Vermicelli production line

Abstract

The utility model relates to a vermicelli production line which comprises a starch stirring device, a vermicelli extruding device, a curing device, a water washing cooling device and a quantitative cutting device which are sequentially arranged in the material conveying direction, the curing device comprises a curing water tank arranged below the vermicelli extruding device, and a first conveying belt is arranged in the curing water tank; a cooling water tank is arranged below the end, away from the filament extruding device, of the first conveying belt, a second conveying belt is arranged in the cooling water tank, and the cooling water tank and the curing water tank are each provided with a water outlet pipe and a water return pipe; guide water pipes are respectively arranged in the curing water tank above the first conveying belt and the cooling water tank above the second conveying belt, and a water outlet hole is respectively formed in one end, facing the silk extruding device, of each guide water pipe. The flatness of semi-finished vermicelli after cooling and shaping can be improved. The utility model has the advantages of convenient use and wide market prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vermicelli production equipment field, concretely relates to a vermicelli production line. BACKGROUND

[0002] Vermicelli manufacturing process includes making starch, curing, cooling, drying and the like, and each manual operation link of the traditional vermicelli production is gradually replaced by mechanical equipment. The molding and curing mode of vermicelli is the core process of preparing vermicelli products, and is divided into three major processing technologies of hot water bath molding and leakage ladle curing, extrusion molding and coating molding according to different curing modes. The extrusion processing technology directly extrudes, cures and molds the material by using a spiral extrusion device, and then the final product is obtained after cooling and drying. Some equipment increases a hot water or steam auxiliary heat source to make the vermicelli fully cured and improve the boiling resistance of the product. The main advantage of this technology is that it directly cures the starch and other powder lumps, reducing the steaming or cooking operation link. Therefore, the water consumption of such equipment is small, the land occupation is small, and the production investment is relatively small. At present, various vermicelli products on the market are mainly processed by this method.

[0003] Among them, the extrusion processing technology is in the curing and molding stage after the extrusion of vermicelli. The extruded material is put into water at a preset temperature, and the water temperature is used to realize the curing of vermicelli. The cured vermicelli is then sent to the downstream cooling equipment by a conveyor belt to complete the shaping. The shaped vermicelli is then sent to the cutting device along a preset direction by a conveyor belt to complete the cutting of a preset length, and then undergoes drying and other subsequent processes. The cooling and shaping method preferably uses water at a preset temperature to cool and shape the cured vermicelli. Because water has a large specific heat capacity, the cured vermicelli can be cooled and shaped in an appropriate temperature range, and the surface of the cured vermicelli can be conveniently cleaned of dust that may accidentally adhere thereto during the cooling and shaping process. In the industrial production of vermicelli, the conveyor belt is used to convey the cured vermicelli and the cooled and shaped vermicelli. In particular, the cooled vermicelli bends on the conveyor belt, which directly affects the actual length of the cut vermicelli. Different lengths of cut vermicelli can cause difficulties in subsequent packaging, thereby affecting production. Therefore, the existing technology has room for improvement, which can actually improve the flatness of the cooled and shaped semi-finished vermicelli conveyed to the cutting device by the conveyor belt, thereby meeting the length requirements of the cut vermicelli. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a vermicelli production line capable of improving the flatness of the cooled and shaped semi-finished vermicelli, for overcoming the defects in the prior art.

[0005] The utility model discloses a technical scheme for a vermicelli production line, which comprises, in order along the material conveying direction, a starch stirring device, an extruding device, a curing device, a water washing and cooling device, and a quantitative cutting device.

[0006] Preferably, the first conveying belt and the second conveying belt each comprise a driving shaft, a driven shaft, and two transmission assemblies arranged on the driving shaft and the driven shaft. Each transmission assembly comprises a driving sprocket arranged on the driving shaft, a driven sprocket arranged on the driven shaft, a transmission chain in the shape of a ring arranged on the driving sprocket and the driven sprocket, a first guide sprocket arranged above the transmission chain, and a second guide sprocket arranged on the inner side of the transmission chain. The height of the transmission chain between the first guide sprocket and the driven sprocket and the height of the transmission chain of the second guide sprocket gradually increase as the transmission chain gradually approaches the driven sprocket. The number of the first guide sprocket and the second guide sprocket is two. A first guide shaft is arranged on the two first guide sprockets, and a second guide shaft is arranged on the two second guide sprockets. The number of the transmission chains of the first conveying belt and the number of the transmission chains of the second conveying belt are both two. A meshed conveying belt is arranged on the two transmission chains of the first conveying belt and the two transmission chains of the second conveying belt. The material of the conveying belt is polyurethane material.

