CN109603289B

CN109603289B - Method for filtering flow-cutting attachments

Info

Publication number: CN109603289B
Application number: CN201910131645.1A
Authority: CN
Inventors: 高云芝; 刘叶青; 高凌风
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2021-12-14
Anticipated expiration: 2039-02-22
Also published as: CN109603289A

Abstract

The invention provides a method for filtering attachment, which comprises the steps of impacting a filtering surface of a filtering plate through the flow velocity of liquid inlet, separating the attachment filtered and intercepted on the filtering surface through impact, circulating mixed liquid with the attachment through a circulating interception system, and circularly intercepting the attachment into an interception machine, so that the separation of the filtering surface and the attachment is realized. The invention is scientific and reasonable, simple, practical and efficient, and realizes quick cleaning and continuous filtration.

Description

Method for filtering flow-cutting attachments

Technical Field

The invention relates to a method for filtering attachment of a flow cutter.

Background

At present, in the liquid filtration of industries such as medicine, chemical industry, light industry, beverage and the like, a plurality of filtration modes and cleaning processes are available in the market, a large amount of mineral resources such as diatomite and the like are used, and the resources are not renewable; the cross-flow filtration process requires improvement in the technique of achieving cleaning during filtration.

Disclosure of Invention

In order to solve the problems, the invention aims to provide a method for filtering the flow-cut attachments, which is simple and easy to operate, is scientific, reasonable, simple, practical and efficient, and realizes quick cleaning and continuous filtering.

The method for filtering the attachment cut by the flow comprises the steps of impacting the filtering surface of the filter plate through the flow velocity of liquid inlet, separating the attachment filtered and intercepted on the filtering surface by impact, circularly carrying mixed liquid of the attachment by a circulating interception system, and circularly intercepting the attachment into an interceptor, so that the separation of the filtering surface and the attachment is realized.

The method for filtering the attachment cut by the flow comprises a filtering system and a circulating interception system, when the attachment filtered and intercepted by a filtering machine in the filtering system is increased and needs to be cleaned, the attachment flow is cut into an interception machine through liquid and the circulating interception system, the cleaning function is quickly realized, the method can be implemented during filtering, and the method can also be implemented after the filtering system is stopped.

The following steps are carried out during the filtration: the filtering pressure is set to be a low pressure value and a high pressure value, when the pressure rises to reach the high pressure value, the circulating interception system is started, and the attachments on the filter plate are cut through circulating flow and are brought into and intercepted in an interceptor in the circulating interception system; when the pressure value of the continuous filtration is reduced to reach the low pressure value, the circulating interception system is closed; the low pressure value and the high pressure value are set according to actual requirements.

The principle of flow cutting: carry out through the feed liquor velocity of flow and strike the filter plate, the impact has broken away from the attachment of filtering the interception on the filter plate, the rethread circulation interception system circulation has the mixed liquid of attachment, it intercepts to attach circulation in the interceptor, realized fast the attachment of filter plate breaks away from, can realize continuous filterable purpose simultaneously, has realized the principle that the flow is cut.

Drawings

Fig. 1 is a schematic diagram of a flow-cut filtering apparatus according to the present invention, and the diagrams are respectively: valve a1, strainer a2, valve A3, filter pump a4, valve a5, filter a6, valve a7, liquid feed pump A8, valve a9, valve B1, circulation pump B2, valve B3, filter interceptor B4, valve B5, valve B6, valve B7, valve B8, valve B9;

fig. 2 is a schematic flow-cutting diagram of a filtering apparatus according to the present invention, which is shown in the following drawings: valve A1, filter-protecting filter C1, liquid inlet pump H1, valve A2, primary exchanger W1, refrigeration system Q1, valve A3, filter pump H2, valve A4, filter C2, valve A5, valve A6, turbidity meter W3, circulation valve A8, liquid feeding pump H3, valve A7, valve B1, valve B3, valve B5, circulation pump H4, filter interceptor C3, valve B6, valve B7, valve B2, valve B4, cooling tower system Q2, valve Q3, valve Q5, cooling pump H5, valve Q4;

fig. 3 is a schematic flow-cut diagram of a filtering apparatus according to the present invention, which is shown in the following drawings: valve a1, strainer C1, liquid inlet pump H1, valve a2, primary exchanger W1, secondary compensation exchanger W2, refrigeration system Q1, valve A3, filter pump H2, valve a4, filter C2, valve a5, valve A6, turbidity meter W3, circulation valve A8, liquid feeding pump H3, valve a7, valve B1, valve B3, valve B5, circulation pump H4, filter interceptor C3, valve B6, valve B7, valve B2, valve B4, cooling tower system Q2, valve Q3, valve Q5, cooling pump H5, valve Q4, valve Q6, refrigerant pump H6, valve Q8, refrigerant tank Q7.

