Automatic cleaning method and cleaning device for hairy crabs

Abstract

The invention discloses an automatic cleaning method and device for hairy crabs, and the method comprises the following steps: a, dissolving citric acid in water to prepare a cleaning solution with the solubility of 1%-1.5%, and controlling the water temperature at 12-18 DEG C; b, pouring the hairy crabs into the prepared cleaning solution, and soaking for 4-7 minutes; c, the pretreated hairy crabs are placed on a metal wire grid conveying belt; d, spraying the hairy crabs on the metal wire grid conveying belt by using a high-pressure water gun, and cleaning the hairy crabs by using high-frequency vibration of ultrasonic waves; e, roller brushes are arranged on the upper side and the lower side of the metal wire grid conveying belt at the same time, and the roller brushes are driven by a power source to rotate at a low speed so as to clean the upper face and the lower face of the hairy crab at the same time. According to the automatic cleaning method designed by the invention, efficient and high-quality cleaning processing of the hairy crabs can be automatically realized, and the potential safety hazard that fingers are pinched in the cleaning process is eliminated.

Description

Technical Field

[0001] The invention relates to a method and equipment for processing hairy crabs, in particular to an automatic cleaning method and a cleaning device for hairy crabs. Background Art

[0002] During the breeding process of hairy crabs, due to the limitations of the lake and pond breeding environment, the shells of mature hairy crabs are covered with a lot of mud and dirt. These mud and dirt need to be effectively removed, otherwise it will seriously affect the sales quality of hairy crabs. For this reason, farmers will carefully clean the hairy crabs before selling them. However, at present, the traditional method of cleaning hairy crabs is for workers to manually clean them with a brush. Not only is the cleaning speed slow, the cleaning quality is not high, and there is a safety hazard of workers being injured by crab claws during the cleaning process. Therefore, this manual cleaning method is increasingly difficult to meet the growing supply and processing needs of hairy crabs. Summary of the invention

[0003] In view of the above problems, the present invention designs an automatic cleaning method for hairy crabs, which can automatically realize efficient and high-quality cleaning processing of hairy crabs and eliminate the safety hazard of fingers being pinched during the cleaning process.

[0004] The second inventive object of the present invention is to provide a cleaning device for the above-mentioned automatic cleaning method of hairy crabs, which can quickly and efficiently realize the automatic cleaning of hairy crabs, has a compact structure, can effectively improve the cleaning efficiency of hairy crabs, and can produce good economic benefits.

[0005] To achieve the above object, the present invention adopts the following technical solutions: An automatic cleaning method for hairy crabs comprises the following steps: a. Dissolve citric acid in water to make a cleaning solution with a concentration of 1% to 1.5%, and control the water temperature at 12 to 18 degrees Celsius; b. Pour the hairy crabs into the above prepared cleaning solution and soak them for 4-7 minutes for pretreatment. During the soaking process, aeration and oxygenation are performed to maintain the activity of the hairy crabs. c. Place the pre-treated hairy crabs on a wire mesh conveyor belt and transport them along the conveyor belt; d. Use a high-pressure water gun to spray the hairy crabs on the metal wire mesh conveyor belt, and use ultrasonic high-frequency vibration to clean the hairy crabs; e. At the same time, roller brushes are arranged on both the upper and lower sides of the wire mesh conveyor belt, and the roller brushes rotate slowly under the drive of the power source to clean the upper and lower sides of the hairy crabs at the same time; f. A water collection trough is provided below the wire mesh conveyor belt to collect waste water; g. Send the wastewater in the water tank to the water circulation system, and after being treated in the purification tank, it is pressurized by a water pump and sent to a high-pressure water gun to achieve water recycling.

