CN217454438U - Flue gas injection lightweight concrete stirring device - Google Patents

Abstract

The utility model discloses a flue gas injection lightweight concrete stirring device, which comprises a stirring container, a stirring shaft, stirring blades, a driving mechanism and a gas injection pipeline, wherein the stirring shaft is rotationally arranged in the stirring container; the stirring blade is positioned in the stirring container and is arranged on the stirring shaft; the driving mechanism is connected with the stirring shaft and drives the stirring shaft to rotate correspondingly; the gas injection pipeline has rich carbon gas filling opening and filling opening, and rich carbon gas filling opening is located the stirred vessel outward, and the filling opening is located the stirred vessel. The utility model provides a flue gas injection lightweight concrete agitating unit has simple structure, and usable rich carbon gas production foaming concrete, low in production cost just can alleviate the advantage that carbon discharged.

Description

Flue gas injection lightweight concrete agitating unit

Technical Field

The application relates to the technical field of foamed concrete, in particular to a flue gas injection lightweight concrete stirring device.

Background

The production of the building industry is one of main sources of greenhouse gas emission, the carbon emission accounts for 30% -40% of the carbon emission in China, along with the stable development of economy, the carbon emission of the building industry still has a growing space, or becomes a main growing source of the carbon emission in China, therefore, the reduction of the carbon emission of building material production and building construction operation becomes a main focus of responding to climate change, the popularization and application of low-carbon and negative-carbon technologies in buildings are enhanced, and the method becomes a new way for relieving the carbon emission pressure and solving the climate problem.

The technology of the foamed concrete brick in the related technology is that a foaming agent is mixed into concrete slurry, and CO generated by the foaming agent is generated after a period of foaming reaction ₂ And uniformly distributing the gas in the concrete slurry, and hardening the gas for a period of time to form the concrete foamed brick with a certain shape and thickness, wherein the concrete foamed brick is used for building walls and heat preservation. However, the foaming agent used in the related art foaming concrete block manufacturing technology does not absorb CO ₂ And the function of carbon fixation, and the foaming agent has certain cost, so that the production cost of the foamed concrete brick is higher.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a flue gas injection lightweight concrete mixing device, this flue gas injection lightweight concrete mixing device have simple structure, and usable carbon-rich gas production foaming concrete, low in production cost just can alleviate the advantage that carbon discharged.

The flue gas injection lightweight concrete stirring device comprises a stirring container, a stirring shaft, stirring blades, a driving mechanism and a gas injection pipeline, wherein the stirring shaft is rotatably arranged in the stirring container; the stirring blade is positioned in the stirring container and is arranged on the stirring shaft; the driving mechanism is connected with the stirring shaft and drives the stirring shaft to rotate correspondingly; the gas injection pipeline has rich carbon gas filling mouth and filling opening, rich carbon gas filling mouth is located outside the stirred vessel, the filling opening is located in the stirred vessel.

According to the utility model discloses flue gas injection lightweight concrete agitating unit pours into carbon-rich gas through solitary gas injection pipeline into to the concrete slurry in the stirred vessel in order to realize the foaming process, and gas injection adjustability and mechanical security are high from this. Moreover, the stirring shaft is separated from the gas injection pipeline and only needs to drive the stirring blade to rotate so as to realize stirring effect, so that the structure is simple and the mechanical strength is high. And the preparation of the foamed concrete can be realized only by injecting carbon-rich gas without a foaming agent, the preparation cost of the foamed concrete is low, and the carbon emission is relieved.

In some embodiments, the carbon-rich gas fill port is adjacent to a bottom wall of the stirred vessel.

In some embodiments, the stirring shaft is horizontally movable and/or vertically movable within the stirring vessel, and the gas injection pipe is horizontally movable and/or vertically movable within the stirring vessel.

In some embodiments, the stirring container is provided with a material filling port for filling concrete powder and a water filling port for filling water.

In some embodiments, the concrete powder is at least one of boiler slag, fly ash, desulfurized gypsum, steelworks ash, mine tailings ash, and concrete.

In some embodiments, the mixing container comprises a mixing chamber and a mixing cover, the mixing cover is detachably connected with the mixing chamber, and the material filling opening and the water filling opening are formed in the mixing cover.

