Purification device for microcrystalline cellulose

Abstract

The utility model discloses a microcrystalline cellulose purification device, and particularly relates to the technical field of microcrystalline cellulose purification, the microcrystalline cellulose purification device comprises a liquid storage tank, the top of the liquid storage tank is provided with a filtering device, the filtering device comprises a filter shell, the filter shell is internally provided with a main shaft, the outer wall of the main shaft is provided with a spiral filter disc, and the spiral filter disc is provided with a water inlet and a water outlet. The filter device is arranged on the outer wall of the main shaft, a liquid inlet pipe is fixed on one side of the bottom end of the filter shell, a waste discharge pipe is arranged on one side of the top end of the filter shell, and a pore plate is fixed inside the filter shell. Impurities can be discharged in the process of filtering a cellulose solution, the spiral filter disc does not accumulate the impurities, the problem that a filtering structure is blocked by the impurities is solved, the problem that the filtering structure is cleaned after shutdown is avoided, and the microcrystalline cellulose purification efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of microcrystalline cellulose purification, and particularly relates to a microcrystalline cellulose purification device. BACKGROUND

[0002] Microcrystalline cellulose is a kind of cellulose powder with low degree of polymerization and certain crystallinity formed by natural cellulose through inorganic acid hydrolysis, and is widely used in medicine, food, cosmetics and light chemical industry, and in pharmaceutical industry, it has become the most common and classic auxiliary material in solid preparations such as tablets, granules, capsules and controlled-release preparations.

[0003] The raw materials for making microcrystalline cellulose mainly include cotton linters, rice husks, pine needles, hemp stalks, Indian bamboo, orange peel and jute, etc., and the stock solution formed after crushing the raw materials needs to be acidolysed or enzymatically hydrolysed to obtain a cellulose solution, which contains a large amount of impurities, and the cellulose solution can only be obtained after being filtered and washed to obtain relatively pure microcrystalline cellulose powder, and the existing microcrystalline cellulose powder production and purification equipment can efficiently treat the stock solution, but there are still some deficiencies in actual use, and in the process of filtering the cellulose solution, impurities adhere to the filter core, resulting in gradually poor filtering effect of the filtering device, and the filter core of the filtering device needs to be replaced regularly, which will affect the purification of the cellulose solution during the shutdown process. SUMMARY

[0004] The utility model aims at providing a kind of microcrystalline cellulose's purification purification device to solve the above-mentioned deficiencies in the prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of microcrystalline cellulose's purification purification device, including liquid storage tank, the top of the liquid storage tank is provided with filter device, the filter device includes: filter housing, the inside of the filter housing is provided with main shaft, the outer wall of the main shaft is provided with spiral filter sheet, the bottom end side of the filter housing is fixed with liquid inlet pipe, the top end side of the filter housing is provided with waste pipe, the inside of the filter housing is fixed with orifice plate, the top of the filter housing is provided with servo motor for driving main shaft rotation, the bottom of the filter housing is open, the top of the liquid storage tank is provided with feed inlet corresponding to the opening.

[0007] Preferably, one side of the liquid storage tank is provided with a transfer pump, the liquid inlet of the transfer pump is connected with a conduit, the discharge end of the transfer pump is connected with a transfer pipe, the end of the transfer pipe is fixed with an atomizing nozzle, and the end of the atomizing nozzle is connected with a filter box.

[0008] Preferably, the inside of the filter box is provided with multiple layers of filter plates, one side of the bottom end of the filter box is connected with a liquid discharge pipe, the end of the liquid discharge pipe is provided with a liquid discharge pump, the liquid outlet of the liquid discharge pump is provided with a material guide pipe, and the end of the material guide pipe is provided with a storage box.

[0009] Preferably, one side of the storage box is provided with a conveying pump, the liquid inlet of the conveying pump is connected with a liquid outlet pipe, the liquid outlet of the conveying pump is connected with a conveying pipe, and the end of the conveying pipe is provided with a filter barrel.

[0010] Preferably, the inside of the filter barrel is provided with a porous filter membrane core, the porous filter membrane core comprises a filter pipe, the top end of the porous filter membrane core is provided with a socket, and one side of the bottom end of the filter barrel is provided with a discharge pipe.

[0011] Preferably, one side of the filter pipe is provided with a pipe body, and one side of the pipe body is provided with a supporting rod.

[0012] Preferably, a through hole is formed in the top end of the filter barrel, a sealing sleeve is inserted into the through hole, a plurality of sealing rings are fixed to the top end of the sealing sleeve, and the end of the conveying pipe penetrates through the sealing rings and the sealing sleeve and is inserted into the socket downwardly.