[0006] An automatic cleaning device for hairy crabs, characterized in that it includes an automatic conveying mechanism, a flushing mechanism and a cleaning mechanism; the automatic conveying mechanism is composed of an active conveying wheel, a driven conveying wheel and a metal mesh conveyor belt, the active conveying wheel and the driven conveying wheel are arranged in parallel and spaced apart, the metal mesh conveyor belt is installed between the two, and the active conveying wheel is externally connected to a driving motor; the flushing mechanism is arranged at intervals above the mesh conveyor belt, the flushing mechanism is a plurality of high-pressure water guns arranged at intervals, the nozzle of each high-pressure water gun is arranged downwardly facing the metal mesh conveyor belt, and the tail of each high-pressure water gun is connected to a common water inlet pipe; the cleaning mechanism includes a plurality of roller brushes arranged above and below the metal mesh conveyor belt, the plurality of roller brushes on each side are grouped in two, the rotation directions of the roller brushes in the same group are opposite, and each roller brush rolls slowly under the drive of a power source to realize the cleaning operation of the hairy crabs on the metal mesh conveyor belt.

[0007] More specifically, the wire mesh conveyor belt is composed of a plurality of mesh units connected together, and adjacent mesh units are hinged together.

[0008] More specifically, side guard plates are provided on both sides of the wire mesh conveyor belt to prevent hairy crabs from falling.

[0009] More specifically, a plurality of ultrasonic sound generators are provided at intervals on the bottom of the side guard plate, and the high-frequency vibrations generated by the ultrasonic sound generators act on the water sprayed on the shell of the hairy crab to perform a cleaning operation.

[0010] More specifically, a wastewater collection trough is provided below the wire mesh conveyor belt.

[0011] More specifically, the above-mentioned wastewater collection tank is connected to a water circulation system through a pipeline. The water circulation system includes a sedimentation chamber and a recovery chamber. The two chambers are separated by a partition lower than the wall of the purification tank. The pipeline of the collection tank is connected to the sedimentation chamber. The water in the sedimentation chamber rises to the height of the partition and then flows into the recovery chamber. A pressurized water pump is provided in the recovery chamber, and the pressurized water pump sends the pressurized water to the water inlet pipe of the high-pressure water gun.

[0012] More specifically, the above-mentioned wire mesh conveyor belt is provided with a connecting plate at its output end for placing the cleaned hairy crabs, and the connecting plate sends the hairy crabs to the bundling machine one by one through a loading and transferring mechanism.

[0013] More specifically, the water spraying temperature of the above-mentioned high-pressure water gun is controlled at 12~18 degrees Celsius.

[0014] The automatic cleaning method and cleaning device for hairy crabs designed by the present invention integrate automatic transmission, flushing, double-side cleaning and water recycling, can realize efficient and high-quality cleaning of hairy crabs, fundamentally eliminate the safety hazard of fingers being pinched by hairy crab claws, and can meet the cleaning and processing needs of large quantities of hairy crabs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 , a schematic diagram of the structure of the present invention; Figure 2 , a top view of the automatic conveying mechanism of the present invention; in, 1—automatic conveying mechanism, 11—active conveying wheel, 111—driving motor, 12—driven conveying wheel, 13—metal mesh conveying belt, 13a—mesh unit, 13a1—hinge, 131—hollow hole, 14—side guard plate, 15—ultrasonic sound generator; 2—flushing mechanism, 21—high-pressure water gun, 22—water inlet pipe, 23—pressure water pump; 3—cleaning mechanism, 31—roller brush; 4—wastewater collection tank, 41—pipeline; 5—water circulation system, 51—precipitation chamber, 52—recovery chamber, 53—partition; 6—Connection plate. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned purpose, technical scheme and advantages of the present invention more obvious and easy to understand, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0017] An automatic cleaning method for hairy crabs comprises the following steps: a. Prepare the pretreatment solution. Dissolve citric acid in water to make a cleaning solution with a concentration of 1% to 1.5%. Control the water temperature at 12 to 18 degrees Celsius to effectively reduce the activity of the hairy crabs and facilitate the subsequent cleaning process.

[0018] b. Pour the hairy crabs into the prepared cleaning solution and soak them for 4-7 minutes for pre-treatment, so that the dirt on the hairy crab shells can be softened and decomposed for later flushing and cleaning. Aeration and oxygenation should be carried out throughout the soaking process to maintain the activity of the hairy crabs.

