Process device for preparing methyl tert-butyl ether

Abstract

The invention discloses a process device for preparing methyl tert-butyl ether, which comprises a supporting leg, a driving mechanism, a height adjusting mechanism and a liquid changing mechanism, and the top of the supporting leg is fixedly connected with a machine body. When stirring work is needed during production of methyl tert-butyl ether, methanol and isobutene are poured into the machine body, then a splash-proof cover is closed, a motor driving module is controlled through an industrial personal computer, a motor is started at the moment, the motor controls a rotating groove in the top of a rotating shaft to rotate during working, and a stirring plate and an oval disc are synchronously driven to rotate when the rotating groove rotates; when the stirring plate rotates, liquid in the machine body can be stirred, meanwhile, when the oval disc rotates, the oval disc can make contact with the flow pushing plate and extrude the flow pushing plate to enable the spring to be compressed, when the oval disc is separated from the flow pushing plate, the elasticity of the spring recovers, and the liquid at the bottom in the machine body can be pushed to the upper layer; the stirring efficiency reduction caused by excessive bottom methanol accumulation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of methyl tert-butyl ether preparation, in particular to a process device for preparing methyl tert-butyl ether. Background Art

[0002] Methyl tert-butyl ether (MTBE) is an organic compound with the chemical formula C5H12O. It is a colorless, transparent liquid with low toxicity, flammable and explosive properties. It is not easy to volatilize at room temperature, with a boiling point of 104°C and a melting point of -98.5°C. Methyl tert-butyl ether is insoluble in water, but soluble in organic solvents such as ethanol and ether.

[0003] Various equipment is required for the preparation of methyl tert-butyl ether. Among them, two liquid raw materials, isobutylene and methanol, need to be mixed in a reaction container and react chemically under the action of a catalyst to generate methyl tert-butyl ether. However, when the existing stirring device is used to mix the two liquids, since the density of methanol is greater than that of methyl tert-butyl ether, when the two liquids are mixed, methanol is more likely to sink under the methyl tert-butyl ether due to its greater density, resulting in low efficiency of the existing stirring mechanism during stirring. Improvements are needed to address this problem.

[0004] Therefore, it is necessary to design a process device for preparing methyl tert-butyl ether that is highly practical and ensures mixing efficiency. Summary of the invention

[0005] The object of the present invention is to provide a process device for preparing methyl tert-butyl ether to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a process device for preparing methyl tert-butyl ether, comprising a supporting foot, a driving mechanism, a height adjustment mechanism and a liquid changing mechanism, the top of the supporting foot is fixedly connected to an organism, and the top back of the organism is hinged with a splash-proof cover.

[0007] Wherein, the driving mechanism comprises:

[0008] The motor is fixedly connected to the middle of the bottom of the machine body, the motor has an output shaft, the top of the motor output shaft is fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a rotating groove, the left side of the rotating groove is fixedly connected to a stirring plate, the bottom left side of the machine body is fixedly connected to a spring, the end of the spring away from the machine body is fixedly connected to a flow-pushing plate, and the outer side of the motor output shaft is fixedly connected to an elliptical disk.

[0009] According to the above technical solution, the height adjustment mechanism includes a guide column, a telescopic rod, a lifting plate, an adjustment frame 1, a push plate, an adjustment frame 2, a height adjustment plate and an adjustment frame 3. The guide column is fixedly connected to the middle part of the rotating groove, the telescopic rod is fixedly connected to the front side of the bottom of the rotating groove, the lifting plate is fixedly connected to the top of the telescopic rod, the adjustment frame 1 is fixedly connected to the right side of the lifting plate, the push plate is rotatably connected to the middle part of the adjustment frame 1, the adjustment frame 2 is fixedly connected to the right side of the top of the rotating groove, the height adjustment plate is rotatably connected to the middle part of the adjustment frame 2, and the adjustment frame 3 is fixedly connected to the bottom of the height adjustment plate.

[0010] According to the above technical solution, the liquid exchange mechanism includes an extrusion plate, a fixed plate, a water absorption bag, a connecting hose, a water absorption pipe, a connecting pipe, a diversion pipe and a jet outlet, the extrusion plate is fixedly connected to the front side of the lifting plate, the fixed plate is fixedly connected to the top of the front side of the rotating trough, the water absorption bag is fixedly connected to the bottom of the fixed plate, the connecting pipe is fixedly connected to the top of the water absorption bag, the diversion pipe is fixedly connected to the side of the connecting pipe away from the water absorption pipe, and the jet outlet is fixedly connected to the front and back sides of the diversion pipe.

