Dust-free filling machine for magnesium hydroxide dry powder

Abstract

The utility model discloses a magnesium hydroxide dry powder dust-free filling machine which comprises a machine frame, a filling machine head is fixedly installed in a concave cavity in the middle of the machine frame, and a conveying belt is horizontally arranged below the filling machine head. According to the utility model, the blocking frame is mounted at the lower part of the canning machine head in a covering manner, the dust collection pipe and the dust collection cover which are communicated with the dust collection box are arranged on the blocking frame, and the air cylinder is mounted between the canning machine head and the blocking frame, so that the air cylinder is started to do reciprocating motion, and the air cylinder is promoted to push the blocking frame to do reciprocating lifting under the action of the fixing block; the position of the blocking frame can be switched in a reciprocating mode on the surface of the upper portion of the filling machine head and the position of a filling nozzle at the bottom of the filling machine head, packaging bags are arranged under the filling machine head after being sequentially opened, the liftable blocking frame is adopted, a semi-closed dust absorption structure can be formed in the magnesium hydroxide filling stage of the filling machine head, and therefore the filling machine head can be used for filling magnesium hydroxide. And the phenomenon of dust leakage in the filling stage of the magnesium hydroxide dry powder is reduced to the maximum extent, so that the requirement of dust-free filling is met.

Description

Technical Field

[0001] The utility model relates to the technical field of dry powder filling equipment, in particular to a dust-free filling machine for magnesium hydroxide dry powder. Background Art

[0002] Magnesium hydroxide, chemical formula Mg(OH)2, formula weight 58.32. White amorphous powder. Also known as caustic magnesia, lightly burned magnesia, etc., the suspension of magnesium hydroxide in water is called magnesium hydroxide emulsion, abbreviated as magnesium milk, and its English name is Magnesiumhydroxide. Magnesium hydroxide is a colorless hexagonal crystal or white powder, which is difficult to dissolve in water and alcohol, soluble in dilute acid and ammonium salt solution, and the aqueous solution is weakly alkaline. The solubility in water is very small, but the part soluble in water is completely ionized. The concentration of saturated aqueous solution is 1.9 mg / L (18°C). Heated to 350°C, it loses water to form magnesium oxide. Magnesium hydroxide is a natural mineral brucite. It can be used to make sugar and magnesium oxide, etc. Because magnesium hydroxide is relatively abundant in nature and its chemical properties are similar to aluminum, users began to use magnesium hydroxide to replace aluminum chloride for fragrance products. It is used as an analytical reagent and also used in the pharmaceutical industry. Among them, magnesium hydroxide powder needs to use a dry powder filling machine in the packaging stage.

[0003] After searching, announcement number CN206914689U discloses an anti-pollution dry powder filling machine. In this scheme, a dust removal device is provided to absorb the dust generated when the filling machine is working into a dust collecting box. The electrostatic rods in the dust collecting box adsorb the dust to prevent dust pollution and avoid harm to the human body.

[0004] However, the dust removal device of this type of dry powder filling machine is not well matched with the filling head. During the actual magnesium hydroxide dry powder packaging stage, the magnesium hydroxide powder that escapes from the filling head quickly diffuses into the working environment, resulting in poor dust removal effect.

[0005] To this end, a magnesium hydroxide dry powder dust-free filling machine is proposed, which has the advantages of dust-free filling and material recycling and reuse, thereby solving the problems in the above-mentioned background technology. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a dust-free filling machine for magnesium hydroxide dry powder.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a magnesium hydroxide dry powder dust-free filling machine, comprising a frame, a filling head is fixedly installed in a concave cavity in the middle part of the frame, and a conveyor belt is horizontally arranged below the filling head, the outer cover of the filling nozzle at the bottom of the filling head is connected to a baffle frame, and dust suction pipes are arranged on the left and right sides of the baffle frame, and the dust suction pipe extends to one end of the inner side of the baffle frame and is connected with a dust suction hood, a accommodating groove is opened on the upper surface of the frame, and a dust collecting box is fixedly installed in the accommodating groove, a dust suction fan is fixedly installed on the left side of the top surface of the dust collecting box, and the air suction port of the dust suction fan is connected with an exhaust hood through a pipeline, a filter is arranged between the exhaust hood and the dust collecting box, a telescopic hose is sleeved on the surface of the dust suction pipe, and the top of the dust suction pipe is connected with the dust collecting box, a cylinder is fixedly installed on the back of the filling head, and a fixing seat welded to the outer surface of the baffle frame is arranged at the bottom of the cylinder.

