CN103216248B

CN103216248B - Wet type shotcrete machine

Info

Publication number: CN103216248B
Application number: CN201310149416.5A
Authority: CN
Inventors: 胡方志
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-26
Filing date: 2013-04-26
Publication date: 2014-11-19
Anticipated expiration: 2033-04-26
Also published as: CN103216248A

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 for power, the material (a certain proportion of sand, aggregate chips, cement) that mixes and stirs mixing is by a certain percentage transported to and is subject to setting and harden on spray plane by pipeline, thereby form concrete supporting.Concrete-spraying technology technique is simple, and construction cost is low, widely applicable, has 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, in other words two stages.Set forth respectively below:

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

Abroad, nineteen forty-seven, Germany BSM company, 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), the various dry type concrete spraying machines such as HLP-701 type (Coal Mining Research Institute).Up till now, the whole nation has upper hundred producers that produce dry type concrete spraying machine especially.

Dry type concrete spraying machine, the overwhelming majority is rotator type.Its operating principle and architectural feature are: the rotor with liner plate rotates with certain rotating speed, board is pressed on liner plate and maintains static, on board, be connected with blast pipe and discharging elbow, when being housed in rotor, each material cup of compound turns to while communicating with blast pipe and discharging elbow, under compressed-air actuated effect, compound is transported to nozzle place by discharging elbow and conveying pipeline (general 60 meters of left and right), and the mixing jetting that adds water at nozzle place is gone out.In this process, the sealing surface being made up of board and liner plate has played the effect of seal compression air and compound (the especially powdered cement in 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 lightweight; Easy to operate; Jet length is long.Shortcoming is because it uses dry type spice, and compound is delivered to nozzle place by pneumatic transporting and just mixed with water, so construction dust is large, especially, in narrow roadway construction, dust pollution is even more serious; Resilience (compound and the combination rate that is subject to spray plane) height, waste of material is serious; A liner plate board quick abrasion, accessory cost is high; Each shift needs to clear up the compound coagulation in pulp shooting machine, and an individual demand dismounting and cleaning 2-3 hour, cost of labor was high.

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

From the sixties, at western developed country, wet-spray technique starts to carry out gradually, also developing successively of various wet spraying machines.So-called wet shot, its general principle is that the finished product concrete being stirred adding water adds Wet-type patching machine, is delivered to nozzle place, forms and expect to restraint to be sprayed onto to be subject to spray plane after admixture accelerating admixture.At present, in some western countries, wet concrete sprayer becomes main sprayed mortar work tool gradually.

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

Country	Wet shot (%)	Dry 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 is high.Dry type wet concrete sprayer is generally no more than 5m3/h, and uses wet concrete sprayer, can reach 10 m3/h when manual work, if adopt manipulator operation, can reach 20m3/h.(3) rebound degree is low.When dry spray, concrete springback rate can reach 15%-50%.Adopt wet-spray technique, rebound degree can be reduced to below 10%.(4), when wet shot, because water/binder ratio is easy to control, concrete hydrating degree is high, admittedly can greatly improve the quality of sprayed mortar, improves concrete homogeneity.And do while spray, concrete water/binder ratio is have the hand of injection rule of thumb and visually observe to regulate, whether concrete quality depends on to a great extent sprays the operating experience of hand and operates 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 the large class of air-driven type two.Pumping type is divided into following several: 1, plunger displacement pump formula wet-spraying machine: this wet-spraying machine is the basic body using plunger type concrete pump as wet type wet concrete sprayer, fill with nozzle in carrier pipe outlet, and pass into compressed air at this, concrete is ejected.This class wet-spraying machine is generally heavier, but fed distance is long.What in some large hydraulic engineerings such as two beaches, Xiao Langdi, use is exactly this, as the Robojet041 type concrete sprayer of MEYNADIER company of Switzerland.2, screw pump wet-spraying machine: this wet-spraying machine is to carry out convey materials with screw rod and the mutual variation that connects the volume in space, angle when meshing of nail sleeve.Such wet-spraying machine has the SB-3 type of German UELMAT company.Units concerned of China 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 sleeve are more serious, so range of application is little.3, hose squeezing pump formula wet-spraying machine: this wet-spraying machine is made up of parts such as stirring bucket, pumping flexible pipe, the pump housing and conveying pipeline.The pump housing is cylindrical shape, and middle deployment trip star drive mechanism drives two roller transmissions, and the wet feed in continuously extruded pumping line, makes it to enter conveying pipeline force feed and go out.The extremely eastern PC08-60M type of Japan and CHALLENGE type concrete spraying machine belong to this type of wet-spraying machine.According to report, this spraying machine abroad once application is wider, but from recent years domestic introduction situation, seldom uses, and subject matter is that the extruded tube life-span is short.

