CN106720142B - Cellulose casing production line and cellulose casing production process - Google Patents
Cellulose casing production line and cellulose casing production process Download PDFInfo
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- CN106720142B CN106720142B CN201710065375.XA CN201710065375A CN106720142B CN 106720142 B CN106720142 B CN 106720142B CN 201710065375 A CN201710065375 A CN 201710065375A CN 106720142 B CN106720142 B CN 106720142B
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- sausage casing
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
- A22C13/0003—Apparatus for making sausage casings, e.g. simultaneously with stuffing artificial casings
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
- A22C13/0026—Chemical treatment of natural gut
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- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C13/00—Sausage casings
- A22C2013/0096—Sausage casings cellulosic
Abstract
The invention discloses a cellulose casing production line and a cellulose casing production process. The production process of the cellulose sausage casing comprises the following steps: A. extruding and solidifying: extruding the viscose by a nozzle, and carrying out coagulation reaction with an acid bath in an acid bath tank to generate a sleeve-shaped film; B. slow regeneration: spraying an acid bath to the sleeve-shaped film to control the degree of the sausage casing regeneration reaction; C. washing with water: cooling, and finishing the slow regeneration reaction in the step B; cleaning, desulfurizing and removing impurities and sulfides; D. plasticizing: fixing the moisture in the product of the step C; E. and (5) drying. Due to the adoption of the technical scheme, the invention has the advantages of high production efficiency, stable product quality and good diameter and thickness consistency, and is suitable for being jointly used by a plurality of spray heads.
Description
Technical Field
The invention relates to the field of production of cellulose casings, in particular to a cellulose casing production line and a cellulose casing production process.
Background
The casings of the prior art are usually natural casings made of the submucosa of the animal intestine containing collagen, but also various artificial casings or animal protein synthetic casings, such as processed collagen, alginates, cellulose and even plastics. The existing artificial sausage casing and synthetic sausage casing have low production automation degree, low strength and poor dimensional stability, and are not suitable for high-speed production.
Disclosure of Invention
The invention aims to overcome the defects and provide a cellulose casing production line and a cellulose casing production process with high production efficiency and low production cost.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the cellulose sausage casing production line comprises an extrusion solidification device, a slow regeneration device, a water washing system, a plasticizing system and a drying system.
As an improvement: the washing system comprises a freezing water tank, a pickling tank, a rinsing tank and a desulfurization tank which are arranged in sequence.
As an improvement: the number of the rinsing baths is multiple, water is supplied in an overflow mode, water flows in from the last rinsing bath, is supplied to the previous rinsing bath sequentially through overflow, and is discharged from the first rinsing bath.
As an improvement: the freezing water tank or the pickling tank or the rinsing tank or the desulfurization tank is provided with a plurality of floating shafts and bottom shafts.
As an improvement: the drying system comprises a pre-drying zone and a dryer.
The production process of the cellulose sausage casing comprises the following steps:
A. extruding and solidifying: extruding the viscose by a nozzle, and carrying out coagulation reaction with an acid bath in an acid bath tank to generate a sleeve-shaped film;
B. slow regeneration: spraying acid bath to the casing film to control the regeneration reaction degree of the casing;
C. washing with water: cooling, and finishing the slow regeneration reaction in the step B; cleaning, desulfurizing and removing impurities and sulfides;
D. plasticizing: fixing the moisture in the product of the step C;
E. and (5) drying.
As an improvement: in the step C, the product obtained in the step B sequentially passes through an acid washing tank, a rinsing tank and a desulfurization tank, the acid washing tank is used for removing sulfides generated on the sausage casing due to extrusion regeneration reaction through reaction with acid, and the desulfurization tank is used for removing sulfides possibly attached to the surface of the sausage casing.
As an improvement: the concentration of the acid bath of the pickling tank is 20-100g/l, and the temperature range is 20-50 ℃.
As an improvement: the water washing tank uses softened water, the temperature range is 30-60 ℃, and the washing dosage is 200-300L/min.
