Returned coal conveying system for ferrotitanium powder production

Abstract

The utility model discloses a returned coal conveying system for ferrotitanium powder production, relates to the technical field of pneumatic conveying equipment, and aims to solve the technical problems that the interior of a pneumatic conveying pipeline is easily blocked and the pulverized coal conveying efficiency is influenced when pulverized coal particles are conveyed in the pneumatic conveying pipeline at present. Comprising a conveying pipeline, a feeding mechanism and an anti-blocking mechanism, the feeding mechanism and the anti-blocking mechanism are arranged on the conveying pipeline, the feeding mechanism comprises a feeding pipe arranged on the conveying pipeline, the anti-blocking mechanism comprises a mounting ring rotationally arranged in the conveying pipeline, and guide vanes are mounted in the mounting ring; cleaning rods are symmetrically arranged at the tail ends of the guide vanes and make contact with the inner wall of the conveying pipeline. The spiral airflow scraping device has the advantages that spiral airflow can be formed in the pneumatic conveying pipeline and scrapes the inner wall of the pipeline, so that pulverized coal is prevented from being deposited and attached to the inner wall of the pipeline, disturbance of the airflow to the pulverized coal is enhanced, the pulverized coal is prevented from being agglomerated, and the conveying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic conveying equipment technology, and more specifically, to a coal return conveying system for the production of ferrotitanium powder. Background Technology

[0002] Titanium iron powder is a ferroalloy mainly composed of titanium and iron. It is chemically reactive and can form stable compounds with various elements. In steelmaking, it is a powerful deoxidizer, desulfurizer, and degassing agent, refining grains, fixing interstitial elements, and significantly improving steel strength. In powder metallurgy, surface coating, and electroplating, it also plays a crucial role due to its high hardness, wear resistance, and corrosion resistance.

[0003] In the fine screening of ferrotitanium powder, coal dust particles and impurities are screened out. Pneumatic conveying equipment is needed to transport the coal to the earlier coal processing stage. However, because coal dust is sticky and easily agglomerates into large particles, its flowability within the pneumatic conveying pipeline is reduced, easily causing blockages and affecting the efficiency of coal dust conveying. Therefore, we propose a return coal conveying system for ferrotitanium powder production. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a coal return conveying system for the production of ferrotitanium powder, so as to solve the technical problem that coal powder particles are easily blocked in the pneumatic conveying pipeline during current conveying, which affects the coal powder conveying efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a return coal conveying system for ferrotitanium powder production, including a conveying pipeline and a feeding mechanism and an anti-clogging mechanism installed on the conveying pipeline. A fan is installed at the beginning of the conveying pipeline. The feeding mechanism includes a feeding pipe installed on the conveying pipeline and connected to the conveying pipeline. The anti-clogging mechanism includes an installation ring rotatably installed inside the conveying pipeline. The inner circle of the installation ring is the same size as the inner diameter of the conveying pipeline. A guide vane is installed inside the installation ring. A cleaning rod is symmetrically arranged at the end of the guide vane. The cleaning rod contacts the inner wall of the conveying pipeline. A limit ring is provided at the end of the cleaning rod.

[0006] Preferably, a feed hopper is installed at the upper end of the feed pipe, a rotating shaft is rotatably installed inside the feed pipe, feed plates are arrayed on the rotating shaft, and a first motor is provided at the side end of the feed pipe, with the main shaft of the first motor connected to the axis of the rotating shaft.

[0007] Preferably, the conveying pipe has an annular groove, and the size of the mounting ring and the limiting ring is adapted to the size of the annular groove, with the mounting ring and the limiting ring respectively located within the annular groove.

[0008] Preferably, the inner wall of the annular groove is symmetrically provided with a first ball groove, and the side ends of the mounting ring and the limiting ring are symmetrically provided with a second ball groove. The first ball groove and the second ball groove are connected to form an annular cavity, and metal balls are provided in the annular cavity.

[0009] Preferably, the upper end of the conveying pipe has an opening that communicates with an annular groove. A sealing box communicating with the opening is installed at the upper end of the conveying pipe. A drive gear is rotatably installed inside the sealing box. A second motor that drives the drive gear is provided at the side end of the sealing box. The outer surface of the mounting ring is provided with meshing teeth. The lower end of the drive gear extends from the opening into the annular groove and meshes with the meshing teeth.

