Method and equipment for extracting grease in animal bones

Abstract

The invention relates to the technical field of biomass extraction equipment, and discloses a method for extracting grease in animal bones and extraction equipment thereof.The extraction equipment comprises an extraction furnace, a buffer cavity is formed in the extraction furnace, the outer wall of the extraction furnace is fixedly connected with a pressure pipe through a flange plate, and the pressure pipe communicates with the interior of the buffer cavity; a pressurizing mechanism is arranged in the extraction furnace; the pressurizing mechanism comprises a main body, the outer wall of the first isolation sleeve is fixedly connected with the inner wall of the extraction furnace, a connecting hole is formed in the inner wall of the first isolation sleeve, a connecting groove is formed in the outer wall of the first isolation sleeve, the connecting hole communicates with the interior of the connecting groove, and the end, away from the buffer cavity, of the pressure pipe communicates with the interior of the connecting groove. According to the biomass extraction device disclosed by the invention, bone oil is extracted from aggregates by adopting a waterproof cooking mode through the pressurizing mechanism, and water vapor is guided, so that the steam is mixed with the aggregates and medium water for rapid heating, and the extraction efficiency of the biomass extraction device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biomass extraction equipment, in particular to a method for extracting oil from animal bones and an extraction equipment thereof. BACKGROUND

[0002] Animal bone oil extraction is to separate the oil components in the animal bones from the bone tissue by processing the animal bones to obtain oil products with specific functions.

[0003] The patent application with the application number CN202220805991.0 discloses an animal oil extraction device, which comprises an extraction box, the inner cavity bottom surface of which is provided with an oil guide slope, and the side surface of the extraction box is provided with an oil outlet; a supporting ring is arranged on the inner wall of the middle part of the extraction box, and a filter plate is placed on the supporting ring and slidably embedded in the inner part of the extraction box, and a layer of filter screen is laid on the filter plate; two guide rods are vertically installed at both ends of the filter plate and extend upward, and a pressing plate is slidably sleeved on the two guide rods and arranged in parallel above the filter plate; and a lifting mechanism is installed on the extraction box to drive the pressing plate to move up and down.

[0004] However, in the process of extracting oil from animal bones by the extraction equipment, direct high-temperature cooking of the bones may cause the bottom of the equipment to be pasted, and in the pressing process, since different sizes of bone materials cannot be effectively classified, the large bones and small bones are mixed and pressed unevenly, affecting the extraction efficiency of the biomass extraction equipment for bone oil. SUMMARY

[0005] The present application aims to provide a method for extracting oil from animal bones and an extraction equipment thereof to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a method for extracting oil from animal bones, comprising;

[0007] S1, placing the animal bones in the extraction equipment and injecting water to cover the animal bones, and indirectly heating the animal bones by the water medium;

[0008] S2, in the process of indirectly heating the animal bones by the water medium, the water vapor generated pressurizes the inside of the equipment, and the water vapor is guided to act on the animal bones and the water medium, the steam generates bubbles in the water medium and the animal bones to rapidly heat the water medium, and causes the animal bones to vibrate, promoting the small-size bone materials to sink along the gaps between the large-size bone materials;

[0009] S3, rolling and pressing the large-size animal bones on the surface layer to release the oil in the large-size animal bones and make it float on the water surface;

[0010] S4, adding cold water to the water surface, so that the animal bone oil floating on the water surface is cooled and stratified with water;

[0011] S5, extracting the animal bone oil after stratification.

[0012] An extraction device for extracting oil from animal bones is suitable for an extraction method for extracting oil from animal bones, comprising an extraction furnace, a buffer cavity is formed in the inside of the extraction furnace, a pressure pipe is fixedly connected to the outer wall of the extraction furnace through a flange plate, the pressure pipe is in communication with the inside of the buffer cavity, and a pressurizing mechanism is arranged in the inside of the extraction furnace.

