Negative pressure dust collection structure for power plant dry ash bulk system

Abstract

The utility model relates to a negative pressure dust collection structure for a power plant dry ash bulk system, which comprises a dust collection case and a telescopic blanking pipe, the outer surface of one side of the dust collection case is provided with a purification assembly for filtering air, and an air guide pipe is arranged between the purification assembly and the telescopic blanking pipe. The purification assembly comprises a purification box, a cover plate, a driving motor, a rotating blade plate and an alkaline neutralization layer, the cover plate is located on the outer surface of one side of the purification box, the driving motor is fixedly installed on the outer surface of the upper end of the purification box, the rotating blade plate is located in the middle of the purification box, and the alkaline neutralization layer is located in the middle of the rotating blade plate; the output end of the driving motor is connected with the outer surface of the top end of the rotating blade plate. When the purification assembly is used, the rotating blade plate can be driven by the driving motor to rotate forwards and backwards, so that the rotating blade plate performs acid-base neutralization treatment on passing gas through the alkaline neutralization layer, acidic substances in dry ash gas can be effectively reduced, corrosion of the acidic substances to a dust collection bag can be reduced, and the service life of the dust collection bag can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to power plant dry ash treatment technical field especially a kind of negative pressure dust extraction structure for power plant dry ash bulk system. BACKGROUND

[0002] ‌Power plant dry ash refers to fine particulate matter produced during the combustion of coal, mainly including fly ash, fly ash and slag etc. These particulate matters are collected and treated during the combustion process, usually used for various industrial and construction purposes‌;

[0003] In order to facilitate the recycling of dry ash, generally through bulk system to dry ash loading handling, during loading, the telescopic pipe conveying dry ash will be connected to the inlet of tank car, dry ash is conveyed through telescopic pipe, in order to reduce the dust generated during dry ash conveying, dust extraction structure is generally installed beside conveying equipment, but the existing dust extraction structure has certain inconvenience when using;

[0004] Firstly, the existing dust extraction structure generally adopts bag filter, dust is sucked into bag filter by negative pressure fan for filtering and dedusting, but the filter bag in the existing bag filter is easily corroded by acid in dust gas during use, and acid corrosion can easily affect the service life of filter bag;

[0005] Therefore, we propose a kind of negative pressure dust extraction structure for power plant dry ash bulk system. INVENTION CONTENTS

[0006] In view of the technical problems in the prior art that the existing dust extraction structure generally adopts bag filter, dust is sucked into bag filter by negative pressure fan for filtering and dedusting, but the filter bag in the existing bag filter is easily corroded by acid in dust gas during use, and acid corrosion can easily affect the service life of filter bag, the utility model provides a kind of negative pressure dust extraction structure for power plant dry ash bulk system.

[0007] The technical scheme adopted by the utility model is: a kind of negative pressure dust extraction structure for power plant dry ash bulk system, including dust extraction machine box and telescopic discharge pipe, the outer surface of one side of dust extraction machine box is provided with filter gas purification assembly, the purification assembly is provided with air duct between telescopic discharge pipe, the purification assembly includes purification tank, cover plate, drive motor, rotary vane and alkaline neutralization layer, the cover plate is located the outer surface of one side of the purification tank, the drive motor is fixedly installed on the outer surface of the upper end of the purification tank, the rotary vane is located the middle part of the purification tank, the alkaline neutralization layer is located the middle part of the rotary vane.

[0008] Further, the upper end outer surface of the dust suction machine box is provided with a top cover, the upper end outer surface of the top cover is provided with a negative pressure fan, the front end outer surface of the dust suction machine box is provided with a gas pump device, the lower end outer surface of the dust suction machine box is provided with a spiral feeding device, one end outer surface of the spiral feeding device is provided with a feeding motor, and the other end outer surface of the spiral feeding device is provided with a material guide pipe.

