Coal-fired boiler dust remover

Abstract

The utility model discloses a coal-fired boiler dust remover which comprises a base frame and a blocking plate, a first cavity and a second cavity are formed in the base frame, an air inlet, a main air outlet and a secondary air outlet are further formed in the base frame, the air inlet and the secondary air outlet are communicated with the first cavity, the main air outlet is communicated with the second cavity, and the blocking plate is arranged between the main air outlet and the second cavity. A first filter bag for separating the first chamber from the second chamber is arranged in the base frame, a second filter bag is arranged on the secondary air outlet, and the blocking plate is driven to slide so as to block the primary air outlet or the secondary air outlet. According to the dust remover for the coal-fired boiler provided by the utility model, the first filter bag is cleaned by utilizing the base frame and the blocking plate under the condition that the coal-fired boiler does not stop, so that resource waste caused by shutdown of the coal-fired boiler due to cleaning of the dust removal assembly is avoided, and the economical efficiency and the applicability of the dust removal assembly are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of coal-fired boiler dust collector technical field, specifically a kind of coal-fired boiler dust collector. BACKGROUND

[0002] The coal-fired boiler warehouse top cloth bag dust collector is used in the coal-fired boiler warehouse top, which avoids the phenomenon of serious pollution of the environment caused by the direct discharge of smoke and dust into the air.

[0003] According to the announcement number CN209646055U, the announcement date: November 19, 2019, the disclosed cloth bag dust collector technical field is a kind of coal-fired boiler warehouse top cloth bag dust collector, including coal-fired boiler, coal-fired boiler exhaust pipe and dust cloth bag, the upper end of the coal-fired boiler is connected with the coal-fired boiler exhaust pipe, the end of the coal-fired boiler exhaust pipe is sleeved with the dust cloth bag, the dust cloth bag is sleeved in the periphery of the outer filter cylinder in the utility model, and the flue gas discharged in the coal-fired boiler exhaust pipe is filtered by the inner filter cylinder and the outer filter cylinder. After double filtration, it is dusted through the dust cloth bag, which increases the dust removal effect, avoids the influence of high-temperature flue gas on the dust cloth bag directly, improves the service life of the device, and is convenient for cleaning and suitable for promotion.

[0004] In the prior art including the above-mentioned patent, the dust cloth bag, the outer filter cylinder and the inner filter cylinder are fixed on the exhaust pipe by the magnetic attraction ring for dust removal operation. When too much smoke and dust accumulate in the dust cloth bag and the inner filter cylinder, the dust removal effect of the dust removal assembly decreases, and the exhaust speed slows down. Therefore, it is necessary to stop the coal-fired boiler and replace the dust removal assembly. However, the efficiency of stopping and restarting the coal-fired boiler is low and resources are wasted. Therefore, the method of stopping and replacing the dust removal assembly has poor economy and applicability. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of coal-fired boiler dust collector, to solve the above-mentioned problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of coal-fired boiler dust collector, including base frame and plugging plate, the first chamber and the second chamber are opened in the base frame, the base frame is also provided with air inlet, main air outlet and secondary air outlet, the air inlet and the secondary air outlet are communicated with the first chamber, the main air outlet is with the second chamber, the first filter bag that separates the first chamber and the second chamber is provided in the base frame, the secondary air outlet is provided with the second filter bag, and the plugging plate is driven to slide to block the main air outlet or the secondary air outlet.

[0007] As preferred, the linear array on the base frame is arranged with heat-conducting plates.

[0008] As preferred, the heat-conducting plates are provided with protruding ends obliquely protruding into the first chamber, and the protruding ends protrude into the first chamber by distances that increase in sequence from the air inlet to the secondary air outlet.

[0009] As preferred, the base frame is provided with sliding grooves that communicate with the primary air outlet and the secondary air outlet, and the blocking plate is arranged to slide in the sliding grooves, and the blocking plate is arranged to slide to the two ends of the sliding grooves to block the primary air outlet and the secondary air outlet respectively.

[0010] As preferred, the two ends of the sliding grooves are provided with abutting grooves, and the two ends of the blocking plate are symmetrically provided with abutting tips, and the blocking plate is driven to slide so that the abutting tips move along the inner wall of the sliding grooves and are embedded in the abutting grooves.

