Purification equipment for glacial acetic acid

Abstract

The utility model provides glacial acetic acid purification equipment which comprises a step reinforcing seat, a distillation flask and a stainless steel rotating shaft, the distillation flask is mounted at the upper end in the step reinforcing seat, an outer protective cylinder is fixed on the outer side of the step reinforcing seat, a first anti-explosion film layer is arranged on the outer side of the outer protective cylinder, and a rubber ring is arranged in the middle of the upper end of the distillation flask; a stainless steel rotating shaft penetrates through the miniature bearing and a rubber ring, a corrosion-resistant stirring blade is horizontally mounted at the lower end of the stainless steel rotating shaft, and the corrosion-resistant stirring blade is horizontally located at the lower end of the interior of the distillation flask; a steam pipe is mounted on the left side of the upper end of the distillation flask in a penetrating manner; by means of the design, the problem that an original device is not safe enough in operation is solved, the double-layer distillation protection structure is designed, the safety of heating operation of the distillation flask can be guaranteed, and meanwhile acetic acid in the distillation flask can be stirred and mixed conveniently.

Description

Technical Field

[0001] The utility model relates to a glacial acetic acid purification device, belonging to the technical field of glacial acetic acid purification devices. Background Art

[0002] Acetic acid has a molecular formula of C2H4O2 and a boiling point of 118.1°C. Its Chinese name is acetic acid, also known as glacial acetic acid. Crude acetic acid refers to acetic acid containing impurities such as formic acid, acetic anhydride, non-volatiles, chlorides, iron, and heavy metals. Due to its high corrosiveness, current acetic acid purification equipment is primarily constructed of stainless steel. Distillation, rectification, and condensation techniques are employed to remove these impurities, utilizing the difference in boiling points between acetic acid and the impurities.

[0003] Publication No.: CN215310254U mentions a glacial acetic acid purification device. The device is provided with a stirring mechanism, which can alternately engage with the driven bevel gear through two half-bevel gears, and can continuously rotate the first roller and the stirring fan back and forth to facilitate uniform heating of the mixture. However, the device uses a motor to drive the various shafts and gears to rotate and engage, which is not practical. Because the motor will vibrate when it is working, the vibration will be transmitted to the heated distillation flask through the shaft. Once the vibration is excessive, the heated distillation flask will rupture, causing acetic acid to splash and corrode surrounding personnel, posing a great safety hazard to surrounding personnel. Now there is an urgent need for a glacial acetic acid purification device to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a purification device for glacial acetic acid to solve the problems raised in the above-mentioned background technology. The present invention designs a double-layer distillation protection structure, which can ensure the safety of the heating operation of the distillation flask and facilitate the stirring and mixing of the acetic acid therein.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a purification equipment of glacial acetic acid, comprising a step reinforcement seat, a distillation flask and a stainless steel rotating shaft, the distillation flask is installed at the upper end of the step reinforcement seat, an outer protective cylinder is fixed to the outside of the step reinforcement seat, a first explosion-proof film layer is provided on the outside of the outer protective cylinder, a rubber ring is provided in the middle of the upper end of the distillation flask, a protective cylinder cover is horizontally provided at the upper end of the outer protective cylinder, a miniature bearing is installed in the middle of the protective cylinder cover, the stainless steel rotating shaft passes through the miniature bearing and the rubber ring, a corrosion-resistant stirring blade is horizontally installed at the lower end of the stainless steel rotating shaft, and the corrosion-resistant stirring blade is horizontally located at the lower end of the distillation flask, a steam pipe is installed through the left side of the upper end of the distillation flask, and a liquid adding pipe is inserted into the right side of the upper end of the distillation flask.

[0006] Furthermore, a heater is installed at the lower end of the step reinforcement seat.

[0007] Furthermore, a second explosion-proof film layer is attached to the upper end of the protective tube cover.

[0008] Furthermore, a rubber anti-slip pinch block is installed on the upper end of the stainless steel rotating shaft.

[0009] Furthermore, the other end of the steam pipe passes through the protective cylinder cover and is tilted to the outside.

[0010] Furthermore, the upper end of the liquid adding tube passes through the protective cylinder cover, and the upper end of the liquid adding tube is plugged with a rubber tube plug.

[0011] The beneficial effects of the utility model are as follows: the utility model is a glacial acetic acid purification device, because the utility model adds a step reinforcement seat, an outer protective tube, a first explosion-proof film layer, a corrosion-resistant stirring blade, a stainless steel rotating shaft, a rubber anti-slip pinch block, a protective tube cover, a second explosion-proof film layer and a micro bearing, our design improvement and actual use show that the device has a reasonable structure and good practicality. A double-layer distillation protection structure is designed to ensure the safety of the heating operation of the distillation flask, and at the same time it is convenient to stir and mix the acetic acid therein, and the operation is highly safe and simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of a glacial acetic acid purification device of the utility model;

[0014] Figure 2 This is a cross-sectional schematic diagram of a glacial acetic acid purification device of the utility model;

[0015] Figure 3 This is a three-dimensional schematic diagram of a corrosion-resistant stirring blade of a glacial acetic acid purification device of the utility model;

