CN111838325B - Production process of additive-free dried beancurd sticks and automatic pulp brushing machine thereof - Google Patents
Production process of additive-free dried beancurd sticks and automatic pulp brushing machine thereof Download PDFInfo
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- CN111838325B CN111838325B CN202010774349.6A CN202010774349A CN111838325B CN 111838325 B CN111838325 B CN 111838325B CN 202010774349 A CN202010774349 A CN 202010774349A CN 111838325 B CN111838325 B CN 111838325B
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C20/00—Cheese substitutes
- A23C20/02—Cheese substitutes containing neither milk components, nor caseinate, nor lactose, as sources of fats, proteins or carbohydrates
- A23C20/025—Cheese substitutes containing neither milk components, nor caseinate, nor lactose, as sources of fats, proteins or carbohydrates mainly containing proteins from pulses or oilseeds
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- Beans For Foods Or Fodder (AREA)
Abstract
The invention discloses a production process of a dried beancurd stick without adding, which comprises the steps of cleaning, soaking, pulping, boiling, peeling, pulping, drying, and pulping by an automatic pulp brushing machine; the automatic pulp brushing machine comprises a spraying part, a pulp brushing part and a conveying track, wherein the spraying part is provided with an incoming pipe which is in butt joint with an external skinning pool, the incoming pipe is connected with the spraying part, the spraying part comprises a conical material leakage hopper, a plurality of material leakage holes are formed in the bottom of the spraying part, a material leakage gate is arranged, the pulp brushing part is arranged below the spraying part and comprises a movable brush head and a lifting mechanism, and the brush head consists of two rows of relatively arranged brush hairs. The concentrated bottom pulp is brushed on the dried beancurd stick semi-finished product through the automatic pulp brushing machine, so that the utilization of raw materials is maximized, and the bean fragrance and nutrition of the dried beancurd sticks are increased. The automatic slurry feeder is with double-deck pipe automatic slurry feeding, and thick liquid falls on the dried beancurd stick, and the automatic slurry feeding of reuse double-end brush is more comprehensive even than traditional manual sizing, and has improved work efficiency greatly.
Description
Technical Field
The invention relates to the field of food processing, in particular to a production process of a dried beancurd stick without adding and an automatic pulp brushing machine thereof.
Background
Dried beancurd sticks, also called beancurd sheets, are popular traditional food, and are prepared by heating and boiling soybean milk, preserving heat for a period of time, forming a layer of film on the surface, picking out the film, drooping the film into branch strips, and drying the film.
The production process of dried beancurd sticks generally comprises the steps of cleaning, soaking, pulping, filtering, boiling, peeling and drying, and the soybean milk is limited in peeling times, so that the soybean milk cannot be molded generally for about ten times, the residual slurry is generally directly poured out or used as animal feed, and bean dregs filtered by the filtering step are also treated as feed, so that raw materials are wasted, and the prepared dried beancurd sticks are incomplete in nutrition.
Disclosure of Invention
The invention aims to provide a production process of a dried beancurd stick without adding and an automatic soybean brushing machine thereof, so that soybean milk is fully utilized in the production of the dried beancurd stick, the bean flavor and nutrition of the dried beancurd stick are increased, and meanwhile, automatic sizing is realized.
The technical problems solved by the invention can be realized by adopting the following technical scheme:
a production process of a dried beancurd stick without adding is characterized by comprising the following steps: comprises the steps of cleaning, soaking, pulping, boiling, peeling, pulping, sizing and drying; the peeling step is to send the boiled soybean milk into a peeling pool for peeling to prepare a dried beancurd stick semi-finished product, the temperature of the peeling pool is controlled between 70 ℃ and 80 ℃, after the slurry in the peeling pool cannot be peeled, the slurry in the peeling pool is boiled and concentrated until the concentration of the slurry is 30% -40%, the boiling of the slurry is stopped, the concentrated slurry is brushed onto the dried beancurd stick semi-finished product lifted in the peeling step, and then the dried beancurd stick semi-finished product is sent into a baking room for baking, so that the dried beancurd stick without addition of the dried beancurd stick is prepared.
