Methanol recovery device

Abstract

The utility model discloses a methanol recovery device which comprises a methanol recovery tower, a feeding pretreatment assembly is arranged on the right side of the methanol recovery tower, and the feeding pretreatment assembly comprises a tower body, a steam discharge pipe, a temperature sensor, an annular seat, a through groove, a feeding pipe, a liquid supply pipe, an inverted concave sealing base, a liquid supply pump, a liquid pumping pipe, an electric valve and a stirring assembly. The tower body comprises an outer tower body and a heat conduction lining. According to the methanol recovery device disclosed by the utility model, low-boiling-point impurities are removed through simple distillation by virtue of the arranged feeding pretreatment assembly, and a preheating effect is achieved when the low-boiling-point impurities are removed, so that the heating time of methanol in the methanol recovery tower is shortened, and the treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to methanol recovery technical field, concretely is a methanol recovery device. BACKGROUND

[0002] Methanol recovery tower is a kind of distillation equipment for separating and recovering methanol, mixed liquid containing methanol is entered into tower, reboiler at tower bottom heats mixed liquid, makes it partially vaporizes, steam rises, liquid drops, methanol exists more in steam due to lower boiling point, steam is cooled in tower top condenser, and high-purity methanol is obtained.

[0003] However, there are impurities with lower boiling point than methanol in the mixed liquid containing methanol, and the prior art does not have a impurity removal device;And the mixed liquid containing methanol in the prior art is heated in the methanol recovery tower for a long time, which increases the processing time and reduces the processing efficiency.

[0004] Therefore, we propose a methanol recovery device. UTILITY MODEL CONTENTS

[0005] (1) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a methanol recovery device, which has a feed pretreatment assembly, which can remove low-boiling-point impurities by simple distillation and play a preheating role, improve the processing efficiency and other advantages, and can effectively solve the problems in the background art.

[0007] (2) technical scheme

[0008] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: a methanol recovery device, comprising a methanol recovery tower, a feed pretreatment assembly is arranged on the right side of the methanol recovery tower, the feed pretreatment assembly comprises a tower body, a steam discharge pipe, a temperature sensor, an annular seat, a through slot, a feed pipe, a liquid supply pipe, an inverted recess type bottom sealing seat, a liquid supply pump, a liquid suction pipe, an electric valve and a stirring assembly, the tower body comprises an outer tower body and a heat-conducting inner lining, heating rods are installed between the inner wall of the outer tower body and the outer wall of the heat-conducting inner lining, the stirring assembly comprises a rotating shaft, a spiral blade, a stirrer and a motor, and the inverted recess type bottom sealing seat is fixedly installed on the lower end outer surface of the tower body, the annular seat is fixedly installed on the lower end outer surface of the inverted recess type bottom sealing seat, and the liquid supply pipe is connected between one side of the methanol recovery tower and the liquid supply pump.

[0009] Preferably, the liquid supply pump is fixedly installed on the lower part of the left side outer surface of the tower body, the liquid suction pipe is installed on the right end outer surface of the liquid supply pump, and the number of electric valves is two groups, two groups of electric valves are installed on the liquid supply pipe and the liquid suction pipe, and one end of the liquid suction pipe extends into one side of the bottom cavity of the tower body.

[0010] Preferably, the temperature sensor is fixedly installed on one side of the outer surface of the upper end of the tower body, and the probe of the temperature sensor extends into one side of the bottom of the inner cavity of the tower body.

[0011] Preferably, the through groove is arranged on the outer wall of the lower part of the annular seat, the motor is located in the interior of the inverted concave type bottom sealing seat, and the spiral blade and the stirrer are located in the middle part of the inner cavity of the tower body.

[0012] Preferably, the motor is fixedly installed on the middle part of the upper end of the inner cavity of the inverted concave type bottom sealing seat, the rotating shaft is connected to the outer surface of the upper end of the motor, a shaft coupling is arranged between the rotating shaft and the motor, the outer surface of the lower end of the rotating shaft is fixedly connected to the outer surface of the upper end of the output shaft of the motor through the shaft coupling, a sealing bearing is arranged between the rotating shaft and the inverted concave type bottom sealing seat, and the rotating shaft is rotatably connected to the inverted concave type bottom sealing seat through the sealing bearing.