[0008] As a further description of the above technical solution: the lower surface of the dust collecting box is connected to a discharge nozzle, and a baffle is fixedly installed on the top surface of the discharge nozzle, an elastic inclined plate is welded to the inner bottom of the dust collecting box corresponding to the discharge nozzle, and a rubber frame is fixed between the elastic inclined plate and the inner wall of the dust collecting box, and a vibration motor is fixedly installed on the bottom surface of the elastic inclined plate.

[0009] As a further description of the above technical solution: guide rods are welded on both sides of the top surface of the baffle frame, and guide sleeves are welded on the left and right sides of the filling head corresponding to the guide rods, and the guide sleeves are sleeved with the guide rods.

[0010] As a further description of the above technical solution: a material storage bin is installed inside the frame, and the material storage bin is connected to the filling nozzle of the filling head through a feeding pipe.

[0011] As a further description of the above technical solution: the baffle frame is composed of a U-shaped shell and a U-shaped plate welded on the inner top surface thereof, and a mounting hole is provided on the lower surface of the U-shaped shell of the baffle frame corresponding to the dust suction pipe.

[0012] As a further description of the above technical solution: the dust collecting box is internally installed with a plurality of electrostatic rods, and the plurality of electrostatic rods are fixedly installed on the inner top surface of the dust collecting box.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, a baffle frame is installed at the lower cover of the filling machine head, and a dust suction pipe and a dust suction hood connected to the dust collecting box are arranged on the baffle frame, and a cylinder is installed between the filling machine head and the baffle frame. By starting the cylinder to make a reciprocating motion, the cylinder is prompted to push the baffle frame to lift and lower reciprocatingly under the action of a fixed block, so that the position of the baffle frame can be reciprocatedly switched between the upper surface of the filling machine head and the filling nozzle at the bottom of the filling machine head. As the packaging bags are opened in turn, they are placed directly under the filling machine head. A liftable baffle frame is adopted, which can form a semi-enclosed dust absorption structure in the stage of filling magnesium hydroxide in the filling machine head, thereby minimizing the dust leakage in the stage of filling magnesium hydroxide dry powder, so as to meet the demand for dust-free filling.

[0015] In the utility model, a discharge nozzle, a baffle, an elastic inclined plate, a vibration motor and a rubber frame are arranged on the dust collecting box. When the absorbed magnesium hydroxide powder needs to be discharged, a packaging bag is sleeved on the outer periphery of the discharge nozzle, and the baffle inserted on the surface of the discharge nozzle is pulled out in advance, and then the vibration motor installed on the bottom surface of the elastic inclined plate is started. Since a rubber frame is arranged between the side surface of the elastic inclined plate and the inner wall of the dust collecting box, the vibration motor transfers the vibration to the elastic inclined plate, so that the magnesium hydroxide powder on the top surface of the elastic inclined plate is continuously shaken until the magnesium hydroxide powder is fully discharged from the discharge nozzle, so that the magnesium hydroxide powder can be reused. Compared with the prior art, there is no need to manually open the dust collecting box to discharge and clean the material, and the adequacy of the discharge can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a magnesium hydroxide dry powder dust-free filling machine of the utility model;

[0017] Figure 2 This is a back view of a filling machine head and a baffle frame of a magnesium hydroxide dry powder dust-free filling machine of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the dust collecting box structure of a magnesium hydroxide dry powder dust-free filling machine.

[0019] Legend:

[0020] 1. Frame; 2. Filling machine head; 3. Conveyor belt; 4. Receiving tank; 5. Dust collecting box; 6. Dust suction fan; 7. Exhaust hood; 8. Baffle frame; 9. Dust suction hood; 10. Dust suction pipe; 11. Cylinder; 12. Telescopic hose; 13. Fixed seat; 14. Guide rod; 15. Guide sleeve; 16. Filter screen; 17. Discharge nozzle; 18. Baffle; 19. Elastic inclined plate; 20. Vibration motor; 21. Rubber frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] According to an embodiment of the utility model, a dust-free filling machine for magnesium hydroxide dry powder is provided.

