CN216295750U - High-efficient desulphurization unit - Google Patents
High-efficient desulphurization unit Download PDFInfo
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- CN216295750U CN216295750U CN202122956408.4U CN202122956408U CN216295750U CN 216295750 U CN216295750 U CN 216295750U CN 202122956408 U CN202122956408 U CN 202122956408U CN 216295750 U CN216295750 U CN 216295750U
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Abstract
The utility model relates to the technical field of desulfurization equipment, and provides a high-efficiency desulfurization device which comprises a raw material tower, a raw material pipe, an amine liquid coalescer, a liquid film device, a heating device, a desulfurization device and a regeneration device, wherein the liquid film device is positioned beside the raw material tower, the amine liquid coalescer is positioned between the liquid film device and the raw material tower, the raw material pipe is positioned between the raw material tower and the amine liquid coalescer, two ends of the raw material pipe are respectively communicated with the inside of the raw material tower and one end of the amine liquid coalescer, and the other end of the amine liquid coalescer is communicated with the inside of the liquid film device. The sprayed alkali liquor can be recycled, and the waste of resources is avoided.
Description
Technical Field
The utility model relates to the technical field of desulfurization equipment, in particular to a high-efficiency desulfurization device.
Background
In the petroleum refining process, the Liquefied Petroleum Gas (LPG) produced by coking, atmospheric and vacuum pressure and catalytic cracking devices contains a large amount of sulfide, except H2S and various organic sulfur such as COS and CH3SH、C2H5SH、CH3SCH3Etc., wherein is predominantly CH3SH, sulfide can cause poisoning and inactivation of a catalyst in the subsequent processing process, elemental sulfur and hydrogen sulfide have great corrosion to pipelines and storage containers, and the catalyst can generate SOx when used as a civil fuel, pollute the environment, form acid rain and the like; if the LPG is used as a chemical raw material, the requirements are tighter, the liquefied gas standard (GB1174-1997) of China stipulates that the mass fraction of total sulfur in the LPG is less than 343mg/m3The corrosion grade of the copper sheet is less than 1 grade, so that the deep removal of the sulfide in the LPG has important economic and environmental significance, and the removal of the sulfide in the LPG mainly passes through a desulfurizing tower at present and is absorbed by alkali liquor in the desulfurizing tower so as to achieve the aim of removing the sulfide in the LPGThe purpose of removing sulfide is achieved.
At present, the mode of directly spraying alkali liquor is generally adopted in the prior art to react with sulfide in LPG, the effect of desulfurization is not good, and the shower generally adopts the single tube to spray in addition, appears the dead angle easily, and the alkali liquor after spraying simultaneously is direct to be discharged, can't reuse, has caused the waste of resource.
SUMMERY OF THE UTILITY MODEL
In view of the defects in the prior art, the present invention aims to provide a high-efficiency desulfurization device to solve the problems in the background art.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a high-efficiency desulfurizing device comprises a raw material tower, a raw material pipe, an amine liquid coalescer, a liquid film device, a heating device, a desulfurizing device and a regenerating device, wherein the liquid film device is positioned at the side of the raw material tower, the amine liquid coalescer is positioned between the liquid film device and the raw material tower, the raw material pipe is positioned between the raw material tower and the amine liquid coalescer, the two ends of the raw material pipe are respectively communicated with the inside of the raw material tower and one end of the amine liquid coalescer, the other end of the amine liquid coalescer is communicated with the inside of the liquid film device, the desulfurizing device is positioned at the side of the liquid film device, the heating device is positioned between the liquid film device and the desulfurizing device, the two ends of the heating device are respectively communicated with the inside of the liquid film device and the desulfurizing device, the regenerating device is positioned between the liquid film device and the desulfurizing device, and the two ends of the regenerating device are respectively communicated with the inside of the liquid film device and the desulfurizing device, the liquid film device, the heating device, the desulfurization device and the regeneration device are distributed in a matrix.
Further, the liquid membrane device comprises a first liquid membrane box and a second liquid membrane box, the first liquid membrane box and the second liquid membrane box are arranged at intervals, liquid membrane reactors communicated with the inside of the first liquid membrane box and the second liquid membrane box are respectively arranged at the tops of the first liquid membrane box and the second liquid membrane box, the top of each liquid membrane reactor is provided with an air inlet and a liquid inlet which are arranged at intervals, the tops of the first liquid membrane box and the second liquid membrane box are provided with air outlets, the bottoms of the first liquid membrane box and the second liquid membrane box are provided with liquid outlets, the other end of the amine liquid coalescer is communicated with the air inlet on the first liquid membrane box, the regeneration device is communicated with the liquid inlet on the first liquid membrane box, the air outlet and the liquid outlet on the first liquid membrane box are respectively communicated with the air inlet and the liquid inlet on the second liquid membrane box, the air outlet on the second liquid membrane box is communicated with the inside of the desulfurization device, and the liquid outlet on the second liquid film box is communicated with the heating device.
