CN213819729U - Aseptic rice apparatus for producing - Google Patents

Abstract

The utility model belongs to the technical field of food processing equipment, in particular to an aseptic rice production device; comprises a rice feeding device, a rice storage device, a rice washing device, a filling device, a sterilizing device, a water injection device, a primary packaging device, a cooking device, an air charging device, a secondary packaging device, a detection device and an output device which are connected in sequence; the device also comprises a tray and a control device; the control system controls the stable adaptive operation of the aseptic rice production device, the operation speed is adjustable, continuous production is realized, and the production efficiency is greatly improved; in addition, the installation of the sterilization device and the air charging device makes up for the defect of short shelf life of the traditional packaged rice; the utility model provides a convenient to use of equipment, strong adaptability are energy-efficient aseptic rice apparatus for producing.

Description

Aseptic rice apparatus for producing

Technical Field

The utility model belongs to the technical field of food processing equipment, concretely relates to aseptic rice apparatus for producing.

Background

The consumption level of people in China is continuously improved along with the development of the society, the pace of work and life is accelerated due to the high-speed development of the society, the demand of convenience food and the demand of quality requirements are gradually increased, and the production of rice becomes a necessary development trend in the aspect of the aspect. Sterilized rice, i.e. sterilized instant rice, is high-quality fast food rice produced in large scale by industrialization, and the rice is sterilized in high-temperature and high-pressure environment, and then is directly sealed in a packaging container containing clean nitrogen in a sterile and dustless environment, so that the rice can be stored for a long time and can be eaten directly or after being simply heated.

At present, researches are mostly focused on the production process and the preservation of the aseptic rice, and the research on an aseptic rice production device is only reported; the existing device is complex in structure and complex in operation through searching relevant documents, and mainly comprises a cooking device or an ultraviolet sterilization device, which can only kill completely developed bacteria or fungi but cannot kill offspring including spores and the like, so that the shelf life of the packaged rice is greatly shortened; therefore, the problem to be solved is to design an aseptic rice production device which is simple and convenient to operate and can completely kill complete bacteria and spores.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the technical defect who exists among the prior art, provide an aseptic rice apparatus for producing, the tray that will be equipped with rice packing carton moves in proper order between each device, and the functioning speed is adjustable, realizes constantly producing, has improved production efficiency greatly, and sterilizing equipment and aerating device's installation has compensatied the defect that traditional packing rice shelf life is short, is an efficient energy-conserving aseptic rice apparatus for producing.

In order to achieve the above purpose, the utility model comprises the following technical scheme:

the utility model firstly provides an aseptic rice production device, which comprises a rice feeding device, a rice storage device, a rice washing device, a filling device, a sterilizing device, a water injection device, a primary packaging device, a cooking device, an aerating device, a secondary packaging device, a detecting device and an output device which are connected in sequence;

the device also comprises a tray and a control device; the rice conveying device, the rice storage device, the rice washing device, the filling device, the sterilizing device, the water injection device, the primary packaging device, the cooking device, the inflating device, the secondary packaging device, the detection device and the output device are electrically connected with the control device;

the rice conveying device comprises a rice conveying hopper and a vertical elevator; the vertical lifter comprises a conveying device; rice grains in the rice conveying hopper are conveyed to the rice storage device through a conveying device of the vertical lifting machine;

the rice storage device comprises a rice storage hopper I, a motor I and a screw rod; the lower end of the interior of the first rice storage hopper is connected with a screw rod, and the top end of the screw rod is provided with a first motor; an output shaft of the motor I drives the screw rod to rotate; a rice washing device is arranged right below the first rice storage hopper;

the rice washing device comprises a rice washing groove, a spiral device, a motor II and a mesh enclosure; the rice washing tank is provided with a water inlet and a water outlet, a spiral device is arranged in the rice washing tank, a second motor is arranged at one end of the spiral device, and an output shaft of the second motor drives the spiral device to operate; the spiral device is obliquely arranged, two ends of the spiral device are respectively connected with the first wall surface and the second wall surface of the rice washing tank, the connected areas are respectively marked as an area A and an area B, and the area A is higher than the area B; the wall surface of the rice washing tank close to the rice feeding device is a second wall surface, and the wall surface corresponding to the second wall surface is a first wall surface;

the outer layer of the spiral device is wrapped by a mesh enclosure, the surface of the mesh enclosure is provided with uniform through holes, and the diameter of each through hole is 0.2-1 mm; the mesh enclosure is provided with an opening end and a sealing end, the opening end is higher than the sealing end, and the opening end is positioned in the area A and penetrates through the connecting wall surface of the rice washing tank; the opening end is higher than the liquid level of water in the rice washing tank, the sealing end is communicated with the lower end of the first rice storage hopper, and the joint is sealed;

the water inlet and the water outlet are arranged on the wall surface of the rice washing tank; the water inlet is higher than the opening end of the mesh enclosure and is arranged on the wall surface of the same rice washing groove with the opening end; the water outlet is arranged on the lower wall surface of the rice washing groove; a filling device is arranged right below the opening end of the mesh enclosure; a first conveying belt is arranged below the filling device; recording a port of the tray entering the filling device as a C end, and recording a port of the tray exiting the filling device as a D end;

the filling device comprises a rice storage hopper II, a flat spreading hammer, a filling spray nozzle I and a meter I; rice grains in the rice washing groove flow into the second rice storage hopper through the opening end of the mesh enclosure; the lower end of the rice storage hopper II is connected with a plurality of groups of meters I; two ends of the first meter, namely the C end and the D end of the filling device are respectively provided with a flat laying hammer; the lower end of the meter is connected with a first filling nozzle; a first conveying belt is arranged below the filling spray head; the packaging boxes transported by the conveyor belt one by one are filled through a filling nozzle;

the filling device is connected with the sterilization device through a first conveyor belt;

