Rice bran meal particle cooling and conveying device

Abstract

The invention discloses a cooling and conveying device for rice bran meal particles. Comprising a fixed barrel body, a circular barrel body fixed in the middle of the inner bottom of the fixed barrel body, a discharging opening formed in the bottom of the fixed barrel body and communicated with the interior of the circular barrel body, a cooling cavity formed in the side walls of the fixed barrel body and the circular barrel body and used for cooling liquid to flow, and a liquid inlet pipe arranged on the outer side wall of the fixed barrel body and communicated with the cooling cavity. The liquid outlet pipe is arranged on the inner side wall of the circular barrel body and communicates with the cooling cavity; the movable barrel body is rotationally arranged in the fixed barrel body and reversely buckled on the circular barrel body; the rotating mechanism drives the movable barrel body to rotate; the outer spiral blade is fixedly arranged on the outer wall of the movable barrel body; the annular protrusion is fixedly arranged at the inner bottom of the fixed barrel body and arranged on the outer wall of the movable barrel body in a sleeving mode, and the material changing opening is formed in the wall of the movable barrel body and communicates with the interiors of the movable barrel body and the fixed barrel body. The cooling device has the advantages of being small in use space and high in cooling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of rice bran meal processing machinery, and particularly relates to a rice bran meal particle cooling and conveying device. Background Art

[0002] Rice bran meal is a by-product generated during the processing of rice. It is mainly the by-product after producing rice bran oil through the extrusion leaching method. It is rich in protein, amino acids, vitamins and minerals, so it is often used as a feed additive. Currently, the freshly produced and processed rice bran meal is generally in powder form. In order to facilitate transportation and feed production, a granulator is usually used to reprocess the rice bran meal to obtain granular rice bran meal. However, since the granulator realizes the granulation of materials through physical extrusion and heat treatment, the temperature of the rice bran meal particles produced by the granulator is very high. Usually, it is necessary to manually spread out the rice bran meal particles and wait for them to cool naturally for a long time before they can be transferred and packaged.

[0003] The Chinese utility model patent with the authorization announcement number CN211003682U discloses a rice bran meal particle cooling and conveying device. Its structure includes a fixed frame. A cooling fan, a support plate and an air duct are arranged on the fixed frame. The cooling fan is connected to the middle of the fixed frame by rivets. The support plate is connected to the upper end of the fixed frame by rivets. The air duct is connected to the inner wall of the fixed frame by rivets. An air outlet is arranged at the upper end of the air duct. A rotating shaft and a driving motor are arranged on the support plate. Both ends of the rotating shaft are fitted inside the fixed plate and are movably connected to the inside of the fixed plate. The driving motor is connected to the right end of the support plate by rivets. A conveyor belt is arranged on the outer surface of the rotating shaft. Through holes and baffles are arranged on the conveyor belt.

[0004] Although the above-mentioned conveying device can achieve a cooling method faster than natural cooling, the conveyor belt conveying structure has a long length and a large use space, and cannot work in a small environment. At the same time, in order to prevent the rice bran meal particles from being blown off the conveyor belt, the actual working wind speed of the air-cooling structure adopted by the device is small, which not only weakens the cooling performance of the air-cooling structure, but also needs to correspondingly reduce the conveyor belt conveying speed and extend the cooling time of the rice bran meal, resulting in a longer cooling time required for the rice bran meal particles and a low cooling efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a rice bran meal particle cooling and conveying device, which has the effects of small use space and high cooling efficiency.

[0006] The above technical object of the present invention is achieved through the following technical solutions: A rice bran meal particle cooling and conveying device, including a fixed barrel body, a bottomless circular barrel body fixedly arranged in the middle of the inner bottom of the fixed barrel body, a discharge port opened at the bottom of the fixed barrel body and communicating with the inside of the circular barrel body, a cooling cavity provided on the side walls of the fixed barrel body and the circular barrel body for the coolant to flow, a liquid inlet pipe provided on the outer side wall of the fixed barrel body and communicating with the cooling cavity, a liquid outlet pipe provided on the inner side wall of the circular barrel body and communicating with the cooling cavity, a movable barrel body rotatably arranged inside the fixed barrel body and buckled on the circular barrel body, a rotation mechanism for driving the rotation of the movable barrel body, an outer spiral blade fixedly arranged on the outer wall of the movable barrel body, an inner spiral blade fixedly arranged on the inner wall of the movable barrel body, an annular protrusion fixedly arranged on the inner bottom of the fixed barrel body and sleeved on the outer wall of the movable barrel body, and a material changing port provided on the wall of the movable barrel body and communicating with the inside of the movable barrel body and the fixed barrel body;

