Foamed concrete foaming agent compounding device

Abstract

The application relates to a foam concrete foaming agent compounding device and belongs to the technical field of concrete. The foam concrete foaming agent compounding device comprises a stirring barrel, a stirring assembly, a driving motor, a feeding cylinder and a feeding pipe. The feeding pipe directly discharges the powdery foaming agent in the feeding cylinder into the interior of the stirred material. A control powdery foaming agent feeding speed adjusting assembly is arranged. The feeding pipe comprises a fixed pipe which is in communication with the interior of the feeding cylinder, an elongated pipe which slides along the length direction of the fixed rod and an electric telescopic rod which is used for driving the elongated pipe to slide on the fixed pipe. The electric telescopic rod drives the elongated pipe to slide on the fixed pipe. Finally, the elongated pipe is inserted into the slurry. Then, the powdery foaming agent is directly delivered into the interior of the slurry by the feeding cylinder after the feeding speed is adjusted by the adjusting assembly, the liquid surface foam layer is avoided, the powder dust flying and the foam hindering mixing are avoided, the influence of the slurry surface foam on the powder foaming agent feeding is reduced, and the stirring efficiency and the stability of the finished product quality are improved.

Description

Technical Field

[0001] This application relates to the technical field of concrete, and in particular to a foam concrete foaming agent compounding device. Background Technology

[0002] Foamed concrete is a lightweight porous material made from cement, admixtures, aggregates, additives and water as the base slurry. It is formed by introducing air bubbles and then mixing, molding and curing. Its performance depends on the stability of the foaming agent and the uniformity of mixing.

[0003] In the existing technology, some materials are first added to the mixing tank, and then the mixing blades are rotated by the motor to stir the materials. As the mixing blades continue to stir, the subsequent liquid raw materials are gradually added to the mixing tank from a height. Then, the dry powder foaming agent is added to the mixing tank at one time through high-level feeding for compounding. Finally, the foaming agent for foamed concrete is compounded by continuous stirring.

[0004] However, when the motor drives the stirring blades, a large amount of foam is easily generated on the surface of the slurry. Subsequent liquid raw materials added directly from high altitude will also generate a lot of foam. During the process of adding the dry powder foaming agent into the slurry quickly at one time through high-level feeding, dust is easily generated. At the same time, the foam on the surface of the slurry will also prevent the powder from directly contacting the slurry. Adding too much material at one time will also cause it to clump together, which will ultimately seriously affect the mixing efficiency and the quality of the finished product. Utility Model Content

[0005] In order to reduce the impact of slurry surface foam on the addition of powdered foaming agent and improve mixing efficiency and the stability of finished product quality, this application provides a foam concrete foaming agent compounding device.

[0006] This application provides a foam concrete foaming agent compounding device, which adopts the following technical solution:

[0007] A foamed concrete foaming agent compounding device includes a mixing tank, a mixing assembly, and a drive motor. The mixing tank is equipped with a feed cylinder for holding powdered foaming agent. The feed cylinder is connected to the interior of the mixing tank via a feed pipe. The feed pipe is extendable and used to directly discharge the powdered foaming agent from the feed cylinder into the mixed material. A component for controlling the feeding speed of the powdered foaming agent is provided between the feed cylinder and the feed pipe. The feed pipe includes:

[0008] A fixing pipe is disposed at the bottom of the feed cylinder and communicates with the inside of the feed cylinder;

[0009] An elongation tube, which is sleeved on a fixed tube and slides along the length of the fixed rod;

[0010] An electric telescopic rod is mounted on the feed cylinder and is used to drive the extension tube to slide on the fixed tube.

[0011] By adopting the above technical solution, when it is necessary to add powdered foaming agent to the slurry, the extension tube is first driven by an electric telescopic rod to slide on the fixed tube, and finally the extension tube is inserted into the slurry. Then, the powdered foaming agent is directly delivered into the slurry by adjusting the feeding speed through the feeding cylinder and adjusting the component, avoiding the foam layer on the liquid surface, avoiding dust flying and foam hindering mixing, reducing the impact of foam on the slurry surface on the addition of powdered foaming agent, and improving the mixing efficiency and the stability of the finished product quality.