[0013] In the above technical solution, the technical effects and advantages of the present application are provided:

[0014] By setting the filter device, the filter device adopts a spiral filter structure, a continuous spiral filter sheet is arranged on the outer wall of the main shaft, the cellulose solution flows to the spiral filter sheet, the spiral filter sheet filters the cellulose solution, and the impurities filtered out are conveyed upwardly along with the rotation of the main shaft and discharged from the filter device, which is beneficial to discharging the impurities in the process of filtering the cellulose solution, the spiral filter sheet will not accumulate impurities, the problem of clogging of the filter structure by impurities is solved, the problem of stopping and cleaning the filter structure is avoided, and the efficiency of microcrystalline cellulose purification is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is an appearance view of the filter device of the present application;

[0018] Figure 3 It is a structural schematic diagram of the porous filter membrane core of the present application;

[0019] Figure 4 For Figure 1 A enlarged view of the middle A part.

[0020] Explanation of reference signs:

[0021] 1, filter housing; 2, liquid inlet pipe; 3, main shaft; 4, servo motor; 5, spiral filter piece; 6, hole plate; 7, feed inlet; 8, liquid storage tank; 9, conduit; 10, transfer pump; 11, transfer pipe; 12, atomizing nozzle; 13, filter plate; 14, filter box; 15, liquid discharge pump; 16, liquid discharge pipe; 17, material guide pipe; 18, storage tank; 19, liquid outlet pipe; 20, conveying pump; 21, conveying pipe; 22, filter barrel; 23, porous filter membrane core; 231, filter pipe; 232, support rod; 233, pipe body; 234, socket; 24, discharge pipe; 25, waste discharge pipe; 26, sealing sleeve; 27, sealing ring. DETAILED DESCRIPTION

[0022] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with the drawings.

[0023] The utility model provides a kind of purification and purification device for microcrystalline cellulose as Figure 1 As shown in a kind of purification and purification device for microcrystalline cellulose, including liquid storage tank 8, the top of liquid storage tank 8 is provided with filter device, and filter device includes: filter housing 1, the inside of filter housing 1 is provided with main shaft 3, the outer wall of main shaft 3 is provided with spiral filter piece 5, the bottom end of filter housing 1 one side is fixed with liquid inlet pipe 2, the top end of filter housing 1 one side is provided with waste discharge pipe 25, the inside of filter housing 1 is fixed with hole plate 6, the top of filter housing 1 is provided with servo motor 4 for driving main shaft 3 rotation, the bottom of filter housing 1 is open, the top of liquid storage tank 8 is opened with the feed inlet 7 corresponding to opening;In the embodiment, the raw liquid obtained after raw material crushing treatment is flowed into filter housing 1 by liquid inlet pipe 2, then falls on spiral filter piece 5 after entering filter housing 1, servo motor 4 is started, and servo motor 4 drives main shaft 3 to rotate continuously, main shaft 3 rotates with higher rotation, and the impurities accumulated on the top of spiral filter piece 5 are thrown to the inner wall of filter housing 1 and move upwards under the pushing action of spiral filter piece 5, and finally discharged from waste discharge pipe 25, and the filtered raw liquid flows downwards through hole plate 6 and flows into liquid storage tank 8 for storage through feed inlet 7;It needs to be noted that the middle part of hole plate 6 is fixed with bearing, and the end of main shaft 3 penetrates the inner bushing of bearing, and under the support of bearing, main shaft 3 rotates more stably.

[0024] As Figure 1As shown, one side of the storage tank 8 is provided with a transfer pump 10, the liquid inlet of the transfer pump 10 is connected with a conduit 9, the discharge end of the transfer pump 10 is connected with a transfer pipe 11, the end of the transfer pipe 11 is fixed with an atomizing nozzle 12, the end of the atomizing nozzle 12 is connected with a filter tank 14; the inside of the filter tank 14 is provided with a plurality of filter plates 13, one side of the bottom end of the filter tank 14 is connected with a liquid discharge pipe 16, the end of the liquid discharge pipe 16 is provided with a liquid discharge pump 15, the liquid outlet of the liquid discharge pump 15 is provided with a material guide pipe 17, the end of the material guide pipe 17 is provided with a storage tank 18; when the cellulose solution is filtered for the second time, the obviously large particle impurities in the cellulose solution do not exist, the tiny particle impurities exist are extracted to the atomizing nozzle 12 by the transfer pump 10, and are sprayed in the inside of the filter tank 14 in the form of atomization, the filter plates 13 in the inside of the filter tank 14 carry out multi-layer filtration on the cellulose solution, so that the purification is further completed, and the cellulose solution obtained after the second filtration is extracted into the storage tank 18 by the liquid discharge pump 15 for storage.

