Aluminum powder paste grinder for aerated concrete

Abstract

The utility model provides an aluminum powder paste grinding machine for aerated concrete. It relates to the technical field of aerated concrete production equipment. The aluminum powder paste grinding machine for aerated concrete comprises a grinding shell, two transmission shafts are rotatably installed in the grinding shell, the same direction ends of the two transmission shafts are extended to the outside of the grinding shell, grinding rollers are fixedly sleeved on the two transmission shafts, the two grinding rollers are matched, a discharge pipe is fixedly installed at the bottom of the grinding shell, a breaking shell is fixedly installed at the top of the grinding shell, a rotating shaft is rotatably installed on the top inner wall of the breaking shell, a plurality of breaking pieces are fixedly installed on the rotating shaft, the plurality of breaking pieces are distributed in a complicated manner, and a connecting pipe is fixedly installed at the bottom of the breaking shell. The utility model can improve the grinding degree and recycle a part of aluminum powder in the dust.

Description

Technical Field

[0001] This utility model relates to the technical field of aerated concrete production equipment, specifically to an aluminum powder paste grinding machine for aerated concrete. Background Technology

[0002] In the production of aerated concrete, aluminum powder paste serves as a gas-generating agent, and its particle size and uniformity directly affect the pore structure and strength of the aerated concrete. If the aluminum powder paste is not ground sufficiently, has an excessively large or uneven particle size, it will lead to unstable gas generation rate and disordered pore distribution, thereby affecting the quality of the aerated concrete.

[0003] Existing aluminum powder paste grinding equipment mostly adopts a single grinding roller or grinding disc structure, which has the following problems: First, the aluminum powder paste is prone to clumping during the grinding process, resulting in insufficient grinding; second, during the grinding process, aluminum powder dust cannot be filtered and recovered. Because the high-speed moving grinding roller will cause aluminum particles to break and peel off, forming dust of different particle sizes that are suspended in the air and form dust. These dust particles containing aluminum powder usually have a certain recycling value. Therefore, these aluminum materials are wasted and will also cause harm to the surrounding environment.

[0004] Therefore, it is necessary to provide a new aluminum powder paste grinding machine for aerated concrete to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an aluminum powder paste grinding machine for aerated concrete that can improve the degree of grinding and recover a portion of the aluminum powder in the dust.

[0006] To solve the above-mentioned technical problems, the present invention provides an aluminum powder paste grinding machine for aerated concrete, comprising: a grinding shell, two drive shafts rotatably mounted inside the grinding shell, the same-direction ends of the two drive shafts extending outside the grinding shell, and grinding rollers fixedly sleeved on each of the two drive shafts, the two grinding rollers being matched; a discharge pipe fixedly mounted at the bottom of the grinding shell; a dispersing shell fixedly mounted at the top of the grinding shell; a rotating shaft rotatably mounted on the inner wall of the top of the dispersing shell; multiple dispersing discs fixedly mounted on the rotating shaft, the multiple dispersing discs being in a staggered arrangement; a receiving pipe fixedly mounted at the bottom of the dispersing shell, the bottom end of the receiving pipe extending into the grinding shell; and the dispersing shell... A material pouring shell is fixedly installed on the top of the grinding shell, and a frame is fixedly installed on the bottom of the grinding shell. A purification box is fixedly installed on one side of the frame. One end of a first air inlet pipe is fixedly installed on the side of the purification box near the discharge pipe. A first flared port is fixedly installed on the other end of the first air inlet pipe, and the first flared port is located on one side of the discharge pipe. One end of a second air inlet pipe is fixedly installed on the top of the purification box. The other end of the second air inlet pipe is sealed. Three second flared ports are fixedly installed on the second air inlet pipe, and all three second flared ports are located on one side of the material pouring shell. A booster fan is fixedly installed on the side of the purification box away from the frame, and the air inlet of the booster fan is fixedly connected to the purification box.

