Vacuum rectification device capable of uniformly heating

Abstract

The utility model relates to the technical field of rectification devices, and particularly discloses a vacuum rectification device capable of uniformly heating, which comprises a rectification tower, an exhaust component is mounted at the top of the rectification tower, a mixing component is mounted in the rectification tower, and a feeding pipe is fixedly connected to one side of the rectification tower. A discharging pipe is fixedly connected to the other side of the rectifying tower, a discharging valve is fixed to the middle of the discharging pipe, an annular side heating pipe is fixed to the inner wall of the rectifying tower, and a middle heating pipe is fixed to the center of the interior of the rectifying tower; and the mixing assembly comprises an outer sleeve rotationally mounted inside the rectifying tower. Materials can be heated from the middle of the rectifying tower through the arranged middle heating pipe, the materials can be heated in the direction of the inner wall of the rectifying tower through the side heating pipes, and the materials can be mixed and driven to move through the mixing assembly, so that the situation that the materials are heated by a single heating assembly, and the heating efficiency is improved is avoided. And the local temperature is too high.

Description

Technical Field

[0001] This utility model relates to the field of distillation apparatus technology, and in particular to a vacuum distillation apparatus capable of uniform heating. Background Technology

[0002] A vacuum distillation unit is a device used to separate and purify liquid mixtures under reduced pressure (vacuum) conditions. Its core principle is to utilize the characteristic that different substances have lower boiling points in a vacuum environment, achieving separation of components in the mixture through heating and condensation. This device is widely used in chemical, pharmaceutical, food, petroleum, and environmental protection fields, and is particularly suitable for separating substances with high boiling points, heat sensitivity, easy oxidation, or high purity requirements.

[0003] Currently, vacuum distillation equipment generally uses a fixed electromagnetic heating method, which results in uneven water temperature inside the heating chamber, thus making it impossible to heat the water sufficiently and quickly.

[0004] The existing publicly available technical solution, CN219743950U, discloses a heating device for a distillation column, including a steam tank. A steam pipe is provided at the upper end of the steam tank, and a water supply pipe is fixedly connected to one side of the steam tank. The steam pipe and the water supply pipe are connected to the steam tank. A heating chamber and an insulation cylinder are provided inside the steam tank. The insulation cylinder is located outside the heating chamber. The water inside the heating chamber is stirred by a stirring mechanism to achieve the effect of uniform heating of the water.

[0005] In actual implementation of the above technical solution, the heating tube is placed at the bottom of the heating box. When the heating tube is working, the stirring mechanism moves up and down inside the heating box. When the stirring mechanism is located at the top of the heating box, it is far away from the heating tube, which can easily lead to insufficient liquid flow near the heating tube, resulting in heat not being able to dissipate in time and causing local overheating. Summary of the Invention

[0006] The purpose of this invention is to provide a vacuum distillation apparatus that can be uniformly heated. The apparatus can heat the material from the middle of the distillation column through a central heating tube, while the side heating tubes can heat the material from the inner wall of the distillation column. Furthermore, the mixing component can mix the material and drive its movement, thereby avoiding the problem of excessively high local temperatures caused by heating the material with a single heating component. This solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vacuum distillation device capable of uniform heating, comprising a distillation column, an exhaust assembly installed at the top of the distillation column, a mixing assembly installed inside the distillation column, a feed pipe fixedly connected to one side of the distillation column, and a discharge pipe fixedly connected to the other side of the distillation column, a discharge valve fixedly located in the middle of the discharge pipe, an annular side heating pipe fixedly located on the inner wall of the distillation column, and a central heating pipe fixedly located in the center of the inside of the distillation column;

[0008] The mixing assembly includes an outer sleeve rotatably mounted inside a distillation column, an inner sleeve passing through the interior of the outer sleeve, and multiple mixing rods fixed to the surfaces of the outer sleeve and the inner sleeve.

[0009] Preferably, the mixing assembly further includes a gearbox fixed to the bottom of the distillation column, and a mixing motor is fixedly connected to the bottom of the gearbox. The power output end of the mixing motor is fixed with an output shaft that passes through the inside of the gearbox.

[0010] Preferably, a first gear, a second gear, and a third gear are rotatably mounted inside the gearbox. The first gear, the second gear, and the third gear are tapered, and the first gear, the second gear, and the third gear mesh with each other in pairs.

[0011] Preferably, the first gear is fixedly connected to the inner sleeve, and the central heating tube passes through the interior of the inner sleeve.

