Filtering device for cottonseed oil production

Abstract

The utility model belongs to the technical field of edible oil refining, and particularly discloses a filtering device for cottonseed oil production, which comprises a stirring tank and a filtering machine, the stirring tank is communicated with the filtering machine through an oil outlet pipeline I, a pipeline I, an oil pump I, a pipeline II and an oil inlet pipeline II; the filter is communicated with the stirring tank through a second oil return pipeline, a third pipeline, a second oil pump, a fourth pipeline and a first oil return pipeline, and a second oil outlet pipeline is arranged on the filter. An existing edible oil filtering device can only achieve single-time filtering of an oil body. The oil pump and the valve are arranged on the pipeline path between the stirring tank and the filter, and reasonable regulation and control of the oil pump and the valve are utilized, so that an oil body is repeatedly circulated according to the sequence from the stirring tank to the filter and then from the filter to the stirring tank, and the oil body is filtered for multiple times and is filtered to a greater extent.

Description

Technical Field

[0001] The utility model relates to the technical field of edible oil refining, in particular to a filtering device for cottonseed oil production. Background Art

[0002] Edible oil refining refers to the process of separating impurities, pigments and odorous substances from raw vegetable oils by physical or chemical methods to make the oil products purer, clearer and lighter in taste. Harmful substances in crude oil are removed through processes such as degumming, decolorization, deacidification, deodorization, dewaxing and degreasing. Edible oil decolorization is an important part of the oil refining process, which is mainly to remove pigments and impurities that have an adverse effect on the appearance and quality of edible oil. The main process of edible oil decolorization includes oil storage and pretreatment, deacidification, activated clay decolorization, filtration, flavoring and filling.

[0003] Among them, filtration treatment is an important part of the edible oil decolorization process. Although bleaching treatment can effectively remove the pigment in the oil, there will be some impurities in the edible oil after decolorization. These impurities mainly include solid residues, ions and soluble impurities, as well as pigments and colloids. These impurities can be further removed by filtration treatment to improve the purity and quality of the edible oil. In actual production, the edible oil decolorization process is usually connected to a filtering device after the decolorization device. The oil after decolorization enters the filtering device for impurity removal, and the edible oil after impurity removal enters the next process.

[0004] Existing edible oil filtering devices have certain shortcomings and deficiencies. For example, the patent with application number 201820856800.7 and publication number CN 208594259U has a working principle that the decolorizing device includes a mixer, a stirring tank and a filter connected in sequence through a pipeline. After the oil and the decolorizing agent are evenly stirred by the stirrer in the mixer, they are pumped into the stirring tank through the feed pump and enter the tubular decolorizer for decolorization. The decolorizing agent removes the residual soap and phospholipid substances in the oil to complete the decolorization. At the same time, high-temperature steam is introduced from the steam inlet to the steam pipe to dry the water remaining in the oil after decolorization, and then the decolorized oil is pumped into the filter through the decolorizing oil extraction pump. Through the multiple filter elements in the filter and the filter cloth on the filter element, the separated decolorizing agent is removed by filtering, and finally the decolorized oil without the decolorizing agent is discharged and collected from the oil outlet pipe.

[0005] However, the device is simply provided with a filter to filter the residual decolorizing agent in the decolorized oil, and can only achieve a single filtration of the oil after decolorization, and only removes a single impurity, and cannot remove most of the impurities in the decolorized oil, and the filtering effect is not good. Utility Model Content

[0006] The purpose of the utility model is to provide a filtering device for cottonseed oil production to solve the problem that the above patent can only filter the oil once.

[0007] To achieve the above-mentioned purpose, the basic scheme provided by the utility model is: a filtering device for cottonseed oil production, comprising a stirring tank and a filter, wherein a stirring unit for stirring cottonseed oil is arranged in the stirring tank, an oil inlet pipeline 1 and an oil outlet pipeline 1 are arranged on the stirring tank, an oil return pipeline 1 is arranged on the stirring tank, one end of the oil outlet pipeline 1 is connected with pipeline 1, the other end of pipeline 1 is connected with oil pump 1, the other end of oil pump 1 is connected with pipeline 2, valves 1 and 2 are arranged on pipeline 1 and pipeline 2 respectively, an oil inlet pipeline 2 is arranged on the filter, the other end of pipeline 2 is connected with oil inlet pipeline 2, an oil return pipeline 2 is arranged on the filter, one end of the oil return pipeline 2 is connected with pipeline 3, the other end of pipeline 3 is connected with oil pump 2, the other end of oil pump 2 is connected with pipeline 4, valves 3 and 4 are arranged on pipeline 3 and pipeline 4 respectively, pipeline 4 is connected with oil return pipeline 1, an oil outlet pipeline 2 is arranged on the filter, valve 5 is arranged on oil outlet pipeline 2, and an exhaust pipeline is arranged on the stirring tank.