[0013] The pressurizing mechanism comprises;

[0014] The outer wall of the isolation sleeve one is fixedly connected to the inner wall of the extraction furnace, a connecting hole is formed in the inner wall of the isolation sleeve one, a connecting groove is formed in the outer wall of the isolation sleeve one, the connecting hole and the connecting groove are in communication with each other, the end of the pressure pipe away from the buffer cavity is in communication with the inside of the connecting groove, a one-way valve is fixedly connected to the inside of the connecting groove, the pressure pipe is used for guiding steam, the one-way valve is used for pressurizing steam and injecting steam into the water medium in the isolation sleeve one through the connecting hole to generate bubbles, so that the animal bones vibrate and small-size bone aggregates sink along the gaps between large-size bone aggregates.

[0015] According to the above technical scheme, the inner wall of the extraction furnace is provided with a flow guiding mechanism, the flow guiding mechanism comprises an isolation sleeve two, the isolation sleeve two is fixedly connected to the inner wall of the extraction furnace, a flow guiding cavity is formed in the inner wall of the isolation sleeve two, flow guiding plates are fixedly connected to the cavity wall of the flow guiding cavity, a guide groove is formed in the outer wall of the isolation sleeve two, and positioning blocks are fixedly connected to the outer wall of the isolation sleeve two.

[0016] According to the above technical scheme, the outer wall of the isolation sleeve two is provided with an extraction cavity, the extraction cavity is used for containing animal bones, the bottom of the isolation sleeve two is provided with a heating cavity, a heating block is arranged in the inside of the heating cavity, and the inside of the extraction cavity is heated by injecting water, the flow guiding cavity is in communication with the inside of the buffer cavity, the flow guiding cavity is in communication with the inside of the heating cavity, and the isolation sleeve two is used for isolating the water medium from the steam.

[0017] According to the above technical solution, a support frame is fixedly connected to the outer wall of the extraction furnace, and a hydraulic cylinder is fixedly connected to the top of the support frame. An extraction port is fixedly connected to the inner wall of the extraction furnace, and the extraction port communicates with the interior of the extraction chamber for extracting bone oil. A feeding port is fixedly connected to the inner wall of the extraction furnace, and the feeding port communicates with the interior of the extraction chamber for feeding animal bones. A water inlet 1 is fixedly connected to the interior of the extraction furnace, and the water inlet 1 communicates with the interior of the heating chamber for injecting water into the heating chamber. A water inlet 2 is fixedly connected to the outer wall of the extraction furnace, and the water inlet 3 communicates with the interior of the extraction chamber for injecting cold water into the extraction chamber. A pressure relief valve is installed on the top of the extraction furnace for adjusting the pressure inside the extraction chamber. A sensor is installed on the top of the extraction furnace for monitoring the pressure inside the extraction chamber.

[0018] According to the above technical solution, the outer wall of the second isolation sleeve is provided with a pressing mechanism. The pressing mechanism includes a sliding sleeve. The inner wall of the sliding sleeve is slidably connected to the outer wall of the second isolation sleeve. A support block is fixedly connected to the inner wall of the sliding sleeve by a thread. A ball is covered and connected to the inner wall of the support block. The outer wall of the ball contacts the guide groove wall and rolls along the guide groove wall. A connecting sleeve is rotatably connected to the outer wall of the sliding sleeve by a bearing. The top of the connecting sleeve is fixedly connected to the output end of the hydraulic cylinder by a connecting rod. The ball rolls along the spiral groove wall of the guide groove, which is used to drive the sliding sleeve to rotate on the outer wall of the second isolation sleeve by the support block.

[0019] According to the above technical solution, the outer wall of the sliding sleeve is provided with a positioning groove, and the positioning groove is connected to the pressing plate through the docking block. The inner wall of the pressing plate is fixedly connected to the outer wall of the sliding sleeve by bolts. The bottom of the pressing plate is provided with a guide hole for guiding bone oil. The top of the pressing plate is provided with a guide groove for guiding animal bone fragments.

[0020] According to the above technical solution, the bottom of the pressing plate is provided with an assembly groove, and the wall of the assembly groove is rotatably connected to a pressure roller via a rotating shaft. The pressure roller rises and falls synchronously with the pressing plate, and the pressure roller descends through the rotation of the pressing plate to contact the top of the aggregate and rolls along the top of the aggregate. The pressure roller is used to crush and break up large animal bones located on the surface. The surface of the pressing plate is an inclined surface, which is used to guide the bone fragments.