Preferably, the sodium carbonate is added in the proportion of 0.2-0.3% of the soybeans in the soaking process.
Preferably, the pulping process adopts a large-scale soybean pulping system of a high-power triple pulping machine, and the large-scale soybean pulping system consists of three parts of soybean suction, pulping and control.
Preferably, the skinning pond adopts steam to cook pulp, and an automatic temperature control system is arranged to control the skinning and pulp boiling temperature.
Preferably, the drying adopts automatic air energy high-temperature heat pump energy-saving drying equipment to carry out sulfur-free stepped constant-temperature drying, and mainly comprises the following steps: first step-a large amount of dehumidification: dried beancurd sticks are put into a baking room to be dried for 4 hours at 65 ℃; and a second step, constant temperature and humidity drying: the temperature in the drying room is adjusted to 60 ℃, the relative humidity is controlled below 50%, and the drying time is 6 hours; third step-humidity control: the temperature in the drying room is reduced again, the temperature is controlled at 58 ℃, the drying time is controlled at 6-8 hours, the humidity of the drying room is reduced to below 15%, and the humidity of the dried beancurd sticks is controlled at 10-13%.
Preferably, the sizing process is performed by an automatic brushing machine.
The automatic beancurd stick brushing machine comprises a spraying part, a pulp brushing part and a conveying track, wherein the spraying part and the pulp brushing part are arranged above the conveying track, and a beancurd skin airing rod is hung on the conveying track; the spraying part is provided with an incoming pipe which is in butt joint with an external skinning pond, the incoming pipe is a double-layer half pipe and is provided with an inner pipe and an outer pipe, an impeller is arranged above the inner pipe, and the impeller is connected with an impeller motor; the feeding pipe is connected with the spraying part, the spraying part comprises a conical hopper, a plurality of leakage holes are formed in the bottom of the conical hopper, leakage gates are arranged on the leakage holes, and the leakage gates are controlled to open and close by gate cylinders arranged at two ends; the conical hopper is fixed on the ground through a bracket;
the lower part of the spraying part is provided with a slurry brushing part, the slurry brushing part comprises a movable brush head and a lifting mechanism, the brush head consists of two rows of bristles which are oppositely arranged, the brush head is arranged on a group of two clamping jaw oil cylinders, and the lifting mechanism is arranged on brackets at two sides of the conical hopper; the clamping jaw oil cylinder is arranged on the lifting mechanism.
Preferably, a rapid air drying area is arranged in front of the spraying part, a plurality of flat mouth air openings are arranged above the conveying track, and the flat mouth air openings are connected with an external fan through an air supply pipeline.
Preferably, the impeller is sleeved with a detachable blocking plate.
Preferably, a receiving hopper is arranged below the spraying part and the brushing part.
The concentrated bottom pulp is brushed on the dried beancurd stick semi-finished product through the automatic pulp brushing machine, so that the utilization of raw materials is maximized, and the bean fragrance and nutrition of the dried beancurd sticks are increased. The automatic slurry feeder is with double-deck pipe automatic slurry feeding, and thick liquid falls on the dried beancurd stick, and the automatic slurry feeding of reuse double-end brush is more comprehensive even than traditional manual sizing, and has improved work efficiency greatly.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the automatic pulp grinder.
Fig. 3 is a schematic structural view of the shower portion and the brush portion.
Fig. 4 is a schematic top view of a portion of the shower section.
Fig. 5 is a schematic diagram of the structure of the rapid air drying zone.
In the figure, a skinning pond 1, a drying rod 2, an automatic slurry brushing machine 3, a conveying track 4, a scraping plate 11, a spraying part 31, a slurry brushing part 32, a rapid air drying area 33, a material feeding pipe 34, a material receiving hopper 35, an inner pipe 341, an outer pipe 342, an impeller 343, an impeller 344, an impeller motor 345, a baffle plate 311, a conical material leakage hopper 312, a material leakage hole 313, a material leakage gate 313, a gate cylinder 314, a support 315, a brush head 321, a lifting mechanism 322, a clamping jaw cylinder 323, a flat mouth air inlet 331 and an air supply pipeline 332.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
The invention relates to a production process of a dried beancurd stick without adding additives, which comprises the steps of cleaning, soaking, pulping, boiling, peeling, sizing and drying.
