CN211782480U

CN211782480U - Coal drying device for thermal power generation

Info

Publication number: CN211782480U
Application number: CN202020434076.6U
Authority: CN
Inventors: 于海涛; 樊森辉; 张志博
Original assignee: Datang Yuncheng Power Generation Co Ltd
Current assignee: Datang Yuncheng Power Generation Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-10-27
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a coal drying device for thermal power, including insulation can and drying cabinet, the insulation can is hollow cuboid structure, the bottom fixedly connected with landing leg of insulation can, the fan has been run through to the bottom of insulation can, the both ends fixedly connected with support at the inside top of insulation can, two install the electric rod between the support, the both ends fixedly connected with guide post of the inside of insulation can, the fixed guide plate that has cup jointed on the guide post, the ventilation hole has been seted up on the guide plate, the drying cabinet is hollow cylinder structure, the solid fixed ring of side fixedly connected with of drying cabinet, gu fixed ring and guide post swing joint. The utility model discloses a set up motor and screw rod, make inside coal fully heated, the heating is even, and drying effect is good, through setting up handle, guide post and solid fixed ring, the coal of being convenient for takes out simple structure convenient to use.

Description

Coal drying device for thermal power generation

Technical Field

The utility model relates to a coal drying technology field especially relates to a coal drying device for thermal power.

Background

There are three types of energy conversion processes in thermal power generation: the chemical energy of the fuel → the heat energy of the steam → the mechanical energy → the electric energy, which is simply to say that the fuel is used for heating and heating water to form high-temperature high-pressure superheated steam, then the steam enters a steam turbine along a pipeline to continuously expand and do work to impact a rotor of the steam turbine to rotate at a high speed so as to drive a rotor (an electromagnetic field) of a generator to rotate, a stator coil cuts magnetic lines of force to generate electric energy, and then the electric energy is boosted to system voltage by using a boosting transformer to be connected with a system and is transmitted. Finally, the cooled steam is further boosted by a feed pump and sent back to the boiler to repeatedly participate in the circulation process.

In the existing thermal power generation process, in order to improve the full utilization of coal, the coal needs to be dried, but the existing equipment is inconvenient to take out the coal after the coal is dried, and is difficult to stir during drying, so that the use is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a coal drying device for thermal power generation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a coal drying device for thermal power generation comprises an insulation can and a drying box, wherein the insulation can is of a hollow cuboid structure, the bottom of the heat preservation box is fixedly connected with supporting legs, the bottom of the heat preservation box is penetrated with a fan, two ends of the top of the heat preservation box are fixedly connected with brackets, an electric heating rod is arranged between the two brackets, two ends of the interior of the heat preservation box are fixedly connected with guide columns, guide plates are fixedly sleeved on the guide columns, the guide plate is provided with a vent hole, the drying box is of a hollow cylindrical structure, the side surface of the drying box is fixedly connected with a fixing ring, the fixed ring is movably connected with the guide post, the top of the drying box is provided with a sealing plate, the top of the sealing plate is provided with a motor, and an output shaft of the motor is inserted into the drying box and connected with a screw rod.

Preferably, the bottom of the supporting leg is movably sleeved with a sleeve, the bottom of the sleeve is of a hollow cylindrical structure, and the bottom of the sleeve is fixedly connected with a fixing plate.

Preferably, the number of the supporting legs is four, springs are arranged between the bottoms of the supporting legs and the interior of the sleeve, and the number of the springs is two.

Preferably, the number of the vent holes is a plurality of, the electric heating rod is positioned right above the air outlet of the fan, and the vent holes are positioned right above the electric heating rod.

Preferably, the side of drying cabinet is provided with the handle, drying cabinet and guide plate swing joint.

Preferably, the top of the heat preservation box is sleeved with a heat preservation cover through threads, an exhaust pipe penetrates through the side face of the heat preservation box, and a shut-off valve is arranged inside the exhaust pipe.

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

when the utility model is used, coal is placed inside the drying box, the drying box is placed inside the heat preservation box by holding the handle, the drying box drives the fixing ring to move downwards along the axial direction of the guide post until the bottom of the drying box contacts with the upper surface of the guide plate, the heat preservation box is closed, the fan, the electric heating rod and the motor are started, the fan heats the external air through the electric heating rod and blows the air to the drying box through the ventilation holes on the guide plate, heating the inside of the drying oven, balancing the internal and external air pressure of the exhaust pipe, driving a screw rod by a motor, stirring the coal by the screw rod to fully heat the coal inside, uniformly heating, having good drying effect, cooling the drying oven to room temperature after drying is finished, the drying box is pulled upwards through the handle, the drying box drives the fixing ring to move upwards along the axial direction of the guide post, coal can be taken out conveniently, and the drying box is simple in structure and convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of a coal drying device for thermal power generation according to the present invention;

fig. 2 is a sectional view of a drying box of a coal drying device for thermal power generation according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a part a of a coal drying device for thermal power generation according to the present invention.

In the figure: 1 insulation can, 2 supporting legs, 3 sleeves, 4 springs, 5 fixing plates, 6 supports, 7 fans, 8 electric heating rods, 9 guide columns, 10 guide plates, 11 ventilation holes, 12 drying boxes, 13 fixing rings, 14 handles, 15 insulation covers, 16 sealing plates, 17 motors and 18 screws.

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.

Referring to fig. 1-3, a coal drying device for thermal power, including insulation can 1 and drying cabinet 12, insulation can 1 is hollow cuboid structure, bottom fixedly connected with landing leg 2 of insulation can 1, fan 7 has been run through to insulation can 1's bottom, the both ends fixedly connected with support 6 at insulation can 1 inside top, install electric rod 8 between two support 6, the both ends fixedly connected with guide post 9 of insulation can 1's inside, guide post 9 is last to be fixed to connect has guide plate 10, ventilation hole 11 has been seted up on the guide plate 10, drying cabinet 12 is hollow cylinder structure, the side fixedly connected with solid fixed ring 13 of drying cabinet 12, gu fixed ring 13 and guide post 9 swing joint, the top of drying cabinet 12 is provided with closing plate 16, motor 17 is installed at closing plate 16's top, the output shaft of motor 17 inserts the inside of drying cabinet 12 and is connected with screw rod 18.

Wherein, the bottom activity of landing leg 2 has cup jointed sleeve 3, and sleeve 3's bottom is hollow cylinder structure, and sleeve 3's bottom fixedly connected with fixed plate 5.

Wherein, the quantity of landing leg 2 is four, is provided with spring 4 between the bottom of landing leg 2 and the inside of sleeve 3, and the quantity of spring 4 is two sets of.

Wherein, the quantity of ventilation hole 11 is a plurality of, and the electric rod 8 is located directly over 7 air outlets of fan, and ventilation hole 11 is located directly over 8 electric rod.

Wherein, the side of drying cabinet 12 is provided with handle 14, and drying cabinet 12 and guide plate 10 swing joint.

Wherein, the top of insulation can 1 has been cup jointed through the screw thread and has been kept warm and cover 15, and the side of insulation can 1 runs through there is the blast pipe, and the inside of blast pipe is provided with the shutoff valve.

The working principle is as follows: when the coal drying device is used, coal is placed inside the drying box 12, the drying box 12 is placed inside the heat preservation box 1 by holding the handle 14, the drying box 12 drives the fixing ring 13 to move downwards along the axial direction of the guide post 9 until the bottom of the drying box 12 is contacted with the upper surface of the guide plate 10, the heat preservation rod 15 is closed, the fan 7, the electric heating rod 8 and the motor 17 are started, the fan 7 blows external air to the drying box 12 through the ventilation hole 11 on the guide plate 10 after the external air is heated by the electric heating rod 8, the inside and the outside air pressures of the drying box 12 are heated, the exhaust pipe balances the air pressure inside and outside, the motor 17 drives the screw rod 18, the screw rod 18 stirs the coal, the coal inside is fully heated, the heating is uniform, the drying effect is good, after the drying is finished, the drying box 12 is cooled to the room temperature, the drying box 12 is pulled upwards through the handle 14, the drying, the coal is convenient to take out, the structure is simple, and the use is convenient.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The coal drying device for thermal power generation comprises an insulation box (1) and a drying box (12), and is characterized in that the insulation box (1) is of a hollow cuboid structure, supporting legs (2) are fixedly connected to the bottom of the insulation box (1), a fan (7) penetrates through the bottom of the insulation box (1), brackets (6) are fixedly connected to two ends of the top of the interior of the insulation box (1), an electric heating rod (8) is installed between the two brackets (6), guide columns (9) are fixedly connected to two ends of the interior of the insulation box (1), a guide plate (10) is fixedly sleeved on each guide column (9), a ventilation hole (11) is formed in each guide plate (10), the drying box (12) is of a hollow cylinder structure, a fixing ring (13) is fixedly connected to the side face of the drying box (12), and the fixing ring (13) is movably connected with the guide columns (9), the drying box is characterized in that the top of the drying box (12) is provided with a sealing plate (16), the top of the sealing plate (16) is provided with a motor (17), and an output shaft of the motor (17) is inserted into the drying box (12) and connected with a screw (18).

2. The coal drying device for thermal power generation according to claim 1, wherein a sleeve (3) is movably sleeved at the bottom of the supporting leg (2), the bottom of the sleeve (3) is of a hollow cylindrical structure, and a fixing plate (5) is fixedly connected to the bottom of the sleeve (3).

3. Coal drying device for thermal power generation according to claim 2, characterized in that the number of legs (2) is four, springs (4) are arranged between the bottom of the legs (2) and the inside of the sleeve (3), and the number of springs (4) is two.

4. The coal drying device for thermal power generation according to claim 1, wherein the number of the ventilation holes (11) is several, the electric heating rod (8) is located right above the air outlet of the fan (7), and the ventilation holes (11) are located right above the electric heating rod (8).

5. The coal drying device for thermal power generation according to claim 1, characterized in that a handle (14) is arranged on the side of the drying box (12), and the drying box (12) is movably connected with the deflector (10).

6. The coal drying device for thermal power generation according to claim 1, wherein a heat insulating cover (15) is sleeved on the top of the heat insulating box (1) through a screw thread, an exhaust pipe penetrates through the side surface of the heat insulating box (1), and a shut-off valve is arranged inside the exhaust pipe.