the sterilization device mainly comprises a plurality of groups of sterilization kettles and an adaptive device; the sterilization kettle comprises a stop valve, a pressure release valve, a cuboid shell, a sealing ring and an electric suction door; the upper wall surface outside the cuboid shell is provided with a stop valve, and the lower wall surface is provided with a pressure release valve; the electric suction doors are arranged at the inlet and the outlet and comprise an inlet end electric suction door and an outlet end electric suction door;

the adaptive device comprises a pushing device and a manipulator; the pushing device is connected with the inlet end electric suction door and is used for pushing the tray transported by the first conveyor belt into the sterilization kettle; the manipulator is connected with the outlet end electric suction door; after the sterilization kettle is sterilized, the electric suction door at the outlet end is opened, the manipulator is used for grabbing the tray and returning the tray to the first conveying belt, and the first conveying belt is connected with the water injection device;

the conveyor belt I penetrates through the lower part of the water injection device, one end, entering the water injection device, of the tray is an E end, and one end, exiting the water injection device, of the tray is an F end;

the water injection device comprises a water storage tank, a second filling spray head, a second meter and a stirrer; the lower end of the water storage tank is connected with a plurality of second metering devices; the second filling spray head is connected to the lower end of the second metering device; the meter is used for metering the water injection amount in a single packaging box; the stirrer is arranged at the end F of the water injection device and is used for uniformly stirring the rice grains and the water in the packaging box;

the water injection device is connected with the primary packaging device through a first conveying belt; recording the end of the tray entering the primary packaging device as a G end, and recording the end of the tray exiting the primary packaging device as an H end;

the primary packaging device comprises a motor, a main rolling shaft, an auxiliary rolling shaft, a plurality of first heating sealing plates and a cutter; two ends of the first heating sealing plates, namely the G end and the H end, are provided with a main rolling shaft and an auxiliary rolling shaft; the main rolling shaft is driven by an output shaft of the motor so as to drive the auxiliary rolling shaft; the auxiliary rolling shaft is higher than the tray inner packing box and is used for pressing the sealing film downwards to the sealing edge position of the packing box;

the size of the single control heating plate I is matched with that of a single packing box and used for sealing the packing box; and controlling a group of opposite corners of the first heating sealing plate to have no heating zone, namely, keeping a group of opposite corners of the packaging box not to be sealed; the cutter is connected with the first control heating plate and used for cutting a sealing film of the sealed packaging box;

the primary packaging device is connected with the cooking device through a first conveyor belt; a feeding device is arranged at an inlet of the cooking device; the tray enters the cooking device through the feeding device;

the cooking device comprises a cooking box body, a steam generating device, a pushing device, a conveying chain wheel device, a drainage system and a ventilation device; the steam generating device, the drainage device and the ventilation device are communicated with the cooking box body;

the transmission chain wheel device is arranged inside the cooking box body and is arranged in an S shape; a feeding device is also arranged at the inlet of the cooking device; the tray enters a transmission chain wheel device of the cooking device through the feeding device and drives the tray to move forwards in an S shape;

the interior of the cooking box body is also provided with a temperature sensor for monitoring the temperature in the cooking box body; an outlet is arranged at the tail end of the S-shaped conveying chain wheel device, is positioned on the wall surface of the cooking box body and is in butt joint with the second conveying belt; meanwhile, a pushing device is further arranged inside the cooking box body, and the height of the pushing device is consistent with that of the second conveying belt, so that the cooked tray can be stably pushed to the second conveying belt;

the cooking box body is connected with the air charging device through a second conveyor belt; the inflation device comprises a shell, an ultraviolet lamp, a nitrogen filling device and an air draft device; an ultraviolet lamp is arranged on the upper wall in the shell; the air draft device comprises an air draft pipe and an air volume adjusting valve; the air draft device is communicated with the shell, is arranged on the side wall of the shell and is used for exchanging internal air and external air; the nitrogen filling device comprises a nitrogen adjusting valve and a nitrogen conveying pipe and is arranged at the outlet of the inflating device; the nitrogen conveying pipe conveys nitrogen through one unsealed part of the sealing film of the packaging box, and exhausts the air in the packaging box to prolong the shelf life;

the inflating device is connected with the secondary packaging device through a second conveying belt; the secondary packaging device comprises a plurality of groups of heating sealing plates II and a tray packaging box separating device which are connected in sequence; the tray packaging box separating device is connected with the detection device through a second conveying belt; the detection device comprises a weight detector, a metal detector, a pressure detector and a rejecting device; the pressure detector, the weight detector, the metal detector and the removing device are sequentially arranged and electrically connected with each other; the rejecting device comprises a controller and a spring device, wherein the controller is used for receiving detection information of the weight detector, the metal detector and the pressure detector; the controller is electrically connected with the spring device;

the rejecting device is connected with the output device through a second conveyor belt; the output device comprises a counting device and a packaging device.

Preferably, the control device comprises a starting module, a parameter setting module and a control module; the opening end is also provided with a closing cover so as to open and close the opening; the flow velocity of the water inlet is less than or equal to that of the water outlet.

Preferably, the two groups of the spreading hammers are respectively positioned at the C end and the D end of the filling device, and the spreading hammers move up and down to move to the packaging box area in the tray; the C-end flat paving hammer ensures that the packaging box is flat; and the D-end flat paving hammer ensures that the rice grains after filling are regularly and flatly paved.

Preferably, the filling speed of the filling device and the working frequency of the tiling hammer are matched with the working speed of the first conveyor belt, so that the filling and tiling operations are carried out orderly.

Preferably, the first conveyor belt passes through the lower part of the sterilizing device and is positioned at a position of 0.5-2cm below the sterilizing device; the sterilization kettle is made of seamless steel materials and is divided into an inner layer and an outer layer; high-temperature-resistant heat-insulating materials are filled between the inner layer and the outer layer; the steam temperature in the sterilization kettle is 130-140 ℃, and the sterilization time is maintained for 30-40 seconds.

