CN2430220Y - Forced rotary dust collector - Google Patents
Forced rotary dust collector Download PDFInfo
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- CN2430220Y CN2430220Y CN 00226362 CN00226362U CN2430220Y CN 2430220 Y CN2430220 Y CN 2430220Y CN 00226362 CN00226362 CN 00226362 CN 00226362 U CN00226362 U CN 00226362U CN 2430220 Y CN2430220 Y CN 2430220Y
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Abstract
The utility model relates to a forced rotary dust collector, which is characterized in that an exhaust inner cylinder inserted into a spiral casing and a cylinder body is a spiral casing shape inner cylinder; the cross section of the exhaust inner cylinder forms an involute shape; one end of a prolonged line of a connection line of an initiation end of the involute of the cross section of the spiral casing shape inner cylinder is intersected with a main shaft line of the spiral casing shape inner cylinder; the other end of the prolonged line is intersected with a connection ridge of a minimum rotation surface of the spiral casing and an air inlet pipe of a top spiral casing; the initiation end of the involute of the cross section of the spiral casing shape inner cylinder is provided with a partition board; the length of the partition board is the same with the depth of the spiral casing shape inner cylinder inserting into the spiral casing and the cylinder body; both sides of the partition board are respectively sealed and connected to the top spiral casing, the cylinder and an inner wall of the spiral casing shape inner cylinder. The utility model has the advantages of high dust collection efficiency and low cost.
Description
The utility model belongs to a kind of dust-precipitator that revolves by force, particularly revolves dust-precipitator by force about a kind of low-resistance efficient energy-saving.
The dust-precipitator that adopts in the cement industry mainly contains three types at present:
1, rotoclone collector, work as the outside exhaust of inner core referring to accompanying drawing 1 and accompanying drawing 2, dust-precipitator inside promptly is in negative pressure state, dust-contained airflow flows into spiral case by blast pipe, air-flow can be headed direct for the inner core lower port and went along fast way this moment, as we can see from the figure between inner core and cylindrical shell, leave bigger belt draught area, but enter the mouth between the inner core lower port at dust-precipitator, physical presence a shortest bigger convenient logical face, air-flow bar passage at first thus flows to release, thereby has only when this passage does not hold the ash-laden gas flow that flows into, and just might detour from both sides and flow to release.Therefore dust-contained airflow is rotated around cylinder inboard wall in rotoclone collector and flows that what give a dinner of welcome is small part air-flow and to flow to directly along the shortest logical face that release do not have through what give a dinner of welcome by equipment entrance be main air-flow part.So this equipment dust-collecting efficiency is low.In addition, the degree of depth of inserting cylindrical shell when inner core is big more, and resistance is big more simultaneously for the effect of giving a dinner of welcome good more (but preferably also below 90%), and the blower fan power consumption is also big more.
2, cottrell, it is to utilize effect of electric field to make the dust in the dusty gas separated from the gas referring to accompanying drawing 3, by high voltage direct current, keeps an electrostatic field that is enough to make gas ionization at two interpolars on the both positive and negative polarity of cottrell.Act on dust behind the gas ionization, make dust granules charged and move, be deposited on the electrode to opposite polarity electrode, thereby by separating in the gas.By the method for rapping electrode, dust is dropped in the aggregate bin of dust-precipitator bottom then, precipitate very tabularly, can be made into the flute profile waveform, second shape etc.; Corona plate is a strip, and it is spiral yarn shaped to can be made into star, prickle shape etc.This dust-precipitator dust collection effect is better, but the cost height.
3, dust-precipitator, referring to accompanying drawing 4: it is to utilize porous fibrous material that the dust-laden body is filtered, and makes dust separated from the gas.The general fibrous material of receiving is made cylindrical shape, so be the sleeve bag, the purge mode of sleeve bag collector is used mechanical vibrator, artificial rapping, pulse jet, different modes such as compression ring blowback.Aspect fibrous material.Textiles such as hairiness, cotton, glass fibre, synthetic fibers.Its removing amount is big, and use cost is also higher.
The purpose of this utility model is: provide a kind of air-flow rotation dynamics strong, and the dust-collecting efficiency height, energy consumption is low, and is simple in structure, and cost is low revolves dust-precipitator by force.