[0007] The fixed barrel body, the movable barrel body and the circular barrel body are coaxial, and the outer diameters, inner diameters and heights of the three decrease in sequence. The top of the movable barrel body is in the shape of a cone with a narrow top and a wide bottom. The sides of the outer spiral blade and the inner spiral blade far away from the movable barrel body respectively contact and rub against the inner side wall of the fixed barrel body and the outer side wall of the circular barrel body. The highest end of the outer spiral blade is located below the top of the movable barrel body and the lowest end is located above the top of the annular protrusion, and there is a gap for storing rice bran meal particles between the lowest end of the outer spiral blade and the top of the annular protrusion. The highest end of the inner spiral blade is located above the top of the circular barrel body and the lowest end is located below the top of the annular protrusion, and the lowest end of the inner spiral blade contacts and rubs against the inner bottom wall of the fixed barrel body. The outer circle of the annular protrusion is adjacent to the inner side wall of the fixed barrel body. The top of the annular protrusion is a conical inclined surface, and the outer circle of the annular protrusion is high and the inner circle is low. The highest point of the inner circle of the annular protrusion is not lower than the lowest point of the material changing port and not higher than the highest point of the material changing port.

[0008] A further setting of the present invention is: The rotation mechanism includes three vertically parallel and evenly fixed support rods on the outer side wall of the fixed barrel body, a support top plate fixed at the top ends of the three support rods and horizontally located above the top of the fixed barrel body, a rotating shaft fixedly connected to the center of the outer top of the movable barrel body, and a worm and gear reduction motor fixed on the support top plate and with the output end connected to the rotating shaft. The worm and gear reduction motor is installed above the support top plate. The rotating shaft extends out from the opening at the top of the fixed barrel body and rotates through the support top plate to connect with the output end of the worm and gear reduction motor.

[0009] A further setting of the present invention is: The lower end of the support rod is fixedly connected with a support leg, and the support leg supports and lifts the fixed barrel body to a certain height. A collection box for collecting rice bran meal particles is placed in the middle of the support leg, and the top opening of the collection box is directly opposite to the discharge port of the fixed barrel body.

[0010] A further setting of the present invention is that an air extraction pump is fixedly installed on the top of the support top plate, an air delivery pipe with one end fixedly connected to the suction end of the air extraction pump, a multi-way pipe with one end connected to the other end of the air delivery pipe, and a plurality of filter nets respectively fixed at the inlets of the remaining ends of the multi-way pipe. The end of the multi-way pipe provided with the filter net extends into the interior of the circular cylinder from the discharge port.

[0011] A further setting of the present invention is that the multi-way pipe includes an annular distribution part, a connecting part with both ends respectively connected to the distribution part and the air delivery pipe and communicating the two, and a plurality of air suction main parts with one end commonly connected to the distribution part and communicating with the interior of the distribution part. The distribution part is located below the discharge port, and the air suction main parts on the distribution part vertically extend into the interior of the circular cylinder from the discharge port. The filter net is arranged at the upper end inlet of the air suction main part.

[0012] A further setting of the present invention is that the multi-way pipe further includes a plurality of air suction branch parts respectively fixedly connected to the side walls of all the air suction main parts and communicating with the interior of the air suction main parts. The air suction branch parts are fixedly penetrated through the side wall of the circular cylinder and communicate the movable barrel body and the interior of the air suction main parts. The filter net is arranged at one end of the air suction branch part close to the movable barrel body, and the shape of the filter net and the end part of this end of the air suction branch part are integrally formed with the shape of the outer wall of the circular cylinder.

[0013] A further setting of the present invention is that the top of the circular cylinder is a conical inclined surface, and a conical hopper extending the lower half section of this conical inclined surface is fixedly arranged on the inner ring of the circular cylinder. The bottom opening of the conical hopper is fixedly connected with a discharge pipe extending out of the discharge port. The liquid discharge pipe, the air suction main part and the air suction branch part are located in the gap between the inner wall of the circular cylinder and the outer walls of the conical hopper and the discharge pipe. The discharge pipe is located in the middle of the annular distribution part and penetrates through the annular distribution part. The top end of the air suction main part is fixedly penetrated through the wall of the conical hopper, and the filter net at the end of the air suction main part and the shape of the top end of the air suction main part are integrally formed with the shape of the inner wall of the conical hopper.

[0014] A further setting of the present invention is that it further includes a semi-circular plate one and a semi-circular plate two movably arranged at the bottom of the support plate, and the lower ends of the semi-circular plate one and the semi-circular plate two extend into the barrel opening of the fixed barrel. The semi-circular plate one, the semi-circular plate two and the fixed barrel are coaxial. The inner diameter of the fixed barrel is greater than the outer diameter of the semi-circular plate two, and the inner diameter of the semi-circular plate two is greater than the outer diameter of the semi-circular plate one. An annular connecting plate is fixedly arranged at the bottom of the support top plate, and the semi-circular plate one or the semi-circular plate two and the annular connecting plate are coaxial. An annular guide groove one and an annular guide groove two with a T-shaped cross-section are opened at the bottom of the annular connecting plate. The annular guide groove one and the annular guide groove two are coaxial, and the diameter of the annular guide groove one is smaller than the diameter of the annular guide groove two. A plurality of rollers rolling in the annular guide groove one and the annular guide groove two are respectively rotatably arranged at the tops of the semi-circular plate one and the semi-circular plate two, and the semi-circular plate one and the semi-circular plate two rotate and move around the axis of the annular connecting plate.