[0012] Furthermore, the adjustment component includes:

[0013] A spiral shaft is rotatably disposed inside a feed cylinder and is used to discharge the powdered foaming agent inside the feed cylinder into a fixed pipe.

[0014] A discharge motor is mounted on the feed cylinder and is used to drive the screw shaft to rotate.

[0015] A controller is installed on the feed cylinder and is used to control the speed and start-up time of the discharge motor.

[0016] By adopting the above technical solution, the discharge motor drives the screw shaft to rotate, thereby realizing phased quantitative feeding. The controller controls the speed and start-up time of the discharge motor, thereby controlling the feeding speed and the amount of material fed at one time, reducing the probability of agglomeration caused by excessive feeding at one time, and improving the mixing efficiency.

[0017] Furthermore, the fixed pipe is equipped with a pressurizing component for rapidly discharging the powdered foaming agent from the feed pipe, the pressurizing component comprising:

[0018] A pressurizer, which is mounted on the feed cylinder and is used to generate high-pressure gas;

[0019] An air inlet pipe is used to connect the pressurizer and the fixed pipe. The air inlet pipe is used to discharge the high-pressure gas generated by the pressurizer into the fixed pipe and accelerate the discharge of material in the feed pipe.

[0020] The first check valve is installed on the extension tube and allows material in the extension tube to enter the mixing tank only.

[0021] By adopting the above technical solution, the high-pressure gas generated by the pressurizer is discharged into the fixed pipe through the air inlet pipe. The high-pressure gas accelerates the flow of powdered foaming agent in the feed pipe. Combined with the first one-way valve to prevent slurry backflow, it ensures that the powdered foaming agent is quickly and completely discharged into the slurry, reducing the probability of residue and blockage.

[0022] Furthermore, a diffusion nozzle for spraying out the powdered foaming agent inside the feed tube is provided on the side of the elongated tube away from the bottom of the feed cylinder, and the diffusion nozzle has a conical diffusion structure.

[0023] By adopting the above technical solution, the cone-shaped diffusion nozzle can spray powdered foaming agent into the slurry in a dispersed form, thereby increasing the contact area between the powder and the slurry and avoiding localized clumping.

[0024] Furthermore, a liquid inlet pipe is provided on the side wall near the bottom of the mixing tank. The liquid inlet pipe is used to discharge liquid materials into the mixing tank. A second one-way valve is provided on the liquid inlet pipe. The second one-way valve is only used to discharge materials in the liquid inlet pipe into the mixing tank.

[0025] By adopting the above technical solution, the liquid raw materials are injected from the bottom of the mixing tank, reducing the foam production caused by high-level liquid feeding. At the same time, the one-way valve prevents liquid backflow and ensures feeding stability.

[0026] Furthermore, the stirring assembly includes a stirring shaft and fixed stirring blades. Multiple sets of fixed stirring blades are spaced apart on the stirring shaft and rotate with the stirring shaft. Movable stirring blades are slidably disposed on the side of the stirring shaft near the liquid surface. A sliding groove is formed on the stirring shaft along the axial direction. The movable stirring blades are slidably disposed in the sliding groove by means of sliding blocks. The sliding blocks are disposed on the stirring shaft by means of locking components and are used to adjust the distance between the movable stirring blades and the liquid surface.

[0027] By adopting the above technical solution, when the movable stirring blade slides along the axis of the stirring shaft, it drives the sliding block to slide in the sliding groove, thereby adjusting the distance between the movable stirring blade and the liquid surface. After adjustment, it is locked and fixed by the locking component. By adjusting the distance between the movable stirring blade and the liquid surface, the probability of the movable blade disturbing the liquid surface and generating foam is reduced. At the same time, by having the fixed stirring blade and the movable stirring blade rotate together with the stirring shaft, the uniformity of mixing between the upper and lower layers of the slurry is enhanced, and the dissolution efficiency is improved.

[0028] Furthermore, the sliding block has multiple sets of locking holes spaced apart along the sliding direction, and the locking element is a locking bolt threaded on the stirring shaft. The locking bolt passes through a set of locking holes and is threaded on the stirring shaft.

