CN103216248A

CN103216248A - Wet type shotcrete machine

Info

Publication number: CN103216248A
Application number: CN2013101494165A
Authority: CN
Inventors: 胡方志
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-26
Filing date: 2013-04-26
Publication date: 2013-07-24
Anticipated expiration: 2033-04-26
Also published as: CN103216248B

Abstract

Provided is a wet type shotcrete machine. The wet type shotcrete machine comprises a rack portion, a power portion, a driving portion, a stirring machine portion, a watering device portion, a quantitative screw conveyor portion, a control portion and a spraying mechanism portion. The rack portion is a main body supporting piece, and is integrally of a frame structure, a pair of tramcar wheels which make contact with rails are arranged on the lower portion of the rack portion, a speed reducer component of the stirring machine is arranged in the middle of the upper portion of the rack portion, the watering device portion is arranged on one side of the speed reducer component, the driving portion is arranged on the connection between the watering device portion and the speed reducer component, the power portion is arranged at one end of the rack portion and is connected with the driving portion, the quantitative screw conveyor portion is arranged at the other end of the rack portion, the control portion is arranged on one side of the quantitative screw conveyor portion, and the spraying mechanism portion is arranged on the lower portion of a stirring barrel of the stirring machine portion. The wet type shotcrete machine combines a function of stirring and a function of spraying into a whole, and is small in size, convenient to move and wide in applicability.

Description

Wet concrete sprayer

Technical field

The present invention relates to mine geotechnical engineering construction equipment, relate in particular to wet concrete sprayer.

Background technology

Wet concrete sprayer is the widely used a kind of construction equipments in field such as underground passage (tunnel) engineering, geotechnical engineering, municipal engineering.It is to utilize compressed air to be power, with mix by a certain percentage mix and stir material (a certain proportion of sand, aggregate chips, cement) by line transportation to being subjected to setting and harden on the spray plane, thereby the formation concrete supporting.Concrete-spraying technology technology is simple, and construction cost is low, and is widely applicable, brought into play important effect in various building fields.

The development of concrete sprayer both at home and abroad:

The development of concrete sprayer is divided into dry type concrete spraying machine and two kinds of technology of wet concrete sprayer, two stages in other words.Set forth respectively below:

(1) development and the situation of domestic and international dry type concrete spraying machine

Abroad, nineteen forty-seven, BSM company in Germany is developed into double-pot type dry type concrete spraying machine.After, Britain, the former Soviet Union, Japan etc. develop various dry type concrete spraying machines in succession.China takes up to develop concrete spraying equipment from the sixties.Successively develop smelting and build-65 types (research institute of building materials of Ministry of Metallurgical Industry), PH30-74 type (Yangzhou Machinery Factory), HLP-701 type various dry type concrete spraying machines such as (Coal Mining Research Institutes).Up till now, the whole nation has the producer that last hundred families produce the dry type concrete spraying machine especially.

The dry type concrete spraying machine, the overwhelming majority is a rotator type.Its operating principle and architectural feature are: the rotor that has liner plate is with certain rotating speed rotation, board is pressed on the liner plate and maintains static, be connected with blast pipe and discharging elbow on the board, when each material cup that compound is housed in the rotor turns to when communicating with blast pipe and discharging elbow, under compressed-air actuated effect, compound is transported to the nozzle place by discharging elbow and conveying pipeline (general about 60 meters), and adds the water mixing jetting at the nozzle place and go out.In this process, the sealing surface of being made up of board and liner plate has played the effect of seal compression air and compound (the especially powdered cement in the compound).

The major advantage of dry type concrete spraying machine is that this spraying machine is simple in structure, reliable working performance; Profile is little in light weight; Easy to operate; Jet length is long.Shortcoming is because it uses the dry type spice, and compound is transported to the nozzle place by strength just to be mixed with water, so the construction dust is big, especially in narrow roadway construction, dust pollution is even more serious; Resilience (compound and the rate that combines that is subjected to spray plane) height, waste of material is serious; A liner plate board quick abrasion, accessory cost height; Each shift all needs to clear up the compound coagulation in the pulp shooting machine, and an individual demand dismounting and cleaning 2-3 hour, the cost of labor height.

(2) development and the situation of external wet concrete sprayer

From the sixties, at western developed country, wet-spray technique begins to carry out gradually, and various wet spraying machines are developing successively also.So-called wet shot, its basic principle are that the finished product concrete that Jiang Jiashui stirs adds Wet-type patching machine, are delivered to the nozzle place, form behind the admixture accelerating admixture and expect to restraint to be sprayed onto to be subjected to spray plane.At present, in some western countries, wet concrete sprayer becomes main sprayed mortar work tool gradually.

Do spray and wet shot proportion in the sprayed mortar operation of table 1 part western countries

Country	Wet shot (%)	Do spray (%)
			France	60	40
Italy	90	10
			Japan	80	20
Norway	99	1
			Switzerland	65	35
The U.S.	60	40

Put it briefly, the major advantage of wet concrete sprayer is: (1) greatly reduces the dust concentration at machine side and nozzle place, has eliminated the harm to workers ' health.(2) productivity ratio height.The dry type wet concrete sprayer generally is no more than 5m3/h, and uses wet concrete sprayer, can reach 10 m3/h during manual work, if adopt the manipulator operation, then can reach 20m3/h.(3) rebound degree is low.When doing spray, the concrete springback rate can reach 15%-50%.Adopt wet-spray technique, rebound degree can be reduced to below 10%.(4) during wet shot, because water/binder ratio is easy to control, concrete hydrating degree height admittedly can improve the quality of sprayed mortar greatly, improves concrete homogeneity.And do when spraying, concrete water/binder ratio is to have the hand of injection rule of thumb to reach perusal to regulate, concrete quality depends on to a great extent whether the operating experience and the operation of spraying hand be correct.Along with the application of concrete spraying technique, various countries develop a series of wet concrete sprayer in the different periods respectively.According to its operating principle, can be divided into pumping type and air-driven type two big classes.Pumping type is divided into following several: 1, plunger displacement pump formula wet shot machine: this wet shot machine is with the basic body of plunger type concrete pump as the wet type wet concrete sprayer, adorn with nozzle in the carrier pipe outlet, and, concrete is ejected at this feeding compressed air.This class wet shot machine is generally relatively heavier, but fed distance is long.What use in some large hydraulic engineerings such as two beaches, Xiao Langdi is exactly this, as the Robojet041 type concrete sprayer of Switzerland MEYNADIER company.2, screw pump formula wet shot machine: this wet shot machine is to overlap the mutual variation that connects the volume in space, angle when meshing with screw rod and nail to come convey materials.Such wet shot machine has the SB-3 type of German UELMAT company.China units concerned also once carried out development.The major defect of this machine is that production efficiency is low, and the wearing and tearing of screw rod and stator cover are more serious, so range of application is little.3, flexible pipe extrusion pump formula wet shot machine: this wet shot machine is made up of parts such as stirring bucket, pumping flexible pipe, the pump housing and conveying pipeline.The pump housing is a cylindrical shape, and middle deployment trip star drive mechanism drives two roller transmissions, and the wet feed in the continuously extruded pumping line makes it to enter the conveying pipeline force feed and goes out.Extremely eastern PC08-60M type of Japan and CHALLENGE type concrete spraying machine promptly belong to this type of wet shot machine.According to report, this spraying machine was once used wider abroad, but from domestic in recent years introduction situation, seldom used, and subject matter is that the extruded tube life-span is short.