Further, heating device includes drawing liquid pump, heating cabinet, heater, heating pipe and transfer line, the drawing liquid pump is located the side of second liquid film case, and the liquid outlet on the input of drawing liquid pump and the second liquid film case is linked together, the heating cabinet is located the side of drawing liquid pump, the heating pipe sets up at the heating cabinet, the output of drawing liquid pump runs through the one end of heating cabinet and heating pipe and is linked together, the other end of heating pipe runs through the heating cabinet and outwards extends, the heater sets up on the lateral wall of heating cabinet, the transfer line is located between heating cabinet and the desulphurization unit, the one end of transfer line is linked together with desulphurization unit's inside, and the other end of transfer line is linked together with the other end of heating pipe.
Further, desulphurization unit includes desulfurizing tower, catheter, rotation cover, supplementary seat, rotating electrical machines, striking piece and two striking boards, the one end of transfer line is linked together with the inside of desulfurizing tower, the gas outlet of second liquid film case is linked together and is located the below of transfer line with the inside of desulfurizing tower, the inside of desulfurizing tower is equipped with active carbon adsorption layer, alkali lye adsorption layer and cowling panel about the equidistant active carbon adsorption layer, supplementary seat sets up on the outer wall of desulfurizing tower, and supplementary seat is located the below of transfer line, the catheter is the level and is located between alkali lye adsorption layer and the cowling panel, and the one end of catheter runs through the desulfurizing tower and dock with the transfer line, and the other end of catheter rotates the setting on the inner wall of desulfurizing tower, the pot head of rotating the cover is established in one end of catheter, and the other end of rotating the cover is established on, the outer wall of the liquid guide pipe is provided with a plurality of spray heads which are arranged at equal intervals, each spray head is communicated with the liquid guide pipe, the two impact plates are arranged on the outer wall of the liquid guide pipe at equal angles along the circumferential direction of the rotating sleeve, the impact block is positioned between the two impact plates, the auxiliary plate is arranged at the top of the auxiliary seat, the rotating motor is arranged on the side wall of the auxiliary plate, the output end of the rotating motor penetrates through the auxiliary plate and is fixedly connected with the impact block, limiting plates are arranged at the two ends of the top of the auxiliary seat, an exhaust port is arranged at the top of the desulfurizing tower, and a liquid discharge port is arranged at the bottom of the desulfurizing tower.
Furthermore, the regeneration device comprises a regeneration tower, a waste liquid pump, a waste liquid pipe, a regeneration pump and a regeneration pipe, wherein an alkali liquid regeneration layer and a disulfide separation layer are arranged in the regeneration tower, the alkali liquid regeneration layer is positioned above the disulfide separation layer, the regeneration tower is positioned between the desulfurization tower and the first liquid film box, the waste liquid pump is positioned between the desulfurization tower and the regeneration tower, the input end of the waste liquid pump is communicated with a liquid discharge port, the waste liquid pipe is positioned between the waste liquid pump and the regeneration tower, one end of the waste liquid pipe is communicated with the output end of the waste liquid pump, the other end of the waste liquid pipe is communicated with the alkali liquid regeneration layer in the regeneration tower, the regeneration pump is positioned between the second liquid film box and the regeneration tower, the input end of the regeneration pump is communicated with the disulfide separation layer, the regeneration pipe is positioned between the second liquid film box and the regeneration pump, one end of the regeneration pipe is communicated with the output end of the regeneration pump, and the other end of the regeneration pipe is communicated with a liquid inlet on the second liquid film box.
Furthermore, the cross section of the heating pipe is arranged in a snake-shaped structure.