[0011] According to the above technical solution, the top end of the motor output shaft passes through the bottom of the body and extends into the body to be fixedly connected to the rotating groove. A liquid level monitor is provided on the top back of the body. By providing the liquid level monitor, the liquid level inside the body can be monitored.

[0012] According to the above technical solution, the side of the push plate away from the adjusting frame one is rotatably connected to the middle part of the adjusting frame three, so that the push plate can be rotated in the middle part of the adjusting frame three.

[0013] According to the above technical solution, a lifting guide groove is opened in the middle of the lifting plate, and the lifting plate is slidably connected to the guide column through the lifting guide groove, so that the lifting plate can be lifted and slid outside the guide column.

[0014] According to the above technical solution, a lifting groove is opened on the front of the rotating groove, and the front end of the lifting plate passes through the lifting groove and extends to the front of the rotating groove and is fixedly connected to the extrusion plate, so that the lifting plate can synchronously drive the extrusion plate to move.

[0015] According to the above technical solution, a circular groove is opened in the middle of the bottom of the extrusion plate, and the top of the connecting hose passes through the circular groove and extends to the top of the extrusion plate to be fixedly connected to the water absorption bag, so that the liquid sucked in the water absorption pipe can be introduced into the water absorption bag through the connecting hose.

[0016] According to the above technical solution, a one-way valve 1 is arranged on the top of the water suction pipe, and the input end of the one-way valve 1 is at the bottom. A one-way valve 2 is arranged at the interface between the connecting pipe and the diversion pipe, and the input end of the one-way valve 2 is on the left. A fixed block is fixedly connected to the outside of the diversion pipe, and the bottom of the fixed block is fixedly connected to the top of the height adjustment plate. The diversion pipe can be fixed by setting the fixed block.

[0017] According to the above technical solution, the signal output terminal of the liquid level monitor is connected to the signal input terminal of the industrial computer, and the signal output terminal of the industrial computer is connected to the motor drive module and the telescopic rod drive module.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: in the present invention, when stirring is required during the production of methyl tert-butyl ether, methanol and isobutylene are poured into the machine body, and then the splash-proof cover is closed, and the motor drive module is controlled by the industrial computer, and the motor is started at this time. When the motor is working, the rotation of the rotating groove at the top of the rotating shaft is controlled, and the stirring plate and the elliptical disc are synchronously driven to rotate when the rotating groove rotates. When the stirring plate is rotating, the liquid in the machine body can be stirred. At the same time, when the elliptical disc rotates, the elliptical disc can be made to contact the flow-pushing plate and squeeze the flow-pushing plate to compress the spring. When the elliptical disc is separated from the flow-pushing plate, the spring elasticity is restored, and the liquid at the bottom of the machine body can be pushed to the upper layer, so as to avoid excessive accumulation of methanol at the bottom and reduce the stirring efficiency;

[0019] During the stirring operation, the liquid level in the machine body is monitored by the liquid level monitor. When the amount of liquid put in is small, the motor controls the stirring plate on the rotating tank to cooperate with the thrust of the flow-pushing plate to fully stir the methanol and isobutylene put in.

[0020] When the liquid level monitor monitors the liquid in the machine body, when the liquid level in the machine body is high, the industrial computer controls the telescopic rod driving module, and the telescopic rod works at this time. When the telescopic rod works, the lifting plate is controlled to rise. At the same time, when the lifting plate rises, the pushing plate on the adjusting frame 1 pushes the adjusting frame 3 at the bottom of the height adjusting plate, so that the height adjusting plate can rotate in the middle of the adjusting frame 2, and the height adjusting plate can rotate in an arc around the middle of the adjusting frame 2. At the same time, the position of the shunt pipe on the top of the height adjusting plate can be controlled. When the lifting plate moves down, the shunt pipe rotates downward at this time, so that the lifting plate can squeeze the water absorption bag through the extrusion plate. The water absorbing bag is stretched to form a negative pressure state in the water absorbing bag. At this time, the water absorbing bag absorbs the liquid on the outside of the water absorbing pipe through the one-way valve 1 through the connecting hose. Subsequently, when the lifting plate rises, the diverter pipe is rotated upward, and the squeezing plate squeezes the water absorbing bag, so that the liquid in the water absorbing bag is introduced into the diverter pipe through the one-way valve 2 in the connecting pipe, and finally sprayed out through the jet port. When the device is stirring, the liquid with a large methanol content in the bottom layer can be re-extracted and dropped back into the liquid from the top, which can improve the stirring efficiency, avoid the characteristic of methanol that is easy to sink to the bottom due to its large density, and ensure the uniformity during stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the interior of the body of the present invention;

[0024] Figure 3 It is a schematic diagram of the elliptical disk of the present invention;

[0025] Figure 4 This is an exploded schematic diagram of the guide column of the present invention;

[0026] Figure 5 This is a schematic diagram of an explosion at a push plate of the present invention;

[0027] Figure 6 It is a schematic diagram of the connection hose of the present invention;

[0028] Figure 7 yes Figure 6 The enlarged schematic diagram at A in the middle;

[0029] Figure 8 It is a system block diagram of the present invention.

