Low-temperature deacidification device for kitchen waste grease

Abstract

The utility model relates to a low-temperature deacidification device for kitchen waste grease, and belongs to the field of grease chemical biodiesel. The low-temperature deacidification device for the kitchen waste grease comprises a mixing container, a stirring device and a cooling device, wherein the mixing container is provided with a cylindrical discharge pipe for discharging waste water; the stirring piece is mounted on the mixing container; the filtering part is mounted at the bottom of the mixing container corresponding to the inlet of the discharging pipe and is used for preventing impurities from entering the discharging pipe; and the plate scraping piece is rotationally mounted on the filtering piece and is used for stirring impurities deposited on the surface of the filtering piece. The filtering piece is arranged at the bottom end of the mixing container to prevent solid impurities and solid grease in wastewater from entering the discharging pipe so as to reduce the occurrence of blockage in the discharging pipe, the plate scraping piece is arranged on the filtering piece, and the plate scraping piece rotates on the surface of the filtering piece to stir the solid impurities deposited on the surface of the filtering piece so as to prevent the solid impurities from entering the discharging pipe. Therefore, the waste water can be ensured to smoothly flow into the discharge pipe to be discharged.

Description

Technical Field

[0001] The utility model relates to the field of oil chemical biodiesel, in particular to a low-temperature acid reduction device for waste kitchen oil. Background Art

[0002] Waste oil is one of the important raw materials for current biodiesel companies. Since it contains a large amount of free fatty acids, it cannot meet the requirements of transesterification to produce biodiesel. Therefore, it needs to be treated with acid reduction and then catalyzed by alkaline catalyst to produce biodiesel through transesterification.

[0003] During the low-temperature deacidification treatment of waste oil and fat, the waste oil residue will react with the deacidifier to generate wastewater containing the deacidifier. The wastewater is generally discharged through the discharge pipe at the bottom, and the solid sediment contained in the wastewater will accumulate at the discharge port and cause blockage of the discharge pipe. Utility Model Content

[0004] Based on this, it is necessary to provide a low-temperature deacidification device for waste cooking oil that can reduce the blockage of the discharge pipe in order to solve the above-mentioned technical problems.

[0005] The utility model provides a low-temperature acid reduction device for waste kitchen oil, comprising:

[0006] a mixing vessel having a cylindrical discharge pipe for discharging wastewater;

[0007] A stirring member, mounted on the mixing container;

[0008] A filter element is installed at the bottom of the mixing container at a position corresponding to the inlet of the discharge pipe, and is used to prevent impurities from entering the discharge pipe;

[0009] A scraper, rotatably mounted on the filter element, is used to stir impurities deposited on the surface of the filter element;

[0010] Wherein, the top end of the scraper is connected to the bottom end of the rotating shaft of the stirring member.

[0011] In one embodiment, the scraper member includes a driven rod and a scraper blade, the top end of the driven rod is mounted on the bottom end of the rotating shaft of the stirring member, and the scraper blade is mounted on the driven rod and located on the surface of the filter member.

[0012] In one of the embodiments, the top end of the driven rod is snap-fitted and mounted on the bottom end of the rotating shaft of the stirring member.

[0013] In one of the embodiments, a drain pipe is installed through the inner wall of the mixing container corresponding to the scraper blade, and the drain pipe is used to discharge solid impurities on the filter element.

[0014] In one of the embodiments, a sealing cover is detachably mounted on the outer end of the sewage pipe.

[0015] In one of the embodiments, the bottom end of the driven rod passes through the filter element and extends into the discharge pipe. The driven rod is mounted on the filter element via a bearing structure, and the axes of the driven rod and the discharge pipe coincide.

[0016] In one of the embodiments, the low-temperature deacidification device for waste cooking oil also includes a wall scraping auger, which is installed at the bottom end of the driven rod and rotates along the inner wall of the discharge pipe with the axis of the driven rod as the center of the circle.

[0017] In one embodiment, the wall scraping auger includes an auger blade and a side scraping blade. The side scraping blade is installed on the surface of the auger blade adjacent to the inner wall of the discharge pipe along the axial direction of the discharge pipe. The side scraping blade is used to scrape away impurities attached to the inner wall of the discharge pipe.

[0018] The above-mentioned low-temperature deacidification device for waste cooking oil, by arranging a filter element at the bottom end of the mixing container, intercepts solid impurities and solid grease in the wastewater from entering the discharge pipe, so as to prevent the solid impurities from accumulating at the discharge pipe opening, thereby reducing the occurrence of blockage of the discharge pipe. In combination with a plate scraper arranged on the filter element, the plate scraper is used to rotate on the surface of the filter element to stir the solid impurities deposited on the surface of the filter element to prevent them from accumulating in the through holes of the filter element, thereby ensuring that the wastewater can be smoothly filtered by the filter element and flow into the discharge pipe for discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A cross-sectional view of a low-temperature acid reduction device for waste cooking oil according to an embodiment;

[0021] Figure 2 for Figure 1 A magnified view of the part A in the middle;

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the middle filter element, scraper element, driven rod, scraper blade and wall scraper auger.

