CN110593340A - Anti-sticking wheel mortar injection system and method - Google Patents
Anti-sticking wheel mortar injection system and method Download PDFInfo
- Publication number
- CN110593340A CN110593340A CN201910870785.0A CN201910870785A CN110593340A CN 110593340 A CN110593340 A CN 110593340A CN 201910870785 A CN201910870785 A CN 201910870785A CN 110593340 A CN110593340 A CN 110593340A
- Authority
- CN
- China
- Prior art keywords
- slurry
- working area
- mortar injection
- mortar
- sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- 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
Abstract
The invention discloses a mortar injection system and method for an anti-sticking wheel, wherein the system comprises a concentration sensor and a mortar injection unit; and when the concentration sensor detects that the slurry concentration in the working area is greater than a set threshold value, the mortar injection unit is started, mortar is injected into the working area by the mortar injection unit, the specific gravity of the non-sticky particles is increased, and the slurry concentration in the working area is reduced. The invention increases the proportion of non-viscous particles of slurry at the bottom of the tank, reduces the concentration of slurry at the bottom of the tank, changes the inherent characteristics of slurry in a deep viscous stratum, ensures that the slurry at the bottom of the tank has good flowing characteristics and improves the efficiency of slurry suction and discharge at the bottom of the tank by a slag suction port by a construction method of injecting the slurry into a working area (such as the tank bottom).
Description
Technical Field
The invention belongs to the technical field of underground diaphragm wall construction, and particularly relates to an anti-sticking wheel mortar injection system and method.
Background
The underground continuous wall is a new technology which is widely applied and rapidly developed in underground concealed engineering and foundation construction engineering. The construction of the underground continuous wall in China is applied to the Qingdao Danzi mouth reservoir in 1958 for the first time, and the underground continuous wall mainly plays a role of a diaphragm wall. Later, with the development of technology and the increasing requirements of construction engineering on underground continuous walls, the underground continuous walls have been gradually developed to bear vertical loads or composite loads as part of the stressed structures of engineering main bodies. The double-wheel milling equipment is one of the main equipment for the construction of the existing underground diaphragm wall, and can be used for excavating in geology with different hardness by replacing different types of cutters; under the condition of complex stratum, the construction precision and efficiency are high, and the environmental impact and pollution are small.
The operation construction stratum of the double-wheel slot milling machine is complex and various, however, in the operation construction of the double-wheel slot milling machine on the cemented viscous argillaceous stratum, a large amount of fine viscous argillaceous particles are dissolved in slurry due to the crushing and stirring effects of the milling cutter, so that the mass concentration of the slurry at the slot bottom is higher than that of the slurry at the upper protection wall, and the low-concentration slurry at the upper part is difficult to be mixed and diluted with the slurry at the slot bottom, so that the slurry concentration at the slot bottom is continuously increased, and the slurry flow state at the slot bottom is converted from. The non-Newtonian fluid flow property is poor, the milling cutter operation resistance is increased, the slag suction port cannot suck away massive argillaceous particles in time, and a large number of massive viscous argillaceous particles are adhered to the toothed plate to form an adhesive wheel, so that the problems that the milling groove construction operation efficiency is influenced, the equipment loss is increased and the like are caused.
In order to solve the problem of the sticking wheel in the prior art, the adopted modes comprise a washing method, vibration elimination, installation of a mud scraper and the like.