The utility model has the beneficial effects that:
1. according to the efficient desulfurization device provided by the utility model, liquefied gas is injected into the liquid membrane reactor through the raw material tower, the raw material pipe, the amine liquid coalescer and the gas inlet on the first liquid membrane box in sequence, meanwhile, alkali liquor is also injected into the liquid membrane reactor through the liquid inlet on the first liquid membrane box, the liquefied gas and the alkali liquor perform liquid membrane mass transfer work in the liquid membrane reactor and move downwards to the first liquid membrane box, the alkali liquor moves into the liquid inlet of the second liquid membrane box through the liquid outlet on the first liquid membrane box, and the liquefied gas moves into the gas inlet of the second liquid membrane box through the gas outlet on the first liquid membrane box and then performs liquid membrane mass transfer work, so that the total sulfur content in the liquefied gas is reduced, the oxidation rate of the alkali liquor is improved, and the desulfurization quality is ensured;
2. according to the efficient desulfurization device provided by the utility model, the rotary motor drives the impact block to impact the two impact plates back and forth, so that the rotating sleeve drives the liquid guide pipe to rotate back and forth, the plurality of spray headers swing, the spray area of the spray headers is enlarged, alkali liquor can be fully contacted with liquefied gas, and the practicability is improved;
3. according to the efficient desulfurization device provided by the utility model, the waste liquid pump is driven to move the waste liquid in the desulfurization tower into the alkali liquor regeneration layer in the regeneration tower through the liquid outlet and the waste liquid pipe in sequence to react, the waste liquid sinks into the disulfide separation layer to perform separation work while reacting to obtain alkali liquor, then the regeneration pump is driven, and the alkali liquor which is subjected to the separation work in the regeneration tower is extracted into the first liquid membrane box through the regeneration pipe to be reused.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a liquid film apparatus according to the present invention;
FIG. 3 is a schematic cross-sectional perspective view of a heating device according to the present invention;
FIG. 4 is a schematic cross-sectional view of the desulfurization unit according to the present invention;
FIG. 5 is a schematic perspective view of a part of a desulfurization apparatus according to the present invention;
FIG. 6 is an enlarged view taken at A in FIG. 5;
FIG. 7 is a schematic perspective view of the recycling device of the present invention;
FIG. 8 is a schematic sectional view of a regenerator column according to the present invention.
Reference numerals: the device comprises a raw material tower 1, a raw material pipe 2, an amine liquid coalescer 3, a liquid membrane device 4, a first liquid membrane box 41, a second liquid membrane box 42, a liquid membrane reactor 43, a gas inlet 44, a liquid inlet 45, a gas outlet 46, a liquid outlet 47, a heating device 5, a liquid pumping pump 51, a heating box 52, a heater 53, a heating pipe 54, a liquid conveying pipe 55, a desulfurization device 6, a desulfurization tower 61, a liquid guide pipe 62, a rotating sleeve 63, an auxiliary seat 64, a rotating motor 65, an impact block 66, an impact plate 67, an alkali liquor adsorption layer 68, an activated carbon adsorption layer 69, a rectification plate 610, a spray header 611, an auxiliary plate 612, a limiting plate 613, a regeneration device 7, a regeneration tower 71, a waste liquid pump 72, a waste liquid pipe 73, a regeneration pump 74, a regeneration pipe 75, an alkali liquor regeneration layer 76 and a disulfide separation layer 77.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
In this application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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 description of the present application, it is to be understood that the terms "longitudinal," "lateral," "horizontal," "top," "bottom," "upper," "lower," "inner" and "outer" and the like refer to orientations and positional relationships illustrated in the drawings, which are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or components must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting.
Furthermore, the terms "first", "second", etc. 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. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1 to 8, the present invention provides a high efficiency desulfurization apparatus, comprising a raw material tower 1, a raw material pipe 2, an amine liquid coalescer 3, a liquid film apparatus 4, a heating apparatus 5, a desulfurization apparatus 6 and a regeneration apparatus 7, wherein the liquid film apparatus 4 is located beside the raw material tower 1, the amine liquid coalescer 3 is located between the liquid film apparatus 4 and the raw material tower 1, the raw material pipe 2 is located between the raw material tower 1 and the amine liquid coalescer 3, and both ends of the raw material pipe 2 are respectively communicated with the inside of the raw material tower 1 and one end of the amine liquid coalescer 3, the other end of the amine liquid coalescer 3 is communicated with the inside of the liquid film apparatus 4, the desulfurization apparatus 6 is located beside the liquid film apparatus 4, the heating apparatus 5 is located between the liquid film apparatus 4 and the desulfurization apparatus 6, both ends of the heating apparatus 5 are respectively communicated with the inside of the liquid film apparatus 4 and the desulfurization apparatus 6, the regeneration apparatus 7 is located between the liquid film apparatus 4 and the desulfurization apparatus 6, and both ends of the regenerating device 7 are respectively communicated with the inside of the liquid film device 4 and the desulfurizing device 6, and the liquid film device 4, the heating device 5, the desulfurizing device 6 and the regenerating device 7 are distributed in a matrix.
