Double-pouring stirring arrangement structure for aerated concrete production

Abstract

The utility model discloses a double-pouring stirring arrangement structure for aerated concrete production, which relates to the field of aerated concrete production and comprises a structure plane. The powder scale is mounted on the upper layer of the structural plane and is vertically and downwards arranged; a feeding branch pipe is arranged at the top of the spiral conveying pipe, and the feeding branch pipe is connected with a powder scale; two groups of discharging branch pipes are downwards arranged at the bottom of the spiral conveying pipe; one end of the spiral main rod extends to the end part of the spiral conveying pipe and is connected with a driving motor; the pouring stirrer is positioned on the bottom side of the powder scale and is mounted on the structural plane; and the discharging branch pipes of each group of powder scales are downwards and correspondingly communicated with the pouring stirrers, so that the technical problem that one set of powder scales are difficult to control to convey the powder to two pouring stirrers is solved.

Description

Technical Field

[0001] This utility model relates to the field of aerated concrete production technology, specifically to a double-pouring and mixing arrangement structure for aerated concrete production. Background Technology

[0002] A common batching system for aerated concrete production lines is as follows: a screw conveyor is connected to the bottom of the powder silo to transport the powder to a powder scale, and a control valve is connected to the bottom outlet of the powder scale to another screw conveyor to transport the weighed powder to the casting mixer.

[0003] For small-capacity production lines with slow cycle times, a single casting mixer is used, along with a corresponding batching system. Large-capacity lines, with their faster cycle times, sometimes require two casting mixers, each with its own independent batching system. This necessitates two sets of powder scales and screw conveyors, increasing costs. Furthermore, the increased number of equipment occupies more space, requiring a larger batching building and higher construction costs.

[0004] The existing reference CN202121768584.9 describes a double-mold casting mixer, which uses a three-way connection in the middle of the discharge pipe and a material distribution adjustment plate to enable the mixing of raw materials from both molds at one time and the casting into two molds, thereby improving production efficiency.

[0005] The prior art document uses a material distribution adjustment plate for fine-tuning to ensure that the amount of raw material entering the mold through both pipes is equal. However, it does not explain how the material distribution adjustment plate is adjusted, nor does it explain the feedback mechanism used for adjustment. Those skilled in the art can only judge the feed quality by adding a weighing structure inside the mold, and then adjust the powder adjustment plate by external structure based on the amount of material. This can easily lead to overloading of the mold with powder.

[0006] When pouring mixed powder into a casting mixer, a specific mass must be used; otherwise, the corresponding gas-generating agent, water, and gas stabilizer will need to be proportionally changed. For ease of addition, the mass of the mixed powder should be controlled starting from the powder weigher. This allows for the addition of equal amounts of other ingredients into the casting mixer to achieve mixing and subsequent processes. Therefore, a specific spiral conveyor pipe is needed to allow two sets of powder weighers to be used together.

[0007] To address these issues, we provide a dual-pouring and mixing arrangement structure for aerated concrete production. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a dual-pouring and mixing arrangement structure for aerated concrete production, which can realize the conveying of powder from one set of powder scale to two pouring and mixing machines, saving a set of powder weighing and corresponding powder inlet and outlet equipment.

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a double-pouring and mixing arrangement structure for aerated concrete production, including a structural plane;

[0010] A powder scale is arranged on the upper layer of the structural plane, and a spiral conveying pipe is installed on the lower side of the powder scale;

[0011] A spiral main rod is installed inside the spiral conveying pipe, and one end of the spiral main rod extends to the outside of the spiral conveying pipe and is connected to a drive motor;

[0012] A casting mixer is arranged in the lower layer of the structural plane, and the casting mixer is connected to the bottom side of the spiral conveying pipe;

[0013] The powder scale is connected to two sets of casting mixers through a set of spiral conveying pipes.

[0014] In a further technical solution, a feed branch pipe is provided at the top of the spiral conveyor pipe, and the feed branch pipe is connected to the powder scale; two sets of discharge branch pipes are provided downward at the bottom of the spiral conveyor pipe.

[0015] Each feed branch pipe is equipped with a powder scale, and the bottom of the powder scale is equipped with a discharge port and an automatic switching valve.

[0016] In a further technical solution, a discharge pipe is installed between the powder scale and the screw conveyor pipe. The discharge pipe is connected between the automatic switching valve of the powder scale and the feed branch pipe. This solution can solve the problem that, due to space layout requirements, the powder scale cannot be directly connected to the feed branch pipe of the screw conveyor pipe. This discharge pipe can be a hollow pipe or a screw conveyor pipe.