The pneumatic transmission type is divided into following several: 1, two jars of side-by-side wet shot machines: this class wet shot machine is to utilize compressed air that material is delivered to nozzle with the form of " thin stream " with material in flexible pipe directly to spray.Such as Britain COMPERNASS-208 type wet shot machine, this machine two jars side by side, an injection is got the raw materials ready for one.Jar the bottom helical conveyor of an accumbency is respectively arranged, feed compressed air in the spray tank, wet mix is sent conveying pipeline to through spiral, at the nozzle place, the compressed air of introducing by compression ring will mix and stir material and eject.The shortcoming of this wet shot machine is cumbersome to ladle addition, and the cleaning of jar is also inconvenient.2, two jars of stacked wet shot machines: this wet shot machine is two stacked jars of setting, last jar of spice, and following jar is sprayed.Jar all has sealed valve up and down, alternately opens closure, to realize continuous injection.Following pot bottom has an accumbency spiral, drives wet mix and ejects in the pipe to expecting.The shortcoming of this wet shot machine is that the material loading height is big, and is relatively heavier.3, rotator type wet shot machine: this wet shot machine is a rotor structure, adopts fluid pressure drive device, and the load variation pump drives rotor rotation by hydraulic motor, and rotating speed is adjustable, thereby makes emitted dose adjustable.Wet mix during work in the hopper falls into rotor material hole, behind Rotate 180 °, the material hole communicates with the compressed air air inlet, wet mix then with suspended state by force feed to discharge nozzle, through at the nozzle mixing chamber with after liquid accelerator fully mixes fast, spray at a high speed from nozzle.Switzerland A Liwa 280 type wet shot machines for example, the shortcoming of this machine is the equipment investment height, and maintenance workload is big, and it is many that deadweight reaches 2t, and mobility is also relatively poor.

(3) domestic wet concrete sprayer development and situation

At home, at present for various reasons, dry spraying machine is still main spraying equipment.But, there has been increasing wet type wet concrete sprayer to come into operation along with the enhancing of people's environmental consciousness and to the raising of sprayed mortar quality requirement.In the large hydraulic engineering of some international biddings,, all adopted wet type concrete spraying operation as power station, two beaches, the Yellow River Xiao Langdi engineering, Three Gorges Projects etc.The various wet concrete sprayers of domestic present use are the equipment from external introduction mostly.In recent years, more domestic units also begin to have developed several wet concrete sprayers.Mainly contain following several: 1, SPZ-6 type wet concrete sprayer: SPZ-6 type wet concrete sprayer is a kind of pneumatic transmission rotator type wet concrete sprayer of being succeeded in developing by Beijing mining and metallurgy research general headquarters.The operating principle of this spraying machine is similar to Switzerland A Liwa 280 type spraying machines, its rotor by motor through the reductor driven rotary.This equipment investment is few, and the production efficiency height is in light weight, and mobility is good.SPZ-6 type wet concrete sprayer has carried out industrial experiment in Beijing urban construction big willow building site and Gansu Jinchuan Nonferrous Metal Co. respectively, obtained good effect, and passed through the technical appraisement of China Non-Ferrous Metal Corporation in December, 1996, obtain national patent power (patent No. ZL98207689.4) in August, 1998.2, TK-961 type wet concrete sprayer: TK-961 type wet concrete sprayer is a kind of rotary piston formula wet shot machine that southwest branch of railway research institute develops in recent years.This machine utilizes one group of piston that wet mix is pushed the into mixing chamber at top, through with after air mixes, is transported to nozzle by flexible pipe, sprays behind nozzle place admixture accelerating admixture.The major advantage of this machine is that no residual air bat is put, and the feeding continuity is good.It is reported that this equipment is at the Baoji-Chengdu Railway, grows tall and uses in the engineering such as fast highway in the Chongqing.And gain the national patent (patent No. ZL9232716.5).3, vane type wet concrete sprayer: the vane type wet concrete sprayer is a kind of wet shot machine that Anqing permanent secret service journey mechanical investigations is developed.This wet shot machine has adopted a kind of impeller drawing-in device (patent No. ZL96202768.5), has reliable operation, and long service life adapts to advantages such as particles of aggregates is big.The AH series of products have been produced at present.

During applying, wet concrete sprayer needs some problems of solving

At present, because wet-spray technique has remarkable advantages, wet concrete sprayer is more and more in each engineering Application for Field, is the trend of spraying operation.But the problem owing to remaining in some solutions has played certain obstruction to applying of wet concrete sprayer.To such an extent as in China, present main sprayed mortar operating type remains and does spray is main.The subject matter that the wet type concrete spraying operation of prior art exists is as follows: wet concrete sprayer adopts liquid accelerator more.The price height of import and joint accelerating admixture (per ton 6000-8000 unit), the used powder accelerator price of corresponding dried spray is per ton has only more than 1000 yuan.Labor cost and environmental consciousness wait to improve.The device systems of wet concrete sprayer is comparatively complicated, and operation and maintenance are not as good as dry spraying machine.The investment of wet concrete sprayer is big.General wet concrete sprayer reaches tens times than dry spraying machine is expensive.At present, mainly still the dry method injection is many in the sprayed mortar operation.There is following shortcoming in dry method spraying operation method: 1, hermetically-sealed construction is bad, and dust pollution is serious; 2, gas leakage is serious, plugging easily, and ejection efficiency is low; 3, springback capacity is big, and waste of material is serious; 4, accessory serious wear, waste is big, the fittings cost height; 5, cement and sand, aggregate chips manually stir, and airborne dust is big; 6, powder accelerator adds by artificial, and proportioning is inhomogeneous; 7, because the deflation that leaks out causes the cement loss big, change mix proportion, reduced concrete quality.Owing to there are the problems referred to above, advocating and promoting the injection of wet type concrete is trend.This kind job practices has following advantage: 1, greatly reduce the dust concentration at machine side and nozzle place, eliminated the harm to workers ' health.2, rebound degree is low.When doing spray, the concrete springback rate can reach 15%-50%.Adopt wet-spray technique, rebound degree can be reduced to below 10%.3, during wet shot, because water/binder ratio is easy to control, concrete hydrating degree height admittedly can improve the quality of sprayed mortar greatly, improves concrete homogeneity.But the wet type concrete sprays and also has following problem: 1, use liquid accelerating admixture, increased construction cost (be powder accelerator cost about 8 times), and liquid accelerating admixture has penetrating odor, and corrosion easily damages easily to constructor's health; 2, complex structure, bulky, because the coal mine roadway space is limited, so on-the-spot bad adaptability; 3, the gas leakage of rotator type wet shot machine is serious, plugging easily, and ejection efficiency is low; 4, unit price costliness, general wet shot unit price is all between 40-50 ten thousand; 5, wet type concrete gunite need will be whitewashed earlier and be expected to mix, and therefore the preposition operation of stirring, transportation, material loading will be arranged, and construction is complicated; 6, all need water that equipment is cleaned behind each spraying operation, increased personnel selection man-hour; 7, fittings cost height.

Conclusion is got up, and the subject matter that the concrete injection apparatus of prior art exists is: the irregular problem of dry method whitewashing spice; The gas leakage of dry method whitewashing pulp shooting machine is serious, the with serious pollution problem of dust from flying; Dry method whitewashing accessory serious wear, the problem that replacement cost is high; Dry method is sprayed easy plugging problem; Cost height and the big corrosion-prone problem of smell that existing wet concrete sprayer uses liquid accelerating admixture to exist mostly; Wet concrete sprayer whitewashing material is blocked the shotcrete pipe problem easily; Wet concrete sprayer cost height, bulky problem; The wet concrete sprayer complicated operation, personnel selection many problems in man-hour.

Summary of the invention

The objective of the invention is to, overcome the deficiencies in the prior art part, a kind of wet concrete sprayer is provided, can be widely used in fields such as underground passage engineering, geotechnical engineering, municipal engineering, utilize compressed air to be power, with the mix that mixes by a certain percentage by line transportation to being subjected to setting and harden on the spray plane, thereby form concrete supporting, said mix includes a certain proportion of sand, aggregate chips and cement.

