Feeding device of roller dryer

Abstract

The utility model relates to the technical field of material putting, and discloses a feeding device of a roller dryer, which comprises a feeding cylinder arranged at the feeding end of the roller dryer and a material putting cylinder arranged on the feeding cylinder, the material putting barrel is communicated with the feeding barrel; a discharging box is installed in the material feeding barrel in an up-down sliding mode, a discharging opening is formed in one side of the lower portion of the discharging box, the discharging box is installed in the material feeding barrel in an up-down sliding mode, the discharging opening is formed in the discharging box, and when the discharging opening extends into the feeding barrel, the discharging opening is communicated with the discharging box. Materials can directly fall into the roller dryer through the discharging opening in the side portion, and the situation that the materials fall into the feeding barrel to cause blockage is avoided. Under the condition that materials are not discharged, the discharging box can be contracted into the material feeding cylinder, the situation that the feeding cylinder is blocked by the discharging box and the air inlet amount is affected is reduced, meanwhile, the situation that the discharging box is damaged due to long-time blowing of hot air is also reduced, and therefore the service life of the feeding device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of material feeding technology, specifically a feeding device for a drum dryer. Background Technology

[0002] Rotary drum dryers are widely used in various industries to dry slag, clay, coal, iron powder, mineral powder, and other mixed materials. Examples include drying dry-mixed mortar and yellow sand in the construction industry, as well as raw materials in the chemical and foundry industries.

[0003] When feeding materials into a rotary drum dryer, a feeding device is usually required. There are generally two types of feeding devices available on the market: one (such as...) Figure 1 As shown); typically, a material feeding cylinder is directly installed on the feed cylinder. The material inside the material feeding cylinder falls vertically into the feed cylinder, and then enters the drum dryer through the feed cylinder. However, with prolonged use, some material often accumulates inside the feed cylinder, easily causing blockages; regular cleaning by staff is required; secondly (as shown) Figure 2 As shown, an extension pipe a is added to the above-mentioned feeding device, extending into the drum dryer. The material falls directly into the drum dryer through the extension pipe a. Although this method can overcome the problem of clogging, the extension pipe a is located inside the feeding cylinder whether it is in use or not. If the hot air released by the drying device enters the drum dryer through the feeding cylinder, the extension pipe a will block the hot air, resulting in poor air intake. In addition, the extension pipe a is easily damaged when it is blown by hot air for a long time, which shortens the service life of the feeding device.

[0004] Therefore, we propose a feeding device for a rotary drum dryer to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to solve the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a feeding device for a rotary drum dryer, comprising a feeding cylinder installed at the feeding end of the rotary drum dryer and a material dispensing cylinder installed on the feeding cylinder; the material dispensing cylinder and the feeding cylinder are interconnected; a feeding box is installed inside the material dispensing cylinder in a sliding manner, and a feeding port is opened on one side of the lower part of the feeding box. When the feeding port extends into the interior of the feeding cylinder, the material enters the interior of the rotary drum dryer through the feeding port.

[0007] Furthermore: the material dispensing cylinder includes a lower dispensing cylinder and an upper dispensing cylinder fixed on the lower dispensing cylinder, and the opening of the upper dispensing cylinder is larger than the opening of the lower dispensing cylinder.

[0008] Furthermore, the top of the feeding box is provided with an outwardly expanding annular plate, the opening of which is larger than the opening of the lower feeding cylinder and smaller than the opening of the upper feeding cylinder.

[0009] Furthermore, the bottom of the feeding box is provided with an inclined slope, the end of the slope near the feeding port is the low end, and the end of the slope away from the feeding port is the high end.

[0010] Furthermore, a limiting rod is fixed to the lower part of the annular plate, and the bottom end of the limiting rod penetrates the bottom of the upper delivery cylinder and extends to the outside of the lower delivery cylinder.

[0011] Furthermore: a compression spring is fitted on the limiting rod, and the top and bottom of the compression spring are respectively in contact with the first pressure block and the second pressure block. The first pressure block is fixed to the outer side wall of the annular plate, and the second pressure block is fixed to the inner side wall of the dispensing cylinder.

[0012] Furthermore, a nut is threaded onto the bottom end of the limiting rod, and the nut is located outside the lower delivery cylinder.

