CN211415749U

CN211415749U - Full-automatic mud performance monitoring adjustment device

Info

Publication number: CN211415749U
Application number: CN201921809383.1U
Authority: CN
Inventors: 吴克雄; 李顺凯; 沈尔卜; 嵇建雷; 吴琦; 吕鑫磊; 田兴旺; 陆鹏超
Original assignee: Cccc Shec Wuhan Port New Materials Co ltd
Current assignee: Cccc Shec Wuhan Port New Materials Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-09-04
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a full-automatic mud performance monitoring adjustment equipment, a serial communication port, include the mud pit and set up in storage silo and the reservoir above the mud pit, storage silo and reservoir are equipped with first flowmeter, second flowmeter respectively in the department of intercommunication with the mud pit, mud bottom of the pool portion is equipped with the agitator pump, mud inner wall is equipped with a plurality of survey mud viscosity or the specific weight's detector along the direction of height interval. The utility model discloses a plurality of detectors can know the performance parameter of not co-altitude department mud, when monitoring the detector and have great deviation with the predetermined value, adjust the volume of advancing of supplementary dry powder or water through the automatically controlled feed valve of first automatically controlled feed valve or second, make mud reach the settlement performance.

Description

Full-automatic mud performance monitoring adjustment device

Technical Field

The utility model relates to a construction field specifically indicates a full-automatic mud performance monitoring adjustment equipment.

Background

With the continuous and steady development of the social economy and urbanization process of China, the infrastructure process is increasingly accelerated, urban sewage pipes, urban subways, particularly large river crossing tunnels and sea-crossing bridge projects begin to be constructed on a large scale, and the large-diameter slurry shield tunnel construction method and the drilled piles are more and more widely applied.

The existing shield slurry is prepared by mixing dry powder (including cement, fly ash, mineral powder and the like) with water. When raw materials fluctuate to a certain extent, slurry parameters fluctuate correspondingly, the stability of the shield excavation face is reduced due to large fluctuation of the slurry parameters, for drilled piles, the problem that the hole wall collapses, the sediment thickness is large, the pile is broken and the like can be caused, and therefore the quality of the slurry directly influences the quality of the engineering.

At present, the control of the field slurry quality in engineering has great negligence and loopholes, the engineering generally adopts a mode of manually measuring the parameters of the slurry every day, the monitoring frequency is low, and if the parameters of the slurry are changed greatly during the period, the engineering hidden danger can be brought; in addition, when a measurer finds that the mud parameter fluctuation is large, the measurer does not know how to adjust the mud parameter, needs to consult related technicians, obtains related feedback and then can adjust the mud, the process delays time, meanwhile, the suggestion of the technician may properly adjust the mud parameter, but cannot achieve very high accuracy, particularly in cross-sea bridge or cross-sea tunnel engineering, because the cross-sea project is difficult to obtain fresh water resources, the seawater is generally adopted to prepare the mud, and how to verify the influence rule of components in the seawater on the mud parameter needs to be tested, the difficulty is increased for adjusting the mud parameter, and the series of reasons may bring risks to the engineering.

The Chinese patent application with publication number CN 107953450A discloses an automatic on-line monitoring and adjusting device for the solid content of wet concrete recovered muddy water, which utilizes a weighing unit to determine the concentration of the recovered muddy water, and determines whether to convey water from a clean water tank according to the concentration so as to control the concentration of the mud to be below 5 percent. However, the device is not suitable for monitoring and adjusting shield slurry prepared by dry powder and water, because: 1. no dry powder feeding device is provided, and fresh slurry cannot be prepared with water; 2. only one detection water pump is arranged in the middle, and the overall performance of the slurry is difficult to reflect when the mass is large; 3. the dry powder cannot be supplemented only by adjusting and supplementing clear water, and the dry powder needs to be supplemented when the concentration of the shield slurry is low.

Therefore, a fully-automatic slurry performance monitoring and adjusting device which is simple in structure, can accurately monitor the overall performance of slurry and can adjust and supplement dry powder and water is needed to be developed.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and providing a full-automatic slurry performance monitoring and adjusting device which has simple structure and can accurately monitor the overall performance of slurry, dry powder and water and can be adjusted and supplemented.

The technical scheme of the utility model is that:

the utility model provides a full-automatic mud performance monitoring adjustment equipment, its characterized in that includes the mud pit and sets up in storage silo and the reservoir tank of mud pit top, storage silo and reservoir tank are equipped with first flowmeter, second flowmeter respectively in the department of communicateing with the mud pit, mud bottom of the pool portion is equipped with the agitator pump, mud inner wall is equipped with a plurality of survey mud viscosity or the detector of proportion along the direction of height interval.

Preferably, the storage silo lower extreme is equipped with the first inlet pipe with mud pond upper end intercommunication, first inlet pipe just the slope is in the mud pond downwards just first flowmeter sets up on first inlet pipe.

Further, the upper end of the storage bin is provided with a first storage valve, and the first feeding pipe is further provided with a first electric control feeding valve.

Preferably, the lower end of the water storage bin is provided with a second water inlet pipe communicated with the upper end of the mud pit, and the second flowmeter is arranged on the second water inlet pipe.

Furthermore, a second water storage valve is arranged at the upper end of the water storage bin, and a second electric control water inlet valve is further arranged on the second water inlet pipe.

Preferably, the bottoms of the storage bin and the water storage bin are both conical shapes which shrink downwards and inwards.

Preferably, the detectors are viscometers and three detectors are provided.

The utility model has the advantages that:

1. the storage bin and the water storage bin are located above the mud pit, water is fed by gravity, the feeding is fast and convenient, and the feeding state can be monitored by the first flowmeter and the second flowmeter.