[0015] A further setting of the present invention is that handles are respectively fixedly arranged on the outer side walls of the first semi-circular plate and the second semi-circular plate. The handles are located in the middle of the first semi-circular plate or the second semi-circular plate and are close to one side of the first semi-circular plate or the second semi-circular plate.

[0016] A further setting of the present invention is that the first semi-circular plate and the second semi-circular plate are made of acrylic transparent material.

[0017] The beneficial effects of the present invention are as follows:

[0018] By adopting the above cooling and conveying device, when cooling and reducing the temperature of rice bran meal particles, first, equipment such as a container or a hoist is used to pour the high-temperature rice bran meal particles into the fixed barrel body. Then, the rotating movable barrel body and the outer spiral blades on its outer wall will disperse the rice bran meal particles entering the fixed barrel body and convey the rice bran meal particles to the bottom of the fixed barrel body in sequence. Next, the rice bran meal particles conveyed to the top of the annular convex cone by the outer thread blades will enter the gap between the movable barrel body and the circular barrel body through the feeding port that continuously moves along the annular convex. Since the inner spiral blades on the inner wall of the movable barrel body rotate in the opposite direction to the above-mentioned outer spiral blades, and the lowest end of the inner spiral blades contacts and rubs against the inner bottom wall of the fixed barrel body, the rice bran meal particles entering the gap between the movable barrel body and the circular barrel body will be conveyed upward by the inner spiral blades and reach the opening at the top of the circular barrel body. At the same time, the coolant circulation system respectively adds coolant into the cooling cavities in the fixed barrel body wall and the circular barrel body wall through the liquid inlet pipe and the liquid outlet pipe, and in this way, quickly exchanges heat and reduces the temperature of the rice bran meal particles conveyed by the outer spiral blades and the inner spiral blades. Finally, the rice bran meal particles that reach the opening at the top of the circular barrel body and are cooled to a certain temperature will fall into the circular barrel body under the push of the rear material and their own gravity, and flow into the collection box through the discharge port at the bottom of the fixed barrel body, so as to obtain the cooled rice bran meal particles.

[0019] The water-cooling and temperature-reducing structure on the above-mentioned fixed barrel body wall and circular barrel body wall, in cooperation with the double-spiral conveying structure inside and outside the movable barrel body, can not only realize the rapid cooling and temperature reduction of rice bran meal particles in a relatively small space environment, but also the above water-cooling and temperature-reducing structure uses the method of circulating low-temperature coolant to take away the heat of the rice bran meal particles inside the fixed barrel body. Therefore, compared with the traditional air-cooling and temperature-reducing structure that uses gas flow for heat exchange, the process of cooling and temperature reduction of rice bran meal particles in the present invention is not only safe and stable, but also has a faster cooling speed and higher cooling efficiency. At the same time, the double-spiral conveying structure of the present invention also has a strong effect of dispersing rice bran meal particles. In cooperation with the semi-closed fixed barrel body and movable barrel body, it can make the heat exchange between the rice bran meal particles and the low-temperature coolant concentrated and sufficient, thereby further improving the cooling effect of the water-cooling and temperature-reducing structure. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the three-dimensional structure schematic diagram of this embodiment;

[0022] Figure 2 is the structural cross-section of this embodiment Figure 1 ;

[0023] Figure 3 is the structural cross-section of this embodiment Figure 2 ;