The specific working process of the utility model is as follows: liquefied gas is injected into the liquid membrane reactor 43 through the raw material tower 1, the raw material pipe 2, the amine liquid coalescer 3 and the gas inlet 44 on the first liquid membrane tank 41 in sequence, meanwhile, alkali liquor is also injected into the liquid membrane reactor 43 through the liquid inlet 45 on the first liquid membrane tank 41, the liquefied gas and the alkali liquor perform liquid membrane mass transfer work in the liquid membrane reactor 43 and move downwards into the first liquid membrane tank 41, the alkali liquor moves into the liquid inlet 45 of the second liquid membrane tank 42 through the liquid outlet 47 on the first liquid membrane tank 41, the liquefied gas moves into the gas inlet 44 of the second liquid membrane tank 42 through the gas outlet 46 on the first liquid membrane tank 41, then the mass transfer liquid membrane work is performed for the first time, the liquid pump 51 is driven, the alkali liquor which completes the mass transfer work in the second liquid membrane tank 42 is pumped into the heating pipe 54 through the liquid outlet 47, the heater 53 is driven to heat the heating pipe 54 in the heating tank 52, and the temperature of the alkali liquor in the heating pipe 54 is ensured, then the alkali liquor moves into the desulfurizing tower 61 through the heating pipe 54 and the liquid conveying pipe 55, the liquefied gas which completes the liquid film mass transfer work moves into the desulfurizing tower 61 through the gas outlet 46 on the second liquid film box 42, meanwhile, the alkali liquor moves into the liquid conveying pipe 62 through the liquid conveying pipe 55, and the liquefied gas in the desulfurizing tower 61 is sprayed through a plurality of spray heads 611 communicated with the liquid conveying pipe 62, when spraying, the rotary motor 65 drives the impact block 66 to impact the two impact plates 67 back and forth, so that the rotary sleeve 63 drives the liquid conveying pipe 62 to rotate back and forth, the plurality of spray heads 611 swing, the spray area of the spray heads 611 is enlarged, the alkali liquor can be fully contacted with the liquefied gas, the liquefied gas in the desulfurizing tower 61 firstly passes through the rectifying plate 610, the gas flow rate and distribution of the liquefied gas become uniform, and then the alkali liquor is sprayed through the spray heads 611 to react with the filtered liquefied gas, the desulfurization effect is achieved, the desulfurized liquefied gas rises to the alkali liquor adsorption layer 68 to completely absorb the residual gaseous alkali liquor, the residual gaseous alkali liquor is filtered through the activated carbon adsorption layer 69, finally, the completely desulfurized liquefied gas is discharged and collected from the exhaust port on the desulfurization tower 61, the sprayed alkali liquor sinks to the liquid discharge port at the bottom of the desulfurization tower 61 and moves into the regeneration tower 71, the waste liquid pump 72 is driven, the waste liquid in the desulfurization tower 61 sequentially passes through the liquid discharge port and the waste liquid pipe 73 to move into the alkali liquor regeneration layer 76 in the regeneration tower 71 for reaction, the waste liquid sinks into the disulfide separation layer 77 during the reaction to be separated and obtain the alkali liquor, then the regeneration pump 74 is driven, and the alkali liquor which completes the separation in the regeneration tower 71 is extracted into the first liquid membrane box 41 through the regeneration pipe 75 to be reused.
In one embodiment, the liquid membrane device 4 includes a first liquid membrane box 41 and a second liquid membrane box 42, the first liquid membrane box 41 and the second liquid membrane box 42 are arranged at intervals, liquid membrane reactors 43 communicated with the inside of the first liquid membrane box 41 and the second liquid membrane box 42 are installed at the tops of the first liquid membrane box 41 and the second liquid membrane box 42, a gas inlet 44 and a liquid inlet 45 arranged at intervals are respectively opened at the top of each liquid membrane reactor 43, a gas outlet 46 is respectively opened at the tops of the first liquid membrane box 41 and the second liquid membrane box 42, a liquid outlet 47 is respectively opened at the bottoms of the first liquid membrane box 41 and the second liquid membrane box 42, the other end of the amine liquid coalescer 3 is communicated with the gas inlet 44 on the first liquid membrane box 41, the regeneration device 7 is communicated with the liquid inlet 45 on the first liquid membrane box 41, the gas outlet 46 and the liquid outlet 47 on the first liquid membrane box 41 are respectively communicated with the gas inlet 44 and the liquid inlet 45 on the second liquid membrane box 42, the gas outlet 46 of the second liquid film box 42 is communicated with the inside of the desulfurization device 6, and the liquid outlet 47 of the second liquid film box 42 is communicated with the heating device 5.