[0029] By adopting the above technical solution, the position of the movable stirring blade can be quickly adjusted by using locking bolts and different locking holes, which facilitates the rapid adjustment of the position of the movable stirring blade on the stirring shaft.

[0030] Furthermore, a discharge assembly is provided at the bottom of the mixing tank to facilitate the discharge of internal materials. The discharge assembly includes:

[0031] A discharge pipe is provided at the bottom of the mixing tank and communicates with the inside of the mixing tank;

[0032] A discharge valve is installed on the discharge pipe and is used to control the opening or closing of the discharge pipe.

[0033] By adopting the above technical solutions, the unloading pipe facilitates the rapid discharge of the finished slurry after compounding, reducing residues. At the same time, the discharge valve precisely controls the opening and closing of the discharge, avoiding leakage or contamination.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. The retractable feed pipe is directly inserted into the slurry, avoiding the foam layer on the liquid surface. The controller controls the discharge motor to drive the screw shaft to rotate, thereby feeding the material in stages and in a quantitative manner. At the same time, high-pressure gas drives the powdered foaming agent to quickly enter the slurry, solving the problems of dust flying, clumping and foam hindering mixing.

[0036] 2. By adjusting the distance between the moving stirring blades and the liquid surface, the probability of foam generation is reduced. At the same time, the moving and fixed stirring blades work together to improve the stirring effect. The conical diffusion nozzle diffuses the powdered foaming agent, increasing the powder dissolution time and improving the uniformity of bubble distribution in the finished product. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the foamed concrete foaming agent compounding device of this application;

[0038] Figure 2 This is a schematic diagram of the foam concrete foaming agent compounding device of this application, in which the fixed frame, mixing tank, feeding cylinder and diffusion nozzle are partially sectionally viewed;

[0039] Figure 3 yes Figure 2 Enlarged schematic diagram of part A in the middle.

[0040] Reference numerals: 1. Fixed frame; 2. Mixing tank; 21. Liquid inlet pipe; 22. Second one-way valve; 3. Feed cylinder; 4. Feed pipe; 41. Fixed pipe; 42. Extension pipe; 421. Diffuser nozzle; 43. Electric telescopic rod; 5. Mixing assembly; 51. Mixing shaft; 511. Sliding groove; 52. Fixed mixing blade; 53. Movable mixing blade; 54. Sliding block; 55. Locking element; 56. Drive motor; 6. Adjusting assembly; 61. Spiral shaft; 62. Discharge motor; 7. Pressurizing assembly; 71. Pressurizer; 72. Air inlet pipe; 73. First one-way valve; 8. Discharge assembly; 81. Discharge pipe; 82. Discharge valve. Detailed Implementation

[0041] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0042] This application discloses a foam concrete foaming agent compounding device.

[0043] Reference Figure 1 A foamed concrete foaming agent compounding device includes a mixing tank 2, a mixing component 5, and a drive motor 56. The mixing tank 2 is equipped with a feed cylinder 3 for holding powdered foaming agent. The feed cylinder 3 is connected to the inside of the mixing tank 2 through a feed pipe 4. The feed pipe 4 is telescopic and is used to directly discharge the powdered foaming agent in the feed cylinder 3 into the mixed material. An adjustment component 6 is provided between the feed cylinder 3 and the feed pipe 4 to control the feeding speed and feeding time of the powdered foaming agent.

[0044] Reference Figure 2 and Figure 3 A mounting frame for supporting and fixing the mixing tank 2 is fixedly installed on the ground, and the feed cylinder 3 is fixedly installed on the mounting frame. The feed pipe 4 includes a fixed pipe 41, an extension pipe 42, and an electric telescopic rod 43. The fixed pipe 41 is fixedly installed on the bottom of the feed cylinder 3 and communicates with the inside of the feed cylinder 3. The extension pipe 42 is sleeved on the fixed pipe 41 and can slide along the length of the fixed rod. The electric telescopic rod 43 is fixedly installed on the feed cylinder 3 and is used to drive the extension pipe 42 to slide on the fixed rod, thereby adjusting the length of the feed pipe 4. Specifically, when the electric telescopic rod 43 drives the extension pipe 42 to slide away from the feed cylinder 3, the length of the feed pipe 4 increases and it inserts into the slurry inside the mixing tank 2, thereby avoiding the foam layer. When the electric telescopic rod 43 drives the extension pipe 42 to slide closer to the feed cylinder 3, the length of the feed pipe 4 shortens, and finally the feed pipe 4 slides out of the slurry, which facilitates the mixing assembly 5 to mix and stir the slurry.

