Static electricity elimination equipment in flour milling workshop

Abstract

The present invention relates to the technical field of safety protection equipment, specifically to a static elimination device for a flour milling workshop, including a dust passing pipeline, a control switch group, a dispersing mechanism and a static elimination mechanism; the dispersing mechanism includes a motor, a motor seat, an assembly seat and a dispersing frame, the motor is assembled and connected to one side of the dust passing pipeline through the motor seat, a rotating seat 1 is arranged on the inner side of the motor seat, the assembly seat is located on the opposite side of the motor seat, a rotating seat 2 is rotatably connected inside the assembly seat, a clamping end cover is arranged on the outer side of the assembly seat, a gasket 2 is arranged between the clamping end cover and the rotating seat 2, and the dispersing frame is fixed and plugged between the rotating seat 1 and the rotating seat 2. The pipeline-type appearance is flexible in installation location, which is convenient for equipment modification of flour processing enterprises. In a limited space, by extending the flow path of charged dust in the dust passing pipeline, the contact time between dust and charged ions emitted by the ion generator is increased, thereby improving the static elimination efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of safety protection equipment, in particular to static electricity elimination equipment in a flour milling workshop. Background Art

[0002] In the wheat flour milling process, the wheat needs to be screened first. After two primary screenings, the wheat enters the raw wheat silo, and then goes through one screening, stone removal, magnetic separation, and secondary screening before entering the blending silo. After two stone removals, two magnetic separations, and three screenings, it enters the wheat brushing process, and finally after three magnetic separations, it is sent to the clean wheat silo.

[0003] The wheat in the clean wheat bin is sent to the packaging bin after the first grinding, the first screening, the second grinding, the first powder loosening, the second screening, and finally the inspection screening and magnetic separation before being bagged.

[0004] To ensure safe production, effective fire prevention and anti-static facilities need to be installed in the flour milling workshop and warehouse, especially in the dry air season, to effectively prevent the occurrence of explosion accidents.

[0005] The existing static electricity elimination equipment uses ionized air to eliminate static electricity. The equipment body is large and occupies a large space. When installing, it is necessary to consider the coordination with other equipment, resulting in poor adaptability. In addition, when dust passes quickly inside the static electricity elimination equipment, it condenses into clumps, resulting in complex and uncontrollable charge characteristics inside the equipment, resulting in unreliable static electricity elimination effect. For this reason, we propose an static electricity elimination equipment for a flour milling workshop. Summary of the invention

[0006] The present invention provides an electrostatic elimination device for a flour milling workshop, which eliminates static electricity by ionizing compressed air and slowing down the dust flow rate. The pipeline-type appearance is flexible in installation location and is convenient for equipment modification of flour processing enterprises. In a limited space, the static electricity elimination efficiency is improved by extending the flow path of charged dust in the dust-passing pipeline and increasing the contact time between dust and charged ions emitted by an ion generator.

[0007] To achieve the above object, the present invention provides the following technical solution: static electricity elimination equipment for a flour milling workshop, including a dust passing pipeline, a control switch group, a scattering mechanism and a static electricity elimination mechanism;

[0008] Flanges are arranged at both ends of the dust passage pipe;

[0009] The control switch group is located outside the dust passage pipe;

[0010] The dispersing mechanism includes a motor, a motor seat, an assembly seat and a dispersing frame. The motor is assembled and connected to one side of the dust passage through the motor seat. A rotating seat 1 is arranged on the inner side of the motor seat. The assembly seat is located on the opposite side of the motor seat. A rotating seat 2 is rotatably connected inside the assembly seat. A clamping end cover is arranged on the outer side of the assembly seat. A gasket 2 is arranged between the clamping end cover and the rotating seat 2. The dispersing frame is fixedly inserted between the rotating seat 1 and the rotating seat 2.

[0011] Furthermore, a retaining spring and a gasket are provided on the inner side of the motor seat, the retaining spring and the gasket are located between the motor seat and the rotating seat, the gasket is located between the retaining spring and the rotating seat, the output shaft of the motor passes through the motor seat, the retaining spring and the gasket and is fixedly connected to the rotating seat, the motor is connected to the control switch group, the center of the rotating seat one and the rotating seat two are fixedly connected with a hexagonal positioning column, and the disassembly frame is inserted between the two hexagonal positioning columns.

[0012] Furthermore, the debonding frame includes a central axis and four rows of support rods vertically arranged outside the central axis, and the outer ends of each row of support rods are commonly equipped with an arc rod, and the arc rod cooperates with the gap of the inner wall of the dust passing duct when rotating.