Liquefied gas sequentially passes through the raw material tower 1, the raw material pipe 2, the amine liquid coalescer 3 and the gas inlet 44 on the first liquid membrane box 41 and is injected into the liquid membrane reactor 43, meanwhile, alkali liquor is also injected into the liquid membrane reactor 43 through the liquid inlet 45 on the first liquid membrane box 41, the liquefied gas and the alkali liquor perform liquid membrane mass transfer work in the liquid membrane reactor 43 and move downwards into the first liquid membrane box 41, the alkali liquor moves into the liquid inlet 45 of the second liquid membrane box 42 through the liquid outlet 47 on the first liquid membrane box 41, and the liquefied gas moves into the gas inlet 44 of the second liquid membrane box 42 through the gas outlet 46 on the first liquid membrane box 41 and then performs mass transfer liquid membrane work, so that the total sulfur content in the liquefied gas is reduced, and the oxidation rate of the alkali liquor is improved.
In one embodiment, the heating device 5 includes a liquid pumping pump 51, a heating box 52, a heater 53, a heating pipe 54 and a liquid conveying pipe 55, the liquid pumping pump 51 is located beside the second liquid film box 42, an input end of the liquid pumping pump 51 is communicated with a liquid outlet 47 on the second liquid film box 42, the heating box 52 is located beside the liquid pumping pump 51, the heating pipe 54 is disposed in the heating box 52, an output end of the liquid pumping pump 51 penetrates through the heating box 52 and is communicated with one end of the heating pipe 54, the other end of the heating pipe 54 penetrates through the heating box 52 and extends outwards, the heater 53 is disposed on a side wall of the heating box 52, the liquid conveying pipe 55 is located between the heating box 52 and the desulfurization device 6, one end of the liquid conveying pipe 55 is communicated with the inside of the desulfurization device 6, and the other end of the liquid conveying pipe 55 is communicated with the other end of the heating pipe 54.
The liquid pump 51 is driven to pump the alkali liquor which completes the liquid film mass transfer work in the second liquid film box 42 into the heating pipe 54 through the liquid outlet 47, the heater 53 is driven to heat the heating pipe 54 in the heating box 52 to ensure the temperature of the alkali liquor in the heating pipe 54, and then the alkali liquor moves into the desulfurization device 6 through the heating pipe 54 and the liquid conveying pipe 55 to perform subsequent work.
In one embodiment, the desulfurization device 6 includes a desulfurization tower 61, a liquid guide tube 62, a rotating sleeve 63, an auxiliary seat 64, a rotating motor 65, an impact block 66 and two impact plates 67, one end of the liquid guide tube 55 is communicated with the inside of the desulfurization tower 61, the gas outlet 46 of the second liquid film box 42 is communicated with the inside of the desulfurization tower 61 and is located below the liquid guide tube 55, an activated carbon adsorption layer 69, an alkali liquid adsorption layer 68 and a rectification plate 610 are sequentially arranged in the desulfurization tower 61 at equal intervals from top to bottom, the auxiliary seat 64 is arranged on the outer wall of the desulfurization tower 61, the auxiliary seat 64 is located below the liquid guide tube 55, the liquid guide tube 62 is horizontally located between the alkali liquid adsorption layer 68 and the rectification plate 610, one end of the liquid guide tube 62 penetrates through the desulfurization tower 61 and is connected with the liquid guide tube 55, the other end of the liquid guide tube 62 is rotatably arranged on the inner wall of the desulfurization tower 61, one end of the rotating sleeve 63 is sleeved on one end of the liquid guide tube 62, and the other end of the rotating sleeve 63 rotates the sleeve 63 and is established on the transfer line 55, install a plurality of shower heads 611 that are the equidistant setting on the outer wall of catheter 62, and every shower head 611 all is linked together with catheter 62, two striking plate 67 is along rotating sleeve 63 circumference equiangular setting on its outer wall, striking piece 66 is located between two striking plates 67, accessory plate 612 is installed at the top of accessory seat 64, rotating electrical machines 65 installs on the lateral wall of accessory plate 612, and the output of rotating electrical machines 65 runs through accessory plate 612 and striking piece 66 fixed connection, the both ends at accessory seat 64 top all are equipped with limiting plate 613, the top of desulfurizing tower 61 is equipped with the gas vent, the bottom of desulfurizing tower 61 is equipped with the leakage fluid dram.
