Cement concrete foaming equipment

Abstract

The utility model relates to foamed concrete production technical field especially cement concrete foaming equipment, including mixing jar, the top of mixing jar is provided with the cover, the cover bottom is installed with the foaming bucket, the foaming bucket bottom is provided with the coaxial speed reduction mechanism, the first stirring shaft is installed in the foaming bucket through the sealing bearing, is provided with the stirring vane on the first stirring shaft, is set up a plurality of through -hole on the stirring vane, the coaxial speed reduction mechanism bottom is provided with the second stirring shaft, is provided with the second stirring rod on the second stirring shaft, the foaming agent delivery pump is set up in the foaming bucket bottom, and the output end of foaming agent delivery pump is linked with the foaming bucket inside intercommunication. The device rotates with the stirring vane in the process of rotating first stirring shaft, lets the foaming agent move on the stirring vane, and falls through the through -hole, to let the foaming agent be more delicate, and the first stirring shaft drives the second stirring shaft through the coaxial speed reduction mechanism, realizes the synchronous operation of foaming and stirring.

Description

Technical Field

[0001] This utility model relates to the field of foamed concrete production technology, and in particular to a cement concrete foaming equipment. Background Technology

[0002] Foamed concrete, also known as aerated concrete, is a special type of aerated concrete. Its pore structure and material properties are similar to those of aerated concrete; the difference lies only in the shape of the pores and the method of aeration. The production of foamed concrete typically requires the use of mixing equipment to uniformly mix all the raw materials together.

[0003] The existing mixing equipment can basically meet the normal use needs of foamed concrete production. However, since the main raw materials in foamed concrete, foaming agent and foam stabilizer, usually need to be foamed first using a special foaming machine, and then the foam is transported to the mixing equipment by a foaming pump to be mixed with cement and other raw materials, they need to be operated separately, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the main raw materials in foamed concrete, foaming agent and foam stabilizer, typically require separate operations. These operations are time-consuming and labor-intensive because they need to be foamed using a specialized foaming machine before being transported to a mixing device with cement and other raw materials using a foaming pump. Therefore, this invention proposes a cement concrete foaming device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a cement concrete foaming device, including a mixing tank, a cover on the top of the mixing tank, a foaming barrel installed at the bottom of the cover, a coaxial reduction mechanism at the bottom of the foaming barrel, a first stirring shaft installed inside the foaming barrel via a sealed bearing, one end of which passes through the foaming barrel and is connected to the coaxial reduction mechanism, stirring blades on the first stirring shaft are spirally shaped and have several through holes, a first feed inlet on one side of the mixing tank, a second feed inlet leading to the foaming barrel on the cover, a discharge outlet at the bottom of the mixing tank, a second stirring shaft at the bottom of the coaxial reduction mechanism, a second stirring rod on the second stirring shaft, and a foaming agent delivery pump at the bottom of the foaming barrel, the output end of the foaming agent delivery pump being connected to the inside of the foaming barrel.

[0007] Preferably, an observation window is provided on one side of the mixing tank.

[0008] Preferably, a plurality of first stirring rods are also provided on the first stirring shaft at the intervals of the stirring blades.

[0009] Preferably, the coaxial reduction mechanism includes a housing fixed to the bottom of the foaming tank, one end of the first stirring shaft extending into the housing and equipped with a first bevel gear, one end of the second stirring shaft passing through the housing via a bearing and equipped with a second bevel gear, a rotating shaft mounted inside the housing via a bearing seat, a third bevel gear mounted on the top outer side of the rotating shaft and meshing with the first bevel gear, and a fourth bevel gear mounted on the bottom outer side of the rotating shaft and meshing with the second bevel gear.

[0010] Preferably, a nitriding hardening layer is provided on the working surfaces of the first bevel gear, the second bevel gear, the third bevel gear, and the fourth bevel gear.

