Automatic ash removal device for inlet transverse pipe of bag-type dust collector

Abstract

The utility model relates to an automatic dust cleaning device for an inlet transverse pipe of a bag-type dust remover, which comprises a dust removal transverse pipe, a drying dust remover arranged on the upper end surface of the dust removal transverse pipe and connected with a dust removal induced draft fan, a blanking box arranged on the lower end surface of the dust removal transverse pipe, a lining plate fixedly mounted on the bottom surface of the dust removal transverse pipe, and a cavity formed by the dust removal transverse pipe and the lining plate, the bottom surface of the lining plate is fixedly connected with a nitrogen pipe; a control valve I is mounted on the nitrogen pipe; the surface of the dedusting transverse pipe is fixedly connected with a horizontal elbow purging pipe I and a vertical flaring purging pipe I, and the end parts of the horizontal elbow purging pipe I and the vertical flaring purging pipe I are fixedly connected with a blowing air bag; an electromagnetic valve I is mounted on the horizontal elbow purging pipe I, and an electromagnetic valve II is mounted on the vertical flaring purging pipe I. The utility model has the beneficial effects of reasonable structural design, convenience in operation, low production and processing cost, capability of realizing automatic timing purging and continuous work, low possibility of failure, and safety and reliability in use.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment for bag dust collectors, in particular to an automatic dust cleaning device for an inlet transverse pipe of a bag dust collector. Background Art

[0002] The most commonly used dust collector inlet duct is the dust collection horizontal pipe (except for vertical installation). After the dust collection fan is sucked and guided, the dust-containing gas enters the dust collector for filtration, and the dust impurities are filtered out. During the suction guidance process, due to the influence of resistance and the length of the dust collection horizontal pipe, as time goes by, some dust impurities will be deposited at the bottom of the dust collection horizontal pipe. Once the accumulated height is too high, the following will occur:

[0003] 1) The inner diameter of the dust collecting horizontal pipe at the dust collector inlet duct becomes smaller. To maintain the original filtering efficiency, the dust collecting fan speed must be increased and the inlet pressure must be increased. The pressure difference of the dust collector increases, causing damage to the internal equipment of the dust collector;

[0004] 2) The inner diameter of the dust collector inlet duct becomes smaller, which cannot guarantee the long-term operation of the main equipment. After the production process is forced to stop, manual cleaning poses a great safety risk. Utility Model Content

[0005] The utility model aims to provide an automatic dust cleaning device for the inlet transverse pipe of a bag dust collector which has a reasonable structural design, convenient operation, low production and processing cost, can realize automatic timed blowing, works continuously, is not prone to failure, and is safe and reliable to use.

[0006] The utility model discloses an automatic dust cleaning device for an inlet transverse pipe of a bag dust collector, comprising a dust collecting transverse pipe, an upper end surface of the dust collecting transverse pipe is provided with a dry dust collector, the dry dust collector is connected with a dust collecting induced draft fan, a lower end surface of the dust collecting transverse pipe is provided with a material discharge box, a lining plate is fixedly installed on the bottom surface of the dust collecting transverse pipe, the dust collecting transverse pipe and the lining plate form a cavity, a nitrogen pipe is fixedly connected to the bottom surface of the lining plate, and a control valve I is installed on the nitrogen pipe; a horizontal elbow purge pipe I and a vertical flared purge pipe I are fixedly connected to the surface of the dust collecting transverse pipe, and a spray air bag is fixedly connected to the ends of the horizontal elbow purge pipe I and the vertical flared purge pipe I; an electromagnetic valve I is installed on the horizontal elbow purge pipe I, and an electromagnetic valve II is installed on the vertical flared purge pipe I.

[0007] The surface of the dust removal horizontal pipe is fixedly connected with a horizontal elbow purge pipe II and a vertical flared purge pipe II, the ends of the horizontal elbow purge pipe II and the vertical flared purge pipe II are fixedly connected with a blowing air bag, the horizontal elbow purge pipe II is installed with an electromagnetic valve III, and the vertical flared purge pipe II is installed with an electromagnetic valve IV.

[0008] The surface of the dust removal horizontal pipe is fixedly connected with a horizontal elbow purge pipe III and a vertical flared purge pipe III, the ends of the horizontal elbow purge pipe III and the vertical flared purge pipe III are fixedly connected with a blowing air bag, the horizontal elbow purge pipe III is installed with an electromagnetic valve V, and the vertical flared purge pipe III is installed with an electromagnetic valve VI.

