Hydrogenation and dehydrogenation furnace

Abstract

The utility model discloses a hydrogenation dehydrogenation furnace which comprises a main box body, a treatment box and a dehydrogenation box, a gas channel controlled by a valve is formed among the main box body, the treatment box and the dehydrogenation box, a feeding assembly is arranged between the treatment box and the dehydrogenation box, the feeding assembly comprises an inclined feeding channel, and the feeding channel is communicated with the treatment box. Materials are obliquely and upwards discharged towards the dehydrogenation box after passing through the feeding channel, a baffle is arranged in the dehydrogenation box, and the obliquely-upward extension line of the feeding channel is exactly connected with the outer end of the top face of the baffle or is spaced from the outer end of the top face of the baffle. Through the arrangement of the feeding mechanism, small titanium powder can rise to a higher position under the action of gas flowing, large titanium powder falls down, the small titanium powder rises to a baffle, and then the titanium powder is discharged after being subjected to heating dehydrogenation and other treatment; and large titanium powder falls below the dehydrogenation box to be heated and dehydrogenated, fine particles in the titanium powder can be preliminarily screened, and screening of the titanium powder is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of titanium powder production, in particular to a hydrogenation and dehydrogenation furnace. Background Art

[0002] Titanium metal is strong, lightweight, and has good biocompatibility and corrosion resistance, making it very suitable for manufacturing aerospace parts and medical implants. However, due to the complex processing and production of titanium and titanium alloy products and the low yield rate, a large amount of titanium waste is generated in the process of manufacturing parts, and the manufacturing cost is high, making it difficult to be widely promoted and applied. In modern process technology, titanium and titanium alloys are usually converted into titanium powder before processing. The titanium metal parts produced in this way have greatly improved forming technology, improved material utilization, reduced production costs, and have broad market application prospects. Hydrogenation and dehydrogenation is a common process for producing titanium powder, which is usually carried out in a hydrogenation and dehydrogenation furnace.

[0003] After hydrogenation, the titanium metal hydride needs to be ground and sieved to produce fine powder. After the powder is sieved, vacuum and heating are used to remove interstitial hydrogen. The existing hydrogenation-dehydrogenation furnace enters the dehydrogenation process after the titanium powder is crushed. Since the titanium powder particles are of different sizes, they need to be graded and screened after dehydrogenation. The existing hydrogenation-dehydrogenation furnace generally does not have a sorting function, so it is not convenient for subsequent screening. Summary of the invention

[0004] An object of the present application is to provide a hydrogenation dehydrogenation furnace.

[0005] In order to achieve the above purpose, the technical solution adopted in the present application is: a gas channel controlled by a valve is formed between the dehydrogenation boxes, a feeding assembly is arranged between the processing box and the dehydrogenation box, the feeding assembly includes an inclined feeding channel, and the material is discharged obliquely upward toward the dehydrogenation box after passing through the feeding channel. A baffle is provided in the dehydrogenation box, and the upward extension line of the feeding channel is exactly connected with the outer end of the top surface of the baffle or is spaced from the outer end of the top surface of the baffle.

[0006] Preferably, the feeding assembly comprises a feeding pipe, a mounting portion is provided in the middle of the feeding pipe, spiral blades are installed on the periphery of the mounting portion, and the spiral blades, the inner wall of the feeding pipe and the mounting portion together form the feeding channel.

[0007] Preferably, the spiral blade forms an outlet inclined upward at the top end of the feeding pipe.

[0008] Preferably, the feeding assembly extends into the inner cavity of the dehydrogenation box, and the horizontal distance between the inner side of the feeding assembly and the outer side of the baffle is between 30 cm and 60 cm; the inclination angle of the feeding assembly is between 15° and 30°.

[0009] Preferably, a sealing portion is provided between the feeding assembly and the wall surface of the dehydrogenation box.

[0010] Preferably, a collecting portion is provided at the bottom of one side of the baffle away from the feeding pipe, and a first feeding port is provided on the outer wall of the dehydrogenation box.

[0011] As a preference, a screening plate is arranged directly below the baffle, the screening plate is provided with mesh holes, and the dehydrogenation box is provided with a second material taking port above a side of the screening plate away from the feeding pipe.

[0012] Preferably, a third material taking port is provided between the screening plate and the bottom of the dehydrogenation box.

[0013] Preferably, the processing box comprises a first processing box and a second processing box, and the feeding pipe is arranged between the second processing box and the dehydrogenation box.

