Naphtha processing desulfurization device

Abstract

The utility model relates to the technical field of naphtha desulfurization, and discloses a naphtha processing desulfurization device which comprises a mixing barrel, a feeding pipe is fixedly connected to the upper end of the left side of the mixing barrel, a fixing frame is fixedly connected to the upper end of the right side of the mixing barrel, and a conveying pump is installed on the inner side of the fixing frame. An air inlet pipe of the conveying pump is arranged in the mixing barrel in a penetrating manner, an air outlet pipe of the conveying pump is fixedly connected with a flow guide pipe, the lower end of the flow guide pipe is arranged in the middle of the lower end of the mixing barrel in a penetrating manner and is fixedly connected with an aeration box, and a cover plate is mounted at the top of the mixing barrel. According to the naphtha mixing device, hydrogen in the upper end of the mixing barrel is pumped out through the conveying pump and guided to the bottom of the mixing barrel through the flow guide pipe, the contact probability of the hydrogen and naphtha is increased, the utilization rate of the hydrogen is increased, the L-shaped rod, the first stirring paddle and the second stirring paddle are driven by the first stirring rod and the second stirring rod to rotate, and naphtha is stirred; the contact of hydrogen and naphtha is promoted, and the naphtha desulfurization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to naphtha desulfurization technical field especially relates to a naphtha processing desulfurization device. BACKGROUND

[0002] Naphtha, also known as light oil or crude gasoline, is a kind of light hydrocarbon mixture refined from petroleum. The main source of naphtha is obtained through the fractionating column in the crude oil distillation process, which is usually separated from the light components of crude oil under normal or reduced pressure. According to the different composition and purpose, naphtha can be divided into many types, such as straight-run naphtha, catalytic cracking naphtha, etc. In the process of petroleum chemical industry, naphtha is usually used as the raw material for catalytic cracking or reforming. Sulfides can poison the catalyst and reduce the activity and life of the catalyst. Through desulfurization, the catalyst can be protected, and the production efficiency and product quality can be improved.

[0003] In the prior art, hydrogen desulfurization is a kind of naphtha desulfurization with high efficiency, and the existing naphtha desulfurization device cannot maximize the desulfurization efficiency after the hydrogen is introduced, and the hydrogen cannot be fully utilized, which causes waste. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a naphtha processing desulfurization device, which can promote the contact between hydrogen and naphtha, improve the utilization rate of hydrogen, and improve the desulfurization efficiency of naphtha.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A naphtha processing desulfurization device, comprising a mixing barrel, a feeding pipe is fixedly connected to the left upper end of the mixing barrel, a fixing frame is fixedly connected to the right upper end of the mixing barrel, a delivery pump is installed on the inner side of the fixing frame, the air inlet pipe of the delivery pump is arranged in the interior of the mixing barrel, the air outlet pipe of the delivery pump is fixedly connected with a flow guide pipe, the lower end of the flow guide pipe is arranged in the middle of the lower end of the mixing barrel and is fixedly connected with an aeration box, a cover plate is installed on the top of the mixing barrel, a first stirring rod is rotatably connected to the middle of the cover plate, a second stirring rod is rotatably connected to the interior of the first stirring rod, the same driving assembly is installed on the upper end of the first stirring rod and the second stirring rod, and stirring structures are arranged on the lower end of the first stirring rod and the second stirring rod.

[0007] Further, the stirring structure comprises L-shaped rods fixedly connected to the left and right sides of the lower end of the first stirring rod, and first stirring paddles are fixedly connected to the exterior of the L-shaped rods.

[0008] Further, the stirring structure further comprises a second stirring paddle fixedly connected to the left and right sides of the lower end of the second stirring rod.

[0009] Further, the driving assembly comprises an L-shaped plate fixedly connected to the top of the cover plate, a transmission gear rotatably connected to the left side of the L-shaped plate, and a driving gear meshingly connected to the upper and lower ends of the left side of the transmission gear.

[0010] Further, the L-shaped plate is fixedly connected with a motor, and the driving end of the motor is fixedly connected to the top of the upper end of the second stirring rod.

[0011] Further, the upper end of the mixing barrel is fixedly connected with at least two limiting rods, and the lower end of the limiting rod is fixedly connected with a limiting ring.

[0012] Further, the lower end of the first stirring rod is rotatably connected with a partition plate, the outer side of the partition plate is provided with at least two openings, and the outer wall of the opening is tightly matched with the outer wall of the limiting rod.

[0013] Further, the bottom of the mixing barrel is fixedly connected with a base, and the left end of the base is provided with a slot matched with the flow guide pipe.

[0014] The utility model has the following beneficial effects:

[0015] 1、 the utility model discloses a conveying pump is extracted hydrogen in the inside of the upper end of mixing barrel, and is guided to the bottom of mixing barrel through flow guide pipe, and is exploded through aeration box, thereby increasing the contact probability of hydrogen and naphtha, improve the utilization of hydrogen.