[0007] Preferably, the purification box is provided with a plug-in frame, the top of the purification box has a plug-in port, the top of the plug-in frame passes through the plug-in port and contacts the inner wall of the plug-in port, a cover is fixedly installed on the top of the plug-in frame, the bottom of the cover contacts the top of the purification box, and the cover is fixedly connected to the top of the purification box by bolts, and a filter bag is fixedly installed inside the plug-in frame.

[0008] Preferably, a right-angled trapezoidal guide seat is fixedly installed on the inner wall of the purification box on the side away from the frame. The right-angled trapezoidal guide seat is fixedly connected to the bottom inner wall of the purification box. The bottom of the plug-in frame is in contact with the right-angled trapezoidal guide seat, and the bottom of the plug-in frame on the side closer to the frame is in contact with the top edge of the hypotenuse of the right-angled trapezoidal guide seat. A ash discharge port is opened at the bottom of the purification box. A ash discharge square tube is fixedly installed at the bottom of the purification box. The ash discharge square tube is located directly below the ash discharge port, and the inner diameter of the ash discharge square tube is larger than the inner diameter of the ash discharge port. A collection box is fixedly installed at the bottom of the ash discharge square tube by bolts.

[0009] Preferably, gears are fixedly sleeved on both of the transmission shafts, the two gears mesh with each other, and both gears are located outside the grinding housing. A drive motor is fixedly installed on the outer wall of the grinding housing away from the gears, and the output shaft of the drive motor is fixedly connected to one end of one of the transmission shafts.

[0010] Preferably, guide plates are fixedly installed on the inner walls of both sides of the grinding shell, and arc grooves are opened on the side of the two guide plates that are close to each other. The two grinding rollers are respectively located in the two arc grooves, and the inner diameter of the arc groove is slightly larger than the maximum outer diameter of the grinding roller.

[0011] Preferably, the material pouring shell has an inverted U-shaped design, and a servo motor is fixedly installed on the top of the dispersing shell. The output shaft of the servo motor is fixedly connected to the top of the rotating shaft, and the servo motor is located inside the material pouring shell.

[0012] Preferably, both the grinding shell and the disintegrating shell have reinforcing ribs fixedly installed on the outer wall of the side closest to the second air inlet pipe, and both reinforcing ribs are fixedly connected to the second air inlet pipe.

[0013] Compared with related technologies, the aluminum powder paste grinding machine for aerated concrete provided by this utility model has the following beneficial effects: This invention utilizes multiple dispersing discs within the outer casing to disperse aluminum powder paste raw materials during pouring, preventing clumping and ensuring thorough grinding. Furthermore, during the grinding process, a booster fan draws most of the aluminum powder-laden dust into the purification chamber for filtration through filter bags, effectively trapping the aluminum powder and improving both the aluminum powder recycling rate and the surrounding environmental quality. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of the aluminum powder paste grinding machine for aerated concrete provided by this utility model; Figure 2 This is a schematic diagram of the back side structure of this utility model; Figure 3 This is a cross-sectional view of the grinding shell in this utility model; Figure 4 This is a cross-sectional view of the disassembled outer shell in this utility model; Figure 5 This is a schematic diagram showing the distribution of the first and second flared openings in this utility model. Figure 6 This is a schematic diagram showing the disassembled state of the purification box, pluggable frame, and collection box in this utility model; Figure 7This is a cross-sectional view of the purification box in this utility model.

