CN219240144U

CN219240144U - Wet strength agent anti-deposition pump station

Info

Publication number: CN219240144U
Application number: CN202223137305.6U
Authority: CN
Inventors: 胡新仿
Original assignee: Hubei Jiayun Chemical Technology Co ltd
Current assignee: Hubei Jiayun Chemical Technology Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-06-23
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a wet strength agent anti-deposition pump station, which relates to the field of wet strength agent adding systems and comprises an auxiliary agent mixing system, wherein a liquid outlet end of the auxiliary agent mixing system is connected with an input end of a main filtering system, and an output end of the main filtering system is connected with a converging pipeline for output; the main filtering system comprises a plurality of branch filtering systems which are distributed in parallel; the branch filter system comprises a branch pipeline, a first valve, a filter and a second valve, wherein the first valve, the filter and the second valve are sequentially arranged on the branch pipeline along the medium flowing direction. The main filtering system is arranged, so that the filter can be cleaned conveniently, sediment can be prevented or reduced from entering the system effectively, and the addition of the wet strength agent is performed stably.

Description

Wet strength agent anti-deposition pump station

Technical Field

The utility model relates to the technical field of wet strength agent adding systems, in particular to a wet strength agent deposition-preventing pump station.

Background

Wet strength agents are the most common chemical additives for paper, and in the paper industry, the addition of wet strength agents can enable the paper to maintain 20-50% of the original dry strength even after long-term soaking in water or water solvents after drying. The wet strength agent is viscous liquid with high viscosity, and the current method for adding the wet strength agent is to dilute the wet strength agent and then add the diluted wet strength agent into pulp slurry by pumping. A problem with this process is that the wet strength agent can develop deposits in the transport pipe after prolonged use, which deposits can affect the quality of the paper production.

Thus, chinese patent No. CN 208104896U provides a wet strength agent adding system for reducing deposit of wet strength agent, comprising a filter arranged on a conveying pipeline, the filter has a built-in filter screen with a filter diameter of 50-80 mesh, the improved design increases the filter, which can effectively prevent or reduce deposit from entering the system, improve paper quality, the inlet and outlet of the filter are connected via a bypass pipeline, the bypass pipeline is provided with a bypass valve, when the filter screen needs to be cleaned or replaced, in order to make the addition of wet strength agent more stable, the bypass valve is opened, the inlet and outlet of the filter are closed to clean or replace the filter screen, however, the bypass pipeline lacks filtering measures when in temporary use, so that deposit cannot be prevented from entering the system through the bypass pipeline, and therefore, we provide a wet strength agent anti-deposit pump station.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a wet strength agent anti-deposition pump station which is convenient for cleaning a filter and simultaneously effectively prevents sediment from entering the system.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the wet strength agent deposition-preventing pump station comprises an auxiliary agent mixing system, wherein the liquid outlet end of the auxiliary agent mixing system is connected with the input end of a main filtering system, and the output end of the main filtering system is connected with the output of a converging pipeline;

the main filtering system comprises a plurality of branch filtering systems which are distributed in parallel;

the branch filter system comprises a branch pipeline, a first valve, a filter and a second valve, wherein the first valve, the filter and the second valve are sequentially arranged on the branch pipeline along the adding direction of the diluent additive.

Preferably, the bypass filter systems are connected with the clean bypass pipeline and the sewage bypass pipeline.

Preferably, the clean bypass line and the blowdown bypass line are connected to the output end and the input end of the filter, respectively.

Preferably, the clean bypass pipeline and the sewage bypass pipeline are both provided with control valves.

Preferably, the clean bypass line and the blowdown bypass line are respectively connected with a water pipe and a blowdown pipe.

The utility model has the following beneficial effects:

(1) After improvement, the utility model sets up the main filtration system, have a plurality of parallel filtration channels, filter by the filtration system of multiple groups branch road jointly and evenly, filter screen in the filter of one group branch road filtration system is washed or changed, close its corresponding valve one and valve two, other every group branch road filtration system normal operating, can prevent or reduce deposit entering the system effectively, the addition of wet strength agent is steadily carried on.

(2) The clean bypass pipeline and the blowdown bypass pipeline are connected at the filter both ends, and deposit in the filter can be cleaned to need not to dismantle the filter, and during the cleanness, valve one and valve two corresponding branch road filtration system are closed, circulate clean water source through clean bypass pipeline, can pass through blowdown bypass pipeline with filter screen filterable deposit in the filter and discharge, and the cleanness is more convenient.