The cleaning and soaking are the same as the prior art, and beans (soybeans, black beans and the like) with no mildew and excellent quality are selected for cleaning, and then soaked for about 7.5 hours at the normal temperature of 25 ℃. In the soaking process, a proper amount of sodium carbonate (NaCO 3) can be added according to the proportion of 0.2-0.3% of soybean, so that the solubility of protein can be improved, and the pulp yield can be improved.
The soaked beans are pumped into a pulping machine for pulping through a vacuum pump, and the pulping process adopts a large-scale soybean pulping system of a high-power multi-joint pulping machine, can be provided with two or three pulping processes, consists of three parts of bean suction, pulping and control, and pumps the beans into a material box through the vacuum bean suction pump, so that manual bean feeding is omitted. The bean dregs are automatically lifted into the next pulping machine through the dreg feeding machine, the beans are subjected to superfine pulping for many times through the high-speed pulping machine, the conical bottom pulp barrels are arranged below the pulping machine and used for receiving the ground pulp, the pulp ground by the first pulping machine is pumped into the second pulping machine from the first conical bottom pulp barrel by the vacuum pump to be subjected to secondary pulping, and falls into the second conical bottom pulp barrel, and the like, and then the pulp in the second conical bottom pulp barrel at the tail end is pumped into the pulp boiling pool to be boiled. The lower part of the conical bottom slurry barrel is provided with an openable sealing bottom cover, and the bottom cover is only required to be taken down for washing during cleaning, so that the conical bottom slurry barrel can ensure the maximum utilization of raw materials and avoid waste.
After multiple superfine grinding, the beans are completely crushed, no redundant bean dregs exist, and the beans can be directly boiled without filtering. Steam is adopted for boiling, and a steam pipe is paved in the boiling tank, so that burning can be avoided. An automatic temperature control system is arranged in the boiling tank, after the soybean milk is boiled to be more than 100 ℃, the steam delivery is automatically stopped, a feed pump is started, and the boiled soybean milk is sent into the skinning tank 1 for the skinning process. The crust pool 1 is of a multi-layer structure, the upper layer is a soybean milk placing pool, the middle layer is water, the lower layer is a heating layer, the heating layer heats the middle layer, and the water vapor heats the upper layer soybean milk placing pool. The soybean milk placing pool is divided into a plurality of skinning areas by the partition plates, skinning is facilitated, the skinning pool 1 is provided with an automatic temperature control device, and the temperature in the soybean milk placing pool is kept between 70 ℃ and 80 ℃, so that skinning can be fast performed.
The bean skin is lifted manually, and natural folds are folded and hung on the airing rod 2 after each lifted, so that a dried bean semi-finished product is manufactured, a plurality of concave surfaces (not shown in the figure) are arranged on the airing rod 2, the bean skin is hung at the concave surfaces, and edible oil is pre-brushed on the concave surfaces to prevent the bean skin from adhering. After the soybean milk in the soybean milk placing pool is peeled for many times until the crust cannot be lifted, the partition plate is taken down, the heating layer is used for boiling and concentrating the slurry in the soybean milk placing pool until the concentration of the slurry is 30% -40%, the temperature of concentrating and boiling the slurry is controlled to be above 118 ℃, so that Maillard reaction can occur during boiling the slurry, and the soybean flavor is more intense.
