Box body for degassing screw

Abstract

The utility model relates to the technical field of degassing screws, and provides a box body for a degassing screw, which comprises a cavity, a sealing cover, a barrel and a cavity wall, the cavity is provided with an opening, the sealing cover is detachably arranged on the cavity and used for sealing the opening, the cavity wall is arranged in the cavity, the two ends of the barrel penetrate through the cavity, and a plurality of opening areas are arranged on the side wall of the barrel in the circumferential direction. A plurality of through holes are formed in the side wall of the trepanning area of the cylinder body, the filter plate is arranged in the cavity and used for covering the trepanning area of the cylinder body, the cavity body is further provided with an extraction opening, and the extraction opening is used for installing an extraction pipeline. According to the technical scheme, the problem that the filter plate is difficult to replace in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of degassing spirals, and in particular to a box body used for degassing spirals. Background Art

[0002] Most of the filter screens of degassing spirals on the market are made of metal sintered mesh, and the connection between the metal sintered mesh and the degassing spiral shell is welding. When the metal filter screen is damaged or the filtering effect deteriorates and needs to be replaced, the exhaust spiral needs to be disassembled as a whole, cut and re-welded, which is a large workload, and the concentricity cannot be well guaranteed, and the construction difficulty will also increase.

[0003] The minimum filtration accuracy of metal sintering is currently 1 micron, and the microporous channel of the sintered mesh is not a straight line. Its filtration channel is curved and irregular. When ultrafine powders smaller than 1 micron enter the metal sintered mesh, some of them will not pass through the sintered filter and remain inside the sintered filter. This will cause the metal sintered filter to quickly become blocked and fail, and thus fail to play the role of ventilation and air extraction, resulting in unstable use of the degassing spiral and increased maintenance costs. Utility Model Content

[0004] The utility model provides a box body for a degassing spiral, which solves the problem of difficulty in replacing filter plates of a degassing spiral device in the prior art.

[0005] The technical solution of the utility model is as follows:

[0006] include:

[0007] a cavity having an opening,

[0008] A sealing cover is detachably arranged on the cavity and is used to seal the opening.

[0009] The cylinder is arranged in the cavity, both ends of the cylinder penetrate the cavity wall of the cavity, the side wall of the cylinder has a plurality of opening areas around its circumference, and the side wall of the opening area of ​​the cylinder has a plurality of through holes,

[0010] A filter plate is disposed in the cavity, and the filter plate is used to cover the outside of the opening area of ​​the cylinder.

[0011] The cavity is also provided with an air extraction port, and the air extraction port is used for installing an air extraction pipeline.

[0012] As a further technical solution, the housing of the degassing spiral is characterized by further comprising:

[0013] A pressure plate cover is used to press and fix the filter plate.

[0014] A tightening member is arranged on the cavity, and is used to tighten the pressure plate cover.

[0015] As a further technical solution, the housing of the degassing spiral is characterized in that the pressure plate cover comprises:

[0016] roof,

[0017] A pressing plate is arranged on one side of the top plate, one side of the pressing plate has a notch, the shape of the notch is the same as the outer wall shape of the filter plate, and the pressing plate is used to press the outside of the filter plate.

[0018] A plurality of the pressing plates are arranged in parallel, and the tightening member is used for tightening the top plate.

[0019] As a further technical solution, the housing of the degassing spiral is characterized by further comprising:

[0020] The sealing member is arranged around the opening area.

[0021] As a further technical solution, the housing of the degassing spiral is characterized in that:

[0022] There are two openings, and the two openings are respectively located on both sides of the cylinder.

[0023] There are two opening areas, and the two opening areas are respectively close to the two openings.

[0024] There are two filter plates, and the two filter plates are respectively covered on the two opening areas.

[0025] As a further technical solution, the housing of the degassing spiral is characterized in that:

[0026] The sealing cover is provided with the tightening member, and the sealing cover is provided with a threaded hole.

[0027] The pressing member is a pressing screw, and the pressing member passes through the threaded hole. After the pressing member rotates, one end of the pressing member located in the cavity presses against the pressure plate cover.

[0028] As a further technical solution, the housing of the degassing spiral is characterized by further comprising:

[0029] A sealing gasket is sleeved outside the tightening member.

[0030] The sealing nut is threadedly connected to the tightening member, and the sealing gasket is located between the sealing cover and the sealing nut. When the sealing nut is rotated, the sealing gasket is tightened.

[0031] As a further technical solution, the housing of the degassing spiral is characterized by further comprising:

[0032] A perforated plate is arranged between the pressure plate cover and the filter plate.