[0007] Preferably, a first circulating water pipe is arranged between the water outlet pipe of the curing water tank and the water return pipe of the curing water tank, and a second circulating water pipe is arranged between the water outlet pipe of the cooling water tank and the water return pipe of the cooling water tank. The first circulating water pipe is sequentially provided, along the direction from the inlet end of the first circulating water pipe to the outlet end of the first circulating water pipe, with a first filter, a first circulating water pump, an electric heater, and a first regulating valve. The second circulating water pipe is sequentially provided, along the direction from the inlet end of the second circulating water pipe to the outlet end of the second circulating water pipe, with a second filter, a heat source channel of a first air-cooled heat exchanger, a second circulating water pump, an electric refrigerator, and a second regulating valve.

[0008] Preferably, the number of guide water pipes installed in the aging water tank and the number of guide water pipes installed in the cooling water tank are several, the installation height of the several guide water pipes installed in the aging water tank and the installation height of the several guide water pipes installed in the cooling water tank gradually decrease from the direction away from the filament extruding device to the direction close to the filament extruding device, the first water supply branch pipes are respectively arranged on the several guide water pipes installed in the aging water tank, the second water supply branch pipes are respectively arranged on the several guide water pipes installed in the cooling water tank, the third water supply branch pipes are arranged on the several first water supply branch pipes, the fourth water supply branch pipes are arranged on the several second water supply branch pipes, and the third adjusting valves are arranged on the several first water supply branch pipes and the several second water supply branch pipes.

[0009] Preferably, the first circulating water pipe between the electric heater and the first adjusting valve and the third water supply branch pipe are connected in communication through the fifth water supply branch pipe, the second circulating water pipe between the electric refrigerator and the second adjusting valve and the fourth water supply branch pipe are connected in communication through the sixth water supply branch pipe, and the fourth adjusting valves are respectively arranged on the fifth water supply branch pipe and the sixth water supply branch pipe.

[0010] Preferably, each return water pipe comprises a first connecting pipe section, a variable diameter pipe section arranged on one end of the first connecting pipe section, and a second connecting pipe section arranged on the end of the variable diameter pipe section away from the first connecting pipe section, the diameter of the outer circle of the inner cavity of the variable diameter pipe section gradually increases along the direction from the first connecting pipe section to the second connecting pipe section, the second connecting pipe section is internally provided with a rectifier hole plate, and the number of return water pipes is two, wherein the second connecting pipe section of one return water pipe is installed on the aging water tank, and the second connecting pipe section of the other return water pipe is installed on the cooling water tank.

[0011] Preferably, the outlet end of the filament extruding device and the outer side of the aging water tank are provided with a steam guide box, the top of the steam guide box is provided with several gas collecting hoods, the top end of each gas collecting hood is respectively provided with a gas extraction branch pipe, each gas extraction branch pipe is respectively provided with a fifth adjusting valve, the several gas extraction branch pipes are provided with a gas extraction main pipe, the gas extraction main pipe is sequentially provided with an induced draft fan, a heat source channel of a second air-cooled heat exchanger, and a gas-liquid separation tank along the direction from close to the gas extraction branch pipe to away from the gas extraction branch pipe, the top end of the gas-liquid separation tank is provided with a tail gas discharge pipe, the bottom end of the gas-liquid separation tank is provided with a liquefied water discharge pipe, the gas-liquid separation tank is internally provided with a wire mesh coalescer, the outlet end of the gas extraction main pipe is connected in communication with the gas-liquid separation tank below the wire mesh coalescer, and the liquefied water discharge pipe is provided with a drain valve.

[0012] The utility model has the advantages of the following: firstly, the first shaping of the vermicelli in the maturing water tank is realized by the water flow outputted by the guide water pipe in the maturing water tank and the friction force between the vermicelli and the first conveyor belt, and the second shaping of the vermicelli in the cooling water tank is realized by the water flow outputted by the guide water pipe in the cooling water tank and the friction force between the vermicelli and the second conveyor belt, so that the flatness of the semi-finished product vermicelli after cooling and shaping is improved.