[0011] As preferred, the secondary air outlet is provided with a mounting ring portion, the second filter bag is provided with a fixing portion, the locking ring is pressed to fix the fixing portion on the mounting ring portion, and the locking bolt is screwed on the locking ring through the mounting ring portion.

[0012] As preferred, the blocking plate is provided with an extending portion that extends outside the base frame.

[0013] As preferred, the blocking plate is made of Teflon.

[0014] As preferred, the locking ring is made of Teflon.

[0015] As preferred, the locking bolt is made of Teflon.

[0016] In the above technical solution, the coal-fired boiler dust collector provided by the present application has the following beneficial effects: the base frame and the blocking plate are used to clean the first filter bag without stopping the coal-fired boiler, so that resource waste caused by stopping the coal-fired boiler for cleaning the dust removal assembly is avoided, and the economy and applicability of the dust removal assembly are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 The overall structure of the cross-sectional view of the present application is provided.

[0019] Figure 2The structure schematic view of the base frame and the heat conduction plate provided by the embodiment of the utility model;

[0020] Figure 3 The structure schematic view of the base frame and the heat conduction plate provided by the embodiment of the utility model; Figure 1 The local enlarged schematic view of A in the middle;

[0021] Figure 4 The structure schematic view of the base frame and the heat conduction plate provided by the embodiment of the utility model; Figure 1 The local enlarged schematic view of B in the middle.

[0022] Mark explanation:

[0023] 1, base frame;11, first chamber;111, air inlet;112, secondary air outlet;1121, mounting ring part;12, second chamber;121, main air outlet;13, sliding groove;131, abutting groove;2, first filter bag;3, second filter bag;31, fixed part;4, blocking plate;41, protruding part;42, scraping tip;5, heat conduction plate;51, insertion end;6, locking ring;7, locking bolt. Specific implementation

[0024] In order to make the purpose, technical scheme and advantage of the embodiment of the disclosure clearer, the technical scheme of the embodiment of the disclosure will be clearly and completely described below in combination with the drawings of the embodiment of the disclosure. Obviously, the described embodiment is a part of the embodiment of the disclosure, rather than all the embodiments. Based on the described embodiment of the disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the protection scope of the disclosure.

[0025] As Figures 1-4 Indicated, a coal-fired boiler dust collector, including base frame 1 and blocking plate 4, base frame 1 is set with first chamber 11 and second chamber 12, and base frame 1 is further provided with air inlet 111, main air outlet 121 and secondary air outlet 112, air inlet 111 and secondary air outlet 112 are communicated with first chamber 11, main air outlet 121 is with second chamber 12, and first filter bag 2 for separating first chamber 11 and second chamber 12 is arranged in base frame 1, second filter bag 3 is arranged on secondary air outlet 112, and blocking plate 4 is driven to slide to block main air outlet 121 or secondary air outlet 112 respectively.

[0026] Specifically, as Figure 1As shown, the flue gas from the coal-fired boiler enters the first chamber 11 through the air inlet 111. During normal dust removal operations, the sealing plate 4 slides to seal the secondary air outlet 112, while the main air outlet 121 remains unblocked. At this time, after the flue gas from the coal-fired boiler enters the first chamber 11 through the air inlet 111, it passes through the first filter bag 2 and enters the second chamber 12. Subsequently, the flue gas is discharged from the main air outlet 121, while the dust in the flue gas is filtered and collected in the first filter bag 2. If the dust collected in the first filter bag 2 is too much and affects the exhaust efficiency, the sealing plate 4 can be slid to block the main air outlet 121. At this time, the secondary air outlet 112 is not blocked. The flue gas entering through the inlet 111 passes through the second filter bag 3 from the secondary air outlet 112 along the first chamber 11 to perform dust removal. During this process, due to the velocity difference between the first chamber 11 and the second chamber 12, the dust collected in the first filter bag 2 will follow the flue gas flow and enter the first chamber 11, and enter the second filter bag 3 along the secondary air outlet 112 to be collected. When all the dust in the first filter bag 2 has been collected in the second filter bag 3 from the secondary air outlet 112, the sealing plate 4 can be slid again to block the secondary air outlet 112, and the main air outlet 121 will be opened. At this time, the second filter bag 3 has completed the dust removal and can continue to perform dust removal. The second filter bag 3 can be removed from the secondary air outlet 112 for cleaning. This allows for the cleaning of the first filter bag 2 without shutting down the coal-fired boiler, utilizing the base frame 1 and the sealing plate 4. This avoids the waste of resources caused by shutting down the coal-fired boiler when cleaning the dust removal components, and improves the economy and applicability of the dust removal components.

