A device for removing fat-soluble impurities from tobacco cellulose

Abstract

The utility model discloses a device for removing fat-soluble impurities in tobacco cellulose, comprising a barrel assembly, an upper cover assembly, a low-temperature cooling circulation pump and a peristaltic pump. In the utility model, the liquid condensed from the condensation tower is dripped into the tobacco in the inner barrel, and the lipid impurities in the tobacco cellulose are dissolved and taken away by soaking. The filtrate is pumped back to the gap between the inner barrel and the outer barrel by the peristaltic pump, and the filtrate is reused after heating and evaporation, and the lipid impurities in the tobacco cellulose are removed, which ensures that the extracted lipid impurities will not be repeatedly returned to the inner barrel containing the tobacco.

Description

Technical Field

[0001] The utility model specifically relates to a device for removing fat-soluble impurities in tobacco cellulose. Background Art

[0002] Cellulose is the main component of tobacco cell walls and the basic substance that constitutes the cell tissue and skeleton of tobacco leaves. Its combustion behavior has an important influence on the overall combustion behavior of tobacco. The determination of cellulose and hemicellulose in tobacco is of great significance for evaluating the quality of tobacco leaves. Therefore, in order to evaluate the quality differences between tobacco leaves produced in different regions, tobacco leaves picked in different seasons, tobacco leaves picked at different growth stages, and tobacco leaves prepared by different baking processes, it is necessary to quantitatively determine the cellulose content in these tobacco leaves, which requires obtaining tobacco cellulose standard materials with good uniformity, good stability, and high tobacco cellulose content.

[0003] In the prior art, the preparation of tobacco cellulose standard material must go through the processes of crushing, impurity removal, alkaline hydrolysis, bleaching, quantification, etc., and removing water-soluble and fat-soluble impurities from the crushed tobacco cellulose to obtain a tobacco cellulose intermediate is the key step in obtaining tobacco cellulose standard material. The device for removing fat-soluble impurities from tobacco cellulose must meet the following basic requirements: 1. The tobacco material should be easy to load and unload, 2. The impurity removal solvent can be recycled, and 3. The impurity removal device is easy to clean and has a high safety factor. However, the impurity removal devices currently on the market cannot meet the above requirements. Utility Model Content

[0004] The utility model aims to provide a device for removing fat-soluble impurities in tobacco cellulose.

[0005] The technical solution of the utility model is as follows:

[0006] A device for removing fat-soluble impurities from shredded tobacco cellulose comprises a barrel assembly, an upper cover assembly, a low-temperature cooling circulation pump and a peristaltic pump.

[0007] The barrel assembly comprises an inner barrel and an outer barrel, wherein the inner barrel is installed in the outer barrel, the upper opening of the inner barrel is lower than the upper opening of the outer barrel, and a gap is formed between the peripheral wall and the bottom wall of the inner barrel and the outer barrel;

[0008] The inner barrel body has a lower side wall with a material inlet and outlet penetrating the peripheral wall of the outer barrel body, and the material inlet and outlet has a sealing cover. A filter screen is provided on the bottom wall of the inner cavity of the inner barrel body, and the filter screen is flush with the lower edge of the material inlet and outlet. The bottom wall of the inner barrel body has an inner liquid outlet penetrating the bottom wall of the outer barrel body, and the inner liquid outlet is located below the filter screen.

[0009] The outer barrel has a liquid outlet at its lower end, a liquid level gauge on its side wall to observe the liquid level in the gap between the outer barrel and the inner barrel, and a heating device at its lower part to heat the liquid in the gap;

[0010] The upper cover assembly comprises an upper cover body which seals and covers the upper opening of the outer barrel body, the upper cover body is provided with a quick-opening feed port and a condensate return port, the condensate return port is located in the middle of the upper cover body, and a condensation tower is installed thereon, and a condensation coil is arranged in the condensation tower;

[0011] The low-temperature cooling circulation pump is connected to both ends of the condensing coil to provide condensate therefor, the water inlet end of the peristaltic pump is connected to the inner liquid outlet of the inner barrel body, and the water outlet end is connected to the upper part of the gap.

[0012] In a preferred embodiment of the present invention, the upper cover body is sealed on the upper opening of the outer barrel body through a quick-opening sealing structure.