[0024] In the figure, 1, fixed barrel body; 2, circular barrel body; 21, conical hopper; 22, discharge pipe; 3, discharge port; 4, cooling cavity; 5, liquid inlet pipe; 6, liquid outlet pipe; 7, movable barrel body; 8, rotating mechanism; 81, support rod; 811, support leg; 82, support top plate; 83, rotating shaft; 84, worm and worm gear reduction motor; 9, outer spiral blade; 10, inner spiral blade; 1a, annular protrusion; 1b, material changing port; 1c, collection box; 1d, air extraction pump; 1e, air delivery pipe; 1f, multi-way pipe; 1f1, distribution part; 1f2, connection part; 1f3, main air suction part; 1f4, sub-air suction part; 1g, filter screen; 1h, semi-circular plate one; 1i, semi-circular plate two; 1i1, roller; 1i2, handle; 1j, annular connecting plate; 1j1, annular guide groove one; 1j2, annular guide groove two. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions of the present invention in combination with specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] Embodiment: A rice bran meal particle cooling and conveying device, as Figures 1-3As shown in the figure, it includes a fixed barrel body 1, a circular barrel body 2 which is fixedly arranged in the middle of the inner bottom of the fixed barrel body 1 and has no bottom, a discharge port 3 which is opened on the bottom of the fixed barrel body 1 and communicates with the inside of the circular barrel body 2, a cooling cavity 4 which is arranged on the side walls of the fixed barrel body 1 and the circular barrel body 2 for the coolant to flow, a liquid inlet pipe 5 which is arranged on the outer side wall of the fixed barrel body 1 and communicates with the cooling cavity 4, a liquid outlet pipe 6 which is arranged on the inner side wall of the circular barrel body 2 and communicates with the cooling cavity 4, a movable barrel body 7 which is rotatably arranged inside the fixed barrel body 1 and is buckled on the circular barrel body 2, a rotating mechanism 8 for driving the movable barrel body 7 to rotate, an outer spiral blade 9 which is fixedly arranged on the outer wall of the movable barrel body 7, an inner spiral blade 10 which is fixedly arranged on the inner wall of the movable barrel body 7, an annular protrusion 1a which is fixedly arranged on the inner bottom of the fixed barrel body 1 and sleeved on the outer wall of the movable barrel body 7, and a material changing port 1b which is arranged on the wall of the movable barrel body 7 and communicates with the inside of the movable barrel body 7 and the fixed barrel body 1; the fixed barrel body 1, the movable barrel body 7 and the circular barrel body 2 are coaxial, and the outer diameters, inner diameters and heights of the three decrease in turn. The sides of the outer spiral blade 9 and the inner spiral blade 10 far away from the movable barrel body 7 respectively contact and rub the inner side wall of the fixed barrel body 1 and the outer side wall of the circular barrel body 2. The highest end of the outer spiral blade 9 is located below the top of the movable barrel body 7 and the lowest end is located above the top of the annular protrusion 1a, and there is a gap for storing rice bran meal particles between the lowest end of the outer spiral blade 9 and the top of the annular protrusion 1a. The highest end of the inner spiral blade 10 is located above the top of the circular barrel body 2 and the lowest end is located below the top of the annular protrusion 1a, and the lowest end of the inner spiral blade 10 contacts and rubs the inner bottom wall of the fixed barrel body 1; the outer circle of the annular protrusion 1a is adjacent to the inner side wall of the fixed barrel body 1.

[0027] As Figure 2 , Figure 3 shown in the figure, the top of the movable barrel body 7 is in the shape of a cone with a narrow top and a wide bottom; the top of the annular protrusion 1a is a conical inclined surface, and the outer circle of the annular protrusion 1a is high and the inner circle is low. The highest point of the inner circle of the annular protrusion 1a is not lower than the lowest point of the material changing port 1b and not higher than the highest point of the material changing port 1b. By adopting the above shapes of the top of the movable barrel body 7 and the annular protrusion 1a, it is possible to avoid the rice bran meal particles inside the fixed barrel body 1 from staying at the top of the movable barrel body 7 and the top of the annular protrusion 1a, thereby affecting the transportation of the rice bran meal particles.

[0028] As Figure 1 , Figure 2As shown in the figure, the rotating mechanism 8 includes three vertically parallel and uniformly fixed support rods 81 on the outer side wall of the fixed barrel body 1, a support top plate 82 fixed at the top ends of the three support rods 81 and horizontally located above the top of the fixed barrel body 1, a rotating shaft 83 fixedly connected to the center of the outer top of the movable barrel body 7, and a worm and worm gear reduction motor 84 fixed on the support top plate 82 and with its output end connected to the rotating shaft 83. The worm and worm gear reduction motor 84 is installed above the support top plate 82. The rotating shaft 83 extends out from the top opening of the fixed barrel body 1 and passes through the support top plate 82 to connect to the output end of the worm and worm gear reduction motor 84. By adopting the above rotating mechanism 8, not only can the movable barrel body 7 be reasonably driven to rotate inside the fixed barrel body 1, but also the support structure of the support rods 81 and the support top plate 82 can place the worm and worm gear reduction motor 84 at a high position to avoid the worm and worm gear reduction motor 84 affecting the feeding at the top opening of the solid barrel body.

[0029] As Figure 1 , Figure 3 shown in the figure, a support leg 811 is fixedly connected to the lower end of the support rod 81, and the support leg 811 supports and lifts the fixed barrel body 1 to a certain height. A collection box 1c for collecting rice bran meal particles is placed in the middle of the support leg 811, and the top opening of the collection box 1c is directly opposite to the discharge port 3 of the fixed barrel body 1. By adopting the above support leg 811, not only can the fixed barrel body 1 be stably supported, but also the discharge port 3 of the fixed barrel body 1 can be lifted to facilitate the placement of the collection box 1c to receive materials below the discharge port 3.

