CN115847906B - Extrusion molding head for spherical catalyst - Google Patents
Extrusion molding head for spherical catalyst Download PDFInfo
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- CN115847906B CN115847906B CN202211507642.1A CN202211507642A CN115847906B CN 115847906 B CN115847906 B CN 115847906B CN 202211507642 A CN202211507642 A CN 202211507642A CN 115847906 B CN115847906 B CN 115847906B
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- 238000001125 extrusion Methods 0.000 title claims abstract description 166
- 239000003054 catalyst Substances 0.000 title claims abstract description 26
- 230000001681 protective effect Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 6
- 230000007774 longterm Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
本发明公开了一种球形催化剂的挤出成型头，涉及催化剂加工技术领域，该球形催化剂的挤出成型头，包括第一挤出头和第二挤出头，所述第一挤出头的后侧固定连接有移动块，移动块的后侧顶部与底部均为倾斜面设置，移动块的顶部开设有凹槽，凹槽内设置有分离装置，通过向下移动移动杆进而有效的将限位块从限位槽内脱离，进而有效的使第一挤出头与第二挤出头完成分离工作，进一步提高了第一挤出头与第二挤出头的分离效率，进而使第一挤出头与第二挤出头内部的清洁工作更便于完成，使第一挤出头与第二挤出头内部的清理工作能够更加便捷的实现，有效的提高了整体装置的使用效果。
The invention discloses an extrusion molding head for a spherical catalyst, and relates to the technical field of catalyst processing. The extrusion molding head for the spherical catalyst comprises a first extrusion molding head and a second extrusion molding head. A moving block is fixedly connected to the rear side of the first extrusion molding head, and the top and bottom of the rear side of the moving block are both arranged with inclined surfaces. A groove is provided on the top of the moving block, and a separation device is arranged in the groove. By moving a moving rod downward, the limiting block is effectively separated from the limiting groove, and the first extrusion molding head and the second extrusion molding head are effectively separated, and the separation efficiency of the first extrusion molding head and the second extrusion molding head is further improved, so that the cleaning work inside the first extrusion molding head and the second extrusion molding head can be completed more conveniently, and the cleaning work inside the first extrusion molding head and the second extrusion molding head can be realized more conveniently, and the use effect of the overall device is effectively improved.
Description
Technical Field
The invention relates to the technical field of catalyst processing, in particular to an extrusion molding head of a spherical catalyst.
Background
The spherical catalyst (SPHERICAL CATALYST) is a chemical noun published in 2019, comes from the first edition of chemical noun (II) basic organic chemical industry handbook, defines a catalyst with a spherical appearance, can be prepared by methods of rotary granulation, oil-in-mold forming, mold pressing and the like, is generally 0.5-5 mm in diameter, and is suitable for fixed bed and moving bed reactors.
In the course of working of spherical catalyst, need use extrusion molding head to accomplish processing work to it, though current extrusion molding head can satisfy the processing user demand to spherical catalyst, but in extrusion molding head's long-term use, because the inside structural shape of extrusion molding head is comparatively complicated, and then can produce the condition of inconvenient clearance under the condition of clearing up extrusion molding head's inside, however current most extrusion molding head is all set up as an organic whole, can not separate extrusion molding head, and then more be convenient for clear up the inside of extrusion molding head and work, then can make extrusion molding head internal pile up more impurity in long-term use at this moment, and then influence the long-term result of use of whole device, make whole device in use produce certain drawback.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, and can solve the problems that the inside of an extrusion molding head is complex in structural shape and inconvenient to clean under the condition of cleaning the inside of the extrusion molding head, most of the extrusion molding heads are integrally arranged, the extrusion molding heads cannot be separated, the inside of the extrusion molding head is more convenient to clean, and more impurities are accumulated in the extrusion molding head during long-term use at the moment, so that the long-term use effect of the whole device is affected.