[0023] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3 As shown, a magnesium hydroxide dry powder dust-free filling machine according to an embodiment of the utility model comprises a frame 1, a filling head 2 is fixedly installed in a concave cavity in the middle of the frame 1, and a conveyor belt 3 is horizontally arranged below the filling head 2, a peripheral cover of the filling nozzle at the bottom of the filling head 2 is connected to a baffle frame 8, and dust suction pipes 10 are arranged on both sides of the baffle frame 8, and the dust suction pipe 10 extends to one end of the inner side of the baffle frame 8 and is connected to a dust suction hood 9, a receiving groove 4 is opened on the upper surface of the frame 1, and a dust collecting box 5 is fixedly installed in the receiving groove 4, a dust suction fan 6 is fixedly installed on the left side of the top surface of the dust collecting box 5, and the suction port of the dust suction fan 6 is connected to an exhaust hood 7 through a pipeline, a filter screen 16 is arranged between the exhaust hood 7 and the dust collecting box 5, and the surface of the dust suction pipe 10 A telescopic hose 12 is installed on the surface sleeve, and the top of the dust suction pipe 10 is connected to the dust collecting box 5. A cylinder 11 is fixedly installed on the back of the filling machine head 2, and a fixing seat 13 welded to the outer surface of the baffle frame 8 is arranged at the bottom of the cylinder 11. The frame 1 of the utility model is a dry powder filling machine, and its principle is an existing known technology, and there are mature products. Therefore, no further explanation is given to its principle, and the parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The cylinder 11 and the dust suction fan 6 can be equipped with a controller, and the conveying frequency of the magnesium hydroxide packaging bag is used as a basis, so that the cylinder 11 can be extended and retracted at a corresponding frequency during the gap between the packaging bag support and conveying, so as to meet the purpose of dust collection in the filling stage;

[0024] In one embodiment, the lower surface of the dust box 5 is connected to a discharge nozzle 17, and a baffle 18 is fixedly installed on the top surface of the discharge nozzle 17, an elastic inclined plate 19 is welded to the inner bottom of the dust box 5 corresponding to the discharge nozzle 17, and a rubber frame 21 is fixed between the elastic inclined plate 19 and the inner wall of the dust box 5, and a vibration motor 20 is fixedly installed on the bottom surface of the elastic inclined plate 19. By putting a packaging bag on the outer periphery of the discharge nozzle 17, and pulling out the baffle 18 inserted on the surface of the discharge nozzle 17 in advance, and then starting the vibration motor 20 installed on the bottom surface of the elastic inclined plate 19, since a rubber frame 21 is provided between the side surface of the elastic inclined plate 19 and the inner wall of the dust box 5, the vibration motor 20 will transfer the vibration to the elastic inclined plate 19, so that the magnesium hydroxide powder on the top surface of the elastic inclined plate 19 is continuously shaken until the magnesium hydroxide powder is fully discharged from the discharge nozzle 17, so that the magnesium hydroxide powder can be reused.

[0025] In one embodiment, guide rods 14 are welded on both sides of the top surface of the baffle frame 8, and guide sleeves 15 are welded on the left and right sides of the filling head 2 respectively corresponding to the guide rods 14, and the guide sleeves 15 are sleeved with the guide rods 14. The guide rods 14 and the guide sleeves 15 are arranged to maintain the smoothness of the lifting and lowering movement of the baffle frame 8.

[0026] In one embodiment, a storage bin is installed inside the frame 1, and the storage bin is connected to the filling nozzle of the filling head 2 through a feeding pipe. The storage bin is provided to store magnesium hydroxide dry powder.

[0027] In one embodiment, the baffle frame 8 is composed of a U-shaped shell and a U-shaped plate welded on the inner top surface thereof, and a mounting hole is provided on the lower surface of the U-shaped shell of the baffle frame 8 corresponding to the dust suction pipe 10. Through the setting of the baffle frame 8, a semi-closed dust absorption protective structure can be formed for the filling nozzle after it is moved downward, which facilitates the recovery of dust (i.e., magnesium hydroxide particles).

[0028] In one embodiment, a plurality of electrostatic rods are installed inside the dust box 5, and the plurality of electrostatic rods are fixedly installed on the inner top surface of the dust box 5. Through the setting of the electrostatic rods, the absorbed magnesium hydroxide particles can be adsorbed on the surface of the electrostatic rods to prevent the magnesium hydroxide particles from flying around in the dust box 5. The electrostatic rod is provided with a control switch matching it, and the installation position of the control switch is selected according to actual use requirements, so as to facilitate the operator to perform operation and control.