[0021] According to the above technical solution, the assembly groove wall is provided with a limiting groove, the outer wall of the pressure roller is provided with a circulation groove, a sliding block is slidably connected to the outer wall of the pressure roller, the inner wall of the sliding block is slidably connected to the circulation groove wall through a slider, the top of the sliding block is slidably connected to the limiting groove wall through a slider, the limiting groove is used to limit the sliding block, the sliding block is limited by the circulation groove and the limiting groove, and slides back and forth on the outer wall of the pressure roller, the bottom of the sliding block contacts the top of the aggregate, and is used to adjust the position of the aggregate.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention extracts bone oil from bone materials by steaming them in a water-cooled manner using a pressurizing mechanism, and guides the steam flow so that the steam mixes with the bone materials and the water medium during the extraction process to rapidly raise the temperature, thereby increasing the extraction efficiency of the biomass extraction device.

[0024] 2. The present invention uses a pressurizing mechanism to simulate the boiling process of water during the mixing of steam and bone materials, causing the bone materials to vibrate. This causes smaller bone materials to sink along with larger bone materials, increasing the balance of force during the pressing of larger bone materials and improving the pressing efficiency of the biomass extraction device for bone oil.

[0025] 3. This invention guides the flow of water vapor through a flow guiding mechanism and heats the bone material by taking advantage of the fact that the steam temperature is higher than the boiling water temperature, thereby rapidly raising the temperature of the bone material and separating bone oil, thus increasing the extraction efficiency of bone oil by the biomass extraction device.

[0026] 4. The present invention uses a pressing mechanism to uniformly press the bone material, and rotates the mechanism to uniformly crush the bone material during the pressing process. At the same time, the crushing position of the bone material is adjusted during the crushing process to prevent the bone material from being unable to break due to tilting and rolling during the pressing process, thereby increasing the crushing efficiency of the biomass extraction equipment for pressing the bone material. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention. Figure One ;

[0028] Figure 2 This is a schematic diagram of the structure of the present invention. Figure Two ;

[0029] Figure 3 Cross-sectional view of the present invention Figure One ;

[0030] Figure 4 Cross-sectional view of the present invention Figure Two ;

[0031] Figure 5 This is a schematic diagram of the pressurization mechanism of the present invention;

[0032] Figure 6 This is a schematic diagram of the flow guiding mechanism of the present invention. Figure One ;

[0033] Figure 7 This is a schematic diagram of the flow guiding mechanism of the present invention. Figure Two ;

[0034] Figure 8 This is a schematic diagram of the pressing mechanism of the present invention;

[0035] Figure 9 This is a cross-sectional view of the pressing mechanism of the present invention.

[0036] In the diagram: 100, support frame; 101, extraction furnace; 102, hydraulic cylinder; 103, feeding port; 104, extraction port; 105, water inlet one; 106, pressure relief valve; 107, sensor; 108, pressure pipe; 109, water inlet two; 110, water inlet three; 111, buffer chamber; 112, extraction chamber; 113, heating chamber; 200, pressurization mechanism; 201, isolation sleeve one; 202, connecting groove; 203, one-way valve; 204, connecting hole; 300. Flow guiding mechanism; 301. Isolation sleeve II; 302. Flow guiding cavity; 303. Flow guiding plate; 304. Guide groove; 305. Positioning block; 400. Pressing mechanism; 401. Sliding sleeve; 402. Pressing plate; 403. Flow guiding hole; 404. Flow guiding groove; 405. Connecting sleeve; 406. Assembly groove; 407. Limiting groove; 408. Support block; 409. Ball bearing; 410. Positioning groove; 411. Pressure roller; 412. Circulation groove; 413. Sliding block. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1, please refer to Figures 1-7 The present invention provides a technical solution: an extraction method for extracting fat from animal bones, comprising:

[0039] S1. Place the animal bones in the extraction device and fill the device with water to cover the animal bones. The animal bones are then indirectly heated through the water medium.

[0040] S2. During the indirect heating of animal bones through water medium, the generated water vapor pressurizes the inside of the equipment and guides the water vapor to act on the animal bones and water medium. The steam generates bubbles in the water medium and animal bones, which rapidly heats the water medium and causes the animal bones to vibrate, causing small-sized aggregates to sink along the gaps between large-sized aggregates.

