CN217594791U

CN217594791U - Thermal power factory energy saving and emission reduction device based on SIS system

Info

Publication number: CN217594791U
Application number: CN202220897963.6U
Authority: CN
Inventors: 张锡强; 陈振来; 温振华; 王志强
Original assignee: Shandong Xuguo Energy Co ltd
Current assignee: Shandong Xuguo Energy Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-10-18
Anticipated expiration: 2032-04-18

Abstract

The utility model provides a thermal power plant energy saving and emission reduction device based on SIS system, relates to the field of power generation energy saving and emission reduction equipment, including fixed station and mount table, be provided with the conveyer belt on the fixed station, feeder hopper and conveying apron have been erect on the conveyer belt, one side of fixed station is provided with the coal pulverizer, be provided with the blanking hopper on the coal pulverizer, the one end of conveying apron is in the top of blanking hopper, be connected with the conveying pipeline on the discharge gate of coal pulverizer, the conveying pipeline slope sets up and communicates the screening case, be provided with screening subassembly, vibrating motor, first discharge gate and second discharge gate on the screening case, one side of first discharge gate is provided with the lifting machine, be provided with the unloading pipe on the discharge gate of lifting machine; the device grinds a coal mine into powder and then leads the powder into a boiler for full combustion, so that the heat efficiency is obviously improved, the generation of a large amount of harmful gas caused by incomplete combustion is reduced, and the purposes of energy conservation and emission reduction of a thermal power plant are met.

Description

Thermal power factory energy saving and emission reduction device based on SIS system

Technical Field

The utility model belongs to the technical field of the energy saving and emission reduction equipment that generates electricity and specifically relates to a thermal power factory energy saving and emission reduction device based on SIS system.

Background

Thermal power generation, which utilizes the heat energy generated by combustible materials during combustion to convert the heat energy into electric energy through a power generation power device. China is rich in coal resources, 10.9 hundred million tons of coal are produced in 1990, and the coal for power generation only accounts for 12 percent. Thermal power generation still has huge potential.

At present, the coal mine particle size is large in the thermal power generation process, so that the problems of insufficient subsequent combustion in a boiler and the like are solved, the thermal efficiency is reduced due to the insufficient combustion, a large amount of harmful gas is generated after the boiler is combusted, and the purposes of energy conservation and emission reduction of a thermal power plant are not met.

SUMMERY OF THE UTILITY MODEL

Have the colliery granule to cause the insufficient combustion greatly among the prior art to make the thermal efficiency lower, harmful gas discharges simultaneously and increases, is not conform to the problem of energy saving and emission reduction theory, the utility model provides a thermal power factory energy saving and emission reduction device based on SIS system can avoid the emergence of above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is:

a thermal power plant energy-saving emission-reducing device based on an SIS system comprises a fixed table and an installation table, wherein a conveying belt is arranged on the fixed table, a feeding hopper and a conveying plate are erected on the conveying belt, a coal mill is arranged on one side of the fixed table, a blanking hopper is arranged on the coal mill, one end of the conveying plate is positioned above the blanking hopper, a conveying pipe is connected to a discharge port of the coal mill, the conveying pipe is obliquely arranged and communicated with a screening box, a screening assembly, a vibration motor, a first discharge port and a second discharge port are arranged on the screening box, a lifting machine is arranged on one side of the first discharge port, a blanking pipe is arranged on a discharge port of the lifting machine, the blanking pipe is also obliquely arranged, the discharge port of the blanking pipe is positioned above the blanking hopper, the second discharge port is communicated with a channel, one end of the channel is a circular discharge port, a negative pressure fan is arranged between the discharge port of the channel and a feed port of a boiler, an air outlet pipe is arranged on the boiler, a steam turbine is arranged on the installation table, and the air outlet pipe is connected with an air inlet of the steam turbine; the device effectively improves the combustion efficiency of a coal mine in a boiler, reduces the generation amount of harmful gas caused by insufficient combustion, and achieves the purposes of energy conservation and emission reduction.

Furthermore, the screening assembly comprises a fine powder plate and a screening plate, the fine powder plate is positioned below the screening plate, the fine powder plate and the screening plate are obliquely arranged and are attached to the inner wall of the screening box, one end of the fine powder plate is flush with the bottom end of the second discharge port, and one end of the screening plate is flush with the bottom end of the first discharge port; the screening subassembly carries out the secondary grinding with the insufficient colliery powder of coal pulverizer grinding, and the colliery powder that will grind fully lets in the boiler internal combustion and fires and be equipped with a large amount of steam.

