Automatic back flush returns liquid and filters station
Technical Field
The utility model belongs to the technical field of recoil filter station technique and specifically relates to an automatic liquid filter station is returned in back flush.
Background
In the automatic coal mining process, the emulsion of the coal mine hydraulic support is easily polluted, the emulsion needs to be filtered by a backwashing filter station, and a filter structure needs to be cleaned by backwashing after being used for a certain time; the existing backwashing filter station is mostly operated manually when a filter structure is cleaned by backwashing, the operation is complex, the backwashing is required to be stopped when the filter structure is cleaned, the backwashing can not be carried out at the working position, and the production efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide an automatic back flush returns liquid filter station to need not to shut down the mesh of going on when reaching the back flush clearance.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the automatic back-flushing liquid-returning filtering station comprises a bottom plate, a group of filtering cylinder bodies, a liquid inlet pipe, a liquid outlet pipe, a back-flushing pipe and a sewage discharge pipe, wherein the group of filtering cylinder bodies are arranged on the bottom plate side by side; and a liquid outlet side three-way valve is correspondingly arranged on the liquid outlet side of each filtering cylinder body, one opening of each liquid outlet side three-way valve is communicated with a liquid outlet pipe, the other opening of each liquid outlet side three-way valve is communicated with the filtering cylinder body, and the third opening of each liquid outlet side three-way valve is communicated with a back flushing pipe.
And furthermore, the device also comprises a controller for controlling the valve to work, and all the liquid inlet side three-way valves and the liquid outlet side three-way valves are connected with the controller.
The liquid inlet side three-way valve and the liquid outlet side three-way valve are both pneumatic three-way ball valves.
The liquid inlet pipe and the sewage discharge pipe are arranged on one side of the filtering cylinder body, and the liquid outlet pipe and the backflushing pipe are arranged on the other side of the filtering cylinder body.
And an overflow valve is arranged on the filtering cylinder body.
And the liquid inlet side three-way valve and the liquid outlet side three-way valve on two sides of each filtering cylinder body are arranged oppositely.
The liquid inlet pipe and the backflushing pipe are connected through a connecting branch, and a straight-through valve is arranged on the connecting branch.
And a liquid inlet pressure sensor is arranged on the liquid inlet pipe, and the liquid inlet pressure sensor and the straight-through valve are both connected with a controller.
An outlet connected with the liquid outlet side three-way valve is arranged on the filtering cylinder body, a liquid outlet pressure sensor is arranged at the outlet position, and the liquid outlet pressure sensor is connected with a controller.
Feed liquor pipe, blow off pipe, drain pipe and recoil pipe parallel arrangement side by side, feed liquor pipe, blow off pipe, drain pipe and recoil pipe all are linked together through the opening of connecting bend and the valve that corresponds.
Compared with the prior art, the utility model, have following advantage:
the automatic backwashing liquid-returning filtering station is reasonable in structural design, the liquid inlet side of each filtering cylinder body is connected with a liquid inlet pipe and a blow-off pipe through an independent liquid inlet side three-way valve, the liquid outlet side of each filtering cylinder body is connected with a liquid outlet pipe and a backwashing pipe through an independent liquid outlet side three-way valve, the filtering cylinder body needing backwashing can be cleaned, the normal filtering work of other filtering cylinder bodies is not influenced during cleaning, the backwashing is not required to be stopped during cleaning, and the normal production is not influenced; and the automatic control can be detected for backwashing, the timing automatic backwashing and the manual control for backwashing, so that different requirements of users can be met, and the operation is simple and convenient.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic top view of the filtering station of the present invention.
Fig. 2 is a schematic side view of the filtering station of the present invention.
In the figure:
1. the liquid filter comprises a bottom plate, 2, a filter cylinder body, 3, a liquid inlet pipe, 4, a liquid inlet, 5, a liquid inlet pressure sensor, 601, a liquid inlet side three-way valve I, 602, a liquid inlet side three-way valve II, 603, a liquid inlet side three-way valve III, 604, a liquid inlet side three-way valve IV, 7, a sewage discharge pipe, 8, a sewage discharge outlet, 9, a liquid outlet pipe, 101, a liquid outlet side three-way valve I, 102, a liquid outlet side three-way valve II, 103, a liquid outlet side three-way valve III, 104, a liquid outlet side three-way valve IV, 11, a backflushing pipe, 12, a straight-through valve, 13.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the automatic backwashing liquid-returning filtering station comprises a bottom plate 1, a group of filtering cylinder bodies 2, a liquid inlet pipe 3, a liquid outlet pipe 9, a backwashing pipe 11 and a sewage discharge pipe 7, wherein the group of filtering cylinder bodies are arranged on the bottom plate side by side, and the liquid inlet pipe, the liquid outlet pipe, the backwashing pipe and the sewage discharge pipe are all connected with the filtering cylinder bodies.