[0013] The beneficial effects of this utility model are:

[0014] This invention features a feeding box and a feeding port installed inside the material feeding cylinder via a sliding mechanism. When the feeding port extends into the feeding cylinder, the material can fall directly into the drum dryer through the side feeding port, preventing material from falling into the feeding cylinder and causing blockage. When no material is being fed, the feeding box can retract into the material feeding cylinder, reducing the impact of the feeding box on the air intake due to blockage. It also reduces the risk of damage to the feeding box caused by prolonged exposure to hot air, thereby extending the service life of the feeding device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first prior art structure in this utility model;

[0016] Figure 2 This is a schematic diagram of the second prior art structure in this utility model;

[0017] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the present invention;

[0020] Figure 6 This is a partial structural schematic diagram of the present invention.

[0021] The names corresponding to each mark in the diagram:

[0022] 1. Feeding cylinder; 2. Material feeding cylinder; 21. Lower feeding cylinder; 22. Upper feeding cylinder; 3. Feeding box; 31. Annular plate; 4. Feeding port; 5. Slope; 6. Limiting rod; 7. Compression spring; 8. First pressure block; 9. Second pressure block; 10. Nut. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0024] A feeding device for a rotary drum dryer is disclosed, which is to be installed between the rotary drum dryer (not shown in the figure) and the drying device (not shown in the figure) for use. It should be noted that the rotary drum dryer and the drying device are both prior art, and will not be described in detail in this application.

[0025] The feeding device includes a feeding cylinder 1, which needs to be installed on a support frame 11 for use. It should be noted that: one end of the feeding cylinder 1 is an air inlet end, which is connected to the air inlet of the drying device, and the other end of the feeding cylinder 1 is a discharge end, which is connected to the material feeding port of the drum dryer. The discharge end can not only feed materials into the drum dryer, but also release hot air into the drum dryer to dry the materials inside the drum dryer. A material feeding cylinder 2 is installed on the top of the feeding cylinder 1, which is used to feed materials into the feeding cylinder 1.

[0026] Specifically: The material feeding cylinder 2 includes a lower feeding cylinder 21 and an upper feeding cylinder 22. The lower feeding cylinder 21 is fixed on the outer surface of the feeding cylinder 1 and the lower feeding cylinder 21 and the feeding cylinder 1 are interconnected. The bottom of the upper feeding cylinder 22 is provided with an outwardly bent first bending plate (not shown in the figure), and the first bending plate is fixed on the top of the lower feeding cylinder 21. It should be noted that the opening of the upper feeding cylinder 22 is larger than the opening of the lower feeding cylinder 21, which facilitates the feeding of materials into the feeding cylinder 1.

[0027] The lower feeding cylinder 21 is equipped with a feeding box 3, and the upper part of the feeding box 3 is provided with an annular plate 31. It should be noted that the bottom of the annular plate 31 is provided with an inwardly bent second bending plate, and the second bending plate is fixed to the top of the feeding box 3. The opening of the annular plate 31 is larger than the opening of the feeding cylinder 21 but smaller than the opening of the feeding cylinder 22. The setting of the annular plate 31 serves to limit the feeding box 3 and prevent the feeding box 3 from falling into the feeding cylinder 1. A feeding port 4 is opened on one side of the lower part of the feeding box 3, so that the material in the feeding box 3 can fall into the inside of the rotary drum dryer through the feeding port 4, avoiding the phenomenon of clogging the feeding cylinder 1. It should be noted that the bottom of the feeding box 3 is provided with an inclined slope 5. The end of the slope 5 near the feeding port 4 is the bottom end, and the end of the slope 5 away from the feeding port 4 is the high end. The setting of the slope 5 allows the material to fall into the inside of the rotary drum dryer more smoothly.

[0028] Several limiting rods 6 are fixed on the second bending plate, and the limiting rods 6 extend through the first bending plate to the outside of the lower feeding cylinder 21. The limiting rods 6 are used to limit the feeding box 3 and prevent the feeding box 3 from shaking during use.

[0029] A nut 10 is threaded onto the bottom end of the limiting rod 6. The nut 10 is located outside the lower feeding cylinder 21. The nut 10 is used to limit the limiting rod 6 and prevent the feeding box 3 from being taken out of the material feeding cylinder 2.

