Ethanol distillation device for nitrocotton

Abstract

The utility model provides an ethanol distillation device for nitrocotton, which comprises a distillation retort, a heating coil is arranged in a retort body of the distillation retort, a baffle ring is arranged above the heating coil and on the inner side wall of the distillation retort, and a plurality of elastic components are uniformly distributed at the upper part of the baffle ring. An air outlet pipe is arranged at the upper part of the distillation retort, a heat conduction pipe is arranged at the upper part of the air outlet pipe, a filtering disc is arranged in the heat conduction pipe, and the filtering disc is connected with the air outlet pipe; according to the utility model, alcohol in nitrocotton with alcohol on the filter disc at the upper part of the elastic component in the distillation tank can be distilled through heat released by the heating coil, and the nitrocotton on the filter disc at the upper part of the elastic component can be elastically supported through the elastic supporting effect of the elastic component, so that the distillation effect is better; and the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation equipment, and particularly relates to an ethanol distillation device for nitrocellulose. Background Art

[0002] In the preparation process of nitrocellulose, ethanol plays an important role. Traditionally, nitrocellulose is obtained by nitrating cotton fibers by soaking them in a mixed solution of nitric acid and sulfuric acid. After this process is completed, the obtained nitrocellulose product usually needs to be separated from the remaining acid solution, and due to its solubility in certain organic solvents, ethanol is often used as an extractant.

[0003] Ethanol distillation not only helps in the purification process of nitrocellulose, but also promotes the recycling of solvents, reduces production costs and environmental pollution.

[0004] As a basic industrial raw material, ethanol is widely used in various industries. Currently, for the ethanol distillation technology, its principle is that the boiling point of ethanol is lower than that of other solutions. By heating ethanol to make it evaporate and then condensing it into a liquid, the purpose of recovering higher-purity ethanol can be achieved.

[0005] After retrieval, the publication number (CN207169074U) discloses an ethanol distillation device for nitrocellulose, which includes a raw material intermediate tank, a distillation column, a reflux tank and a finished product intermediate tank. The outlet of the raw material intermediate tank is connected to the distillation column. A top condenser is provided at the top of the distillation column. The outlet of the top condenser is connected to the inlet of the reflux tank. The outlet of the reflux tank is respectively connected to the distillation column and the finished product intermediate tank.

[0006] In traditional distillation columns, since most of the materials usually accumulate at the bottom of the distillation column, it is impossible to quickly and fully perform efficient and rapid distillation operations on the materials in the middle of the distillation column. Often, the materials at the bottom have been fully distilled, while the materials at the upper part have not been fully distilled, resulting in poor distillation effect, low efficiency, and unnecessary energy consumption. Summary of the Utility Model

[0007] In view of this, the utility model provides an ethanol distillation device for nitrocellulose, which can distill the alcohol in the nitrocellulose with alcohol on the filter plate above the elastic component in the distillation tank by the heat released from the heating coil, and can realize the elastic support for the nitrocellulose on the filter plate above it through the elastic support of the elastic component, greatly improving the distillation efficiency of the distillation tank and solving the problem that in the traditional distillation tower, since the materials are usually mostly piled up at the bottom of the distillation tower, it is impossible to quickly and fully carry out efficient and rapid distillation operations on the materials in the middle of the distillation tower. Often, the materials at the bottom have been fully distilled, while the materials at the top have not been fully distilled, resulting in poor distillation effect, low efficiency and unnecessary energy consumption.

[0008] To solve the above technical problems, the utility model provides an ethanol distillation device for nitrocellulose, which includes a distillation tank. A heating coil is arranged inside the tank body of the distillation tank. The heating coil includes an inlet at the lower part and a plurality of outlets opening upward at the upper part. A retaining ring is arranged above the heating coil and on the inner side wall of the distillation tank. A plurality of elastic components are evenly arranged on the upper part of the retaining ring. A placing and screening tray for blocking and placing the nitrocellulose containing alcohol is arranged on the upper part of the plurality of elastic components. An air outlet pipe is arranged at the upper part of the distillation tank. A heat conduction pipe is arranged at the upper part of the air outlet pipe. A filter plate is arranged inside the heat conduction pipe. The utility model can distill the alcohol in the nitrocellulose with alcohol on the filter plate above the elastic component in the distillation tank by the heat released from the heating coil, and can realize the elastic support for the nitrocellulose on the filter plate above it through the elastic support of the elastic component, greatly improving the distillation efficiency of the distillation tank and solving the problem that in the traditional distillation tower, since the materials are usually mostly piled up at the bottom of the distillation tower, it is impossible to quickly and fully carry out efficient and rapid distillation operations on the materials in the middle of the distillation tower. Often, the materials at the bottom have been fully distilled, while the materials at the top have not been fully distilled, resulting in poor distillation effect, low efficiency and unnecessary energy consumption problem.