[0015] The following are the labels in the diagram: 1. Grinding shell; 2. Drive shaft; 3. Grinding roller; 4. Discharge pipe; 5. Frame; 6. Disintegration shell; 7. Connecting pipe; 8. Rotating shaft; 9. Disintegration blade; 10. Discharge shell; 11. Purification box; 12. First air inlet pipe; 13. First bell mouth; 14. Second air inlet pipe; 15. Second bell mouth; 16. Booster fan; 17. Insertable frame; 18. Filter bag; 19. Ash discharge port; 20. Ash discharge square pipe; 21. Collection box. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figures 1-7The aluminum powder paste grinding machine for aerated concrete includes: a grinding shell 1, within which two drive shafts 2 are rotatably mounted. The ends of both drive shafts 2 extend outwards from the grinding shell 1, and gears are fixedly fitted onto the outer portions of both drive shafts 2. The two gears mesh with each other. A drive motor is fixedly mounted on the outer wall of the grinding shell 1 on the side away from the gears, and its output shaft is fixedly connected to one end of one of the drive shafts 2. Grinding rollers 3 are fixedly fitted onto both drive shafts 2, and the two grinding rollers 3 are used in conjunction with each other. A discharge pipe 4 is fixedly installed at the bottom of the grinding shell 1 to discharge the ground aluminum powder paste. A dispersing shell 6 is fixedly installed at the top of the grinding shell 1. A rotating shaft 8 is rotatably mounted on the inner wall of the part, and a servo motor is fixedly mounted on the top of the dispersing shell 6. The output shaft of the servo motor is fixedly connected to the top of the rotating shaft 8. Multiple dispersing discs 9 are fixedly mounted on the rotating shaft 8. The multiple dispersing discs 9 are staggered to improve the dispersing effect and the comprehensiveness of dispersing. In order to pour the aluminum powder paste into the dispersing shell 6, a pouring shell 10 is fixedly mounted on the top of the dispersing shell 6. The pouring shell 10 has an inverted U-shaped design, and the servo motor is located in the internal space of the pouring shell 10. A connecting pipe 7 is fixedly mounted on the bottom of the dispersing shell 6. The bottom end of the connecting pipe 7 extends into the grinding shell 1, and a frame 5 is fixedly mounted on the bottom of the grinding shell 1. A purification box 11 is fixedly installed on one side of the material discharge pipe 4. One end of a first air inlet pipe 12 is fixedly installed on the side of the purification box 11 closest to the discharge pipe 4. A first flared nozzle 13 is fixedly installed on the other end of the first air inlet pipe 12, located on one side of the discharge pipe 4. One end of a second air inlet pipe 14 is fixedly installed on the top of the purification box 11. The other end of the second air inlet pipe 14 is sealed. Three second flared nozzles 15 are fixedly installed on the second air inlet pipe 14, all located on one side of the material discharge housing 10. A booster fan 16 is fixedly installed on the side of the purification box 11 furthest from the frame 5. The air inlet of the booster fan 16 is fixedly connected to the purification box 11. By operating the booster fan 16, air can be discharged during material discharge. The top of the housing 10 and the bottom of the discharge pipe 4 form a negative pressure suction effect, which can absorb the dust containing aluminum powder generated during grinding. In order to filter the sucked dust and intercept and recycle the aluminum powder, a plug-in frame 17 is provided in the purification box 11. The top of the purification box 11 has a plug-in port. The top of the plug-in frame 17 passes through the plug-in port and contacts the inner wall of the plug-in port. A cover is fixedly installed on the top of the plug-in frame 17. The bottom of the cover contacts the top of the purification box 11 and is fixedly connected to the top of the purification box 11 by bolts. A filter bag 18 is fixedly installed inside the plug-in frame 17. The filter bag 18 can form a filtration effect, thereby intercepting and recycling aluminum powder.

[0018] In the above method, to facilitate the recovery of intercepted aluminum powder, a right-angled trapezoidal guide seat with a single hypotenuse is fixedly installed on the inner wall of the purification box 11 on the side away from the frame 5. This right-angled trapezoidal guide seat is fixedly connected to the bottom inner wall of the purification box 11. The bottom of the plug-in frame 17 contacts the right-angled trapezoidal guide seat, and the bottom of the plug-in frame 17 on the side closer to the frame 5 is flush with the top edge of the hypotenuse of the right-angled trapezoidal guide seat. This ensures that the dust on the filter bag 18 will smoothly enter the ash discharge port 19 through the hypotenuse of the right-angled trapezoidal guide seat. The bottom of the purification box 11 has a ash discharge port 19. A ash discharge square tube 20 is fixedly installed at the bottom of the purification box 11. The ash discharge square tube 20 is located directly below the ash discharge port 19, and the inner diameter of the ash discharge square tube 20 is larger than the inner diameter of the ash discharge port 19. A collection box 21 is fixedly installed at the bottom of the ash discharge square tube 20 by bolts. Part of the intercepted aluminum powder will fall directly into the collection box 21, and a small part will adhere to the filter bag 18. Later, the aluminum powder attached to the filter bag 18 can be shaken off by tapping by pulling out the plug-in frame 17 from the purification box 11.