[0045] Reference Figure 2 The adjusting component 6 includes a screw shaft 61, a discharge motor 62, and a controller. The screw shaft 61 is rotatably installed inside the feed cylinder 3. The screw shaft 61 is used to discharge the powdered foaming agent in the feed cylinder 3 into the fixed pipe 41, and finally directly into the slurry through the extension pipe 42 that extends into the slurry in the mixing tank 2. This reduces the impact of slurry surface foam on the powdered foaming agent during feeding, and also reduces the probability of the powdered foaming agent flying away. The discharge motor 62 is fixedly installed on the mounting frame, and the discharge motor 62 is connected to the feed cylinder 3 via the mounting frame. The feed cylinder 3 is fixedly connected, and the discharge motor 62 is used to drive the spiral shaft 61 to rotate. The controller is fixedly installed on the mounting bracket and is electrically connected to the discharge motor 62. The controller is used to control the speed and start-up time of the discharge motor 62, thereby controlling the discharge speed and discharge volume in the feed cylinder 3. Specifically, when the discharge motor 62 drives the spiral shaft 61 to rotate, the powdered foaming agent in the feed cylinder 3 is discharged into the fixed pipe 41, and finally comes into direct contact with the slurry in the mixing tank 2, so that the powdered foaming agent can be easily integrated into the slurry.

[0046] Reference Figure 3 A pressurizing assembly 7 is provided on the fixed pipe 41 for rapidly discharging the powdered foaming agent in the feed pipe 4. The pressurizing assembly 7 includes a pressurizer 71, a feed pipe 4, and a first one-way valve 73. The pressurizer 71 is fixedly installed on the side wall of the feed cylinder 3 and is used to generate high-pressure gas. The air inlet pipe 72 is used to connect the pressurizer 71 and the fixed pipe 41 and to discharge the high-pressure gas generated in the pressurizer 71 into the fixed pipe 41, thereby accelerating the discharge of material in the feed pipe 4. The first one-way valve 73 is fixedly installed on the extension pipe 42 and supplies power only to the extension pipe 4. The material in tank 2 enters the mixing tank 2; specifically, the extension tube 42 is driven by the electric telescopic rod 43 to slide in the fixed tube 41 and insert into the slurry. The first one-way valve 73 prevents the slurry in the mixing tank 2 from flowing back into the extension tube 42. Then, the discharge motor 62 is started and the powdered foaming agent in the feed cylinder 3 is discharged into the fixed tube 41 through the screw shaft 61. At the same time, the pressure device 71 is started and high-pressure gas is introduced into the fixed tube 41 through the air inlet pipe 72. Then, the first one-way valve 73 is opened to quickly discharge the powdered foaming agent into the slurry, thereby improving the mixing efficiency of the slurry and the powdered foaming agent.

[0047] Reference Figure 3 A diffusion nozzle 421 is provided on the side of the elongation tube 42 away from the bottom of the feed cylinder 3. The diffusion nozzle 421 has a conical diffusion structure. By pressurizing the pressurizing component 7, the diffusion nozzle 421 sprays the powdered foaming agent in the feed tube 4 in a dispersed manner, thereby reducing the probability of the powdered foaming agent clumping.

[0048] Reference Figure 2 A liquid inlet pipe 21 is fixedly installed on the side wall near the bottom of the mixing tank 2. The liquid inlet pipe 21 is used to discharge liquid materials into the mixing tank 2. A second one-way valve 22 is fixedly installed on the liquid inlet pipe 21. The second one-way valve 22 only allows the material in the liquid inlet pipe 21 to be discharged into the mixing tank 2. Compared with adding liquid materials to the mixing tank 2 from a height, the operation method of adding liquid materials to the mixing tank 2 from the bottom reduces the probability of foam generation. At the same time, the second one-way valve 22 reduces the probability of liquid material backflow.