[0009] Each elastic component includes a first limiting rod arranged on the upper part of the retaining ring. A spring is arranged on the outer side of the first limiting rod. A second limiting rod is arranged at the lower part of the placing and screening tray and on the axis of the first limiting rod. The other end of the spring is fixedly arranged together with the second limiting rod.

[0010] A steam outlet communicating with the condenser is arranged on the outer side wall of the heat conduction pipe. The steam outlet is located above the air outlet pipe and below the filter plate.

[0011] The heat conduction pipe and the air outlet pipe are detachably connected together through a flange plate and bolts.

[0012] The other end of the heat conduction pipe is provided with a heat exchanger. The outlet of the heat exchanger is communicated with the inlet of the heating coil.

[0013] A feeding port is arranged at the top of the distillation tank, and a discharging port with a butterfly valve is arranged at the bottom of the distillation tank.

[0014] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The utility model can distill the alcohol in the nitrocellulose with alcohol on the filter plate on the upper part of the elastic component in the distillation tank by the heat released by the heating coil, and can realize the elastic support of the nitrocellulose on the filter plate on the upper part by the elastic support of the elastic component, thereby greatly improving the distillation efficiency of the distillation tank, solving the problem that the traditional distillation tower is usually mostly accumulated at the bottom of the distillation tower, resulting in the inability to quickly and fully distill the materials in the middle of the distillation tower efficiently and quickly, and often the materials at the bottom have been fully distilled, while the materials at the upper part have not been completely distilled, resulting in poor distillation effect, low efficiency, and unnecessary energy loss.

[0016] 2. The utility model can realize that the sieve plate is compressed by the sieve plate due to the downward impact of the nitrocellulose due to its own gravity during the nitrocellulose feeding process. The compressed spring is impacted by the hot air blown out through the heating coil and the restoring elastic force of the compressed spring, so as to realize the reciprocating oscillation operation of the sieve plate. After the alcohol in the nitrocellulose is distilled, the mass of the nitrocellulose at the bottom is reduced, and the nitrocellulose with alcohol at the top will move downward under the action of its own gravity, and the nitrocellulose at the bottom will move upward under the elastic force of the spring and the blowing action of the hot air, thereby realizing the reciprocating exchange distillation operation of the nitrocellulose at the upper and lower parts, and the distillation effect is better and the efficiency is higher.

[0017] 3. The utility model can condense and liquefy the high-temperature steam discharged through the steam outlet by cooling the condensed gas, and then liquefy the distilled steam into alcohol for collection.

[0018] 4. The utility model can recycle and reuse the excess heat conducted through the heat pipe through the heat exchanger, and guide it through the inlet of the heating coil to enter the reciprocating cycle operation involved in distillation, which is more energy-saving and convenient. The heating coil has multiple outlets, so the purpose is to facilitate the efficient distillation of the nitrocellulose to be distilled on the upper part of the entire sieve plate, and the operation is more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the ethanol distillation device of nitrocellulose of the utility model;

[0020] Figure 2 It is a top view of the ethanol distillation device of nitrocellulose of the utility model;

[0021] Figure 3 This is a cross-sectional view taken along line A-A of the present utility model Figure 2 in the present utility model;

[0022] Figure 4 This is an enlarged view of part B of the present utility model Figure 3 in the present utility model.