[0025] As shown in Figure 1 and Figure 3 One side of the storage tank 18 is provided with a conveying pump 20, the liquid inlet of the conveying pump 20 is connected with a liquid outlet pipe 19, the liquid outlet of the conveying pump 20 is connected with a conveying pipe 21, and the end of the conveying pipe 21 is provided with a filter barrel 22; the inside of the filter barrel 22 is provided with a porous filter membrane core 23, the porous filter membrane core 23 includes a filter pipe 231, the top end of the porous filter membrane core 23 is provided with a socket 234, and one side of the bottom end of the filter barrel 22 is provided with a discharge pipe 24; it should be noted that the original solution forms a cellulose solution after being filtered by the filtering device once, and the cellulose solution can filter out finer impurities after being filtered for multiple times, and in the process of the third filtration, the cellulose solution is extracted by the conveying pump 20, the cellulose solution is conveyed into the filter pipe 231 through the conveying pipe 21, the cellulose solution is sprayed at high pressure, the filter pipe 231 has finer filter holes, and the finer impurities in the cellulose solution can be filtered out, and the cellulose solution obtained by filtration is discharged from the discharge pipe 24, and the cellulose solution discharged from the discharge pipe 24 can be conveyed to an existing purification instrument outside to complete the final purification treatment.

[0026] One side of the filter pipe 231 is provided with a pipe body 233, and one side of the pipe body 233 is provided with a supporting rod 232; during installation of the porous filter membrane core 23, the whole porous filter membrane core 23 is supported by the supporting rod 232, so that the stability of the porous filter membrane core 23 is improved.

[0027] As shown in Figure 4As shown, the top end of the filter barrel 22 is provided with a through hole, a sealing sleeve 26 is inserted in the through hole, a plurality of sealing rings 27 are fixed at the top end of the sealing sleeve 26, and the end of the conveying pipe 21 penetrates through the sealing rings 27 and the sealing sleeve 26 and is inserted into the socket 234 downwardly; the conveying pump 20 adopts a high-power high-pressure pump, and the liquid sprayed from the conveying pipe 21 has a large water pressure, so that during the installation of the conveying pipe 21, the sealing treatment of the conveying pipe 21 and the filter barrel 22 is required, and the sealing rings 27 and the sealing sleeve 26 in the embodiment enhance the sealing performance between the conveying pipe 21 and the filter barrel 22, and the liquid sprayed from the conveying pipe 21 is directly sprayed into the filter pipe 231, and will not overflow to the outside of the filter barrel 22.

[0028] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. A purification apparatus for purifying microcrystalline cellulose, characterized by: The utility model provides a filter device, including liquid storage tank (8), the top of liquid storage tank (8) is provided with filter device, filter device includes: filter shell (1), the inside of filter shell (1) is provided with main shaft (3), the outer wall of main shaft (3) is provided with spiral filter piece (5), the bottom end one side of filter shell (1) is fixed with liquid inlet pipe (2), the top one side of filter shell (1) is provided with waste pipe (25), the inside of filter shell (1) is fixed with orifice plate (6), the top of filter shell (1) is provided with servo motor (4) for driving main shaft (3) rotation, the bottom of filter shell (1) is open, the top of liquid storage tank (8) is opened with the feed inlet (7) corresponding with opening.

2. A device for purifying microcrystalline cellulose according to claim 1, characterized in that: One side of the liquid storage tank (8) is provided with a transfer pump (10), the liquid inlet of the transfer pump (10) is connected with a conduit (9), the discharge end of the transfer pump (10) is connected with a transfer pipe (11), the end of the transfer pipe (11) is fixed with an atomizing nozzle (12), the end of the atomizing nozzle (12) is connected with a filter box (14).

3. A device for purifying microcrystalline cellulose according to claim 2, characterized in that: The inside of the filter box (14) is provided with a plurality of filter plates (13), one side of the bottom end of the filter box (14) is connected with a drain pipe (16), the end of the drain pipe (16) is provided with a drain pump (15), the outlet of the drain pump (15) is provided with a guide pipe (17), the end of the guide pipe (17) is provided with a storage tank (18).

4. A device for purifying microcrystalline cellulose according to claim 3, characterized in that: One side of the storage tank (18) is provided with a conveying pump (20), the liquid inlet of the conveying pump (20) is connected with a liquid outlet pipe (19), the liquid outlet of the conveying pump (20) is connected with a conveying pipe (21), the end of the conveying pipe (21) is provided with a filter barrel (22).

5. A device for purifying microcrystalline cellulose according to claim 4, characterized in that: The inside of the filter barrel (22) is provided with a porous filter membrane core (23), the porous filter membrane core (23) includes a filter pipe (231), the top end of the porous filter membrane core (23) is provided with a socket (234), one side of the bottom end of the filter barrel (22) is provided with a discharge pipe (24).

6. A device for purifying microcrystalline cellulose according to claim 5, characterized in that: One side of the filter pipe (231) is provided with a pipe body (233), one side of the pipe body (233) is provided with a support rod (232).

7. A device for purifying microcrystalline cellulose according to claim 4, characterized in that: The top end of the filter barrel (22) is provided with a through hole, the sealing sleeve (26) is inserted into the through hole, the top end of the sealing sleeve (26) is fixed with a plurality of sealing rings (27), the end of the conveying pipe (21) penetrates the sealing ring (27) and the sealing sleeve (26) and is inserted into the socket (234) downwardly.

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