CN110117519B - Continuous filtering device and continuous filtering equipment - Google Patents

Abstract

The present invention relates to a continuous filter device and a continuous filter apparatus, the continuous filter device includes: an adding tank for containing a filter medium for filtering the wine; at least two groups of filter tanks, wherein the filter tanks are communicated with the adding tank, a first valve is arranged between at least one group of filter tanks in the at least two groups of filter tanks and the filter tank in the adjacent group, and a filter element is arranged in the filter tank and used for filtering wine; the first pipeline is communicated with one end of the adding tank and one end of the filtering tank, and a second valve is arranged between the first pipeline and the filtering tank; the second pipeline is communicated with the other end of the filter tank, and a third valve is arranged between the second pipeline and the filter tank; the cleaning tank is communicated with the filtering tank, and a pipeline connected with the filtering tank forms a loop and is used for providing cleaning liquid into the filtering tank. The continuous filtering device provided by the invention can continuously filter, and provides production efficiency.

Description

Continuous filtering device and continuous filtering equipment

Technical Field

The invention relates to the technical field of wine production, and in particular to a continuous filtering device and continuous filtering equipment.

Background technique

At present, newly built large and medium-sized breweries tend to use regenerative PVPP stabilizers and related stabilization equipment to stabilize beer. Regenerative PVPP stabilization equipment contains a pre-coating filter. Although the purpose is not to clarify and filter beer, PVPP stabilization equipment is often called PVPP filter. PVPP stabilization equipment that uses candle filters in the filtration part is called candle PVPP filter.

The candle-type PVPP filter has the following main problems:

(1) Since PVPP is attached to the vertical cylindrical surface, the filter layer thickness of PVPP will continue to increase, the carrying capacity will continue to rise, and it will be greatly affected by pressure fluctuations. Once there is a large pressure fluctuation, the filter candle will be affected.

(2) The filtration process should not be stopped. Power failure or abnormal shutdown can easily cause the PVPP filter layer to fall off, which will affect the filtration effect after recovery.

(3) The candle-shaped column of the filter has high clearance height requirements and high space requirements.

(4) It is impossible to use sterile gas to press out the head and tail of the wine, and it can only be replaced with deoxygenated water, which will produce a large amount of wine-water mixture, which will be discharged during the regeneration process, causing excessive wine loss.

(5) Only one filter tank (with only one inlet and outlet at both ends) and one CIP system are used. When the PVPP needs to be regenerated, the filtration of the beer can only be suspended to regenerate the PVPP. After the regeneration is completed, the beer can be filtered again, resulting in low filtration efficiency.

Summary of the invention

In order to solve the above problems, an object of the present invention is to provide a continuous filtering device with high filtering efficiency.

The present invention provides a continuous filtering device, comprising: an adding tank, which is used to hold a filtering medium for filtering wine; at least two groups of filtering tanks, which are connected to the adding tank, a first valve is provided between at least one group of the at least two groups of filtering tanks and the filtering tank of an adjacent group, and a filtering element is provided in the filtering tank for filtering the wine; a first pipe, which is connected to one end of the adding tank and one end of the filtering tank, and a second valve is provided between the first pipe and the filtering tank; a second pipe, which is connected to the other end of the filtering tank, and a third valve is provided between the second pipe and the filtering tank; a cleaning tank, which is connected to the filtering tank, and the pipes connecting the cleaning tank and the filtering tank form a loop for providing cleaning liquid into the filtering tank.

Optionally, it also includes: a third pipeline, one end of the third pipeline is respectively connected to one end of the cleaning tank and one end of the filter tank, for providing cleaning liquid to the filter tank, the second valve is a first double valve seat, and the third pipeline is connected to the first pipeline through the double valve seat; a fourth pipeline, one end of the fourth pipeline is respectively connected to the other end of the cleaning tank and the other end of the filter tank, for recovering the cleaning liquid after cleaning, the third valve is a second double valve seat, and the fourth pipeline is connected to the second pipeline through the second double valve seat.

Optionally, it also includes: a gas supply pipeline, the gas supply pipeline is connected to the fourth pipeline, a fourth valve is provided between the gas supply pipeline and the fourth pipeline, and is used to transport gas to the filter tank; a fifth valve is provided between the cleaning tank and the fourth pipeline.

Optionally, it further includes: a recovery pipeline, one end of which is connected to the filter tank, and the other end of which is connected to the addition tank, for recovering the filter medium, and a sixth valve is provided on the recovery pipeline.