[0030] A compression spring 7 is also fitted on the limiting rod 6, and the compression spring 7 is located between the feeding box 3 and the lower feeding cylinder 21. The two ends of the compression spring 7 abut against the first pressing block 8 and the second pressing block 9 respectively. The first pressing block 8 is fixed to the outer side wall of the second bending plate, and the second pressing block 9 is fixed to the inner side wall of the first bending plate. The compression spring 7 serves to reset the feeding box 3.

[0031] When feeding materials into the drum dryer, materials are first fed into the feed hopper 3. As the amount of material in the feed hopper 3 increases, the increment also increases. If the multiple compression springs 7 are insufficient to support the weight of the material, the annular plate 31 can drive several limit rods 6 to move downward and squeeze the compression springs 7. At this time, the compression springs 7 change from their original state to a compressed state. The feed hopper 3 can drive the feed port 4 to move downward. If the feed port 4 extends into the feed cylinder 1, the material flows into the drum dryer through the feed port 4, preventing the material from falling into the feed cylinder 1 and causing blockage. This reduces the cleaning process for the staff and provides convenience for the staff.

[0032] If the weight of the material in the feeding box 3 is less than the supporting force of several compression springs 7, the multiple compression springs 7 can return from the compressed state to the original state and push the feeding box 3 to move upward, so that the feeding box 3 can drive the feeding port 4 to move upward. The feeding box 3 can retract into the interior of the lower feeding cylinder 21, and when the feeding port 4 is in contact with the inner wall of the lower feeding cylinder 21, it plays a closing role, preventing the feeding box 3 from blocking the feeding cylinder 1.

[0033] When drying materials in the rotary drum dryer, the drying device can be turned on directly. The hot air released by the drying device enters the interior of the rotary drum dryer through the feed cylinder 1, avoiding the obstruction of the hot air by the discharge box 3, thus achieving a good drying effect. At the same time, when not in use, the discharge box 3 can be retracted into the lower feeding cylinder 21, and the hot air released by the drying device will not blow on the discharge box 3 for a long time, avoiding damage caused by the discharge box 3 being blown by hot air for a long time.

Claims

1. A feeding device for a rotary drum dryer, comprising a feeding cylinder (1) installed at the feeding end of the rotary drum dryer and a material dispensing cylinder (2) installed on the feeding cylinder (1); wherein the material dispensing cylinder (2) is in communication with the feeding cylinder (1); characterized in that ； The material feeding cylinder (2) has a feeding box (3) installed inside by sliding up and down, and a feeding port (4) is opened on one side of the lower part of the feeding box (3). When the feeding port (4) extends into the inside of the feeding cylinder (1), the material enters the inside of the drum dryer through the feeding port (4).

2. The feeding device for a rotary drum dryer according to claim 1, characterized in that: The material delivery cylinder (2) includes a lower delivery cylinder (21) and an upper delivery cylinder (22) fixed on the lower delivery cylinder (21), and the opening of the upper delivery cylinder (22) is larger than the opening of the lower delivery cylinder (21).

3. The feeding device for a rotary drum dryer according to claim 2, characterized in that: The top of the feeding box (3) is provided with an outwardly expanding annular plate (31), the opening of which is larger than the opening of the lower feeding cylinder (21) and smaller than the opening of the upper feeding cylinder (22).

4. The feeding device for a rotary drum dryer according to claim 3, characterized in that: The bottom of the feeding box (3) is provided with an inclined slope (5). The end of the slope (5) near the feeding port (4) is the low end, and the end of the slope (5) away from the feeding port (4) is the high end.

5. The feeding device for a rotary drum dryer according to claim 4, characterized in that: The lower part of the annular plate (31) is fixed with a limiting rod (6), and the bottom end of the limiting rod (6) passes through the bottom of the upper delivery cylinder (22) and extends to the outside of the lower delivery cylinder (21).

6. The feeding device for a rotary drum dryer according to claim 5, characterized in that: A compression spring (7) is fitted on the limiting rod (6). The top and bottom of the compression spring (7) are respectively attached to the first pressure block (8) and the second pressure block (9). The first pressure block (8) is fixed on the outer side wall of the annular plate (31), and the second pressure block (9) is fixed on the inner side wall of the upper delivery cylinder (22).

7. The feeding device for a rotary drum dryer according to claim 6, characterized in that: The bottom end of the limiting rod (6) is threaded with a nut (10), and the nut (10) is located outside the lower delivery cylinder (21).

Images