[0030] In the figure: 1. supporting feet; 2. machine body; 3. splash-proof cover; 4. driving mechanism; 401. motor; 402. rotating shaft; 403. rotating trough; 404. stirring plate; 405. spring; 406. push plate; 407. elliptical disc; 5. height adjustment mechanism; 501. guide column; 502. telescopic rod; 504. lifting plate; 505. adjusting frame one; 506. pushing plate; 507. adjusting frame two; 508. height adjustment plate; 509. adjusting frame three; 6. liquid changing mechanism; 601. squeezing plate; 602. fixing plate; 603. water absorption bag; 604. connecting hose; 605. water absorption pipe; 606. connecting pipe; 607. diverter pipe; 608. jet outlet. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-3 The present invention provides a technical solution: a process device for preparing methyl tert-butyl ether, comprising a support leg 1, a driving mechanism 4, a height adjustment mechanism 5 and a liquid replacement mechanism 6, the top of the support leg 1 is fixedly connected to an organism 2, and a splash-proof cover 3 is hinged on the top of the back of the organism 2.

[0033] Wherein, the driving mechanism 4 comprises:

[0034] Motor 401, motor 401 is fixedly connected to the middle of the bottom of the body 2, motor 401 has an output shaft, the top of the output shaft of motor 401 is fixedly connected to a rotating shaft 402, the top of the rotating shaft 402 is fixedly connected to a rotating groove 403, the left side of the rotating groove 403 is fixedly connected to a stirring plate 404, a spring 405 is fixedly connected to the bottom left side of the body 2, the end of the spring 405 away from the body 2 is fixedly connected to a flow-pushing plate 406, and the outer side of the output shaft of motor 401 is fixedly connected to an elliptical disk 407.

[0035] The top end of the output shaft of the motor 401 passes through the bottom of the body 2 and extends into the body 2 to be fixedly connected to the rotating groove 403. A liquid level monitor is provided on the top back of the body 2. By providing the liquid level monitor, the liquid level inside the body 2 can be monitored.

[0036] When stirring is required during the production of methyl tert-butyl ether, methanol and isobutylene are poured into the machine body 2, and then the splash-proof cover 3 is closed. The motor drive module is controlled by the industrial computer, and the motor 401 is started at this time. When working, the motor 401 controls the rotation of the rotating groove 403 at the top of the rotating shaft 402, and synchronously drives the stirring plate 404 and the elliptical disc 407 to rotate when the rotating groove 403 rotates. When the stirring plate 404 rotates, the liquid in the machine body 2 can be stirred. At the same time, when the elliptical disc 407 rotates, the elliptical disc 407 can be made to contact the push plate 406 and squeeze the push plate 406 to compress the spring 405. When the elliptical disc 407 is separated from the push plate 406, the spring 405 recovers its elasticity, and the liquid at the bottom of the machine body 2 can be pushed to the upper layer, so as to avoid excessive accumulation of methanol at the bottom and reduce the stirring efficiency.

[0037] During the stirring operation, the liquid level in the body 2 is monitored by a liquid level monitor. When less liquid is put in, the motor 401 controls the stirring plate 404 on the rotating tank 403 to cooperate with the thrust of the flow-pushing plate 406 to fully stir the methanol and isobutylene put in.

[0038] See also Figure 4-8 The present invention provides a technical solution: the height adjustment mechanism 5 includes a guide column 501, a telescopic rod 502, a lifting plate 504, an adjustment frame 1 505, a push plate 506, an adjustment frame 2 507, a height adjustment plate 508 and an adjustment frame 3 509. The guide column 501 is fixedly connected to the middle part of the rotating groove 403, the telescopic rod 502 is fixedly connected to the front side of the bottom of the rotating groove 403, the lifting plate 504 is fixedly connected to the top of the telescopic rod 502, the adjustment frame 1 505 is fixedly connected to the right side of the lifting plate 504, the push plate 506 is rotatably connected to the middle part of the adjustment frame 1 505, the adjustment frame 2 507 is fixedly connected to the right side of the top of the rotating groove 403, the height adjustment plate 508 is rotatably connected to the middle part of the adjustment frame 2 507, and the adjustment frame 3 509 is fixedly connected to the bottom of the height adjustment plate 508.

