CN110547320A - Fish scaling roller device and method based on horizontal multi-stage roller scaling equipment - Google Patents
Fish scaling roller device and method based on horizontal multi-stage roller scaling equipment Download PDFInfo
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- CN110547320A CN110547320A CN201910958110.1A CN201910958110A CN110547320A CN 110547320 A CN110547320 A CN 110547320A CN 201910958110 A CN201910958110 A CN 201910958110A CN 110547320 A CN110547320 A CN 110547320A
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
- A22C25/02—Washing or descaling fish
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Abstract
The invention relates to a fish descaling roller device based on horizontal multi-stage roller descaling equipment, wherein a roller framework is a plurality of rod-shaped or tubular sections which are equal in length and are arranged along a circumference; the scale through hole on the wall of the drum body is larger than the maximum external dimension of the fish scale; the band-shaped helical blade is arranged on the inner wall of the roller barrel and is provided with a plurality of helical leads around the central axis, a plurality of scale removing structures are arranged on the band-shaped helical blade and are arranged on the surfaces of the two sides of the whole lead length of the band-shaped helical blade, each scale removing structure is arranged and fastened on the central axis in a way that the length direction of the strip shape of the scale removing structure is intersected with the central axis, the band-shaped helical blade, the scale removing structure A, the scale removing structure B and the barrel wall of the roller barrel form a fish passing helical channel similar to a dome-shaped tunnel, the fish passing helical channel is in a continuously rising spiral shape around the central axis, and fish bodies continuously move forwards and pass through the fish passing helical channel according to a snake-shaped moving path.
Description
Technical Field
The invention relates to a fish processing scale removing device, in particular to a fish scale removing roller device and method based on a horizontal multi-stage roller scale removing device.
Background
The drum-type descaling equipment is divided into three modes of vertical rotation, inclined rotation and horizontal rotation.
The domestic and foreign research and the existing scale removing equipment have low scale removing efficiency and scale removing rate for fish processing, and the production efficiency is low.
Chinese patent document with publication number CN103283806A, publication date 2013, 9 and 11 discloses a horizontal multi-stage roller descaling device for processing bulk freshwater fish and a descaling method thereof, the descaling device can continuously process fish products and improve production efficiency, but no residue-free removal research is carried out on fish scales on the belly and back of a fish body, the descaling effect still needs to be improved, and the technical method also needs to be improved.
Disclosure of Invention
The invention aims to provide a fish descaling roller device and a fish descaling roller method based on horizontal multi-stage roller descaling equipment, which can remove scales on the belly and back regions in a targeted manner, particularly can effectively remove harder and fine scales which are difficult to remove in the belly region close to the chin region of (similar) tilapia, such as side flat type fish, can not generate more damage to fish bodies which almost have been completely removed from two side surfaces in the prior processing process, and can further improve the descaling rate and cleanliness of processed fish bodies.
The invention adopts the following technical scheme:
A fish descaling roller device based on horizontal multi-stage roller descaling equipment comprises a cylindrical roller device 1, wherein the front end of the cylindrical roller device 1 is connected with a front material pushing device 2, and the rear end of the cylindrical roller device is connected with a rear material guiding device 3; the tail end of the post-storage material guiding device 3 is provided with a discharging and collecting device 4; a central shaft spray water pipe 7 is arranged at the central part of the cylindrical roller device 1, and the central shaft spray water pipe 7 is fixed on the frame 6 through a supporting bearing at the end part of the central shaft; the speed reducing motor driving device 9 drives the cylindrical roller device 1 to rotate through the chain transmission mechanism 8; the water lubrication supporting bearing group 5 is a supporting structure of the fish scaling drum device; a fish scale deposition groove 10 is arranged below the cylindrical roller device 1; the cylindrical roller device 1 comprises a roller framework 1.1, a flange plate 1.2, a roller barrel 1.3, a strip-shaped helical blade 1.4 and a scale removing structure 1.5, and the cylindrical roller device 1 is connected with the front material