[0014] The hydrogenation and dehydrogenation furnace further comprises a main box body for accommodating a vacuum pump and integrating pipelines, a cover adjusting portion for opening and closing, and a fixing frame for installing the processing box.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] Through the setting of the feeding component, smaller titanium powder can rise higher under the action of gas flow, while larger titanium powder will fall down; according to this principle and the setting of the feeding channel, smaller titanium powder will rise to the baffle plate and then be discharged after heating and dehydrogenation; while larger titanium powder will fall to the bottom of the dehydrogenation box for heating and dehydrogenation and then be discharged; this process can preliminarily screen the finer particles in the titanium powder, which is beneficial to the subsequent screening of titanium powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment of the present application.

[0018] Figure 2 yes Figure 1 Front view of .

[0019] Figure 3 yes Figure 1 Side view of.

[0020] Figure 4 yes Figure 3 sectional view of .

[0021] Figure 5 yes Figure 4 Enlarged view at A.

[0022] In the figure: 1. main box body; 2. dehydrogenation box; 3. first processing box; 4. cover adjustment part; 5. second processing box; 6. fixing frame; 7. connecting pipe; 8. feeding pipe; 9. first feeding port; 10. baffle; 11. second feeding port; 12. screening plate; 13. third feeding port; 14. installation part; 15. spiral blade. DETAILED DESCRIPTION

[0023] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0026] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0027] Example:

[0028] Reference Figure 1-Figure 4 The present embodiment provides a hydrogenation dehydrogenation furnace, comprising a main box 1, a processing box and a dehydrogenation box 2. A gas passage controlled by a valve is formed between the main box 1, the processing box and the hydrogenation box. A feeding assembly is provided between the processing box and the dehydrogenation box 2. The feeding assembly comprises an inclined feeding passage. After passing through the feeding passage, the material is discharged obliquely upward toward the dehydrogenation box 2. A baffle 10 is provided in the dehydrogenation box 2. The upward extension line of the feeding passage is exactly connected to the outer end of the top surface of the baffle 10 (such as Figure 5 ) or a gap is formed with the outer end of the top surface of the baffle 10. This embodiment of the gap is actually Figure 5The state will be extended to the upper left, that is, the state where the inclination angle of the feeding component becomes larger. Through such a setting, when feeding, the air pump in the main box 1 is turned on to form gas circulation, so that gas flow is formed between the processing box and the dehydrogenation box 2, and such gas flow will cause the material to enter the dehydrogenation box 2 along the feeding channel; and because the feeding channel is inclined upward, the material has a certain initial velocity after entering, so it can move upward for a distance, and because the titanium powder has different particle sizes when passing through here, the smaller titanium powder can rise higher under the action of gas flow, while the larger titanium powder will fall; according to this principle combined with the setting of the feeding channel, the smaller titanium powder will rise to the baffle 10, and then be discharged after being heated and dehydrogenated; and the larger titanium powder will fall to the bottom of the dehydrogenation box 2 for heating and dehydrogenation, and then be discharged; this process can preliminarily screen the finer particles in the titanium powder, which is conducive to the subsequent screening of titanium powder.

[0029] like Figure 3-Figure 5 As shown, the feeding assembly includes a feeding tube 8, a mounting portion 14 is provided in the middle of the feeding tube 8, a spiral blade 15 is installed on the outer periphery of the mounting portion 14, and the spiral blade 15, the inner wall of the feeding tube 8 and the mounting portion 14 together form a feeding channel. Preferably, the spiral blade 15 forms an outlet inclined upward at the top of the feeding tube 8, so that the final material can be discharged without being blocked by the spiral blade 15.

[0030] In order to allow smaller titanium powder to fall onto the baffle 10 for primary screening, the feeding assembly extends into the inner cavity of the dehydrogenation box 2, so that the end of the feeding channel is close to the baffle 10. The horizontal distance between the inner side of the feeding assembly and the outer side of the baffle 10 is preferably between 30 cm and 60 cm. A longer distance will result in smaller titanium powders also being unable to move onto the baffle 10, which is not conducive to screening. The inclination angle of the feeding assembly is between 15° and 30°. A larger angle will cause larger titanium powders to require a larger gas flow to move when feeding.

[0031] In order to improve the sealing performance, a sealing portion is provided between the feeding assembly and the wall surface of the dehydrogenation box 2 .