[0010] Preferably, the guide vane is spirally arranged along its long axis, the guide vane is a short-distance spiral, and the guide vane and the conveying pipe form two spirally arranged air channels. The cleaning rod is spirally arranged along its long axis, and the spiral degree of the cleaning rod is one-third of the complete spiral.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model designs a guide vane structure. The spiral arrangement of the guide vanes forms two airflow channels, which can generate two spiral airflows. The short-distance spiral arrangement of the guide vanes can prevent large air resistance. The rotation of the guide vanes can enhance the spiral airflow speed, causing the coal powder to move in a spiral shape in the pipeline, reducing coal powder deposition, improving conveying efficiency, and enhancing the disturbance of coal powder, preventing coal powder agglomeration. This solves the problem that coal powder particles are prone to blockage in pneumatic conveying pipelines, which affects the coal powder conveying efficiency.

[0013] 2. This utility model also features a cleaning rod structure. The cleaning rod can move with the rotation of the mounting ring. The cleaning rod can scrape off the coal powder adhering to the inner wall of the pipe. Its spiral shape can increase the cleaning area, allowing the coal powder to enter the flowing airflow and flow with it. This can prevent the coal powder from accumulating on the pipe wall and further reduce the risk of blockage in the pneumatic conveying pipeline.

[0014] 3. This utility model also features a structural design where the mounting ring engages with an annular groove via metal balls. When the mounting ring rotates, the balls move within the annular groove, thereby reducing friction during rotation and making the rotation smoother, which is beneficial for energy saving in the drive equipment. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the anti-clogging mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the pipe according to this utility model;

[0019] Figure 5 This is a front view structural diagram of the anti-clogging mechanism of this utility model;

[0020] Figure 6 This is a schematic diagram of the mounting ring structure of this utility model.

[0021] The following are the labels in the diagram: 101, conveying pipe; 102, fan; 103, annular groove; 104, first ball groove; 105, opening; 200, feeding mechanism; 201, feeding pipe; 202, feeding hopper; 203, feeding plate; 204, first motor; 300, anti-clogging mechanism; 301, mounting ring; 302, guide vane; 303, cleaning rod; 304, sealing box; 305, second motor; 306, drive gear; 307, second ball groove; 308, metal ball; 309, meshing tooth; 310, limit ring. Detailed Implementation

[0022] like Figures 1 to 6 As shown, this utility model relates to a return coal conveying system for the production of ferrotitanium powder, including a conveying pipe 101 and a feeding mechanism 200 and an anti-blocking mechanism 300 installed on the conveying pipe 101. A fan 102 is installed at the beginning of the conveying pipe 101. The feeding mechanism 200 includes a feeding pipe 201 installed on the conveying pipe 101 and connected to the conveying pipe 101. The anti-blocking mechanism 300 includes an installation ring 301 rotatably installed inside the conveying pipe 101. The inner circle of the installation ring 301 is the same size as the inner diameter of the conveying pipe 101. A guide vane 302 is installed inside the installation ring 301. A cleaning rod 303 is symmetrically arranged at the end of the guide vane 302. The cleaning rod 303 contacts the inner wall of the conveying pipe 101. A limit ring 310 is provided at the end of the cleaning rod 303. This invention creates a spiral airflow within the pneumatic conveying pipeline, which scrapes the inner wall of the pipeline, thereby preventing coal dust from depositing and adhering to the inner wall of the pipeline. This enhances the disturbance of the coal dust by the airflow, prevents coal dust agglomeration, and improves the conveying efficiency.

[0023] Specifically, a feed hopper 202 is installed at the upper end of the feed pipe 201. A rotating shaft is rotatably installed inside the feed pipe 201, and feed plates 203 are arrayed on the rotating shaft. A first motor 204 is installed at the side end of the feed pipe 201, and the main shaft of the first motor 204 is connected to the axis of the rotating shaft. When the first motor 204 is turned on, its main shaft drives the rotating shaft to rotate, and the feed plates 203 on the rotating shaft rotate accordingly. Coal powder enters the feed pipe 201 from the feed hopper 202. During the rotation of the feed plates 203, coal powder is intermittently pushed into the conveying pipe 101, which can control the amount and speed of coal powder entering the conveying pipe 101 and prevent excessive feeding from causing pipe blockage.