Furthermore, the channel is connected with the second discharge port through a first cloth bag, and the conveying pipeline is connected with the screening box through a second cloth bag; avoid the position to rock under vibrating motor's effect other parts take place together.

Further, the main body of the channel is U-shaped; the channel is designed into a U shape, so that the blockage in the conveying process of the first powder outlet of the grinding coal mine into the lifter can be avoided.

Further, the other end of the material conveying plate is not in contact with the conveyor belt.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses utilize the coal pulverizer to realize the colliery by cubic grinding process to the powder, the purpose is the thermal efficiency that improves the burning of follow-up coal in the boiler for the abundant burning as far as of colliery powder reduces harmful gas's production, reaches energy saving and emission reduction's effect.

2. The utility model discloses a screening subassembly can let in the insufficient coal mine powder of first coal pulverizer grinding again and carry out the secondary grinding in the coal pulverizer, and furthest improves the combustion effect of coal mine powder, avoids the condition of insufficient burning to take place.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of reference character A in FIG. 1;

reference numerals:

1. a fixed table; 2. a conveyor belt; 21. a feed hopper; 22. a material conveying plate; 3. a coal mill; 31. a feeding hopper; 32. a delivery pipe; 4. a screening box; 41. a fine powder board; 42. screening the plate; 46. a first discharge port; 47. a second discharge port; 48. a vibration motor; 5. a channel; 51. a negative pressure fan; 6. a boiler; 61. an air outlet pipe; 7. an installation table; 71. a steam turbine; 8. a hoist; 81. and (5) discharging the material pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 2, a thermal power plant energy saving and emission reduction device based on SIS system, includes a fixed station 1 and an installation table 7, the fixed station is provided with a conveyor belt 2, the conveyor belt is provided with a feed hopper 21 and a conveying plate 22, a large amount of coal mines are conveyed by the conveyor belt, the conveyor belt includes a conveyor belt, the feed hopper is located right above the conveyor belt, the coal mines are conveyed from the feed hopper to the conveyor belt, overflow of the coal mines can be effectively reduced, the conveying plate can convey the coal mines on the conveyor belt to other areas for processing, one side of the fixed station is provided with a coal mill 3, a grinding process from blocks to powder of the coal mines is realized by the coal mill, the purpose is to improve the thermal efficiency of burning of the subsequent coal in a boiler, so that the powder of the coal mines is fully burned to reduce the generation of harmful gas, and the effect of energy saving and emission reduction is achieved, the coal mill is provided with a discharge hopper 31, it is worth mentioning that one end of the material conveying plate is not in contact with the conveying belt, the other end of the material conveying plate is located above the blanking hopper, the coal mine is conveyed to the blanking hopper through the material conveying plate and then is ground into powder in the coal grinding machine, a material conveying pipe 32 is connected to a material outlet of the coal grinding machine, the material conveying pipe is obliquely arranged and communicated with the screening box 4, the material conveying pipe is obliquely arranged to facilitate blanking, the coal mine powder is conveyed into the screening box after grinding is finished, large ground coal mine powder possibly exists because primary grinding of the coal grinding machine is not thorough, the ground coal mine powder is further screened through the screening box, the powder meeting the requirements is conveyed into a subsequent process to be combusted, the powder not meeting the requirements is conveyed back into the coal grinding machine again to be subjected to secondary processing grinding, and a screening assembly is arranged on the screening box, the vibrating motor 48, the first discharge port 46 and the second discharge port 47 are used for driving the screening box to vibrate to screen coal mine powder, the elevator 8 is arranged on one side of the first discharge port, the discharge port of the elevator is provided with the blanking pipe 81 which is also obliquely arranged, the discharge port of the blanking pipe is positioned above the blanking hopper, blanking is also convenient, the feeding port of the elevator is larger than the first discharge port, the powder can be continuously and completely introduced into the elevator to be conveyed, the coal mine powder with larger particles enters the feeding port of the elevator from the first discharge port and is conveyed into the coal mill again along with the movement of the elevator to be ground for the second time, and the elevator adopts a bucket elevator, the second discharge port is communicated with the channel 5, grinding powder meeting requirements enters the channel from the second discharge port, the main body of the channel is U-shaped, the design is carried out in such a way that the channel and a hoisting machine are prevented from mutually blocking to influence feeding, and the situation that unqualified grinding powder cannot be conveyed back to a coal mill again for secondary grinding is avoided, one end of the channel is a circular discharge port, a negative pressure fan 51 is arranged between the discharge port of the channel and a feed port of the boiler 6, the grinding powder in the channel is sucked into the boiler by the negative pressure fan to be fully combusted and heated, the boiler is provided with an air outlet pipe 61, a large amount of steam can be generated in the combustion process of the boiler, and flows out of the air outlet pipe, the mounting table is provided with a steam turbine 71, and the air outlet pipe is connected with an air inlet of the steam turbine; and steam is introduced from the air inlet of the steam turbine to provide power for the subsequent work doing of the steam turbine, and finally, the thermal power generation process is realized.