[0033] As a further technical solution, the housing of the degassing spiral is characterized by further comprising:

[0034] Flanges are provided at both ends of the cylinder.

[0035] As a further technical solution, the housing of the degassing spiral is characterized in that:

[0036] The number of the openings is the same as the number of the opening areas, and a plurality of the opening areas correspond to one opening respectively.

[0037] The opening is used to allow the filter plate to enter the cavity.

[0038] The working principle and beneficial effects of the utility model are:

[0039] In the utility model, Figure 4 As shown, the cavity is provided with an opening, through which the filter plate can be placed in the cavity, and then the filter plate is covered on the opening area with a through hole wrapped on the side wall of the cylinder, and the opening is sealed by a sealing cover, and the degassing function can be achieved by pumping air through the exhaust pipe, and the filter plate can be covered outside the opening area by magnetic attraction or by tightening with a top screw, and the cylinder can be made of a metal material with higher strength, and the diameter of the through hole on the cylinder is larger than the diameter of the ultrafine powder being transported. Then, because the filter plate is blocked by the cylinder, there is no need to worry about the wear of the auger on it, and a filter plate with a smaller aperture made of a material with lower strength can be selected, which can reduce the problem of the ultrafine powder being transported entering the filter plate and causing blockage, thereby increasing its service life. In addition, even if the filter plate is blocked and affects its use, the sealing cover can be opened during maintenance, and the filter plate can be taken out and replaced through the opening, which is very convenient and reduces the difficulty and time of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0042] Figure 2 It is a right side structural schematic diagram of the utility model;

[0043] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0044] Figure 4 For this utility model Figure 1 Schematic diagram of the AA section structure;

[0045] Figure 5 For this utility model Figure 4 Middle C is a schematic diagram of the partially enlarged structure;

[0046] Figure 6 For this utility model Figure 2 Schematic diagram of the BB cross-section structure;

[0047] Figure 7 For this utility model Figure 6 Middle D is a schematic diagram of the partially enlarged structure;

[0048] Figure 8 For this utility model Figure 6 Middle E is a schematic diagram of a partially enlarged structure;

[0049] Fig. 9 This is a schematic diagram of the main structure of the pressure plate cover of the utility model;

[0050] Fig.10 This is a schematic diagram of the structure of the pressure plate cover from the right side of the utility model;

[0051] In the figure: 1-cavity, 11-opening, 12-sealing cover, 2-cylinder, 21-opening area, 31-filter plate, 32-pressure plate cover, 321-top plate, 322-pressure plate, 323-recess, 33-tightening member, 34-orifice plate, 41-exhaust port, 42-exhaust pipe, 5-sealing member, 61-sealing gasket, 62-sealing nut, 71-flange. DETAILED DESCRIPTION

[0052] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] like Figure 1-10 As shown, the utility model provides a box for a degassing spiral, comprising:

[0054] The cavity 1 has an opening 11,

[0055] The sealing cover 12 is detachably mounted on the cavity 1 and is used to seal the opening 11.

[0056] The cylinder 2 is arranged in the cavity 1. Both ends of the cylinder 2 penetrate the cavity wall of the cavity 1. The side wall of the cylinder 2 has a plurality of opening areas 21 around its circumference. The side wall of the opening area 21 of the cylinder 2 has a plurality of through holes.

[0057] The filter plate 31 is disposed in the cavity 1, and the filter plate 31 is used to cover the outside of the opening area 21 of the cylinder 2.

[0058] The cavity 1 also has an air extraction port 41 , and the air extraction port 41 is used to install an air extraction pipeline 42 .

[0059] In this embodiment, Figure 4 As shown, the cavity 1 is provided with an opening 11, through which the filter plate 31 can be placed in the cavity 1, and then the filter plate 31 is covered on the opening area 21 with a through hole wrapped on the side wall of the cylinder 2, and the opening 11 is sealed by the sealing cover 12, and the degassing function can be achieved by exhausting the air from the exhaust pipe 42, and the filter plate 31 can be covered outside the opening area 21 by magnetic attraction or by tightening with a top screw, and the cylinder 2 can be made of a metal material with higher strength, and the diameter of the through hole on the cylinder 2 is larger than the diameter of the ultrafine powder being transported, and then the filter plate 31 is blocked by the cylinder 2, so there is no need to worry about the wear of the auger on it, and a filter plate with a smaller pore size made of a material with lower strength can be selected, which can reduce the problem of the ultrafine powder being transported entering the filter plate 31 and causing blockage, thereby increasing its service life. In addition, even if the filter plate 31 is blocked and affects its use, the sealing cover 12 can be opened during maintenance, and the filter plate 31 can be taken out and replaced through the opening 11, which is very convenient and reduces the difficulty and time of maintenance.