[0016] 2、 the utility model discloses the motor drives the second stirring rod to rotate, and the second stirring rod rotates through the driving gear and transmission gear and drives the first stirring rod to rotate reversely, thereby through the first stirring rod and the second stirring rod drive L-shaped rod, first stirring paddle and second stirring paddle rotate, and naphtha is stirred, and the contact of hydrogen and naphtha is promoted, and the efficiency of naphtha desulfurization is improved. DRAWINGS

[0017] Figure 1 It is the whole schematic view of a naphtha processing desulfurization device proposed in the utility model;

[0018] Figure 2 It is the partition plate schematic view of a naphtha processing desulfurization device proposed in the utility model;

[0019] Figure 3The utility model provides a kind of L-shaped rod schematic diagram of naphtha processing desulfurization device.

[0020] Figure 4 For Figure 1 Enlarged view at A.

[0021] Legend:

[0022] 1, mixing barrel;2, feeding pipe;3, fixed frame;4, delivery pump;5, flow guide pipe;6, aeration box;7, cover plate;8, first stirring rod;9, second stirring rod;10, partition;11, opening;12, limit rod;13, limit ring;14, L-shaped rod;15, first stirring paddle;16, second stirring paddle;17, L-shaped plate;18, transmission gear;19, driving gear;20, motor;21, base. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Referring Figures 1-3 , the utility model provides an embodiment: a kind of naphtha processing desulfurization device, including mixing barrel 1, the left side upper end of mixing barrel 1 is fixedly connected with feeding pipe 2, the right side upper end of mixing barrel 1 is fixedly connected with fixed frame 3, the inside of fixed frame 3 is installed with delivery pump 4, the air inlet pipe of delivery pump 4 is arranged in the inside of mixing barrel 1, the air outlet pipe of delivery pump 4 is fixedly connected with flow guide pipe 5, the lower end of flow guide pipe 5 is arranged in the lower end middle part of mixing barrel 1 and is fixedly connected with aeration box 6, the top of mixing barrel 1 is installed with cover plate 7, the middle part of cover plate 7 is rotatably connected with first stirring rod 8, the inside of first stirring rod 8 is rotatably connected with second stirring rod 9, the lower end left and right sides of first stirring rod 8 are fixedly connected with L-shaped rod 14, the outside of L-shaped rod 14 is fixedly connected with first stirring paddle 15, the lower end left and right sides of second stirring rod 9 are fixedly connected with second stirring paddle 16, second stirring paddle 16 is arranged at interval with first stirring paddle 15, referring Figure 4The top of the cover plate 7 is fixedly connected with an L-shaped plate 17, the left side of the L-shaped plate 17 is rotatably connected with a transmission gear 18, the left side of the transmission gear 18 is rotatably connected with a driving gear 19, the middle part of the driving gear 19 at the lower end of the transmission gear 18 is fixedly connected with the upper end of the first stirring rod 8, the middle part of the driving gear 19 at the upper end of the transmission gear 18 is fixedly connected with the upper end of the second stirring rod 9, the upper side of the L-shaped plate 17 is fixedly connected with a motor 20, and the driving end of the motor 20 is fixedly connected with the upper end of the second stirring rod 9.

[0025] The naphtha is stored in the inside of the mixing barrel 1, the hydrogen is injected into the mixing barrel 1 through the arranged feeding pipe 2, contacts with the naphtha, and contacts with the sulfides in the naphtha, the hydrogen in the inside of the mixing barrel 1 is extracted by the arranged conveying pump 4, is guided to the bottom of the mixing barrel 1 through the flow guide pipe 5, and is exploded through the aeration box 6, the hydrogen is promoted to contact with the sulfides in the naphtha, reaction is carried out, the unreacted hydrogen flows to the top of the mixing barrel 1, and is guided to the bottom of the mixing barrel 1 through the conveying pump 4, the flow guide pipe 5 and the aeration box 6, so that the hydrogen is continuously circulated, the utilization rate of the hydrogen is improved, the naphtha desulfurization is promoted, and the naphtha desulfurization rate is improved; the second stirring rod 9 is driven to rotate by the arranged motor 20, the second stirring rod 9 drives the driving gear 19 at the upper end to rotate, the driving gear 19 at the lower end is driven to rotate through the transmission gear 18, so that the first stirring rod 8 is driven to rotate, the first stirring rod 8 and the second stirring rod 9 rotate at the same time, and the rotating directions are opposite, the second stirring rod 9 drives the second stirring paddle 16 to rotate, the first stirring rod 8 drives the L-shaped rod 14 and the first stirring paddle 15 to rotate, and the first stirring paddle 15 and the second stirring paddle 16 rotate to stir the naphtha, so that the naphtha is promoted to contact with the hydrogen, and the naphtha desulfurization efficiency is improved.

[0026] With reference to Figures 1-3 The upper end inner wall of the mixing barrel 1 is fixedly connected with at least two limiting rods 12, the lower ends of the limiting rods 12 are fixedly connected with a limiting ring 13, the lower end outer portion of the first stirring rod 8 is rotatably connected with a partition plate 10, at least two openings 11 are arranged on the outer side of the partition plate 10, the outer wall of the opening 11 is tightly matched with the outer wall of the limiting rod 12, the bottom of the mixing barrel 1 is fixedly connected with a base 21, and the left end of the base 21 is provided with a slot matched with the flow guide pipe 5.