As an improvement: the desulfurizer used in the desulfurization tank is NaOH, the pH is 7.5-9.0, the temperature is controlled at 40-45 ℃, and the desulfurization water flow speed is 80-120L/min.
Due to the adoption of the technical scheme, the invention has the advantages of high production efficiency, stable product quality and good diameter and thickness consistency, and is suitable for being jointly used by a plurality of spray heads.
The invention is further illustrated by the following figures and examples.
Drawings
FIG. 1 is a schematic structural view of a cellulose casing production line according to the present invention;
FIG. 2 is a schematic structural diagram of an extrusion and solidification device in a cellulose casing production line;
FIG. 3 is a schematic structural view of an extrusion rinsing bath in the cellulose casing production line of the present invention;
FIG. 4 is a schematic structural view of an extrusion pickling tank in the cellulose casing production line of the present invention;
in the figure: 1-a spray head; 2-mandrel; 3-acid bath; 4-a rinsing bath; 5, water inlet pipe; 6-water outlet pipe; 7-a pickling tank; 8-a floating shaft; 9-bottom axis; 10-casing.
Detailed Description
Example (b):
as shown in figures 1 to 4, the cellulose sausage casing production line comprises an extrusion solidification device, a slow regeneration device, a water washing system, a plasticizing system, a drying system, a humidifier and a coiling machine
The drying system comprises a pre-drying area and a dryer.
The extrusion regeneration device comprises a spray head 1 and an acid bath 3, wherein the spray head 1 is connected with a mandrel 2, and the extrusion regeneration device is an extrusion molding area of a cellulose casing 10.
The slow-regeneration device is an area where the sausage casing is slowly regenerated. The cellulose sleeve generated by the extrusion regeneration device through regeneration reaction is subjected to fine adjustment of various indexes in the area, including the folding diameter and the color of the casing 10 and the thickness uniformity of the casing 10.
The washing system comprises a freezing water tank, four pickling tanks 7, ten washing tanks 4 and a desulfurization tank which are arranged in sequence. The sausage casing 10 sequentially passes through the floating shaft and the bottom shaft in a shuttling mode, and the temperature between the grooves rises sequentially, so that the quality of the sausage casing 10 is prevented from being influenced by rapid changes of cold and heat.
The freezing water tank or the pickling tank 7 or the rinsing tank 4 or the desulfurization tank is provided with seven floating shafts 8 and six bottom shafts 9.
Ten wash bowl 4 adopt the overflow mode to supply water, and water passes through inlet tube 5 and flows in from last wash bowl 4, loops through the overflow and supplies to former wash bowl 4, discharges to effluent disposal system from first wash bowl 4 through outlet pipe 6.
The desulfurization tank is used for independently supplying and draining water.
The number of the glycerine grooves is two, and the glycerine grooves are provided with seven floating shafts 8 and six bottom shafts 9.
Of course, the number of the chilled water tanks, the pickling tank 7, the rinsing tank 4, the desulfurization tank, and the glycerin tank may be other. The number of the floating shafts 8 and the bottom shafts 9 can be five or six.
The pre-drying area is an open area, the pre-drying area is provided with an upper shaft and a lower shaft, and the sausage casing 10 sequentially passes through the upper shaft and the lower shaft in a shuttling mode.
The length of the dryer is 90 meters, the dryer is divided into an upper section and a lower section, a turning connecting part is arranged between the upper section and the lower section, and the sausage casing 10 enters the upper section or the lower section through the turning connecting part. And a diameter measuring instrument is arranged at the outlet of the dryer.
The diameter measuring instrument is a laser diameter measuring instrument, and the change range of the folded diameter of the casing 10 is controlled within a standard value of +/-2 mm.
The humidifier is 40 meters in length.
The coiler includes a tension control system, a coiling arm, and a coiling disc. The winding speed of the winder is 40-60m/min.