[0060] Furthermore, it also includes,

[0061] The pressure plate cover 32 is used to press and fix the filter plate 31.

[0062] The pressing member 33 is arranged on the cavity 1 , and is used for pressing the pressure plate cover 32 .

[0063] In this embodiment, the filter plate 31 can be directly tightened and fixed by the tightening member 33. Furthermore, in order to tighten the filter plate 31 evenly and avoid damaging the filter plate 31, as shown in FIG. Figure 4 and Figure 5 As shown, the pressing plate cover 32 is pressed by the pressing member 33 , and the pressing plate cover 32 is pressed on the filter plate 31 , so that the filter plate 31 is fixed very conveniently.

[0064] Further, the platen cover 32 includes,

[0065] Top plate 321,

[0066] The pressing plate 322 is arranged on one side of the top plate 321. One side of the pressing plate 322 has a notch 323. The shape of the notch 323 is the same as the outer wall shape of the filter plate 31. The pressing plate 322 is used to press the outside of the filter plate 31.

[0067] A plurality of pressing plates 322 are arranged in parallel, and the pressing member 33 is used to press the top plate 321 .

[0068] In this embodiment, Figure 4 , Figure 6 , Fig. 9 , Fig.10 As shown, the top plate 321 is used to withstand the pressing pressure of the pressing member 33, and the multiple pressure plates 322 realize the pressing of the filter plate 31. The top plate 321 as a whole can evenly transmit the pressure to the multiple pressure plates 322, so as to ensure that the pressure on the filter plate 31 is more uniform as much as possible and improve the service life.

[0069] Furthermore, it also includes,

[0070] The sealing member 5 is arranged around the opening area 21 .

[0071] In this embodiment, a sealing member 5 is provided around the opening area 21 on the side wall of the cylinder 2. After the filter plate 31 is covered on the opening area 21, the sealing between the filter plate 31 and the non-porous area of ​​the cylinder 2 is ensured, preventing ultrafine powder from passing through the gap between the filter plate 31 and the side wall of the cylinder 2 and entering between the outer wall of the cylinder 2 and the inner wall of the cavity 1, thereby avoiding the possibility of being sucked away by gas, improving the stability of use, and avoiding waste.

[0072] Furthermore, there are two openings 11, which are located on both sides of the cylinder 2.

[0073] There are two opening areas 21, and the two opening areas 21 are respectively close to the two openings 11.

[0074] There are two filter plates 31 , and the two filter plates 31 are respectively covered on the two opening areas 21 .

[0075] In this embodiment, Figure 4 and Figure 6 As shown, the cavity 1 has two upper and lower openings 11, and each of the places near the two openings 11 has an opening area 21. In this way, when replacing the filter plate 31 on the opening area 21, the upper filter plate 31 can be replaced through the upper opening 11, or the lower filter plate 31 can be replaced through the lower opening 11 as needed. It is very convenient and easy to replace, reducing the difficulty and time of maintenance.

[0076] Furthermore, a tightening member 33 is provided on the sealing cover 12, and a threaded hole is provided on the sealing cover 12.

[0077] The pressing member 33 is a jack screw, and the pressing member 33 passes through the threaded hole. After the pressing member 33 rotates, one end of the pressing member 33 located in the cavity 1 presses against the pressure plate cover 32 .

[0078] In this embodiment, Figure 6 and Figure 8 As shown, the pressing plate cover 32 can be pressed tightly by the jackscrews arranged in the threaded holes, and then the filter plate 31 can be fixed.

[0079] Furthermore, it also includes,

[0080] The sealing gasket 61 is sleeved outside the top tightening member 33.

[0081] The sealing nut 62 is threadedly connected to the tightening member 33 . The sealing gasket 61 is located between the sealing cover 12 and the sealing nut 62 . When the sealing nut 62 is rotated, the sealing gasket 61 is tightened.

[0082] In this embodiment, Figure 8 As shown, the sealing nut 62 is covered on the top screw. After the sealing nut 62 is pressed against the sealing gasket 61, the gap between the end of the top screw outside the cavity 1 and the screw hole can be closed to improve the sealing performance.

[0083] Furthermore, it also includes,

[0084] The orifice plate 34 is disposed between the pressure plate cover 32 and the filter plate 31 .

[0085] In this embodiment, the orifice plate 34 is arranged between the pressure plate cover 32 and the filter plate 31. The orifice plate 34 is made of high-strength material and can fit completely with the filter plate 31. Then the pressure plate cover 32 presses the orifice plate 34 to apply a more uniform force to the filter plate 31, thereby preventing damage to the filter plate 31.