[0019] In this method, in order to ensure that all the aluminum powder paste material entering the grinding shell 1 can be ground, guide inclined plates are fixedly installed on both sides of the inner wall of the grinding shell 1. Arc grooves are opened on the side of the two guide inclined plates that are close to each other. The two grinding rollers 3 are located in the two arc grooves respectively, and the inner diameter of the arc groove is slightly larger than the maximum outer diameter of the grinding roller 3.

[0020] In this method, in order to stabilize the longer second air inlet pipe 14, reinforcing ribs are fixedly installed on the outer walls of the grinding shell 1 and the disintegrating shell 6 on the side near the second air inlet pipe 14, and both reinforcing ribs are fixedly connected to the second air inlet pipe 14.

[0021] The working principle of the aluminum powder paste grinding machine for aerated concrete provided by this utility model is as follows: Before grinding the aluminum powder paste, the servo motor, drive motor and booster fan 16 are started. At this time, the servo motor rotates the rotating shaft 8 and the multiple dispersing discs 9 also rotate. The start of the booster fan 16 creates a negative pressure near the ports of the first horn 13 and the three second horn 15, so that the surrounding air can be drawn in. At the same time, the operation of the drive motor can make the two grinding rollers 3 rotate in opposite directions through the meshing of two gears. Next, when grinding the aluminum powder paste, a receiving box is placed below the discharge pipe 4. The aluminum powder paste raw material is then poured into the discharge shell 10 and passes through the dispersing shell 6. During the passage, the rotating dispersing blades 9 can break up any clumps of raw material. The broken raw material then enters the grinding shell 1 and enters the space between the two grinding rollers 3 to perform the grinding work. The ground aluminum powder paste will then fall into the receiving box. During the grinding process, dust containing aluminum powder will be generated at the top of the discharge housing 10 and the bottom of the discharge pipe 4. Most of this dust enters the purification chamber 11 through the first air inlet pipe 12 and the second air inlet pipe 14, and is intercepted and retained in the purification chamber 11 by the filter bag 18. Some aluminum powder will fall directly into the collection box 21 through the ash discharge port 19, and a small amount of aluminum powder will adhere to the filter bag 18. After the grinding is completed, the collection box 21 can be removed from the bottom of the ash discharge square pipe 20, the aluminum powder can be poured out, and the bolt between the top cover of the plug-in frame 17 and the purification chamber 11 can be unscrewed. The plug-in frame 17 can then be pulled out upwards, thereby pulling the filter bag 18 out of the purification chamber 11. Then, the aluminum powder attached to it can be knocked off. After that, the collection box 21 is reinstalled at the bottom of the ash discharge square pipe 20, and the plug-in frame 17 is reinserted into the purification chamber 11. The cover is then tightened between the filter bag and the purification chamber 11.