pushing device 2 and the rear material guiding device 3 through the flange plates 1.2 at the two ends of the cylindrical roller device 1; the roller frame 1.1 is a plurality of rod-shaped or tubular sections which are equal in length and are arranged along a circumference, and the roller frame 1.1 and the flange plates 1.2 at two ends are fixedly connected to form a grid-shaped columnar body; the drum body 1.3 is a cylindrical round drum body surrounded by a thin-wall punching plate, two ends of the drum body are respectively welded with the flange plate 1.2, and the size of a scale through hole on the drum wall of the drum body 1.3 is larger than the maximum appearance size of a fish scale; the belt-shaped helical blade 1.4 is arranged on the inner wall of the roller barrel 1.3 and is arranged in a plurality of helical leads around the central axis, the height of the belt-shaped helical blade 1.4 is greater than the height and thickness of a processed fish body, a plurality of descaled structures 1.5 are arranged on the belt-shaped helical blade 1.4, the descaled structures 1.5 are arranged on the two side surfaces of the whole lead length of the belt-shaped helical blade 1.4, each descaled structure 1.5 is arranged and tightly mounted on the central axis in the direction of the length of the strip shape, a descaled structure A1.5.1 is arranged on the thrust side of the belt-shaped helical blade 1.4, a descaled structure B1.5.2 is arranged on the non-thrust side of the belt-shaped helical blade 1.4, the brush hair sides of the descaled structures A1.5.1 and the descaled structures B1.5.2 are arranged opposite to or at intervals, and the descaled structures A1.5.1 and the descaled structures B1.5.2 are arranged opposite to or staggered on the back of the belt-shaped helical blade 1.4, the ribbon-shaped helical blade 1.4, the scale removing structure A1.5.1, the scale removing structure B1.5.2 and the wall of the roller barrel 1.3 enclose a fish passing helical channel similar to a dome-shaped tunnel, the fish passing helical channel is in a continuously ascending helical shape around the central axis, and the fish body continuously moves forwards and passes through in a serpentine motion path in the fish passing helical channel in a side lying and non-overlapping mode; the scale removing structure 1.5 is one or more of a rectangular strip-shaped scale removing hairbrush, a scale removing scraper, a tooth-shaped scraper and an abrasive convex panel, and the scale removing structure 1.5 is used for manufacturing a cross section curve forming a profiling fish belly and a fish back in the length direction of the strip-shaped strip; the central shaft spray header 7 is connected with a water supply system, and a plurality of spray heads in threaded connection or a plurality of small holes are directly manufactured on the central shaft spray header for supplying running water for direct spraying.
Preferably, the system also comprises a frequency converter, an electric cabinet, a fish scale strainer and a circulating water treatment device system; the discharging and collecting device 4 is arranged below and behind the rear material guiding device 3 and is connected with subsequent processing equipment; the brush hair of the descaling hairbrush is vertically manufactured on a rectangular plate surface, or the descaling hairbrush is directly manufactured on the belt-shaped spiral blade 1.4, the single surface or the double surfaces of the brush hair are manufactured on the surface of the whole blade, or the brush hair is arranged at intervals in a strip shape, the manufactured brush hair is equal in length or unequal in length or one long surface and one short surface, the brush hair is made of nylon wire material or rustless metal wire material or alloy material, the brush hair is matched with the fish variety to be descaled and has proper hardness, the descaling scraper and the tooth-shaped scraper are both assemblies of sheet-shaped structures with various blade shapes, and the descaling scraper and the tooth-shaped scraper are both made of rustless materials and are rigid or have certain elasticity; the fish scale deposition tank 10 is arranged at the lower part of the fish scale removing roller device, and is matched with a fish scale strainer and a circulating water treatment device system, and the fish scale removing roller device is provided with a safety protective housing.
Preferably, the drum body 1.3 is a grid-shaped drum body formed by a plurality of long bars with equal length and protruding bar-shaped rib edges on the surface, on a circumference, the long bars are specially-made bars with rib edges or full-round threaded steel bars and semi-round threaded steel bars with rib edges, long rectangular gaps are formed between the long bars, and the distance between the long bars is far greater than the maximum overall dimension of the fish scale and far smaller than the overall dimension of the fish body.
preferably, the cross section of the descaling roller is circular or polygonal with 5-10 sides.