The liquefied gas which completes the liquid film mass transfer work moves into the desulfurizing tower 61 through the gas outlet 46 on the second liquid film box 42, meanwhile, the alkali liquor moves into the liquid guide pipe 62 through the liquid guide pipe 55, and the liquefied gas in the desulfurizing tower 61 is sprayed through the plurality of spray heads 611 communicated with the liquid guide pipe 62, when spraying, the rotary motor 65 drives the impact block 66 to impact the two impact plates 67 back and forth, so that the rotary sleeve 63 drives the liquid guide pipe 62 to rotate back and forth, the plurality of spray heads 611 swing, thereby enlarging the spraying area of the spray heads 611, leading the alkali liquor to be fully contacted with the liquefied gas, the liquefied gas in the desulfurizing tower 61 firstly passes through the rectifying plate 610, leading the gas flow rate and distribution of the liquefied gas to be uniform, then the alkali liquor is sprayed through the spray heads 611 to react with the filtered liquefied gas, thereby achieving the desulfurizing effect, the desulfurized liquefied gas rises to the alkali liquor adsorption layer 68 to completely absorb the residual gaseous alkali liquor, and then the liquid is filtered by an active carbon adsorption layer 69, finally the completely desulfurized liquefied gas is discharged and collected from an exhaust port on the desulfurizing tower 61, and the sprayed alkali liquor sinks to a liquid outlet at the bottom of the desulfurizing tower 61 and moves into the regenerating device 7.
In one embodiment, the regeneration device 7 comprises a regeneration tower 71, a waste liquid pump 72, a waste liquid pipe 73, a regeneration pump 74 and a regeneration pipe 75, wherein the regeneration tower 71 is provided with a lye regeneration layer 76 and a disulfide separation layer 77, the lye regeneration layer 76 is positioned above the disulfide separation layer 77, the regeneration tower 71 is positioned between the desulfurization tower 61 and the first liquid film box 41, the waste liquid pump 72 is positioned between the desulfurization tower 61 and the regeneration tower 71, an input end of the waste liquid pump 72 is communicated with a liquid discharge port, the waste liquid pipe 73 is positioned between the waste liquid pump 72 and the regeneration tower 71, one end of the waste liquid pipe 73 is communicated with an output end of the waste liquid pump 72, the other end of the waste liquid pipe 73 is communicated with the lye regeneration layer 76 in the regeneration tower 71, the regeneration pump 74 is positioned between the second liquid film box 42 and the regeneration tower 71, an input end of the regeneration pump 74 is communicated with the disulfide separation layer 77, the regeneration pipe 75 is located between the second liquid film box 42 and the regeneration pump 74, one end of the regeneration pipe 75 is communicated with the output end of the regeneration pump 74, and the other end of the regeneration pipe 75 is communicated with the liquid inlet 45 on the second liquid film box 42.
And driving a waste liquid pump 72 to move the waste liquid in the desulfurizing tower 61 into an alkali liquid regeneration layer 76 in the regeneration tower 71 through a liquid outlet and a waste liquid pipe 73 in sequence for reaction, and the waste liquid sinks into a disulfide separation layer 77 for separation work while reacting to obtain alkali liquid, and then driving a regeneration pump 74 to extract the alkali liquid which completes the separation work in the regeneration tower 71 into the first liquid film box 41 through a regeneration pipe 75 for reuse.
In one embodiment, the heating tube 54 is disposed in a serpentine configuration in cross-section.
The serpentine structure of the heating pipe 54 increases the flow path of the alkali liquor in the heating pipe 54, so that the heating effect is more sufficient.
In one embodiment, the first liquid film box 41 and the second liquid film box 42 are both liquid film reactors in the prior art, and the model of the first liquid film box 41 and the model of the second liquid film box 42 are 55E0025SA, and a suction pump is provided in the prior liquid film reactor, so that the lye can move to the liquid inlet 45 of the second liquid film box 42 through the liquid outlet 47 on the first liquid film box 41.
