A machine for pre-treatment of selected shrimp types that are to be forwarded to machine peeling, which machine, across a conveyor belt with shrimps and at a height above this, comprises one or more mounted rotating brush that is driven by a motor and which in interaction with the distance to the conveyor belt separates the heads of the shrimps from the body.

A shrimp shell separation and cleaning device for Euphausia superba comprises a hollow main body; a screening cylinder installed rotationally inside the main body and having a bottom installed with a filter screen; a stirring assembly provided rotationally inside the main body and comprising a cylindrical cam installed inside the screening cylinder, wherein a sleeve frame is sleeved over the cylindrical cam, stirring rods are provided on the sleeve frame in an array mode and rotationally installed on the sleeve frame through driving grooves, the driving grooves run through the sleeve frame and each have one end, which penetrates through the sleeve frame, rotationally installed in one driving groove of the cylindrical cam, and the sleeve frame is arranged in self-rotating manner; a feeding port installed fixedly on communicating with the main body; and a spray head arranged fixedly inside the main body for spraying water into the screening cylinder.

Shrimp processing apparatus to peel shrimp along with methods for peeling shrimp are described herein. The shrimp processing apparatus may be provided in systems including one or more processing stations configured to peel individual shrimp, where peeling may involve removal of shell segments on the dorsal surfaces of the shrimp abdomen and/or removal of pleopods/swimmerets on the ventral surfaces of the shrimp abdomen and, optionally, separation of shell segments. The processing systems and methods may, in one or more embodiments, include apparatus for and methods of measuring the shrimp.

A shrimp processing system conveys raw peeled shrimps to an imaging chamber in which shrimp bits and shrimps with residual shell are detected and diverted from the stream of acceptable shrimps allowed to pass on to downstream processing. An ultraviolet (UV) light source in the imaging chamber is constantly on. A visual inspection system takes images of the passing stream of shrimp when a white-light source is turned on to illuminate an exposure region to detect bits, clumps of shrimps, and acceptable individual shrimps. The visual inspection system takes images of the passing stream when the white-light source is turned off and the exposure region is subjected only to ultraviolet radiation. The visual inspection system detects shrimps with residual shell in the V images. Shrimp bits and shrimps with residual shell are diverted from the stream of shrimps by air jet nozzles to corresponding reject destinations.

A shrimp peeling device includes a frame, a driving member, a first conveying wheel, a second conveying wheel, a conveying belt, a clamping frame, a cutting assembly, and a shell removing frame. The conveying belt is in transmission connection with the first conveying wheel and the second conveying wheel. The clamping frame is provided with a first pathway for the conveying belt to pass through. A processing opening is formed in the clamping frame. The cutting assembly is disposed at the processing opening. The shell removing frame is provided with a second pathway for the conveying belt to pass through, and the second pathway includes a limiting cavity and a narrowing cavity. The shell removing frame is provided with a discharge port. The conveying belt is upwards bent and folded in half to clamp and convey a shrimp.

Shrimp processing apparatus to head and optionally sever the mud veins of shrimp, along with methods for heading and mud vein severing are described herein. The shrimp processing apparatus may be provided in systems may include one or more processing stations configured to perform one or more of the following functions on each shrimp: measurement of individual shrimp, severing the mud vein of individual shrimp, and heading of individual shrimp.

A shrimp processing machine includes an adjustable cutting assembly and an adjustable meat picking assembly. The adjustable cutting assembly is adapted to adjust between a first configuration that forms a cut having a first length on a shrimp and a second configuration that forms a cut having a second length on the shrimp. The adjustable cutting assembly is further adapted to adjust between a first position that forms a cut having a first depth on the shrimp and a second position that forms a cut having a second depth on the shrimp. The adjustable meat picking assembly is adapted to rotatably adjust when a meat picker contacts the shrimp to remove shrimp meat from a shrimp shell.

Apparatus and methods for deheading and peeling shrimp hydraulically using the Venturi Effect. A shrimp-laden fluid is pumped through a conduit system including one or more venturi tubes. The acceleration of the fluid through the venturis detaches the heads and loosens or detaches the shells from the shrimp. The venturis may be used in conjunction with a roller peeler to increase peeling quality. An inspection station receives shrimp from the roller peeler and directs incompletely peeled shrimp back to the peeler or one or more of the venturis.

A shrimp processing method and system, the system comprising a plurality of clamps, wherein each clamp is configured to hold a shrimp proximate a tail of the shrimp, a plurality of processing stations comprising at least one data collection station capable of collecting data regarding a shrimp held in a clamp and at least one functional station capable of changing the shrimp held in a clamp, a conveying system connecting the plurality of processing stations, the conveying system configured to move the plurality of clamps between the processing stations, and a controller operably connected to the conveying system and the processing stations, the controller configured to operate the conveying system and to selectively activate each processing station.

A shrimp shell separation and cleaning device for Euphausia superba comprises a hollow main body; a screening cylinder installed rotationally inside the main body and having a bottom installed with a filter screen; a stirring assembly provided rotationally inside the main body and comprising a cylindrical cam installed inside the screening cylinder, wherein a sleeve frame is sleeved over the cylindrical cam, stirring rods are provided on the sleeve frame in an array mode and rotationally installed on the sleeve frame through driving grooves, the driving grooves run through the sleeve frame and each have one end, which penetrates through the sleeve frame, rotationally installed in one driving groove of the cylindrical cam, and the sleeve frame is arranged in self-rotating manner; a feeding port installed fixedly on communicating with the main body; and a spray head arranged fixedly inside the main body for spraying water into the screening cylinder.