Preferably, the lowest point of the auxiliary rolling shaft is 1-2cm higher than the sealed package box in the tray; the main rolling shaft and the auxiliary rolling shaft are both provided with two rolling shafts and used for outputting complete sealing films and collecting incomplete sealing films.

Preferably, the rice conveying device, the rice storage device, the rice washing device, the filling device, the sterilizing device, the water injection device and the primary packaging device form a production line; the aseptic rice production device can be provided with two parallel production lines. Preferably, the cooking box body is composed of an inner layer of stainless steel and an outer layer of stainless steel, and high-temperature-resistant heat-insulating materials are filled between the inner layer and the outer layer.

Preferably, the tray is a device comprising a plurality of cuboid concave regions, and the concave regions only have borders and are used for placing the packing box and playing a role in supporting the packing box; the tray is always horizontally upward; the first rice storage hopper and the second rice storage hopper are in inverted frustum pyramid shapes formed by welding stainless steel plates.

Preferably, the irrigation device is filled with sterile water; the nitrogen in the aerating device is sterile clean nitrogen.

Preferably, the width of the second conveyor belt at the detection device section is adjustable, and the adjusted width only allows one packing box to pass through.

Preferably, the place where the device of the present invention is placed is a sterile place.

The production process of the sterile rice production device comprises the following specific steps: rice grains are added into a rice conveying hopper, and the rice grains in the rice conveying hopper are conveyed to a first rice storage hopper of a rice storage device through a conveying device of a vertical lifting machine; the lower end of the first rice storage hopper is communicated with the sealing end of the mesh enclosure; a second rice storage hopper is arranged below the opening end of the mesh enclosure, so that rice grains can be conveyed to the second rice storage hopper through the opening end after being rotationally cleaned by the screw device; rice grains in the rice storage hopper II are metered by the metering device I and then are input into a packaging box in the tray through the filling nozzle I; before filling, the packaging box is firstly processed by a C-end spreading hammer, so that the packaging box is flat and standard; after filling, flatly paving the rice grains in the packing box by a D-end flatly paving hammer; after filling, the tray is conveyed to a sterilization device through a first conveyor belt; the inlet end electric suction door of the sterilization kettle is opened, the outlet end electric suction door is closed, the tray is pushed into the sterilization kettle by the pushing device, and meanwhile, the inlet end electric suction door is closed; closing the pressure release valve, opening the stop valve, inputting steam, closing the stop valve after input is finished, opening the pressure release valve after 30-40 seconds, removing the steam, opening the electric suction door at the outlet end after the sterilization process is finished, and pulling the tray out of the conveyor belt I by the manipulator; the tray is continuously conveyed to the irrigation device through the first conveyor belt; the water storage tank of the irrigation device is metered by the second metering device, sterile water is added into the packaging box through the second filling spray head, and then rice water is uniformly stirred by the stirrer, and the tray is continuously conveyed to the primary film sealing device through the first conveyor belt; the packaging box in the tray is heated and sealed by controlling the heating plate I, and redundant sealing films are removed by a cutter after sealing; then the tray is conveyed to the cooking device through the feeding device; the tray moves forwards in an S-shaped route through a conveying chain wheel device of the cooking device, the cooking is finished under the action of heat source steam, and the tray is pushed to a second conveying belt by a pushing device (the tray is continuously conveyed to an inflating device, and after being cooled, nitrogen is filled in an unsealed diagonal position of a sealing film of the packaging box by a nitrogen filling device to discharge air in the packaging box; and a plurality of groups of heating sealing plates II of the secondary packaging device are used for complete sealing, the tray is separated by the tray packaging box separating device, the packaging box is separated from the tray and enters the detection device, and after the detection of the pressure detector, the weight detector and the metal detector, the qualified product enters the output device for packaging.

Compared with the prior art, the utility model has the advantages as follows:

the aseptic rice production device adopts a conveying belt to sequentially connect a rice conveying device, a rice storage device, a rice washing device, a filling device, a sterilization device, a water injection device, a primary packaging device, a cooking device, an inflation device, a secondary packaging device, a detection device and an output device in series, and under the control of a control device, the tray automatically runs among the devices, so that continuous production is realized, and the production efficiency of equipment is greatly improved;

the production line of the sterile rice has two sterilization processes, wherein the first sterilization process is to sterilize cleaned and soaked raw rice in a sterilization kettle at high temperature and high pressure before cooking, and the sterilization not only can kill microorganisms but also can kill spores; the second sterilization is in the cooking box body, and after the cooking is finished, no bacteria residue can be ensured when the lunch box is sealed.

Drawings

FIG. 1 is a schematic view of the structure of the device for producing sterilized rice;

FIG. 2 is a front view of the sterilization kettle and the adapter of the sterile rice production device of the present invention;

reference numerals: 1-sending rice bucket; 2-vertical elevator; 3-rice storage hopper I; 4-rice washing tank; 5-a screw device; 6-rice storage bucket II; 7-a water storage tank; 81-meter one; 82-meter two; 9-sterilizing the kettle; 10-a stop valve; 11-heating the sealing plate; 12-heating the first sealing plate; 13-steaming and boiling the box body; 131-an outlet; 14-ultraviolet sterilizing lamp; 141-a housing; 15-an air draft device; 16-heating a second sealing plate; 17-a rejecting device; 181-a feeding device; 182-a pushing-out device; 19-a pressure relief valve; 20-a tray; 211-canning spray head I; 212-canning spray head two; 22-a tile hammer; 23-a water inlet; 24-a water outlet; 251-motor one; 252-motor two; 26-an output device; 271-conveyor belt one; 272-conveyor two; 28-a screw rod; 29-a stirrer; 30-mesh enclosure; 31-a pushing device; 32-a manipulator; 33-an inlet end electric suction door; 34-an outlet end electric suction door; 35-a cuboid housing; 36-a roller; 37-conveying the sprocket assembly.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example 1:

