CN112870872B - Improved blowing pipe applied to tobacco pulse dust collector - Google Patents
Improved blowing pipe applied to tobacco pulse dust collector Download PDFInfo
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- CN112870872B CN112870872B CN202110108865.XA CN202110108865A CN112870872B CN 112870872 B CN112870872 B CN 112870872B CN 202110108865 A CN202110108865 A CN 202110108865A CN 112870872 B CN112870872 B CN 112870872B
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- sealing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
Abstract
The invention discloses an improved blowing pipe applied to a tobacco pulse dust collector, which comprises a base shaft insertion section (1), a blowing pipe body (2), a blowing hole (3), a sealing section (4), an installation part (5) and a welding part (7), and is characterized in that: the spraying pipe body and the base shaft insertion section are integrally formed, a seamless steel pipe is adopted for manufacturing, the other end of the spraying pipe body is connected with a sealing section, the sealing section (4) is made of 45# round steel, the sealing section is inserted into the other end of the spraying pipe body (2) in a transition fit mode, an installation portion (5) is welded to the other end of the sealing section, and the installation portion is made of a 4-8mm steel plate. The maximum stress (stress concentration position) of the injection tube occurs in the No. 45 round steel, so that the damage of compressed air pulse force to the structure of the injection tube can be effectively reduced, the problems of slotting and air leakage of a rupture hole of the injection tube are prevented, and the pulse injection force of the pulse dust collector is effectively guaranteed; simple structure, convenient to use, the practicality is strong.
Description
Technical Field
The invention relates to the technical field of dust removal equipment used in tobacco manufacturing production, in particular to an improved blowing pipe applied to a tobacco pulse dust remover.
Background
The existing injection pipe of the pulse dust collector in tobacco manufacturing production is manufactured by a process of cold flattening and grooving one end of a 1-inch galvanized pipe (Bronsted 33.7), and has the defects of large defect, the pipe wall of a cold-pressed flat part becomes thin, the toughness is poorer, the flat part is easy to bubble holes under the pulse impact of compressed air above 0.5Mpa for a long time, the slotted installation part is easy to crack and break, the majority of pulse compressed air is wasted, the pulse force is insufficient, the accumulated dust attached to the surface of a filter bag cannot be shaken off in time, the negative pressure maintenance of the dust collector is greatly influenced by the pressure difference of the filter bag, and the filter bag is maintained too frequently and is cleaned up once even in half a month.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an improved injection tube applied to a tobacco pulse dust collector, which can solve the problem that the existing injection tube of a cold flattening and slotting type at one end of a 1 inch galvanized pipe (Bronsted 33.7) has slotting and cracking holes and air leakage, the maximum stress (stress concentration position) is generated in 45# round steel, the damage of compressed air pulse force to the structure of the injection tube can be effectively reduced, the problems of slotting and cracking holes and air leakage of the injection tube are prevented, the pulse injection force of the pulse dust collector is effectively ensured, dust attached to the surface of a filter bag can be timely shaken off, the pressure difference of the filter bag is reduced, and the negative pressure supply capacity of the dust collector is improved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an improved generation jetting pipe for tobacco pulse dust remover, it includes basic axle system insertion section (1), the jetting body (2), the hole of blowing (3), sealed section (4), installation department (5), welding part (7), the one end of jetting body has basic axle system insertion section, basic axle system insertion section is inserted in the pulse gas outlet hole of pulse dust remover with transition fit form, the hole of blowing is a plurality of and unilateral trompil on the same generating line/axial line of jetting body, its characterized in that: the spraying pipe body and the base shaft insertion section are integrally formed and are made of seamless steel pipes, the other end of the spraying pipe body is connected with a sealing section, the sealing section (4) is made of 45# round steel, the sealing section is inserted into the other end of the spraying pipe body (2) in a transition fit mode, an installation portion (5) is welded to the other end of the sealing section, and the installation portion is made of 4-8mm steel plates.
Further, installation department (5) weld perpendicularly/vertically on the diameter face of seal segment (4) terminal surface, in seal segment (4) that the welding has the installation department inserted the other end of spray nozzle body, the installation department sets up with the axis of blowing hole (3) is perpendicular, keeps away from the one end of seal segment on installation department (5) and has seted up the recess.
