Oil press cake conveying device

Abstract

The utility model provides an oil material press cake conveying device, which relates to the technical field of oil material processing, and comprises a housing, a conveyor belt and a fan, the housing is provided with a cake inlet, an air inlet and an air exhaust part, and the air exhaust part is arranged between the cake inlet and the air inlet; the conveying belt is arranged in the shell cover, a first air flow channel and a second air flow channel are arranged in the shell cover, and the first air flow channel is communicated with the cake inlet and the exhaust part. The shell cover is provided with the cake inlet, the air inlet and the air exhaust part, so that the first air flow channel and the second air flow channel are formed in the shell cover, negative pressure is formed in the air exhaust part by the fan, external air is introduced into the first air flow channel and the second air flow channel, the pressed cakes are secondarily cooled in the pressed cake conveying process, and the pressed cakes are cooled to be uniform. The temperature can be effectively reduced during subsequent packaging, so that quick packaging operation of the press cakes is realized, and packaging treatment after cooling in a special field is not needed.

Description

Technical Field

[0001] This utility model relates to the field of oil processing technology, and in particular to an oil press cake conveying device. Background Technology

[0002] Oilseeds such as rapeseed, peanuts, sesame, and flax are generally pressed for oil using a screw press. Regardless of whether these oilseeds undergo heating treatments such as steaming or roasting before entering the press, the oil is extracted from the oilseeds under the squeezing action of the screw. The defatted, dense residue is squeezed out from the end of the press in a tile-like shape. This tile-like dense residue is commonly referred to as press cake. Press cake is mainly transported using screw conveyors, scraper conveyors, and pneumatic conveyors. For example, the oilseed press cake conveying device disclosed in publication number CN112387744A uses pneumatic conveying for press cake transport.

[0003] During oilseed pressing, the oilseeds enter the pressing screw, where they are continuously compacted under the squeezing action of the screw. Due to friction, the temperature rises significantly; the temperature of the cake immediately exiting the screw press can sometimes exceed 120°C. If the freshly pressed cake is immediately bagged and packaged after being conveyed by scrapers, it is prone to heat buildup and spontaneous combustion, leading to a fire. To avoid this, oil mills typically transport the freshly pressed cake to an open area in the cake storage area, spread it out, and allow it to cool naturally until it reaches room temperature before packaging it. This prevents spontaneous combustion. However, this method of spreading and naturally cooling the pressed cake requires a large area and is time-consuming and labor-intensive, making it unsuitable for factories with high pressing volumes. Utility Model Content

[0004] In view of this, the present invention proposes an oilseed cake conveying device. By setting a cake inlet, an air inlet, and an exhaust section on the shell, a first air flow channel and a second air flow channel are formed inside the shell. A fan creates negative pressure in the exhaust section, drawing outside air into the first and second air flow channels. This allows for secondary cooling of the pressed cake during the conveying process, effectively reducing its temperature during subsequent packaging. This enables rapid packaging of the pressed cake without the need for a dedicated area for post-cooling packaging.

[0005] The technical solution of this utility model is achieved as follows: This utility model provides an oilseed cake conveying device, including a shell, a conveyor belt, and a blower, wherein,

[0006] The housing is provided with a cake inlet, an air inlet, and an exhaust section, with the exhaust section located between the cake inlet and the air inlet.

[0007] The conveyor belt is set inside the housing, and the housing is provided with a first air flow channel and a second air flow channel. The first air flow channel connects the cake inlet and the exhaust section, and the second air flow channel connects the exhaust section and the air inlet, so that when the air flows through the first air flow channel and the second air flow channel, the pressed cake on the conveyor belt can be cooled.

[0008] The blower is connected to the exhaust section. The blower creates negative pressure in the exhaust section, allowing outside air to enter the first air channel and the second air channel through the cake inlet and the air inlet, thereby cooling the oil cake on the conveyor belt.