as shown in fig. 1-2, an aseptic rice production apparatus comprises a rice feeding device, a rice storage device, a rice washing device, a filling device, a sterilizing device, a water injection device, a primary packaging device, a cooking device, an air charging device, a secondary packaging device, a detection device and an output device which are connected in sequence; the device also comprises a control device, wherein the rice feeding device, the rice storage device, the rice washing device, the filling device, the sterilizing device, the water injection device, the primary packaging device, the cooking device, the inflating device, the secondary packaging device, the detection device and the output device are electrically connected with the control device; the control device comprises a starting module, a parameter setting module and a control module, and is used for controlling the stable adaptive operation of the corresponding load;

the tray 20 is a coverless device with 8 cuboid grooves inside, and packing boxes are placed in the grooves; the tray 20 is always kept horizontally upward;

the rice conveying device comprises a rice conveying hopper 1 and a vertical elevator 2; the vertical lifter 2 comprises a conveying device, and the rice conveying hopper 1 is detachably arranged on the conveying device of the vertical lifter 2; rice grains in the rice conveying hopper 1 are conveyed to a rice storage device through a conveying device of a vertical lifting machine 2;

the rice storage device comprises a rice storage hopper I3, a motor I251 and a screw rod 28; the lower end of the interior of the rice storage hopper I3 is connected with a screw rod 28, and the top end of the screw rod 28 is provided with a motor I251; an output shaft of the first motor 251 drives the screw rod 28 to rotate; the rice conveying hopper 1 conveys rice grains to a rice storage hopper I3 of the rice storage device through a vertical lifting machine 2; the rice storage hopper I3 is in an inverted frustum pyramid shape formed by welding stainless steel plates;

the rice washing device comprises a rice washing groove 4, a spiral device 5, a second motor 252 and a mesh enclosure 30; the rice washing tank 4 is provided with a water inlet 23 and a water outlet 24, a screw device 5 is arranged in the rice washing tank 4, a second motor 252 is arranged at one end of the screw device 5, and the screw device 5 is driven to operate by an output shaft of the second motor 252; the spiral device 5 is obliquely arranged, two ends of the spiral device are respectively connected with the first wall surface and the second wall surface of the rice washing tank 4, the connected areas are respectively marked as an area A and an area B, and the area A is higher than the area B; the wall surface of the rice washing tank 4 close to the rice feeding device is a second wall surface, and the wall surface corresponding to the second wall surface is a first wall surface; the outer layer of the screw device 5 is wrapped by a mesh enclosure 30 with an opening at one end, uniform through holes are arranged on the surface of the mesh enclosure 30, and the diameter of each through hole is 0.2-1 mm; the mesh enclosure 30 is provided with an opening end and a sealing end, the opening end is higher than the liquid level in the rice washing tank 4, is positioned in the area A and penetrates through the connecting wall surface of the rice washing tank 4; the opening end is also provided with a closing cover so as to open and close the opening; the sealing end is communicated with the lower end of the first rice storage hopper 3, and the joint is sealed; the water inlet 23 and the water outlet 24 are arranged on the wall surface of the rice washing tank 4; the water inlet 23 is higher than the opening end of the mesh enclosure 30 and is arranged on the wall surface of the rice washing tank 4 together with the opening end; the water outlet is arranged on the lower wall surface of the rice washing tank 4; the flow rates of the water inlet 23 and the water outlet 24 are consistent; the liquid level in the rice washing tank 4 is always lower than the position of the opening end;

rice grains from the first rice storage hopper 3 enter the bottom end of the mesh enclosure 30, the screw device 5 is started, meanwhile, water enters the water inlet 23, and is conveyed to the opening end of the mesh enclosure 30 under the action of the screw device 5, and rice washing is completed;

a filling device is arranged right below the opening end of the mesh enclosure 30; a first conveyor belt 271 is arranged below the filling device, the tray 20 is loaded with the packaging boxes, the tray 20 is transported to the filling device through the first conveyor belt 271, and the first conveyor belt 271 penetrates through the filling device; recording the port of the tray 20 entering the filling device as end C, and the port of the tray 20 exiting the filling device as end D; the filling device comprises a rice storage hopper II 6, a flat spreading hammer 22, a filling spray head I211 and a meter I81; the second rice storage hopper 6 receives rice grains flowing out from the opening end of the mesh enclosure 30 of the rice washing device; the lower end of the rice storage hopper II 6 is connected with eight groups of meters I81; two ends of the eight groups of meters I81, namely the end C and the end D of the filling device are respectively provided with a flat laying hammer 22; the lower end of each group of the first metering devices 81 is connected with a first filling spray head 211; a first conveyor belt 271 is arranged below the first filling spray head 211; the first counter 81 is used for counting the amount of rice grains in each packaging box; the tray 20 enters the lower part of a filling sprayer I211 of the filling device through a conveyor belt I271, and the packaging boxes conveyed by the conveyor belt I271 are filled through the filling sprayer I211;

two groups of flat laying hammers 22 are arranged and are respectively positioned at the C end and the D end of the filling device, and the flat laying hammers 22 move up and down to move to a packaging box area in the tray; the C-end spreading hammer ensures that the packaging box is flat, and rice grains are prevented from overflowing during filling; the D-end flat paving hammer ensures that the rice grains after filling are regularly paved and prevents water from overflowing in the subsequent water injection process;

moreover, the filling speed of the filling device and the working frequency of the tiling hammer are matched with the working speed of the first conveyor belt 271, so that the filling and tiling operations are carried out orderly;