The concentrated thick paste is sent to an automatic pulp brushing machine 3 through a pipeline, the dried beancurd stick semi-finished products in the automatic pulp brushing machine 3 are subjected to multi-channel sizing, and then the dried beancurd sticks are sent to a baking room for drying. The airing rods 2 are hung with bean skin and then transferred onto the conveying track 4, the bean skin is sent into the automatic pulp brushing machine 3 for sizing through the conveying track 4, two ends of the airing rods 2 are clamped on the conveying track 4 so as to prevent falling, and a plurality of airing rods 2 are placed at equal intervals. The sizing is to brush concentrated slurry on the outer surface of the semi-finished product of the dried beancurd stick, so that the prepared dried beancurd stick has stronger flavor, and the bean dreg slurry is fully utilized and has more comprehensive nutrition.
The drying adopts automatic air energy high-temperature heat pump energy-saving drying equipment to carry out sulfur-free step-type constant-temperature drying, and mainly comprises the following steps: first step-a large amount of dehumidification: the dried beancurd sticks are put into a baking room for baking, the temperature is set to 65 ℃, a large amount of moisture is required to be discharged at the moment, the moisture cannot stay in the baking room for too long, and after 4 hours, the inside of the dried beancurd sticks is kept at a certain dryness. And a second step, constant temperature and humidity drying: the temperature in the drying room is adjusted to 60 ℃, the relative humidity is controlled below 50%, and the drying time is 6 hours, so that the surface of the dried beancurd sticks has certain brightness. Third step-humidity control: the temperature in the drying room is reduced again, the temperature is controlled at 58 ℃, the drying time is controlled at about 6-8 hours, the drying room is kept until the humidity of the drying room is reduced to below 15%, and the humidity of the dried beancurd sticks is generally controlled at about 10-13%. The air energy high-temperature heat pump energy-saving drying equipment has high whole-course automation degree, can realize accurate temperature control and humidity control, can strictly finish the whole drying process of dried beancurd sticks according to the process requirements under the unattended condition, and the dried beancurd sticks can reach a higher level in terms of color and luster, surface oil brightness and toughness of the dried beancurd sticks, so that the dried beancurd sticks are good in sales, small in loss and low in drying cost.
Fig. 1 to 5 are preferred embodiments of the present invention, and the automatic slurry brushing machine 3 for sizing of the present invention includes a spraying portion 31, a slurry brushing portion 32, and a rapid air drying area 33, wherein the spraying portion 31 is provided with a feeding pipe 34, which is connected to the crust pool 1, one end of the feeding pipe 34 is disposed below a corner of the bottom of the soymilk placing pool, and a valve (not shown in the figure) is provided. An automatic scraping plate 11 is arranged in the soybean milk placing pool, two ends of the scraping plate 11 are connected with screw rod traversing devices, the screw rod traversing devices are connected with an external control system, when the thickness of the thick slurry reaches the requirement, the heating layer stops heating, the scraping plate 11 slowly scrapes the thick slurry in the pool to one side of the soybean milk placing pool, which is provided with a feed pipe 34, and an inclined groove (not shown in the figure) can be arranged in the side edge, so that the slurry scraped to the position flows into the feed pipe 34 by self weight. The feeding pipe 34 is a double-layer half pipe, the inner pipe 341 is used for conveying concentrated slurry, the outer pipe 342 is a condensate water pipeline, the slurry is rapidly cooled in the conveying process, and the phenomenon that the slurry cannot form a film and is easy to fall off due to too high temperature in the process of sizing is avoided. Because thick, the mobility is poor, is equipped with impeller 343 in inner tube 341 top, and impeller 343 is parallel to inner tube 341 setting, and driven rotatory by impeller motor 344, and direction of rotation is unanimous with the pay-off direction, and the blade is the silica gel material, pushes away the thick liquid to automatic brush thick liquid machine 3 when rotating, in order to prevent that the thick liquid from splashing, impeller 343 low-speed rotation, is equipped with at impeller 343 overcoat simultaneously and can dismantle barrier plate 345, and impeller 343 can set up a plurality ofly according to the pipe length.
