CN213467355U - Raw material desulphurization unit is used in production of high-purity propane - Google Patents

Abstract

The utility model discloses a raw materials desulphurization unit is used in high-purity propane production, which comprises a housin, the casing embeds there is cylindrical cavity, casing lower extreme lateral wall is fixed with the mixer that runs through a plurality of equidistance distributions that set up, the inside lower extreme of casing is provided with thick liquid oxidation zone, thick liquid oxidation zone top is provided with and runs through the inlet pipeline of casing lateral wall, thick liquid oxidation zone top is provided with spray system, the fixed two-layer that is provided with in spray system top with the inside cavity assorted defroster of casing. The utility model relates to a high concentration propane desulfurization technical field through setting up spraying system, metal mesh for vortex shower nozzle forms alkaline liquid detention region with atomizing nozzle during operation simultaneously, lets have good contact condition and neutralization time through detention regional raw materials and alkaline liquid, can place bagged drier on the metal mesh in addition, can dehumidify the moisture absorption to the gas after the desulfurization defogging, has further improved concentration.

Description

Raw material desulphurization unit is used in production of high-purity propane

Technical Field

The utility model relates to a high concentration propane desulfurization technical field specifically is a raw materials desulphurization unit is used in high-purity propane production.

Background

The high-purity propane is mainly used for preparing raw materials of ethylene and propylene by cracking, and is also used for preparing acrylonitrile, nitropropane, propane and perchloroethylene besides being used as fuel and refrigerant; the solvent for deasphalting and desulfurization is used in oil refinery. The high-purity propane is widely used as standard gas, correction gas, on-line instrument standard gas and prepared special mixed gas in the industrial departments of chemical industry, metallurgy, electronics, petroleum and the like, and the fields of basic research, atmospheric pollution monitoring, aviation, atomic energy and the like. Used as fuel and refrigerant, raw material for producing ethylene and propylene, and also used for organic synthesis.

Present high-purity propane is the accessory substance through handling natural gas or refined petroleum obtains, then get after getting rid of impurity through desulfurization dehydrogenation etc, raw materials desulphurization unit is mainly the desulfurizing tower for present production, and spray set in the desulfurizing tower, what adopt usually is that the one-way mode of spraying of vertical direction goes on, such jet range is more limited, the degree of consistency of spraying is not high, and because the high restriction of desulfurizing tower, it is limited to lead to the raw materials to be in the regional time that sprays, the time that can take place effective chemical reaction is not enough, thereby lead to desulfurization efficiency not high, reach required concentration, the defogging efficiency of present defroster generally only ninety percent about in addition, still can mix partial impurity, lack ending drying device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a raw materials desulphurization unit is used in high-purity propane production to solve the spray set degree of consistency on the existing market that above-mentioned background art provided not high, the reaction hold-up time is short and lead to the problem of the dry step of ending after desulfurization inefficiency, lack the defogging.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a raw materials desulphurization unit is used in high-purity propane production, includes the casing, the casing embeds there is cylindrical cavity, casing lower extreme lateral wall is fixed with the mixer that runs through a plurality of equidistance distributions that set up, the inside lower extreme of casing is provided with thick liquid oxidation zone, thick liquid oxidation zone top is provided with and runs through the inlet pipeline of casing lateral wall, thick liquid oxidation zone top is provided with spraying system, spraying system top fixed be provided with two-layer with the inside cavity assorted defroster of casing, the fixed outlet duct that is provided with in casing upper end, the casing with the fixed metal mesh that is provided with in junction of outlet duct, the metal mesh top side wall is provided with the switch door.

Preferably, the paddle of the stirrer is of a screw propulsion type, and an included angle between a stirring rod of the stirrer and the horizontal direction is 10 degrees.

Preferably, the spraying system contains a plurality of infusion pipeline, two main spray set, two vice spray set, a plurality of atomizing nozzle and a plurality of vortex shower nozzle, the infusion pipeline runs through the casing lateral wall and with main spray set and vice spray set are connected and are set up, two main spray set is on a parallel with casing bottom surface and relative setting, vice spray set perpendicular to casing bottom surface just is located main spray set both sides set up relatively.