[0008] The principle and beneficial effect of the utility model are: when the oil needs to be filtered, the oil pump 1 is controlled to make the oil enter the filter for filtration; when the oil needs to flow back into the mixing tank, the oil pump 2 is controlled to make the oil flow back into the mixing tank; the above operation is repeated until the oil in the mixing tank is filtered; when the oil is filtered, the oil pump 1 is controlled to discharge all the oil in the mixing tank into the filter; the valve 5 is opened to discharge the filtered oil into the next-level edible oil refining device. The oil can be filtered multiple times by reasonable regulation of the oil pump and the valve, which is convenient for removing impurities in the oil to a large extent.

[0009] Scheme 2, which is the preferred basic scheme, also includes a steam-water separator, a liquid return pipe is provided on the mixing tank, one end of the exhaust pipe is connected to pipe 5, the other end of pipe 5 is connected to a vacuum pump, the other end of the vacuum pump is connected to pipe 6, valves 6 and 7 are provided on pipe 5 and pipe 6 respectively, an air inlet pipe is provided on the steam-water separator, pipe 6 is connected to the air inlet pipe, a liquid outlet pipe is provided on the steam-water separator, one end of the liquid outlet pipe is connected to pipe 7, valve 8 is provided on pipe 7, pipe 7 is connected to the liquid return pipe, and an air outlet pipe is provided on the steam-water separator. Since the oil in the mixing tank is hot oil, the hot oil will produce steam, and it is inevitable that a part of small molecular oil liquid group will be mixed in the steam. This part of the oil liquid group will be discharged from the mixing tank with the steam, causing a certain degree of oil loss. This scheme can realize that the mixed gas of air and oil-containing steam in the mixing tank enters the steam-water separator by controlling the vacuum pump and valves 5 and 6. After being processed by the steam-water separator, the oil after removing gas impurities is returned to the mixing tank by controlling valve 7, and the gas impurities are finally discharged through the air outlet pipe. By rationally regulating the vacuum pump and valves, the oil that would otherwise be lost can be effectively recovered.

[0010] Solution 3, which is the preferred basic solution, is that pipeline 1 and pipeline 2 are connected to branch pipe 1 and branch pipe 2 respectively, the other end of branch pipe 1 is connected to oil pump 3, the other end of oil pump 3 is connected to branch pipe 2, and valve 9 and valve 10 are respectively provided on branch pipe 1 and branch pipe 2. By setting branch pipes and adding oil pumps and valves, a backup path is added on the path from the mixing tank to the filter, so as to ensure that the filtering operation can still proceed normally when oil pump 1 fails, and it is convenient to replace or repair oil pump 1 under the premise of normal filtering operation.

[0011] Option 4 is the preferred option of Option 2. Observation mirror 1 is provided on pipeline 2, pipeline 3 and pipeline 7, and observation mirror 2 is provided on the mixing tank. By providing observation mirrors on the mixing tank and the pipeline, it is convenient to understand the degree of oil filtration in real time, and the next action can be adjusted according to the actual situation to ensure that the oil is filtered to a greater extent.

[0012] Scheme 5 is the preferred basic scheme. The stirring unit includes a driving motor, a stirring shaft and stirring blades. The driving motor is located at the top of the stirring tank. One end of the stirring shaft is fixedly connected to the output end of the driving motor. The stirring shaft rotates and runs through the stirring tank. Several stirring blades are fixedly connected to the stirring shaft. The driving motor drives the stirring shaft and the stirring blades to rotate, fully stirring the oil in the stirring tank, so that the oil in the tank is fully mixed and the filtering effect is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of a filtering device for cottonseed oil production;

[0014] Figure 2 It is a cross-sectional view of the mixing tank. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below through specific implementation methods:

[0016] The figure marks in the drawings of the specification include: mixing tank 1, filter 2, oil inlet pipeline 1, oil outlet pipeline 1, oil return pipeline 1, pipeline 1, oil pump 1, pipeline 2, valve 1, valve 2, oil inlet pipeline 2, 11, oil return pipeline 2, pipeline 3, oil pump 2, pipeline 4, valve 3, valve 4, 17, oil outlet pipeline 2, valve 5, 19, stirring unit 20, exhaust pipeline 21, steam-water separator 22, liquid return pipeline 23, pipeline 5, 24, vacuum pump 25, pipeline 6, valve 6, valve 7, valve 7, air inlet pipeline 29, liquid outlet pipeline 30, pipeline 7, valve 8, air outlet pipeline 33, branch pipe 1, branch pipe 2, oil pump 3, valve 9, valve 10, sight glass 1, sight glass 2, driving motor 41, stirring shaft 42, stirring blade 43.