[0030] As Figure 2 , Figure 3 shown in the figure, an air extraction pump 1d is fixedly installed on the top of the support top plate 82, an air delivery pipe 1e with one end fixedly connected to the suction end of the air extraction pump 1d, a multi-way pipe 1f with one end connected to the other end of the air delivery pipe 1e, and a plurality of filter meshes 1g respectively fixed at the inlets of the remaining ends of the multi-way pipe 1f. The end of the multi-way pipe 1f provided with the filter mesh 1g extends into the interior of the circular cylinder 2 from the discharge port 3. By adopting the above technical solution, when the air extraction pump 1d is turned on, the end of the multi-way pipe 1f extending into the interior of the circular cylinder 2 will suck away the gas inside the circular cylinder 2, making the interior of the circular cylinder 2 form a negative pressure. At this time, the rice bran meal particles transported to the top of the circular cylinder 2 by the inner spiral blade 10 will be completely sucked into the interior of the circular cylinder 2 under the action of this negative pressure, thus avoiding the retention of rice bran meal particles on the top of the circular cylinder 2 and the inner spiral blade 10. The filter mesh 1g provided at the end of the multi-way pipe 1f can effectively prevent the rice bran meal particles from being sucked into the interior of the multi-way pipe 1f.

[0031] As Figure 2 , Figure 3As shown in the figure, the multi-pass pipe 1f includes an annular distribution part 1f1, a connecting part 1f2 with both ends respectively connected to the distribution part 1f1 and the gas transmission pipe 1e and communicating the two, and a plurality of suction main parts 1f3 with one ends commonly connected to the distribution part 1f1 and communicating with the inside of the distribution part 1f1. The distribution part 1f1 is located below the discharge port 3, and the suction main parts 1f3 on the distribution part 1f1 vertically extend into the circular cylinder 2 from the discharge port 3. The filter screen 1g is arranged at the upper end inlet of the suction main part 1f3. By adopting the above multi-pass pipe 1f structure, it can not only reasonably adapt to the space at the bottom of the fixed barrel 1 and inside the circular cylinder 2, but also create a uniform negative pressure environment inside the circular cylinder 2 with the multi-pass pipe 1f.

[0032] As Figure 3 shown in the figure, the multi-pass pipe 1f further includes a plurality of suction branch parts 1f4 respectively fixedly connected to the side walls of all the suction main parts 1f3 and communicating with the inside of the suction main parts 1f3. The suction branch parts 1f4 are fixedly passed through the side wall of the circular cylinder 2 and communicate the inside of the movable barrel 7 and the suction main parts 1f3. The filter screen 1g is arranged at one end of the suction branch part 1f4 close to the movable barrel 7, and the shape of the filter screen 1g and the end of this end of the suction branch part 1f4 are integrally formed with the shape of the outer wall of the circular cylinder 2. By adopting the above suction branch part 1f4, a negative pressure can be created for the gap between the movable barrel 7 and the circular cylinder 2, which helps the rice bran meal particles at the top of the annular protrusion 1a to quickly pass through the material changing port 1b and enter the gap between the movable barrel 7 and the circular cylinder 2, thus avoiding the retention of rice bran meal particles at the top of the annular protrusion 1a.

[0033] As Figure 2 、 Figure 3 shown in the figure, the top of the circular cylinder 2 is a conical inclined surface, and a conical hopper 21 extending the lower half of this conical inclined surface is fixedly arranged on the inner circle of the circular cylinder 2. The bottom opening of the conical hopper 21 is fixedly connected to a discharge pipe 22 extending out of the discharge port 3. The liquid discharge pipe 6, the suction main parts 1f3 and the suction branch parts 1f4 are located in the gap between the inner wall of the circular cylinder 2 and the outer walls of the conical hopper 21 and the discharge pipe 22. The discharge pipe 22 is located in the middle of the annular distribution part 1f1 and passes through the annular distribution part 1f1. The top end of the suction main part 1f3 is fixedly passed through the wall of the conical hopper 21, and the filter screen 1g at the end of the suction main part 1f3 and the shape of the top end of the suction main part 1f3 are integrally formed with the shape of the inner wall of the conical hopper 21. By adopting the above conical inclined surface and the discharge pipe 22, the pipelines such as the multi-pass pipe 1f and the liquid discharge pipe 6 inside the circular cylinder 2 can be hidden, so as to ensure the safe and smooth departure of the rice bran meal particles entering the inside of the circular cylinder 2 from the fixed barrel 1.

