A pipeline interpass filtration and vacuum venting device

Abstract

The utility model discloses a pipeline mutual through filter and vacuum external exhaust device, including upper hollow board frame, install the front liquid guide horizontal pipe, rear liquid guide horizontal pipe and the first switch valve of the front liquid guide horizontal pipe, rear liquid guide horizontal pipe same end on upper hollow board frame front and back outer wall, the upper end of two first switch valves is installed with upper T type three -way pipe, and the one end of upper T type three -way pipe away from first switch valve is installed with pump liquid subassembly. The utility model discloses by pump liquid subassembly through upper T type three -way pipe and two first switch valve connection independent operation's front filter tube group, rear filter tube group, if one of filter tube group needs to stop cleaning, and the other filter tube group is enabled to continue working, to guarantee the stable sustained delivery of grinding aid.

Description

Technical Field

[0001] This utility model relates to the field of liquid transportation technology, specifically a pipeline inter-filtration and vacuum exhaust device. Background Technology

[0002] In a grinding mill system, the transfer pump and transfer piping assembly are responsible for efficiently and continuously delivering grinding aids to or near the mill, ensuring the smooth operation of the grinding process. The transfer pump delivers the grinding aid from the storage or pretreatment area to the designated location by providing stable pressure and flow rate. Its structural design must meet the requirements of different viscosities and flow rates; commonly used types include centrifugal pumps and screw pumps. The transfer piping assembly connects the pump to the mill and undertakes the task of conveying the medium. The piping material must have wear-resistant and corrosion-resistant properties to cope with the chemical properties of the grinding aid and the abrasion caused by high flow rates. A reasonable piping layout and fitting configuration help reduce pressure loss, regulate flow rate, and ensure the safe and stable operation of the system.

[0003] In actual conveying, the grinding aid enters the pump body from the storage container through a pipeline. After the pump starts, the pressure generated pushes the grinding aid along the pipeline to the mill inlet. During this process, the system is equipped with pressure monitoring and regulation devices to regulate the flow rate and pressure, ensuring that the grinding aid reaches the expected concentration and flow rate when entering the mill. However, if filter blockage or vacuum occurs during the grinding aid conveying process, it is necessary to directly drain the filter through the bypass manual valve and then clean the filter online until normal operation is restored. Throughout this process, the conveying pump, conveying pipeline assembly, and mill must be shut down, which seriously affects the continuity of the production line. Especially in large-scale production environments, frequent shutdowns can easily lead to a decrease in output. Utility Model Content

[0004] The purpose of this utility model is to provide a pipeline interconnection filtration and vacuum exhaust device. The pump assembly is connected to the independently operating front filter assembly and rear filter assembly through an upper T-shaped three-way pipe and two first switch valves. If one filter assembly needs to be stopped for cleaning, the other filter assembly can be started to continue working, so as to ensure the stable and continuous delivery of grinding aid, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe interconnection filtration and vacuum drainage device, comprising an upper hollow plate frame, a front liquid guiding horizontal pipe and a rear liquid guiding horizontal pipe installed on the front and rear outer walls of the upper hollow plate frame, and a first switch valve installed on the same end of the front liquid guiding horizontal pipe and the rear liquid guiding horizontal pipe. An upper T-shaped tee pipe is installed at the upper end of the two first switch valves, and a pumping assembly is installed at the end of the upper T-shaped tee pipe away from the first switch valve. A front filter pipe assembly and a rear filter pipe assembly are respectively installed at the ends of the front liquid guiding horizontal pipe and the rear liquid guiding horizontal pipe away from the first switch valve. A lower tee drain pipe is installed between the ends of the front filter pipe assembly and the rear filter pipe assembly below the two first switch valves.

[0006] Preferably, the pump assembly includes a horizontal centrifugal pump installed on one side of the top of the upper hollow plate frame and a connecting pipe installed at the outlet end of the horizontal centrifugal pump, with one end of the connecting pipe fixedly connected to one end of the upper T-shaped tee pipe.

