CN211513619U

CN211513619U - Apparatus for separating insoluble substances

Info

Publication number: CN211513619U
Application number: CN201921806213.8U
Authority: CN
Inventors: 王益黄; 薛洋; 陈剑平; 胡嘉维; 吴宇航; 黄标; 樊功博; 傅源锋; 朱嬿
Original assignee: Guangdong Golden Leaf Technology Development Co Ltd
Current assignee: Guangdong Golden Leaf Technology Development Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-09-18
Anticipated expiration: 2029-10-24

Abstract

The application provides an apparatus for separating insolubles. The apparatus for separating insolubles comprises: the device comprises a filtering device, a material receiving device and a vacuumizing device; the filter device comprises a filter container and a filter screen which is arranged in the filter container and used for supporting filter materials, and an accommodating space is formed between the filter screen and the inner wall of the filter container; the filtering container is communicated with the vacuumizing device through the material receiving device. The application provides an equipment of separation undissolved substance can the flash separation undissolved substance.

Description

Apparatus for separating insoluble substances

Technical Field

The application relates to the field of insoluble substance content detection, in particular to equipment for separating insoluble substances.

Background

In determining the content of insoluble matter (e.g., fibers) in the slurry, it is necessary to separate the insoluble matter from the substances soluble in water or organic solvents. At present, the Soxhlet extraction method or the cloth bag method is commonly used by people, and the two methods have the problem of long time consumption. For example, in the case of detecting the fiber content in the raw material of the paper-making reconstituted tobacco, the Soxhlet extraction method generally requires 380 minutes, while the bag-type method is shorter than the Soxhlet extraction method, but reaches 260 minutes.

One of the reasons for this problem is that because in the suction filtration device commonly used now, filter material is attached on filter equipment's inner wall, and this kind of mode of setting leads to suction filtration efficiency to be lower, and suction filtration time is long.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a separation equipment of insoluble substance, work efficiency is high, shortens the separation by a wide margin and consumes time.

In order to achieve the above purpose of the present application, the following technical solutions are adopted:

an apparatus for separating insolubles, comprising: the device comprises a filtering device, a material receiving device and a vacuumizing device;

the filter device comprises a filter container and a filter screen which is arranged in the filter container and used for supporting filter materials, and an accommodating space is formed between the filter screen and the inner wall of the filter container;

the filtering container is communicated with the vacuumizing device through the material receiving device.

Preferably, the channels of the sieve are entirely covered by the filter material.

When the channels of the filter screen are completely covered by the filter material, the pressure difference between the upper part and the lower part of the filter material is more obvious, and the suction filtration speed is faster.

Preferably, the filtration vessel is a conical funnel.

Preferably, the filter material is filter paper or filter cloth.

Preferably, the screen comprises a funnel-shaped metal screen.

Funnels, filter paper, filter cloth, metal screens and the like are all readily available and low in cost.

Preferably, the material receiving device comprises a conical bottle type gas-liquid separator, and the conical bottle type gas-liquid separator comprises a conical bottle and a double-hole plug matched with the mouth of the conical bottle.

The gas-liquid separation can be realized simply, quickly and at low cost by using the conical flask type gas-liquid separator.

Preferably, the evacuation device comprises a vacuum pump.

Preferably, the drying device is further included, and the drying device is arranged in the accommodating space.

Heating device sets up in the clearance between filter screen and filter container's inner wall, can more directly effectual to filter screen, filtering material and insoluble substance heat drying, and speed is faster, and the time spent is shorter.

More preferably, the drying device comprises a resistance wire.

Further preferably, the resistance wire is externally coated with an insulating layer.

Preferably, the equipment for separating insoluble substances further comprises a spraying device for spraying liquid into the filtering container.

Set up spray set can improve equipment's degree of automation, better control processing procedure reduces the influence of manual operation to the detection accuracy degree, can improve the treatment effeciency simultaneously.

More preferably, the spraying device comprises a liquid container, a delivery pump and a spraying head which are communicated in sequence.

Further preferably, a liquid amount control valve is arranged on a pipeline between the delivery pump and the spray header.

Preferably, the spray head is a spherical shower head.

The spherical sprinkler nozzle can realize comprehensive spraying of slurry on the filtering material, the spraying effect is better, and the processing speed is faster.

Preferably, the showerhead is disposed above the filter material.

