Anti-blocking double-casing pipe bin pump dust removal and ash pneumatic conveying equipment

Abstract

The utility model discloses a kind of anti-blocking double casing pipe bin pump dust ash pneumatic conveying equipment, including conveying pipe bin, cleaning assembly, air supplement pipeline, conveying pipe bin one end is connected with the proportioning bin for storing dust ash by connecting pipe, cleaning assembly is located in conveying pipe bin, cleaning assembly includes shaft, mounting bracket, shaft is rotatably connected in conveying pipe bin by bearing, mounting bracket is detachably installed with cleaning plate, air supplement pipeline is located in conveying pipe bin one end, for supplementing compressed air to conveying pipe bin to avoid dust ash deposition block, under the driving of servo motor, shaft and mounting bracket, dust ash that can promptly clean conveying pipe bin inner wall adsorption accumulation, prevent dust ash accumulation to cause pipe inner diameter to be small, conveying resistance increases, greatly reduce the risk of conveying pipeline blockage, ensure the continuity and stability of production, without frequently due to pipeline blockage and stop equipment operation to clean.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas treatment technology, specifically relating to an anti-clogging double-tube silo pump dust removal pneumatic conveying equipment. Background Technology

[0002] The RKEF production line is a pyrometallurgical production line employing a rotary kiln-submerged arc furnace process. It is primarily used for smelting laterite nickel ore to produce nickel-iron alloys. The flue gas from the electric furnace and rotary kiln of each production line is uniformly mixed in a mixing chamber to meet the temperature requirements of the denitrification system. The gas first undergoes preliminary dust removal in a cyclone dust collector, followed by denitrification treatment in the denitrification system. After treatment, the flue gas enters a drying kiln for material drying. Following drying, the flue gas enters an electrostatic precipitator and then a fan before entering the desulfurization system, ensuring that dust emissions ultimately reach ≤10mg / Nm³. 3 Since dust can be used as raw material for smelting, a large amount of dust needs to be transported to the batching silo via pneumatic conveying equipment.

[0003] Existing pneumatic conveying equipment uses a silo pump to deliver dusty materials into a conveying pipe, utilizing the kinetic energy of compressed air to achieve long-distance material transport. This effectively reduces manual intervention, improves production efficiency, and lowers labor intensity. However, in actual operation, due to the adsorption and stickiness of dust particles, they easily adhere to the inner wall of the conveying pipe during transport. Over time, this accumulated dust gradually increases, leading to a reduction in the inner diameter of the conveying pipe and an increase in conveying resistance. This not only reduces conveying efficiency and increases energy consumption but may also cause blockages in the conveying pipeline, seriously affecting the continuity and stability of production. The common solution is manual cleaning, which requires periodically stopping the equipment and having workers enter the conveying pipe for cleaning. This method is not only inefficient and labor-intensive but also poses significant safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a clog-resistant double-tube silo pump dust removal pneumatic conveying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clog-resistant double-tube silo pump dust removal pneumatic conveying device, comprising:

[0006] A conveying silo, one end of which is connected to a batching silo for storing dust removal ash via a connecting pipe;

[0007] A cleaning component is installed inside the conveying pipe compartment and is used to clean the dust and ash adsorbed and accumulated on the inner wall of the conveying pipe compartment. The cleaning component includes a rotating shaft and a mounting frame. The rotating shaft is rotatably connected to the conveying pipe compartment through a bearing. A cleaning plate is detachably installed inside the mounting frame. The rotating shaft rotates and drives the mounting frame to rotate, so that the rotating mounting frame drives the cleaning plate to brush the inner wall of the conveying pipe compartment.

[0008] An air replenishment pipe is located at one end of the delivery pipe compartment and is used to replenish compressed air into the delivery pipe compartment to prevent dust and ash from accumulating and clogging it.

[0009] Preferably, one end of the conveying tube is connected to a sealing cover via a sealing flange, and a servo motor is provided on the sealing cover, with the output shaft of the servo motor rotating through the sealing cover and connected to the rotating shaft.

[0010] Preferably, the mounting bracket is provided in several groups, and each group of mounting brackets is connected to the rotating shaft via a connecting rod.

[0011] Preferably, the mounting bracket is provided with a sliding slot, and the cleaning plate is connected to a sliding plug, which slides into the sliding slot.

[0012] Preferably, the sliding slot has limiting grooves on both sides, and the sliding block has limiting strips connected to both ends, with the limiting strips slidingly inserted into the limiting grooves.

[0013] Preferably, the bottom end of the conveying pipe compartment is connected to two sets of sleeves, and the bottom ends of the two sets of sleeves are connected to a straight pipe.