In one embodiment, the liquid film mass transfer technology is the prior art, and the principle of the liquid film mass transfer technology is the migration process of the solute through the liquid film, and can be divided into migration-promoting type I mass transfer or migration-promoting type II mass transfer according to whether a flowing carrier is added in a film phase or not. The method for promoting migration I type mass transfer is characterized by that it utilizes the liquid film self-body to have a certain solubility for solute, and selectively transfers solute to promote migration II type mass transfer, and adds a certain mobile carrier (generally, the extractant of said solute) into the liquid film, and selectively forms complex compound with solute at interface, then said complex compound can be diffused toward internal phase under the action of concentration gradient, and the complex compound can be decomplexed by internal phase reagent at internal phase interface (back-extraction), so that the solute carrier can be dissociated, the solute can be fed into internal phase, and the carrier can be diffused into external phase interface, and can be complexed with solute. The form greatly improves the selectivity and the application range of the liquid film.
In one embodiment, the regeneration tower 71 is a caustic wash tower in a conventional device, and the regeneration tower 71 has a model of Y250, the caustic wash tower, the middle-lower section of which is a caustic wash section, and the upper section of which is a water wash section. The middle section is concentrated alkali liquor, the lower section is dilute alkali liquor flowing down from the middle section, and the dilute alkali liquor is circulated by a dilute alkali circulating pump, and new alkali liquor is continuously fed into the middle section by an alkali liquor replenishing pump.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A high-efficiency desulfurization device is characterized in that: comprises a raw material tower (1), a raw material pipe (2), an amine liquid coalescer (3), a liquid film device (4), a heating device (5), a desulphurization device (6) and a regeneration device (7), wherein the liquid film device (4) is positioned at the side of the raw material tower (1), the amine liquid coalescer (3) is positioned between the liquid film device (4) and the raw material tower (1), the raw material pipe (2) is positioned between the raw material tower (1) and the amine liquid coalescer (3), the two ends of the raw material pipe (2) are respectively communicated with the inside of the raw material tower (1) and one end of the amine liquid coalescer (3), the other end of the amine liquid coalescer (3) is communicated with the inside of the liquid film device (4), the desulphurization device (6) is positioned at the side of the liquid film device (4), the heating device (5) is positioned between the liquid film device (4) and the desulphurization device (6), the two ends of the heating device (5) are respectively communicated with the liquid film device (4) and the inside of the desulphurization device (6), the regeneration device (7) is positioned between the liquid film device (4) and the desulfurization device (6), two ends of the regeneration device (7) are respectively communicated with the liquid film device (4) and the interior of the desulfurization device (6), and the liquid film device (4), the heating device (5), the desulfurization device (6) and the regeneration device (7) are distributed in a matrix manner.
2. The high-efficiency desulfurization apparatus according to claim 1, characterized in that: the liquid membrane device (4) comprises a first liquid membrane box (41) and a second liquid membrane box (42), the first liquid membrane box (41) and the second liquid membrane box (42) are arranged at intervals, liquid membrane reactors (43) communicated with the inside of the first liquid membrane box (41) and the second liquid membrane box (42) are installed at the tops of the first liquid membrane box (41) and the second liquid membrane box (42), a gas inlet (44) and a liquid inlet (45) which are arranged at intervals are arranged at the top of each liquid membrane reactor (43), a gas outlet (46) is arranged at the tops of the first liquid membrane box (41) and the second liquid membrane box (42), a liquid outlet (47) is arranged at the bottoms of the first liquid membrane box (41) and the second liquid membrane box (42), the other end of the amine liquid coalescer (3) is communicated with the gas inlet (44) on the first liquid membrane box (41), and the regeneration device (7) is communicated with the liquid inlet (45) on the first liquid membrane box (41), and the gas outlet (46) and the liquid outlet (47) on the first liquid film box (41) are respectively communicated with the gas inlet (44) and the liquid inlet (45) on the second liquid film box (42), the gas outlet (46) on the second liquid film box (42) is communicated with the inside of the desulfurization device (6), and the liquid outlet (47) on the second liquid film box (42) is communicated with the heating device (5).
3. The high-efficiency desulfurization apparatus according to claim 2, characterized in that: heating device (5) is including drawing liquid pump (51), heating cabinet (52), heater (53), heating pipe (54) and transfer line (55), drawing liquid pump (51) are located the side of second liquid film case (42), and the input of drawing liquid pump (51) is linked together with liquid outlet (47) on second liquid film case (42), heating cabinet (52) are located the side of drawing liquid pump (51), heating pipe (54) set up in heating cabinet (52), the output of drawing liquid pump (51) runs through the one end that heating cabinet (52) and heating pipe (54) and is linked together, the other end of heating pipe (54) runs through heating cabinet (52) and outside extension, heater (53) set up on the lateral wall of heating cabinet (52), transfer line (55) are located between heating cabinet (52) and desulphurization unit (6), the one end of transfer line (55) is linked together with the inside of desulphurization unit (6), and the other end of the transfusion tube (55) is communicated with the other end of the heating tube (54).