Preferably, the liquid container further comprises a heating device, and the heating device is arranged in the liquid container.

The purpose of the heating device is to obtain a spray solvent with a relatively high temperature, thereby accelerating the separation of soluble and insoluble materials.

Preferably, the filtration vessel is provided with a sealing lid.

More preferably, the sealing cover is in communication with the atmosphere through a first line.

Still further preferably, a first valve is provided on the first pipeline.

The switching between the atmospheric pressure and the negative pressure above the liquid level of the separated object in the sealing cover can be realized through the arrangement of the first pipeline and the opening and closing of the first valve.

Preferably, the vacuumizing device is communicated with the material receiving device through a second pipeline.

More preferably, a second valve is arranged on the second pipeline.

The vacuum pumping of the material receiving device can be started and stopped by opening and closing the second valve.

Preferably, the second pipeline is communicated with the first pipeline through a third pipeline, and the communicated position is arranged on the pipeline between the first valve and the sealing cover.

Through the arrangement of the second pipeline, the third pipeline, the first pipeline and the first valve, the space above the liquid level of the separated object can be vacuumized.

More preferably, a third valve is arranged on the third pipeline.

Preferably, the filtering container is communicated with the receiving device through a channel.

Further preferably, the second line communicates with the passage through a fourth line.

Through the arrangement of the second pipeline and the channel, the filtering container can be vacuumized from the lower part of the filtering container without passing through the material receiving device.

Still further preferably, a fourth valve is provided on the fourth line.

Preferably, a fifth valve is arranged on the channel.

Further preferably, the fifth valve is arranged on a channel between a connection point of the fourth pipeline and the channel and the receiving device.

Optionally, the receiving device is further provided with a discharging pipeline, and a discharging valve is arranged on the discharging pipeline.

The discharge pipeline and the discharge valve are arranged, so that the discharge of liquid and soluble substances in the material receiving device can be realized.

Compared with the prior art, the beneficial effect of this application includes:

improve traditional suction filtration device, through setting up the filter screen for filtering material forms the accommodation space with filter equipment's inner wall separation, increases the area of suction filtration, under evacuating device's effect, lets liquid and soluble thing can be quicker, a larger amount of clearance entering receiving device between filtering material and the inner wall of filter equipment, and then shortens the time that insoluble substance and soluble thing separation need cost by a wide margin.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 shows a schematic diagram of the apparatus for separating insolubles provided in example 1;

FIG. 2 is a schematic view showing a filtering apparatus of the apparatus for separating insolubles provided in example 1;

FIG. 3 is a schematic view showing a filtering apparatus of the apparatus for separating insolubles provided in example 2;

FIG. 4 is a schematic view showing the apparatus for separating insolubles provided in example 3;

FIG. 5 is a schematic view showing the apparatus for separating insolubles provided in example 4;

FIG. 6 is a schematic view showing the apparatus for separating insolubles provided in examples 5 and 6;

FIG. 7 shows a schematic diagram of the apparatus for separating insolubles provided in example 7.

Description of the main element symbols:

1-a filtration device; 10-a filtration vessel; 100-sealing cover; 11-a filter material; 12-a filter screen; 120-a contact portion; 121-an accommodating space; 2-a material receiving device; 20-a conical flask; 21-a two-hole plug; 22-discharge line; 23-a discharge valve; 3-a vacuum-pumping device; 4-drying device; 5-a spraying device; 50-liquid container; 51-a delivery pump; 52-a shower head; 53-liquid volume control valve; 6-a heating device; 70-a first conduit; 71-a second conduit; 72-a third conduit; 73-channel; 74-fourth line; 80-a first valve; 81-a second valve; 82-a third valve; 83-a fourth valve; 84-a fifth valve; 85-sixth valve.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example 1

