer 102, and the formed acid-resistant daub 105 is located between the second acid-resistant brick layer 102 and the nonmetal isolation layer 103, so that the acid-resistant daub 105 can fix the second acid-resistant brick layer 102 and the nonmetal isolation layer 103 in an adhesion manner, which is beneficial to enhancing the structural strength of the groove wall.
In some embodiments, the anti-impact assembly 5 comprises a ceramic plate 51 and a tray base 52, wherein the tray base 52 is provided with a mounting groove at the top, at least a part of the ceramic plate 51 is embedded in the mounting groove and fixedly connected with the tray base 52, and the bottom of the tray base 52 is connected with the bottom of the tank body 1.
Specifically, as shown in fig. 3, the tray base 52 may be made of stainless steel, the bottom of the tray base 52 is fixedly connected with the inner bottom surface of the tank body 1, the ceramic plate 51 is fixed on the top of the tray base 52, the top of the tray base 52 is provided with a mounting groove, a notch of the mounting groove faces upwards, and a part of the ceramic plate 51 is fitted in the mounting groove. The ceramic plate 51 can be stopped against the inner wall of the installation groove, thereby increasing the restraint of the ceramic plate 51 and ensuring the fixing effect of the ceramic plate 51.
In some embodiments, the impingement assembly 5 further includes a gasket 53, and the ceramic plate 51 is provided at an outer peripheral side thereof with an annular flange 511, and the gasket 53 is clamped and fixed between the annular flange 511 and an upper end face of the tray base 52. Specifically, as shown in fig. 3, the outer peripheral side of the top of the ceramic plate 51 is provided with an annular flange 511, the annular flange 511 extends along the circumferential direction of the ceramic plate 51 and is closed into one turn, the annular flange 511 is located above the tray base 52 after the bottom of the ceramic plate 51 is fitted in the fitting groove, and a washer 53 is clamped and fixed between the annular flange 511 and the upper end face of the tray base 52. The washer 53 is a nonmetal washer 53, and the washer 53 has certain elasticity, so that when the ceramic plate 51 is subjected to a stamping action, the washer 53 can play a certain role in buffering and shock resistance.
In some embodiments, the ceramic plate 51 is fixed in the mounting groove by a paste 54, and the ceramic plate 51 and the tray base 52 are fixed by a connection member 55. Specifically, as shown in fig. 3, the ceramic plate 51 is fixed in the installation groove by means of adhesion, and a layer of plaster 54 for adhering the ceramic plate 51 is applied to both the bottom surface and the side surface of the installation groove. The mastic 54 may have some elasticity so that the cushioning effect may be enhanced.
In order to enhance the fixing effect, a connecting member 55 is further disposed between the ceramic plate 51 and the tray base 52, the connecting member 55 may be a bolt, a screw or a pin, the connecting member 55 penetrates through the tray base 52 and is connected to the ceramic plate 51, specifically, a through hole is disposed on the tray base 52, the through hole penetrates through the outer circumferential wall of the tray base 52 and the inner wall of the mounting groove, and the connecting member 55 is inserted into the through hole and is partially fixedly connected to the ceramic plate 51 embedded in the mounting groove.
Preferably, the through holes in the tray base 52 are threaded holes, and the connectors 55 are threadedly engaged in the threaded holes.
In some embodiments, the tray base 52 includes a plurality of support legs 523, the bottom ends of the support legs 523 are provided with arc-shaped plates 56, the tank wall includes a first acid-proof brick layer 101 and a second acid-proof brick layer 102 which are sequentially arranged from inside to outside, and the arc-shaped plates 56 are pre-embedded between the first acid-proof brick layer 101 and the second acid-proof brick layer 102.
Specifically, as shown in fig. 3, the tray base 52 is provided at the bottom thereof with a plurality of support legs 523, the plurality of support legs 523 are arranged at intervals along the circumference of the tray base 52, the support legs 523 extend substantially along the up-down direction, an arc-shaped plate 56 is fixed at the bottom end of each support leg 523, and the arc-shaped plate 56 can be welded and fixed at the bottom of the corresponding support leg 523.
The groove wall of the groove body 1 comprises a first acid-resistant brick layer 101 and a second acid-resistant brick layer 102, the first inner acid-resistant brick layer is positioned on the inner side of the second acid-resistant brick layer 102, and each arc-shaped plate 56 of the tray base 52 is clamped and fixed between the first acid-resistant brick layer 101 and the second acid-resistant brick layer 102. For example, the second acid-resistant brick layer 102 may be built on the inner side of the tank body 1, then the tray base 52 is placed above the bottom of the second acid-resistant brick layer 102, then the first acid-resistant brick layer 101 may be built on the inner side of the second acid-resistant brick layer 102, and the arc plates 56 at the bottoms of the support legs 523 may be pre-embedded and fixed between the first acid-resistant brick layer 101 and the second acid-resistant brick layer 102.
