A continuous animal fat steam heat transfer refining device

Abstract

The invention discloses a continuous animal fat steam heat transfer refining device, comprising an outer cylinder, an inner cylinder and a stirring mechanism, wherein a transmission end rotating shaft and a steam end transmission shaft are arranged at both ends of the inner cylinder; the steam end transmission shaft is a hollow structure and is connected with the inner cylinder; when working, the material flows left and right between the outer cylinder and the inner cylinder, the steam enters the inner cylinder and the stirring mechanism in sequence along the steam end transmission shaft, the condensed return water enters the inner cylinder from the stirring mechanism and is discharged along the steam end transmission shaft, the transmission end rotating shaft drives the inner cylinder and the steam end transmission shaft to rotate and drives the stirring mechanism to radially stir the material; the refining device adopts a multi-layer cylinder structure, the stirring mechanism has both stirring and heat transfer functions, the material is refined through the interlayer, continuous refining can be achieved, the production efficiency is high, and the industrial promotion of the continuous refining process is realized.

Description

Technical Field

[0001] The invention relates to the technical field of oil refining equipment, in particular to a continuous animal oil steam heat transfer refining device. Background Art

[0002] Animal fats are popular for their unique aroma and are irreplaceable by other vegetable oils. They are widely used in the food processing industry. However, in the prior art, in the process of refining animal fats, they are firstly refined by a crude refining device and then further processed, that is, an intermittent operation method is adopted, which is inefficient and has low energy utilization.

[0003] Steam is a common heating medium for industrial heat transfer. It is widely used because of its low price and easy temperature control. At present, steam heating is mostly intermittent in the field of animal fat refining equipment, such as Chinese patent document CN212800273U, which is provided with a refining tank with a top opening, a double-layer structure, a cavity formed between the double-layer structure, a steam pipeline in the cavity, and a stirring device in the refining tank. The stirring device includes a stirring shaft and a stirring paddle, the stirring shaft is rotatably connected to the refining tank, the stirring paddle is fixedly connected to the stirring shaft, and the stirring shaft is connected to a driving component for driving it to rotate. The purpose is to improve the uniformity of heating of the oil and fat, so that the oil and fat can be fully refined. However, the more traditional refining tanks are still used, which have low production capacity and efficiency, low energy utilization, complex equipment structure, and difficult to control product quality, which limits their application in industry.

[0004] Therefore, it is necessary to propose a continuous animal fat refining device utilizing steam heat transfer. Summary of the invention

[0005] The purpose of the present invention is to provide a continuous animal fat steam heat transfer refining device to solve the defects of the intermittent refining device in the prior art, such as low efficiency, low energy utilization, complex device structure, poor production stability, etc.

[0006] To achieve the above object, the scheme of the present invention is as follows:

[0007] A continuous animal fat steam heat transfer refining device comprises an outer cylinder and an inner cylinder arranged coaxially, a stirring mechanism arranged between the outer cylinder and the inner cylinder and connected to the inner cylinder, and a transmission end rotating shaft and a steam end transmission shaft respectively arranged at both ends of the inner cylinder; the steam end transmission shaft is a hollow structure, provided with a coaxial steam channel and a return water channel and respectively connected to the inner cylinder; when working, the material flows left and right between the outer cylinder and the inner cylinder, the steam enters the inner cylinder and the stirring mechanism in turn along the steam channel, the condensed return water enters the inner cylinder from the stirring mechanism and is discharged along the return water channel, the transmission end rotating shaft drives the inner cylinder and the steam end transmission shaft to rotate and drives the stirring mechanism to radially stir the material.

[0008] In the present invention, the stirring mechanism includes a plurality of planetary tubes surrounding the inner cylinder and communicating with the inner cylinder.

[0009] Furthermore, the steam channel includes a central steam pipe arranged inside the inner cylinder, and a planetary steam conduit arranged between the planetary tubes and the central steam pipe; the return water channel includes a planetary return water pipe connected between the planetary tubes and the inner cylinder; when working, steam enters the central steam pipe along the steam end transmission shaft, and the condensed return water is collected between the central steam pipe and the inner cylinder.

