Dustproof conveying device for powder raw materials in metallurgical industry

Abstract

The invention relates to the technical field of metallurgical equipment, in particular to a dustproof conveying device for powder raw materials in the metallurgical industry. The middle of the rear end of the top face of the tunnel type box is sleeved with the bottom end of the feeding shell. The material passing shell comprises a material collecting hopper connected to the bottom of the front end of the tunnel type box body, a connecting cylinder and a connecting shell connected between the connecting cylinder and the material collecting hopper; the bottom end of the vertical cylinder is in butt joint with the top end of the connecting cylinder, the front side, close to the top end, of the vertical cylinder is connected with a discharging pipe, a suction shell is connected to the position, higher than the top end of the discharging pipe, of the side wall of the vertical cylinder, and a filter screen plate is embedded in the position, corresponding to the suction shell, of the side wall of the vertical cylinder; the shaft rod is rotationally mounted at the axis of the vertical cylinder and the connecting cylinder; the spiral blade is fixed on the peripheral wall of the shaft rod; the lifting motor is used for driving the shaft rod to rotate; the air pipe is connected between the outer end of the suction shell and the air inlet end of the suction pump; the problems that in the metallurgical industry, when powder raw materials are transferred, efficiency is not high, and flying dust is prone to being generated are well solved.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgical equipment, and specifically relates to a dust-proof conveying device for powder raw materials in the metallurgical industry. Background Art

[0002] Powder metallurgy is a process technology that first prepares metal powders or uses existing metal powders (or mixtures of metal powders and non-metal powders) as raw materials, and then undergoes pressure or non-pressure forming and sintering to manufacture metal materials, composites, and various types of products. Nowadays, powder metallurgy technology has become the key to solving new material problems and plays a very important role in the development of new materials. During the powder metallurgy processing, it is often necessary to use transportation equipment to transfer powder raw materials. When the powder raw materials are transferred, dust is easily generated, which will not only cause environmental pollution but also seriously endanger the physical health of on-site operating workers. Therefore, in order to reduce the dust generation phenomenon, when transferring powder raw materials, a sealed box transfer method is generally adopted, that is, the powder raw materials are loaded into a sealed box at the storage bin, and then a carrying trolley is used to transport the box containing the powder raw materials to complete the transfer of the powder raw materials. However, this transfer method not only has low efficiency for the transfer of powder raw materials, but also dust will still be generated during the boxing process, that is, the dust-proof effect is not good. Summary of the Invention

[0003] The purpose of the present invention is to provide a dust-proof conveying device for powder raw materials in the metallurgical industry, which is used to solve the problems of low efficiency and easy dust generation during the transfer of powder raw materials in the existing technology in the metallurgical industry.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A dust-proof conveying device for powder raw materials in the metallurgical industry, wherein sealing plate structures are respectively provided at both ends of the tunnel-shaped box body; the belt conveying assembly is arranged in the inner cavity of the tunnel-shaped box body; the bottom end of the feeding housing is sleeved on the middle part of the rear end of the top surface of the tunnel-shaped box body; the material passing housing includes a collecting hopper connected to the bottom of the front end sealing plate of the tunnel-shaped box body, a connecting cylinder arranged on the front side of the collecting hopper and extending vertically, and a connecting housing connected between the rear side of the connecting cylinder and the front end of the collecting hopper; the bottom end of the vertical cylinder is fixedly butted against the top end of the connecting cylinder, a discharge pipe is connected to the front side of the vertical cylinder near the top end, a suction housing is connected to the position on the side wall of the vertical cylinder higher than the top end of the discharge pipe, and a filter screen plate is inlaid at the position on the side wall of the vertical cylinder corresponding to the suction housing; the shaft rod is rotatably installed at the axis of the vertical cylinder and the connecting cylinder; the spiral blade is fixed on the outer peripheral wall of the shaft rod; the lifting motor is used to drive the shaft rod to rotate; the air pipe is connected between the outer end of the suction housing and the intake end of the air extraction pump.

[0005] Preferably, a chassis is fixedly connected to the bottom end of the connecting cylinder. An axle seat, which is rotationally sleeved with the bottom end of the shaft rod in a matching manner, is sleeved in the middle of the chassis. A material passing port, which communicates with the front end of the connecting shell, is arranged in the middle of the rear side of the wall body of the connecting cylinder.

