A pulse anti-blocking composite bucket for peak shaving and distribution

Abstract

This utility model relates to the field of coal conveying and discloses a pulse anti-blocking composite hopper for compartmentalized peak shaving. It includes a first primary coal feeder and a second primary coal feeder, which are symmetrically arranged. A first composite hopper and a second composite hopper are respectively located on one side of the center of the upper end face of the first and second primary coal feeders. A first curved hopper is located at the center of the rear end face of the second composite hopper, and a second curved hopper is located at the center of the front end face of the first composite hopper. In this utility model, by employing a symmetrical arrangement of the first and second primary coal feeders, and by using a pulse anti-blocking device in conjunction with the separately equipped first and second composite hoppers, combined with an external curved small coal hopper and an extended coal feeder structure, a compartmentalized peak shaving function is achieved. The coal feed rate of different compartments can be flexibly adjusted according to actual needs, improving the stability and adaptability of the system and effectively responding to changes in coal demand under different working conditions.

Description

Technical Field

[0001] This utility model relates to the field of coal transportation, and in particular to a pulse anti-blocking composite hopper for compartmentalized peak regulation. Background Technology

[0002] The pulse anti-blocking composite hopper technology for peak shaving is an innovative technology for thermal power plants. It aims to improve the flexibility and peak shaving capacity of the units while reducing blockage problems caused by coal type switching. The core of this technology lies in modifying the raw coal silo to achieve rapid switching and precise blending of different coal types in order to cope with rapid changes in electricity demand.

[0003] Traditional pulse anti-blocking composite hoppers for compartmentalized peak shaving have limitations in response speed and flexibility, making it difficult to meet rapidly changing load demands. Coal type switching may take a long time, affecting the unit's rapid response capability and easily causing coal bunker blockage and other problems, thus affecting the stable operation of the boiler pulverizing system. Therefore, those skilled in the art have provided a pulse anti-blocking composite hopper for compartmentalized peak shaving to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pulse anti-blocking composite hopper for compartmentalized peak shaving. This hopper utilizes a symmetrical arrangement of a first and second raw coal feeder, a pulse anti-blocking device integrated with the respective first and second composite hoppers, and a structure incorporating an external curved small coal hopper and an extended feeder. This achieves compartmentalized peak shaving, allowing for flexible adjustment of coal feed rates in different compartments based on actual needs, improving system stability and adaptability, and effectively addressing changes in coal demand under varying operating conditions. The design of the second and first bidirectional pneumatic gates effectively controls material flow, enabling more precise material distribution and conveying control, thereby improving the overall system efficiency and reliability. Furthermore, both the first and second extended feeders are inclined, facilitating continuous raw coal conveying. The two wear-resistant layers are made of alumina coating, using high-hardness, high-wear-resistant materials to effectively resist wear from raw coal, reducing equipment maintenance and replacement frequency and lowering operating costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pulse anti-blocking composite hopper for peak regulation, comprising a first raw coal feeder and a second raw coal feeder, wherein the first raw coal feeder and the second raw coal feeder are symmetrically arranged, and a first composite hopper and a second composite hopper are respectively provided on one side of the center of the upper end face of the first raw coal feeder and the second raw coal feeder, a first curved hopper is provided at the center of the rear end face of the second composite hopper, a second curved hopper is provided at the center of the front end face of the first composite hopper, and a second bidirectional pneumatic slide gate is provided at the lower center of the outer side wall of the first curved hopper;

[0006] The second curved bucket has a first bidirectional pneumatic gate located at the lower center of its outer side wall. The second curved bucket has a first extended feeder located at the center of its lower end face. The first curved bucket has a second extended feeder located at the center of its lower end face. The second extended feeder has a third bidirectional pneumatic gate located on one side of its lower end face. The first extended feeder has a fourth bidirectional pneumatic gate located on one side of its lower end face. The inner side walls of both the first and second composite buckets are provided with wear-resistant layers. The outer side walls of the first original feeder, the second original feeder, the first composite bucket, and the second composite bucket are all provided with multiple pulse anti-blocking devices.

