阅读说明：本技术 一种玉米棒专用速冻机 (Special instant freezer of corn-on-cob ) 是由 徐国峰 田鑫 郑尧忠 周斌斌 阮炯君 陈河风 于 2020-06-05 设计创作，主要内容包括：本发明公开了一种玉米棒专用速冻机,包括传送带和沿传送带长度方向设置的制冷组件,所述传送带与制冷组件之间设置有旋转式玉米棒排水机构。利用制冷组件对玉米棒进行直接速冻,配合旋转式玉米排水机构实现玉米棒内多余水分的分离,避免速冻过程中多余水分对玉米棒的影响,既能防止玉米粒之间的粘连,也避免了残留水较多处出现结冰膨胀,在保存玉米棒完整性的同时实现速冻,而风力可对玉米棒的芯部进行深层降温,避免玉米棒在速冻过程各种出现内外温差过大且因内部降温程度不足造成腐坏的问题,保证速冻效果的整体性,进而保证了玉米棒的品质。(The invention discloses a special instant freezer for corn cobs, which comprises a conveyor belt and a refrigeration assembly arranged along the length direction of the conveyor belt, wherein a rotary corn cob drainage mechanism is arranged between the conveyor belt and the refrigeration assembly. Utilize refrigeration assembly to carry out direct quick-freeze to the corn-on-cob, the separation of unnecessary moisture in the cooperation rotation type maize drainage mechanism realization corn-on-cob, avoid quick-freeze in-process unnecessary moisture to the influence of corn-on-cob, can prevent the adhesion between the kernel of corn, the more department of residual water has also been avoided appearing freezing the inflation, realize the quick-freeze when keeping corn-on-cob integrality, and wind-force can carry out deep cooling to the core of corn-on-cob, avoid the corn-on-cob in the various inside and outside difference in temperature that appear of quick-freeze process too big and because of the not enough problem that causes the corruption of inside cooling degree, guarantee the wholeness of quick-freeze effect.)

1. The utility model provides a special frozen machine of corn-on-cob which characterized in that, includes conveyer belt (1) and refrigeration subassembly (2) that set up along conveyer belt (1) length direction, be provided with rotation type corn-on-cob drainage mechanism (3) between conveyer belt (1) and refrigeration subassembly (2).

2. The special instant freezer for the corn cobs, as claimed in claim 1, is characterized in that said rotary corn cob draining mechanism (3) comprises a first air chamber (31) and a second air chamber (32), said first air chamber (31) and said second air chamber (32) are respectively arranged on the upper and lower sides of the conveyor belt (1), said conveyor belt (1) is provided with a unit type instant freezing chamber (4), said unit type instant freezing chamber (4) is provided with a first air inlet (311) communicated with the first air chamber (31) and a second air inlet (321) communicated with the second air chamber (32), said first air inlet (311) and said second air inlet (321) are arranged in a staggered manner.

3. The special instant freezer for the corn cobs as claimed in claim 2, wherein the refrigeration component (2) is a temperature-variable refrigeration mechanism, and comprises a plurality of evaporators (21) which are arranged along the length direction of the conveyor belt (1) and the temperatures of the evaporators are reduced in sequence, an axial flow fan (22) is arranged on each evaporator (21), and the axial flow fan (22) is communicated with the first air chamber (31) and the second air chamber (32).

4. The special quick freezing machine for the corn cobs as claimed in claim 2, wherein the unit type quick freezing bin (4) is a cuboid, the first air inlet (311) is formed in one side, close to the tail end of the conveyor belt (1), of the top of the unit type quick freezing bin (4), and the second air inlet (321) is formed in one side, close to the starting end of the conveyor belt (1), of the bottom of the unit type quick freezing bin (4).

5. The quick freezing machine special for the corn cobs is characterized in that the first air chamber (31) and the second air chamber (32) are symmetrically arranged on the upper side and the lower side of the conveyor belt (1), the evaporator (21) comprises a drainage section (201), a quick cooling section (202) and a drainage section (203) which are arranged along the conveyor belt (1), and the temperatures of the evaporator (21) corresponding to the drainage section (201), the quick cooling section (202) and the drainage section (203) are sequentially reduced.

