CN117067396A - Cement paste preparation device - Google Patents
Cement paste preparation device Download PDFInfo
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- CN117067396A CN117067396A CN202311111798.2A CN202311111798A CN117067396A CN 117067396 A CN117067396 A CN 117067396A CN 202311111798 A CN202311111798 A CN 202311111798A CN 117067396 A CN117067396 A CN 117067396A
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- 239000004568 cement Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 66
- 239000002002 slurry Substances 0.000 claims abstract description 62
- 238000012806 monitoring device Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000001276 controlling effect Effects 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 230000000087 stabilizing effect Effects 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 18
- 238000007667 floating Methods 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
- B28C7/126—Supply means, e.g. nozzles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The application relates to a cement paste preparation device, which comprises: the mixing unit is connected with an ash pipeline, an opening adjusting valve is arranged on the ash pipeline, and the mixing unit is connected with a water supply system; the slurry tank is used for storing the slurry mixed by the mixing unit, and is connected with a slurry density monitoring device which is used for monitoring slurry density information of the slurry in the slurry tank; the opening monitoring device is connected with the opening regulating valve to monitor the opening information of the opening regulating valve; and the control device is connected with the slurry density monitoring device, the opening monitoring device and the opening regulating valve and is used for controlling the opening of the opening regulating valve according to the slurry density information and the opening information of the opening regulating valve. The cement paste preparation device has higher automation and intelligent level, reduces the influence of human factors on the quality of the prepared cement paste, and ensures the quality of the cement paste.
Description
Technical Field
The application belongs to the technical field of petroleum mechanical equipment, and particularly relates to a cement paste preparation device.
Background
The petrochemical industry is taken as a post industry in China, has long production line and wide involved range, and is continuously developed along with the increase of social economy. The well cementation is one of important links in the well construction process of the oil and gas well, and is a hidden underground operation project which has wide involved area, high risk, high operation requirement and strong technical performance. The quality of well cementation directly influences whether the well can continue drilling, smooth production, the service life of an oil and gas well and the recovery ratio of an oil and gas reservoir.
At present, cement slurry for well cementation is supplied by an ash tank, the stability and reliability of the supplied ash are ensured by a constant pressure tank, and when a certain air pressure is reached, dry ash entering the constant pressure tank from the ash tank is conveyed to an opening regulating valve and enters the slurry mixing tank with clean water for slurry mixing. However, the existing cement slurry mixing process has the problems of lower automation and intelligent degree of ash supply, difficult control of cement slurry preparation precision and the like, and the main reasons are that the ash supply amount needs to be manually adjusted by measuring the cement slurry density when cement slurry is mixed, the density precision of the cement slurry prepared by a method of manually adjusting the ash supply amount is poor, the quality of the cement slurry cannot be ensured, and the well control risk is increased while the labor cost is increased.
Disclosure of Invention
In order to solve all or part of the problems, the application aims to provide a cement slurry preparation device, wherein a control device can control the opening of an opening regulating valve according to slurry density information and the opening information of the opening regulating valve so as to realize the adjustment of the ash supply amount, so that the automation and the intelligent degree of the cement slurry preparation process are improved, and the density precision of the obtained cement slurry is better.
According to an aspect of the present application, there is provided an apparatus for preparing cement paste, comprising:
the mixing unit is connected with an ash pipeline, an opening adjusting valve is arranged on the ash pipeline, and the mixing unit is connected with a water supply system;
the slurry tank is used for storing the slurry mixed by the mixing unit, and is connected with a slurry density monitoring device which is used for monitoring slurry density information of the slurry in the slurry tank;
the opening monitoring device is connected with the opening regulating valve to monitor opening information of the opening regulating valve;
and the control device is connected with the mud density monitoring device, the opening monitoring device and the opening regulating valve and is used for controlling the opening of the opening regulating valve according to the mud density information and the opening information of the opening regulating valve.
Further, the opening regulating valve is a hydraulic control valve, the opening regulating valve is connected with an oil cylinder, the oil cylinder is connected with an electromagnetic valve, the control device is connected with the electromagnetic valve, and the control device controls the opening of the opening regulating valve by controlling the electromagnetic valve.
