CN212058180U

CN212058180U - Coal drying device for thermal power plant

Info

Publication number: CN212058180U
Application number: CN202020824605.3U
Authority: CN
Inventors: 雷联涛; 杨涛; 王磊; 王龙; 周红星; 陈磊磊
Original assignee: Luoyang Wanji Power Generation Co ltd
Current assignee: Luoyang Wanji Power Generation Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-01
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a coal drying device for thermal power plant, including base, a heat preservation section of thick bamboo and filter core, the top bolt fastening of base has the support frame, and the top bolt fastening of support frame has a stoving section of thick bamboo to the left end of a stoving section of thick bamboo is connected with a feeding section of thick bamboo, the outside of a stoving section of thick bamboo is provided with a heat preservation section of thick bamboo, and the left end downside of a heat preservation section of thick bamboo has seted up into the mouth, the exhaust port has been seted up to a right-hand member upside of a heat preservation section of thick bamboo, the right-hand member top of a stoving section of thick bamboo is provided with the blast pipe, and the upper surface of blast pipe has seted up. This coal drying device for thermal power plant adopts double-deck stack shell structure, can utilize the high fever flue gas that the burning of power generation in-process coal produced to carry out drying process to coal, need not the exclusive use electric energy heating, can effectively purify environmental protection and energy saving to the toxic gas that produces simultaneously among the drying process.

Description

Coal drying device for thermal power plant

Technical Field

The utility model relates to a coal drying device technical field specifically is a coal drying device is used in thermal power plant.

Background

Along with the continuous development of economy, people's demand for electric power is getting bigger and bigger, although natural energy power generation is developing continuously, thermal power generation still is the main power generation mode at present, in the power generation process of thermal power factory, need to burn a large amount of coal, through converting the thermal energy that produces into mechanical energy, again with mechanical energy conversion into electric energy, but the water content in most coal is higher, if direct combustion can reduce the combustion efficiency and the heat production performance of coal, consequently need use coal drying device to dry coal, but the coal drying device in the present market still has some deficiencies, for example:

1. the coal drying device in the current market mostly adopts an electric heating mode to dry coal, so that a large amount of electric energy is consumed, the energy saving performance is low, and certain use defects exist;

2. because water-containing coal can take place certain thermal reaction at the stoving heating in-process to can produce some poisonous and harmful gas, but the coal drying device on the existing market mostly directly discharges the gas that produces in the stoving process, leads to serious environmental pollution.

We have proposed a coal drying apparatus for thermal power plants in order to solve the problems set forth above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal drying device is used in thermal power plant to solve the problem that coal drying device power consumption is great and inconvenient to handle the purification to the toxic gas of production on the existing market that above-mentioned background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a coal drying device for thermal power plant, includes base, a heat preservation section of thick bamboo and filter core, the top bolt fastening of base has the support frame, and the top bolt fastening of support frame has a section of thick bamboo of drying to the left end of a section of thick bamboo of drying is connected with a feeding section of thick bamboo, the outside of a section of thick bamboo of drying is provided with a heat preservation section of thick bamboo, and the left end downside of a heat preservation section of thick bamboo has seted up into the mouth to the inboard bearing of a section of thick bamboo of drying is connected with the screw propulsion pole, the exhaust port has been seted up to the right-hand member upside of a heat preservation section of thick bamboo, the right-hand member top of a section of thick bamboo of drying.

Preferably, the outer side of the drying cylinder is uniformly provided with heat conducting blocks, the heat conducting blocks are made of copper, and the heat conducting blocks are not in contact with the heat preservation cylinder.

Preferably, the feeding cylinder is of an arc tubular structure, and the feeding cylinder and the drying cylinder are of an integrated structure.

Preferably, the heat-insulating cylinder and the drying cylinder are of a sleeving structure, and a filter screen is arranged on the inner side of the smoke inlet formed in the outer side of the heat-insulating cylinder.

Preferably, the surface of the exhaust pipe is provided with a clamping groove, the clamping groove is of an L-shaped structure, clamping blocks are symmetrically arranged on the outer side of the mounting block at the upper end of the exhaust pipe, and meanwhile the clamping blocks and the clamping groove form a clamping structure.

Preferably, the installation piece and the blast pipe clearance fit, and the lower surface of installation piece bonds and has sealed rubber ring to sealed rubber ring's section is the trapezium structure, and sealed rubber ring cooperates with the seal groove is unsmooth simultaneously.