A liquid inlet side three-way valve is correspondingly arranged at the liquid inlet side of each filtering cylinder body, one opening of each liquid inlet side three-way valve is communicated with a liquid inlet pipe, the other opening of each liquid inlet side three-way valve is communicated with the filtering cylinder body, and the third opening of each liquid inlet side three-way valve is communicated with a sewage discharge pipe; the liquid outlet side of each filtering cylinder body is correspondingly provided with a liquid outlet side three-way valve, one opening of each liquid outlet side three-way valve is communicated with a liquid outlet pipe, the other opening of each liquid outlet side three-way valve is communicated with the filtering cylinder body, and the third opening of each liquid outlet side three-way valve is communicated with a back flushing pipe.
Preferably, four filtering cylinder bodies are arranged side by side, the filtering cylinder bodies are of a vertical cylinder structure, and the bottoms of the filtering cylinder bodies are fixed on the bottom plate; the filtering cylinder body is provided with an overflow valve 14.
The liquid inlet pipe and the sewage discharge pipe are arranged on one side of the filtering cylinder body, and the liquid outlet pipe and the backflushing pipe are arranged on the other side of the filtering cylinder body; the liquid inlet pipe, the blow-off pipe, the liquid outlet pipe and the backflushing pipe are arranged in parallel side by side, and are communicated with the openings of the corresponding valves through connecting bent pipes; the structure is compact, and the arrangement and installation are convenient.
The end part of the liquid inlet pipe is provided with a liquid inlet 4 connected with an external pipeline, and the end part of the liquid outlet pipe is provided with a liquid outlet; the end part of the sewage discharge pipe is provided with a sewage discharge port 8 connected with an external sewage discharge structure; one end of the back flushing pipe is provided with a back flushing connector connected with an external back flushing liquid conveying pipe, and the other end of the back flushing pipe 11 is connected with the liquid inlet pipe through a valve and a connecting pipe.
The liquid inlet side three-way valve and the liquid outlet side three-way valve are both pneumatic three-way ball valves; the four liquid inlet side three-way valves are arranged in parallel and are respectively a liquid inlet side three-way valve I601, a liquid inlet side three-way valve II 602, a liquid inlet side three-way valve III 603 and a liquid inlet side three-way valve IV 604; the liquid outlet side three-way valves are also four in parallel and are respectively a liquid outlet side three-way valve I101, a liquid outlet side three-way valve II 102, a liquid outlet side three-way valve III 103 and a liquid outlet side three-way valve IV 104; the liquid inlet side three-way valve and the liquid outlet side three-way valve are oppositely arranged into a group and are arranged in the same form; if the liquid inlet side three-way valve I601 and the liquid outlet side three-way valve I1001 that correspond first filter cylinder body setting, liquid inlet side three-way valve I601 and liquid outlet side three-way valve I1001 set up in first filter cylinder body both sides relatively.
The automatic back-flushing liquid-returning filtering station also comprises a controller for controlling the work of each valve, and the controller is a PLC (programmable logic controller) 15.
The liquid inlet pipe and the recoil pipe are connected through a connecting branch, a straight-through valve 12 is arranged on the connecting branch, liquid can be directly fed into the recoil pipe through the liquid inlet pipe for recoil, self circulation is formed, the structure is compact, and arrangement and installation are convenient; and the operation is simple and convenient.
All the liquid inlet side three-way valves and the liquid outlet side three-way valves are connected with a controller; be equipped with feed liquor pressure sensor 5 on the feed liquor pipe, feed liquor pressure sensor and through valve all link to each other with the controller, and accessible feed liquor pressure sensor detects feed liquor intraductal pressure to judge whether need carry out the recoil washing.
The filtering cylinder body is provided with an outlet connected with the liquid outlet side three-way valve, a liquid outlet pressure sensor 13 is arranged at the position of the outlet and connected with the controller, whether the filtering cylinder body needs to be backflushed and cleaned or not is judged according to the pressure sensor corresponding to each filtering cylinder body, and the controller is used for automatically controlling the filtering cylinder body.
In the utility model, the liquid inlet side of each filtering cylinder body is connected with a liquid inlet pipe and a blow-off pipe through an independent liquid inlet side three-way valve, and the liquid outlet side of each filtering cylinder body is connected with a liquid outlet pipe and a backflushing pipe through an independent liquid outlet side three-way valve; for example, a first filtering cylinder body is subjected to back flushing operation, the liquid inlet side three-way valve I of the corresponding first filtering cylinder body closes the liquid inlet opening of the valve, and the other two openings are communicated, namely the filtering cylinder body is communicated with the sewage discharge pipe; the liquid outlet side three-way valve I of the corresponding first filtering cylinder body is used for closing the liquid outlet opening of the valve, and the other two openings are communicated, namely the filtering cylinder body is communicated with the backflushing pipe, so that the independent backflushing cleaning of the first filtering cylinder body is realized; other filtering cylinder bodies normally filter and work without stopping the machine for cleaning.
Therefore, the utility model can realize the independent cleaning of the filtering cylinder body which needs the back flushing cleaning, the normal filtering work of other filtering cylinder bodies is not influenced during the cleaning, the back flushing cleaning is not needed to be carried out, and the normal production is not influenced; and the automatic control can be detected for backwashing, the timing automatic backwashing and the manual control for backwashing, so that different requirements of users can be met, and the operation is simple and convenient.
The above-mentioned is only for the description of the preferred embodiments of the present invention, and the above-mentioned technical features can be combined at will to form a plurality of embodiments of the present invention.
The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.