Dust recovery device for isostatic pressing graphite die-casting die
By setting up a dust collection tank and a wind knife dust removal section around the static pressure graphite die-casting mold, the graphite dust is cleaned by using negative and positive pressure wind, the problem of graphite dust spreading in the processing plant is solved, automatic collection and cleaning is realized, and the working environment is improved.
Patent Information
- Application Number
- CN202422277570.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The graphite dust recovery device in the prior art has a complex structure and cannot be used directly with the die-casting device, resulting in graphite dust spreading in the processing factory, affecting the working environment and health.
A dust recovery device including a dust collection tank and a air knife dust removal part is designed. Using a negative pressure chamber and a positive pressure air outlet device, graphite dust is cleaned through the porous groove bottom and the air knife dust removal part, and integrated around the static pressure graphite die-casting mold to realize automated collection and cleaning.
It realizes efficient collection and cleaning of graphite dust, improves the working environment, reduces the need for manual cleaning, has a simple structure and good collection effect.
Smart Images
Figure CN223210097U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of isostatic graphite processing, in particular to a dust recovery device for an isostatic graphite die-casting mold. Background Art
[0002] Isostatically pressed graphite, characterized by high strength, high density, high purity, and a dense and uniform structure, is widely used in fields such as semiconductors, solar energy, electrical discharge machining, and nuclear energy. However, the production process of isostatically pressed graphite generates a large amount of graphite dust. Due to its tiny particles, this dust often permeates the entire processing plant, making it difficult to clean and causing varying degrees of harm to workers.
[0003] CN213611991U discloses a graphite dust recovery device comprising a dust box with an air inlet on one side connected to a dust hood via an air inlet pipe, an air outlet on the other side of the dust box, a fan at the air outlet, a filter device on the top of the dust box near the air inlet, and an electrostatic adsorption device on the top of the dust box near the air outlet. A first powder receiving bin is located below the filter device, and a second powder receiving bin is located below the electrostatic adsorption device. The device dries graphite powder using a heating wire within the dust hood, preventing it from adhering to the air inlet pipe and making it more easily attracted by the electrostatic adsorption device. The first filter screen performs preliminary filtration of the graphite dust, followed by adsorption of fine graphite dust particles by the electrostatic adsorption device. Finally, the second filter screen performs final filtration of the graphite dust in the gas. This graphite dust recovery device has a complex structure and cannot be directly used with a die-casting device. Utility Model Content
[0004] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the above background technology and provide a dust recovery device for isostatic graphite die-casting molds with a simple structure and good dust collection effect.
[0005] In order to solve the above technical problems, the technical solutions proposed by the present invention are as follows:
[0006] A dust recovery device for an isostatic graphite die-casting mold, comprising: a dust collection trough formed by a baffle and a trough bottom, wherein the trough bottom is provided with a die-casting mold receiving hole for placing the die-casting mold;
[0007] The air knife dust removal section is located at the end of the isostatic graphite die-casting output end of the dust collection trough. Positive pressure air outlet devices are symmetrically arranged on the two opposite side panels on the left and right of the air knife dust removal section. The positive pressure air outlet devices are movably connected to the side panels. The two positive pressure air outlet devices clean the surface of the isostatic graphite die-casting transmitted from the dust collection trough by blowing out positive pressure air. The bottom of the air knife dust removal section and the bottom of the dust collection trough are both porous trough bottoms, and a negative pressure chamber is provided under the dust collection trough and the air knife dust removal section.
[0008] In one embodiment, the dust collecting trough is formed by inlaying two stainless steel plates, and uniform micropores are formed on the stainless steel plates.
[0009] In one embodiment, the stainless steel plate is honeycomb-shaped, and the two pieces of stainless steel form a V-shaped groove.
[0010] In one embodiment, the angle of the V-shaped groove is 120°-130°.
[0011] In one embodiment, the strength of the negative pressure chamber is 220-260 mbar.