[0010] Furthermore, the central steam pipe is fixed to the inner wall of the inner cylinder through a plurality of pipe liners, and the condensed return water passes through the pipe liners and is collected to the steam end transmission shaft.

[0011] Furthermore, the inner cylinder is provided with a water roller, which is located between the steam end drive shaft and the adjacent pipe liner; the steam end drive shaft is provided with a connected double-layer joint, and the inner layer of the double-layer joint is connected to the axis of the water roller; when working, the steam enters the inner cylinder along the interlayer of the condensation double-layer joint, and passes through the water roller into the central steam pipe, and the condensed return water is collected to the axis through the water roller and discharged along the inner layer of the double-layer joint.

[0012] Furthermore, the planetary steam conduit extends to the axis of the planetary tube; one end of the planetary return pipe is connected to the tube wall of the planetary tube, and the other end is connected to between the central steam pipe and the planetary tube.

[0013] Furthermore, the planetary tube is provided with a propulsion scraper and an axial scraper.

[0014] Furthermore, the planetary tube is fixed to the outer wall of the inner cylinder through a planetary tube support plate.

[0015] In the present invention, the top of the outer cylinder is provided with an exhaust gas outlet communicated with the inner cylinder.

[0016] In the present invention, the outer cylinder body is respectively provided with an outer cylinder steam inlet and an outer cylinder water return port.

[0017] In the present invention, the transmission end rotating shaft and the steam end transmission shaft are sealed with the outer cylinder through flanges respectively.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The steam heat transfer refining device of the present invention adopts a multi-layer cylinder structure, and the stirring shaft has both stirring and heat transfer functions. The material is refined through the interlayer, which can achieve continuous refining and high production efficiency.

[0020] 2. The present invention adopts the combination of planetary tube and scraper to improve the stirring efficiency while providing steam heat transfer; in addition, the ingenious design of steam air inlet and water return port at the shaft end simplifies the device structure without affecting the operation of the stirring shaft.

[0021] 3. The present invention cleverly separates the steam inlet channel from the condensation return water channel, and discharges the return water in the cavity axially through a water roller, thus solving the difficult problems of heat transfer and return water channel design during axial stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the cross-sectional structure of the refining equipment described in the present invention.

[0024] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram.

[0025] Figure 3 It is a schematic diagram of the overall structure of the stirring mechanism of the refining equipment of the present invention.

[0026] Figure 4 It is the right side view of the stirring mechanism of the present invention.

[0027] Figure 5 It is a cross-sectional schematic diagram of the water roller of the present invention.

[0028] Among them, 1. outer cylinder; 2. inner cylinder; 3. transmission end rotating shaft; 4. steam end transmission shaft; 11. exhaust gas outlet; 12. outer cylinder steam inlet; 13. outer cylinder return water outlet; 21. planetary tube; 22. planetary steam duct; 23. planetary return water pipe; 24. pipe lining; 25. planetary tube support plate; 201. central steam pipe; 202. water reel; 203. double-layer joint; 211. push scraper; 212. axial scraper; 2021. water guide pipe; 2022. central water collecting pipe; 2023. water reel; 2301. return water outlet; 2302. steam inlet; 31. transmission end flange; 41. steam end flange. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and beneficial technical effect of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, not for limiting the present invention.

[0030] It should be understood that the orientations or positional relationships indicated by terms such as “upper”, “lower”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be determined according to the specific circumstances.

[0032] like Figure 1-5 As shown, the present invention proposes a continuous animal fat steam heat transfer refining device, comprising an inner cylinder 2, an outer cylinder 1 sleeved outside the inner cylinder 2, the left and right ends of the inner cylinder 2 are respectively connected to the transmission end rotating shaft 3 and the steam end transmission shaft 4, and the left and right ends of the outer cylinder 1 are respectively connected to the transmission end flange 31 and the steam end flange 41; the transmission end rotating shaft 4 is connected to the external driving mechanism, and the steam end transmission shaft 4 is installed on the base through a bearing. Among them:

[0033] The outer cylinder 1 is provided with a jacket, a plurality of outer cylinder steam inlets 12 are provided at the top, a plurality of outer cylinder water return ports 13 are provided at the bottom, and a plurality of exhaust gas outlets 11 connected to the outside atmosphere are provided between the outer cylinder 1 and the inner cylinder 2. In the present invention, the interlayer between the outer cylinder 1 and the inner cylinder 2 is used as the working area for heating and refining oil and fat, and is provided with material inlets and outlets (not shown in the figure), which can be respectively provided on the flanges at the left and right ends according to the design requirements.