4. A high efficiency desulfurization apparatus in accordance with claim 3, characterized in that: the desulfurization device (6) comprises a desulfurization tower (61), a liquid guide pipe (62), a rotating sleeve (63), an auxiliary seat (64), a rotating motor (65), an impact block (66) and two impact plates (67), one end of the liquid guide pipe (55) is communicated with the inside of the desulfurization tower (61), a gas outlet (46) of a second liquid film box (42) is communicated with the inside of the desulfurization tower (61) and is positioned below the liquid guide pipe (55), the inside of the desulfurization tower (61) is sequentially provided with an active carbon adsorption layer (69), an alkali liquid adsorption layer (68) and a rectification plate (610) at equal intervals from top to bottom, the auxiliary seat (64) is arranged on the outer wall of the desulfurization tower (61), the auxiliary seat (64) is positioned below the liquid guide pipe (55), the liquid guide pipe (62) is horizontally positioned between the alkali liquid adsorption layer (68) and the rectification plate (610), and one end of the liquid guide pipe (62) penetrates through the desulfurization tower (61) and is connected with the liquid guide pipe (55), the other end of the liquid guide pipe (62) is rotatably arranged on the inner wall of the desulfurizing tower (61), one end of the rotating sleeve (63) is sleeved on one end of the liquid guide pipe (62), the other end of the rotating sleeve (63) is rotatably sleeved on the liquid conveying pipe (55), a plurality of spray heads (611) which are arranged at equal intervals are arranged on the outer wall of the liquid guide pipe (62), each spray head (611) is communicated with the liquid guide pipe (62), the two impact plates (67) are arranged on the outer wall of the rotating sleeve (63) at equal angles along the circumferential direction of the rotating sleeve (63), the impact block (66) is positioned between the two impact plates (67), the auxiliary plate (612) is arranged at the top of the auxiliary seat (64), the rotating motor (65) is arranged on the side wall of the auxiliary plate (612), and the output end of the rotating motor (65) penetrates through the plate (612) and is fixedly connected with the impact block (66), the both ends at auxiliary seat (64) top all are equipped with limiting plate (613), the top of desulfurizing tower (61) is equipped with the gas vent, the bottom of desulfurizing tower (61) is equipped with the leakage fluid dram.
5. The high-efficiency desulfurization apparatus according to claim 4, characterized in that: the regeneration device (7) comprises a regeneration tower (71), a waste liquid pump (72), a waste liquid pipe (73), a regeneration pump (74) and a regeneration pipe (75), wherein an alkali liquid regeneration layer (76) and a disulfide separation layer (77) are arranged in the regeneration tower (71), the alkali liquid regeneration layer (76) is positioned above the disulfide separation layer (77), the regeneration tower (71) is positioned between the desulfurization tower (61) and the first liquid film box (41), the waste liquid pump (72) is positioned between the desulfurization tower (61) and the regeneration tower (71), the input end of the waste liquid pump (72) is communicated with a liquid discharge port, the waste liquid pipe (73) is positioned between the waste liquid pump (72) and the regeneration tower (71), one end of the waste liquid pipe (73) is communicated with the output end of the waste liquid pump (72), and the other end of the waste liquid pipe (73) is communicated with the alkali liquid regeneration layer (76) in the regeneration tower (71), the regeneration pump (74) is located between the second liquid film box (42) and the regeneration tower (71), the input end of the regeneration pump (74) is communicated with the disulfide separation layer (77), the regeneration pipe (75) is located between the second liquid film box (42) and the regeneration pump (74), one end of the regeneration pipe (75) is communicated with the output end of the regeneration pump (74), and the other end of the regeneration pipe (75) is communicated with the liquid inlet (45) on the second liquid film box (42).
6. A high efficiency desulfurization apparatus in accordance with claim 3, characterized in that: the cross section of the heating pipe (54) is arranged in a serpentine structure.
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Address after: 261061 middle section of Fushou East Street, high tech Industrial Development Zone, Weifang City, Shandong Province Patentee after: Hongrun Petrochemical (Weifang) Co.,Ltd. Address before: 261000 middle section of Fushou East Street, high tech Industrial Development Zone, Weifang City, Shandong Province Patentee before: SINOCHEM HONGRUN PETROCHEMICAL CO.,LTD. |