[0011] Preferably, the transmission ratio between the first bevel gear and the third bevel gear is 5:1, and the transmission ratio between the second bevel gear and the fourth bevel gear is 1:5.

[0012] Preferably, a dispersion disc is provided on the top outer side of the second stirring shaft, and a plurality of dispersion grooves are provided above the dispersion disc.

[0013] Preferably, the foaming bucket is suspended at the center of the interior of the mixing tank.

[0014] The cement concrete foaming equipment proposed in this utility model has the following advantages:

[0015] 1. During the rotation of the first stirring shaft, the stirring blades will rotate, allowing the foaming agent to move on the stirring blades and fall through the through holes, thus making the foaming agent more fine. The first stirring shaft drives the second stirring shaft through the coaxial reduction mechanism, allowing the foam and concrete raw materials to be mixed quickly, realizing the simultaneous foaming and mixing, and effectively improving production efficiency.

[0016] 2. After the first stirring shaft, along with several first stirring rods, starts working, the foaming agent will be dispersed, thereby improving the stirring effect of the foaming agent and reducing the time required for stirring the foaming agent.

[0017] 3. The dispersion disc rotates with the second mixing shaft, and the dispersion disc disperses the foaming agent in multiple directions through the dispersion tank, thereby increasing the number of foaming agent addition points and avoiding foaming agent accumulation, thus improving the concrete mixing effect in the mixing tank. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a cement concrete foaming device proposed in this utility model.

[0019] Figure 2 This is a structural schematic diagram of a cross-sectional view of a cement concrete foaming device proposed in this utility model.

[0020] Figure 3 for Figure 2 A magnified view of a portion at point A.

[0021] Figure 4 This is an enlarged structural diagram of a portion of the cement concrete foaming equipment proposed in this utility model. Figure 1 .

[0022] Figure 5 This is an enlarged structural diagram of a portion of the cement concrete foaming equipment proposed in this utility model. Figure 2 .

[0023] In the diagram: 1. Mixing tank; 2. Cover; 3. Foaming tank; 4. First stirring shaft; 5. Stirring blade; 6. Through hole; 7. First feed inlet; 8. Second feed inlet; 9. Discharge outlet; 10. Observation window; 11. Second stirring shaft; 12. Second stirring rod; 13. First stirring rod; 14. Foaming agent delivery pump; 15. Shell; 16. First bevel gear; 17. Second bevel gear; 18. Rotating shaft; 19. Third bevel gear; 20. Fourth bevel gear; 21. Dispersion disc; 22. Dispersion tank. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1: Refer to Figure 1-5A cement concrete foaming device includes a mixing tank 1, a cover 2 on the top of the mixing tank 1, a foaming barrel 3 fixedly installed at the bottom of the cover 2, a coaxial reduction mechanism at the bottom of the foaming barrel 3, a first stirring shaft 4 installed inside the foaming barrel 3 via a sealed bearing, one end of which passes through the foaming barrel 3 and is connected to the coaxial reduction mechanism, a stirring blade 5 fixedly installed on the first stirring shaft 4, the stirring blade 5 being spiral in shape and having several through holes 6, a first feed inlet 7 on one side of the mixing tank 1, a second feed inlet 8 on the cover 2 leading to the foaming barrel 3, a discharge outlet 9 at the bottom of the mixing tank 1, and a second stirring shaft 11 at the bottom of the coaxial reduction mechanism. The coaxial reduction mechanism includes components fixed to the bottom of the foaming barrel 3. The housing 15 of the part has a first stirring shaft 4, one end of which extends into the housing 15 and is fixedly mounted with a first bevel gear 16. One end of the second stirring shaft 11 passes through the housing 15 through a bearing and is fixedly mounted with a second bevel gear 17. A rotating shaft 18 is mounted inside the housing 15 through a bearing seat. A third bevel gear 19 is fixedly mounted on the top outer side of the rotating shaft 18 and meshes with the first bevel gear 16. A fourth bevel gear 20 is fixedly mounted on the bottom outer side of the rotating shaft 18 and meshes with the second bevel gear 17. A second stirring rod 12 is provided on the second stirring shaft 11. A foaming agent delivery pump 14 is provided at the bottom of the foaming tank 3, and the output end of the foaming agent delivery pump 14 is connected to the inside of the foaming tank 3.