[0017] In a further technical solution, the main spiral rod rotates in one direction, and there is no feed branch installed between the two sets of discharge branch pipes which are horizontally distributed.

[0018] In a further technical solution, a powder silo is also arranged on the powder scale, and a feeding conveyor pipe is installed at the bottom of the powder silo and connected to the powder scale.

[0019] In a further technical solution, the helical main rod is adapted to achieve bidirectional rotation and propulsion under the drive of a drive motor.

[0020] In a further technical solution, a pneumatic transmission pipe is installed at the bottom of the spiral conveying pipe, and oblique openings are provided on both sides of the pneumatic transmission pipe; an electric air pump is installed at the bottom of the pneumatic transmission pipe, the electric air pump is fixed on the structural plane and located between the two sets of casting mixers; the air delivery end of the electric air pump is connected to the pneumatic transmission pipe.

[0021] In a further technical solution, the inclined portion is located at the bottom of the spiral conveying tube, and the two sets of inclined portions are inclined in opposite directions to both sides.

[0022] An anti-tipping net is installed inside the slanted opening, and the aperture of the anti-tipping net is smaller than the diameter of the powder particles.

[0023] In a further technical solution, the pneumatic transmission tube also includes a notch and a flat opening, with the two ends of the notch connected to the flat opening and a corresponding beveled opening, respectively.

[0024] The notch curves downwards and its bottom height is lower than that of the flat and sloping openings; a sinking pipe and a discharge valve are provided at the bottom of the notch.

[0025] In a further technical solution, the end of the pneumatic transmission pipe is provided with a curved pipe head, one end of which is installed on the upper part of the spiral conveying pipe, and the other end is connected to the inclined part.

[0026] Compared with existing technologies, it has the following advantages:

[0027] This invention employs two sets of powder scales corresponding to one set of spiral conveying pipes, providing bidirectional conveying to two sets of casting mixers, thus achieving convenient powder conveying. Compared to the existing installation method of one set of powder scales, one set of spiral conveying pipes, and one set of casting mixers, this method requires fewer pieces of equipment and fewer maintenance points during operation. The synchronized equipment layout requires less space in the batching building, resulting in lower civil engineering costs.

[0028] This invention achieves the supply of powder to two sets of casting mixers by sharing multiple sets of powder scales on a single spiral conveying pipe, thereby saving equipment costs and assembly space.

[0029] In this embodiment, a pneumatic transmission pipe is used to assist the material pushing of the spiral conveyor pipe. An electric air pump blows air through the anti-tipping net into the spiral conveyor pipe, so that the airflow can both help to accelerate the flow of powder and clean up the agglomeration or accumulation of powder in the spiral conveyor pipe, making it easier to clean. Attached Figure Description

[0030] Figure 1 This is a front view of the double-pouring and stirring arrangement structure of Embodiment 1 of this utility model;

[0031] Figure 2 This is a top view schematic diagram of the double casting and mixing arrangement structure of Embodiment 2 of this utility model;

[0032] Figure 3 This is a front view of the double-pouring and stirring arrangement structure of Embodiment 3 of this utility model;

[0033] Figure 4 This is a cross-sectional view of the spiral conveying pipe of Embodiment 3 of this utility model;

[0034] Figure 5This is a top view schematic diagram of the double casting and mixing arrangement structure of Embodiment 4 of this utility model;

[0035] Figure 6 This is a front view schematic diagram of the spiral conveying pipe of Embodiment 5 of this utility model;

[0036] Figure 7 This is a front sectional view of the spiral conveying pipe of this utility model;

[0037] Figure 8 This is a front view of the double-pouring mixer for aerated concrete production according to Embodiment 7 of this utility model;

[0038] Figure 9 This is a cross-sectional view of the pneumatic transmission pipe of this utility model;

[0039] Figure 10 for Figure 9 Enlarged view of part A;

[0040] Figure 11 This is a front view of the double-pouring mixer for aerated concrete production according to Embodiment 8 of this utility model;

[0041] Figure 12 for Figure 11 Enlarged view of part B;

[0042] Figure 13 This is a front view of the double-pouring mixer for aerated concrete production according to Embodiment 9 of this utility model;

[0043] Figure 14 for Figure 13 Enlarged view of part C;