Pneumatic transmission type is divided into following several: 1, two tank side-by-side wet-spraying machines: this class wet-spraying machine is to utilize compressed air that material is delivered to nozzle with the form of " thin stream " by material in flexible pipe directly to spray.Such as Britain COMPERNASS-208 type wet-spraying machine, this machine two tanks side by side, an injection, gets the raw materials ready for one.The helical conveyor of an accumbency is respectively arranged at the bottom of tank, passes into compressed air in spray tank, and wet mix is sent conveying pipeline to through spiral, and at nozzle place, the compressed air of introducing by compression ring will mix and stir material and eject.The shortcoming of this wet-spraying machine is cumbersome to ladle addition, and the cleaning of tank is also inconvenient.2, the stacked wet-spraying machine of two tanks: this wet-spraying machine is to erect two stacked tanks, upper tank spice, lower tank sprays.Upper and lower tank all has sealed valve, alternately opens closure, to realize continuous injection.Lower pot bottom has an accumbency spiral, drives wet mix in pipe, to eject to expecting.The shortcoming of this wet-spraying machine is that material loading height is large, heavier.3, rotator type wet-spraying machine: this wet-spraying machine is rotor structure, adopts fluid pressure drive device, and load variation pump rotates by hydraulic motor rotor driven, and rotating speed is adjustable, thereby makes emitted dose adjustable.Wet mix when work in hopper falls into rotor material hole, after Rotate 180 °, material hole communicates with compressed air air inlet, and wet mix is satisfied with suspended state by force feed to discharge nozzle, after fully mixing fast with liquid accelerator at nozzle mixing chamber, from nozzle ejection at a high speed.For example Switzerland A Liwa 280 type wet-spraying machines, the shortcoming of this machine is that equipment investment is high, and maintenance workload is large, and it is many that deadweight reaches 2t, and mobility is also 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 along with the enhancing of people's environmental consciousness and the raising to sprayed mortar quality requirement, there is increasing wet type wet concrete sprayer to come into operation.In the large hydraulic engineering of some international biddings, as two power stations, beach, Xiaolangdi Project On The Yellow River, Three Gorges Projects etc., all adopt Wet-type concrete spraying operation.The various wet concrete sprayers of domestic current use are the equipment from external introduction mostly.In recent years, more domestic units also start 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 rotor type wet concrete spraying machine 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 reductor driven rotary.This equipment investment is few, and production efficiency is high, lightweight, and mobility is good.SPZ-6 type wet concrete sprayer has carried out industrial experiment in Beijing urban construction large willow building site and Gansu Jinchuan Nonferrous Metal Co. respectively, obtain 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 enclosed rotor piston type wet-spraying machine that southwest branch of railway research institute develops in recent years.This machine utilizes one group of piston that wet mix is pushed to the mixing chamber into top, after mixing with air, is transported to nozzle by flexible pipe, after nozzle place admixture accelerating admixture, sprays.The major advantage of this machine is to clap and put without residual air, and feeding continuity is good.It is reported, this equipment, at the Baoji-Chengdu Railway, is applied in the engineerings such as the long speedway in Chongqing.And gain the national patent (patent No. ZL9232716.5).3, vane type wet concrete sprayer: vane type wet concrete sprayer is a kind of wet-spraying machine that Anqing permanent secret service journey mechanical investigations is developed.This wet-spraying machine has adopted a kind of impeller drawing-in device (patent No. ZL96202768.5), has reliable operation, and long service life adapts to the advantages such as particles of aggregates is large.AH series of products are produced at present.

Wet concrete sprayer is applied middle some problems that need solution

At present, because wet-spray technique has obvious advantage, the application of wet concrete sprayer in each engineering field is more and more, is the trend of spraying operation.But, due to the problem remaining in some solutions, applying of wet concrete sprayer played to certain obstruction.To such an extent as in China, it is main that current main sprayed mortar operating type remains dry spray.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 of import and joint accelerating admixture high (per ton 6000-8000 unit), corresponding dry spray powder accelerator price used is per ton only has 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 large.General wet concrete sprayer reaches tens times than dry spraying machine is expensive.At present, the main still dry method of sprayed mortar operation is sprayed many.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, easily plugging, and ejection efficiency is low; 3, springback capacity is large, and waste of material is serious; 4, accessory serious wear, waste is large, and fittings cost is high; 5, cement and sand, aggregate chips manually stir, and airborne dust is large; 6, powder accelerator adds by artificial, and proportioning is inhomogeneous; 7, due to the deflation that leaks out, cause cement loss large, change mix proportion, reduce concrete quality.Owing to there being the problems referred to above, advocating and promoting Wet-type concrete injection is trend.This kind of construction method 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 dry spray, concrete springback rate can reach 15%-50%.Adopt wet-spray technique, rebound degree can be reduced to below 10%.3,, when wet shot, because water/binder ratio is easy to control, concrete hydrating degree is high, admittedly can greatly improve the quality of sprayed mortar, improves concrete homogeneity.But Wet-type concrete sprays the following problem that also exists: 1, use liquid accelerating agent, increase construction cost (being 8 times of left and right of powder accelerator cost), and the irritant smell of liquid accelerating agent, easily corrosion, easily damages constructor's health; 2, complex structure, bulky, due to coal mine roadway limited space, therefore on-the-spot bad adaptability; 3, the gas leakage of rotator type wet-spraying machine is serious, easily plugging, 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 needs first Gunning material to be mixed, and therefore will have the preposition operation of stirring, transport, material loading, and construction is complicated; 6, after each spraying operation, all need water to clean equipment, increased employment man-hour; 7, fittings cost is high.

Be summed up, the subject matter that the concrete injection device 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; High and the large corrosion-prone problem of smell of cost that existing wet concrete sprayer uses liquid accelerating agent to exist mostly; Wet concrete sprayer Gunning material is easily blocked shotcrete pipe problem; High, the bulky problem of wet concrete sprayer cost; Wet concrete sprayer complicated operation, employment many problems in man-hour.