[0039] The liquid replacement mechanism 6 includes a squeeze plate 601, a fixed plate 602, a water absorption bag 603, a connecting hose 604, a water absorption pipe 605, a connecting pipe 606, a shunt pipe 607 and a jet outlet 608. The squeeze plate 601 is fixedly connected to the front of the lifting plate 504, the fixed plate 602 is fixedly connected to the top of the front of the rotating tank 403, the water absorption bag 603 is fixedly connected to the bottom of the fixed plate 602, the connecting pipe 606 is fixedly connected to the top of the water absorption bag 603, the shunt pipe 607 is fixedly connected to the side of the connecting pipe 606 away from the water absorption pipe 605, and the jet outlet 608 is fixedly connected to the front and back of the shunt pipe 607;

[0040] The push plate 506 is rotatably connected to the middle part of the adjustment frame 3 509 at one side away from the adjustment frame 1 505 , so that the push plate 506 can rotate in the middle part of the adjustment frame 3 509 .

[0041] A lifting guide groove is provided in the middle of the lifting plate 504 , and the lifting plate 504 is slidably connected to the guide column 501 through the lifting guide groove, so that the lifting plate 504 can be lifted and slid outside the guide column 501 .

[0042] A lifting slot is provided on the front of the rotating slot 403 , and the front end of the lifting plate 504 penetrates the lifting slot and extends to the front of the rotating slot 403 and is fixedly connected to the extrusion plate 601 , so that the lifting plate 504 can synchronously drive the extrusion plate 601 to move.

[0043] A circular groove is provided in the middle of the bottom of the squeezing plate 601 , and the top of the connecting hose 604 passes through the circular groove and extends to the top of the squeezing plate 601 to be fixedly connected to the water absorption bag 603 , so that the liquid sucked in the water absorption pipe 605 can be introduced into the water absorption bag 603 through the connecting hose 604 .

[0044] A one-way valve 1 is arranged at the top of the suction pipe 605, and the input end of the one-way valve 1 is at the bottom. A one-way valve 2 is arranged at the interface between the connecting pipe 606 and the diversion pipe 607, and the input end of the one-way valve 2 is on the left side. A fixed block is fixedly connected to the outside of the diversion pipe 607, and the bottom of the fixed block is fixedly connected to the top of the height adjustment plate 508. The diversion pipe 607 can be fixed by setting the fixed block.

[0045] The signal output terminal of the liquid level monitor is connected to the signal input terminal of the industrial computer, and the signal output terminal of the industrial computer is connected to the motor drive module and the telescopic rod drive module.

[0046] When the liquid level monitor monitors the liquid in the body 2, when the liquid level in the body 2 is high, the industrial computer controls the telescopic rod driving module, and the telescopic rod 502 works at this time. The telescopic rod 502 controls the lifting plate 504 to rise when working. At the same time, when the lifting plate 504 rises, the pushing plate 506 on the adjusting frame 1 505 pushes the adjusting frame 3 509 at the bottom of the height adjustment plate 508, so that the height adjustment plate 508 can rotate in the middle of the adjusting frame 2 507, so that the height adjustment plate 508 rotates in an arc around the middle of the adjusting frame 2 507. At the same time, the position of the shunt pipe 607 on the top of the height adjustment plate 508 can be controlled. When the lifting plate 504 moves down, the shunt pipe 607 rotates downward at this time, so that the lifting plate 504 passes through the extrusion plate 6 01 stretches the water absorbing bag 603 to form a negative pressure state in the water absorbing bag 603. At this time, the water absorbing bag 603 absorbs the liquid on the outside of the water absorbing tube 605 through the one-way valve 1 through the connecting hose 604. Then, when the lifting plate 504 rises, the diverter tube 607 rotates upward, and the squeezing plate 601 squeezes the water absorbing bag 603, so that the liquid in the water absorbing bag 603 is introduced into the diverter tube 607 through the one-way valve 2 in the connecting tube 606, and finally sprayed out through the jet port 608. When the device is stirring, the liquid with a higher methanol content in the bottom layer can be re-extracted and dropped back into the liquid from the top, which can improve the stirring efficiency, avoid the characteristic that methanol is easy to sink to the bottom due to its high density, and ensure the uniformity during stirring.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A process for preparing methyl tert-butyl ether, characterized in that: It comprises a support foot (1), a driving mechanism (4), a height adjustment mechanism (5) and a liquid replacement mechanism (6); the top of the support foot (1) is fixedly connected to a body (2); the top of the back of the body (2) is hingedly connected to a splash-proof cover (3); Wherein, the driving mechanism (4) comprises: The motor (401) is fixedly connected to the middle of the bottom of the machine body (2). The motor (401) has an output shaft. The top of the output shaft of the motor (401) is fixedly connected to a rotating shaft (402). The top of the rotating shaft (402) is fixedly connected to a rotating groove (403). The left side of the rotating groove (403) is fixedly connected to a stirring plate (404). The left bottom of the machine body (2) is fixedly connected to a spring (405). The end of the spring (405) away from the machine body (2) is fixedly connected to a flow-pushing plate (406). The outer side of the output shaft of the motor (401) is fixedly connected to an elliptical disk (407).