[0009] Based on the above technical solutions, preferably, the shell is also provided with a cake outlet, the cake inlet and the cake outlet are respectively located at both ends of the shell, and the air inlet is located between the cake outlet and the exhaust section.

[0010] A further preferred embodiment includes a cyclone separator, which is fixed relative to the housing. The cyclone separator includes an air inlet end and an air outlet end, with the air inlet end connected to the air outlet section and the air outlet end connected to the fan.

[0011] More preferably, the cyclone separator further includes a discharge end, which is connected to the cake outlet.

[0012] More preferably, it also includes an airlock, which is installed on the discharge end of the cyclone separator and connected to the cake outlet.

[0013] More preferably, the housing includes a lifting section, which is disposed between the air inlet and the cake outlet.

[0014] More preferably, it also includes an air guide duct, the two ends of which are respectively connected to the exhaust section and the air inlet of the cyclone separator.

[0015] Based on the above technical solutions, preferably, the conveyor belt is provided with multiple baffles, the baffles are arranged along the width direction of the conveyor belt, and the multiple baffles are arranged at equal intervals on the conveyor belt.

[0016] The oilseed cake conveying device of this utility model has the following advantages over the prior art:

[0017] (1) By setting a cake inlet, an air inlet and an exhaust section on the shell, a first air flow channel and a second air flow channel are formed inside the shell. The fan creates negative pressure in the exhaust section, and introduces outside air into the first air flow channel and the second air flow channel. Thus, the cake is cooled twice during the transmission process, and its temperature can be effectively reduced during subsequent packaging. This enables the rapid packaging of the cake without the need for a special site for cooling and packaging.

[0018] (2) A cyclone separator is installed, and its air inlet is connected to the exhaust section, and the exhaust end is connected to the blower. The installed cyclone separator can separate the residue from the flowing air through the centrifugal action and deposit it in the cyclone separator. This avoids some cake residue being discharged into the air along with the hot air when the air is cooling the press cake through the first air channel and the second air channel, so as to ensure the recovery of oil. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the oilseed cake conveying device of this utility model;

[0021] Figure 2 This is a schematic diagram of the conveyor belt inside the casing of the oilseed cake conveying device of this utility model;

[0022] Figure 3 This is a schematic diagram of the airflow direction of the oilseed cake conveying device of this utility model. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] like Figure 1-3 As shown, the oilseed cake conveying device of this utility model includes a housing 1, a conveyor belt 2 and a blower 3.

[0025] The housing 1 is provided with a biscuit inlet 101, an air inlet 102 and an exhaust section 103. The exhaust section 103 is located between the biscuit inlet 101 and the air inlet 102. Specifically, the housing 1 is elongated and hollow inside. Several openings are provided on the housing 1, which serve as the biscuit inlet 101, the air inlet 102 and the exhaust section 103 respectively. The housing 1 can be made of stainless steel.

[0026] To reduce manual handling costs and improve processing line efficiency, the cake inlet 101 can be set in a funnel shape and placed at the discharge port of the oil press, i.e., the position where the pressed cake is discharged from the oil press, so that the pressed cake can directly enter the cake inlet 101 under the action of gravity.

[0027] The conveyor belt 2 is located inside the housing 1. The housing 1 is provided with a first air flow channel and a second air flow channel. The first air flow channel connects the cake inlet 101 and the exhaust section 103, and the second air flow channel connects the exhaust section 103 and the air inlet 102, so that when the air flows through the first air flow channel and the second air flow channel, the pressed cake on the conveyor belt 2 can be cooled.

[0028] In this embodiment, the conveyor belt 2 is arranged along the length of the shell 1. The conveyor belt 2 is installed inside the shell 1 and is completely wrapped by the shell 1. One end of the conveyor belt 2 needs to be placed at the bottom of the cake inlet 101 so that after the pressed cake enters the shell 1, it falls onto the conveyor belt 2 and is thus driven by the conveyor belt 2 to move toward the other end of the shell 1.