[0041] S3. Press and squeeze the large animal bones on the surface to release the oil in the large animal bones and make them float on the water surface;

[0042] S4. Add cold water to the water surface to cool down the animal bone oil floating on the surface and form a stratified layer with the water;

[0043] S5. Extract the layered animal bone oil.

[0044] An extraction apparatus for extracting fat from animal bones, applicable to the extraction method of fat from animal bones, includes an extraction furnace 101, an internal buffer chamber 111, a pressure pipe 108 fixedly connected to the outer wall of the extraction furnace 101 via a flange, the pressure pipe 108 communicating with the interior of the buffer chamber 111, a support frame 100 fixedly connected to the outer wall of the extraction furnace 101, a hydraulic cylinder 102 fixedly connected to the top of the support frame 100, an extraction port 104 fixedly connected to the inner wall of the extraction furnace 101, communicating with the interior of the extraction chamber 112, for extracting bone oil, and a feeding port 103 fixedly connected to the inner wall of the extraction furnace 101, communicating with the interior of the extraction chamber 112, for feeding animal bones. The extraction furnace 101 is internally connected to a water inlet 105, which is connected to the heating chamber 113 for injecting water into the heating chamber 113. A second water inlet 109 is fixedly connected to the outer wall of the extraction furnace 101, which is connected to the extraction chamber 112 for injecting water into the extraction chamber 112. A third water inlet 110 is fixedly connected to the outer wall of the extraction furnace 101, which is connected to the extraction chamber 112 for adding cold water into the extraction chamber 112. A pressure relief valve 106 is installed at the top of the extraction furnace 101 to adjust the internal pressure of the extraction chamber 112. A sensor 107 is installed at the top of the extraction furnace 101 to monitor the internal pressure of the extraction chamber 112. A pressurization mechanism 200 is installed inside the extraction furnace 101.

[0045] In the process of extracting oil from animal bones, directly steaming the bones at high temperatures can easily lead to scorching at the bottom of the equipment. Moreover, during the pressing process, the inability to effectively classify bones of different sizes can result in uneven pressure when large and small bones are mixed and pressed. Therefore, a pressure boosting mechanism 200 is set up to extract bone oil by steaming the bones in a water bath and guiding the steam to mix with the bones and water medium during the extraction process, which rapidly raises the temperature and increases the extraction efficiency of the biomass extraction device. During the mixing process of steam and bones, the process simulates boiling water, causing the bones to vibrate and causing smaller bones to sink along with larger bones. This increases the uniformity of pressure during the pressing of larger bones and improves the pressing efficiency. By setting up a flow guiding mechanism 300 to guide the steam and using the fact that the steam temperature is higher than the boiling water temperature, the bones are heated, which increases the extraction efficiency of bone oil by the biomass extraction device.

[0046] The booster mechanism 200 includes;

[0047] Isolation sleeve 201 is fixedly connected to the inner wall of extraction furnace 101. The inner wall of isolation sleeve 201 has a connection hole 204 and the outer wall of isolation sleeve 201 has a connection groove 202. The connection hole 204 communicates with the inside of the connection groove 202. The end of pressure pipe 108 away from buffer chamber 111 communicates with the inside of connection groove 202. A one-way valve 203 is fixedly connected inside connection groove 202. Pressure pipe 108 is used to guide steam. One-way valve 203 is used to pressurize steam and inject steam into water medium through connection hole 204 to generate bubbles, causing animal bones to vibrate and causing small-sized aggregates to sink along the gaps between large-sized aggregates.

