Counterweight type turning plate blanking device

Abstract

The utility model discloses a counter weight type turning plate blanking device which comprises a blanking inner cavity, a feeding port and a discharging port are formed in the top and the bottom of the blanking inner cavity respectively, turning plates are arranged on the left side and the right side of the interior of the blanking inner cavity respectively, and turning plate rotating shafts extending in the longitudinal direction are connected to the ends, close to the left side wall and the right side wall, of the turning plates. The two ends of the turning plate rotating shaft extend out of the discharging inner cavity, balance weight rods are connected to the two end shaft bodies extending out of the discharging inner cavity, balance weight blocks are arranged at the lower ends of the balance weight rods, an access hole is further formed in the side wall of the discharging inner cavity, and an access door is arranged on the outer wall of the access hole. According to the utility model, a counter weight type double-turning-plate structure is arranged, so that the blanking of materials can be automatically realized under the action of gravity, the structural form is simple, and the occupied space is smaller. And a double-turning-plate structure is arranged, so that hot air flow can be prevented from entering equipment in the next process.

Description

Technical Field

[0001] This utility model relates to a counterweight-type flip-plate feeding device, belonging to the technical field of alumina production equipment. Background Technology

[0002] The calcining furnace is a specialized piece of equipment used in alumina plants to calcine aluminum hydroxide into alumina at high temperatures. The calcined alumina is discharged through a discharge pipe, typically a cylindrical pipe. The upper part of the discharge pipe connects to the calcining furnace body, and the lower part connects to subsequent process equipment. Because the temperature in the upper discharge pipe reaches over 500℃, hot airflow can enter the next process equipment through the discharge pipe, affecting its production. Therefore, preventing the high-temperature hot airflow from entering the next process equipment has become an urgent technical problem to be solved. Summary of the Invention

[0003] The purpose of this invention is to provide a counterweight-type flip-plate unloading device. By installing a flip plate inside the device, high-temperature hot airflow can be prevented from entering the next process equipment.

[0004] The technical solution of this utility model is as follows: A counterweight-type flip-plate unloading device includes an unloading cavity, the top and bottom of which are the inlet and outlet, respectively. A flip plate is provided on the left and right sides inside the unloading cavity. A flip plate rotating shaft extending longitudinally is connected to the end of the flip plate that is close to the left and right side walls. Both ends of the flip plate rotating shaft extend to the outside of the unloading cavity. A counterweight rod is connected to the shaft at both ends that extend to the outside of the unloading cavity. A counterweight block is provided at the lower end of the counterweight rod. An inspection port is also provided on the side wall of the unloading cavity. An inspection door is provided on the outer wall of the inspection port.

[0005] In the aforementioned counterweight-type flip-plate feeding device, two flip plates are symmetrically arranged on the left and right sides with the axis of the feeding cavity as the center.

[0006] In the aforementioned counterweight-type flip-plate feeding device, both ends of the flip-plate shaft extend outside the feeding cavity, and counterweight rods are connected to both ends of the shaft extending outside the feeding cavity.

[0007] In the aforementioned counterweight-type flip-plate unloading device, a bearing seat is also provided on the outer wall of the unloading inner cavity, and the head end of the flip-plate shaft extending outside the unloading inner cavity extends into the bearing seat.

[0008] In the aforementioned counterweight-type flip-plate unloading device, an inspection port is also provided on the side wall of the unloading inner cavity, and an inspection door is provided on the outer wall of the inspection port.

[0009] In the aforementioned counterweight-type flip-plate unloading device, there are two inspection doors, which are respectively located on the left and right side walls of the unloading cavity.

[0010] In the aforementioned counterweight-type flip-plate unloading device, both the inlet and outlet are equipped with connecting flanges.

[0011] In the aforementioned counterweight-type flip-plate unloading device, the counterweight block is movably sleeved in the counterweight rod.

[0012] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model features a counterweight-type double-flip plate structure, which can automatically discharge materials under the action of gravity. The structure is simple and occupies less space. Furthermore, the double-flip plate structure can prevent hot airflow from entering the next process equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the side structure;

[0015] Figure 3 for Figure 1 A top-view structural diagram.

[0016] Attached reference numerals: 1-Inlet, 2-Outlet, 3-Discharge cavity, 4-Counterweight rod, 5-Inspection door, 6-Flip plate shaft, 7-Flip plate, 8-Shaft seat, 9-Counterweight block. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0018] An embodiment of this utility model: A counterweight-type flip-plate unloading device includes an unloading cavity 3, with an inlet 1 at the top and an outlet 2 at the bottom. A flip plate 7 is provided on the left and right sides inside the unloading cavity 3. A flip plate shaft 6 extending longitudinally is connected to the end of the flip plate 7 that is close to the left and right side walls. Both ends of the flip plate shaft 6 extend to the outside of the unloading cavity 3. A counterweight rod 4 is connected to the shaft at both ends that extend to the outside of the unloading cavity 3. A counterweight block 9 is provided at the lower end of the counterweight rod 4. An inspection port is also provided on the side wall of the unloading cavity 3. An inspection door 5 is provided on the outer wall of the inspection port.

