Mud pit water replenishing and sedimentation preventing device

Abstract

The mud pit water replenishing and sedimentation preventing device comprises a cleaning pipeline, a mud output pipeline and a mud backflow pipeline, one end of the mud output pipeline is connected with a mud inlet pipe, and the other end of the mud output pipeline is externally connected with a check valve through a mud pump. The mud backflow pipeline comprises an annular pipe annularly arranged in the mud pool, one end of the annular pipe is externally connected with a mother pipe plug, and the other end of the annular pipe is communicated with the cleaning pipeline. A conventional slurry conveying system is improved, the cleaning pipeline and the slurry return pipeline are arranged, and the water pipe of the flushing pipeline is communicated with the annular pipeline, the slurry inlet pipe and the public pipeline, so that the slurry return pipeline can operate intermittently according to factors such as shutdown duration, air temperature, weather and slurry characteristics by controlling opening and closing of a valve; the electric control valve and the electric gate valve are closed, the electric control valve is opened, the slurry pump is started, the slurry is re-injected into the slurry pool through the backflow branch pipe assembly of a special structure, and the effects of stirring, homogenizing and precipitation prevention are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mud pool treatment, and more specifically to a mud pool water replenishment and sedimentation prevention device. Background Art

[0002] During the construction of bored piles, underground continuous walls and directional drilling, mud needs to be prepared to protect the hole (slot) wall, balance the formation pressure, lubricate and cool the drill bit, and remove drilling debris. The prepared mud is placed in a mud pool. If it is left there for a long time, the mud will precipitate and stratify. Mud pools are mostly arranged in the open air. After water evaporates and seeps, the mud ratio will change, further aggravating the mud precipitation phenomenon.

[0003] The conventional mud transportation system includes a mud pool, a mud pump, supporting valves and pipelines. During normal operation, the mud in the mud pool can be pressurized and transported to the mud use point.

[0004] At present, the existing solution to the mud pool sedimentation problem is to add water to the mud pool and stir it with a paddle mixer. However, the amount of water added is difficult to control accurately, the paddle mixer has high energy consumption and large wear, and is limited by the shaft length and blade diameter of the mixer, so the stirring effect is difficult to guarantee.

[0005] Therefore, it is necessary to propose a mud pool water replenishment and sedimentation prevention device to solve the above problems. Utility Model Content

[0006] The utility model provides a mud pool water replenishment and sedimentation prevention device to solve the problems of high energy consumption, large wear and poor effect of a mixer caused by sedimentation in the existing mud pool.

[0007] According to one aspect of the utility model, a mud pool water replenishment and anti-sedimentation device is provided, comprising a cleaning pipeline, a mud output pipeline and a mud return pipeline, wherein one end of the mud output pipeline is connected to a slurry inlet pipe, and the other end thereof is connected to an external check valve through a mud pump; the mud return pipeline comprises an annular pipe annularly arranged in the mud pool, one end of the annular pipe is externally connected to a female pipe plug, and the other end thereof is connected to the cleaning pipeline, the cleaning pipeline comprises a flushing pump and a water pipe externally connected to circulating water, the water pipe is externally connected to an electric valve through the flushing pump, the annular pipe is connected to a water pipe outside the electric valve, and the slurry inlet pipe is connected to a water pipe outside the electric valve through a common pipeline with an electric regulating valve.

[0008] Preferably, based on the above solution, the annular tubes are connected to each other via a connecting tube, and a reflux branch pipe assembly is provided on the connecting tube and the annular tubes at intervals.

[0009] Preferably, based on the above solution, the reflux branch pipe assembly includes a branch pipe connected to the connecting pipe, and the branch pipe is provided with a spray hole.

[0010] Preferably, based on the above solution, the angle between adjacent injection holes at the same height is 45 degrees, and the injection holes are arranged at intervals along the height of the branch pipe.

[0011] Preferably, based on the above solution, the return branch pipe assembly on the connecting pipe further includes an elbow, and the elbow is installed at the free end of the branch pipe.