6. The quick freezing machine special for the corn cobs as claimed in any one of claims 1 to 5, wherein exhaust chambers (5) are arranged at two sides of the conveyor belt (1), and the exhaust chambers (5) are communicated with the front side and the rear side of the unit type quick freezing bin (4).

7. The quick freezing machine special for the corn cobs as claimed in claim 2, wherein the unit type quick freezing bin (4) is fixedly connected with the conveyor belt (1), the top of the unit type quick freezing bin (4) is of a cover-lifting structure, and the tail part of the transmission chain is provided with the storage bin (6).

8. The quick freezing machine special for the corn cobs as claimed in claim 2, wherein a water absorbing layer (7) is arranged on the inner wall of the unit type quick freezing bin (4).

9. The instant freezer as claimed in claim 8, wherein said water absorbing layer (7) is an elastic member.

Technical Field

The invention relates to the technical field of food processing, in particular to a special instant freezer for corn cobs.

Background

Corn is an economic crop integrating grain, fruit, vegetable and feed. The corn ears are directly supplied to the market by 'leaving the bracts on the market', and need to be rapidly processed to keep the high sugar content and the fresh and tender degree of the corn. Common processing methods include harvesting in good time → peeling, removing filaments → selecting, trimming, grading → cleaning and threshing → blanching → cooling → selecting → quick freezing → screening → packaging → refrigeration. The quick freezing is the key and difficult point of the processing process, determines the preservation degree of the corn flavor, and is a key ring for processing the corn with good quality.

At present, corn processing generally needs threshing, and the threshing process is easy to cause loss and damage of the corn and can also cause loss of nutrients in subsequent processing. For example, a method for processing quick-frozen corn kernels disclosed in the Chinese patent document, which is disclosed in the publication No. CN108812867A, comprises the steps of pretreating raw materials, threshing, blanching, immersing the blanched corn kernels in a prepared color protection solution for 2-3 min, performing color protection treatment, taking the corn kernels out of the color protection solution, washing off residual color protection agent on the surface by using flowing clear water, cooling to below 15 ℃, quickly placing the cooled corn kernels into a refrigerator for quick freezing, keeping the temperature below 30 ℃, performing quick freezing for 15-20 min, ensuring that the central temperature of the quick-frozen product is below-18 ℃, inspecting the quick-frozen corn kernels, performing vacuum packaging to obtain a finished product, and storing the finished product at below-18 ℃. The corn kernels prepared by the method have the advantages of beautiful and glossy appearance, unique soft, fragrant, sticky and sweet mouthfeel of sweet corn, and accord with the sanitary standard, and are qualified corn kernel products. However, the corn kernels are cleaned by the color protection liquid, so that a great amount of nutrients in the corn kernels are lost, and the taste of the corn kernels is reduced in the long-term storage process.

Disclosure of Invention

Aiming at the problem that nutrient loss of corn is easily caused by a preservation method of quick-frozen corn kernels in the prior art, the invention provides the special quick-freezing machine for the corn cobs, wherein the corn cobs are directly and quickly frozen by utilizing a refrigeration assembly, and residual water in the corn cobs is discharged by matching with a rotary corn drainage mechanism, so that the corn kernels on the corn cobs are prevented from being adhered to each other in the quick-freezing process, and meanwhile, the nutrient loss in the corn is avoided.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a special frozen machine of corn-on-cob, includes conveyer belt and the refrigeration subassembly that sets up along conveyer belt length direction, be provided with rotation type corn-on-cob drainage mechanism between conveyer belt and the refrigeration subassembly. Conveyer belt automatic operation carries the corn-on-cob to get into refrigeration component's work area, corn-on-cob drainage mechanism rotates the corn-on-cob through wind-force for the corn-on-cob is processed earlier stage and is preserved water between the kernel of corn and is thrown away at rotatory in-process, realizes the separation of unnecessary moisture in the corn-on-cob, avoids quick-freeze in-process unnecessary moisture to the influence of corn-on-cob, can prevent the adhesion between the kernel of corn, has also avoided the more department of residual water to appear freezing the inflation, realizes the quick-freeze when preserving the corn-on-cob integrality, has guaranteed the outward appearance effect of corn-on-cob simultaneously.

