Feeding device of material cake elevator

Abstract

The utility model belongs to the technical field of cement production devices, and relates to a material cake hoister feeding device which comprises a hoister, a roller press and a hoister feeding pipe, the top end of the hoister feeding pipe is connected to a discharging port of the roller press, a telescopic conical corrugated pipe is arranged at the bottom end of the hoister feeding pipe, and an annular connecting plate is arranged at the bottom of the telescopic conical corrugated pipe. A hopper cover is arranged at the top end of a feeding hopper of the elevator, a feeding port matched with the annular connecting plate is formed in the hopper cover, a first limiting mechanism used for fixing the annular connecting plate is arranged on the hopper cover, and a second limiting mechanism used for fixing the annular connecting plate is arranged on the outer wall of the bottom end of a feeding pipe of the elevator. A rotating shaft is rotationally connected into the pipe section, close to the end of the telescopic conical corrugated pipe, of the elevator feeding pipe, and symmetrically-distributed material guiding plates are installed on the rotating shaft. The device is simple in structure and convenient to overhaul and maintain, the feeding stability and reliability of the elevator are improved, and reentrainment of dust in the material cake transferring process is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cement production devices, and more specifically relates to a feeding device for a cake elevator. Background Art

[0002] The cake elevator is an important auxiliary equipment in the cement industry. It is used to feed the cake at the outlet of the roller press into the breaking and classifying machine. Since the roller press is affected by the feeding stability of the material and the changes in the material composition, its output is not stable. This will cause the amount of material entering the cake elevator to be large and sometimes small, and sometimes material collapse will occur. When material collapse occurs, the cake elevator will cause the current overload and stop, causing the cake elevator to be crushed, thereby affecting the safe and stable operation of the system.

[0003] The patent document with the authorization number CN219525339U discloses a feeding device for a cake elevator, which drives the rotating shaft to rotate through a driving device, drives the guide plate to stably transfer the material in the material hopper down pipe to the conveyor belt, and then transfers it to the feeding hopper of the cake elevator through the conveyor belt. Although the device can control the feeding amount of the cake elevator, it can prevent the elevator from overloading or blocking due to excessive feeding to a certain extent. However, the device structure of this scheme is complex, which increases the investment, operation and maintenance costs of the cement production system. At the same time, dust points are increased during the material transfer process, which urgently needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a feeding device for a cake elevator, including an elevator, a roller press and an elevator feed pipe, the top end of the elevator feed pipe is connected to the discharge port of the roller press, and the bottom end of the elevator feed pipe is provided with a telescopic conical bellows, the bottom of the telescopic conical bellows is provided with an annular connecting plate, the top of the feed hopper of the elevator is provided with a hopper cover, the hopper cover is provided with a feeding port matching the annular connecting plate, and the hopper cover is provided with a first limiting mechanism for fixing the annular connecting plate, and a second limiting mechanism for fixing the annular connecting plate is provided on the outer wall of the bottom end of the elevator feed pipe, a rotating shaft is rotatably connected to the pipe section of the elevator feed pipe close to the end of the telescopic conical bellows, and symmetrically distributed material guide plates are installed on the rotating shaft, one end of the rotating shaft extends out of the pipe wall of the elevator feed pipe and is transmission-connected to a servo motor.

[0006] Preferably, the first limiting mechanism includes two limiting blocks correspondingly arranged at the top of the hopper cover and a locking bolt threaded through one of the limiting blocks, the gap between the two limiting blocks is matched with the width of the annular connecting plate, and the annular connecting plate can be pressed tightly between the two limiting blocks by tightening the locking bolt. This arrangement can firmly connect the annular connecting plate to the hopper cover, and avoid the situation in which the annular connecting plate slides due to vibration during the feeding process, thereby preventing leakage or dust from occurring.

[0007] Preferably, a feed valve is provided on the feed pipe of the elevator. The feed valve is arranged above the rotating shaft and does not interfere with the movement of the guide plate. Closing the feed valve can facilitate regular cleaning and maintenance of the surface of the guide plate.

[0008] Preferably, a sealing gasket is provided at the bottom of the annular connecting plate, which is beneficial to ensure the sealing during material dropping and reduce dust.

[0009] Preferably, the annular connecting plate is provided with a first connecting block along the top end on both sides of the front and rear sides, and the second limiting mechanism includes a second connecting block correspondingly arranged on the front and rear side walls of the bottom end of the elevator feed pipe, the second connecting block is arranged in a one-to-one correspondence with the first connecting block, a connecting bolt is threaded through the second connecting block, and a threaded hole matching the connecting bolt is provided on the first connecting block. When the upper end surface of the annular connecting plate is lifted to be flush with the bottom end of the elevator feed pipe, the first connecting block is flush with the second connection, and the connecting bolt can be threadedly connected with the threaded hole on the first connecting block. Through the second limiting mechanism, the annular connecting plate can be quickly fixed to the elevator feed pipe when checking the elevator feed hopper or guide plate, which is convenient for inspection and maintenance.