Detailed Description

The present invention will now be described in further detail with reference to the attached drawings and the above summary of the invention. The invention aims to provide a method for filtering flow-cutting attachments, and the method is scientific and reasonable in process, simple, practical, efficient, clean and environment-friendly.

Embodiment 1 referring to fig. 1, a flow-cut filtering apparatus of a method of filtering a flow-cut attached matter includes a filtering system and a circulation intercepting system; wherein the filtering system comprises a valve A1, a filter protection A2, a valve A3, a filter pump A4, a valve A5, a filter A6, a valve A7, a liquid sending pump A8 and a valve A9 which are connected through pipelines; the circulation intercepting system comprises a valve B1, a circulation pump B2, a valve B3, a filtering interceptor B4 and a valve B5 which are connected through pipelines.

Specifically, the filtering system is started to filter, when the pressure of the filter A6 rises to clean, the circulation intercepting system is started, the attachments on the filter plate are cut by the circulation of the circulation intercepting system and are brought into and intercepted in the filtering type interceptor B4, and the circulation intercepting system is closed after the pressure is reduced, so that the process of continuously filtering and cutting the attachments is realized. The filtration system can also be stopped from flow cutting the attachment.

Embodiment 2 referring to fig. 2, a filtering apparatus of the method of filtering the flow-cut attached matter includes: the system comprises a refrigeration system Q1, a liquid inlet system, a cooling circulation system, a cooling system, a filtering system and a circulation interception system; the refrigeration system Q1 comprises an explosion-proof compressor, a condenser, an evaporator, a gas-liquid separator, an expansion valve, a drying filter and the like, and is connected through a pipeline to form a refrigeration loop; the liquid inlet system comprises a valve A1, a filter protector C1, a liquid inlet pump H1, a valve A2, a primary exchanger W1, the evaporator, a valve A3, a filter pump H2, a valve A4, a filter C2, a valve B1, a circulating pump H4, a valve B2 and an interceptor C3 which are connected through pipelines to form a liquid inlet loop; the cooling circulation system comprises a cooling tower system Q2, a valve Q3, a cooling pump H5, the condenser and a valve Q4 which are connected through pipelines to form a cooling circulation loop; the cooling system comprises the liquid inlet pump H1, the valve A2, the primary exchanger W1, the evaporator, the valve A3, the filter pump H2, the valve A4, the filter C2, a valve A5, the primary exchanger W1, a valve A6, a turbidity meter W3 and a valve A8 which are connected through pipelines to form a cooling loop; the filtering system comprises the valve A1, the strainer C1, the liquid inlet pump H1, the valve A2, the primary exchanger W1, the evaporator, the valve A3, the filter pump H2, the valve A4, the filter C2, the valve A5, the primary exchanger W1, the valve A6, the turbidity meter W3, a liquid feeding pump H3 and a valve A7 which are connected through pipelines to form a filtering loop; the circulation intercepting system comprises the filter C2, the valve B1, the circulating pump H4, the valve B2, the interceptor C3 and the valve B3 which are connected through pipelines to form a circulation intercepting loop.

The method comprises the following specific operations: after the preparation process is ready, the liquid inlet system is started to fully load and filter stock solution and is closed, then the cooling circulation system, the temperature reduction system, the refrigeration system Q1 and the circulation interception system are started, when the temperature reduction system and the circulation interception system meet the requirements, the circulation interception system is closed, then the valve A1, the liquid inlet pump H3 and the valve A7 are started, and meanwhile the valve 8 is closed to enter a filtration mode; during the filtration mode, when filter C2 pressure reaches the washing, start the interception system carries out the flow and cuts the attachment of interception malleation in the filter C2, through the interception system will the attachment filters the interception and arrives in the filtration formula interceptor, filter pressure C2 satisfies and closes after the filtration requirement the interception system has realized online washing, has ensured continuous filtration.

