CN214050575U - Carbon leakage treatment device of filter press - Google Patents

Abstract

The utility model discloses a pressure filter carbon leakage treatment device, which comprises a decoloration kettle and a pressure filter which are sequentially communicated, wherein filtrate discharged by the pressure filter has a precipitation temperature for precipitating solid materials, the pressure filter carbon leakage treatment device also comprises a collecting tank and a crystallization kettle, the collecting tank is provided with a first pipeline and a second pipeline which are communicated with the pressure filter, the collecting tank is provided with a heating element, so that the temperature of the filtrate is greater than the precipitation temperature, and the first pipeline is provided with a first valve; the crystallization kettle is communicated with the first pipeline through a third pipeline, the third pipeline is arranged between the pressure filter and the first valve, and the third pipeline is provided with a second valve; when the first valve is opened and the second valve is closed, filtrate is circulated along the pressure filter and the collecting tank, and when the first valve is closed and the second valve is opened, the filtrate enters the crystallization kettle to realize crystallization. The collection tank can be used for treating the filtrate, so that the temperature of the filtrate is kept above the precipitation temperature, and the situation that the material is not easy to clean after precipitation is avoided.

Description

Carbon leakage treatment device of filter press

Technical Field

The utility model belongs to the medicine production equipment field, concretely relates to pressure filter leaks carbon processing apparatus.

Background

Almost all varieties are decolorized by using activated carbon in the chemical generation process, most of the activated carbon decolorization and hot filtration processes use a filter pressing mode, the filter pressing mode has the advantages that solvent loss is basically avoided, carbon leakage is inevitably generated in the filter pressing process, and carbon leakage materials need to be collected and then returned to a decolorization kettle for filter pressing again in order to reduce material loss. Compared with a suction filtration mode, the method is not easy to cause pollution, and is suitable for large-scale production, in particular large-scale continuous production.

In order to reduce the carbon leakage amount in the materials, a pressure gas filter pressing mode or a chemical pump filter pressing mode is usually adopted, but the pressure gas filter pressing mode is to open a decoloring kettle, return the carbon leakage materials to the decoloring kettle and filter press the carbon leakage materials by pressure gas again, and the materials are separated out in a pressure filter to cause the blockage of the pressure filter in the filter pressing process; and adopt the chemical industry pump pressure filtration mode, although leak carbon filtrate and return to the decoloration cauldron in-process and need not stop the pump, still can cause the material to precipitate out in the collecting vessel and be difficult for the clearance in the collection process, need return the decoloration cauldron after heating the feed liquid and dissolving again, take a lot of trouble.

SUMMERY OF THE UTILITY MODEL

To foretell not enough, the utility model provides a pressure filter leaks carbon processing apparatus can reduce the hourglass carbon volume in the material.

The utility model discloses a realize through following technical scheme:

a pressure filter carbon leakage treatment device comprises a decoloring kettle and a pressure filter which are sequentially communicated, wherein filtrate discharged by the pressure filter has a precipitation temperature for precipitating solid materials, the pressure filter carbon leakage treatment device also comprises a collection tank and a crystallization kettle, the collection tank is provided with a first pipeline and a second pipeline which are communicated with the pressure filter, the filtrate entering the collection tank from the pressure filter through the first pipeline can flow back to the pressure filter through the second pipeline, the collection tank is provided with a heating element so that the temperature of the filtrate is higher than the precipitation temperature, and the first pipeline is provided with a first valve; the crystallization kettle is communicated with the first pipeline through a third pipeline, the third pipeline is arranged between the pressure filter and the first valve, and the third pipeline is provided with a second valve; when the first valve is opened and the second valve is closed, filtrate is circulated along the pressure filter and the collecting tank, and when the first valve is closed and the second valve is opened, the filtrate enters the crystallization kettle to realize crystallization.

Further, the decoloring kettle is communicated with the filter press through a fourth pipeline, and the second pipeline is communicated to the fourth pipeline.

Further, the fourth pipeline comprises a fourth lower pipeline communicated with the decoloring kettle and the filter press and a fourth upper pipeline communicated with the decoloring kettle and the fourth lower pipeline, the second pipeline is communicated to the fourth upper pipeline, and the fourth upper pipeline is positioned on two sides of the second pipeline and is provided with a third valve and a fourth valve respectively.

Further, the collection tank still includes the chemical pump that sets up in the second pipeline.

Further, the heating member is a jacket arranged on the inner wall of the collecting tank.

Further, a heating medium is arranged in the jacket.