[0010] Preferably, a hanging ear is provided at the top end of the first connecting block, and a pulling hole is provided on the hanging ear, so as to facilitate pulling the annular connecting plate upwards when inspecting the feed hopper or guide plate of the elevator.

[0011] Preferably, the bends of the elevator feed pipe are connected by smooth transition pipe sections to prevent material from being blocked at the bends, thereby ensuring the stability of the feed.

[0012] The present invention also includes other devices or components that enable it to be used normally, all of which are conventional technical means in the field; in addition, the devices or components not limited in the present invention all adopt conventional means in the field, such as servo motors, rotating shafts, guide plates, elevators, roller presses and conical bellows, etc., and technicians in this field can choose their models and installation methods according to actual usage requirements, and clearly understand how to install and control them specifically, which will not be described in detail here.

[0013] The working principle of the utility model is as follows: the application sets a retractable conical bellows at the bottom end of the feed pipe of the elevator, and the retractable conical bellows and the annular connecting plate are detachably connected to the feed hopper of the elevator, so as to facilitate the closed transportation of the material cake and effectively suppress dust. By setting a rotating shaft and a guide plate at the bottom end of the retractable conical bellows, the rotation speed of the rotating shaft and the guide plate can be changed by adjusting the power of the servo motor, and then the feed amount can be adjusted, which can effectively prevent the roller press from suddenly collapsing and causing the elevator to be crushed to death. At the same time, the setting of the first limiting mechanism is conducive to ensuring the reliability of the connection between the annular connecting plate and the feed hopper of the elevator during normal operation of the device. The setting of the second limiting mechanism is convenient for quickly fixing the annular connecting plate to the bottom end of the feed hopper of the elevator when the machine is shut down for maintenance, so as to facilitate the cleaning or maintenance of the inner wall of the feed hopper and the surface of the guide plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the device has a simple structure, is easy to inspect and maintain, and improves the stability and reliability of the elevator feeding. It is also beneficial to reduce secondary dust during the cake transfer process and improve the operating environment of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model in the running process in the embodiment;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure enlargement at point A;

[0018] Figure 3 It is a top view schematic diagram of the connection structure between the hopper cover and the annular connecting plate in the embodiment;

[0019] Figure 4 It is a schematic diagram of the overall structure of the utility model during the maintenance process in the embodiment. DETAILED DESCRIPTION

[0020] 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.

[0021] Example

[0022] like Figures 1 to 4As shown, this embodiment provides a feeding device for a cake elevator, comprising an elevator 1, a roller press 2 and an elevator feed pipe 3, the top end of the elevator feed pipe is connected to the discharge port of the roller press, and the bottom end of the elevator feed pipe is provided with a telescopic conical bellows 4, the bottom of the telescopic conical bellows is provided with an annular connecting plate 5, the top of the feed hopper of the elevator is provided with a hopper cover 6, the hopper cover is provided with a feed port 7 matching the annular connecting plate, and the hopper cover is provided with a first limiting mechanism for fixing the annular connecting plate, the outer wall of the bottom end of the elevator feed pipe is provided with a second limiting mechanism for fixing the annular connecting plate, a rotating shaft 8 is rotatably connected to the inner section of the elevator feed pipe close to the end of the telescopic conical bellows, and symmetrically distributed material guide plates 9 are installed on the rotating shaft, one end of the rotating shaft extends out of the pipe wall of the elevator feed pipe and is transmission-connected to a servo motor (not shown in the figure).

[0023] Specifically, the first limiting mechanism includes two limiting blocks 10 correspondingly arranged at the top of the hopper cover and a locking bolt 11 threadedly penetrating one of the limiting blocks. The gap between the two limiting blocks is matched with the width of the annular connecting plate. By tightening the locking bolt, the annular connecting plate can be pressed tightly between the two limiting blocks. This setting can firmly connect the annular connecting plate to the hopper cover to avoid the annular connecting plate sliding due to vibration during the feeding process, thereby preventing leakage or dust from occurring.

[0024] More specifically, a feed valve 12 is provided on the feed pipe of the elevator. The feed valve is provided above the rotating shaft and does not interfere with the movement of the guide plate. Closing the feed valve can facilitate regular cleaning and maintenance of the surface of the guide plate. A sealing gasket 13 is provided at the bottom of the annular connecting plate, which is conducive to ensuring the sealing during material dropping and reducing dust. The bends of the feed pipe of the elevator are all connected with smooth transition pipe sections to prevent material clogging at the bends and ensure the stability of the feed.