Drawings

FIG. 1 is a schematic diagram of a system of the present utility model;

FIG. 2 is a schematic diagram of a primary filtration system of the present utility model;

FIG. 3 is a schematic view of the flow direction of the filter cleaning deposits according to the present utility model.

In the figure: 1. an auxiliary agent mixing system; 2. a main filtration system; 21. a bypass filtration system; 211. a branch pipe; 212. a valve I; 213. a filter; 214. a second valve; 3. a confluence pipeline; 4. cleaning the bypass pipeline; 5. a blowdown bypass line; 6. addition of a wet strength agent.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The structure of the wet strength agent deposition-preventing pump station provided by the embodiment is shown in fig. 1-3, the wet strength agent deposition-preventing pump station comprises an auxiliary agent mixing system 1, the wet strength agent is viscous liquid, the auxiliary agent mixing system 1 is used for mixing and diluting the wet strength agent and the diluent and then adding the wet strength agent into pulp slurry, (the arrow of fig. 1 points to the output direction of the diluted wet strength agent), the liquid outlet end of the auxiliary agent mixing system 1 is connected with the input end of a main filtering system 2, the main filtering system 2 comprises a plurality of branch filtering systems 21 distributed in parallel, the plurality of groups of branch filtering systems 21 are cooperated and uniformly filtered together, the output end of the main filtering system 2 is connected with a converging pipeline 3, and the filtered medium is output to a wet strength agent adding point 6 through the converging pipeline 3;

the branch filter system 21 comprises a branch pipeline 211, a first valve 212, a filter 213 and a second valve 214, wherein the first valve 212 and the second valve 214 are flow control valves, the first valve 212, the filter 213 and the second valve 214 are sequentially arranged on the branch pipeline 211 along the adding direction of the diluent auxiliary agent, the filter screen in the filter 213 of one group of branch filter systems 21 is cleaned or replaced, the corresponding first valve 212 and the corresponding second valve 214 are closed, the filter 213 is cleaned, the other groups of branch filter systems 21 work normally, sediment can be effectively prevented or reduced from entering the system, and the addition of the wet strength agent is continuously and stably carried out;

the bypass filtration system 21 is connected with the clean bypass pipeline 4 and the blowdown bypass pipeline 5, the clean bypass pipeline 4 and the blowdown bypass pipeline 5 are respectively connected with the output end and the input end of the filter 213, the clean bypass pipeline 4 and the blowdown bypass pipeline 5 are respectively provided with control valves, the clean bypass pipeline 4 and the blowdown bypass pipeline 5 are respectively connected with a water pipe and a blowdown pipe, when the filter 213 is simply cleaned, the first valve 212 and the second valve 214 of the corresponding bypass filtration system 21 are closed without disassembling the filter 213, the control valves of the clean bypass pipeline 4 and the blowdown bypass pipeline 5 are opened, clean water sources circulate through the clean bypass pipeline 4, and filtered sediments in the filter 213 can be discharged to the blowdown pipe through the blowdown bypass pipeline 5, so that the cleaning is more convenient (the arrow of fig. 3 points to the output direction of the clean sediments).

In summary, the present utility model solves the problem of sediment entering the system when cleaning the filter by providing a main filtration system 2.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wet strength agent prevents deposit pump station, includes auxiliary agent mixing system (1), its characterized in that: the liquid outlet end of the auxiliary agent mixing system (1) is connected with the input end of the main filtering system (2), and the output end of the main filtering system (2) is connected with the output of the converging pipeline (3);

the main filtering system (2) comprises a plurality of branch filtering systems (21), and the plurality of branch filtering systems (21) are distributed in parallel;

the branch filter system (21) comprises a branch pipeline (211), a first valve (212), a filter (213) and a second valve (214), wherein the first valve (212), the filter (213) and the second valve (214) are sequentially arranged on the branch pipeline (211) along the flow direction of the diluent additive.

2. A wet strength agent deposition preventing pump station according to claim 1, wherein: the bypass filter systems (21) are connected with the clean bypass pipeline (4) and the sewage discharge bypass pipeline (5).

3. A wet strength agent deposition preventing pump station according to claim 2, wherein: the clean bypass pipeline (4) and the sewage drain bypass pipeline (5) are respectively connected with the output end and the input end of the filter (213).

4. A wet strength agent deposition preventing pump station according to claim 3, wherein: control valves are arranged on the clean bypass pipeline (4) and the sewage discharge bypass pipeline (5).

5. A wet strength agent deposition preventing pump station according to claim 2, wherein: the clean bypass pipeline (4) and the sewage drain bypass pipeline (5) are respectively connected with a water pipe and a sewage drain pipe.