CN212561856U

CN212561856U - Back-flushing dredging system for oil depot sewage pipeline

Info

Publication number: CN212561856U
Application number: CN202020880401.1U
Authority: CN
Inventors: 吴双凌; 余浩; 王群; 王垚; 余玉林; 郭盼; 龚艺; 甘伟; 李彪
Original assignee: Wuhan Iron And Steel Wuhan Tinplate Co ltd
Current assignee: Wuhan Iron And Steel Wuhan Tinplate Co ltd
Priority date: 2020-05-23
Filing date: 2020-05-23
Publication date: 2021-02-19
Anticipated expiration: 2030-05-23

Abstract

The utility model discloses an oil depot sewage pipes back flush dredging system relates to metallurgical technical field, and this oil depot sewage pipes back flush dredging system includes: the device comprises a first stop valve, a second stop valve, a third stop valve, a fourth stop valve, a check valve, a sewage pump, a sewage drain pit, a connecting pipeline and a rolling mill hot water pump. The embodiment of the utility model provides an oil depot sewage pipes back flush dredging system sets up a plurality of stop valves when taking place fatlute in the face of sewage pipes and blockking up, utilize back flush principle ability labour saving and time saving's mediation sewage pipes, avoid pump and the electrical equipment damage that the pipeline blockked up and bring, oil depot one-level fire safety risk, oil depot ground large tracts of land pollutes the scheduling problem, through improving current pipeline structure, make full use of current hot water washing pipeline, it is less to drop into, easily be under construction and management, work load and cost of labor have been saved, and the facilitate promotion is implemented.

Description

Back-flushing dredging system for oil depot sewage pipeline

Technical Field

The utility model relates to the technical field of metallurgy, especially, relate to an oil depot sewage pipes back flush dredging system.

Background

In a cold rolling unit, an underground oil depot is provided with equipment and pipelines such as hydraulic pressure, lubrication, process fluid and the like. In the production and equipment operation process, oily liquid-containing wastewater, oily sludge-containing wastewater and emulsified liquid-containing wastewater, which are collectively called oily wastewater, are generated and collected into an oil depot drainage pit through an oil depot trench. Waste water in the blowdown hole reaches certain liquid level, and the dredge pump can automatic start, pumps waste water to the waste water treatment station through sewage pipes, carries out waste water treatment.

When the waste water does not flow or is slow, and the air temperature is low, emulsion, oil and oil sludge in the waste water can be condensed and solidified together to form oil sludge and oil residue, so that a trench and a sewage discharge pipeline of an oil depot are blocked. According to oily waste water liquid level, the untimely interval starts during sump dredge pump, consequently when the pump does not start, the oily waste water of blowdown pipeline can be static, and when the temperature was on the low side, the solidification goes out fatlute dregs of fat along the pipeline wall, and the fatlute of taking out in the blowdown pit in addition will appear the situation of blockking up the blowdown pipeline. Especially in winter, the sewage pipes often suffer from sludge blockage.

Clogging of the sewer pipes can cause the following problems:

1. damaging the sewage pump and the motor. The pump set is put into an automatic use state, after the sewage pump is started, the liquid level of the pit cannot drop due to the blockage of a sewage pipeline, and the pump and the motor can be started all the time. At the same time, the pump outlet will hold a larger pressure, so that the pump and the motor are always in high-load operation. Thus, the pump and the motor are damaged, and electric energy is wasted.

2. The oil depot pits are full, and the ground of the oil depot is polluted. The method does not meet the field 6S management requirement, and can cause field environmental pollution and secondary oil sludge diffusion pollution.

3. And the on-site electromechanical equipment investigation work is increased. If the sewage discharge system works abnormally, the technical personnel of the electromechanical instrument need to check whether the equipment is in good condition and then judge whether the pipeline is blocked. Thus, the workload of each professional is increased invisibly.

4. And the work of cleaning the ground of the oil depot is increased. The oil depot ground is polluted, the ground can be gently shaken and washed, the daily workload is increased, and new oily wastewater is generated.