[0034] As Figures 1-3As shown, it also includes a semi-circular plate 1h and a semi-circular plate 1i that are movable at the bottom of the support plate, and the lower ends of the semi-circular plate 1h and the semi-circular plate 1i extend into the barrel mouth of the fixed barrel body 1, the semi-circular plate 1h, the semi-circular plate 1i and the fixed barrel body 1 are coaxial, and the inner diameter of the fixed barrel body 1 is larger than the outer diameter of the semi-circular plate 1i, and the inner diameter of the semi-circular plate 1i is larger than the outer diameter of the semi-circular plate 1h, and the bottom of the support top plate 82 is fixedly provided with an annular connecting plate 1j, and the semi-circular plate 1h or the semi-circular plate 1i and the annular connecting plate 1j are coaxial. The annular guide groove 1j1 and the annular guide groove 1j2 with T-shaped cross-sections are provided at the bottom of the annular connecting plate 1j, the annular guide groove 1j1 and the annular guide groove 1j2 are coaxial, and the diameter of the annular guide groove 1j1 is smaller than the diameter of the annular guide groove 1j2, and the tops of the semicircular arc plate 1h and the semicircular arc plate 1i are respectively rotatably provided with a plurality of rollers 1i1 rolling on the annular guide groove 1j1 and the annular guide groove 1j2, and the semicircular arc plate 1h and the semicircular arc plate 1i rotate around the axis of the annular connecting plate 1j.

[0035] By adopting the above technical scheme, when it is necessary to add rice bran meal particles to the fixed barrel body 1, the semi-circular plate 1 1h and the semi-circular plate 2 1i are manually pushed to move relative to the bottom of the supporting top plate 82, and the two are partially overlapped, so that an opening that can only add rice bran meal particles into the fixed barrel body 1 can be opened, thereby preventing the rice bran meal particles from being scattered out of the fixed barrel body 1 during the adding process; when the replenishment and addition of rice bran meal particles are suspended, the semi-circular plate 1 1h and the semi-circular plate 2 1i are manually pushed to move relative to the bottom of the supporting top plate 82, and the two are completely staggered, which can not only prevent external debris or impurities from falling into the fixed barrel body 1, but also prevent unauthorized personnel from contacting the moving parts inside the fixed barrel body 1, thereby ensuring the safety of the use of the device.

[0036] like Figure 1 , Figure 2 As shown, handles 1i2 are fixedly arranged on the outer walls of the semi-circular plate 1h and the semi-circular plate 2 1i, respectively. The handles 1i2 are located in the middle of the semi-circular plate 1h or the semi-circular plate 2 1i, and close to one side of the semi-circular plate 1h or the semi-circular plate 2 1i. By adopting the above handles 1i2, it is not only convenient for users to quickly pull the semi-circular plate 1h and the semi-circular plate 2 1i to rotate, but also prevent the user's fingers from being pinched by the semi-circular plate 1h or the semi-circular plate 2 1i. Among them, the semi-circular plate 1h and the semi-circular plate 2 1i are made of transparent acrylic material, which can facilitate the staff to observe the internal situation of the fixed barrel body 1 at any time to ensure the safety of the equipment.

[0037] The working principle of this embodiment:

[0038] When cooling and reducing the temperature of rice bran meal particles, first use equipment such as containers or elevators to pour the high-temperature rice bran meal particles into the interior of the fixed barrel body 1. Then, the rotating movable barrel body 7 and the outer spiral blades 9 on its outer wall will disperse the rice bran meal particles entering the fixed barrel body 1 and sequentially convey the rice bran meal particles towards the bottom of the fixed barrel body 1. Next, the rice bran meal particles transported to the conical top of the annular protrusion 1a by the outer threaded blades will enter the gap between the movable barrel body 7 and the circular barrel body 2 through the material-changing port 1b that continuously moves along the annular protrusion 1a. Since the inner spiral blade 10 on the inner wall of the movable barrel body 7 rotates in the opposite direction to the above-mentioned outer spiral blade 9, and the lowest end of the inner spiral blade 10 contacts and rubs against the inner bottom wall of the fixed barrel body 1, the rice bran meal particles entering the gap between the movable barrel body 7 and the circular barrel body 2 will be conveyed upward by the inner spiral blade 10 until they reach the top opening of the circular barrel body 2. At the same time, the coolant circulation system respectively adds coolant into the cooling cavity 4 in the walls of the fixed barrel body 1 and the circular barrel body 2 through the liquid inlet pipe 5 and the liquid outlet pipe 6. Thus, in this way, the rice bran meal particles conveyed by the outer spiral blade 9 and the inner spiral blade 10 are quickly heat-exchanged and cooled. Finally, the rice bran meal particles that reach the top opening of the circular barrel body 2 and are cooled to a certain temperature will fall into the interior of the circular barrel body 2 under the push of the rear material and their own gravity, and converge into the collection box 1c through the discharge port 3 at the bottom of the fixed barrel body 1, thereby obtaining the cooled and temperature-reduced rice bran meal particles accordingly.

[0039] The water-cooling and temperature-reducing structure on the walls of the above-mentioned fixed barrel body 1 and the circular barrel body 2, in cooperation with the double-spiral conveying structure inside and outside the movable barrel body 7, can not only achieve the rapid cooling and temperature reduction of rice bran meal particles in a relatively small space environment, but also the above water-cooling and temperature-reducing structure uses the method of circulating low-temperature coolant to take away the heat of the rice bran meal particles inside the fixed barrel body 1. Therefore, compared with the traditional air-cooling and temperature-reducing structure that uses gas flow for heat exchange, the process of cooling and temperature-reducing rice bran meal particles in the present invention is not only safe and stable, but also has a faster cooling speed and higher cooling efficiency. At the same time, the double-spiral conveying structure of the present invention also has a strong effect of dispersing rice bran meal particles. In cooperation with the semi-closed fixed barrel body 1 and movable barrel body 7, it can make the heat exchange between the rice bran meal particles and the low-temperature coolant concentrated and sufficient, thereby further improving the cooling effect of the water-cooling and temperature-reducing structure.