[0044] In the picture:

[0045] 1. Structural plan;

[0046] 2. Powder scale;

[0047] 3. Screw conveyor pipe; 31. Feed branch pipe; 32. Discharge branch pipe; 33. Screw main rod;

[0048] 4. Casting mixer;

[0049] 5. Drive motor;

[0050] 6. Automatic on / off valve;

[0051] 7. Pneumatic transmission pipe; 71. Slanted opening; 72. Anti-tipping net; 73. Notched opening; 74. Flat opening; 75. Recessed pipe opening; 76. Discharge valve; 77. Bent pipe head;

[0052] 8. Electric air pump; 9. Unloading pipe; 10. Powder silo; 11. Feeding and conveying pipe. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] Example 1

[0055] like Figure 1 As shown, this utility model provides a technical solution, specifically including a double-pouring and mixing arrangement structure for aerated concrete production, including a structural plane 1; the structural plane can be a double structure of concrete pouring or steel structure to support the powder scale and the pouring mixer 4.

[0056] A powder scale 2 is arranged on the upper layer of the structural plane 1, and a spiral conveying pipe 3 is installed on the lower side of the powder scale 2;

[0057] A spiral main rod 33 is installed inside the spiral conveying pipe 3. One end of the spiral main rod 33 extends to the outside of the spiral conveying pipe 3 and is connected to a drive motor 5. A feed branch pipe 31 is provided at the top of the spiral conveying pipe 3, and the feed branch pipe 31 is connected to the powder scale 2. Two sets of discharge branch pipes 32 are provided downward at the bottom of the spiral conveying pipe 3. A set of powder scales 2 is installed on each set of feed branch pipes 31, and the bottom of the powder scales 2 is provided with a discharge port and an automatic switching valve 6 is installed. The automatic switching valve 6 and the drive motor 5 are used together to realize the introduction of powder and control the discharge from the discharge branch pipe.

[0058] A casting mixer 4 is arranged in the lower layer of structural plane 1, and the casting mixer 4 is connected to the bottom side of the spiral conveying pipe 3.

[0059] The powder weigher 2 is connected to two sets of casting mixers 4 via a set of spiral conveying pipes 3. One or more powder weighers can be installed, all connected to the same set of spiral conveying pipes 3, and the powder is transported to the two sets of casting mixers through the common spiral conveying pipe, as long as the weighing speed of the powder weighers meets the cycle time requirements. This approach offers the advantages of fewer equipment units, lower investment, and fewer maintenance points during operation. Furthermore, the required space in the batching building is small, resulting in lower civil construction costs.

[0060] Example 2

[0061] like Figure 2As shown, this is one embodiment of the present invention. Based on embodiment 1, to facilitate the actual installation of the powder scale by enterprises, multiple sets of powder scales 2 are configured. Each powder scale 2 has a discharge port at its bottom. A discharge pipe 9 is installed between each set of powder scales 2 and the screw conveyor pipe 3. The discharge pipe 9 connects to the automatic switching valve 6 and the feed branch pipe 31. The discharge pipe facilitates connection to the screw conveyor pipe and enables the conveying of powder.

[0062] Example 3

[0063] like Figure 3 and 4 As shown, this is one embodiment of the present invention. Based on embodiment 1, the unidirectional rotation of the main spiral rod pushes the powder for unloading. The main spiral rod 33 rotates in one direction, and no feed branch pipe 31 is installed between the two sets of discharge branch pipes 32 horizontally distributed. That is, as... Figure 3 In the powder scale, two sets of feed branch pipes are installed on the left side, and two sets of discharge branch pipes are installed on the right side, synchronously. Even with opposite left and right installation positions, the powder can still be discharged. Discharge is controlled by an automatic switching valve 6 installed at the discharge port of the powder scale; this automatic switching valve can be a butterfly valve. The powder scale 2 has a discharge port at its bottom and is equipped with an automatic switching valve 6; the automatic switching valve can be a ball valve, butterfly valve, plug valve, wear-resistant solenoid valve, etc. A casting mixer 4 is installed at the bottom of each set of discharge branch pipes 32. Figure 3 An automatic switching valve 6 is connected to the top of the casting mixer and the discharge branch pipe to control the flow rate from the discharge pipe. Figure 4 Material can be discharged from either the left or right discharge branch pipe, allowing it to enter different pouring and mixing machines.

