Wet vacuum extrusion molding device for sintered bauxite

Abstract

The utility model relates to a wet-process vacuum mud extrusion forming device for sintered bauxite in the technical field of forming equipment. The wet-process vacuum mud extrusion forming device comprises a vacuum mud extruder, an arc-shaped baffle is fixed to a discharging port of the vacuum mud extruding machine, a mud outlet corresponding to the discharging port is formed in the arc-shaped baffle, and the arc-shaped baffle is matched with a forming assembly. The forming assembly comprises an upper rotary disc and a lower rotary disc, a fixing ring is arranged between the upper rotary disc and the lower rotary disc, and the lower rotary disc is connected with a stepping motor. The forming device has the advantages that materials discharged by the vacuum mud extruding machine can be shaped, continuous operation without shutdown can be achieved, the forming device is simple in structure and convenient to operate, the production efficiency is improved, the production cost is reduced, the production cost is reduced, and the production efficiency is improved. The forming efficiency is improved; the formed materials can be sequentially conveyed to the next procedure through the belt conveyor, the formed materials are high in stability and convenient to place, and follow-up efficient production is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of molding equipment, and in particular relates to a wet vacuum mud extrusion molding device for sintering bauxite. Background Art

[0002] Calcium aluminate powder is the main raw material for producing polyaluminum, a water purifier. Calcium aluminate powder is made from high-grade bauxite and limestone through crushing, drying, ball milling, billeting, sintering, and grinding. Before sintering bauxite, it is necessary to use a wet vacuum extrusion molding device to billet the bauxite, and then transport the formed billet to a rotary kiln for sintering. Patent No. CN203460293U discloses a mud extruder, including a base, a motor seat is arranged on one side of the upper part of the base; a motor frame is arranged on the upper part of the motor seat; a motor is arranged on the motor frame; the motor is connected to a feeder; a feed port is arranged on the upper part of the feeder; the feeder is connected to a vacuum box; a pressure gauge is arranged on the upper part of the vacuum box; a vacuum pump is arranged on the lower part of the vacuum box; the vacuum pump is connected to the vacuum box through a vacuum tube; an air outlet pipe is arranged on the vacuum pump; the vacuum box is connected to a discharge pipe; a first bearing and a second bearing are arranged in the discharge pipe; the discharge pipe is connected to the discharge port. Although the mud extruded by the above patent has a high density and no bubbles inside, the extruded mud is in the shape of a long tube, which not only needs to be further cut, but also is unstable to place, which is not conducive to the subsequent sintering (calcining) operation, has many processes, is time-consuming and labor-intensive, and has high cost. Therefore, a wet vacuum mud extrusion molding device for sintering bauxite is needed to solve the above technical problems. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the utility model provides a wet vacuum mud extrusion molding device for sintering bauxite, comprising a vacuum mud extruder; a discharge port of the vacuum mud extruder is fixed with an arc-shaped baffle, a mud discharge port corresponding to the discharge port is arranged on the arc-shaped baffle, and a molding component is matched with the arc-shaped baffle;

[0004] The forming assembly comprises an upper turntable and a lower turntable, a fixing ring is arranged between the upper turntable and the lower turntable, the central axis of the fixing ring passes through the center of the circle of the upper turntable and the lower turntable, the upper end surface of the fixing ring is fixedly connected to the lower surface of the upper turntable, the lower end surface of the fixing ring is fixedly connected to the upper surface of the lower turntable, and the lower turntable is connected to a stepping motor; a plurality of baffles are evenly fixed on the circumferential upper edge of the outer ring surface of the fixing ring, and the plurality of baffles are radially distributed along the outer ring surface of the fixing ring, and two adjacent baffles are connected to the fixing ring, the upper turntable and the lower turntable. A molding cavity with an opening on one side is formed between the turntable and the lower turntable, and the opening of the molding cavity matches the arc-shaped baffle. The upper and lower ends of the arc-shaped baffle are rotatably connected to the corresponding upper and lower turntables through bearings (bearing rotation seal) to reduce the occurrence of material leakage when injecting material into the molding cavity. A push plate is provided in the molding cavity, and the push plate cooperates with the outer ring surface of the fixed ring. The push plate is connected to a retractable push rod, and the fixed end of the push rod is fixed in the fixed ring. The retractable end of the push rod extends into the molding cavity and is fixedly connected to the push plate. The lower turntable and the upper turntable are driven to rotate by a stepper motor. After each rotation stops, the opening of the corresponding molding cavity cooperates with the arc baffle, and the arc baffle seals the corresponding molding cavity. The mud extrusion barrel fills the corresponding molding cavity with materials. Then, the stepper motor rotates again until the other molding cavity cooperates with the arc baffle, and the mud extrusion barrel fills the corresponding molding cavity with materials again. When the molding cavity filled with materials rotates away from the vacuum mud extruder, the push plate in the molding cavity pushes the molded material out of the molding cavity under the action of the push rod. The molding cavity is arranged in a fan-shaped ring. When the push plate pushes the molding material out of the molding cavity, as the molding material is continuously pushed out, the contact area between the molding material and the baffles on both sides is continuously reduced until there is no contact, and the friction force is continuously reduced until it disappears, which further improves the discharge efficiency and reduces the damage to the molding material.