The invention discloses a flushing device for a milling wheel of a slot milling machine, which is disclosed in the Chinese patent application with the application number of 201610819796.2, and comprises a nozzle, a grouting pipe, a mud pipe and a connector. The nozzle device is arranged right above the milling wheel and washes the milling wheel of the slot bottom slot milling machine through the grouting pipe along the rotating direction of the milling wheel. The clear water or the slurry is injected into the bottom of the groove to directly wash the milling wheel or wash along the rotating direction of the milling wheel, so that mud blocks and fine sand around the milling wheel are driven to be sucked away from the lower part of the milling wheel, the specific gravity of the bottom of the groove is improved, the working temperature of the milling wheel is reduced, and the situation that the mud blocks of the milling wheel are adhered at high temperature, agglomerated and tightly wrapped to cause no operation is prevented. The technical scheme in the patent application is that newly-prepared slurry or clean water is sprayed to a milling wheel at the bottom of a tank by a nozzle, the milling wheel is washed, and slurry at the bottom of the tank is diluted; the nozzle is arranged above the milling wheel and forms an included angle of 30-90 degrees with the horizontal plane, and the nozzle has the defects that slurry at the bottom of the groove is sticky and is easy to be converted into paste, and the slurry around the groove is difficult to be uniformly diluted by using clear water or flushing liquid, so that the local slurry concentration at the bottom of the groove is easy to be low, the slurry wall protection effect cannot be achieved, and the construction quality is influenced. Meanwhile, the nozzle is arranged above the milling wheel to spray clear water which is relatively close to the slag suction port of the milling wheel, and part of the sprayed clear water is easily and directly discharged from the slag suction port, so that the effect of spraying and diluting the slurry at the bottom of the tank is influenced.
In the chinese invention patent application No. 201611178827.7, a drilling machine and a method for preventing sticking of the drilling machine are disclosed, and a method for preventing sticking of the drilling machine is provided, the apparatus comprising: the drilling machine main body comprises an operating part and a drill rod, and the drill rod is connected with the operating part; the vibration generator is arranged on the drill rod main body. The vibration generator on the drill rod is used for generating vibration, so that the mud blocks adhered to the drill bit are vibrated to fall off, and the drill sticking operation of the drilling machine is avoided. This patent proposes to vibrate the drill pipe with a vibration generator, reducing the amount of mud cake sticking. If the method is applied to double-wheel milling groove construction, mud at the bottom of the groove is too sticky and weakens the vibration effect, and meanwhile, a milling wheel cutter frame is heavier than a drill bit, a vibration generator is poor in vibration effect, and the effect of dropping mud blocks by a vibration method is not ideal.
The utility model discloses an in 201320882742.2's the chinese utility model patent, a milling wheel mud scraper and double round slot milling machine thereof is disclosed, including at least one mud scraper, a plurality of otic placodes and round pin axle, a plurality of otic placodes are fixed respectively on inhaling the cinder notch lateral wall, set up the mud scraper between adjacent otic placode, otic placode and mud scraper set up at the interval in proper order, set up the hole on mud scraper and the otic placode respectively, the round pin axle inserts the hole of mud scraper and otic placode and installs the mud scraper, partly mud scraper can be fixed on inhaling sand notch lateral wall with dismantling, the mode that another part mud scraper can be fixed with dismantling.
In the application of the invention patent with the application number of 201710072296.1, the invention discloses a static milling wheel mud removal device and a slot milling machine, wherein an elastic mud scraping component is arranged, when the adhered mud on a milling wheel exceeds the height of a mud scraping end, the mud can force a mud scraping plate to bend upwards, but the resilience force of the mud scraping component enables the mud scraping end to be tightly attached to the surface of the mud, so that the mud on the milling wheel can be effectively scraped in time in the rotating process of the milling wheel, and the automatic mud removal is realized.
In these two patents of application number 201320882742.2 and 201710072296.1, because during the mud removal of mud scraper, miller tank bottom mud has changed into the thick lotion state of gluing, the stickness granule depends on the miller pinion rack in a large number and forms the mud piece, the mud piece can't effectively be got rid of when only using the mud scraper, the mud scraper increases the mud and adheres the area, cohere into the bold each other between the suspension mud piece, remove piling up at the slag suction opening, cause the slag suction efficiency to reduce, the unable timely suction of mud, make mud more sticky, the mud flow characteristic changes.
Disclosure of Invention
Aiming at the problems, the invention provides a mortar injection system and a mortar injection method for an anti-sticking wheel, which increase the proportion of non-sticky particles of slurry at the bottom of a working area (such as a deep bottom of the working area), change the grading of the slurry particles at the working area, reduce the concentration of the slurry at the bottom of the working area, increase the flowing property of the slurry, reduce the adhesion of sticky substances, change the self characteristics of a working medium and fundamentally solve the problem of sticking of the wheel of a double-wheel milling machine.