[0009] The solenoid valve I, solenoid valve II, solenoid valve III, solenoid valve IV, solenoid valve V and solenoid valve VI are electrically connected to the relay.

[0010] The nitrogen pipe arranged on the bottom of the lining can provide nitrogen to the dust removal horizontal pipe, and the control valve I can regulate the incoming nitrogen; the setting of the lining is more conducive to the installation of the nitrogen pipe; the nitrogen injected by the nitrogen pipe is used to suspend the dust flowing through the bottom of the dust removal horizontal pipe, and the dust removal induced draft fan arranged can provide total power for the flow of dust-laden gas; the set blowing air bag can provide compressed air to the horizontal elbow purge pipe I, horizontal elbow purge pipe II, horizontal elbow purge pipe III and vertical flared purge pipe I, vertical flared purge pipe II, vertical flared purge pipe III, so that the pressure in the purge process remains constant, ensuring that the compressed air is sufficient and uniform.

[0011] The end outlet directions of the horizontal elbow purge pipe I, horizontal elbow purge pipe II, and horizontal elbow purge pipe III are consistent with the airflow direction in the dust removal horizontal pipe; the ends of the vertical flared purge pipe I, vertical flared purge pipe II, and vertical flared purge pipe III are set as bell mouths.

[0012] The horizontal elbow purge pipe Ⅰ, horizontal elbow purge pipe Ⅱ, horizontal elbow purge pipe Ⅲ; vertical flared purge pipe Ⅰ, vertical flared purge pipe Ⅱ, vertical flared purge pipe Ⅲ are set up, and there are three groups of purge pipes in total. Each group of purge pipes includes horizontal elbow purge pipe Ⅰ and vertical flared purge pipe Ⅰ, horizontal elbow purge pipe Ⅱ and vertical flared purge pipe Ⅱ, horizontal elbow purge pipe Ⅲ and vertical flared purge pipe Ⅲ, which can be evenly arranged in the dust removal horizontal pipe, which is more conducive to the purging and removal of dust in the dust removal horizontal pipe, making the dust removal more thorough; the ends of the vertical flared purge pipe Ⅰ, vertical flared purge pipe Ⅱ, and vertical flared purge pipe Ⅲ are set as bell mouths, which can increase the purge area; the vertical flared purge pipe Ⅰ and the vertical flared purge pipe Ⅱ, vertical expansion purge pipe Ⅲ, three groups of vertical expansions use the high-pressure nitrogen in the blowing air bag to scatter the accumulated dust attached to the surface of the lining plate, and use the nitrogen introduced from the nitrogen pipe at the bottom of the lining plate to suspend the accumulated dust attached to the surface of the lining plate; then use the high-pressure nitrogen in the blowing air bag to blow the ash scattered and suspended in the dust removal horizontal pipe into the dry dust collector through the horizontal elbow purge pipe Ⅰ, horizontal elbow purge pipe Ⅱ, and horizontal elbow purge pipe Ⅲ, and then use the dust removal induced draft fan to quickly clean the dust attached to the surface of the lining plate, which can solve the problem that the accumulated dust deposited in the dust removal horizontal horizontal pipe will gradually clog the horizontal horizontal pipe at the entrance of the dry dust collector over time, and eventually lead to an increase in the pressure difference between the inlet and outlet of the dry dust collector and a fault shutdown.

[0013] Connect solenoid valve Ⅰ, solenoid valve Ⅱ, solenoid valve Ⅲ, solenoid valve Ⅳ, solenoid valve Ⅴ and solenoid valve Ⅵ to the relay, adjust the control relay, and adjust the time interval of the overall operation of the relay, and control the third group of valve groups, i.e., solenoid valve V and solenoid valve Ⅵ, so that the horizontal elbow purge pipe Ⅲ and the vertical expansion purge pipe Ⅲ can be purged; then control the second group of valve groups to operate the horizontal elbow purge pipe Ⅱ and the vertical expansion purge pipe Ⅱ to achieve the removal of dust in the dust removal horizontal pipe; finally control the first group of valve groups, i.e., solenoid valve Ⅰ and solenoid valve Ⅱ to open, and achieve the purge of the first group of horizontal elbow purge pipe Ⅰ and vertical expansion purge pipe Ⅰ, so that the dust in the dust removal horizontal pipe can be purged at intervals and stages, and the dust can be gradually blown out of the dust removal horizontal pipe, so as to achieve the complete removal of dust in the dust removal horizontal pipe, and the automatic operation saves time and labor, and is safe and reliable to use.