[0023] Explanation of reference numerals in the drawings: 100, distillation tank; 101, feeding port; 102, butterfly valve; 103, discharge port; 200, heating coil; 300, retaining ring; 400, elastic component; 401, first limiting rod; 402, spring; 403, second limiting rod; 500, placing sieve tray; 600, air outlet pipe; 700, heat conduction pipe; 701, filter tray; 702, steam outlet; 800, heat exchanger. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model fall within the scope of protection of the present utility model. Figures 1-4

[0025] As Figures 1-4 ​As shown in the figure: This embodiment provides an ethanol distillation device for nitrocellulose, including a distillation tank 100. Inside the tank body of the distillation tank 100, there is a heating coil 200. The heating coil 200 includes an inlet at the lower part and multiple outlets opening upwards at the upper part. Above the heating coil 200 and on the inner side wall of the distillation tank 100, there is a retaining ring 300. Multiple elastic components 400 are evenly arranged on the upper part of the retaining ring 300. Above the multiple elastic components 400, there is a storage sieve tray 500 for blocking and placing nitrocellulose containing alcohol. At the upper part of the distillation tank 100, there is an air outlet pipe 600. At the upper part of the air outlet pipe 600, there is a heat-conducting pipe 700. Inside the heat-conducting pipe 700, there is a filter disc 701. The present utility model can distill the alcohol in the nitrocellulose with alcohol on the filter disc 701 above the elastic components 400 in the distillation tank 100 by the heat released by the heating coil 200, and can realize the elastic support for the nitrocellulose on the filter disc 701 above it through the elastic support of the elastic components 400, greatly improving the distillation efficiency of the distillation tank 100, and solving the problem that in the traditional distillation tower, since the materials are usually mostly piled up at the bottom of the distillation tower, it is impossible to quickly and fully carry out efficient and rapid distillation operations on the materials in the middle of the distillation tower. Often, the materials at the bottom have been fully distilled, while the materials at the upper part have not been fully distilled, resulting in poor distillation effect, low efficiency, and increased unnecessary energy consumption.

[0026] According to an embodiment of the present utility model, as Figures 1-4 shown, each elastic component 400 includes a first limiting rod 401 arranged on the upper part of the retaining ring 300. A spring 402 is arranged on the outer side of the first limiting rod 401. At the lower part of the storage sieve tray 500 and on the axis of the first limiting rod 401, there is a second limiting rod 403. The other end of the spring 402 is fixedly arranged together with the second limiting rod 403. The present utility model can, during the process of putting in nitrocellulose, impact the storage sieve tray 500 downward due to the gravity of the nitrocellulose itself, realizing the compression of the spring 402 by the storage sieve tray 500. The compressed spring 402 will, under the impact of the hot air blown out by the heating coil 200 and the action of the self-restoring elastic force of the compressed spring 402, realize the reciprocating oscillation operation of the storage sieve tray 500. After the alcohol in the nitrocellulose is distilled out, the mass of the lower nitrocellulose decreases, and the upper nitrocellulose with alcohol will move downward under the action of its own gravity. The lower nitrocellulose will move upward under the action of the elastic force of the spring 402 and the blowing action of the hot air, thereby realizing the reciprocating exchange distillation operation of the upper and lower nitrocellulose, with better distillation effect and higher efficiency.

[0027] According to another embodiment of the present utility model, as Figure 1 and Figure 2As shown, the heat conduction tube 700 and the air outlet pipe 600 are detachably connected together through a flange and bolts. The purpose of this is to facilitate the quick disassembly and installation operations between the heat conduction tube 700 and the air outlet pipe 600. A steam outlet 702 communicating with the condenser is provided on the outer side wall of the heat conduction tube 700. The steam outlet 702 is located above the air outlet pipe 600 and below the filter disc 701. The other end of the heat conduction tube 700 is provided with a heat exchanger 800. The outlet of the heat exchanger 800 is communicated with the inlet of the heating coil 200. The present utility model can recycle and reuse the excess heat derived through the heat conduction tube 700 through the heat exchanger 800, and guide it back through the inlet of the heating coil 200 to participate in the reciprocating cycle operation of distillation, which is more energy-saving and convenient. There are multiple outlets of the heating coil 200. The purpose of this is to facilitate the efficient distillation operation of the nitrocellulose to be distilled on the upper part of the entire placement sieve tray 500, and the operation is more convenient and efficient. The present utility model can condense and liquefy the high-temperature steam discharged through the steam outlet 702 through cooling condensate, and thus liquefy the distilled steam into alcohol for collection.

[0028] According to another embodiment of the present utility model, as Figure 1 、 Figure 2 and Figure 3 shown, a feeding port 101 is provided on the upper part of the distillation tank 100, and a discharge port 103 with a butterfly valve 102 is provided at the bottom of the distillation tank 100. The present utility model can facilitate and quickly carry out the feeding operation of nitrocellulose through the feeding port 101, and can also facilitate the convenient, quick opening and closing operations of the discharge port 103 through the butterfly valve 102, and the operation is more convenient.