In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:
in a first aspect, the invention provides a mortar injection system for an anti-sticking wheel, which comprises a concentration sensor and a mortar injection unit; and when the concentration sensor detects that the slurry concentration in the working area is greater than a set threshold value, the mortar injection unit is started, mortar is injected into the working area by the mortar injection unit, the specific gravity of non-sticky particles is increased, the slurry particle gradation of the working area is changed, and the slurry concentration in the working area is reduced.
Optionally, the mortar injection unit comprises a mixer and a first control valve connected, the mixer being used for forming mortar; the output end of the first control valve is connected to a working area through a pipeline.
Optionally, the mortar injection unit further comprises a transfer tank and a first pump, an inlet of the transfer tank is connected with an outlet of the first control valve, an inlet of the first pump is connected with an outlet of the transfer tank, and an outlet of the first pump is connected to a working area through a pipeline.
Optionally, the mortar injection unit further comprises a splitter, an inlet of the splitter is connected with an outlet of the first pump through a pipeline, and each outlet of the splitter is connected with a sand blasting port.
Optionally, the mortar injection system for the anti-sticking wheel further comprises a guard plate, the sand blasting ports are arranged on the guard plate, each sand blasting port is provided with a nozzle, and an included angle α between a connecting line of the nozzle and the axis of the corresponding milling wheel and the guard plate is 30-60 °.
Optionally, the mortar injection unit further comprises a stirrer, and the stirrer is arranged in the transfer pool.
Optionally, the mortar injection unit further comprises a sand module and a slurry module, wherein outlets of the sand module and the slurry module are connected with an inlet of the mixer and are respectively used for providing sand and slurry for the mixer.
Optionally, the mud module comprises a slag suction port, a third pump, a separator, a mud pit, a second pump and a flow meter; the slag suction port is arranged in the working area, is connected with the separator through a pipeline, and sucks and discharges the slurry in the working area into the separator through the slag suction port for separation; the third pump is connected with the mud pit and is started to pump the wall protection mud in the mud pit into a working area; (ii) a After the slurry is fed into a separator, generating sand and slurry by the separator based on the slurry; the mud is sent into a mud pit for storage; one end of the second pump is connected with the mud tank after being connected with the flowmeter, and the other end of the second pump is connected with the mixer.
Optionally, the sand module comprises a slag suction port, a third pump, a separator, a screening machine, a sand silo, a second control valve and a meter; the slag suction port is arranged in the working area and is connected with the separator through a pipeline; the third pump is connected with the mud pit and started to pump the wall protection mud into a working area; after the slurry is fed into a separator, generating sand and slurry by the separator based on the slurry; the sand grains are sent into a sieving machine; and the sand grains in the sand bin are sent into the sieving machine after passing through the second control valve, the sand grains sieved by the sieving machine are sent into the metering device, and finally the sand grains are sent into the mixer through the metering device.
In a second aspect, the invention provides a wheel-sticking prevention mortar injection method, which comprises the following steps:
when the concentration sensor detects that the slurry concentration in the working area is larger than a set threshold value, the mortar injection unit is started, mortar is injected into the working area by the mortar injection unit, the specific gravity of non-sticky particles is increased, the slurry particle gradation of the working area is changed, and the slurry concentration in the working area is reduced.
