Assembled cloth bag pulse dust collector

Abstract

The utility model relates to the technical field of pulse dust collectors, in particular to an assembled cloth bag pulse dust collector which comprises a lower conical hopper, supports are installed at the four corners of the lower conical hopper, a middle box body is connected to the upper side of the lower conical hopper, and an air collecting chamber and a pulse mechanism are connected to the upper end of the middle box body. According to the utility model, the upper ring beam, the first wall plate, the second wall plate, the lower ring beam, the lower conical hopper and the bracket are connected through bolts, and the sealing strips are arranged at the joints of the wall plates, so that the air tightness is ensured; the first wall plate and the second wall plate of the middle box body are manufactured in blocks, and can be quickly expanded through splicing when a large-specification dust remover needs to be adopted; the air inlet pressure is detected through the air inlet pressure gauge, when too much dust on the surface of the filter cloth bag affects air inlet, the pressure at the dust air inlet is increased, the dust air inlet can be closed, the pulse mechanism is started to conduct back flushing on the surface of the filter cloth bag, the dust falling through back flushing is discharged out of the air closing machine along the lower conical hopper, and the dust cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse dust collectors, and specifically relates to an assembled bag pulse dust collector. Background Art

[0002] A bag dust collector is a dry and efficient dust collector that uses filter bags made of fiber woven fabrics to capture and collect solid particles in dust-containing gases; the working principle of the bag dust collector is that dust particles are intercepted by the filter cloth fibers when passing through the filter cloth, and then enter the ash hopper following the airflow inertia, and the filtered clean gas is discharged from the air outlet.

[0003] Through retrieval, the publication number CN218249064U provides a bag pulse dust collector that is convenient for cleaning. Through the combined use of a limit support plate, a limit card hole, a storage sliding tube, a limit support rod, a limit stop block and a limit nut, the sealing baffle can be supported. Through the combined use of a guiding support plate and a cylinder, the position of the sealing baffle can be adjusted. By connecting the transverse baffle to the sealing baffle and adjusting the position of the transverse baffle, the difficulty of taking out the filter bag can be reduced, which is convenient for the staff to deeply clean the bag pulse dust collector body.

[0004] However, the structural components of this bag pulse dust collector are welded. During the welding process, the local heating and uneven cooling of the structural components will generate welding residual stress and welding deformation, which will have a certain degree of influence on the design dimensions, stability, aesthetics, and corrosion resistance of the structural components. Moreover, the welded structure is not conducive to the subsequent maintenance, repair, and transformation and upgrading of the product. Summary of the Utility Model

[0005] In view of the existing problems, the utility model provides an assembled bag pulse dust collector to solve the problems mentioned in the background art.

[0006] To solve the above problems, the present utility model provides an assembled bag pulse dust collector, which includes a lower conical hopper. Brackets are installed at the four corners of the lower conical hopper. The upper side of the lower conical hopper is connected to a middle box body. The upper end of the middle box body is connected to an air collecting chamber and a pulse mechanism. The lower conical hopper includes a conical dust collecting bin. A dust air inlet is connected to the side of the conical dust collecting bin. A closed blower is connected to the bottom end of the conical dust collecting bin. A motor is installed on the side wall of the closed blower. The output end of the motor is connected to a closing roller. The air collecting chamber includes a perforated plate. An air collecting box is arranged above the perforated plate. A clean air outlet is connected to the side wall of the air collecting box. A number of filter bags are installed on the perforated plate. The middle box body includes a lower ring frame installed at the upper end of the conical dust collecting bin and an upper ring frame installed under the perforated plate. A pair of first wall plates and second wall plates are installed between the lower ring frame and the upper ring frame. The pulse mechanism includes a fixed frame installed above the second wall plate. An air storage tank is installed at the upper end of the fixed frame. A number of air outlet pipes are connected to the upper end of the air storage tank. A pulse valve is installed at the connection of the air outlet pipe and the air storage tank.

[0007] Further, an intake pressure gauge is installed at the upper end of the dust air inlet.

[0008] Further, the air outlet pipe passes through the side wall of the air collecting box. A number of back blowing pipes are connected to the air outlet pipe. Each back blowing pipe corresponds to a filter bag and is located inside the filter bag.

[0009] Further, the pulse mechanism further includes a pulse valve controller installed on the side wall of the air collecting box. The pulse valve controller is electrically connected to the pulse valve.

[0010] Further, a sealing strip is installed inside the connection of the first wall plate and the second wall plate.

[0011] Further, the lower ring frame, the upper ring frame, the first wall plate, the second wall plate and the sealing strip are fixed by installation bolts.