[0025] In this embodiment, the annular connecting plate is provided with a first connecting block 14 corresponding to the top along the front and rear sides, and the second limiting mechanism includes a second connecting block 15 corresponding to the front and rear side walls of the bottom end of the elevator feed pipe. The second connecting block is provided in a one-to-one correspondence with the first connecting block, and a connecting bolt 16 is threaded through the second connecting block. The first connecting block is provided with a threaded hole matching the connecting bolt. When the upper end surface of the annular connecting plate is lifted to be flush with the bottom end of the elevator feed pipe, the first connecting block is flush with the second connection, and the connecting bolt can be threadedly connected with the threaded hole on the first connecting block. Through the second limiting mechanism, the annular connecting plate can be quickly fixed to the elevator feed pipe when checking the elevator feed hopper or guide plate, which is convenient for inspection and maintenance. A hanging ear 17 is provided at the top of the first connecting block, and a pulling hole is provided on the hanging ear, which is convenient for pulling the annular connecting plate upward when checking the elevator feed hopper or guide plate.

[0026] The working principle of the utility model is as follows: the application sets a retractable conical bellows at the bottom end of the feed pipe of the elevator, and the retractable conical bellows and the annular connecting plate are detachably connected to the feed hopper of the elevator, so as to facilitate the closed transportation of the material cake and effectively suppress dust. By setting a rotating shaft and a guide plate at the bottom end of the retractable conical bellows, the rotation speed of the rotating shaft and the guide plate can be changed by adjusting the power of the servo motor, and then the feed amount can be adjusted, which can effectively prevent the roller press from suddenly collapsing and causing the elevator to be crushed to death. At the same time, the setting of the first limiting mechanism is conducive to ensuring the reliability of the connection between the annular connecting plate and the feed hopper of the elevator during normal operation of the device. The setting of the second limiting mechanism is convenient for quickly fixing the annular connecting plate to the bottom end of the feed hopper of the elevator when the machine is shut down for maintenance, so as to facilitate the cleaning or maintenance of the inner wall of the feed hopper and the surface of the guide plate.

[0027] 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 variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A feeding device for a cake elevator, comprising an elevator and a roller press, characterized in that: It also includes a hoist feed pipe, the top of which is connected to the discharge port of the roller press, and the bottom end of the hoist feed pipe is provided with a retractable conical bellows, the bottom of the retractable conical bellows is provided with an annular connecting plate, the top of the feed hopper of the hoist is provided with a hopper cover, the hopper cover is provided with a feed port matching the annular connecting plate, and the hopper cover is provided with a first limiting mechanism for fixing the annular connecting plate, a second limiting mechanism for fixing the annular connecting plate is provided on the outer wall of the bottom end of the hoist feed pipe, a rotating shaft is rotatably connected to the pipe section of the hoist feed pipe close to the end of the retractable conical bellows, symmetrically distributed material guide plates are installed on the rotating shaft, one end of the rotating shaft extends out of the pipe wall of the hoist feed pipe and is transmission-connected to a servo motor.

2. The feeding device for the cake elevator according to claim 1 is characterized in that: The first limiting mechanism includes two limiting blocks correspondingly arranged at the top of the hopper cover and a locking bolt threaded through one of the limiting blocks. The gap between the two limiting blocks is matched with the width of the annular connecting plate. By tightening the locking bolt, the annular connecting plate can be tightened between the two limiting blocks.

3. The feeding device for the cake elevator according to claim 1 is characterized in that: The feed pipe of the elevator is provided with a feed valve, which is arranged above the rotating shaft and does not interfere with the movement of the guide plate.

4. The feeding device for the cake elevator according to claim 1 is characterized in that: A sealing gasket is provided at the bottom of the annular connecting plate.

5. The feeding device for the cake elevator according to claim 1 is characterized in that: The annular connecting plate has a first connecting block correspondingly arranged along the top end on both sides thereof; the second limiting mechanism includes a second connecting block correspondingly arranged on the front and rear side walls at the bottom end of the elevator feed pipe; the second connecting block is arranged in a one-to-one correspondence with the first connecting block; a connecting bolt is threadedly passed through the second connecting block; a threaded hole matching the connecting bolt is arranged on the first connecting block; when the upper end surface of the annular connecting plate is lifted to be flush with the bottom end of the elevator feed pipe, the first connecting block is flush with the second connection, and the connecting bolt can be threadedly connected to the threaded hole on the first connecting block.

6. The feeding device for the cake elevator according to claim 5, characterized in that: A hanging ear is provided at the top of the first connecting block, and a pulling hole is provided on the hanging ear.

7. The feeding device for a cake elevator according to any one of claims 1 to 6, characterized in that: The bending parts of the elevator feed pipe are all connected by smooth transition pipe sections.

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