The other end of the feed pipe 34 is connected with the spraying part 31, the spraying part 31 comprises a conical hopper 311, a plurality of material leakage holes 312 are formed in the bottom of the conical hopper 311, and the material leakage holes 312 are in one-to-one correspondence with the concave surfaces 21 of the airing rods 2. The material leakage hole 312 is provided with a material leakage gate 313, the material leakage gate 313 is controlled to open and close by gate oil cylinders 314 arranged at two ends, and the gate oil cylinders 314 are connected with an external control system. The conveying track 4 conveys the dried beancurd sticks 2 hung with the beancurd sheets to the lower part of the conical leakage hopper 311, the gate oil cylinder 314 is started, the leakage gate 313 is opened, and the slurry in the conical leakage hopper 311 falls onto dried beancurd stick semi-finished products of the dried beancurd sticks 2 through the leakage holes 312. The conical hopper 311 is fixed to the ground by a bracket 315.
The lower part of the spraying part 31 is provided with a slurry brushing part 32, the slurry brushing part 32 comprises a movable brush head 321 and a lifting mechanism 322, the brush head 321 is composed of two rows of relatively arranged brush hair, the brush hair is made of soft silica gel, the brush head 321 is arranged on a group of two clamping jaw oil cylinders 323, and the opening and the closing are controlled by the clamping jaw oil cylinders 323. The lifting mechanism 322 is a screw rod sliding block mechanism, or a common lifting device such as a lifting oil cylinder or a gear rack, etc., and the lifting mechanism 322 is arranged on the brackets 315 at two sides of the conical hopper 311. The jaw cylinder 323 is mounted on a slider of the lifting mechanism 322, and the lifting mechanism 322 is provided in an upward and downward movement manner so as to avoid the conveying rail 4. In the initial state, the clamping jaw oil cylinder 323 drives the brush head 321 to open, the piston rod of the lifting mechanism 322 is retracted, after slurry in the conical hopper 311 falls onto the dried beancurd stick semi-finished product of the drying rod 2 through the leakage hole 312, the leakage gate 313 is closed, the clamping jaw oil cylinder 323 drives the brush head 321 to fold, the sliding block of the lifting mechanism 322 moves downwards, and the brush head 321 brushes the slurry falling onto the dried beancurd stick semi-finished product downwards, so that the slurry can be uniformly adhered onto the dried beancurd stick. A receiving hopper 35 is arranged below the automatic pulp brushing machine 3 and used for receiving the dropped pulp.
The spray part 31 is provided with a rapid air drying area 33 in front (along the conveying direction), a plurality of flat mouth air openings 331 are arranged above the conveying track 4, an external fan is connected through an air supply pipeline 332, surface air drying is carried out on the dried beancurd sticks subjected to sizing, slurry adhesion is ensured, and the slurry cannot fall off after later drying. The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the present invention.
Claims (7)
1. A production process of a dried beancurd stick without adding is characterized by comprising the following steps: comprises the steps of cleaning, soaking, pulping, boiling, peeling, pulping, sizing and drying; the peeling step is to send the boiled soybean milk into a peeling pool to peel and prepare a dried beancurd stick semi-finished product, the temperature of the peeling pool is controlled between 70 ℃ and 80 ℃, after the slurry in the peeling pool cannot peel, the slurry in the peeling pool is boiled and concentrated until the concentration of the slurry is 30% -40%, the concentrated slurry is brushed onto the dried beancurd stick semi-finished product lifted in the peeling step, and then the dried beancurd stick semi-finished product is sent into a baking room to be dried, so that the dried beancurd stick without adding is prepared, and the sulfur-free step constant temperature drying is mainly carried out by adopting automatic air energy-heat pump energy-saving drying equipment, wherein the steps are as follows: first step-a large amount of dehumidification: dried beancurd sticks are put into a baking room to be dried for 4 hours at 65 ℃; and a second step, constant temperature and humidity drying: the temperature in the drying room is adjusted to 60 ℃, the relative humidity is controlled below 50%, and the drying time is 6 hours; third step-humidity control: the temperature in the drying room is reduced again, the temperature is controlled at 58 ℃, the moisture is kept to be discharged, the drying time is controlled at 6-8 hours, the humidity of the drying room is reduced to below 15%, and the humidity of the dried beancurd sticks is controlled at 10-13%;