[0048] An extraction furnace 101 has a flow guiding mechanism 300 on its inner wall. The flow guiding mechanism 300 includes a second isolation sleeve 301, which is fixedly connected to the inner wall of the extraction furnace 101. A flow guiding cavity 302 is formed on the inner wall of the second isolation sleeve 301, and a flow guiding plate 303 is fixedly connected to the wall of the flow guiding cavity 302. A guide groove 304 is formed on the outer wall of the second isolation sleeve 301, and a positioning block 305 is fixedly connected to the outer wall of the second isolation sleeve 301. The flow guiding cavity 302 is used to guide steam. The flow guiding plate 303 is spirally arranged on the wall of the flow guiding cavity 302 for guiding steam. The guide groove 304 is spirally formed on the outer wall of the second isolation sleeve 301. An extraction cavity 112 is provided on the outer wall of the second isolation sleeve 301 for holding animal bones. A heating chamber 113 is provided at the bottom, and a heating block is provided inside the heating chamber 113 for heating the animal bones inside the extraction chamber 112 by injecting water. The guide chamber 302 is connected to the interior of the buffer chamber 111 and the interior of the heating chamber 113. The isolation sleeve 301 is used to isolate the water medium from the steam. When the extraction equipment for extracting oil from animal bones is put into use, the bone material is filled into the extraction chamber 112 inside the extraction furnace 101 through the feeding port 103, and water is injected into the extraction chamber 112 through the water injection port 109, covering the bone material. The heating chamber 113 is filled with water medium through the water injection port 105, and the water medium filled in the heating chamber 113 is heated by the heating block provided inside the heating chamber 113. Heat is conducted through the second isolation sleeve 301 to gradually raise the temperature of the water and bone material inside the extraction chamber 112, causing bone oil to be extracted from the bone material. Simultaneously, the water vapor generated after the water medium inside the heating chamber 113 boils enters the guide chamber 302 and is then guided into the buffer chamber 111 for buffering. After being buffered, the water vapor is guided through the pressure pipe 108 into the connecting groove 202. The steam is isolated by the first isolation sleeve 201, allowing the water vapor to be pressurized through the one-way valve 203 and discharged from the connecting hole 204 into the water filling the extraction chamber 112. This increases the pressure inside the extraction chamber 112, raising the upper temperature limit. The mixing of water vapor and water inside the extraction chamber 112 causes the water inside the extraction chamber 112 to heat up rapidly, increasing... The process accelerates the release of bone glue from the bone material. Simultaneously, air bubbles rise within the bone material's crevices, causing vibrations within the bone. This causes smaller bone fragments to sink into the larger crevices, filling them and facilitating pressing by the pressing mechanism 400. During the steam flow from the guide cavity 302 into the buffer cavity 111, the steam temperature, slightly higher than water, is reduced by the guide plate 303 spirally positioned inside the guide cavity 302. This reduces the steam's flow rate within the cavity, allowing its heat to be conducted through the isolation sleeve 301 to its outer wall, indirectly heating the water and bone material inside the extraction cavity 112 and increasing their heating efficiency.Simultaneously, the pressure inside the extraction chamber 112 is observed via sensor 107, and the pressure relief valve 106 is adjusted to stabilize the pressure inside the extraction chamber 112. After the bone material and bone oil separate in the extraction chamber 112, they float on the surface of the water inside the extraction chamber 112, but do not separate into layers. Water is injected into the extraction chamber 112 through water inlet 110, causing the surface of the water inside the extraction chamber 112 to cool rapidly, causing the bone oil and water to separate into layers. Then, the bone oil is extracted from the extraction chamber 112 through extraction port 104.

[0049] Example 2, based on Example 1, please refer to... Figures 8-9 The present invention provides a technical solution: a pressing mechanism 400 is provided on the outer wall of the isolation sleeve 301;

[0050] In the process of extracting oil from animal bones, the uneven force during the mixing and pressing of large and small bones affects the extraction efficiency of the biomass extraction equipment. Therefore, a pressing mechanism 400 is set up to press the bone material evenly. During the pressing process, the bone material is evenly crushed by rotation. At the same time, the crushing position of the bone material is adjusted during the crushing process to prevent the bone material from being unable to break due to tilting and rolling during the pressing process, thereby increasing the crushing efficiency of the biomass extraction equipment for pressing the bone material.