Referring to fig. 1 and 2, an apparatus for separating insolubles, comprising: the device comprises a filtering device 1, a material receiving device 2 and a vacuumizing device 3; the filtering device 1 comprises a filtering container 10 and a filter screen 12 which is arranged in the filtering container 10 and used for supporting a filtering material 11, wherein the filtering container 10 is a conical funnel, the filtering material 11 is filtering paper, and the filter screen 12 is a funnel-shaped metal filter screen; the filter cloth 12 is in contact with the inner wall of the conical funnel and the contact portion 120 is annular and is connected with the inner wall of the conical funnel without a gap, so that an air pressure difference is formed above and below the interface formed by the filter cloth and the filter paper (in other embodiments, the manner of sealing the interface may be changed according to the shapes of the filter container and the filter cloth, and is not limited to the situation shown in fig. 2); a gap is formed between the part of the filter screen 12 provided with the mesh holes and the inner wall of the conical funnel, so that an accommodating space 121 is formed between the part and the inner wall of the conical funnel, and the suction filtration efficiency is improved; the position of the contact portion 120 is higher than the lowest point of the screen in the height direction; conical hopper passes through receiving device 2 and evacuating device 3 intercommunication, and receiving device 2 includes erlenmeyer flask formula vapour and liquid separator, erlenmeyer flask formula vapour and liquid separator include erlenmeyer flask 20 and with the bottleneck complex diplopore stopper 21 of erlenmeyer flask, evacuating device 3 is the vacuum pump.

The contact part 120 of the filter screen 12 and the inner wall of the funnel can be sealed by controlling the processing precision, and can also be sealed by sealing rings, sealing rubber strips and the like. During the suction filtration, filter paper laminating is on the filter screen, covers on its conical surface filtration pore whole, and the horizontal position at contact part 120 place does not set up the filtration pore to guarantee that filter paper liquid level top forms the negative pressure for normal atmospheric pressure, filter screen below under evacuating device's effect, under the effect of pressure differential, suction filtration that carries on that can be quick. This embodiment passes through the filter screen and keeps apart filter paper and funnel, forms accommodation space 121 for the whole conical surface of filter paper all becomes the filtering surface, has changed original filter paper laminating on the funnel surface, only has the mode of awl point position for main filtering surface, improves the efficiency of suction filtration, shortens the treatment time.

The use of the above-mentioned apparatus for separating insoluble matter will be described by taking the treatment of paper-making reconstituted tobacco pulp as an example.

And putting qualitative filter paper into a filter screen, wetting the qualitative filter paper with water, starting a vacuum pump, keeping a suction state all the time, slowly pouring the reconstituted tobacco slurry weighed in advance onto the filter paper, washing the container containing the slurry with water for three times, and pouring the water washed each time onto the filter paper. In the suction filtration process, the slurry can be continuously washed by water manually, and the filter cake can be taken out after the suction filtration is finished, namely the solid-liquid separation of the reconstituted tobacco slurry is completed.

Example 2

Referring to fig. 3, different from embodiment 1, the apparatus for separating insoluble substances further includes a drying device 4, the drying device 4 uses a resistance wire coated with an insulating layer, and the resistance wire is disposed in the accommodating space 121 between the filter screen 12 and the filter container 10.

It should be noted that the resistance wire may be connected to an external power source through a hole formed above one side of the wall of the filtration container 10, and an insulating sealing material is disposed in the hole.

It should be noted that the electrical connection circuit in the drawings is only for illustration and is not to be understood as a limitation on the positional relationship between the circuit and other components of the device.

When in use, after the filtration is finished, the power supply of the resistance wire is closed, and insoluble substances obtained by the filtration are heated until the insoluble substances are completely dried.

Example 3

Referring to fig. 4, in order to further improve the treatment efficiency, on the basis of the embodiment 2, the device for separating insoluble substances further comprises a spraying device 5, and the spraying device comprises a liquid container 50, a delivery pump 51 and a spraying head 52 which are sequentially communicated.

In a preferred embodiment, a liquid amount control valve 53 is provided on the piping between the transfer pump 51 and the shower head 52.

In another embodiment, the showerhead 52 is a spherical showerhead and is disposed above the filter material.

When the reconstituted tobacco slurry is used, qualitative filter paper is placed into a filter screen and is wetted by water, a vacuum pump is started and is kept in a pumping state all the time, the reconstituted tobacco slurry weighed in advance is slowly poured onto the filter paper, the container containing the slurry is washed by water for three times, and the water washed each time is also poured onto the filter paper. In the suction filtration process, the liquid amount control valve 53 and the delivery pump 51 are opened, water in the liquid container 50 is leached onto the slurry through the spray header 52, and the amount of the leached water can be adjusted by adjusting the liquid amount control valve 53. And after the suction filtration is finished, taking out the filter cake, thus completing the solid-liquid separation of the reconstituted tobacco slurry.