[0013] Furthermore, the static elimination mechanism includes an ion generating component and a flow guiding component;

[0014] The ion generating assembly is in two sets, including a fixed seat, an ion generator, a wind hood, a fixed frame and an air outlet nozzle. The fixed seats are two symmetrically distributed on the outside of the dust passage duct. The ion generator is connected to the control switch group. The ion generator is assembled on the outside of the fixed seat. The ion generator is connected to the wind hood. The wind hood is located on the outside of the fixed seat. The wind hood seals the fixed seat from the outside. The fixed frame is fixed on the outside of the dust passage duct. The fixed frame is located in the wind hood. One end of the air outlet nozzle penetrates the dust passage duct and the other end is located in the fixed seat. The air outlet nozzle connects the dust passage duct and the space of the fixed seat. There are multiple air outlet nozzles, and the folded edges of the multiple air outlet nozzles are pressed tightly between the fixed frame and the dust passage duct.

[0015] Furthermore, the guide assembly includes an upper mounting frame, a lower mounting frame, a fixing rod, a guide plate and a positioning ring, the outer sides of the upper mounting frame and the lower mounting frame are fixedly connected to the inner wall of the dust passage duct, the fixing rods are two rods mounted between the upper mounting frame and the lower mounting frame, the upper mounting frame and the lower mounting frame, the guide plate is a plurality of rods mounted on the two fixing rods, the guide plate includes an arc-shaped portion and a straight portion, the position of the straight portion is lower than the position of the arc-shaped portion, two adjacent guide plates are arranged opposite to each other to form an S-shaped dust passage path, the lower surface of the arc-shaped portion is provided with a folded edge extending downward, the folded edge is provided with a groove matched with the air outlet nozzle; the upper surfaces of the air outlet nozzles are respectively fitted with the lower surfaces of adjacent guide plates.

[0016] Furthermore, the air outlet nozzle is a funnel-shaped nozzle. This structural design can not only increase the entry speed of the ion wind, but also prevent dust from escaping from the air outlet nozzle.

[0017] Furthermore, the plurality of guide plates are distributed in a spiral manner, forming a spiral dust passage path in the dust passage pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The electrostatic elimination equipment for a flour milling workshop disclosed in the present invention can connect the negative pressure fan and the dust collection hood above the grinder through a pipeline, and can be used with the existing dust removal equipment to improve it so as to complete the installation or transformation of the equipment, which has the advantages of flexible installation position and small space occupation.

[0020] 2. The electrostatic elimination equipment for a flour milling workshop disclosed in the present invention can, on the one hand, reduce the flow rate of the dust when the charged dust passes through each guide plate in sequence, thereby reducing the static electricity generated by the friction between the dust and the pipeline; on the other hand, it can increase the contact time between the dust and the charged ions emitted by the ion generator, thereby improving the efficiency of electrostatic elimination.

[0021] 3. The static elimination equipment for a flour mill disclosed in the present invention has a structural design of a scattering frame, which can form a spiral scattering area at the entrance of the dust pipe, thereby increasing the circumferential rotation coverage of multiple support rods, thereby reducing the probability of dust agglomeration, making the material properties of the dust entering the dust pipe more uniform and the electrical load more uniform, thereby improving the effect of eliminating static electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the static elimination equipment in the flour milling workshop in the embodiment;

[0023] Figure 2 for Figure 1 A partial cross-sectional view of

[0024] Figure 3Schematic diagram of the structure of the flow guide assembly in the embodiment;

[0025] Figure 4 It is a schematic diagram of the structure of the air outlet nozzle in the embodiment;

[0026] Figure 5 is a schematic structural diagram of a fixing frame in an embodiment;

[0027] Figure 6 for Figure 2 The enlarged view of the area marked with number A;

[0028] Figure 7 It is a schematic diagram of the structure in which a plurality of guide plates are spirally distributed in an embodiment.

[0029] In the figure: 10-dust passing duct, 11-flange, 20-control switch group, 31-motor, 32-motor seat, 33-assembly seat, 341-central axis, 342-support rod, 343-arc rod, 35-circlip, 36-gasket one, 37-rotating seat one, 38-rotating seat two, 39-tightening end cover, 41-fixed seat, 42-ion generator, 43-wind cover, 44-fixed frame, 45-air outlet nozzle, 461-upper mounting frame, 462-lower mounting frame, 463-fixed rod, 464-guide plate, 465-positioning ring, 466-folded edge. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-6 , this embodiment provides a static elimination device for a flour milling workshop, including a dust passing pipe 10, a control switch group 20, a scattering mechanism and a static elimination mechanism;

[0032] Flanges 11 are arranged at both ends of the dust passing pipeline 10, and the flanges 11 are connected between the negative pressure fan and the dust (flour) collecting hood above the grinder through a pipeline.

[0033] The control switch group 20 is located outside the dust passing pipe 10 .