after the packaging boxes of the tray 20 are filled, the packaging boxes are conveyed to a sterilizing device through a first conveyor belt 271; the first conveyor belt 271 is positioned at a position 0.5-2cm below the sterilization device and is not contacted with the sterilization device;

as shown in fig. 2, the sterilization device mainly comprises a plurality of sterilization kettles 9 and an adapting device; the sterilizing kettle 9 is made of seamless steel materials, is divided into an inner layer and an outer layer, is filled with high-temperature-resistant heat-insulating materials, is a cuboid device with sealing doors capable of being sealed and opened on the left side and the right side, and can contain a tray 20 containing a packing box in the inner space; the device comprises a stop valve 10, a pressure release valve 19, a cuboid shell 35, a sealing ring and an electric suction door; the upper wall surface outside the cuboid shell 35 is provided with a stop valve 10, and the lower wall surface is provided with a pressure release valve 19; the stop valve 10 is used for controlling the input of high-temperature and high-pressure gas; the pressure release valve 19 is used for releasing high-temperature and high-pressure gas after sterilization; sterilizing the interior of the sterilizing kettle 9 by steam, wherein the steam temperature is 140 ℃, and the sterilizing time is maintained for 30-40 seconds;

the left electric suction door and the right electric suction door are marked as an inlet electric suction door 33 and an outlet electric suction door 34 and are used for the tray 20 to enter and exit the sterilization kettle 9; the adapting device comprises a pushing device 31 and a manipulator 32; the pushing device 31 is connected with the inlet end electric suction door 33; when the inlet end electric suction door 33 is opened, the corresponding starting pushing device 31 is used for pushing the tray 20 transported by the first conveyor belt 271 into the sterilization kettle 9; the manipulator 32 is connected with an outlet electric suction door 34; after the sterilization kettle 9 is sterilized, the outlet electric suction door 34 is opened, and the manipulator 32 is used for grabbing the tray 20 and returning the tray to the first conveyor belt 271 for transportation to the water injection device;

the first conveyor belt 271 penetrates through the lower part of the water injection device, the end, entering the water injection device, of the tray 20 is an E end, and the end, exiting the water injection device, of the tray 20 is an F end;

the water injection device comprises a water storage tank 7, a second filling spray head 212, a second metering device 82 and a stirrer 29; the lower end of the water storage tank 7 is connected with a plurality of second metering devices 82; the second filling spray head 212 is connected to the lower end of the second metering device 82; the second metering device 82 is used for metering the water injection amount in a single packaging box; the stirrer 29 is arranged at the end F of the water injection device and is used for uniformly stirring the rice grains and the water in the packaging box;

after passing through the water injection device, the tray 20 is conveyed to a primary packaging device through a first conveying belt 271; recording the end of the tray 20 entering the primary packaging device as a G end, and recording the end of the tray 20 exiting the primary packaging device as an H end;

the primary packaging device comprises a motor, a main rolling shaft 361, an auxiliary rolling shaft 362, 8 groups of first heating sealing plates 12 and a cutter; the 8 groups of heating sealing plates I12 are positioned in the middle area; two ends of the first heating sealing plate 12, namely the end G and the end H, are provided with a main roller 361 and an auxiliary roller 362 respectively; specifically, the end G and the end H are respectively fixed to the auxiliary roller 362; the lowest point of the auxiliary roller 362 is 1-2cm higher than that of the sealed package in the tray 20. The main roller 361 is driven by an output shaft of the motor, and further drives the auxiliary roller 362; the auxiliary rolling shaft 362 is higher than the inner packing box of the tray 20 and is used for pressing the sealing film to the position of the sealing edge of the packing box so as to be convenient for heating the sealing plate I12 for sealing; the main roller 361 is used for outputting a complete sealing film and collecting a waste sealing film;

the eight groups of first control heating plates 12 are positioned between the two groups of auxiliary rollers, wherein the size of each single control heating plate 12 is matched with that of a single packing box and used for sealing the packing box; and a group of opposite corners of the first control heating sealing plate 12 have no heating area, and a group of opposite corners of the packaging box are kept not to be sealed; the cutter is connected with the first control heating plate 12, surrounds the periphery of the first control heating plate 12 and is used for cutting the sealing films of all the packaging boxes;

two main rollers 361 and two auxiliary rollers 362 are respectively arranged at the G end and the H end and are used for outputting complete sealing films and collecting incomplete sealing films;

the rice conveying device, the rice storage device, the rice washing device, the filling device, the sterilizing device, the water injection device and the primary packaging device form a production line; the aseptic rice production device can be provided with two parallel production lines, as shown in figure 1, so as to meet the scale requirement of the steaming device.

After passing through the primary packaging device, the first conveyor belt 271 conveys the tray 20 into the inlet of the cooking device, and the tray 20 is conveyed into the cooking device through the conveying device 181; the cooking device comprises a cooking box body 13, a steam generating device, a pushing device 182, a conveying chain wheel device 37, a drainage system and a ventilation device; the cooking box body 13 is composed of an inner layer of stainless steel and an outer layer of stainless steel, and high-temperature-resistant heat-insulating materials are filled between the inner layer and the outer layer; the steam generating device, the drainage device and the ventilation device are all communicated with the cooking box body 13; wherein the steam generating device is used for delivering high-temperature steam to the cooking box body 13 as a heat source to cook rice;

the transmission chain wheel device 37 is arranged inside the cooking box body 13 and is arranged in an S shape; a feeding device 181 is arranged at the inlet of the cooking device; the tray 20 enters the transmission chain wheel device 37 of the cooking device through the feeding device 181, and the tray 20 is driven to move forwards in an S shape;