[0051] The pressing mechanism 400 includes a sliding sleeve 401. The inner wall of the sliding sleeve 401 is slidably connected to the outer wall of the second isolation sleeve 301. A support block 408 is fixedly connected to the inner wall of the sliding sleeve 401 by a thread. A ball bearing 409 is covered and connected to the inner wall of the support block 408. The outer wall of the ball bearing 409 contacts the groove wall of the guide groove 304 and rolls along the groove wall of the guide groove 304. A connecting sleeve 405 is rotatably connected to the outer wall of the sliding sleeve 401 by a bearing. The top of the connecting sleeve 405 is fixedly connected to the output end of the hydraulic cylinder 102 by a connecting rod. The ball bearing 409 rolls along the spiral groove wall of the guide groove 304 to drive the sliding sleeve 401 to rotate on the outer wall of the second isolation sleeve 301 via the support block 408. A positioning groove 410 is provided on the outer wall of the sliding sleeve 401. The positioning groove 410 is connected by a mating block. A pressing plate 402 is attached, and its inner wall is fixedly connected to the outer wall of a sliding sleeve 401 by bolts. A guide hole 403 is provided at the bottom of the pressing plate 402 for guiding bone oil. A guide groove 404 is provided at the top of the pressing plate 402 for guiding animal bone fragments. An assembly groove 406 is provided at the bottom of the pressing plate 402, and a pressure roller 411 is rotatably connected to the wall of the assembly groove 406 via a rotating shaft. The pressure roller 411 rises and falls synchronously with the pressing plate 402, and descends through the rotation of the pressing plate 402 to contact the top of the aggregate, rolling along the top of the aggregate. The pressure roller 411 is used to crush large-sized animal bones located on the surface. The surface of the pressing plate 402 is inclined to guide the bone fragments. The groove 406 has a limiting groove 407 on its wall, and the outer wall of the pressure roller 411 has a circulation groove 412. A sliding block 413 is slidably connected to the outer wall of the pressure roller 411. The inner wall of the sliding block 413 is slidably connected to the wall of the circulation groove 412 via a slider. The top of the sliding block 413 is slidably connected to the wall of the limiting groove 407 via a slider. The limiting groove 407 is used to limit the sliding block 413. The sliding block 413 is limited by the circulation groove 412 and the limiting groove 407, and slides back and forth on the outer wall of the pressure roller 411. The bottom of the sliding block 413 contacts the top of the aggregate, which is used to adjust the position of the aggregate. During the process of heating the aggregate through the water medium in the heating chamber 113, the hydraulic cylinder 102 is activated as a power source, and the sliding sleeve 401 is driven by the connecting sleeve 405 to move in the isolation sleeve 30. 1. The outer wall slides downward, causing the sliding sleeve 401 to drive the pressing plate 402 to descend synchronously, crushing the bone material and extracting bone oil from it. During the descent of the sliding sleeve 401 driven by the connecting sleeve 405, the ball bearings 409 roll within the guide groove 304 and are guided by the guide groove 304 spirally opened on the outer wall of the second isolation sleeve 301. This allows the sliding sleeve 401 to be limited within the guide groove 304 by the ball bearings 409 during descent. The support block 408 drives the sliding sleeve 401 to rotate on the outer wall of the second isolation sleeve 301. Simultaneously, the sliding sleeve 401 engages with the docking block through the positioning groove 410, causing the pressing plate 402 to rotate synchronously with the sliding sleeve 401, thus crushing the bone material and extracting bone oil.The torsional force generated by rotation increases the pressure relief efficiency on the bone, making it easier to crush and extract bone oil. Simultaneously, the guide groove 304 guides the spiral of the ball bearings 409, causing the sliding sleeve 401 to drive the pressing plate 402 to rotate, increasing the stability of the pressing plate 402 in crushing and extracting bone oil. When the bottom of the pressing plate 402 contacts the top of the bone, the pressure roller 411 contacts the top of the bone, and the rotation of the pressing plate 402 on the top of the bone causes the bottom of the pressure roller 411 to pass through... The friction generated between the pressure roller 411 and the bone material drives the roller to rotate within the assembly groove 406, further crushing the bone material. Simultaneously, during the rotation of the pressure roller 411, the sliding block 413 slides within the circulation groove 412 via a slider, and is then limited by the limiting groove 407, sliding on the outer wall of the pressure roller 411 in a reciprocating motion to adjust the position of the bone material, increasing the crushing efficiency of the pressure roller 411. The crushed bone material separates from the bone oil and flows through the guide hole 403. The bone fragments float in the water filling the extraction chamber 112. When the hydraulic cylinder 102 drives the sliding sleeve 401 to slide upward on the outer wall of the isolation sleeve 301 via the connecting sleeve 405, the bone fragments are squeezed from inside the guide hole 403 to the surface of the pressing plate 402. As the pressing plate 402 slides upward, the inclined surface of the pressing plate 402 drives the bone fragments to move upward in the water of the extraction chamber 112, allowing the bone fragments to pass through the guide groove 40. 4. Guided, the bone fragments slide towards the outer wall of the pressing plate 402, falling back to the bottom of the pressing plate 402 through the gap between the pressing plate 402 and the inner wall of the extraction furnace 101. Water vapor bubbles output through the connecting hole 204 cause the bone fragments to sink through the larger bone gaps to the bottom of the larger bone. Then, the hydraulic cylinder 102 is activated, driving the sliding sleeve 401 to slide downwards on the outer wall of the isolation sleeve 301 via the connecting sleeve 405, further pressing the bone with the pressing plate 402 until pressing is complete.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for extracting fat from animal bones, characterized in that: include; S1. Place the animal bones in the extraction device and fill the device with water to cover the animal bones. The animal bones are then indirectly heated through the water medium. S2. During the indirect heating of animal bones through water medium, the generated water vapor pressurizes the inside of the equipment and guides the water vapor to act on the animal bones and water medium. The steam generates bubbles in the water medium and animal bones, which rapidly heats the water medium and causes the animal bones to vibrate, causing small-sized aggregates to sink along the gaps between large-sized aggregates. S3. Press and squeeze the large animal bones on the surface to release the oil in the large animal bones and make them float on the water surface. S4. Add cold water to the water surface to cool down the animal bone oil floating on the surface and form a stratified layer with the water; S5. Extract the layered animal bone oil.