[0049] Reference Figure 2 The mixing assembly 5 includes a mixing shaft 51 and fixed mixing blades 52. The mixing shaft 51 is rotatably installed inside the mixing tank 2. The drive motor 56 is fixedly installed on the fixed frame 1. The drive motor 56 is fixedly connected to the mixing shaft 51 through a coupling. The drive motor 56 is used to drive the mixing shaft 51 to rotate. Multiple sets of fixed mixing blades 52 are provided. Multiple sets of fixed mixing blades 52 are installed at intervals along the axis of the mixing shaft 51. Multiple sets of fixed mixing blades 52 rotate with the mixing shaft 51 to mix and stir the slurry in the mixing tank 2.

[0050] Reference Figure 3 A movable stirring blade 53 is slidably mounted on the side of the stirring shaft 51 near the liquid surface. The stirring shaft 51 has a sliding groove 511 along its axial direction. The movable stirring blade 53 is slidably mounted in the sliding block 54 via a sliding block 54. The sliding block 54 slides in the sliding groove 511, which facilitates the rotation of the movable stirring blade 53 by the stirring shaft 51. The sliding block 54 is mounted on the stirring shaft 51 by a locking member 55 and is used to adjust the distance between the movable stirring blade 53 and the liquid surface. The sliding block 54 has multiple sets of locking holes spaced apart along the sliding direction. The locking member 55 is a locking bolt threaded onto the stirring shaft 51. The locking bolt passes through a set of locking holes and is threaded onto the stirring shaft 51. By adjusting the position of the locking hole through which the locking bolt passes, the position of the sliding block 54 on the stirring shaft 51 can be adjusted, thereby adjusting the distance between the movable stirring blade 53 and the liquid surface.

[0051] Reference Figure 2 The bottom of the mixing tank 2 is provided with a discharge assembly 8 to facilitate the discharge of internal materials. The discharge assembly 8 includes a discharge pipe 81 and a discharge valve 82. The discharge pipe 81 is fixedly installed on the bottom of the mixing tank 2 and communicates with the inside of the mixing tank 2. The discharge pipe 81 is used to discharge the materials inside the mixing tank 2. The discharge valve 82 is fixedly installed on the discharge pipe 81 and is used to control the opening or closing of the discharge pipe 81. When it is necessary to stir the materials inside the mixing tank 2, the discharge valve 82 is closed, thereby closing the discharge pipe 81. When the stirring of the materials inside the mixing tank 2 is completed and the materials need to be discharged, the discharge valve 82 is opened, so that the discharge pipe 81 is opened and the materials inside the mixing tank 2 are discharged through the discharge pipe 81.

[0052] The working principle of this application embodiment is as follows:

[0053] The electric telescopic rod 43 drives the extension tube 42 to slide on the fixed tube 41 and insert into the slurry to avoid the foam layer. The screw shaft 61 delivers the powdered foaming agent in stages under the control of the controller. Then, the pressurizing component 7 introduces high-pressure gas to drive the powdered foaming agent to flow in the extension tube 42. Finally, the powder is evenly dispersed into the slurry through the conical diffusion nozzle 421. At the same time, liquid raw materials are injected through the bottom liquid inlet pipe 21 to reduce foam generation. The movable stirring blade 53 adjusts the distance between itself and the liquid surface along the sliding groove 511 to reduce the probability of bubble generation on the slurry surface. The fixed stirring blade 52 and the movable stirring blade 53 rotate together to enhance the mixing uniformity. Finally, the powder is dust-free, clump-free and efficiently dissolved. The low-foam liquid injection and dynamic stirring control significantly improve the foaming agent compounding efficiency and the stability of the finished product quality. It reduces the impact of the foam on the slurry surface on the addition of powdered foaming agent and improves the stirring efficiency and the stability of the finished product quality.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foamed concrete foaming agent compounding device, comprising a mixing tank (2), a mixing assembly (5), and a drive motor (56), characterized in that: The mixing tank (2) is provided with a feed cylinder (3) for holding powdered foaming agent. The feed cylinder (3) is connected to the inside of the mixing tank (2) through a feed pipe (4). The feed pipe (4) is telescopic and is used to directly discharge the powdered foaming agent in the feed cylinder (3) into the material being mixed. A regulating component (6) for controlling the feeding speed of the powdered foaming agent is provided between the feed cylinder (3) and the feed pipe (4). The feed pipe (4) includes: A fixed tube (41) is provided on the bottom of the feed cylinder (3) and communicates with the inside of the feed cylinder (3); An elongation tube (42) is sleeved on a fixed tube (41) and slides along the length of the fixed rod; An electric telescopic rod (43) is mounted on the feed cylinder (3) and is used to drive the extension tube (42) to slide on the fixed tube (41).