[0014] The blowing air bag is provided with an air bag inlet pipe, and the air bag inlet pipe is provided with a control valve II.

[0015] The blowing air bag is equipped with a safety valve and a pressure gauge.

[0016] The installed pressure gauge can monitor the pressure in the injection air bag, detect problems in time, handle them in time and avoid accidents.

[0017] Beneficial effects of the utility model:

[0018] 1) Horizontal elbow purge pipe Ⅰ, horizontal elbow purge pipe Ⅱ, horizontal elbow purge pipe Ⅲ; vertical flared purge pipe Ⅰ, vertical flared purge pipe Ⅱ, vertical flared purge pipe Ⅲ are set up, and a total of three groups of purge pipes are set up. Each group of purge pipes includes horizontal elbow purge pipe Ⅰ and vertical flared purge pipe Ⅰ, horizontal elbow purge pipe Ⅱ and vertical flared purge pipe Ⅱ, horizontal elbow purge pipe Ⅲ and vertical flared purge pipe Ⅲ, which can be evenly arranged in the dust removal horizontal pipe, which is more conducive to the purging and removal of dust in the dust removal horizontal pipe, making the dust removal more thorough; the ends of the vertical flared purge pipe Ⅰ, vertical flared purge pipe Ⅱ, and vertical flared purge pipe Ⅲ are set as bell mouths, which can increase the purge area; the vertical flared purge pipe Ⅰ and the vertical flared purge pipe Ⅱ are set up, and the vertical flared purge pipe Ⅲ is set up. Tube II, vertical expansion purge tube III, three groups of vertical expansions use the high-pressure nitrogen in the blowing air bag to scatter the accumulated dust attached to the surface of the lining and use the nitrogen introduced from the nitrogen pipe at the bottom of the lining to suspend the accumulated dust attached to the surface of the lining; then use the high-pressure nitrogen in the blowing air bag to blow the ash scattered and suspended in the dust removal horizontal pipe into the dry dust collector through the horizontal elbow purge tube I, horizontal elbow purge tube II, and horizontal elbow purge tube III, and then use the dust removal induced draft fan to quickly clean the dust attached to the surface of the lining, which can solve the problem that the horizontal horizontal pipe at the entrance of the dry dust collector will gradually be blocked over time due to the accumulation of dust deposited in the horizontal horizontal pipe of the dust removal, which will eventually lead to an increase in the pressure difference between the inlet and outlet of the dry dust collector and a malfunction and shutdown.

[0019] 2) Connect solenoid valve Ⅰ, solenoid valve Ⅱ, solenoid valve Ⅲ, solenoid valve Ⅳ, solenoid valve Ⅴ and solenoid valve Ⅵ to the relay, and adjust the control relay to adjust the time interval of the overall operation of the relay, and control the third group of valve groups, i.e., solenoid valve V and solenoid valve Ⅵ, so that the horizontal elbow purge pipe Ⅲ and the vertical expansion purge pipe Ⅲ can be purged; then control the second group of valve groups to operate the horizontal elbow purge pipe Ⅱ and the vertical expansion purge pipe Ⅱ to achieve the removal of dust in the dust removal horizontal pipe; finally, control the first group of valve groups, i.e., solenoid valve Ⅰ and solenoid valve Ⅱ to open, so as to achieve the purge of the first group of horizontal elbow purge pipe Ⅰ and vertical expansion purge pipe Ⅰ, so as to achieve the interval and staged purge of the dust in the dust removal horizontal pipe, gradually blow the dust out of the dust removal horizontal pipe, and achieve the complete removal of dust in the dust removal horizontal pipe, with automatic operation, more time-saving and labor-saving, and safe and reliable use.

[0020] 3) The nitrogen pipe installed on the bottom of the lining can provide nitrogen to the dust removal horizontal pipe, and the control valve I can regulate the incoming nitrogen; the setting of the lining is more conducive to the installation of the nitrogen pipe; the nitrogen injected by the nitrogen pipe can suspend the dust flowing through the bottom of the dust removal horizontal pipe, and the dust removal induced draft fan installed can provide total power for the flow of dust-laden gas; the installed blowing air bag can provide compressed air to the horizontal elbow purge pipe I, horizontal elbow purge pipe II, horizontal elbow purge pipe III and vertical flared purge pipe I, vertical flared purge pipe II, vertical flared purge pipe III, so that the pressure in the purge process remains constant, ensuring that the compressed air is sufficient and uniform.