[0027] In the above technical solution, the base frame 1 and the sealing plate 4 are used to clean the first filter bag 2 without shutting down the coal-fired boiler, avoiding the waste of resources caused by shutting down the coal-fired boiler when cleaning the dust removal components, and improving the economy and applicability of the dust removal components.

[0028] As a further embodiment provided in this utility model, heat-conducting plates 5 are arranged in a linear array on the base frame 1.

[0029] Specifically, such as Figure 1 As shown, the heat-conducting plates 5 are arranged in a linear array on the base frame 1 to achieve direct contact heat dissipation of the base frame 1, improve the heat dissipation area and heat dissipation efficiency of the base frame 1, and avoid damage to the base frame 1 due to overheating.

[0030] As a further embodiment of this utility model, the heat-conducting plate 5 is provided with an extension end 51 that extends obliquely into the first chamber 11, and the distance of several extension ends 51 extending into the first chamber 11 increases sequentially along the direction from the air inlet 111 to the secondary air outlet 112.

[0031] Specifically, such as Figure 2As shown in the drawings, the extending end 51 of the heat-conducting plate 5 is obliquely extended into the first chamber 11, and the distance of the extending end 51 extending into the first chamber 11 is sequentially increased along the direction from the air inlet 111 to the secondary air outlet 112; when the blocking plate 4 slides to block the secondary air outlet 112 and opens the main air outlet 121, the flue gas enters from the air inlet 111 to sequentially contact the extending end 51 of the heat-conducting plate 5, so that the extending end 51 realizes the disturbance and deceleration of the flue gas in the first chamber 11, thereby making the large-particle smoke dust on the extending end 51 accelerated by gravity and falling into the first filter bag 2, and further making the bottom smoke dust particles collected in the first filter bag 2 larger, thereby improving the airflow passing property of the first filter bag 2 and improving the filtering efficiency.

[0032] When the blocking plate 4 slides to block the main air outlet 121 and opens the secondary air outlet 112, the first filter bag 2 is deformed upward to contact the extending end 51 due to the flow rate difference, thereby improving the speed of the flue gas passing through the inside of the first filter bag 2 to drive the smoke dust collected on the first filter bag 2, and improving the cleaning efficiency of the first filter bag 2.

[0033] As a further provided embodiment of the utility model, the base frame 1 is provided with a sliding groove 13 communicating with the main air outlet 121 and the secondary air outlet 112, and the blocking plate 4 is arranged to slide in the sliding groove 13, and the blocking plate 4 slides to the two ends of the sliding groove 13 to block the main air outlet 121 and the secondary air outlet 112, respectively.

[0034] Specifically, as shown in the drawings, the blocking plate 4 is arranged to slide in the sliding groove 13 to improve the sliding stability of the blocking plate 4 and ensure the stable blocking of the main air outlet 121 and the secondary air outlet 112. Figure 2

[0035] Specifically, as shown in the drawings, the two ends of the blocking plate 4 are symmetrically provided with scraping tips 42, and when the blocking plate 4 is driven to slide in the sliding groove 13, the scraping tips 42 slide to scrape and push the smoke dust adhered to the inner wall of the sliding groove 13 into the main air outlet 121 or the secondary air outlet 112, thereby completing the internal cleaning of the sliding groove 13 and improving the sliding stability of the blocking plate 4; in addition, when the blocking plate 4 slides to block the main air outlet 121 or the secondary air outlet 112, the scraping tips 42 are in contact with the abutting grooves 131 to improve the blocking stability of the main air outlet 121 or the secondary air outlet 112.

[0036] Figure 4

[0037] ​​​As the further provided embodiment of the utility model further includes locking ring 6 and locking bolt 7, the second air outlet 112 is provided with mounting ring part 1121, the second filter bag 3 is provided with fixed part 31, locking ring 6 extrudes fixed part 31 on mounting ring part 1121, locking bolt 7 is screwed on locking ring 6 by penetrating mounting ring part 1121.