[0029] The usage method of the present utility model:

[0030] First of all, it should be clear that the ethanol distillation device involved in the present utility model is mainly used for distilling and extracting ethanol. Taking the distillation and purification of alcohol in nitrocellulose with alcohol as an example, the usage method of the present utility model is elaborated in detail. When distilling nitrocellulose, hot air is blown into the inlet of the heating coil 200, and then the feeding port 101 on the distillation tank 100 is opened, and then the nitrocellulose to be distilled is sequentially put into the distillation tank 100. The nitrocellulose falling through the feeding port 101 increases its own weight due to the alcohol it carries. During the feeding process of the nitrocellulose, the gravity of the nitrocellulose itself impacts the placing sieve tray 500 downward, realizing the compression of the spring 402 by the placing sieve tray 500. The compressed spring 402 is under the impact of the hot air blown out by the heating coil 200 and the action of its own restoring elastic force, realizing the reciprocating oscillation operation of the placing sieve tray 500. In addition, after the alcohol in the nitrocellulose is distilled out, the mass of the lower nitrocellulose decreases, and the upper nitrocellulose with alcohol will move downward under the action of its own gravity, and the lower nitrocellulose will move upward under the action of the elastic force of the spring 402 and the blowing action of the hot air, thereby realizing the reciprocating exchange distillation operation of the upper and lower nitrocellulose, with better distillation effect and higher efficiency. The present utility model can distill the alcohol in the nitrocellulose with alcohol on the filter tray 701 above the elastic component 400 in the distillation tank 100 through the heat released by the heating coil 200, and can realize the elastic support of the nitrocellulose on the filter tray 701 above it through the elastic support of the elastic component 400, greatly improving the distillation efficiency of the distillation tank 100, and solving the problem that in the traditional distillation column, since the materials are usually mostly piled up at the bottom of the distillation column, it is impossible to quickly and fully carry out efficient and rapid distillation operation on the materials in the middle of the distillation column, often resulting in the situation that the materials at the bottom have been fully distilled, while the materials at the upper part have not been fully distilled, resulting in poor distillation effect, low efficiency, and increased unnecessary energy consumption.

[0031] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A nitrocellulose ethanol distillation device, comprising a distillation tank (100), characterized in that: A heating coil (200) is arranged inside the tank body of the distillation tank (100); a baffle ring (300) is arranged above the heating coil (200) and on the inner wall of the distillation tank (100); a plurality of elastic components (400) are evenly arranged on the upper part of the baffle ring (300); a sieve plate (500) for blocking and placing nitrocellulose containing alcohol is arranged on the upper part of the plurality of elastic components (400); an air outlet pipe (600) is arranged on the upper part of the distillation tank (100); a heat conduction pipe (700) is arranged on the upper part of the air outlet pipe (600); a filter plate (701) is arranged inside the heat conduction pipe (700).

2. The ethanol distillation device of nitrocellulose as claimed in claim 1, characterized in that: Each of the elastic components (400) comprises a first limiting rod (401) arranged on the upper part of the retaining ring (300), a spring (402) being arranged on the outer side of the first limiting rod (401), a second limiting rod (403) being arranged on the lower part of the storage sieve plate (500) and on the axis of the first limiting rod (401), and the other end of the spring (402) being fixedly arranged together with the second limiting rod (403).

3. The ethanol distillation device of nitrocellulose as claimed in claim 2, characterized in that: A steam outlet (702) connected to the condenser is provided on the outer wall of the heat conducting pipe (700), and the steam outlet (702) is located above the air outlet pipe (600) and below the filter disc (701).

4. The ethanol distillation device of nitrocellulose as claimed in claim 3, characterized in that: The heat conducting pipe (700) and the air outlet pipe (600) are detachably connected together via a flange and bolts.

5. The ethanol distillation device of nitrocellulose as claimed in claim 4, characterized in that: A heat exchanger (800) is provided at the other end of the heat-conducting pipe (700), and the outlet of the heat exchanger (800) is connected to the inlet of the heating coil (200).

6. The ethanol distillation device of nitrocellulose as claimed in claim 5, characterized in that: The upper portion of the distillation tank (100) is provided with a feeding port (101), and the bottom portion of the distillation tank (100) is provided with a discharging port (103) with a butterfly valve (102).

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