CN211440549U

CN211440549U - Foam concrete preparation equipment

Info

Publication number: CN211440549U
Application number: CN201922176653.6U
Authority: CN
Inventors: 马永政; 王永炀; 陈雨炀; 张子轩; 王贤军; 温小栋; 冯蕾
Original assignee: Ningbo University of Technology
Current assignee: Ningbo University of Technology
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-08
Anticipated expiration: 2029-12-06

Abstract

The utility model relates to a foam concrete preparation equipment, this foam concrete preparation equipment include frame, water tank, agitator, hybrid tube and booster mechanism, and wherein agitator and hybrid tube arrange in proper order along the direction of delivery of raw materials, and the water tank is located in the frame and is used for supplying water to the agitator, and booster mechanism locates on the circulation route of hybrid tube and output tube, the utility model has the advantages of: weigh the cement raw materials through the agitator, mix and the stirring, before the raw materials after the stirring is carried to the output tube via the hybrid tube, foaming agent after the pressurization to the input in the hybrid tube, so not only can realize the mixture of raw materials and foaming agent, the foaming agent that has pressure can also provide the preliminary power of carrying for the raw materials, and simultaneously, the raw materials realizes the secondary pressurization through locating the booster mechanism between hybrid tube and the output tube, the cement raw materials after having guaranteed to mix has higher pressure when leaving through the output tube transport, and then increase the lift, the extension is carried the distance.

Description

Foam concrete preparation equipment

Technical Field

The utility model relates to a foam concrete preparation field especially relates to a foam concrete preparation equipment.

Background

The foamed concrete is a novel light heat-insulating material containing a large number of closed air holes, which is formed by adding a chemical foaming agent or a physical foaming agent into slurry prepared from a cementing material, an admixture, a modifier, brine and the like after foaming, mixing, stirring, casting and naturally curing.

The existing foam concrete equipment still has defects, and the general principle and the working process are as follows: the air compressor provides high-pressure gas required by foaming for the foaming machine and provides a power source for high-pressure conveying; the materials are stirred by the stirrer and then are sent into the mixing generator by the material conveying equipment, and are mixed with the foaming agent conveyed by the foaming machine to generate foaming materials, and the foaming materials are directly sent to high altitude for pouring by the high pressure pipeline. This kind only relies on the produced pressure of air compressor machine to carry the raw materials, though increased the lift to a certain extent, still not high enough, transport distance is not far enough, causes the good concrete of foaming to carry to high-rise, and then causes the influence to the construction progress.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a foam concrete preparation equipment that transport distance is far away.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the equipment for preparing the foam concrete comprises

The frame is provided with an output pipe for outputting the prepared foam concrete;

the stirrer is arranged on the frame and comprises a first feed inlet for feeding raw materials for preparing the foam concrete and a discharge outlet for discharging the raw materials;

the mixing pipe is used for mixing the raw materials and the foaming agent subjected to preliminary pressurization, comprises an inlet end communicated with the discharge port of the stirrer and an outlet end communicated with the output pipe of the rack, and is provided with a second feed port for the pressurized foaming agent to enter;

the method is characterized in that: also comprises

And a pressurizing mechanism for pressurizing the outlet pipe for the second time, and arranged on the flow path of the mixing pipe and the outlet pipe.

In order to ensure that the raw materials are pressurized for the second time before being output, preferably, a guide pipe is arranged between the output end of the mixing pipe and the output pipe, the pressurizing mechanism comprises a pressurizing piece arranged on the guide pipe and a driving mechanism used for driving the pressurizing piece to pressurize the guide pipe, and the input end of the pressurizing piece is connected with the driving mechanism, so that the guide pipe can guide the mixed raw materials to the output pipe, and can ensure that the raw materials have enough pressurizing space and pressurizing distance before being output, thereby ensuring that the foam concrete output by the output pipe has enough power and ensuring the increase of the lift of the whole equipment.

Specifically, the pressurizing part comprises a cylinder body, a piston rod and a first piston, the first end of the piston rod is connected to the output end of the driving mechanism, the first piston is installed at the second end of the piston rod, the piston rod and the first piston are both accommodated in the cylinder body and can slide in a reciprocating mode along the axis of the cylinder body under the driving of the driving mechanism so as to pressurize in the flow guide pipe, the pressurizing part is designed in a piston and cylinder body matched mode, the structure is simple and stable, the failure rate is low, later maintenance is convenient, and the loss of power in the transmission process can be reduced to the maximum degree through fewer parts.