[0007] Preferably, both ends of the upper T-shaped three-way pipe away from the horizontal centrifugal pump are equipped with right-angle connectors, and the lower end of the right-angle connector is connected to the upper end of the first switching valve.

[0008] Preferably, the pre-filter assembly and the post-filter assembly have the same structure. The pre-filter assembly includes a second switching valve installed on the inlet end of the lower three-way drain pipe, a glass rotor flow meter installed on the end of the front guide pipe away from the first switching valve, and a diaphragm valve horizontally installed at the lower end of the glass rotor flow meter. A Y-type filter is installed at the inlet end of the second switching valve, and a bypass pipe is installed between the diaphragm valve and the Y-type filter.

[0009] Preferably, a pressure gauge is installed at one end of the bypass pipe near the Y-type filter, and the outlet end of the pressure gauge is connected to the inlet end of the Y-type filter.

[0010] Preferably, a U-shaped diverter is installed above the bypass pipe, and a third switching valve is installed on the U-shaped diverter.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The pipeline interconnection filtration and vacuum exhaust device is equipped with a structure that cooperates with each other, including an upper hollow plate frame, a pump assembly, an upper T-shaped tee, two first switch valves, a front guide horizontal pipe, a front filter assembly, and a rear guide horizontal pipe. The pump assembly is connected to the independently operating front and rear filter assemblies through the upper T-shaped tee and the two first switch valves. If one filter assembly needs to be stopped for cleaning, the other filter assembly can be started to continue working to ensure the stable and continuous delivery of grinding aid. Thus, through the complementary operation of the dual filter assemblies, when one assembly needs maintenance or fails, the other assembly can seamlessly take over, thereby avoiding sudden interruption of the pipeline system and ensuring the continuity of the production process.

[0012] The system incorporates two independently operating filter assemblies, along with a T-shaped tee and a first switching valve. This allows for rapid switching to the backup filter assemblies without interrupting the grinding aid delivery. This not only shortens downtime for maintenance but also reduces the impact on the mill's production schedule, ensuring the continuity and stability of the grinding process. Furthermore, the maintenance and cleaning of the filter assemblies can be carried out without affecting the normal operation of the mill system. Operators can prepare the backup assemblies in advance, perform maintenance, and then switch to the backup assemblies without waiting for the system to completely shut down. This avoids abnormal pressure or system instability caused by filter blockage, thereby reducing the possibility of accidents. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a side view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0017] In the diagram: 1. Upper hollow plate frame; 2. Front guide tube; 3. Rear guide tube; 4. Horizontal centrifugal pump; 5. Upper T-shaped tee; 501. Right angle connector; 6. First switching valve; 7. Front filter assembly; 701. Bypass pipe; 702. Pressure gauge; 703. Y-type filter; 704. Second switching valve; 705. Diaphragm valve; 706. Glass rotor flow meter; 8. Rear filter assembly; 9. Lower tee drain pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figure 1-4 An embodiment of this utility model provides a pipe interconnection filtration and vacuum exhaust device, including an upper hollow plate frame 1, a front liquid guiding horizontal pipe 2 and a rear liquid guiding horizontal pipe 3 installed on the front and rear outer walls of the upper hollow plate frame 1, and a first switch valve 6 installed on the same end of the front liquid guiding horizontal pipe 2 and the rear liquid guiding horizontal pipe 3. An upper T-shaped three-way pipe 5 is installed on the upper end of the two first switch valves 6, and a pumping assembly is installed on the end of the upper T-shaped three-way pipe 5 away from the first switch valve 6. A front filter pipe group 7 and a rear filter pipe group 8 are respectively installed on the ends of the front liquid guiding horizontal pipe 2 and the rear liquid guiding horizontal pipe 3 away from the first switch valve 6. A lower three-way drain pipe 9 is installed between the ends of the front filter pipe group 7 and the rear filter pipe group 8 below the two first switch valves 6.