Summary of the invention

The object 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 the fields such as underground passage engineering, geotechnical engineering, municipal engineering, utilize compressed air for power, the mix mixing is by a certain percentage transported to and is subject to setting and harden on spray plane by pipeline, 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, respectively: rack section, power section, running part, mixer part, watering device part, quantitative conveying worm part, manipulation part and injection equipment part.Rack section is the body supports part of wet concrete sprayer of the present invention, entirety is frame construction, below rack section, be provided with the mine tram wheel pair contacting with track, the position placed in the middle above of rack section, be provided with mixer part, include the reductor parts of mixer, a side at reductor parts is provided with watering device part, the position being connected with reductor parts, be provided with running part, on one 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, in a side of quantitative conveying worm part, be provided with manipulation part.Below the agitator of mixer part, be provided with injection equipment part.Rack section includes chassis, engine reductor junction plate, column, mixer reductor junction plate, watering device, crossbeam, quantitative helical feed frame, unidirectional blower air feed interface, manipulation part panel, motor button, watering device control valve, air-flow material channel air feed interface, agitator bracing frame and mine tram wheel pair.Form support by four root posts and two crossbeams; Agitator bracing frame is four short columns that are welded on chassis, is welded with flat board on the top of said four short columns, and agitator is placed on dull and stereotyped upper, and by bolt, agitator is fixed on flat board; Quantitatively helical feed frame is made up of two tripods that are bolted on column, and quantitatively conveying worm is fixed in quantitative helical feed frame; Reductor junction plate is to have two block plates, be welded on respectively on crossbeam and column, be used for fixing respectively the reductor of power section and the reductor of mixer part, the steel plate being arranged on 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.Manipulation part includes control panel, motor button, watering device control valve, air-flow material channel air feed interface and total air inlet port.Motor button is arranged on manipulation part panel, near motor button, be provided with watering device control valve, in a side of 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 driving shaft, the outer end of driving shaft is provided with the top chock that supports use, driving shaft is connected to driven shaft a by transmission device (sprocket wheel, chain), on one end of driven shaft a, be provided with wheel a, driven shaft a is connected to one end of driven shaft b by transmission device (chain, sprocket wheel), the other end of driven shaft b is connected to again the sprocket wheel of driven shaft c end by driving chain, on the other end of driven shaft c, be provided with gear.On driving shaft, be provided with driving gear, on driven shaft d, be provided with driven gear, driving shaft connects and drives driven shaft d with the form of gear engagement, and driven shaft d is supported on step, is provided with wheel b on the other end of driven shaft d.Driving shaft is arranged on two root posts identical with stationary power part, by the bearing support being erected on two root posts, driving shaft is fixed; On driving shaft, there are 1 sprocket wheel, a gear wheel.Driving shaft is connected with the speed reducer output shaft hole of power section.Axle above driving shaft is driven shaft a, and driven shaft a is arranged on the two identical root posts with stationary power part, by the bearing support being erected on two root posts, driven shaft a is fixed; Respectively there is a sprocket wheel at two ends on driven shaft b; Driven shaft a is with the power shaft that turns to reductor on mixer by being connected wheel a, and driving shaft passes through chain with driven shaft a, sprocket wheel links, and in the time that motor rotates, is mixer input power.Axle below driving shaft is driven shaft d, and driven shaft d is arranged on below agitator, by two bearing supports, driven shaft d is erected on chassis; Above driven shaft d, have a pinion, the helical axis of the conveying worm that driven shaft d places with horizontal cross is by being connected wheel b; Driven shaft d and driving shaft are connected with a joggle by gear, can certainly take turns connection by sprocket wheel, and in the time that motor rotates, the conveying worm of placing for horizontal cross provides power; Helical axis afterbody and driven shaft d are by being connected wheel b.Axle above driven shaft a is driven shaft b, and driven shaft b is erected at the top of two root posts and other two root posts of stationary power part by bearing support, and respectively there is a sprocket wheel at driven shaft b two; Driven shaft a and driven shaft b link by sprocket wheel chain; In the time rotating under the driving of driven shaft a at motor, for driven shaft, b provides rotary power.In a bearing support being arranged on other two root posts relative with the two identical root posts of stationary power part of driven shaft c, other end is arranged in the bearing support on the three-legged supporting frame of the conveying worm that sets up quantitative conveying cement, accelerating admixture.Above driven shaft c, have a sprocket wheel and a gear, by chain, driven shaft b and driven shaft c linked, in the time that driven shaft b rotates for driven shaft c provides power simultaneously; In the time that driven shaft c rotates, the engagement of gear on driven shaft c drives the gear rotation on the helical axis of the conveying worm of quantitatively carrying cement hardener, completes quantitatively to the work of carrying cement hardener in agitator.One of main body of mixer part is agitator, agitator is arranged on 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 cement hardener charging aperture, position placed in the middle in agitator, is provided with screw, and the middle part of screw is provided with scraper plate, agitator downward about 150mm suitable for reading position, inside be provided with screen pack bracing frame, be provided with screen pack on bracing frame, scraper plate is on screen pack, in the upper end of screw, be connected with and turn to reductor.Mixer part comprises by agitator, turns to reductor, scraper plate, screen pack and screw to form.On agitator, be provided with emptying door, cement hardener charging aperture, screen pack bracing frame, the fixation clip of discharging opening, clear away waste.The bottom that discharging opening is arranged on agitator approaches a side of barrel rim, the circular hole cutting open, and discharging opening is normally open.Sprayed mortar material in agitator, after propeller agitation, is fallen into the spiral propeller of horizontal positioned by deadweight to discharging opening by screw scraping delivery.A side that approaches barrel rim at the bottom of emptying door is arranged on barrel, is 90 ° of angles with discharging opening position, is the semicircle hole cutting open, and discharging opening is normally off, only in cleaning bucket, opens when waste material.The opening and closing structure of emptying door is as following: " door-plate " by the semicircular plate under bucket undercut as this emptying door, go out an arc surface in the welded top of " door-plate ", on this arc surface, weld a round steel, 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, on ladle body, weld the steel plate of three middle borings, as the positioner of axis of rotation; When not needing cleaning, emptying door, in the time of closed condition, screws the tightening nut on axis of rotation top, at the bottom of blowing door-plate is promoted and is close to barrel; In the time of waste material in needs cleaning bucket, unscrew the nut on axis of rotation top, at the bottom of blowing door-plate is left barrel, and blowing door-plate is turned to a side, make waste material drop out staving from emptying door.Cement hardener charging aperture refers to 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 is made up of the flange on steel pipe and steel pipe in agitator outside welding.Screen pack bracing frame, along on a circumference of agitator downward about 15cm suitable for reading, with six larger 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, on steel plate, have circular hole, be used for agitator to be fixed on bracing frame.Agitator entirety is cylinder-like structure, lower end one side of agitator is provided with emptying door, and in the lower end of agitator, opposite side is provided with discharging opening, position slightly on the lower in the upper end of agitator, be provided with screen pack bracing frame, on screen pack bracing frame, be provided with screen pack.On a sidewall of agitator, be provided with cement hardener charging aperture, in the lower end of agitator, be connected with pressing plate, on a sidewall of agitator, be provided with axis of rotation location-plate, and being provided with axis of rotation by axis of rotation location-plate, the upper end of axis of rotation is provided with tightening nut.Screen pack is welded into two semicircle skeletons with round steel, welds wire gauze above skeleton, on the screen pack bracing frame of load in agitator, and itself and bracing frame is fixed with iron wire.Its effect is by foreign material filterings such as stones larger in the Gunning material being discharged in bucket.The main component of screw is axis, the upper end of axis is provided with spline housing, position placed in the middle on spline housing, is provided with screw fixed bolt hole, is used for screw to be connected with the output shaft that turns to reductor, the lower end of axis, specifically, in the middle and lower part of axis, be connected with blade, blade outer end is connected with round steel, in slightly top position, axis middle part, be provided with scraper plate fixing hole.Screw is with thick-walled seamless steel pipes as axis, and the upper end welding spline housing of axle, is connected with the reductor output spline that turns on crossbeam, presses helix welding blade around axis, and blade and axis are the inclination angle of 30 °, and the outer end of blade connects with round steel.Scraper plate is semi-circular plates slightly larger than propeller shaft external diameter, is extended outward the straight plate that is less than agitator radius as main body (steel plate or monoblock cast) along semi-circular plate by two centres; On its semicircle, hole, by the hole on screw axis, 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.In the time that screw rotates, scraper plate is rotation and then, scrapes in agitator unloading the Gunning material dropping on screen pack.On the plate body of scraper plate, be provided with soft board locating hole, by soft board locating hole, can and be clamped in two soft boards between scraper plate by two scraper plates and be fixed as one, the position placed in the middle, protruding part for being connected with axis on scraper plate, is provided with the locating hole that screw connects.Quantitatively conveying worm part includes hopper, gear, charging aperture, quantitative conveying worm, flange and conveyer discharging opening.Quantitatively conveying worm is main component, there are conveyer urceolus and helical axis to form, the flange that connects use is set at the discharge port end of quantitative conveying worm, at the other end of quantitative conveying worm, be provided with gear, be used for and driven shaft c on gear be connected with a joggle, on the upper side wall of quantitative conveying worm urceolus, be provided with charging aperture, on charging aperture, be connected with hopper.Above the urceolus of conveying worm, have two charging apertures, charging aperture can, by regulating its size to adjust the flow of cement or accelerating admixture, be hopper on charging aperture, and cement and accelerating admixture are housed respectively; One end that quantitatively conveying worm is connected with agitator is discharging opening, couples together by the flange on agitator and agitator, and cement and accelerating admixture are pressed to the flow of setting, and is sent in agitator, with other Gunning material mix and blend.