The production process of the cellulose sausage casing comprises the following steps:
preparing viscose by alkalizing raw material pulp, ageing, sulfonating, ageing and dissolving. The technological indexes of the prepared viscose glue are that the temperature is 22-30 ℃, the viscosity is more than 110 seconds, and the content of alpha cellulose is 7.1-8.6%.
Preferably, the temperature may be 22, 26 or 30 ℃; the viscosity may be 110, 120 or 140 seconds; the alpha cellulose content may be 7.1%, 7.8% or 8.6%.
A. Extruding and solidifying, wherein the spray head 1 extrudes viscose, and the viscose and an acid bath in the acid bath 3 carry out regeneration reaction to generate a sleeve-shaped film; the temperature range of the viscose is usually 22-30 ℃, the viscosity is more than 150 seconds, the ammonia value is 7.0-8.5, and the pressure of the viscose supplied when the viscose is extruded by the spray head 1 is 2-3 bar.
Preferably, the temperature may be 22, 26 or 30 ℃; the viscosity may be 150, 170 or 180 seconds; the ammonia value may be 7.0, 7.8 or 8.5; the glue supply pressure during extrusion from the nozzle 1 may be 2, 2.5 or 3 bar.
The process specification for the acid bath is usually 35-46 deg.C, the sulfuric acid concentration is 130-150 g/l, and the sodium sulfate concentration is 280-350 g/l.
Preferably, the temperature may be 35, 40 or 46 ℃; the sulfuric acid concentration may be 130, 140 or 150 grams/liter; the sodium sulfate salt concentration may be 280, 300 or 350 grams/liter.
B. Slowly regenerating, spraying acid to the sleeve-shaped film, and controlling the regeneration reaction degree of the casing 10; the color change of the casing is usually used as an index. The color of the casing immediately after it is produced from the acid bath 3 is dark brown, and gradually turns white after it is slowly regenerated, indicating that the regeneration reaction is almost completed. The concentration of the acid spraying is usually 90-110 g/L sulfuric acid, the temperature is 30-35 ℃, the acid spraying amount is determined by the caliber of the sausage casing and is 20-30L/min, and the acid spraying pressure is 2-3 bar.
Preferably, the sulfuric acid may be 90, 100 or 110 g/l, and the temperature may be 30, 32 or 35 ℃; the acid spray pressure may be 2, 2.5 or 3 bar and the acid spray amount may be 20, 25 or 30L/min.
C. Washing with water: cooling, and finishing the slow regeneration reaction in the step B; cleaning, desulfurizing and removing impurities and sulfides;
wherein, the temperature reduction uses chilled water, and the temperature control range is 10-18 ℃. The main purpose is to cool down, thereby stopping the slow reaction of the slow regeneration device and completely shaping the sausage casing.
Preferably, the temperature control range may be 10, 15 or 18 ℃.
The cleaning and the desulfurization comprise acid cleaning, water cleaning and desulfurization, wherein the acid cleaning uses sulfuric acid with the concentration of 20-100g/1, and can also use other hydrochloric acid with the temperature range of 20-50 ℃, and the main function is to remove impurities such as sulfide and the like generated on the sausage casing due to extrusion regeneration reaction through reaction with acid.
Preferably, the acid bath concentration may be 20, 60 or 100g/l; the temperature may be 20, 35 or 50 ℃.
The water washing uses softened water, the temperature range is 30-60 ℃, and the water washing dosage is 200-300L/min.
Preferably, the temperature can be 30, 45 or 60 ℃; the amount of water washing may be 200, 250 or 300L/min.
The purpose of the devulcanization is to remove possible incidental sulfides from the surface of the casing which, if not cleaned sufficiently, often lead to yellowing or darkening in color and a sulfurous smell of the final casing product. The desulfurizer used for desulfurization is NaOH, the pH value is 7.5-9.0, the residual sulfide is removed through chemical reaction, and the temperature is controlled at 40-45 ℃. The desulfurization water flow rate is usually 80-120L/min. The sweet oil groove has the functions of plasticizing the sausage casing film and fixing the water content in the sausage casing, so that the sausage casing can obtain the water retention performance and the air permeability.