[0027] The arranged partition plate 10 is used for separating the naphtha and the upper end of the mixing barrel 1, the partition plate 10 is provided with a through hole, the hydrogen passes through the through hole to contact with the naphtha, the limiting rod 12 is matched with the opening 11, the partition plate 10 can be limited, the partition plate 10 can be prevented from rotating with the first stirring rod 8, and the partition plate 10 can be arranged to prevent the naphtha from being extracted when the conveying pump 4 extracts the hydrogen.

[0028] Working principle: the naphtha is placed in the mixing barrel 1, hydrogen is injected into the mixing barrel 1 through the set feeding pipe 2 and contacts with the naphtha, the set conveying pump 4 is started to draw out the hydrogen at the upper end of the mixing barrel 1 and guide it to the bottom of the mixing barrel 1 through the flow guide pipe 5, and the hydrogen is blown out through the aeration box 6 and contacts with the naphtha to react with the sulfide therein, the set motor 20 drives the second stirring rod 9 to rotate, the rotating second stirring rod 9 drives the driving gear 19 at the upper end to rotate and drives the transmission gear 18 to rotate, the rotating transmission gear 18 drives the driving gear 19 at the upper end of the first stirring rod 8 to rotate, so that the first stirring rod 8 and the second stirring rod 9 rotate and the rotating directions are opposite, so as to drive the L-shaped rod 14, the first stirring paddle 15 and the second stirring paddle 16 to rotate, rotate the naphtha, promote the naphtha to contact with the hydrogen, and the unreacted hydrogen moves upward again, passes through the conveying pump 4, the flow guide pipe 5 and the aeration box 6 again to guide to the bottom of the mixing barrel 1 and blow out again to react with the sulfide.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application and does not limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A desulfurization device for naphtha processing, characterized in that, The system includes a mixing tank (1), a feeding pipe (2) is fixedly connected to the upper left side of the mixing tank (1), a fixing frame (3) is fixedly connected to the upper right side of the mixing tank (1), a conveying pump (4) is installed inside the fixing frame (3), the air inlet pipe of the conveying pump (4) passes through the inside of the mixing tank (1), the air outlet pipe of the conveying pump (4) is fixedly connected to a guide pipe (5), the lower end of the guide pipe (5) passes through the middle of the lower end of the mixing tank (1) and is fixedly connected to an aeration box (6), a cover plate (7) is installed on the top of the mixing tank (1), a first stirring rod (8) is rotatably connected to the middle of the cover plate (7), a second stirring rod (9) is rotatably connected inside the first stirring rod (8), the same driving component is installed at the upper end of the first stirring rod (8) and the stirring structure is provided at the lower end of the first stirring rod (8) and the second stirring rod (9).

2. The naphtha processing desulfurization device according to claim 1, characterized in that: The stirring structure includes an L-shaped rod (14) fixedly connected to the left and right sides of the lower end of the first stirring rod (8), and a first stirring paddle (15) is fixedly connected to the outside of the L-shaped rod (14).

3. The naphtha processing desulfurization device according to claim 1, characterized in that: The stirring structure also includes a second stirring paddle (16) fixedly connected to the left and right sides of the lower end of the second stirring rod (9), and the second stirring paddle (16) and the first stirring paddle (15) are spaced apart.

4. The naphtha processing desulfurization device according to claim 1, characterized in that: The drive assembly includes an L-shaped plate (17) fixedly connected to the top of the cover plate (7). A transmission gear (18) is rotatably connected to the left side of the L-shaped plate (17). Both the upper and lower ends of the left side of the transmission gear (18) are meshed with drive gears (19). The middle part of the drive gear (19) at the lower end of the transmission gear (18) is fixedly connected to the upper outside of the first stirring rod (8). The middle part of the drive gear (19) at the upper end of the transmission gear (18) is fixedly connected to the upper outside of the second stirring rod (9).

5. The naphtha processing desulfurization device according to claim 4, characterized in that: A motor (20) is fixedly connected to the upper side of the L-shaped plate (17), and the driving end of the motor (20) is fixedly connected to the top of the upper end of the second stirring rod (9).

6. The naphtha processing desulfurization device according to claim 1, characterized in that: At least two limiting rods (12) are fixedly connected to the upper inner wall of the mixing tank (1), and the lower ends of the limiting rods (12) are fixedly connected to a limiting ring (13).

7. The naphtha processing desulfurization device according to claim 1, characterized in that: The lower end of the first stirring rod (8) is rotatably connected to a partition (10), and the outer side of the partition (10) is provided with at least two openings (11), the outer wall of the opening (11) is tightly fitted with the outer wall of the limiting rod (12).

8. The naphtha processing desulfurization device according to claim 1, characterized in that: The bottom of the mixing tank (1) is fixedly connected to a base (21), and the left end of the base (21) is provided with a slot that cooperates with the guide pipe (5).

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