In order to achieve the above purpose, the present invention provides the following technical solutions: the extrusion molding head of the spherical catalyst comprises a first extrusion head and a second extrusion head, wherein a moving block is fixedly connected to the rear side of the first extrusion head, the top and the bottom of the rear side of the moving block are inclined surfaces, a groove is formed in the top of the moving block, and a separation device is arranged in the groove;
the separating device comprises a slide bar, the slide bar is fixedly connected in the groove, a limiting block is sleeved on the surface of the slide bar in a sliding manner, and the rear side of the top of the limiting block is provided with an inclined surface.
Preferably, the surface of the sliding rod is movably sleeved with a second spring, and two ends of the second spring are respectively and fixedly connected between the limiting block and the groove.
Preferably, two clamping grooves are formed in the front side of the second extrusion head, the structures in the two clamping grooves are the same, the moving block is in sliding connection with the inside of the clamping groove, the top wall of the clamping groove is provided with a limiting groove, and the limiting block is in sliding connection with the limiting groove.
Preferably, the top and the bottom of the second extrusion head are provided with through grooves, the structures in the two through grooves are the same, the through grooves are communicated with the limit grooves, and the movable rods are connected in the through grooves in a sliding manner.
Preferably, a chute is formed in the through groove, a connecting block is fixedly connected to the surface of the moving rod and is in sliding connection with the chute, and a first spring is fixedly connected between the connecting block and the chute.
Preferably, the left sides of the first extrusion head and the second extrusion head are provided with protective covers, square grooves are formed in the left sides of the first extrusion head and the second extrusion head, structures in the two square grooves are identical, channels are formed in the front sides of the square grooves, two connecting rods are fixedly connected to the right sides of the protective covers, and structures on the two connecting rods are identical.
Preferably, the connecting groove has been seted up to the front side of connecting rod, and the inside fixedly connected with round bar of connecting groove, the surface activity of round bar has cup jointed the fixture block, and the left side and the right side of fixture block are the inclined plane setting, and the inclination that the fixture block right side was inclined is greater than the inclination that the left side was inclined, and the surface activity of round bar has cup jointed the third spring, and the both ends of third spring are fixed connection respectively between fixture block and connecting groove.
Preferably, the fixture block is in sliding connection in the passageway, and the connecting rod is in sliding connection in the square groove, and inside all sliding connection has the push pedal around first extrusion head and the second extrusion head, and one side that the push pedal is close to first extrusion head and second extrusion head surface is the inclined plane setting, all fixedly connected with fourth spring between two push pedals and the inside of first extrusion head and second extrusion head.
Compared with the prior art, the invention has the beneficial effects that:
(1) This spherical catalyst's extrusion molding head breaks away from the stopper from the spacing inslot through the downwardly moving movable rod and then effectually, and then effectually makes first extrusion head and second extrusion head accomplish the separation work, has further improved the separation efficiency of first extrusion head and second extrusion head, and then makes first extrusion head and the inside clean work of second extrusion head more be convenient for accomplish, makes first extrusion head and the inside realization that the clearance work of second extrusion head can be more convenient, the effectual result of use who improves whole device.
(2) The extrusion molding head of the spherical catalyst is characterized in that the top and the bottom of the rear side of the moving block are inclined surfaces, so that the moving block can be more smooth when entering the clamping groove, the efficiency of the moving block entering the clamping groove is further improved, and the running stability of the whole device is further improved.
(3) The extrusion molding head of this spherical catalyst, because the top rear side of stopper sets up for the inclined plane, and then can be more smooth promote the stopper when first extrusion head and second extrusion head are installed and enter into the inside of recess, later reset under the elasticity effect of second spring, the mutual blocking between stopper and the spacing groove is retrieved more smoothly, and then the effectual smoothness nature in the operation of improving whole device.
(4) The extrusion molding head of the spherical catalyst finally enables the protective cover to complete blocking work under the condition that the first extrusion head and the second extrusion head are not used by moving the protective cover rightwards, so that the phenomena that the first extrusion head and the second extrusion head enter internal dust and the like when not used are effectively prevented, and the stability of the whole device in use is further improved.