[0064] Example 4

[0065] like Figure 5 As shown, another embodiment of this utility model is presented. Based on embodiment 2, a powder silo 10 is further arranged on the powder scale 2. A feeding conveying pipe 11 is installed at the bottom of the powder silo 10 and connects to the powder scale 2. Multiple powder silos are configured to supply powder to the powder scale, such as... Figure 5 As shown, two sets of powder bins are independently connected to a powder scale via a feeding conveyor pipe, which allows for the addition of different raw materials into the powder scale for separate control.

[0066] Example 5

[0067] Please see Figure 1 , 6 7. This utility model provides a technical solution whereby the drive motor 5 rotates forward or reverse to drive the spiral main rod 33 to push the powder to the left or right, combined with... Figure 6 As shown, the two sets of discharge branch pipes are located on both sides of the two sets of inlet branch pipes, through... Figure 7The spiral pusher in the middle realizes the material pushing. For example, while the powder scale feeds material into the spiral conveyor pipe 3, the drive motor pushes the material to the left to select the material to be poured into the mixer on the left side for mixing. The same applies to the right side.

[0068] Example 6

[0069] Please see Figure 3 4. To provide a technical solution for this utility model, the drive motor 5 rotates in one direction, driving the spiral main rod 33 to push to the right, combined with Figure 4 As shown, the two sets of discharge branch pipes are located to the right of the two sets of inlet branch pipes, through... Figure 4 The material is pushed by a spiral pusher. For example, while the powder scale feeds material into the spiral conveyor pipe 3, the automatic switching valve of the left discharge branch pipe 32 is opened, and the drive motor rotates, pushing the powder entering the spiral conveyor pipe 3 to the right. Because the automatic switching valve of the left discharge branch pipe 32 is open, the automatic switching valve of the right discharge branch pipe 32 is closed. All the powder entering the spiral conveyor pipe 3 enters the left casting mixer for mixing. The same applies to the right side.

[0070] Example 7

[0071] like Figure 8-10 As shown, another embodiment of this utility model is provided. Based on embodiment 1, a pneumatic transmission pipe 7 is installed at the bottom of the spiral conveying pipe 3. The pneumatic transmission pipe 7 has inclined openings 71 on both sides and is connected to the spiral conveying pipe. An electric air pump 8 is installed at the bottom of the pneumatic transmission pipe 7. The electric air pump 8 is fixed on the structural plane 1 and located between the two sets of casting mixers 4. The air supply end of the electric air pump 8 is connected to the pneumatic transmission pipe 7.

[0072] The inclined section 71 is located at the bottom of the spiral conveying pipe 3, and the two sets of inclined sections 71 are inclined in opposite directions to both sides; an anti-tipping net 72 is installed inside the inclined section 71, such as Figure 10 As shown. The aperture of the anti-backflow mesh 72 is smaller than the diameter of the powder particles. In this embodiment, a pneumatic transmission pipe is used to assist the material pushing of the screw conveyor. The powder weigher contains materials including fly ash, cement, lime, and gypsum, which have many components and different particle diameters, making them prone to clogging. An electric air pump blows air through the anti-backflow mesh into the screw conveyor, allowing the airflow to pass through the screw conveyor and be discharged through the discharge branch pipe. The anti-backflow mesh can be a filter with a small mesh size or a permeable membrane, allowing air molecules to pass through but not solid molecules, thus preventing powder from flowing back into the pneumatic transmission pipe.

[0073] Example 8

[0074] like Figure 11 and 12As shown, another embodiment of this utility model is presented. Based on embodiment 2, the pneumatic transmission pipe 7 further includes a notch 73 and a flat opening 74. The two ends of the notch 73 are respectively connected to the flat opening 74 and the corresponding oblique opening 71. The notch 73 is bent downwards, and its bottom height is lower than that of the flat opening 74 and the oblique opening 71. A recessed pipe opening 75 and a discharge valve 76 are provided at the bottom of the notch 73. This design ensures that even when the guide net uses a filter screen, some particles will still be squeezed through. When the airflow blows through the pneumatic transmission pipe, the particles collide with the spiral conveyor pipe, causing noise in the pipe that cannot be discharged unless the entire pneumatic transmission pipe is removed. The recessed pipe opening and the corresponding discharge valve allow for timely and effective discharge of waste materials.