in addition, a temperature sensor is also arranged inside the cooking box body 13 and used for monitoring the temperature in the cooking box body; an outlet 131 is arranged at the tail end of the S-shaped conveying chain wheel device 37; the outlet 131 is positioned on the wall surface of the cooking box body 13 and is butted with the second conveyor belt 272; meanwhile, a pushing-out device 182 is further arranged inside the cooking box body 13, the height of the pushing-out device 182 is consistent with that of the second conveyor belt 272 and corresponds to the outlet 131, so that the cooked tray 20 can be smoothly pushed to the second conveyor belt 272;

the tray 20 is pushed to the second conveyor belt 272 by the pushing device 182 and then is transported to the inflating device by the second conveyor belt 272; the second conveyor belt 272 penetrates through the inflating device;

wherein, the inlet end of the inflating device is marked as M, the outlet end is marked as N, and the inflating device comprises a shell 141, an ultraviolet lamp 14, a nitrogen filling device and an air extracting device 15; the upper wall inside the shell 141 is provided with an ultraviolet lamp 14; the air draft device 15 comprises an air draft pipe and an air volume adjusting valve; the air draft device 15 is communicated with the shell 141, is arranged on the side wall of the shell 141 and is used for exchanging air inside and outside; the nitrogen filling device comprises a nitrogen adjusting valve and a nitrogen conveying pipe and is arranged at the outlet of the inflating device; the nitrogen conveying pipe conveys nitrogen through one unsealed part of the sealing film of the packaging box, and exhausts the air in the packaging box to prolong the shelf life;

the inflating device is connected with the secondary packaging device through a second conveying belt 272, and the packaging box filled with nitrogen is conveyed into the secondary packaging device through the second conveying belt 272; the secondary packaging device mainly comprises eight groups of heating sealing plates II 16 and a tray packaging box separating device;

eight groups of heating sealing plates 16 are used for completely sealing the packaging box, mainly aiming at the unsealed opposite corners of the sealing film of the packaging box and consolidating other parts; after sealing, the sealed packaging boxes enter a tray and packaging box separating device to separate trays and packaging boxes, the separated trays are collected in a centralized manner, and the separated packaging boxes are sequentially conveyed to the detecting device through a second conveying belt 272;

the detection device comprises a weight detector, a metal detector, a pressure detector and a rejecting device 17; the pressure detector, the weight detector and the metal detector are arranged behind the secondary packaging device; the weight detector is used for detecting whether the weight of the rice in the packaging box and the interior of the packaging box is in a qualified range; the metal detector is used for detecting whether metal impurities exist in the packaging box or not; the pressure detector is used for verifying that the packaging box is complete in sealing performance; the rejecting device 17 comprises a controller and a spring device; the controller is used for receiving detection information of the weight detector, the metal detector and the pressure detector; the controller is electrically connected with the spring device, and if the detection result is unqualified, the controller controls the spring device to pop out the unqualified product;

the qualified products after detection are conveyed to an output device through a second conveying belt 272; the output device comprises a counting device and a packaging device and is continuously conveyed; the output device comprises a counting device and a packaging device for counting and packaging;

the production process of the sterile rice production device comprises the following specific steps: rice grains are added into a rice conveying hopper 1, and the rice grains in the rice conveying hopper 1 are conveyed to a rice storage hopper I3 of a rice storage device through a conveying device of a vertical lifting machine 2; the lower end of the first rice storage hopper 3 is communicated with the sealing end of the mesh enclosure 30; a second rice storage hopper 6 is arranged below the opening end of the mesh enclosure 30, so that rice grains can be conveyed to the second rice storage hopper 6 through the opening end after being rotationally cleaned by the screw device 5; rice grains in the rice storage hopper II 6 are metered by the first metering device 81 and then input into a packaging box in the tray 20 through the first filling nozzle 211; before filling, the packaging box is firstly processed by a C-end flat spreading hammer, so that the packaging box is flat and standard; after filling, flatly paving the rice grains in the packing box by a D-end flatly paving hammer; after filling, the tray 20 is conveyed to a sterilization device through a first conveyor belt 271; the inlet end electric suction door 33 of the sterilization kettle 9 is opened, the outlet end electric suction door 34 is closed, the pushing device 31 pushes the tray into the sterilization kettle 9, and meanwhile, the inlet end electric suction door 33 is closed; closing the pressure release valve 19, opening the stop valve 10, inputting steam, closing the stop valve after input is finished, opening the pressure release valve 19 after 30-40 seconds of maintenance, removing the steam, opening the outlet end electric suction door 34 after the sterilization process is finished, and pulling the tray 20 out to the first conveyor belt 271 by the manipulator 32; the tray 20 is continuously conveyed to the irrigation device through a first conveyor belt 271; the water storage tank 7 of the water filling device is metered by a second metering device 82, sterile water is added into the packaging box through a second filling spray head 212, the rice water is uniformly stirred by a stirrer 29, and then the tray 20 is continuously conveyed to a primary film sealing device through a first conveyor belt 271; the packaging boxes in the tray 20 are heated and sealed by controlling the first heating plate 12, and redundant sealing films are removed by a cutter after sealing; the tray 20 is then conveyed to the cooking device by the feeding device 181; the tray 20 moves forwards in an S-shaped route through a conveying chain wheel device 37 of the cooking device, cooking is completed under the action of heat source steam, the tray 20 is pushed onto a second conveying belt 272 by a pushing device 182 and is continuously conveyed to an inflating device, after cooling, nitrogen is filled into an unsealed diagonal position at one position of a sealing film of the packaging box through a nitrogen filling device, and air in the packaging box is exhausted; the packaging box filled with nitrogen is conveyed into a secondary packaging device through a second conveying belt 272; and a plurality of groups of heating sealing plates 16 of the secondary packaging device are used for complete sealing, the tray 20 is separated by the tray packaging box separating device, the packaging box is separated from the tray 20 and enters the detection device, and qualified products enter the output device for packaging after the detection of the pressure detector, the weight detector and the metal detector.