[0034] like Figure 1 , 3As shown in Figures 4 and 5, a central steam pipe 201 is provided inside the inner cylinder 2, and a number of planetary pipes 21 with a common axis are distributed in an annular manner outside. The central steam pipe 201 is supported on the inner wall of the inner cylinder 2 through a pipe liner 24. A number of planetary steam conduits 22 are radially provided on the central steam pipe 201, and the planetary steam conduits 22 pass through the inner cylinder 2 and are connected to the planetary pipes 21; a number of planetary water return pipes 23 are also radially provided on the planetary pipes 21, and the planetary water return pipes 23 pass through the inner cylinder 2 and enter the jacket between the inner cylinder 2 and the central steam pipe 201. Furthermore, one end of the planetary water return pipe 23 is connected to the axis of the inner cylinder 2, and the other end is connected to the pipe wall of the planetary pipe 21 (the end of the planetary water return pipe 23 is tangent to the pipe wall of the planetary pipe 21), and the planetary steam conduit 22 is connected to the axis of the planetary pipe 21 to prevent the condensed water from flowing back or overflowing into the planetary steam conduit 22. A plurality of propulsion scrapers 211 and axial scrapers 212 are fixed to the outer wall of the planetary steam duct 22; the propulsion scrapers 211 are arranged at both ends, and the left end is arranged at an acute angle to the center line, and the axial scrapers 212 are arranged parallel to the center line. The axial scrapers 212 stir the material radially when the planetary steam duct 22 rotates, and the propulsion scrapers 211 are used to stir and push the material to the right end. Preferably, adjacent axial scrapers 212 are distributed at 90 degrees radially with the inner cylinder 2, and the axial parts overlap to improve the stirring quality; the propulsion scraper 211 can be designed as a variety of paddle structures according to needs. Figure 3-4 As shown, the planetary tube 21 can be designed as a multi-layer structure arranged around the inner cylinder 2, and a planetary steam conduit 22 and a planetary return water pipe 23 are also arranged between the lower layer and the upper layer. The distribution radius of the upper layer is smaller than the inner diameter of the outer cylinder 1, and the planetary tube 21 is fixed to the outer wall of the inner cylinder 2 through a plurality of planetary tube support plates 25.

[0035] In the present invention, the central steam pipe 201, the inner cylinder 2, the outer cylinder 1, the transmission end rotating shaft 3 and the steam end transmission shaft 4 are all along the axial common center line, the planetary tube 21 is a closed structure, the inner cylinder 2 and the left end of the central steam pipe 201 are closed, the right end of the central steam pipe 201 is open and extends into the steam end transmission shaft 4 and is fixed to the inner wall of the inner cylinder 2 through the pipe liner 24; the pipe liner 24 is a plum blossom type, the inner ring is closed with the central steam pipe 201, and a gap is formed between the outer ring and the inner wall of the inner cylinder 2, so that the interlayer between the central steam pipe 201 and the inner cylinder 2 is axially connected to form a return water channel, that is, the steam return water condensed in the planetary tube 21 enters the interlayer along the planetary return water pipe 23 and is collected. The steam end transmission shaft 4 is a hollow structure, and the inner diameter matches the inner cylinder 2. When working, steam enters the planetary tube 21 through the central steam pipe 201, and the return water enters the interlayer of the steam end transmission shaft 4 and is discharged. As another option of the present invention, similarly, steam can enter the interlayer between the inner cylinder 2 and the inner central pipeline along the interlayer channel of the steam end transmission shaft 4 and enter the planetary tube 21. At the same time, return water can be collected by the planetary tube 21 to the inner cylinder 2 and the inner central pipeline and discharged out of the tube through the steam end transmission shaft 4.