[0020] The pump assembly includes a horizontal centrifugal pump 4 installed on one side of the top of the upper hollow plate frame 1 and a connecting pipe installed at the outlet end of the horizontal centrifugal pump 4. One end of the connecting pipe is fixedly connected to one end of the upper T-shaped three-way pipe 5. The horizontal centrifugal pump 4 sends the grinding aid through the upper T-shaped three-way pipe 5 into the front guide horizontal pipe 2 or the rear guide horizontal pipe 3. At this time, one of the first switch valves 6 is opened.

[0021] Both ends of the upper T-shaped three-way pipe 5 away from the horizontal centrifugal pump 4 are equipped with right-angle connectors 501. The lower end of the right-angle connector 501 is connected to the upper end of the first switching valve 6. The right-angle connector 501 is used to connect the upper T-shaped three-way pipe 5 and the first switching valve 6 to ensure that the grinding aid can be continuously and stably delivered into the front guide horizontal pipe 2 or the rear guide horizontal pipe 3.

[0022] The pre-filter assembly 7 and the post-filter assembly 8 have the same structure. The pre-filter assembly 7 includes a second switching valve 704 installed on the inlet end of the lower three-way drain pipe 9, a glass rotor flow meter 706 installed on the end of the front guide horizontal pipe 2 away from the first switching valve 6, and a diaphragm valve 705 horizontally installed at the lower end of the glass rotor flow meter 706. A Y-type filter 703 is installed at the inlet end of the second switching valve 704. A bypass pipe 701 is installed between the diaphragm valve 705 and the Y-type filter 703. Taking the pre-filter assembly 7 as an example, the front guide horizontal pipe 2 allows the grinding aid to be sent into the Y-type filter 703 through the glass rotor flow meter 706, the diaphragm valve 705, the bypass pipe 701, and the pressure gauge 702. The Y-type filter 703 effectively intercepts impurities and particles in the liquid, protects the subsequent pipelines and equipment from contamination, extends the service life of the equipment, and ensures the purity of the liquid, thereby ensuring the stability of the process and the quality of the product.

[0023] A pressure gauge 702 is installed at one end of the bypass pipe 701 near the Y-type filter 703. The outlet end of the pressure gauge 702 is connected to the inlet end of the Y-type filter 703. A U-shaped diverter is installed above the bypass pipe 701, and a third switch valve is installed on the U-shaped diverter. The pressure gauge 702 is convenient for judging the degree of filter blockage or the pressure status of the system, so as to take timely maintenance measures and avoid equipment damage or leakage caused by excessive pressure. The introduction of the glass rotor flow meter 706 makes the monitoring of liquid flow more intuitive and accurate, helping operators to grasp the working status of the filter.

[0024] When inspecting, cleaning and maintaining the pre-filter assembly 7, it is necessary to close the first switch valve 6 connected to the pre-guided horizontal pipe 2 and the second switch valve 704 connected to the tail end of the Y-type filter 703. At this time, the pipeline between the first switch valve 6 and the second switch valve 704 is in a closed state, and then the staff can drain and flush the impurities in the Y-type filter 703 until the pipeline between the first switch valve 6 and the second switch valve 704 is cleaned.

[0025] In this embodiment, the operator first turns on the pump assembly and gradually increases the pressure to ensure normal operation. Then, the operator selects to open one of the first switch valves 6. The grinding aid enters the front guide pipe 2 or the rear guide pipe 3 through the open first switch valve 6. Taking the first switch valve 6 connected to the front guide pipe 2 as an example, the grinding aid enters the front filter assembly 7 through the first switch valve 6 and the front guide pipe 2. The filtered grinding aid is then sent to the mill via the front filter assembly 7 and the lower three-way drain pipe 9. During this process, the operator must closely monitor the pipeline pressure and flow rate of the front filter assembly 7 to ensure no abnormalities occur. If abnormal pressure or insufficient flow is detected, operation should be immediately stopped, and pipeline blockage or leakage should be investigated. During normal delivery, the operator adjusts the opening degree of the first switch valve 6 as needed to allow the grinding aid to flow in the filter assembly. After filtration by the filter assembly, impurities are effectively removed.

