CN213778158U

CN213778158U - Novel coal fired boiler convenient to deashing

Info

Publication number: CN213778158U
Application number: CN202022431913.2U
Authority: CN
Inventors: 黄伟
Original assignee: Dongfang Boiler Group Co Ltd
Current assignee: Dongfang Boiler Group Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-23
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses a novel coal fired boiler convenient to deashing, a serial communication port, including furnace body (8), install water tank (1) in furnace body (8) top, set up in water tank (1) one end and with preceding smoke box (2) of furnace body (8) intercommunication, set up back smoke box (3) on the water tank (1) other end, both ends run through heat exchange tube (15) of water tank (1) back respectively with preceding smoke box (2) and back smoke box (3) intercommunication, install motor (5) on furnace body (8), one end is installed at furnace body (1) inner wall, screw rod (12) of being connected with motor (5) main shaft behind the other end stretching out the furnace body, install nut (14) on screw rod (12), the setting just with water tank (1) bottom matched with U-shaped scraper blade (13) on nut (14). The utility model discloses be provided with the U-shaped scraper blade, when the screw rod drove the U-shaped scraper blade and remove, the water tank bottom can be scraped to the U-shaped scraper blade to clear away the spot of water tank bottom, improve water heating efficiency.

Description

Novel coal fired boiler convenient to deashing

Technical Field

The utility model relates to an energy-saving boiler field specifically indicates a novel coal fired boiler convenient to deashing.

Background

A boiler is an energy conversion apparatus, which has been widely used in industrial production. The boiler heats water by means of heat exchange, so as to provide people with life and production use. Coal-fired boilers belong to one type of boilers, and are boilers using coal as fuel, and are widely used at present. The traditional coal-fired boiler has certain defects that after the traditional coal-fired boiler is used for a long time, a layer of thick stain is accumulated below a water tank, and the heating efficiency of water in the water tank is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide a novel coal fired boiler convenient to deashing.

The purpose of the utility model is realized through the following technical scheme: a novel coal-fired boiler convenient for ash removal comprises a boiler body, a water tank arranged above the boiler body, a front smoke box arranged at one end of the water tank and communicated with the boiler body, a rear smoke box arranged at the other end of the water tank, heat exchange tubes, a motor, a screw rod, a nut and a U-shaped scraper blade, wherein the heat exchange tubes are respectively communicated with the front smoke box and the rear smoke box after penetrating through the water tank at two ends; the nut can move along the screw rod, and the U-shaped scraper blade can sweep the bottom of the water tank when the nut moves.

A partition plate is arranged in the furnace body, and a slag discharge hole is formed in the partition plate.

And the rear smoke box is provided with a dust filtering mechanism.

The dust filtering mechanism comprises an upper mounting plate arranged at the upper end of the rear smoke box, a lower mounting plate arranged at the lower end of the rear smoke box and a dust removal cloth bag arranged between the upper mounting plate and the lower mounting plate.

And a smoke outlet is formed in one side of the rear smoke box, which is far away from the water tank.

The upper end of the rear smoke box is provided with an upper opening, and the upper mounting plate covers the upper opening; go up and be formed with the convex surface on the mounting panel, then be formed with the concave surface on the back smoke box, go up convex surface on the mounting panel and the concave surface on the back smoke box and cooperate.

A sealing gasket is arranged between the convex surface of the upper mounting plate and the concave surface of the rear smoke box.

The lower end of the rear smoke box is provided with a lower opening, the lower end of the lower mounting plate is provided with a plug for plugging the lower opening, the lower end of the lower mounting plate is also provided with an annular magnet and a sealing ring sleeved outside the annular magnet, and the plug is positioned in the middle of the annular magnet; the diameter of the annular magnet is larger than that of the lower opening.

The furnace body is provided with a feed inlet and an air blower, the feed inlet is positioned above the partition plate, and the air blower is positioned below the partition plate.

The lower end of the furnace body is provided with a slag removal port.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the utility model discloses be provided with the U-shaped scraper blade, when the screw rod drove the U-shaped scraper blade and remove, the water tank bottom can be scraped to the U-shaped scraper blade to clear away the spot of water tank bottom, improve water heating efficiency.

(2) The utility model discloses a be provided with dust filtering mechanism on the back smoke box, can filter the dust in the flue gas through dust filtering mechanism, prevent dust pollution atmosphere.

(3) The utility model discloses a dust filtering mechanism's lower extreme passes through annular magnet and adsorbs on the smoke box of back, only needs to loosen the bolt on the mounting panel during dismantlement, upwards pushes up the end cap, can take off whole dust filtering mechanism, conveniently clears up the dust removal sack.

Drawings

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is a schematic view of the furnace body of the utility model after being cut open.

Fig. 3 is a schematic view of the U-shaped scraper and the water tank of the present invention.

Fig. 4 is a sectional view of the present invention.

Fig. 5 is an enlarged view of a portion a in fig. 4 according to the present invention.

Fig. 6 is an enlarged view of the point B in fig. 4 according to the present invention.

The reference numbers in the above figures refer to: 1-water tank, 2-front smoke box, 3-rear smoke box, 4-smoke outlet, 5-motor, 6-blower, 7-slag removing outlet, 8-furnace body, 9-charging opening, 10-partition plate, 11-slag discharging hole, 12-screw, 13-U-shaped scraper, 14-nut, 15-heat exchange tube, 16-upper mounting plate, 17-dust removal cloth bag, 18-sealing gasket, 19-lower mounting plate, 20-sealing ring, 21-annular magnet and 22-plug.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

Examples

As shown in figures 1-6, the utility model discloses a novel coal fired boiler convenient to deashing, including furnace body 8, install the water tank 1 in furnace body 8 top. The furnace body 8 is provided with a feed inlet 9 and an air blower 6, and the lower end of the furnace body 8 is provided with a slag removal port 7. When in use, fire coal is added into the furnace body 8 from the feed inlet 9, and air is blown into the furnace body 8 through the blower 6 to combust the fire coal, thereby heating the water in the water tank 1.

As shown in fig. 2, a partition plate 10 is arranged in the furnace body 8, and a slag discharge hole 11 is formed in the partition plate 10. The feed inlet 9 is positioned above the partition plate 10, and the blower 6 is positioned below the partition plate 10. The added coal falls onto the partition board 10 and is combusted on the partition board 10, and the combusted coal slag falls from the slag discharge hole 11 and can be removed through the slag removal port 7.

One end of the water tank 1 is connected with a front smoke box 2, and the front smoke box 2 is communicated with the furnace body 8. The other end of the water tank 1 is connected with a rear smoke box 3. The water tank 1 is internally provided with a heat exchange tube 15, the two ends of which penetrate through the water tank 1 and are respectively communicated with the front smoke box 2 and the rear smoke box 3. High-temperature flue gas generated by combustion enters the front smoke box 2 and is conveyed to the rear smoke box 3 through the heat exchange tube 15, and the high-temperature flue gas exchanges heat with water in the water tank 1 in the flowing process of the high-temperature flue gas in the heat exchange tube 15 to heat the water in the water tank 1.

The furnace body 8 is provided with a motor 5, the furnace body 8 is internally provided with a screw 12, one end of the screw is arranged on the inner wall of the furnace body 8, the other end of the screw extends out of the furnace body and then is connected with a main shaft of the motor 5, the screw 12 is provided with a nut 14, and the nut 4 is connected with a U-shaped scraper 13. The U-shaped scraper 13 engages the bottom of the tank 1 as shown in figure 3. When the motor 5 drives the screw 12 to rotate, the nut 14 can move along the screw 12, and the U-shaped scraper 13 can sweep the bottom of the water tank 1 when the nut 14 moves. By the sweeping of the U-shaped scraper 13, the dirt at the bottom of the water tank 1 is scraped off, and the dirt is prevented from influencing the heating efficiency of the water.

In order to prevent the dust in the smoke from entering the atmosphere, as shown in fig. 4, a dust filtering mechanism is provided on the rear smoke box 3. Specifically, the dust filtering mechanism comprises an upper mounting plate 16 arranged at the upper end of the rear smoke box 3, a lower mounting plate 19 arranged at the lower end of the rear smoke box 3, and a dust removing cloth bag 17 arranged between the upper mounting plate 16 and the lower mounting plate 19. And a smoke outlet 4 is formed in one side of the rear smoke box 3, which is far away from the water tank 1. The flue gas after heat exchange enters the rear smoke box, is filtered by the dust filtering mechanism and then is discharged from the smoke outlet 4.

In order to clean the dust on the dust removing cloth bag 17 conveniently, as shown in fig. 5 and 6, the upper end of the rear smoke box 3 is provided with an upper opening, and the upper mounting plate 16 covers the upper opening. Go up being formed with the convex surface on the mounting panel 16, then be formed with the concave surface on the smoke box, go up convex surface on the mounting panel 16 and the concave surface on the smoke box of back and cooperate, close the back on last opening when last mounting panel 16 lid, it is fixed with last mounting panel 16 through the bolt.

A gasket 18 is provided between the convex surface of the upper mounting plate 16 and the concave surface of the rear smoke box to improve the sealing effect.

The lower extreme of back smoke box 3 is opened there is the under shed, and the lower extreme of lower mounting panel 19 is provided with and is used for blockking up under shed's end cap 22, the lower extreme of lower mounting panel 19 still is provided with annular magnet 21 and overlaps the sealing washer 20 of establishing in the annular magnet 21 outside, end cap 22 is located annular magnet 21 centre. The diameter of the ring magnet 21 is larger than the diameter of the lower opening. The lower end of the dust filter mechanism is fixed to the bottom of the rear smoke box by a ring magnet 21, and the sealing performance is improved by a sealing ring 20.

When the dust filtering mechanism needs to be taken out, the bolts on the upper mounting plate are loosened, and the whole dust filtering mechanism can be taken out by upwards pushing the plugs 22 so as to clean the dust removing cloth bag. When installing dirt filtering mechanism, put into dirt filtering mechanism's lower extreme from the upper shed, the diameter of this lower mounting panel is less than the diameter of upper shed, stretches into back smoke box with the hand from the lower shed in, makes end cap 22 aim at the lower shed and stretch out from the lower shed, and annular magnet 21 then adsorbs in back smoke box bottom this moment to fixed dirt filtering mechanism.

As described above, the utility model discloses alright fine realization.

Claims

1. A novel coal-fired boiler convenient for ash removal is characterized by comprising a boiler body (8), a water tank (1) arranged above the boiler body (8), a front smoke box (2) arranged at one end of the water tank (1) and communicated with the boiler body (8), a rear smoke box (3) arranged at the other end of the water tank (1), a heat exchange pipe (15) with two ends penetrating through the water tank (1) and then respectively communicated with the front smoke box (2) and the rear smoke box (3), a motor (5) arranged on the boiler body (8), a screw rod (12) with one end arranged on the inner wall of the boiler body (8) and the other end extending out of the boiler body and connected with a main shaft of the motor (5), a nut (14) arranged on the screw rod (12), and a U-shaped scraper (13) arranged on the nut (14) and matched with the bottom of the water tank (1); the nut (14) can move along the screw rod (12), and the U-shaped scraper (13) can sweep the bottom of the water tank (1) when the nut (14) moves.

2. The novel coal-fired boiler convenient for ash removal according to claim 1, characterized in that a partition plate (10) is arranged in the boiler body (8), and the partition plate (10) is provided with a slag discharge hole (11).

3. The novel coal-fired boiler convenient for ash removal according to claim 1 or 2, characterized in that the rear smoke box (3) is provided with a dust filtering mechanism.

4. The novel coal-fired boiler convenient for ash removal according to claim 3, characterized in that the dust filtering mechanism comprises an upper mounting plate (16) mounted at the upper end of the rear smoke box (3), a lower mounting plate (19) mounted at the lower end of the rear smoke box (3), and a dust removing cloth bag (17) mounted between the upper mounting plate (16) and the lower mounting plate (19).

5. The novel coal-fired boiler convenient for ash removal according to claim 4, characterized in that a smoke exhaust port (4) is arranged on one side of the rear smoke box (3) far away from the water tank (1).

6. The novel coal-fired boiler convenient for ash removal according to claim 5, characterized in that the upper end of the rear smoke box (3) is provided with an upper opening, and the upper mounting plate (16) covers the upper opening; a convex surface is formed on the upper mounting plate (16), a concave surface is formed on the rear smoke box, and the convex surface on the upper mounting plate (16) is matched with the concave surface on the rear smoke box.

7. The novel coal-fired boiler convenient for ash removal according to claim 6, characterized in that a sealing gasket (18) is arranged between the convex surface of the upper mounting plate (16) and the concave surface of the rear smoke box.

8. The novel coal-fired boiler convenient for ash removal according to claim 7, characterized in that the lower end of the rear smoke box (3) is provided with a lower opening, the lower end of the lower mounting plate (19) is provided with a plug (22) for plugging the lower opening, the lower end of the lower mounting plate (19) is further provided with an annular magnet (21) and a sealing ring (20) sleeved outside the annular magnet (21), and the plug (22) is positioned in the middle of the annular magnet (21); the diameter of the annular magnet (21) is larger than that of the lower opening.

9. The novel coal-fired boiler convenient for ash removal according to claim 8, characterized in that the furnace body (8) is provided with a charging opening (9) and a blower (6), the charging opening (9) is positioned above the partition plate (10), and the blower (6) is positioned below the partition plate (10).

10. The novel coal-fired boiler convenient for ash removal according to claim 9, characterized in that the lower end of the furnace body (8) is provided with a slag removal port (7).