In order to improve the conveying efficiency of the draft tube, preferably, the draft tube comprises two U-shaped tubes which are sequentially arranged along the raw material conveying direction and have opposite opening ends and two connecting tubes for connecting corresponding ends of the two U-shaped tubes, and the two U-shaped tubes and the two connecting tubes jointly form two feeding channels which are arranged side by side.

Preferably, the pressurizing parts are two and are respectively connected to the corresponding connecting pipes, the two piston rods synchronously slide under the driving of the driving mechanism, and the sliding directions of the two piston rods are opposite, so that the design that the moving directions of the two piston rods are opposite can ensure that the two piston rods alternately pressurize the raw materials in the guide pipe without interruption, and further the continuity of material conveying is ensured.

In order to ensure that the materials cannot flow back when pressurized, a first one-way valve which only allows the raw materials before pressurization to flow from the output end of the mixing pipe to the flow guide pipe is arranged at the upstream of the feeding channel; and a second one-way valve only used for allowing the pressurized raw materials to flow from the guide pipe to the output pipe is arranged at the downstream of the feeding channel.

Specifically, the first check valve and the second check valve are valve balls arranged between the ports of the U-shaped pipes and the corresponding connecting pipes.

In order to ensure that power is provided for the pressurizing piece, the driving mechanism comprises an oil cylinder, a driving pump and an oil tank communicated with the oil cylinder, at least part of the first end of the piston rod is exposed out of the cylinder body and is accommodated in the oil cylinder, the second end of the piston rod is provided with a second piston, the piston rod can drive the first piston and the second piston to synchronously slide in a reciprocating mode along the axial direction of the cylinder body under the action of the driving pump, and other driving modes can be adopted to drive the pressurizing piece.

In order to ensure smooth circulation of the preliminarily mixed raw materials in the pipeline and preliminary conveying kinetic energy, the frame is further provided with a compressor for preliminarily pressurizing the foaming agent.

In order to ensure accurate feeding, preferably, the stirrer comprises a feeding bin for weighing and premixing raw materials and a stirring bin for stirring, the feeding bin and the stirring bin are arranged up and down and are communicated with each other, and the feeding bin is provided with the first feeding hole.

Compared with the prior art, the utility model has the advantages of: this foam concrete preparation equipment is weighed cement raw materials through the agitator, mix and the stirring, raw materials after the stirring carry to the output tube before via the hybrid tube, to the foaming agent after the input pressurization in the hybrid tube, not only can realize the mixture of raw materials and foaming agent like this, the foaming agent that has pressure can also provide the preliminary power of carrying for the raw materials, and simultaneously, the raw materials realizes the secondary pressurization through locating the booster mechanism on hybrid tube and the output tube circulation route, guaranteed that the cement raw materials after the mixture has higher pressure when leaving through the output tube transport, and then increase the lift, the extension delivery distance.

Drawings

FIG. 1 is a schematic view of the overall structure of an apparatus for preparing foam concrete according to an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure of FIG. 1 from another angle;

fig. 3 is a schematic view illustrating a principle of cooperation between the driving mechanism and the pressurizing member according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating the cooperation of the fluid guide tube and the pressurizing member according to an embodiment of the present invention.

Detailed Description

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

As shown in fig. 1 to 4, in the present embodiment, the apparatus for preparing foamed concrete comprises a frame 1, a water tank 3, a stirrer 2, a mixing pipe 4 and a pressurizing mechanism 5, wherein the frame 1 is provided with an output pipe 1a, the foam concrete made by the device is conveyed to a high-rise building through the output pipe 1a, the stirrer 2 is arranged on the frame 1, the stirrer 2 is used for primarily stirring raw material water, cement and coal ash, so that the stirrer 2 comprises a first feeding hole for feeding raw materials for preparing foam concrete and a first discharging hole for discharging the raw materials, and still be equipped with water tank 3 on frame 1 in order to supply water to agitator 2, specifically speaking, agitator 2 includes the feeding storehouse 21 that is used for weighing and pre-mixing the raw materials and the stirring storehouse 22 that is used for the stirring, and feeding storehouse 21 and stirring storehouse 22 are arranged from top to bottom and communicate each other, offer foretell first feed inlet on feeding storehouse 21.

In this embodiment, the stirred raw material is guided to a mixing tube 4 arranged downstream of the stirrer 2, in order to facilitate adding foaming agent into the mixing tube 4, the mixing tube 4 comprises an inlet end communicated with a first discharge port of the stirrer 2 and an outlet end communicated with an output tube 1a of the frame 1, and the mixing tube 4 has a second inlet port for the pressurized foaming agent, the foaming agent is stored in an external container and is firstly diluted, the diluted foaming agent is conveyed to a compressor 7 also arranged on the frame 1 through a peristaltic pump 8 arranged on the frame 1, is preliminarily pressurized by the compressor 7 to form a pressurized foaming agent, and is conveyed into the mixing tube 4 through a pipeline, in this process, not only the mixing of the raw material and the foaming agent is realized, but also the pressurized foaming agent can provide preliminary power for conveying the raw material, provides a power foundation for subsequent pressurization, and the raw materials and the foaming agent are mixed to form foam concrete, namely the foam concrete.