Wet concrete sprayer of the present invention includes eight major parts, is respectively: rack section, power section, running part, mixer part, watering device part, quantitatively the conveying worm part, control part and injection equipment part.Rack section is the body supports part of wet concrete sprayer of the present invention, integral body is frame construction, it is right to be provided with the mine tram wheel that contacts with track below the rack section, the position top placed in the middle of rack section, be provided with the mixer part, include the reductor parts of mixer, side at the reductor parts is provided with the watering device part, the position that is connected with the reductor parts, be provided with running part, on an end of rack section, be connected with running part, be provided with power section.On the other end of rack section, be provided with quantitative conveying worm part, the side in quantitative conveying worm part is provided with and controls part.Below the agitator of mixer part, be provided with the injection equipment part.Rack section include chassis, engine reductor junction plate, column, mixer reductor junction plate, watering device, crossbeam, quantitatively helical feed frame, unidirectional blower air feed interface, to control part panel, motor button, watering device control valve, air-flow material channel air feed interface, agitator bracing frame and mine tram wheel right.Form support by four root posts and two crossbeams; The agitator bracing frame is four short columns that are welded on the chassis, is welded with flat board on the top of said four short columns, and agitator is placed on the flat board, and by bolt agitator is fixed on the flat board; Quantitatively the helical feed frame is by forming by two tripods that are bolted on the column, and quantitatively conveying worm is fixed on the quantitative helical feed frame; The reductor junction plate is that two block plates are arranged, be welded on respectively on crossbeam and the column, be used for fixing the reductor of power section and the reductor of mixer part respectively, the steel plate that is arranged on the crossbeam is the mixer reductor junction plate of mixer part, being arranged on the steel plate of stud sides, is the engine reductor junction plate of power section.Watering device includes a high-pressure rubber pipe and a spraying joint.Control part and include control panel, motor button, watering device control valve, air-flow material channel air feed interface and total air inlet port.The motor button is arranged on to be controlled on the part panel, near the motor button, be provided with the watering device control valve, side at the watering device control valve, be provided with air-flow material channel air feed interface, the upper end of air-flow material channel air feed interface is connected with total air inlet port and unidirectional blower air feed interface with the form of tee junction.Power section is made up of a motor and reductor.The below of motor is connected with a reductor, to increase moment of torsion; Power section is fixed in the middle of two root posts of frame one end.The power output shaft of power section is a driving shaft, the outer end of driving shaft is provided with the top chock that supports usefulness, driving shaft is connected to driven shaft a by transmission device (sprocket wheel, chain), the end of driven shaft a is provided with wheel a, driven shaft a is connected to the end of driven shaft b by transmission device (chain, sprocket wheel), the other end of driven shaft b is connected to the sprocket wheel of driven shaft c end again by driving chain, the other end of driven shaft c is provided with gear.Driving shaft is provided with driving gear, and driven shaft d is provided with driven gear, and driving shaft connects driving driven shaft d with the form of gears engaged, and driven shaft d is supported on the step, and the other end of driven shaft d is provided with wheel b.Driving shaft is installed on two root posts identical with the stationary power part, by the bearing support that is erected on two root posts driving shaft is fixed; 1 sprocket wheel, a gear wheel are arranged on the driving shaft.Driving shaft is connected with the speed reducer output shaft hole of power section.Axle above the driving shaft be driven shaft a, driven shaft a be installed in stationary power two identical root posts partly on, by the bearing support that is erected on two root posts driven shaft a is fixed; Respectively there is a sprocket wheel at two ends on the driven shaft b; The power shaft that turns to reductor on driven shaft a and the mixer is by being connected wheel a, and driving shaft passes through chain with driven shaft a, sprocket wheel links, and when motor rotates, is that mixer is imported power.Axle below the driving shaft is driven shaft d, and driven shaft d is installed in below the agitator, by two bearing supports driven shaft d is erected on the chassis; A pinion is arranged above the driven shaft d, and the helical axis of the conveying worm that driven shaft d and horizontal cross are placed is by being connected taking turns b; Driven shaft d and driving shaft couple together by gear meshing, can certainly take turns connection by sprocket wheel, and when motor rotated, the conveying worm of placing for horizontal cross provided power; Helical axis afterbody and driven shaft d are by being connected wheel b.Axle above the driven shaft a be driven shaft b, and driven shaft b is erected at stationary power two root posts partly and the top of other two root posts by bearing support, and respectively there is a sprocket wheel at driven shaft b two; Driven shaft a and driven shaft b link by the sprocket wheel chain; When rotating under the driving of driven shaft a at motor, b provides rotary power for driven shaft.One of driven shaft c is installed in the bearing support on other two root posts relative with the two identical root posts of stationary power part, and the other end is installed in the bearing support on the three-legged supporting frame of the conveying worm that sets up quantitative conveying cement, accelerating admixture.A sprocket wheel and a gear are arranged above the driven shaft c, driven shaft b and driven shaft c are linked, when driven shaft b rotates, provide power simultaneously for driven shaft c by chain; When driven shaft c rotated, the quantitatively work of conveying cement hardener in agitator was finished in the gear rotation on the helical axis of the conveying worm of the quantitative conveying of the gears engaged drive cement hardener on the driven shaft c.One of main body of mixer part is an agitator, agitator is arranged on the agitator bracing frame, lower end one side of agitator, be provided with discharging opening, the position of sidewall above the discharging opening of agitator, be provided with the cement hardener charging aperture, position placed in the middle in the agitator is provided with screw, and the middle part of screw is provided with scraper plate, agitator downward about 150mm suitable for reading position, in be provided with the screen pack bracing frame, bracing frame is provided with screen pack, scraper plate is on screen pack, in the upper end of screw, be connected with and turn to reductor.Mixer partly comprises by agitator, turns to reductor, scraper plate, screen pack and screw to form.Agitator is provided with emptying door, cement hardener charging aperture, screen pack bracing frame, the fixation clip of discharging opening, clear away waste.Discharging opening is arranged on the side of the bottom of agitator near barrel rim, the circular hole of severing, and discharging opening is a normally open.Sprayed mortar material in the agitator is fallen into the spiral propeller of horizontal positioned by deadweight to discharging opening by the screw scraping delivery after propeller agitation.Near a side of barrel rim, be 90 ° of angles with the discharging opening position at the bottom of emptying door is arranged on barrel, be a semicircle hole of severing, discharging opening is a normally off, only opens during waste material in the cleaning bucket.The opening and closing structure of emptying door such as following: with " door-plate " of the semicircular plate under the bucket undercut as this emptying door, welded top at " door-plate " goes out an arc surface, welding a round steel on this arc surface, as the axle of rotation, the top turning of this round steel goes out screw thread; Along the arc top mid point of emptying door, the steel plate of three middle borings of welding on ladle body is as the positioner of axis of rotation; When not needing cleaning, when emptying door is in closed condition, screw the degree of tightness nut on axis of rotation top, with the blowing door-plate promote be close to barrel at the bottom of; When the waste material in the needs cleaning bucket, unscrew the nut on axis of rotation top, the blowing door-plate is left barrel at the bottom of, and the blowing door-plate turned to a side, make waste material drop out staving from emptying door.The cement hardener charging aperture is meant the circular hole that staving one side is offered above discharging opening, is used for accepting cement and the accelerating admixture sent into from quantitative conveying worm; The cement hardener charging aperture is by forming at steel pipe of agitator outside welding and the flange on the steel pipe.The screen pack bracing frame along on the circumference of agitator downward about 15cm suitable for reading, with six bigger nuts, is welded on barrel inwall, is used for supporting screen pack; Pressing plate be welded on barrel at the bottom of and four block plates of agitator bracing frame opposite position, circular hole is arranged on the steel plate, be used for agitator is fixed on the bracing frame.Agitator integral body is cylinder-like structure, lower end one side of agitator is provided with emptying door, and opposite side is provided with discharging opening in the lower end of agitator, in the upper end of agitator slightly by under the position, be provided with the screen pack bracing frame, the screen pack bracing frame is provided with screen pack.One sidewall of agitator is provided with the cement hardener charging aperture, lower end at agitator is connected with pressing plate, and a sidewall of agitator is provided with the axis of rotation location-plate, and being provided with axis of rotation by the axis of rotation location-plate, the upper end of axis of rotation is provided with the degree of tightness nut.Screen pack is welded into two semicircle skeletons with round steel, welds wire gauze above the skeleton, carries on a shoulder pole on the screen pack bracing frame in agitator, and with iron wire itself and bracing frame is fixed.Its effect is bigger foreign material filterings such as stone in the whitewashing material that will be discharged in the bucket.The main component of screw is an axis, the upper end of axis is provided with spline housing, position placed in the middle on spline housing is provided with the screw fixed bolt hole, is used for screw is connected with the output shaft that turns to reductor, the lower end of axis, specifically be the middle and lower part at axis, be connected with blade, the blade outer end is connected with round steel, position in that the axis middle part is leaned on slightly is provided with the scraper plate fixing hole.As axis, the upper end welding spline housing of axle is connected with the reductor output spline that turns on the crossbeam screw, presses helix around axis and welds blade with thick-walled seamless steel pipes, and blade and axis are 30 ° inclination angle, and the outer end of blade connects with round steel.Scraper plate is semi-circular plates bigger slightly than propeller shaft external diameter, is extended outward straight plate less than the agitator radius as main body (steel plate or monoblock cast) along semi-circular plate by two centres; On its semicircle, hole,, itself and screw are connected as one, in the middle of these two main bodys, clamp two zigzag soft boards of making of conveyer belt by the hole on the screw axis.When screw rotated, scraper plate is rotation and then, scrapes in the agitator unloading the whitewashing material that drops on the screen pack.The plate body of scraper plate is provided with the soft board locating hole, by the soft board locating hole, can and be clamped in two soft boards between the scraper plate with two scraper plates and be fixed as one, on scraper plate, be used for the position placed in the middle, protruding part that is connected with axis, be provided with the locating hole that screw connects.Quantitatively conveying worm partly includes hopper, gear, charging aperture, quantitative conveying worm, flange and conveyer discharging opening.Quantitatively conveying worm is a main component, there are conveyer urceolus and helical axis to constitute, discharge port end at quantitative conveying worm is provided with the flange that connects usefulness, the other end at quantitative conveying worm, be provided with gear, be used for being connected with gears engaged on the driven shaft c, quantitatively the upper side wall of conveying worm urceolus is provided with charging aperture, is connected with hopper on the charging aperture.Above the urceolus of conveying worm, have two charging apertures, charging aperture can be adjusted the flow of cement or accelerating admixture by its area size of adjusting, is hopper on the charging aperture, and cement and accelerating admixture are housed respectively; The end that quantitative conveying worm is connected with agitator is a discharging opening, couples together by flange on the agitator and agitator, and cement and accelerating admixture are pressed the flow of setting, and it is sent in the agitator, mixes stirring with other whitewashing material.