[0019] c. Place the pre-treated hairy crabs on a wire mesh conveyor belt. The wire mesh conveyor belt is densely covered with hollow holes. The size of the hollow holes should be slightly smaller than the size of the hairy crabs. This can ensure that the hairy crabs will not fall off while being transported along the wire mesh conveyor belt, while at the same time exposing the hairy crab shells in the hollow holes to the greatest extent to facilitate bottom cleaning operations.

[0020] d. Use a high-pressure water gun to flush the hairy crabs on the wire mesh conveyor belt, and use the high-frequency vibration generated by an ultrasonic sounder to clean the hairy crabs to ensure humidity while washing away the floating sand and silt on the hairy crab shells.

[0021] e. At the same time, roller brushes are arranged on both sides of the upper and lower parts of the wire mesh conveyor belt. Driven by the power source, the roller brushes rotate slowly and clean the upper and lower parts of the hairy crabs at the same time to remove the stubborn dirt on the shell of the hairy crabs, thereby realizing automatic and efficient cleaning of the hairy crabs.

[0022] f. A water collection tank is set under the wire mesh conveyor belt, and the wastewater with silt after cleaning is centralized for temporary storage.

[0023] g. Send the wastewater in the water tank to the water circulation system, and after being treated in the purification tank, it is pressurized by a water pump and sent to a high-pressure water gun for flushing operation, so as to realize the recycling of water, reduce water waste and improve economic benefits.

[0024] Compared with the existing manual scrubbing method, the automatic hairy crab cleaning method designed above can achieve efficient and high-quality cleaning of hairy crabs, fundamentally eliminate the safety hazard of fingers being pinched by crab claws, and can meet the cleaning and processing needs of large quantities of hairy crabs.

[0025] Here, to further illustrate the automatic cleaning method of the present invention, the present invention provides the following automatic cleaning device.

[0026] like Figure 1 and 2 As shown, an automatic cleaning device for hairy crabs mainly includes an automatic conveying mechanism 1, a flushing mechanism 2 and a cleaning mechanism 3.

[0027] The automatic conveying mechanism 1 is composed of an active conveying wheel 11, a driven conveying wheel 12 and a wire mesh conveyor belt 13. The active conveying wheel 11 and the driven conveying wheel 12 are arranged in parallel and spaced apart, and the wire mesh conveyor belt 13 is installed between the two. Here, in order to ensure the normal transmission of the wire mesh conveyor belt 13, the wire mesh conveyor belt 13 is composed of a plurality of mesh units 13a connected, and adjacent mesh units 13a are hinged together 13a1. The wire mesh conveyor belt 13 is densely provided with hollow holes 131, and the size of the hollow holes 131 is slightly smaller than the size of the hairy crab. On the one hand, it is ensured that the hairy crab does not fall from the hollow holes 131 during the transmission process, and on the other hand, the hairy crab shell is exposed in the hollow holes 131 to the greatest extent to facilitate the cleaning operation of the roller brush under the conveyor belt.

[0028] The active transmission wheel 11 is externally connected to a driving motor 111. During operation, the driving motor 111 drives the active transmission wheel 11, the wire mesh conveyor belt 13 and the driven transmission wheel 12 to automatically transmit crabs.

[0029] The flushing mechanism 2 is arranged at intervals above the mesh conveyor belt 13. The flushing mechanism 2 is a plurality of high-pressure water guns 21 arranged at intervals. The nozzle of each high-pressure water gun 21 is arranged downwardly facing the metal mesh conveyor belt 13 to spray the crabs on the conveyor belt, ensuring the cleaning humidity while washing away the floating sand and silt on the shell of the hairy crab. The tail of each high-pressure water gun 21 is connected to a common water inlet pipe 22, and the water inlet pipe 22 is connected to a pressurized water pump 23 or a high-pressure water source.