The embodiment of the utility model provides a further refine, as shown in fig. 1-2, the screening subassembly includes fine powder board 41 and screening plate 42, fine powder board is in the below of screening plate, fine powder board and screening plate all incline to set up and laminate mutually with the inner wall of screening case, guarantee that all coal mine powder that lets in the screening bucket can all be filtered, the one end of fine powder board is the same with the bottom end of second discharge gate, the one end of screening plate is the same with the bottom end of first discharge gate; the method comprises the following steps of firstly screening coal mine powder through a screening plate, dropping the powder which is sufficiently ground onto a fine powder plate, remaining the powder which is insufficiently ground on the screening plate, enabling the ground coal mine on the fine powder plate to enter a channel and finally being conveyed to a boiler for combustion, and enabling the ground powder on the screening plate to enter a lifter to be conveyed back to a coal mill for secondary processing.

According to the embodiment of the utility model, the channel is connected with the second discharge port through the first cloth bag, and the conveying pipe is connected with the screening box through the second cloth bag; the first cloth bag and the second cloth bag are not shown in the figure, so that the vibration motor is prevented from working to drive other parts to move together, and the comprehensive effect is better than that of the embodiment shown in the attached figure 1 of the specification.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a thermal power factory energy saving and emission reduction device based on SIS system, a serial communication port, including fixed station and mount table, be provided with the conveyer belt on the fixed station, feeder hopper and conveying apron have been erect on the conveyer belt, one side of fixed station is provided with the coal pulverizer, be provided with down the hopper on the coal pulverizer, the one end of conveying apron is in the top of hopper down, be connected with the conveying pipeline on the discharge gate of coal pulverizer, the conveying pipeline slope sets up and communicates the screening case, be provided with screening subassembly, vibrating motor, first discharge gate and second discharge gate on the screening case, one side of first discharge gate is provided with the lifting machine, be provided with the unloading pipe on the discharge gate of lifting machine, the same slope setting of unloading pipe, the discharge gate of unloading pipe is in the top of unloading hopper, second discharge gate intercommunication passageway, be provided with negative-pressure fan between the discharge gate of passageway and the feed inlet of boiler, be provided with the outlet duct on the boiler, be provided with the steam turbine on the mount table, the air inlet of steam turbine is connected to the outlet duct.

2. The SIS system-based energy saving and emission reduction device for the thermal power plant according to claim 1, wherein the screening assembly comprises a fine powder plate and a screening plate, the fine powder plate is located below the screening plate, the fine powder plate and the screening plate are both obliquely arranged and attached to the inner wall of the screening box, one end of the fine powder plate is flush with the bottom end of the second discharge port, and one end of the screening plate is flush with the bottom end of the first discharge port.

3. The energy-saving and emission-reducing device of a thermal power plant based on an SIS system as claimed in claim 1, wherein the channel is connected with the second discharge port through a first cloth bag, and the conveying pipeline is connected with the screening box through a second cloth bag.

4. The energy saving and emission reduction device for thermal power plants based on the SIS system of claim 1, wherein the main body of the channel is U-shaped, and one end of the channel is a circular discharge hole.

5. The SIS system-based thermal power plant energy saving and emission reduction device according to claim 1, wherein the other end of the material conveying plate is not in contact with the conveyor belt.