After being descaled by a first-stage descaling roller and a second-stage descaling roller of the horizontal multi-stage roller descaling device, the fish bodies after being descaled are fed into the cylindrical roller device 1 through the preposed material pushing device 2, most of the fish bodies continuously move forwards and pass through the fish passing spiral channel similar to the dome-shaped tunnel in a side lying and non-overlapping mode according to a snake-shaped moving path, and the fish bodies in the fish passing spiral channel similar to the tunnel mainly play a role in effectively scraping fish scales through high-frequency contact friction between the descaling structure 1.5 and the belly and back of the fish bodies.
preferably, the scale removing structure 1.5 is divided into a flexible structure and a rigid structure, the flexible scale removing structure is one or more of a hairbrush, a nylon wire brush, a stainless wire brush and a sand coating brush with protruding particles distributed on the surface, and the rigid scale removing structure is one or more of a scale removing scraper and a tooth-shaped scraper.
The invention has the beneficial effects that:
1) can effectively remove (similar) hard and fine fish scales which are most difficult to remove in the fish belly area close to the fish chin area of the tilapia, namely the fish of the side flat type variety;
2) The scale removing rate and the cleanliness of the processed fish body can be further improved.
3) for the fish body processing of the horizontal multi-stage roller descaling equipment, the integral descaling effect is better, and the damage to the fish body is less and slight;
4) The mechanical automation degree is high, the production efficiency is high, the labor is saved, and the labor intensity is reduced;
5) Has wide popularization and application prospect.
Drawings
FIG. 1 is a schematic view showing the structure of a descaling-roller device of a horizontal multi-stage roller descaling apparatus for fish.
FIG. 2 is a schematic view of a portion of a cylindrical drum device with built-in ribbon-like helical blades and scale removing structures.
fig. 3 is a left sectional view of the cylindrical drum device.
fig. 4 is a schematic view of the structure of the tunnel-shaped fish-passing spiral passage of the cylindrical roller device.
Fig. 5 is a schematic diagram of the moving path of the fish body shown in the development of the tunnel-shaped fish-passing spiral passage of the cylindrical roller device.
The device comprises a cylindrical roller device 1, a roller framework 1.1, a roller framework 1.2, a flange plate 1.3, a roller barrel 1.4, a belt-shaped helical blade 1.5, a descaling structure object 2, a front object material pushing device 3, a rear object material guiding device 4, a discharge material collecting and conveying device 5, a water lubricating support bearing group 6, a rack 7, a central shaft spray water pipe 8, a chain transmission mechanism 9, a speed reducing motor driving device 10 and a fish scale deposition groove.
Detailed Description
the invention is further described with reference to the following figures and specific examples.
Referring to fig. 1-5, a fish descaling roller device based on horizontal multi-stage roller descaling equipment comprises a cylindrical roller device 1, wherein the front end of the cylindrical roller device 1 is connected with a front material pushing device 2, and the rear end of the cylindrical roller device is connected with a rear material guiding device 3; the tail end of the post-storage material guiding device 3 is provided with a discharging and collecting device 4; a central shaft spray water pipe 7 is arranged at the central part of the cylindrical roller device 1, and the central shaft spray water pipe 7 is fixed on the frame 6 through a supporting bearing at the end part of the central shaft; the speed reducing motor driving device 9 drives the cylindrical roller device 1 to rotate through the chain transmission mechanism 8; the water lubrication supporting bearing group 5 is a supporting structure of the fish scaling drum device; a fish scale deposition groove 10 is arranged below the cylindrical roller device 1; the cylindrical roller device 1 comprises a roller framework 1.1, a flange plate 1.2, a roller barrel 1.3, a strip-shaped helical blade 1.4 and a scale removing structure 1.5, and the cylindrical roller device 1 is connected with the front material pushing device 2 and the rear material guiding device 3 through the flange plates 1.2 at the two ends of the cylindrical roller device 1; the roller frame 1.1 is a plurality of rod-shaped or tubular sections which are equal in length and are arranged along a circumference, and the roller frame 1.1 and the flange plates 1.2 at two ends are fixedly connected to form a grid-shaped columnar body; the drum body 1.3 is a cylindrical round drum body surrounded by a thin-wall punching plate, two ends of the drum body are respectively welded with the flange plate 1.2, and the size of a scale through hole on the drum wall of the drum body 1.3 is larger than the maximum appearance