Preferably, the main spraying device is composed of an outer square pipeline, an inner square pipeline, two strip-shaped pipelines and a round pipeline, the vertex of the inner square pipeline is located at the middle point of each edge of the outer square pipeline, the round pipeline is connected to the middle of the inner square pipeline through the two strip-shaped pipelines, a plurality of uniform and symmetrical vortex spray heads are fixedly arranged on the main spraying device, the two vortex spray heads on the main spraying device are oppositely arranged, the vortex spray heads 7 are 6353-SS-5 in model, a plurality of uniformly arranged atomizing nozzles are fixedly arranged on the auxiliary spraying device, and the two atomizing nozzles on the auxiliary spraying device are oppositely arranged.

Preferably, the demister 8 is DV880, and the switch door is provided with a rubber sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the spraying system, the main spraying device, the auxiliary spraying devices, the atomizing nozzles and the vortex nozzles, firstly, the range of alkaline liquid sprayed by the vortex nozzles is larger and more uniform, when a plurality of oppositely arranged vortex nozzles work simultaneously, an alkaline liquid detention area can be formed, so that raw materials passing through the detention area and the alkaline liquid have good contact conditions and neutralization reaction time, in addition, the auxiliary spraying devices on two sides can also provide the atomized alkaline liquid, so that the larger area can be covered, the main spraying device can be washed, and the desulfurized precipitate can conveniently fall into a slurry oxidation area below;

2. through setting up double-deck defroster and metal mesh, come further to purify gas, detach the droplet of smuggleing secretly wherein to can also reach the effect that reduces the scale deposit, can place bagged drier on the metal mesh in addition, can close the dehumidification moisture absorption effect to the gas after the desulfurization defogging, further improve concentration.

Drawings

FIG. 1 is a schematic structural view of a raw material desulfurization apparatus for high purity propane production according to the present invention;

FIG. 2 is a schematic view of the internal structure of a raw material desulfurization apparatus for producing high-purity propane according to the present invention;

FIG. 3 is a schematic structural view of a spraying system of a raw material desulfurization device for producing high-purity propane according to the present invention;

FIG. 4 is a schematic structural view of a vortex nozzle of a raw material desulfurization device for producing high-purity propane according to the present invention;

FIG. 5 is a schematic structural view of a demister of the raw material desulfurization device for high-purity propane production according to the present invention;

fig. 6 is a schematic structural diagram of an outlet pipeline of the raw material desulfurization device for producing high-purity propane according to the present invention.

In the figure: 1. a housing; 2. a blender; 3. an inlet duct; 4. a spray system; 401. a fluid delivery conduit; 5. a main spray device; 6. a secondary spray device; 601. an atomizing nozzle; 7. a vortex nozzle; 8. a demister; 9. an outlet conduit; 10. a metal mesh; 11. opening and closing the door; 12. a seal ring; 13. a slurry oxidation zone.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-6, a raw material desulfurization device for high-purity propane production comprises a shell 1, a cylindrical cavity is arranged in the shell 1, a plurality of mixers 2 which are distributed at equal intervals and are arranged in a penetrating way are fixed on the side wall of the lower end of the shell 1, blades of the mixers 2 are of a spiral propulsion type, the included angle between a stirring rod of each mixer 2 and the horizontal direction is 10 degrees, in order to destroy the symmetry of a circulation loop and prevent precipitation, a slurry oxidation zone 13 is arranged at the lower end in the slurry shell 1, an inlet pipeline 3 which penetrates through the side wall of the shell 1 is arranged above the slurry oxidation zone 13, a spraying system 4 is arranged above the slurry oxidation zone 13, each spraying system 4 comprises a plurality of liquid conveying pipelines 401, two main spraying devices 5, two auxiliary spraying devices 6, a plurality of atomizing nozzles 601 and a plurality of vortex nozzles 7, each liquid conveying pipeline 401 penetrates through the side wall of the shell 1, the two main spraying devices 5 are parallel to the bottom surface of the shell 1 and are oppositely arranged, the auxiliary spraying device 6 is perpendicular to the bottom surface of the shell 1 and is positioned at two sides of the main spraying devices 5 and is oppositely arranged, the main spraying device 5 comprises an outer square pipeline, an inner square pipeline, two strip pipelines and a circular pipeline, the vertex of the inner square pipeline is positioned at the middle point of each side of the outer square pipeline, the circular pipeline is connected to the middle of the inner square pipeline through the two strip pipelines, a plurality of uniform and symmetrical vortex spray heads 7 are fixedly arranged on the main spraying device 5, the vortex spray heads 7 on the two main spraying devices 5 are oppositely arranged, when the plurality of vortex spray heads 7 oppositely arranged work simultaneously, an alkaline liquid retention area can be formed, so that raw materials passing through the retention area have good contact conditions and neutralization reaction time with the alkaline liquid, the model number of the vortex spray heads 7 is 6353-SS-5, a plurality of evenly arranged atomizing nozzles 601 are fixed on the auxiliary spraying device 6, the atomizing nozzles 601 on the two auxiliary spraying devices 6 are oppositely arranged, which can cover a larger area, and can wash the main spraying device 5, so that the desulfurized sediments can fall into the slurry oxidation zone 13 below, two layers of demisters 8 matched with the inner cavity of the shell 1 are fixedly arranged above the spraying system 4, the model of the demister 8 is DV880, so as to further purify the gas and remove entrained fog drops, and can also achieve the effect of reducing scale formation, an outlet pipeline 9 is fixedly arranged at the upper end of the shell 1, a metal net 10 is fixedly arranged at the joint of the shell 1 and the outlet pipeline 9, a bagged drying agent can be placed on the metal net 10, the tail-closing, dehumidifying and moisture-absorbing effects can be carried out on the desulfurized and demisted gas, the concentration is further improved, a switch door 11 is arranged on the side wall above the metal net 10, the switch door 11 is provided with a rubber sealing ring 12 to prevent the gas from side leakage.