[0021] 4) The device has a reasonable structural design, convenient operation, low production and processing cost, can realize automatic timed purging, works continuously, is not prone to failure, is safe and reliable to use, and has been put into use with good results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] In the figure: dust removal horizontal pipe 1, liner nitrogen pipe 2, control valve Ⅰ3, liner 4, air bag inlet pipe 5, control valve Ⅱ6, safety valve 7, pressure gauge 8, injection air bag 9, solenoid valve Ⅰ10, solenoid valve Ⅱ11, solenoid valve Ⅲ12, solenoid valve Ⅳ13, solenoid valve Ⅴ14, solenoid valve Ⅵ15, relay 16, unloading box 17, dry dust collector 18, dust removal induced draft fan 19, horizontal elbow purge pipe Ⅰ20, vertical expansion purge pipe Ⅰ21, horizontal elbow purge pipe Ⅱ22, vertical expansion purge pipe Ⅱ23, horizontal elbow purge pipe Ⅲ24, vertical expansion purge pipe Ⅲ25. DETAILED DESCRIPTION

[0024] Example 1.

[0025] The following will be combined with the attached Figure 1 The utility model is further described.

[0026] The utility model comprises a dust removal horizontal pipe 1, a liner nitrogen pipe 2, a control valve I3, a liner 4, an air bag inlet pipe 5, a control valve II6, a blowing air bag 9, a solenoid valve I10, a solenoid valve II11, a solenoid valve III12, a solenoid valve IV13, a solenoid valve V14, a solenoid valve VI15, a relay 16, a material box 17, a dry dust collector 18, a dust removal fan 19, a horizontal elbow purge pipe I20, a vertical expansion purge pipe I21, a horizontal elbow purge pipe II22, a vertical expansion purge pipe II23, a horizontal elbow purge pipe III24, and a vertical expansion purge pipe III25. The specific structure is a dust removal horizontal pipe 1, and the upper end surface of the dust removal horizontal pipe 1 is provided with a dry dust removal The dry dust collector 18 is connected to the dust removal fan 19, the lower end surface of the dust removal horizontal pipe 1 is provided with a feed box 17, the bottom surface of the dust removal horizontal pipe 1 is fixedly installed with a lining plate 4, the dust removal horizontal pipe 1 and the lining plate 4 form a cavity, the bottom surface of the lining plate 4 is fixedly connected with a nitrogen pipe 2, and the nitrogen pipe 2 is installed with a control valve Ⅰ3; the surface of the dust removal horizontal pipe 1 is fixedly connected with a horizontal elbow purge pipe Ⅰ20 and a vertical expansion purge pipe Ⅰ21, and the ends of the horizontal elbow purge pipe Ⅰ20 and the vertical expansion purge pipe Ⅰ21 are fixedly connected with a blowing air bag 9; the horizontal elbow purge pipe Ⅰ20 is installed with a solenoid valve Ⅰ10, and the vertical expansion purge pipe Ⅰ21 is installed with a solenoid valve Ⅱ11.

[0027] The surface of the dust removal horizontal pipe 1 is fixedly connected with a horizontal elbow purge pipe Ⅱ22 and a vertical flared purge pipe Ⅱ23, the ends of the horizontal elbow purge pipe Ⅱ22 and the vertical flared purge pipe Ⅱ23 are fixedly connected with a blowing air bag 9, the horizontal elbow purge pipe Ⅱ22 is installed with a solenoid valve Ⅲ12, and the vertical flared purge pipe Ⅱ23 is installed with a solenoid valve Ⅳ13.

[0028] A horizontal elbow purge pipe III24 and a vertical flared purge pipe III25 are fixedly connected to the surface of the dust removal horizontal pipe 1, and a blowing air bag 9 is fixedly connected to the ends of the horizontal elbow purge pipe III24 and the vertical flared purge pipe III25. A solenoid valve V14 is installed on the horizontal elbow purge pipe III24, and a solenoid valve VI15 is installed on the vertical flared purge pipe III25.

[0029] The solenoid valve I10 , the solenoid valve II11 , the solenoid valve III12 , the solenoid valve IV13 , the solenoid valve V14 and the solenoid valve VI15 are electrically connected to the relay 16 .