Furthermore, the end face of the sealing section (4) and the joint face of the spray pipe body are firmly welded by adopting a welding part, and the surface of the whole spray pipe is treated by adopting a chromium plating protective layer (6).
Further, seal section (4) include first seal (41), second sealing ring (42), slit (43), and first seal, second sealing ring are the toper setting, and the second sealing ring cooperates in the periphery of first seal, keeps away from the one end that basic shaft system inserted the section on the second sealing ring and has seted up a plurality of slits, and a plurality of slits set up along the circumference of second sealing ring, first seal and second sealing ring transition fit or interference fit.
Furthermore, stress transmission holes (44) are formed in the center of the first sealing body (41), each stress transmission hole is a blind hole, and one end of each stress transmission hole is communicated with the inner cavity of the corresponding spray pipe body.
Furthermore, the first sealing body (41) is made of 45# round steel, and the second sealing ring (42) is made of a material with lower strength than the first sealing body and is made of 35# steel or 40# steel.
Further, the stress concentration position (8) of the blowing pipe is arranged inside the No. 45 round steel and is adjacent to the installation part (5) and the welding part (7).
According to the improved injection tube applied to the tobacco pulse dust collector, the maximum stress (stress concentration position) is generated in the No. 45 round steel, so that the damage of compressed air pulse force to the structure of the injection tube can be effectively reduced, the problems of cracking and air leakage of a cracking hole of the injection tube are prevented, the pulse injection force of the pulse dust collector is effectively guaranteed, dust deposited on the surface of a filter bag can be timely shaken off, the pressure difference of the filter bag is reduced, and the negative pressure effect of the dust collector is improved. Simple structure, convenient to use, the practicality is strong.
Drawings
FIG. 1 is a schematic view of an improved structure of a blowing tube applied to a tobacco pulse dust collector according to the present invention;
FIG. 2 is a schematic view of a partial structure of an improved blowing tube for a tobacco pulse dust collector according to the present invention;
FIG. 3 is a schematic structural view of another embodiment of the improved injection tube for a tobacco pulse dust collector of the present invention;
FIG. 4 is a schematic view of the stress distribution of a blowing tube applied to a tobacco pulse dust collector in the prior art;
fig. 5 is a schematic diagram of the stress distribution of an improved blowing tube applied to a tobacco pulse dust collector in the invention.
In the figure: the base shaft system insertion section 1, the nozzle body 2, the blowing hole 3, the seal section 4, the mounting section 5, the chrome plating protective layer 6, the weld 7, the stress concentration position 8, the first seal body 41, the second seal ring 42, the slit 43, and the stress transmission hole 44.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-5, an improved blowing pipe applied to a tobacco pulse dust collector comprises a base shaft insertion section 1, a blowing pipe body 2, a blowing hole 3, a sealing section 4, an installation part 5 and a welding part 7, wherein the base shaft insertion section 1 is arranged at one end of the blowing pipe body 2, the base shaft insertion section 1 is inserted into a pulse air outlet of the pulse dust collector in a transition fit manner, the blowing hole 3 is a plurality of and single-side openings are formed on the same bus/axial line of the blowing pipe body 2, and the improved blowing pipe is characterized in that: the spray pipe body 2 and the base shaft system insertion section 1 are integrally formed, a seamless steel pipe is adopted for manufacturing, the other end of the spray pipe body 2 is connected with a sealing section 4, the sealing section 4 is made of 45# round steel, the sealing section 4 is inserted into the other end of the spray pipe body 2 in a transition fit mode, an installation part 5 is welded at the other end of the sealing section 4, and the installation part 5 is made of a 4-8mm steel plate.
Further, installation department 5 welds perpendicularly/vertically on the diameter face of 4 terminal surfaces of seal segment, and the seal segment 4 that the welding has installation department 5 inserts in the other end of the body of spouting pipe 2, and installation department 5 sets up with the axis of blowing hole 3 is perpendicular, and the one end of keeping away from seal segment 4 on installation department 5 is seted up flutedly.
The end face of the sealing section 4 and the joint face of the spray pipe body 2 are firmly welded by a welding part 7, and the surface of the whole spray pipe is treated by a chromium plating protective layer 6.