In some embodiments, the slot wall at the bottom of the slot body 1 is arc-shaped, and the arc of the arc plate 56 is identical to the arc of the slot wall. Specifically, as shown in fig. 1, in order to enhance the structural strength, the slot wall at the bottom of the slot body 1 has a certain radian, and the radian of the arc-shaped plate 56 is consistent with that of the slot wall at the bottom of the slot bottom, so that the degree of engagement between the arc-shaped plate 56 and the slot wall is improved.
In some embodiments, vent 11 is located directly below impingement assembly 5, and vent 11 is located inside of plurality of legs 523. Thereby, the sediment in the tank 1 can flow into the vent 11 through the space between the adjacent two legs 523.
In some embodiments, as shown in fig. 3, the tray base 52 is separately disposed, the tray base 52 includes a supporting plate 521 and a supporting seat 522, the supporting plate 521 is welded and fixed to the supporting seat 522, and the supporting leg 523 is integrally disposed at the bottom of the supporting seat 522. The split arrangement of the tray base 52 facilitates the processing and production.
In some embodiments, a manhole 14 is further provided on the tank wall, an annular support 15 is further provided on the outer peripheral side of the tank wall, the annular support 15 is provided on the outer peripheral side of the tank body 1 and extends along the circumferential direction of the tank body 1, and the annular support 15 is located below the discharge port 12 and the manhole 14.
Specifically, as shown in fig. 1, a manhole 14 is provided at an outer circumferential side of the tank body 1, and the manhole 14 may allow a person to enter an inner cavity of the tank body 1. Annular support 15 establishes on the periphery wall of cell body 1, and annular support 15 extends and closes for the round along the periphery wall of cell body 1, can insert corresponding basis with cell body 1 part below annular support 15 during fixed flash drum 100 in, then through annular support 15 with basic connection fixed can. The installation and fixation of the flash tank 100 are facilitated by the arrangement of the annular support 15.
A metallurgical pressurization system according to an embodiment of the present invention is described below with reference to the accompanying drawings.
The smelting pressurization system according to the embodiment of the invention comprises an autoclave 200 and a flash tank 100, wherein the flash tank 100 can be the flash tank 100 in the embodiment, and the autoclave 200 is communicated with the valve pipe 2 of the flash tank 100.
Specifically, as shown in fig. 4, the autoclave 200 and the flash drum 100 may be communicated through a connection pipe 300, and when in use, the high-temperature saturated liquid in the autoclave 200 may be directly discharged into the flash drum 100 through the connection pipe 300, and the flow rate of the high-temperature saturated liquid in the pipe 2 of the valve 4 may be adjusted by the adjusting valve 4. The high-temperature saturated liquid in the valve pipe 2 is sprayed downwards from the spray head 3, and the anti-impact assembly 5 at the bottom plays a role in resisting impact. In addition, the high-temperature saturated liquid sprayed from the spraying can form saturated steam and saturated liquid, wherein the saturated steam can be discharged through the exhaust port 13 at the top, and the saturated liquid is collected at the bottom of the tank body 1 and can be discharged to the next process equipment from the discharge port 12.
When the sediments in the tank body 1 need to be overhauled or cleaned, the emptying port 11 at the bottom of the tank body 1 is firstly opened to discharge the sediments in the tank body 1, and then an operator can enter the inner cavity of the tank body 1 through the manhole 14 to maintain and clean the sediments.
In some embodiments, the smelting pressure system further includes a connecting pipe 300, the connecting pipe 300 is disposed at the top of the autoclave 200, a first end of the connecting pipe 300 penetrates through the wall of the autoclave 200 and extends into the autoclave 200, the connecting pipe 300 is connected to the wall in a sealing manner, and a second end of the connecting pipe 300 is communicated with the first end of the valve pipe 2.
Specifically, as shown in fig. 4, a connection pipe 300 is disposed at the top of the autoclave 200, and the connection pipe 300 is hermetically connected to the top wall of the autoclave 200, for example, the connection pipe 300 may be hermetically welded to the autoclave 200. The first end of the connection pipe 300 is extended into the autoclave 200, the control valve 4 may be flange-mounted on the top end of the valve pipe 2, and the second end of the connection pipe 300 may be flange-connected to the control valve 4. The discharging mode at the upper part of the connecting pipe 300 can avoid the condition that the connecting pipe 300 is blocked by the deposition materials in the autoclave 200, and the discharging stability of the connecting pipe 300 is ensured.