Optionally, the filter element is a ceramic membrane.

Optionally, the filter medium is crospovidone.

Optionally, it also includes: an addition pump, which is arranged between the addition tank and the first pipeline; and a wine supply pump, which is installed on the first pipeline to provide power for the wine to enter the filtering tank.

Optionally, it also includes: a cleaning pump, which is arranged on the fourth pipeline.

Optionally, it also includes: a seventh valve, which is arranged between the filter tank and the first pipeline.

The present invention also provides a continuous filtering device, comprising any one of the above-mentioned continuous filtering devices; an unfiltered wine tank, which is connected to a first pipeline; and a filtered wine tank, which is connected to a second pipeline.

As described above, the continuous filtering device provided by the present invention comprises at least two groups of filtering tanks, so when at least one group of filtering tanks is in the filtering state, at least one other group of filtering tanks can be cleaned at the same time to regenerate the filtering medium in the group of tanks and restore the filtering capacity for standby use. By alternating in this way, the wine can be continuously filtered with high filtering efficiency, unlike the prior art, which can only perform filtering or cleaning and regeneration at the same time, and has low filtering efficiency.

In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The specific implementation modes of the present invention will be further described in detail below with reference to the accompanying drawings.

FIG. 1 is a continuous filtering device according to an embodiment of the present invention.

Detailed ways

The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

As shown in Figure 1, the continuous filtering device according to the embodiment of the first aspect of the present invention includes an addition tank 10, at least two groups of filter tanks, a first pipeline 30, a second pipeline 40 and a cleaning tank 50. It should be noted that a group of filter tanks can include only one filter tank 20, or it can include more than two filter tanks 20. The number of filter tanks 20 between each group can be the same or different. Those skilled in the art can determine the number of groups and the number of filter tanks 20 in each group according to the specific actual situation, and no specific limitation is made here. In the present embodiment, the continuous filtering device includes two groups of filter tanks, and each group of filter tanks includes two filter tanks 20.

Among them, the addition tank 10 is used to hold the filter medium for filtering the wine, the filter tank 20 is connected to the addition tank 10, and a first valve 21 is provided between at least one of the at least two groups of filter tanks and the filter tank of the adjacent group. A filter element 22 is provided in the filter tank 20 for filtering the wine. The first pipe 30 is connected to one end of the addition tank 10 and one end of the filter tank 20, and a second valve 31 is provided between the first pipe 30 and the filter tank 20. The second pipe 40 is connected to the other end of the filter tank 20, and a third valve 41 is provided between the second pipe 40 and the filter tank 20. The cleaning tank 50 is connected to the filter tank 20, and the pipe connecting the cleaning tank 50 and the filter tank 20 forms a loop for providing cleaning liquid into the filter tank 20.

That is, the continuous filtering device is provided with at least two groups of filter tanks, an addition tank 10 and a cleaning tank 50. Among them, the addition tank 10 is connected with the filter tank 20 through the first pipe 30, and the first pipe 30 can transport the filter medium and the wine in the addition tank 10 to the filter tank 20, and at least one of the at least two filter tanks 20 is provided with a first valve 21 between the other filter tanks 20, and the first valve 21 can independently control at least one of the filter tanks 20 and the other filter tanks 20. That is, at least one filter tank 20 can filter the wine asynchronously with other filter tanks 20. When at least one filter tank 20 is in the filtering state, the other filter tanks 20 do not perform filtering action, and serve as a standby to perform filtering action at the next time; when at least one filter tank 20 is in the cleaning and regeneration state, the other filter tanks 20 are in the filtering state to filter the wine. In this way, uninterrupted filtering of the wine is achieved, and the second pipe 40 is connected with the filter tank 20 to transport the filtered wine to the filtered wine tank (not shown in the figure) for storage.

The continuous filtering device provided by the present invention comprises at least two groups of filtering tanks, so when at least one group of filtering tanks is in the filtering state, at least one other group of filtering tanks can be cleaned at the same time to regenerate the filtering medium in the group of tanks and restore the filtering capacity for standby use. By alternating in this way, the wine can be continuously filtered, the filtering efficiency is high, and the production efficiency is improved, unlike the prior art, which can only perform filtering or cleaning and regeneration at the same time, and the filtering efficiency is low.

According to one embodiment of the present invention, the continuous filtering device further includes a third pipeline 60 and a fourth pipeline 70 .