[0012] In one embodiment, each positive pressure air outlet device includes a paired air outlet plate, the two air outlet plates form an angle of 15°-20° and form an air outlet at the end, and the air outlet is in the shape of a vertical long narrow strip.
[0013] In one embodiment, the positive pressure air outlet device further includes a fastener and a connecting shaft. The top plate and the bottom plate of the positive pressure air outlet device are fixed to the side panel via the fastener, and the connecting shaft passes through the top plate and the bottom plate.
[0014] In one embodiment, the negative pressure chamber is connected to the central dust collection device via a pipeline.
[0015] In one embodiment, the wind pressure of the positive pressure air outlet device is 0.5-0.7 MPa.
[0016] In one embodiment, an air source interface is provided on the side panel of the air knife dust removal unit near the air outlet for connecting to a fan to input positive pressure air.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the dust recovery device for isostatic graphite die-casting molds of the present application is arranged around the periphery of the isostatic graphite die-casting mold and is used to collect graphite dust generated during the die-casting process. A negative pressure chamber is formed at the bottom of the dust recovery device, and the dust is collected by using negative pressure, resulting in a good collection effect. The bottom of the collection tank is a porous bottom, so that the collected dust can be recycled. Furthermore, the air knife dust removal unit cooperates with the dust collection tank, and the conveying device conveys the freshly die-cast isostatic graphite die-casting to the air knife dust removal unit. At this time, the surface of the isostatic graphite die-casting carries some graphite dust. The positive pressure air blown out by the positive pressure air outlet devices symmetrically arranged on the two opposite side panels of the air knife dust removal unit is used to clean the surface of the isostatic graphite die-casting, and the blown-off graphite dust is collected by using the negative pressure chamber at the bottom. By using the device of the present application, graphite dust generated during the die-casting process of isostatic graphite die-casting parts can be cleaned and collected, solving the problems of a harsh working environment and the need for manual cleaning caused by dust. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 It is a schematic structural diagram of a dust recovery device for an isostatic graphite die-casting mold according to one embodiment. DETAILED DESCRIPTION
[0020] In order to facilitate the understanding of the present invention, the present invention will be described in more comprehensive and detailed manner below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.
[0021] Unless otherwise defined, all technical terms used hereinafter have the same meanings as those generally understood by those skilled in the art. The technical terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.
[0022] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.
[0023] See also Figure 1A dust recovery device 100 for isostatically pressed graphite die-casting molds includes a dust collection trough 10 and an air knife dust removal unit 20 connected to the end of the dust collection trough 10. The dust collection trough 10 is formed by a baffle 12 and a trough bottom 14. The trough bottom 14 has a die-casting mold receiving hole 16 for accommodating the die-casting mold 2. The trough bottom 14 is porous.
[0024] The air knife dust removal unit 20 is located at the end of the isostatic graphite die-casting output end of the dust collection trough 10. Positive pressure air outlet devices 24 are symmetrically provided on the two side panels 22 of the air knife dust removal unit 20. The positive pressure air outlet devices 24 are movably connected to the side panels 22. The two positive pressure air outlet devices 24 are used to clean the surface of the isostatic graphite die-casting transferred from the dust collection trough 10. The bottom of the air knife dust removal unit 20 and the bottom 14 of the dust collection trough 10 are both porous bottoms. In other words, the bottom of the air knife dust removal unit 20 and the bottom 14 of the dust collection trough 10 have the same structure. The specific structure of the bottom 14 of the dust collection trough 10 is only described below. A negative pressure chamber 30 is provided at the bottom of the dust collection trough 10 and the air knife dust removal unit 20.