[0012] Preferably, based on the above scheme, a check valve and a flow meter are provided between the flushing pump and the electric valve, an electric control valve is provided on the pipeline between the check valve and the mud use point, and an electric gate valve is connected to the output end pipeline of the flow meter.

[0013] The utility model discloses a mud pool water replenishment and sedimentation prevention device, which transforms a conventional mud conveying system, arranges a cleaning pipeline and a mud return pipeline, and is connected with a ring pipeline, a slurry inlet pipe and a common pipeline through a water pipe of the flushing pipeline. The mud return pipeline can be operated intermittently according to factors such as the shutdown duration, temperature, weather and mud characteristics by controlling the opening and closing of the valve, the electric control valve and the electric gate valve are closed, the electric regulating valve is opened, the mud pump is started, and the mud is re-injected into the mud pool through a return branch pipe component with a special structure, so as to play the role of stirring, homogenizing and sedimentation prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 This is a schematic diagram of the principle structure of the mud pool water replenishment and sedimentation prevention device of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the reflux branch pipe assembly of the utility model;

[0017] Figure 3 For the utility model Figure 2 Schematic diagram of AA structure;

[0018] Description of Figure Numbers:

[0019] Mud output pipeline 1, filter 11, slurry inlet pipe 10, mud pump 12, check valve 13, electric control valve 14, slurry outlet pipe 15; mud return pipeline 2, annular pipe 21, connecting pipe 23, return branch pipe assembly 24, branch pipe 241, injection hole 242, elbow 243, plug 26; cleaning pipeline 3, water pipe 31, flushing pump 32, check valve 33, flow meter 35, electric gate valve 34, mud pool 4, public pipeline 5, electric regulating valve 51. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0022] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0023] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0024] In the embodiments shown in the drawings, the directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when the components are in the positions shown in the drawings. If the description of the positions of the components changes, the directions also change accordingly.

[0025] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0027] See also Figure 1 , and combined with Figure 2 and Figure 3 As shown, a mud pool water replenishment and sedimentation prevention device of the utility model comprises a cleaning pipeline 3, a mud output pipeline 1 and a mud return pipeline 2, wherein one end of the mud output pipeline 1 is connected to a slurry inlet pipe 10, the inlet of the slurry inlet pipe 10 is arranged in the mud pool 4, and a filter 11 is installed to prevent it from being blocked, and the other end of the mud output pipeline 1 is connected to an external check valve 13 through a mud pump 12; the mud return pipeline 2 comprises an annular pipe 21 annularly arranged in the mud pool 4, and one end of the annular pipe 21 is externally connected to a female pipe plug 2 6, and the other end thereof is connected to the cleaning pipeline 3, the cleaning pipeline 3 includes a flushing pump 32 and a water pipe 31 for external circulating water, the water pipe 31 is externally connected to an electric valve through the flushing pump 32, the annular pipe 21 is connected to the water pipe 31 outside the electric valve, and the slurry inlet pipe 10 is connected to the water pipe 31 outside the electric valve through a common pipeline 5 with an electric regulating valve 51, wherein a check valve 33 and a flow meter 35 are arranged between the flushing pump 32 and the electric valve, and a check valve 13 is arranged on the pipeline between the check valve 13 and the mud use point.

[0028] Please continue reading Figure 1 As shown, one end of the annular pipe 21 of the utility model is connected to the common pipeline 5, and the other end thereof is connected to a plug 26, and the annular pipe 21 is arranged in a ring along the inner diameter of the mud pool 4, and the annular pipes 21 are connected through a connecting pipe 23, and a return branch pipe assembly 24 is arranged on the connecting pipe 23 and the annular pipe 21 at intervals. Specifically, the return branch pipe assembly 24 includes a branch pipe 241 connected to the connecting pipe 23, and a spray hole 242 is arranged on the branch pipe 241.

[0029] During normal operation, the electric control valve 14 is opened, the electric regulating valve 51 is closed, and the mud pump 12 is started to transport the mud to the mud use point.