[0012] The present utility model has the following beneficial effects compared with the prior art:

[0013] 1. In the present utility model, the connections between the upper ring frame, the first wall plate, the second wall plate, the lower ring frame, the lower conical hopper and the brackets are all bolt connections, and sealing strips are installed at the connections between the wall plates to ensure airtightness. The first wall plate and the second wall plate of the middle box body are made in blocks. When a large-scale dust collector is needed, it can be quickly expanded by splicing.

[0014] 2. In the present utility model, the dust air inlet is arranged on the side of the lower conical hopper. The airflow mixed with dust entering can be more evenly dispersed into each filter bag after being gathered.

[0015] 3. The utility model detects the intake air pressure through an intake air pressure gauge. When excessive dust on the surface of the filter bag affects air intake and the pressure at the dust air inlet increases, the dust air inlet can be closed, and the pulse mechanism is started to perform backwashing on the surface of the filter bag. The dust falling from the backwashing is discharged from the airtight blower along the lower hopper, improving the dust cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an assembled bag pulse dust collector;

[0017] Figure 2 is a schematic sectional view of the lower hopper part of an assembled bag pulse dust collector;

[0018] Figure 3 is a schematic diagram of the air collecting chamber and pulse mechanism part of an assembled bag pulse dust collector;

[0019] Figure 4 is a partial schematic view A of an assembled bag pulse dust collector;

[0020] Figure 5 is an exploded schematic view of the middle box body part of an assembled bag pulse dust collector;

[0021] Figure 6 is a partial schematic view B of an assembled bag pulse dust collector;

[0022] Figure 7 is a schematic sectional view of the parallel connection state of two machines of an assembled bag pulse dust collector;

[0023] Explanation of the reference numerals in the drawings:

[0024] 1. Lower hopper; 101. Conical dust collecting bin; 102. Dust air inlet; 103. Intake air pressure gauge; 104. Airtight blower; 105. Motor; 106. Airtight roller; 2. Air collecting chamber; 201. Perforated plate; 202. Air collecting box; 203. Clean air outlet; 204. Filter bag; 3. Middle box body; 301. Lower ring frame; 302. Upper ring frame; 303. First wall plate; 304. Second wall plate; 305. Sealing strip; 306. Bolt; 4. Pulse mechanism; 401. Gas storage tank; 402. Outlet pipe; 403. Pulse valve; 404. Pulse valve controller; 405. Fixed frame; 406. Backwashing pipe; 5. Bracket. DETAILED IMPLEMENTATION MANNER

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-7 , the present utility model provides an assembled bag pulse dust collector, including a lower conical hopper 1, brackets 5 are installed at the four corners of the lower conical hopper 1, the upper side of the lower conical hopper 1 is connected to a middle box body 3, the upper end of the middle box body 3 is connected to an air collecting chamber 2 and a pulse mechanism 4. The lower conical hopper 1 includes a conical dust collecting bin 101, a dust and air inlet 102 is connected to the side of the conical dust collecting bin 101, a closed blower 104 is connected to the bottom end of the conical dust collecting bin 101, a motor 105 is installed on the side wall of the closed blower 104, and the output end of the motor 105 is connected to a closing roller 106; the air collecting chamber 2 includes a perforated plate 201, an air collecting box 202 is arranged above the perforated plate 201, a clean air outlet 203 is connected to the side wall of the air collecting box 202, and a plurality of filter bags 204 are installed on the perforated plate 201; the middle box body 3 includes a lower ring frame 301 installed at the upper end of the conical dust collecting bin 101 and an upper ring frame 302 installed below the perforated plate 201, and a pair of first wall plates 303 and second wall plates 304 are installed between the lower ring frame 301 and the upper ring frame 302; the pulse mechanism 4 includes a fixed frame 405 installed above the second wall plate 304, an air storage tank 401 is installed at the upper end of the fixed frame 405, a plurality of air outlet pipes 402 are connected to the upper end of the air storage tank 401, and a pulse valve 403 is installed at the connection of the air outlet pipe 402 and the air storage tank 401.

[0027] Among them, an intake pressure gauge 103 is installed at the upper end of the dust and air inlet 102.

[0028] Among them, the air outlet pipe 402 passes through the side wall of the air collecting box 202, and a plurality of backwashing pipes 406 are connected to the air outlet pipe 402. Each backwashing pipe 406 corresponds to a filter bag 204 and is located inside the filter bag 204.

[0029] Among them, the pulse mechanism 4 further includes a pulse valve controller 404 installed on the side wall of the air collecting box 202, and the pulse valve controller 404 is electrically connected to the pulse valve 403.

[0030] Among them, a sealing strip 305 is installed inside the connection of the first wall plate 303 and the second wall plate 304.

[0031] Among them, the lower ring frame 301, the upper ring frame 302, the first wall panel 303, the second wall panel 304 and the sealing strip 305 are fixed by installation bolts 306.