In some embodiments, the agitator shaft is rotatably mounted to the agitator cap, and the drive mechanism comprises a motor mounted to the agitator cap and coupled to the agitator shaft.

In some embodiments, the carbon-rich gas fill port comprises a flue gas fill port or a carbon dioxide fill port.

In some embodiments, the carbon-rich gas injected by the carbon-rich gas injection port comprises any one of liquefied CO2, gaseous pure CO2, boiler emission clean flue gas, concentrated carbon-rich gas of boiler emission clean flue gas and gas turbine emission clean flue gas.

In some embodiments, the gas injection pipe is provided with at least one of a single nozzle, a multi-nozzle, a porous pipe, and an end face porous structure for constituting the injection port.

In some embodiments, the number of the stirring blades is multiple, and the stirring blades are arranged at intervals along the axial direction of the stirring shaft.

Drawings

Fig. 1 shows a flue gas injection lightweight concrete mixing apparatus according to an embodiment of the present invention.

Reference numerals:

100. a flue gas injection lightweight concrete stirring device; 1. a stirred vessel; 11. a stirring chamber; 12. a stirring cover; 2. a stirring shaft; 3. stirring blades; 4. a gas injection pipe; 41. a carbon-rich gas filling port; 411. a flue gas filling port; 412. a carbon dioxide filling port; 42. an injection port; 5. a drive mechanism; 6. a material filling port; 7. a water filling port.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A flue gas injection lightweight concrete mixing apparatus 100 according to an embodiment of the present invention will be described with reference to fig. 1.

According to the utility model discloses flue gas injection lightweight concrete agitating unit 100 includes stirred vessel 1, (mixing) shaft 2, stirring leaf 3, gas injection pipeline 4 and actuating mechanism 5. The stirring shaft 2 is rotationally arranged in the stirring container 1, the stirring blades 3 are positioned in the stirring container 1 and are arranged on the stirring shaft 2, and the driving mechanism 5 is connected with the stirring shaft 2 and is used for driving the stirring shaft 2 to rotate. The stirring shaft 2 drives the stirring blades 3 to rotate so as to stir the concrete slurry in the stirring container 1.

The gas injection pipe 4 has a carbon-rich gas filling port 41 and an injection port 42, the carbon-rich gas filling port 41 being located outside the stirred vessel 1, and the injection port 42 being located inside the stirred vessel 1. An external carbon-rich gas source head injects carbon-rich gas into the concrete slurry in the stirring container 1 through a carbon-rich gas filling port 41 of the gas injection pipeline 4, the carbon-rich gas source head can be a thermal power plant, and clean flue gas generated by the thermal power plant is the carbon-rich gas containing high-concentration CO 2.

According to the utility model discloses flue gas injection lightweight concrete agitating unit 100 pours into carbon-rich gas through solitary gas injection pipeline 4 to the concrete thick liquids in stirred vessel 1 into in order to realize the foaming process, and gas injection adjustability and mechanical security are high from this. Moreover, the stirring shaft 2 is separated from the gas injection pipeline 4 and only needs to drive the stirring blades 3 to rotate so as to realize stirring effect, so that the structure is simple and the mechanical strength is high. And the preparation of the foamed concrete can be realized only by injecting carbon-rich gas without a foaming agent, the preparation cost of the foamed concrete is low, and the carbon emission is relieved.

In some embodiments, carbon-rich gas fill port 41 is adjacent the bottom wall of stirred vessel 1.

Therefore, the carbon-rich gas enters the stirring container 1 from the carbon-rich gas filling port 41 and then enters the bottom of the stirring container 1, so that the carbon-rich gas can be in full contact with the concrete slurry, and the carbon-rich gas and the concrete slurry are fully mixed under the stirring of the stirring blade 3 to form foamed concrete with uniform foaming, and the quality of the foamed concrete is ensured.

In some embodiments, stirring shaft 2 can move horizontally and/or can move up and down within stirring vessel 1, and gas injection pipe 4 can move horizontally and/or can move up and down within stirring vessel 1.