Referring to FIG1 , one end of the third pipe 60 is respectively connected to one end of the cleaning tank 50 and one end of the filter tank 20, and is used to provide cleaning liquid into the filter tank 20. The second valve 31 is a first double valve seat, and the third pipe 60 is connected to the first pipe 30 through the first double valve seat; one end of the fourth pipe 70 is respectively connected to the other end of the cleaning tank 50 and the other end of the filter tank 20, and is used to recover the cleaning liquid after cleaning. The third valve 41 is a second double valve seat, and the fourth pipe 70 is connected to the second pipe 40 through the second double valve seat.

That is, the cleaning tank 50 and the filtering tank 20 are connected through the third pipe 60 and the fourth pipe 70 to form an independent loop, and the filtering tank 20 can be opened when filtering wine or cleaning through the double valve seat connection, so that the liquid can flow into the filtering tank, and the double valve seat can open different pipes according to the filtering and cleaning processes, so that different processes correspond to different pipes. This control method is simple and easy to operate.

According to another embodiment of the present invention, the continuous filtering device also includes a gas supply pipeline 80, which is connected to the fourth pipeline 70. A fourth valve 81 is provided between the gas supply pipeline 80 and the fourth pipeline 70 for conveying gas to the filter tank 20. A fifth valve 71 is provided between the cleaning tank 50 and the fourth pipeline 70.

That is, when at least one gas supply pipe 80 is set, when the wine filtration is completed, before the filter tank 20 is cleaned, since there is still wine in the filter tank 20, gas is input into the gas supply pipe 80 at this time, so that the residual wine in the filter tank 20 is pressed back into the first pipe 30 under the action of pressure, and flows into the third and fourth filter tanks 20 with the wine in the first pipe for re-filtration, thereby avoiding the waste of wine, being able to effectively eliminate the head and tail of wine, and reducing costs.

Preferably, the gas can be carbon dioxide gas. In other embodiments, the gas can also be other sterile inert gases, which are not specifically limited herein.

In some embodiments of the present invention, the continuous filtering device further comprises a recovery pipe 90 , one end of which is connected to the filter tank 20 , and the other end of which is connected to the addition tank 10 , for recovering the filter medium. A sixth valve 91 is disposed on the recovery pipe 90 .

That is to say, after the filter medium is cleaned, pressure can be applied to the filter tube, that is, gas can be introduced again to recover the cleaned filter medium to the addition tank 10 through the recovery pipe 90, so as to prepare for the next wine filtration.

Optionally, the filter element 22 is a ceramic membrane. Since the ceramic membrane can be repeatedly washed and has a service life of up to 10 years, it is not easy to deform or damage. On the other hand, compared with the filter candle stick of the candle-type PVPP filter, the ceramic membrane has a smaller pore size, and the filter medium can be more firmly adsorbed on the surface of the ceramic membrane, not easy to fall off, and the clearance requirement of the ceramic membrane is relatively low.

Optionally, the filter medium is cross-linked polyvinylpyrrolidone, referred to as PVPP, which is a commonly used filter medium in wine and can effectively remove phenolic substances in the wine to ensure the stability of the wine.

The continuous filtering device provided by the present invention may further include an addition pump 11 , a wine supply pump 32 and a cleaning pump 51 .

The addition pump 11 is arranged between the addition tank 10 and the first pipeline 30, the wine supply pump 32 is installed on the first pipeline 30 to provide power for the wine to enter the filter tank 20, and the cleaning pump 51 is arranged on the fourth pipeline 70. That is, the pump body can provide power for conveying the wine or the cleaning liquid.

Optionally, the continuous filtering device may further include a seventh valve 23, which is disposed between the filter tank 20 and the first pipe 30. The seventh valve 23 may be opened when the residual wine that has not been completely filtered is pressed back into the first pipe 30 before the saturated PVPP in the filter tank 20 is cleaned, so as to facilitate the recovery and re-filtration of the residual wine and avoid waste of the wine. A filter medium such as a ceramic membrane may also be disposed on the side of the seventh valve 23 facing the filter tank 20, so that in the process of pressing the wine back to the first pipe 30, the PVPP in the filter tank 20 is prevented from being discharged into the first pipe 30 together with the residual wine to affect the filtration purity.

The specific working process of the continuous filtering device provided by the embodiment of the present invention is further described below. In order to be able to explain more clearly, the filter tanks 20 in Figure 1 are the first filter tank, the second filter tank, the third filter tank and the fourth filter tank from left to right. Among them, the first group includes the first filter tank and the second filter tank, and the second group includes the third filter tank and the fourth filter tank. The following takes the first group first performing the filtering work and the second group performing the filtering work as an example, but those skilled in the art can understand that the number of groups, the order of filtering work of each group, the number of filters in each group, etc. can all be determined according to the specific actual situation (such as time, cost, purity after filtration, etc.). PVPP has been attached to the filter medium 22 of each filter tank 20.