[0013] Secondly, the liquid level sensor is arranged on the gas-liquid separation tank below the silk screen coalescer, and the installation of the liquid level sensor facilitates the feedback of the liquid level height.

[0014] Thirdly, the second circulating water pipe is sequentially provided with a second filter, a first temperature sensor, a heat source channel of a first air-cooled heat exchanger, a second temperature sensor, a second circulating water pump, an electric refrigerator and a second regulating valve along the direction from the inlet end of the second circulating water pipe to the outlet end of the second circulating water pipe; the installation of the first temperature sensor and the second temperature sensor both facilitates the feedback of the temperature parameter.

[0015] The utility model has the advantages of simple structure, convenient operation, ingenious design, greatly improved work efficiency, good social and economic benefits, and easy popularization and use. DRAWINGS

[0016] Figure 1 The utility model discloses a structure schematic diagram.

[0017] Figure 2 The utility model discloses Figure 1 The utility model discloses a partial enlarged schematic diagram of detail A.

[0018] Figure 3 The utility model discloses Figure 1 The utility model discloses a partial enlarged schematic diagram of detail B.

[0019] Figure 4 The utility model discloses Figure 1 The utility model discloses a partial enlarged schematic diagram of detail C. PREFERRED EMBODIMENT

[0020] As Figures 1 to 4As shown, a vermicelli production line, including in the material conveying direction in turn arranged starch stirring device, extrusion device, curing device, water cooling device and quantitative cutting device, the curing device includes the outlet end below of the extrusion device is provided with curing water tank 1, curing water tank 1 is provided with the first conveyor belt, the first conveyor belt is located below the extrusion device, the first conveyor belt away from the one end of the extrusion device is located in the curing water tank 1 outside, the first conveyor belt away from the one end below of the extrusion device is provided with cooling water tank 2, cooling water tank 2 is provided with the second conveyor belt, cooling water tank 2 is close to the one end of the extrusion device and the one end of curing water tank 1 on is respectively provided with water outlet pipe 3, cooling water tank 2 is away from the one end of the extrusion device and the one end of curing water tank 1 on is respectively provided with backwater pipe 4, the first conveyor belt above curing water tank 1 and the second conveyor belt above cooling water tank 2 are respectively provided with guide water pipe 5, each guide water pipe 5 is close to the one end of the extrusion device is respectively provided with water outlet hole 6.

[0021] The first conveyor belt and the second conveyor belt both include driving shaft 7, driven shaft 8 and two transmission assemblies provided on the driving shaft 7 and the driven shaft 8, each transmission assembly includes driving sprocket 9 provided on the driving shaft 7, driven sprocket 10 provided on the driven shaft 8, annular transmission chain 11 provided on the driving sprocket 9 and the driven sprocket 10, first guide sprocket 12 provided above the transmission chain 11 and second guide sprocket 13 provided on the inner side of the transmission chain 11; the height of the transmission chain 11 between the first guide sprocket 12 and the driven sprocket 10 and the height of the transmission chain 11 of the second guide sprocket 13 both gradually increase as the transmission chain 11 gradually approaches the driven sprocket 10, the number of the first guide sprocket 12 and the second guide sprocket 13 both adopts two, the first guide shaft 14 is provided on the two first guide sprockets 12, the second guide shaft 15 is provided on the two second guide sprockets 13, the number of the transmission chain 11 of the first conveyor belt and the number of the transmission chain 11 of the second conveyor belt both adopts two, the meshed conveyor belt 16 is respectively provided on the two transmission chains 11 of the first conveyor belt and the two transmission chains 11 of the second conveyor belt, the material of the meshed conveyor belt 16 adopts polyurethane material.