[0014] Preferably, one end of the straight pipe is connected to an air inlet pipe, and the top of the air inlet pipe is connected to a feed pipe for feeding dust.

[0015] Preferably, the bottom of the ingredient hopper is connected to a discharge pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) Driven by the servo motor, rotating shaft and mounting bracket, the cleaning plate can clean the dust adsorbed and accumulated on the inner wall of the conveying pipe in a timely manner, preventing the accumulation of dust from causing the inner diameter of the pipe to become smaller and the conveying resistance to increase. This greatly reduces the risk of blockage in the conveying pipe, ensures the continuity and stability of production, and eliminates the need to frequently stop the equipment to clean due to pipe blockage.

[0018] (2) The cleaning plate and the mounting bracket are connected by sliding blocks and sliding slots, and are detachable with limit strips and limit grooves for limiting. When the cleaning plate is worn or needs to be replaced, it can be quickly and conveniently disassembled and installed, which facilitates the daily maintenance and upkeep of the equipment. In addition, when a fault occurs, it is easy for staff to quickly locate and troubleshoot the problem, which improves the efficiency of equipment maintenance.

[0019] (3) The double-tube structure at the bottom of the conveying pipe can flexibly adjust the airflow distribution during the conveying process, effectively intervene in the possible local airflow obstruction or dust ash deposition problems, enhance the stability of the entire conveying process, further improve the equipment's ability to cope with complex conveying conditions, and ensure that the dust ash can be safely and efficiently conveyed to the designated location.

[0020] (4) If the supply of compressed air is insufficient during the conveying process, dust will easily accumulate in the pipeline, eventually causing blockage and affecting the production process. The air replenishment pipeline can replenish compressed air in real time and adjust the air pressure and airflow distribution in the pipeline. Even when there is a local trend of dust deposition, the newly added compressed air can quickly enhance the airflow intensity in the conveying pipe chamber, and re-drive the dust that is about to be deposited, so as to restore the normal conveying state. Through this active blockage prevention mechanism, the probability of conveying pipeline blockage is greatly reduced, the number of times the machine is stopped for cleaning due to pipeline blockage is reduced, and the continuity of production is guaranteed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the conveying pipe compartment of this utility model;

[0023] Figure 3 This is a side view of the conveying pipe compartment of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the mounting bracket and cleaning plate of this utility model;

[0025] Figure 5 This is a diagram showing the airflow direction in the intake pipe and straight pipe of this utility model.

[0026] In the diagram: 1. Conveying pipe; 2. Connecting pipe; 3. Feeding hopper; 4. Rotating shaft; 5. Mounting bracket; 6. Cleaning plate; 7. Air supply pipe; 8. Sealing flange; 9. Sealing cover; 10. Servo motor; 11. Connecting rod; 12. Sliding slot; 13. Sliding block; 14. Limiting groove; 15. Limiting strip; 16. Sleeve; 17. Straight pipe; 18. Air inlet pipe; 19. Feeding pipe; 20. Discharge pipe. Detailed Implementation

[0027] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] This utility model provides, for example Figure 1-5 The anti-clogging double-tube silo pump dust removal pneumatic conveying equipment shown includes:

[0030] The conveying pipe silo 1 has one end connected to a batching silo 3 for storing dust removal ash via a connecting pipe 2.

[0031] A cleaning component is provided inside the conveying tube chamber 1 and is used to clean the dust and ash adsorbed and accumulated on the inner wall of the conveying tube chamber 1. The cleaning component includes a rotating shaft 4 and a mounting frame 5. The rotating shaft 4 is rotatably connected to the conveying tube chamber 1 through a bearing. A cleaning plate 6 is detachably installed inside the mounting frame 5. The rotating shaft 4 rotates and drives the mounting frame 5 to rotate, so that the rotating mounting frame 5 drives the cleaning plate 6 to brush the inner wall of the conveying tube chamber 1.

[0032] Air supply pipe 7 is located at one end of the conveying pipe chamber 1 and is used to supply compressed air into the conveying pipe chamber 1 to prevent dust and ash from accumulating and clogging it.

[0033] One end of the conveying tube 1 is connected to a sealing cover 9 via a sealing flange 8. A servo motor 10 is provided on the sealing cover 9, and the output shaft of the servo motor 10 rotates through the sealing cover 9 and is connected to the rotating shaft 4.

[0034] The mounting frame 5 is provided in several groups, and each group of mounting frames 5 is connected to the rotating shaft 4 through a connecting rod 11.

[0035] The mounting bracket 5 is provided with a sliding slot 12, and the cleaning plate 6 is connected to a sliding plug 13, which slides into the sliding slot 12. The sliding plug 13 connected to the cleaning plate 6 can slide precisely into the sliding slot 12. This sliding engagement provides a basis for the installation and removal of the cleaning plate 6.

