Background technology
Light foam concrete (hereinafter to be referred as said foam concrete) has strong points such as light weight, heat-insulation and heat-preservation and sound insulation, and is widely used as the top layer construction material on building wall and roof etc. with it, perhaps build preparation light thermal-insulation member by mould.Said foam concrete is present a kind of energy saving and environment friendly concrete, and extremely wide application prospect is arranged.
Existing mainly be Binder Materials with cement, prepare in the said foam concrete technology with foams mix, the problem that mainly has following two aspects: the one, aspect its foam preparation technique, owing to be according to the blowing agent operation instructions, by manually blowing agent and water being converted in proportion and being diluted, again by pump for example piston pump pump into foam maker with compressed air, foam and produce foam.Do not meet specification requirement if find the foam quality produced, then by the adjusting of artificial enforcement air pressure and piston pump pressure.Because foam quality is all multifactor directly related with foaming agent consumption, air pressure and piston pump pressure etc., thereby the said adjustment process of prior art is cumbersome, and device start is frequent, influence the stable of air pressure and piston pump pressure and foaming agent consumption, also be provided with simultaneously and can accomplish effectively accurately metering, cause the foam quality instability, directly influence said foam concrete quality and field operation efficient.The 2nd, make aspect the said foam concrete technology in its mud and foams mix, because it stirs the mud dispensing of producing by cement, admixture, additive and water through mixer, adopt screw pump or hydraulic pump mostly, with the blender of slurry transportation, make said foam concrete with the foams mix of while input mixer to certain level distance or certain altitude.Thereby not only its at the scene of building, need frequent mobile device, give and organize continuous productive process and large tracts of land, multi-level rapid construction to make troubles, especially said foam concrete end product quality, need the on-the-spot regulation and control of experienced workmen, this just is difficult to accomplish effectively, guarantee accurately, consistently the quality of said foam concrete, and the foam of being produced need pass through pressurized with compressed air, is delivered to the blender of certain level distance or certain altitude again.Be transformed into the process that normal pressure mixes and exports again because foam has experienced pressurized delivered like this, will cause a large amount of breakages of foam, directly have a strong impact on the quality of said foam concrete.And its used hydraulic pump is relatively heavier, and difficulty is all compared in maintaining and repairing; Screw pump is wearing and tearing easily then.
The preparation equipment of the said foam concrete of prior art, generally all has the mud device for making that comprises feeder, cistern and mixer, comprise the air compressor of translator and the compressed air feedway of main air storage bag and connecting line, foam preparation device and mud and foams mix prepare 4 parts such as said foam concrete device.Said mud device for making is the fexible unit of routine techniques, and said foam preparation device, and the mixed liquor delivery pump that mainly comprises blowing agent and water is screw pump or hydraulic pump and foam maker and connecting line for example.And said foam preparation device is used with the mud device for making to be independent of main frame form in addition.And saidly comprise that mainly for example the mud and the foams mix of the blender of screw pump or hydraulic pump and mud and foams mix prepare said foam concrete preparation facilities to the slurry transportation pump, then divide and be listed in beyond the main frame, slush pump is arranged on and the contiguous position of mixer, blender is arranged on the scene of building.Preparation equipment by existing said foam concrete described above can be understood, at the scene in the pouring construction process, not only it implements to control very trouble of operation, said device is moved also very inconvenient, and because foam enters blender, must experience pressurized delivered and be transformed into the process that normal pressure mixes and exports again, will cause foam damaged in a large number, and directly influence the quality of said foam concrete.
Summary of the invention
The preparation method and the main frame thereof that the purpose of this invention is to provide a kind of light foam concrete, measure inaccurate with the raw material material that solves the said foam concrete technology of present preparation, the foam quality instability, the foam breakage rate is big in the pumping process, the technical problem of prepared light foam concrete difficult quality guarantee, and adapt to site operation or the said foam concrete of factory-prepared member, to the needs of its main frame conveniently moving and control facility etc.