[0026] When maintenance of the filter assembly is required or a malfunction occurs, the operator closes one of the first switch valves 6. Taking the first filter assembly 7 as an example, which requires inspection and maintenance, the operator closes the first switch valve 6 connected to the front guide horizontal pipe 2 and opens the first switch valve 6 connected to the rear guide horizontal pipe 3. At this time, the rear guide horizontal pipe 3, the rear filter assembly 8, and the lower three-way drain pipe 9 form a passage to continuously and stably supply the grinding aid to the mill. The front guide horizontal pipe 2, the rear filter assembly 8, and the lower three-way drain pipe 9 form a closure, thereby draining the residual grinding aid in the front filter assembly 7 and performing the necessary maintenance operations.

Claims

1. A pipe-to-pipe filtration and vacuum exhaust device, characterized in that: The system includes an upper hollow plate frame (1), a front liquid guide horizontal pipe (2) and a rear liquid guide horizontal pipe (3) installed on the front and rear outer walls of the upper hollow plate frame (1), and a first switch valve (6) installed on the same end of the front liquid guide horizontal pipe (2) and the rear liquid guide horizontal pipe (3). An upper T-shaped three-way pipe (5) is installed on the upper end of the two first switch valves (6), and a pump assembly is installed on the end of the upper T-shaped three-way pipe (5) away from the first switch valve (6). A front filter pipe assembly (7) and a rear filter pipe assembly (8) are respectively installed on the ends of the front liquid guide horizontal pipe (2) and the rear liquid guide horizontal pipe (3) away from the first switch valve (6). A lower three-way drain pipe (9) is installed between the ends of the front filter pipe assembly (7) and the rear filter pipe assembly (8) below the two first switch valves (6).

2. The pipeline inter-filtration and vacuum exhaust device according to claim 1, characterized in that: The pump assembly includes a horizontal centrifugal pump (4) installed on one side of the top of the upper hollow plate frame (1) and a connecting pipe installed at the outlet end of the horizontal centrifugal pump (4), with one end of the connecting pipe fixedly connected to one end of the upper T-shaped tee pipe (5).

3. The pipeline inter-filtration and vacuum exhaust device according to claim 1, characterized in that: The upper T-shaped three-way pipe (5) is equipped with right-angle connectors (501) at both ends away from the horizontal centrifugal pump (4), and the lower end of the right-angle connector (501) is connected to the upper end of the first switch valve (6).

4. The pipeline inter-filtration and vacuum exhaust device according to claim 1, characterized in that: The pre-filter assembly (7) and the post-filter assembly (8) have the same structure. The pre-filter assembly (7) includes a second switch valve (704) installed on the inlet end of the lower three-way drain pipe (9), a glass rotor flow meter (706) installed on the end of the front guide horizontal pipe (2) away from the first switch valve (6), and a diaphragm valve (705) horizontally installed at the lower end of the glass rotor flow meter (706). A Y-type filter (703) is installed at the inlet end of the second switch valve (704), and a bypass pipe (701) is installed between the diaphragm valve (705) and the Y-type filter (703).

5. A pipe-to-pipe filtration and vacuum exhaust device according to claim 4, characterized in that: A pressure gauge (702) is installed at one end of the bypass pipe (701) near the Y-type filter (703), and the outlet end of the pressure gauge (702) is connected to the inlet end of the Y-type filter (703).

6. The pipeline inter-filtration and vacuum exhaust device according to claim 4, characterized in that: A U-shaped diversion pipe is installed above the bypass pipe (701), and a third switching valve is installed on the U-shaped diversion pipe.

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