Design of the present utility model is: design a kind of dust-precipitator that revolves by force, it comprises spiral case, cylindrical shell, flue-dust retainer, unloading valve, air inlet pipe, exhaust inner core, discharge duct composition, the exhaust inner core is inserted in spiral case and the cylindrical shell, spiral case, cylindrical shell, flue-dust retainer, discharge duct are tightly connected successively, it is characterized in that: the exhaust inner core that is inserted in spiral case and the cylindrical shell is the scroll casing shape inner core, and its cross section is an involute shape; Extended line one end of scroll casing shape inner core cross section involute initiating terminal line and the main shaft of scroll casing shape inner core intersect, and the other end is connected crest line with top spiral case blast pipe interior plate and intersects with the spiral case surface of revolution of minimum area; At scroll casing shape inner core cross section involute initiating terminal dividing plate is housed, the degree of depth that dividing plate length and scroll casing shape inner core insert in top spiral case and the cylindrical shell is identical; The dividing plate both sides are sealedly connected on respectively on the inwall of top spiral case, cylindrical shell and scroll casing shape inner core.
Described cylindrical shell is to be connected and composed by eddy flow passage cylindrical shell and split channel cylindrical shell; Eddy flow passage cylindrical shell one port sealing is connected top spiral case lower port, and the other end is sealedly connected on split channel cylindrical shell upper port, and the lower port of split channel cylindrical shell is sealedly connected on the flue-dust retainer upper port; Split channel cylindrical shell and junction, eddy flow passage cylindrical shell bottom are flaring horn shapes, and its maximum gauge is 1.2～1.6 times of eddy flow passage barrel diameter, and it highly is 5～10 times of eddy flow passage cylindrical shell; Optimum range is 6～8 times.
Described its sectional area of scroll casing shape inner core is 1.3～2.5 times of air inlet area, and the optimal selection scope is 1.6～2 times.
The belt eddy flow airway that the barrel of described scroll casing shape inner core and eddy flow passage cylindrical shell constitutes, its breathing area is 0.6～1.6 times of air inlet area, optimum range is 0.8～1.2 times.
The lower port of described scroll casing shape inner core is covered with porous plate, and its pore diameter range is chosen in 50 millimeters of 10 millimeters～φ of φ, and the quantity in hole is directly proportional with air quantity.
Lower port outer one circle of described scroll casing shape inner core is connected with deflector, and its width is 5%～15% of an eddy flow passage barrel diameter.
Described flue-dust retainer is a cone, and its cone oblique angle is more than or equal to the angle of repose of collected dust material.
The utility model characteristics are as follows:
1, because the exhaust inner core that is inserted in spiral case and the cylindrical shell is the scroll casing shape inner core, its cross section is an involute shape; Extended line one end of scroll casing shape inner core cross section involute initiating terminal line and the main shaft of scroll casing shape cylindrical shell intersect, and the other end is connected crest line with top spiral case blast pipe interior plate and intersects with the spiral case surface of revolution of minimum area; At scroll casing shape inner core cross section involute initiating terminal dividing plate is housed, the degree of depth that dividing plate length and scroll casing shape inner core insert in top spiral case and the cylindrical shell is identical; The dividing plate both sides are sealedly connected on respectively on the inwall of top spiral case, cylindrical shell and scroll casing shape inner core.So shortcut is cut off by dividing plate, the ash-laden gas fluid can only could arrive the lower port of cylindrical shell along the cylinder inboard wall rotational flow, thereby forms swirling eddy.
2, because described cylindrical shell is to be connected and composed by eddy flow passage cylindrical shell and split channel cylindrical shell; Eddy flow passage cylindrical shell one port sealing is connected top spiral case lower port, and the other end is sealedly connected on split channel cylindrical shell upper port, and the lower port of split channel cylindrical shell is sealedly connected on the flue-dust retainer upper port; Split channel cylindrical shell and junction, eddy flow passage cylindrical shell bottom are flaring horn shapes, and its maximum gauge is 1.2～1.6 times of eddy flow passage barrel diameter, and it highly is 5～10 times of eddy flow passage cylindrical shell; The lower port of scroll casing shape inner core is covered with porous plate, and the quantity in hole is directly proportional with air quantity, and lower port outer one circle of scroll casing shape inner core is connected with deflector, so the dust after separating has reduced the back mixing probability of air-flow and dust away from scroll casing shape inner core lower port; The setting of deflector can prevent that the dust-contained airflow of not finishing separation from scurrying into the inner core lower port, and the setting of porous plate can make the air-flow of finishing in the cylindrical shell after the separation submissive, reduces the dust secondary fly-up.