(1) In the first stage, the first group, i.e., the first filter tank and the second filter tank, are in a normal filtering state, and the second group, i.e., the third filter tank and the fourth filter tank, are in a standby state. In this stage, referring to FIG1 , the first valve 21 and the fourth valve 81 are closed, and the second valve 31 and the third valve 41 are opened. Under the action of the wine supply pump 32, the unfiltered wine enters from one side of the first pipe 30, along the first pipe 30, and then enters one end of the first filter tank and the second filter tank through the second valve 31. In the first filter tank and the second filter tank, the PVPP attached to the filter medium 22 (in this embodiment, a ceramic membrane rod) filters the wine. The filtered clear liquid flows from one end of the first filter tank and the second filter tank through the third valve 41 to the second pipe 40, and then flows out along the second pipe 40, and then can directly flow into the filtered wine tank for storage.

(2) In the second stage, the first group, i.e., the first filter tank and the second filter tank, are in a saturated filtering state, and the second group, i.e., the third filter tank and the fourth filter tank, are in a normal filtering state. In this stage, the first valve 21, the fourth valve 81, and the seventh valve 23 are opened. The carbon dioxide gas enters the fourth pipe 70 through the gas supply pipe 80 and the fourth valve 81, and then enters the filter tank 20 from the other end of the first filter tank and the second filter tank through the third valve 41, so that the residual wine in the first filter tank and the second filter tank is back-pressed into the first pipe 30 under the action of pressure, and enters the third filter tank and the fourth filter tank with the pre-filtered wine in the first pipe 30 for re-filtration, thereby avoiding the waste of wine, effectively eliminating the head and tail of wine, and reducing the cost. Since a filter medium such as a ceramic membrane is provided on the side of the seventh valve 23 facing the filter tank 20, the PVPP in the filter tank 20 is prevented from being discharged into the first pipe 30 together with the residual wine, affecting the filtration purity.

(3) In the third stage, the first group, i.e., the first filter tank and the second filter tank, are in the PVPP cleaning state, and the second group, i.e., the third filter tank and the fourth filter tank, are still in the normal filtering state. In this stage, the fourth valve 81 is closed, and the fifth valve 71 and the eighth valve 61 are opened. The cleaning liquid in the cleaning tank 50 flows out from one end of the cleaning tank 50 to the third pipe 60, and then, under the action of the cleaning pump 51, enters the filter tank 20 from one end of the first filter tank and the second filter tank through the eighth valve 61 and the second valve 31, flows out from the other end of the first filter tank and the second filter tank, and then flows back to the cleaning tank 50 from the other end of the cleaning tank 50 through the third valve 41, the fourth pipe 70, and the fifth valve 71, and the cleaning cycle is repeated until the PVPP in the first filter tank and the second filter tank is cleaned and regenerated, and the filtering capacity is restored, thereby stopping the cleaning of the first filter tank and the second filter tank. In this stage, the second group, i.e., the third filter tank and the fourth filter tank, are the same as in the second stage, and the filtering action of the pre-filtered liquor is maintained.

(4) In the fourth stage, the first group, i.e., the first filter tank and the second filter tank, are in the PVPP recovery state, and the second group, i.e., the third filter tank and the fourth filter tank, are still in the normal filtering state. In this stage, the fourth valve 81 and the sixth valve 91 are opened. Similar to the above-mentioned second stage, the carbon dioxide gas enters the fourth pipeline 70 through the gas supply pipeline 80 and the fourth valve 81, and then enters the filter tank 20 from the other end of the first filter tank and the second filter tank through the third valve 41, so that the cleaned PVPP in the first filter tank and the second filter tank flows out from one end of the first filter tank and the second filter tank under pressure, and is pressed into the recovery pipeline 90 through the sixth valve 91, completing the recovery of the PVPP in the first filter tank and the second filter tank. In this stage, the second group, i.e., the third filter tank and the fourth filter tank, are the same as in the second and third stages, and the filtering action of the pre-filtered wine is maintained.

(5) In the fifth stage, the second group, i.e., the third filter tank and the fourth filter tank, maintain a normal filtering state, and the first group, i.e., the first filter tank and the second filter tank, are in a standby state. A person skilled in the art can easily understand the specific working state of the fifth stage based on the first stage, and will not be described in detail here.

