Pressing cage shell cooling device of double-helix oil press

Abstract

The utility model provides a pressing cage shell cooling device of a double-helix oil press, which comprises a pressing cage internally provided with a plurality of rows of pressing strip wedges, an upper helix and a lower helix which rotate relatively are arranged in the pressing strip wedges, and a cooling water circulating pipeline is arranged at the tail part of the pressing strip wedges, so that the temperature of materials is reduced, and the protein denaturation rate is reduced. The pressing cage is composed of a plurality of fixing plates which are connected and fixed through hinge shafts and locking bolts, and maintenance and overhaul are convenient; the pressing strip wedge comprises 3-shaped side sealing plates which are assembled into an 8-shaped structure through a screw rod, and an S-shaped water channel is arranged to enhance the heat exchange efficiency. The external cooling system is composed of a cooling water tank, a condenser and a water pump, and low-temperature recycling of cooling water is ensured. Cooling water enters the cooling water circulation pipeline in the pressing strip wedge through the water inlet pipe and then returns to the cooling water tank through the water return pipe, and the material temperature is effectively controlled. Through the design, not only are the oil extraction efficiency and quality improved, but also protein denaturation is remarkably reduced, and the overall utilization value of soybean resources is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil presses, specifically to a cooling device for the press cage of a double-screw oil press. Background Technology

[0002] In the field of oil processing, particularly in the pressing of oilseeds such as soybeans, traditional high-temperature pressing methods, while effectively extracting oil, also present significant problems: the high-temperature environment causes denaturation of soybean proteins. This denaturation not only reduces the nutritional value and functional properties of soybean proteins but also severely limits the overall utilization efficiency of soybean resources. With the increasing market demand for high-quality plant proteins and the rising requirements for resource utilization efficiency, minimizing protein denaturation while ensuring efficient oil extraction has become a crucial research direction in this field.

[0003] In traditional high-temperature pressing processes, frictional heat and other factors cause a rapid rise in the temperature of the material, leading to changes in the protein structure of soybeans, i.e., denaturation. This protein denaturation severely affects the quality and application range of subsequent products; for example, when used in food additives or nutritional supplements, its nutritional value is significantly reduced.

[0004] Protein denaturation during high-temperature pressing directly leads to a decrease in the overall utilization rate of soybeans as a raw material. Besides oil extraction efficiency, effectively preserving and utilizing the protein components in soybeans has become an urgent problem to be solved. Utility Model Content

[0005] The main objective of this invention is to provide a cooling device for the press cage of a double-screw oil press, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: including multiple rows of pressing bar wedges inside the pressing cage, with an upper spiral and a lower spiral rotating relative to each other inside the pressing bar wedges, and a cooling water circulation pipe provided in the pressing bar wedges at the tail of the upper spiral and the lower spiral for cooling the material and reducing the protein denaturation rate;

[0007] The press cage includes multiple fixed plates arranged in a relatively opposite array. The bottom of the multiple fixed plates is hinged together by a hinge shaft, and the two ends of two opposite fixed plates are connected and fixed by locking bolts.

[0008] The pressing bar wedge includes multiple side sealing plates arranged in an opposite array. The two opposite side sealing plates are connected and fixed at both ends by screws. A side sealing plate fixing seat is fixed on the fixing plate, and the side sealing plate fixing seat is connected to the threaded hole in the middle of the side sealing plate by bolts.

[0009] Preferably, the multiple fixed plates of the array are connected and fixed together by multiple connecting shafts.

[0010] Preferably, the side sealing plate is in the shape of a "3", and the two opposite side sealing plates are assembled into a figure-eight shape, with the upper and lower spirals rotating between the two side sealing plates.

[0011] Preferably, multiple connecting seats are fixed at both ends of the side sealing plate, and the connecting seats on two opposite side sealing plates are connected and fixed by screws.

[0012] Preferably, the side sealing plate has an S-shaped water channel inside, an outlet at the bottom and an inlet at the top, and the outlet and inlet are connected to the S-shaped water channel.

[0013] The inlet and outlet pipes in the cooling water circulation system are connected to the inlet and outlet water inlet, respectively.

[0014] Preferably, multiple water pipe fixing seats are fixed on the fixing plate, and the inlet pipe and return pipe of the cooling water circulation system are installed on the water pipe fixing seats.