Example 4

Referring to fig. 5, in order to accelerate the spraying treatment and more rapidly separate the soluble substances from the insoluble substances, on the basis of example 3, the device for separating the insoluble substances further comprises a heating device 6, the heating device 6 is disposed in the liquid container 50, and the heating device 6 is preferably an electric heating wire, and the heating wire is connected with an external power supply.

On the basis of the embodiment 3, before leaching, the heating device 6 is turned on to heat the water in the liquid container 50, the water temperature is controlled to be 98-100 ℃, and then the slurry is leached. In the suction filtration process, the internal pressure of equipment for separating insoluble substances is kept between-10 KPa and-50 KPa, so that the suction filtration efficiency is improved.

Example 5

Referring to fig. 6, in order to further speed up the drying process, on the basis of embodiment 4, the apparatus for separating insoluble substances further includes:

the filtering container 10 is provided with a sealing cover 100, the sealing cover 100 is communicated with the atmosphere through a first pipeline 70, and a first valve 80 is arranged on the first pipeline 70; at this time, when the pipeline connected with the shower head 52 passes through the sealing cover 100, a hole is correspondingly arranged on the sealing cover 100, and a sealing ring is arranged between the hole and the pipeline.

In an alternative embodiment, the vacuum device 3 is communicated with the material receiving device 2 through a second pipeline 71, and a second valve 81 is arranged on the second pipeline 71.

Further, the second pipe 71 is communicated with the first pipe 70 through a third pipe 72, and the communicated position is provided on the pipe between the first valve 80 and the sealing cap 100, and the third pipe 72 is provided with a third valve 82.

Further, in an alternative embodiment, the filter container 10 is communicated with the receiving device 2 through a channel 73, the second pipeline 71 is communicated with the channel 73 through a fourth pipeline 74, a fourth valve 83 is arranged on the fourth pipeline 74, a fifth valve 84 is arranged on the channel 73, and the fifth valve 84 is arranged on the channel between the connecting point of the fourth pipeline 74 and the channel 73 and the receiving device 2.

When in use, the slurry is weighed to obtain M₁100.513 g; then, putting filter paper (dried and weighed and calculated to be 0.802g) into the filter screen 12, pouring the slurry into a filter container, covering the seal cover 100, opening the first valve 80, the second valve 81 and the fifth valve 84, closing the third valve 82 and the fourth valve 83 (the sixth valve 85 can not be arranged at the moment), starting the vacuum pump, rapidly aggregating the slurry into a slurry filter cake under the suction of the vacuum pump, and controlling the internal pressure of equipment for separating insoluble substances to be-10 KPa to-50 KPa for vacuum filtration. Closing a power switch of the heating device 6 in advance, heating water in the liquid container to 98-100 ℃ (because of the influence of the external environment, the water temperature is kept within the range, accurate control is not required), opening the liquid amount control valve 53, starting the delivery pump 51, enabling the liquid to reach the spray header 52 through a pipeline, continuously leaching slurry filter cakes by the liquid sprayed by the spray header 52, adjusting the liquid amount by adjusting the liquid amount control valve 53, and adjusting the vacuum degree by adjusting the second valve 81. After the leaching is continued for 20min, the delivery pump 51 is closed, the switch of the drying device 4 is closed, the drying device 4 starts to heat, and the temperature of the filter screen is kept at 80 ℃. At this time, a valve is switched, and preferably, a sixth valve 85 is arranged between the joint of the third pipeline 72 and the second pipeline 71 and the material receiving device; the first valve 80, the fifth valve 84 and the sixth valve 85 are closed, and the third valve 82 and the fourth valve 83 are opened, so that the pump is operatedThe vacuum device 3 extracts air in the filtering container 10, a negative pressure environment with the pressure value of-60 to-99 KPa is formed in the filtering container 10, so that the boiling point of liquid is reduced, the liquid can be quickly dried only at a lower temperature, and the drying process takes 10 min.

It is preferable to perform the rinsing operation while the vacuum evacuation device is kept in operation. In an alternative embodiment, the leaching operation may be performed in a state where the vacuum pumping device stops operating, or the leaching device and the vacuum pumping device operate alternately.

After cooling the fibres and filter paper were weighed to give 2.853g, M₂2.853g-0.802 g-2.051 g, the mass content of the fiber is M₂/M₁＝2.041％。

The above operation takes 43min in total.

