Distillation tower for producing methyl methacrylate

Abstract

The utility model discloses a distillation tower for methyl methacrylate production, which comprises a distillation tower body, the bottom end of the inner wall of the distillation tower body is rotatably connected with a rotating rod in a penetrating manner, the outer side wall of the rotating rod is vertically and fixedly connected with a plurality of separation discs, the bottom end of the inner wall of each separation disc is provided with a through hole, and the bottom end of the inner wall of each separation disc is provided with a through hole. Partition plates are arranged on the side walls of the edges of the through holes in a surrounding mode, all the layers of through holes are formed in a left-right staggered mode, and a stirring assembly is arranged above each layer of partition plate. During use, steam is discharged to the air outlet through the through holes which are formed between the layers in a staggered mode, due to the fact that the through holes are small and the steam is blocked by the separation plates of the layers when being discharged upwards, the staying time of the steam at the separation plates of the layers is prolonged, and the steam can fully react; and the solution in the separation disc is stirred by the stirring plate, so that the solution is fully exposed in the steam, the contact area of the solution and the steam is increased, and the distillation efficiency can be accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of methyl methacrylate production equipment, in particular to a distillation tower for methyl methacrylate production. Background Art

[0002] Methyl methacrylate (MMA), also known as methyl methacrylate, is an organic compound. It is an important chemical raw material and a monomer in the production of transparent plastic polymethyl methacrylate (PMMA). It is flammable, has a strong pungent odor, and is moderately toxic, reproductively toxic, and teratogenic. Long-term exposure should be avoided.

[0003] Traditional distillation towers evaporate and separate low-boiling-point components in the solution by introducing steam into the tower to contact the solution. However, the contact efficiency between the steam and the solution in the tower is low, resulting in slow evaporation efficiency. In addition, the contact time between the steam and the solution is short, making the evaporation separation insufficient. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the objectives of the present invention is to provide a distillation tower for the production of methyl methacrylate. Through the provided distillation tower body and partition plates, when in use, steam is discharged to the air outlet through the through holes staggered between each layer. Because the through holes are small and the steam is blocked by the partition plates of each layer when discharged upward, the time the steam stays in each layer of the partition plates is increased, allowing it to fully react and improve the efficiency of evaporation separation; through the provided drive device, gears, rotating rods, and stirring components, the solution in the partition plates is stirred by the stirring plates, so that the solution is fully exposed to the steam, increasing the contact area between the solution and the steam, thereby accelerating the distillation efficiency.

[0005] One of the objectives of the utility model is achieved by the following technical solution: a distillation tower for the production of methyl methacrylate, comprising: a distillation tower body, the bottom end of the distillation tower body is fixedly connected to a support frame, the top of the distillation tower body is provided with an air outlet, the upper side wall of the distillation tower body is penetrated by a liquid inlet pipe, the lower side wall of the distillation tower body is penetrated by an air inlet pipe, the bottom end of the inner wall of the distillation tower body is penetrated by a rotating rod rotatably connected, the outer side wall of the rotating rod is vertically fixed to a plurality of separating plates, the bottom end of the inner wall of the separating plates is provided with a through hole, the edge side walls of the through holes are surrounded by partitions, the through holes in each layer are staggered in the left and right, a stirring assembly is provided above each layer of the separating plates, the bottom end of the rotating rod is fixedly connected to a slave gear, the inner side wall of the support frame is fixedly connected to a mounting plate, and the mounting plate is provided with a driving device that drives the slave gear to rotate. Through the provided distillation tower body and partition plates, when in use, the steam is discharged to the air outlet through the through holes staggered between each layer. Because the through holes are small and the steam is blocked by the partition plates of each layer when discharged upward, the time the steam stays at each layer of the partition plates is increased, so that it can fully react and improve the efficiency of evaporation separation; through the provided driving device, gears, rotating rods, and stirring components, the solution in the partition plates is stirred by the stirring plates, so that the solution is fully exposed to the steam, increasing the contact area between the solution and the steam, thereby accelerating the distillation efficiency.

[0006] According to the distillation tower for producing methyl methacrylate, the stirring assembly includes a connecting plate, the bottom end of each connecting plate is fixedly connected to a stirring plate, and the side walls of each stirring plate are provided with flow holes.

[0007] According to the distillation tower for producing methyl methacrylate, the side walls of the connecting plates are fixedly connected to the inner side walls of the distillation tower body.