[0015] Preferably, the side sealing plates are provided with multiple oil drainage gaps.

[0016] This invention provides a cooling device for the press cage of a double-screw oil press. By circulating cooling water into the press bar wedges, the material inside the press cage is cooled, reducing protein denaturation. The cooling water is reused repeatedly through a closed-loop system, saving water resources and meeting environmental protection requirements. A condenser, in conjunction with a water pump, achieves precise temperature control, avoiding energy waste and improving the system's energy efficiency ratio. This invention solves the problems of nutrient loss and high residual oil rate in traditional soybean processing, providing an efficient, low-consumption, and safe solution for the high-value utilization of soybeans, aligning with the green development trend of the food industry. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a front view of the press cage structure of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Sectional view of AA;

[0020] Figure 3 This is a sectional view of the side sealing plate of this utility model;

[0021] Figure 4 This is a utility model Figure 3 Side view;

[0022] Figure 5 This is a schematic diagram of the internal waterway of the side sealing plate of this utility model.

[0023] In the diagram: 1. Press cage; 101. Fixing plate; 102. Water pipe fixing seat; 103. Locking bolt; 104. Connecting shaft; 105. Side sealing plate fixing seat; 106. Hinge shaft; 2. Press bar wedge; 201. Side sealing plate; 202. Screw; 203. Connecting seat; 204. Water inlet pipe; 205. Oil discharge gap; 206. Threaded hole; 207. Water outlet; 208. Water inlet; 209. Water channel; 210. Upper spiral; 3. Lower spiral; 4. Detailed Implementation

[0024] like Figures 1-5 As shown, a cooling device for the press cage shell of a double-screw oil press includes multiple rows of press bar wedges 2 inside the press cage 1. The press bar wedges 2 have an upper screw 3 and a lower screw 4 that rotate relative to each other. Cooling water circulation pipes are provided in the press bar wedges 2 at the tail of the upper screw 3 and the lower screw 4 for cooling the material and reducing the protein denaturation rate.

[0025] The press cage 1 includes multiple fixed plates 101 arranged in opposite arrays. The bottoms of the multiple fixed plates 101 are hinged by hinge shafts 106, and the two ends of two opposite fixed plates 101 are connected and fixed by locking bolts 103.

[0026] The pressing bar wedge 2 includes multiple side sealing plates 201 arranged in a relatively opposite array. The two opposite side sealing plates 201 are connected and fixed at both ends by screws 202. A side sealing plate fixing seat 105 is fixed on the fixing plate 101. The side sealing plate fixing seat 105 is connected to the threaded hole 207 in the middle of the side sealing plate 201 by bolts.

[0027] The cooling water circulation pipe inside the press wedge 2 is connected to the external cooling water circulation system. The external cooling water circulation system includes a cooling water tank and a water pump. The cooling water tank is equipped with a condenser to ensure that the cooling water in the cooling water tank is at a low temperature. The cooling water circulation pipe inside the press wedge 2 is connected to the cooling water tank through the inlet pipe 204 and the return pipe 205. The water pump is installed on the inlet pipe 204 and pumps the cooling water into the cooling water circulation pipe inside the press wedge 2. This can cool the material at the tail of the upper spiral 3 and the lower spiral 4 and prevent the material from rubbing against each other, which would cause protein denaturation.

[0028] Preferably, the array of multiple fixing plates 101 are connected and fixed together by multiple connecting shafts 104. The multiple fixing plates 101 are connected and fixed together by multiple connecting shafts 104, and two opposing fixing plates 101 are hinged and rotated by hinge shafts 106 and connected and fixed by locking bolts 103 at both ends, thereby providing stable support for the internal pressing wedge 2. The two opposing fixing plates 101 can also rotate and unfold relative to each other, facilitating maintenance and repair of the pressing wedge 2 and the screw.

[0029] Preferably, the side sealing plate 201 is in the shape of a "3", and the two opposite side sealing plates 201 are assembled in the shape of an "8", with the upper spiral 3 and the lower spiral 4 rotating between the two side sealing plates 201.

[0030] Multiple connecting seats 203 are fixed at both ends of the side sealing plate 201, and the connecting seats 203 on the two opposite side sealing plates 201 are connected and fixed by screws 202.