Compared with the prior art, the beneficial effects of the utility model are that: the coal drying device for the thermal power plant;

1. the device is provided with the heat conducting block and the heat preservation cylinder, high-heat smoke generated by coal combustion in the power generation process is introduced into the heat preservation cylinder, at the moment, the heat conducting block can absorb and conduct heat in the high-heat smoke, so that the drying cylinder is heated, and coal can be continuously dried;

2. be provided with blast pipe and filter core, can be with the toxic gas eduction gear that the coal stoving in-process produced through the blast pipe, the filter core can carry out effective filtration, processing to toxic gas, makes the device can carry out effectual purification, processing to the toxic gas that the coal stoving in-process produced through this structure, avoids producing environmental pollution.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present invention;

FIG. 2 is a schematic view of the installation block of the present invention;

FIG. 3 is a schematic side sectional view of the drying drum of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the exhaust pipe of the present invention.

In the figure: 1. a base; 2. a support frame; 3. a drying drum; 301. a heat conducting block; 4. a feeding cylinder; 5. a heat-preserving cylinder; 6. a smoke inlet; 601. filtering with a screen; 7. a screw propulsion rod; 8. a smoke outlet; 9. an exhaust pipe; 901. a card slot; 10. a sealing groove; 11. mounting blocks; 1101. sealing the rubber ring; 1102. a clamping block; 12. and (3) a filter element.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a coal drying device for a thermal power plant comprises a base 1, a support frame 2, a drying cylinder 3, a feeding cylinder 4, a heat-insulating cylinder 5, a smoke inlet 6, a spiral push rod 7, a smoke outlet 8, an exhaust pipe 9, a sealing groove 10, a mounting block 11 and a filter element 12, wherein the support frame 2 is fixed on the upper portion of the base 1 through bolts, the drying cylinder 3 is fixed on the upper portion of the support frame 2 through bolts, the left end of the drying cylinder 3 is connected with a feeding cylinder 4, the outer side of the drying cylinder 3 is provided with a heat-insulating cylinder 5, the lower side of the left end of the heat-insulating cylinder 5 is provided with a smoke inlet 6, and the inner side bearing of the drying cylinder 3 is connected with a spiral pushing rod 7, the upper side of the right end of the heat-insulating cylinder 5 is provided with a smoke outlet 8, an exhaust pipe 9 is arranged above the right end of the drying cylinder 3, the upper surface of the exhaust pipe 9 is provided with a sealing groove 10, an installation block 11 is arranged above the exhaust pipe 9, and a filter element 12 is arranged on the inner side of the installation block 11;

the heat conducting blocks 301 are uniformly arranged on the outer side of the drying cylinder 3, the heat conducting blocks 301 are made of copper, the heat conducting blocks 301 are not in contact with the heat preservation cylinder 5, and high-temperature flue gas generated by coal combustion during power generation is introduced into the heat preservation cylinder 5, so that the heat conducting blocks 301 can absorb and conduct heat in the high-temperature flue gas, the drying cylinder 3 is effectively heated, and the coal is dried through recovered heat;

the feeding cylinder 4 is of an arc tubular structure, the feeding cylinder 4 and the drying cylinder 3 are of an integrated structure, and the feeding cylinder 4 with the arc structure can play a certain buffering role in the coal adding process, so that the phenomenon that the coal falls too fast and collides to generate fragments and dust is avoided, and the recovery rate of the coal is improved;

the heat-insulating cylinder 5 and the drying cylinder 3 are in a sleeved structure, the filter screen 601 is arranged on the inner side of the smoke inlet 6 formed in the outer side of the heat-insulating cylinder 5, carbon dust and the like in high-heat smoke after combustion can be prevented from entering the inner side of the heat-insulating cylinder 5 through the filter screen 601, the carbon dust is prevented from being attached to the outer sides of the drying cylinder 3 and the heat-conducting block 301, and the heat-conducting effect of the device is prevented from being influenced;

the clamping groove 901 is formed in the surface of the exhaust pipe 9, the clamping groove 901 is of an L-shaped structure, the clamping blocks 1102 are symmetrically arranged on the outer side of the mounting block 11 at the upper end of the exhaust pipe 9, meanwhile, the clamping blocks 1102 and the clamping groove 901 form a clamping structure, the mounting block 11 and the exhaust pipe 9 can be clamped and connected by sliding the clamping blocks 1102 along the clamping groove 901, and the filter element 12 can be rapidly detached and replaced in the later period;

installation piece 11 and blast pipe 9 clearance fit, and the lower surface of installation piece 11 bonds and has sealed rubber ring 1101 to sealed rubber ring 1101's section is the trapezium structure, and sealed rubber ring 1101 cooperates with seal groove 10 is unsmooth, can effectively improve the installation leakproofness between installation piece 11 and the blast pipe 9 through this structure, makes the toxic gas filter more abundant.