In conclusion, the aseptic rice production device adopts the conveying belt to sequentially enable the tray to automatically run among the rice conveying device, the rice storage device, the rice washing device, the filling device, the sterilizing device, the water injection device, the primary packaging device, the cooking device, the inflating device, the secondary packaging device, the detection device and the output device under the control of the control device, so that continuous production is realized, and the production efficiency of equipment is greatly improved; the aseptic rice production line has two sterilization processes, wherein one sterilization process is to sterilize cleaned and soaked raw rice at high temperature and high pressure before cooking, and the sterilization process can kill microorganisms and spores; the secondary sterilization is after the cooking is finished, and the process can ensure that no bacteria residue exists when the lunch box is sealed; the shelf life of the rice is greatly prolonged by the two sterilization processes.

Description of the drawings: the above embodiments are only used for illustrating the present invention and do not limit the technical solution described in the present invention; thus, although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and within the scope and spirit of the following claims.

Claims (9)

1. An aseptic rice production device is characterized by comprising a rice conveying device, a rice storage device, a rice washing device, a filling device, a sterilizing device, a water injection device, a primary packaging device, a cooking device, an inflating device, a secondary packaging device, a detection device and an output device which are connected in sequence;

the device further comprises a tray (20) and control means; the rice conveying device, the rice storage device, the rice washing device, the filling device, the sterilizing device, the water injection device, the primary packaging device, the cooking device, the inflating device, the secondary packaging device, the detection device and the output device are electrically connected with the control device;

the rice conveying device comprises a rice conveying hopper (1) and a vertical elevator (2); the vertical lifter (2) comprises a conveying device; rice grains in the rice conveying hopper (1) are conveyed to a rice storage device through a conveying device of a vertical lifting machine (2);

the rice storage device comprises a first rice storage hopper (3), a first motor (251) and a screw rod (28); the lower end of the interior of the rice storage hopper I (3) is connected with a screw rod (28), and the top end of the screw rod (28) is provided with a motor I (251); an output shaft of the first motor (251) drives a screw rod (28) to rotate;

a rice washing device is arranged right below the rice storage hopper I (3);

the rice washing device comprises a rice washing groove (4), a spiral device (5), a second motor (252) and a mesh enclosure (30); the rice washing tank (4) is provided with a water inlet (23) and a water outlet (24), a screw device (5) is arranged in the rice washing tank (4), a second motor (252) is installed at one end of the screw device (5), and the screw device (5) is driven to operate by an output shaft of the second motor (252); the spiral device (5) is obliquely arranged, two ends of the spiral device are respectively connected with the first wall surface and the second wall surface of the rice washing groove (4), the connected areas are respectively marked as an area A and an area B, and the area A is higher than the area B; the wall surface of the rice washing groove (4) close to the rice feeding device is a second wall surface, and the wall surface corresponding to the second wall surface is a first wall surface;

the outer layer of the spiral device (5) is wrapped by a mesh enclosure (30), uniform through holes are formed in the surface of the mesh enclosure (30), and the diameter of each through hole is 0.2-1 mm; the mesh enclosure (30) is provided with an opening end and a sealing end, the opening end is higher than the sealing end, and the opening end is positioned in the area A and penetrates through the connecting wall surface of the rice washing tank (4); the opening end is higher than the liquid level of water in the rice washing tank (4), the sealing end is communicated with the lower end of the rice storage hopper I (3), and the joint is sealed;

the water inlet (23) and the water outlet (24) are arranged on the wall surface of the rice washing tank (4); the water inlet (23) is higher than the opening end of the mesh enclosure (30), and is arranged on the wall surface of the rice washing groove (4) together with the opening end; the water outlet (24) is arranged on the lower wall surface of the rice washing tank (4);

a filling device is arranged right below the opening end of the mesh enclosure (30); a first conveyor belt (271) is arranged below the filling device, a port of the first conveyor belt (271) entering the filling device is a C end, and a port of the first conveyor belt (20) exiting the filling device is a D end;

the filling device comprises a rice storage hopper II (6), a tiling hammer (22), a filling spray head I (211) and a meter I (81); the lower end of the second rice storage hopper (6) is connected with a plurality of first meters (81); two ends of the plurality of groups of meters I (81), namely the C end and the D end of the filling device are respectively provided with a flat laying hammer (22); the lower end of the first metering device (81) is connected with a first filling spray head (211); a first conveyor belt (271) is arranged below the first filling sprayer (211);

the filling device is connected with the sterilization device through a first conveyor belt (271);

the sterilization device mainly comprises a plurality of groups of sterilization kettles (9) and an adaptive device; the sterilization kettle (9) comprises a stop valve (10), a pressure release valve (19), a cuboid shell (35), a sealing ring and an electric suction door; the upper wall surface of the outer part of the cuboid shell (35) is provided with a stop valve (10), and the lower wall surface is provided with a pressure release valve (19); the electric suction door comprises an inlet end electric suction door (33) and an outlet end electric suction door (34);

the adapting device comprises a pushing device (31) and a mechanical arm (32); the pushing device (31) is connected with the inlet end electric suction door (33); the manipulator (32) is connected with the outlet end electric suction door (34);

the sterilization device is connected with the water injection device through a first conveyor belt (271); the first conveyor belt (271) penetrates through the lower part of the water injection device, one end, entering the water injection device, of the tray (20) is an E end, and one end, exiting the water injection device, of the tray (20) is an F end;

the water injection device comprises a water storage tank (7), a second filling spray head (212), a second metering device (82) and a stirrer (29); the lower end of the water storage tank (7) is connected with a plurality of second metering devices (82); the second filling spray head (212) is connected to the lower end of the second metering device (82); the stirrer (29) is arranged at the end F of the water injection device;