Embodiment 3 referring to fig. 3, a filtering apparatus of the method of filtering the flow-cut adhesion substance includes: the system comprises a refrigeration system Q1, a liquid inlet system, a cooling circulating system, a refrigerant circulating system, a cooling system, a filtering system and a circulating interception system; the refrigeration system Q1 comprises an explosion-proof compressor, a condenser, an evaporator, a gas-liquid separator, an expansion valve, a drying filter and the like, and is connected through a pipeline to form a refrigeration loop; the liquid inlet system comprises a valve A1, a filter protection C1, a liquid inlet pump H1, a valve A2, a primary exchanger W1, a secondary compensation exchanger W2, a valve A3, a filter pump H2, a valve A4, a filter C2, a valve B1, a circulating pump H4, a valve B2 and a filter interceptor C3 which are connected through pipelines to form a liquid inlet loop; the cooling circulation system comprises a cooling tower system Q2, a valve Q3, a cooling pump H5, the condenser and a valve Q4 which are connected through pipelines to form a cooling circulation loop; the refrigerant circulating system comprises a refrigerant tank Q7, a valve Q6, the evaporator, the secondary compensation exchanger W2, a refrigerant pump H6 and a valve Q8 which are connected through pipelines to form a refrigerant circulating loop; the cooling system comprises the liquid inlet pump H1, the valve A2, the primary exchanger W1, the secondary compensation exchanger W2, the valve A3, the filter pump H2, the valve A4, the filter C2, the valve A5, the primary exchanger W1, the valve A6, a turbidity meter W3 and the valve A8 which are connected through pipelines to form a cooling loop; the filtering system comprises the valve A1, the strainer C1, the liquid inlet pump H1, the valve A2, the primary exchanger W1, the secondary compensation exchanger W2, the valve A3, the filtering pump H2, the valve A4, the filtering machine C2, the valve A5, the primary exchanger W1, the valve A6, the turbidity meter W3, a liquid feeding pump H3 and a valve A7 which are connected through pipelines to form a filtering loop; the circulation intercepting system comprises the filter C2, the valve B1, the circulation pump H4, the valve B2, the filtering interceptor C3 and the valve B3 which are connected through pipelines to form a circulation intercepting loop.

The method comprises the following specific operations: after the preparation process is ready, starting the cooling circulation system, the refrigerant circulation system and the refrigeration system Q1, starting the liquid inlet system to fully load and filter stock solution, closing the liquid inlet system, then starting the cooling system and the circulation interception system, closing the circulation interception system and the cooling system when the cooling system and the circulation interception system meet the requirements, and then starting the filtration system. The filtration system mode is in progress, when filter C2 pressure reaches and washs, starts the interception system carries out the flow and cuts the attachment of interception malleation in the filter C2, through circulation interception system will the attachment filters the interception and arrives in the filtration formula interceptor, filter pressure C2 satisfies and closes after the filtration requirement the interception system has realized online washing, has ensured continuous filtration.

The invention has the advantages of improving the working efficiency and reducing the production cost, and the process is scientific and reasonable, simple, practical, efficient, clean and environment-friendly.

Claims

1. A method for filtering flow-cut attachments,

the flow-cutting attachment filtering equipment comprises a filtering system and a circulating interception system;

when the number of attachments filtered by a filter in the filtering system is increased and the attachments need to be cleaned, the filtering surface of the filtering plate is impacted by the flow velocity of the inlet liquid, and the impact is separated from the attachments filtered and intercepted on the filtering surface;

then the mixed liquid with the attachments is circulated through a circulating interception system, and the attachments are intercepted into an interceptor in a circulating way, so that the separation of the filter surface and the attachments is realized;

during filtering, the filtering pressure is set to be a low pressure value and a high pressure value, when the pressure rises to reach the high pressure value, the circulation interception system is started, the attachments on the filter plate are cut through circulation flow and are brought into an interception machine intercepted in the circulation interception system, when the continuous filtering pressure value is reduced to reach the low pressure value, the circulation interception system is closed, and the low pressure value and the high pressure value are set according to actual requirements.