[0007] Through the above technical solution, by symmetrically setting the first and second raw coal feeders, and by using pulse anti-blocking devices and separately equipped first and second composite hoppers, combined with the structure of external curved small coal hoppers and extended coal feeders, the function of compartmentalized peak regulation is realized. The coal feed rate of different hoppers can be flexibly adjusted according to actual needs, improving the stability and adaptability of the system and effectively responding to changes in coal demand under different working conditions. Through the second and first bidirectional pneumatic gates, this design can effectively control the flow of materials, achieving more precise material distribution and conveying control, thereby improving the efficiency and reliability of the entire system. Furthermore, both the first and second extended coal feeders are inclined, which helps to achieve continuous conveying of raw coal. By using alumina coating for both wear-resistant layers, and by using high-hardness and high-wear-resistant materials, the wear of raw coal on the hopper body is effectively resisted, reducing the frequency of equipment maintenance and replacement, and lowering operating costs.

[0008] Furthermore, both the first extended coal feeder and the second extended coal feeder are inclined.

[0009] The above technical solution enables continuous transportation of raw coal.

[0010] Furthermore, both the first and second raw coal feeders are made of stainless steel.

[0011] Through the above technical solutions, stainless steel material has good corrosion resistance, strength and wear resistance, effectively resisting the corrosion of moisture, chemicals and other substances that may be contained in raw coal, and extending the service life of equipment.

[0012] Furthermore, both the first composite bucket and the second composite bucket are made of high-manganese steel;

[0013] Through the above technical solutions, high manganese steel has high hardness, good toughness and wear resistance, effectively resisting the wear of raw coal on the bucket body, reducing the frequency of equipment maintenance and replacement, and lowering operating costs.

[0014] Furthermore, both wear-resistant layers are made of aluminum oxide coating;

[0015] Through the above technical solutions, the alumina coating has high hardness, high wear resistance and good chemical stability, which enhances the surface hardness of the equipment, reduces wear caused by friction and impact, and extends the service life of the equipment.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, the pulse anti-blocking composite hopper for peak shaving in compartments adopts a first original coal feeder and a second original coal feeder symmetrically arranged. Through the pulse anti-blocking device and the first and second composite hoppers respectively equipped, combined with the structure of the external curved small coal hopper and the extended coal feeder, the function of peak shaving in compartments can be realized. The coal feed rate of different compartments can be flexibly adjusted according to actual needs, improving the stability and adaptability of the system and effectively coping with changes in coal demand under different working conditions.

[0018] 2. In this utility model, the design of the second bidirectional pneumatic slide gate and the first bidirectional pneumatic slide gate can effectively control the flow of materials, achieve more precise material distribution and conveying control, thereby improving the efficiency and reliability of the entire system. Furthermore, both the first extended coal feeder and the second extended coal feeder are inclined, which helps to achieve continuous conveying of raw coal.

[0019] 3. In this utility model, both wear-resistant layers are made of alumina coating. By using high-hardness and high-wear-resistant materials, the wear of raw coal on the bucket body is effectively resisted, reducing the frequency of equipment maintenance and replacement, and lowering operating costs. Attached Figure Description

[0020] Figure 1 A three-dimensional view of a pulse anti-blocking composite hopper for peak shaving and compartmentalization proposed in this utility model;

[0021] Figure 2 This is a front view of a pulse anti-blocking composite hopper for peak shaving and compartmentalization proposed in this utility model;

[0022] Figure 3 This is a side sectional view of a pulse anti-clogging composite hopper for peak shaving and compartmentalization proposed in this utility model.

[0023] Figure 4 This is a side view of a pulse anti-blocking composite hopper for peak shaving and compartmentalization proposed in this utility model.