2. The foamed concrete foaming agent compounding device according to claim 1, characterized in that: The adjustment component (6) includes: The spiral shaft (61) is rotatably disposed in the feed cylinder (3) and is used to discharge the powdered foaming agent in the feed cylinder (3) into the fixed pipe (41); A discharge motor (62) is mounted on the feed cylinder (3) and is used to drive the screw shaft (61) to rotate; The controller is set on the feed cylinder (3) and is used to control the speed and start-up time of the discharge motor (62).

3. The foamed concrete foaming agent compounding device according to claim 2, characterized in that: The fixed pipe (41) is provided with a pressurizing component (7) for rapidly discharging the powdered foaming agent in the feed pipe (4), the pressurizing component (7) comprising: A pressure booster (71) is provided on the feed cylinder (3) and is used to generate high-pressure gas; The air inlet pipe (72) is used to connect the pressurizer (71) and the fixed pipe (41). The air inlet pipe (72) is used to discharge the high-pressure gas generated by the pressurizer (71) into the fixed pipe (41) and accelerate the discharge of the material in the feed pipe (4). The first check valve (73) is installed on the extension tube (42) and allows the material in the extension tube (42) to enter the mixing tank (2) only.

4. The foamed concrete foaming agent compounding device according to claim 3, characterized in that: The elongated tube (42) is provided with a diffusion nozzle (421) on the side away from the bottom of the feed cylinder (3) for spraying out the powdered foaming agent in the feed tube (4). The diffusion nozzle (421) has a conical diffusion structure.

5. The foamed concrete foaming agent compounding device according to claim 1, characterized in that: The mixing tank (2) has an inlet pipe (21) on the side wall near the bottom. The inlet pipe (21) is used to discharge liquid materials into the mixing tank (2). The inlet pipe (21) is equipped with a second check valve (22). The second check valve (22) is only used to discharge the materials in the inlet pipe (21) into the mixing tank (2).

6. The foamed concrete foaming agent compounding device according to claim 1, characterized in that: The stirring assembly (5) includes a stirring shaft (51) and fixed stirring blades (52). Multiple sets of fixed stirring blades (52) are spaced apart on the stirring shaft (51) and rotate with the stirring shaft (51). Movable stirring blades (53) are slidably disposed on the side of the stirring shaft (51) near the liquid surface. A sliding groove (511) is provided on the stirring shaft (51) along the axial direction. The movable stirring blades (53) are slidably disposed in the sliding groove (511) by means of sliding blocks (54). The sliding blocks (54) are disposed on the stirring shaft (51) by means of locking members (55) and are used to adjust the distance between the movable stirring blades (53) and the liquid surface.

7. The foamed concrete foaming agent compounding device according to claim 6, characterized in that: The sliding block (54) has multiple sets of locking holes spaced apart along the sliding direction. The locking element (55) is a locking bolt threaded on the stirring shaft (51). The locking bolt passes through a set of locking holes and is threaded on the stirring shaft (51).

8. The foamed concrete foaming agent compounding device according to claim 1, characterized in that: The bottom of the mixing tank (2) is provided with a discharge assembly (8) to facilitate the discharge of internal materials. The discharge assembly (8) includes: Discharge pipe (81), the discharge pipe (81) is set on the bottom of the mixing tank (2) and communicates with the inside of the mixing tank (2); Discharge valve (82) is provided on discharge pipe (81) and is used to control the opening or closing of discharge pipe (81).

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