Injection equipment partly includes quantitative conveying worm, material feeding casing, air inlet port b, unidirectional blower, air-flow material channel and air inlet port a.The air-flow material channel is the main component of injection equipment, is made up of material feeding casing and unidirectional blower.One end of air-flow material channel is provided with air inlet port a, top at the air-flow material channel, be connected with the material feeding casing, the material feeding casing is connected with quantitative conveying worm by flange, the other end at the air-flow material channel, be connected with unidirectional blower by flange, the top of unidirectional blower is provided with air inlet port b.Conveying worm includes helical axis, material receiving port, moving tooth, flange, fixation clip, spiral urceolus and helical blade.The spiral urceolus is the main component of quantitative conveying worm, integral body is cylinder-like structure, be provided with helical axis in the spiral urceolus, helical axis is provided with helical blade, the two ends of spiral urceolus are provided with the flange that connects usefulness, below the spiral urceolus, are provided with fixation clip, fixation clip is provided with bolt hole, is provided with moving tooth in an end of helical axis.Have material receiving port on the spiral urceolus, receive the whitewashing compound that flows out from agitator bottom discharge mouth; The spiral urceolus is fixed by bolts on the chassis by fixation clip.Helical axis includes axle, helical blade, one group of moving tooth (or scraper plate-refer to two blocks of symmetrical steel plates) and forms.Helical blade is welded on the axle, and length is identical with the outer tube inner chamber length of spiral, grows the one group of moving tooth (or two scraper plates) that is welded with symmetry on the spiral urceolus axle partly.The air-flow material channel includes air inlet port a, material feeding casing and unidirectional blower.Air-flow material channel integral body is cylinder-like structure.The tubing that the material receiving box body and function is identical with conveying worm spiral urceolus diameter processes.Length is longer slightly than the axle of welding moving tooth part on the helical axis.Couple together by flange and conveying worm urceolus.The air-flow material channel uses than material feeding box body diameter the tubing about half as large to process.The pipe of the part that will equate with the material receiving box body length prescinds half of circumference, then air-flow material channel and material feeding casing splice material is welded, and becomes one.The afterbody of air-flow material channel welds with steel plate, reserves the hole in the middle of the steel plate, and (air inlet port a) for the push-in air inlet plug of welding standard on this hole; The other end relative with afterbody is welded with a slice flange (being used for being connected with unidirectional blower), uniform 4 holes on the flange.Unidirectional blower includes air inlet main body, steel pipe, drive end bearing bracket, boss, groove, feeding-passage and air inlet port b.Be provided with groove (circular) in the air inlet main body, connect groove and be provided with air inlet port b, the center of groove is provided with boss, and the center of air inlet main body also is a feeding-passage, and the front of close air inlet main body is provided with drive end bearing bracket, is connected with steel pipe with the air inlet main body.The air inlet main body is formed by a cylindrical steel plate (or other metals and nonmetals) processing and fabricating, from the one side of this block plate, digs out a circumference type groove (air channel), and this groove does not penetrate steel plate.Along the groove inboard, extension processes a circumference boss, and the endoporus break-through steel plate of this boss is as feeding-passage; Uniform 4 through holes on this steel plate are used for being connected with air-flow material channel flange and unidirectional blower drive end bearing bracket.At a point avoiding flange hole of this steel plate cylindrical, drill through a hole (this hole communicates with the center of recess width) towards groove, as inlet channel; In the tapping of the outer end in this hole, install push-in intake interface (air inlet port b).Drive end bearing bracket is processed by a steel plate identical with air inlet main body external diameter.Heart position is processed with a through hole therein, and this through-hole diameter is than the big 2-3mm of boss external diameter on the main body, and boss exceeds about the about 5mm of this drive end bearing bracket after this drive end bearing bracket and main body link together; Uniform 4 through holes are used for being connected with main body on this drive end bearing bracket.In this drive end bearing bracket and the relative one side that main body connects, be welded with one section steel pipe about 50mm, be used for being connected with the sebific duct of whitewashing.After air inlet main body and drive end bearing bracket are connected as a single entity by bolt (or be welded as a whole processing after both), the compressed air that enters groove from air inlet port can only advance to a direction (in the sand blast rubber hose) along the gap between boss and drive end bearing bracket, and gunite material is sent sand blast rubber hose.Unidirectional blower in the injection equipment part is combined by two independent unidirectional blowers.The implementation of wet concrete sprayer of the present invention is as follows: 1, on-the-spot in whitewashing, equipment is connected water, gas and electricity.2, (refer to yellow sand, aggregate chips by workman's material of will whitewashing from the mine car.At present, most collieries all are on ground yellow sand and aggregate chips to be mixed the mine car of packing into to scale to be transported to the scene) be discharged into agitator with spades.3, cement and accelerating admixture are unloaded in the hopper that is respectively charged on the quantitative conveying worm from mine car.Because this patent emitted dose hourly is certain, according to yellow sand, the aggregate chips quantity of spraying, proportioning is according to the rules adjusted the delivery rate of quantitative conveying worm, and the proportioning that just guaranteeing whitewashes expects meets the requirement of setting.4, in pulp shooting machine when work, by the screw of rotation, drive the scraper plate that is fixed on it and will drop on the online whitewashing material of agitator inner filtration and scrape in the agitator, forces to stir with a cement, the accelerating admixture sent into from quantitative conveying worm in the bucket.Mixer part of the present invention belongs to forced action type and stirs, and therefore the homogeneity of the whitewashing material of process stirring can be guaranteed fully.5, in whipping process, the moisture situation according to sandstone sprays into an amount of water by watering device in agitator, guarantees to form moist shape through the mixing whitewashing material that stirs, and reduces airborne dust simultaneously.On-the-spot airborne dust source mainly is created in the process that pulp shooting machine is other and the shotcrete pipe front end sprays, the present invention adopts quantitative conveying worm to be sent cement, accelerating admixture to agitator, can reduce airborne dust to greatest extent, again according to the moisture situation of sand (rainy season, moisture content was high), by watering device suitable add a little water, make the other airborne dust of pulp shooting machine almost not have; Simultaneously, moist sand and the quantitative cement, the accelerating admixture that send given stir through forcing, and can be fused into the mixed material of dampness fully, and when strength was delivered to the shotcrete pipe front end, airborne dust is reduction greatly also.6, the discharging opening of the whitewashing material of mixing at the bottom of by agitator falls into the charging aperture of conveying worm of the horizontal positioned of injection equipment part.7, be pushed in the material feeding casing of air-flow material channel part through the helical axis of this conveying worm material of will whitewashing.8, the upset of the moving tooth in the material receiving box body again, the material of will whitewashing scrapes in the air-flow material channel.9, by the compressed air of air-flow material channel afterbody, the material of will whitewashing blowed unidirectional blower front.10, the compressed air that enters in compressed air that enters later through the air-flow material channel and the unidirectional blower is made a concerted effort, and the whitewashing material that enters in the shotcrete pipe is sent.Unidirectional blower is in normally open, as long as promptly open the source of the gas of controlling part, the compressed air that enters from unidirectional blower air inlet port promptly begins to supply gas in shotcrete pipe, make and be in negative pressure state in the shotcrete pipe, therefore no matter any period in the whitewashing process, all can reduce the phenomenon of plugging greatly.Also just because of the unidirectional structure of supplying gas of unidirectional blower, stopped to return the generation of gas phenomenon, the material that the pressure wind energy that could guarantee air-flow material channel afterbody will enter the air-flow material channel easily is blown into the front end of unidirectional blower by the feeding-passage on the unidirectional blower, thereby finishes spraying operation smoothly.11, at the shotcrete pipe front end, through with nozzle on water inlet pipe in current mixes, the whitewashing material of the thin pasty state of formation is sprayed to and is subjected to spray plane, finish spray operation.