The stirring shaft 2 may be moved within the stirring vessel 1 to more uniformly stir the concrete slurry, and the gas injection pipe 4 may be moved within the stirring vessel 1 to more uniformly inject the carbon-rich gas into various locations of the concrete slurry. From this, the (mixing) shaft 2 and gas injection pipeline 4 remove with each other supporting, can realize the even foaming to each position of concrete slurry in stirred vessel 1 sooner.

In some embodiments, the mixing container 1 is provided with a material filling port 6 for filling concrete powder and a water filling port 7 for filling water. Therefore, the injection proportion of the concrete powder and the water can be counted conveniently, and the quality of the finally molded foaming concrete is ensured.

In some embodiments, the concrete powder is at least one of boiler slag, fly ash, desulfurized gypsum, steelworks ash, mine tailings ash, and concrete. By adopting the powder except the concrete and the separated gypsum, waste utilization can be realized, and the manufacturing cost of the foamed concrete is further reduced.

In some embodiments, the mixing container 1 includes a mixing chamber 11 and a mixing lid 12, the mixing lid 12 is removably connected to the mixing chamber 11, and the material fill port 6 and the water fill port 7 are provided on the mixing lid 12.

Specifically, the agitator cap 12 is separably connected to the agitator chamber 11, thereby facilitating cleaning of the agitator cap 12 and the agitator chamber 11, and at the same time, the gas injection pipe 4 and the agitator shaft 2 may be installed on the agitator cap 12, and the movement of the gas injection pipe 4 and the agitator shaft 2 is realized by the separation movement of the agitator cap 12. Moreover, the material filling opening 6 and the water filling opening 7 are provided in the mixing lid 12, so that the mixing of the concrete slurry with a larger capacity can be realized at one time in the mixing container 1.

In some embodiments, the agitator shaft 2 is rotatably mounted to the agitator cap 12, and the drive mechanism 5 comprises a motor mounted to the agitator cap 12 and coupled to the agitator shaft 2.

From this, motor and (mixing) shaft 2 can be along with stirring lid 12 removes together, when guaranteeing the removal of (mixing) shaft 2 in teeter chamber 11, the motor keeps the drive to (mixing) shaft 2, and then guarantees the last stirring of stirring leaf 3 on the (mixing) shaft 2 to the concrete thick liquids.

The stirring chamber 11 may be formed as a stirring chamber having a square or rectangular cross-sectional shape, and the stirring lid 12 is movably fitted to the stirring chamber 11. The stirring cover 12 is movably matched on the stirring chamber 11 so that the gas injection pipeline 4 and the stirring shaft 2 can horizontally move in the stirring cavity, so that the gas injection pipeline 4 can movably inject carbon-rich gas into each position of the concrete slurry, and the stirring blade 3 on the stirring shaft 2 can movably stir the concrete slurry uniformly.

In some embodiments, the carbon-rich gas injected by the carbon-rich gas injection port 41 includes any one of liquefied CO2, gaseous pure CO2, boiler emission clean flue gas, concentrated carbon-rich gas of boiler emission clean flue gas, and gas turbine emission clean flue gas. The carbon-rich gas filling port 41 includes a flue gas filling port 411 or a carbon dioxide filling port 412.

That is, when the carbon-rich gas filling port 41 can be one of the flue gas filling port 411 or the carbon dioxide filling port 412, and the carbon-rich gas filling port 41 is the carbon dioxide filling port 412, liquefied CO2 and gaseous pure CO2 can be introduced into the concrete slurry from the carbon dioxide filling port 412. When the carbon-rich gas filling port 41 is the flue gas filling port 411, the carbon-rich gas obtained by concentrating the clean flue gas discharged from the boiler, the concentrated clean flue gas discharged from the boiler and the concentrated clean flue gas discharged from the gas turbine can be introduced into the concrete slurry through the flue gas filling port 41161, so that the carbon emission is reduced.

In some embodiments, the gas injection pipe 4 is provided with at least one of a single nozzle, a multi-nozzle, a porous pipe, and an end face porous structure for constituting the injection port 42. That is, the number of the injection ports 42 may be one or more, through holes may be directly formed in the gas injection pipe 4 to form the injection ports 42, or a nozzle or an end face porous structure may be installed on the gas injection pipe 4, and the injection ports 42 are formed on the nozzle or the end face porous structure.