[0022] Compared with related technologies, the aluminum powder paste grinding machine for aerated concrete provided by this utility model has the following beneficial effects: This utility model provides an aluminum powder paste grinding machine for aerated concrete. By setting multiple dispersing discs 9 inside the dispersing shell 6, the aluminum powder paste raw material can be dispersed by the rotating dispersing discs 9 when it is poured in, avoiding clumping and ensuring thorough grinding. In addition, during the grinding process, the operation of the booster fan 16 can draw most of the dust containing aluminum powder into the purification box 11 and filter it through the filter bag 18, intercepting the aluminum powder and forming an effective collection, which not only improves the aluminum powder recycling rate, but also improves the quality of the surrounding environment.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A grinding mill for aluminum powder paste used in aerated concrete, comprising a grinding shell, characterized in that, Two drive shafts are rotatably mounted inside the grinding shell, with their co-directional ends extending outside the grinding shell. Grinding rollers are fixedly fitted onto each drive shaft, and the two grinding rollers are matched. A discharge pipe is fixedly mounted at the bottom of the grinding shell, and a dispersing shell is fixedly mounted at the top. A rotating shaft is rotatably mounted on the inner wall of the top of the dispersing shell, and multiple dispersing discs are fixedly mounted on the rotating shaft in a staggered arrangement. A receiving pipe is fixedly mounted at the bottom of the dispersing shell, with its bottom end extending into the grinding shell. A pouring shell is fixedly mounted at the top of the dispersing shell. A frame is fixedly installed at the bottom of the device. A purification box is fixedly installed on one side of the frame. One end of a first air inlet pipe is fixedly installed on the side of the purification box near the discharge pipe. A first flared port is fixedly installed on the other end of the first air inlet pipe. The first flared port is located on one side of the discharge pipe. One end of a second air inlet pipe is fixedly installed on the top of the purification box. The other end of the second air inlet pipe is sealed. Three second flared ports are fixedly installed on the second air inlet pipe. All three second flared ports are located on one side of the discharge housing. A booster fan is fixedly installed on the side of the purification box away from the frame. The air inlet port of the booster fan is fixedly connected to the purification box.

2. The aluminum powder paste grinding mill for aerated concrete according to claim 1, characterized in that, The purification box is equipped with a plug-in frame, and the top of the purification box has a plug-in port. The top of the plug-in frame passes through the plug-in port and contacts the inner wall of the plug-in port. A cover is fixedly installed on the top of the plug-in frame. The bottom of the cover contacts the top of the purification box, and the cover is fixedly connected to the top of the purification box by bolts. A filter bag is fixedly installed inside the plug-in frame.

3. The aluminum powder paste grinding mill for aerated concrete according to claim 2, characterized in that, A right-angled trapezoidal guide seat is fixedly installed on the inner wall of the purification box away from the frame. The right-angled trapezoidal guide seat is fixedly connected to the bottom inner wall of the purification box. The bottom of the plug-in frame is in contact with the right-angled trapezoidal guide seat, and the bottom of the plug-in frame near the frame is in contact with the top edge of the hypotenuse of the right-angled trapezoidal guide seat. A ash discharge port is opened at the bottom of the purification box. A ash discharge square tube is fixedly installed at the bottom of the purification box. The ash discharge square tube is located directly below the ash discharge port, and the inner diameter of the ash discharge square tube is larger than the inner diameter of the ash discharge port. A collection box is fixedly installed at the bottom of the ash discharge square tube by bolts.

4. The aluminum powder paste grinding mill for aerated concrete according to claim 1, characterized in that, Gears are fixedly fitted on both of the transmission shafts, the two gears mesh with each other, and both gears are located outside the grinding housing. A drive motor is fixedly installed on the outer wall of the grinding housing away from the gears, and the output shaft of the drive motor is fixedly connected to one end of one of the transmission shafts.

5. The aluminum powder paste grinding mill for aerated concrete according to claim 1, characterized in that, Guide plates are fixedly installed on both inner walls of the grinding shell. An arc groove is opened on the side of the two guide plates that are close to each other. The two grinding rollers are located in the two arc grooves respectively, and the inner diameter of the arc groove is slightly larger than the maximum outer diameter of the grinding roller.

6. The aluminum powder paste grinding mill for aerated concrete according to claim 1, characterized in that, The material pouring shell has an inverted U-shaped design. A servo motor is fixedly installed on the top of the dispersing shell. The output shaft of the servo motor is fixedly connected to the top of the rotating shaft. The servo motor is located inside the material pouring shell.

7. The aluminum powder paste grinding mill for aerated concrete according to claim 1, characterized in that, Both the grinding shell and the disintegration shell have reinforcing ribs fixedly installed on the outer wall of the side near the second air inlet pipe, and both reinforcing ribs are fixedly connected to the second air inlet pipe.

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