[0032] A collecting part is provided at the bottom of the side of the baffle 10 away from the feeding pipe 8, and a first feeding port 9 is provided on the outer wall of the dehydrogenation box 2. A screening plate 12 is provided directly below the baffle 10, and the screening plate 12 is provided with a mesh. A second feeding port 11 is provided above the side of the screening plate 12 away from the feeding pipe 8 of the dehydrogenation box 2, wherein the preferred horizontal distance between the screening plate 12 and the feeding pipe 8 is less than the horizontal distance between the baffle 10 and the feeding pipe 8, and the larger titanium powder may not reach the position directly below the baffle 10 when falling, so this design can make the larger titanium powder that falls fully fall on the screening plate 12; the screening plate 12 is suitable for leaving titanium powder that exceeds the set caliber (i.e. the caliber of the mesh), and titanium powder in the middle specification passes through to the bottom layer. A third feeding port 13 is provided between the screening plate 12 and the bottom of the dehydrogenation box 2. The second feeding port 11 can take titanium powder with specifications exceeding the set caliber, and the third feeding port 13 is used to take titanium powder with intermediate specifications.

[0033] The processing box includes a first processing box 3 and a second processing box 5, and a feeding pipe 8 is arranged between the second processing box 5 and the dehydrogenation box 2. The hydrogenation dehydrogenation furnace also includes a main box body 1 for storing a vacuum pump and integrating pipelines, a cover body adjustment part 4 for opening and closing, and a fixing frame 6 for installing the processing box. A connecting pipe 7 can be arranged between the first processing box 3 and the second processing box 5. A valve can be arranged on the connecting pipe to control opening and closing. The first processing box 3 and the second processing box 5 can process processes such as hydrogenation and crushing, and can be selected according to actual conditions.

[0034] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A hydrogenation and dehydrogenation furnace, comprising a main box, a processing box and a dehydrogenation box, wherein a gas passage controlled by a valve is formed between the main box, the processing box and the dehydrogenation box, characterized in that: A feeding assembly is arranged between the processing box and the dehydrogenation box, and the feeding assembly includes an inclined feeding channel. After passing through the feeding channel, the material is discharged obliquely upward toward the dehydrogenation box. A baffle is arranged in the dehydrogenation box, and an upward extension line of the feeding channel is exactly connected with the outer end of the top surface of the baffle or is spaced from the outer end of the top surface of the baffle.

2. The hydrogenation dehydrogenation furnace according to claim 1, characterized in that: The feeding assembly includes a feeding tube, a mounting portion is provided in the middle of the feeding tube, a spiral blade is installed on the periphery of the mounting portion, and the spiral blade, the inner wall of the feeding tube and the mounting portion together form the feeding channel.

3. The hydrogenation dehydrogenation furnace according to claim 2, characterized in that: The spiral blade forms an outlet inclined upward at the top end of the feeding pipe.

4. The hydrogenation dehydrogenation furnace according to claim 1, characterized in that: The feeding assembly extends into the inner cavity of the dehydrogenation box, and the horizontal distance between the inner side of the feeding assembly and the outer side of the baffle is between 30 cm and 60 cm.

5. The hydrogenation dehydrogenation furnace according to claim 1, characterized in that: A sealing portion is provided between the feeding assembly and the wall surface of the dehydrogenation box.

6. The hydrogenation dehydrogenation furnace according to claim 2, characterized in that: A collecting portion is arranged at the bottom of one side of the baffle away from the feeding pipe, and a first material taking port is arranged on the outer wall of the dehydrogenation box.

7. The hydrogenation dehydrogenation furnace according to claim 2, characterized in that: A screening plate is arranged directly below the baffle, and the screening plate is provided with mesh holes. The dehydrogenation box is provided with a second material taking port above a side of the screening plate away from the feeding pipe.

8. The hydrogenation dehydrogenation furnace according to claim 7, characterized in that: A third material taking port is arranged between the screening plate and the bottom of the dehydrogenation box.

9. The hydrogenation dehydrogenation furnace according to claim 2, characterized in that: The processing box includes a first processing box and a second processing box, and the feeding pipe is arranged between the second processing box and the dehydrogenation box.

10. The hydrogenation dehydrogenation furnace according to claim 1, characterized in that: It also includes a main box body for accommodating a vacuum pump and integrating pipelines, a cover body adjustment part for opening and closing, and a fixing frame for installing the processing box.

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