[0022] The driving sprocket 9 of the first conveying belt is located in the maturation water tank 1, the driven sprocket 10 of the first conveying belt is located outside the maturation water tank 1, the driven sprocket 10 of the first conveying belt is located above the conveying belt 16 of the second conveying belt, the driving sprocket 9 of the second conveying belt is located in the cooling water tank 2, the driven sprocket 10 of the second conveying belt is located outside the maturation water tank 1. The conveying belt 16 between the driving sprocket 9 of the first conveying belt and the first guide sprocket 12 of the first conveying belt and the conveying belt 16 between the driving sprocket 9 of the second conveying belt and the first guide sprocket 12 of the second conveying belt are both in horizontal shape; the height of the conveying belt 16 between the first guide sprocket 12 of the first conveying belt and the driven sprocket 10 of the first conveying belt and the height of the conveying belt 16 between the first guide sprocket 12 of the second conveying belt and the driven sprocket 10 of the second conveying belt gradually increase along the direction from the extruding device to the extruding device. The outlet pipe 3 of the maturation water tank 1 and the return pipe 4 of the maturation water tank 1 are provided with the first circulating water pipe 17, the outlet pipe 3 of the cooling water tank 2 and the return pipe 4 of the cooling water tank 2 are provided with the second circulating water pipe 18, the first circulating water pipe 17 is sequentially provided with the first filter 19, the first circulating water pump 20, the electric heater 21 and the first adjusting valve 22 along the direction from the inlet end of the first circulating water pipe 17 to the outlet end of the first circulating water pipe 17, the second circulating water pipe 18 is sequentially provided with the second filter 23, the first temperature sensor 50, the heat source channel of the first air-cooled heat exchanger 24, the second temperature sensor 51, the second circulating water pump 25, the electric refrigerator 26 and the second adjusting valve 27 along the direction from the inlet end of the second circulating water pipe 18 to the outlet end of the second circulating water pipe 18. The first temperature sensor 50 is installed to facilitate the feedback of the water temperature discharged from the outlet pipe 3 of the cooling water tank 2, the second temperature sensor 51 is installed to facilitate the feedback of the water temperature discharged from the first air-cooled heat exchanger 24, the temperature data can be given to facilitate the staff to adjust the output power of the second circulating water pump 25 and to prompt the staff whether to open the electric refrigerator 26 to further cool the water discharged from the first air-cooled heat exchanger 24.

[0023] Further, the number of the guide water pipes 5 installed in the aging tank 1 and the number of the guide water pipes 5 installed in the cooling tank 2 are both several, the installation heights of the several guide water pipes 5 installed in the aging tank 1 and the installation heights of the several guide water pipes 5 installed in the cooling tank 2 gradually decrease along the direction from the extruding device to the extruding device, the first water supply branch pipes 28 are respectively arranged on the several guide water pipes 5 installed in the aging tank 1, the second water supply branch pipes 29 are respectively arranged on the several guide water pipes 5 installed in the cooling tank 2, the third water supply branch pipes 30 are arranged on the several first water supply branch pipes 28, the fourth water supply branch pipes 31 are arranged on the several second water supply branch pipes 29, and the third adjusting valves 32 are arranged on the several first water supply branch pipes 28 and the several second water supply branch pipes 29.

[0024] The first circulating water pipe 17 between the electric heater 21 and the first adjusting valve 22 and the third water supply branch pipe 30 are communicated through the fifth water supply branch pipe 33, the second circulating water pipe 18 between the electric refrigerator 26 and the second adjusting valve 27 and the fourth water supply branch pipe 31 are communicated through the sixth water supply branch pipe 34, and the fourth adjusting valves 35 are respectively arranged on the fifth water supply branch pipe 33 and the sixth water supply branch pipe 34. Each of the return water pipes 4 comprises a first connecting pipe section, a variable-diameter pipe section arranged on one end of the first connecting pipe section, and a second connecting pipe section arranged on the end of the variable-diameter pipe section away from the first connecting pipe section, the diameter of the outer circle of the inner cavity of the variable-diameter pipe section gradually increases along the direction from the first connecting pipe section to the second connecting pipe section, the second connecting pipe section is provided with the rectifier hole plate 36, and the number of the return water pipes 4 is two, wherein the second connecting pipe section of one of the return water pipes 4 is arranged on the aging tank 1, and the second connecting pipe section of the other return water pipe 4 is arranged on the cooling tank 2.