[0030] The end outlet directions of the horizontal elbow purge pipe I20, horizontal elbow purge pipe II22, and horizontal elbow purge pipe III24 are consistent with the airflow direction in the dust removal horizontal pipe 1; the ends of the vertical expansion purge pipe I21, vertical expansion purge pipe II23, and vertical expansion purge pipe III25 are set as bell mouths.

[0031] The blowing air bag 9 is provided with an air bag inlet pipe 5 , and the air bag inlet pipe 5 is provided with a control valve II 6 .

[0032] The models of the solenoid valve I10, the solenoid valve II11, the solenoid valve III12, the solenoid valve IV13, the solenoid valve V14 and the solenoid valve VI15 are: 2W-160-20B; the model of the relay 16 is: SS-94B / 2-1.

[0033] The model of the control valve I3 and the control valve II6 is: DN32.

[0034] Instructions for use: The nitrogen pipe 2 arranged on the bottom of the lining plate 4 can provide nitrogen to the dust removal horizontal pipe 1, and the control valve Ⅰ3 can regulate the incoming nitrogen; the arrangement of the lining plate 4 is more conducive to the installation of the nitrogen pipe 2; the nitrogen injected by the nitrogen pipe 2 is used to suspend the dust flowing through the bottom of the dust removal horizontal pipe 1, and the dust removal induced draft fan 19 arranged can provide total power for the flow of dust-laden gas; the arranged blowing air bag 9 can provide compressed air to the horizontal elbow purge pipe Ⅰ20, the horizontal elbow purge pipe Ⅱ22, the horizontal elbow purge pipe Ⅲ24 and the vertical expansion purge pipe Ⅰ21, the vertical expansion purge pipe Ⅱ23, and the vertical expansion purge pipe Ⅲ25; by adjusting the control relay 16, the time interval of the overall operation of the relay 16 can be adjusted, and the third group of valve groups, namely the solenoid valve Ⅴ14 and the solenoid valve Ⅵ15, can be controlled so that the horizontal elbow purge pipe Ⅲ24 and the vertical expansion purge pipe Ⅲ25 can be operated at the same time. Tube III25 is purged, solenoid valve VI15 is opened for 2 seconds, solenoid valve V14 is opened for 1 second, and the purging is completed; after an interval of 3 seconds, the second group of valve groups, solenoid valve III12 and solenoid valve IV13 are controlled to make the horizontal elbow purging tube II22 and the vertical expansion purging tube II23 operate, solenoid valve IV13 is opened for 2 seconds, and solenoid valve III12 is opened for 1 second to complete the purging, so as to remove the dust in the dust removal horizontal tube 1; after an interval of 3 seconds, the first group of valve groups, i.e., solenoid valve I10 and solenoid valve II11 are finally controlled to be opened, solenoid valve II11 is opened for 2 seconds, and solenoid valve I10 is opened for 1 second, to realize the purging of the first group of horizontal elbow purging tubes I20 and vertical expansion purging tubes I21, so that the dust in the dust removal horizontal tube 1 can be purged at intervals and stages, and the dust can be gradually blown out of the dust removal horizontal tube 1, so as to realize the thorough removal of the dust in the dust removal horizontal tube 1.

[0035] Example 2.

[0036] The following will be combined with the attached Figure 1 The utility model is further described.

[0037] The utility model comprises a dust removal horizontal pipe 1, a liner nitrogen pipe 2, a control valve I3, a liner 4, an air bag inlet pipe 5, a control valve II6, a safety valve 7, a pressure gauge 8, a blowing air bag 9, a solenoid valve I10, a solenoid valve II11, a solenoid valve III12, a solenoid valve IV13, a solenoid valve V14, a solenoid valve VI15, a relay 16, a material box 17, a dry dust collector 18, a dust removal fan 19, a horizontal elbow purge pipe I20, a vertical expansion purge pipe I21, a horizontal elbow purge pipe II22, a vertical expansion purge pipe II23, a horizontal elbow purge pipe III24, and a vertical expansion purge pipe III25. The specific structure is a dust removal horizontal pipe 1, and the upper end surface of the dust removal horizontal pipe 1 is arranged There is a dry dust collector 18, which is connected to the dust removal fan 19. A material discharge box 17 is arranged on the lower end face of the dust removal horizontal pipe 1. A lining plate 4 is fixedly installed on the bottom face of the dust removal horizontal pipe 1. The dust removal horizontal pipe 1 and the lining plate 4 form a cavity. A nitrogen pipe 2 is fixedly connected to the bottom face of the lining plate 4, and a control valve Ⅰ3 is installed on the nitrogen pipe 2; a horizontal elbow purge pipe Ⅰ20 and a vertical expansion purge pipe Ⅰ21 are fixedly connected to the surface of the dust removal horizontal pipe 1, and a spray air bag 9 is fixedly connected to the ends of the horizontal elbow purge pipe Ⅰ20 and the vertical expansion purge pipe Ⅰ21; a solenoid valve Ⅰ10 is installed on the horizontal elbow purge pipe Ⅰ20, and a solenoid valve Ⅱ11 is installed on the vertical expansion purge pipe Ⅰ21.