Further, the device also comprises a constant pressure tank, wherein the constant pressure tank is connected with an ash conveying pipeline, a first proportional valve is arranged on the ash conveying pipeline, the constant pressure tank is connected with a material level information monitoring device, and the material level information monitoring device is used for monitoring the material level information of dry ash in the constant pressure tank; the first proportional valve and the material level information monitoring device are connected with the control device;
the constant pressure tank is connected with the mixing unit through the ash pipeline, a second proportional valve is further arranged on the ash pipeline, the second proportional valve is arranged between the constant pressure tank and the opening regulating valve, and the second proportional valve is connected with the control device;
the opening monitoring device is respectively connected with the first proportional valve and the second proportional valve and is also used for monitoring first opening information of the first proportional valve and second opening information of the second proportional valve;
the control device is used for controlling the opening of the first proportional valve and the second proportional valve according to the material level information, the first opening information and the second opening information; and controlling the opening of the first proportional valve, the second proportional valve and the opening regulating valve according to the mud density information, the first opening information, the second opening information and the opening information of the opening regulating valve.
Further, the ash conveying pipeline is connected with an ash tank, and the ash tank is arranged on the weighing base.
Further, the device also comprises a gas supply device, wherein gas generated by the gas supply device enters the constant pressure tank and the ash conveying pipeline through a first pressure regulating valve; the constant pressure tank is connected with an exhaust gas discharge pipeline, a pressure stabilizing valve is arranged on the exhaust gas discharge pipeline and is a pressure opening valve, and gas generated by the gas supply device acts on the pressure stabilizing valve through a second pressure regulating valve so that the pressure stabilizing valve has an opening pressure.
Further, a floating bed is arranged at the lower part of the constant pressure tank, and gas generated by the gas supply device acts on the pressure stabilizing valve through a third pressure regulating valve and a second pressure regulating valve, and enters the floating bed of the constant pressure tank through the third pressure regulating valve.
Further, a first butterfly valve is arranged on the exhaust gas discharge pipeline between the pressure stabilizing valve and the constant pressure tank, and a quick discharge valve is connected to the outlet of the first butterfly valve.
Further, the mud density monitoring device comprises a mud circulating pump and a densimeter, wherein the mud circulating pump is connected with the mud tank through a bypass pipeline, the mud circulating pump is connected with an inlet of the densimeter, an outlet of the densimeter is connected with the mixing unit through a pipeline, and the densimeter is connected with the control device.
Further, a radar liquid level gauge is arranged in the mud tank.
Further, a second butterfly valve is further arranged on the ash conveying pipeline, and a third butterfly valve is further arranged on the ash path pipeline; the material level information monitoring device is a radar material level gauge, and the mixing unit is a mixer.
According to the technical scheme, the preparation device of the cement paste provided by the application has the following beneficial effects:
on the one hand, the control device can control the opening of the opening regulating valve according to the slurry density information and the opening information of the opening regulating valve so as to realize the regulation of the ash supply amount, thereby controlling the flow of the dry ash injected into the mixing unit; the cement paste with good density precision can be obtained by mixing dry ash with proper flow and water with rated flow provided by a water supply system in a mixing unit;
the cement paste preparation device has higher automation and intelligent level, reduces the influence of human factors on the quality of the prepared cement paste, and ensures the quality of the cement paste.
Drawings
FIG. 1 is a schematic view of a cement slurry preparation device according to an embodiment of the present application;
FIG. 2 is a schematic view of a surge tank portion according to an embodiment of the present application;
FIG. 3 is a schematic illustration of a mud tank and mixing unit section according to an embodiment of the present application;
the reference numerals in the drawings are: the control device 1, the weighing base 2, the ash tank 3, the first proportional valve 4, the radar level gauge 5, the constant pressure tank 6, the second proportional valve 7, the slurry tank 8, the third pressure regulating valve 9, the gas supply device 10, the first pressure regulating valve 11, the ash conveying pipeline 12, the second butterfly valve 13, the ash pipeline 14, the floating bed 15, the third butterfly valve 16, the quick-discharge valve 17, the first butterfly valve 18, the pressure stabilizing valve 19, the second pressure regulating valve 20, the water supply system 21, the electromagnetic valve 22, the oil cylinder 23, the opening regulating valve 24, the slurry circulating pump 25, the densimeter 26, the mixer 27 and the radar level gauge 28.