[0075] Example 9

[0076] like Figure 13 and 14 As shown, another embodiment of this utility model is provided. Based on embodiment 1, a bent tube head 77 is provided at the end of the pneumatic transmission pipe 7. One end of the bent tube head 77 is installed on the upper part of the spiral conveying pipe 3, and the other end is connected to the inclined part 71. This embodiment adopts top installation for auxiliary material discharge, which has a good technical effect of preventing powder from entering the pneumatic transmission pipe. The top installation position can ensure that powder will not fall into the pneumatic transmission pipe, and air can be blown from different directions. When the machine is stopped, the airflow can be used to easily clean the spiral main rod and the inner wall of the spiral conveying pipe.

[0077] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A double-pouring and mixing arrangement structure for aerated concrete production, comprising a structural plane (1); Its features are, A powder scale (2) is arranged on the upper layer of the structural plane (1), and a spiral conveying pipe (3) is installed on the lower side of the powder scale (2). A spiral main rod (33) is installed inside the spiral conveying pipe (3). One end of the spiral main rod (33) extends to the outside of the spiral conveying pipe (3) and is connected to a drive motor (5). A casting mixer (4) is arranged in the lower layer of the structural plane (1), and the casting mixer (4) is connected to the bottom side of the spiral conveying pipe (3); The powder scale (2) is connected to two sets of casting mixers (4) through a set of spiral conveying pipes (3); The bottom of the spiral conveying pipe (3) is equipped with a pneumatic transmission pipe (7), and the pneumatic transmission pipe (7) has inclined openings (71) on both sides and is connected to the spiral conveying pipe (3); the bottom of the pneumatic transmission pipe (7) is equipped with an electric air pump (8), which is fixed on the structural plane (1) and located between the two sets of casting mixers (4); the air supply end of the electric air pump (8) is connected to the pneumatic transmission pipe (7).

2. The double-pouring and mixing arrangement structure for aerated concrete production according to claim 1, characterized in that, The top of the spiral conveyor pipe (3) is provided with a feed branch pipe (31), which is connected to the powder scale (2); the bottom of the spiral conveyor pipe (3) is provided with two sets of discharge branch pipes (32). Each feed branch pipe (31) is equipped with a powder scale (2), and the bottom of the powder scale (2) is provided with a discharge port and an automatic switch valve (6).

3. The double-pouring and mixing arrangement structure for aerated concrete production according to claim 2, characterized in that, The powder scale (2) has a discharge port at the bottom. A discharge pipe (9) is installed between the discharge port and the screw conveyor pipe (3). The discharge pipe (9) is connected between the automatic switch valve (6) and the feed branch pipe (31).

4. The double-pouring and mixing arrangement structure for aerated concrete production according to claim 2, characterized in that, A powder silo (10) is also arranged on the powder scale (2), and a feeding conveyor pipe (11) is installed at the bottom of the powder silo (10) and connected to the powder scale (2).

5. The double-pouring and mixing arrangement structure for aerated concrete production according to claim 2, characterized in that, When the main spiral rod (33) is pushed in both directions, it is suitable for driving the motor (5) to rotate forward or reverse.

6. The double-pouring and mixing arrangement structure for aerated concrete production according to claim 2, characterized in that, The main spiral rod (33) rotates in one direction, and no feed branch pipe (31) is installed on the spiral conveying pipe (3) between the two sets of discharge branch pipes (32) which are horizontally distributed.

7. The double-pouring and mixing arrangement structure for aerated concrete production according to claim 6, characterized in that, The inclined section (71) is located at the bottom of the spiral conveying pipe (3), and the two sets of inclined sections (71) are inclined in opposite directions to both sides; An anti-tipping net (72) is installed inside the slanted opening (71), and the aperture of the anti-tipping net (72) is smaller than the diameter of the powder particles.

8. The double-pouring and mixing arrangement structure for aerated concrete production according to claim 7, characterized in that, The pneumatic transmission pipe (7) also includes a notch (73) and a flat opening (74), with the two ends of the notch (73) connected to the flat opening (74) and the corresponding oblique opening (71), respectively. The notch (73) bends downward and the bottom height is lower than that of the flat opening (74) and the slanted opening (71); the bottom of the notch (73) is provided with a sinking pipe opening (75) and a material discharge valve (76).

9. A double-pouring and mixing arrangement structure for aerated concrete production according to claim 8, characterized in that, The pneumatic transmission pipe (7) is provided with a bent pipe head (77) at its end. One end of the bent pipe head (77) is installed on the upper part of the spiral conveying pipe (3), and the other end is connected to the inclined part (71).

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