[0034] The dispersing mechanism includes a motor 31, a motor seat 32, an assembly seat 33 and a dispersing frame. The motor 31 is assembled and connected to one side of the dust passing pipe 10 through the motor seat 32. The inner side of the motor seat 32 is provided with a retaining spring 35, a gasket 1 36 and a rotating seat 1 37. The retaining spring 35 and the gasket 1 36 are located between the motor seat 32 and the rotating seat 1 37. The gasket 1 36 is located between the retaining spring 35 and the rotating seat 1 37. The assembly seat 33 is located on the opposite side of the motor seat 32. The rotating seat 2 38 is rotatably connected in the assembly seat 33. The outer side of the assembly seat 33 is provided with a clamping end cover 39. The gasket 2 is provided between the clamping end cover 39 and the rotating seat 2 38. The output shaft of the motor 31 passes through the motor seat 32, the retaining spring 35, the gasket 1 36 and then is fixedly connected to the rotating seat 1 37. The motor 31 is connected to the control switch group 20. A hexagonal positioning column is fixedly connected to the center of the rotating seat 1 37 and the rotating seat 2 38, and the disassembly frame is inserted between the two hexagonal positioning columns.

[0035] The process of static electricity generation runs through multiple links between dust and contact objects. The principle of static electricity elimination is to reduce the amount of charged dust. Most static electricity elimination devices increase the power of the ion generator, but ignore how to control the charge uniformity of the static electricity elimination area. In this embodiment, the breakup frame includes a central axis 341 and four rows of support rods 342 vertically arranged on the outside of the central axis 341. The outer ends of each row of support rods 342 are jointly equipped with an arc rod 343. When rotating, the arc rod 343 cooperates with the gap on the inner wall of the dust passage duct 10. The positions of two adjacent rows of support rods 342 are staggered, thereby forming a spiral breakup area at the entrance of the dust passage duct 10, increasing the circumferential rotation coverage of multiple support rods 342, thereby reducing the probability of dust agglomeration, making the material properties entering the dust passage duct 10 more uniform and the charged load more uniform, thereby improving the effect of static electricity elimination.

[0036] The rotating seat 1 37 and the rotating seat 2 38 in this embodiment are both made of polytetrafluoroethylene.

[0037] The static elimination mechanism includes an ion generating component and a flow guiding component;

[0038] The ion generating assembly is in two sets, including a fixed seat 41, an ion generator 42, a wind cover 43, a fixed frame 44 and an air outlet nozzle 45. The fixed seat 41 is two symmetrically distributed on the outside of the dust passage duct 10. The ion generator 42 is connected to the control switch group 20. The ion generator 42 is assembled on the outside of the fixed seat 41. The ion generator 42 is connected to the wind cover 43. The wind cover 43 is located on the outside of the fixed seat 41. The wind cover 43 seals the fixed seat 41 from the outside. The fixed frame 44 is fixed on the outside of the dust passage duct 10. The fixed frame 44 is located in the wind cover 43. One end of the air outlet nozzle 45 penetrates the dust passage duct 10 and the other end is located in the fixed seat 41. The air outlet nozzle 45 connects the dust passage duct 10 and the space of the fixed seat 41. There are multiple air outlet nozzles 45 in this embodiment, and the folded edges of the multiple air outlet nozzles 45 are pressed tightly between the fixed frame 44 and the dust passage duct 10.

[0039] The guide assembly includes an upper mounting frame 461, a lower mounting frame 462, a fixing rod 463, a guide plate 464 and a positioning ring 465. The outer sides of the upper mounting frame 461 and the lower mounting frame 462 are fixedly connected to the inner wall of the dust passage duct 10. The fixing rods 463 are two rods mounted between the upper mounting frame 461 and the lower mounting frame 462. The upper mounting frame 461 and the lower mounting frame 462, the guide plate 464 is a plurality of rods mounted on the two fixing rods 463. The guide plate 464 includes an arc-shaped portion and a straight portion. The position of the straight portion is lower than the position of the arc-shaped portion. Two adjacent guide plates 464 are arranged opposite to each other to form an S-shaped dust passage path. The lower surface of the arc-shaped portion is provided with a folded edge 466 extending downward. The folded edge 466 is provided with a groove matched with the air outlet nozzle 45. The upper surface of the air outlet nozzle 45 is respectively fitted with the lower surfaces of adjacent guide plates 464.

[0040] In this embodiment, the air outlet nozzle 45 is a funnel-shaped nozzle. This structural design can not only increase the entry speed of the ion wind, but also prevent dust from escaping from the air outlet nozzle 45.

[0041] As another preferred solution of this embodiment, Figure 7 As shown, the plurality of guide plates 464 are distributed in a spiral pattern, forming a spiral dust passage path (as shown by the dotted arrow in the figure) in the dust passage duct 10, further increasing the contact area between ions and charged dust.

