CN213885375U

CN213885375U - Pulse bag dust collector with vibration and blowing self-adjustment functions

Info

Publication number: CN213885375U
Application number: CN202022709399.4U
Authority: CN
Inventors: 朱可宸; 高云; 李状
Original assignee: Changzhou Fuchuang Renewable Resources Co ltd
Current assignee: Changzhou Fuchuang Renewable Resources Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-08-06
Anticipated expiration: 2030-11-20

Abstract

The utility model relates to the technical field of bag-type dust collectors, in particular to a pulse bag-type dust collector with vibration and blowing self-adjustment functions, which comprises a dust collection box body, wherein an upper box body is fixed above the dust collection box body, and a purified gas outlet is formed in the upper box body; an ash bucket is fixed below the dust removal box body, a dust gas inlet is formed in the side wall of the ash bucket, a dust outlet is formed below the ash bucket, an ash discharge device is arranged above the dust outlet, and a rapping device is fixed on the side wall of the ash bucket; the dust concentration transmitter is arranged on the dust gas inlet, the weight type charge level indicator is arranged on the lower portion of the dust removal box body, the dust concentration transmitter and the weight type charge level indicator are connected with the input end of the control system, and the output end of the control system is connected with the rapping device. After the structure of the oil-gas separator is adopted, the utility model discloses can improve the dust collection efficiency of pulse bag dust remover by a large margin, improve the dust removal effect, reduce customer equipment and maintain and operate the operation burden.

Description

Pulse bag dust collector with vibration and blowing self-adjustment functions

Technical Field

The utility model relates to a sack cleaner technical field, especially a pulse sack cleaner of area rapping and jetting self-interacting.

Background

The pulse bag dust collector is one of the most common and effective dust collecting equipment at present, and the principle is as follows: the dust remover is generally composed of an ash bucket, an upper box body, a middle box body, a lower box body and the like, wherein the upper box body, the middle box body and the lower box body are of a chamber-divided structure. When the dust-free dust remover works, dust-containing gas enters the dust hopper from the air inlet duct, coarse dust particles directly fall into the bottom of the dust hopper, fine dust particles turn upwards along with air flow and enter the middle box body and the lower box body, dust is accumulated on the outer surface of the filter bag, and the filtered gas enters the upper box body to the clean gas exhaust duct and is exhausted to the atmosphere through the exhaust fan. The ash cleaning process is to cut off the air duct at the clean air outlet of the chamber to make the cloth bag in the chamber in a state of no air flow passing through. Then opening the pulse electric valve to perform pulse blowing ash removal by using compressed air.

The main control means of the currently common pulse bag dust collector is to adopt a pulse controller to control, and the output signal of the pulse controller controls a pulse electromagnetic valve to periodically clean a filter bag. Because the control mode is to carry out the deashing according to established procedure, often can lead to the pulse bag dust collector dust collection efficiency lower, and the dust removal effect is not good, and customer equipment maintains and operates the burden heavier. In addition, in the dust removal process, some smoke contains more moisture, or the carried dust has stronger hygroscopicity, so that the filter bag is often bonded to block the filter material, and the wet dust is also often bonded to the wall of the dust hopper, thereby influencing the use efficiency of the pulse bag-type dust remover.

The dust cleaning system of the pulse bag-type dust collector is mainly supported and controlled by three factors, namely blowing pressure, blowing period and blowing time. The injection pressure refers to the compressed air pressure of pulse injection of the bag-type dust collector, and the filtering effect is influenced by too low or too high injection pressure; the length of the blowing period directly influences the pressure drop of the dust remover, and the pressure drop of the bag-type dust remover can be basically kept to operate in a stable state by adjusting the pulse interval; the blowing time (also called pulse width), namely the time of opening and blowing the pulse valve, is generally longer, the more compressed air is sprayed into the filter bag, the ash removal effect is good, but after the blowing time is increased to a certain value, the influence on the ash removal effect is not obvious.

How to control the blowing pressure, the blowing period and the blowing time of the dust cleaning system of the pulse bag-type dust remover is a key measure for improving the dust removal efficiency of the pulse bag-type dust remover. In addition, how to remove and prevent the wet dust from being bonded on the wall of the dust hopper is another key measure for improving the dust removal efficiency of the pulse bag-type dust remover.

