阅读说明：本技术 基于连续不间断方式净化油炸食品废油的装置及工艺 (Device and process for purifying waste oil of fried food based on continuous uninterrupted mode ) 是由 伍小连 于 2020-06-04 设计创作，主要内容包括：本发明提供了一种基于连续不间断方式净化油炸食品废油的装置及工艺,涉及食用油处理技术领域,该装置包括：壳体,进油管、第一、二出油管,位于壳体的翻转体,以及翻转机构；第一出油管、第二出油管位于壳体内的进油端设置有过滤装置；翻转体内部设有吸油腔,两端分别设有相通的第一吸油口、第二吸油口,第一吸油口、第二吸油口处均设有处于常闭状态的阀门机构；当翻转体动作时,第一吸油口与第一出油管进油端部的过滤装置贴合,且该处的阀门机构打开,或第二吸油口与第二出油管进油端部的过滤装置贴合,且该处的阀门机构打开；吸油腔与外部的负压泵管路相通。对油炸食品使用过后的食用废油进行高效去杂质处理,便于食用废油的回收再利用。(The invention provides a device and a process for purifying waste oil of fried food based on a continuous uninterrupted mode, which relate to the technical field of edible oil treatment, and the device comprises: the oil inlet pipe is arranged on the shell, the first oil outlet pipe and the second oil outlet pipe are arranged on the shell, the turnover body is positioned on the shell, and the turnover mechanism is arranged on the shell; the first oil outlet pipe and the second oil outlet pipe are arranged at the oil inlet end in the shell and are provided with filtering devices; an oil suction cavity is arranged in the turnover body, a first oil suction port and a second oil suction port which are communicated with each other are respectively arranged at the two ends of the turnover body, and valve mechanisms in a normally closed state are respectively arranged at the first oil suction port and the second oil suction port; when the turning body acts, the first oil suction port is attached to the filtering device at the oil inlet end part of the first oil outlet pipe, and the valve mechanism at the position is opened, or the second oil suction port is attached to the filtering device at the oil inlet end part of the second oil outlet pipe, and the valve mechanism at the position is opened; the oil suction cavity is communicated with an external negative pressure pump pipeline. The edible waste oil after the fried food is used is subjected to high-efficiency impurity removal treatment, so that the edible waste oil is convenient to recycle.)

1. A device based on fried food waste oil of continuous incessant mode purification, its characterized in that includes: the oil pump comprises a shell (1), an oil inlet pipe (2), a first oil outlet pipe (3), a second oil outlet pipe (4) which are communicated with the inside of the shell (1), a turnover body (5) which is movably arranged in the shell (1), and a turnover mechanism which is used for driving the turnover body (5) to move;

the first oil outlet pipe (3) and the second oil outlet pipe (4) are provided with a filtering device (6) at the oil inlet end in the shell (1);

an oil suction cavity (51) is arranged in the turnover body (5), a first oil suction port (52) and a second oil suction port (53) which are communicated with each other are respectively arranged at the two ends of the turnover body, and valve mechanisms in a normally-closed state are respectively arranged at the first oil suction port (52) and the second oil suction port (53); when the turnover body (5) acts, the first oil suction port (52) is attached to the filtering device (6) at the oil inlet end part of the first oil outlet pipe (3), and the valve mechanism at the oil inlet end part is opened, or the second oil suction port (53) is attached to the filtering device (6) at the oil inlet end part of the second oil outlet pipe (4), and the valve mechanism at the oil inlet end part is opened; the oil suction cavity (51) is communicated with an external negative pressure pump pipeline.

2. The device for purifying waste fried food oil on the basis of the continuous uninterrupted manner as claimed in claim 1, wherein the valve mechanism comprises a movable plug (54) positioned at the first oil suction port (52) or the second oil suction port (53), the plug (54) is provided with an oil passing channel (55), when the first oil suction port (52) is attached to the filtering device (6) at the oil inlet end of the first oil outlet pipe (3), the plug (54) at the first oil suction port (52) moves under the squeezing action, and the oil suction cavity (51) is communicated with the filtering device (6) through the oil passing channel (55) at the first oil suction port (52); or when the second oil suction opening (53) is jointed with the filtering device (6) at the oil inlet end part of the second oil outlet pipe (4), under the squeezing action, the plug (54) at the second oil suction opening (53) moves, and the oil suction cavity (51) is communicated with the filtering device (6) through the oil passage (55) at the second oil suction opening (53).