[0032] Among them, both the lower ring frame 301 and the upper ring frame 302 are formed by bending two inner and outer steel plates into a channel shape and holding each other together to provide sufficient rigidity, and installation holes are provided above to facilitate the connection of the bolts 306 with the first wall panel 303, the second wall panel 304 and the sealing strip 305.

[0033] Among them, the first wall panel 303 and the second wall panel 304 are manufactured in blocks and can be quickly expanded when a large - scale dust collector is required.

[0034] Embodiment 1:

[0035] Refer to Figures 5-7 , when two machines are operating in parallel, place the lower hopper 1 and the support 5 side by side, and then reinstall the middle box body 3 starting from the lower ring frame 301 and the upper ring frame 302. Replace a pair of adjacent first wall panels 303 with the sealing strip 305 and install it between the two lower ring frames 301 and the upper ring frames 302 to make the interiors of the two middle box bodies 3 communicate, ensuring airtightness while increasing the processing efficiency. Then install the other parts onto the middle box body 3 to complete the rapid expansion of the dust collector.

[0036] Embodiment 2:

[0037] Refer to Figures 1-5 , during the dust removal operation, the dusty gas enters the interior of the conical dust collection bin 101 from the dust - air inlet 102. Among them, part of the dust falls into the airtight blower 104 along the conical dust collection bin 101, and the other dusty gas enters the filter bag 204 along the air duct. The gas filtered by the filter bag 204 is discharged from the clean gas outlet 203, and the dust is left on the filter bag 204. After a period of filtration, too much residual dust on the filter bag 204 begins to affect the air intake effect, causing the pressure at the intake pressure gauge 103 to rise. At this time, close the air inlet and start the pulse valve controller 404 to start the reverse flushing of the filter bag 204. Automatically control the pulse valve 403 through the pulse valve controller 404. The high - pressure gas reaches the reverse blowing pipe 406 from the gas storage tank 401 along the outlet pipe 402 to conduct pulse reverse blowing on the filter bag 204, blowing the residual dust on the filter bag 204 down into the conical dust collection bin 101. Start the motor 105 to drive the airtight roller 106 to discharge the dust and complete the dust removal operation.

[0038] The above are only the preferred specific embodiments of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. An assembled bag pulse dust collector, comprising a lower conical hopper (1), and brackets (5) are installed at four corners of the lower conical hopper (1), and it is characterized in that: The upper side of the lower hopper (1) is connected to the middle box body (3). The upper end of the middle box body (3) is connected to the air collecting chamber (2) and the pulse mechanism (4). The lower hopper (1) includes a conical dust collecting bin (101). A dust and air inlet (102) is connected to the side of the conical dust collecting bin (101). A closed blower (104) is connected to the bottom end of the conical dust collecting bin (101). A motor (105) is installed on the side wall of the closed blower (104). The output end of the motor (105) is connected to a closed air roller (106). The air collecting chamber (2) includes a perforated plate (201). An air collecting box (202) is arranged above the perforated plate (201). A clean air outlet (203) is connected to the side wall of the air collecting box (202). A number of filter bags (204) are installed on the perforated plate (201). The middle box body (3) includes a lower ring frame (301) installed at the upper end of the conical dust collecting bin (101) and an upper ring frame (302) installed below the perforated plate (201). A pair of first wall plates (303) and second wall plates (304) are installed between the lower ring frame (301) and the upper ring frame (302). The pulse mechanism (4) includes a fixed frame (405) installed above the second wall plate (304). An air storage tank (401) is installed at the upper end of the fixed frame (405). A number of air outlet pipes (402) are connected to the upper end of the air storage tank (401). A pulse valve (403) is installed at the connection of the air outlet pipe (402) and the air storage tank (401).

2. The assembled bag pulse dust collector according to claim 1, characterized in that: An intake pressure gauge (103) is installed at the upper end of the dust and air inlet (102).

3. The assembled bag pulse dust collector according to claim 1, characterized in that: The air outlet pipe (402) passes through the side wall of the air collecting box (202). A number of back blowing pipes (406) are connected to the air outlet pipe (402). Each back blowing pipe (406) corresponds to a filter bag (204) and is located inside the filter bag (204).

4. The assembled bag pulse dust collector according to claim 1, characterized in that: The pulse mechanism (4) further includes a pulse valve controller (404) installed on the side wall of the air collecting box (202). The pulse valve controller (404) is electrically connected to the pulse valve (403).

5. The assembled bag pulse dust collector according to claim 1, wherein: A sealing strip (305) is installed inside the connection of the first wall plate (303) and the second wall plate (304).

6. The assembled cloth bag pulse dust collector according to claim 5, characterized in that: The lower ring frame (301), the upper ring frame (302), the first wall plate (303), the second wall plate (304) and the sealing strip (305) are fixed by installation bolts (306).

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