Novel bin top dust collection system

Abstract

The utility model discloses a novel silo top dust collection system which comprises a plurality of silos, the upper ends of the silos are respectively provided with a bag-type dust collector and a vacuum pressure relief valve, the upper ends of the bag-type dust collectors are respectively communicated with branch pipelines, the upper ends of the branch pipelines are respectively communicated with a main pipeline, the branch pipelines are respectively provided with a manual butterfly valve and a pneumatic butterfly valve, and the vacuum pressure relief valve is communicated with the main pipeline. One side of each bag-type dust collector is provided with a pressure difference transmitter, the pressure difference transmitters are respectively communicated with the air inlet end of the bag-type dust collector and the air outlet end of the bag-type dust collector through pipelines, the main pipeline is communicated with a centrifugal fan, an electric adjusting butterfly valve is arranged between the main pipeline and the centrifugal fan, the air outlet end of the centrifugal fan is connected with an exhaust funnel, and the exhaust funnel is connected with the air inlet end of the bag-type dust collector. The independent bag-type dust collector is arranged at the upper end of each silo, so that the equipment is convenient to install, the space is saved, the dedusting ash is convenient to return to a process system, meanwhile, each bag-type dust collector is not independently provided with a centrifugal fan, all the bag-type dust collectors share one centrifugal fan, power utilization points are concentrated, and power supply is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of silo dust removal, in particular to a novel silo top dust collection system. Background Art

[0002] Currently, for dust removal on silo roofs, especially for dust removal on multiple silos, the following two methods are mostly used: one is to install an independent dust collector on each silo roof, equipped with a fan and exhaust pipe; the other is to use a centralized dust collection method, where multiple silos share one dust collector, and the dust-laden air in the silos is connected to the dust collector through a dust collection duct, and is also equipped with a fan and exhaust pipe. The first method is not convenient for pollutant emission detection due to the large number of exhaust points. The second method uses a single dust collector, which results in a larger dust collector. For small-diameter silos, there is not enough space for installation. If it is installed on an independent platform, dust ash conveying equipment needs to be added, which increases costs. At the same time, the flue gas entering the dust collector will directly impact the filter assembly, causing the center of the filter assembly to filter more smoke and dust, while the edge part will filter less. After long-term use, more dust will accumulate in the center of the filter assembly, while less dust will accumulate at the edge, affecting the filtering effect of the filter assembly. Utility Model Content

[0003] In view of the above problems, the present invention provides a novel silo roof dust collection system, which solves the above problems.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a novel silo top dust collection system, comprising a plurality of silos, wherein the upper ends of the plurality of silos are respectively provided with bag dust collectors and vacuum pressure release valves, the upper ends of the bag dust collectors are respectively connected to branch pipes, the upper ends of the branch pipes are respectively connected to the main pipes, the branch pipes are respectively provided with manual butterfly valves and pneumatic butterfly valves, a pressure differential transmitter is respectively provided on one side of the bag dust collector, the pressure differential transmitter is respectively connected to the air inlet end and the air outlet end of the bag dust collector through a pipe, the main pipe is connected to a centrifugal fan, an electric regulating butterfly valve is provided between the main pipe and the centrifugal fan, and the air outlet end of the centrifugal fan is connected to an exhaust pipe;

[0005] The bag dust collector is provided with a bag dust collection assembly and a spoiler assembly inside. The lower end of the spoiler assembly is provided with a reciprocating assembly. The spoiler assembly includes a fixed frame, an upper U plate, a lower U plate, a connecting plate and a fan blade. The fixed frame is detachably connected to the bag dust collector. The upper U plate is fixed on the fixed frame. The lower U plate is located between the two upper U plates and is fixed on the connecting plate.

[0006] The reciprocating assembly includes a mounting plate, a first gear, a second gear, a third gear and teeth. The mounting plate is fixed on the bag dust collector, the fan blade is rotatably connected to the mounting plate, the upper end of the fan blade is fixed with a first gear, the second gear and the third gear are rotatably connected to the mounting plate, and the connecting plate is provided with teeth meshing with the second gear.

[0007] Preferably, the bag dust removal assembly includes a fixed plate, a plurality of air outlets are opened at the upper end of the fixed plate, a plurality of cages corresponding to the air outlets are fixed at the lower end of the fixed plate, and dust bags are sleeved on the outer walls of the cages.

[0008] Preferably, a T-shaped sliding groove is symmetrically provided at the lower end of the fixing frame, and a T-shaped sliding block corresponding to the T-shaped sliding groove of the fixing frame is fixed at the upper end of the connecting plate.

