Cyclone dust remover for hot-blast stove

Abstract

The utility model relates to the field of dust removers, in particular to a cyclone dust remover for a hot blast stove, which comprises a dust remover body, the dust remover body comprises a cyclone cylinder, a mounting step is arranged on the inner wall of the upper end of the cyclone cylinder, an annular water delivery seat arranged along the circumferential direction of the cyclone cylinder is arranged at the mounting step, and a water delivery cavity is arranged in the annular water delivery seat. A plurality of upward water spraying openings communicated with the water conveying cavity are formed in the annular water conveying base, a connector communicated with the water conveying cavity is arranged at the end of the annular water conveying base, and the end of the connector extends out of the cyclone barrel. Compared with the conventional common cyclone dust collector, the cyclone dust collector disclosed by the utility model has the advantages that the phenomenon that smoke dust with light weight in smoke cannot be thrown to the wall of the cyclone cylinder under the action of centrifugal force is avoided, so that the dust collection effect of the dust collector body is better improved.

Description

Technical Field

[0001] The utility model relates to the field of dust collectors, and more specifically, to a cyclone dust collector for a hot blast stove. Background Art

[0002] Hot blast stoves are currently widely used as heat sources in baking houses for agricultural products such as tobacco leaves and vegetables. Its working principle is as follows: The fuel is transported to the furnace of the hot blast stove through a feeding device for combustion. The flame heats the air in the heat exchanger to generate hot air, and the hot air is transported to the baking house to provide heat for the baking work. Since a large amount of soot is generated after the fuel burns, a dust collector is usually used to perform dust removal operations on the air after heat exchange. Currently, the commonly used dust collector is a cyclone dust collector. Although it can remove dust, because the dust particles in the flue gas are relatively light in mass, the ordinary cyclone dust collector cannot effectively remove the soot, so there will be a problem that the air containing soot is discharged. Summary of the Utility Model

[0003] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0004] A cyclone dust collector for a hot blast stove, which includes a dust collector body. The dust collector body includes a cyclone cylinder. An installation step is provided at the inner wall of the upper end of the cyclone cylinder. An annular water supply seat is provided at the installation step and is arranged circumferentially along the cyclone cylinder. A water supply cavity is provided in the annular water supply seat. A plurality of water spray nozzles are provided upward at the annular water supply seat and communicate with the water supply cavity. A connection head communicating with the water supply cavity is provided at the end of the annular water supply seat, and the end of the connection head extends out of the cyclone cylinder.

[0005] As a preferred solution of the utility model, a cyclone opening is provided at the top end of the cyclone cylinder. A cover plate for sealing it is provided at the cyclone opening, and an exhaust pipe is provided at the center of the cover plate. A strip-shaped groove extending from the cyclone opening to the installation step is further provided at the side wall of the top end of the cyclone cylinder, and a strip-shaped plate for transitional fit with the strip-shaped groove is provided at the cover plate.

[0006] As a preferred solution of the utility model, an annular gasket is provided at the annular water supply seat and is arranged circumferentially along the annular water supply seat. An annular plate for pressing the annular gasket against the inner wall of the cyclone cylinder and the annular water supply seat is provided in the cyclone cylinder, and a connecting column connected to the annular plate is provided at the cover plate.

[0007] As a preferred solution of the utility model, a flange is provided at the upper end of the cyclone cylinder at the cyclone opening, and the cover plate is bolted to the flange.

[0008] As a preferred solution of the utility model, an air inlet pipe communicating with the cyclone cylinder is provided at the upper end of the cyclone cylinder, and an ash discharge port is provided at the bottom end of the cyclone cylinder.

[0009] As a preferred solution of the present utility model, a water inlet pipe is connected to the connection head extending out of the cyclone cylinder.