Injection equipment part includes quantitative conveying worm, material feeding casing, air inlet port b, unidirectional blower, air-flow material channel and air inlet port a.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, on the top of air-flow material channel, be connected with material feeding casing, material feeding casing is connected with quantitative conveying worm by flange, at the other end of 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.Spiral urceolus is the main component of quantitative conveying worm, entirety is cylinder-like structure, in spiral urceolus, be provided with helical axis, on helical axis, be provided with helical blade, the two ends of spiral urceolus are provided with the flange that connects use, below spiral urceolus, are provided with fixation clip, on fixation clip, be provided with bolt hole, be provided with moving tooth in an end of helical axis.On spiral urceolus, have material receiving port, receive the whitewashing compound flowing out from agitator bottom discharge mouth; Spiral urceolus is fixed by bolts on 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) composition.Helical blade is welded on axle, and the outer tube inner chamber length of length and spiral is identical, grows on the axle of spiral urceolus part and is welded with symmetrical one group of moving tooth (or two scraper plates).Air-flow material channel includes air inlet port a, material feeding casing and unidirectional blower.Air-flow material channel entirety is cylinder-like structure.Material feeding casing uses the tubing identical with conveying worm spiral urceolus diameter to process.The axle that welds moving tooth part on Length Ratio helical axis is slightly long.Couple together by flange and conveying worm urceolus.Air-flow material channel uses and processes than the tubing of material feeding box body diameter left and right half as large.By the pipe of the part equating with material receiving box body length, prescind the half of circumference, then air-flow material channel and material feeding casing splice material are welded, become one.The afterbody of air-flow material channel gets up with Plate Welding, in the middle of steel plate, reserves hole, and on this hole, (air inlet port a) for the push-in air inlet plug of welding standard; The other end relative with afterbody is welded with a slice flange (being used for being connected with unidirectional blower), uniform 4 holes on flange.Unidirectional blower includes air inlet main body, steel pipe, drive end bearing bracket, boss, groove, feeding-passage and air inlet port b.In air inlet main body, be provided with groove (circular), connecting groove is provided with air inlet port b, and the center of groove is provided with boss, and the center of air inlet main body is also feeding-passage, front near air inlet main body is provided with drive end bearing bracket, is connected with steel pipe with air inlet main body.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 groove inner side, deep processing goes out a circumference boss, and the endoporus break-through steel plate of this boss, 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, (air inlet port b) to install push-in intake interface.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 large 2-3mm of boss external diameter in main body, and boss, after this drive end bearing bracket and main body link together, exceeds the about 5mm of this drive end bearing bracket left and right; On this drive end bearing bracket, uniform 4 through holes, are used for being connected with main body.In this drive end bearing bracket and the relative one side that main body connects, be welded with the steel pipe of one section of 50mm left and right, 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 both are welded as a whole after processing), the compressed air that enters groove from air inlet port can only advance along the gap between boss and drive end bearing bracket to a direction (in sand blast rubber hose), and gunite material is sent to sand blast rubber hose.Unidirectional blower in 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 to water, gas and electricity.2, from mine car, Gunning material (is referred to yellow sand, aggregate chips by workman.At present, Dou Shi ground, most colliery mixes yellow sand and aggregate chips to scale and packs mine car into and be transported to scene) be discharged into agitator with spades.3, by cement and accelerating admixture in mine car unloads the hopper being respectively charged on quantitative conveying worm.Because this patent emitted dose hourly is certain, according to yellow sand, the aggregate chips quantity of spraying, proportioning according to the rules, adjusts the delivery rate of quantitative conveying worm, just can ensure that the proportioning of Gunning material meets the requirement of setting.4, in pulp shooting machine work time,, by the screw rotating, drive the scraper plate being fixed on its axle that the Gunning material dropping on agitator filtering net is scraped in agitator, with send into cement, accelerating admixture action of forced stirring in bucket from quantitative conveying worm even.Mixer part of the present invention, belongs to forced action type and stirs, and the homogeneous performance of the Gunning material that therefore process stirs is ensured fully.5, in whipping process, according to the moisture situation of sandstone, in agitator, spray into appropriate water by watering device, ensure that the mixing Gunning material through stirring forms moist shape, reduce airborne dust simultaneously.On-the-spot airborne dust source is mainly created in the process that pulp shooting machine is other and shotcrete pipe front end sprays, the present invention adopts quantitative conveying worm to feed cement, accelerating admixture to agitator, can reduce to greatest extent airborne dust, again according to the moisture situation of sand (rainy season, moisture content was high), by watering device suitable add a little water, the other airborne dust of pulp shooting machine is not almost had; Meanwhile, moist sand and the cement quantitatively feeding, accelerating admixture, through action of forced stirring, can be fused into the mixed material of dampness fully, and in the time that pneumatic transporting is delivered to shotcrete pipe front end, airborne dust also reduces greatly.6, the discharging opening of the Gunning material of mixing at the bottom of by agitator falls into the charging aperture of the conveying worm of the horizontal positioned of injection equipment part.7, Gunning material is pushed in the material feeding casing of air-flow material channel part through the helical axis of this conveying worm.8, the upset of the moving tooth in material receiving box body again, scrapes Gunning material in air-flow material channel.9,, by the compressed air of air-flow material channel afterbody, Gunning material was blowed before unidirectional blower.10, the compressed air entering in the compressed air entering below through air-flow material channel and unidirectional blower is made a concerted effort, and the Gunning material entering in shotcrete pipe is sent.Unidirectional blower is in normally open, as long as open the source of the gas of manipulation part, the compressed air entering from unidirectional blower air inlet port start to supply gas in shotcrete pipe, make in shotcrete pipe in negative pressure state, therefore any period in whitewashing process no matter, all can greatly reduce the phenomenon of plugging.Also just because of the unidirectional structure of supplying gas of unidirectional blower, stop the generation of air-back, the pressure wind energy of guarantee air-flow material channel afterbody is blown into the front end of unidirectional blower by the material that enters air-flow material channel easily by the feeding-passage on unidirectional blower, thereby completes smoothly spraying operation.11, at shotcrete pipe front end, through mixing with the current in water inlet pipe on nozzle, the Gunning material of the thin pasty state of formation is sprayed to and is subject to spray plane, complete spray operation.