[0009] Further, the middle part of the dust suction machine box is provided with a carrier plate and a cleaning frame, the carrier plate is located above the cleaning frame, and the middle part of the carrier plate is provided with a dust suction bag.

[0010] Further, the middle part of the cleaning frame is provided with a sliding block, springs are arranged between the sliding block and the cleaning frame, the front end outer surface of the sliding block is provided with a connecting rod and a vibration motor, the connecting rod is located on both sides of the vibration motor, and one end outer surface of the connecting rod is fixedly connected with a knocking ball.

[0011] Further, the output end of the driving motor is connected with the top end outer surface of the rotating vane plate, and the rotating vane plate is a cross-shaped structure.

[0012] Further, the sliding block is movably connected with the cleaning frame through the springs, and the sliding block and the connecting rod are weldedly connected.

[0013] Further, one end of the gas pump device is provided with a gas blowing pipeline, and the gas blowing pipeline extends above the carrier plate.

[0014] The dust suction machine box has the advantages that:

[0015] In the utility model, the rotating vane plate is driven to perform forward and reverse rotation through the driving motor during use, the rotating vane plate performs acid-base neutralization treatment on the passing gas through the alkaline neutralization layer, the acidic substances in the dry ash gas can be effectively reduced, the corrosion of the acidic substances on the dust suction bag can be reduced, and the service life of the dust suction bag can be prolonged.

[0016] In the utility model, the sliding block is vibrated through the vibration motor during use of the cleaning frame, the sliding block shakes in the cleaning frame through the springs, the connecting rod at the front end of the sliding block can drive the knocking ball to knock the inside of the dust suction machine box during shaking, dust attached to the surface of the dust suction machine box can be quickly slid off, and dust attachment can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure diagram of the utility model;

[0018] Figure 2 It is the structure diagram of the purification assembly of the utility model;

[0019] Figure 3It is the internal structure diagram of the dust absorption machine box of the utility model.

[0020] Figure 4 It is the structure diagram of the cleaning frame of the utility model.

[0021] Marked as: 1, dust absorption machine box;2, telescopic blanking pipe;3, purification assembly;31, purification box;32, cover plate;33, driving motor;34, rotating leaf plate;35, alkaline neutralization layer;4, air duct;5, top cover;6, negative pressure fan;7, air pump device;8, spiral feeding device;9, feeding motor;10, material guiding pipe;11, carrier plate;12, dust absorption bag;13, cleaning frame;14, sliding block;15, spring;16, connecting rod;17, vibration motor;18, knocking ball. DETAILED DESCRIPTION

[0022] In the description of the utility model, it needs to explain, the orientation or position relation that the term "front", "upper", "lower", "left", "right", "vertical", "horizontal" and the like indicate is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element referred to must have a particular orientation, with a particular orientation structure and operation, therefore, it cannot be understood as the limitation of the utility model.

[0023] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "connection", "connect" should be broad understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;It can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.For the ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0024] The following will be combined with the drawings Figures 1-4 Further illustrate the utility model.

[0025] In order to solve the problems in the background art, the present application proposes the following technical scheme: a negative pressure dust absorption structure for power plant dry ash bulk system.

[0026] In the specific technical scheme, the dust collector box 1 is provided with a filter and purification assembly 3 on one side of the outer surface, a wind guide pipe 4 is arranged between the filter and purification assembly 3 and the telescopic discharging pipe 2, the filter and purification assembly 3 comprises a purification box 31, a cover plate 32, a driving motor 33, a rotating blade 34 and an alkaline neutralization layer 35, the cover plate 32 is arranged on one side of the outer surface of the purification box 31, the driving motor 33 is fixedly installed on the upper end of the outer surface of the purification box 31, the rotating blade 34 is arranged in the middle of the purification box 31, and the alkaline neutralization layer 35 is arranged in the middle of the rotating blade 34. When the filter and purification assembly 3 is used, the rotating blade 34 can be driven to rotate in forward and reverse directions by the driving motor 33, so that the rotating blade 34 can perform acid-base neutralization treatment on the passing gas through the alkaline neutralization layer 35, the acidic substances in the dry ash gas can be effectively reduced, the corrosion of the acidic substances on the dust collection bag 12 can be reduced, and the service life of the dust collection bag 12 can be prolonged.