[0013] In a preferred embodiment of the present invention, the liquid level gauge is a communicating vessel-shaped liquid level gauge connecting the upper and lower parts of the gap.

[0014] In a preferred embodiment of the present invention, the sealing cover has an observation window.

[0015] In a preferred embodiment of the present utility model, the condensate return port is provided with a guide thorn structure toward the inner barrel body.

[0016] In a preferred embodiment of the present invention, the lower portion of the outer barrel is conical.

[0017] In a preferred embodiment of the present invention, the filter screen is a 50-mesh filter screen.

[0018] In a preferred embodiment of the utility model, the low-temperature cooling circulation pump is electrically connected to a thermal sensor, which is installed at the lower part of the outer barrel to sense the temperature of the liquid in the gap and enable the low-temperature cooling circulation pump to adjust the flow rate of the condensate in the condensing coil according to the temperature.

[0019] In a preferred embodiment of the present invention, at least one brake pulley is provided at the lower part of the outer barrel.

[0020] The beneficial effects of the utility model are:

[0021] 1. In the utility model, the liquid condensed from the condensation tower is dripped into the tobacco in the inner barrel, and the lipid impurities in the tobacco cellulose are dissolved and taken away by immersion. The filtrate is pumped back to the gap between the inner barrel and the outer barrel by the peristaltic pump, and after heating and evaporation, the filtrate is reused, and the lipid impurities in the tobacco cellulose are removed, which ensures that the extracted lipid impurities will not be repeatedly returned to the inner barrel containing the tobacco.

[0022] 2. The lower side wall of the inner barrel body of the utility model has a material inlet and outlet that penetrates the peripheral wall of the outer barrel body. The lower edge of the material inlet and outlet is flush with the filter screen in the inner barrel body. This structural design makes it easy to move the material in the inner barrel body out during unloading, and there is no dead angle during cleaning, making cleaning convenient.

[0023] 3. The sealing cover of the material inlet and outlet of the utility model has an observation window, which can be used to observe the liquid level in the inner barrel at any time to prevent condensate from overflowing the inner barrel and bringing the material into the gap between the inner barrel and the outer barrel.

[0024] 4. The condensation tower in the utility model can condense the ethanol vapor evaporated by heating into clean liquid, and drip it into the inner barrel body filled with tobacco through the guide barb structure; the peristaltic pump pumps the ethanol liquid filtered by the filter and dissolved with tobacco cellulose lipid impurities back to the gap between the inner barrel body and the outer barrel body for heating and evaporation. The above evaporation, condensation, extraction, filtration, pumping back and re-evaporation process is repeated many times, so that the ethanol solvent used for extraction can be reused many times, achieving the purpose of green and environmental protection.

[0025] 5. The lower part of the outer barrel of the utility model is provided with at least one brake pulley, so that the utility model is easy to move, can be fixed at a suitable place of use at any time, and is convenient to connect with other devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0027] The technical solution of the present utility model is further illustrated and described below through specific implementation modes in combination with the accompanying drawings.

[0028] like Figure 1 As shown, a device for removing fat-soluble impurities from shredded tobacco cellulose comprises a barrel assembly 1, an upper cover assembly 2, a low-temperature cooling circulation pump 3 and a peristaltic pump 4.

[0029] The barrel assembly 1 comprises an inner barrel 11 and an outer barrel 12, wherein the inner barrel 11 is installed in the outer barrel 12, the upper opening of the inner barrel 11 is lower than the upper opening of the outer barrel 12, and a gap 13 is formed between the peripheral wall and the bottom wall of the inner barrel 11 and the outer barrel 12;

[0030] The inner barrel body 11 has a material inlet and outlet 110 on the side wall of the lower part thereof which passes through the peripheral wall of the outer barrel body 12. The material inlet and outlet 110 has a sealing cover 111, and the sealing cover 111 has a transparent observation window 1110. A 50-mesh filter screen 112 is provided on the bottom wall of the inner cavity of the inner barrel body 11, and the filter screen 112 is flush with the lower edge of the material inlet and outlet 110, and the bottom wall of the inner barrel body 11 has an inner liquid outlet 113 which passes through the bottom wall of the outer barrel body 12, and the inner liquid outlet 113 is located below the filter screen 112. The above structural design makes it easy to remove the material in the inner barrel body 11 when unloading, and there is no dead angle when cleaning, and the cleaning is convenient, and the liquid level in the inner barrel body 11 can be observed at any time through the observation window 1110 to prevent the condensate from overflowing the inner barrel body 11, thereby bringing the material to the gap 13 between the inner barrel body 11 and the outer barrel body 12;