[0029] Working principle:

[0030] When in use, first, the packaging bag is conveyed to the filling head 2 by the packaging bag opening conveying unit provided in conjunction with the frame 1. The filling head 2 then performs the filling operation of the magnesium hydroxide dry powder according to whether there is a packaging bag below it. When the full load of magnesium hydroxide dry powder is filled, it is conveyed out via the conveyor belt 3. When dust removal is performed, the cylinder 11 is started to make a reciprocating motion, so that the cylinder 11 pushes the baffle frame 8 to and fro under the action of the fixed block, so that the position of the baffle frame 8 can be reciprocatedly switched between the upper surface of the filling head 2 and the filling nozzle at the bottom of the filling head 2. As the packaging bags are opened in turn, they are placed directly below the filling head 2, so that the baffle frame 8 forms a semi-closed dust absorption structure during the stage of filling magnesium hydroxide with the filling head 2, thereby minimizing the dust leakage during the stage of filling magnesium hydroxide dry powder. By starting the dust suction fan 6, a negative pressure state is formed inside the dust collecting box 5, and then the dust suction pipe 10 and the dust suction hood 9 act as the dust suction pipe 10 to absorb the magnesium hydroxide powder diffused inside the baffle frame 8 and collect it inside the dust collecting box 5. When the absorbed magnesium hydroxide powder needs to be discharged, a packaging bag is set on the outer periphery of the discharge nozzle 17, and the baffle 18 inserted on the surface of the discharge nozzle 17 is pulled out in advance, and then the vibration motor 20 installed on the bottom surface of the elastic inclined plate 19 is started. Since a rubber frame 21 is provided between the side of the elastic inclined plate 19 and the inner wall of the dust collecting box 5, the vibration motor 20 will transfer the vibration to the elastic inclined plate 19, so that the magnesium hydroxide powder on the top surface of the elastic inclined plate 19 is continuously shaken until the magnesium hydroxide powder is fully discharged from the discharge nozzle 17, so that the magnesium hydroxide powder can be reused.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnesium hydroxide dry powder dust-free filling machine, comprising a frame (1), characterized in that: A filling head (2) is fixedly installed in a concave cavity in the middle of the frame (1), and a conveyor belt (3) is horizontally arranged below the filling head (2). The outer cover of the filling nozzle at the bottom of the filling head (2) is connected to a baffle frame (8), and dust suction pipes (10) are arranged on both left and right sides of the baffle frame (8), and one end of the dust suction pipe (10) extending to the inner side of the baffle frame (8) is connected to a dust suction cover (9). A receiving groove (4) is opened on the upper surface of the frame (1), and a dust collecting box (5) is fixedly installed in the receiving groove (4). The dust collecting box (5) ) is fixedly installed on the left side of the top surface, and the suction port of the dust suction fan (6) is connected to an exhaust hood (7) through a pipeline, a filter (16) is arranged between the exhaust hood (7) and the dust collecting box (5), a telescopic hose (12) is sleeved on the surface of the dust suction pipe (10), and the top end of the dust suction pipe (10) is connected to the dust collecting box (5), a cylinder (11) is fixedly installed on the back side of the filling machine head (2), and a fixing seat (13) welded to the outer surface of the baffle frame (8) is arranged at the bottom of the cylinder (11).

2. A magnesium hydroxide dry powder dust-free filling machine according to claim 1, characterized in that: The lower surface of the dust collecting box (5) is connected to a discharge nozzle (17), and a baffle (18) is inserted and fixed on the top surface of the discharge nozzle (17); an elastic inclined plate (19) is welded to the bottom of the inner side of the dust collecting box (5) corresponding to the discharge nozzle (17), and a rubber frame (21) is fixed between the elastic inclined plate (19) and the inner wall of the dust collecting box (5); and a vibration motor (20) is fixedly installed on the bottom surface of the elastic inclined plate (19).

3. A magnesium hydroxide dry powder dust-free filling machine according to claim 1, characterized in that: Guide rods (14) are welded to the left and right sides of the top surface of the baffle frame (8), and guide sleeves (15) are welded to the left and right sides of the filling machine head (2) respectively corresponding to the guide rods (14), and the guide sleeves (15) are sleeved with the guide rods (14).

4. A magnesium hydroxide dry powder dust-free filling machine according to claim 1, characterized in that: The frame (1) is internally equipped with a material storage bin, and the material storage bin is connected to the filling nozzle of the filling machine head (2) via a material supply pipeline.

5. A magnesium hydroxide dry powder dust-free filling machine according to claim 1, characterized in that: The baffle frame (8) is composed of a U-shaped shell and a U-shaped plate welded on the inner top surface thereof, and a mounting hole is provided on the lower surface of the U-shaped shell of the baffle frame (8) corresponding to the dust suction pipe (10).

6. A magnesium hydroxide dry powder dust-free filling machine according to claim 1, characterized in that: The dust collecting box (5) has a plurality of electrostatic rods installed therein, and the plurality of electrostatic rods are fixedly installed on the inner top surface of the dust collecting box (5).

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