CN218692048U

CN218692048U - Washing device for preparing high-purity isobutene through MTBE (methyl tert-butyl ether) cracking

Info

Publication number: CN218692048U
Application number: CN202223167252.2U
Authority: CN
Inventors: 宋凯; 刘福元
Original assignee: Zhonghaojian Energy Technology Shandong Co ltd
Current assignee: Zhonghaojian Energy Technology Shandong Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-24
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to the technical field of isobutene, specifically be a washing unit of high-purity isobutene is prepared in MTBE schizolysis, including the cracker, the washing tower and take off heavy tower, the cracker, the washing tower loops through the pipeline intercommunication with taking off heavy tower, the inside upside fixedly connected with branch workbin of washing tower, pipeline and the inside intercommunication of dividing the workbin on the cracker, the bottom of dividing the workbin evenly is provided with a plurality of blanking holes, the inside connection of washing tower has water spray mechanism, water spray mechanism includes the runner, the runner rotates with the washing tower to be connected, the top of runner extends to the washing tower upside, the outside of runner evenly communicates has a plurality of spray pipes, the top intercommunication of a plurality of spray pipes has a plurality of shower heads, the outside bottom side fixedly connected with a plurality of stirring boards of runner, the bottom fixedly connected with motor of washing tower, the output of motor and the bottom fixed connection of runner; the washing device improves the uniformity and effect of washing the isobutene material, and improves the practicability of the washing device.

Description

Washing device for preparing high-purity isobutene through MTBE (methyl tert-butyl ether) cracking

Technical Field

The utility model relates to an isobutene technical field specifically is a washing unit of high-purity isobutene is prepared in MTBE schizolysis.

Background

Methyl tert-butyl ether is an important chemical raw material, high-purity isobutene can be prepared by cracking, methanol is required to be washed by a spraying mode by utilizing the property that the methanol is easily dissolved in water in the production process, and the washing process of the isobutene is usually carried out in a washing tower.

Through search, the utility model with Chinese patent No. 202122054146.2 discloses a washing device for preparing high-purity isobutene by MTBE cracking, which comprises a cracker, a washing tower and a de-weighting tower, wherein the cracker, the washing tower and the de-weighting tower are communicated in sequence through pipelines, when in use, a user adds materials into the cracker through a feed pipe, the materials in the cracker enter the washing tower along the pipelines after reaction, the user opens a water pump and a motor, the water pump enables water to pass through a water inlet pipe, a vertical pipe and a corrugated hose and finally be sprayed out by a spray head, the output shaft of the motor rotates to drive the vertical pipe to rotate through a second bevel gear and a first bevel gear, the vertical pipe rotates to drive a fixed plate to rotate, the fixed plate rotates to drive a third bevel gear to rotate along the longitudinal central line of the vertical pipe through a reciprocating screw rod, and the spray head can be driven to rotate through a first connecting plate, the bevel gear and a connecting rod, the third bevel gear rotates along the longitudinal central line of the vertical pipe to drive the reciprocating screw rod to rotate along the central line of the third bevel gear, so as to drive the reciprocating screw nut to reciprocate along the reciprocating screw rod, the reciprocating screw nut can drive the rack to reciprocate through the second connecting plate and the L-shaped rod, so as to drive the bevel gear to reciprocate, the bevel gear can drive the spray head to reciprocate through the connecting rod, so that the spray head can reciprocate while rotating along the central line of the vertical pipe, so as to increase the spraying range of the spray head, so that methanol in the material is dissolved in water, the material enters the de-weighting tower along the pipeline, is treated by the de-weighting tower and then is discharged along the discharge pipe, the material enters the interior of the water washing tower through the pipeline, the material entering the interior of the water washing tower flows to the interior of the water washing tower in a columnar shape, and the water is uniformly sprayed on the material in the water washing tower through the rotation and the swing of the spray head, the material is at the in-process that flows to the washing tower inside from the pipeline inside, and the area of material and water contact is less, leads to relatively poorly to the effect of material washing.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a washing device of high-purity isobutene is prepared in MTBE schizolysis to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a washing device for preparing high-purity isobutene through MTBE cracking comprises a cracker, a washing tower and a de-weighting tower, wherein the cracker, the washing tower and the de-weighting tower are sequentially communicated through pipelines, a material distribution box is fixedly connected to the upper side inside the washing tower, the pipeline on the cracker is communicated with the inside of the material distribution box, a plurality of blanking holes are uniformly formed in the bottom end of the material distribution box, and a water spraying mechanism is connected inside the washing tower;

the water spray mechanism comprises a rotating pipe, the rotating pipe is connected with the water washing tower in a rotating mode, the top end of the rotating pipe extends to the upper side of the water washing tower, a plurality of water spray pipes are evenly communicated with the outside of the rotating pipe, a plurality of spray heads are communicated with the top ends of the water spray pipes, a plurality of stirring plates are fixedly connected to the bottom side of the outside of the rotating pipe, a motor is fixedly connected to the bottom end of the water washing tower, and the output end of the motor is fixedly connected with the bottom end of the rotating pipe.

