CN218901387U

CN218901387U - Separation tank for removing mercaptan from coking liquefied gas

Info

Publication number: CN218901387U
Application number: CN202221717789.9U
Authority: CN
Inventors: 王树国; 王兵; 刘洪涛; 冯平平; 宋传伟
Original assignee: Shandong Wantong Petrochemical Group Co ltd
Current assignee: Shandong Wantong Petrochemical Group Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2023-04-25
Anticipated expiration: 2032-07-06

Abstract

The utility model discloses a separation tank for removing mercaptan from coking liquefied gas, which comprises a tank body and a base, wherein a rotating cavity is formed in the base, a servo motor is fixedly connected to the inner wall of the rotating cavity, the output end of the servo motor is fixedly connected with a reciprocating screw rod, the other end of the reciprocating screw rod is rotatably connected to the inner wall of the rotating cavity, a moving block is connected to the reciprocating screw rod in a threaded manner, the upper end face of the moving block is fixedly connected with a connecting rod, and the upper end of the connecting rod penetrates through the upper end face of the base and is fixedly connected with a first toothed plate. According to the utility model, through the cooperation arrangement among the first toothed plate, the second toothed plate and the moving block, the tank body can rotate, so that the solution in the tank body can shake and the solution in the tank body can be fully mixed, further the thiol in the liquefied gas can fully react with the solution in the tank body, and the thiol removal effect of the liquefied gas is improved.

Description

Separation tank for removing mercaptan from coking liquefied gas

Technical Field

The utility model relates to the technical field of liquefied gas separation tanks, in particular to a separation tank for removing mercaptan from coked liquefied gas.

Background

The main components of the coking liquefied gas are C3 and C4 hydrocarbon compounds, and the sulfur content is higher. In recent years, as the capacity of delayed coker units has been expanding, the production of coker liquefied gas has also increased rapidly. Therefore, in order to realize the full and reasonable utilization of the part of coking liquefied gas, sulfides in the coking liquefied gas need to be removed so as to recover propylene with higher economic value and improve the economic benefit of the oil refining process. However, after desulfurization is carried out by the existing mercaptan removal device, the total sulfur content of the coking liquefied gas still reaches 300-400 ppm, the main component is mercaptan, and the mercaptan cannot enter the gas separation device to process and recycle propylene, so that the propylene resource is wasted.

In order to solve the problems, the utility model with publication number of CN213012698U discloses a mercaptan removal unit for coking liquefied gas, which comprises a mercaptan removal part and a desulfurization liquid purification part, wherein the mercaptan removal part comprises a first desulfurization tank and a second desulfurization tank.

However, in the mercaptan removal device for coking liquefied gas, liquefied gas is introduced into the second desulfurization tank through the second air inlet to carry out mercaptan removal treatment, but the liquefied gas is introduced into the second desulfurization tank to be mixed with a solution in the second desulfurization tank and is uneven, so that partial mercaptan in the liquefied gas and the solution in the second desulfurization tank are not fully reacted, the mercaptan in the liquefied gas cannot be fully removed, and the mercaptan removal effect of the liquefied gas is reduced.

In order to solve the problems, we propose a separation tank for removing mercaptan from coked liquefied gas.

Disclosure of Invention

The utility model aims to solve the defects that in a mercaptan removal device for coking liquefied gas in the prior art, liquefied gas is introduced into a second desulfurization tank through a second air inlet to carry out mercaptan removal treatment, but the liquefied gas is introduced into the second desulfurization tank to be mixed with a solution in the second desulfurization tank and is uneven, so that partial mercaptan in the liquefied gas and the solution in the second desulfurization tank are insufficient in reaction, the mercaptan in the liquefied gas cannot be sufficiently removed, and the mercaptan removal effect of the liquefied gas is reduced, thereby providing a separation tank for removing the mercaptan from the coking liquefied gas.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a separation tank is used in thiol desorption of coking liquefied gas, includes a tank body and base, set up in the base and rotate the chamber, fixedly connected with servo motor on the inner wall in rotation chamber, servo motor's output fixedly connected with reciprocating screw, reciprocating screw's the other end rotates to be connected on the inner wall in rotation chamber, threaded connection has the movable block on the reciprocating screw, the up end fixedly connected with connecting rod of movable block, the up end and the first pinion rack of fixedly connected with of up end run through the base of connecting rod, meshing is connected with the second pinion rack on the first pinion rack, second pinion rack fixedly connected on the bottom lateral wall of the tank body.