(5) The extrusion molding head of this spherical catalyst, because the left side and the right side of fixture block are the inclined plane setting, can be smooth when the fixture block follows the connecting rod and remove this moment receive the blockking of square groove, later enter into the inside of spread groove, make the connecting rod more alright smooth enter into the square inslot, and then effectually improved the smooth nature of whole device in operation, avoided producing the phenomenon of card dun.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of the structure of an extrusion head of a spherical catalyst according to the present invention;
FIG. 2 is a left side view of the interior of a second extrusion head of the present invention;
FIG. 3 is a schematic view of a travel bar of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 2A in accordance with the present invention;
FIG. 5 is a top view of the interior of a first extrusion head of the present invention;
Fig. 6 is a schematic view of the new push plate.
Reference numerals: 1. a first extrusion head; 2. a second extrusion head; 3. a moving rod; 4. a connecting block; 5. a first spring; 6. a moving block; 7. a clamping groove; 8. a groove; 9. a slide bar; 10. a second spring; 11. a limiting block; 12. a limit groove; 13. a through groove; 14. a chute; 15. a protective cover; 16. a connecting rod; 17. a connecting groove; 18. a round bar; 19. a clamping block; 20. a third spring; 21. a channel; 22. a square groove; 23. a push plate; 24. and a fourth spring.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an extrusion head of spherical catalyst, including first extrusion head 1 and second extrusion head 2, the rear side fixedly connected with movable block 6 of first extrusion head 1, the rear side top and the bottom of movable block 6 are the inclined plane setting, recess 8 has been seted up at the top of movable block 6, fixedly connected with slide bar 9 in the recess 8, stopper 11 has been cup jointed in the surface slip of slide bar 9, stopper 11 slides from top to bottom in recess 8, the top rear side of stopper 11 is the inclined plane setting, second spring 10 has been cup jointed in the surface activity of slide bar 9, the both ends of second spring 10 are fixed connection respectively between stopper 11 and recess 8.
Two draw-in grooves 7 have been seted up to the front side of second extrusion head 2, and the structure in two draw-in grooves 7 is the same, and movable block 6 is at the inside sliding connection of draw-in groove 7, and movable block 6 slides back and forth in draw-in groove 7, and spacing groove 12 has been seted up to the roof of draw-in groove 7, and stopper 11 sliding connection in spacing groove 12, stopper 11 slide from top to bottom in spacing groove 12.
In the initial state, under the action of the elastic force of the second spring 10, the limiting block 11 protrudes out of the groove 8, at this time, the limiting block 11 is located in the limiting groove 12, and at this time, the limiting block 11 and the limiting groove 12 are blocked mutually.
The top and the bottom of second extrusion head 2 all have seted up logical groove 13, and the structure in two logical grooves 13 is the same, and logical groove 13 is linked together with spacing groove 12, and logical inslot 13 sliding connection has movable rod 3, and movable rod 3 slides from top to bottom in logical groove 13, has seted up spout 14 in logical groove 13, and movable rod 3's fixed surface is connected with connecting block 4, and connecting block 4 slides in spout 14 and connects, and connecting block 4 slides from top to bottom in spout 14, fixedly connected with first spring 5 between connecting block 4 and the spout 14.
In the initial state, under the action of the elasticity of the first spring 5, the movable rod 3 does not apply force to the limiting block 11, when the spherical catalyst is processed, the first extrusion head 1 and the second extrusion head 2 are in an installation state, when the inside of the first extrusion head 1 and the inside of the second extrusion head 2 need to be cleaned, the first extrusion head 1 and the second extrusion head 2 need to be separated, the movable rod 3 needs to be moved downwards, the movable rod 3 moves downwards to drive the connecting block 4 to move downwards, the connecting block 4 moves downwards to start compressing the first spring 5, the movable rod 3 moves downwards to start pushing the limiting block 11, the limiting block 11 starts moving into the groove 8 after being pushed by the movable rod 3, meanwhile, the limiting block 11 moves inwards to start compressing the second spring 10 towards the groove 8, the limiting block 11 does not block each other at the moment, and separation work between the first extrusion head 1 and the second extrusion head 2 can be completed at the moment.