Claims

1. A rice bran meal particle cooling and conveying device, characterized in that: The invention comprises a fixed barrel body (1), a bottomless circular cylinder (2) fixedly arranged in the middle of the bottom of the fixed barrel body (1), a discharge port (3) opened at the bottom of the fixed barrel body (1) and connected to the inside of the circular cylinder (2), a cooling cavity (4) arranged on the side walls of the fixed barrel body (1) and the circular cylinder (2) and through which cooling liquid flows, a liquid inlet pipe (5) arranged on the outer wall of the fixed barrel body (1) and connected to the cooling cavity (4), a liquid outlet pipe (6) arranged on the inner wall of the circular cylinder (2) and connected to the cooling cavity (4), and a rotating device (8) arranged on the fixed barrel body (1) and connected to the cooling cavity (4). A movable barrel body (7) is inside the fixed barrel body (1) and is inverted on the circular cylinder body (2); a rotating mechanism (8) for driving the movable barrel body (7) to rotate; an outer spiral blade (9) fixedly arranged on the outer wall of the movable barrel body (7); an inner spiral blade (10) fixedly arranged on the inner wall of the movable barrel body (7); an annular protrusion (1a) fixedly arranged on the inner bottom of the fixed barrel body (1) and sleeved on the outer wall of the movable barrel body (7); and a material replacement port (1b) arranged on the wall of the movable barrel body (7) and communicating the movable barrel body (7) with the interior of the fixed barrel body (1); The fixed barrel body (1), the movable barrel body (7) and the circular cylinder (2) are coaxial, and the outer diameters, inner diameters and heights of the three decrease in sequence; the top of the movable barrel body (7) is in the shape of a cone that is narrow at the top and wide at the bottom; the spirals of the outer spiral blade (9) and the inner spiral blade (10) are opposite, and the sides of the two away from the movable barrel body (7) respectively contact and rub against the inner side wall of the fixed barrel body (1) and the outer side wall of the circular cylinder (2); the highest end of the outer spiral blade (9) is located below the top of the movable barrel body (7), and the lowest end is located above the top of the annular protrusion (1a); and the lowest end of the outer spiral blade (9) and the annular protrusion (1a) are in contact with each other. a) A gap is left between the top and the bottom of the circular cylinder (2) for storing rice bran meal particles; the highest end of the inner spiral blade (10) is located above the top of the circular cylinder (2) and the lowest end is located below the top of the annular protrusion (1a); and the lowest end of the inner spiral blade (10) contacts the inner bottom wall of the frictionally fixed barrel (1); the outer ring of the annular protrusion (1a) is adjacent to the inner side wall of the fixed barrel (1); the top of the annular protrusion (1a) is a conical inclined surface; the outer ring of the annular protrusion (1a) is high and the inner ring is low; the highest point of the inner ring of the annular protrusion (1a) is not lower than the lowest point of the refueling port (1b) and not higher than the highest point of the refueling port (1b).

2. A rice bran meal particle cooling and conveying device according to claim 1, characterized in that: The rotating mechanism (8) comprises three vertically parallel support rods (81) uniformly fixed on the outer wall of the fixed barrel body (1), a support top plate (82) fixed to the top of the three support rods (81) and horizontally located above the top of the fixed barrel body (1), a rotating shaft (83) fixedly connected to the center of the outer top of the movable barrel body (7), and a worm gear reduction motor (84) fixed to the support top plate (82) and with its output end connected to the rotating shaft (83); the worm gear reduction motor (84) is installed above the support top plate (82); the rotating shaft (83) extends out from the top opening of the fixed barrel body (1) and rotates through the support top plate (82) to connect to the output end of the worm gear reduction motor (84).

3. A rice bran meal particle cooling and conveying device according to claim 2, characterized in that: The lower end of the support rod (81) is fixedly connected to a support leg (811), and the support leg (811) supports and lifts the fixed barrel body (1) to a certain height. A collection box (1c) for collecting rice bran meal particles is placed in the middle of the support leg (811), and the top opening of the collection box (1c) is directly opposite to the discharge port (3) of the fixed barrel body (1).

4. A rice bran meal particle cooling and conveying device according to claim 2, characterized in that: A vacuum pump (1d), an air supply pipe (1e) having one end fixedly connected to the air suction end of the vacuum pump (1d), a multi-way pipe (1f) having one end connected to the other end of the air supply pipe (1e), and a plurality of filter screens (1g) respectively fixed at the entrances of the remaining ends of the multi-way pipe (1f), are fixedly mounted on the top of the support top plate (82), wherein the end of the filter screen (1g) provided on the multi-way pipe (1f) extends from the discharge port (3) into the interior of the circular cylinder (2).