[0006] Preferably, the belt conveying assembly includes a plurality of roller shafts arranged in parallel at equal intervals and rotatably sleeved at the middle parts of the two side walls of the tunnel-shaped box body at both ends, a belt wound around the roller shafts, and a feeding motor fixed to one side of the rear end of the tunnel-shaped box body and drivingly connected to one end of the corresponding roller shaft.

[0007] Preferably, pressing strips are respectively fixed at positions corresponding to the two side edges of the top surface of the belt on the two side walls of the inner cavity of the tunnel-shaped box body.

[0008] Preferably, the pressing strip includes an arc-shaped rubber strip with a bottom surface fitting to the two side edges of the top surface of the belt and a steel strip axially embedded in the outer side wall of the arc-shaped rubber strip. A plurality of screw holes are arranged on the steel strip. Fixing screws, whose inner ends are in threaded socket matching with the screw holes, are movably sleeved on the two side walls of the tunnel-shaped box body.

[0009] Preferably, a scraping plate extending radially is fixed at a position on the outer peripheral wall of the top end of the shaft rod corresponding to the inner side wall of the filter mesh plate.

[0010] Preferably, the feeding shell includes a short pipe with a bottom end fixed to the middle of the rear end of the top surface of the tunnel-shaped box body, a spherical outer shell fixed to the top end of the short pipe, a spherical inner shell rotatably sleeved in the spherical outer shell, and a feeding pipe with a bottom end connected to the top end of the spherical inner shell.

[0011] Preferably, an inverted conical shell extending downward into the inner cavity of the tunnel-shaped box body is butted at the bottom end of the short pipe.

[0012] Preferably, a notch is centrally opened at the bottom end of the front wall of the inverted conical shell.

[0013] Preferably, a guide plate is arranged at the front end of the inner cavity of the tunnel-shaped box body. The rear end of the guide plate is tangent to the top of the front end of the belt, and the front end of the guide plate is connected to the bottom of the rear end of the aggregate hopper.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. A dust-proof conveying device for powder raw materials in the metallurgical industry according to the present invention can not only greatly improve the transfer efficiency of powder raw materials in the metallurgical industry, but also better avoid the problem of dust diffusion during the transfer of powder raw materials.

[0015] 2. A dust-proof conveying device for powder raw materials in the metallurgical industry according to the present invention has a simple overall structure, is not only convenient for maintenance and use, but also has a low input cost, so it is easy to be widely applied to the transfer process of powder raw materials. Brief Description of the Drawings

[0016] Figure 1 This is a three-dimensional structure schematic diagram of the whole of the present invention; Figure 2 For the present invention Figure 1 An enlarged structure schematic diagram at position A in; Figure 3 For the present invention Figure 1 An enlarged structure schematic diagram at position B in; Figure 4 This is a three-dimensional structure schematic diagram of the feeding housing of the present invention; Figure 5 This is a three-dimensional structure schematic diagram of the material-passing housing of the present invention; Figure 6 This is a three-dimensional structure schematic diagram of the pressing strip of the present invention.

[0017] In the figure: 1 - tunnel-shaped box body; 1.1 - fixing screw; 2 - belt conveyor assembly; 2.1 - roller shaft; 2.2 - belt; 2.3 - feeding motor; 3 - feeding housing; 3.1 - short pipe; 3.2 - spherical outer shell; 3.3 - spherical inner shell; 3.4 - feeding pipe; 3.5 - inverted conical housing; 3.5.1 - notch; 4 - material-passing housing; 4.1 - aggregate hopper; 4.2 - connecting cylinder; 4.2.1 - material-passing port; 4.3 - connecting housing; 4.4 - chassis; 4.5 - shaft seat; 5 - pressing strip; 5.1 - arc-shaped rubber strip; 5.2 - steel strip; 5.2.1 - screw hole; 6 - vertical cylinder; 6.1 - discharge pipe; 6.2 - suction housing; 6.3 - filter screen plate; )7 - shaft rod; 8 - spiral blade; 9 - lifting motor; 10 - scraper; 11 - air extraction pump; 12 - air pipe; 13 - guide plate. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-6, the present invention provides a technical solution, a dust-proof conveying device for powder raw materials in the metallurgical industry. Sealing plate structures are respectively provided at both ends of the tunnel-shaped box body 1; that is, the tunnel-shaped box body 1 is an overall sealed cavity structure extending along a straight line.