The working principle is as follows: when the coal drying device for the thermal power plant is used, firstly, as shown in fig. 2 and 4-5, the mounting block 11 is in clearance fit with the exhaust pipe 9, so that the clamping block 1102 vertically slides along the clamping groove 901, then the mounting block 11 is rotated, the clamping block 1102 can be clamped into the clamping groove 901, and the mounting of the filter element 12 is completed, as shown in fig. 1 and 3, high-heat smoke generated by coal combustion in the thermal power generation process is introduced into the smoke inlet 6, at the moment, the filter screen 601 can filter carbon ash in the high-heat smoke, when the high-heat smoke enters the heat-insulating cylinder 5, the heat-conducting block 301 can absorb and conduct heat in the high-heat smoke, so as to heat the drying cylinder 3, then the coal is uniformly poured into the feeding cylinder 4 through the conveying device, and then the spiral pushing rod 7 is controlled to slowly rotate, so that the coal can be slowly conveyed in the drying cylinder 3, at this moment, the drying cylinder 3 can utilize the heat absorbed from the high-heat flue gas to continuously dry the coal, so that the energy-saving and environment-friendly performance of the device is improved, as shown in fig. 1, certain toxic and harmful gas can be generated in the coal drying process, and the gas can flow upwards due to certain heat of the part of gas, so that the part of gas flows into the exhaust pipe 9, and the filter element 12 can effectively filter and purify the part of gas at this moment, so that a series of work is completed.

Those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a coal drying device for thermal power plant, includes base (1), a heat preservation section of thick bamboo (5) and filter core (12), its characterized in that: the top bolt fastening of base (1) has support frame (2), and the top bolt fastening of support frame (2) has a section of thick bamboo of drying (3) to the left end of section of thick bamboo of drying (3) is connected with feed cylinder (4), the outside of section of thick bamboo of drying (3) is provided with heat preservation section of thick bamboo (5), and the left end downside of heat preservation section of thick bamboo (5) has seted up into mouth (6), and the inboard bearing of section of thick bamboo of drying (3) is connected with spiral feed rod (7), smoke vent (8) have been seted up to the right-hand member upside of heat preservation section of thick bamboo (5), the right-hand member top of section of thick bamboo of drying (3) is provided with blast pipe (9), and the upper surface of blast pipe (9) has seted up seal groove (10) to the top of blast pipe (9) is provided with installation.

2. The coal drying device for the thermal power plant according to claim 1, characterized in that: the outer side of the drying cylinder (3) is uniformly provided with heat conducting blocks (301), the heat conducting blocks (301) are made of copper, and the heat conducting blocks (301) are not in contact with the heat preservation cylinder (5).

3. The coal drying device for the thermal power plant according to claim 1, characterized in that: the feeding cylinder (4) is of an arc tubular structure, and the feeding cylinder (4) and the drying cylinder (3) are of an integrated structure.

4. The coal drying device for the thermal power plant according to claim 1, characterized in that: the heat-preserving cylinder (5) and the drying cylinder (3) are of a sleeving structure, and a filter screen (601) is arranged on the inner side of a smoke inlet (6) formed in the outer side of the heat-preserving cylinder (5).

5. The coal drying device for the thermal power plant according to claim 1, characterized in that: the exhaust pipe structure is characterized in that a clamping groove (901) is formed in the surface of the exhaust pipe (9), the clamping groove (901) is of an L-shaped structure, clamping blocks (1102) are symmetrically arranged on the outer side of an installation block (11) at the upper end of the exhaust pipe (9), and meanwhile the clamping blocks (1102) and the clamping groove (901) form a clamping structure.

6. The coal drying device for the thermal power plant according to claim 1, characterized in that: the mounting block (11) is in clearance fit with the exhaust pipe (9), the sealing rubber ring (1101) is bonded to the lower surface of the mounting block (11), the cross section of the sealing rubber ring (1101) is of a trapezoid structure, and meanwhile the sealing rubber ring (1101) is in concave-convex fit with the sealing groove (10).