[0012] Preferably, the third gear is fixedly connected to the outer sleeve, and the mixing rod on the inner sleeve is located above the mixing rod on the outer sleeve.

[0013] Preferably, the exhaust assembly includes a dehumidification box fixed to one side of the distillation column, and the distillation column and the dehumidification box are in communication with each other.

[0014] Preferably, the exhaust assembly further includes an exhaust pipe fixed to the top of the distillation column, and an exhaust valve is fixedly installed on the exhaust pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The central heating tube can heat the material from the middle of the distillation column, while the side heating tube can heat the material from the inner wall of the distillation column. The mixing component can mix the material and drive its movement, thereby avoiding the problem of local overheating caused by heating the material with a single heating component. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall structural view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the hybrid component of this utility model;

[0020] Figure 3 This is a schematic diagram of the side heating tube of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first gear of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Distillation column; 2. Exhaust assembly; 201. Exhaust valve; 202. Exhaust pipe; 203. Dehumidifier box; 3. Feed pipe; 4. Mixing assembly; 401. Mixing motor; 402. Output shaft; 403. Gearbox; 404. Outer sleeve; 405. Inner sleeve; 406. Mixing rod; 407. First gear; 408. Second gear; 409. Third gear; 5. Discharge pipe; 6. Discharge valve; 7. Central heating pipe; 8. Side heating pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution:

[0026] Please see Figures 1 to 4 A vacuum distillation apparatus capable of uniform heating includes a distillation column 1, an exhaust assembly 2 installed at the top of the distillation column 1, a mixing assembly 4 installed inside the distillation column 1, a feed pipe 3 fixedly connected to one side of the distillation column 1, and a discharge pipe 5 fixedly connected to the other side of the distillation column 1. A discharge valve 6 is fixedly fixed in the middle of the discharge pipe 5, an annular side heating pipe 8 is fixedly fixed to the inner wall of the distillation column 1, and a central heating pipe 7 is fixedly fixed in the center of the interior of the distillation column 1.

[0027] The mixing assembly 4 includes an outer sleeve 404 rotatably installed inside the distillation column 1, an inner sleeve 405 passing through the inside of the outer sleeve 404, and a plurality of mixing rods 406 fixed on the surfaces of the outer sleeve 404 and the inner sleeve 405.

[0028] The mixing assembly 4 also includes a gearbox 403 fixed to the bottom of the distillation column 1, and a mixing motor 401 is fixedly connected to the bottom of the gearbox 403. The power output end of the mixing motor 401 is fixed with an output shaft 402 that passes through the inside of the gearbox 403. A first gear 407, a second gear 408, and a third gear 409 are rotatably mounted inside the gearbox 403. The first gear 407, the second gear 408, and the third gear 409 are tapered and mesh with each other in pairs. The first gear 407 is fixedly connected to the inner sleeve 405, and the central heating tube 7 passes through the inside of the inner sleeve 405. The third gear 409 is fixedly connected to the outer sleeve 404, and the mixing rod 406 on the inner sleeve 405 is located above the mixing rod 406 on the outer sleeve 404.

[0029] By adopting the above technical solution, a vacuum system is also set up in the distillation column 1 to maintain a low-pressure environment inside the column. This is existing public technology and will not be described in detail here. The material is fed into the distillation column 1 through the feed pipe 3. When it is necessary to heat the material, it can be heated through the central heating pipe 7 and the side heating pipe 8. The central heating pipe 7 and the side heating pipe 8 can be electric heating equipment. The central heating pipe 7 can heat the material from the middle of the distillation column 1, while the side heating pipe 8 can heat the material from the inner wall of the distillation column 1. In addition, the mixing component 4 can mix the material and drive the material to move, thereby avoiding the problem of local overheating caused by heating the material by a single heating component.

[0030] After the mixing motor 401 is started, it can drive the output shaft 402 to rotate through the power output end. The output shaft 402 can drive the first gear 407 to rotate. At this time, the first gear 407 drives the outer sleeve 404 to rotate. The first gear 407 drives the second gear 408 to rotate through its teeth. The second gear 408 drives the third gear 409 to rotate through its teeth. The third gear 409 can then drive the inner sleeve 405 to rotate, thereby driving the mixing rod 406 to rotate. Multiple sets of mixing rods 406 are provided to fully stir and mix the material in the distillation column 1. The material can move towards the side heating tube 8 as the mixing rod 406 rotates, thereby mixing the material in the center and around the perimeter to achieve a uniform heating effect.