Compared with the prior art, the invention has the beneficial effects that:
the mortar injection system and method for the anti-sticking wheel provided by the invention have the advantages that the mortar injection mode is adopted for injecting the mortar to a working area (such as a deep groove bottom), the proportion of non-sticky particles of the slurry at the groove bottom is increased, the grading of the slurry particles in the working area is changed, the concentration of the slurry at the groove bottom is reduced, the flowing property of the slurry is increased, the adhesion of sticky substances is reduced, the self characteristic of an operation medium is changed, and the problem of sticking the wheel of a double-wheel groove milling machine is fundamentally solved.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a mortar injection system for an anti-sticking wheel according to an embodiment of the present invention;
FIG. 2 is a schematic view of the installation position of a mortar nozzle according to an embodiment of the invention;
FIG. 3 is a schematic diagram illustrating the operation of a mortar injection system for an anti-sticking wheel according to an embodiment of the present invention;
wherein:
1-sand blasting port, 2-concentration sensor, 3-slag suction device, 4-flow divider, 5-mortar injection pipe, 6-third pump, 7-mud pool, 8-second pump, 9-separator, 10-slag suction pipeline, 11-No. 1 mud pipe, 12-metering belt, 13-sieving machine, 14-electronic belt scale, 15-second control valve, 16-sand bin, 17-No. 2 mud pipe, 18-flowmeter, 19-mixer, 20-stirrer, 21-transfer pool, 22-first pump, 23-first control valve, 24-mixer mud pipe and 25-guard plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
Example 1
As shown in fig. 1, an embodiment of the present invention provides an anti-sticking wheel mortar injection system, including: a concentration sensor 2 and a mortar injection unit;
and when the concentration sensor 2 detects that the slurry concentration in the working area is greater than a set threshold value, starting the mortar injection unit, and injecting mortar into the working area by the mortar injection unit to reduce the slurry concentration in the working area.
The concentration sensor 2 is generally arranged near the milling wheel; the working region refers to a groove bottom deep region; the parameters of the sand grain proportion of the mortar, the set threshold value of the slurry concentration (namely, the wheel sticking critical concentration) and the like are determined by a slump test, the slump height of the slurry after the mortar is mixed is ensured to be more than 200mm, and the grain size of the sand grains in the mortar is selected to be 0.5 mm-3 mm.
The anti-sticking wheel mortar injection system in the embodiment of the invention can be applied to slag suction and discharge operation of a double-wheel slot milling machine, and increases the proportion of non-sticky particles of slurry at the slot bottom, reduces the concentration of the slurry at the slot bottom, increases the fluidity of the slurry, reduces the adhesion of sticky substances, changes the self characteristics of an operation medium and fundamentally solves the problem of sticking wheels of the double-wheel slot milling machine by utilizing the mode of injecting the mortar to the deep slot bottom.
In a first embodiment of the invention, the mortar injection unit comprises a mixer 19 and a first control valve 23 connected, the mixer 19 being used to form mortar; the output of the first control valve 23 is connected to the working area by a pipe.
Further, based on the first embodiment, in a second embodiment of the present invention, the mortar injection unit further includes a transfer tank 21 and a first pump 22, an inlet of the transfer tank 21 is connected to an outlet of the first control valve 23 through a mixer mortar pipe 24, an inlet of the first pump 22 is connected to an outlet of the transfer tank 21, and an outlet thereof is connected to a working area through a mortar injection pipe 5. In order to improve the uniformity of the mortar, the mortar injection unit further comprises a stirrer 20, and the stirrer 20 is arranged in the transfer tank 21;
further, according to the first or second embodiment, the mortar injection unit further includes a flow divider 4, an inlet of the flow divider 4 is connected with an outlet of the first pump 22 through a pipeline, and is suitable for a case where a plurality of milling wheels are present, and each outlet of the flow divider 4 is connected with one sand blasting port 1. Each outlet of the flow divider 4 is respectively connected with a sand blasting port 1, which can be a sand blasting port corresponding to one milling wheel or a plurality of sand blasting ports corresponding to one milling wheel; the anti-sticking wheel mortar injection system further comprises a protection plate 25, the sand blasting ports are formed in the protection plate 25, nozzles are arranged at the sand blasting ports, an included angle alpha between a connecting line of each nozzle and the corresponding milling wheel axis and the protection plate 25 is 30-60 degrees, the included angle alpha is not easy to be too large or too small, and the mixing effect of mortar and tank bottom slurry is influenced due to the fact that the alpha is too large; the distance between the alpha undersize nozzle and the milling wheel is increased, so that the washing effect of the milling wheel is influenced, and the specific reference is made to fig. 2.
Example 2
Based on the embodiment 1, in the embodiment of the invention, the retaining wall slurry is used as a conveying medium of sand, and on the premise of ensuring the retaining wall effect of the milling groove, mortar is injected to the deep area of the groove bottom, so that the adhesion of the slurry at the groove bottom is reduced, and the automatic control of the proportion of the sand and the retaining wall slurry, the mortar injection of a milling wheel and the mortar suction and discharge circulation is realized.