size of a fish scale; the belt-shaped helical blade 1.4 is arranged on the inner wall of the roller barrel 1.3 and is arranged in a plurality of helical leads around the central axis, the height of the belt-shaped helical blade 1.4 is greater than the height and thickness of a processed fish body, a plurality of descaled structures 1.5 are arranged on the belt-shaped helical blade 1.4, the descaled structures 1.5 are arranged on the two side surfaces of the whole lead length of the belt-shaped helical blade 1.4, each descaled structure 1.5 is arranged and tightly mounted on the central axis in the direction of the length of the strip shape, a descaled structure A1.5.1 is arranged on the thrust side of the belt-shaped helical blade 1.4, a descaled structure B1.5.2 is arranged on the non-thrust side of the belt-shaped helical blade 1.4, the brush hair sides of the descaled structures A1.5.1 and the descaled structures B1.5.2 are arranged opposite to or at intervals, and the descaled structures A1.5.1 and the descaled structures B1.5.2 are arranged opposite to or staggered on the back of the belt-shaped helical blade 1.4, the ribbon-shaped helical blade 1.4, the scale removing structure A1.5.1, the scale removing structure B1.5.2 and the wall of the roller barrel 1.3 enclose a fish passing helical channel similar to a dome-shaped tunnel, the fish passing helical channel is in a continuously ascending helical shape around the central axis, and the fish body continuously moves forwards and passes through in a serpentine motion path in the fish passing helical channel in a side lying and non-overlapping mode; the scale removing structure 1.5 is one or more of a rectangular strip-shaped scale removing hairbrush, a scale removing scraper, a tooth-shaped scraper and an abrasive convex panel, and the scale removing structure 1.5 is used for manufacturing a cross section curve forming a profiling fish belly and a fish back in the length direction of the strip-shaped strip; the central shaft spray header 7 is connected with a water supply system, and a plurality of spray heads in threaded connection or a plurality of small holes are directly manufactured on the central shaft spray header for supplying running water for direct spraying.
In the embodiment, the device also comprises a frequency converter, an electric cabinet, a fish scale strainer and a circulating water treatment device system; the discharging and collecting device 4 is arranged below and behind the rear material guiding device 3 and is connected with subsequent processing equipment; the brush hair of the descaling hairbrush is vertically manufactured on a rectangular plate surface, or the descaling hairbrush is directly manufactured on the belt-shaped spiral blade 1.4, the single surface or the double surfaces of the brush hair are manufactured on the surface of the whole blade, or the brush hair is arranged at intervals in a strip shape, the manufactured brush hair is equal in length or unequal in length or one long surface and one short surface, the brush hair is made of nylon wire material or rustless metal wire material or alloy material, the brush hair is matched with the fish variety to be descaled and has proper hardness, the descaling scraper and the tooth-shaped scraper are both assemblies of sheet-shaped structures with various blade shapes, and the descaling scraper and the tooth-shaped scraper are both made of rustless materials and are rigid or have certain elasticity; the fish scale deposition tank 10 is arranged at the lower part of the fish scale removing roller device, and is matched with a fish scale strainer and a circulating water treatment device system, and the fish scale removing roller device is provided with a safety protective housing.
In this embodiment, referring to fig. 2, the drum 1.3 is a grid-like drum constructed by several pieces of long bars with protruding bar edges on the surface, which are of equal length, on a circumference, the long bars are specially made bars with bar edges, or full-circle threaded bars and semi-circle threaded bars with bar edges, and the long bars have long rectangular gaps between them, the distance between them is far larger than the maximum dimension of the fish scale and far smaller than the dimension of the fish body.
referring to fig. 3, the cross section of the descaling drum is circular or polygonal with 5-10 sides (not shown).
after being descaled by a first-stage descaling roller and a second-stage descaling roller of the horizontal multi-stage roller descaling device, the fish bodies after being descaled are fed into the cylindrical roller device 1 through the preposed material pushing device 2, most of the fish bodies continuously move forwards and pass through the fish passing spiral channel similar to the dome-shaped tunnel in a side lying and non-overlapping mode according to a snake-shaped moving path, and the fish bodies in the fish passing spiral channel similar to the tunnel mainly play a role in effectively scraping fish scales through high-frequency contact friction between the descaling structure 1.5 and the belly and back of the fish bodies.