Example 6

Referring to fig. 6, on the basis of embodiment 5, the receiving device 2 is further provided with a discharging pipeline 22, and a discharging valve 23 is arranged on the discharging pipeline 22.

When in use, the slurry is weighed to obtain M₁100.118 g; then, putting filter paper (dried and weighed and calculated as 0.805g) into the filter screen 12, pouring the slurry into a filter container, covering the seal cover 100, opening the first valve 80, the second valve 81 and the fifth valve 84, closing the discharge valve 23, the third valve 82 and the fourth valve 83, starting a vacuum pump, rapidly aggregating the slurry into a slurry filter cake under the suction of the vacuum pump, and controlling the internal pressure of equipment for separating insoluble substances to be-10 KPa to-50 KPa for vacuum filtration. Closing a power switch of the heating device 6 in advance, heating water in the liquid container to 98-100 ℃ (because of the influence of the external environment, the water temperature is kept within the range, accurate control is not required), opening the liquid amount control valve 53, starting the delivery pump 51, enabling the liquid to reach the spray header 52 through a pipeline, continuously leaching slurry filter cakes by the liquid sprayed by the spray header 52, adjusting the liquid amount by adjusting the liquid amount control valve 53, and adjusting the vacuum degree by adjusting the second valve 81. After continuously leaching for 10min, the delivery pump 51 is closed, the switch of the drying device 4 is closed, the drying device 4 starts to heat, and the temperature of the filter screen is kept at 150 ℃. At this point, the switching valve, preferably,a sixth valve 85 is arranged between the connecting part of the third pipeline 72, the fourth pipeline 74 and the second pipeline 71 and the material receiving device; the first valve 80, the fifth valve 84 and the sixth valve 85 are closed, the third valve 82 and the fourth valve 83 are opened, so that the vacuumizing device 3 extracts air in the filtering container 10, a negative pressure environment with the pressure value of-95 KPa to-99 KPa is formed in the filtering container 10, the boiling point of liquid is reduced, the liquid can be quickly dried only at a lower temperature, and the drying process lasts for 20 min.

After cooling, the fibres and filter paper were weighed to give a weight of 2.839g, M₂2.839g-0.805 g-2.034 g, the mass content of the fiber is M₂/M₁＝2.032％。

The liquid and solubles can be discharged for further processing through discharge line 22 and discharge valve 23.

The above operation takes 41min in total.

Example 7

Referring to fig. 7, the difference from embodiment 6 is that the connection points of the third pipeline 72, the fourth pipeline 74 and the second pipeline 71 are disposed between the second valve 81 and the vacuum-pumping device 3. At this point, the sixth valve 85 may be eliminated.

When in use, the slurry is weighed to obtain M₁101.028 g; then, putting filter paper (dried and weighed and calculated as 0.803g) into the filter screen 12, pouring the slurry into a filter container, covering the sealing cover 100, opening the first valve 80, the second valve 81 and the fifth valve 84, closing the discharge valve 23, the third valve 82 and the fourth valve 83, starting a vacuum pump, rapidly aggregating the slurry into a slurry filter cake under the suction of the vacuum pump, and controlling the internal pressure of equipment for separating insoluble substances to be-10 KPa to-50 KPa for vacuum filtration. The power switch of the heating device 6 is closed in advance, water in the liquid container is heated to 98-100 ℃, the liquid amount control valve 53 is opened, the delivery pump 51 is started, liquid reaches the spray header 52 through the pipeline, liquid sprayed by the spray header 52 continuously leaches slurry filter cakes, the liquid amount is adjusted by adjusting the liquid amount control valve 53, and the vacuum degree can be adjusted by adjusting the second valve 81. After the continuous leaching is carried out for 15min, the conveying pump 51 is closed, the switch of the drying device 4 is closed, the drying device 4 starts to be heated, and the temperature of the filter screen is kept at 120 DEG C. At the moment, the valves are switched, the first valve 80 and the fifth valve 84 are closed, and the third valve 82 and the fourth valve 83 are opened, so that the vacuumizing device 3 extracts air in the filtering container 10, a negative pressure environment with the pressure value of-95 KPa to-99 KPa is formed in the filtering container 10, the boiling point of liquid is reduced, the liquid can be quickly dried only at a lower temperature, and the drying process takes 15 min.