[0024] Furthermore, an annular groove 103 is formed inside the conveying pipe 101. The size of the mounting ring 301 and the limiting ring 310 is adapted to the size of the annular groove 103, and the mounting ring 301 and the limiting ring 310 are respectively located inside the annular groove 103. The size adaptation of the mounting ring 301, the limiting ring 310 and the annular groove 103 allows the mounting ring 301 and the limiting ring 310 to block the annular groove 103, preventing airflow from entering through the gap between them.

[0025] It is worth noting that the inner wall of the annular groove 103 is symmetrically provided with first ball grooves 104, and the sides of the mounting ring 301 and the limiting ring 310 are symmetrically provided with second ball grooves 307. The first ball grooves 104 and the second ball grooves 307 are connected to form an annular cavity, and metal balls 308 are disposed in the annular cavity. The mounting ring 301 and the limiting ring 310 cooperate with the annular groove 103 through the metal balls 308. When the mounting ring 301 and the limiting ring 310 rotate, the balls will move in the annular cavity, thereby reducing the friction when the mounting ring 301 and the limiting ring 310 rotate, making the rotation of the mounting ring 301 smoother and contributing to energy saving of the drive equipment.

[0026] It is worth noting that the upper end of the conveying pipe 101 has an opening 105, which communicates with the annular groove 103. A sealing box 304 communicating with the opening 105 is installed at the upper end of the conveying pipe 101. A drive gear 306 is rotatably mounted inside the sealing box 304. A second motor 305 driving the drive gear 306 is provided at the side end of the sealing box 304. The outer surface of the mounting ring 301 is provided with meshing teeth 309. The lower end of the drive gear 306 extends from the opening 105 into the annular groove 103 and meshes with the meshing teeth 309. The second motor 305 drives the drive gear 306 to rotate, and the drive gear 306 meshes with the meshing teeth 309 on the outer surface of the mounting ring 301, so that the drive gear 306 can drive the mounting ring 301 to rotate within the annular groove 103.

[0027] It is worth noting that the guide vane 302 is spirally arranged along its long axis. The guide vane 302 is a short-distance spiral. The guide vane 302 and the conveying pipe 101 form two spirally arranged air channels. The cleaning rod 303 is spirally arranged along its long axis. The spiral degree of the cleaning rod 303 is one-third of that of a complete spiral. The spiral arrangement of the guide vanes 302 forms two airflow channels, which can make the airflow into two spiral airflows. The short-distance spiral arrangement of the guide vanes 302 can prevent large air resistance. The rotation of the guide vanes 302 can enhance the spiral airflow speed, causing the coal powder to move in a spiral shape in the pipeline. This can reduce coal powder deposition, enhance the disturbance of coal powder, prevent coal powder agglomeration, and improve conveying efficiency. The cleaning rod 303 can move with the rotation of the mounting ring 301. The cleaning rod 303 can scrape off the coal powder adhering to the inner wall of the pipeline. Its spiral arrangement can increase the cleaning area, allowing the coal powder to enter the flowing airflow and flow with it. This can prevent coal powder from accumulating on the pipe wall and further reduce the risk of blockage in the pneumatic conveying pipeline.