[0025] The outlet end of the extruding device and the outside of the aging tank 1 are provided with the steam guide box 37, the top of the steam guide box 37 is provided with several gas collecting hoods 38, the top end of each of the gas collecting hoods 38 is respectively provided with the gas extraction branch pipe 39, the fifth adjusting valves 40 are respectively arranged on each of the gas extraction branch pipes 39, the gas extraction main pipe 41 is arranged on the several gas extraction branch pipes 39, the gas extraction main pipe 41 is sequentially provided with the induced draft fan 42, the heat source channel of the second air-cooled heat exchanger 43, and the gas-liquid separation tank 44 along the direction from the gas extraction branch pipe 39 to the gas extraction branch pipe 39, the tail gas discharge pipe 45 is arranged on the top end of the gas-liquid separation tank 44, the liquefied water discharge pipe 46 is arranged on the bottom end of the gas-liquid separation tank 44, the wire mesh coalescer 47 is arranged in the gas-liquid separation tank 44, the liquid level sensor 49 is arranged on the gas-liquid separation tank 44 below the wire mesh coalescer 47, the outlet end of the gas extraction main pipe 41 and the gas-liquid separation tank 44 below the wire mesh coalescer 47 are communicated, and the drain valve 48 is arranged on the liquefied water discharge pipe 46.

[0026] The instructions for using this product are as follows: Figures 1 to 4 As shown, the extrusion device extrudes uncooked vermicelli downwards. The free end of the vermicelli falls freely into the cooking tank 1 and finally onto the conveyor belt 16 of the first conveyor belt. The conveyor belt 16 carries the free end of the vermicelli forward towards the driven sprocket 10 of the first conveyor belt. During this process, the uncooked vermicelli and the water in the cooking tank 1 continuously exchange heat and complete the cooking process. The uncooked vermicelli is carried forward by the conveyor belt 16 of the first conveyor belt. When the uncooked vermicelli is discharged from the water layer in the cooking tank 1... After the vermicelli is produced, it is formed into mature vermicelli. After the free end of the mature vermicelli is conveyed out from the first conveyor belt, the free end of the mature vermicelli continues to fall into the cooling water tank 2 and onto the conveyor belt 16 of the second conveyor belt. The conveyor belt 16 of the second conveyor belt carries the free end of the mature vermicelli and continues to move forward in the direction of the driven sprocket 10 of the second conveyor belt. After being loaded by the conveyor belt 16 of the second conveyor belt in the cooling water tank 2, the mature vermicelli is discharged from the water layer of the cooling water tank 2 to form cooled vermicelli.

[0027] During this period, when the cooked vermicelli is loaded by the conveyor belt 16 between the first guide sprocket 12 and the driven sprocket 10 of the first conveyor belt, the friction between the cooked vermicelli and the conveyor belt 16 of the first conveyor belt, combined with the water flow output from the guide water pipe 5 in the cooking tank 1 through the corresponding water outlet 6, continuously shapes the uncooked vermicelli in the cooking tank 1, thereby improving the flatness of the vermicelli conveyed to the conveyor belt 16 of the first conveyor belt above the liquid layer in the cooking tank 1. Similarly, when the cooled vermicelli is loaded by the conveyor belt 16 between the first guide sprocket 12 and the driven sprocket 10 of the second conveyor belt, the friction between the cooled vermicelli and the conveyor belt 16 of the second conveyor belt, combined with the water flow output from the guide water pipe 5 in the cooling water tank 2 through the corresponding water outlet 6, continuously shapes the vermicelli in the liquid layer of the cooling water tank 2, thereby providing flatness of the vermicelli on the conveyor belt 16 of the second conveyor belt above the liquid layer of the cooling water tank 2.

[0028] During the process of the above-mentioned vermicelli maturation, the water in the maturation water tank 1 is discharged outward through the water outlet pipe 3 of the maturation water tank 1, and then is sent to the first circulating water pipe 17 after being rectified by the corresponding rectifying orifice plate 36. The water is divided into two parts after being filtered by the first filter 19 and heated by the electric heater 21. The first part is sent to the several guide water pipes 5 in the maturation water tank 1 through the fifth water branch pipe 33, and the second part is sent back to the maturation water tank 1 through the water return pipe 4 of the maturation water tank 1 to form the first circulation. The steam generated by the liquid evaporation in the maturation water tank 1 continuously rises in the inner cavity of the steam guide box 37 under the driving of the air blower 42, is collected by the several gas collecting hoods 38, and is sent to the air exhaust main pipe 41. The steam is liquefied to form a gas-liquid mixture after being heat-exchanged with the air near the heat source channel of the second air-cooled heat exchanger 43 and the air of the second air-cooled heat exchanger 43. Then, the gas-liquid mixture is sent into the gas-liquid separation tank 44 to form gas-liquid separation under the action of the wire mesh coalescer 47. The liquid phase part is temporarily stored in the gas-liquid separation tank 44 below the wire mesh coalescer 47, and the gas phase part is discharged to the tail gas treatment system through the tail gas discharge pipe 45 for tail gas treatment.