[0024] Legend:

[0025] 1. First raw coal feeder; 2. Second raw coal feeder; 3. First composite hopper; 4. Second composite hopper; 5. First curved hopper; 6. Second curved hopper; 7. Second bidirectional pneumatic slide gate; 8. First extended coal feeder; 9. Second extended coal feeder; 10. Third bidirectional pneumatic slide gate; 11. Fourth bidirectional pneumatic slide gate; 12. First bidirectional pneumatic slide gate; 13. Wear-resistant layer; 14. Pulse anti-clogging device. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1-4 This utility model provides an embodiment of a pulse anti-blocking composite hopper for peak shaving and compartmentalization, comprising a first raw coal feeder 1 and a second raw coal feeder 2, which are symmetrically arranged. A first composite hopper 3 and a second composite hopper 4 are respectively located on one side of the center of the upper end face of the first raw coal feeder 1 and the second raw coal feeder 2. A first curved hopper 5 is located at the center of the rear end face of the second composite hopper 4, and a second curved hopper 6 is located at the center of the front end face of the first composite hopper 3. A second bidirectional pneumatic insertion gate 7 is located near the lower center of the outer side wall of the first curved hopper 5, and a second bidirectional pneumatic insertion gate 7 is located near the lower center of the outer side wall of the second curved hopper 6. The lower part is provided with a first bidirectional pneumatic slide gate 12, the lower end face center of the second curved bucket 6 is provided with a first extended coal feeder 8, the lower end face center of the first curved bucket 5 is provided with a second extended coal feeder 9, the lower end face center of the second extended coal feeder 9 is provided with a third bidirectional pneumatic slide gate 10 on one side, the lower end face center of the first extended coal feeder 8 is provided with a fourth bidirectional pneumatic slide gate 11 on one side, the inner side walls of the first composite bucket 3 and the second composite bucket 4 are provided with a wear-resistant layer 13, and the outer side walls of the first original coal feeder 1, the second original coal feeder 2, the first composite bucket 3 and the second composite bucket 4 are provided with multiple pulse anti-blocking devices 14.

[0028] Raw coal is conveyed by a symmetrically arranged first raw coal feeder 1 and second raw coal feeder 2. The raw coal feeders convey the raw coal to the first composite hopper 3 and the second composite hopper 4. The composite hoppers perform preliminary storage and buffering of the raw coal. The raw coal in the first composite hopper 3 enters the second curved hopper 6 at the center of the front face, and the raw coal in the second composite hopper 4 enters the first curved hopper 5 at the center of the rear face, realizing the compartment function. By controlling the first bidirectional pneumatic gate 12 and the second bidirectional pneumatic gate 7, the discharge speed and flow rate of the second curved hopper 6 and the first curved hopper 5 can be adjusted. The raw coal in the external curved small coal hopper enters the first extended coal feeder 8 and the second extended coal feeder 9 at the center of the lower face, respectively. The extended coal feeders further convey the raw coal. The third bidirectional pneumatic gate 10 and the fourth bidirectional pneumatic gate 11 control the discharge of the first extended coal feeder 8 and the second extended coal feeder 9 at the lower end.

[0029] Both the first extended coal feeder 8 and the second extended coal feeder 9 are inclined to achieve continuous conveying of raw coal. The first raw coal feeder 1 and the second raw coal feeder 2 are made of stainless steel. Stainless steel has good corrosion resistance, strength, and wear resistance, effectively resisting the corrosion of moisture, chemicals, etc., that may be contained in the raw coal, and extending the service life of the equipment. The first composite bucket 3 and the second composite bucket 4 are made of high manganese steel. High manganese steel has high hardness, good toughness, and wear resistance, effectively resisting the wear of raw coal on the bucket body, reducing the frequency of equipment maintenance and replacement, and lowering operating costs. The two wear-resistant layers 13 are made of alumina coating. Alumina coating has high hardness, high wear resistance, and good chemical stability, enhancing the surface hardness of the equipment, reducing wear caused by friction and impact, and extending the service life of the equipment.