As shown in fig. 1, a single nozzle is provided at the lower end of the gas injection pipe 4, and the single nozzle forms one injection port 42.

In some embodiments, the number of the stirring vanes 3 is plural, and the plural stirring vanes 3 are arranged at intervals along the axial direction of the stirring shaft 2. Therefore, the stirring range of the stirring blades 3 is wide, and the stirring effect of the stirring blades 3 is further improved. For example, the axial direction of the stirring shaft 2 is the up-down direction, and a plurality of stirring blades 3 are arranged at intervals in the up-down direction, so as to better stir the concrete slurry.

The following describes a method for preparing the foamed concrete by taking carbon-rich gas as clean flue gas discharged by a boiler as an example.

Concrete powder and water are injected into the stirring container 1 through the material filling port 6 and the water filling port 7, and the stirring shaft 2 is driven by the motor to rotate during the injection, so that concrete slurry with the temperature of 15-90 ℃ is formed. The clean flue gas discharged by the boiler is filled into the concrete slurry through the gas injection pipeline 4, and forms the foamed concrete brick for directly fixing the flue gas and CO2 by utilizing aeration and bubble reaction and then hardening reaction for a certain time, thereby realizing the trapping, sealing and utilization of CO2 in the flue gas with low cost. The CO2 bubbles in the foamed concrete have good heat insulation and heat preservation performance, and further can be used for building wall construction and heat preservation, and the effect is good.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (11)

1. The utility model provides a flue gas injection lightweight concrete agitating unit which characterized in that includes:

a stirred vessel;

the stirring shaft is rotatably arranged in the stirring container;

the stirring blade is positioned in the stirring container and is arranged on the stirring shaft;

the driving mechanism is connected with the stirring shaft and drives the stirring shaft to rotate correspondingly; and

the gas injection pipeline, the gas injection pipeline has rich carbon gas filling mouth and filling opening, rich carbon gas filling mouth is located outside the stirred vessel, the filling opening is located in the stirred vessel.

2. The flue gas injection lightweight concrete mixing apparatus of claim 1, wherein said carbon-rich gas injection port is adjacent to a bottom wall of said mixing vessel.

3. The flue gas injection lightweight concrete mixing apparatus according to claim 1, wherein the stirring shaft is horizontally movable and/or vertically movable within the stirring vessel, and the gas injection pipe is horizontally movable and/or vertically movable within the stirring vessel.

4. The flue gas injection lightweight concrete mixing device according to claim 1, wherein a material filling port for filling concrete powder and a water filling port for filling water are provided on the mixing container.

5. The flue gas injection lightweight concrete mixing apparatus of claim 4, wherein the concrete powder is at least one of boiler slag, fly ash, desulfurized gypsum, steelworks ash, mine tailings ash and concrete.

6. The flue gas injection lightweight concrete mixing apparatus according to claim 4, wherein said mixing vessel comprises a mixing chamber and a mixing cover, said mixing cover is detachably connected to said mixing chamber, and said material injection port and said water injection port are provided on said mixing cover.

7. The flue gas injection lightweight concrete mixing apparatus of claim 6, wherein said agitator shaft is rotatably mounted to said agitator cap, and said drive mechanism comprises a motor mounted to said agitator cap and connected to said agitator shaft.

8. The flue gas injection lightweight concrete mixing device according to claim 1, wherein the carbon-rich gas injection port comprises a flue gas injection port or a carbon dioxide injection port.

9. The flue gas injection lightweight concrete mixing apparatus according to claim 8, wherein the carbon-rich gas injected by the carbon-rich gas injection port comprises any one of liquefied CO2, gaseous pure CO2, boiler emission clean flue gas, concentrated carbon-rich gas of boiler emission clean flue gas and gas turbine emission clean flue gas.

10. The flue gas injection lightweight concrete mixing apparatus according to claim 8, wherein the gas injection pipe is provided with at least one of a single nozzle, a multi-nozzle, a porous pipe, and an end face porous structure for constituting the injection port.

11. The flue gas injection lightweight concrete mixing apparatus according to claim 1, wherein the number of said stirring vanes is plural, and a plurality of said stirring vanes are arranged at intervals in the axial direction of said stirring shaft.

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