After cooling, the fibres and filter paper were weighed to give a weight of 2.858g, M₂2.858g-0.803 g-2.055 g, the mass content of the fiber is M₂/M₁＝2.034％。

The above operation takes 40 min.

In order to better prove the advantages of the device for separating the insoluble substances provided by the application, taking the detection of the fiber content in the raw materials of the paper-making reconstituted tobacco as an example, 3 pulp samples are randomly selected, and the device for separating the insoluble substances provided by the application example 5, a cloth bag method and a Soxhlet extractor method are respectively used for carrying out 8 times of tests, so as to obtain fiber concentration data as shown in the following tables 1, 2 and 3:

TABLE 1 sample test data

TABLE 2 sample II test data

TABLE 3 sample number three test data

As can be seen from the data listed in tables 1 to 3, the equipment for separating the insoluble substances has a good detection effect, and the detection result is accurate and reliable.

The detection method of the soxhlet extractor is roughly as follows:

and taking the same slurry, filtering by using the dried and weighed filter paper, taking out the filter paper containing the slurry after filtering, and binding to prevent the slurry from leaking. Placing the filter paper bag into a Soxhlet extractor, and circularly extracting with hot water for continuous extraction. Taking out the filter paper containing the filter cake, untying the binding wire on the filter paper, uniformly spreading the slurry agglomerated on the filter paper, putting the filter paper and the slurry on an aluminum foil dish, and then putting the aluminum foil dish and the slurry in a drying oven at the temperature of 105 +/-1 ℃ for drying. And after continuous drying, taking out and cooling, weighing, subtracting the weight of the filter paper by calculation to obtain the weight of the slurry, and calculating (weight of the oven-dried slurry/wet weight of the slurry) to obtain the mass content of the slurry fiber in the reconstituted tobacco slurry.

The general process of the cloth bag method is as follows:

pouring the slurry into a 200-mesh cloth bag, tying the opening of the cloth bag, kneading the slurry of the cloth bag by hand and squeezing the slurry, and then taking the cloth bag into tap water for repeatedly washing, kneading and squeezing. After continuous operation, the slurry in the cloth bag is taken out, placed on the filter paper after drying and weighing, the slurry agglomerated on the filter paper is uniformly spread out, placed on an aluminum foil dish together with the filter paper and the slurry, and then placed in a drying oven with the temperature of 105 +/-1 ℃ for drying. And after continuous drying, taking out and cooling, weighing, subtracting the weight of the filter paper by calculation to obtain the weight of the slurry, and calculating (weight of the oven-dried slurry/wet weight of the slurry) to obtain the mass content of the slurry fiber in the reconstituted tobacco slurry.

The apparatus for separating insoluble materials provided in example 5 of the present application was used for 5 tests using a cloth bag method and a Soxhlet extractor method, and the time taken for the tests was recorded, and the results are shown in Table 4 below:

TABLE 4 comparison of the times used for the different tests

As is clear from Table 4 above, the apparatus for separating insoluble substances provided in the present application has a significantly shortened detection time.

As can be seen from the data in tables 1 to 3, the device for separating insoluble substances provided by the application can rapidly separate the insoluble substances. The method for separating the insoluble substances and the method for detecting the content of the insoluble substances can greatly shorten the detection time on the premise of ensuring the detection accuracy, have high detection efficiency and can well meet the actual requirements.

The device and the method for separating insoluble substances provided by the application change the common washing filtration into high-temperature washing and vacuum filtration in a preferred embodiment. The washing process is actually an extraction process, and the dissolution of the solute is related to the temperature, and the higher the temperature is, the faster the dissolution speed of the solute is. The original cloth bag washing is normal-temperature washing, and the washing effect is common. The improved high-temperature washing has the advantages that the dissolving speed of soluble matters in the pulp is improved due to the increase of the temperature, and the washing effect is greatly enhanced. In the preferred embodiment of the present application, after the slurry is filtered to form a filter cake, the slurry is continuously sprayed and washed with boiling water, and the washing effect is very good. In the washing process, the original solid-liquid separation mode is normal-pressure gravity filtration, the filtration speed is low, and the filtration effect is poor. After the vacuum filtration is changed, the filtration effect is obviously enhanced, and the filtration speed is obviously improved. The efficiency of removing soluble substances by washing and filtering is obviously improved, and the time consumption is obviously reduced. The improved high-temperature washing and vacuum filtration only needs about 15min in total to achieve the original soluble substance removing effect.