[0030] The cleaning mechanism 3 includes a plurality of roller brushes 31 arranged above and below the wire mesh conveyor belt. The plurality of roller brushes 31 on each side are grouped in two. The roller brushes 31 in the same group rotate in opposite directions, as shown by the arrows in the figure. Each roller brush 31 rolls at a high speed driven by a power source to perform a deep cleaning operation on the hairy crabs on the wire mesh conveyor belt 13 to remove stubborn dirt on the shells of the hairy crabs.

[0031] Here, in order to achieve fast and efficient cleaning, the water spray temperature of the above high-pressure water gun 21 is controlled between 12 and 18 degrees Celsius. Within this temperature range, the activity of the hairy crab can be effectively reduced to ensure that the crab claws are basically motionless during the cleaning process. On the one hand, it can reduce the occurrence of broken claws, and at the same time it is also beneficial to improve the cleaning efficiency.

[0032] Side guard plates 14 are provided on both sides of the wire mesh conveyor belt 13 to prevent the hairy crabs from falling during the transmission process and ensure normal transmission.

[0033] Here, in order to obtain a better cleaning effect, the side guard plate 14 is provided with a plurality of ultrasonic emitters 15 at intervals on the bottom near the wire mesh conveyor belt 13. The high-frequency vibrations generated by the ultrasonic emitters 15 act on the water on the shell of the hairy crab, and the cavitation, acceleration and straight-forward flow effects of ultrasonic waves in the water are utilized to disperse, emulsify and peel off the dirt layer on the shell, thereby achieving the purpose of deep cleaning.

[0034] The above device will generate a large amount of waste water during the whole cleaning process. If it is not recycled and reused, it will cause serious waste of water resources. For this reason, a waste water collection tank 4 is arranged under the wire mesh conveyor belt 13 for collecting and temporarily storing waste water.

[0035] The wastewater collection tank 4 is connected to a water circulation system 5 through a pipeline 41. The water circulation system 5 includes a sedimentation chamber 51 and a recovery chamber 52. The two chambers are separated by a partition 53 that is lower than the wall of the purification tank. The pipeline of the collection tank 4 is connected to the sedimentation chamber 51. In use, after the wastewater enters the sedimentation chamber 51, it is left to stand or a purifier is added to perform sedimentation purification. After the purified water rises to the height of the partition 53, it flows into the recovery chamber 52. A pressurized water pump 23 is provided in the recovery chamber 52. The pressurized water pump 23 delivers the pressurized water to the water inlet pipe 22 of the flushing mechanism 2.

[0036] In practice, in order to realize a full set of assembly line operations, the metal wire mesh conveyor belt 13 is provided with a connecting plate 6 on the outer side of its output end for placing the cleaned hairy crabs, and the connecting plate 6 is used to send the hairy crabs one by one to the hairy crab bundling machine through a feeding transfer mechanism.

[0037] In summary, the automatic cleaning method and cleaning device for hairy crabs designed in the present invention, which combine automatic transmission, flushing, double-sided cleaning and water recycling into one, can achieve efficient and high-quality cleaning of hairy crabs, fundamentally eliminate the safety hazard of fingers being pinched by hairy crab claws, and can meet the needs of large-scale cleaning and processing of hairy crabs.

[0038] The above description is only a preferred embodiment of the present invention and does not impose any form of limitation on the invention. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. An automatic cleaning method for hairy crabs, comprising the following steps: a. Dissolve citric acid in water to make a cleaning solution with a concentration of 1% to 1.5%, and control the water temperature at 12 to 18 degrees Celsius; b. Pour the hairy crabs into the above prepared cleaning solution and soak them for 4-7 minutes for pretreatment. During the soaking process, aeration and oxygenation are performed to maintain the activity of the hairy crabs. c. Place the pre-treated hairy crabs on a wire mesh conveyor belt and transport them along the conveyor belt; d. Use a high-pressure water gun to spray the hairy crabs on the metal wire mesh conveyor belt, and use ultrasonic high-frequency vibration to clean the hairy crabs; e. At the same time, roller brushes are arranged on both the upper and lower sides of the wire mesh conveyor belt, and the roller brushes rotate slowly under the drive of the power source to clean the upper and lower sides of the hairy crabs at the same time; f. A water collection trough is provided below the wire mesh conveyor belt to collect waste water; g. Send the wastewater in the water tank to the water circulation system, and after being treated in the purification tank, it is pressurized by a water pump and sent to a high-pressure water gun to achieve water recycling.