Preferably, the pH may be 7.5, 8.0 or 9.0; the temperature may be 40, 42 or 45 ℃; the water flow rate may be 80, 100 or 120L/min. D. Plasticizing, namely fixing the water in the product obtained in the step C to ensure that the sausage casing 10 obtains water retention performance and air permeability; glycerol is used for the plasticization, the concentration of which is in the range of 70-80g/l and the temperature in the range of 60-80 ℃.
Preferably, the concentration may be 70, 75 or 80g/l; the temperature may be 60, 70 or 80 ℃.
E. Drying, firstly, pre-drying is carried out, so that the sausage casing 10 is fully exposed to the air, the moisture of the sausage casing is naturally lost, the moisture in the sausage casing is uniformly distributed, and then the sausage casing can enter a dryer for drying.
The temperature range of hot air in the drier is 90-140 ℃. The moisture content of the casing entering the dryer is 200-250% and the moisture content of the casing leaving the dryer is 2-8%.
Preferably, the temperature of the hot air can be 90, 120 or 140 ℃; the moisture content of the casing as it enters the dryer may be 200%, 220% or 250%; the moisture content upon leaving the dryer may be 2%, 5% or 8%.
F. Moistening, drying, and allowing the sausage casing to enter a humidifier with temperature controlled at 40-50 deg.C and humidity controlled at above 90%. The moisture range of the casing as it leaves the humidifier is 8% -13%.
Preferably, the temperature may be 40, 45 or 50 ℃; the moisture range of the casing as it leaves the humidifier is 8%, 10% or 13%.
G. And in the coiling step, the humidified casing flat film is coiled into a coil to obtain a final production line product, namely a reel casing.
By using the invention, a production line can contain 18 cellulose sausage casings spray heads, and the caliber of the sausage casing 10 ranges from American standard 15 to 40.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (1)
1. The cellulose sausage casing production line is used for producing the cellulose sausage casing, and is characterized in that: the cellulose sausage casing production line comprises an extrusion solidification device, a slow regeneration device, a water washing system, a plasticizing system, a drying system, a humidifier and a coiler;
the drying system comprises a pre-drying area and a dryer;
the extrusion and solidification device comprises a spray head (1) and an acid bath (3), the spray head (1) is connected with a mandrel (2), and the extrusion and solidification device is an extrusion molding area of a cellulose casing (10);
the slow regeneration device is a region where the sausage casing (10) is slowly regenerated, and the cellulose sleeve generated by the solidification reaction of the extrusion solidification device is used for fine adjustment of indexes of the diameter of the sausage casing (10), color and thickness uniformity in the region;
the washing system comprises a freezing water tank, a pickling tank (7), a washing tank (4) and a desulfurization tank which are arranged in sequence;
the freezing water tank or the pickling tank (7) or the rinsing tank (4) or the desulfurization tank is provided with a plurality of floating shafts (8) and bottom shafts (9), the sausage casing (10) sequentially shuttles between the floating shafts (8) and the bottom shafts (9), and the temperature between the tanks is sequentially increased;
the number of the rinsing baths (4) is multiple, water is supplied in an overflow mode, water flows in from the last rinsing bath (4), is sequentially supplied to the previous rinsing bath (4) through overflow, and is discharged from the first rinsing bath (4);
the desulfurization tank is used for independently supplying and draining water;
the pre-drying area is an open area, the pre-drying area is provided with an upper shaft and a lower shaft, and the sausage casing (10) sequentially passes through the upper shaft and the lower shaft in a shuttling manner;
the dryer is divided into an upper section and a lower section, a turning connecting part is arranged between the upper section and the lower section, and the sausage casing (10) enters the upper section or the lower section through the turning connecting part; a diameter measuring instrument is arranged at the outlet of the dryer;
the diameter caliper is a laser diameter caliper, and the change range of the diameter of the sausage casing (10) is controlled within the standard value of +/-2 mm;