Preferably, the up end fixedly connected with telescopic link of the jar body, the other end of telescopic link rotates and is connected with the connecting block, the other end fixedly connected with roof of connecting block.

Preferably, the upper end face of the base is symmetrically and fixedly connected with two support rods, and the upper end of each support rod is fixedly connected to the lower end face of the top plate.

Preferably, a sliding hole is formed in the upper end face of the base, the sliding hole is communicated with the rotating cavity, and the connecting rod is slidably connected in the sliding hole.

Preferably, the shape of the second toothed plate is arc-shaped, and four support columns are symmetrically and fixedly connected to the lower end face of the base.

Preferably, one side of the tank body is fixedly connected with a connecting pipe, one end of the connecting pipe penetrates through the side wall of the tank body and is communicated with the inside of the tank body, and the other side of the tank body is fixedly connected with an exhaust pipe.

Compared with the prior art, the utility model has the beneficial effects that: through the cooperation setting between first pinion rack, second pinion rack and the movable block, the jar body can take place to rotate for solution in the jar body takes place to rock the solution intensive mixing in the jar body, and then makes the solution in thiol in the liquefied gas and the jar body fully react, has improved the thiol removal effect of liquefied gas.

Drawings

Fig. 1 is a schematic diagram of the front structure of a separation tank for removing mercaptans from coked liquefied gas.

Fig. 2 is a schematic top view of a platen in a separation tank for removing mercaptans from a coked liquefied gas according to the present utility model.

In the figure: the device comprises a tank body 1, a base 2, a rotating cavity 3, a first toothed plate 4, a second toothed plate 5, a moving block 6, a connecting rod 7, a telescopic rod 8, a connecting block 9, a top plate 10, a supporting rod 11, a servo motor 12, a reciprocating screw rod 13 and a connecting pipe 14.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-2, a separation tank for removing mercaptan from coking liquefied gas comprises a tank body 1 and a base 2, a rotating cavity 3 is formed in the base 2, a servo motor 12 is fixedly connected to the inner wall of the rotating cavity 3, a reciprocating screw rod 13 is fixedly connected to the output end of the servo motor 12, the other end of the reciprocating screw rod 13 is rotationally connected to the inner wall of the rotating cavity 3, a moving block 6 is connected to the reciprocating screw rod 13 in a threaded manner, a connecting rod 7 is fixedly connected to the upper end face of the moving block 6, the upper end of the connecting rod 7 penetrates through the upper end face of the base 2 and is fixedly connected with a first toothed plate 4, a second toothed plate 5 is connected to the first toothed plate 4 in a meshed manner, the second toothed plate 5 is fixedly connected to the side wall of the bottom end of the tank body 1, and through the matched arrangement among the first toothed plate 4, the second toothed plate 5 and the moving block 6, the tank body 1 can rotate, so that solution in the tank body 1 can be fully mixed, the solution in the liquefied gas can fully react with the solution in the tank body 1, and the mercaptan removal effect of liquefied gas can be improved.

Wherein, the up end fixedly connected with telescopic link 8 of jar body 1, the other end rotation of telescopic link 8 is connected with connecting block 9, and the other end fixedly connected with roof 10 of connecting block 9, telescopic link 8 takes place to rotate under jar body 1's drive.