5. The rice bran meal particle cooling and conveying device according to claim 4, characterized in that: The multi-way pipe (1f) comprises an annular distribution part (1f1), a connection part (1f2) whose two ends are respectively connected to the distribution part (1f1) and the air delivery pipe (1e) and the two are connected, and a plurality of air suction main parts (1f3) whose one end is commonly connected to the distribution part (1f1) and connected to the inside of the distribution part (1f1); the distribution part (1f1) is located below the discharge port (3), and the air suction main part (1f3) on the distribution part (1f1) extends vertically from the discharge port (3) into the inside of the circular cylinder (2); and the filter screen (1g) is arranged at the upper entrance of the air suction main part (1f3).

6. The rice bran meal particle cooling and conveying device according to claim 5, characterized in that: The multi-way pipe (1f) also includes a plurality of air intake sub-sections (1f4) respectively fixedly connected to the side walls of all the air intake main sections (1f3) and connected to the interior of the air intake main sections (1f3); the air intake sub-sections (1f4) are fixedly passed through the side walls of the circular cylinder (2) and connected to the movable barrel (7) and the interior of the air intake main section (1f3); the filter (1g) is arranged at one end of the air intake sub-section (1f4) close to the movable barrel (7); and the shapes of the filter (1g) and the end portions of the air intake sub-section (1f4) are integrated with the shape of the outer wall of the circular cylinder (2).

7. A rice bran meal particle cooling and conveying device according to claim 6, characterized in that: The top of the circular cylinder (2) is in the form of a conical inclined surface, and a conical hopper (21) extending from the lower half of the conical inclined surface is fixedly arranged on the inner ring of the circular cylinder (2); the bottom opening of the conical hopper (21) is fixedly connected with a discharge pipe (22) extending out of the discharge port (3); the liquid discharge pipe (6), the air suction main part (1f3) and the air suction branch part (1f4) are located in the gap between the inner wall of the circular cylinder (2) and the outer walls of the conical hopper (21) and the discharge pipe (22); the discharge pipe (22) is located in the middle of the annular distribution part (1f1) and passes through the annular distribution part (1f1); the top end of the air suction main part (1f3) is fixedly passed through the wall of the conical hopper (21); and the shape of the filter screen (1g) at the end of the air suction main part (1f3) and the top end of the air suction main part (1f3) are integrated with the shape of the inner wall of the conical hopper (21).

8. The rice bran meal particle cooling and conveying device according to claim 2, characterized in that: It also includes a semi-circular plate 1 (1h) and a semi-circular plate 2 (1i) movable at the bottom of the support plate, and the lower ends of the semi-circular plate 1 (1h) and the semi-circular plate 2 (1i) extend into the barrel mouth of the fixed barrel body (1), the semi-circular plate 1 (1h), the semi-circular plate 2 (1i) and the fixed barrel body (1) are coaxial, and the inner diameter of the fixed barrel body (1) is greater than the outer diameter of the semi-circular plate 2 (1i), and the inner diameter of the semi-circular plate 2 (1i) is greater than the outer diameter of the semi-circular plate 1 (1h), and the bottom of the support top plate (82) is fixedly provided with an annular connecting plate (1j), and the semi-circular plate 1 (1h) or the semi-circular plate 2 (1i) and the annular connecting plate (1j) are coaxial. The annular connecting plate (1j) is provided with an annular guide groove 1 (1j1) and an annular guide groove 2 (1j2) with a T-shaped cross section at the bottom, the annular guide groove 1 (1j1) and the annular guide groove 2 (1j2) are coaxial, and the diameter of the annular guide groove 1 (1j1) is smaller than the diameter of the annular guide groove 2 (1j2), and the tops of the semicircular arc plate 1 (1h) and the semicircular arc plate 2 (1i) are respectively provided with a plurality of rollers (1i1) that roll on the annular guide groove 1 (1j1) and the annular guide groove 2 (1j2), and the semicircular arc plate 1 (1h) and the semicircular arc plate 2 (1i) are rotatably arranged with respect to the axis of the annular connecting plate (1j).

9. The rice bran meal particle cooling and conveying device according to claim 8, characterized in that: A handle (1i2) is fixedly arranged on the outer side wall of the semicircular plate one (1h) and the semicircular plate two (1i), respectively. The handle (1i2) is located in the middle of the semicircular plate one (1h) or the semicircular plate two (1i) and close to one side of the semicircular plate one (1h) or the semicircular plate two (1i).

10. The rice bran meal particle cooling and conveying device according to claim 8, characterized in that: The semicircular arc plate 1 (1h) and the semicircular arc plate 2 (1i) are made of transparent acrylic material.

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