In order to facilitate the conveying of external water to the inside of the rotating pipe, the top end of the rotating pipe is communicated with a rotary joint, and the top end of the rotary joint is connected with a water inlet pipe.

In order to facilitate observation of the washing condition inside the washing tower, a transparent baffle is arranged at the front end of the washing tower.

In order to facilitate the discharge of water in the water washing tower, the bottom side of the side end of the water washing tower is communicated with a water outlet pipe, and a valve is arranged on the water outlet pipe.

In order to add the MTBE materials into the cracker, a feeding pipe is communicated with the upper side of the side end of the cracker.

In order to facilitate the discharge of the isobutene treated by the de-heavy tower, a discharge pipe is connected to the side end of the de-heavy tower.

Compared with the prior art, the utility model provides a washing unit of high-purity isobutene is prepared in MTBE schizolysis possesses following beneficial effect:

this washing device of high-purity isobutene is prepared in MTBE schizolysis, the isobutene of preparing in the inside schizolysis of cracker passes through the pipeline and enters into the inside to dividing the workbin, and evenly fall to the inside of washing tower through a plurality of blanking holes on dividing the workbin, carry to the inside water of commentaries on classics pipe and a plurality of distributive pipe and upwards spray through a plurality of shower heads, drive the commentaries on classics pipe through the motor simultaneously, a plurality of distributive pipes and a plurality of stirring board rotate, make water evenly spray on the isobutene material that falls down from a plurality of blanking holes, stir water and material through a plurality of stirring boards simultaneously, make water and isobutene material intensive mixing, the homogeneity and the effect to isobutene material washing have been improved, the practicality of its use has been improved.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of a portion of the enlarged structure of FIG. 1;

fig. 4 is a schematic diagram of a partial enlarged structure at B in fig. 1 according to the present invention.

In the figure: 1. a cracker; 2. washing the tower with water; 3. a de-weighting tower; 4. a pipeline; 5. a material distributing box; 6. a blanking hole; 7. pipe rotation; 8. a water spray pipe; 9. a shower head; 10. a stirring plate; 11. a motor; 12. a rotary joint; 13. a water inlet pipe; 14. a transparent baffle; 15. a water outlet pipe; 16. a valve; 17. a feed tube; 18. and (4) discharging the pipe.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in fig. 1-4, a water washing device for preparing high-purity isobutene by MTBE cracking comprises a cracker 1, a water washing tower 2 and a de-weighting tower 3, wherein the cracker 1 and the de-weighting tower 3 are both existing known devices, and the structure and the working principle thereof are not described in detail herein, the cracker 1, the water washing tower 2 and the de-weighting tower 3 are sequentially communicated through a pipeline 4, a feed pipe 17 is communicated with the upper side of the side end of the cracker 1 for adding MTBE materials into the cracker 1, a discharge pipe 18 is connected with the side end of the de-weighting tower 3 for discharging isobutene treated by the de-weighting tower 3, a water outlet pipe 15 is communicated with the bottom side of the side end of the water washing tower 2, a valve 16 is arranged on the water outlet pipe 15 for discharging water in the water washing tower 2, a transparent baffle plate 14 is arranged at the front end of the water washing tower 2, the washing condition in the washing tower 2 can be conveniently observed, the upper side in the washing tower 2 is fixedly connected with a material distribution box 5, a pipeline 4 on the cracker 1 is communicated with the inside of the material distribution box 5, a plurality of blanking holes 6 are uniformly formed in the bottom end of the material distribution box 5, a water spraying mechanism is connected in the washing tower 2, isobutene prepared by cracking in the cracker 1 enters the material distribution box 5 through the pipeline 4 and uniformly falls into the washing tower 2 through the blanking holes 6 in the material distribution box 5, and water conveyed to the rotating pipe 7 and the water distribution pipes is upwards sprayed through a plurality of spray heads 9, so that the water is uniformly sprayed on isobutene materials falling from the blanking holes 6, and the methanol on the isobutene is fully purified and washed by the water;