[0005] Preferably, the push rod is an electric push rod, and the electric push rod is connected to an external power source through a conductive slip ring. This arrangement allows the electric push rod to be normally retracted when the lower turntable rotates.

[0006] Preferably, a wire tube is fixed at the center of the fixed ring, and the wires of each electric push rod extend out of the fixed ring through the wire tube and are connected to the conductive slip ring.

[0007] Preferably, the molding assembly is equipped with a belt conveyor, and the conveying plane of the belt conveyor is flush with the upper surface of the lower turntable. When the molding cavity filled with materials rotates to the belt conveyor, the push plate in the molding cavity pushes the molded materials out of the molding cavity under the action of the push rod, and enters the belt conveyor to be transported to the next process. This place is set to continuously and uniformly transport the materials pushed out of the molding cavity.

[0008] Preferably, the vacuum mud extruder comprises a horizontal mud extruder barrel 1 and a horizontal mud extruder barrel 2, wherein the mud extruder barrel 1 is fixed on a base, the discharge port of the mud extruder barrel 1 is connected to the mud discharge port, the feed port of the mud extruder barrel 1 is connected to a vacuum box, the vacuum box is provided with an air extraction pipe, the discharge end of the mud extruder barrel 2 is connected to the vacuum box, the feed end of the mud extruder barrel 2 is connected to a feed hopper, and the mud extruder barrel 1 and the mud extruder barrel 2 are both provided with a feeding screw, and both feeding screws are connected to a drive. The rotating rod of the feeding screw in the mud extruder barrel 2 extends into the vacuum box and is connected to a stirring blade, so as to efficiently feed the material in the vacuum box into the mud extruder barrel 1, and the mud extruder barrel 2 cooperates with the vacuum box to mix the material while discharging the bubbles contained therein, thereby improving the compactness of the material.

[0009] Preferably, the drive includes a rotary motor, one end of the two feeding screws extends out of the first and second slurry extruders respectively and is connected to a sprocket, the two sprockets are connected by a chain, and one of the feeding screws is connected to the output shaft of the rotary motor. One rotary motor is used to drive the two feeding screws to rotate, thereby improving the utilization rate of energy.

[0010] The utility model also includes other components that enable a wet vacuum extrusion molding device for sintering bauxite to be used normally, such as a stepper motor control component, a rotary motor control component, an electric push rod control component, a belt conveyor control component, etc., which are conventional technical means in the field. In addition, the devices or components not limited in the utility model, such as conductive slip rings, electric push rods, feeding screws, sprockets, chains, belt conveyors, etc., all adopt conventional technical means and conventional equipment in the field.

[0011] The beneficial effects of the utility model are as follows: the structure is reasonable, and the material discharged by the vacuum squeezer can be shaped, and the shaping can realize continuous operation without stopping the machine, thereby improving the forming efficiency; the formed material can be sequentially conveyed to the next process by the belt conveyor, and the formed material has high stability and will not roll back and forth, so it is easy to place. The entire forming process saves time and effort, reduces labor costs, and is conducive to subsequent efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of a wet vacuum mud extrusion molding device for sintering bauxite in an embodiment of the utility model;

[0014] Figure 2 for Figure 1 Cross-sectional view of a molded component.