In addition, the original oven drying is improved into high-temperature heating and vacuum drying. The original operation is to take out the slurry and put the slurry into a drying oven with 105 +/-2 ℃ for hot air drying, wherein the drying time is generally 180 min. In a preferred embodiment of the present application, electrical heating is used, directly heating the screen supporting the slurry and transferring the heat to the slurry and the entire sealed containment space by conduction. At the moment, the sealed space is kept in a vacuumizing state, through the operation, the atmospheric pressure of the space where the slurry is located is kept in a low vacuum state, and water in the slurry is boiled and evaporated quickly, so that the drying speed is greatly accelerated. In this operation, the slurry can be completely dried quickly.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. An apparatus for separating insolubles, comprising: the device comprises a filtering device, a material receiving device, a drying device and a vacuumizing device;

the filter device comprises a filter container and a filter screen which is arranged in the filter container and used for supporting filter materials, and an accommodating space is formed between the filter screen and the inner wall of the filter container; the drying device is arranged in the accommodating space;

2. An apparatus for separating insolubles according to claim 1 wherein the passages of said screen are entirely covered by said filter material.

3. An apparatus for separating insolubles according to claim 1 wherein the filtration vessel is a conical funnel.

4. The apparatus for separating insolubles according to claim 1, wherein the filter material is filter paper or filter cloth.

5. An apparatus for separating insolubles according to claim 1 wherein said screen comprises a funnel-shaped metal screen.

6. The apparatus for separating insolubles according to claim 1 wherein said receiving means comprises a conical flask type gas-liquid separator comprising a conical flask and a double-hole plug fitted to the mouth of said conical flask.

7. An apparatus for separating insolubles according to claim 1, wherein said vacuum means comprises a vacuum pump.

8. An apparatus for separating insolubles according to claim 1 wherein said drying means comprises a resistance wire.

9. An apparatus for separating insolubles according to claim 8 wherein the resistance wire is externally coated with an insulating layer.

10. An apparatus for separating insolubles according to claim 1 further comprising a spraying means for spraying a liquid into said filtration vessel.

11. The apparatus for separating insolubles according to claim 10, wherein said spray means comprises a liquid container, a transfer pump and a spray header which are connected in series.

12. The apparatus for separating insolubles according to claim 11, wherein a liquid amount control valve is provided in a piping between said transfer pump and said shower head.

13. The apparatus for separating insolubles according to claim 11 wherein said spray header is a ball shower head.

14. An apparatus for separating insolubles according to claim 11 wherein said spray header is disposed above said filter material.

15. An apparatus for separating insolubles according to claim 11 further comprising a heating device disposed within said liquid holding vessel.

16. An apparatus for separating insolubles according to claim 1 wherein the filtration vessel is provided with a sealing cover.

17. An apparatus for separating insolubles according to claim 16 wherein said seal gland is in communication with the atmosphere via a first conduit.

18. An apparatus for separating insolubles according to claim 17 wherein the first conduit is provided with a first valve.

19. The apparatus for separating insolubles according to claim 18 wherein said vacuum means is in communication with said receiver means via a second conduit.

20. An apparatus for separating insolubles according to claim 19 wherein a second valve is provided in said second conduit.

21. The apparatus for separating insolubles according to claim 19, wherein said second line communicates with said first line through a third line, and the location of communication is provided on the line between said first valve and said sealing cover.

22. An apparatus for separating insolubles according to claim 21 wherein a third valve is provided in said third conduit.

23. An apparatus for separating insolubles according to claim 19 wherein said filter vessel is in communication with said receiver means by a passage.

24. An apparatus for separating insolubles according to claim 23 wherein said second conduit communicates with said passage via a fourth conduit.

25. An apparatus for separating insolubles according to claim 24 wherein a fourth valve is provided in said fourth conduit.

26. An apparatus for separating insolubles according to claim 24 wherein said passage is provided with a fifth valve.

27. An apparatus for separating insolubles according to claim 26 wherein said fifth valve is disposed on a passage between a connection point of said fourth conduit to said passage and said receiving means.

28. An apparatus for separating insolubles according to any one of claims 1 to 27 wherein the receiving device is further provided with a discharge pipe, and a discharge valve is provided on the discharge pipe.