According to the improved injection pipe applied to the tobacco pulse dust collector, the maximum stress (the stress concentration position 8) is generated in the No. 45 round steel, so that the damage of compressed air pulse force to the structure of the injection pipe can be effectively reduced, the problems of slotting, cracking, hole air leakage and the like of the injection pipe are prevented, and the pulse injection force of the pulse dust collector is effectively guaranteed.
As shown in fig. 3, in another embodiment, the sealing section 4 includes a first sealing body 41, a second sealing ring 42, and a slit 43, the first sealing body 41 and the second sealing ring 42 are disposed in a tapered shape, the second sealing ring 42 is fitted to the outer periphery of the first sealing body 41, a plurality of slits 43 are disposed on one end of the second sealing ring 42 away from the base shaft insertion section 1, the plurality of slits 43 are disposed along the circumferential direction of the second sealing ring 42, and the first sealing body 41 and the second sealing ring 42 are in transition fit or interference fit.
Further, a stress transmission hole 44 is formed in the center of the first sealing body 41, the stress transmission hole 44 is a blind hole, and one end of the stress transmission hole 44 is communicated with the inner cavity of the nozzle body 2. First sealing element 41 is made of 45# round steel, and second sealing element 42 is made of a material having a lower strength than first sealing element 41, such as 35# steel or 40# steel.
According to the invention, the stress transmission hole 44 and the second sealing ring 42 are made of materials with strength smaller than that of the first sealing body 41, so that the stress concentration position 8 is further controlled in the No. 45 round steel, the damage of compressed air pulse force to the injection pipe structure can be effectively reduced, and the installation and operation are convenient.
The invention relates to an improved blowing pipe applied to a tobacco pulse dust collector, which is manufactured by adopting a welding process of 'DN 25 (Browning 33.7) seamless steel pipe +45# round steel +6mm steel plate', and is subjected to surface chromium plating treatment. The base shaft system insertion section 1 and the spray pipe body 2 are made of a DN25 seamless steel pipe, and the base shaft system insertion section 1 is inserted into the pulse air outlet of the dust remover in a transition fit mode; the blowing holes 3 are a plurality of single-side holes and are formed on the same bus of the nozzle body 2, and the blowing holes 3 are manufactured according to the standard of 9-hot 5 corresponding to each filter bag; the sealing section 4 is made of 45# round steel (or 45# and 35# steel) and is inserted into the other end of the spray pipe body 2 in a transition fit mode; the mounting part 5 is made of a 4-8mm steel plate and is vertically welded on the diameter surface of the end surface of the sealing section 4, the sealing section 4 welded with the mounting part 5 is inserted into the other end of the spray pipe body 1, the mounting part 5 is vertical to the spray hole 3, and the joint surface of the sealing section 4 and the spray pipe body 2 is firmly welded; the chromium plating protective layer 6 is subjected to chromium plating treatment on the surface of the whole blowing pipe.
When the improved injection tube for the tobacco pulse dust collector is used, the injection tube manufactured by the welding process of the improved 'DN 25 seamless steel tube +45# round steel +6mm steel plate' does not crack and leak air under the impulse impact of compressed air of more than 0.5Mpa only by inserting the base shaft insertion section 1 into the pulse air outlet hole of the pulse dust collector and screwing the fastening nut of the installation part 5, and the pulse dust collector can clean the filter bag once after 9-12 months.
The method comprises the steps of establishing a blowing pipe manufactured by the existing 'cold flattening and grooving' process of a 1-inch galvanized pipe (hot 33.7) of a pulse dust collector and a three-dimensional model of the blowing pipe manufactured by the welding process of the novel 'DN 25 seamless steel pipe (hot 33.7) +45# round steel +6mm steel plate' of the invention, and analyzing the stress distribution of the blowing pipe under the action of pulse force by finite element software.
Under the action of the same pulse force, the blowing pipe manufactured by the existing '1 inch galvanized pipe (hot 33.7) cold flattening and grooving' process has the same position of the maximum stress as the position of a broken hole which appears in the actual blowing pipe, the novel 'DN 25 seamless steel pipe (hot 33.7) +45# round steel and 6mm steel plate' welding process manufactured blowing pipe has the maximum stress (stress concentration position 8) appearing in the 45# round steel, and the damage of the compressed air pulse force to the blowing pipe structure can be effectively reduced.