Wet concrete sprayer of the present invention adopts damp formula to spray that (according to the regulation of MT/T547-2006 rotator type concrete sprayer standard the 3rd part: dry method is sprayed the compound water/binder ratio that fingering goes into rotor material chamber and is not more than 0.2; The tide formula is sprayed fingering and is gone into the compound water/binder ratio in rotor material chamber greater than 0.2; The wet shotcrete technology fingering is gone into the compound water/binder ratio in rotor material chamber greater than 0.4.), have following advantage: 1, integrate stirring, spray, volume is little, conveniently moving, applicability is wide; 2, with quantitative conveying worm supply cement, accelerating admixture, both solved the proportioning problem of whitewashing material, greatly reduce airborne dust again; 3, mixer partly belongs to the forced action type stirring, and spice is even, and the resilience material is low; 4, good seal performance, and watering device is arranged, the other airborne dust of machine sprays than dry method and reduces about 90%; 5, still use original powder accelerator, cost sprays not compare with dry method to be increased; 6, owing to adopted the unidirectional air-supply arrangement of particular design, greatly reduce the problem of plugging; 7, the complete machine expense reduces greatly than wet type spraying machine group, few easy workout part, and use cost also reduces greatly.

Description of drawings

Accompanying drawing 1 is the general assembly structural representation of wet concrete sprayer of the present invention; Accompanying drawing 2 is rack section, watering device part and the structural representation of controlling the part side-looking; Accompanying drawing 3 is side-looking structural representations of power section and running part; Accompanying drawing 4 is structural representations of mixer part side-looking; Accompanying drawing 5 is agitator axle geodesic structure schematic diagrames; Accompanying drawing 6 is structural representations that screen pack is overlooked; Accompanying drawing 7 is structural representations of screw side-looking; Accompanying drawing 8 is axle geodesic structure schematic diagrames of scraper plate; Accompanying drawing 9 is axle geodesic structure schematic diagrames of quantitative conveying worm; Accompanying drawing 10 is injection equipment part axle geodesic structure schematic diagrames; Accompanying drawing 11 is helical feed arbor geodesic structure schematic diagrames; Accompanying drawing 12 is axle geodesic structure schematic diagrames of air-flow material channel; Accompanying drawing 13 is structural representations that unidirectional blower is analysed and observe; Accompanying drawing 14 is axle geodesic structure schematic diagrames of unidirectional blower.1-rack section, 2-power section, 3-running part, 4-mixer part, 5-watering device part, 6-quantitatively conveying worm parts, 7-control part, 8-injection equipment part, 9-chassis, 10-engine reductor connecting plate, 11-column, 12-mixer reductor connecting plate, 13-crossbeam, 14-quantitatively helical feed frames, 15-unidirectional blower air feed interface, 16-motor button, 17-watering device control valve, 18-air-flow material channel air feed interface, 19-agitator bracing frame, 20-mine tram wheel pair, 21-power section, 22-middle driven shaft, 23-upper driven shaft, 24-chain, 25-side driven shaft, 26-gear, 27-sprocket wheel, 28-to wheel a, 29-driving shaft, 30-top chock, 31-to wheel b, 32-step, 33-driven gear, 34-lower driven shaft, 35-screen pack bracing frame, 36-turn to reductor, 37-scraper plate, 38-cement hardener charging aperture, 39-screen pack, 40-discharging opening, 41-agitator, 42-screw, 43-loosen nut, 44-rotating shaft, 45-rotating shaft location-plate, 46-emptying door, 47-pressing plate, 48-round steel, 49-scraper plate fixing hole, 50-screw set bolt, 51-spline housing, 52-axis, 53-blade, 54-soft board locating hole, 55-screw connects uses locating hole, 56-soft board, 57-hopper, 58-end tooth wheel, 59-charging aperture, 60-quantitatively conveying worms, 61-flange, 62-conveyer discharging opening, 63-air inlet b, 64-unidirectional blower, 65-air-flow material channel, 66-air inlet a, 67-helical axis, 68-material receiving port, 69-moving tooth, 70-fixation clip, 71-spiral urceolus, 72-helical blade, 73-material feeding casing, 74-air inlet main body, 75-steel pipe, 76-drive end bearing bracket, 77-boss, 78-groove, 79-feeding-passage.