[0027] Further, the output end of the driving motor 33 is connected with the top end of the outer surface of the rotating blade 34, the rotating blade 34 has a cross-shaped structure, and the cross-shaped structure of the rotating blade 34 can enable the alkaline neutralization layer 35 to always perform acid-base neutralization treatment on the dry ash gas when rotating, and does not affect the passing of the dry ash gas.

[0028] Referring to FIGS. 1 to 8, Figure 1 , Figure 3 and Figure 4 , the upper end of the outer surface of the dust collector box 1 is provided with a top cover 5, the upper end of the outer surface of the top cover 5 is provided with a negative pressure fan 6, the front end of the outer surface of the dust collector box 1 is provided with a gas pump device 7, the lower end of the outer surface of the dust collector box 1 is provided with a spiral feeding device 8, one end of the outer surface of the spiral feeding device 8 is provided with a feeding motor 9, the other end of the outer surface of the spiral feeding device 8 is provided with a material guide pipe 10, the middle of the dust collector box 1 is provided with a carrier plate 11 and a cleaning frame 13, the carrier plate 11 is located above the cleaning frame 13, the middle of the carrier plate 11 is provided with a dust collection bag 12, the middle of the cleaning frame 13 is provided with a sliding block 14, the sliding block 14 and the cleaning frame 13 are provided with a spring 15, the front end of the outer surface of the sliding block 14 is provided with a connecting rod 16 and a vibration motor 17, the connecting rod 16 is located on both sides of the vibration motor 17, one end of the outer surface of the connecting rod 16 is fixedly connected with a knocking ball 18, the negative pressure fan 6 generates negative pressure air suction when used, so that the dust generated when the telescopic discharging pipe 2 discharges enters the dust collector box 1 through the wind guide pipe 4 and the filter and purification assembly 3 for dust collection treatment, the cleaning frame 13 can vibrate the sliding block 14 by the vibration motor 17 when used, so that the sliding block 14 shakes in the cleaning frame 13 through the spring 15, and the connecting rod 16 at the front end of the sliding block 14 can drive the knocking ball 18 to knock the inside of the dust collector box 1 when shaking, so that the dust attached to the surface of the dust collector box 1 can quickly slide off to avoid dust adhesion.

[0029] Further, the slider 14 is movably connected with the cleaning frame 13 through the spring 15, the slider 14 is welded with the connecting rod 16, one end of the air pump device 7 is provided with a blowing pipeline, the blowing pipeline extends to the upper side of the loading plate 11, the air pump device 7 can generate high-pressure gas in use, then the high-pressure gas is sprayed to the dust collection bag 12 through the blowing pipeline, and the dust adhered to the surface of the dust collection bag 12 can be shaken off.

[0030] In order for those skilled in the art to fully understand the technical solutions, the present application is made as follows:

[0031] In use, the dry ash material is discharged into the tank car through the telescopic discharge pipe 2, then the negative pressure fan 6 is started to generate negative pressure air suction, the ash dust generated in the discharging process enters the purification box 31 through the air guide pipe 4, at this time, the driving motor 33 above the purification box 31 drives the rotary leaf plate 34 to perform forward and reverse rotation, so that the rotary leaf plate 34 performs acid-base neutralization treatment on the passing gas through the alkaline neutralization layer 35, which can effectively reduce the acidic substances in the dry ash gas, reduce the corrosion of the acidic substances on the dust collection bag 12, and improve the service life of the dust collection bag 12, the treated ash gas enters the dust collection box 1, and then is treated by the dust collection bag 12, the purified air is discharged through the negative pressure fan 6, and the air pump device 7 can be started after long-term use, the air pump device 7 can generate high-pressure gas in use, then the high-pressure gas is sprayed to the dust collection bag 12 through the blowing pipeline, the dust adhered to the surface of the dust collection bag 12 can be shaken off, the shaken-off dust enters the spiral feeding device 8 for conveying, and then is conveyed into the tank car through the material guide pipe 10, the vibration motor 17 can be started when cleaning the dust, the vibration motor 17 vibrates the slider 14, so that the slider 14 shakes in the cleaning frame 13 through the spring 15, and the connecting rod 16 at the front end of the slider 14 can drive the knocking ball 18 to knock the inside of the dust collection box 1, so that the dust adhered to the surface of the dust collection box 1 can quickly slide off, avoiding dust adhesion.

[0032] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here, and the contents not described in detail in the description belong to the prior art known to the person skilled in the art.

[0033] Although the embodiments of the utility model have been shown and described, the scope of the utility model is defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A negative pressure dust collection structure for a power plant dry ash bulk handling system, characterized in that, The device includes a vacuum cleaner housing (1) and a telescopic discharge pipe (2). A filtration and purification assembly (3) is provided on one outer surface of the vacuum cleaner housing (1). An air guide pipe (4) is provided between the purification assembly (3) and the telescopic discharge pipe (2). The purification assembly (3) includes a purification box (31), a cover plate (32), a drive motor (33), a rotating blade (34), and an alkaline neutralization layer (35). The cover plate (32) is located on one outer surface of the purification box (31). The drive motor (33) is fixedly installed on the upper outer surface of the purification box (31). The rotating blade (34) is located in the middle of the purification box (31). The alkaline neutralization layer (35) is located in the middle of the rotating blade (34).

2. The negative pressure dust collection structure for a power plant dry ash bulk handling system according to claim 1, characterized in that, The upper outer surface of the vacuum cleaner housing (1) is provided with a top cover (5), the upper outer surface of the top cover (5) is provided with a negative pressure fan (6), the front outer surface of the vacuum cleaner housing (1) is provided with an air pump device (7), the lower outer surface of the vacuum cleaner housing (1) is provided with a spiral feeding device (8), one end of the spiral feeding device (8) is provided with a feeding motor (9), and the other end of the spiral feeding device (8) is provided with a guide pipe (10).

3. The negative pressure dust collection structure for a power plant dry ash bulk handling system according to claim 2, characterized in that, The vacuum cleaner housing (1) has a carrier plate (11) and a cleaning frame (13) in the middle. The carrier plate (11) is located above the cleaning frame (13), and a vacuum bag (12) is provided in the middle of the carrier plate (11).

4. The negative pressure dust collection structure for a power plant dry ash bulk handling system according to claim 3, characterized in that, A slider (14) is provided in the middle of the cleaning frame (13), and a spring (15) is provided between the slider (14) and the cleaning frame (13). A connecting rod (16) and a vibration motor (17) are provided on the outer surface of the front end of the slider (14). The connecting rod (16) is located on both sides of the vibration motor (17), and a striking ball (18) is fixedly connected to the outer surface of one end of the connecting rod (16).

5. The negative pressure dust collection structure for a power plant dry ash bulk handling system according to claim 1, characterized in that, The output end of the drive motor (33) is connected to the top outer surface of the rotating blade (34), which has a cross-shaped structure.

6. The negative pressure dust collection structure for a power plant dry ash bulk handling system according to claim 4, characterized in that, The slider (14) is movably connected to the cleaning frame (13) via the spring (15), and the slider (14) is welded to the connecting rod (16).

7. The negative pressure dust collection structure for a power plant dry ash bulk handling system according to claim 3, characterized in that, One end of the air pump device (7) is provided with an air blowing pipe, which extends to the top of the carrier plate (11).

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