[0031] The outer barrel 12 has a conical lower portion and a liquid outlet 120 at the lower end. The side wall thereof has a communicating vessel-shaped liquid level gauge 121 communicating with the upper and lower portions of the gap 13 to observe the liquid level of the gap 13 between the outer barrel 12 and the inner barrel 11, and a heating device 122 is provided at the lower portion thereof to heat the liquid in the gap 13. Preferably, at least one brake pulley 123 is provided at the lower portion of the outer barrel 12, so that the utility model is easy to move, can be fixed at a suitable place of use at any time, and is convenient to connect with other devices.

[0032] The upper cover assembly 2 comprises an upper cover body 21 which is sealed with an upper opening of the outer barrel body 12 by a quick-opening sealing structure 210, the upper cover body 21 is provided with a quick-opening feed port 211 and a condensate return port 212, the condensate return port 212 is located in the middle of the upper cover body 21, and is provided with a guide thorn structure 2120 toward the inner barrel body 11, and a condensation tower 213 is installed thereon, and a condensation coil 2130 is provided in the condensation tower 213;

[0033] The low-temperature cooling circulation pump 3 is connected to both ends of the condensing coil 2130 to provide condensate thereto, and is electrically connected to a thermal sensor 31, which is installed at the lower part of the outer barrel 12 to sense the temperature of the liquid in the gap 13 and enable the low-temperature cooling circulation pump 3 to adjust the flow rate of the condensate in the condensing coil 2130 according to the temperature. The water inlet end of the peristaltic pump 4 is connected to the inner liquid outlet 113 of the inner barrel 11, and the water outlet end is connected to the upper part of the gap 13.

[0034] In the utility model, the condensation tower 213 can condense the ethanol vapor evaporated by heating into a clean liquid, and drip it into the tobacco in the inner barrel 11 through the guide barb structure 2120, and the lipid impurities in the tobacco cellulose are dissolved and taken away by soaking. The ethanol liquid filtered by the filter 112 and containing the tobacco cellulose lipid impurities is pumped back to the gap 13 between the inner barrel 11 and the outer barrel 12 by the peristaltic pump 4. After heating and evaporation, the ethanol is reused, and the tobacco cellulose lipid impurities are removed, which ensures that the extracted lipid impurities are no longer repeatedly returned to the inner barrel 11 containing the tobacco. Through the above condensation, extraction, filtration, pumping back and re-evaporation process, the ethanol solvent used for extraction can be reused many times, achieving the purpose of green environmental protection.

[0035] The specific working process of the utility model is as follows:

[0036] When it is necessary to remove the impurities of tobacco cellulose lipids, first, close the inner liquid outlet 113, the outer liquid outlet 120 and the material import and export 110, load the crushed tobacco into the inner barrel 11, the height does not exceed the inner cavity height 2 / 3 of the inner barrel 11, flatten and compact, add ethanol to immerse the tobacco, the liquid level is slightly higher than the tobacco, and ethanol is also poured into the gap 13 between the inner barrel 11 and the outer barrel 12, and its liquid level is about 10cm lower than the upper edge of the inner barrel 11, add several zeolites, prevent ethanol from boiling, and close the upper cover body 21 on the outer barrel 12. Then, the coolant liquid outlet of the low-temperature cooling circulation pump 3 is connected to the lower water inlet of the condensing coil 2130 of the condensing tower 213, and the coolant water inlet is connected to the upper liquid outlet of the condensing coil 2130 of the condensing tower 213, turn on the power, set the cooling temperature, and press the refrigeration and circulation buttons. Then turn on the heating device 122, adjust the appropriate heating temperature, so that ethanol is in a micro-boiling state. As the heating temperature rises, the liquid ethanol gasifies into ethanol vapor, and after the ethanol vapor is cooled by the condensation tower 213, it condenses into ethanol and drips into the inner barrel body 11 along the guide barb structure 2120. The height of the ethanol liquid level in the inner barrel body 11 is always monitored through the observation window 1110. When the height of the ethanol liquid level in the inner barrel body 11 is about to reach the uppermost edge, the inner liquid outlet 113 of the inner barrel body 11 and the peristaltic pump 4 are opened to pump the ethanol that has passed through the filter screen 112 and dissolved with tobacco cellulose lipid impurities back to the gap 13 between the inner barrel body 11 and the outer barrel body 12. In the whole process, it is necessary to control the appropriate heating temperature and the pumping back flow rate of the peristaltic pump 4 so that the evaporation rate of the ethanol in the gap 13 is the same as the ethanol pumped back by the peristaltic pump 4, and a dynamic balance is achieved. After the tobacco cellulose impurity removal experiment is completed, the low-temperature cooling circulation pump 3, the heating power supply and the peristaltic pump 4 are turned off. After the residual ethanol solution in the tobacco cellulose is filtered out, the sealing cover 111 of the material inlet and outlet 110 is opened, and the tobacco cellulose in the inner barrel 11 is removed to obtain the tobacco cellulose intermediate with lipid impurities removed.