Detailed Description
For a better understanding of the objects, structures and functions of the present application, a cement slurry preparing apparatus according to the present application will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, there is shown a cement paste preparing apparatus according to an embodiment of the present application, including a mud tank 8 and a mixing unit for mixing dry ash and water to obtain mud, the mud tank 8 being for storing the mud prepared by the mixing unit.
Specifically, the mixing unit is connected with an ash pipeline 14, an opening adjusting valve 24 is arranged on the ash pipeline 14, and the mixing unit is connected with a water supply system 21; the ash line 14 is used for flowing dry ash, the dry ash flows into the mixing unit through the ash line 14, and the opening regulating valve 24 is used for regulating the flow of the dry ash flowing into the mixing unit; the water supply system 21 is used for supplying water to the mixing unit, and in practice, the water supply unit may be configured as a water pump that pumps water into the mixing unit at a rated displacement.
The slurry mixing tank is connected with a slurry density monitoring device which is used for monitoring slurry density information of slurry in the slurry tank 8.
Also comprises an opening degree monitoring device and a control device 1, wherein the opening degree monitoring device is connected with the opening degree regulating valve 24 to monitor the opening degree information of the opening degree regulating valve 24; the control device 1 is connected to the mud density monitoring device, the opening degree monitoring device, and the opening degree adjusting valve 24, and the control device 1 is configured to control the opening degree of the opening degree adjusting valve 24 based on mud density information and opening degree information of the opening degree adjusting valve 24.
In this embodiment, the control device 1 can control the opening of the opening adjusting valve 24 according to the mud density information and the opening information of the opening adjusting valve 24 to realize the adjustment of the ash supply amount, thereby controlling the flow rate of the dry ash injected into the mixing unit; the cement paste with good density can be obtained by mixing the dry ash with proper flow and the rated flow of water provided by the water supply system 21 in the mixing unit; the cement paste preparation device has higher automation and intelligent level, reduces the influence of human factors on the quality of the prepared cement paste, reduces the labor cost and ensures the quality of the cement paste.
In one embodiment, as shown in fig. 3, the opening adjusting valve 24 is a hydraulic control valve, the opening adjusting valve 24 is connected with an oil cylinder 23, the oil cylinder 23 is connected with an electromagnetic valve 22, the control device 1 is connected with the electromagnetic valve 22, and the control device 1 controls the opening of the opening adjusting valve 24 by controlling the electromagnetic valve 22.
In this embodiment, the opening adjusting valve 24 is a hydraulic control valve, and the hydraulic control valve has the advantage of relatively precise valve opening adjustment, so that precise control of the dry ash input to the mixing unit can be realized. Secondly, since the opening regulating valve 24 is a hydraulic control valve, the control device 1 cannot directly control the opening regulating valve 24, and for this purpose, the oil cylinder 23 and the electromagnetic valve 22 are provided, the electromagnetic valve 22 is connected with the control device 1 to receive control information of the control device 1, and the electromagnetic valve 22 controls the oil cylinder 23 according to the received control information, so that the opening regulating valve 24 is controlled by the oil cylinder 23.
In an embodiment, as shown in fig. 2, the device further comprises a constant pressure tank 6, the constant pressure tank 6 is connected with the mixing unit through an ash pipeline 14, the constant pressure tank 6 is connected with an ash conveying pipeline 12, the constant pressure tank 6 divides the pipeline for conveying dry ash into the ash conveying pipeline 12 and the ash pipeline 14, the constant pressure tank 6 achieves the purpose of temporarily storing dry ash, the conveying distance of the dry ash is shortened, and the problem that the dry ash is accumulated somewhere in a long-distance transportation process is avoided.
The ash conveying pipeline 12 is provided with a first proportional valve 4, the constant pressure tank 6 is connected with a material level information monitoring device, and the material level information monitoring device is used for monitoring the material level information of dry ash in the constant pressure tank 6; the first proportional valve 4 and the level information monitoring means are both connected to the control device 1 in order to control the opening of the first proportional valve 4 by the control device 1 and in order for the control device 1 to receive the level information of the level information monitoring means.