The specific embodiment

Referring now to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, accompanying drawing 8, accompanying drawing 9, accompanying drawing 10, accompanying drawing 11, accompanying drawing 12, accompanying drawing 13 and accompanying drawing 14, be described as follows in conjunction with the embodiments: wet concrete sprayer of the present invention, include eight major parts, be respectively: rack section 1, power section 2, running part 3, mixer part 4, watering device part 5, quantitatively conveying worm part 6, control part 7 and injection equipment part 8.Rack section 1 is the body supports part of wet concrete sprayer of the present invention, integral body is frame construction, be provided with the mine tram wheel that contacts with track below the rack section 1 to 20, the position top placed in the middle of rack section 1, be provided with mixer part 4, include the reductor parts of mixer, side at the reductor parts is provided with watering device part 5, the position that is connected with the reductor parts, be provided with running part 3, on an end of rack section 1, be connected with running part 3, be provided with power section 2.On the other end of rack section 1, be provided with quantitative conveying worm part 6, the side in quantitative conveying worm part 6 is provided with and controls part 7.Below the agitator 41 of mixer part 4, be provided with injection equipment part 8.Rack section 1 includes chassis 9, engine reductor junction plate 10, column 11, mixer reductor junction plate 12, watering device 5, crossbeam 13, quantitative helical feed frame 14, unidirectional blower air feed interface 15, controls part 7 panels, motor button 16, watering device control valve 17, air-flow material channel air feed interface 18, agitator bracing frame 19 and mine tram wheel to 20.Form support by four root posts 11 and two crossbeams 13; Agitator bracing frame 19 is four short columns that are welded on the chassis 9, is welded with flat board on the top of said four short columns, and agitator 41 is placed on the flat board, and by bolt agitator 41 is fixed on the flat board; Quantitatively helical feed frame 14 is by forming by two tripods that are bolted on the column 11, and quantitatively conveying worm is fixed on the quantitative helical feed frame 14; The reductor junction plate is that two block plates are arranged, be welded on respectively on crossbeam 13 and the column 11, be used for fixing the reductor of power section and the reductor of mixer part respectively, the steel plate that is arranged on the crossbeam 13 is the mixer reductor junction plate 12 of mixer part, being arranged on the steel plate of column 11 sides, is the engine reductor junction plate 10 of power section.Watering device 5 includes a high-pressure rubber pipe and a spraying joint.Control part 7 and include control panel, motor button 16, watering device control valve 17, air-flow material channel air feed interface 18 and total air inlet port.Motor button 16 is arranged on to be controlled on part 7 panels, near motor button 16, be provided with watering device control valve 17, side at watering device control valve 17, be provided with air-flow material channel air feed interface 18, the upper end of air-flow material channel air feed interface 18 is connected with total air inlet port and unidirectional blower air feed interface 15 with the form of tee junction.Power section 2 is made up of a motor and reductor.The below of motor is connected with a reductor, to increase moment of torsion; Power section 2 is fixed in the middle of two root posts 11 of frame one end.The power output shaft of power section 2 is driving shafts 29, the outer end of driving shaft 29 is provided with the top chock 30 that supports usefulness, driving shaft 29 is connected to driven shaft a22 by transmission device (sprocket wheel, chain), the end of driven shaft a22 is provided with wheel a28, driven shaft a22 is connected to the end of driven shaft b23 by transmission device (chain, sprocket wheel), the other end of driven shaft b23 is connected to the sprocket wheel 27 of driven shaft c25 end again by driving chain 24, the other end of driven shaft c25 is provided with gear 26.Driving shaft 29 is provided with driving gear, and driven shaft d34 is provided with driven gear 33, and driving shaft 29 connects driving driven shaft d34 with the form of gears engaged, and driven shaft d34 is supported on the step 32, and the other end of driven shaft d34 is provided with wheel b31.Driving shaft 29 is installed on two root posts identical with the stationary power part, and is by the bearing support 30 that is erected on two root posts that driving shaft 29 is fixing; 1 sprocket wheel, a gear wheel are arranged on the driving shaft 29.Driving shaft 29 is connected with the speed reducer output shaft hole of power section.Axle above the driving shaft 29 be driven shaft a22, driven shaft a22 be installed in stationary power two identical root posts partly on, by the bearing support that is erected on two root posts driven shaft a22 is fixed; Respectively there is a sprocket wheel at two ends on the driven shaft b23; The power shaft that turns to reductor on driven shaft a22 and the mixer is by being connected wheel a28, and driving shaft 29 passes through chain with driven shaft a22, sprocket wheel links, and when motor rotates, is that mixer is imported power.Axle below the driving shaft 29 is driven shaft d34, and driven shaft d34 is installed in below the agitator 41, by two bearing supports driven shaft d34 is erected on the chassis 9; A pinion is arranged above the driven shaft d34, and the helical axis of the conveying worm that driven shaft d34 and horizontal cross are placed is by being connected taking turns b31; Driven shaft d34 and driving shaft 29 couple together by gear meshing, can certainly take turns connection by sprocket wheel, and when motor rotated, the conveying worm of placing for horizontal cross provided power; Helical axis afterbody and driven shaft d34 are by being connected wheel b31.Axle above the driven shaft a22 be driven shaft b23, and driven shaft b23 is erected at stationary power two root posts partly and the top of other two root posts by bearing support, and respectively there is a sprocket wheel at driven shaft b23 two; Driven shaft a22 and driven shaft b23 link by the sprocket wheel chain; When rotating under the driving of driven shaft a22 at motor, b23 provides rotary power for driven shaft.One of driven shaft c25 is installed in the bearing support on other two root posts relative with the two identical root posts of stationary power part, and the other end is installed in the bearing support on the three-legged supporting frame of the conveying worm that sets up quantitative conveying cement, accelerating admixture.A sprocket wheel and a gear are arranged above the driven shaft c25, driven shaft b23 and driven shaft c25 are linked, when driven shaft b23 rotates, provide power simultaneously for driven shaft c25 by chain 24; When driven shaft c25 rotated, the quantitatively work of conveying cement hardener in agitator was finished in the gear rotation on the helical axis of the conveying worm of the quantitative conveying of the gears engaged drive cement hardener on the driven shaft c25.One of main body of mixer part 4 is an agitator 41, agitator 41 is arranged on the agitator bracing frame 19, lower end one side of agitator 41, be provided with discharging opening 40, the position of sidewall above the discharging opening 40 of agitator 41, be provided with cement hardener charging aperture 38, position placed in the middle in the agitator 41 is provided with screw 42, and the middle part of screw 42 is provided with scraper plate 37, agitator 41 downward about 150mm suitable for reading positions, in be provided with screen pack bracing frame 35, screen pack bracing frame 35 is provided with screen pack 39, scraper plate 37 is on screen pack 39, in the upper end of screw 42, be connected with and turn to reductor 36.Mixer part 4 comprises by agitator 41, turns to reductor 36, scraper plate 37, screen pack 39 and screw 42 to form.Agitator 41 is provided with emptying door, cement hardener charging aperture 38, screen pack bracing frame 35 and the pressing plate 47 of discharging opening 40, clear away waste.Discharging opening 40 is arranged on the side of the bottom of agitator 41 near barrel rim, the circular hole of severing, and discharging opening 40 is a normally open.Sprayed mortar material in the agitator 41 is fallen into the spiral propeller of horizontal positioned by deadweight to discharging opening 40 by screw 42 scraping deliveries after screw 42 stirs.Near a side of barrel rim, be 90 ° of angles with discharging opening 40 positions at the bottom of emptying door is arranged on barrel, be a semicircle hole of severing, discharging opening 40 is a normally off, only opens during waste material in the cleaning bucket.The opening and closing structure of emptying door such as following: with " door-plate " of the semicircular plate under the bucket undercut as this emptying door, welded top at " door-plate " goes out an arc surface, welding a round steel on this arc surface, as the axle of rotation, the top turning of this round steel goes out screw thread; Along the arc top mid point of emptying door, the steel plate of three middle borings of welding on ladle body is as the positioner of axis of rotation; When not needing cleaning, when emptying door is in closed condition, screw the degree of tightness nut on axis of rotation top, with the blowing door-plate promote be close to barrel at the bottom of; When the waste material in the needs cleaning bucket, unscrew the nut on axis of rotation top, the blowing door-plate is left barrel at the bottom of, and the blowing door-plate turned to a side, make waste material drop out staving from emptying door.Cement hardener charging aperture 38 is meant the circular hole that staving one side is offered above discharging opening, is used for accepting cement and the accelerating admixture sent into from quantitative conveying worm; Cement hardener charging aperture 38 is by forming at steel pipe of agitator 41 outsides welding and the flange on the steel pipe.Screen pack bracing frame 35 along on the circumference of agitator 41 downward about 15cm suitable for reading, with six bigger nuts, is welded on barrel inwall, is used for supporting screen pack 39; Pressing plate 48 has circular hole at the bottom of being welded on barrel and four block plates of agitator bracing frame 19 opposite positions on the steel plate, be used for agitator 41 is fixed on the bracing frame.Agitator 41 integral body are cylinder-like structure, lower end one side of agitator 41 is provided with emptying door, and opposite side is provided with discharging opening 40 in the lower end of agitator 41, in the upper end of agitator 41 slightly by under the position, be provided with screen pack bracing frame 35, screen pack bracing frame 35 is provided with screen pack 39.One sidewall of agitator 41 is provided with cement hardener charging aperture 38, lower end at agitator 41, be connected with pressing plate 48, one sidewall of agitator 41 is provided with axis of rotation location-plate 45, and being provided with axis of rotation 44 by axis of rotation location-plate 45, the upper end of axis of rotation 44 is provided with degree of tightness nut 43.Screen pack 39 usefulness round steel are welded into two semicircle skeletons, weld wire gauze above the skeleton, carry on a shoulder pole on the screen pack bracing frame 35 in agitator 41, and with iron wire itself and bracing frame are fixed.Its effect is bigger foreign material filterings such as stone in the whitewashing material that will be discharged in the bucket.The main component of screw 42 is axis 52, the upper end of axis 52 is provided with spline housing 51, position placed in the middle on spline housing 51 is provided with screw fixed bolt hole 50, is used for screw 42 is connected with the output shaft that turns to reductor 36, the lower end of axis 52, specifically be in the middle and lower part of axis 52, be connected with blade 53, blade 53 outer ends are connected with round steel 48, position in that axis 52 middle parts are leaned on slightly is provided with scraper plate fixing hole 49.Screw 42 usefulness thick-walled seamless steel pipes are as axis 52, the upper end welding spline housing 51 of axle is connected with reductor 36 output splines that turn on the crossbeam 13, and presses helix around axis 52 and welds blade 53, blade 53 is 30 ° inclination angle with axis 52, and the outer end of blade 53 connects with round steel 48.Scraper plate 37 is semi-circular plates bigger slightly than propeller shaft external diameter, is extended outward straight plate less than the agitator radius as main body (steel plate or monoblock cast) along semi-circular plate by two centres; On its semicircle, hole,, itself and screw 42 are connected as one, in the middle of these two main bodys, clamp two zigzag soft boards of making of conveyer belt by the hole on the screw axis 52.When screw 42 rotations, and then rotation of scraper plate 37 scrapes in the agitator 41 unloading the whitewashing material that drops on the screen pack 39.The plate body of scraper plate 37 is provided with soft board locating hole 54, by soft board locating hole 54, can and be clamped in two soft boards 56 between the scraper plate 37 with two scraper plates 37 is fixed as one, on scraper plate 37, be used for the position placed in the middle, protruding part that is connected with axis 52, be provided with screw and connect with locating hole 55.Quantitatively conveying worm part 6 includes hopper 57, gear 58, charging aperture 59, quantitative conveying worm 60, flange 61 and conveyer discharging opening 62.Quantitatively conveying worm 60 is main components, there are conveyer urceolus and helical axis to constitute, conveyer discharging opening 62 ends at quantitative conveying worm 60 are provided with the flange 61 that connects usefulness, the other end at quantitative conveying worm 60, be provided with gear 58, be used for being connected with gears engaged on the driven shaft c25, quantitatively the upper side wall of conveying worm 60 urceolus is provided with charging aperture 59, is connected with hopper 57 on the charging aperture 59.Quantitatively above the urceolus of conveying worm 60, have two charging apertures 59, charging aperture 59 can be adjusted the flow of cement or accelerating admixture by its area size of adjusting, is hopper 57 on the charging aperture 59, and cement and accelerating admixture are housed respectively; The end that quantitative conveying worm 60 is connected with agitator 41 is a discharging opening 62, couples together by flange on the agitator 41 and agitator, and cement and accelerating admixture are pressed the flow of setting, and it is sent in the agitator 41, mixes stirring with other whitewashing material.