[0013] Preferably, the spiral blade is fixedly installed on the outer wall of the lower part of the rotating shaft, and the stirrer is fixedly installed on the outer wall of the upper part of the rotating shaft.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the methanol recovery device has the following beneficial effects:

[0016] 1. The methanol recovery device removes low-boiling-point impurities through simple distillation by the feeding pretreatment assembly.

[0017] 2. The methanol recovery device plays a preheating role when removing low-boiling-point impurities, reduces the heating time of methanol in the methanol recovery tower, and improves the processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the methanol recovery device.

[0019] Figure 2 It is a structure schematic view of the feeding pretreatment assembly in the methanol recovery device.

[0020] Figure 3 It is a side view sectional view of the feeding pretreatment assembly in the methanol recovery device.

[0021] Figure 4 It is a top view sectional view of the tower body in the methanol recovery device.

[0022] Figure 5 It is a structure schematic view of the stirring assembly in the methanol recovery device.

[0023] In the diagram: 1. Methanol recovery tower; 2. Feed pretreatment assembly; 3. Tower body; 4. Steam exhaust pipe; 5. Temperature sensor; 6. Annular seat; 7. Through groove; 8. Feed pipe; 9. Liquid supply pipe; 10. Inverted concave sealing base; 11. Liquid supply pump; 12. Liquid extraction pipe; 13. Electric valve; 14. Stirring assembly; 15. Outer tower body; 16. Thermally conductive lining; 17. Heating rod; 18. Rotating shaft; 19. Spiral blade; 20. Agitator; 21. Motor. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] This embodiment is a methanol recovery device.

[0026] like Figures 1-5 As shown, the methanol recovery tower 1 is included. A feed pretreatment assembly 2 is provided on the right side of the methanol recovery tower 1. The feed pretreatment assembly 2 includes a tower body 3, a steam discharge pipe 4, a temperature sensor 5, an annular seat 6, a through groove 7, a feed pipe 8, a liquid supply pipe 9, an inverted concave sealing base 10, a liquid supply pump 11, a liquid extraction pipe 12, an electric valve 13, and a stirring assembly 14. The tower body 3 includes an outer tower body 15 and a thermally conductive lining 16. A heating rod 17 is installed between the inner wall of the outer tower body 15 and the outer wall of the thermally conductive lining 16. The stirring assembly 14 includes a rotating shaft 18, a spiral blade 19, a stirrer 20, and a motor 21. The inverted concave sealing base 10 is fixedly installed on the lower outer surface of the tower body 3, and the annular seat 6 is fixedly installed on the lower outer surface of the inverted concave sealing base 10. The liquid supply pipe 9 is connected between one side of the methanol recovery tower 1 and the liquid supply pump 11.

[0027] The liquid supply pump 11 is fixedly installed on the lower part of the left outer surface of the tower body 3, the liquid suction pipe 12 is installed on the right end outer surface of the liquid supply pump 11, the number of the electric valves 13 is two groups, the two groups of electric valves 13 are installed on the liquid supply pipe 9 and the liquid suction pipe 12, one end of the liquid suction pipe 12 extends into one side of the bottom of the inner cavity of the tower body 3, the temperature sensor 5 is fixedly installed on one side of the outer surface of the upper end of the tower body 3, and the probe of the temperature sensor 5 extends into one side of the bottom of the inner cavity of the tower body 3, the through slot 7 is arranged on the outer wall of the lower part of the annular seat 6, the motor 21 is located in the inner part of the inverted concave bottom sealing seat 10, the spiral blade 19 and the stirrer 20 are located in the middle part of the inner cavity of the tower body 3, the motor 21 is fixedly installed on the middle part of the upper end of the inner cavity of the inverted concave bottom sealing seat 10, the rotating shaft 18 is connected to the upper end outer surface of the motor 21, a shaft coupling is arranged between the rotating shaft 18 and the motor 21, the lower end outer surface of the rotating shaft 18 is fixedly connected to the upper end outer surface of the output shaft of the motor 21 through the shaft coupling, a sealing bearing is arranged between the rotating shaft 18 and the inverted concave bottom sealing seat 10, and the rotating shaft 18 is rotationally connected to the inverted concave bottom sealing seat 10 through the sealing bearing; the spiral blade 19 is fixedly installed on the outer wall of the lower part of the rotating shaft 18, and the stirrer 20 is fixedly installed on the outer wall of the upper part of the rotating shaft 18.