[0023] Reference numerals:

[0024] 100, mixing container; 110, discharge pipe; 120, sewage pipe; 121, sealing element; 200, stirring element; 300, filtering element; 400, scraper element; 410, driven rod; 420, scraper blade; 500, wall scraping auger; 510, auger blade; 520, side scraping blade. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the utility model are for illustrative purposes only and do not represent the only implementation method.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in the specification of the present utility model have the same meaning as those commonly understood by technicians in the technical field of the present utility model. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used in the specification of the present utility model includes any and all combinations of one or more related listed items.

[0030] Combine the following Figure 1-Figure 3 The utility model describes a low-temperature acid reduction device for waste kitchen grease.

[0031] like Figure 1 As shown, in one embodiment, a low-temperature deacidification device for waste cooking oil includes a mixing container 100, a stirring element 200, a filtering element 300 and a scraping element 400.

[0032] The mixing container 100 has a cylindrical discharge pipe 110 for discharging waste water. Preferably, the mixing container 100 is a cylindrical cavity, and the discharge pipe 110 is disposed through the bottom end of the mixing container 100 .

[0033] The stirring member 200 is installed on the mixing container 100 and is used to stir the reactants in the mixing container 100 to accelerate the acid reduction reaction rate.

[0034] The filter element 300 is installed at a position corresponding to the inlet of the discharge pipe 110 at the bottom of the mixing container 100 to prevent impurities from entering the discharge pipe 110. Preferably, the filter element 300 is a filter plate, which matches the cavity shape of the mixing container 100, thereby effectively intercepting solid impurities or solid grease from reaching the inlet of the discharge pipe 110.

[0035] The scraper 400 is rotatably mounted on the filter element 300 to stir impurities deposited on the surface of the filter element 300. The scraper 400 rotates in contact with the surface of the filter element 300 to further scrape off grease attached to the surface of the filter element 300.

[0036] The top end of the scraper 400 is connected to the bottom end of the rotating shaft of the stirring member 200 , and the stirring member 200 is used to drive the scraper 400 to rotate synchronously, thereby realizing that the scraper 400 rotates to stir the impurities deposited on the surface of the filter 300 .

[0037] Specifically, during the low-temperature deacidification reaction of waste oil, the waste water generated is discharged through the discharge pipe 110, and the solid impurities or solid oil contained in the waste water are intercepted by the filter element 300 to reduce the amount of solid impurities or solid oil flowing into the discharge pipe 110, thereby reducing the blockage of the discharge pipe 110. The scraper 400 is driven by the stirring element 200 to rotate synchronously, stirring the impurities or solid oil intercepted by the filter element 300 to reduce the clogging of the through holes of the filter element 300 due to excessive impurities and solid oil deposition, thereby ensuring that the waste water can smoothly pass through the filter element 300 and flow into the discharge pipe 110.

[0038] The low-temperature deacidification device for waste cooking oil in this embodiment is configured by arranging a filter element 300 at the bottom end of a mixing container 100. The filter element 300 is correspondingly arranged above a discharge pipe 110, and the filter element 300 matches the cavity shape of the mixing container 100, thereby effectively intercepting solid impurities and solid grease in wastewater from entering the discharge pipe 110, so as to prevent solid impurities from accumulating at the mouth of the discharge pipe 110, thereby reducing the occurrence of blockage of the discharge pipe 110. A scraper element 400 is arranged on the filter element 300, and the scraper element 400 is driven by a stirring element 200 to rotate on the surface of the filter element 300. The rotating scraper element 400 stirs the solid impurities deposited on the surface of the filter element 300 to prevent them from accumulating at the through holes of the filter element 300, thereby ensuring that the wastewater is smoothly filtered by the filter element 300 and flows into the discharge pipe 110 for discharge.

[0039] like Figure 2 As shown, in one embodiment, the scraper 400 includes a driven rod 410 and a scraper blade 420. The top end of the driven rod 410 is installed at the bottom end of the rotating shaft of the stirring member 200. The scraper blade 420 is installed on the driven rod 410 and is located on the surface of the filter element 300. The scraper blade 420 rotates along the top of the filter element 300 with the axis of the driven rod 410 as the center of the circle. During the rotation, the solidified grease on the top of the filter element 300 is scraped off, and the grease scraped off from the filter element 300 is broken up under the stirring of the scraper blade 420.

[0040] In order to facilitate the disassembly and cleaning of the mixing container 100, the top end of the driven rod 410 is snap-fitted and installed on the bottom end of the rotating shaft of the stirring member 200. Optionally, magnetic blocks with opposite magnetic poles are installed on the top end of the driven rod 410 and the bottom end of the rotating shaft of the stirring member 200 to facilitate the rapid snap-fitting and installation of the stirring member 200 onto the top end of the driven rod 410.