In this embodiment, the descaler structure 1.5 is divided into a flexible descaler structure object and a rigid descaler structure object, wherein the flexible descaler structure object is one or more of a hairbrush, a nylon wire brush, a stainless wire brush and a sand coating brush with protruding particles distributed on the surface, and the rigid descaler structure object is one or more of a descaler blade and a toothed scraper blade.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a fish scale drum device based on horizontal multistage cylinder equipment of descaling which characterized in that:
the device comprises a cylindrical roller device (1), wherein the front end of the cylindrical roller device (1) is connected with a front object material pushing device (2), and the rear end of the cylindrical roller device is connected with a rear object material guiding device (3); the tail end of the post-storage material guiding device (3) is provided with a discharging and collecting device (4); a central shaft spray water pipe (7) is arranged at the central part of the cylindrical roller device (1), and the central shaft spray water pipe (7) is fixed on the rack (6) through a supporting bearing at the end part of the central shaft; the speed reducing motor driving device (9) drives the cylindrical roller device (1) to rotate through the chain transmission mechanism (8); the water lubrication supporting bearing group (5) is a supporting structure of the fish scaling roller device; a fish scale deposition groove (10) is arranged below the cylindrical roller device (1);
the cylindrical roller device (1) comprises a roller framework (1.1), a flange plate (1.2), a roller barrel body (1.3), a strip-shaped helical blade (1.4) and a descaling structure (1.5), and the cylindrical roller device (1) is connected with the front material pushing device (2) and the rear material guiding device (3) through the flange plates (1.2) at the two ends of the cylindrical roller device; the roller frame (1.1) is a plurality of rod-shaped or tubular sectional materials which are equal in length and are arranged along a circumference, and the roller frame (1.1) is fixedly connected with the flange plates (1.2) at two ends to form a grid-shaped columnar body; the drum body (1.3) is a cylindrical round drum body surrounded by a thin-wall punching plate, two ends of the cylindrical round drum body are respectively welded with the flange plate (1.2), and the size of a scale through hole on the drum wall of the drum body (1.3) is larger than the maximum overall size of fish scales; the belt-shaped spiral blade (1.4) is arranged on the inner wall of the roller barrel (1.3) and is provided with a plurality of spiral leads around the central axis, the height of the belt-shaped spiral blade (1.4) is greater than the height and the thickness of a processed fish body, a plurality of scale removing structures (1.5) are arranged on the belt-shaped spiral blade (1.4), the scale removing structures (1.5) are arranged on the two side surfaces of the whole lead length of the belt-shaped spiral blade (1.4), each scale removing structure (1.5) is arranged and fastened on the central axis in a way that the length direction of the strip shape of the scale removing structure intersects with the central axis, the scale removing structure A (1.5.1) is arranged on the thrust side of the belt-shaped spiral blade (1.4), the scale removing structure B (1.5.2) is arranged on the non-thrust side of the belt-shaped spiral blade (1.4), and the side of the scale removing structure A (1.5.1) and the side of the scale removing structure B (1.5.2) are arranged to face each other or are arranged at intervals, the fish passing spiral channel is characterized in that the scale removing structure A (1.5.1) and the scale removing structure B (1.5.2) are arranged on the strip-shaped spiral blade (1.4) in a back-to-back or staggered mode, the strip-shaped spiral blade (1.4), the scale removing structure A (1.5.1), the scale removing structure B (1.5.2) and the wall of the roller barrel (1.3) enclose a fish passing spiral channel similar to a dome-shaped tunnel, the fish passing spiral channel is in a spiral shape which rises continuously around a central axis, and a fish body continuously moves forwards and passes through in the fish passing spiral channel in a side lying and non-overlapping mode according to a snake-shaped moving path;
The descaling structure (1.5) is one or more of a rectangular strip-shaped descaling hairbrush, a descaling scraper, a tooth-shaped scraper and a grinding convex panel, and the descaling structure (1.5) is manufactured in the length direction of the strip-shaped descaling hairbrush to form a section curve of a profiling fish belly and a profiling fish back;
The central shaft spray header (7) is connected with a water supply system, and a plurality of spray heads in threaded connection or a plurality of small holes are directly manufactured on the central shaft spray header for supplying running water for direct spraying.