[0016] In the figure: 1-heater, 2-step reinforcement seat, 3-outer protective tube, 4-first explosion-proof film layer, 5-distillation flask, 6-liquid addition tube, 7-rubber tube plug, 8-steam pipe, 9-corrosion-resistant stirring blade, 10-stainless steel rotating shaft, 11-rubber anti-slip pinch block, 12-protective tube cover, 13-second explosion-proof film layer, 14-miniature bearing. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] See also Figure 1-Figure 3The utility model provides a technical solution: a purification device for glacial acetic acid, comprising a step reinforcement seat 2, a distillation flask 5 and a stainless steel rotating shaft 10, the distillation flask 5 is installed at the upper end of the step reinforcement seat 2, an outer protective cylinder 3 is fixed to the outside of the step reinforcement seat 2, a first explosion-proof film layer 4 is provided on the outside of the outer protective cylinder 3, a rubber ring is provided in the middle of the upper end of the distillation flask 5, a protective cylinder cover 12 is horizontally provided on the upper end of the outer protective cylinder 3, a miniature bearing 14 is installed in the middle of the protective cylinder cover 12, the stainless steel rotating shaft 10 passes through the miniature bearing 14 and the rubber ring, a corrosion-resistant stirring blade 9 is horizontally installed at the lower end of the stainless steel rotating shaft 10, and the corrosion-resistant stirring blade 9 is horizontally located at the lower end of the distillation flask 5, a steam pipe 8 is installed through the left side of the upper end of the distillation flask 5, and a liquid adding pipe 6 is inserted into the right side of the upper end of the distillation flask 5. This design solves the problem that the original device is not safe to operate.

[0019] As a first embodiment of the present invention: a heater 1 is installed at the lower end of the step reinforcement seat 2, and the added heater 1 can heat the distillation flask 5 so as to heat the acetic acid solution inside it.

[0020] A second explosion-proof film layer 13 is affixed to the upper end of the protective cylinder cover 12, preventing the protective cylinder cover 12 from rupturing or exploding. A rubber anti-slip pinch 11 is mounted on the upper end of the stainless steel rotating shaft 10. This prevents the user from rotating the stainless steel rotating shaft 10, thereby rotating the corrosion-resistant stirring blade 9 and stirring the crude acetic acid in the distillation flask 5. The other end of the steam pipe 8 passes through the protective cylinder cover 12 and is tilted to the outside. The upper end of the liquid adding pipe 6 passes through the protective cylinder cover 12 and is plugged with a rubber tube plug 7. This added liquid adding pipe 6 facilitates the addition of crude acetic acid to the distillation flask 5.

[0021] As a second embodiment of the present utility model: first, the steam pipe 8 is connected to the external collection bottle (not shown), and then crude acetic acid is added to the distillation flask 5 through the liquid adding tube 6, the rubber tube plug 7 is covered, and the heater 1 is started. The heater 1 can heat the distillation flask 5 and the crude acetic acid inside it. At the same time, the rubber anti-slip pinch block 11 is twisted, and the rubber anti-slip pinch block 11 will drive the stainless steel rotating shaft 10 to rotate, thereby driving the corrosion-resistant stirring blade 9 to rotate, thereby stirring the crude acetic acid in the distillation flask 5 to achieve better uniform heating effect. The outer protective cylinder 3 and the first explosion-proof film layer 4 are arranged to shield and protect the outside of the distillation flask 5, and the protective cylinder cover 12 and the second explosion-proof film layer 13 are arranged to easily shield and protect the upper end of the distillation flask 5, which can effectively prevent the acetic acid solution from splashing outward when the distillation flask 5 breaks, thereby ensuring the safety of people around it.

[0022] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0023] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A purification device for glacial acetic acid, comprising a step reinforcement base (2), a distillation flask (5) and a stainless steel rotating shaft (10), characterized in that: A distillation flask (5) is installed at the upper end of the step reinforcement seat (2), an outer protective tube (3) is fixed to the outside of the step reinforcement seat (2), and a first explosion-proof film layer (4) is provided on the outside of the outer protective tube (3); A rubber ring is provided in the middle of the upper end of the distillation flask (5), a protective tube cover (12) is horizontally provided on the upper end of the outer protective tube (3), a micro bearing (14) is installed in the middle of the protective tube cover (12), the stainless steel rotating shaft (10) passes through the micro bearing (14) and the rubber ring, a corrosion-resistant stirring blade (9) is horizontally installed at the lower end of the stainless steel rotating shaft (10), and the corrosion-resistant stirring blade (9) is horizontally located at the lower end of the distillation flask (5), a steam pipe (8) is installed through the left side of the upper end of the distillation flask (5), and a liquid adding pipe (6) is inserted into the right side of the upper end of the distillation flask (5).

2. A purification device for glacial acetic acid according to claim 1, characterized in that: A heater (1) is installed at the lower end of the step reinforcement seat (2).

3. A purification device for glacial acetic acid according to claim 1, characterized in that: A second explosion-proof film layer (13) is attached to the upper end of the protective cylinder cover (12).

4. A purification device for glacial acetic acid according to claim 1, characterized in that: A rubber anti-slip pinch block (11) is installed on the upper end of the stainless steel rotating shaft (10).

5. A purification device for glacial acetic acid according to claim 1, characterized in that: The other end of the steam pipe (8) passes through the protective cylinder cover (12) and is tilted to the outside.

6. A purification device for glacial acetic acid according to claim 1, characterized in that: The upper end of the liquid adding pipe (6) passes through the protective cylinder cover (12), and the upper end of the liquid adding pipe (6) is plugged with a rubber pipe plug (7).

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