[0010] The present utility model adopts the above technical solutions, and the beneficial effects that can be achieved are as follows:

[0011] Compared with the currently common cyclone dust collectors, by injecting water mist into the cyclone cylinder, the soot in the flue gas can be more easily combined with the water mist to form larger particles, which are then thrown to the inner wall of the cyclone cylinder under the action of centrifugal force and discharged from the ash discharge port. This avoids the situation where the lighter soot in the flue gas cannot be thrown to the cylinder wall of the cyclone cylinder under the action of centrifugal force, thus preferably improving the dust removal effect of the dust collector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. 1 is a schematic structural diagram of a cyclone dust collector for a hot blast stove in Embodiment 1.

[0013] Figure 2 is Figure 1 a cross-sectional view of the cyclone dust collector for a hot blast stove in

[0014] Figure 3 is Figure 2 an enlarged view of part A in

[0015] Figure 4 is Figure 1 an exploded view of the structure of the cyclone dust collector for a hot blast stove in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the drawings and embodiments. It should be understood that the embodiments are only for explaining the present utility model and not for limiting it.

[0017] Embodiment 1

[0018] As Figures 1-3 shown, this embodiment provides a cyclone dust collector for a hot blast stove, which includes a dust collector body 100. The dust collector body 100 includes a cyclone cylinder 110. An air inlet pipe 130 communicating with the cyclone cylinder 110 is provided at the upper end of the cyclone cylinder 110, and an ash discharge port 220 is provided at the bottom end of the cyclone cylinder 110. An installation step 310 is provided at the inner wall of the upper end of the cyclone cylinder 110. An annular water delivery seat 320 arranged along the circumferential direction of the cyclone cylinder 110 is provided at the installation step 310. A water delivery cavity 340 is provided in the annular water delivery seat 320. A plurality of upwardly arranged water spray nozzles 350 communicating with the water delivery cavity 340 are provided at the annular water delivery seat 320. A connection head 360 communicating with the water delivery cavity 340 is provided at the end of the annular water delivery seat 320. The end of the connection head 360 extends out of the cyclone cylinder 110, and a water inlet pipe 140 is connected to the end of the connection head 360 extending out of the cyclone cylinder 110.

[0019] During use, water flow is sent into the annular water delivery base 320 through the water inlet pipe 140, and the water flow sprays out from the water spray nozzles 350. The heat-exchanged flue gas is sent into the cyclone 110 through the air inlet pipe 130 by a blower. After the flue gas enters the cyclone 110, the flue gas rotates at a high speed in a spiral shape from top to bottom. During the rotation, the dust particles combine with the water mist, and under the action of a large centrifugal force, they are thrown to the inner wall of the cyclone 110 and collide with the wall surface, gradually losing speed, and then fall along the wall of the cyclone 110 to the conical part under the action of gravity, and finally are discharged from the bottom ash discharge port 220.

[0020] In this embodiment, the cyclone dust collector for the hot blast stove compared with the currently common cyclone dust collector, by blowing water mist into the cyclone 110, enables the dust in the flue gas to be more easily combined with the water mist to form larger particles, so that under the action of the centrifugal force, they are thrown to the inner wall of the cyclone 110 and discharged from the ash discharge port 220, thus avoiding the lighter dust in the flue gas from not being thrown to the wall of the cyclone 110 under the action of the centrifugal force, and thus preferably improving the dust removal effect of the dust collector body 100. Among them, by blowing the flue gas into the cyclone 110 by a blower, the atomization effect of the water flow in the cyclone 110 can be further improved, making the water mist more easily combined with the dust in the flue gas, thereby further improving the dust removal effect of the dust collector body 100.

[0021] Combined Figure 4 As shown, a cyclone opening 410 is provided at the top end of the cyclone 110. A cover plate 120 for sealing it is provided at the cyclone opening 410. A flange 440 is provided at the upper end of the cyclone 110 at the cyclone opening 410, and the cover plate 120 is bolted to the flange 440. An exhaust pipe 210 is provided at the center of the cover plate 120; a strip-shaped groove 420 extending from the cyclone opening 410 to the installation step 310 is further provided at the side wall of the top end of the cyclone 110, and a strip-shaped plate 430 for transitional fit with the strip-shaped groove 420 is provided at the cover plate 120.

[0022] In this embodiment, through the setting of the strip-shaped groove 420, the connector 360 can be moved to the installation step 310, thus realizing the installation of the annular water delivery base 320. Through the setting of the strip-shaped plate 430, it can not only cooperate with the strip-shaped groove 420 to fix the annular water delivery base 320, but also realize the sealing of the strip-shaped groove 420.

[0023] In this embodiment, an annular gasket 370 is provided at the annular water delivery base 320 and arranged circumferentially along the annular water delivery base 320. An annular plate 380 is provided in the cyclone 110 for pressing the annular gasket 370 against the inner wall of the cyclone 110 and at the annular water delivery base 320. A connecting column 390 connected to the annular plate 380 is provided at the cover plate 120.

[0024] In this embodiment, through the arrangement of the annular gasket 370 and the annular plate 380, the water-containing dust particles thrown to the upper barrel wall of the cyclone 110 can flow to the bottom end of the cyclone 110 via the annular gasket 370 and the annular water delivery base 320, thus avoiding the accumulation of water-containing dust particles in the gap between the inner wall of the cyclone 110 and the outer wall of the annular water delivery base 320 and jamming the annular water delivery base 320, thereby preferably improving the stability of the dust collector body 100 during use.

[0025] In summary, the above are only the preferred embodiments of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A Shaklon dust collector for a hot blast stove, characterized in that: The invention comprises a dust collector body (100), wherein the dust collector body (100) comprises a cyclone barrel (110), wherein an installation step (310) is provided at the inner wall of the upper end of the cyclone barrel (110), wherein an annular water delivery seat (320) is provided at the installation step (310) and is arranged along the circumference of the cyclone barrel (110), wherein a water delivery cavity (340) is arranged in the annular water delivery seat (320), wherein a plurality of water spray ports (350) arranged upward and in communication with the water delivery cavity (340) are arranged at the annular water delivery seat (320), wherein a connector (360) in communication with the water delivery cavity (340) is provided at the end of the annular water delivery seat (320), wherein the end of the connector (360) extends out of the cyclone barrel (110).

2. The Shaklon dust collector for a hot blast stove according to claim 1, characterized in that: A cyclone opening (410) is provided at the top end of the cyclone (110), a cover plate (120) for sealing the cyclone opening (410) is provided at the cyclone opening (410), and an exhaust pipe (210) is provided at the center of the cover plate (120); a strip groove (420) extending from the cyclone opening (410) to the installation step (310) is also provided at the side wall at the top end of the cyclone (110), and a strip plate (430) for transitionally matching with the strip groove (420) is provided at the cover plate (120).

3. The Shaklon dust collector for a hot blast furnace according to claim 2, characterized in that: An annular gasket (370) is provided at the annular water delivery seat (320) and is arranged along the circumference of the annular water delivery seat (320); an annular plate (380) is provided in the cyclone barrel (110) for pressing the annular gasket (370) against the inner wall of the cyclone barrel (110) and the annular water delivery seat (320); and a connecting column (390) connected to the annular plate (380) is provided at the cover plate (120).

4. The Shaklon dust collector for a hot blast furnace according to claim 2, characterized in that: The upper end of the cyclone barrel (110) is provided with a flange (440) located at the cyclone barrel opening (410), and the cover plate (120) and the flange (440) are connected by bolts.

5. The Shaklon dust collector for a hot blast furnace according to claim 1, characterized in that: An air inlet pipe (130) communicating with the cyclone barrel (110) is provided at the upper end of the cyclone barrel (110), and an ash discharge port (220) is provided at the bottom end of the cyclone barrel (110).

6. The Shaklon dust collector for a hot blast furnace according to claim 1, characterized in that: The connector (360) extends out of the cyclone barrel (110) and is connected to a water inlet pipe (140).

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