The utility model discloses in, at first let in the raw materials from inlet pipe 3, during through spraying system 4, the sulphur gas in the raw materials fully reacts with vortex shower nozzle 7 and atomizing nozzle 601 spun alkaline liquid, the precipitate that generates falls into the thick liquid oxidation zone 13 of below, the further oxidation that generates of stirring through mixer 2, gas through spraying system 4 passes through defroster 8 again, detach the fog drop that wherein mix with, the moisture absorption dehumidification process of the drier on metal mesh 10 at last, the concentration of propane has further been improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A raw material desulfurization device for producing high-purity propane comprises a shell (1) and is characterized in that a cylindrical cavity is arranged in the shell (1), a plurality of stirrers (2) which are arranged in a penetrating manner and distributed at equal intervals are fixed on the side wall of the lower end of the shell (1), a slurry oxidation area (13) is arranged at the lower end in the shell (1), an inlet pipeline (3) which penetrates through the side wall of the shell (1) is arranged above the slurry oxidation area (13), a spraying system (4) is arranged above the slurry oxidation area (13), two layers of demisters (8) matched with the cavity in the shell (1) are fixedly arranged above the spraying system (4), an outlet pipeline (9) is fixedly arranged at the upper end of the shell (1), and a metal mesh (10) is fixedly arranged at the joint of the shell (1) and the outlet pipeline (9), and a switch door (11) is arranged on the side wall above the metal net (10).

2. The apparatus for desulfurizing a raw material for producing high-purity propane, according to claim 1, wherein the paddle of said stirrer (2) is of a screw propeller type, and the angle of the stirring rod of said stirrer (2) with respect to the horizontal direction is 10 degrees.

3. The raw material desulfurization device for high-purity propane production according to claim 1, characterized in that the spray system (4) comprises a plurality of liquid delivery pipes (401), two main spray devices (5), two auxiliary spray devices (6), a plurality of atomizing nozzles (601) and a plurality of vortex spray heads (7), wherein the liquid delivery pipes (401) penetrate through the side wall of the casing (1) and are connected with the main spray devices (5) and the auxiliary spray devices (6), the two main spray devices (5) are parallel to the bottom surface of the casing (1) and are oppositely arranged, and the auxiliary spray devices (6) are perpendicular to the bottom surface of the casing (1) and are oppositely arranged at two sides of the main spray devices (5).

4. The apparatus for desulfurizing a raw material for producing high-purity propane according to claim 3, the main spraying device (5) consists of an outer square pipeline, an inner square pipeline, two strip pipelines and a round pipeline, the vertex of the inner square pipeline is positioned at the midpoint of each side of the outer square pipeline, the round pipeline is connected to the middle of the inner square pipeline through two strip-shaped pipelines, a plurality of uniform and symmetrical vortex spray heads (7) are fixedly arranged on the main spray device (5), and the vortex spray heads (7) on the two main spray devices (5) are arranged oppositely, the model of the vortex nozzle (7) is 6353-SS-5, a plurality of uniformly arranged atomizing nozzles (601) are fixed on the auxiliary spraying device (6), and the atomizing nozzles (601) on the two auxiliary spraying devices (6) are arranged oppositely.

5. The raw material desulfurization apparatus for high purity propane production according to claim 1, wherein the demister (8) is of a type DV880, and the opening and closing door (11) is provided with a rubber packing (12).

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