[0025] The dust recovery device 100 for isostatic graphite die-casting molds disclosed herein is mounted around the periphery of an isostatic graphite die-casting mold 2 to collect graphite dust generated during the die-casting process. A negative pressure chamber 30 is formed at the bottom of the dust recovery device 100, effectively collecting dust using the negative pressure. The bottom 14 of the collection trough 10 is porous, allowing the collected dust to be recycled. Furthermore, the air knife dust removal unit 20 cooperates with the dust collection tank 10, and the conveying device of the isostatic graphite die-casting mold conveys the newly die-cast isostatic graphite die-casting from the dust collection tank 10 to the air knife dust removal unit 20. At this time, the surface of the isostatic graphite die-casting carries some graphite dust. The positive pressure air blown out by the positive pressure air outlet device 24 symmetrically arranged on the two opposite side panels 22 of the air knife dust removal unit 20 is used to clean the surface of the isostatic graphite die-casting. The bottom of the air knife dust removal unit 20 and the bottom 14 of the dust collection tank 10 are both porous bottoms, and the negative pressure chamber 30 at the bottom is used to collect the blown-off graphite dust. By using the device of the present application, the graphite dust generated by the isostatic graphite die-casting during the die-casting process can be cleaned and collected, solving the problem of a harsh working environment caused by dust and the need for manual cleaning.
[0026] Specifically, in one embodiment, the dust collection trough 10 is formed by inlaying two stainless steel plates 110, and the stainless steel plates 110 are provided with uniform micropores. The size of the micropores can allow dust to pass through and is easy to process and shape. More specifically, in one embodiment, the stainless steel plate 110 is honeycomb-shaped, and two pieces of stainless steel are inlaid to form a V-shaped groove. The angle of the V-shaped groove is 120°-130°, and the V-shaped groove is more conducive to the collection of graphite dust. Specifically, the strength of the negative pressure chamber 30 is 220-260mbar. By utilizing the negative pressure adsorption effect and combining the smooth surface of the stainless steel plate 110, the graphite dust can more easily slide down the V-shaped groove with an inclined angle, and gather into the central dust collection device through the micropores of the stainless steel plate 110 for recycling.
[0027] Specifically, in one embodiment, each positive pressure air outlet device 24 includes an air outlet plate 240 used in pair, and the two air outlet plates 240 form an angle of 15°-20° and form an air outlet 244 at the end, and the air outlet 244 is in the shape of a vertical long narrow mouth. The wind pressure of the positive pressure air outlet device is 0.5-0.7MPa. Isostatic graphite die castings are generally cylindrical. The use of a long narrow mouth air outlet can increase the wind force and increase the effective surface acting on the surface of the isostatic graphite die casting, thereby effectively removing the graphite dust on its surface. The structure is simple and the cleaning effect is good. Specifically, in one embodiment, the side panel 22 of the air knife dust removal unit 20 is located near the air outlet 240 and is provided with an air source interface 246 for connecting a fan to input positive pressure wind.
[0028] In one embodiment, the positive pressure air outlet device 24 further includes a clamping member 243 and a connecting shaft 245. The top plate 241 and bottom plate (not shown) of the positive pressure air outlet device 24 are both secured to the side panel via the clamping member 243. The connecting shaft 245 extends through the top plate 241 and bottom plate. The clamping member 243 and connecting shaft 245 securely secure the positive pressure air outlet device 24 to the side panel 22.
[0029] In one embodiment, the negative pressure chamber 30 is connected to the central dust collection device through a pipe 32, and all graphite dust collected by the dust recovery device 100 can be recovered into the central dust collection device, which not only solves the problem of harsh working environment and the need for manual cleaning caused by dust, but also allows the collected graphite dust to be reused in isostatic graphite die-casting molding.