[0015] In the figure: 1. Mud squeezing cylinder 2; 2. Feed hopper; 3. Vacuum box; 4. Mud squeezing cylinder 1; 5. Air suction pipe; 6. Rotating motor; 7. Chain; 8. Arc baffle; 9. Upper turntable; 10. Lower turntable; 11. Push rod; 12. Wire tube; 13. Push plate; 14. Molding material; 15. Stepper motor; 16. Belt conveyor; 17. Fixed ring; 18. Partition; 19. Molding cavity; 20. Mud outlet. DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0017] Example

[0018] like Figure 1-2 As shown, the utility model provides a wet vacuum mud extrusion molding device for sintering bauxite, including a vacuum mud extruder; a discharge port of the vacuum mud extruder is fixed with an arc-shaped baffle plate 8, and a mud discharge port 20 corresponding to the discharge port is provided on the arc-shaped baffle plate 8, and the arc-shaped baffle plate 8 is matched with a molding component;

[0019] The molding assembly includes an upper turntable 9 and a lower turntable 10, a fixing ring 17 is arranged between the upper turntable 9 and the lower turntable 10, the central axis of the fixing ring 17 passes through the center of the circle of the upper turntable 9 and the lower turntable 10, the upper end surface of the fixing ring 17 is fixedly connected to the lower surface of the upper turntable 9, the lower end surface of the fixing ring 17 is fixedly connected to the upper surface of the lower turntable 10, and the lower turntable 10 is connected to a stepping motor 15; a plurality of baffles 18 are evenly fixed on the circumferential direction of the outer ring surface of the fixing ring 17, and the plurality of baffles 18 are radially distributed along the outer ring surface of the fixing ring 17, and two adjacent baffles 18 are connected to the fixing ring 17 and the upper turntable 9. A molding cavity 19 with an opening on one side is formed between the turntable 9 and the lower turntable 10. The opening of the molding cavity 19 matches the arc baffle 8. The upper and lower ends of the arc baffle 8 are rotatably connected to the corresponding upper turntable 9 and lower turntable 10 through bearings (bearing rotation seal) to reduce the occurrence of material leakage when injecting material into the molding cavity 19. A push plate 13 is provided in the molding cavity 19. The push plate 13 cooperates with the outer ring surface of the fixed ring 17. The push plate 13 is connected to a retractable push rod 11. The fixed end of the push rod 11 is fixed in the fixed ring 17, and the retractable end of the push rod 11 extends into the molding cavity 19 and is fixedly connected to the push plate 13. The lower turntable 10 and the upper turntable 9 are driven to rotate by the stepper motor 15. After each rotation stops, the opening of the corresponding molding cavity 19 cooperates with the arc baffle 8, and the arc baffle 8 seals the corresponding molding cavity 19. The mud extrusion cylinder 4 fills the corresponding molding cavity 19 with materials. Then the stepper motor 15 rotates again until another molding cavity 19 cooperates with the arc baffle 8. The mud extrusion cylinder 4 fills the corresponding molding cavity 19 with materials again. When the molding cavity 19 filled with materials rotates away from the vacuum mud extruder, the push plate 13 in the molding cavity 19 pushes the molding material 14 out of the molding cavity 19 under the action of the push rod 11.

[0020] The push rod 11 is an electric push rod 11, and the electric push rod 11 is connected to an external power supply through a conductive slip ring. This arrangement allows the electric push rod 11 to be normally retracted when the lower turntable 10 rotates.

[0021] A wire tube 12 is fixed at the center of the fixed ring 17 , and the wires of each electric push rod 11 extend out of the fixed ring 17 through the wire tube 12 and are connected to the conductive slip ring.

[0022] The molding assembly is equipped with a belt conveyor 16, and the conveying plane of the belt conveyor 16 is flush with the upper surface of the lower turntable. When the molding cavity 19 filled with materials rotates to the belt conveyor 16, the push plate 13 in the molding cavity 19 pushes the molding material 14 out of the molding cavity 19 under the action of the push rod 11, and enters the belt conveyor 16 to be transported to the next process. This place is set to continuously and uniformly transport the molding material 14 pushed out of the molding cavity 19.

[0023] The vacuum mud extruder includes a horizontal mud extruder 14 and a horizontal mud extruder 21. The mud extruder 14 is fixed on the base. The discharge port of the mud extruder 14 is connected to the mud discharge port 20. The feed port of the mud extruder 14 is connected to a vacuum box 3. The vacuum box 3 is provided with an air extraction pipe 5. The discharge end of the mud extruder 21 is connected to the vacuum box 3. The feed end of the mud extruder 21 is connected to a feed hopper 2. The mud extruder 14 and the mud extruder 2 are both provided with feeding screws, and both feeding screws are connected to a drive. The mud extruder 21 cooperates with the vacuum box 3 to mix the material while discharging the bubbles contained therein, thereby improving the compactness of the material.