[0036] The sliding slot 12 has limiting grooves 14 on both sides. The sliding block 13 is connected to limiting strips 15 at both ends and the limiting strips 15 slide into the limiting grooves 14. The cooperation between the limiting strips 15 and the limiting grooves 14 can effectively limit the movement of the cleaning plate 6 in the direction perpendicular to the sliding slot 12, ensuring that the cleaning plate 6 will not deviate or fall off during high-speed rotation. This ensures that the cleaning plate 6 always maintains a suitable contact angle and pressure with the inner wall of the conveying pipe 1, and completes the dust removal and cleaning work stably and efficiently. In addition, the brush of the cleaning plate 6 is a polyester brush. Polyester brushes also have excellent wear resistance. In high-intensity and high-frequency cleaning work, the bristles are not easy to break or deform. They have good chemical stability and are particularly suitable for cleaning dust.

[0037] The bottom end of the conveying pipe compartment 1 is connected to two sets of sleeves 16, and the bottom end of the two sets of sleeves 16 is connected to the straight pipe 17.

[0038] One end of the straight pipe 17 is connected to an air inlet pipe 18, and the top of the air inlet pipe 18 is connected to a feed pipe 19 for feeding dust. When compressed air is introduced into the straight pipe 17 from the air inlet pipe 18, the dust also enters from the feed pipe 19. The two can be fully mixed in the straight pipe 17 and enter the conveying chamber 1 through two sets of sleeves 16.

[0039] The bottom of the batching silo 3 is connected to a discharge pipe 20, and the dust stored in the batching silo 3 can be discharged through the discharge pipe 20 so that it can continue to be used as raw material for smelting.

[0040] This anti-clogging double-tube silo pump dust collector pneumatic conveying equipment, after entering the working state, the externally installed air compressor introduces the compressed air generated into the straight pipe 17 through the air inlet pipe 18. This compressed air forms a high-speed airflow in the pipe. At the same time, the treated dust enters from the feed pipe 19 through the externally installed pipe and mixes thoroughly with the high-speed airflow. With its strong kinetic energy, the compressed air pushes the dust collector through the two sets of sleeves 16 into the conveying silo 1, where it moves at high speed. Finally, the dust collector is conveyed to the batching silo 3 through the connecting pipe 2. During this process, the externally installed air compressor can continuously replenish the compressed air into the conveying silo 1 through the air replenishment pipe 7 to ensure that the airflow in the pipe remains stable and has sufficient conveying power. Through this continuous air replenishment mechanism, it can effectively prevent the dust collector from accumulating and clogging in the pipe due to insufficient power caused by insufficient compressed air.

[0041] In addition, two sets of sleeves 16 connected to the bottom end of the conveying pipe 1 are connected to the straight pipe 17, forming a double-sleeve structure. Through the coordinated operation of the two sets of sleeves 16 and the straight pipe 17, an interconnected airflow channel is formed, which makes the airflow entering the conveying pipe 1 evenly distributed in cross-section. This ensures that the dust can be subjected to airflow thrust of similar intensity, avoiding problems such as uneven speed and accumulation of dust in the pipe due to excessively strong or weak local airflow. This uniformly distributed airflow provides a strong guarantee for the stable conveying of dust in the conveying pipe 1, effectively improving the stability and conveying efficiency of the entire pneumatic conveying system.

[0042] When the conveying pipe chamber 1 needs to be cleaned during equipment operation, the servo motor 10 can be started by an external controller, and the output shaft of the conveying pipe chamber 1 starts to rotate, which in turn drives the rotating shaft 4 to rotate synchronously. The rotating shaft 4 is connected to the mounting frame 5 through the connecting rod 11. When the rotating shaft 4 rotates, it will drive the mounting frame 5 to rotate through the connecting rod 11. The mounting frame 5 is connected to the cleaning plate 6, so that the cleaning plate 6 brushes and cleans the inner wall of the conveying pipe chamber 1. Through the continuous brushing of the cleaning plate 6, the dust adsorbed and accumulated on the inner wall of the conveying pipe chamber 1 can be cleaned off in time, effectively preventing the dust from continuously accumulating on the pipe wall, thereby preventing the pipe inner diameter from decreasing and the conveying resistance from increasing. The cleaned dust can be mixed with the high-speed airflow and transported to the batching bin 3 for storage through the connecting pipe 2, thereby avoiding the waste of resources.

