Energy-saving efficient rapeseed oil residue forming machine

Abstract

The utility model relates to the field of solid waste treatment and renewable resource utilization discloses energy -efficient rapeseed oil residue forming machine, contains frame, forming cylinder, and the spiral blade of pitch of outer ring of rotating shaft in forming cylinder is decreasing along the feeding to the discharge direction, and frame is driven by drive element drive shaft rotation to transport extruded material, and the stirring assembly that is parallel with the shaft, staggered distribution is equipped on the spiral blade, and frame still installs the steam -liquid processing unit, and it can solve the defect of existing hydraulic equipment, and the steam -liquid unit does not need additional equipment and manual improvement rapeseed residue humidity, and prevents forming loose and cracks, and the stirring assembly spares the preprocessing and scatters step, and the pitch decreases cooperation stirring promotes material stress and heating uniformity, guarantees product density, and does not need additional manual or equipment, simplifies the process, improves efficiency, and reduces cost.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment and renewable resource utilization, specifically to an energy-saving and efficient rapeseed oil residue molding machine. Background Technology

[0002] In the oil processing industry, rapeseed processing produces a large amount of rapeseed residue, which is rich in combustible components and effective substances such as protein. Directly discarding it not only causes serious resource waste but also leads to environmental pollution. Processing rapeseed residue into shapes and using it as a product to achieve resource recycling has become an important trend in the industry. Rapeseed residue shaping technology can effectively reduce the volume of materials, improve the convenience of transportation and storage, and optimize its combustion efficiency or processing applicability. This aligns with the industrial policy requirements of environmental protection and resource recycling, and market demand continues to grow.

[0003] Existing rapeseed residue molding processes largely rely on hydraulic extrusion molding equipment, which presents the following technical problems: First, high-powder rapeseed residue is prone to loosening and cracking during molding, requiring additional manpower or equipment for humidification as a remedy. Second, densification can only be achieved through single extrusion, resulting in uneven density of the molded product, with a lack of effective improvement methods. Third, rapeseed residue is prone to clumping during molding, leading to uneven heating and stress on the material, requiring pretreatment equipment and manual labor to break up the material, increasing labor input and equipment purchase costs. These problems all require additional manual intervention or equipment investment to adjust in order to meet production standards, resulting in a cumbersome and inefficient production process, and significantly increasing overall production costs. Utility Model Content

[0004] The present invention aims to provide an energy-saving and efficient rapeseed oil residue forming machine to solve the problem that existing rapeseed oil residue extrusion forming equipment requires additional manpower and equipment for remedial purposes due to inherent defects.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an energy-saving and high-efficiency rapeseed oil residue molding machine, comprising a frame, a molding cylinder installed on the frame, an inlet and an outlet respectively provided at both ends of the molding cylinder, a rotating shaft rotatably arranged inside the molding cylinder, and spiral blades arranged on the outer ring of the rotating shaft, the pitch of the spiral blades decreasing from the inlet to the outlet; the frame is equipped with a drive component, which drives the rotating shaft to rotate, so as to transport the material from the inlet to the outlet through the spiral blades and complete the extrusion molding; a stirring component parallel to the rotating shaft is arranged on the spiral blades, and the stirring component and the spiral blades are staggered; the frame is equipped with a gas-liquid treatment unit, which is connected to the molding cylinder and is used to treat the process medium in the molding cylinder and supply the fluid medium into the molding cylinder.

[0006] The beneficial effects of this solution are as follows: It specifically addresses the core defects of existing hydraulic extrusion equipment: By supplying fluid medium to the forming cylinder through the vapor-liquid treatment unit, the humidity conditions of high-powder rapeseed residue can be improved without additional manual labor or humidification equipment, preventing looseness and cracking during forming; The staggered distribution of the stirring components and spiral blades can directly break up material clumps during the conveying and extrusion process, eliminating the need for additional pretreatment equipment and manual breaking-up steps; The decreasing pitch design of the spiral blades enables progressive extrusion of materials, which, together with the stirring components, improves the uniformity of material stress and heating, ensuring uniform density of the formed product without additional improvement methods; The overall solution addresses the pain points of existing technologies through the integrated structure of the equipment itself, without the need for additional manual intervention or equipment investment, simplifying the production process, significantly improving production efficiency, and significantly reducing overall production costs.