[0028] Working Principle: This embodiment provides a coal return conveying system for ferrotitanium powder production. The anti-clogging mechanism 300 is set according to the length of the pipeline. During use, the blower 102 is started, blowing airflow into the conveying pipeline 101. The first motor 204 is turned on, and its main shaft drives the rotating shaft to rotate. The feed plate 203 on the rotating shaft rotates accordingly. Coal powder enters the feed pipe 201 from the feed hopper 202. During the rotation of the feed plate 203, coal powder is intermittently pushed into the conveying pipeline 101, which can control the amount and speed of coal powder entering the conveying pipeline 101. After the coal powder enters the conveying pipeline 101, the airflow of the blower 102 pushes the coal powder to be suspended and conveyed in the conveying pipeline 101. At the same time, the second motor 305 drives the drive gear 306 to rotate. The drive gear 306 meshes with the meshing teeth 309 on the outer surface of the mounting ring 301, driving the mounting ring 301 to rotate in the annular groove 103. When the mounting ring 301 rotates, the spiral guide vanes 302 installed on it rotate accordingly, and the airflow... The spiral airflow is formed when the air enters and exits the spiral air channel. At the same time, the rotation of the guide vane 302 increases the speed of the spiral airflow. The spiral airflow promotes the spiral movement of coal powder in the pipeline, reducing coal powder deposition and improving conveying efficiency. On the other hand, it enhances the disturbance of coal powder and prevents coal powder agglomeration. When the mounting ring 301 rotates, the spiral cleaning rod 303 rotates with it. The cleaning rod 303 is always in contact with the inner wall of the conveying pipeline 101. During the rotation, it can scrape off the coal powder attached to the inner wall of the pipeline. The spiral design can increase the contact area. When the coal powder is scraped to the upper part of the pipeline, it can fall and flow with the air, avoiding coal powder accumulation on the pipe wall and further reducing the risk of blockage. The setting of the limit ring 310 can ensure the stability of the movement of the cleaning rod 303. In addition, the setting of the metal ball 308 can reduce the friction when the mounting ring 301 rotates, making the mounting ring 301 rotate more smoothly and ensuring the stable operation of the anti-blockage mechanism 300.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A coal return conveying system for titanium-iron powder production, characterized in that, The utility model provides an anti -blocking mechanism and feeding mechanism of feeding pipe, the utility model discloses a feeding pipe (101) and the feeding pipe (101) on setting feeding mechanism (200) and anti -blocking mechanism (300) are provided with fan (102) in the feeding pipe (101) beginning, feeding mechanism (200) includes the feeding pipe (201) of setting on feeding pipe (101), and the feeding pipe (201) is communicated with feeding pipe (101), and anti -blocking mechanism (300) includes the mounting ring (301) of rotation setting in feeding pipe (101), and the mounting ring (301) inner circle size is consistent with the inner diameter of feeding pipe (101), and the mounting ring (301) is installed with the guide vane (302) in, and the end of guide vane (302) is provided with the cleaning rod (303) symmetrically, and the cleaning rod (303) is contacted with the inner wall of feeding pipe (101), and the end of cleaning rod (303) is provided with the limit ring (310).

2. A coal returning and conveying system for titanium-iron powder production according to claim 1, characterized in that, The upper end of the feeding pipe (201) is provided with a feeding hopper (202), a rotating shaft is rotatably installed in the feeding pipe (201), a plurality of feeding plates (203) are arrayed on the rotating shaft, and a first motor (204) is arranged at the side end of the feeding pipe (201). The main shaft of the first motor (204) is connected with the shaft center of the rotating shaft.

3. The coal returning and conveying system for producing titanium-iron powder according to claim 2, characterized in that, An annular groove (103) is formed in the feeding pipe (101), and the mounting ring (301) and the limit ring (310) are adapted to the size of the annular groove (103) and are located in the annular groove (103) respectively.

4. The coal returning and conveying system for producing titanium-iron powder according to claim 3, characterized in that, The inner wall of the annular groove (103) is symmetrically provided with a first ball groove (104), and the side end of the mounting ring (301) and the limit ring (310) is symmetrically provided with a second ball groove (307). The first ball groove (104) and the second ball groove (307) are connected to form an annular cavity, and a metal ball (308) is arranged in the annular cavity.

5. The coal returning and conveying system for producing titanium-iron powder according to claim 4, characterized in that, An opening (105) is formed at the upper end of the feeding pipe (101), the opening (105) is communicated with the annular groove (103), a sealing box (304) is arranged at the upper end of the feeding pipe (101) and is communicated with the opening (105), a driving gear (306) is rotatably installed in the sealing box (304), a second motor (305) is arranged at the side end of the sealing box (304) and drives the driving gear (306), a meshing tooth (309) is arranged on the outer surface of the mounting ring (301), and the lower end of the driving gear (306) extends into the annular groove (103) from the opening (105) and is connected with the meshing tooth (309) in meshing.

6. The coal returning and conveying system for producing titanium-iron powder according to claim 5, characterized in that, The guide vane (302) is spirally arranged along the long axis direction, the guide vane (302) is a short distance spiral, two air flow channels are formed between the guide vane (302) and the feeding pipe (101) and are spirally arranged, the cleaning rod (303) is spirally arranged along the long axis direction, and the degree of the spiral of the cleaning rod (303) is one third of a complete spiral.

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