[0037] The above is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the content of the specification should still fall within the scope covered by the present invention.

Claims

1. A device for removing fat-soluble impurities from tobacco cellulose, characterized in that: It includes a barrel assembly, an upper cover assembly, a low-temperature cooling circulation pump and a peristaltic pump. The barrel assembly comprises an inner barrel and an outer barrel, wherein the inner barrel is installed in the outer barrel, the upper opening of the inner barrel is lower than the upper opening of the outer barrel, and a gap is formed between the peripheral wall and the bottom wall of the inner barrel and the outer barrel; The inner barrel body has a lower side wall with a material inlet and outlet penetrating the peripheral wall of the outer barrel body, and the material inlet and outlet has a sealing cover. A filter screen is provided on the bottom wall of the inner cavity of the inner barrel body, and the filter screen is flush with the lower edge of the material inlet and outlet. The bottom wall of the inner barrel body has an inner liquid outlet penetrating the bottom wall of the outer barrel body, and the inner liquid outlet is located below the filter screen. The outer barrel has a liquid outlet at its lower end, a liquid level gauge on its side wall to observe the liquid level in the gap between the outer barrel and the inner barrel, and a heating device at its lower part to heat the liquid in the gap; The upper cover assembly comprises an upper cover body which seals and covers the upper opening of the outer barrel body, the upper cover body is provided with a quick-opening feed port and a condensate return port, the condensate return port is located in the middle of the upper cover body, and a condensation tower is installed thereon, and a condensation coil is arranged in the condensation tower; The low-temperature cooling circulation pump is connected to both ends of the condensing coil to provide condensate therefor, the water inlet end of the peristaltic pump is connected to the inner liquid outlet of the inner barrel body, and the water outlet end is connected to the upper part of the gap.

2. The device for removing fat-soluble impurities from shredded tobacco cellulose according to claim 1, characterized in that: The upper cover body is sealed on the upper opening of the outer barrel body through a quick-opening sealing structure.

3. The device for removing fat-soluble impurities from shredded tobacco cellulose according to claim 1, characterized in that: The liquid level gauge is a communicating vessel-shaped liquid level gauge that connects the upper part and the lower part of the gap.

4. The device for removing fat-soluble impurities from shredded tobacco cellulose according to claim 3, characterized in that: The sealing cover is provided with an observation window.

5. The device for removing fat-soluble impurities from shredded tobacco cellulose as claimed in claim 1, characterized in that: The condensate return port is provided with a guide thorn structure toward the inner barrel body.

6. The device for removing fat-soluble impurities from shredded tobacco cellulose as claimed in claim 1, characterized in that: The lower part of the outer barrel is conical.

7. The device for removing fat-soluble impurities from shredded tobacco cellulose as claimed in claim 1, characterized in that: The filter is a 50-mesh filter.

8. The device for removing fat-soluble impurities from shredded tobacco cellulose as claimed in claim 1, characterized in that: The low-temperature cooling circulation pump is electrically connected to a thermal sensor, which is installed at the lower part of the outer barrel to sense the temperature of the liquid in the gap and enable the low-temperature cooling circulation pump to adjust the flow rate of the condensate in the condensing coil according to the temperature.

9. The device for removing fat-soluble impurities from shredded tobacco cellulose as claimed in claim 1, characterized in that: At least one braking pulley is provided at the lower part of the outer barrel.

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