the length of the humidifier is 40 meters;
the coiling machine comprises a tension control system, a coiling arm and a coiling disc;
the production process of the cellulose sausage casing adopts the production line of the cellulose sausage casing to produce, and comprises the following steps:
preparing viscose by alkalizing, aging, sulfonating, aging and dissolving raw material pulp by a continuous soaking method; the technological indexes of the prepared viscose glue are that the temperature is 22-30 ℃, the viscosity is more than 110 seconds, and the content of alpha cellulose is 7.1-8.6 percent;
A. extruding and solidifying: extruding the viscose glue from the spray head (1) to perform a solidification reaction with an acid bath in the acid bath tank (3) to generate a sleeve-shaped film; the temperature range of the viscose is 22-30 ℃, the viscosity is more than 150 seconds, the ammonia value is 7.0-8.5, and the pressure of the viscose supplied when the viscose is extruded by the nozzle (1) is 2-3 bar; the technological index of the acid bath is 35-46 ℃, the acid bath adopts a sulfuric acid bath, the concentration of sulfuric acid is 130-150 g/L, and the concentration requirement of sodium sulfate salt is 280-350 g/L;
B. slow regeneration: spraying an acid bath to the sleeve-shaped film to control the degree of the regeneration reaction of the casing (10); by using the color change of the sausage casing as an index, the color of the sausage casing is required to be gradually changed into white from the dark brown color when the sausage casing is generated from the acid bath (3) immediately after slow regeneration, and the regeneration reaction is basically finished; the concentration of the acid spraying is 90-110 g/L of sulfuric acid, the temperature is 30-35 ℃, the acid spraying amount is determined by the caliber of the casing, is 20-30L/min, and the acid spraying pressure is 2-3 bar;
C. washing with water: the product in the step B sequentially passes through a pickling tank (7), a rinsing tank (4) and a desulfurization tank, the temperature is reduced, and the slow regeneration reaction in the step B is finished; cleaning, desulfurizing and removing impurities and sulfides; cooling with chilled water at 10-18 deg.C to stop slow reaction of slow regeneration device and completely shape the casing;
wherein the pickling concentration of the pickling tank (7) is 20-100g/l, and the temperature range is 20-50 ℃;
the water washing tank (4) uses softened water, the temperature range is 30-60 ℃, and the washing dosage is 200-300L/min;
the desulfurizer used by the desulfurization tank is NaOH, the pH is 7.5-9.0, the temperature is controlled at 40-45 ℃, and the desulfurization water flow speed is 80-120L/min;
D. plasticizing: fixing the moisture in the product of the step C; the plasticizing uses glycerin, the concentration range of which is 70-80g/l, and the temperature range of which is 60-80 ℃;
E. drying; firstly, pre-drying is carried out, so that the sausage casing (10) is fully exposed in the air, the moisture of the sausage casing (10) is naturally lost, the moisture in the sausage casing (10) is uniformly distributed, and then the sausage casing is dried in a dryer;
the temperature range of hot air in the drier is between 90 and 140 ℃; the moisture content of the casing (10) entering the dryer is 200-250%, and the moisture content of the casing leaving the dryer is 2-8%;
F. humidifying, namely after drying, enabling the sausage casing (10) to enter a humidifier, controlling the temperature to be 40-50 ℃, controlling the humidity in the humidifier to be more than 90%, and controlling the humidity range of the sausage casing leaving the humidifier to be 8% -13%;
G. and (4) coiling, namely coiling the moisturized casing flat film into a coil to obtain the final production line product, namely the reel casing.
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| CN201710065375.XA CN106720142B (en) | 2017-01-24 | 2017-01-24 | Cellulose casing production line and cellulose casing production process |
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| CN201710065375.XA CN106720142B (en) | 2017-01-24 | 2017-01-24 | Cellulose casing production line and cellulose casing production process |
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| CN106720142B true CN106720142B (en) | 2022-12-06 |
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