[0020] The belt conveying component 2 is arranged in the inner cavity of the tunnel-shaped box body 1; among them, the belt conveying component 2 includes a plurality of roller shafts 2.1 arranged equidistantly and in parallel, with both ends respectively rotatably sleeved in the middle of the two side walls of the tunnel-shaped box body 1, a belt 2.2 wound around the roller shafts 2.1, and a feeding motor 2.3 fixed on one side of the rear end of the tunnel-shaped box body 1 and drivingly connected to one end of the corresponding roller shaft 2.1. That is, the feeding motor 2.3 drives the rear roller shaft 2.1 to rotate, so that the closed belt can operate to form a belt conveyor.

[0021] The bottom end of the feeding housing 3 is sleeved on the middle of the rear end of the top surface of the tunnel-shaped box body 1. Among them, the feeding housing 3 includes a short tube 3.1 fixed at the bottom end to the middle of the rear end of the top surface of the tunnel-shaped box body 1, a spherical outer shell 3.2 fixed to the top end of the short tube 3.1, a spherical inner shell 3.3 rotatably sleeved in the spherical outer shell 3.2, and a feeding pipe 3.4 with its bottom end connected to the top end of the spherical inner shell 3.3. That is, by the rotation of the spherical inner shell 3.3 relative to the spherical outer shell 3.2, the feeding pipe 3.4 can be easily adjusted in a flexible tilting angle, so as to easily connect the top end of the feeding pipe 3.4 to the discharge port of the powder raw material storage bin. In addition, in order to reduce the dust generation during the feeding process, a conical shell 3.5 extending downward into the inner cavity of the tunnel-shaped box body 1 is butted at the bottom end of the short tube 3.1. A notch 3.5.1 is provided at the center of the bottom end of the front wall of the conical shell 3.5. That is, the bottom end of the conical shell 3.5 is close to the belt surface of the belt 2.2. During feeding, the powder raw materials can directly slide onto the belt surface. Due to the existence of the notch 3.5.1, it is easy to ensure the smoothness of feeding.

[0022] The material passing housing 4 includes a collecting hopper 4.1 connected to the bottom of the front end sealing plate of the tunnel-shaped box body 1, a connecting cylinder 4.2 arranged on the front side of the collecting hopper 4.1 and extending vertically, and a connecting housing 4.3 connected between the rear side of the connecting cylinder 4.2 and the front end of the collecting hopper 4.1. Among them, a chassis 4.4 is fixedly connected to the bottom end of the connecting cylinder 4.2, a shaft seat 4.5 is sleeved in the middle of the chassis 4.4, and a material passing port 4.2.1 communicating with the front end of the connecting housing 4.3 is provided in the middle of the rear side wall of the connecting cylinder 4.2. That is, through the collecting hopper 4.1, the powder raw materials unloaded at the discharging end of the belt conveying component 2 can be diverted into the connecting cylinder 4.2 through the connecting housing 4.3.

[0023] The bottom end of the vertical cylinder 6 is fixedly butted to the top end of the connecting cylinder 4.2. The front side of the vertical cylinder 6 near the top is connected with a discharge pipe 6.1, and the position on the side wall of the vertical cylinder 6 higher than the top end of the discharge pipe 6.1 is connected with a suction housing 6.2. A filter screen plate 6.3 is inlaid at the position on the side wall of the vertical cylinder 6 corresponding to the suction housing 6.2.

[0024] The shaft rod 7 is rotatably installed at the axis of the vertical cylinder 6 and the connecting cylinder 4.2; wherein, the bottom end of the shaft rod 7 is rotatably sleeved in the shaft seat 4.5.

[0025] The lifting motor 9 is used to drive the shaft rod 7 to rotate; the spiral blade 8 is fixed on the outer peripheral wall of the shaft rod 7; that is, the spiral blade 8, the shaft rod 7, the vertical cylinder 6 and the lifting motor 9 are jointly combined into a spiral conveying device to facilitate pushing the powder raw materials in the connecting cylinder 4.2 upward.