[0030] The dust recovery device 100 for isostatic graphite die-casting molds of the present application is arranged around the periphery of the isostatic graphite die-casting mold 2 and is used to collect graphite dust generated during the die-casting process. A negative pressure chamber 30 is formed at the bottom of the dust recovery device 100, which uses negative pressure to collect dust, resulting in a good collection effect. The bottom 14 of the collection tank 10 is porous, so that the collected dust can be recycled. Furthermore, an air knife dust removal unit 20 cooperates with the dust collection tank 10. A conveyor device transfers the freshly die-cast isostatic graphite die-casting from the dust collection tank 10 to the air knife dust removal unit 20. At this time, the surface of the isostatic graphite die-casting carries some graphite dust. Positive pressure air is blown out by positive pressure air outlet devices 24 symmetrically arranged on two opposite side panels 22 of the air knife dust removal unit 20 to clean the surface of the isostatic graphite die-casting, and the negative pressure chamber 30 at the bottom collects the blown-off graphite dust. By adopting the device of the present application, the graphite dust generated during the die-casting process of isostatic graphite die-castings can be cleaned and collected, thus solving the problem of a harsh working environment and the need for manual cleaning caused by dust. Furthermore, the bottom of the collecting tank 10 is a stainless steel plate, which has a smooth surface and is easy to clean, and graphite dust is not easy to deposit on the V-shaped groove. The two air outlet plates 240 of the positive pressure air outlet device 24 form an angle of 15°-20° and form an air outlet 244 at the end, and the air outlet 244 is in the shape of a vertical long narrow mouth. The wind pressure of the positive pressure air outlet device is 0.5-0.7MPa. Since isostatic graphite die-castings are generally cylindrical, the use of a long narrow mouth air outlet can increase the wind force and increase the effective surface acting on the surface of the isostatic graphite die-casting, thereby effectively removing the graphite dust on its surface, with a simple structure and good cleaning effect.
Claims
1. A dust recovery device for isostatic graphite die-casting mold, characterized in that: include: A dust collecting trough formed by a baffle and a trough bottom, wherein the trough bottom is provided with a die-casting mold accommodating hole for placing the die-casting mold; The air knife dust removal section is located at the end of the isostatic graphite die-casting output end of the dust collection trough. Positive pressure air outlet devices are symmetrically arranged on the two opposite side panels on the left and right of the air knife dust removal section. The positive pressure air outlet devices are movably connected to the side panels. The two positive pressure air outlet devices clean the surface of the isostatic graphite die-casting transmitted from the dust collection trough by blowing out positive pressure air. The bottom of the air knife dust removal section and the bottom of the dust collection trough are both porous trough bottoms, and a negative pressure chamber is provided under the dust collection trough and the air knife dust removal section.
2. The dust recovery device for isostatic graphite die-casting mold according to claim 1, characterized in that: The dust collecting trough is formed by inlaying two stainless steel plates, and uniform micropores are opened on the stainless steel plates.
3. The dust recovery device for isostatic graphite die-casting mold according to claim 2, characterized in that: The stainless steel plate is honeycomb-shaped, and the two pieces of stainless steel form a V-shaped groove.
4. The dust recovery device for isostatic graphite die-casting mold according to claim 3, characterized in that: The angle of the V-shaped groove is 120°-130°.
5. The dust recovery device for isostatic graphite die-casting mold according to claim 1, characterized in that: The strength of the negative pressure chamber is 220-260 mbar.
6. The dust recovery device for isostatic graphite die-casting mold according to claim 1, characterized in that: Each positive pressure air outlet device includes a paired air outlet plate, the two air outlet plates form an angle of 15°-20° and form an air outlet at the end, and the air outlet is in the shape of a vertical long narrow strip.
7. The dust recovery device for isostatic graphite die-casting mold according to claim 6, characterized in that: The positive pressure air outlet device also includes a clamping piece and a connecting shaft. The top plate and the bottom plate of the positive pressure air outlet device are fixed to the side panel through the clamping piece, and the connecting shaft is passed through the top plate and the bottom plate.
8. The dust recovery device for isostatic graphite die-casting mold according to claim 1, characterized in that: The negative pressure chamber is connected to the central dust collection device through a pipeline.
9. The dust recovery device for isostatic graphite die-casting mold according to claim 1, characterized in that: The wind pressure of the positive pressure air outlet device is 0.5-0.7MPa.
10. The dust recovery device for isostatic graphite die-casting mold according to claim 1, characterized in that: The side panel of the air knife dust removal unit is located near the air outlet and is provided with an air source interface for connecting a fan to input positive pressure air.