2. The mud pool is internally provided with a stirring pump which can uniformly stir water and dry powder, a plurality of detectors can obtain performance parameters of the mud at different heights, and when the detectors are monitored to have larger deviation from a preset value, the dry powder or water inlet amount is supplementarily adjusted through a first electric control feed valve or a second electric control water inlet valve, so that the mud reaches the set performance.

3. Simple structure, convenient operation use manpower sparingly, have improved the efficiency of construction greatly.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

Wherein: 1-a mud pit 2-a storage bin 3-a water storage bin 4-a first flowmeter 5-a second flowmeter 6-a stirring pump 7-a detector 8-a first feeding pipe 9-a first storage valve 10-a first electric control feeding valve 11-a second feeding pipe 12-a second water storage valve 13-a second electric control water inlet valve 14-a discharge pipe.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1, the utility model provides a pair of full-automatic mud performance monitoring adjusting device, including mud pit 1 and set up in storage silo 2 and the reservoir 3 of mud pit top, storage silo 2 and reservoir 3 are equipped with first flowmeter 4, second flowmeter 5 respectively in the department of intercommunication with mud pit 1, and 1 bottom in mud pit is equipped with agitator pump 6, and 1 inner wall in mud pit is equipped with a plurality of survey mud viscosity or the detector 7 of proportion along the direction of height interval. The bottom of the mud pit 1 is provided with a discharge pipe 14. The storage bin 2 stores dry powder, and the water stored in the water storage bin 3 is clear water or seawater.

The lower extreme of storage silo 2 is equipped with the first inlet pipe 8 with mud pit 1 upper end intercommunication, and first inlet pipe 8 is down to slope and first flowmeter 4 sets up on first inlet pipe 8 in mud pit 1. The upper end of the storage bin 2 is provided with a first storage valve 9, and the first feeding pipe 8 is also provided with a first electric control feeding valve 10.

The lower end of the water storage bin 3 is provided with a second water inlet pipe 11 communicated with the upper end of the mud pit 1, and the second flowmeter 5 is arranged on the second water inlet pipe 11. The upper end of the water storage bin 3 is provided with a second water storage valve 12, and the second water inlet pipe 11 is also provided with a second electric control water inlet valve 13.

The bottoms of the storage bin 2 and the water storage bin 3 are both conical shapes which shrink downwards and inwards. The three detectors 7 are respectively arranged at the upper part, the middle part and the lower part of the mud pit 1. The detector 7 is a viscometer or a densimeter, which is a viscosity agent in this embodiment.

The working principle of the embodiment is as follows:

according to the total amount of the slurry required to be prepared and the viscosity, the amount of the dry powder and the water to be added is calculated through experiments, and the stirring power of the stirring pump 6 and the allowable viscosity range of the slurry at each viscometer under the power are set.

The method comprises the steps of opening a first electric control feed valve 10 and a second electric control feed valve 13 to convey dry powder and water into a slurry pool 1, monitoring the conveying speed and the conveying total amount through a first flowmeter 4 and a second flowmeter 5, closing the first electric control feed valve 10 and the second electric control feed valve 13 when the inflow feed reaches the pre-dosage, respectively measuring the viscosity of the positions by three viscometers under the stirring of a stirring pump 6, adding water or feeding slurry according to the relation between each viscometer and a set range, respectively realizing accurate supplement of the dry powder and the water through the opening of the first electric control feed valve 10 and the second electric control feed valve 13 and the monitoring of the first flowmeter 4 and the second flowmeter 5, and continuously monitoring each viscometer after the supplement is finished until the measured values of all the viscometers are located in the set range of the slurry at the positions. The prepared slurry is discharged from the discharge pipe 14.

When the detector 7 is a specific gravity timer, the total amount of the slurry which is prepared according to the requirement at first and the amount of the pre-added dry powder and water which are obtained by the calculation of the specific gravity test are the same as those of the detector 7, and the description is omitted here.

Claims

1. The utility model provides a full-automatic mud performance monitoring adjustment equipment, its characterized in that includes mud pit (1) and sets up in storage silo (2) and reservoir (3) of mud pit top, storage silo (2) and reservoir (3) are equipped with first flowmeter (4), second flowmeter (5) respectively in the department of communicateing with mud pit (1), mud pit (1) bottom is equipped with agitator pump (6), mud pit (1) inner wall is equipped with a plurality of survey mud viscosity or proportion detector (7) along the direction of height interval.

2. The full-automatic mud performance monitoring and adjusting device according to claim 1, wherein the lower end of the storage bin (2) is provided with a first feeding pipe (8) communicated with the upper end of the mud pit (1), the first feeding pipe (8) is inclined downwards towards the inside of the mud pit (1), and the first flow meter (4) is arranged on the first feeding pipe (8).

3. The full-automatic mud performance monitoring and adjusting device according to claim 2, wherein a first storage valve (9) is arranged at the upper end of the storage bin (2), and a first electrically-controlled feeding valve (10) is further arranged on the first feeding pipe (8).

4. The full-automatic mud performance monitoring and adjusting device according to claim 1, wherein a second water inlet pipe (11) communicated with the upper end of the mud pit (1) is arranged at the lower end of the water storage bin (3), and the second flowmeter (5) is arranged on the second water inlet pipe (11).

5. The full-automatic slurry performance monitoring and adjusting device as claimed in claim 4, wherein a second water storage valve (12) is arranged at the upper end of the water storage bin (3), and a second electrically-controlled water inlet valve (13) is further arranged on the second water inlet pipe (11).

6. The full-automatic mud performance monitoring and adjusting device of claim 1, wherein the bottoms of the storage bin (2) and the water storage bin (3) are both tapered and inwardly contracted.

7. The apparatus for monitoring and adjusting the properties of a slurry according to claim 1, wherein the detectors (7) are viscometers and there are three.