Disclosure of Invention

The utility model aims to solve the technical problem that a pulse bag dust collector capable of effectively removing dust from the wall of an ash hopper is provided.

In order to solve the technical problem, the pulse bag dust collector with the functions of vibration beating and blowing self-adjustment comprises a dust collection box body, wherein an upper box body is fixed above the dust collection box body, and a purified gas outlet is formed in the upper box body; an ash bucket is fixed below the dust removal box body, a dust gas inlet is formed in the side wall of the ash bucket, a dust outlet is formed below the ash bucket, an ash discharge device is arranged above the dust outlet, and a rapping device is fixed on the side wall of the ash bucket; the dust concentration transmitter is arranged on the dust gas inlet, the weight type charge level indicator is arranged on the lower portion of the dust removal box body, the dust concentration transmitter and the weight type charge level indicator are connected with the input end of the control system, and the output end of the control system is connected with the rapping device.

Preferably, the ash discharging device is provided with an electric gate valve, and the electric gate valve is connected with the output end of the control system.

Preferably, the upper box body is covered with an upper cover plate, an injection pipe is arranged in the upper box body, a pulse electromagnetic valve is arranged on the injection pipe, and the pulse electromagnetic valve is connected with the output end of the control system.

Preferably, the side wall of the dust removal box body is connected with an air bag, the air bag is provided with a pressure transmitter, and the pressure transmitter is connected with the output end of the control system.

Preferably, a micro differential pressure switch is arranged on the purified gas outlet and is connected with the input end of the control system.

Preferably, a dust removal filter bag is arranged in the dust removal box body, the dust removal filter bag is vertically hung on the venturi tube through a pattern plate, and a filter bag frame is sleeved on the outer side of the dust removal filter bag.

Preferably, the ash discharge device comprises a heavy hammer arranged outside the shell, the heavy hammer is wound on the winding drum through a steel wire rope sequentially through a measuring wheel, a swing rod mechanism and a guide wheel in the shell, and the winding drum is connected with the swing rod mechanism.

Preferably, the weight type charge level indicator comprises a detection unit arranged in a shell, the detection unit is connected with the input end of a control unit through a metering unit, the output end of the control unit is connected with a motor, and an electrical interface is arranged below the shell of the weight type charge level indicator.

Preferably, the lower end of the shell of the weight type level indicator is provided with an access window.

Preferably, an inspection window is arranged on the side wall of the dust removal box.

After the structure of the oil filter is adopted, the utility model discloses a pulse bag dust remover makes the filter bag be in good filtration all the time, can improve the dust collection efficiency of pulse bag dust remover by a large margin, improves the dust removal effect, reduces customer equipment maintenance and operation burden.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the pulse bag-type dust collector with self-adjusting functions of rapping and blowing.

Fig. 2 is a schematic structural view of the ash discharging device of the present invention.

Fig. 3 is a schematic structural diagram of the weight type level gauge of the present invention.

In the figure: 1 is an upper cover plate, 2 is an upper box body, 3 is a micro differential pressure switch, 4 is a pattern plate, 5 is a dust removal filter bag, 6 is a dust removal box body, 7 is an inspection window, 8 is a weight type charge level indicator, 9 is a dust hopper, 10 is a bracket, 11 is an electric gate valve, 12 is an ash discharge device, 13 is a rapping device, 14 is a dust concentration transmitter, 15 is a control system, 16 is a filter bag frame, 17 is a venturi tube, 18 is an air bag, 19 is a pressure transmitter, 20 is a pulse electromagnetic valve, 21 is a blowing tube,

81 is a control unit, 82 is an electrical interface, 83 is an access panel, 84 is a metering unit, 85 is a detection unit, 86 is a motor,

121 is a heavy hammer, 122 is a mounting flange, 123 is a measuring wheel, 124 is a swing rod mechanism, 125 is a soot blower, 126 is a guide wheel, 127 is a steel wire rope, and 128 is a winding drum.