2. An extraction apparatus for extracting fat from animal bones, applicable to the extraction method for extracting fat from animal bones as described in claim 1, comprising an extraction furnace (101), characterized in that: The extraction furnace (101) has a buffer chamber (111) inside. The outer wall of the extraction furnace (101) is fixedly connected to a pressure pipe (108) via a flange. The pressure pipe (108) communicates with the inside of the buffer chamber (111). The extraction furnace (101) is equipped with a pressurization mechanism (200). The pressurization mechanism (200) includes: Isolation sleeve 1 (201), the outer wall of isolation sleeve 1 (201) is fixedly connected to the inner wall of extraction furnace (101), the inner wall of isolation sleeve 1 (201) is provided with connection hole (204), the outer wall of isolation sleeve 1 (201) is provided with connection groove (202), the connection hole (204) is connected to the inside of connection groove (202), the end of pressure pipe (108) away from buffer chamber (111) is connected to the inside of connection groove (202), the inside of connection groove (202) is fixedly connected with one-way valve (203), the pressure pipe (108) is used to guide steam, the one-way valve (203) is used to pressurize steam and inject steam into the water medium of isolation sleeve 1 (201) through connection hole (204) to generate bubbles, causing animal bones to vibrate and causing small-sized aggregates to sink along the gaps between large-sized aggregates.

3. The extraction device for extracting oil from animal bones according to claim 2, characterized in that: The inner wall of the extraction furnace (101) is provided with a flow guiding mechanism (300). The flow guiding mechanism (300) includes an isolation sleeve (301), which is fixedly connected to the inner wall of the extraction furnace (101). The inner wall of the isolation sleeve (301) is provided with a flow guiding cavity (302). A flow guiding plate (303) is fixedly connected to the cavity wall of the flow guiding cavity (302). A guide groove (304) is provided on the outer wall of the isolation sleeve (301). A positioning block (305) is fixedly connected to the outer wall of the isolation sleeve (301). The flow guiding cavity (302) is used to guide the steam. The flow guiding plate (303) is spirally arranged on the cavity wall of the flow guiding cavity (302) for guiding the steam. The guide groove (304) is spirally opened on the outer wall of the isolation sleeve (301).

4. The extraction device for extracting oil from animal bones according to claim 3, characterized in that: The outer wall of the second isolation sleeve (301) is provided with an extraction cavity (112), which is used to hold animal bones. The bottom of the second isolation sleeve (301) is provided with a heating cavity (113), which is provided with a heating block inside the heating cavity (113) for heating the animal bones inside the extraction cavity (112) by injecting water. The guide cavity (302) is connected to the buffer cavity (111), and the guide cavity (302) is connected to the heating cavity (113). The second isolation sleeve (301) is used to isolate the water medium from the steam.