[0008] A distillation tower for producing methyl methacrylate is provided, wherein the bottom end of the distillation tower body is connected through with a liquid discharge pipe.

[0009] According to the distillation tower for producing methyl methacrylate, the driving device includes a motor, an output end of the motor is fixedly connected to a main gear, and a side wall of the main gear is meshedly connected to a side wall of a slave gear.

[0010] According to the distillation tower for producing methyl methacrylate, the bottom end of the motor is fixedly connected to the upper surface of the mounting plate.

[0011] According to the distillation tower for producing methyl methacrylate, the outer sidewalls of the separation plates are in contact with the inner sidewalls of the distillation tower body.

[0012] According to the distillation tower for producing methyl methacrylate, the stirring plate and the partition plate are far away from each other.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a three-dimensional diagram of a distillation tower for producing methyl methacrylate according to the present invention;

[0016] Figure 2 This is a cross-sectional view of a distillation tower for producing methyl methacrylate according to the present invention;

[0017] Figure 3 This is a partial structural diagram of a distillation tower for producing methyl methacrylate according to the present invention;

[0018] Figure 4 This is a three-dimensional diagram of a stirring assembly of a distillation tower for producing methyl methacrylate according to the present invention.

[0019] Legend:

[0020] 1. Distillation tower body; 2. Support frame; 3. Liquid inlet pipe; 4. Air inlet pipe; 5. Mounting plate; 6. Driving device; 7. Slave gear; 8. Rotating rod; 9. Separating plate; 10. Stirring assembly; 11. Liquid discharge pipe; 101. Air outlet; 601. Motor; 602. Main gear; 901. Through hole; 902. Partition; 1001. Connecting plate; 1002. Stirring plate; 1003. Through hole. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] Reference Figure 1-4The present invention provides a distillation tower for producing methyl methacrylate, which comprises: a distillation tower body 1, a support frame 2 fixedly connected to the bottom end of the distillation tower body 1, an air outlet 101 opened at the top of the distillation tower body 1, a liquid inlet pipe 3 penetratingly connected to the upper side wall of the distillation tower body 1, a liquid discharge pipe 11 penetratingly connected to the bottom end of the distillation tower body 1, an air inlet pipe 4 penetratingly connected to the lower side wall of the distillation tower body 1, a rotating rod 8 penetratingly connected to the bottom end of the inner wall of the distillation tower body 1, and an outer wall of the rotating rod 8 vertically extending from the bottom end of the inner wall of the distillation tower body 1. Several separator plates 9 are fixedly connected, and the outer side walls of the separator plates 9 are all in contact with the inner side walls of the distillation tower body 1. The bottom ends of the inner walls of the separator plates 9 are provided with through holes 901. The edge side walls of the through holes 901 are surrounded by partitions 902. The through holes 901 on each layer are arranged in a staggered manner. A stirring assembly 10 is provided above each layer of the separator plates 9. The bottom end of the rotating rod 8 is fixedly connected to the slave gear 7. The inner side wall of the support frame 2 is fixedly connected to the mounting plate 5. The mounting plate 5 is provided with a driving device 6 for driving the slave gear 7.

[0023] The driving device 6 includes a motor 601. The bottom end of the motor 601 is fixedly connected to the upper surface of the mounting plate 5. The output end of the motor 601 is fixedly connected to the main gear 602. The side wall of the main gear 602 is meshed with the side wall of the slave gear 7.

[0024] The stirring assembly 10 includes a connecting plate 1001, the side walls of which are fixedly connected to the inner side walls of the distillation tower body 1. The bottom ends of the connecting plates 1001 are fixedly connected to stirring plates 1002, which are spaced apart from the partitions 902. The side walls of the stirring plates 1002 are each provided with flow holes 1003. With the distillation tower body 1 and the partition plates 9 provided, during use, solution is poured into the tower through the liquid inlet pipe 3. Once the upper partition plate 9 is full, excess solution flows through the through holes 901 into the next layer of partition plates 9, until the bottom layer of partition plates 9 is filled. Excess solution is then discharged through the liquid drain pipe 11. Next, steam enters the tower through the air inlet pipe 4 and is discharged to the air outlet 101 through the through holes 901 staggered between each layer. Because the through holes 901 are relatively small and the steam is blocked by the partition plates 9 on each layer as it is discharged upward, the steam spends more time at each layer of partition plates 9. It can fully react and improve the efficiency of evaporation and separation; through the provided driving device 6, slave gear 7, rotating rod 8, and stirring assembly 10, when the steam enters the tower, the motor 601 is started to drive the main gear 602 to rotate, driving the slave gear 7 engaged with it to rotate, and then driving the rotating rod 8 and the separation plate 9 to rotate. At the same time as the separation plate 9 rotates, because the stirring assembly 10 is fixed to the inner wall of the tower body, the solution in the separation plate 9 is stirred by the stirring plate 1002, so that the solution is fully exposed to the steam, increasing the contact area between the solution and the steam, thereby accelerating the distillation efficiency.