The ash pipeline 14 is also provided with a second proportional valve 7, the second proportional valve 7 is arranged between the constant pressure tank 6 and the opening regulating valve 24, for example, the opening regulating valve 24 is arranged close to the mixing unit when the second proportional valve 7 is arranged in the middle of the ash pipeline 14 or close to the constant pressure tank 6; the second proportional valve 7 is connected to the control device 1 so that the opening degree of the second proportional valve 7 is controlled by the control device 1.
The opening degree monitoring device is respectively connected with the first proportional valve 4 and the second proportional valve 7, and is also used for monitoring first opening degree information of the first proportional valve 4 and second opening degree information of the second proportional valve 7.
The control device 1 is used for controlling the opening degrees of the first proportional valve 4 and the second proportional valve 7 according to the material level information, the first opening degree information and the second opening degree information; and for controlling the opening of the first proportional valve 4, the second proportional valve 7 and the opening regulating valve 24 based on the mud density information, the first opening information, the second opening information and the opening information of the opening regulating valve 24.
In the present embodiment, the control device 1 is capable of controlling the opening degrees of the first proportional valve 4 and the second proportional valve 7 according to the level information, the first opening degree information, and the second opening degree information of the constant pressure tank 6 so as to keep the dry ash in the constant pressure tank 6 at an appropriate level; the control device 1 can also control the opening of the first proportional valve 4, the second proportional valve 7 and the opening regulating valve 24 according to the mud density information, the first opening information, the second opening information and the opening information of the opening regulating valve 24, so as to regulate the flow rate of the dry ash entering the mixing unit, and obtain the cement slurry with the required density.
In one embodiment, ash conveying line 12 is connected to ash tank 3, ash tank 3 being disposed on weighing base 2. In this embodiment, the ash tank 3 is used for storing dry ash, the stored dry ash enters the constant pressure tank 6 through the ash conveying pipeline 12 for temporary storage, and the dry ash in the constant pressure tank 6 enters the mixing unit through the ash path pipeline 14 for mixing with water. The ash tank 3 is arranged on the weighing base 2, so that the dry ash allowance in the ash tank 3 can be known in time, and the dry ash can be conveniently replenished in time after being reduced.
In one embodiment, the device also comprises a gas supply device 10, and gas generated by the gas supply device 10 enters the constant pressure tank 6 and the ash conveying pipeline 12 through the first pressure regulating valve 11; the constant pressure tank 6 is connected with an exhaust gas discharge pipe, a pressure stabilizing valve 19 is arranged on the exhaust gas discharge pipe, the pressure stabilizing valve 19 is a pressure opening valve, and gas generated by the gas supply device 10 acts on the pressure stabilizing valve 19 through a second pressure regulating valve 20 so that the pressure stabilizing valve 19 has an opening pressure.
In this embodiment, the air supply device 10 is configured to make the dry ash in the constant pressure tank 6 have a suitable pressure, and the corresponding constant pressure tank 6 is further connected with a waste discharge pipeline, and the exhaust gas discharge pipeline is configured to discharge more than the air in the constant pressure tank 6.
Specifically, the air supply device 10 may be an air pump or an air generator, etc., the air generated by the air supply device 10 enters the constant pressure tank 6 and the ash conveying pipeline 12 through the first pressure regulating valve 11, the first pressure regulating valve 11 is used for regulating the pressure of the air, the air enters the ash conveying pipeline 12 and is used for blowing the dry ash in the ash conveying pipeline 12 into the constant pressure tank 6, and the air enters the constant pressure tank 6 and is used for making the dry ash in the constant pressure tank 6 have a proper pressure.
The air supply device 10 also acts on the pressure stabilizing valve 19 through the second pressure regulating valve 20, the pressure stabilizing valve 19 is a pressure opening valve, the air supply device 10 acts on the pressure stabilizing valve 19 through the second pressure regulating valve 20, so that the pressure stabilizing valve 19 has an opening pressure, when the air pressure in the constant pressure tank 6 is greater than the opening pressure of the pressure stabilizing valve 19, the pressure stabilizing valve 19 is opened, the air in the constant pressure tank 6 is discharged outwards, and the pressure of the constant pressure tank 6 is relieved; when the pressure in the constant pressure tank 6 is released to a pressure smaller than the opening pressure of the pressure stabilizing valve 19, the pressure stabilizing valve 19 is restored to the closed state again.