The present invention realizes that the light foam concrete preparation method's of its purpose technical scheme is:
A kind of preparation method of light foam concrete, comprise that employing prepares foam by the included foam maker of main frame, employing prepares mud by the mixer with the supporting common slurrying equipment of described main frame, with by the included blender of described main frame mud and foams mix are prepared finished product light foam concrete and output, its innovative point is:
Blowing agent, water and the compressed-air actuated metering and the mixing of a, preparation foam, be by described main frame included be located at cistern be connected with piston pump on the pipeline the water supply manual modulation valve and be located at the 2nd fen air storage bag be connected with foam maker on the pipeline the air feed manual modulation valve be located at the adjustable electronic valve of the adjustable flow on the pipeline regulation and control that combine that are connected with piston pump of little pneumatic diaphragm pump and implement, and, adopt foam operating pressure conveying technology commonly used by the foam of foam maker preparation;
The conveying of the mixing mud of b, mud and foam, be adopt by be located at main air storage bag be connected with big pneumatic diaphragm pump the compressed air manual modulation valve regulation and control on the pipeline big pneumatic diaphragm pump slurry conveyed and adopt blender to be located at the structure technology at big pneumatic diaphragm pump vicinity position, to directly be delivered to the scene of building of certain altitude or certain distance through the prepared finished light foam concrete of blender by the same big pneumatic diaphragm pump that is located at the contiguous position of blender.
The above foam operating pressure commonly used is meant foam delivery and penetrates the dynamic pressure that the mud top layer enters mud inside.The said foam operating pressure commonly used of the present invention is advocated in 0.1~0.6Mpa scope.And by the mud pressure that big pneumatic diaphragm pump goes out, advocate in 0.4~1.2Mpa scope.And the size of its mud pressure can be chosen according to the delivery head and the distance of the said foam concrete of output.Said membrane pump has function of measuring.
Can understand by above given technical scheme, the present invention since adopt manual modulation valve for example drawing rod-type lockable manually transfer the control technique that valve and adjustable electronic valve combine, blowing agent, water and air are implemented effectively metering and strict proportioning, and the conveying of foam operating pressure, thereby the stability of foam quality and the integrity of foam have been guaranteed; Owing to adopt big pneumatic diaphragm pump by manual modulation valve control, substitute the screw pump or the hydraulic pump of prior art, not only can implement the metering dispensing to mud, and because blender is located at the contiguous position of big pneumatic diaphragm pump, thereby foam needn't pressurized delivered be transformed into the normal pressure mixing again, thereby further effectively avoided the damage of foam, guaranteed the quality of prepared said foam concrete, thereby realized purpose of the present invention.
Preparation method's of the present invention further innovative point is:
In the control technique of blowing agent, water and compressed-air actuated metering and mixing of preparation foam, also adopt to be located at the gas supply electromagnetic valve that the 2nd fen air storage bag be connected with foam maker on the pipeline and to implement; By magnetic valve and the regulation and control that manual modulation valve and adjustable electronic valve combine, be with manual adjustments valve regulation gas circuit air pressure, when the tolerance air pressure adjustment is suitable, the locking manual modulation valve; Switching with the solenoid control gas circuit; Regulate and control water consumption with manual modulation valve; Consumption with adjustable electronic valve control blowing agent, and mix with water that piston pump sucks, form the mixed liquor of blowing agent and water, and said mixed liquor pumped into foam maker by piston pump, with by the compressed air of manual modulation valve regulation and control through foam maker generation foam and with the foam input mixer;
In the mixing mud of mud and foam is carried, also adopt magnetic valve set on the supply air line of big pneumatic diaphragm pump and Pressure gauge to implement regulation and control; The pressure shown according to Pressure gauge with manual adjustments valve regulation tolerance and air pressure, is opened and closed by the solenoid control gas circuit, implements the height or the distance of pumping lightweight foam concrete, after adjusting is suitable, is implemented the adjusting locking of this gas circuit by manual modulation valve; The material sucking port of big pneumatic diaphragm pump can suck the mud that stirs from mixer; By big pneumatic diaphragm pump mud that pumps and the foam that foams through foam maker, input mixer synthesizes light foam concrete simultaneously, and then light foam concrete directly is delivered to the scene of building of certain altitude or certain distance.