[0086] Furthermore, it also includes,

[0087] Flange 71: Flanges 71 are respectively provided at both ends of the cylinder 2.

[0088] In this embodiment, the flanges 71 at both ends of the cylinder 2 can facilitate the connection of front and rear pipelines.

[0089] Furthermore, the sealing member 5 is a sealing strip.

[0090] In this embodiment, the sealing member 5 is a sealing rubber strip, which can achieve good sealing.

[0091] Furthermore, an annular sealing groove is provided around the opening area 21 of the cylinder 2, and the annular sealing groove is used to install a sealing strip.

[0092] In this embodiment, the annular sealing groove around the opening area 21 of the cylinder 2 is used to set the sealing strip, which further improves the sealing performance and facilitates the installation and replacement of the sealing strip.

[0093] Furthermore, the number of openings 11 and the number of opening areas 21 are the same, and a plurality of opening areas 21 correspond to one opening 11 respectively.

[0094] The opening 11 is used to allow the filter plate 31 to enter the cavity 1 .

[0095] In this embodiment, each opening 11 corresponds to an opening area 21. If a filter plate 31 in an opening area 21 has a problem, the corresponding opening 11 can be opened to remove and replace the filter plate 31, which is very convenient.

[0096] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A box for a degassing spiral, characterized in that: include, The cavity (1) has an opening (11), a sealing cover (12) which is detachably arranged on the cavity (1) and is used to seal the opening (11); The cylinder (2) is arranged in the cavity (1), both ends of the cylinder (2) penetrate the cavity wall of the cavity (1), the side wall of the cylinder (2) has a plurality of opening areas (21) around its circumference, and the side wall of the opening area (21) of the cylinder (2) has a plurality of through holes, A filter plate (31) is arranged in the cavity (1), and the filter plate (31) is used to cover the outside of the opening area (21) of the cylinder (2). The cavity (1) also has an air extraction port (41), and the air extraction port (41) is used to install an air extraction pipeline (42).

2. A box for a degassing spiral according to claim 1, characterized in that: Also includes, A pressure plate cover (32) is used to press and fix the filter plate (31). A tightening member (33) is arranged on the cavity (1), and the tightening member (33) is used to tighten the pressure plate cover (32).

3. A box for a degassing spiral according to claim 2, characterized in that: The pressure plate cover (32) comprises: Top plate (321), A pressing plate (322) is arranged on one side of the top plate (321), one side of the pressing plate (322) having a notch (323), the shape of the notch (323) being the same as the shape of the outer wall of the filter plate (31), and the pressing plate (322) is used to press the outside of the filter plate (31). A plurality of the pressing plates (322) are arranged in parallel, and the pressing member (33) is used to press the top plate (321) tightly.

4. A casing for a degassing spiral according to claim 1, characterized in that: Also includes, The sealing member (5) is arranged around the opening area (21).

5. A casing for a degassing spiral according to claim 2, characterized in that: There are two openings (11), and the two openings (11) are respectively located on two sides of the cylinder (2). The opening areas (21) have two, and the two opening areas (21) are respectively close to the two openings (11). There are two filter plates (31), and the two filter plates (31) are respectively covered on the two opening areas (21).

6. A casing for a degassing spiral according to claim 5, characterized in that: The sealing cover (12) is provided with the pressing member (33), and the sealing cover (12) is provided with a threaded hole. The pressing member (33) is a pressing screw, and the pressing member (33) passes through the threaded hole. After the pressing member (33) rotates, one end of the pressing member (33) located in the cavity (1) presses against the pressure plate cover (32).

7. A casing for a degassing spiral according to claim 6, characterized in that: Also includes, The sealing gasket (61) is sleeved outside the tightening member (33). The sealing nut (62) is threadedly connected to the tightening member (33), and the sealing gasket (61) is located between the sealing cover (12) and the sealing nut (62). When the sealing nut (62) is rotated, it tightens the sealing gasket (61).

8. A casing for a degassing spiral according to claim 2, characterized in that: Also includes, A perforated plate (34) is arranged between the pressure plate cover (32) and the filter plate (31).

9. A casing for a degassing spiral according to claim 1, characterized in that: Also includes, Flanges (71), the flanges (71) being respectively provided at both ends of the cylinder (2).

10. A casing for a degassing spiral according to claim 1, characterized in that: The number of the openings (11) and the number of the opening areas (21) are the same, and a plurality of the opening areas (21) respectively correspond to one opening (11). The opening (11) is used to allow the filter plate (31) to enter the cavity (1).

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