Wherein, the up end symmetry fixed connection of base 2 two bracing pieces 11, the upper end of every bracing piece 11 is all fixed connection on the lower terminal surface of roof 10, and bracing piece 11 has the supporting role to roof 10.

Wherein, offered the slide hole on the up end of base 2, the slide hole is linked together with rotating cavity 3, and connecting rod 7 sliding connection is in the slide hole, and connecting rod 7 can slide at smooth Kong Nazuo right side.

Wherein, the shape of second pinion rack 5 sets up to the arc, and the lower terminal surface symmetry fixedly connected with four support columns of base 2, the support column has the supporting role to the device.

One side of the tank body 1 is fixedly connected with a connecting pipe 14, one end of the connecting pipe 14 penetrates through the side wall of the tank body 1 and is communicated with the interior of the tank body 1, the other side of the tank body 1 is fixedly connected with an exhaust pipe, and liquefied gas is introduced from the connecting pipe 14 and discharged from the exhaust pipe.

In the utility model, when liquefied gas passes through the tank body 1, a servo motor 12 is started, the servo motor 12 drives a reciprocating screw rod 13 to rotate, the reciprocating screw rod 13 drives a moving block 6 to move left and right, the moving block 6 drives a connecting rod 7 to move left and right, the connecting rod 7 drives a first toothed plate 4 to move left and right, and the first toothed plate 4 drives the tank body 1 to rotate left and right through a second toothed plate 5; the tank body 1 rotates to enable the solution in the tank body 1 to shake, so that the liquefied gas and the solution in the tank body 1 are fully mixed, further the thiol in the liquefied gas and the solution in the tank body 1 are fully reacted, and the thiol removal effect of the liquefied gas is improved.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims

1. The utility model provides a knockout drum is used in thiol desorption of coking liquefied gas, includes jar body (1) and base (2), its characterized in that, offer in base (2) and rotate chamber (3), fixedly connected with servo motor (12) on the inner wall in rotation chamber (3), the output fixedly connected with reciprocating screw (13) of servo motor (12), the other end rotation of reciprocating screw (13) is connected on the inner wall in rotation chamber (3), threaded connection has movable block (6) on reciprocating screw (13), the up end fixedly connected with connecting rod (7) of movable block (6), the up end and the fixedly connected with first pinion rack (4) of base (2) are run through to the upper end of connecting rod (7), meshing is connected with second pinion rack (5) on first pinion rack (4), second pinion rack (5) fixedly connected on the bottom lateral wall of jar body (1).

2. The separation tank for removing mercaptan from coking liquefied gas according to claim 1, characterized in that the upper end surface of the tank body (1) is fixedly connected with a telescopic rod (8), the other end of the telescopic rod (8) is rotatably connected with a connecting block (9), and the other end of the connecting block (9) is fixedly connected with a top plate (10).

3. The separation tank for removing mercaptan from coking liquefied gas according to claim 1, wherein the upper end surface of the base (2) is symmetrically and fixedly connected with two support rods (11), and the upper end of each support rod (11) is fixedly connected to the lower end surface of the top plate (10).

4. The separation tank for removing mercaptan from coking liquefied gas according to claim 1, wherein a slide hole is formed in the upper end surface of the base (2), the slide hole is communicated with the rotating cavity (3), and the connecting rod (7) is slidably connected in the slide hole.

5. The separation tank for removing mercaptan from coking liquefied gas according to claim 1, wherein the shape of the second toothed plate (5) is arc-shaped, and four support columns are symmetrically and fixedly connected to the lower end surface of the base (2).

6. The separation tank for removing mercaptan from coking liquefied gas according to claim 1, characterized in that one side of the tank body (1) is fixedly connected with a connecting pipe (14), one end of the connecting pipe (14) penetrates through the side wall of the tank body (1) and is communicated with the inside of the tank body (1), and the other side of the tank body (1) is fixedly connected with an exhaust pipe.