More than the technical scheme of given 2 further innovative points, at its technical magnetic valve control technique that increased respectively.That is to say that its control technique is by magnetic valve and manual modulation valve, or the multiple control technique of being formed by magnetic valve, manual modulation valve and adjustable electronic valve.Its purpose obviously is further to strengthen control measures.The main effect of said magnetic valve is the unlatching and the closure of pipeline.Be provided with after the magnetic valve, regulate under the suitable objective condition, can obstructedly overregulate manual modulation valve and adjustable electronic valve directly to start, just can normally implement the preparation process of said foam concrete, to further facilitate site operation in air pressure and pump pressure etc.
Also adopt the check-valves that is located at the foam delivery pipeline and is positioned at the blender upstream position, implement to prevent the backflow of foam.Its purpose obviously is, avoids owing to enter the foam backflow that is produced when mud surpasses the pressure that sets in the blender.
The foaming of said foam maker is the mixed liquor that adopts blowing agent and water, under compressed-air actuated effect, pass fine through hole of labyrinth-like and spraying technique repeatedly, and implements its foaming.
Said mud and foam mix through blender, are to adopt foam by several axially set through holes inputs of blender central hollow tube curb, and mud is in the sealing periphery and revolves that the spiral shell formula advances and axially mixed repeatedly, and implement that it is mixed uniformly.
What below provide respectively is the foaming of the preferred foam maker of the present invention and the technical scheme of mud and foams mix.The technological effect that experiment showed, said two kinds of technical schemes all is good.
The technical scheme that the described method that realizes the object of the invention prepares the main frame of light foam concrete is,
A kind of method as previously discussed prepares the main frame of light foam concrete, have casing, be mutually the electric control box of one with casing, be located at the travelling wheel of bottom of shell, be located at the casing interior air compressor that has motor, main air storage bag and connecting line at interior compressed air feedway, with the foam preparation device that comprises piston pump, foam maker and connecting line, its innovative point is:
A, also have the mud and the foams mix that comprise big pneumatic diaphragm pump and the blender, manual modulation valve, Pressure gauge and the magnetic valve that are connected with big pneumatic diaphragm pump pipeline that are located in the casing and prepare finished product light foam concrete device; Big pneumatic diaphragm pump is connected with the main air storage bag of compressed air feedway by being provided with the pipeline of the manual modulation valve, Pressure gauge and the magnetic valve that are used for regulating compressed air require; The charging aperture of big pneumatic diaphragm pump can be with matched with the mixer discharging opening of the supporting slurrying equipment of main frame; The blender discharging opening can be connected with the light foam concrete carrier pipe;
B, said foam preparation device also comprise little pneumatic diaphragm pump, the 1st minute air storage bag, source of the gas magnetic valve, the adjustable electronic valve that can regulate to supply with the blowing agent flow, water supply manual modulation valve, air feed manual modulation valve, confession foam manual modulation valve, gas supply electromagnetic valve, Pressure gauge and the 2nd fen air storage bag; The air storage bag was connected with main air storage bag by the pipeline that is provided with the air feed manual modulation valve in the 1st minute; Little pneumatic diaphragm pump is assured the road with air storage in the 1st fen and is connected, and the source of the gas magnetic valve is located on the 1st fen air storage bag and the pipeline that little pneumatic diaphragm pump is connected; Little pneumatic diaphragm pump inlet can be connected with the expanding foam solution reservoir pipeline of its phase configuration; The outlet of little pneumatic diaphragm pump is connected with the piston pump entrance pipe, and the adjustable electronic valve is located on little pneumatic diaphragm pump and the pipeline that piston pump is connected; Piston pump inlet can be connected with the cistern pipeline of its phase configuration, the water supply manual modulation valve is located on cistern and the pipeline that piston pump is connected; The inlet of the 2nd fen air storage bag is connected with main air storage bag with manometric pipeline by being provided with manual modulation valve, and its outlet is connected with foam maker by the pipeline that is provided with manual modulation valve and magnetic valve; The piston pump outlet is connected with the foam maker entrance pipe; The foam maker outlet is by supplying the foam manual modulation valve, and the mixer entrance pipeline for preparing finished product light foam concrete device with mud and foams mix is connected.