Specifically, the embodiment of the present invention is different from embodiment 1 in that:
the mortar injection unit further comprises a sand module and a slurry module, wherein outlets of the sand module and the slurry module are connected with an inlet of the mixer 19 and are respectively used for providing sand and slurry for the mixer 19.
The mud module comprises a slag suction port 3, a third pump 6, a separator 9, a mud pit 7, a second pump 8 and a flowmeter 18; the slag suction port 3 is arranged in the working area and is connected with the separator 9 through a pipeline; the third pump 6 is connected with the mud pit 7, the third pump 6 is started, and the retaining wall mud in the mud pit 7 is pumped into a working area (namely a milling groove) to ensure that the milling groove is filled with the retaining wall mud; (ii) a After the slurry is fed into the separator 9, sand and slurry are generated by the separator 9 based on the slurry; the mud is sent into a mud pit 7 for storage through a No. 1 mud pipe 11; one end of the second pump 8 is connected with a flow meter 18 and then is connected with the mud pit 7 through a No. 2 mud pipe 17, and the other end is connected with the mixer 19.
The sand module comprises a slag suction port 3, a third pump 6, a separator 9, a screening machine 13, a sand bin 16, a second control valve 23 and a meter; the slag suction port 3 is arranged in the working area and is connected with the separator 9 through a pipeline; the third pump 6 is connected with the mud pit 7, the third pump 6 is started, and the retaining wall mud in the mud pit 7 is pumped into a working area (namely a milling groove) to ensure that the milling groove is filled with the retaining wall mud; (ii) a After the slurry is fed into the separator 9, sand and slurry are generated by the separator 9 based on the slurry; the sand grains are fed into a sieving machine 13; the sand in the sand bin 16 passes through a second control valve 23 and then is sent into the sieving machine 13, the sand sieved by the sieving machine 13 is sent into a meter, and finally the sand is sent into the mixer 19 through the meter; in a specific implementation process, the metering device can be a metering belt 12 provided with an electronic belt scale 14;
when the double-wheel slot milling machine performs slot milling operation, the concentration sensor 2 is utilized to detect the slurry concentration in the deep area of the slot bottom in real time, when the slurry concentration at the bottom of the tank is detected to be increased to the critical concentration of the sticky wheel, the mortar injection unit is started, the wall protection slurry in the slurry tank 7 is pumped into the mixer by the second pump 8, sand grains are sent into the mixer by the meter, then the wall protection slurry is mixed with sand grains by a mixer to prepare mortar with a certain concentration, the mortar is sent into the flow divider 4 by the first pump 22 and finally sprayed to the operation area of the milling wheel at the bottom of the groove, meanwhile, the original construction operation parameters of the milling wheel slot milling machine are modified, the milling descending speed of the double-wheel milling wheel is properly adjusted to be low, the rotating speed of the milling wheel of the double-wheel slot milling machine is increased, the slag suction and discharge power of the double-wheel slot milling machine is increased, mortar and slurry at the bottom of the slot are uniformly mixed, silt after the mixing at the bottom of the slot is sucked and discharged, and the sucked and discharged silt is recycled after being treated by the separator 9.
The working process of the wheel-sticking prevention mortar injection system in the embodiment of the invention is described in detail with reference to fig. 3:
1. the concentration sensor 2 arranged near the milling wheel is used for detecting the concentration of the slurry at the bottom of the double-wheel slot milling machine in the slot milling operation in real time, when the concentration of the slurry reaches the critical concentration, the screening machine is started, the second control valve 23 is opened at the same time, sand grains in the sand bin flow into the screening machine through a sand bin pipeline, and meanwhile, the sand grains separated by the separator 9 are sent into the screening machine together for screening;
2. and starting the metering belt 12 and the second pump 8, calculating the mass of the conveyed sand particles by using an electronic belt scale arranged on the metering belt 12, and conveying the screened sand particles to the mixer by adjusting the rotating speed of the metering belt. The second pump 8 pumps the retaining wall slurry in the slurry pool 7 to the mixer through a No. 2 slurry pipeline, the mass of the slurry pumped to the mixer is calculated by using a flow meter arranged on the No. 2 slurry pipeline, and the mass of the slurry pumped is adjusted by controlling the start and stop of the second pump 8;
3. and opening the mixer, uniformly stirring the wall protection slurry and the sand to form mortar, opening the first control valve 23 to enable the mortar to flow into the transfer tank 21, communicating the first control valve 23 with the mortar transfer tank 21 through a mortar pipeline 24 of the mixer, and controlling whether the mortar flows into the transfer tank 21 by controlling the opening and closing of the first control valve 23.