The limiting block 11 is separated from the limiting groove 12 through the downward moving rod 3, so that the first extrusion head 1 and the second extrusion head 2 are effectively separated, the separation efficiency of the first extrusion head 1 and the second extrusion head 2 is further improved, the cleaning operation of the first extrusion head 1 and the second extrusion head 2 is further facilitated, the cleaning operation of the first extrusion head 1 and the second extrusion head 2 can be realized more conveniently, and the use effect of the whole device is effectively improved.
After the inside clearance of first extrusion head 1 and second extrusion head 2 finishes, this moment needs to accomplish the processing work that resets first extrusion head 1 and second extrusion head 2 and continue to accomplish spherical catalyst with second extrusion head 2, this moment is aimed at movable block 6 behind draw-in groove 7 relative movement first extrusion head 1 and second extrusion head 2, movable block 6 removes and drives stopper 11 and remove, stopper 11 receives the stopper of second extrusion head 2 front side this moment, stopper 11 begins to remove and compress second spring 10 in recess 8, after movable block 6 fully gets into draw-in groove 7, stopper 11 is not receiving the stopper this moment, stopper 11 resets under the elasticity effect of second spring 10 and enters into the inside of spacing groove 12, stopper 11 resumes and stops each other with spacing groove 12 this moment, this moment smoothly accomplish the installation work of first extrusion head 1 and second extrusion head 2.
Because the rear side top and the bottom of movable block 6 are the inclined plane setting, and then can be more smooth when movable block 6 enters into draw-in groove 7, further improved movable block 6 and get into the efficiency in the draw-in groove 7, and then more be convenient for improve the stability of whole device operation.
Because the top rear side of stopper 11 sets up for the inclined plane, and then can more smooth promotion stopper 11 enter into recess 8's inside when first extrusion head 1 and second extrusion head 2 are installed, later resumes under the elasticity effect of second spring 10, more smooth resume stopper 11 and spacing groove 12 between the mutual blocking, and then the effectual smoothness nature that improves in the whole device operation.
The left sides of the first extrusion head 1 and the second extrusion head 2 are provided with a protective cover 15, the protective cover 15 has a protective effect on the left sides of the first extrusion head 1 and the second extrusion head 2, square grooves 22 are formed in the left sides of the first extrusion head 1 and the second extrusion head 2, structures in the two square grooves 22 are identical, a channel 211 is formed in the front side of the square groove 22, two connecting rods 16 are fixedly connected to the right side of the protective cover 15, and structures on the two connecting rods 16 are identical.
The front side of connecting rod 16 has seted up spread groove 17, the inside fixedly connected with round bar 18 of spread groove 17, the surface activity of round bar 18 has cup jointed fixture block 19, the left side and the right side of fixture block 19 are the inclined plane setting, the inclination that the fixture block 19 right side was inclined is greater than the inclination that the left side was inclined, the surface activity of round bar 18 has cup jointed third spring 20, the both ends of third spring 20 are fixed connection respectively between fixture block 19 and spread groove 17, fixture block 19 is in passageway 21 sliding connection, connecting rod 16 is in square groove 22 sliding connection, the inside all sliding connection has push pedal 23 around first extrusion head 1 and the second extrusion head 2, one side that push pedal 23 is close to first extrusion head 1 and second extrusion head 2 surface is the inclined plane setting, all fixedly connected with fourth spring 24 between two push pedal 23 and the inside of first extrusion head 1 and second extrusion head 2.