[0009] Preferably, the second gear is meshed with the third gear for transmission, the second gear is transmitted through the teeth and the connecting plate, the outer wall of the first gear is provided with three groups of teeth and there are no teeth at other positions, and the distance between each group of teeth is less than the distance between the two points where the first gear contacts the second gear and the third gear respectively.

[0010] Preferably, gaps are provided between the upper U plates, and lower U plates with upward openings are provided at the lower ends of the gaps between the upper U plates. The upper U plates are fixed on the fixing frame, and the lower U plates are fixed on the connecting plate.

[0011] Preferably, the inner wall of the bag filter is provided with a long strip, and the left and right ends of the fixed plate and the fixed frame are respectively provided with sliding grooves, and the fixed plate and the fixed frame are slidably connected to the long strip of the bag filter through the sliding grooves.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. By using a separate bag dust collector at the top of each silo, the equipment is easy to install and saves space. The dust collected can be easily returned to the process system. At the same time, each bag dust collector is not equipped with a separate centrifugal fan. All bag dust collectors share one centrifugal fan, and the power points are concentrated, which is convenient for power supply.

[0014] 2. Each silo is equipped with a vacuum pressure relief valve at the top to ensure pressure balance inside the silo. All branch pipes of the bag dust collector are converged into a main pipe and discharged through the exhaust pipe, which is convenient for centralized detection of pollutant emissions.

[0015] 3. The combined operation of the turbulence component and the reciprocating component facilitates turbulence of the gas entering the bag filter, causing the gas to rise evenly, preventing the gas from directly impacting the bag filter component and improving the filtering effect of the bag filter component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the interior of the bag dust collector of the present invention;

[0018] Figure 3 Schematic diagram of the spoiler component of the present invention;

[0019] Figure 4 This is a schematic diagram of the reciprocating assembly of the present utility model;

[0020] Figure 5 It is a partially enlarged schematic diagram of the utility model;

[0021] Figure 6 This is a schematic diagram of the bag dust removal component of the present invention.

[0022] Explanations in the figure: 1. Silo; 2. Bag-type dust collector; 3. Pressure differential transmitter; 4. Manual butterfly valve; 5. Pneumatic butterfly valve; 6. Centrifugal fan; 7. Exhaust pipe; 11. Vacuum pressure relief valve; 21. Bag-type dust collector assembly; 22. Turbine assembly; 23. Reciprocating assembly; 211. Fixed plate; 212. Dust collector bag; 213. Cage; 214. Air outlet; 221. Fixed frame; 222. Upper U-plate; 223. Lower U-plate; 224. Connecting plate; 225. Fan blade; 231. Mounting plate; 232. First gear; 233. Second gear; 234. Third gear; 235. Teeth. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] See also Figure 1 and Figure 2A novel silo top dust collection system comprises a plurality of silos 1, wherein the upper ends of the plurality of silos 1 are respectively provided with bag dust collectors 2 and vacuum pressure relief valves 11. By adopting a separate bag dust collector 2 at the upper end of each silo 1, the equipment is easy to install and saves space, and the dust collected is easily returned to the process system. At the same time, each bag dust collector 2 is not separately equipped with a centrifugal fan 6. All bag dust collectors 2 share a centrifugal fan 6, and the power points are centralized for easy power supply. The upper ends of the bag dust collectors 2 are respectively connected to branch pipes, and the upper ends of the branch pipes are respectively connected to the main pipes. The branch pipes are respectively provided with manual butterfly valves 4 and pneumatic butterfly valves 5. A pressure differential transmitter 3 is respectively provided on one side of the bag dust collector 2. The differential pressure transmitter 3 is connected to the air inlet end and the air outlet end of the bag-type dust collector 2 through pipes. The differential pressure transmitter 3 is connected to the air inlet end and the air outlet end of the bag-type dust collector 2, and then detects the pressure difference at both ends of the bag-type dust collector 2, and then can judge the degree of obstruction inside the bag-type dust collector 2, and indirectly determine whether the bag-type dust collector 2 is cleared. The main pipeline is connected to the centrifugal fan 6, and the air outlet end of the centrifugal fan 6 is connected to the exhaust pipe 7. A vacuum pressure relief valve 11 is provided at the upper end of each silo 1 to ensure the pressure balance in the silo 1. All branch pipes of the bag-type dust collector 2 are converged into a main pipeline and discharged centrally through the exhaust pipe 7, which is convenient for centralized detection of pollutant emissions.