[0017] Example

[0018] like Figure 1 and Figure 2 As shown: a filtering device for cottonseed oil production, including a stirring tank 1 and a filter 2, the model of the filter 2 is NYB-80, a stirring unit 20 for stirring cottonseed oil is arranged in the stirring tank 1, the stirring unit 20 includes a driving motor 41, a stirring shaft 42 and a stirring blade 43, the driving motor 41 is located at the top of the stirring tank 1, one end of the stirring shaft 42 is fixedly connected to the output end of the driving motor 41, the stirring shaft 42 rotates and passes through the stirring tank 1, a plurality of stirring blades 43 are fixedly connected to the stirring shaft 42, an oil inlet pipeline 3 and an oil outlet pipeline 4 are arranged on the stirring tank 1, an oil return pipeline 5 is arranged on the stirring tank 1, one end of the oil outlet pipeline 4 is connected to a pipeline 6, and the other end of the pipeline 6 is connected to an oil pump 7, the model of the oil pump 7 is CPKN C040-200, the other end of the oil pump 1 7 is connected with the pipeline 2 8, the pipeline 1 6 and the pipeline 2 8 are respectively provided with a valve 1 9 and a valve 2 10, the filter 2 is provided with an oil inlet pipeline 2 11, the other end of the pipeline 2 8 is connected with the oil inlet pipeline 2 11, the pipeline 1 6 and the pipeline 2 8 are respectively connected with a branch pipe 1 34 and a branch pipe 2 35, the other end of the branch pipe 1 34 is connected with an oil pump 36, the model of the oil pump 36 is CPKN C 040-200, the other end of the oil pump 36 is connected with the branch pipe 2 35, the branch pipe 1 34 and the branch pipe 2 35 are respectively provided with a valve 9 37 and a valve 10 38.

[0019] The filter 2 is provided with an oil return pipe 2 12, one end of which is connected with a pipe 3 13, the other end of which is connected with an oil pump 2 14, the model of which is CPKN C 040-200, the other end of which is connected with a pipe 4 15, the pipe 3 13 and the pipe 4 15 are respectively provided with a valve 3 16 and a valve 4 17, the pipe 4 15 is connected with the oil return pipe 1 5, the filter 2 is provided with an oil outlet pipe 2 18, the oil outlet pipe 2 18 is provided with a valve 5 19.

[0020] It also includes a steam-water separator 22, an exhaust pipe 21 is provided on the stirring tank 1, a liquid return pipe 23 is provided on the stirring tank 1, one end of the exhaust pipe 21 is connected with a pipe 5 24, the other end of the pipe 5 24 is connected with a vacuum pump 25, the model of the vacuum pump 25 is 2XZ-15B, the other end of the vacuum pump 25 is connected with a pipe 6 26, the pipe 5 24 and the pipe 6 26 are respectively provided with a valve 6 27 and a valve 7 28, an air intake pipe 29 is provided on the steam-water separator 22, the pipe 6 26 is connected with the air intake pipe 29, a liquid outlet pipe 30 is provided on the steam-water separator 22, one end of the liquid outlet pipe 30 is connected with a pipe 7 31, a valve 8 32 is provided on the pipe 7 31, the pipe 7 31 is connected with the liquid return pipe 23, an air outlet pipe 33 is provided on the steam-water separator 22, an observation mirror 1 39 is provided on the pipe 2 8, the pipe 3 13 and the pipe 7 31, and an observation mirror 2 40 is provided on the stirring tank 1.

[0021] The implementation method of this embodiment is:

[0022] When it is necessary to remove gas impurities in the oil body and recover the oil, the oil body enters the mixing tank 1 through the oil inlet pipe 1 3. When the oil volume accumulates to a certain level, open valve 5 27 and valve 6 28, and start the vacuum pump 25 at the same time to discharge the mixed gas of air and oil-containing vapor in the mixing tank 1 into the steam-water separator 22. After being processed by the steam-water separator 22, open valve 7 31, and the oil with gas impurities removed flows back into the mixing tank 1 through the liquid outlet pipe 30, pipe 7 31 and the liquid return pipe 23, and the separated gas impurities leave the steam-water separator 22 through the gas outlet pipe 33.