the sizing process is carried out by an automatic pulp brushing machine and comprises a spraying part, a pulp brushing part and a conveying track, wherein the spraying part and the pulp brushing part are arranged above the conveying track, and a bean skin airing rod is hung on the conveying track; the spraying part is provided with an incoming pipe which is in butt joint with an external skinning pond, the incoming pipe is a double-layer half pipe and is provided with an inner pipe and an outer pipe, an impeller is arranged above the inner pipe, and the impeller is connected with an impeller motor; the feeding pipe is connected with the spraying part, the spraying part comprises a conical hopper, a plurality of leakage holes are formed in the bottom of the conical hopper, leakage gates are arranged on the leakage holes, and the leakage gates are controlled to open and close by gate cylinders arranged at two ends; the conical hopper is fixed on the ground through a bracket;
the lower part of the spraying part is provided with a slurry brushing part, the slurry brushing part comprises a movable brush head and a lifting mechanism, the brush head consists of two rows of bristles which are oppositely arranged, the brush head is arranged on a group of two clamping jaw oil cylinders, and the lifting mechanism is arranged on brackets at two sides of the conical hopper; the clamping jaw oil cylinder is arranged on the lifting mechanism.
2. The production process of the additive-free dried beancurd sticks according to claim 1, wherein the production process is characterized in that: and adding sodium carbonate into the soybean according to the proportion of 0.2-0.3% in the soaking process.
3. The production process of the additive-free dried beancurd sticks according to claim 1, wherein the production process is characterized in that: the pulping process adopts a large-scale soybean pulping system of a high-power triple pulping machine, and consists of three parts of bean sucking, pulping and controlling.
4. The production process of the additive-free dried beancurd sticks according to claim 1, wherein the production process is characterized in that: the crust pool adopts steam to cook pulp, and an automatic temperature control system is arranged to control the crust and pulp boiling temperature.
5. An automatic slurry brushing machine as claimed in claim 1, wherein: the quick air-drying area is arranged in front of the spraying part, a plurality of flat mouth air openings are arranged above the conveying track, and the flat mouth air openings are connected with an external fan through an air supply pipeline.
6. An automatic slurry brushing machine as claimed in claim 1, wherein: the impeller is sleeved with a detachable blocking plate.
7. An automatic slurry brushing machine as claimed in claim 1, wherein: and a receiving hopper is arranged below the spraying part and the slurry brushing part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010774349.6A CN111838325B (en) | 2020-08-04 | 2020-08-04 | Production process of additive-free dried beancurd sticks and automatic pulp brushing machine thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010774349.6A CN111838325B (en) | 2020-08-04 | 2020-08-04 | Production process of additive-free dried beancurd sticks and automatic pulp brushing machine thereof |
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| Publication Number | Publication Date |
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| CN111838325A CN111838325A (en) | 2020-10-30 |
| CN111838325B true CN111838325B (en) | 2023-08-01 |
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| CN202010774349.6A Active CN111838325B (en) | 2020-08-04 | 2020-08-04 | Production process of additive-free dried beancurd sticks and automatic pulp brushing machine thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112869029B (en) * | 2021-02-22 | 2023-07-07 | 广西武宣农家富食品有限公司 | Semi-automatic dried beancurd stick production line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103828940A (en) * | 2014-03-06 | 2014-06-04 | 黎宏健 | Automatic dried beancurd stick production line |
| CN108634009A (en) * | 2018-07-18 | 2018-10-12 | 豆黄金食品有限公司 | A kind of production technology of no added fresh bean curd stick |
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2020
- 2020-08-04 CN CN202010774349.6A patent/CN111838325B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103828940A (en) * | 2014-03-06 | 2014-06-04 | 黎宏健 | Automatic dried beancurd stick production line |
| CN108634009A (en) * | 2018-07-18 | 2018-10-12 | 豆黄金食品有限公司 | A kind of production technology of no added fresh bean curd stick |
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