[0026] The air pipe 12 is connected between the outer end of the suction housing 6.2 and the intake end of the air extraction pump 11. That is, the air extraction pump 11 makes the inner cavity of the suction housing 6.2 in a negative pressure state through the air pipe 12, so that the dust generated in the tunnel-shaped box body 1 and the vertical cylinder 6 will gather at the top of the inner cavity of the vertical cylinder 。

[0027] In order to improve the sealing performance on both sides of the tape 2.2 and prevent powder raw materials from leaking from both sides of the tape 2.2, pressing strips 5 are respectively fixed at the positions of the two inner side walls of the tunnel-shaped box body 1 corresponding to the two side edges of the top surface of the tape 2.2. Among them, the pressing strip 5 includes an arc-shaped rubber strip 5.1 whose bottom surface fits against the two side edges of the top surface of the tape 2.2 and a steel plate strip 5.2 embedded along the axial direction on the outer side wall of the arc-shaped rubber strip 5.1. A number of screw holes 5.2.1 are provided on the steel plate strip 5.2, and fixing screws 1.1 whose inner ends are threadedly sleeved and matched with the screw holes 5.2.1 are movably sleeved on the two side walls of the tunnel-shaped box body 1.

[0028] In order to prevent the filter surface of the filter mesh plate 6.3 from being blocked, a radially extending scraping plate 10 is fixed at the position of the top end of the outer peripheral wall of the shaft rod 7 corresponding to the inner side wall of the filter mesh plate 6.3. That is, the scraping plate 10 rotating with the shaft rod continuously scrapes the filter surface of the filter mesh plate 6.3, so as to avoid the problem that dust particles are adsorbed on the filter surface of the filter mesh plate 6.3 and cause the filter mesh plate 6.3 to be blocked.

[0029] In order to facilitate the smooth unloading of the discharging end of the belt conveying assembly 2 and prevent powder raw materials from adhering to the belt surface after the tape 2.2 is unloaded, a guide plate 13 is provided at the front end of the inner cavity of the tunnel-shaped box body 1, the rear end of which is tangent to the top of the front end of the tape 2.2 and the front end is connected to the bottom of the rear end of the aggregate hopper 4.1. That is, the guide plate 13 can scrape the belt surface of the tape 2.2 and guide the unloaded powder raw materials into the aggregate hopper 4.1.

[0030] In summary, the powder raw materials in the storage bin enter the belt surface of the tape 2.2 of the belt conveying assembly 2 through the feeding housing 3. At the unloading end of the belt conveying assembly 2, the powder raw materials slide into the aggregate hopper 4.1 through the guide plate 13, and then slide into the connecting cylinder 4.2 through the connecting housing 4.3 and the material passing port 4.2.1.

[0031] The lifting motor 9 drives the spiral blade 8 and the scraper 10 to rotate synchronously through the shaft rod 7. The rotating spiral blade 8 continuously pushes the powder raw material in the inner cavity of the connecting cylinder 2.2 upward, and finally unloads the powder raw material to a predetermined location through the discharge pipe 6.1.

[0032] While transporting the powder raw material, the air extraction pump 11 evacuates the suction housing 6.2 through the air pipe 12, making the suction housing 6.2 in a negative pressure state. That is, the dust generated during the transportation of the powder raw material in the tunnel-shaped box 1 and the vertical cylinder 6 will flow towards the suction housing 6.2. The powder solid particles in the dust are intercepted on the inner filter surface of the filter mesh plate 6.3. Since the scraper 10 rotates continuously with the shaft rod 7, the dust particles intercepted on the inner filter surface of the filter mesh plate 6.3 can be scraped off in time to ensure the permeability of the filter mesh plate 6.3. And finally, the effect of preventing the dust generated during the transmission of the powder raw material from spreading to the external environment is achieved.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust-proof conveying device for powder raw materials in the metallurgical industry, characterized in that, Comprising: A tunnel-shaped box body (1), with sealing plate structures respectively provided at both ends of the tunnel-shaped box body (1); A belt conveyor assembly (2), which is arranged in the inner cavity of the tunnel-shaped box body (1); A feed housing (3), the bottom end of the feed housing (3) is sleeved on the middle part of the rear end of the top surface of the tunnel-shaped box body (1); A material-passing housing (4), the material-passing housing (4) includes an aggregate hopper (4.1) connected to the bottom of the front end sealing plate of the tunnel-shaped box body (1), a connecting cylinder (4.2) arranged on the front side of the aggregate hopper (4.1) and extending vertically, and a connecting housing (4.3) connected between the rear side of the connecting cylinder (4.2) and the front end of the aggregate hopper (4.1); A vertical cylinder (6), the bottom end of the vertical cylinder (6) is fixedly butted against the top end of the connecting cylinder (4.2), a discharge pipe (6.1) is connected to the front side of the vertical cylinder (6) near the top end, a suction housing (6.2) is connected to the side wall of the vertical cylinder (6) at a position higher than the top end of the discharge pipe (6.1), and a filter screen plate (6.3) is inlaid on the side wall of the vertical cylinder (6) corresponding to the suction housing (6.2); A shaft rod (7), the shaft rod (7) is rotatably installed at the axis of the vertical cylinder (6) and the connecting cylinder (4.2); A spiral blade (8), the spiral blade (8) is fixed on the outer peripheral wall of the shaft rod (7); A lifting motor (9), the lifting motor (9) is used to drive the shaft rod (7) to rotate; An air extraction pump (11); An air pipe (12), the air pipe (12) is connected between the outer end of the suction housing (6.2) and the intake end of the air extraction pump (11).