the water injection device is connected with the primary packaging device through a first conveyor belt (271); recording the end of the tray (20) entering the primary packaging device as a G end, and recording the end of the tray (20) exiting the primary packaging device as an H end;

the primary packaging device comprises a motor, a main rolling shaft (361), an auxiliary rolling shaft (362), a plurality of first heating sealing plates (12) and a cutter; two ends, namely the G end and the H end, of the plurality of heating sealing plates I (12) are provided with a main rolling shaft (361) and an auxiliary rolling shaft (362); an output shaft of the motor drives the main rolling shaft (361) to rotate, and further drives the auxiliary rolling shaft (362);

the size of the heating sealing plate I (12) is matched with that of a single packing box, and a group of opposite corners of the heating sealing plate I (12) are not provided with heating zones, namely, a group of opposite corners of the packing box are kept to be not sealed; the cutter is connected with the first heating sealing plate (12) and is used for cutting a sealing film of the sealed packaging box;

the primary packaging device is connected with the cooking device through a first conveyor belt (271);

the cooking device comprises a cooking box body (13), a steam generating device, a pushing device (182), a conveying chain wheel device (37), a drainage system and a ventilation device; the steam generating device, the drainage device and the ventilation device are all communicated with the cooking box body (13);

the conveying chain wheel device (37) is arranged in the cooking box body (13) and is arranged in an S shape; a feeding device (181) is also arranged at the inlet of the cooking device; the tray (20) enters a conveying chain wheel device (37) of the cooking device through a feeding device (181) and drives the tray (20) to move forwards in an S shape;

a temperature sensor is also arranged in the cooking box body (13); an outlet (131) is arranged at the tail end of the S-shaped conveying chain wheel device (37), and the outlet (131) is positioned on the wall surface of the cooking box body (13) and is butted with a second conveyor belt (272); a push-out device (182) is further arranged inside the cooking box body (13), and the height of the push-out device (182) is consistent with that of the second conveyor belt (272);

the cooking box body (13) is connected with an air charging device through a second conveying belt (272); the inflation device comprises a shell (141), an ultraviolet lamp (14), a nitrogen filling device and an air exhaust device (15); the upper wall inside the shell (141) is provided with an ultraviolet lamp (14); the air draft device (15) comprises an air draft pipe and an air volume adjusting valve; the air draft device (15) is arranged on the side wall of the shell (141) and communicated with the shell (141); the nitrogen filling device comprises a nitrogen adjusting valve and a nitrogen conveying pipe and is arranged at the outlet of the inflating device;

the inflating device is connected with the secondary packaging device through a second conveyor belt (272); the secondary packaging device comprises a plurality of groups of heating sealing plates II (16) and a tray packaging box separating device which are connected in sequence; the tray packaging box separating device is connected with the detection device through a second conveying belt (272); the detection device comprises a weight detector, a metal detector, a pressure detector and a rejection device (17); the pressure detector, the weight detector, the metal detector and the removing device (17) are arranged in sequence and are electrically connected with each other; the rejecting device (17) comprises a controller and a spring device, wherein the controller is used for receiving detection information of the weight detector, the metal detector and the pressure detector; the controller is electrically connected with the spring device;

the rejecting device (17) is connected with the output device through a second conveyor belt (272); the output device comprises a counting device and a packaging device.

2. An aseptic rice producing apparatus according to claim 1, wherein said control means includes a start module, a parameter setting module and a control module; the opening end is also provided with a closing cover so as to open and close the opening; the flow speed of the water inlet (23) is less than or equal to that of the water outlet (24).

3. An aseptic rice production apparatus as claimed in claim 1, wherein there are two sets of lay-flat hammers (22) located at the C and D ends of the filling apparatus, respectively, the lay-flat hammers (22) moving up and down to the area of the package boxes in the tray (20); the C-end flat paving hammer ensures that the packaging box is flat; and the D-end flat paving hammer ensures that the rice grains after filling are regularly and flatly paved.

4. An aseptic rice production apparatus as claimed in claim 1, wherein the filling speed of said filling means and the frequency of operation of said lay-up hammers (22) are adapted to the operating speed of said conveyor belt one (271) to ensure the orderly filling and laying operation.

5. An aseptic rice producing apparatus as claimed in claim 1, wherein said first conveyor (271) passes below the sterilizing device at a distance of 0.5-2 cm; the sterilization kettle (9) is made of seamless steel materials and is divided into an inner layer and an outer layer; the inner layer and the outer layer are filled with heat insulation materials; the cooking box body (13) is composed of an inner layer of stainless steel and an outer layer of stainless steel, and high-temperature-resistant heat-insulating materials are filled between the inner layer and the outer layer.

6. An aseptic rice production apparatus as claimed in claim 1, wherein the lowest point of said secondary rollers (362) is 1-2cm higher than the lowest point of the sealed packaging box in the tray (20); the two main rollers (361) and the two auxiliary rollers (362) are used for outputting complete sealing films and collecting incomplete sealing films.

7. An aseptic rice production apparatus as claimed in claim 1, wherein said rice feeding means, rice storage means, rice washing means, filling means, sterilizing means, water injecting means and primary packaging means constitute a production line; the aseptic rice production device can be provided with two parallel production lines.

8. An aseptic rice producing apparatus as claimed in claim 1, wherein said tray (20) is a device having a plurality of rectangular parallelepiped depressed regions having only rims for holding the packing box and serving to support the packing box; the tray is always horizontally upward; the first rice storage hopper (3) and the second rice storage hopper (6) are in inverted frustum pyramid shapes formed by welding stainless steel plates.

9. An aseptic rice production apparatus as claimed in claim 1, wherein the water injection means is used with aseptic water; the nitrogen in the inflating device is sterile clean nitrogen, the width of the second conveyor belt (272) at the detection device section is adjustable, and the adjusted width only allows one packaging box to pass through.

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