[0026] Usage: Add the foaming agent to the foaming tank 3 through the second inlet 8, and add the concrete to the mixing tank 1 through the first inlet 7. Start the motor, and the motor output shaft will drive the first mixing shaft 4 to rotate. During the rotation of the first mixing shaft 4, the mixing blades 5 will also rotate, allowing the foaming agent to move on the mixing blades 5 and fall through the through-holes 6, thus making the foaming agent finer. The foaming agent after mixing will be transported to the mixing tank 1 through the foaming agent delivery pump 14. During the rotation of the first mixing shaft 4, the first bevel gear 16 will rotate. The first bevel gear 16 will drive the rotating shaft 18 to rotate through the third bevel gear 19. The rotating shaft 18 will drive the fourth bevel gear 20 to rotate. The fourth bevel gear 20 will drive the second mixing shaft 11 to rotate through the second bevel gear 17. The second mixing shaft 11 will drive several second mixing rods 11 to rotate, thus allowing the foaming agent to be quickly mixed with the concrete. It can achieve foaming while mixing cement and other raw materials, saving time and effort and effectively improving work efficiency.

[0027] Example 2: In Example 1, the foaming tank 3 is located at the edge of the mixing tank 1, which makes it very easy for the foamed concrete in the mixing tank 1 to be unevenly mixed. Based on Example 1, optimizations are made, referring to... Figure 1-5An observation window 10 is provided on one side of the mixing tank 1 to facilitate observation of the mixing of foamed concrete inside the mixing tank 1; the foaming bucket 3 is suspended in the center of the mixing tank 1, so that the foamed concrete inside the mixing tank 1 is mixed more evenly.

[0028] Example 3: In Example 1, after the spiral stirring blade 5 stirs the foaming agent, some of the foaming agent falls through the through hole 6, making the foaming agent finer; however, the stirring time is relatively long. Based on Example 1, optimizations are made, referring to... Figure 1-5 On the first stirring shaft 4 at the interval of the stirring blades 5, there are also a number of first stirring rods 13. After the first stirring shaft 4 works with the number of first stirring rods 13, the foaming agent will be dispersed, thereby improving the stirring effect of the foaming agent and reducing the time required for stirring the foaming agent.

[0029] Example 4: In Example 1, the coaxial reduction mechanism uses multiple bevel gears meshing for transmission; however, wear occurs between the working surfaces of these bevel gears. An optimization is made based on Example 1, referencing... Figure 1-5 The working surfaces of the first bevel gear 16, the second bevel gear 17, the third bevel gear 19, and the fourth bevel gear 20 are all provided with a nitriding hardening layer, thereby improving the mechanical properties of the first bevel gear 16, the second bevel gear 17, the third bevel gear 19, and the fourth bevel gear 20, thereby increasing the wear resistance of the first bevel gear 16, the second bevel gear 17, the third bevel gear 19, and the fourth bevel gear 20, and reducing wear and tear during the transmission process between the multiple bevel gears.

[0030] Example 5: In Example 1, the second stirring shaft 11 inside the mixing tank 1 needs to rotate at a low speed to reduce the flying of foamed concrete inside the mixing tank 1. This is an optimization based on Example 1, referencing... Figure 1-5 The transmission ratio between the first bevel gear 16 and the third bevel gear 19 is 5:1, and the transmission ratio between the second bevel gear 17 and the fourth bevel gear 20 is 1:5, making the transmission ratio between the first stirring shaft 4 and the second stirring shaft 11 25:1. This significantly reduces the rotational speed of the second stirring shaft 11, ensuring that the rotational speed of the second stirring shaft 11 within the mixing tank 1 is not too high, thus preventing foamed concrete from flying around inside the mixing tank 1 and reducing losses during the mixing process.