Detailed Description

As shown in figure 1, the utility model discloses a take pulse sack cleaner of rapping and jetting self-interacting, including dust removal box 6, the 6 lower extremes of dust removal box are fixed with support 10. An upper box body 2 is fixed above the dust removal box body 6, and a purified gas outlet is formed in the upper box body 2; an ash bucket 9 is fixed below the dust removal box body 6, a dust gas inlet is formed in the side wall of the ash bucket 9, a dust outlet is formed below the ash bucket 9, an ash discharge device 12 is arranged above the dust outlet, and a rapping device 13 is fixed on the side wall of the ash bucket 9; the dust inlet is provided with a dust concentration transmitter 14, the dust concentration transmitter 14 is connected with the input end of a control system 15, and the output end of the control system 15 is connected with a rapping device 13. The rapping device 13 is a novel vibration arch-breaking device which is directly arranged at the lower part of an ash bucket 9 of the pulse bag dust remover, and 1 rapping device is respectively arranged at the left side and the right side of the lower part of the ash bucket of the pulse bag dust remover. Utilize the centrifugal action of novel high-speed rotatory production of vibrating motor, form high-frequency vibration, eliminate the friction of dust and ash bucket wall to make the dust fall into the ash bucket bottom smoothly. The dust concentration transmitter 14 is installed at a dust gas inlet to monitor the dust concentration of the inlet in real time, the transmitter adopts a non-contact charge induction technology to detect the dust concentration, is simple to operate, free of maintenance, high in reliability and free of cleaning, and is connected with the control system 15 through a 2-wire system 4-20mA output signal. An electric gate valve 11 is arranged on the ash discharging device 12, and the electric gate valve 11 is connected with the output end of the control system 15. The dust collection device is characterized in that a micro differential pressure switch 3 is arranged on the purified gas outlet, the micro differential pressure switch 3 is connected with the input end of a control system 15, and the micro differential pressure switch 3 is installed at the purified gas outlet and used for detecting the dust accumulation condition on the surface of the filter bag. And an inspection window 7 is arranged on the side wall of the dust removal box body 6.

As shown in figure 1, a dust-removing filter bag 5 is arranged in the dust-removing box body 6, the dust-removing filter bag 5 is vertically hung on a venturi tube 17 through a pattern plate 4, a filter bag frame 16 is sleeved outside the dust-removing filter bag 5, the venturi tube 17 adopts an iron venturi tube and is arranged on the filter bag frame, the air flow is thinned from thick to thin so as to accelerate the air flow velocity, the air forms a low-pressure area at the outer ring of the outlet of the venturi tube 17, and the working efficiency of the dust remover and the service life of the filter bag can be stably, reliably and effectively improved. The side wall of the dedusting box body 6 is connected with an air bag 18, the air bag 18 is provided with a pressure transmitter 19, and the pressure transmitter 19 is connected with the output end of the control system 15. A pressure transmitter 19 is arranged on an air bag 18 of the pulse bag-type dust collector, and the pressure in the air bag 18 is monitored in real time.

As shown in fig. 1, an upper cover plate 1 covers the upper box body 2, a blowing pipe 21 is arranged in the upper box body 2, a pulse solenoid valve 20 is arranged on the blowing pipe 21, and the pulse solenoid valve 20 is connected with the output end of the control system 15. The pulse electromagnetic valve 20 is installed at a dust outlet, the compressed air in the air bag 18 is sprayed to the filter bag one by one through the opening and closing of the electromagnetic effect control valve so as to ensure the processing capacity and dust collection efficiency of the dust collector, the compressed air in the air bag 18 is sprayed to the filter bag through the holes from the pulse valve to the spraying pipe in a very short time, the filter bag is accumulated and expanded instantly, most dust deposited on the surface of the filter bag falls off, and the filter bag is cleaned.

As shown in fig. 2, the ash discharging device 12 includes a weight 121 disposed outside the housing, the weight 121 is wound on a winding drum 128 through a wire rope 127 sequentially passing through a measuring wheel 123, a swing link mechanism 124 and a guide wheel 126 in the housing, and the winding drum 128 is connected with the swing link mechanism 124.

As shown in fig. 3, a weight type level indicator 8 is arranged at the lower part of the dust removing box body 6, the weight type level indicator 8 is connected with the input end of the control system 15, the weight type level indicator 8 comprises a detection unit 85 arranged in the shell, the detection unit 85 is connected with the input end of a control unit 81 through a metering unit 84, the output end of the control unit 81 is connected with a motor 86, and an electrical interface 82 is arranged below the shell of the weight type level indicator 8. And the lower end of the shell of the weight type charge level indicator 8 is provided with an access window 83.