Injection equipment part 8 includes quantitative conveying worm 60, material feeding casing 73, air inlet port b63, unidirectional blower 64, air-flow material channel 65 and air inlet port a66.Air-flow material channel 65 is main components of injection equipment, by accepting casing 73 and unidirectional blower 64 is formed.One end of air-flow material channel 65 is provided with air inlet port a66, top at air-flow material channel 65, be connected with material feeding casing 73, material feeding casing 73 is connected with quantitative conveying worm 60 by flange, the other end at air-flow material channel 65, be connected with unidirectional blower 64 by flange, the top of unidirectional blower 64 is provided with air inlet port b63.Quantitatively conveying worm 60 includes helical axis 67, material receiving port 68, moving tooth 69, flange, fixation clip 70, spiral urceolus 71 and helical blade 72.Spiral urceolus 71 is main components of quantitative conveying worm 60, integral body is cylinder-like structure, be provided with helical axis in the spiral urceolus, helical axis is provided with helical blade, the two ends of spiral urceolus are provided with the flange that connects usefulness, below the spiral urceolus, are provided with fixation clip 70, fixation clip 70 is provided with bolt hole, is provided with moving tooth 69 in an end of helical axis 67.Have material receiving port 68 on the spiral urceolus 71, receive the whitewashing compound that flows out from agitator bottom discharge mouth 40; Spiral urceolus 71 is fixed by bolts on the chassis by fixation clip 70.Helical axis 67 includes axle, helical blade 72, one group of moving tooth (or scraper plate-refer to two blocks of symmetrical steel plates) and forms.Helical blade 72 is welded on the axle, and length is identical with cavity length in the spiral urceolus 71, grows one group of moving tooth 69(or two scraper plates of being welded with symmetry on the spiral urceolus axle partly).Air-flow material channel 65 includes air inlet port a66, material feeding casing 73 and unidirectional blower 64.Air-flow material channel 65 integral body are cylinder-like structure.The tubing that material feeding casing 73 usefulness are identical with conveying worm spiral urceolus diameter processes.Length is longer slightly than the axle of welding moving tooth part on the helical axis 67.Couple together by flange and conveying worm urceolus.Air-flow material channel 65 uses than material feeding casing 73 diameters the tubing about half as large to process.Will with the pipe of the part of material feeding casing 73 equal in length, prescind half of circumference, then air-flow material channel 65 and material feeding casing 73 are added sheet material and weld, become one.The afterbody of air-flow material channel 65 welds with steel plate, reserves the hole, the push-in air inlet plug (air inlet port a66) of welding standard on this hole in the middle of the steel plate; The other end relative with afterbody is welded with a slice flange (being used for being connected with unidirectional blower), uniform 4 holes on the flange.Unidirectional blower includes air inlet main body 74, steel pipe 75, drive end bearing bracket 76, boss 77, groove 78, feeding-passage 79 and air inlet port b63.Be provided with groove 78 (circular) in the air inlet main body 74, connect groove 78 and be provided with air inlet port b63, the center of groove 78 is provided with boss 77, the center of air inlet main body 74 also is a feeding-passage 79, front near air inlet main body 74 is provided with drive end bearing bracket 76, is connected with steel pipe 75 with air inlet main body 74.Air inlet main body 74 is formed by a cylindrical steel plate (or other metals and nonmetals) processing and fabricating, from the one side of this block plate, digs out a circumference type groove (air channel), and this groove does not penetrate steel plate.Along groove 78 inboards, extension processes a circumference boss 77, and the endoporus break-through steel plate of this boss 77 is as feeding-passage 79; Uniform 4 through holes on this steel plate are used for being connected with air-flow material channel flange and unidirectional blower drive end bearing bracket 76.At a point avoiding flange hole of this steel plate cylindrical, drill through a hole (this hole communicates with the center of recess width) towards groove, as inlet channel; In the tapping of the outer end in this hole, install push-in intake interface (air inlet port b63).Drive end bearing bracket 76 is processed by a steel plate identical with air inlet main body 74 external diameters.Heart position is processed with a through hole therein, and this through-hole diameter is than the big 2-3mm of boss external diameter on the main body, and boss exceeds about the about 5mm of this drive end bearing bracket after this drive end bearing bracket and main body link together; Uniform 4 through holes are used for being connected with main body on this drive end bearing bracket.In this drive end bearing bracket and the relative one side that main body connects, be welded with one section steel pipe about 50mm, be used for being connected with the sebific duct of whitewashing.After air inlet main body 74 and drive end bearing bracket 76 are connected as a single entity by bolt (or be welded as a whole processing after both), the compressed air that enters groove from air inlet port can only advance to a direction (in the sand blast rubber hose) along the gap between boss and drive end bearing bracket, and gunite material is sent sand blast rubber hose.Unidirectional blower 64 in the injection equipment part is combined by two independent unidirectional blowers.The implementation of wet concrete sprayer of the present invention is as follows: 1, on-the-spot in whitewashing, equipment is connected water, gas and electricity.2, (refer to yellow sand, aggregate chips by workman's material of will whitewashing from the mine car.At present, most collieries all are on ground yellow sand and aggregate chips to be mixed the mine car of packing into to scale to be transported to the scene) be discharged into agitator with spades.3, cement and accelerating admixture are unloaded in the hopper that is respectively charged on the quantitative conveying worm from mine car.Because this patent emitted dose hourly is certain, according to yellow sand, the aggregate chips quantity of spraying, proportioning is according to the rules adjusted the delivery rate of quantitative conveying worm, and the proportioning that just guaranteeing whitewashes expects meets the requirement of setting.4, in pulp shooting machine when work, by the screw of rotation, drive the scraper plate that is fixed on it and will drop on the online whitewashing material of agitator inner filtration and scrape in the agitator, forces to stir with a cement, the accelerating admixture sent into from quantitative conveying worm in the bucket.Mixer part of the present invention belongs to forced action type and stirs, and therefore the homogeneity of the whitewashing material of process stirring can be guaranteed fully.5, in whipping process, the moisture situation according to sandstone sprays into an amount of water by watering device in agitator, guarantees to form moist shape through the mixing whitewashing material that stirs, and reduces airborne dust simultaneously.On-the-spot airborne dust source mainly is created in the process that pulp shooting machine is other and the shotcrete pipe front end sprays, the present invention adopts quantitative conveying worm to be sent cement, accelerating admixture to agitator, can reduce airborne dust to greatest extent, again according to the moisture situation of sand (rainy season, moisture content was high), by watering device suitable add a little water, make the other airborne dust of pulp shooting machine almost not have; Simultaneously, moist sand and the quantitative cement, the accelerating admixture that send given stir through forcing, and can be fused into the mixed material of dampness fully, and when strength was delivered to the shotcrete pipe front end, airborne dust is reduction greatly also.6, the discharging opening of the whitewashing material of mixing at the bottom of by agitator falls into the charging aperture of conveying worm of the horizontal positioned of injection equipment part.7, be pushed in the material feeding casing of air-flow material channel part through the helical axis of this conveying worm material of will whitewashing.8, the upset of the moving tooth in the material receiving box body again, the material of will whitewashing scrapes in the air-flow material channel.9, by the compressed air of air-flow material channel afterbody, the material of will whitewashing blowed unidirectional blower front.10, the compressed air that enters in compressed air that enters later through the air-flow material channel and the unidirectional blower is made a concerted effort, and the whitewashing material that enters in the shotcrete pipe is sent.Unidirectional blower is in normally open, as long as promptly open the source of the gas of controlling part, the compressed air that enters from unidirectional blower air inlet port promptly begins to supply gas in shotcrete pipe, make and be in negative pressure state in the shotcrete pipe, therefore no matter any period in the whitewashing process, all can reduce the phenomenon of plugging greatly.Also just because of the unidirectional structure of supplying gas of unidirectional blower, stopped to return the generation of gas phenomenon, the material that the pressure wind energy that could guarantee air-flow material channel afterbody will enter the air-flow material channel easily is blown into the front end of unidirectional blower by the feeding-passage on the unidirectional blower, thereby finishes spraying operation smoothly.11, at the shotcrete pipe front end, through with nozzle on water inlet pipe in current mixes, the whitewashing material of the thin pasty state of formation is sprayed to and is subjected to spray plane, finish spray operation.Wet concrete sprayer of the present invention adopts damp formula to spray that (according to the regulation of MT/T547-2006 rotator type concrete sprayer standard the 3rd part: dry method is sprayed the compound water/binder ratio that fingering goes into rotor material chamber and is not more than 0.2; The tide formula is sprayed fingering and is gone into the compound water/binder ratio in rotor material chamber greater than 0.2; The wet shotcrete technology fingering is gone into the compound water/binder ratio in rotor material chamber greater than 0.4.), have following advantage: 1, integrate stirring, spray, volume is little, conveniently moving, applicability is wide; 2, with quantitative conveying worm supply cement, accelerating admixture, both solved the proportioning problem of whitewashing material, greatly reduce airborne dust again; 3, mixer partly belongs to the forced action type stirring, and spice is even, and the resilience material is low; 4, good seal performance, and watering device is arranged, the other airborne dust of machine sprays than dry method and reduces about 90%; 5, still use original powder accelerator, cost sprays not compare with dry method to be increased; 6, owing to adopted the unidirectional air-supply arrangement of particular design, greatly reduce the problem of plugging; 7, the complete machine expense reduces greatly than wet type spraying machine group, few easy workout part, and use cost also reduces greatly.