In the present embodiment, as described above, the requirement for delivering the foamed concrete to the high-rise building cannot be satisfied simply by the power supplied by the compressor 7, and therefore, the pressurizing mechanism 5 for secondarily pressurizing the outlet pipe 1a is provided on the flow path between the mixing pipe 4 and the outlet pipe 1a, specifically, between the mixing pipe 4 and the outlet pipe 1a, the flow guide pipe 6 is provided between the outlet end of the mixing pipe 4 and the outlet pipe 1a, the pressurizing mechanism 5 includes the pressurizing member 51 mounted on the flow guide pipe 6 and the driving mechanism 52 for driving the pressurizing member 51 to pressurize the flow guide pipe 6, and the input end of the pressurizing member 51 is connected to the driving mechanism 52; wherein:

the pressurizing member 51 comprises a cylinder 511, a piston rod 512 and a first piston 513, wherein a first end of the piston rod 512 is connected to an output end of the driving mechanism 52, the first piston 513 is installed at a second end of the piston rod 512, and the piston rod 512 and the first piston 513 are both accommodated in the cylinder 511 and can slide back and forth along the axis of the cylinder 511 under the driving of the driving mechanism 52 so as to pressurize the flow guide pipe 6; and the honeycomb duct 6 includes two U-shaped pipes 61 that arrange in proper order and the open end is relative and be used for connecting two connecting pipes 62 that the U-shaped pipe 61 corresponds the end along raw materials direction of delivery, two U-shaped pipes 61 and two connecting pipes 62 form two feeding passageway 6a of arranging side by side jointly, honeycomb duct 6's setting not only can be with the raw materials water conservancy diversion after mixing to output tube 1a, can also guarantee that the raw materials has sufficient pressurized space and pressurization distance before the output, and then guaranteed that the foam concrete of output tube 1a output has sufficient power, the increase of whole equipment lift has been guaranteed, and pressure boost 51 adopts piston and cylinder body complex design, simple structure is stable and the fault rate is low, make things convenient for later maintenance, and, less part can also the loss of maximum reduction power in transmission process.

In this embodiment, two pressurizing members 51 are respectively connected to the corresponding connecting pipes 62, and the two piston rods 512 synchronously slide under the driving of the driving mechanism 52, and the sliding directions are opposite, so that the design that the moving directions of the two piston rods 512 are opposite can ensure that the two piston rods 512 alternately pressurize the raw materials in the draft tube 6 without interruption, thereby ensuring the continuity of material transportation.

In this embodiment, a first check valve 63 is disposed upstream of the feeding passage 6a, through which only the raw material before pressurization flows from the output end of the mixing pipe 4 to the flow guiding pipe 6; and a second one-way valve 64 for only allowing the pressurized raw materials to flow from the guide pipe 6 to the output pipe 1a is arranged at the downstream of the feeding channel 6a, wherein the first one-way valve 63 and the second one-way valve 64 are valve balls arranged between the ports of the U-shaped pipes 61 and the corresponding connecting pipes 62.

In this embodiment, the driving mechanism 52 includes an oil cylinder 521, a driving pump 524, and an oil tank 522 communicated with the oil cylinder 521, a first end of the piston rod 512 is at least partially exposed from the cylinder 511 and is accommodated in the oil cylinder 521, and a second end of the piston rod 512 is provided with a second piston 523, the piston rod 512 can drive the first piston 513 and the second piston 523 to synchronously slide back and forth along the axial direction of the cylinder 511 under the action of the driving pump 524, although the driving mechanism 52 may also adopt other driving forms as long as the pressurization of the pressurization member 51 can be achieved.

The working process of the foam concrete preparation equipment is as follows:

the raw materials are put into a feeding bin 21 of a stirrer 2, the raw materials are weighed and premixed, the mixed raw material slurry enters a stirring bin 22 to be stirred, the raw material slurry which is uniformly stirred enters a mixing pipe 4, a peristaltic pump 8 works at the moment, the diluted foaming agent is pumped into an external container, a compressor 7 works simultaneously to pump gas into the foaming agent, the foaming agent is preliminarily pressurized, so that the foaming agent has pressure when entering the mixing pipe 4, then the foaming agent with pressure and the raw material slurry are fully mixed in the mixing pipe 4 and are conveyed to the output pipe 1a through the guide pipe 6 under the action of air pressure difference, during the process of passing through the draft tube 6, the pressurizing member 51 continuously pressurizes the raw slurry in the draft tube 6 for the second time under the action of the driving mechanism 52, thereby ensuring that the raw slurry has sufficient power to be delivered to the high-rise building when it leaves the outlet pipe 1 a.

