Block material vertical conveying energy storage power station

Abstract

The invention relates to a gravity energy storage equipment process which is composed of a block material vertical conveyor and a generator motor, and a machine head spindle of the conveyor is connected with the generator motor. The device is vertically installed in a space with a certain height difference, the machine head part is installed on the upper platform, the machine tail part is installed on the lower platform, and the machine body is installed in the middle space of the upper platform and the lower platform. When the blocky materials are lifted, the blocky materials drive the conveyor to lift the materials. The device is composed of a machine head part, a lifting chain, a conveying plate, a machine tail part, a machine body, a feeding port, a discharging port and the like. The upper part and the lower part of the machine body are respectively provided with a feed port and a discharge port, the feed port is used for feeding materials from a stock bin through a feeder, and the discharge port is connected with a conveyor to store blocky materials into the stock bin.

Description

Technical Field

[0001] The invention patent is a gravity energy storage equipment process, which consists of a vertical conveyor for granular materials and a generator motor. It involves a vertical conveyor for block materials, which to a certain extent solves the problems of weak operation continuity, low installed capacity utilization, high construction cost and long payback period of current gravity energy storage (except pumped storage). Background Art

[0002] At present, the technology of generator motors is very mature and is well applied to pumped storage power stations. Pumped storage is a mode of regulating power systems with mature technology and high efficiency, but the construction of pumped storage power stations is subject to greater constraints from external factors such as site selection and environmental impact. Solid gravity energy storage mainly relies on structures such as mountains, underground shafts, and artificial structures. Electric energy is converted into solid potential energy through electric motors, and the gravity blocks are lifted to the corresponding height and aligned. When the power system needs electricity, the gravity blocks are put down to drive the bearing system to convert potential energy into rotor kinetic energy, and then the rotor cuts the magnetic lines of force to generate electricity. Unlike pumped storage, which can release water by opening the gate, gravity energy storage requires clear instructions for each gravity block before it can start the correct movement, and it also needs to adjust its output in real time to respond to the needs of the power system. Therefore, the number and speed of simultaneous lifting and lowering are different at every moment. Only when the output is uniform can regular rise and fall be achieved, and it cannot be continuous when generating electricity or storing energy.

[0003] The terrain with a certain height difference and the vertical shafts of a large number of abandoned or soon-to-be-abandoned underground mines provide certain favorable conditions for the vertical transportation and energy storage of block and granular materials. According to official data from the State Administration of Work Safety, by the end of 2020, my country had withdrawn from about 5,500 coal mines and eliminated and closed 6,000 non-coal mines. Taking Shandong as an example, most of these mines have vertical shafts with heights ranging from 500 to 1,000 meters, and there are coal bunkers built for storing granular materials, creating favorable conditions for the conversion of potential energy into electrical energy. Today, the technology of generator motors is very mature, and the lifting chain The minimum breaking load reaches 1460kN. Considering the "30·60" dual carbon background, with the continuous expansion of the scale of the power grid, especially the rapid development of new energy, higher requirements are put forward for the optimal configuration of the power supply structure. The necessity of planning and building energy storage power supplies is becoming increasingly apparent. Summary of the invention

[0004] In order to overcome the unfavorable conditions that solid gravity energy storage cannot maintain continuous power generation or energy storage state, the gravity block discharge is relatively complicated, and the construction cost is high, the present invention provides a vertical conveyor for block materials (hereinafter referred to as conveyor), which can maintain continuous power generation or energy storage state, and the block materials can be obtained locally, such as mine gangue materials.

[0005] The technical solutions adopted to solve its technical problems are as follows:

[0006] The main shaft of the conveyor head is connected to the generator motor and installed on the upper horizontal head frame platform (or well tower). The fuselage is installed on the slope of the hillside or in the vertical shaft. The tail of the machine is installed on the lower horizontal platform through the tail bearing frame. The upper and lower levels are each equipped with a silo and a belt conveyor and a feeder to realize the transmission of block materials. The block materials are lowered through the conveyor to drive the generator motor to generate electricity. When the block materials are lifted, the generator motor drives the conveyor to lift the block materials.

[0007] This device consists of a machine head, a lifting chain, a conveying plate, a tail, a machine body, a feed port, a discharge port, etc. The machine head consists of a sprocket, a main shaft, a brake device, etc. The machine head is installed on the upper platform through a bearing seat and a brake seat. The tail consists of a sprocket, a main shaft, a tail bearing seat, etc. The tail is installed on the lower platform through a tail bearing frame. The machine body is composed of steel structural parts. The machine body is installed between the upper and lower platforms. The machine head and tail are closed, and the middle fuselage cross-section is rectangular. The lifting chain is connected to the conveying plate through an open connector at a certain distance. The conveying plate runs in the machine body. The connection part between the conveying plate and the lifting chain runs in the steel plate slides on both sides of the machine body, and the lifting chain runs outside the machine body. There is a certain gap between the head and tail sprockets and the machine body for easy operation; the steel plate on the upper part of the machine body (on the upper side of the discharge port) is parallel to the main axis and close to the main axis with a certain slope, and the upper part crosses the vertical symmetry line of the circular section of the head main axis, so that the block materials on the transport plate can be completely unloaded during transportation. There is an inlet and outlet at the upper and lower parts of the machine body. The inlet is fed by the silo through the feeder, and the discharge port is connected to the conveyor to store the block materials in the silo. The size of the block materials is slightly larger than the distance between the transport plate and the inner side of the machine body, and also larger than the distance between the connection part of the conveyor plate and the lifting chain and the steel plate slideways on both sides of the machine body to prevent the block materials from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is the front view of the vertical conveyor for bulk materials.