[0038] The surface of the dust removal horizontal pipe 1 is fixedly connected with a horizontal elbow purge pipe Ⅱ22 and a vertical flared purge pipe Ⅱ23, the ends of the horizontal elbow purge pipe Ⅱ22 and the vertical flared purge pipe Ⅱ23 are fixedly connected with a blowing air bag 9, the horizontal elbow purge pipe Ⅱ22 is installed with a solenoid valve Ⅲ12, and the vertical flared purge pipe Ⅱ23 is installed with a solenoid valve Ⅳ13.

[0039] A horizontal elbow purge pipe III24 and a vertical flared purge pipe III25 are fixedly connected to the surface of the dust removal horizontal pipe 1, and a blowing air bag 9 is fixedly connected to the ends of the horizontal elbow purge pipe III24 and the vertical flared purge pipe III25. A solenoid valve V14 is installed on the horizontal elbow purge pipe III24, and a solenoid valve VI15 is installed on the vertical flared purge pipe III25.

[0040] The solenoid valve I10 , the solenoid valve II11 , the solenoid valve III12 , the solenoid valve IV13 , the solenoid valve V14 and the solenoid valve VI15 are electrically connected to the relay 16 .

[0041] The end outlet directions of the horizontal elbow purge pipe I20, horizontal elbow purge pipe II22, and horizontal elbow purge pipe III24 are consistent with the airflow direction in the dust removal horizontal pipe 1; the ends of the vertical expansion purge pipe I21, vertical expansion purge pipe II23, and vertical expansion purge pipe III25 are set as bell mouths.

[0042] The blowing air bag 9 is provided with an air bag inlet pipe 5 , and the air bag inlet pipe 5 is provided with a control valve II 6 .

[0043] The blowing air bag 9 is provided with a safety valve 7 and a pressure gauge 8 .

[0044] Instructions for use: The nitrogen pipe 2 arranged on the bottom of the lining plate 4 can provide nitrogen to the dust removal horizontal pipe 1, and the control valve Ⅰ3 can regulate the incoming nitrogen; the arrangement of the lining plate 4 is more conducive to the installation of the nitrogen pipe 2; the nitrogen injected by the nitrogen pipe 2 is used to suspend the dust flowing through the bottom of the dust removal horizontal pipe 1, and the dust removal induced draft fan 19 arranged can provide total power for the flow of dust-laden gas; the arranged blowing air bag 9 can provide compressed air to the horizontal elbow purge pipe Ⅰ20, the horizontal elbow purge pipe Ⅱ22, the horizontal elbow purge pipe Ⅲ24 and the vertical expansion purge pipe Ⅰ21, the vertical expansion purge pipe Ⅱ23, and the vertical expansion purge pipe Ⅲ25; by adjusting the control relay 16, the time interval of the overall operation of the relay 16 can be adjusted, and the third group of valve groups, namely the solenoid valve Ⅴ14 and the solenoid valve Ⅵ15, can be controlled so that the horizontal elbow purge pipe Ⅲ24 and the vertical expansion purge pipe Ⅲ25 can be operated at the same time. Tube III25 is purged, solenoid valve VI15 is opened for 2 seconds, solenoid valve V14 is opened for 1 second, and the purging is completed; after an interval of 3 seconds, the second group of valve groups, solenoid valve III12 and solenoid valve IV13 are controlled to make the horizontal elbow purging tube II22 and the vertical expansion purging tube II23 operate, solenoid valve IV13 is opened for 2 seconds, and solenoid valve III12 is opened for 1 second to complete the purging, so as to remove the dust in the dust removal horizontal tube 1; after an interval of 3 seconds, the first group of valve groups, i.e., solenoid valve I10 and solenoid valve II11 are finally controlled to be opened, solenoid valve II11 is opened for 2 seconds, and solenoid valve I10 is opened for 1 second, to realize the purging of the first group of horizontal elbow purging tubes I20 and vertical expansion purging tubes I21, so that the dust in the dust removal horizontal tube 1 can be purged at intervals and stages, and the dust can be gradually blown out of the dust removal horizontal tube 1, so as to realize the thorough removal of the dust in the dust removal horizontal tube 1. The function of the safety valve 7 is to regulate the high-pressure nitrogen pressure in the injection air bag 9 to stabilize it; the pressure gauge 8 can monitor the pressure in the injection air bag 9, detect problems in time, deal with them in time, and avoid accidents.