[0043] The cleaning plate 6 and the mounting bracket 5 are connected in a detachable manner, which facilitates the replacement of the cleaning plate. The cleaning plate 6 engages with the sliding slot 12 of the mounting bracket 5 via a sliding insert 13, and the limiting strips 15 at both ends of the sliding insert 13 are inserted into the limiting grooves 14, forming a stable and easy-to-disassemble connection structure. When the cleaning plate 6 wears out after long-term use or needs to be replaced, the operator first performs safety operations such as stopping the equipment and disconnecting the power, then opens the sealing cover 9, and then simply applies a pulling force parallel to the direction of the sliding slot 12 to the cleaning plate 6. Since the engagement between the limiting strips 15 and the limiting grooves 14 mainly restricts the movement of the cleaning plate 6 in the direction perpendicular to the slot, under the action of the parallel pulling force, the sliding insert 13 can slide smoothly within the sliding slot 12. This allows the limiting strip 15 to disengage from the limiting groove 14, thus removing the cleaning plate 6 from the mounting bracket 5. After disassembly, the sliding insert 13 of the new cleaning plate 6 is aligned with the sliding slot 12 of the mounting bracket 5, and then the cleaning plate 6 is pushed along the slot direction, causing the sliding insert 13 to gradually insert into the sliding slot 12. During this process, the limiting strips 15 at both ends of the sliding insert 13 will also automatically align and slide into the limiting groove 14 as the sliding insert 13 is inserted. When the limiting strips 15 are fully inserted into the limiting groove 14 and the cleaning plate 6 is installed in place, the cleaning plate 6 is securely installed on the mounting bracket 5, completing the replacement operation of the cleaning plate 6. Through this structural design based on the cooperation between the sliding insert 13 and the slot, the replacement process of the cleaning plate 6 is simple and quick, without the need for complicated tools or cumbersome operating steps.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clog-resistant double-tube silo pump dust removal pneumatic conveying device, characterized in that, include: The conveying pipe silo (1) is connected at one end to a batching silo (3) for storing dust removal ash via a connecting pipe (2); A cleaning component is provided inside the conveying pipe compartment (1) and is used to clean the dust adsorbed and accumulated on the inner wall of the conveying pipe compartment (1). The cleaning component includes a rotating shaft (4) and a mounting frame (5). The rotating shaft (4) is rotatably connected to the conveying pipe compartment (1) through a bearing. A cleaning plate (6) is detachably installed inside the mounting frame (5). The rotating shaft (4) rotates and drives the mounting frame (5) to rotate, so that the rotating mounting frame (5) drives the cleaning plate (6) to brush the inner wall of the conveying pipe compartment (1). Air replenishment pipe (7) is located at one end of the conveying pipe compartment (1) and is used to replenish compressed air into the conveying pipe compartment (1) to prevent dust and ash from accumulating and clogging it.

2. The anti-clogging double-tube silo pump dust removal pneumatic conveying equipment according to claim 1, characterized in that: One end of the conveying tube (1) is connected to a sealing cover (9) via a sealing flange (8). A servo motor (10) is provided on the sealing cover (9), and the output shaft of the servo motor (10) rotates through the sealing cover (9) and is connected to the rotating shaft (4).

3. The anti-clogging double-tube silo pump dust removal pneumatic conveying equipment according to claim 1, characterized in that: The mounting bracket (5) is provided in several groups, and all groups of mounting brackets (5) are connected to the rotating shaft (4) through connecting rods (11).

4. The anti-clogging double-tube silo pump dust removal pneumatic conveying equipment according to claim 1, characterized in that: The mounting bracket (5) is provided with a sliding slot (12), and the cleaning plate (6) is connected with a sliding plug (13) which slides into the sliding slot (12).

5. The anti-clogging double-tube silo pump dust removal pneumatic conveying equipment according to claim 4, characterized in that: The sliding slot (12) has limiting grooves (14) on both sides, and the sliding plug (13) has limiting strips (15) connected to both ends, and the limiting strips (15) slide into the limiting grooves (14).

6. The anti-clogging double-tube silo pump dust removal pneumatic conveying equipment according to claim 1, characterized in that: The bottom end of the conveying pipe compartment (1) is connected to two sets of sleeves (16), and the bottom end of the two sets of sleeves (16) is connected to the straight pipe (17).

7. The anti-clogging double-tube silo pump dust removal pneumatic conveying equipment according to claim 6, characterized in that: One end of the straight pipe (17) is connected to an air inlet pipe (18), and the top of the air inlet pipe (18) is connected to a feed pipe (19) for feeding dust.

8. The anti-clogging double-tube silo pump dust removal pneumatic conveying equipment according to claim 1, characterized in that: The bottom of the batching hopper (3) is connected to a discharge pipe (20).

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