The dry ash in the constant pressure tank 6 is provided with proper pressure through the arrangement of the air supply device 10, so that the dry ash is in an emulsified state, and the air supply device 10 acts on the pressure stabilizing valve 19, so that the pressure stabilizing valve 19 has an opening pressure, and the pressure can be conveniently released through the pressure stabilizing valve 19 in time when the pressure in the constant pressure tank 6 is large, thereby ensuring the normal operation of the preparation device.
In one embodiment, the floating bed 15 is disposed at the lower part of the constant pressure tank 6, and the gas generated by the gas supply device 10 acts on the pressure stabilizing valve 19 through the third pressure regulating valve 9 and the second pressure regulating valve 20, and enters the floating bed 15 of the constant pressure tank 6 through the third pressure regulating valve 9. The floating bed 15 is used in this embodiment to float and pressurize the dry ash.
In an embodiment, a first butterfly valve 18 is arranged on the exhaust gas discharge pipeline between the pressure stabilizing valve 19 and the constant pressure tank 6, and a quick discharge valve 17 is connected to the outlet of the first butterfly valve 18.
The first butterfly valve 18 is configured to connect with the quick-release valve 17 to quickly release the pressure in the constant-pressure tank 6 under special conditions, and in specific implementation, the first butterfly valve 18 is configured as a normally open valve, and the quick-release valve 17 is configured as a normally closed valve.
In one embodiment, the mud density monitoring device comprises a mud circulation pump 25 and a densitometer 26, wherein the mud circulation pump 25 is connected with the mud tank 8 through a bypass pipeline, the mud circulation pump 25 is connected with an inlet of the densitometer 26, an outlet of the densitometer 26 is connected with the mixing unit through a pipeline, and the densitometer 26 is connected with the control device 1.
In this embodiment, the densimeter 26 is used for monitoring the density of the cement slurry, the densimeter 26 is connected with the control device 1 so that the control device 1 can receive the density information of the cement slurry obtained by the densimeter 26, the slurry circulating pump 25 is used for providing power for the flow of the cement slurry, and the outlet of the densimeter 26 is connected with the mixing unit so that the part of the cement slurry passing through the densimeter 26 can be fed into the slurry through the mixing unit for reuse.
In one embodiment, a radar level gauge 28 is also provided in the mud tank 8. The provision of the radar level gauge 28 facilitates monitoring of the level information in the mud tank 8 for timely production when there is less cement in the mud tank 8.
In one embodiment, the ash conveying pipeline 12 is also provided with a second butterfly valve 13, and the ash path pipeline 14 is also provided with a third butterfly valve 16; the level information monitoring device is a radar level gauge 5 and the mixing unit is a mixer 27. In specific implementation, for example, the second butterfly valve 13 and the third butterfly valve 16 are set to be normally open valves so as to enable the preparation process of the cement slurry to be smoothly carried out, and when the machine is required to be stopped, the second butterfly valve 13 and the third butterfly valve 16 are closed.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
Furthermore, the terms "a," "an," "the" and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. A cement paste preparation device, characterized by comprising:
the mixing unit is connected with an ash pipeline, an opening adjusting valve is arranged on the ash pipeline, and the mixing unit is connected with a water supply system;
the slurry tank is used for storing the slurry mixed by the mixing unit, and is connected with a slurry density monitoring device which is used for monitoring slurry density information of the slurry in the slurry tank;
the opening monitoring device is connected with the opening regulating valve to monitor opening information of the opening regulating valve;
and the control device is connected with the mud density monitoring device, the opening monitoring device and the opening regulating valve and is used for controlling the opening of the opening regulating valve according to the mud density information and the opening information of the opening regulating valve.
2. The apparatus for preparing cement slurry according to claim 1, wherein the opening degree adjusting valve is a hydraulic control valve, the opening degree adjusting valve is connected with an oil cylinder, the oil cylinder is connected with an electromagnetic valve, the control device is connected with the electromagnetic valve, and the control device controls the opening degree of the opening degree adjusting valve by controlling the electromagnetic valve.