Technical scheme by above given main frame of the present invention can be understood, main frame of the present invention is owing to prepare finished product light foam concrete device with compressed air feedway, foam preparation device and mud and foams mix, the three is integrated in the main frame, thereby not only meet said preparation method's specification requirement, and its compact conformation, conveniently moving, control and regulate facility, institute takes up space little, especially working as the main frame horizontal projected area is constrained in the scope of on-the-spot loop wheel machine car area, this is in multilayer site operation process, and transportation is also very convenient up and down.
The further innovative point of main frame of the present invention is:
Said blender is made up of cylindric blender shell and the mud foams mix member with spiral plate that is located in the shell; The main shaft of said mud foams mix member is a hollow spindle, and hollow spindle can be connected with the foam maker pipeline; Hollow spindle is axially arranged with the radial direction through hole that several can allow foam pass through along it; Be connected with solid main shaft at front-end of spindle, on solid main shaft, be provided with the axial hybrid component of petal-shaped that several and shell lean; Fixedlying connected with the end cap of shell in the end, rear end of hollow spindle, is provided with the mud input pipe in the rear end of shell.
Said foam maker is made up of the cylindrical case of an end closure and the cylindrical metal silk compressing member that is located in the shell; Cylindrical metal silk compressing member connects airtight with the foam maker shell and cooperates; The sealing end of shell is provided with gas-liquid aqueous mixtures inlet tube; The other end of shell is provided with the foam outlet pipe.Said wire compressing member is to be similar to the steel wire lump that is used to wash.
More than given blender and the technical pattern of foam maker, be preferred for this invention, but be not limited to this.
On the connecting line of foam maker and blender, also be provided with the check-valves that is used for preventing the foam backflow, and be connected with the foam outlet spare that is used for detecting foam quality by triple valve.
The said main frame of the present invention also with the adjusting knob of its all manual modulation valves, all stretches outside casing, and with the switch of electromagnetism and adjustable electronic valve, concentrates to be arranged on the panel of electric control box.Do like this and can make on-the-spot grasp regulate convenient.
Compact more and be convenient to the consideration of site operation for main machine structure, main frame of the present invention the blowing agent reservoir and the reservoir of water that should possess, preferably all adopt storage bag.The present invention is listed in said blowing agent storage bag and water storage bag branch outside the main frame, so both can make things convenient for its carrying, also can make things convenient for the can of blowing agent or water, and can effectively reduce the volume of main frame.In the work progress, can by flexible pipe the blowing agent storage bag be connected with little pneumatic diaphragm pump respectively at the scene, the water storage bag is connected with piston pump.
After technique scheme is implemented, the control technique advanced person that preparation method of the present invention had, characteristics such as measuring raw materials is accurate, and foam quality is stable, and the foam breakage rate is little, and said foam concrete quality is good are conspicuous.And the compact conformation that main frame of the present invention had is reasonable, and convenient on-the-spot the use controlled easy to adjustly, is fit to organize continuous productive process and large tracts of land, characteristics such as rapid construction at many levels, is self-evident.
The specific embodiment
Below the contrast accompanying drawing is by the description of the specific embodiment, and the invention will be further described.
The said preparation method's of the present invention the specific embodiment as shown in Figure 1, and please be joined and read accompanying drawing 8.