2. The dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 1, characterized in that: The bottom end of the connecting cylinder (4.2) is fixedly connected with a chassis (4.4), a shaft seat (4.5) which is rotationally sleeved and matched with the bottom end of the shaft rod (7) is sleeved in the middle of the chassis (4.4), and a material-passing port (4.2.1) communicating with the front end of the connecting housing (4.3) is provided in the middle of the rear side wall of the connecting cylinder (4.2).

3. A dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 1, characterized in that: The belt conveyor assembly (2) includes a plurality of roller shafts (2.1) arranged in parallel at equal intervals and the two ends of which are respectively rotationally sleeved on the middle parts of the two side walls of the tunnel-shaped box body (1), a belt (2.2) wound around the roller shafts (2.1), and a feeding motor (2.3) fixed on one side of the rear end of the tunnel-shaped box body (1) and drivingly connected with one end of the corresponding roller shaft (2.1).

4. A dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 3, characterized in that: On the two side walls of the inner cavity of the tunnel-shaped box body (1), pressing strips (5) are respectively fixed at positions corresponding to the two side edges of the top surface of the belt (2.2).

5. The dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 4, characterized in that: The pressing strip (5) includes an arc-shaped rubber strip (5.1) with the bottom surface fitting on the two side edges of the top surface of the belt (2.2) and a steel plate strip (5.2) axially inlaid on the outer side wall of the arc-shaped rubber strip (5.1), a plurality of screw holes (5.2.1) are provided on the steel plate strip (5.2), and fixing screws (1.1) with the inner ends threadedly sleeved and matched with the screw holes (5.2.1) are movably sleeved on the two side walls of the tunnel-shaped box body (1).

6. The dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 1, characterized in that: At a position on the outer peripheral wall top of the shaft rod (7) corresponding to the inner side wall of the filter mesh plate (6.3), a radially extending scraper (10) is fixed.

7. A dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 1, characterized in that: The feed housing (3) includes a short tube (3.1) with its bottom end fixed to the middle of the rear end of the top surface of the tunnel-shaped box body (1), a spherical outer shell (3.2) fixed to the top end of the short tube (3.1), a spherical inner shell (3.3) rotatably sleeved in the spherical outer shell (3.2), and a feed pipe (3.4) with its bottom end connected to the top end of the spherical inner shell (3.3).

8. A dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 7, characterized in that: The bottom end of the short tube (3.1) is butted with an inverted conical shell (3.5) extending downward into the inner cavity of the tunnel-shaped box body (1).

9. A dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 8, characterized in that: A notch (3.5.1) is centrally opened at the bottom end of the front wall of the inverted conical shell (3.5).

10. A dust-proof conveying device for powder raw materials in the metallurgical industry according to claim 3, characterized in that: In the front end of the inner cavity of the tunnel-shaped box body (1), a material guide plate (13) is provided, the rear end of which is tangent to the top of the front end of the belt (2.2) and the front end of which is connected to the bottom of the rear end of the aggregate hopper (4.1).

Images