When the first extrusion head 1 and the second extrusion head 2 are not used, the protection cover 15 is required to block the left openings of the first extrusion head 1 and the second extrusion head 2, the connecting rod 16 on the protection cover 15 is aligned with the square groove 22, then the protection cover 15 is moved rightwards, the protection cover 15 moves rightwards to drive the connecting rod 16 to move rightwards, the clamping block 19 protrudes out of the inside of the connecting groove 17 under the elastic force of the third spring 20 in an initial state, at the moment, the clamping block 19 can be smoothly blocked by the square groove 22 when the clamping block 19 moves along with the connecting rod 16, at the moment, the clamping block 19 starts to move into the connecting groove 17 and compress the third spring 20, after the connecting rod 16 fully enters the square groove 22, at the moment, the clamping block 19 is not blocked, the clamping block 19 moves to reset and enters the inside of the channel 211 under the elastic force of the third spring 20, and at the moment, the protection cover 15 completes the installation work.
The protective cover 15 is finally enabled to complete the blocking work under the condition that the first extrusion head 1 and the second extrusion head 2 are not used by moving the protective cover 15 to the right, so that the phenomena that the first extrusion head 1 and the second extrusion head 2 enter internal dust and the like when not used are effectively prevented, and the stability of the whole device in use is further improved.
Because the left side and the right side of fixture block 19 are the inclined plane setting, can be smooth when fixture block 19 follows connecting rod 16 and remove this moment and receive square groove 22's the stopper, later enter into the inside of spread groove 17, make connecting rod 16 more abate smooth enter into square groove 22 in, and then effectually improved the smoothness nature of whole device in operation, avoid producing the phenomenon of card dun.
In the initial state, under the elastic force of the fourth spring 24, the push plate 23 does not apply force to the clamping block 19, when the first extrusion head 1 and the second extrusion head 2 are required to be used, the push plate 23 is moved, the push plate 23 starts to stretch the fourth spring 24, the push plate 23 starts to push the right inclined angle of the clamping block 19, the clamping block 19 starts to move towards the connecting groove 17, the left inclined angle of the clamping block 19 is positioned between the channel 211 and the square groove 22 under the pushing of the push plate 23, the protective cover 15 moves leftwards at this moment, the protective cover 15 finally drives the clamping block 19 to move leftwards smoothly, and then the protective cover 15 can be separated from the left sides of the first extrusion head 1 and the second extrusion head 2 smoothly, so that the protective cover 15 is detached, and the first extrusion head 1 and the second extrusion head 2 can be used conveniently.
Working principle: in the initial state, under the action of the elasticity of the first spring 5, the movable rod 3 does not apply force to the limiting block 11, when the spherical catalyst is processed, the first extrusion head 1 and the second extrusion head 2 are in an installation state, when the inside of the first extrusion head 1 and the inside of the second extrusion head 2 need to be cleaned, the first extrusion head 1 and the second extrusion head 2 need to be separated, the movable rod 3 needs to be moved downwards, the movable rod 3 moves downwards to drive the connecting block 4 to move downwards, the connecting block 4 moves downwards to start compressing the first spring 5, the movable rod 3 moves downwards to start pushing the limiting block 11, the limiting block 11 starts moving into the groove 8 after being pushed by the movable rod 3, meanwhile, the limiting block 11 moves inwards to start compressing the second spring 10 towards the groove 8, the limiting block 11 does not block each other at the moment, and separation work between the first extrusion head 1 and the second extrusion head 2 can be completed at the moment.