In some embodiments, the connection pipe 300 includes a first pipe and a second pipe, as shown in fig. 4, wherein the first pipe is provided in the autoclave 200, the first pipe extends in the up-down direction, the top end of the first pipe is fixedly connected to the top wall of the autoclave 200 and is provided with a flange, one end of the second pipe is detachably connected to the first pipe via the flange, and the other end of the second pipe is connected to the adjustment valve 4. Thus, the replacement and design of the second pipe are facilitated, and the second pipe can be selected to be adapted according to the interval between the autoclave 200 and the flash drum 100 when installed on site.
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 devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore 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 explicitly specifically defined 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; may be mechanically coupled, may be electrically coupled or may be in communication with each other; 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 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 (11)
1. A flash drum, comprising:
the device comprises a tank body, wherein an inner cavity is arranged in the tank body, a vent, a discharge port and an exhaust port are arranged on the tank wall of the tank body, the vent is arranged at the bottom of the tank body, the discharge port is arranged on the side wall of the tank body, and the exhaust port is arranged at the top of the tank body;
the valve pipe is arranged at the top of the groove body, penetrates through the groove wall of the groove body and is sealed with the groove wall, the first end of the valve pipe is positioned outside the groove body and is suitable for being communicated with the pressurized kettle, and the second end of the valve pipe is positioned in the inner cavity;
the spray head is detachably arranged at the second end of the valve pipe and is used for spraying materials into the inner cavity;
the regulating valve is arranged at the first end of the valve pipe and is used for regulating the flow of materials in the valve pipe;
the scour protection subassembly, the scour protection subassembly is established the inner chamber is located the bottom of cell body, just the scour protection subassembly is located the shower nozzle below, the scour protection subassembly is used for resisting the follow the impact of shower nozzle spun material.
2. The flash drum according to claim 1, wherein the tank wall comprises a first acid-proof brick layer, a second acid-proof brick layer, a non-metal isolation layer and a metal shell which are sequentially arranged from inside to outside, the first acid-proof brick layer and the second acid-proof brick layer are both formed by acid-proof bricks and acid-proof cement, and the acid-proof bricks of the first acid-proof brick layer and the acid-proof bricks of the second acid-proof brick layer are arranged in a staggered manner.
3. A flash drum according to claim 2, characterized in that an acid-resistant mastic layer is provided between the second acid-resistant brick layer and the non-metallic insulation layer.
4. A flash drum according to claim 1, wherein the impingement assembly comprises a ceramic plate and a tray base, the tray base is provided with a mounting groove at the top, at least a portion of the ceramic plate is embedded in the mounting groove and fixedly connected with the tray base, and the tray base is connected with the bottom of the tank body at the bottom.
5. The flash drum of claim 4, wherein the impingement assembly further comprises a gasket, the peripheral side of the ceramic plate being provided with an annular flange, the gasket being clamped between the annular flange and the upper end face of the tray base.
6. A flash drum according to claim 4, wherein the ceramic plate is fixed in the installation groove by cementing, and the ceramic plate and the tray base are fixedly connected by a connecting piece.
7. A flash drum according to claim 4, wherein the tray base comprises a plurality of legs, the bottom ends of the legs are provided with arc-shaped plates, the tank wall comprises a first acid-resistant brick layer and a second acid-resistant brick layer which are arranged in sequence from inside to outside, and the arc-shaped plates are pre-buried between the first acid-resistant brick layer and the second acid-resistant brick layer.
8. A flash tank as claimed in claim 7 wherein the tank wall at the bottom of the tank is curved, the curvature of the curved plate being coincident with the curvature of the tank wall.
9. The flash tank according to any one of claims 1 to 8, wherein a manhole is further provided on the tank wall, and an annular support is further provided on an outer peripheral side of the tank wall, the annular support being provided on an outer peripheral side of the tank body and extending along a circumferential direction of the tank body, the annular support being located below the discharge port and the manhole.
10. A smelting pressurization system, comprising an autoclave and a flash tank, wherein the flash tank is the flash tank according to any one of claims 1 to 9, and the autoclave is communicated with a valve pipe of the flash tank.
11. The smelting pressurization system according to claim 10, further comprising a connecting pipe, wherein the connecting pipe is arranged at the top of the autoclave, a first end of the connecting pipe penetrates through the wall of the autoclave and extends into the autoclave, the connecting pipe is connected with the wall in a sealing manner, and a second end of the connecting pipe is communicated with the first end of the valve pipe.
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| CN202110683201.6A CN113244855B (en) | 2021-06-21 | 2021-06-21 | Flash tank and smelting pressurization system |
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| CN202110683201.6A CN113244855B (en) | 2021-06-21 | 2021-06-21 | Flash tank and smelting pressurization system |
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| CN113244855B (en) | 2021-11-16 |
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