3. The apparatus for purifying waste oil from fried foods on a continuous basis according to claim 1, wherein said filter means (6) is a filter net and is provided with a covered edge at its periphery.

4. Device for purifying waste oil from fried food products on a continuous and uninterrupted basis as claimed in claim 1, characterized in that the first oil suction opening (52) is provided at its end with a face seal (56) cooperating with the filter means (6) of the oil inlet end of the first oil outlet pipe (3), and the second oil suction opening (53) is also provided at its end with a face seal (56) cooperating with the filter means (6) of the oil inlet end of the second oil outlet pipe (4).

5. The device for purifying waste fried food oil based on the continuous uninterrupted manner of claim 1, wherein the oil inlet ports of the first oil outlet pipe (3) and the second oil outlet pipe (4) in the shell (1) are symmetrically arranged, and a turnover body (5) capable of deflecting towards the two ports is arranged between the oil inlet ports; the turnover mechanism comprises a rocker (57) and a telescopic rod (58), wherein the rocker (57) and the telescopic rod (58) are positioned on the turnover body (5) and penetrate through the shell (1), the rod part of the rocker (57) is installed on the shell (1) through a rotating shaft, and one end of the rocker (57) is hinged to the telescopic end of the telescopic rod (58).

6. Device for purifying waste fried food oil on a continuous and uninterrupted basis as claimed in claim 5, characterized in that the rocker (57) is provided with a sealing sleeve (7) throughout the casing (1).

7. Device for purifying waste fried food oil on a continuous and uninterrupted basis as claimed in claim 5, characterized in that said rocker (57) is provided with an oil outlet nozzle (59) and internally with a flow channel communicating the oil outlet nozzle (59) with the oil suction chamber (51).

8. Device for purifying waste fried food oil on a continuous and uninterrupted basis as claimed in claim 5, characterized in that a compression spring (60) is provided between two said plugs (54).

9. A process for purifying waste fried food oil based on a continuous uninterrupted manner, which is characterized in that the device for purifying the waste fried food oil based on the continuous uninterrupted manner of any one of claims 1 to 8 is adopted for continuous uninterrupted purification treatment, and comprises the following steps:

s1, preheating and acid treatment: preheating the waste edible oil with solid impurity particles filtered out to 70-80 ℃, pumping the waste edible oil into a reaction tank for heat preservation, and adding edible phosphoric acid accounting for 0.05-0.2% of the oil by weight while stirring to obtain acid treatment mixed oil;

s2, rapidly cooling and condensing impurities: rapidly reducing the acid-treated mixed oil liquid treated by S1 to 30-40 ℃, adding edible-grade alkali liquid with the concentration of 20-25% according to the acid value to be reduced, and reacting for 8-15 min to condense the impurities to form flocculent impurities, thereby obtaining the alkali-treated mixed oil liquid;

s3, continuous and uninterrupted purification treatment: pumping the alkali treatment mixed oil liquid treated by the S2 into an oil inlet pipe, and collecting flocculent impurity bodies when the mixed oil liquid flows through the filtering devices on the first oil outlet pipe and the second oil outlet pipe respectively; meanwhile, when the turnover body is alternatively attached to the filtering devices on the first oil outlet pipe and the second oil outlet pipe, under the action of a negative pressure pump, the flocculent impurities adhered to the filtering devices flow through the first oil suction port and the second oil suction port, the valve mechanism is used for discharging and collecting oil after the oil suction cavity, the edible oil liquid after soap stripping flows out of the first oil outlet pipe and the second oil outlet pipe is pumped into a water washing tank, the temperature is raised to 70-80 ℃, and 0.5% -1% of soft water is added into the edible oil liquid for water washing.

10. The process for purifying waste fry oil on a continuous, uninterrupted basis as claimed in claim 9, wherein the concentration of food grade phosphoric acid in S1 is 85%.

Technical Field

The invention relates to the technical field of edible oil treatment, in particular to a device and a process for purifying waste fried food oil based on a continuous uninterrupted mode.