Wet concrete sprayer of the present invention, adopts damp formula to spray the (regulation according to MT/T547-2006 rotor-type concrete sprayer standard the 3rd part: the compound water/binder ratio that dry method injection fingering enters rotor material chamber is not more than 0.2; The compound water/binder ratio that tide formula injection fingering enters rotor material chamber is greater than 0.2; The compound water/binder ratio that wet shotcrete technology fingering enters rotor material chamber is greater than 0.4.), there is following advantages: 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 Gunning material, greatly reduce again airborne dust; 3, mixer part belongs to forced action type stirring, and spice is even, and resilience material is low; 4, good seal performance, and have watering device, the other airborne dust of machine sprays and reduces approximately 90% than dry method; 5, still use original powder accelerator, compared with cost sprays with dry method, do not increase; 6, owing to having adopted the unidirectional air-supply arrangement of particular design, greatly reduce the problem of plugging; 7, complete machine expense reduces greatly than wet spraying machine group, few easy workout part, and use cost also reduces greatly.

Brief description of the drawings

Accompanying drawing 1 is the general assembly structural representation of wet concrete sprayer of the present invention; Accompanying drawing 2 is structural representations of rack section, watering device part and the side-looking of manipulation part; 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 part, 7-manipulation part, 8-injection equipment part, 9-chassis, 10-engine reductor junction plate, 11-column, 12-mixer reductor junction plate, 13-crossbeam, 14-quantitatively helical feed frame, 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-axis of rotation, 45-axis of rotation 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 connection locating hole, 56-soft board, 57-hopper, 58-end tooth wheel, 59-charging aperture, 60-quantitatively conveying worm, 61-flange, 62-conveyer discharging opening, 63-air inlet port b, 64-unidirectional blower, 65-air-flow material channel, 66-air inlet port 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.

