CN-224219367-U - Cold pressing lemon juice equipment

Abstract

The utility model relates to cold-pressed lemon juice equipment which comprises a lemon juice pressing module, a lemon juice cooling module and a nitrogen protection module, wherein the pressing module is used for realizing lemon cutting and juice extrusion through a feeding hopper, a blade assembly, a feeding roller and a pair of rolling rollers, the cooling module is used for realizing accurate temperature control of 4 ℃ of lemon juice by matching a spiral cooling coil with a stirrer and combining a temperature sensor and a flow control valve, an 8cm heat preservation interlayer is arranged on the outer side of the cooling cylinder, and the nitrogen protection module is used for charging nitrogen and discharging oxygen before juicing through a nitrogen inlet below a screen and a nitrogen outlet at the top of the cooling cylinder to form an anaerobic barrier. The device also comprises a raw material precooling module at 4-10 ℃. The utility model effectively inhibits thermal oxidation and flavor deterioration, shortens quick-freezing time and reduces energy consumption through full-process low-temperature control and nitrogen seal protection, and is suitable for large-scale production of high-quality lemon juice.

Inventors

• ZHANG XIANG
• Geng Shaomeng
• ZHOU SHILEI
• XU DEZHI
• DING YI
• JIANG YUNZHOU
• LIN XIAOYU
• TIAN JIE
• ZHAO YAN

Assignees

• 北京火星补给科技文化有限公司

Dates

Publication Date

20260512

Application Date

20250521

Claims (8)

1. 1. The cold-pressing lemon juice equipment is characterized by comprising a lemon juice pressing module, a lemon juice cooling module and a nitrogen protection module; The lemon juice squeezing module comprises a feeding hopper (1), a first blade assembly (2), a first feeding roller (3), a second blade assembly (4), a second feeding roller (5), a first pressing roller (7), a second pressing roller (8) and a screen (6), wherein the bottom of the feeding hopper (1) is in butt joint with the first feeding roller (3), the output end of the first feeding roller (3) corresponds to a slitting area of the first blade assembly (2) and the second blade assembly (4), the slit lemon blocks are conveyed to a counter-roller squeezing area of the first pressing roller (7) and the second pressing roller (8) through the second feeding roller (5), and squeezed lemon juice flows into the lemon juice cooling module after being filtered by the screen (6); The lemon juice cooling module comprises a cooling cylinder, a temperature sensor (9), a flow control valve (14) and a cooling coil pipe (19), wherein the cooling cylinder, the temperature sensor (9), the flow control valve (14) and the cooling coil pipe (19) are arranged below the lemon juice squeezing module; The nitrogen protection module comprises a nitrogen inlet (13) and a nitrogen outlet (12), wherein the nitrogen inlet (13) is arranged at the joint of the lower part of the screen (6) and the top of the cooling cylinder, and the nitrogen outlet (12) is arranged at the top of the cooling cylinder and is used for charging nitrogen into the cooling cylinder before juicing and discharging oxygen to form a nitrogen barrier.
2. 2. A cold-pressing lemon juice apparatus as claimed in claim 1, wherein the first and second pressing rollers (7, 8) are driven by separate motors respectively, rotating in clockwise and anticlockwise directions, for pressing the cut lemon blocks out of the juice.
3. 3. The cold-pressing lemon juice apparatus according to claim 1, wherein a heat-insulating interlayer with a thickness of 8cm is arranged on the outer side of the cooling cylinder, and the heat-insulating material is filled in the cooling cylinder.
4. 4. A cold-press lemon juice apparatus as claimed in claim 1, wherein the cooling coil (19) is a spiral pipe having a diameter of 5cm, and the cooling water flows in from the side lower inlet of the cooling cylinder and flows out from the side upper outlet.
5. 5. Cold-pressing lemon juice apparatus according to claim 1, characterized in that said lemon juice channel (18) is also provided with a lemon juice outlet control valve (17), said lemon juice outlet control valve (17) being electrically connected to said temperature sensor (9).
6. 6. A cold press lemon juice apparatus as claimed in claim 1, wherein the cooling cylinder is cylindrical in shape.
7. 7. A cold-press lemon juice apparatus as claimed in claim 1, wherein the cooling coil (19) is spaced 5cm from the inner wall of the cooling cylinder.
8. 8. Cold-pressing lemon juice apparatus according to any of claims 1 to 7, characterised in that the cooling vat is provided with a stirrer (10) at the bottom.