When the second group, i.e., the third filter tank and the fourth filter tank, reach the filtering saturation state, refer to the similar cleaning, recycling, etc. of the first group mentioned above.

In summary, compared with the traditional candle-type PVPP filter, the continuous filtering device of the embodiment of the present invention (1) can realize continuous and uninterrupted filtering of materials, thereby improving production efficiency. The traditional candle-type PVPP filter usually has only one filter tank. When its filtering capacity reaches saturation and needs to be cleaned and regenerated, the entire filtering process needs to be suspended and can only be continued after its filtering capacity is restored, resulting in low filtering efficiency; (2) it eliminates the head and tail of the wine, thereby reducing production costs; (3) the pressure resistance is higher than that of the traditional PVPP filter, which can reach more than 10 bar; (4) the production efficiency and the maximum utilization rate of the equipment can be improved by increasing or decreasing the number of ceramic membranes and changing the combination of each group of filter tanks (for example, the number of each group of filter tanks), and the working efficiency can be improved by 10-20%.

The continuous filtering equipment of the second embodiment of the present invention comprises the continuous filtering device of the above embodiment, an unfiltered wine tank and a filtered wine tank.

Specifically, the unfiltered wine tank is connected to the first pipe 30 , and the filtered wine tank is connected to the second pipe 40 .

The continuous filtering device according to the embodiment of the present invention includes the continuous filtering device according to the above embodiment. Since the continuous filtering device according to the above embodiment of the present invention has the above technical effects, the continuous filtering device according to the embodiment of the present invention also has the above corresponding technical effects, which will not be described in detail. Other structures and operations of the vehicle according to the embodiment of the present invention are understandable and easy to implement for those skilled in the art, and therefore will not be described in detail.

Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

In summary, the above embodiments provided by the present invention are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims (4)

1. A continuous filtration device comprising:

the adding tank is used for containing a filter medium for filtering the wine, and the filter medium is crosslinked povidone and is used for removing phenolic substances in the wine;

at least two groups of filter tanks, wherein each group of filter tanks comprises more than two filter tanks, the filter tanks are communicated with the adding tank, a first valve is arranged between at least one group of filter tanks in the at least two groups of filter tanks and the filter tanks in the adjacent groups of filter tanks, and a filter element is arranged in the filter tank and used for filtering wine;

the first pipeline is communicated with one end of the adding tank and one end of the filtering tank, and a second valve is arranged between the first pipeline and the filtering tank;

the second pipeline is communicated with the other end of the filter tank, and a third valve is arranged between the second pipeline and the filter tank;

the cleaning tank is communicated with the filtering tank, and a pipeline connected with the filtering tank forms a loop and is used for providing cleaning liquid into the filtering tank;

one end of the third pipeline is respectively communicated with one end of the cleaning tank and one end of the filtering tank and is used for providing cleaning liquid for the filtering tank, the second valve is a first double valve seat, and the third pipeline is connected with the first pipeline through the double valve seats;

one end of the fourth pipeline is respectively communicated with the other end of the cleaning tank and the other end of the filtering tank and is used for recovering the cleaned cleaning liquid, the third valve is a second double-valve seat, and the fourth pipeline is connected with the second pipeline through the second double-valve seat;

a gas supply pipeline which is communicated with the fourth pipeline, and a fourth valve is arranged between the gas supply pipeline and the fourth pipeline and is used for conveying gas into the filter tank;

a fifth valve is arranged between the cleaning tank and the fourth pipeline;

the recycling pipeline is communicated with the filtering tank at one end and the adding tank at the other end, and is used for recycling the filtering medium, and a sixth valve is arranged on the recycling pipeline;

the filter element is a ceramic membrane;

and a seventh valve, wherein the seventh valve is arranged between the filter tank and the first pipeline, and a ceramic membrane is arranged on one side of the seventh valve, which faces the filter tank.

2. The continuous filtration device of claim 1, further comprising:

an addition pump disposed between the addition tank and the first pipe;

and the wine supply pump is arranged on the first pipeline and used for providing power for wine liquid to enter the filtering tank.

3. The continuous filtration device of claim 1, further comprising:

and the cleaning pump is arranged on the fourth pipeline.

4. A continuous filtration apparatus comprising a continuous filtration device according to any one of claims 1 to 3;

an unfiltered wine tank connected to the first conduit;

and the filtered wine tank is connected with the second pipeline.