3. The cement paste preparation device according to claim 1, further comprising a constant pressure tank, wherein the constant pressure tank is connected with an ash conveying pipeline, a first proportional valve is arranged on the ash conveying pipeline, the constant pressure tank is connected with a material level information monitoring device, and the material level information monitoring device is used for monitoring material level information of dry ash in the constant pressure tank; the first proportional valve and the material level information monitoring device are connected with the control device;
the constant pressure tank is connected with the mixing unit through the ash pipeline, a second proportional valve is further arranged on the ash pipeline, the second proportional valve is arranged between the constant pressure tank and the opening regulating valve, and the second proportional valve is connected with the control device;
the opening monitoring device is respectively connected with the first proportional valve and the second proportional valve and is also used for monitoring first opening information of the first proportional valve and second opening information of the second proportional valve;
the control device is used for controlling the opening of the first proportional valve and the second proportional valve according to the material level information, the first opening information and the second opening information; and controlling the opening of the first proportional valve, the second proportional valve and the opening regulating valve according to the mud density information, the first opening information, the second opening information and the opening information of the opening regulating valve.
4. A device for preparing cement paste according to claim 3, wherein the ash conveying pipeline is connected with an ash tank, and the ash tank is arranged on the weighing base.
5. A cement slurry preparation device according to claim 3, further comprising a gas supply device, wherein gas generated by the gas supply device enters the constant pressure tank and the ash conveying pipeline through a first pressure regulating valve; the constant pressure tank is connected with an exhaust gas discharge pipeline, a pressure stabilizing valve is arranged on the exhaust gas discharge pipeline and is a pressure opening valve, and gas generated by the gas supply device acts on the pressure stabilizing valve through a second pressure regulating valve so that the pressure stabilizing valve has an opening pressure.
6. The apparatus for preparing cement slurry according to claim 5, wherein a floating bed is provided at the lower portion of the constant pressure tank, and the gas generated by the gas supply device acts on the pressure stabilizing valve through a third pressure regulating valve and a second pressure regulating valve, and enters the floating bed of the constant pressure tank through the third pressure regulating valve.
7. The cement slurry preparation device according to claim 5, wherein a first butterfly valve is arranged on the exhaust gas discharge pipeline between the pressure stabilizing valve and the constant pressure tank, and a quick discharge valve is connected to an outlet of the first butterfly valve.
8. The cement slurry preparation device according to claim 1, wherein the slurry density monitoring device comprises a slurry circulation pump and a densitometer, the slurry circulation pump is connected with the slurry tank through a bypass pipeline, the slurry circulation pump is connected with an inlet of the densitometer, an outlet of the densitometer is connected with the mixing unit through a pipeline, and the densitometer is connected with the control device.
9. A device for preparing cement paste according to any of claims 1-8, wherein a radar level gauge is further provided in the mud tank.
10. The cement slurry preparation device according to claim 9, wherein the ash conveying pipeline is further provided with a second butterfly valve, and the ash pipeline is further provided with a third butterfly valve; the material level information monitoring device is a radar material level gauge, and the mixing unit is a mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311111798.2A CN117067396A (en) | 2023-08-30 | 2023-08-30 | Cement paste preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311111798.2A CN117067396A (en) | 2023-08-30 | 2023-08-30 | Cement paste preparation device |
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| Publication Number | Publication Date |
|---|---|
| CN117067396A true CN117067396A (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311111798.2A Pending CN117067396A (en) | 2023-08-30 | 2023-08-30 | Cement paste preparation device |
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| CN (1) | CN117067396A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117819216A (en) * | 2024-03-06 | 2024-04-05 | 中海油田服务股份有限公司 | Ash supply system for full-automatic well cementation operation and control method thereof |
| CN117819216B (en) * | 2024-03-06 | 2024-06-11 | 中海油田服务股份有限公司 | Ash supply system for full-automatic well cementation operation and control method thereof |
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2023
- 2023-08-30 CN CN202311111798.2A patent/CN117067396A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117819216A (en) * | 2024-03-06 | 2024-04-05 | 中海油田服务股份有限公司 | Ash supply system for full-automatic well cementation operation and control method thereof |
| CN117819216B (en) * | 2024-03-06 | 2024-06-11 | 中海油田服务股份有限公司 | Ash supply system for full-automatic well cementation operation and control method thereof |
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