Description

Cold pressing lemon juice equipment Technical Field The utility model relates to the technical field of juicing equipment, in particular to cold-juicing lemon juice equipment. Background Lemon juice is an important raw material in the field of food processing, and flavor and nutrition maintenance of the lemon juice is a core problem of industrial interest. The fresh lemon juice is rich in nutrient components such as vitamin C, sugar, mineral matters and the like, but the quality of the fresh lemon juice is easily degraded in the processing process due to the acid sensitivity and the oxidation sensitivity of the fresh lemon juice. The existing mainstream lemon juice equipment has obvious defects in process design, and the requirements of the modern food industry on high-quality juice are difficult to meet. The existing lemon juicing equipment (such as 'a lemon juicing equipment' disclosed in CN 202022278892) mainly realizes juicing by feeding the lemon to be juiced to a feed inlet through a conveyor belt, crushing the lemon by a gear set, extruding juice through a rotary blade matched with an extrusion ring, separating the juice by a filter screen, and flowing into a temporary storage cylinder. Although the equipment realizes the basic juice squeezing function, the equipment has obvious defects in the aspects of temperature control, antioxidation protection and structural design. The core defects of the prior art are as follows: 1. absence of temperature control mechanism The existing equipment is not provided with a raw material precooling link, lemon fruits directly enter a juice extracting process at the ambient temperature, and the temperature of the fruits is higher and the fluctuation is larger due to extrusion friction heat production in the juice extracting process. The lemon juice after being juiced flows into a temporary storage cylinder without a temperature regulation function, the temperature is increased due to the influence of the ambient temperature in the filling process, the thermal oxidation reaction is extremely easy to be initiated, and the flavor and the nutritional value of the lemon juice are obviously reduced. 2. Insufficient oxidation protection ability The temporary storage jar of the existing equipment is of an open structure, so that the contact probability of lemon juice with air in the temporary storage and filling processes is high, the time is long, the oxidation reaction is aggravated, and the flavor substances and the nutritional ingredients are damaged. For example, prolonged exposure of lemon juice to air can result in increased oxidation levels, resulting in flavor deterioration, affecting product quality. 3. Structural design causes flavor fluctuation The distance between the extrusion ring and the heat dissipation groove of the existing equipment is too short, heat generated in the juice squeezing process is difficult to effectively dissipate, and the flavor of the lemon juice can be damaged due to temperature dissipation. Meanwhile, the temperature difference of raw materials in different batches is obvious due to no precooling link, the consistency of the flavor of the finished lemon juice is further caused to be poor, and the flavor fluctuation in different time periods is larger. 4. Contradiction between production efficiency and quality Due to the lack of an instant cooling system, the existing process needs to rely on post quick-freezing treatment to cool lemon juice, so that the processing period is prolonged, and the production energy consumption is increased. In addition, the temporary storage cylinder is not provided with a cooling device, so that the problem of deterioration of quality of lemon juice is more remarkable under the condition of limited filling speed, and the higher requirements of consumers on flavor and nutrition are difficult to meet. Therefore, the prior lemon juice extractor has the core defect of failing to solve the problems of temperature control, oxidation protection and flavor stability in the juice extracting process. By means of innovation of the equipment structure, pre-cooling of raw materials before juicing, instant cooling of juice after juicing and anaerobic environment protection are achieved, so that flavor maintaining effect and production energy efficiency of lemon juice are improved, and the technical problem to be solved in the field is urgently solved. The utility model aims at the defects, and aims to provide cold-pressed lemon juice equipment capable of effectively inhibiting thermal oxidation and flavor deterioration by adding a precooling module, a cooling device and a nitrogen protection system. Disclosure of utility model The present application has been made keeping in mind the above problems occurring in the prior art, and an object of the present application is to provide a cold-pressing lemon juice apparatus. In order to achieve the aim of the application, the cold-pressing lemon juice equipment adopts the follo