as shown in fig. 1 and 4, the water spray mechanism includes the runner 7, the runner 7 rotates with the washing tower 2 to be connected, the top of runner 7 extends to the 2 upside of washing tower, the top intercommunication of runner 7 has rotary joint 12, the top of rotary joint 12 is connected with inlet tube 13, be convenient for make outside water carry to the inside of runner 7, the even intercommunication in outside of runner 7 has a plurality of spray pipes 8, the top intercommunication of a plurality of spray pipes 8 has a plurality of showers 9, a plurality of stirring boards 10 of outside bottom side fixedly connected with of runner 7, the bottom fixedly connected with motor 11 of washing tower 2, the output of motor 11 and the bottom fixed connection of runner 7, drive runner 7 through motor 11, a plurality of distributive pipes and a plurality of stirring boards 10 rotate, make water evenly spray on the isobutene material that falls from a plurality of blanking holes 6, stir water and material through a plurality of stirring boards 10 simultaneously, make water and isobutene material intensive mixing, the homogeneity and the effect to isobutene material water have been improved, the practicality of its use has been improved.

In conclusion, when the high-purity isobutene is prepared by cracking the MTBE, the MTBE material is added into the cracker 1 through the feeding pipe 17, the MTBE material is cracked inside the cracker 1, the cracked isobutene enters the distributing box 5 through the pipeline 4, and uniformly falls into the washing tower 2 through the plurality of blanking holes 6 on the distributing box 5, the water conveyed to the rotating pipe 7 and the plurality of distributing pipes is upwards sprayed through the plurality of spraying heads 9, the rotating pipe 7, the plurality of distributing pipes and the plurality of stirring plates 10 are driven to rotate through the motor 11, the water is uniformly sprayed on the isobutene material falling from the plurality of blanking holes 6, the water and the material are stirred through the plurality of stirring plates 10, the water and the isobutene material are fully mixed and the isobutene is fully washed, the washed isobutene material flows into the de-weighting tower 3 through the pipeline 4, and the treated isobutene inside the de-weighting tower 3 is discharged through the discharging pipe 18.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a washing unit of high-purity isobutene is prepared in MTBE schizolysis, includes cracker (1), washing tower (2) and takes off heavy tower (3), and cracker (1), washing tower (2) and take off heavy tower (3) loop through pipeline (4) intercommunication, its characterized in that: the upper side in the washing tower (2) is fixedly connected with a material distribution box (5), a pipeline (4) on the cracker (1) is communicated with the interior of the material distribution box (5), a plurality of blanking holes (6) are uniformly formed in the bottom end of the material distribution box (5), and a water spraying mechanism is connected in the washing tower (2);

the water spray mechanism comprises a rotating pipe (7), the rotating pipe (7) is connected with the water washing tower (2) in a rotating mode, the top end of the rotating pipe (7) extends to the upper side of the water washing tower (2), the outside of the rotating pipe (7) is uniformly communicated with a plurality of water spray pipes (8), the top ends of the water spray pipes (8) are communicated with a plurality of spray headers (9), the outside bottom side of the rotating pipe (7) is fixedly connected with a plurality of stirring plates (10), the bottom end of the water washing tower (2) is fixedly connected with a motor (11), and the output end of the motor (11) is fixedly connected with the bottom end of the rotating pipe (7).

2. The water washing device for preparing high-purity isobutene through MTBE cracking according to claim 1, is characterized in that: the top of revolving tube (7) communicates has rotary joint (12), and the top of rotary joint (12) is connected with inlet tube (13).

3. The water washing device for preparing high-purity isobutene through MTBE cracking according to claim 2, is characterized in that: and a transparent baffle (14) is arranged at the front end of the water washing tower (2).

4. The water washing device for preparing high-purity isobutene through MTBE cracking according to claim 3, is characterized in that: the bottom side of the side end of the water washing tower (2) is communicated with a water outlet pipe (15), and a valve (16) is arranged on the water outlet pipe (15).

5. The water washing device for preparing high-purity isobutene through MTBE cracking according to claim 4, is characterized in that: the upper side of the side end of the cracker (1) is communicated with a feeding pipe (17).

6. The water washing device for preparing high-purity isobutene through MTBE cracking according to claim 5, is characterized in that: the side end of the de-weighting tower (3) is connected with a discharge pipe (18).