4. The method comprises the steps that a stirrer in a transit pool 21 and a first pump 22 are started, mortar which is uniformly stirred is injected through a mortar injection pipe 5 by the first pump 22, the mortar injection pipe 5 is communicated with a flow divider 4, the mortar in the mortar injection pipe 5 is divided into flows by the flow divider 4, lateral injection is carried out on milling wheels through mortar nozzles 1, and each milling wheel needs at least one mortar nozzle 1 for injection.
5. The injected mortar is mixed with the bottom slurry by milling action of a milling wheel, the mixed silt is discharged to a separator 9 through a slag suction device 3 for desliming treatment, the separated slurry flows into a slurry tank 7 through a No. 1 slurry pipe, and the separated sand is recycled after being screened by a screening machine.
Example 3
The embodiment of the invention provides a mortar injection method for an anti-sticking wheel, which comprises the following steps:
and when the concentration sensor 2 detects that the slurry concentration in the working area is greater than a set threshold value, starting a mortar injection unit, and injecting mortar into the working area by the mortar injection unit to reduce the slurry concentration in the working area.
When the method of the embodiment of the invention is applied to the mortar injection system of the anti-sticking wheel in the embodiment or the embodiment 2, the method specifically comprises the following steps:
1. the concentration sensor 2 arranged near the milling wheel is used for detecting the concentration of the slurry at the bottom of the double-wheel slot milling machine in the slot milling operation in real time, when the concentration of the slurry reaches the critical concentration, the screening machine is started, the second control valve 23 is opened at the same time, sand grains in the sand bin flow into the screening machine through a sand bin pipeline, and meanwhile, the sand grains separated by the separator 9 are sent into the screening machine together for screening;
2. and starting the metering belt and the second pump 8, calculating the mass of the conveyed sand particles by using an electronic belt scale arranged on the metering belt, and conveying the screened sand particles to the mixer by adjusting the rotating speed of the metering belt. The second pump 8 pumps the retaining wall slurry in the slurry pool 7 to the mixer through a No. 2 slurry pipeline, the mass of the slurry pumped to the mixer is calculated by using a flow meter arranged on the No. 2 slurry pipeline, and the mass of the slurry pumped is adjusted by controlling the start and stop of the second pump 8;
3. and opening the mixer, uniformly stirring the wall protection slurry and the sand to form mortar, opening the first control valve 23 to enable the mortar to flow into the transfer tank 21, communicating the first control valve 23 with the mortar transfer tank 21 through a mortar pipeline 24 of the mixer, and controlling whether the mortar flows into the transfer tank 21 by controlling the opening and closing of the first control valve 23.
4. The method comprises the steps that a stirrer in a transit pool 21 and a first pump 22 are started, mortar which is uniformly stirred is injected through a mortar injection pipe 5 by the first pump 22, the mortar injection pipe 5 is communicated with a flow divider 4, the mortar in the mortar injection pipe 5 is divided into flows by the flow divider 4, lateral injection is carried out on milling wheels through mortar nozzles 1, and each milling wheel needs at least one mortar nozzle 1 for injection.
5. The injected mortar is mixed with the bottom slurry by milling action of a milling wheel, the mixed silt is discharged to a separator 9 through a slag suction device 3 for desliming treatment, the separated slurry flows into a slurry tank 7 through a No. 1 slurry pipe, and the separated sand is recycled after being screened by a screening machine.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An anti-sticking wheel mortar injection system which is characterized in that: the mortar spraying device comprises a concentration sensor and a mortar spraying unit; and when the concentration sensor detects that the slurry concentration in the working area is greater than a set threshold value, the mortar injection unit is started, mortar is injected into the working area by the mortar injection unit, the specific gravity of non-sticky particles is increased, the slurry particle gradation of the working area is changed, and the slurry concentration in the working area is reduced.