[0038] Specifically, as shown in Figure 3 The fixed part 31 of the second filter bag 3 is close to the mounting ring part 1121, then the locking ring 6 is sleeved to the outside of the second air outlet 112, and the locking ring 6 is close to the mounting ring part 1121 to clamp the fixed part 31, finally the locking bolt 7 is screwed on the locking ring 6 by penetrating the mounting ring part 1121 to complete the fixing of the second filter bag 3 on the second air outlet 112, improve the fixing stability of the second filter bag 3, and facilitate actual use.

[0039] As the further provided embodiment of the utility model, the blocking plate 4 is provided with the extension part 41 extending outside the base frame 1.

[0040] Specifically, the blocking plate 4 is provided with the extension part 41 extending outside the base frame 1, the extension part 41 can be used to control the sliding of the blocking plate 4 on the base frame 1, and facilitate actual use.

[0041] As the further provided embodiment of the utility model, the blocking plate 4 is a Teflon product.

[0042] Specifically, the blocking plate 4 is a Teflon product to improve its wear resistance and service life.

[0043] As the further provided embodiment of the utility model, the locking ring 6 is a Teflon product.

[0044] Specifically, the locking ring 6 is a Teflon product to improve its wear resistance and service life.

[0045] As the further provided embodiment of the utility model, the locking bolt 7 is a Teflon product.

[0046] Specifically, the locking bolt 7 is a Teflon product to improve its wear resistance and service life.

[0047] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, under the condition that without deviating from the spirit and scope of the utility model, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection claimed by the utility model.

Claims

1. A coal-fired boiler precipitator characterized by, The utility model provides a kind of air purifier, including base frame (1) and blocking plate (4), first chamber (11) and second chamber (12) are opened in the base frame (1), air inlet (111), main air outlet (121) and secondary air outlet (112) are further provided on the base frame (1), the air inlet (111) and secondary air outlet (112) are communicated with first chamber (11), the main air outlet (121) is with second chamber (12), first filter bag (2) is arranged in the base frame (1) and separates first chamber (11) with second chamber (12), second filter bag (3) is provided on the secondary air outlet (112), the blocking plate (4) is driven to slide to block main air outlet (121) or secondary air outlet (112) respectively.

2. A coal-fired boiler precipitator according to claim 1, wherein Linear array is arranged with heat conduction plate (5) on the base frame (1).

3. A coal-fired boiler precipitator according to claim 2, wherein The heat conduction plate (5) is provided with the end (51) of inclining and extending into first chamber (11), and the distance of the plurality of end (51) extending into first chamber (11) is sequentially increased along the direction from air inlet (111) to secondary air outlet (112).

4. A coal-fired boiler precipitator according to claim 1, wherein The base frame (1) is provided with sliding groove (13) communicated with main air outlet (121) and secondary air outlet (112), the blocking plate (4) is arranged in sliding groove (13) and slides, and the blocking plate (4) is slid to the two ends of sliding groove (13) to block main air outlet (121) and secondary air outlet (112) respectively.

5. A coal-fired boiler precipitator according to claim 4, wherein The two ends of the sliding groove (13) are provided with the abutting groove (131), and the two ends of the blocking plate (4) are symmetrically provided with the scraping tip (42), and the blocking plate (4) is driven to slide to move the scraping tip (42) in the inner wall of the sliding groove (13) and be embedded in the abutting groove (131).

6. A coal-fired boiler precipitator according to claim 1 wherein, Further comprising locking ring (6) and locking bolt (7), the secondary air outlet (112) is provided with mounting ring part (1121), the second filter bag (3) is provided with fixed part (31), the locking ring (6) extrudes fixed part (31) on mounting ring part (1121), and the locking bolt (7) is screwed on the locking ring (6) by penetrating mounting ring part (1121).

7. A coal-fired boiler precipitator according to claim 1 wherein, The blocking plate (4) is provided with the extension part (41) extending outside the base frame (1).

8. A coal-fired boiler precipitator according to claim 1 wherein, The blocking plate (4) is a teflon product.

9. A coal-fired boiler precipitator according to claim 6 wherein, The locking ring (6) is a teflon product.

10. A coal-fired boiler precipitator according to claim 6, wherein The locking bolt (7) is a teflon product.

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