[0031] The screw 202 can be used to assemble and fix the two opposite side sealing plates 201. The outer middle part of the side sealing plate 201 is also connected to the side sealing plate fixing seat 105 on the fixing plate 101 by multiple bolts to ensure that the installation and fixing of the pressing bar wedge 2 is reliable.

[0032] Preferably, the side sealing plate 201 has an S-shaped water channel 210 inside, an outlet 208 at the bottom and an inlet 209 at the top, and the outlet 208 and the inlet 209 are connected to the S-shaped water channel 210.

[0033] The inlet pipe 204 and the return pipe 205 in the cooling water circulation system are connected to the inlet 209 and the outlet 208, respectively.

[0034] Cooling water in the cooling water circulation system is pumped from the inlet pipe 204 into the S-shaped water channel 210, thereby cooling the material at the side sealing plate 201 and reducing the protein denaturation rate. After heat exchange, the cooling water flows back into the cooling water circulation system from the return pipe 205.

[0035] Multiple water pipe fixing seats 102 are fixed on the fixing plate 101. The inlet pipe 204 and return pipe 205 of the cooling water circulation system are installed on the water pipe fixing seats 102. The water pipe fixing seats 102 can install and fix the inlet pipe 204 and return pipe 205 to ensure that the installation is stable and reliable.

[0036] Preferably, the side sealing plate 201 is provided with multiple oil drainage gaps 206. The oil drainage gaps 206 penetrate through the side sealing plate 201 to ensure the passage of oil after pressing.

[0037] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A cooling device for the press cage shell of a double-screw oil press, comprising multiple rows of press bar wedges (2) inside the press cage (1), wherein the press bar wedges (2) have an upper spiral (3) and a lower spiral (4) rotating relative to each other, characterized in that: Cooling water circulation pipes are provided in the press bar wedges (2) at the tail of the upper spiral (3) and the lower spiral (4) to cool the material and reduce the protein denaturation rate; The press cage (1) includes multiple fixed plates (101) arranged in a relative array. The bottom of the multiple fixed plates (101) is hinged by a hinge shaft (106), and the two ends of two opposite fixed plates (101) are connected and fixed by locking bolts (103). The pressing bar wedge (2) includes multiple side sealing plates (201) arranged in a relative array. The two opposite side sealing plates (201) are connected and fixed at both ends by screws (202). A side sealing plate fixing seat (105) is fixed on the fixing plate (101). The side sealing plate fixing seat (105) is connected to the threaded hole (207) in the middle of the side sealing plate (201) by bolts.

2. The cooling device for the press cage of a double-screw oil press according to claim 1, characterized in that: The array of multiple fixed plates (101) are connected and fixed together by multiple connecting shafts (104).

3. The cooling device for the press cage of a double-screw oil press according to claim 1, characterized in that: The side sealing plate (201) is in the shape of a 3, and the two opposite side sealing plates (201) are assembled into a figure 8 shape. The upper spiral (3) and the lower spiral (4) rotate between the two side sealing plates (201).

4. The cooling device for the press cage of a double-screw oil press according to claim 1, characterized in that: Multiple connecting seats (203) are fixed at both ends of the side sealing plate (201), and the connecting seats (203) on the two opposite side sealing plates (201) are connected and fixed by screws (202).

5. The cooling device for the press cage of a double-screw oil press according to claim 1, characterized in that: The side sealing plate (201) is provided with an S-shaped water channel (210) inside. The bottom of the side sealing plate (201) is provided with an outlet (208) and the top is provided with an inlet (209). The outlet (208) and the inlet (209) are connected to the S-shaped water channel (210). The inlet pipe (204) and return pipe (205) in the cooling water circulation system are connected to the inlet (209) and outlet (208) respectively.

6. The cooling device for the press cage of a double-screw oil press according to claim 1, characterized in that: Multiple water pipe fixing seats (102) are fixed on the fixing plate (101), and the inlet pipe (204) and return pipe (205) of the cooling water circulation system are installed on the water pipe fixing seats (102).

7. A cooling device for the press cage of a double-screw oil press according to any one of claims 1, 3 to 5, characterized in that: Multiple oil drainage gaps (206) are provided on the side sealing plate (201).

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