2. The wheel stick prevention mortar injection system according to claim 1, wherein: the mortar injection unit comprises a mixer and a first control valve which are connected, and the mixer is used for forming mortar; the output end of the first control valve is connected to a working area through a pipeline.
3. The wheel stick prevention mortar injection system according to claim 2, wherein: the mortar injection unit further comprises a transfer tank and a first pump, an inlet of the transfer tank is connected with an outlet of the first control valve, an inlet of the first pump is connected with an outlet of the transfer tank, and an outlet of the first pump is connected to a working area through a pipeline.
4. An anti-sticking wheel mortar injection system according to claim 3, characterized in that: the mortar injection unit further comprises a flow divider, an inlet of the flow divider is connected with an outlet of the first pump through a pipeline, and each outlet of the flow divider is connected with a sand blasting port.
5. The wheel stick prevention mortar injection system according to claim 4, wherein: the mortar injection system for the anti-sticking wheel further comprises a protective plate, the sand blasting ports are formed in the protective plate, nozzles are arranged at the sand blasting ports, and the included angle alpha between the connecting line of the nozzles and the axis of the corresponding milling wheel and the protective plate is 30-60 degrees.
6. An anti-sticking wheel mortar injection system according to claim 3, characterized in that: the mortar injection unit further comprises a stirrer, and the stirrer is arranged in the transfer pool.
7. The wheel stick prevention mortar injection system according to claim 2, wherein: the mortar injection unit further comprises a sand module and a slurry module, wherein outlets of the sand module and the slurry module are connected with an inlet of the mixer and are respectively used for providing sand and slurry for the mixer.
8. The wheel stick prevention mortar injection system according to claim 7, wherein: the slurry module comprises a slag suction port, a third pump, a separator, a slurry pool, a second pump and a flowmeter; the slag suction port is arranged in the working area, is connected with the separator through a pipeline, and sucks and discharges the slurry in the working area into the separator through the slag suction port for separation; the third pump is connected with the mud pit and pumps the wall protection mud in the mud pit into a working area; after the slurry is fed into a separator, generating sand and slurry by the separator based on the slurry; the mud is sent into a mud pit for storage; one end of the second pump is connected with the mud tank after being connected with the flowmeter, and the other end of the second pump is connected with the mixer.
9. The wheel stick prevention mortar injection system according to claim 7, wherein: the sand module comprises a slag suction port, a third pump separator, a screening machine, a sand bin, a second control valve and a meter; the slag suction port is arranged in the working area, is connected with the separator through a pipeline, and sucks and discharges the slurry in the working area into the separator through the slag suction port for separation; the third pump is connected with the mud pit and pumps the wall protection mud in the mud pit into a working area; after the slurry is fed into a separator, generating sand and slurry by the separator based on the slurry; the sand grains are sent into a sieving machine; and the sand grains in the sand bin are sent into the sieving machine after passing through the second control valve, the sand grains sieved by the sieving machine are sent into the metering device, and finally the sand grains are sent into the mixer through the metering device.