[0029] Since one side of the conveyor belt 2 contacts and transports the pressed cake, while the other side of the conveyor belt 2 does not contact the pressed cake, a first air channel and a second air channel are provided between the shell 1 and the side of the conveyor belt 2 that contacts the pressed cake. Through the first air channel, air flows from the cake inlet 101 to the exhaust vent 103, and exchanges heat with the pressed cake once to achieve initial cooling of the pressed cake. Through the second air channel, air flows from the air inlet 102 to the exhaust vent 103, and exchanges heat with the pressed cake a second time. Through two cooling processes, the temperature of the pressed cake can be greatly reduced, enabling direct packaging.

[0030] In addition, in order to drive the conveyor belt 2 to rotate, a drive motor connected to the conveyor belt 2 is also installed on the outside of the housing 1. The drive motor is connected to the roller group on the conveyor belt 2 through a belt to realize the transmission connection.

[0031] The blower 3 is connected to the exhaust section 103. The blower 3 creates negative pressure in the exhaust section 103, so that outside air enters the first air flow channel and the second air flow channel through the cake inlet 101 and the air inlet 102 to cool the oil cake on the conveyor belt 2.

[0032] In this embodiment, by providing a cake inlet 101, an air inlet 102, and an exhaust 103 on the housing 1, a first air flow channel and a second air flow channel are formed inside the housing 1. The fan 3 creates negative pressure in the exhaust 103, introducing outside air into the first air flow channel and the second air flow channel. This allows for secondary cooling of the pressed cake during the conveying process, effectively reducing its temperature during subsequent packaging. This enables rapid packaging of the pressed cake without the need for a dedicated area for cooling and packaging.

[0033] In one embodiment, the housing 1 is further provided with a dough outlet 104. The dough inlet 101 and the dough outlet 104 are respectively located at both ends of the housing 1. The air inlet 102 is located between the dough outlet 104 and the exhaust section 103. The two ends of the conveyor belt 2 are respectively placed outside the dough inlet 101 and the dough outlet 104. Specifically, the conveyor belt 2 is located at the bottom of the dough inlet 101 and at the top of the dough outlet 104. The dough can be fed and discharged by gravity.

[0034] In some embodiments, a cyclone separator 4 is also provided. The cyclone separator 4 is fixed relative to the housing 1. The cyclone separator 4 includes an air inlet end and an air outlet end. The air inlet end is connected to the air outlet 103, and the air outlet end is connected to the blower 3. The cyclone separator 4 can separate the residue from the flowing air through the centrifugal action and deposit it in the cyclone separator 4. This prevents some cake residue from being discharged into the air along with the hot air when the air is cooling the press cake through the first air channel and the second air channel, so as to ensure the recovery of oil.

[0035] To avoid the need for separate packaging when cleaning the slag deposited in the cyclone separator 4, in some embodiments, the cyclone separator 4 also includes a discharge end connected to the cake outlet 104. By connecting the discharge end of the cyclone separator 4 to the cake outlet 104, the slag deposited in the cyclone separator 4 can be discharged together through the cake outlet 104 when cleaning, so that all oil packaging operations can be completed by a single cake outlet 104, thereby reducing production line processes and lowering labor costs.

[0036] Considering that the discharge end of the cyclone separator 4 cannot be opened for a long time to avoid air directly entering the cyclone separator 4 through the cake outlet 104, in some embodiments, an air shut-off device 5 is also provided. The air shut-off device 5 is set on the discharge end of the cyclone separator 4 and connected to the cake outlet 104. The air shut-off device 5 has the same structure as the unloading valve and can be opened after the slag accumulates to a certain extent to discharge and package the slag.