[0042] The static electricity elimination equipment for a flour milling workshop provided by the present invention has the following working principle:

[0043] After the negative pressure fan (not shown) is turned on, the flour dust scattered in the air enters the upper end of the dust passage duct 10 through the collecting hood, and the output shaft of the motor 31 rotates, driving the rotating seat 37 to rotate, and then driving the scattering frame to rotate to prevent dust agglomeration. The scattered dust passes through each guide plate 464 in turn. The structural design of the guide plate 464 is beneficial to reducing the flow rate of the dust and reducing the static electricity generated by the friction between the dust and the pipeline. On the other hand, it can increase the contact time between the dust and the charged ions emitted by the ion generator 42, thereby improving the static electricity elimination efficiency.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Electrostatic elimination equipment in a flour milling workshop, comprising a dust-passing pipeline, a control switch group, a dispersing mechanism and an electrostatic elimination mechanism; flanges are arranged at both ends of the dust-passing pipeline; the control switch group is located outside the dust-passing pipeline; the dispersing mechanism comprises a motor, a motor seat, an assembly seat and a dispersing frame, the motor is assembled and connected to one side of the dust-passing pipeline through the motor seat, a rotating seat 1 is arranged on the inner side of the motor seat, the assembly seat is located on the opposite side of the motor seat, a rotating seat 2 is rotatably connected in the assembly seat, a clamping end cover is arranged on the outer side of the assembly seat, a gasket 2 is arranged between the clamping end cover and the rotating seat 2, and the dispersing frame is fixedly inserted between the rotating seat 1 and the rotating seat 2; it is characterized in that: The static elimination mechanism includes an ion generating component and a flow guide component; the ion generating component is in two sets, including a fixed seat, an ion generator, a wind cover, a fixed frame and an air outlet nozzle, the fixed seat is two symmetrically distributed on the outside of the dust passage duct, the ion generator is connected to the control switch group, the ion generator is assembled on the outside of the fixed seat, the ion generator is connected to the wind cover, the wind cover is located on the outside of the fixed seat, the wind cover seals the fixed seat from the outside, the fixed frame is fixed to the outside of the dust passage duct, the fixed frame is located in the wind cover, one end of the air outlet nozzle penetrates the dust passage duct and the other end is located in the fixed seat, the air outlet nozzle connects the dust passage duct and the space of the fixed seat, there are multiple air outlet nozzles, and the folded edges of the multiple air outlet nozzles are pressed tightly between the fixed frame and the dust passage duct; The guide assembly includes an upper mounting frame, a lower mounting frame, a fixing rod, a guide plate and a positioning ring, the outer sides of the upper mounting frame and the lower mounting frame are fixedly connected to the inner wall of the dust passage duct, the fixing rods are two rods mounted between the upper mounting frame and the lower mounting frame, the upper mounting frame and the lower mounting frame, and the guide plate is a plurality of rods mounted on the two fixing rods, the guide plate includes an arc-shaped portion and a straight portion, the position of the straight portion is lower than the position of the arc-shaped portion, two adjacent guide plates are arranged relative to each other to form an S-shaped dust passage path, the lower surface of the arc-shaped portion is provided with a folded edge extending downward, and the folded edge is provided with a groove adapted to the air outlet nozzle; the upper surface of the air outlet nozzle is respectively fitted with the lower surfaces of adjacent guide plates; the multiple guide plates are distributed in a spiral shape to form a spiral dust passage path in the dust passage duct.

2. The electrostatic elimination equipment for a flour milling workshop according to claim 1, characterized in that: A retaining spring and a gasket are also provided on the inner side of the motor seat. The retaining spring and the gasket are located between the motor seat and the rotating seat. The gasket is located between the retaining spring and the rotating seat. The output shaft of the motor passes through the motor seat, the retaining spring and the gasket and is fixedly connected to the rotating seat. The motor is connected to the control switch group. A hexagonal positioning column is fixedly connected to the center of the rotating seat one and the rotating seat two. The disassembly frame is inserted between the two hexagonal positioning columns.

3. The electrostatic elimination equipment for a flour milling workshop according to claim 2, characterized in that: The debonding frame comprises a central axis and four rows of support rods arranged vertically outside the central axis, and the outer ends of each row of support rods are equipped with an arc rod, which cooperates with the gap of the inner wall of the dust-passing pipe when rotating.

4. The electrostatic elimination equipment for a flour milling workshop according to claim 1, characterized in that: The air outlet nozzle is a funnel-shaped nozzle. This structural design can not only increase the entry speed of the ion wind, but also prevent dust from escaping from the air outlet nozzle.

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