[0030] Working principle: Raw coal is conveyed through the symmetrically arranged first raw coal feeder 1 and second raw coal feeder 2. The raw coal feeders convey the raw coal to the first composite hopper 3 and the second composite hopper 4. The composite hoppers perform preliminary storage and buffering of the raw coal. The raw coal in the first composite hopper 3 enters the second curved hopper 6 at the center of the front face, and the raw coal in the second composite hopper 4 enters the first curved hopper 5 at the center of the rear face, realizing the compartment function. By controlling the first bidirectional pneumatic gate 12 and the second bidirectional pneumatic gate 7, the discharge speed and flow rate of the second curved hopper 6 and the first curved hopper 5 can be adjusted. The raw coal in the external curved small coal hopper enters the first extended coal feeder 8 and the second extended coal feeder 9 at the center of the lower face, respectively. The extended coal feeders further convey the raw coal. The third bidirectional pneumatic gate 10 and the fourth bidirectional pneumatic gate 11 control the discharge of the first extended coal feeder 8 and the second extended coal feeder 9 at the lower end.

[0031] The pulse anti-clogging system on the first curved bucket 5 and the second curved bucket 6 involves compressed air entering the pulse anti-clogging device 14 and being momentarily opened by a pulse valve. The airflow enters the pulse anti-clogging assembly, lifting the umbrella rod and spraying the airflow along the outer circumference of the sleeve to clean the inner wall of the container. The perforated nut and flange nut clamp the assembly to the cement wall through a spacer, providing mechanical fixation. When compressed air enters the pipe 14, the pulse valve is momentarily opened, allowing the airflow to enter the pulse anti-clogging assembly, lifting the umbrella rod and spraying the airflow along the outer circumference of the sleeve to clean the inner wall of the container. When the pulse valve closes, the umbrella rod quickly returns to its seat due to the spring force, achieving a sealing effect.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pulse anti-blocking composite hopper for peak shaving and compartmentalization, comprising a first raw coal feeder (1) and a second raw coal feeder (2), characterized in that: The first original coal feeder (1) and the second original coal feeder (2) are symmetrically arranged. The first original coal feeder (1) and the second original coal feeder (2) are respectively provided with a first composite bucket (3) and a second composite bucket (4) at one side of the center of the upper end face. The second composite bucket (4) is provided with a first curved bucket (5) at the center of the rear end face. The first composite bucket (3) is provided with a second curved bucket (6) at the center of the front end face. The first curved bucket (5) is provided with a second bidirectional pneumatic slide gate (7) at the lower center of the outer side wall. The second curved bucket (6) is provided with a first bidirectional pneumatic slide gate (12) at the lower center of the outer side wall. The second curved bucket (6) is provided with a first extended coal feeder (8) at the center of the lower end face. The first curved bucket (5) is provided with a second extended coal feeder (9) at the center of the lower end face. The second extended coal feeder (9) is provided with a third bidirectional pneumatic slide gate (10) at the center of the lower end face. The first extended coal feeder (8) is provided with a fourth bidirectional pneumatic slide gate (11) at the center of the lower end face. The inner side walls of the first composite bucket (3) and the second composite bucket (4) are provided with a wear-resistant layer (13). The outer side walls of the first original coal feeder (1), the second original coal feeder (2), the first composite bucket (3), and the second composite bucket (4) are provided with multiple pulse anti-blocking devices (14).

2. The pulse anti-clogging composite hopper for peak shaving and compartmentalization according to claim 1, characterized in that: Both the first extended coal feeder (8) and the second extended coal feeder (9) are inclined.

3. The pulse anti-clogging composite hopper for peak shaving and compartmentalization according to claim 1, characterized in that: Both the first raw coal feeder (1) and the second raw coal feeder (2) are made of stainless steel.

4. The pulse anti-clogging composite hopper for peak shaving and compartmentalization according to claim 1, characterized in that: Both the first composite bucket (3) and the second composite bucket (4) are made of high manganese steel.

5. The pulse anti-clogging composite hopper for peak shaving and compartmentalization according to claim 1, characterized in that: Both wear-resistant layers (13) are made of aluminum oxide coating.

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