A kind of preparation method of light foam concrete, comprise that employing is by the included foam maker 14 preparation foams of main frame, employing by with the mixer 28 preparation mud of the supporting common slurrying equipment of main frame, with by the included blender 16 of main frame mud and foams mix are prepared finished product light foam concrete and output, in the blowing agent, water and the compressed-air actuated metering that solve foam preparation and mixing, the control technique that the adjustable electronic valve 3 of employing manual modulation valve 1a, 1b and adjustable flow combines, and adopt foam operating pressure conveying technology commonly used; In the slurry transportation technology that solves mud and foams mix, adopt big pneumatic diaphragm pump 15 slurry conveyed technology by manual modulation valve 1c regulation and control; Adopt blender 16 to be located at the structure technology at big pneumatic diaphragm pump 15 contiguous positions, and will directly be delivered to the scene of building of certain altitude or certain distance through the prepared finished light foam concrete of blender 16 by same big pneumatic diaphragm pump 15.Its specific implementation process is: determine the kind and the proportioning of mud raw material on request, as cement: water=1: 0.5.Cement 25 enters mixer 28 through elevating hopper 26, screw elevator 27 and mixes formation mud with the water of cistern 13.The compressed air that starting air compressor 5 produces leads to the main air storage bag 6 that is provided with electromagnetic pressure protective valve 7.A road of main air storage bag 6 leads to the 1st fen air storage bag 8a.Air storage bag 8a was provided with Pressure gauge 9d in the 1st minute, used manual modulation valve 1e, adjustable this gas circuit air pressure.Air storage bag 8a was used for driving little pneumatic diaphragm pump 10 in the 1st minute, little pneumatic diaphragm pump 10 is used for directly drawing the blowing agent in the blowing agent storage bag 11, this pump is provided with Pressure gauge 9,1e regulates gas circuit air pressure herein with drawing formula manual modulation valve, when tolerance air pressure is suitable, presses manual modulation valve 1e and lock; And magnetic valve 2c is used for controlling the open and close of gas circuit, thereby controls the work of little pneumatic diaphragm pump 10.By being provided with Pressure gauge 9c, use the emitted dose of adjustable electronic valve 3 control blowing agents then, and accurately mix fully, form the mixed liquor of stoste and water with the water (inflow can be regulated with hand-operated valve 1a) of piston pump 12 suctions.Another road of main air storage bag 6 feeds the 2nd fen air storage bag 8b, air storage bag 8b was provided with Pressure gauge 9b in the 2nd minute, regulate tolerance and air pressure with manual modulation valve 1b, magnetic valve 2a control gas circuit opens and closes, can accurately regulate control tolerance, this road gas mixes with mixed liquor in piston pump 12 discharge nozzles, forms the mixture of stoste, water and air, the three reached accurate metering, fully mixed this moment, then entered foam maker 14.And foam maker 14 can be by the foam of foam outlet spare 19 outside direct injections generations, so that observe the quality of foam by the conversion of triple valve 18.Be adjusted to foam quality qualified after, the control valve on above said 2 gas circuits of locking then.Main air storage bag 6 also has one the tunnel to lead to big pneumatic diaphragm pump 15.Big pneumatic diaphragm pump 15 is provided with Pressure gauge 9a, regulates tolerance and air pressure with manual modulation valve 1c, and magnetic valve 2b control gas circuit opens and closes, thereby reaches the height or the distance of regulating control pumping foam concrete.Regulate that to carry out this road gas circuit adjusted block of valve after suitable fixed.Big pneumatic diaphragm pump 15 sucks the mud that stirs from mixer 28, entering blender 16 simultaneously through the discharge nozzle of discharging opening and foam that foam maker 14 is sent out well mixes, form light foam concrete, and then said foam concrete is delivered directly to certain height or distance.The said foam concrete of making advances the later stage maintenance again, the processing back forms said foam concrete product.And the foaming of the said foam maker 14 of the present invention is the mixed liquors that adopt blowing agent and water, under compressed-air actuated effect, pass fine through hole of labyrinth-like and spraying technique repeatedly, and implements its foaming.Said mud and foam mix through blender 16, are to adopt foam by several axially set through holes inputs of blender 16 central hollow tube curbs, and mud is in the sealing periphery and revolves that the spiral shell formula advances and axially mixed repeatedly technology, and implement that it is mixed uniformly.
The specific embodiment of main frame of the present invention is shown in accompanying drawing 1 to 7.