The working principle of the utility model is as follows:

the device utilizes weight formula charge level indicator 8 to measure the dust thickness of ash bucket, when dust thickness reaches the row's ash thickness value of settlement, opens the electronic push-pull valve 11 of ash discharge automatically, starts rapping device 13 simultaneously and shakes and beats to the ash bucket 9 walls, and the abundant ash of the assurance ash discharge device 12 is arranged, self-closing row's ash electronic push-pull valve 11 after the row's ash is ended. The control system 15 receives the ash bucket material level signal transmitted by the weight type material level indicator 8, when the dust thickness reaches a set value, the relay works, the ash discharge electric gate valve 11 is opened, the rapping device is started to rap the ash bucket wall, after the ash discharge is finished, the electric appliance works, the ash discharge electric gate valve 11 is closed, relevant actions are stopped, and the dust removal filtering work is started. The weight type charge level indicator 8 has no mechanical contact and reliable operation. The sensor of the detection unit 85 is placed at the top of the ash bucket, the dust thickness of the ash bucket is automatically detected at regular time, the heavy hammer starts to descend from the initial position at the top of the ash bucket 9 during each measurement, and the heavy hammer immediately returns to the top of the ash bucket to wait for the next measurement after meeting the dust level. The weight type charge level indicator 8 fundamentally avoids the pollution of dust and the like, and the measurement is accurate.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many changes and modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.

Claims

1. The utility model provides a pulse sack cleaner of area rapping and jetting self-interacting, includes dust removal box (6), its characterized in that: an upper box body (2) is fixed above the dust removal box body (6), and a purified gas outlet is formed in the upper box body (2); an ash bucket (9) is fixed below the dust removal box body (6), a dust gas inlet is formed in the side wall of the ash bucket (9), a dust outlet is formed below the ash bucket (9), an ash discharge device (12) is arranged above the dust outlet, and a rapping device (13) is fixed on the side wall of the ash bucket (9); be provided with dust concentration changer (14) on the dirt gas entry, dust removal box (6) lower part is provided with weight formula charge level indicator (8), dust concentration changer (14), weight formula charge level indicator (8) all are connected with control system (15) input, control system (15) output is connected with rapping device (13).

2. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 1 is characterized by that: an electric gate valve (11) is arranged on the ash discharging device (12), and the electric gate valve (11) is connected with the output end of the control system (15).

3. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 1 is characterized by that: the upper box body (2) is covered with an upper cover plate (1), a blowing pipe (21) is arranged in the upper box body (2), a pulse electromagnetic valve (20) is arranged on the blowing pipe (21), and the pulse electromagnetic valve (20) is connected with the output end of a control system (15).

4. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 1 is characterized by that: the dust removal box is characterized in that an air bag (18) is connected to the side wall of the dust removal box body (6), a pressure transmitter (19) is arranged on the air bag (18), and the pressure transmitter (19) is connected with the output end of the control system (15).

5. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 1 is characterized by that: the purified gas outlet is provided with a micro differential pressure switch (3), and the micro differential pressure switch (3) is connected with the input end of a control system (15).

6. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 1 is characterized by that: the dust removal box body (6) is internally provided with a dust removal filter bag (5), the dust removal filter bag (5) is vertically hung on the venturi tube (17) through the pattern plate (4), and the outer side of the dust removal filter bag (5) is sleeved with a filter bag frame (16).

7. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 1 is characterized by that: the ash discharging device (12) comprises a heavy hammer (121) arranged outside a shell, the heavy hammer (121) is wound on a winding drum (128) through a steel wire rope (127) sequentially through a measuring wheel (123), a swing rod mechanism (124) and a guide wheel (126) in the shell, and the winding drum (128) is connected with the swing rod mechanism (124).

8. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 1 is characterized by that: the weight type charge level indicator (8) comprises a detection unit (85) arranged in a shell, the detection unit (85) is connected with the input end of a control unit (81) through a metering unit (84), the output end of the control unit (81) is connected with a motor (86), and an electrical interface (82) is arranged below the shell of the weight type charge level indicator (8).

9. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 8, is characterized by that: and an access window (83) is formed at the lower end of the shell of the weight type charge level indicator (8).

10. The pulse bag dust collector with the functions of rapping and blowing self-regulation according to claim 1 is characterized by that: and an inspection window (7) is arranged on the side wall of the dust removal box body (6).