[0030] After the mud conveying system is shut down, the mud return pipeline 2 operates intermittently according to the shutdown duration, temperature, weather, mud characteristics, etc. The electric control valve 14 and the electric gate valve 34 are closed, the electric regulating valve 51 is opened, the mud pump 12 is started, and the mud is re-injected into the mud pool 4 through the return branch pipe assembly 24 with a special structure, which plays the role of stirring, homogenizing and preventing sedimentation.

[0031] After the mud return pipeline 2 is shut down, the cleaning pipeline 3 is started for a short time, the electric control valve 14 and the electric regulating valve 51 are closed, the electric gate valve 34 is opened, and the flushing water pump is started to pressurize the circulating water to flush the mud return pipeline 2 to prevent mud from being deposited in the mud return pipeline 2.

[0032] When the mud has a large water loss and needs to be replenished, the cleaning pipeline 3 is started to realize multi-point uniform water replenishment through the mud return pipeline 2 to prevent the mud from being stratified due to excessive local water replenishment. A flow meter 35 is set on the water outlet pipe 31 to realize accurate measurement of the water replenishment amount.

[0033] Furthermore, in the utility model, the angle between adjacent injection holes 242 at the same height is 45 degrees, and the injection holes 242 are arranged at intervals along the height of the branch pipe 241. The return branch pipe assembly 24 on the connecting pipe 23 also includes an elbow 243, which is installed at the free end of the branch pipe 241.

[0034] The utility model discloses a mud pool water replenishment and sedimentation prevention device, which transforms a conventional mud conveying system, arranges a cleaning pipeline 3 and a mud return pipeline 2, and is connected with an annular pipe 21, a slurry inlet pipe 10 and a common pipeline 5 through a water pipe 31 of the flushing pipeline. The mud return pipeline 2 can be operated intermittently according to factors such as the shutdown time, temperature, weather and mud characteristics by controlling the opening and closing of the valve, the electric control valve 14 and the electric gate valve 34 are closed, the electric regulating valve 51 is opened, the mud pump 12 is started, and the mud is re-injected into the mud pool 4 through a return branch pipe assembly 24 with a special structure, so as to play the role of stirring, homogenizing and sedimentation prevention.

[0035] Finally, the method of this application is only a preferred implementation scheme and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A mud pool water replenishment and sedimentation prevention device, characterized in that: It includes a cleaning pipeline, a mud output pipeline and a mud return pipeline, one end of the mud output pipeline is connected to a slurry inlet pipe, and the other end thereof is connected to an external check valve through a mud pump; the mud return pipeline includes an annular pipe arranged in an annular shape in the mud pool, one end of the annular pipe is externally connected to a female pipe plug, and the other end thereof is connected to the cleaning pipeline; the cleaning pipeline includes a flushing pump and a water pipe externally connected to circulating water, the water pipe is externally connected to an electric valve through the flushing pump, the annular pipe is connected to a water pipe outside the electric valve, and the slurry inlet pipe is connected to a water pipe outside the electric valve through a common pipeline with an electric regulating valve.

2. A mud pool water replenishment and sedimentation prevention device as claimed in claim 1, characterized in that: The annular tubes are connected to each other through a connecting tube, and a reflux branch pipe assembly is arranged on the connecting tube and the annular tube at intervals.

3. A mud pool water replenishment and sedimentation prevention device as claimed in claim 2, characterized in that: The reflux branch pipe assembly comprises a branch pipe communicated with the connecting pipe, and the branch pipe is provided with a spray hole.

4. A mud pool water replenishment and sedimentation prevention device as claimed in claim 3, characterized in that: The included angle between the adjacent injection holes at the same height is 45 degrees, and the injection holes are arranged at intervals along the height of the branch pipe.

5. A mud pool water replenishment and sedimentation prevention device as claimed in claim 3, characterized in that: The return branch pipe assembly on the connecting pipe also includes an elbow, which is installed at the free end of the branch pipe.

6. A mud pool water replenishment and sedimentation prevention device as claimed in claim 1, characterized in that: A check valve and a flow meter are arranged between the flushing pump and the electric valve, an electric control valve is arranged on the pipeline between the check valve and the mud use point, and an electric gate valve is connected to the output end pipeline of the flow meter.

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