[0028] It should be noted that the methanol recovery device, and the methanol recovery tower 1 described in the present application belongs to the prior art, and can be effectively known by those skilled in the art, and specific details will not be repeated; the feed pretreatment assembly 2 is arranged, the mixed liquid containing methanol is added into the inner part of the tower body 3 through the feed pipe 8, the mixed liquid containing methanol in the inner part of the tower body 3 is heated through the heating rod 17, the mixed liquid containing methanol is stirred through the stirring assembly 14, the spiral blade 19 and the stirrer 20 are driven to rotate through the operation of the motor 21, the stirring of the mixed liquid containing methanol is realized, the mixed liquid containing methanol is uniformly heated, the low-boiling-point impurities are changed into steam after heating, and are discharged through the steam discharge pipe 4; after treatment, the mixed liquid containing methanol is sent into the methanol recovery tower 1 through the operation of the liquid supply pump 11, and when the low-boiling-point impurities are removed, the effect of preheating is achieved, the time of heating methanol in the methanol recovery tower 1 is reduced, and the treatment efficiency is improved.

[0029] It is to be noted that, in this document, the terms such as first and second, etc. are used merely to distinguish one entity or action from another, and do not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the stated element.

[0030] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A methanol recovery device, comprising a methanol recovery tower (1), characterized in that: The methanol recovery tower (1) is provided with a feed pretreatment assembly (2) on the right side. The feed pretreatment assembly (2) includes a tower body (3), a steam discharge pipe (4), a temperature sensor (5), an annular seat (6), a through groove (7), a feed pipe (8), a liquid supply pipe (9), an inverted concave sealing base (10), a liquid supply pump (11), a liquid extraction pipe (12), an electric valve (13), and a stirring assembly (14). The tower body (3) includes an outer tower body (15) and a thermally conductive lining (16). A heating rod (17) is installed between the inner wall of (15) and the outer wall of the heat-conducting liner (16). The stirring assembly (14) includes a rotating shaft (18), a spiral blade (19), a stirrer (20) and a motor (21). The inverted concave sealing base (10) is fixedly installed on the lower outer surface of the tower body (3). The annular seat (6) is fixedly installed on the lower outer surface of the inverted concave sealing base (10). The liquid supply pipe (9) is connected between one side of the methanol recovery tower (1) and the liquid supply pump (11).

2. The methanol recovery device according to claim 1, characterized in that: The liquid supply pump (11) is fixedly installed on the lower part of the outer surface of the left side of the tower body (3). The liquid extraction pipe (12) is installed on the outer surface of the right end of the liquid supply pump (11). There are two sets of electric valves (13). The two sets of electric valves (13) are installed on the liquid supply pipe (9) and the liquid extraction pipe (12). One end of the liquid extraction pipe (12) extends into one side of the bottom of the inner cavity of the tower body (3).

3. The methanol recovery device according to claim 2, characterized in that: The temperature sensor (5) is fixedly installed on one side of the upper outer surface of the tower body (3), and the probe of the temperature sensor (5) extends into one side of the bottom of the inner cavity of the tower body (3).

4. The methanol recovery device according to claim 3, characterized in that: The through groove (7) is opened on the outer wall of the lower part of the annular seat (6), the motor (21) is located inside the inverted concave sealing base (10), and the spiral blade (19) and the stirrer (20) are both located in the middle of the inner cavity of the tower body (3).

5. A methanol recovery device according to claim 4, characterized in that: The motor (21) is fixedly installed in the middle of the upper part of the inner cavity of the concave-shaped sealing base (10). The rotating shaft (18) is connected to the upper outer surface of the motor (21). A coupling is provided between the rotating shaft (18) and the motor (21). The lower outer surface of the rotating shaft (18) is fixedly connected to the upper outer surface of the output shaft in the motor (21) through the coupling. A sealed bearing is provided between the rotating shaft (18) and the concave-shaped sealing base (10). The rotating shaft (18) is rotatably connected to the concave-shaped sealing base (10) through the sealed bearing.

6. A methanol recovery device according to claim 5, characterized in that: The spiral blade (19) is fixedly installed on the outer wall of the lower part of the rotating shaft (18), and the stirrer (20) is fixedly installed on the outer wall of the upper part of the rotating shaft (18).

Images