The utility model discloses following beneficial effect has:

1. the decoloration kettle can decolor varieties in the chemical generation process by using active carbon, filtrate subjected to decoloration enters a filter press to be subjected to solid-liquid separation so as to remove carbon leakage in the filtrate, the filtrate can flow out of the filter press after being subjected to filter pressing by the filter press, but a small amount of carbon leakage is remained after one-time filter pressing, the amount of carbon leakage in the filtrate is gradually reduced by continuously circulating between a collection tank and the filter press, the collection tank can treat the filtrate in the circulating process of the collection tank so that the temperature of the filtrate is kept above the precipitation temperature, the problem that the material is not easy to clean after precipitation is avoided, the filter press is blocked after precipitation in the filter press is avoided, the filtrate is conveyed to a crystallization kettle for crystallization after carbon-free clarification for multiple times, pollution is avoided, continuous production can be realized, the production period is reduced, and the operation process is simplified, the labor intensity is reduced.

2. The filtrate in the collecting tank flows to the fourth pipeline when flowing back through the second pipeline, the decoloring kettle and the filter press are also communicated through the fourth pipeline, and the filtrate can be treated along the same processing line after flowing back, so that the operation flow is simplified.

3. The filtrate in the collection tank can flow back to a decoloring kettle or a filter press according to actual conditions for different treatments, so that the filtrate is carbon-free and clear and is convenient for subsequent crystallization.

4. The jacket can realize heat preservation, ensures that the temperature of the filtrate in the collecting pipe is higher than the precipitation temperature, and is internally provided with a heating medium for further improving the temperature of the filtrate in the collecting tank so as to heat the filtrate.

Drawings

FIG. 1 is a schematic diagram illustrating an exemplary embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating another exemplary embodiment of the present invention.

In the figure: 1. the device comprises a collecting tank, 11, a first pipeline, 12, a first valve, 13, a second pipeline, 2, a crystallization kettle, 21, a third pipeline, 22, a second valve, 3, a decoloring kettle, 31, a fourth pipeline, 311, a fourth upper pipeline, 312, a fourth lower pipeline, 313, a third valve, 314, a fourth valve, 4, a filter press, 5 and a chemical pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, i.e. the traveling direction of the product, and should not be considered as limiting.

In addition, it should be noted that the dynamic terms such as "relative movement" mentioned in the embodiments of the present invention include not only a change in position but also a movement in which a state changes without a relative change in position such as rotation or rolling.

Finally, it is noted that when an element is referred to as being "on" or "disposed" to another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

As shown in fig. 1 and fig. 2, a pressure filter 4 carbon leak treatment device comprises a decolorization kettle 3 and a pressure filter 4 which are communicated in sequence, wherein filtrate discharged by the pressure filter 4 has a precipitation temperature for precipitating solid materials, and further comprises a collection tank 1 and a crystallization kettle 2, wherein the collection tank 1 is provided with a first pipeline 11 and a second pipeline 13 which are communicated with the pressure filter 4, the filtrate entering the collection tank 1 from the pressure filter 4 through the first pipeline 11 can flow back to the pressure filter 4 through the second pipeline 13, the collection tank 1 is provided with a heating element so that the temperature of the filtrate is higher than the precipitation temperature, and the first pipeline 11 is provided with a first valve 12; the crystallization kettle 2 is communicated with the first pipeline 11 through a third pipeline 21, the third pipeline 21 is arranged between the pressure filter 4 and the first valve 12, and the third pipeline 21 is provided with a second valve 22; wherein, when the first valve 12 is opened and the second valve 22 is closed, filtrate is circulated along the pressure filter 4 and the collecting tank 1, and when the first valve 12 is closed and the second valve 22 is opened, the filtrate is led into the crystallization kettle 2 to realize crystallization; the decoloration kettle 3 can decolor varieties in the chemical generation process by using active carbon, filtrate subjected to decoloration enters the filter press 4 to be subjected to solid-liquid separation treatment so as to remove carbon leakage in the filtrate, the filtrate can flow out of the filter press 4 after being subjected to filter pressing treatment by the filter press 4, but a small amount of carbon leakage is remained after being subjected to filter pressing for one time, the carbon leakage amount in the filtrate is gradually reduced by continuously circulating between the collection tank 1 and the filter press 4, the filtrate can be treated by the collection tank 1 in the circulating process of the collection tank 1, the temperature of the filtrate is kept above the precipitation temperature, the material is prevented from being easily cleaned after being precipitated, the filter press 4 is prevented from being blocked after being precipitated in the filter press 4, the filtrate is conveyed to the crystallization kettle 2 for crystallization after being clarified without carbon for many times, no pollution is caused, continuous production can be realized, and the production period is shortened, meanwhile, the operation process is simplified, and the labor intensity is reduced.

The collecting tank 1 also comprises a chemical pump 5 arranged on the second pipeline 13; the chemical pump 5 can provide power to send the filtrate in the collection tank 1 to the second pipeline 13 and circulate the filtrate.