5. Increase the desilting work of sewage pipes, bring the safe risk that the oil depot kindled simultaneously. A transmission dredging method is adopted, a check valve and a gate valve of an outlet pipeline of the pump are required to be disassembled, an iron rod is used for dredging oil sludge in the pipe, and an iron hammer is used for knocking the pipeline to vibrate the oil sludge. If the device is still not operated, the device needs to be fired to cut off the elbow of the high pipeline for dredging. The method is time-consuming and labor-consuming, and has the first-level fire safety risk of the oil depot.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of relevant product among the prior art, the utility model provides an oil depot sewage pipes back flush dredging system solves the problem that sewage pipes blockked up.

The utility model provides an oil depot sewage pipes back flush dredging system sets up on sewage pipes and rolling mill hot water line, oil depot sewage pipes back flush dredging system includes: the device comprises a first stop valve, a second stop valve, a third stop valve, a fourth stop valve, a check valve, a sewage pump, a sewage drain pit, a connecting pipeline and a rolling mill hot water pump, wherein the first stop valve, the fourth stop valve and the check valve are sequentially arranged on a sewage drain pipeline, and the sewage drain pipeline is communicated with the sewage drain pit through the sewage drain pump; the rolling mill hot water pipeline is provided with the second stop valve and a rolling mill hot water pump and is communicated with an external hot water source through the rolling mill hot water pump; the connecting pipeline is arranged at the parallel position of the sewage discharge pipeline and the hot water pipeline of the rolling mill, two ends of the connecting pipeline are respectively communicated at the inlet sides of the first stop valve and the second stop valve, and a third stop valve is arranged on the pipeline communication.

In certain embodiments of the present invention, the first stop valve and the fourth stop valve have the same diameter as the sewage pipe, the third stop valve has the same diameter as the connecting pipe, and the third stop valve has the same diameter as the hot water pipe.

In certain embodiments of the present invention, the connecting line has a smaller path than 1/2 of the drain path.

Compared with the prior art, the utility model discloses there is following advantage:

the embodiment of the utility model provides an oil depot sewage pipes back flush dredging system sets up a plurality of stop valves when taking place fatlute in the face of sewage pipes and blockking up, utilize back flush principle ability labour saving and time saving's mediation sewage pipes, avoid pump and the electrical equipment damage that the pipeline blockked up and bring, oil depot one-level fire safety risk, oil depot ground large tracts of land pollutes the scheduling problem, through improving current pipeline structure, make full use of current hot water washing pipeline, it is less to drop into, easily be under construction and management, work load and cost of labor have been saved, and the facilitate promotion is implemented.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of the principle structure of the back-flushing dredging system of the oil depot sewage pipeline.

Description of reference numerals:

1-a first stop valve, 2-a second stop valve, 3-a third stop valve, 4-a fourth stop valve, 5-a check valve, 6-a sewage pump, 7-a sewage pit, 8-a connecting pipeline and 9-a hot water pump of a rolling mill.

Detailed Description

In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. It is to be understood that the embodiments described are merely exemplary of the invention, and that no limitations are intended to the details of construction or design herein shown. The present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of providing a more thorough understanding of the present disclosure.

Referring to fig. 1, the oil depot sewage pipeline backwashing dredging system is arranged on a sewage pipeline and a rolling mill hot water pipeline, and comprises a first stop valve 1, a second stop valve 2, a third stop valve 3, a fourth stop valve 4, a check valve 5, a sewage pump 6, a sewage pit 7, a connecting pipeline 8 and a rolling mill hot water pump 9, wherein the first stop valve 1, the fourth stop valve 4 and the check valve 5 are sequentially arranged on the sewage pipeline, the sewage pipeline is communicated with the sewage pit 7 through the sewage pump 6, the first stop valve 1 is used for preventing hot water from reaching a sewage station through the sewage pipeline, and the fourth stop valve 4 and the check valve 5 are outlets for sewage and oil sludge in sewage pipeline backwashing respectively; the second stop valve 2 and the rolling mill hot water pump 9 are arranged on the rolling mill hot water pipeline, the rolling mill hot water pipeline is communicated with an external hot water source through the rolling mill hot water pump 9, and the second stop valve 2 is used for preventing the hot water pump from influencing other hot water use points when being started; the connecting pipeline 8 is arranged at the parallel position of the sewage discharge pipeline and the hot water pipeline of the rolling mill, two ends of the connecting pipeline 8 are respectively communicated at the inlet sides of the first stop valve 1 and the second stop valve 2, and a third stop valve 3 is arranged on the pipeline communication.