According to the improved injection tube applied to the tobacco pulse dust collector, the maximum stress (stress concentration position) is generated in the No. 45 round steel, so that the damage of compressed air pulse force to the structure of the injection tube can be effectively reduced, the problems of cracking and air leakage of a cracking hole of the injection tube are prevented, the pulse injection force of the pulse dust collector is effectively guaranteed, dust deposited on the surface of a filter bag can be timely shaken off, the pressure difference of the filter bag is reduced, and the negative pressure effect of the dust collector is improved. Simple structure, convenient to use, the practicality is strong.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides an improved generation jetting pipe for tobacco pulse dust remover, it includes basic axle system insertion section (1), the jetting body (2), the hole of blowing (3), sealed section (4), installation department (5), welding part (7), the one end of jetting body has basic axle system insertion section, basic axle system insertion section is inserted in the pulse gas outlet hole of pulse dust remover with transition fit form, the hole of blowing is a plurality of and unilateral trompil on the same generating line/axial line of jetting body, its characterized in that: the spray pipe body and the base shaft insertion section are integrally formed and are made of seamless steel pipes, the other end of the spray pipe body is connected with a sealing section, the sealing section (4) is made of No. 45 round steel, the sealing section is inserted into the other end of the spray pipe body (2) in a transition fit mode, the other end of the sealing section is welded with an installation part (5), and the installation part is made of a 4-8mm steel plate;
the sealing section (4) comprises a first sealing body (41), a second sealing ring (42) and a slit (43), the first sealing body and the second sealing ring are arranged in a conical shape, the second sealing ring is matched with the periphery of the first sealing body, one end, far away from the base shaft insertion section, of the second sealing ring is provided with a plurality of slits, the slits are arranged along the circumferential direction of the second sealing ring, and the first sealing body and the second sealing ring are in transition fit or interference fit; stress transmission holes (44) are formed in the center of the first sealing body (41), each stress transmission hole is a blind hole, and one end of each stress transmission hole is communicated with the inner cavity of the corresponding spraying pipe body.
2. The improved blowing pipe applied to the tobacco pulse dust collector is characterized in that the mounting part (5) is vertically welded on the diameter surface of the end surface of the sealing section (4), the sealing section (4) welded with the mounting part is inserted into the other end of the blowing pipe body, the mounting part is arranged perpendicular to the axis of the blowing hole (3), and one end, far away from the sealing section, of the mounting part (5) is provided with a groove.
3. An improved blowing tube for a tobacco pulse precipitator in accordance with claim 2, wherein the end face of the sealing section (4) is firmly welded to the bonding surface of the tube body by a welding part, and the surface of the entire blowing tube is treated with a chrome-plated protective layer (6).
4. The improved blowing tube for tobacco pulse dust collector as recited in claim 3, characterized in that said first sealing body (41) is made of 45# round steel, and said second sealing body (42) is made of a material having a strength lower than that of said first sealing body, and is made of 35# steel or 40# steel.
5. An improved blowing tube for tobacco pulse dust collector as defined in claim 4, characterized in that the stress concentration point (8) of the blowing tube is present inside the No. 45 round steel and adjacent to the mounting portion (5), the welding portion (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110108865.XA CN112870872B (en) | 2021-01-27 | 2021-01-27 | Improved blowing pipe applied to tobacco pulse dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110108865.XA CN112870872B (en) | 2021-01-27 | 2021-01-27 | Improved blowing pipe applied to tobacco pulse dust collector |
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| Publication Number | Publication Date |
|---|---|
| CN112870872A CN112870872A (en) | 2021-06-01 |
| CN112870872B true CN112870872B (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110108865.XA Active CN112870872B (en) | 2021-01-27 | 2021-01-27 | Improved blowing pipe applied to tobacco pulse dust collector |
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| EP2103350A2 (en) * | 2008-03-21 | 2009-09-23 | NGK Insulators, Ltd. | Honeycomb structure |
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| CN112870872A (en) | 2021-06-01 |
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