2. A fish scaling drum assembly based on a horizontal multistage drum scaling device as claimed in claim 1, wherein:
The device also comprises a frequency converter, an electric cabinet, a fish scale strainer and a circulating water treatment device system;
The discharging and collecting device (4) is arranged below and behind the rear material guiding device (3) and is connected with subsequent processing equipment;
The bristles of the scale removing brush are vertically manufactured on a rectangular plate surface, or the scale removing bristles are directly manufactured on the belt-shaped spiral blade (1.4), the bristles are manufactured on a single surface or two surfaces of the whole blade surface, or are arranged at intervals in a strip shape, the manufactured bristles are equal in length or unequal in length or are long on one surface and short on one surface, the bristles are made of nylon wire materials or rustless metal wire materials or alloy materials, the bristles are matched with fish varieties to be subjected to scale removing processing, the hardness and softness of the bristles are proper, the scale removing scraper and the tooth-shaped scraper are all assemblies of sheet-shaped structures with various blade shapes, and the scale removing scraper and the tooth-shaped scraper are both made of rustless materials and are rigid or have certain elasticity;
The fish scale deposition tank (10) is arranged at the lower part of the fish scale removing roller device, a fish scale strainer and a circulating water treatment device system are arranged in a matched manner, and the fish scale removing roller device is provided with a safety protective housing.
3. The fish scaling drum arrangement based on a horizontal multistage drum scaling device of claim 1, characterized in that: the drum body (1.3) is a grid-shaped drum body formed by a plurality of long grids with equal length and protruding strip-shaped rib edges on the surface, the grid-shaped drum body is formed on the circumference, the long grids are specially-made strips with rib edges or full-circle threaded steel bars and semi-circle threaded steel bars with rib edges, long rectangular gaps are formed among the long grids, and the distance between the long grids is far greater than the maximum overall dimension of the fish scale and far smaller than the overall dimension of the fish body.
4. A fish scaling drum assembly based on a horizontal multi-stage drum scaling device as claimed in claim 1, wherein: the cross section of the descaling roller is circular or polygonal with 5-10 sides.
5. A method of scaling a fish scaling drum assembly based on a horizontal multi-stage drum scaling apparatus as claimed in claim 1, wherein: after being descaled by a first-stage descaling roller and a second-stage descaling roller of horizontal multi-stage roller descaling equipment, the fish bodies are fed into the cylindrical roller device (1) through the preposed material pushing device (2), most of the fish bodies continuously move forwards and pass through the fish passing spiral channel similar to the arched tunnel in a side lying and non-overlapping mode according to a snake-shaped moving path, and the fish bodies in the fish passing spiral channel similar to the arched tunnel mainly play a role in effectively scraping fish scales through high-frequency contact friction between the descaling structure (1.5) and the belly and back of the fish bodies.
6. A method of descaling as claimed in claim 5, wherein: the descaling structure (1.5) is divided into a flexible descaling structure and a rigid descaling structure, the flexible descaling structure is one or more of a hairbrush, a nylon wire brush, a rustless metal wire brush and a sand coating brush with protruding particles distributed on the surface, and the rigid descaling structure is one or more of a descaling scraper and a tooth-shaped scraper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910958110.1A CN110547320B (en) | 2019-10-10 | 2019-10-10 | Fish scaling roller device and method based on horizontal multi-stage roller scaling equipment |
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| CN201910958110.1A CN110547320B (en) | 2019-10-10 | 2019-10-10 | Fish scaling roller device and method based on horizontal multi-stage roller scaling equipment |
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| CN110547320A true CN110547320A (en) | 2019-12-10 |
| CN110547320B CN110547320B (en) | 2021-04-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111642551A (en) * | 2020-06-11 | 2020-09-11 | 大连工业大学 | Profile modeling many round brushes sea cucumber surface cleaning device |
| CN112956522A (en) * | 2021-04-12 | 2021-06-15 | 中国水产科学研究院渔业机械仪器研究所 | Intelligent control fish scaling equipment and method based on horizontal multi-stage roller shaft type propeller |
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