2. An automatic cleaning device for hairy crabs, characterized in that: The invention comprises an automatic conveying mechanism (1), a flushing mechanism (2) and a cleaning mechanism (3); the automatic conveying mechanism (1) is composed of a driving conveying wheel (11), a driven conveying wheel (12) and a metal mesh conveying belt (13); the driving conveying wheel (11) and the driven conveying wheel (12) are arranged in parallel and spaced apart, the metal mesh conveying belt (13) is installed between the two, and the driving conveying wheel (11) is externally connected to a driving motor (111); the flushing mechanism (2) is arranged above the mesh conveying belt (13) at intervals, and the flushing mechanism (2) is a plurality of spaced apart arrangements. A plurality of high-pressure water guns (21), the nozzles of each high-pressure water gun (21) being arranged downwardly facing the metal mesh conveyor belt (13), and the tails of each high-pressure water gun (21) being connected to a common water inlet pipe (22); the cleaning mechanism (3) comprising a plurality of roller brushes (31) arranged above and below the metal mesh conveyor belt (13), the plurality of roller brushes (31) on each side being arranged in groups of two, the roller brushes (31) in the same group rotating in opposite directions, and each roller brush (31) rolling slowly under the drive of a power source to clean the hairy crabs on the metal mesh conveyor belt (13).

3. The automatic cleaning device for hairy crabs according to claim 2, characterized in that: The metal wire mesh conveyor belt (13) is composed of a plurality of mesh units (13a) connected together, and adjacent mesh units (13a) are hinged together.

4. The automatic cleaning device for hairy crabs according to claim 2, characterized in that: Side guard plates (14) are provided on both sides of the metal wire mesh conveyor belt (13a) to prevent hairy crabs from falling.

5. The automatic cleaning device for hairy crabs according to claim 4, characterized in that: A plurality of ultrasonic sound generators (15) are arranged at intervals on the bottom of the side guard plate (14), and the high-frequency vibrations generated by the ultrasonic sound generators (15) act on the water sprayed on the shell of the hairy crab to perform a cleaning operation.

6. An automatic cleaning device for hairy crabs as claimed in any one of claims 2 to 5, characterized in that: A wastewater collection trough (4) is provided below the metal wire mesh conveyor belt (13).

7. The automatic cleaning device for hairy crabs according to claim 6, characterized in that: The wastewater collection tank (4) is connected to a water circulation system (5) via a pipeline (41). The water circulation system (5) comprises a sedimentation chamber (51) and a recovery chamber (52). The two chambers are separated by a partition (53) that is lower than the wall of the purification tank. The pipeline (41) of the collection tank (4) is connected to the sedimentation chamber (51). After the water in the sedimentation chamber (51) rises to the height of the partition (53), it flows into the recovery chamber (52). A pressurized water pump (23) is provided in the recovery chamber (52). The pressurized water pump (23) delivers pressurized water to the water inlet pipe (22) of the high-pressure water gun (21).

8. An automatic cleaning device for hairy crabs as claimed in any one of claims 2 to 5, characterized in that: The metal wire mesh conveyor belt (13) is provided with a connecting plate (6) at its output end for placing the cleaned hairy crabs, and the connecting plate (6) is used to transport the hairy crabs one by one to the bundling machine via a feeding transfer mechanism.

9. An automatic cleaning device for hairy crabs as claimed in any one of claims 2 to 5, characterized in that: The water spraying temperature of the high-pressure water gun (21) is controlled at 12 to 18 degrees Celsius.

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