[0007] Preferably, as an improvement, the stirring assembly includes at least one stirring rod and several stirring pins. The stirring rod is connected through the spiral blades and is parallel to the rotation axis. The stirring pins are fixed vertically to the stirring rod, and the several stirring pins are distributed at intervals along the length of the stirring rod and are staggered with the spiral blades.

[0008] The beneficial effects are as follows: the stirring rod is set parallel to the rotating shaft, and with the stirring nails distributed at intervals along the length, the material can be dispersed and stirred in all directions to avoid local accumulation. The staggered layout of the stirring nails and spiral blades further improves the uniformity of material mixing, ensures consistent force during extrusion, and improves the density uniformity of the molded product.

[0009] Preferably, as an improvement, the vapor-liquid treatment unit is a condensate vapor chamber, which is fixedly installed at the bottom of the frame corresponding to the bottom of the forming cylinder. The input end of the condensate vapor chamber is connected to the forming cylinder to collect the process liquid accumulated in the forming cylinder; the output end of the condensate vapor chamber is connected to the forming cylinder to supply steam into the forming cylinder.

[0010] The beneficial effects are as follows: the water-diffusing steam pack is fixed at the bottom of the molding cylinder, which efficiently collects the process liquid by gravity, avoiding the liquid from affecting the material molding; at the same time, the steam is supplied in a directional manner, which can regulate the humidity and temperature of the material, reduce the extrusion resistance, reduce energy consumption, and the gas-liquid separation design ensures a stable molding environment and improves product consistency.

[0011] Preferably, as an improvement, the forming cylinder is provided with several sets of pipe fittings at axial intervals, and the pipe fittings are connected to the interior of the forming cylinder. The condensate vapor manifold is connected to each set of pipe fittings one by one through a connecting pipe. The pipe fittings are provided with air valves, which are used to control the connection and disconnection between the condensate vapor manifold and the forming cylinder.

[0012] The beneficial effects are: the pipe fittings enable gas-liquid exchange in the forming cylinder in different zones, and the air valves can independently control the connection status of each zone to adapt to the gas-liquid requirements of different pressing stages; the on-demand switching of the air valves can stabilize the pressure inside the cylinder, reduce ineffective energy consumption, and facilitate maintenance and cleaning, thereby improving the flexibility and reliability of equipment operation.

[0013] Preferably, as an improvement, the forming cylinder is provided with a long pressing chamber, an intermediate pressing chamber and a short pressing chamber arranged sequentially along the axial direction. The spiral blades in the long pressing chamber adopt a multi-stage decreasing pitch, while the intermediate pressing chamber and the short pressing chamber are both set with equal pitch.

[0014] The beneficial effects are as follows: the multi-stage decreasing screw pitch of the long pressing chamber enables the material to be gradually pressurized, and the screw pitch design of the middle and short pressing chambers ensures stable pressing pressure, avoids material jamming or uneven forming caused by local pressure fluctuations, and improves the overall pressing efficiency and equipment stability.

[0015] Preferably, as an improvement, the long section of the pressing chamber is located near the feed inlet, the short section of the pressing chamber is located near the discharge outlet, and the intermediate pressing chamber is located between the long section and the short section, with the minimum pitch of the long section pressing chamber being greater than the pitch of the intermediate pressing chamber being greater than the pitch of the short section pressing chamber.

[0016] Preferably, as an improvement, the driving component is a motor, which is fixedly mounted on the frame. The output end of the motor is connected to the rotating shaft for driving the rotating shaft to drive the spiral blades to rotate synchronously.

[0017] Preferably, as an improvement, at least one of the stirring nails has a temperature measuring instrument installed inside.

[0018] The beneficial effects are: real-time monitoring of temperature changes during material extrusion provides data support for adjusting process parameters. Attached Figure Description

[0019] Figure 1 This is a front view of an embodiment of the present utility model; Figure 2 This is a test diagram of an embodiment of the present utility model; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation methods: The reference numerals in the accompanying drawings include: frame 1, motor 11, V-belt pulley 111, condensate steam manifold 12, forming cylinder 2, feed inlet 21, discharge outlet 22, rotating shaft 23, spiral blade 231, stirring rod 232, stirring nail 2321, pipe fitting 24, air valve 241, condensate drain pipe 242, steam distribution pipe 243, long section pressing chamber 25, first compression section 251, second compression section 252, third compression section 253, intermediate pressing chamber 26, short section pressing chamber 27, V-belt pulley 28.

[0021] Example like Figures 1-3 The energy-efficient rapeseed oil residue molding machine shown includes a frame 1, on which a molding cylinder 2 is installed. The molding cylinder 2 is horizontally arranged, and an inlet 21 and an outlet 22 are respectively provided on the outer wall near both ends of the molding cylinder 2. The inlet 21 is used to introduce rapeseed oil residue material, and the outlet 22 is used to output dense molded products. A rotating shaft 23 is axially rotatable inside the molding cylinder 2. The rotating shaft 23 is coaxially arranged with the molding cylinder 2, and bearings are provided between the two ends of the rotating shaft 23 and the molding cylinder 2. Spiral blades 231 are fixedly arranged on the outer ring of the rotating shaft 23. A stirring assembly is arranged on the spiral blades 231. The stirring assembly is parallel to the rotating shaft 23 and staggered to avoid interference with the movement of the spiral blades 231. Specifically, the stirring assembly includes a stirring rod 232 and several stirring nails 2321. The stirring rod 232 passes through and is welded to the spiral blades 231, and the stirring nails 2321 are vertically welded to the stirring rod 232. The stirring rods 232 and the stirring nails 2321 closest to the discharge port 22 are spaced apart. A temperature measuring instrument is installed inside the stirring nail 2321 to monitor the temperature parameters of the material extrusion process in real time. A drive platform is set at the end of the frame 1 corresponding to the end of the forming cylinder 2. A motor 11 is installed on the drive platform. A V-belt pulley 111 is coaxially connected to the output end of the motor 11. A V-belt pulley 28 is rotatably set at the end of the forming cylinder 2. The rotating shaft 23 is coaxially set with the V-belt pulley 28 at the end of the forming cylinder 2. The V-belt pulleys at the end of the motor 11 and the end of the forming cylinder 2 are connected by a V-belt drive. A protective cover is set at the end of the forming cylinder 2 corresponding to the V-belt pulley 28. After the motor 11 is started, the power can be accurately transmitted to the rotating shaft 23, which drives the rotating shaft 23 to drive the spiral blades 231 and the stirring components to rotate synchronously, providing stable power support for the material to be conveyed, stirred and dispersed and progressively extruded from the feed port 21 to the discharge port 22.

[0022] A vapor-liquid treatment unit is fixedly installed at the bottom of the forming cylinder 2 corresponding to the frame 1. The vapor-liquid treatment unit is a condensate vapor manifold 12. The condensate vapor manifold 12 is connected to the forming cylinder 2 through a pipe. Its input end is used to collect the process liquid precipitated during the material extrusion process in the forming cylinder 2, and its output end is used to supply steam into the forming cylinder 2 to regulate the temperature and humidity of the material. Several sets of pipe fittings 24 are axially spaced on the forming cylinder 2. Each set of pipe fittings 24 is connected to the inside of the forming cylinder 2. Each set of pipe fittings 24 includes a steam distribution pipe 243 symmetrically arranged on both sides of the forming cylinder 2 and a condensate pipe 242 vertically arranged at the bottom of the forming cylinder 2. The condensate vapor manifold 12 is connected to all the pipes of each set of pipe fittings 24 one by one through a connecting pipe. The input end of the condensate vapor manifold 12 is connected to the condensate pipe 242, and the output end is connected to the steam distribution pipe 243. A gas valve 241 is installed on the pipe fitting 24. The gas valve 241 controls the connection or disconnection between the condensate vapor manifold 12 and the forming cylinder 2.

[0023] Inside the forming cylinder 2, a long pressing chamber 25, a middle pressing chamber 26, and a short pressing chamber 27 are arranged sequentially along the axial direction. The long pressing chamber 25 is located near the feed inlet 21, the middle pressing chamber 26 is located between the long pressing chamber 25 and the short pressing chamber 27, and the short pressing chamber 27 is located near the discharge outlet 22. The spiral blades 231 inside the long pressing chamber 25 adopt a three-stage decreasing pitch design, including a first compression stage 251, a second compression stage 252, and a third compression stage 253. The pitch of the three decreasing compression stages is: first compression stage 251 > second compression stage 252 > third compression stage 253. 2> In the third compression section 253, the spiral blades 231 in the intermediate pressing chamber 26 and the short pressing chamber 27 are all set with equal pitch, thus satisfying the relationship that the pitch of the third compression section 253 > the pitch of the intermediate pressing chamber 26 > the pitch of the short pressing chamber 27. A continuous and stable pressure gradient is constructed through segmented pitch design. The pitch of the spiral blades 231 is set to decrease along the direction from the feed inlet 21 to the discharge outlet 22. By gradually reducing the pitch, a progressive extrusion space is formed, so that the pressure on the material during the conveying process continues to increase, thereby achieving dense molding.

[0024] The specific implementation process is as follows: Motor 11 drives rotating shaft 23 via V-belt drive, causing spiral blades 231 to rotate synchronously with the mixing assembly. Rapeseed oil residue enters molding cylinder 2 through feed inlet 21. The mixing assembly disperses the material to prevent clumping, and the end mixing nail 2321 has a built-in instrument to monitor the temperature in real time. The spiral blades 231 decrease in pitch from feed inlet 21 to discharge outlet 22, creating a continuous pressure gradient. The material is gradually densified and molded through pre-compression, main pressure, and ultra-high pressure. During the process, condensate steam drum 12 collects process liquid through condensate pipe 242 and supplies steam as needed through steam distribution pipe 243 to regulate temperature and humidity. The designed working steam pressure (gauge pressure) is 0.6 MPa, and the material working temperature is 110 degrees Celsius. Moist heat steam is used to shear and soften the material, thereby achieving the molding purpose.

[0025] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An energy-saving and high-efficiency rapeseed oil residue forming machine, characterized in that: The system includes a frame, a forming cylinder mounted on the frame, and inlets and outlets at both ends of the forming cylinder. A rotating shaft is rotatably mounted inside the forming cylinder, and helical blades are arranged on the outer ring of the rotating shaft. The pitch of the helical blades decreases from the inlet to the outlet. The frame is equipped with a drive unit to drive the rotating shaft to rotate, so as to transport the material from the inlet to the outlet through the helical blades and complete the extrusion molding. A stirring component parallel to the rotating shaft is arranged on the helical blades, and the stirring component and the helical blades are staggered. The frame is equipped with a vapor-liquid treatment unit, which is connected to the forming cylinder and is used to treat the process medium in the forming cylinder and supply fluid medium into the forming cylinder.

2. The molding machine according to claim 1, characterized in that: The stirring assembly includes at least one stirring rod and several stirring pins. The stirring rod is connected through the spiral blade and is parallel to the rotation axis. The stirring pins are fixed vertically to the stirring rod. The stirring pins are distributed at intervals along the length of the stirring rod and are staggered with the spiral blade.

3. The molding machine according to claim 1, characterized in that: The vapor-liquid treatment unit is a condensate vapor chamber, which is fixedly installed at the bottom of the forming cylinder on the frame. The input end of the condensate vapor chamber is connected to the forming cylinder to collect the process liquid inside the forming cylinder; the output end of the condensate vapor chamber is connected to the forming cylinder to supply steam into the forming cylinder.

4. The molding machine according to claim 3, characterized in that: The forming cylinder is axially spaced with several sets of pipe fittings, and the pipe fittings are connected to the inside of the forming cylinder. The condensate vapor chamber is connected to each set of pipe fittings through connecting pipes. The pipe fittings are equipped with air valves, which are used to control the connection and disconnection between the condensate vapor chamber and the forming cylinder.

5. The molding machine according to claim 1, characterized in that: The forming cylinder is arranged axially with a long pressing chamber, an intermediate pressing chamber and a short pressing chamber. The spiral blades in the long pressing chamber adopt a multi-stage decreasing pitch, while the intermediate pressing chamber and the short pressing chamber are set with equal pitch.

6. The molding machine according to claim 5, characterized in that: The long pressing chamber is located near the feed inlet, the short pressing chamber is located near the discharge outlet, and the middle pressing chamber is located between the long pressing chamber and the short pressing chamber. The minimum pitch of the long pressing chamber is greater than the pitch of the middle pressing chamber, which is greater than the pitch of the short pressing chamber.

7. The molding machine according to claim 1, characterized in that: The driving component is a motor, which is fixedly mounted on the frame. The output end of the motor is connected to the rotating shaft for driving the rotating shaft to drive the spiral blades to rotate synchronously.

8. The molding machine according to claim 2, characterized in that: At least one of the stirring nails has a temperature measuring instrument installed inside.

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