[0019] In the operation of this invention, alumina from the calcining furnace enters the upper chamber of the flap 7 of the feeding device through the discharge pipe. At this time, the left flap 7 in the feeding chamber 3, under the action of the counterweight 9 on its connected flap shaft 6, tends to rotate counterclockwise around the shaft 6, while the right flap 7 tends to rotate clockwise around the shaft 6. When the adjacent ends of the two flaps 7 contact each other, they can seal the material. When the alumina on the flap 7 accumulates to a certain weight, gravity presses down on the flap 7, causing it to rotate around the shaft 6, opening the flap 6 and allowing the alumina material to fall into the lower chamber and be discharged to the next process equipment. After the alumina discharge is completed, the counterweight 9 causes the flap shaft 6 to drive the flap 7 upwards to reset, thereby closing the feeding device and stopping the feeding process. During the discharge process, the flap 7 blocks most of the high-temperature hot airflow from entering the next process equipment.

[0020] Counterweight rods 4 are connected to both ends of the shaft extending outside the inner cavity 3, so that the two ends of the flap shaft 6 are in a state of force balance under the action of the two counterweight rods 4. When only one end is equipped with a counterweight rod 4, a seesaw structure will be formed, affecting the rotation of the flap shaft 6. An inspection door 5 is provided to facilitate the inspection of the inside of the inner cavity 3.

[0021] The flap 7 has two pieces arranged symmetrically on the left and right sides with the axis of the inner cavity 3 below as the center.

[0022] A bearing seat 8 is also provided on the outer wall of the inner wall of the feeding cavity 3. The head end of the flip plate rotating shaft 6 extending out of the inner wall of the feeding cavity 3 extends into the bearing seat 8, and the flip plate rotating shaft 6 is supported by the bearing seat 8.

[0023] Two inspection doors 5 are provided to facilitate maintenance of different locations inside the material unloading cavity 3. The two inspection doors 5 are respectively located on the left and right side walls of the material unloading cavity 3, offset from the location of the flap pivot 6. When maintenance is needed, the inspection doors 5 are not obstructed by the flap pivot 6 and can be easily opened.

[0024] Both the feed inlet 1 and the discharge outlet 2 are equipped with connecting flanges. The connecting flange of the feed inlet 1 facilitates connection with the discharge pipe, while the connecting flange of the discharge outlet 2 facilitates connection with the flange structure of the next process equipment.

[0025] The counterweight 9 is movably sleeved in the counterweight rod 4, and the two are fixedly connected by a pin passing through the counterweight 9 and the counterweight rod 4. This structure facilitates the replacement of the counterweight 9. By replacing the counterweight with a counterweight of different weight, materials of different weights can be supported by the double-flip plate 7 structure.

[0026] To improve the blocking effect during the material discharge process, multiple counterweight-type flap feeding devices of this invention can be connected in series on the discharge pipe. Furthermore, the weight of the material in the discharge pipe can be controlled, allowing the material to be discharged in multiple batches.

Claims

1. A counterweight-type flip-plate unloading device, characterized in that: It includes a feeding cavity (3), with the top and bottom of the feeding cavity (3) being the inlet (1) and the outlet (2) respectively. There is a flap (7) on the left and right sides inside the feeding cavity (3). The flap (7) is connected to a flap shaft (6) extending longitudinally at the end of the left and right side walls. Both ends of the flap shaft (6) extend to the outside of the feeding cavity (3). There are counterweight rods (4) on the shafts extending to the outside of the feeding cavity (3). There are counterweight blocks (9) at the lower end of the counterweight rods (4). There is also an inspection port on the side wall of the feeding cavity (3). There is an inspection door (5) on the outer wall of the inspection port.

2. The counterweight-type flip-plate unloading device according to claim 1, characterized in that: The flap (7) is centered on the axis of the inner cavity (3) of the material feed, and two flaps are symmetrically arranged on the left and right.

3. The counterweight-type flip-plate unloading device according to claim 1, characterized in that: A bearing seat (8) is also provided on the outer wall of the inner wall of the feeding cavity (3), and the head end of the flip plate shaft (6) extending out of the inner wall of the feeding cavity (3) extends into the bearing seat (8).

4. The counterweight-type flip-plate unloading device according to claim 1, characterized in that: There are two inspection doors (5), which are respectively located on the left and right side walls of the material unloading cavity (3).

5. The counterweight-type flip-plate unloading device according to claim 1, characterized in that: Both the inlet (1) and outlet (2) are equipped with connecting flanges.

6. The counterweight-type flip-plate unloading device according to claim 1, characterized in that: The counterweight (9) is movably sleeved in the counterweight rod (4).

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