[0025] See also Figure 2 、 Figure 3 、 Figure 4 and Figure 5The bag dust collector 2 is provided with a bag dust collection assembly 21 and a spoiler assembly 22 inside. The lower end of the spoiler assembly 22 is provided with a reciprocating assembly 23. The spoiler assembly 22 includes a fixed frame 221, an upper U plate 222, a lower U plate 223, a connecting plate 224 and a fan blade 225. The fixed frame 221 is detachably connected to the bag dust collector 2. The upper U plate 222 is fixed on the fixed frame 221. The lower U plate 223 is located between the two upper U plates 222 and is fixed on the connecting plate 224. The fan blade 225 is rotated by blowing gas. The fan blade 225 The reciprocating assembly 23 drives the connecting plate 224 to move back and forth, and the reciprocating movement of the connecting plate 224 drives the lower U plate 223, and the gas containing dust enters the upper U plate 222 through the gap between the lower U plate 223, and then the gas rises through the upper U plate 222 and enters the bag dust removal assembly 21 for dust removal. At the same time, the lower U plate 223 performs reciprocating motion, slapping the dust-containing gas, so that the dust-containing gas rises evenly, and the lower end of the fixed frame 221 is symmetrically provided with a T-shaped slide groove, and the upper end of the connecting plate 224 is fixed with a T-shaped slide groove that is aligned with the fixed frame 221. The T-shaped slider corresponding to the groove is smaller than the length of the T-shaped slide, so that the T-shaped slider can slide in the T-shaped slide. A gap is provided between each of the upper U-plates 222. The lower ends of the gaps between the upper U-plates 222 are respectively provided with lower U-plates 223 with openings facing upwards. The upper U-plates 222 are fixed on the fixed frame 221, and the lower U-plates 223 are fixed on the connecting plate 224. The inner wall of the bag dust collector 2 is provided with a long strip, and the left and right ends of the fixed plate 211 and the fixed frame 221 are respectively provided with slides. The fixed plate 211 and the fixed frame 221 are respectively provided with slides. The fixed frame 221 is slidably connected to the long strip of the bag dust collector 2 through a slide groove. An arc-shaped long strip is provided in the center of the lower end of the upper U plate 222. The upper U plate 222 and the lower U plate 223 do not contact each other. The dust-containing gas will flow in the gap between the lower U plate 223 and the upper U plate 222, so that it passes through the spoiler component 22 evenly. The lower U plate 223 and the upper U plate 222 are staggered, and an arc-shaped long strip is provided at the lower end of the upper U plate 222, which is conducive to the uniform rise of the gas after passing through the spoiler component 22, preventing the occurrence of eddy currents and affecting the dust removal effect.

[0026] See also Figure 4 and Figure 5The reciprocating assembly 23 includes a mounting plate 231, a first gear 232, a second gear 233, a third gear 234 and teeth 235. The mounting plate 231 is fixed to the bag dust collector 2, and the fan blade 225 is rotatably connected to the mounting plate 231. The upper end of the fan blade 225 is fixed with a first gear 232, and the second gear 233 and the third gear 234 are rotatably connected to the mounting plate 231. The connecting plate 224 is provided with teeth 235 that mesh with the second gear 233. The second gear 233 meshes with the third gear 234 for transmission. The second gear 233 is transmitted to the connecting plate 224 through the teeth 235. The outer wall of the first gear 232 is provided with three groups of teeth and there are no teeth at other positions. The distance between each group of teeth is less than that between the first gear 232 and the second gear 233 and the third gear 234 respectively. The distance between the two contact points, the fan blade 225 drives the first gear 232 to rotate, and then drives the second gear 233 and the third gear 234 to rotate. At the same time, the second gear 233 engages with the teeth 235, and then drives the connecting plate 224 to move. When the first gear 232 rotates, the teeth of the first gear 232 first engage with the second gear 233, and the second gear 233 rotates. Since the second gear 233 engages with the teeth 235 on the connecting plate 224, the teeth 235 are driven to move. When the teeth on the first gear 232 are away from the second gear 233, the second gear 233 and the third gear 234 no longer rotate. When the teeth on the first gear 232 and the third gear 234 are engaged, the third gear 234 engages with the second gear 233, and then drives the connecting plate 224 to move in the opposite direction.

[0027] See also Figure 2 and Figure 6 The bag dust removal assembly 21 includes a fixed plate 211, and a plurality of air outlets 214 are opened at the upper end of the fixed plate 211. A plurality of cages 213 corresponding to the air outlets 214 are fixed at the lower end of the fixed plate 211. The outer wall of the cage 213 is sleeved with a dust removal bag 212, and the dust removal bag 212 is sleeved and fixed on the outer wall of the dust removal bag 212. When dust removal is performed, the dust removal bag 212 filters the dust in the gas and isolates it from the outside. The filtered gas flows upward through the cage 213 and the air outlet 214 and enters the branch pipe.