Detailed description of the invention

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: wet concrete sprayer of the present invention in conjunction with the embodiments, include eight major parts, respectively: rack section 1, power section 2, running part 3, mixer part 4, watering device part 5, quantitative conveying worm part 6, manipulation part 7 and injection equipment part 8.Rack section 1 is the body supports part of wet concrete sprayer of the present invention, entirety is frame construction, below rack section 1, be provided with the mine tram wheel contacting with track to 20, the position placed in the middle above of rack section 1, be provided with mixer part 4, include the reductor parts of mixer, a side at reductor parts is provided with watering device part 5, the position being connected with reductor parts, be provided with running part 3, on one 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 manipulation 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, manipulation 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 chassis 9, is welded with flat board on the top of said four short columns, and agitator 41 is placed on dull and stereotyped upper, and by bolt, agitator 41 is fixed on flat board; Quantitatively helical feed frame 14 is made up of two tripods that are bolted on column 11, and quantitatively conveying worm is fixed in quantitative helical feed frame 14; Reductor junction plate is to have two block plates, be welded on respectively on crossbeam 13 and column 11, be used for fixing respectively the reductor of power section and the reductor of mixer part, the steel plate being arranged on 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.Manipulation part 7 includes 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 manipulation part 7 panels, near motor button 16, be provided with watering device control valve 17, in a side of 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 use, driving shaft 29 is connected to driven shaft a22 by transmission device (sprocket wheel, chain), on one end of driven shaft a22, be provided with wheel a28, driven shaft a22 is connected to one end of driven shaft b23 by transmission device (chain, sprocket wheel), the other end of driven shaft b23 is connected to again the sprocket wheel 27 of driven shaft c25 end by driving chain 24, be provided with gear 26 on the other end of driven shaft c25.On driving shaft 29, be provided with driving gear, be provided with driven gear 33 on driven shaft d34, driving shaft 29 connects and drives driven shaft d34 with the form of gear engagement, and driven shaft d34 is supported on step 32, is provided with wheel b31 on the other end of driven shaft d34.Driving shaft 29 is arranged on two root posts identical with stationary power part, by the bearing support 30 being erected on two root posts, driving shaft 29 is fixed; On driving shaft 29, there are 1 sprocket wheel, a gear wheel.Driving shaft 29 is connected with the speed reducer output shaft hole of power section.Driving shaft 29 axle is above driven shaft a22, and driven shaft a22 is arranged on the two identical root posts with stationary power part, by the bearing support being erected on two root posts, driven shaft a22 is fixed; Respectively there is a sprocket wheel at two ends on driven shaft b23; Driven shaft a22 is with the power shaft that turns to reductor on mixer by being connected wheel a28, and driving shaft 29 passes through chain with driven shaft a22, sprocket wheel links, and in the time that motor rotates, is mixer input power.Driving shaft 29 axle is below driven shaft d34, and driven shaft d34 is arranged on below agitator 41, by two bearing supports, driven shaft d34 is erected on chassis 9; Above driven shaft d34, have a pinion, the helical axis of the conveying worm that driven shaft d34 places with horizontal cross is by being connected wheel b31; Driven shaft d34 and driving shaft 29 are connected with a joggle by gear, can certainly take turns connection by sprocket wheel, and in the time that motor rotates, the conveying worm of placing for horizontal cross provides power; Helical axis afterbody and driven shaft d34 are by being connected wheel b31.Axle above driven shaft a22 is driven shaft b23, and driven shaft b23 is erected at the top of two root posts and other two root posts of stationary power part by bearing support, and respectively there is a sprocket wheel at driven shaft b23 two; Driven shaft a22 and driven shaft b23 link by sprocket wheel chain; In the time rotating under the driving of driven shaft a22 at motor, for driven shaft, b23 provides rotary power.In a bearing support being arranged on other two root posts relative with the two identical root posts of stationary power part of driven shaft c25, other end is arranged in the bearing support on the three-legged supporting frame of the conveying worm that sets up quantitative conveying cement, accelerating admixture.Above driven shaft c25, have a sprocket wheel and a gear, by chain 24, driven shaft b23 and driven shaft c25 linked, in the time that driven shaft b23 rotates for driven shaft c25 provides power simultaneously; In the time that driven shaft c25 rotates, the engagement of gear on driven shaft c25 drives the gear rotation on the helical axis of the conveying worm of quantitatively carrying cement hardener, completes quantitatively to the work of carrying cement hardener in agitator.One of main body of mixer part 4 is agitator 41, agitator 41 is arranged on 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, the interior position placed in the middle of 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, inside be provided with screen pack bracing frame 35, on screen pack bracing frame 35, be 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.On agitator 41, be 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.The bottom that discharging opening 40 is arranged on agitator 41 approaches a side of barrel rim, the circular hole cutting open, and discharging opening 40 is normally open.Sprayed mortar material in agitator 41, after screw 42 stirs, is fallen into the spiral propeller of horizontal positioned by deadweight to discharging opening 40 by screw 42 scraping deliveries.A side that approaches barrel rim at the bottom of emptying door is arranged on barrel, is 90 ° of angles with discharging opening 40 positions, is the semicircle hole cutting open, and discharging opening 40 is normally off, only in cleaning bucket, opens when waste material.The opening and closing structure of emptying door is as following: " door-plate " by the semicircular plate under bucket undercut as this emptying door, go out an arc surface in the welded top of " door-plate ", on this arc surface, weld a round steel, 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, on ladle body, weld the steel plate of three middle borings, as the positioner of axis of rotation; When not needing cleaning, emptying door, in the time of closed condition, screws the tightening nut on axis of rotation top, at the bottom of blowing door-plate is promoted and is close to barrel; In the time of waste material in needs cleaning bucket, unscrew the nut on axis of rotation top, at the bottom of blowing door-plate is left barrel, and blowing door-plate is turned to a side, make waste material drop out staving from emptying door.Cement hardener charging aperture 38 refers to 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 made up of the flange on steel pipe and steel pipe in agitator 41 outsides welding.Screen pack bracing frame 35, along on a circumference of agitator 41 downward about 15cm suitable for reading, with six larger nuts, is welded on barrel inwall, is used for supporting screen pack 39; Pressing plate 48, at the bottom of being welded on barrel and four block plates of agitator bracing frame 19 opposite positions, has circular hole on steel plate, be used for agitator 41 to be fixed on bracing frame.Agitator 41 entirety are cylinder-like structure, lower end one side of agitator 41 is provided with emptying door, and in the lower end of agitator 41, opposite side is provided with discharging opening 40, position slightly on the lower in the upper end of agitator 41, be provided with screen pack bracing frame 35, on screen pack bracing frame 35, be provided with screen pack 39.On a sidewall of agitator 41, be provided with cement hardener charging aperture 38, in the lower end of agitator 41, be connected with pressing plate 48, on a sidewall of agitator 41, be 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 tightening nut 43.Screen pack 39 use round steel are welded into two semicircle skeletons, weld wire gauze above skeleton, on the screen pack bracing frame 35 of load in agitator 41, and itself and bracing frame are fixed with iron wire.Its effect is by foreign material filterings such as stones larger in the Gunning material being discharged in 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 to be connected with the output shaft that turns to reductor 36, the lower end of axis 52, specifically, in the middle and lower part of axis 52, be connected with blade 53, blade 53 outer ends are connected with round steel 48, in slightly top position, axis 52 middle parts, be provided with scraper plate fixing hole 49.Screw 42 use 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 crossbeam 13, presses helix welding blade 53 around axis 52, blade 53 is the inclination angle of 30 ° with axis 52, and the outer end of blade 53 connects with round steel 48.Scraper plate 37 is semi-circular plates slightly larger than propeller shaft external diameter, is extended outward the straight plate that is less than agitator radius as main body (steel plate or monoblock cast) along semi-circular plate by two centres; On its semicircle, hole, by the hole on screw axis 52, 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.In the time that screw 42 rotates, and then rotation of scraper plate 37, scrapes in agitator 41 unloading the Gunning material dropping on screen pack 39.On the plate body of scraper plate 37, be provided with soft board locating hole 54, by soft board locating hole 54, can and be clamped in two soft boards 56 between scraper plate 37 by two scraper plates 37 is fixed as one, position placed in the middle, protruding part for being connected with axis 52 on scraper plate 37, is provided with screw and connects 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 form, the flange 61 that connects use is set at conveyer discharging opening 62 ends of quantitative conveying worm 60, at the other end of quantitative conveying worm 60, be provided with gear 58, be used for and driven shaft c25 on gear be connected with a joggle, on the upper side wall of quantitative conveying worm 60 urceolus, be provided with charging aperture 59, on charging aperture 59, be connected with hopper 57.Quantitatively, above the urceolus of conveying worm 60, have two charging apertures 59, charging aperture 59 can, by regulating its size to adjust the flow of cement or accelerating admixture, be hopper 57 on charging aperture 59, and cement and accelerating admixture are housed respectively; One end that quantitatively conveying worm 60 is connected with agitator 41 is discharging opening 62, couples together by the flange on agitator 41 and agitator, and cement and accelerating admixture are pressed to the flow of setting, and is sent in agitator 41, with other Gunning material mix and blend.