[0036] As the preferred embodiment of the present invention, Figure 1-2 As shown, a water roller 202 is provided between the right end of the central steam pipe 201 and the steam end transmission shaft 4. Figure 5 As shown, the water roll 202 includes a central water collecting pipe 2022 coaxial with the central steam pipe 201, a water roll ring 2023 sleeved outside the central water collecting pipe 2022, and a water guide pipe 2021 perpendicular to the central water collecting pipe 2022 and connected thereto; the water roll ring 2023 is provided with a central ring 20231 located in the center and radially closed, the inner ring free end of the water roll ring 2023 is welded to the central ring 20231, and the outer ring free end is welded to the inner wall of the inner cylinder 2, the water guide pipe 2021 is connected between the central ring 20231 and the central water collecting pipe 2022, when the water roll ring 2023 rotates, the steam condensation return water flows along the water roll ring 2023 toward the center and passes through the central ring 20231 along the water guide pipe 2021 and enters the central water collecting pipe 2022. The axial left end of the water roll ring 2023 is fixed on the pipe liner 24, and the right end is fixed on the left end face of the steam end transmission shaft 4. Furthermore, the steam end transmission shaft 4 is a hollow structure, and its inner diameter is smaller than the radius of the center ring 20231. The inner diameter of the center steam pipe 201 is also smaller than the radius of the center ring 20231. When the steam is drawn to the left from the steam end transmission shaft 4, it passes through the center ring 20231 and enters the center steam pipe 201, and then the steam enters the planetary pipe 21 along the planetary steam duct 22.

[0037] Furthermore, the right end of the steam end transmission shaft 4 is provided with a double-layer joint 203 which is sleeved and connected thereto, the inner layer of the double-layer joint 203 is provided with a return water outlet 2301, the interlayer is provided with a steam inlet 2302, the inner layer is connected to the central water collecting pipe 2022, and the outer layer is threadedly connected to the steam end transmission shaft 4. The double-layer joint 203, steam enters the device from the steam inlet 2302 to the left, and the steam condensed return water is collected from the central water collecting pipe 2022 and then discharged from the return water outlet 2301. The double-layer joint 203 is fixed on the base below, and when the steam end transmission shaft 4 rotates, the double-layer joint 203 is kept stationary by sleeved with the inner and outer layers of the steam end transmission shaft 4.

[0038] The working process and principle of the refining device provided by the present invention are described below with reference to preferred embodiments and accompanying drawings:

[0039] like Figure 1-5As shown, when working, animal fat enters the interlayer between the outer cylinder 1 and the inner cylinder 2, and the steam passes through the interlayer of the double-layer joint 203 and the center ring 20231 to the left along the steam inlet 2302, and then enters the central steam pipe 201, and then enters the planetary pipe 21 through the distributed planetary steam conduits 22; at the same time, the steam also enters the outer cylinder 1 from the outer cylinder steam inlet 12. The start-up drive device drives the left end transmission end rotating shaft 3 to rotate clockwise, thereby driving the inner cylinder 2 and the steam end transmission shaft 4 to rotate. Since the double-layer joint 203 is sleeved on the steam end transmission shaft 4, it will not rotate itself, and will not affect the stability of the internal steam or water axial inlet and outlet channels; the outer cylinder 1 and the inner cylinder 2 exchange heat with the fat through the pipe wall, and the planetary pipe 21 stirs the fat when it rotates, and the propulsion scraper 211 and the axial scraper 212 stir synchronously, and the propulsion scraper 211 gradually pushes the fat to the right end. The condensed return water generated after the steam heat exchange in the planetary tube 21 enters the interlayer between the inner cylinder 2 and the central steam pipe 201 along the radially distributed planetary return pipes 23, and flows through the pipe liner 24 to the right end of the inner cylinder 2. The water roller 202 rotates clockwise when driven by the left end ( Figure 5 ), the condensed return water will remain at the bottom of the tube due to its own gravity, so it will gather inward along the track of the inward water coil 2023 and flow into the water guide pipe 2021 and the central water collecting pipe 2022, and finally be discharged from the inner tube of the double-layer joint 203 at the right end and from the return water outlet 2301. At the same time, the condensed return water generated in the outer cylinder 1 is discharged along the outer cylinder return water outlet 13 set at the bottom. In the above refining process, animal fats are converted into liquid oil phase and partially suspended oil residues, and the waste gas generated in the refining process flows upward and is discharged through the waste gas outlet 11.

