CN211328557U - Bag-type dust collector - Google Patents
Bag-type dust collector Download PDFInfo
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- CN211328557U CN211328557U CN201921944871.3U CN201921944871U CN211328557U CN 211328557 U CN211328557 U CN 211328557U CN 201921944871 U CN201921944871 U CN 201921944871U CN 211328557 U CN211328557 U CN 211328557U
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- dust collector
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- inlet pipe
- steam heater
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Abstract
The utility model relates to a bag-type dust collector, which comprises a dust collector shell, an air inlet pipe and a steam heater, wherein the upper end of the dust collector shell is provided with an air inlet, and the lower end of the dust collector shell is provided with an ash discharge port; the air inlet pipe is connected with an air inlet of the dust remover shell and extends into the dust remover shell; the upper part of the dust remover shell is also provided with an air outlet; the steam heater is arranged at the lower part of the dust remover shell and is positioned below the air inlet pipe, a steam inlet pipe and a condensed water outlet pipe of the steam heater respectively penetrate through the side wall of the dust remover shell, and the steam inlet pipe of the steam heater is connected with a steam outlet of an external steam generator. The utility model provides an among the prior art because the lower easy dewfall that produces of coal gas temperature wets the filter bag, and then causes the unable technical problem who uses of filter bag.
Description
Technical Field
The utility model relates to a dust collecting equipment technical field, in particular to a sack cleaner for promoting coal gas temperature, prevent dewfall.
Background
The bag-type dust collector is a dust collector commonly applied at present, is a dry dust filter and is suitable for collecting fine, dry and non-fibrous dust. The filter bag is generally made of woven filter cloth or non-woven felt, and the filter bag filters dust-containing gas by utilizing the filtering action of fiber fabrics, and the working principle is as follows: after the dust-containing gas enters the bag-type dust collector, the dust with large particles and large specific gravity settles down under the action of gravity and falls into the dust hopper, and the dust is blocked when the gas containing smaller dust passes through the filter bag, so that the gas is purified.
However, in the low-temperature gas dust removal system, due to the fact that the gas temperature is low, dew condensation is easy to generate and the filter bag is wetted, and the filter bag cannot be used.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sack cleaner to solve among the prior art because the lower easy dewfall that produces of coal gas temperature drenches the filter bag, and then causes the unable technical problem who uses of filter bag.
In order to solve the problems, the utility model provides a bag-type dust collector, which comprises a dust collector shell, an air inlet pipe and a steam heater, wherein the upper end of the dust collector shell is provided with an air inlet, and the lower end of the dust collector shell is provided with an ash discharge port; the air inlet pipe is connected with an air inlet of the dust remover shell and extends into the dust remover shell; the upper part of the dust remover shell is also provided with an air outlet;
the steam heater is arranged at the lower part of the dust remover shell and is positioned below the air inlet pipe, a steam inlet pipe and a condensed water outlet pipe of the steam heater respectively penetrate through the side wall of the dust remover shell, and the steam inlet pipe of the steam heater is connected with a steam outlet of an external steam generator.
Preferably, the steam heater is made of at least one heat exchange tube wound in a cylindrical spiral shape.
Preferably, the heat exchange tube of the steam heater is made of corrosion-resistant materials or subjected to corrosion-resistant surface treatment.
Preferably, the steam heater is arranged in the dust remover shell through a hanging device.
Preferably, the steam heater and the hanging device are fixed through a single hanging point.
Preferably, a steam inlet and a condensed water outlet are respectively formed in the side wall of the dust remover shell, and the outer wall of a steam inlet pipe of the steam heater is hermetically connected with the steam inlet; and the outer wall of a condensed water outlet pipe of the steam heater is hermetically connected with the condensed water outlet.
Preferably, the upper part of the dust remover shell is also provided with a diffusing pipe interface.
Preferably, the air inlet pipe comprises an inlet pipe and a flared pipe which are communicated with each other, the inlet pipe is connected from an air inlet of the dust remover shell and extends to the middle part of the dust remover shell, the flared pipe is positioned below the inlet pipe, and the lower end of the inlet pipe is fixedly connected with the small-diameter end of the flared pipe;
the steam heater is positioned right below the large-diameter end of the flared tube.
Preferably, the outer diameter of the steam heater is larger than that of the large-diameter end of the flared tube.
Preferably, the dust remover shell comprises an upper straight cylinder body and a lower inverted cone which are communicated in sequence, the air inlet, the air outlet and the interface of the diffusing pipe are all arranged on the upper straight cylinder body, and the ash discharge port is arranged at the lower end of the lower inverted cone;
the steam heater is positioned between the upper straight barrel body and the lower inverted cone body.
Compared with the prior art, the utility model discloses there are following technological effect:
the utility model provides a sack cleaner heats the lower coal gas of temperature in the dust remover casing through steam heater, prevents that coal gas from drenching the filter bag and then causing the unable use of filter bag because of producing the dewfall.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts. In the drawings:
FIG. 1 is a schematic structural view of a bag-type dust collector according to an embodiment of the present invention
Fig. 2 is a top view of a bag dust collector provided in a preferred embodiment of the present invention.
Detailed Description
The bag-type dust collector provided by the present invention will be described in detail with reference to fig. 1 to 2, and this embodiment is implemented on the premise of the technical solution of the present invention, and a detailed embodiment and a specific operation process are given, however, the protection scope of the present invention is not limited to the following embodiments, and those skilled in the art can modify and color-polish the bag-type dust collector without changing the spirit and content of the present invention.
Referring to fig. 1 and 2, a bag-type dust collector includes a dust collector housing 1, an air inlet pipe 2 and a steam heater 4, wherein an air inlet is formed at the upper end of the dust collector housing 1, and an ash discharge port 121 is formed at the lower end of the dust collector housing 1; the air inlet pipe 2 is connected from an air inlet of the dust remover shell 1 and extends into the dust remover shell 1; the upper part of the dust remover shell 1 is also provided with an air outlet;
the steam heater 4 is arranged in the dust remover shell 1 and is positioned below the air inlet pipe 2, a steam inlet pipe 41 and a condensed water outlet pipe 42 of the steam heater 4 respectively penetrate through the side wall of the dust remover shell 1, and the steam inlet pipe 41 of the steam heater 4 is connected with a steam outlet of an external steam generator. In order to improve the heat efficiency, the present embodiment preferably provides the steam heater 4 at the lower portion of the dust collector case 1.
In this embodiment, dust remover casing 1 is including the straight barrel of upper portion 11 and the back taper 12 of lower part that communicate in proper order, and in this embodiment, the straight barrel of upper portion 11 and the structure as an organic whole of back taper 12 have set firmly the card on the upper portion in the straight barrel of upper portion 11, have seted up a plurality of round holes on the card, and every round hole below all sets up a filter bag. The upper straight cylinder body 11 is provided with an air inlet, an air outlet and a diffusing pipe interface 111, and the air inlet, the air outlet and the diffusing pipe interface 111 are all positioned above the pattern plate; the ash discharge port 121 is formed at the lower end of the lower inverted cone 12.
The air inlet pipe 2 comprises an inlet pipe 21 and a flared pipe 22 which are communicated with each other, the inlet pipe 21 is connected from the air inlet and extends to the middle lower part of the upper straight cylinder 11, the flared pipe 22 is positioned below the inlet pipe 21, and the lower end of the inlet pipe 21 is fixedly connected with the small-diameter end of the flared pipe 22; in this embodiment, the outer wall of the intake pipe 2 is hermetically connected to the intake port. The bottom of the flare 22 is lower than the bottom of the bag.
The steam heater 4 is located right below the large-diameter end of the flared tube 22 and between the upper straight cylinder 11 and the lower inverted cone 12. In order to heat the gas flowing out of the bell pipe 22 by the steam heater 4, the width of the steam heater 4 is larger than the diameter of the large diameter end of the bell pipe 22, and the large diameter end of the bell pipe 22 is close to the upper end of the steam heater 4. In the present embodiment, the steam heater 4 is made of at least one heat exchange tube wound in a cylindrical spiral shape, and thus, the spiral diameter of the cylindrical spiral heat exchange tube is larger than the diameter of the large-diameter end of the bell-shaped tube 22.
A steam inlet is formed in the side wall of the lower part of the upper straight cylinder body 11, a condensed water outlet is formed in the side wall of the lower inverted cone body 12, the outer wall of a steam inlet pipe 41 of the steam heater 4 is connected with the steam inlet in a sealing manner, and the steam inlet pipe 41 of the steam heater 4 is connected with a steam outlet of an external steam generator; the outer wall of the condensed water outlet pipe 42 of the steam heater is hermetically connected with the condensed water outlet.
In this embodiment, the temperature of the steam introduced into the steam inlet pipe 41 of the steam heater 4 by the external steam generator is about 160 ℃.
The steam heater 4 is hung in the dust remover shell 1 through the hanging device 3, and the steam heater 4 and the hanging device 3 are fixed through a single hanging point. The utility model discloses do not restrict hanging device 3's concrete structure, as long as can hang steam heater 4 can in the dust remover casing 1. In this embodiment, the hanging device 3 is fixed on the inner wall of the dust collector shell 1 through bolts, one point of the heat exchange tube of the steam heater 4 is fixedly connected with the hanging device 3, and other points are all in a suspended state, so that when steam is introduced into the steam heater 4, the heat exchange tube can generate displacement and retract into the cooling chamber along with the rise of temperature, and the embodiment adopts a single hanging point fixing mode, and reliably absorbs the displacement generated by the heat exchange tube due to expansion with heat and contraction with cold.
In the present embodiment, the heat exchange pipe of the steam heater 4 is made of a corrosion-resistant material or a corrosion-resistant surface treatment to improve its service life and reliability.
In the present embodiment, the steam heater 4 is not in contact with the inner wall of the dust collector case 1.
In this embodiment, the manhole 112 is further opened on the upper straight cylinder 11, and the bin wall vibrator is installed on the outer sidewall of the lower inverted cone 12, so as to facilitate the discharge of large particle dust. The filter bag outlet 122 is arranged on the outer side wall of the lower inverted cone 12.
The utility model discloses a theory of operation:
coal gas enters the dust remover shell 1 through the air inlet pipe 2, and steam enters the heat exchange pipe of the steam heater 4 through the steam inlet pipe 41 so as to heat the coal gas outside the heat exchange pipe, improve the temperature of the coal gas and prevent the coal gas from dewing and wetting a filter bag.
The utility model is used for among the intermittent type formula low temperature coal gas dust pelletizing system, if use in blast furnace voltage-sharing coal gas recovery system for promote the coal gas temperature, prevent that coal gas dewfall from and drench the filter bag.
The disclosure above is only one specific embodiment of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (10)
1. A bag-type dust collector is characterized by comprising a dust collector shell, an air inlet pipe and a steam heater, wherein the upper end of the dust collector shell is provided with an air inlet, and the lower end of the dust collector shell is provided with an ash discharge port; the air inlet pipe is connected with an air inlet of the dust remover shell and extends into the dust remover shell; the upper part of the dust remover shell is also provided with an air outlet;
the steam heater is arranged at the lower part of the dust remover shell and is positioned below the air inlet pipe, a steam inlet pipe and a condensed water outlet pipe of the steam heater respectively penetrate through the side wall of the dust remover shell, and the steam inlet pipe of the steam heater is connected with a steam outlet of an external steam generator.
2. The bag-type dust collector defined in claim 1 wherein said steam heater is formed of at least one heat exchange tube wound in a cylindrical spiral.
3. The bag-type dust collector of claim 2, wherein the heat exchange tube of the steam heater is made of a corrosion-resistant material or a corrosion-resistant surface treatment.
4. The bag-type dust collector of claim 1 wherein said steam heater is disposed within said collector housing by a hanging device.
5. The bag-type dust collector of claim 4 wherein the steam heater is secured to the hanger by a single point of attachment.
6. The bag-type dust collector of claim 1, wherein a steam inlet and a condensed water outlet are respectively formed on the side wall of the dust collector shell, and the outer wall of a steam inlet pipe of the steam heater is hermetically connected with the steam inlet; and the outer wall of a condensed water outlet pipe of the steam heater is hermetically connected with the condensed water outlet.
7. The bag-type dust collector of claim 1, wherein the upper part of the dust collector shell is further provided with a diffusing pipe interface.
8. The bag-type dust collector of claim 7, wherein the inlet pipe comprises an inlet pipe and a flared pipe which are communicated with each other, the inlet pipe is connected from the air inlet of the dust collector shell and extends to the middle part of the dust collector shell, the flared pipe is positioned below the inlet pipe, and the lower end of the inlet pipe is fixedly connected with the small-diameter end of the flared pipe;
the steam heater is positioned right below the large-diameter end of the flared tube.
9. The bag-type dust collector of claim 8 wherein the steam heater has an outer diameter greater than the outer diameter of the large diameter end of the flared tube.
10. The bag-type dust collector according to claim 8, wherein the dust collector housing comprises an upper straight cylinder and a lower inverted cylinder which are communicated with each other in sequence, the air inlet, the air outlet and the interface of the diffusing pipe are all arranged on the upper straight cylinder, and the ash discharge port is arranged at the lower end of the lower inverted cylinder;
the steam heater is positioned between the upper straight barrel body and the lower inverted cone body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944871.3U CN211328557U (en) | 2019-11-12 | 2019-11-12 | Bag-type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944871.3U CN211328557U (en) | 2019-11-12 | 2019-11-12 | Bag-type dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211328557U true CN211328557U (en) | 2020-08-25 |
Family
ID=72103935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921944871.3U Active CN211328557U (en) | 2019-11-12 | 2019-11-12 | Bag-type dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211328557U (en) |
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2019
- 2019-11-12 CN CN201921944871.3U patent/CN211328557U/en active Active
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