3, the utility model design revolve dust-precipitator by force, exceed more than 30% than whirlwind dust-precipitator dust-collecting efficiency, revolve dust-precipitator by force and analyze dust-collecting efficiency from experimental study and can reach about 95%, and do not influence the eddy flow dynamics of dust-precipitator inside.It and cottrell relatively, cottrell dust-collecting efficiency height, generally 98%, and one-time investment and operating maintenance expense, it is to revolve 10～20 times of dust-precipitator expense by force that electricity gathers dust.Sleeve bag collector and electricity gather dust similar, are that its capital cost and operating maintenance take a little less than cottrell.The utility model is not only a kind of environmental protection equipment of environment purification, also is a kind of energy-saving equipment simultaneously, and under the condition of handling identical air quantity, the necessary electromotor capacity will reduce by 20～50% than whirlwind dust-precipitator.It not only is suitable for and the collection of cement industry to granular material, also is applicable to the collection of other industry to granular material.
Below in conjunction with the embodiment accompanying drawing the utility model is described further.
Accompanying drawing 1 is a known technology rotoclone collector structural representation.
Accompanying drawing 2 is known technology rotoclone collector A-A generalized sections.
Accompanying drawing 3 is known technology cottrell structural representations.
Accompanying drawing 4 is known technology sleeve bag collector structural representations.
Accompanying drawing 5 is the utility model example structure schematic diagrames.
Accompanying drawing 6 is the utility model Embodiment B-B generalized sections.
Among the figure: 1. scroll casing shape inner core; 2. top spiral case; 3. cylindrical shell; 4. cylindrical shell; 5. deflector; 6. porous plate; 7. flue-dust retainer; 8. unloading valve; 9. dividing plate; 10. air inlet pipe.
As shown in the figure: scroll casing shape inner core 1 inserts in top spiral case 2, cylindrical shell 3 and the cylindrical shell 4, cylindrical shell 3 is eddy flow passage cylindrical shells, its port sealing is connected top spiral case 2 lower port, the other end is sealedly connected on cylindrical shell 4 upper port, cylindrical shell 4 is split channel cylindrical shells, its lower port is sealedly connected on flue-dust retainer 7 upper port, and flue-dust retainer 7 lower port and discharge duct are tightly connected, and discharge duct is equipped with unloading valve 8.The axis of the main shaft of the main shaft of scroll casing shape inner core 1 and top spiral case 2 and cylindrical shell 3, cylindrical shell 4, flue-dust retainer 7 coincides; Extended line one end of scroll casing shape inner core 1 involute initiating terminal line and the main shaft of spiral case intersect, and the other end is connected crest line with top spiral case blast pipe interior plate and intersects with the spiral case surface of revolution of minimum area.At scroll casing shape inner core 1 involute initiating terminal dividing plate 9 is housed, the degree of depth that dividing plate 9 length and scroll casing shape inner core 1 inserts in top spiral case 2, cylindrical shell 3 and the cylindrical shell 4 is identical; Both sides are sealedly connected on respectively on the inwall of top spiral case 2, cylindrical shell 3, cylindrical shell 4 and scroll casing shape inner core 1.One week of lower port outer at scroll casing shape inner core 1 is connected with deflector 5, is covered with porous plate 6 in the lower port of scroll casing shape inner core 1, and flue-dust retainer 7 is cones, and its cone oblique angle is more than or equal to the angle of repose of collected dust material.Cylindrical shell 4 is that a cylindrical tube and junction, cylindrical shell 3 bottom are flaring horn shapes, and its diameter is 1.4 times of cylindrical shell 3, and it highly is 8 times of cylindrical shell 3.
Its operation principle is, when the scroll casing shape inner core 1 that revolves dust-precipitator by force to air stream efflux, device interior just is in negative pressure state, dust-contained airflow will be from air inlet pipe 10 access arrangements, because the effect of scroll casing shape inner core 1 and dividing plate 9, forced draft has only around cylindrical shell 3 inwalls and rotates a circle, could all flow to cylindrical shell 3 lower port, removing this does not have other approach, can effectively strengthen swirl strength and the flow process of dust-contained airflow in dust-precipitator thus, to improve the separative efficiency of dust from air-flow.The cylindrical shell 4 of enlarged diameter and deflector 5 can make the granular material that revolves by force after the separation lower port away from release scroll casing shape inner core 1, effectively reduce the mixing of phase once more that powder purifies the back air-flow and go out, and influence dust-collecting efficiency.Be provided with porous plate 6 in scroll casing shape inner core 1 lower port, can make the air-flow that enters scroll casing shape inner core 1 disperse to be distributed on the cross section of scroll casing shape inner core 1, prevent that the air-flow that has purified is concentrated into big strand, possess stronger flow velocity and cause the second phase again of powder and purifying gas flow to mix, destroy dust-collecting efficiency.The cone oblique angle of described flue-dust retainer 7 more than or equal to the angle of repose of collected dust material so that dust in time flows out from discharge duct.