[0031] Specifically, such as Figure 1As shown, the exhaust assembly 2 includes a dehumidification box 203 fixed to one side of the distillation column 1. The distillation column 1 and the dehumidification box 203 are interconnected. The exhaust assembly 2 also includes an exhaust pipe 202 fixed to the top of the distillation column 1, and an exhaust valve 201 is fixedly installed on the exhaust pipe 202.

[0032] By adopting the above technical solution, when the distillation column 1 is working, the steam can be discharged through the exhaust pipe 202, and the dehumidification box 203 can use an existing dehumidification device to remove the moisture in the steam. The high-temperature gas can also re-enter the distillation column 1 through the dehumidification box 203. The output end of the dehumidification box 203 discharges high-temperature gas with lower humidity, which is connected to the distillation column 1.

[0033] Working principle: The material is fed into the distillation column 1 through the feed pipe 3. When heating is required, the material can be heated through the central heating pipe 7 and the side heating pipe 8. The central heating pipe 7 and the side heating pipe 8 can be electric heating devices. The central heating pipe 7 can heat the material from the middle of the distillation column 1, while the side heating pipe 8 can heat the material from the inner wall of the distillation column 1. After the mixing motor 401 is started, it can drive the output shaft 402 to rotate through the power output end. The output shaft 402 can drive the first gear 407 to rotate. At this time, the first gear... 407 drives the outer sleeve 404 to rotate, and the first gear 407 drives the second gear 408 to rotate through its teeth. The second gear 408 drives the third gear 409 to rotate through its teeth. The third gear 409 then drives the inner sleeve 405 to rotate, thereby driving the mixing rod 406 to rotate. Multiple sets of mixing rods 406 are provided to fully stir and mix the material in the distillation column 1. The material can move towards the side heating tube 8 as the mixing rod 406 rotates, thereby mixing the material in the center and around the perimeter to achieve a uniform heating effect.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vacuum rectifying apparatus that can be uniformly heated, comprising a rectifying column (1), characterized by: The top of the rectifying tower (1) is provided with an exhaust assembly (2), the inside of the rectifying tower (1) is provided with a mixing assembly (4), one side of the rectifying tower (1) is fixedly connected with a feeding pipe (3), the other side of the rectifying tower (1) is fixedly connected with a discharging pipe (5), the middle of the discharging pipe (5) is fixedly provided with a discharging valve (6), the inner wall of the rectifying tower (1) is fixedly provided with an annular side heating pipe (8), and the inside of the rectifying tower (1) is fixedly provided with a middle heating pipe (7). The mixing assembly (4) comprises an outer sleeve (404) rotatably arranged in the inside of the rectifying tower (1), the inside of the outer sleeve (404) is provided with an inner sleeve (405), and the surfaces of the outer sleeve (404) and the inner sleeve (405) are fixedly provided with a plurality of mixing rods (406).

2. The vacuum rectifying apparatus according to claim 1, wherein: The mixing assembly (4) further comprises a gear box (403) fixedly arranged at the bottom of the rectifying tower (1), and the bottom of the gear box (403) is fixedly connected with a mixing motor (401), and the power output end of the mixing motor (401) is fixedly provided with an output shaft (402) penetrating through the inside of the gear box (403).

3. A vacuum rectifying apparatus capable of uniform heating according to claim 2, wherein: The inside of the gear box (403) is rotatably provided with a first gear (407), a second gear (408) and a third gear (409), the first gear (407), the second gear (408) and the third gear (409) are conical in size, and the first gear (407), the second gear (408) and the third gear (409) are in meshing relationship with each other.

4. The vacuum rectifying apparatus according to claim 3, wherein: The first gear (407) is fixedly connected with the inner sleeve (405), and the middle heating pipe (7) penetrates through the inside of the inner sleeve (405).

5. A vacuum rectifying apparatus capable of uniform heating according to claim 4, wherein: The third gear (409) is fixedly connected with the outer sleeve (404), and the mixing rods (406) on the inner sleeve (405) are located above the mixing rods (406) on the outer sleeve (404).

6. The uniformly heatable vacuum rectification apparatus of claim 1, wherein: The exhaust assembly (2) comprises a dehumidification box (203) fixed to one side of the rectifying tower (1), and the rectifying tower (1) and the dehumidification box (203) are in communication with each other.

7. A vacuum rectifying apparatus capable of uniform heating according to claim 6, wherein: The exhaust assembly (2) further comprises an exhaust pipe (202) fixed to the top of the rectifying tower (1), and the exhaust pipe (202) is fixedly provided with an exhaust valve (201).

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