[0023] When it is necessary to operate the filtering device to filter the cottonseed oil, open valve 19 and valve 2 10, and open oil pump 17 at the same time, and the oil enters the filter 2 through the oil outlet pipe 1 4, pipe 1 6, oil pump 1 7, pipe 2 8 and oil inlet pipe 2 11. After the oil is filtered, open valve 3 16 and valve 4 17, and open oil pump 2 14 at the same time, and the oil enters the mixing tank 1 through the return oil pipe 2 12, pipe 3 13, oil pump 2 14, pipe 4 15 and return oil pipe 1 5. Repeat the above operation until the oil in the mixing tank 1 is filtered. After the oil is filtered, open oil pump 17, and open valve 19 and valve 2 10 at the same time to discharge all the oil in the mixing tank 1 into the filter 2, and then open valve 5 19 to discharge the filtered oil into the next-level edible oil refining device.

[0024] When the oil pump 1 7 needs to be replaced or repaired, close valve 1 9 and valve 2 10, open valve 9 37 and valve 10 38, and start the oil pump 3 36 at the same time to ensure that the filtering operation is carried out normally.

[0025] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A filter device for cottonseed oil production, characterized in that: The invention comprises a mixing tank (1) and a filter (2), wherein the mixing tank (1) is provided with an oil inlet pipeline (3) and an oil outlet pipeline (4), the mixing tank (1) is provided with an oil return pipeline (5), one end of the oil outlet pipeline (4) is connected to a pipeline (6), the other end of the pipeline (6) is connected to an oil pump (7), the other end of the oil pump (7) is connected to a pipeline (8), the pipeline (6) and the pipeline (8) are respectively provided with a valve (9) and a valve (10), the filter (2) is provided with an oil inlet pipeline (11), the other end of the pipeline (8) is connected to the oil inlet pipeline (11), and the filter (2) is provided with an oil return pipeline. The oil return pipe (2) is connected to a pipe (3) (13) at one end, and an oil pump (2) is connected to an oil pump (14) at the other end. The oil pump (14) is connected to a pipe (4) (15) at the other end. The pipe (3) (13) and the pipe (4) (15) are provided with a valve (3) (16) and a valve (4) (17) respectively. The pipe (4) (15) is connected to the oil return pipe (5). The filter (2) is provided with an oil outlet pipe (2) (18), and the oil outlet pipe (2) (18) is provided with a valve (5) (19). A stirring unit (20) for stirring cottonseed oil is provided in the stirring tank (1), and an exhaust pipe (21) is provided on the stirring tank (1).

2. A cottonseed oil production filtering device according to claim 1, characterized in that: The mixing tank (1) further comprises a steam-water separator (22), wherein the mixing tank (1) is provided with a liquid return pipe (23), one end of the exhaust pipe (21) is connected to a pipe five (24), the other end of the pipe five (24) is connected to a vacuum pump (25), the other end of the vacuum pump (25) is connected to a pipe six (26), the pipe five (24) and the pipe six (26) are respectively provided with a valve six (27) and a valve seven (28), the steam-water separator (22) is provided with an air intake pipe (29), the pipe six (26) is connected to the air intake pipe (29), the steam-water separator (22) is provided with a liquid outlet pipe (30), one end of the liquid outlet pipe (30) is connected to a pipe seven (31), the pipe seven (31) is provided with a valve eight (32), the pipe seven (31) is connected to the liquid return pipe (23), and the steam-water separator (22) is provided with an air outlet pipe (33).

3. A cottonseed oil production filtering device according to claim 1, characterized in that The pipeline one (6) and the pipeline two (8) are respectively connected to the branch pipe one (34) and the branch pipe two (35), the other end of the branch pipe one (34) is connected to the oil pump three (36), the other end of the oil pump three (36) is connected to the branch pipe two (35), and the branch pipe one (34) and the branch pipe two (35) are respectively provided with valve nine (37) and valve ten (38).

4. A cottonseed oil production filtering device according to claim 2, characterized in that: The pipeline 2 (8), pipeline 3 (13) and pipeline 7 (31) are all provided with an observation mirror 1 (39), and the stirring tank (1) is provided with an observation mirror 2 (40).

5. A cottonseed oil production filtering device according to claim 1, characterized in that: The stirring unit (20) comprises a driving motor (41), a stirring shaft (42) and stirring blades (43); the driving motor (41) is located at the top of the stirring tank (1); one end of the stirring shaft (42) is fixedly connected to the output end of the driving motor (41); the stirring shaft (42) rotates and passes through the stirring tank (1); and a plurality of stirring blades (43) are fixedly connected to the stirring shaft (42).

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