[0041] In this embodiment, a sewage pipe 120 is installed through the inner wall of the mixing container 100 corresponding to the scraping blade 420 (see Figure 1), the drain pipe 120 is used to discharge the solid impurities on the filter element 300. When clearing the solid impurities on the surface of the filter element 300, firstly, after the waste water in the mixing container 100 is completely discharged, a suction device is connected to the outlet of the drain pipe 120, and the suction device is started to clear the solid impurities and solid grease accumulated on the top of the filter element 300.

[0042] It should be noted that the suction device is a suction pump or other components with a suction function.

[0043] The outer end of the sewage pipe 120 is detachably mounted with a sealing cap 121 (see Figure 1 ), when the drain pipe 120 is idle, the sealing cover 121 is installed on the drain pipe 120 to seal the drain pipe 120. Preferably, the concave surface of the sealing cover 121 has an extension portion that can extend into the drain pipe 120. During the low-temperature acid reduction reaction, when the sealing cover 121 seals the drain pipe 120, the extension portion occupies the pipe space in the drain pipe 120 to reduce the amount of wastewater entering the drain pipe 120.

[0044] During the low-temperature acid reduction reaction of waste oil, incompletely converted semi-solid or liquid oil may be discharged into the discharge pipe 110 along with the wastewater passing through the through holes on the filter element 300. During this process, some oil may remain and solidify on the inner wall of the discharge pipe 110, which may easily cause blockage inside the discharge pipe 110.

[0045] like Figure 3 As shown, in one embodiment, the bottom end of the driven rod 410 passes through the filter element 300 and extends into the discharge pipe 110 . The driven rod 410 is installed on the filter element 300 through a bearing structure, and the axis of the driven rod 410 coincides with the axis of the discharge pipe 110 .

[0046] The low-temperature deacidification device for waste cooking oil also includes a wall scraping auger 500, which is installed at the bottom end of the driven rod 410 and rotates along the inner wall of the discharge pipe 110 with the axis of the driven rod 410 as the center of the circle.

[0047] The wall scraping auger 500 includes an auger blade 510 and a side scraping blade 520 . The side scraping blade 520 is installed on the surface of the auger blade 510 adjacent to the inner wall of the discharge pipe 110 along the axial direction of the discharge pipe 110 . The side scraping blade 520 is used to scrape away impurities attached to the inner wall of the discharge pipe 110 .

[0048] Specifically, the driven rod 410 drives the auger blade 510 and the side scraper blade 520 to rotate synchronously. The auger blade 510 stirs the wastewater and grease entering the discharge pipe 110 to reduce the solidification rate of the grease in the discharge pipe 110. At the same time, the side scraper blade 520 scrapes off the solid grease and impurities attached to the inner wall of the discharge pipe 110, thereby further reducing the blockage of the discharge pipe 110.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A low-temperature deacidification device for waste cooking oil, characterized in that: include: a mixing vessel having a cylindrical discharge pipe for discharging wastewater; A stirring member, mounted on the mixing container; A filter element is installed at the bottom of the mixing container at a position corresponding to the inlet of the discharge pipe, and is used to prevent impurities from entering the discharge pipe; A scraper, rotatably mounted on the filter element, is used to stir impurities deposited on the surface of the filter element; Wherein, the top end of the scraper is connected to the bottom end of the rotating shaft of the stirring member.

2. The low-temperature acid reduction device for waste cooking oil according to claim 1, characterized in that: The scraper comprises a driven rod and a scraper blade, the top end of the driven rod is mounted on the bottom end of the rotating shaft of the stirring member, and the scraper blade is mounted on the driven rod and located on the surface of the filter member.

3. The low-temperature acid reduction device for waste cooking oil according to claim 2, characterized in that: The top end of the driven rod is clamped and installed on the bottom end of the rotating shaft of the stirring member.

4. The low-temperature acid reduction device for waste cooking oil according to claim 3, characterized in that: A sewage pipe is installed through the inner wall of the mixing container corresponding to the scraper blade, and the sewage pipe is used to discharge solid impurities on the filter element.

5. The low-temperature acid reduction device for waste cooking oil according to claim 4, characterized in that: A sealing cover is detachably mounted on the outer end of the sewage pipe.

6. The low-temperature acid reduction device for waste cooking oil according to claim 2 or 3, characterized in that: The bottom end of the driven rod passes through the filter element and extends into the discharge pipe. The driven rod is installed on the filter element through a bearing structure, and the axis of the driven rod coincides with the axis of the discharge pipe.

7. The low-temperature acid reduction device for waste cooking oil according to claim 6, characterized in that: The low-temperature deacidification device for waste cooking oil also includes a wall scraping auger, which is installed at the bottom end of the driven rod and rotates along the inner wall of the discharge pipe with the axis of the driven rod as the center of the circle.

8. The low-temperature acid reduction device for waste cooking oil according to claim 7, characterized in that: The wall scraping auger comprises an auger blade and a side scraping blade. The side scraping blade is installed on the surface of the auger blade adjacent to the inner wall of the discharge pipe along the axial direction of the discharge pipe. The side scraping blade is used to scrape away impurities attached to the inner wall of the discharge pipe.

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