Preferably, the rotary corn cob drainage mechanism comprises a first air chamber and a second air chamber, the first air chamber and the second air chamber are respectively arranged on the upper side and the lower side of the conveyor belt, a unit type quick-freezing bin is arranged on the conveyor belt, a first air inlet communicated with the first air chamber and a second air inlet communicated with the second air chamber are arranged on the unit type quick-freezing bin, and the first air inlet and the second air inlet are arranged in a staggered mode. The first air chamber is matched with the first air inlet to carry out unilateral pneumatic operation on the corn cobs arranged in the unit type quick-freezing bin, and the second air chamber is matched with the second air inlet to realize pneumatic operation on the other side of the corn cobs. The wind direction of the first air inlet is opposite to that of the second air inlet, the first air inlet and the second air inlet are respectively arranged on two sides of the corn cobs, the corn cobs are driven to rotate along the preset direction in a matching mode, and the rotating speed of the corn cobs is determined by the wind speeds of the first air chamber and the second air chamber. Simultaneously, wind-force can carry out deep cooling to the core of corn-on-cob, avoids the corn-on-cob in the various inside and outside difference in temperature that appear of quick-freeze process too big and because of the not enough problem that leads to the fact the corruption of inside cooling degree, guarantees the wholeness of quick-freeze effect, and then has guaranteed the quality of corn-on-cob.

Preferably, the refrigerating assembly is a temperature-variable refrigerating mechanism and comprises a plurality of evaporators which are arranged along the length direction of the conveyor belt and the temperatures of which are sequentially reduced, and the evaporators are provided with axial flow fans which are communicated with the first air chamber and the second air chamber. The axial flow fan is an air source in the first air chamber and the second air chamber, the axial flow fan is matched with low-temperature gas output by the evaporator to realize drainage and quick freezing of the corn cobs, the rotation speed of the corn cobs can be adjusted by changing the flow speed of the axial flow fan, and meanwhile, the air speed also determines the cooling speed of the corn cobs, namely, the faster the flow speed is, the more heat dissipated in unit time is, and the faster the corn cobs are cooled; the air speed is set to match with the evaporators with the temperatures being reduced in sequence, so that the corn cobs can pass through the maximum ice crystal generation zone of 0-5 ℃ as soon as possible, the generation of large ice crystals in the corn kernels is reduced as far as possible, and the mouthfeel of the quick-frozen corn after thawing is improved.

Preferably, the unit type quick-freezing bin is a cuboid, the first air inlet is formed in one side, close to the tail end of the conveyor belt, of the top of the unit type quick-freezing bin, and the second air inlet is formed in one side, close to the starting end of the conveyor belt, of the bottom of the unit type quick-freezing bin. First air intake and second air intake dislocation set and drive the corn-on-cob clockwise rotation, can ensure that unnecessary moisture in the corn-on-cob is discharged.

Preferably, the first air chamber and the second air chamber are symmetrically arranged on the upper side and the lower side of the conveying belt, the evaporator comprises a drainage section, a quick cooling section and a deep cooling section which are arranged along the conveying belt, and the temperatures of the evaporators corresponding to the drainage section, the quick cooling section and the deep cooling section are sequentially reduced. The drainage section ensures the high rotating speed of the corn cobs through high wind speed, so that most of redundant moisture is smoothly drained during the quick rotation of the corn cobs; the fast cooling section maintains high wind speed, and meanwhile, the temperature of the evaporator of the fast cooling section is lower than that of the evaporator of the drainage section, so that the corn cob is ensured to pass through a maximum ice crystal generation zone at 0-5 ℃ as soon as possible, and the generation of large ice crystals in the corn kernels is reduced as far as possible; and the high wind speed of the deep cooling section can assist the evaporator with lower temperature to accelerate the heat loss of the corn cobs, so that the whole corn cobs can reach the standard quick-freezing temperature below-18 ℃.

Preferably, exhaust chambers are arranged on two sides of the conveying belt and communicated with the front side and the rear side of the unit type quick-freezing bin. The exhaust chamber is used for ensuring that air flow entering the unit type quick-freezing chamber from the first air chamber and the second air chamber is smoothly discharged out of the unit type quick-freezing chamber after carrying heat, and the cooling effect is effectively improved.