A kind of method as previously discussed prepares the main frame of light foam concrete, has casing 29, be mutually the electric control box 30 of one with casing 29, be located at the travelling wheel 31 of casing 29 bottoms, be located at the air compressor that has motor 5 in the casing 29, main air storage bag 6 and connecting line are at interior compressed air feedway I, with comprise piston pump 12, foam maker 14 and connecting line be at interior foam preparation device II, also has to be located to comprise big pneumatic diaphragm pump 15 and the blender 16 that is connected with big pneumatic diaphragm pump 15 pipelines in the casing 29, manual modulation valve 1c, Pressure gauge 9a and magnetic valve 2b prepare finished product light foam concrete device III at interior mud and foams mix; Big pneumatic diaphragm pump 15 is connected with the main air storage bag 6 of compressed air feedway I by being provided with the manual modulation valve 1c, the Pressure gauge 9a that are used for regulating compressed air require and the pipeline of magnetic valve 2b; The charging aperture of big pneumatic diaphragm pump 15 can be with matched with mixer 28 discharging openings of the supporting slurrying equipment I V of main frame; Blender 16 discharging openings can be connected with light foam concrete carrier pipe 17; Said foam preparation device II also comprises little pneumatic diaphragm pump the 10, the 1st minute air storage bag 8a, source of the gas magnetic valve 2c, the adjustable electronic valve 3 that can regulate to supply with the blowing agent flow, water supply manual modulation valve 1a, air feed manual modulation valve 1b, 1d, 1e, confession foam manual modulation valve 1f, gas supply electromagnetic valve 2a, Pressure gauge 9b and the 2nd fen air storage bag 8b; Air storage bag 8a was connected with main air storage bag 6 by the pipeline that is provided with air feed manual modulation valve 1e in the 1st minute; Little pneumatic diaphragm pump 10 is connected with the 1st fen air storage bag 8a pipeline, and source of the gas magnetic valve 2c is located on the 1st fen air storage bag 8a and the pipeline that little pneumatic diaphragm pump 10 is connected; Little pneumatic diaphragm pump 10 inlets can be connected with expanding foam solution reservoir 11 pipelines of its phase configuration; 10 outlets of little pneumatic diaphragm pump are connected with piston pump 12 entrance pipes, and adjustable electronic valve 3 is located on little pneumatic diaphragm pump 10 and the pipeline that piston pump 12 is connected; Piston pump 12 inlet can be connected with cistern 13 pipelines of its phase configuration, water supply manual modulation valve 1a is located on cistern 13 and the pipeline that piston pump 12 is connected; The inlet of the 2nd fen air storage bag 8b is connected with main air storage bag 6 by the pipeline that is provided with manual modulation valve 1d and Pressure gauge 9b, and its outlet is connected with foam maker 14 by the pipeline that is provided with manual modulation valve 1b and magnetic valve 2a; Piston pump 12 outlets are connected with foam maker 14 entrance pipes; Foam maker 14 outlets are by supplying foam manual modulation valve 1f, and blender 16 entrance pipes that prepare finished product light foam concrete device III with mud and foams mix are connected.Said blender 16 is made up of cylindric blender shell 16-1 and the mud foams mix member 16-2 with spiral plate 16-4 that is located in the shell 16-1; The main shaft 16-3 of said mud foams mix member 16-2 is a hollow spindle, and hollow spindle 16-3 can be connected with foam maker 14 pipelines; Hollow spindle 16-3 is axially arranged with the radial direction through hole 16-5 that several can allow foam pass through along it; Be connected with solid main shaft 16-6 at main shaft 16-3 front end, on solid main shaft 16-6, be provided with the axial hybrid component 16-7 of petal-shaped that several and shell 16-1 lean; Fixedly connected with the end cap of shell 16-1 in the end, rear end of hollow spindle 16-3, be provided with mud input pipe 16-8 in the rear end of shell 16-1.Said foam maker 14 is made up of the cylindrical case 14-1 of an end closure and the cylindrical metal silk compressing member 14-2 that is located in the shell 14-1; Cylindrical metal silk compressing member 14-2 connects airtight with foam maker shell 14-1 and cooperates; The sealing end of shell 14-1 is provided with gas-liquid aqueous mixtures inlet tube 14-3; The other end of shell 14-1 is provided with foam outlet pipe 14-4.On the connecting line of foam maker 14 and blender 16, also be provided with the check-valves 20 that is used for preventing the foam backflow, and be connected with the foam outlet spare 19 that is used for detecting foam quality by triple valve 18.
The present invention is by the experimental concrete application of 3 wheat harvesting periods, and its effect is extraordinary.