[0024] The drive includes a rotary motor 6, one end of the two feeding screws are respectively extended out of the mud extrusion barrel 1 4 and the mud extrusion barrel 2 and connected to a sprocket, the two sprockets are connected by a chain 7, and one of the feeding screws is connected to the output shaft of the rotary motor 6. One rotary motor 6 is used to drive the two feeding screws to rotate, thereby improving the utilization rate of energy.

[0025] Working principle: the material enters the mud extruder 2 through the feed hopper and is fully mixed (kneaded). The mud extruder 2 cooperates with the vacuum box to stir and mix the material while expelling the bubbles contained therein. The material in the vacuum box is sent into the mud extruder 1 and then discharged from the discharge port of the mud extruder 1 and enters the molding cavity that cooperates with the arc baffle. After the molding cavity is filled, the material is molded. Subsequently, the stepper motor rotates until another molding cavity cooperates with the arc baffle. The mud extruder 1 fills the corresponding molding cavity with material again. When the molding cavity filled with material rotates to the belt conveyor, the push plate in the molding cavity pushes the molding material 14 out of the molding cavity under the action of the push rod. The molding material 14 enters the belt conveyor 16 and is transported to the next process.

[0026] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wet vacuum extrusion molding device for sintering bauxite, comprising a vacuum extruder; characterized in that: The discharge port of the vacuum mud extruder is fixed with an arc-shaped baffle, the arc-shaped baffle is provided with a mud discharge port corresponding to the discharge port, and the arc-shaped baffle is matched with a forming component; The molding assembly comprises an upper turntable and a lower turntable, wherein a fixing ring is provided between the upper turntable and the lower turntable, and a central axis of the fixing ring passes through the center of the circle of the upper turntable and the lower turntable, and the upper end surface of the fixing ring is fixedly connected to the lower surface of the upper turntable, and the lower end surface of the fixing ring is fixedly connected to the upper surface of the lower turntable, and the lower turntable is connected to a stepping motor; a plurality of partitions are evenly fixed on the circumferential direction of the outer ring surface of the fixing ring, and the plurality of partitions are radially distributed along the outer ring surface of the fixing ring, and two adjacent partitions and the fixing ring, the upper turntable and the lower turntable form a molding cavity with an opening on one side, and the opening of the molding cavity matches the arc baffle, and a push plate is provided in the molding cavity, and the push plate cooperates with the outer ring surface of the fixing ring, and the push plate is connected to a retractable push rod, and the fixed end of the push rod is fixed in the fixing ring, and the retractable end of the push rod extends into the molding cavity and is fixedly connected to the push plate.

2. The wet vacuum extrusion molding device for sintering bauxite according to claim 1, characterized in that: The push rod is an electric push rod, and the electric push rod is connected to an external power supply through a conductive slip ring.

3. A wet vacuum extrusion molding device for sintering bauxite according to claim 2, characterized in that: A wire tube is fixed at the center of the fixed ring, and the wires of each electric push rod extend out of the fixed ring through the wire tube and are connected to the conductive slip ring.

4. The wet vacuum extrusion molding device for sintering bauxite according to claim 1, characterized in that: The forming assembly is matched with a belt conveyor, and the conveying plane of the belt conveyor is flush with the upper surface of the lower turntable.

5. The wet vacuum extrusion molding device for sintering bauxite according to claim 1, characterized in that: The vacuum mud extruder comprises a horizontal mud extruder cylinder 1 and a horizontal mud extruder cylinder 2. The discharge port of the mud extruder cylinder 1 is connected with the mud discharge port, the feed port of the mud extruder cylinder 1 is connected with a vacuum box, the vacuum box is provided with an exhaust pipe, the discharge end of the mud extruder cylinder 2 is connected with the vacuum box, and feeding screws are provided in the mud extruder cylinder 1 and the mud extruder cylinder 2, and the two feeding screws are connected with a drive.

6. The wet vacuum extrusion molding device for sintering bauxite according to claim 5, characterized in that: The drive comprises a rotating motor, one end of the two feeding screws respectively extends out of the mud squeezer 1 and the mud squeezer 2 and is connected to a sprocket, the two sprockets are connected by a chain, and one of the feeding screws is connected to the output shaft of the rotating motor.

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