Background

In the field of fried food processing, such as meat products, bean products and the like, during frying, cooking oil for frying food is continuously heated for hours at high temperature in the environment of coexistence of moisture, air and food residues, and grease undergoes a plurality of chemical reactions, such as: organic pigments produced by oxidation, hydrolysis, thermal decomposition and polymerization, and the like. With the prolonged frying time, the quality of the oil in sense, nutrition and efficacy is remarkably reduced. The acid value and peroxide value of the oil and fat are continuously increased, and finally the quality of the fried food cannot be ensured. Therefore, the waste edible oil needs to be recovered and purified in time, however, the conventional alkali refining method cannot meet the requirement of high standard, and the colloidal substances such as trace metals, trace soap particles, phospholipids and the like in the oil and fat cannot be effectively removed, so that the problem needs to be solved.

Disclosure of Invention

In view of the above, the present invention provides a device for purifying waste oil of fried food based on a continuous and uninterrupted manner, which can perform high-efficiency impurity removal treatment on the used edible waste oil of fried food, and the edible waste oil can be purified more thoroughly, so that the edible waste oil can be recycled and reused conveniently.

To achieve the above objects, in a first aspect, the present invention provides an apparatus for purifying waste oil of fried food based on a continuous uninterrupted manner, comprising: the oil outlet pipe is communicated with the first oil outlet pipe and the second oil outlet pipe;

the first oil outlet pipe and the second oil outlet pipe are provided with filtering devices at the oil inlet ends in the shell;

an oil suction cavity is arranged in the turnover body, a first oil suction port and a second oil suction port which are communicated with each other are respectively arranged at the two ends of the turnover body, and valve mechanisms in a normally closed state are respectively arranged at the first oil suction port and the second oil suction port; when the turning body acts, the first oil suction port is attached to the filtering device at the oil inlet end part of the first oil outlet pipe, and the valve mechanism at the position is opened, or the second oil suction port is attached to the filtering device at the oil inlet end part of the second oil outlet pipe, and the valve mechanism at the position is opened; the oil suction cavity is communicated with an external negative pressure pump pipeline.

Furthermore, the valve mechanism comprises a movable plug positioned at the first oil suction port or the second oil suction port, an oil passing channel is arranged on the plug, when the first oil suction port is attached to the filtering device at the oil inlet end part of the first oil outlet pipe, the plug at the first oil suction port moves under the extrusion action, and the oil suction cavity is communicated with the filtering device through the oil passing channel at the first oil suction port; or when the second oil suction port is attached to the filtering device at the oil inlet end part of the second oil outlet pipe, the plug at the second oil suction port moves under the extrusion action, and the oil suction cavity is communicated with the filtering device through the oil passage at the second oil suction port.

Furthermore, the filtering device is a filter screen, and the periphery of the filtering device is provided with a covered edge.

Furthermore, the end part of the first oil suction port is provided with an end face sealing element matched with the filtering device at the oil inlet end part of the first oil outlet pipe, and the end part of the second oil suction port is also provided with an end face sealing element matched with the filtering device at the oil inlet end part of the second oil outlet pipe.

Furthermore, the oil inlet ports in the shell on the first oil outlet pipe and the second oil outlet pipe are symmetrically arranged, and a turnover body capable of deflecting towards the two ports is arranged between the oil inlet ports; the turnover mechanism comprises a rocker and a telescopic rod, wherein the rocker is positioned on the turnover body and penetrates through the shell to the outside, the rod part of the rocker is arranged on the shell through a rotating shaft, and one end of the rocker, which is positioned on the shell, is hinged with the telescopic end of the telescopic rod.

Furthermore, a sealing sleeve is arranged at the position where the rocker penetrates through the shell.

Furthermore, an oil outlet nozzle is arranged on the rocker, and a flow passage for communicating the oil outlet nozzle with the oil suction cavity is arranged in the rocker.

Furthermore, a compression spring is arranged between the two plugs.