In the embodiment of the present invention, the diameters of the first stop valve 1 and the fourth stop valve 4 are the same as the diameter of the sewage pipeline, the diameter of the third stop valve 3 is the same as the diameter of the connecting pipeline 8, and the diameter of the third stop valve 3 is the same as the diameter of the hot water pipeline of the rolling mill; the drift diameter of the connecting pipeline 8 is smaller than 1/2 of the drift diameter of the sewage discharge pipeline, so that the hot water amount of backwashing can be conveniently controlled.

The embodiment of the utility model provides an oil depot sewage pipes back flush dredging system concrete theory of operation as follows:

the dredge pump 6 in the oil depot is powered off, the side plate of the check valve 5 is opened, the stop valves are opened at the same time, the first stop valve 1, the second stop valve 2 and the third stop valve 3 are closed in sequence, the rolling mill hot water pump 9 is started, after the hot water is normally circulated, the third stop valve 3 is slowly opened, the hot water is led into the sewage discharge pipeline through a hot water pipeline of the rolling mill and a communication pipeline, the oil sludge in the sewage discharge pipeline is discharged from a side plate of the check valve 5 under the hot water and the water pressure by utilizing the back washing effect, is stored into a sewage pit 7 along with a sewage discharge pump 6, when no sludge is discharged from an outlet of the side plate of the check valve 5, the third stop valve 3 is closed, and after the hot water pump 9 of the rolling mill is powered off and the oil sludge washed out by backwashing is cleaned, the side plate of the check valve 5 is recovered, and the first stop valve 1 and the second stop valve 2 are opened to recover the normal operation.

Those not described in detail in this specification are within the skill of the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent replacements may be made for some of the technical features of the embodiments. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims

1. The utility model provides an oil depot sewage pipes back flush dredging system, sets up on sewage pipes and rolling mill hot water pipeline, its characterized in that, oil depot sewage pipes back flush dredging system includes: the device comprises a first stop valve, a second stop valve, a third stop valve, a fourth stop valve, a check valve, a sewage pump, a sewage drain pit, a connecting pipeline and a rolling mill hot water pump, wherein the first stop valve, the fourth stop valve and the check valve are sequentially arranged on a sewage drain pipeline, and the sewage drain pipeline is communicated with the sewage drain pit through the sewage drain pump; the rolling mill hot water pipeline is provided with the second stop valve and a rolling mill hot water pump and is communicated with an external hot water source through the rolling mill hot water pump; the connecting pipeline is arranged at the parallel position of the sewage discharge pipeline and the hot water pipeline of the rolling mill, two ends of the connecting pipeline are respectively communicated at the inlet sides of the first stop valve and the second stop valve, and a third stop valve is arranged on the pipeline communication.

2. The oil depot drain pipe back-flushing dredging system of claim 1, wherein: the drift diameters of the first stop valve and the fourth stop valve are the same as the drift diameter of the sewage discharge pipeline, the drift diameter of the third stop valve is the same as the drift diameter of the connecting pipeline, and the drift diameter of the third stop valve is the same as the drift diameter of the hot water pipeline of the rolling mill.

3. The oil depot drain pipe back-flushing dredging system of claim 2, wherein: the drift diameter of the connecting pipeline is smaller than 1/2 of the drift diameter of the sewage discharge pipeline.