[0037] In some embodiments, since the housing 1 is to receive the pressed cake discharged from the oil press, its cake inlet 101 is set at a low horizontal position. However, in order to facilitate packaging, the cake outlet 104 needs to be set at a certain height to facilitate bagging and packaging operations. Therefore, the housing 1 includes a lifting section 11, which is set between the air inlet 102 and the cake outlet 104. This setting takes into account that the lifting section 11 has a certain angle relative to the horizontal transmission segment, which will increase the resistance to air entry. At the same time, blowing the pressed cake on the inclined surface may cause the pressed cake to fall down the inclined surface. Therefore, the lifting section 11 is set between the air inlet 102 and the cake outlet 104.

[0038] In some embodiments, in order to connect the exhaust section 103 and the cyclone separator 4 and realize the connection between the fan 3 and the exhaust section 103, an air guide pipe 6 is also provided. The two ends of the air guide pipe 6 are respectively connected to the air inlet of the exhaust section 103 and the air inlet of the cyclone separator 4, and the air guide pipe 6 is arranged in an L shape.

[0039] In some embodiments, to prevent the air flowing in the first air channel and the second air channel from pushing the pressed cake to move relative to each other on the conveyor belt 2, the conveyor belt 2 is provided with a plurality of baffles 21. The baffles 21 are arranged along the width direction of the conveyor belt 2 and the plurality of baffles 21 are arranged at equal intervals on the conveyor belt 2. A transmission grid is formed between two adjacent baffles 21, thereby preventing the pressed cake from sliding relative to the conveyor belt 2 and improving the stability of the transmission.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oil expeller cake conveying device, characterized by: It comprises a shell (1), a conveying belt (2) and a fan (3), wherein, The shell (1) is provided with an entering cake port (101), an air inlet (102) and an air exhaust part (103), and the air exhaust part (103) is arranged between the entering cake port (101) and the air inlet (102); The conveying belt (2) is arranged inside the shell (1), and the shell (1) is provided with a first air flow channel and a second air flow channel, the first air flow channel communicates with the entering cake port (101) and the air exhaust part (103), and the second air flow channel communicates with the air exhaust part (103) and the air inlet (102), so that the air flowing in the first air flow channel and the second air flow channel can cool the pressed cake on the conveying belt (2); The fan (3) communicates with the air exhaust part (103), and the fan (3) forms a negative pressure in the air exhaust part (103), so that external air enters the first air flow channel and the second air flow channel through the entering cake port (101) and the air inlet (102), and the oil pressed cake on the conveying belt (2) is cooled.

2. The oil mill cake conveying device according to claim 1, characterized in that: The shell (1) is also provided with an exiting cake port (104), and the entering cake port (101) and the exiting cake port (104) are respectively located at two ends of the shell (1), and the air inlet (102) is located between the exiting cake port (104) and the air exhaust part (103).

3. The oil mill cake conveying device according to claim 2, characterized in that: It also comprises a cyclone separator (4) which is fixed opposite to the shell (1), and the cyclone separator (4) comprises an air inlet end and an air exhaust end, the air inlet end communicates with the air exhaust part (103), and the air exhaust end communicates with the fan (3).

4. The oil expeller cake conveying apparatus as claimed in claim 3, wherein: The cyclone separator (4) also comprises a discharge end which is connected to the exiting cake port (104).

5. The oil expeller cake conveying apparatus as claimed in claim 4, wherein: It also comprises an air locking device (5) which is arranged on the discharge end of the cyclone separator (4) and communicates with the exiting cake port (104).

6. The oil mill cake conveying device according to claim 2, characterized in that: The shell (1) comprises a lifting section (11) which is arranged between the air inlet (102) and the exiting cake port (104).

7. The oil mill cake conveying device according to claim 3, characterized in that: It also comprises an air guide pipe (6) which communicates with the air exhaust part (103) and the air inlet end of the cyclone separator (4) at two ends respectively.

8. The oil mill cake conveying device as claimed in claim 1, wherein: The conveying belt (2) is provided with a plurality of blocking strips (21), the blocking strips (21) are arranged along the width direction of the conveying belt (2), and a plurality of the blocking strips (21) are arranged at equal intervals on the conveying belt (2).

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