5. The extraction device for extracting oil from animal bones according to claim 2, characterized in that: The outer wall of the extraction furnace (101) is fixedly connected to a support frame (100), and the top of the support frame (100) is fixedly connected to a hydraulic cylinder (102). The inner wall of the extraction furnace (101) is fixedly connected to an extraction port (104), which communicates with the interior of the extraction chamber (112) for extracting bone oil. The inner wall of the extraction furnace (101) is fixedly connected to a feeding port (103), which communicates with the interior of the extraction chamber (112) for feeding animal bones. The interior of the extraction furnace (101) is fixedly connected to a water inlet (105), which communicates with the interior of the heating chamber (113) for heating the interior of the heating chamber (113). 113) Internal water injection: The outer wall of the extraction furnace (101) is fixedly connected to a second water injection port (109), which is connected to the inside of the extraction chamber (112) for injecting water into the extraction chamber (112). The outer wall of the extraction furnace (101) is fixedly connected to a third water injection port (110), which is connected to the inside of the extraction chamber (112) for adding cold water into the extraction chamber (112). A pressure relief valve (106) is provided on the top of the extraction furnace (101) for adjusting the pressure inside the extraction chamber (112). A sensor (107) is provided on the top of the extraction furnace (101) for monitoring the pressure inside the extraction chamber (112).

6. The extraction device for extracting oil from animal bones according to claim 3, characterized in that: The outer wall of the second isolation sleeve (301) is provided with a pressing mechanism (400). The pressing mechanism (400) includes a sliding sleeve (401). The inner wall of the sliding sleeve (401) is slidably connected to the outer wall of the second isolation sleeve (301). The inner wall of the sliding sleeve (401) is fixedly connected to a support block (408) by a thread. The inner wall of the support block (408) is covered and connected with a ball (409). The outer wall of the ball (409) contacts the groove wall of the guide groove (304) and rolls along the groove wall of the guide groove (304). The outer wall of the sliding sleeve (401) is rotatably connected to a connecting sleeve (405) by a bearing. The top of the connecting sleeve (405) is fixedly connected to the output end of the hydraulic cylinder (102) by a connecting rod. The ball (409) rolls along the spiral groove wall of the guide groove (304) to drive the sliding sleeve (401) to rotate on the outer wall of the second isolation sleeve (301) by the support block (408).

7. The extraction device for extracting oil from animal bones according to claim 6, characterized in that: The outer wall of the sliding sleeve (401) is provided with a positioning groove (410), and the positioning groove (410) is connected to the pressing plate (402) through a connecting block. The inner wall of the pressing plate (402) is fixedly connected to the outer wall of the sliding sleeve (401) by bolts. The bottom of the pressing plate (402) is provided with a guide hole (403) for guiding bone oil. The top of the pressing plate (402) is provided with a guide groove (404) for guiding animal bone fragments.

8. The extraction device for extracting oil from animal bones according to claim 7, characterized in that: The bottom of the pressing plate (402) is provided with an assembly groove (406). The wall of the assembly groove (406) is rotatably connected to a pressure roller (411) via a rotating shaft. The pressure roller (411) rises and falls synchronously with the pressing plate (402), and the pressure roller (411) descends through the rotation of the pressing plate (402) to contact the top of the aggregate and roll along the top of the aggregate. The pressure roller (411) is used to crush and break up large animal bones located on the surface. The surface of the pressing plate (402) is an inclined surface, which is used to guide the bone fragments.

9. The extraction device for extracting oil from animal bones according to claim 8, characterized in that: The assembly groove (406) has a limiting groove (407) on its wall, and the pressure roller (411) has a circulation groove (412) on its outer wall. A sliding block (413) is slidably connected to the outer wall of the pressure roller (411). The inner wall of the sliding block (413) is slidably connected to the wall of the circulation groove (412) via a slider. The top of the sliding block (413) is slidably connected to the wall of the limiting groove (407) via a slider. The limiting groove (407) is used to limit the sliding block (413). The sliding block (413) is limited by the circulation groove (412) and the limiting groove (407) and slides back and forth on the outer wall of the pressure roller (411). The bottom of the sliding block (413) contacts the top of the aggregate and is used to adjust the position of the aggregate.

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