[0029] During the process of the above-mentioned vermicelli cooling, the water in the cooling water tank 2 is discharged outward through the water outlet pipe 3 of the cooling water tank 2, and then is sent to the second circulating water pipe 18 after being rectified by the corresponding rectifying orifice plate 36. The water is filtered by the second filter 23, and then is subjected to first feedback temperature by the first temperature sensor 50. Then, the water is heat-exchanged with the air near the heat source channel of the first air-cooled heat exchanger 24 and the air of the first air-cooled heat exchanger 24, and then is subjected to second feedback temperature by the second temperature sensor 51. The output power of the second circulating water pump 25 and the electric refrigerator 26 is adjusted according to the temperature parameter fed back by the second temperature sensor 51. After the water flows through the electric refrigerator 26, the water is divided into two parts. The first part is sent to the several guide water pipes 5 in the cooling water tank 2 through the sixth water branch pipe 34, and the second part continuously moves along the second circulating water pipe 18 to form the second circulation by being sent back to the cooling water tank 2 through the water return pipe 4 of the cooling water tank 2.

[0030] Through the embodiment, the water flow output by the guide water pipes 5 in the maturation water tank 1 is combined with the friction between the vermicelli and the first conveying belt to perform the first shaping on the vermicelli in the maturation water tank 1, and the water flow output by the guide water pipes 5 in the cooling water tank 2 is combined with the friction between the vermicelli and the second conveying belt to perform the second shaping on the vermicelli in the cooling water tank 2, so that the flatness of the semi-finished vermicelli after the cooling and shaping is improved.

[0031] The above-described embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application, so that equivalent changes or modifications made in the structure, features and principles described in the patent range of the present application should be included in the patent range of the present application.

Claims

1. A vermicelli production line comprising, in the order of material conveying direction, a starch mixing device, an extruding device, a maturing device, a water washing and cooling device, and a quantitative cutting device, characterized in that: The ripening device comprises a ripening water tank (1) arranged below the outlet end of the wire extruding device, a first conveying belt arranged in the ripening water tank (1), a cooling water tank (2) arranged below the end of the first conveying belt away from the wire extruding device, a second conveying belt arranged in the cooling water tank (2), a water outlet pipe (3) arranged on the end of the cooling water tank (2) and the end of the ripening water tank (1) close to the wire extruding device, a water return pipe (4) arranged on the end of the cooling water tank (2) and the end of the ripening water tank (1) away from the wire extruding device, a guide water pipe (5) arranged above the first conveying belt in the ripening water tank (1) and above the second conveying belt in the cooling water tank (2), and a water outlet hole (6) arranged in each guide water pipe (5) towards the wire extruding device.

2. The vermicelli production line as claimed in claim 1, wherein: The first conveying belt and the second conveying belt each comprise a driving shaft (7), a driven shaft (8), two transmission assemblies arranged on the driving shaft (7) and the driven shaft (8), a driving sprocket (9) arranged on the driving shaft (7), a driven sprocket (10) arranged on the driven shaft (8), a ring-shaped transmission chain (11) arranged on the driving sprocket (9) and the driven sprocket (10), a first guide sprocket (12) arranged above the transmission chain (11), and a second guide sprocket (13) arranged on the inner side of the transmission chain (11), the height of the transmission chain (11) between the first guide sprocket (12) and the driven sprocket (10) and the height of the transmission chain (11) of the second guide sprocket (13) gradually increase as the transmission chain (11) gradually approaches the driven sprocket (10), the number of the first guide sprocket (12) and the second guide sprocket (13) is two, a first guide shaft (14) is arranged on the two first guide sprockets (12), a second guide shaft (15) is arranged on the two second guide sprockets (13), the number of the transmission chain (11) of the first conveying belt and the number of the transmission chain (11) of the second conveying belt is two, a mesh-shaped conveying belt (16) is arranged on the two transmission chains (11) of the first conveying belt and the two transmission chains (11) of the second conveying belt, and the material of the conveying belt (16) is polyurethane.