Claims

1. A foam concrete preparation equipment comprises

A frame (1) having an output pipe (1a) for outputting the prepared foam concrete;

the stirrer (2) is arranged on the rack (1) and comprises a first feeding hole for feeding raw materials for preparing the foam concrete and a discharging hole for discharging the raw materials;

the mixing pipe (4) is used for mixing the raw materials and the foaming agent subjected to preliminary pressurization, and comprises an inlet end communicated with a discharge port of the stirrer (2) and an outlet end communicated with an output pipe (1a) of the rack (1), and the mixing pipe (4) is provided with a second feed port for the pressurized foaming agent to enter;

the method is characterized in that: also comprises

And a pressurizing mechanism (5) for pressurizing the outlet pipe (1a) for the second time, and provided on the flow path of the mixing pipe (4) and the outlet pipe (1 a).

2. The apparatus for preparing foamed concrete according to claim 1, characterized in that: a guide pipe (6) is arranged between the output end of the mixing pipe (4) and the output pipe (1a), the pressurizing mechanism (5) comprises a pressurizing piece (51) arranged on the guide pipe (6) and a driving mechanism (52) used for driving the pressurizing piece (51) to pressurize the guide pipe (6), and the input end of the pressurizing piece (51) is connected with the driving mechanism (52).

3. The apparatus for preparing foamed concrete according to claim 2, characterized in that: the pressurizing piece (51) comprises a cylinder body (511), a piston rod (512) and a first piston (513), wherein the first end of the piston rod (512) is connected to the output end of the driving mechanism (52), the first piston (513) is installed at the second end of the piston rod (512), and the piston rod (512) and the first piston (513) are accommodated in the cylinder body (511) and can slide in a reciprocating mode along the axis of the cylinder body (511) under the driving of the driving mechanism (52) so as to pressurize the flow guide pipe (6).

4. The apparatus for preparing foamed concrete according to claim 3, characterized in that: the honeycomb duct (6) comprises two U-shaped pipes (61) which are sequentially arranged along the raw material conveying direction and have opposite opening ends and two connecting pipes (62) which are used for connecting corresponding ends of the two U-shaped pipes (61), and the two U-shaped pipes (61) and the two connecting pipes (62) jointly form two feeding channels (6a) which are arranged side by side.

5. The apparatus for preparing foamed concrete according to claim 4, characterized in that: the pressurizing pieces (51) are two and are respectively connected to the corresponding connecting pipes (62), and the two piston rods (512) synchronously slide under the driving of the driving mechanism (52) and have opposite sliding directions.

6. The apparatus for preparing foamed concrete according to claim 4, characterized in that: a first one-way valve (63) which is only used for the raw materials before pressurization to flow to the guide pipe (6) from the output end of the mixing pipe (4) is arranged at the upstream of the feeding channel (6 a); and a second one-way valve (64) which is only used for allowing the pressurized raw materials to flow from the guide pipe (6) to the output pipe (1a) is arranged at the downstream of the feeding channel (6 a).

7. The apparatus for preparing foamed concrete according to claim 6, characterized in that: the first check valve (63) and the second check valve (64) are valve balls arranged between the port of each U-shaped pipe (61) and the corresponding connecting pipe (62).

8. The apparatus for preparing foamed concrete according to claim 5, characterized in that: the driving mechanism (52) comprises an oil cylinder (521), a driving pump (524) and an oil tank (522) communicated with the oil cylinder (521), at least part of a first end of the piston rod (512) is exposed out of the cylinder body (511) and is accommodated in the oil cylinder (521), a second end of the piston rod (512) is provided with a second piston (523), and the piston rod (512) can drive the first piston (513) and the second piston (523) to synchronously slide in a reciprocating mode along the axial direction of the cylinder body (511) under the action of the driving pump (524).

9. The apparatus for preparing foamed concrete according to claim 1, characterized in that: the frame (1) is also provided with a compressor (7) for preliminary pressurisation of the foaming agent.

10. A foam concrete preparation apparatus according to any one of claims 1 to 9 wherein: the stirrer (2) comprises a feeding bin (21) for weighing and premixing raw materials and a stirring bin (22) for stirring, the feeding bin (21) and the stirring bin (22) are arranged up and down and are communicated with each other, and the first feeding hole is formed in the feeding bin (21).