[0028] When using this utility model:

[0029] Start the centrifugal fan 6, open the pneumatic butterfly valve 5 at the outlet of the bag-type dust collector 2, adjust the opening of the electric regulating butterfly valve, observe the changes in the indication of the differential pressure transmitter 3, and stop adjusting the opening of the electric regulating butterfly valve when the differential pressure of the bag-type dust collector 2 is within a reasonable range. The system works normally. If the pneumatic butterfly valve 5 corresponding to a silo 1 is closed or opened during use, the opening of the electric regulating butterfly valve needs to be readjusted to ensure that the differential pressure of the bag-type dust collector 2 is within a reasonable range.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel silo top dust collection system, comprising a plurality of silos (1), characterized in that: The upper ends of the plurality of silos (1) are respectively provided with bag dust collectors (2) and vacuum pressure release valves (11), the upper ends of the bag dust collectors (2) are respectively connected with branch pipes, the upper ends of the branch pipes are respectively connected with the main pipes, the branch pipes are respectively provided with manual butterfly valves (4) and pneumatic butterfly valves (5), one side of the bag dust collectors (2) is respectively provided with pressure differential transmitters (3), the pressure differential transmitters (3) are respectively connected with the air inlet end and the air outlet end of the bag dust collectors (2) through pipes, the main pipes are connected with centrifugal fans (6), an electric regulating butterfly valve is provided between the main pipe and the centrifugal fans (6), and the air outlet end of the centrifugal fans (6) is connected with an exhaust pipe (7); The bag dust collector (2) is provided with a bag dust collection assembly (21) and a spoiler assembly (22) inside. A reciprocating assembly (23) is provided at the lower end of the spoiler assembly (22). The spoiler assembly (22) comprises a fixing frame (221), an upper U-plate (222), a lower U-plate (223), a connecting plate (224) and a fan blade (225). The fixing frame (221) is detachably connected to the bag dust collector (2). The upper U-plate (222) is fixed to the fixing frame (221). The lower U-plate (223) is located between two upper U-plates (222) and is fixed to the connecting plate (224). The reciprocating assembly (23) comprises a mounting plate (231), a first gear (232), a second gear (233), a third gear (234) and teeth (235); the mounting plate (231) is fixed to the bag dust collector (2); the fan blade (225) is rotatably connected to the mounting plate (231); the first gear (232) is fixed to the upper end of the fan blade (225); the second gear (233) and the third gear (234) are rotatably connected to the mounting plate (231); and the connecting plate (224) is provided with teeth (235) that mesh with the second gear (233).

2. The novel silo top dust collection system according to claim 1 is characterized by: The bag dust removal assembly (21) comprises a fixed plate (211), a plurality of air vents (214) are provided at the upper end of the fixed plate (211), a plurality of cages (213) corresponding one-to-one to the air vents (214) are fixed at the lower end of the fixed plate (211), and a dust removal bag (212) is sleeved on the outer wall of the cage (213).

3. The novel silo top dust collection system according to claim 2 is characterized by: A T-shaped sliding groove is symmetrically provided at the lower end of the fixed frame (221), and a T-shaped sliding block corresponding to the T-shaped sliding groove of the fixed frame (221) is fixed at the upper end of the connecting plate (224).

4. The novel silo top dust collection system according to claim 1 is characterized by: The second gear (233) is meshed with the third gear (234) for transmission, and the second gear (233) is transmitted to the connecting plate (224) via the teeth (235). The outer wall of the first gear (232) is provided with three groups of teeth and no teeth are provided at other positions. The distance between each group of teeth is less than the distance between the two points where the first gear (232) contacts the second gear (233) and the third gear (234).

5. The novel silo top dust collection system according to claim 1 is characterized by: Gaps are provided between the upper U plates (222), and lower U plates (223) with upward openings are provided at the lower ends of the gaps between the upper U plates (222). The upper U plates (222) are fixed on the fixing frame (221), and the lower U plates (223) are fixed on the connecting plate (224).

6. The novel silo top dust collection system according to claim 2 is characterized by: The inner wall of the bag dust collector (2) is provided with a long strip, and the left and right ends of the fixed plate (211) and the fixed frame (221) are respectively provided with sliding grooves, and the fixed plate (211) and the fixed frame (221) are slidably connected to the long strip of the bag dust collector (2) through the sliding grooves.

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