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 forms.One end of air-flow material channel 65 is provided with air inlet port a66, on the top of 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, at the other end of 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, entirety is cylinder-like structure, in spiral urceolus, be provided with helical axis, on helical axis, be provided with helical blade, the two ends of spiral urceolus are provided with the flange that connects use, below spiral urceolus, are provided with fixation clip 70, on fixation clip 70, be provided with bolt hole, be provided with moving tooth 69 in an end of helical axis 67.On spiral urceolus 71, have material receiving port 68, receive the whitewashing compound flowing out from agitator bottom discharge mouth 40; Spiral urceolus 71 is fixed by bolts on 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) composition.Helical blade 72 is welded on axle, and length is identical with the interior cavity length of spiral urceolus 71, grows and on the axle of spiral urceolus part, is welded with symmetrical one group of moving tooth 69(or two scraper plates).Air-flow material channel 65 includes air inlet port a66, material feeding casing 73 and unidirectional blower 64.Air-flow material channel 65 entirety are cylinder-like structure.The tubing that material feeding casing 73 use are identical with conveying worm spiral urceolus diameter processes.The axle that welds moving tooth part on Length Ratio helical axis 67 is slightly long.Couple together by flange and conveying worm urceolus.Air-flow material channel 65 uses than the tubing of material feeding casing 73 diameter left and right half as large and processes.By with the pipe of material feeding casing 73 part equal in length, prescind the half of circumference, then air-flow material channel 65 and material feeding casing 73 are added to sheet material and weld, become one.The afterbody of air-flow material channel 65 gets up with Plate Welding, in the middle of steel plate, reserves hole, the push-in air inlet plug (air inlet port a66) 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 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.In air inlet main body 74, be provided with groove 78 (circular), connecting groove 78 is provided with air inlet port b63, groove 78 center is provided with boss 77, air inlet main body 74 center is also 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 inner sides, deep processing goes out a circumference boss 77, and the endoporus break-through steel plate of this boss 77, 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 large 2-3mm of boss external diameter in main body, and boss, after this drive end bearing bracket and main body link together, exceeds the about 5mm of this drive end bearing bracket left and right; On this drive end bearing bracket, uniform 4 through holes, are used for being connected with main body.In this drive end bearing bracket and the relative one side that main body connects, be welded with the steel pipe of one section of 50mm left and right, 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 both are welded as a whole after processing), the compressed air that enters groove from air inlet port can only advance along the gap between boss and drive end bearing bracket to a direction (in sand blast rubber hose), and gunite material is sent to sand blast rubber hose.Unidirectional blower 64 in 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 to water, gas and electricity.2, from mine car, Gunning material (is referred to yellow sand, aggregate chips by workman.At present, Dou Shi ground, most colliery mixes yellow sand and aggregate chips to scale and packs mine car into and be transported to scene) be discharged into agitator with spades.3, by cement and accelerating admixture in mine car unloads the hopper being respectively charged on quantitative conveying worm.Because this patent emitted dose hourly is certain, according to yellow sand, the aggregate chips quantity of spraying, proportioning according to the rules, adjusts the delivery rate of quantitative conveying worm, just can ensure that the proportioning of Gunning material meets the requirement of setting.4, in pulp shooting machine work time,, by the screw rotating, drive the scraper plate being fixed on its axle that the Gunning material dropping on agitator filtering net is scraped in agitator, with send into cement, accelerating admixture action of forced stirring in bucket from quantitative conveying worm even.Mixer part of the present invention, belongs to forced action type and stirs, and the homogeneous performance of the Gunning material that therefore process stirs is ensured fully.5, in whipping process, according to the moisture situation of sandstone, in agitator, spray into appropriate water by watering device, ensure that the mixing Gunning material through stirring forms moist shape, reduce airborne dust simultaneously.On-the-spot airborne dust source is mainly created in the process that pulp shooting machine is other and shotcrete pipe front end sprays, the present invention adopts quantitative conveying worm to feed cement, accelerating admixture to agitator, can reduce to greatest extent airborne dust, again according to the moisture situation of sand (rainy season, moisture content was high), by watering device suitable add a little water, the other airborne dust of pulp shooting machine is not almost had; Meanwhile, moist sand and the cement quantitatively feeding, accelerating admixture, through action of forced stirring, can be fused into the mixed material of dampness fully, and in the time that pneumatic transporting is delivered to shotcrete pipe front end, airborne dust also reduces greatly.6, the discharging opening of the Gunning material of mixing at the bottom of by agitator falls into the charging aperture of the conveying worm of the horizontal positioned of injection equipment part.7, Gunning material is pushed in the material feeding casing of air-flow material channel part through the helical axis of this conveying worm.8, the upset of the moving tooth in material receiving box body again, scrapes Gunning material in air-flow material channel.9,, by the compressed air of air-flow material channel afterbody, Gunning material was blowed before unidirectional blower.10, the compressed air entering in the compressed air entering below through air-flow material channel and unidirectional blower is made a concerted effort, and the Gunning material entering in shotcrete pipe is sent.Unidirectional blower is in normally open, as long as open the source of the gas of manipulation part, the compressed air entering from unidirectional blower air inlet port start to supply gas in shotcrete pipe, make in shotcrete pipe in negative pressure state, therefore any period in whitewashing process no matter, all can greatly reduce the phenomenon of plugging.Also just because of the unidirectional structure of supplying gas of unidirectional blower, stop the generation of air-back, the pressure wind energy of guarantee air-flow material channel afterbody is blown into the front end of unidirectional blower by the material that enters air-flow material channel easily by the feeding-passage on unidirectional blower, thereby completes smoothly spraying operation.11, at shotcrete pipe front end, through mixing with the current in water inlet pipe on nozzle, the Gunning material of the thin pasty state of formation is sprayed to and is subject to spray plane, complete spray operation.Wet concrete sprayer of the present invention, adopts damp formula to spray the (regulation according to MT/T547-2006 rotor-type concrete sprayer standard the 3rd part: the compound water/binder ratio that dry method injection fingering enters rotor material chamber is not more than 0.2; The compound water/binder ratio that tide formula injection fingering enters rotor material chamber is greater than 0.2; The compound water/binder ratio that wet shotcrete technology fingering enters rotor material chamber is greater than 0.4.), there is following advantages: 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 Gunning material, greatly reduce again airborne dust; 3, mixer part belongs to forced action type stirring, and spice is even, and resilience material is low; 4, good seal performance, and have watering device, the other airborne dust of machine sprays and reduces approximately 90% than dry method; 5, still use original powder accelerator, compared with cost sprays with dry method, do not increase; 6, owing to having adopted the unidirectional air-supply arrangement of particular design, greatly reduce the problem of plugging; 7, complete machine expense reduces greatly than wet 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), quantitatively conveying worm part (6), manipulation part (7) and injection equipment part (8), rack section (1) is body supports part, entirety is frame construction, below rack section (1), be provided with the mine tram wheel contacting with track to (20), the position placed in the middle above of rack section (1), be provided with mixer part (4), include the reductor parts of mixer, be provided with watering device part (5) in a side of reductor parts, the position being connected with reductor parts, be provided with running part (3), on one 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 manipulation part (7), 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) composition support, agitator bracing frame (19) is four short columns that are welded on chassis (9), is welded with flat board on the top of said four short columns, and agitator (41) is placed on dull and stereotyped upper, and by bolt, agitator (41) is fixed on flat board, quantitatively helical feed frame (14) is made up of two tripods that are bolted on column (11), and quantitatively conveying worm is fixed in quantitative helical feed frame (14), reductor junction plate is to have two block plates, be welded on respectively on crossbeam (13) and column (11), be used for fixing respectively the reductor of power section and the reductor of mixer part, the steel plate being arranged on 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.