Preferably, the unit type quick-freezing bin is fixedly connected to the conveying belt, the top of the unit type quick-freezing bin is of a cover-lifting structure, and the tail of the transmission chain is provided with a storage bin. The tail part of the conveying belt is of an inward rolling structure and continuously moves towards the starting end of the transmission chain to perform circulating work, the unit type quick-freezing bin is still connected to the conveying belt to wait for the next circulating work after leaving the working area of the refrigerating assembly along with the conveying belt, and the corn cobs loaded in the unit type quick-freezing bin leave the unit type quick-freezing bin from the top of the unit type quick-freezing bin along with gravity and enter the storage bin. The arrangement of the cover lifting structure ensures smooth air inlet of the first air inlet, and enables the unit type quick-freezing bin to smoothly discharge the corn cobs subjected to internal quick-freezing after leaving the refrigerating assembly.

Preferably, a water absorbing layer is arranged on the inner wall of the unit type quick-freezing bin. The layer that absorbs water is used for absorbing the surplus moisture that the corn-on-cob rotated the process and throwed away, avoids the inside condition that frosts to cause the corn-on-cob to freeze in the inner wall that appears in unit formula quick-freeze storehouse, influences the quick-freeze process flow of corn-on-cob.

Preferably, the water-absorbing layer is an elastic member. The layer that absorbs water cushions the protection through its elastic construction to the corn-on-cob when avoiding the inside ice sheet that forms in unit formula quick-freeze storehouse, avoids the corn-on-cob to bump the damage appears in unit formula quick-freeze storehouse inner wall in the rotation process, influences the whole quality of corn-on-cob.

Therefore, the invention has the following beneficial effects: (1) the corn cobs are directly quick-frozen by the refrigeration assembly, residual water in the corn cobs is discharged by matching with the rotary corn drainage mechanism, so that the separation of redundant water in the corn cobs is realized, the influence of the redundant water on the corn cobs in the quick-freezing process is avoided, the adhesion among corn kernels can be prevented, the freezing expansion of the positions with more residual water is also avoided, the integrity of the corn cobs is kept, the quick freezing is realized, and the appearance effect of the corn cobs is ensured; (2) the wind direction of the first air inlet is opposite to that of the second air inlet, the first air inlet and the second air inlet are respectively arranged on two sides of the corn cob and are matched to drive the corn cob to rotate along a preset direction, and the wind speeds of the first air chamber and the second air chamber determine the rotating speed of the corn cob; (3) the core part of the corn cob can be deeply cooled by wind power, so that the problems that the corn cob is excessively subjected to internal and external temperature difference in the quick-freezing process and is damaged due to insufficient internal cooling degree are solved, the integrity of the quick-freezing effect is ensured, and the quality of the corn cob is further ensured; (4) the axial flow fan is matched with low-temperature gas output by the evaporator to realize drainage and quick freezing of the corn cobs, the rotating speed of the corn cobs can be adjusted by changing the flow speed of the axial flow fan, and meanwhile, the air speed also determines the cooling speed of the corn cobs, namely, the faster the flow speed is, the more heat is dissipated in unit time, and the faster the corn cobs are cooled; (5) the drainage section ensures the high rotating speed of the corn cobs through high wind speed, so that most of redundant moisture is smoothly drained during the quick rotation of the corn cobs; the temperature of the evaporator of the quick cooling section is lower than that of the evaporator of the drainage section, so that the corn cob can pass through the maximum ice crystal generation zone at 0-5 ℃ as soon as possible, and the generation of large ice crystals in the corn kernels is reduced as far as possible; the deep cooling section can assist an evaporator with lower temperature to accelerate the heat loss of the corn cobs, and the whole corn cobs are ensured to reach the standard quick-freezing temperature below-18 ℃; (6) the layer that absorbs water cushions the protection through its elastic construction to the corn-on-cob when avoiding the inside ice sheet that forms in unit formula quick-freeze storehouse, avoids the corn-on-cob to bump the damage appears in unit formula quick-freeze storehouse inner wall in the rotation process, influences the whole quality of corn-on-cob.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

In the figure: 1. conveying belt, 2, refrigerating assembly, 201, drainage section, 201, quick cooling section, 203, deep cooling section, 21, evaporator, 22, axial flow fan, 3, rotary corn cob drainage mechanism, 31, first air chamber, 311, first air inlet, 32, second air chamber, 321, first air inlet, 4, unit type quick freezing bin, 5, exhaust chamber, 6, storage bin, 7, water absorption layer, 8, grid conveying belt, 9, corn cob.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.