[0009] Figure 2 This is the left view of the vertical conveyor for bulk materials.

[0010] In the figure, 1. lifting chain, 2. conveyor plate, 3. machine body, 4. feed port, 5. discharge port, 6. head sprocket, 7. head main shaft, 8. braking device, 9. tail sprocket, 10. tail main shaft, 11. generator motor. DETAILED DESCRIPTION

[0011] When generating electricity, the device starts, and the block materials in the upper silo enter the fuselage through the conveyor belt conveyor, feeder, and upper side feed port. Under the action of gravity of the block materials, the conveyor plate and lifting chain drive the main shaft and the generator motor connected thereto to rotate to generate electricity, and the block materials go to the lower discharge port and are poured into the lower silo through the belt conveyor; when storing energy, the device starts, and the block materials in the lower silo enter the fuselage through the conveyor belt conveyor, feeder, and lower side feed port. Under the action of the generator motor driving the main shaft, sprocket, lifting chain, and conveyor plate, the block materials are lifted to the upper discharge port and poured into the upper silo through the belt conveyor.

Claims

1. The present invention is a gravity energy storage equipment process, which consists of a vertical conveyor for block materials and a generator motor. The main shaft of the conveyor head is connected to the generator motor. The device is vertically installed in a space with a certain height difference, the head part is installed on the upper platform, the tail part is installed on the lower platform, and the fuselage is installed in the middle space of the upper and lower platforms. When the block materials are lowered, the generator motor is driven by the conveyor to generate electricity. When the block materials are lifted, the generator motor drives the conveyor to lift the materials.

2. This device consists of a machine head, a lifting chain, a conveying plate, a machine body, a machine tail, a feed port, a discharge port, etc. The machine head consists of a sprocket, a main shaft, a brake device, a machine head bearing seat, etc., and the machine head is installed on the upper platform. The machine tail consists of a sprocket, a main shaft, a machine tail bearing seat, etc., and the machine tail is installed on the lower platform through the machine tail bearing frame. The machine body is composed of steel structural parts, the machine head and the machine tail are closed, the middle fuselage cross-section is rectangular, and the fuselage is installed between the upper and lower platforms. The lifting chain is connected to the conveying plate through an open connector at a certain distance, the conveying plate runs in the machine body, the connecting part of the conveying plate and the lifting chain runs in the steel plate slides on both sides of the machine body, and the lifting chain runs outside the machine body. There is a certain gap between the head and tail sprockets and the machine body for easy operation; the steel plate on the upper part of the machine body (on the upper side of the discharge port) is parallel to the main axis and close to the main axis with a certain slope, and the upper part crosses the vertical symmetry line of the circular section of the head main axis, so that the block materials on the transport plate can be completely unloaded during transportation. There is an inlet and outlet at the upper and lower parts of the machine body. The inlet is fed by the silo through the feeder, and the discharge port is connected to the conveyor to store the block materials in the silo. The size of the block materials is slightly larger than the distance between the transport plate and the inner side of the machine body, and also larger than the distance between the connection part of the conveyor plate and the lifting chain and the steel plate slideway on both sides of the machine body to prevent the block materials from leaking.

3. When generating electricity, the device starts, and the block materials in the upper silo enter the fuselage through the conveyor belt conveyor, feeder, and upper side feed port. Under the action of gravity of the block materials, the conveyor plate and lifting chain drive the main shaft and the generator motor connected thereto to rotate to generate electricity, and the block materials go to the lower discharge port and are poured into the lower silo through the belt conveyor; when storing energy, the device starts, and the block materials in the lower silo enter the fuselage through the conveyor belt conveyor, feeder, and lower side feed port. Under the action of the generator motor driving the main shaft, sprocket, lifting chain, and conveyor plate, the block materials are lifted to the upper discharge port and poured into the upper silo through the belt conveyor.

4. The device according to claim 1, characterized in that: The sprockets at the head are on both sides, and the diameter of the middle main shaft is small, which is convenient for the conveying plate to pass through during rotation. The conveying plates are installed in groups at a certain distance according to their strength and the weight of the conveyed materials. The vertical conveyor for block materials realizes the lifting and lowering of materials through the sprockets, lifting chains, and conveying plates in conjunction with the fuselage; the conveying plates are square steel plates, which are slightly smaller than the cross-section of the fuselage. The fuselage is a square cylinder structure, which holds the running materials. A certain size spacing is left in the middle of the steel plates on both sides as the running slideway of the connecting part of the conveying plate and the lifting chain; the steel plates parallel to the main shaft and close to the main shaft on the upper part of the fuselage (on the upper side of the discharge port) have a certain slope, and the upper part crosses the vertical symmetry line of the circular section of the head main shaft, so that the block materials on the transport plate can be completely unloaded during the upper transportation. The vertical conveyor for block materials and the generator motor realize the conversion of gravitational potential energy and electrical energy through the continuous lifting and lowering of block materials, and realize the purpose of gravity energy storage.

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