When the pressure filter 4 carbon leakage treatment device works, firstly filtrate flows through the decolorizing kettle 3 and the pressure filter 4 in sequence for treatment, the working procedure is the prior art, detailed description is omitted, the filtrate treated by the pressure filter 4 enters the collecting tank 1 through the first pipeline 11, at the moment, the first valve 12 is opened, the second valve 22 is closed, the filtrate contains carbon, treatment needs to be carried out again to remove the carbon leakage, the filtrate in the collecting tank 1 is subjected to carbon leakage treatment in the pressure filter 4 again through the second pipeline 13 under the action of the chemical pump 5, when the reciprocating treatment is carried out for 5-10 minutes, the filtrate is clarified without carbon leakage, the first valve 12 is closed, the second valve 22 is opened, the filtrate enters the crystallization kettle 2 from the first pipeline 11 to complete crystallization, and the treatment time can be properly reduced when the carbon leakage is small, and when the carbon leakage amount is large, the treatment time can be properly increased, the selection is carried out according to the actual situation.

Wherein, the second pipeline 13 can be directly connected to the top end of the pressure filter 4, and the filtrate directly enters the pressure filter 4 in the second pipeline 13, which is convenient and fast.

Preferably, the decoloring kettle 3 is communicated with the filter press 4 through a fourth pipeline 31, and the second pipeline 13 is communicated to the fourth pipeline 31; the filtrate in the collection tank 1 flows to the fourth pipeline 31 when flowing back through the second pipeline 13, the decoloring kettle 3 and the pressure filter 4 are also communicated through the fourth pipeline 31, the filtrate can be processed along the same processing line after flowing back, the operation flow is simplified, the structure of the pressure filter 4 does not need to be additionally changed, and the stability of the structure of the pressure filter 4 is ensured.

Referring to fig. 2, the fourth pipeline 31 includes a fourth lower pipeline 312 communicating the decoloring kettle 3 and the filter press 4, and a fourth upper pipeline 311 communicating the decoloring kettle 3 and the fourth lower pipeline 312, the second pipeline 13 is communicated to the fourth upper pipeline 311, and the fourth upper pipeline 311 is provided with a third valve 313 and a fourth valve 314 on two sides of the second pipeline 13; the filtrate in the collection tank 1 can flow back to the decoloring kettle 3 or the filter press 4 according to actual conditions, and different treatments are carried out, so that the filtrate is carbon-free and clear, and the subsequent crystallization is convenient.

The third valve 313 is located at the lower side, the fourth valve 314 is located at the upper side, when the third valve 313 is closed and the fourth valve 314 is opened, the filtrate cannot flow to the fourth lower pipe 312 when the second pipe 13 flows, so the filtrate flows back to the decolorization tank 3 for the second treatment through the fourth upper pipe 311, and when the third valve 313 is opened and the fourth valve 314 is closed, the filtrate flows down to the fourth lower pipe 312 when the second pipe 13 flows, so the filtrate flows back to the pressure filter 4 for the second treatment through the fourth lower pipe 312, which can be selected differently according to actual conditions.

The heating element is a jacket arranged on the inner wall of the collecting tank 1; the jacket can realize heat preservation, ensure that the temperature of the filtrate in the collecting pipe is higher than the precipitation temperature, preferably, in order to further improve the temperature of the filtrate in the collecting tank 1, a heating medium is arranged in the jacket, and the filtrate is heated to avoid the temperature of the filtrate from being reduced to be lower than the precipitation temperature.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (6)

1. The utility model provides a pressure filter leaks carbon processing apparatus, is including the decoloration cauldron and the pressure filter that communicate in proper order, has the precipitation temperature who precipitates out the solid material by the carminative filtrate of pressure filter exhaust, its characterized in that still includes:

a collection tank having a first pipe and a second pipe communicating with the pressure filter, the filtrate entering the collection tank from the pressure filter through the first pipe being able to flow back to the pressure filter through the second pipe, the collection tank being provided with a heating element so that the temperature of the filtrate is greater than the precipitation temperature, the first pipe being provided with a first valve;

the crystallization kettle is communicated with the first pipeline through a third pipeline, the third pipeline is arranged between the pressure filter and the first valve, and the third pipeline is provided with a second valve;

wherein the first valve is opened and the second valve is closed to circulate the filtrate along the pressure filter and the collection tank, and the first valve is closed and the second valve is opened to allow the filtrate to enter the crystallization kettle to realize crystallization.

2. The pressure filter carbon leak treatment device according to claim 1, wherein the decoloring tank is communicated with the pressure filter through a fourth pipe, and the second pipe is communicated to the fourth pipe.

3. The pressure filter carbon leak treatment device according to claim 2, wherein the fourth pipeline comprises a fourth lower pipeline communicating the decolorization kettle and the pressure filter, and a fourth upper pipeline communicating the decolorization kettle and the fourth lower pipeline, the second pipeline is communicated to the fourth upper pipeline, and the fourth upper pipeline is provided with a third valve and a fourth valve respectively on two sides of the second pipeline.

4. The pressure filter carbon leak treatment device according to claim 1, wherein the collection tank further comprises a chemical pump disposed in the second pipe.

5. The filter-press carbon leak treatment device according to claim 1, wherein the heating member is a jacket provided on an inner wall of the collection tank.

6. The pressure filter carbon leak treatment device according to claim 5, wherein a heating medium is provided in the jacket.

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