[0025] Working principle: When in use, the solution is poured into the tower through the liquid inlet pipe 3. After the upper separation plate 9 is full, the excess solution enters the next separation plate 9 through the through hole 901, until the separation plate 9 on the bottom layer is full, and the excess solution is discharged from the drain pipe 11. Next, the steam enters the tower through the air inlet pipe 4 and is discharged to the air outlet 101 through the through holes 901 staggered between the layers. Because the through holes 901 are small and the steam is blocked by the separation plates 9 on each layer when it is discharged upward, the steam stays at each separation plate 9 for a longer time, so that it can fully react and improve the efficiency of evaporation separation. At the same time as the steam enters the tower, the motor 601 is started to drive the main gear 602 to rotate, driving the meshed gear 7 to rotate, and then driving the rotating rod 8 and the separation plate 9 to rotate. At the same time as the separation plate 9 rotates, the stirring assembly 10 is fixed to the inner wall of the tower body, and the solution in the separation plate 9 is stirred by the stirring plate 1002, so that the solution is fully exposed to the steam, thereby increasing the contact area between the solution and the steam.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A distillation tower for producing methyl methacrylate, comprising: A distillation tower body (1) is characterized in that a support frame (2) is fixedly connected to the bottom end of the distillation tower body (1), an air outlet (101) is opened at the top end of the distillation tower body (1), a liquid inlet pipe (3) is connected through the upper side wall of the distillation tower body (1), an air inlet pipe (4) is connected through the lower side wall of the distillation tower body (1), a rotating rod (8) is rotatably connected to the bottom end of the inner wall of the distillation tower body (1), and a plurality of partition plates (9) are vertically fixed to the outer side wall of the rotating rod (8). The bottom end of the inner wall of the separation plate (9) is provided with a through hole (901), and the edge side walls of the through hole (901) are surrounded by a partition (902). The through holes (901) of each layer are arranged in a left-right staggered manner. A stirring assembly (10) is provided above each layer of the separation plate (9). The bottom end of the rotating rod (8) is fixedly connected to a slave gear (7). The inner side wall of the support frame (2) is fixedly connected to a mounting plate (5), and the mounting plate (5) is provided with a driving device (6) for driving the slave gear (7) to rotate.

2. A distillation tower for methyl methacrylate production according to claim 1, characterized in that: The stirring assembly (10) comprises a connecting plate (1001), the bottom end of each connecting plate (1001) is fixedly connected to a stirring plate (1002), and the side walls of each stirring plate (1002) are provided with flow holes (1003).

3. A distillation tower for methyl methacrylate production according to claim 2, characterized in that: The side walls of the connecting plate (1001) are fixedly connected to the inner side walls of the distillation tower body (1).

4. A distillation tower for methyl methacrylate production according to claim 1, characterized in that: The bottom end of the distillation tower body (1) is connected through a liquid discharge pipe (11).

5. A distillation tower for producing methyl methacrylate according to claim 1, characterized in that: The driving device (6) comprises a motor (601), the output end of the motor (601) is fixedly connected to a main gear (602), and the side wall of the main gear (602) is meshedly connected with the side wall of the slave gear (7).

6. A distillation tower for producing methyl methacrylate according to claim 5, characterized in that: The bottom end of the motor (601) is fixedly connected to the upper surface of the mounting plate (5).

7. A distillation tower for producing methyl methacrylate according to claim 1, characterized in that: The outer side walls of the separation disk (9) are in contact with the inner side walls of the distillation tower body (1).

8. A distillation tower for producing methyl methacrylate according to claim 2, characterized in that: The stirring plate (1002) and the partition (902) are spaced apart from each other.

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