2. A process for preparing methyl tert-butyl ether according to claim 1, characterized in that: The height adjustment mechanism (5) comprises a guide column (501), a telescopic rod (502), a lifting plate (504), an adjustment frame 1 (505), a push plate (506), an adjustment frame 2 (507), a height adjustment plate (508) and an adjustment frame 3 (509), wherein the guide column (501) is fixedly connected to the middle part of the rotating groove (403), the telescopic rod (502) is fixedly connected to the front side of the bottom of the rotating groove (403), and the lifting plate (504) is fixedly connected to the middle part of the rotating groove (403). The adjusting frame (505) is fixedly connected to the top of the telescopic rod (502), the adjusting frame (505) is fixedly connected to the right side of the lifting plate (504), the pushing plate (506) is rotatably connected to the middle part of the adjusting frame (505), the adjusting frame (507) is fixedly connected to the right side of the top of the rotating groove (403), the height adjustment plate (508) is rotatably connected to the middle part of the adjusting frame (507), and the adjusting frame (509) is fixedly connected to the bottom of the height adjustment plate (508).

3. A process for preparing methyl tert-butyl ether according to claim 2, characterized in that: The liquid replacement mechanism (6) comprises an extrusion plate (601), a fixed plate (602), a water absorption bag (603), a connecting hose (604), a water absorption pipe (605), a connecting pipe (606), a shunt pipe (607) and a jet outlet (608), wherein the extrusion plate (601) is fixedly connected to the front of the lifting plate (504), the fixed plate (602) is fixedly connected to the top of the front of the rotating tank (403), the water absorption bag (603) is fixedly connected to the bottom of the fixed plate (602), the connecting pipe (606) is fixedly connected to the top of the water absorption bag (603), the shunt pipe (607) is fixedly connected to the side of the connecting pipe (606) away from the water absorption pipe (605), and the jet outlet (608) is fixedly connected to the front and back of the shunt pipe (607).

4. A process for preparing methyl tert-butyl ether according to claim 3, characterized in that: The top end of the output shaft of the motor (401) passes through the bottom of the machine body (2) and extends into the machine body (2) to be fixedly connected to the rotating groove (403). A liquid level monitor is arranged on the top of the back side of the machine body (2).

5. A process for preparing methyl tert-butyl ether according to claim 4, characterized in that: The push plate (506) is rotatably connected to the middle part of the adjustment frame 3 (509) at one side away from the adjustment frame 1 (505).

6. A process for preparing methyl tert-butyl ether according to claim 5, characterized in that: A lifting guide groove is provided in the middle of the lifting plate (504), and the lifting plate (504) is slidably connected to the guide column (501) via the lifting guide groove.

7. A process for preparing methyl tert-butyl ether according to claim 6, characterized in that: The front side of the rotating groove (403) is provided with a lifting groove, and the front end of the lifting plate (504) penetrates the lifting groove and extends to the front side of the rotating groove (403) to be fixedly connected with the extrusion plate (601).

8. A process for preparing methyl tert-butyl ether according to claim 7, characterized in that: A circular groove is provided in the middle of the bottom of the squeezing plate (601), and the top end of the connecting hose (604) passes through the circular groove and extends to the top of the squeezing plate (601) to be fixedly connected to the water absorbing bag (603).

9. A process for preparing methyl tert-butyl ether according to claim 8, characterized in that: A one-way valve 1 is arranged at the top of the water suction pipe (605), and the input end of the one-way valve 1 is at the bottom. A one-way valve 2 is arranged at the interface between the connecting pipe (606) and the diverter pipe (607), and the input end of the one-way valve 2 is at the left side. A fixed block is fixedly connected to the outside of the diverter pipe (607), and the bottom of the fixed block is fixedly connected to the top of the height adjustment plate (508).

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