After the inside clearance of first extrusion head 1 and second extrusion head 2 finishes, this moment needs to accomplish the processing work that resets first extrusion head 1 and second extrusion head 2 and continue to accomplish spherical catalyst with second extrusion head 2, this moment is aimed at movable block 6 behind draw-in groove 7 relative movement first extrusion head 1 and second extrusion head 2, movable block 6 removes and drives stopper 11 and remove, stopper 11 receives the stopper of second extrusion head 2 front side this moment, stopper 11 begins to remove and compress second spring 10 in recess 8, after movable block 6 fully gets into draw-in groove 7, stopper 11 is not receiving the stopper this moment, stopper 11 resets under the elasticity effect of second spring 10 and enters into the inside of spacing groove 12, stopper 11 resumes and stops each other with spacing groove 12 this moment, this moment smoothly accomplish the installation work of first extrusion head 1 and second extrusion head 2.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (2)
1. An extrusion head for spherical catalysts, comprising a first extrusion head (1) and a second extrusion head (2), characterized in that: the rear side of the first extrusion head (1) is fixedly connected with a moving block (6), the top and the bottom of the rear side of the moving block (6) are both inclined surfaces, a groove (8) is formed in the top of the moving block (6), and a separating device is arranged in the groove (8);
The separating device comprises a slide bar (9), the slide bar (9) is fixedly connected in the groove (8), a limiting block (11) is sleeved on the surface of the slide bar (9) in a sliding manner, and the rear side of the top of the limiting block (11) is provided with an inclined surface;
the surface of the sliding rod (9) is movably sleeved with a second spring (10), and two ends of the second spring (10) are respectively and fixedly connected between the limiting block (11) and the groove (8);
Two clamping grooves (7) are formed in the front side of the second extrusion head (2), the structures in the two clamping grooves (7) are the same, the moving block (6) is connected in a sliding mode in the clamping groove (7), a limiting groove (12) is formed in the top wall of the clamping groove (7), and a limiting block (11) is connected in a sliding mode in the limiting groove (12);
the top and the bottom of the second extrusion head (2) are respectively provided with a through groove (13), the structures in the two through grooves (13) are the same, the through grooves (13) are communicated with the limit grooves (12), and the through grooves (13) are internally connected with the movable rod (3) in a sliding way;
the left sides of the first extrusion head (1) and the second extrusion head (2) are provided with protective covers (15), square grooves (22) are formed in the left sides of the first extrusion head (1) and the second extrusion head (2), the structures in the two square grooves (22) are identical, a channel (21) is formed in the front side of the square groove (22), two connecting rods (16) are fixedly connected to the right side of the protective cover (15), and the structures on the two connecting rods (16) are identical;
The front side of the connecting rod (16) is provided with a connecting groove (17), the inside of the connecting groove (17) is fixedly connected with a round rod (18), the surface of the round rod (18) is movably sleeved with a clamping block (19), the left side and the right side of the clamping block (19) are both inclined surfaces, the inclination angle of the right side of the clamping block (19) is larger than that of the left side, the surface of the round rod (18) is movably sleeved with a third spring (20), and two ends of the third spring (20) are respectively and fixedly connected between the clamping block (19) and the connecting groove (17);
The fixture block (19) is in sliding connection in the passageway (21), and connecting rod (16) is in sliding connection in square groove (22), and inside all sliding connection has push pedal (23) around first extrusion head (1) and second extrusion head (2), and one side that push pedal (23) is close to first extrusion head (1) and second extrusion head (2) surface is the inclined plane setting, all fixedly connected with fourth spring (24) between the inside of two push pedal (23) and first extrusion head (1) and second extrusion head (2).
2. An extrusion head for a spherical catalyst according to claim 1, wherein: a chute (14) is formed in the through groove (13), a connecting block (4) is fixedly connected to the surface of the movable rod (3), the connecting block (4) is connected in a sliding mode in the chute (14), and a first spring (5) is fixedly connected between the connecting block (4) and the chute (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211507642.1A CN115847906B (en) | 2022-11-29 | 2022-11-29 | Extrusion molding head for spherical catalyst |
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| CN202211507642.1A CN115847906B (en) | 2022-11-29 | 2022-11-29 | Extrusion molding head for spherical catalyst |
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| CN115847906B true CN115847906B (en) | 2024-11-22 |
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| CN217213426U (en) * | 2022-05-18 | 2022-08-16 | 华永康实业(深圳)有限公司 | Projector equipment |
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| EP0678371A1 (en) * | 1994-04-23 | 1995-10-25 | SIMPLAS S.p.A. | A system to fasten together the bodies of an extrusion head |
| CN208855055U (en) * | 2018-09-22 | 2019-05-14 | 株洲利华硬质合金有限公司 | A kind of 3D printer carboloy nozzle |
| CN113346445A (en) * | 2021-06-16 | 2021-09-03 | 国网河南省电力公司宝丰县供电公司 | High-voltage cable joint protection device and method |
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