3. The vermicelli production line as claimed in claim 1, wherein: The first circulating water pipe (17) is arranged between the water outlet pipe (3) of the aging water tank (1) and the water return pipe (4) of the aging water tank (1), and the second circulating water pipe (18) is arranged between the water outlet pipe (3) of the cooling water tank (2) and the water return pipe (4) of the cooling water tank (2), the first circulating water pipe (17) is sequentially provided with a first filter (19), a first circulating water pump (20), an electric heater (21) and a first regulating valve (22) along the direction from the inlet end of the first circulating water pipe (17) to the outlet end of the first circulating water pipe (17), and the second circulating water pipe (18) is sequentially provided with a second filter (23), a heat source channel of a first air-cooled heat exchanger (24), a second circulating water pump (25), an electric refrigerator (26) and a second regulating valve (27) along the direction from the inlet end of the second circulating water pipe (18) to the outlet end of the second circulating water pipe (18).

4. The vermicelli production line as claimed in claim 3, wherein: The number of the guide water pipes (5) arranged in the aging water tank (1) and the number of the guide water pipes (5) arranged in the cooling water tank (2) are both several, the installation heights of the several guide water pipes (5) arranged in the aging water tank (1) and the installation heights of the several guide water pipes (5) arranged in the cooling water tank (2) gradually decrease along the direction from the extruding device to the extruding device, the first water supply branch pipes (28) are arranged on the several guide water pipes (5) arranged in the aging water tank (1) respectively, the second water supply branch pipes (29) are arranged on the several guide water pipes (5) arranged in the cooling water tank (2) respectively, the third water supply branch pipes (30) are arranged on the several first water supply branch pipes (28), the fourth water supply branch pipes (31) are arranged on the several second water supply branch pipes (29), and the third regulating valves (32) are arranged on the several first water supply branch pipes (28) and the several second water supply branch pipes (29) in a distributed manner.

5. The vermicelli production line as claimed in claim 4, wherein: The first circulating water pipe (17) and the third water supply branch pipe (30) between the electric heater (21) and the first regulating valve (22) are connected and communicated through the fifth water supply branch pipe (33), the second circulating water pipe (18) and the fourth water supply branch pipe (31) between the electric refrigerator (26) and the second regulating valve (27) are connected and communicated through the sixth water supply branch pipe (34), and the fourth regulating valves (35) are arranged on the fifth water supply branch pipe (33) and the sixth water supply branch pipe (34) respectively.

6. The vermicelli production line as claimed in claim 1, wherein: Each water return pipe (4) comprises a first connecting pipe section, a reducing pipe section arranged on one end of the first connecting pipe section and a second connecting pipe section arranged on the end of the reducing pipe section away from the first connecting pipe section, the diameter of the circumscribed circle of the inner cavity of the reducing pipe section gradually increases along the direction from the first connecting pipe section to the second connecting pipe section, the second connecting pipe section is internally provided with a flow straightening hole plate (36), and the number of the water return pipes (4) is two, wherein the second connecting pipe section of one water return pipe (4) is arranged on the aging water tank (1), and the second connecting pipe section of the other water return pipe (4) is arranged on the cooling water tank (2).

7. The vermicelli production line as claimed in claim 1, wherein: The outlet end of the extruding device and the outer side of the aging water tank (1) are provided with a steam guide box (37), the top of the steam guide box (37) is provided with a plurality of gas collecting hoods (38), the top end of each gas collecting hood (38) is respectively provided with an air extraction branch pipe (39), each air extraction branch pipe (39) is respectively provided with a fifth adjusting valve (40), a plurality of air extraction branch pipes (39) are provided with an air extraction main pipe (41), the air extraction main pipe (41) is sequentially provided with an air draught fan (42), a heat source channel of a second air-cooled heat exchanger (43) and a gas-liquid separation tank (44) along the direction from being close to the air extraction branch pipe (39) to being far away from the air extraction branch pipe (39), the top end of the gas-liquid separation tank (44) is provided with a tail gas discharge pipe (45), the bottom end of the gas-liquid separation tank (44) is provided with a liquefied water discharge pipe (46), the gas-liquid separation tank (44) is provided with a wire mesh coalescer (47), the outlet end of the air extraction main pipe (41) and the gas-liquid separation tank (44) below the wire mesh coalescer (47) are communicated, and the liquefied water discharge pipe (46) is provided with a water discharge valve (48).

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