Claims

1. wet concrete sprayer, include rack section (1), power section (2), running part (3), mixer part (4), watering device part (5), quantitative conveying worm part (6), control part (7) and injection equipment part (8), rack section (1) is the body supports part, integral body is frame construction, it is characterized in that rack section (1) below be provided with the mine tram wheel that contacts with track to (20), the position top placed in the middle of rack section (1), be provided with mixer part (4), include the reductor parts of mixer, side at the reductor parts is provided with watering device part (5), the position that is connected with the reductor parts, be provided with running part (3), on an end of rack section (1), be connected with running part (3), be provided with power section (2); On the other end of rack section (1), be provided with quantitative conveying worm part (6), in a side of quantitative conveying worm part (6), be provided with and control part (7).

2. according to the described wet concrete sprayer of claim 1, it is characterized in that below the agitator (41) of mixer part (4), being provided with injection equipment part (8); There are four root posts (11) and two crossbeams (13) to form support; Agitator bracing frame (19) is four short columns that are welded on the chassis (9), is welded with flat board on the top of said four short columns, and agitator (41) is placed on the flat board, and by bolt agitator (41) is fixed on the flat board; Quantitatively helical feed frame (14) is by forming by two tripods that are bolted on the column (11), and quantitatively conveying worm is fixed on the quantitative helical feed frame (14); The reductor junction plate is that two block plates are arranged, be welded on respectively on crossbeam (13) and the column (11), be used for fixing the reductor of power section and the reductor of mixer part respectively, the steel plate that is arranged on the crossbeam (13) is the mixer reductor junction plate (12) of mixer part, being arranged on the steel plate of column (11) side, is the engine reductor junction plate (10) of power section.

3. wet concrete sprayer according to claim 1, it is characterized in that motor button (16) be arranged on control the part (7) panel on, near motor button (16), be provided with watering device control valve (17), side at watering device control valve (17), be provided with air-flow material channel air feed interface (18), the upper end of air-flow material channel air feed interface (18) is connected with total air inlet port and unidirectional blower air feed interface (15) with the form of tee junction.

4. wet concrete sprayer according to claim 1, the power output shaft that it is characterized in that power section (2) is driving shaft (29), the outer end of driving shaft (29) is provided with the top chock (30) that supports usefulness, driving shaft (29) is connected to driven shaft a(22 by transmission device), driven shaft a(22) a end is provided with wheel a(28), driven shaft a(22) be connected to driven shaft b(23 by transmission device) an end, driven shaft b(23) the other end is connected to driven shaft c(25 by driving chain (24) again) end sprocket wheel (27), driven shaft c(25) the other end be provided with gear (26); Driving shaft (29) is provided with driving gear, driven shaft d(34) is provided with driven gear (33), driving shaft (29) connects driving driven shaft d(34 with the form of gears engaged), driven shaft d(34) be supported on the step (32) driven shaft d(34) the other end be provided with to the wheel b(31); Driving shaft (29) is installed on two root posts identical with the stationary power part, and is by the bearing support (30) that is erected on two root posts that driving shaft (29) is fixing.

5. wet concrete sprayer according to claim 1 is characterized in that driven shaft b(23) on two ends a sprocket wheel is respectively arranged; Driven shaft a(22) with mixer on the power shaft that turns to reductor by to wheel a(28) is connected driving shaft (29) and driven shaft a(22) pass through chain, sprocket wheel links, and when motor rotates, is that mixer is imported power.

6. wet concrete sprayer according to claim 1, it is characterized in that agitator (41) is arranged on the agitator bracing frame (19), lower end one side of agitator (41), be provided with discharging opening (40), position at discharging opening (40) top of agitator (41) sidewall, be provided with cement hardener charging aperture (38), position placed in the middle in the agitator (41), be provided with screw (42), the middle part of screw (42) is provided with scraper plate (37), agitator (41) downward about 150mm suitable for reading position, in be provided with screen pack bracing frame (35), screen pack bracing frame (35) is provided with screen pack (39), scraper plate (37) is on screen pack (39), upper end in screw (42) is connected with and turns to reductor (36).

7. wet concrete sprayer according to claim 1, the main component that it is characterized in that screw (42) is axis (52), the upper end of axis (52) is provided with spline housing (51), go up position placed in the middle at spline housing (51), be provided with screw fixed bolt hole (50), be used for screw (42) is connected with the output shaft that turns to reductor (36), the lower end of axis (52), it specifically is middle and lower part in axis (52), be connected with blade (53), blade (53) outer end is connected with round steel (48), slightly by last position, is provided with scraper plate fixing hole (49) at axis (52) middle part.

8. wet concrete sprayer according to claim 1, the plate body that it is characterized in that scraper plate (37) is provided with soft board locating hole (54), by soft board locating hole (54), two scraper plates (37) and the soft board (56) that is clamped between two scraper plates (37) can be fixed as one, on scraper plate (37), be used for the position placed in the middle, protruding part that is connected with axis (52), be provided with screw and connect with locating hole (55).

9. wet concrete sprayer according to claim 1, it is characterized in that the flange (61) that connects usefulness being set at conveyer discharging opening (62) end of quantitative conveying worm (60), the other end at quantitative conveying worm (60), be provided with gear (58), be used for and driven shaft c(25) on gears engaged be connected, quantitatively the upper side wall of conveying worm (60) urceolus is provided with charging aperture (59), is connected with hopper (57) on the charging aperture (59).

10. wet concrete sprayer according to claim 1, an end that it is characterized in that air-flow material channel (65) is provided with air inlet port a(66), top in air-flow material channel (65), be connected with material feeding casing (73), material feeding casing (73) is connected with quantitative conveying worm (60) by flange, the other end in air-flow material channel (65), be connected with unidirectional blower (64) by flange, the top of unidirectional blower (64) is provided with air inlet port b(63).