Claims

1. An automatic dust cleaning device for the inlet transverse pipe of a bag filter, comprising a dust collecting transverse pipe (1), a dry dust collector (18) being arranged on the upper end surface of the dust collecting transverse pipe (1), the dry dust collector (18) being connected to a dust collecting induced draft fan (19), and a material discharge box (17) being arranged on the lower end surface of the dust collecting transverse pipe (1), characterized in that: A lining plate (4) is fixedly mounted on the bottom surface of the dust removal horizontal pipe (1), the dust removal horizontal pipe (1) and the lining plate (4) form a cavity, a nitrogen pipe (2) is fixedly connected to the bottom surface of the lining plate (4), and a control valve I (3) is mounted on the nitrogen pipe (2); a horizontal elbow purge pipe I (20) and a vertical flared purge pipe I (21) are fixedly connected to the surface of the dust removal horizontal pipe (1), and a spray air bag (9) is fixedly connected to the ends of the horizontal elbow purge pipe I (20) and the vertical flared purge pipe I (21); a solenoid valve I (10) is mounted on the horizontal elbow purge pipe I (20), and a solenoid valve II (11) is mounted on the vertical flared purge pipe I (21).

2. The automatic dust cleaning device for the inlet horizontal pipe of a bag filter according to claim 1, characterized in that: A horizontal elbow purge pipe II (22) and a vertical flared purge pipe II (23) are fixedly connected to the surface of the dust removal horizontal pipe (1); the ends of the horizontal elbow purge pipe II (22) and the vertical flared purge pipe II (23) are fixedly connected to a spray air bag (9); a solenoid valve III (12) is installed on the horizontal elbow purge pipe II (22), and a solenoid valve IV (13) is installed on the vertical flared purge pipe II (23).

3. The automatic dust cleaning device for the inlet transverse pipe of a bag filter according to claim 2, characterized in that: A horizontal elbow purge pipe III (24) and a vertical flared purge pipe III (25) are fixedly connected to the surface of the dust removal horizontal pipe (1); the ends of the horizontal elbow purge pipe III (24) and the vertical flared purge pipe III (25) are fixedly connected to a spray air bag (9); a solenoid valve V (14) is installed on the horizontal elbow purge pipe III (24), and a solenoid valve VI (15) is installed on the vertical flared purge pipe III (25).

4. The automatic dust cleaning device for the inlet transverse pipe of a bag filter according to claim 3, characterized in that: The solenoid valve I (10), the solenoid valve II (11), the solenoid valve III (12), the solenoid valve IV (13), the solenoid valve V (14) and the solenoid valve VI (15) are electrically connected to the relay (16).

5. The automatic dust cleaning device for the inlet transverse pipe of a bag filter according to claim 4, characterized in that: The outlet directions of the ends of the horizontal elbow purge pipe I (20), the horizontal elbow purge pipe II (22), and the horizontal elbow purge pipe III (24) are consistent with the airflow direction in the dust removal horizontal pipe (1); the ends of the vertical flared purge pipe I (21), the vertical flared purge pipe II (23), and the vertical flared purge pipe III (25) are configured as bell mouths.

6. The automatic dust cleaning device for the inlet horizontal pipe of a bag filter according to claim 4, characterized in that: The blowing air bag (9) is provided with an air bag inlet pipe (5), and the air bag inlet pipe (5) is provided with a control valve II (6).

7. The automatic dust cleaning device for the inlet transverse pipe of a bag filter according to claim 5, characterized in that: The blowing air bag (9) is equipped with a safety valve (7) and a pressure gauge (8).

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