Claims (8)
1, a kind of dust-precipitator that revolves by force, it comprises spiral case, cylindrical shell, flue-dust retainer, unloading valve, air inlet pipe, exhaust inner core, discharge duct composition, the exhaust inner core is inserted in spiral case and the cylindrical shell, spiral case, cylindrical shell, flue-dust retainer, discharge duct are tightly connected successively, it is characterized in that: the exhaust inner core that is inserted in spiral case and the cylindrical shell is the scroll casing shape inner core, and its cross section is an involute shape; Extended line one end of scroll casing shape inner core cross section involute initiating terminal line and the main shaft of scroll casing shape inner core intersect, and the other end is connected crest line with top spiral case blast pipe interior plate and intersects with the spiral case surface of revolution of minimum area; At scroll casing shape inner core cross section involute initiating terminal dividing plate is housed, the degree of depth that dividing plate length and scroll casing shape inner core insert in top spiral case and the cylindrical shell is identical, and the dividing plate both sides are sealedly connected on respectively on the inwall of top spiral case, cylindrical shell and scroll casing shape inner core.
2, a kind of dust-precipitator that revolves by force according to claim 1, it is characterized in that: described cylindrical shell is to be connected and composed by eddy flow passage cylindrical shell and split channel cylindrical shell; Eddy flow passage cylindrical shell one port sealing is connected top spiral case lower port, and the other end is sealedly connected on split channel cylindrical shell upper port, and the lower port of split channel cylindrical shell is sealedly connected on the flue-dust retainer upper port; Split channel cylindrical shell and junction, eddy flow passage cylindrical shell bottom are flaring horn shapes, and its maximum gauge is 1.2～1.6 times of eddy flow passage barrel diameter, and it highly is 5～10 times of eddy flow passage cylindrical shell; Optimum range is 6～8 times.
3, a kind of dust-precipitator that revolves by force according to claim 1, it is characterized in that: the axis of the main shaft of the main shaft of scroll casing shape inner core and top spiral case and eddy flow passage cylindrical shell, split channel cylindrical shell, flue-dust retainer coincides.
4, a kind of dust-precipitator that revolves by force according to claim 1, it is characterized in that: described its sectional area of scroll casing shape inner core is 1.3～2.5 times of air inlet area, and the optimal selection scope is 1.6～2 times.
5, a kind of dust-precipitator that revolves by force according to claim 1, it is characterized in that: the belt eddy flow airway that the barrel of described scroll casing shape inner core and eddy flow passage cylindrical shell constitutes, its breathing area is 0.6～1.6 times of air inlet area, and optimum range is 0.8～1.2 times.
6, a kind of dust-precipitator that revolves by force according to claim 1 is characterized in that: the lower port of described scroll casing shape inner core, be covered with porous plate, and its pore diameter range is chosen in 50 millimeters of 10 millimeters～φ of φ, and the quantity in hole is directly proportional with air quantity.
7, a kind of dust-precipitator that revolves by force according to claim 1 is characterized in that: lower port outer one circle of described scroll casing shape inner core is connected with deflector, and its width is 5%～15% of an eddy flow passage barrel diameter.
8, a kind of dust-precipitator that revolves by force according to claim 1, it is characterized in that: described flue-dust retainer is a cone, its cone oblique angle is more than or equal to the angle of repose of collected dust material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226362 CN2430220Y (en) | 2000-04-28 | 2000-04-28 | Forced rotary dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226362 CN2430220Y (en) | 2000-04-28 | 2000-04-28 | Forced rotary dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2430220Y true CN2430220Y (en) | 2001-05-16 |
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ID=33590227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00226362 Expired - Fee Related CN2430220Y (en) | 2000-04-28 | 2000-04-28 | Forced rotary dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2430220Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553731A (en) * | 2010-10-12 | 2012-07-11 | 株式会社川田 | Micro powder removing device |
-
2000
- 2000-04-28 CN CN 00226362 patent/CN2430220Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553731A (en) * | 2010-10-12 | 2012-07-11 | 株式会社川田 | Micro powder removing device |
| CN102553731B (en) * | 2010-10-12 | 2017-07-25 | 株式会社川田 | Micro mist removal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |