Novel energy-saving particle forming equipment

Abstract

The invention discloses novel energy-saving type particle forming equipment, and relates to the technical field of forming equipment. The device comprises a machine base, a permanent magnet stator is installed in the machine base, a permanent magnet rotor is installed in the permanent magnet stator, a main machine disc is installed at one end of the permanent magnet rotor, a pressing roller is installed in the main machine disc, and a circular mold is installed at the top of the machine base. A permanent magnet motor direct drive structure is adopted to replace a traditional combination of a three-phase asynchronous motor and a speed reducer, the rotor is directly connected with the main machine disc to achieve direct power transmission, energy loss in the mechanical transmission process is remarkably reduced, the transmission efficiency is improved, heat generated by the permanent magnet stator and the rotor is exported in an accelerated mode through the spiral circulation pieces, and the energy consumption is reduced. By combining the flow path design of the cooling water tank, the contact area of the cooling liquid and the heating component is increased, the working temperature of the motor is effectively reduced, the service life of equipment is prolonged, and the problem of low energy efficiency caused by friction loss of a speed reducer of traditional equipment is solved.

Description

Technical Field

[0001] This invention belongs to the field of molding equipment technology, and in particular relates to a new type of energy-saving pellet molding equipment. Background Technology

[0002] Biomass energy, as the most promising renewable energy source, has become my country's fourth largest energy source after coal, oil, and natural gas. Promoting the resource utilization of abundant and environmentally friendly biomass materials is an effective technological approach to achieving "dual carbon" reduction (carbon reduction and emission reduction), and is also an important task for my country's energy conservation, emission reduction, and environmental protection. This aligns with the current demands for environmental protection, energy conservation, and a low-carbon economy. However, the biomass pelletizing equipment currently used in the market is largely similar, consuming a lot of energy and having low production capacity.

[0003] Biomass pellet forming equipment is a key piece of equipment for the efficient utilization of biomass energy. The energy efficiency of its drive system directly affects the economics of production. Traditional equipment generally adopts a transmission scheme of three-phase asynchronous motor with reducer. This structure has obvious energy efficiency shortcomings. On the one hand, the mechanical friction in the gear transmission process of the reducer will lead to energy loss and reduce the overall transmission efficiency of the system. On the other hand, the extra weight and space occupation brought by multi-stage transmission further increases the energy consumption burden. This transmission method not only causes considerable waste of electrical energy, but also accelerates the aging of components due to the conversion of energy loss into heat.

[0004] To address these issues, we provide a novel energy-saving pellet forming equipment. Summary of the Invention

[0005] The purpose of this invention is to provide a new type of energy-saving pellet forming equipment. By combining the cooling component and the pressurizing component, it solves the problem of high energy consumption in the existing biomass pellet forming equipment that uses a three-phase asynchronous motor with a reducer for transmission.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0007] This invention relates to a novel energy-saving pellet forming equipment, comprising a base, inside which a permanent magnet stator is installed, and inside the permanent magnet stator is a permanent magnet rotor. A main disk is installed at one end of the permanent magnet rotor, and a pressure roller is installed inside the main disk. A ring die is installed on the top of the base. A cooling assembly is provided inside the base, comprising a cooling water tank formed inside the base, a cooling shell installed on the surface of the permanent magnet stator, and circulation blades installed inside the cooling shell. The cooling assembly accelerates the removal of heat generated by the permanent magnet stator and rotor. A pressurization assembly is provided on one side of the base, comprising a connecting pipe connected to one side of the base, a conversion shell connected to one side of the connecting pipe, a rotating shaft movably connected inside the conversion shell, and turbine blades installed on both sides of the rotating shaft. The pressurization assembly accelerates the circulation speed of the coolant.

[0008] The present invention is further configured such that the pressurization component includes a pressurization tank and a delivery tank opened inside the conversion shell, a delivery pipe connected to the top of the delivery tank, and a drain pipe connected to the bottom of the delivery tank.

[0009] The present invention is further configured such that the other end of the infusion tube is connected to the machine base, and the other end of the drain tube is connected to a delivery pump.

[0010] The invention is further configured such that the inlet of the other end of the delivery pump is connected to a cooling tank via a pipe, and a cooler is installed on one side of the cooling tank.

[0011] The invention is further configured such that a return pipe is connected to the bottom of the pressurization tank, and the other end of the return pipe is connected to the cooling tank.

[0012] The present invention is further configured such that a motor temperature controller is installed inside the base and a bearing temperature controller is installed inside the main chassis.

[0013] The present invention is further configured such that a feed pipe is installed on one side of the ring die and a discharge pipe is installed on one side of the machine base.

[0014] The present invention is further configured such that a first solenoid valve is sleeved on the surface of the connecting tube, and a second solenoid valve is sleeved on the surface of the infusion tube.

[0015] The invention is further configured such that the circulation plate is a spiral design and the surface of the circulation plate is fixedly connected to the inner wall of the cooling water tank.

[0016] The invention is further configured such that the surface of the rotating shaft is movably connected to the inner wall of the conversion housing via a bearing, and the rotation directions of the two sets of turbine blades are set in opposite directions.

[0017] The present invention has the following beneficial effects.

[0018] 1. This invention uses a permanent magnet motor direct drive structure to replace the traditional three-phase asynchronous motor and reducer combination. Power is directly transmitted through the rotor directly connected to the main unit, which significantly reduces energy loss in the mechanical transmission process and improves transmission efficiency. The heat generated by the permanent magnet stator and rotor is accelerated to be discharged through the spiral circulation plate. Combined with the flow path design of the cooling water tank, the contact area between the coolant and the heat-generating components is increased, which effectively reduces the motor operating temperature, extends the service life of the equipment, and solves the problem of low energy efficiency caused by friction loss of the reducer in traditional equipment.

[0019] 2. This invention forms a circulating pressurization loop through two sets of counter-rotating turbine blades. By utilizing the synergistic effect of the delivery pump and the cooler, the circulation speed of the coolant is increased, resulting in improved cooling efficiency compared to natural cooling. The equipment integrates a motor temperature controller and a bearing temperature controller, which can monitor the temperature of key components in real time and trigger the cooling system to prevent overheating damage. The solenoid valve precisely controls the flow direction of the coolant. Combined with the closed-loop design of the return pipe and the delivery tank, dynamic balance of the coolant is achieved, solving the problem of frequent shutdowns caused by insufficient cooling efficiency of traditional equipment and significantly improving production continuity and stability.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 This is a three-dimensional view of a new type of energy-saving pellet forming equipment.

[0023] Figure 2 This is a structural cross-sectional view of a new type of energy-saving pellet forming equipment.

[0024] Figure 3 This is a three-dimensional view of the base of a new type of energy-saving pellet forming equipment.

[0025] Figure 4 This is a cross-sectional view of the base of a new type of energy-saving pellet forming equipment.

[0026] Figure 5 This is a three-dimensional view of the circulating sheet in a new type of energy-saving pellet forming equipment.

[0027] Figure 6 This is a cross-sectional view of the conversion shell in a novel energy-saving pellet forming equipment.

[0028] In the attached diagram: 1. Machine base; 2. Permanent magnet stator; 3. Permanent magnet rotor; 4. Main machine disk; 5. Pressure roller; 6. Ring die; 7. Cooling assembly; 701. Cooling water tank; 702. Cooling shell; 703. Circulation plate; 8. Pressurization assembly; 801. Connecting pipe; 802. Conversion shell; 803. Rotating shaft; 804. Turbine blade; 805. Pressurization tank; 806. Conveying tank; 807. Infusion pipe; 808. Drain pipe; 809. Conveying pump; 9. Cooling tank; 10. Return pipe; 11. Motor temperature controller; 12. Bearing temperature controller; 13. Feed pipe; 14. Discharge pipe; 15. First solenoid valve; 16. Second solenoid valve. Detailed Implementation

[0029] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Example 1 Please see Figures 1-6 This invention relates to a novel energy-saving pellet forming equipment, comprising a base 1, a permanent magnet stator 2 installed inside the base 1, a permanent magnet rotor 3 installed inside the permanent magnet stator 2, a main disk 4 installed at one end of the permanent magnet rotor 3, a pressure roller 5 installed inside the main disk 4, and a ring die 6 installed on the top of the base 1; a cooling assembly 7 is provided inside the base 1, the cooling assembly 7 includes a cooling water tank 701 opened inside the base 1, a cooling shell 702 installed on the surface of the permanent magnet stator 2, and a circulation plate 703 installed inside the cooling shell 702, which accelerates the discharge of heat generated by the permanent magnet stator 2 and the permanent magnet rotor 3; a pressurizing assembly 8 is provided on one side of the base 1, the pressurizing assembly 8 includes a connecting pipe 801 connected to one side of the base 1, a conversion shell 802 connected to one side of the connecting pipe 801, a rotating shaft 803 movably connected inside the conversion shell 802, and turbine blades 804 installed on both sides of the rotating shaft 803, which accelerates the circulation speed of the coolant.

[0031] Specifically: The pellet forming equipment uses a permanent magnet motor with direct drive, power 280KW. The permanent magnet rotor 3 is directly connected to the main machine disk 4, and the power is directly transmitted to the load pressure roller 5, which extrudes the material with the ring die 6. The permanent magnet motor has low speed and high torque output, with an unloaded current of about 20A. The unloaded current of a three-phase asynchronous motor of the same power is about 180A. The unloaded current is significantly lower, resulting in significant energy savings. In terms of transmission efficiency, the direct drive of the permanent magnet motor improves the transmission efficiency and reduces the energy loss caused by the reduced transmission efficiency of a common three-phase asynchronous motor through a reducer. The cooling water tank 701 is opened inside the machine base 1, and the circulation plate 703 is installed inside the cooling shell 702. Its outer surface penetrates the cooling shell 702 and is fixedly connected to the inner wall of the cooling water tank 701. The circulation plate 703 is made of thermally conductive metal, which can conduct heat generated by the permanent magnet stator 2 and permanent magnet rotor 3, increasing the heat dissipation area. The circulation plate 703 adopts a spiral design, which can divide the cooling water tank 701 to form a flow channel and increase the flow path of the coolant.

[0032] Example 2 Please see Figures 1-6 Based on Embodiment 1, the pressurization assembly 8 further includes a pressurization tank 805 and a conveying tank 806 opened inside the conversion shell 802, a liquid inlet pipe 807 connected to the top of the conveying tank 806, a drain pipe 808 connected to the bottom of the conveying tank 806, the other end of the liquid inlet pipe 807 connected to the base 1, the other end of the drain pipe 808 connected to a conveying pump 809, the other end of the conveying pump 809 connected to a cooling box 9 through a pipe, a cooler installed on one side of the cooling box 9, a return pipe 10 connected to the bottom of the pressurization tank 805, the other end of the return pipe 10 connected to the cooling box 9, a motor temperature controller 11 installed inside the base 1, and a bearing temperature controller 12 installed inside the main unit 4.

[0033] Specifically: Connecting pipe 801 is connected to one side of the base 1 and communicates with the internal cooling water tank 701. Connecting pipe 801 serves as the drain pipe for coolant. Pressurization tank 805 connects connecting pipe 801 and return pipe 10, and is used to discharge coolant back into cooling tank 9. Pressurization tank 805 connects delivery pipe 807 and drain pipe 808, and is used to discharge low-temperature coolant into cooling water tank 701 to achieve circulation. There are two sets of turbine blades 804, distributed inside pressurization tank 805 and delivery tank 806. When coolant flows inside delivery tank 806, it can drive turbine blades 804 to rotate. The rotating shaft 803 drives another turbine blade 804 to rotate, discharging coolant from inside pressurization tank 805 and increasing the flow speed of coolant. Delivery pump 809 is used to provide power for coolant delivery.

[0034] Example 3 Please see Figures 1-6Based on Embodiments 1 and 2, a feed pipe 13 is installed on one side of the ring die 6, a discharge pipe 14 is installed on one side of the base 1, a first solenoid valve 15 is sleeved on the surface of the connecting pipe 801, a second solenoid valve 16 is sleeved on the surface of the infusion pipe 807, the circulation plate 703 is spirally designed, the surface of the circulation plate 703 is fixedly connected to the inner wall of the cooling water tank 701, the surface of the rotating shaft 803 is movably connected to the inner wall of the conversion shell 802 through a bearing, and the rotation directions of the two sets of turbine blades 804 are set in opposite directions.

[0035] Specifically: The cooling box 9 is equipped with a refrigerator. The compressor in the refrigerator compresses the gaseous refrigerant into a high-temperature and high-pressure gas, which enters the condenser to dissipate heat and liquefy. The liquid refrigerant enters the evaporator after being depressurized by the throttling device. In the evaporator, it absorbs heat from the coolant and vaporizes, which lowers the temperature of the coolant. The vaporized refrigerant is then sucked into the compressor. This cycle achieves continuous cooling, which is a mature existing technology. The motor temperature controller 11 and the bearing temperature controller 12 both monitor the temperature in real time through temperature sensors (thermometers). When the temperature exceeds the set threshold, the control circuit is triggered to start the cooling component 7 to prevent the motor or bearing from being damaged due to overheating, thus achieving precise temperature protection. The first solenoid valve 15 can control the opening and closing of the drain pipe 808, and the second solenoid valve 16 can control the opening and closing of the delivery pipe 807.

[0036] The working principle of this invention is as follows: After the motor is started by frequency conversion, the permanent magnet rotor 3 rotates, which drives the pressure roller 5 on the main disk 4 to rotate. The raw material enters from the feed port and falls between the ring die 6 and the pressure roller 5. During the rotation of the pressure roller 5, the material is carried into the pressure roller 5 and the ring die 6 for direct extrusion. The extruded and shaped particles are discharged from the discharge port.

[0037] When the motor temperature controller 11 detects that the internal temperature of the base 1 is higher than the set value, it can start the cooler and the delivery pump 809. The cooler further cools the coolant in the cooling tank 9, and the delivery pump 809 draws out the coolant in the cooling tank 9 and injects it into the delivery tank 806 through the drain pipe 808. It is then discharged into the cooling water tank 701 through the delivery pipe 807. The circulation plate 703 adopts a spiral design, which can divide the cooling water tank 701 to form a flow channel and increase the flow path of the coolant. At the same time, the circulation plate 703 can also serve as a heat conduction component to conduct the heat generated by the permanent magnet stator 2 and the permanent magnet rotor 3, increase the heat dissipation area, and improve the contact area with the coolant, thereby further improving the heat dissipation effect.

[0038] There are two sets of turbine blades 804, which are distributed inside the booster tank 805 and the delivery tank 806. When the coolant flows inside the delivery tank 806, it can drive the turbine blades 804 to rotate. The rotating shaft 803 drives the other set of turbine blades 804 to rotate, which discharges the coolant inside the booster tank 805, thereby increasing the flow speed of the coolant and further improving the heat dissipation effect.

[0039] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A new energy-saving pelletizing device, comprising a base (1), characterized in that: The machine base (1) is internally provided with a permanent magnet stator (2), the permanent magnet stator (2) is internally provided with a permanent magnet rotor (3), one end of the permanent magnet rotor (3) is provided with a main machine disc (4), the main machine disc (4) is internally provided with a pressure roller (5), the machine base (1) is provided with a ring mold (6) on the top; The machine base (1) is internally provided with a cooling assembly (7), the cooling assembly (7) comprises a cooling water tank (701) opened in the machine base (1), a cooling shell (702) mounted on the surface of the permanent magnet stator (2), a circulating piece (703) mounted in the cooling shell (702), and the cooling assembly (7) accelerates the heat generated by the permanent magnet stator (2) and the permanent magnet rotor (3) to be discharged; The machine base (1) is provided with a booster assembly (8) on one side, the booster assembly (8) comprises a connecting pipe (801) communicated with one side of the machine base (1), a conversion shell (802) communicated with one side of the connecting pipe (801), a rotating shaft (803) movably connected in the conversion shell (802), turbine blades (804) mounted on both sides of the rotating shaft (803), and the booster assembly (8) accelerates the circulating speed of the cooling liquid.

2. A novel energy efficient pellet forming apparatus as claimed in claim 1, wherein: The booster assembly (8) further comprises a booster groove (805) and a conveying groove (806) opened in the conversion shell (802), a liquid delivery pipe (807) communicated with the top of the conveying groove (806), and a liquid discharge pipe (808) communicated with the bottom of the conveying groove (806).

3. A novel energy efficient pellet forming apparatus as claimed in claim 2, wherein: The other end of the liquid delivery pipe (807) is communicated with the machine base (1), and the other end of the liquid discharge pipe (808) is communicated with a conveying pump (809).

4. A novel energy efficient pellet forming apparatus as claimed in claim 3, wherein: The other end of the water inlet of the conveying pump (809) is communicated with a cooling box (9) through a pipeline, and the cooling box (9) is provided with a refrigerator on one side.

5. A novel energy efficient pellet forming apparatus as claimed in claim 2, wherein: The bottom of the booster groove (805) is communicated with a liquid return pipe (10), and the other end of the liquid return pipe (10) is communicated with the cooling box (9).

6. A novel energy efficient pellet forming apparatus as claimed in claim 1, wherein: The machine base (1) is internally provided with a motor temperature controller (11), and the main machine disc (4) is internally provided with a bearing temperature controller (12).

7. A novel energy efficient pellet forming apparatus as claimed in claim 1, wherein: The ring mold (6) is provided with a feeding pipe (13) on one side, and the machine base (1) is provided with a discharging pipe (14) on one side.

8. A novel energy efficient pellet forming apparatus as claimed in claim 2, wherein: The surface of the connecting pipe (801) is provided with a first electromagnetic valve (15), and the surface of the liquid delivery pipe (807) is provided with a second electromagnetic valve (16).

9. A novel energy efficient pellet forming apparatus as claimed in claim 1, wherein: The circulating piece (703) is designed in a spiral shape, and the surface of the circulating piece (703) is fixedly connected with the inner wall of the cooling water tank (701).

10. A novel energy efficient pellet forming apparatus as claimed in claim 1, wherein: The surface of the rotating shaft (803) is movably connected with the inner wall of the conversion shell (802) through a bearing, and the rotating directions of the two groups of turbine blades (804) are oppositely arranged.

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