On the other hand, the invention also provides a process for purifying the waste fried food oil based on the continuous and uninterrupted mode, the device for purifying the waste fried food oil based on the continuous and uninterrupted mode is adopted for continuous and uninterrupted purification treatment, and the process comprises the following steps:

s1, preheating and acid treatment: preheating the waste edible oil with solid impurity particles filtered out to 70-80 ℃, pumping the waste edible oil into a reaction tank for heat preservation, and adding edible phosphoric acid accounting for 0.05-0.2% of the oil by weight while stirring to obtain acid treatment mixed oil;

s2, rapidly cooling and condensing impurities: rapidly reducing the acid-treated mixed oil liquid (within 60 min) treated by S1 to 30-40 ℃, adding edible-grade alkali liquid with the concentration of 20-25% according to the acid value to be reduced, and reacting for 8-15 min to condense the impurities to form flocculent impurities to obtain alkali-treated mixed oil liquid; the calculation method of the adding amount of the edible alkali can be that the adding amount of the alkali liquor is equal to the weight of the waste edible oil, the acid value to be reduced is multiplied by 0.713 plus the excess alkali amount (the excess alkali amount is 2-6 per mill of the weight of the waste edible oil, and the adding amount is judged according to the amount of impurities in the waste edible oil).

S3, continuous and uninterrupted purification treatment: pumping the alkali treatment mixed oil liquid treated by the S2 into an oil inlet pipe, and collecting flocculent impurity bodies when the mixed oil liquid flows through the filtering devices on the first oil outlet pipe and the second oil outlet pipe respectively; meanwhile, when the turnover body is alternatively attached to the filtering devices on the first oil outlet pipe and the second oil outlet pipe, under the action of a negative pressure pump, the flocculent impurities adhered to the filtering devices flow through the first oil suction port and the second oil suction port, the valve mechanism is used for discharging and collecting oil after the oil suction cavity, the edible oil liquid after soap stripping flows out of the first oil outlet pipe and the second oil outlet pipe is pumped into a water washing tank, the temperature is raised to 70-80 ℃, and 0.5% -1% of soft water is added into the edible oil liquid for water washing.

Further, the concentration of food grade phosphoric acid in the S1 was 85%.

Compared with the prior art, the invention has the beneficial effects that: the edible waste oil after the fried food is used is subjected to high-efficiency impurity removal treatment, so that the purification is thorough, the edible waste oil is convenient to recycle, and the safety of the fried food is ensured.

1. When the turnover body is not in extrusion fit with the filtering device, the valve mechanism is in a closed state to prevent oil from entering the oil suction cavity, when the turnover body is in extrusion fit with the filtering device at one oil outlet pipe, the valve mechanism at the position is opened to remove and treat the bulk particles on the filtering device at the end, and the filtering device at the other oil outlet pipe is subjected to filtering treatment, so that mutual interference is avoided alternately.

2. In the process for purifying the waste oil of fried food based on the continuous uninterrupted mode, the waste edible oil is preheated in the first step, and then edible-grade phosphoric acid is added to play roles in hydrating and removing calcium, magnesium and phospholipid compounds, so that the residual soap content and the phospholipid content in the subsequent treatment process are effectively reduced; secondly, after the mixed solution is rapidly cooled, alkali liquor is added simultaneously to be in full contact with and react with free fatty acid, so that colloid forms larger floccules, the filtering and separation in the next step are facilitated, and the rapid cooling can also greatly reduce the saponification probability of neutral oil, so that the refining consumption is lower, the refining yield is higher, the quality is better, the color is light and the like; and thirdly, the device for purifying the waste oil of the fried food based on the continuous and uninterrupted mode is used for alternately removing the flocculent impurity bodies, so that the problem of no pipe blockage is solved, and the efficient edible oil purification treatment effect is ensured.

Drawings

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B according to the present invention;

FIG. 4 is a schematic side view of the structure of FIG. 1 according to the present invention.

In the figure: 1. a housing; 2. an oil inlet pipe; 3. a first oil outlet pipe; 4. a second oil outlet pipe; 5. turning over the body; 51. an oil suction cavity; 52. a first oil suction port; 53. a second oil suction port; 54. a plug; 55. an oil passing channel; 56. an end face seal; 57. a rocker; 58. a telescopic rod; 59. an oil outlet nozzle; 60. a compression spring; 6. a filtration device; 7. and (5) sealing the sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.