2. wet concrete sprayer according to claim 1, it is characterized in that motor button (16) is arranged on manipulation part (7) panel, near motor button (16), be provided with watering device control valve (17), in a side of 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.

3. 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 use, driving shaft (29) is connected to driven shaft a(22 by transmission device), at driven shaft a(22) one end on be provided with to wheel a(28), driven shaft a(22) be connected to driven shaft b(23 by transmission device) one end, driven shaft b(23) the other end be connected to driven shaft c(25 by driving chain (24) again) end sprocket wheel (27), driven shaft c(25) the other end on be provided with gear (26), driving shaft is provided with driving gear on (29), driven shaft d(34) on be provided with driven gear (33), driving shaft (29) connects and drives driven shaft d(34 with the form of gear engagement), driven shaft d(34) to be supported on step (32) upper, driven shaft d(34) the other end on be provided with wheel b(31), driving shaft (29) is arranged on two root posts identical with stationary power part, by the bearing support (30) being erected on two root posts, driving shaft (29) is fixed.

4. wet concrete sprayer according to claim 3, is characterized in that driven shaft b(23) on two ends respectively have a sprocket wheel; Driven shaft a(22) with the power shaft that turns to reductor on mixer by wheel a(28) is connected driving shaft (29) and driven shaft a(22) pass through chain, sprocket wheel links, and in the time that motor rotates, is mixer input power.

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

6. wet concrete sprayer according to claim 5, 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), in the upper position placed in the middle of spline housing (51), be provided with screw fixed bolt hole (50), be used for screw (42) to be connected with the output shaft that turns to reductor (36), the lower end of axis (52), specifically in the middle and lower part of axis (52), be connected with blade (53), blade (53) outer end is connected with round steel (48), in slightly top position, axis (52) middle part, be provided with scraper plate fixing hole (49).

7. wet concrete sprayer according to claim 5, it is characterized in that being provided with soft board locating hole (54) on the plate body of scraper plate (37), by soft board locating hole (54), two scraper plates (37) and the soft board (56) being clamped between two scraper plates (37) can be fixed as one, in the upper position placed in the middle, protruding part for being connected with axis (52) of scraper plate (37), be provided with screw and connect with locating hole (55).

8. wet concrete sprayer according to claim 3, it is characterized in that, at conveyer discharging opening (62) end of quantitative conveying worm (60), the flange (61) that connects use is set, at the other end of quantitative conveying worm (60), be provided with gear (58), be used for and driven shaft c(25) on gear be connected with a joggle, on the upper side wall of quantitative conveying worm (60) urceolus, be provided with charging aperture (59), on charging aperture (59), be connected with hopper (57).

9. wet concrete sprayer according to claim 1, it is characterized in that described injection equipment part comprises air-flow material channel (65), one end of air-flow material channel (65) is provided with air inlet port a(66), on the top of 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, at the other end of 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).