[0040] The present invention is not limited to what is described in the specification and implementation modes, and therefore additional advantages and modifications can be easily realized by those skilled in the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. A continuous animal fat steam heat transfer refining device, characterized in that: The invention comprises an outer cylinder (1) and an inner cylinder (2) which are coaxially arranged, a stirring mechanism which is arranged between the outer cylinder (1) and the inner cylinder (2) and is connected to the inner cylinder (2), and a transmission end rotating shaft (3) and a steam end transmission shaft (4) which are respectively arranged at two ends of the inner cylinder (2); the steam end transmission shaft (4) is a hollow structure, provided with a coaxial steam channel and a return water channel and respectively connected to the inner cylinder (2); when in operation, the material flows left and right between the outer cylinder (1) and the inner cylinder (2), the steam enters the inner cylinder (2) and the stirring mechanism in sequence along the steam channel, the condensed return water enters the inner cylinder (2) from the stirring mechanism and is discharged along the return water channel, the transmission end rotating shaft (3) drives the inner cylinder (2) and the steam end transmission shaft (4) to rotate and drives the stirring mechanism to stir the material radially; The stirring mechanism comprises a plurality of planetary tubes (21) surrounding the inner cylinder (2) and communicating with the inner cylinder (2); The steam channel comprises a central steam pipe (201) arranged inside the inner cylinder (2), and a planetary steam conduit (22) arranged between the planetary pipes (21) and the central steam pipe (201); The water return channel comprises a planetary water return pipe (23) connected between the planetary pipe (21) and the inner cylinder (2); during operation, steam enters the central steam pipe (201) along the steam end transmission shaft (4), and condensed water return is collected between the central steam pipe (201) and the inner cylinder (2).

2. The refining device according to claim 1, characterized in that: The central steam pipe (201) is fixed to the inner wall of the inner cylinder (2) via a plurality of pipe liners (24), and condensed return water passes through the pipe liners (24) and is collected toward the steam end transmission shaft (4).

3. The refining device according to claim 2, characterized in that: The inner cylinder (2) is provided with a water roller (202) located between the steam end transmission shaft (4) and the adjacent pipe liner (24); the steam end transmission shaft (4) is provided with a communicating double-layer joint (203), the inner layer of the double-layer joint (203) being communicated with the axis of the water roller (202); during operation, steam enters the inner cylinder (2) along the interlayer of the condensing double-layer joint (203), passes through the water roller (202) and enters the central steam pipe (201), and condensed return water is collected to the axis through the water roller (202) and discharged along the inner layer of the double-layer joint (203).

4. The refining device according to claim 1, characterized in that: The planetary steam conduit (22) extends to the axis of the planetary tube (21); one end of the planetary water return pipe (23) is connected to the tube wall of the planetary tube (21), and the other end is connected to between the central steam pipe (201) and the planetary tube (21).

5. The refining device according to claim 1, characterized in that: The planetary tube (21) is provided with a propulsion scraper (211) and an axial scraper (212).

6. The refining device according to claim 1, characterized in that: The planetary tube (21) is fixed to the outer wall of the inner cylinder (2) via a planetary tube support plate (25).

7. The refining device according to claim 1, characterized in that: The top of the outer cylinder (1) is provided with an exhaust gas outlet (11) which is in communication with the inner cylinder (2).

8. The refining device according to claim 1, characterized in that: The outer cylinder body (1) is respectively provided with an outer cylinder steam inlet (12) and an outer cylinder water return port (13).

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