[0031] Example 6: In Example 1, the foaming agent added by the foaming agent delivery pump 14 to the inside of the cement is relatively concentrated, which is not conducive to the mixing of concrete in the mixing tank 1. Based on Example 1, optimizations are made, referring to... Figure 1-5A dispersion disc 21 is provided on the top outer side of the second mixing shaft 11. Several dispersion grooves 22 are provided above the dispersion disc 21. The lengths of the dispersion grooves 22 are not the same, so that after the foaming agent falls onto the dispersion disc 21, the dispersion disc 21 rotates with the second mixing shaft 11. The dispersion disc 21 disperses the foaming agent in multiple directions through the dispersion grooves 22, thereby increasing the position of foaming agent addition and avoiding the accumulation of foaming agent, thereby improving the concrete mixing effect in the mixing tank 1.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cement concrete foaming device, comprising a mixing tank (1), characterized in that, The top of the mixing tank (1) is provided with a cover (2), and the bottom of the cover (2) is provided with a foaming tank (3). The bottom of the foaming tank (3) is provided with a coaxial reduction mechanism. The foaming tank (3) is equipped with a first stirring shaft (4) through a sealed bearing, and one end of the first stirring shaft (4) passes through the foaming tank (3) and is connected to the coaxial reduction mechanism. The first stirring shaft (4) is provided with stirring blades (5), which are spiral in shape. Several through holes (6) are opened on the stirring blades (5). The bottom of the coaxial reduction mechanism is provided with a second stirring shaft (11), and the second stirring shaft (11) is provided with a second stirring rod (12). The bottom of the foaming tank (3) is provided with a foaming agent delivery pump (14), and the output end of the foaming agent delivery pump (14) is connected to the inside of the foaming tank (3).

2. The cement concrete foaming equipment according to claim 1, characterized in that, An observation window (10) is provided on one side of the mixing tank (1).

3. The cement concrete foaming equipment according to claim 1, characterized in that, Several first stirring rods (13) are also provided on the first stirring shaft (4) at the interval of the stirring blades (5).

4. The cement concrete foaming equipment according to claim 1, characterized in that, The coaxial reduction mechanism includes a housing (15) fixed to the bottom of the foaming tank (3). One end of the first stirring shaft (4) extends into the housing (15) and is equipped with a first bevel gear (16). One end of the second stirring shaft (11) passes through the housing (15) through a bearing and is equipped with a second bevel gear (17). A rotating shaft (18) is installed in the housing (15) through a bearing seat. A third bevel gear (19) is installed on the top of the outer side of the rotating shaft (18). The third bevel gear (19) meshes with the first bevel gear (16). A fourth bevel gear (20) is installed on the bottom of the outer side of the rotating shaft (18). The fourth bevel gear (20) meshes with the second bevel gear (17).

5. The cement concrete foaming equipment according to claim 4, characterized in that, The working surfaces of the first bevel gear (16), the second bevel gear (17), the third bevel gear (19), and the fourth bevel gear (20) are all provided with a nitriding hardening layer.

6. The cement concrete foaming equipment according to claim 4, characterized in that, The transmission ratio between the first bevel gear (16) and the third bevel gear (19) is 5:1, and the transmission ratio between the second bevel gear (17) and the fourth bevel gear (20) is 1:

5.

7. The cement concrete foaming equipment according to claim 1, characterized in that, A dispersion disk (21) is provided on the top of the outer side of the second stirring shaft (11), and a plurality of dispersion grooves (22) are provided above the dispersion disk (21).

8. The cement concrete foaming equipment according to claim 1, characterized in that, The foaming bucket (3) is suspended at the center of the inside of the mixing tank (1).

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