10. A mortar injection method for an anti-sticking wheel is characterized by comprising the following steps:
when the concentration sensor detects that the slurry concentration in the working area is larger than a set threshold value, the mortar injection unit is started, mortar is injected into the working area by the mortar injection unit, the specific gravity of non-sticky particles is increased, the slurry particle gradation of the working area is changed, and the slurry concentration in the working area is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870785.0A CN110593340B (en) | 2019-09-16 | 2019-09-16 | Anti-sticking wheel mortar injection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870785.0A CN110593340B (en) | 2019-09-16 | 2019-09-16 | Anti-sticking wheel mortar injection system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110593340A true CN110593340A (en) | 2019-12-20 |
| CN110593340B CN110593340B (en) | 2023-07-04 |
Family
ID=68859757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910870785.0A Active CN110593340B (en) | 2019-09-16 | 2019-09-16 | Anti-sticking wheel mortar injection system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110593340B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195948A (en) * | 2020-12-02 | 2021-01-08 | 上海建工集团股份有限公司 | Wiring device for cement soil wall construction quality monitoring cable and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2586962A1 (en) * | 2011-10-24 | 2013-05-01 | Soilmec S.p.A. | System for evacuating sludge for a trench excavating machine |
| CN104912140A (en) * | 2015-06-03 | 2015-09-16 | 中港疏浚有限公司 | Clay drag head flushing system |
| CN109989440A (en) * | 2019-05-22 | 2019-07-09 | 江苏徐工工程机械研究院有限公司 | The control method and system of slotter prevention paste wheel |
| CN210946954U (en) * | 2019-09-16 | 2020-07-07 | 江苏徐工工程机械研究院有限公司 | Mortar injection system for anti-sticking wheel |
-
2019
- 2019-09-16 CN CN201910870785.0A patent/CN110593340B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2586962A1 (en) * | 2011-10-24 | 2013-05-01 | Soilmec S.p.A. | System for evacuating sludge for a trench excavating machine |
| CN104912140A (en) * | 2015-06-03 | 2015-09-16 | 中港疏浚有限公司 | Clay drag head flushing system |
| CN109989440A (en) * | 2019-05-22 | 2019-07-09 | 江苏徐工工程机械研究院有限公司 | The control method and system of slotter prevention paste wheel |
| CN210946954U (en) * | 2019-09-16 | 2020-07-07 | 江苏徐工工程机械研究院有限公司 | Mortar injection system for anti-sticking wheel |
Non-Patent Citations (1)
| Title |
|---|
| 化学工业部人事教育司等: "液相非均一系分离", 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195948A (en) * | 2020-12-02 | 2021-01-08 | 上海建工集团股份有限公司 | Wiring device for cement soil wall construction quality monitoring cable and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110593340B (en) | 2023-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210946954U (en) | Mortar injection system for anti-sticking wheel | |
| CN103195363B (en) | Negative-pressure jet-type particle impact drilling injection device | |
| CN210393963U (en) | Mud dehydration processing system | |
| CN111906132A (en) | Agitating unit of heavy metal contaminated soil solidification stabilization is restoreed to normal position | |
| CN111533428B (en) | Construction method for curing building slurry | |
| CN107443572A (en) | A kind of mud pit configuration application method for meeting two slurry shield machines and constructing simultaneously | |
| CN108104749A (en) | Sandstone geothermal well gas lift reverse circulation sand-flushing Processes and apparatus | |
| CN101343987A (en) | Drilling fluid cleaning system device | |
| CN108894741A (en) | A kind of mud cyclic processing device | |
| CN107935338A (en) | A kind of pipeline sludge curing process equipment and its construction method | |
| CN207401762U (en) | A kind of efficient sandstone screening water cycle utilization device | |
| CN110593340A (en) | Anti-sticking wheel mortar injection system and method | |
| CN109183801A (en) | A kind of waterpower mixing sand delivering system of environmental protection | |
| CN108380429A (en) | A kind of bridge construction Reinforced Concrete in Bridge spraying equipment | |
| CN109433579A (en) | A kind of fixed-end forces equipment | |
| CN108160306A (en) | A kind of water-saving petroleum geology well logging sand-washing device | |
| CN207905745U (en) | Sandstone geothermal well gas lift reverse circulation sand-flushing equipment | |
| CN205289068U (en) | Automatically cleaning sand and stone separator | |
| CN212916991U (en) | Shield soil pollution-free rapid treatment device | |
| CN206142327U (en) | Detritus washs conveying equipment and system thereof | |
| CN209430215U (en) | A kind of tunnel construction cement transportation equipment | |
| CN213194840U (en) | Concrete waste recovery device | |
| CN212218862U (en) | Mixer for hydraulic and hydroelectric engineering building | |
| CN208136994U (en) | A kind of harnessing silted Yellow River Accrete clearing device | |
| CN209128998U (en) | A kind of waterpower mixing sand delivering system of environmental protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |