CN210934174U - Pulse type dust collector capable of efficiently collecting dust - Google Patents
Pulse type dust collector capable of efficiently collecting dust Download PDFInfo
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- CN210934174U CN210934174U CN201921824471.9U CN201921824471U CN210934174U CN 210934174 U CN210934174 U CN 210934174U CN 201921824471 U CN201921824471 U CN 201921824471U CN 210934174 U CN210934174 U CN 210934174U
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Abstract
A pulse type dust collector for efficiently collecting dust relates to the field of cement processing equipment and comprises a shell and a working cavity positioned in the shell, wherein the working cavity comprises a clean gas area and a filtering area; a plurality of filter bags are arranged in the filter area, a partition plate is arranged in the middle of each filter bag, and the filter bags are divided into an upper filter bag and a lower filter bag which are relatively independent by the partition plates. A first back-blowing branch pipe is arranged in the upper filter bag; and a second back-blowing branch pipe is arranged in the lower filter bag. The pore diameter of the air holes on the clapboard is small, under the condition of normal filtration, the air flow velocity is slow, so that the air flow cannot be blocked, but when high-pressure pulse air flow is introduced, the air cannot pass through the air holes, and therefore instantaneous expansion can be formed in the upper filter bag and the lower filter bag. Meanwhile, due to the separation of the partition plate, the volumes of the upper filter bag and the lower filter bag are relatively small, and after high-pressure pulse airflow is introduced, the effect of instant expansion can be better achieved, and the dust stripping and recycling efficiency is guaranteed.
Description
Technical Field
The utility model relates to a cement processing equipment field particularly, relates to a pulsed dust collector that high efficiency was gathered dust.
Background
The pulse bag type dust collector is a dry dust filtering device. It is suitable for trapping fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and the dust-containing gas is filtered by utilizing the filtering action of the fiber fabric. After the dust-containing gas enters the bag type dust collector, the dust with large particles and large specific gravity is settled down under the action of gravity and falls into a material collecting area, while the gas containing fine dust is intercepted on the surface of the filter bag when the filter bag is communicated, and the gas can pass through the filter bag to be purified. Meanwhile, after the filtration is finished, high-pressure gas is filled into the filter bag from the top of the filter bag, so that the filter bag expands and deforms instantly, dust attached to the surface of the filter bag is stripped, and the dust falls into a material collecting area to be recovered. The filtration efficiency of the pulse type bag type dust collector is related to the filtration area, and the floor area of the bag type dust collector is usually increased, so that the number of filter bags is increased. However, for enterprises which cannot or hardly increase the floor area of the bag type dust collector under the objective condition, the increase of the height of the filter bag can only be considered. However, the pulse type bag dust collector needs to be stripped by injecting high-pressure gas, once the height of the filter bag is increased, the volume of the filter bag is increased, and after the volume of the filter bag is increased, the time for injecting the high-pressure gas is increased, so that the original effect of instantly expanding and deforming the filter bag is difficult to achieve, the efficiency of stripping dust is obviously reduced, and the situation is more serious especially at the bottom end of the filter bag.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pulsed dust collector that high efficiency was gathered dust, it can still guarantee the pulse in-process after the filter bag height increases, the effect that the dust was peeled off to improve pulsed dust collector's recovery efficiency.
The embodiment of the utility model is realized like this:
a pulse type dust collector for efficiently collecting dust comprises a shell and a working cavity positioned in the shell, wherein the working cavity comprises a clean gas area and a filtering area; the clean gas area is positioned above the filtering area and is separated from the filtering area by a porous plate; the porous plate is provided with a plurality of vent holes which communicate the clean gas area with the filtering area;
each vent hole is provided with a filter bag for filtering, each filter bag is connected with the porous plate, downwardly hangs into the filtering area and extends to the bottom of the filtering area from the top of the filtering area; the middle part of each filter bag is provided with a clapboard which divides the filter bag into an upper filter bag and a lower filter bag which are relatively independent, the clapboard is provided with a plurality of air holes for air to pass through, and the upper filter bag is communicated with the lower filter bag through the air holes;
a first blowback gas pipe and a second blowback gas pipe are arranged in the clean gas area, and are communicated with the high-pressure gas cylinder through a blowback gas main pipe; the first back blowing branch pipe is provided with a plurality of first back blowing branch pipes, the plurality of first back blowing branch pipes correspond to the filter bag one by one, and each first back blowing branch pipe penetrates through the vent hole and extends into the upper filter bag; the second back blowing branch pipe is provided with a plurality of second back blowing branch pipes, the second back blowing branch pipes correspond to the filter bags one by one, and each second back blowing branch pipe penetrates through the partition plate and extends into the lower filter bag.
Further, in other preferred embodiments of the present invention, the first and second blowback pipes are provided with electromagnetic valves, the electromagnetic valves are electrically connected to the pulse controller, and the pulse controller controls the opening and closing of the electromagnetic valves.
Further, in other preferred embodiments of the present invention, the bottom of the filtering area is provided with a material collecting area, the whole shape of the material collecting area is an inverted cone, and the bottom of the material collecting area is provided with a material outlet.
Further, in other preferred embodiments of the present invention, a discharge valve is disposed at the discharge opening.
Further, in other preferred embodiments of the present invention, a dust-containing gas inlet is disposed on the housing corresponding to the material collecting area, and the dust-containing gas inlet penetrates through the housing to communicate the material collecting area with the dust-containing gas source.
Further, in other preferred embodiments of the present invention, the clean air area is provided with a clean air outlet, and the clean air outlet penetrates through the housing to communicate the clean air area with the outside.
The embodiment of the utility model provides a beneficial effect is:
the embodiment of the utility model provides a pulse type dust collector for high-efficiency dust collection, which comprises a shell and a working chamber positioned in the shell, wherein the working chamber comprises a clean gas area and a filtering area; a plurality of filter bags are arranged in the filter area, a partition plate is arranged in the middle of each filter bag and divides the filter bags into an upper filter bag and a lower filter bag which are relatively independent, a plurality of air holes for air to pass through are formed in the partition plates, and the upper filter bag is communicated with the lower filter bag through the air holes. A first back-blowing branch pipe is arranged in the upper filter bag; and a second back-blowing branch pipe is arranged in the lower filter bag. The pore diameter of the air holes on the clapboard is small, under the condition of normal filtration, the air flow velocity is slow, so that the air flow cannot be blocked, but when high-pressure pulse air flow is introduced, the air cannot pass through the air holes, and therefore instantaneous expansion can be formed in the upper filter bag and the lower filter bag. Meanwhile, due to the separation of the partition plate, the volumes of the upper filter bag and the lower filter bag are relatively small, and after high-pressure pulse airflow is introduced, the effect of instant expansion can be better achieved, and the dust stripping and recycling efficiency is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a cross-sectional view of an impulse type dust collector for collecting dust with high efficiency provided by the embodiment of the present invention.
Icon: 100-a pulse type dust collector; 110-a housing; 111-dusty gas inlet; 112-clean gas outlet; 120-a working chamber; 121-a clean gas zone; 122-a filtration zone; 123-a perforated plate; 124-filter bag; 1241-arranging a filter bag; 1242-lower a filter bag; 125-a separator; 126-a material collection area; 127-a discharge valve; 131-a first blowback gas pipe; 1311-first blowback branch pipe; 132-a second blowback gas pipe; 1321-a second blowback branch pipe; 133-a blowback gas main pipe; 134-high pressure air reservoir.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
The present embodiment provides a pulse type dust collector 100 for collecting dust with high efficiency, which is shown in fig. 1, and includes a housing 110 and a working chamber 120 located inside the housing 110.
As shown in fig. 1, a high-efficiency dust-collecting pulse type dust collector 100 includes a housing 110 and a working chamber 120 located inside the housing 110, the working chamber 120 including a clean gas zone 121 and a filtering zone 122; the clean gas area 121 is positioned above the filtering area 122 and is separated from the filtering area 122 by a porous plate 123; the porous plate 123 is provided with a plurality of vent holes (not shown) which communicate the clean air zone 121 and the filtering zone 122. Each vent is provided with a filter pocket 124 for filtration, each pocket 124 being connected to a perforated plate 123 and hanging downwardly into the filtration zone 122, extending from the top of the filtration zone 122 to the bottom of the filtration zone 122. The dust-containing gas in the filtering area 122 is located outside the filter bag 124, and during the process of the dust-containing gas passing through the filter bag 124, the dust carried by the dust-containing gas is trapped by the filter bag 124, and the clean air enters the inside of the filter bag 124 and then enters the clean air area 121 through the vent holes. The ventilation holes are uniformly distributed on the perforated plate 123, so that the filter bags 124 are spaced at a moderate distance and at a substantially equal interval, thereby providing a better filtering effect for the dust-containing air.
For the cement industry, the dust collector used by the cement industry is generally large in volume and can reach a height of more than ten meters. If it is desired to increase the height of the filter bag 124 to increase the effective area of filtration, it is necessary to face a problem that the volume of the filter bag 124 is increased to reduce the back flushing effect. In this embodiment, a partition plate 125 is disposed at the middle of each filter bag 124, the filter bag 124 is divided into an upper filter bag 1241 and a lower filter bag 1242 by the partition plate 125, and a plurality of air holes (not shown) for air to pass through are disposed on the partition plate 125 and communicate the upper filter bag 1241 with the lower filter bag 1242. The pore size of the air holes is relatively small, and the purified air flow can pass through the air holes without any obstruction in the filtering process because the flow rate of the air flow is relatively slow. When the high-pressure pulse airflow is introduced into the upper filter bag 1241 or the lower filter bag 1242 for backflushing, the gas cannot completely pass through the air holes due to the high gas flow rate, so that the effect of instantaneous expansion in the upper filter bag 1241 or the lower filter bag 1242 can be achieved. Meanwhile, due to the separation of the partition plate 125, the volumes of the upper filter bag 1241 and the lower filter bag 1242 are relatively small, and after high-pressure pulse airflow is introduced, the effect of instantaneous expansion can be better achieved. Therefore, the problem that the expansion effect is poor due to the increase of the volume of the filter bag 124 after the height of the filter bag 124 is increased is solved, and the dust stripping and recycling efficiency is guaranteed.
A first blowback gas pipe 131 and a second blowback gas pipe 132 are provided in the clean gas area 121, and both the first blowback gas pipe 131 and the second blowback gas pipe 132 are communicated with a high pressure air receiver 134 through a blowback gas manifold 133. The first blowback pipe 131 is provided with a plurality of first blowback branch pipes 1311, the plurality of first blowback branch pipes 1311 correspond to the filter bags 124 one by one, and each first blowback branch pipe 1311 penetrates through the vent hole and extends into the upper filter bag 1241; the second blowback pipe 132 has a plurality of second blowback branch pipes 1321, the plurality of second blowback branch pipes 1321 correspond to the filter bags 124 one by one, and each second blowback branch pipe 1321 penetrates through the partition plate 125 and extends into the lower filter bag 1242. The first blowback branch pipe 1311 and the second blowback branch pipe 1321 may be used to introduce high-pressure pulse air into the upper filter bag 1241 and the lower filter bag 1242, respectively.
Further, the first blowback gas pipe 131 and the second blowback gas pipe 132 are each provided with a solenoid valve (not shown), and the solenoid valves are electrically connected to a pulse controller (not shown), and the opening and closing of the solenoid valves are controlled by the pulse controller. Since the air pressure output from the high pressure air cylinder 133 is limited, if the high pressure air flows are simultaneously charged into the upper filter bag 1241 and the lower filter bag 1242, the air pressure is relatively dispersed, and the backflushing effect is not significantly improved compared to the case where the partition plate 125 is not provided. However, after the electromagnetic valves are respectively arranged on the first blowback pipe 131 and the second blowback pipe 132, the first blowback pipe 131 and the second blowback pipe 132 can be alternately blown, the air pressure is relatively concentrated, and the expansion effect of the upper filter bag 1241 or the lower filter bag 1242 can be obviously enhanced.
Further, a material collecting area 126 is arranged at the bottom of the filtering area 122, the overall shape of the material collecting area 126 is an inverted cone, and a material discharging opening (not shown) is arranged at the bottom of the material collecting area 126. The collecting area 126 is mainly used for collecting and recycling the dust trapped in the filtering area 122. The shape of the inverted cone is beneficial to collecting the dust to the discharge opening at the bottom and discharging the dust from the discharge opening. The discharge opening is provided with a discharge valve 127 for controlling the opening and closing of the discharge opening to start the discharge operation according to the dust collection condition.
Preferably, a dust-containing gas inlet 111 is provided on the housing 110 corresponding to the material collection area 126, and the dust-containing gas inlet 111 penetrates through the housing 110 to communicate the material collection area 126 with a dust-containing gas source. Specifically, the dust-laden air inlet 111 is located at the top of the material collection area 126 near the filtering area 122, and since the filter bag 124 extends from the top to the bottom of the filtering area 122, the second dust-laden air inlet 111 is located at the material collection area 126 to avoid the direct impact of the dust-laden air flow on the filter bag 124, so as to protect the filter bag 124 better and prolong the service life of the filter bag 124. Further, the clean gas area 121 is provided with a clean gas outlet 112, and the clean gas outlet 112 penetrates the housing 110 to communicate the clean gas area 121 with the outside for discharging the purified gas into the atmosphere.
To sum up, the embodiment of the present invention provides a pulse type dust collector 100 for collecting dust with high efficiency, which includes a housing 110 and a working chamber 120 located inside the housing 110, wherein the working chamber 120 includes a clean gas area 121 and a filtering area 122; the filtering area 122 is internally provided with a plurality of filter bags 124, the middle part of each filter bag 124 is provided with a partition plate 125, the filter bag 124 is divided into an upper filter bag 1241 and a lower filter bag 1242 which are relatively independent by the partition plate 125, the partition plate 125 is provided with a plurality of air holes for air to pass through, and the upper filter bag 1241 is communicated with the lower filter bag 1242 through the air holes. A first back-blowing branch pipe 1311 is arranged in the upper filter bag 1241; a second blowback branch 1321 is provided in the lower filter bag 1242. The apertures of the ventilation holes in the partition 125 are small, and thus, under normal filtering conditions, the air flow velocity is slow, and thus, the air flow is not obstructed, but when high-pressure pulse air flow is introduced, the air does not have time to pass through the ventilation holes, so that instantaneous expansion can be formed in the upper filter bag 1241 and the lower filter bag 1242. Meanwhile, due to the separation of the partition plate 125, the volumes of the upper filter bag 1241 and the lower filter bag 1242 are relatively small, so that after high-pressure pulse airflow is introduced, the effect of instant expansion can be better achieved, and the efficiency of dust stripping and recovery is guaranteed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The pulse type dust collector for efficiently collecting dust is characterized by comprising a shell and a working cavity positioned in the shell, wherein the working cavity comprises a clean gas area and a filtering area; the clean gas area is positioned above the filtering area and is separated from the filtering area by a porous plate; the porous plate is provided with a plurality of vent holes which are used for communicating the clean gas area with the filtering area;
each vent hole is provided with a filter bag for filtering, each filter bag is connected with the porous plate and hangs downwards into the filtering area, and the filter bag extends from the top of the filtering area to the bottom of the filtering area; the middle part of each filter bag is provided with a partition board which divides the filter bag into an upper filter bag and a lower filter bag which are relatively independent, a plurality of air holes for air to pass through are formed in the partition board, and the upper filter bag is communicated with the lower filter bag through the air holes;
a first blowback gas pipe and a second blowback gas pipe are arranged in the clean gas area, and are communicated with the high-pressure gas cylinder through a blowback gas main pipe; the first back blowing branch pipe is provided with a plurality of first back blowing branch pipes, the first back blowing branch pipes correspond to the filter bags one by one, and each first back blowing branch pipe penetrates through the vent hole and extends into the upper filter bag; the second back blowing branch pipe is provided with a plurality of second back blowing branch pipes, the second back blowing branch pipes correspond to the filter bags one by one, and each second back blowing branch pipe penetrates through the partition plate and extends into the lower filter bag.
2. The pulse type dust collector for high-efficiency dust collection according to claim 1, wherein the first blowback pipe and the second blowback pipe are each provided with an electromagnetic valve, the electromagnetic valves are electrically connected with a pulse controller, and the pulse controller controls the opening and closing of the electromagnetic valves.
3. The pulse type dust collector for high-efficiency dust collection according to claim 1, wherein a material collection area is arranged at the bottom of the filtering area, the overall shape of the material collection area is an inverted cone, and a discharge outlet is arranged at the bottom of the material collection area.
4. The pulse type dust collector for high-efficiency dust collection according to claim 3, wherein a discharge valve is provided at the discharge port.
5. The pulse dust collector for high-efficiency dust collection according to claim 4, wherein a dust-containing gas inlet is provided on the housing corresponding to the material collection area, and the dust-containing gas inlet penetrates through the housing to communicate the material collection area with a dust-containing gas source.
6. The pulse type dust collector for high-efficiency dust collection according to claim 1, wherein the clean gas zone is provided with a clean gas outlet which penetrates through the housing to communicate the clean gas zone with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824471.9U CN210934174U (en) | 2019-10-28 | 2019-10-28 | Pulse type dust collector capable of efficiently collecting dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824471.9U CN210934174U (en) | 2019-10-28 | 2019-10-28 | Pulse type dust collector capable of efficiently collecting dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210934174U true CN210934174U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921824471.9U Active CN210934174U (en) | 2019-10-28 | 2019-10-28 | Pulse type dust collector capable of efficiently collecting dust |
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| Country | Link |
|---|---|
| CN (1) | CN210934174U (en) |
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- 2019-10-28 CN CN201921824471.9U patent/CN210934174U/en active Active
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